IMPROVEMENTS IN THE MANUFACTURE OF TOOLS FOR THE FORMATION OF TYPE, AND IN THE MANUFACTURE OF TYPE
Year: 1876

page_text: LETTERS PATENT to Joseph Bartlett and William Marr Murray, both of
Saint John's Square, in the County of Middlesex, Type Manufacturers, for
the Invention of "IMPROVEMENTS IN THE MANUFACTURE OF TOOLS FOR THE
FORMATION OF TYPE, AND IN THE MANUFACTURE OF TYPE."
PROVISIONAL SPECIFICATION left by the said Joseph Bartlett and William
Marr Murray at the Office of the Commissioners of Patents on the 10th
August 1876.
JOSEPH BARTLETT and WILLIAM MARR MURRAY, both of Saint John's Square,
in the County of Middlesex, Type Manufacturers. "IMPROVEMENTS IN THE MANU-
FACTURE OF TOOLS FOR THE FORMATION OF TYPE, AND IN THE MANUFACTURE OF
TYPE."
The improvements relate to the manufacture of raised type, and consist in
treating singly or collectively countersunk or engraved letters or devices engraved
or etched (forward) on any convenient plate or material by making said plate or
material into a mold and taking a cast therefrom, and in forming a matrix from
said cast or block by electro-metallic deposit in the usual manner, and casting in
the matrix so formed type in the usual manner.
Further, in coating the face of plates with solder, so that after device is engraved
and raised thereon (as after described) the plate so treated will, on being submitted
to heat, cause the solder to flow and a more thorough amalgamation of the plate
and its raised device to be ensured.
Also the engraving or etching plates with varnish or other electro-metallic non-
conducting substance in such manner that the device may be left bright and
capable of receiving an electro-metallic deposit in the ordinary way, and thus be
formed into a raised block or mold, from which a matrix may be formed for casting
raised type.
Also in treating engraved or etched plates by rubbing in and filling devices with
prepared chalk or other analogous substance, and applying varnish or wax or other
convenient material to the plate and so obtain greater depth to the engraved work
by etching the device through the varnish and removing the chalk, and from the
raised type thus formed making a matrix.

page_text: Further, in treating countersunk typo or devices as described in the Specification
to Letters Patent No. 2215, granted to Joseph Bartlett on 25 July A.D. 1872, by
chasing out the surface metal and leaving the hitherto countersunk type lotter or
device in relief.
The Invention also embraces, when it is desired to reverse from backwards to
forwards, or vice versa, the treatment of countersunk devices by filling in such
with wax or other electro-metallic non-conductor, and the depositing on the flat
exposed surfaces of the plate on which said device is engraved or etched, and
leaving the device itself intact, and in the use of this production as a die where-
with to form a matrix.
The improvements further consist in roughing the above matrices, matrices and
dies generally, for the formation of type and type itself by etching, engraving, or
otherwise giving a fluted or cross hatched or roughened surface thereto, and so
equalizing the distribution of ink to type so roughoned that both fine and coarse
work may print and be inked alike.
The improvements embrace the making shapes or chases for raised or sunk typo
as described in the Specification to Letters Patent, No. 2215, of A.D. 1872 afore-
said, by engraving or etching a skeleton device on a plate taking an electro or other
relief impression thereof, furnishing it or the engraved plate itself with a frame or
sides type height, filling up all the parts of the shape or chase so formed, and thus
constructing a honeycomb, taking a cast from said honey-combed shape and leaving
the honeycomb perforations to receive either raised or sunk type.
Lastly, the improvements comprise casting type raised or sunk any geometrical
figure other than square.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Joseph Bartlett and William Marr Murray in the Great Seal Patent
Office on the 10th February 1877.
Joseph BartleTT and WILLIAM MARR MURRAY, both of Saint John's Square, in
the County of Middlesex, Type Manufacturers. "IMPROVEMENTS IN THE MANU-
FACTURE OF TOOLS FOR THE FORMATION OF TYPE, AND IN THE MANUFACTURE OF
TYPE."
The improvements relate to the manufacture of raised type, and consist in
treating singly or collectively countersunk or engraved letters or devices engraved
or etched (forward or backward) on any convenient plate or material by making
said plate or material into a mould and taking a cast therefrom, and in forming a
matrix from said cast or block by electro-metallic deposit in the usual manner, and
casting in the matrix so formed type in the usual manner.
Further, in coating the surface of the plate with solder, then engraving or etching
device thereon, which device is then filled in with varnish and plaister or other
convenient non-conducting material. The plate having thus been prepared as before
stated we then proceed to raise the surface of the said plate (and by that means
deepen the device) 1st., by subjecting the above-mentioned plate to sufficient heat
to dissolve and amalgamate a second coating of solder with the first, the solder-
flowing only wher previously tinned, the device (being filled in with plaister and
varnish or other material) remaining intact. We thus proceed raising the surface
and thus sinking the device by dissolving layer on layer of solder, each succeeding
layer dissolving at a lower temperature than the former, until the device is
sufficiently deep for our purpose. We then place it in the sulphate solution, and
electro-type a raised block or device from the sunk plate above described. The
raised block or device being thus obtained is again placed in the electro-typing
tray and a matrix obtained from it in the usual way, in which matrix the type is
cast. We sometimes find it advantageous to use plaister, wax, or other material
instead of fusible metal.

