Year: 1888

page_text: Date of Application, 12th Apr., 1888
Complete Left, 11th June, 1888
Complete Accepted, 13th July, 1888
I, FREDERICK MADELEY MOLE of 36, Cannon Street, Birmingham in the County
of Warwick, Printer, do hereby declare the nature of my said invention to be as
follows:-
This invention has for its object improvements in printing machines which are used
for letter press or lithographic work and has special reference to those machines in
which a cylinder upon which the sheets receiving the impressions is used and it
relates in particular to a special arrangement by which bronzing is accomplished in
an ordinary machine, that is, by either building the machine with the necessary
arrangement in the first place or by the addition of the necessary part or parts to any
ordinary machine of the type mentioned by which economy of plant is effected as
special bronzing machines are then unnecessary and much labour is saved as compared
with hand bronzing. My invention is as follows:-
I attach to the machine a loose blanket band or casing which wraps round or partly
round the cylinder in such a manner that a thickness of paper would just pass between
when upon the cylinder. This blanket or casing may be made of any suitable
material such for instance as Canvas with a lining of soft material such for instance
as velvet. I attach also to the cylinder a feeder or casing or tube containing the
bronzing powder so that as the cylinder turns the powder is distributed upon the
band.
The sheets to be bronzed are printed with the usual preparation so that the powder
will adhere and the sheets so printed are fed upon the cylinder with the print side
towards the blanket or casing so that as the cylinder turns the powder is transferred
to the damp impressions and at the same time the superfluous powder is dusted off
and the work thus very quickly finished at one process. It is of course a great
advantage to be able to quickly adapt this to any ordinary machine though as I have
before stated it may be built as a part of any new machine and yet be detachable
therefrom.
T: 11AL
11000
GEORGE BARKER,
77, Colore Row, Birmingham,
Agent for Applicant.

page_text: I, FREDERICK MADELEY MOLE of 36, Cannon Street, Birmingham in the County
of Warwick, Printer, do hereby declare the nature of my said invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
This invention has for its object improvements in printing machines which are used
for letter-press or lithographic work and has special reference to those machines in
which a cylinder upon which the sheets receiving the impressions is used and it relates
in particular to a special arrangement by which bronzing is accomplished in an
ordinary machine that is by either building the machine with the necessary arrange-
ment in the first place or by the addition of the necessary part or parts to an ordinary
machine of the type mentioned by which economy of plant is effected as special
bronzing machines are then unnecessary and much labour is saved as compared with
hand bronzing. My invention is as follows:-
I attach to the machine a loose blanket band or casing which wraps round or
partly round the cylinder in such a manner that a thickness of paper would just pass
between when upon the cylinder. This blanket or casing may be made of any suitable
material such for instance as canvass with a lining of soft material such for instance
as velvet. I attach also to the cylinder a feeder or casing or tube containing the
bronze powder so that as the cylinder turns the powder is distributed upon the band.
The sheets to be bronzed are printed with the usual preparation so that the powder
will adhere and the sheets so printed are fed upon the cylinder with the print side
toward the blanket or casing, so that as the cylinder turns the powder is transferred
to the damp impressions and at the same time the superfluous powder is dusted off
and the work thus very quickly finished at one process. It is of course a great
advantage to be able to quickly adapt this to any ordinary machine though as I have,
before stated it may be built as a part of any new machine and yet be detachable
therefrom.
In order that my invention may be clearly understood and more easily carried into
practice I have appended hereunto a double sized sheet of drawings upon which
I have shewn five Figures of various portions of machines to which my invention is
applied which will serve as examples so that practical men may be able to apply the
invention to many other kinds of machines not herein mentioned.
C.
Figure 1 is a broken off side elevation of a general letter press printing machine.
Figure 2 is a broken off end elevation shewing in detail one of the stands E to
which my blanket it attached.

