US 791745 A
Description (OCR text may contain errors)
PATENTED JUNE 6, 1905.
' c; L BAILBY, DBGD; E. H. BAILEY, ADMINISTRATRIX. MACHINE POR GOATING BoBBINs.
APPLIUATION FILED JAN. 21. 1905. v 4 SHEETS-snm' 1.
No. 791,745. PATNNTED JUNE 6. 1905'.
' C. L. BAILEY, DECD.
E. H. BAILEY, A-DMINISTRATRIX.
MACHINE POR COMING BOBBINS.
APPLICATION FILED J!.\.I1'.214.1905.4
. W366i l I?! 0 6112.377
No. 791,745. y' EATENTED JUNE 6k; 1905.
. o. L. BAILEY, DEGD.
E. H. BAILY, ADMINISTRATRIX.
MACHINE EOE GOATING EoBEINs.
APPLIOATION FILED JAN. 21.1905.
4 SHEETS-SHEET a.
. TE N No. '791,745- PATENTE!) JUNE 6, 19 05. r
o. L. BAILEY, DBGD. Iz, II. BAILEY, ADMINISTRATBIX.
MAGHINE'FOR GOATING BOBBINS. 'APPLIOATION FILED JAN. 21, 1905.A
; UNITED STAT-ns- Patentea .rune 6, 1905.
ELLA H.l BAILEY, AOF VVATERBURY, CONNECTICUT, ADMINISTRATRIX OF CHARLES L. BAILEY, DECEASED, ASSIGNOR TO DRAPER COMPANY, OF .HOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE.
MACHINE Fon GOATING BoBBlNs.
SPECIFICATION forming part of Letters Patent No. 791,745, dated June 6, 1905.
Application filed January 21,1905. Serial No. 242,052. I
To @ZZ whom, t may concern:
Be it known that CHARLES L. BAILEY, deceased, did invent an Improvement in Machines for Coating Bobbins, of whichy the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.
This invention has for its object the pro- Io duction of a machine for expeditiously and effectively applying a coating of protective and preservative material, such as shellao, to spinning-bobbins. Such bobbins are generally coated with shellac or other similar material I 5 to give a smoothhard surface thereto and also to preserve the wood from the effects of moisture. The coating material has been applied in various ways heretofore, principally by dipping the bobbin into the coating liquid, withzo drawing it, and permitting the surplus to drip therefrom; but this process ris slow and requires the frequent handling of the bobbins.
In the present invention a movable carrier is provided with a'series of holders adapted z5 each to detachably support a bobbin, and the carrier is moved to bring one bobbin after another into position to be acted upon by means which apply coating material thereto, thoroughly covering the surface of each bobbin. Thereafter the surplus material is removed from each coated bobbin in such a manner that the coating is simultaneously smoothed and evenly distributed, after which the bobbins are automatically removed from 3 5 the holders. The only manual operation required is the application of the bobbins to the holders of the moving carrier, so that the speed of operation of the apparatus is limited only7 by the skill of the attendant in applying vbobbins and the time required to properly coat and finish each bobbin. Inasmuch as the shellac dries very rapidly, this last-mentioned limitation as to speed is of comparatively minor importance. As the ,applicationof the coating material to the exposed part of anv empty bobbin-holder would be objectionable, manifestly, automatic means have been provided herein to render inoperative the coatlbearing-bosses c, the rim between such bosses ing mechanism when an empty bobbin-holder is presented thereto by the carrier. 5o
The various novel features of the invention will be fully described in the subjoined specification and particularly pointed out in the foll lowing claims.`
Figure 1 is a front elevation of a machine 55 for coating bobbins and embodying one form i' of the present invention.' Fig. 2 is a righthand side elevation thereof. Fig. 3 is a top Yor plan view of the machine. i Fig. iis aver` tical sectional detail on the irregular line 4 4, 6o
Fig. 2, looking toward the left. Fig. 5 is a longitudinal sectional detail of one of the bobbin-holders on the line 5 5, Fig. l, the parts being in the relative position assumed when a bobbin (shown in dotted lineslis applied thereto. Fig. 6' is a similar sectional view, but showing the relative position of the parts when 'the holder is empty; and Fig. 7 is an enlarged detail on the line 7 7 Fig. 2, looking toward the right, of a portion of the mechan- 7o ism by which the coating means is rendered inoperative by or through an empty bobbinholder.
