Improvements in Conduits Used in Paper-making Apparatus for Conveying the Stuff or Pulp.
Year: 1899

page_text: Date of Application (in United Kingdom), 28th Sept., 1899
Complete Specification Left, 28th Sept., 1899-Accepted, 16th Dec., 1899
COMPLETE SPECIFICATION.
Improvements in Conduits Used in Paper-making Apparatus for
Conveying the Stuff or Pulp.
I, PETER STODDARD SINCLAIR, of 93, Bowers Street, in the City of Holyoke,
County of Hampden and State of Massachusetts, Master Mechanic, do hereby
declare the nature of this invention and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement:-
This invention, relating to improvements in paper-making apparatus, more
particularly pertains to improvements in the conduits and gate-provided branched
connections for conveying and directing the paper pulp or stock from the engine
to the drainers.
Heretofore, as commonly practiced, the conduits have been made of wood
and the branched connection equipments in which the gates are provided have
been of metal, both of which, and more especially the branched connection por-
tions, have become seriously deteriorated and corroded under the action of the
moist plastic paper stock conveyed through the conduit and directed through
the branches by the shifting of the gate, necessitating their replacement at
considerable expense and greater inconvenience.
The object of this invention is to make possible, and, in fact, entirely prac-
ticable and convenient, the employment of the conduits and the therein coupled
gate-provided branched members which are composed of earthenware, the inven-
tion more especially residing in the construction of the branch members of
such material and in conjunction therewith the employment of efficient means
for holding the conduits and coupled branches securely together and of means
for accommodating and forming the supports or bearing for the shaft or stem,
through means of which the position of the gate in the branch member is
changed.
The invention is illustrated in the accompanying drawings, in which,
Figure 1 is a general view showing the arrangement of the coupled and
branched members included in connection with the conduits between the engine
and the drainer.
Figure 2 is a plan view showing one of the gate-provided branched coupling
members and a conduit section coupled to one branch thereof.

page_text: Figure 3 is a horizontal section centrally through the same.
Figure 4 is a vertical cross section taken substantially on the line 4-4,
Figure 3, and showing more especially combined with the earthenware branched
coupling the means for efficiently confining in place the metallic bearings or
journal supports for the shaft of the swinging gate or valve.
While I am of course aware that earthenware pipes made in sections with
the end of one thereof sleeved into the enlargement in the end of the next have
been employed in many places as the conduit for liquids and semiliquid masses, it
has never been deemed feasible to employ these earthenware conduits and
branched and valve-provided couplings in the conduits for the "stuff" or paper
pulp stock in paper mills, for the reason of the impracticability, as heretofore
believed, of providing in the branched coupled-in member made of this earthen-
ware material the gate or shifting valve and suitable journal bearings for the
shaft on which it is mounted; but this I have found not only to be possible
and practicable, but also to constitute a decided improvement in the conduit
system for the paper stock, resulting in great saving, especially in the replace-
ment of the conduit parts and branches, as those heretofore required to be
renewed at comparatively frequent intervals, while the equipment provided in
accordance with this invention permanent, or at least will last many times
the length of the life of the kind heretofore used.
In the drawings,, A represents the conduit which leads from the engine X
to the branched coupling and gate-provided part B, which is made of earthen-
ware and C and D) represents conduits, also of the same composition, leading
from the branches c and d of the coupling member B in lines at right angles to
each other to the drainers Y.
The branched coupling member B comprises the limb a, in line with the
aforementioned limb or member d, while the limb c is extended at right angles
thereto, each of these members being hollow or tubular, and each of the ones
and has the hollow end hub or enlargement 22, with the seat 10, within and
against which the externally cylindrical tubular hub-like end of the therewith
connected conduit is fitted with its flange 12, slightly distant from its end, face-
wise abutted against the other end of the hub-like part 2 or 2.
The branch or limb , having the external flange 13 back of its hollow hub-
like end 14, is sleeved into the seat enlargement therefor of the conduit
section D.
1
ff represent detachably connected rings or yokes of metal, one of which
lies within and against "and extends diametrically beyond the flange or
shoulder 13 of the limb d of the branched coupling member, while the other
ring is arranged opposite thereto, it having its bearing against the portion of
the hollow hub enlargement . adjoining the neck or where this portion termi-
nates and merges into the smaller body of the conduit section D.
The rings or collars f are formed in half sections with interlocking tongues
and comparatively deep grooves or receiving sockets for the tongues, and the
bolts are passed through the matched or tongue and grooved interlocked
portions of the rings, the head of the bolt hearing against the outer face of the
one ring, while the nut is set up against the farther side of the other ring.
These bolts are passed through the interlocked portions of the rings, as men-
tioned, not only to serve to clamp the parts of the conduit sections together,
but hold the ring sections together.
Bolts may also be provided for clamping the rings between the ring joints.
Grepresents the gate or valve, pivotally mounted at the junction of the
walls of the branch members c and d of the part B, the same being adapted to
be swung directly across the passage of the branch c, leaving the straight pas-
sage through the branch continued in the branch or to be swung across
the straight passage, so that the stock in passing through the coupling member
takes the angular course through the member c.
This gate is made of brass or other suitable metal semicircular at one end

