US1393062A - Machine for operating on heel-lifts or the like - Google Patents

Description

E. E. WINKLEY.

MACHINE FOR OPERATING 0N HEEL LIFTS OR THE LIKE. APPLICATION FILED DEC-29, $815- 1,393,062, I Patented Oct. 11, 1921.

I1 SHEETS-SHEET 1.

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E. E. W|NKLEY,.

MACHINE FOR OPERATING ON HEEL LIFTS OR THE LIKE.

APPLICATION FILED DEC-29, 1815.

1,393,062, Patented Oct. 11,1921.

11 SHEETSSHEET 2. 66

E. E. WINKLEY.

MACHINE FOR OPERATING 0N HEEL LIFTS OR THE LIKE.

APPLICATION FILED DEC-29, I815.

Patented Oct. 11, 1921.

11 'sHEETss.HEET a.

E. E. WINKLEY. MACHINE FOR OPERATING 0N HEEL LIFTS OR THE LIKE.

APPLICATION FILED DEC.29| I8I5.

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d m 2M m f 4 E. E. WINKLEY.. MACHINE FOR OPERATING 0N HEEL LIFTS OR THE LI'KE. APPLICATION FILED omza, IBIS.

1,393,062. Patented Oct 11,1921.

1 I SHEETS-S "EU 5.

E. E. WlNKLEY.

MBCHENE FOR OPERATING ON HEEL LIFTS OR THE LI'KE.

APPLICATION FILED mzc.29, 18I5.

1,393,062. Patented Oct. 11, 1921.

H SHEETS-SHEET-B.

Zdl'rae via; I fM7?/%%2Z W I E. E. W|N KL EY. MACHI'NE FOR OPERATING 0N HEEL LIFTS OR THE LIKE.

APPLICATION FILED DEC-29', 1815.

5 a 4. A] mm H. EM 0 M a Z w a 7 .4 6 f 4 n a mw/ WIM a v60 7 4 2. j a. w a a V4 ma %M% W E. E. WI'NKLEY. MACHINE FOR OPERATING 0N HEEL L|FTS 0R THE LIKE.

APPLICATION m n DEC-29,1815. 1,393,062. Patented Oct. 11, 1921.

I1 SHEETS-SH T 8.

E. E. WINKLEY.. MACHINE FOR OPERATING ON HE EL LIFTS OR THE HKE. APPLICATION FILIEDVDEQZB, 1815.

1,393,062. Patented Oct. 11, 1921 1-1 SHEETSSHEET 9- E. E. WINKLEY.

MACHINE FOR OPERATING 0N HEL LIFTS OR THE LIKE.

APPLICATION FILED 05029. 1815.

1,393,062. Patented Oct. 11, 1921.

H SHEETS-SHEET IQ.

/76 /76 we 6 I6/ E. E. WINKLEY. MACHINE FOR OPERATING 0N HEEL LIFT$ OR THE LIKE.

APPLICATION FILED DEC.29, I815.

1,393,062. Patented Oct. 11,1 21;

H SHEETS-SHEET II.

UNITED STATES PATENT OFFICEL ERASTUS E. WINKLEY, 0F LYNN, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORIORATION OF NEW JERSEY.

MACHINE FOR OPERATING ON HEEL-LIFTS OR THE LIKE.

Specification of Letters Patent.

Patented Oct. 11, 1921.:

Application filed December 29, 1915. Serial No. 69,207.

1 '0 all whom it may concern:

Be it known that I, Enas'ros E. \VINKLEY, a citizen of the United States, residing at Lynn, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating on Heel-Lifts or the like; and I do hereby declare the following to be .a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to machines for operating on blanks of sheet material such as the parts of shoe bottoms, and will be herein disclosed as embodied in a machine for operating on the lifts from which the heel of a shoe is made.

riccording to one method of buildingheels, a number of lifts or blanks of leather, leatherboard, or other material from which the heel is to be made, out to the required size and shape, are adhesively secured together one on top of the other until a heel is built up which will be of the required thickness when compressed. The heel is then condensed or compressed in a heel compressing machine, leaving it in the condition in which it is attached to the shoe. In order to prepare the lifts for assembling to form a heel in this manner it is obviously desirable that each lift shall be of substantially uniform thickness throughout its area. although adjacent. lifts may differ in thickness from each other; A very Large percentage of heels are made from the cheaper and very inferior grades of leather. and this stock is very uneven and bnnchy. often consisting of skivings, or of pieces of the cheap grades of split leather. Consequently, it is necessary to skive. these lifts or operate upon them in some manner designed to reduce them to a substantially uniform thickness. The present invention is concerned particularly with thetreatment of heel lifts which is desirable to prepare them for assembling in a heel.

The general object of the invention is to devise a machine which will perform the required operations on the lifts or like articles and arrange them conveniently for removal from the machine. It is proposed to make the machine entirely automatic in its action so that it will be necessary merely for an attendant to supply the machine with the features of the invention are applicable to machines which are not automatic, to this extent.