Referring lto the drawings, a wide heavy base A supports a pedestal A', provided at its 75 upper end with a transverse head A2, provided with a seat to receive a bushing A3, held in place by a detachable cap Af, the bushing having extended through `it a non-rotatable' shaft A5, pinned or otherwise suitably secured to a boss a on a cap-plate a', bolted or otherwise secured to the rear end of the head A2, the shaft projecting beyond the frontend of the bushing for a purpose to be described.
Upon the front end of the bushing, which is shown. in dotted lines in Fig.\3, is mounted -th`e hub CX of the carrier, herein shown as comprising a series of arms o, radiating from the hub and terminating in a rim c', provided e at intervals with tubular enlargements or 9o being substantially L-shaped in cross-section. Herein ten bosses are shown on the carrier, (see Fig. 4,) each boss being adapted to sustain a bobbin-holder to be hereinafter described.
A ring-gear C is rigidly secured to the arms of the carrier and meshes with a pinion C',
fast on a shaft C2, supported in bearings A( (see Fig. 4) on the side of the pedestal AbeloW its head, the shafts C2 and A5 being in parallelism, and the former in the present embodiment of the invention constituting the main driving-shaft of the machine and having an attached pulley C3 at its rear end, (see Fig. 3,) driven by a belt Ci (partly shown in Fig. 2) from any suitable source of power. The rotation of the gear C acts, through the ring-gear C, to revolve the carrier at a much slower speed on the sleeve A3, the hub GX of the carrier being held from movement in one direction by the front end of the head of the pedestal and its cap A* and in the opposite direction by an arm, to be referred to, rigidly secured to the projecting end of the shaft A5. w Referring more particularly to Figs. 5 and 6, one `of the bobbin-holders will be described in detail, as the several holders are alike in construction. In the bearing-boss c2 is mounted an elongated sleeve 1, rigidly held in place by a set-screw 2, extended through the boss, the sleeve supporting rotatably within it a tube 3, provided at its rear end with a pulley 4, the latter being recessed, as shown, to embrace the rearwardly-projecting end of the .sleeve 1, the adjacent face of the pulley bearing against a flange 5 on the sleeve. Adjacent the front end 'of the sleeve the tube 3 is provided with an annular ange 6, and into the end of the tube is screwed the butt of a spindle 7, enlarged atA 8, adjacent the end of the tube and provided with spring-catches 9 to enter the usual chamber in the head of a bobbin and hold the same firmly upon the spindle. Within the tube 3 a long pin 10 is sl-idably mounted and constitutes a combined 'tripping and knock-olf device, as will be explained later, said pin being connected by a key 11 with a collar 12, slidable on the exterior of the tube 3 at its outer end, the key 11 extending through longitudinal slots 13 vin the tube. A bushing 14 loosely surrounds the end of the sleeve 1 projecting from the front of the carrier and is flanged at its outer end to take the thrust of a coiled springs, the opposite end of the spring bearing against the front of the boss c2. The normal action of the spring s forces the bushing outward against an enlargement 12X, secured to the collar 12, and thereby moves the latter out- Ward into the position shown in Fig. 6, and the knock-off pin 10 is drawn into the tube 3. A circular trip or follower 15 is mounted upon the rear end of the pin, and a cushion 16, of rubber or other yielding material, is mounted on the pin between the adjacent end of the pulley 4 and the trip 15. When a bobbin is applied to the spindle of one of the bobbin-holders, the butt of the bobbin engages the outer end of the collar 12, and as the bobrearward direction toward the face of the carrier into the position shown in Fig. 5, exposing the spring-catches 9, so that they can engage the interior of the bobbin, and at the same time the knock-off pin 10 is retracted, moving the trip or follower 15 away from the pulley 4 and into inoperative position. The tube 3, the spindle 7, and the pulley 4 attached thereto will rotate together within the bearing-sleeve 1, the collar 12 rotating in unison with such parts, as will be manifest from the foregoing description, the rotation of the bobbin-holder being effected during a certain portion of the bodily movement thereof in its circular path as the carrier revolves, for a purpose to be described. When the bobbin is applied to a holder, the collar 12 slides back until the key 11 engages the rear ends of the slots 13, and at such time the bushing 14 will also have assumed the position shown in Fig. 5, abutting against the outer end of the boss c".
