IMPROVEMENTS IN ADJUSTING HORS
Year: 1875

page_text: LETTERS PATENT to Frederick Thomas Turner, of the Firm of Murton
and Turner, of Guiltcross Ironworks, Kenninghall, in the County of
Norfolk, Agricultural Implement Manufacturer, for the Invention
Sealed the 19th May 1876, and dated the 6th December 1875.
PROVISIONAL SPECIFICATION left by the said Frederick Thomas
Turner at the Office of the Commissioners of Patents, with his
Petition, on the 6th December 1875.
I, FREDERICK THOMAS TURNER, of the Firm of Murton and Turner,
of Guiltcross Ironworks, Kenninghall, in the County of Norfolk, Agri-
cultural Implement Manufacturer, do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN ADJUSTING HORS," to be as follows,
that is to say :-
The Invention consists in improvements in the mechanism for
adjusting or regulating the depth of the blades of horse or steam hoes
while at work in a much more easy manner than at present, and without

page_text: it being necessary for the attendant to leave his position at the steering
apparatus.
In carrying out my Invention the hoe blades are fixed to levers
suspended from a beam as at present. To the frame of the hoe and
near each end of the iron bar from which the beam is suspended, I fix a
vertically placed rack, and into each of these racks gears a pinion, such
pinions being fixed on the said iron bar. In the centre of the bar I fix
a worm wheel gearing into and driven by a worm fixed in a bearing
attached loosely to the bar, so as always to be in gear with the worm
wheel whatever be the position of the bar.
The worm is driven by a hand wheel placed in the centre of the
steering apparatus. By this arrangement it will be understood that by
turning the said hand wheel the hoe blades will be either raised or
lowered according to the direction in which the wheel is turned.
Instead of the worm and worm wheel being placed as herein-before
described they may be placed at the end or other suitable position on
the bar.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Frederick Thomas Turner in the Great Seal
Patent Office on the 2nd June 1876.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, FREDERICK
THOMAS TURNER, of the Firm of Murton and Turner, of Guiltcross
Ironworks, Kenninghall, in the County of Norfolk, Agricultural
Implement Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixth day of December, in the year
of our Lord One thousand eight hundred and seventy-five, in the
thirty-ninth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said Frederick Thomas Turner,
Her special licence that I, the said Frederick Thomas Turner, my
executors, administrators and assigns, or such others as I, the said
Frederick Thomas Turner, 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

page_text: 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 ADJUSTING HOES," upon the
condition (amongst others) that I, the said Frederick Thomas Turner,
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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Frederick Thomas Turner, 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 Drawing
hereto annexed and to the figures and letters marked thereon, that is
to say:-
This Invention consists in improvements in the mechanism for
adjusting or regulating the depth of the blades of horse or steam hoes
while at work in a much more easy manner than at present, and without
it being necessary for the attendant to leave his position at the steering
apparatus.
In carrying out my Invention the hoe blades are fixed to levers
suspended from a beam as at present. To the frame of the hoe and
near each end of the horizontal iron spindle or bar from which the beam
is suspended, I fix a vertically placed rack, and into each of these racks
gears a pinion, such pinions being fixed on the said horizontal spindle or
bar. In the centre of the horizontal spindle or bar I fix a worm wheel
gearing into and driven by a worm fixed in a hanging crotch bearing
attached loosely to the horizontal spindle or bar so as always to be in
gear with the worm wheel whatever the position of the horizontal spindle
or bar.
The worm is driven by a hand wheel placed in the centre of the
steering apparatus. By this arrangement it will be understood that by
turning the said hand wheel the hoe blades will be either raised or
lowered according to the direction in which the wheel is turned.
Instead of the worm and worm wheel being placed as herein-before

page_text: described they may be placed at the end or other suitable position on
the bar.
But to make my Invention better understood I will now proceed to
describe the same by reference to the accompanying Drawing, in which
Figure 1 is a partly side elevation; and Figure 2, a partly back elevation
of a horse hoe constructed with my improvements drawn to a scale of
about one-eighth of an inch to the foot; and Figures 3, 4, and 5, full
size details of some of the parts.
Similar letters of reference in all the Figures represent similar parts.
a shews one of the hoe blades fixed to the lever b suspended from the
beam c as at present; d, d, are the vertical racks fixed to the frame e of
the horse hoe; ƒ,ƒ, is the horizontal iron spindle or bar from which the
beam c is suspended; g, g, are the pinions fixed on the spindle or bar f,
and gearing into the racks d, d; h is the worm wheel in the centre of
the spindle or bar f; i is the worm fixed in the hanging crotch bearing j
working loosely on the spindle or bar f. This crotch bearing with the
worm and worm wheel are shewn in full size detail at Figures 3 and 4;
k is the spindle of the worm i; and is the hand wheel on the outer
end of the spindle for driving the worm; m, m, are two grooved
keeps fixed to the frame e for receiving the ends of the spindle or bar f
so as to keep the pinions g, g, in gear with their racks; d', d, are two
crotch roller hangers for suspending the beam, levers, hoes, and steering
mechanism from the spindle or bar f. One of these crotch roller hangers
is shewn in full size detail at Figure 5. By working the handles o from
right to left or vice versa, the hangers d', d³, will be caused by means of
their rollers p, p, to run on the bar or spindle, and thus effect the
steering of the hoe blades.
The operation for adjusting or regulating the depth of the hoeing is
as follows:-The attendant by turning the hand wheel / on the end of
the worm spindle k causes the worm i to actuate the worm wheel h,
thereby turning the spindle or bar f, the pinions g, g, of which gearing
with the racks d, d, cause the spindle or bar f to be raised or lowered
according to the direction in which the hand wheel is turned; the hoe
blades suspended to the spindle f, as herein-before described, are thereby
caused to pitch either fleeter or deeper in the land to be hoed, the
operation being effected with great ease and facility by the attendant
without it being necessary for him to leave his position at the steering
apparatus.

page_text: Having thus described the nature of my said Invention and the best
means with which I am acquainted for carrying the same into effect, I
wish it to be understood that I do not confine myself to the precise
details herein laid down and shewn in the accompanying Drawing; but
what I do claim and wish to be protected by the herein-before in part
recited Letters Patent is,-
Firstly. The peculiar arrangement and construction of the mechanism
for adjusting hoe blades so as to cause them to pitch fleeter or deeper in
the land, substantially as herein-before described and represented in the
accompanying Drawing.
Secondly. The peculiar arrangement for keeping the worm in gear
with the worm wheel whatever be the height of the horizontal spindle
or bar supporting the hoe blades, as herein-before described and
represented in the accompanying Drawing.
In witness whereof, I, the said Frederick Thomas Turner, have
hereto set my hand and seal, this Thirtieth day of May, in the
year of our Lord One thousand eight hundred and seventy-
six.