US311850A - Gordon mckay - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

B. P. RICHARDSON LASTING MACHINE.

No. 311,850. Patentedf'ebbb, 1885.

N PETERs" Phnlo-Lilhogriphur. Wwhmglom n. c.

(No Model.) 2 Sheets-Sheet 2 E, P. RICHARDSON.

LASTING MACHINE. No. 311,850. Patented Feb. 3,1885.

UNrrn Srarns' Parent? Fries.

EVERETT P. RICHARDSON, OF LAWRENCE, ASSIGNOR TO THE MOKAY &

THOMPSON CONSOLIDATED LASTING MACHINE ASSOCIATION, OF BOS- TON, MASSACHUSETTS; GORDON MCKAY, OF NEWPORT, RHODE ISLAND,

PRINCIPAL TRUSTEE.

MACHINE.

SPECIFICATION forming part of Letters Patent No 311,850, dated February 3, 1885.

7 Application filed January 3, 1882. Renewed September 2-2, 1884. (X model.)

To all whom, it may concern Be it known that I, EVERETT P. RICHARD- soN, of Lawrence, county of Essex, State of Massachusetts, have invented an Improvement 5 in LastingMachines, of which the following description, in connection with the accompanying drawings, is a specification.

In the machine herein described the action of the gripping jaws or device is substantially that practiced by hand-lasting with nippers,

with, however, the advantage of simultaneously stretching and drawing the edges of the upper about the last from two opposite points,

and from opposite sides of the last toward the center line of the bottom of the last.

My invention consists in a nail-driving le ver directly actuated in one direction by means of a treadle, and in the other direction by means of a spring. 7

My invention also consists in upper gripping jaws or devices to engage and draw the upper by its opposite edges about the last, combined with mechanism at each side of the last, and cooperating with the said jaws or devices, to automatically drive nails or fastenings into the said upper and inner sole to confine them together.

My invention also consists in a novel method of lasting, as will be hereinafter described and claimed.

My invention also includes an inner-sole presser, which is located near the jaws which grasp the upper, and which, interposed between the edge of the upper and inner sole,

5 holds the latter down snugly upon the last while the upper, near the presser, is drawn and nailed, and also in organizations of mechanical elements, as will be hereinafter fully set forth in the claims at the end of this specifi' 4o cation.

Figure 1 represents in side elevation a sufficient portion of a lasting'macliine to illustrate my invention; Fig. 2, a front elevation of Fig. 1; Fig. 3, a section on the dotted linexx, (see Fig. 2;) Fig. 4, a detail to be referred to; Fig. 5, anenlarged view of the rearside of the upper part of one-half of my machine; Fig. 6, a view of Fig. 5 from the right. Figs. 7 and 8 are sectional details taken through the shanks of the jaws and their friction device, and through the lever which, pivoted upon one jaw, actuates the otherjaw to cause the two jaws to attimes move separately and thereafter together; Fig. 9, an enlarged detail of the acting or forward ends of the gripping-jaws to receive the upper; Fig. 10, a detail to be referred to; and Fig. 11, a detail showing the addition to the machine of an inner-sole presser, omitted from the other figures to avoid confusion of parts.

The base or standard 66, of suitable height, has at its upper end a plate, a, which has se cured to it the two standards 12 b, which receive and guide the gripping-jaws and the nail-driving mechanism, to be described. Each standard, its upper gripping devices, and nail or tack driving mechanism being alike, I need to specifically describe but one of them. The standard I) at its upper end has a cross-head, b, in which is a horizontal guideway as shown in Figs. 1, 6, 7, and 8, that receives in it the shanks of the two upper-gripping jaws c d. The shank of jaw d is recessed along one side to receive the shank of jaw c, and is slotted at d (see Fig. 5) to receive through it the friction device e, shown as a round rod at 7 5 tached to the upper end of a spring-arm, 0, connected with the rigid orfixed part b. This friction device, by its action on the shank of jaw c, prevents its being moved by simply the friction against it of the moving jaw d. The jaw c is provided at one side (see Figs. 5 and 8) with a stud, c, which, extended through a slot, 2, in the shank of jaw (1, serves as the fulcrum for the short jaw operating aud carrying lever 0 the lower end of which is en- 8 gaged and moved by the jaw-actuating lever f, pivoted atf. The lever c isprovidedwith an elongated slot, as shown at Fig. 5, at a point between its fulcrum and its free end, and receives in the said slot a stud, (1 secured 0 to the shank of jaw d. The acting front end 3 ofjaw c is made as a hook, with, preferably, a serrated inner face, as shown in Figs. 5 and 9, to engage the upper at the inner side of its edge, or between the upper and the innersole, while the front or acting end 4 of jaw (I, also preferably serrated, is made wedge-shaped, to come against the face or outer side of the edge of the upper and grasp the said edge between the two portions 34, the said parts once closed upon the edges of the upper holding the said usual construction, held on a spool, pivoted to the standard 9, rising from the plate 9.

This string-nail material, in common'use in nailing-machines, passes under a detent or shield, h, also common to other nailing-ma chines. The plate 9 atits front end has on its groove asmallsteel cutting-block, 9 which serves as one member of the cutting device, which severs each nail as it is driven from the next nail back of it in the string of nails. The head of the second nail back of the one last driven is acted upon, and held from moving backward by the detent h. The other member of the cutter is the steel block 70, which forms the main part of the nail-d river, or that part which directly engages the head of the nail. The block 70 has at its upper edge a rib, b, which enters a corresponding groove in a lever attached to the driver-carrier, (herein shown as a lever, if.) This lever is pivoted at k to the plate 9. The block it is held upon the lever somewhat loosely by the screw 7 and the pressure of the spring 18, such loose conneetion permitting the block to move outwardly, during the upward movement of the driven.

. To limit the descent of the lever 7c when thrown down by spring Z to drive a nail, the plate 9 has extended from it a part, m, pro vided at its upper side with a yielding cushion, W, to lessen shock and noise. The spring I at its upper end is connected with the rod 1,- which is pivoted to the stud Z" of the ear Z" of lever and at its lower end the spring I is joined with the adjustable yoke a, fixed upon the rod a secured to the bracket a of the standard a. The lower end of rod Z (shown in section, Fig. 3, and in detail, Fig. 4) has a projection, 8, (see Fig. 4,) which rests upon a shelf or projection, g, of the cross head p ,car ried bythe slide-r'odp, having on it agrooved cross-head, p which receives a roll or crankpin, 12 on the disk 9" 'of an intermittingly-ro- .tating power-shaft having fixed upon it one member, 1, of a. friction or clutch pulley, the other or loose member, r about which the driving-be lt will extend, being under the control of a treadle and intermediate devices, whereby the clutch-pulley may be separated and 70 the movement of the disk and crank be stopped after each complete. revolution, and remain at rest until the clutclrpulley is again engaged by the operator. The lower ends of rods Zare kept upon the shelves 9 of the crosshead p by the inclined positions of the springs Z, and as the cross-head is raised the said rod is lifted to lift the drivenleverslc as in Fig. 5, and strain the springs Z,- but as soon as the cross-head reaches a certain position in its upward movement, at which time the jaws are supposed to have reached their farthest forward positions, with the edges of the upper between them, the ends of the rods are acted upon by the pawlsp, pivoted upon the yoke 12, (the said pawls being then brought into nearly horizontal position,) whichp'ush the said rods from the shelves 9aiid allow the springs Z to act and throw down the arms is" and block is, the latter engaging the head of a string-nail and driv- 9o ing it into the upper and into the inner sole on the last at one side of the jaws, which then grasp and holdit. The block'k in its downward movement against the head of the nail,

as the block arrives opposite the steel edge 9 before referred to, cuts the nail, the body of which has been partially driven,and sev'crsit from the string of nails. The block it, when driving anail, moves the string of nails with it, and thus acts to feed the nail-string forward. IO 3: The wedge s at the upper end of the bar 3'', pivoted to the lever 8 and having its fulcrum at s, as the bar 8 is moved in the direction of the arrow, acts upon the hub of the loose member 1' of the clutch-pulley and causes the :05 members w r to be forced together to rotate the disk r and crank-pin once. The levers".

is acted upon by a spring, 22, (shown only in Fig. 1,) which places the lever and wedges in such position that the clutch-pulley parts are not pressed toward each other with sufficient force to run together. The free end of thelever s", acted upon by the said spring 22, is held up, as shown inFigJl. The link '8, hav

ing a projection, 15. located at one side of it, I 15 and just above thefree end of lever 8 isjoined with a treadle, if, having its fulcrum at t on the treadle-carrying arms t", which have their fulcrum at t, a spring, 1, rigidly connected at one end with the standard a, serving to I20 keep the arms t" lil'ted, as in Figs. 1 and 2, and with the pin 17 ot' the link 8* against the bracket a A spiral spring, a, or it might be a weight, keeps the link pulled in such direction that the projection 15 will catch over the end of lever 5 The pin 16 controls the point to which the lever 8* and the front end of the treadle t may descend. The arms t have connected with them the links or connecting-rods to, which at their upper ends are 1 0 joined with the lower ends of the'jaw-moving levers f, pivoted at f,'the said levers being adapted at their other ends to engage the ends oflevers c.

Referring to Fig. 5, thefront'ends, 3 4, of the horizontally-movable jaws or grippers c d areshown asopened to receive between them the edges of the upper. Both pairs of these jaws atoppo'site sides of the last and upper to be lasted are in like condition, and have like movements given to them simultaneously. The edge of the upper-having been placed between the endsof the said jaws, the operator, with his foot upon the treatle It, will depress or push down the arms t from their full to their'dotted line position, leaving, however, the treadlet on its dotted-line position,which will so actuate the levers f and 0 as to produce the following movements in thejaws 0 d, viz: The leverfwill move the lower end of the lever c to the right, (see Fig. 5,) and cause lever c ,by its action on'the pin or stud d ofthe shank ofjaw d ,to carry the said jaw d forward,

, thejaw 0 being then held by the friction device 6 until its end 4 is made to clamp the edge of the upper firmly between it' and the end 3 of jaw 0. At about this time the lower end of the lever c has beenswung toward the right about its fulcrum 0, connected with the shank ofjaw 0, so that it occupies a position substantially as indicated in dotted lines, Fig. 5, at which time the centers 0, d, and f will be in such line with relation to each other that further movement of leversf and 0 will cause the two jaws c d to be moved forward in unison, they clamping or gripping the upper firmly between their parts 3 4, and drawing and stretching the upper about the last by a direct pull thereon from substantially opposite points and from opposite sides of the last, the said jaws passing over the innersole upon the bottom of the last and carrying with them the edges of the upper,to be automatically nailed or fastenedto the inner sole while so held by thejaws. The driver-leverhavingbeen thrown down to drive astring-nail, as will be described, bythe spring Z, after the action .of the pawls on the rodsl, the arms f are permitted to rise, and the leverf is moved in the opposite direction. At first the jaw dis started by itself, thejaw 0 being held bythe friction device 6, and moved back far enough to release the edge of the upper, after which the two jaws are carried backward together, and the last and upper thereon moved,preferably by hand, far enough to enable the jaws to be again closed upon that part of the edge of the upper to be next clamped and drawn over upon the inner sole,as j ust described. During the time that the jaws are opened or separated and thelast, with the upperon it, is being moved for the next operation, the edges of the upper are kept between thejaws, and jaw c is moved back far enough for the edge of the upper to come in contact with the part 24 of the jaw c.

