US431938A - Half to thomas gorman - Google Patents

Half to thomas gorman Download PDF

Info

Publication number
US431938A
US431938A US431938DA US431938A US 431938 A US431938 A US 431938A US 431938D A US431938D A US 431938DA US 431938 A US431938 A US 431938A
Authority
US
United States
Prior art keywords
air
reservoir
brake
vessel
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US431938A publication Critical patent/US431938A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
    • B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
    • B60T8/34—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition
    • B60T8/44—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems
    • B60T8/441—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration having a fluid pressure regulator responsive to a speed condition co-operating with a power-assist booster means associated with a master cylinder for controlling the release and reapplication of brake pressure through an interaction with the power assist device, i.e. open systems using hydraulic boosters

Definitions

  • DENNIS DUNN OF MAHANOY CITY, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO THOMAS GORMAN, OF SAME PLACE.
  • My invention relates to improvements in air-brakes for railroadand other cars, the obect being to provide simple and effective means for compressing the air and supplying it to the brake mechanism.
  • Figure 1 represents a side elevation of my improved compressing and braking device applied to a car.
  • Fig. 2 is a plan view of the same.
  • Fig. 3 is a detail sectional view of the air-reservoir and liquid-receptacle.
  • Fig. 4 is a similar view of-the air-compressor.
  • Fig. 5 is a detail view of the three-way cock.
  • the reference-numeral 1 designates the platform of a car, and 2 the wheels.
  • a cog-wheel 4 Secured to the axle 3 of one pair of wheels is a cog-wheel 4, which meshes with a similar wheel 5, mounted in brackets 6, depending from the bottom of the car.
  • each end of the cylinder 8 are secured the entrance and exit pipes 14 and 15, the pipe 14: being open to the air, and pipe 15 connecting by pipe 16 with the reservoir 17.
  • the pipe 14 being open to the air
  • pipe 15 connecting by pipe 16 with the reservoir 17.
  • the air compressed in the cylinder will then escape through valve 18 and be conducted to reservoir 17 by'means of pipe 16.
  • a safetyvalve should be connected with pipe 16, so that when the pressure shall have reached a certain point it will open and allow the air to escape, as will be understood by those skilled in the art.
  • This air-reservoir is secured to the car in any convenient manner and communicates by means of pipe 19 with a liquid vessel or receptacle 20, containing glycerine or other suitable liquid, which is forced by the compressed air to the piston-cylinder which operates the brake, as will be hereinafter described.
  • a liquid vessel or receptacle 20 containing glycerine or other suitable liquid, which is forced by the compressed air to the piston-cylinder which operates the brake, as will be hereinafter described.
  • a three-way cook 21 so constructed and arranged that when turned one way communication will be established between the reservoir 17 and vessel 20, and when turned the other way to shut off communication there between it will communicate'with the atmosphere.
  • the numeral 22 designates a pipe leading from near the bottom of vessel to the brake-cylinder 23, having piston 24.
  • the piston-rod 25of piston 24 is connected with rectangular-frame 26, which in turn is connected with rod 27, connected with the pivoted brake-levers 28, carrying the brakeshoes 29.
  • Secured to this frame are springs 30, the tendency of which is to throw the brake-shoe out of contact with the wheels.
  • the cook 21 is connected with a lever or other device by which it may be operated to set the brakes.
  • the operation is as follows: WVhen the cars are started, the Wheels actuate the piston 9 by means of the cog-wheels and connections. This will cause the air to be compressed and stored in the reservoir 17 until wanted for use. The safety-valve will prevent too great a pressure being attained. WVhen in normal condition, the three-way cock will close communication between reservoir 17 and vessel 20. WVhen, however, it is desired to apply the brakes, the cook 21 is turned so as to open communication between reservoir 17 and vessel 20 and cut ofi communication with the open air. The compressed air will now rush to vessel 20, and acting upon the liquid contained therein will force said liquid through pipe 22 to the cylinder 23, causing the piston therein to be actuated and the brakes applied through the connections therewith.
  • the three- Way cock is operated to shut off communication between reservoir-'17 and vessel 20 and open communication from vessel 20 with the open air, when the springs 30 will cause the piston to be operated in a reverse direction and the brake to be retracted.
  • a mechanism for operating air-brakes consisting of an air-compressor actuated by the car-axles, a reservoir connected with the air-compressor, a liquid-vessel, a pipe having a three-way cock connecting said reservoir and vessel, a brake-cylinder having piston connected with the brakes, and a pipe connecting the brake-cylinder and liquid-reservoir, substantially as described.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Description

