GB1030870A - Weighing mechanism - Google Patents
Weighing mechanismInfo
- Publication number
- GB1030870A GB1030870A GB4597461A GB4597461A GB1030870A GB 1030870 A GB1030870 A GB 1030870A GB 4597461 A GB4597461 A GB 4597461A GB 4597461 A GB4597461 A GB 4597461A GB 1030870 A GB1030870 A GB 1030870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- spring
- cylinder
- way
- 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
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/22—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for apportioning materials by weighing prior to mixing them
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid-Damping Devices (AREA)
Abstract
1,030,870. Dashpots. FISONS FERTILIZERS Ltd. March 20, 1963 [Dec. 22, 1961], No. 45974/61. Heading F2S. [Also in Division G1] In a dashpot for a weighing mechanism (see. Division G1), comprising a piston 1 provided with one-way valves 12, 13 and which works in a pressure cylinder 2 having its upper and lower chambers connected by channels 3, 4 provided with needle valves 5, 6, the channel 4 is also provided with a spring-loaded valve 7 which closes during an upward stroke of the piston 1 after a predetermined pressure in the upper cylinder chamber has been reached so that there is an abrupt increase in damping. The valve 7 comprises a disc 8 which is urged by a spring 9 away from its seating into engagement with a screw stop 11, the lower end of the spring 9 engaging an adjustable bushing 10. The screw 11 may be replaced by a push-rod linked with the mechanism to be damped. In a modification, Fig. II, not shown, a cylinder has a piston with a one-way valve and a central opening which receives a metering pin projecting upwardly from the base of the cylinder, the pin having at its upper end a collar which is only slightly smaller than the opening in the piston so that when they coincide the fluid flow is very much reduced. In a further modification, Fig. III (not shown), a compressible bellows is connected to a reservoir through three channels, one with a non-return valve which prevents flow from the bellows to the reservoir, one with a variable restrictor, and the other with a spring- loaded valve which is generally similar to the valve 7, Fig. 1. In Fig. V (not shown), the damper comprises a cylinder 104 with a piston 101 having through ports 105, 106 with a needle valve 108 and a through channel 109, 110 which has a needle valve 111 and is controlled by a one-way spring-loaded valve 113.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4597461A GB1030870A (en) | 1961-12-22 | 1961-12-22 | Weighing mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4597461A GB1030870A (en) | 1961-12-22 | 1961-12-22 | Weighing mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1030870A true GB1030870A (en) | 1966-05-25 |
Family
ID=10439315
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4597461A Expired GB1030870A (en) | 1961-12-22 | 1961-12-22 | Weighing mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1030870A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3679013A (en) * | 1970-05-12 | 1972-07-25 | Mettler Instrumente Ag | Weighing apparatus with damping means |
US4848495A (en) * | 1987-09-19 | 1989-07-18 | Yamato Scale Company, Limited Of Akashi, Japan | Hydraulic damper |
-
1961
- 1961-12-22 GB GB4597461A patent/GB1030870A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3679013A (en) * | 1970-05-12 | 1972-07-25 | Mettler Instrumente Ag | Weighing apparatus with damping means |
US4848495A (en) * | 1987-09-19 | 1989-07-18 | Yamato Scale Company, Limited Of Akashi, Japan | Hydraulic damper |
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