GB137018A - Improvements in or relating to Selecting Devices for Automatic Telephone Systems. - Google Patents

Improvements in or relating to Selecting Devices for Automatic Telephone Systems.

Info

Publication number
GB137018A
GB137018A GB1764119A GB1764119A GB137018A GB 137018 A GB137018 A GB 137018A GB 1764119 A GB1764119 A GB 1764119A GB 1764119 A GB1764119 A GB 1764119A GB 137018 A GB137018 A GB 137018A
Authority
GB
United Kingdom
Prior art keywords
armature
relating
telephone systems
automatic telephone
pawl
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
GB1764119A
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.)
Siemens Brothers and Co Ltd
Original Assignee
Siemens Brothers and 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 Siemens Brothers and Co Ltd filed Critical Siemens Brothers and Co Ltd
Priority to GB1764119A priority Critical patent/GB137018A/en
Publication of GB137018A publication Critical patent/GB137018A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/02—Multi-position wiper switches
    • H01H67/14—Multi-position wiper switches having wipers movable in two mutually perpendicular directions for purpose of selection
    • H01H67/16—Multi-position wiper switches having wipers movable in two mutually perpendicular directions for purpose of selection one motion being rotary and the other being parallel to the axis of rotation, e.g. Strowger or "up and around" switches

Landscapes

  • Telephone Set Structure (AREA)
  • Structure Of Telephone Exchanges (AREA)

Abstract

137,018. Siemens Bros. & Co., Christian, D. A., and Sumner, G. P. July 14, 1919. Automatic exchange apparatus.-In a selector in which a stop 12 is provided to press the pawl 8 out of engagement with the ratchet 3 when the armature 6 of the operating-magnet 5 is released, an abutment 13, which may be integral with the armature, limits the disengaging movement of the pawl, so that it is ready to engage the ratchet when the armature is again attracted. The pawl 8, which has a side wing 11 to engage the stop- 12, is pivoted at 9 and connected to the armature by a spring 10.
GB1764119A 1919-07-14 1919-07-14 Improvements in or relating to Selecting Devices for Automatic Telephone Systems. Expired GB137018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1764119A GB137018A (en) 1919-07-14 1919-07-14 Improvements in or relating to Selecting Devices for Automatic Telephone Systems.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1764119A GB137018A (en) 1919-07-14 1919-07-14 Improvements in or relating to Selecting Devices for Automatic Telephone Systems.

Publications (1)

Publication Number Publication Date
GB137018A true GB137018A (en) 1919-12-31

Family

ID=10098675

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1764119A Expired GB137018A (en) 1919-07-14 1919-07-14 Improvements in or relating to Selecting Devices for Automatic Telephone Systems.

Country Status (1)

Country Link
GB (1) GB137018A (en)

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