IMPROVEMENTS IN STREET SWEEPING MAGUINDY
Year: 1883

page_text: LETTERS PATENT to Alfred Greig of the Steam Plough Works Leeds in the
County of York, for an Invention of "IMPROVEMENTS IN STREET SWEEPING
MAGUINDY"
PROVISIONAL SPECIFICATION left by the said Alfred Greig at the Office
of the Commissioners of Patents on the 13th October 1883.
ALFRED GREIG of the Steam Plough Works Leeds in the County of York.
"IMPROVEMENTS IN STREET SWEEPING MACHINES
"
The object of this Invention is the improvement in machines used for sweeping
roads and streets.
For this purpose I construct a machine with a suitable frame mounted on two
travelling wheels carrying a large sweeping brush or brushes. This brush or
brushes is driven from the travelling wheels by gear pitch chains, or other suitable
means, so as to sweep in the same direction as the machine is travelling, but at a
quicker speed than the machine travels, into a box or scoop, formed of part of the
frame of the machine.
The dirt or sweepings from the brush or brushes is delivered into this scoop or
box. The dirt in this box, after being forced in by the brush or brushes, is carried
upwards by a suitable elevator, and delivered into a cart or wagon, behind which
the machine is drawn.
The frame of the machine which carries all the different working parts, is free to
move radially on the axle of the travelling wheels, thus allowing the brush or
brushes and the scoop or box, to follow the inequalities of the ground. By placing
the scoop or box, in front of the brush or brushes, I obviate any danger of the edge
catching any inequality in the ground. I also cause the dirt to be gathered
together in the centre of the box, so as to reduce the width of the elevator.
The brush following after the machine, and being driven faster than the
machine advances, the dirt is driven into the collecting box or scoop.
The machine is made so as to be used in conjunction with an ordinary cart, or
wagon being coupled to it with a suitable coupling, flexible enough to allow the
scoop box and brush to conform to the inequalities of the road, and also free to lock
sharp round in turning corners.
The machine can also be attached to, and drawn by a Locomotive road engine, in
conjunction with a cart or wagon.
When the machine is used in conjunction with an engine, the different motions
can be obtained by driving from the engine instead of from the travelling wheels of
the sweeping machine.

page_text: Sheet 2 shows a machine arranged for working by a traction engine, the machine
bengcoupled to the tank of the engine as shown. Figure 1 is a side elevation
Figure 2 is a plan partly in section and Figure 3 is an end elevation.
In this case the brush and elevator are driven by a pitch chain from the road
wheel of the engine, the travelling wheels in this case running loose on the main
axle B. The wagon into which the dirt is delivered by the elevator is coupled
behind the machine.
The letters on the different parts in Sheet N° 2 correspond with the same parts
on N° 1.
What I claim is a sweeping machine consisting of a rotary brush sweeping the
dirt forward into a box or scoop from which it is raised by an elevator and delivered
into a cart or wagon substantially as described.
I also claim a sweeping machine in which the dirt having been swept by a brush
into a box or scoop is collected therein by revolving blades and is then taken by an
elevator raised and delivered into a cart or wagon substantially as described.
In witness whereof I the said Alfred Greig have hereunto set my hand and seal
this nineteenth day of March in the year of our Lord One thousand eight hundred
and eighty four.