IMPROVEMENTS IN APPARATUS ADAPTED FOR PUMPING AND OTHER HYDRAULIC PURPOSES AND FOR PROPELLING VESSELS AND ASSISTING THEIR STEERAGE
Year: 1883

page_text: LETTERS PATENT to Joseph Armytage Wade of Hornsea in the East Riding of
the County of York Timber Merchant and John Cherry of Hornsea aforesaid
Brick and Tile Works. Manager for an Invention of IMPROVEMENTS IN
APPARATUS ADAPTED FOR PUMPING AND OTHER HYDRAULIC PURPOSES AND
FOR PROPELLING VESSELS AND ASSISTING THEIR STEERAGE
(Void by reason of the Patentees having neglected to file a Specification in
pursuance of the conditions of the Letters Patent.)
PROVISIONAL SPECIFICATION left by the said Joseph Armytage Wade
and John Cherry at the Office of the Commissioners of Patents on the
30th August 1883.
"
JOSEPH ARMYTAGE WADE of Hornsea in the East Riding of the County of
York Timber Merchant, and JOHN CHERRY of Hornsea aforesaid, Brick and Tile
Works Manager
"IMPROVEMENTS IN APPARATUS ADAPTED FOR PUMPING AND
OTHER HYDRAULIC PURPOSES AND FOR PROPELLING VESSELS AND ASSISTING THEIR
STEERAGE
Our invention consists in the combination of a revolving screw or screws in a
tube or chamber with any suitable driving apparatus adapted to work the same
for impelling water or other fluid admitted to the said tube or chamber and forcing
it through pipes or otherwise as may be required.
The screw may be varied in form and extent to suit the purpose to which it is
to be applied For instance it may be formed with one or more blades continuous
and encircling completely or in part the boss or shaft upon which they shall be set
in one or more spirals, or parts thereof and it may consist of several blades similar
to a ship's propeller or gouge-shaped or in other or in various forms and describing
one or more spirals or part or parts of spirals either cast with or fastened to a
casing which will revolve with the screw or without any such casing and otherwise
varied to suit the particular purpose required. If preferred the surfaces of the
screw or blades may be corrugated.

page_text: When used as a pump the screw is or may be fitted so as to revolve within a
chamber the internal diameter of which corresponds or nearly corresponds with the
diameter of the screw so that all fluid admitted to the chamber must be passed
through the screw by the action of its blades or surfaces on such fluids. This
chamber is intermediate between the suction pipe and the delivery pipe a foot
valve being inserted in the suction pipe. The chamber can be opened as required
for the insertion of the said screw
The driving apparatus may be varied and either with or without gearing or
strap between the prime mover and the pumping apparatus as may be required.
Also the screw shaft may be arranged to work either horizontally or vertically and
the form of the pump may be either that of a horizontal body or a vertical barrel or
other suitable form. When the apparatus is used for propelling the screw propeller
is enclosed in a parallel tube extending throughout the whole length of the vessel
the motion of which either forward or backward is produced by the water entering at
one end of the tube and being expelled therefrom at the other end by the action of
the screw within the tube the shaft of which screw is mounted at each end in a
bracket with arms supporting. a centre boss and is driven by spur or bevil gearing.
But the arrangement for driving the screw may be varied and more than one
screw may be used in the same tube. The influx and outflow of the water may be
made subservient to a considerable extent to the purpose of steering by means of
regulating valves or duplicate rudders.