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GB786101A - Improvements in or relating to locking devices controlled by shock - Google Patents

Improvements in or relating to locking devices controlled by shock

Info

Publication number
GB786101A
GB786101A GB1827255A GB1827255A GB786101A GB 786101 A GB786101 A GB 786101A GB 1827255 A GB1827255 A GB 1827255A GB 1827255 A GB1827255 A GB 1827255A GB 786101 A GB786101 A GB 786101A
Authority
GB
United Kingdom
Prior art keywords
shock
locking
springs
rods
clips
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
GB1827255A
Inventor
Douglas Louis Ashton Driver
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB1827255A priority Critical patent/GB786101A/en
Priority to GB2100256A priority patent/GB809472A/en
Publication of GB786101A publication Critical patent/GB786101A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G5/00—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member
    • G05G5/06—Means for preventing, limiting or returning the movements of parts of a control mechanism, e.g. locking controlling member for holding members in one or a limited number of definite positions only
    • G05G5/08—Interlocking of members, e.g. locking member in a particular position before or during the movement of another member

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)

Abstract

786,101. Locking devices. STANDARD TELEPHONES & CABLES, Ltd. June 24, 1955, No. 18272/55. Class 80 (3). [Also in Group XXXIX] A locking device for preventing movement of one member relative to another due to shock whilst normally allowing relative movement is particularly applicable to a telephone handpiece 15 supported in two spring-loaded clips 12 on a framework 4. The clips 12 are loaded by springs 11 acting through rods 9 which have enlarged collars 8 thereon. These collars 8 are adapted to move into bores 6 of locking members 1 to allow the clips 12 to move into the dotted positions for removal of the handpiece when desired. The locking members 1 are suspended by a number of springs 2 to the frame 4 as shown at the top of the Figure or by a coiled spring 22 tapered towards its middle as shown at the bottom of the Figure. In the event of a shock the members 1 are displaced transversely to the rods 9 to move the bores 6 out of alignment with the collars 8 and thus prevent the rods from moving against the springs 11. The two separate devices are arranged at 90 degrees to respond to shocks in any direction. A single device only may be provided when locking of a member by shock in one plane only is desired. Various different arrangements of two devices are also described.
GB1827255A 1955-06-24 1955-06-24 Improvements in or relating to locking devices controlled by shock Expired GB786101A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1827255A GB786101A (en) 1955-06-24 1955-06-24 Improvements in or relating to locking devices controlled by shock
GB2100256A GB809472A (en) 1955-06-24 1956-07-06 Improvements in or relating to locking devices controlled by shock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1827255A GB786101A (en) 1955-06-24 1955-06-24 Improvements in or relating to locking devices controlled by shock

Publications (1)

Publication Number Publication Date
GB786101A true GB786101A (en) 1957-11-13

Family

ID=10109601

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1827255A Expired GB786101A (en) 1955-06-24 1955-06-24 Improvements in or relating to locking devices controlled by shock
GB2100256A Expired GB809472A (en) 1955-06-24 1956-07-06 Improvements in or relating to locking devices controlled by shock

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2100256A Expired GB809472A (en) 1955-06-24 1956-07-06 Improvements in or relating to locking devices controlled by shock

Country Status (1)

Country Link
GB (2) GB786101A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0632968B2 (en) * 1985-03-26 1994-05-02 セイコーエプソン株式会社 Printhead attachment mechanism

Also Published As

Publication number Publication date
GB809472A (en) 1959-02-25

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