GB1260374A - Improved concrete pump - Google Patents
Improved concrete pumpInfo
- 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
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.
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)
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)
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 |
-
1968
- 1968-04-11 AT AT360468A patent/AT277770B/en not_active IP Right Cessation
-
1969
- 1969-04-05 DE DE19691917718 patent/DE1917718C3/en not_active Expired
- 1969-04-10 NL NL6905501A patent/NL6905501A/xx unknown
- 1969-04-10 CH CH546669A patent/CH496172A/en not_active IP Right Cessation
- 1969-04-10 GB GB1833369A patent/GB1260374A/en not_active Expired
- 1969-04-10 SE SE508469A patent/SE352142B/xx unknown
- 1969-04-10 PL PL13287869A patent/PL71185B1/pl unknown
- 1969-04-10 IE IE47669A patent/IE33209B1/en unknown
- 1969-04-11 JP JP2773769A patent/JPS4820490B1/ja active Pending
- 1969-04-11 CS CS260269A patent/CS156436B2/cs unknown
- 1969-04-11 FR FR6911294A patent/FR2006098A1/fr not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
AT277770B (en) | 1970-01-12 |
IE33209B1 (en) | 1974-04-17 |
FR2006098A1 (en) | 1969-12-19 |
CH496172A (en) | 1970-09-15 |
DE1917718B2 (en) | 1980-11-20 |
DE1917718A1 (en) | 1969-10-30 |
NL6905501A (en) | 1969-10-14 |
CS156436B2 (en) | 1974-07-24 |
IE33209L (en) | 1969-10-11 |
PL71185B1 (en) | 1974-04-30 |
JPS4820490B1 (en) | 1973-06-21 |
SE352142B (en) | 1972-12-18 |
DE1917718C3 (en) | 1981-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |