US867469A - Lasting-machine. - Google Patents

Description

Tm. 857.469. PATBNTED OUT. 1, 1907.

W. A. BOND. LASTING MAGHINE.

APPLIQAIIGH FILED 123.23, 1906.

a SHEETS-SHEET 1.

- No;--867,469. PATENTED 00:11.1, i907.

" W. A. BOND.

LASTING- MACHINE.

APELIUATEON FILED FEB. 23, 1906.

3 SHEEN-SHEET 2. 2;

is g

' portion of the upper at a time andmanipulating it into 'per'and place it 'or other fastening means employed for holding the 'up.-.

; turned. during sipp g e upper-and 561 towa'rd theother side of the'median line i automatic; ,l

" lement-L ,v- 1Practice-theyieldingelement is com-{"- i-imt, war eathe eit e .WILI J AM A. BOND, LYNN-FIELD,

" TED STATES PATENT OFFICE;

MASSACHUSETTS, ASSIGNOR TO UNITED SHOE naonmsar' COMPANY, or PATERSQN', NEW'JERSEY, A CORPORATION; OF NEW JERSEY.

Specification of Letters Patent.

Lamina-MACHINE.

I Patented 1, 1907.

Application filed February 23, 1906. seriaino' sozas i.

To it moytoncre:

- Be it that I; WILLIAM A BOND, a citizen of I United States, residing at LYhDfiQId l the county of Ess'exand' Commonwealth of Massachusetts, have 5 invented certain-improvements "in' Lasting-Machines,

p description "in connection with tli efacoompanyingdrawing's, is a s'p'ecification, like reference characters on the drawings indicating like partsin the several figures. o 1

chines-knownas the Hand method lasting machine This invention felates to that type. of lasting ma- Qanexample of which is shown in United States Let- 5 rm Patent No 554,744, granted June 15, 1897. "As is fully explained in that patent, this type of machine comprises a single pair of grippers for engaging a small lasted position, where it is secured before the next operation of the machine.

The lasting operation as a whole is carried out proj-different portions oitheupper. Actuatin'g'mechangressively by repeated operations of the-machine on ism is prov ded ior moving the grippers into'positin' to engage. the upper, closing them, lifting them'to "stretch or updraw the upper, and; moving them over the last bottom and downwardly to overdraw the upper -tothe inner'sole, and finally for releasing the upper.

a pathparallel {the toe portionof the upper of a shoe, however, and;

crimp the upperfdr-laying smoothly the surplus stock:

.L oneside of the inedianline of the machine to position; gripping theiipper, and after they havebeen for plaiting thef u pper, before it issecured in place; Preferably alsothe grippers are theinlateral move'ment whereby the portion of upperjoeing plaitd is-twisted, because by 5:45 so. tdoing a sm0othe1; and more lolding oi the surplus upper'material is obtained,

satisfactory plaiting or v The lateral movement of the grippersto on'eside ofthe median lineof the machine into position for;

' then in the reverse direction "ally nflected 54h the operation; of the machine I l as herein shown, a yield- 3 by mechanism comprising,

in position to be secured by the tacks such violence 1 s to break the otherwise injure themachines- It will be understood r ppi t upp upper material'during the movement of the grippers for plaiting the upper, and when the grippers are opened to release the upper. the reaction of the yielding I element mor ies 'the grippers laterally beyond the posi: tion towhich they were intended to :bemoved' The amountof his excessive movement varies'according ,to the exte'nt to which the'yielding elementhas'been 4 compressed during the plaiting of the uppeR-and sometimes, .as' when the, upper being lasted is heavy or inelastic,'-the.grippe'rsare thus moved laterally with;

grippers mechanism or that ,in the'operation-of the machine the grippers are moved rapidly, it being customary to run the machine at the rate of about 150 cycles perminute, and it is r sometimes found that the inertia of'the grippers causes f them to move laterally farther than they are intended to 'do'on their return to gripping position. The grippers thus frequently, grip the upper at-different distances from the median linecithe machine so thatthe plaits formed are not 'soeven' as'is desirable. This 'difiicultyfis particularly liable to occur: at times when the reaction of the yielding element increases the lat-I.

eral throw for the grippers-in'th direction of their plait-- ing movement, as described above. I

