US28823A - Printing-press - Google Patents

Description

2 Sheets-Sheet 1.

M. s BEACH.-

Printing Press.

PatentedJune 26. 1860.

Z dlin/eyas 9s 0mm cad 1 6h 0 3mm.

2 Sheets-Sheet 2.

M. S. BEACH.

Printing Press. 8

No. 28,823. Patented June 26, 1860.

UNITED STATES PATENT orruon.

MOSES S. BEACH, OF BROOKLYN, NEI/V YORK.

PRINTING-PRESS.

Specification of Letters Patent No. 28,823, dated June 26, 1860.

To all whom it may concern.-

Be it known that I, MOSES S. BEACH, of the city of Brooklyn, in the county of Kings and State of New York, have invented'a new and useful Improvement in Printing- Presses; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon.

To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.

The object of this invention is to simplify the operation of the fingers or grippers by which the sheet is taken; and to provide a method for depositing printed sheets upon a fly board with the printed side uppermost and without the necessity of making use of conducting tapes.

In the accompanying drawings Figure 1, is a view of the right hand side of a portion of the ordinary drum-cylinder press, with my improvements attached; Fig. 2 is a section view at Y, Y, Fig. 5, on the same side; Fig. 3 is a view of the left hand side; Fig. 4 is a section view at Z, Z, Fig. 5, on the left hand side; and Fig. 5 is a plan view, with the feed and fly boards removed.

In these several figures A, A, is the frame; B the printing or impression cylinder; C the feed board; D the fly board; E the motive crank; F F the fingers; G the finger shaft; H, 1, two finger cranks; J, K two stationary finger cams; L, pendulum switch cam; H, finger crank tripping pin; N operating pin for the switch cam L; O, P, Q, R, S, train of gear wheels by which rotary motion is given to T, T, (the series of paper rolls) U, V, sun and planet gear wheels, by which an intermittent planetary motion is given to the same rollersU being fixed to gear wheel P, and V fixed to the shaft WV-and the rollers T, T being carried by the arms X, X which are fixed to the same shaft. The rollers T, T are provided with a finger shaft (4; fingers b, b, finger crank 0, finger crank stationary cam (Z; and moving cam e,'corresponding to similar parts connected with the cylinder B.

- The operation is as followszOne of the sheets of paper on the feed boardrepresented by red linesFigs. l and 3-being placed with one edge projecting upon the cylinder B, and motion being given by the crank E, is caught and pressed against the carried around and printed upon, the position of the types at the time of printing being represented'by the blue lines B underneath the cylinder. After being printed upon, it is released from the fingers and at the same time is taken by the corresponding fingers on the rollers T. It passes then around those rollers, which for the time are stationary in the position represented. When the sheet is clear from the type, and nearly clear from the cylinder B, the rollers commence their planetary movement downward and around the shaft W and at the same time the sheet is released from the fingers, and, as it unwinds from the rollers, falls upon the pile of printed sheets-represented by red lineson the fly board D, (Figs. 1 and 3). The speed of the circumference of the rollers T, T being just equal to the planetary circle which it describes-represented by dotted lines-the sheet of paper falls to the fly board without other motion than that of gravitation.

My improvement consists of three methods shown for closing the fingers F, F, and thus taking the sheet from the feed board C; in the method for taking the sheet from the cylinder B, at the same time counteracting its motion, and delivering it on the fly board D in a state of rest; in the peculiar form of the fiy board D, and in the use of the points f. The first of these methods for closing the finger F, F is shown in Figs. 1, 2 and 5 and consists in the use of the coil spring G on the finger shaft G; the finger crank H with its friction roller H and that part of the stationary cam J, which is marked J In this; and also in each of the other methods, the fingers are opened or thrown backward by the tripping point H of the finger crank H, catching upon the tripping pin M; (which is fixed to the frame), and in all of the drawings the fingers are shown in the act of being thus opened or thrown backward, the finger crank H being still in contact with the tripping pin M. In the first method for closing the fingers the friction roller H passes under the cam J at the same time that the finger crank H leaves the tripping pin M.

