GB677113A - Improvements in or relating to devices for cutting screw threads - Google Patents

Improvements in or relating to devices for cutting screw threads

Info

Publication number
GB677113A
GB677113A GB23171/50A GB2317150A GB677113A GB 677113 A GB677113 A GB 677113A GB 23171/50 A GB23171/50 A GB 23171/50A GB 2317150 A GB2317150 A GB 2317150A GB 677113 A GB677113 A GB 677113A
Authority
GB
United Kingdom
Prior art keywords
tap
die
screw
faces
sept
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
GB23171/50A
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 GB677113A publication Critical patent/GB677113A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00Thread-cutting tools; Die-heads
    • B23G5/02Thread-cutting tools; Die-heads without means for adjustment
    • B23G5/06Taps
    • B23G5/062Taps with a guiding means part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23GTHREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
    • B23G5/00Thread-cutting tools; Die-heads
    • B23G5/08Thread-cutting tools; Die-heads with means for adjustment
    • B23G5/083Adjustable dies
    • B23G5/086Adjustable dies with guiding means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

677,113. Screw-cutting dies and taps. KUMMEL, R. Sept. 21, 1950 [Sept. 21, 1949; Oct. 28, 1949; June 1, 1950], No. 23171/50. Class 83 (iii). A die, tap or chaser, for a length approximately equal to the diameter, has a straight or curved conical portion on which the threads 11 are of the same depth as the full-cutting threads 40 and act as axial guides; additional guide faces, 7<SP>1</SP>, Fig. 4, and 16, Fig. 7, are also provided and may be adjustable to accommodate small variations in the diameter of the work. The adjustment of the guiding faces is by slotting the tool longitudinally or helically in the region of the faces and, in the case of a die, providing a screwed cap 19, Fig. 7, with a cone surface 20, or a taper-threaded cap, and, in the case of a tap, providing a slidable or screwed mandrel extending through the tap. A slotted die is also described, having adjusting screws 22, Fig. 10, and and a regulating screw 23 covered by a plate 24 which rests resiliently on the screw 23 and has flanges 26 gripping the adjusting screws. The The tool body may be made as a separate part with steel blades pressed into it or it may be cast round dove-tails on the roots of the blades.
GB23171/50A 1949-09-21 1950-09-21 Improvements in or relating to devices for cutting screw threads Expired GB677113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH677113X 1949-09-21

Publications (1)

Publication Number Publication Date
GB677113A true GB677113A (en) 1952-08-06

Family

ID=4528198

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23171/50A Expired GB677113A (en) 1949-09-21 1950-09-21 Improvements in or relating to devices for cutting screw threads

Country Status (3)

Country Link
BE (1) BE498227A (en)
GB (1) GB677113A (en)
LU (1) LU30339A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004076109A1 (en) * 2003-02-27 2004-09-10 Vilmanyi Laszlo Indexable threading tap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004076109A1 (en) * 2003-02-27 2004-09-10 Vilmanyi Laszlo Indexable threading tap

Also Published As

Publication number Publication date
LU30339A1 (en)
BE498227A (en)

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