Improvements in Swivel-head Horse Ploughs.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Swivel-head Horse Ploughs.
I, WALTER BAVERSTOCK, of Coomsbury Farm, Newbury, Berks, Farmer, do
hereby declare the nature of this invention to be as folows;
-
In swivel-head horse ploughs in which the depth of furrow is regulated by
regulating the height of the land and furrow wheels by means of a screw nut
screwing on a threaded stem projecting up from the wheel axle, it is necessary
to stop driving the ploughing every time it is desired to alter the depth of fur-
row, in order that the ploughman may work the said screw nut on the stem.
My present invention has for its object to enable the ploughman to effect such
adjustment without requiring to stop the plough or leave his position between
the handles.
For this purpose I fix upon the usual screw nut a sleeve having a worm wheel
formed on it, in gear with which is a worm carried by a bracket which is secured
on the swivel head of the plough by suitable clamps. The spindle of the worm
is connected by a socket joint to a rod which extends back to the handle of the
plough on which it is supported and where it is provided with a hand wheel
or crank handle. Thus, if it is desired to alter the depth of furrow during
ploughing, the ploughman, without altering his position, only requires to turn
the said rod, so as to rotate the screw nut by the worm gear in one direction or
the other. The said rod is provided with a universal joint where it is con-
nected to the worm spindle, for enabling the plough to be thrown over at lands-
end for turning.
Dated this Oth day of March 1898
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Swivel-head Horse Ploughs.
I, WALTER BAVERSTOCK, of Coomsbury Farm, Newbury, Berks, Farmer, 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 follow-
ing statement:-
In swivel head horse ploughs in which the depth of the furrow is regulated by
regulating the height of the land and furrow wheels by means of a screw nut
screwing on a threaded stem projecting up from the wheel axle, it is necessary
to stop driving the ploughing every time it is desired to alter the depth of the fur-
row in order that the ploughman may work the said screw nut on the stem.
[Price 8d.1

page_text: My present invention has for its object to enable the ploughman to effect such
adjustment without requiring to stop the plough or leave his position between
the handles. For this purpose I fix upon the usual screw nut a sleeve having
a worm wheel formed on it or if preferable a toothed wheel in gear with which
is either a worm or another toothed wheel, the spindle of which is carried by
a bracket affixed to the swivel head either as a part of the same or held in posi-
tion by suitable clamps. The screw nut may also be seated in a cup joint on
the swivel head and hanging through the head or projecting above it, sufficient
lateral movement being allowed for the lower end of the nut to swing with the
screwed stem.
The spindle of the worm wheel is connected by a socket joint to a rod which
extends back to the handles of the plough on which it is supported and where
it is provided with a hand wheel or crank handle. Thus if it is desired to alter
the depths of the furrow during ploughing, the ploughman without altering his
position only requires to turn the said rod, so as to rotate the screw nut by the
worm or toothed gear in one direction or the other. The said rod is provided
with a universal joint where it is connected with the spindle for the gear for
enabling the plough to be thrown over at lands end for turning:
In carrying out my invention and with reference to the accompanying draw-
ings, Figure I is a side elevation of a swivel head plough, A being the swivel
head affixed to the beam B, the screwed stem C being carried by the wheels and
carriage, D is the rod, having on it a hand wheel situate between the handles E
and connected by the gearing to the screw nut so that the ploughman can by
rotating the rod D) cause the screw nut to revolve and raise or lower the head
of the plough and so increase or decrease the depth of the furrow.
Figures II and III show the details of the swivel head A with the worm G
and worm wheel H to revolve the screw nut F on to the screwed stem I, the
bracket or carriage K being allowed to slide on the flat surface of the swivel
head A according to the position of the screwed stem. D is the rod reaching to
the handles, and L L the clamps to hold the sliding bracket K on to the swivel
head A, Figure III showing an end view of same, Figure IV shows the applica-
tion of bevel toothed gearing in order to revolve the screw nut F and m m being
the wheels all affixed to the swivel head A, the screw nut F being in a cup joint
at d to allow of the lateral movement of the screwed stem I in the swivel head.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what
I claim is:-
I. The use, employment, and combination with what is commonly known as
a swivel head plough with a single screwed stem and screw nut whereby the same
is made to revolve by a rod from the handles of the plough substantially as
described in the accompanying drawings.
II. The use, employment, and combination of a swivel head plough with a
sliding bracket carrying a worm and wheel or toothed gearing and actuated from
the handles of the plough and affixed to the swivel head substantially as described
in the accompanying drawings.
III. The use, employment and combination of a swivel head plough having the
screw nut actuated by worm or toothed gearing and by a rod from the handles,
and seated in a cup joint substantially as described in the accompanying drawings.
Dated this 9th day of December 1898.
WALTER BAVERSTOCK.