US1032881A - Work-support. - Google Patents

Description

A. GHAPLlN L J. J. MARSH. WORK SUPPORT. APPLICATION FILED PEB.20, 1911.

LSy Patented July 16, 1912.

ALFRED CHAPLIN AND JOSEPH JAMES MARSH, '0F IIECESTE,

TO 'UNTED SHOE 'MACHINERY COMEANY, F A'lERS-N, fura RATION OF NEW JERSEY.

Specification of mettere 'acent.

wonicsureon'r.

fP-atenteol July t6, i912.

Application filed February 2D, 1911. Serial No; 609,626.

To all whom it may concern:

Be it known that we, and JOSEPH J. MARSH, subjects of the King of England, residing at Leicester, Leicestershire, England, have invented certain :tur provements in ll'rork-Supportdof whichthe following description, in connection with the accompanying drawings, is a specifica- .tion, like reference characters on the draw ings indicating like vparts in the several figures.

Thisv invention relates to work supports and is hereinvshown as embodied in a- Work support which is especially adapted for use with machines for-inserting nails, slugs or other fastenings into the heels or soles of boots or shoes. It- Will be understood, however, that many features of theinvent-.ion may be en'ibodied to advantage in Work supports of other types.

Boots and shoes are slugged or nailed both on the last and otl' the last, the last being usually supported, in the one case,

' by a jack and the shoe being usually supi is unsupported, and

ported, inthe other case, by a horn. When firm-localized support. is desired at the point where the Anail or other fastening is to he inserted, a horn is preferably employed, particularly if the nails are to be clenched upon lthe inside of the shoe, as for example when nailing on the outsole. I'n eitherl case, however, when ordinary work supports are employed, the sole or heel of the shoe is 'only supported against those operations which are performed upon parts thereof lying over the interiorI of the shoe. The projecting margin of the sole, in such cases, if; as in quilting or loading operations, it is desired to insert slugs or other protectors close to or even in this margin, difficulty is usually encountered in properly performing` the inserting operation, and moreover there is' danger of breaking down the margin.

An object of the invention is to-irnprove the construction of avorlt supports by providing conuenient and efficientineans for supporting the projecting margin of a shoe sole.

y In particu-lar, the invention is designed to ar'ord a bet-ter support for a boot .or shoe.'

while the nails or the likev are being driven therein close to the edge of the sole. For this purpose, according to this invention, an auxiliary ,support presented, in addi- Ammnn fCHArLIN Y tion to the usual horn or other support which is located Within the boot or shoe, the auxiliary support being adapted to engage and support the projecting margin of the sole of the boot or shoe, and, for ethis purpose, preferably enter within the crease between the ma in and .the upper.

The inside support the outside support, which may be sometimes hereinafter re-i ferred to as the Welt supporu may be relatively adjust-able in a direction toward and away from .the surface of the work so as to compensate for differencesL in thickness or for irregularlties of the surface in the parts of the work engaged by the said supports respectively. rllhis is aI very important practical feature of the invention.

Another important feature of the'inveny tion 1s the arrangement of the parts whereby the above-mentioned relativeadjustment of the supports Vis effected automatically. To this end in the preferred embodiment of the invention an equalizing device is so ar'- ranged that a constant proportion of the total pressure .shall he applied by the horn and the' Welt support respectively, notwithstanding the variations in thickness of succeeding soles at the points where the work is supported.

As above suggested an important object ,of the invention is to provide a work support which Awill afford a proper support for the shoe when operations arc being performed upon the sole close to the edge thereof.

In order that the work supportI may be adjusted to bring its supporting surface into such relation to the .path of movement of Athe `shoe past the operating mechanism that the opt-nations may be perfor-med at the desired .distance freni the sole edge, ano-ther feature of the invention is the provision of novel and convenient means for effecting' va relative adjustment of the Working surface the horn or other Work support `with re- Y which t-he operation 1.

speot to the point at K performed upon the shoe, so that the .oper

tion `may 4be performed closer toor farther from `the edge of the Work, as desired, ln

1,032 ser matic separation of the inside and outside supports when the work support .is moved into Work receiving position, thereby, in the illustrated embodiment of the invention, leaving Atree access to the horn for the removal of the shoe and for placing another shoe upon the horn.

The invention also contemplates the pro- Vvision of means `lor holding the 'Welt support in an inoperative positionivhen it not required by .the nature of the `Work or by the location ot the Work with respect to the mechanism which operates thereon.

@ther features and objects of the invention Will be apparent when the following description and claims are considered in connection with the accompanying drawings, in which, f

figure 1 is a side elevation of a portion of' a nailing machine, showing the invention applied thereto; Fig. 2 is-a view similar to aportion ci` Fig. 1, but showing the parts in a different operative relationship, some parts being shown in section, and Fig. 3 is a plan of a part of the machine illustrated in Figs. 1 and this view illustrating especially the means for adjusting the horn in and out With respect to the machine.

