GB478297A - Improvements in and relating to duplex hydraulic machines - Google Patents
Improvements in and relating to duplex hydraulic machinesInfo
- Publication number
- GB478297A GB478297A GB1402937A GB1402937A GB478297A GB 478297 A GB478297 A GB 478297A GB 1402937 A GB1402937 A GB 1402937A GB 1402937 A GB1402937 A GB 1402937A GB 478297 A GB478297 A GB 478297A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipes
- pump
- valve
- tappets
- broaching
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/06—Driving main working members rotary shafts, e.g. working-spindles driven essentially by fluid pressure or pneumatic power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2705/00—Driving working spindles or feeding members carrying tools or work
- B23Q2705/02—Driving working spindles
- B23Q2705/04—Driving working spindles by fluid pressure
- B23Q2705/046—Driving working spindles by fluid pressure for broaching machines
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finger-Pressure Massage (AREA)
- Massaging Devices (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
478,297. Broaching-machines. TRIGGS, W. W. (Lapointe Machine Tool Co.) May 20, 1937, No. 14029. [Class 83 (iii)] [Also in Group XXIX] In a broaching-machine comprising a pair of members 10, 20, operated alternately by hydraulic motors 12, 22, one end of each of which is supplied with pressure liquid e.g. by a reversible pump P, and having their opposite ends cross connected at 33, the pressure supply pipes 30, 31 are alternately put into communication with the cross connection through pipes 34, 40 to make up leakage and to assist upward movement of the respective pistons. A check valve 41 and an adjustable needle valve 42 are provided in each of the pipes 34, 40; the pressure in the connection being determined by a relief valve 45. Each member 10, 20 at the end of its power stroke operates a bell crank lever 53 through tappets 61 or 51 to reverse the pump P. A secondary pump 77 supplies liquid to a cylinder 87 for operating tool feeding or other devices, the distributing valve 75 for the cylinder being operated at the ends of the stroke of member 10 through tappets 71, 72.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1402937A GB478297A (en) | 1937-05-20 | 1937-05-20 | Improvements in and relating to duplex hydraulic machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1402937A GB478297A (en) | 1937-05-20 | 1937-05-20 | Improvements in and relating to duplex hydraulic machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB478297A true GB478297A (en) | 1938-01-17 |
Family
ID=10033697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1402937A Expired GB478297A (en) | 1937-05-20 | 1937-05-20 | Improvements in and relating to duplex hydraulic machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB478297A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2440388A (en) * | 1945-07-10 | 1948-04-27 | Jeffrey Mfg Co | Hydraulic system for reciprocating breaker plates for reversible rotary crushers |
| US2992812A (en) * | 1958-05-01 | 1961-07-18 | De Long Corp | Jacking mechanism and controls |
-
1937
- 1937-05-20 GB GB1402937A patent/GB478297A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2440388A (en) * | 1945-07-10 | 1948-04-27 | Jeffrey Mfg Co | Hydraulic system for reciprocating breaker plates for reversible rotary crushers |
| US2992812A (en) * | 1958-05-01 | 1961-07-18 | De Long Corp | Jacking mechanism and controls |
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