US127332A - Improvement in air-brakes for railway cars - Google Patents

Improvement in air-brakes for railway cars Download PDF

Info

Publication number
US127332A
US127332A US127332DA US127332A US 127332 A US127332 A US 127332A US 127332D A US127332D A US 127332DA US 127332 A US127332 A US 127332A
Authority
US
United States
Prior art keywords
air
piston
brakes
valve
lever
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 US127332A publication Critical patent/US127332A/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

  • a piston in the low-:er part of this cylinder is operated by a cam on one ofl'the axles, and the piston, being forced up,presses the air above it, and the compressed air forces up a piston in the upper half of the cylinder, this piston having a rod connected with the brake-lever, so that the upward movement of the piston operates and applies the brakes.
  • the cylinder has an opening in one side covered by a hinged valve or stopper, which, when opened, allows the air forced up by the lower piston to escape from the cylinder, while, when closed, said air is compressed by the piston, and, having no escape, forces up the upper piston and operates the brake-lever, and applies the brakes.
  • each cartruck is provided With a rod or shaft, hung ⁇ beneath it and running from end to end of the car, this rod being hung in suitable bearings, in which it can be turned.
  • Each bar has jointed to it for each air-pump one end of a link,
  • continuous pump-valve operatin g rod or shaft may be operated by the engineer. It is in this construction and method of effecting the application and release of the brakes that the invention primarily consists.
  • the drawing represents a car embodying my invention.
  • A shows a bottom view of the car.
  • ⁇ B is a f brake-bar i is connected, by a rod, a, with one end of a lever, o, which lever o is connected, by a rod, 1J, with one end of a lever, q, the opposite end of said lever g being connected, by a rod, r, with the brake-bar 7c, while its center is connected, by a rod, s, with the brake-bar l.
  • the air-cylinder has two chambers, separated by a partition, m1, in which partition is an opening, m2, covered by a valve, w3, opening upward.
  • a piston In the lower chamber is a piston, a2, from the bottom of which extends a rod, b2, which connects the piston with a lever, o2, fulcrumed at d2, the free end of the lever extending over one of the axles, and being operated by a cam or eccentric, e2, on'said axle.
  • This lower piston has orifices f2 covered by iiapvalves g2, said valves opening upward and admitting air to the lower chamber of the cylinder when the piston descends, and closing when the piston ascends, the pistonthen compressing the air aboveit into the upper chamber of the cylinder and elevating the piston y, return of the air when the piston descends being prevented by the closing of the valve w3.
  • Opeliing from the upper chamber is an air-passage, h2, the outer side o f which is covered and closed, at times, by a hinged valve, i2.
  • This valve is connected, by a link, 7a2, with an arm, Z2, on a horizontal rod or shaft, m2, under the platform, said shaft being mounted and turning in suitable bearings at the opposite end of the car.
  • this shaft is turned in one direction the link 7a2 andarm Z2 are brought into line, thereby throwing the valve i2 against the' cylinder z and closing the air-passage h2.
  • the action of the piston f2 will then force air into the chamber o2, and the compression of the air in the chamber v2 will force up the piston and operate and apply the brakes.
  • Each car has, or may have, one or more hand-levers, n2, each connected, by a link, o2, with an arm, p2, extending from the shaft, so that the brakeman, by operating said lever, may turn the sh aft, and thereby apply or release the brakes.
  • each car being provided with such a shaft
  • the shafts of adjacent cars are connected so as to-effect connection through the train and to the engine, as follows:
  • Each end of each shaft is provided with a square or other suitably shapedsocket, q2.
  • a connecter-bar, #texten ds Into each socket a connecter-bar, #texten ds, this bar being shapedto fit into the socket, and so that, in turningit, the shaft is turned with and by it.
  • two bars, r2 are connected bya universal joint, as seen at s2, so that the cars can move around curves and over switch-rails, and endure lateral strains without disturbing the shafts by reason of their connections.
  • connection extending to the engine it will be obvious that the engineer, by turning the first shaft, will turn all the others, and can thus apply all the brakes of the train.
  • each may be provided with a suitable screen, t2.
  • the arrangement or system of brake-levers may, of course, differ from that shown, my invention relating only to the means of operating the brake-levers.
  • valveoperatin g shaft m2 for controlling the position of the air-valve i2, substantially as shown and described.
  • valve-operatin g shafts (one for each car,) connected by the link-bars sliding into sockets q2, each pair of bars being joined bythe universaljoint s2, substantially as shown and described;

