US144268A - Improvement in balanced slide-valves - Google Patents

Improvement in balanced slide-valves Download PDF

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Publication number
US144268A
US144268A US144268DA US144268A US 144268 A US144268 A US 144268A US 144268D A US144268D A US 144268DA US 144268 A US144268 A US 144268A
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Prior art keywords
improvement
valves
balanced slide
sleeve
cover
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
    • F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
    • F16K3/184—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of cams
    • F16K3/186—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of cams by means of cams of wedge from

Definitions

  • Figure 1 is a vertical section of Fig. 3 taken on the line as m.
  • Fig. 2 is an inside view of the sleeve or cover.
  • Fig. 3 is a top view of the valve, showing it with the sleeve or cover off.
  • B is the face.
  • G is is fitted a sleeve or cover, F, so that it plays freely but stealntight on the cylinder D packed by ring E.
  • the top surface of this sleeve slides in contact with the under side of the cover of the steam-chest.
  • J is the spiral spring beneath the piston G, the purpose of which is to force the piston against the sleeve or cover F, and hold the sleeve up against the steam-chest cover when the valve is not under steam-pressure.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

UNITED STATES PATENT OFFICE.
JOSHUA EVERED, OF MUSKEGON, MICHIGAN, ASSIGNOR TO HIMSELF AND JOSHUA DAVIS, OF SAME PLACE.
IMPROVEMENT IN BALANCED SLIDE-VALVES.
Specification forming part of Letters Patent No. 144,268, datedNovember 4, 1873; application filed September 13, 1873. 1
To all whom it may concern:
Be it known that I, JOSHUA EVERED, of Muskegon, in the county of Muskegon and State of Michigan, have invented a new and useful Improvement in Balanced Slide-Valve, of which the following is a specification:
The invention will first be fully described and then pointed out in the claim.
In the accompanying drawing, Figure 1 is a vertical section of Fig. 3 taken on the line as m. Fig. 2 is an inside view of the sleeve or cover. Fig. 3 is a top view of the valve, showing it with the sleeve or cover off.
Similar letters of reference indicate corresponding parts.
B is the face. G is is fitted a sleeve or cover, F, so that it plays freely but stealntight on the cylinder D packed by ring E. The top surface of this sleeve slides in contact with the under side of the cover of the steam-chest. In the center of the cylinder D is the piston G, which works in the interior cylinder H, and which is in communication with the valve-rod hole, as seen at I. J is the spiral spring beneath the piston G, the purpose of which is to force the piston against the sleeve or cover F, and hold the sleeve up against the steam-chest cover when the valve is not under steam-pressure. By this construction the pressure is so far taken off the face that the valve works with but slight friction, and results in a very material saving of
US144268D Improvement in balanced slide-valves Expired - Lifetime US144268A (en)

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US144268A true US144268A (en) 1873-11-04

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US144268D Expired - Lifetime US144268A (en) Improvement in balanced slide-valves

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