IMPROVEMENTS IN RAILWAYS
Year: 1855

page_text: LETTERS PATENT to William Munslow, of Miles Platting, in the County
of Lancaster, Moulder, and Henry Wallwork, of the same Place, Moulder,
for the Invention of "IMPROVEMENTS IN RAILWAYS."
PROVISIONAL SPECIFICATION left by the said William Munslow and
Henry Wallwork at the Office of the Commissioners of Patents, with
their Petition, on the 21st November 1855.
We, WILLIAM MUNSLOW, of Miles Platting, in the County of Lancaster,
Moulder, and HENRY WALLWORK, of the same Place, Moulder, do hereby
declare the nature of the said Invention for IMPROVEMENTS IN RAILWAYS, to
be as follows:-
Our Invention relates to a method of restoring the proper position of the
rail when that part of the chair upon which it beds shall have become worn.
For this purpose we adapt to the chair a loose piece or pieces, which may be
removed at pleasure. These loose pieces may be of any desired shape; but a
particular method we adopt is to form them of corresponding section to one or
both sides of the rail, as well as to the bottom thereof; the two sides being,
therefore, drawn together by bolts, keys, or other ordinary fastenings, will

page_text: constitute a clip, by which the rail may be grasped; or if one side only be
provided with the loose piece, the rail may be forced against it by any ordinary
means.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Munslow and Henry Wallwork in the Great Seal!
Patent Office on the 21st May 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
MUNSLOW, of Miles Platting, in the County of Lancaster, Moulder, and
HENRY WALLWORK, of the same Place, Moulder, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of November, in the year of our
Lord One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said William Munslow and Henry Wallwork, Her especial license that we,
the said William Munslow and Henry Wallwork, our executors, administra-
tors, and assigns, or such others as we, the said William Munslow and Henry
Wallwork, our executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN RAILWAYS," upon
the condition (amongst others) that we, the said William Munslow and Henry
Wallwork, by an instrument in writing under our hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said William Munslow and Henry Wall-
work, do hereby declare the nature of our said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement and accompanying Drawing (that
:
is to say):-
Our Invention relates to a method of restoring the proper position of the
rail when that part of the chair upon which it beds shall have become worn.
One arrangement of apparatus that we adopt for this purpose is shewn in

page_text: section at Fig. 1; and in horizontal sectional plan view at Fig. 2, applied as a
oint chair. Between the lower edge of the rail a and the chair 6 an adjusting
oose piece or key c is introduced, forming a bed for the rail a to rest upon;
this loose piece or key c is formed as a clip in this instance by means of the
two side pieces d, of uniform thickness, and corresponding in shape to the
section of the rail; one side of the loose piece c beds against the jaw or cheek be
of the chair, and the other is forced against the rail a by means of a wedge or
key f; on its being driven up in the direction of the rail, the key or wedge f is
kept in the horizontal position by the projecting part g, formed on the chair 6;
the loose piece c is let in and extends across to the width of the chair b,
(as seen in Fig. 2), and secured to the same by means of the V-shaped or
dovetailed edges or sides c. When the abutting ends of two rails a are
introduced between the side clips d, and the chair is in the proper position, the
wedge may be then driven up. Instead of the loose clip piece being formed
with the two sides d, one only may be used, situate between the wedge or key f
and the rail a; in this case the jaw or cheek of the chair would be required to
correspond to the sectional form of the rail a, and instead of the keys or
wedges f being used, bolts may be so arranged as to produce the same effect.
A modification of our Invention is shewn in the sectional view, Fig. 3; and
at the horizontal sectional plan view, Fig. 4, adapted as a middle or intermediate
chair. The rail is at a, and the loose piece or key at c, conforming in shape
to the lower edge of the rail, and secured to the chair 6 by the V-shaped or
bevelled edges c*, and the projecting part h formed on the cheek or jaw of the
chair bedding against the outer side of the rail a, which is secured by means
of the curved part or clip d formed upon the loose or key piece c, aforesaid,
and which is forced down upon the rail a when the same is in its proper
position. The chairs above described may be secured to the sleepers by bolts
or other ordinary means. Figs. 5 and 6 represent views of the joint and
intermediate chairs previous to the introduction of the loose piece or key c;
and Figs. 7 and 8, corresponding views of the clip or loose pieces c, d, shewing
their form before they are placed on to the rail. We would remark that
other modifications of the loose clip piece c, d, may be made without departing
from the principle of our Invention.
Having thus described and ascertained the nature of our Invention, and the
5 manner in which the same is to be performed, we desire it to be understood
that we claim, as secured to us under the above in part recited Letters
Patent,
.
Firstly, the application of the loose adjusting clip or key piece c, d, to joint

page_text: or intermediate chairs of railways, such pieces being formed either with one or
both of the sides d, and also the arrangement of the loose piece c, d, as shewn
and described in reference to Figs. 3 and 4.
In witness whereof, we, the said William Munslow and Henry Wallwork,
have hereunto set our hands and seals, this Nineteenth day of May, in
the year of our Lord One thousand eight hundred and fifty-six.
WILLIAM MUNSLOW.
HENRY WALLWORK.
(L.B.)
(L.S.)