page_text: and squared at the other or butt end, as seen in Figure 3, the edge of the
squared end being constructed in the form of a thickened circular rib 15, having
the square or otherwise polygonally-shaped hole through it for the engagement
therewith of the squared intermediate part 16 of the metallic spindle or valve-
operating shaft J.
The spindle J below the squared portion 16 has the shoulder enlargement or
flange 17, below which it has the circular portion 18 of suitable length to con-
stitute one journal, while its opposite round end portion 19 constitutes the
other journal and also the extension on which the valve-operating handle 20 is
attached or engaged.
Socket hubs h h are integrally formed with the branched coupling member B
as hub-like projections at the top and bottom thereof, the common axial line
of both being about coincident with the junction of the walls of the limbs c
and d, at which is located the butt end of the valve, said hubs having within
them the step-like or rabbeted seats for the metallic cylindrical journal bear-
ings, which may be advantageously formed of iron.
Each of the socket hubs has at its end the external enlargement 22.
Each journal bearing is formed of two diameters, or step-like, the inner
end portions being the smaller and adapted to be seated and suitably packed in
the socketed hubs h h of the earthenware fitting B, and each of these metallic
journal bearings is furthermore provided at its outer end with the considerably
widened flange 2.
These end flanged metallic centrally drilled journal bearing members ii are
held firmly within their seats in the integral socket hubs of the earthenware
coupling member by the detachable clamping rings kk, which lie next within
and against the shoulder enlargements 22 of the socket hubs, and the clamping
bolts which pass through both the rings and the flanges the same being
headed at one end and receiving nuts at the other.
The rings are constructed and applied in substantially the same manner as
the herein before described clamping rings f f.
In the assemblage of the parts pertaining to the journaling of the gate the
gate is introduced in place with its apertured ribbed base end in the axial line
of the socket hubs, the shaft G is passed through it from the under side of the
branched coupling B until the shoulder has been brought up against the lower
edge of the valve, the centrally drilled round journal blocks ii are brought to
place over and about the round portion at the opposite extremities of the shaft
and seated in the sockets therefor in the parts h h and confined by the clamping
rings and bolts, the screw plug m is screwed centrally into the under journal
to endwise contact against the lower end of the shaft, and the lever or handle 20
is engaged at the upper end of the shaft therewith.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1-In combination with the pulp-carrying conduit of paper-making appa-
ratus, a branched coupling member comprising two tubular limbs in line and
a third limb intermediately and angularly arranged and all formed of earthen-
ware having at its sides opposite the junction of the angular limb with the
other limbs, socket hubs integrally formed of said ware, metallic journals seated
in said socket hubs, a shaft rotatably mounted in said journals and carrying a
gate valve adapted to be swung to leave a straightway passage from the inlet
branch of the device through the branch which is in line therewith, or to be
closed across the latter branch leaving the clear passage-way from the inlet
branch through the angular member, substantially as described.
2-In combination with the pulp-carrying conduit of paper-making appa-
ratus, a branched coupling member comprising two tubular limbs in line and
a third limb intermediately and angularly arranged and all formed of earthen-

page_text: ware having at its opposite sides opposite the junction of the said limbs, socket
hubs integrally formed of said earthenware and provided with the external end
shoulders 22, metallic journals seated in said socket hubs, having outer end
flanges, split and detachably confined rings engaged under and against said
shoulders 22, and the bolts passing through said rings and the journal flanges,
a shaft rotatably mounted in said journals and carrying a gate valve adapted
to be swung to leave open the straightway passage from the inlet branch, or
the angular branched passage, substantially as described.
3-In combination with the pulp-carrying conduits of paper-making appa-
ratus, a branched coupling member comprising two tubular limbs in line and
a third limb intermediately and angularly arranged and all formed of earthen-
ware having at its sides opposite the junction of the angular limb with the
other limbs socket hubs integrally formed of said ware, metallic centrally drilled
journals seated and confined in said socket hubs, a shaft rotatably mounted in
said journals and carrying a gate valve adapted to be swung substantially as
and for the purpose described, and having a handle at its one end and a screw
plug m screwing centrally into the one journal against the end of the shaft.
4-In combination with the pulp-carrying conduits of paper-making appa
ratus, a branched coupling member C comprising two tubular limbs ad in
line, and a third limb intermediately and angularly arranged and all
formed of earthenware having at its opposite sides opposite the junction of the
said limbs socket hubs h h integrally formed of said earthenware and provided
with the external end shoulders 22, cylindrical and externally step-shaped
metallic journals i i, seated in said socket hubs, having outer end flanges, split
and detachably confined rings k k engaged under and against said shoulders 22,
and the headed bolts passing through said rings and the journal flanges, a shaft
rotatably mounted in said journals formed with the squared central part 16
with the shoulder 17 and the round end portions 18 and 19. the gate valve G
having at its base end the squared perforation through which the squared part
of the shaft engages, and the screw plug m, centrally entered into one of the
journals against the end 18 of the valve shaft, substantially as described.
Dated this 9th day of September 1899.