Year: 1897

page_text: I, MAX JULIUS NEHEMIAS, Merchant, at Altona, Poststrasse 4, near Hamburg,
in Germany, do hereby declare the nature of this invention to be as follows:-
The object of the present invention concerns a device destined constantly to
keep free from dirt the driving chain of bicycles.
The adjoined drawing shows the invention in natural size in perspective
manner.
A is a brace of the bicycle frame. B shows the whole cleaning devices, the
separate constituents of which are:
a is a support with the guiding-slot, 6 fastened by means of the cramp c and
the binding-screw d, fitted on the brace A. the one leading on the chain side of
the bicycle from the crank-shaft to the hind-wheel shaft.
A disk e fitted with tufts of bristles is introduced with its axis around which
it moves into the slot b and there secured in a convenient position by means of
its end, terminating in a screw thread f and a thumb-nut g. A second identical
bristle disc e¹ is secured in a similar way by screw f1 and thumb-screw g¹.
Between this pair of disks slides the chain imparting a rotatory movement to
the brush disk, in the direction as shown by the flying arrows in the sketch;
and causing the bristle-tufts to remove any dirt or dust accumulating between
the chain-links.
Instead of the broad support with a slot a staff-shaped one may be utilized in
combination with brush-axles with cramp-shaped ends.
In consequence of the adjustability of the brush-disk it is possible to regulate
them according to the unavoidable wasting of the bristles, thus allowing of a very
economical wear and tear.
Dated Hamburg 19th day of October 1897
I, MAX JULIUS NEHEMIAS, Merchant, at Altona, Poststrasse 4, near Hamburg,
in Germany, 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:-
The object of the present invention concerns a device destined constantly to

page_text: keep free from dirt the driving chain of bicycles.
The drawing filed with the Provisional Specification shows the invention in
natural size in perspective manner.
A is a brace of the bicycle frame. B shows the whole cleaning devices, the
separate constituents of which are:
a is a support with the guiding-slot, 6 fastened by means of the cramp c and
the binding-screw d, fitted on the brace A the one leading on the chainside of
the bicycle from the crank-shaft to the hind-wheel shaft.
A disk e fitted with tuits ot bristles is introduced with its axis around which
it moves into the slot and there secured in a convenient position by means of
its end, terminating in a screw thread f and a thumb-nut g. A second identical
bristle disc e is secured in a similar way by screw f¹ and thumb-screw g¹.
Between this pair of disks slides the chain h imparting a rotatory movement to
the brush disk, in the direction as shown by the flying arrows in the sketch;
and causing the bristle-tufts to remove any dirt or dust accumulating between
the chain-links.
Instead of the broad support with a slot a staff-shaped one may be utilized in
combination with brush-axles with cramp-shaped ends.
In consequence of the adjustability of the brush-disk it is possible to regulate
them according to the unavoidable wasting of the bristles, thus allowing of a very
economical wear and tear.
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. A support to be applied to bicycle-frames with a pair of adjustable rotatory
brush-discs being in contact with the driving-chain operating substantially as
described and for the purpose as set forth in the foregoing statement.
2. A rotatory pair of brush-discs for cleaning bicycle-chains, arranged in a
support adjustable one towards the other and readjustable corresponding to the
wasting of the bristles operating substantially as described and for the purpose
as set forth in the foregoing statement.
Dated Hamburg, 22nd of November 1897.