Improvements in the Ejector Blades of Linotype and analogous Machines.
Year: 1894

page_text: Date of Application, 11th May, 1894
Complete Specification Left, 11th Feb., 1895-Accepted, 30th Mar, 1895
PROVISIONAL SPECIFICATION.
Improvements in the Ejector Blades of Linotype and analogous
Machines.
We, THE LINOTYPE COMPANY LIMITED, of No. 6 Serjeant's Inn, Fleet Street,
in the City of London, Licensors and Vendors under the " Linotype" Patents,
and ODDUR VIGEUS SIGURDSSON of No. 11 Hulme Street, Oxford Road,
Manchester, in the County of Lancaster, Engineer, do hereby declare the nature
of this invention to be as follows:-
Our invention relates to improvements in the ejector blades of linotype and
analogous machines and the object of it is to obviate the necessity of changing the
ejector each time that the mould in the machine is changed for one of a different
size, especially for one of a smaller size.
Linotypes or printing bars vary in respect of two dimensions, their length and
their thickness, and the ejector blade of a linotype machine is constructed, according
to our invention, in such a way that it can be modified in respect of both the said
dimensions, as distinguished from replacing it by another, and that too, without
detaching the whole blade from the-machine.
In carrying the invention into effert, a bar thinner and shorter than the blade is
provided and is made fast by one end to the ejector head, or equivalent part, in
such a way that it shall stand within the plane of the travel of the said blade.
The bar in question is hereinafter referred to as the stock. A plate is provided
for each size of mould, to make out the stock to the proper dimensions of the
ejector blade as such dimensions may be required to work in such mould. Each
plate is slotted longitudinally, the slot allowing it to embrace the stock edgewise,
and stand in the sanie plane with it. When it is in this position, the plate end
fits up to the ejector head, and the nose of the stock up to the internal end of
the slot.
The plates above mentioned are of various widths, and of various thicknesses
along their noses according to the lengths and widths, respectively, of the mould
cavities. The operative thickness of a plate extends for only a short distance
back from the nose or front edge of it, the remaining portion in the case of all the
plates of the series being of one normal thickness, thinner than the said nose or
front edge.
Any suitable devices may be used to hold the plate to the stock in the plane of
it and to lock it to the said stock. The plate is held in the plane of the stock by
suitable side guides and by feathers and tenons on either the stock or the plate
adapted to engage in or with respectively. corresponding parts on the other of
them. A plate is locked to the stock by spring fingers or hooks, retractable into
the stock by any suitable means, and adapted to automatically engage edge on into
the plate from the edges of the stock.
Dated this 11th day of May 1894.
PHILLIPS & LEIGH,
Agents for the Applicants.

page_text: Improvements in the Ejector Blades of Linotype and analogous
Machines.
We, THE LINOType Company, LIMITED, of No. 6 Serjeant's Inn, Fleet Street,
in the City of London, Licensors and Vendors under the "Linotype" Patents, and
ODDUR VIGFÚS SIGURDSSON of No. 11 Hulme Street, Ox:ord Road, Manchester,
in the County of Lancaster, 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:-
.
Our invention relates to improvements in the ejector blades of linotype and
analogous machines and the object of it is to obviate the necessity of changing the
blade each time that the mould in the machine is changed for one of a different
size, especially for one of a smaller s.ze.
Linotypes or print ng bars vary in respect of two dimensions, their length and
their thickness, and the ejector blade of a linotype machine is constructed, according
to our invention, in such a way that it can be modified in respect of both the said
dimensions, as distinguished from replacing it by another; and that too, without
detaching the whole blade from the machine.
In carrying the invention into effect, a bar (which may be thinner and shorter
than the blade) is provided. It is made fast by one end to the ejector head, or
equivalent part, in such a way that it shall stand within the plane of the travel of
the said blade. The bar in question is hereinafter referred to as the stock,
A plate is provided for each size of mould, to make out the stock to the proper
dimensions of the ejector blade as such dimensions may be required to work in such
mould. Each plate is slotted longitudinally, the slot allowing it to embrace the
stock edgewise, and stand in the same plane with it. When it is in this position,
the plate end fits up to the ejector head, and the nose of the stock up to the internal
end of the slot.
