US643139A - Printing-machine. - Google Patents

Description

, Patented Feb. I3, |900. B. H. JORDAN.

PRINTING MACHINE.

(Application led Dec. 20, 1898.)

(No Model.)

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stereotype-plates 2, 3, 4., 5, 6, and 7.

BENJAMIN ll. JORDAN, OF SHARPSBURG, PENNSYLVANIA.

PRINTING-MACHINE SPECIFTCATION forming part of Letters Patent No. 643,139, dated February 13, 1900. Application led December' 20, 1898. Serial No. 699,876. (No model.)

T0 @ZZ wil/om it may concern.'

Be it known that I, BENJAMIN H. JORDAN, a citizen of the United States, residing at Sharpsburg, county of Allegheny, and State of Pennsylvania, have invented or discovered a certain new and useful Improvement in Printing-Machines, of which improvement the following is a specification.

My invention relates to improvements in printing-machines; and among its objects are to provide new and improved means by which the whole or a part of two adjoining pages of the same newspaper-sheet may beprinted on without leaving the usual intervening space and to provide improved stereotype-plates.

In the printing of newspapers the usual space or double margin between two adjoining pages is produced by securing the stereotype-plates or the frame the requireddistance apart. It is frequently necessary to print entirely across the two pages, as in the case of a large advertisement occupying the whole or a portion of both pages. Great difficulty has heretofore been experienced in carrying out this operation, and the means heretofore employed for the purpose have been expensive, complicated, and unsatisfactory.

This invention is designed to overcome the objections to the previous modes of attaining the end set forth.

My invention is illustrated in the accompanying drawings as applied to the cylinder of a rotary printing-machine- In the drawings, Figure lis a side'view, in elevation, of part of a printing-cylinder; Fig. 2, a longitudinal sectional view of cylinder; Fig. 3, an end view; Fig. 4, a cross-section on line y y of Fig. 1; Fig. 5, an enlarged sectional detail View showing manner of joining plates, and Fig. 6 an enlarged perspective View of part of a plate.

Throughoutthc several figures of the drawings like numerals of reference indicate the same parts.

Referring to the drawings, to the cylinder 1 of the printing-niachine are secured the The plates 3 and 6 and 5 and 7 are separated from each other by the usual space 8, and the usual means for producing such space are employed. The bars 10 separate the plates longitudinally and serve to form the upper and lower margins of the newspaper. The bars are beveled along each'edge, so as to bear on t-he correspondingly-beveled edge of the plates. These bars are provided with screws 11, by which they are secured to the cylinder. At each end of the cylinder are provided the ordinary constructions for securing the plates to the cylinder, consisting of the headed screw-bolts 12, passing through plate 13 and screw-adj usted locking-catches 14 into the grooves 15, formed in the cylinder.

My invention is illustratedas applied to plates 2, 3, 4, and 5. By the upper plates 2 and 3 it is desired to print entirely across the two pages of a sheet. For this purpose the meeting edges of plates 2 and 3 are made square, so as to form a flush joint. In the adjacent edges and on the under surfaces of plates 2 and 3 are formed the beveled recesses 16, which are adapted to be brought together and register, forming mortises when the plates are'in place on the cylinder. This mortise is adapted to be engaged by the tenoned end of a clamping-block 17, having flanges formed on two sides near the bottom. These flanges are adapted to slide under the walls 18 in the widened lower portion of a slot 19, cut longitudinally in the cylinder and open at one end at 2O to permit the insertion ofthe flanged block. This block is provided with a screw-bolt 2l, which extends from the recess 22, formed in the cylinder. The purpose of the screw-bolt 2l is to keep the blocks from entering the recess 22 and falling out when the plates are removed from the cylinder. The lower plates L tand 5 are separated by a space 9, which forms the usual interpage margin. The edges of the plates 4 and 5 are beveled and are clamped by the beveled edges of blocks 23, the surfaces of which are slightly below the outer surfaces of the plates, just as blocks 17, but of course exposed to View.

In securing the plates having the square abutting edges to the cylinder, or, as illustrated, the plates 2 and 3, the plates 3 and 5 are first placed on the cylinder and the clamping-blocks 17 adjusted in the slot into engagement with the recesses in plate 3, whereupon the plates 2 and et are applied to the printing-cylinder and the recesses in plate 2 caused to register with the recesses in plate 3 and are engaged by the cla1npingblocks.

IOO

After said plates are in position on the cylinder the screw-bolts 12 are turned to press 3 and hold the plates 2 and 3 together. By this construction the plates are held rmly and closely together at the 'intersection of their square edges and the printing may extend uninterrnptedly across the two pages, even permitting part of one letter to be on one plate and part on the other plate. Bars l0 are then screwed down on the plates. f

It is obvious that slight changes in the details of construction of my invention or in the number and arrangement of the plates may be made without departing from the spirit of my invention.

What I claim isl. In a newspaper-printing machine, the combination, with the printing-cylinder, of stereotype printing-plates arranged thereon to print across two pages of a newspaper without forming a space between the pages, said plates havingsquare abutting edges and a recess in the adjacent edge of each plate extending inwardlyfromthe edge and under the printing-surface thereof, the recess on one plate adapted to register with the recess on the other plate when the plates are applied to the cylinder, slots in the cylinder, and clamps in said slots, said clamps adapted t0 engage with the recesses, substantially as set forth.

v 2. In a newspaper-printing machine, the combination, with .the printing-cylinder, of printing-plates 2 and 3, each having a square edge and a cut-out portion as 16, and each plate having its square edge in contact with the other, a slot in the cylinder and a clamp in said slot engaging with the cut-out p0rtion in each plate, substantially as set forth.

3. In a newspaper-printing machine, the combination, with the printing-cylinder, of stereotype printing-plates, as 2 and 3, arranged to print across two pages of a newspaper without forming a space between the pages, each of said plates having a square edge and a cut-out portion, as 16, means for engaging the cut-out portion of each plate and clamping the plates to, the cylinder; printing-plates, as 4 and 5, arranged to print two pages of a newspaper with a space between the pages, and means for clamping said latter plates to the cylinder, substantially as set forth.

4. In a newspaper-printing machine, the combination, with the printing-cylinder, of stereotype printing-plates mounted on the cylinder having a square edge and forming a continuous printing surface for printing across two pages of anewspaper, stereotypeplates mounted on the cylinder but separated from each other for printing two pages of a newspaper with a space between the pages, and means for securely locking the plates to the cylinder, comprising, clamping-blocks located in slots in the cylinder and engaging the plates and bars longitudinally disposed on the cylinder, substantially as set forth.

5. In a newspaper-printing machine, the combination, with the printing-cylinder, of printingeplates mounted thereon arranged to print the pages of a newspaper so that two pages may be printed without forming a blank space between the pages and the other pages printed with the usual space between the pages, said plates, for printing the pages without the intervening space, having a square edge and beveled edges and cut-out portions in the square edge, said plates, for printing the pages with the usual space between the pages, having beveled edges only; and means for securely locking the plates to the cylinder comprising, clamping-blocks engaging the said cut-ont portions, clamping-blocks engaging the beveled edges and bars longitudinally disposed on the cylinder, substantially as set forth.

6. In combination with a printing-cylinder, a set of printing-plates ed ge to edge and forming a continuous printing-surface, a second set of plates separated to form a marginal space between two pages, clampingblocks lfor said plates, and a plate-holding bar engaging all of said plates and secured to the cylinder, substantially as described.

In testimony whereof I have hereunto set my hand.

BENJAMIN H. JORDAN. Witnesses:

WM. J. BARTON, W. G. DooLrrTLn.

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