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Publication numberUS2942404 A
Publication typeGrant
Publication dateJun 28, 1960
Filing dateDec 5, 1958
Priority dateFeb 6, 1957
Publication numberUS 2942404 A, US 2942404A, US-A-2942404, US2942404 A, US2942404A
InventorsGrangie Pierre R C
Original AssigneeLouis Ernest Bianco
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Spinning machines
US 2942404 A
Images(9)
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Description  (OCR text may contain errors)

June 28, 1960 P. R. c. GRANGIEI 2,942,404

SPINNING MACHINES Filed Dec. 5, 1958 9- Sheets-Sheet 1 June 28, 1960 P. R. c. GRANGIE 2,942,404

SPINNING MACHINES Filed Dec. 5, 1958 9 Sheets-Sheet 2 June 1960 P. 'R..C. GRANGIE- 2,942,404

spnmmc mamas Filed Dec. 5, 1958 9 Sheets-Sheet 3 9 Sheets-Sheet 4 Filed Dec. 5. 1958 June 28, 1960 P. R. c. GRANGIE SPINNING MACHINES 9 Sheets-Sheet 5 Filed Dec. 5, 1958 @m mum Nnm P. R. C. GRANGIE June 28, 1960 SPINNING MACHINES 9 Sheets-Sheet 7 Filed Dec. 5, 1958 Mwnm Nhm mhm h SPINNING MACHINES 9 Sheets-Sheet 8 Filed Dec. 5. 1958 June 28, 1960 P. R. c. GRANGIE spmmuc MACHINES 9 Sheets-Sheet 9 Filed Dec. 5, 1958 nited States Patent Ofiic 2,942,404 Patented June 28, 1960 SPINNING MACHINES Pierre R. C. Grangi, Liaucourt, France, assignor of fifty percent to Louis Ernest Bianco, Paris, France Filed Dec. 5, 1958, Ser. No. 778,433

Claims prlority,tapplication France Feb. 6, 1957 20 Claims. (Cl. "57-583) The present invention relates to spinning machines in which a yarn is caused to travel from a point located on an axis fixed with respect to the machine frame to another point located on said axis, said yarn forming a balloon over at least a portion of the interval between these points. In such machines it is often advantageous to house a mechanism in the space limited by said balloon, said mechanism including a part rotatable about said main axis.

The main object of the invention is to provide, in a machine of this kind, a device for controlling and/or operating said mechanism from the outside of the balloon.

For this purpose, a machine according to the present invention includes an eccentric member journalled, about a second axis parallel to said main axis, in a piece mounted in said frame and advantageously rotatable about said main axis. Said eccentric member is coupled with the mechanism above referred to through means such that the angular position of the above mentioned part of said mechanism with respect to said main axis is positively determined by the position of said second axis with respect to said main axis, said eccentric member being also coupled with the spindle of the machine journalled about the main axis through means such that said eccentric 'member turns about said second axis at a speed constantly equal to the speed of rotation of said spindle about said main axis. The eccentric member is located between two planes perpendicular to said axes and passing respectively through the two above mentioned points, said eccentric member being provided with an opening for the passage of the yarn from one 'side to the other of said member. The opening is arranged to keep constant'the .;1

Preferred embodiments of the present invention will be hereinafter described with reference to the accompanying drawings, given merely by way of example and in which:

Fig. 1 is an elevational view, with parts in vertical axial section, of a spinning machine made according to i a first embodiment of the invention;

Fig. 2 is a perspective view, with parts cut away, of the portion II of said machine (see Fig. 1);

Fig. 3 is a view similar to Fig. 1, showing a second embodiment of the invention;

Fig. 4 is a detail view; Fig. 5 is a diagrammatic sectional view of a third embcdiment of the invention; 7

Fig. 6 is a view, similar to a portion of Fig. 1, of a fourth embodiment of the invention;

Fig. 7 is a perspective view, partly in section on the line VlI-VII of Fig. 8, of a portion of the machine of Fig. 6;

Fig.7;

Fig. 9 is a view, similar to Fig. 6, of a fifth embodiment of the invention; Y V i Fig. 10 is a view, similar to Fig. 6 of a sixth embodiment of the invention; 4 I

Fig. 11 is a perspective view, partly in section in the line XI-XI of Fig. 12;

Fig. 12 is an end view. of some of the elements shown by Fig. 11.

The machine (Fig. 1) includes a hollow spindle 1 journalled in bearings 2 mounted in the frame of said machine. This hollow spindle 1 rotates about its axis XY and it is driven by a belt 3 passing around a pulley 4 fixed to said spindle 1 and around a pulley 5 keyed on a shaft 6 driven by a motor 7 through transmission means 8.

A yarn a, called inner yarn,'is to be unwound from a let-off package 9 mounted coaxially with spindle 1. Package 9 is engaged on a tube 17 journalled, through ball bearings 16, on a tube 14 rigid with a kind of cage constituted by a disc 10, a circular hoop 11 parallel to said disc and a plurality of bars 12 connecting said hoop 11 with the periphery of said disc. 10. Rollers 13 surround said bars 12. This cage 10-11--12-13-14 is journalled through bearings 50 on a shaft 45-45: co-

axial with spindle 1. A weight 15 carried by said cage prevents it from rotating about its axis. Yarn a, when leaving package9, passes around the cage on rollers 13 to reach pulley 18 carried by disc 10.

On one of the bars 12 of the cage a yarn guiding pulley 32 is freely journalled. This pulley 32, which is provided with a plurality of grooves, is located in the same plane as a delivering drum or pulley 31 mounted on shaft 45.