The plates above mentioned are of various widths, and of various thicknesses
along their noses according to the lengths and widths, respectively, of the mould
cavities. The operative thickness of a plate may extend for only a short distance
back from the nose or front edge of it, the remaining portion in the case of all the
plates of the series being of one normal thickness, thinner than the said nose or
front edge.
A medification of the invention allows the plates and stock to be of an uniform
thickness, and the plates to stand parallel with the stock instead of embracing it.
Any suitable device may be used to hold a plate to the stock in the plane of it
and to lock it to the said stork. We propose that the plate shall be held in the
plane of the stock by suitable side guides and by feathers and tenons on either the
stock or the plat, adapted to engage in or with respectively corresponding parts
on the other of them. A plate is lucked to the stock by spring fingers or hooks,
retractable into the plate or into the stock, by any suitable means, and adapted to
automatically engage edge on into the other of them.
Referring to the accompanying drawings which are to be taken as part of this
Specification and read therewith:
Figure 1 is a side elevation of an ejector blade made according to the present
invention:
Figure 2 is a plan of the same :
Figure 3 is a side elevation of the opposite side of the ejector blade illustrated
in the preceding figures:
Figure 4 is a side elevation of the ejector blade stock :
Figure 5 is a side elevation of the detached plate :

page_text: Figure 6 is an inverted sectional plan taken on the line 6-6 of Figure 5:
Figure 7 is a vertical section taken on the line 7-7 of Figure 5:
The foregoing 7 figures illustrate also one and the same device for holding the
plate to the stock.
Figure 8 is a side elevation of an ejector blade made according to the present
invention, but modified in respect of the shape of the plate, the position of the
stock on the head and the device for holding the plate to both :
Figure 9 is a plan of the same:
Figure 10 is a vertical section taken on the line 10-10 of Figure 8:
Figure 11 is a side elevation of the detachable plate illustrated in the three
preceding figures :
Figure 12 is a side clevation, and Figure 13, a plan, of a modified form of the
present invention according to which the plate is as long as the stock and both of
the same thickness throughout.
Referring to Figures 1 to 7, a is a plate by which the present invention is
incorporated with the ejector head. By the latter term, we mean the front end of
the ejector slide. This plate a may be of any suitable shape and the means for
incorporating it with the said head may be of any suitable type. Convenience
suggests that it be rectangular in shape, of the proportions shewn, and be held to
the ejector head by means of screws or holding pins passed through holes a'. This
plate a is hereinafter referred to as the bead plate to prevent contusion of ideas.
b is the stock. It is a bar made in one piece with the head plate from which it.
projects at right angles. It is to be noticed that it does not project from the
middle of the head plate but from nearly one end of it. The last mentioned end
corresponds with the head of the line, which head may be considered as a constant;
the shortening or lengthening of a line, due to change of front, shewing itself at.
the other end. Assuming that the maximum difference in length of line is one.
half the length (or height, looking at the drawings) of the head plate a, then must
the stock be set well within the dimensions of the shortest line. The stock is
shorter than the ejector blade. By ejector blade is to be understood the combination
of stock band plate a next described.
e is one of the series of plates with which each ejector head is provided. A full
series of plates is one for each size of mould used in the machine. Each plate has
a longitudinal slot c formed in it, of the exact size of the stock b, and at such a
distance from its bottom edge that, when the plate is made to embrace the stock
in the plane thereof, the said bottom edge will be aligned with the bottom edge a
of the bead plate a, and its back edge c³ fit close up to the front edge a³ of the said
head plate.