In order to render the feeding of the-lifts 60, automatic, the blank 7 feeding mechanism similar to that disclosed in my co-pending application Serial No. 18,49at, filed April l, I915, PatentNo. 1,251,852, dated January 1, 1918, may conveniently be employed. This mechanism is designed to insure the feeding of one lift or blank only at a time and has been found to operate very satisfactorily in the feeding of blanks having any substantial. degree of stiffness or rigidity. But, as just stated, the stock from which heel lifts are made often is relatively flimsy; and accordingly, it is an important object of this invention to further improve the feeding mechanlsm of my earlier application with a view particularly to enabling this mechanism to handle satisfactorily blanks of stock which are comparatively flexible. i

The invention also aims to devise means for interrupting automatically. the normal operation of the machine under predeter mined conditions, as for instance, when a lift becomes stuck in the machine, or upon the failure of the attendant to keep the machine su plied with lifts; a novel construction of s ziving mechanism designed to ha-n-, dle lifts varying widely in dimensions and to afford convenient access to the path followed by the lifts, so that this path may be' readily cleared incase a. lift accidentally becomes lodged in the mechanism; and to provide simple and reliable means for taking the lifts away from the skiving mechanism, and stacking them. I

The manner in which it is proposed to accomplish these objects and the various fea tures of the invention, including certain combinations and arrangements of parts, will be readily understood from the follow; ing description of the invention as embodied in a machine designed to skive oreven heel lifts and similar blanks of sheet material. Referring now to the drawings,

Figure 1 is a plan view of 'a machine illustrating this embodiment of the invention; 7 Fig. 2 is. a front elevation of the machine shown in Fig. 1; Fig. 3 is a central, vertical, sectional view plane Fig. 5 'is averticalysectionalview on an enlarged scale through part of the skiving mechanism of the machine;

Fig. 6 is a plan viewofthe upper part of this mechanism tipped into its inoperative p tionn v Fig. 7 is a plan view, partly in horizontal section. through a part of the'path of travel of the lifts after leaving the: skiving mechanismg'. 1' r Fig; 8 is a vertical, sectional view through a part .of th'e mechanism that, feeds the lifts to theskivinp; mechanism;

Figs.v 9, .10. 11; and 12 are fragmentary views showing successive steps inthe operation oflthe'lift separating me hanism or the means; that insures the feeding of one lift onlvat'a tilne';

Fig.2.l3 is a front elevation, partly in section, of the 'lift separating devices and certain parts adja entithereto;

Fig. 1e is avertical, sectional view through thejlifttransjferring mechanism; taken sub stantially on the line.1414=, Fig. 1;

' F igj-15xis a vertical line 15 1-5,,Fig. 4; v Fig 16.is a 'cro'sssectional view throua'h the transferring mechanismon the line 16-16, Fig. 4; j Fig; 17 is a rear elevation of the manazine'into which the lifts are delivered by the machine Fig. 18 is.a side elevation of part of the construction shown inFig. 17;

Fig;19 is a skeleton perspective view showing th'mecha'nism that. automatically stops the ma hine under certain conditions; Fig. .'20.is a plan view of certain parts of the me han sm shown in Fig. 19; and

Fig. '21-, is a cross sectional View on the line 21- 21, 'Figp7;

Briefly'state'd, the machine shown comprises a ski-w ing mechanism; a feeding mechanism designed to take lifts from a magaz ne and feed them automatically to said skivingmechanism', andin'cluding means for insuring the feeding of one lift only at a time ;"a transferring mechanism that carries the liftsaway fromtheskiving mechan sm,

and stacksthem in a magazine; mechanism that'operates aut'omatically to stopthe machine upon its Tfailuretofdeliver lifts in a predetermined manner; and adjusting means arranged to enable" the 'ma hine -to operate on lifts varying widely in dimensions. Referringnow'fparticularly to Fins l to 4;.

the skiving medmnism; shown is of the general type commonly used in themanufacture of boots and shoes to skive; split orleven" blanks of "leather; and comprises two rolls '2 and 3 arranged one above theother, and a stationary kn fe 4. projecting between said sectional View on the,

rolls. The periphery of thelower roll is roughened as clearly shown in Fig. 3, to

facilitate the feeding of the liftsyandythee2 secured to the fixed parts of the machine frame; and a 'V-shaped rear wall 7 carried by a bracket 8 which is mounted on a horizontal supporting; plate or table 9 formingpart of the machine frame; This braket is adjustable toward and from the plate 6'to enable the magazine to accommodate lifts differing in size; and it is secured in any adjusted position by 'a bolt 10': extending through a slot formed "in the bracket and th eaded into the plate or support '-9,"as

shown in Fig. 8. The liftsin the magazine z breast ends of'the lifts bear, and which is 5 rest on the'plate 9. the wal s 6 and 7 M V merely serving as lateral supports for the lifts; and th-ewall 6 terminates just above The sifa"e of th u pardn late 9- l.eav-

ins: an openinsr between the lower edge of this wall and the support'9 of a height suflicient to allow the thickest lift to be ex-" pelled through this opening. A we ght 12,

sl dab e in the magazine. bears on the stackof lifts positioned in it and pressesthem against the support 9. This weight carries a support 9 and flare outwardly at their upper ends. asbest shown in Fig. 2. so thatthey serve to guide the opposite side edges ofthe lifts as they settlein'the magazine and'sup' port them agamst lateral CllSDlHCGmonU.

These two side pieces are mounted on a bolt 18, supported'rotativelvin the frame of the ma hine and provided with a knurled handle 27 that has ight and left hand threaded por tions on which the two side pie es 18 are, i

respectively. supported. Consequent y, by

turning the hand piece 2-7 the side pieces 18 may be moved towardor 'from'each other to' adjust them for'lifts of different widths. check nut 27. mounted on the bolt 18 adj acent to'the handle 27, serves to clamp this bolt against accidental movement.

