IMPROVEMENTS IN THE METHOD OF SECURING THE WEDGES IN RAILWAY CHAIRS
Year: 1886

page_text: Date of Application, 7th May, 1886.
Complete Left, 7th Feb., 1887.
Complete Accepted, 7th May, 1887.
Chairs.
I, Thomas Spir, of 15 Tinsley Road, Sheffield, in the County of York, Commission
Agent, do hereby declare the nature of my said invention for "IMPROVEMENTS IN THE
METHOD OF SECURING THE WEDGES IN RAILWAY CHAIRS to be as follows:-
This invention relates to improvements by which the wedges of railway chairs are,
when driven home, locked firmly in their place.
In carrying my invention into effect I cast an ordinary chair as at present in use
and for which wooden wedges are employed, with a recess in the side of the said
chair into which I place a spring; when the wedge which will be made straight instead
of taper, is driven home the spring holds it firmly in position.
By employing a spring in the above sense it allows for the contraction and expansion
of the wedges as they vary to the action of the weather.
To adapt my invention to the chairs at present in use the spring is made to wrap
over each side of the chair and may be constructed with or without a lip as
deemed necessary, to screw or nail into the wedge for the purpose of gaining greater
security.
Or a screw bolt may be placed through the centre of the chair, spring and into the
wedve.
GARLICK & MCGOWAN,
Agents for the Applicant.

page_text: Improvement in the Method of Securing the Wedges in Railway
Chairs.
I THOMAS SPIR late of 15 Tinsley Road now of 35 West Street Sheffield in the
County of York General Dealer, 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:-
Improvements in the method of securing the wedges in Railway chairs to be as
follows:-
This invention relates to improvements by which the wedges of Railway chairs are,
when driven home locked firmly in their places.
In carrying my Invention into effect I cast an ordinary chair as at present in in
use and for which wooden wedges are employed with a recess in the side of the said
chair into which I place a spring Fig. 3 B when the wedge will be made straight
instead of taper is driven home the spring holds it firmly in position.
By imploying a spring in the above sence it allows for the contraction and expan-
sion of the wedges as they vary to the action of the weather.
To adapt my invention to chairs at present in use the spring is made to wrap over
each side of the chair and may be constructed with or without a lip as deemed
necessary to screw or nail into the wedges for the purpose of gaining greater
security, or a screw bolt may be placed through the centre of the chair, spring, and
into the wedge.
The spring may be Bow, Spiral, or other convient shape.
The drawings Fig. 1, shows a Railway Chair with a section of Rail, R. in position
the grove or recess marked A. into which I insert a spring B. and, in ordinary chairs, L
use a spring laped over each side of chair as C. When these springs are in their
position the ordinary wooden wedge is driven home in the usal way and is then held
fast by the springs instead of being allowed to work loose by the Verbiration of the
trains and the expansion and contraction caused by the weather. The new chair can
either have a screw bolt or otherwise. Fig. 2 shows a ground plan of Railway
chair with recess cast in and spring Fig. 3. B. wooden wedge W, and a section of
Rail R.
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. The securing of wedges in Railway chairs by means of Springs Figs. 3. B, 4. C.