US251352A - Richabd m - Google Patents

Description

(No Model.)

R. M. OOSBY.

GAR TRUCK.

N. Prrcns Pima mwmpw. washington. n

UNrraD STATES PATENT Ormea.,

RICHARD M. COSBY, OF INDIANAPOLIS, INDIANA.

CAR-TRUCK.

SPECIFICATION forming part of Letters Patent No. 251,352, dated December 27, 1881.

Application filed August 6, 1881.

To all whom it may concern:

Be it known that I, RICHARDM. UosBY, ofthe city of Indianapolis, county of Marion, and State of Indiana, have invented certain new and useful Improvements in Car-Trucks, of which the folowing is a specification.

rlhe object of my said invention is to produce a car-truck, principally for passengercoaches, which shall carry its load evenlyand steadily without reference to the roughness ot the track. This is accomplished by constructing the truck so that any jar occasioned by the passage of any wheel thereof over any irregularity in the track shall be received by equalizing trusses and distributed throughout the whole structure. The construction shown notonly accomplishes this purpose, but secures several other important advantages, which will hereinafter be fully described.

Referring to the accompanying drawings, which are made a part hereof, and on which similar letters ot reference indicate similar parts, Figure l is a perspective view ot a cartruck embodying my invention; Fig. 2, a top or plan view thereof; Fig. 3, a longitudinal vertical section, looking upwardly from the dotted line c e,- Fig. 4, a transverse vertical section,looking to the left from the dotted line yw fw; Fig. 5, a detail drawing, looking` downwardly from the dotted line y y; Fig. 6, a verticalsection, looking` upwardly from the dotted line xm,- and Fig. 7, a vertical section on the line .e z, Fig. 2.

In said drawings, the portions marked A represent the car-wheels; B, the axles; C, the boxes; D, the side trusses; E, inner or equalizing trusses; F, springs interposed between the trusses D and E; G, diagonal trusses, the ends of which rest ou the trusses E; H, bars running across the tops ofthe bars composing the trusses G,and restingthereon; I, stay rods or bars running from thepartsGHto the axle; J, frames secured upon the trusses Gand supported thereby; K, stirrups suspended thereto L, the cross-bars of said stirrups; M, the bottom bar of the bolster; N, springs on said bar; O, a second bar, similar to the bar M, resting on said springs; and P, the top portion of the bolster upon which the car rests.

The wheels A, axles B, and boxes C are (No model.)

`passing down through or beside said boxes.

Four frames-two, DD, at the ends, and two, D2 D2, near the center-bind these trusses together, and also serve as guides t'or the inner trusses, E, and the end ones, in addition, also serve as guides for the diagonal trusses G. The frames D D each contain a flanged pin, d', located above the ends ofthe trusses G G, by which said trusses and the trusses E E are prevented from having too great an upward movement. The anges thereon are of different lengths, so that by turning one or another down against the trusses they are held more or less tightly in place, as may be required.

rIhe inner or equalizing trusses E are supported in the center by the springs F F, which, as well as the trusses themselves, pass between the guides D2 D2, and are held in position thereby. These trusses, being free at the ends to move vertically, except so far as they are' Vgoverned by the flanged pinsd, and being supported wholly by the springs in the center, are relieved largely of the jar of the wheels, as they pass over'rough orirregular places in the track, which would otherwise be communicated to them.

The diagonal irussesGGare secured at their ends to the ends ot' the trusses E E, and there` fore move therewith. They, like said trusses E E, enter the frames D D at their ends, and are secured together in the center by the bolts or rivets g. They are secured to the bars H and stays I by the long bolts G, which also secure the top and bottom members of said trusses in unvarying relation.

The bars H are simply straight bars conneetin g the trusses G together and serving as supports for the frame J, which rests thereon.

The staybars or rods I are made in the form of braces, as shown, and are connected to the trusses G at one end and at the other to the axles. Ordinarily they serve no special purpose; butin case of the breaking oft of a wheel from the axle they would serve to hold up the end of the axle from the ground and prevent it from catching among the cross-ties, or on other obstructions, and thus throwing the whole truck from the rails and causing a smash-up.7

The frames J rest upon the bars H. They preferably are of the form shown, coming to a point at or near their ends, so that the stirrups K can be pivoted thereto at that point and swing free for the rest of their length.

The stirrups K are pivoted to the frames J by pivots j, on which they swing at right angles with the direction in which the truck moves.

The cross-bars L are supported by pairs of the stirrups K, and support the bottom bar, M, of the bolster, to which they, as well as bars n, are secured by bolts m, as shown in Fig. 6.

The bars M and Oare usuallyheavy wooden timbers, and have springsNinterposed between them, which are secured thereto, as shown.

rI he top portion, P, ofthe bolster is in the form of a he'avy flat spring, the looped ends of which rest upon and are secured to the bar O, and also preferably pass around the top memv ber ofthe side truss, D. The car is secured to this portion in the usual manner.

As will be readily seen by this detailed explanation, each part of the frame of this cartruck aids in the general design of having as little of the jarring motion of the wheels as they pass over irregularities in the track im; parted to the car as is possible. The springs F and N provide for the vertical movement required, the stirrups K for the lateral, while, when necessary, a slight longitudinal movement is permitted by the manner in which the inner trusses are connected to the outer ones, which movement, however, is prevented from becoming too great by thel stops e e, which may 'in themselves be somewhat elastic.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, in a car-truck, with the outer truss, D, of an inner equalizing truss, E, supported centrally by springs, and the ends of which move vertically independently of said outer truss, substantially as shown and specified.

2. The combination, with the outer trusses of a car-truck, which rest upon bearings upon the ends of the axles outside the wheels, of

trusses G Gr, each of which extends directly from one corner of the truclrto the corner diagonally opposite, and the ends of which are bent around to rest upon the outer trusses, all substantially as shown and specified.

3. The combination, with theinternal trusses of a car-truck, of the substantially elliptical frames J J, having the hangers K K, attached thereto by pivots j, which, by means of the bars L L, support the bolster and permit it to have a swinging movement, all substantially as shown and described, and for the purposes specified. Y

4. The combination of the bars M and O, springs N, and top portion, P, forming a bolster, all arranged and operating substantially as shown' and set forth.

5. The combination, in a car-truck, of the trusses D, which rest on the boxes, the trusses E, which rest on springs upon said truss D, and trusses Gr, which rest upon said trusses E and run diagonally across the truck from one t0 the other of said trusses E, substantially as shown and specified.

6. The combination, with the trusses D, of frames D D2, which secure the top and bottom members of said trusses together, and also serve to retain other trusses inside these trusses in position, substantially as shown and specified.

7. The combination, with the inside trusses, E, of the flanged pins d', which adjustably secure said trusses against too great an upward movement, substantially as shown and described.

8. The combination of the side trusses, D E, one within the other, the diagonal trusses G, the hanger-frames J, resting thereon, the han gers K, pivoted thereto, and the bolster resting upon bars connecting pairs of said hangers, all substantially as set forth.

9. The combination, with the trusses of a car-truck, of the stay-rods I, by which, in case of an accident, the axle would be prevented from falling to the ground, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RICHARD M. 'GOSBY.

Witnesses:

GEORGE H. BENNETT, E. O. FRINK,

IOO

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