US1313121A - Asiiingtoni d - Google Patents

Description

W. E. SCARLETT AND C. F. ADAMS.

LASTING MACHINE.

APPLICATION FILED ocT. II. |915.

Patented Aug. 12, 1919.

' 4 SHEETS-SHEET I.

40% fr@ if THE COLUMBIA PLANonIzAmI cm. WASIIINIITUN, D. c.

w. E'. scARLETT AND C. F. ADAMS.

' LASTING MACHINE.

APPLICATION man ocT.1l.1915.

4 SHEETS-SHEET 2.

Patented Aug. 12

RAD" co.. WASHINGTON, n. c.

W. E. SCARLETT AND C. F. ADAMS.

LAsTlNG MACHINE.

APPLICATIQN FILED OCT. l1I. 1915.

' Patented Aug. 12, 1919.

4 SHEETS-SHEET 3.

THE COLUMBIA PLANoonAPu co.. wAsHlNGoN. D. c.

UNITED STATES PATENT oEEICE.

WILLIAM E. SCARLETT, or EAST LYNN, AND CHARLES E. ADAMS, or NORTH BEVERLY,l MASSACHUSETTS, ASSIGNCRS To HAMEL SHOE MACHINERY COMPANY, 01E- LYNN, MASSACHUSETTS, A CORPORATION 0E MASSACHUSETTS.

LASTING-MACHIN'E.

Specification of Letters Patent.

Patented Auw. 1a, 19.19.

Application filed October 11, i915. Serial No. 55,231.

of the general type shown -in the patent to Shaw, No. 571,404, patented' November 17,' 1896.' One principal object of the invention is to provide improved means operable by a single manual actuating device for moving the heel post with the last thereon backward and upward to position the same Securely in the heel pad or rest and in proper operative relation to the heel wipers. In accordance with this feature of the invention the heel post is preferably moved first with a major component of yielding backward movement to bring it into engagement with'the heel pad, the heel post having at the same time a component of vertical movement which gradually increases relative to the backward movement so that the heel post moves upward in a concave curve until it finds its seat in accurate relation to the wipers on the heel wiper carriage. Another important object is to provide a machine wherein the manual jacking movements required are very much shortened relatively to those required in prior machines where relatively long movements have been necessary; thus producing a more rapid working machine.- A further object is to provide means operable by a single manual actuating device for acting simultaneously and also successively on the heel and toe portions of the shoe to clamp or jack the same securely in accurate operative relation to both the heel wipers and the toe wipers on their respective carriages. In accordance with a further feature of our invention such means is operable entirely independent of the movement of either the heelwiper carriage or ofthe toe wiper carriage, In accordance with this feature of our invention also, the final jacking pressure is eq'ualized and apportioned ,between the heel and toe automatic-ally as the single actuating lever is operated, so that the heel and toe portions of the last receive eachthe correct amount of clamping pressure so distributed as to produce the most effective jacking. A further important feature of the invention consists in a depressing hold down manually operable to coperat'eI with. the upwardly acting toe restA toy clamp-the Itoe portion of the last securely for the toe wiping, stretching, andwiring operations-.- In accordance with this'fe'ature of the invention we preferably rovide ahold downnormally yieldingly wit drawn to inoperative position but capable of being easily pulled forward to operative position, and provide operating means for this hold down` equiped with a relatively light spring arrange for limited reaction to cause the toe to be pressed yieldingly downward upon the actuation of the hold down operating device, and: equipped also with a much heavier spring adapted to permit the hold down to yield under the final pressure of the operative mechanism. A further feature of the invention consists in the provision of a toe rest yieldingly mounted and formed as a self contained unit adjustable along the ways of the bed; this toe rest being preferably arranged to be optionally connected to the toev wiper carriage or disconnectedv therefrom at will. A still further feature of the` invention consists in a Vconstruction whereby the toe rest and its post are operable independent of the heel post mechanism and vicev versa for the preliminary jacking and positioning of the last, but whereby the toe rest is automatically brought into cooperative relation with the heel post mechanism to be operated simultaneously therewith by a single operating mechanism for the impart-- ing of the final pressure t0 thev lastl against the wipers. The foregoing and other specific' objects and features of theinvention will be' better understood from the following detailed description taken in connection with the accompanying drawings `and will beA thereafter pointed out in the appendedv claims. l

Referring to the drawing'sf 3. Figure 1 is a side elevation and partial sectional view of a machine constructed in accordance with our invention;

Fig. 2 is a partial side view thereof showing especially the operating mechanism;

Fig. 3 is a detail in vertical section;

Fig. 4 is a detail of another part in vertical section;

Fig. 5 is a detail of the toe rest in vertical section;

Fig. 6 is a fragmentary elevation showing a )art of the treadle operating mechanism;

Fig. 7 is a fragmentary elevation of a lever locking means;

Fig. 3 is an enlarged elevation and partial section with parts broken away showing the immediate operating mechanism for the heel post;

Fig. 9 is a sectional detail of the hold down;

Fig. 10 is a fragmentary plan view of the hold down device; and

Fig. 11 is a view similar to Fig. 1 partly in elevation and partly in section, and showing a slight modification including separate means for drawing the toe rest downward.

