US785208A - Railway safety device. - Google Patents

Description

NQ.785,208. v PATENTEDMAR. 21, 1905.

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RAILWAYJSAFETY DEVICE.

APPLIGATION FILED 00T. 31,1904.

NITED STATES Patented March 21, 1905'.

PATENT OEEICE.

RAILWAY SAFETY DEVICE.

SPECIFICATION forming part of Letters Patent No. 785,208, dated March 21, 1905.

Application filed October 3l, 1904. Serial No. 230,675.

To all whom, t may concern/.1

Be it known that I, FEELING O. FOSTER, a citizen of the United States, residing at Ohicago, in the county of Oook and State of Illinois, have invented a certain new and useful Improvement in Railway Safety Devices, of which the following is a specification.

My invention relates to railway safety devices, and has for its object to provide means to be used in connection with railway-cars and locomotives and the like for the lessening of shocks and the prevention of accidents due to collisions.

The device is illustrated in the accompanying drawings, wherein Figure 1 is a side elevation of the forward end of a locomotive with my device applied thereto; Fig. 2, a horizontal sectional view on line 2 2 of Fig. 1, and Fig. 3 a sectional view on line 3 3 of Fig. 1.

Like letters of reference refer to like parts in all the drawings.

My invention consists of a buffer device or a system of buffer devices which are adapted to be placed on locomotives to act in connection with complementary devices on other trains or which may be placed on the cars of a single train, so as to act in prevention of telescoping and the like mischances.

In the accompanying drawings I have illustrated one form of my invention as applied to the forward endof a locomotive; but I wish y this particularapplication of the device to be takenas illustrative of one of the uses of my invention and the particular forms and constructions here shown to be taken as in a sense diagrammatic and as showing one of many possible forms in which my invention might be embodied. Y

In the accompanying drawings, A represents the boiler of a locomotive; rB, alongitudinal member ofthe supporting-framework; C O, vthe wheels of the forward truck, (shown in dotted lines,) and D thepilot. The safety device here shown may consist of two members, which are adapted to coact in case of collision with two correspondingly-placed like mem bers on the other train. One of these members consists of a cylinder E, which may be l, secured by the cross-piece E integral therewith to the frame B and .further held in position by a connection with some part of the engine-body, as at E2., This cylinder is provided at the forward end with a iiaring neck E3, which I preferably make with the shoulder E4 extending a trifle over the end of the cylinder E. Against this shoulder rests normally the plunger F, and within the cylinder and against the plunger F, I may place a tube G of some elastic material, such as rubber. This, however, is not absolutely essential, as the devices would be capable of operation without it. and vto the tubing G throughl the pipe G', which is provided with the customary checkvalve G2, and may also be provided with a relief-valve G3 of any desired type. Air may be forced into the cylinder and the tube either by means of a pump or the pipe G or may be in permanent connection with the air-brake system of the train, or the cylinder may be otherwise supplied. The other member of the safety device and to be used in connection with the part just described consists of a ram or plunger H, which may be secured to.

the framework B on the other side of the engine in any desired manner, and I have here represented the cross-pieces E E2 as being integral also with the plunger H and extending from one side to the other of the engineframework. I may also provide the forward end of the ram H with a cushioning device H, consisting of a series of leather washers or the like.

In connection with the above described safety or buffer devices or to be used independently I provide another form of buffer device, which is here shown'as applied to the pilot of the engine. The piloti) maybe provided with a flattened end D' and supported Von the framework of theengine by two or more slidingbars J J, attached thereto at J Air is admitted to the cylinder J', and which may have bearings upon the l lbrackets J2 and J3, which are secured to and extend downwardly from the longitudinal frame B. These brackets serve also to support the air-cylinders used to cushion the pilot. There may be any number of these'air-cylinders, and I have here shown them as three in number, two lower ones being designated K K and an upper one L. These air-cylinders are provided each with a plunger, such as L', and may have the inner elastic tube L2, as is shown in the section of the upper cylinder 'm Fig. 3. These cylinders are provided with the inletpipes, as shown at L3, having check-valves and relief-valves, as is the case with the cylinder E. Extending backward from the pilot and secured thereto are three rams or plunger-rods M M, which extend one into each of the cylinders K, K, and L and normally rest against the plunger-s therein.

In the above I have described two forms of my invention adapted to be used in connection with each other or separately; but it will be very clear that the above-described devices might be very greatly varied in construction and arrangement without departing from the broad spirit of my invention. and therefore I do not limit myself to the specic arrangements shown nor the precise forms and constructions set forth, but, on the contrary, wish that these specific constructions be taken as in a sense illustrative of the general nature of my invention.

The use and operation of my invention are as follows: The buffer devices herein shown may be applied, as is here illustrated, to the forward ends of locomotives, or they may be attached to the separate cars of a train of cars, so that when the train is made up each car will be elastically connected with the next ad joining and the train provided at both ends with safety devices. These devices, if adopted in whole or in part, tend very largely to prevent or mitigate accidents.

In the use of the devices Gr and H these two members must of course be arranged invariably on certain sides of the car or locomotive-- as, for example, the cylinder on the right side and the ram on the left side. If, then, two engines come together head on, the ram H on each engine will extend into the flaring end of the cylinder G on the other engine and by the action of the air-cushion, from Which the air may be allowed to gradually escape through the relief-valve, if such valve is used, the impact of the two engines one upon the other will be materially lessened. The rains M, attached to the pilot, operate in the same manner within their cylinders K, K, and L, which in this form of invention are arranged on the same vehicle and in like manner reduce the shock of collision.

In its use between two cars of a train it is clear that either form of device might be utilized, according to the particular exigencies of construction and the like.

I claim- 1. A safety device for railway-vehicles comprising a ram on one of such vehicles, a cylinder on the other vehicle, a flexible air-cushion in the cylinder with the end of which the ram comes in contact, such devices adapted to be brought into operation one with the other to lessen the shock-to suoli vehicles in the case of collision.

2. A safetydevice for railway-vehicles comprising a ram on one of such vehicles, a cylinder on the other vehicle, such cylinder having a iiaring end, a flexible air-cushion in such cylinder'with the end of which the ram comes in contact, such devices being adapted to be brought into operation one with the other to lessen the shock to such vehicles in the case of collision.

3. A safety device for railway-vehicles comprising a ram on one of such vehicles, a cylinder on the other vehicle, an air-cushion of elastic material in the cylinder, and a plunger adapted to act against the air-cushion, such devices adapted to be brought into operation one with the other to lessen the shock to such vehicles in the case of collision.

4. A safetydevice for railway-vehicles comprising a ram and an air-cushioning device arranged one on each vehicle and adapted to coact with the corresponding devices on other vehicles so as to lessen shock to such vehicles in case of collision.

5. A safety device for railway-vehicles comprising a ram and an air-cushioning device arranged on each vehicle and adapted to coact each with the corresponding device on other vehicles, a sliding device at the end of such vehicle, and an air-cushioning device interposed between such sliding device and the body of the vehicle. Y

6. A safety device for railway-engines and the like, comprising a ram device and an aircushioning device arranged on each engine so as to coact with similar correspondingly-arranged devices on other vehicles in combination with a sliding pilot and an air-cushioning device interposed between such pilot and the framework on its engine.

7. A safety device for railway-engines and the like, comprising a ram and an air-cushion adapted to coact with corresponding devices on other vehicles in combination with a sliding pilot, a ram device on such pilot, and an air-cushioning device on the main body of the engine with which the ram device is adapted to coact in case of collision.

FEELING C. FOSTER.`

TOO

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