Improvements in Rollers for Reciprocating Rods, such as those which Work Railway Points or Signals and the like.
Year: 1893

page_text: Date of Application, 13th Feb., 1893
- Complete Specification Left, 13th Nov., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Rollers for Reciprocating Rods, such as those
which Work Railway Points or Signals and the like.
I, EDMUND CHARRINGTON, of 5 Broad Street Avenue, in the City of London,
do hereby declare the nature of this invention to be as follows:-
My invention relates to the rollers for carrying reciprocating rods such as those
which work railway points or signals and the like, the chief object which I have in
view being to diminish friction and to facilitate the taking apart of the apparatus
for repairs or other purposes.
The supporting roller according to my invention has a pin projecting at each side
and resting in a concave bearing formed in a segment arm which is freely suspended
by a pin from the side frame, so that as the roller travels to or fro when the rod is
pulled or pushed, the segment is partly turned on its suspending pin thus operating
as an antifriction wheel. Both segments may be suspended from the one pin which
crosses from the one side frame to the other above the reciprocating rod, and in
cases where there are a number of these. rods side by side, the one cross pin may
extend from one extreme side frame to another carrying a number of the segments
without intermediate side frames.
Or where there are a number of reciprocating rods instead of supporting all the
segments from one cross pin I arrange that each pair of segments should be
supported by a separate cross pin which can be made to drop into slots in frames
arranged at each side of each reciprocating rod and being secured therein by pins
or otherwise.
Dated this 13th day of February 1893.
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Rollers for Reciprocating Rods, such as those
which Work Railway Points or Signals and the like.
I, EDMUND CHARRINGTON, of 5 Broad Street Avenue, in the City of London,
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:-
My invention relates to the rollers for carrying reciprocating rods, such as those
which work railway points or signals and the like, the chief object which I have in
view being to diminish friction and to facilitate the taking apart of the apparatus
for repairs or other purposes.
The supporting roller according to my invention has a pin projecting at each side
and resting in a concave bearing formed in a segment arm which is freely suspended
by a pin from the side frame so that, as the roller tends to travel to or fro when
the rod is pulled or pushed, the segment is partly turned on its suspending pin, thus
operating as an antifriction wheel. Both segments may be suspended from the one
pin which crosses from the one side frame to the other above the reciprocating rod,
and in cases where there are a number of these rods side by side, the one cross pin
may extend from one extreme side frame to another carrying a number of the
segments without intermediate side frames.
Or where there a number of reciprocating rods, instead of supporting all the
segments from one cross pin I may arrange that each pair of segments should be
ID 77

page_text: supported by a separate cross pin which can be made to drop into slots in frames
arranged at each side of each reciprocating rod and being secured therein by pins
or otherwise.
Fig. 1 of the accompanying drawings is a vertical section and Fig. 2 is a side
view with one side of the frame removed showing a roller mounted according to my
invention for carrying a reciprocating rod;
Fig. 3 is a front view shewing a number of rollers thus mounted to carry a
number of reciprocating rods.
The roller A has at each side a projecting pin B which rests in a concave bearing
formed in a segment arm C suspended from a pin D carried for the side frames E.
The concave hearing for the pin B is in the form of a curved slot, the curvature of
the surface on which B bears being a circular arc struck from the centre of the
pin D so that as the roller A is caused to revolve by the push or pull of the rod R
which it carries, its pins B rolling on the surface of the curved slot cause the
segment arm to turn partly round upon their suspending pin D as an axis, each of
them thus operating as an antifriction wheel. In Fig. 3 a number of pairs of
segment arms C are suspended from one pin D.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
Mounting rollers for reciprocating roils by engaging pins projecting from their
sides in curved slots of seginent arms suspended from pins above, substantially as
and for the purpose herein set forth.
Dated this 9th day of November 1893.
ABEL & IMRAY,
Agents for the Applicant.