Year: 1889

page_text: Date of Application, 6th Feb., 1889
Specification Accepted, 9th Mar., 1889
1, FERDINAND HEINRICH KÜSTERMANN of 75 Prinzen Allee N. Berlin in the
German Empire, Machine Maker 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 :-
My invention relates to type founding machines and consists in an improved
construction or arrangement of the mould and apparatus for ejecting and finishing the
typos or letters.
On the sheet of drawings appended hereunto only that part of a type founding
machine is shown to which my improvements are applied, figs. 1, 2 and 3 showing
respectively a front, top and side view of the same.
The mould is formed by the lower stationary steel block S, the thicknessing plate k,
the adjustable and removable top piece D, and the movable cover A. The plate k is
attached to the slide K which is guided in the steel block S and actuated by a beam
lever H attached to the rod Z. The thickness of the letter to be cast is deterinined
by the thickness of the plate k, and for changing the letter it is only necessary to take
off the top D, this arrangement being an important improvement on the ordinary type
founding machines in which for changing the thicknessing plate the entire mould has
to be taken to pieces.
During the casting the cover A is pressed closely against the steel block S, and the
plate k drawn back as far as required for the width of the type to be cast, leaving an
enclosed rectangle X. The movement and tightening of the cover A, which is
movably guided in the bedplate G of the machine, is effected by the lever É, which is
connected by the rod B (fig. 2) to the motive mechanism of the machine.
The material is injected into the mould thus formed and after the cast is completed
the letter is pushed out by the plate k advancing to the edge of the mould, whereby
the cover A is pushed back by the letter to a distance equal to the width of the
latter. The cover is under the pressure of the spring F, consequently the letter
is held above the slit or passage 6 (fig. 1) produced by the removal of the cover A
from the mould. After this the pusher a connected to the arm T forming part of
the moving mechanism of the machine is moved downwards and pushes the letter

page_text: down to the horizontal slit or passage in front of the horizontal pusher a¹.
During this movement the gite (fig. 3) is broken off and the fin at the face of
the letter trimmed off on two sides by the cutters m² m² which are arranged in
the sides of the slit or passage b.
When the letter has arrived in front of the pusher a', the slide K' to which it
is fixed, is advanced by the lover H' and the lotter pushed into the horizontal
slit or passage b. The slide K being as hereinbefore described also connected to
the lever H, and the fulcrum of the latter being in the centre between the points
of attachment of the slides K and K₁, the plate k is drawn back while the pusher a
advances by an equal distance. At the same time the pusher a is drawn up again
and the mould clo-ed by the cover A being drawn up tight against the block S
by the lever 11. The play of the parts hereinbefore described is repeated after
the casting of the next letter. The different letters accumulate in the slit /ª and
are continually pushed forward by each following letter advanced into the slit
by the pusher a. During their progress they pass the cutters m² m² inserted
into the top and hottom of the passage and the cutters trim the other two sides
of the letters. In order to prevent them, on issning from under the cover A. from
turning over, a plate is hinged to A and keeps them down. The lever II' may
be replaced by its mechanical equivalents for producing equal and opposite movements
of the slides K and K. The parts Z, B and T receive their motions in any suitable
ordinary manner and the mechanism for actuating them does not form part of my
invention.
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:
Firstly, in type founding machines the arrangement of a movable cover (A), subject
to elastic pressure, in front of the mould and a vertically moving pusher (a) which
-hes the letter ejected from the mould down the slit or passage produced between
the cover and moult by the ejection of the letter and past lateral trimming cutters (m²)
substantially as hereinbefore described and illustrated.
Secondly, in type founding machines in combination with the arrangement claimed
in the first claim the connection of the thicknessing plate (4) and a horizontal
pusher (a) to a lever (H) or its equivalent in such a manner, that said pusher (a)
advances and pushes the letter placed in front of it by the vertical pusher (a), into
a horizontal slit or passage, provided at the top and bottom with trimming cutters (m²),
when the plate (4) recedes and makes the mould ready for the next cast, substantially
as horeinliefore described and illustrated.
Thirdly, in type founding machines a removable and adjustablo top (1)) of the
mould for facilitating the exchange of the thicknessing plato (4) substantially as
bereinbefore described and illustrated.
Dated this 2nd day of February 1889.