IMPROVEMENTS IN ELEVATORS OR MACHINES FOR ELEVATING HAY, CORN, STRAW, AND OTHER AGRICULTURAL PRODUCE
Year: 1873

page_text: LETTERS PATENT to William Tasker, of Waterloo Iron Works, near
Andover, Hampshire, for the Invention of "IMPROVEMENTS IN
ELEVATORS OR MACHINES FOR ELEVATING HAY, CORN, STRAW, AND OTHER
AGRICULTURAL PRODUCE."
Sealed the 30th September 1873, and dated the 4th April 1873.
PROVISIONAL SPECIFICATION left by the said William Tasker at
the Office of the Commissioners of Patents, with his Petition, on
the 4th April 1873.
I, WILLIAM TASKER, of Waterloo Iron Works, near Andover,
Hampshire, do hereby declare the nature of my said Invention for
"IMPROVEMENTS IN ELEVATORS OR MACHINES FOR ELEVATING HAY, CORN, Straw,
AND OTHER AGRICULTURAL PRODUCE," to be as follows:-
This Invention relates, first, to a novel mode of folding or unfolding
a jointed elevator trough, that is to say, an elevator trough made in two
or more lengths connected by joints, and of which trough one or more
lengths fold under the other part or parts of the trough, and consists in
placing a pole, bar, or lever in such a position that the part or length
of an elevator trough which is folded down or under the other part of an

page_text: elevator trough may be unfolded and lifted into position, instead of being
pushed up from below. Such pole, bar, or lever may either be fixed on
a joint at one end and travel with the rope or connection to the windlass,
or it may be rigidly fixed and have a pulley placed on it over which the
connection to the windlass may pass.
In carrying out my Invention I employ a pole, bar, or lever, or other
suitable contrivance, by preference connected with the part or length of
trough which in folding is brought under the other length or part of
trough. Such a pole, bar, or lever may be used on one side of the
trough only, or a pole, bar, or-lever may be fixed or placed on both sides
of the trough. This pole, bar, or lever is fixed to the side of the trough,
or one on both sides the trough, in such a position that on being
connected with the windlass used in elevating the trough by a rope,
chain, or other suitable means, and the windlass being turned, the part
of the trough to be unfolded is elevated into the required position for
work. The part of the trough unfolded can be held in that position by
any suitable connection or fastening. When the part of the trough is
required to be folded the pole, bar, or lever is connected with the
windlass, the connection or fastening holding the part of the trough in
position is disconnected, and the part of the trough lowered or folded.
It is obvious that a separate windlass from that used in elevating the
trough may be employed if required. An arrangement of a similar
kind might be placed on the part of the trough not folded with the same
effect, but the arrangement would not be so simple.
The second part of this Invention relates to an improved manner of
constructing the apparatus for raising and folding the trough of an
elevator in which the part of the trough folded back over the other part
of the trough, and consists in an arrangement for elevating the poles for
elevating and folding an elevator by means of rope or chain pullies, or
parts of same, or arms with grooves at the ends attached to such poles,
and avoiding the use of geared wheels attached to the poles for the
purpose of elevating them.
The trough of the elevator is raised into position for working by
means of two poles arranged to turn at or near their lower ends on studs
or spindles fixed to the elevator frame or carriage. To the lower ends
of the poles are fixed chain or rope pullies, or parts of the same, or arms
with suitable grooves in the ends. To these pullies or similar arrange-