Yarn a, on leaving pulley 18, passes on pulley 32 and is wound several times around said pulley and pulley 31. This last mentioned pulley drives yarn a, which passes through a pig-tail guide 51, carried by disc 10 and then follows the direction of bars 12, slides along hoop 11, passes through guiding hole 27 and notch 26a and enters tube 23 through hole 23a.

The other yarn, b, called the outer yarn, is delivered from a feed drum 21 mounted on a spindle 22,; aYarn b, upon leaving drum 21, passes several times iround a delivering cylinder or drum 28 and a freely rotating pulley 29 provided with several grooves for the yarn, said pulley 29 being located in the same plane as drum 28. Drum 28 is driven by shaft 6 through a transmission 30, for instance of the chain and sprocket-wheel type as diagrammatically illustrated.

On leaving drum 28, yarn b passes around a roller 48 and extends along axis XY as far as guiding hole 49 located on said axis. Then it leaves axis XY, passes through a member 36 which will be hereinafter more fully described, and then through a guiding groove 1a provided in hollow spindle 1. It leaves said groove 1a at 1b to pass through the hole 19 of a flyer disc 20 rigid with spindle 1 and then forms a free balloon to reach the guiding notch 26b from which it enters tube 23 through the hole 23b thereof.

In tube 23, yarns a and b are plied together to form cable c which passes around roller 52 to reach a delivering drum 33. Cable 0 turns several times round said drum 33 and a cable guiding pulley 34 provided with several grooves and from which it leaves the machine. Drum 33 is driven by shaft 6 through a transmisison 35, for instance of the chain and sprocket-wheel type as diagrammatically shown by Fig. 1.

Tube 23, in which yarns a and b are plied together to form cable c, is journalled about its axis in bearings 24 tube 23 and extending on opposite sides thereof. As for the above mentioned guiding hole 27, it is provided at the end of tube 23 substantially on axis X-Y. Tube 23 and arm 26 rigid therewith are rotated by the outer yarn b, itself driven by flyer disc 20. 7

From the preceding description, it results that the delivering drums 28 and 33 (for the outer yarn b and cable respectively) are operatively connected together since they are both driven from shaft 6 through transmissions 3i) and 35. In order to drive the delivering drum 31 which controls the feed of the inner yarn a, this delivering drum 31 is to be operatively connected with shaft 6. This is a difiicult problem because drum 31 is located inside the balloon formed by the outer yarn b and shaft- 6 is located on the outside of said balloon. The device according to the invention gives an advantageous solution of this problem.

For instance, as shown by Figs. 1 and 2, yarn bis made to pass through a passage or channel 36b provided in cylindrical member 36' journaled, about an axis x-y, in bearings 37 mounted in an eccentric housing 38 of a rotating barrel 39 itself journalled (about the main axis X-Y) in the frame of the machine through bearings 40. The respective ends of cylindrical member 36 and spindle 1 which face each other are provided with flanges, respectively 42 and 41, interconnected by links 43 of a length (between their pivots) equal to the eccentricity of the axis x-y of member 36 with respect to the axis X-Y of spindle 1 (thus forming a joint equivalent to an Oldham joint between member 36 and spindle l). The end of passage 36b on the left hand side of member 36 is on axis x-y. Furthermore the distance from, the end of passage 36b on the right hand side of member 36 to the axis xy of this member is equal to the distance from the left hand end of the passage 1a of spindle 1 to the axis X'Y of said spindle.

In these conditions, whatever he the movement of rotation of axis xy about axis X-Y (that is to say whatever be the movement of rotation of barrel 39 about axis XY) the yarn b is never subjected to pulling stresses. As a matter of fact, from point 49 to the entrance of passage 36b the yarn describes a cone. (more or less deformed by the action of the centrifugal force) thebase of which is the circle described about axis X-Y by the entranceof passage 36b. Inside passage 36b. the length is of course fixed. From the exit of pasage 36b to the entrance of groove 1a. the distance remains constant despite the relative movements of member 36 and spindle 1 and. irrespective of the speed of revolution of axis x-y about axis X-Y.

Therefore the yarn b travels through member 36' with out undergoing any stress which might risk breaking it. As a matter of fact, this property of such a yarn guiding device, which can easily be demonstrated geometrically, has been taught by experience to be quite reliable.v

Since member 36 has a movement which results from the composition of two elementary movements, one of rotation about x-y imposed by the connection of said member 36 with spindle 1 through the joint 41--43-42, the other of rotation of axis x- -y about axis X.-Y, and since this last mentioned elementary movement can be varied at will, it is then possible to use it to transmit the motion of shaft 6 to drum 31, and this with a variable ratio of transmission.

For this purpose, member 36 carries, an axial pin 3.6a engaged in a radial slot of an arm 47 rigid with, and extending at right angles to, the shaft 45 onwhich drum 31 is mounted, this shaft 45 being journalled, in tubular spindle 1, ooaxially therewith, through bearings 46.

Thus drum 31 is rotated about axis X-Y at a speed equal to the speed of rotation of axis xy about axis X-Y, i.e. to the speed of rotation of barrel 39,. As this barrel 39 is driven by shaft 6 througha transmission 44, it will be seen that the inner yarn delivering. 31 is l operatively connected with the outer yarn delivering drum 28 and with the cable delivering drum 33 since these three drums are driven from the same shaft 6.

Thus the speeds of said three drums are exactly interrelated. But the ratios of said speeds to one another can easily be modified, poss bly While the machine is in operation, by means of change speed devices A, B and C included in the transmissions 30,, 44 and 35- respectively. It is thus possible to vary the number of twists per unit of length of the cable. It is also possible. to obtain fancy cables in which the respective lengths of the two yarns plied together in the. cable-are deliberately made unequal.

