IMPROVEMENTS IN COMPENSATING APPARATUS FOR SIGNAL, AND SWITCH RODS AND SIMILAR PURPOSES
Year: 1884

page_text: I, HENRY WILLIAMS of 24 Albert Drive, Crosshill, in the county of Renfrew
North Britain Engineer do hereby declare the nature of my said invention for
IMPROVEMENTS IN COMPENSATING APPARATUS FOR SIGNAL, AND SWITCH RODS AND
SIMILAR PURPOSES to be as follows that is to say :-
My said invention has for its object to provide an improved compensating
apparatus for signal and switch rods and similar purposes so as to insure greater
accuracy than with any of the existing appliances as well as being simpler in
construction and less liable to get out of order.
In carrying out my invention in a simple and economical manner I employ a well
known mechanical arrangement which has not hitherto been used for this purpose
and it consists of a pinion turning on or with a stud bolt or pin. This pinion is in
gear with two racks placed diametrically opposite. To each of these racks are fixed
the rods or other connections to be compensated and when in operation a pull on
one rack causes, by means of the motion transmitted through the pinion a push
on the opposite rack or vice versa.
The racks instead of being placed diametrically opposite can be placed at any
convenient angle to each other without interfering with their proper working
which will greatly facilitate the laying of the rods and cross connections.
The parts described will be carried & guided in a suitable framing.
HENRY WILLIAMS.

page_text: I HENRY WILLIAMS of 24 Albert Drive Crosshill in the County of Renfrew
North Britain Engineer do hereby declare the nature of my said Invention for
"IMPROVEMENTS IN COMPENSATING APPARATUS FOR SIONAL AND SWITCH RODS
AND SIMILAR PURPOSES and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
My said invention has for its object to provide an improved compensating
apparatus for railway points looks gates and for similar purposes so as to insure
greater accuracy than with any of the existing appliances and to provide perfect
maintenance of power over any required travel without loss of stroke as well as
being less liable to get out of order.
In carrying out my invention I employ a well known mechanical arrangement
which has not hitherto been used for this purpose and which consists of a pinion
turning on or with a stud bolt or pin.
This pinion is in gear, with two racks placed diametrically opposité.
To each of these racks are fixed the rods or other connections to be compensated
and when in operation a pull on one rack causes by means of the motion transmitted
through the pinion a push on the opposite rack or vice versa.
In the accompanying drawings which represent a modification of my improved
compensating apparatus Figure 1 is a sectional side elevation and Figure 2 is a
transverse vertical section,
The improved compensator comprises a framing A which carries between its
cheeks a pinion B upon a spindle bearing in said cheeks. In gear with this pinion
and on opposite sides of it are two, racks O. D the one of which is fixed to one end
of the rod E and the other to the end of the rod E' so that the racks and pinion
form a connection between the rods. The rods E El may be tubular or of other
form and are connected to the rack bars C. D a convenient form of connection being
a cottar or bolts passed through the tube or other form of rod and a pin stud or
strap on the rack bar fitting with the tube or other form of rod the connection
being in every case rigid instead of being as usual by means of a movable joint.
To lessen friction of the parts while retaining the racks in place rollers F fitted in
bearings in the framing A bear on the back of each rack.
The racks instead of being placed diametrically opposite can be placed at any
convenient angle to each other without interfering with their proper working which
will greatly facilitate the laying of the rods and cross connections the pinion B in
such case being long enough to engage with the two rack bars which will no longer
be in the same plano.

page_text: 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. The combination of parts forming the improved compensating apparatus herein
described as and for the purpose set forth.
2. A compensator for railway points signals and for similar use consisting of
a pinion gearing with racks rigidly attached to or forming combinations of the rods
or other connections substantially as herein set forth.