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Publication numberUS1764676 A
Publication typeGrant
Publication dateJun 17, 1930
Filing dateDec 20, 1924
Priority dateDec 20, 1924
Publication numberUS 1764676 A, US 1764676A, US-A-1764676, US1764676 A, US1764676A
InventorsCampbell Samuel J
Original AssigneeCampbell Samuel J
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Creping machine
US 1764676 A
Abstract  available in
Images(6)
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Claims  available in
Description  (OCR text may contain errors)

June 17, 1930. 5. J. CAMPBELL 1,764,676

' CREPING MACHINE Filed Dec. 20, 1924 6 Sheets-Sheet l June 17, 1930;

S J. CAMPBELL CREPING MACHINE Filed Dec. 20, 1924 6 Sheets-Sheet 2 IN V EN TOR.

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June 17, 1930. 5. J. CAMPBELL CREPING MACHINE Filed Dec. 20, 1924 6 Sheets-Sheet s A TTORNEYSf June 17, 1930. s. J. CAMPBELL 1,764,676

* CREPING MACHINE Filed Dec. 20, 1924 6 Sheets-Sheet 4 Fij.8. /03 1/7 "J INVENTOR.

ATTORNEYS,

di wafW Q 54W June 17, 1930; J, CAMPBELL 1,764,676

GREPING MACHINE Filed Dec. 20, l924 6 sheets sheet 5 I N VEN TOR.

A TTORNEYS.

June 17, 1930.

5 J. CAMPBELL CREPING' MACHINE Filed Dec. 20, 1924 6 Sheets-Sheet 6 A TTORNE Y5 Patented June 17, 1930 UNITED STATES SAMUEL J. CAMPBELL, OF GREEN BAY, WISCONSIN CREPING MACHINE This invention relates to improvements in methods of, and machines for, creping pliable materials. r

A primary object of this invention is to provide an improved method of creping paper and other pliable materials in either a dry or a moist condition and of producing in one operation stripes in the product having differing characteristics due to a difference in themode of handling the material along zones or longitudinal sub-divisions of the strip of paper which is being creped. The improved method and the apparatus employed is particularly adapted for the crepmg of paper but it may also be employed for creping other substances, such as cloth or metallic foil. j

Heretofore, flexible material, such as cloth, paper, and the like, has been fed between intermeshing gears or equivalent devices for pressing or folding it in opposite directions to an extent determined by the size of the interact ing parts or teeth, The product of such machines issometimes referred to as creped, but in modern practice the so-called creped paper has been more commonly produced by feeding moist paper over a roller to which it adheres and then stripping it from the roller by means of a so-called doctor plate, the edge or edges of which are so formed that when the paper is carried against it by the roller it is crinkled and offset in a series of narrow ridges or folds more or less irregular in form and produces the product commercially known as creped paper. The, friction of the moist paper upon the doctor plate, and particularly upon doctor plates having uneven or corrugated surfaces, is the principle agent in the development of the crinkles or folds in the paper and therefore the operation becomes a delicate one, not only in the degree of moisture, but in the form and position of the plate, to avoid tearing the paper and to produce the'precise effect desired for the finished product. Considerable waste frequently results due to tearing and improper crinkllng and with many materials, such as metallic foil impervious to moisture and not sufliciently adhesive to a roller, it is impos Application filed December 20, 1924. Serial No. 757,232.

'sible to obtain the desired creping efiects by such methods.

The present invention is based upon the discovery of a new method whereby the above difficulties and disadvantages maynot only be overcome but in the practice of which simple apparatus may be employed which operates upon a new principle and is capable of creping any material, whether wet or dry, and o producing a superior product or a variety of products in which different zones or stripes may' be reduced with corrugations or crinkles of difl'ering character and different designs may be produced in color, character or contour.

13 am. aware that creped paper provided with designs in color has been produced by employing colored paper or paper having colored designs imprinted thereon preparatory to the creping operation; Attempts have also been made to color creped paper or to imprint designs thereon in color by operation of a press. Neither of these methods has proven very satisfactory and it is a further object of my invention to provide means whereby a plurality of strips ofpaper of differing colors and marginal contours may be superposed and interfolded during the creping operation in such a manner as to interlock the superposed sheets and impose upon one of the sheets serving as a backgroundanother sheet having'the desired color designs and contours, the product having the appearance of a single sheet of paper with designs in difi'ering colors. 7

Further objects of this invention are to provide means for utilizing yielding frictional surfaces in a narrow passage to facilitate the creping operation; to provide means whereby the creping elements may automatically'assume an initial position for starting the creping operation and then yieldingly assume another position in which the creping operation may be continuously carried on; to provide im roved means for .feeding material into suc passages; to provide mecha nism capable of being nicely ad'u'sted to produce precise effects in the 'finis ed product; to provide means for subjecting the material during the creping operation to frictional portion thereof being cut away in vertical section to expose mechanism which would otherwise be concealed.

