US PATENT SUBCLASS 400 / 257
.~ For case-shift by type-head (e.g., spherical type-head) movement


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400 /   HD   TYPEWRITING MACHINES

251  DF  CASE-SHIFT MECHANISM {14}
257.~ For case-shift by type-head (e.g., spherical type-head) movement


DEFINITION

Classification: 400/257

For case-shift by type-head (e.g., spherical type-head) movement:

(under subclass 251) Subject matter wherein the typewriter is provided with a type-head* that includes a type-set-assemblaged*, which type-head is moved by case-shift* mechanism for selection of the form of character* symbol to be used.

(1) Note. The typewriter of this subclass often is provided with a "golf-ball" or spheroidal type-head*. See the definition of type-head in the Glossary, section III, for a discussion of other configurations of type-head elements.