Heretofore the lateral movement which. the actuating mechanism has been arranged toimpart to the gripers has beenuniform'or substantially uniform in ex-- tent on each side of the median line, the grippers mov ing approximately as-far beyond the median line of the machinein one direction for placing the upper as they moved beyond the median line in the other direction for most perfect fitting of the upper'to the last is obtained and betterplaiting of-the'overdrawn upper is secured by moving the grippers laterally from a gripping posi- ,I have discovered, however, that in lasting Goodyear .or welt shoes the smoothest and lateral movement at or near the median line of the machine the final drawing'of the upper into lasted'posh tion islefiected by -a strain substantially at right angles to the of the last. In lasting Goodyear shoes I prefer tonontinue the turning movement of the grippers after the lateral movemeht vhas been arrested. This continued turning of the grippers twists the portion-oi upper held by them and tightens it at the edge remote from the previously lasted portion of upper just before it is fastened to the innersole of the shoe.

providedmeans for regulating the lateral movementof For-the purpose of overcoming the difliicultieswhich. lhaye beenmentioned and of securing the proper move'- -ments of, the grippers for lasting Goodyear shoes I have V scription.

ent conditions encountered in-theuse of the machine.

held by the grippers is given a final Thus the limiting means may be employed forpreventing excessive lateral movement of the grippers, after they hays released the upper, whether it'is caused by the reactionof the yielding element if a yielding element is used, or by the inertia of the rapidly moving mechanism or any other cause. The limiting means may also,

be'employed for stopping the lateral movement of the grippers at any desired point with relation to the median lineof the machine independently of'the' normal length of stroke of the yielding actuating mechanism. The limiting means will preferably be arranged to arrest the lateral movement of the grippers-while the turning movement is continued, .whereby the portion ofupper twist before it is se cured in lasted position.

One .of the jadvantag'es'of the inventi'on when the limiting means is used 'incombination with actuating mechanism comprisinglajyilding element isthat the tension of said yieldingjfelementmay be made sufii cient, if'desiired 'to insurethelateralmovement of the grippers to the desired positionat each operation ofthe.

machine, the limiting means always stopping said lat= eral movement: at the 'sainefpoint so that perfect uniformity in theiplaits of theupper may be secured. By

this means-also the strainapplied to the upper for n ing it laterallymay beaccurately regulated as thelimiting means arrests the pull' on the upper, thus preventing an increase of strain during the completion of the stroke of the actuating mechanism; Preferably also limiting means is provided for" regulating the extent of lateral movement of the grippers toward gripping position whereby overthrow of thegrippers in this direction, produced by their inertia or any other cause, is pre-- vented and the grippers always are closed upon the stock at the same point with relation to the median line of the machine. These and other features of the invention, including certaindetails of construction and combinations of parts,-will be hereinafter. described and will be pointed out in the claims at the end-of the de- Figure 1 is a front elevation of the upper portion of a lasting machine equipped with the present invention andadjusted for plaiting the shoe upper, the grippers beingshown position for gripping the stock: Fig. 2 is a detail view of the'mechanism for laterally aving and turning the grippers, the grippers being shown in full lines inthe position occupied by thm when the plait has been formed and before the stockis released-in lasting a McKay shoe. The dotted line shows the. further position to which'the grippers tend to move because of the .reactionof the spring through Whichthey are actuated'laterally. Fig. 3 is a view similar to Fig. 2 and shows the position of thegrip p'erswheii the plait has been formed whilebperatingflupona Goodyear shoe which-theoverworked iipper is secured in position by a wire binder; 4 '5 are paths followed by the grippers in their lateral and turned movement while lasting McKay and Goodyear shoes respectively. Fig. 6 is 'a perspective view of the grippers operating mechanism.-

