US1775087A - Cementing machine - Google Patents

Description

Sept. 9, .1930. J. w. CQSGROVE CEMENTING CHINE 3 Sheets-Sheet l I Filed Dec. 10, 1926 Se t. 9, 1930. J. w. cOsGRovE CEMENTING' CHINE 3 Sheets-Sheet 2 Filed Dec. 10. 1926' S p 1930 J. w. COSGROVE GEMENTING momma Filed Dec. 10, 1926 3 Sheets-Sheet 3 Fig.4

Patented Sept. 9, 1930 g i uirsn STATES PATENT OFFICE JOHN W. COSGROVE, OF MED FORD, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MA- CHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY CEMENTIN G MACHINE This invention relates to cementing machines and is illustrated in its application to a machine for cementing'shoe parts to which a French bindingstrip'has been ap- 5 plied. It will be understood, however, that the'invention may be applied to machines for other kinds of work and the general object of the invention is to provide an improved cementing machine capable of han- 1O dling work eflici'ently and with a minimum of skill upon the part of the operator.

Cementing machines have a wide application in applying a coating to various forms of shoe parts, but the type of machine under consideration is designed particularly for the application of a narrow stripe of cement adjacent to the edges of such parts. Machines for this purpose are commonly provided with co-operating superposed rolls either one orb'oth of which are arranged to apply cement, and the arrangement is generally such that the rolls may be separated to allow the introduction'of pieces of work therebetween, operator-controlled means being provided to govern the separation and approach of the rolls. Inthe illustrated machine, in accordance with an important feature of the invention, the shaft of the upper roll is carried in a bracketpivotally attached to the frame of the machine at a point remote from the rolls, a spring being provided to' hold up the bracket so that the rolls are normally separated, and an operator-controlled lever is arranged to bear against this bracket to bring the rolls into contacting relation with the work. I In order that it may not be necessary for the operator to release the treadle to allow momentary abnormal separation of the rolls as, for example, when 40 a thickened place in the work,'such as would be caused by a seam, passes between the rolls,"

a spring is interposed between the lever and the roll-carrying bracket. 1

The lower roll of the illustrated machine 1s supplied with cement from a trough, shaped like an outstretchedcylindrical arm, on the frame of the machine and the roll dips in the cement and projects'through an opening atthe upper side of said trough. To

control'thequantity of cement taken up by the lower roll, and in accordance with other features of the invention, a compact and readily adjustable doctor has been mounted upon the trough so that one edge of the doctor co-operates with the upgoing side of the lower roll. In the illustrated construction the trough is provided with a curved outer surface adjacent to the upgoing side of the roll, and the doctor comprises a curved plate closely fitting over this surface and having its upper edge arranged to control the amount of cement taken up by the roll. The adjustment of this doctor plate is facilitated by mounting it upon an arm pivoted about a point eccentric to the center of the roll.

For French binding, strips of material usually of fabric are attached, as by stitchmg, to the edge of a vamp, quarter, or other shoe part, in flat contact therewith. With the work in this condition, cement may be applied to either one or both of the external surfaces of the strip and shoe part,prior to the time when the stripis folded over the edge and stuck'down upon the inside of the shoe part, thereby to conceal the edge of the leather of said part. It will be understood that the proper handling of work to which a French binding strip has been attached requires that the attached strip shall lie flat upon the work when it is introduced between the rolls of the cementing machine: Accord ingly, the introduction of work to the rolls is facilitated in the illustrated machine by the provision, in accordance with still other features of the inventiomof a forked guide adjacent to the intake of the rolls having a flared entrance provided by an upturned end upon the upper arm of the fork and a depending apron secured to the lower arm of the-fork- The arrangement is such that the work cannot be fed through the rolls in a straight line but the upper arm of the fork must drag over the fabric strip to smooth it out. 7

These and other features ofthe invention will now be set forth in detail With reference to the accompanying drawings, in which broken away, showing the cementing. rolls and associated parts;

Fig. 3 is a fragmentary perspective View of the rolls from the front corner of the machine; v

Fig. 4 is an end elevation of the machine,

Fig.5 is afragmentary end view, on a larger scale, broken away to show a section through the rolls and the'gage; and

Fig. 6 is aperspective view of a small section of a shoe part to which a binding strip has been stitched, showing the binding strip in its original position and in its final folded position.