As a rule, trausmisisons 44 and 30 are made such that the linear speeds of'the yarns a and b fed from drums 31 and 28 are equal and transmission 35 is, made such that the linear speed of the cable fed from drum 33 is in a ratio to said speed of yarns a and b corresponding to the shortening, due to theplying of said .yarns a and b together to. form cable a.

It. is, of in erest to note that, contrary to. what takes place in, similar machin f of the. prior art, the cage 1l 0.11-12;-1j3-,-I,4. does not rest upon an extension of spindle 1, which is necessarily rotating at very high speed (for'instance averaging, 5000 revolutions per minute), but upon an extension of shaft 45, which is running at much lower speed. The advantage is that the cage has much less tendency to be driven in rotation, due to friction.

The machine of, Fig. 1 an. easily be modified to obtain a double twisting of a yarn. It sufiices for this purpose, to omit the outer yarn feed drum or package 21 and, the cable delivering system 33, 34, 35. In such a. machine, the yarn, unwound from package 9 and having travelled, as above described for yarn a, as far as hole 2.3a, would leave tube 23 through hole 23b and then follow, in the opposed direction, the path above de scribed for yarn 12., The yarn collected. from delivering drum 28. (turning inav direction. opposed to that corresponding to the above description) would have the de sired. double, twist.

In the embodiment of Fig. 3, the inner yarn delivering, islocated 0n the. other side of package 9 from spindle 1. t. is carri d y-arms 1 r g with cage LQH11..lZ.-13f-1415. On Pig. 3, parts analogous to. those described with reference to Figs. 1 and 2 are desig ate y thesame reference numerals with a prime. It: is pointed, out thatin the construction of Fig. 3 the meansffor causing member 36" to. rotate about its axis at the. same speed as spindle, 1 are not constituted by a mechanical joint: such as a1 43 on re 1.

In the modification of Fig. 3, the. same result is obtained by theactionof the outer yarn. 12 forming a balloon be tween the hole 19 of the flyer disc; 20 carried by spindle 1, and a, hole 54- provided in a disc 53v rigid with member 36 Itv is pointed. out that hole 54 is the equivalent of the right hand end of the passage 36!) of Figs. 1 and 2.

In this construction, member 36' is provided with an axial; conduit for the passage of the outer yarn b, which enters: said conduit through a hole. 5

The cage 10-11;w12.-13-=a14- 1 5 is journalled on an extension 45a of shaft 45, butin this case this shaft does not drive drum 31.

The operation is the same as above described with reference to Fig. 1. However, in this case, the balloon formed by yarn b between guide-holes 19 and 54 is not or revolution.

Fig. 3, and the other being on the left hand side of said age, as. shown also on. Fig. at 9, 1 and made as shown in section on Figs. 1 and 2. Device earshot '8 36 -39 serves to transmit the motion of shaft 6 to the inner yarn delivering drum 31, as above described.

As for the device visible in elevational view at 39- 42-43-41, it serves-to control a mechanism for imparting a double twist to the inner yarn a. For this purpose it drives at the desired speed, through shaft 45--45a, a flyer disc 56 carried by said shaft. The inner yarn a, on leaving pulley 18, passes around a grooved pulley 32 and a drum 31, which controls the delivery of said yarn. Then'yarn a passes through a conduit 58 provided at the end of tube '14, through a longitudinal groove 59 of shaft extension 45a, through a hole 57 provided in disc '56, forms a balloon,'passes through a hole 7 8 conduit136b provided in; member 136, the left hand' (inlet) end of said conduit 136b being on. axis x-y.

, A rotating cylindrical piece '71 is journalled', about axis XY, in a tubular part 76, itself journalled in the machine frame about said axis XY; A pin 136a rigid with member 136 is pivoted in piece 71 about axis x-y.

A pulley 70 serves to drive barrel 139, thus causing the axis; xy of member 136, and therefore piece .71, to

. rotate, about the main axis X--Y. on the other hand,

61' provided in a disc 60 carried by a tube 62 journalled in bearings 63 mounted in member 36" coaxially'there with, and thence through the conduits provided axially in par-ts 62'and 36'. There, yarns a and bare plied together, to form cable 0 which passes around roller 52 tangent to the main axis XY. In this case, the pin which engages the radial slot of arm 47', instead of being rigid with member 36' is carried by tube 62.

It should be well understood that the means 42- 43-41' which form a joint of the Oldham type between two rotating parts, such as 36 and 1 journalled about respective parallel axes, may be of any suitable construction. In particular it has been found that it is very advantageous to constitute said means as shown by Fig. 4. Reference numerals 42 and 41 designate the same parts as on Fig. 1. At their peripheries, said parts 42 and 41 are provided with recesses of part-spherical shape as shown at R and R Balls B and B swivelled in said recesses are rigidly fixed to the ends of a rod 43' which passes through holes E and E provided in parts 42 and 41, the whole of elements B 43 and B forming a link equivalent to one of the links43 of Figs. 1 and 2. Of course, there are at least two such links between parts 42 and 41.

