An Improvement relating to Linotype and like Machines.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
An Improvement relating to Linotype and like Machines.
I, JOSEPH REED, of The Chronicle Office, Westgate Road in the City and County
of Newcastle-on-Tyne, Engineer, do hereby declare the nature of this invention to
be as follows:-
دو
.This invention relates to linotype and similar machines and has for its object to
provide means whereby the "slug or bar cast in any particular machine of a
series may be readily identified when required, such being very difficult under
existing arrangements.
For this purpose, I mark the mould and bar produced therein with corre-
sponding symbols by slightly grooving in either or all of the inner faces of the
former the desired symbol or symbols which in the process of casting is or are
transferred to the bar.
The grooving may be produced in any ordinary way chemically or mechanically
while the symbols may conveniently be numerals or letters.
Dated this 5th dow of W 1007
J. C. CHAPMAN.
Agent.
COMPLETE SPECIFICATION.
An Improvement relating to Linotype and like Machines.
I, JOSEPH REED, of The Chronicle Office, Westgate Road in the City and County
of Newcastle-on-Tyne, 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:-
This invention relates to linotype and similar machines and has for its object to
provide simple and effectual means whereby each and every "slug" or bar, cast
in any particular machine of a series may be readily identified when required;
this identification has heretofore, under existing arrangements, been a matter of
considerable difficulty, necessitating sometimes, the close examination of every
machine before the source of error could be detected and rectified, thus involving
a large amount of time and skill.
In order to obviate these disadvantages, according to my invention, I mark each
mould and the bar produced therein with corresponding symbols and I effect this
by slightly grooving or sinking in either or all of the inner faces of the mould any
suitable or des red symbol or symbols, which, in the process of casting the metal,
is or are transferred to, and produced upon, the bar.
I will, in full explanation of my invention, refer to the accompanying drawings

page_text: :
in which Fig. 1 is a view of the inside face of the upper part of a mould, such
as is ordinarily used in linotype machines and Fig. 2 is a longitudinal section on
line W-X thereof. Fig. 3 is a plan of the bar or slug" cast in the mould
and Fig. 4.a section on line Y-Z thereof.
66
The symbols selected for illustration in the drawings consist of the numerals 1.
and 8 forming the number 18, and, as will be seen from Figs. 1 and 2, they are
grooved out of the material of the mould so that during the operation of the
m: chine the same symbols are transferred, in the process of casting, to the bar or
slug" and permanently produced thereupon as illustrated in Figs. 3 and 4.
*
The symbols, instead of being numerals as indicated above, may, of course, as
conveniently be letters or other identifying marks grooved in the upper or lower
part or in the ends of the mould; int any case, however, the height of the symbols
on the bar must be such as not to interfere with its free ejection from the mould,
the height necessary being very inconsiderable.
In practice, I find it very efficient to make the height about one thousandth
part of an inch.
The grooving or sinking of the symbols may be effected either chemically by
acid action or mechanically by the use of a suitable tool in any of the usual ways.
By my invention, in a number of bars cast in different machines, it is made
easy to ascertain the machine in which any particular bar was produced, thus
rendering any defects existing in such machine, as shown by the bar, capable of
detection at once and hence repair can be accomplished without so much trouble
and expense as hitherto.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:
In linotype and like machines, for the purpose of identifying the mould in
which any particular bar has been cast, grooving or sinking in each mould a mark
or symbol which, during the process of casting the metal, is transferred to the bar
or slug" and permanently reproduced thereupon, substantially in the manner
herein described and illustrated in the drawings.
"
Vabad th 1981 day of Catabor 1897
ויתית
Lotobar 1897
For the Applicant,
J. C. CHAPMAN.
70 Chancery Lane, London, W.C., and
.3 St. Nicholas' Buildings, Newcastle-on-Tyne Chartered Patent Agent.