In Fig. 1 the wedge s is not lifted quite enough to cause the operative engagement of the clutch-pulley, and the crank-pin 12 is substantially in the same horizontal plane as the center of the shaft on which is the disk 7", that carries the crank-pin 12. As the arms t are depressed into the dotted-line position, Fig. 1, to close andmove the jaws forward, the front end of'treadle t is kept elevated by the greater pressure of the heel on' the treadle, so,as to keep rod .9 lifted and the pin 17 against bracket a", andoon-se'quently when arms-f are down, as in dotted lines, the treadle t is as in dotted line. The upper having been drawn over upon the inner sole by the jaws *and to the satisfaction of the operator, he will turn the treadlet, push down its front end, depress the rod 8, and cause its projection'15 to turn the lever s lift the bar and wedges, and force the clutch-pully parts so closely together as to cause the loose but running part r to pick up the fastpart i" and turn the disk r and crank-pin 12 to completely lift the partiallylifted cross-head 10 further strain the'springs Z, push off the links Z, and permit the springs l to operate the driver'lever and drive a nail, after which the motion of disk r will be continued until the cam or thereon strikes the upper endof rod '8, pushes it. outward, and removes projection '15 from above the lever 8 when the disk 1", having made one revolution, will stop, a suitable pawl, 00 engaging a notch in the said disk, as shown in Fig. 2, to hold it I at rest. When I the disk stops by reason of lowering the wedges, the cross-head 19 has been lifted siifliciently to elevate the lever to nearly its highest position from which it started when the clutch-pulleywas engaged, as described. The jaws are closed and moved forward by manual power applied through the treadle by the foot of the operator, and may thus be made to stretch the upper more or less, according to its particular needs and strength; but the nail-driving mechanism is operated at the proper time automatically to drive the nails into the upper. The drivcrlever, being pivoted upon the jaws,always occupies the same position with relation to the upper-grasping portions of the jaws, no matter how far they are moved over, the edgeof the inner sole, which is preferable to employing jaws to pull-the upper forward and place it under a stationary nailtube or post in which a driver is made to reciprocate, as. has been doneinother machines. Theusual'innersole, (see Fig.- 11,) a part of which is shown at'25, and which will be laid in the last 26, all as usual, is apt to become lifted or curled up if very soft; but to avoid this I have attached to the jaw c by screws 27 and 28 a standard, 29, to the upper end of which at 30 I have pivoted the inner-s0le presser 31, the lower end of which is curved, as shown, to form a foot to bear upon the inner sole near its edge and keep it down upon the last, while the end 33 of the said presser bears against the edge of the last,- so as not to move the inner sole laterally.

In this my improved machine the upper is grasped or engaged at two opposite points, and is drawn and stretched about the last at such points and from opposite directions by a direct pull, each jaw operating as do pinchers actuated by hand, and then the upper, immediately when it is grasped, is automatically nailed fast to the inner soler After this the shoe is moved a little, and the jaws again grasp the edges'of the uppernear where they grasped it when they were last moved forward, and again draw such adjacent parts of the upper j about the last from opposite directions, when gradually drawand fit the upper to the curvaa.

the edges of the upper are nailed to the inner soles, as before. The jawsthus operate successively and regularly on'the upper, apart at a time, along the whole sides of the last, each movement of the jaws partially drawing upon andxstretching parts of the upper, which will be more fully stretched at'a subsequent operation of the jaws. In this way I. am enabled, whenstarting, say, from near the toe, to

tures ofthe upper pa'rt of the last.

I am aware thatthe upper has been engaged at opposite sides of the lastby pullers.

' I claim- 1. The two pairs of jaws to grasp the upper between them at its opposite sides' and carry its edges forward simultaneously over theedge of the inner sole and stretch the upper by a direct pu1l,combined with two nail-driving mechanisms,substantially as described,

adapted to automatically drive nails :or fastenings into the upper and inner sole while the edges of the upper are clamped between thesaid. jaws, substantially as set forth.

