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OMNIGRAPH MORSE TELEGRAPH TRAINING MACHINE, CHARLES CHINNOCKThis device is known as an “Omnigraph”, and it was made
by the Omnigraph Manufacturing Company of New York. It was used to teach the
Morse Code to new telegraph and radio operators.
The original patents for this device were issued to Charles
Chinnock on Aug 25, 1903 (736,936) and Oct. 24, 1904 (no. 773,374).
The Omnigraph model shown here consists of a
variable speed spring-powered motor and a stack of 15 aluminum disks which have
patterns of dots and dashes “encoded” in their serrated edges. As the motor
runs, the disks rotate, a “finger” on a leaf spring follows the pattern on the
disks, and operates a set of contacts which operates a sounder, buzzer or lamp. As seen in the video this unit is running, it does read each disk and advance to the next disk. The clockwork mechanism looks dirty so a cleaning and oiling would be beneficial to its operation. The ad in the pictures is for referance and not included.
Items are Described to the best of my ability.
WE PREFER PAYPAL BUT CAN ACCEPT OTHER PAYMENT.
IF THE SHIPPING CALCULATOR DOES NOT SHOW A SHIPPING COST FOR YOUR COUNTRY THE ITEM MAY BE TOO LARGE OR HEAVY FOR PRIORITY MAIL INTERNATIONAL.
Weight: 10 lbs.
If you have , call me at 678-779-8924 (9-5 Eastern – Mon thru Friday).
9.99
0.00