provements in the Casting Mechanism of Linotype Machines
Year: 1898

page_text: Date of Application, 31st Dec, 1898
Complete Specification Left, 30th Sept., 1899-Accepted, 25th Nov., 1899
PROVISIONAL SPECIFICATION
Improvements in the Casting Mechanism of Linotype Machines
I, WILLIAM HENRY LOCK, Manage and Secretary of the Linotype Company
Limited, of 188, Fleet Street, in the City of London, do hereby declare the
nature of this invention as the same has been communicated to me from The
National Typographic Company (a company organized under the laws of the
State of West Virginia) and having its principal places of business at Washing-
ton, D.C, and New York City, USA, to be as follows:-
-
The present invention relates to improvements in the casting mechanism of
linotype machines, and its object is to provide for the metal pot mouth through
which the metal is delivered into the mould, being cleaned after each cast. It
consists in means for automatically removing from the sides of the mouth, all
dross or metal which may be adhering thereto from the preceding cast, and for
pushing it, preferably, towards the metal pot.
It has been devised especially for the Meigenthalei linotype machine described
in the Specification of Letters Patent 14582 of 1890 The mould of that machine
18 carried by a wheel which has two motions, one of rotation about its axis, and
the other, a reciprocating linear one up to and back from the composed line of
type matrices. The former 18 effected by toothed gearing and the latter by a
cam mechanism
The mouth above mentioned may be a slot, but it is generally a 10w of holes
Both it and the composed line are horizontal The rotary motion of the mould
wheel 18 stopped when the mould registers with the mouth, and the wheel 18
then moved up to the composed line and the metal pot mouth up to the other
side of the mould After the cast, both wheel and metal pot are moved back
and the wheel is turned on its axis until the mould is in a vertical position, when
the linotype is pushed out of it by an automatic ejector into a galley. During
the act of ejection the wheel is held against 1otary motion by steady pins.
The mouth cleaning device consists of a plate or of a 10w of pins (according to
whether the mouth is a slot on a row of holes) held to the back of the mould
wheel so as to register with the said mouth when the wheel is in the ejecting
position The cam pushes the pot forward until the mouth passes over the said
device, whereby the sides of the mouth are scraped and the scrapings pushed
back out of the mouth towards the metal pot
To enable the cleaning pins to be conveniently held to the mould wheel, and
to facilitate then removal or insertion to suit any change in the length of the
Linotype, or to provide for a damaged one being replaced, there 18 a plate having
a longitudinal row of holes to receive the pins suitably headed to be held up to
the perforated plate by a backing up plate The wheel is recessed to receive the
plates and cleaner in order that the latter may clear the knife that trims the
foot of the hnotype as the wheel revolves. The correct engagement of the
pins with their respective holes is provided for by tapering the ends of the former
and flaring the latter

page_text: The holes are scraped and the metal pot moved back by the cam mechanism
before the act of ejection is completed.
With a mould wheel working as the one described above, there is a cleaning
device to register with the mouth of the metal pot each time that a mould is in
the ejecting position.
Dated then 21at J $ Donambi 1000
CHAS S WOODROFFE,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in the Casting Mechanism of Linotype Machines.
I, WILLIAM HENRY LOCK, Manager and Secretary of the Linotype Company,
Limited, of 188, Fleet Street, in the City of London, do hereby declare the nature
of this invention and in what manner the same 18 to be performed (as they have
been communicated to me by The National Typographic Company, a company
organised under the laws of the State of West Virginia, and having its principal
places of business at Washington, D.C, and New York City, U.S A.), to be par-
ticularly described and ascertained in and by the following statement
The present invention relates to improvements in the casting mechanism of
linotype machines, and its object is to provide for the metal pot mouth through
which the metal is delivered into the mould, being cleaned after each cast. It
consists in means for automatically removing from the sides of the mouth all
dioss or metal which may be adhei ing thereto from the preceding cast, and for
pushing it towards the metal pot
It has been devised especially for the Mergenthaler linotype machine described
in the Specification of Letters Patent 14582 of 1890 The mould of that machine
18 carried by a wheel which has two motions, one of rotation about its axis, and
the other a reciprocating linear one up to and back from the composed line of
matrices The former is effected by toothed gearing and the latter by a cam
mechanism
The mouth above mentioned may be a slot, but it is generally a low of holes
Both it and the composed line are horizontal. The rotary motion of the
mould wheel 18 stopped when the mould registers with the mouth,
and the wheel is then moved up to the composed line, and the metal pot
mouth up to the other side of the mould. After the cast, both wheel and metal
pot are moved back and the wheel is turned on its axis until the mould is in
a vertical position and again moved forward, when the linotype 18 pushed out of
it by an automatic ejector into a galley
Referring to the accompanying drawings which are to be taken as part of this
specification and read therewith
Figure 1 is a sectional side elevation from the left hand side of the machine,
shewing the mould wheel in the ejecting position and the metal pot in its lear
position and on the point of being rocked forward.
Figure 2, a sectional plan corresponding therewith but omitting the mould
wheel:
Figure 3, a detail sectional elevation of the mouth piece, mould and adjacent
portions of the metal pot and mould wheel, showing how the mouth piece moves
on to and over the cleaning device.
Figure 4, a perspective view of the lug on the metal pot lever by which that
pot 18 rocked backwards.-
Figure 5, a vertical section showing the motal pot in the casting position:

page_text: Liga fear elevation of the pot mouth piece:
Figure 7, a vertical section on line 7-7 of Figure 6:
Figure 8, a partial longitudinal section on line 8-8 of Figure 6:
Figure 9, a longitudinal section on line 99 of Figure 13, including the pot
mouth piece and adjacent portion of the pot :
Figure 10, a front elevation of the means for holding the cleaning device to
the mould wheel:
Figure 11, a front elevation of the backing up plate:
Figure 12, an inverted plan of the holding and backing up plates:
Figure 13, a front elevation of the mould wheel in the ejecting position;
and
Figure 14, a section on the line 14-14 of Figure 13.
Figures 9 to 12 are on an enlarged scale
A is the mould wheel, a, the rise on the pot cam C to rock the metal pot B for-
ward into the casting position, B, the metal pot; b, a projection to engage in front
of the lug e, to lock the pot B back into its rear position; C, the metal pot cam
turning in the direction indicated by the arrows in Figures 1 and 5; D, a gear
wheel fast on the same shaft as the cam C and to the side of which the pio-
jection is made fast; d, the linotype mould carried by the mould wheel A,
E, the pot lever on which the cam C acts; F, the mouth piece of the pot B to
which it is removably held by the groove m¹, m, the fixed knife for trimming
the feet of the linotypes; 8, the wheel steadying sockets, s, the holes in the
mouth piece F through which the metal is injected into the mould d; s,, their
outwardly flared ends; and Y, the composed line of matrices held in the casting
position by bars N', N* The above mentioned parts are as heretofore
It has already been explained that the cleaning device is a plate when the
mouth piece is a slot, and a row of pins when it is a row of holes. The latter is
the usual construction and for that reason 18 the one chosen for illustration,
being shown best in Figures 6 to 9. n, n, are the pins held in a row on the
mould wheel A so as to register with the row of holes in the mouth piece F
when the mould wheel A 18 in the ejecting position; see Figure 1. The means
by which the row of pins n is held to the wheel A are shewn in detail in Figures 9
to 14. n,n are the pin heads. The pins n are carried by a perforated plate f,
each pin standing in its own perforation f* The plate f fits in the bottom of a
recess formed in the front face of the wheel A to receive it and in which
position it is held by screws fi passed through its ends into the said wheel, the
heads n of the pins n on the outside of the said plate These pins are held in
working position by a backing up plate g adapted to fit close up to the front
of the platef by having a groove along the rear face to fit over the series of
heads n. The pins n are separately insertible in or removable from the clean-
ing device by the detachability of the plate 9 from the plate f to which it is
held by screws 9³ ³, g³, are additional screws screwed into the wheel A, seg-
ments of their heads engaging in recesses in the front face of the plate g to
prevent its being bent by the strains to which it is subjected The pins are
slightly thinner than the width of the holes s so that each shall pass through the
respective hole freely but so as nevertheless to substantially occupy it during the
act of cleaning it The noses of the said pins stand in a plane just to the front
of that of the edge of the knife m, so as to clear it as the wheel A turns round.
as indicated in Figure 1. The pins n should project to the rear of the plate f
far enough to project bevond the mouth piece F, as shewn in Figure 9
The cleaning device above described is fixed to the wheel A at a right angle
with the mould d and moves as the said wheel turns on its axle, in advance of
the mould. as shewn in Figure 13.
When the composed line Y is in the position illustrated in Figure 5, the mould
wheel A. having its mould d registering therewith, is moved forward into the
nosition illustrated in the said figure. The rise on the cam C then engages the
lever E and rocks the pot B forward until the mouth piece F bears against the