The coil spring is thus held in check until the friction roller H reaches the end of cam J at J Here the spring, keeping the friction roller H pressed against the cam J compels it to follow around the end-0f cylinder B, by the fingers F, F, and thus J 2 (dotted blue lines Fig. 1) until the finger shaft G has passed by; and then it follows downward, toward the center of cylinder B, until the fingers rest upon the cylinder, and the operation of closing them is completed. As the movement is not reversible, care must be taken in moving the press backward (unless the-tripping pin M be jointed so as to allow tripping point H to pass it backward without injury In the second and thir methods, the coil spring G is not required. The friction cam ordinarily in use, or any device which will prevent the fingers from changing position, by gravitation or by centrifugal motion, is all that is required.

The second method, shown also in Figs. 1, 2 and 5, consists in the use of the surfaces in cam J on each side of the space J the pendulum switch cam L, which is pivoted upon the frame A; the operating pin N, which is fixed to cylinder B; the finger crank H, and friction roller H As the finger crank H approaches the point for taking the sheet from the feed board C, the switch cam L is operated by the contact of its foot L with the operating pin N, thus opening the track, as represented, for friction roller H to pass up into the slotted portion J of the cam J. Dotted blue lines and red lines, Fig. 1, show the positions of these various parts immediately after the roller H has thus passed into J While finger shaft G, is moving by J the operating pin N, shifts the point of cam L by catching upon the foot L and thus opens the track down for friction roller H on the side of cam L opposite to that by which it passedup. The passing, in this way, of roller H down and out of J brings the fingers down upon cylinder B and completes the operation of closing them.

The third method for closing the fingers F F is shown in Figs. 3 and at. Here, as in the other methods, the fingers are represented as in the act of being opened or thrown backward. The finger crank I is provided with a pin I besides a friction roller I As this finger crank approaches the point for taking the sheetthe fingers and finger crank having been thrown entirely back or open, as already describedthe friction roller I enters the wide part (K of the stationary cam K. Moving on and rising in the earn the friction roller I throws the pin I into the narrow part, K of the cam K, as shown by the dotted blue lines Fig. 3. The in I is held in this (K and acts as the fiilcrum of the finger crank I which, serving as a lever, throws the friction roller I over the point K of the cam K, and allows it to pass out of the cam by the track opposite to that by which it entered. In this way the same motion is given to the fingers as in the other methods.

In the finger motion on the rollers T, T, the coil springs (11?, serves to open instead of close the fingers b, I). In operation, the fingers need to be closed only when the rollers T, T, are in the position shown. This closing is effected by the finger crank pin 0 on finger crank 0, coming in contact with the stationary cam d, (which is fixed to frame A,) by which the end of the crank c is raised (thrown outward) so as to strike the end 6 of the moving cam e. As the rollers T T continue their revolution, the end of the finger crank 0 is brought under the cam e and the fingers b, b are thus brought down upon the rollers T and grasp the paper in the same way as do the fingers F, F on cylinder B. The dotted red lines Figs. 1 and 3, show the finger crank c and fingers I), Z), in the act of closing, and similar dotted red lines in Figs. 1 and 3 show fingers F, F, and finger cranks H, I at the commencement of their opening motion releasing the sheet, which is being taken by the fingers b b. The sheet, when thus taken, is held to the rollers by the fingers b, 6, until the finger crank c has passed entirely around the inside of the cam 6. When the end of the crank 0 passes the end 6 of the cam e, the coil spring a throws the fingers Z) Z) open, and thus releases the sheet, as shown by dotted blue lines Fig. 3. The cam 6, being fixed to the shaft w, accompanies the rollers T T in their planetary motion, and after the re leasing of the sheet, as just described, the finger crank a continues to move under the cam but without touching it, as shown by red lines Fig. 4 until, the planetary circle being completed, the crank pin 0 again comes in contact with the stationary cam d. The counteraction of the motion of the sheet will be understood by a consideration of the direction of the rotary and planetary motions of the rollers T T, indicated by arrows.

I have provided a double fly board, D, one side of which is of the ordinary fiat formthe side shown uppermost in Figs. 3 and 4, and the other side concave-,as shown uppermost in Figs. 1 and 2. The advantage gained by the concave fly board is in superior evenness of depositing or flying the printed sheets, as, having less distance to fall from the rollers T, T, and that distance being the same for all parts of the sheet, there is less liability to displacement or unevenness in the deposit.

