US815857A - Printing-machine. - Google Patents

Description

PATENTED MAR. 20, 1906. T. M. NORTH. PRINTING MAOHINE.- APPLICATION FILED JUNE 23, 1906.

" (m cJkwu au LL65.

' I UNITED srarns rENT OFFICE.

THOMAS M. NORTH, OF LONDON, ENGLAND, ASSIGNOR TO LINOTYPE AND MACHINERY LIMITED,

OF LONDON, ENGLAN I).

PRlNTlNG-MACHlNE- Specification of Letters Patent.

Patented March 20, 1906.

nc ion filed June 23,1905. Serial No. 266,610.

To all [IF/Mllll/ 2'15 'nm (fIHl/(Xfl'Hh' v Be it known that I, THOMAS MERRIFIELD NORTH, of 188 and 189 Fleet street, London, England, have invented new anduseful ImpIOVGII'lGYltS in Printing-Machines; and I do hereby declare the following to be a full,

clear, and exact descri tion of the invention,

suchfas will enable (it iers skilled in the art to which it appertain's to make and use the chines, particularly those of the type f as almn nlum {1 toprovide means whereby the printer is same.

This invention relates to printing; ma-

nown W rotar machines, because lz mc'e: )f the printer to keep them in t printmg eondit1on; and the object of l )able of effecting both this surveillance lxtgei jat tliat'end) tha's been necessary for the 'printer to walkf rom the cylinder to the di' livery boardto ascertain by'inspection of- ";and that of the sheets as they are printed ron' oneiand the same position, this r05 isi ,n'ablmgh mbysnchinspect on o the a s eets toreadilyas'certa-in thecondition Ithe"lprignting plate and' how it .is doing its w rkfl g ll'erc ofore in consequence of the-ellicient inspection of the ham-cylinder being possi- 1 ble only from the rear side of it at one end ofitl'iefn'iachine.andthat of the printed Isheet ng'possibleo'nly at the other end of the line (because, the delivery has always the printed sheet thereon the working condi s N owthe present invention obviates the ne-' "tion of theprinting surface and then to walk {back aga n to the cylinder to remedy an deiectsthere on the existence oifiwhich rave been disclosed by the last-named inspection.

'ccssity ofthe printer walking from the cylinder tothedelivery-board and back again, because it places the delivery-board at the rear side of the form-cylimlcr and so near to it that the printer can inspect them both without any appreciable change of position, for according to the said invention he is-now able tosland with one shoulder turned to the printiiigecylinder and the other turned to the delivery-table, whereby by merely turning his head 'l'rom left to right and right to left he can with case make thc dcsired inspection.

The acclnnpanying drawing, which is to printingplates em'and the constant- ,sjui c1 fperfec be taken as part of this specification and read therewith, is a side elevation of aprintingmachine arranged according to the present- 5 5 invention, the sheet-delivery mechanism being represented in dotted lines.' n carrying the said invention into effect a multiple-revolution impression-cylinder 1 is employed, because this type of cylinder con tributes to the maintenance of the printedside-up position of'tlic sheet and to the prevention of that face of the sheet coming into contact with an member of the delivery mechanism. ThlS cylinder, as ordinarily, receives the sheets to be, printed i'rom the feed board 2 and is su'pported'in adjustable bearin'gsB, mounted in the side frames 4 of V the machine, only one of which frames is represented in the drawing, The impressioncylinder 1 cooperates with the form or printingcylinderfi, which "is also, as ordinarily, ifmounted in the frainesx i; and provided with the necessary inking mechanism 6 and (lamping mechanism 7.- The sheets afterlre'ceiving their; impression are taken from the impression-cylinder 1 by. a guide 8, which conducts them to the downwardly-inclined carrier-tapes9, which in turn deliver them to ano therguide 10, whence they pass to the dclivery-chains or equivalent 11. The carriertapes 9 travel around'two cylinders 12 13, the latter of which is positively rotated by gearing with a spur-wheel 14, which also is in operative gear with wheels or pulleys 15, (only one oi" which is indicated in the dra'wing,) about which the forward parts of the deliv erychains 11 pass. From these forward parts the chains 11 extend rearward below a platform 16 on which the printer is stationed, and at the rear of this platform the chains are guided upward by guides 17, whence they pass over rollers 18, situated at the front of the delivery-board 19, and thence rearward over the said delivery-board to rollers 20. From these rollers 20 the deliverychains 11 pass downward to rollers 31, from which they pass in a forward direction to the bel'ore-mentioned wheels or pulleys 15. The chains 11 are provided with any of the" well known arrangements of grippers, these being l adapted to grip the sheets as the latterpass over or are leaving the guide 10 andto relcasethe said sheets when they are over the deliver -board 19 to allow them to drop, printe sideup, onto the said board. These rippers are not represented in the drawing, because they constitute no part of the present invention.

