GB546420A - Improvements in and relating to pumps - Google Patents
Improvements in and relating to pumpsInfo
- Publication number
- GB546420A GB546420A GB114141A GB114141A GB546420A GB 546420 A GB546420 A GB 546420A GB 114141 A GB114141 A GB 114141A GB 114141 A GB114141 A GB 114141A GB 546420 A GB546420 A GB 546420A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pumps
- pressure pump
- common
- filter
- 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
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/14—Pumps characterised by muscle-power operation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
546,420. Reciprocating pumps. HUNT, W. F., and HUNT, O. F., [Representatives of ZWICKY, J.]. Jan. 28, 1941, No. 1141. [Class 102 (i)] A pumping plant, suitable for the operation of hydraulic jacks or the filling of reservoirs under pressure, comprises . a high-pressure pump having its inlet connected to the delivery side of a double-acting lowpressure pump of greater volumetric capacity, the two pumps having a common operating means, a common piston rod 21, and a common delivery chamber 13 into which the low-pressure pump delivers through a non-return valve 14, and a hand-operated valve 17 for by-passing the low-pressure pump when the pumps are operating against a considerable back pressure. The low-pressure pump may be of the kind described in Specifica- tions 218,379, [Class 102 (i)], or 538,870, and is supplied through an inlet 9, a non-return valve 15 (not shown), and a filter 8. The highpressure pump comprises a hollow displacing plunger 25 loosely fitting in a cylinder 19 and connected there with by a non-return valve 24, and delivery ports 26 leading through a non- return ball-valve 27 to the common delivery chamber 13. A screw-down relief valve 28 retains the valve 27 in position and connects the chamber 13 with the inlet side of the filter 8. This relief valve may be used to drain the apparatus. In a modification the stem of the valve 28 is within the filter. A two-way or a three-way distributing valve 29 may direct the liquid to either or both of a pair of hydraulic jacks.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB114141A GB546420A (en) | 1941-01-28 | 1941-01-28 | Improvements in and relating to pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB114141A GB546420A (en) | 1941-01-28 | 1941-01-28 | Improvements in and relating to pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB546420A true GB546420A (en) | 1942-07-13 |
Family
ID=9716892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB114141A Expired GB546420A (en) | 1941-01-28 | 1941-01-28 | Improvements in and relating to pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB546420A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190150A (en) * | 1986-04-04 | 1987-11-11 | Lucisano F & C Srs Snc | Hand-operated pump |
-
1941
- 1941-01-28 GB GB114141A patent/GB546420A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2190150A (en) * | 1986-04-04 | 1987-11-11 | Lucisano F & C Srs Snc | Hand-operated pump |
GB2190150B (en) * | 1986-04-04 | 1989-11-29 | Lucisano F & C Srs Snc | Hand-operated pump |
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