IMPROVEMENTS IN OR APPLICABLE TO TYPE-CASTING MACHINES
Year: 1884

page_text: I OLIVER TITCHENER, of 3, Wilmington Street, Clerkenwell in the county of
Middlesex, Type Founders' Tool Maker do hereby declare the nature of the said
invention for "IMPROVEMENTS IN OR APPLICABLE TO TYPE-CASTING MACHINES" to
be as follows:-
This invention relates to improvements in or applicable to type-casting machines
the object of the invention being to provide improved means for casting hollow
quods and quotations and method of delivering the matrix when casting-type.
In carrying out my invention, to the bottom mould block of an ordinary type-
casting machine I fix a bracket in which slides a rod carrying at its inner end the
core to form the hollow of the quod or quotation or the matrix of the type to be
cast, as the case may be, the said core or the matrix is fixed in a box or holder in
such a manner as to allow of the core when casting quods or quotations being
adjusted vertically so as to set the core to the centre of the mould; the said rod is
provided with suitable means such as a double knuckle joint to allow of the core or
the matrix being set flat to the face of the mould by a spring, one end of which is
fixed to the bracket and the other end bears against the core; the said knuckle
joint when the adjustment has been effected is rigidly fixed by means of set screws.
A lever baving its fulcrum in a suitable position on the bracket is caused to operate
the sliding rod (so as to withdraw the core or the matrix from the mould) by
means of a cam fixed on the driving shaft of the machine and striking or bearing
against the tail end of the said lever. An adjustable spiral spring attached to the
tail end of the lever and to the table of the machine serves to keep the core or the
matrix firmly pressed to the mould when the said lever is relieved from the action
of the cam and to keep the lever against the cam.
In an apparatus or attachment of this construction the core to suit the length of
quod or quotation or the matrix for the type which it is required to cast is adjusted
and fixed in its box as hereinbefore described; the set screws of the knuckle joint
are loosened and the spring on the bracket placed in position against the core; the
said set screws are then tightened and the apparatus or attachment will be ready
for casting. The driving shaft of the machine being now rotated the metal will be
forced into the mould in the usual manner and the herein before described cam on
the shaft will in rotating cause the lever to withdraw the core and the mould being
opened the quod or quotation or the type will fall from the mould in the usual

page_text: manner. As the shaft completes its rotation the core or the matrix will be carried
back into position for casting another quod or quotation or type and so on.
In the case of casting type I prefer to use the ordinary lining bar and I substitute
a lever of suitable shape for that used for casting quods or quotations. The
delivery of the matrix when casting type is by these improvements effected
horizontally instead of at an angle, whereby liability of the type to be torn up is
prevented when casting type which does not require rubbing. The said lining bar
is not required when casting quods or quotations.
"
I OLIVER TITCHENER of 3 Wilmington Street Clerkenwell in the County of
Middlesex Type Founders' tool maker, do hereby declare the nature of my said
invention for "JMPROVEMENTS IN OR APPLICABLE TO TYPE-CASTING MACHINES,"
and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
This invention relates to improvements in or applicable to type-casting machines
the object of the invention being to provide improved means for casting hollow
quods and quotations and method of delivering the matrix when casting type.
In carrying out my invention, to the bottom mould block of an ordinary type-
casting machine I fix a bracket in which slides a rod carrying at its inner end the
core to form the hollow of the quod or quotation or the inatrix of the type to be
cast, as the case may be, the said core or the matrix is fixed in a box or holder in
such a manner as to allow of the core when casting quods or quotations being
adjusted vertically so as to set the core to the centre of the mould; when the
machine is to be used for casting type the said rod is provided with suitable means
such as a double knuckle joint to allow of the matrix being set flat to the face of
the mould by a spring, one end of which is fixed to the bracket and the other end
bears against the matrix; the said knuckle joint when the adjustment has been
effected is rigidly fixed by means of set screws; when casting quods or quotations
however this knuckle joint is dispensed with and the bracket is provided with
adjusting screws whereby the core can be adjusted flat to the face of the mould.
A lever having its fulcrum in a suitable position on the bracket is caused to
operate the sliding rod (so as to withdraw the core or the matrix from the mould)
by means of a cam fixed on the driving shaft of the machine and striking or bearing
against the tail end of the said lever.
An adjustable spiral spring attached to the tail end of the lever and to the table.
or other suitable part of the machine serves to keep the core or the matrix firmly
pressed to the mould when the said lever is relieved from the action of the cam, and
to keep the lever against the cam.
In order to enable my invention to be fully understood I will proceed to describe
the same by reference to the accompanying drawing in which figure 1 represents a

