Improvements in and relating to Velocipedes.
Year: 1889

page_text: Date of Application, 3rd June, 1889
Complete Specification Left. 3rd Mar.. 1890-Accepted, 5th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in and relating to Velocipedes.
I, ARTHUR WILLIAM HIRST, of St. Michaels Road, West Croydon, in the County
of Surrey, Cycle Manufacturer, do hereby declare the nature of this invention to be
as follows:-
in
My invention relates to improvements in the chain wheels used for driving
velocipedes, and it has for its object the efficient lubrication of the chain and the teeth
of the said wheel. I attain this object in the following manner :
other con-
I form in, on, or around, the boss of the chain wheel, or any
venient position within the periphery of the said wheel, a chamber or reservoir to
contain the lubricant. From this chamber or reservoir one or more small pipes, or
their equivalents, extend to the rim of the wheel through which they pass and
terminate flush with the exterior form of that part of the rim through which they
Attached to the chamber or reservoir, or forming part of it, is a piston
lubricator, or its equivalent. The lubricant which is preferably vaseline, or other
solid oil, is forced into the chamber and through the pipes leading to the periphery
of the chain wheel by screwing down the cap or piston of the lubricator.
pass.
It will thus be seen that the chain, and teeth of the chain wheel, can be readily
and efficiently lubricated by simply screwing down the cap or its equivalent. I do
not limit myself to the use of any particular number of pipes, or their equivalents
running from the chamber or reservoir to the rim of the wheel, but I find three is a
convenient number, as in the generality of machines the gearing is so arranged that
the chain is constantly travelling round the chain wheels, gaining or loosing teeth
each revolution.
I sometimes make the pipes in the form of channels or their equivalents in the
spokes of the wheel and provide them with suitable covers.
In fitting this device to existing chain wheels, the chamber or reservoir is adapted
to be readily attached to the said wheel by screws or clamps.
I sometimes adapt the apparatus for use with fluid oils, in which case I use
but one pipe so that the lubricant is automatically fed by the rotation of the chain
wheel.
D
T
1 11
a
CT 1000
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
Royal Courts Chambers, 70, 71 and 72, Chancery Lane, London, W.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Velocipedes.
I, ARTHUR WILLIAM HIRST, of St. Michaels Road, West Croydon, in the county
of Surrey, Cycle Manufacturer, do bereby declare the nature of this invention and
in what manner the same is to be performed, to be particularly described in and
by the following statement :-
My invention relates to the chain wheels used for driving velocipedes, and it has
for its object the efficient lubrication of the chain and the teeth of the said wheel. I
attain this object in the following manner.
I form in, on, or around, the boss of the chain wheel, or in any other con-
venient position within the periphery of the said wheel, a chamber or reservoir to
contain the lubricant. From this chamber or reservoir one or more small pipes or
their equivalents extend to the rim of the wheel through which they pass and
terminate flush with the exterior form of that part of the rim through which they

page_text: pass. Attached to the chamber or reservoir or forming part of it, is a piston lubricator
or its equivalent. The lubricant which is preferably vaseline or other solid oil is
forced into the chamber and through the pipes leading to the periphery of the chain
wheel by screwing down the cap or piston of the lubricator.
It will thus be seen that the chain and teeth of the chain wheel can be readily
and efficiently lubricated by simply screwing down the cap of the lubricator or its
equivalent. I do not limit myself to the use of any particular number of pipes, or
their equivalents running from the chamber or reservoir to the rim of the wheel,
but I find three is a convenient number, as in the generality of machines the gearing
is so arranged that the chain is constantly travelling round the chain wheels gaining
or loosing one tooth each revolution.
1 sometimes make the pipes in the form of channels, or their equivalents, in the
spokes of the wheels and provide them with suitable covers.
In fitting this device to existing chain wheels the chamber or reservoir is adapted
to be readily attached to the said wheel by screws or clamps.
1 sometimes adapt the apparatus for use with fluid oils, in which case I use
but one pipe so that the lubricant is automatically fed by the rotation of the
chain wheel.
I will now more particularly describe my invention making reference to the
accompanying drawing in which Figure 1. is a view in side elevation of a chain
wheel fitted with my invention and Figure 2. is a view in transverse section thereof.
Throughout these views similar parts are marked with like letters of reference.
On or around the boss of the chain wheel A, or in any other convenient position
thereon, is formed or fixed a circular chamber or reservoir B of any suitable section.
This chamber or reservoir forms a receptacle for the lubricant. Three or more small
pipes b, b, etc. are fitted into the chamber or reservoir B and extend to the rim of the
wheel through which they pass, each one terminating on the driving face of one of
the teeth, as illustrated.
Attached to the reservoir or chamber B is a lubricator C preferably of the
piston type as shown. This lubricator C is filled with a solid lubricant, consisting
of vaseline, either with or without plumbago, or with any other solid lubricant.
The lubricant is forced into and through the pipes b, b etc. to the outside of the rim
of the chain wheel A by screwing down the cap C' of the lubricator.
As the gearing of most machines is so arranged that the chain is constantly
travelling round the chain wheels gaining or loosing one or more teeth each
revolution, it will readily be seen that the lubricant is soon spread over the wearing
parts of both the chain and chain wheel.
Fluid lubricants can also be used with my apparatus by using but one pipe 6 and
fitting the orifice thereof with a ball valve arranged to feed the lubricant automatically,
and intermittently, by the rotation of the chain wheel.
It will be understood that the chamber or reservoir B for the lubricant may be
formed in, or be part of, the boss of the chain wheel A and that the pipes b, b, etc.
may be formed by drilling or forming holes or channels in the spokes of the said
wheel.
It will be apparent that chain wheels fitted with this improvement may be used for
driving other machines besides velocipedes.
It will also be seen that the number of pipes b, b, etc. is quite immaterial, and
I wish it to be clearly understood that I do not bind myself to the exact details of
construction or arrangement herein before described and shown by the accompanying
drawing, but hold myself at liberty to make such changes and alterations as fairly fall
within the spirit and scope of my said invention.
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. The device for lubricating chain wheels and driving chains, constructed, arranged
and operating as set forth.

page_text: 2. In a chain wheel, a lubricating device consisting essentially, of the chamber
or reservoir B formed in or on the chain wheel A, the pipe or pipes b etc. connecting
the chamber or reservoir B with the rim of the chain wheel A, and the piston
lubricator adapted to force the lubricant from the chamber or reservoir B through
the pipe or pipes b etc., to the exterior of the rim of the wheel A, as and for the
purpose set forth.
Dated this 2nd day of March 1890
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.