Improved Brake Apparatus for Vehicles, such as Railway Wagons and the like.
Year: 1899

page_text: Date of Application, 10th June, 1899
Complete Specification Left, 12th Mar., 1900-Accepted, 14th Apr., 1900
Date of Application, 10th June, 1899
Complete Specification Left, 12th Mar., 1900-Accepted, 14th Apr., 1900
PROVISIONAL SPECIFICATION.
Improved Brake Apparatus for Vehicles, such as Railway Wagons
and the like.
I, HAYDON PARKER, of 54, Avenue Road, Forest Gate, in the County of Essex,
Assistant Manager of Railway Carriage Department, do hereby declare the nature
of this invention to be as follows:-
This invention relates to improved brake apparatus for vehicles such as rail-
way wagons, and is so constructed that the brake can be quickly and conveniently
put on or taken off by one movement of a lever arm on either side of a wagon.
It can be taken off from either side irrespective of the side on which it has been
applied. The lever arms on either side work in unison with each other through
a transverse shaft.
In one form I provide a transverse shaft at or near the end of the wagon, having
a lever arm rising from it on either side of the wagon. At one end of a hori-
zontal lever connected at the other end to one of the brake blocks I employ
a guide, corrugated, or otherwise so made as to engage securely with an operat-
ing handle attached to or forming part of the rising lever arm. The horizontal
lever has another lever connected to it at a point about midway between the
wagon wheels, the other end being connected direct to the other brake block
These two levers form together what is known as a toggle joint.
When the brake is off the rising lever arms are in a vertical position one
operating handle at rest in or in about the centre of the guide and holding up
the horizontal lever. On the opposite side of the wagon nothing is required but
the rising lever arm and a suitable handle. By moving the rising lever arms
radially to the right or to the left the toggle joint is depressed thereby applying
the brake blocks to the wheels.
In another form I extend both levers beyond the toggle joint in such manner
that the extensions form a guide in about the centre of the wagon. In this
case the transverse shaft and its connections are also in about the centre of the
wagon, and the rising lever arms work radially to the right or to the left and
operate the toggle joint as already described.
In still another form I employ the ordinary brake work used for applying the
brake on one side of a wagon only, or on both sides, and add the guide to the
end of the horizontal lever, operating the brake from either side by means of
the rising lever arms and transverse shaft as already described.
The rising lever arms may in each case be made to work in one direction only
instead of to the right and left.
Necessary adjustment for the brake blocks to the wheels is provided in each case.
Dated this 9th day of June 1899

page_text: Improved Brake Apparatus for Vehicles, such as Railway Wagons
and the like.
I, HAYDON PARKER, of 54, Avenue Road, Forest Gate, in the County of Essex,
Assistant Manager of Railway Carriage Depot, 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, statéinent:-
This improved brake apparatus for vehicles such as railway wagons and the
like is so constructed that the brake can be quickly and conveniently put on or
taken off from either side of the wagon and be taken off from either side of the
wagon irrespective of the side from which it had been put on.. The operation
of applying or releasing the brake is effected by one movement of a lever handle
from either side of the wagon,. one such lever handle being fitted, or formed on
cach end of a cross shaft at or near one end of the wagon; one of the lever
handles operates with the end of a long brake lever to which the brake gear is
connected said long lever being in some cases the socalled "horizontal lever
which is mounted on the socalled "brake-shaft" that carries the short levers
which are connected to the push rods carrying-the brake blocks. This long lever
is in all cases at its. outer end provided with corrugations that is to say rather
shallow rounded teeth forming a rack wherewith engages a stud or tooth on the
aforesaid lever handle on that side of the- wagon. Or vice versa the long lever
may be provided with a stud or tooth which engages with corrugations forming
a tooth rack on the lever handle. This rack in either case affords facility.for
taking up the wear of the blocks as in the case of the ordinary tooth or pin
rack fixed to the underframe which latter rack my invention does away with. i
Fig. 1 of the accompanying drawing is a side view and Fig. 2 an end view
showing the invention applied to- the ordinary brake gear used for braking-the
wheels on one side of a wagon only, (or on both sides) and in connection with
the usual long brake lever A fixed on the brake shaft F upon which are fixed
the usual short levers G whereto the push rods H carrying the brake blocks I
are connected.. The long lever A is at its outer end provided with corrugations A¹
which occupy such a length as to suit the varying positions of the brake lever
according to the wear on. the brake blocks I. The cross shaft B mounted in
hangers or brackets from the wagon underframe below this toothed or corrugated
end of the long lever A is at each end formed or fitted with an operating lever
or a lever handle C which in the "off" position is in a more or less upright
position as shown. The lever handle C on the side shown in Fig. 1 is provided
with a stud or tooth 1) which is adapted to engage with the corrugations.A
When a lever handle C is turned into a more or less horizontal or down position
the stud or tooth, D will engage with one rounded tooth A after the other, the
long lever A rising and falling sufficiently at each corrugation or tooth A¹, the
elasticity of the long, lever A, and the necessary slight slackness of the several
joint pins in the levers G and push rods H permitting this slight elastic yielding
action. At the same time I find as a practical result that while the tooth
engagement will keep the brake securely in the "on" position in spite of the
severe shocks and oscillations incident, to. the ordinary rough usage of railway
wagons, yet the holding power can be overcome and the brake put into the
off"
position (or vice versa the "on" position) by a pull or push on one of the lever
handles. The absence, of any special device for locking the gear in the "
position (which device usually has to be unlocked first) is a great advantage in
itself, and still more so when as by my invention the whole apparatus is rendered
on
"

