Electro-mechanical cipher machine

Details Electro-mechanical cipher machine Electro-mechanical cipher machine

1938-05-04

1979-03-13

Bentley, Stephen C.

Typewriting machines

Key reassignment

Electrically powered

B41J 768

Patent

active

041439783

ABSTRACT:
2. A cipher machine, comprising a plurality of rotatably mounted coding wls each having ratchet teeth on its periphery and an annular series or uniformly spaced contacts on one face opposed to a like series on the opposite face, electrically conducting means randomly connecting each contact to a contact on the face of the wheel opposite thereto, a fixed spacer between each two of said wheels having through conductors to close the circuits between the contacts on the adjacent wheels, a plurality of type bar actuating solenoids, means operatively connecting each of said solenoids respectively to a circuit through said coding wheels and spacers, a plurality of keys, circuit means connecting each said key respectively to a circuit through said coding wheels and spacers, circuit closing means carried by each said key, a respective functional unit of operating mechanism associated with each code wheel to rotate such code wheel through the angular space of one ratchet tooth each time such unit operates, said functional units of operating mechanism being conditionable for operation or non-operation, and a common member actuatable by every key when depressed to cause operation of all said units of operating mechanism then conditioned for operation.

REFERENCES:
patent: 1510441 (1924-09-01), Hebern
patent: 1540107 (1925-06-01), Damm
patent: 1643546 (1927-09-01), Damm
patent: 2116731 (1938-05-01), Noll
patent: 2116732 (1938-05-01), Noll
patent: 2116733 (1938-05-01), Noll

Affiliated with

Also associated with

Rating

Electro-mechanical cipher machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electro-mechanical cipher machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-mechanical cipher machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2369472