GB1056478A - Improvements in or relating to piston pumps - Google Patents

Improvements in or relating to piston pumps

Info

Publication number
GB1056478A
GB1056478A GB51144/64A GB5114464A GB1056478A GB 1056478 A GB1056478 A GB 1056478A GB 51144/64 A GB51144/64 A GB 51144/64A GB 5114464 A GB5114464 A GB 5114464A GB 1056478 A GB1056478 A GB 1056478A
Authority
GB
United Kingdom
Prior art keywords
valve
entry
concrete
cylinder
discharge duct
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
Application number
GB51144/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB1056478A publication Critical patent/GB1056478A/en
Expired legal-status Critical Current

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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve
    • 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
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/90—Slurry pumps, e.g. concrete

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

1,056,478. Reciprocating pumps. O. C. G. WENNBERG. Dec. 16, 1964 [Dec. 19, 1963], No. 51144/64. Heading F1A. A piston pump for concrete or material of similar consistency comprises two feed pistons provided each in a working cylinder and alternately forcing the material from a supply container to a common discharge duct the entry of which is alternately put into communication with the cylinders by means of a valve having a through passage, the entry of the common discharge duct being common to both cylinders and having an entry area at least twice the cross-sectional area of each cylinder. Two side-by-side cylinders 44, 46, Figs. 1 and 4, are connected to a hopper 16 containing concrete. Each cylinder has a tubular piston 48 sliding on a stationary member 50. Pressure liquid is supplied or withdrawn through ducts 62, 64 alternately to opposite sides of each member 50 whereby the two pistons 48 are reciprocated in opposite directions. A discharge valve 24, pivoted on a shaft 26, can be swung by means of a pair of hydraulic jacks (not shown) acting on a double crank 32 so that its through passage 42 aligns with the piston which is performing a discharge stroke, whereby the concrete which was drawn from the hopper 16 during the previous suction stroke is discharged through the valve into a discharge duct 72. At its entry 74, Fig. 5, the discharge duct 72 is enlarged so as to embrace both positions of the valve passage 42, the area of the entry 74 being at least twice the cross-sectional area of each cylinder 44, 46. The valve has a cover plate 76 which covers the portion of the entry 74 not being used. An annular knife 70 carried by the valve co-operates with a stationary ring 68 to cut through the concrete when the valve position is being changed. The pump is mounted on a frame 10 supported by wheels 12.
GB51144/64A 1963-12-19 1964-12-16 Improvements in or relating to piston pumps Expired GB1056478A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1423663 1963-12-19

Publications (1)

Publication Number Publication Date
GB1056478A true GB1056478A (en) 1967-01-25

Family

ID=20298760

Family Applications (1)

Application Number Title Priority Date Filing Date
GB51144/64A Expired GB1056478A (en) 1963-12-19 1964-12-16 Improvements in or relating to piston pumps

Country Status (3)

Country Link
US (1) US3331332A (en)
DE (1) DE1453705A1 (en)
GB (1) GB1056478A (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398693A (en) * 1966-08-01 1968-08-27 Danken Inc Concrete pumping apparatus
DE2162406C3 (en) * 1971-12-16 1979-03-01 Karl Dipl.-Ing. 7024 Bernhausen Schlecht Slider device for a pump with two cylinders working in push-pull for pumping concrete or the like
AU472116B2 (en) * 1972-10-05 1976-05-13 Walter Scheele Kg Concrete pump
JPS503107U (en) * 1973-05-04 1975-01-14
US3989420A (en) * 1974-05-15 1976-11-02 J. I. Case Company Concrete pumping apparatus
IT1053265B (en) * 1975-11-24 1981-08-31 Fogt Indmasch CONTROL FLUID DISTRIBUTOR DEVICE FOR A PUMPING GROUP FOR CONCRETE OR SIMILAR
DE2415276C2 (en) * 1974-03-29 1976-11-11 Friedrich Schwing Pump for pumping thick matter, especially concrete
DE2739752A1 (en) * 1976-10-04 1978-04-06 Casagrande & C Spa DOSING PUMP FOR LIME CONCRETE
DE2909964A1 (en) * 1979-03-14 1980-09-25 Schwing Gmbh F DICKER PUMP, ESPECIALLY FOR CONCRETE
DE2933128C2 (en) * 1979-08-16 1985-09-26 Friedrich Wilh. Schwing Gmbh, 4690 Herne Thick matter pump, especially for pumping concrete
DE3304985A1 (en) * 1983-02-12 1984-08-23 Rudolf Ing. Riker (grad.), 8940 Memmingen PUMP UNIT FOR HEAVY-FLOWING SUBSTANCES, ABOUT CONCRETE
DE3419832A1 (en) * 1984-05-26 1985-11-28 Karl Dipl.-Ing. 7000 Stuttgart Schlecht PIPE DIVER OF A THICKENING MATERIAL, PARTICULARLY CONCRETE CONVEYING DOUBLE PISTON PUMP
US5030069A (en) * 1990-01-30 1991-07-09 Olson David A Material moving pump
CN105275792B (en) * 2014-07-22 2017-11-21 中联重科股份有限公司 Distribution device of concrete pumping device and concrete pumping device
US10900302B2 (en) 2018-07-27 2021-01-26 Country Landscapes & Tree Service, LLC Directional drilling systems, apparatuses, and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US863004A (en) * 1906-09-14 1907-08-13 Harry F Smith Valve for gas-producers.
US2467945A (en) * 1944-03-03 1949-04-19 Blaw Knox Co Valve for gas ducts
FR910526A (en) * 1945-04-27 1946-06-11 Concrete pump
US3146721A (en) * 1960-08-08 1964-09-01 Schwing Friedrich Wilhelm Hydraulic piston pump for the pumping of viscous pulpy or plastic substances
US3181469A (en) * 1963-02-07 1965-05-04 Hydro Con Corp Concrete pumping apparatus

Also Published As

Publication number Publication date
DE1453705A1 (en) 1969-09-18
US3331332A (en) 1967-07-18

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