IMPROVEMENTS IN RAILS, RAIL GUARDS, AND CHAIRS FOR TRAM WAYS
Year: 1884

page_text: PROVISIONAL SPECIFICATION,
I MICHAEL HOLROYD SMITH of Halifax in the County of York, Consulting and
Mechanical Engineer do hereby declare the nature of my said invention for
"IMPROVEMENTS IN RAILS, RAIL GUARDS, AND CHAIRS FOR TRAM WAYS" to be as
follows:-
This invention consists of an improved combination of rail rail guard and chair
for tram ways the rails and rail guards being reversible so as to turn and change
the working, and wearing surface without displacing the chairs or disturbing the
strect or road surface.
According to this my said invention in place of the grooved mil usually
employed I use a tread rail and guard rail, the tread rail preferably double headed,
the guard rail is. of Y form having three equal limbs The chair is so formed
that the guard rail is held with its inner limb horizontally, and when the tread
rail is held in position by a wooden wedge it presses against the outer edge of the
horizontal limb and forces the adjacent angle of the Y against projection of the
chair and so holds it in such position that the upper limb of the Y forms.
the guard and leaves the required groove.
Various forms of tread rails may be used preferably double headed, or reversible
and the guard rail being triangular is capable of three reversals.
Dated this 7th day of October 1884.
WALTER BRIERLEY,
Crossley Street, Halifax,
Agent for the Applicant.
COMPLETE SPECIFICATION,
I MICHAEL HOLROYD SMITH, of Halifax, in the County of York, Consulting and
Mechanical Engineer, do hereby declare the nature of my said invention for
IMPROVEMENTS IN RAILS, RAIL GUARDS AND CHAIRS FOR TRAM. WAYS" and in
what manner the same is to be performed, to be particularly described-and
ascertained in and by the following statement:-
•
This invention consista, of an improved combination of rail, rail guard, and
chair, for tram ways, the rails and rail guards, being reversible, so as to turn.

page_text: and change the working and wearing surface, without displacing the chairs or
disturbing the street or road surface.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had to the accompanying drawings
forining a part of this specification in which :-
•
Fig. 1 is an elevation of tread rail, guard rail, chair, and wedge.
Fig. 2 is a plan of the same.
Fig. 3 is a section through A. B. of Fig. 2.
Figs. 4 and 5 shew sections of tread and guard rails.
According to this my said invention in place of the grooved rail usually employed,
I use a trend rail 1, and guard rail 2, the tread rail 1, being preferably double
headed, as shown in the several Figures, the guard rail 2 is of Y form, having
three equal limbs, 4, 5, 6-The chair 7, is so formed, that the guard rail 2, is held
with its inner limb 4 horizontally, and when the tread rail 1, is held in position
by a wooden wedge 8, the tread rail presses against the outer edge of the horizontal
limb 4, and forces the adjacent angle 9, of the Y, against projections 10, 11, of the
chair 7, or the parts 10 and 11 may be movable, forming a wedge, and so holds it
in such position that the upper limb 6, of the Y, forms the guard, and leaves for
tho flanges of the wheels, the required groove 12.-The hollow or box chairs 7, are
formed as shewn, so that the opposite side to the wedge 8, may be filled with
concrete as at 13-The tread and guard rails, as above admit of "breaking joints"
when the line is being laid.
Various forms of tread rails may be used preferably double headed, or reversible,
and the guard rail being triangular is capable of three reversals.
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 chair, tread rail, and Y guard rail, in combination, and as shown by
drawings, and herein fully described.
2. The Y guard rail, in combination with a chair, having angled projections, 3
such as 10, 11, and as described and illustrated by drawings annexed.
3. The Y rail for purpose herein described, and as illustrated.