The machine is provided with a suitable base 1 resting on legs 2. From this base extend spaced apart uprights 3 bearing at their top a bed or table 4 equipped with opposite parallel ways 5 in which are adjustably fit-ted a heel wiper carriage 6 and a toe wiper carriage 7, these carriages being adjustable endwise toward and from each other by screws 8, 9 respectively, operable by hand wheels 10 as is usual, these screws being swiveled in the bed and engaging depending lugs 11 on the respective carriages. The heel wiper carriage 6 is equipped with heel wiper mechanism 12 which may be of usual or any suitable type and operable by a lever device 13. The heel wiper carriage is also equipped with a suitable heel pad or backing rest 14. The heel wiper mechanism and the heel pad are mounted on the carriage 6 with a yielding and pivotal connection indicated at 15 which may be of usual or suitable type. Toe wiper mechanism 16 is likewise mounted on the toe wiper carriage 7 with a yielding pivotal connection indicated at 17, this wiper mechanism having lever operating means 13 and being equipped also with a toe rest 19. The parallel ways 5 which preferably extend continuously lengthwise of the table or bed 4 serve not only for the adjustment of the heel and toe carriages 6, 7, but also to permit the adjustment therealong of a mounting block/20 engaged therewith and to which is slidably fitted a toe rest 21 which engages the toe of the shoe being lasted from underneath and will be further described presently. The heel jack pin or spindle 22 .is pivotally mounted at 23 on the top of a stout rod or post 24 which extends upward from adjacent the base 1 where it is pivotally secured at 25 to a floating lever 26 to be presently further described. The jack post 22 is carried immediately by a block 27, the lower face of which is pressed upon by a head 28 acted on by a compression spring 29 mounted in a housing cap 3() at the top of the post 24, this construction permitting the jack post 22 to swing yieldingly to a limited extent determined by the clearance between the head 28 and the top of the housing 30 as will be readily understood. The post or rod 24 is extensible by means of a turn buckle device consisting in a collar 31 internally threaded at its two ends, the upper threads engaging threads 32 formed on a depending portion of an upper part 24L of the post 24 while the lower threads of said collar engage threads 33 on a lower portion 24b of the post 24. The upper post portion 24a is hollow and receives therein a reduced upward extension 24c of the lower post portion 24b which has a slidable key connection with the upper post portion as indicated at 34. This turn buckle device thus permits the jack post 22 to be adjusted upward or downward while holding it and its hinge 23 in circular ali-nement. rl`he Hoating lever 26, so called because it has no fixed fulcrum, is guided at its respective ends by posts 35, 36, upstanding from the base, the lever ends for this purpose being forked to engage said posts laterally and be guided thereby. The posts 35, 36 are each provided with a pin 37 to limitthe downward movement of the respective ends of lever 26. The post 35 is relatively short, z'. c., just high enough to guide its lever end while the post 36 is extended farther upward with a compression coil spring 3S therearound reacting against the adjacent end of lever 26 and having a backing against a hand nut 39 adjustably threaded on the top of the post 36; this for a purpose to be presently further explained. -The lever 26 which has the lower end of post 24 pivoted adjacent one end thereof, has pivoted at 40 adjacent its other end an upstanding pusher rod 41 with a cupped pusher head 42 adjustably threaded on the upper end thereof and held in adjusted position by a lock nut 43. The cupped pusher head 42 has loosely fitted in the vertically elongated cup 44 thereof, `the lower end of a pusher rod 45 which is slidably fitted through the mounting block 20 and has adjustably fitted at its upper end thc toe rest 21. The mounting 20 is hollowed out to form a vertical recess 46 around the rod 45 and the rod 45 has encircling it a compression spring 47 acting against a collar 48 fixed on said rod, the other end of said spring reacting against a hand adjustable nut bushing 49 threaded in the lower end of the housing 20 and serving also as a guide for the lower portion of rod 45. The collar 43 is so located that when pressed by the spring 47 against an upper stop on the housing 20, the lower end of the rod 45 will2 then besome little above the bottom of the cup'44'with the lever 26 in lowermost position as shown in Fig. 1. The toe rest 21 is adjustably fitted to the upper end ofpusher rod 45. For' this purpose the upper end of said rod is threaded as seen at 50 and equipped with a lengthwise extending key way 51 in which the inner end of a pin 52 threaded' through the rest 21 is slidable. A nut 53 is fitted to the threads 50 and thus serves` as an adjustable seat for the rest 21 permittingsaid rest to be raised and lowered as requiredby merely7 turning the nut 53 which it will be noted is in a specially convenient position for this purpose, being above the table 4 and adjacent the toe of the shoe; The lever 26 is providedwith a series of spaced apart holes 54 along the length thereof permitting the heel supporting post 24 and the pusher rod 41 for the toe rest to be relatively adjusted along the length of said lever.- For operating the lever 26 a rock sha-ft 55 is mounted in the base of the machine just underneath the lever 26 and crosswise thereof approximately midway'of' the length of the lever. This' shaft has fixed thereona toe cam 56 extending away from the lever end to which'the post 24 is pivoted and toward the pusher bar 4r of the toe rest. The shaft 55 may be operated manually either by hand or foot power as preferred, but as herein shown we provide an upstand ing hand* lever 57 fixed at one end of said shaft and having at its up er end a handle 58 disposed. conveniently or the operator. The shaft 55 also has rigidl therewith a lateral projection 59 equipped with a threaded stopl pin 60 engageable withan abutment surface onv the base toy limit the backward movement of said shaft, and atensionspring 61 fixed at' its upper end to the frame work has its lower end engaging an arm 62 rigid with the shaft 55 and" outstandingoppositely to theprojection 59, this spring thus tending to turn the shaft backward asl far as permitted by the stop 60, z'. e., to a posi-tion where. the cam 56 is in lowermost inoperative position. For holding the lever 57 and the parts operated thereby in forward adjusted position a ratchet bar 63 is pivoted at one end to the frame work at 64 and suitably held guided transversely of the lever 57, saidlever having double spring pressed pawls 65 coperative with the teeth of said ratchet bar; such double pawl construction permitting a relatively close adjusted setting of the lever as will be readily understood. For trippingsaid pawls to release the lever 57 when required, a tripping lever 66 is pivoted te the lever 57 at 67 and-'equipped with a downwardly extending toe 68 engageable with the rear portions of said pawls.- It may new be understood that as the cam 56 is rocked bythe shaft 55 it will lift the lever 26 and the toe] rest end of; said lever being first yieldingly held down by the spring 38, the first movement will be to lift the other end of the lever,thus raising the heel supporting post 24. In accordance with our invention the initial movement of the heel jack post 22 hasV however amajor component of backward movement to bring the heel of the shoe back into thel heel pad. To effect this the shaft 55 has fixed thereto and extending at the opposite side from the cam 56 an arm 69, to the end of which is connected at 70 the lower end of a stout coil spring 71, the upper end of which is connected at 72 to one extremity of a bell crank lever 7 3 fulcrumed at 74 to the frame work. The spring 71 is mounted on and encircles a telescopic rod 75, the end's'of` which are pivotally connected to the lever ends at A70, 72 respectively. The bell crank lever 73 has its other arm 76 ex-r tended downward and formed with an elongated slot 77, in which operates a pin 78 xed toE and projecting from a nut block 79 slidablyfitted in a horizontal sleevehousing 80 fixed tof, the frame work which has an elongated slot 81 to-permit thel requisite play of the pin 78.A The nut block 79 has fitted therein a coarse threaded shaft 82 having at its outerend ahand operating wheel 83 and being swiveled at its inner end at 84 to a stirrup 85 pivotally connected at 86 to a sleeve 87 slidable on the post24 intermediate the length thereof, and held invertical position from the shaft 82 bythe swivel connection 84 which for this purpose is somewhat elongated. v

