IMPROVEMENTS IN DOUBLE-FURROW PLOUGHS."
Year: 1873

page_text: LETTERS PATENT to George Cubitt, of North Walsham, Civil Engineer,
for the Invention of "IMPROVEMENTS IN DOUBLE-FURROW PLOUGHS."
PROVISIONAL SPECIFICATION left by the said George Cubitt at the
Office of the Commissioners of Patents, with his Petition, on the
17th April 1873.
I, GEORGE CUBITT, of North Walsham, Civil Engineer, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN DOUBLE-
FURROW PLOUGHS," to be as follows:- -
My plough is made so that it can be used both as a single or double-
furrow plough for the purpose of drawing out and making up work
without the aid of any other plough.
Also my Invention consists of a frame working on a fulcrum, to
which is attached a fore carriage axle and wheels for the purpose of
locking and drawing, by which means the plough turns into and out
of work with the greatest case; the depth of ploughing is regulated by a

page_text: bolt in a transverse direction through the frame on which the plough
rests when at work.
The plough is lifted out of its work by a chain pulley and lever inde-
pendant of its wheels. To alter it into a single plough it only requires
to withdraw a bolt and turn the off body up into the frame which is 5
made to work on a strong hinge and lower it again to its place for a
double one.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said George Cubitt in the Great Seal Patent Office on
the 17th October 1873. .
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
CUBITT, of North Walsham, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of April, 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 George Cubitt, Her special licence
that I, the said George Cubitt, my executors, administrators, and assigns,
or such others as I, the said George Cubitt, my executors, administrators,
and 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 DOUBLE-FURROW PLOUGHS,'
upon the condition (amongst others) that I, the said George Cubitt, my
executors or administrators, by an instrument in writing under my,
or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the said Invention, 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 George Cubitt, do hereby declare
the nature of my said Invention, and in what manner the same is to

page_text: be performed, to be particularly described and ascertained in and by
the following statement and accompanying Drawings, that is to say:-
This Invention for the improvements of double-furrow ploughs are as
follows:
A
This Invention consists of a plough which can be used cither as a
single or double plough, and to accomplish which the off or moveable
body is made to work with a strong hinge, and when not required is
turned up out of the way, and it then can be used as a single plough
for the purpose of drawing out and making up work.
There is also a frame fitted and working on fulcrums or pins fixed to
the two beams which are straight and without any joints and quite whole,
and to which frame (or draught irons) is attached the fore carriage
and wheels for the purpose of locking, drawing, and turning at the
headlands or otherwise.
The plough travels on a hind wheel made to lock half way either.
to the right or left, and in connection with which is an upright shaft
fitted with a lever and handle for the purpose of guiding or steering the
plough.
The plough when at work rests firmly on two eccentrics which are
made or fixed on a transverse bolt through the said frame, and on the
said rod is a lever, pin, and chain, and made to regulate the depth of
ploughing by means of a regulating plate fixed on the frame.
The pulley for raising the plough is fixed in a stand attached to the
frame outside the beams, and which also answers the purpose of a stand
for driving reins.
The plough is lifted out of its work by means of a chain over and
under a pulley independant of its wheels, which chain is attached to a
lever fitted on the tail of the plough.
And in order to fully explain this my said Invention, I now proceed
to describe the means by which it is carried out into practical effect,
reference being had to the Drawings accompanying these Presents and
to the letters of reference marked thereon respectively, as follows:-
Fig. 1 is a view of the plough when arranged for use as a double
plough.
Fig. 2 is a view of the plough when raised out of wear