US1375676A - Sole-fitting machine - Google Patents

Description

J. W. COSGROVE.

SOLE FITTING MACHINE.

APPLICATION FILED 0CT.19, 1917 Patented Apr. 26, 1921.

UNITED STATES "PATENT OFFICE.

JOHN W. COSGROVE, OF EIEDFORD, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

SOLE-FITTING MACHINE.

Specification of Letters Patent.

Patented Apr. 26, 1921.

Application filed October 19, 1917. Serial No. 197,464..

T 0 all whom may concern:

Be it known that I, JOHN W. Cosenovn, a citizen of the United States, residing at Medford,,in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Sole- FittingMachines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to sole fitting machines and'more particularly to such machines for preparing the toes of insoles for the lip turning operation, such as the machine illustrated and described in Letters Patent of the United States, No. 1,087,578, dated February 17,1914, to John B. H'adaway.

The present invention relates to improvements in the sole engaging devicesfor fitting machines adapted particularly to the mechanism of the machine of said patent, although those skilled inthe art will recognize that the scope of the invention is notlimited to sole fitting .machines for performing the special operation therein described.

The objects of theinvention will be apparent from the following description of the featuresand combinations ofparts by which the objects are attained, and which are illustrated inthe accompanying drawings of the preferred form of the invention.

In the drawings Figure 1 is. a front elevation of the head of the machine shown in said patent, with the present improvement added; Fig. 2 is a central, vertical section through the head shown in Fig. 1; Fig. is a plan of the improved work support; and Fig. 4 is a detail of partsto be described.

In the embodiment ofthe invention illustrated in the drawings the frame 5 of the head, the reciprocatingplunger 7 carrying the V-shaped lip knife 9 and the inoising flap knife 11,.driven by the wristpin 13 on the driving shaft 15, and the work supporting table '17 carried on the yielding plunger 19 guided in the lower part ofthe frame 5; all may be, and preferably are, ofthe same design as like parts in said patent. The operating mechanism for the'driving shaft 15 may be of any convenient des gn but is preferably constructed like that illustrated insaid patent wherein the revolutions of having flat heads'27.

the shaft are controlled'by a onerevolution clutch of the Horton type operated by a foot treadle, all as usual and well known.

In the machine of said patent two presser gages are provided, one at each side ofthe knives 9 and .11 carried at thelower end of a presser bar 21 mounted for vertical-adjustment on the knife plunger 7. It has been found that in the machine of said patent there is a decided tendency for thesole to pick up or rise withthe knives embedded therein, which undesired movement is obj ectionable in that in removing the-sole from the knives, which is done'hastily, eitherthe flap knife is broken or the sole iszmutilated boring the two depending *feet'23 and 25,

which .formed the old presser gages, and setting in the'bores spring presse'dplungers (Figs..1 and 3). "The construction is clearly understood fromthe sectional view shown in Fig. 1 inwhich view the springs 29, which normally maintain the heads 27 advanced as showniin Figs. 1 and .2, are compressed'by contact with the sole beingoperatedupon. When the plunger 7 moves in a direction to carrythe presser .bar 21 upward the pressure on the heads 27 from their springs 29 causes them to hold the sole on'the work table I and act as strippers permittingthe knives to be withdrawn from the sole. It will be notedthat'the stripper heads 27 also perform the function of gaging the depth of cut of the knives when the springs 29 are under compression, as in Fi 4.

In addition to theimprovement 'just described the invention embodies improved means for positioning a-sole on the work table. In the machine'of said patent sole gages were provided which required adjustment for each new size or style'of sole :to be operated upon. As designed by the present invention the sole gages automatically accommodate themselves to all sizes and styles, at the same time permitting free operation of the sole stripping devices just described.