Referring especially to the form of the toe cam 56 as seen in Figs. 1 and 8, it may now be understood that as the shaft 55 is rocked forward' it will` cause the cam 56 to present at first a comparatively short radius portion to the lever126 resulting in a relatively small movement of said lever and of the heel ack post which is then alsorelatively near to the acting portion of said cam, so that the resulting vertical movement of the heel jack post is at first relatively small. At this time, however, the arm 69 acting through the spring` 71 will yieldingly swing bell crank lever 73V and slide the nut 79zoutward, thus carrying the heel jack post backward, and since the sleeve connection 87 to the post 24 isa considerable distance below the jack post 22 and relatively near the fulcrum pivot 25, this initial movement will result in a relatively large component of yielding backward movement imparted to the heel jack post 22, causing the heel to be yieldingly pressed into the heel pad and properly seated therein at the beginning of the jacking operation.

For coperation with the toe rest 21 we provide a hold down device operative from above to oppose theV toe rest. This consists in a shoe' 88 having its lower operative portion formed asa presser plate 89 slidably deve tailedto the upper portion of the shoe and held in adjusted position by a suitable locking pin 90. The shoe 88 is pivoted for limited tilting and lateral swinging movenient at the lower end of a stem 91, said stein for this purpose extending with a loose lit into a cup 92 of said shoe and a cross pin 93 carried by the shoe passing through an enlarged hole 9-1- at the lower end of the stem. rEhe stem 91 is pivotally carried at its upper end at 95 in the forward forked end 90 ot' a hollow plunger 97 slidably fitted in a sleeve head 98 fulcrumed at 99 to bracket 100 upstanding from the toe wiper carriage. The hollow plunger 97 is provided near its forward end with a flange stop 101 and it is normally held retractedas far as permitted by said stop by a light tension spring 102 housed within said plunger and fixed at one end thereto, its other end being held by a pin 103 extending in from the sleeve head 98, this pin serving also as a guide to hold the plunger 97 in circular alinement and limiting its forward movement by fitting in an elongated slot 10% of said plunger which is suit-ably proportioned for this purpose. The position of the flange stop 101 is such that the light spring 102 normally retains the hold down retracted back from the toe rest until it is drawn forward by the operator, the spring 102 being light enough so that it interposes relatively little resistance for this operation. For swinging the head 98 to operate the hold down a rod 105 is pivoted in one of a series of holes 106 some distance to the rear of the fulcruni 99. This rod 105 which is a composite sectional and yielding one as presently explained has its lower end pivotally connected at 107 to a lever 108 fulcrumed to an ear 109 depending from the base 1. The other end of lever 108 is adjustably connected through a link stirrup 110 to a treadle lever- 111 fulcrumed underneath the base at 112 with an operating treadle 113 extending forward to a convenient point. The lever 111 has pivoted thereto at 114 a bell crank locking lever 115 having an upright portion bearing a pawl dog 116 engageable with a vertically mounted ratchet bar 117 carried by a bracket 118 depending from the base. The other end 119 of said bell crank lever extends up through the treadle 113 as seen at 120 so that it may be pressed by the foot for tripping as required, it being yieldingly held in such position and to cause the pawl 116 to engage a ratchet tooth by a suitable spring 121. Thus upon depressing the treadle 113 the hold down which has been previously pulled forward to operative position by the operator may be pressed down upon the shoe from above to oppose the toe rest 21. The composite pusher rod 105 through which thrustl i1npulse is transmitted from the treadle to the hold down 88 has two holding connections interposed therein, 2'. e., one adapted to yield to a limited extent under relatively light pressure, and the other adapted to yield only under relatively heavy pressure. For this purpose, said rod is formed of a lower portion 105LL which lits into a sleeve 122, having a pin 123 operative in an elongated slot 124; of said sleeve which determines the extent of sliding movement of the rod portion 105t in said sleeve. The rod portion 105a is normally held with the pin 123 at the lower limit of said slot by a relatively light compression spring 125 reacting between the lower end of the sleeve 122 and an abutment head 126 at the lower end of the rod portion 105% Fixed in the upper end of the sleeve 122 and spaced from the end of the rod portion 105a as seen at 127 is an intermediate rod portion 1051, the upper end of which is adjustably threaded as seen at 128 into a sleeve head 129 being secured in adjusted position by a locking nut 130. The upper end of the sleeve head 