US336673A - Printing-machine - Google Patents

Description

(Nb Model.)

G. P. TAYLOR.

PRINTING MACHINE.

WWW

4 Sheets-Sheet 1.

Patented Feb. 23, 1886.

(No Model.) 4 Sheets-Sheet 2.

, G. F. TAYLOR.

PRINTING MACHINE.

No. 336,673. Patented Feb. 23, 1886.

(No Model.) 4 Sheets-Sheet 3.

G. F. TAYLOR. PRINTING MACHINE.

No. 336,673. Patented Feb. 23, 1886.

Wnersar: [norm/07':

(No Model.)

4 Sheets-Sheet 4. G. P. TAYLOR. PRINTING MACHINE.

No. 336,673. Patentedfeb. 23, 1886.

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GEORGE F. TAYLOR, OF BROOKLYN, NEWV YORK, ASSIGNOR TO CALVERT B. COTTR-ELL, OF STONINGTON, CONNECTICUT.

,PRlNTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 336,673, dated February 23,1886.

7' Application filed December 15, 1884. Serial No. 150,357. (No model.)

If 0 all whom, it may concern.-

Be it known that I, GEORGE F. TAYLOR, a citizen of the United States, residing in the city of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Printing-Machines, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to what are known as perfecting presses, by which sheets of paper are printed on both sides while passing once through the press.

The invention consists in the combination of two impression-cylinders geared to rotate in opposite directions, a carrying-cylinder for taking a sheet printed on one side from the first-impression cylinder, a reversing-cylinder for taking said sheet from the carrying-cylinder and delivering it to the second-impression cylinder with the unprinted side outward, and a reciprocating bed having a single form, which is carried by the bed past both impres sion-cylinders, and which operates in connection with one impression-cylinder to print one side of the sheet during the movement of the bed in one direction, and in connection with the other impression cylinder to print the other side of the sheet during the movement of the bed in the other direction. A press containing this combination produces by one movement of its bed back and forth two complete impressions of the form, one impression on one side of the sheet and the other impression on the other side of the sheet, the two impressions being reversed; hence the sheet being cut in two after the printing of both sides makes two sheets precisely alike, and consequently two perfected sheetstwo complete newspapers, for instance, are produced at each complete operation of the press.

Figure 1 in the drawings is a vertical section of theprinting parts of aperfecting-press constructed according to my invention, the plane of section being parallel with the bed and transverse to the axes of the several cylinders. Fig. 2 is a plan of the same. Fig. 3 is a vertical section of the same at right angles to Fig. 1, taken between the impressioncylinders. Fig. 4 is a diagram of a double four-page printed sheet, illustrating the arrangement of pages in the four-page form.

Fig. 5 is a diagram of a double eight-page printed sheet, illustrating the arrangement of pages in the eight-page form.

Similar letters of reference indicate corresponding parts in the several figures.

The representation in the several views is limited to the parts directly involved in my invention. The other details necessary to complete the press, being substantially such as are found in other presses, are briefly described in such manner that they will be an derstood by those skilled in the arts ot building and operating printing-presses. A is the framing of the press. B is the bed. C C are the two impressioncylinders. D is the carrying-cylinder. E is the reversingcylinder. F is the feed-board. G is a cylinder forming part of the delivery apparatus. H H are rollers of the inking apparatus.

The two impression cylinders are of the same circumference, and are arranged side by side at a short distance apart over the path of the bed, and they are intended to rotate continuously in opposite directions, as indicated by arrows in Fig. 1, they being represented as geared for the purpose through intermediate gears, a Z), with a gear, 0, on the main shaft I of the press. Each of these cylinders is to have applied to it such mechanism as is applied to the impressioncylinder of an ordinary two-revolution press, for the purpose of lifting it and holding it up clear of the form during the movement of the bed in one direction, and allowing it to come down to the position for producing the impression during the movement of the bed in the other direction, the first-impression cylinder C being down in the printing position, while the bed is mov ing toward that end of the press nearest the said cylinder-that is to say, the end at the right of Fig. 1-and the second-impression cylinder C being down in its printing position while the bed is moving in the opposite direction.

As the mechanism employed for raising and lowering the cylinder is well understood, I have not represented it. The bed B is represented as having its reciprocating motion obtained from the main shaft I through a mangle-wheel and rack motion, 01 cf, like that commonly employed for driving the bed of printing-presscs. Vhile this motion takes place the sheet from the feedboard just as the bed once back and forth, the cylinders make four revolutions. The carrying-cylinderD is situated directly over the first-impression cylinder, 0, and its journal-boxes g are connected with thejournal-boxes h ofthe said impressioncylinder in such manneras by frames i, which contain all of thesejournal-boxesthat when the said impression cylinder G is lifted or depressed the said carryingcylinder is also lifted or depressed. The reversingcylinder E is situated directly over the second-impression cylinder 0 and its journal boxes j are connected with the journal-boxesh ofthatimpres- :5 sion-cylinder in such manneras by frames i, which contain all of these journal-boxes that when the said impression-cylinder C is lifted or depressed the said reversing cylinder is also lifted or depressed.

