US814974A - Air-brake appliance. - Google Patents

Description

:PATBNTED MAR. l, 1,906.

H. c. LUCK. AIR BRAKE APPLIANGB. APP; IOATION FILED JULY 10, 1905.

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` AIR BRAKE: APPLIANCE. APPLICATION FILED JULY 1o, 1905.

PATBNTED MAR; 13, 1906.

z SHEETS-SHEET By M I 'cH-msnen Luck, on TELLURIDE, Corien/ino.

No. S14-,9511.

Specc'ationof Letters Patient.

Pateted March 1'3, 1966.

f Applicationfiea July 10,1905. serial No. 268.926.

Be itknown that I, HAM-'CHRISTIAN LUCK, a citizenof the United States, and a resident of Telluride, in the county lof San Miguel and State of Colorado, have inventedra new and ImprovedAir-Brake Appliance, of which the following is a full, clear, and eX'ac't description.

The invention vrelates to fluid pressure brakes for railroad-trains; :and its object is to provide a new and improved air-brake -appliance arranged to automatically set the brakes in the train in case any one of the cars in the train becomes derailed.

The invention consists of novel features and parts and combinations of the same, which will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is an under side view of a car provided With the improvement. Fig. 2 is a perspective view of the improvement. Fig. 3 is a transverse section of the same, and Fig. 4 is a longitudinal sectional elevation of the operating-fork.

The train-pipe A of a iiuid-pressure brake of the Westinghouse or yother type and secured to the under side of the car-body B of a car is provided with a branch pipe C, the depending end of which is provided with a valve-seat D, of rubber or other suitable material and normally closed by a valve in the form of a lever E, extending longitudinally and fulcrumed at E on a bracket F, secured to the under side of the car-body B.

The valve-lever E rests on a transverse bar Gr, carried by a bracket F secured to the under side of the car-body, and this bar G is located directly below the valve-seat D and is connected by bolts H with a bar II, carrying a nut D', screwing on the terminal of the branch pipe C and serving to hold the valveseat D in place, it bein understood that by the arrangement descri ed the 'valve-lever E is firmly held in engagement with the seat D to close the end of the branch pipe C, and at the same time the valve-lever E can be swung to one side, so as to open the branch pipe C for the escape of air from the train-pipe A with a view -to automatically set the brakes in the usual manner.

The free end of the valve-leverEis provided With a vertical arm E?, extending betweenf the members I and I2 of a fork I, attached to a rod I3, secured to the bolster of th'e cartruck J, so that when thelatter leaves the rails and the. car-truck assumes an angular position relative to the car-body B then the fork I on account of beinga permanent fixture of the truck moves with the latter, and consequently imparts a sidewise swin-gingmotion to the valve-lever E to move 'the latt'er from under the valve seat D to open the branch pipe C for the escape of air to actuate the air-brakemechanism in the usual manner with a view to setting the brakes to bring the train to a stop.

The branch pipe C is provided With a cutout valve K, which is normally open, but is adapted to be closed by an operator after the train has come to a standstill, so that the airbrake mechanism in the train can be manipulated in the usual manner and while the valve-lever E is off the seat D. A

The members I and I2 of the fork I are adjustably secured in the bar I3 by a set-screw I4 to bring the members the desired distance apart with a view to allow the truck to readl ily pass around sharp curves without the corresponding member I or I2 striking the bar E2. Thus the car can readily pass around sharp curves without danger of the air-brakes being automatically applied by the device above described, it being understood that the angle of position of the car-truck relative to the carbody must be more than that assumed by a train going around a sharp curve for the device to automatically set the brakes asabove described.

From the foregoing it will be seen that only in case of derailment of a truck and its consequent angular position relative to the carbodyB causes a quick ap lication ofthe brakes by means of the air-bra e system, so that the train is automatically brought to a standstill within a comparatively short time after the derailment has takeny place, and consequently serious damage to'the train and to the road-bed is entirely prevented.

The device is very simple and durable in construction, is not liable to get easily out of order, and can be readily applied to cars as now equipped with air-brake systems. It is understood that each car is provided with two devices described, one for each truck, so that when either the front or the rear truck leaves the rails the brakes are applied to bring the train to a standstill.

IOO

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. An air-brake appliance for automatically setting the brakes on the derailment of a car in the train, comprising a fork iixed on the car5truck and having its members arranged in a horizontal plane, a branch pipe connected with the train-pipe, and a valve in the form of a lever fulcrumed on the car-body and normally closing the end of said branch pipe, the free end of said lever extending between the members of the said fork whereby the rotation of the truck upon the car-body beyond a predetermined angle may operate the lever to open the valve.

2. An air-brake appliance for automatically setting the brakes on the derailment of a car in the train, comprising a fork iiXed on lopen the valve, and a manuallycontrolled cut-out valve on the said branch-pipe.

In testimony whereof I have signed my name to this specification 1n the presence of two subscribing witnesses.

HANS CHRISTIAN LUCK.

Witnesses FRED BEEBE, G. B. CUsHMAN.

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