IMPROVEMENTS IN PLOUGHS
Year: 1840

page_text: 'HENSMAN'S SPECIFICATION.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HENSMAN, of Woburn, in the County of Bedford, Machinist, send greeting...;:
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing :date at:
Westminster, the Thirtieth day of December, in the fourth year of Her reign,
did, for Herself, Her. heirs and successors, give and grant unto me, the
said William Hensman, Her especial, licence, full power, sole privilege and
authority, that I, the said William Hensman, my exors, admors, and assigns,
or such others as I, the said William Hensman, my exors, admors, or assigns,
should at any time agree with, and no others, from time to time and at all
times during the term of years therein expressed, should and lawfully might
make, use, exercise, and vend, within England,. Wales, and the Town of
Berwick-upon-Tweed; my Invention of "IMPROVEMENTS IN PLOUGHS;' "in which
said Letters Patent is contained a proviso, that I, the said William Hensman,.
should cause a particular description of the nature of my said Invention,
and in what manner the same is to be performed, to be inrolled in Her said
Majesty's High Court of Chancery within six calendar months next and
immediately after the date of the said in part, recited Letters Patent,. as .in
and by the same, reference being thereunto had, will more fully and at large
annear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Hensman, do hereby declare that the nature of my Invention,
and the manner in which the same is to be performed, are fully described
and ascertained in and by the following statement thereof, reference being
had to the Drawing hereunto annexed, and to the figures and letters marked
thereon (that is to say):-
My Invention relates to a mode of applying coulters of ploughs, in order
to obtain more ready means of adjustment in respect to the beams of ploughs.
Figure 1 represents part of the beam of a plough, having a coulter applied
thereto according to my Invention; Figure 2 shews the portion of the beam
separately. a represents part of the beam of a plough; 6 is a projection
formed or affixed on the beam, and becomes the fulcrum or surface on which
the coulter moves in adjusting the point of the coulter to or from the land
side of a furrow; c is the coulter; and e is a plate which partly embraces
the beam.a. The coulter is secured by means of eye bolts d, d, which passing
through the plate c, the nuts f are screwed on the eye bolts d; and it will
readily be understood that according as the-screw nut on the upper or lower
eye bolt d is more or less tight in respect to the other, so will be the position
of the coulter, for the coulter will move on the projection 6 as a fulcrum, and
the coulter will be tightly held to the beam by means of the plate e and the
bolts d, and by having the projection 6 for some length on the surface of the
beam, as shewn, the coulter can be set more forward or backward than is
shewn in the Drawing.
Figure 3 shews another arrangement of means of applying a coulter. In
this arrangement, the projection 6 in place of being on the beam is on a
plate g, which is applied on one side of a beam of a plough. The plate g is
shewn separately at Figure 4. d, d, are the eye bolts for holding and adjusting
the coulter on the plate 9 and the lower bolt d; in addition to holding and
adjusting the coulter on the plate g, the stem of the bolt passes through the
beam of the plough, and thus allows the plate g to move thereon as on an
axis.. h is an adjusting screw, which is attached by a pin joint to the plate g,
such screw passing through a projection i, formed or affixed on the beam a;
and j is a screw nut, by means of which the position of the point of the coulter
may be set forward or backward; and it will be understood that by this
arrangement the coulter can be adjusted in two directions, that is, to and from
the land side of the furrow, by means of the eye bolts and screws d, d, the
coulter moving on the projection b, and to and from the fore part of the
plough, by means of the plate 9 and the screw and nut h, j.

page_text: Having thus described the nature of my Invention, and the manner in
which the same is to be performed, I would have it understood that what I
claim is,
First, the mode of adjusting coulters of ploughs by the combined means of
projection 6 and screws d, d, as herein described.
Secondly, I claim the mode of adjusting coulters by means of a plate g, and
adjusting and holding screws d, d, and h, j, when in combination with the parts
b, d, d, as herein described..
In witness whereof, I, the said William Hensman, have hereunto set
iny hand and seal, this Thirtieth day of June, in the year of our
Lord One thousand eight hundred and forty-one.
WILLIAM (L.S.) HENSMAN.
AND BE IT REMEMBERED, that on the Thirtieth day of June, in the
year of our Lord 1841, the aforesaid William Hensman came before our said
Lady the Queen in Her Chancery, and acknowledged the Specification afore-
said, and all and every thing therein contained and specified, in form above
written. And also the Specification aforesaid was stamped according to the
tenor of the Statute made for that purpose.
Inrolled the Thirtieth day of June, in the year of our Lord. One thousand
eight hundred and forty-one.