Improvements in the Supports or Bearings for the Operating Rods of Signals and Switches, and other Railway Appliances.
Year: 1893

page_text: Date of Application, 20th Dec., 1893
Complete Specification Left, 20th Sept., 1894-Accepted, 27th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in the Supports or Bearings for the Operating Rods of
Signals and Switches, and other Railway Appliances.
I, ARTHUR GEORGE EVANS, of 116 Palace Chambers, Bridge Street, West-
minster, in the County of Middlesex, Civil Engineer, do hereby declare the nature
of this invention to be as follows:-
My present invention has reference to improvements on the invention described
in the Specification of Letters Patent granted to me, No. 13004, A.D. 1891.
In that Specification I described as the principle underlying my invention, a
longitudinal slot or path against which a top roller is free to move when the
operating rod is in compression. I further described the combination of a bottom
longitudinally moveable roller and an upper longitudinally moveable roller the rod
operating between them and moving the bottom roller when in tension and bearing
against the upper roller when in compression. I also described the standards
supporting the rollers as being separate and interlocked at their bases with each
other, so that a set could be built up by simply adding a standard, and the two
rollers, next the standards of the existing set, so that it would not be necessary
to disturb the existing set in order to add the provision for an additional rod.
In my present invention, in order to secure the standards more firmly and to
prevent the possibility of the top roller becoming displaced owing to the standards,
by insecure fixing or by reason of inequalities in castings, not being truly vertical,
I arrange on the top of the standard and above the upper slot or path, a projection
with a hole to receive a bolt, and between the standards I use a ferrule as a
separating or distance piece, the bolt passing through it. In a series of standards
there would be a bolt of suitable length to go through the whole of the standards
and separating ferrules between the standards, such bolt being secure by a nut or
cotter pin or both.
An alternative method would be, in lieu of the ferrules acting as separating pieces
between the standards, to provide a hole through the addition to the standard and a
corresponding hole at the specified distances through the bolt and insert a split
pin through the two; this will act as a holding piece keeping the standards in their
position.
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JOHN P. O'DONNELL,
70 and 71, Palace Chambers, Bridge Street, Westminster, S.W.,
Agent for the said Applicant.
COMPLETE SPECIFICATION.
Improvements in the Supports or Bearings for the Operating Rods of
Signals and Switches, and other Railway Appliances.
I, ARTHUR GEORGE EVANS, of 116 Palace Chambers, Bridge Street, West-
minster, in the County of Middlesex, Civil 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 :-
My present invention has reference to improvements on the invention described
in the Specification of Letters Patent granted to me, No. 13004, A.D. 1891.
In that Specification I described as the principle underlying my invention, a
[
ᎠᏙᏗ 1

page_text: longitudinal slot or path against which a top roller is free to move when the
operating rod is in compression. I further described the combination of a bottom
longitudinally moveable roller and an upper longitudinally moveable roller, the rod
operating between them and moving the bottom roller when in tension and bearing
against the upper roller when in compression. I also described the standards
supporting the rollers as being separate and interlocked at their bases with each
other, so that a set could be built up by simply adding a standard and the two
rollers next the standards of the existing set, so that it would not be necessary to
disturb the existing set in order to add the provision for an additional rod.
In my present invention, in order to secure the standards more firmly and to
prevent the possibility of the top roller becoming displaced owing to the standards,
by insecure fixing or by reason of inequalities in castings, not being truly vertical,
I arrange on the top of the standard and above the upper slot or path, a projection
with a hole to receive a bolt, and between the standards I use a ferrule as a
separating or distance piece, the bolt passing through it. In a series of standards
there would be a bolt of suitable length to go through the whole of the standards
and separating ferrules between the standards, such bolt being secure by a nut or
cotter pin or both.
An alternative method would be, in lieu of the ferrules acting as separating
pieces between the standards, to provide a hole through the addition to the
standard and a corresponding hole at the specified distances through the bolt and
insert a split pin through the two; this will act as a holding piece keeping the
standards in their position.
In order that my invention may be better understood and more readily carried
into effect I will proceed to describe the drawings hereunto annexed. The same
letters refer to the same parts in the several figures.
Figure 1 is a front elevation of a series of standards and rollers with my
arrangement of top bolting, for carrying three operating rods.
Figure 2 is a plan of Figure 1 showing the method of bolting down where a
series of standards is arranged.
Figure 3 is a side elevation of Figure 1.
Figure 4 is a front elevation of standards and rollers for channel section
operating rods.
Figure 5 shows roller standards with an alternative method of top bolting and
spacing.
Figure 6 is a side elevation of Figure 5 with rollers added.
Figure 7 is a section of a top roller for tubular section of rod.
Figure 8 is a section of a bottom roller of the same.
a is the bottom roller for tubular point rod, Figures 1, 2, and 3, a¹ is the axis or
pivot or spindle on each side of the bottom roller, a² anl a³ are the side projections
of the bottom roller a which reduce the friction, keeping the larger sides of the
roller from touching the insides of the standards. b is the top roller, 6' on each
Bide is the spindle of the top roller, 6 and 6' are the side projections of the top
roller provided for reducing friction, keeping the remaining portion of the roller
from touching the insides of the standards. c is the elongated path or slot in the
side of the standard provided for the bottom roller, and d is the similar elongated
path or slot provided for the top roller. c' is the lower part of the slot cupon
which the spindle a' of the bottom roller revolves, d¹ is the lower path of the upper
slot d and is the upper path of the upper slot d against which the roller b
operates when the rod is put into compression. In lieu of slots such as c or d,
recessed shelves may be formed on the side cheeks of the standards for the rollers
to roll upon if desirable. is the tubular point rod which is supported on the
bottom roller a, y are the holes by which the standards are screwed to their
supports, either wood or iron. h, are the bevelled ends of one foot of the
standard which fit into corresponding bevelled recesses k, k' on the foot of the next
staudard, is the square end of the other foot forming a firm straight abutment
against the square end of the adjacent foot of the next standard.

page_text: My arrangement for channel iron rod is shown in Figure 4. n is the rod, m the
bottom roller and o the top roller.
In Figures 1 to 4, r, are the lugs on the top of the roller standards through which
a bolt t is passed. Each standard is separated by means of a spacing ferrule s, the
whole of the standards are then made firm by a nut u.
In the alternative method in Figures 5 and 6, in lieu of the spacing ferrules
I use cotter pins s' inserted through the lugs and bolt t.
My arrangement of top bolts and spacing ferrules or their equivalents obviates
the necessity of employing holding down coach screws intermediate between the
end standards. There is also the further advantage gained that in order to take
out a rod intermediate between the end rods all that is needed is the top bolt and
spacing ferrules to be withdrawn and the end coach screws p slackened, if desirable,
when the upper rollers can be taken out and the rod removed.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In supporting guides for rods employed in railway signalling apparatus, the
combination of a bottom roller or pulley provided with spindles or pivots of
relatively smaller diameter arranged to roll either on a recessed shelf on the side
cheek of a standard, or on an elongated path in such standard or along the lower
side of an elongated slot provided in such standard, a top roller also provided
with spindles or pivots of relatively smaller diameter arranged to roll on a
recessed shelf on the side cheek of the standard, or on the upper or lower paths
of an elongated slot provided in such standard, and of a lng on the top of and a
spacing ferrule between standards and a bolt through the said lugs and ferrules,
all substantially as described for the purposes herein set forth and as illustrated in
the drawing annexed.
2. In supporting guides for rods employed in railway signalling apparatus, the
combination of a bottom roller or pulley provided with spindles or pivots of
relatively smaller diameter arranged to roll either on a recessed shelf on the side
cheek of a standard, or on an elongated path in such standard or along the lower
side of an elongated slot provided in such standard, a top roller also provided with
spindles or pivots of relatively smaller diameter arranged to roll on a recessed
shelf on the side cheek of the standard, or on the upper or lower paths of an
elongated slot provided in such standard, and of a lug on the top of each standard,
a bolt passing through the said lugs and cotter pins through the said lugs and bolt,
all substantially as described, for the purposes herein set forth and as illustrated in
the drawing annexed.
ለዚ 1
2
JOHN P. O'DONNELL,
70, and 71, Palace Chambers, Bridge Street, Westminster, S.W.,
Agent for the said Applicant.