GB900491A - Time-delay apparatus for closing a fluid-flow control valve - Google Patents
Time-delay apparatus for closing a fluid-flow control valveInfo
- Publication number
- GB900491A GB900491A GB4213658A GB4213658A GB900491A GB 900491 A GB900491 A GB 900491A GB 4213658 A GB4213658 A GB 4213658A GB 4213658 A GB4213658 A GB 4213658A GB 900491 A GB900491 A GB 900491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- detent
- valve
- head
- plate
- bobweight
- 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
-
- 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/48—Mechanical actuating means actuated by mechanical timing-device, e.g. with dash-pot
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Device For Special Equipments (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
900,491. Valves. ROTHERHAM & SONS Ltd., and BARKING BRASSWARE CO. Ltd. Nov. 17, 1959 [Dec. 31, 1958], No. 42136/58. Class 135. A fluid flow control valve is provided with apparatus for operating it to a closed position after a predetermined period of opening. The apparatus as applied to a rotary valve, comprises a plate 14 secured to the valve spindle 12, which carries a bob-weight 25, the plate being provided with notches 15, 16, 17 and 18 and carrying a pivoted pawl 27. A first lever 30 pivoted at 31 and having a cam 29 carries a bobweight 37 at one end and pin 32a at the other which engages a slot of a head 33, mounted on rods 34, 35, of a timing device 36. A second lever 38 pivoted at 39 and having a bobweight 40 is provided with a first arm 41 whose end bears on the head 33 and a second arm 43 having a detent 44. When the valve and plate 14 is rotated in a counterclockwise direction, the pawl 37 acts through cam 39 to move the head 33 to the dotted line position to set the timing device. The plate 14 is rotated to the required valve position and the detent 44 engages the appropriate notch 16, 17 or 18. The shapes of the notches and detent 44 allow the detent to ride out of notches 16, 17, for example if the position corresponding to notch 18 is required. At the end of the set time, the head 33 rises to lift the detent outward of the notch and the bobweight 25 falls, thus closing the valve. The bobweights may be replaced by suitable springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4213658A GB900491A (en) | 1958-12-31 | 1958-12-31 | Time-delay apparatus for closing a fluid-flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4213658A GB900491A (en) | 1958-12-31 | 1958-12-31 | Time-delay apparatus for closing a fluid-flow control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB900491A true GB900491A (en) | 1962-07-04 |
Family
ID=10423016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4213658A Expired GB900491A (en) | 1958-12-31 | 1958-12-31 | Time-delay apparatus for closing a fluid-flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB900491A (en) |
-
1958
- 1958-12-31 GB GB4213658A patent/GB900491A/en not_active Expired
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