IMPROVEMENTS IN THE CONSTRUCTION OF UNDERGROUND AND SIMILAR CONDUITS FOR GAS OR WATER WHICH INVENTION IS ALSO APPLICABLE FOR LINING WELLS CULVERTS AND THE LIKE
Year: 1882

page_text: LETTERS PATENT to William Robert Lake of the firm of Haseltine Lake,
& Co, Patent Agents, Southampton Buildings London for an Invention
of "IMPROVEMENTS IN THE CONSTRUCTION OF UNDERGROUND AND SIMILAR
CONDUITS FOR GAS OR WATER WHICH INVENTION IS ALSO APPLICABLE FOR
LINING WELLS CULVERTS AND THE LIKE" Communicated to him from
abroad by Adolf Knandt of Essen on the Ruhr Prussia Manufacturer.
PROVISIONAL SPECIFICATION left by the said William Robert Lake at
the Office of the Commissioners of Patents on the 12th July 1882.
WILLIAM ROBERT LAKE, of the firm of Haseltine, Lake & Co, Patent
Agents, Southampton Buildings, London. "IMPROVEMENTS IN. THE CONSTRUCTION
OF UNDERGROUND AND SIMILAR CONDUITS FOR GAS OR WATER WHICH
INVENTION IS ALSO APPLICABLE FOR LINING WELLS CULVERTS AND THE LIKE
[A communication to him from abroad by Adolf Knandt of Essen on the Ruhr
Prussia Manufacturer.]
:
"
This invention relates to underground conduits for gas and water, and to linings
of wells, shafts, galleries, culverts, &c., and its object is to make such conduits and
linings at the same time lighter and stronger than at present.
For this purpose I employ for such constructions tubes or cylinders provided
with corrugations similar to those which for some years have been applied to the
flues of steam-boilers, and in which the corrugations form peripherical ridges
and grooves.

page_text: .
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Robert Lake in the Great Seal Patent Office on the
2nd January 1883.
WILLIAM ROBERT LAKE, of the firm of Haseltine Lake, & Co., Patent
Agents, Southampton Buildings, London "IMPROVEMENTS IN THE CONSTRUCTION
OF UNDERGROUND AND SIMILAR CONDUITS FOR GAS OR WATER, WHICH
INVENTION IS ALSO APPLICABLE FOR LINING WELLS, CULVERTS AND THE LIKE,"
a communication to me from abroad by Adolf Knandt, of Essen on the Ruhr,
Prussia, Manufacturer.
"
This invention relates to underground conduits for gas, water and other
fluids, and is also applicable for lining wells, shafts, galleries, culverts and the like,
and one of its objects is to make such conduits at the same time lighter and stronger
than heretofore.
For a number of years flues of steam-boilers have been made of corrugated
tubes on account of the greater resistance which such tubes present, in
comparison with plain tubes, to compression in a direction perpendicular to
the axis.
It is, however, not only in the case of boiler-flues, which are exposed to a
pressure uniformly distributed on their outer surface, that corrugations may be
utilized. The same are of still greater importance wherever tubes have to
support pressure distributed unequally; or acting on certain points only, as is the
case in underground conduits for gas and water, and in linings of shafts,
galleries, culverts, and the like. When the conduits are placed at a slight depth
below the surface of the ground, heavy vehicles passing over them may also
produce local pressure of a prejudicial character. In linings of shafts and
galleries of mines, it is especially the settling and other movements of the
ground arising from an unequal constitution thereof, which cause irregularities of
pressure.
In order to offer the necessary resistance to these and other destructive forces,
without, however, employing an excessive thickness of metal, I construct the said
conduits and linings of corrugated tubes or cylinders, the corrugations being
arranged in the same manner as in the flues of boilers, that is to say so as to form
peripherical ridges and grooves.
Having thus described the nature and object of this invention and the manner
in which it is to be carried into practice, as communicated to me by my foreign
correspondent, I wish it understood that I claim,-
The construction of underground conduits, and linings of wells, shafts,
galleries, culverts and the like. of corrugated tubes or cylinders, as, and for the
purpose, described.
:
In witness whereof I, the said William Robert Lake have hereunto set my
hand and seal this Thirtieth day of December in the year of our Lord
One thousand eight hundred and eighty two.