. relative movement to grip and release the stock, are

mounted upon shanks or bars 13 and 15, the bar 13 being tubular and receiving the-bar 15, which is movable longitudinally with relation thereto for closing and opening the grippers; The bar 13 is provided on its upper end with a spherical head 17, which is se- "curedto the-front end of the lever 18, by means of which the grippers are moved up and down, said lever 18 being pivoted at 19 and connected through a plate Birth a .cam 280 .on the shaft D. The grippers are guided in their vertical movements through a passage in the rear side ofa carrier 30, formed at its lower end as a horizontal sleeve 22, the end portions of which are received in bearings-31 formed on the front end of a barwhich is arranged to be actuated iormovingthe grippers toward the head of the machine into position for gripping the portion of the upper being lasted and away from the head of the machine for over-drawing the 'upper. -In theupper end of the. carrier 30is formed a boss 47 which receives the screw-threaded tubular nut 48. Mounted in the nut 48 is a spindle 44, the lower .end-of whichrests QIFBL bar or lever '43, which is normally supported at its opposite ends by studs 41 and 42 on the carrier. The spindle 44 is pressed downwardly by a spring 49 confined within the tubular nut 48 arid acting on a collar formed on the spindle near its lower end. The pressure of the spindle upon the bar 43 may be regulated by adjusting the nut in the lug 47. .Gentrally arranged below the bar 43 is a fulcrum pin 46, upon which is mounted a triangular lever 45, the upper arms of thelever bearing normally againstthe lower face of the bar 43.- The lower arin of the triangular lever has pivotal connection at 52 105 with a slide 51. mounted for longitudinal movement in the sleeve 22. It will now be understood tliat the pressure of the spring 49 will normally hold'the bar 43, the triangular. lever 45, and the slide 51 in the ppsition shown in l, the pivotal connection 52 between the triangularlever and the slidebeing in alincment with the gripper bar 13. A movement of theslide 51 longitudinally in one direction will be transmitted through the pivotal connection 52', triangular lever 45, bar 43,

and spring 49; to the carrier 30 for yicldingly moving the grippers laterally toward one side of the median line of. the machine. A movement of the slide 51 in the reverse direction will similarly be transmitted to thecarrier 30 for moving the grippers toward the other side oithe median'line of the machine. As herein shown, the slide 51 is actuated for moving the grippers laterally by a segment-shaped block 63 adjustably mounted'in a suitably actuate d crank arm 57, the movement being transmitted to the slide through links X -and55, the latter of which is connected tothe slide by a universal joint. Y v p The link X above-mentioned has connection with a lever X, which is fulcrumcd at X to the machine frame. The upper end of this lever is connected by a datic views illustrating approximately the X to a rack bar X longitudinally movable in a guideway 'for'med iorit in the front end of the lever 18.

tion between the lever X and the, link' X may be a yielding connection, as shown in 2; on machines used for certainclasses of work.

It will be understood'that the lateral movement oi the grippers is yieldingly effected in both directions because this movement is transmitted to the grippers through the spring 49. In the Operation of lasting the toe portion of McKay shoes'the-grippers are movedlat erally to one'side of their central position, which usually is i'n'the median line of the machine-and is so designated herein, into gripping position and they are closedby a downward movement of the bar 15 effected through the lever 28 actuated by cam onv the shaft D as shown ig. 6. The grippers are then lifted for updrawingthe upper and moved. away from the machine head for overdrawing the upper. After these latter movements have been partially or completely ef- ,lar 'lever -will turn: upon the carrier 30against the iected'the grippers-are laterally moved and turned from the lateral and angular position shown iu Fig 1: across the median line of the machine to theposition shown in Fig. .Z'iorjplaitirlg the upper. This lateral movement is, it 'will be understood -eiiected yieldingly through the spring 495 and if as is usual theamplitude" of the lateral movement which the actuating mechanism isarrang ed to produ'ceis greater than the elasticity of the stock will permit the grippers to have; the triangupressure of the. 49, the parts thusassumingsuch relative positions as are shown in full lines in 2,

supposing that the -lateral, plaiting movement proceeds I from left to right. As soon as the grippers have been opened to release the upper, 'which occnrs when the head of tlie' lever. 28 is rocked upwardly with relation,

to the lever l8, the resistance. to the completionoi the lateral movement of the grippers-is withdrawn and the compress'ed spring 49 causes thism'ovement-to be completed. The iorce exerted by the spring-in thus'moving the grippers is sufficient; in case the tensionof the sleeve,

spring is considerable, to force the grippers past the normal limit of their lateral movement. It not infrequently happens that in this excessive movement of the grippers the bar 13 strikes an'adjacentportion of the machine, as,.for example, the bracket X in Fig. l, thus sometimes injuringand even causing breakage of parts. This diilicult-y is overcomein accordancewith this invention by providing means for limiting the lateral movement of the grippers. As herein shown, this means comprises a collar 25 mounted upon the sleeve. 22 in position to engage one of the bearings 31 in which the sleeve slides when the grippers are 'moved' late r-- ally; The collar is preferably adjustable upon the. and as hereinshown is formed as a band havingscrewthreaded engagement with the sleeve and providedviith 5 bindingscreW-Zr'jor locking it inadjusted 3 position on thesleeve. 1 By properly the-lint:

