GB1260374A - Improved concrete pump - Google Patents

Improved concrete pump

Info

Publication number
GB1260374A
GB1260374A GB1833369A GB1833369A GB1260374A GB 1260374 A GB1260374 A GB 1260374A GB 1833369 A GB1833369 A GB 1833369A GB 1833369 A GB1833369 A GB 1833369A GB 1260374 A GB1260374 A GB 1260374A
Authority
GB
United Kingdom
Prior art keywords
piston
concrete pump
outlet
pair
april
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
GB1833369A
Inventor
Friedrich Schwing
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.)
Friedrich Wilhelm Schwing GmbH
Original Assignee
Friedrich Wilhelm Schwing GmbH
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 Friedrich Wilhelm Schwing GmbH filed Critical Friedrich Wilhelm Schwing GmbH
Publication of GB1260374A publication Critical patent/GB1260374A/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
    • F04B7/00—Piston machines or pumps characterised by having positively-driven valving
    • F04B7/0019—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers
    • F04B7/0026—Piston machines or pumps characterised by having positively-driven valving a common distribution member forming a single discharge distributor for a plurality of pumping chambers and having an oscillating movement

Landscapes

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

Abstract

1,260,374. Concrete pump. F. SCHWING April 10, 1969 [April 11, 1968], No.18333/69. Heading F1A. A concrete pump comprises a pair of cylinders 1, 2 having out-of-phase pistons 3, 4 reciprocable therein, the cylinders 1, 2, being connected to a control housing having an outlet 8 and a pair of inlets 9, 10 and a pair of partially rotatable valve members 6, 7, which in their end positions connect the piston on a suction stroke (piston 4 as shown) to one inlet 10, and the piston on a delivery stroke to the outlet 8. At the end of the piston strokes the valve members switch over to the positions 6a, 7a to connect piston 4 to the outlet 8 and piston 3 to the inlet 9.
GB1833369A 1968-04-11 1969-04-10 Improved concrete pump Expired GB1260374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT360468A AT277770B (en) 1968-04-11 1968-04-11 Concrete pump controlled by control flaps with two pump cylinders and a common outlet opening

Publications (1)

Publication Number Publication Date
GB1260374A true GB1260374A (en) 1972-01-19

Family

ID=3552805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1833369A Expired GB1260374A (en) 1968-04-11 1969-04-10 Improved concrete pump

Country Status (11)

Country Link
JP (1) JPS4820490B1 (en)
AT (1) AT277770B (en)
CH (1) CH496172A (en)
CS (1) CS156436B2 (en)
DE (1) DE1917718C3 (en)
FR (1) FR2006098A1 (en)
GB (1) GB1260374A (en)
IE (1) IE33209B1 (en)
NL (1) NL6905501A (en)
PL (1) PL71185B1 (en)
SE (1) SE352142B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466782A (en) * 1981-06-10 1984-08-21 Niigata Engineering Co., Ltd. Valve unit for use in concrete pumps

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE675448C (en) * 1937-03-09 1939-05-09 Fritz Hell Piston pump
DE1780902U (en) * 1958-10-08 1959-01-08 Friedrich Wilh Schwing HYDRAULIC PISTON PUMP FOR DELIVERING BREATHING OR PLASTIC MASSES.
US3279382A (en) * 1964-04-14 1966-10-18 Royal Industries Pump

Also Published As

Publication number Publication date
FR2006098A1 (en) 1969-12-19
IE33209B1 (en) 1974-04-17
DE1917718C3 (en) 1981-10-01
IE33209L (en) 1969-10-11
DE1917718B2 (en) 1980-11-20
CS156436B2 (en) 1974-07-24
NL6905501A (en) 1969-10-14
PL71185B1 (en) 1974-04-30
AT277770B (en) 1970-01-12
CH496172A (en) 1970-09-15
JPS4820490B1 (en) 1973-06-21
DE1917718A1 (en) 1969-10-30
SE352142B (en) 1972-12-18

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee