GB682276A - Improvements in or relating to automatic alarm devices - Google Patents

Improvements in or relating to automatic alarm devices

Info

Publication number
GB682276A
GB682276A GB14206/50A GB1420650A GB682276A GB 682276 A GB682276 A GB 682276A GB 14206/50 A GB14206/50 A GB 14206/50A GB 1420650 A GB1420650 A GB 1420650A GB 682276 A GB682276 A GB 682276A
Authority
GB
United Kingdom
Prior art keywords
pick
relay
alarm device
motor
june
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
GB14206/50A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB14206/50A priority Critical patent/GB682276A/en
Priority to US229675A priority patent/US2729707A/en
Priority to CH294194D priority patent/CH294194A/en
Priority to DEM9793A priority patent/DE896065C/en
Priority to FR1094811D priority patent/FR1094811A/en
Publication of GB682276A publication Critical patent/GB682276A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission Devices (AREA)
  • Burglar Alarm Systems (AREA)

Abstract

682,276. Automatic gramophones. McKELLEN, S. D. June 6, 1951 [June 7, 1950], No. 14206/50. Class 40 (ii) [Also in Group XXXIX] A gramophone-type alarm device (see Group XXXIX) sets up a telephone connection and transmits a recorded message. In operation in response to e.g. flood, fire, burglary, a relay 18 connects the device to an exchange line and releases the turntable catch 15. After the connection has been set up the pick-up is lowered on to the record under the control of a cam 22 on a shaft 11 driven by the gramophone motor. The turntable 17 rotates until an arm 21 on the shaft 11 operates contacts 86 to release the relay 18 which replaces the catch 15. Alternatively the contacts 86 may be operated when the motor slows down by a lever actuated by the governor. The alarm device is reset after re-winding by pressing a button which completes a circuit for relay 18 to restart the motor. The cam 22 lifts the pick-up support 72 and a projection 80 on the support engages an inclined fixed surface 83 to rotate the pick-up to the starting position in which a latch 84 secures the projection 80 until it and the pick-up are lowered when the alarm device operates.
GB14206/50A 1950-06-07 1950-06-07 Improvements in or relating to automatic alarm devices Expired GB682276A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB14206/50A GB682276A (en) 1950-06-07 1950-06-07 Improvements in or relating to automatic alarm devices
US229675A US2729707A (en) 1950-06-07 1951-06-04 Telephonic apparatus
CH294194D CH294194A (en) 1950-06-07 1951-06-06 Automatic alarm device.
DEM9793A DE896065C (en) 1950-06-07 1951-06-07 Alarm device with dials for automatic telecommunication connection
FR1094811D FR1094811A (en) 1950-06-07 1951-06-07 Improvements to automatic alarm devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14206/50A GB682276A (en) 1950-06-07 1950-06-07 Improvements in or relating to automatic alarm devices

Publications (1)

Publication Number Publication Date
GB682276A true GB682276A (en) 1952-11-05

Family

ID=10036978

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14206/50A Expired GB682276A (en) 1950-06-07 1950-06-07 Improvements in or relating to automatic alarm devices

Country Status (4)

Country Link
US (1) US2729707A (en)
CH (1) CH294194A (en)
FR (1) FR1094811A (en)
GB (1) GB682276A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128350A (en) * 1959-04-14 1964-04-07 Hesselgren Tore Signalling system
US3104286A (en) * 1960-07-15 1963-09-17 Mc Graw Edison Co Mechanical telephone dialing instrument

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867500A (en) * 1930-01-08 1932-07-12 Felix F Denzler Automatic fire and burglar alarm system
BE392860A (en) * 1931-12-06
US2036420A (en) * 1932-06-06 1936-04-07 Julius C Lowry Signal apparatus
BE424390A (en) * 1936-11-04
US2131565A (en) * 1937-02-16 1938-09-27 Lauersdorf Albino Oscar Automatic device for effecting telephone calls and transmitting signals
US2276954A (en) * 1939-12-13 1942-03-17 Bell Telephone Labor Inc Call transmitter
US2358586A (en) * 1942-10-20 1944-09-19 American Telephone & Telegraph Telephone call transmitter
FR956829A (en) * 1946-09-03 1950-02-08
US2469278A (en) * 1947-03-18 1949-05-03 Ralph A Sears Telephone alarm system

Also Published As

Publication number Publication date
FR1094811A (en) 1955-05-24
US2729707A (en) 1956-01-03
CH294194A (en) 1953-10-31

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