page_text: ments the two ends of a rope or chain are fastened, or a rope or chain is
attached, and the chain or rope is passed round a windlass attached to the
frame or carriage of the elevator. This windlass being turned in the
ordinary way gives motion to the rope or chain, which imparts motion to
the poles for elevating the trough through the pullies or parts attached.
By turning the windlass the reverse way the poles may be moved in the
opposite direction. The upper ends of the poles carry a pulley or some
other suitable arrangement for sliding along the trough, and the
windlass being turned the rope or chain elevates the poles which elevate
the trough.
By preference the trough is constructed in two lengths connected
near the middle of the trough by joints, and held in position by a suitable
fastening holding the trough in position for work.
To fold the trough the fastening holding the trough in position is
disconnected, and by turning the windlass so as to clevate the poles the
upper part or length of trough is elevated and folded back over the other
part of the trough.
same.
The third part of this Invention relates to an improved means of
connecting the trough of an elevator to the frame or carriage of the
In clevators heretofore constructed the bottom or lower end of
the elevator trough is connected to the frame or carriage part by a
bearing pin or spindle on both sides of the trough which rests in a block,
socket, or carriage on the frame; but this part of my Invention consists
in so arranging the block, socket, or carriage in which the pin or spindle
supporting the lower frame of trough rests that it can be moved or slid
along the frame. By this means the bottom or lower end of the trough
is brought nearer the rick or stack being formed by the produce elevated,
and this causes the trough to assume a position to deliver the produce at
a greater elevation.
O SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Tasker in the Great Seal Patent Office
on the 1st October 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TASKER, of Waterloo Iron Works, near Andover, Hampshire, send
5 greeting.

page_text: In carrying out my Invention I employ a pole, bar, or lever, or other
suitable contrivance by preference connected with the part or length of
the trough which in folding is brought under the other length or part of
the trough. Such a pole, bar, or lever may be used on one side of
the trough only, or a pole, bar, or lever may be fixed or placed on both
sides of the trough. This pole, bar, or lever is fixed to one or both sides
of the trough in such a position that on being connected with the
windlass used in elevating the trough by a rope, chain, or other suitable
means, and the windlass being turned the part of the trough to be
unfolded is elevated into the required position for work. The part of the
trough unfolded can be held in that position by any suitable connection
or fastening. When the part of the trough is required to be folded the
pole, bar, or lever is connected with the windlass, the connection or
fastening holding the part of the trough in position is disconnected and
the part of the trough lowered or folded.
It is obvious that a separate windlass from that use in elevating the.
trough may be employed if required. An arrangement of a similar kind
might be placed on the part of the trough not folded with the same
effect, but the arrangement would not be so simple.
same.
The second part of this Invention relates to an improved means of
connecting the trough of an elevator to the frame or carriage of the
In elevators heretofore constructed the bottom or lower end of
the elevator trough is connected to the frame or carriage part by a
bearing pin or spindle on both sides of the trough which rests on a block,
socket, or carriage on the frame. Now this part of my Invention
consists in so arranging the block, socket, or carriage in which the pin
or spindle supporting the lower part of the trough rests that it can be
moved or slid along the frame. By this means the bottom or lower
end of the trough is brought nearer the rick or stack which is being
formed by the produce elevated, and this causes the trough to assume
a position to deliver the produce at a greater elevation.
And in order that my said Invention may be fully understood I shall
now proceed more particularly to describe the same and for that purpose
shall refer to the two Figures on the annexed Sheet of Drawings, the
same letters of reference indicating corresponding parts in both the
Figures.
Figure 1 of my Drawings represents a side elevation of my improved
elevator folded up ready for transport, the red lines indicating the upper

