GB1066662A - Improvements in or relating to controllers for machines - Google Patents

Improvements in or relating to controllers for machines

Info

Publication number
GB1066662A
GB1066662A GB1184364A GB1184364A GB1066662A GB 1066662 A GB1066662 A GB 1066662A GB 1184364 A GB1184364 A GB 1184364A GB 1184364 A GB1184364 A GB 1184364A GB 1066662 A GB1066662 A GB 1066662A
Authority
GB
United Kingdom
Prior art keywords
switches
relay
switch
starting
energized
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
GB1184364A
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.)
FRANK PILKINGTON MCKELLEN
Original Assignee
FRANK PILKINGTON MCKELLEN
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 FRANK PILKINGTON MCKELLEN filed Critical FRANK PILKINGTON MCKELLEN
Priority to GB1184364A priority Critical patent/GB1066662A/en
Publication of GB1066662A publication Critical patent/GB1066662A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/18—Control arrangements requiring the use of both hands
    • F16P3/20—Control arrangements requiring the use of both hands for electric control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Water Turbines (AREA)

Abstract

1,066,662. Machinery safety devices. F. P. McKELLEN. April 8, 1965 [March 20, 1964], No. 11843/64. Heading F2J. [Also in Division H2] A two-handed safety operating device for a machine, comprises two separate starting switches 10, 11 closure of which closes for a predetermined interval switches RL12A, RL13A in series with a starting relay RL14 which is thus only energized when both switches 10, 11 are closed simultaneously, or substantially so. Closure of switches 10, 11 respectively energizes relays RL10, RL11 to change over switches RL10A; RL10B; RL11A; RL11B. Change over of switches RL10A, RL11A permits condensers C10, C11 to discharge through and energize for a predetermined interval relays RL12, RL13 which close switches RL12A, RL13A. When both switches 10, 11 are closed simultaneously to energize the starting relay RL14, the latter closes a holding switch RL14A in series with the switches RL10B; RL11B so that the relay RL14 remains energized whilst both switches 10, 11 are closed. The relay RL14 is de-energized when either switch 10 or 11 is opened and remains so until the other switch is opened and both switches are reclosed simultaneously. The relay RL14 may, as shown, operate a switch RL14B in the circuit of a driving electric motor or may control an hydraulic or pneumatic valve or a clutch which effects starting a machine.
GB1184364A 1964-03-20 1964-03-20 Improvements in or relating to controllers for machines Expired GB1066662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1184364A GB1066662A (en) 1964-03-20 1964-03-20 Improvements in or relating to controllers for machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1184364A GB1066662A (en) 1964-03-20 1964-03-20 Improvements in or relating to controllers for machines

Publications (1)

Publication Number Publication Date
GB1066662A true GB1066662A (en) 1967-04-26

Family

ID=9993709

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1184364A Expired GB1066662A (en) 1964-03-20 1964-03-20 Improvements in or relating to controllers for machines

Country Status (1)

Country Link
GB (1) GB1066662A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028196A1 (en) * 1980-07-25 1982-02-11 Pilz Apparatebau Gmbh & Co, 7302 Ostfildern Manual safety control for power press - has two pushbuttons which turn on two transistors simultaneously to supply power to press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028196A1 (en) * 1980-07-25 1982-02-11 Pilz Apparatebau Gmbh & Co, 7302 Ostfildern Manual safety control for power press - has two pushbuttons which turn on two transistors simultaneously to supply power to press

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