GB401437A - Improvements in an expansion valve - Google Patents

Improvements in an expansion valve

Info

Publication number
GB401437A
GB401437A GB20127/32A GB2012732A GB401437A GB 401437 A GB401437 A GB 401437A GB 20127/32 A GB20127/32 A GB 20127/32A GB 2012732 A GB2012732 A GB 2012732A GB 401437 A GB401437 A GB 401437A
Authority
GB
United Kingdom
Prior art keywords
casing
engaging
link
fitted
spring loaded
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
Application number
GB20127/32A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB401437A publication Critical patent/GB401437A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
    • G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
    • G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
    • G05D16/0683—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane
    • G05D16/0686—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane characterised by the form of the lever

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

401,437. Pressure-regulating valves. LIDSEEN, G., 830, South Central Avenue, Chicago, U.S.A. July 15, 1932, No. 20127. Convention date, March 25. [Class 135.] A pressure regulator has a needle valve member loosely supported by a spring loaded abutment coupled through toggle link mechanism to a spring loaded actuating bellows. The actuating bellows 20 is secured to a flange 21 on a plug 19 screwed in the casing and at its closed end is fitted internally with a bearer plate 23 for a loading spring 25 arranged within a tubular adjusting screw screwed into the plug 19. Externally the closed end is fitted with an abutment plate 22 engaging one link 36 of the toggle link mechanism. This link which is substantially disc shaped with a convex upper surface has a projection 37 loosely engaging a hole 38 in the casing and is formed with passage ways 40. A second toggle link 42 is arranged between a projection on the link and a hole in a spring loaded abutment plate 30. This plate is loosely guided by a tongue 31 working in a groove in the casing and is provided centrally with a curved depression to receive a corresponding head on the valve spindle which is secured in position by a bifurcated clip engaging an annular groove 35. The tapered valve member co-operates with a seat 6 held in position by bending over a flange on the casing and is so arranged that the point never leaves the passage way 8. The passage way 8 leads by way of a larger passage 5 to an inlet chamber c fitted with a strainer 1. The exterior surface of a closure plug 27 preventing access to the screw driver slot 26 for adjusting the load is made cylindrical to prevent easy removal and the plugs 12 and 19 also have cylindrical outer surfaces but have a notch 67 to receive a special removing wrench. In a modification the pivoted member 36 is replaced by a reciprocating member having two parallel limbs carrying two guide rollers engaging the casing and straddling a third guide roller adjustably mounted on the casing.
GB20127/32A 1932-03-25 1932-07-15 Improvements in an expansion valve Expired GB401437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US401437XA 1932-03-25 1932-03-25

Publications (1)

Publication Number Publication Date
GB401437A true GB401437A (en) 1933-11-16

Family

ID=21909356

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20127/32A Expired GB401437A (en) 1932-03-25 1932-07-15 Improvements in an expansion valve

Country Status (1)

Country Link
GB (1) GB401437A (en)

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