An Improved Lifting Appliance for Use in Stacking Hay and Corn.
Year: 1896

page_text: Date of Application, 23rd May, 1896-Accepted, 1st Aug., 1896
COMPLETE SPECIFICATION.
An Improved Lifting Appliance for Use in Stacking Hay
and Corn.
We, CHARLES GRIEVES, of Saint Lillian's Down, Saint Georges, Glamorgan,
Mechanic, and JACOB HERBERT DAVIES, of Saintwell Caerau, Glamorgan,
Gentleman, 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 that class of appliances which, with a suitable mast or
crane and hauling tackle, are used in hoisting hay and corn from wagons for
stacking.
The appliance which constitutes this invention consists of a pair of iron or steel
arms pivotted in a block, each arm being furnished at the lower end with a fork.
The arms are free to be turned on their pivot within limits fixed by the walls of
the recesses in the block through which the arms are passed and in which they
cross one another after the manner of the blades of scissors. To the upper end of
each arm is suspended a pulley block which is free to turn on a swivel joint and to
swing on the pin by which it is suspended.
A chain, which is connected to the arms towards the tops of the forks, is.
conducted over the pulleys in the pulley blocks. Hung to this chain by a loop is.
a rope.
A second chain is attached to the arms at points above the block in which.
they are pivotted and in which, as aforesaid, they cross one another. To the second
chain is also connected a rope, namely the rope by which the appliance is raised
and lowered; it being understood that the rope is, as is usual, carried up and.
conducted over a pulley connected to a yard or arm of a mast, or to a suitable
crane, or like apparatus. This hauling rope is, as is also usual, for attachment to
the harness of a horse which, by being led away from the site of the stack, raises
the appliance, and, by approaching the site, lowers the appliance, as is well
understood.
In practically using the appliance, the rope hung to the chain which passes over
the pulleys is pulled so as to draw the forks apart. The appliance is then lowered
upon the hay or corn, and the chain for spreading the arms is now relaxed. The
appliance is then raised by leading the hoisting horse away from the stack, and the
forks are pulled towards one another and a mass of hay or corn is embraced.
This having been raised to the stack, the arms are again spread by a downward
pull on the rope which is hung to the spreading chain, and the hay or corn is freed.
and deposited on the stack.
Referring to the accompanying drawings,
Fig. 1 represents a front view of our improved appliance for use in stacking hay
and corn.
Fig. 2 is an end view of one of the forks and a part of its arm.
Fig. 3 is a plan of the block in which the arms are pivotted and in which they
cross one another.
The appliance consists of a pair of arms a pivotted as at a¹ in a block b in which
they cross one another and in which they are free to be turned within the limits
imposed by the walls of the recesses through which they are passed and which act
as stops in both the spreading and converging action of the arms a.
The arms a are forked at their lower ends, and carry, at their upper ends,.

page_text: pulley blocks in which are centred pulleys or which is conducted the chain d
connected at both ends to the arms a towards the tops of the forks, as shown.
The pulley blocks c are suspended to the arms and are free to turn to a limited
extent about their vertical axes and also to rok on the pins c'.
To the chain d is loosely hung a rope e by pulling at which the arms a are
operated to spread the forks apart. The forks converge towards one another by
their own weight when the downward pull on the rope e is relaxed. A second
chain is connected at each end to the arms at points above the block b, as shown.
To the chain fis attached a rope g which is the rope by which the appliance is
raised and lowered in the operation of stacking and which rope is, for those
purposes, conducted up and passed over a pulley suspended at a suitable height
to a yard-arm or mast, or to other apparatus such as is customary in using hoisting
appliances of the class to which this invention relates.
Raising and lowering of the appliance is effected, either in the ordinary way
by employing a horse to the harness of which the hauling rope g is attached, or the
rope may be pulled and relaxed by other means.
In practically carrying this invention into effect, the appliance, having been
first sufficiently raised through the hauling rope g and chain f, is lowered on to a
load of hay or corn; the forks of the arms a having been previously spread apart
by a pull exerted on the rope e and chain d. The rope g is then pulled and the
forks are drawn towards one another and embrace a mass of hay or corn. This
mass is carried up with the appliance and, when sufficiently raised, is dropped in
place on the stack by drawing the forks of the arms a apart by pulling the rope e
which must, of course, be long enough to extend to the operator who may be on
the ground, but is preferably stationed on the load for stacking.
The appliance which constitutes this invention is simple in construction and
durable, and gives release of the raised mass at any height in its travel.
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 :-
An appliance for use in stacking hay and corn; consisting of a pair of arms
such as a, furnished with incurved forks at their lower ends and crossed and
pivotted in a block such as b, a chain such as d, for connection of a rope for
spreading the forks apart; the said chain being attached at each end to the arms
and conducted over pulleys carried in blocks such as c suspended by a swivel
joint or hinges to the upper ends of the arms a, and a chain such as f, for connection
of the usual lifting or hauling rope; the said chain f being attached to the arms
above the crossing place; the parts being constructed, arranged and operated,
substantially as hereinabove described with reference to the accompanying
drawings.
Dated this 21st day of May 1896.
NICHOLAS WATTS,
Bristol, Chartered Patent Agent.