US179300A - Improvement in compressed-air holders for the engines of street-cars - Google Patents

Improvement in compressed-air holders for the engines of street-cars Download PDF

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Publication number
US179300A
US179300A US179300DA US179300A US 179300 A US179300 A US 179300A US 179300D A US179300D A US 179300DA US 179300 A US179300 A US 179300A
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cylinder
engines
cars
compressed
heads
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Expired - Lifetime
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)

Definitions

  • My invention is for lessening the Weight of the air-holders, and for sustaining the heads independent of the cylinder, so that there' will not be any strain at the joints between the heads and cylinder in consequence of pressure upon the heads.
  • Figure 1 is a longitudinal section of the air-holder complete
  • Fig. 2 is a cross-section at' the line or or.
  • the cylinder a is made of paper, rolled upon a core, and the respective thicknesses secured together by adhesive material, such as glue. Care should he vtaken to roll the paper so that the greatest strength will be circumterentially of-the cylinder.
  • the core upon which the cylinder at is made should be in sections like a hat-block, so that it can be removed with facility after the cylinder has been completed and thoroughly dry.
  • the outside and inside surfaces of this cylinder are preferaby coated with water-proof material, such as paint or varnish, and the ends are dressed oft true and of a shape to suit the metallic or paper heads.
  • the heads f are connected together by the tie-bolts g, and these are more or less numerous, according to the size of the cylinder and the pressure to be sustained. Itis preferable to screw these tie-rods into hollow sockets t in one head, so that there will not be any hole through said head, and the other ends of the tie-rods that pass through the other head f are provided with nuts l, which are notof the ordinary character, but are hollow, capshaped, so that air passing through between the screw and nut cannot escape, and there is only one flat face to each nut, that is rendered perfectly tight by any suitable washer, or by red lead or similar material.
  • These tie-bolts serve to hold the heads together under the pressure to which they are subjected without any strain coming upon the cylinder from the pressure upon the heads.
  • the central'tie-rod is preferably made with an ordinary nut, 0, that comes within the cavity of the coupling or flange r of the connection 8 for the air-pipe, so that there will not be leakage at this nut, and around this tiebolt and nut are the openings t, that allow the atmosphere, under pressure or otherwise, to pass freely into or out of the holder.
  • the heads of the cylinder may be of metal or of paper pressed into a suitable mold, the layers of paper being cemented together, and the direction of the fiber in one sheet crossing those of the adjacent sheets.
  • the holder for compressed air or gas constructed of a cylinder of paper with heads connected together by tiebolts with capshaped nuts, substantially as set .forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)

Description

'J. GRI SCO'M. COMP-RESSED'AIR HOLDERS FOR THE ENGINES ow-s'r-REET CARS;
N mnmoo.
N.PETER8. PHOTD-LITHOGRAFNER, WASHINGTON. D C,
4 'NITED TATES PATENT- OFFICE.
JOHN GRISOOM, OF NEW YORK, N. Y.
Specification. forming part of Letters Patent No. 179,300, dated J une 27, 1876 application filed December 6, 1875.
To all whom it may concern: Y
Be it known that I, JoHN GRIsGOM, of the city and State of New York, have invented an Improvement in Holders for Compressed Airor Gases for Engines or for other purposes, of which'the following is a specification Great difficulty has heretofore been-experienced in obtaining a holder adapted to streetrailway cars for containing compressed air to operate the propelling-engine. Metal tanks are heavy and liable to leak, besides which the pressure upon the flat or nearly flat heads is liable to cause a separation of the head from the metal of the cylinder.
My invention is for lessening the Weight of the air-holders, and for sustaining the heads independent of the cylinder, so that there' will not be any strain at the joints between the heads and cylinder in consequence of pressure upon the heads.
In the drawing, Figure 1 is a longitudinal section of the air-holder complete, and Fig. 2 is a cross-section at' the line or or.
The cylinder a is made of paper, rolled upon a core, and the respective thicknesses secured together by adhesive material, such as glue. Care should he vtaken to roll the paper so that the greatest strength will be circumterentially of-the cylinder.
The core upon which the cylinder at is made should be in sections like a hat-block, so that it can be removed with facility after the cylinder has been completed and thoroughly dry. The outside and inside surfaces of this cylinder are preferaby coated with water-proof material, such as paint or varnish, and the ends are dressed oft true and of a shape to suit the metallic or paper heads. There is a metal band, 0, slightly tapering, driven into each end of the cylinder, to sustain the paper against the pressure of packing material introduced between the flange d of the head f and the said cylinder a, and suitable washers are by preference introduced between the ends of the cylinder and the surfaces of the heads.
The heads f are connected together by the tie-bolts g, and these are more or less numerous, according to the size of the cylinder and the pressure to be sustained. Itis preferable to screw these tie-rods into hollow sockets t in one head, so that there will not be any hole through said head, and the other ends of the tie-rods that pass through the other head f are provided with nuts l, which are notof the ordinary character, but are hollow, capshaped, so that air passing through between the screw and nut cannot escape, and there is only one flat face to each nut, that is rendered perfectly tight by any suitable washer, or by red lead or similar material. These tie-bolts serve to hold the heads together under the pressure to which they are subjected without any strain coming upon the cylinder from the pressure upon the heads.
The central'tie-rod is preferably made with an ordinary nut, 0, that comes within the cavity of the coupling or flange r of the connection 8 for the air-pipe, so that there will not be leakage at this nut, and around this tiebolt and nut are the openings t, that allow the atmosphere, under pressure or otherwise, to pass freely into or out of the holder.
The heads of the cylinder may be of metal or of paper pressed into a suitable mold, the layers of paper being cemented together, and the direction of the fiber in one sheet crossing those of the adjacent sheets.
1 claim as my invention 1. The holder for compressed air or gas, constructed of a cylinder of paper with heads connected together by tiebolts with capshaped nuts, substantially as set .forth.
2. The combination, with the paper cylinder and heads, constructed as specified, of the tiebolt passing from one head to the other, and the coupling-flange r, inclosing the nut of the tie-bolt, as set forth.
Signed by me this 3d day of December, A. D. 1875.
JOHN GRISOOM.
Witnesses: I
GEO. T. PINOKNEY, GHAs. H. SMITH.
US179300D Improvement in compressed-air holders for the engines of street-cars Expired - Lifetime US179300A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850201A (en) * 1955-11-24 1958-09-02 Asea Ab Means for removing and sealing the bottom of a vessel adapted for high pressure
US3044655A (en) * 1957-07-10 1962-07-17 Loral Electronics Corp Submarine casing adapted to be opened speedily

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850201A (en) * 1955-11-24 1958-09-02 Asea Ab Means for removing and sealing the bottom of a vessel adapted for high pressure
US3044655A (en) * 1957-07-10 1962-07-17 Loral Electronics Corp Submarine casing adapted to be opened speedily

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