Fig. 5 diagrammatically shows a machine including, like that of Fig. 3, two devices, respectively for controlling the rotation of an inner yarn delivering drum 131 and that of a flyer disc 156 (on Fig. 5 the parts which correspond to similar parts of Fig. 3 are designated by the same reference numerals plus 100). u

The yarns travel substantially in the same way a's in the machine of Fig. 3. The difference is that yarn a, on leaving pulley 118, instead of passing, as inFig. 3, on parts 31, 32 before entering conduit 58, is guided by a pulley 114a carried by tube 114 to the inlet of conduit 158. Furthermore, on-leaving pulley 157, yarn a passes round a pulley 89 carried by hoop 111, and

then is guided by pulleys 90, 91, 92 carried by a hoop 8'8 (fixed because tube 87, rigid therewith, has an cecentric projection thereof housed in a tubular part 83 eccentric with respect to shaft 86 in which is housed the remainder of said tube 87). Then, yarn a passes around the delivering means constituted by drum 131 and grooved pulley 132. Said yarn then passes on pul: leys 93, 94 and 95 also carried by hoop 88, through an axial hole 98 of the structure carried by the right hand end of hoop 88, through a hole 96a of a rotating disc 97 and finally enters tube 99, Where it is plied with yarn b which has entered thesame tube, coming from a hole 96b of disc 97.

In this embodiment of the invention, the two devices for controlling, from the outside of the balloon formed by yarn b, respectively shaft 145, on which is fixed the flyer disc 156, and shaft 86, on which is fixed drum 131, are made as follows.

A barrel 139 is 'journalled in the frame of the apparatus by means of bearings 14%), about the main axis X--Y. In said barrel 139 is eccentrically journalled, about axis x-y, a cylindrical member 136, by means of bearings 137. The outer yarn b passes between rollers 148, through a guide-hole 149 on XYandthence through a member 136 is caused to rotate about its own axis x-y at the same speed asj that at which tubular part 76 is rotating about the main axis XY due to the interposition of links 73' (made as shown by Fig. 4) between said elements 76 and 136.

"In a likewise manner, tubular parts 76, 81 and 82 are caused, to rotate, about their respective axes 'X-Y, x --y and x;, y at the same speed as that at which spindle 101 is rotating about axis XY, owing to the provision of links 74, and84, respectively.

Asyarn b is guided, in said tubular members, through passages located at the same distance from the respective axes of. said tubular parts, yarn b is not stressed by the relative. movements of said parts, as above explained.

In tubular part 81 and coaxially therewith about axis x y there is journalled a cylindrical member 72. Both of these elements 72 and 81' are journalled, about axis x y in a barrel 79 journalled in the machine frame about the main axis X--Y. Barrel 79 is driven by means of a pulley 75.

' Cylindrical piece 71. and cylindrical member 72 are interconnected by a mechanical coupling 78 which causes both of them to rotate, about their respective axes XY and x -y at the same speed as that which is imparted to barrel 139 by pulley 70.

Thus, member 72 has a composite motion resulting from the composition of two elementary motions which are:

(a) A rotation about its axis x -y at a speed equal to that given by pulley 70; and

(b) A rotation of said axis x --y about the main axis XY at a speed equal to that given by pulley 75.

The first movement of rotation (about x y is transmit-ted through links 77, tubular part 83 and links 85 to the shaft 86 of drum 131.

The second movement of rotation (of x -y about XY) is transmitted through the crank coupling 72a-147 to the shaft of flyer disc 156.

In the embodiments of the invention illustrated by Figs. 1 to 5, the balloon described by the yarn is not a surface of revolution about the axis of the spindle. On the contrary, in the embodiments which will now be described this balloon is in the form of a surface of revolution.

The embodiment of Figs. 6 to 8 inclusive analogous, as a whole, to that of Fig. 1 and the elements common to both of these embodiments have been designated by the same reference numerals. It should be noted that, in the construction of Fig. 6, pulleys 18 and 32 are carried by a disc 210 which, contrary to the disc 10 of Fig. 1, is not necessarily stationary but may be driven in rotation, as it will be hereinafter explained.

In this embodiment of the invention, drum 31 is driven by an eccentric member 236, in the form of a cylindrical disc, having its axis at x-y, which is journalled, through bearings 237, in a cylindrical housing 238 of a barrel 239, itself journalled about axis XY in bearings 240 carried by the machine frame. As the axis x-y of member 236 and of the cylindrical housing 238 is offset with respect to the axis XY of spindle 1, the rotation of barrel 239111 bearings 240 causes the axis x-y of member 236 to rotate about axis XY, member 236 being rotating about axis XY, it sufiices, as in theabove embodiments, to connect these two elements 236 and 1' through a joint of the'Oldham type. In the. particular construction ofFigsr 6. to 8, this joint is. constituted by at. least. two. cylindrical fingers 241 carried by an extension 201 mounted. at the. end, of spindle 1. These fingers 241 are surrounded by concentrical rollers 243 the external radius of whichis r and. which are engaged in cylindrical holes 242 of radius R provided in eccentricv member 236., the axes of said fingers. and said holes being parallel to axis XY, radius R being equal to the sum of radius r and of the distance e between axis XY and axis. xy (see Fig. 8.), and the distance between the. center of each hole 242 and the axis xy being equal to the distance between the center of the corresponding finger 241 and axis XY, to wit d.

In order to rotate the axis xy of member 236 about axis XY, it suffices to rotate barrel 239 by means of a belt 244 for instance. This last movement of rotation of member 236 is transmitted to drum 31 through shaft 45. For this purpose, the end of shaft 45- opposed to that which carries drum 31 carries, rigid therewith and eccentrically positioned thereon, a cylindrical extension 247 the axis of which is in coincidence with the axis x--y, this extension being journalled in a cylindrical recess 247a of member 236, preferably with the interposition of a needle bearing. 7

The outer yarn b passes from the guiding element 49 located on axis XY to groove 1a of spindle 1, through a circular aperture of a relatively large diameter 265 provided in eccentric member 236. For this. purpose, the extension 291 of spindle 1 carries yarn, guiding means which extend through said aperture 265. of eccentric member 236.