Figure 2 1s a plan view of the mechanlsm shown in Figure 1.

Figure 3 is a sectional view of the creping rollers and associated parts, drawn on line 33 of Figure 2 and illustrating the creping operation.

Figure 4 is a fragmentary view, partly in elevation and partly in section, showing the end portion of one of the creping rollers, finger bar and fingers, with associated bearing and adjustable mounting.

Figure 6 is a perspective view showing the lower end portions of two modified creping fingers adapted for use in either of the machines shown in Figures 1 to 4, inclusive, or in Figures 8 to 11, inclusive.

Figure 7 is a fragmentary View of one of the creping rollers, showing a modified arrangement of the creping fingers whereby a variation in the design of the product may be attained.

Figure 8 is' a plan view of a preferred embodiment of my invention, with parts broken away.

Figures 9 and 10 are sectional views drawn respectively on lines 99 and 1010 of F igure 8.

Figure 11 is a fragmentary view, showing inner face portions of one of the finger bars shown in Figu res 8, 9 and 10, with fragments of associated fingers.

Figure 12 is a detail sectional view on line l212 of Figure 11.

Figure 13'is a perspective view of a further modification, in which a single annularly grooved feed roller and associated creping fingers is co-operatively assembled with an opposed creping plate.

Figures 14 and 15 are illustrations of fragments of creped paper produced by the machine.

Figure 16 is a view of the fragment of the product shown in Figure 14 when partially distended.

Like parts are identified bythe same reference characters throughout the several views;

The improved method may be described as follows:

A strip of pliable material is pushed through a narrow passage between two opposing walls which are sufliciently separated to allow the materialto fold upon itself in projections of more or less irregular ing operation to continue.

a series of crinkles, folds or zig-zag angular orm, said walls being in such proximity to each other and capable of suflicient frictional detention of the material to cause the material to fold or deflect alternately in opposite directions from a point or line of frictional contact with the other. The strip is in the meantime continuously fed into the space between said walls so as to cause a compressing or packing operation whereby the material will be delivered from between the walls in a crinkled or creped condition. By initially causing the walls to converge toward the point of delivery the crinkling and packing operation can be initiated, after which the walls may be allowed to assume a parallel position, the friction of the material upon the walls being then suflicient to allow the pack- By varying the character or proximity of portions of the wall surfaces and by alternating moving surfaceswith stationary surfaces along lines parallel to the plane in which the material travels, longiudinal strips may be produced in the finished product due to the fact, that the material in one zone or stripe has been differently crinkled from that in another zone or stripe. Auxiliary to the method above described, superposed or contiguous strips of paper of differing widths or marginal contours and of contrasting colors may be fed between the walls in such a manner as to not only simultaneously crinkle the strips but to interfold them in interlocking relation, whereby the product may have the appearance of a single strip of creped paper but with the contours, designs and colors of one strip imposed upon theother strip along one face thereof, the wider strip serving as a background for the designs and 'colors of the narrower strip.

I have discovered that when a strip of flexible material, (which may be slightly damp.- ened or prefectly dry), is forced edgewise into a narrow passage, the walls of which are wholly or partially stationary relatively to the moving paper or material, the movement of the latter will be retarded and the material deflected by frictional contact first with one of said walls and then with the other, such frictional contact being suflicient to cause the material travels sufiiciently to allow the folds to accumulate and develop additional frictional resistance, the crinkled or folded material may be packed within said passage and compressed therein sufficiently to cause it to retain the creped or crinkled condition after passing from between the platesi. e.'after being delivered from the creping passage or receptacle.

