IMPROVEMENTS IN THE CONSTRuction of MACHINERY FOR THE CULTIVATION OF LAND BY STEAM POWER
Year: 1874

page_text: LETTERS PATENT to David Greig and Richard Holgate Shaw, both
of the Steam Plough Works, Leeds, in the County of York, for
the Invention of “IMPROVEMENTS IN THE CONSTRuction of MACHINERY FOR
THE CULTIVATION OF LAND BY STEAM POWER."
Sealed the 23rd October 1874, and dated the 9th May 1874.
PROVISIONAL SPECIFICATION left by the said David Greig and
Richard Holgate Shaw at the Office of the Commissioners of
Patents, with their Petition, on the 9th May 1874..
Wė, DAVID GREIG and RICHARD HOLGATE SHAW, both of the Steam
Plough Works, Leeds, in the County of York, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN THE CONSTRUCTION
OF MACHINERY FOR THE CULTIVATION OF LAND BY STEAM POWER," to be as
follows:-

page_text: .
wheels, which by the motion of the ploughing rope are caused to wind
or unwind themselves slowly along the headland as the work proceeds,
and to obtain the required slow rate of travel of the anchoring pulley
along the headland, as compared with the travel of the ploughing rope
by which the anchoring pulley is caused to move, reducing gear mounted
on two, three, or more axles or centres has hitherto been employed.
Our improvement consists in so constructing the anchoring pulleys
that only one centre or axle is required, the headland rope drum and all
intermediate or reducing gear being mounted on the same centre or axle
as the anchoring pulley, and receiving the required motion therefrom,
by which greater steadiness of motion and simplicity of construction is
obtained.
We also use the headland rope as a means of stopping the anchoring
pulley when it has travelled the required distance; thus no attendant or
anchorman is required, and when the anchor has arrived at the end of
the work we lift it out of the ground, ready for travelling on the road
by means of the ploughing rope actuated by the engine, and coupled to
the end of a lever attached to the axles of the anchor carriage.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Greig and Richard Holgate Shaw in the 20
Great Seal Patent Office on the 9th November 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, DAVID
GREIG and RICHARD HOLGATE SHAW, both of the Steam Plough Works,
Leeds, in the County of York, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 25
Letters Patent, bearing date the Ninth day of May, in the year
of our Lord One thousand eight hundred and seventy-four, in the
thirty-seventh year of Her reign, did, for Herself, Her heirs and
successors, give and grant unto us, the said David Greig and Richard
Holgate Shaw, Her special license that we, the said David Greig 30
and Richard Holgate Shaw, our executors, administrators, and assigns,

page_text: or such others as we, the said David Greig and Richard Holgate
Shaw, our executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and at all times there-
after 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 In-
vention for "IMPROVEMENTS IN THE CONSTRUCTION OF MACHINERY FOR THE
CULTIVATION OF LAND BY STEAM POWER," upon the condition (amongst
others) that we, the said David Greig and Richard Holgate Shaw,
our executors or administrators, by an instrument in writing under our,
or their hands and seals, or under the hand and seal of one of us or
them, 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 Scal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said David Greig, on behalf of myself and
the said Richard Holgate Shaw, do hereby declare the nature of the said
Invention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following statement
thereof, that is to say :-
When cultivating land by steam power we sometimes employ anchoring
pulleys mounted on a frame or frames and fitted with discs or cutting
wheels, which by the motion of the ploughing rope are caused to wind
or unwind themselves slowly along the headland as the work proceeds,
and to obtain the required slow rate of travel of the anchoring pulley
along the headland, as compared with the travel of the ploughing rope
by which the anchoring pulley is caused to move, reducing gear mounted
on two, three, or more axles or centres has hitherto been employed.
Our improvement consists in so constructing the anchoring pulleys
that only one centre or axle is required, the headland rope drum and all
intermediate or reducing gear being mounted on the same centre or axle
as the anchoring pulley, and receiving the required motion therefrom,
by which greater steadiness of motion and simplicity of construction is
obtained.
We also use the headland rope as a means of stonning the anchorinė

page_text: Figure 1 is a sectional side elevation, Figure 2 is a plan shewing our
improvements in anchor carriages. The letters on each view refer to the
same parts.
A, A, is the anchor frame. B, B, is the main or centre casting, which
is accurately bored inside and turned outside; this casting carries the
whole of the working gear as shewn. C is the main rope, sheave, or
pulley round which the ploughing ropè works, the friction of the rope
on this pulley producing the power necessary for driving the winding
forward gear. D is the rope pulley spindle. E is a ratchet clutch for
driving the eccentric boss F. G is the winding forward drum, which is
driven by the eccentric wheel H gearing with an internal ring of teeth
upon it. J is a stop lever for controlling the motion of the winding
forward gear.
K is a lever for throwing out of gear the clutch E. The
throwing out gear is self-acting, the lever K being worked by a chain
coiled round a small barrel L as shewn. This barrel is caused to revolve
and wind up the chain by being driven by bevil gearing on the winding
forward drum. L' is a clutch lever, by which the clutch connecting the
barrel L with its axis can be released to start the winding forward gear.
M, M, are discs or revolving coulters for resisting the side strain brought
by the pull of the rope on the anchor carriage. N, N, N, N, are the
road wheels, and to which the discs are attached. O, O, is a box placed
on the opposite side to the working side, and is used to carry earth
weights, &c., to assist in keeping the anchor carriage down firm on the
headland during the process of working.

page_text: 2nd. The arrangement for stopping the forward motion of the anchoring
pulley, substantially as described.
In witness whereof, I, the said David Greig, have hereunto set my
hand and seal, this Fourth day of November, in the year of
our Lord One thousand eight hundred and seventy-four.
DAVID GREIG. (L.S.)