US761484A - Car-haul. - Google Patents

Description

PATENTED MAY 31, 1904.

. P. v. HETZEL.

OAR HAUL. APPLIOAT ION FILED MAR. 'l". 1903.

2 SHEETS-$331 1.

NO MODBL'.

110.761, 184. I PATENTED'MAY 31,1904.

' F. v. HBTZEL. GAR HAUL;

.' APPLICATION FILED MAR. 7. 1903.

' NO I 2 SHEETS-SHEET 2.

IZUEIZiOp.

UNITED STATES Patented May 31, 1904.

PATENT OFFICE.

FREDERIO V. HETZEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO- THE LINK BELT ENGINEERING COMPANY, OF PHILADELPHIA, SYLVANIA, A CORPORATION OF PENNSYLVANIA.

PENN- OAR-HAUL.

SPECIFICATION forming part of Letters PatentNo. 761,484, dated May 31, 1904.

Application filed March 7, 1903.

To all whom it may concern:

Be it known that I, FREDERIG V. HETZEL, a, citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Oar-Hauls, of which the following is a specification. Y

My invention relates to certain improvements in car-hauls used for transferring a car from the pit-opening of a mine or other lower level to an elevated point, where the car is unloaded. v

The main object of my invention isto decrease the strain upon the drive-chain of the car-haul without lessening the output of the I plant. Thi's object I attain by increasing the speed of the chain on the inclined plane.

A further object of my invention is to increase the speed of the main drive-chain and allow the chain to engage the car without undue shock. This object I attainby providing anauxiliary chain which is driven at the ordinary speed, so that it will engage the car and set it in motion and so that the car will be under way when the main chain, which is driven at a higher speed, engages it.

Oar-hauls as ordinarilyconstructed consis of an inclined track, upon which the car wheels travel, and an endless chain having lugs arranged to engage a car. The speed of 0 the-chain is limited, owing to the fact that the chain must engage the car at the base of the inclined plane and carry it up to the discharge-point, and if the chain is travelingat too high a speed the shock will be so great as to not only affect the machinery, but injure the car or cause it to jump the track; but when the car is once on the inclined plane the speed of the chain can be materially increased withoutany bad effect.

In the accompanying drawings, Figure 1 is a side view of the base portion of .a car-haul, illustrating my invention. Fig. 2 is a plan view of Fig. l.- Fig. 3 is a transverse sectional view on the line 3 3, Fig. 1, looking in the direction of the arrow; and Fig. A is a diagram View of a modification.

A A are the rails of the track, mounted on suitable ties at a in the usual manner. The

swarm. 146,705. '(No model.)

Fig. 2, the chain is situated midway between the tracks A A and has lugs or projections b, which engage a portion of the car. The chain I can be of any type desired without departing from the main'feature of my invention.

G is a coal-car of the ordinary type having flanged wheels 9 g, which travel on the rails A A, and depending from the center portion of the car in the present instance are brackets i, carrying a bar a, with which one of the lugs Z) of the main chain B engages. By placing the bar in the position shown the jolting or other motion of the car will not disengage the carfrom the lug b, as it is at the point of least motion. 4

D is an auxiliary chain passing around a sprocket-wheel C on the shaft E and around a sprocket-wheel F, some distance from the shaft E. This wheel is secured to a shaft F,mounted an idler O on the shaft E, mounted in bearings e e. The bearings for the shafts E, C and F are preferably adjustable-- In the drawings I have shown the sprocketwheel O one-half the diameter of the sprocketwheel C, so that the chainD travels at one-half the speed of the chain .13. The idler O is placed in the position shown to elevate the chain D and keep its upper run in-the proper line with the rails A, so that the lug d on the chain will engage the bumper it on the end of the car Gr.

It will be understood that the relative diameters of the sprocket-wheels C and C will vary according to the speed of the shaft and the desired speed of the chains.

Itwill be noticed in the drawings that in the present instance there is only one lug (Z on the chain D, and this is so arranged in respect to the lugs b on the main drive-chain B that the lugs b will engage the car before the lug (Z disengages it, so that from the moment the car starts it is under the complete control of the chains.

If desired, the chain D may have more than one lug (Z, in which case the length of the chain will be increased or the lugs on the main carrying-chain would be arranged closer together.

While I have shown in Fig. 1 only one auxiliary chain, which is driven at half the speed of the main drive-chain, there may be two or more auxiliary chains, as shown in the diagram Fig. 4:, which illustrates two auxiliary chains D and D, the chain D being driven from a wheel F on the shaft F.

In place of the chains shown ropes may be .used having projections or lugs secured to them in any suitable manner; but I prefer to use the drive-chain shown.

The supporting structure may be constructed in any manner, and I have not entered into the details of this, as any suitable supporting structure can be used.

By the above construction it will be seen that the speed of the main chain B can be increased to double the ordinary speed of the chain by placing the car in motion by means of the auxiliary chain D before the main chain B engages it. Thus the same number of cars,

or even more, can be delivered at the top of the car-haul with a less number of cars on the inclined plane, and consequently the strain on the chain is decreased, and in some instances a lighter chain can be used than heretofore.

While I have shown the auxiliary chain D driven from the same shaft as the main chain B, it will be understood that separate driving mechanism may be used, if desired; but I prefer the construction shown, as it simplifies the drive.

I claim as my invention 1. The combination in acar-haul, ofa track, a main drive-chain and an auxiliary drivechain, each having lugs, sprocket-wheels for the said chains, a shaft on which two of said sprocket wheels are mounted and through which motion is imparted from one chain to the other, substantially as described.

2. The combination in a car-haul, of the track, a main drive-chain, a shaft, a sprocketwheel mounted on the shaft around which the main chain passes, a lug on the main chain arranged to engage a car, a sprocket-wheel on said shaft less in diameter than the main sprocket-wheel, an auxiliarydrive-chain passing around the said small sprocket-wheel and having a lug arranged to engage the car so that the car will be first set in motion by the auxiliary chain and will be transferred by it to the main chain, substantially as described.

3. The combination of a track upon which travels the car to be propelled, a shaft, two sprocket-wheels on the shaft one sprocketwheel being less in diameter than the other, a main drive-chain passing around the larger sprocket-wheel and having a series of lugs which engage the car, with an auxiliary chain passing around the small sprocket-wheel and having a lug engaging the car, the main chain extending upward between the inclined tracks and the auxiliary chain extending between the horizontal tracks, the lugs of the chains being so arranged that the car will be setin motion by the auxiliary chain and transferred to the main chain which is driven at a greater speed, substantially as described.

4. The combination in a car-haul, of the horizontal and inclined tracks, a driving-shaft having two sprocket-wheels thereon, one of greater diameter than the other, a main drivechain mounted between the inclined tracks passing around the large sprocket-wheel and having one or more lugs thereon, an auxiliary chain passing around the small sprocketwheel and extending around the horizontal portion of the track, a car mounted on the track, a central bar on the car and a bumper on the car, the lug on the auxiliary chain ongaging the bumper and the lug on the main chain engaging the bar before the lug on the auxiliary chain leaves the bumper of the car, substantially as described.

5. The combination in a car-haul, of a track, a main drive-chain and an auxiliary drivechain, sprocket-wheels for the chains, a shaft, two of the sprocket-wheels mounted on said shaft, the sprocket-wheel for the auxiliary chain being less in diameter than the wheel for the main chain, and an idler for guiding the auxiliary chain, substantially as described.

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

FREDERIC V. HETZEL.

Vitnesses: I

VVILL. A. BARR, Jos. H. KLEIN.

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