I have also discovered that an increase in the frictional characteristic of the opposing wall surfaces compensates largely for an increase in the width of the creping receptacle. Smooth walls may be employed to roduce the usual degrees of crepe. By ad usting the walls so as toincrease their proximity, the undulations are shorter and sharper but less prominent crinkles are produced than those found in the product where the walls are more widely separated. Also by causing certain portions of the walls to have a relative travel in the same direction that the material moves, lines of fold may be produced which curve and interlace to a greater or less extent according to the Width of the traveling strips or wall members and the relatively stationary portions.

Apparatus for carrying out my method may be constructed in a great variety of forms, some-of which are shown in the drawings and will now be described.

In the construction shown in Figures 1 to 4,

.' inclusive, the material A, which may be assumed to be a strip of paper, is drawn by a pair of feed rollers 16 and 17 from a supply roller 18, the strip of paper passing from the supply roller over the idle guide rollers 19 and 20 and then downwardly in a substantially vertical direction between the peripheral strip engaging surfaces of the feed rollers 16 and 17. The roller 18 has suitable end trunnions 24 journalled in frame brackets 25. -The guide rollers 19 and 20 have their supporting shafts similarly journalled in frame brackets 26 and 27 respectively. The axes of all of these rollers are of course parallel or substantially so.

The feed rollers 16 and 17 are respectively supported by shafts 34 and 35 and the shaft 34 is journalled in eccentric bushings 36 which may be rotatively adjusted in the frame bearings 37, the latter being divided hori- 16 and 17 may be increased or diminished in accordance with the requirements, either at the time of the initial assembly of the ma- .chine parts or from time to tlme in accordance with the requirements for materials of differing thickness and pliability.'

Power is applied to the drive shaft 40 through a pulley 41 and is transmitted to the feed rollers-through the pinion 42 and a gear wheel 43, fast on the shaft 34, which in turn transmitspower to the shaft 35 through the intermeshing gear wheels 44 and 45 fixed to the respective shafts. These last mentioned gear wheels 44 and 45 are of the same diameter and therefore the shafts 34 and 35 will rotate at like speeds and the rollers 16 and 17 are adapted to act as feed rollers between which the web or strip of material may be engaged along a line of bite to draw the material from the roller 18 and impel it longitudinally into the passage mentioned in the foregoing description of the improved method and clearly indicated in Figure 3, corresponding passages being also illustrated in Figures 6, '9 and 12 as embodied in the modified forms of construction hereinafter to be described.

-' When referring to the line of bite between the feed rollers 16 and 17, it is not intended to imply that this line of bite is necessarily continuous. Referring to Figure 2, it will be seen that each of these rollers 16 and 17 is provided with annular grooves 46 in its periphery, the grooves in one roller registering with those in the other and in each roller the grooves are of substantially the same width or of slightly greater width than the intermediate portions. The web or strip of paper A is gripped between these intermediate portions or annular ribs 47, whereas the grooves are adapted to receive downwardly extending converging creping fingers 50 which in their lower end portions have curved outer surfaces 51 concentric with the bases of the grooves in whichthey are received and parallel vertically extending inner surfaces 53 between which the web of material A is fed by the contacting portions of the rollers-i. e.by the annular ribs 47. The vertically extending surfaces 53 constitute the opposing walls of the passage above referred to within which the creping operation is performed.

The creping fingers 50 have their upper 1 ends connected with mountings, each having the general form of a longitudinally extend the bracket cross bars 56. to which the channel bars are secured by bolts or screws 60. Set screws 61 are employed to hold the channel bars rigidly against the front forks of their supporting brackets 56 and suitable shims .67 may be introduced to facilitate an accurate positioning of the channel bar'59 and its associated creping fingers 50.

Each of the channel bars is provided with arms '62 connected therewith by bolts 62. These arms project outwardly and support weights 63, one for each channel bar 59. The arms 62 pass through suitable apertures near the respective ends of the cylindrical weight 63, thereby providing for an adjustment of the weight inwardly or outwardly upon its supporting arms 62. Set screws 63 are employed to secure the weights to the arms 62 when properly adjusted. The weights 63 tend to swing the channel bar 59 and its supporting brackets 56 bodily about the sleeves 55 upon which the brackets are respectively mounted and in a direction to swing the lower ends of the creping fingers toward those of the other set associated with the opposing feed roller. The channel bars are preferably provided with ribs 65 which enter suitable notches or recesses 66 in the associated creping fingers 50, whereby the fingers may be supported by these ribs and longitudinally adjusted along the channel bar to which they are also secured by bolts 64.

