Improvements in Means or Apparatus for Surface Coating Materials in Web Form for Printing upon and for other uses.
Year: 1897

page_text: Date of Application, 8th Dec., 1897
Complete Specification Left, 15th Mar., 1898-Accepted, 16th Apr., 1898
Improvements in Means or Apparatus for Surface Coating Materials
in Web Form for Printing upon and for other uses.
I, CHARLES MINOT GAGE, of Pepperell, County of Middlesex, State of Massa-
chusetts, one of the United States of America, but at present residing at the Hotel
Metropole, Northumberland Avenue, in the County of London, Manufacturer,
do hereby declare the nature of this invention to be as follows: -
This invention relates to certain improvements in means, or apparatus by which
paper, or other fabric, in web form, capable of use for various purposes; such as
printing, especially high class art or illustrative work, can be coated on the
surface, on both sides of the paper, or other fabric and then these coated surfaces
dried, before the fabric is finally delivered from the machine.
The improvements are particularly applicable to the class of machinery described
in the Specification of Letters Patent No. 213 dated January 4th 1897 granted to
Alfred George Brookes on a communication from the present applicant.
In the machine illustrated in the said specification the paper, or other material
that has been coated on say both sides is passed over certain rollers and is drawn
upon by a distant feed means, to draw it forward after the coated web has become
sufficiently dried to bear the contact without injury to the coats of applied matter.
To effect this drying of the surface-coatings currents of heated air are applied
above and below on the surfaces of the web, whilst it is still in its wet, damp or
tacky condition and this is effected by a series of blasts from a suitable blowing,
or air forcing means by the intervention of a suitable main supply pipe or trunk
which may extend longitudinally above the rolls, and a number of distributing
pipes from this main one terminating in nozzles are arranged so as to play upon
the upper
and under surfaces of the web respectively.
It is convenient to so arrange that they deliver the air, or other suitable drying
medium so that it will impinge against the web just in advance of the rolls the
blast having appropriate strength of jet to maintain the web substantially floating
or at most, lightly touching the rolls, a thin film of air being substantially main-
tained interposed between each roll and the web to reduce the friction.
To enable the currents of air to be adjusted, or modified in the operation I
provide the following devices:-
To the upper lip of the orifice of each nozzle or outlet for the air on the upper
side of the travelling web of damp coated paper, or material, there is hinged a
plate, or valve, which is preferably a sheet of metal reaching across the said lip.
This plate is at its free edge suspended adjustably by means of a wire, cord or
chain, or operated by a lever or mechanism, so that the angle at which it shall
be held for the outflowing current of warm air to strike against it, and cause such
air to be deflected, may be varied or regulated. The action of the air issuing from
these upper nozzles may be so influenced by variations of angle of these valves, or
plates that the web can be acted upon with considerable variation of lifting

page_text: pressure. The current of warmed air that normally flows through the supply and
distributing channels to the lower series of nozzles, or to some of them may, at
will, be cut off, and yet by proper adjustment of the angles of inclination of the
outlet plates the current issuing from the nozzles may be caused to lift, or to keep
the web of coated paper, or material, from contact or more than nominal contact 5
with the rolls. Or, the plates may be turned back and left inoperative.
Dated the 8th day of December 1897.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.
Improvements in Means or Apparatus for Surface Coating Materials
in Web Form for Printing upon and for other uses.
j
I, CHARLES MINOT GAGE, of Pepperell, County of Middlesex, State of Massa-
chusetts, one of the United States of America, but at present residing at the Hotel
Metropole, Northumberland Avenue, in the County of London, Manufacturer,
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: -
Jay
This invention relates to certain improvements in means or apparatus by which
paper, or other fabric, in web form capable of use for various purposes; such as
printing, especially high class art or illustrative work, can be coated on the
surface, on both sides of the paper, or other fabric and then these coated surfaces
dried, before the fabric is finally delivered from the machine.
The improvements are particularly applicable to the class of machinery described
in the Specification of Letters Patent No. 213 dated January 4th 1897 granted to
Alfred George Brookes on a communication from the present applicant.
In the machine illustrated in the said specification the paper or other material
that has been coated on say both sides is passed over certain rollers and is drawn
upon by a distant feed means, to draw it forward after the coated web has become
sufficiently dried to bear the contact without injury to the coats of applied matter.
To effect this drying of the surface-coatings currents of heated air are applied
above and below on the surfaces of the web, whilst it is still in its wet, damp or
tacky condition and this is effected by a series of blasts from a suitable blowing,
or air forcing means by the intervention of a suitable main supply pipe or trunk
which may extend longitudinally above the rolls, and a number of distributing a
pipes from the main one terminating in nozzles are arranged so as to play upon
the upper and under surfaces of the web respectively.
It is convenient to so arrange that they deliver the air, or other suitable drying
medium so that it will impinge against the web just in advance of the rolls the
blast having appropriate strength of jet to maintain the web substantially floating 4
or at most, lightly, touching the rolls, a thin film of air being substantially main-
tained interposed between each roll and the web to reduce the friction.
To enable the currents of air to be adjusted, or modified in the operation I
provide the following devices:
To the upper lip of the orifice of each nozzle or outlet for the air on the upper
side of the travelling web of damp coated paper, or material, there is hinged a
plate, or valve, which is preferably a sheet of metal reaching across the said lip.
This plate is at its free edge suspended adjustably by means of a wire, cord or
chain, or operated by a lever or mechanism, so that the angle at which it shall

page_text: be held for the outflowing current of warm air to strike against it, and cause such
air to be deflected, may be varied or regulated. The action of the air issuing from
these upper nozzles may be so influenced by variations of angle of these valves, or
plates that the web can be acted upon with considerable variation of lifting
pressure. The current of warmed air that normally flows through the supply and
distributing channels to the lower series of nozzles, or to some of them may, at
will, be cut off, and yet by proper adjustment of the angles of inclination of the
outlet plates the current issuing from the nozzles may be caused to lift, or to keep
the web of coated paper, or material, from contact or more than nominal contact
with the rolls. Or, the plates may be turned back and left inoperative.
DESCRIPTION OF THE DRAWINGS.
Referring to Fig. 1 m shows the upper drying nozzle, for delivering the blast
of warm air, supplied by channel m*, on the upper side surface of the sheet of
material and n the corresponding lower side drying nozzle, substantially in
accordance with the aforesaid specification.
The upper lip of the orifice m10 of this nozzle m has hinged to it the plate m¹
which is preferably a sheet of metal reaching across the said lip and hinged thereto
at m².
This plate m¹ is at its free edge m³ suspended by a wire cord, or chain m* so as
to be capable of regulation as to the angle at which the outflowing current of
warm air shall strike, or be influenced by it.
The current of warmed air that normally passes through the channel n* to the
nozzle n may at will be shut off and yet by proper adjustment of the angle of
inclination of the plate m¹ the current issuant from the nozzle m may be caused
to lift or keep the sheet of coated paper from contact with the roller o.
Or the plate m¹ may be turned back as indicated by the dotted line m³ out of
n10 is the orifice of nozzle n, and dotted line w indicates line of paper.
use.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is:-
The construction and arrangement and use of the plate m³ in conjunction with
the nozzle m and its use substantially as and for the purpose set forth with
reference to the drawings.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London, Agents for the Applicant.