Improved Apparatus for Screening and Delivering Coal.
Year: 1892

page_text: Date of Application, 14th Dec., 1892
Complete Specification Left, 9th Sept., 1893-Accepted, 14th Oct., 1893
PROVISIONAL SPECIFICATION.
Improved Apparatus for Screening and Delivering Coal.
We, JOHN ELLIS, and CHARLES M'HARDY, both of 21 Regent Quay,
Aberdeen, in the County of Aberdeen, Ship Owners and Coal Merchants, do
hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus for screening and delivering coal, the objects
being to screen the coal as it is being delivered from the ship to the waggon, and
to carry out such operations without causing dust.
In carrying out our invention we construct the apparatus of such form and
dimensions as is most suitable for say a railway waggon or waggons, such apparatus
being preferably made of metal. The screen or screens are placed at an angle of
about 45° and are in connection with shoots from which the screened coal is
delivered to a waggon, and the small to bags or other receptacles. If two or more
screens be used the coal may be separated and delivered in three or more portions,
as for example; large coal, nuts, and dross. The apparatus is carefully covered
in, in order to prevent the dust from causing a nuisance.
Dated this 12th day of December 1892
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.
COMPLETE SPECIFICATION.
Improved Apparatus for Screening and Delivering Coal.
We, JOHN ELLIS, and CHARLES M'HARDY, both of 21 Regent Quay,
Aberdeen, in the County of Aberdeen, Ship Owners and Coal Merchants, 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 relates to apparatus for screening and delivering coal, the objects
being to screen the coal as it is being delivered from the ship to the waggon, and
to carry out such operations without causing dust.
In carrying out our invention we construct the apparatus of such form and
dimensions as is most suitable for say a railway waggon or waggons, such apparatus
being preferably made of metal. The screen or screens are placed at an angle of
about 45° and are in connection with shoots from which the screened coal is
delivered to a waggon, and the small to bags or other receptacles. If two or
more screens be used the coal may be separated and delivered in three or more
portions, as for example; large coal, nuts, and dross. The apparatus is carefully
covered in, in order to prevent the dust from causing a nuisance.
In order that our invention may be properly understood and readily carried into
effect, we have hereunto appended two explanatory sheets of drawings, in the
several figures of which corresponding parts are marked with the same numerals
of reference.
Figure 1. (Sheet 1.) is a sectional elevation at A. A. (Figures 2. and 3.);
Figure 2. a half view looking in the direction of the arrow B; and Figure 3. a
half view looking in the direction of the arrow C. (Figure 1.).
Figure 4. (Sheet 2.) is a sectional elevation showing another modification of the
apparatus, Figures 5. and 6. end, and side elevations respectively of the apparatus
mounted on wheels; and Figure 7. the plan of a screen employed in connection
with same

page_text: In the modification as illustrated by Figures 1. to 3., 8. is the platform upon
which the men stand when delivering the coal into the shoot 9. 10. is the screen
over which the coal passes, the large coal being guided by the adjustable shoot 11.
to fall into waggons or
Carts not shown in the drawings. 12. are chains attached
to each side of the shoot.11. and held near their other ends by hooks 13. By
altering the length of the chains 12. the mouth of the shoot 11. may be raised or
lowered, this being done by attaching different links of such chains to the hooks.
14. and 15. are canvas flaps fixed to the cover 16. of the shoot, but free to move
to and fro at their lower extremities, their purpose being to keep the dust from
passing out of such shoot, when coal is being screened. 17. is the hopper, into
which the small coal falls, such coal being allowed to pass into bags, which are not
shown in the drawings, such bags being attached to the orifices 18; sliding doors 19.
regulating the supply. 20. are the supporting frames made of wood as shewn in
the drawings. These could be of metal if required. 21. are supporting brackets
attached to the shoot, and used to couple it to the frames 20. 22. are brackets for
receiving the axles of wheels, of which more hereafter.
Figure 4. illustrates another modification of the apparatus, in which two screens
are used. 10. is the screen over which the coal first passes, as previously explained.
The smaller coal which, falls through such screen coming upon a slide 23, passes
from it to a second screen 24, and from thence to the orifices 18. and 25. By
arranging the two screens in the manner described, large coal passes out by the
shoot 11, smaller coal by the orifices 18, and still smaller by the orifices 25.
platforms upon which the bags rest when being filled and removed.
26. are
In order that the apparatus may be readily transported from place to place, it
may be mounted upon wheels 27.
We wish it to be particularly understood that we do not limit ourselves to the
precise details of construction hereinbefore described and illustrated on the annexed
drawings, but that we hold ourselves free to make such changes and alterations, as
conform with the disposition and scope of our invention.
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
In apparatus for screening and delivering coal :-
(1) The general construction, combination and arrangement of parts, substan-
tially as, and for the purposes herein set forth, and illustrated on the annexed
drawings.
(2) The combination of the covered in shoots 9. and 11, with the screen 10,
hopper 17, orifices 18, and sliding doors 19, substantially as hereinbefore described
and illustrated, with reference to Figures 1. 2. 3. and 7. of the annexed
drawings.
(3) The combination of the covered in shoots 9. and 11, with the screens 10.
and 24, the slide 23, hopper 17, orifices 18. and 25, and sliding doors 19, substan-
tially as hereinbefore described and illustrated, with reference to Figures 4. 5. 6.
and 7. of the annexed drawings.
(4) The use of the wheels 27. as described and illustrated.
* Dated this 6th dew of Sontember 1802
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for 'Applicants.