The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 1981
Filed:
Sep. 25, 1978
W S Gubelmann, deceased, late of Convent, NJ (US);
by Walter Gubelmann, executor, Palm Beach, FL (US);
William R Grier, New Vernon, NJ (US);
Realty and Industrial Corporation, Morristown, NJ (US);
Abstract
A mechanism which provides bi-directional movement of the carrier of an electric typewriter incorporating proportional spacing. A ratchet arrangement is operable in both directions to provide the desired proportional spacing increments, with rotation of a ratchet wheel in the clockwise direction being controlled by engagement of an associated pawl with one of a plurality of stop engaging surfaces of a control member which sets the number of proportional spacing increments desired. For rotation of the ratchet wheel in the counterclockwise direction, a solenoid is coupled to the control member to momentarily rotate it clockwise until a stop engaging surface thereof abuts a selected stop surface corresponding to the number of proportional spacing increments desired, and causing the pawl associated with the ratchet wheel to move clockwise by a corresponding number of ratchet teeth--after which the solenoid is released, permitting a cocked spring to return the control member to its initial position and cause the pawl to rotate the ratchet wheel counterclockwise by a corresponding number of proportional spacing increments.