. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . to the line; hence, thelever m1 will be operated to impress from thetype-wheel I1, and by the clamp and pawl uv and lever vl to feed the paper as soon as apulsation is sent through 27. If the type-4wheels are stopped with circuit through h brok-en, the circuit-closer 45 will be in contact witli3; hence, a pulsation through 27 will pass bythe magnet m 4, closer 3, spring 45, shaft 0,frame and bed/ / to 28, and operate the print-ing-lever m2 and give an impression from thetype-wheel I, and by the clamps and pawls v2uz
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . to the line; hence, thelever m1 will be operated to impress from thetype-wheel I1, and by the clamp and pawl uv and lever vl to feed the paper as soon as apulsation is sent through 27. If the type-4wheels are stopped with circuit through h brok-en, the circuit-closer 45 will be in contact witli3; hence, a pulsation through 27 will pass bythe magnet m 4, closer 3, spring 45, shaft 0,frame and bed/ / to 28, and operate the print-ing-lever m2 and give an impression from thetype-wheel I, and by the clamps and pawls v2uz and lever v2 feed the paper. By this ar-rangement either type-wheel can be printedfrom at pleasure, and there are not any partsto shift or change. I claim as my invention— The circuit-closing arm 45 and connections 3 4 to the respective magnets m m\ in combi-nation with the printing-levers m1 m2, type-wheels I I1, and actuating mechanism, sub-stantially as set forth. Signed by me this 29th day of June, A. Witnesses: T. A. EDISON. Geo. T. Pinckney,Chas. H. AM. PHOTO-LITHOGRAPHIC CO. NX (oSaORNtS PHOC£SSj United States Patent Office. THOMAS A. EDISON, OF NEWAEK, NEW IN PRINTING-TELEGRAPHS. Specification forming part of Letters Patent No. 131,340, dated September 17, 1872. To all whom it may concern: Be it known that I, Thomas A. Edison, ofNewark, in the State of New Jersey, have in-vented an Improvement in Printing-TelegraphInstruments; and the following is hereby de-clared to be a full and correct description ofthe same. In this instrument an electro-motor gives ro-tation to a vertical shaft, and upon this shaftis a pulsator which makes and breaks the cir-cuit to the type-wheel magnet, and, by the pul-sations transmitted, revolves the type-wheeland its shaft by a step-by-step motion. The present improvement relates to meansfor arresting the rotation of the pulsator, whena finger-key is depressed, so as to break thecircuit to the type-wheel
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Keywords: ., boo, bookcentury1800, booksubjectinventions, booksubjecttelephone
