IMPROVEMENTS IN THE MEANS, AND APPARATUS FOR DRIVING METAL TUBES OR HOLLOW PILES INTO THE EARTH TO SERVE AS WELLS AND FOR OTHER PURPOSES
Year: 1879

page_text: LETTERS PATENT to Alfred Le Grand and Robert Sutcliff, both of No. 100,
Bunhill Row, in the City of London, for the Invention of "IMPROVEMENTS IN
THE MEANS, AND APPARATUS FOR DRIVING METAL TUBES OR HOLLOW PILES
INTO THE EARTH TO SERVE AS WELLS AND FOR OTHER PURPOSES."
"
PROVISIONAL SPECIFICATION left by the said Alfred Le Grand and Robert
Sutcliff at the Office of the Commissioners of Patents on the 23rd October
1879.
ALFRED LE GRAND and ROBERT SUTCLIFF, both of No. 100, Bunhill Row, in the
City of London. "IMPROVEMENTS IN THE MEANS AND APPARATUS FOR DRIVING
METAL TUBES OR HOLLOW PILES INTO THE EARTH TO SERVE AS WELLS AND FOR
OTHER PURPOSES."
This Invention has for its object improvements in the means and apparatus for
driving metal tubes or hollow piles into the earth to serve as wells and for other
purposes.
;
We employ for driving the tube or hollow pile a weight fixed upon or formed
with a stem, which enters within the tube and serves as a guide for the weight as
it is raised and allowed to fall. By preference we cast the weight in iron upon a
bar of wrought iron, somewhat smaller in diameter than the interior of the tube
intended to be driven, and so that the bar. projects on either side from the cast weight.
The driver is worked direct by men, who seize it by the upper part of the stem,
lift it, and allow it to fall. The cast part of the driver strikes upon the upper end
of the tube, which is strengthened by a flanged piece screwed upon it.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alfred Le Grand and Robert Sutcliff in the Great Seal Patent Office
on the 22nd April 1880.
ALFRED LE GRAND and ROBERT SUTCLIFF, both of No. 100, Bunhill Row, in the
City of London. "IMPROVEMENTS IN THE MEANS AND APPARATUS FOR DRIVING
METAL TUBES OR HOLLOW PILES INTO THE EARTH TO SERVE AS WELLS AND FOR
OTHER PURPOSES."
This Invention has for its object improvements in the means and apparatus for
driving metal tubes or hollow piles into the earth to serve as wells and for other
purposes.
We employ for driving the tube or hollow pile a weight fixed upon or formed
with a stem, which enters within the tube and serves as a guide for the weight as
it is raised and allowed to fall. By preference we cast the weight in iron upon a
bar of wrought iron, somewhat smaller in diameter than the interior of the tube
intended to be driven, and so that the bar projects on either side from the cast
weight. The driver is repeatedly lifted and allowed to fall. The cast part of the
driver then strikes upon the upper end of the tube, which is strengthened by a
flanged piece screwed upon it, and drives the tube into the ground.
In the Drawing annexed we have shewn the upper end of a tube or hollow pile,
and a driving weight with guiding stem to be used for driving the tube into the
ground.
a is the tube or hollow pile; b, a head screwed on to the top of the tube a; cis
the driving weight cast on or otherwise secured to the rod or stem d, which is
preferably of wrought iron. The stem, as shewn, projects beyond the weight, and
one end of it enters the interior of the tube and serves as a guide for the weight as
it is raised and allowed to drop on to the head of the tube.
The driver may be worked direct by men, who seize it by the upper part of the
stem and lift it, and then allow it to fall; or it may be lifted by a rope passing
over a pulley mounted in any convenient manner vertically above the driver, or
other means may be adopted for raising the weight and allowing it to drop on to
the head of the tube.
Having thus described the nature of our Invention and the manner of performing
the same, we would have it understood that we claim, the means and apparatus,
substantially as described, for driving metal tubes and hollow piles, such means
and apparatus consisting in a weight with a stem entering within the tube or pile
and serving as a guide whilst the weight is lifted and allowed to fall on to the head
of the tube or pile in any convenient way.
In witness whereof, I, the said Alfred Le Grand, have hereunto set my hand
and seal, this Seventeenth day of April, in the year of our Lord One
thousand eight hundred and eighty.