IMPROVEMENTS IN MACHINERY OR APPARATUS FOR SCARIFYING OR CLEANING WEEDS FROM TURNIP AND OTHER DRILLS to be as follows:
Year: 1884

page_text: I, THOMAS HUNTER of Maybole in the County of Ayr, Agricultural implement
naker, do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR SCARIFYING OR CLEANING WEEDS FROM TURNIP
AND OTHER DRILLS to be as follows:-
"
This Invention has for its object improvements in that class of machines
wherein knives scarifiers or scrapers are employed to remove weeds off the sides of
young turnip and other drills and the Invention more particularly relates to
improved means for carrying or suspending the rear or tail ends of the knives or
scarifiers, and for supporting the said knives or scarifiers in a position above the
level of the drills in moving the machine from place to place and at other desired
times.
The machine is carried on bevelled or angled rollers as usual which rotate
loosely on a shaft or axle to the ends of which two vertical standards are secured
these standards carrying at their upper ends a bar or beam extending parallel with
the axle.
On the axle is also supported loosely a frame whereon the forward ends of the
knives or scarifiers are adjustably carried by studs and clamps or their equivalents,
To the said frame one end of a hand lever extending rearwards is secured and at a
position on the lever near the rear or tail ends of the knives, scarifiers, or scrapers
a transverse bar is attached. Through the ends of the said bar, pins or studs are
passed the said pins or studs also passing through slots in the upper ends of
suspending rods connected at their lower ends to the knives or scarifiers.
The vertical slots in the suspending rods enable the position of the knives or
scarifiers to be adjusted vertically and to render the width between the rear or tail
ends of the knives or scarifiers also adjustable, the holes in the transverse bar
through which the pins or studs pass are or may be slotted the knives or scarifiers
being held in the desired position by nuts or their equivalents placed on the pins.
The hand lever and with it the knives or scarifiers is at its for ward end
suspended from a chain hooked to the beam parallel with the axle and from
the said beam another rod or bar extending to the rear of the machine is also
suspended.

page_text: In the said rod or bar (which passes through an eye or guide made or fixed on
the side of the hand lever) a hook is formed into which, when the rear or tail ends
of the knives or scarifiers are raised by the hand lever, a pin, projecting sideways
from the said lever, enters, the hook then acting as a rest or support both for the
knives and for the lever. By then shortening the chain connected to the forward
end of the lever the knives are held in a position above the level of the drills.
Behind each of the knives or scarifiers a harrow is or may be placed and
connected by a chain or otherwise to the lifting bars of the knives.

page_text: COMPLETE
SPECIFICATION.
I, THOMAS HUNTER of Maybole in the County of Ayr, Agricultural Implement
Maker, do hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY OR APPARATUS FOR SCARIFYING OR CLEANING WEEDS FROM TURNIP
"
AND OTHER DRILLS and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
My Invention has for its object improvements. in that class of machines wherein,
knives, scarifiers or scrapers are employed to remove weeds from off the sides of
drills containing young turnip and other crops and as seen in side elevation at
figure 1, and in plan at figure 2, of the drawings annexed hereto, the said invention
more particularly relates to improved means for carrying or suspending the rear or
tail ends of the knives or scarifiers and for supporting the said knives or scarifiers
in a position above the level of the drills in moving the machine from place to
place and at other desired times.
The machine is carried on rollers a, having the usual curved or bevelled
peripheries the said rollers rotating loosely on a shaft or axle b, each pair of them
being held at proper distances apart by a sleeve c, placed on the shaft between
their inner faces, as seen at figure .2, In addition to the said sleeves, washers or
loose metal collars may be placed on the shaft b, between the rollers and by adding
to or subtracting from the number of the said washers or by providing sleeves c, of
different lengths the minimum distance between the inner faces of the rollers a,
may be regulated as desired.
To the ends of the shaft or axle b, two vertical standards or bars d, are secured
these standards carrying at their upper ends a beam or frame e, extending parallel
with the axle and to which the shafts or trams f, and other parts of the apparatus
are connected.
On the axle b, are also supported loosely, frames g, whereon the forward ends of
the knives, scarifiers or scrapers h, are adjustably carried by studs i, and clamps 1,
the studs passing through the jaws of the clamps which latter embrace the frames g,
and are drawn rearwards, so as to jamb the studs i, against the frame, by pinching
screws k, or their equivalents.
A frame g, is provided for each pair of scarifiers of which any desired number of
pairs may be employed in the machine and to each of the said frames one end of
a bent hand lever L, extending rearwards is secured. To the hand levers, bars m,
placed parallel with the shaft b, are rigidly connected and as seen at n, figure 2,
a slot is made in each end of the said bars. Pins or studs o, pass through these
slots and through slots made in the upper ends of suspending rods p, connected at
their lower extremities to the tail ends of the knives or scarifiers h.
The slots in the suspending rods p, euable the position of the tail ends of the
knives or scarifiers h, to be regulated vertically whilst the slots n, in the bars m,
and the clamps j, on the frames g, render, the width between each pair of knives or
scarifiers also adjustable. It will also be seen that the slotted bar m, enables the
distance between the tail ends of the knives h, to be adjusted without shifting the
clamps j, the studs i, in that case acting as centres on which the knives turn,

page_text: Each hand lever 1, and with it the frame g, and knives or scarifiers h, is when
the machine is in operation, suspended from a chain 8, hooked to the beam or
frame c, as indicated. From the said beam or frame other rods or bars t, extending
to the rear of the machine are also suspended.
One such rod or bar is provided in conjunction with each hand lever l, and
passed through an eye u, made or fixed on the said lever as indicated at figure 2,
As seen at figure 1, a hooked or recessed part v, is formed in each bar t, which
part catches or engages on the front of the eye t, when the rear or tail ends of the
knives h, are raised by their hand levers ; the hook or recess, v, then constituting
a rest or support for the knives so as to carry them above the level of the drills.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declaro that what
I claim is
'i
First In a turnip or other drill scarifying machine the bar t, with book or
recess v, operating substantially as and for the purpose set forth.
Second The knife adjusting apparatus consisting of the slotted cross bar m,
and vertical slotted links p, in a machine for the purpose set forth.
Third In a turnip or other drill scarifying machine the combination of
apparatus consisting of the hand lever 1, slotted cross bar m, vertical slotted
links p, and hooked or recessed rod or bar t, as and for the purposes set forth.
Dated thia Sixth day of February 1985