The work support shown in the drawings comprises a horn 2, of substantially usual construction, the born 2 being adapted to enter the boot orshoe and to support at the point of operation the sole upon Which the machine is operating. As is usual in this type of machines, the horn is caused to` clamp the Work against. a work abutment 4, surrounding,Jr the point of operation, by means of a spring, not herein shown, or by connections with a cam upon the main shaft, also not shgwn. v

" The horn 2 is clamped 1n a bracket 6 which has a hub S rotatable about an eccentric bushing lO which is mounted upon the horn shaft orpost 12. A sleeve 14e is mounted upon the post 12 below the bushing 10 and is provided With a flange 16 ivhich supports the bushing 10 and the hub 8' of the bracket 6.` The sleeve 14 and the bushing 10 are arranged to slide upon the post l2 to an extentlimited by the pin and slot coninectioxi/ hereinafter described. By turning the eccentric bushing 10 the bracket 6 and with it the horn 2 may be adjusted in and out with respect to the machine. To malntain the bushing 10 in its adjusted position,v

.any convenient locking or retaining device may be employed, that herein illustrated comprising a spring-pressed plunger 18 arranged in a recess 20 in the horn post, said plunger having a conc-shaped end that is adapted to engage one or anotherof a series of grooves in the inner surface of the bushing l0.

Upon pin or stud 22 secured to the horn post l2 is fulcrumed an equalizing lever 24 AWhich at one end is pivotally connected to an arm 26- that` carries the Welt support 28, shaped to' fit into the crease of the boot or shoe and thus ailord a support for the margin or edge of the sole. The other end of the equalizing .lever 24 is pivotally connected to a bracket or extension 30 of the sleeve le hereinabove referred to. The sleeve 14 is provided with a clearance slot. 232, through which the pin or stud 22 extends. ihis slotpermits a relative movement of the sleeve 11i and the horn post l2, so that when the horn 2 is either raised or lowered relatively to the Welt support the sleeve 14 Will be correspondingly moved, and by reason of its connections With the equalizing lever 24 will effect a movement of the Welt support 28 ina direction opposite to that in which the horn 2 is moved. The connection between the equalizing lever 24 and the bracket 30 is such as to permit of a lateral movement of the end of the lever 2 4 to compensate for the arcual 'movement of this end of the lever when turning on the pin22. This connection may comprise a lock 34 arranged to slide in a slot 36 in/v' vrlCo cause the welt support 28 to be kept in 'the crease of the shoe1 the arm 26 1s` drawn normally toward the horn by a spring 42 which at one end is secured to theV arm 26 and at its other end to the bracket 30.

Attimes it may be desirable to use the horn without the welt support'7 as for example, when operating upon part-s of the sole Y remote from the edge. Provision is therefore made for holding the welt support out of operative relation to the horn at such times. In the illustrated construction ahlink or catch 44 is provided for, this purpose, the catch 44 being ,pivoted upon the pin or stud '22.aud being provided with a hook-shaped end adapted to hook over a pin 4-6- upona downward extension t8 of the arm 26'. This downward extension of the arm 2,6 has a further purpose which will now be set Jforth.

Tn the machine heroin illustrated, as is customary `with this type ot' machines, provision is made for lowering the work support into Work receiving position. When the work support is moved into Work clampipp, position by a Spring, a treadle is usually provided for depressing the work support against the tension of its spring. To facili-y tate "the removal of the work from the work support when in work receiving position, and also to facilitate the placing of another piece of work upon the work support, a feature .dit the invention consists in the provi- ;sio'n of means for automatically separating the horn and welt support" as the horn is moved into work receivingposition. To this end, in the illustrated construction, the downward extension 48 of the arm 26 is provided with a bowl or runner 50 which is adapted'to engage a cam track 52 upon a bracket 54 adjustably confined upon the frame 56 of the machine by set screws 58 entering'a slot 60 in said bracket.

When the horn 2'is lowered into its work receiving position, the welt support 28 by reason of its connections with the horn post 12 will also be lowered and the runner 50 will engage the ycam track 52 upon the bracket 54. Continued depression of 'the horn 2 will cause the runner 50 to travel along the cam track, thus causing the arm 26 to 'turn about its.pivotalconnection 62 with the lever 24 into the dotted line -position shown in Fig. 1.v This leaves unobstructed access to the horn for removal of the work or for placing new work upon it.

The operation of the machine so far as the present invention is concerned willno doubt be understood from the foregoing description, but it may be briefly restated as follows: When the horn post l2 is 4raised to bring the work into position to be operated upon, the pin or stud 22 secured to said post will carry lupward the equalizing lever 24 -and with it the welt support 28 and the horn 2'until these partsbring lthe work into contact with thework abutment 4 ony the machine If the horn 2 and-the, welt support 28 are in engagement with. the respective portions of the work above them at the time'the upper surface or' the work comes into contact with the work abutment, no relative movement of these parts will take place. It, however, only one' of these -partsis in engagement with the work at the time the work abutment. is engaged by the upper surface of the work, vthe part that is in contact with the work will have its upward motion arrested by the engagement of' the work by the work abutment, and the further movement of the horn post 12, will then cause the equalizing lever 24. to be turned on its pin or stud 22, thus'movi-ng` into engagement with the under side ofthe work that one of the. two

parts or supports which `was not in engagement with the work at vthe time the work abutment was engaged by the upper surface of the work. The upward movement ot' the horn post 12 will continue until each of the ltwo supports brings to bear upon the work the determined proportion ofl clamping pressure which has been allotted t it by rea- Sonof the relative lengths of the armsof the equalizing lever 24. For example, let it be assumed that the two supports are level and that the part of the work engaged by the horn 2 is of greater thickness than the part engaged by the welt support 28. In this case, in the upward movement of the post 1.2 the portion oit the work above the horn will first contact with the work abutment and the further movement of the horn will thus be prevented. The post l2 will, however, continue to move upward and through the pin or stud 22 carried by it will turn the equalizing lever'2el so that the welt support 2B will continue .to move upward until it clamps the part of the work engaged by it against the work abut-ment with' a pressure which bears a definite proportional relationy to that exerted by the horn. The action will be reversed if the thicker part of the work is above the welt support.. lf desired, the machine may be adapted to deal with any class or work by changing the proportional ,relation of the two arms of' the equalizlng lever.

By adjusting the eccentric bushing l0, the

working surface of the horn 2 may be moved toward or away `from the path in which the nails are driven for the purpose of varying the position in the shoe in which the nails are inserted. As thearm 26 which carries the welt support lis drawn toward the horn by the spring 42, the welt support 28 will always be maintained in the crease between the upper and the welt, or between the upper and the projecting margin of the sole, and yet will be allowed to move outwardly `if an' increased width of mate-rial 4should come between the horn and thewelt Support It will be noted that the relative adjustment of the horn and the margin supporting means to accommodate variations in the thickness of the material interposed between them, as well as `the relative adjustment of these parts to accommodate differences in the thicknesses of the respective parts of the shoe interposed hetweenthem and the work abutment, 'is effected automatically, both of these 'adjustments taking place during the movement of the work support from work receiving position to work clamping position. A r Having described our invention, what we claim as new and desire to secure by Letters Patentot the United States is:-l j

l. In a machine of the class dex-ieribed,`

Vmeans' for supporting a shoe sole upon the inside of the shoe, means for' supporting the projecting marginof the sole upon the outside of theshoe, and equalizing meansv connecting said outside and inside support-.

supports.

2. In a machine. for 'operating"iiponiscles,l

meansA for supporting the sole of a shoe close to the inside lface et the upper, means for supporting the adjacentmarginal portion ot' the sole close to the outside face of the upper, each of said supporting means being adapted-to supporbthe sole against the force of the operations thereon, and means for yieldingly maintaining said two supporting means, in cooperative relation to each other.

3. In a machine of the class described,

v"the sole, a single means for moving said two supporting means intcfand outof operative supporting position` and means connecting said last mentioned means and the supporting means for adjusting siidsupporting means automatically to varying inside and' outside sole thicknesses.

Ina machine of the class described provided with a work abutment, means operating inside the shoe to clamp the portion of the sole to be operated upon against the vvork abutment', means operating outside'the shoe to clamp the adjacent-portion of the sole margin against the Work abutment, and edualizing means constructed to maintain a lixed ratio of clamping pressures between the two clamping means tor varying sole thicknesses.

6. In a machine for operating upon soles, a horn, margin' supporting means shaped to enter the crease between the upper and the sole margin to support the margin against the lforce ot the operatie-ns thereon, and automaticmeans for maintainimgv said horn and margin engaging means in coperative relation to each other.

7. vIn a machine for operating upon soles, a horn, and means t'or supporting the marvin ot' a shoe sole adjacent to the part supported bj' the. horn against the torce of the loperations upon the sole, yieldingly maintained in cooperative relation to said hoyn.

8. ln a machine of the class described. a horn. means Vtor supporting the projecting margin of the sole adjacent to the portion supported by said horn, and equalizing connections between said horn and said mai"- `rin supporting means arranged to permit. tree relative increment of adjustmentof .said horn and said supporting means.

t). ln a machine of the class described, a.