(No Model.) I 2 Sheets-Sheet 1. D. DUNN.
, AIR BRAKE FOR RAILWAY CARS. No. 431,938. Patented July 8, 189(1).
I Wyn 93% d I (No Model.) 2 Sheets-Sheet 2. D. DUNN.
AIR BRAKE FOR RAILWAY CARS.
.No. 431 988. Patented July 8, 1890.
F Y L 5 7 IVITJV' SSES: 1.7V VEJV TOR me mums Wrens m, wnomwrma, WASNINGYON, o. c,
UNITED 1 STATES PATENT OF ICE.
DENNIS DUNN, OF MAHANOY CITY, PENNSYLVANIA, ASSIGNOR OF ONE- HALF TO THOMAS GORMAN, OF SAME PLACE.
Al R-BRAKE FOR RAl LWAY-CARS.
SPECIFICATION forming part of Letters Patent No. 431,938, dated July 8, 1890.
Application filed May 12, 1890. Serial No. 351,493- (No model.)
To aZZ whom it may concern.-
Be it known that I, DENNIs DUNN, a citizen of the United States, and a resident of Mahanoy City, in the county of Schuylkill and State of Pennsylvania, have invented certain new and useful Improvements in Air-Brakes for Railway-Cars; and I do hereby declare that the following is a full, clear, and exact description of the invent-ion, which will enable othersskilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.
My invention relates to improvements in air-brakes for railroadand other cars, the obect being to provide simple and effective means for compressing the air and supplying it to the brake mechanism.
The invention consists in the novel construction and combination of parts hereinafter fully described, and definitely pointed out in the claims.
In the accompanying drawings, Figure 1 represents a side elevation of my improved compressing and braking device applied to a car. Fig. 2 is a plan view of the same. Fig. 3 is a detail sectional view of the air-reservoir and liquid-receptacle. Fig. 4 is a similar view of-the air-compressor. Fig. 5 is a detail view of the three-way cock.
In the said drawings, the reference-numeral 1 designates the platform of a car, and 2 the wheels.
Secured to the axle 3 of one pair of wheels is a cog-wheel 4, which meshes with a similar wheel 5, mounted in brackets 6, depending from the bottom of the car.
7 designates the air-compressor bolted or otherwise connected with the car-bottom. It consists of a cylinder 8, within which works a piston 9, connected by means of pistoirrod 10 and connecting-rod 12 and crank-pin 13 with the cog-wheel 5.
At each end of the cylinder 8 are secured the entrance and exit pipes 14 and 15, the pipe 14: being open to the air, and pipe 15 connecting by pipe 16 with the reservoir 17. In each of these pipes 14 and 15 are located check-valves 18 18 18 18, which are so arranged that while one is open the other is closed-that is to say, when the piston is traveling in the cylinder in the direction indicated by the arrow valves 18 and 18 will be closed and valves 18 and 18 will be open. The air compressed in the cylinder will then escape through valve 18 and be conducted to reservoir 17 by'means of pipe 16. A safetyvalve should be connected with pipe 16, so that when the pressure shall have reached a certain point it will open and allow the air to escape, as will be understood by those skilled in the art. This air-reservoir is secured to the car in any convenient manner and communicates by means of pipe 19 with a liquid vessel or receptacle 20, containing glycerine or other suitable liquid, which is forced by the compressed air to the piston-cylinder which operates the brake, as will be hereinafter described. Connected with pipe 19 is a three-way cook 21, so constructed and arranged that when turned one way communication will be established between the reservoir 17 and vessel 20, and when turned the other way to shut off communication there between it will communicate'with the atmosphere.
The numeral 22 designates a pipe leading from near the bottom of vessel to the brake-cylinder 23, having piston 24. The piston-rod 25of piston 24 is connected with rectangular-frame 26, which in turn is connected with rod 27, connected with the pivoted brake-levers 28, carrying the brakeshoes 29. Secured to this frame are springs 30, the tendency of which is to throw the brake-shoe out of contact with the wheels. The cook 21 is connected with a lever or other device by which it may be operated to set the brakes.
The operation is as follows: WVhen the cars are started, the Wheels actuate the piston 9 by means of the cog-wheels and connections. This will cause the air to be compressed and stored in the reservoir 17 until wanted for use. The safety-valve will prevent too great a pressure being attained. WVhen in normal condition, the three-way cock will close communication between reservoir 17 and vessel 20. WVhen, however, it is desired to apply the brakes, the cook 21 is turned so as to open communication between reservoir 17 and vessel 20 and cut ofi communication with the open air. The compressed air will now rush to vessel 20, and acting upon the liquid contained therein will force said liquid through pipe 22 to the cylinder 23, causing the piston therein to be actuated and the brakes applied through the connections therewith. When it is desired to release the brakes, the three- Way cock is operated to shut off communication between reservoir-'17 and vessel 20 and open communication from vessel 20 with the open air, when the springs 30 will cause the piston to be operated in a reverse direction and the brake to be retracted.
Having thus described my invention, what I claim is- 1. A mechanism for operating air-brakes, consisting of an air-compressor actuated by the car-axles, a reservoir connected with the air-compressor, a liquid-vessel, a pipe having a three-way cock connecting said reservoir and vessel, a brake-cylinder having piston connected with the brakes, and a pipe connecting the brake-cylinder and liquid-reservoir, substantially as described.
2. Ina mechanism for operating air-brakes, the combination of an air-compressor, a reservoir, a liquid-vessel, a pipe connecting said reservoir and liquid-vessel provided with a three-way cook, a pipe leading from the bottom of said vessel to the brake-cylinder, a piston in the brake-cylinder, a pistod-rod connected with a frame for setting the brakes, and springs for retracting the brakes, substantially as described.
In testimony that I claim the foregoing as my own I have hereunto afiixed my signature in presence of two witnesses.
DENNIS DUNN. \Vitnesses:
M. J. OAUGHNEY, THos. F. GORMAN.
US431938D Half to thomas gorman Expired - Lifetime US431938A (en)

