Improvements in Apparatus Applicable for Riddling or Separating Ashes and Cinders or other Granular or Fragmentary Material.
Year: 1887

page_text: Date of Application, 13th Apr., 1887
Complete Left, 10th Jan., 1888
Complete Accepted, 24th Feb., 1888
Improvements in Apparatus Applicable for Riddling or Separating
Ashes and Cinders or other Granular or Fragmentary Material.
I, ROBERT CLAGUE of Castletown in the Isle of Man, Ironmonger and Plumber, do
hereby declare the nature of this invention to be as follows:-
This invention has for its object a riddling or separating apparatus, that shall
thoroughly and conveniently separate the fine dust or ashes from the cinders or larger
pieces, without allowing the dust to fly about.
In place of shaking the riddle, and so incidentally shaking the charge, my invention
differs from nearly all, or all others, in that it shakes the charge only, leaving the
riddle itself stationary. The charge of ashes etcetera is passed over the riddle by a
combined stirring and convoying mechanism, which, while thoroughly stirring and
moving the stuff forward over the riddle, shall not crush or smash the lumps.
The apparatus I have designed for effecting this, consists of a cylinder (or trough)
with a semicircular bottom of wire work or other perforated material containing an
archimedian screw on a shaft with bearings at both ends of the cylinder, the cylinder
A crank handle is provided for
being of very little larger diameter than the screw.
the screw shaft, and a box below the cylinder to catch the small matter. This box
has a trap bottom, or a door at end as found most convenient, and is supported on
wheels and legs, and provided with handles like a two-wheeled wheel-barrow. A
hopper with lid admits the cinders into the cylinder or trough, and these escape at the
other end of the cylinder which is preferably open.
The mode of action is as follows:
The ashes and cinders from the grate are placed in the hopper, and the handle
turned till the screw has passed them through the cylinder. The fine dust falls
through into the box below, which can be movable, or be a stationary box with a
movable drawer. They are emptied by opening a door in front and tipping the

page_text: barrow, or by drawing out the drawer if there be one, or by removing the bottom box
bodily, or by opening the trap bottom by a catch when the box is hoisted over a
wagon or other receptacle. In order to use the bottom box as a dust bin, I prefer to
provide it with a side opening and shoot. The cylinder and archimedian screw shaft
and handle with supports can be used independently of the other parts of the apparatus,
for sieving or riddling purposes.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus Applicable for Riddling or Separating
Ashes and Cinders or other Granular or Fragmentary Material.
I, ROBERT CLAGUE of Castletown in the Isle of Man, Ironmonger, and Plumber, 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
This invention has for its object a riddling or separating apparatus, that shall
thoroughly and conveniently separate the fine dust or ashes from the cinders or larger
pieces, without allowing the dust to fly about.
In place of shaking the riddle it is kept stationary, or a rotating motion is imparted
thereto. The charge of ashes, etcetera, is passed over the riddle by a combined
stirring and conveying mechanism, which while thoroughly stirring and moving the
stuff forward over the riddle, does not crush or smash the lumps.
The invention is best described by aid of the accompanying drawings, in which,
Figure 1 is a longitudinal section of the apparatus.
Figure 2 a cross section of Figure 1 on the line X, Y.
Figure 3 in part a longitudinal section showing the apparatus provided with wheels
and handles, to facilitate removal from place to place, the box being provided with a
drawer for emptying the dust.
Figure 4 plan of a device for releasing the trap bottom of the box shown in
Figure 1.
Figure 5 a device for raising the apparatus, so that the dust can be emptied direct
from the box into a cart.
In Figures 1 and 2, A is a cylinder having its periphery made of wirework or other

