Improvements in or relating to Apparatus applicable for Ventilating Purposes and for Intercepting and Depositing or Recovering Dust and the like in Suspension in the Air.
Year: 1890

page_text: Date of Application, 19th Feb., 1890
Complete Specification Left, 19th Nov., 1890-Accepted, 20th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Apparatus applicable for Ventilating
Purposes and for Intercepting and Depositing or Recovering
Dust and the like in Suspension in the Air.
We, GEORGE MARSDEN PARKINSON and TOM PARKINSON of Doncaster Mills,
Doncaster, in the County of York, Millers, do hereby declare the nature of this
invention to be as follows:-
This invention may he applied in most cases where it is desired to filter or purify a
dust laden atmosphere whether the object be merely to purify the air or to recover the
particles which may be in suspension in the air. Generally speaking the apparatus
would be placed in a draught or current of air but so long as there was sufficient
movement in the air to cause the particles to be brought into contact with the inter-
cepting devices the strength of the current would not be of much importance.
The invention has been particularly designed with reference to mechanism for
purifying drying or conditioning grain a considerable amount of dust being
naturally carried by the air leaving the grain, but as above stated it is adapted
for general application.
In carrying out the invention we prefer to employ a number of single or double
sheets or S or other shaped channels arranged side by side and overlapping, but
leaving a sufficient space between for the passage of the air. These channels may be
arranged in vertical horizontal or inclined rows as required, and each channel may
be inclined in the direction of its own length to facilitate the removal of the deposited
particles by gravity which may be facilitated if desired by constant or intermittent
shaking or knocking.
Taking an end view of the S shaped channels the end of each curl may be arranged
to rest at about the centre of the curl of the next channel and so on so that the air in
passing through has to come in contact with as much of the surface of the channels as
possible or as may be conveniently arranged.
When desired the channels may be chilled or moistened by running water over or.
through them or by other convenient means so as to facilitate the deposit of the
particles.
Where the channels used are C shaped they would be intercalated so that one C
would in cross section take the ends of two other C's. Where channels composed of
simply curved sheets were employed they would be similarly placed but the points
would not overlap so far as in the case of the C's.
Where a number of S or C shaped channels were employed a complete set of them
would present in face view something the appearance of a corrugated sheet and the air
might be driven so as to impinge against the face of this sheet passing through it
and out at the other side. If preferred however with a similar arrangement of plates
in a suitable framing the air could be caused to pass in a direction perpendicular to
the face of such sheet.
This apparatus may be conveniently employed for general ventilating purposes and
openings in buildings or in windows and other partially or wholly enclosed spaces for
the purposes of ventilation or for purifying the air.
Any suitable means may be provided for regulating the space between the sheets
or sections; this may be conveniently done by providing a spindle to each sheet
either by fixing a point at each end of the sheet or carrying a rod right along it and
turning the sheets by means of the pivots thus provided. Crank arms provided on
the end of each pivot and all connected together would provide a convenient means
for accomplishing the adjustment or in a simpler form a suitable rod or equivalent
of wood or metal provided with notches or recesses for each section and resting.

page_text: upon all the sections would enable them to be moved as required. Instead of the
rod a cord chain or wire connected with each section would produce the same
result. Or the sections may be turned by means of the crank arms or otherwise and
locked where required by means of a rod bar or equivalent.
The channels or sections may be made of any suitable material and especially where
they are to be used for ventilating purposes, they may with advantage be made of
glass so as to serve as windows as well as ventilators and would thus be useful as the
fixed windows for railway carriages and the like.
It will be obvious that we do not confine ourselves to the exact form of channels or
arrangements thereof as described but that deviations may be made without departing
from the spirit of our invention.
Dated this 10th day of Fabru 1800
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Apparatus applicable for Ventilating
Purposes and for Intercepting and Depositing or Recovering
Dust and the like in Suspension in the Air.
We, GEORGE MARSDEN PARKINSON and Tом PARKINSON, of Doncaster Mills,
Doncaster, in the County of York, Millers, 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 may be applied in most cases where it is desired to filter or purify
a dust laden atmosphere whether the object be merely to purify the air or to recover
the particles which may be in suspension in the air. Generally speaking the apparatus
would be placed in a draught or current of air but so long as there is sufficient move-
inent in the air to cause the particles to be brought into contact with the intercepting
devices the strength of the current would not be of much importance.
In carrying out the invention we prefer to employ a number of single or double
sheets of S or other shaped channels arranged side by side and overlapping, but
leaving a sufficient space between for the passage of the air. These channels may be
arranged in vertical horizontal or inclined rows as required, and each channel may be
inclined in the direction of its own length to facilitate the removal of the deposited
particles by gravity which may be facilitated if desired by constant or intermittent.
shaking or knocking.
Taking an end view of the S-shaped channels the end of each curl may be arranged
to rest at about the centre of the curl of the next channel and so on so that the air in
passing through has to come in contact with as much of the surface of the channels as
possible or as may be conveniently arranged.
When desired the channels may be chilled or moistened by running water over
or through them or by other convenient means so as to facilitate the deposit of
the particles.
Where the channels used are C-shaped they would be intercalated so that one C
would in cross section take the ends of two other C's.
Where a number of S or C shaped channels are employed a complete set of them
would present in face view something the appearance of a corrugated sheet and the
air would generally be driven so as to impinge against the face of this sheet passing
through it and out at the other side.
This apparatus may be conveniently employed for general ventilating purposes and
openings in buildings or in windows and other partially or wholly enclosed spaces for
the purposes of ventilation or for purifying the air.
Any suitable means may be provided for regulating the space between the
sheets or sections; this may be conveniently done by providing a spindle to each
sheet either by fixing a point at each end of the sheet or carrying a rod right
along it and turning the sheets by means of the pivots thus provided. Crank

page_text: arms provided on the end of each pivot and all connected together would provide
a convenient means for accomplishing the adjustment or in a simpler form a suitable
rod or equivalent of wood or metal provided with notches or recesses for each section
and resting upon all the sections would enable them to be moved as required. Instead
of the rod a cord, chain or wire connected with each section would produce the same
resalt. Or the sections may be turned by means of the crank arms or otherwise and
locked where required by means of a rod bar or equivalent.
The channels or sections may be made of any suitable material and especially where
they are to be used for ventilating purposes, they may with advantage be made of
glass so as to serve as windows as well as ventilators and would thus be useful as the
fixed windows for railway carriages and the like.
It will be obvious that we do not confine ourselves to the exact form of channels or
arrangements thereof as described as deviations may be made without departing from
the spirit of our invention.
In the accompanying drawings, Figs. 1 and 2 are end elevations of a set of
these channels those in Fig. 1 being closed so as to present small passage room
between them while those in Fig. 2 are opened wide so as to present little or no
obstruction to the passage of the air. Fig. is a perspective view of a portion
of the channels held in position by a cross bar. Fig. 4 is a perspective view of
a portion of the channels of a different shape. Figs. 5 and 6 are end elevations
of a set of channels in different positions; Fig. 5 open, Fig. 6 nearly closed
and Fig. 7 shows another form or shape of channel, and Figs. 8 and 9 show
further modifications.
Like letters represent like parts throughout the drawings.
A represents the channel which may be turned upon its pivot B so as to vary the
relative positions of the channels the arrows in the drawings indicating the direction
of the air currents passing through; in Fig. 1 it will be seen that the amount of space
provided is not very large while in Fig. 2 the channels are so turned as to present
very little obstruction and to allow almost a free passage for the air. Any intermediate
position can be assumed and as shown in Fig. 6 the channels may be so turned as
either to quite or practically touch thus preventing the passage of the air at all.
Returning to Fig. 1 the arrows show that the direction of the current of air is
against the surface of the channels the current being split up and deflected so as to
pass between the two plates as indicated by the arrows and it will be seen by reference
to the figs. generally that the edge of one channel is so arranged as to terminate at
about the centre of the hollow of the channel next to it although this exact position
would vary with the turning of the channel upon its axis.
In Fig. 3 the channels A are supposed to be carried upon pivots B as in Fig. 1 and
are fixed in one particular position by the bar C preferably of wood which is recessed
at Cso as to partly fit over the curved surface of the channels. In Figs. 5 and 6 the
pivots B carry arms D jointed together by a rod E by which they can all be
simultaneously turned to any required angle; the rod E or one of the arms D may
carry a handle
by which the tilting can be carried into effect and means may be
provided in connection with the handle or with the rod or arms to secure the channels
in any required position.
In Figure 4 the principle is exactly the same but the shape of the channels is
different the edges being curled back towards each other somewhat like the letter C
and so placed together that the edges of two channels enter the hollow portion of
the C; by this means as shown by the arrows, the air has to follow a very tortuous
course before it can pass through the obstruction. In all these cases it will be seen that
the arrangement is such that while a suitable channel is provided for the passage of
the air a large surface of the channels has to be traversed by the air in passing,
thus affording ample opportunity for, the depositing of any impurities carried by
the air.
In Figure 7 the channels are shaped like a letter S and a very complete trough is
provided for the reception of the impurities while the air has a considerable portion of
the surface of the channels to traverse before it escapes; the arrangement shown

page_text: would be suitable for a horizontal air current, but it may be adapted for a vertical or
other current.
Figures 8 and 9 represent an arrangement very similar to those illustrated in the
earlier figures but the apparatus is practically duplicated the channels A being arranged
in parallel rows and the air passing through both rows.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is, to be performed, we declare that what
we claim is :-
1. In apparatus such as described the combination of two or more overlapping
curved channels such as A substantially as and for the purpose described and
illustrated in the accompanying drawings.
2. In apparatus such as described the combination with a series of curved channels
such as A adapted to turn upon their pivots B of arms such as D connected together by
a rod or equivalent E substantially as described and illustrated in Figures 5 and of
the accompanying drawings.
3. In apparatus such as described the combination with a series of curved channels
such as A pivotted or hung at B of a bar such as C recessed at C¹ substantially as
described and illustrated in Figure 3 of the accompanying drawings for the purpose
of retaining the channels in the required position.
4. In apparatus such as described the combination of three or more C shaped
channels such as A arranged to overlap each other substantially as described and
illustrated in Figure 4 of the accompanying drawings.
5. In apparatus such as described the combination of two or more overlapping
S-shaped channels substantially as described and illustrated in Figure 7 of the
accompanying drawings.
Dated this 14th day of November 1890.
GEORGE MARSDEN PARKINSON.
TOM PARKINSON.
W. P. Thompson & Boult,
Agents for the Applicants.