Improvements in Horse, Hoes, Grubbers, or, Cultivators.
Year: 1891

page_text: Date of Application, 5th Nov., 1891
Complete Specification Left, 27th July, 1892-Accepted; 3rd Sept., 1892
PROVISIONAL SPECIFICATION.
Improvements in Horse, Hoes, Grubbers, or, Cultivators.
I, THOMAS HUNTER of Maybole in the County of Ayr, Agricultural Implement
Maker, do hereby declare the nature of this invention to be as follows:-
This invention, which relates to horse hoes, grubbers or cultivators, is a further
development of, the invention for which Letters Patent of the United Kingdom
No. 6532 of the year 1890 have been granted to me and it has for its object referring
to the drawings annexed to the final Specification filed under the said Patent to
provide means whereby the width between the hoes, tynes or other cultivating
tools B can be regulated as desired. To that end there is carried by the central bar
of the machine which supports. the guiding handles, the fore wheel and the rear
cultivating tool B' a length of screw the rear end of which is furnished with a
crank handle, wheel or equivalent means of turning, the screw-being-supported in
fixed nuts or straps. Between these nuts or straps there is threaded on to the
screw a nut which has two levers or struts jointed to it, the said levers or struts
being also connected to the rear ends of the angle iron bare constituting the
framing A in such wise that by turning the screw the threaded nut is moved
forwards or rearwards upon it so spreading or contracting the rear ends of the
frame A and widening or diminishing the distance between the cultivating tools B.
Dated this Fourth day of November 1891.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.
COMPLETE SPECIFICATION.
Improvements in Horse Hoes, Grubbers, or Cultivators.
1, THOMAS HUNTER of Maybole in the County of Ayr, Agricultural Implement
Maker, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by
the following statement :-
This invention which relates to horse hoes, grubbers or cultivators and is
illustrated under one modification in side elevation by Figure 1 and in plan by Figure 2
of the accompanying drawings, is a further development of the invention for which
Letters Patent of the United Kingdom No. 6532 of the year 1890 have been
granted to me and it has for its object referring to the drawings annexed to the final
Specification filed under the said Patent to provide means whereby the width
between the hoes, tynes or other cultivating tools B can be regulated as desired.
To that end there is carried by the central bar C of the machine which supports
the guiding handles D, the fore wheel E and the rear cultivating tool B¹ a rod or
bar F screwed throughout a portion of its length and having at its rear end a crank
handle or wheel or equivalent means of turning it, the rod being supported in
fixed nuts or eyes y bolted to the central bar C. Between these nuts or eyes there
is threaded on to the screw a nut z which has two levers or struts w jointed to it,
the said levers or struts being also connected to the rear ends of the angle iron bars
constituting the framing A in such wise that by turning the screw the threaded nut
is moved forwards or rearwards upon it so spreading or contracting the rear ends of
the frame A and widening or diminishing the distance between the cultivating
tools B. The movement of the nut is guided by a jaw formed on the bottom of it.
and which embraces the central bar C.

page_text: As illustrated in side elevation by Figure 3 and in plan by Figure 4 the rod F
instead of having a screw thread formed upon it and being turned to widen or
contract the frame A may have a series of teeth u made or secured on it and be
drawn or pushed, backward or forward to adjust the frame the teeth when the
adjustment is given being geared with the teeth of a rack » secured to the central
bar C, to maintain the frame in position.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what 1
claim is :-
:-
1. In horse hoes, grubbers or cultivators the means hereinbefore described with
reference to the accompanying drawings for adjusting the width between the hoes,
tynes or other cultivating tools.
L
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow, Agents.