USRE7919E - Improvement in machines for finishing printed paper - Google Patents

Description

2 Sheets-Sheet 1[ J. MORRIS. 4 Machine for Finishing Printed Paper. No. 7,919. 'ReissuedOct. 23,1877.

w 2 Sheets-Sheet 2.

. J. MORRIS. Machine for Finishing Printed Paper.

No. 7,919. Reissued Oct. 23, 1877.

UNITED STATES motion of the parts.

PATENT OFFICE- JAMES aromas,- or LIVERPOOL, ENGLAND.-

I MPROVEME NT INv MACHINES FOR FINISHING PRINTEDPAP ER.

specification forming part of Letters Patent No. 145,605, dated January 20,

1874 Reissue No. 7,919, dated October 23, 1877; application filed May 24, 1877.

To all whom it may concern:

Be it known that I, J AMES MORRIS, of Liverpool, in the county of Lancaster, England,

have mvented a new and useful Improvement in Machines for Finishing Printed Sheets of Paper, which improvement is fully set "forth in the following specification, reference being had to the accompanyingtdrawings.

.The objectof this invention is to provide a machine which shall be capable offinishing or giving a surface to printed sheets or lengths of paper or like material-that is to say, a machine in which printed sheets or lengths of paper or like material are passed through, between and in direct contact with heated rotating smooth rolls, called set-off rolls, whereby the ipk liable to become set off g 7 is removed from the surface of the said printed sheets of lengths of paper, or like material, and whereby the said printed sheets or lengths are caused to have a smooth and finished appearance.

Figure l-is an end view, one frame-plate being removed; Fig. 2, an end elevation; Fig. 3, an elevation of the delivery side, with the upper half of the casin g removed; and Fig. 4,

an enlarged view similar to Fig. 1,.showing two b'uffing-rolls in section.

Like letters denote the same parts in all the views, and the arrows denote the direction of 1, frame-work; 2, driving-gear; 3, smooth set-01f rolls, made hollow, and heated by steam or hot air, which passes into the rolls 3 by the pipes 4. The pipes4 enter the rolls through hollow trunniom provided with stuffing boxes and glands to make the joints tight. 5, weighted lever for regulating the pressure be-V tween the set-off rolls 3 6, perforated or open work containers for whiting or other powdery matter, which is caused to fall therefrom in a showe'J-r by means of a "ibrating motion given to such containers. By causing the said Whitingfi" or powderymatter to fall in a shower, the ink; set 011' on the rollers is uniformly coated there with. The containers are here shown operated, by means of levers 7, which rest on the teeth; of the wheels 2. It will be obvious that a ca are employed to hold the whiting or powdery matter in the containers, so as to insure that the whiting or powdery matter which falls from the containers shall be of suflicient fineness. 9, bufling-rolls made of disks of calico or like fabric, bound closely together by the nut-clamps 10. The said boiling rolls are rolls, and in the opposite direction thereto at the surfaces of contact. 1

of the bufling-rolls should'be greater than the surface-speeds of the set-off rolls.

11 are rotating brushes employed for cleaning and brushing ofl' the whiting or powdery matter from the bufling rolls 9. The said brushesare time torotateatagreatersuriace speed than the surface-speed of the buflingrolls. I prefer that they should rotate at the surfaces of contact in the opposite direction thereto.

12 are take-off rolls or brushes for carrying paper or like material passing through the machine, away from the set-ofl rolls 3 onto the delivery-board, or its equivalent. The said take-oil rolls or brushes are specially useful when highly-sized damp paper is passed between or being finished by the-rolls.

which lead to an exhaust-fan or its equivalent,

tact with, and adhere to, the surfaces of the eet-01f rolls 3, or pervade the atmosphere of the printing-office; 15, feeding and examin-- sing doors.

I claim- 1. The set-off rollers 3, capable of being heated, in combination with bufling-rollers 9, operating substantially as and for the purpose set forth.

heated,in combination with boiling-rollers 9 tially. as and for the purposes set forth.

in combinationwith bufling-rolls 9, cleaningtappet, or like means, may be employed to gfv the vibrating motion to the said containers.

brushes 11, and perforated or. open-work vi- The bags v8, made of textile or woven material,

caused to rotate in contact with the set-cit" I prefer that in all cases the surface-speeds I the leading edges of the sheets or lengths of 13' are casings, provided with pipes 14,

for the purpose of drawing away the dusty matter which would otherwise come in con- 1 2. The set-oif'rollers 3, capable of being I and cleaning-brushes operating substan 3. Set-ofl rollers 3, capable of being heated,

bratin g containers 6, carrying whiting 01' other powdery matter, all opein-rting substantially as and for the purpose set forth.

4. The process of preparing the set-ofi'roll for continuous use, consisting in showering whiting or other powdery matter on the surface of the roll, substantially as specified.

5. The combination, with an opelrwork vibratingcontainer, of a bag of textile 01 Woven fabric for containing the powdery substance used to coat the set-01f roll, substantially as specified.

6. In a machine for finishing printed sheets, the rotating bufiing 'oll', constructed of disks of calico or like fabric, bound closely together by nut-clamps, substantially as specified.

7. In combination with the set-off rolls, the

the combination of the setoti' rolis capable oi being heated, and adapted to remove the HUT-'- plus 111k from a printed sheet, relief niechan ism, substantially as described, for regulating the pressure of the rolls upon the printed surface, and devices for applying whiting or like substance to and removing the same, together with the ink, from the set-01f rolls, substantially as specified.

. JAMES MORRIS. \Vitnesses:

JAMES JOHNSON, W. B. JOHNSUN.

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