[GreenKeys] Wheatstone Tape setup 1930

[Duncan Brown]

Richard,

McElroy made a "Morse Package Unit, MP-1" that was a perforator, 
receiver, keyer all in one one portable box. The perforator was a 
two-finger operation, probably with electrical assist.

Here are a couple of pictures.  I've sent them & some more to Nick to 
add to his Morse Perforator page.

Have fun,

Duncan
K2OEQ


On 12-Jul-21 14:09, Richard Knoppow wrote:
> 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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