page_text: Figure 3 is a larger sized section of the bronze feeding tube M.
Figure is a broken off elevation of the bronze feeding tube M.
Figure 5 is a side elevation shewing the application of my invention to a lithographic
machine.
I have shewn the invention applied to a general letter-press printing machine of
which B is the bed and C the framework A being the cylinder around which the
sheets are carried as is well understood in the printing process. My bronzing blanket
in this case is formed of the canvass which is fastened at one end on the bar k³
underneath the laying on board T from whence it is carried around the cylinder and
fastened to the cross bar e¹. This cross bar et is supported upon the pillars E which
are secured by the bolts e³ to the roller forks F. This cross bar e is kept up to
tension by means of the coil spring e² of which there is one upon each pillar but the
tension of the canvass may be still further increased or modified by the screw nut e¹
which is capable of elevating the bar e. Upon this canvass band I place the mill
boarding or stiff medium K which maintains a certain amount of stiffness and upon
the mill boarding or other stiff medium I put the soft layer of flannel or other suitable
material the blanket finishing at loosely upon the cylinder. The bronze feeding
tube M may be mounted in the gap. P of the cylinder A and when constructed as
shewn at Figures 3 & 4 is capable of being telescoped sufficiently to go between the
end plates and then expand into the holes at the ends of the cylinder.
This bronze feeding tube is composed of the inner tube M having the small per-
forations running along its entire length and of the outer band or casing m' which
is secured to the tube M at the ends by the screws m. The end m² may be solid
with the tube M or fastened therein, the other end m³ is capable of adjustment upon
a screw thread by a suitable key operating in the holes m and locked in its position
by the lock nut m³ so that when the end m³ is contracted or screwed in towards the
centre this feeding tube may be put between the ends of the cylinder and then
expanded out into the holes so as to become practically a part of the cylinder. The
operation of bronzing is then as follows:-
The cylinder A turns in the direction of the arrow and the sheet to be bronzed is
upon the laying-on-board T with the wet or marked portions to be bronzed down-
wards. When the cylinder has passed round in the direction of the arrow sufficiently
to bring the bronzing tube down to the blanket, a certain amount of bronzing material
has gravitated from the tube M through the holes m on to the outer casing m¹ and
is delivered upon the blanket through the opening m³. As the cylinder revolves
the grippers R take hold of the sheet on the laying on board carrying it round
immediately after the distribution of the bronzing material from the tube M and thus
all the moist surface upon the paper is covered with the bronzing or other material
and beautifully distributed over the whole surface in an automatic manner. The loose
piece of blanket serves the purpose of ensuring both the removal of any superfluous
bronze, and also of placing a small portion of bronze dust in any parts or depressions
that may not have been touched while passing over the body of the blanket.
In the case of lithographic machines or at any rate such machines where the
laying-on-board T is placed at the top of the machine as shewn at Figure 5 the
blanket may be supported upon its mill-boarding or other stiff medium K and upon
the canvass band which in this case may be carried round and supported upon the
rollers or other supports and in such a manner that both ends of the blanket are
carried a certain distance up the side of the cylinder A which is an advantage in
keeping the bronzing dust upon the blanket.
The supports and k may be secured to any stationary or suitable portion of the
printing machine but I have shown this modification as an example of the way in
which my invention may be applied to this and various other kinds of printing
machines of which there are a very large number and the application thereof in its
smaller details such as the design of the supports E will naturally vary according to
the design and construction of the machine but there will be no difficulty in this when
the principle herein set forth is clearly understood.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:
First-The improvements in printing machines of the bronzing blanket or band
carried round an ordinary printing cylinder A upon which the bronzing material is
distributed and from which it is transferred to the sheets substantially as and for the
purpose herein set forth and shewn upon the drawings.
Second-In improvements in printing machines the bronze feed substantially as
herein set forth and shewn upon the drawings.
11
كيم
1000
GEORGE BARKER,
77, Colmore Row, Birmingham,
Agent for Applicant.