Improvements in Road Rollers, Road Locomotives, and other Vehicles used for Road Traffic.
Year: 1891

page_text: Date of Application 18th Mar., 1891
Complete Specification Left, 17th Dec., 1891-Accepted, 23rd Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Road Rollers, Road Locomotives, and other Vehicles
used for Road Traffic.
We, ROBERT HENRY FOWLER, and JOHN BARRATT, both of the Steam Plough
and Locomotive Works, Leeds, in the County of York, Engineers, do hereby
declare the nature of this invention to be as follows:-
In steam road rollers and like locomotives we form the smoke box and chimney
base in one casting with the projecting head or bracket by which the front roller
carriage is supported.
The scrapers used for cleaning the rollers or wheels we construct so that they
may automatically adjust themselves to the surface of the roller or wheel and yet
allow any rigid protection to pass without damaging the scrapers or straining the
parts carrying them.
The rollers or wheels we provide with independent renewable tyres or outer
rims which may be fixed or removed without disturbing the main structure of the
wheel. We make the wheel body or main structure of the wheel self contained
and independent of the outer rim or tyre. The outer rim or tyre we form with a
flange around its inner circumference and we secure the tyre to the rim of the
wheel body by inserting wedges transversely between them at distances apart
around their circumference. The wedges we form with screw bolts extending from
their smaller ends and these pass through radial slots formed in the flange of the
outer rim or tyre and have nuts screwed on to their outer ends. By screwing up
the nuts the flange on the inside of the tyre is drawn against one side of the rim
of the body of the wheel and the tyre and body are securely locked together.
Dated this 14th day of March 1891.
R. H. FOWLER.
JOHN BARRATT.
COMPLETE SPECIFICATION.
Improvements in Road Rollers, Road Locomotives, and other Vehicles
used for Road Traffic.
We, ROBERT HENRY FOWLER, and JOHN BARRATT, both of the Steam Plough
and Locomotive Works, Leeds, in the County of York, Engineers, 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:-
Our invention relates in part to the road wheels of steam road rollers, road
locomotives and self moving engines, portable engines, and other vehicles. The
object of this part of the invention is to provide independent renewable tyres or
outer rims which may be fixed to or removed from the body of the wheel without
disturbing the main structure. The outer rim or tyre we form with a flange
around its inner circumference and we secure the tyre to the rim of the wheel body
by inserting wedges transversely between them at distances apart around their
circumference. The wedges we form with screw bolts extending from their smaller
ends and these pass through radial slots formed in the flange of the outer rim or
tyre and 'have nuts screwed on to their outer ends. By screwing up the nuts the
flange on the inside of the tyre is drawn against one side of the rim of the body of
the wheel and the tyre and body are securely locked together.

page_text: On Sheet 1 of the annexed drawings Figure 1 is an elevation and Figure 2 is a
transverse section of a wheel and renewable tyre in accordance with our invention.
A is the centre boss of the main wheel. B is the renewable tyre. C is the rim
of the main wheel. D D are wedges which lock the tyre to the rim; they act in
conjunction with an inclined surface E within the tyre B. F is the internal flange
of the tyre. The extremities of the wedges D pass through the flange F and
receive nuts G by which they are tightened.
Our invention also relates to the smoke box chimney base and fore carriage
bracket of road rollers. We form these parts in one casting. We fix this casting
to the boiler shell in a manner which gives great stability; we provide a flanged
ring on the end of the boiler shell and another flanged ring upon the casting; on
this latter we also provide an annular projection which enters for a short distance
within the boiler shell; and this when the flanges are bolted together renders the
connection very rigid and stable.
Sheet 2 of the drawings illustrates this part of our invention.
Figure 1 is a side elevation of the fore part of a road roller in accordance with
our invention.
Figure 2 is an elevation of the casting combining the smoke box, chimney base
and head or bracket for the fore carriage.
Figure 3 is a plan of the casting, a small part of it is in section and a portion of
the boiler shell is also shown.
A is the casting combining the smoke box, chimney base, and forecarriage
bracket. B B are the front rollers. C is the fore carriage. D is the boiler shell;
the tube plate is indicated within it by dotted lines. E is an angle flange at the end
of the boiler shell. F is a corresponding flange on the casting. G G are bolts
and nuts by which the parts are held together. H is an annular projection upon
the casting fitted to enter the end of the boiler shell. This construction admits of
the fore part of the engine being readily disconnected and another (it may be of a
different type) substituted.
Another part of our invention relates to scrapers, used for cleaning the rollers or
wheels, these we construct so that they may automatically adjust themselves to the
surface of the roller or wheel and yet allow any rigid projection to pass without
damaging the scrapers or straining the parts carrying them.
On Sheet 3 of the annexed drawings Figure 1 is an elevation of a wheel with
scrapers in accordance with our invention.
Figure 2 is a plan.
AA are iron bars fixed to the tank or other part of the engine. B is the wheel
or roller. CC are flexible steel springs fixed to the bars A. A and carrying the
scrapers D D which are set radially to the wheel or roller.
Scrapers thus arranged operate to prevent mud adhering to the wheels or rollers
being carried up over the wheel, and cause it to be at once removed and to fall to
the ground. These scrapers in consequence of their position and the elasticity of
their supports adjust themselves automatically and yield when necessary so as to
avoid injury to the machine.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. A metal wheel with a renewable tyre secured by wedges drawn up to au
internal flange or projection within the tyre substantially as described in respect to
Sheet 1 of the drawings.
2. A steam road roller or like locomotive with the smoke box, the chimney base
and the head or bracket formed together as a casting which is secured to the end
of the boiler shell substantially as described in respect to Sheet 2 of the drawings.
3. A steam road roller or like locomotive with the smoke box secured to the end
of the boiler shell in the manner shown by Figure 3 on Sheet 2 of the drawings.

page_text: 4. A road roller or road locomotive with spring scrapers applied to its wheels
or rollers on the rising side or on both sides and in such manner as to remove mud
or material adhering to the wheel but able to yield when necessary to avoid
breakage of the parts.
Dated this 27th day of November 1891.
CARPMAEL & Co.,
Agents for the Applicants.