GB1229764A - - Google Patents
Info
- Publication number
- GB1229764A GB1229764A GB1229764DA GB1229764A GB 1229764 A GB1229764 A GB 1229764A GB 1229764D A GB1229764D A GB 1229764DA GB 1229764 A GB1229764 A GB 1229764A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- piston
- shaft
- space
- tank
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B7/00—Piston machines or pumps characterised by having positively-driven valving
- F04B7/02—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated
- F04B7/0208—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the distribution member forming both the inlet and discharge distributor for one single pumping chamber
- F04B7/0225—Piston machines or pumps characterised by having positively-driven valving the valving being fluid-actuated the distribution member forming both the inlet and discharge distributor for one single pumping chamber and having a slidable movement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
- Y10T137/4245—Cleaning or steam sterilizing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87676—With flow control
- Y10T137/87684—Valve in each inlet
- Y10T137/87692—With common valve operator
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Mechanically-Actuated Valves (AREA)
- Sliding Valves (AREA)
Abstract
1,229,764. Valves. F. W. SCHWING. 27 Jan., 1970 [5 Feb., 1969], No. 3835/70. Heading F2V. A control valve, which is suitable for use in conjunction with a concrete-conveying pump, comprises a closure member 2 having oppositely directed projections 19 within which are fixedly received valve operating shafts 4, a housing within which the valve member moves and which is formed from two abutting and identical bearing plates 20 terminated at each end by twopart stop plates 23, the bearing and stop plates together defining two ports 3 each of which registers with one duct leading from the pump, and a pair of piston and cylinder valve actuators 6. Each operating shaft 4 has secured to its end a piston 12 with such piston co-operating with a cylinder 13 secured by a nut 16 to the valve housing, the nut 16 also serving to adjust a packing 5 surrounding each shaft 4. Covering each shaft 4 and extending between its piston 12 and the valve member projection 19 is an erosion tube 10 the outer diameter of which is smaller than the inner diameter of the cylinder 13 such that an intermediate space 7 is formed therebetween, the space communicating via a line 8 with a tank 9 containing flushing liquid. In operation, a multi-way valve 25 determines the direction of movement of the operating shafts 4 and hence of the valve member 2. In consequence, if piston 12 moves in the direction of arrow a, flushing liquid is drawn into the space 7 and so cleans the portion of the shaft within such space. On the return stroke, with motion in the direction of arrow b, the flushing fluid and impurities entrained therein are returned to the tank 9 where such impurities settle, the tank 9 being made at least in part of transparent material to so facilitate viewing of the accumulation of impurities. In modifications (Figs. 5 and 6, not shown), the valve member may be carried by one shaft only, or alternatively, two valve members may be arranged in series in the longitudinal direction of one valve actuating rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691905706 DE1905706C2 (en) | 1969-02-05 | 1969-02-05 | Control slide for thick matter pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1229764A true GB1229764A (en) | 1971-04-28 |
Family
ID=5724418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1229764D Expired GB1229764A (en) | 1969-02-05 | 1970-01-27 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3640303A (en) |
| JP (1) | JPS4820811B1 (en) |
| AT (1) | AT296033B (en) |
| BE (1) | BE745435A (en) |
| CH (1) | CH503198A (en) |
| CS (1) | CS177027B2 (en) |
| DE (1) | DE1905706C2 (en) |
| ES (1) | ES376161A1 (en) |
| FR (1) | FR2033928A5 (en) |
| GB (1) | GB1229764A (en) |
| NL (1) | NL142763B (en) |
| PL (1) | PL80445B1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2700800C3 (en) * | 1977-01-11 | 1980-10-16 | Herbert 4690 Herne Kuhlmann | Control valve for concrete pumps |
| US4335733A (en) * | 1979-09-17 | 1982-06-22 | Richards John A | Valve for use in handling abrasive materials and method of wear prevention |
| DE3006542C2 (en) * | 1980-02-21 | 1985-01-17 | Friedrich Wilh. Schwing Gmbh, 4690 Herne | Control slide for slurry pumps |
| DE3528746A1 (en) * | 1985-08-10 | 1987-02-12 | Schwing Gmbh F | STEERING VALVES FOR DICKER PUMPS |
| US6086349A (en) * | 1992-05-26 | 2000-07-11 | Del Monte; Ernest J. | Variable wall concrete molding machine |
| AU6686796A (en) * | 1995-08-02 | 1997-02-26 | Parker-Hannifin Corporation | Lockout valve |
| DE102007004338A1 (en) * | 2007-01-29 | 2008-07-31 | Schwing Gmbh | Thick material pump, particularly concrete pump, has processing device for sewage water from cleaning of thick material pump, where processing device has collection container, conveyor and processing container |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1317563A (en) * | 1919-09-30 | And six twenty | ||
| GB527640A (en) * | 1938-05-14 | 1940-10-14 | Sulzer Ag | Improvements in or relating to sealing apparatus for preventing the escape of fluid between a rotating shaft and a wall therough which it passes |
| US2478811A (en) * | 1947-05-19 | 1949-08-09 | W K M Company Inc | Power-operated gate valve |
| US2628872A (en) * | 1948-02-05 | 1953-02-17 | American Instr Co Inc | Fluid pressure intensifier |
| US2912214A (en) * | 1954-03-01 | 1959-11-10 | Cameron Iron Works Inc | Blowout preventer |
| US3244399A (en) * | 1962-12-19 | 1966-04-05 | Cameron Iron Works Inc | Gate valve |
-
1969
- 1969-02-05 DE DE19691905706 patent/DE1905706C2/en not_active Expired
-
1970
- 1970-01-27 GB GB1229764D patent/GB1229764A/en not_active Expired
- 1970-01-29 CH CH124870A patent/CH503198A/en not_active IP Right Cessation
- 1970-01-30 CS CS701A patent/CS177027B2/cs unknown
- 1970-02-03 NL NL707001483A patent/NL142763B/en unknown
- 1970-02-03 JP JP45009027A patent/JPS4820811B1/ja active Pending
- 1970-02-03 US US8381A patent/US3640303A/en not_active Expired - Lifetime
- 1970-02-03 PL PL1970138537A patent/PL80445B1/pl unknown
- 1970-02-03 ES ES376161A patent/ES376161A1/en not_active Expired
- 1970-02-04 AT AT102370A patent/AT296033B/en not_active IP Right Cessation
- 1970-02-04 FR FR7003865A patent/FR2033928A5/fr not_active Expired
- 1970-02-04 BE BE745435D patent/BE745435A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| US3640303A (en) | 1972-02-08 |
| PL80445B1 (en) | 1975-08-30 |
| DE1905706B1 (en) | 1970-02-26 |
| ES376161A1 (en) | 1972-03-01 |
| DE1905706C2 (en) | 1970-11-12 |
| BE745435A (en) | 1970-07-16 |
| NL7001483A (en) | 1970-08-07 |
| JPS4820811B1 (en) | 1973-06-23 |
| FR2033928A5 (en) | 1970-12-04 |
| CH503198A (en) | 1971-02-15 |
| AT296033B (en) | 1972-01-25 |
| NL142763B (en) | 1974-07-15 |
| CS177027B2 (en) | 1977-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4854832A (en) | Mechanical shift, pneumatic assist pilot valve for diaphragm pump | |
| US2562615A (en) | Hydraulic control system responsive to pressure and flow rate | |
| US3869963A (en) | Hydraulic actuator having a self-aspirating actuator rod seal | |
| GB1425046A (en) | Pump for metering predeterminded quantities of liquid | |
| ES8303625A1 (en) | Electrohydraulic three-port, two position valve | |
| US2448104A (en) | Differential concrete pump | |
| GB1229764A (en) | ||
| SE302888B (en) | ||
| US3540741A (en) | Seal assembly for a hydraulically operated cylinder | |
| US2748752A (en) | Automatically reversing valves | |
| US3467140A (en) | Hermetical sealing mechanism | |
| US3045650A (en) | Fluid actuating device | |
| US2952246A (en) | Valve | |
| US3806134A (en) | Seal for a pneumatic actuator | |
| US3085515A (en) | Priming pump | |
| US2735404A (en) | L- komph | |
| US3559538A (en) | Actuator | |
| US2652780A (en) | Hydraulic pressure booster | |
| US4020746A (en) | Hydraulically operable linear motor | |
| US3368458A (en) | Hydraulic motor | |
| US2893353A (en) | Three position actuator cylinder | |
| US3382770A (en) | Mechanism for controlling a fluid motor | |
| US3632236A (en) | Cam operated fluid pumps | |
| US2463460A (en) | Thrust balanced screw pump | |
| US3151805A (en) | Vacuum operated pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |