An Improved Method for Oiling the Axles of Traps, Tramway Carriages, and Road Vehicles
Year: 1891

page_text: Date of Application, 10th Dec., 1891
Complete Specification Left, 10th Sept., 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
An Improved Method for Oiling the Axles of Traps, Tramway
Carriages, and Road Vehicles generally.
ALFRED MALLA BONE LINNEY Bedworth Nuneaton Ironmonger do hereby
declare the nature of this invention to be as follows:-
To allow renewal of oil supply without taking off the cap or box as in old
method. The improvement consists in boring a hole in face of cap or box, of any
suitable size; the aperture thus made in the face of cap to be closed by a button
or plug being inside the cap, having a flange attached; on the face of which
(flange) is fastened a washer of leather, rubber or their equivalent. The plug or
button to be kept in place by a spring either spiral or otherwise, which also allows
the button to be pushed back from the outside for the insertion of the nozzle of an
oil can or syringe at pleasure, when the oil can is withdrawn the aperture is closed
by the plug being pressed back again to its place by the aforesaid spring.
Dated this 9th day of December 1891
COMPLETE SPECIFICATION.
An Improved Method for Oiling the Axles of Traps, Tramway
Carriages, and Road Vehicles generally.
I, Alfred MALLA BONE LINNEY of Bedworth near Nuneaton in the County
of Warwick Ironmonger 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 the lubrication of the bearings of such road vehicles as
have wheels rotating on non-rotating male axles and the aperture in the outer face
of the wheel closed by a cap and has for its objects increased ease and rapidity in
performing the operation of lubrication.
.
In carrying out this invention I bore or otherwise form a hole of suitable
any
size in the face of the cap, such hole being preferably round in shape, situated in
the centre of the face of the cap and having its lengthwise direction at right angles
to the said face.
I make a plug of metal, wood or other suitable material and provide it with a
flange carrying a washer or washers of leather, india-rubber or their equivalent.
The outer end of the plug is preferably tapered or rounded and, at its base, made
to correspond in shape to the hole in the face of the cap but of rather smaller
dimensions so that it may project into or partly through the hole and act as a guide
to the flange and washer or washers without interfering with their free and proper
working. The washer or washers may be secured to the inside of the face of the
cap around the edge of the hole if preferred.
A spiral or other spring is secured within the cap in such a manner that it
forces the plug in the direction of the hole in the cap pressing the washer or
washers between the flange on the plug and the inside of the face of the cap around
the edge of the hole so as to form a joint sufficiently tight to prevent the escape of
the lubricant. When I use oil or a lubricant having similar properties I prefer to
make the washer or washers of some other material than india-rubber is destroyed
by the action of oil upon it. The spring is sufficiently weak to allow of the
repression of the plug to admit the spout of the oil can or syringe by means of
which the lubricant is introduced into the bearing. When the spout of the oil can
4

page_text: or syringe is withdrawn the hole.is closed by the plug being pressed back again
nto its place by the said spring.
In order that my invention may be well understood I append drawings which
show the general form and arrangement of the parts of my invention but modifi-
cations can be made without departing from the spirit of my invention. In the
drawings similar letters of reference refer to similar parts.
Figure 1 is a front view of a cap fitted with my improved .lubricating device,
and Figure 2 is a cross sectional view of the same.
The cap A is of the usual construction but is bored with a-hole B in the face.
The plug C is formed with a flange D carrying the washer or washers E. between
t and the inside of the face of the cap around the edge of the hole B, and having
its outer end L rounded and projecting through the hole B in the face of the
cap A. The spiral spring. F is secured within the cap by means of a cylinder G
provided with a flange H by which it is soldered or otherwise attached to the
inside, of the cap A. The cylinder G. has an aperture or apertures K to allow of
the passage of the lubricant to the bearing. A plug J is screwed into the outer
end of the cylinder G and causes the spring F to bear against the plug C.so that
the washer or washers E is or are compressed and the joint made sufficiently tight
to prevent the escape, of the lubricant. The cylinder G may be made in one piece
with the cap A if preferred, in which case the flange H would be unnecessary.
80
To introduce the lubricant within the cap A the spout of the oil-can or syringe is
pressed against-the-plug C so as to admit the end or spout within the hole B, when
the lubricant is ejected from the can or syringe into the cap A. Upon with-
drawing the spout of the oil-can, or syringe the spring, F causes the plug C and
washer E to return to their normal positions and close the hole B, so preventing the
escape of the lubricant.
By these means the operation of lubrication is obviously more easily and quickly
performed than by the usual method of unscrewing the cap, charging it with oil and
screwing it in again.
1
I am aware that lubricators for stationary engines and the like have already been
made with a hole closed by a plug forced into place by a spring but this .con-
struction is, not suitable for road vehicles as the vibration unseats the plug and
allows the escape of the lubricant and I do not claim such arrangement as my
invention but
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In lubricators for the axles of road vehicles the combination with a cap having
a hole bored through the face, of a plug carrying a flange, and washer, or washers
and forced into place by a spring substantially as and for the purpose set forth.
2. In lubricators for the axles of road vehicles the combination with the cap A,
having a hole B, of the plug C, carrying a flange D and a washer or washers, E
and spring F substantially as described.
3. The method or means for oiling the axles of road vehicles, as herein before
described and set forth.
Dated this 9th day of September 1892.
WILLIAM BESTWICK MAXFIELD,
19, Bowling Green Street, Leicester, Applicant's Agent.