merely as a worlesupporting or pressing rollwhile cementls supplied to the co-operating roll. The lower roll 10 dips in a barrel-v shaped trough 14 constructed as an outstretched arm rigidly attached to a base 16 and supplied barometrically with cement from an inverted receptacle 18 detachably secured to" a lateral extension 20 of said trough. TlllS arrangement of an outwardly e-Xtending barrel-shaped trough facilitates the use,

ofthe machine for parts, suchv as closed Vamps, to which it'is desired to apply cement, for example around the inner edge of the vamp. A pivoted cover 24 is provided upon the lower side of the extension20, which is detachably held in place by means of a wing.

nut 26 so that the trough may be drained and cleaned of cement when desired. It will be understood that bearings are provided within the trough fora shaft 30 upon which the;

lower roll 10 is mounted, this'shaft being eXtended-throughthe frame of the machineto support fast and" loose pulleys 32 and 34.-

I A belt shifter 36 is slidably mounted upona 44 and a latch=45 actuatedby means of a. spring 46 to hold the shifterin either of its.

mined by, the nuts 84 secured to the-fotherend 5O square rod 38bolted'to abracket 40 secured on the base 16. :Thisfbelt'shifter comprises a curved fol-1:42 of usualtype, afingerpiece operative positions. I y 1 i r I. ,7 v If cement-is to be applied by the lower roll 10 alone, then it is essential that the upper roll 12 be kept clean. Accordingly, the machine is'arranged so that the rolls are normally" separated by a spring 60 to be later described.

To this end, the upper roll 12 is mounted upon a shaft 50 journaledin a long bracket 52piv; otally attached at 54 to theframe ofvthe machine so that the upper roll 12 may be moved toward and away from the lower roll 10."

' frame'of the machine,

tivelyij It will be noted that the pivotal'point of the bracket 52 is remote from the rolls and is adjacent 'ee so. that the slight movementof the separatio'nand approach of the upper roll 12 does not disturb the cooperation of the gears. A spring 60, supported in a recess formed in a lug 61 (Fig. 2) on-the frame and interposed between that lug and a lug 63 on thebracket arm 52, is arranged to able even when the machine is used as a double cementer with both rolls 'usedas applying rolls because it has been found" that there is a tendency then, in case the'rollsare'al- 7 lowed to remain in contact with one another, 7 g without feeding work to the machine, for the The machine herein illustrated is a double upper roll to take cement from the lower roll and carry it to theupper reservoir -90 until the latter is filled to overflowing.

.soy

In order that the rolls may be'brought into co-operative relation with the opposite sides of a piece of work, operator-controlled means, such as alever62, 1s providedfor,depressmg the roll-carrying bracket 52 against the. tension of the spring 60. This lever ispivotally mounted between upstanding fingers 64 (Fig. 1) and 66' (Fig; 2) which are also arranged to guide the vertical movements of the outer end .of the bracket arm 52. Thelever 62 is angular inshape, as viewed from above, and

is connected-at its outer end to-a treadle rod 7 68, whichisguided in a lug 70 on the rear side of the frame of the machine andis provided with stop collars 72 and 74, to limit the downward and upward movements of the I rod,respectively. spring 76 encircling the treadle rod and beanng at one end under the co-operative relation tothelwork by thedepression of the treadle rod 68. Engagement between theangularlever ,62'to which this; treadle rod is connected, and'the pivoted bracket 52 carrying the upper roll 12 and shaft 50 provided; by means'of a pl-unger 80 resiliently projected by as'pring 82 (Fig. 1) from said lever 62 a slight'amount deter of the plunger. Thu'sthe two rolls may be held resiliently in engagement with opposite sides of a piece of-workandallowed momen tarlly to separate the passage of th ckened portion of the work, such as would be caused the operatorg It will. be understood thatthe approachfofthe rolls is adjustably deterengagingthe mined by means of; a stop .86

Cement maybe supplied'tothe upper roll 12 fromareservoir having adelivery open} r by. a seam, for-example, without harmthereto and without requiringfurther attention from in'g92 (Fig. 2) controlledby'a sliding-knife edged valve 94 projecting. out through the side of the'casting of thereservoir andar- 3 ranged for actuationfby pivoted lever '96 having a slot for engagement wi'tlia pin 98' on said v lve 94. The extent of the opening movement of the valve may be determined by a screw stop 100 mounted'in said lever and arranged to engage one of a pair offorked lugs 102 at the bottom of the reservoir. These lugs are arranged to be engaged by wing nuts 104 mounted upon bolts pivoted in lateral extensions 106 upon the bracket arm 52. I Thus by closing the valve 94 the flow of cement may be prevented and the wing nuts 104 loosened to allow the removal of the upper' reservoir 90. -The flow of cement to the 'upper roll 12 is controlled by means of a member 110 adjustably mounted and held in position upon a dovetailed slide 112 by means of a'bolt 114. Thisarrangement is substantially identical with that illustrated and claimed in a pending application of J. 1V.

Cosgrove Serial No. 686,822, filed Jan. 17, 1924, for cementing machines. In common with that arrangement a scraper is provided upon the adjustable member 110 and the position of this scraper with respect to the 301112 ness and adapted to he brought into co-operative relation with the upgoing partof' the roll 10 to control the thickness of the coating of cement carried thereby. A portion 124 of the surface of the out-side of the trough 14' is curved and the doctor 1201s made to fit closely 7 against this surface as it is ad usted town-rt and aw from the roll10; The control of the position of the doctor is facilitated by supporting 1t upon an arm 126 pivotally 'mounted at 128 at the center of a plate 130' closing the end of the trough 14. This allows 1 a movement of the doctor120 along the curved surface 124 without separating it from said surface and by reason of he-factthat the center 128 of thetrough is eccentric to the center of the-roll 10, it permits the doctor 120 to be adjusted toward an d'away from the roll 10 with great zact-nes This mechanism, as just described, is thus not only efiicient in giving an exact determination of the quantity of cement car had up by theroll but, 111' addlt'ion', 1s exceptionally'compact The outer end I and out of the'way of the operator and will not interefere with the handling of such work as closed Vamps. At the same time it is so constructed that it may readily be removed for cleaning when so desired. It will be observed that the trough 14 is provided with an elevated portion 184 at the downgoing side of the roll 10 adjacent to the opening in said trough in order more effectively to prevent the overflow of unused cement which should be carried back into the trough.

The presentation of work provided with a flat French binding strip as illustrated in part of Fig. 6 is greatly facilitated by the construction and arrangement of a worl guiding member 140. It will be understood that such work comprises a piece of material such as a leather shoe part 142 to which there has been attached a narrow strip 144, usually of fabric. by means of a row of stitching 146. The work ispresented to the cementingmachine in the flat condition illustrated at the left in Fig. 6 so that a coating of cement may be applied to either one or both of the op posed surfaces along the edge of the shoe part 142 and the fabric strip 144, it being applied usually to the majority of the width of the fabric strip 144. After the cementing opera tion has been completed, the strip 144 is folded over the edge of the shoe part 142 into the position illustrated at the right inFig. 6 to make a so-called French edge, it being understood that the surface 148 of the shoe part is the grain or exoosed surface of the leather. It will be evident, therefore, that it is desirable to maintain the strip 144 in flattened condition as it is presented to the rolls 10 and 12 ofthe machine, and to this end the edge guide is forked to provide an upper arm 150 and a lower arm 152. The upper arm is curved upwardly and terminates in a hookshaped portion 154 (Fig. 3) providing a flared entrance to facilitate the introduction of work in proper position through the guide 140 and prevent its insertion between the guide and the upper roll 12. In addition, the lower arm 152 is provided with a depending apron like portion 156 over which the edge of the work is dragged, it being understood that the arrangementis such that this apron-like portion 156 fits snugly against the upper surface of the doctor 120 so that there is no opportunity for the accidental insertion of the work beneath the guide 140. As will be seen from Fig. 5, the upper arm 150 of the guide 140 is so shaped in section that its forward edge (on the right as viewed in Fig. 5) rubs down the fabric strip 144 as it is pulled through the guide so that said strip is smoothed out'prior to its presentation to the cement-applying roll 12. In addition, the relative disposition of the arms 150 and 152 is such that the work cannot possibly be fed in a horizontal plane through the guide and the rolls without touching the upper fork arm 1'50. Instead, thework is kinked by the guide softhat the forward edge of the upper arm rubs against and smooths out the fabric w thout allowing it to become folded longi- V tudinally. The guide 140 is adjustably held provides for the correct positioning of the edge guide in accordance with the width of the strip 144, and the width of the band of cement which it is desired to apply to said strip. In addition tothe edge guide 140 the machine is provided with an edge gage 164 (Fig. 2) integral with the bracket 160and' hence adjustably positioned in the'machine' beside the point of contact between the rolls and arranged toco-operate with the guide 140 in the correct positioning of the work as it I v rolls being arranged to apply cement to the passes through the machine. v Y I Havingthus described the inventlon, what I claim as new and desire to secure by Letters Patent of the United'States is: e I 1. In a cementing machine, a work-supporting roll, a cement-applying roll super-V posed over the work-supporting roll, common I means for driving said rolls, a. bracket for supporting said cement-apply1ng roll pivotally supported adjacent to the driving connection between said rolls, resilient means.

separating said rolls, a treadle-operated lever bearing upon an intermediate point in said bracket, and resilient means interposed between said lever and said bracket allowing a. slight separation of said rolls independent i of the pressure of the treadle operated lever.

