AN IMPROVED APPARATUS FOR REMOVING THE STEM OF METAL FORMED UPON PRINTERS' TYPE IN THE PROCESS OF CASTING
Year: 1868

page_text: PROVISIONAL SPECIFICATION left by William Robert Lake at the
Office of the Commissioners of Patents, with his Petition, on the
5th December 1868.-A communication from abroad by David
Bruce, of Brooklyn, New York, United States of America, Type
Founder.
•
I, WILLIAM ROBERT LAKE, of the "International Patent Office,"
No. 8, Southampton Buildings, Chancery Lane, in the County of
Middlesex, Consulting Engineer, do hereby declare the nature of the
said Invention for "AN IMPROVED APPARATUS FOR REMOVING THE STEM OF
METAL FORMED UPON PRINTERS' TYPE IN THE PROCESS OF CASTING," a com-
munication, to be as follows:-
The said Invention relates to apparatus for breaking off the shank or
stem of metal which adheres to printers' types when they are first cast.
Figure 1 is a side view of the said apparatus; Figure 2 is a plan,
and Figure 3 is a front end view of the same; Figure 4 is a longitudinal
section through the line X, X, Figure 2; Figure 5 is a longitudinal
section through the line X, X, Figure 2, shewing the parts of the appa-
ratus as they appear when discharging the type therefrom.
A represents the stock or frame of the said apparatus by which it is
attached to a printer's type-casting machine, in such a position with

page_text: reference to the mould as to catch or receive the newly cast type imme-
diately after it is discharged from the mould. In the upper surface of
the stock is formed a gutter B for the type to descend in, vertically
through the gutter is cut a hole C, into which is fitted an adjustable
plug D attached to a right-angled lever E, working on a centre pin F,
which when drawn back lets the broken-off jet of type metal escape,
while the type slides down the gutter to escape from the end of the
apparatus. This plug D is kept in its place by a spring G; H is a
sliding adjusting plate, secured to the face of the stock A by set screws I,
working in slots J in the said plate. This plate is vibrated by a pin K
in the pendent leg of the lever E, working in an oblong grooved plate L,
or guide way attached to the lower edge of the plate H. Secured to the
upper edge of this plate is a tapis M for operating a trip or spring
hammer X; N is a movable jaw, secured to the stock A by a centre
pin P Q is a bifurcated or U-shaped cam attached to the upper edge of
the sliding plate H, and acting on a tapis R on the end of the movable
jaw; S is a compound or double-leaved spring attached to the end of
the stock. A by a pin V, and having an oblong slot V₁ through it to
admit of a vibratory motion on the set screw T to open and close the
gutter B by means of the tapis W; Y is the spring to which the
hammer X is attached, and is clevated by a-stud Z-on the-lever E-till-
the tapis M comes under the end of the spring to hold the hammer up
while the type is being adjusted in the gutter: The propelling shaft us
and cam & attached thereto operate the apparatus in connection with a
type-casting machine, of which the propelling shaft and cam will form
a part. When the type is discharged from the mould of the casting
machine it drops into the gutter B face end downwards, and slides down
against the spring S. In this position the moveable jaw N descends to
hold it steadily in place. At the same time the plug D is drawn back
from the hole C, and the hammer X is tripped to break off the jet of
metal adhering to the end of the type, which falls through the hole C.
Immediately after this is donc the jaw releases the type which slides
down the gutter out of the apparatus through adjustable oblong slots in
the spring S, while the plug returns to fill the hole C again, and thus
complete the gutter for a second type.