The lifts are fed out of the bottom of the magazine one at a time to the skiving mechanism by means of a reciprocating feeder a slide 15 and has'anotched forward end shaped to engage the rear end and thebottom face ofthelowermost lift'in thesta'ck.

. 14 (seeFigs. 8 and 8) which is pivoted'on' The forward end .of' this feeder also is i forked and its two portions thus formed project through slots 11, Fig. 7,111 the sup-' porting plate 9. Theslide' 15 reciprocated back and forth on aguide rod 16, thus causing the feeder 14 on its forward stroke to push the lowermost lift out of the magazine and carry it to the rolls 2 and 3. On its return stroke the feeder is depressed-by its engagement with the lift then at the bottom of the stack and slides back under the stack. A spring 17 acts on the feeder 14 in a direction to press its forward or lift engaging end upwardly, this movement being limited by the engagement of the tail of the feeder with a part of the slide 15, as clearly shown in Fig. 3. The mechanism for reciprocating theslide 15 comprises a link 19 pivoted at its upper end to the slide 15 and at its lower end to an arm 20 which is pivoted on a stationary lever shaft 21. The upper end of the link 19 is forked and has a block 22 pivoted between its arms which is adjust-ably secured by thumb nuts 23 and 24 to the threaded part 25 ofa link which is pivoted to the upper end of a lever 26. Thislever is fulcrumed on the lever shaft 21 and carries at its lower end a roll 28 that runs on the inner cam surface of a cam 29, mounted fast on the main shaft 30 s of the machine. This shaft is constantly rotated while the machine is in operation. The cam 29- operates through the connections just describedto give the feeder 14 its return stroke, and a strong spring 31, having its ends secured, respectively, to the machine frame and the lower arm of the lever 26, tends to hold the roll 28 in contact with the cam 29 and give the feeder 14 its forward or feeding stroke. The nuts 23 and 24 may be adjusted along the threaded part of the link 25, carrying the block 22 with them, and thus adjusting the limits of the stroke of the feeder 14 toward or from the skiving mechanism. This adjustment obviously is desirable to facilitate the feeding of lifts of different lengths.

The feeding mechanism so far described is substantially like that disclosed in my United States patent above identified. This mechanism also includes a stop similar to that disclosed in said application, which insures the feeding of one lift only at a time. That is, there is a tendency for the second lift from the bottom of the stack to feed ahead with the first lift, due to the friction existing between these two lifts, and this stop is positioned directly in front of the bottom of the stack and is so constructed as to distinguish between the first and second lift and to permit the first lift to be advanced by the feeder 14 but prevents the other lifts from being fed forward at the same time.

This stop comprises a forked member 32 (see Figs. 9 and 13) which, since it feels for the second lift, may be termed a finger, and a presser foot'34 that slides in each other, in directions toward and from the support 9 on which the stack of lifts rests. This holder is pivoted on a rod 36 so that the members'32 and 34 may move together toward and from the magazine '5. The finger 32 is pressed downwardly toward the support 9 by a spring 37, which abuts at its upper end against an overhanging extension 38 of the holder 35, and bears at its lower end on a collar 39 pinned to a rod 40 which is secured to a lug 41 that projects rigidly from the upper portion of the member 32. The presser foot 34 likewise is normally urged toward the support 9 by a spring 42, secured at one end to a pin projecting from the holder 35 and at its opposite end to a lug 44 projecting from the upper part of the presser foot 34. The lugs 41 and 44 both project through slots formed for them in the opposite walls of the holder 35.

A cam mechanism is provided to control the movements of both the finger and the presser foot and is operative to raise one of these members while the other is lowered. This mechanism (as best shown in Figs. 3, 8 and 13) comprises a sleeve 45, mounted to rock on the rod 36, and carrying at one side of said rod a pair of lugs 46 that straddle the rod 40 and are adapted to bear on the lower end of the collar 39, and provided at the opposite side of the rod 36 with an arm carrying a pin 48 that is positioned in a slot 49 formed in the upper end of a link 50, the lower end of which'is pivoted to the lug 44 that projects from the presser foot. In the position in which the parts are shown in Fig. 8, the

pin 48 acts through the link 50 to hold the presser foot 34 at the upper limit of its stroke in the holder 35: and the spring 37 at this time holds the finger 32 against the support 9. If, however, the sleeve 45 were rocked in a clockwise direction, the lugs 46 would engage the lower surface of the block 39 and operate through the rod 40 and lug 41 to raise the finger 32, the pin 48 at the same time moving downwardly andpermit ting the spring 42 to depress the presser foot 34. In order to effect the required rocking movements of the sleeve 45. it is connected by an adjustable link 52, Fig. 3, with one arm of a bell crank lever 53 which is fulcrumed on the lever shaft 21 and has mounted on its opposite arm a roll 54 that runs on the surface of a cam 55 mounted fast on the main shaft 30. A spring 56 operates on the lever 53 to hold the'roll 54 against the periphery of the cam 55.

' whichis effective to carry the finger 32 and cam surface of a cam 61 fast onthe main shaft spring 62 acts on the lever 60 in adire'ction tending tohold the roll in contact with the cam face of the cam 61, so that the cam is operative through the connections just described to swing the holder35 away from the magazine 5 and the spring 62 swings the holder 35 toward themagazine 5;.

The operating mechanisms above described are so timed with reference to each other that the fingerfl32 is" pressed downwardly into contactwith the support- 9whenthe feeder 14 startsfahead, carrying thefirst lift in the magazine from the position in which it is shown'in Fig. 8 to that in which 1t 1s shown in F 9, where the.fo wwirdedge or breast. of the. lift comes in contact with the finger.