129 has at each side a vertically elongated slot 131 in which operates a pin 132, these pins extending in from opposite sides of a head 133 adjustably threaded on the lower end of a rod portion 105c and held in adjusted position by a lock nut 134. A relatively strong and stiff spiral compression spring 135 is fitted on the reduced upper portion of the sleeve head 129 having a lower abutment against a nut 136v threaded on the lower portion of said head and its upper end pressing strongly on the lower end of the head 133 to hold it up as far as permitted by the movement of the pins 132 in the slots 131. The mounting block 20 of the toe rest 21, which as explained, is slidably litted to the ways 5, may be either clamped to the toe wiper carriage 7 for adjustment therewith, or be movable as a separate entity, at will. F or this purpose we form the block 20 with a plate portion 137 which, as the block 20 is slid toward the carriage 7, extends under the adjacent portion of said carriage where it may be clamped thereto by a clamp screw 138 threaded into the carriage 7 and extending through an elongated slot in plate 137 and downward through a slot passage 139 in the table where it is equipped with an operating' head 140. lVhen this screw 138 is set in place therefore, the toe rest mounting 20 is adjustably clamped to the toe wiper carriage 7 to be moved therewith under the action of the adjusting screw 9. Upon the loosening of the clamp screw 138, however, the mounting head 20 is free for separate movement to be adjusted as required along the ways 5. A suitable clamp plate and screw 141 may be provided for clamping the head 20 in adjusted position along the way 5, said screw being threaded into said head and serving to clamp the plate coperative therewith to the surface of the table l. It may now be understood that the heel jack post 22 being set in proper vertical adjustment operation of the turn buckle 31, and the screw 82 having been operated by hand wheel 83 to bring the jack post into proper operative relation to the heel pad and wiper carriage for the particular size and style of last in use, the .shoe to be lasted upon as the lever 57 is swung to rock the shaft 55 in a clockwise direction as seen in the drawings, the first movement exerted through the lever arm v69 and spring 71 swings the bell crank lever 73, sliding the nut 79 outward and thus drawing the jack post22 backward bearing` the shoefback into the heel pad for seating therein. At the same time the -j ack post 22 starts to rise under the action of the toe cam 56 on lever 26, at first slowly but at a. gradually accelerated rate as the longer portion of the toe cam comes into vaction and with an increased leverage on the lever 26. It is to be noted that this upward movement of the jack post 22 is of a yielding resilient nature, since the fulcrum backing of the lever 26 at this time is the yielding spring 38, the tension of which is regulable bythe nut 39 so that the first movement of the lever-26 is operative ymainly vto lift the post 24, without tending-to lift the toc pad pusher post. 41. Thus the heel is seated firmly but in a resilient yielding manner in the heel pad by a movement which irst yieldingly presses it back into the padand then holding it therein moves it upward with a gradually increasing component of vertical movement until the upwardly facing Abottom of the shoe is pressed against the heel wipers for the proper action thereof. In this operation the heel part can of course be released or set up to any extent necessary by manipulation of the hand wheel 83 and the turnbuckle 31. Thereupon the hold down shoe 88 is moved forward, the plunger 97 being drawn outward for this purpose and the lio-ld down pressed down upon the toe by movement of the treadle 113. This acting through the relatively light spring 125 with its limited range of yield as permitted by the slot 124, may press down the toe of the shoe and the toe post 21 to some little extent against the tension of spring 47, this being permitted by the clearance of cup -14 so that the stop collar 48 may be some little below its point of engagement with the housing 20. The treadle lever 111`is caught to hold the hold down in this position by the dog 116 engaging the ratchet teeth 117. It will be noted that the spring 125 thus allows the treadle tlever to fall back a little and the hold down still be under proper tension if the dog 116 `fails at `rst lto exactly catch a ratchet tooth. The shoe as thus presse'ddown by the treadle 113 acting on the hold down 88, and against the toe rest-21, is positioned at the wiping level and there held :ina-resilient mannerlby thelocking oftheftreadle 113 as described. Thereupon the toewipers -16 are operated to wipe the upper leatherover the bottom ofthe sole as isusua'l. The toe of the shoe being at this 'time .held yieldingly bythe resiliency of the spring 47 and also of those acting on the hold vdown, the yupper leather may be stretched by suitable tools-as well as by the action ofithe wipers for takingout wrinkles,

