Improvements in Bearings for the Axles of Mining and other Waggons.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Bearings for the Axles of Mining and other
Waggons.
1, ARTHUR KOPPEL, of 32, Dorotheenstrasse, Berlin, in the German Empire,
Manufacturer, do hereby declare the nature of this invention to be as follows :-
This invention relates to improvements in roller bearings and axle boxes for the
axles of mining waggons and the like, the said bearings being provided with an
exchangeable middle portion whereby they can be used for tracks of different gauge
and can be rendered completely dust-tight.
According to my invention the rollers are arranged in the usual manner round the
axis of the waggon and are held in position by the axle boxes. The said axle boxes
are open at their inner ends whilst at their outer ends they are bored to receive the
axle. The two axle boxes of one axle are connected together by means of tho
middle portion which consists of a tube surrounding the axle and provided at each end
with a screw-thread whereby it can be screwed into the axle boxes. This tube serves
as a common oil reservoir for the two bearings and each end of the said tubo rests
against a ring in the interior of the axle box, whereby the rollers are prevented from
moving longitudinally. The other ends of the rollers are in contact with an inwardly
projecting flange in the axle box.
To render the axle box dust-tight a ring of felt or cloth is placed in the inwardly
projecting edge of the boss of the wheel and over this ring the end of the axle box
passes.
The tube can be exchanged for another tube of desired length so that the same
arrangement can he used for tracks of difforent gauge.
MILETE FECIFICATION.
Improvements in Bearings for the Axles of Mining and other
! Waggons.
I, ARTHUR KOPPEL, of 32, Dorotheenstrasso, Berlin, in the German Empire,
Manufacturer, 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 roller bearings and axle boxes for the
axles of mining waggons and the like, the said bearings being provided with an
exchangeable middle portion whereby they can be used for tracks of different gauge
and can be rendered completely dust-tight.

page_text: In the accompanying drawing,-
Figure 1 is a sectional elevation of a wheel and axle mounted in bearings constructed
according to my invention.
Figuro 2 is a transverse section through a bearing.
The rollers are arranged in the usual manner round the axle a of the waggon and
are held in position by the axle boxes c. The said axle boxes are open at their inner
ends whilst at their outer ends they are bored to receive the axle. The two axle
boxes of one axle are connected together by means of the middle portion which
consists of a tube or drum d surrounding the axle and provided at each end with a
screw-thread whereby it can be screwed into the axle boxes. This tube serves as a
common oil reservoir for the two bearings and each ond of the said tube rests against
a ring in the interior of the axle box whereby the rollers are provented from
moving longitudinally. The othor ands of the rollers are in contact with an inwardly
projecting flange in the axle box.
To render the axle box dust-tight a ring of felt or cloth is placed in the inwardly
projecting edge of the nave of the wheel and over this ring the end of the axle box
..passes.
The tube d can be exchanged for another tube of desired length so that the same
arrangement can be used for tracks of different gauge.
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 bearings for the axles of mining and other waggons the employment of a
tubular exchangeable drum which is screwed into the axle boxes and forms with the
latter, by means of packing rings, a closed oil reservoir extending from nave to nave
of the wheels for the purpose of adapting the bearings and wheel naves to tracks of
different gauge, substantially as described and illustrated.
2. The improvements in bearings for the axles of mining and other waggons
herein before described and illustrated in the accompanying drawings.
Dated this 22nd day of January 1897
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.