US461428A - Under-frame for cars - Google Patents

Description

(No Model.) 2 sheets-sheet 1.

S. FOX. UNDER FRAME FOR GARS.

Patented Oct. 20, 1891.

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(No Model.) 2 Sheets-Sheet 2. S. FOX. UNDER FRAME PORl GARS.

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UNITED STATES PATENT OFFICE.

SAMSON FOX, OF LEEDS, ENGLAND,ASSIQNOR TO TIIE FOX SOLID PRESSED STEEL COMPANY, OF CHICAGO, ILLINOIS.

UNDER-FRAME FOR CARS.

SPECIFICATION forming part of Letters I atent No. 461,428, dated-October 20, 1891.

Application filed December 4, 1890. Serial No. 373,597- (No model.)

ing drawings.

The under-frames of railway and other roll-v ing-stocksuch as are used on tramways and common roads--are ordinarily constructed of a combination of timber and metal work, and

arergenerally made heavy in order to obtain the necessary strength and rigidity, and are usually somewhat costly. Sometimes, however, such under-frames are constructed of ordinary channel iron or steel with the end attachments made by rivets or by cutting and welding the ends of the bars; and my present invention relates to a method of manufacture and in particular to a Way of forming a solid end on channelbars for the purpose' of strengthening those parts and forming a convenient method of joining the various portions of such under-framing together. For this purpose I take channel iron or steelof suitable length to form the respectively required part or parts, such channels being either rolled as bars or pressed or flanged from flat plates, heat the end or ends thereof, place the metal on a suitable die or mandrel, and press or turn one or both of the ends to a right or other angle with the other part in such wise as to form a solid end or solid ends thereto-that is to say, a part or parts at the required angle or angles, but in one with the channel itself.

It is advantageous to employ for pressing or forming the ends of such channel-bars machinery or apparatus of the kind forming the subject-matter of another application by me for Letters Patent led on the 4th day of December, 1890, and serially numbered 373,595, which machinery or apparatus is not herein claimed as constituting part of my present invention.

In order that the manner of carrying my invention into practical eiect may be clearly understood, I now proceed to describe the section at fu fu of'Fig. l.

-pressed plate.

same in detail with especial reference to examples illustrated in the drawings hereunto annexed, in which- 5o Figure 1 is a half-sectional plan, at the line :I: of Fig. 2, of an under-frame constructed of solid-end channel-barsaccording to my invention. Fig. 2 is a half-sectional elevation at the line y y of Fig. l. Fig. 3 is 'a cross- 55 Fig. Ll is a cross-section at z .e of Fig. 1. A

da are the sole-barsg b b, the head-stocks;

c c, the cross-bars; d CZ, the end longitudinals, and e e,'center lon gitudinals. As will be seen, 6o all these are of channel-section, and each has both its ends turned to a right angle with the bar itself, which is effected, as already described, by heating the ends, then placing on a suitable mandrel or die, and by suitable 6 5 tools pressing to the required angle, so as to be suitable for attachment to another component part of the under-frame,dispensing with the use of separate angle-pieces at the points of connection, and dispensing also with any 7o welding at the corners of the bar. rPhe sev eral parts may be connected together by bolts or rivets. f f are small brackets made of g g are axle-guards.

Fig. 5 is a half-plan. Fig. 6 is a front View, 75 partly in section, on the line o o of Fig. 5, and Fig. 7 is a cross-sectional view on line w w of Fig. 5, illustrating another design of underframe, wherein the sole-bars@ a are formed of oppositely-arranged channel-bars, each 8o having its ends vturned to a right angle, and the juxtaposed ends of two bars thus formed being fitted into the head-stocks b b, which are of ordinary channel iron or steel. The cross-bars c o and the center and end longi- 85 tudinals d d and e. e are also composed of oppositely-arranged channel iron or steel bars with ends turned to a right angle, as specified. :v are strips of plate to which the ends of the various parts are bolted or riveted at the 9o junctions. 'y is a piece of plate riveted to the sole-bar to stiften it. It will be observed that these closed end bars are formed with portions projecting at right angles to the back bodies of the beams and beyond the edges of the beams, substantially as described.

In testimony whereof I havesigned my name to this speciioation in the presence of two subscribing witnesses.

SAMSON FOX.

Witnesses: S. O. EDMoNDs, WM. A. PoLLocK.

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