Improvements in Devices for Breaking Up and Separating Foreign Substances from Paper Stock, and Feeding it to Washing and other Machines.
Year: 1896

page_text: Date of Application, 2nd June, 1896-Accepted, 18th July, 1896
COMPLETE SPECIFICATION.
Improvements in Devices for Breaking Up and Separating Foreign
Substances from Paper Stock, and Feeding it to Washing and
other Machines.
We THOMAS CADWALADER CADWGAN of 105 S. School Street, Anderson,
Madison County, Indiana, United States of America. Inventor, and THE
O. S. KELLY Co., (Corporation organized under laws of State Ohio) of Spring-
field, Clark County, Ohio, Manufacturers 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 and accompanying
drawings:-
Our invention relates to improvements in devices for handling and feeding paper
stock, and it is especially adapted for use with machines such as illustrated in
British Letters Patent No. 9989 of 1895 though it may be used with any similar
devices or devices employed for the same purpose.
The object of our invention is to provide a feeding device which shall break up
the masses of stock and feed the same in a regular and uniform manner and at
the same time permit the separation therefrom of foreign substances of a character
that would injure the washing or disintegrating machinery if fed thereto.
We attain this object by the constructions shown in the accompanying drawings,
in which
Fig. 1 is a longitudinal sectional elevation of our feeding device with the
elevating attachment connected thereto.
Fig. 2 is a transverse sectional view of the feeding devices, which section also
passes longitudinally through the elevating carrier.
Fig. 3 is a transverse sectional view of a portion of the elevating carrier. Fig. 4
is a detail of the same on a larger scale.
Like parts are represented by similar letters of reference in the several views.
In the said drawings, a represents a longitudinal box or casing, which is
preferably rectangular in cross-section. It is provided at the front or receiving
end with a pocket al in the bottom thereof, said pocket having an inclined chute
or floor a 2, which leads therefrom in the direction in which the stock is moved,
as hereinafter more fully set forth. The opposite or discharge end of this casing a
is formed with a downwardly-projecting conduit or flume a 3, which is adapted
to fit on and connect with the machine into which the stock is to be fed so that
said flume or conduit will connect with the feeding opening of said machine. The
main portion of the bottom of the casing a, or that portion which lies between
the pocket a 1 and the conduit a 3, is formed open, but provided at intervals with
slats or cross bars a 4, which extend from side to side of the casing and are
preferably inclined in the direction in which the stock moves.
At the respective ends of the casing and within the same there is journaled a
transverse shaft, b and b 1, each of which carries a pair of sprocket wheels b 2 63,
on which are supported endless chains 64 b5. These chains are connected together
at intervals by cross bars or slats 66, supported by and connected at each end to
the respective chains b4b5; the slats or cross bars being preferably arranged at
a distance apart corresponding to the distance between the slats or bars at in
the bottom of the casing a.
Below the slatted bottom of the casing a is a chamber c, preferably formel with

page_text: an inclined bottom el, having at its lower end a conduit or pocket e 2, with a
removable cover c3. Arranged within this chamber c is a pipe c 4 having a series
of slotted openings e 5 in the upper part thereof, and connected by a suitable pipe
connection c6 to a water supply. At the receiving end of the casing a, and
preferably above the shaft b, is a water supply pipe e 7, which enters the casing
at a point above its discharge end and is turned down as shown so as to discharge
the water admitted through the same downwardly around the end of the carrier
formed by the endless chains and their connecting cross bars or slats.
Extending downwardly at an angle from the receiving end of the casing a of
this feeding carrier is an elevating carrier, which is adapted to discharge into the
feeding carrier. This elevating carrier consists of endless chains d 1 d 2, passing
over suitable sprocket wheels d3 d 4, which are secured to transverse shafts d5d6,
in a box or casing d. This box or casing d has an inclined bottom d 7, the lower
end d8 being also preferably inclined so as to form a pocket or chamber d9,
substantially under the lower shaft d5, and from this pocket there leads a discharge
opening or pocket d 10, having a removable cover d 11. The endless carrying
chains d1 d2 are connected together by suitable slats or bars d 12, which are
armed with projections or spikes d13, any suitable number of which may be
. employed across the carrier. Below the carrier thus formed there is a false
bottom d 14, provided at intervals with slotted openings d 15; there being also
preferably provided at the lower end of the casing an inclined chute d 16,
having slotted openings d 17. The sprocket wheels d 3 on the shaft d5 are
preferably formed with extended rims, and to these rims are secured
cylinder d 18 of wire netting or gauze, as shown in detail in Figs. 3 and 4.
The ends of the sprocket wheels d3 are adapted to rest close to the sides of
the casing d, and in proximity to discharge openings d 19 in the sides of
said casing, from which lead conduits d 20, to permit the discharge of the waste
water, as hereinafter more fully specified. These openings d 19, it will be
understood, communicate with the inside of the cylinder d 18, through the
sprocket wheels, which are formed with arms and openings for this purpose.
a
The stock to be fed is discharged with a quantity of water into the casing d
at the lower end so as to fall between the carrier and the inclined chute d 16.
The carrier is caused to revolve in the direction of the arrow so that the lower
portion of the carrier moves upwardly along the false bottom d 14. The water,
which is fed with the stock, fills the chamber d 9 and causes the stock to float in
contact with the cylinder and with the teeth or projections in the elevating
carrier; the surplus water passing through the gauze cylinder out through the
discharge openings d 20. The stock which is thus fed into this casing will be
broken up by the spikes and drawn downwardly and around the cylinder, thence
upwardly along the false bottom, and in the course of its travel will discharge
through the slotted openings a large proportion of the foreign substances, such as
sand, lime, or similar material which it contains, which substances fall into the
chamber d 9 and can be removed at any time through the opening d 10 by means
of the removable cover d 11. The stock is carried by the elevating carrier and
discharged into the receiving end of the casing a, where it comes in contact with
the water which is admitted through the water supply e 7, and is carried by the
water thus admitted and the feeding carrier downwardly into the pocket al, and
by the action of the water and carrier is more thoroughly broken up, then carried
by the cross bars or slats 66 along the bottom of the casing and over the cross
bars or slats a 4. Water is also admitted through the pipe e6 and escapes
through the slotted openings c5 into the chamber c, and keeps this chainber e, as
well as the pocket a 1, filled with water, the surplus water being adapted to overflow
into the conduit a 3. As the stock is moved along the bottom of the casing it is
rubbed between the respective slats b6 and a 4, and all foreign substances or
matter of a greater specific gravity than water will drop into the chamber e
between the slats a 4. The stock being of a lighter specific gravity will be
carried by the feeding carrier and floated with the water into the conduit a 3 in a