In Fig. 1 a bobbin is shown on all of the bobbin-holders save one, the latter having just been acted upon by an ejecting device to eject the bobbin from the holder.
Referring to Fig. 3, the pedestal A has extended through it a cross-rod A7 between the sheaves A5 and C2 and at right angles thereto, the cross-rod at its opposite ends being provided with suitable supports a7 for sheaves AS, the relative position of the sheaves and carrier being shown clearly in Figs. 1, 2, and 3, and by reference to Figs. 2 and 3 it will be seen that the said sheaves are rotatable on axes parallel to the axis of rotation of the carrier and of the bobbin-holders, the several spindles 7 of the latter being parallel to the axis of the carrier and extending forwardly therefrom. Furthermore, a belt B, Fig. 1, passed around the sheaves A7, is adapted to engage several of the pulleys 4, hereinbefore referred to, three of such pulleys being shown in engagement with the belt in Fig. 1. This belt is driven from an overhead pulley B7, (partly shown in Fig. 1,) and the direction of travel of the belt is opposite to the revoluble movement of the carrier. When in the revolution of the latter solne of the pulleys 4 are brought into contact with the belt B, such pulleys and the corresponding bobbin -holders will be axially rotated in the direction of the small arrows, Fig. 1, and at high speed and at a speed dependent upon the speed of the belt B.
Referring to Fig. 3, the cross-rod A7 has secured to it near its left-hand end, viewing the machine from the front, a hub 17, provided with an elongated housing 18, in which is mounted an ejector, shown as a plunger 19, having at its rear end a head 20, and within the housing surrounded by a coiled spring s', bearing lat its rear end against the housing and at its front end against a collar 21, fast ou the ejector 19. The ejector is so positioned that the rear ends of one after another of the bin is pushed home the collar is forced in a knock-off rods 10 will be brought into aline- IIO ment therewith, and at that instant the 'ejec' tor previously retracted is released, and the expansion of the spring s drives it forward to deliver a sharp hard blowupon the knockof rod, driving the latter forward within the tube 3 of the bobbin-holder, and thereby restoring the parts of the holder to the relative position shown in Fig. 6. Such forward or return movement of the previously-retracted knock-oil pin causes the collar 12 to engage the butt of the bobbin and push it completely off from the spindle 7, so that the attendant can immediately place thereon a fresh bobbin to be treated. In order to retract the ejector 19, the rim c of the carrier is provided with a segmental slot of near each bobbin-holder to receive a screw-bolt c and connected with a plate c, held against the rear face of the rim of the carrier, said plate having a rearwardlyextended portion c7, terminating in a camface 08, Figs. 2 and 3. In each of these cam-l faces is detachably secured a preferably hardened-steel shoe 0,.the shoe being extended in the direction shown in Fig. 4 and so placed that its leading end is nearer the carrier than its rear end, the latter being so positioned that it will release the ejector 19 just as the adjacent knock-off pin is moved into alinement with said ejector. As one after another of the inclined shoes passes the ejector the latter will be retracted in its housing, compressing the spring s, and thereby rendering' the ejector operative, so that on the sudden release the spring throws the ejector forward to operate the knock-off pin 10, as has been described.
A table D, supported on uprights D on the v base A in front of and at one side of the pedestal A', is provided with upright guide-pins 22, adapted to extend through holes in ears 23 on a pan D2, adapted to contain the coat# ing material, nuts 24'when screwed onto the upper ends of the guide-pins holding the pan firmly in place.
A central threaded rod 25, provided with a` hand-wheel 26, is extended through a bearing 27, depending from the tablev D, 'and bears against the bottom of the pan, so that the latter can be vertically adjusted by loosening the nuts 24, the entire pan being raised or lowered as may be found desirable.
Upright arms 28, rigidly secured to the table D, provide bearings for a long rock-shaft 29, -supported at its rear end in a bearing 30,
forming part of a casting A10, bolted to the side of the pedestal A. (See Fig. `2.) A rock-'shaft 29 has clamped upon it rockerarms 31 at each end of the pan D and upturned above the latter to form swinging supports for a cylindrical brush DX, mounted on a rotatable shaft 32, extended through bearings in the upturned ends of the rocker-farms, the front end of the brush-shaft having attached to it a sprocket 33, connected .by a
sprocket-chain 34 with a smaller sprocket 35,
in a bearing A11 on the pedestal A.