€
The width of the plate e corresponds with the length of the cavity of the corre
sponding mould; and the thickness of it, with the wilth (thickness of the linotype)
of the said cavity. It is not absolutely necessary that the plate e and the stock b
should be as thick throughout as the mould cavity is wide. It is enough if the
leading or front edge of the plate e possesses the proper thickness. Such possession
is clearly illustrated in Figures 1, 2, 3, 5, 6 and 7.
It is obvious that the practical utility of the invention cannot be enjoyed unless.
proper provision be made for holding the plate and the stock (then the ejector
blade) together in one and the same plane and for separating them when an ejector
blade of a different size is required. The present invention does not limit us in
respect of either the type or the details of the said provision. That illustrated
may be accepted as practically sufficient for the purpose. It consists of the
steadying and the locking devices. The steadying devices are tenons e, with
mortices a, a, at one end of the plate e, and a ten on and mortise near the
other. The tenons are on the back edge of the plate. These tenons have
bevelled rear edges. The mortises a³ are all on the same side of the head plate a
and in the front edge of it. Further, they are undercut to receive each bevelled
edge above mentioned, so that when the tenons are engaged in their respective
mortises a¹, there is a steadying contact in each engagement between four surfaces.

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The tenon projects from the front end of the stock b and engages in a mortise cª
opposite to it in the front end of the slot e¹,
The locking device illustrated is as follows. d is a bolt. It is a thin flat bar
adapted to work in and out of a longitudinal slot d' formed in the plate e half way
between its sides. This formation is conveniently effected by removing the
necessary quantity of material and fixing a cover plate d' over the resulting cavity.
d³ is the pivot of the bolt. It stands at right angles with the sides of the plate c.
d is the bolt staple. It is a sloping groove cut in the top edge of the stock b
parallel with the sides of the latter. The position of the bolt d is so arranged in
the plate e that the bolt staple d' shall be at some appreciable distance behind the
front end of the stock. is the bolt spring. d is a slot through the plate c and
through which the end of the bolt d always shews. Through this end there is a
hole d. The width of the slot de is sufficient to allow of the unlocking motion of
the bolt, which is effected by inserting the pointed end of any suitable lever in the
hole d and raising it.
The plate e is fixed to both the stock and the head plate a by sliding it longi-
tudinally from the front over the stock and in the plane of it until the bolt d locks
into its staple d. When the bolt has been unlocked, the plate e is detachable from
the stock and head plate.
Referring to Figures 8 to 11, the stock b projects from the heal plate a at the
bottom of it instead of from near the end. Consequently the slot c¹ of the con
struction illustrated in Figures 1 to 7- becomes a longitudinal rabbet . The
locking device is an angular tooth e projecting from the bottom edge of the plate c
and in the plane of it. Its front edge preferably vertical. e¹ is a notch of
corresponding contour in the top edge of the stock band in the plane of it, in which
notch the tooth e is adapted to fit.
The plate e is fixed to the head plate a and stock b in the way already described,
the tooth e sliding over the side of the stock on its way to the notch e'.
As soon
as the engagements between the tenons and mortises are completed, the tooth is
opposite the notch and is sprung into it by the natural resilience of the plate c.
The latter is unlocked by pushing the tooth e out of the notch el laterally.
In all other respects, the improved ejector blade illustrated in Figures 8 to 11,
is the same as the one illustrated in Figures 1 to 7 and described therewith.
Referring to Figures 12 and 13, the modification consists in making the blade c
as long as the stock band both of the same thickness throughout. The locking
device is of the same construction as illustrated in Figures 1 to. 7 and described
therewith.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The combination with the ejector slide, of stock, detachable and changeable
plate, and devices for locking the latter to the former and for steadying it in that
position, as set forth.
2. The combination with the ejector slide, of stock, a series of detachable and
interchangeable plates, and devices for locking each of the latter, one at a time, to
the fornier and for steadying it in that position, as set forth.
3. The hereinbefore described combination of detachable and interchangeable
plates with the ejector slide, as set forth.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents tor the Applicants.