" the limit of their normal lateral stroke thus preventing spring 49; InlastingMcKay shoes'it is the custom to andphitithiit.'Bide oi'the toe'portion oi the shoe and then, commencing at the center, oto pl'z'zit the op fmachine is: shown as plaiting from the center of the toe toward the leithand side" and the means,'25, for limand arranged toengagewith the outer side 6r the adjacentbearing' 31. For limitingtliejmovementwheh' the .to engage the inner side oigtli'e bearing 31. The ma' chine is operated rapidly, the'grippers usuallfrnoving causesthe grippers to-engage the-upper at different distwo collars 25, and 26 the lateral movementin each di rectionis positively limited .so that 'there'isrno danger oi the grippers'closing upon'the stockin the wrong position, or of the reaction of the spring 49 throwing them so far laterally asto' engage the adjacent parts of the machine. i

In the operation of lasting Goodyear shoes it is the .piesent practice to use a binder'of wire or other continuous material instead of tacks for securing the toe portion of the-upper in overworked position. The free end of the wire issecured to a tack at o'neside of the shoe and drawn under tension from a reel and presses per into the angle of union between the feather edge andshoulder of the innersole as the lasting'proceeds; I" have found that, when the grippers'are permitted to side of the; machine as it'is desired let them to move last, and l have discovered that this difiiculty may be avoided by stopping the lateral movement of the grippers at or about the median line of the machine :so that thestrain for finally overlaying the'upper upon the innersole isapproximately at right angles to the edge adjust the limiting means 25 upon the sleeve 22 of a movement of the grippers in the direction for plaiting the upper at. approximately the time the grippers reach the grippers" always will be moved to such Iplaiting' isdone 'rever'se movements of the'grippers a second collar 26-is appliedto the sleeve22 in p'o sition at the rate of. about reciprocationsper minute, and their inertia sometimes canses them to gogtoo. far as they move laterally toward gripping position. This tan ces from themedian lined the machine andlpro and holds the successively overworked portions of upmove laterally for plaiting the upper as far toward one of the last. For accomplishing this end I preferably viting means the lateral movement of the grippers can ,bestopped in any desired position-as, for example, a

the} excessive movement due to the reactionoi the- I begin the plai tingzoftheupp er at the center of the toe posite sideoi the toeoithe shoe; In Figs. 1 and 2 the 'iting the excessive "lateral movement or overthrow (5r the grippers is located on the outer endoi the sleeve 22 duces irregular plaiting of the upper. Bymeansoithe"910 toward the other side for gripping the'upper, wrinkles are liable to be formed'in-the' upper at the edge of thewelt lasting machine so that it will arrest the lateral chi. T I no as compared wlth the movement on the other, I mg median um mm macmw limitingndeans arrests the-movement oi'the grippersand does not go on increasing while the, actuating mechanism completesits stroke. By properly adjusting the two steps 25 and 26 the extent of movement ofthe grippers on one side of the median line of new:

side can be regulated as desired [prefer to permit the turning movement of the grippers to" continueafter:

their lateral movement'has been arrested, whereby the upper is given a final twisting movem'ent'with the grippers substantially atthe median lineof the machine. This final twisting of the portion of upper held by the grippers just before-it is secured by the binding Wire lays the Plait over upon the plait last formed and also tightens it "at the edge adjacent to the unlasted part of the upper by pulling it snugly over the edge of the last. It isfound in practice that that edge'ofthe plait adjacent the unlasted portion of the upper tends to slip back slightly afterthe plait isreleased by the grippers and the final twisting ofthe plait counter-leak ances this tendency of the upper to slip back.

