Hoe & Co. had previously made the first flat bed and cylinder press ever used in the United States. It was the pattern known as the “Single Large Cylinder,” the whole circumference of the cylinder being equivalent to the entire travel of the bed forwards and backwards, the cylinder making one revolution for each impression in printing, without stopping. Only a portion of the cylinder was employed to take the impression, the remainder of its circumference being turned down small enough to allow the type on the bed to pass back under it without touching. Hundreds of these machines were made and are now in use, and they are still made at the present day, with patented sheet fliers and other devices and improvements in the methods of manufacture. Other similar presses were made later by the press-makers A. B. Taylor, A. Campbell, C. B. Cottrell, and C. Potter, Jr. The patented sheet flier before referred to, and which was used on the “Adams” bed and platen press, was greatly improved by Hoe & Co. and placed upon all their cylinder presses. Before proceeding further with an account of the faster newspaper presses, it may be well to complete the history of machines employed up to this time for book, job and woodcut printing. For this purpose the “Single Large Cylinder,” already described, was first used. In England there were the “Napier” presses, the “Wharfdale” and many others, all involving the same general principle, and capable of turning out more or less satisfactory work, in proportion to the perfection of their construction and the skill of those operating them. Most of the English machines, however, show defects in mechanical construction. In fact, the supremacy of the American printing press is maintained in a large measure by the simplicity, accuracy and perfection of its mechanism. Foreign presses, made by the cheap labor of Europe, have been repeatedly brought to this country and introduced into printing offices. They have never, however, lasted long, most of them having perished in the using or been found unprofitable. There have been various modifications of the principle underlying the Napier movement for flat-bed presses, i. e., having the driving wheel engage the rack at all times, reversing the movement by turning about the ends of the rack and driving the bed alternately in opposite directions. As early as 1847 Hoe & Co. patented an entirely new bed driving mechanism. To a hanger fixed on the lower side of the bed were attached two racks facing each other, but not in the same vertical plane, and separated by a distance equal to the diameter of the driving wheel, which was on a horizontal shaft and movable sideways so as to engage in either one or other of the racks. By this means, a uniform movement was obtained in each direction.