`DX. 4brush is temporarily moved out of operative rotatably mounted on thev outer end of the rock-shaft 29, projecting beyond the adjacent rigid supporting-arm 28. A sheave 36,-' secured to or forming a part of the sprocket 35, is connected by a band 37 with a second'sheave 38,' fast on a countershaft 39, shown as mounted in bearings on the uprights D and Saidcounter-shaft at its rear end has an attached l sheave 40, driven by a belt or band 41 from a smaller sheave 42, fast on the main driving? shaft C2 of the machine.
The arrangements of the devices for impart-v .ing rotation to the brush-shaft 32 from the main driving-shaft C2 are shown clearly in Figs. 1 and V2, and inasmuch as the rockerarms 31 swing on the rock-shaft 29 as a fulcrum, the latter alsorotatably supporting the sprocket 35, it will be obvious that the rotation of the brush D will' be maintained even though the swinging. support therefor be idly attached to the rock-shaft 29,'is attached to one end of a spring S, the other end of the spring being connected by an adjustable link 44 with a fixed stud 45 near the .base of the apparatus, the tension of the spring tending to swing the brush-supports upward and torocked on its vfulcrum. f A short arm 43` rigy ward the center about which the carrier revolves. Y f
The brush-shaft 32 is parallel to the shaft; A5, and normally the periphery of the brush i will extend across the circular path of move- :brush is shown as operating upon a bobbin,
the holder of the latter having been moved' forward by the carrier to bring the pulley 4 into engagement with the running belt B.
Referring to Figs. 2 and 4, the rock-shaft 29 has clamped upon it an arm 46 and con- IOO nected by a short link 47 (see Fig. 7) with an Y arm 48, secured to or forming part of a hub 49, mounted to -rock on a stud 50, rigidly held vin a bearing 51 on the casting A10 in parallel-- ism with the rock-shaft 29, the said hub 49, having a cam extension 52 thereon, which is normally held upturned by or through the ac'- tion of the spring S in the positionshown in Fig. 7. An adjustable upright stop-screw 53,
mounted in a bracket 54 on the pedestal, has
a head 55, preferably provided with a rubber or other cushion 56, to be engaged by a short arm 57, clamped on the rock-shaft 29, the
Vstop-screw thus limiting the upward move-- ment of the swinging support for the brush The cushion 56 prevents shock when the &
position and then released, as will now be described.
It will be manifest that if the attendant fails to apply a bobbin to each bobbin-holder as the carrier revolves the spindle and springcatehes of such empty bobbin-holder would be moved directly into the path of the coating-brush D were the latter permitted to retain its normal operative position. (Shown in Fig. 1.) To prevent this, however, the trip or follower 15 on each knock-off pin 10 is so arranged that if the bobbin-holder is empty such trip will move into engagement4 and wipe over the cam 52, hereinbefore referred to, and will depress the cam, elevating the arm 48 on the hub 49, and thereby rocking the shaft 29 in the direction of the arrow 200, Fig. 7, against the action of the spring S. The normal position of the brush is shown in Fig. 7 by the dotted circle 58, and when it is moved. out of normal position, as described, its periphery assumes the position shown by the dotted circle 59, far enough away from the bare spindle and exposed spring-catches of the empty bobbin-holder to prevent the coating material from being smeared thereon. As soon as the empty bobbin-holder has passed by the cam extension 52 the spring S is free to act and immediately returns the brush to operative position, the stop-arm 57 bringing up at such time against the cushioned end 56 of the stop-pin 53. By adjusting the stoppin the normal position of the brush with relation to the path of the bobbin-holding spindles can be regulated, as will be necessary for bobbins of different external diameters. When a bobbin is applied to a bobbin-holder, the trip l5 is moved out of the path of the cam extension 52, as will be manifest from an inspection of Fig. 2, so that the brush will remain in its operative position.
