Improvements in Brakes for Vehicles.
Year: 1899

page_text: Improvements in Brakes for Vehicles.
JOHN JOHNSON of 12 St. Luke's Terrace, Darlington, Foreman Blacksmith, and
JAMES ROBINSON JOHNSON, 12 Hume Terrace, Darlington, in the County of
Durham; Coachbuilder, do hereby declare the nature of this invention to be as
follows:-
This invention relates to a brake which may be used on railway and other
vehicles and is designed so that it may be operated either by hand, by Westinghouse
brake action or by any other form of power brake. It is arranged so that pressure
may be applied simultaneously to four wheels by either or both of two hand levers
which are placed one on each side of the vehicle.
In carrying out this invention the usual arrangement, seen in railway wagons, of
axle, handles, levers and blocks, is adopted. At one end of the axle the handle is
directly attached in such a manner that a slot in the enlarged end of the latter
corresponds with a projecting key on the axle, but having sufficient, play to enable
the handle to lie at rest when pressure is applied to the handle at the opposite side
of the vehicle. The other end of the axle is supported by a hanger so constructed
that the axle and the handle are carried on different centres, the relative positions of
which may be varied if required. The end of this handle is formed so that it will
gear with a clutch attached to the axle in such a manner that it will not exert any
pressure on the wheels when the opposite handle is operated.
Arms may be fixed to the axle in suitable positions for connection with power
brakes.
Double arms secured to the axle work with the connecting rods to which the
brake blocks are attached in such a manner that the pressure of either handle or of
the power brake will bring into operation a partially rotary notion of the arms
conveying equal pressure to all four blocks.
The particular arrangement of the handles is such that the brakesman or shunter
may have the handle at his right hand while facing the direction of the travel of
the vehicle and also that the four wheels to be braked shall be in front of him.

page_text: JOHN JOHNSON of 12 St. Luke's Terrace, Darlington, Foreman Blacksmith, and
JAMES ROBINSON JOHNSON, 12, Hume Terrace, Darlington, in the County of
Durham, Coachbuilder, do hereby declare the nature of this invention and in what
manner the same is to be perforined, to be particularly described and ascertained
in and by the following statement:-
This invention relates to a brake which-may-be-used-on for railway and-other
vehicles of the type which can be applied from either side of the wagon and is designed
so that it may be operated either by hand at the diagonally opposite corners of the
wagon. by Wstinghouse-brake-action-or-by-any-other-form-of-power-brake.
The invention will be fully described with reference to the accompanying
drawings.
Fig. 1. Side elevation of wagon showing brake applied by means of hand
lever.
Fig. 2. Elevation of opposite side of wagon showing position of hand lever at the
diagonally opposite corner. when-brake-is-applied.
Fig. 3. Plan of wagon.
Figs. 4. 5. 6 and 7. Enlarged elevations and sections of hand levers and clutch.
Referring to Figs 1. 3. 4. 5 the hand lever L is mounted allowed to partially
revolve on a stud pivot a upon which it is pivoted and which is secured to the
hanger H, H-H" which is provided with two centres one for the weigh-bar A and
one for the stud a.
Downward pressure on the hand lever L, -¹¹ causes it to
engage with the clutch b, which is secured to the weigh-bar axle A, A, This,
by means of the usual arms, connecting and guide rods, and brake blocks carries
pressure to as many blocks as may be thus connected attached to the weigh-bar.
axle. Referring to Figs 2, 3, 6, 7, the hand lever K. at the diagonally opposite
corner of the wagon is allowed to partially revolve on the weigh-bar axle A, A¹ being
restrained by a pin c. (Fig. 6) e (Fig 7) which engages with a slot in the lever
causing the weigh-bar axle to be rotated and the blocks applied to the wheels by
lowering the lever K. The slot at c, el is slightly larger than the pin e to allow the
lever K to be quite free when the lever L, L is operated, at the diagonally opposite
corner of the wagon.
Connected with each lever K and L, L' (see Figs. 1, 2, 3) and pivotted thereto is
a loose, swinging, racked lever d moving in the same guide . The teeth of
these levers are so hooked that as the hand levers K, L, L', are pressed down the
teeth engage with a pin f passing through the guide e, e, to the opposite side of the
vehicle. When so engaged the levers K, L L can only be released for raising by a
downward pressure at d or by pulling out the pin f, for which suitable handles
may be provided. The pins ff may be kept up to their position by springs or
other suitable means. The lower notch of the levers d is hooked the opposite way
and supports the hand levers K, L, Lat their highest points, keeping the blocks
from the wheels, and can only be released by pressure at d or by pulling out the
pin f. This arrangement enables the brakesman or shunter to have either hand
lever L or K at his right hand while facing the direction of travel of the wagon.
I am aware that it has been proposed to apply the brakes from either side of the
wagon by means of a clutch as in Morton's Patent No. 14495 of 1885 and I make
no claim therefor as such is not at diagonally opposite corners of the wagon nor has
a double centred hanger been employed for the purpose.

page_text: Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. The arrangement of a hand or-power brake enabling-it-to-be-operated-at
opposite-sides-of-the-vehiele-in--one--e--manner--that with the handles of the
operating levers are at or near the ends of one of the diagonals of the floor of the
vehicle, to enable the brake to be operated from opposite sides of the wagon sub-
stantially as described.
2-The-releasing-of-the-brake-from-either-side-of-the-vehiele-without-the-necessity
of-eressing-in-front-or-behind-to-effect-sueh-releasement.
2 3. The form-of hanger H H' in-that constructed with separate centres are pro-
vided for the weigh-bar axle A A' and lever L L substantially as described.
4-The-form-of-lover- as regards-the-slot-and-pin-at-o.