GB128120A - Improvement in Screw-cutting Apparatus. - Google Patents

Improvement in Screw-cutting Apparatus.

Info

Publication number
GB128120A
GB128120A GB1921118A GB1921118A GB128120A GB 128120 A GB128120 A GB 128120A GB 1921118 A GB1921118 A GB 1921118A GB 1921118 A GB1921118 A GB 1921118A GB 128120 A GB128120 A GB 128120A
Authority
GB
United Kingdom
Prior art keywords
screw
lathe
rack bar
pivot
lever
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
GB1921118A
Inventor
John Alexander Romer
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 GB1921118A priority Critical patent/GB128120A/en
Publication of GB128120A publication Critical patent/GB128120A/en
Expired legal-status Critical Current

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
    • B23Q35/00—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually
    • B23Q35/04—Control systems or devices for copying directly from a pattern or a master model; Devices for use in copying manually using a feeler or the like travelling along the outline of the pattern, model or drawing; Feelers, patterns, or models therefor
    • B23Q35/08—Means for transforming movement of the feeler or the like into feed movement of tool or work
    • B23Q35/20—Means for transforming movement of the feeler or the like into feed movement of tool or work with special means for varying the ratio of reproduction
    • 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
    • B23G1/02—Thread cutting; Automatic machines specially designed therefor on an external or internal cylindrical or conical surface, e.g. on recesses

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Transmission Devices (AREA)

Abstract

128,120. Romer, J. A. Nov. 22, 1918. No Patent granted (Sealing fee not paid). Lathes.-An attachment for a lathe is constructed so that the pitch of a screw being cut in the lathe can be varied by a simple adjustment. A rack bar E is reciprocated through worm gearing from the lathe mandrel, and has pivoted to it one end H of a lever F, the other end of which slides in a pivot G adjustable towards and from the rack bar by a screw in the frame T. The bar I, which is adapted to hook on the tool carriage, is attached to the lever F by a pin-and-slot mechanism, so that the tool carriage has a definite proportion of the motion of the rack bar varied by adjusting the position of the pivot G. Specifications 221/02 and 20103/10 are referred to.
GB1921118A 1918-11-22 1918-11-22 Improvement in Screw-cutting Apparatus. Expired GB128120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1921118A GB128120A (en) 1918-11-22 1918-11-22 Improvement in Screw-cutting Apparatus.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1921118A GB128120A (en) 1918-11-22 1918-11-22 Improvement in Screw-cutting Apparatus.

Publications (1)

Publication Number Publication Date
GB128120A true GB128120A (en) 1919-06-19

Family

ID=32348277

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1921118A Expired GB128120A (en) 1918-11-22 1918-11-22 Improvement in Screw-cutting Apparatus.

Country Status (1)

Country Link
GB (1) GB128120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086359A2 (en) * 1982-02-11 1983-08-24 Friedrichsfeld GmbH Keramik- und Kunststoffwerke Device for embedding an electrical heating wire in a socket-like plastic object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086359A2 (en) * 1982-02-11 1983-08-24 Friedrichsfeld GmbH Keramik- und Kunststoffwerke Device for embedding an electrical heating wire in a socket-like plastic object
EP0086359B1 (en) * 1982-02-11 1987-11-19 Friedrichsfeld GmbH Keramik- und Kunststoffwerke Device for embedding an electrical heating wire in a socket-like plastic object

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