Publications (1)

Publication Number Publication Date
US431938A true US431938A (en) 1890-07-08

Family

ID=2500843

Family Applications (1)

Application Number Title Priority Date Filing Date
US431938D Expired - Lifetime US431938A (en) Half to thomas gorman

Country Status (1)

Country Link
US (1) US431938A (en)

Similar Documents

Publication Publication Date Title
US2248435A (en) Compressed air actuated hydraulic brake
US431938A (en) Half to thomas gorman
US479024A (en) Gar-coupling brake
US335049A (en) Andeew j
US204440A (en) Improvement in railway air-brakes
US474958A (en) Worth
US364646A (en) Car-brake
US434253A (en) Peter j
US607069A (en) Car-brake
US569258A (en) Air-brake
US543904A (en) Car-brake
US269747A (en) Air-brake for railroad-cars
US742722A (en) Automatic air-brake.
US165337A (en) Improvement in automatic air-brakes
US696114A (en) Car-brake.
US353673A (en) Air-brake for cars
US713960A (en) Air-brake.
US439302A (en) Means for regulating the elasticity of car-springs and means for storing air
US364706A (en) Oar brake
US578602A (en) Vacuum-brake
US615140A (en) Hydraulic brake
US764142A (en) Automatic air-brake.
US473789A (en) shortt
US545663A (en) teott
US548474A (en) Automatic car-brake