[GreenKeys] Wheatstone Tape setup 1930

[Richard Knoppow]

     McElroy used to make these perforators. Do you know if they 
were worked with fingers directly or did they also need the 
mallets? I have seen only pictures of them in his advertising. I 
suspect they used some sort of electrical punch. BTW, it seems to 
me that hand punching must be very slow. Since tape transmitters 
could run at very high speeds the keyboard type punch seems to be 
much more practical for any but casual use.

On 7/12/2021 8:33 AM, Duncan Brown wrote:
> The more generic term for these 2-hole tape perforators is 
> "Morse Perforator."
>
> Charles Wheatstone came up with the idea, in 1858, of 
> perforating tape for machine-sent Morse transmissions. But 
> Wheatstone's perforator only had three buttons: [dot], [space], 
> & [dash].
>
>
>
>
> You held a mallet in each fist and pounded on the buttons to 
> perforate the tape. Later, there was a pneumatic-assisted 
> version that did not require as much force, but still a 
> 3-button keyboard.
>
> In 1905, Edward E. Kleinschmidt applied for a patent 
> (#0946372A, granted 1910) for a keyboard-operated Morse (or any 
> other code) perforator.  In 1912, he applied for an improved 
> version (#1085985A, granted 1914).  About the same time, John 
> Gell, of the New Zealand Telegraph Department, came  up with a 
> similar machine.
>
> The Kleinschmidt Electric Co. Keyboard Perforator ( 
> https://www.navy-radio.com/morse/Kleinschmidt-wheatstone.jpg ) 
> became the standard Morse perforator. After KEC merged with 
> Morkrum, they were continued to be sold under the Teletype 
> Corp. name through WWII. The wooden cased models with the 
> Teletype Corp. label were continued to be called "Kleins" by 
> the old Morse operators.
>
> Even calling them "Morse" perforators, is not quite accurate, 
> in that they could be programmed to perforate any code, such as 
> Continental or Cable codes. At the AWA Museum, we have a 
> wooden-cased, Teletype Corp. branded, perforator with a 
> Cyrillic keyboard.  I don't know what code it generates.
>
> have fun,
>
> Duncan
> K2OEQ
>
>
> On 11-Jul-21 17:19, Nick England wrote:
>> Besides teletypes I am fascinated by paper tape Morse code 
>> systems -
>> Here's a cool photo from 1930 showing the whole setup - Navy 
>> Radio Station at Los Banos, Philippines
>> https://www.navy-radio.com/morse/LosBanos-07-morse.jpg 
>> <https://www.navy-radio.com/morse/LosBanos-07-morse.jpg>
>> Note the "tape buffer" trash cans.
>>
>> Right-to-left in the photo
>> Transmitting - Tape is punched with a Wheatstone perforator 
>> and read with a keying head which keys the transmitter
>> https://www.navy-radio.com/morse/boehme-tm11-486-02.jpg 
>> <https://www.navy-radio.com/morse/boehme-tm11-486-02.jpg>
>> Receiving - tape is pulled through an ink recorder and then 
>> pulled past a radioman who reads the Morse "slip" and types on 
>> a typewriter.
>> https://www.navy-radio.com/morse/boehme-tm11-486-01.jpg 
>> <https://www.navy-radio.com/morse/boehme-tm11-486-01.jpg>
>>
>> FWIW more photos and videos of equipment and operation at
>> https://www.navy-radio.com/morse.htm 
>> <https://www.navy-radio.com/morse.htm>
>>
>> Cheers,
>> Nick England K4NYW
>> www.navy-radio.com <http://www.navy-radio.com>
>>
>
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-- 
Richard Knoppow
1oldlens1 at ix.netcom.com
WB6KBL