Improvements in Brake Apparatus for Vehicles, such as Railway Wagons.
Year: 1895

page_text: Date of Application, 29th June, 1805
Complete Specification Left, 10th Jan., 1896-Accepted, 22nd Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in Brake Apparatus for Vehicles, such as Railway
Wagons.
I, HAYDON PARKER of 81 Westdown Road Stratford in the County of Essex
Railway Coach Maker do hereby declare the nature of this invention to be as
follows:-
The invention relates to an improved brake apparatus so designed that it may
be readily operated on one or more wheels by one movement in either direction
from either side of a vehicle.
My apparatus consists of a shaft connected at one or both ends to a hand lever
or levers in conjunction with rack and pinion or worm wheel and screw arrangement
and reciprocating rods and levers to the brake blocks, the hand lever or levers
being secured in position of " on or "off" by a ratchet quadrant or quadrants.
Compensating arrangement is provided for necessary adjustment of the brake
blocks to the wheels.
"
Dated this 27th day of June 1895
Improvements in Brake Apparatus for Vehicles, such as Railway
Wagons.
1, HAYDON PARKER of 81 Westdown Road Stratford in the County of Essex,
Railway Coachmaker, 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 relates to an improved brake apparatus for vehicles such as
railway waggons.
The apparatus is so constructed that the brake can be quickly
and conveniently put on and taken off one or more wheels by one movement of a
lever in either direction from a normal central position and from either side of
the vehicle.
On each side of say a railway waggon I provide a hand lever. Both these
levers are fixed in similar positions on the same shaft which is mounted transversely
under the under-frame of the vehicle and are united or stayed together by a
tie rod or stay. On this shaft is also fixed a short lever which by a link or
directly is connected to a horizontal rod or rods having slots in their outer
ends wherein engage pins on brake block levers which are arranged between
the pair of rods and are jointed to the brake blocks and at their lower ends
to a horizontal rod; or instead of the aforesaid short lever I may provide a tooth
wheel which gears with rack teeth on a horizontal rod connected by slots and pins
to the brake block levers. The upper ends of these brake block levers in some
forms of the apparatus come against one or other of two hanging stops in the
on position of the brake blocks. These latter are suspended from brackets on
the under frame. In connection with a tooth on one of the hand levers I provide
"
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ר,