The swinging movement of the creping finger mountings (brackets 56 and channel bars 59) is regulated and limited as follows:

The bearing caps 37 at the respective sides of the machine are connected by a spanner plate 68 which may conveniently be utilized to carry brackets 27 forthe support of the idle guide roller 20. The, brackets 56 have suitable projecting ears 73 and 73 extending inwardly from the inner and outer fork arms of the respective brackets. Stop screws 70 extend through the ears 73 and have threaded bearings therein whereby they may be adjusted in a position to engage the upper surface of the spanner plate 68 and limit the tilting movement of the associated bracket in the direction of, the opposing bracket and feed roller. Similar stop screws 71 have threaded hearings in the ears 7 3' and are also adapted to engage the upper surface of the associated spanner plate 68 near its outer margin to limit the tilting movement of the associated brackets in the direction in which such brackets are urged by the weight 63. The stop screws 70 and 71 are adjusted to allow a limited tilting movement of the brackets, the associated channel bars 59, and creping fingers 50.

The weights 63 tend to hold the brackets in a position with set screws 71 in engagement with the associated spanner plates 68, in which positions the surfaces 53 of the opposing creping walls converge downwardly in a manner to initiate the crimping and packing operation. But during the creping operation the pressure of the creped paper against the opposing surfaces 53 of the respective sets of creping fingers 50 will be suflicient to overcome the pull of the properly adjusted counter-balancing wei hts 63 and separate the surfaces 53 sufiicient y to allow the convolutions or folds of the creped paper to be packed in the space or passage between the lower ends of the creping fingers. In referring to the surfaces 53 as substantially parallel, it will be understood that these surfaces are substantially parallel when subjected to the pressure developed in the operation of packing the creped paper between-them.

The weights 63 are so adjusted as to tend to maintain the lower extremities of the creping finger sets in their initial position.- In such position the opposed sets of creping fingers form an initial resistance to the passage of the web, causing it at once to commence to undulate in the manner aforesaid. The weights maintain this resistance constant and at the same time permit the brackets 56 and the sets of creping fingers supported re spectively therefrom to oscillate to the full extent which set screws 70 and 71 are adjusted to permit. As the paper crepes and becomes compacted in the receptacle or passage formed by the opposing surfaces 53 of the creping fingers, such surfaces separate to the extent permitted by the stop screw adjustment above described and become substantially parallel so that once the paper has commenced to crepe, it will feed through the receptacle Without any increase of resistance during its passage. The surfaces 53 of creping fingers 50 may be smoothly finished, such a finish being preferred where fine creping is desired and where consequently it is necessary to locate surfaces 53 of the two sets of creping fingers in close proximity.

The effect of the mechanism above described is very clearly indicated in Figure 14 which represents a web as it appears after passing through the machine. The portions 75 of the web which have been directly acted upon by the surfaces 53 of fingers 50 are crinkled or creped into coarse convolutions, whereas the portion 76 of the web intermediate portions 75 thereof have been acted upon only by the feed rollers and have not been directly subjected to the action of the creping fingers. These intermediate portions 76 will be more finely folded as indicated in Figures 14 and 16, and the broad convolutions at 75 will merge with the creping which occurs at 76 to produce a novel and pleasing striped effect which has only heretofore been approached by paper which has been water marked elther before or after the creping operation.

Obviously the appearance of the product of the mechanism herein disclosed may be varied within wide limits by varying the spacing of fingers 50 to arrange them in pairs or in triplicate or in any other pattern which may appeal to the trader Figure 7 illustrates a set of fingers in which the individual fingers are so spaced as to associate them in pairs and in series of threes. The sets associated with each channel bar may be so arranged throughout, or the arrangement may be varied as desired tolany extent permitted by the roller channe s.

I have found that the character of the creplng produced by this machine may be varied w thin Wide limits by varying the space between surfaces 53 of the crepingfingers. Qbviously the distance between such surfaces may be varied at will by adjusting set screws.70 and 71 on each of the brackets carrying the sets of fingers, in which case any deviation from the normal approximate parallelism of surfaces 53 which may result from altering the bracket positions may be compensated for by introducing or removing shims at 67. The shims may also be used to adjust the fingers individually to roduce varying patterns of crepe as desire It has already been indicated above that when the surfaces 53 are closely adjacent (as compared, of course, with the thickness of the web which is being fed therethrough) a fine creping will result. If the surfaces 53 are more widel separated in proportion to the thickness of the web a comparatively coarse creping will result. If the fingers O are so adjusted that their surfaces comprising the receptacle through which the web is forced are relatively very far apart, it may become desirable as indicated in Figure 6 to abrade the surfaces 53 of the opposed fingers which comprise the receptacle or passage. Thereby the retarding efiect of portions 53' of such fingers is increased as compared with the retarding effect which is possible where smooth surfaces are employed as at 53.

