US970231A - Safety device for railway-cars. - Google Patents

Description

W. S. JACKSON.

SAFETY DEVICE FOR RAILWAY CARS. APPLICATION FILED JUNE 16, 1910.

' 970,231 Patented Sept. 13, 1910.

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SAFETY DEVICE FOR RAILWAY-CARS,

Specification of Letters Patent.

Patented Sept. 13, 1910.

Application filed June 1(?, 1910. Serial No. 567,172.

' and a resident of Waterville, in the county of Kennebec, State of Maine, have invented certain new and useful Improvements in Safety Devices for Railway-Cars, of which the following is a specification.

My invention relates to a safety device for railway cars and particularly to certain improvements in the device shown in my Letters Patent No. 926,334, dated June 29, 1909. i 3

In my patented device, a shaft was journaled beneath the car and longitudinally thereof and a relief valve on the train pi )e was opened by the rotation of this shaft. The shaft was rotated and the train pipe openedin case of the derailment of the truck by an arm which projected out from the truck and was arranged to strike a bar which ran longitudinally of the car below the truck frame extending practically the whole length of the truck. This bar was in such a )osition that it was liable to be accidentaly struck, thus stopping the train when not necessary.

According to my improvement I ell'ect the rotation of the shaft by a transverse horizontal member located above the truck and in a position where itwill not he accidentally struck.

Other features of improvementare covered in this application as fully set forth in the following specification.

I illustrate my invention by means of the accompanying drawing in which Figure l a side elevation of a car equipped with my improved safety device, and Fig. 2 is an end elevation of the same.

In the drawing, A represents the car body, B the wheels, I; the journal -boxes, the shaft, fl. the train pipe and It the branch on which is the relief valve i These )arts are all common to my prior patent and require no further description.

\For the purpose of rotating, the shaft. (1

when the truck drops down by reason of derailment or otherwise, I provide a transverse horizontal member which is depressed by an upright secured to the truck.

As here shown, I make use of a horizontal member or lever d pivoted to a. hanger beneath the car and extending transvm-scly of the length of the car directly above each wheel. Cooperating with the lever d is an upright shown as an inverted U-shaped strap f secured to the journal box and embrac ng thelever (Z.

Considering the left hand side of Fig. 2, the lever d is connected at its end with an arm 0 on the shaft C by means of a link 0 so that when the lever d is depressed, the shaft (,1 will be rotated.

On the other side of the car the lever d is connected with an arm a on the shaft (1 by means of a link 0 but the connection is made on the inside of the hanger" which suports the shaft so that the depression of the ever d will tend to turn the shaft in the same direction as the shaft 0 on the other side of the car is turned. Since the motion of each shaft is transferred to the valve F, this arrangement is necessary. The motion of each shaft- C is transferred to the handle 7 of the relief valve by telescoping rods each of which operates independently of the opposite one.

On the left hand side (Fig. 2) the arm E depeluling l'ronfthe shaft (1 is pivoted on the end of a rod (1 having, a loop r ol'l'set at its inner end and engaging the rod 0. The rod 0' connects with the valve handle f and has aloop c embracing the rod 0. A stop 6 on the rod abuts normally against end of the rod 0. Thus when the rod e is forced inwardly it acts on the rod and throws the valve open but when the valve is opened from the opposite side, it simply elongates the telescoping rods r. c-' without disturbing the adjustment of the safety devices on that side of the car. A similar arrmigemen't on the right. hand side of the car prevents the safety device being disturbed when the opposite side is operated.

A rod w. has a loop a at its end embracinga rod it connected with the valve handle, this latter rod lnuing a loop a" embracing the rod n. A stop on the rodn allows the connection to telescope inward while a pull outward has the effect of turning the valve handle.

l t sometimes happens that the brakes and brake beams fall down and so cause damage to the car and l ,have provided safety means connected with my attachment for stopping, the train when this occurs. For this pur-- pose, I make use .of a horizontal cross ba as i which extends across the car from one side to the other. This bar is suspended by links 2' at its ends from arms 2' on the shafts G. The bar 11 is depressed when the brake beam drops by an upright i secured tofthe brake beams j and engaging the cross bar Thus when the brake beam falls, the bar 7. is depressed, the shafts C revolved and the relief valve opened.

The shaft 0 is prevented from accidentally turning by a spring m fitting a recess in a cam m on the shaft O,.(shown only On left side of Fig. 2) but such a connection is liable to become displaced and in order to hold the shaft more positively, I secure the transverse member 03 to the body of the car by an easily broken tie rod 05 which breaks under an excessive strain in case of accident to the car. The liability of having the apparatus accidentally sprung is thus reduced to a minimum.

