An Improved Railway-chair.
Year: 1893

page_text: Date of Application, 17th Jan., 1893
Complete Specification Left, 16th Oct., 1893-Accepted, 17th Jan., 1894
PROVISIONAL SPECIFICATION.
An Improved Railway-chair.
We, WILLIAM MELLIS BROWN, Frame Turner, and DAVID WHITEFORD,
Engineer, of 12, High Southwick, Sunderland, do hereby declare the nature of
this invention to be as follows:-
Our invention relates to an improved railway-chair and has for its object to
dispense with the use of a wedge or key and to so construct the chair that the
greater the pressure upon same from above, the more securely will the chair grip
and hold the rail-plate, in a perfectly perpendicular position.
According to our invention we construct the bed-plate of the improved chair in
two parts, each part having one vertical jaw thereon.
One portion of the bed-plate is constructed to form a female joint and the other
part, the male joint, which latter fits into the former and is held secure by means
of a rivet, bolt or other means passing transversely through both.
The forward part of the male joint is bevelled as is also the corresponding
recessed part of the female joint against which the said forward part of the male
joint presses, to prevent the centre of the bed-plate sinking or going out of the
horizontal, when pressure is put upon same.
When the two parts of the bed-plate are joined together as before described,
the two jaws on the upper surface of same are brought in such a position that they
grip the rail securely between them. These jaws may be fashioned to conform
with the shape of any class of rail, and may be strengthened by back-bones or
other suitable means, if desirable.
The bed-plate of the chair may be lightened by channelling or champering the
parts of same upon which the rail-plate does not rest.
Dated this 17th day of January 1893
HUGHES, SON & Co.,
38, Chancery Lane, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Railway-chair.
WILLIAM MELLIS BROWN 12 High Southwick Sunderland Frame Turner,
DAVID WHITEFORD, Engineer, 5, Shakespeare Street, High Southwick, late of
12 High Southwick, Sunderland, 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:-
Our invention relates to an improved railway chair and has for its object to
dispense with a wedge or key, and to so construct the chair that the rail A. rests
on joints B & C. and the greater the pressure upon rail A from above the more
securely will the chair grip and hold the rail plate A in a perfectly perpendicular
position.
According to our invention we construct the bed-plate B & C. of the improved
chair in two parts each part having one vertical jaw D & E thereon.
One portion of the bed-plate B is constructed to form a female joint B, and the
other part, the male joint C. which latter fits into the former and is held secure
by means of a rivet F, bolt or other means passing transversely through B & C.
[Price 8d.1

page_text: The forward part of the male joint C. is radiused as is also the corresponding
recessed part of the female joint B.
When the two parts of the bed-plate B. & C. are joined together as before
described, the two jaws D & E on the upper surface of same are brought in such
a position that they grip the rail A securely between them. These jaws D & E
may be fashioned to conform with the shape of any class of rail, and may be
strengthened by back-bones or other suitable means, if desirable.
The bed-plate B. & C. of the chair may be lightened by channelling or
champering the parts of same upon which the rail plate A does not rest.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed we declare that what we
claim is,
1. The opening and closing of the chair by means of the joint B & C. as before
described thereby dispensing with key or wedge.
Dated this 13th day of October 1893.
WILLIAM MELLIS BROWN.
DAVID WHITEFORD.