GB526314A - Improvements in and relating to servo or follow up devices - Google Patents

Improvements in and relating to servo or follow up devices

Info

Publication number
GB526314A
GB526314A GB802539A GB802539A GB526314A GB 526314 A GB526314 A GB 526314A GB 802539 A GB802539 A GB 802539A GB 802539 A GB802539 A GB 802539A GB 526314 A GB526314 A GB 526314A
Authority
GB
United Kingdom
Prior art keywords
shaft
arm
drums
springs
follow
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
GB802539A
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.)
WILLIAM JOHN POOL
British Thomson Houston Co Ltd
Original Assignee
WILLIAM JOHN POOL
British Thomson Houston 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 WILLIAM JOHN POOL, British Thomson Houston Co Ltd filed Critical WILLIAM JOHN POOL
Priority to GB802539A priority Critical patent/GB526314A/en
Publication of GB526314A publication Critical patent/GB526314A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G19/00—Servo-mechanisms with follow-up action, e.g. occurring in steps

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Operated Clutches (AREA)

Abstract

526,314. Friction clutches; follow-up devices. BRITISH THOMSON-HOUSTON CO., Ltd., and POOL, W. J. March 13, 1939, No. 8025. [Class 80 (ii)] [Also in Group XXXVIII] A follow-up device for controlling the position of apparatus in accordance with the position of a control shaft 1 comprises a hollow shaft 2 loosely journalled on the shaft 1, and a pair of drums 3, 4 loosely mounted on the hollow shaft 2 and driven by power means in opposite directions. Helical springs 7, 8, oppositely wound on the two drums, each has its trailing end secured to an arm 11 on the shaft 2 and its leading end abutting freely against an arm 14 on the shaft 1. The springs are normally held just clear of the drums by the arm 14. On turning the shaft 1 and arm 14 in either direction, one of the springs is allowed to contract on its drum and transmit rotation to the arm 11 and shaft 2 until the free end of the spring overtakes the arm 14, when the spring is released and the drive ceases. A stop 15 limits the relative movement of the shafts 1, 2 and transmits rotation directly if the control shaft is moved faster than the normal speed of the drums or if the power supply fails. The springs 7, 8 may engage the drums 3, 4 externally or internally.
GB802539A 1939-03-13 1939-03-13 Improvements in and relating to servo or follow up devices Expired GB526314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB802539A GB526314A (en) 1939-03-13 1939-03-13 Improvements in and relating to servo or follow up devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB802539A GB526314A (en) 1939-03-13 1939-03-13 Improvements in and relating to servo or follow up devices

Publications (1)

Publication Number Publication Date
GB526314A true GB526314A (en) 1940-09-16

Family

ID=9844336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB802539A Expired GB526314A (en) 1939-03-13 1939-03-13 Improvements in and relating to servo or follow up devices

Country Status (1)

Country Link
GB (1) GB526314A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2569585A (en) * 1949-05-07 1951-10-02 Seneca Falls Machine Co Power actuator with pilot control
US2569586A (en) * 1949-09-08 1951-10-02 Seneca Falls Machine Co Driving mechanism with pilot control
US2585507A (en) * 1949-06-23 1952-02-12 Seneca Falls Machine Co Power actuator with pilot control
US2939329A (en) * 1959-09-24 1960-06-07 Curtiss Wright Corp Power transmitting device with spring clutch actuation
US2975648A (en) * 1959-09-28 1961-03-21 Curtiss Wright Corp Electrically controllable spring clutch and brake for power transmitting device
US3097533A (en) * 1963-07-16 heinzmann
US3214988A (en) * 1962-12-07 1965-11-02 Philip K Bodge Mechanical power amplifiers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097533A (en) * 1963-07-16 heinzmann
US2569585A (en) * 1949-05-07 1951-10-02 Seneca Falls Machine Co Power actuator with pilot control
US2585507A (en) * 1949-06-23 1952-02-12 Seneca Falls Machine Co Power actuator with pilot control
US2569586A (en) * 1949-09-08 1951-10-02 Seneca Falls Machine Co Driving mechanism with pilot control
US2939329A (en) * 1959-09-24 1960-06-07 Curtiss Wright Corp Power transmitting device with spring clutch actuation
US2975648A (en) * 1959-09-28 1961-03-21 Curtiss Wright Corp Electrically controllable spring clutch and brake for power transmitting device
US3214988A (en) * 1962-12-07 1965-11-02 Philip K Bodge Mechanical power amplifiers

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