Improvements in Combined Tie-bars and Chairs for Railways and Tramways.
Year: 1890

page_text: Date of Applic tion, 25th Aug., 189G
Complete Specification Left, 25th June, 1891-Accepted, 25th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in Combined Tie-bars and Chairs for Railways and
Tramways.
.
I, ROBERT JOHN JONES, of The Nook, Ebbw Vale, Monmouthshire, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of that class of
combined tie-bars and chairs for railways and tramways, wherein cast iron chairs
are cast upon the extremities of a wrought iron or steel tie-bar.
According to my invention the extremities of the tie-bar, which is constructed
of wrought iron, are bent upwards at an angle, in such manner that when the
chairs are cast. thereon these bent up extremities will project through the chair seats
and form the inner clips or jaws for holding the rail, the outer clips or jaws being
cast with the chairs.
The bent up extremities of the tie-bar, passing through the chairs at an angle,
in lieu of simply entering them in a longitudinal direction as heretofore, obviate
all risk of separation; and holes, grooves, or serrations in those portions of the
tie-bar upon which the chairs are cast, hitherto considered necessary for security
may be dispensed with.
The tie-bar may be of flat grooved or other convenient section.
E. P. ALEXANDER & SON, Fels. Inst. P.A.,
19, Southampton Buildings, Chancery Lane, W.C., Agents.
COMPLETE SPECIFICATION.
Improvements in Combined Tie-bars and Chairs for Railways and
Tramways.
1, ROBERT JOHN JONES, of The Nook, Ebbw Vale, Monmouthshire, 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 :-
This invention relates to improvements in the construction of that class of
combined tie bars and chairs for railways and tramways, wherein cast iron chairs
are cast upon the extremities of a wrought iron or steel tie bar.
According to my invention the extremities of the tie bar are bent upwards at an
angle in such manner as that when the chairs are cast thereon, these bent up
extremities will project through the chair seats and form the inside clips or
jaws for holding the rail, the outside clips or jaws being cast with the chairs.
The extremities of the tie bar passing through the chairs at an angle in lieu
of simply entering them in a longitudinal direction as heretofore all risk of
separation is obviated, and holes grooves or serrations in those portions of the tie
bar upon which the chairs are cast, hitherto considered necessary for security, may
be dispensed with. The tie bar may be of flat, grooved, or other convenient
section.
In the accompanying drawings in which similar letters refer to corresponding
parts in both figures.
Fig. 1 is a side elevation partly sectional of combined tie bar and chairs constructed
according to my invention."
Big is nlan of the come.

page_text: a a are the cast iron chairs. b is the tie bar preferably constructed of wrought
iron or steel upon which the chairs a are cast. are the bent up extremities of
the tie bar which project through the upper faces or seats of the chairs a and
forin the inside clips for holding the rails c.
.
In addition to the advantages of lightness and case of laying afforded by combined
tie bars and chairs constructed as above described, the guage can be widened or
narrowed by simply hammering down or picking up the inside clips, and,, should
either of the chairs break, new chairs can be readily cast on the tie bar, the clips
defining the guage exactly in the sand when moulding; a new sleeper can also be
readily inserted at any time without picking the road up by simply bending up the
clips and allowing the rail to drop down into its place.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
The herein described construction of combined tie bar and chairs wherein the
extremities of the tie bar upon which the chairs are cast are bent upwards at an
angle so as to project through the chair seats substantially as and for the purposes
specified.
Dated this 25th day of June 1801
E. P. ALEXANDER & SON,
19, Southampton Buildings, London, W.C., Agents.