GB635672A - Improvements in or relating to inertia or impact operated devices - Google Patents

Improvements in or relating to inertia or impact operated devices

Info

Publication number
GB635672A
GB635672A GB687648A GB687648A GB635672A GB 635672 A GB635672 A GB 635672A GB 687648 A GB687648 A GB 687648A GB 687648 A GB687648 A GB 687648A GB 635672 A GB635672 A GB 635672A
Authority
GB
United Kingdom
Prior art keywords
slug
springs
craft
fixture
spring
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
GB687648A
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.)
WILKINSON SWORD CO Ltd
Graviner Manufacturing Co Ltd
Original Assignee
WILKINSON SWORD CO Ltd
Graviner Manufacturing 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
Priority to NL74421D priority Critical patent/NL74421C/xx
Priority to NL63302162A priority patent/NL145206B/en
Application filed by WILKINSON SWORD CO Ltd, Graviner Manufacturing Co Ltd filed Critical WILKINSON SWORD CO Ltd
Priority to GB687648A priority patent/GB635672A/en
Publication of GB635672A publication Critical patent/GB635672A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G15/00—Mechanical devices for initiating a movement automatically due to a specific cause

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Adjustable Resistors (AREA)

Abstract

635,672. Inertia switches. WILKINSON SWORD CO., Ltd., GRAVINER MANUFACTURING CO., Ltd., HANSARD, D. A., and BENNETT, N. G. March 5, 1948, Nos. 6876 and 19275. [Class 38 (v)] An impact-operated device for controlling switches, automatic fire preventing appliances &c. in craft and vehicles, comprises a slug 8 slidable in a tube 9 mounted in a fixture 10. A bow-spring 18 resting on the slug is supported at its ends by leaf - springs 13 secured to opposite sides of the fixture 10. Should the craft be decelerated above a predetermined amount, slug 8 overcomes spring 18 which snaps over and bridges contacts in the circuit controlled and mounted on a terminal block 20 forming a closure for a container 19 surrounding fixture 10. A spring-urged resetting knob 29 is mounted in the block 20. The free length of the springs 13 is adjustable to vary the setting at which the switch will operate. The slug is hollowed out at one end and provided with a secondary slug 31 having limited sliding movement whereby vibrations tending to cause inadvertent operation are damped out. According to the first Provisional Specification, the leaf-springs may be adjusted by a cam, and container 19 may be pressurized or filled with damping fluid. The slug may also be locked in the inoperative position by mechanical or electrical means during the firing of guns on military craft.
GB687648A 1948-03-05 1948-03-05 Improvements in or relating to inertia or impact operated devices Expired GB635672A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL74421D NL74421C (en) 1948-03-05
NL63302162A NL145206B (en) 1948-03-05 PROCEDURE FOR MANUFACTURE OF A GLASS PLATE WITH REDUCED REFLECTION, AS WELL AS GLASS PLATE OBTAINED.
GB687648A GB635672A (en) 1948-03-05 1948-03-05 Improvements in or relating to inertia or impact operated devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB687648A GB635672A (en) 1948-03-05 1948-03-05 Improvements in or relating to inertia or impact operated devices

Publications (1)

Publication Number Publication Date
GB635672A true GB635672A (en) 1950-04-12

Family

ID=9822398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB687648A Expired GB635672A (en) 1948-03-05 1948-03-05 Improvements in or relating to inertia or impact operated devices

Country Status (2)

Country Link
GB (1) GB635672A (en)
NL (2) NL74421C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885505A (en) * 1953-09-23 1959-05-05 Graviner Manufacturing Co Inertia operated devices
US3509299A (en) * 1968-11-25 1970-04-28 Garrett Corp Acceleration sensor switch
EP0196662A2 (en) * 1985-04-04 1986-10-08 Milton F. Brown, Jr. Impact sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2885505A (en) * 1953-09-23 1959-05-05 Graviner Manufacturing Co Inertia operated devices
US3509299A (en) * 1968-11-25 1970-04-28 Garrett Corp Acceleration sensor switch
EP0196662A2 (en) * 1985-04-04 1986-10-08 Milton F. Brown, Jr. Impact sensor
EP0196662A3 (en) * 1985-04-04 1987-08-19 Milton F. Brown, Jr. Impact sensor

Also Published As

Publication number Publication date
NL74421C (en)
NL145206B (en)

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