US1134504A - Last. - Google Patents

Description

NETE@ STATES PATENT FFTCE GEORGE E. BELCHER, OF STOUGHTON, MASSAGHUSETTS.

LAST.

Application filed February 18, 1914.

To aZZ whom it may conoem Be it known that I, GEORGE E. BELCHER, a citizen of the United States, residing at Stoughton, county of Norfolk, Commonwealth of Massachusetts, have invented certain new and useful Improvements in Lasts, of which the following is a specification.

This invention relates to hinged lasts and particularly to the anchoring of the hinge or link of such a device.

In the varous shoe operations, the last is subjected to very great pressures which tend to break down the last and crush the heel part at the spindle socket, in spite of the fact that the spindle socket is usually provided with a metallic thimble. The pressure of the jack spindle however is often so great as to break through the lower closed end of this thimble and split the last.

I have found that by using a heavy metallic plug and placing it opposite and slightly in advance of the spindle socket very satisfactory results may be had. In addition to its function of 'reinforcing the last, the plug has an additonal function not present in other devices of this sort. The plug of the present invention serves as the anchor for the rear end of the last union and obviates the necessity for a pin fiXing this end of the union in the heel part. Moreover, the Construction of the plug is such as to hold the link end tightly against play While permitting a longitudinal movement eflective to draw up on the last parts and Secure a relative adjustment. This adjusting movement is eifected through the use of a suitable screw driver engaging a settingup screw which has its bearing in said plug and is threaded into the rear end of the link.

The Construction and operation of my device will be more fully disclosed in the specification which follows, and in the drawings which form a part of that specification, I have shown as an illustrative embodiment a Construction which not only clearly illustrates the principle involved, but is in itself a form proven satisfactory in practice and Well adapted to the requirements of the trade.

Throughout specification and drawings like reference numerals are employed to in- Specification of Letters Patent.

Patented Apr. 6, 1915.

Serial No. 819,311.

dicate corresponding parts, and in these drawings: Figure 1 is a central longitudinal section through a last in accordance with my lnvention and indicating in dotted lines the relative position of the parts when the last is collapsed, F ig. 2 is a longitudinal section on the indicated line 2-2, of Fig. 1, looking in the direction of the arrows, Fig. 3 is a section through the heel part with the link removed and showing the plug in position, and Figs. 4c and 5 are details of the anchorm plug detached and viewed from opposite S1 es.

I have indicated at l and 2 the fore part and heel parts respectively, of a so called divided last adapted to move on each other with a bearing formed by a Curved dividing cut. The fore part 1 has a vertical kerf 3 and the heel part 2 a longitudinal bore 4: extending from end to end thereof.

The last union in the form shown consiste of a link 5 pivoted at its forward end in the fore part by a transverse pin 6 and guiding in the kerf 3. At its rear end the link seats in the bore 4 and is fiXed in the heel part by an anchoring plug 7.

The plug 7 in the form shown consists of a solid metal cylinder. It is inserted in a vertical bore starting from the bottom of the heel part and eXtending up toward and slightly beyond the lower closed end of the thimble 8, which lines the spindle socket. The bore however is disposed slightly to one side of the thimble so that the plug is really parallel to the thimble. Approximately midway of its vertical length, the plug has a hole 9 let therethrough to receive a settingup screw 10 for drawing up the link. To provide a close bearing for the screw, the

metal of the plug on two sides of the hole' 9 is cut away as indicated at 11 in Fig. 5. This brings the head of the screw up tight against the plug. The threads of the screw engage in an interiorly threaded axial bore in the rear end of the link. To bring the link end up close against the plug the metal of the link is cut away on two sides as indicated at 12, Fig 1, and the metal of the plug surrounding the hole 9 is also cut away as indicated at 18, Fig. 4, to provide a recess in which the reduced end of the link is received. This provides a very tight connection of the link and plug at this end and prevents play of the parts. When the link is draWn up the reduced end of the link rides into the recess 13 until the edges of the plug abut the shoulders on the link formed by cutting aWay the metal at 12. The screW 10 is inserted from the rear end of the heel part through the bore 4 'which eXtends from end to end of the heel part. The screW 10 is ready for operation by inserting a screwdr-iver in the bore 4.