In Figures 8,9, 10 and 11 I have illustrated a preferred embodiment of the invention in which the general organization and principle of operation is the same as above described with reference to Figures 1 to 4, inclusive, but

with structural features incorporated in the machine to facilitate various adjustments whereby the machine may be readily and accurately adjusted to suit the requirements of any given creping operation. In the machine illustrated in Figures 8 to 11, inclusive, the creping fingers are formed of resilient material whereby each individual finger is adapted to yield under the pressure of the the webs.

paper, although supported from a rigid mounting. This makes it possible to employ a mounting in the form of an adjustable slide 90 movable along the upper surface of the frame and secured thereto by clamping bolts 91 which pass through slots 92 in the slide to engage the frame and clamp the slide thereto. These slides 90 have at their respective ends upwardly extending webs 93 through which threaded adjusting rods 94 may pass, the rods 94 having threaded portions 95 at their inner ends which are screwed into suitable sockets in the frame members 96 at the respective sides'of the machine. Collars 98 are secured on the rods 94 upon opposite sides of the webs 93, whereby the adjusting rods are swiveled to squared, as indicated at 99, whereby a crank or wrench may be applied to rotate the rods and thereby move the webs 93 and the associated slides 90 inwardly or outwardly along the finger bars 50".

The outer ends of the rods are the frame to an extent permitted by the slots 92. Each of the slides 90 is provided at the inner end of its associated web 93 with a bracket plate 100 having projecting ears 101 each provided with an arcuate slot 102: A

head may have a projecting arm 109 extending between the ears and actuated in opposite"- directions by screws 110 threaded in suitable apertures in the ears 108 and havingtheir inner ends bearing upon the opposite sides of the projections 109. By retracting one. of

the screws and advancing the other, the cross head 103 may be rotatively adjusted and held in any desired position of adjustment by the screws 110 and the clamping bolts 106.

On the inner face of each cross head 103 a vertically movable slide 115 is mounted underneath a cross head shoulder 116. Adj usting screws 117 pass through the cross head shoulder 116 and are threaded into suitable sockets in the slide 115, whereby said slide may be raised or lowered. To facilitate this adjustment from the sides of the machine, hand wheels 118 are employed. These hand wheels are fixed to the shafts 119 uponone of which the idle guide roller 20 is loosely mounted. Motion may therefore be transmitted from either hand wheel through its associated shaft 119, beveled gear wheels 121 fixed thereon, and beveled gear wheels 122, each secured to one of the adjusting screws 117, thereb raising or lowering the vertically movable slide 115.

The vertically movablev slide 115 supports U finger bars are bolted to a plate 130 which is The upper ends of the secured to the slide by screws 131. The'lower portion of this plate is thickened at 132 and is provided with channels to receive the finger bars. Clamping bolts 133 pass through the plate between the finger bars and are provided with wedge shaped heads 134 which engage in V-shaped recesses formed in the thickened portions of the plate and in the marginal portions of the finger bars, as clearly shown-in Figure 12. The feed rollers 16 and 17', together with their mountings, are

the same as those disclosed in Figuresl to'4 and therefore the same reference characters are applied to these parts.

With the above described construction it is obvious that by loosening the clamping bolts 12$ 91 andturning the adjusting screw rods 94,

the slides 90 may be caused to approach or recede from each other and thereby vary the dlsta-nce between the surfaces 53 of the sets ment is secured by turning the hand wheels 118 to raise or lower the vertical slides 115, thereby moving the creping passage or receptacle upwardly or downwardly into greater or less proximity to the line of feed roller contact with the materiali. e. to the socalled line of bite. The desired relative initial convergence between the surfaces .53 of the creping fingers is obtained by rotatively adjusting the cross heads 103 upon their supporting bracket plates 1.00. All of these adjustments are possible from the sides of the machine and by means of the adjusting screws it is obvious thatvery accurate results may be attained. The fingers themselves are resiliently yieldable whereby their opposing surfaces may assume substantial parallelism under pressure resulting from the, creping and packing operations.

