GB200615A - Improvements in and relating to tapping or screw-threading machines - Google Patents

Improvements in and relating to tapping or screw-threading machines

Info

Publication number
GB200615A
GB200615A GB1187722A GB1187722A GB200615A GB 200615 A GB200615 A GB 200615A GB 1187722 A GB1187722 A GB 1187722A GB 1187722 A GB1187722 A GB 1187722A GB 200615 A GB200615 A GB 200615A
Authority
GB
United Kingdom
Prior art keywords
spindle
tapping
adjustable
machine
screwing
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
GB1187722A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB1187722A priority Critical patent/GB200615A/en
Publication of GB200615A publication Critical patent/GB200615A/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
    • B23G1/16—Thread cutting; Automatic machines specially designed therefor in holes of workpieces by taps
    • B23G1/18—Machines with one working spindle
    • B23G1/185—Machines with one working spindle specially adapted for making nuts

Landscapes

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

Abstract

200,615. British Thomson-Houston Co., Ltd., (General Electric Co.). April 27, 1922. Screwing and tapping.-In a screwing or tapping machine the tool-spindle is yieldingly fed bv means of the end thrust provided by helical gears. As applied to a machine for tapping nuts, the spindle 25 is rotated and fed by a helical gearwheel 23 engaging a mating wheel 24 on the spindle, and driven by means of a pinion 21 and toothed sector 19 oscillated through a link having an adjustable throw. The link is connected to a crank-pin on a worm-wheel driven from a continuously rotating belt-pulley. An adjustable brake is provided for retarding the rotation of the spindle and producing the feed when the tap is not cutting, and consists of a U-shaped member 28 loosely mounted on the spindle and gripped between discs 29, of leather or like material, by means of a nut 31 and rings 30 slidably keyed to the spindle, rotation of the member 28 being prevented by a rod 32. The nuts fall by gravity down a hopper 33, and when a nut has been tapped it falls through a slot 45 in an adjustable spring member 36 which is reciprocated by means of a roller, a face cam on the sector, rod 41 and spring 42. The hopper is adjustably mounted on two rods 34 secured to the machine frame at each side of the spindle and parallel therewith.
GB1187722A 1922-04-27 1922-04-27 Improvements in and relating to tapping or screw-threading machines Expired GB200615A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1187722A GB200615A (en) 1922-04-27 1922-04-27 Improvements in and relating to tapping or screw-threading machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1187722A GB200615A (en) 1922-04-27 1922-04-27 Improvements in and relating to tapping or screw-threading machines

Publications (1)

Publication Number Publication Date
GB200615A true GB200615A (en) 1923-07-19

Family

ID=9994297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1187722A Expired GB200615A (en) 1922-04-27 1922-04-27 Improvements in and relating to tapping or screw-threading machines

Country Status (1)

Country Link
GB (1) GB200615A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338202A1 (en) * 1983-10-20 1985-05-02 VTU "A. Kančev", Russe Automatic for forming the thread on nuts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3338202A1 (en) * 1983-10-20 1985-05-02 VTU "A. Kančev", Russe Automatic for forming the thread on nuts

Similar Documents

Publication Publication Date Title
US2165118A (en) Cutting-off machine
GB200615A (en) Improvements in and relating to tapping or screw-threading machines
US1912216A (en) Method and apparatus for lapping gears
US2981038A (en) Method of grinding helical forms
US1958105A (en) Thread grinding machine
US1317383A (en) Chusetts
US1779823A (en) Automatic cylindrical grinding machine
US1555530A (en) Machine for generating bevel gears
US1798832A (en) Worm and tap grinder
US2134234A (en) Indexing mechanism
US1277801A (en) Screwing-machine.
GB935199A (en) Multiple spindle tapper
GB666424A (en) Improvements in and relating to gear grinding machines
US1288576A (en) Wire coiling and cutting machine.
US1355780A (en) Machine for backing off the teeth of hobs for cutting screw-threads
US1745573A (en) Vertical shaping machine
US1806707A (en) Machine tool fob tapping nut-blanks
US1676643A (en) Grinding machine
US1580442A (en) Control mechanism for grinding apparatus
US1283693A (en) Machine for cutting gears.
US1693361A (en) Machine for cutting off stock
US1979870A (en) Method of and machine for grinding gears
US1455444A (en) Toric-lap former
US3688962A (en) Feeding device for cold pilger mills
US1446654A (en) Bur-grinding machine