AN IMPROVED APPARATUS FOR RAISING, LOWERING, OR HAULING WEIGHTS, AND FOR LOADING, DISCHARGING, OR STEERING SHIPS, AND OTHER PURPOSES
Year: 1864

page_text: LETTERS PATENT to Edward James Leonard, of No. 85, Stainsby Road,
in the Parish of Poplar, and County of Middlesex, Civil Engineer and
Engineer of the East and West India Docks, for the Invention of
"AN IMPROVED APPARATUS FOR RAISING, LOWERING, OR HAULING WEIGHTS,
AND FOR LOADING, DISCHARGING, OR STEERING SHIPS, AND OTHER
PURPOSES."
Sealed the 26th July 1864, and dated the 19th February 1864.
PROVISIONAL SPECIFICATION left by the said Edward James Leonard
at the Office of the Commissioners of Patents, with his Petition, on
the 19th February 1864.
I, EDWARD JAMES LEONARD, of No. S5, Stainsby Road, in the Parish of
Poplar and County of Middlesex, Civil Engineer and Engineer of the East and
West India Docks, do hereby declare the nature of the said Invention for
* AN IMPROVED APPARATUS FOR RAISING, LOWERING, OR HAULING WEIGHTS, AND
FOR LOADING, DISCHARGING, OR STEERING SHIPS, AND OTHER LIKE PURPOSES," to be
as follows:-
This Invention consists of a cylinder containing a piston and piston rod,to
be worked by steam or water under high or low pressure, and acting direct
upon a screw or spiral working a drum for receiving the rope or chain to
which the load is attached. The cylinder and its accompanying parts to be
fixed on a portable frame, or in a permanent position; as may be desired, and
the power to be derived from town water or other hydraulic mains, or from

page_text: A, cylinder containing ram or piston; B, spiral or screw; C, drum ;
D, ram, working in cylinder; E, nut, which moving along the spiral gives a 5
rotary motion to the drum C; F, guide bars; G, pipes for admission and
emission of water or steam; H, three-way cock or valve communicating with
pipes G; I, self-acting striking gear for shutting off the pressure; J, portable
or permanent frame
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Edward James Leonard in the Great Seal Patent Office
on the 10th August 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
JAMES LEONARD, of No. 85, Stainsby Road, in the Parish of Poplar, and
County of Middlesex, Civil Engineer and Engineer of the East and West
India Docks, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirteenth day of February, in the year of our
Lord One thousand eight hundred and sixty-four, in the twenty-seventh
year of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Edward James Leonard, Her special licence that I, the
said Edward James Leonard, my executors, administrators, and assigns, or
such othersas I, the said Edward James Leonard, my executors, administrators,
and assigns, should at any time agree with, and no others, from time to time
and atall times thereafter during the term therein expressed,should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention
for "AN IMPROVED APPARATUS FOR RAISING, LOWERING, OR HAULING WEIGHTS,
AND FOR LOADING, DISCHARGING. OR STEERING SHIPS, AND OTHER LIKE PURPOSES,"'
upon the condition (amongst others) that I, the said Edward James Leonard,
my executors or administrators, by an instrument in writing under my,
or their, or one of their hands and scals, should particularly descr.be
and ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after the date
of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Edward James Leonard, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement and accompanying Drawings, that is to say:-
This Invention consists of a cylinder containing a piston and piston rod, to
be worked by steam or water under high or low pressure, and acting direct
upon a screw or spiral working a drum for receiving the rope or chain to
which the load is attached. The cylinder and its accompanying parts to be
fixed on a portable frame, or in a permanent position, as may be preferred,
and the power to be derived from town water or other hydraulic mains, or
from steam boilers in conjunction with the machine, or from any boiler within
a reasonable distance.
DESCRIPTION.
A, cylinder containing ram or piston; B, spiral or screwed shaft; C, drum,
round which is coiled the chain or rope; D, ram or piston working in
cylinder A; E, nut, which moving along the spiral or worm shaft B, gives a
rotary motion to the drum C; F, guide or parallel bars, which guide or
steady the nut E; G, pipes for admission and emission of water or steam into
either end of cylinder A; H, three-way cock or valve communicating
alternately with pipes G,G; I, self-acting striking gear for shutting off the
pressure in cylinder A; J, portable or permanent frame supporting the whole
machine; K, emission or discharge pipe; L, working hand lever, giving
motion to the valve or cock H.
What I claim as my Invention is, the production of a rotary from a
rectilinear motion, by means of a nut fixed to the end of a piston rod, and
having a rectilinear motion only, being forced along a spirally grooved or
screwed shaft, and thereby producing a rotary motion in the said shaft and
drum attached thereto, the motion so produced being then applied to the
purposes before mentioned.
In witness whereof, I, the said Edward James Leonard, have hereunto
set my hand and seal, this Ninth day of August, in the year of our
Lord One thousand eight hundred and sixty-four.
EDWARD JAMES LEONARD. (L.S.)