32. The feeder lfpauses, at this timein its stroke bnt moves far enough .to cause the first lift toswing the finger 32 and consequently theholder 35' somewhat, away from the magazine 5, this swinging movement be ing resisted by the spring (32. The presser foot 34; nextadvancestoward the support 9 into contactwith theforward margin of the; ,first lift and presses. this part ofthe lift" firmly against the support.

If the second lift has been dragged forward by the first lift, themovejment ofthe presserfoot 34 may be arrested by itscontact withthe margin of the sec'ondlift, but in either event this presserfoot acts toforce, the margin of, the. first lift, adjacenttothe point of engage. ment] therewith of the finger. 32, firmly against thesupport 9. The parts are now in substantially thepositions in which they are shown inFig. 10; The finger 32 now rises and'its end moves across the forward edge "of the first lift away from the support 9 and toward the other lifts in the stack.

During this movement. the spring 62 keeps. pressing the finger 32 firmly against the edge of the first lift withsufiicient force to move this lift backwardly if it were not backed up by the feeder 14.. Consequently.

as, soon ,as the end of thej fin'ger is retracted far enonghto carryit out of contact with the forward edge of thefirst lift, the force of thespring 62 swings the finger 32 and presser foot 34 sharply toward the magazine 5,.moving the finger into the angular space be'tweenthe margin of the first lift. and the} forward edge ofy the secondlift. If the presser foot 358 is resting on' the margin of the first lift at this time,;ajs shown in Fig. 10,. ;-it will engage the forwardedge of the second lift and kick it backwardly; but ifthe resser ,7 foot is bearing on thef'second "lift, the finger V 32 will engaget he edge ,of the second lift I" and force it back] The upwardor'retractive movement of the finger 32 is of sufiicient ex -V tent to insure the movement of this finger out of engagement with "the edge of "the l V thickest lift, the presser foot 34 in'the Ineantime maintaining its contact with the first lift, as shown in'. Fig. 11. I The positions of these two stop members are then quicklyre}...

versed. That is, the fingerf32 is advanced. 1";

from'the position in which it appears in Fig. 11 until itcomes in contact with the up}.

per face'of the first lift and the presser foot 3a is withdrawn, the parts shiftingfrom. the positions in "whichthey are shownfinFig;

11 to those shown in Fig. 12. Tlie'fomvard strokeofthe feeder-l4; maybe resumed as soonas the finger 32has moved out ofengagement with the forward edgeof the first I lift; but preferably this movement is so timed asto allowthereversal of the finger and presserj foot to be completed beforethe drag of, the first lift on the second lift is suflici'ent to carry the second lift. beyond the plane of the rear face of the finger, in case.

the Pr s foot h pnen t e esting. 0. the second lift at this time. Of course if} the presser foot is resting onthe first lift,

it. will retain the second lift. This timing of the movements of the partsenables the which it is shown in Fig. '12, and b ear yieldingly on the upper face of the first .lift,

where it elfective to retain thesecondliftor limit the forward; movement of it As soon a the. feederflt carries the firstjlift out from tinder-the finger '32.,the sp-rim 37. f 1 0 5 forces this finger down into contact with the sup-port 9, as shown 8, and it remains finger .32to move down intotheposition'in in this position until the feede 14, has with- V: drawn. to the backwardlimit' of its stroke and moved aheadvagain sufiiciently to carry the lift then resting on thef support Q into contact with the finger, 32, asshown'in Fig.

9. 'VVhile thestop ischang the p05 I:

.sition in which it is shown in F 12 to :that

shown in Fig. 9, the holder. 3,5 is swung on its pivot tomove thefinger 32away from the stack of. lifts to allowfthe'm to settle and l is then swung .backag'ain into. the position. 7, shown inFig. 9.. The lift separatingopera .tion then is; repeated by the stop members 32 and s4. 1 a The present stop constrnctiondijfers from that shown in. my United. States patentj above identified. in'that in the. earlier con- I struetion the two stop memberslie one in front of the. other. ;.Accordingly, in effecting the separating movement" of the lifts it.

is possible,.,with;this construction, for the forward margin of: a very flimsy liftto he, dragged upwardly by .its contact. .with lt-he Stop 'fi edi erl d sweetie lf ntj f f". v.

the forward edge of the second lift and thus prevent the desired lift separating action. The present construction, however, prevents any action of this kind since the presser foot 34 eflcctually resists any tendency of the margin of the first lift to follow or be tial to the successful operation of this feed ing mechanism, since obviously a vertical magazine could be used as well if an aperture through which to feed the lifts wereprovided at the bottom of the magazine of a sufficient height to permit the passage of the thickest lift that would be run through the machine. If two or more lifts were then advancedat the sametime by the feeder 14, the separating mechanism would operate exactly as above described to insure the feeding of one lift only at each stroke of the feeder.

, WVhen two lifts are accidentally advanced together, it is desirable to have room enough to allow the forward margin of the firstlift to project in front of the second lift, or to allow the feeding mechanism to produce this relationship in the course of the separating I operation; and this relationship may be obtained with either arrangement of magazine mentioned.

The lift separating operation now being completed, the feeder 14: carries the first lift under a presser. plate 64 which is pivoted to apair of ears projecting from the lower end of the front wall 6 of the magazine 5 (see Figs. 5 and 8). This plate serves to hold the lift firmly against the support 9 and prevents any tendency. of it, to buckle. sure s aopliedto this plate by a small plunger 65 (see Fig. 5) which is guided ina housing 66 secured to the forward end of the yoke that supports the upper roll 2. and is pressed downwardly by a spring 67 positioned in said housing. This pin carries a head that slides in the chamber for the spring 67, which is larger than the passage I through which the pin itself slides, so that the head limits the downward movement of the pin. A plug threaded into the end of this chamber ba-"lrs up the spring 67. The two magazine plates 18 also guide the lift laterally during its travel toward the skiving mechanism.

The stroke of the feeder 14 is sufiicient to v carry the forward edge of the lift into the grasp of the rolls 2 and 3 of the skiving Presmechanism. This mechanism resembles in its general organization that of the ordinary skiving, splitting or evening machine. The shaft 69, which carries the lower roll 3, is supported at the opposite ends of the roll in bearing blocks, 68, Fig. 7, which are movable vertically in suitable guideways and are supported by stiff springs, one of which is indicated at 70 in Fig. 3. Stops 79, Fig. 7 limit the upward movement of the bearing blocks 68. Each spring is backed up by an adjustable bolt 71 threaded through a bracket 72 forming part of the machine frame so that the tension of the springs can be adjusted. The knife 4 (as shown in Fig. 3) rests on a suitable frame piece and is backed up by apair of bolts 73 by means of which it can be adjusted toward and from the plane of the axes of therolls 2 and 3. As shown in Fig. 7, the opposite ends of the knife 4 are beveled and areclamped under blocks 74 and 75, the latter block being readily removable to permit the removal of the knife- The shaft 7 6 of the upper roll 2 is journaled in a yoke 77 which swings on a pivot 78 mounted at one side of the plane of the rolls 2 and 3, so that the upper roll can be swung out of its operative relationship to thelower 'roll and the knife l, into a position where it will afford free access to the path of travel of the lifts through the skiving mechanism; thus enabling an attendant to clear this path readily in case a lift becomes jammed in any part of this mechanism. Fig. 6 shows the bottom of this yoke and the parts carried therebynvhen tipped back into an inoperative position. The two rolls 2 and 3 are driven by independent gear connections (see 'Fig. 5) with apinion 80 that rotates with a sprocket wheel .81 driven by a chain 82 which is driven by another sprocketwheel 83' fast on the main shaft 30. An idle sprocket wheel .84 (see Fig. 3) keeps this chain tight.

The upper. roll 2 normally is locked in its operative osition by means of a handle whichis adjustable to vary the operative relationship of the upper roll to the lower roll; This handle comprises a piece 86'p1voted to the yoke 77 (see Fig. 3) and a bolt 87 threaded into themember 86 and having pinned thereto a hand piece 88. A check nut 89, threaded on to the bolt 87, holds. this member in an adjusted position 1n the member .86. Mounted loosely on the bolt 87 be tween suitable collars which are pinned thereto, is asleeve 90 carrying a pair of lugs 91 that are arranged to lie under two shoulders92 formed on a bracket that constitutes part of the machine frame. This sleeve s prevented from rotating by means of a pm 93 which is secured to it and extends through a lug projecting from the part 86. This handle normally is held in the position in which it is shown in Fig. 3, by a lat h "Which grasps the upper part of the bolt 87 adjacent to the hand pieeeSB, and consists of the. position shown 'indotted'lines in Fig. 4;.

f'lVhen the upper roll is loeked'in its opjeratiiiefposition, as shown i i/Fig.3, the passageaof a liit'between the rolls 2 and tends to separate the rolls more} or less d'e .pending upon thethickness of the lift; The j weight of the yoke and the parts carried thereby is sodisp'osed with reference to the "Wpivot 78, that it tends to force the r0112 .toward the roll '3; and this tendency is aided "by, a plunger 97' (see'Fig. 4) mounted to slidefin'the holder 98'piv0ted on the machine 'frame i at 99. and pressed" downwardly by a V ispring lOO"contained in said jholder 9S. The do wnward movementof the roll 2' is limited ".1 by theengagementof a pin 9%, Figs 2 and 6.

on the yoke with one "of the bearing; blocks GSf'Th e plunger 97 bears on the yoke'77 at 'pointabovetheroll 2. The spring 100, "however; has only alight tension'ascom s 'pared with that of: the springs '79, so that, as 1 soonas a lift"entersbetween the rolls 2and 3', it. overcomes the weight of the parts carried'by'the yoke'TT'and the spring lOO'and lifts'the roll'il until the lugs 91 strike the i p'art's 92fand'prevent any further lifting npiovement. Thereafter the roll 2"operates asjthough t weremonnted to revolve on i' v fixed axisyand th'e lift then' depresses the to ,an extentdepending:upon its' thiokness roll 3' agairist thetension ofthe springs 7.0

.. "and-density. Sinee" both rolls are positively passes between the r0112 and, the knife being:

'retain'edr By loosening". the cheek nut 89'an'd i I shaped-sin]ilarly to the 'parts' .169 and :110

f turning the hand pie'oe88 to rotate'the bolt 8", the-lugs 9'1 can 'bGIllOVGd" toward or from the shoulders 92, thus adjusting the width of the spaoe'between the "roll 2 and theedgie:

7 of the knife 4' and varying); the operatite- It is contem plated-that-the machine will be used'to skive or even lifts which have been" graded aceo rding to thickness or density and that.

therefore; thefupper roll can be acoordin'g'" to the th ek ness or density of the lot of lifts "being*O erated-CupOn. Thiserrarigement of dri nin direetions tefndingto feed thelit t' between thenr "and againstthe edge of thev iknife i;this'knife will skiv'e oi? the part of 'theglift that passes between it "and the lower .roll 3, and this part will drop ithrough'the, machine as Waste; the part of the lift which the rol'lsjis also of adyantage' in tliatiiit results 1n jen'abhng'them to press thestock firmly between them even in case "they encounter a piece of stock 'mueh th'innerthan standing substantial'ehanges injthickne ss or density otthe' lifts. If this lneeha'nismis properly set, th'e' lifts come through it evened; or eae'h'l redueed to a uniform thickness throughout its; area.

