Registers – Coded record sensors – Particular sensor structure
Patent
1978-08-14
1980-01-29
Shepperd, John W.
Registers
Coded record sensors
Particular sensor structure
35 6, 235489, G09B 1300
Patent
active
041854004
ABSTRACT:
A typewriter and the like utilized as an instructional aid device has control means for teaching alphabetical letter recognition, the sequence of letters in forming words and the association of a word to the picture of an object. A coded card, the preferred control means, carries the word related to the object, and optionally the picture of the object, and includes a series of perforations related to the word, which perforations are adapted to be penetrated by attachments carried on the key bars only when a key is struck in proper sequence. If an incorrect key is struck the device does not function. Card advancing means are provided to advance the card after each correct key is struck in proper sequence. In the absence of a control card, the typewriter and the like can be operated in a conventional manner.
REFERENCES:
patent: 698114 (1902-04-01), Herlt
patent: 1862872 (1932-06-01), Vincent
patent: 3114036 (1963-12-01), Andregg
patent: 3246402 (1966-04-01), Diamond
patent: 3494051 (1970-02-01), Kobler
patent: 3536178 (1970-10-01), kBreidenbach
patent: 3729081 (1973-04-01), Ozimek et al.
patent: 3840106 (1974-10-01), Ikeda et al.
patent: 3862679 (1975-01-01), Ozimek et al.
patent: 3866736 (1975-02-01), Ozimek et al.
Batogowski Joseph H.
Chamberlain Albert F.
Gall John C.
Sears, Roebuck and Co.
Shepperd John W.
LandOfFree
Typewriter with instructional apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Typewriter with instructional apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Typewriter with instructional apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-874699