USRE7507E - Improvement in nut-locks - Google Patents

Description

K. C. N A Y L O R.

Assjgnor of one-half interest to BENJ. L. COOK.

NUT-LOCKS.

- Reissued Feb. 13,-1877.

. bolt.

fl me. l lililiilg hosep t abov the n w bolt.

UNITED STATES PATEN T ()FFIGE.

KINZEY O. NAYLOR, OF NEW SHARON, ASSIGNOR OF ONE-HALF INTEREST TO BENJAMIN L. 000K, OF OTTUMWA, IOWA.

IMPROVEMENT IN NUT-LOCKS.

Specification forming part of Letters Patent N 0. 181,589, dated August 29, 1876 reissue No. 7,507, dated February 13, 1877; application filed January 27, 1877.

useful Improvements in Nut-Locks; and I hereby declare the following to be a full, clear, and exact description thereof, which will enable others, skilled in the art to which my invention appertains, to make and use the same, reference being had to the accompanying drawing, forming part of this specification, in which- Figure 1 is a central section of the nut, showing its position when adjusted upon the Fig. 2 is a transverse section of the drawn across Fig. 1; and Fig. 3 is a central section'of the nut proper detached from the Like letters of reference indicate like parts.

The object of my invention is to provide a nut. so arranged as to admit of being locked in position upon the bolt by clamping the llltto the bolt, and to that end my invention consists in providing 'the nut proper with an elongated tapering sleeve, which is screw-threaded internally and externally, the internal thread running inan opposite direc' tion to the external thread, in combination with a clamp-nut mounted upon saidsleeve, so that whenthe clamp-nut-is turned upon the sleeve to move it from the nut proper, it will ride up the tapering partof the sleeve and compress the same against the bolt, thereby increasing theirictional contact of'the bolt" and sleeve, andsoas to prevent the nut P op om beinsl n dj pb e belt or from becoming loosened;

"In the drawing-A representsghe bolt, which is made of iron andof the sual construction. 0 represents the nut proper, which is made in any suitable form, laterally, to receive the wrench for turning the nut to its place upon the bolt. D represents an elongated sleeve, formed as a part of the nut, and projecting from the back thereof in a plane vparallel with the plane of the sides of the not, and is screw-threadedinternally to corrhpqnd with thesm'ew-thread in the nut proper andwith the screw-thread on the bolt,and-is slotted longitudinally as shown at] a, and so as to form two parts or jaws, .d d, adjusted to test against the threaded portion of the bolt. The sleeve is also made tapering, increasing in diameter from the nut proper, or, in other words, the wall of the sleeve is made thicker at its outer end than at the junction with the outer end will exceed its diameter at its junction with the nut, and is screw-threaded externally, as shown in Figs. 1 and 3, and such exterior thread is formed in a direction opposite to the interior thread of the sleeve and nut. i) represents the clamp-nut, which is screw-threaded internally to correspond with-the exterior thread on the sleeve, and the diameter of its opening is equal to the smallest diameteroi' the sleeve.

In the application of my said improved not lock, the clamp-nut D is first screwed upon the sleeve 1) until in close proximity to the back of the nut-U, The nntO is then screwed upon the bolt to the position in which it is to remain at rest, when the clamp-nut D is turned on the sleeve in the direction to move it from the nut (J, and so as to ride up the taper of the sleeve. and compress the jaws and.thereby increasing the frictional contact of the several parts, and so as to prevent the nut G from being turned backward on the bolt.

The object of forming theexternal screw.

to the internalscrew-thread in the sleeve and nut proper, is to prevent said nut from being turned backward on the bolt 'when'the clampnut is being turned toward the outer end of the sleeve-; and the object of slotting the sleeve, as described, is to allow. its ogter end to be more'ireelyco'utracted by the action of the clamp-nut. Having thus described my invention, what I claim as new,.an d desire to secure by Letters Patent, is-

1. The nut (3, provided with the slotted aness at the end farthest from the nut, and

screw-threaded interuall'yand externally, in

nut, so that when the nut is screwed upon the bolt, the diameter of ,the sleeve at its' d d firmly between the bolt and clamp-nnt,.

thread on the sleex ein' a direction opposite sleeve 1) thewall thereof increased in thick combination with the clamp-nut D. snbstan tially as and for the purpose specified.

2. The combination, with the clamp-nut D, of the nut 0', provided with the slotted and tapering sleeve D, having the internal screwthread running in opposite direction to the external screw-thread, substantially as and for the purpose specified.

3. The nut 0, provided with-the slotted sleeve D, having the exterior screw-threads running in a direction opposite to the interior. I screw-threads, in combination with the clampnut D, substantially as and for the purpose specified.

KINZEY O. NAYLOR. Witnesses:

O. M. LADD,

W. M. 000K.

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