OR IMPROVED RAILWAY CHAIR AND APPARATUS CONNECTED THEREWITH FOR SECURING RAILS IN CHAIRS
Year: 1884

page_text: I JOHN POYSER of Sherwood Riso, Mansfield in the County of Nottingham,
Clerk, do hereby declare the nature of my invention for NEW OR IMPROVED
RAILWAY CHAIR AND APPARATUS CONNECTED THEREWITH FOR SECURING RAILS IN
CHAIRS to be as follows:-
The object of my invention is to provide a chair and apparatus in connection
therewith for securing more efficiently tram and railway rails in chairs. The rail
may be constructed in the usual way. The chair is cast with three jaws. One jaw
is fixed in the usual manner and formed so as to receive the rail, the other two are
fixed so as to be parallel to one another, the inner end of cach being at right
angles to the rail. The outer ends are connected and such being the case the two
form practically one jaw, The inner side of each of the two jaws is grooved about
midway for the reception of a cast iron block hereinafter mentioned. After the
rail has been placed in position, the key, (which may be made either of metal or
wood, and which is formed to fit the rail,) is then inserted between the two jaws
and a cast iron block, provided with a shoulder piece on either side, (to fit in the
grooves of the two jaws hereinbefore mentioned,) is then driven downward into its
place, behind the key, forcing the same against the rail and thereby holding it
firmly in position.
If preferred, a bolt may be passed horizontally thro' the sides of the jaws and
cast iron block, the bolt being fastened on the other side by means of a split pin
in the usual way. The cast iron block, which holds the key in position, is provide !
with a small projection on the top, in the centre, thro' which a hole is cast in order
that it may be taken out (when necessary to release the rail) by means of a hook.
The accompanying drawings illustrate the application of my invention and in
order that they may be more completely understood, reference is given to the
letters and figures marked thereon.
Fig 1 is a side elevation of my improved chair complete.
Fig 2 is a plan of the chair complete, with a portion of rail in position.
Fig 3 is a side elevation of the key.
Fig 4 is a side elevation of the cast iron block and

page_text: A is the rail. B is the chair, C the outer jaw, D D the two inner jaws, in the
inner side of each of which, is cast the groove M as shewn by the dotted lines in
Fig 1. E is the key which is passed up to the rail between the two jaws D D as
shewn in figures Nos 1 & 2 and F is the cast iron block which is driven downward
between the two jaws D D behind the key E, Fig 2 the shoulder pieces L L cast
on either side of the said cast iron block fitting in the grooves M, (Fig 1). This
cast iron block has also a projection N on the top thro which a hole is cast for the
purpose of being lifted out of its bed with a hook. G is a bolt passing horizontally
thro the jaws D D and the cast iron block F. H H are the wooden pegs aud
I I are the iron spikes for holding the chair in position on the sleeper and K is
the connection between the jaws D D.and by which the said jaws D D are
strengthened.
By making the chair wider it may be used as a substitute for fish plates and
bolts and is applicable not only to ordinary chairs but to other kinds such as
intermediate, crossing, point and check rail chairs.
My improved chair is also applicable to tramways

page_text: "
J, JOHN POYSER of Sherwood Rise, Mansfield in the county of Notts, clerk, do
hereby declare the nature of my invention for "A NEW OR IMPROVED RAILWAY
CHAIR AND APPARATUS IN CONNECTION THEREWITH FOR SECURING RAILS IN CHAIRS,"
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
The object of my invention is to provide a chair and apparatus in connection
therewith for securing railway and tramway rails more efficiently than has been
done hitherto.
The rail may be of any of the sections usually employed.
The chair is provided with three jaws one of the said jaws is shaped to receive
one side of the rail in the usual way, and the other two are placed parallel to each
other on the opposite side of the rail; and their outer ends being connected by a
cross piece they practically form one jaw-the inner side of each of the said two
jaws is grooved vertically about midway, and a metal block having projections to
fit the said grooves is provided to slide vertically between the jawe-Aftor the rail
has been placed in the chair with one sido abutting against the single jaw, a key
formed either of metal or wood and shaped to fit the rail is inserted between the
jaws on the other side, and tho aforesaid inetal block is then driven down between
the jaws and behind the key, thus forcing the latter against the rail and securing
them firmly in position.
•
If desired, a bolt may be passed horizontally through the sides of the jaws and
the metal block, such bolt being secured by any suitable device such as a head at
one end and split pin at the other.
The metal block has a projection provided at the top through which a holo is
formed, to enable the said block to be extracted by means of a hook or rod.
In order more clearly to explain the nature of my invention I will now proceed
to further describe it by reference to the accompanying sheet of drawings.

page_text: The jaws D D are connected by the cross-piece K, cast in one piece with them,
so that they practically form one jaw.
E is the wooden or metal key, shaped to fit the rail A and inserted between the
jaws D D.
F is the metal block which is driven down behind the key E.
The said block F is provided with shoulder pieces or projections L L to fit into
the grooves M M in the jaws D D-N is a projection, on the top of the metal
block F, provided with a hole to enable the said block to be raised out of its seat
by means of a hook or bar.
G is a bolt passing horizontally through holes in the jaws D D and block F to
prevent the said block rising, but in practice I do not find that it is necessary to
employ any such description of fastening.
Although I have shewn my improved chair as designed for a double headed rail,
it is obvious that by modifying the forms of the faces of the single jaw, and of the
key which abut against the rail, and of that part of the bed of the chair on which
the rail rests, that it can be adapted to any other section of rail desired.
By increasing the width of the chair it can be used as a joint chair, and it is
applicable not only as an ordinary chair but may easily be modified to serve as a
crossing, point or check-rail chair-My arrangement of jaws may also be combined
or cast in one piece with any desired form of cast iron sleeper, such as the well.
known "pot-sleeper" for instance, or the jaws may be formed separately and
secured by rivets, bolts and nuts or other suitable devices to any desired form of
cast iron, wrought iron or steel sleeper.
My invention may be employed in the construction of trainways as well as of
-railways.
I wish it to be understood that I do not necessarily confine myself to the precise
details of construction herein set forth.
•
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. Tho construction of a chair, for securing railway or tramway rails, having an
ordinary jaw C, two jaws D D a key E and a block F, substantially as set forth.
2. The combination of an ordinary jaw C and the improved jaws D D with any
desired form of cast-iron sleeper, by casting them in one pieco therewith and the
use with the same of the key E and block F, substantially as set forth.
3. The combination of an ordinary jaw Cand the improved jaws D D, with any
desired form of cast-iron, wrought iron or steel sleeper, by securing them thereto
with rivets, bolts and nuts or other suitable devices, and the use with the same of
the key E and block F, substantially as set forth.
Dated this twenty fourth day of March 1885,
AMBROSE MYALL,
Agent for the Applicant.