IMPROVEMENTS IN MACHINERY FOR ELEVATING CORN, HAY, STRAW, AND OTHER AGRICULTURAL PRODUCE.” PROVISIONAL SPECIFICATION
Year: 1873

page_text: LETTERS PATENT to Henry Tasker, of the Firm of Tasker and Sons,
of Waterloo Iron Works, near Andover, in the County of Hants,
for the Invention of "IMPROVEMENTS IN MACHINERY FOR ELEVATING CORN,
HAY, STRAW, AND OTHER AGRICULTURAL PRODUCE.”
PROVISIONAL SPECIFICATION left by the said Henry Tasker at the
Office of the Commissioners of Patents, with his Petition, on the
8th February 1873.
I, HENRY TASKER, of the Firm of Tasker and Sons, of Waterloo Iron
Works, near Andover, in the County of Hants, do hereby declare the
nature of my said Invention for "IMPROVEMENTS IN MACHINERY FOR ELE-
VATING CORN, HAY, STRAW, AND OTHER AGRICULTURAL PRODUCE,'
to be as
follows:-
"
This Invention has for its object improvements in the construction,
arrangement, and combination of elevators or machines for elevating

page_text: straw, corn, hay, or other agricultural produce, whereby the trough or
part of elevator up which the produce is carried may be used of a great
length, and is also capable of being conveniently packed for travelling or
whilst out of use.
By this Invention the produce can be elevated to a great height, and
the elevator when not in use is capable of being so compactly folded
that it occupies but a small space. For effecting these objects I employ
a trough in the elevator constructed in three, four, or more parts or
lengths. Two or more of these parts or lengths are so constructed as to
be capable of sliding together on the telescopic principle, whilst one or
both ends of the clevator trough can be folded under or over the other
part or parts of the trough.
.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henry Tasker in the Great Seal Patent Office on
the 5th August 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
TASKER, of the Firm of Tasker and Sons, of Waterloo Iron Works, near
Andover, in the County of Hants, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of February, in the year of
our Lord One thousand eight hundred and seventy-three, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Henry Tasker, Her special license that
I, the said Henry Tasker, my executors, administrators, and assigns, or
such others as I, the said Henry Tasker, my executors, administrators,
or assigns, should at any time agree with, and no others, from time to
time and at all times thereafter during the term therein expressed,
should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands,
and Isle of Man, an Invention for "IMPROVEMENTS IN MACHINERY FOR
ELEVATING CORN, HAY, STRAW, AND OTHER AGRICULTURAL PRODUCE," upon the
condition (amongst others) that I, the said Henry Tasker, my executors
or administrators, by an instrument in writing under my hand and seal,

page_text: should particularly describe and ascertain the nature of the said In-
vention, and in what manner the same was to be performed, and cause
the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said Henry Tasker, do hereby declare
the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the accompanying
Drawings, and to the letters and figures marked thereon, that is to
say:―
My said Invention has for its object improvements in the construction,
arrangement, and combination of elevators or machines for clevating
straw, corn, hay, or other agricultural produce, whereby the trough or
part of elevator up which the produce is carried may be used of a great
length, and is also capable of being conveniently packed for travelling or
whilst out of use.
By this Invention the produce can be elevated to a great height, and
the clevator when not in use can be so compactly folded that it will
but a small
In effecting these objects I employ a trough
space.
occupy
in the elevator constructed in three, four, or more parts or lengths.
Two or more of these parts or lengths are so constructed as to slide
together on the telescopic principle, whilst one or both ends of the
elevator trough can be folded under or over the other part or parts
thereof.
And in order that my said Invention may be fully understood I shall
purpose
now proceed more particularly to describe the same, and for that.
shall refer to the annexed Drawing, which represents a side elevation of
my improved or combined telescopic and folding elevator. In its general
construction and arrangement this elevator resembles the one which is
described and illustrated in the Specification of Letters Patent granted
to William Tasker, jun', dated March 17th, A.D. 1871, No. 725, but
with the addition of the sliding or telescopic arrangement thereto. I
shall therefore confine my present description to the additions or im-
provements which are not comprised in the said former Specification,
using the same letters of reference for indicating those parts which I
0

page_text: may have to refer to, and which correspond to the same parts in the
Specification herein-before referred to.
out.
T, T, represents what I may call the fixed part of the trough of the
elevator, the lower end thereof being jointed at N so as to fold under-
neath when required, and the whole being supported upon two or more
running wheels A, A, and raised or lowered by a similar arrangement of
gearing to that described in the said Specification, and which need not
therefore be further referred to here. Within the fixed part T of the
. trough there is fitted to slide telescopically the sliding part of the trough
T, T', which is also made to fold down at the upper end by being jointed
at N¹. The full lines in my Drawing show the inner or sliding part of
the trough as drawn inwards, and the dotted lines shew it partly slid
The fixed parts T, T, of the trough are braced by the tic rods or
couplings O, O, and 0¹, O¹, a like arrangement of tie rods or couplings
O3 and 0, 0, being fitted to the sliding or combined telescopic and
folding part T¹ of the trough, which part is caused to slide outwards to
any desired extent by means of an endless chain a attached at 6 to the
lower end of such sliding part, and passing round a guide pulley b¹ and
back to a windlass c, on turning which by means of the worm and worm
wheel d the chain will cause the part T' of the trough to slide out more
or less. I do not confine myself, however, to this or any other mode of
imparting the sliding motion to the inner or moveable part of the
trough, as various well-known mechanical arrangements may obviously
be employed for that purpose. e is the tine chain, which may be worked
precisely as in the ordinary elevators, but it should be so made as to
admit of being readily taken in or let out to suit the length to which the
trough is adjusted, as one of the carrier pullies f is fitted to the end of
the moveable part T¹ of the trough, and the other f¹ remains a fixture
at the lower end of the fixed part T of the trough.
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
either a sliding or a folding trough as forming separately any part of my
Invention, but what I consider to be novel and original and therefore
claim as the Invention secured to me by the herein-before in part
recited Letters Patent is, the construction and use of what are known as
straw elevators wherein combined telescopic and folding troughs are

page_text: employed, substantially as and for the purpose herein-before described
and illustrated by the Drawings annexed.
In witness whereof, I, the said Henry Tasker, have to this my
Specification set my hand and seal, this Thirtieth day of July,
One thousand eight hundred and seventy-three.
HENRY TASKER. (L.S.)