Improvements in the Bearings of Velocipedes.
Year: 1896

page_text: Date of Application, 1st Sept., 1896
Complate Onmnic
Improvements in the Bearings of Velocipedes.
I, PHILIP LOUIS RENOUF, of the Holford Engineering Works, Perry Bar near
Birmingham, Engineer, do hereby declare the nature of this invention to be as
follows:-
My improvement in the bearings consists in the manner of mounting a washer
of felt or similar material for the exclusion of dust and grit, without increase of
cost in manufacture and without necessarily adding to the width or bulk of the
bearing. For this purpose I merely form a small groove around the recess con-
taining the balls and place thereiu a thin felt ring. The face of the coue keeps
the latter in position and perfectly hidden.
Where separate cups are let into the bearings, the groove is formed by merely
stepping the recess which has to receive the cup; the latter is shortened so that its
outer face does not come level with that of the step. Sometimes the groove is
provided by shouldering down the top of the bearing cup, sometimes by shortening
the outer end of the hearing and pressing a cylindrical end over. By each of the
methods described practically the same configuration is obtained, by means of which
a felt disk may be supported for the purpose described.
Dated this 29th day of August 1896.
I, PHILIP LOUIS RENOUE, of Holford Engineering Works, Perry Barr near
Birmingham, Engineer, 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:-
My improvement in the bearings consists in the manner of mounting a washer
of felt or other similar yielding material for the exclusion of dust and grit, without
an appreciable increase in the cost of manufacture, and without necessarily adding
to the width or bulk of the bearing, or, on the other hand, shortening the distance
between the ball races. It is necessary that the felt washer should be entirely
enclosed between the metal parts, and not directly exposed to air, rain, or dust.
For this purpose I merely form a small groove around the recess containing the
balls, and place therein a felt ring. The face of the cone keeps the latter in posi-
tion, and perfectly hidden.

page_text: Referring to the drawings, Figure 1 shows the back or driving hub of a safety.
bicycle, in section. The left face of the hub has a groove turned in it, and the
right hand face hus a shoulder turned on it; the latter being covered by B, the
ring, locking the chain wheel D. The Coues, C, C, are perfectly plain and simple
in shape, and keep the felt washers A. A. in position without necessarily adding to
the friction. The projection on the left side of the hub, and the nut on the right
side stand over further than the lower steps of the hub, which hold the washer,
and therefore cover the shoulder of the cone and allow the thick dirt and grit to
fall away without going near the felt washers. Figures 2, 3, & 4 show modifica
tions by which the sume device can be applied without increasing the cost of manu-
facture. In Figure 2, the end of the hub is provided with a double recess, the
recess holding the ball hearing being of less depth than the width of the cup, so
that the cup forms a recess for separating the washer. In Figure 3, the recess
on the hub is plain in configuration, whereas the ball bearing cup is partly
shouldered down on the outside. In Figure 4, the recess in the hub is also plain
in configuration, but not to the full depth of the hub. The latter is therefore
covered with a plain cylindrical cover E.
Having now particularly described and ascertained the nature of my said
invention, and the manner in which the same is to be performed, I declare that
what claim is:
Providing the outer face of a recessed or concave bearing part with a groove
larger in diameter than the actual bearing part, for the purpose of carrying a
cylindrical felt washer A; the outer face of such washer being protected by the
inner face of the cone C, for the purpose and in the manner substantially as
described.
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