Hand-operated typewriter

Claim 1

In a hand-operated typewriter wherein characters are typed by applying fingers to keys (12) disposed in rows, the keys being located at the center part and the outer parts of each row, said typewriter having: a. a frame (4) extending from the front near to the operator to the rear far from the operator; b. a type bar supporting segment (6) shiftably mounted on said frame, for movement to a high and a low position with a semicircular pivot wire (8) held therein; c. a plurality of type bars (7) having at least two type characters at the upper end which can be selectively applied to paper and a boot shaped part at the lower end for pivotal lever action pivotally supported on said segment (6) by said wire (8); d. key levers (11) and connecting means (13), there being one key lever (11) connected to the lower end of each type bar (7) by said connecting means (13) so adapted and disposed that the pivoting action of the key lever (11) and said connecting means on said lower end causes type bar to pivot about said wire; e. shift means (20) connected to said segment (6) to move said segment (6) to the high and low positions to select one of the characters thereon for typing; wherein the improvement comprises f. several key lever shafts mounted on said frame in several rows at different heights and different distances from the front side of said frame for pivotally supporting said key levers; g. said type bars having connecting apertures for said connecting means in the boot shaped part there being at least two kinds of apertures at a relatively near and relatively far distance from said pivot wire; h. said key levers corresponding to each row of the keys being supported by using of at least two adjacent shafts of said key lever shafts, the lowest one of said at least two adjacent shafts supporting said key levers corresponding to the keys positioned at the center part of each row of the keys and some of those said key levers which correspond to the keys positioned at the outer parts of each row, and said other shaft or shafts except said lowest shaft supporting other of the keys positioned at the outer parts of each row; i. said connecting means corresponding to said key levers of the keys in a center part of each row being connected with said connecting aperture having a rather short distance from said pivot wire; j. and said connecting means corresponding to said key levers supported on said other shaft or shafts being selectively connected with said other of said apertures, so that the strokes of all keys are equalized.