IMPROVEMENTS IN OR APPERTAINING TO APPARATUS FOR TRIMMING OR DELIVERING GRAIN AND OTHER LIKE MATTER FROM ELEVATORS OR OTHER SOURCES OVER DIFFERENT PARTS OF A QUAY OR OTHER AREA PROVISIONAL SPECIFICATION
Year: 1883

page_text: LETTERS PATENT to Isaac Alexander Mack of Liverpool in the county of
Lancaster for an. Invention of "IMPROVEMENTS IN OR APPERTAINING TO
APPARATUS FOR TRIMMING OR DELIVERING GRAIN AND OTHER LIKE MATTER
FROM ELEVATORS OR OTHER SOURCES OVER DIFFERENT PARTS OF A QUAY OR
OTHER AREA
PROVISIONAL SPECIFICATION left by the said Isaac Alexander Mack at
the Office of the Commissioners of Patents on the 18th August 1883.
ISAAC ALEXANDER MACK of Liverpool in the county of Lancaster "IMPROVE-
MENTS IN OR APPERTAINING TO APPARATUS FOR TRIMMING OR DELIVERING GRAIN
AND OTHER LIKE MATTER FROM ELEVATORS OR OTHER SOURCES OVER DIFFERENT
PARTS OF A QUAY OR OTHER AREA
"
In the delivering of grain upon the quay by means of an elevator, it has hitherto
been delivered all at one point and trimmed by means of spades or machinery.
This invention is designed to avoid this labour. I deliver the grain at a point a
considerable height above the quay, and from the bar at the end of the elevator, I
suspend a receiver or hopper. This receiver has three or more sliding doors, one to
each side, except that facing the ship; if the landward side be shaped like a segment
of a hexagon for instance, there could be four all pointing in different directions, if
of a square form, there would be three, one facing directly from the ship inland,
the other two on opposite sides in lines parallel to the quay wall, I usually prefer
the variety with only three side doors. In front of these doors, I place telescopic
shoots capable of being pulled out, and when the door is opened, of delivering the
grain at a considerable distance horizontally from the receiver in the three or more
different directions. In the floor of the hopper, I place a door and below it a
shorter shoot swivelling on a ball or other joint, so as to deliver grain in any
required direction round the elevator, and sometimes I also place a second door and
canvas spout to deliver the grain vertically downwards; one or more or all the
spouts can be used at once, and the telescopic spouts can be pulled out or, drawn
back as required, so as to deliver the grain at a greater or less distance from the
elevator.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Isaac Alexander Mack in the Patent Office on the 18th February
1884.
ISAAC ALEXANDER MACK of Liverpool in the county of Lancaster "IMPROVE-
"MENTS IN OR APPERTAINING TO APPARATUS FOR TRIMMING OR DELIVERING GRAIN
AND OTHER LIKE MATTER FROM ELEVATORS OR OTHER SOURCES OVER DIFFERENT
PARTS OF A QUAY OR OTHER AREA"
In the delivering of grain upon the quay by means of an elevator it has hitherto
been delivered all at one point and trimmed by means of spades or machinery.
This invention is designed to avoid this labour. I am also enabled by my
apparatus to eliminate a large quantity of dust chaff and light matter which
would otherwise fall with the grain on the quay. By this means I greatly increase
the value of the grain. The invention is best described by aid of the accom-
panying drawings, in which Fig. 1 is a side elevation. Fig. 2 a front view of top
with spouts in part broken off, and Fig. 3 is a plan.
I deliver the grain at a point a considerable height above the quay and from the
boss A at the end B of the elevator by means of framing C I suspend a receiver or
hopper D. This receiver has three or more sliding doors E E one to each side
except that facing the ship, if the landward side be shaped like a segment of a
hexagon for instance there could be four all pointing in different directions, if of a
square form as shown there are three one facing directly from the ship inland, the
other two in opposite sides in lines parallel to the quay wall. I usually prefer the
variety with only three side doors, but sometimes have oven fewer number but
arrange the hopper and spout so that the angle at which the spout stands with
the quay wall can be altered at pleasure. In front of these doors I place telescopic
shoots F F F capable of being pulled out and when the door is opened of delivering
the grain at a considerable distance horizontally from the receiver in the three or
more different directions. In the floor of the hopper I place a door G and below it
a shoot H swivelling on a ball or other joint so as to deliver grain in any required
direction round the clevator, and sometimes I also place a second door and canvas
spout to deliver the grain vertically downwards; one or more or all the spouts can
be used at once and the telescopic spouts can be pulled out or drawn back as
required so as to deliver the grain at a greater or less distance from the elevator.
In some cases in order to lengthen the shoot H I omploy the lengthening piece of
semi-circular forin, which is passed between the shoot H and strengthening ring h
and held thereby firmly in position as shown.
I is a box or tray which I prefer to hang at the end of the elevator to catch the
dust and light matter. The mode of action is as follows: The grain delivered at
falls by its impetus not vertically but in a curve projecting forward into the
hopper D. The light matter however is not projected so far being hindered by the
resistance of the air, so sinks down slowly into box or tray I. Arriving in hopper D
the grain passes into whichever spout is opened, and by regulating the opening of
the respective doors the stream can be divided up between two or more spouts in
any desired proportion. The spout H being movable on a ball or other joint
requires support. I therefore suspend it by the rope K to a pulley J on the
support L on the platform and also frequently especially when it is delivering
sideways also regulate its position by means of a guide rope attached to its end
and worked by a small windlass or by manual power on the ship or other con-
venient point. The pulley ropo K is shown placed considerably in front of the
axis of the hopper but if it be desirable to do without any other guide rope it is

page_text: better that the pulley J should be placed with the centre of its axis immediately
over the centre of the joint of the spout H. The spout can then be swung freely
in all directions and remain in equilibrio without any other guide rope than K.
Having now described my invention and the best mode known to me of carrying
it into effect I claim as my invention to be protected under the Letters Patent:-
1st. The manufacture and use of apparatus for trimming or delivering grain and
other like matter from elevators or other sources over different parts of a quay or
other area, consisting in whole or in part of a hopper or chamber into which the
grain is delivered in combination with telescopic spouts radiating from said-hopper
or chamber and provided with doors or valves to regulate the delivery substantially
as described.
2nd. The combination of a chamber or hopper for receiving the grain and a
spout attached thereto by ball or other joint and guided or supported at the other
end by a rope or ropes or their equivalent, in such manner that it can deliver the
grain at any point in the circumference of a large arc of a circle, substantially as
described.
In witness whereof I the said Isaac Alexander Mack have hereunto set my hand
and seal this sixteenth day of February in the year of our Lord one thousand
eight hundred and eighty four.
ISAAC ALEXANDER MACK. (L.S.)