The Stop Cylinder Press may be described as follows: The type is secured upon a traveling iron bed, which moves back and forth upon friction rollers of steel, the bed being driven by a simple crank motion, stopping and starting it without noise or jar. All the running portions of this bed are made of fine steel as hard as it can be worked. The cylinder is stopped by a cam motion pending the backward travel of the bed, and during the interval of rest the sheet is fed down against the guides and the grippers closed upon it before the cylinder starts, thus insuring the utmost accuracy of register. After the impression, the sheet is transferred to a skeleton cylinder, also containing grippers, which receives, and delivers it, over fine cords, upon the sheet flier, which in turn deposits it upon the table. The distribution of the ink is effected partly by a vibrating, polished, steel cylinder, and partly upon a flat table at the end of the traveling bed, the number of form-inking rollers varying from four to six. This is without doubt the most perfect flat bed cylinder printing machine that has ever been devised. It is made in various sizes. The average output of one of these presses with a bed 36 × 54 inches is from 1,000 to 1,500 impressions per hour. The demand being constantly for machines taking on larger sized forms, there has been lately constructed and patented by R. Hoe & Co. an entirely new Stop Cylinder Press, having a bed 45 × 62 inches, and which can be run at a speed of 1,700 impressions an hour. The main points of difference between the Stop Cylinder Press for type forms and the Lithographic Press is in the form of the bed only, the other portions, including the driving apparatus, being almost identical; therefore the same general description applies to these new machines for both classes of work. A great objection to flat-bed presses of large size has always been the height of the cylinder from the floor, necessitated by the increased dimensions of the driving apparatus under the bed. In these new presses the bed is reciprocated as usual by a crank motion, but made exceptionally strong and compounded. This method of construction not only gives the increased speed but makes the bed of the machine low down, so that it is better under the hand and eye of the operator. The product of the machine is delivered printed side up, by a patented take-off apparatus, which takes the sheets from the impression cylinder by grippers in a reciprocating carriage and deposits them upon a table. No tapes or guides come in contact with the freshly printed ink. [Illustration: ROTARY ZINCOGRAPHIC OR ALUMINUM PRESS]