US17543A - Improvement in power printing-presses - Google Patents

Description

UNITED STATES PATENT OFFICE..

JEDEDlAH MORSE, OF CANTON, ASSIGNOR TO THE S. P. RUGGLES POVER- PRESS MANUFACTURING COMPANY, OF BOSTON, MASSACHUSETTS.

Specification forming part of Letters Patent No. 17,543, dated Julie 9, 1857.

To all whom t may concern:

Be it known that I, JEDEDIAH MORSE, of Canton, in the county of Norfolk and State of Massachusetts, have invented an Improved Power Printing-Press, and I do hereby declare that the same is fully described and represented in the following specification, and the accompanying drawings, of which- Figure l is a top View of the same.; Fig. 2, a front side elevation of it; Fig. 3, a rear side elevation of it; Fig. 4C, a vertical and transverse section of it, such being taken through its front rocker type and so as to show the mechanism in rear of the same. Fig. 5 is a longitudinal and vertical section, it being taken. in front orto the right of the main camgear and so as to exhibit the mechanism for operating the bed.

Such other figures as may be necessa-ry to a correct delineation of my improvements will be hereinafter referred to and described.

In such drawings, A exhibits the pressframe; B, the platen; C,themovablebed; D, the sheet-carrier or frisket-carriage, as it is sometimes termed; E, the pile-platform, and F the iiy or fly-frame.

G is the ink-fountain, H H the arch-rods, and I the arch-bar, directly under which the platen is arranged.

K is the driving-shaft, and L is the main cam-shaft, the two being geared together by a pinion M and a main cam-gear N, iixed to them, respectively. The drivin U-shaft carries a fiy-wheel o and two grooved pulleys P Q, which are arranged on it, as shown in Figs. l, 2, and 4, such drivin g-shaft, when the machine is in operation, being rotated b v power applied to it in any proper' manner.

The sheet-carrierD is a rectangular frame, which slides horizontally on ways c a and has an intermittent, reciprocating, and rectilinear motion imparted to itby means of acam-groove h, which is made in the side of the gear N and operates an arm c, extended from a horizontal shaft d. From the said, shaft two arms e e rise upward, each being jointed to the carrier by means of a pitman f,'arranged as shown in Figs. it and lnkin g-rollers g g are carried by the carrier l), so as to ink the form of type and receive their ink from a drum or cylinder 7i, which obtains its ink from a vibrating roller or carrier li, playing between it and the ink-roller 7o of the ink-fountain. Machinery is applied to the cylinder or drum zy in order to impart to it rotary and endwise movements. For rotating it an endless band m passes around the pulley Q and another pulley n, the latter being fixed on the shaft of the cylinder.

For imparting an endwise reciprocating movement of the cylinder', in order that the ink may be laid evenly on the hiking-rollers, there is placed on the shaft of saidcylinder a lantern-grooved gear or pinion o, formed with a groove around its periphery and with its cogs or teeth at the bottom of said groove. Into this lantern-gear a gear p, rotating on a stationary pin or stud, works. This gear p has its plane inclined with respect to that of the lantern-gear, and so that when both are in rotation the gear p will act as acam on the gear o and move it and its shaft laterally.

The cam-shaft L carries two cams o' o', which respectively operate against pendulous rocker-toggles s s, hinged to the bed C. Figs. G and 7 are inner side views of these rockertoggles and the mechanism immediately adjacent to and operating with them, they being jointed together by a bar t, extended from one to the other, and so fixed to them as to cause one of the toggles to be moved by and with the other. Besides the cams r r the shaft L is furnished with another cam u, which is arranged close to one of the toggle-cams r fr and so as to operate against a pin c, extending from the inner side of the adjacent pendulous toggle. During the rotation of the shaft L the cams fr r act against the rockertoggles and force them upward, so as to elevate the bed toward the platen, the cams and toggles by their conjoint action serving to produce the required pressure for printing a sheet of paper. The object of the additional cam uy and the stud o is to so control the movements of the toggles toward the cams which may be approaching them as to prevent the cams from striking the toggles with a concussion or blow such as Vwould not only operate to the in jury of the macl1ine,but belikely to displace the type more 0r less. Other advantages also result from the above. As soon as the bed drops down to its lowest position the ward, so as to be in a proper position for the cams to again operate and roll against them.

In order that the toggles, after they may have fallen back, may not vibrate forward out of their proper time, the rearmost toggle is provided with a stud fr, which projects from its rear side and operates with a drop-latch y, arranged as shown in Fig. 6. This drop-latch turns on a pins and rests on a shelf a. Vhen the toggles fall backward, the stud c will go under and lift and pass by the drop-latch, which immediately after the same has taken place will fall down upon its shelf, and by resting thereon will prevent the toggle from vibrating forward until it is elevated above the drop-latch. This will be effected when the' toggles are next forced up by the cams. During the next movement of the toggles, that next adjacent to the drop-latch will pass over and down in front of the latter, so as to be capable of going underneath it, as above described.

