A New or Improved Cover or Case for the Chain Gear of Velocipedes.
Year: 1892

page_text: Date of Application, 8th Dec., 1892
Complete Specification Left, 5th May, 1893-Accepted, 10th June, 1893
PROVISIONAL SPECIFICATION.
A New or Improved Cover or Case for the Chain Gear of
Velocipedes.
We CHARLES WILLIAM BLUEMEL, ERNEST ADOLPHUS BLUEMEL and
FRANK HENRY BLUEMEL trading as C. W. Bluemel and Bros. of Crown Works
Rose Place Globe Road London Manufacturers do hereby declare the nature of
this invention to be as follows:-
Our invention relates to a new or improved cover or case for the chain gear of
velocipedes which can be readily detached, adjusted or fixed in position, is light in
construction and will not produce any rattling as generally occurs with the gear
covers hitherto used.
In carrying our invention into practice we provide a plate of xylonite celluloid
metal, or any suitable material surrounded with a rim or Hange, and furnished with
a circular perforation at one end, through which, the end of the rear wheel axle
protrudes when the cover is in position, and another similar perforation at the other
or front end of the gear cover to receive the pedal crank, this last mentioned end
of our improved gear cover being moreover furnished with a pin terminating in a
screw thread-a small portion is cut away from the aforementioned rim or flange
of the gear cover to take the rear fork of the velocipede.
We further provide a clip formed of a split ring having two flanges or lugs one
at each end, these lugs having a hole pierced through them to receive the pin
aforesaid. This clip is placed astride over the bottom tube of the velocipede and
secured thereto by the aforementioned pin being passed through the holes in the
lugs and secured by a nut, the gear cover is thus fixed at one end, while it is fixed
at the other end by a nut placed on the end of the rear wheel axle which is screw
threaded for this purpose.
We further provide our gear cover with a back of any soft material such
as leather, American cloth, canvas or the like, (so cut away as to take the
parts of the velocipede) and which may be affixed to the gear cover proper by
any suitable means or we may form this back of the same material as the cover
itself.
We do not restrict ourselves to materials, dimensions, or to the shape of the
perforations above referred to.
Dated this 5th day of December 1899
COMPLETE SPECIFICATION.
A New or Improved Cover or Case for the Chain Gear of
Velocipedes.
We CHARLES WILLIAM BLUEMEL ERNEST ADOLPHUS BLUEMEL and
FRANK HENRY BLUEMEL trading as C. W. Bluemel & Bros. of Crown Works,
Rose Place Globe Road, London, Manufacturers, do hereby declare the nature of
Price 8d.1

page_text: this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
Our invention relates to a new or improved cover or case for the chain gear of
velocipedes which can be readily detached, adjusted, or fixed in position, is light in
construction, and will not produce any rattling as generally occurs with the gear
covers hitherto used.
In carrying our invention into practice we provide a plate of xylonite or celluloid
or such like material surrounded with a rim or flange, and furnished with a circular
perforation at one end, through which the end of the rear wheel axle protrudes
when the cover is in position, and another similar perforation at the other or front
end of the gear cover to receive the pedal crank-this last mentioned end of our
improved gear cover being moreover furnished with a pin terminating in a screw
thread a small portion is cut away from the aforementioned rim or flange of the
gear case or cover to take the rear fork of the velocipede.
We further provide a clip formed of a split ring having two flanges or lugs one
at each end, these lugs having a hole pierced through them to receive the pin
aforesaid. This clip is placed astride over the bottom tube of the velocipede and
secured thereto by the aforementioned pin being passed through the holes in the
lugs and secured by a nut, the gear cover is thus fixed at one end, while it is fixed
at the other end by a nut placed on the end of the rear wheel axle which is screw
threaded for this purpose.
We further provide our gear cover with a back of any soft material such as
leather, American cloth, canvas or the like so cut away as to take the parts of the
velocipede, and which may be affixed to the gear cover proper by any suitable
means or we may form this back of the same material as the cover itself.
In the accompanying sheet of drawings illustrating our invention
Fig. 1 represents an inside view of our improved cover or case with the back
detached.
Fig. 2 being a similar view with the back in position.
Fig. 3 is a cross section on line c, c of Fig. 1.
Fig. 4 is a top or edge view of the said cover or case, and
Fig. 6 is a horizontal section thereof.
a is the cover or case formed with a flanged rim or edge a¹ all round it. 6 is
a perforation or hole formed in the side thereof for the passage of the pedal
crank axle and b¹ is an elongated opening or slot through which the end of the
rear wheel axle d protrudes.
The front end of the case is furnished with a pin e threaded at its outer end to
receive two nuts f, f1 and a small portion of the said flange or rim is cut away at g
to receive the rear fork of the machine. is a split ring or clip provided with two
lugs perforated to receive the aforesaid threaded pin c. This ring clips the
bottom tube of the velocipede and is tightly secured thereto by means of the
nuts, thereby supporting and securely fixing the front end of the case a to
the said tube i. The other end of the case is supported by the axle of the rear
wheel to which it is firmly secured by a nut k screwed on the end of the said axle.
I is a back formed of leather or other suitable material and fastened to the cover
by means of studs m fixed to the rim a' and steel strips n perforated as shown in
Fig. 4 to receive and be locked by the said studs, the overlapping edges of the
back being formed with eyelets through which the studs m pass. The back / is
cut or slit a 1, 2 for convenience in removing or fixing it to the cover. These slits
are covered by flaps 13, 14 one edge of which is laced to the back as shown in Fig. 2,
so that by unlocking the strips n the cover can be readily removed.
o is a small
opening formed in the back for the purpose of receiving the small crosspiece p
connecting the horizontal bars p' of the frame.
i
The case or cover a may be further secured by means of a screwed pin or bolt r
passing through the case and fastened by means of a clip or plates to the
horizontal harml
4

page_text: 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 improved cover or case for the chain gear of velocipedes substantially as
shown and described.
F. G. CASSELL,
Of Cassell & Co.,
22, Glasshouse Street, Regent Street, Agent for the Applicants.