IMPROVEMENTS IN PERMANENT WAY
Year: 1878

page_text: LETTERS PATENT to Join Lawton Haddan, of the Firm of Herbert and Com-
pany, Solicitors of Patents, of 67, Strand, in the City of Westminster, Civil
Engineer, for the Invention of "IMPROVEMENTS IN PERMANENT WAY."
communication from abroad by Moses Zagury, of Paris, in the Republic of
France.
A
Scaled the 13th December 1878, and dated the 25th June 1878.
PROVISIONAL SPECIFICATION left by the said John Lawton Haddan at [the
Office of the Commissioners of Patcuts on the 25th June 1878.
JOHN LAWTON HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer. IMPROVEMENTS
IN PERMANENT WAY." A communication from abroad by Moses Zagury, of Paris,
in the Republic of France.
The improvements consist in the employment of double-headed rails, manufac-.
tured of a special section, and supported on chairs, also of a special form, by which
the rail is supported without contact with the under side or lower head of the rail
for the time being.
PROVISIONAL SPECIFICATION left by the said John Lawton Haddan at [thic
Office of the Commissioners of Patcuts on the 25th June 1878.
JOHN LAWTON HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer. IMPROVEMENTS
IN PERMANENT WAY." A communication from abroad by Moses Zagury, of Paris,
in the Republic of France.
The improvements consist in the employment of double-headed rails, manufac-.
tured of a special section, and supported on chairs, also of a special form, by which
the rail is supported without contact with the under side or lower head of the rail
for the time being.
The chairs are notched into the sleepers to maintain the gauge, and partly support
the upper head of the rail.
The fastening is obtainod by a metal key used in combination with a bolt, and
the chair is fastened down to the sleeper by spikes in the usual way.
The rail is fished by means of a larger chair of similar design.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said John Lawton Haddan in the Great Seal Patent Office on the 21st
December 1878.
JOHN LAWTON HADDAN, of the Firm of Herbert and Company, Solicitors of
Patents, of 67, Strand, in the City of Westminster, Civil Engineer. "IMPROVEMENTS
IN PERMANENT WAY." A communication from abroad by Moses Zagury, of Paris,
in the Republic of France.
The improvements consist in the employment of double-headed rails, manufac-
tured of a special section, and supported on chairs, also of a special form, by which
the rail is supported without contact with the under side or lower head of the rail
for the time being.
The chairs are notched into the sleeper to maintain the gauge and partly support
the upper head of the rail.
The fastening is obtained by a metal key used in combination with a bolt, and
the chair is fastened down to the sleeper by spikes in the usual way, or otherwiso.
The rail is fished by means of a larger chair of similar design.
This Invention consists in a rail placed according to a determined angle, which
allows of turning over the rail after it has been used several years, which has not
yet been accomplished by the use of the double-headed rails actually used, as they
are keyed into bearings of cast iron, and are deformed by pression, and the lower
surface of the rail cannot be used again, while with this system the rail may always
be turned. As the improved rail is placed directly on the sleeper, the force is
divided according to a calculated angle, and the thrust being imparted directly into
a special bearing the rail does not suffer from the crushing. The rail is calculated
to sustain itself, and the lower head of the rail not having suffered in the least
from wear, inay be turned over and used again during the same space of time as
the upper head.
The adjoined Drawings will serve further to explain the Invention, and the mode
of performing it.
Fig. 1 shows end view or section of the rail.
Fig. 2, front view of the rail, showing the hole for passing the bolt, which is
about / of an inch larger than the bolt, to allow for the expansion or construction
of the rail, or the dilatation during the summer or the winter.
Fig. 3, key bolt, seen in front, showing the hole destined for the passage of the
key, seen from the side to show the width of the head of the bolt.
Fig. 4, key or cotter (Fig. 3), to maintain the bolt for fixing the rai In the
bearing.
Fig. 5, outside view of the bearing or chair, showing the two holes for the key
passing to the right and to the left, as well as the bolt hole.
Fig. 6, inside front view of the bearing or chair on sleeper, with opening for the
passage of the bolt.
Fig. 7, view of the double bearing or chair from the outside and partially in
front, showing the back of screws for holding down the chair ou the sleeper, and the
head of the screws on the right and left.
Fig. 8, front view of the double chair, showing the position of the screws on the
right and left, and the openings for the bolts, with screw nuts.
Fig. 9, section of the rail, chair, key bolt, and sleeper.
Fig. 10, view of the rail, the chair, screw bolt, and sleeper complete, fixed in
position.
Fig. 11, section of the rail, double chair, etc., with screw nut and bolts.
Fig. 12, view of the rail, double chairs, bolts, and screw nuts.
Fig. 13, view of the rail, with single chair or bearing, and koy bolt, through which
the key passes.
Fig. 14, outside view of the double chair or bearing, showing the two side scrows

page_text: of the right and left side, two surface screws, the four screw bolts, and two ends
of rail.
Fig. 15, section of the rail, natural size, the shape of the rail being based on the
composition of an isosceles triangle, having at its base two angles of 63°, in the
midst of which base a line is drawn perpendicularly, passing through the summit
the bearing of the rail will be perpendicular, and consequently parallel on the
sole of an inch. The upper head of the rail lies on the cast-iron bearing or
chair, which prevents the oscillation and sliding of the rail. The weight of the
traffic does not bear on the bolts; when the rail is turned, the lower head of the rail
takes the place of the upper.
Fig. 16 shows the double chair and rail. The upper head of rail bears on the
double bearing, the latter being larger at its upper part, and having a range parallel
with the sole of the rail, offers an enormous resistance and avoids the crushing of
the head, being a substitution for the fish used in other systems.
Fig. 17 represents the bolt, with screw nut used in the double bearing.
Claim. The system of inclined reversible rail, supports, and fasteners, substantially
as described and illustrated, and for the purposes specified.
In witness whereof, I, the said Johu Lawton Haddan, have hereunto set my
hand and seal, this Nineteenth day of December, A.D. 1878.
TT. ADDAN 101