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I, Adams. Power Printing Press 3 Sheets-Sheet l. I, ADAMS. POWER PRINTING PRESS, 3 E G e 3. E res e 3 Sheets Sheet 2. I. ADAMS. POWER PRINTING PRESS, Reissued Apr. 20, 1858. 3 Sheets Sheet 3. I, ADAMS. POWER PRINTING PRESS, Reissued Apr, 20, 1858 6 72X UNITED STATES PATENT OFFICE. ISAAC ADAMS, OF BOSTON, MASSACHUSETTS. IMPROVEMENT IN THE PRINTING-MACHINE CALLED A POWER PRNTING-PRESS, Specification forming part of Letters Patent dated October 4, 1830; extended seven years; again extended by ac of Congress from August 16, 1856, to March 2, 1864; Reissue No. 546, dated April 20, 1858, To all whom it may concern. : Be it, known that I, ISAAC ADAMs, of Bos In this figure the notive-power is shown as ton, in the county of Suffolk and State of applied to a horizontal shaft, the main wheel Massachusetts, have invented a new and use. upon the vertical shaft being a level gear (see ful and Improved Printing-Machine, which I also Fig. 20) and put on the shaft just above term a “Power Printing-Press;' and I do the crank, and being driven by a pinion (see hereby declare that thc same is described and Fig. 28) upon the horizontal driving-shaft car. represented in the following specification and rying the fly-wheel B, Fig. 3. Such driving the accompanying drawings, making a part shaft may be turned by any sufficient steady of this specification, in which mechanical power; or it may be moved by Figure 1 denotes a side elevation of such manual power by the use of a winch or land. printing-press; Fig. 2, a top view of it; Fig. crank. 3, an elevation, in perspective, of a press of C C C C, Fig. 1, and C. C. C C, Fig. 2, de. this description. note the frame-work of the machine. The bed The remaining figures are views of details. b' l', Figs. I and 5, on which the form of type rests, consists of a cast-iron plate, made suffi. plained.and will be hereinafter referred to and ex ciently stiff and strong by the use of as little The drawings are not all made on the same metal as practicable in the form of ribs which scale, but the smallest are large enough for run in different directions upon its lower sur explanation. face, as seen in Fig. 4, which is a view, on a The printing-machine embodying my said small scale, of the under side of said bed. An invention may be described as made up of end view of the bed, with the form of type b b four systems or aggregations of parts, each upon it, is denoted by the dotted lines' l', Fig. system being used for the performance of a 1. The surface upon which the form rests distinct portion of the process of printing, as should be nearly a perfect plane, although it performed by the said machine-to wit, first, should be slightly concave or depressed, to the distriloutlon of the ink; second, feeding compensate for the yield of the metal, which and registering the sheets to be printed; is inevitable when impressions are being third, conveying the sheets into the press, or taken. When the press is in operation, the into that part of the machine where the im bed is caused to rise in order to produce im pressions are to be produced; fourth, produc pressions, and to sink down again to its rest ing the in pressions-each system or 'aggre ing-place in order to allow the ink-rollers to gation being so calculated and contrived pass between it and the platen to impart ink within itself, and so connected and combined to the types. The bed is kept in a horizontal witl each and all the others, that while it per positiou by means uot only of the projections forms its office in a complete and distinct man Ul, Figs. 4 and 5, arranged at its ends and ner, all receive their appropriate motions from made to slide in vertical grooves e e, Fig. 6, the same motive agent. Although some parts formed in the opposite inner sides of the frame, are in constant operation, while other parts but also by brackets c' c', Figs. 5 aud 23, one nove and stop, and lhave their periods of rest end of each of which is secured to the under and motion alternately, the said systems sev side of the bed, one at each end thereof. At erally complete the performance proper to the lower end of each of these brackets is a each of them in consecutive order. box, c'. These boxes are made, respectively, Fig. 1 is an elevation of the machine as to embrace the impression-bolts c, Figs. 1, 2, made with the power to move it applied by 3, and 29, upon which they slide up and means of a spur wheel and pinion, A, running down. Instead of such boxes, there may be horizontally below the flooring on which the projections at the lower ends of the brackets, machine stands. The pinion-shaft in', Fig. 1, which may slide in vertical grooves. The whether vertical or horizontal, may or ouglht weight of the bed is counterbalanced by to be provided with a fly-wheel. means of weights did, placed upon the levers d' d', Figs. 5 and 24, which are secured to the Fig.2 is a top view of the machine, and Fig. rocker-shaft d' d', and are connected with the 3 is a perspective elevation of it on a small scale. bed by means of the rods d' d'. The said 546 rocler-shaft and levers being rigid, their con true position after having been loosened for nection with the bed serves to keep the bed the temporary removal of the platen. When level in one direction. The bed is raised and the impression is to be altered, the sct-screws made to produce impressions by Ireans of gig intust be loosened or uiscrewed, and the leverse' c', Figs. 1 and 7, called “toggle-joints,” nuts g g turned as much as may be required, whicla levers may be operated by a cam; but on the completion of which the said set for the operation of which I prefer to use a screws are again to be tightened without re crank, D, and pitman or shackle-bar D', Figs. moving said pins of; but when the plater is 1 and 9. to be moved laterally from over the bed the Fig. 7 is a detached view of the toggle-joints; said pins must be taken out, while the set 1Fig. 20, the same of the impression-crank, and screws remain tight. The nuts can then be Fig. 9 the same of the said pitman. These turned back, so as to relieve the platen from toggle joints are hinged together, as seen in any pressure and allow it to be moved away Fig. 7. They are also hinged to the bed and from over the type or form. When the platen to the seat oa which they rest by means of is again brought to its place, the pin-holes in steel pins l' e” and lugs e. e., the said seat said hoops and the corresponding holes in the on which said toggles rest being on a cross platen will serve as guides by whicl the nuts bar or winter, E, Figs. 8, 25, and 34, of suffi. may be brought to the sane positions they cient strength to sustain the impression, The were in before being altered. By this con winter is placed under the machine and con trivance of the nuts g'g'', the hoops g, and the nected at its two ends,ff, with the platen by set-screws g, for increasing or diminishing means of two ve: tical bolts, cc, Figs. 1, 3, the distance between the platen IF and the and 29. winter E, I am enabled, with great ease and Fig. 25 is an elevation of the bottom bar or expedition, to insure the most accurate and winter, such as used in the press deliueated delicate, and at the same time the most per by Fig. 1; but in order to avoid inconvenieut manent, adjustment of the impression to be height in the machine, the winter may be con given to the printed sheets--a result of great structed as shown in the perspective view in value and importance in good printig. IFigs. S and 34-that is, with a ledge or shoul The toggle-joints are applied between the der, f, disposed near its lower edge, on which centers of the bed and winter. The crank the lower end of the toggles may rest. D, by which the pitman and toggles are op Letter F, Figs. 1, 2, and 16, denotes the erated, is arranged with its shaft in a-vertical platen, which is formed somewhat in the same position and so as to run in boxes lili, Figs. manner as the bed-that is, with ribs or 1 and 6, secured to the cross-bars at the flanges to give it strength and stiffness. It end of the machine. The pitman D", by should be constructed a little narrower and means of which motion is transmitted from shorter than the bed, and should be provided the crablk to the toggle-joints, is attached to with means at each corner-as, fur instance, the crank D by a strap or shackle, h", Figs. 1, either projections ff", as shown in Figs.
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