US873635A - Last. - Google Patents

Description

No. 878,635. PATENTED DEC. 10, 1907. J. P. THURELL.

LAST.

APPLICATION FILED AUG.22, 1906.

I ii ,3 al

JOHN P. THURELL, OF NORTH ADAMS, MASSACHUSETTS.

LAs'r.

Specification of Letters Patent.

Patented Dec. 10, 1907.

Application 515d August 22,1906. Serial No- 331.619.

To all whom it may concern:

Be it known that I, JOHN P. THURELL, a citizen of the United States,residing at North Adams, in the countyof Berkshire and State of Massachusetts, have invented new and useful Improvements in Lasts, of whichthe' follow is a specification.

This invention relates to lasts of that typ in which the fore-part section and heel section are pivotally connected, and the object of the present improvement is to rovide an eflective latch attachment, as wel as other details of construction which will render devices of this class more effective in their operation and practical service. I

The present invention embodies improvements on the lasts disclosed by my pending applications, serially numbered 283,150 and 291,161, filed respectively October 17, 1905, and December 8, 1905.

In the drawings, Figure 1 is a side-elevation of a last embodying thefeatures of the invention. Fig. 2 is a longitudinal vertical section of the same. Fig. 3 is a detail perspective view of the improved socket and guard or wear plate forming part of the last. Fig 4 is a longitudinal section of a ortion of the lastshowing a reversal of parts t ereof.

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numerals 1 and 2 respectively designate the fore and rear sections of a last, which are pivotally connected by a transversely extending pin 3, the fore section of the last having a rear curved extension 4 fitting in a corresponding concaved seat 5 in the rear section of the last. The extension 4 has an arcuate edge 6, which is ractically a segment of a true circle struck from the center of the extension where the pin 3 passes therethrough. The rear upper portion of the fore section 1, and the front upper portion of the rear section 2, above the extension 4 and concaved seat 5, are cut away topermit movement of the two sections, one towards the other, and by means of the extension 4 the range of movement of the two sections is materially increased. A metallic plate 7 is secured to the rear section and projects into a slot 8 of the fore section, the pin 3 extending through the said plate. The slot 8 opens out through the upper rear portion of the fore section and has a pin 9 extending transversely thereacross. Ina slot 10 in the upper front portion of the rear section 2, a hollow latch 11 is pivotally mounted, the said latch preferably consisting of a piece of bent or doubled sheet metal which fits over the upper edge of the plate 7, .and between the upper edge of the said plate and the top of the latch a spring 12 is interposed and inclosed by the latch, the function of the said spring being to throw the latch 11 upwardly far enough at its forward extremity to strike against the pin 9 and prevent the two last sections from having movement. slmple and positive in its operation, and when it is depressed it moves downwardly over the plate 7 without obstruction, in view of the fact that the bottom of the said latch is open. When the latch is released from contact with the pin 9 it is'movable with the plate 7 into the s 0t 8 below the said pin 9, but the moment that the last sections are disposed in normal position the spring 12 automatically forces the latch upwardly to bring the front end thereof in engagement with the pin 9.

Another feature of improvement in the present last is the combined socket and wear plate shown applied in Fig. 2 and in detail by Fig. 3. The socket 13 is practically integral with a wear-plate 14 conforming in contour to the upper portion or top edge of the rear section 2, and when the socket is driven fully downwardly into the section 2, the plate 14 bears closely against the upper edge of said rear section and protects the latter. The socket 13 and plate 14, in view of their practical integral assemblage, may be simultaneously applied, and the use of the wear-plate This latch is very will be found exceptionally advantageous in rendering the section 2 more durable.

The parts of the improved last are simple and can be readily assembled: The jack is of material advantage in operating the last, and the latch disengaging plunger being prevented from having rotation will always occupy an operative relation to the latch.

In Fig. 4 a reversal of parts of the improved last is shown and consists in pivoting the latch 11 to the fore-section and arranged to engage a pin 9 in the rear section. The curved extension 4 is also formed with the rear section and pro'ects in a concaved seat 5 constructed in the fore-section.

Having thus described the invention, what is claimed, is:

1. A divided hinged last comprising a forepart section and a heel section, a plate se-' tending into the other, a pivot device extending through portions of the two sections and the plate, and a hollow latch pivotall held on the upper portion of the plate an movable downwardly over the upper edge of the latter, the latch embracing t e upper edge of the plate whenfully depressed, one of the last sections having a sto device which is engaged b the free en of the latch.

2. A ivided hinged last comprising a foresection and a heel section, a late secured to the heel section and movab e into the fore section, a pivot device extending through portions of the two sections and the plate, a stop device in the upper rear portion of the fore section, a hollow latch secured to the heel section and movable over the plate and adapted to have its front extremity engage the said stop device, and a spring interposed between the plate and latch and inclosed by the latter.

3. A divided hinged last comprisin a forepart section and a heel section, a p ate for ivotally coupling the two sections, a hollow atchmovably connected at one extremity on the upper portion of the plate, the latch when move to clearing position embracing the upper portion of the plate, and means carried b one of the last sections for engagement wit the free end of the latch.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOHN P. THURELL.

Witnesses:

. JOHN A. THURELL, RoY D. GILBSON.

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