From an inspection of Figs. 1 to 4 it will be seen that the brush D occupies such a position with relation to the pan that the periphery of the brush will dip into the pan and take up coating material to apply it to the bobbins as they are positioned by the revolution of the carrier. After the bobbins have been coated and before they are automatically removed from the holders by the adjusting' device the surplus coating material is removed, and at the same time the coating is smoothed evenly upon the eXteriors of the bobbins. rlo this end the forward projecting end of the shaft A5 has rigidly secured to it a depending arm 75 and carrying at its lower end a rigid rod 76, extended forward at right angles to said arm and in parallelism with the aXis'of the carrier, the rod having clamped upon it pairs of oppositely-extended arms 77 78, connected at their outer ends by cross-bars 79 and 80, respectively. The backs 55 of the brushes Ba are detachably secured to the two cross-bars by means of clamping-bolts 8l, the
brushes depending below the cross-bars 79 and 80, as shown in Fig. 1, and so positioned that they will wipe over the bobbins as the carrier revolves. By having a pair of wiperbrushes each coated bobbin is subjected to a double wiping action, so that not only is the surplus coating material effectively removed, but it is smoothed and evenly laid, it heilig understood from Fig. 1 that the bobbins are rotating while being acted upon by the brushes B5. The angular position of the brushes can be changed by varying the position of the arm 75, the latter being clamped on the projecting end of the shaft A5, as at 75x, so that the wiping or finishing brushes B cau be moved toward or from the coating-brush, as may be desired.
The several bobbins are indicated in the drawings at b2, and in Fig. 1 the bobbin on the holder nearest the left-hand one of the guide-sheaves AS is just about to be ejected, while the holder next above it is empty and ready to receive a bobbin to be coated. By the automatic device for rendering inoperative the coating-brush when an empty bobbin-holder is presented opposite thereto failure of the operator to fill each bobbin-holder will not result in clogging or gumming up the spindle and spring-catches ofthe empty holder or holders. The carrier will be revolved at such a speed that .the coating material can he applied properly to the bobbins and the surplus material removed therefrom before the ejecting device is brought into operation, and the speed with which the coating-brush is rotated and the speed of axial rotation of the bobbin holders during a portion of their bodily travel with the carrier can be regulated by the relative sizes of the transmitting gears or sheaves and the size and speed of the overhead pulley B.
In the particular construction herein shown the carrier is arranged to make fifteen revolutions and the coating-brush nineteen revolutions per minute, while the bobbin-holders are rotated at a much higher speed than either, preferably several hundred revolutions per minute. lf desired, the belt B for rotating the bobbin-holders may be carried direct from the overhead pulley B to and around the pulleys 4 at the right-hand side of the machine, viewing Fig. 1, instead of being passed around the sheave A at that side, thus starting the revolution of the bobbin-holders atan earlier point in their path of bodily movement with the carrier.
In Fig. 4 the normal position of the brush is shown in full lines and in dotted lines the position thereof when moved into temporarilyinoperative position by or through the presentation of an empty bobbin-holder.
The invention is not restricted to the precise construction and arrangement herein shown, as the same maybe modified or rearranged in of the invention.
Having fully described the invention, what is claimed, and desired to be secured by Letl. In a machineoil the class described, a-
-movable carrier, a series of holders thereon each comprising a spindle projectingf rom the face of the carrier and adapted to detachably support a bobbin, and a spring-catch to internally engage the Vbobbin, and means to apply coating material to the exterior of one after another of the bobbins as they are operatively positioned by the carrier.
' 2. In a machine ofthe class described, a movable carrier, a series of holders thereon and projecting beyond the face thereof, each adapted to detachably supporta bobbin, means to apply coating material to the exterior of the bobbins as they are operatively positioned by the carrier, and fiXedly-positioned means to subsequently remove surplus material from the bobbins.
3. In a machine oi the class described, a movable carrier, a series of holders thereon each comprising a'spindle adapted to detachably support a bobbin, and a catch to internally yengage and retain the bobbin on the spindle, means to apply vcoating material to the exterior of the bobbins as they are operatively positioned bythe carrier, an ejecting device to remove automatically the bobbins from the holders, and xedly-positioned means located between theejecting devicel and the coating means to remove surplus coating material from the bobbins.
4. In a machine of the class described, a movable carrier, a .series of holders thereon 'each comprising a spindle adapted to enter and detachably support a bobbin, and means including 'a rotating brush mounted in'parallelism with the axes of the bobbins and normally in operative position, to apply coating material to the exterior thereof as the bobbins are carried past the brush -by movement of the carrier.