The end of the holder 9811s rfoiddecl with a'notoh' 102"(seje Figjl shaped'to engag a t Ivtongue or ,proyection 103 on the yoke? whenthis yoke is swung into itsbaekward or in'o 'ierative position and to hold the yoke in this position. f, I

Mechanism is' provided 'whie'lrpperates automatically to" take thedifts aw y irom the skiving mechanism after they havebeen operated upon and to staek'themin amagalaterally during this movement b'etween'two side guiding members 195 and 106; respee tively," (see Fig. 7). Thesemembers are grooved to sit on tongued 'trainepi'eees' 107 and loli respeetively," and aresecuredadjustably' thereto by bolts projecting through slots formed in these parts. This arrangement, as clearly shown in Fla, 7',enabl'es the side guides to be 'adj u'stechto'war'd .andfroin each other to accommodate lifts in width. Plvoted to the respectiie guides: 19: and 106 are additlona-l guiding members 195;)

and 110, respectively acted upon hys'prinig's 111' and .112 in directions ftending'ltof swing them toward each other: and consequently tending; to press them against the" opposite sides o t'a lift as it travels between .ithe n along the support lOi. These membersltlS) andllO areso shaped that they not only engage the opposite edges of each" hilt 'also overlie the opposite margins-of the lift. At

the ends of the-parts 199" and 110 reliiote from the roll 3, these meinbers hayepivoted tl'ieretoadditlonal; guldes and lie; respectii'ely, (see Figsri and 21) which are and partake of the swinging movement of the latter parts 'abou't their pivots. These two members" 113 and 114-, howereif,-are mounted on horizontal pivots supported by the respective guides '199 and 1-10 so that their outer or tree-ends'can swingjnpwardly away i from the support; 104. Coiledspiings HS -and 11.6 aetg' respee'tivelyon the guiding members 113 and 114 to hold t hem 'i'ior'mally against the upper face of the support 104-.

zine. 'T he lifts, as they are forced past the "As eaclrindividual lift emerges frorn'between the-rolls 2 and 3 7 and begins to moire along the support 104 between the guides 105 and. 106, it is pressed against the support 104 by a presser plate 119 (see Figs. 5 and 6). The forward end of this plate is pivoted between two plates120, mounted at opposite ends of the upper roll 2and each loosely encircling the shaft 76 which carries said roll, so that theyare free to move around the axis of said roll, carrying the end of the plate 119 with .them. This movement, of course, carries the plate toward or from the support 104 over which the lifts travel. The rear end portion of the plate 119 has pivoted thereto a rod 122, which extends loosely through a plate 123 supported in the yoke 77, and is encircled by a spring that acts onthe rod 122 v to press the rear end of the plate 119 against the support 104. Another rod 124 similar to the rod 122 and similarly connected to the parts 119 and 123, is acted upon by another. coiled spring that presses the forward end of the plate toward the support 104., Consewhich is pivoted to the upper end of an'arm 120 mounted fast on a rock shaft 127. This "pusher, as shown in Fig. 7, is Y-shaped, its shank being pivoted to the arm 126 and fits two diverging ends being curved to pro ect through slots 128 formed in the plate 104, where they are operative to bear against the back of a lift near its opposite 40.

sides and push it along the support 104 away from the skiving mechanism. A leaf 'spring,shown in Fig. 3 acts on the-pusher 12-5 to hold its lift engaging ends in the slots 128,j but permits this member to be depressed on its return stroke by its engagement with the bottom of a lift resting on fthe support 104. The presser device 119 v and the overlapping margins of the guides. 109 and 110 hold the lifts on the support while they are being advanced by the pusher *and'r'esistany tendency of the pusher to raise the lifts off the support 104 as it travels hackwardly under them. The two arms or pushingends of the part 125 rise when they arrive at the rear end of the forward lift,

since they are so spaced apart as to enter the space between the opposite breast corners of one lift and the curved rear end of the next preceding lift.

This pusher 125 advances the lifts one at a time along the support 1.04 into the grasp of a rotary transferring device. Inasmuch as 'its is desirable to have the pusher deliver the lifts at a. definite point, and since it will have to carry lifts varying in length,

provision is made for adjusting the stroke of the pusher accordingly. The operating mechanism for this pusher includes an arm 129, Fig. 3, fast on the rock shaft 127, and a link 130 connecting the free end of this arm with a block slidable in a slot 181 formed in a lever arm 132 pivoted on the lever shaft 21. Another arm 133, pivoted close beside the arm 132 on the shaft 21, carries a roll that runs on the periphery of a cam 134 fast on the shaft 30. The two arms 132 and 133 are connected together rigidly but adjustably so that they act as a bell crank lever and transmit through the mechanism just described the motion of the cam 134. to the pusher 125. For the purpose of connecting the two lever arms in this manner each. arm is provided with a lug, and a bolt is threaded into one of these lugs and extends loosely through the other and has fast there on a collar and a handle 137 which bear on opposite sides of the latter lug, so that as this bolt is turned it swings the two arms 132 and 133 toward or from each other. This adjustment obviously is effective to transfer the limits of the stroke of the pusher 125 along the support 104 without changing the length of said stroke. A check nut 138, threaded on the bolt 135, serves to clamp the handle 137 in adjusted position.