page_text: Also, the engraving or etching plates, with varnish or other electro-metallic non-
conducting substance, in such manner that the device may be left bright and
capable of receiving an electro-metallic deposit in the ordinary way, and thus be
formed into a raised block or mould, from which a matrix may be formed for
casting raised type.
Also in treating engraved or etched plates by rubbing in and filling devices with
prepared chalk or other analogous substance, and applying varnish or wax, or other
convenient material to the plate, and so obtain greater depth to the engraved work
by etching the device through the varnish and removing the chalk, and from the
raised type thus formed making a matrix.
Further, in treating countersunk type or devices, as described in the Specification
to Letters Patent, No. 2215, granted to Joseph Bartlett on 25 July, A.D. 1872, by
chasing out the surface metal and leaving the hitherto countersunk type letter or
device in relief; also in setting up sunk type in a form and taking a mould there-
from to print either black or white lines.
The Invention also embraces, when it is desired to reverse from backwards to
forwards, or vice versa, the treatment of countersunk devices by filling in such with
wax or other electro-metallic non-conductor, and the depositing on the flat exposed
surfaces of the plate on which said device is engraved or etched, and leaving the
device intact, and in the use of this production as a die wherewith to form a
matrix.
Further, in engraving letters or devices forwards, taking a cast therefrom in
fusible metal or other composition, deepening all necessary parts, taking matrix
from same and cast type in the usual way.
Further, in coating a non-conducting body of metal with a thin layer of
conducting metal, transfering or drawing device on same, etching through the
said thin layer or conducting metal and the taking mould from same.
The improvements further consist in roughening the above matrixes and dies
generally for the formation of type and type itself by etching, engraving, or
otherwise giving a fluted or cross etched or roughened surface thereto, and so
equalizing the distribution of ink to type so roughened that both fine and coarse
work may print and be inked alike.
The improvements embrace the making shapes or chases for raised or sunk type,
as described in the Specification to Letters Patent No. 2215, of A.D. 1872 aforesaid,
by engraving or etching a skeleton device on a plate, taking an electro or other
relief impression thereof, furnishing it or the engraved plate itself with a frame or
sides type height, filling up all the parts of the shape or chase so formed, and thus
constructing a honey-combed shape, taking a cast from said shape, and leaving the
honey-combed perforations to receive either raised or sunk type.
Lastly, the improvements comprise casting type raised or sunk any geometrical
figure other than square or rhomboidal, by casting the type in moulds with sides
formed in curves, angles, or otherwise.
In witness whereof, we, the said Joseph Bartlett and William Marr Murray,
have hereunto set our hands and seals, this Ninth day of February, in tho
year of our Lord One thousand eight hundred and seventy_cowan