Type-bar Action Patents (Class 400/422)
  • Patent number: 4390295
    Abstract: In a typewriter a carriage spacing mechanism is mounted on a support element to space a paper bearing carriage independently from a base structure and is connectable for assembly of the machine to a control means supported by the base structure. Keys, intermediate levers and type basket are assembled independently from the base structure and are fixed to the base structure only through the medium of a supporting block for the keys and fixing means for the type basket. A plate picks up the striking movement of the type bars and comprises a plurality of bearing elements disposed so as to cause the plate to rock about two pivot elements of the bearing elements and a cam portion which is dimensioned so as to regularize the stroke of a transmission element in dependence upon the particular type bar actuated for the striking.
    Type: Grant
    Filed: March 20, 1980
    Date of Patent: June 28, 1983
    Assignee: Ing. C. Olivetti & C., S.p.A.
    Inventor: Walter Albrile
  • Patent number: 4150903
    Abstract: A toy simulating a typewriter for enabling a child to compose a large number of sentences from a limited number of words, the toy having a keyboard with a plurality of keys, each key having a word imprinted thereon. A carriage is provided with paper receiving imprints of the words from hinged type arms operable upon depression of the keys, depression of one of the keys performing the imprinting operation and release of the key actuating a spacer frame coacting with an indexing bar for incrementing the carriage under force of a spring a predetermined distance.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: April 24, 1979
    Assignee: Mattel, Inc.
    Inventors: Charles E. Bailey, Sidney Bass, Russell C. Edmisson