page_text: perforated material, or of rods a placed longitudinally, so as to leave a small space
between each. The cylinder contains an archimedian screw B attached to the inside
periphery thereof, the cylinder being mounted on a shaft C with bearings at both
ends. Or if desired, an archimedean screw, very little smaller than the diameter of
the cylinder A, could be mounted on the shaft so as to revolve with or independently
of the cylinder. A crank handle D is provided on the screw shaft C, and a box or
receptacle E is provided below the cylinder to catch the small matter. This box E
has a trap bottom F provided with a hinge such as f, and a fastening such as f. It may
have a door G at one end if found convenient. The pivoted catches are shown in
plan in Figure 4, though of course any other suitable device may be employed. They
consist of a rod or spindle f provided with projections 3, the rod 2, being supported
and capable of sliding in brackets f*, secured to the side of the box E. When the
rod is moved forward, the projections f³ strike the catches f¹, thus depressing one end
of the pivoted catch, and raising the hasp end from engagement with the trap door F,
so that the latter will now open. The catches f¹ can be provided with springs so as
to spring back again when the pressure of the projections f³ is removed therefrom.
The box E may be supported on wheels H and legs I, and provided with handles J
like a two-wheeled wheelbarrow, so that the apparatus can easily be transported.
hopper J¹ with lid j admits the cinders or other material into the cylinder A, and these
escape at the other end of the cylinder, preferably by a shoot K. If desired, the
cylinder A may be stationary, the screw B and shaft C being made to revolve
therein.
In this case it could be a trough or other shape with open or closed top.
The mode of action of the apparatus is as follows:-
A
The ashes and cinders from the grate are placed in the hopper J, the handle D
turned until the screw B has passed them through the cylinder A, the cylinder being
preferably placed sloping, so that the material will more readily pass through it. The
fine dust falls through into the box or receptacle E, which can be a movable or a
stationary box with a movable drawer, such as L (Figure 3). It is emptied by
opening the door G (Figure 1) and tipping the barrow, or by drawing out the
drawer L (Figure 3) if there be one, or by removing the bottom box bodily, or by
opening the trap botton F (Figures 1 and 2) by means of the catch f¹ when the box
is hoisted over a wagon or other receptacle.
In Figure 5 I show an arrangement for hoisting the apparatus over a cart wagon or
other receptacle, M is a jib or davit held in brackets N on a cart O or pivoted thereto,
so that it can be readily removed and attached to another cart if desired. The jib M
is provided with pulleys or sheaves P, which guide the lifting chain Q. One end of
the chain can be attached to the apparatus by a handle or chain q, the other end to a
shaft, R, journaled to the underside or to other convenient part of the wagon O. When
the handle S of the shaft R is turned, the chain or cord Q is wound on to the shaft, and
the apparatus is thus raised above the cart The jib M can now be turned on its pivot,
so that the contents of the box E can be emptied into the cart.
In order to use the box E as a dust bin, I prefer to provide it with a side opening
and shoot T. The shoot may be hinged so that the opening can easily be closed when
desired, and fastened by a suitable catch. A guard plate t may be provided to protect
the cylinder A.
The cylinder A or trough can be used independently of the other parts of the
apparatus for sieving or riddling purposes.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. The apparatus for riddling or separating ashes and cinders, or other granular or
fragmentary material, which consists of a cylindrical sieve A, having an archimedean
screw B therein, which revolves with it or independently, and a box or receptacle E
for holding the siftings, the cinders or other material being fed into the cylinder by
means of a hopper, and conveyed over the perforated or screening surface by the

page_text: archimedean screw B, the fine dust falling through into the box or receptacle from
whence it can be removed by the trap bottom F, side door G or drawer L, substantially
as described.
2. In an apparatus for riddling or separating cinders and other substances, the
combination with the box or receptacle E for holding the siftings of a shoot T and
guard plate t for protecting the sieve A, the said shoot being hinged to the box so as
to be capable of being closed when the apparatus is not in use, substantially as and
for the purpose described.
3. An apparatus for riddling or separating cinders and other substances, substantially
as described, and mounted on wheels, whercon it can be wheeled from place to place
like a harrow.
4. The combination with the apparatus for riddling or separating einders and other
substances as herein described, of lifting gear for hoisting the apparatus above a cart,
wagon or other receptacle, and depositing the siftings therein,. consisting of a jib or
davit M bracketed or pivoted so as to be capable of turning, and provided with
sheaves for guiding the lifting chain, and a shaft R for raising the said chain,
substantially as set forth.
Dabad this oth
Ր T
1000