etc., without any danger of the'so-called bowing ofthe tip. Thereuponthe shoe ybeing thus held semi-locked yieldingly both at ,its heel and toe portions, a further move- -ment of the rock shaft 55 causes the then acting outer portion of the toe cam 56 to -exert this force principally upon the pusher Vrod 41, which it will be observed is then nearly directly over the then active portion of the cam 56; this results in a direct positive pressure of the pusher post 41 upon the lower end of toe post rod 45 which thus engages the vbottom of recess 44 whereby a relatively powerful .upward pressure is imparted tothe toe post 21 pressing thetoe of the shoe upward against the yielding pressure of hold down 88. This final pressure exerted from the lever 57 raises the shoe up against the inwardly extending wipers, pressing down the wiped over upper leather strongly againstthe shoe bottom and giving a well defined shoulder or needle line; this action'being permitted by the compressing of the relatively stiff spring 135. In the describedoperation it will be noted that as the shoe tip or toe cap is pressed downward by the treadle 113 a `gradually increasing pres- :sure is exerted on .the tip as pressed from above =by the hold down 88 against the toe rest 21 as the pull on the leather during'the toe wiping operation is increased. The construction permitting this principle of operation whereby the toe of the shoe is positioned for wiping by yieldingly depressing the same instead of by elevating it is considered of special value andA importance, both by itself and in conjunction with the further feature permitting a nal movement upward against heavy yielding pressure to press thewiped over surfaces against the wipers. By the co-action of the double pawl 65 on the ratchet bar 63 the parts are held in the position where manually set without appreciable re-action. By the forked formation 96 at the end of the'plunger 97, a

guide passage 142is provided through which these provided to give any desired shape along the edge to fit a straight right or left toe of a shoe. Since the toe rest 21 carried in its mounting 20 is a self contained unit which may be separately adjusted along the ways 5 while preserving whatever operative relation with the pusher post 41:1 by reason of the loose fit of the post 45 in the cup recess 44, it will be seen that this toe rest may be adjusted and set as desired for best results on different kinds and styles of shoes and may be set and adjusted as an independent unit or connected to be moved with the toe wiper carriage as preferred. Also when the toe post mounting 2O is connected to the toe wiper carriage, it may be set variably relative theretoas required by the adjustment of the clamp screw 138 along the slot provided therefor in the depending plate portion 137. It is to be noted that the nut 53 provides an adjustment for the toe rest and that the turn buckle 31 provides avertical adjustment for the heel pin, while the hand wheel 83 provides a horizontal adjustment for the heel pin, all of which adjustments of the toe rest and heel pin may be made while the shoe is in the machine and independent of the operative movements for jacking the shoe; likewise such adjusting means is in convenient position adjacent the shoe where they may be readily reached by the operator while lasting the shoe. By the special construction of the hold down 88 variably controlled through the two springs of diverse strengths in conjunction with the spring pressed toe rest 21, there is provided means to rst tensionally lock the shoe to the toe rest without substantially depressing the same, z'. e., previous to or during the spreading operation, to then depress the toe of the shoe with the toe post 21 down to wiping position into the toe pad, and finally to permit a yielding under heavy tension while the shoe is forced upward against the wipers during the final eXtra pressure operation.

