Improvements in the Construction of Brakes for all Descriptions of Vehicles and Machinery.
Year: 1897

page_text: Date of Application, 24th May, 1897
Complete Specification Left, 23rd Feb., 1898—Accepted, 24th May, 1898
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Brakes for all Descriptions of
Vehicles and Machinery.
I, JOHN COPPARD, of 207, Pentonville Road, London, N., in the County of
Middlesex, Engineer, do hereby declare the nature of this invention to be as
follows:-
I make a pulley of any suitable metal or material and make a grove in its
periphery surface of suitable form-which I attach by suitable means, to one or
more wheels of the vehicle or machinery to be acted upon: I now arrange a piece
of steel or any suitable metal-and secure one end in suitable position to the
vehicle or machinery, to the other end I attach rods cranks and levers in suitable
position, which are acted upon by the hands or feet-thus forming the brake.
In another form of brake I make a pully of suitable size and form which I
attach to the wheels by suitable means. I then attach a lever to the vehicle on
one end I fix a block of suitable form and material, to the other end I attach rods
cranks and levers-which being acted upon by the hands and feet brings the
block refered to, in contact with the pully and thus forming the brake.
Improvements in the Construction of Brakes for all Descriptions of
Vehicles and Machinery.
I, JOHN COPPARD, of 207, Pentonville Road, London, in the County of Middle-
sex, Engineer, 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:-
-
I make a pulley having a V grove on the periphery of any suitable metal or
material preferably steel-in two parts-by forming two disks Fig. 1, of equal
size, perforated in the centre I dish or bevel the outside edge, plain or corrugated
to suitable form Fig. 2. I now rivet or screw the flat surfaces of the two disks
together, the beveled parts thus forming a V grove in the periphery Fig. 3.
I now make a disk of suitable size in two parts of metal to be called hereafter
the back plate Fig. 4.
The pulley above described I attach to the wheels of vehicles in the following
manner the pulley Fig. 1, I place on one side of the spokes of the wheel encircling
the hub or stock the back plate Fig. 4, I place on the opposite side-I now pass

page_text: bolts through the holes therein Fig. 1, and Fig. 4, thus holding them securly
in position or the pulley may be secured direct on to the hub or stock by form-
ing a flange round the centre hole of the pulley Fig. 1, and using a set screw, or
screwing on to the stock or hub, thus dispensing with the back plate Fig. 4.
I now arrange a piece of steel or any suitable metal or material, curved to
suitable form one end of which b, Fig. 5, I secure in suitable position to the
frame of the vehicle-the curved part is arranged to enter the ✓ grove of the
pulley Fig. 3, and to the other end a, Fig. 5, I attach by any suitable means, one
end of a metal rod-or a piece of cat gut or cord, the other end I secure to the
cranks E, E, Fig. 5, and levers fixed in suitable positions to the vehicles are acted
upon by the hands or feet-causing the curved piece of steel or cat gut, a, b,
Fig. 5 to contract into the V grove of the pulley Fig. 3, forms the brake.
In another form of brake I use the V pulley Figs. 1-2-3 or the pulley may
be made from the solid metal, the V grove being turned therein, but in place
of the curved steel or cat gut described Fig. 5, I fix a lever Fig. 6, to the vehicle
in suitable position, on one end of said lever d, d, I fix a block made of any suit-
able material having a convex surface, at the other end of lever, d, I attach a
piece of cat gut-cord or chain F, F, Fig. 6, and running over the pullies g, g,
and being acted upon by the hands or feet forces the convex block d, d, into the
V grove Fig. 3, forms the brake.
DESCRIPTION OF DRAWINGS.
Fig. 1. A disk perforated in centre-the inner circle to outside edge denotes
the beveled corrugated part to form the V.
Fig. 2. Side view of Fig. 1, shewing the bevel.
Fig. 3. Two disks Fig. 1, bolted together and forming the V pulley in which
the curved piece of steel or other material a, b, Fig. 5, acts producing the brake
power.
Fig. 4. Back or fish plate perforated and which secures the pulley Fig. 3, to
the wheel.
Fig. 5. The pulley shewing the mode of connecting the curved piece of steel a, b,
with cranks E, E and rods F, G.
Fig. 6. The pulley Fig. 3, with block, d, d, and lever, d, connected, and acted
upon by gut cord or chain F, F, and working on rollers, g, J.
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:-
1st. The V grove in the pulley and the mode of making the pulley as described.
2nd. The mode of fixing the pullies, cranks and rods to vehicles.
3rd. The lever d and d, d, and the gut cord or chain and working on pullies
and mode of fixing, same to vehicles as described.
Dated this 23rd day of February 1898.