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GB242300A - Improvements relating to method and means for cutting screw threads - Google Patents

Improvements relating to method and means for cutting screw threads

Info

Publication number
GB242300A
GB242300A GB27209/25A GB2720925A GB242300A GB 242300 A GB242300 A GB 242300A GB 27209/25 A GB27209/25 A GB 27209/25A GB 2720925 A GB2720925 A GB 2720925A GB 242300 A GB242300 A GB 242300A
Authority
GB
United Kingdom
Prior art keywords
tool
plate
blank
conical
abutment
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
GB27209/25A
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
Publication of GB242300A publication Critical patent/GB242300A/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
    • B23G1/22—Machines specially designed for operating on pipes or tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

242,300. Gottmanns, K. Oct. 30, 1924, [Convention date]. Turning.-A double-conical blank h is threaded in a lathe in a single continuous operation by a tool adjustably mounted in a slide b on the lathe bed a which also carries a rotatable circular plate e having an arm i which extends below the toolslide and is provided with a stop k. coacting with adjustable abutments m, n on the lathe bed. The blank is carried in a chuck g rotated by mechanism (not shown) and adjustable in a guide f on the plate e. In operation, the work is first adjusted so that a generator of one of the conical surfaces is parallel to the line of cut, and the point d on the generator between the two conical surfaces lies in the axis of rotation of the plate e. The longitudinal tool feed is then engaged and when the tool reaches the point d the abutment k is automatically disengaged from the abutment m and the plate e is turned until the abutments n come into engagement. The blank is thus brought to the position shown in dotted lines and on further forward feed of the tool, the second conical surface is correctly threaded. In a modification, the tool carrier may be provided with a revolving head. The invention is also applicable to threading blanks having doubleconical exterior surfaces.
GB27209/25A 1924-10-30 1924-10-29 Improvements relating to method and means for cutting screw threads Expired GB242300A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE242300X 1924-10-30

Publications (1)

Publication Number Publication Date
GB242300A true GB242300A (en) 1926-04-08

Family

ID=5915340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27209/25A Expired GB242300A (en) 1924-10-30 1924-10-29 Improvements relating to method and means for cutting screw threads

Country Status (1)

Country Link
GB (1) GB242300A (en)

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