GB372538A - A machine with fluid operated feed mechanism - Google Patents

A machine with fluid operated feed mechanism

Info

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
Application number
GB1204931A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1204931A priority Critical patent/GB372538A/en
Publication of GB372538A publication Critical patent/GB372538A/en
Expired legal-status Critical Current

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

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>.
GB1204931A 1931-04-23 1931-04-23 A machine with fluid operated feed mechanism Expired GB372538A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2626451A (en) * 1947-12-20 1953-01-27 New Britain Machine Co Stock feed mechanism

Cited By (1)

* Cited by examiner, † Cited by third party
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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