GB639354A - Improvements relating to driving certain cutting tools such as taps - Google Patents

Improvements relating to driving certain cutting tools such as taps

Info

Publication number
GB639354A
GB639354A GB744448A GB744448A GB639354A GB 639354 A GB639354 A GB 639354A GB 744448 A GB744448 A GB 744448A GB 744448 A GB744448 A GB 744448A GB 639354 A GB639354 A GB 639354A
Authority
GB
United Kingdom
Prior art keywords
magnet
magnetic
torque
spindle
secured
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
GB744448A
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 GB744448A priority Critical patent/GB639354A/en
Publication of GB639354A publication Critical patent/GB639354A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
    • H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
    • H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
    • H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/38—Chucks with overload clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

639,354. Yielding-drive tapping machines. NORBURY, E. March 11, 1948, No. 7444. [Class 83 (iii)] [Also in Group XXXV] A tapping or like machine has the direction of rotation of the cutting tool temporarily reversed when loaded to a predetermined extent and includes relatively rotatable magnet and armature elements coacting with one another for transmitting torque to the tool until the torque exceeds a predetermined value dependent upon the magnetic flux, whereupon slip will occur and the driven element will " kick lock " temporarily reversing the drive. The spindle 12 may be driven from an electric motor and is secured to two non-magnetic cheekmembers 27 enclosing and attached to a horse-shoe magnet element 20 with poles 21. The cheek members are secured at 26 to a cylindrical non-magnetic casing 25 within which an armature 22 is rotatable. The latter is keyed to the spindle 17 which drives the tap 14 through a pin-andslot connection 16. The magnet may be permanent or an electro-magnet and in each case the flux may be varied to give a torque of predetermined magnitude.
GB744448A 1948-03-11 1948-03-11 Improvements relating to driving certain cutting tools such as taps Expired GB639354A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB744448A GB639354A (en) 1948-03-11 1948-03-11 Improvements relating to driving certain cutting tools such as taps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB744448A GB639354A (en) 1948-03-11 1948-03-11 Improvements relating to driving certain cutting tools such as taps

Publications (1)

Publication Number Publication Date
GB639354A true GB639354A (en) 1950-06-28

Family

ID=9833216

Family Applications (1)

Application Number Title Priority Date Filing Date
GB744448A Expired GB639354A (en) 1948-03-11 1948-03-11 Improvements relating to driving certain cutting tools such as taps

Country Status (1)

Country Link
GB (1) GB639354A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001149A1 (en) * 1980-10-02 1982-04-15 Gibbs P Improved machine for diamond turning and polishing contact lenses and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1982001149A1 (en) * 1980-10-02 1982-04-15 Gibbs P Improved machine for diamond turning and polishing contact lenses and the like

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