US88231A - Improvement in wire for shoe-pegs - Google Patents

Description

ffm@ DLPEFERS. PHOTO-HUMMER, WASHINGTON, ILCA l UNITED STATES PATENT OFFICE.

ELMER TOWNSEND, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN WIRE FOR SHOE-PEGS.

Specification forming part of Letters Patent No. 88,231, dated March 23, 1869.

To all lwhom it may concern:

Beit known that I, ELMER TowNsEND, of Boston, in the county ot' Suffolk aud State of Massachusetts, have invented a new and useful Threaded Wire; and I do hereby declare the following to be a full and correct description of the same, reference being had to the accompanying drawings, in which- Figure l represents a spool ot' such wire, and Fig. 2 a detached piece ot' it.

The nature ot' this invention consists in raising a spiral thread upon a continuous length of wire by subjecting it to a pressure which aiters its form without removing any portion of its substance, and this irrespective ot' the mode inpwhich wire of this description may be made. 1 contemplate the use of such wire for the manufacture ot' screws or pins intended to be driven by percussion instead of by turning,

as screws are usually driven.

In order that a threaded piu or screw may be able to turn as it is driven by the blows of a hammer, the line ofthe thread must be much more oblique to the line ot' the Wire than it is in ordinary screws. Indeed, it would be difticult to cut a screw by the ordinary methods withits thread so much inclined to the line of its length as to adapt it to driving by percussion,or, in other words, to turn as it advanced under the blows ot1 a hammer. Wire ot' the description invented by me can have thethread raised upon it at any angle to the line of its length that may be required to adapt it perfectly to the mode ot' driving referred to.

The word wire is used in this specification in its ordinary sense to describe a small metallic thread made by drawing.

I wish it also to be understood that the ob ject of this invention is to produce a wire which can be applied to the production of screwpegs to be used either i'or machine or hand pegging in the manufactureot1 boots andshoes. Spoolsofsueh wir e can be used as waxed thread -is used in the thread-pegging machines.

line of the wire as to adapt screws or pins cutv from it to be driven by percussion in the direction of their length instead of by turning, as screws arc usually driven, substantially as set forth.

The above specilication ot' my said invention signed and witnessed, at Boston,tl1is 29th day oi' May, A. D. 1868.

ELMER TOWNSEND.

Witnesses WILLTAM W. SWAN, CHAs. F. STANsBURY.

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