2. The-two pairs of'movable jaws located opposite each other at opposite sides of the last,-

and their friction devices to hold one mem-:

ber of each pair of jaws' at rest while the other members are being moved forward to grasp or clamp between* them, as described, the edges of the upper at opposite points and at opposite sides of thelast. and means to move the said jaws toward each other, substantially as described, while clamping the'upper between them, combined w'ithtwo drivers and springs toaetuate thent-to drive fastenings into the upper and inner sole while the edges of .the upper aregrasped between the said jaws, and after the upper has been drawn from opposite sides of the last by the saidjaws,

and is'held stretched over thelast, asset forth.

3. The movable jaws cd,'the plate 9, made movable withjaw d, and adapted to guide the string-nails, and the cutting device attachedito the said plate, combined with the driver lever'and block to engage the head of and drive the nail, the spring to actuate the driver-.lever, the rod Zto lift the driver-lever, and

means. substantially as described, to move the.rod and permit the said spring to depress it-and the drive-lever, substantially as set forth. a i

' 4'. The string-nail-guiding plate 9 and its cutting member 9 combined with the springoperated driver audits "block to engage the head of and drive a'nail, and, by its co-operation with the cutting memberg sever the nail being driven by it from'thestring of nails.

5. The jaws cd,combined with'the movable lever 0 pivoted upon jaw c, and connected with and so as tomove the jaw d separately,"

and then both jaws c d together, substantially as described.

6. The jaws c d, the lever cipivoted upon one jaw,and connected with and so. as tomove the other jaw separately, and then both jaws in unison, and the friction device to actupon the jaw 0, combined with means, substantially as described, tooperate the-said lever 0 asand for the purposes set forth. I

7. The two horizontally rcciprocating jaws c d, combined with thedriver-leverpivoted upon and made movable horizontally with the said jaws, todrive a nail in the same'relative' position with relation to the jaws, whatever" may be theirinwardposition. Y

8. The two horizontally-movable jaws c'd,

. theplate g, and the driver-leverpivoted to it, com'binedwith the rest m, adapted to arrest the descent of the driver-lever, substantially as described V 9. The two horizontally-movable jaws, the

string-nail-guiding plate'carried' thereby, and

the detent to prevent backward movement of the-string-nail material, combined with the driver-lever and driver-block to drive the string-nails, all being adapted to reciprocate backward and forward together toward and from the center of the'last, substautially as .and for the purpose described. I Y

10. The arms zit-rods w, leversf, and jaws cd,-moved thereby, substantially as described,

"the treadle it, made movable both with the said arms f and independently ofthem,and with the friction or clutch pulleys, combined with the rod '8 and means, substantially as described,

to engage the said pulley parts at the desired time, substantially as set forth 11. The rod 19 its cross-head 0, provided with projections 8, means, substantially as described, to operate the -cross-head,'links or rods 1, driverlevers, and springsrto actuate them to drive nails, combined with the pawls to remove the said links or rods from the said projection, substantially as described. 7 12. The herein-described method or process of lasting a shoe,which consists in placing the upper on the last provided with an inner sole,

grasping opposite edges of the upper at opposite sides of the last between jaws, drawing the said upper over on the inner sole by a direct pull thereon by the said jaws, which grasp the upper between them, driving nails or fastenings into the edges of the said upper whi1e held clamped between thesaid jaws,

then opening the said jaws, retaining the edges sides and draw and stretch the upper about I string of nails as the nail is being driven, sub- 10 the last, combined with two nail driving meel1- stantially as described. anisms adapted to automatically drive nails I In testimony whereofIhnve signed. my name or fastenings to secure the upper to the inner to this specification in presence of two subsole, substantially as described. scribing witnesses.

14. The string-nail guide 9 and its cutting EVERETT P. RICHARDSON.

member 95, combined with a spring-operated Vitnesses: driver adapted to engage the head oi'and drive a nail and assist in severing the nail from the G. W. GREGORY, W. H. SIGSTON.

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