IMPROVEMENTS IN THE PROCESS AND APPARATUS FOR CASTING LEADS AND SLUGS FOR THE USE OF PRINTERS
Year: 1880

page_text: LETTERS PATENT to Jasper Wetter, of the Firm of Herbert and Company,
Solicitors of Patents, of 67, Strand, in the City of Westminster, Civil Engineer,
for an Invention of "IMPROVEMENTS IN THE PROCESS AND APPARATUS FOR
CASTING LEADS AND SLUGS FOR THE USE OF PRINTERS." A communication
from abroad by John Fleming, of Toronto, Province of Ontario, Dominion
of Canada
PROVISIONAL SPECIFICATION left by the said Jasper Wetter at the Office
of the Commissioners of Patents on the 30th June 1880.
JASPER WETTER, of the Firm of Herbert and Company, Solicitors of Patents, of
67, Strand, in the City of Westminster, Civil Engineer. "IMPROVEMENTS IN THE
PROCESS AND APPARATUS FOR CASTING LEADS AND SLUGS FOR THE USE OF
PRINTERS." A communication from abroad by John Fleming, of Toronto, Province
of Ontario, Dominion of Canada.
This Invention relates to improvements in the manufacture of leads for printers'
use, by which such material can be produced with a rapidity and economy hitherto
impossible. The Invention consists in casting the leads in a series of bars in a gate
or frame between the sections of a flask faced with a covering of asbestos, paper, or
similar material; also in making the flask of two halves or plates coupled together
at their lower end by a hinge joint, one of the said plates (the upper one) being
provided with a clamping device for clamping the plates together when the gate is
placed between for casting, a screw spindle being preferably applied to the transverse
beam of the said device for obtaining the necessary pressure. Also in mounting
the flask with attachments in journals upon a frame in such a manner that the
flask can be turned from a nearly horizontal into a nearly vertical position. The
lead gate has a series of parallel longitudinal openings which correspond in width
with the lead to be cast and receive the molten composition. Instead of using a
removable gate the recesses for the leads may be formed by planing out the faco
of one of the sections or halves of the flask, leaving the face of the other plate
plain.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Jasper Wettor in the Great Seal Patent Office on the 22nd December
1880.
JASPER WETTER, of the Firm of Herbert and Company, Solicitors of Patents, of
67, Strand, in the City of Westminster, Civil Engineer.
"IMPROVEMENTS IN THE 5
PROCESS AND APPARATUS FOR CASTING LEADS AND SLUGS FOR THE USE OF
PRINTERS." A communication from abroad by John Fleming, of Toronto, Province
of Ontario, Dominion of Canada.
This Invention has relation to improvements in the manufacture of leads for
printers' use, by which such material can be produced with a rapidity and economy 1
hitherto impossible.
Referring to the accompanying Drawings:
1
Figures 1 and 2 are cross sections of a machine for casting leads, in the
construction of which the improvements are embodied.
Figure 3 is a plan, and Figure 4 an end view of the same.
"
5 is a perspective view in detail of the lead gate.
1
The apparatus consists of a flask A, made in two sections A¹ and A2, which are
coupled together at their lower ends by a slotted hinge joint. The base plato A'
of the flask is provided with a clamping device B, by which the plates are clamped
together when the lead gate C is placed between for casting; and in order that the 2
plates of the flask may be separated, to permit of the removal of the lead gate,
the beam B of the clamp is made adjustable, and is provided with a screw B². The
flask and attachments are mounted in journals d, d, upon a frame D, in such
manner that the flask, can be turned to and supported in either of the positions
shewn in Figures 1 and 2. The lead gate C is provided with a series of parallel 2
longitudinal openings c, which correspond in width with the lead in the rough, and
care is taken to make the gate of a uniform thickness throughout its surface.
The inner faces of the flask soctions are covered with a layer of asbestos, paper,
or other material which will prevent the melted material of the leads cooling
before it reaches the bottom of the openings c. In operation the lead gate is
inserted between the sections of the flask, and the flask clamped up and placed in
the position shown in Figure 1. The melted composition of which the leads are
to be made is then poured into each of the openings in the gate, and flows down to
the bottom of the gato without impediment or cooling, filling the whole of the
vacant spaces in the gate in a most perfect manner. So soon as the metal is cool
enough the flask is tilted, in the position shewn in Figure 2, and the gate removed
by unfastening the clamp.
The flask may be of any size that is convenient to handle, and the gate may
vary in thickness and in the size of its openings to correspond with the different
descriptions of leads and slugs required in the art of printing. As a modification,
the recesses for the leads could be formed by planing out the face of one of the
sections of the flask, leaving the face of the other flask plain. While this method
would dispense with the use of a separate gate, it would not be so good a device as
the flask with a separate gate. After the leads and slugs are thus cast in parallel
bars of approximately the proper width and thickness, they are placed in a planing
machine and finished, and cut up in the ordinary way to the standard sizes
required.
The advantages of this Invention are, rapidity and economy in the production of
leads and slugs by the saving of labor and time, I claim as new, and desire to
secure by Letters Patent,-
1. The process herein described of manufacturing leads and slugs for printers'
use, the said process consisting in casting the leads in a series of bars in a gate
between the sections of a flask faced with a covering of asbestos, paper, or similar
material, substantially as shewn and described.

page_text: 2. The flask A, constructed in sections, which are faced with asbestos or similar
material, in combination with the gate C, provided with parallel openings c, c,
substantially as shewn and described, and for the purpose set forth.
3. The flask A, constructed in sections, hinged together substantially as shewn
and 'described, and provided with an adjustable clamping device in combination
with and pivotted to the frame D, substantially as described.
In witness whereof, I, the said Jasper Wetter, have hereunto set my hand
and seal, this Twenty second day of December, A.D. 1880.
T