' 2. In a cementing machine, a frame,:co-

operating rolls mounted upon substantially parallel driven shafts, one'of said rolls beingv arranged to apply cement to a. P1866701:- work passing between the rolls, a shaft-supporting bracket for the upper roll pivotally attached to saidframe at a point remote from the rolls, resilient means tending to separate said rolls, and an operator-controlled lever bearing againstsaid bracketarranged to presssaid upper roll into engagement witha piece of work positioned between the rolls.

3; In a cementing machine, aframe, cooperating rolls mounted upon substantially parallel shafts onefof said rolls being arrange'dto'apply cement to a piece of work passing between'the rolls, a shaft-supporting bracket for the upperroll pivotally attached to said frame at a pointremote from the rolls, 7

. resilient means tending'to separate said rolls,

an operator-controlled lever bearing againstv said bracket arranged to press said upper roll into engagement with an interposed piece tween said operator-controlled device and of work, and resilient means interposed be:

the'bracket carrying said upper roll.

4:, In avcementing mach1ne,a frame, cos

operating superposed rolls carried uponsub-ist'antially parallel shafts,-,one1of said rolls 1 ofthe'work. p V

o 7. In a cementing maclnne,a cement-"carbeing arranged to apply cement toaninterposed piece of'work, driving connections between saldshafts said u er shaft bein mounted in a bracket pivoted to the frame bracket pivoted to the frame of said machine, at a. point remote from the rolls, one of said work, drivingconnections between said rolls, resilient means tend ng to separate said rolls,

upstanding bracketfing'ers on said. outstretched arm constructedvand arranged to guide the up-and-down movements of'said shaft-carrying bracket and to prevent lateral I deflection thereof, and an operator-controlled lever pivotally mounted in said 5. In a cementing machine, a'frame comprising a basehavingan outstretched arm, a roll mounted on a shaft extending through said arm,aco-operating roll mounted upon -a-substantially parallelshaft carried in'a bracket fingers extending aw-ay'from the rolls 7 toward the pivot of" the shaft-carrying bracket, said lever being arranged forengagement with said'shaft-carrying bracket atan intermediate point thereofso thatthe rolls, maybe pressed together for engagement with an interposed pie'cefof work Q T 1 6.'In a cementing machine, a framecom-e prising a base'having an outstretched arm,

a roll mounted on a shaft extending through sald arm, a co-operatingroll mounted upon a substantially parallel shaft carried in a bracket-pivoted to the frame of said machine at a point remotefrom the'rolls, one ofsaid rolls being arrangedto apply cement; to the work, driving connections between said rolls, v resilient means tending to separate said rolls, upstanding bracket fingers on said outstretched arm constructed and arranged to guide the up-and-down movementsof said shaft-carrying bracket to prevent lateral dcflection thereof, an operator-controlled lever pivotally mounted insaid bracket fingers extending away from'the rolls toward theppivot of the shaft-carrying bracket, said lever being arranged for engagement withsaid shaftcarrying bracket :at an intermediate point thereof so that the rolls may be pressed toj i gether for engagement with an interposed piece of work, and resilient means interposed between said lever and said shaft-carrying bracket allowing a slight separation of the rolls upon the passage of a thickened portion rying trough havinganopening at its upper side,a'cement-applyingrolljournaledin said I 7 having an opening at the top, a cement-applying roll journaled in said trough arranged to project through said opening, a portion of said trough adjacent to the upgoing side of the roll having a curved external contour, a doctor comprising a curved plate closely fitting and overlying the curved portion of the trough and having an edge portion arranged to co-operate with the roll to determine the amount of cement raised from the trough, and means for adjustably determining the position of said doctor.

9. In a cementing machine, a cement trough having an opening at the top, a cement-applying roll journaled in said trough and arranged to project through said opening, the portion of said trough adjacent to the upgoing side of the roll having a curved contour, and a doctor the rear edge of which coacts with the up-going side of the roll to control the quantity of cement delivered by the roll, said doctor comprising a plate the lower surface of which is curved to hug the trough and the upper surface of which is curved to avoid interference with the Work, said doctor being adjustably mounted on the trough for movement in close relation to the trough as its position is changed to vary the relation of the edge portion of the doctor to the up going side of the roll.

