US718171A - Carriage-axle nut. - Google Patents

Description

No. 713,171. I PATENTEE 'JAN.13, 1903. N. TEBO E T. E. EEENGE.

CARRIAGE AXLE NUT. i APPL-IGA'TION FILED SEPT. 5, 1901.

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NITED STATES PATENT OFFICE.

NAPOLEON TEBO AND THEODORE B. FRENCH, OF GRAFTON, MASSACHUSETTS.

CARRIAG E-AXLE NUT.

SPECIFICATION forming part of Letters Patent No. 718,171 dated January 13, 1903 Application iilcd Septcmherllgl. Serial No. 74,439. (No model.)

To a/ZZ whom t may concern.-

Be it known that we, NAPOLEON TEBO and THEODOEE B. FRENCH, citizens of the United States, residing at Grafton, in the county of Worcester and State of Massachusetts, have invented a new and useful Carriage-Axle Nut, of which the following is a specification.V

This invention relates to an `attachment for carriageaxles which is designed to provide means for tightening the washers employed at the end of wheel-hubs. A

The especial object of this invention is to provide a simple, efficient, strong, and inexpensive attachment for carriage-axles, which can be applied to carriage-axles which are alreadyin use and which will afford means for tightening the Washers, and which will have a wide range of adjustment, so that comparatively thin Washers may be employed, even when the wheel-hub is shortened or worn down to a considerable extent. A

To these ends this invention consists of the axle attachment and of the combinations of an axle therewith, as hereinafter described, and more particularly pointed out in the claim at the end of this specification.

In the accompanying drawings, Figure l is a sectional view of a wheel-hub, showing an attachment constructed according toV this invention applied to the axle thereof. Fig. 2 is a perspective view of the bushing which is threaded onto the end of the axle. Fig;` 8 is a perspective View of.' the look-nut for holding the parts in their adjusted position. Fig. 4 is a perspective View of the washer-retaining nut, and Fig. 5 is a perspective view of the leather washer.

In ordinary carriage-wheel construction the wheel is usually held in place by a single nut, which is threaded onto the end of the axle witha right-hand or left-hand screw-thread,`

worn comparatively thin or when the ends of the wheel-hub itself are worn out to a con,-

siderable extent, it frequently happens that a washer of undesirable thickness or two Or more Washers have to be employed on the outersiderof the wheel. The use of thick `leather washers or of two or morewashers together is objectionable because of not providing a firm end bearing for the wheel and on account of the liability to shrink or swell, according tothe amount-Of oil which is used on the axle. A

The especial object of the present invention is therefore to provide an attachment for carriage-axles which will permit of an adjustment, so as to avoid rewashering the wheel at the frequent intervals now required, and which will permit the use of comparatively thin Washers even when the ends of the Wheelhub are more or less worn.

Referring to the accompanying drawings and in detail, as shown in Fig. l, A designates an ordinary Wheel-hub, which is provided with a metal bushing B. Extending through the hub is an ordinary carriage-axle C, having collars for holding the inner Washer E in place and for forming a groove for retaining oil. At its outer end the axle C is provided with a threaded section F, and these parts may be of ordinary or approved construction and need not be herein described at length.

An attachment for an ordinary carriageaxle constructed according to this invention comprises a bushing 10, which isthreaded onto the end of the axle C. As illustrated most clearly in Fig. 2, the bushing 10 is provided with a wrench-section l1 and with oppositely-threaded sections 12 and 13.

As shown most clearly in Fig. l, the outside diameter of the bushing 10 is preferably ,slightly larger than the diameter of the axle C. `Threaded onto the bushing 1 0 is the main nut 14, having a pocket on its inner face for receiving a comparatively thin leather washer l5. In this construction it will be noted that the inside diameter of the main nut 14 is slightly larger than the body portion of the axle O. Ve regard this as an especially important feature of our construction, because this permits the main nut 14 to be screwed IOO back over the end of the body portion of the axle, allowing a tightening up of the Wheel even when the barrel portion of the hub has been Worn at its ends, so as t0 render the same considerably shorter than the body-portion section of the axle. Threaded onto the section 12 of the bushing 10 is a lock-nut 16 for holding the main nut 14 in its adjusted position.

As shown most clearly in Figs. 3 and 4, the body portions of the nuts 14 and 16 are preferably hexagonal, so that they may be turned by an ordinary carriage-wrench, and the engaging faces of said nuts are preferably knurled or provided with ridges for locking the ends more firmly together when tightened together. By means of this construction it Will be seen that we have provided a simple and eiicient construction for tightening a carriage-wheel Without the necessity of rewashering the same, and as the main nut 14 can be threaded back over the body portion of the axle C we have provided a construction by means of which narrow hubs or hubs the ends of which are more or less worn may be used in connection with comparatively thin washers.

We are aware that changes may be made in practicing the invention by those who are skilled in the art without departing from the u scope thereof as expressed in the claims. We do not wish, therefore, to be limited to the construction We have herein shown and described; but

What we do claim, and desire to secure by Letters Patent of the United States, is-

In a construction of the class described, the combination of an axle, a bushing having interior screw-threads tting onto the threaded end of the axle and having oppositely-inclined exteriorly-threaded sections 12 and 13 having a reduced wrench-section 11, a stop-nut 16 which can be applied or removed over the Wrench-section 11, and a main nut 14 holding a leather washer in place and having an inside diameter greater than the diameter of the body portion of the axle, so that it may be turned back over the same, substantially as described.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

NAPOLEON TEBO. THEODORE B. FRENCH.

Witnesses:

LoUIs W. SOUTHGATE, HERBERT L. PUTNAM.

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