Improvements in the Adjustable Moulds of Linotype Machines.
Year: 1899

page_text: Date of Application, 8th May, 1899
Complete Specification Left, 8th Feb., 1900-Accepted, 31st Mar., 1900
PROVISIONAL SPECIFICATION.
Improvements in the Adjustable Moulds of Linotype Machines.
We, WILLIAM HENRY LOCK, Manager and Secretary of The Linotype Company
Limited, of No. 188, Fleet Street, in the City of London, and FREDRICK MOSLEY,
of "The Aberdeen Journal" Office, Broad Street, Aberdeen, N.B., Engineer, do
hereby declare the nature of this invention to be as follows:-
-
The present invention relates to improvements in the adjustable moulds of
linotype machines and consists in improved means for adjusting them for changes
in thickness of linotype. It is specially applicable to the moulds of the Mergen-
thaler linotype machine and the nature of it will be clearly understood from
a description of it as made for that machine. The actual mould is a cavity
between a bottom plate, a cap plate parallel therewith, and two end liners
gripped between the cap plate and bottom plate by holding screws, the whole
forming what is known as a mould block. This is fixed on the side of a mould
wheel. The distance between the two plates is the thickness of the linotype.
According to the present invention, the end liners are abandoned, and the cap
plate is in three pieces, the middle one being as long as the linotype. Both end
pieces are held down upon the bottom plate by the holding screws above
mentioned. The middle piece slides up and down between the said end pieces,
in suitable guides. It is held in its adjusted position by screws passed through
it into corresponding holes in the mould wheel. There are as many sets of
screw holes in the mould wheel as there are different positions for the middle
piece to occupy.
Improvements in the Adjustable Moulds of Linotype Machines.
We, WILLIAM HENRY LOCK, Manager and Secretary of The Linotype Company,
Limited, of No. 1SS, Fleet Street. in the City of London, and FREDRICK MOSLEY,
of "The Aberdeen Journal" Office, Broad Street, Aberdeen, N.B., 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:-
The present invention relates to improvements in the adjustable moulds of
linotype machines and consists in improved means for adjusting them for changes
in thickness of linotype. It is specially applicable to the moulds of the Mergen-
TD 077

page_text: thaler linotype machine. The actual mould of that machine is a cavity between
a bottom plate, a cap plate parallel therewith and two end liners gripped between
the cap plate and bottom plate, by holding screws, the whole forming what is
known as a mould block. This block is fixed on the face of a mould wheel (so
called because it carries the mould), with the length of the mould parallel with
a diameter of the wheel and the width of it parallel with the axis of the wheel.
It is the distance between the cap and bottom plates that regulates the thickness
of the linotype.
Referring to the accompanying drawings, which are to be taken as part of
this specification and read therewith,
Figure 1 is a front elevation illustrating the invention and the construction of
mould block which it supersedes:
Figure 2, an end elevation of Figure 1; the respective portion of the mould
wheel being shown in section :
.
Figure 3, a plan of the improved mould block:
Figure 4, a front elevation of an improved mould block, showing the cap
plate detached from it:
Figure 5, an end elevation from the left hand, of the detached cap plate of
Figure 4; and
Figure 6, a section on the line 6-6 of Figure 4.
1 is a portion of the mould wheel. The only function. of the latter with
which the present invention is concerned is that of being the mould carrier. 2 is
the actual mould, and 3, the bottom plate held to the mould wheel in the usual.
way. 4 is the improved adjustable cap plate and 5, 5, end pieces made fast to
the bottom plate. Heretofore the cap plate has been in one piece comprising
the above mentioned cap plate 4 and end pieces 5, 5. It has been held down
to the bottom plate 3 by holding screws 6, 6, and from it at the proper distance
for the thickness of the linotype, by end liners 7, 7, or their equivalent. 8 is
the rearwardly projecting part of the mould block standing in the cavity 9
in the mould wheel 1, and against the top of which the cap plate abutted when
it was adjusted for the thickest linotype. Whenever the mould block had to
be adjusted for a change in the thickness of a linotype, adjustment was effected
by changing the end liners 7, 7, or their equivalents. When the end liners were
detachable flat pieces such as 7, 7, they were taken out and another pair of the
proper thickness inserted. As these end liners have no longer anything to do
with the adjustability of the mould 2, for thickness of linotype, they may be
made in one piece with the bottom plate 2, or each one in one piece with its
respective end piece 5, or all four pieces 5 and 7 may be in one piece with the
bottom plate 3, according to convenience of manufacture.
According to the present invention, the improved adjustable cap plate 4 is
capable of the necessary motion to and from the bottom plate 3, by an engage-
ment in guides in the end pieces 5. These guides are shewn as rectangular
grooves 10, 10, the cap plate 4 having tenoned ends 11, 11, to slide therein. The
said plate 4 is held in its adjusted position by a screw 12 adapted to engage in
one of a series of screw holes 13 in the wheel 1. There is a hole in the wheel 1
for each position of the cap plate 4, as indicated by the dotted lines 13, but as
the graduations in the distance of the said cap plate 4 from the bottom plate 3,
are less than the minimum diameter that the shank of the screw 12 can have
to be strong enough for its work, the screw holes 13 in the wheel 1 must be
arranged otherwise than in a column, the vertical distance from the centre of
one to the centre of the next corresponding with the different positions of
the cap plate 4 with reference to the bottom plate 3. There are as many screw
holes 14 in the cap plate 4 as there are in the wheel 1, each so positioned as
to register with the respective hole 13 in the wheel 1 when the cap plate 4 is
at the desired distance from the bottom plate 3. Thus, the screw 12 is shewn
in Figure 1 as holding the cap plate in position for the thinnest linotype. If
the said plate is moved up the guides 10, 10, until the right hand hole 14

page_text: registers with the right hand hole 13, the mould 2 will be adjusted for the
fourth thickness of linotype.
The present invention includes as a modification of it, forming the guides in
or on the mould carrier, or in other words detaching the end pieces. 5 from
the mould block and incorporating them with the mould carrier.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that
what we claim is:-
1. The combination of mould block; cap plate adjustable for thickness of
linotype by sliding in guides; mould carrier; and screw device to hold the cap
plate in its adjusted position by holding it to the mould carrier as set forth.
2. The herein before described combination of mould carrier; mould block
having a cap plate adapted to slide to and from the bottom plate in guides;
a series of holes in the mould carrier and a screw in the adjustable cap plate
adapted to engage in any hole in the said series to hold the said plate in its
adjusted position..
Dated this 8th day of Fahruary 1900
CHAS. S. WOODROFFE,
Chartered Patent Agent.