In order to change the length of stroke of the pusher 125, another bolt 139, mounted for rotation in a lug carried by the arm 132, is threaded through the block that slides in the slot 131 and is provided with a handle 140 and a check nut 141 similar to the parts. 138 and137. By turning the bolt 139, the block carrying the lower pivot of the link 130 is moved'along the slot 131 toward or from the pivot point of the arm 132, and thus varies the throw of this block, and consequently the throw or length of stroke. of the pusher 125. These'adjustments enable an attendant to so modify the stroke of the pusher 125 that it will push a lift of any ordinary size to a given point on the support 104.

The pusher 125 carries the liftsv into the path of a transferrer consisting of a carrier member 144 on which are mounted three pairs of grippers, each pair being operative to grasp a lift between them and transfer the lift from the support 104 to the magazine in which the lifts are stacked in convenient condition to be removed from-the machine.

1 Each pair of grippers lconsists ofirtwo members 152. and l5l,cand since the three pairs are alike 1n construction and mounting a detailed description of one pair only Qannular' cam plate 157 is secured to the outer 1 49 vproperlyaway from its cooperating car facevoftheipart 149, as showniniFigs. 15 and 16, where it cooperates vwith thecollar 15 6 to enable the shafts 155 to space the part rier partl /i-h These shafts also eolnpel the parts a 149: and 157 to rotate with the shaft L a 11.45. i Each gripper 152, thus is pi otally "mounted inthe rotating 1 carrier; and in order. .to'controlits motion about .itspivot ,eachfshaft 155" has pinned thereon a small "rocker headl59,as best shownhinlEigs. 1, U U

, -.P iof gr p rs t e, et v me e a of and 161. "One ofith ese rolls .proieots'farther from'fthe, rocker head than ,the'f other, as

Hand 15, which carries two cam rolls 160 Shown ,inuFig. 15,. and they are designed Ito run in different cam ways or paths formed inastationary camv162 whichis secured to the face of the bearing for the shaft 145. The carrier rotates in. a clockwise direction as the parts areseen inhigsl ;andthese I dotted-line RfF 1 41, and in the direction cainways are ,shaped to,eauseeachgrippen 152 totravel in such apath that its free end moves in the pathindicated by the indicated, by :the arrows in said line. @The 1 other gripper ,541 ofeach pairis pi oted on; 7 its companion gripper 1,52,,asshownin Figs. a 7 1 1 and16, so that it'partakes of' thehmovel \ments of the latter gripper; but canlalso swing ,on it, Normally the grippers, are

i 1 held closed bya coiled spring 165.. In order to open the grippers to enablethem ,to grasp .c a lift, each ofthe grippersl54c-is, provided with a tail piece 166; and as each ,pair of v grippersswingtoward the position in which U the lower left hand pair is shownfinjig. 14:,the tailpiece 166; is swungiu jnwpon; ntact with ia pin, 170 that projeets through. I [the stationary bearingj'ineinber 15.0, The. frotatiye, n vement of the} arrier, while. thetail piece. 166 rein'ains in contact the pin 170, swingsthe gripper liia about its pivot into an open position with reference to its. compamongr pper 152;, the latterI gripper, in the meantime beingswung, by

' pers is thus held open, the pusher 125 7. advanoes a lift a'long the support 104 into their gras'pgand assoon as the pusher 125 has the engagement of the roll 160 with the cam Q 162. intoa positionsubstantially {parallel with the-upper face of theisupport 104;, as shown in Fig. le While this pair offgrip the support 10 4. 7 Furtherrotatiue movement ofr-the barrier 7 ,144 effects; the transfer tween the grippers to a horizontalreeeiying I 150' adjacent :to said end, and this bracket carries a roll 173 that runs onithe facelof the I cam 157 vwhich rotates with the carrier part 149. r Aspringl'i actson the bracket 171 to press it and. the pin O inwardlyinto the path ofkthe tail pieces a 166; T The -rotative mdyement of the 'carrier also tends to swing the tail piece :166 out ofg engagementwith the pin 170. A thin band or guardlZGfsee Q Fig. 14) partly encircles the transfei rerand prevents theaccidental entry of a lift into theinterior of the transferre r,;-

. Aslsoon as a lifthasbeengraspedby a the carrier 14 1 causes the gripper-site raise qthe lift oifthe support lo kand transfer it bodily; The. two guide -meI-nbers '113 ;and

114 overlie the opposite marginal portions of thehlift asitrests on the-supp0rt l04; and theouter ends oftheseguide pieces are, by 4 their. engagement with -th e lift, swung upwardly about their pivots againstrthe tensionof thas'prings 115 and ,116, respectiyely, until the lift has, been, carried far enough to move it out of engagement with these memhers, when their springsreturn them again into their normal positions in contact with bi-th e v.hfea, be-

magazine li'l which comprisestwof-L-shaped members faeing each otheryasshownin Fig. .17. The grippers swing theglif t they carry intothe open end of this-magazine and behind a yieldable latch-- or; pawl 180 vwhich retains them in-the; magazine. As

d -ed are e e e e rei sa e to 1 permit the-fingers of -the, grippers '1 52 and 15-4 to project therethrough. and i as shown in 145111 1 6 upper end I oftthis rests ,on a stationary bracket163,-constituting a ;portion of the bottom wall of the magazine,

which s similarly. slotted and "is provided on its. upper ,surface zwith a,shoul der-,-164.

