US736368A

US736368A - Locking-nut.

Info

Publication number: US736368A
Application number: US3946000A
Authority: US
Inventors: Melvin E Donally
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-12-11
Filing date: 1900-12-11
Publication date: 1903-08-18
Anticipated expiration: 1920-08-18

Description

, UNITED STATES Patented August 18, 190?.

PATENT ()FFIOE.

MCKINLEY, OF NEW YORK, N. Y.

LOCKING-NUT.

SPECIFICATION forming part of LettersPatent N0..736,368, dated August 18, 1903.

Application filed December 11, 1900. Serial No. 39,460. d (No model.)

To all whom it may concern.-

Be it known that I, MELVIN E. DONALLY, a subject of the Queen of Great Britain, residing in the borough of Brooklyn, city of New York, and State of New York, have invented of construction and combination of parts hereinafter set forth and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a bolt, showing the locking-nut in section secured thereto in its operative position. Fig. 2 is atop view of the locking-nut shown in Fig. 1 with the bolt in section. Fig. 3 represents a side view of the spring. Fig. 4: represents a top view of another form of locking-nut with the bolt in section. Fig. 5 represents a vertical section of a locking-nut on the line 5 5 in Fig. 4 With the bolt in elevation. Fig. 6 is a side View of the washer forming part of the locking-nut shown in Figs. 4 and 5. Figs. 7 and 8 represent a top view and a vertical section, respectively, of another form of the locking-nut, the bolt being shown in section and in elevation in the respective views. Fig. 9 represents a top view of another form of locking-nut with the bolt in section. Fig. 10 represents a vertical section of the locking-nut shown in Fig. 9 with the bolt in elevation. Fig. 11 represents a section on the line 11 11 of Fig. 10.

The locking-nut consists, essentially, of a sleeve or washer a and a spring I). The washer incloses all or a portion of the spring and is provided with a central opening the diameter of which will permit the spring to thread onto the bolt, but will prevent said spring from spreading and slipping past the threads of the bolt when pressure is brought to bear against either the spring or the washer, the opening or bore being smooth or threadless and hav ing no engagement with the bolt. Preferably the spring consists of two or more complete turns or coils; but a greater number of turns maybe used, if desired. The washer may be ing drawings. Fig. 1 represents a washer havmg a longitudinal groove or slot 0 formed therein. The wall of the central opening of the washer is inclined or beveled at or near the face of the washer nearest the head of the bolt to form a bevel or shoulder d therein. The ends of the spring are bent outward slightly to engage in the groove or slot provided in the wall of the recess, and the lower or inner end of the springthat end nearest the head of the bolt-remains permanently in engagement with the groove or slot, so that the spring can be turned off from the bolt with the washer. The opposite or outer end of the spring is engaged in the slot only when it is desired to spread the spring so that it can be threaded onto the bolt. \Vhen the washer and spring are turned up to the desired position, the upper end of the spring is slipped out of engagement with the slot and the spring seats tightly upon the bolt. In case the groove or slot is not formed in the wall of the recess a stud or projection e, as shown in Figs. 7 and 8, is formed on the top of the washer and is adapted to engage the upper end of the spring and thread same onto the nut. Since no means are provided in this construction for spreading the spring, the lower turn of the coil thereof is preferably made slightly larger than the adjacent turns and of sufficient diameter to thread onto the bolt, as shown in Fig. 3. Preferably a single coil is used with the washer shown in Figs. l to 6, inclusive, and such washer is provided with a double or V- shaped slot f. The ends of the. spring are turned outwardly and engage in this slot, which may be provided with notches g to hold the spring spread and in its threading position. As the washer and spring are threaded onto the nut the ends of the spring are disengaged from the notches and are gradually forced toward each other at or near the junction of the two branches of the slot, thereby drawing the ends of the spring together and forcing the spring into engagement with the bolt. In the construction shown in Figs. 9 to 11 the washer is countersunk, so that the upper part of the central opening will have a larger diameter than the lower part.

ICO

a washer having a smooth bore to encircle the The diameter of the lower part is slightly greater than the diameter of the bolt, so that when the opening is arranged eccentric to the bolt the end of the wire can be inserted between the bolt and the wall of the opening, as shown in Figs. 10 and 11. Preferably this washer is not formed with a groove or slot, and consequently is provided with a lug or projection on its top, so that the spring can be threaded onto the bolt. The beveled portion of the washer, or the shoulder formed therein, prevents the washer from being removed from the spring, and in case the washer is beveled any strain or stress brought against the washer except in a direction at right angles to the axis of the bolt tends to force the spring more closely into engagement with the bolt, thereby locking both the spring and washer securely in their adjusted positions. The washer and spring may be secured together as a single commercial article and can be assembled at the place of manufacture and shipped to be used as desired. Since no threads are provided on the washer, the locking-nut can be used upon bolts of slightlyvarying diameters and of any pitch of thread. No special tools 01": any kind are required to apply the same to the bolt other than the on dinary tools necessary in applying nuts of the usual construction.

I claim as my invention 1. A locking-nut, comprising a spring, and

spring and prevent the same from disengagement from the threads of the bolt, and formed to engage the spring to prevent relative lon gitudinal movement, said washer being also provided with means to engage the spring and spread the same so that it will thread onto a bolt, substantially as described.

2. A locking-nut, comprising a spring, and a washer having a smooth bore to encircle the spring and prevent the same from disengagement from the threads of the bolt, and formed to engage the spring to prevent relative longitudinal movement, said washer being provided with means to engage the spring to remove the same from the bolt with the washer, substantially as described.

3. In a locking-nut, the combination with a bolt, of a spring having its lower turn of greater diameter than the adjacent turns engaging with the threads of said bolt, and a washer encircling the spring and provided with means to thread the same onto the bolt, substantially as described.

4. In a locking-nut, the combination with a bolt, of a washer having a central opening provided with a double slot communicating with said opening, and a springencircling the bolt and having its end engaging in said slot, substantially as described.

In testimony whereof I sign this application, in the presence of two witnesses, this 6th day of December, 1900.

MELVIN E. DONALLY.

Witnesses:

A.'N. JEsBERA, LUCIUS E. VARNEY.