page_text: front elevation and figure 2 a transverse section on line A B of figure 1 shewing
the bottom mould block of an ordinary type-casting machine with my improvements
applied thereto and suitable for use for casting hollow quods or quotations; figure 3
is a view shewing the improvements as applicable for use for casting type. Similar
letters in all the figures represent similar parts.
I will first describe my invention by reference to figures 1 and 2.
a is-the bracket which is fixed by any suitable means such as by screws b, to the
bottom mould block of an ordinary type-casting machine as shewn; c, is the rod
which slides in the bracket u, and d, shews the core to form the hollow quod
or quotation to be cast and which core is carried at the inner end of the sliding
rod c, in the box or holder e; the box or holder e, is provided with a set screw f
whereby the core d, can be adjusted vertically in the said box or holder so as to set
the core to the centre of the mould; g, is the spring one end of which is fixed in
the bracket a, and is made adjustable therein by any suitable means such as by
screw threading the said end as shewn at h, and providing the same with set nuts i;
the other end of the spring bears against the core at j and serves to keep the same
firmly in place against the face of the mould; %, is the lever fulcrumed, at l, in tlie
bracket a and jointed at m, to the sliding rod c; n, is the cam fixed on the driving
shaft o, of the inachine and which as the shaft revolves strikes or bears against the
tail end of the lever k and thereby operates the sliding rod c, so as to withdraw
the core d, from the mould; p, is the spiral spring attached to the tail end of
the lever k, and to a bracket q, fixed to the table r, of the machine which spring
also serves to assist in keeping the core d firmly pressed to the mould when the
lever is relieved from the pressure of the cam n; the spring p also serves to keep
the lever k against the cam n; b' are set screws which pass through the bracket a
and bear upon the face of the mould block by tightening or loosening which screws
the core is adjusted flat to the face of the mould.
.
In an apparatus or attcahment of this construction, the core d to suit the length
of quod or quotation which it is required to cast is adjusted and fixed in its box as
herein before described the set screws 6 of the bracket a are adjusted so as to set
the core flat to the face of the mould and the spring g placed in position against the
core d, and the apparatus or attachment will be ready for casting. The driving
shaft 0, of the machine being now rotated the metal will be forced into the mould
in the usual manner and the cam n on the shaft o will in rotating cause the lever k
to withdraw the core d and the mould s being opened the quod or quotation will.
fall from the mould in the usual manner. As the shaft completes its rotation the
core will be carried back into position for casting another quod or quotation and
EO. on.
When the machine is to be used for casting type I employ the ordinary lining
bar not shewn in the drawing and I replace the rod c, herein before described and
shewn in figure 2 by a similar rod but provided with a double knuckle joint tas
shewn in figure 3, which knuckle joint by allowing the end of the rod c carrying
the matrix a vertical and lateral adjustment allows of the matrix & being set quite
flat to the face of the mould by the pressure of the lining bar on the spring g as
usual which spring in this case does not itself require to be adjustable; the lever k
is also replaced by a lever of such a shape that a smaller amount of, delivery shall
be given when the matrix for the type which it is required to cast is adjusted and
fixed in its box as hereinbefore described when referring to the hollow quods or
quotations, the set screws u of the knuckle joint t, are loosened and the spring g on
the bracket a placed in position against the matrix d; the set screws u are then
tightened and the apparatus or attachment is ready for casting, the operation being
then the saino as that herein before described for the hollow quods or quotations.
It will be obvious that instead of using separate rods levers and springs for the
two operations of casting hollow quods and quotations and type by the same
machine, separate brackets provided with such rods levers and springs may be
employed so as to be interchangeable with one machine it only being necessary to
remove the screws b to detach one bracket and replace it by another.

page_text: The delivery of the matrix when casting type is by these improvements effected
horizontally instead of at an angle, whereby liability of the type to be torn up is
prevented when casting type which does not require rubbing. The said lining bar
is not required when casting. quods or quotations..
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 herein described method of delivering the matrix of an ordinary type
casting machine by withdrawing the said matrix in a horizontal direction instend
of at an angle substantially as herein before described.
(2) In a type casting machine the arrangement of apparatus or attachments
whereby the sliding rod lever and spring are made interchangeable for casting type
or hollow quods and quotations as required with the same type casting machine
substantially as herein before described. and represented in the accompanying
drawing.
(3) In a type casting machine the combination with a bracket fixed to and
detachable therefrom and having a spring bearing against the core or the matrix,
of a sliding rod carrying the said core or the matrix and operated by means of a
lever receiving motion from a cam on the driving shaft of the machine substantially
as and for the purposes hereinbefore described and represented in the accompanying
drawing.
(4) The improved apparatus or attachment for type casting machines for use for
casting hollow quods and quotations substantially as herein before described and
represented in figures 1 and 2 of the accompanying drawing.
(5) The improved apparatus or attachment for type casting machines for use for
casting type substantially as hereinbefore described and represented in figure 3 of
the accompanying drawing.