GB1329629A - Pressure fluid cylinders - Google Patents
Pressure fluid cylindersInfo
- Publication number
- GB1329629A GB1329629A GB5929271A GB5929271A GB1329629A GB 1329629 A GB1329629 A GB 1329629A GB 5929271 A GB5929271 A GB 5929271A GB 5929271 A GB5929271 A GB 5929271A GB 1329629 A GB1329629 A GB 1329629A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- slot
- cylinder
- transmitting member
- sealing
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/082—Characterised by the construction of the motor unit the motor being of the slotted cylinder type
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Actuator (AREA)
Abstract
1329629 Fluid pressure actuators ORIGA CYLINDRAR A B 21 Dec 1971 [22 Dec 1970] 59292/71 Heading F1D [Also in Division F2] A fluid pressure piston and cylinder unit comprises a piston 2 having a transmitting member 4 which projects through a slot 3 in the wall of the cylinder 1, and a sealing member 7 which is attracted into sealing relationship with the slot by magnetic forces and moved away from the slot between the piston and the transmitting member. The sealing member may be a lining or a strip 7 which is attracted to the slot by permanent or electromagnets 8, 9 and depressed in the vicinity of the transmitting member 4 by a bowed slide surface on the transmitting member; the sealing member 7 may also be of a permanentmagnetic material. The cylinder, may be made of aluminium or glass fibre reinforced plastics and formed with a wall thickened on its lower side as shown to increase its strength; the cylinder may have other cross-sectional shapes and may also be curved, in which case the piston preferably is hinged. Auxiliary seals of elastomeric material may also be provided adjacent the slot or sealing member 7. When the sealing member 7 is open to the interior of the cylinder only on one side the magnets 8 or 9 need only be provided on that side. In a modification, Figs. 3 & 4 (not shown), a further sealing strip (30) is provided on the outside of the slot and two bowed slide surfaces are provided on the transmitting member (14), the further sealing strip being pressed against the slot by a sealing collar (31) on the transmitting member. In this modification fluid passages in the piston and transmitting member are used to pass drive fluid (e. g. compressed air or oil for carrying out a machining operation by an external unit after the piston has been moved) from the cylinder to an outlet (28), a shuttle valve (26) being provided in the piston to close off the passage (20) or the passage (21) depending on which side of the piston the fluid pressure is applied. In a further modification, Fig. 5 (not shown) the shuttle valve is replaced by spring-loaded ball valves (32, 33).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1740070A SE338717B (en) | 1970-12-22 | 1970-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1329629A true GB1329629A (en) | 1973-09-12 |
Family
ID=20303595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5929271A Expired GB1329629A (en) | 1970-12-22 | 1971-12-21 | Pressure fluid cylinders |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS5128793B1 (en) |
| AU (1) | AU464724B2 (en) |
| BE (1) | BE777128A (en) |
| CA (1) | CA963502A (en) |
| CH (1) | CH541727A (en) |
| CS (1) | CS153424B2 (en) |
| DD (1) | DD97272A5 (en) |
| DK (1) | DK133518B (en) |
| FI (1) | FI56727C (en) |
| FR (1) | FR2118927B1 (en) |
| GB (1) | GB1329629A (en) |
| IT (1) | IT943323B (en) |
| NL (1) | NL169511C (en) |
| NO (1) | NO128967B (en) |
| SE (1) | SE338717B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4400483A1 (en) * | 1994-01-11 | 1995-07-20 | Invest Tech Ag | Linear drive cylinder |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164893A (en) * | 1977-08-04 | 1979-08-21 | Bo Granbom | Sealing device at pressure fluid cylinders |
| DE3244616C2 (en) * | 1982-12-02 | 1986-06-19 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Device for measuring feed movements |
| DE3340291A1 (en) * | 1983-11-08 | 1985-05-23 | ORIGA GmbH Pneumatik, 7024 Filderstadt | PRESSURE CYLINDER |
| DE3529350A1 (en) * | 1985-08-16 | 1987-02-26 | Knorr Bremse Ag | PISTONLESS WORK CYLINDER |
| GB9501117D0 (en) * | 1995-01-20 | 1995-03-08 | Norgren Martonair Gmbh | Fluid-powered cylinder |
| CN105041763A (en) * | 2015-07-06 | 2015-11-11 | 上海大学 | Belt type hydraulic lateral lifting device |
| CN108674116B (en) * | 2018-05-08 | 2024-05-17 | 山河智能特种装备有限公司 | Double-cavity floating cylinder, single swing arm suspension system applied by same and suspension adjusting method |
-
1970
- 1970-12-22 SE SE1740070A patent/SE338717B/xx unknown
-
1971
- 1971-12-16 FR FR7145280A patent/FR2118927B1/fr not_active Expired
- 1971-12-17 FI FI359271A patent/FI56727C/en active
- 1971-12-17 CS CS880271A patent/CS153424B2/cs unknown
- 1971-12-20 AU AU37086/71A patent/AU464724B2/en not_active Expired
- 1971-12-20 DD DD15974171A patent/DD97272A5/xx unknown
- 1971-12-20 NO NO470371A patent/NO128967B/no unknown
- 1971-12-21 NL NL7117604A patent/NL169511C/en not_active IP Right Cessation
- 1971-12-21 GB GB5929271A patent/GB1329629A/en not_active Expired
- 1971-12-21 CA CA130,684A patent/CA963502A/en not_active Expired
- 1971-12-21 IT IT7118171A patent/IT943323B/en active
- 1971-12-21 DK DK627171A patent/DK133518B/en not_active IP Right Cessation
- 1971-12-21 CH CH1863471A patent/CH541727A/en not_active IP Right Cessation
- 1971-12-22 BE BE777128A patent/BE777128A/en not_active IP Right Cessation
- 1971-12-22 JP JP10454571A patent/JPS5128793B1/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4400483A1 (en) * | 1994-01-11 | 1995-07-20 | Invest Tech Ag | Linear drive cylinder |
| US5507218A (en) * | 1994-01-11 | 1996-04-16 | Invest Tech Ag | Linear-drive cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| AU464724B2 (en) | 1975-09-04 |
| NL169511C (en) | 1982-07-16 |
| FR2118927B1 (en) | 1976-04-30 |
| FI56727B (en) | 1979-11-30 |
| NL7117604A (en) | 1972-06-26 |
| NO128967B (en) | 1974-02-04 |
| DE2162572A1 (en) | 1972-07-20 |
| NL169511B (en) | 1982-02-16 |
| DE2162572B2 (en) | 1976-05-20 |
| DK133518B (en) | 1976-05-31 |
| IT943323B (en) | 1973-04-02 |
| JPS5128793B1 (en) | 1976-08-21 |
| AU3708671A (en) | 1973-06-28 |
| CH541727A (en) | 1973-09-15 |
| DK133518C (en) | 1976-10-18 |
| CS153424B2 (en) | 1974-02-25 |
| DD97272A5 (en) | 1973-04-20 |
| FI56727C (en) | 1980-03-10 |
| SE338717B (en) | 1971-09-13 |
| FR2118927A1 (en) | 1972-08-04 |
| CA963502A (en) | 1975-02-25 |
| BE777128A (en) | 1972-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PE20 | Patent expired after termination of 20 years |