Improvements relating to the Scarifying Mechanism of Road Rollers and other Machines.
Year: 1896

page_text: Improvements relating to the Scarifying Mechanism of Road Rollers
and other Machines.
I, THOMAS CLIFFORD AVELING of 41, Ryland Road, Edgbaston, Birmingham, in
the County of Warwick, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to scarifying mechanism, and has been distinctly
considered in connection with road repairing rollers.
Scarifying mechanism consists generally of a series of pick ends, jointedly
connected to a trailing framework, capable of being attached to the rear of a steam
road roller; the same being fitted with mechanism for putting into or out of
action the said pick ends. The attachment is used for cutting up the surface of the
road to be repaired, and it has been found that the road metal displaced by the
pick ends instead of trailing behind the same is thrown sideways on to the un-
touched road surface; necessitating a scavenger following the roller to sweep or
rake the said road metal from the untouched surface on to the cut-up one.
The object of my invention is to obviate this by providing the scarifying
mechanism with a metal guard or skirting-board to embrace the pick ends, and
trail within a suitable distance from the ground, and prevent the road metal
produced from leaving the trail of the scarifier.
The said guard I preferably construct from metal, suitably strengthened, and
attach the same either rigidly or jointedly to the framework of the scarifier or to
some suitable part of the rear of the road roller. An adjustment of the same
can be arranged in relation to the road surface, and also an arrangement for the
momentarily lifting of the same should any protuberance on the road come
within its path. The lower edge of the guard or skirting may be flexibly built,
or be fitted with a flexible material, which will allow of a displacement when
necessary, and give the same a righting action.
It is preferable that the guard or skirting only comprehends the actual working
sides, the back portion constituting purely a stay to the same.
Dated this 15th day of October 1896
W. P. THOMPSON & Co.,
Of 11 Burlington Chambers, New Street, Birmingham,
६
Agents for the Applicant.

page_text: Improvements relating to the Scarifying Mechanism of Road Rollers
and other Machines.
I, THOMAS CLIFFORD AVELING of 41, Ryland Road, Edgbaston, Birmingham, in
the County of Warwick, Engineer, 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 relates to scarifying mechanism, and has been distinctly
considered in connection with road repairing rollers.
Scarifying mechanism consists generally of a series of pick ends, jointedly
connected to a trailing framework, capable of being attached to the rear of a steam
road roller; the same being fitted mith mechanism for putting into and out of
action the said pick ends. The attachment is used for cutting up the surface of
roads to be repaired. It has been found that the road metal displaced by the
pick ends instead of keeping within the path thereof is thrown sideways onto the
untouched surfact; necessitating a scavenger following the roller to sweep or rake
the said road metal from the untouched surface onto the cut-up one.
The object of my invention is to obviate this by providing the scarifying
mechanism with a metal or other guard or skirting board to embrace the pick
ends, to trail within a suitable distance from the ground and to prevent the road
metal displaced from leaving the trail of the scarifier.
The said guard I preferably construct from metal, suitably strengthened, and
attach the same either rigidly or jointedly to the framework of the scarifier or to
some suitable part of the rear of the road roller.
This invention is practically illustrated in the accompanying sheet of drawings,
Figs. 1 and 2 representing it applied to the scarifying mechanism of a steam
read roller, and Figs. 3 and 4 separate views of desirable adjustments in connection
therewith.
The scarifying mechanism a is carried by a trailing framework a², affixed to the
rear of the tender b and one of the wheels 2 of the steam road roller, but this
mechanism of itself forms no part to this invention and therefore need not to be
described at length. The guard or mould boards which form the subject of the
invention are represented by two depending parts c, each consisting of a leg c³
and a blade or foot, the latter being of a considerable area. These depending
parts c, c², are hingedly or jointedly connected at d to the framework a² of the
scarifying mechanism, their ends being mounted upon outstanding pegs d³, or
their equivalents, through the medium of screw nuts or the like. The blades or
feet of these two depending parts are adopted to trail with the scarifying mechanism
and to come within a short distance of the road surface, and each can be brought
into and out of operation independently of the other.
A chain handle or its equivalent may be fixed to each of the depending parts c, c,
for the purpose of lifting them in and out of action and affixing them, as it is not
at all likely that both parts will trail at the same time.
In Fig. 3 a vertical adjustment of the carrying fulcrum of the depending part
is shown, a slot e being the medium, and a stop projection or rest block e is
shown upon the framework carrying the depending parts, to prevent the foot's
contact with the ground whilst, in Fig. 4, a horizontal adjustment of the blade
or foot relative to its carrying arm is shown. The arm and blade in this view
are separate parts, connection being effected by cross bolts g; a sloth being formed
within the lower portion of the arm 3 for adjustment purposes.
The depending guards or mould boards c, c, may be slung loosely upon a common

page_text: centre pin, so long as they are capable of being momentarily lifted for their blades
to clear any protuberance upon the road surface such as a sewer cap. The right
is also reserved to make the blades of the mould boards various shapes to suit the
different scarifying mechanisms, and they may be arranged in duplicate or upon
both sides of the pick ends of the scarifying mechanism.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is:-
First. In scarifying mechanism, the use of a trailing guard, skirting, or mould
board, or any number of the same, either rigidly or jointedly connected to the
frame work of the scarifying mechanism, or some part carrying it, so as to trail
adjacent to the pick ends, substantially as and for the purpose described and set
forth.
Second. The combination with a scarifying mechanism, either independent of
or attached to a road roller, of loosely depending mould boards or guards carried
by the mechanism's framework, and capable of being lifted into and out of action
either permanently or momentarily, substantially as described.
Third. The combination with a scarifying mechanism of guards or mould boards
loosely jointed to the scarifying mechanism's framework, and stops or projections es
carried by the latter, substantially as described.
Fourth. In a guard or mould board the horizontal vertical and tilting
adjustments as set forth in rigs. 3 and 4.
Dated this 15th day of July, 1897.
W. P. THOMPSON & Co.,
11 Burlington Chambers, New Street, Birmingham,
Agents for Applicant.