page_text: "
a straight tooth rack or a quadrant, by preference the former, for the tooth
to engage with to secure the levers in the "
on or "off" position. Compensating
arrangement is provided for necessary adjustment of the brake blocks to the
wheels.
I shall now describe several forms of brake apparatus, constructed according to
my invention with reference to the accompanying drawings.
Fig. 1 is a side view of the apparatus on one side of a railway waggon, Fig. 2
plan view, Fig. 3 end view partly in section and Fig. 4 detail view.
Figs. 5, 6, 7, 8 and 9 are side views of modified arrangements, and
Fig. 10 is a side view illustrating the application of the invention to present
brake gear.
29
Referring to Figs. 1 to 4 A is a hand lever fixed on a shaft. B mounted in
bearings Con the underframe of the vehicle. A lever similar to A is fixed on the
other end of the shaft B and the two levers are stayed together by a stay rod D.
On the shaft B is welded (or otherwise fixed) a short lever E see Fig. 4 which by
a link E is connected to two horizontal rods F the end parts of which are slotted
and are by pins working in the slots connected to the brake block levers G. The
brake blocks H are by hangers or links I suspended from brackets K on the
underframe. The upper ends of the brake block levers G come against the inner
bight or loup of one or other of the hanging links L which are looped or bent
double and are fixed on the spindles or pins that carry the hangers 1. The lower
ende of the brake block levers G are united by a horizontal rod M which is
provided with several holes for the joint pins, to admit of adjustment for wear of
the brake blocks. The brake gear E, E, F, G, L, M, on the other side of the
vehicle would be similar if the wheels on that side were fitted with brake blocks.
If as is usual and as here shown in Figs. 2 and 3 the wheels on one side only are
to be braked, the gear on the other side consists merely in a hand lever like A for
operating the brake from that side. The lever A on the side here shown in Fig. 1
has a tooth which can engage with the teeth on the outer side of the tooth rack N
(which is fixed to the waggon) to secure the levers A in the "
"off"
position for both the levers work in unison by reason of the stay D. To release
the brake when the operator is on the side here shown in Fig. 1 the hand lever A
is pulled away from the tooth rack N and brought to the normal or central position
shown; and to release the brake when the operator is on the opposite side the
band lever on that side is pushed towards the side of the vehicle and the hand
lever A on the side shown in Fig. 1 will by reason of the tie bar D between the
two hand levers have its tooth released from the toothed rack N and the hand
levers A are at the same time brought into the "off" position. No mistake can
be made by this construction of apparatus for the brake will be put on whether a
hand lever is moved to the front or to the rear of the vehicle, and the brakes are
off when the hand levers are in the central normal position. Of the aforesaid
hanging links L the inner bight or loop of one or the other of them forms a fulerum
or abutment for the brake block lever G in question according as the hand levers
are worked towards the front or the rear of the vehicle. If I call the left of the
figure the front, and the right the rear then if the hand lever A be pulled to the
rear, the front brake block lever G will with its upper end abut against its stop
link Land vice versa if the hand lever A he pulled to the front the rear brake
block lever G will with its upper end abut against its stop link L.
on or
Fig. 5 shews another form in which for the short lever E and link E' is
substituted a tooth sector lever E that works into a tooth rack on the underside of
the rod F. The action is the same as in Fig. 1.
Fig. 6 shews another arrangement in which a tooth wheel E (or it might be a
wheel sector) works in a tooth rack on the upper side of the rod F. The levers A
are in this case directed downwards; the one shewn has two teeth which work
each in its half of the curved rack or quadrant N.
In Fig. 7 the hand lever A is arranged near one end of the waggon as it is
sometimes necessary when the waggon is provided with bottom doors.

page_text: Fig. 8 shews a modified arrangement of parts where the rod M is superseded by
two rods M which cross each other and are each connected at one end to the
bottom end of a brake block lever G and at the other end to the opposite brake
block lever at a point higher up.
Fig. 9 shews another modification where instead of one lever E on the shaft B
there are two such or a double armed one and two rods M connected to each arm
or lever E, the other ends of said rods being jointed to the lower ends of the brake
block levers G; the rods M moreover have slots where they connect to the
levers E.
Fig. 10 shews my invention adapted to present brake gear consisting of a
bracket c, brake block levers g and rods m. To this I add and connect the following
parts viz. two levers E, two rods M with their slotted ends connected to said levers,
the hand levers A, one on each side of the waggon on their common shaft B and
with the stay D between them, and the tooth rack N.
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 means for applying a hand brake from either side of a railway waggon
or the like consisting of a hand lever on one side of the vehicle, a tooth rack fixed
on the vehicle for a tooth on the lever on that side to gear with for the purpose of
securing the brake in the " on and "off" position, and a corresponding lever on
the other side of the vehicle, the two levers being on the same shaft and stayed
together, all so arranged that by one movement of either lever from a normal or
central position whether towards the front or towards the rear of the vehicle the
brake is instantaneously put on, and by a return movement to the normal position
the brake is instantaneously taken off, substantially as set forth.
2. A hand lever provided with a tooth and a tooth rack fixed on the vehicle for
such tooth to gear with, in combination with a lever or equivalent means for
actuating a rod or rods F with slotted ends, brake block levers G jointed to such
ends, and a rod or rods M connected to the brake block levers substantially as set
forth.
"
3. The rod or rods F with slotted ends, any suitable means for moving the same
longitudinally for the "on or "off" position of the brake, the brake block
levers G jointed to the slots in F, and stops L for forming alternately abutment
or fulcrum for the upper end of the brake block levers, substantially as set forth.
4. The constructions or arrangements of brake gear described with reference to
Figs. 1 to 9.
5. The construction or arrangement of brake gear described with reference to
Fig. 10.
Dated this Tenth day of January 1896.
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.