Year: 1887

page_text: I, HARRY JONES HARMAN, of 36 Gaisford Street, London, N.W. in the County of
Middlesex Civil and Mechanical Engineer, do hereby declare the nature of this
invention to be as follows:
As applied to an ordinary chair my improvement consists in placing in the opening
usually provided for the wood key a suitable shaped pieco of metal preferably of cast
iron partially filling up the opening, that part immediately next the Rail being filled
by a key preferably made of steel which is driven in after the filling in piece has been
placed in position. I make the filling in piece of a suitable shape on one side to fit
the Jaw of the chair and the opposite side of a vertical concave curved form. I also
provide a lip or projection on each end to overlap the Jaw of the chair these lips
being for the purpose of preventing any displacement of the piece by vibration
or during the driving of the metal key. A suitable support is formed when
necessary on the underside to prevent displacement of the piece after it is placed in
position and before the metal key is inserted. The upper side is formed of any
suitable shape preferably of a flat form. I make the centre part of the key of a
rectangular section similar to a flat bar bent to a suitable curved form to fit the
concave curved part of the filling in piece. Each end of the key immediately
adjoining the centro part is formed straight for a short distance in length and bears
against the rail when the key is in position. The straight parts are hollowed out in
the centre of their section longitudinally for the purpose of clearing any raised
projections or letters on the Rails. In putting the parts together, the filling in
piece is placed in position by sliding it in between the Rail and the Chair Jaw, and
the key is then inserted and driven in until the curved part comes into position
against the curved part of the filling in piece. In driving in the key it springs out
of shape-viz.-becomes flatter, so far as is sufficient to permit it to pass the narrowed
opening left between the Rail and filling in piece after passing which it partially or
wholly returns to its previous form and presses tightly against the rail and through
the filling in piece against the Jaw of the Chair.

page_text: When applying my improved key to chairs or other contrivances specially made
and adapted to it, I prefer to make the part of the filling in piece fitting against the
Jaw of the chair or other contrivance of a diagonal cylindrical or curved form and
the lips are then dispensed with. This formation permits of the filling in piece having
a sliding motion when placing the key in position thereby greatly facilitating the
operation.
The parts forming my invention are applicable to and may be used in con-
junction with lugs Jaws or similar contrivances which are attached to sleepers in
place of the usual entire chair and with flat bottomed or double headed rails. The
parts forming my invention may be constructed of any suitable metal, material,
mineral, or substance.

page_text: COMPLETE SPECIFICATION.
Fastening Railway Rails in Chairs, Jaws, or like Contrivances.
I HARRY JONES HARMAN of 36, Gaisford Street, London, N.W. in the County of
Middlesex Mechanical Engineer do hereby declaro 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:—
As applied to an ordinary Railway Chair my improvements consists in placing in
the opening usually provided for the wood key a suitablo shaped piece of metal or
other substance preferably cast iron partially filling up the opening in that part
adjoining the Jaw of the Chair the remaining portion adjacent to the Rail being filled
by a key preferably made of Steel which is driven in after the filling in piece has been
placed in position.
In the accompanying Drawing Figures 1. 2. and 3. illustrate this form of my
improvements.
Figure 1 is a transverse elevation Figure 2. is a longitudinal elevation and Figuro 3.
is a sectional plan through the line y in the transverse elevation. Like letters
denote like parts in these threo Figures.
I mako the filling in piece B of a suitable shape on one side to fit the jaw of the
Chair A' and the opposite side adjoining the key C of a vertical or inclined form
vertically and of a concave or other suitablo curved shape horizontally. I make on
each end a lip or projection to overlap the jaw of the Chair these lips serving to
prevent any displacement of the piece by vibration or during the driving of the key C.
A suitable support is formed when necessary on the underside of this filling in piece
to prevent displacement of the piece after it is placed in position and before the key is
inserted. The upper sido of the filling in piece B is formed of any suitable shape
preferably of a flat form.
I make the centre portion of the key of a suitable section preferably rectangular
similar to a flat bar bent to a suitable curved form longitudinally to fit the concavo or
other suitable curved part of the filling in piece B. and vertically of a vertical or
inclined form similar to the adjoining filling in piece B.
Each end of the key immediately adjoining the central portion is formed straight
longitudinally for the remaining portion of the length and vertically to bear against
the Rail when the key is in position. The straight portions are hollowed out in the
centre of their section longitudinally for the purpose of clearing any raised projections
or letters on the Rail.
In putting the parts together the filling in piece B is placed in position by sliding
it in between the Rail and the Chair Jaw A¹ and the key C is then inserted and driven
in until the curved part comes into position against the curved part of the filling in
piece B. In driving in the key C it springs out of shape viz., becomes flatter so far
as is sufficient to permit it to pass the narrowed opening between the Rail and filling

page_text: in piece B after passing this point it partially or wholly returns to its previous form
and presses tightly against tho Rail and through the filling in piece B against the
jaw A of the chair.
When applying my improved key to Chairs or other contrivances specially made
and adapted to it I prefer to make the part of the filling in piece fitting against the
jaw of the Chair or other contrivance of a diagonal form vertically and a cylindrical
or curved form horizontally and the lips hereinbefore described are then dispensed
with. Figures 7 and 8 in the accompanying Drawing show this form of filling in
piece B. Figure 7 is a transverse elevation and Figure 8 is a plan.
This formation permits of the filling in piece B' having a circular sliding motion
when placing the key in position thereby facilitating the operation.
The parts forming my Invention are applicable to and may be used in conjunction
with lugs jaws or similar contrivances which are attached to sleepers in place of the
ontire chair and with flat bottomed or double headed Rails.
Figures 4. 5 and 6. in the accompanying Drawing shew one method of applying
my improved key with flat bottomed Rails. Figure 4 is a transverse elevation.
Figure 5 is a longitudinal elevation and Figure 6 is a plan. Like letters denoto like
parts in these three Figures.
The filling in piece herein before described is dispensed with and the jaw D is formed
in that part immediately adjoining the key E of a suitable curved form to fit the
central curved and inclined portion of the key E. The jaw D is attached to the
sleeper by any suitable means and the key E is thereafter driven into its place.
The curvature of the key effectually provents it working out by vibration and it
cannot be detached unless intentionally driven out.
The parts forming my Invention or used in connection therewith may be constructed 2
of any suitable metal material mineral or substance.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same may be performed I declare that what I claim is :-
1. The use of a filling in piece and koy in combination for the purpose of securing
Rails in Chairs Jaws or like contrivances.
2. The use of the key hereinbefore described in conjunction with a specially shaped
Jaw or other contrivance whereby the filling in piece is dispensed with.
3. The form of filling in pieces and key for the purposes hereinbefore set forth and
constructed substantially as illustrated by the accompanying Drawing.
Dated this 13th day of October 1887.
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