IMPROVEMENTS IN APPARATUS FOR DRYING STEREOTYPE MATRICES
Year: 1884

page_text: I GIUSEPPE PEPE of 55 Beresford Street, Walworth in the County of Surrey,
Stereotyper do hereby declare the nature of the said Invention for IMPROVEMENTS
IN APPARATUS FOR DRYING STEREOTYPE MATRICES to be as follows:
For this purpose I employ a hollow drum upon the exterior surface of which
I arrange a number of hinged clamping frames to hold the matrices in contact with
the drum.
The drum is made with projections or ribs to act in combination with hollows in
the clamping frames or vice versa.
The drum is mounted in a casing with capability of revolving upon a hollow axle
through which steam is introduced into the interior of the drum.
At some convenient part or parts of the apparatus I arrange a fire and I conduct
the products of combustion therefrom through a flue carried partially or entirely
around the exterior of the drum and near to the stereotype matrices clamped
thereon.
In the casing I preferably employ an outlet or outlets for the escape of moisture
driven off from the stereotype matrices.
The fire or fires may be employed to melt the metal required to produce the
stereotype and with this object I arrange one or more melting pots at some
convenient part of the apparatus.
In some cases I dispense with a special fire for the apparatus and pass through
the flue around or partly around the drum heated air or products of combustion
obtained from other sources.
The drum is provided with suitable means for drawing off or discharging the
condensed water.
By the use of my improved apparatus the production of stereotype matrices for
newspaper and other printing is very greatly facilitated and cheapened, as the time
employed in drying the same is greatly reduced whilst by the peculiar form and
action of the apparatus the buckling or unequal drying and shrinkage of the
matrices is prevented.
My Invention also enables me to retain in position in the matrices the pieces of
cardboard employed to retain the form of the white spaces so that when the
matrices are dried they require very little finishing. This effect is obtained by
clamping the matrices on to the revolving drum with their backs towards the
drum the pieces of cardboard in the white spaces being also in contact with
the drum and thereby held in position during the drying operation.
Tinted this 20th dow of Nov 1884
GUISEPPE PEPE.
By Harris & Mills,
23, Southampton Buildings,
Agents.

page_text: I Guiseppe PEPE of 55 Beresford Street, Walworth in the County of Surrey,
Stereotyper do hereby declare the nature of the said Invention for IMPROVEMENTS
IN APPARATUS FOR DRYING STEREOTYPE MATRICES and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement :-
For this purpose I employ a hollow drum, upon the exterior surface of which
I arrange a number of hinged clamping frames to hold the matrices in contact
with the drum.
The drum is made with projections or ribs to act in combination with hollows in
the clamping frames or vice versa.
The drum is mounted in a casing with capability of revolving upon a hollow
axle through which steam is introduced into the interior of the drum..
At some convenient part or parts of the apparatus I arrange a fire and I conduct
the products of combustion therefrom through a flue carried partially or entirely
around the exterior of the drum and near to the stereotype matrices clamped
thereon.
In the casing I preferably employ an outlet or outlets for the escape of moisture
driven off from the stereotype matrices.
The fire or fires may be employed to melt the metal required to produce the
stereotype and with this object I arrange one or more melting pots at some
convenient part of the apparatus.
In some cases I dispense with a special fire for the apparatus and pass through
the flue around or partly around the drum heated air or products of combustion
obtained from other sources.
The drum is provided with suitable means for drawing off or discharging the
water of condensation.
By the use of my improved apparatus the production of stereotype matrices for
newspaper and other printing is very greatly facilitated and cheapened as the time
employed in drying the same is greatly reduced whilst by the peculiar form and
action of the apparatus the buckling or unequal drying and shrinkage of the
matrices is prevented.
My invention also enables me to retain in position in the matrices the pieces of
cardboard employed to retain the form of the white spaces so that when the
matrices are dried they require only little finishing.
This effect is obtained by clamping the matrices on to the revolving drum with
their backs towards the drum the pieces of cardboard in the white spaces being
also in contact with the drum and thereby held in position during the drying
operation.
And in order that my said Invention may be more clearly understood and
readily carried into effect I will proceed aided by the accompanying drawings
more fully to describe the same.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is a vertical section and Figure 2 is a sectional plan of apparatus
constructed according to my Invention. Figures 3, 4 and 5 are detail views and
Figures 6 and 7 are views drawn to a larger scale showing a piece of cardboard in
position to form a white space.
The
a is a hollow drum upon the exterior surface of which I arranged a number of
hinged clamping frames b to hold the matrices in contact with the drum a.
drum a as shown at Figure 5 is formed with grooves or hollows a¹ to act in
combination with the sides of the clamping frames bor vice versa in order to
facilitate the holding of the matrices in position. The drum a is provided with
hollow necks or axes a² which are mounted in bearings c¹ on the sides of the
casing c and through stuffing boxes a³ on the ends of such necks or axes a² are
passed stationary pipes d, e, steam being admitted into the drum through the
pipe d and passing away therefrom through the pipe c.
At some convenient part or parts of the apparatus I arrange a fire place f and
I conduct the products of combustion from the fire therein through a flue g carried
partially around the exterior of the drum a as shown in the drawing (or it may
be entirely around the same) and near to the stereotype matrices clamped thereon.
In the casing c I arrange outlets c³ for the escape of moisture driven off from the
stereotype matrices and such moisture is circulated by means of wings a³ and is
drawn through such outlets c2 by the draft in the flue g.
The fire or fires may be employed to melt the metal required to produce the
stereotype and with this object I arrange one or more melting pots on the top
of the fire place for at some other convenient part of the apparatus.
The clamping frames b are preferably made as shown with outer bars b¹ the end
ones of which are connected together by cross bars b² such frames bare provided
with projections 3 which pass through eyes at and act as hinges whilst they are
also provided with catches b' which act in combination with eyes or hooks a³
to hold the said clamping frames and consequently the matrices firmly against
the cylinder a.
In some cases I dispense with a special fire for the apparatus and pass through
the flue g around or partly around the drum a heated air or products of combustion
from other sources.
The drum a in its interior is provided with cups a which act to lift the water
of condensation and on the same falling it is carried away by the steam, through
the trumpet shaped pipe e¹ fixed to the pipe e, other suitable means may however
be employed for carrying off or discharging the condensed water.
The upper part of the casing c is hinged so as to enable it to be thrown back
into the position shown by dotted lines in Figure 1 when it is desired to apply
the matrices to or remove them from the cylinder a; at other times such upper
hinged part of the casing b is placed in the position shown by the full lines.
The drum a is provided with a pulley a' by which, aided by a strap or band, it
may be rotated during the drying operation, whilst it is also provided with a hand
wheel as by which when not driven by the band it may be turned to the required
position for placing the matrices thereon or removeing the same therefrom.
At Figures 6 and 7 I have represented the method I prefer to adopt for retaining
the form of the white spaces, h represents the stereotype matrix which is clamped
with its back towards the drum a and i a piece of cardboard to form or retain a
white space which is placed between the matrix and the drum a and is preferably
connected to the back of the matrix and is thereby held in position during the
drying operation.
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
1. The general arrangement and combination of apparatus for drying stereotype
matrices substantially as herein shown and described.

page_text: 2. The rotating steam heated hollow drum a clamping frames 6 casing c,
outlets and flue g substantially as herein shown and described and for the
purpose stated and
3. The rotating drum a clamping frames b and casing c substantially as herein
shown and described and for the purpose stated.