US484204A

US484204A - Nut-lock

Info

Publication number: US484204A
Authority: US
Publication date: 1892-10-11
Anticipated expiration: 1909-10-11

Description

(No Modem J. H. HUBER 8v G. M. ERVIN.

NUT LOCK.

N0. 484,204. L Patented Oct. 11,1892..

WITNEEEES. INVENIDR 5' ATI n RNE Y `'UNltTED STATES PATENT i OFFICE. i

JOHN H. HUBER AND GEORGE M'. ERVIN, OF J OHNSTOWN PENNSYLVANIA.

LOCK.

SPECIFICATION forming part of Letters Patent No. 484,204, dated October 11., 1892.

v Application filed April 18. 1892.

Ib a/ZZ whom, it may concern:

Be it known that We,` JOHN H. HUBER and GEORGE M. ERVIN, citizens of the United States, residing at Johnstown, in the county of Cambria and State of Pennsylvania, have invented a new and usefulNut-Lock; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to 1o which it pertains to nlake and use the same.

The object of our inventionis to provide a cheap and effective nut-lock by means of an internal key-seat in the nut and a key for the same, such key having teeth for cutting a seat t5 in the screw-threads of the bolt, the key having also an elastic finger for engaging an external projection or depression of the nut to hold the key fronl backing.

In the accompanying drawings, Figure 1 is zo a side elevatin, partly in section, of a nut.- lock embodying our invention. Fig. 2 is an enlarged side elevation of the key detached. Figs. 3 and #t are respectively end and side elevations of the nut.

A represents the bolt, B the nut, and C the key. The bolt and nut are screw-threaded in the usual manner, and the nut is provided with a key-seat, as at b, and with an external projection or depression, llsually a notch, as

3o at b', punched or cut out of the corner of the nut that is next adjacent the key-seat aforesaid.

Key O is provided with teeth, as at c, and with an elastic locking-tinger c. The teethc maybe quilesmall-in fact, are usually about like the teeth of a coarse tile. In drivingthe serial No. 429,623. (No model.)

but a slight seat for the key to prevent the nut from turning. In driving in the key, whereby is effected the cutting of the seat for the key, a clean cut is made, aswith a tile or milling-tool, during which the threads of the bolt are, of course, supported on either side and next adjacent the cutting, so that the threads of the bolt are not distorted or materially injured in the operation. The free end ot' the locking-finger c by engaging notch b of the nut holds the key from backing. By inserting a pointed tool between the end of the nut and finger c the latter may be snubbed back and disengaged from the notch, and the same movement of the tool will back over, as the nut from timeto time is turned more or less in tightening the nut. Keys C, suitable for carriage work, would be tiny afdistigure the work. By means of suitable dies and machinery these keys may be cut from sheet or thill plate steel With about the same facility as nails are cut, and hence the initial cost of these keys are tritling and when applied as aforesaid will be found effective locks for nuts.

Whatwe claim is- A nut-lock comprising a nut having an internal key-seat extendinglengthwise thereof, sllch nut having an external notch or depression, a key constructed to tit such key-seat, such key having teeth for cutting a key-seat in the opposing screw-threads of the bolt lengthwise the latter,such key having also an elastic locking-linger for engaging the external notch or depression of the nut, substantially as and for the purpose set forth.

JOHN H. HUBER. GEORGE M. ERVIN..

Witnesses:

WM. A. DONALDSON, W. H. MOORE.

out the key. The key may be used over and.

fairs,hardly noticeable, and hence would noty