10. In a cementing machine, a barrelshaped trough having an opening adjacent to its outer end, a cement-applying roll journaled in said trough projecting through the opening thereof, and a doctor comprising a curved plate mounted upon the outer end of a pivoted arm and arranged to co-operate with the upgoing side of said roll to determine the amount of cement lifted out of the trough, said arm being pivotally attached to the trough substantially at the axis thereof.

11. In a cementing machine, cooperating rolls one of which is arranged to apply cement to pieces of work, and a work guide mounted adjacent to the intake of said rolls,

' said guide comprising a fork-shaped member provided with a depending apron attached to the lower side of the fork-shaped member.

12. In a cementing machine, co-operating rolls one of which is arranged to apply cement to pieces of work, and a work guide adjustably mounted adjacent to the intake of said rolls comprising a forked member having a hook-shapedfinger on one portion of said said forked member overlapping the end of one roll to prevent the insertion of work laterally between said guide and said roll. 13. In a cementing machine, co-operating rolls one of which is arranged to. apply cement to pieces of work, and a Work guide adjustably mounted adjacent to theintake of said rolls comprising ag forked member the upper arm of which afde'pending forward edge arranged to bear against substantial portionof the margin of the upper surface of the work to smooth it out. I

' 14;. Inac'ementing machine, co-operating rollsonejof which is arranged to apply cementitopi'eces of work passing therebetween, airedge gage adj ustably mounted beside the meeting point of the rolls, and a work guide adjustably mounted adjacent to. the intake of the'roll's, said work guide comprising a forkshaped member having apair of arms; said arms being positioned in staggered relation to leach otherand'to the bite of; the rolls to enable said arms to contact with the .work to straighten the work as it passes to the rolls.'." I

115i In a cementingimachine, co-operating superposed rolls one of which is arranged toapplycement to pieces of work passing therebetween, an edge gage adj ustably mounted beside said rolls substantially at the meeting pointof the rolls, anda co-operating fork-shaped work guide having an upper and a lowerarm and adjust-ably mounted ad'- j acent to the intake of the rolls having a depending apron attached to the lower arm of the fork-shaped member.

1 6. .In a'cementing inachinefa frame, a cement troughhavin'g an opening at the top, afcement-applyin'g roll journaled in said trough and arranged to project through said opening, a portion of said trough adjacent to the up-going side ofthe roll having an arcuate contour, anda doctorthe, rear edge of which coacts withg tlieup-going side of the roll to control the quantity of cement delivered by the roll, said doctor comprising a curved plate the under side of which fits the arcuate contour of said portion of the trough, said doctor being adjustably mounted so that it may slide over the trough to vary the relation of the edge portion of the doctor to the roll without being separated from the trough.

17. In a cementing machine, a frame, a cement trough having an opening at the top, a cement-applying roll journaled in said trough and arranged to project through said opening, a portion of said trough adjacent to the up-going side of the roll having an arcuate contour, an adjustable doctor coacting with said roll, said doctor comprising a curved plate the under side of which fits the arcuate contour of said portion of the trough, said doctor being mounted for adjustment in close relation to the trough to vary the relation of the rear edge of the doctor to the upgoing side of the roll and an arm extending across the end face of said trough for supporting and adj ustably determining the positionofsaid doctor without-interfering with the progress of work being dragged over the surface of the doctor, I a 18. In a' cementing "machine, a' barrelshaped trough having an opening at ,its top,

, apcement roll dipping in said trough and-rm tatable about an axis eccentric to the axis of the trough with its upper. surface projecting above the top of the trough, and a doctor arranged for cooperation with the up-going side of the roll thereby to control the quantity of cement carried by the roll, said doctor being pivotally mounted for adjustment about an axis substantially. coincidentwith the axis of said trough.

19. Ina cementing machine, a frame, an

outwardly extending barrel-shaped cement trough having an opening at its upper side and closed at its outer end, a cement-applying r011 ournaled in said trough adjacent to said closed end and rotatable about an axis eccentric to the axis of the trough to project through said opening, and a doctor mounted on an arm pivot-ally att-ached'to the closed end of the trough nearits center thereby to provide for adjustment of the doctor toward and away from the up-going side of the roll to control the amount of cement delivered by the r011. I g 20. In a cementing machine, cooperating rolls one of which is arranged to apply cement to pieces of work, and awork guide adjustably mounted adjacent to the intake of said rolls 7 andcompnsmga member, having ahook.

shaped finger overlapping theend of one roll toprevent the insertion of work laterally between said guide and said r011.

In testimony whereof I have signed my name to this specification."

JOHN W. co seliovn,

cal"

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