A Combined Road Cleaner, Elevator, and Dirt Cart.
Year: 1899

page_text: Date of Application, 15th Dec.. 1899-Accepted, 26th May, 1900
A Combined Road Cleaner, Elevator, and Dirt Cart.
We, MATTHEW STOBBS, of 97, Bridge Road, Glebe, Sydney, in the Colony
of New South Wales, Engineer, and JOHN SEYMOUR THOMPSON, of "Hastings,'
Regent Street, Paddington, Sydney aforesaid, Commercial Agent, 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 machines for cleaning roads in combination with
an elevator and dirt cart.
Reference is made to the accompanying drawings in which:
Fig. 1 is an elevation.
Fig. 2 a plan.
Fig.
a back view of the casing, shewing the brushes.
Fig. 4 a section at A A.
a are cart wheels which rotate on the short axles b, which support the frames c.
A crank lever d is rigidly secured on the inside of each of the axles b. The
short arms e of the crank levers d support the axle f on which, near each end,
are keyed or otherwise rigidly secured, a cylindrical outer casing y, and a
cylindrical inner receiver h, arranged concentrically with the outer casing.
Between the ends of the outer casing 9 and the inner receiver h, free to
revolve are the wheels i, arranged concentrically with the inner receiver and
outer casing.
We will explain more fully the construction of the outer casing 9, inner
receiver h, and wheels i.
The outer casing g is preferably of steel, the ends being flat, rivetted to angle
iron rings j, after being centred on the axle f by means of the bushes k, which
latter are keyed on said axle, the rings are turned in a lathe to ensure the outer
casing being as nearly as true a cylinder as practicable. A sliding door
runs in suitable guides, to cover in the contents of the receiver h, and so make
the apparatus dust proof. A piece the whole length of the outer casing, of
the width shewn at m is cut away leaving an opening underneath. On the
back, touching the ground (when in operation) are secured spring brushes n,
shewn in Fig. 3, or we may use rubber or insertion, or iron scrapers, or whatever
is suitable for the purpose. The receiver h is preferably of steel, the end plates o
being rivetted to the angle iron rings p, and centred on bushes q, which latter
are keyed to the axle f, the angle iron being turned to enable the receiver to
be cylindrical: the top of the receiver is cut away as shewn at r.
The wheels i consist of the plates s rivetted to the angle iron rings t, and
centred on the bushes u, and turned in a lathe on the periphery; the wheels i
are free to revolve on the bushes k, and are arranged concentrically with the
outer casing g, and the receiver h. Blades r, preferably of steel, but which may
be of any other suitable material or materials, of a width just sufficient to clear
the annular space between the outer casing g, and the receiver h, are fixed radially
between the wheels i, and arranged concentrically with the casing g, and re-
ceiver h; the ends of the blades are shouldered to fit in square holes in rings w
are extended to form bolts ends on which are placed the distance pieces y; on

page_text: screwing up the nuts tightly, the wheels i and blades & form a rigid frame, and
move together around the axle f.
The segments a¹ are secured to the frames c. The long arms b₁ of the levers d
are joined together at the top by the rod c'. The roller has one end of a
rope attached to it, the other end being hooked on to the rod e. The ratchet
wheelf and pawl g', are connected with the roller d. A chain in which is a
spring has one end secured to the frame and the other end to the outer
casing at j. The pawl is for retaining the rod e when brought near enough
to engage.
We will now explain the operation of the apparatus. In Fig. 1 the machine
is shewn ready for operation, with the brushes n and elevator wheels i resting
on the ground; on drawing the machine forward, dirt is driven by the brushes,
towards the blades ; the brushes owing to their construction, rising over any
inequalities of the ground. The elevator wheels and blades are travelling
in the direction shewn by the arrow F and consequently the blades are con-
tinually conveying the dirt into the space between the outer casing g, and
receiver, and delivering it into the latter through the opening in the top,
until it has received a load. The object of the spring (which is in tension) in
the chain h, is to keep the brushes in contact with the ground by pulling on
the opposite side of the outer casing g, and to compensate for any inequalities in
the ground.
i
When loaded, by revolving the roller d, the whole is lifted bodily from the
ground to the position shewn in dotted lines at D, and the pawl engages with
the rod c. The direction of the travel is controlled by the segments a' in which
the axle fmoves.
To empty the receiver h, the rope e' is unhooked from the rod c¹, and the
same end carried underneath the outer casing g and hooked on to some point E;
on revolving the roller in the proper direction, the outer casing g and
receiver revolve in the direction shewn by the arrow C, until openings a* and r
are underneath, when the material will have been emptied from the receiver.
To prepare the machine for use again, the above operations are reversed.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
1. In a combined road cleaner, elevator, and dirt cart, in combination, the
outside cylindrical casing in which are openings in the top and bottom, the
inside receiver in which is an opening at the top, and the axle f, substantially
as described and shewn in the drawings, and for the purpose herein set forth.
2. In combination, the outside casing, the receiver, the elevator, and the
axle f, substantially as and for the purpose herein set forth.
3. The combination of the outside casing 9, with the brushes n, substantially
as and for the purpose set forth.
4. The receiver h, in combination with the axle f, frames c, segments a',
and crank levers d, substantially as and for the purpose set forth.
5. In a combined road cleaner, elevator, and dirt cart, means for lifting the
outside casing, elevator and receiver from the ground, and means for retaining
same in a desired position, as set forth.
6. In a combined road cleaner, elevator, and dirt cart, means for emptying the
receiver h, substantially as herein set forth.
7. The wheels i in combination with the blades and axle f, substantially as
and for the purpose set forth.
Dated this 2nd day of November 1899.
MATTHEW STOBBS.
JOHN S. THOMPSON.