US212180A - Improvement in relief-pistons for pumps - Google Patents

Improvement in relief-pistons for pumps Download PDF

Info

Publication number
US212180A
US212180A US212180DA US212180A US 212180 A US212180 A US 212180A US 212180D A US212180D A US 212180DA US 212180 A US212180 A US 212180A
Authority
US
United States
Prior art keywords
piston
pumps
relief
pipe
cylinder
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 US212180A publication Critical patent/US212180A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M1/00—Carburettors with means for facilitating engine's starting or its idling below operational temperatures

Definitions

  • PHOTO-LITMOGRAFHER WASHINGTON n n'rn'r FFIG MICHAEL B. BRANNEN, OF SHENANDOAH, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND JOHN L. WILLIAMS, OF SAME PLACE.
  • the object of my invention is to relieve the pressure between the piston-head and valves by the elastic action of an air-cushion, which will enable the piston to commence its stroke more easily than when the whole load is upon it in starting.
  • the invention consists in the use of a plunger or piston fitted in a chamber at each end, which chambers are connected one with the column and the other with the suction-pipe.
  • the piston is pressed in one direction by elastic action of air contained in one ehanr her and moved in the other direction by the pressure of water caused by the pump.
  • Figure l is a sectional elevation of my relief apparatus.
  • Fig. 2 is a cross-section on line a: to.
  • a b are cylinders, placed in line, and forming chambers at the opposite ends of the loose piston or plunger 0, which works through air-tight packings in the heads of the cylinders a. b.
  • Each cylinder at the end opposite its head is formed with a flange for connection of pipes, as hereinafter described, and also with an opening smaller in diameter than piston c, as seen at d c, and in operation the piston closes upon these openings.
  • openings (1 0 form seats for the end of the piston, and may be tapered, if desired, and the ends of the piston provided with rubber disks, so that they will close air-tight.
  • a pipe, g which I call the air-pipe, that has connection with the column of water.
  • the opening a in cylinder b communicates with the suction-pipe of the pump, so that there is free passage for water to cylinder 11.
  • the suctionpipe is represented in dotted lines at i, and the column-pipe at k.
  • piston c In the position of piston c, as shown in the drawings, it is closed against opening 6 in cy1- inder b, and the next stroke of the pump will act to force the water that has been drawn by the suction-pipe into the column-pipe.
  • the pump first starts the pressure upon the water will be communicated through the opening 6 to piston c, which will be caused to rise against the air in cylinder a, thus relieving the pump of part of its load for a moment until the pump has obtained a momentum.
  • valves of the pump operate in the usual manner, my relief device being independent in its action.
  • the cylinder at is provided with a cock, 1, to permit the escape of air from cylinder (0 when it is desired to repair the packing of piston c.

