GB501911A - Improvements in variable speed drives in precision grinding machines - Google Patents

Improvements in variable speed drives in precision grinding machines

Info

Publication number
GB501911A
GB501911A GB3080338A GB3080338A GB501911A GB 501911 A GB501911 A GB 501911A GB 3080338 A GB3080338 A GB 3080338A GB 3080338 A GB3080338 A GB 3080338A GB 501911 A GB501911 A GB 501911A
Authority
GB
United Kingdom
Prior art keywords
motor
pawl
belt
precision grinding
variable speed
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
GB3080338A
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.)
Churchill Machine Tool Co Ltd
Original Assignee
Churchill Machine Tool Co Ltd
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 Churchill Machine Tool Co Ltd filed Critical Churchill Machine Tool Co Ltd
Priority to GB3080338A priority Critical patent/GB501911A/en
Publication of GB501911A publication Critical patent/GB501911A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

501,911. Motor - mountings. CHURCHILL MACHINE TOOL CO., Ltd., and ASBRIDGE, H. H. Oct. 25, 1938, No. 30803. [Class 35] [Also in Group XXIV] In order to permit a V-belt o, or rope, to be slackened sufficient to allow it to be transferred from one V-groove to another in stepped driving and driven pulleys g, e on a precision grinding machine, a driving electric motor a, carrying the pulley g, is mounted on a slide c, and is supported against the belt pull in the position of maximum tension by a pawl m, which can be lifted out of engagement with a fixed rack n when it is desired to slacken the belt for a shift. As shown, the pawl m is formed on a handle j, pivoted to the motor and being employed to slide the motor after raising the pawl. In a modification, the pawl is separate from the handle, which is linked to the motor.
GB3080338A 1938-10-25 1938-10-25 Improvements in variable speed drives in precision grinding machines Expired GB501911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3080338A GB501911A (en) 1938-10-25 1938-10-25 Improvements in variable speed drives in precision grinding machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3080338A GB501911A (en) 1938-10-25 1938-10-25 Improvements in variable speed drives in precision grinding machines

Publications (1)

Publication Number Publication Date
GB501911A true GB501911A (en) 1939-03-07

Family

ID=10313364

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3080338A Expired GB501911A (en) 1938-10-25 1938-10-25 Improvements in variable speed drives in precision grinding machines

Country Status (1)

Country Link
GB (1) GB501911A (en)

Similar Documents

Publication Publication Date Title
GB501911A (en) Improvements in variable speed drives in precision grinding machines
GB314295A (en) Improvements in means for driving the spindles of spinning machines and the like
GB601826A (en) Improvements in driving mechanism for endless flexible bands
US2152038A (en) Belt drive
GB426430A (en) Improvements in or relating to winding machines for cables, ropes and the like
GB178795A (en) A machine tool or other working machine with variable-speed gearing
GB907702A (en) Spinning and twisting machine spindle driving mechanism
GB385912A (en) Drive arrangement for twisting machines with spindles arranged on both sides
GB196129A (en) Improvements in or relating to the driving of spinning, doubling & like machines
GB592897A (en) Reversing or change speed gear for machine tools
US223119A (en) Improvement in belt gearing and shifting mechanism for
GB599508A (en) Belt drive reversing unit
GB408353A (en) Improvements in mounting electric motors and in driving gear therefor
GB194728A (en) Change speed arrangement for separately driven spinning, twisting and doubling machines
SU14739A1 (en) Multi-blade saw with a series of paired band saws
GB793138A (en) Motor-driven winch
GB540942A (en) Improvements in or relating to change speed transmission gear
GB621431A (en) Improvements in driving arrangement for sewing-machines having treadle mechanism, flywheel and endless driving belt
GB210576A (en) Improvements in metal planing and like machines
GB627179A (en) Improved reel drive mechanism
GB303925A (en) Wire drawing machines
GB335130A (en) New or improved braking means for power-driven sewing machines
GB626520A (en) Improvements in or relating to conveyor drives
GB545025A (en) Improvements in or relating to automatic screw and similar machines particularly driving mechanism for the work spindle thereof
GB695983A (en) Improvements in drive means for rag-tearing and like machines