An Improved Locking Brake for Vehicles.
Year: 1893

page_text: Date of Application, 21st Aug., 1893-Accepted, 23rd Sept., 1893
COMPLETE SPECIFICATION.
An Improved Locking Brake for Vehicles.
We, ROBERT GEORGE MORSE, of Knight's Road, Victoria Docks, Essex,
Foreman Horse Keeper, and EDWARD BECKLEY, of 17 Croydon Road, Barking
Road, Canning Town, Essex, Foreman Brass Finisher 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 :-
This invention refers to foot brakes for vehicles, that is to say to brakes operated
by the foot of the driver, and is designed to relieve the driver from the necessity of
keeping his foot pressed down on the brake lever in order to keep the brake on the
wheel, also that horses may be left with less danger of running away when the
driver leaves the seat. It contains an arrangement of levers, springs, pawl and
rack and other parts whereby the brake can be readily applied and locked in
position by the action of the foot only, while it can be readily unlocked and taken
off the wheel by the same agency.
We will now describe the invention with reference to the accompanying drawings
in which
Fig. 1 shows a side elevation of our pedal brake in position ready for use.
Fig. 2 shews a similar view to Fig. I in the position when brake is locked on to
the wheel.
Fig. 3 shews a plan view.
a is the small footplate for operating the locking mechanism. This footplate is
pivotally connected at 6' to a lever b, which is pivotted at to the ordinary pedal
lever d alongside.
d is the ordinary pedal lever for brakes, and has at its end a large footplate d'.
e is an enlarged end of lever b which presses against a small pillar finside which
is a spiral spring f'. 9 is a curved arm, the lower end of which forms pawl h.
This arm g and pawl h are pivotted at h¹ to a cross arm i which is in its turn
pivotted at j to stand k.
i is a cross arm which when pressure is applied to pedal lever d elevates the
pawl h to any desired point on the ratchet quadrant 1. j is a centre pin carrying
pedal lever d and arm i.
k is the stand which carries the mechanism and is provided with screw holes k¹
for fastening same to any firm foundation. is the ratchet quadrant. m is a small
lug on lever d serving to operate arm i. n is the chain or rod leading to the brake.
o is a powerful spring on the brake rod or chain.
The action of our brake is as follows :-
The small footplate a is connected to the lever band when pressed down,
brings the pawl at once into gear with quadrant l, and at the same time presses
down the large footplate d' and by means of pedal lever d elevates the armi with
the pawl h. The pawl h at once engages with the teeth of quadrant / and the foot
pressure being removed from footplates a and d' the spring o causes the pawl / to
become locked into the teeth of land so operate the brake. When the brake is to
be taken off the wheel, the foot is placed on the footplate d' only and thus throws
the pawl h out of gear, when the contraction of spring o causes the mechanism to
return to its original position.
The operation of spring fis as follows:-
When the footplate a is pressed down the paw! his thrown into gear with the
teeth of quadrant and when the pawl is elevated, the jar thereof in its passage up
the quadrant causes a slight backward movement of the pawl at every tooth,
which raises a small rod p' in pillar f by its coming into contact with the end e of rod b.
This small rod carries a spiral spring f which returns the rod p³ to its proper
037

page_text: position after it has been pressed out of place by teeth of quadrant l. It will thus
be seen, the purpose of spring f' is to prevent jarring the driver's foot when he is
adjusting the brake.
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. A footbrake for vehicles with double footplate and lever arrangement, 80
contrived as to lock the brake on the wheel at the will of the driver, and to unlock
and remove the same when required, as herein described and set forth.
2. In a locking footbrake for vehicles the footplates a, d¹, the levers b, d, the
pillar farms g, i, pawl h, stand & ratchet quadrant rod or chain n and springs of*,
as herein described and set forth.
Dated this 21st day of August 1893.
S. S. BROMHEAD,
97, Newgate Street, E.C., Agent for Applicants.