For reasons of balancing, two such tubular guiding means 264 are provided, said guiding means being engaged in two cylindrical apertures 265. If these cylindrical apertures are given'the same radius R as. the above mentioned holes 242, the external diameter r, of the tubular guiding means 26.4, when they pass through said apertures, should be given a value smaller than the difference Re, so that these guiding means remain constantly out of contact with the walls of apertures 265.

Several control devices of this kind may be disposed in series for mechanisms housed inside a balloon, in particular, as illustrated, a supplementary mechanism capable of twisting the inner yarn as it is being. unwound from package 9.

Such a mechanism may be constituted by fixing disc 21% on a rotating rod 266 extending along axis X-Y, and by causing the inner yarn a to. pass from a set of pulleys 267 substantially along said axis, for instance through a longitudinal groove 2662 provided in rod 266, then radially around a pulley 26S and pulley l8, pulley 32, drum 31 and pulley 2.70, to travel axially to elements 23 to 27.

In order to rotate rod 266, this rod is extended beyond drum 31 to form an extension 266b journalled inside shaft 45 coaxially therewith, through bearings 269, this extension 2-66b passing through part 247, and there .is provided a second eccentric member 336 similar to member 236. The elements cooperating with member 336- are similar to those cooperating with member 236v and-designated by the same reference numerals plus 100. Of course, the same fingers 241 and. the same yarn guiding means 264 extend through the two eccentric members 236 and 336.

It should be noted that, since pulley 32 is carried by disc 210, the speed'of operation of the device constituted by drum 31 and pulley 3'2 depends not only upon the speed of barrel 239 but alsov upon that of barrel 339, and of course this must be taken into account. when designing the mechanism for driving the-belt 244 of barrel239 since the delivery of the yarn results from the difference between the speeds. of rotation imparted to-ba-rrels 239 and 339.

Finally tube 14 is mounted on rod 266 with tbeinterposition of ball bearings 250. g 3 H There isv thus obtained a cabling spindlemechanism the general operation of which is similar to. that'of the mechanism ofFigj 5.

The operation of the Oldham joint constituted for instance by fingers 241, 243 and the holes 242 is as follows. If part 201 is rotated through a given number of degrees about axis. XY, the eccentric member 236 is rotated through exactly the same number of degrees about axis XY. The rollers 243 of part 201 move along the periphery of the. cylindrical holes 242 for every revolution of part 201., and. consequently of member 236. It should. be. noted that, in the course. of this movement, the direction. of rotation of rollers 243 always the same and that, for every half-revolution, one of the rollers 243 pushes member 236 whereas. the other roller holds it back, which eliminates the individual play of each of the rollers 243 in its hole 242, the parts played by the respective rollers being reversed after every half-revolution of part 201.

Such a joint is silent, strong and very easy to lubricate.

The operation of joint 247-247a is as follows. Part 247 is rotatable about axis XY due to the fact that said part 247 is rigid with hollow shaft 45. On the other hand, said .part 247 is also movable with respect to axis xy as being journalled in the cylindrical hole 247a of eccentric member 236. Therefore if barrel 239 in which said member 236 is journalled is stationary, part 247 which is related to two stationary axes itself remains stationary. On the contrary, if barrel 239 is rotated through any number of degrees, this also causes axis xy to rotate through the same number of degrees about axis X-Y, together with part 247 and therefore hollow shaft 45 and drum 31.

It. will be readily understood that the yarn guiding means 264, independent of eccentricv members 236 and 336 but which do not interfere with the free rotation of these two members, enable the outer yarn b to pass through said members without any portion of the yarn as it travels from guiding element 49 to the hole 19 of the flyer disc 20 undergoing variations of length during the rotation of the spindle and of shafts 45 and 26612 coaxial therewith.

Of course, the. driving fingers 241 might be used. as yarn guiding means. In this case it would sufiice to provide these fingers with central inner conduits as shown at 264a on Fig. 9, which relates to a double twist spindle mechanism.

It would be possible, by stopping one of the barrels 239 and 339, to fix a part in a strictly stationary position.

For instance, in the double twist spindle mechanism shown on Fig. 9, barrel 339 has been replaced by an element 339a rigid with the frame of the machine and provided with a bearing 337 identical to that of the barrel 339 of Figs. 6 to 8. From the preceding explanations, it results that the central rod 266-266b is thus. stopped positively. It is then possible to fix on rod 266 a disc 210a corresponding to the combination of the discs 10 and 210 of Fig. 6, which permits of fixing in position the cradle of package 9 and also the axis of pulley 32.

Most of the. elements of Fig. 9 have already been described with reference to Fig. 6. The. only substantial difference consists in the fact that guiding element 49 and parts 23 to 27 have been cancelled, the last mentioned elements, 23 to 27', being replaced by a mere guiding element 271. Furthermore, tube 17 is mounted on rod 266 through ball bearings 16.

The direction of displacement of the yarn to be twisted is indicated by the simple arrows of Fig. 9.

The general operation of such a machine is well known in the art and need not be described here.

The modification illustrated'by Figs. 10, 11 and l2 differs from that of Figs. 6, 7 and 8 only in the coupling means interposed between eccentric; members 2361: and

the spindle. Ihe'same difference also applies to the cou pling means relative to the second eccentn'c member 336a. The coupling means for causing eccentric member 236a to rotate about its axis x--y at a speed equal to that at which spindle 1 is rotating about axis ,X--Y are, in the construction of Figs. -12, made as follows.

A coupling piece 271 in the, form of a parallelepipedon having its faces at right angles to one another includes two parallel faces 272 constituting a first set of guiding surfaces, and two other parallel faces 273 constituting a sec ond set of guiding surfaces. Guiding surfaces 273 are at right angles to guiding surfaces 202. Piece 271 is inserted between spindle 1 (in fact longitudinal extensions 276 rigid with said spindle) and eccentric member 236a, in such manner that, on the one hand, guiding faces 272 are slidable in contact with plane guiding surfaces 274 carried by elongated members 276 and that, on the other hand, guiding surfaces 273 are slidable in contact with plane guiding surfaces 275 carried by eccentric member 236a. The two other faces of connecting piece 271 are at right angles to axis XY.

Guiding surfaces 275 are the inwardly directed faces of two side projections 277 provided on eccentric member 236a.

In order to rotate the axis x-y of member 236a about axis XY, it suffices to drive barrel 239 by means for instance of'a belt. This movement of rotation of the axis of member 236a is transmitted to drum 31 through tubular rod 45 which is housed coaxially inside spindle 1 where it is carried by bearings 46. One end ofrod 45 carries drum 31 fixed thereto and the other end carries a cylindrical drum 247 the axis of which coincides with the axis x--y of eccentric member 236a, this drum 247 being journalled in a cylindrical bore 247a provided in 1 member 236a, preferably with the interposition of needle bearings. Y 1 For the passage of theexternal yarn from guiding element 49 located on axis X--Y to groove 1a, said grooves "1a are extended into elongated members, or fingers, 206, as visible at 10. i

As in the case of the construction of Figs. 6 to 9, it is possible toprovide several control devices of the kind above described in series for several respective mechanisms housed inside a balloon, in particular, as shown, a

supplementary mechanism for twisting the inner yarn asit is being unwound from package 9.

Of course, the eccentric member 2360 (or 336a) must be provided with hollow spaces 27 8 shaped and dimensioned in 'such manner that fingers 276 can move freely therein, and on the other hand the connecting piece 271 (371) must be provided with a hollow space 279 shaped and dimensioned in such manner that the extension 266b can move freely therein.

The operation of the coupling means constituted essentially by fingers 276, connecting piece 271 and eccentric member 236a is as follows. If spindle 1 rotates through a given angle about axis XY, eccentric member 236 rotates through exactly the same angle about axis x'y in view of the fact that a given direction fixed with respect to eccentric member 236a (guiding surfaces 275) is constantly kept by connecting piece 271, at right angles to a given direction fixed with respect to spindle =1 (guiding surfaces 274).

Such a coupling device is especially strong in view of the fact that the drive is effected through guiding surfaces which are in contact together over large areas (273 with 275 and 272 with 274). 1 This application is a continuation-in-part of my application of August 28, 1957, Ser. No. 680,808, new forfeited, entitled Improvements in Spinning Machines.

Ina general manner, while I have, in the above description, disclosed what I, deem to be practical and eflicient embodiments of my invention, it should be-well under stood that I do not wish to be limited thereto as there might be changes made in the arrangement, disposition 10 and form of the parts without departing from the principle of the, present invention as comprehended within the scope of the accompanying claims.

What I claim is:

1. In a spinning machine including a frame, means for causing a yarn to travel with respect to said frame from a point located on a main axis fixed with respect to said frame to another point located on said axis, a'spindle journalled in said frame about said axis for causing a portion of said yarn travelling between said points to form a balloon, and a mechanism carried by said spindle on. the inside of said balloon, said mechanism including a partjournalled in said spindle so as to be rotatable about said axis, a device for controlling from the outside of said balloon the angular position at any time of said part with respectto said axis, which device comprises, in combination, a barrel journalled in said frame about said main axis, an eccentric member journalled in said barrel about a second axis parallel to said main axis and at a fixed distance therefrom, said eccentric member being located between two planes perpendicular to said axes and passing throughsaid two points respectively, coupling means between said eccentric member and said rotatable part for determining at any instant the angular position of said rotatable part with respect to said main axis in accordance withdhe position of said second axis with respect to said main axis, coupling means between said eccentric member and said spindle for making the instantaneous speed of rotation of said eccentric member about said second axis equal to the instantaneous speed of rotation of said spindle about said main axis, said eccentric member being provided: with a passage for said yarn extending throughout said member from one side thereof to the other side, said passage being arranged to keep constant the length of the portion of said yarn extending between said two points. p .2. In a spinning machine including a frame, means for causing a yarn to travel with respect to said frame from a point located on an axis fixed with respect to said frame to another point located on said axis, means for causing said yarn travelling between said points to form a b311- loon, and a mechanism mounted in said frame inside said balloon, a device for controlling said mechanism from the outside of said balloon which comprises, in combina# tion, a part rotatable in said frame about said axis provided with an aperture for guiding said yarn so that said aperture describes, in a plane at right angles to said axis and located between said points, a circle having its center on said. axis, means for guiding the successive points of said yarn that are passing through another planeat right angles to said axis and located between said points along a circle located in said last mentioned plane and having'its center on said axis, a member provided with a. yarn guiding aperture, said member being movable in said frame to have said last mentioned aperture thereof moving in-a plane at right angles to said axis and located between said two first mentioned planes, means for 0peratively' connecting said member with said part to permit relative movement between them while keeping said two apertures constantly at the same distance from each other, said relative movement constituting a first elementary motion of said member, means for operatively connecting said member with said frame to permit relative movement between them, said last mentioned means being capable of permitting free operation of said means for operatively connecting said member with said pant, said relative movement between said member and said frame constituting a second elementary motion of said member, combined with said first elementary motion, said second elementary motion being controllable from the outside of said balloon, coupling means between said member and said mechanism operative in response to said second elementary motion of said member, and means on the outside of said balloon, for controlling the l-l displacements of said member with respect to said frame pertaining to said second elementary motion.

