Improvements in or relating to Refining Engines for Paper Making.
Year: 1890

page_text: Late of Application, 26th Nov., 1890
Complete Specification Left, 20th Aug., 1891-Accepted 3rd Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in or relating to Refining Engines for Paper Making.
I, JOHN HUTCHINSON SHORROCK of 9 Bank Street, Darwen in the County of
Lancaster, Engineer, do hereby declare the nature of my said invention to be as
follows:-
This invention refers to improvements in or relating to refining engines employed
in the art of paper making and has for its object that of improving the construction
of beater disc, and the back and front plates employed therein, so as to considerably
increase the wearing surfaces of the bars or blades, and prolong the life of same.
To effect this I cast in the back and front plates steel or other metallic bars or
blades; the spaces between them being filled with wood to steady or support the
extra length of the bars or blades, which can be cut away as required according to
the wear of the bars or blades. The beater disc is provided with slots or openings
to receive steel or other metallic bars or blades; the latter being slotted or recessed
to fit on the rim of the disc, and locked in position by wedges secured by wood
blockings inserted in the spaces between the bars or blades. The wood blockings
can be cut away as required according to the wear of the metallic bars or blades.
The steel or other metallic bars or blades both for the disc and the back and front
plates are made parallel or otherwise, and of suitable thickness to avoid or dispense
with chipping or cutting as wear takes place to maintain an uniform wearing surface
as in refining engines at present in use. The disc is secured to a spindle or centre
supported in bearings in the usual manner. The disc and the front and back plates
are enclosed in a suitable casing in the usual manner, being provided with means
of adjustment according to wear, and the usual inlet and outlet branches.
Dated the 25th November 1890.
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Refining Engines for Paper Making.
I, JOHN HUTCHINSON SHORROCK of 9 Bank Street, Darwen in the County of
Lancaster, Engineer, do hereby declare the nature of my said 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 refers to improvements in or relating to refining engines employed
in the art of paper making and has for its object that of improving the construction
of beater disc, and the back and front plates employed therein, so as to considerably
increase the wearing surfaces of the bars or blades, and prolong the life of same.
To effect this I cast in the back and front plates steel or other metallic bars or
blades; the spaces between them being filled with wood to steady or support the
extra length of the bars or blades, which can be cut away as required according
to the wear of the bars or blades. The beater disc is provided with slots or
openings to receive steel or other metallic bars or blades; the latter being slotted
or recessed to fit on the rim of the disc, and locked in position by wedges secured
by wood blockings inserted in the spaces between the bars or blades. The wood
blockings can be cut away as required according to the wear of the metallic bars
or blades. The steel or other metallic bars or blades both for the disc and the
back and front plates are made parallel or otherwise, and of suitable thickness to
avoid or dispense with chipping or cutting as wear takes place to maintain an
D
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page_text: uniform wearing surface as in refining engines at present in use. The disc is
secured to a spindle or centre supported in bearings in the usual manner. The
disc and the front and back. plates are enclosed in a suitable casing in the usual
manner, being provided with means of adjustment according to wear, and the usual
inlet and outlet branches.
Fig. 1 is a longitudinal elevation of my improved refining engine employed in
the art of paper making.
Fig. 2 is a part sectional plan of same.
Fig. 3 is a transverse sectional view through line A' B¹ in Fig. 1.
Fig. 4 is a side elevation of my improved beater.
Fig. 5 is a sectional elevation through line C D¹ in Fig. 4.
Fig. 6 is a front view of my improved front plate.
Fig. 7 is a plan of same.
Fig. 8 is a front view of my improved back plate, and
Fig. 9 is a plan of same.
In all the figures the same letters are employed to indicate corresponding
parts.
A is the beater disc; B the spindle or centre supported in the bearings C on the
foundation plate D; E is the front plate; G the back plate; F the screwed slide
carrying the front plåte E and the inlet branch H; K is the under casing; I the
upper or removable casing, and J the pulley on the spindle or centre B to drive
the machine from any convenient part.
In the front plate E and the back plate G are cast the steel or other metallic
bars or blades L; the spaces between them being filled with the wood blocks M
to a point near the face or wearing surface of the bars or blades L to steady or
support the extra length of latter projecting from the face of the front and back
plates. The wood blocks M can be cut away by means of a chisel or other
equivalents according to the wear of the bars or blades L. The front plate E is
secured to the flange F1 of the screwed slide F by means of the screws N, and as
the bars or blades L wear the front plate E can be adjusted by operating the
worm wheel O by means of a worm on the shaft P; the latter being mounted in
the bearings Q, and rotated by the hand wheels R. The back plate G is secured
to the upper removable casing I and the lower fixed under casing K by means of
the screws S.
The beater disc A is provided with slots or openings in which are inserted the
steel or other metallic bars or blades T. The latter are slotted or recessed at U
to fit on the rim of the disc A, and are locked in position by the wedges V. The
spaces between the bars or blades T are filled with the wood blocks W to a point
near the face or wearing surface of the bars or blades, and are secured in position
by the bolts X, screws, or other equivalents. The wood blocks W also secure in
position the wedges V employed for locking the bars or blades T in position. The
wood blocks W can be cut away by means of a chisel or other equivalents according
to the wear of the bars or blades T of the beater A. The disc A is secured to the
spindle or centre B in any convenient manner, being supported in the stuffing-
box Y and bearings C.
An important feature of this invention is that the casing surrounding the beater
and the front and back plates is made in halves, the bottom part K being fixed to
the foundation plate D by the bolts S¹; and the upper part I is removable after
the screws S have been released from the back plate G. The upper part I and the
lower part K are provided with the flanges M', and are secured together by the
bolts T. Owing to the upper part I being removable the wood blockings M
and W can be cut away according to the wear of the bars or blades L and T
without removing the beater or the front and back plates from the said casing, a
desideratum not to be found in other makes of refining engines.
The substance to be operated upon in this machine is fed down the inlet pipe H
and through the openings H' in the front plate E, from whence it passes in the
directions indicated by the arrows in Fig. 2 to the outlet S2 on the lower side of

page_text: the casing K. The back plate G is provided with the passage L² to conduct the
substance from the opening H³ to the outlet S2 as shown in Fig. 8. As the bars
or blades of the beater and the front and back plates wear the whole are adjusted
by means of the screwed slide F operated by the worm wheel O as before
described.
This improved method of constructing the bars or blades of the beater and the
front and back plates entirely dispenses with the necessity of chipping or cutting
the same as wear takes place to maintain an uniform surface as is the case in
refining engines constructed hitherto.
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 I
claim is :-
1. In combination with refining engines for paper making the use and construction
of the beater disc A provided with slots or openings in which are inserted steel
or other metallic bars or blades T slotted or recessed to fit rim of disc and locked
in position by wedges V, the latter being secured by the wood blockings W, sub-
stantially as described.
2. In a beater of a refining engine, the use of the bars or blades T and the wood
blocks W in combination, constructed substantially as hereinbefore described to
support the bars or blades T.
3. In front and back plates of a refining engine, the use of the bars or blades L
cast therein and the wood blockings M in combination, for the purpose specified.
4. The general arrangement, construction, an combination of parts composing
my improved refining engine for paper making, as hereinbefore described and as
illustrated in the annexed drawings.
Dated the 13th August 1891
EDMUND CHADWICK,
Agent.