Year: 1898

page_text: Date of Application, 6th May, 1898-Accepted, 25th June, 1898
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:
The present invention consists of a safety apparatus to prevent displacement
of points traversed by a railway train. An auxiliary rail is provided, which
under downward pressure locks a stop-lever into the point mechanism in such a
way that displacement of the points is impossible. In the accompanying draw-
ings
Figure 1 shews a side view.
Figure 2 a front view, and
Figure 3 a plan view of this safety apparatus.
Figure 4 is a section through Figure 1.
Figure 5 illustrates in three stages II, III & IV the working of the apparatus.
Figure 6 shews a sectional plan on the line c-d Fig. 1.
On a rail in front of the points are secured plates of stout sheet iron about 18
millimetres thickness fixed at about two metres' interval by means of bolts, such
plates being prolonged below the rail-foot. A bolt n passes through these extended
portions, over which a collar or sleeve is passed in order to facilitate the screwing
up of the bolt. By this means a secure and firm axis is provided for the bent-
lever a which is attached to the pressure rail above. The bent-lever a works in
a guide m (as shewn at Fig. 4) of stout sheet-iron which is applied to the one
plate 1, so that the movement mechanism of the pressure rail forms a stable whole.
To bring the pressure rail, which projects 20 millimetres above the upper surface
of the rails, back into its normal position after being passed over. The spring ?
is employed which in the accompanying drawing is attached to a plate s affixed
to the plate and the guide, mas seen at Figures 1 & 6. (The spring can moreover
have any desired form or position). The stop r which is attached to the pressure-
rail and catches under the rail-foot is intended to prevent the pressure-rail from
rising too far.
The pressure rail is also attached to the extension e fixed on the outside of the
rail by means of the lever b, so that when the pressure-rail, is depressed the
rocking shaft f, which works in a bearing k, is revolved and the shorter extension
arm 7 situated on the rocking shaft f is moved towards the points. Attached
to the upper end of the arm is an arm d rounded off in front, resting freely
with its front portion win a guide i on the connecting rod. The lock which
for convenience's sake may be situated inside or outside the line on the draw or
gripping-bar, or as in the drawing on the point closing bar, or on their lateral
extensions, as is shewn in dotted lines on the drawing, consists of angle irons
rivetted together, which have at the top a rising surface and notches on both
sides. The whole lock is placed on a rectangular block welded onto the round
bar but it can also be applied directly to the round bar. Now, when the points

page_text: are in use, if the axle f of the arm d is pushed forward, it takes up the positions
shewn in the accompanying drawings under Figure 5, II, III, IV. The last
position IV of the arm & shews its place when the pressure rail is set in motion.
By reason of the rising surface, it lies on the edge of the one angle-iron but when
the points are brought completely over, it falls into its normal forward position
and the notches z (section b-c) prevent displacement of the points..
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed we declare that what
we claim is: -
CLAIM.
A safety apparatus to guard against displacement of points, characterised by
an auxiliary rail in front of the point mechanism close to the rails by the down-
ward pressure of which auxiliary rail when the train passes over it and the opera-
tion of suitable intermediaries (a, b, f, c, & g) an arm (d) locks into one of the
openings of a lock situated on the bar which connects or operates the points in
order to prevent the points being displaced towards the opposite side.
Jon way
Ap
OSKAR GOLDAMMER
CONRAD SCHUTTE
By George Barker.
Fellow of the Chartered Institute of Patent Agents
Agent for Applicants, 77, Colmore Row, Birmingham.