US359385A - Nut-lock - Google Patents

Description

-(No Modem" P. J. DAMBACH' & J. S. HANNAN.

NUT LOCK.

Patented Mar.v 15, 1887.

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NIT-ED STATES PATENT FFICEs PHILIP J ACOB DAMBACH AND JOHN S. HANNAN, OF SHAYVNEE, OHIO.

NUT-LOCK.

SPECIFICATION forming part of Letters Patent No. 359,385,- dated March 15, 1887.

Application filed November 9, 1886. Serial No. 218,406. (No model.)

To all whom, it mcty concern.-

Be it known that we, PHILIP J AOOB DAM- BAOH and JOHN S. HANNAN, citizens of the United States, residing at Shawnee, in the county of Perry and State of Ohio, have invented new and useful Improvements in Nut- Locks,of which the following is aspecification.

This invention has for its object to provide novel and efficient means for locking nuts on screw-bolts for securing various objectssuch as the fish-plates of railway-rails.

Theinvention consists in the features of construction and combination of devices herein-, after described and claimed, reference being made to the accompanying drawings, inwhich-- Figure 1 is a side elevation showing the invention applied to the bolt and nut for securing the fishplates of a railway-rail; Fig. 2, a'

sectional view taken on the line as 00 of Fig. 1; Fig. 3, detail views of the ratchet-disk and the cap for the nut; Fig. 4, a detail perspective view of the flanged plate in which the ratchetdisk is swiveled; and Fig. 5, a detail perspective view showing the cap adapted for a square or four-sided nut.

In order to enable those skilled in the art to make and use our invention, we will now describe the same in detail, referring to the drawings, where- The numeral 1 indicates a square or similar shaped plate having its' top and side edges provided with lateral flanges 2,to rest against the fish-plate 3, and form in connection there with and the base or flange of the rail or other object a closed casing. A pawl, 4, is pivoted to the inside of the plate, andisfurnished with a tail or finger piece, 5, projecting through an apertnre,6, in one of the side flanges, 2. The flanged plate is provided at its center with a circular orifice, 7 ,in which are swiveled or j ournaled to rotate the-ratchet-disk 8 and nut-cap 9, as we will now explain. The disk 8 is pro vided on its periphery with the ratchet-teeth,- and from one side projects a circular sleeve or hub, 10, located and adapted to rotate in the circular orifice of the plate, the ratchet-disk bearing against the inside of the latter. The nut-cap 9 is placed at the outside of the plate, and is connected with the sleeve or hub of the ratchet-disk in any suitable manncr-as, for example, by screws or pins 11 entering the sleeve or hub, and having heads 12 engaging thebase 13 of the nut-cap. The pawl 4 engages the ratchet-disk and prevents its backward rotation, while permitting its free forward rotation for the purpose of tightening up the nut 14: on the screw-bolt 15.

If the nut be hexagonal, the nutcap is furnished with a hexagonal cavity to receive it; but obviously where the nut is of other formas, for instance, square or four-sided-thenutcap will be correspondingly formed to receive it, as in Fig. 5.

The ratchetdisk and nut-cap are provided with orifices to permit them to pass onto the bolt, after which the nut is applied and entered into the nut-cap. The rotation of the nut in screwingit up rotates the nut-cap, and the lat ter in turn rotates the ratchet-disk until the nut is screwed to the proper position,where it islocked by the pawl engaging the ratchet-disk. The flanged plate during such movements of the ratchet-disk and nut-cap remains stationary as regards any rotation, such plate simply advancing along the bolt. If it is desired to loosen or remove the nut for any purpose, the tail or finger piece of the pawl is operated to disengage the latter from the ratchet-disk, when obviously the nut-cap and disk can be turned backward on the bolt.

WVhen the parts are in position to lock the nut in its position, the ratchet-disk is inclosed and snow and dirt prevented from gaining access thereto,which is important, in that the disk is preserved in correct working order.

Obviously the nut-cap need not embrace or engage all sides of the nut,it only being necessary to provide such a construction that the cap will engage the nut and be rotated when the nut is turned.

The nut-locking devices described can be applied to the fastening-bolts of ordinary fishplates and other objects without changing the construction of the latter, which isanimportant advantage over such ratchet-nut looks as require some specially-constructed device to engage'thefish-plate or other object to be secured.

The invention is applicable to nearly, if not all, places where a nut is to be locked on a screw-bolt.

Having thus described our invention, what we claim is- 1. The combination, in a nut-lock, of a Stationary flanged plate having a circular orifice, a

ratchet-disk and nut-cap located, respectively, on opposite sides of the plate,and rigidly connected together and swiveled to rotate in the orifice therein, and a pawl for engaging the ratchet, said nut-cap receiving within it the nut of the bolt, whereby the nut, cap, and disk rotate together, substantially as described.

2. The combination, in a nut-lock, of a stationary flan gcd plate having acircular orifice, a ratchet-disk having a sleeve or hub rotatable in said circular orifice, a nut-cap rigidly connected with the sleeve or hub, and a pawl for engaging the ratchet-disk, said nut-cap receiving within it the nut of thebolt, whereby the nut, cap, and disk rotate togcther,substantiall y as described.

3. The combination, in a nut-lock, of a stationary plate having a circular orifice and edge flanges, one of which is provided with an aperture, and a pawl pivoted to the plate and 20 havinga tail or finger piece projecting through the aperture in the flange, with the ratchetdisk and nut-cap located,respectively, at opposite sides of the plate, and rigidly connected together and swiveled to rotate in the orifice 25 therein, said nut-cap receiving within it the nut of the bolt,whereby the nut, cap, and disk rotate together, substantially as described.

In testimony whereof we aflix our signatures in presence of two witnesses.

PHILIP JACOB DAMBAOH. JOHN S. HANNAN.

\Vitnesses:

PATRICK F. CLARK, SOLOMON C. O. Srnnvnn.

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