Improvements in the Method of and Apparatus for the Production of Matrixes for Stereotyping.
Year: 1890

page_text: Date of Application, 26th Feb., 1890
Complete Specification Left, 26th Nov., 1890--Accepted, 24th Jan., 1891
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Apparatus for the Production
of Matrixes for Stereotyping.
I, MARK SMITH, of the "Guardian" Printing Works, Blackfriars, Manchester, in
the County of Lancaster, Printers' Engineer, do hereby declare the nature of this
invention to be as follows:
--
"
Matrixes for stereotyping are at present commonly produced by first beating the
paper upon the face of the type contained in the forme by means of brushes
and second by passing the paper covered forme under the roller of a mangle,"
the pressure exerted by which consolidates the matrix. According to this method,
the total pressure is at once applied and there is considerable risk of battering or
otherwise damaging the face of the type which it is the object of this invention
to avoid.
In proceeding according to these improvements, I apply the pressure gradually or
step by step during the passage of the paper covered forme in one direction through
the mangle.
For the purpose of this invention I construct the mangle with two or more, and
preferably with three, rollers each of which exerts a portion only of the total pressure
or consolidating effect. The rollers have their lower surfaces on a slightly inclined
imaginary plane so that the first roller compresses the paper to (for example) one
third of the total extent, the second roller to two thirds, and the last roller com-
pletes the compression. This last roller therefore may occupy the position and be
in other respects, the same as or equivalent to the similar roller in an ordinary stereo-
typer's mangle.
Dated this 25th day of February A.D. 1890.
WILLIAM E. HEYS,
Agent for the Applicant.
COMPLETE
SPECIFICATION.
Improvements in the Method of and Apparatus for the Production
of Matrixes for Stereotyping.
I, MARK SMITH, of the "Guardian" Printing Works, Blackfriars, Manchester, in
the County of Lancaster, Printers' 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:-
Matrixes for stereotyping are at present commonly produced by first beating the
paper upon the face of the type contained in the forme by means of brushes; and
second, by passing the paper covered forme under the roller of a mangle, the
pressure exerted by which consolidates the matrix. According to this method, the
total pressure is at once applied and there is considerable risk of battering or
otherwise damaging the face of the type, which it is the object of this invention to
avoid.
In proceeding according to these improvements, I apply the roller pressure
gradually, or step by step, during the passage of the paper covered forme in one
direction through the mangle.
For the purpose of this invention I construct the mangle with two or more, and
preferably with three rollers, each of which exerts a portion only of the total pressure
or consolidating effect. The rollers have their lower surfaces on a slightly inclined
imaginary plane so that the first roller compresses the paper to (for example) one-
third of the total amount, the second roller to two-thirds, and the last roller
Price hd1

page_text: completes the compression. This last roller may therefore occupy the position and
be in other respects the same as or equivalent to the roller of an ordinary stereotyping
mangle.
I will more particularly describe my said invention with reference to the accom-
panying drawings in which
Figure represents a side view, Figure 2 a plan, and Figure 3 an end view of a
stereotyper's mangle. in which my improvements are embodied.
Figure 4 is a partial transverse section shewing the action of the rollers.
In each of the figures similar parts are denoted by similar letters of reference.
For the purpose of illustration I have represented the mangle as having two rollers
only, but I prefer to employ three for ordinary newspaper work.
A is the framing of the mangle; B B are friction bowls upon which the table runs ;
E is the driving crank handle, which may be constructed in any convenient manner;
F is the first motion shaft; G is a pinion on the handle shaft; H is a wheel gearing
with G; I is a pinion fixed on the shaft or stud upon which the wheel H is mounted;
J is a wheel fixed upon the first roller shaft and gearing with the pinion I; K K are
wheels fixed upon the first roller shaft at each end of the roller; L L are similar
wheels similarly fixed upon the second roller shaft; M M are pinions mounted
on an intermediate shaft and gearing with the wheels K K and L L; N N are
racks fixed upon the table O; P is the first roller; Q the second roller; R (Figure 4)
the type from which a matrix is supposed to be in the act of being taken; and S is
the
paper.
The first roller P is preferably a plain roller with a metallic surface, but it may
conveniently be constructed to be fitted with a blanket if desired. The finishing
roller, or the finishing rollers, is or are preferably blanket rollers as shewn in
Figure 4.
The pitch line of the racks and of the wheels gearing therewith is arranged in
or about the plane of the paper or of the surface of the type on the table.
It will be understood that I do not limit myself to the construction and arrangement
of the gearing and driving devices herein before described and illustrated by the
drawings, and that I do not limit myself to two rollers although I prefer not to exceed
three in any case.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is,―
(1) The hereinbefore described method of producing matrixes for stereotypers
which consists in compressing the paper upon the face of the type by the action of
two or more rollers having their surfaces of contact with the paper arranged in an
imaginary inclined plane so that the paper is partly compressed by the first roller
and completely compressed by the following roller or rollers substantially as herein-
before described.
(2) In a stereotyper's mangle, two or more pressure rollers arranged with their
surfaces of contact with the paper in an imaginary inclined plane, substantially as
and for the purpose hereinbefore described and as illustrated by the accompanying
drawings.
Dated this 25th day of November A.D. 1890.
WILLIAM E. HEIS,
Agent for the Applicant.