' 5. In a machine oi the class described, a movable carrier, a series of rotatable holders thereon, each adapted to detachably support a 'bobbin, and a retaining device to interiorly Aengage each bobbin, means to apply coating material to the exterior of one after'another of the bobbins as they are moved past the coating means by the carrier, and means to rotate the bobbin-holders when the coating material is being applied. a
6. In a machine of the class described, a revoluble carrier, a circularly-arranged series of holders thereon, each comprising a rotatable 'spindle adapted to detachably support a bobbin, and a catch to internally engage and retain the bobbin on the spindle, means to apply coating material to the exterior of the bobbins one after another, as they are operatively positioned by the carrier, and an ejecting device to remove automatically the coated bobbins from their holders. f
7. In a machine ofthe class described, arevoluble carrier, acircularly-arranged series ofholders thereon, each comprising a spindle adapted -to detachably support a bobbin, and a device to retain it on the spindle', means to vapply coatingmaterial to the exterior of the bobbins, as they are operatively positioned by the carrier,'and iixedly-positioned means to subsequently'remove surplus material from the coated bobbins.
v8. In a machine of the class described, a revoluble carrier, a circularly-arranged series of holders thereon, eachV adapted to detachably support a bobbin, means to apply coating material to the exterior of the bobbins as they are operatively positioned by the carrier, an ejecting device to remove automatically the coated bobbins from their holders, and iixedlypositioned meansA intermediate lsaid ejecting device and the coating means to remove sur'- plus material from the bobbins.
9. In a machine of the class described, a revoluble carrier', a circularly-arranged series of bobbin-holders thereonnear its periphery, and
by movement of the carrier, a brush mounted' in xed position to remove surplus material from the coated bobbins, and means to rotate the bobbins while the coating material is applied thereto and the surplus material removed therefrom. v
10. In -a machine of the class described, a f
movableI carrier, a series of rotatable bobbinholders mounted thereon and each comprising a spindle and a catch, means including a rotating brush normally and operatively located in the' path of movementof' the spindles, to apply coating material to the exterior of the bobbins as they are swept past the brush by the movement of the carrier, and means to automatically retract the brush from engagement with a bare spindle.
l1. In a machine of the class described, a revoluble carrier, a circularly-arranged series of rotatable holders mounted thereon and each adapted to detachably support abobbin, means to. rotate said holders about their own axes, during a portion of 'their bodily movement with the carrier, and means normally in operative position .to apply coating material to and to remove surplus material from the exterior of thebobbins whilethey are axially rotated.
12. In a machine of the class described, a revoluble carrier, a circularly-arranged series of rotatable holders thereon, each adapted to detachably support a bobbin, normally operative means to apply coating materialto the IOS IIO
lobbins as they are positioned one after another by the carrier, means to axially rotate the bobbin-holders during the application of coating material to the bobbins, and a device to render the coating means inoperative when an empty holder is operatively positioned with relation thereto.
13. In'a machine of the class described, a revoluble carrier, a circularly-arranged series of holders thereon, each comprising a spindle and a spring-catch to support and retain a bobbin placed thereon, a spring-controlled pin in axial alinementwith each spindle, and adapted to be retracted by the bobbin when placed upon a holder, means to axially rotate the holders during a portion of their bodily moveinent by and with the carrier, means including a rotating brush to apply coating material to the bobbins when operatively positioned by the carrier, the bobbins at such time being axially rotated, and an ejecting device comprising` a spring-actuated ejector and a series of retracting-cams mounted on the carrier, to retract the ejector as each bobbin -holder approaches a position in axial alinement therewith, release of the ejector' by the cam permitting the ejector to strike the spring-controlled pin of the holder, and thereby force the bobbin from the holder.
14. In a machine of the class described, a revoluble carrier, a circularly-arran ged series of bobbin-holders mounted thereon adjacent its periphery, and each including a rotatable spindle and a spring-catch to engage and support a bobbin when slid thereon, the spindles being arranged in parallelism with the axis of revolution of the carrier, means to apply coating material to the bobbins, and including a rotatable brush, rocking supports on which it is mounted and movable toward and from the path of lmovement of the bobbinholding spindles, and means forming a part of each bobbin-holder adapted to move the brush-supports and thereby render the brush inoperative when an empty bobbin-holder is operatively positioned by movement of the carrier, the application of a bobbin to a holder rendering said means inoperative.
15. In a machine of the class described, a revolu ble carrier, a circularly-arranged series of bobbin-holders thereon, leach comprising a rotatable sleeve having a ixedly-attached spindle and aspring-catch to receive and hold in positiona bobbin, a pin longitudinally movable within the sleeve and provided at one end with a follower, and a spring-controlled collar fixedly connected withv the other end of the bobbin and eccentric to the spindle, application of a bobbin to the holder acting through the collar to retract the pin, combined with coating means including a rotatable brush, a swinging support therefor having a cam, means to rotate the spindles as they are positioned with relation to the brush by revolving movement of the carrier, and
an intermittingly-operating ejecting device to strike the pins of the bobbin-holders and restore them to normal position, such retractive movement of each pin acting through its attached collar to remove the bobbin from the spindle, the follower on the pin of an empty bobbin-holder cooperating with the cam on the brush-support to swing the latter and the brush into inoperative position, to prevent the application of coating material to the bare spindle.
16. In a machine of the class described, a revoluble carrier, a circularly-arranged series of rotatable bobbin-holders thereon, each having a spindle in parallelism with the axis of revolution of the carrier, and a spring-catch to internally engage and retain a bobbin on the spindle, means to axially rotate the hobbin-holders during a portion of their bodily movement on the carrier, means to apply coating material to the bobbins during their axial rotation, flexible wipers to thereafter cooperate with the rotating bobbins and remove surplus material therefrom, and means to antomatically remove the bobbins one after another from the holders after the latter have ceased their axial rotation.
17. In a machine of the class described, a revoluble carrier, circularly-arrangcd holding devices thereon to detachabl y and rotatably support a series of bobbins in parallelism with the axis of revolution of the carrier, means to apply coating material to the bobbins, including a rotating brush, a swinging support therefor, an adjustable stop to limit the swinging movement of the brush toward the circular path of movement of the bobbins, means to automatically retract the brush whenever an empty bobbin-holding device is operatively positioned by the carrier with relation to the brush, means to automatically remove from the holding devices coated bobbins, and means to axially rotate the holding devices as theyY are bodily moved past the brush.
18. In a machine of the class described, a revoluble carrier, acircularly-arranged series of axially-rotatable bobbin-holding devices mounted thereon, and each provided with a knock-off pin, a series of cams on the opposite side of the carrier, one for each bobbinholding device, means to axially rotate said bobbin-holding devices during a portion of their bodily movement, means to apply coating material to the bobbins, and to remove surplus material therefrom during the axial rotation of the holding devices, and a springcontrolled ejector adapted to be engaged and retracted by one after another of the cams on the carrier, the release of the ejector by cach cam permitting it to resume its normal position, and to thereby cooperate with the knockoff pin of the adjacent bobbin-holding device to eject a bobbin therefrom.
19. In a machine of the class described, a
revoluble carrier, a series oflaXially-rotatable,
holders thereon, each adapted to detachably support a bobbin, means to apply coating ina-- the carrier, wiping means to remove surplus material from the coated bobbins, means to vertically adjust the height of the pan, and an ejecting device to automatically eject the coated and wiped bobbins from the holders.
20. In a machine of the class described, a revoluble carrier, a circu'larlyearranged series of holders thereon each adapted to detachably support a bobbin, a combinedV trip and bobbin-knocking-o device for each holder, the application of the bobbin to a holder moving Said device into abnormal position, means, including a brush and a swinging support therefor, to apply coating material to one after another of the bobbins as they are operatively positioned by the movement of the carrier,
and an ejector to thereafter coperate with' the knock-offl devices of the holders to automatically remove the bobbins, the trip portions of each of said knock-off devices 'normally moving in the path of and being'adapted to engage the swinging support of the coat- 4ing-brush, to thereby move the brush into inoperative'position whenever an empty bob-v bin-holder is movedby the carrier adjacent thereto.
21. In a machine of the class described, a carrier` a clrcularly-arranged series of holders thereon each comprising a spindle adapted to detachably support a bobbin, and a catch to internally engage the bobbin and retain it on the spindle, means to apply coating material vto the exterior of the bobbins one after another, and means to eiiect relative movement of the carrier and the coating means to effect cooperation of the latter with .the bobbins successively.
In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
' ELLA H. BAILEY, Admmstmtrt'm of O/mrles L. Bentley, de-
RosE A. CLARKIN, ROBERTV A. LOWE.-