page_text: uniform and regular manner and
which is adapted to receive it.
deposited into the washing or other machine
It should be stated that the cross bars a 4 are supported on longitudinal bars a 5
on each side of the casing at the bottom; the carrier bars 6 being adapted to
extend across and be supported at each end on these longitudinal bars, which are
preferably shod with metal to form ways or guides for the traveling bars of the
carrier.
We also preferably employ at the top of the elevating carrier cross bars d 21,
having inwardly-projecting spikes d 22, which assist in discharging the material
from the fingers d 13 as the endless chains of the carrier revolve."
In order to support the upper half of the elevating carrier, we preferably employ
under this part of the carrier belt or chains, a slatted false bottom d 23, which is
located between the respective sprocket wheels and extends from side to side of
the carrier casing. This arrangement supports the carrier belt and prevents the
same from sagging between the supporting wheels, and also permits the carrier to
run in the opposite direction if so desired so that the stock may be carried over
instead of under the carrier belt.
It should be stated also that water is supplied to the carrier casing through the
medium of a supply pipe d 24, which is branched into perforated shower pipes d 25
and d 26, arranged preferably above the cylinder d 3.
A machine as above constructed is adapted to handle paper stock in large
quantities, to break up the masses of the same, and deliver it into the washing or
other machine to which it is to be fed in a regular and uniform inanner, and freed
from foreign substances which would be detrimental to the machine for which these
devices are feeders.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that
what we claim is :
1. The combination with a longitudinal casing having an open or slatted bottom
as described, a traveling carrier having transverse slats adapted to pass over said
slatted bottom, a chamber under said casing, and a water supply in said chamber,
substantially as specified.
2. The combination with the longitudinal casing having a pocket with an inclined
bottom at the receiving end, and a conduit or discharge opening at the discharge
end, an open bottom having transverse bars between said pocket and conduit, a
chamber under said bars, and a water supply in said chamber, a feeding carrier
consisting of endless belts or chains having transverse bars to move longitudinally
along the top of said water chamber, substantially as specified.
3. The combination with the elevating carrier and the longitudinal feeding
carrier, of a water supply introduced into said feeding carrier at the open end of
and above said carrier, and a casing having a water chamber under said feeding
carrier which is adapted to discharge the water into said feeding carrier, and
rubbing bars on said carrier and casing, respectively, substantially as specified.
4. The combination with the feeding carrier, as described, of an elevating carrier
having feeding projections, and a false bottom having slotted openings, a pocket
under said bottom, and a perforated cylinder having discharge openings leading
from the inside thereof over which the endless belts or chains of said elevating
carrier pass, substantially as specified.
5. In a feeding device for paper machines, an outer longitudinal casing, and an
endless carrier therein having slats or projectious extending transversely across
the same, and a chamber under said carrier, a water supply in said chamber, and
transverse slats at the top of said chamber adapted to co-operate with the slats of
the moving carrier to break up and separate the stock fed by said carrier,
substantially as specified.
6. The combination with the endless carrier, and a casing in which the same
operates, of a chamber in the bottom of and communicating with said casing, and a

page_text: water supply in the bottom of said chamber, transverse slats extending across said
chamber, said endless carrier having similar transverse slats adapted to move across
the top of said chamber, and ways for supporting said slats immediately above the
transverse slats of said chamber, substantially as specified.
7. The combination with the feeding carrier, of the elevating carrier consisting
of endless driving devices having transverse slats and projections thereon, an outer
casing in which said carrier operates, a false bottom having openings in the same
arranged parallel an outer casing in which said carrier operates, a false bottom
having openings in the same arranged parallel with and in proximity to one side of
said elevating carrier, a water supply arranged above said carrier, and a screen
cylinder forming part of said carrier and communicating with discharge openings,
substantially as specified.
8. The combination in a feeding carrier of the elevating carrier consisting of
endless driving devices having transverse slats and projections thereon, an outer
casing in which said carrier operates, a false bottom having openings in the same
arranged under each half of said elevating carrier belt, said false bottoms being
each arranged parallel with and in proximity to the respective portion of said
carrier belt to which it is adjacent, and stripping devices at one end of said carrier
belt, substantially as specified.
9. The combination with the endless carrier and the casing in which it is
enclosed, a screen cylinder forming part of the driving devices of said carrier, a
false bottom under said carrier, and shower pipes arranged above said carrier
cylinder, substantially as specified.
Dated the 1st day of June 1896.