Improvements in and connected with Suction Boxes for Paper-making Machines.
Year: 1897

page_text: Date of Application, 4th May, 1897-Accepted, 26th Junė, 1897
COMPLETE SPECIFICATION.
Improvements in and connected with Suction Boxes for Paper-making
Machines.
I, MARBLE DWIGHT KEENEY, Manufacturer, residing at Antioch, California,
United States of America, 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 :—
My invention relates to revoluble suction boxes for paper making machines and
will be understood from the following description and claims.
In the annexed drawings:
Figure 1, is a view illustrating the arrangement of my suction box in a
Fourdrinier paper making machine.
Fig. 2, is a sectional view of the suction box.
Figure 3, is a section on line x, x, Figure 2.
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Figure 4, is a detail plan view of a portion of the stationary cylinder.
Figure 5, is a sectional view of a modification, and :
Fig. 6, is a transverse section showing the same as a combined suction box and
coucher.
Referring by numeral and letter to Figures 1-4, of drawings:
1, indicates the couch rolls usually embodied in Fourdrinier paper making
machines; 2, indicates the roll usually arranged in rear of the couch rolls;:
3, indicates my suction box, and 4, indicates the ordinary wire which passes over
the suction box 3, and the roll 2, and between the couch rolls to carry the web of
paper.
A, indicates the stationary cylinder of my suction box. This cylinder A, has its
ends closed by caps B, which are connected in an air tight manner and have
tubular extensions a, designed to be mounted in the frame of the paper making
machine.
The extensions a, of caps B, have stuffing boxes b, and are designed for the
passage of the handle rods C, of the carriages D. These carriages D, respectively
comprise a horizontal body c, which moves in a longitudinal guide way d, in the
cylinder A, and the upright arms e, f, which have apertures g, to receive the
handle rod C; said rod being secured to the carriage by a pin h.
E, indicates blocks which have faces F¹, of rubber or other packing material.
The blocks E, are arranged to move in a groove i, in the cylinder A, and they have
depending portions j, arranged between the arms e, f, of the carriages D, whereby
it will be seen that they will move with the carriages when the same are adjusted.
These depending portions j, have their lower edges beveled to engage the oppositely
threaded nuts F, G, which are mounted on the oppositely threaded portions k, l, of
the rods C, and have their upper sides beveled in conformity to the lower edges
of the portions j, so that when the rods C, are turned in one direction the
nuts F, G, will be moved toward the middle of the portious j, and the rubber
faces F, will be pressed against the cylinder A, while, when the rods C, are
turned in the opposite direction the nuts F, G, will be moved toward the arms e, f,
of the carriages D, and the said carriages may then be moved through the medium
of the said rods C.
At its ends the cylinder A, is provided with the imperforate' portions m, of about
the proportional length illustrated, and at its middle it has the row of comparatively

page_text: large apertures n, with portions of metal p, between them; such apertures being
provided instead of a continuous slot for the sake of strength and durability.
Between the ends of the row of apertures n, and the imperforate portions m, said
cylinder A, has two (more or less) rows of apertures r, which are preferably flared
or reamed out at their outer ends to facilitate the entry of water and air into
the same.
The suction box may be adapted for drawing water from sheets of various
widths; it being simply necessary when the width of the sheet corresponds to the
combined length of the rows of apertures n, r, to draw the carriages D, to
B position within the imperforate portions m, of the cylinder, and, when the width
of a sheet is less than the combined length of the rows of apertures n, r, to move
the carriages D, toward each other until the inner ends of the rubber faces F',
rest in alignment with the edges of the sheet, and then turn the rods C, to force
and hold the said rubber faces F, tightly against the inner side of the cylinder A,
and thus close all the apertures r, except those covered by the sheet. Thus the
force of the suction device (not illustrated) will be expended in drawing water
from the sheet. The suction device is connected with the cylinder A, by the.
conduit H.
When desirable, the rows of small apertures r, may extend from one imperforate
portion m, of the cylinder A, to the other, and in consequence the comparatively
large apertures n, may be dispensed with.
I, indicates the revoluble cylinder over which the wire and the sheet or web of
paper passes. This revoluble cylinder 1, is preferably of brass and provided
with apertures s, which preferably have their outer ends flared or reamed out as
shown to facilitate the entry of water and air into the suction box and also to
preserve the strength of the cylinder. The cylinder I, is also provided at its
ends with the imperforate portions which bear upon the imperforate portions of
cylinder A. These imperforate portions of the two cylinders are designed to
receive lubricant between them, so that when the suction box is first used the
perforated portions of the cylinders will wear a little and then the cylinder I, will
be supported upon the imperforate portions of the cylinder A, and in consequence
wear of the perforated portions will cease.
J, indicates the belt which takes around the cylinder I, at one end thereof and
is designed to take around the drive pulley of a motor or around a pulley on some
shaft of the paper machine. This belt J, serves to drive cylinder I, and take all
strain off the wire and web or sheet of paper which pass over the same.
The width of the induction passage in cylinder A, may be increased by
increasing the rows of apertures n, r, and it will be obvious that when the width of
the induction passage is increased the width of faces F¹, must also be increased and
a roller illustrated by dotted lines in Figure 1, must be employed to bring the
wire and the web or sheet of paper partly around the suction box as shown by
dotted lines so that the web of paper will at all times. entirely cover such
induction passage.
The suction box is also adapted to be used as a coucher in cylinder machines, in
which case the width of the induction passage may be increased to one half or
even more of the circumference of the box; the felt being carried around the box
to always cover the induction passage by suitably arranged rolls.
Referring by letter to Figures 5 and 6:
A, indicates bearings; B₁, indicates the stationary cylinder which is formed by
circular valves B", provided with openings a, threaded flanges 6, and pipe
sections C, which are threaded to engage flanges b, and connect the valves B¹¹;
D, indicates a pipe which is connected to one end valve B", and is designed to be
connected to a suitable suction pump (not illustrated). D', indicates a pipe which
is connected to the other end valve and may also be connected with the same
suction pump as the pipe D, or with another pump, and which when it is desired to
draw water from one end of the suction box only may be replaced by a plug or
the like; and E, indicates the revoluble portion or cylinder of the suction box.

