GB279730A - Constant speed drives - Google Patents

Constant speed drives

Info

Publication number
GB279730A
GB279730A GB1327527A GB1327527A GB279730A GB 279730 A GB279730 A GB 279730A GB 1327527 A GB1327527 A GB 1327527A GB 1327527 A GB1327527 A GB 1327527A GB 279730 A GB279730 A GB 279730A
Authority
GB
United Kingdom
Prior art keywords
constant
motor
constant speed
tuning
subsidiary
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
GB1327527A
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.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories 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 US112463A priority Critical patent/US1753331A/en
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to GB1327527A priority patent/GB279730A/en
Priority to DEE35699D priority patent/DE556331C/en
Publication of GB279730A publication Critical patent/GB279730A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
    • H04L13/02—Details not particular to receiver or transmitter
    • H04L13/04—Driving mechanisms; Clutches
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Multiple Motors (AREA)

Abstract

279,730. Beauty, W. E., (Bell Telephone Laboratories, Inc.). May 17, 1927. Constant-speed control systems.-A main motor 8 controlled for constant speed by a constant-frequency device such as a tuning- fork interrupter 14 is mechanically coupled to a subsidiary motor 29 controlled both for constant speed and constant phase relationship by the same constant-frequency device, in order to get an accurate drive suitable for the distributors of printing telegraphs. The main motor may, as shown, be a direct current machine supplied from a generator 11 and having armature tappings connected to the tuning-fork circuit. The subsidiary coupled motor may be a phonic wheel actuated by a group of magnets arranged as shown. A mercury-filled flywheel may be added
GB1327527A 1926-05-29 1927-05-17 Constant speed drives Expired GB279730A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US112463A US1753331A (en) 1926-05-29 1926-05-29 Constant-speed drive
GB1327527A GB279730A (en) 1927-05-17 1927-05-17 Constant speed drives
DEE35699D DE556331C (en) 1927-05-17 1927-05-20 Device to keep the speed of rotation of telegraph distributors constant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1327527A GB279730A (en) 1927-05-17 1927-05-17 Constant speed drives

Publications (1)

Publication Number Publication Date
GB279730A true GB279730A (en) 1927-11-03

Family

ID=10020007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1327527A Expired GB279730A (en) 1926-05-29 1927-05-17 Constant speed drives

Country Status (2)

Country Link
DE (1) DE556331C (en)
GB (1) GB279730A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744293C (en) * 1938-01-27 1944-01-13 Junghans Geb Ag Countershaft drive regulated to constant speed and driven by an auxiliary motor, the mean speed of which corresponds approximately to the set speed to be kept constant

Also Published As

Publication number Publication date
DE556331C (en) 1932-08-06

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