IMPROVEMENTS IN AND APPLICABLE TO PRINTING MACHINES TO PREVENT CREASING OF THE PAPER BEFORE AND DURING PRINTING
Year: 1884

page_text: I. GEORGE ASHLEY WILSON of Broad Green near Liverpool in the County of
Lancaster, Engineer, do hereby declare the nature of my said invention for
"IMPROVEMENTS IN AND APPLICABLE TO PRINTING MACHINES TO PREVENT
CREASING OF THE PAPER BEFORE AND DURING PRINTING" to be as follows:-
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This invention relates to machines in which a web or sheets of paper is or are
printed by passing between a type or stereotype cylinder and a blanket or
impression cylinder and the object is to prevent the paper from becoming creased.
before it reaches the type or stereotype and impression cylinders when the web of
paper is cut into sheets of the required size whilst passing from the roll to the
printing cylinders, a further object is to prevent the paper from being creased by
the action of the printing and impression cylinders more particularly when the
paper is printed on both sides by passing between two pairs of such cylinders.
The invention consists first. In employing a smooth drum provided with tapes
so arranged that the web of paper after it is cut is carried on the surface of the said
drum to the printing cylinders and is held in flat and smooth contact
smooth contact with the said
drum by means of the tapes above mentioned.
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Second. In making the blanket of impression cylinders with a recess or recesses
extending around the circumference opposite to that portion of the type or
stereotype cylinder which forms, the interior margin or margins of the letter press.
JE

page_text: CORTELE SPORTIVATI
I GEORGE ASHLEY WILSON of Broad Green near Liverpool in the County of
Lancaster, Engineer, do hereby declare the nature of the said invention for
IMPROVEMENTS IN AND APPLICABLE TO PRINTING MACHINES TO PREVENT
CREASING OF THE PAPER BEFORE AND DURING PRINTING, and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
The invention relates. to machines in which a web or sheets of paper is or are
printed by passing between a type or stereotype cylinder and a blanket or
impression cylinder and the object is to prevent the paper from becoming creased
before it reaches the type or stereotype and impression cylinders when the web of
paper is cut into sheets of the required size whilst passing from the roll to the
printing cylinders; a further object is to prevent the paper from being creased by
the action of the printing and impression cylinders more particularly when the
paper is printed on both sides by passing between two pairs of such cylinders.
.
The invention.consists. First In employing a smooth drum provided with tapes
so arranged that the web of paper after it is cut is carried on the surface of the said
drum to the printing cylinders and is held in flat and smooth contact with the said
drum by means of the tapes above mentioned.
Second. In making the blanket or impression cylinders with a recess or recesses
extending around the circumference opposite to that portion of the type or
stereotype cylinder which forms the interior margin or margins of the letter press.
DESCRIPTION OF THE DRAWINGS.-
Fig 1 is a diagram illustrating a method of carrying the first part of my
improvements into effect, a web of paper from roll, b b₁ drawing rollers, c knife
roller. de gear wheels carried by the arm f on the shaft g. of the knife roller.
The wheel & gears with a wheel h on the shaft g and the wheel e gears with the
wheels d'and b. By varying the position of the arm f the wheels b and e or both
may be altered so that the relative surface speeds of the drawing and knife rollers
may be varied and the desired lengths of paper be delivered to c during each
revolution. The arm and change wheels are of the usual construction for obtaining
i drum
varying speeds.and are manipulated in the ordinary well known manner.
with grooves for the knife on c. j printing cylinders, k blanket or impression
cylinders, elastic tapes, m leading tapes. These tapes pass round rollers as is
well known so as to conduct the paper in the path shown by the arrows which also
show the direction of motion of the rollers and wheels. The paper when passing
from the drawing rollers to the knife roller and over the drum i is kept stretched
by the action of the elastic tapes and drum which travel at a greater speed than
that at which the paper is supplied.
Fig 2 is an elevation of a blanket or impression
n. recess opposite the interior margin of the paper.
cylinder under my invention,
7

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is
First. The combination of the smooth drum i and tapes with the cutting
roller c and printing and impression cylinders.
Second. The combination with printing cylinders of impression cylinders having
recesses.
J. T. KING,
Agent for the Applicant.