page_text: The cylinder E, comprises the outer perforated shell c, which is foraminated, the
trunnions d, which have flanges e, connected to the shell c, the tubular portions f
which are arranged upon the contiguous ends of the stationary valves B", the
radially disposed and longitudinally extending partitions g.
which are fixedly
connected with and interposed between the trunnions d, and tubular portions f, and
the outer shell c, and the inclined walls h, arranged between the partitions g, and
connected to the trunnions d, the tubular portions f, and the outer shell c,
and pitched toward the openings in the valves B, so as to lead the water which
enters the shell c, into the openings of said valves.
In the practice of this embodiment of my invention, the suction box is arranged
above the pulp tank of the paper making machine in advance of the forming
cylinder and the felt usually employed is passed over the suction box so as to
revolve the cylinder E, of the suction box at a speed equal to that of the travel of
the felt. The openings a, in the valves B", are preferably disposed as shown in
Figure 6, so that when cylinder E, revolves the felt and the pulp thereon will be
subjected to suction as soon as they reach a point opposite the openings in the
valves and the suction will cease before the felt reaches the point at which it
leaves the suction box. By virtue of this the suction employed may be
exceedingly strong so as to quickly suck all the water from the felt and pulp.
and permit of the felt being moved at a high rate of speed which is highly
desirable as it materially expedites the process of paper making.
The radial partitions g, of my improved suction box serve when the box is in
operation to prevent the water which is drawn from the felt and pulp from
falling and they also serve to expedite the passage of the water into the..
openings a, of the valves B, as do also the inclined walls h.
It will be readily observed from the foregoing that the construction of my
suction box admits of it being employed as a combined coucher and suction box,
as shown in Figure 6; it being simply necessary when it is desired to make the
device serve the two-fold function to cover the shell c, with perforated rubber or a
suitable porous fabric M.
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:
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1. In a suction box, the combination of a stationary cylinder adapted to be
connected with a suction device and having an induction opening extending but
partly around its circumference, and also having imperforate portions at its ends
and a rotary cylinder arranged and adapted to be revolved upon the stationary.
cylinder and having imperforate portions at its ends bearing upon the imperforate
portions of the stationary cylinder, substantially as specified.
2. In a suction box, the combination of a stationary cylinder adapted to be
connected with a suction device and having an induction opening and an eduction
opening, a foraminated, revoluble cylinder arranged upon the stationary cylinder, a
carriage arranged within the stationary cylinder, a rotatable handle connected to.
the carriage and having right and left hand threads, nuts mounted on said right
and left hand threads and having one of their sides beveled, a block having a side
beveled in conformity to and bearing upon the beveled sides of the nuts, and
packing carried by said block and adapted to bear against the inner side of the.
cylinder and partly close the induction opening thereof, substantially as.
specified.
3. In a suction box, the combination of a stationary cylinder adapted to be
connected with a suction device and having H longitudinal induction opening or
series of openings and an eduction opening and also having imperforate portions at
their ends, a foraminated revoluble cylinder arranged upon the stationary cylinder
and having imperforate portions at their ends bearing on the imperforate portions
of the stationary cylinder, carriages arranged in a guide way in the stationary-
cylinder, rotatable handle rods connected to the carriages and having right and

page_text: left hand threads; said rods being extended through the ends of the cylinder, nuts
mounted on the right and left hand threads of the rod and having one of their
sides beveled, blocks carried by the carriages and having one of their sides beveled
in conformity to and bearing upon the beveled sides of the nuts, and packing
carried by said blocks and adapted to bear against the inner side of the
stationary cylinder and partly close the induction opening, thereof, substantially as
specified.
4. In a suction box, the combination of a stationary cylinder adapted to be
connected with a suction device and having an induction opening or series of
openings and an eduction opening, à revoluble foraminated cylinder arranged upon
the stationary cylinder, a carriage arranged in the stationary cylinder, packing
adjustably mounted on the carriage, means for adjusting the carriage and means
for adjusting the packing with respect to the stationary cylinder, substantially as
specified.
5. In a suction box for paper making machines, the combination of a stationary
cylinder having a series of openings a, at intervals in its length and adapted to be
connected with a suction device, and the revoluble cylinder surrounding and
adapted to revolve around the stationary cylinder and comprising a foraminated
shell, the longitudinally extending partitions between the valve and the foraminated
shell, and the walls h, arranged between the longitudinal partitions and pitched
towards the openings in the stationary cylinder, substantially as specified.
6. In a suction box for paper making machines, the combination of the stationary
valves B', provided with the openings a, and having the inwardly extending,
interiorly threaded flanges b, threaded pipe sections connecting the valves B¹, a
pipe section connected to one end valve and adapted to be connected with a suction
device, and the revoluble cylinder comprising the outer perforated shell c, the
trunnions d, having flanges e, fixedly connected to the shell c, the tubular
portions, arranged and adapted to turn upon the contiguous ends of the valves B',
the radially disposed and longitudinally extending partitions g, connected with and
interposed between the trunnions d, and tubular portions f, and the outer shell c,
and the walls h, arranged between the partitions g, and pitched toward the openings
in the valves Bi, substantially as specified.
Dated this 4th day of May 1897.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.