A New or Improved Process of Preparing or Reproducing Type or Matrices.
Year: 1895

page_text: Date of Application, 31st Dec., 1895
Complete Specification Left, 31st Oct.. 1896-Accepted, 24th Dec., 1896
PROVISIONAL SPECIFICATION.
A New or Improved Process of Preparing or Reproducing Type or
Matrices..
MA
I, ODDUR VIGFÚS SIGURDSSON, of 100 St. George's Road, Leyton, in the
County of Essex, Engineer, do hereby declare the nature of this invention to be'as
follows:-
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My invention relates to a new or improved process of preparing or reproducing
type or matrices whereby a great saving of time and labour, as compared with the
process in general use, is effected.
The process in general use may briefly be described as follows. Let us assume
that it is desired to prepare or reproduce the type representing, a given letter.
A type measuring machine, consisting of a combination of microscope and
micrometer gauge, is taken, and with this a large number of measurements made of
the letter in question, the number of such measurements varying with the complication
of the form of the said letter. The measurements are usually accurate to one half
thousandth of an inch. Then a drawing is made from these measurements on a scale
of say one hundred times larger. Having made this drawing the operator takes a
pautograph, having a tracing or following stylus at one end and a cutting needle
or reproducing stylus at the other, and traces or follows the outline of the drawing
with the former stylus whilst the reproducing stylus cuts out the configuration of
the letter into a sheet of wax mounted on a zinc plate. The letter cut in the wax
is say one fourth of the size of the drawing or 25 times that of the actual type.
This reproduction in wax is used as a matrix for an ordinary electrotype.copy,
which is put on the bed of another pantograph such as is used for cutting dies or
punches. The reproducing end of this pantograph cuts out the letter on a block of
steel in relief, which thus serves as the punch for punching the matrices in the usual
well known way.
By means of my invention the taking of the measurements and the making of
the drawing are entirely avoided. The type is taken and by means of a reflector
or reflectors and a lens or lenses an image of the type is thrown upon a suitable
receiving surface for example a sheet of ground glass. The tracing or following
stylus of the pantograph is then passed over the outline of the said immage, whilst
the reproducing stylus cuts the wax as in the former process. The rest of the two
processes is or may be the same.
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page_text: A New or Improved Process of Preparing or Reproducing Type or
Matrices.
I, ODDUR VIGFUS SIGURDSSON, of 80 Shaftesbury Road, Ravenscourt Park,
Hammersmith, in the County of Middlesex, formerly of 100 St. George's Road,
Leyton, in the County of Essex, Engineer, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described in and by the following statement:—
My invention relates to a new or improved process of preparing or reproducing
type or matrices whereby a great saving of time and labour, as compared with the
process in general use, is effected.
The process in general use may briefly be described as follows:-
Let us assume that it is desired to prepare or reproduce the type representing
a given letter,-
-
A type measuring machine, consisting of a combination of microscope and
micrometer gauge, is taken, and with this a large number of measurements is
made of the letter in question, the number of such measurements varying with
the complication of the form of the letter. The measurements are usually accurate
to one half thousandth of an inch. Then a drawing is made from these
nieasurements on a scale of say one hundred times larger. Having made this
drawing the operator takes a pantograph, having a tracing or following stylus at
one end and a cutting needle or reproducing stylus at the other, and traces or
follows the outline of the drawing with the former stylus, whilst the reproducing
stylus cuts out the configuration of the letter into a sheet of wax mounted upon a
zinc plate. The letter cut out in the wax is say one fourth of the size of the
drawing or twenty-five times that of the actual type. This reproduction in wax is
used as a matrix for an ordinary electrotype copy, which is put on the bed of
another pantograph such as is used for cutting dies and punches. The reproducing
end of this pantograph cuts out the letter on a block of steel in relief, which thus
serves as the punch for punching the matrices in the usual well known way.
By means of my invention, the taking of the measurements and the making of
the drawing are entirely avoided.
In order that my invention may be readily understood I shall now proceed to
describe how it is to be or may be carried into effect and for that purpose I shall
refer to the accompanying drawing which diagrammatically represents one way of
carrying my invention into effect.
I take a type 1 and by means of reflectors 2, 3, I throw the light from two
jets 4, 5 upon it and project its image through the lenses 6, 7, 8, 9, and 10, upwards
upon the horizontal sheet of ground glass 11 on the bench 12.
The image of the type being now magnified to the desired size, and clearly
represented upon the sheet of ground glass 11, the tracing or following stylus 13
of the pantograph 14 is passed over the outline of the said image whilst the
reproducing stylus cuts the wax as in the beforementioned process in general use.
The reproduction in wax is then used as a matrix for an electrotype copy in the
well known manner.
ני
I desire it to be understood that I do not limit myself to the employment of
such apparatus as I have herein before mentioned. It is obvious for example that
some of the parts specified and illustrated might be omitted. The essence of my
invention consists in throwing the image of the type upon a suitable receiving
surface, and then by means of a pantograph making a reproduction or matrix
suitable for use in the manner well known in the art.
?

page_text: Having now particularly described and ascertained the nature of my saidi
invention and in what manner the same is to be performed, I declare that what.
I claim is
The new or improved process of preparing or reproducing type or matrices.
substantially as set forth.
Dated this 30th day of October 1896.
For the Applicant,
J. G. LORRAIN, M.I.E.E., M.I. Mech. E.,
Norfolk House, Norfolk Street, Strand, London, W.C.,
Chartered Patent Agent.