In assembling the last the plug 7 is first set-up, the link driven back to fit but not Wholly fill the out-out 13 and the pivot pin 6 driven home to fasten the forward end of the link. The screW 10 is then threaded through the bearing provided by the plug into the rear end of the link until the link is draWn up sufiiciently to give the desired adjustment of the last parts. The rear end of the bore 4 may then be closed by a suitable plug if desired.

By locating the plug 7 underneath and to one side of the thimble it Will very eflectively resist and absorb the pressure and prevent splitting of the last. In addition the plug provides a very firm anchor for the rear end of the link and prevents lateral play of the link, .thereby tending to prevent the union breaking down under the pressure. The plug moreover provides a center bearing for the Setting-up screW Which draWs up the link. The link in this draWing up motion moves backwardly to- Ward the cut out portion 13 of the plug until the edges of the cut out abut the shoulders formed by clearing aWay the metal of the link end at 12.

Various modifications in the form, mate rial and location of the plug, in the manner of engaging the plug and link, in the manner of draWing up the link and in any other details may obviously be resorted to, within the limits of the appended claims.

What I therefore claim and desire to secure by Letters Patent is:

1. In a divided last comprising last parts and a union connecting said parts, an anchor for fiXing one end of said union in a last part consisting of a' bearing and reinforcing member removably inserted in one of the last parts and efiectively disposed relative to the union, and an engaging device rotatably' set up in said' bearingmember and operatively engaging said union at its end. v 2. In a divided last comprismg last parts and a union connecting said parts and having an axial bore, means for fiXing one end of said union in a last part consisting of a ,bearing and reinforcing member removably inserted in one of said parts and vertically arranged relative to the union, and

an engaging device rotatably set up in said bearing member and threading into said aXial bore in the opposed end of the union.

3. In a divided last comprising last parts and a union connecting said parts and having an aXial bore, means for fiXing one end of said union in a last part consisting of a plug in one of said last parts arranged at right angles to the union, and a screW set up in said plug and threading into said aXial bore in the opposed end of the union.

4:. In a divided last comprising last parts and a union conneoting said parts, an anchor for drawing up on said union, comprising a bearing and reinforcing member removably inserted in one of the last parts and anchoring o'ne end of the union, and a setting up device operatively mounted in said bearing member and having a detachable engagement with the opposed end or said union.

5. In a divided last comprising last'parts and a union connecting said parts and having an aXial bore, means for drawing up oni said union, comprising a bearing member arranged in one of the last parts at right angles to the union and anchoring one end of the union, and a screW operatively mounted in said bearing member and having a threaded engagement in said aXial bore 'in the opposed end of said union.

6. In a divided last comprising a fore part and a heel part, a union pivoted in said fore part, an anchoring member arranged at right angles to the union and fiXing said union in the heel part, said member having a 'hole let therethrough and said union being cut aWay on tWo sides near its end in order to fit closely against said member, and means for draWing up on said union comprising a rotatable member having a bearing in said anchoring member and eXtending through said hole therein to detachably en-' gage the opposed end of the union.

7. In a divided last comprising a fore part and a heel part, a union pivoted in said fore part, an anchoring plug vertically arranged and fixing said union in the heel part, said plug having a hole let therethrough and* said union being cut aWay on two sides near its end in order to fit closely against said plug, and means for draWing up on said union comprising a screW having a bearing in said plug and eX- tending through said hole therein to thread intothe opposed end of the union.

8. In a last' co1nprising a fore part and a heel part, said heel part having a spindle socket and a union for said parts, a bearing and reinforcing member inserted in the heel part in reinforcing relation to the spindle socket of said part and anchoring one end of the last union, and a Setting up device operatively mounted in said bearing member and having a detachable engagement With the opposed end of said union.

9. In a last comprising a fore part and a heel part, said heel part having a spindle socket and a union for said parts, a bearing and reinforcing member inserted in the heel part in substantial parallelism to the spindle socket of said part and anchoring one end of the last union, and a Setting up 10 device operatively mounted in said bearing member and having a detachable engagement With the opposed end of said union.

In testimony whereof I afliX my signature in presence of two Witnesses.

GEORGE E. BELCHER.

Witnesses:

S. A. UPHAM, RALPH P. ROWE.

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