Improvements in Axle-boxes with Ball Bearings.
Year: 1895

page_text: Date of Application, 30th July, 1895
Complete Specification Left, 29th Apr., 1896-Accepted, 20th June, 1896
PROVISIONAL SPECIFICATION.
Improvements in Axle-boxes with Ball Bearings.
I, ALFRED BELVALLETTE of 21 Avenue des Champs Elysées, Paris, France,
Carriage Builder, do hereby declare the nature of this invention to be as
follows:-
My invention has reference to axle boxes with ball bearings and a characteristic
feature is that the box is supported and centred around the spindle without touching
it by two circles of balls which are held in two grooves formed in parallel vertical
faces at the two ends of the box.
In carrying out the invention, the cap carried by the spindle of the axle at the
inner end of the box is formed with a circular groove in which a leather washer is
placed to prevent the entrance of dust at this end of the spindle; the other end is
covered by a cap.
The box, which surrounds the spindle without touching it, has
at each end a shoulder hollowed internally to receive a circle of balls and their
supports. These supports consist of a ring having on one side a V- or other
shaped groove to hold the balls at one side; the balls are further held in apertures
in a collar which is placed vertically so as to face the ring the apertures being
equal in number to the balls but of smaller diameter so that the balls will not pass
through them. At the other side of the collar the parts of the balls which project
through the apertures bear against a tightening up ring which is also grooved to
receive the balls. The tightening up rings, that is to say one at each end of the
box appropriated to the corresponding circle of balls and their supports are screwed
up by a nut on the screw threaded end of the spindle. As the nut is screwed up so
as to tighten up the outer ring it pushes the box towards the cap at the inner end
of the spindle and thus tightens up to the required extent the ring which carries
the inner circle of balls against the corresponding tightening ring which becomes
pushed against the said cap. There is a ring screwed into the interior of each end
of the box to retain the balls and their holders when the axle box is dismounted.
One or more supplementary circles of balls can be placed at the end of the
spindle. The balls of these circles bear against inclined surfaces of two rings the
one of which is around the end of the spindle and the other inside the box.
Dated this 30th day of July 1895.
J. C. MEWBURN & ELLIS,
55 and 56 Chancery Lane, Loudon, Chartered Patent Agents.
Improvements in Axle-boxes with Ball Bearings.
1, ALFRED BELVALLETTE, of 21 Avenue des Champs Elysées, Paris, France,
Carriage Builder, 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 invention has reference to axle boxes with ball bearings, and a characteristic
feature is that the box is supported and centred around the spindle without touching

page_text: it by two circles of balls which are held in two grooves formed in parallel vertical
faces at the two ends of the box.
My invention will be fully understood from the following description and by
reference to the annexed drawings.
Figure 1 of the said drawings is a longitudinal section of an axle-box embodying
'my invention.
Figures 2 and 3 are longitudinal sections of the outer extremities of axle-boxes
showing the addition of the supplementary circles of balls hereinafter described.
Similar letters of reference indicate the same parts in all the figures.
Referring to Figure 1 the cap B carried by the spindle A of the axle at the
inner end of the box C is formed with a circular groove in which a leather
. washer a is placed to prevent the entrance of dust at this end of the spindle; the
other end is covered by a cap H. The box C which surrounds the spinille without
touching it, has at each end a shoulder D D' hollowed internally to receive a circle
of balls and their supports E E. These supports consist of a ring having on one
..side a V or other shaped groove e el to hold the balls at one side; the balls are
further held in apertures in a collar c which is placed vortically so as to face the ring
the apertures being equal in number to the balls but of smaller diameter so that the
balls will not pass through them. At the other side of the collar c the parts of the
balls b which project through the apertures bear against a tightening-up ring FF
which is also grooved at to receive the balls. The tightening-up rings F F,
that is to say, one at each end of the box appropriated to the corresponding circle
of balls and their supports E El are screwed up by a nut G on the screw-threaded
end c of the spindle A. As the nut G is screwed up so as to tighten up the outer
ring F, it pushes the box C towards the cap B at the inner end of the spindle and
thus tightens up to the required extent the ring, E, which carries the inner circle
of balls against the corresponding tightening ring F which becomes pushed against
the cap B. There is a ring d d screwed into the interior of each end of the box C
to retain the balls and their holders E E' when the axle-box is dismounted.
One or more supplementary circles of balls can be placed at the end of the
spindle. Figure 2 represents an axle box having one such supplementary circle of
balls and Figure 3 shows an axle box in which two such supplementary circles of
balls are employed. The balls of these circles bear against inclined surfaces m, n
respectively of two rings the one of which K is around the end of the spindle A
and the other O inside the box C. In other respects the modified arrangements
are similar to that described with reference to Figure 1.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. In an axle-box with ball bearings the arrangement of two circles of balls each
circle of balls being held in two grooves formed in parallel vertical faces at the two
ends of the box whereby the box is supported and centred around the spindle
without touching same with or without the addition of collars perforated with a
number of holes to receive and retain the balls in place the diameter of such holes
being less than that of the balls all substantially as herein before described aud
represented in the accompanying drawings.
2. In an axle-box constructed as described in Claim 1 one or more supplementary
circles of balls arranged around the end of the spindle and bearing against suitably
constructed collars substantially as hereinbefore described and represented in
Figures 2 and 3 of the accompanying drawings.
Dated this 28th day of April 1896.
J. C. MEWBURN & ELLIS,
55 & 56 Chancery Lane, London, Chartered Patent Agents.