The press is provided with an inclined table or plate R, on which the sheets of paper to be printed are to be laid. Underneath the table there are arranged four dischargingrollers a2 h2 c2 d2. Two of them d2 and c2 are geared together, as shown at e2 and f2. Fig. 8 is an under side view of the said plate and rollers. The two rollers c2 b2, as well as the other two c2 d2, are furnished with a series of endless bands g2 or 71,2, arranged as shown in the drawings. A pulley i2 is fixed on the shaft of the roller c2 and has an endless band 7a2 extending around it and the pulley P, hereinbefore referred to, the same serving to put the discharging rollers and beltsin revolution. The whole, or belts and rollers, may be termed the sheet-discharging apparatus. It operates in connection with two rollers Z2 m2, arranged as shown in Fig. 5 and by dottedl lines in Fig, l.. A set of rods or bands n2 n2 n2 is fastened to the roller Z2 and to the front edge of the sheet-carrieres and pass underneath the roller m2. A small barrel or drum o2 is fixed on the shaft of the roller Z2 and has a cord p2 attached to it and wound around it and fixed to the periphery of a barrel or pulleyq?, which rotates on a pin r2, and has a coiled spring (represented at s2 by dotted lines) arranged within and fixed to it and the pin r2, as the mainspring of a watch is arranged in its barrel and fixed thereto and to its arbor. The object of the spring-pulley and cord is to turn back the roller Z2 and wind the tapes or bands thereon while the carrier is moving backward. During the forward movement of the carrier with a sheet of paper the latter will rest on the bands; but while the carrier is being retracted the bands cause the sheet of paper to pass between the rollers Z2 m2 and so as to be delivered or properly presented to the discharging apparatus, which, seizing the sheet, moves it back and down upon the fly, by which it is turned over upon the pack on the table or platform E. This fly is put in motion by a pitman si and two arms t2- ft, arranged as shown in the drawings, the arms project-ing, respectively, from the Iiy and the shaft CZ. This fly is constructed of a shaft'o2 and a se-A ries of arms or fingers 102 w?, extended from it, as shown in the drawings. On` this flyshaft is a small eccentric x2, (see Fig. 9,) which is a section of theeccentric and exhibits on an enlarged scale the mechanism for lowering the pack-platform. This eccentric works in a draw-pawl y2, which acts against a ratchet CL3, that by means of gears b3 c3 gives rotary motion to a shaft CZE. This shaft carries two pinions, which operate,respectively, in vertical racks extending down from the pile-platform, ,one of the said pinions and its rack being seen at (Z4 and e4 in Fig. 9. The said pileplatform should be so applied to theframeA as to be capable of being moved freely in vertical directions.

From the above it will be seen that during the reciprocating or back and forward movements of the fly the pawl thereof will cause the train of wheels to be put into an intermittent motion, such as will gradually depress the pile-platform. If the machinery be properly proportioned, the said platform may be caused to descend in the proper degree and rate as the pile of paper received on it may increase in thickness.

On the outer end of the main cam-shaft L is a cam e5, which works against a lever f5. (See Fig. 3.) This lever turns on a fulcrum g3, and is bifurcated at its upper end and straddles a rod 718, which is arranged as shown in said figure, and jointed to the crank-pin i3 of a rotary plate or wheel 7a3, and turns freely on the shaft of the ink-fountain roller. The rod h3 extends through the lower arm of an adjustable lever m3 and has a knob or head n3 fixed on its outer end. This lever turns on a fulcrum-screw o3 and between two friction-plates p3 r3, the latter of them being fixed to the press-frame. By screwing up the fulcrum-screw the lever may have any necessary degree of friction between the plates when it is moved on itsfulcrum.

An internal ratchet S5 is fixed on the shaft of the ink-fountain roller, and in order to operate therewith the disk or plate 7c3 carries a spring-pawl Z5, the same being as shown in Fig. 10, which is a section of the ratchet, and exhibits not only its teeth, but the said pawl. A pin a3 extends through the rod h3 and near to the lever f5, as shown in the drawings. Furthermore, a weight o3 is affixed to the pawl-plate in position, as shown in Fig. lO. The gravitating power of the weight elevates the pawl and turns the ratchet, so as to rotate the friction-roller until the knob n3 brings up against the lever m3.

Although the lever f5 has a positive motion, the rod h3 may have a variable one, or one which may be varied according to the position of the adj Listing-lever m3, which determines the amount of the fall of the weights and of course the extent of forward movement oli the pawl. From the above it Will be seen that the rotary motion of the fountain-roller may be either increased or diminished, as occasion may require, in order to enable it to impart more or less ink to the carrier-roller.

Vhat I claim as of my invention in the above-described press is as follows:

l. The combination and arrangement of mechanism or devices for supporting the sheet of paper over the carrier or frisket-carriage and guiding and presentingit to the discharging apparatus, such devices consisting of the cords n2 n2, the rollers Z2 m2, the drum o2, cord p2, and the barrel or pulley q2, provided With a spring or its equivalent, as described.

2. The combination ofthe cam u and stud c' with the rocker-toggle and its operatingcam, the same being for the purpose as specifled.

The combination for regulating the rotary motion of the ink-fountain rollers, the same consisting of the adjustable stop-lever m3, the connecting-rod h3, the cani e5, the lever f5, the weighted plate 7:?, and the pawl Z5,

and the internal ratchet S5, constructed and applied together substantially as specified.

et. Combining with the pile-platform and the lly a mechanism, substantially as described, which by the reciprocating movements of the fly shall lower the platform in correspondence with the increase of thickness of the pile, such mechanism being the cam on the fly-shaft, the pawl thereof, and the train of gears and racks, applied and operating as specified.

5. The mechanism or combination for imparting to the ink-cylinder h endwise motions, as described, the same consisting of the grooved pinion or gear o, and the inclined gear p, constructed, arranged, and applied together and so as to operate substantially as specified.

In testimony whereof I have hereunto set my signature.

JEDEDIAH MORSE.

Vitnesses:

R. Il. EDDY, F. P. HALE, Jr.

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