US207998A - Improvement in changeable-gage trucks - Google Patents

Description

2 Sheets-Sheet?. J. TIMM'S. Changeable-Gage Truck.

n Pmn'fenrSept.10.1878:`

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NTTED y TATEs PATENT TTTGT.;

JAMEs TIMMs, or MALTA, omo, Assrcivon oF oNnHALF His RIGHT ToV A. J. Monats, or sAMn. rLAon.

IMPROVEMENT IN CHANGEABLE-G'AGE TRUCKS.

Specification forming part of Letters Patent No. 207,998, dated September 10, 1878 application filed June 22, 187e.

To all whom it may concern:

Be it known that I, J AMES TIMMS, of Malta, in the county of Morgan and State of Ohio, have invented a new and valuable Improvement in Transfer Devices for Railway-Tracks of Different Gages; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the'an nexed drawings, making a part of this speci-` fication, and to the letters and iigures of reference marked thereon.

Figure l of the drawings is a top view 0f my improved car-truck. Fig. 2 is a transverse strong wooden or metallic frames, B, properlyV braced together, and, if desired, prevented from sagging by a suitable trussing.

C represents pedestals, carrying in theirA lower portions the axle-boxes a, and arranged directly opposite each other upon the frames aforesaid. These pedestals are two or more in number-that 1s, there may be two or more pairs thereof. Each pair affords bearings tov a short axle, D, upon which is secured inthe usual manner a flanged car-wheel, E. The side beams of the truck-sections are connected together by means of strong tim-1 bers b b', the one bolted to the under side and the other to top thereof, and extending trans-` versely across the frames at the middle of their length. The upper middle braces, b', are each provided with a smooth metallic bearingplate, c, upon their upper faces, the object of whichwill be hereinafter explained, the said plate being let into the said brace preferably.

Upon the side bars d d of the trucksections are erected strong rectangular metallic loops x, extending above the upper braces, b', and straddling the same, through which loops the bolster F is passed. This bolster has at the center of its length a metallic bearing, e, upon which the car-body rests, and through which passes the king-bolt that secures the car to the truck. The bolster is in no wise secured to thetrucksections, and has upon its under side metallic plates e', that receive the plates e of braces b'. n

At each end of the compound truck thus formed is a metallic lock-bar, J, rigidly secured at oneend to one of the truck-sections, and extending through a guide-loop, m, 'on the other. The free end of the lock-bar is provided with a stop, n, that prevents the same from becoming disengaged from the loop m. These lockbars have spaced perforations o cut through them, with which, under 4circumstances hereinafter set forth, a spring-catch, j, upon the trucksection having the guides m, is designed to engage when the said perforations come in. line with a perforation, o', in the said guides. The catch is raised and the lock-bar released by means of a rock-shaft, k, carrying a cam,

p, under said catch, that is rotated by a crankarm or hand-wheel.

T represents the rails of the track, gradu-l 1 ally lessenin g in their distance apart from wide gage to narrowuntil they merge into the rails of the narrow-gage track. Inside of the rails of the converging track is a guard-rail, V, sut ciently yspaced to admit the flange of the wheels. At the point y, where the converging trackmerges into the broad-gage, the rails are somewhat farther apart than onthe broad-gage itself, by which means the sections of the truck are caused to separate sufficiently to provide Vfor endwise play ofthe axles and secure the engagement ofthecatch and lock-bar. Fora similar reason the rails in front of the narrow-gage track are somewhat nearer together than on the narrow-gage itself, as shown at y.

In passing from the broad to the narrow gage track, the flanges of the wheels bear against the eonvergin g rails, and as the cars move the sections of the truck approach each other by Y a sliding movement on the bolster, owing tcb the constraint caused by the convergence of said rails. In passing from the 'narrow to the broad gage track, the divergence of the guardrails against which the anges of the wheels bear causes the truck-sections to separate by a sliding movement until the catch engages the lock-bar.

I do not propose to confine myself to the precise construction of the truck-sections, lockbars, and catches hereinbefore described, as there are many other modes of construction which might be adopted without going outside of my invention.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, with the bolster F and independent truck-sections sliding thereon to or from each other, of the lock-bars J, having the stop n, engaging loops m on one of said sections, whereby said stop n prevents the lockbar from being disengaged from the loops, substantially as specified.

2. The combination, with the bolster F, of independent truck-sections d, having .guideloops x, sliding on said bolster, the perforated lock-bars J, secured to one of the sections and engaging the loops m on the other, in connection with the rock-shaft Je, having' the cam p, operating the springcatch j, all constructed and arranged to operate substantially as shown and described.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

JAMES TIMMS. fitnesscsz WM. H. Grmsn, F. J. MAsL

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