FR2324494A1 - Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring - Google Patents
Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return springInfo
- Publication number
- FR2324494A1 FR2324494A1 FR7529035A FR7529035A FR2324494A1 FR 2324494 A1 FR2324494 A1 FR 2324494A1 FR 7529035 A FR7529035 A FR 7529035A FR 7529035 A FR7529035 A FR 7529035A FR 2324494 A1 FR2324494 A1 FR 2324494A1
- Authority
- FR
- France
- Prior art keywords
- spring
- piston type
- return spring
- type automatic
- compression return
- 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.)
- Withdrawn
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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/37—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers of foam-like material, i.e. microcellular material, e.g. sponge rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
- B61G9/08—Draw-gear combined with buffing appliances with fluid springs or fluid shock-absorbers; Combinations thereof
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fluid-Damping Devices (AREA)
- Springs (AREA)
Abstract
The automatic railway coupler has a piston type hydraulic shock adsorber and compression return spring. The spring is made of light cellular flexible material and is either cylindrical or prismatic in shape. The ratio of spring area to length is roughly 3 to 4 and its compressability at least 80% of its length. This spring consists of stacked elements with projections and hollows to mate with each other and hold the assembly together. On the outer lateral surface of the spring are grooves to help retain shape in the compressed state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7529035A FR2324494A1 (en) | 1975-09-22 | 1975-09-22 | Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7529035A FR2324494A1 (en) | 1975-09-22 | 1975-09-22 | Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2324494A1 true FR2324494A1 (en) | 1977-04-15 |
Family
ID=9160309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7529035A Withdrawn FR2324494A1 (en) | 1975-09-22 | 1975-09-22 | Piston type automatic railway coupler - has hydraulic damper and cellular lightweight compression return spring |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2324494A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004006998A1 (en) * | 2002-07-11 | 2004-01-22 | Tecpharma Licensing Ag | Needle-free injection device |
AU2003243875B2 (en) * | 2002-07-11 | 2006-07-06 | Tecpharma Licensing Ag | Needle-free injection device |
-
1975
- 1975-09-22 FR FR7529035A patent/FR2324494A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004006998A1 (en) * | 2002-07-11 | 2004-01-22 | Tecpharma Licensing Ag | Needle-free injection device |
AU2003243875B2 (en) * | 2002-07-11 | 2006-07-06 | Tecpharma Licensing Ag | Needle-free injection device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |