Improvements in or connected with Brakes for Road Vehicles.
Year: 1889

page_text: Date of Application, 30th Jan., 1889
Complete Soecification Left, 30th Oct., 1889-Accepted, 30th Nov., 1889
PROVISIONAL SPECIFICATION.
Improvements in or connected with Brakes for Road Vehicles.
I, THOMAS RICHARD DEVEREUX BINGHAM, of Wartnaby Hall, Melton Mowbray in
the County of Leicester, Retired Captain Bengal Lancers, do hereby declare the
nature of this invention to be as follows:-
The object of my invention is to construct brakes, for road vehicles having two
or four wheels, of simple form, and wherein as applied to four wheel carriages the
brake power is applied gradually by one segment being caused to act before the
other.
The brake block is carried by a segmental piece stiffly jointed to a lever, the
lower end of which is fulcrummed on a bracket arm fastened to or proceeding from
the main axle. This lever extends upwards and when the brake is applied to a
two wheeled vehicle this lever is carried up and operated by the driver. The
segmental piece is jointed to the lever in order to allow of the brake block acting
with an even pressure and adjusting itself on the brake drum throughout its surface.
Instead of the stiff joint the piece may be loosely jointed and supported by a
spring or stop. The brake drum may be formed on the hub of the wheel or be fixed
thereto.
A segmental piece similar to that before described may be applied in a similar way
to the opposite side of the brake drum with this difference, that the lever having to
act in the reverse way to the other, has its fulcrum above the joint of the segmental
piece instead of below same.
When this double brake is used the upper ends of the two levers aro linked together
and connected by a rod to a convenient handle for operating. The connecting link
should be provided with a lost motion, so that in applying the brake one block comes
into action before the other, such an arrangement being particularly applicable for
omnibusses and other heavy traffic.
Data the DAIL
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COMPLETE SPECIFICATION.
Improvements in or connected with Brakes for Road Vehicles.
I, THOMAS RICHARD DEVEREUX BINGHAM of Wartnaby Hall, Melton Mowbray, in
the County of Leicester, Retired Captain Benga! Lancers 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 :-
The object of my invention is to construct brakes for road vehicles having
two or four wheels, of simple form, and wherein as applied to four wheel carriages
the brake power is applied gradually by one segment being caused to act before the
other.
In order that my invention may be fully understood I will proceed to describe same
with reference to the accompanying drawings.
Figure 1 is an elevation of a two wheeled vehicle shewing my invention applied
thereto.
Figure 2 is a part side elevation of a brake similar to that shewn at Figure 1 but
drawn to a larger scale and detached from the carriage.
Figure 3 is a plan of Figure 2.

page_text: Figure 4 is a side elevation of a brake constructed according to my invention
having two brake blocks, and
Figure 5 is a side elevation illustrating my invention as arranged for two brake
blocks, one of which comes into contact with the brake drum prior to the other.
Similar letters of reference refer to like parts in all the Figures.
The brake block. A is carried by a segment piece B stiffly jointed to a lever C
the lower end of which lever C is fulcrummed on a bracket arm D secured to or
proceeding from the main axle of the carriage. The lever extends upwards and
when the brake is applied to a two wheeled vehicle this lever C is carried up and
operated by the driver. The segmental piece B is jointed to the lever in order to
allow of the brake block acting with an even pressure and adjusting itself on the
brake drum E throughout its surface. Instead of making the joint between the
segmental piece B and the lever C stiff it may be supported by a spring or stop.
The brake drum E may be formed on the hub of the wheel or it may be fixed
thereto.
Two segmental pieces B B' may be applied to the drum as shewn at Figures 4
and 5. In Figure 4 the lever Chas its fulcrum above the joint, with the piece B
below it, and above the fulcrum the lover C has a connecting bar F to a segmental
piece B so that on the lever C being turned on its fulcrum both segments come into
contact with the drum E.
The arrangement shewn in Figure 5 is similar to that in Figure 4 except that
one brake is applied before the other. This result is obtained by means of the
joint pin connecting the rod F and lever C travelling in a slot (2 in the said
lever and the slot C2 is so formed that on the lever C being moved in the
direction of the arrow, the connecting rod F will be actuated and the brake block A¹
will be applied to the drum E.
The brake block A is situated at a greater distance from the drum E than the
brake block A¹ and when the brake block A¹ is in contact with the drum E the
pin will be at the commencement of the radial portion of the slot C2. If it is
desired to apply more brake force than is to be obtained by the action of the
block A' then the lever C is moved to a greater degree in the direction of the said
arrow and this being allowed for by the pin travelling in the radial portion of the
slot C² the block A¹ will still be held full on while at the same time the block A will
be brought into contact and will bear on the drum E. DI is a stop pin fixed into the
bracket and is to prevent the lifting of the end of the connecting rod F. Instead of
slotting the lever at (the end of the rod F may be slotted.
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 -
1. The combination of the brake block A, segmental piece B, lever and drum E
all arranged and acting substantially as and for the purposes set forth.
2. The combination of the brake blocks A A', segmental pieces B B¹, levers C, C",
connecting rod F all arranged and acting substantially as and for the purposes set
forth.
3. The combination of the brake blocks A A, segmental pieces B B, levers C, C,
connecting rod or bar F, slot C³ in lever C or in end of rod F, stud D', on bracket D
and drum E whereby the brake block A' is first brought into action and by a further
motion of the brake lever the second block A. is also brought to bear on the said drum E
all substantially as described and illustrated with particular reference to Figure 5 of
the accompanying drawings.
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