US1615311A - Impulse-sending device - Google Patents

Impulse-sending device Download PDF

Info

Publication number
US1615311A
US1615311A US679517A US67951723A US1615311A US 1615311 A US1615311 A US 1615311A US 679517 A US679517 A US 679517A US 67951723 A US67951723 A US 67951723A US 1615311 A US1615311 A US 1615311A
Authority
US
United States
Prior art keywords
dial
spring
hub
shaft
impulse
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 - Lifetime
Application number
US679517A
Other languages
English (en)
Inventor
Herbert F Obergfell
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.)
Automatic Electric Inc
Original Assignee
Automatic Electric Inc
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 BE343766D priority Critical patent/BE343766A/xx
Application filed by Automatic Electric Inc filed Critical Automatic Electric Inc
Priority to US679517A priority patent/US1615311A/en
Priority to US53039A priority patent/US1708951A/en
Application granted granted Critical
Publication of US1615311A publication Critical patent/US1615311A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
US679517A 1923-12-10 1923-12-10 Impulse-sending device Expired - Lifetime US1615311A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE343766D BE343766A (tr) 1923-12-10
US679517A US1615311A (en) 1923-12-10 1923-12-10 Impulse-sending device
US53039A US1708951A (en) 1923-12-10 1925-08-28 Impulse sending device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US679517A US1615311A (en) 1923-12-10 1923-12-10 Impulse-sending device

Publications (1)

Publication Number Publication Date
US1615311A true US1615311A (en) 1927-01-25

Family

ID=24727226

Family Applications (1)

Application Number Title Priority Date Filing Date
US679517A Expired - Lifetime US1615311A (en) 1923-12-10 1923-12-10 Impulse-sending device

Country Status (2)

Country Link
US (1) US1615311A (tr)
BE (1) BE343766A (tr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503541A (en) * 1947-08-06 1950-04-11 Kellogg Switchboard & Supply Device for controlling the adjustment and operative actuation of impulse contacts in telephone dials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2503541A (en) * 1947-08-06 1950-04-11 Kellogg Switchboard & Supply Device for controlling the adjustment and operative actuation of impulse contacts in telephone dials

Also Published As

Publication number Publication date
BE343766A (tr)

Similar Documents

Publication Publication Date Title
US1615311A (en) Impulse-sending device
US2025511A (en) Time controlled mechanism
US2645077A (en) Clock setting and regulating mechanism
US2782274A (en) Low cost clock switch
US1708951A (en) Impulse sending device
US1569450A (en) Automatic switch
US3034241A (en) Telephone subscribers list finder and selector mechanism therefor
US2302625A (en) Electrical timing apparatus
US4157646A (en) Alarm switch and alarm set device
US2217074A (en) Calling device
US1950832A (en) Apparatus for recording the periods of operation of an electrical installation
US2700868A (en) Self-winding watch overwind preventer
US1301499A (en) Electric winding mechanism for clocks and the like.
US3065314A (en) Timed control mechanism
US2873572A (en) Motor-driven clock
US1642822A (en) Calling device
US3131267A (en) Clock or watch having an electric contact controlled by the movement
US1943839A (en) Switch
US2700077A (en) Portable time switch
US2613552A (en) Electrical impulse transmitter
GB396877A (en) Improvements in electric variable resistances
US2448647A (en) Calling device
US1959097A (en) Variable resistor
US3080702A (en) Clock or watch having a tripping mechanism
US3050931A (en) Battery operated clock winding mechanism