GB729314A - Improvements in and relating to prepayment gas meters - Google Patents
Improvements in and relating to prepayment gas metersInfo
- Publication number
- GB729314A GB729314A GB529952A GB529952A GB729314A GB 729314 A GB729314 A GB 729314A GB 529952 A GB529952 A GB 529952A GB 529952 A GB529952 A GB 529952A GB 729314 A GB729314 A GB 729314A
- Authority
- GB
- United Kingdom
- Prior art keywords
- seating
- seatings
- flow
- gas
- valve
- 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
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
- G07F15/001—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity for gas
Landscapes
- Safety Valves (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
729,314. Prepayment gas meters. SMITH METERS, Ltd., and MIDLAND BANK EXECUTOR & TRUSTEE CO., Ltd., [Representative of CHARLES, A.], and CHARLES, J. A. Feb. 26, 1953 [Feb. 28, 1952], No. 5299/52. Class 27. [Also in Group XXIX] In a prepayment gas meter, a shut-off or inlet valve has two concentrically or co-axially disposed seatings 1, 2, Fig. 1, of which one seating is closed before the other so that between the times of closing of the two seatings gas at a restricted rate of flow is permitted to pass the valve. The valve pad 5 first engages the auxiliary seating 2 thus restricting the flow of gas to that which passes through the annular space between the two seatings until the pad displaces the seating 2 against the action of a leaf spring 6 or a counterweighted lever and engages the main seating 1 when the gas flow is completely arrested. A higher rate of restricted flow may be obtained by the provision of holes or notches 7 or longitudinal grooves in the outer peripheral face of the seating 2. The auxiliary seating may, alternatively, be a volute spring having its largest convolution secured within the main seating 1 or a loosely fitting sleeve surrounding the latter. In Fig. 5, the seatings are formed integrally with a moulded or diecast body 13 and are closed successively by a compressible portion 20 and a larger diameter portion 17 of the valve pad. Holes 16 and notches 15 may be provided to obtain the desired rate of restricted flow. In any of the constructions the valve pad may be connected to its arm by a spring-loaded spherical connection to permit relative angular movement. The seatings may be made from a material, such as graphite, not subject to corrosion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB529952A GB729314A (en) | 1952-02-28 | 1952-02-28 | Improvements in and relating to prepayment gas meters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB529952A GB729314A (en) | 1952-02-28 | 1952-02-28 | Improvements in and relating to prepayment gas meters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB729314A true GB729314A (en) | 1955-05-04 |
Family
ID=9793487
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB529952A Expired GB729314A (en) | 1952-02-28 | 1952-02-28 | Improvements in and relating to prepayment gas meters |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB729314A (en) |
-
1952
- 1952-02-28 GB GB529952A patent/GB729314A/en not_active Expired
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