For certain lasting uses it is desirable to provide means for depressing the toe rest 21 to permit the toe of the shoe to be lowered to the wiping level without the cooperative pressure of the hold down 88 from above, z'. e., in certain cases suoli as in operating on McKay process shoes, the hold down from above may not be employed. As shown in F ig. 11 means is provided for manually depressing the toe rest, this consisting in a lateral bracket 143 secured to the lower portion of the toe rest rod il5 and having engaged therewith the upper end of a rod 111, the lower end of which is engaged with a treadle lever 145 having a fulcrum mounting 146 which may be in line with the pivot 112 of the treadle 111, this treadle having a usual presser foot 14T which may be disposed conveniently adjacent the treadle foot 113. By

depressing this treadle the toe rest may be lowered against the tension of spring a7 to bring the shoe to the wiping level, and there after raised as described by the action of the lever 57 for the final pressure. lt is to be especially noted that our'improved mechanism for jacking and locking a shoe in lasting position is operable entirely independent of the movement or actuation of the heel wiper carriage 6; further that means is provided to position and clamp the shoe in the heel pad and also to clamp the saine down on to the toe rest, entirely independent of the heel wiper carriage as well as the toe wiper carriage. Vile also considerl a valuable and important feature of the invention to reside in the described means for positioning and clamping a shoe preparatory to the wiping operations, locking the same in the heel pad and also down on the toe rest by a single operation of one lever. It is to be noted that our invention provides means for jacking a shoe tensionally and holding the same tensionally jacked in operable position both at heel and toe, and also provides means for a fine adjustment of the shoe in relation to the heel wiper along with means to impart additional pressure on toe and heel after the wiping by the movement of a single lever. It will be understood that by setting the pivot connection 25 in a properly selected one of the holes 5/1 in conjunction with adjustment of the screw 82 by hand wheel 83 the heel post may be made to occupy a correct operative position for holding all the various different styles and sizes of lasts to be used; the heel and toe wiper carriages being of course properly adjusted by the hand wheels 10. By the special provision described for closely clamping the heel in the heel pad against any tendency to rise upward during the toe lasting, along with the described means whereby the toe portion of the shoe may be readily adjusted vertically while held under strong tensional clamping, the operator is enabled to estab lish proper wiping planes at both heel and toe, and especially to last the toe portion of the shoe first while the stiifeniug material of the toe boX is in proper temper. It is to be observed that since the toe rest 21 is held up yieldingly by the spring 4T as permitted by the stop 18 far enough so as to position the toe of the shoe some little above wiping plane, the operator by pressing downward upon the treadle 113 may first depress the toe slightly, causing the yielding toe pad to conform to the shape of the toe, at the same time he is drawing the wipers up to the wall or side of the toe with the toe wiper lever 18, with one hand, while using the other hand to draw the leather upward and outward over the wipers by suitable hand piuccrs, spreader or the like. The toe of the shoe is now pressed downward to its predetermined wiping level by further pressure on the treadle 113 and the wipers may be drawn over the edge of the inner sole, which may be held down by a suitable retarder or the like, the retarder being released as the wiper approaches and removed as the wiper reaches over the bottom edges of the toe. The hold down plate 89 being still retained in position, z'. c., in close proximity to the end of the toe, acts as a retaining wall preventing the between substance or upper surplus, from laying down over the lip of a welt shoe, and it may also act as a stop for the wipers. The toe wipers being now drawn closely into the shoulder or channel of the toe, and the surplus or between substance being held nearly at right angles thereto by the hold down, the operator may now wipe the heel portion of the upper over the bottom of the last, and tack the heel seat with the hand tacker or other means. Now by further operation of the lever 57 extra upper pressure is applied equalized between heel and toe, causing a well defined channel at the toe portion upward against the positioned wipers and also attening the heel surface upward against the wipers. The operator may now cause all the wall surfaces of the heel and toe to conform with the lines of the last by additional pressure of the heel and toe pads applied by use of one or both of the hand wheels 10 at the ends of the machine. The operator now slightly releases the upward pressure and returns theheel wipers to operative position for the next shoe. The toe being still held by the hold down, the toe wipers are released and the toe wired. The operator now releases all downward pressure on the toe by operating the trip 120 to release the dog 116, whereupon the shoe may be removed and the parts returned to proper position to receive the next shoe. It is to be observed that by making the pusher rod or post which operates the toe rest 21 in twp parts consisting of the rods 41 and 45 with a lost motion therebetween as provided by the cup recess 44, the movements imparted to the heel post are independent of and disconnected from the toe rest during the jacking operation and while the toe is being depressed to bring it into the wiping plane, but that this lost motion being then taken up, in the final pressure operation, power impulse is transmitted from the lever 57 apportioned between the toe rest and heel post so that both ends of the shoe are pressed against the wipers strongly and to the requisite extent. We are aware that the invention may be embodied in other specific forms as to its various features, and also that certain of said features may be used advantageously apart from others. We therefore desire the present embodiment to be considered as illustrative and not restrictive, reference being had to the appended claims rather than to the 'foregoing description, to indicate the scope of the invention.

