Improved Driving Gear for Velocipedes.
Year: 1892

page_text: Date of Application, 29th Jan., 1892
Complete Specification Left, 31st Oct., 1892-Accepted, 28th Jan., 1893
PROVISIONAL SPECIFICATION.
Improved Driving Gear for Velocipedes.
JOHN ALBERT SCORE, 42 Methley Street Kennington Park Road, Lambeth
Surrey Engineer ALEXANDER ROBERT MACBETH, RICHARD STEVENS
PHILLIPS, and PERCY STANLEY TAVENER, The Arches, York Terrace Clapham
Road. Lambeth, Surrey, Cycle Makers do hereby declare the nature of this
invention to be as follows:-
"
A means of giving a greater rigidity to the several parts used in driving gears,
and principally relates to the construction and arrangement of the bearings. The
hub is of dimensions that will allow of a spindle or axle to pass through somewhat
out of the truc centre line to accommodate the difference in the size of the gearing
wheels used. The two bearings on the hub are of different design, the one on the
driving gear side is known as a cone" and runs inside a cup or collar, part of the
hub continues through the collar, on which (the hub) is fitted a cog-wheel with
outside teeth. The outer part of the cup or collar is enlarged to nearly the full
diameter of the larger gear wheel with inside teeth, and made to act as a bearing
for the same:
The bearing at the other side of the hub is a ::
"
cup bearing and
runs on a large cone bearing the said cone bearing being provided with a
small "cup"bearing, out of the centre line, to carry the spindle or axle. The
large gear wheel is fitted or keyed to the spindle or axle to which the cranks
are attached, a "cup" bearing is formed at the inner edge of the rim and made to
work on the before mentioned enlarged collar. The spindle or axle passes through
the hub and the small cup-bearing provided at the other side of the hub, and is
fitted with a' screwed " conc to take up the wear, by this arrangement all the four
parts may be adjusted at one operation.
$
"
The fork or frame of the velocipede is fitted to the rear or back portion of the
bearings to cause the centre of the hub to be in advance of the fork or frame.
Dated this 28th day of January 1899
JOHN ALBERT SCORE.
ALEXANDER ROBERT MACBETH.
RICHARD STEVENS PHILLIPS.
PERCY STANLEY TAVENER.
COMPLETE SPECIFICATION
Improved Driving Gear for, Velocipedes.
We, JOHN ALBERT SCORE, of 42, Methley Street, Kennington Park Road,
Lambeth; Surrey; Engineer, ALEXANDER ROBERT MACBETH, RICHARD
STEVENS PHILLIPS, and PERCY STANLEY TAVENER, all of The Arches, York
Terrace, Clapham Road, Lambeth aforesaid, in the County of Surrey, Cycle
Makers, 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 improvements in the driving gears of velocipedes, and
more particularly to the general construction and arrangement of the bearings of
the driving wheel, whereby greater rigidity and, strength are obtained.
In order that the invention and the means by which it. is to be carried, into,

page_text: practical effect may be thoroughly understood, we will now describe them in detail,
referring in so doing to the accompanying figures which are to be taken as part of
this Specification and read therewith."
Fig. 1 is a sectional rear elevation taken on the line 1-1 of Fig: 2.
Fig. 2 is a side elevation of Fig. 1 from the right hand thereof after the removal
of the spur driving wheel.
Fig. 3 is a section taken on the line 1-1 of Fig. 2.
Fig. 4 is a sectional plan taken on the line 4-4 of Fig. 1.
Fig. 5 is a sectional side elevation taken on the line 5-5 of Fig. 4.
a is the axle of the driving wheel as well as of the spur wheel of the driving gear
described further on.
e
bis the hub. It is necessarily tubular to allow of the axle a being passed through
it, and of a suitable diameter to provide for it and the adjacent portion of the
driving gear being rigidly fixed together. Both ends of the hub are socketted, i.e.,
are made as cup bearings, and are provided with ball races c, c'. d is a cone
bearing. It enters the socketted end of the hub, thereby closing it and completes
the race c.
On the outer face of the cone bearing d there is formed a cup bearing
for the axle a. This bearing is eccentric with reference to the axis of the hub
when the latter is of a larger diameter as shewn in the figures. It is closed by a
cone bearing e' which enters it. There is a ball race between them. The axle has
formed upon it a screw a¹ upon which the cup bearing can be moved up to the hub.
This capacity on the part of the cup bearing of being moved up along the screw a¹
is used for taking up wear in all the bearings. f is a lock nut for holding the said
bearing up.
is the spur driving wheel. It is fixed on the axle a, and when the latter is the
crank axle, it is geared internally. It is closed on the outside by a disc gland is
further provided with a flange g. is a spur pinion in gear with the wheel g by
which it is driven. It is supported in its operative position by a tube i to the end
of which it is made fast, being flush therewith. The other end of the tube enters
and is made fast to the hub. Both tube, hub and pinion are concentric, but the tube
and pinion are necessarily eccentric with reference to the axle a. The internal
diameter of the tube is large enough for the axle to pass through it. The bearing
for the wheel is provided by a ball race formed on the adjacent faces of a cone
bearingstanding within and made fast to the flange g, and of a second cone
bearing which stands between the said flange and the hub. The opposite face of
the last mentioned bearing enters the end of the hub and completes the ball race c'.
Both cone bearings and k are without centres in order that the tube i can be passed
through them and clear of them, and that the bearing can rotate clear of the tube.
The diameter of the bearing of the wheel g is about the same as that of the wheel
itself. It will be noticed that the last mentioned bearing is to one side of the
adjacent hub bearing but eccentric with it.
9
1,1 are lugs formed upon the cone bearings and k (or it may be on some other
suitable part). They are provided for the fork to be made fast to. The points to
which the fork euds are made fast are in rear of the vertical plane passing through
the axis of the axle.
Our invention is not confined to the crank axle but may be applied to either the
crank or the rear axle.
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. The combination of centreless bearings, pinion fast upon the end of a tube,
tube carrying the said pinion passed through the said bearings, and hub to which it
is made fast, as set forth.
2. A centreless bearing having a ball race on the inner side for the hub bearing
and a second one on the outer side for the wheel of the driving gear, as set forth.

page_text: 3. Lugs for the fork ends to be made fast to in rear of the vertical plane passing
through the axis of the axle, as set forth.
Dated this 31st day of October 1892.
PHILLIPS & LEIGH,
No. 22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicants.