other Axles which have not Grease Boxes Attached.
Year: 1886

page_text: Date of Application, 7th Dec., 1886.
Complete Left, 25th Aug., 1887.
Complete Accepted, 27th Sept., 1887.
other Axles which have not Grease Boxes Attached.
We, ROBERT LAIDLAW DUNFORD, ERRINGTON DUNFORD (trading as Dunford
Brothers) of No. 37 Mosley Street, in the City and County of Newcastle-upon-Tyne,
Colliery Contractors, and GEORGE EMENS, of Market Street, Hetton-li-Hole, in the
County of Durham, Engineer, do hereby declare the nature of this invention to be as
follows:-
The apparatus is intended to be placed in a convenient situation, one on each side,
between the rails of the tramway so that each tub of a train passing over it, in either
direction, will receive on the journals of each of its axles an adequate quantity of the
grease lubricant, any excess being returned to the reservoir.
It consists of a semicircular trough, containing the lubricant, the upper edge of
which is level with the ground and covered in to keep out dirt or coal dust, except the
space through which a wheel works, the rim of which is in breadth suitable for the
axle journal and has formed across it all round, concave recesses which contain the
lubricant. The rim of this wheel instead of being rigidly connected to the boss or
centre by arms has an elastic connection by means of spiral or other springs (preferably
4 in number) enclosed in tubular cases interposed between the rim and the boss, which
boss has preferably 4 flat faces upon which the feet of the cases, enclosing the springs,
slide freely, the result being that when the axle of a running tub comes into contact
with one of the concave recesses in the rim the journal receives a charge of lubricant,
and, besides revolving the rim, pushes it in the direction in which it is running, the
springs yielding and the feet of the enclosing cases sliding on the flat faces of the boss,
'מ

page_text: the rim being pushed temporarily into a position eccentric to the centre of its axle till
the tub axle has passed over when it returns to its normal position to be acted upon in
the same manner by the next following axle which receives a fresh change of
lubricant. Thus the rim will suit itself to tubs having wheels of different diameters
within reasonable limits, but, in order to enable it to be further adjusted to suit wheels
varying considerably in diameter, it is carried between a pair of frames in such a
manner that its axle can be readily raised or lowered and fixed in any position and
the greasing wheel on one side of the line being entirely unconnected with the wheel
on the other side, each acts freely to administer a charge of grease to the journals on
its own side of the line of tubs.
Dated thin 7th ...
L
100C
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicants.

page_text: other Axles which have not Grease Boxes Attached.
We, ROBERT LAIDLAW DUNFORD, and ERRINGTON DUNFORD (trading as Dunford
Brothers) of No. 37 Mosley Street, in the City and County of Newcastle-upon-Tyne,
Colliery Contractors, and GEORGE EMENS of Market Street, Hetton-le-Hole, in the
County of Durham, Engineer, do hereby declare the nature of said invention and in
what manner the same is to be performed to be particularly described and ascertained
in and by the following statement :—
The apparatus is intended to be placed in a convenient situation, one on each
side, between the rails of the tramway so that each tub of a train passing over it, in
either direction, will receive on the journals of each of its axles an adequate quantity
of the grease lubricant, any excess being returned to the reservoir.
It consists of a semicircular trough, containing the lubricant, the upper edge of
which is level with the ground and covered in to keep out dirt or coal dust, except the
space through which a wheel works, the rim of which is in breadth suitable for the
axle journal and has preferably, formed across it all round, concave recesses which
contain the lubricant, but in certain cases, as when the tubs or other vehicles run at
high speeds, we propose to make the rim plain, to obviate shocks and it may be covered
with some soft or elastic material.
The rim of this wheel, instead of being rigidly connected to the boss or centre by
arms, has an elastic connection by means of spiral or other springs (preferably 4 in
number) enclosed in tubular cases interposed between the rim and the boss, which boss
has, preferably, 4 flat faces upon which the feet of the cases, enclosing the springs, slide
freely, the result being that, when the axle of a running tub comes into contact with
one of the concave recesses, when so formed, in the rim, the journal receives a charge
of lubricant, and, besides revolving the rim, pushes it in the direction in which it is
running, the springs yielding and the feet of the enclosing cases sliding on the flat
faces of the boss, the rim being pushed temporarily into a position eccentric to the
centre of its axle, till the tub axle has passed over, when it returns to its normal
position to be acted upon in the same manner by the next following axle which
receives a fresh charge of lubricant. Thus the rim will suit itself to tubs having
wheels of different diameters, within reasonable limits but, in order to enable it to be
further adjusted to suit wheels varying considerably in diameter, it is carried between
a pair of frames in such a manner that its axle can be readily raised or lowered and
fixed in any position, and the greasing wheel on one side of the line being entirely
unconnected with the wheel on the other side, each acts freely to administer a charge
of grease to the journals on its own side of the line of tubs.

page_text: On the accompanying sheet of drawings Fig. 1 is a side elevation, in section
through one of the troughs, shewing a coal tram or tub (travelling in the direction of
the arrow) with its axle in contact with the rim of the greasing wheel, and Fig. 2 is
an end elevation of one half of a tramway and tram or tub with one side of the
apparatus complete and a portion of the trough on opposite side.
A is the trough containing the lubricant fixed between the sleepers and covered in,
except the wheel space, by B. C is a frame between the sides of which the greasing
wheel works upon an axle E adjustable as to height in the slots F and fixed by a jam
nut G. The boss H of this wheel is square and each face receives a foot of one of the
tubular cases J enclosing the spiral springs K which, by the short arms L, projecting
from the rim of the wheel form the elastic connection.
The axle M of the tram or tub coming into contact with the rim R of wheel (in this
case corrugated) receives a charge of lubricant and travelling on depresses the rim,
into the position shewn by dotted lines, the arms L, springs K and enclosing
cases J adjusting themselves accordingly and the tram or tub, having travelled on, the
wheel returns to its normal position. It will be seen that the wheel once centred will
adapt itself to different sizes of tram or tub wheels, within reasonable limits, but when
these limits are exceeded the adjustable centre gives further scope for larger or smaller
sizes.
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 :-
First. The construction and application of an automatic greasing apparatus in which
a greasing wheel, revolving in the lubricant, has a rim so connected with a boss on a
fixed centre that, by contact with the axle of a running "tram" or other wheeled
vebicle, it will be so altered in position, relatively to its centre, that it will allow the
axle, after being greased, to pass over it and return to its normal position substantially
as described.
Second. The automatic greasing apparatus, consisting of the trough A, the frame C
carrying the greasing wheel on an axle E, adjustable in a slot F by a jam nut G, a
boss H running freely upon said axle and having square faces to receive the flat feet
of tubular cases J enclosing springs K which form the elastic connection with the rim
of wheel R by the short arms L the whole constructed combined and operating
substantially as described and shewn by the drawings.
Doted the 24th day of Aranch 1887