. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . tioned. The le-ver x and armature 10 at the side of the coreof the magnet, form a convenient means forlifting the lever w and its tooth out of thescrew 7j and this may be made to operate bya feeble pulsation, so as not to move the im-pression-lever. I claim as my invention— 1. The sliding shield actuated by the T-le-ver v and pins 5 and 6, on the shaft Tc, in com-bination with the two type-wheels, substan-tially as set forth. 2. The re volving disk o and the cam 2, in com- ,535 bination with the shield s and type-wh
. Collection of United States patents granted to Thomas A. Edison, 1869-1884 . tioned. The le-ver x and armature 10 at the side of the coreof the magnet, form a convenient means forlifting the lever w and its tooth out of thescrew 7j and this may be made to operate bya feeble pulsation, so as not to move the im-pression-lever. I claim as my invention— 1. The sliding shield actuated by the T-le-ver v and pins 5 and 6, on the shaft Tc, in com-bination with the two type-wheels, substan-tially as set forth. 2. The re volving disk o and the cam 2, in com- ,535 bination with the shield s and type-wheels,substantially as set forth. 3. A unison stop actuated by a screw uponthe type-wheel shaft, substantially as set forth. 4. The lever x and armature 10, at the sideof the core of the magnet d, in combinationwith the unison-lever w, for moving the same,substantially as specified. Signed bv me this 13th day of November,A. D. 1871. T. A. EDISON. Witnesses: Chas. H. Smith,Geo. T. Pinckney. T. A. in Printing-Telegraphs. No. 128,604. Patented July 2, PHOTO-LITHOGRAPHIC CO. ,OSBOKHtS FROCKS.) 138,604 United States Patent Office. THOMAS A. EDISON, OF NEWARK, NEW IN PRINTING-TELEGRAPHS. Specification forming part of Letters Patent No. 128,604, dated July 2,1872. To all whom it may concern; Be it known that I, Thomas A. Edison, ofNewark, in the county of Essex and State ofNew Jersey, have invented an Improvementin Printing-Telegraphs; and the following isdeclared to be a correct description thereof. This invention relates to combining withthe printing-lever an air-cushion that acts asa detainer to the printing mechanism so as toprevent it operating, except after the type-wheel has been set by the pulsations in themain line, and the circuit is kept closed whilethe air-cushion is sufficiently displaced to per-mit the impression. In the drawing, Figure 1 is a plan, and an elevation, of this improvement. The type-wheel magnet a and
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