GB944423A - Improvements in or relating to variable speed gear controls - Google Patents

Improvements in or relating to variable speed gear controls

Info

Publication number
GB944423A
GB944423A GB418260A GB418260A GB944423A GB 944423 A GB944423 A GB 944423A GB 418260 A GB418260 A GB 418260A GB 418260 A GB418260 A GB 418260A GB 944423 A GB944423 A GB 944423A
Authority
GB
United Kingdom
Prior art keywords
arm
button
switch
ratio
servo
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
GB418260A
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.)
Gebr Sucker GmbH
Original Assignee
Gebr Sucker GmbH
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
Priority claimed from DES61683A external-priority patent/DE1274256B/en
Application filed by Gebr Sucker GmbH filed Critical Gebr Sucker GmbH
Publication of GB944423A publication Critical patent/GB944423A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H61/00Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/66Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
    • F16H61/664Friction gearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

944,423. Variable speed control. GEB. SUCKER G.m.b.H. Feb. 5, 1960 [Feb. 7, 1959], No. 4182/60. Heading F2D. A push button control for a steplessly variabla speed gear 2 driving e.g. a constant-tension textile winding machine, has means for reducing the gear ratio from a predetermined ratio to a creeper ratio and subsequently restoring the predetermined ratio, which comprise an arm 15 rotatable about a spindle 107 and geared to a selector shaft 111 so that when the creeper speed button is depressed a servomotor 27 is started which reduces the gear ratio, through the shaft 111, and drives the arm 15 in a clockwise direction until a spring 15a thereon trips a switch 110a to stop the servo 27 at the creeper speed; subsequent depression of the normal gear button restarts the servo 27 in the opposite direction to raise the gear ratio until the arm 15 trips a switch 109a to stop the servo at the previous gear ratio. The switch 109a is carried by an arm 109 rotatable about the spindle 107 to change the gear ratio. The arm 109 is biased in a clockwise direction by a torsion spring 108 and retained in position by a spring pressed pawl 21 and ratchet 17. For upshift, depression of a " faster " push button starts the servo 27 and rotates the arm 15, whilst the button is held depressed, in an anticlockwise direction a stop 15b of which arm 15 abuts the arm 109 and rotates the latter, the push-button bridging the switch 109a. For downshift, depression of a " slower " push-button rotates the arm 15 in a clockwise direction and energizes an electromagnet 20 which raises the pawl 21 to permit the spring 108 to rotate the arm 109 clockwise. The switch 110a, as shown, is carried by a fixed member 110, but may be mounted on a rotatable arm similar to 109, whereby the creeper speed ratio may be changed.
GB418260A 1959-02-07 1960-02-05 Improvements in or relating to variable speed gear controls Expired GB944423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES61683A DE1274256B (en) 1958-02-08 1959-02-07 Switchable permanent magnet device

Publications (1)

Publication Number Publication Date
GB944423A true GB944423A (en) 1963-12-11

Family

ID=7495048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB418260A Expired GB944423A (en) 1959-02-07 1960-02-05 Improvements in or relating to variable speed gear controls

Country Status (1)

Country Link
GB (1) GB944423A (en)

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