US405737A

US405737A - Axle-box

Info

Publication number: US405737A
Authority: US
Publication date: 1889-06-25
Anticipated expiration: 1906-06-25

Description

(No Model.)

B. T. HENRY.

AXLE BOX.

No. 405,737. Patented June 25, 1889.

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UNITED STATES PATENT OFFICE.

BENJAMIN TYLER HENRY, OF NEIV HAVEN, CONNECTICUT.

AXLE-BOX.

SPECIFICATION forming part of Letters Patent No. 405,737, dated June 25, 1889.

Application filed February 6, 1889. Serial No. 298,793. (No model.)

To aZZ whom it may concern:

Be it known that I, BENJAMIN TYLER HENRY, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Axle-Boxes; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to an improvement in that class of axle-boxes which are provided with extension attachments, the object of the present invention being to adapt them to resist turning in their hubs when their extension attachments are adjusted.

With these ends in view my invention consists in certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claim.

In the accompanying drawings, Figure 1 is a View, partly in side elevation and partly in central longitudinal section, of an axle-box embodying my invention; and Fig. 2 is aview of the box in rear elevation.

As herein shown, the outer end of the box A is externallythreaded to adapt it to receive an externally-threaded extension-nut F, having its outer face provided with a recess G, which receives the flanged inner end H of the nipple-nut I, screwed upon the outer end of the axle-arm J, which is oppositely threaded from the outer end of the box. The said extensionnut is held in place upon the box solely by the friction between its threads and those of the same, and therefore must be fitted Very tight, so that when it is adjusted upon the box considerable twisting strain is thrown thereupon. The ordinary axle-box is not adapted to meet this strain, for which some adequate provision must be made. I have provided for it by forming in the inner or larger end of the box a circular series of external corrugations B, placed side by side parallel with the length of the box, and each beveled at its forward end, as at C, and there merging into a narrow centering-shoulder D, the diameter whereof is less by the depth of two corrugations than the diameter of the corrugated part of the box. The ordinary retaining-ears E E are located directly in front of this shoulder. If desired, they may be left off.

To set my improved axle-box into a hub, it is slipped into the bore of the same and centered therein by its centering-shoulder and then driven home to embed the corrugations in the wood, into which an easy start is made by the beveled surfaces at the forward ends of the corrugations, which hold the box in the hub and prevent its turning therein under the severest twisting strain which may be imposed upon it by the adjustment of the friction-tight extension-nut.

Having fully described my invention,what I claim as new, and desire to secure by Letters Patent, is

The combination, with an axle-box having its outer end exteriorly threaded and its extreme inner end provided with outwardlyprojecting retaining-points, of a friction-tight extension-nut mounted upon its outer end for adjustment thereon to vary its virtual length, the said retaining-points sinking into the hub and firmly holding the box against turning therein under the severe twisting strain imposed upon the box by turning its frictiontight nut, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

BENJAMIN TYLER HENRY.

WVitnesses:

CHAS. B. SHUMWAY, WM. J. DE MAuRIAo.