Description

Patented Feb. 11,1879.
m m NX W N N I ATTORNEYS.
M. B. BRANNEN. Relief-Pistons for Pumps.
METERS. PHOTO-LITMOGRAFHER, WASHINGTON n n'rn'r FFIG MICHAEL B. BRANNEN, OF SHENANDOAH, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND JOHN L. WILLIAMS, OF SAME PLACE.
IMPROVEMENT IN RELlEF=PISTONS FOR PUMPS.
Specification forming part of Letters Patent No. 212,180, dated February 11, 1879; application filed December 27, 1878.
To all whom it may concern:
Be it known that I, MICHAEL B. BRANNEN, of Shenandoah, in the county of Schuylkill and State of Pennsylvania, have invented a new and Improved Relief-Piston for Pumps, of which the following is a specification:
In pumping water, especially when two pumps are used and discharging to the same column, there is always jar and strain at the end and commencement of the stroke, owing to the shutting of the valves, so that when the water has to be lifted a long distance high speed of the pumps is not safe.
The object of my invention is to relieve the pressure between the piston-head and valves by the elastic action of an air-cushion, which will enable the piston to commence its stroke more easily than when the whole load is upon it in starting.
The invention consists in the use of a plunger or piston fitted in a chamber at each end, which chambers are connected one with the column and the other with the suction-pipe. The piston is pressed in one direction by elastic action of air contained in one ehanr her and moved in the other direction by the pressure of water caused by the pump.
In the accompanying drawings, Figure l is a sectional elevation of my relief apparatus. Fig. 2 is a cross-section on line a: to.
Similar letters of reference indicate corresponding parts.
a b are cylinders, placed in line, and forming chambers at the opposite ends of the loose piston or plunger 0, which works through air-tight packings in the heads of the cylinders a. b. Each cylinder at the end opposite its head is formed with a flange for connection of pipes, as hereinafter described, and also with an opening smaller in diameter than piston c, as seen at d c, and in operation the piston closes upon these openings. The
edges of openings (1 0 form seats for the end of the piston, and may be tapered, if desired, and the ends of the piston provided with rubber disks, so that they will close air-tight. In the side of each cylinder to b is an opening having a manhole plate, as seen at f, through which opening access may be had to the seats.
The opening (1 in cylinder to communicates with a pipe, g, which I call the air-pipe, that has connection with the column of water. In the pipe g is a cock, h, for regulating the pressure of air in pipe g and cylinder to. The opening a in cylinder b communicates with the suction-pipe of the pump, so that there is free passage for water to cylinder 11. The suctionpipe is represented in dotted lines at i, and the column-pipe at k.
In the position of piston c, as shown in the drawings, it is closed against opening 6 in cy1- inder b, and the next stroke of the pump will act to force the water that has been drawn by the suction-pipe into the column-pipe. When the pump first starts the pressure upon the water will be communicated through the opening 6 to piston c, which will be caused to rise against the air in cylinder a, thus relieving the pump of part of its load for a moment until the pump has obtained a momentum.
The elastic air-cushion in cylinder a, and pipe aids the start of the pump on the return stroke, and returns piston c to the position shown in the drawings.
It is to be understood that the valves of the pump operate in the usual manner, my relief device being independent in its action. The cylinder at is provided with a cock, 1, to permit the escape of air from cylinder (0 when it is desired to repair the packing of piston c.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In combination with water-pumps, a relief piston or plunger, fitted in cylinders that are connected one with the suction-pipe and the other with the water-column, substantially as described and shown, and for the purposes set forth.
2. The combination and arrangement of the cylinders a b and piston c with the suctionpipe and water-column of a pump, substan tially as described and shown, and for the p u rposes specified.
MIOHAEL B. BRANNEN.
Witnesses:
JOHN J. Rnnsn, JAMEs WooLEY.
US212180D Improvement in relief-pistons for pumps Expired - Lifetime US212180A (en)

Publications (1)

Publication Number Publication Date
US212180A true US212180A (en) 1879-02-11

Family

ID=2281586

Family Applications (1)

Application Number Title Priority Date Filing Date
US212180D Expired - Lifetime US212180A (en) Improvement in relief-pistons for pumps

Country Status (1)

Country Link
US (1) US212180A (en)

Similar Documents

Publication Publication Date Title
US212180A (en) Improvement in relief-pistons for pumps
US415750A (en) Apparatus for actuating hydrostatic presses
US473949A (en) Mechanism for raising water
US204747A (en) Improvement in feed-water regulators
US816964A (en) Adjustable pressure-pump.
US930843A (en) Apparatus for controlling the flow of fluids.
US271238A (en) Oiling-pump for steam-engines
US774778A (en) Compressed-air locomotive.
US636643A (en) Air-compressor.
US1016767A (en) Hydrostatic pump.
US615812A (en) Automatic relief-valve for pumps
US530193A (en) Pump attachment
US451148A (en) Pressure-equalizer
US968948A (en) Feed-water regulator.
US895084A (en) Air-compressor or vacuum-pump.
US292177A (en) pug-sley
US876849A (en) Pump operated by compressed air.
US742471A (en) Pump.
US51965A (en) Improvement in pumps
US474711A (en) Relief-valve
US53067A (en) Improved steam-injected water-motor
US265629A (en) Water-elevator
US604579A (en) tonge
US343765A (en) Patrick f
US987968A (en) Method of siphoning fluid.