provements in the Wiper Mechanism of Linotype Machines.
Year: 1899

page_text: Date of Application, 31st Oct., 1899
Complete Specification Left. 31st July, 1900-Accepted. 6th Oct.. 1900
PROVISIONAL SPECIFICATION
Improvements in the Wiper Mechanism of Linotype Machines.
We, WILLIAM HENRY LOCK, Manager and Secretary of The Linotype Company
Limited, of 188, Fleet Street, in the City of London, and WILLIAM CASSIN PRIT-
CHARD, of Kenfig House, Seymour Road, Ashley Down, Bristol, in the County of
Gloucester, Linotype Expert, do hereby declare the nature of this invention
to be as follows:-
The present invention relates to improvements in the wiper mechanism of lino-
type machines more especially in that of the machine described in the Specifica-
tion of Letters Patent 14682 of 1890 In that machine the composed line of
matrices and space bars is moved horizontally from near the place of composition,
in the direction of the casting mechanism, by a vertical lever which has a recipio-
cating motion on a fulcrum below the said mechanism The mould 18 a cavity
of the same size as the body of a linotype It stands in a wheel with its length
parallel with a diameter of the wheel and its width parallel with the wheel's
ax18. The newly cast linotype must be trimmed along its two sides, more or less,
and this is done by pushing it between a pair of parallel knives. The wheel is
moved forward for a short distance to close up metal tight to the composed line
of matrices and space bars which then forms the printing edge of the linotype,
then back again to clear that line and next through three quarters of a circle
The mould with the linotype in it is then standing opposite the pair of trimming
knives It is moved up to them and the linotype pushed out of the mould and
between the knives The wheel 18 then moved back into its normal position
ready to be moved up through a quarter of a cncle and forwards again to the com-
posed line above mentioned Fragments of metal are frequently left adhering
to the mould or to the edges of the knives, more especially to the latter, and
these fragments are removed by some kind of wiper
According to the present invention, one or more brushes, circular in cross
section and of the proper diameter, length and stiffness, are mounted vertically
in a frame capable of a horizontal reciprocating motion in a guide fast to the
block that carries the trimming knives This frame 18 connected to the level
above described or to any other equivalent member of the machine When the
mould is opposite the knives and at a sufficient distance from them, the throw
of the lever carmes the brush between and over them and back again, the travel
of the brush in both directions being across the knives and the mould as well
Dated this 30th day of October 1899

page_text: Improvements in the Wiper Mechanism of Linotype Machines.
We, WILLIAM HENRY LOCK, Manager and Secretary of The Linotype Company
Limited, of 188, Fleet Street, in the City of London, and WILLIAM CASSIN PRIT-
CHARD, of Kenfig House, Seymour Road, Ashley Down, Bristol, in the County of
Gloucester, Linotype Expert, 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.
For
The present invention relates to improvements in the wiper mechanism of the
Mergenthale machine described in the Specification of Letters Patent 14582
September 16th 1890 In that machine, the linotype is cast in a slot in a 80-
called mould wheel whilst the said slot is held by the wheel in a horizontal posi-
tion against a row of formative cavities in the composed line of matrices This
composed line is shifted through a part of its travel from the assembly box in
which the composition takes place, to the casting position, by a lever worked
automatically by the machine After the linotype has been cast, the two sides
of it must be trimmed so as to be practically truly parallel with each other
that purpose, the mould wheel is moved through an angle of 270° so as to make
it hold the slot in a vertical position to register with the space between two
parallel vertical knives set apart at a distance equal to the trimmed thickness of
the linotype The wheel is moved up to the knives and the linotype pushed
between them by a reciprocating ejector The act of trimming the sides of the
linotype, by the cutting edges of the knives as it 18 80 pushed between them,
leaves fragments of metal adbeing thereto, and there are fragments sometimes
left adhering to the face of the wheel immediately adjacent to the slot in it. It
18 the function of the wiper to remove all these fragments
According to the present invention, the wiper consists of one or more brushes
circular in cross-section and of the proper diameter, length and stiffness, and
which are mounted vertically in a frame capable of horizontal reciprocating
motion between the knives and mould wheel.
Referring to the accompanying diawings which are to be taken as part of this
specification and rend therewith,
Figure 1 is a fiont elevation on the line 1-1 of Figure 3 looking at it in the
direction of the bottom arrow.
Figure 2, a rear elevation on the line 2-2 of Figure 3 looking at it in the
direction of the top arrow; and
Figure 3, a plan of both the preceding figures
O is the mould wheel and o, the slot, which latter is formed for convenience in
a detachable block o" fixed to the face of the said wheel o is the gearing by
which the latter is turned by a suitably diven pinion, not shewn in the drawings,
and is the wheel journal The slot o, it may be mentioned, extends through
the wheel from the front to the rear face, that its length is parallel with a
diameter of the said wheel O and that its width is parallel with the axis of the
latter The full lines of Figure 1 shew the slot o in the above mentioned hori-
zontal or casting position, while the dotted lines on the right hand of the said
figure, shew it in the humming position
1,2 are the pair of trimming knives fixed to the knife block 2* 3, 4 are the
two brushes of the improved wiper. The number 18 indifferent There may be
only one, but two are preferred, because experience has shewn that they do the
work of wiping perfectly under all circumstances, which one brush might not do
They are both of the same length, not much less than that of the mould block o",

page_text: of sufficient diameter to brush both knives and mould face, when the mould
wheel O is in the trimming position, and stiff enough to do that trimming well.
The material of them is preferably bristles 5. 6 are the spindles of the
brushes 3, 4. The ends of them project above and below the brushes proper for
the purpose of entering the wiper frame 7 which holds them in a vertical posi-
tion and reciprocates them over both the knives 1, 2 and the face of the mould o
The ends of the spindles 5, 6 are inserted in the respective journals in the frame 7
in any convenient way. It is preferred that the end of each frame should have a
detachable cap plate 8, 8, to be held in position by a holding screw 9. Each cap
plate is screwed up tight enough to prevent the spindles 5, 6, turning in their
journals
10 is a slotted guide for the frame 7 to work through It is fixed to the
frame A of the machine or to some fixed part of it
11 is a cranked connecting rod from the right hand edge of the frame 7 to the
automatic line shifting lever 12 above mentioned, and to which it 18 connected by
a bolt and nut 13 passed through a compensating slot 14 in the said lever 12
The wheel O being in the normal position, 2. with the slot o registering with
the space between the knives 1, 2 and a short distance to the rear of them the
machine rocks the lever 12 from its right hand position shewn by the full lines
of the three figures, over to the left into the position shewn in dotted lines in
Figure 1 The object of this throw has been already explained During this
motion of the said lever, the improved wiper wines both the knives 1. 2 and the
face of the mould Before the level 12 18 1ocked back again, the mould wheel
is turned un through a quarter of a circle into the casting position, so that only
the knives 1, 2 are wiped by the return motion of the said wiper
Having now particularly described and ascertained the nature of our sand
invention and in what manner the same is to be performed, we declare that what
we claim is
-
1 The improved wiper consisting of vertical brush or brushes, fiame to hold
and carry it or them, and connecting 1od from the said frame to the automatic
line shifting lever
2 The herein before described combination of brush or brushes, frame to hold
and carry it or them fixed guide for the said frame, automatie line slufter
lever reciprocating at the desired times; and a connecting rod from the said frame
fo the said lever
Dated this 31st day of July 1900