US379786A - Railway motoe truck - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

0. W. HUNT.

RAILWAY MOTOR TRUCK.

Patented Mar 20, 1888.

N. PLIERS, Phol lilhogriphon Wuhinginn. D c.

(No Model.) 2 Sheets-Sheet 2.

' C. W. HUNT.

RAILWAY MOTOR TRUCK.

No. 379,786. Patented Mai. 20, 1888.

N. PETERS, Phom-Lllhogrnphqr. )Nnihmglon 0.0

UNITED STATES PATENT OFFICE,

CHARLES \V. HUNT, OF \VEST NEI/V BRIGHTON, ASSIGNOR TO THE C. IV. 'HUNT COMPANY, OF NEYV YORK, N. Y.

RAILWAY-MOTOR TRUCK.

SPECIFICATION forming part of Letters Patent No. 379,786, dated March 20, 1888.

Application filed December 7, 1887. Serial No. 257,260.

To all whom it may concern:

Be it known that I, CHARLES W. HUNT, of Vest New Brighton, in the county of Rich mond and State of New York, have invented an Improvement in Means for Driving Railway-Motors, of which the following is a specification.

Electric motors and engines of various kinds have been used as a source of power in propelling railway-trains, and gearing of various forms has intervened between the power and the wheels. In almost all instances the axles of the drivingwvheels have been in bearings fixed to the frame of the locomotive or motor, and hence difficulty has arisen in running over shortradius curves, especially such as exist in elevated railways and in the yards of coal com anies cuarries 8:0.

My present invention is made for applying the motive power to the four wheels of a swiveling truck, so that said truck can accommodate itself to the track without interfering with the action of the motor.

In the drawings, Figure 1 is a vertical sec tion of the truck and an outline of the car, illustrating rnyimprovement; and Fig. 2 is a sectional plan view of the tubular king-bolt and truck at the line mac, Fig. 1; and Fig. 3 is a section illustrating a modification in the arrangement of the pulleys.

The truck is made with the wheels at a, axles b b, and with any suitable journal-boxes, c, and frames d, that connect them, and there is a cross-bearer, e. In some kinds of motors there will be springs between the journal-boxes and the frames or bearers, or these springs may be omitted, as the parts thus far named may be of any desired character.

A portion of the car-platform is shown atf, and the inclosure for the car may be of whatever form or character is best adapted to the dynamo-electric motor, engine, or other source of power that may be made use of.

The king-bolt is preferably made of short tubes or rings, so that the two parts of the driving-belt h pass through the same. This belt h may be of rubber, leather, or other material, or of a chain with flat or other suitable links, and it is endless and passes from'a drum or pulley, k, that is actuated by suitable power, down through the open or tubular king-bolt,

(No model.)

below the guide-pulleys Z a, and around the pulleys m 0 upon the shafts or axles b b of the truck-wheels a a, so as to propel both pair of truck -wheels; but if it is desired to propel but one pair of truck-wheels the belt may be led as shown in Fig.

In order to make the tubular king-bolt, it is preferable to fasten the flanged cylinder p to the car-platform and the flanged cylinder 1' to the truck-bolster, the cylinder 19 surrounding the cylinder '2', so that the guide-pulleys Z m may be within the cylinder r, and hence the two parts of the belt will be adjacent to the axes of motion as the truck swivels, and the cylinder 1' turns with it when running upon a curve, and in this movement the belt will not be tightened or loosened materially and will maintain the proper tension, because the belts will only be partially twisted from the straight parallel planes of motion where the motor is on a straight track, and the rise and fall of the car-platform on the springs will have but little effect on the belt, because it passes nearly horizontally between the pulleys, and the rise or fall of such pulleys in relation to each other varies but little the distances between the respective points of contact of the belts with the pulleys.

It will be apparent by reference to Fig. 3 that the belt h may extend only around the pulley 0, the second guide-roller, 1, being below the guide-roller a, so that the belts may passv off horizontally, or nearly so, to prevent the belt being materially lengthened or shortened as the car rises and falls with the springs.

Although the tubular king-bolt is more re liable than an ordinary king-bolt, I have shown in Fig. 3 the belts passing nearly together through a mortise in the floor and at one side of the solid king-bolt, which latter may be of any desired construction.

I claim as my invention 1. The combination, with the truek-whecls and axles, of a tubular king-bolt, a belt passing through the same and guide-pulleys, and a pulley on one of the axles and driven by the belt, substantially as set forth.

2. The combination, with the two pairs of truck-wheels and axles, of pulleys on the axles, a tubular king-bolt and guide-pulleys, and a belt passing through the tubular king-bolt, be-

tween the guide-pulleys, and around the pulthe king-bolt, so that the lead of the beltis but leys on the axles, substantially as set forth. slightly varied by the swinging of the truck,

3. The combination, with truck-wheels and substantially as set forth.

axles, of a pulley on one of the axles, guidei Signed by me this 26th day of November, 5 'fpulleys, and a belt passing nearly horizontally 1887.

rom the pulley on the axle to the guide-pulleys, so as not to be materially tightened or CHAS HUNT slackened by the motion of the car on the Witnesses:

springs, and thence the belt passes vertically GEO. T. PINOKNEY, i 1

IO and close to the axis of motion of the truck on WILLIAM G. Mom.

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