GB630833A - Improvements relating to means for feeding work or stock bars to lathes and like machine tools - Google Patents

Improvements relating to means for feeding work or stock bars to lathes and like machine tools

Info

Publication number
GB630833A
GB630833A GB3266747A GB3266747A GB630833A GB 630833 A GB630833 A GB 630833A GB 3266747 A GB3266747 A GB 3266747A GB 3266747 A GB3266747 A GB 3266747A GB 630833 A GB630833 A GB 630833A
Authority
GB
United Kingdom
Prior art keywords
spring
catch
holder
rod
bar
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
GB3266747A
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.)
GEORGE CONWAY HOOSON
H W WARD AND Co Ltd
Original Assignee
GEORGE CONWAY HOOSON
H W WARD AND Co Ltd
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 GEORGE CONWAY HOOSON, H W WARD AND Co Ltd filed Critical GEORGE CONWAY HOOSON
Priority to GB3266747A priority Critical patent/GB630833A/en
Publication of GB630833A publication Critical patent/GB630833A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23BTURNING; BORING
    • B23B13/00Arrangements for automatically conveying or chucking or guiding stock

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Abstract

630,833. Lathe details. WARD & CO., Ltd., H. W., and HOOSON, G. C. Dec. 11, 1947, No. 32667. [Class 83 (iii)] Bar-feed mechanism for a lathe comprises a reciprocable holder a actuated by spring means i in the forward direction, a catch m for retaining the holder against the action of the spring i, and reciprocable means q, which is operable in one direction to retract the holder against the spring until retained by the catch and operable in the other direction to release the catch and allow the spring to advance the holder. As applied to a hollow-spindle lathe, the tubular holder a, Fig. 3, has a split collet a<SP>1</SP> for frictionally gripping the stock and is rotatablymounted in a bearing located in an arm c secured to a movable feed-rod d. A bridgemember g, which is attached by the spring i to a casing e, is secured to the rod d and is slidable on a stationary guide-rod f ; a projection k on the member g co-operates with the catch m which is controlled by a spring n. The rod d has slidably mounted thereon a rack-sleeve p co-operating with a pinion s, and a second pinion r, interconnected and coaxial with the pinion s, co-operates with the reciprocating bar-rack q which is actuated by a hand lever associated with the operating mechanism of the lathe chuck. When the hand lever is actuated to close the chuck on the bar, the rack q rotates the pinions r, s, to displace the rod d until it is retained by the catch m, the collet a<SP>1</SP> being drawn along the stock. The bar q, when moved in the opposite direction to open the chuck, releases the catch m and allows the holder a to feed the stock under the influence of the spring i. In the modification shown in Fig. 4, the racks and pinions are replaced by drums r, s and tapes u, x. The Provisional Specification describes also the bar q as being attached to the hand lever which has free movement in addition to that required for operating the chuck.
GB3266747A 1947-12-11 1947-12-11 Improvements relating to means for feeding work or stock bars to lathes and like machine tools Expired GB630833A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3266747A GB630833A (en) 1947-12-11 1947-12-11 Improvements relating to means for feeding work or stock bars to lathes and like machine tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3266747A GB630833A (en) 1947-12-11 1947-12-11 Improvements relating to means for feeding work or stock bars to lathes and like machine tools

Publications (1)

Publication Number Publication Date
GB630833A true GB630833A (en) 1949-10-21

Family

ID=10342198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3266747A Expired GB630833A (en) 1947-12-11 1947-12-11 Improvements relating to means for feeding work or stock bars to lathes and like machine tools

Country Status (1)

Country Link
GB (1) GB630833A (en)

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