IMPROVEMENTS IN THE CONSTRUCTION OF Two-WHEELED VEHICLES FOR THE CONVEYANCE OF PASSENGERS OR GOODS ON COMMON ROADS
Year: 1872

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and
Foreign Patent Offices, 18, Rue de la Ohaussée d'Antin, Paris,
France, and 6, Piccadilly, in the County of Middlesex, Patent
Agent, for the Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
Two-WHEELED VEHICLES FOR THE CONVEYANCE OF PASSENGERS OR GOODS
ON COMMON ROADS." -A communication from Silvain Foubert,
residing at St. Omer, France, Householder.
Sealed the 26th July 1872, and dated the 15th May 1872.
COMPLETE SPECIFICATION filed by the said Henri Adrien Bonnevillo
at the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 15th May 1872, pursuant to the 9th Section of
the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 18,
Ruo de la Chaussée d'Antin, Paris, France, and 6, Piccadilly, in the
County of Middlesex, Patent Agent, send grecting.

page_text: of the mechanism in Fig. V. L is a lever fulcromed on the bolt fixed
in one of the rollers h. One end of this lever is provided with a break
block, which presses against the wheel when the body of the vehicle is
shifted backward on the framework, and is held by a strap passing under
the body K; 1,1, are the wheels; m, the cranked axletree; n, n, springs;
o, o, the shafts; p, the step; q, the seat.
of the mechanism in Fig. V. L is a lever fulcromed on the bolt fixed
in one of the rollers h. One end of this lever is provided with a break
block, which presses against the wheel when the body of the vehicle is
shifted backward on the framework, and is held by a strap passing under
the body K; 1, 1, are the wheels; m, the cranked axletree; n, n, springs;
o, o, the shafts; p, the step; q, the seat.
Fig. III. is a plan view from underneath of a cart to which the
improved mechanism is applied.
Fig. IV. is a longitudinal elevation of the said improved mechanism
as applied to a cart.
As above described, a is the crank; b, the bevil wheel; c, the pinion;
d, the endless screw; e, its nut fixed to the cross piece ƒ by the rods g;
h, h, are the iron slotted pieces or slides; i, i, are rollers; j, cross piece
fixed to the ends of the springs behind, and on the ends of which the
rollers are mounted; k, k, are levers fixed by one end to the cross
piece 2, and strapped at the other end to the bottom of the vehicle;
Z is a cross piece moving in the slides m, and provided at each with
breaks which come in contact with the wheels when the body of the
vehicle is shifted backwards; n is a cross piece at the bottom of the
body of the vehicle; o, o, the wheels; P, P, springs; q, axletree.
Vehicles on the improved principle may also be made with three or
four springs. If constructed with four springs two of the springs form
part of the body of the vehicle and the shafts, and are placed crosswise
under the former and their ends fixed to the shafts.
This new and improved mechanism may be worked without labour,
and without obliging the driver of the vehicle to leave his seat, by
placing the crank in front or at the side of the driver. The load may
be shifted backwards at will and the breaks tightened instantaneously.
The horse is thus so much relieved in going down steep inclines that it
cannot fall even when going at a rapid pace, which so frequently occurs
with ordinary vehicles.
By means of these improvements horses last longer, steep inclines
may be descended without decrease in speed, and a saving of time is
effected. Besides the load can always be placed in perfect equilibrium
without changing its position in the vehicle.

page_text: Having thus described the nature of the said. Invention, and the
manner of carrying it into effect, I claim and desire to secure by Letters
Patent, the construction of two-wheeled vehicles, the body and shafts of
which may be shifted on the framework in order to change the bearing
of the load or place the same in equilibrium by means of a mechanism
such as above described and represented in the accompanying Drawings
or its equivalent.
In witness whereof, I, the said Henri Adrien Bonneville, have
hereunto set my hand and seal, this Fourth day of May, in the
year of our Lord One thousand eight hundred and seventy-two.