Improvements in Brakes for Road Vehicles.
Year: 1890

page_text: Date of Application, 21st Mar., 1890
Complete Specification Left, 16th May, 1890-Accepted, 21st June, 1890
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Road Vehicles.
We, CHARLES FELSTEAD, of 12 Mostyn Road, Brixton, in the County of Surrey,.
Coal Merchant, and HENRY JAMES SMITH of 2 Meadow Row, New Kent Road, in
the County of Surrey, Engineer do hereby declare the nature of this invention to
be as follows:-
Our invention relates to improvements in brakes for road vehicles, and has for its
object the attainment of a more perfect grip upon the wheels thereof, with less manual
power than occurs in the case of such brakes as hitherto constructed.
In carrying our invention into effect we employ two cross levers, with square or
round ends, connected by means of three connecting rods to one double throw crank
operated from the front of the vehicle, and one crank coupled to a foot lever or tread,
and four flanged castings are employed in connection with the cranks. and levers
above mentioned, carrying wood brake blocks for gripping the hind wheels of
said vehicles, boles being provided for setting up the wood blocks as they become
worn by use.
The chief feature of our invention consists in the flanging of the castings forming
the blocks, which, in addition to affording a better grip upon the wheels, prevents
these from coming off the axles when loosened.
The various parts may be made of any metal, and may be operated upon one side
of the vehicle, or it may be worked with two blocks only upon the front part of the
wheels.
Dated this 21st March 1890
FREDK. WALKER & HYDE,
4, Moorfields, Fore Street, London, E.C., Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Brakes for Road Vehicles.
We, CHARLES FELSTEAD, of 12 Mostyn Road, Brixton, in the County of Surrey,
Merchant, and HENRY JAMES SMITH, of 2, Meadow Row, New Kent Road, in the County
of Surrey, 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 :-
Our invention relates to improvements in brakes for road vehicles and has for its
object the attainment of a more perfect grip upon the wheels thereof with less inanual
power than is employed in the case of applying brakes as hitherto constructed.
Figure 3.
In order that our invention may be better understood, we have appended the
accompanying sheet of drawings, in which Figure 1 is a front elevation of a vehicle
to which the invention is applied and Figure 2 is a plan view of the same. Figure 3
is an elevation of the brake block and shoe, shewn detached and drawn to
a larger scale.
Figure 4 is a cross sectional view of the same upon the line A B,
In carrying our invention into effect we employ two cross bars, A A', Figures 1
and 2, pivotted at a, and provided with square or round ends b₁ to which
the brake blocks or shoes c c c c are attached. Two connecting rods d d' connect
the back members of each of the cross bars A A' to the pins of the throws of a double
throw crank e e', attached to a weigh shaft f. One of said throws e is also connected
to one of the members of a right angled crank g, by means of a connecting rod or
link h, the other member of the crank g being connected to a treadle or foot rest i
which is pivotted at j.
The brake blocks or shoes c c c c are shewn more

page_text: particularly and in detail by Figures 3 and 4. Said blocks or shoes are cast or other-
wise formed with side flanges k k¹ embracing the sides of the rim of the wheels, when the
brake is off as well as when pressed upon said wheels. A reinovable wood block, or
block of any other suitable material is fitted into a recess formed in the casting, and
retained therein by means of pins m or the like, so that it may be removed or set up
when necessary.
The chief features of our invention consists in the arrangement of levers or bars for
working the brake within a short range with a mo lerate pressure, and also the shape
and arrangement of the shoes and blocks. The various parts may be made of any
metal, and may be operated upon one side of the vehicle to which it is applied, or
may be worked with two blocks only upon one side of either the front or back.
wheels.
A spring or counterweight may be applied to any suitable part of the mechanism
hereinbefore described for the purpose of releasing the brake blocks from the wheels
when the pressure upon the treadle or foot rest is taken off.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is;
First: In brake mechanism for vehicles the combination of cross bars A A³, with a
weight shaft f, cranks eel and y, and treadle i, substantially as herein described and
shewn by the appended drawings.
Second. In brake mechanism for vehicles, as referred to in the preceding claim,
the employment of a flanged shoe and block substantially as herein described and
shown in detail by Figures 3 and 4 of the appendod drawings.
DL: 1
1000
FREDK. WALKER & HYDE,
4, Moorfields, Fore Street, London, E.C., Agents for the Applicants.