Improvements in Cycles.
Year: 1897

page_text: CUALI LETE SPECIFICATION.
Improvements in Cycles.
I, JULES BERNARDON, Engineer, of St. Pierre-le-Moutier Nievre, in the Republic
of France, 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:-
-
In cycles fitted with bevel gearing as the means of transmission of power, in
order to dispense with the chain, the pinions controlling the intermediate spindle,
are placed either inclined on the pedal axle between the crank and the balls, or
else inside the frame, and in this case the tubes terminating at the pedal bracket
are either double or are divided either in a fork or in any other manner to allow
the passage of the pinions. In both cases the pinions are covered by a thin gear
case generally metallic. These cases vibrating by reason of the gearing close to
them produce an unpleasant noise and rapidly disintegrate.
In the present arrangement the inclined position and the ordinary gear case
are suppressed and the tubes are plain and straight, quite like the usual construc-
tion without interposition of any kind.
Referring to the accompanying sheet of drawings: Fig. 1 is a horizontal section
through the back forks of a cycle constructed according to this invention; Fig. 2
is a side elevation; and Fig. 3 is a front elevation of the same.
According to this invention the pedal bracket is composed of a metallic tube
made in any manner abcdefghij enclosing the spindles and the pinions
and carrying in the proper positions all the sockets to receive the tubes forming
the cycle and in which all the parts forming the frame properly so called,
will be fixed in the usual manner by soldering or brazing.
A distinctive characteristic furthermore exists in that any portion whatever of
any shape whatever is movable at will and permits the introduction inside of the
pinions and other parts. The pedal bracket proper consists then of abcdefghi,
the sockets k l m n are arranged for the reception of the tube going to the
saddle; the tube going to the steering part; and m¹ n' forming the back fork
or frame of the cycle, in this manner the case formed by the whole of the pedal
bracket being closed by the caps o and p and the axle q it can be considered
as absolutely tight and can receive any suitable bath of lubricating substance
and furthermore as rlllll are soldered, dust or foreign materials cannot in
any case penetrate into the gearing. By applying the same principle to the back
of the cycle at sand it will be thus seen that the frame may be connected entirely
by soldered joints and consequently possess the advantages of rigidity which are
sought for in this class of machine.
The movable part is shown under the letters uv x y z; it is attached to the
pedal bracket proper by screws, bolts or other means and permits the introduction
and inspection of the parts whilst still preserving the greater possible cohesion
of the principal parts. This part uery z may be any part whatever and may
be placed indifferently in any other position with respect to the axes of the
principal part, an emptying plug and one or more lubricators ad. hoc, enabling
the lubricating material to be changed at a convenient time.

page_text: 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 cycles, a pedal bracket constituting at once a casing for the transmitting
mechanism and the joints of the tubes without interposition of any sort with a
movable part for the introduction of the moving parts and internal inspection
substantially as described.
2. The improvements in cycles arranged and constructed substantially as
described with reference to the drawings.
1008
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.