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Elements And Transmission Devices (AREA)

Description

c'. FOGELBERG.
Patented 4May 28,1872.
..252 Wiz ar.
"UNITED STATES PATENT OFFICE.
CARL FOGELBERG, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN AIR-BRAKES FOR RAILWAY CARS.
Specification forming part of Letters Patent No. 127,332, dated May 28, 1872.
- each car with the piston-rod of an air-pump placed beneath the car. A piston in the low-:er part of this cylinder is operated by a cam on one ofl'the axles, and the piston, being forced up,presses the air above it, and the compressed air forces up a piston in the upper half of the cylinder, this piston having a rod connected with the brake-lever, so that the upward movement of the piston operates and applies the brakes. The cylinder has an opening in one side covered by a hinged valve or stopper, which, when opened, allows the air forced up by the lower piston to escape from the cylinder, while, when closed, said air is compressed by the piston, and, having no escape, forces up the upper piston and operates the brake-lever, and applies the brakes. To bring the apparatus within the control of the engineer each cartruck is provided With a rod or shaft, hung` beneath it and running from end to end of the car, this rod being hung in suitable bearings, in which it can be turned. Each bar has jointed to it for each air-pump one end of a link,
whose other end is jointed to the valve that controls the air-outlet passage of the cylinder.
AW'hen the shaft or rod is turned in one direction the link is so operated as to close and hold closed the valve, while, when turned in the other direction, the valve is drawn away from l the air-outlet, or is free to swing out therefrom.V
continuous pump-valve operatin g rod or shaft may be operated by the engineer. It is in this construction and method of effecting the application and release of the brakes that the invention primarily consists.
The drawing represents a car embodying my invention.
A shows a bottom view of the car.` B is a f brake-bar i is connected, by a rod, a, with one end of a lever, o, which lever o is connected, by a rod, 1J, with one end of a lever, q, the opposite end of said lever g being connected, by a rod, r, with the brake-bar 7c, while its center is connected, by a rod, s, with the brake-bar l. rlhe outer end of the lever o is connected, by a rod, t, with the vertical arm u of a lever fulcrumed at c, said lever having a horizontal arm, w, through'which extends the vertical stem of a piston, y, in the air-cylinder z, the rise of this piston operating the lever u w, and through it and the rods t, p, s, and o" actuating the systemof levers o g, and applying the brakes. The air-cylinder has two chambers, separated by a partition, m1, in which partition is an opening, m2, covered by a valve, w3, opening upward. In the lower chamber is a piston, a2, from the bottom of which extends a rod, b2, which connects the piston with a lever, o2, fulcrumed at d2, the free end of the lever extending over one of the axles, and being operated by a cam or eccentric, e2, on'said axle. This lower piston has orifices f2 covered by iiapvalves g2, said valves opening upward and admitting air to the lower chamber of the cylinder when the piston descends, and closing when the piston ascends, the pistonthen compressing the air aboveit into the upper chamber of the cylinder and elevating the piston y, return of the air when the piston descends being prevented by the closing of the valve w3. Opeliing from the upper chamber is an air-passage, h2, the outer side o f which is covered and closed, at times, by a hinged valve, i2. This valve is connected, by a link, 7a2, with an arm, Z2, on a horizontal rod or shaft, m2, under the platform, said shaft being mounted and turning in suitable bearings at the opposite end of the car. When this shaft is turned in one direction the link 7a2 andarm Z2 are brought into line, thereby throwing the valve i2 against the' cylinder z and closing the air-passage h2. The action of the piston f2 will then force air into the chamber o2, and the compression of the air in the chamber v2 will force up the piston and operate and apply the brakes. Turned in the other direction, the Valve is drawn away from the air-opening, and the movement of the piston f2 will then simply press the air through the air-passage h2, and the piston y will then remain stationary and the brakes will remain out of contact with the wheel-treads. Each car has, or may have, one or more hand-levers, n2, each connected, by a link, o2, with an arm, p2, extending from the shaft, so that the brakeman, by operating said lever, may turn the sh aft, and thereby apply or release the brakes. Each car being provided with such a shaft, the shafts of adjacent cars are connected so as to-effect connection through the train and to the engine, as follows: Each end of each shaft is provided with a square or other suitably shapedsocket, q2. Into each socket a connecter-bar, #texten ds, this bar being shapedto fit into the socket, and so that, in turningit, the shaft is turned with and by it. For each two adjacent cars two bars, r2, are connected bya universal joint, as seen at s2, so that the cars can move around curves and over switch-rails, and endure lateral strains without disturbing the shafts by reason of their connections.
The connection extending to the engine, it will be obvious that the engineer, by turning the first shaft, will turn all the others, and can thus apply all the brakes of the train.
To prevent entrance of gravel or other foreign matters into the air-cylinders each may be provided with a suitable screen, t2.
The arrangement or system of brake-levers may, of course, differ from that shown, my invention relating only to the means of operating the brake-levers.
i I claim- 1. In combination with the air-cylinder chambers and their brake-operating pistons, the air-outlet h2 and flap-valve 2, operated by an arm on the rockshaft, substantially as shown and described.
2. In combination with the brake-actuating mechanism, the valveoperatin g shaft m2 for controlling the position of the air-valve i2, substantially as shown and described.
3. A series of valve-operatin g shafts, (one for each car,) connected by the link-bars sliding into sockets q2, each pair of bars being joined bythe universaljoint s2, substantially as shown and described;
4. In combination with each air-cylinder, the screen t2, substantially as shown and described.
CARL FOGELBERG. WTitnesses: 1
FRANCIS GOULD, M. W. FROTHINGHAM.
US127332D Improvement in air-brakes for railway cars Expired - Lifetime US127332A (en)