The desired construction is provided by an 25 sole engaglng sides, of a sufiicient length 55 operation of the knife, and a combined of the outer ends of two levers 37, extending inwardly beneath the table, and fulcrumed on separate pivots 39 formed by screws threaded into the under side of the table. The levers 39 are connected by intermeshing gear segments 41 on the hubs at their inner ends, and a spring 48 is connected between one segment and the table so as to normally maintain the gages 31 m a position of approach. With this arrangement, on placing a sole in the machine the m engages an adjustable stop 47, carried below the work table, to limit the approach move gages are forced apart and are held yieldingly to the sole whatever its toe contour A lug 45 on one of the segments 41 ment of the gages. It will be noted that the side gages 31 have built up walls 49 at their and height to insure an engagement with the sole edge should the sole be warped or bent so as to throw the forepart upward as frequently occurs. Furthermore the design of .the arms 35, carrying the gages, is such that evenwhen in their position of closest approach the presser gages and strippers 27 are always able, on descending, to engage the face of the sole, no matter how far the strippers may project beyond the edges of extremely pointed toes.

In operating the machine the relative po- 1 sition of the gages is such that the toe of the sole is correctly positioned, and is held, for the cuts to be made by the knives, whatever the contour of the toe may be, and after the i b power is applied the cuts are made cleanly and accurately due to the combined action of the strippers and gages, all without injury to the knives.

The nature and; scope of the present invention having been indicated and the preferred embodiment of the invention having been specifically described, what is claimed as new, is

1. A sole fitting machine, having, in combination, a knife for cutting into the marginal portion of a sole, gages for engaging the edge of the sole to position it for the presser gage and sole stripper adjacent the knife.

bination, a yielding work table, a positively reciprocated knife arranged to incise a sole on the table, and a depth gage comprising a plunger having a limited yielding movement movable with the knife.

5. A sole fitting machine, having,in combination, a work table, a toe cutting tool, a sole stripper at each side of the tool which may project beyond the sole edge, and a pair of side gages yieldingly held in their position of nearest approach to the tool, constructed and arranged to clear said strippers when in such position. j

6. A sole fitting machine, having, in combination, a work table, a tool, means for, positioning a sole for the operation of said tool comprising a toe gage and side gages carried on arms having hubs fulcrumed on independent pivots beneath the table, said hubs having inter-meshing gear segments whereby the gages are moved in unison, and a suitably connected spring for holding the side gages yieldingly inward toward the toe gage.

7. bination, a work table, a tool above the table, a toe gage, and side gages cooperating therewith comprising'arms extending across the upper side of the table having gaging ends adjacent each side of the toe gage, supports for said arms extending across the lower side of the table, pivots for said supports beneath the table, and means for yield ingly, articularly connecting said supports beneath the table.

8. An insole fitting machine, having, in combination, a work table, two knives above the table for cutting the material of the lip and the flap at the point of the toe of the insole, a .toe gage, yielding side gages extending inwardly across the table toward the toe gage adapted to open as an insole is thrust between them, and a sole stripper at each side of said knives. r

9. A sole fitting machine having, in combination, a yielding work table, a positively reciprocated knife arranged to incise a sole on the table, and a combined presser gage and stripper movable with the knife constructed and arranged to yieldingly engage the sole in advance of the knife, then to form an unyielding abutment to gage the depth of the incision and finally to strip the sole from the knife.

10. A sole fitting machine having, in combination, a work table, means for positioning a sole thereon comprising side gages movable in a plane above and parallel to the top of the table and carried on members p A sole fitting machine, having,in eomhaving hubs fulcrumed on independent pivots beneath the table, said hubs having intermeshing gear segments whereby the gages are moved in unison, and means for yieldingly pressing the gages toward each other.

11. A sole fitting machine having, in combination, a Work table, a tool, and means for positioning an end portion of a sole for the 10 operation of said tool comprising edge gages movable in a plane above and parallel to the top of the table intocontact with the sole near its end and carried on members fulcrumed on independent pivots in front of the tool and edge gages, connections for causing the gages to be moved in unison and means for yieldingly pressing the gages toward each other.

JOHN W. COSGROVE.

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