GB311274A - Improvements in impulse senders of the finger disc type - Google Patents

Improvements in impulse senders of the finger disc type

Info

Publication number
GB311274A
GB311274A GB12756/29A GB1275629A GB311274A GB 311274 A GB311274 A GB 311274A GB 12756/29 A GB12756/29 A GB 12756/29A GB 1275629 A GB1275629 A GB 1275629A GB 311274 A GB311274 A GB 311274A
Authority
GB
United Kingdom
Prior art keywords
shaft
spring
wire
wheel
sent out
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
GB12756/29A
Other languages
English (en)
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB311274A publication Critical patent/GB311274A/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
    • H04M1/26—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Braking Arrangements (AREA)
GB12756/29A 1928-05-08 1929-04-24 Improvements in impulse senders of the finger disc type Expired GB311274A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE311274X 1928-05-08

Publications (1)

Publication Number Publication Date
GB311274A true GB311274A (en) 1930-05-08

Family

ID=20307629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12756/29A Expired GB311274A (en) 1928-05-08 1929-04-24 Improvements in impulse senders of the finger disc type

Country Status (3)

Country Link
BE (1) BE360385A (enrdf_load_stackoverflow)
FR (1) FR674600A (enrdf_load_stackoverflow)
GB (1) GB311274A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
BE360385A (enrdf_load_stackoverflow)
FR674600A (fr) 1930-01-30

Similar Documents

Publication Publication Date Title
GB311274A (en) Improvements in impulse senders of the finger disc type
Wenrich et al. Trichomonas microti, n. sp.(Protozoa, Mastigophora)
ES337655A1 (es) Dispositivo para retener una pieza plana sobre un arbol o elemento similar.
GB907099A (en) Improvements in starter pinion electromagnetic control devices
GB488753A (en) Mechanical toy in the form of a soldier throwing a hand-bomb
GB262523A (en) Improvements in or relating to operating mechanism for a clutch or the like
GB522262A (en) Ear-rings
GB284096A (en) Improvements in and relating to governors for talking machine motors
GB312259A (en) Improvements in electro-magnets
USD146683S (en) Roof light for motor vehicles
USD160127S (en) Wheel hub cap
USD161569S (en) Jar cap opener
GB664785A (en) Improvements in or relating to twist grip controls for bowden transmission systems
AU164819B2 (en) Brake with soft steel return spring
AU2135753A (en) Brake with soft steel return spring
GB315823A (en) Centrifugal governor
GB951052A (en) Improvements in or relating to time consuming or delay mechanisms
GB896124A (en) Induction disc apparatus
GB252049A (en) An electric apparatus for indicating and recording quantities at a distance
ES19029U (es) Rectificador electromagnético.
CA514453A (en) Brake having coil spring fastener therein
CA518017A (en) Helical spring friction clutch
CA411881A (en) Spring lay wire rope
GB374811A (en) Improvements in shock absorbers for vehicles
CA401044A (en) Spring seat clip