A NEW AND USEFUL OR IMPROVED MACHINE FOR THE MAKING AND SIZING OF PULP USED IN THE MANUFACTURE OF PAPER
Year: 1860

page_text: LETTERS PATENT to Henry Martyn Clarke, of the State of Massachusetts,
of the United States of America, for the Invention of "A NEW AND
USEFUL OR IMPROVED MACHINE FOR THE MAKING AND SIZING OF PULP USED
IN THE MANUFACTURE OF PAPER."-A communication from Thomas Eustice
and Joseph Jordan, junior, both residing at Hartford, in the State of
Connecticut of the said United States.
Sealed the 22nd May 1860, and dated the 27th March 1860.
COMPLETE SPECIFICATION filed by the said Henry Martyn Clarke at the
Office of the Commissioners of Patents, with his Petition and Decla-
ration, on the 27th March 1860, pursuant to the 9th Section of the
Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, BE IT
KNOWN, that I, HENRY MARTYN CLARKE, of the State of Massachusetts, of
the United States of America, do hereby declare that I am in possession of
"A NEW AND USEFUL OR IMPROVED MACHINE FOR THE MAKING AND SIZING OF
PULP USED IN THE MANUFACTURE OF PAPER," such Invention being a communi-
cation to me from Thomas Eustice and Joseph Jordan, junior, both residing
at Hartford, in the State of Connecticut, of the said United States, and that the
nature of the said Invention and the manner in which it is to be performed, or
in other words its construction and mode of operation are fully described and
represented in the following Specification and the accompanying Drawings, of

page_text: which Figure 1 is a longitudinal sectional view, and Figure 2 a transverse
section of such machine.
The nature of my Invention consists in an improved pulp making and
sizing engine or machine as constructed, not only of a single conical grinder
and outer grinding shell or case thereto, but with pipes for the introduction of
the rags and the size, and the eduction of both arranged with reference to the
axis and ends of the grinder substantially in manner, and so as to enable
the grinder to act in reducing the rags to pulp and mixing the sizing therewith,
as herein-after explained.
In carrying out my Invention I employ an outer conical grinding case A
(see Figure 1 and 2), and an inner conical frustrum or grinder B, the latter
being arranged within the former, and both being disposed with their common
axis horizontal or thereabouts.
In Figure 1 the conical grinder B is not exhibited in section; its shaft B¹ is
supported in suitable bearings or boxes C, C, and runs in stuffing boxes M, M,
applied to the two heads of the case. The said shaft is provided with adjusting
screws D, D, D, &c., so applied to it as to enable it to be moved either
longitudinally or transversely as occasion may require, in order to effect the
proper adjustment of the grinder B within its case, either for fine or coarse
grinding or otherwise. The external surface of the grinder B, as well as the
internal surface of its case, is provided with ranges of teeth or cutters, by
which while the grinder may be revolving within the case, they may cause any
rags when in the latter to be properly reduced. A driving pulley F is fixed to
the shaft of the grinder B. The case A is furnished with two induction pipes
G, I, and one eduction pipe H, they being arranged with reference to the
ends of the grinder, as shown in the Drawings. The rags are fed into the
case through the conduit G, the sizing being allowed to flow into the pipe I,
and from thence into the said case. After the rags may have been properly
reduced and mixed with the sizing, the pulpy mass will be discharged through
the eduction pipe H. The peculiar arrangement of the pulp and size induction
pipes G, I, and the common eduction pipe H, with reference to the conical
grinding surfaces, having their common axis arranged horizontally, and the
rotary grinder being made adjustable with respect to its case in manner
as explained, render the machine of great value and highly effective in
operation. By the said arrangement of parts the sizing is not introduced into
the pulp until the latter is nearly, if not entirely, reduced to the fineness that
may be required. By being introduced into the upper part of the case the
sizing will be thoroughly mixed with the pulp, before it may be discharged by.
the vive H.

page_text: The reduction of the rags first takes place near the smaller end of the
rotary grinder, the ground rags being finally discharged under the said grinder
and near to its larger end, the construction and arrangement of the grinder
being such as to enable gravitation to operate in effecting the passage of the
pulp from the induction pipe at one end of the case to the eduction pipe at the
opposite end thereof.
I claim my improved pulp-making and sizing machine as constructed sub-
stantially in manner and so as to operate as described.
In witness whereof, I, the said Henry Martyn Clarke, have hereunto set
my hand and seal, this Eighth day of March, One thousand eight
hundred and sixty.
HENRY MARTYN CLARKE. (L.S.)
HENRY MARTYN CLARKE. (L.S.)