Referring to Figure 13, it will be observed that a single feed roller 17 is associated with a set of creping fingers 50 which may be supported in any convenient manner such, for example; as the means disclosed in Figure 3 or the means disclosed in Figure 9. But instead of employing a companion feed roller, such as the roller 16 in Figures 3 and 9, a creping plate 140 may be employed. This plate may be continuous along the working area of the roller 17 and may be provided with a shoulder at 141 substantially coinciding with the line of bite or pressure contact with the material fed between it and the roller 17 Below this shoulder a creping wall 142 depends, the inner surface of this wall being spaced from the surfaces 53 of the creping fingers associated with the roller 17, thereby forming av receptacle or passage within which the creped material may be packed or pressed. It is not material whether the wall 142 is continuous or whether it comprises a series of fingers similar to the lower ends of'the fingers 50. The contour of the inner face of the wall 142, whether continuous or interrupted, flat or ribbed, will of course affect the appearance of the product but will not otherwise affect the mode of operation of the machine.

Where it is desired to impress upon a surface of the creped paper any suitable design in contour or color, I employ an additional supply roller as indicated at 144 in Figure 1. A strip A of colored or specially contoured paper may be drawn from this roller over the idle rollers 19 and 20 and fed into the creping receptacle with the strip A whereupon both strips will be creped simultaneously and interfolded in the creping operation so intimately that both strips or sheets will be held together as one strip or sheet of paper, although they can readily be pulled apart if desired. In this manner results can be secured as indicated in Figures 14 and 15, wherein Figure 14 illustrates the product of the machine shown in Figure 1 (or 9) with a single strip of paper drawn from feed roller 18, whereas Figure 15 illustrates the product of the same machine or machines with an additional strip of paper of less width and of contrasting collar drawn from an auxiliary feed roller 144. s

, The crepe paper produced in the manner above described is highlyelastic and may be considerably distended. without materially affecting its appearance except as to a widening of the corrugations or crinkles. The folds or reverse bends in the strip or sheet of creped material will ordinarily be sharp due to the pressure exerted upon the material in the passage during the packing operation.

It will of course be understood that the means for advancing the web or strip of material and the walls of the creping receptacle or passage must be located in close proximity whereby the material will be delivered immediately and directly from the feeding means into the passage in order that the folding material will necessarily be brought into contact with the passage. It is also necessary to the packing operation that the feeding means be located at the top of the passage or receptacle and in such proximity thereto that paper or other material fed edgewise intothe passage may be packed therein with sufficient pressure to fix the convolutionsor folds in permanent form. After the creping operation has been properly commenced, the folding will of course take place immediately below the feeding line or line of bite.

It will also be understood that the depth of creping, viz :the thickness of the creped material, will be determined by the distance between the surfaces of the passage or receptacle, inasmuch as the material will contact first with one wall and then with the opposing wall while it is being creped, and these contacts will be maintained. during the packing operatiom It will further be understood that the creping fingers may be non-adjustably fixed in the indicated positions of parallelism. In such a case, it will be necessary for the operator manually or otherwise to ofi'eran initial resistance to the issue of the paper from the receptacle. This may be done merely by obstructing the receptacle outlet with the hand and after the creping operation has commenced and packing of the paper has resulted the creping will continue indefinitely.

I claim:

1. In a device of the character described, a plurality of yieldable fingers in spaced relation, and means opposed to said fingers to provide opposed surfaces having interposed spaces for crinkling pliable material.

2. In a device of the character described, a plurality of fingers in spaced relation, and means opposed to said fingers to provide opposed surfaces having interposed spaces for crinkling pliable material, said fingers being supported for oscillation automatically toward or away fromsaid means as the-pressure of material between the fingers increases or diminishes, whereby to provide alternatively converging or substantially parallel surfaces.

3. Ina device of the character described, a plurality of fingers in spaced relation, and means opposed to said fingers to provide opposed surfaces having interposed. spaces for creping fingers arranged in sets and each spaced from adjacent fingers, said sets being yieldably opposed to each other thereby to provide cooperating substantially parallel surfaces and spaces between adjacent fingers of each set, whereby paper sheets may be crinkled coarsely in certain portions and finely in other portions.

