Year: 1886

page_text: I, ANGUS MURRAY, of The Anderston Foundry, Glasgow, in the County of
Lanark, North Britain, Engineer, do hereby declare the nature of this Invention
to be as follows, that is to say :-
This Invention comprises improved sleeper-chairs and fastenings specially
designed to be used with the Vignoles or flat-bottomed rail.
The improved sleeper-chairs are of the round or oval or other convenient contour
in plan, and are connected by the usual tie or gauge bars. For holding one edge
of the bottom flange of the rail, each sleeper-chair is formed with a rib or
projection having a groove-like recess on its inward side for the edge of the rail
flange to enter or engage in. For securing and holding the other edge of the
rail flange there are employed either one or more screw pins or bolts, or a
clipping piece fixed by a key or wedge. When a screw pin is used it is screwed
down into a nut either cast in, or held in a dovetailed or equivalent recess made
for it in the sleeper-chair; and one side of the head of the pin bears on the rail
flange. When a clipping piece and key are used a suitable recess or cavity is
formed in the top of the sleeper-chair to receive both clipping piece and key, the
outer side of the recess against which the outer side of the key bears being slightly
dovetailed to prevent the key from rising out of its place. The clipping piece is
made with a lip or projecting rib to bear on the top of the rail flange and its
lower part is according to one modification, of a dovetailed form fitting the inner
side of the recess in the top of the sleeper-chair, such inner side being correspondingly
dovetailed. In another modification of the clipping piece it is made with a lower
lip or projecting rib to bear up against an undercut part in the recess in the top of
the sleeper-chair whilst the upper lip bears down on the rail flange. The part
between the lips does not bear, and the bearing parts of the lips being slightly
inclined the action of the key in wedging the clipping piece inwards makes it clamp
the rail flange firmly down on its seat.
Each sleeper-chair may be made with a single bearing surface or with two
bearing surfaces; and in the latter case, the fastenings may be applied at the
bearing surfaces or between them.
Dated this thinte fient down of Da
100%

page_text: Improvements in Sleeper-chairs and Fastenings for Railways.
I, ANGUS MURRAY, of The Anderston, Foundry,, Glasgow, in the County of
Lanark, North Britain, 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, that is to say :-
__
My said Invention comprises improved sleeper-chairs and fastenings specially
designed to be used with the Vignoles or flat-bottomed rail.
The improved sleeper-chairs are of the round or oval or other convenient contour
in plan, and are connected by the usual tie or gauge bars. For holding one edge.
of the bottom flange of the rail, each sleeper-chair is formed with a rib or projection;
having a groove-like recess on its inward side for the edge of the rail flange to
enter or engage in. For securing and holding the other edge of the rail flange
there are employed either one or more screw pins or bolts, or a clipping piece
fixed by a key or wedge. The peculiarities, of these improved fastenings are
hereinafter described with the aid of five sheets of explanatory drawings which.
are hereunto appended, each sheet comprising a plan and a vertical section of a
sleeper-chair and showing one modification of my improvements, the same reference
letters being used to mark the same or like parts wherever they are repeated.
"
In the modification shown in figures, 1, and 2, sheet, 1, whilst, one edge of the
bottom flange of the Vignoles rail, V, is retained in a recess or groove formed at
the inner side of a rib, R, formed on the top of the sleeper or bowl, B, at one side
of the seat, S, on which the bottom of the rail rests, the other edge of the bottom
flange is held down by two bolts or screw pins, P, which bear on a clipping plate, C,
the inner under edge of which bears on the rail flange.. Each pin, P, is screwed,
down into a nut, N, which may either, be cast in or be held as shown in a recess
made for it, in a thickened part of the top of the sleeper-chair.
In the modification shown in figures, 3, and 4, sheet, 2, the bottom flange of the
rail, V, is retained by a groove in the inner side of a rib, R, formed along one side;
of the seat,, S, on the bowl, B, whilst the other side is held by a clipping piece, C,
which is a short length cut out of a bar specially rolled of a crescent-like or
channel-like cross section. The clipping piece, C, is made with lips or flanges the.
upper one bearing on the top, of the bottom flange of the rail, V, whilst the, under
one engages under a part of the chair seat, S, a recess being formed for it as
indicated by dotted lines in figure, 4. The clipping piece, C, is secured by a key,
or wedge, W, driven in a direction parallel. to the rail between the outer side of
the clipping piece, C, and an abutment, A, formed for it on the top of the sleeper
chair. The inner faces of the lips or flanges of the clipping piece, C, are inclined.
to each other so as to clamp the rail, V, and seat, S, the more tightly the, more the.
clipping piece is wedged inwards by the key, W. In figure, 4, the section is taken
where the gauge or tie bar, G, passes and a notch is cut in the under side of the
clipping piece, C, for the gauge bar to pass, across. In this example the gauge
bar, G, is shown as adjusted by mean of a rectangular notch formed in its edge
and which engages upon a projection, D, formed for the purpose on the sleeper
chair. Notches are formed on both edges of the gauge bar, G, in slightly different
positions and the bar is turned with that one of the notches downwards which
gives the most accurate gauge. When the gauge bar, G, has been placed in

page_text: position the clipping piece, C, locks it the notch in its under side being such as to
prevent the bar from rising clear of the projection, D.
In the modification shown in figures, 5, and 6, sheet, 3, the clipping piece, O, is
of a modified form being made with an upper lip or flange to bear on the top of
the rail flange, and with its lower part of a dovetail section to engage in a dove-
tail recess formed at the side of the chair seat, S. The recess is not so deep as in
the modification next herein before described; but the dovetail form causes the
clipping piece, C, to be securely held down when the key or wedge, W, has been
driven into its place. The gauge bar, G, shown in this example is like that of the
next preceding example but is prevented from rising by the key or wedge, W.
In the modification shown in figures, 7, and, 8, sheet, 4, the rail, V, is represented
as having for its supports two bearing surfaces or seats, S, on which thin pieces of
wood or other slightly elastic material are placed, whilst the lateral fastenings or
holding parts are applied to the rail at the part of it which is between the two
seats, these lateral fastenings being the same as those of the next preceding
example. Lateral fastenings may however be applied at both the seats if
preferred.
In the modifications shown on sheets, 2, 3, and 4, the clipping pieces, C, being
placed in sockets or recesses cannot move end ways; and therefore any longitudinal
movement or creeping of the rail cannot affect the condition of the fastenings.
In the modificaton shown in figures, 9, and 10, sheet, 5, the clipping part is in
two pieces, C1, C2. One part, CI, which has its lower part of a dovetail form to
engage in a recess or opening of corresponding form, is first placed in position and
then the other part, C2, is passed down over it and a tail or projection on its
under side entering down between the outer side of the dovetail part, C1, and the
outer side of the recess locks the part, C 1, in the recess. The top of the second
part, C 2, is of a flat form with an opening in its middle up through which the
first part, C 1, passes whilst its inner edge bears down on the rail flange. The
parts are finally fixed or locked by a key or wedge, W, which is passed across the
top of one clipping part, C2, and through a slot in the other part, C 1.
In any of the modifications herein before described any suitable known form
of key or wedge, W, may be used, and different forms are shown in the several
modifications as examples of some of those which are available.
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 improved sleeper-chair and fastenings constructed and combined
substantially as hereinbefore described with reference to sheet, 1, of the accom-
panying drawings.
•
2. The modification substantially as hereinbefore described with reference to
sheet, 2, of the accompanying drawings.
3.-The modification substantially as herein before described with reference to
sheet, 3, of the accompanying drawings.
4. The modification substantially as herein before described with reference to
sheet, 4, of the accompanying drawings.
5. The modification substantially as hereinbefore described with reference to
sheet, 5, of the accompanying drawings.
Dated this first day of May 1886.
EDMUND HUNT,
Applicant's Agent.