US280999A - bandelier - Google Patents

Description

(No Mode 1.) 3 Sheets--Sheet 1. L. E. BANDELIER.

TRACTION ENGINE.

No. 280,999. Patented July 10, 1883..

WITNESSES:

V ATTORNEYS.

(No Model.) 3 Sheets-Sheet 2 L. E. BANDELIER.

TRACTION ENGINE. No. 280,999. Patented J111y'1'0, 1883.

WITNESSES: INVENTOR:

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(No Model.) 3 Sheets-Sheet 3. L. E. BANDELIER.

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'TRACTION -ENGlNE.

SPECIFICATION forming part of Letters Patent No. 250,999, dated July 10, 1883. Application filed f'lprill 14, 1883. (No model.)

To alZ whom it mag "concern,

, Be it known that I, Lou s Enirnr Baron- LIER, of New Haven, in the county of Allen and State of I1'1diana,haveinventeda new and 5 useful Improvement in Traction-Engines; and

4 is aside-view of the rear compensating-gear.

. The object of my invention is to provide an improved Construction of traction-engine which will secure a more uniform distribution of theweight and strain of theengine upon the supporting-wheels; and itconsists inthe improved construction and arrangement of parts whereby all four of the running-wheels are made to act as drivers, as will be fullyde- 2 5 scribed hereinafter.

In thedrawings, A represents the boiler of a traction-engine.

B B are the two hind wheels, which are loosely connected to short axles C G, whose inner ends are" made of segmental shape, and are bolted to the boiler.

To each of the two -=rear wheels is fastened a ring, a 0:, having inwardly-projecting gearteeth. One of thesering-gears engages with a pinion, b, on a shaft, D,'-and the other (an gages with a pinion, b., The pinion b and shaft D are each rigidly connected to separate disks E E, which have bevel-teeth on their adj acent faces, and engage with the small bevelpinions c c c 0, set in the intermediate wheel,

F, on axes at right angles to the shaft D. This gear-wheel F receives motion from the crankshaft of the engine through a pinion and counter-shaft, (not shown,) and the function of the wheel F is to transmit said motion to either or both of the rear drive-wheels, forming a compensatinggear which allows independent motion of the two hind wheels in turning curves, &c. This compensadnggear is already well known, and I do not claim it or deem it necessary to further describe it. In accordance with my invention, however, I make the intermediate wheel, F, in the form of a hollow wheel with removable side F, which houses the disk 11, that is fastened to shaft D, and on the side F of the hollow gear-wheel F is formeda circular series of bevel-teeth, (I. These teeth (I are made to engage with a bevel-wheel, G, on a shaft, H, which runs in a nearly horizontal longitudinal position beneath-the boiler. .At

the forward end of this shaft H is keyed a bevel-pinion, e, which engages with La hori zontal bevel-wheel, I, which rests beneath the front end of the boiler. This bevcl-wheelis coir nected to a lower bevel-wheel, J, by a gimbals jointed connection, K, which allows a rocking motion' between the boiler and its front support, and this lower bevel-wheel, J, is carried upon the front axle-frame, L. This frame-has attached to it the front axle, which is made in 7 two independent sections, M M, one of which, M, is attached rigidly to one of the front wheels, YV, and the'v'o'ther of whiclnlW, is rigidly attached tothe other of the front wheels, N.

Upon the inner adjacent ends of the two sec- 7 5 tions M M of the front axle are firmly fastened, so as to be rigid therewith, disks N N, which have bevel-teeth on their inner faces, and between these revolves loosely a third disk, '0, bearing several bevel-pinions, ff, which mesh So alike with the bevel-teeth of both the disks N N, and constitute with them a compensatinggear of asimilar character to the one before described.

At the outer periphery of the intermediate 8 5 wheel or disk, 0, are formed a series of bevelteeth, that mesh with and derive motion from the horizon tal bevel-wheel J above.

For making a firm connection beneath the front end of the boiler without allowing any weight to come on the gimbal-joint, a plate,

1?, is attached to the same, and has a cylindrical portion extending up into the smoke-box in front of the boiler. In this fits and is held a sleeve, Q, which is bolted or pinned to said cylindrical portion, and is held to the lower I hearing or king-bolt, T, by a swiveling linkrod, R, forming a sort of ball-andsocket joint, which prevents the front end of the boiler from rising up and getting off the axle. The

king-bolt T extends through the axle-frame, and is perforated to receive one of the sections of the frontaxle.

From this description it will be seen that I J, I distribute said strain also to the frontwheels through their compensating-gears, still permitting each wheel of each pair to be entirely independent of the other, so as to facilitate turning.

For combined strength and lightness, trac tion-engine wheels are usually made with radial steel rods for spokes, and when a rotarystrain is imparted to the wheel a ring-gear is usually placed sidewise against said wheel, and this ring-gear distributes the strain sufficiently around the wheel to relieve the spokes of any twisting strain. When, however, the motion is imparted to the wheels through the rotary or torsional strain of the axle, as is the case with my front wheels, the spokes. are very apt to be twisted out of their sockets. To prevent this I arrange between'the two series of radial spokes in each front wheel braces S, which are arranged at an angle to the spokes, so as to resist'any lateral deflection of the inner ends of the latter from the torsional strain of the axles. I

For turning the front axle about its Vertical center. in steering, any suitable gearing may be 'employed- I am aware that it is not new to impart thev driving-power of the engine to all four wheels through the instrumentality of two compensating-gears; but I do not know that these gears have been I connected by an inflexible shaft, H-,"having its forward end arranged to travel in a concentric path about the front pivotal support.

Having thus described my invention, what I ,fl m e isfi 1. The combination of the boiler, the front 'wheels having, independent axles,with compensating-gear between, the horizontal gearwheels I and J, with gimbal-jointed connection, the shaft H, with gear-wheels G and e,

and the driving mechanism for the rear wheels, substantially as shown and described.

2. A'compensating-gear having its intermediate wheel, F, provided with two sets of gearteeth, one set of which receive the power which moves it, and an external series of teeth, d, on its side for transmitting motion to another set of driving-wheels, substantially as described. 3. The combination, with a boiler and an axle supporting the front end'of thesame, of a plate, P, having an elongated chamberextending up into the smoke-box, a sleeve, Q,

fitted therein, and a tie rod or link for holding the boiler down upon the axle, as shown and described.

4. The combination, with the driving mech anism of a traction-engine and an axle through which the driving strain is transmitted, of a traction-wheel fixed rigidly on said axle and provided with radial spokes, and oblique or angular thrust-braces S, arranged between the two rows of spokes of the wheel, substantially as and for the purpose described.

LOUIS EMMET BANDELIER.

Witnesses:

SOLON O. KEMON, CHAS. A. PETTIT.

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