It will of course be. understood-that the particular means or device for limiting the lateral movement of the nrippers' may be of any suitable form or construetion and may be applied to the grippers or the grippers actuating mechanism at any desired place, the'inventi'on not being limited tothe. particular. construction herein described for obtaining the useful results pointed out. Also it is obvious'that the ,invention is not limited to use Withthe particular grippersactuating' mechanism with which it is herein described as associated. 7

Having explained the nature of my invention and described one form oi meghanism embodying the same, '1 claim as new and desire tys ecure by Letters Patent of the United States: v

1. In a machine for workinga'n upper over a last, the

combination with grippers, of 'aetuating mechanism arranged for moving the grippers laterally to 'plait the.

,upper, and means for limiting the lateral-movement of ranged for moving the grippers laterally to plalt the upper, and menus for limiting tbe latcral movement of. the grippers, said means being adjustable to vary the extent of lateral movement which the grippers mayhave imparted to them.

.3. In a machine for working an upperover a last, the. combination with grippers and means for operating them to grip and release the upper, of actuating mechanism comprising a yielding elementarranged to move the grlppcrs from one side of the machine across the -media1n line or the machine to the opposite side thereof for plaiting the upper, and meansfor preventing ,overthrow of the after the grippers have released the stock.

4. In a machine for Working on upper oven a last, the combination with grippers, of actuating mechanism, comprising :1 yielding element, arranged for moving the grippers laterally toward and from gripping position for the purpose of-plaiting the upper, and means for limiting the lateral movement of the grippers in each direction.

sons-so 5. In n. machine for-working an upper over a last, the combination with grippers, ofnctuating mechanism comprising a yielding element arranged to move the grippers from one side of the machine across the mcdlun line of the machine toxthe opposite side thcrcor for plriitlng the upper, and means arrnngcdIto be positioned ior stopping -,tlziolslteral,movemen t of the grippovs approximately at ,v In a machine for Working on upper over :1 last, the

combination with grippers, of actuatingmccbunlsm for moving the grippers laterally and turning them, and means "for-varying the relative extents of said lateral and turning movements.

7. In a machine for working on upper over a. lost, the combinationwitn grippers, of actuating mechanism for moving the grippers lntcrally and turning them, and moans for arresting one of said movements while the other move ment continues.

8. In a machine for-working an upper over a. lost, the combination with grippers; of actuating mechanism for moviin, the grippers laterally and turning them, and means for arresting the lateral movement while the turning movement continues.

9. In a machine for working on upper over a last, the combination with. grippers, of actuating mechanism limmoving the grippers laterally to pluil; the upper, and means for arresting the lateral movement, said machine having provision for turning the grippers alter the lateral movement has been arrested.

10. In a machine for working on upper over a last, the

combination with grippers, of actuating, mechanism therefor havingn predgterminsd stroke, n yielding connection arranged between the actuating mechanism and the grippers andhuving sufilcicnt strepgth to insure the movement of the grippers to a desired position, and means for preventing tbe movement oi tlrc grippers beyond s'uld (10 siredpositlon.

11. ln a'mnchinc for worhing'sn'uppcr over a lust..- the combination with grippers, menus for actuating the grip pers to engage the upper and nieclmnism adapted to impart yieldingly to the grippers wbfle' they have hold of the stock a movement in excess of the distance it ls dcslrcd to pull' the stock, of means for arresting the movement of the grippers thereby regulating the pulling strain on the stock.

12. In a machine for working an upper over a last, the

combination with grippers, of a carrier therefor and :lctuuting mechanism for moving the grippers laterally, .s'uid actuating mechanism comprising a slide mounted for movement with relation to said carrier, :1 yielding connection between the slidennd the carrier, and menus [or limiting the movement olf'the grippers independently of the movement of the slide. 13. In a machine for working on upper ovcr u lmsl, the combination of grippers movable laterally to form n plult in the upper, and means to limit the lateral movement, of zncans'for :ictuatlng the grippers to tighten the plult at its edge adjacent to the unlusted portion of upper after the lateral movement has been discontinued.

14. In a lasting machine, the combination with grlppers and actuating mechanism therefor including menus for yieldingly moving the grippers laterally .to pluit the upper, of mcans comprising cooperating rclnl'lvcly adjustable stop members one of which is movable with the grippers for limiting the lateral movement of the grippers.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILLIAM A. BOND.

Witnesses:

' Wsmnax G. OGDEN,

Aurrron L. Iicssnnn.

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