Improvements in the Delivery Spouts and Mouths of the Metal Pots of Linotype Machines.
Year: 1896

page_text: Pate of Application, 19th June, 1896
Complete Specification Left, 15th.Apr., 1897-Accepted, 15th May, 1897
i..
PROVISIONAL SPECIFICATION.
Improvements in the Delivery Spouts and Mouths of the Metal Pots
of Linotype Machines.
We, THE LINOTYPE COMPANY, LIMITED, Sole Proprietors of, and Manu-
facturers, Vendors and Licensors under, the "Linotype" Patents, JOHN PLACE,
Engineer, both of No. 188 Fleet Street, in the City of London, and HERBERT
PEARCE of No. 57 Belsize Park, London, Engineer, do hereby declare the nature
of this invention to be as follows:
The present invention relates to improvements in the delivery spouts and mouths
of the metal pots of linotype machines.
It has hitherto been the practice to diminish the sectional area of the mouth
piece of the spout which delivers the molten metal from the metal pot of a
Mergenthaler linotype machine to its mould, by stepping the sides of it. Such
stepping accomplishes the necessary alteration in the sectional area, but it has
been found to be attended by several drawbacks. It impedes the flow of the metal,
turns the latter back in whirls, leads to the formation of bubbles in it, and
cools it.
One part of the invention 'relates to the prevention of the drawbacks above
mentioned, and consists in substituting a contour made up of curves for the stepped
one indicated above. The resulting curved surfaces approach each other, as they
get nearer to the actual month of the mouth piece.
A second feature of the invention relates to the actual mouth. Heretofore, this
bas consisted of a line of holes. For this line of holes, there is now substituted a
single slot of the same length as the mould. This slot is narrower than the depth
of the mould, where the two meet, but is gradually narrowed in a rearward direction
to where it and the said curved surfaces meet, so as to impart both upward and
downward directions' to the metal before it enters the mould."
Frequent changes in the size, of the mould, are required, more especially in its
length; and this requisition has been met by several different inventions. A third
part of the present one relates to the adjustability of the mouth of the spout, where
it meets the mould, in respect of the length of it; and includes any means by which
such adjustability may be secured. A preferred means consists of a stopping plate
adapted to slide in a longitudinal groove over the actual mouth of the mould, from
one end. This groove is sunk in the face of the mouth piece so that the plate is
flush therewith. There is a second, but vertical, groove in the face of the mould,
adapted to receive one of a series of locking plates of varying widths. This groove
is continued across the end of the stopping plate. The sides of it may be undercut
and the edges of the locking plate bevelled to engage thereunder. The said plate
locks the nose of the stopping plate in the position due to the width of the former,
by standing behind the shoulder on the stopping plate produced thereon by the.
above mentioned continuation of the groove across it.
1906'
PHILLIPS & LEIGH,
Agents for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in the Delivery Spouts and Mouths of the Metal Pots
of Linotype Machines.
We, THE LINOTYPE COMPANY, LIMITED, of No. 188 Fleet Street, in
the City of London, Sole Proprietors of, and Sole Manufacturers, Vendors
and Licensors under, the "Linotype" Patents, JOHN PLACE formerly of the
above address but now of No. 11 Hulme Street, Oxford Road, Manchester, in the
County of Lancaster, Engineer, and HERBERT PEARCE formerly of No. 57 Belsize
Park, in the County of Middlesex, but now of No. 11 Hulme Street, aforesaid,
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 delivery spouts and mouths
of the metal pots of linotype machines. The accompanying figures illustrate the
application of the invention to the metal pot of the Mergenthaler linotype machine
described in the Specification of Letters Patent 145821800. It must however, be
borne in mind that the invention is not restricted in its application to the machine
above mentioned, but that it is equally applicable to the metal pots of any linotype
machines. It is only because the invention has been conceived and developed
with special reference to the Mergenthaler machine aforesaid, and because that
machine is the only linotype machine in practical use in this country that the
application of it thereto has been selected for illustration and detailed description.
It has hitherto been the practice to diminish the internal sectional area of the
mouth piece of the spout which delivers molten metal from the metal pot of a
Mergenthaler linotype machine to its mould cavity, by stepping the sides of it.
Such stepping duly accomplished the necessary diminution of the sectional area;
but it was found to be attended by several drawbacks. It impedes the flow of the
metal, turns the latter back in whirls, leads to the formation of bubbles in it, and
cools it..
The first part of the present invention relates to the prevention of the drawbacks
above mentioned, and consists in substituting a contour made up either entirely or
principally of curves for the stepped one mentioned above. The curved surfaces
approach each other as they get nearer to the actual mouth of the mouth piece.
The second part of the same invention relates to the actual mouth. Heretofore,
this has consisted of a line of holes. For this line of holes, there is now substituted
a single slot.
