US PATENT SUBCLASS 400 / 460.1
.~.~.~ Including rollers or balls

Current as of: June, 1999
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400 /   HD   TYPEWRITING MACHINES

383  DF  TYPE-BAR-ACTION MECHANISM OR TYPE-FACE ON TYPE-BAR OR TYPE-FACE INKER {19}
456  DF  .~ Type-bar or type-member guide structure {5}
460  DF  .~.~ Guide adjacent print-point {2}
460.1.~.~.~ Including rollers or balls

DEFINITION

Classification: 400/460.1

Including rollers or balls:

(under subclass 460) Subject matter wherein said guide means is provided with a pair of cylindrical elements or a pair of spheroidal elements to facilitate the guiding of the type-bar* element or the type-bar* member to the print-point*.

(1) Note. Usually the rollers or balls are located one on each side of the type-face* element or the type-bar member at the print-point, and reduce the friction between the guide and the element or member.