IMPROVEMENTS IN RAILROAD TIES
Year: 1876

page_text: LETTERS PATENT to Herbert John Haddan, of the Firm of Herbert and
Company, Patent Agents, of 67, Strand, in the City of Westminster, Civil
Engineer, for the Invention of "IMPROVEMENTS IN RAILROAD TIES." A. com-
munication from abroad by George D. Blaisdell, of Cambridge, State of
Vermont, United States of America.
Sealed the 9th February 1877, and dated the 26th August 1876.
PROVISIONAL SPECIFICATION left by the said Herbert John Haddan at the
Office of the Commissioners of Patents on the 26th August 1876.
HERBERT JOHN HADDAN, of the Firm of Herbert and Company, Patent Agents,
of 67, Strand, in the City of Westminster, Civil Engineer "IMPROVEMENTS IN
RAILROAD TIES." A communication from abroad by George D. Blaisdell, of Cam-
bridge, State of Vermont, United States of America.
The improvements consist of a metal bar or sleeper furnished with a box at each
end for holding the rail chairs, together with a rod extending from end to end of
the tie, and serving to secure the chairs in place by means of clamping plates or
cheeks in combination with.the employment of an elastic cushion under the rail.
The improvements may be performed by making the sleeper of cast iron with a
box at each end fitted to receive and hold the rail and its elastic packing, and the
adjusting or tension rod may be of wrought iron, with a head at one end, and a
screw and nut at the other. The clamps or cheeks may be of metal, and in one or
more pieces.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Herbert John Haddan in the Great Seal Patent Office on the 20th
February 1877.
HERBERT JOHN Haddan, of the Firm of Herbert and Company, Patent Agents,
of 67, Strand, in the City of Westminster, Civil Engineer. "IMPROVEMENTS IN
RAILROAD TIES." A communication from abroad by George D. Blaisdell, of Cam-
bridge, State of Vermont, United States of America.

page_text: The improved tie or sleeper consists of a cast-iron bar, with a box in each end
for holding the rail chairs, and a rod extending from end to end of the tie, and
securing the chairs in place by clamping plates, all as herein-after described.
The accompanying Drawing will further explain the nature and mode of per-
forming the Invention.
Fig. 1. is a plan view of improved tie; Fig. II. is partly a side elevation, and
partly a longitudinal sectional elevation; and Figure III. is an end elevation.
Similar letters of reference indicate corresponding parts
A is the tie bar having raised ends B, which are boxed to receive the chair D for
holding the rail E; F is the rod extending from end to end of the tie through the
raised ends B below the rails, and securing the chairs in the boxes and the rails in
the chairs by the clanıp plates G. This arrangement admits of having a spring H
or cushion of elastic material under the rail to lessen the shocks and deaden the
noise.
Having thus described the Invention I claim as new and desire to secure by
Letters Patent, the metal tie A having raised and boxed ends B, chairs D, clamp
plates G and the rod F, combined and arranged substantially as specified.
In witness whereof, I, the said Herbert John Haddan, have hereunto set my
hand and seal, this Sixteenth day of February, in the year of our Lord One
thousand eight hundred and seventy-seven.