Improved Railway Curve Cushion Chair.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improved Railway Curve Cushion Chair.
I, JACOB EGBERT REEVES, of Yarmouth, County of Yarmouth, Nova Scotia,
Canada, Engineer, do hereby declare the nature of this invention to be as
follows:
-
My invention relates to improvements in railway chairs for use on curves,
and is intended for easing the shock and strain against outer or pressure rail
of railway curves, and preventing breakage of wheels and flanges and derail-
ment of trains and admitting of higher rates of speed on railways.
I attain these objects by using a chair of iron or steel with lips cast thereon
for holding the rail in place. The lips are placed far enough apart to allow
the rail to move slightly in a lateral direction.
A box cast upon the outer end of chair carries a spiral spring. A block or
follower, bearing against the outside of rail is held in place by this spring
and holds the rail firmly in position.
An adjusting screw is provided to give the spring any desired tension.
The operation of my device is as follows:-The chair is placed under the
rail and secured to the cross tie with the spring and follower bearing against
the outside of the rail, holding rail firmly in place but allowing rail to yield
slightly to sudden and excessive pressure, and forcing it gradually back to
place as pressure decreases, thus counteracting the effects of any sudden shocks
and strains, caused by a train rushing at high speed upon the curve.
Dated this 16th day of June 1899.
GEO. W. JOHNSON,
Agent for Jacob Egbert Reeves.
Improved Railway Curve Cushion Chair.
I, JACOB EGBERT REEVES, a British Subject, residing at Yarmouth, County
of Yarmouth, Province of Nova Scotia, Canada, 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 state-
ment:
My invention relates to improvements in railway chairs for use on curves,
and is intended for easing the shock and strain against outer or pressure rail

page_text: of railway curves, and preventing breakage of wheels and flanges and derail-
ment of trains and admitting of higher rates of speed on railways.
I attain these objects by using a chair of iron or steel with lips cast thereon
for holding the rail in place; the lips are placed far enough apart to allow the
rail to move slightly in a lateral direction.
A box cast upon the outer end of chair-and fitted with a cap and bolts to
facilitate removal and holding the same in place carries a spiral spring.
A block or follower, bearing against the outside of rail is held in place
by this spring and holds the rail firmly in position, against the inner lip of
chair.
An adjusting screw is provided to give the spring any desired tension.
The operation of my device is as follows:-
The chair is placed under the outside or pressure rail and secured to the cross
tie with the spring and follower bearing against the outer side of the rail,
holding rail firmly in place against the inner lip of chair but allowing rail to
yield slightly to sudden and excessive pressure, and forcing it gradually back
to place as pressure decreases, thus counteracting the effects of any sudden
shocks and strains, caused by a train rushing at high speed upon the curve.
In the accompanying drawing-
Figure 1 is a side elevation, Fig. 2 is a plan or top view, partly in section,
and Fig. 3 is an end elevation.
Similar letters refer to like parts in both views. The chair (A) has lips (a a)
cast thereon for holding the rail (R) in position, and between which the rail
slides in a lateral direction, space for same being left at (1).
A spring box (B), cast upon the chair forming part thereof, having a remov-
able cap (b), secured by bolts (cc) or in any other suitable manner, contains the
cushioning spring, (C), as shown in plan.
A block or follower, (1), bearing against the outside of rail (R), held in place
by the spring (C), as shown on plan and elevation, holds the rail in position.
The adjusting screw (E), bearing against washer (e), and spring (C), is pro-
vided to give the spring (C) any desired tension.
(HH) are spike or bolt holes and slots for securing the chair to the cross
ties.
The slot in the bottom of spring box marked (i) and shown by dotted lines
in the elevation is to form a drip for the escape of any water that may find its
way into the spring box.
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:
1st. A railway chair for use on railway.curves having a space left between
the lips of chair in excess of the width of base of rail carried thereon to allow
rail to move laterally between them, in combination with a spring and follower
block placed horizontally and bearing against the outer side of rail, substantially
as, and for the purpose shown.
2nd. In a railway chair, the combination of a spring and follower block
pressing against the outside of the outer or pressure rail on a railway curve,
substantially as shown, and for the purpose specified.
3rd. The combination in a railway chair of a cushioning spring held in place
by an adjusting screw and spring box, and pressing upon the follower and
rail as described and for the purpose set forth.
Dated this 16th day of June 1899.
GEO. W. JOHNSON,
Agent for Applicant. :