GB1066661A - Improvements in or relating to audio-actuated protective devices - Google Patents

Improvements in or relating to audio-actuated protective devices

Info

Publication number
GB1066661A
GB1066661A GB1171064A GB1171064A GB1066661A GB 1066661 A GB1066661 A GB 1066661A GB 1171064 A GB1171064 A GB 1171064A GB 1171064 A GB1171064 A GB 1171064A GB 1066661 A GB1066661 A GB 1066661A
Authority
GB
United Kingdom
Prior art keywords
audio
relating
protective devices
actuated protective
actuated
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
GB1171064A
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.)
EDWARD JOSEPH HUXLEY
Original Assignee
EDWARD JOSEPH HUXLEY
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 EDWARD JOSEPH HUXLEY filed Critical EDWARD JOSEPH HUXLEY
Priority to GB1171064A priority Critical patent/GB1066661A/en
Publication of GB1066661A publication Critical patent/GB1066661A/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
    • F16P3/12—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 with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
    • F16P3/14—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 with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine the means being photocells or other devices sensitive without mechanical contact

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

1,066,661. Machinery guards. E. J. HUXLEY. May 25, 1965 [March 19, 1964], No. 11710/64. Heading F2J. Human vociferations are picked up by a microphone and fed via a filter and amplifier to control a blocking oscillator, the output from which operates a relay to stop a machine in an emergency. The system may be adjusted to respond only to noise above a predetermined threshold.
GB1171064A 1964-03-19 1964-03-19 Improvements in or relating to audio-actuated protective devices Expired GB1066661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1171064A GB1066661A (en) 1964-03-19 1964-03-19 Improvements in or relating to audio-actuated protective devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1171064A GB1066661A (en) 1964-03-19 1964-03-19 Improvements in or relating to audio-actuated protective devices

Publications (1)

Publication Number Publication Date
GB1066661A true GB1066661A (en) 1967-04-26

Family

ID=9991262

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1171064A Expired GB1066661A (en) 1964-03-19 1964-03-19 Improvements in or relating to audio-actuated protective devices

Country Status (1)

Country Link
GB (1) GB1066661A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809067A (en) * 1972-06-07 1974-05-07 Borg Warner Modulation responsive anti-evasion system for breath testers
FR2443190A1 (en) * 1978-12-08 1980-07-04 Skf Ind Trading & Dev AGRICULTURAL MACHINE PROVIDED WITH A SECURITY DEVICE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3809067A (en) * 1972-06-07 1974-05-07 Borg Warner Modulation responsive anti-evasion system for breath testers
FR2443190A1 (en) * 1978-12-08 1980-07-04 Skf Ind Trading & Dev AGRICULTURAL MACHINE PROVIDED WITH A SECURITY DEVICE

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