page_text: end of the elevator as unfolded or extended for use; Figure 2 is an
elevation in its extended position corresponding to the red lines in
Figure 1, and shewing one half or side only of the delivery end of the
elevator.
A, A, are the ground or travelling wheels supporting the principal 5
frame B of the elevator; C, C¹, is the elevator trough or the part up
which the produce being elevated passes, the part or length C¹³ of the
trough being capable of being folded back or under the part C; D is a
pole for raising the elevator, a similar pole not shewn in my Drawings
being situate at the opposite side of the principal frame. These poles 1
work on the axle D¹, and at their upper ends carry the single flanged
pullies D³ which in elevating the trough travel down the under side of
the lower section C thereof; F is one of two poles, bars, or levers for
folding and unfolding the part of the trough C¹, such poles F being
connected to C¹ by the strap or part of the joint G and working on the 1
joint pin F; H is the drum or rope windlass round which the ropes J
and S for either elevating or folding the elevator are wound, and to
which drum motion is imparted by any suitable arrangement of gearing
from the handle I. The drum or windlass H is double or has a division
or central flange to enable the two ropes to be wound upon it in opposite 2
directions. One of these ropes J passes from the windlass H to the
upper ends of the poles D whilst another rope K is connected to the free
ends of the poles, bars, or levers F and has an eye crook or noose K³
which can be connected to the second rope S on the windlass drum
when folding or unfolding the part C¹ of the trough, or can be connected 2
to a dog link K¹ in order to hold the trough in position for work. L is a
tie or brace rod connecting the tops of the poles F to the upper part of
the trough; M is a roller carried in bearings in the principal frame for
guiding the end C¹ of the trough when folding; S is the second rope
before referred to which is also attached to the drum H, and wound
thereon in an opposite direction to the rope J.
The elevator is shown in red lines as extended for work, but it can be
raised to a greater elevation by winding the rope J on the windlass H.
To bring the elevator from the position shown in red lines in Figure 1
to the folded position shown in black lines I uncoil the ropes by hand &
from its half of the drum H and I attach its end to the hook or eye K²;
I then uncouple the dog link K¹ and by the handle I wind up the горе
on to the windlass or drum H, at the same time paying out or unwinding
J

page_text: the rope S. The result will be that the poles D are brought into an
almost vertical position, as shewn by the black dotted lines in Figure 1,
and the part C¹ of the trough which folds at the joint F¹ will be simul-
taneously lowered so that the end just clears the ground; I then take
the long roller M and placing it across the part of the trough C¹ push it
towards the axle of the elevator until it drops into its bearings on the
frame B and thus retains the folded part C¹ in position, as shewn in my
Drawing. The rope S can now be uncoupled, and the rope J being let
out again the elevator can be lowered into position, as in black lines in
Figure 1.
To unfold or extend the elevator the operation above described is
reversed.
I shall now proceed to describe the second part of my Invention :-
O is a plate sliding on the frame B, to which the hopper N, N, and the
bottom chain pulley spindle bearings P are attached; O¹ is a plate
attached to O and which acts as a guide; on O¹is an eye or eyes to
which the rope S on the drum or windlass H (when not attached to the
hook or eye K³) can be attached, and on motion being given to the
drum the plate O, and consequently the hopper N, N, and the elevator
trough C, C¹, which also rests on the spindle P, are drawn towards the
stack or point where the elevator delivers, and the produce therefore can
be delivered at a greater elevation or further on the stack. To bring the
elevator to its former position the rope S before being attached to O¹ is
passed round the guide pulley R and on causing the windlass H to
revolve the plate O can be drawn away from the windlass H. It is
manifest that this might be done by gearing.
By preference I place a windlass or rope drum H, a pole D, a pole bar
or lever F, a rope J, and a rope K, a tie bar L, a plate O, O¹, and a
rope 8 on both sides of the elevator.
Having now described and particularly ascertained the nature of my
said Invention, and the manner in which the same is or may be used or
carried into effect, I would observe in conclusion that I do not claim
generally the raising or folding of an elevator by means of ropes and
poles, or ropes, or poles; but what I consider as novel and original, and
therefore claim as the Invention secured to me by the hercin-before in
part recited Letters Patent is,-
First. The peculiar arrangement and combination of rone or ropes and

page_text: the pole, bar, or lever, or poles, bars, or levers, substantially as and for
the purpose herein-before described, and illustrated by the Drawings
annexed.
Secondly. Constructing and arranging the hopper, the lower end of
the trough, and the lower chain pullies so that they may be slid along
the principal frame, substantially as and for the purpose herein-before
described, and illustrated by the Drawings annexed.
In witness whereof, I, the said William Tasker, have to this my
Specification set my hand and seal, this Twenty-seventh day of
September One thousand eight hundred and seventy-three.
WILLIAM TASKER. (L.S.)