US805105A - Bogie-car. - Google Patents

Description

PATENTED NOV. 21, 1905.

I. A. TIMMIS.

BOGIB GAR.

APPLICATION FILED MAYZB, 1905.

2 SHEETS-SHEET 1.

I I I I I I I I I I I I I I I I I l I I l I I I I I I I I I I I I I I I I l I IIIILILI IIII III.

PATENTED NOV. 21, 1905.

I. A. TIMMIS.

BOGIE CAR.

APPLICATION rum) MAYZZ, 1905.

2 SHEETS-S33E12.

UNITED STATES PATENT OFFICE.

BOGlE-CAR.

Specification of Letters Patent.

Batented Nov, '21, 1905.

Application filed May 22,1905. Serial No. 261,576.

To all whom, it may concern.-

Be it known that I, ILLIUs AUGUSTUS TIM- MIS, a subject of the King of Great Britain, residing at London, in the county of Middlesex, England, have invented certain new and useful Improvements in Bogie-Gars, of which the following is a specification, reference being had therein to the accompanying drawings.

The objects of my invention are to improve the running of railway-vehicles by causing the bogietrucks to run more steadily without hunting and preventing or minimizing the swaying of the car-body. With these objects in view it is necessary to deal with existing conditions as far as possible.

This invention does not relate to bogie-cars in'wh'ich the car-body rests on a transverse bolster in the bogie, but solely to cars in which the car-body is carried directly by the bogieframe through the medium of arms, rods or links, and springs. With my improvements I am, where advisable, able to do away with the center pin fixed to the car-underframe, around which the bogie turns, by usinganovel system of bogie-lead and adapting it to the bogie, as explained hereinafter.

My invention consists in the novel construction and combination of parts hereinafter described and claimed.

My invention may be carried into practice under various modifications or variations of the structure and arrangement of parts. According to one plan as adapted to a four-wheel bogie-car I support either end of the car-body by means of one vertical supporting-arm outside of and by preference at the transverse center line on either side of the bogie. The lower end of the rod has a hole or eye in it. On either side of the bogie-frame opposite the supporting-arms I attach swinging rods or links (one to each supporting-arm) by means of swivel or universal joints. The swinging rod goes through the eye at the lower end of the supporting-arm. Below the eye I put two caps or cups or plates on the swinging rod, and at the bottom of it I put a nut or nuts, cotter, or. other suitable device. Then between the caps I put on the swinging rod a spring or springs. The car-body then, by means of the supporting-arms, rests on the top caps, which rest onthe springs. These latter are supported by the bottom caps, nuts, &c., and the whole are carried by the swinging rods, which are fitted to the bogie-frame.

Figure 1 in the accompanying drawings is a vertical transverse section of a bogie with my improvements. Fig. 2 is a plan view. Figs. 3 and 4 are respectively a side view and transverse sectional view of modification.

O is the car-body. R R are the supportin arms; R R, the swinging rods fastened to the bogie-frame F F by the universal joints U U. P P are the top caps; S S, the springs, and P P the bottom plates, and N N the nuts. With this arrangement the car-body swings outward in the direction of the arrow A. The parts R P S R then travel outward also, and R travels in direction A, and nuts N, with parts R, P, S, and P, describe part of the are A. It is evident that any outward travel of the car-body will cause the springsS to be compressed, while the spring and its rod on the opposite side of the bogie-frame will fall nearer the bogie-frame and assume a more vertical position. Under'thcse conditions two results are effected-first, the outward swing of the car is softly minimized, and, second, the outward side of the car in going around a curve is slightly raised and the other side is slightly lowered.

As illustrated in Figs. 3 and 4:, there may be more than one set of arms, rods, and springs fitted on either side of the bogie, or, as shown in Fig. 3, one arm may work with several rods R. If two sets are fitted, the cups (top and bottom) may reach from one to the other.

The springs S may be of any suitable kind, and I prefer to fit them so that there is more than one on each rod R, or if one spring only is used on each rod they are loaded differentially. Instead of a rod R, going through a spring or springs S, a cradle or link may go round them. It is possible to fit one or more sets of arms, rods, springs, &c., on the inside or on both sides of each side frame of the bogie.

By using the above arrangement I may do away with the center pin usually fitted to the car-underframe, which fits in a sliding block fitted in a transverse bolster or frame at the center of the bogie, around which the bogie turns. Fig. 2 of the drawings illustrates one method of effecting this when only one swinging rod R is used on each side. U U are the universal joints fitted, as described above, on either side outside the bogie-frame. R R are the swinging rods; S S, the springs. It

is evident that the lateral movement of the car-body is controlled by these fittings; but it is necessary to fit some means of controlling the bogie under the car with regard to pushing the bogie in whichever direction the car is moving. To effect this object, I use means to give the bogie a lead in whichever direction it is traveling. As shown in the drawings, I fit to the bogie at each end a roller or rubbing piece B B in the center line of the bogie. I

fit to the car under the frame a quadrant for each roller Q, Q, or two for each bogie. These quadrants are brought down low enough to fit up to and against the rollers, and their curve is struck from the center point of the bogie. The rollers and quadrants may be fitted at points other than those shown in Fig. 2; but I prefer to fit them near the ends of the bogie, as I find I get better results. As the bogie swivels under the car as it is going around curves it usually turns around a center pin fitted in castings, and the bogie is propelled by the castings. If these castings and pin (either or both) are retained, the first part of this invention may be used as described with reference to Fig. 1, and the car-body may be supported as described hereinbefore, the bogie-lead being omitted, or, according to another plan, the bogie-lead may be applied and the castings fitted so as to have free movement longitudinally and transversely; but if the bogie-lead is used as described, first, the car-body is carried directly on springs outside the bogie-frame. (one or more sets on either side,) and the springs being preferably put only outside act as supporting-springs and as side check-springs; second, the bogie is propelled at its leading endwhichever end is leadingby the quadrant Q and rubbing piece or roller B; third, as the bogie turns under the car it turns practically around its center, as the quadrants ought to be equidistant and are struck from the center point of the bogie, and the side springs are also in the transverse center line of the bogie and are equidistant from its center. Should more than one set of springs be fitted on either side of the bogie-frame, then their common center should be in the transverse center line of the bogie. The side springs and their swiveling rods or cradles swing and conform to the side motion of the car-body and also to the turning movements of the bogie.

The invention is equally applicable to a sixwheel bogie as it is to a four-wheeler, which is described above.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. The combination with the body of a car and its bogies, of springs attached to the bogies to support the car-body, swinging arms on which the springs are mounted, and supporting-arms carried by the car-body and bearing on said spring, the parts being so constructed and arranged that, as the car swings to either side, the springs will travel with it, substantially as set forth.

2. The combination with a body of a car and its bogies, of springs and spring-supports mounted on the bogie and supporting the body end of the car over each bogie and adapted to control said car-body in its transverse movements, substantially as set forth.

3. The combination with a car-body and its bogies, of intervening side bearing-springs, spring-supports and bearing-bars connecting the car to the bogies and a bogie-lead adapted to control the propulsion of the bogie in either direction, independently on center draft-bearings.

In testimony whereof I afiix my signature in presence of two witnesses.

ILLIUS AUGUSTUS TIMMIS.

Witnesses:

S. J. LOTT, I. H. W. ROUND.

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