US1509039A - Last - Google Patents

Description

Sept. 16, 1924.. 1,509,039

. I A.GODFREY 7 LAST Filed Dec. 29, 1922 2 Sheets-Sheet 1 A.GODFREY LAST Sept. 16 1924.

Patented Sept. 16, 1924.

ALEXANDER GODFREY, OF HAVERI-IILL, MASSACHUSETTS; ANNIE E. GODFREY AND ARTHUR C. MURPHY, BOTH 0F HAVERHILL, MASSACHUSETTS, EXECUTORS OF SAID ALEXANDER GODFREY, DECEASED.

LAST.

Application filed December 29, 1922. Serial No. 609,755.

To all whom it may concern:

Be it known that I, ALEXANDER GODFREY, a citizen of the United States of America, and a resident of Haverhill, in the county of Essex and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Lasts, of which the following is a specification.

This invention relates to lasts for use in the manufacture of boots and shoes, and more particularly to that class commonly known as two-part collapsible or hinged lasts.

The present invention is an improvement on an invention, the patent application for which was filed by me July 20, 1921 Ser- No. 486214.

An object of the present invention is to produce a last of the above class, the hinge portions of which are simple in structure, cheap to manufacture, easy to assemble, and when assembled, affords a hinge that is durable, being capable of receiving hard usage because of the absence of delicate and easily disarranged parts.

A further object of the invention is to produce a hinge mechanism of few parts which has co-acting therewith, a locking means so arranged as to be neatly hidden from view, and possible accidental unlocking, and yet easily accessible to unlock, when the proper tool or instrument is used.

It is an object of the invention, to so locate the locking means, as to economize in the number of parts used, and in the labor to produce the parts, and particularly to obtain the maximum strength to oppose the tendency of the last to collapse when under working conditions.

Theinvention further consists in certain novel features of construction and arrangement of parts which will be fully understood from a description of the drawings and the claims hereinafter given.

Of the drawings:

Figure 1 represents a side elevation of a last shown in extended position.

Figure 2 a view similar to Figure 1 partially broken away showing the hinge members and locking device in elevation.

Figure 3 a view similar to Figure 2, but

showing the last as collapsed.

Figure 4: a detail in plan View of the hinge members and locking device assemlloled as in Figure 2 but removed from the ast.

Figures 5, 6 and 7 detail views of the hinge members and locking device, in side elevation as seen in Figure 2.

Referring to the drawings: i

The last 10 which is or may be of the deslred size and shape, is composed of a forepart 11 and a heel 'part 12 arranged to be swung toward and from each other, first to be shortened for insertion into, or removal from a shoe and second to be lengthened or extended when in the shoe and posi tively locked in such position during the varlous operations incident to shoe making.

It is an object of the present invention to provide certain devices, which when com-- do so. It is further required that these parts or devices be few in number and of considerable strength and durability. With this end in view the hinge members herein are composed of comparatively thin, yet strong metallic plate like parts, one of which 13 is rigidly secured to the fore part 11 in a slot 14:, therein, while the other 15 is likewise firmly secured in a slot 16 of the heel part 12. The part 13 is held in the slot by the pins 17 and 18, and the part 15 is held by the pins 19 and 20. Both of these parts protrude beyond their respective slots, each entering the slot of the other, thepart 15,- having a portion thereof 21 in which is a curved slot 22 through which the pin 18 passes and by which, swinging'movement of 2 1 of the part 13 and in so doing aids in guiding the heel part during its swinging movements, and in pressure resisting strength when the last is extended and .in use.

Preferably the slots 22 and 24 are struck from'radii with a center located below the planeof the bottom of the heel, but it will be understood that this invention contem plates the movement of the heel part in a curved or straight path, as well as a circular one as shown.

While the principal function of the plate 13 is to slidingly secure the part 15 and consequently the heel part 12 to the fore part 11, it is of such arrangement that it also conveniently functions as one member of a looking means. Pivotally mounted on the pin 20 is a locking latch 25 having an end 26 so shaped as to snugly abut the upper edge of the part 13 at 27, the said abutting surfaces being cut on an arc, the center of which coincides with the center of the pin 20. The said latch 25 has a finger like extension 28, which overlaps the part 13, to limit its movement by the spring 29, which normally acts to maintain the said latch in its locked position shown in Figure 2.

The arrangement of the latch 25 relatively to the part 13, is such that pressure, tending to collapse the last when in extended posi tion, is resisted chiefly by the pins 17 and 20 as the main receivers thereof. The said pressure is transmitted from one pin to the other, through a solid portion of the part 13, and approximately lengthwise of the latch, in such manner that the pressure is transmitted along the line of greatest strength of the parts involved.

The above arrangement conveniently places the latch in such a position, that it is protected from accidental disengagement with the part 13, and it is also conveniently placed so that an extension 30, thereof, may contact with a spindle, not shown, adapted to enter the socket 31 when the last is placed thereon to remove the shoe therefrom. It is obvious that when the last is adjusted to the last removing ack having the said spindle, the latch will be disengaged from the part 13 and the last collapsed and the shoe removed. Obviously too, a hand tool may be used to the same effect if so desired.

When the last with a shoe thereon is placed on a jack wth a short spindle, not shown, entering the socket 31, and a toe or fore part support, pressure at that time brought to bear between the two points of support will be resisted by the pin 18 at the end of the slot 22 and the stud 23 at the end of the slot 2-1.

