An Improved Railway Key or Wedge Applicable to other Purposes.
Year: 1887

page_text: Date of Application, 4th Feb., 1887
Complete Left, '3rd Nov., 1887
Complete Accepted, 6th Dec., 1887
PROVISIONAL SPECIFICATION.
An Improved Railway Key or Wedge Applicable to other
Purposes.
L, HENRY FORMAN, of Chellaston, in the county of Derby, Farmer, do hereby
declare the nature of this invention to be as follows :-
This invention has for its object the construction of a key or wedge for securing
rails in their chairs, but which is also applicable for other purposes where a wooden
key or wedge is used to secure other articles between opposing surfaces, so that
varying atmospheric or like changes shall not tend to loosen such key or wedge.
I form such key or wedge with the grain of the wood running longitudinally.
1 insert or fix in the body of the key or wedge and at a right or other angle to its
length a plug, bar, strip or other form, or plugs, bars, strips or other forms of wood
or other material cut, formed or shaped so that when inserted the said plugs, bars,
strips or forms have the grain of their wood at a right or other angle with the grain
of the wood of the key or wedge. I prefer to taper such bars, strips or forms, the
holes in which they fit being also bored taper.
I do not bind myself to any particular mode of fitting such plugs, bars, strips or
forms into the key or wedge. The effect of the above arrangement is that if the key
or wedge should expand or contract the transverse plugs, bars, strips or other forms
will still bear on the rail and chair or other opposing surfaces, and so hold the rail or
other object firmly.
The ends of the plugs, bars, strips or other forms may project from the key or
wedge, or be flush or nearly flush with the sides thereof.
Dated this 4th day of February 1887.
POPPLEWELL, COLTON & Co.,
Agents for the Applicant.

page_text: 1 HENRY FORMAN of Chellaston in the county of Derby Farmer, 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
This invention has for its object the construction of a key or wedge for securing
rails in their chairs but which is also applicable for other purposes where a wooden
key or wedge is used to secure other articles between opposing surfaces so that
varying atmospheric or like changes shall not tend to loosen such key or wedge.
The accompanying drawing shews a perspective view of a railway key constructed
according to my invention.
I form such key or wedge A with the grain of the wood running longitudinally.
I insert or fix in the body of the key or wedge and at a right (or other) angle to its
length a plug bar strip or other form or plugs bars strips or other forms B B B of
wood or other material cut formed or shaped so that when inserted the said plugs
bars strips or other forms have the grain of their wood or material at a right or other
angle with the grain of the wood of the key or wedge and I prefer to taper such plugs
bars strips or other forms, the holes in which they fit being also hored taper. The
plugs bars strips or other forms may be driven tightly into the holes or be secured
therein by glue or other suitable substance or compound.
I do not however bind myself to any particular mode of fitting such plugs bars
strips or forms into the key or wedge.
The effect of the above arrangement is that, if the key or wedge should expand or
contract, the transverse plugs bars strips or other forms will still bear on the rail and
chair or on the other opposing surfaces to which the same may be applied and so bold
the rail or other object to be secured firmly.
The ends of the plugs bars strips or other forms may project from the key or wedge
or be flush or nearly flush with the sides thereof. The jaw of the chair is shewn in
dotted lines.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what 1
claim is
A key or wedge for securing rails in their chairs (or for such like purposes where
an object has to be held between opposing surfaces) formed of wood and having plugs
bars strips or other forms of wood or suitable material inserted into the body of the
key or wedge at a right or other angle to the grain of its wood substantially as and
for the purposes described.
2nd day of November 1887.
POPPLEWELL, COLTON & Co.,
Agents for the Applicant.