Improvements in the Matrices of Linotype Machines,
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Matrices 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 WALTER HEAP, of The
Linotype Works, Broadheath, in the County of Chester, Engineer, do hereby declare
the nature of this invention to be as follows:-
The present invention relates to improvements in the matrices of linotype machines,
and the object of it is to provide improved means for holding the steel side walls of
the matrices described in the Specifications of Letters Patent 9732 of 1895, and
3085 of 1898, to the bodies thereof. In each of these specifications, the two side
walls are portions of separate plates. According to the present invention, the two
plates are connected by two bands which pass from one to the other across the rear
edge of the matrix body, one above and one below the formative cavity or cavities in
the said rear edge. These two plates and bands
stamping out of one piece. Both plates and bands fit in special recesses in the
are preferably produced by
sides and rear edge of the matrix body, so as to be flush with the surfaces of the said
sides and edges respectively. Neither plate extends from the rear edge of the
matrix body beyond the middle of the latter; preferably not so far. The top and
bottom edges of both plates are inclined towards each other thereby producing an
angular tab through which and the matrix body, one or more rivets are passed and
rivetted down to hold the improved pair of plates to the said body. Each hole in
the latter is countersunk at each end, while the tab is neither punched nor drilled
but pierced with a coned punch, thereby producing a hole with an annulus about it
which will be swaged down into the countersink by the spreading of the respective
end of the rivet.
Instead of the special recess being in and across the rear edge of the matrix, it
may be cut into the matrix body at, say, a right angle with the rear edge, a single
band only being used and that passed through the said recess, the two plates led down
the sides of the matrix body and held thereto by a rivet in the way described
above.
Dated this 11th day of May 1899 ♥
improvements in the Matrices of Linotype Machines]
We, WILLIAM HENRY LOCK, Manager and Secretary of The Linotype Company,
5 Limited, of 188, Fleet Street, in the City of London, and WALTER HEAP, of The
Linotype Works, Broadheath, in the County of Chester, Engineer, do hereby declare
[Price 8d.]

page_text: 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 matrices of linotype machines,
and the object of it is to provide improved means for holding the steel side walls of
the matrices described in the Specifications of Letters Patent 9732 of 1895, and 5
3085 of 1898, to the sides thereof.
In each of the specifications just mentioned, the two side walls of a matrix are
portions of separate plates. According to the present invention, the two plates are
connected by two bands which pass from one to the other across the rear edge of the
matrix body, one above and one below the formative cavity or cavities, both plates
and bands fitting in special recesses in the respective portions of the matrix body so
as to be flush with the surfaces of the said portions; or the two bands may be
replaced by a single one passing through the matrix body.
Referring to the accompanying figures which are to be taken as part of this
Specification and read therewith:
Figure 1 is a perspective view of a matrix body cut to receive the side walls according
to the present invention:
Figure 2 is a section on the line 2-2 of Figure 1:
Figure 3 is a perspective view of a matrix made according to the present
invention:
Figure 4 is a section on line 4-4 of Figure 3:
Figure 5 is a perspective view of a matrix made according to the present invention
but having its side plates modified in respect of their shape and nuinber of rivets:
Figure 6 is a perspective view of a modification of the invention:
Figure 7 is a plan of the two plates and bands for the matrix of Figure 3, before
they are bent:
Figure 8 is a perspective view of the same pierced and bent to be fixed to the said
matrix:
Figure 9 is a section on the line 9-9 of Figure 8:
Figure 10 is a plan of the two plates and bands for the matrix of Figure 5, before
they are bent:
Figure 11 is a plan of the two plates and bands of the matrix of Figure 6, before
they are bent:
Figure 12 is a perspective view of a matrix body cut to receive the side walls
according to another modification:
Figure 13 is a perspective view of the two plates and one band pierced and bent
to be fitted to the matrix body of Figure 12; and
Figure 14 is a perspective view of a matrix made according to the last mentioned
modification.
.
the
y is the matrix body; a, the rear edge of it; y, the notch in the edge a;
y", the formative cavity at
bottom of the said notch; y, the
vertical groove in each side face of the body y³¹; 10, the ridge between each
groove y¹ and the respective edge a; yo y, the two plates; y72, 72, the rivets;
1, 1, the countersunk rivet holes in the matrix body y3; 2, 2, the rivet holes in
the plates y; and 3, 3, the burrs to fit into the countersinks of the holes 2, 2.
Referring to Figures 1 to 11, 4, 4, are the bands which connect the two side
plates 90; 5, 5, the recesses in the matrix edge a in which they stand flush therewith
or even lower than that; 6, 6, the notches in each ridge y10 for the respective portions
of the plates 0; and 7, 7 pieces of edge a between each recess 5 and the notch y.
These pieces 7 effect the indispensable closure of the mould for the body of the
linotype above and below the cavity of that mould. They might be dispensed with if
the bands 4 are always flush with the edge a and too firm in that position to be
pressed out of it when the mould is forced metal-tight against the matrices before the
linotype is cast. A pair of plates y and their connecting bands 4, 4, are preferably
produced, by stamping them out of sheet metal, which gives the combination shewn
in Figures 7, 10 and 11. The top and bottom edges 8, 9, (or one only) may he sloped

page_text: towards the respective rivet hole 2, so as to produce a tab not wider than the rivetting
of the two plates to the matrix body y³¹ requires. When there is only one cavity y*,
one rivet may suffice, as indicated in Figures 1 and 2, but if there are two, two rivets
may be desirable, as indicated in Figure 6. The above described combination of a
pair of plates 300 and a pair of bands 4, is bent along the lines 10, 10, till the plates y⁹0
are parallel with each other and the holes 2, 2, opposite each other, the burrs 3, 3,
facing each other, as shewn in Figures 8 and 9. It is then ready for being rivetted
to the matrix body y³¹.
.
The modification of the invention illustrated in Figures 12, 13 and 14, consists in the
pair of bands 4 being replaced by a single one 11 which fits into a single recess 12
standing in the matrix body y³¹, at right angles with the edge a. The plates y extend
down the grooves y¹ and are rivetted to the matrix body in the same way as the
plates yºº.
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 matrix body, pair of plates and pair of bands, as set forth
with reference to Figures 1 to 11.
2. The combination of matrix body, pair of plates and single band as set forth with
reference to Figures 12 to 13.
CHAS. S. WOODROFFE,
Chartered Patent Agent, 188, Fleet Street, London, E.C.