GB804289A - Improvements in pumps for raising liquids - Google Patents
Improvements in pumps for raising liquidsInfo
- Publication number
- GB804289A GB804289A GB467556A GB467556A GB804289A GB 804289 A GB804289 A GB 804289A GB 467556 A GB467556 A GB 467556A GB 467556 A GB467556 A GB 467556A GB 804289 A GB804289 A GB 804289A
- Authority
- GB
- United Kingdom
- Prior art keywords
- impellers
- acid
- shaft
- casing
- pump
- 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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
804,289. Screw pumps; stuffing-box substitutes. PLASTIC CONSTRUCTIONS, Ltd. Feb. 14, 1957 [Feb. 15, 1956], No. 4675/56. Classes 110 (1) and 122 (5). In a pump comprising a number of screwtype impellers carried by a shaft within a casing to raise liquid in the casing up to an outlet, the impellers being spaced apart along the shaft to provide unrestricted spaces between adjacent impellers, the impellers and the casing are of acid-resistant material, and the shaft is of metal and is surrounded by, and fixed to, a tube or covering of acid-resistant material, the tube or covering carrying one or more of the impellers. A pump intended for insertion into a carboy for pumping acid from the carboy comprises three impellers 2, 3, 4, Fig. 3, each comprising a two-start screw thread. Unrestricted annular spaces 31, 32 extend between the impellers. The acid enters the pump casing 1 through holes 8 and is delivered through a pipe 9, Fig. 2, near the top of the casing 1. A tube 11, which may be shrunk on the driving shaft 5 and secured to it by pins 12, carries the two upper impellers 2, 3 and is secured as by welding to all three impellers 2, 3, 4. Impeller 4 has an extension 13 which forms a footstep bearing with a closure plug 7. A stationary carbon ring 22 is pressed by a spring 30 into sealing engagement with a carbon ring 23 rotating with the shaft 5. The rings 22, 23 are carried by resilient sleeves 25, 24 respectively. Sleeve 24 is clamped between a nut 27 and a flange formed on a bush 26 secured to the shaft 5. Sleeve 25 is clamped into a recess in a closure plug 6 by means of a ring 29. Further sealing is provided by a gland 34 and packing 33. A ring carried by side members 20 supports the driving motor 17, Fig. 1 (not shown). A handle (not shown) for supporting the pump may be carried by the motor. With the exception of the rod 5, which may be of stainless steel, the carbon rings 22, 23, the pins 12 and the spring 30, all parts of the pump and the sealing means are of an acid-resistant plastics, such as polyvinyl chloride. Other materials may be used, however, if the liquid handled is not an acid. The impellers may have single-start threads. Two or more than three impellers may be provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB467556A GB804289A (en) | 1956-02-15 | 1956-02-15 | Improvements in pumps for raising liquids |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB467556A GB804289A (en) | 1956-02-15 | 1956-02-15 | Improvements in pumps for raising liquids |
Publications (1)
Publication Number | Publication Date |
---|---|
GB804289A true GB804289A (en) | 1958-11-12 |
Family
ID=9781655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB467556A Expired GB804289A (en) | 1956-02-15 | 1956-02-15 | Improvements in pumps for raising liquids |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB804289A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2239675A (en) * | 1989-12-05 | 1991-07-10 | Man Fai Shiu | Pump for pumping liquid |
WO1999027256A1 (en) * | 1997-11-26 | 1999-06-03 | Triangle Engineering Consultants Limited | Pump/motor assembly |
NL1034232C2 (en) * | 2007-08-06 | 2009-02-09 | Gerardus Augustinus Maria Manshanden | Plastic pump and generator. |
WO2012013973A1 (en) | 2010-07-30 | 2012-02-02 | Hivis Pumps As | Screw type pump or motor |
-
1956
- 1956-02-15 GB GB467556A patent/GB804289A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2239675A (en) * | 1989-12-05 | 1991-07-10 | Man Fai Shiu | Pump for pumping liquid |
WO1999027256A1 (en) * | 1997-11-26 | 1999-06-03 | Triangle Engineering Consultants Limited | Pump/motor assembly |
NL1034232C2 (en) * | 2007-08-06 | 2009-02-09 | Gerardus Augustinus Maria Manshanden | Plastic pump and generator. |
WO2009020386A1 (en) * | 2007-08-06 | 2009-02-12 | Manshanden Gerardus Augustinus | Plastic pump and generator and method of manufacturing same |
WO2012013973A1 (en) | 2010-07-30 | 2012-02-02 | Hivis Pumps As | Screw type pump or motor |
US9382800B2 (en) | 2010-07-30 | 2016-07-05 | Hivis Pumps As | Screw type pump or motor |
USRE48011E1 (en) | 2010-07-30 | 2020-05-26 | Hivis Pumps As | Screw type pump or motor |
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