Year: 1898

page_text: I, FRANZ TRENKEL, of Crone a.d. Brahe, in the Empire of Germany, do hereby
declare the nature of this invention to be as follows:
The stop-block forming the subject of the present invention is principally in-
tended for use on light railways, and serves to stop waggons which it may be
desired to prevent from passing beyond a certain position upon the track during
shunting operations or the like.
The improved stop-block proper may be turned over to one side in order to
permit the waggons to pass the spot where it is arranged, if desired. The stop-
block cannot, however, be so turned over except by the aid of a special key, in
order that no displacement may be effected by unauthorised persons.
In carrying my invention into practice the lower portion of the stop-block is
attached to the rail by means of bolts or the like. This lower portion is pro-
vided with a hinge around which the upper portion of the block may be rotated
in such a manner as to be turned to one-side from off the rail. This upper por-
tion is cut away so as to form an are of a circle upon both sides. The arc
corresponds to the ordinary wheel circumference, so that the
striking against it, fits as nearly as possible into the said are and thus transmits
waggon wheel
the pressure or shock as uniformly as possible over the whole of the upper portion.
The under edge of this upper part rests upon the rail head for its entire length.
so that the shock is distributed over a large rail surface. In order to still further
distribute the shock, two or more tenons or pins are provided upon the under
edge of the upper part of the block and fit into corresponding recesses formed
in the lower part of the block. By means of these pins the whole of the shock
is not transmitted merely upon the rail head but also upon the foot, thereby
relieving the hinge-pin from excessive strain.
Upon the outer face of the upper part of the stop-block is arranged the lock
casing within which the bolt formed with a hook is capable of being rotated to
a certain extent upon a pivot. When the stop-block is locked in an operative
position, the hook engages behind a nose in the recess in such a manner that the
upper part of the block cannot be turned back. In order to effect this, the key
which is provided with a short ward must be inserted in the key-hole and slightly
turned so as to press the bolt to one side thereby releasing the hook, whereupon
the upper part may be turned back out of the operative position. The key-hole
may advantageously be provided with a flap having a hook thereby preventing
the admission of dust and dirt into the key-hole. If it is desired to close or lock
the stop-block after the passage of waggons, so that no other waggon may
D

page_text: be able to pass the point, all that is necessary is to cause the upper part of the
block to turn upon its hinge.
Dated this 3rd day of May 1898.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
improvements in Stop Blocks for use on Railways.
I, FRANZ TRENKEL, of Crone a.d. Brahe, in the Empire of Germany, Engineer,
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:―
"
The stop-block forming the subject of the present invention is principally in-
tended for use on light railways, and serves to stop waggons which it may be
desired to prevent from passing beyond a certain position upon the track during
shunting operations or the like.
The improved stop-block proper may be turned over to one side in order to
permit the waggons to pass the spot where it is arranged, if desired. The stop-
block cannot, however, be so turned over except by the aid of a special key, in
order that no displacement may be effected by unauthorised persons.
Figure 1 is a lateral view of the stop-block.
Figure 2 is an end view of the same.
Figures 3 and 4 are two views shewing the upper portion of the stop-block
turned back, and
Figure 5 shews the key and the hole for the same.
Figures 6, 7 and 8 illustrate a modificaton to be hereinafter referred to.
In carrying my invention into practice the lower portion of the stop-block
is attached to the rail a by means of bolts or the like. This lower portion is
provided with a hinge e and pin e around which the upper portion of the block
may be rotated in such a manner as to be turned to one side from off the rail
(see Figure 4). This upper portion is cut away so as to form an are of a circle
upon both sides. The arc ? corresponds to the ordinary wheel circumference, so
that the waggon wheel striking against it, fits as nearly as possible into the said
are p and thus transmits the pressure or shock as uniformly as possible over the
whole of the upper portion. The under edge of this upper part rests upon the
rail head a for its entire length so that the shock is distributed over a large rail
surface. In order to still further distribute the shock, two or more tenons or
pins are provided (Figures 3 and 4) upon the under edge of the upper part of
the block and fit into corresponding recesses o formed in the lower part of the
block. By means of these pins the whole of the shock is not transmitted merely
upon the rail head but also upon the foot, thereby relieving the hinge pin from
excessive strain.
Upon the outer face of the upper part of the stop-block is arranged the lock
casing g within which the bolt f formed with a hook flis capable of being ro-
tated to a certain extent upon a pivot ¹. When the stop-block is locked in an
operative position as shewn in Figures 1 and 2, the hook f¹ engages behind a
nose in the recess m in such a manner that the upper part of the block cannot
be turned back. In order to effect this, the key which is provided with a short
ward must be inserted in the key hole i and slightly turned so as to press the
bolt f to one side thereby releasing the hook f¹,
whereupon the upper part may

page_text: be turned back out of the operative position, as shewn in Figure 4. The key-
hole may advantageously be provided with a flap k having a hook thereby
preventing the admission of dust and dirt into the key-hole. If it is desired to
close or lock the stop-block after the passage of waggons, so that no other waggon
may be able to pass the point, all that is necessary, is to cause the upper part of
the block to turn upon its hinge.
The modification illustrated in Figures 6, 7 and 8 is adapted for use upon both
rails. In accordance with this modification a stop block rests upon each of the
rails, the two stop blocks are connected by means of a rod and are turned back
at the same time when it is desired to leave the track free for the passage of
waggons.
Figure 6 shows an elevation of the stop block across the track in a closed
position.
Figure 7 shows the left hand stop block in side elevation, and
Figure 8 represents it in a turned back or open position.
The constituent parts of this stop block are similar to those shown in
Figures 15 except that each part is duplicated upon each of the rails. Upon
the right hand rail a is fixed the under part band on rail a' the under part 61.
The part carries the hinge staples c and the bolt e, in order that not only the
right hand upper portion d but also the upper portion resting upon the other
rail may be displaced with the connecting rod q and turned over laterally
(Figure 8). Instead of one upper portion dd, a second upper portion is also
arranged upon the other rail, it is formed in the same manner as the right hand
upper portion. The lock g with its cover is preferably arranged upon the left
hand upper portion, whilst the right hand upper portion is only provided with
nuts to hold the connecting rod g. In order to provide additional strength,
the pins n, n, which fit within the recesses oo, are arranged upon the left hand
upper portion, similar strengthening parts may in the same manner be arranged
upon the right hand upper portion, this is however not specially shown in the
drawing because these reinforcing parts are not absolutely necessary for either
of the upper portions.
The arrangement and form of the other parts of the device are apparent from
the drawing. This arrangement possess an advantage as compared with that
shown in Figures 1-5, in that the waggon is not stopped upon one side only,
the shock being borne equally by the wheels upon both sides.
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. A stop block for stopping waggons, consisting of an under portion (b) fixed
upon the rail (a) and provided with a hinge (o) around the pin (e) of which the
stop block proper (p) is able to rotate, a lock being provided for the purpose of
preventing interference with the block by unauthorised persons, such lock being
adapted to be opened by means of a key (1) releasing the hook (f) of a bolt (f).
2. A stop block for stopping waggons substantially as described in Claim 1,
execept that a stop block is arranged upon each rail of the track, whilst both
blocks are connected by means of a rod (9).
Dated this 31st day of Januo 1900
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.