GB164510A - Improvements in and relating to electric signalling apparatus - Google Patents
Improvements in and relating to electric signalling apparatusInfo
- Publication number
- GB164510A GB164510A GB745220A GB745220A GB164510A GB 164510 A GB164510 A GB 164510A GB 745220 A GB745220 A GB 745220A GB 745220 A GB745220 A GB 745220A GB 164510 A GB164510 A GB 164510A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- drum
- pawl
- message
- lever
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L15/00—Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code
- H04L15/04—Apparatus or circuits at the transmitting end
- H04L15/16—Apparatus or circuits at the transmitting end with keyboard co-operating with code discs
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Switches With Compound Operations (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
164,510. Wates, F. S. S., and Major, J. L. March 12, 1920. Addition to 132,818. Morse and like code signal transmitting arrangements.-In a code signalling-transmitter as described in the parent Specification means are provided for sending out a call prior to the despatch of a message and the multiple - position switch takes the form of a plug 86 used with a selector-board 84, Fig. 3. Clockwork 44 drives the shaft 35 through a suitable clutch 70, 71, the commutator drum being fast on the shaft 35 and revolving five times as fast as the distributing drum on a shaft 80 driven by gearing 78, 79 from the shaft 35. Part of the surface of the distributing drum is divided into five segments. In the second and fourth positions current passes to the call sign drum 37, in the third and fifth to the message drum 34 while in the first position current does not flow, but the mechanism gathers speed. The selector board comprises a number of sets of holes 85, each set having a common contact 87 for numerals and separate contacts 88 for letters. A call followed by a message is despatched by plugging in and then depressing a handle 46 to wind up the clockwork, the handle returning to its first position during the sending. The shaft 45 of the spring motor 44 drives the collinear shaft 58 by means of a pawl and ratchet 67, 52, Fig. 2, a bell-crank lever 53 engaging a recess 56 on a disc 57 on the shaft 58 and preventing the drive taking place till a cam projection 60 in the driving train forces back the lever, which is then held by means of a pawl 64 and catch 63 till a projection 59 trips the pawl and allows the spring 62. to pull the lever back to the locking position.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB132818D GB132818A (en) | 1920-03-12 | ||
GB745220A GB164510A (en) | 1920-03-12 | 1920-03-12 | Improvements in and relating to electric signalling apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB745220A GB164510A (en) | 1920-03-12 | 1920-03-12 | Improvements in and relating to electric signalling apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB164510A true GB164510A (en) | 1921-06-13 |
Family
ID=9833338
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB132818D Active GB132818A (en) | 1920-03-12 | ||
GB745220A Expired GB164510A (en) | 1920-03-12 | 1920-03-12 | Improvements in and relating to electric signalling apparatus |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB132818D Active GB132818A (en) | 1920-03-12 |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB164510A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2430371A (en) * | 1946-02-25 | 1947-11-04 | Faraday Electric Corp | Variable impulse transmitter |
-
0
- GB GB132818D patent/GB132818A/en active Active
-
1920
- 1920-03-12 GB GB745220A patent/GB164510A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2430371A (en) * | 1946-02-25 | 1947-11-04 | Faraday Electric Corp | Variable impulse transmitter |
Also Published As
Publication number | Publication date |
---|---|
GB132818A (en) |
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