Publications (1)

Publication Number Publication Date
US127332A true US127332A (en) 1872-05-28

Family

ID=2196752

Family Applications (1)

Application Number Title Priority Date Filing Date
US127332D Expired - Lifetime US127332A (en) Improvement in air-brakes for railway cars

Country Status (1)

Country Link
US (1) US127332A (en)

Similar Documents

Publication Publication Date Title
US127332A (en) Improvement in air-brakes for railway cars
US976000A (en) Means for automatically varying, proportionately to the load, the pneumatic application of friction-brakes.
US381571A (en) Car-brake
US1055567A (en) Operating mechanism for car-windows.
US404418A (en) Device for operating car-brakes
US569258A (en) Air-brake
US595326A (en) Automatic control device for elevators
US674808A (en) Automatic governor for fluid-compressors.
US450610A (en) bowers
US474958A (en) Worth
US351786A (en) albert p
US746838A (en) Mechanism for coupling or uncoupling cars or locomotives.
US823966A (en) Brake-actuating device.
US413205A (en) Air-brake
US516122A (en) Wolfgang schmid
US275831A (en) Brake for locomotives and tenders
US1571506A (en) Quick-action triple valve
US385224A (en) Edwabd andrews
US836105A (en) Load-brake apparatus.
US871277A (en) Pressure-reducing valve.
US207126A (en) Improvement in air-brakes for cars
US999246A (en) Means for operating extension-steps and trap-doors on railway-cars.
US1720266A (en) Variable-load apparatus
US636858A (en) Air-brake.
US930379A (en) Air-brake apparatus.