page_text: simpler and cheaper. Another advantage is that as aforesaid facility is afforded
for progressively taking up the wear on the brake blocks. E
a stud or pro-
jection arranged laterally on the lever C that is to say on one side of the centre
line for the purpose of supporting and carrying up the long lever A when the
latter is raised for taking the brake off. By this one sided arrangement of the
stud E jamming is prevented in the slanting positions of the lever handle C.
Fig. 3 is a side view of the end of the brake lever A. In this case the corru-
gations A are formed in a loop or slot in or on the brake lever A and the
projection E Figs. 1 and 2 is consequently omitted.
In the part side view Fig. 4 the end of the long lever A is formed with a bend
or dip and the toothed part made of such a length that the brake can be put on
by moving the lever handle C either forward or backward from the middle
off" position.
"
Fig. 4 shows a reverse arrangement in which the long lever A is provided
with a stud or tooth D and the lever handle C with a tooth rack A².
E is a
stud on the lever handle C for raising and supporting the long lever A.
In the following constructions the corrugated part of the lever A or of the
lever handle C may be of the form shown in Figs. 1 and 2 or 3, or 4 or 4.
Fig. 5 is a side view Fig. 6 an end view and Fig. 7 a plan of an arrangement
whereby the brake is put on or off from opposite corners or ends of the wagon.
The cross shaft is as it were broken off into two pieces B, B one at one end and
side of the wagon, and the other at the opposite side and end; each part is of
course supported in two suitable hangers from the underframe and carries a lever
handle C. Moreover each part B is formed with an upwardly cranked part Bi
these latter by means of rods K K connecting with a double armed lever L L
supported on an upright stud from the underframe.
Fig. 8 is a side view and Fig. 9 a plan of another arrangement. The long
brake lever A is here continued beyond the middle of the wagon so as to virtu-
ally constitute one of the push rods H of the previous arrangements, the further
end carrying a brake block I. The long lever has connected to it at a point
about midway between the wagon wheels another lever or push rod H carrying
at the other end a brake block I. These two levers A and H form together
what is called a toggle joint; when this toggle joint is depressed the brake is
applied. When the brake is off" the lever handles C are in about upright
position, the stud E on one lever handle C being then in engagement with a
notch M on the underside of the long lever A. The rack A' may also in this
case (as well as in the last described form Figs. 5, 6 and 7) be arranged as
described with reference to Fig. 4 that is to say so that the lever handles C may
be moved radially to the right or the left whereby the toggle joint is depressed
and straightened out and thereby the brake applied.
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
I claim is:-
1. In combination with a long brake lever connected to the brake block gear,
a cross shaft with an operating lever handle at each end, one lever handle having
a stud or tooth which is adapted to engage with corrugations or shallow rounded
teeth on the end of the long brake lever (or vice versa the long lever having a stud
or tooth adapted to engage with teeth on lever handle C the aforesaid stud or
tooth serving to hold the brake securely in the on position, and the rack teeth
affording facility for progressively taking up the wear on the brake blocks while
the brake can be taken off by a pull or push on either of the lever handles sub-
stantially as set forth.
66
"
2. The construction of brake lever operating gear described with reference to
Figs. 1, 2, 3, 4 and 4^.
3. The construction of brake operating gear described with reference to Figs. 5,
6 and 7.

page_text: 4. The construction of brake operating gear described with reference to Figs. 8
and 9.
5. The one sided arrangement of the stud E-for the purpose of obviating
4. The construction of brake operating gear described with reference to Figs. 8
and 9.
5. The one sided arrangement of the stud E for the purpose of obviating
jamming.
Dated this Twelfth dow of Mach 1000