It is to be observed that by the foregoing arrangement the printed-side-up delivery is effected without the use of any transferring or reversing cylinder or any similar devices capable of touching the printed sides of the sheets.

The height of'the platform 16 relatively to that of the form-cylinder 5 is preferably practically the same as that of the floor to the form-cylinder in existing machines, this disosition being preferred, so as not to interfbre with the working position of the printer as inspector and toucher-up of the printingsurface. The distance of the delivery-board 19 from the form-cylinder 5 and the height of it above the platform 16 are such that the printer has room enough to do his work on the printing-surface, as well as examine the printed sheets as they are delivered onto the board 19. It is proposed to provide a seat upon the platform 16, so that the printer when seated thereon and facing toward one or other side of the machine may by merely turning his head to right or left of him readily inspect the cylinder 5, on the one hand, and the topmost of the printed sheets 22, on the other hand. At the back of the platformis provided a guard or screen 23 to prevent the printer from coming into accidental contact with the sheet-delivery mechanism or the sheets being delivered.

Itwill be readily understood that by suitably arrangin the form-cylinder 5 and the delivery-boar '19 as regards their respective heights from the iloor and arranging the delivery-chains to dip down beneath the floor between the said form-cylinder and deliveryboard a special platform, such as that shown in the drawing, need not be provided, the portion of the floor between the form-cylinder and delivery-board in such an arrangement serving to fulfil all the necessary functions of the said platform. For this reason the term stand as hereinafter employed is intended to include any such platform or device situated between the form-cylinder and the delivery-board as will enable the printer when stationed thereon to freel inspect the form and printed sheets, as aforesaid, without moving from one part of the machine to another.

Subject to the sheet delivery mechanism being such as to conduct the printed sheets beneath the stand situated between the formcylinder and the delivery-board at which the printer is stationed and to deliver the sheets on the delivery-board printed side up, any

construction of delivry mechanism other than that herein previously described may be employed.

I claim 1. In a printing-machine, the combination of a form-cylinder, a feed-board and deliveryboard at respectively opposite sides of the said cylinder, and a stand for the printer, between the form-cylinder and delivery-board.

2. In a printing-machine, the combination of a form-cylinder, a feed-board and deliveryboard at respectively 0 posite sides of the said cylinder, a stand or the printer, between the form-cylinder and delivery-board, and sheet-delivery mechanism ada ted to deliver the printed sheets, printed side up, onto the delivery-board.

3. In a printingmachine, the combination of cooperating form and impression cylinders, a delivery-board, a stand for the printer, between the delivery-board and the form and impression cylinders, and sheet-delivery mechanism adapted to conduct the printed sheets from the impression-cylinder, beneath the stand, and deliver them, printed side up, on the delivery-board.

4. In a printing-machine, the combination of an im ression-cylinder, a delivery-board, a stand or the printer between the im ression-cylinder and delivery-board, and s eetdelivery mechanism adapted to conduct the printed sheets from the impression-cylimler beneath the stand and deliver them printed side u on the delivery-board.

5. fir a printing-machine, the combination of a form-cylinder, a delivery-board and a stand for the rinter between the said cylinder and bear the respective heights of the cylinder, board and stand being such that when the printer is stationed on the stand he can, without shifting his position, readily inspect the form and the printed sheets.

6. In a printing-machine, the combination of a form-cylinder, a feed-board and deliveryboard at respectively opposite sides of the said cylinder, a stand for the printer, between the form-cylinder and delivery-board, and sheet-delivery mechanism adapted to conduct the printed sheets beneath the stand, and deliver them, printed side up, on the delivery-board.

7. In a printing-machine, the combination of cooperating form and impression cylinders, a feed-board and delivery-board at respectively opposite sides of the said cylinders, a stand for the printer, between the deliveryboard and the cylinders, and sheet-delivery mechanism adapted to conduct the printed sheets from the cylinders, beneath the stand, and deliver them, printed side up, on the de livery-board.

8. In a printing-machine the combination of coperating form-and impression cylinders, and raise them above, and drop them onto, a delivery-board, a stand for the printer, bethe delivery-board.

tween the delivery-board and the form and In witness whereof I have hereunto set my impression cylinders, sheet-carriers adapted hand in the presence of two witnesses.

to conduct the printed sheets from the form- THOMAS M. NORTH.

7 cylinder to below the stand, and delivery de- Witnesses:

vices adapted to take the sheets from the WARWICK THY. WILLIAMS, carrier-tapes, conduct them below the stand WM. SUTHERLAND ROBINSON.

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