The third part of the invention relates to the same part of the machine.
Frequent changes in the size of the mould cavity are necessary, more especially in
the length of it and this requisition has been met by the mould cavity being
adjustable in that respect. Such adjustability, as well as the means by which it is
secured are both described at length in the Specification of Letters Patent 25491895.
Hitherto, when the size of the mould cavity has been changed, it has been
necessary to substitute a mouth piece having a mouth corresponding with the
altered cavity, for the one previously in the metal pot. The object of this third
part of the present invention is to make the actual mouth correspondingly
adjustable, so as to obviate the substitution of one mouth piece for another.
Referring to the accompanying figures which are to be taken as part of this
specification and read therewith:-
Figure. 1 is a sectional side.elevation of the front part of the metal pot, the mould
block containing the mould cavity and the intermediate parts, shewing them in the
casting position.

page_text: Figure 3.is a section taken along the line 3-3 ot Figure 2, through the mourn
piece and the front portion of the spout.
Figure 4 is a vertical section taken along the line 4-4 of Figure 2.
Figure 5 is a vertical section taken along the line 5-5 of the same figure.
Figure 6 is a front elevation of one of a series of mouth piece liners.
Figure 7 is a plan corresponding with Figure 6.
Figure 8 is an end elevation looking at Figure 6 from the right hand.
Figures 9 and 10 are front elevations of mouth piece liners of different lengths
and both shorter than the one illustrate in Figure 6.
Figure 11 is a perspective view of intermediate piece, mouth piece and a
modified liner.
Figure 12 is a plan of the liner illustrated in Figure 11.
Figure 13 is a perspective view of a metal pot shewing the mouth fitted with a
further modified liner.
Figure 14 is a perspective view from the rear of the mouth piece and liner
illustrated in Figure 13.
Figure 15 is a vertical section' taken along the line 15-15 of Figure 13.
Figures 16 and 17 are perspective views, respectively front and rear, of the liner
illustrated in Figures 13 to 15.
V is the metal pot and 10 the spout through which the molten metal is delivered
into the mould cavity o within the mould block o". This latter is carried by the
mould wheel O to the front of which it is made fast by screws passed into it from
the front through the flanges o, o. The mould block itself is continued through
a slot in the wheel in order that the mouth piece of the metal pot V may fit up
to it. The spout 10 is continued through an intermediate piece which is made
fast across the front of the metal pot. 12 is the mouth piece. So far the parts.
just described are the same as heretofore.
Referring to the first part of the invention v13, 13, are the curved contours.
They extend from the intermediate piece v to about half way through the mouth
piece in the direction of the mould cavity o, approaching each other till they
inerge in the mouth described in the next paragraph.
Referring to the second part of the present invention, the actual mouth is a
slot v opening out through the front face of the mouth piece 12 instead of a line
of holes as heretofore. It is at least as long as the longest mould cavity o which
may be mounted upon the mould wheel O, is narrower than the said cavity, and
stands symmetrically opposite it with reference to the top and bottom of the latter,
as clearly shewn in Figure 1. Further, it is gradually narrowed in a rearward
direction to where it meets either the curved contours 13, 13, or an intermediate
and connecting slot 4 which is of the same width as the narrowest part of the
mouth. The object of the diverging top and bottom of the said mouth of is to
impart both upward and downward directions to the metal before it enters the "
mould cavity o.
Referring to the third part of the invention, the preferred means by which
the before mentioned desired adjustability of the mouth is conferred, consists
preferably, of a liner adapted to slide along and to practically fill the said
inouth. The necessary variations in the length of the mouth v are provided for
by either a series of liners each of a different length, or by the combination
of one liner of the maximum length and a device capable of locking the nose
of the said liner in any desired position, or by a single liner of the maximum
length.
A series of liners comprises as many liners, all of different lengths, as there are
different lengths of mould cavity o. Three different lengths are illustrated in
Figures 2 to 10, it being assumed that that is the number of different lengths
to which the mould cavity o is capable of being adjusted. Each liner V' corre-
sponds in cross sections with more or less of the portion between the slot through
the mouth piece 2, that is to say, with the muth », (excepting the diverging

page_text: top and bottom of it,) the connecting slot ", (if there is one) and with more or
less of that portion which lies between the contours 3, . The front face of a
liner V stands flush' with that of the mouth piece when it is in its place, a.
position in which it is held by the central constriction of a slot through the mouth
piece. A liner V is shewn as terminating at its left end in a head V to receive
which there is provided a suitable recess in the face of the mouth piece at a
short distance from its left hand end. The width of the said recess has the effect
of facilitating the introduction of a liner V into its slot, which introduction is
effected from the front of the mouth piece. The liner V is pushed through the
recess up to the head V2 and then slewed round until the front and narrower,
portion of it enters the slot in the mouth piece e from the rear, and the head fits
into the recess. This bead V' is kept back in its recess by a locking plate V
adapted by its bevelled edges to engage in a double V groove V extending from
the top to the bottom of the front face of the mouth piece and through that
of the head. If preferred, the slot in which the liners V' slide, may be continued
outwards through the left hand side of the mouth piece ", the head V and
its recess being flush therewith. It is to be borne in mind that there is not
room on the right hand side of the metal pot V for introducing a liner V' into
its slot.
The combination of one liner of maximum length and in addition thereto long
enough to project beyond the end of the mouth piece us, with a locking device, is
illustrated in Figures 11 and 12. V is the liner. The relations between the front
face of it and the front face of the mouth piece v12, and between the liner itself and
the slot in which it slides, as well as the shape of the slot are as described with
reference to Figures 1 to 10. The locking device consists of a locking plate Ve
baving bevelled edges, a double V groove V extending from the top to the
bottom of the front face of the mouth piece »", and on which the plate Vis
adapted to engage, together with a series of vertical notches V extending across
the front face of the liner V, each one of the same size and shape as the groove V7
and adapted to register with the two portions of it and to make a continuous groove
and seating for the plate V.
In the modification of this part of the invention illustrated in Figures 13 to 16,
the intermediate piece is replaced by a forwardly projecting nozzle of the
pot V. The mouth piece le is wider behind than in front and fits into a groove
extending across the nozzle 1. The slot inside the mouth piece is of the same
cross section as already described. V is the liner. It slides in grooves in the
rear face of the mouth piece le with its rear face flush with the rear face of the
said mouth piece, fitting between the latter and the spout el, as shewn in Figure 15.,
Its nose carries an extension V10 adapted to completely fill the slot and to thereby
give it a blind end.
It must be understood that the mouth piece as a separate piece fitting over
the intermediate piece; the fitting of the intermediate piece as a separate
piece across the front of the metal pot V, as well as the fitting of the mouth
piece within the nozzle v are not features of the invention, but only con-
venient constructional methods already in use at the date of the present
inventiou.
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. In a linotype machine, the combination with the delivery spout of the metal
pot of it, of the curved contours, as set forth.
2. In a linotype machine, the combination in the mouth of the metal pot and
with the mould cavity of the machine, of divergent top and bottom of the slot.
constituting the said mouth.
3. The combination with the mouth of the metal pot of a linotype machine, of
means for making the said mouth adjustable in respect of its length.

page_text: 4. The combination with the delivery spout from the metal pot of a linotype
machine, of a slot and a series of liners each adapted to fit in the slot for the
purpose of limiting its length.
5. The combination with the delivery, spout from the metal pot of a linotype
machine, of a slot, a series of liners each adapted to fit in the said slot for the
purpose of limiting its length, and a locking plate adapted to keep the end of a
liner in its working position.
6. The combination with the delivery spout from the metal pot of a linotype
machine, of a slot, a single liner adapted to fit therein, and a locking device
adapted to lock the nose of the said liner in any desired position in the said
slot.
7. The combination with the delivery spout from the metal pot of a linotype
machine, of a slot extending across the spout of the pot and a single liner with
extension adapted to fit in the said slot and give it a blind end.
8. In a linotype machine, the combination of delivery spout from the metal pot;
curved contours; mould cavity; and divergent top and bottom of the slot
constituting the mouth of the metal pot; as set forth.
9. In a linotype machine, the combination of delivery spout from the metal pot;
curved contours; mould cavity; divergent top and bottom of the slot constituting
the mouth of the metal pot; and means for making the said mouth adjustable in
respect of its length; as set forth.
10. In a linotype machine, the combination of delivery spout from the metal
pot; curved contours; mould cavity; slot constituting the month of the metal
pot and having divergent top and bottom; and a series of liners each adapted
to fit in the said slot for the purpose of limiting its length; as set forth.
11. In a linotype machine, the combination of delivery spout from the metal
pot; curved contours; mould cavity; slot constituting the mouth of the metal
pot and having divergent top and bottom; a series of liners each adapted to
fit in the said slot for the purpose of limiting its length; and a locking plate
adapted to keep the end of a liner in its working position, as set forth.
12. In a linotype machine, the combination of delivery spout from the metal
pot; curved contours; mould cavity; slot constituting the mouth of the metal pot
and having divergent top and bottom; a single liner adapted to fit therein; and a
locking device adapted to lock the nose of the said liner in any desired position in
the said slot; as set forth.
13. In a linotype machine, the combination of delivery spout from the metal
pot; curved contours; mould cavity; slot constituting the mouth of the metal
pot, extending across the spout thereof and having divergent top and bottom; and
a single liner with extension adapted to fit in the said slot and give it a blind end;
as set forth.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicants.