Year: 1888

page_text: Date of Application, 12th Jan., 1888
Complete Specification Left, 11th Oct., 1888
Complete Specification Accepted, 16th Nov., 188
I, JOHN IRELAND, of 11. Ireland's Lane, Dundee, in the County of Forfar, North
Britain, Machinist, do hereby declare the nature of this Invention to be as follows,
that is to say :-
My said Invention has for its object the making of an improved, simple, and
durable key or fastening for securing railway rails in their chairs, and one which is
not liable to work loose.
My improved key is, according to one modification, made in a form suitable for
being used instead of an ordinary wooden key. The body is a solid or more or less
hollowed casting of iron, malleable iron or steel, and is made with its outer side
shaped to suit the chair jaw and having two slightly projecting parts. One of the
projecting parts, between the middle and narrower end of the key, is convex and
merges into the general surface with inclines fore and aft.
The other projecting
part, between the middle and broader end of the key, is made with a square or blunt
shoulder and is intended to prevent the key from being driven too far, by
encountering the chair jaw. The inner side of the key body is recessed to receive
a plate of strong spring steel which is made convex so as to bear with elastic
pressure upon the web of the rail. This spring steel plate may be quite loose;
or it may be retained in connection with the key body by one or two small
clips or pins or other devices arranged in a manner to allow it to yield to pressure.
The spring steel plate may be applied to the outer side of the key body; but
when the key body is made of metal I prefer to apply it to the inner side.
According to another modification the key body is made of wood and the spring
steel plate is applied at the outer side and made with a bent end to protect the
broad end of the key body from the driving stroke. The projections described as
on the outer side of the body in the first modification are made upon the steel
plate by embossing or partial punching, in the modification having a wooden body.
Dated this Eleventh day of January 1888.
EDMUND HUNT,
Applicant's Agent.

page_text: Improvements in Keys or Fastenings for Railway Chairs.
I, JOHN IRELAND, of 11 Ireland's Lane, Dundee, in the County of Forfar, North
Britain, Machinist, 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, that is to say:→
My said Invention has for its object the making of improved, simple, and durable
keys or fastenings for securing railway rails in their chairs, and which are not liable
to work loose.
My improved keys are, according to one modification made in a form suitable for
being used instead of ordinary wooden keys. The body of each key is a solid or more
or less hollowed casting of iron, malleable iron, or steel, shaped as shown in figures, 1,
and 2, on the accompanying sheet of explanatory drawings. Figure, 1, is an elevation
of the outer side of the key and figure, 2, is a horizontal section. In the example
thus shown the body, A, of the key is hollow.
The outer side of the body, A, is shaped to suit the chair jaw, and has two slightly
projecting parts, B, C. One, B, of the projecting parts between the middle and the
narrower end of the key is convex and merges into the general surface with inclines
fore and aft. The other projecting part, C, is between the middle and the broader end
of the key, and is made with a square or blunt shoulder intended to prevent the key
from being driven too far, by encountering the chair jaw.
The inner side of the key body, A, if otherwise solid, is recessed to receive a plate, D,
of strong spring steel which is made convex so as to bear, with elastic pressure upon
the web of the rail. When the key body, A, is made hollow as shown the spring steel
plate, D, bears against smugs or supports, E, cast in the internal corners of the key
body. The spring steel plate, D, may be quite loose; or it may be retained in connec-
tion with the key body, A, by one or two small clips, or pins, or other devices arranged
in a manner to allow it to yield to pressure.
The spring steel plate, D, may be applied to the outer side of the key body, A ; but
when the key body, A, is made of metal I prefer to apply it to the inner side.
According to another modification shown in figures, 3, and 4, which are an outside
elevation and a plan, the key body, G, is made of wood, and the spring steel plate, D,
is applied at the outer side and made with a bent end, H, to protect the broad end of
the key body, G, from the driving stroke. The projections, B, C, (described as on the
outer side of the key body in the first modification shown in figures, 1, and 2) are
made on the steel plate, D, by embossing or partial punching, in the modification
having a wooden body, G, shown in figures, 3, and 4. To prevent wear by the action
of the spring steel plate, D, on the wooden body, G, near its narrow end there is fixed
to the wooden body a metal wearing and protecting piece, J.

page_text: Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is ―
1. Improved keys or fastenings for railway chairs constructed substantially as
herein before described with reference to figures, 1, and 2, of the accompanying
drawings.
2. Improved keys or fastenings for railway chairs constructed substantially as
hereinbefore described with reference to figures, 3, and 4, of the accompanying
drawings.
EDMUND HUNT,
Applicant's Agent.