Improvements in Printers' Calendering Apparatus, and in the Application or Method of using the same.
Year: 1891

page_text: Date of Application, 28th Nov., 1891
Complete Specification Left, 27th Aug., 1892-Accepted, 8th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Printers' Calendering Apparatus, and in the
Application or Method of using the same.
We JAMES HODGSON of Theatre Street, Ulverston, in the County of Lancaster,
Colliery Agent, and JAMES BELL of Braddyll Place in the same Town Accountant
do hereby declare the nature of this invention to be as follows:-
Our invention relates to apparatus for use in calendering or pressing paper
which has been printed upon. Ordinarily screw presses have been used for the
purpose and in some few cases apparatus having in each case a pair of heated
cylinders has been used. In our improved apparatus two three or more small
pressing rollers act in concert with a larger bed roller which by preference is made
hollow and is heated by means of burning gas or mixture of gas and air or by
means of steam or heated air. The bearings of the pressing rollers are adjustable
toward and from the bed roller and are forced toward the axis of the bed roller by
means of screws or of springs or loaded levers. The rollers may be mounted in a
suitable frame so as to constitute a complete machine but we prefer to adapt the
apparatus for application directly upon or to the printing machine so that the
printed paper shall pass through the calendering machine on its way to the delivery
table or apparatus. We mount the rollers in a frame which is adapted to be bolted
or secured to the framing of the printing machine or to the delivery table or to the
table or platform which in some cases exists between the printing cylinder and the
delivery apparatus or we mount the frame of the calendering apparatus in slides so
that it can be adjusted in position upon the printing machine frame or table or be
moved out of the way when access has to be had to inking rollers or parts of the
printing machine. The bed roller may be revolved from any suitable part of the
printing machine or may be driven by a special belt from the driving shafting.
The rollers may be made of steel or of bronze or other suitable metal or material.
Dated this 27th day of November 1891.
DUTTON & FULTON,
1, St. James' Square, Manchester, Agents.
COMPLETE SPECIFICATION.
Improvements in Printers' Calendering Apparatus, and in the
Application or Method of using the same.
We JAMES HODGSON of Theatre Street, Ulverston, in the County of Lancaster,
Colliery Agent, and JAMES BELL of Braddyll Place, in the same Town,
Accountant, do hereby declare the nature of this invention and in what manner
the same is to be performed to be particularly described and ascertained in and
by the following statement and accompanying drawings :-
:-
Our invention relates to apparatus for use in calendering or pressing paper
which has been printed upon. Ordinarily screw presses have been used for the
purpose and in some few cases apparatus having in each case a pair of heated
cylinders has been used. In our improved apparatus two, three or more small
pressing rollers act in concert with a larger bed roller which by preference is made
hollow and is heated by means of burning gas or a mixture of gas and air or by
means of steam or heated air. The bearings of the pressing rollers are adjustable
toward and from the bed roller and are forced toward the axis of the bed roller by
means of screws or of springs or loaded rollers. The rollers may be mounted in a
suitable frame so as to constitute a complete machine but we prefer to adopt the

page_text: apparatus for application directly upon or to the printing machine so that the
printed paper shall pass through the calendering machine on its way to the delivery
table or apparatus.
The drawing which accompanies this Specification illustrates the calendering
apparatus which we use when carrying our invention into practical effect.
The sail apparatus has three rollers namely, a bed roller a and two pressing
rollers of smaller diameter than the bed roller. The end journals of the bed
roller revolve in fixed hearings formed or fitted in the two end standards c c.
The trunnions of the rollers have their bearings in steps d d which are fitted
to slide in slots formed in the standards in directions radial to the axis of the
bed roller. The said steps can be pressed toward the said axis by turning
adjusting screws ee which work in screw nuts formed on or fixed to cap
plates which are bolted to the tops of the standards. The bed roller is
hollow and if preferred the pressing rollers may also be hollow. The trunnions
of the bed roller are hollow and a burner which is fed with gas by means of a
pipe is passed through one of the trunnions into the hollow bed roller, the
burning gas, or mixture of gas and air keeping the roller hot. The pressure of
the rollers upon the printed material which is passed between the rollers is
regulated by means of the screws e e. The method of attaching the calendering
apparatus to or connecting it with the printing machines will vary according to
the description of printing machine to which the apparatus is applied. We propose
to adapt the framing of the calendering apparatus to be bolted or secured to the
framing of the printing machine or to the delivery table or to the table or platform
which in some cases exists between the printing cylinder and the delivery
apparatus or we mount the frame of the calendering apparatas in slides so that it
can be adjusted in position upon the printing machine frame or table or to be
moved out of the way when access has to be had to inking rollers or parts of the
printing machine. The bed roller may be revolved from any suitable part of the
printing machine or may be driven by a special belt from the driving shafting.
The rollers may be made of steel or of bronze or other suitable metal or material
and we may use more than two pressing rollers and may in some cases heat the
pressing rollers.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to he performed we declare that what we
claim is
1. The combination of parts constituting the apparatus substantially as and for
the purpose set forth and indicated.
2. In calendering apparatus for pressing or calendering printed paper the use of
a hollow bed roller with means for heating the same in combination with two or
more rollers adjustable toward and from the bed roller the paper passed through
receiving two or more successive calendering effects.
3. The calendering apparatus constructed and adapted to act substantially as set
forth combined with a paper printing machine of ordinary or suitable construction
so that the printed paper is calendered before delivery from the machine as set
forth.
Dated this 26th day of August 1892.
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.