A New and Improved Machine for Breaking Up the Surfaces of Roads or other Hard Surfaces.
Year: 1895

page_text: Date of Application, 5th Feb., 1895
Complete Specification Left, 5th Nov.. 1895-Accepted. 21st Dec.. 1895
PROVISIONAL SPECIFICATION.
A New and Improved Machine for Breaking Up the Surfaces of
Roads or other Hard Surfaces.
I, HARRY MORRISON of 36 Buckingham Road Stratford in the County of
Essex, Engineer, do hereby declare the nature of this invention to be as follows:-
My invention consists of a machine for breaking up the surfaces of Macadam
roads, or other hard surfaces. The parts of the said machine, being constructed
and combined, and used substantially in the manner hereinafter described.
My improved road-breaking machine is used principally for the purpose of
breaking up the surfaces of roads preparatory to laying down stones or new
materials for repairing the said roads, but the machine may also be used for
breaking up other hard surfaces.
My improved road-breaking machine consists essentially of a heavy block or
blocks of iron, carrying at opposite sides a set of teeth or pointed tools for operating
on the road to be broken up.
The two sets of teeth are inclined in opposite directions, one set to be used when
travelling in one direction and the other set to be used when travelling in the
opposite direction.
The block or blocks carrying the two sets of tools, are to be mounted on an axle
or pivot, so that the said block or blocks, can be rotated or rocked sufficiently so
that one set of tools can be raised from the ground, and out of action, and the
other set, be lowered down into position for operating upon the road in the opposite
direction.
The rocking block or blocks to have proper sockets, or tool holders cast ou, or
secured to it, for the purpose of securing the tools, or teeth the said teeth to be
adjustable to length by means of set screws, wedges, or other suitable fastenings.
The axle of rocking block is to be carried in a frame, having at its lower end a
solid block, or stops, to support the rocking block at the proper angle on either
side when in action upon the road.
The rocking-block is turned upon its axle, to the proper angle so as to raise one
set of teeth and to depress the other set, by means of levers, screws and nuts or
other suitable means the said levers to have proper arrangements for locking same
to frame when in position.
The frame carrying rocking block is to work vertically in guides having at
their upper end a crossbar connecting them together, the said crossbar to have a
strong vertical screw in conjunction with a nut in the top of frame of rocking
block, or other suitable means of raising and lowering the said block vertically, for
the purpose of adjusting the depth to which the surface of the road is to be broken
or for raising both sets of teeth simultaneously out of action for travelling or for
passing over any obstruction, or part which may not be required to be broken.
The machine may be secured to the side of or behind any road-roller or road
engine & may require a guide wheel, to prevent the teeth from entering the ground
too-deeply, or it may be mounted upon a suitable heavy carriage to be hauled by
steam or other traction power.
Dated this 5th day of February 1895.

page_text: A New and Improved Machine for Breaking Up the Surfaces of
Roads or other Hard Surfaces.
I, HARRY MORRISON 36 Buckingham Road Stratford Essex, 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 :-
My invention consists of a machine for breaking up the surface of Macadam
roads or other hard surfaces. The parts of the said machine being constructed and
combined and used substantially in the manner hereinafter described. My
improved road breaking machine is principally useful for the purpose of breaking
up the surfaces of roads, preparatory to laying down stones or new material for
other
repairing the said roads, but the machine may also be used for breaking up
hard surfaces. My improved road breaking machine consists essentially of a
heavy block or blocks of iron carrying at opposite sides, a set of tools or pointed
teeth for operating on the roads to be broken up. The two sets of teeth are
inclined in opposite directions, one set to be used when travelling in one direction,
and the other set to be used when travelling in the opposite direction.
The block or blocks carrying the two sets of tools is mounted upon an axle or
pivot, so, that the said block, or blocks can be rotated or rocked sufficiently so that
one set of tools can be raised from the ground and out of action, and the other set
be lowered down into position for operating upon the road in the opposite
direction.
The rocking block or blocks to have proper sockets or tool holders cast on or
secured to it for the purpose of securing the tools or teeth, the said teeth to be
adjustable to length by means of set screws, wedges, or other suitable fastening.
The axle of the rocking block is to be carried in a frame, having at its lower
end a solid block or stops to support the rocking block at the proper angle on
either side when in action upon the road. The rocking block is turned upon
its axie, to a proper angle, so as to raise one set of teeth, and to depress the
other set by means of a lever, screw & nut, or other suitable means, the said
lever to have a proper arrangement for locking same to frame when in position.
The frame carrying rocking block is to work vertically in guides, having at
their upper end a crossbar connecting them together. The said crossbar to
have a strong vertical screw in conjunction with a nut in the top of frame of
rocking block or other suitable means of raising & lowering said block vertically,
for the purpose of adjusting the depth to which the surface of the road is to
be broken or for raising both sets of teeth simultaneously out of action for
travelling or for passing over any obstruction or part which may not require
to be broken. The machine may be secured to the side of or behind any road
roller or road engine and may require a guide wheel to prevent the teeth from
entering the ground too deeply or it may be mounted upon a suitable heavy
carriage to be hauled by steam or other traction power.
Referring to the annexed drawings.
Figure 1 is a side elevation showing my invention applied to a road engine or
steam road roller.
Figure 2 plan view of same.
a is a rocking block, carrying the tool holders a¹ & a² and is pivoted at b,
c is a lever, by means of which the block a may be rocked upon its pivot
and d is an arrangement for locking the lever c consisting of a curved slotted
plate d', screw & nut d² in any desired position. e. e are the tools for breaking
up the road, and are set as shown, so that one operates in advance of the
other. ff. are the wedges, by means of which the tools e. e are secured to the

page_text: tool holders a¹ & a². g is the frame in which the block a is pivoted and carries
at its lower end the stops or beds g¹ g² for supporting the block a. with the
tools e. e. at the proper angle on either side when operating upon the road.
h, h are the guides in which the frame g works, and the raising and lowering
of the said frame is worked by any suitable means, such as the rack j into
which is geared, the pinion 1 being keyed to the same axle as the worm
wheel, the worm wheel k being worked by the worm by means of the
hand wheel . By this means the tools e, e may be raised or lowered, and the
depth of the cut regulated, without altering the angle of the tools. m, m¹ are
strong connecting bars by means of which the strains when working are
municated to the main axle of the roller and the cross strains are taken from
the tender part of the said roller.
com-
The machine as described may be attached to any road roller or traction
engine or carriage & may be drawn or propelled by steam or any kind of power.
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 I
claim is.
1. The combined road engine and road breaker substantially as described and
illustrated herein.
2. In road breakers a pivoted tool holder carrying tools; beds or supports
upon which said tool holder bears, said beds or supports and tool holder being
vertically adjustable substantially as described.
3. In a road breaking machine in combination with a pivoted tool holder,
carrying tools at either side, a frame in which said tool holder is pivoted
arranged to slide vertically in guides substantially as described and illustrated
herein.
4. In a road breaking machine in combination with a pivoted toolholder and
sliding frame, blocks, beds or supports for supporting said pivoted toolholder at
the required angle for working upon a road substantially as described and
illustrated herein.
5. In a road breaking machine a frame carrying toolholders, arranged to slide
vertically in guides substantially as herein described and illustrated.
Dated this 4th day of November 1895.
E. EATON,
Agent for Applicant.