US399013A

US399013A - Vehicle-axle

Info

Publication number: US399013A
Authority: US
Publication date: 1889-03-05
Anticipated expiration: 1906-03-05

Description

(No Model.)

C. B. BROWN.

VEHICLE AXLE.

Patented Mar. 5, 1889.

No. 399,0I3.

N4 PETERS. Fhmm-Lnhegupmn washngxon, D. C,

UNITED STATES ATnNT trice.

CHARLES B. BROY, OF CHICAGO, ILLINOIS.

VEHICLE-AXLE.

SPECIFICATION forming part of Letters Patent N0. 399,013, dated March 5, 1889, Application iiled October l, 1888. Serial No. 286,833. (No model.)

To all whom it may ootce-n:

Be it known that I, CHARLES B. BROWN, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented anew and useful Improvement in lagon-Axle Bars, of which the following` is a specification.

My invention relates to iron axles for wagons.

The obj ect of my invention is to provide an axle-bar of a simple, light, and strong construction.

In the accompanying drawings, which form a part of this specification, andin which si1nilar let-ters of reference indicate like parts, Figure l is a side elevation of a device elnbodying my invention. Fig. 2 is a perspective view of a short section of the axle-bar, showing the saine before its ends are shaped to enter the skein. Fig. 3 is a plan View showing one end of the finished axle-bar- Fig. 4,- is a erosssection on the line e el of Fig. 3, and Fig. 5 is a orossseotion on line 5 5 of Fig. 3.

In said drawings, A represents an iron bar havingthree webs, a, a', and d2, with two channels, a3 ct", between them. At each end of the axle A the two outer webs, o. ft2, are squeezed into contact with the iniddle wel), et', and drawn out to form the solid tapering end a of the axle, which lits in the skein B. This tapering solid end of the axle a5 is preferably rectangular in cross-section. The extreme end of the axle is drawn out into a round rod, u, which is l'urnisheiil with screw-threads al to receive the nut l). The webs (t o? at the point where they are crowded together are somewhat curved, as shown at c. The outer walls of the webs o d? are at right angles to the bottoni face of the bar A; but the webs o d, as well as the middle web, a', are sonrewhat tapering in eross-seclion, as is clearly shown in Fig. .i. lhese webs may be formed upon the bar by rolling; or, if desired, the middle web may be welded in place between the two outer webs. The middle web serves to give, in connection with the two outer webs, great strength to the axle, and also to give sufficient body to properly fit within the socket of the skein. It also strengthens the axle at the inner end of the skein, which the point where ordinary axles customarily break.

I hereby disclaim the devices shown and del scribed in Patent No. 36,914, to Post, of No Veniber Il, 1802; No. 243,730, io Schreyer, ot' July 5, 1881, and. No. 308,531, to Theren, of November 25,1884.

In my invention the channel-bar axle Vis pro vided with three webs extending frein one end to the other, the three webs being squeezed or forced together at each end of the bar to form the tapering ends or spindle port-ion of the axle. By reason of the central web the hollow space between the outer webs is diminished, so that the iwo outer webs when crowded against this inner central web will forni a gradual curve, as indicated in Fig. 3 of the drawings, and give this shank portion of the axle1 which Aunites the niain or iniddle part to the spindle part, a forni of great strength to resist both vertical and lateral strains. This is a matter of the greatest importance in the practical construction of the axle, because it is this shank portion of the axle between the end of the skein and the hound-bolt wherein the axles usually spring or break. This third or central web also at the saine tiine strengthens the en tire axle. Vhere, for example, as in the Therien patent, No. 308,531, the axle is made of a channel-bar having but two webs, the axles I, lind from practical experience in their inaiiufacture and use, are always giving out either by becoming sprung or broken at the shank port-ion. This is due to the fact that the hollow space between the two webs of the Therion patent axle necessarily so great that the two webs thereof when crowded together lo form the .solid spindle portion of the axle necessarily forni a sharp bend or shoulder at the point whore the spindle portion unites with the axle. This will be apparentto those skilled in the art from amore inspection of Figs. 2 and 3 of thefl`h'erien patent. ln endeavering toroniedy this deficiency or defect in the 'lherion axleI nia-de this present iinprcwenient, my first experiment being to weld two short central webs in the Therien axle, one near each end thereof or at the shank portion thereof, so that the outer webs might be crowded against the central short webs without forming1 an abrupt bend or shoulder. By further experiments I found that still bet-ter results could be producedby forin- IOO ing the aXle with a central web throughout its entire length. Where the three Webs are crowded together, as indicated at Fig. 3 and in the cross-section, Fig. 5, great strength is given to the solid tapering spindle portion of the axle, the effect being similar, or on the same principle as applies Where a number of boards set edgewise are bolted or secured together.

Another diiiiculty which I found in the practical construction of the Therien axle Was the frequent breakage of the cast skeins which t therein, when the axles Were in use, by reason of the knife-like bearing of the two widely-separated Webs of the Tllerien axle on the shell of the skein. My central Web divides the space between the two outer Webs, and the three Webs combined give in effect a lat bearing upon the shell of the skein very similar t0 What it would be if the axle were made of a solid instead of a channel bar.

I claim* 1. The rolled channel axle-bar having three Webs extending from one end of the axle to the other, said Webs being squeezed together at the ends of the bar to form tapering ends, said tapering ends uniting with the middle part of the axle on gradual curves Without forming abrupt bends or shoulders, substantially as specified.

2. The combination, with an axle-bar having three parallel vertical Webs squeezed together at the ends of the axle, of axle-skeins fitting upon the tapering ends of said axle-bar, said tapering ends uniting with the middle part of the axle on gradual curves Without forming abrupt bends or shoulders, substantially as specified.

. CHAS. B. BROWN. v Vitnesses:

l-I. M. MUNDAY, EDMUND ADcocK.