page_text: back of the mould d as shewn The linotype is then cast and the pot B rocked
back by the engagement of the projection 6 with the lug c The wheel ▲ 16 next
moved back and then rotated through an angle of 270°, caying the mould d
over to the left-looking at Figure 13--and leaving it in the position illustrated
therein, and next moved forward until the mould d fits up to the ejection port
whereupon an automatic ejector ongages the linotype by its foot and pushes it
out of the mould d and through the ejection port into the galley already men-
tioned The mould wheel is held steady in each of its forward positions, by the
engagement of sockets 8 over pins fixed to the machine fiame in front of the
wheel and projecting towards it The wheel A 16 then moved back and afterwards
tuned on its axle until the mould wheel d 18 in the horizontal position first
mentioned All the motions just described as well as the means for effecting
them, are as heretofore. It has already been explained that the cleaning devico
stands on the mould wheel A at a right angle with the mould d and moves in
advance of the latter, so that when the mould 18 standing in the ejecting position,
the cleaning device registers with the pot mouth piece F
The cleaning device is made to do its work in the wax and by the means next
described
There is an additional use a¹ on the cam C, so positioned thereon with relation
to the 11se a alieady described, that it shall, while the mould wheel A 18 stand-
ing in the ejecting position, move the pot B forwards far enough for the holes s
in the mouth piece F to be pushed on fo and over the respective pins n as far as
18 illustrated in Figure 9 a² 18 a recess in the rear face of the wheel A to
receive the mouth piece F under the cucumstances The object of the invention
is accomplished if the holes s are passed quickly once to and fio over the pins ;
therefore the arcual length of the cam 1180 a 18 short accordingly. 18 a second
projection on the gear wheel D to engage the lug c to 1ock the pot B back again,
thereby completing the cleaning action of the device
When there are two moulds upon the wheel A, there is a second cleaning
device being a duplicate in all respects of the one just described
The length of
the device is always that of the longest mouth piece in the machine equip-
ment; and when a shorter one is substituted, all the pins n in excess are removed.
So with the plate mentioned as a substitute for the low of pins when the mouth
piece has a slot instead of a low of holes There may be one plate as long as
the shortest mouth piece and additional plates, one for each increase in length,
all the plates headed as are pins n, so that for each diminution or increase in the
working length of the mouth piece F, a corresponding length in plate or plates
can be taken out of the cleaning device or inserted in it.
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 18
-
1. In a linotype machine, the combination with the pot mouth, of a cleaning
device carired by the mould wheel so as to register with the pot mouth piece
when the said wheel is in the ejecting position; and means for moving the pot
mouth piece over the cleaner, as set forth.
2 In a linotype machine, the combination with the metal pot and the mould
wheel carrying the mould and the cleaning device, of means for moving the said
pot up to the mould for casting, moving it back, moving the mould wheel into
the ejecting position and the cleaning device into the cleaning position, and also
for moving the pot mouth piece over the cleaning device, as set forth
3 In a linotype machine, the combination of metal pot, fixed knife for
(trimming" the feet of the linotypes, mould wheel carving a mould and a
cleaning device positioned so as to clean the said knife, means for moving the
said pot up to the mould for casting, moving it back, moving the mould wheel
into the ejecting position and the cleaning device into the cleaning position and
also for moving the pot mouth piece over the said cleaning device, as set forth

page_text: 4. In a linotype machine, the combination with the pot mouth piece having a
row of holes, of mould wheel and cleaning device having a low of pins adapted
to register with the said holes respectively when the mould wheel is in the eject-
ing position and to clean them, as set forth.
6. In a linotype machine, the combination with the pot mouth piece having a
slot, of mould wheel and cleaning device having a plate adapted to register with
the said slot when the mould wheel is in the ejecting position, and to clean it,
as set forth.
6. In a linotype machine, the combination of mould wheel, cleaning device
cairied thereby in a recess there, pot mouth piece; mechanism for making
the cleaning device register with the pot mouth piece when the mould wheel is
in the casting position, cavity in the mould wheel to receive the mouth piece ;
and means for moving the mouth piece over the cleaning device, as set forth
7. In a linotype machine, the combination of mould wheel; fixed knife to trim
the feet of the linotypes and a device for cleaning the pot mouth piece recessed in
the said wheel to clear the said knife.
8. The herembefore described cleaning device having insertible or removable
members to adapt it to the working length of the mouth piece, and means for
holding all the members removably in cleaning position
CHAS S WOODROFFE,
Chartered Patent Agent.
CHAS S WOODROFFE,
Chartered Patent Agent.