'work support comprising separate means for bringing clamping pressure to bear upon ditt'erent parts of a shoe, a single means for transmitting the clamping pressure to said clamping means, and means interposed hetueen said single means and said clamping means for causing the clamping pressures transmitted to the shoe to bear a definite proportional relation to each other for varying relative thicknesses of vthe parts clamped.

10. ln a machine of the class described, provided with a work abut-ment, a horn, -means for causing said horn to clamp the sole ot' a shoe against the work abutment.7 margin supporting means also operated 'from said aforementioned means to clamp the projecting margin otf a sole against said work abutment, said margin supporting means being shaped to enter the crease between connecting said margin supporting means and said horn Constructed to eiiect such relative adjustment of the connected parts during. vthe work clamping movement that the pressures upon the respective parts of the sole supportedby said horn and said margin supporting means bear a determined proportional relation to each other.

having a work abutment, against which the work is clamped, a horn, margin supporting means, and means for bringing to bear upon the respective parts of the sole whichaie clamped between the work abutment upon one side and the horn and the margin supporting mians upon the other side pressures which in amount bear a determined relation to ,each other for varying relative thicknesses ot' the parts clamped.

12. In a machine for operating upon soles, a work supportl movable between a Work receiving-position and a work clamping posiand outside-shoe sole supporting means Yarranged to support the sole againstvthe force o't the operations thereon, and means for automatically effecting a relative adjustment work clamping position.

13. In a machine of the `class described, means t'or supporting upon the inside of the shoe the part of thesole to be operatedA upon, 'means t'or supporting upon the' outside of the shoe the adjacent portion of the vsole ma rgin', a single means for moving said two supporting means into and out of operative 'supporting position and means for effect-ing automati'calli7 both a relative lateral adjustment of said means and a relative vert-ical adjustment of said means to suit the conditions of the work to be operated upon.

14. in 'a machine for operating upon soles, a Worksupportmorable between 'a work receiving position anda Work-clampingpositiom'said work support comprismg 'inside 11. In a machine ot the vclass describedv tion, said work support comprising insiderv the upper and the sole margin, and means toward each other of said inside and outside -Jneans as the york support 1s moved mto andA outside i shoe sole supporting means maintained normally in coperative relation .to each other and adapted to support the sole against the force of the operations thereon, and means for automatically separating said supporting means as the Work support is moved into Work receiving position. 1

' 15. In a machine for operating upon soles,y

means for supporting the sole of a shoe upon the inside, means tor supporting the projecting margin of said sole yieldingly pressed toward said inside supporting means, means for moving said supporting means into and out of supporting position, and means for positively separating said supporting means as they are moved out of operative supporting position.

16. In a machine for operating upon soles, a horn and margin supporting meansmaintained yieldingly in cooperative relation to said horn whereby said horn acts inside the shoe to support the sole against the opera-,

tions thereon and the margin supporting means acts outside the shoe for the same purpose, means 'for raising and lowering said horn and margin supporting means, and means for moving said margin supporting means out of cooperative relation to said horn when the horn is lowered.

17. In a machine of the class described, a horn, sole margin supporting means yieldingly maintained in cooperative relation to i said horn whereby said horn acts inside the shoe to support the sole against the operations thereon and the margin supporting means acts outside the shoe for' the same purpose, and meansii'or locking said margin supporting means out ot operative relation to said horn. l

18. In a machine for operating upon soles, a vertically movable horn and vertically movable sole margin supporting means, said horn and sole margin supporting means being ada ted to support the sole against the force o the operations thereon and being relatively self-adjustable along the paths of their vertical movements.

19. In a machine for operating upon soles, a vertically movable I horn and vertically movable sole margin supporting means, said horn and sole margin supporting means being adapted to support the sole against the forcefot the operations thereon andV being self-adjustable toward and away from each other.

20; In a machine for operating upon soles, a vertically movable horn and vertically movable sole margin supporting means, said horn and sole margin supporting means being adapted to support the solev against the force ofthe operations thereon and being arranged for Work accommodating relative movement towardl and away from each other. a

21. In a machine for operating upon soles, a horn and sole margin supporting means vertically'movable into and out of Work supporting position, said horn and sole margin supporting means being adapted to support the sole against the force of the operations thereon and being relatively movable along the paths of their vertical movements and during such movements to cause them to come into Work accommodating relation-to each other. Y

22. In a machine of the class vdescribed having a Work'abutment, a horn andsole margin supporting r,means cooperating with said work abutment to clamp a shoe sole in position to be operated upon, said horn and margin supporting means beingV adapted to support the sole against the force ofthe op- @rations thereon and being relatively selfadjustable in the direction of their clamping movements to accommodate varying thicknesses of the sole partsclamped. ,In testimony whereof We have signed oui` names to this specification in the presence of two subscribing Witnesses.

Witnesses: y

ARTHUR HOPKINS, WALTER W. BALL.

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