Apparatus for automatically operating Railway Brakes on occurrence of dangerous jolting.
Year: 1899

page_text: Date of Application, 22nd Mar., 1899
Complete Specification Left, 22nd Dec., 1899-Accepted, 3rd Feb., 1900
PROVISIONAL SPECIFICATION..
Apparatus for automatically operating Railway Brakes on occurrence
of dangerous jolting.
We, ROBERT NÁDAS, of Széll Kálmángasse 4, Steinamanger, Hungary, Chief
Engineer, and LOUIS SEILE, Editor, of 37 Praterstrasse, Vienna, in the Empire of
Austria, do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide means by which the brakes of a
railway train or car may be automatically brought into action on the occurrence
of dangerous jolting for example should the train or a car thereof become derailed
or should a wheel or an axle or an axle spring break.
In a suitable position of the frame of the car there is fixed a device acting as
a valve or cock in connection with a branch pipe of the vacuum or pressure pipes
of the brakes and in the axle box of the wheel or its spring is fixed an operating
mechanism which on an excessive rise or fall of such box or spring will move
a lever attached to such valve or cock so as to open, the same thus admitting
atmospheric air to a vacuum brake or relieving the pressure of pressure brakes and
so causing the brakes to enter into action.
The aforesaid valve device may consist of a box like end to the branch pipe on
which is a rotary disk with a cover having holes similar to a hit and miss ventilator
and a lever attached to the axle of this disk may have a pin engaging a slot in
another lever whose outer, end extends into the path of two adjustable abutment's
on a vertically movable rod attached by vertical and double horizontal adjustments
to the axle box or spring so as to be capable of universal adjustment to suit.all
constructions of vehicles.
-
When an excessive jolt or movement of the axle box or spring in excess of normal
movement occurs, either the upper or lower abutment as the case may be will strike
and move the operating lever which opens the valve. Such a movement will carry
the lever out of the path of the abutments so that reflex action, should such occur,
would not restore the parts to their original position and thus perhaps immediately
close the valve again before the brakes have acted.
Dated thin Und day of March 1000
HERBERT. HADDDAN & Co.,
Agents to Applicants.
COMPLETE SPECIFICATION.
Apparatus for automatically operating Railway Brakes on occurrence
of dangerous jolting.
We, ROBERT NADAS, Chief Engineer, of Szell Kalmangasse 4, Steinamanger,
Hungary, and LOUIS SEILE, Editor, of 37, Praterstrasse, Vienna, Austria, 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 apparatus to be applied to railway coaches by which

page_text: the brake will be brought into action automatically on the occurrence of excessive
and dangerous jolting of the coach, as for instance in the case of derailing or
breakage of wheels, axles, metals, springs and such like.
This apparatus can be adapted to automatic compressed air-brakes or steam,
vacuum and other brakes of the same nature and consists principally in a device
fixed to the frame of the coach and acting as a valve or cock to a branch pipe of the
vacuum or pressure pipes and in an adjustable operating mechanism connected with
the axle box of the wheel and preferably fixed to its spring. This operating
mechanism.does not act upon the ordinarily shut opening and closing arrangement
of the aforesaid valve or cock as long as the jolts of the car do not exceed a certain
limit, but when this limit is exceeded the said operating mechanism opens the said
valve or cock and thereby causes the brake to operate.
The attached drawing represents an example of this systein of mechanically
operating railway brakes.
Fig. 1 is an elevation of the apparatus.
Fig. 2 is a plan and partial horizontal section.
Fig. 3 is an end view of the apparatus showing certain parts in section.
Fig. 4 shows the position of the apparatus in which it causes the brake to
operate.
The box b rests by means of the socket 6 upon the bearing a where it is held
by the attachment screw b². The bearing a is fixed to the coach frame A.
Inserted or screwed into the hollow of the socket b' is a pipe c which is held
fast by the counter nut c¹. This pipe c is connected with the pipe which acts
upon the arrangement for operating the brake. In the case of a vacuum brake,
for instance, the pipe c is connected with the main pipe ending in the cylinder of
the brake. In the case of a compressed air brake, for instance a Westinghouse
brake, the box band pipe c are connected with the main pressure pipe. The box b
contains an opening and closing arrangement preferably of the kind shown in the
attached drawing, in which d represents a rotary disc with one ог more per-
forations dd in it, which are usually closed by the solid part of the cover f. In
this cover there are slots f1f1 (Figs. 1, 2 and 4).
The axle of the rotary disc d goes through the cover fand a lever g attached to it
is provided with a pin g¹ which engages the slot h¹ of a rotarily movable lever h
pivoted to the cover f. With this lever h in a central position, the position of the
rotary disc d is such, that the perforations d¹ d' are closed, but if the lever his
pushed upwards or downwards the perforations d¹¹ in the disc d are brought
opposite those in the cover f, and thereby communication is opened between the
interior of box b, pipe cand the outward atmosphere. There then takes place either
the entrance of air into the main pipes of the brake or the escape of compressed air
or steam or such like from the main pipes of the brake as the case may be and the
brake would consequently come into operation.
The lever, moving the rotary disc d, is operated in the following manner:
An adjustable plate either forked or provided with a long slot is fixed to the
axle box i preferably by means of the bolts a 's which hold the axle box and the springs
together. Into this plate k a non-rotary screw adjustable between nuts is fixed.
At the end of this screw is an eye l which forms the socket of a non-rotary upright
screw m adjustable as to height. Fixed to the screw m is a likewise perpendicular
rod which is provided with two adjustable abutments o and o' the position of which
can therefore be altered at will. The free end h² of the lever h lies between these
two abutments o and o¹ and follows the jolts and swerves of the coach. The distance
of the two abutments o and o² from each other is arranged according to circumstances,
so, that so long as the jolts and swerves of the coach do not exceed a certain limit, the
lever h, following the swerves and jolts of the car will not come into contact with
the abutment o or o¹ but as soon as these swerves and jolts exceed that limit and
become dangerous as for instance in derailments, breakages of wheels, axles, metals
and springs or such like, the lever h will be brought up against one of the

page_text: abutments o o¹ as shown in Fig. 4, and thereby the rotary disc d will be moved, causing
as explained above, the brake to operate.
The length of the lever arm h³ and the position of the two abutments o and o¹
must be so arranged that when the rotary disc d has been moved by the lever h the
same movement will carry the latter out of the path of the two abutments so that
reflex action, should such occur, will not restore the parts to their original
position.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim
is :-
1. An apparatus for automatically operating railway brakes on occurrence of
dangerous jolting said apparatus consisting principally in an opening and closing
device d the box b of which is connected through a branch pipe c with the main pipes
of the brake, and fixed to the frame of the coach, and of an adjustable operating
device o o¹ for the said opening and closing device connected with the axle
bearing of one of the wheels and preferably fixed to the mounting ; of one of the
wheel springs, this operating device not acting upon the ordinarily shut opening
and closing device as long as the jolts do not exceed a certain limit, while on the
occurrence of excessive jolting the operating device will act upon and open the
opening and closing device, thereby causing the brake to operate.
2. A form of the apparatus in Claim 1, in which the opening and closing device
consists of a rotary disc d, the operating lever h 2 of which moves between two
adjustable abutments o o¹ fixed to the axle bearing preferably the mounting of the
wheel spring j.
Dated this 23rd day of December 1899
HERBERT HADDAN & Co.,
Agents to Applicants, 18, Buckingham Street, Strand, W.C.