Dow Jones Broad Tape News Printer
© Brooke Clarke 2013 - 2022
Background
Photographs
Ticker
Electromagnet
Patents
Related
Related Patents
Links
Background
Although this news printer used wide (broad) sheets of paper
instead of the narrow tape used for stock quotations, it still
uses a single type wheel and the "ticker" method of printing so
I think of it as a "stock ticker".
I'm looking for any and all information about this printer, let me know if you have some.
The page originally was called broad sheet, but I've been told
a broad sheet is newspaper size and broad tape is tabloid size,
so broad tape it is.
The paper should be 5" wide, my first try has it as 6-1/8 which
is a little too wide for the mechanism.
Photographs
Fig 1 Micro switch at left end.
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Fig 2
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Fig 3 "Ticker"
motor to rotate type wheel
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Fig 4 Shaft (12) for
motor at left
Carriage return spring on arm at bottom
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Fig 5 Bottom Solenoid (what does it do?)
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Fig 6
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Fig 7 Bottom Solenoid triggers print CR?
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Fig 8 Bottom Solenoid
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Fig 9 Vertical motor shaft out bottom
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Fig 10 Character Advance
wobble plate and rack
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Fig 11 Cinch Jones 8 pin
Plug
Note: Numbers are on back of connector.
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Cinch Jones 8 pin Plug
Pin
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Function
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1
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nc
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2
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SPDT Microswitch
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3
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"
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4
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"
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5
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Red wire Ticker
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6
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Black wire Ticker
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7
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green wire Electromagnet
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8
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blue wire Electromagnet
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Photos © Jeffrey R. Brooks
Fig 1
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Fig 2
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Fig 3
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Fig 4
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Fig 5
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Fig 6
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Ticker
See Fig 3. The ticker is driven
with a bi-polar signal on two wires (Cinch Jones plug pins 5
& 6, see Fig 11).
It has a DC resistance of 88 Ohms.
If the motor supplies torque on the type wheel shaft, then
activation of the ticker would allow the type wheel to move one
step.
Electromagnet
It has a DC resistance of 400 Ohms.
Patents
On Label:
1832160
Feeding Mechanism for Printing Telegraphs, A. Vischer Jr.
(Dow, Jones & Co.),
Nov 17, 1931, 400/320 ; 178/28; 400/322; 400/332.4;
400/332.5; 451/392; 74/167
This may be for the wobble plate character advance.
Calls:
1178215
Printing Telegraph Receiver, G.S. Conger (Dow Jones &
Co.), Apr 4, 1916
Calls:
765978
Receiving Instrument for Printing Telegraph Systems, W.R.
Landfear,
Jul 26, 1904,
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D87174
June 14, 1932, D20/2 - standing casket design.
flat glass to allow viewing and reduce noise
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1957076
Printing Telegraph, H.L. Paulding (Financial Press
Companies), May 1, 1934,
178/4.1R ; 178/23R;
178/28
This includes a
schematic of how the transmitter is wired to the system and
this printer.
Note: Bipolar signal in Fig 3a.
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1957088
Switch, A. Vischer Jr. (Financial Press Companies), May 1,
1934,
337/89 ; 337/104; 337/109; 337/113
Switch housed in multi-plug assembly
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1979510
Telegraphic Printing Mechanism, A. Vischer Jr.(Financial
Press Companies),
Nov 6, 1934, 400/320 ; 16/94R; 178/27; 188/316; 267/124;
267/64.15;
400/174; 400/322; 400/328.1; 403/318; 403/356; 451/233;
464/106
This appears to be this printing mechanism!
Calls: 1957076 (see
above)
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Related Patents
261567
Printing-telegraph, E.A. Schoettel, July 25, 1882, - line over
line rather than paper tape. Uses many type wheels.
1140861
Printing-telegraph receiver, John E
Wright, Wright
Telegraphic Typewriter Co, 1915-05-25, -
1201809
Printing-telegraph receiver, Amos F
Dixon, WE,
1916-10-17, -
1370402
Automatic telegraph system, George
R Benjamin, WU,
1921-03-01, -
Related
Telegraph
Stock Ticker Patents - illustrated
with drawings
WU 5A High Speed Stock Ticker
Links
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Page created 2 April 2013.
