GB933136A - A piston seal for hydraulic pit-props - Google Patents
A piston seal for hydraulic pit-propsInfo
- Publication number
- GB933136A GB933136A GB877562A GB877562A GB933136A GB 933136 A GB933136 A GB 933136A GB 877562 A GB877562 A GB 877562A GB 877562 A GB877562 A GB 877562A GB 933136 A GB933136 A GB 933136A
- Authority
- GB
- United Kingdom
- Prior art keywords
- props
- piston seal
- hydraulic pit
- piston
- march
- 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
- 238000012856 packing Methods 0.000 abstract 2
- 229920001971 elastomer Polymers 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/28—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction of non-metals
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/166—Sealings between relatively-moving surfaces with means to prevent the extrusion of the packing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Sealing Devices (AREA)
- Closures For Containers (AREA)
Abstract
933,136. Piston packing. BWG BERGWERKUND WALZWERK-MASCHINENBAU G.m.b.H. March 7, 1962 [March 21, 1961], No. 8775/62. Class 122(1). The piston 11 of an hydraulic pit prop is sealed by a rubber &c. packing ring 12 backed by an anti-extension ring 13 of polyurethane.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB0061780 | 1961-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB933136A true GB933136A (en) | 1963-08-08 |
Family
ID=6973326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB877562A Expired GB933136A (en) | 1961-03-21 | 1962-03-07 | A piston seal for hydraulic pit-props |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE615366A (en) |
FR (1) | FR1317769A (en) |
GB (1) | GB933136A (en) |
NL (1) | NL276126A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4109921A (en) * | 1976-05-27 | 1978-08-29 | Taunus-Armaturen Gmbh | Seal for pistons and piston rods of cylinder-type actuators |
FR2412763A1 (en) * | 1977-12-23 | 1979-07-20 | Teves Gmbh Alfred | SEAL |
US5118119A (en) * | 1991-07-29 | 1992-06-02 | Allied-Signal Inc. | High temperature and high pressure seal retainer ring |
CN103738329A (en) * | 2013-12-24 | 2014-04-23 | 日照市北业制动泵有限公司 | Automobile hydraulic brake braking main cylinder |
-
0
- FR FR1317769D patent/FR1317769A/fr not_active Expired
- NL NL276126D patent/NL276126A/xx unknown
-
1962
- 1962-03-07 GB GB877562A patent/GB933136A/en not_active Expired
- 1962-03-21 BE BE615366A patent/BE615366A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4109921A (en) * | 1976-05-27 | 1978-08-29 | Taunus-Armaturen Gmbh | Seal for pistons and piston rods of cylinder-type actuators |
FR2412763A1 (en) * | 1977-12-23 | 1979-07-20 | Teves Gmbh Alfred | SEAL |
US5118119A (en) * | 1991-07-29 | 1992-06-02 | Allied-Signal Inc. | High temperature and high pressure seal retainer ring |
CN103738329A (en) * | 2013-12-24 | 2014-04-23 | 日照市北业制动泵有限公司 | Automobile hydraulic brake braking main cylinder |
CN103738329B (en) * | 2013-12-24 | 2016-03-02 | 日照市北业制动泵有限公司 | Brake master cylinder of car hydraulic brake |
Also Published As
Publication number | Publication date |
---|---|
FR1317769A (en) | 1963-05-08 |
NL276126A (en) | |
BE615366A (en) | 1962-07-16 |
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