IT1023677B - Portable hand operated tube bending tool - has hydraulic pump for moving piston with bending former (NL051076) - Google Patents
Portable hand operated tube bending tool - has hydraulic pump for moving piston with bending former (NL051076)Info
- Publication number
- IT1023677B IT1023677B IT1220375A IT1220375A IT1023677B IT 1023677 B IT1023677 B IT 1023677B IT 1220375 A IT1220375 A IT 1220375A IT 1220375 A IT1220375 A IT 1220375A IT 1023677 B IT1023677 B IT 1023677B
- Authority
- IT
- Italy
- Prior art keywords
- hand operated
- oil
- bending
- hydraulic pump
- cylinder
- Prior art date
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The portable tube beanding machine consists of a hand operated hydraulic pump, to which a bending tool is attached. The pump has an oil reservoir from where oil is drawn into the master cylinder. The piston of this cylinder is outstroked by a compression spring and returned by an external hand operated lever. This forces the oil in the cylinder through a check valve into the working cylinder which in turn outstrokes piston to which a bending former is attached. To return the spring loaded working piston to its retracted position, the hand lever is pressed into its innermost position so that the two check valves are opened, thus allowing the oil to return to reservoir.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1220375A IT1023677B (en) | 1975-04-03 | 1975-04-03 | Portable hand operated tube bending tool - has hydraulic pump for moving piston with bending former (NL051076) |
DE19762613621 DE2613621A1 (en) | 1975-04-03 | 1976-03-30 | DEVICE FOR BENDING PIPES |
GB12802/76A GB1502572A (en) | 1975-04-03 | 1976-03-30 | Portable manually-controlled hydraulic pipe-bending apparatus |
US05/672,438 US4055069A (en) | 1975-04-03 | 1976-03-31 | Portable manually controlled hydraulic pipe bending apparatus |
NL7603337A NL7603337A (en) | 1975-04-03 | 1976-03-31 | PORTABLE HAND OPERATED HYDRAULIC PIPE BENDING DEVICE. |
ES446644A ES446644A1 (en) | 1975-04-03 | 1976-04-02 | Portable manually controlled hydraulic pipe bending apparatus |
FR7609611A FR2306027A1 (en) | 1975-04-03 | 1976-04-02 | PORTABLE HYDRAULIC UNIT WITH MANUAL CONTROL FOR BENDING TUBES |
DK161476A DK161476A (en) | 1975-04-03 | 1976-04-02 | A TRANSPORTABLE HYDRAULIC APPLIANCE FOR BOWING TUBE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1220375A IT1023677B (en) | 1975-04-03 | 1975-04-03 | Portable hand operated tube bending tool - has hydraulic pump for moving piston with bending former (NL051076) |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1023677B true IT1023677B (en) | 1978-05-30 |
Family
ID=11139542
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1220375A IT1023677B (en) | 1975-04-03 | 1975-04-03 | Portable hand operated tube bending tool - has hydraulic pump for moving piston with bending former (NL051076) |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1023677B (en) |
-
1975
- 1975-04-03 IT IT1220375A patent/IT1023677B/en active
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