Improvements in Brakes for Railway Wagons and other similar Vehicles.
Year: 1898

page_text: Date of Application, 5th July, 1898
Complete Specification Left, 25th Jan., 1899-Accepted, 11th Mar.,
1899
PROVISIONAL SPECIFICATION.
Improvements in Brakes for Railway Wagons and other similar
Vehicles.
I, EDWARD WARNER, of 73, Billing Road, Northampton, Engineer, do hereby,
declare the nature of this invention to be as follows:-
This invention is in connection with the construction of such a hand brake for
railway wagons or other similar vehicles as can be operated, that is, put on or
taken off by hand from either side of the wagon. To accomplish which a shaft
is placed across the wagon framing a little below the middle cross bearer, and to
this cross shaft is attached a hand lever on each side of the wagon. Between one
only of these side hand levers, namely, that on the side where the brake work is
at present fixed and the lever on the brake shaft there is placed a connecting
link, or pull rod, so that whenever either of the side levers are moved up or
down it moves the lever on the brake shaft, or brake spindle, and that again
moves the brake blocks to or from the wheels. It follows then that by lifting
and lowering of the hand lever on either side of the wagon the brake blocks are
put on or off the wheels.
My invention consists in fixing a curved rack upon the end of one of the side
levers, the circular form of which is struck according to the radius from the
centre of the cross shaft, and in conjunction with this rack a combined hook and
pawl, the hook part falling under the rack when the lever is lifted up thus sup-
ports the lever and keeps the brake off and the pawl part entering the teeth of
the rack as the lever is lowered and forced down to apply the brake keeps the
brake applied as long as required. This combined hook and pawl is operated by
a small handle on each side of the wagon the two handles being connected by a
rod which goes across the wagon framing by which this supporting hook and
pawl can be put in or out of gear with the rack as easily on one side of the wagon
as on the other. My invention also consists in putting a bell crank end upon
the hand lever on the present brake side of a wagon and altering the brake lever
now upon a wagon from the horizontal position to a vertical one. This I do to
save the alteration of the brake push rods and also of the brake shaft, or spindle,
and between the top end of this vertical brake lever and the end of the bell crank
I put the connecting link or pull rod afore mentioned.
July 4th 1808

page_text: formed, to be particularly described and ascertained in and by the following
statement;
-
My invention is in connection with the construction of such a hand brake for
railway wagons, or other similar yehicles, as can be operated by hand from either
side of the wagon. To accomplish which a shaft is placed across the wagon
framing a little below the cross-bearer, and to this cross shaft is attached a hand
lever on each side of the wagon. Between one only of these side hand levers,
namely, that one on the side where the brake work is at present fixed, and the
lever on the brake shaft there is placed a connecting link, or pull rod, so that
whenever either of the side levers are moved up or down it moves the lever on
the brake shaft or brake spindle, and that again moves the brake blocks to or
from the wheels. It follows then that by lifting or lowering of the hand lever
on either side of the wagon the brake blocks are put on or taken off the wheels.
My invention consists in fixing a curved rack upon the end of one of the side
hand levers, the circular form of which is determined according to the radius
from the centre of the cross-shaft, and in conjunction with this rack a combined
hook and pawl, the hook part of the pawl falling under the rack when the hand
lever is lifted up, it thus supports the lever and keeps the brake off, and the pawl
part entering the teeth of the rack as the lever is lowered and forced down to
apply the brake keeps the brake applied as long as required.
This pawl is made of such a form as to act as a guide for keeping the brake
lever in its right position when it is being worked up and down and to save the
ordinary guide to the brake lever.
This combined hook and pawl is operated by a small handle on each side of
the wagon the two handles being connected by a rod which goes across the wagon
framing by which this supporting hook and pawl can be put in and out of gear
with the rack as easily on one side of the wagon as on the other.
My invention also consists in putting a bell crank end upon the hand lever on
the present brake side of a wagon and shortening the brake lever now upon a
wagon and altering it from the horizontal position to a vertical one. This I do
to save an alteration of the present brake push rods and also of the present brake
shaft, or spindle, and between the top end of this vertical brake lever and the
end of the bell crank I put the connecting link or pull rod afore mentioned.
In order that my said invention and the way in which I purpose carrying the
same into effect may be fully and clearly understood, reference is hereinafter made
to the accompaning sheet of drawings of which
Fig. 1 is a side elevation of a railway wagon fitted with a hand brake having
my brake improvements attached or added thereto.
Fig. 2, is of the other side of the wagon showing the hand lever also the small
handle attached to the pawl.
Fig. 3, is a plan of the wagon showing the hand lever on each side the cross
shaft and cross rod which is attached to the pawl.
Fig. 4, is a vertical elevation of the rack and the pawl upon an enlarged scale
and the
Fig. 5 is a plan of the same.
A is the rack which I attach to the hand lever B.
C is the pawl with its handle 2 as shown.
The pawl C has cheeks as shown in Figs. 4 and 5 between which the rack A
works up and down and these keep the rack and hand lever in their right posi-
tion and save the ordinary brake lever guard.
D) is the bell crank upon the hand lever B between which and the brake lever E
on the rocking shaft the link or pull rod F is attached.
The cross-shaft G and the cross-rod H are put to pass at each end through
modified spring shoes to save additional bolts and brackets.
To apply the brake the handle 2 of the pawl C is lifted which lets the rack 5
and lever fall and when being forced tightly down the pawl C being overbalanced

page_text: by its handle 2 engages the rack in the manner shown in Fig. 4 and keeps the
brake on.
When the brake is off the wheels the hand lever B is in the position shown
in Fig. 1 with the bottom of the rack A resting in the inside of the pawl C, and
when the brake is applied the position of the hand lever B and the pawl C rela-
tively are as shown in Fig. 4.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
1 claim is:
1st the attachment of a rack of the design A shown in Figs. 1 and 4 to the
hand lever B of the brake for the purpose described and set forth.
2nd a pawl of the design C as shown in Figs. 1 and 4 so arranged that it will
keep the brake on or off as it may be required in the way described.
3rd a combination of the rack A with the pawl C so placed to one another as
shown in Figs. 1 and 4 and for the purpose described.
4th a combination of the vertical lever E on the brake rocking shaft with the
bell crank D on the hand lever B connected by the pull rod F as shown in Fig. 1
and for the purpose described.
Dated this 24th day of January 1899.
EDWARD WARNER.