Improvements in Machines used for Road Sweeping.
Year: 1890

page_text: Date of Application, 3rd May, 1890
Complete Specification Left, 3rd Feb., 1891-Accepted, 7th Mar, 1891
PROVISIONAL SPECIFICATION.
Improvements in Machines used for Road Sweeping.
We, HENRY SEPTIMUS COLEMAN and ALFRED GEORGE EDWIN MORTON,
Agricultural Engineers, of the "London Road Iron Works," Chelmsford, and trad-
ing under the name of Coleman and Morton, do hereby declare the nature of this
invention to be as follows :—
This invention relates to road sweeping and cleaning machines in which revolving
brushes or scrapers disposed obliquely to the line of draught or travel of the machine
are used; and it has for its object to enable such machines to adapt themselves
to the camber of the road surface and to work equally well on a flat or rounded
surface.
To enable such machines the better to adapt themselves to the surface of the
road so as to work equally well and without undue pressure on any part of the
same whether it be rounded or flat; instead of having the brushes fixed on one
long spindle extending the whole width of the surface swept, the machine is fitted
with two distinct sets of brushes on shorter spindles each of which is driven from
the adjacent side wheel and independently of the other.
Each set of brushes is so arranged that it can be raised or lowered by a lever
worked either by the hand or foot, thus giving the power of working either half
of the machine, or the whole width as may be required.
Datel Grits Die way of maty 1000
H. S. COLEMAN.
A. G. E. MORTON.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Machines used for Road Sweeping.
We, HENRY SEPTIMUS COLEMAN and ALFRED GEORGE EDWIN MORTON,
Agricultural Engineers, of the "London Road Iron Works," Chelmsford, and trad-
ing under the name of Coleman and Morton, 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 road sweeping and cleaning machines in which revolving
brushes or scrapers disposed obliquely to the line of draught or travel of the
machine are used; and it has for its object to enable such machines to adapt
themselves to the camber of the road surface and to work equally well on a flat or
rounded surface.
To enable such machines the better to adapt themselves to the surface of
the road, so as to work equally well and without undue pressure on any part of the
same whether it be rounded or flat, instead of having the brushes fixed on one long
spindle extending the whole width of the surface swept, the machine is fitted with
two distinct sets of brushes on shorter spindles, each of which is driven from the
adjacent side wheel and independently of the other, and each set of brushes being
so arranged that it can be raised or lowered by a lever worked either by the hand
or foot, thus giving the power of working either half of the machine, or the whole
width, as may be required.
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein Figure 1 is a plan of the main frame of the machine, shewing

page_text: the positions of the brushes and the gear for driving them, and Figure 2 is an
elevation of one of the slotted hangers in which the bearings of the shaft are
mounted.
AA are the two brushes set obliquely to the line of draught and preferably out
of alignment with one another, so as to virtually overlap the centre line of draught;
each brush shaft is journaled at or near each end in bearings B sliding in curved
slots in hangers D bolted to the main frame, the hearings being raised in the
slots when necessary by a hand or foot operated rock shaft E mounted above and
parallel to the brush and furnished with arms connected to the brush
bearings by chains, Each brush is driven from the live axle of the adjacent
travelling wheel G by a bevel wheel I connected with the axle by a clutch and in
gear with a bevel pinion on an intermediate shaft 1 geared in turn with the brush
shaft by an endless pitch chain running on a sprocket wheel on the intermediate
shaft and a sanilar sprocket wheel on the brush shaft to which the chain passes
between the bristles. The slots are struck from shaft I as a centre so as to
permit the brush shaft to rise and fall without affecting the driving chain.
To adapt the brush journals to the varying inclination of the brush shaft, they
are made spherical, that is to say the square ends of the brush spindle pass through
east balls a forming spherical journals which are received in spherical cavities in the
bearings so that the brushes may revolve with perfect freedom whatever may be
the inclination of the road surface. The driving clutches are thrown in or out of
gear by any convenient arrangement of levers which, as well as those for inde-
pendently operating the rock shafts E, will be readily understood without
illustration.
In the road scraping machine, the brushes would be replaced by sets of scrapers
similarly arranged and mounted.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
In a road sweeping machine of the kind described, constructing the revolving
brush cylinders in two distinct sets meeting or overlapping at the middle of the
machine and independently mounted and driven so as to enable them to adapt
themselves to the camber of the road, substantially as described and illustrated in
the drawings.
Unfor The 501 NONTHATY
Dator
H. S. COLEMAN.
A. G. E. MORTON.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.