GB372538A - A machine with fluid operated feed mechanism - Google Patents
A machine with fluid operated feed mechanismInfo
- Publication number
- GB372538A GB372538A GB1204931A GB1204931A GB372538A GB 372538 A GB372538 A GB 372538A GB 1204931 A GB1204931 A GB 1204931A GB 1204931 A GB1204931 A GB 1204931A GB 372538 A GB372538 A GB 372538A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feed
- valve
- pinion
- operated
- rise
- 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
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/32—Thread cutting; Automatic machines specially designed therefor by milling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
372,538. Hydraulic transmission of power. McLEOD, R. J. and COCKBURN, D. H., of Power Plant Co., West Drayton, Middlesex. April 23, 1931, No. 12049. [Class 69 (ii).] In fluid-operated feed mechanisms for gear cutting and other machines, the rise of pressure occasioned by the arrest of the feed is utilized to cause the return motion, means being preferably provided whereby the return is not initiated until a predetermined interval has elapsed after the stoppage of the feed. In the form shown, a tool or work holder J is operated by a screw I from a rack G carried by a piston f, a control valve D determining the direction of motion. The valve D is initially set by a lever d<1> so that feed takes place until an adjustable stop j contacts with a fixed abutment. The consequent rise of pressure in a supply pipe 12 then moves a spring-pressed valve L to admit pressure to a cylinder M to cause a plate N to rise and carry a pinion O into engagement with a pinion O<1> on a driven spindle a. The pinion O has adjustable cam members t, q, the former being adapted to move the upper end of a latch Q into the path of the latter. When the latch is tripped by the cam q, a spindle r<2> is operated by a spring s and the valve D is moved into position for the return motion by quadrants R, R<1>.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1204931A GB372538A (en) | 1931-04-23 | 1931-04-23 | A machine with fluid operated feed mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1204931A GB372538A (en) | 1931-04-23 | 1931-04-23 | A machine with fluid operated feed mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB372538A true GB372538A (en) | 1932-05-12 |
Family
ID=9997505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1204931A Expired GB372538A (en) | 1931-04-23 | 1931-04-23 | A machine with fluid operated feed mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB372538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2626451A (en) * | 1947-12-20 | 1953-01-27 | New Britain Machine Co | Stock feed mechanism |
-
1931
- 1931-04-23 GB GB1204931A patent/GB372538A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2626451A (en) * | 1947-12-20 | 1953-01-27 | New Britain Machine Co | Stock feed mechanism |
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