Patent GB-190318587-A (GB)
Title: Improvements in or relating to Typewriting Machines
Inventor: MOYA HIDALGO
Filed: 1903-08-28
Granted: 1904-08-25
Abstract: 18,587. Moya, H., [known as Moya, D.]. Aug. 28. Type - writers.-Relates to type-writers of the class in which the desired types are selected by the operator partly by a transverse movement o r shift of the paper roller, and comprises arrangements for causing the roller to move parallel to itself, so as to ensure the alignment of the printed matter. The paperroller A, Fig. 1, is mounted on a carriage a<3>, which is carried by levers C, Figs. 1 and 3, mounted on pivots c, which are actuated by " shift " keys c', c<2>. The keys are assisted by a spring, which is not sufficiently strong in itself to raise the carriage. The keys are mounted on a common pivot c<5>, and one of them has an extension c<6> connected with one of the levers U by a link c<7>. The other key c<2> has a cross-piece c<8>, which, when the key is depressed, engages with the key c' and depresses it. Two different degrees of depression of the key c<1> are thus obtained, enabling the roller A to have two different positions of shift. Mounted loosely on the axle a, Fig. 1, of the roller A, is a dependent frame b carrying a resilient pawl engaging with a ratchetwheel on the axle a, which is also provided with a thumb-wheel to enable it to be turned for spacing in the usual way. A tail-piece b<2> on the frame b has a slot b<3>, which engages freely with a bar b<4> carried by the base of the machine, and ensures that the roller A moves parallel to itself. The pivots c are arranged opposite to the intermediate position of the roller. The cylindrical type-carrier D is rotated by a cam actuated by the character key-levers. The carrier is then locked in position by a blade or tine which engages with a pronged circular plate or segment on the shaft of the carrier. The ribbon spools E are interchangeable, and are removably mounted on a vertical spindle e opposite to the printing-point. The ribbon e<15> passes through guides e<16>. The lower spool is frictionally locked on the lower part of the spindle, which is enlarged and conical, so that the spool revolves with the spindle. The upper spool revolves freely. To reverse the action of the spools, they are taken off and interchanged, and replaced without being inverted. The spindle e is rotated intermittently by a spur-wheel e<4> and worm e<5>, the latter being actuated by a ratchetwheel e<7> and a pawl e<8> carried by an arm e<9> on a rocking shaft f. A horizontal bar f<1> is attached by links e<13> to arms e<10> on the shaft f, and runs under all the character keys, so that it is operated by the keys only during the latter part of their downward movement. The spacing keylevers G are attached by slotted links to arms e" on the shaft f, so that while the levers G may rock the shaft f, independent movements of the shaft will not actuate the levers. When the keys of the lever G are depressed, the pawl e<8> passes idly over one tooth of the ratchet-wheel e<7>. When the keys are released, the shaft e is rotated by the return or spring-actuated movement of the oscillatory arm e<9>. Arms on the shaft are connected with the oscillatory member of a carriage escapement. The carriage travels on a runner a<5> which slides in a flanged crosshead c'‹ carried by the levers C. The bell-hammer k has an extension k<1> projecting into the path of the tail-piece b<2>. The extension is pressed aside on the return movement of the tail-piece. The paper-roller may have only one, or more than two positions of shift. The parts may also be arranged so that the intermediate position is the normal one. Springs or counterweights are then employed to return the carriage to its normal position after the downward shift.