US87086A - Improved rah - Google Patents

Description

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T. L. WILSON. RAILWAY CAR TRUCK.

No. 87,086. Patented Feb. 16, 1869.

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T. L. WILSON. RAILWAY GAR TRUCK. No. 87,086. Patented Feb. 16, 1869.

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THOMAS L. WILSON, or DARLINGTON, ENGLAND, ASSIGNOB 'ro GYLESMEREILL AND JOHN W. HOBART, or s'r. ALBAns, vnnmon'r.

' 11mm Patent No. 87,086, dated February 16, 1869'.

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To all whom it may concern:

Be it known that I, THOMAS L. Wmsorgof Darlington, in the countyof Darlington, England, mechanical engineer, have invented a new and improved Auti- Friction Truck for Railway-Oars; and I dohereby declare the following to be a full andexact description thereof, reference being bad to the accompanying drawings, forming a partof this specification, in which-.

I Figure 1 is a side elevation of the truck, (as adapted to freight carss) Figure 2, a front elevation of'the bolsters;

figure 3, a vertical section in linezta: of fig. 2;

Figure4, a vertical longitudinalsection through one of the axle-boxes in line of the axle;

Figure 5, a detached vertical section in line y y of fig. 2; and

Figure 6, a detached transverse section in line I z of fig. 5, illustrating the form of the crown-plates. Simiiar letters indicate-like parts in all of the figures.

In the ordinary air-trucks, uowin use, fi'ictiou-wheels, plates, or rollers, are generally employed in various combinations, for the purpose of allowing theoar to adapt itself, without strain, to the curvatures of the track; but, with the devices heretofore employed, there is a tendency to spread the track when the trucks and car pass the curves, causing considerable wear and tear, both to the permanent way and to the rolling stock.

In my invention, I dispense with allfriction-wheels, plates, or rollers, swinging bolsters, jaws, and levers, and also with the rubber springs now so much in use, and by a novel combination and arrangement of steel springs with the bolsters, and of an improved form of crown-plates, permit a gentle radial, as well as a lat eral movement, to be communicated to the truck and car, so that it may readilyadapt itself to the curvature of the permanent way, and obviate all strain and unnecessary friction between it and the rolling stock, my improved trucks being constructed, also, at-a less cost in the first construction thereof.

The nature of my invention consists in suspending the car-bolsters by means of swinging links,i uitable brackets, upon steel springs secured to the ok-bolsters, so that the car-bolster may have a slight degree of rotary movement upon its axis, and also a slight lateral or longitudinal play.

It consists, likewise, in a novel form of crown-plates, to facilitate the lateral play of the car-bolster, and in devices for confining spiral springs within the axleboxes.

In the accompanying drawings- A isthe-car-bolster, of wood;

B, the'truck-bolster;

O O, the ordinary side-connecting bars;

I) D, the car-wheels;

E E, their axles the malecrown-plate; and

G, the female crown-plate,steadying the bolsters A and 'B'.

These crown-plates differ from the ordinary crownplatos now in use, in that they are made oval or oblong, in section, as illustrated in fig. 6, and are so combiued with the bolsters as to allow a lateral play or motion to the truck in the line of the axles.

H H are metallic brackets, bolted to the sides of the car-bolster A, as illustrated in figs. 1, 2, and 3, of the drawings.

These brackets may be made of cast-iron.

They are provided with hooks h h, figs. 1 and 3, on their inner sides, to engage the links I I, by'means of which the bolster A is suspended upon the springs L L of the truck.

K K are the link-carriers, and consist of bars or plates laid transversely upon the springs L L, and provided with hooked ends, from which the links bearingrthe brackets H and bolster A are suspended.

f be springs L L are of steel, of the ordinary elliptic orm.

M M are spring-guide plates, which may be made of cast-iron.

These are firmly secured to the truck-bolster B, and the springs L L are placed thereon, on either side of the central projecting guides at m.

P P are spiral springs, placedover the brass bearings in the axle-boxes, to overcome all shocks from the unevenness of the track.

These springs are secured between the bearing-plates r, of the axle-journals, and upperseat-plates s, by means of side plates W W, whose edges are turned or foldedover,to engage the foldedor turned edge of flanges projecting from the bearing-plate and seat-plate s, as fully illustrated in fig. 4 of the drawings.

The car, resting upon the bolsters A A, is swung and suspended by means of the brackets H H of the bolster and links I I, hanging from the link-carriers K K, directly, upon the elliptic springs L L, which are placed between the brackets upon the guide-plates M M, secured to the truck-bolsters B.

By thus "suspending the car-bolsters A over the springs, upon swinging links pendent therefrom, a certain freedom of motion, independent of the truck, is permitted to. the car, so that the car will readily adapt itself to the permanent way without strain,iu turning curves, and without that tension and thrust upon the rails which would otherwise produce a spreading thereof. The freedom of motion thus obtained is secured without friction, and without rollers, extra springs, or any complicated devices.

The bolsters A and B are connected and steadied in the usual manner, by crown-plates F and G, made on long in form, to permit a slight lateral, as well as rotary movement of the bolsters, independently of each other.

My invention is equally as well adapted to a sixwheel truck, for passenger-cars, as to a four-wheel truck, as illustrated in the drawings.

Having thus fully described my invention,

I claim therein as new, and desireto secure by Lettars Patent-' 1 forth.

1. The improved spring-link brackets H, links I, 3. The combination of the hooked-edge tie-platesW hooked link-carriers K, spring-guides M, and springs 'th the hearing or journal-plate 'r, and. upper seat-plate L, when combined with each-other, and with the bols, and withinterposed spiral springs P P, withimthe sters A and B of a. railroadcar truck, to operate subaxle-box of a railroad-car truck, substantially in the stantiallyin the manner and for the purpose herein set manner and for the purpose herein set forth.

2. The crown-plates F G, having an extended or THOMAS oblong transverse seetion,-when combined with the Wltnesses: bolsters A and B of a railroad-car truck, substantially GUY O. NOBLE, in the manner and for the purpose herein set forth. OROM. BOWEN.

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