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

1. In a lasting machine, a heel jack post, and mechanism for moving said jack post backward and upward te jack a shoe with an initial major component 0f backward movement changing gradually t0 a major component of upward movement for the purpose stated.

2. A lasting machine, comprising heel wiper mechanism equipped with a heel pad, and mechanism for jacking the shoe in operative relation to said wiper mechanism, in-

cluding means for clamping the shoe into said heel pad with a backward andupward movement having initially a major backward component changing gradually t0 a major upward component.

3. A lasting machine, comprising wiper mechanism equipped with a heel pad, and means for clamping a shoe to said pad with a backward and upward movement and under constant resilient pressure as to the backward component of said movement.

4. A lasting machine, comprising wiper mechanism equipped with a heel pad, and means for clamping a shoe to said pad with a backward and upward movement and under constant resilient pressure as to both the backward and upward components of said movement.

5. A lasting machine, comprising wiper mechanism equipped with avheel pad, a heel Y jack post, lever and cam mechanism for raising said jack post, and a connection therefrom operating 0n the jack post laterally to press it backward into the. heel pad as it is lifted.

6. A lasting machine, comprising wiper mechanism equipped with a heel pad, a heel jack post, lever and cam mechanism for raising said jack post, and a resilient connection therefrom Operating 0n the jack post laterally t0 press it backward into the heel pad as it is lifted.

7. A lasting machine, comprising wiper vmechanism equipped with a heel pad, a heel jack post, lever and cam mechanism for raismg said jack post, a resilient connection therefrom operating on the jack post laterally t0 press it backward into the heel pad as it is lifted, and a separate manually operable screw adjustment interposed in said connection for adjusting the jack post laterally.

8. A lasting machine, comprising wiper mechanism equipped with a heel pad, a heel jack post, lever and cam mechanism for raising said jack post, a resilient connection therefrom operating on the ack post laterally to press it backward into the heel pad as it is lifted, and a single manually operable lever connected to effect both said vertical and lateral movements of the j ack post by a single movement of said lever.

9. A lasting machine` comprising` wiper mechanism equipped with a heel pad, a heel jack post, a rock shaft equipped with a manual operating device, means for raising said jack post by the operation of said rock shaft, and a resilient connection from said rock shaft for acting on said jack post laterally to press it back into said heel pad as it is raised by the operation of said rock shaft.

10. A lasting machine, comprising wiper mechanism equipped with a heel pad, a heel jack post, a rock shaft equipped with a manual operating device, means for raising said jack post by the operation of said rock shaft, and a connection for pressing said jack post back into said heel pad as it is raised by said rock shaft including a bell crank lever, a sliding nut operated thereby, and a manually operable screw engaged with said nut and having swiveled connection with said jack post.

11. A lasting machine, comprising heel wiper mechanism, a heel post to hold a shoe in operative relation thereto, and means for operating said heel post consisting in a lever connected thereto adjacent one end and having' a resilient backing at its opposite end, a rock shaft having a member engageable with. said lever at an intermediate point, and means associated with said rock shaft for moving the jack post backward yieldingly as it is elevated.

12. A lasting machine, comprising a heel jack post, and means for moving the same into operative relation with the lasting mechanism consisting in a lever connected adjacent one end thereof to said jack post and guided at its other end with an adjustable resilient backing, and a rock shaft mounted beneath said lever equipped with a, toe cam engageable with an intermediate portion of said lever.

13. A lasting machine, comprising a heel j ack post, and means for moving it in operative relation With lasting mechanism consisting in a lever adjustably connected to said jack post adjacent one end thereof and guided at its other end with an adjustable resilient backing, a rock shaft having a toe cam engageable with an intermediate portion of said lever from beneath, and a resilient connection from said rock shaft to move said jack post laterally as it is moved vertically by said lever.

14. A lasting machine, comprising means for supporting a shoe from beneath the heel and toe thereof respectively, separate devices acting independently on said means for separately positioning the heel and toe portion of the shoe at the wiping level, and connections whereby said heel and toe supporting means are operated simultaneously for the final pressure against the wipers.

l5. A lasting machine, comprising a heel wiper carriage equipped with heel wiper mechanism and a heel pad, a heel jack post, and mechanism operable separately from and independent of the heel wiper carriage for moving said jack post to jack a shoe in operative relation to said wiper mechanism.

16. A lasting machine, comprising wiper mechanism equipped with a heel pad, a heel jack post, an operating lever, and means operable by a single movement of said lever for moving said jack post backward and upward to clamp the shoe in said heel pad.

17. A lasting machine, comprising wiper mechanism, a heel jack post, a yielding toe rest having provision for depressing the same to position the toe at the wiping level, an operating lever, and mechanism for operating both said heel post and toe rest by a single movementof said lever to clamp the shoe in a final pressure relation to said wiper mechanism, including a lost motion connection to the toe rest.

