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GB412022

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Publication
_________________________________________________________________
Number GB412022A
i»?
Title
_________________________________________________________________
EN Title Improvements in or relating to land trenching appliances for
drainage purposes
Abstract
_________________________________________________________________
412,022. Drain - - making apparatus. BARRETT, E. 0., 41, Swindon Road,
Wroughton, Wiltshire. May 1, 1933, No. 12678. [Class 6 (i).] An
appliance for making drainage trenches comprises a frame a adapted to
be clipped or bolted to the axle or axle case of a vehicle, and a
swing frame d pivoted on the main frame, the swing frame carrying an
operating lever e, a trenching wheel g and a starting tine f which, on
engaging the ground, assists in drawing the trenching wheel into the
ground. The trenching wheel comprises a disc h clamped between two
cupped members. Cross bars m limit rearward movement of the swing
frame d and the frame may be held in raised position by a catch.
Description
_________________________________________________________________
i _ '1;X i
PATENT SPECIFICATION
Application Date: May 1, 1933 No 12,678/33.
Complete Left: March 22, 1934.
412,O 22 bin Rl W-5151 1 percent Complete Accepted: June 21; 1934.
PROVISIONAL SPECIFICATION.
Improvements
Purposes.
in or relating to Land Trenching Appliances for Drainage
I, ERIC Ow EN BA Rur ETT, of 41, Swin-don Road, Wroughton, in the
County of Wiltshire, a British Subject, do hereby declare the nature
of this invention to be as S follows This invention relates to land
trenching appliances for drainage purposes.
Land drainage appliances made in accordance with this invention
comprise 1 o a frame, referred to hereafter as the main frame, which
is adapted to be clipped or bolted-to the axle or axle case of a
vehicle, and a swing frame pivotted on the main frame On the swing
frame are mounted M 5 a trench wheel, a starting tine and an operating
lever The trenching wheel comprises a cutting disc clamped between two
cup-shaped members.
Referring to the drawings filed herewith:
Fig 1 is a front elevation; Fig 2 is a side sectional-elevation of one
form of trenching appliance shown in the operative position, made in
accordance with this invention Fig 3 is a similar view to Fig 2
showing the wheel in the raised position and in a halfway position in
dotted-lines.
The main frame a of steel is provided with holes b, b by which it can
be clamped to the axle case of a farm wagon.
Pivoted to the main frame at c is a swing frame - On the swing frame
cl is mounted an operating lever a, a starting tine f and a trenchiig
wheel g provided with a cutting disc h The cutting disc is is clamped
between the cup-shaped parts of the trenching wheel g by a bolt and
nuts j and X, k The bolt j forms the shaft of the trenching wheel g
and is mounted in bearings on the swing frame cf The swing frame can
be moved forwardly and upwardlly on its pivot c, but is restrained
from moving rearwardly by the cross members mn, in A catch is provided
for holding the swing frame in its raised position.
Assuming that the appliance has been secured to the axle case of a
farm wagon or other vehicle drawn by horse or tractor, and that the
swing frame d is in its raised position with the trenching wheel g and
starting tine / raised ab;ove the ground, and that it is desired to
cut a drainage trench, the lever e is released allowing the swing
frame d to swing downwards, the tine / thereby coming into contact
with the ground; the tine piercing the ground acts as resistance,
drawing the trenching wheel g into the ground.
When the trenching wheel has been forced part way into the ground, the
tine will -lose some of its effectiveness, but by that time the
trenching wheel will be deep enough into the ground to offer
sufficient resistance to bring the swing frame into its vertical or
working position The trench made by the trenching wheel allows the
tine to travel in its path without the tine touching the ground To
raise the lever it is only necessary to back the vehicle a few inches
when the lever can be raised lifting the trenching wheel above the
ground The trenching wheel can be pushed into its working, position by
the aid of the lever.
With an appliance made in accordance with this invention the cutting'
disc cuts through tough grass (or bull-polls) on the surface, or
through roots at the bottom of the trench, and allows the V-shaped
trenching wheel to open the ground and so form an efficient trench.
Dated this 26th day of April, 1933.
MEW Bl URN ELLIS and Co, and 72, Chancery Lane, London, W C 2, And at
46, Queen Square, Bristol 1, Chartered Patent Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Land Trenching Appliances for Drainage
j Purposes i I, Enic Ow EN BARRETT, of 41, Swindon shire, a British
Subject, do hereby declare Road, Wroughton, in the County of Wilt the
nature of this invention and in what lPri"e ll -l P Dc e 4 S 6 d i i
1;j 1, ' 1 i z _ 1 G 7 ' 1 Z 1 j L 412,022 manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement
This invention
purposes.
relates
to
land
trenching
appliances for drainage
Land drainage appliances made in accordance with this invention
comprise a frame, referred to hereafter as the main frame, which is
adapted to be clipped or L bolted to the axle or axle case of a
vehicle, and a swing frame pivotted on the main frame On the swing
frame are mounted a trench wheel, a starting tine and an operating
lever The trenching wheel comprises a cutting disc clamped between two
cup-shaped members.
Referring to the drawings filed with the Provisional Specification:
Fig 1 is a front elevation; Fig 2 is a side sectional elevation of one
form of trenching appliance shown in the operative position, made in
accordance with this invention.
Fig 3 is a similar view to Fig 2 showing the wheel in the raised
position and in a halfway position in dotted lines.
The main frame a of steel is provided with holes b, b by which it can
be clamped to the axle case of a farm wagon.
Pivoted to the main frame at c is a swlgi l, frame d On the swing
frame ci is mounted an operating lever e, a starting tine f and a
trenching wheel g provided with a cutting disc h The cutting disc h is
clamped between the cup-shaped parts of the trenching wheel g by a
bolt and nuts j and k, k The bolt j forms the shaft of the trenching
wheel g, and is mounted in bearings on the swing frame d The swing
frame can be moved forwardly and upwardly on its pivot c, but is
restrained from moving rearwardly by the cross members 7 nm , mi A
catch is provided for holding the swing frame in its raised position.
Assuming that the appliance has been secured to the axle case of a
farm wagon or other vehicle drawn by horse or tractor, or secured to a
tractor, and that the swing frame d is in its raised position with the
trenching wheel g and starting tine / raised above the ground, and
that it is desired to cut a drainage trench, the lever e is released
allowing the swing 5. frame cd to swing downwards, the tine '. thereby
coming into contact with the ground, the tine piercing the ground acts
as resistance, drawing the trenching wheel g into the ground When the
trenching 60wheel has been forced part way into the ground, the tine
will lose some of its effectiveness, but by that time the trenching
wheel will be deep enough into the ground to offer sufficient
resistance to 65 bring the swing frame into its vertical or workino'
position The trench made by the trenemahing wheel allows the tine to
travel in its path without tile tine touching the ground To raise the
lever it is 70 only necessary to back the vehicle a few inches when
the lever can be raised lifting the trenching wheel above the ground.
The trenching wheel can be pushed into its working position by the aid
of the 75 lever.
With an appliance made in accordance with this invention the cutting
disc cuts through tough grass (or bull-polls) on the surface, or
through roots at the bottom 80 of the trench, and allows the V-shaped
trenching wheel to open the ground and so form an efficient trench.
Having now particularly described and ascertained the nature of my
said inveul 85 tion and in what manner the same is to be performed, I
declare that what I
Claims
_________________________________________________________________
claim is:1 A land trenching appliance comprising a main frame which is adapted
to be 90 clipped or bolted to the axle or axle case of a vehicle and a
swing frame pivotted to the main frame, a starting tines a trenching
wheel and an operating lever being mounted on the swing frame 95
2 The trenching appliance constructed substantially as described with
reference to the drawings. Dated this 22nd day of March, 1934. MEWBT 1
Th N, ALLIS and Co, 70-72, Chancery Lane, London, W C 2, Chartered
Patent Agents. Rodhill: Printed for His Majesty's Stationery Office,
by Love and Malcomson, Ltd -1934.
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