Improvement in Car Brakes.
Year: 1898

page_text: · Date of Application, 15th Feb., 1898-Accepted, 19th Mar., 1898
Improvement in Car Brakes.
I, JESSIE THEOBLOUR DAVIS, residing at Booneville, in the County of Prentiss and
State of Mississippi, United States of America, Gentleman, 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 :-
My invention has relation to improvements in car brakes, and the object is to
simplify and improve the construction of the brake and at the same time increase its
effectiveness. To these ends the novelty consists in the construction, combination
and arrangement of the same as will be hereinafter more fully described and
particularly pointed out in the claim.
In the accompanying drawing, the same reference characters indicate the same
parts of the invention.
Figure 1 is a side elevation of a car truck showing my improved brake in position ;
Figure 2 is a longitudinal section of the same;
Figure 3 is a top plan view;
Figure 4 is a bottom plan view.
1 represents the truck bolster, and near its outer ends are secured the shoes 2-2,
formed with depending ears 3-3 between which is centrally fulcrumed a rock lever 4,
in the opposite free ends of which is pivoted the lower end of the links 5 and 6.
The upper end of the link 5 is connected to the inner end of a strap 7, which
extends over the top of the wheel 8 to a point on the opposite side, approximately in
the same horizontal plane as the lever 4, and its outer end is formed with a transverse
eye 9, in which is pivoted one end of a rod 10, which passes through a guide
bracket 11. Its opposite end is pivoted in the outer end of the shorter arm of the
brake lever 12, which is fulcrumed on a projecting stud 13 on the face of the
rock-lever 4.
A second rod 14 is pivoted to the shorter arm of the brake lever 12, and it passes
through a guide bracket 18, its outer end engaging an eye 15 of the strap 16, which
extends around the top of the wheel 17, its inner end being pivoted to the upper end
of the link 6 on the rock-lever 4.
The inner end of the brake lever 12 passes through a guard 19 secured to the
bolster, and its free end is pivoted to the brake-rod 20, which may be operated in the
usual manner by hand or power, as desired.
The straps 7 and 16 are of spring steel, and are formed with a series of slots 21,
which receive the eyes 22 of the sectional brake-shoes 23, secured to the inner face of
the strap by a spring rod 24, which passes through said eyes 22 to detachably secure
said sectional brake shoes in position.
Although I have specifically described the construction and relative arrangement
of the several elements of my invention, I do not desire to be confined to the same, as
such changes or modifications may be made as clearly fall within the scope of my
invention without departing from the spirit thereof.
Having now particularly described and ascertained the nature of my said inven-

page_text: tion, and in what manner the same is to be performed, I declare that what I
claim is:
A car brake, comprising the rock-lever 4, the links 5-6, secured to the opposite
ends thereof, the straps 7 and 16 connected at one end to said links and provided with
the slots 21, the sectional brake shoes provided with the eyes 22 extending through
said slots, and detachably secured to said straps by the spring rods 24, the rods 10-14
connected to the outer ends of said straps and passing through guide brackets 11-18,
and having their inner ends secured to the shorter arm of the brake-lever 12, said
lever being fulcrumed on a stud 13 on the face of the rock-lever 4, substantially as
shown and described.
Dated this 15th day of February 1898.
WHEATLEY & MACKENZIE,
40, Chancery Lane, London, W.C., Agents.