The iinpression-cylinder, the carrying-cylinder, and the reversing cylinder are geared so that all make the same number of revolutions by means of gears 7i: Z in none on each, as shown in Fig. l-the direction of the carry- 2 jug-cylinder D being the reverse of that of the first-impression cylinder 0, and the direction of the reversing-cylinder E being the reverse of that of the second-impression cylinder O, and the directions of the said carrying and reversing cylinders being the reverse of each other.

The two impressioncylinders are furnished, respectively,with gripper'shafts and grippers 0 and 0 like those of the cylinders of ordinary two-revolution cylinder-presses, the said grippers being operated by any suitable mechanismsuch, for instance, as that employed for operating the grippers in those presses. V The carrying-cylinder D and reversing-cyl- 40 inder E are like the delivery gripper-cylinders commonly employed for the delivery of the sheet in printing-presses in which tapes are not used for delivery, being furnished, respectively,with grippershaftsandgrippers 5 p q,which may be operated by properly-timed mechanism similar to that employed for operating the grippers of those delivery grippercylinders.

' The paper may be fed to a press of this kind in sheets by hand, or may be supplied from a roll, J, as indicated in Figs. 1 and 2, and cut off at proper distances to form sheets of proper size by cutters arranged as indicated at s.

The delivery of the printed sheets may be 5 effected by any suitable delivery apparatus which will operate in the same relation with the secondimpression cylinder 0 as delivery apparatus commonly employed operates in relation to the singleimpression cylinder of an ordinary two-revolution press. For the purpose of showing the position of such delivery apparatus, 1 have represented at G a cylinder which is part of such an apparatus.

The operation of printing the two sides of a sheet by this press is as follows: The grippers 0 of the first-imprcssion cylinder receive starts from the farthest end of the press, or, what, for the sake of distinction, may be termed the left-hand end, as shown in Fig. 1, which represents the position of these parts at the time of the sheet entering. the press, the firstimpression cylinder 0 being in its depressed position, and the second-impression cylinder 0 being raised. The bed then carry ing the form toward the other end of the press or to the right, as indicated bythe arrow near it in Fig. 1, causes the sheet passing round 0 to receive the first impression. The said sheet is caused to make a complete revolution around the first-impression cylinder, whose grippers are then opened. The grippers p of the carrying-cylinder D,which have now come to the proper position, close upon the said sheet, which is then taken from C and carried by D a distance equal to one-quarter of a revolution of the latter, when the grippers 1; open to allow the said sheet to be taken by the grippers q of the reversing-cylinder E, which then close upon it. The latter cylinder carries the said sheet through three-quarters of one revolution, when its grippers open to allow the grippers 0 of the second impression cylinder 0 which have now arrived in the proper position, to close upon and take the said sheet. In passing over the reversing-cylinder E the sheet is completely turned over, so that when taken by the second-impression cylinder as just above described, it is taken with that side which has been printed by G inward and the unprinted side outward. At the time 0 takes the sheet the bed will have started from the right-hand end of the press, the first-impression cylinder 0' will be raised and the second, (1, be depressed to the printing position, and as the bed and form move to the left the previously-imprinted side of the sheet receives the impression, after which the sheet, printed on both sides, will be delivered from the sec ond-impression cylinder 0 inthe same manner in which a sheet is delivered from the single cylinder of an ordinary two-revolution press. It will be understood that the cylinders make four revolutions for every printing, and the first-impression cylinder arrives in a position to take a new sheet every time the bed starts from the end of the press farthest from said cylinder.

The arrangement of the pages in the form for printing with this press will have to be varied according to the number of pages, as will be readily understood by the experienced printer accustomed to arrange matter in forms which contain several pages of matter; but

as simple illustrations of proper arrangements I have shown the two examples in Figs. 4. and 5, wherein the numbers of the pages on the upper side of the sheet are shown in bold numerals and those of the pages on the under side in dotted numerals.

It will be understood that either form is to be arranged upon the press to run in the direction of the arrow shown on its sheet and the reverse, and each sheet is to be divided into two in the line as x.

Vhat I claim as my invention, and desire to secure by Letters Patent, is-

The combination, in a printing-press, of two impression-cylinders geared to rotate in opposite directions, a carrying-cylinder for taking a sheet printed on one side from the firstimpression cylinder, a reversing-cylinder for taking the sheet from said carrying cylinder and delivering it to the secondimpression cylinder with the unprinted side outward, and a reciprocating bed having a single form which is carried by the bed past both impressioncylinders and operates in connection with one impression-cylinder to print one side of the sheet during the movement of the bed in one direction, and in connection with the other impressioncylinder to print the other side of the sheet during the movement of the bed in the other direction, substantially as herein described.

In testimony whereof I. hereby sign my name, in the presence of two subscribing witnesses, this 20th day of March, 1884.

eno. F. TAYLOR.

Witnesses HENRY T. BROWN, FREDK. HAYNES.

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