6. In a device of the character described,

. creping fingers arranged in sets and each spaced from adjacent fingers, said sets being yieldably opposedto each other and supported for relative movement toward or away from each other.

7. In a device of the character described, creping fingers arranged in sets and each spaced from adjacent fingers, said sets being opposed to each other and supported for relatively yieldable oscillatory movement, whereby to provide alternately converging or substantially parallel surfaces.

8. In a device of the character described, a bracket yieldably pivotally mounted for oscillation,-a plurality of fingers supported by said bracket in spaced relation to adjacent fingers, and means opposed to said fingers to provide opposed surfaces having interposed spaces.

9. In a device of the character described,

brackets pivotallycmounted for oscillation laterally of each other, and a plurality of fingers in spaced relation to adjacent fingers and supported by each bracket, the fingers supported by one of said brackets being each opposed to a finger supported by the other of said brackets, whereby opposed surfaces are arranged in sets having interposed spaces between each set.

10. In a device of the character described, the combination with means for advancing a web of material to be creped, of members arranged in pairs spaced from each other and automatically yieldable relative to each other, the members of said pairs being positioned on opposite sides of said path-of advance wherew by to act upon registering portions of said materlal with a limited retarding action whereby the portions between the members I of each pair will be coarsely creped and the intermediate portions more finely creped.

11. In a device of the character described,

the combination with a set of web advancing rolls, of a receptacle disposed in the path of web advance beyond said rolls and comprising closely spaced opposing members each of which is resiliently yieldably mounted for automatic oscillation between relative positions of substantial parallelism and relative positions in which said members converge in the direction of web advance. v j I 12. In a device of the character described, the combination with a set of web advancing rolls, of a receptacle disposed in the path of web advance beyond said rollsand comprising closely spaced opposing members each of which 'is mounted for automatic oscillation between relative positions of substantial parallelism and relative positions in which said members converge in the direction of web advance together with resiliently yieldable means normally urging said members toward said last mentioned'position.

' gether with stops adjustably limiting the oscillation of said members.

14. In a device of the character described, the combination with opposing creping fing'ers arranged in sets, the fingers of each set having operating surfaces normally in substantial parallelism with the operating surfaces of the other set and a bracket associated with each set and supporting it operatively for oscillation in a direction adapted to render said surfaces mutually convergent.

15. In a device of the character described, the combination with opposing creping fingers arranged in sets, the fingers of each set having operating surfaces normally in sub- I stantial parallelism with the operating surfaces of the other set and a bracket associated with each set and supporting it operatively for oscillation in a direction adapted to render said surfaces mutuallyconvergent, a plurality of fingers being independently adjustable in one of said sets.

16. In a device of the character described, the combination with web advancing rolls, of brackets oscillatory substantially co-axially with said rolls, and opposing creping fingers connected with said brackets extending therefrom beyond the line of bite of said rolls, said rolls being peripherally grooved to receive said fingers. V

17 In a device of the character described, the combination with web advancing rolls, of bracket-s oscillatory substantially co-axially with said rolls, and opposing creping fingers connected with said brackets extending therefrom beyond the line of bite of said rolls, said rolls being peripherally grooved to receive said fingers, together with means normally exerting pressure to oscillate said brackets and creping fingers in a direction tending to render said fingers convergent in the direction of web advance between said rolls.

18. In a device of the character described, the combination with web advancing rolls, of brackets oscillatory substantially co-axially with said rolls, and opposing creping fingers connected with said brackets extending therefrom beyond the line of bite of said rolls, said rolls being peripherally grooved to receive said fingers, together with means normally exerting pressure to oscillate said brackets and creping fingers in a direction tending to render said fingers convergent in the direction of web advance between said rolls, and means for limiting the oscillation of said bracketsand fingers.

19. The combination with a peripherally grooved web advancing roll and fingers proecting tangentially throu h the grooves of said roll in a direction of web advance, of means opposed to said roll and co-operating therewith to hold the web in peripheral contact with ungrooved portions thereof, and means opposed to said fingers and co-operating therewith whereby to provide a receptacle beyond said roll in the direction of web advance presenting opposing surfaces closely adjacent to the web, a plurality of said fingers being yieldably adjustable between positions of substantial parallelism with said last mentioned means and positions of convergence with reference thereto.

'20. The combination with a peripherally grooved web advancing roll and fingers projecting tangentially through the grooves of said roll in a direction of web advance, of means opposed to said roll and co-operating therewith to hold the web in peripheral contact with ungrooved portions thereof, and means opposed to said fingers and oo-operating therewith whereby to provide a receptacle beyond said roll in the direction of web advance presenting opposing surfaces closely adjacent to" the web, a plurality of said fingers being yieldably adjustable between positions of substantial parallelism with said last mentioned means and positions of convergence with reference thereto, and means pressing said adjustable fingers toward the said last mentioned position of convergence.

21. In a device of the character described,

the combination with peripherally grooved web advancing rolls with brackets oscillatory substantially co-axially with said rolls, supporting members carried by said brackets and each in substantial parallelism with one of said rolls, means for limiting the oscillation of said brackets and supporting members, fingers connected with said members and projected in sets through the grooves of said rolls and beyond the line of bite thereof, said fingers being provided with opposing surfaces beyond the line of bite of said rolls in a direction of web advance therethrough, an arm connected with each of said members and projecting away from said fingers, a weight adjustable upon each of said arms whereby to exert a pressure tending to render said fingers convergent.

22. In a device of the character described, a bracket and a plurality of fingers removably and adj ustably secured to said bracket, whereby said fingers may be replaced or adjusted laterally of adjacent fingers.

23. In a device of the character described, a bracket having a pair of ribs, 2, finger having notches adapted to receive said ribs, and means for securing said finger to said bracket, whereby said ribs will maintain said finger in proper alignment relative to said bracket.

24. In a-device of the character described, a bracket having a pair of ribs of substantial length, fingers each having'notches adapted to receive said ribs, and means for securing said fingers independently to said bracket, whereby said fingers may be maintained in proper relative alignment.

25. In a device of the character described, the combination with a set of web advancing rolls, each roll having peripheral grooves, of yieldable creping fingers each extending downwardly through one of said grooves and be ygond the line of bite of said rolls upon the we 26. In a device of the character described, the combination with a set of web advancing rolls each roll having peripheral grooves, of yieldable creping fingers each extending downwardly through one of said grooves and opposed to the advance of said web beyond the line of bite of said rolls.

27. In a device of the character described, sets of fingers, the fingers of each set being spaced relative to each other and said sets being arranged in opposed yieldable relation.

28. In a device of the character described, the combination with a set of web advancing rolls, each roll having peripheral grooves, of yieldable creping fingers arranged in sets, the fingers of one set being positioned in the grooves of one of the rolls and the fingers of the other set being positioned in the grooves of the other of the rolls, whereby to oppose the advance of said web.

29. The combination with feed rolls, of a crefiing receptacle comprising closely spaced wa members positioned immediately adjacent said rolls and at ogrpgosite sides of the path of material issuing m said rolls and yieldable resiliently from said path under pressure of such material.

30. The combination with feed rolls, of a creping receptacle comprising closely spaced wall members normally converging toward the path of material issuing from said rolls at opposite sides thereof and yieldable from said path, to ther with stops adjustable to limit the yie din movement aforesaid.

SAfi'UEL J. CAMPBELL.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3017317 *Feb 12, 1957Jan 16, 1962Kimberly Clark CoMethod of creping tissue and product thereof
US3163575 *Feb 26, 1962Dec 29, 1964Kimberly Clark CoDoctor blade for differentially creping sheets from a drum
US4090385 *Jan 26, 1977May 23, 1978Bird Machine Company, Inc.Material treating apparatus
US4859169 *Dec 23, 1987Aug 22, 1989Richard R. WaltonWeb processing by longitudinal compression using matched drive disks and retarding fingers
US4921643 *Jun 24, 1988May 1, 1990Richard R. WaltonWeb processing with two mated rolls
US6042693 *Apr 30, 1999Mar 28, 2000Fort James CorporationExtended life doctor blade and method of forming the same
US6074526 *Aug 18, 1997Jun 13, 2000Fort James CorporationDoctor blade having an extended wear surface in contact with the rotating drum of the papermaking machine.
US6113470 *Apr 30, 1999Sep 5, 2000Fort James CorporationMethod of forming a creping member
EP0268304A2 *Nov 20, 1987May 25, 1988R. Richard WaltonMachines and method for web processing by longitudinal compression
Classifications
U.S. Classification162/281
International ClassificationB31F1/00, B31F1/12
Cooperative ClassificationB31F1/12
European ClassificationB31F1/12