The method described exhibits the principle upon which I deposit or fly sheets taken from a printing press. A modification of the same method is shown in red lines in Fig. 2. Here the sun and planet gear wheels U, V, are dispensed with and ordinary gears of the same size are substituted.

The rollers T, T are no longer supported by arms fixed to the shaft W, but have their bearings in the endless chains h, (of which there is one on each side of the press,) and therefore make an elliptical planetary motion around shaft 9, as well as around shaft IV.

The rotary motion of the rollers T, T is communicated by a gear chain, 2' (driven by gear wheel Q, and passing over shaft 9) into which the gear wheel S, of rollers T, T, takes. The planetary chains it move with the shafts g, 20, while the rotary gear chain 2' passes over wheels which run loose on those shafts; that over shaft IV being fixed to gear wheel Q and moving with it. By this last described method the sheets are rolled (or unrolled) upon a flat fly board and the intermittent motion is avoided. The sheet leaves the cylinder B at a speed somewhat greater than that of the surface of the cylinder, in consequence of the rollers T T moving away from the cylinder while the sheet is being delivered to them. To this, however, there is no objection, as the sheet will have cleared the types before being taken by the rollers T, T. The intermittentplanetary motion may, however, be retained in connection with the chains, if desired.

henever it is desirable to deposit a sheet of length greater than the circumference of the rollers T, T, I make use of the second series of rollers T sustained from the same points on the chains .h or arms as that the rollers T, T, are sustained, and running in connection with and by friction against those rollers. In such cases the sheet is drawn between the rollers T, T, and the rollers T before being released from the fingers, after which the pressure together of the rollers retains it in place and delivers it regularly. This modification is desirable in adapting my improvement to presses in which the smaller sizes of printing cylinders are used, the space in such cases being limited as to height. Another position of T, T and T in their planetary motion is shown in blue lines, Fig. 2. I wish it to be understood, that the cams J, K and L, when applied to presses, the cylinders of which make more than one revolution to each impression, are so arranged on moving checks or other suitable device, as to be presented for use only during the particular revolution when it becomes necessary to close the fingers as described. It may also be found desirable alternately to present and remove the cam (Z, in a similar way.

In experiments for depositing sheets from a moving cylinder, it has been found that the sheet would sometimes cling to and follow the cylinder after the hold of the fingers upon it had been released. The use of the series of rollers T T avoids this difliculty almost entirely. The air being admitted freely between the rollers, their planetary motion does, if the rotary motion does not, separate the sheet from them effectually. To perfect the operation, however, and guard against any contingency, I provide a series of defleeting points f, which extend from the fly board D, between the rollers T, in such Way as that the revolution of those rollers brings these points inside of the foremost end of the sheet of paper, as shown in Figs. 1 and 8, and thus prevent it following the rollers after it has been released from them. It will sometimes be desirable to connect these points with a shaft, so that afterentering inside the foremost end of the sheet, they may be made to drop down with, and hold the end of the sheet upon, the fly board, until the whole sheet is deposited. This arrangement will secure still greater evenness in the flying.

Having thus described my improvement, what I claim as my invention and desire to secure by Letters Patent, is

1. Closing the fingers of printing cylinders by the combined operation of the coil spring G the finger crank H and friction roller H and the cam J 2 or their equivalents, constructed and operated substantially as described.

2. Closing the fingers of printing cylinders by means of the pendulum switch cam L, and the operating pin N, or their equivalents, constructed and operated substantially as described.

3. Closing the fingers of printing cylinders by means of the cam K, and the combination of friction roller I and pin I or their equivalents constructed and operated substantially as described.

4. Opening or throwing backward the fingers of printing cylinders, or paper rollers, by means of the coil spring a and closing them by the combined operation of the finger crank a, and crank pin 0 and the cam e, or their equivalents; constructed and operated substantially as described.

5. Depositing sheets on a board, or table, by means of the rollers T T, or their equivalents, having an axial combined with a planetary motion, constructed and operated substantially as described.

6. The rollers T used in connection with the rollers T, T, in drawing forward and depositing sheets, or their equivalents, constructed and operated substantially as described.

7. The concave form of the fiy board D, Fig. 1, as described.

8. The deflecting points f, or their equivalents, used in connection with the rollers T, T, in depositing the sheet, constructed and 0perated substantially as described.

M. S. BEACH.

Witnesses:

JAMES C. Coornn, N; O. GORHAM.

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