Improvements in Self-oiling Wheels, more particularly adapted for Tramway Vehicles, such as Colliery Tubs or Corves.
Year: 1889

page_text: Date of Application, 18th Nov., 1889
Complete Specification Left, 18th Aug., 1890-Accepted, 20th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in Self-oiling Wheels, more particularly adapted for
Tramway Vehicles, such as Colliery Tubs or Corves.
IN
FOR
I, JOSEPH TRIPPETT, 50 Minna Road, Pitsmoor, Sheffield, in the County of
York, Steel Works Manager, do hereby declare the nature of my said invention for
"IMPROVEMENTS
SELF-OILING WHEELS MORE PARTICULARLY ADAPTED
TRAMWAY VEHICLES SUCH AS COLLIERY TUBS OR CORVES," to be as follows:-
My invention relates to wheels which revolve on their own axles and likewise to
wheels which revolve on their axles when the axles also revolve in bearings.
Such wheels as ordinarily constructed rapidly wear loose on their axles and
frequently become unfit for use from this cause, before they are worn out on the
tread or flange or from other causes.
To obviate this, wheels have been constructed with hollow bosses to contain oil so
that they may he self oiling and thereby reduce the friction and wear and tear in the
bore, but although such wheels are more costly than ordinary wheels they do not last
much longer, and when worn too loose on the axles they are taken off and cast aside
as useless.
The object of my invention is to construct a self oiling wheel or wheels which
shall be capable of being renewed in the bore when worn too large to run on
the axle.
I effect this object by forming my improved wheel with a hollow or recessed boss
for carrying the oil in combination with an arrangement by which I fit into the boss
of the wheel a specially constructed bush which can be taken out when worn, and
replaced by a new one.
I form the recess or recesses in the boss of the wheel open to its axis, so that when
the bush is inserted into the boss, it only fits the front and back of the boss, and has
part of its outer diameter open to the oil chamber, the bush being thereby surrounded
by oil over a considerable portion of its length is kept cool. The bush is also provided
with a suitable oil hole or holes communicating with the oil space in the boss of the
wheel, through which hole or holes the oil supplied to lubricate the axle within
the bush.
I also form two recesses inside the bush, one near the front and the other near the
back of the bearing or journal, so that the oil which passes from the oil chamber in
the boss through the oil holes in the bush and traverses between the axle and the inside
of the bush may lodge in a circumferential band round the axle.
The wheels and bushes thus described are bored and turned so that the boss of the
wheel may be tightly secured onto the bush by being forced or shrunk on in the
ordinary way or the bush may be secured in the boss by any other ordinary and
convenient means. The bush may be bored to fit the axle either before it is secured
into the wheel or afterwards, as may be found most convenient.
I provide a suitable opening in the boss of the wheel for filling the oil space, such
opening being fitted with a screw plug or other convenient mode for closing the
same.
Wheels and bushes as herein described I cast or otherwise make in steel or other
metal or metallic alloy or a combination of metals may be used as for example,
a cast iron wheel may be fitted with a steel or a brass bush and so forth.
Dated this 16th day of November 1889.
R. HEBER RADFORD,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Self-oiling Wheels, more particularly adapted for
Tramway Vehicles; such as Colliery Tubs or Corves.
I, JOSEPH TRIPPETT, 50 Minna Road, Pitsmoor, Sheffield, in the County of York
Steel Works Manager, do hereby declare the nature of my said invention for
"IMPROVEMENTS IN SELF-OILING WHEELS MORE PARTICULARLY ADAPTED FOR
TRAMWAY VEHICLES SUCH AS COLLIERY TUBS OR CORVES" and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement :-
My invention relates to wheels which revolve on their own axles and likewise to
wheels which revolve on their axles when the axles also revolve in bearings. Such
wheels as ordinarily constructed rapidly wear loose on their axles and frequently
become unfit for use from this cause, before they are worn out on the tread or flange
or from other causes.
To obviate this, wheels have been constructed with hollow bosses to contain oil so
that they may be self oiling and thereby reduce the friction and wear and tear in the
bore, but although such wheels are more costly than ordinary wheels they do not last
much longer, and when worn too loose on the axles they are taken off and cast aside
as useless.
The object of my invention is to construct a self oiling wheel or wheels which
shall be capable of being renewed in the bore when worn too large to run on
the axle.
I effect this object by forming my improved wheel with a hollow or recessed boss
for carrying the oil in combination with an arrangement by which I fit into the boss
of the wheel a specially constructed bush which can be taken out when worn and
replaced by a new one.
I form the recess. or recesses in the boss of the wheel open to its axis, so that when
the bush is inserted into the boss it only fits the front and back of the boss, and has
part of its outer diameter open to the oil chamber, the bush being thereby surrounded
by oil over a considerable portion of its length, is kept cool. The bush is also provided
with a suitable oil hole or holes communicating with the oil space in the boss of the
wheel through which hole or holes the oil is supplied to lubricate the axle within
the bush.
I also form two recesses inside the bush one near the front and the other near the
back of the bearing or journal, so that the oil which passes from the oil chamber in
the boss through the oil holes in the bush and traverses between the axle and the inside
of the bush.may lodge in a circumferential band round the axle.
The wheels and bushes thus described are bored and turned so that the boss of the
wheel may be tightly secured on to the bush by being forced or shrunk on in the
ordinary way or the bush may be secured in the boss by any other ordinary and
convenient means. The bush may be bored to fit the axle either before it is secured
into the wheel or afterwards as may be found most convenient.
I provide a suitable opening in the boss of the wheel for filling the oil
space,
such
. opening being fitted with a screw plug or other convenient mode for closing the
same.
Wheels and bushes as: herein described I cast, or otherwise make in steel or other
metal or metallic alloy or a combination of metals may be used as for example, a cast
iron wheel may be fitted with a steel or a brass bush and so forth.
The nature of my invention will be better understood on reference to the
accompanying sheet of drawings in which;
Fig. 1. is an end elevation of a wheel partly in section.
Fig. 2. a side elevation of the same.
The same letters refer to similar parts throughout the several views.
ara is the hallowe
.3

page_text: b, b, is a specially constructed bush.
c, c, is the oil hole or holes through which the oil flows from the oil space in the
hollow or recessed boss a, to lubricate the axle within the bush.
e, e, are two recesses inside the bush in which the oil may lodge in a circumferential
band round the axle.
f, is a hole or opening formed in the boss a, a, through which the oil supply is
conveyed to the oil space in the boss a, a.
g, is a screw plug or other convenient device for closing the same.
Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed I declare that what I
claim is:
(1.) In a wheel adapted for tramway vehicles such as colliery tubs or corves the
combination of parts and appliances by means of which such wheels may be made
self oiling and which shall be capable of being renewed in the bore, when worn too
large to run on the axle, such combination of parts and appliances comprising the
hollow or recessed boss a, a, for carrying the oil; the specially constructed bush b, b,
formed with the hole or holes c, c, and with the two recesses e, e, the hole or opening f,
in the boss a, a, with the screw plug g, for closing the same, substantially as and
for the purposes herein described and illustrated on the accompanying sheet of
drawings.
(2.) Improvements in self oiling wheels more particularly adapted for tramway
vehicles such as colliery tubs or corves, substantially as and for the purposes herein
described and illustrated on the accompanying sheet of drawings.
יוו ו מ
R. HEBER RADFORD,
Agent for the Applicant.
R. HEBER RADFORD,
Agent for the Applicant.