US759297A - Spindle-socket for lasts. - Google Patents

Description

SPINDLE SOCKET FOB, LASTS.

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Patented May 1o, 1904.

PATENT EEICE.

EPHRAIM S. MORTON, OF BRCKTON, MASSACHUSETTS.

SPINDLE-SOCKET FOR LASTS.

SPECIFICATION forming part of Letters Patent No. 759,297, dated May 10, 1904.

l Application filed August 20,1903. Serial No. 170,157, (No model.)

To all whom, t may concern: Y

Be it known that I, ErnnAIM S. Mon'roN, oi Brockton, in the county ot' Plymouth and State of Massachusetts, have invented certain new and useful Improvements in Spindle-Sockets 'for Lasts, of which the following is a speciiication.

This invention relates to metal tubes which are driven into holes .formed for theirreception in the heel portions of wooden lasts, the tube forming a socket for the reception oiE the spindle of the jack on which the last is held.

rlhe invention has for its object, iirst, to provide a socket of this character which shall be firmly engaged with the Wooden body of the last by the operation oi driving the socket into the hole bored into the last, and, secondly, to provide the socket with means for preventing it Jfrom indenting the Wood at the bottom o'l said hole when subjected to pressure tending to drive the socket into the last more deeply than the depth ot' the hole Will permit.

rlfhe invention consists in the improvements which I will now proceed to describe and claim.

Oi' the accompanying drawings, 'forming a part of this specification, Figure l represents a perspective view of a socket embodying' my invention. Fig. 2 represents a side elevation of the same. Fig. 3 represents a section on line 3 3 oi' Fig. 2. Fig. l represents a perspective view of the end piece or head secured to the inner end of the socket. Fig. 5 represents a sectional view of a portion of a last provided with my improved socket.

The same reference characters indicate the same parts in all the iigures.

projectoutside ot' the periphery oi' the tube,

as shown in Figs. 2 and 3, and are inclined at their end portions, so that they join the end portions oi' the tube without the 'formation ot' abrupt shoulders. lt will be seen that the described construction enables the socket to be driven readily into a circular hole bored in the heel portion of a last, the ridges a indenting the wall of the hole and securely engaging the socket with the last, so that there is no liability of the loosening of the socket by the shrinkage of the wood of the last. The acute-angled ridges a a, separated from each other by a V-shaped space', are adapted to be driven into the Wood of the last with the minimum of resistance, and when \driven in they lirmly secure the socket in place.

Z) represents an end plate or head which is formed to enter the hole in the last and to cover the inner end oi' the socket. Said head may be secured to the socket in any suitable way, the said head bearing on the bottom of the hole formed in the last and preventing the inner end of the tube from iiulenting and sinking' into the last at the bottom of the hole under the pressure that may be exerted upon it during various operations that are conducted while the shoe is on the last, such operations ot'ten involving heavy pressure on the last, tending to force the uncovered. end of a tubular socket into the last. This is prevented by the head t. The head may de secured to the socket by means oi ears struck up from Ithe body of the head, as shown in Fig. il, said ears bearing on the innersurt'ace of the socket With suilicient .friction to hold the head in place. It will be understood that owing to the tubular portion and the head being formed as separate pieces the iirst may be made ot' relatively thin sheet metal for the reason that no particular strain comes thereupon in use, While the head or disk or plate employed at the bottom oi' the socket, where the heaviest pressure or strain is exerted in use, may be of relatively thick or strong metal. I am therefore able to produce an economical spindle socket or bushing, for the reason that the tubular portion may be produced Without Waste from a sheet ol relatively low-priced metal by an operation that is less expensive than spinning, while the rigid head of possibly thicker and more expensive material may be cut from a sheet with Very little waste.

I claiml. A spindlesocket or bushingcomposed of a metal piece bent to abut two edges of the sheet together and form a tube, portions of said piece being bent outwardly at its edges to form parallel,sharp-angled longitudinal projections or ridges adapted to indent the wall of a circular hole formed in a wooden last for the reception of the socket, said ridges being separated by a V-shaped space.

2. A spindle socket or bushing formed of a flat piece of sheet or plate metal bent to abut 'tially the same as that of the tube, so that it can enter the hole bored in the last for the reception of the socket.

In testimony whereof I have aliXed my signature in presence of two witnesses.

EPHRAIM S. MORTON.

l/Vitnesses C. F. BROWN, E. BATCHELDER.

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