GB1025496A - Hydraulic advancer for tubs - Google Patents
Hydraulic advancer for tubsInfo
- Publication number
- GB1025496A GB1025496A GB1469164A GB1469164A GB1025496A GB 1025496 A GB1025496 A GB 1025496A GB 1469164 A GB1469164 A GB 1469164A GB 1469164 A GB1469164 A GB 1469164A GB 1025496 A GB1025496 A GB 1025496A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- fluid
- valve
- advancer
- line
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61J—SHIFTING OR SHUNTING OF RAIL VEHICLES
- B61J3/00—Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car propelling devices therefor
- B61J3/08—Devices with reciprocated pushing bars or like driving mechanisms combined with the track for shunting or hauling cars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1,025,496. Propelling mine cars. G. DUSTERLOH FABRIK FUR BERGWERKSBEDARF G.m.b.H. April 9, 1964 [May 30, 1963], No. 14691/64. Heading B7L. An hydraulic advancer for mine cars has two actuators 16, 19 interconnected by hydraulic transmission 14, the actuator pistons 17, 20 moving faster at the start of the forward stroke and throughout the return stroke than during the rest of the forward stroke, the advancer having a control valve 22 controlled by the pressure of fluid acting on pistons 29, 33. A main pump 3 and a feed pump 4 pass fluid back to a tank 10 via lines 6, 7, 11 and valves 8, 9, 5 until, to operate the advancer, valve 5 is closed causing a pressure build up in line 11 to cause valves 8, 9 to deliver fluid from the pumps to lines 12, 13. From line 12 fluid passes through valve 15 to move piston 17 and fluid displaced by piston 17 with fluid from lines 13 and 13A and transmission 14 acts through duct 18 on piston 20 to rapidly return the piston. Fluid from ahead of piston 20 passing to tank 10 via valves &c. 15, 21, 22, 23, 24. When piston 17 passes line 25A, fluid acts via shuttle valve 27 on piston 29 to reverse valve 22 against a weak spring 30. Piston 20 then has applied to its right-hand face fluid from ahead of piston 17 via lines &c. 18, 14, 13, 22, 21, 15 and fluid from pump 4 via lines &c. 7, 13, 22. When piston 17 passes duct 18 pressure builds up in line 31 and causes piston 32B to change over valve 15. Pressure fluid in transmission 14 acts via cylinder 19, line 25B and shuttle valve 26 on piston 29 and as the same pressure acts on piston 33, the spring 30 changes over valve 22. Only main pump 3 delivers fluid to piston 20 via valve 15, the piston therefore advances at normal speed. Fluid displaced by piston 20 acts via lines &c. 18, 34, 31, together with fluid from pump 4 via lines &c. 7, 9, 13, 14, 34, 31, to rapidly return the piston 17; when piston 17 passes duct 18 the fluid passes directly through this duct into actuator 16. The cycle then repeats. Should the advancer be overloaded, the fluid from pump 3 is returned to tank 10 via valve 8. The actuators have several closable bores where line 25 can be connected to adjust the stroke of the advancer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DED0041674 | 1963-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1025496A true GB1025496A (en) | 1966-04-14 |
Family
ID=7046251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1469164A Expired GB1025496A (en) | 1963-05-30 | 1964-04-09 | Hydraulic advancer for tubs |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE648264A (en) |
| DE (1) | DE1430966A1 (en) |
| GB (1) | GB1025496A (en) |
| NL (1) | NL6403342A (en) |
-
1963
- 1963-05-30 DE DE19631430966 patent/DE1430966A1/en active Pending
-
1964
- 1964-03-26 NL NL6403342A patent/NL6403342A/xx unknown
- 1964-04-09 GB GB1469164A patent/GB1025496A/en not_active Expired
- 1964-05-22 BE BE648264D patent/BE648264A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6403342A (en) | 1964-12-01 |
| BE648264A (en) | 1964-09-16 |
| DE1430966A1 (en) | 1968-10-31 |
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