Improvements in connection with the Supports or Bearings for the Operating Rods of Signals and Switches and other Railway Appliances.
Year: 1897

page_text: Date of Application, 12th June, 1897
Complete Specification Left, 12th Mar., 1898-Accepted, 16th Apr., 1898
PROVISIONAL SPECIFICATION.
Improvements in connection with 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 No. 24466, dated December 20th 1893,
granted to me. In that specification the invention set forth consisted in the
addition of a lug to the top of each standard, providing a ferrule between each pair
of standards and threading a bolt through said lugs and ferrules, for the purpose
of holding the standards firmly together at the top so preventing any working out
of the top rollers. With this invention and with the invention set forth in the
prior Specification of Letters Patent granted to me, No. 13004 of A.D. 1891, if it
was required to remove the top roller in order that the rod beneath might be taken
out it was necessary to move aside the standards on each side of the rod required
to be removed in order to get the necessary space for the spindles or trunnions of.
the top roller to clear the standards so as to get the said roller out; in thrusting
aside the standards to get this space other standards would also be moved aside
and frequently during this movement the top rollers got out of their position and
the set of standards and rollers required fresh building up, thus causing trouble
and inconvenience.
With my present invention in order to obviate the disadvantages above
mentioned and to enable the standards to always keep in their proper upright
position even when rods are required to be removed, I arrange that the top lug of
each standard is vertically fluted or grooved to receive a corresponding projection
or projections on the ferrule the ferrule being as it were dovetailed into the top
lugs of adjacent standards. The depth of each fluting or groove in each top lug
would be equal to the width, depth or amount of projection of the spindle or
trunnion of the roller so that when the bolt holding the tops of the standards
together is withdrawn the ferrule can be slipped up or withdrawn and, the extra
width provided by the fluting of the lugs being (as before mentioned) equal to the
projection on either side of the spindle of the top roller said roller may also be
removed without disturbing the remaining standards and rollers in the set.
Although modifications might be made to provide this result yet the essence of
the present invention is making the ferrule of such a form that the projections on the
ferrule fill up the space left by the fluting or groove on the top path on which
the top roller revolves when in action and allows its withdrawal when said ferrule

page_text: is withdrawn, no extra parts being required for a set or sets of rollers as described
in the above cited prior specifications.
Dated this 12th day of June 1897.
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,
Agent for said Applicant, 70 & 71, Palace Chambers, Westminster, S.W.
.
Improvements in connection with the Supports or Bearings for the
Operating Rods of Signals and Switches and other Railway
Appliances.
I, ARTHUR GEORGE EVANS, of 116, Palace Chambers, Westminster, in the
County of Middlesex, Civil Engineer, do hereby declare the nature of this inven-
tion, 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 No. 24466, dated December 20th 1893,
granted to me. In that specification the invention set forth consisted in the
addition of a lug to the top of each standard, providing a ferrule between each pair
of standards and threading a bolt through said lugs and ferrules, for the purpose
of holding the standards firmly together at the top so preventing any working out
of the top rollers. With this invention and with the invention set forth in the
prior Specification of Letters Patent granted to me, No. 13004 of 1891, if it
was required to remove the top roller in order that the rod beneath might be taken
out it was necessary to move aside the standards on each side of the rod required
to be removed in order to get the necessary space for the spindles or trunnions of
the top roller to clear the standards so as to get said roller out; in thrusting
aside the standards to get this space other standards would also be moved aside
and frequently during this movement the top rollers got out of their positions and
the set of standards and rollers required fresh building up, thus causing trouble
and inconvenience.
With my present invention in order to obviate the disadvantages above
mentioned and to enable the standards to always keep in their proper upright
positions even when rods are required to be removed, arrange that the top lug of
cach standard is vertically fluted or grooved to receive a corresponding projection
or projections on the ferrule, the ferrule being as it were dovetailed into the top
lugs of adjacent standards. The depth of each fluting or groove in each top lug
would be equal to the width, depth or amount of projection of the spindles or
trunnions of the roller so that when the bolt holding the tops of the standards
together is withdrawn the ferrule can be slipped up or withdrawn, and, the extra
width provided by the fluting of the lugs being (as before mentioned) equal to the
projection on either side of the spindle of the top roller said roller may also be
removed without disturbing the remaining standards and rollers in the set.
In the accompanying drawings, Figure 1 illustrates a side view of a roller
standard comprising my improvements. Figure 2 is a plan of a pair of standards
and Figure 3 is a part end view of same, showing the channel or groove in the top
lugs and the corresponding projections on the ferrule. Figures 4 and 5 are side
view and plan respectively of a modification in which the grooves or channels for
the passage of the roller trunnions is provided at one end of the top path the
projections from the ferrule being curved as shown.

page_text: The same letters refer to the same parts in the several figures.
a are the roller standards, b and c being respectively, the paths on which the
trunnions or spindles of the top and bottom travelling rollers revolve; d are the
channels or grooves in the top lugs e said channels extending through the top side
of paths b and being of sufficient lateral depth to allow of the passage of the
trunnions or spindles of the top roller; f is the ferrule and f1 f are the projections
thereon which fit in the grooves or channels & the ends of said projections forming,
when in position in the grooves d a portion of the upper side of top path 6 on which
the trunnions of the top roller revolve when the rod is in compression. 9 (Figures 2
and 3) is the bolt passing through the top lugs e and ferrule f.
When it is desired to remove the top roller the bolt g is withdrawn which allows
the ferrule f to be also removed, in an upward direction, thus freeing the grooves
or channels of the projections f¹ f2 on said ferrule and allowing free passage for
the trunnions or spindles of the top roller.
In Figures 4 and 5 the grooves or channels for the passage of the roller
trunnions, are shown, at the left hand end of the top path the lower end h¹ of the
projection on the ferrule filling up or closing said grooves or channels & when
the roller is in position between the standards. With this modification the removal
of the top roller is effected in a similar manner to that described with reference to
Figures 1, 2 and 3, with the exception that the ferrule is removed in a lateral
instead of in an upward direction.
Although modifications might be made to provide this result yet the essence of
the present invention is making the ferrule of such a form that the projections on the
ferrule fill up the space left by the fluting or groove on the top path on which
the top roller revolves when in action and allows its withdrawal when said ferrule
is withdrawn, no extra parts being required for a set or sets of rollers as described
in the above cited prior specifications.
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 antifriction supporting guides for rods employed in railway signalling
apparatus consisting of side standards having top and bottom paths for the
trunnions of the rollers to revolve along, top lugs, a spacing ferrule between the
standards, and a bolt passing through the top lugs and ferrule, providing a channel
or groove such as d in said top lugs such channel
or groove extend-
ing through the upper side of the top path, and projections f¹ f2 on the
ferrule f, said projections fitting in the channels d whereby the top rollers and rods
may be readily removed without disturbing the standards, substantially as herein
described with reference to the accompanying drawing.
2. In the standards of antifriction supporting guides for rods used in railway
signalling, a groove channel or passage whereby the top roller may be readily
removed, without disturbing the standards, and means for filling up or closing
said grooves, channels or passages when the top roller is in position between the
pair of standards substantially as herein set forth.
Dated this Twelfth day of March 1898.
JOHN P. O'DONNELL, Fel. Chart. Inst. P.A.,
Agent for the said Applicant,
70 & 71, Palace Chambers, Westminster, S.W.