18. A lasting machine, comprising wiper mechanism, a heel post, a yielding toe rest, an operating device, and means for applying a final lasting pressure to said heel post and toe rest apportioned therebetween, by a single movement of said operating device, said means including a lost motion connection to the toe rest.

19. A lasting machine, comprising wiper mechanism, a yieldingly mounted toe rest, resilient means for pressing the toe of the shoe downward to depress said toe rest, and operative mechanism having a connection to press said toe rest upward against said resilient means to exert a final lasting pressure on the shoe.

20. A lasting machine, comprising wipers, a resilient hold down having operating means adapted to engage the toe of the shoe from above and depress the same, a. yielding toe rest opposed to said hold down, and mechanism for clamping the shoe in operative relation to said wipers having a connection to press said toe rest upward against said resilient hold down for the purpose stated.

21. A lasting machine, comprising wiper mechanism, a hold down, operating means therefor having provision for locking the A portion of the shoe, operating means therefor having provision to set in a series of adjusted positions, a connection from said operating means to said hold down including twov spring devices, one permitting limitedr yield with relatively light resistance, and the other permitting further limited yield with relatively heavy resistance, a yieldable toe rest adapted to be depressed by said hold down with power' transmitted through the springs in the connections thereof, and means for jacking the shoe having a connection lto press said toe rest upward against the resistance of the relatively heavy spring in said hold down connection forthe purpose stated.

23. A lasting machine, comprising Wiper mechanism, a hold down having a plunger mounting equipped with yielding means adapted to hold it normally out of operative position with a capability of being readily moved to operative position, a manually operable lever for actuating said hold down having an interposed yielding connection to t-he hold down, and means for clamping the shoe in operative position including a yielding toe rest opposing said hold down, and an operating device for moving the same upward to clamp the toe of the shoe and position the same.

24:. A lasting machine, comprising a toe Wiper carriage having wiper mechanism carried thereby, a hold down pivotally mounted on said toe wiper carriage, and also mounted for sliding retractile movement to .be normally out of operative position, means for operating said hold down, and means engaging the toe of the shoe from beneath to oppose said hold down and hold the shoe positioned and clamped in operative relation to said wiper mechanism.

25. A lasting machine, comprising a toe wiper carriage equipped with wiper mechanism, and means for' holding a shoe in operative relation thereto including a toe rest adjustably mounted on the frame work of the machine, and means for clamping the mounting of said toe rest to said toe wiper carriage or for disconnecting the same at will.

26. A llasting machine, comprising a machine frame work equipped with a horizontal slide way along the top thereof, a toe wiper carriage equipped with wiper mechanism adjustably fitted to said slide way, and a toe rest having a mounting formed as a separate unit also adjustable along said slide way.

27. A lasting machine, comprising a machine frame work equipped with a horizontal slide way along the top thereof, a toe wiper carriage equipped with wiper mechanism adjustably fitted to said slide way, a toe rest having a mounting formed as a separate unit also adjustable along said slide way, and means for adjustably clamping the mounting of said toe rest to said wiper carriage for adjustment thereof or for disconnecting the same at will.

28. A lasting machine, comprising wiper mechanism for operating on the heel and toe portions of a shoe respectively, and means for clamping the shoe-in operative relation thereto, comprising a heel jack post, a toe hold down, a toe rest opposing said hold down, and a single operating device for actuating said jack post and toe rest constructed and arranged to move the jack post backward and upward under resilient tension, and to press said toe post upward with pressure apportioned between said jack post and toe rest.

29. A lasting machine, comprising a machine frame work having a toe wiper carriage adjustably fitted at the top portion thereof, wiper mechanism tiltingly mounted on said carriage, an upright integral with said carriage, and a hold down tiltingly carried thereon.

30. A lasting machine, comprising a machine frame work equipped with a horizontal slide way along the top thereof, a toe wiper carriage equipped with wiper mechanism tiltingly mounted thereon adjustably fitted to said slide way, an upright integral with said carriage, and a hold down pivotally mounted thereon.

3 1. A lasting machine, comprising wiper mechanism, a heel jack post, a toe rest, means for separately moving said toe rest and jack post to jack the shoe, and a single operating device for exerting final pressure on both jack post and toe rest apportioned therebetween, said device having a connection to the toe rest permitting separate depression thereof for the jacking operation but operative to press the toe rest positively upward for the final pressure.

32. A lasting machine, comprising wiper mechanism, means for holding a shoe in op.- erative relation to said wiper mechanism engageable with the shoe adjacent the heel and toe thereof respectively, and operating means having connections to operate said holding means at both heel and toe for clamping the shoe by a single movement thereof, such connection to the toe havingl provision for lost motion before exerting pressure on the toe for the purpose stated.

In testimony whereof we have signed our names to this specification.

WILLIAM E. SCARLETT. CHARLES F. ADAMS.

Copies o! this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. G.

Images