Pressure resistance at this time is also aided by the structure of the fore and heel parts at the junction thereof, particularly the part 35 which overlaps the knuckle like rearward extension 36 of the forepart, see Figure 1, which effectively prevents movement of the heel part in the direction of the arrow a, about the pivotal center 0, which is located at approximately the point indicated in the drawings. As a matter of economy in the manufacture of the above explained devices, it will be understood that it is the intention to make them of such size, that they may be assembled wit-h various sizes and styles of lasts.

It will also be understood that it is not the intention to limit the invention to the precise construction and arrangement herein shown as the same may be changed without departing from its spirit and scope.

Having described the invention, I claim:

1. In a last of the class described, the combination of a two part last adapted to be hinged, the pivotal center of which is lo cated below a plane intersecting the toe and heel tips; of a hinge comprising a member fast with the fore part in a slot provided therefor, and a member fast in a slot of the heel part; means to fasten each of said mem bers in its respective slot, said first member having a slot therein adapted to be entered by a stud projecting from said second member; said second member having a slot parallel to the slot of said first member and adapted to be entered by one of the fastening devices of said first member, said slots and said stud and fastening device being the means to retain said fore and heel parts in operative relation; a latch pivotally mounted on one of the fastening devices for said second member adapted to coact with said first member to lock the last in extended position; means to normally retain said latch in locking position; and means to disengage said latch from said first member when said last is to be collapsed.

2. In a last of the class described, the combination of a two part last adapted to be hinged the pivotal center of which is located below the plane of the bottom of the heel and forward of the dividing line of the two parts; of a hinge comprising a member fast in the fore part in a slot provided therefor, and a member fast in a slot of the heel part; means co-acting with each of said members, whereby said fore and heel parts are retained in operative relation; and a locking means located within said heel part adapted to co-act with said first member to lock the last in extended position.

3. In a last of the class described, the combination of two part last adapted to be hinged the pivotal center of which is located below the plane of the bottom of the heel and forward of the dividing line of the two parts; of a hinge con'iprising a member fast in the fore part in slot provided therefore, and a member fast in a slot of the heel part, each member extending into the slot of the other; and a latch adapted to co-act with said first member to lock the last in extended position; said latch being so located and arranged within said heel part, that the strain incident to pressure tending to collapse the last when locked in extended position, is received by said latch in approximately the direction of the length of said latch.

4C. In a last of the class described, the combination of a two part last adapted to be hinged the pivotal center of which is located below the plane of the bottom of the heel and forward of the dividing line of the two parts; of a hinge comprising a. member fast with the fore part in a slot provided therein; a member fast in a slot of the heel part; means whereby each of said members aid in maintaining operative relationship between said fore and heel parts; and a latch adapted to co-act with one of said members to hold said last in extended position; said latch being arranged approximately tangential to the point of contact with said co-acting member, whereby strain imparted to said latch is received in the direction of its greatest strength; means tonormally retain said latch in engagement with said co -acting member; and means to cause said latch to disengage from said member.

5. In a last of the class described, the combination of a two-part last adapted to be hinged; of a hinge comprising a member fast in aslot of the fore part and a member fast in the slot of the heel part, each of said parts entering the slot of the other; each of said members having a slot therein parallel to that of the other; pins securing said first member to said fore part, one of which passes through the slot of said second memer; a stud projecting from said second member into the slot of said first member; pins securing said second member to said heel part; a. latch pivotally mounted on one of said pins and adapted to co -act with said first member to lock the last in extended position; means to disengage said latch from said first member; and a rearward extension of said fore part adapted to form an abutment for a projection of said heel part.

6. In a last of the class described, the combination of a two-part last adapted to be collapsed, of a member fast in a slot of the forepart, and a member fast in a slot of the heel part, each of said members entering the slot of the other member; each of said members having a slot therein parallel to that of the other; pins securing said first member to said fore part, one of which passes through the slot of said second member; a stud pro- 'jectin from said second member into the slot of said first member; pins securing said second member to said heel part; a latch pivotally mounted on one of said pins, and

adapted to coact with said first member :to

walls of which have aligned slots therein; a

member rigidly secured to the heel part, and extending into the slot of the fore part; a

member rigidly secured to the fore part and' extending into the slot of the heel part means to'secure each of said members in its respective part, said first member having a slot therein adapted to coact with securing means for said second member; said second member having a slot therein adapted to coact with a pin projecting from said first member, said slots and coacting securing means and pin being arranged to slidingly retain said parts in operative relationship, said slots being parallel to the line of collapsing movement of said parts; a latch in said heel part pivotally mounted on securing means for said first member, said latch being housed within said heel part, and having a rearwardly extending tail portion, and adapted to engage said second member when the last is in extended position; a jack post socket in said heel portion, the inner open end of which is in communication with said slot in said heel portion, whereby provision is made for said tail portion to extend into the path of a jack post; and means to normally force said latch into engaging position.

pivotal center of which is located below a plane intersecting the toe and heel tips and forward of the dividing line of the toe and heel parts and having a fore part and a heel a s5 8. In a last adapted to be collapsed, the

part, each of which has a member fast thereto, adapted to overlap the other member, said members being arranged side by side, and being provided with means to slidingly retain said parts in operative relationship;

'and'a locking latch mounted in one of said parts and adapted to coact with the member of the other part to lock said parts in extended position.

Signed by me at Boston, Mass, this first day of December, 1922.

ALEXANDER GODFREY;

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