3. In a spinning machine including a frame, means for causing a yarn to travel with respect tosaid frame from a point located on an axis fixed with respect to said frame to another point located on said axis, means for causing said yarn travelling between said points to form a balloon, and a mechanism mounted in said frame inside said balloon, said mechanism including a piece rotatable about said axis, a device for transmitting rotary motion to said piece from the outside of said balloon which comprises, in combination, a part rotatable in said frame about said axis provided with an aperture for guiding said yarn so that said aperture describes, in a plane at right angles to said and located between said points, a circle having its center on said axis, means for guiding the successive points ofsaid yarn that are passing through another plane at right angles to said axis and located between said points along a circle located in said last mentioned plane and having its center on said axis, a member provided with a yarn guiding aperture, said member being movable in said frame to have said last mentioned aperture thereof moving in a plane at right angles to said axis and located. between said two first mentioned planes, means for operatively connecting said member with said part to permit relative movement between them while keeping said two apertures constantly at the same distance from each other, said relative movement constituting a first elementary motion of said member, means for operatively connecting said member with said frame to permit relative movement between them, said last mentioned means being capable of permitting free operation of said means for operatively connecting said member with said part, said relative movement between said member and said frame constituting a second elementary motion of said member, combined with. said first elementary motion, said second elementary motion being controllable from the outside of said balloon, coupling means between said member and said piece of said mechanism operative to rotate said piece in response to said second elementary motion. of said member, and means on the outside of said balloon for transmitting said second elementary motion to said member.

4. In a spinning machine including a frame, means for causing a yarn to travel with respect to said frame from a point located on a main axis fixed with respect to said frame to another point located on said axis, means for causing said yarn travelling between said points to form a balloon, and a mechanism mounted in said frame inside said balloon, said mechanism. including a piece rotatable about said axis, a device for transmitting rotary motion to said piece from the outside of said balloon which comprises, in combination, a cylindrical partv rotating in said frame about said axis provided, at one end thereof, with an aperture for guiding said yarn, whereby said aperture describes, in a plane at right angles to said axis and located between said points, a circle having its center on said axis, means for guiding the successive points of said yarn that are passing through another plane at right angles to said axis and located between said points along .a circle located in said last mentioned plane and having its center on said axis, a barrel journalled in said frame about said axis, at least a portion of said barrel being located between said two planes, an eccentric cylindrical member journalled in said barrel about an axis parallel to said first mentioned axis, said member being provided, at the end thereof facing said end of said part, with a yarn guiding aperture lo cated' at a distance from said second mentioned axis equal to the distance of the first mentioned aperture from said main axis, said second mentioned aperture be ing located in a plane. at right angles to said axes located between said two first mentioned planes, means for operatively connecting said member with said part to cause said member to rotate about said second. mentioned axis constantly at. the same speed about said last mentionedv axis as said. part is. rotating about said main a d's,,crank means. between said eccentric cylindrical member and said piece of said mechanism for transmitting to said piece the rotary motion of said second mentioned axis about said main axis, and driving means located on the outside of said. balloon for rotating said barrelabout said main axis.

5'. In a spinning machine including a frame, means for causing a yarn to travel with respect to said frame from a point located on a main axis fixed with respect to said frame to another point located on said axis, means for causing said yarn travelling between said points to form a balloon, and a mechanism mounted in said frame in side said balloon, said mechanism including a piece rotatable about said' axis, a device for transmitting rotary motion to said piece from the outside of said balloon which comprises, in combination, a cylindrical part rotating in said frame about, said axis provided, at one end thereof, with an aperture for guiding said yarn, whereby said aperture describes, in a plane at right angles to said axis and located between said points, a circle having its center on said axis, means for guiding the successive points of said yarn that are passing through another plane at right angles to said axis and located between said points along a circle located in said last mentioned plane and having its center on said axis, a barrel journalled in said frame about said axis, at least a portion of said barrel being located between said two planes, an eccentric cylindrical member journalled in said barrel about an axis parallel to said first mentioned axis, said member being provided, at the end thereof facing said end of said part, with a yarn guiding aperture located at a distance from said second mentioned axis equal to the distance of the first mentioned aperture from said main axis, said second mentioned aperture being located in a plane at right angles to said axes located between said two first mentioned planes, means for operatively connecting said member with said part to cause said member to rotate about said second mentioned axis constantly at the same speed about said last mentioned axis as said part. is rotating about said main axis, crank means between said eccentric cylindrical member and said piece of said mechanism for transmitting to said piece the rotary motion of said second mentioned axis about said main axis, driving means located on the outside of said balloon for rotating said barrel about said main axis, and means for varying the speed of, rotation of said barrel relatively to the speed of rotation of said part.

6. A device according to claim 4 in which said means for guiding the successive points of said yarn that are passing through said second mentioned plane are constituted by the other end of said eccentric member, which end is provided at its center, located on said second mentioned axis, with a yarn guiding aperture, said eccentric member being provided, with a channel for said yarn extending between said two yarn guiding apertures provided in said member.

7. A device according to claim 4 in which the means for operatively connecting said eccentric member with said part consist of a mechanical joint.

8. A device according to claim 4 in which the means for operatively connecting said eccentric member with said part consist of at least two links interposed each between two corresponding points of said member and of said part respectively, that of said two last mentioned points which is located on said member being located at the same distance from said second mentioned axis as the corresponding point located on said part is from said main axis, each of said links including a thin rod and two balls secured to the respective ends of said rod, each of said balls being swivelled in one of the elements, respectively said, member and said part, between which said. link is 13 for operatively connecting said eccentric member with said part consist of at least two links interposed each between two corresponding points of said member and of said part respectively, that of said two last mentioned points whichis located on said member being located at the same distance from said second mentioned axis as the corresponding point located on said part is from said main axis, each of said links including a thin rod and two balls secured to the respective ends of said rod, each of said balls being swivelled in one of the elements, respectively said member and said part, between which said link is interposed.

10. A device according to claim 4 in which the means for operatively connecting said eccentric member. and said part include two flyer members of the same radius respectively rigid with said member and with said part, and a portion of said yarn forming a balloon between said fiyer members.

11. A spinning machine which comprises a frame, means for causing a yarn to travel with respect to said frame from a point located on a axis fixed with respect to said frame to another point located on said axis, means for causing said yarn travelling between said points to form a 'balloon, and a mechanism mounted in said frame inside said balloon, said mechanism including two pieces rotatable about said axis and two devices each for transmitting a rotary motion to one of said pieces,

respectively, from the outside of said balloon, each of said devices including a cylindrical part rotating in said frame about said axis provided, at one end thereof, with an aperture for guiding said yarn, whereby said aperture describes, in a plane at right angles to said axis and located between said points, a circle having its center on said axis, means for guiding the successive points of said yarn that are passing through another plane at right angles to said axis and located between said points along a circle located in said last mentioned plane and having its center on said axis, a barrel journalledin said frame about said axis, at least a portion of said barrel being located between said two planes, an eccentric cylindrical member journalled in said barrel about an axis parallel to said first mentioned axis, said member being provided, at the end thereof facing said end of said part, with a yarn guiding aperture located at a distance from said second mentioned axis equal to the distance of the first mentioned aperture from said main axis, said second mentioned aperture being located in a plane at right angles to said axes located between said two first mentioned planes, means for operatively connecting said member with said part to cause said member to rotate about said second mentioned axis constantly at the same speed about said last mentioned axis as said part is rotating about said main axis, means between said eccentric cylindrical member and the piece of said mechanism which is to be driven by said device for transmitting to said last mentioned piece'the rotary motion of said second mentioned axis about said main axis, and driving means located on the outside of said balloon for rotating said barrel about said mainaxis.

12. A machine according to claim 11 in which said two devices are located respectivelyon opposite sides of said mechanism.

13. A machine according to claim 11 in which both of said devices are located on the same side of said mechanism.

14. A device according to claim 1 in which said passage extending through said eccentric member is a hole eccentrically located therein, further including a yarn guiding element rigid with said spindle extending through said hole 14 in a direction parallel to said main axis and located at a distance therefrom, the dimensions of said hole being such that said yarn guiding element does not come into contact with the wall of said hole.

15. A device according to claim 1 in which said passage extending through said eccentric member is a hole in the form of a cylinder of revolution about a third axis located at a fixed distance d from said second axis, further including a tubular yarn guiding element rigid with said spindle and extending through said hole, said tubular element having its axis parallel to said main axis and located at said distance d therefrom, the radius of said hole being greater than the sum of the diameter of said tubular element and of the distance between said main axis and said second axis.

16. A device according to claim 1 in which said barrel is fixed in said frame, whereby said rotatable part of said .mechanism is fixed in space.

17. A device according to claim 1 in which said coupling means between said eccentric member and said rotatable part include a cylindrical element rigid with said rotatable part but eccentric with respect thereto, the distance between the axis of said eccentric cylindrical element and said main axis being equal to the distance between said main axis and said second mentioned axis, said eccentric member being provided with a cylindrical housing having its axis in coincidence with said second mentioned axis and of a diameter just a little greater than that of said eccentric cylindrical element and said last mentioned element being journalled in said housing.

18. A device according to claim 1 in which the coupling means between said eccentric member and said spindle include at least two cylindrical fingers of radius r carried by said spindle, said eccentric member being provided with cylindrical holes of radius R in which said cylindrical fingers are engaged, the axes of said cylindrical fingers and of said cylindrical holes being parallel to said 'main axis, radius R being equal to the sum of radius r and of distance e between said main axis and said second axis, and the distance d between the axis of each of said cylindrical holes and said second axis being equal to the distance between the axis of each of said cylindrical fingers and said main axis.

19. A device according to claim 1 in which the coupling means between said eccentric member and said spindle include two elongated members rigid with said spindle and extending in a direction parallel to said main axis and located at a distance therefrom, said members being provided with respective.plane surfaces facing each other, parallel to said main axis and located at equal distances respectively therefrom, said eccentric member being provided with two plane surfaces facing each other, parallel to said second axis and located at equal distances respectively therefrom, and a connecting piece having two parallel opposed faces fitting slidably against said two parallel surfaces of said elongated members respectively and two parallel opposed faces transverse to said two faces and fitting slidably against said two parallel surfaces of said eccentric member, the two second mentioned faces of said connecting piece being directed, transversely to the two first mentioned faces thereof, said eccentric member being provided with holes for free passage therethrough of said elongated members whatever be the relative positions of said eccentric member and of said spindle.

20. A device according to claim 19 in which at least one of said elongated members is provided with a yarn passage extending from one end to the other thereof.

No references cited.

Non-Patent Citations
Reference
1 *None
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4848075 *Mar 10, 1988Jul 18, 1989Palitex Project Company GmbhMethod of adjusting the tensile force ratio between an outer thread and an inner thread when manufacturing cabled industrial yarns, and an apparatus for implementing this method
Classifications
U.S. Classification57/58.3, 57/58.7
International ClassificationD02G3/26, D02G3/28
Cooperative ClassificationD02G3/285
European ClassificationD02G3/28C