It will be seen that the lever d is directly over the shaft 0 and in case the journal breaks allowing the journal box, to drop down, the truck will be held up by thestrap f and lever d. When the truck is derailed and drops down on either side, the relief.

valve is opened as in the case of my original device, and also when the brake beam falls. Thebarz' is also located directly below the draw-bar and if this falls down it strikes theba-r '2". and operates the device stopping thetrain. v

The device as I have here'shown it {can be cheaply a plied to. a car, it is out, of be way of the ot er parts and is effective in preventing a large class of accidents. vI

It is evident tha'tthe upright may act directly 01 the arm a rather than onthe lever 05 but I prefer to make use of a transverse member independent of the shaft.

I claim r 1. In a safety device for railway cars the combination of a shaft jonrnaled beneath .the car body and longitudinally thereof, a

relief valve on the train pipc, mechanis1n for opening said relief valve operated by the rotation of said shaft, an upright secured to, the truck, a horizontal transverse member extending transversely to the length of the ear and adapted to engage said upright and connecting mechanism for rotat ing the shaft by the depression of said horizontal transverse member. j

2. In a safety device for railway cars, the combination of a shaft journalcd beneath the car body and longitudinally thereof, a

reliefvalve on the train pipe, mechanism for opening said relief valve operated liythe rotation 0 said shaft, an upright secured to the" truck, a horlzontal transverse member pivoted to the car and extending transversely to the length of the car and adapted to enga c said upright and connecting mechanism or rotating the shaft by the depression of said horizontal transverse member.

3 In a safety device for railway cars the combination of a shaft journaled beneath the car body and longitudinally thereof, a relief valve on the train pipe, mechanism for opening said relief valve operated by the rotation of said shaft, an upright secured to the truck, a horizontal transverse member pivoted to the car and extending transversely to the length of the car and adapted to engage said upright, an arm on said shaf and a linkconnecting said arm with sa'd horizontal transverse member.

4. In a safety device for railway cars, th

combination of a shaft journaled beneath the car body and longitudinally thereof, a rel1ef valve on the train pipe, vmechanism for opening said relief valve operated by the rotation'of said shaft, an upright secured to the truck, a horizontal "transverse member pivoted to the car and extending transversely to the length of the car and adapted to en-,

gage said upright, mechanism for rotating the shaft operated by the depression of said horizontal transverse member and aneasily broken tie rod for resisting the rotation of said shaft. 1

5. In a safety device for railway cars, the

combination of a shaft journal'ed beneath the car body and longitudinally thereof, a

relief valve on the'train" pipe, mechanism for opening said relief valve operated by the.

rotation of said, shaft, an upright secured to the truck, a horizontal transverse member pivoted to the car and --extending trans- .versely to the length of the car and adapted to engage said uprightymechanism for rotating the shaft operated by the depression of said horizontal transverse member andan easily broken tie rod connecting said-horizontal transverse member with the car body. 6. In a safety. device for railway cars, the combination of a shaft journaled beneath the car body and longitudinally thereof, a relief valve on the trainpipe, mechanism for opening the relief valve operated by the rotation of said shaft, a cross bar extending horizontally across thecar adjacent to the truck, an upright connected with the brake and adapted'to engage said cross bar, and means for rotating said shaft connected-with and operated by the depression of said cross 7. In a safety device for railway cars, the combination of a shaft journaled beneath the car body and longitudinally thereof, a

relief valve on the train pipe, mechanism for opening the relief valve 0 erated by'the rotation of -saidshaft, a cross ar extending horizontal-1y across the car adjacent to the truck, an upright connected with the brake and adapted to engage said cross bar, an arm on saidshaft and a link connecting the end of said crossbar with said arm whereby the depression of said bar rotatesi 'said shaft.

8. In a safet' device for railwa cars the combination 0 a shaft journale beneath the car body and longitudinally thereof, a said shaft Connected with and operated by relief valve on the train pipe, mechanism the depression of said cross bar. 10 for opening the relief valve operated by the In Witness whereof I have hereunto setrotation of said shaft, a cross bar extending my hand this 8th day of June, 1910.

horizontally across the ear adjacent to the WALTER S. JACKSON. truck and beneath the draw bar, an uplight Witnesses; connected with the brake and adapted to en- H. D. BATES,

gage said cross bar, and means for rotating S. W. BATES.

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