Improvements in Type Casting Machinery.
Year: 1893

page_text: Date of Application, 13th Nov., 1893
Complete Specification Left, 14th July, 1894-Accented, 18th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Type Casting Machinery.
I, BERNARD RODWELL BANKS of 22 Elgin Road Croydon Surrey Engineer
do hereby declare the nature of this invention to be as follows:-
I employ a rotary wheel of suitable diameter running either vertically or
horizontally, preferably vertically. This wheel has on one face grooves of a
suitable length & width to cast the size of type required. The matrix for forming
the letters being attached to the inside end of the groove thus forming a mould of
three sides, open in front and closed at the back by the matrix. The fourth side
or top is formed by a cover or sliding piece provided with projections on the under
side of a suitable size for forming the nicks in the type when casting. These
projections are specially used to eject the type from the mould, and the covers or
sliding pieces are alternately moved backward & forwards by a suitable cam. The
sliding pieces or covers are kept in place by suitable guides.
Dated this 13th day of November 1893.
BERNARD R. BANKS.
COMPLETE SPECIFICATION.
.Improvements in Type Casting Machinery.
I BERNARD RODWELL BANKS of 22 Elgin Road Croydon in the County of
Surrey Engineer do hereby declare the nature of this invention and in what
manner the same is to be performed, to be particularly described and ascertained.
in and by the following statement:―
This my invention relates to an improved machine for manufacturing printers'
type and my invention consists in the construction and combination of the several
parts hereinafter described.
For my invention I employ a plate, disc, or wheel rotating vertically horizontally
or otherwise about a suitable axis and having a series of radial apertures or
grooves formed in the periphery thereof. The said apertures forming moulds in
which the type are cast. The apertures are grooves cut out of the solid part of
the said wheel as to three sides, the fourth side or top being closed by a sliding
Cover. This said cover is provided with projections on its under side of a suitable
size for forming the nicks in each type, such projections are used also for the
purpose of ejecting the type when cast. These sliding pieces or covers moving in
suitable guides are alternately moved forwards and backwards by suitable cams
and by the means of the said projections the type is ejected from the moulds.
The back of the mould is closed by the matrix, of the letter or figure designed to
be cast, held in position by screws or other suitable means-such means always
allowing of adjustment. The front of the mould is open to receive the metal.
The molten metal is forced by a pump or other means through a nozzle or jet
which is arranged in the same plane as the apertures before described. The
apertures as they pass the nozzle receive a charge of metal and thereby the type
is formed, which in the course of a revolution of the wheel is ejected by the
sliding pieces or covers aforesaid.
In order that my invention may be more readily understood reference should be
made to the following drawings in which Fig. 1 is a plan of the casting wheel
seen in a horizontal position Fig. 2. is a section taken on the line xx of Fig. 1.

page_text: A is the rotary wheel rotating about column G, a the apertures therein, b, the fixed
matrix at the end of a.- is the sliding cover forming the top of the mould or
groove. B, the shield fitting closely the periphery of A, containing the tapered
opening C. through which the molten metal is supplied to the moulds rotating
before it d Fig. 2 is a spring of suitable form and power putting pressure on the
cover. c. at or about the moment it receives the charge of metal D is the cam for
withdrawing within the periphery of the wheel the sliding covers. after which the
spring e forces the covers against the shield B in position to complete the mould,
E is the cam which ejects the type by means these covers & f the projections
thereon.
The action of the whole is.
A is rotated by suitable means, molten metal is injected through C, the covers c
being flush with the periphery of the wheel, a charge of metal is deposited as the
apertures a pass the opening C.-A still rotating the slides are brought into contact
with the cam E and gradually forced out till at F the cover c is extended in excess
of the length of the type beyond the periphery and carries the completed type
with it, which is then removed by suitable means.
The cam D then withdraws the covers as at H ready for another supply of
metal.
my Baid
Having now particularly described and ascertained the nature of
invention and in what manner the same is to be performed I declare that what I
claim is―
I. In an apparatus for casting printers type a fixed and adjustable matrix in
conjunction with a rotary wheel of type moulds running vertically horizontally or
otherwise.
II. In conjunction with a fixed matrix and wheel as aforesaid, a sliding piece
or cover with the proper projections for making the nicks in the type, such
projections to be used especially for ejecting the type from the machine.-The
whole to be arranged and operated substantially as described and illustrated in the
accompanying drawings.
Dated this Seventh day of July 1894..