As a pair. of grippers. (carry a lift. the

open end of the magazine, the breast edge of the lift rides over theupper. end of the guard andinto the notclrbellilld the shoulder 16% The entranceio-fithe lift intothisinotch .7 is facilitated .by the :peculiar retiring, move- .ment of the grippers which,.as indicated in Fig 14:,- is directly downward,"f frorn; the

shoulder. 164 il hat ..i s,.veach 'pair of grip:

pers swings a lift into the open end of the magazine, crowding back the other lifts already in it, and then retires, pulling the lift into the notch behind the shoulder 164 and sliding off the lift during its retiring movement. It is thus unnecessary to open the grippers to release the lift. In this manner, the lifts are successively piled in stacked relation one against another in the magazine.

The two plates 178 constituting the receiving magazine are, as shown in Figs. 3, 17 and 18, supported on suitable stationary parts secured on the frame and these two plates are adjustable toward and from each other. For the purpose of effecting this adjustment the members 17 8 are provided with depending lugs which enter, respectively, notches formed in the upper ends of two arms 181 (see Fig. 17) pinned to rock shafts 183 thatlie under and parallel to the parts 178. These rods carry intermeshing segments 184 and one of them has secured thereto an arm 186 whichcarries a clamping handle 188 extending through a slot 189 formed in a stationary bracket mounted on the machine frame. By moving this arm up or down, and turning the handle 188 to lock it in an adjusted position, the outer ends of the arms 181 are swung toward or from each other, carrying with them the two parts 178 of the magazine and thus increasing or decreasing the width of the magazine. A similar pair of arms, one of which is indicated at 190, Fig. 3, is secured to the rods 188 near the forward end of the magazine so that both ends are adjusted at the same time. As best shown in Fig. 1, the forward. side plates of the magazine consist of two pieces 179, pivoted respectively to the two parts 178, and each held substantially in alinement with the members 178 by springs,

one of which is indicated at 191. These parts 179 flare outwardly at their forward ends to aid in guiding the lifts into the open end of the magazine; and the springs 191 allow these parts to yield under pressure of a lift and tend to center the lift in the magazine.

Broadly considered, the'specific construction of the receiving magazine is immaterial, and any form of device or means for receiving and holding lifts or blanks in stacked relation maybe employed. 7

As above stated, it is desirable to interrupt the normal operation of the machine under some conditions, as for instance when the supply of lifts in the magazine 5 has been exhausted or when for any reason a lift has become stuck in the machine. In the present construction, this interruption of operation is efiected by stopping the entire machine, although in some cases it may be desirable to stop the operation of a certain mechanism or mechanisms only. In the arrangement shown a mechanism is provided which is controlled by the passage of lifts through the machine so that, when the machine is operating properly and the lifts are traveling through the machine in the desired manner, the machine is maintained in operation; but upon the failure of the machine to deliver a lift at a predetermined point in each cycle of operations, the mechanism above referred to acts automatically to throw the power off the machine and stop it. This mechanism is under thecontrol of the latch or pawl 180 at the receiving end of the magazine 178.

Referring now particularly to Figs. 1, 2, 4 and 19, it will be seen that the main shaft 30 of the machine carries a loose pulley 193 and a fast pulley 194 and that a belt shipper 195, pivoted on the frame, is arranged to throw the belt 196 from either pulley to the other. lVhen the machine is in operation the belt of course is on the fast pulley 194 and the shipper 195 at this time is in the position in which it appears in Figs. 1, 2 and 19. A shipper rod 198 is arranged to bear against the shipper 195 and is supported in suitable guides for longitudinal movement in a horizontal plane substantially parallel to the shaft 30. A spring 199 acts on this rod 198 in a direction tending to cause it to throw the shipper to transfer the belt from the fast to the loose pulley and thus to stop the machine. The rod,however, is normally locked against movement under the influence of this spring by means of a latch 200 pivot ed on the machine frame and having a tail piece, as shown in Fig. 19, lying in the path of a step 201 fixed on the rod 198. A coiled spring acts on this latch 200 to hold it in engagement with the step 201. In order to more the latch 200 to release the stop, a rod 203 (see Figs. 4 and 19) is supported in suitable guideways for longitudinal movement into and out of engagement with the upper end of this latch and is urged toward the latch by a spring 204. Normally this rod is held out of engagement with the latch, by the engagement of a roll 206, which it carries, with the upper arm of a bell crank lever 205 fulcrumed on the shaft 21. The lower arm of this lever carries a roll that runs on the surface of a cam 207 fast on the main shaft 30, a spring 208 acting on the lever to hold the roll against the cam. This cam is so designed that it holds the upper arm of the bell crank lever backward during the greater part of each revolution of the shaft 30, which produces one cycle of operations of the machine. There is, however, 'a short low spot in the cam 207, as shown in Figs. 4 and 19, which permits the rod 203 to move the bell crank lever 205 forward and to come into engagement with the latch 200

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