IMPROVEMENTS IN APPARATUS FOR VARNISHING OR OTHERWISE SIMILARLY TREATING SHEETS OF PAPER CLOTH OR ANALOGOUS MATERIALS
Year: 1882

page_text: LETTERS PATENT to William Righter Comings of Upper Thames Street in
the City of London for an Invention of IMPROVEMENTS IN APPARATUS FOR
VARNISHING OR OTHERWISE SIMILARLY TREATING SHEETS OF PAPER CLOTH
OR ANALOGOUS MATERIALS
"
PROVISIONAL SPECIFICATION left by the said William Righter Comings
at the Office of the Commissioners of Patents on the 14th July 1882.
WILLIAM RIGHTER COMINGS of Upper Thames Street in the City of London,
IMPROVEMENTS IN APPARATUS ADAPTED FOR VARNISHING OR OTHERWISE SIMILARLY
TREATING SHEETS OF PAPER, CLOTH OR ANALAGOUS MATERIALS
23
This Invention relates to that class of apparatus which is employed for gumming
sizing, varnishing or otherwise similarly treating sheets of paper cloth or analagous
material
The invention consists in the arrangement and combination of parts hereinafter
set forth
The varnishing or otherwise treating the sheets is accomplished by causing said
sheets to be automatically fed by means of suitable mechanism under or against a
varnish roller or brush, after which they are removed by corresponding apparatus
on the other side of the machine. When no sheet or material is passing, the
varnishing roller or brush is held away or separated from the feed rollers or bands
by means of a lever or cam and spring device, or the varnishing roller may be
stopped in order to prevent the bands or feed rollers from becoming covered with
varnish. Said varnish roller may advantageously be supplied with the desired
substance by means of intermediate rollers or brushes between it and the source of
supply as in this manner a more even and reliable coating is obtained
The feed table is supplied with longitudinal slots for the sheets to be coated and
for the feed belts when such are employed The table may be supplied with a
series of slots by which the length of the feed belts may be varied

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Righter Comings in the Great Seal Patent Office on the
13th January 1883.
WILLIAM RIGHTER COMINGS of Upper Thames Street, in the City of London
IMPROVEMENTS IN APPARATUS ADAPTED FOR VARNISHING OR OTHERWISE SIMILARLY
TREATING SHEETS OF PAPER, CLOTH, OR ANALAGOUS MATERIALS
This Invention relates to that class of apparatus which is employed for gumming,
sizing, varnishing or otherwise similarly treating sheets of paper, cloth, or
analagous material
The invention consists in the arrangement and combination of parts, hereinafter
set forth and illustrated in the accompanying drawings, which form part of this
specification, and in which Fig 1 represents a side elevation, and
Fig 2 a plan of the apparatus.
The varnishing or otherwise treating the sheets is accomplished by causing said
sheets to be automatically fed by means of suitable mechanism, such as the endless
apron. a. provided with prickers or catches a' and endless belts a³. a³; under or
against a varnish roller or brush. b. after which they are removed by corresponding
apparatus at, on the other side of the machine
When no sheet or material is passing, the varnishing roller or brush b. may be
held away or separated from the feed rollers or bands. a³. by means of a lever c. or
cam and spring device, or the varnishing roller may be stopped in order to prevent
the bands or feed rollers from becoming covered with varnish Said varnish roller
may advantageously be supplied with the desired substance by means of inter-
mediate rollers 6' 6, or brushes, between it and the source of supply d, as in this
manner a more even and reliable coating is obtained The feed table A may be
supplied with longitudinal slots or guides e. e. for the sheets to be coated, and for
the feed belts when such are employed The feed table A is supplied with a series
of slots, or preferably with slots e¹ e running nearly from end to end of the table,
so that the position of the feed may be varied and adjusted; said feed may consist
of one or more endless aprons a. carried on rollers in moveable frames ff which
slide in slots e¹ e', in frame A and are held in the desired position by means of
screw bolts f'f¹. The aprons a. are provided with prickers or fingers a¹ in order
that the material may be uniformly fed without slipping, while frame fis
provided with adjustable arms f* f which pass under the material being fed and
bend back the prickers or catches a¹ a¹ before they begin to descend around the
roller, thus all chance of entangling or drawing down the material is obviated
When such material is in sheets it is placed on the hinged sliding table B from
whence it is fed, sheet by sheet onto apron a. by the operator, care being always
taken that the sheet next in order shall slightly overlap the preceding sheet in
order that the varnish or other substance on roller b. may be kept from the belt a³;
roller 6 is made in sections so that any desired width of varnishing surface may be
presented to the material treated Rollers b'. and 6* may be made in the same
manner, while the axles may be square inside of the bearings, so that the sections
of rolls can be slid on or off
If the material to be treated is in rolls, table B may be turned back on its hinge
and said rolls mounted in suitable removeable standards B¹ the material being in
this case passed under suitable guide rollers b³ and drawn through the machine by
the friction between rollers b and G¹ and between rollers h. and h³, while too rapid
unwinding from the roll may be prevented by means of a spring or other suitable
brake The rollers b. b¹. 6 are adjustably carried in a frame i. pivoted upon
suitable bosses through which the shaft of roller b' passes. The axle of said roller

page_text: being the only one of the varnishing system which is carried by the main frame
The frame i. is preferably so weighted as to hold roller 63 down, and roller b. up,
except when lever c is depressed and held by suitable catches, springs or weights
In this manner any unevenness in the thickness of the material treated will be
compensated for Motion is imparted to rollers 63 and 6 from 6¹ by means of cogs
as shown, while roller b¹ is itself driven by positive gearing ; from the main driving
roller G', said driving roller also carries the preferably link gearing through which
one or both of the feed rollers G³. G³ are positively driven The manner of driving
rolls h. h. h. h. and h will be readily understood from the drawing while the
entire apparatus is driven from the main driving shaft G
Having thus described the nature of my invention, and how the same may be
practically employed. What I claim and desire to secure by Letters Patent is
•
1* In apparatus adapted for varnishing or otherwise similarly treating paper,
cloth or analogous materials, the pivoted frame i. i with its connected parts, all
substantially as and for the purposes set forth.
2nd In the automatic feed system of apparatus adapted for varnishing or other-
wise similarly treating paper, cloth, or analogous materials, the moveable frame ff
with its rollers and apron, substantially as described and for the purposes set forth.
3rd In apparatus adapted for varnishing or otherwise similarly treating paper,
cloth, or analogous materials, the combined means hereinbefore described of
automatically feeding the paper, cloth or analogous materials and delivering the
same after treatment, substantially as and for the purposes set forth
4th And finally, the general arrangement and combination of parts forming the
improvements in apparatus adapted for varnishing or otherwise similarly treating
sheets of paper, cloth or analogous materials, all substantially as and for the purposes
set forth
In witness whereof I the said William Righter Comings have hereunto set my
hand and seal this twelfth day of January in the year of Our Lord, one
Signed, sealed and delivered
in the presence of
PHILIP M. JUSTICE
Patent Agent,
53 Chancery Lane
London
WR COMINGS (L.S.)