IMPROVEMENTS IN APPARATUS FOR PREVENTING CORROSION PREVENTING DEPOSIT OR FACILITATING REMOVAL OF SCALE FROM STEAM AND OTHER BOILERS to be as follows:
Year: 1885

page_text: I JAMES HOYLE of 40 Avenue Parade, Accrington, in the County of Lancaster,
Leather Factor and Mill Furnisher, do hereby declare the nature of my said inven-
tion for "IMPROVEMENTS IN APPARATUS FOR PREVENTING CORROSION PREVENTING
DEPOSIT OR FACILITATING REMOVAL OF SCALE FROM STEAM AND OTHER BOILERS
to be as follows:-
"
For purpose aforesaid according to this my invention I employ a disc of metal or
alloy or amalgam or other material such as zinc iron copper lead or other metal or
metallic alloy, or wood, ebonite, or earthenware cement, (artificial) stone or plaster
or other similar material, or of a combination of two or more suitable materials,
cast or stamped or hammered or moulded, or rolled, or wrought to shape-but
I prefer zinc as being most economical (in first cost) and as being electro-positive to
the metals of which boilers and similar vessels are usually constructed, and because
of the acids which occur in most feed waters.
The disc is moulded, stamped, or wrought into shape consisting of an outer ring
and a thin web-within the ring and lying with its centre plane co-incident or
parallel with the plane of the rings greatest diameter-The said disc being
perforated or serrated with one or more holes or apertures and having on one or
on more sides of such holes or apertures and arranged generally longitudinally in
the direction from the common centre of the disc web and ring radially to the
inner sides of the ring or thereabouts wings, vanes, or flippers, arranged or inclined,
or curved after the manner of an archimedian screw circular rotary ventilator or
the sails of a windmill and all inclined in one general direction either as the thread
if a right handed or a left handed screw, so that if the disc be suspended upon and
free to turn about its centre a current of ponderable fluid impinging upon the
wings vanes or flippers in a direction at right angles or thereabouts to the web or
plane of the greatest diameter of the disc will cause the disc to revolve about its
centre in a direction dependent upon the direction of inclination of the wings
vanes or flippers and coincident with the plane of its greatest diameter-The disc
is placed within the boiler or other similar vessel below the water level and when
ebullition takes place the upward currents of water and of steam acting chiefly
CD 1

page_text: upon the web and wings of the disc cause a slight and intermittent lifting and
falling motion and the same powers impinging upon the inclined wings vanes or
flippers cause an intermittent rotary motion in the disc, this rotary motion being
facilitated by the slight and intermittent lifting and falling motion referred to
the disc also rolls or moves gradually from place to place within the boiler, and the
intermittent lifting and falling motion causes the disc to impinge or thump upon
the inner surface of the boiler or of the deposit which is within the boiler, and
upon which it falls and loosens the scale.
I coat, amalgamate, or partially amalgamate the surface of the disc with mercury
so as to prevent what is known to electricians as "local action " or in some cases
I use coating of paint or varnish.
I thus combine a mechanical movement, an electric action, a chemical action,
and a protection of the material used, against useless waste.
WALTER BRIERLEY,
Agent for the Applicant.

page_text: Improvements in Apparatus for Preventing Corrosion, Preventing
Deposit, or Facilitating Removal of Scale from Steam and
other Boilers.
:
I JAMES HOYLE, of 40 Avenue Parade, Accrington, in the County of Lancaster,
Leather Factor and Mill Furnisher, do hereby declare the nature of my said inven-
tion for "IMPROVEMENTS IN APPARATUS FOR PREVENTING CORROSION PREVENTING
DEPOSIT OR FACILITATING REMOVAL OF SCALE FROM STEAM AND OTHER BOILERS
บ
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
For purpose aforesaid according to this my invention I employ a disc of metal or
alloy or amalgam or other material such as zinc iron copper, lead, or other metal or
metallic alloy or wood, ebonite, or earthenware cement, (artificial) stone or plaster
or other similar material or of a combination of two or more suitable materials,
cast or stamped or hammered or moulded or rolled or wrought to shape but I prefer
zinc as being most economical (in first cost) and as being electro positive to the
metals of which boilers and similar vessels are usually constructed and because the
acids which occur in most feed waters will attack zinc rather than the iron steel
copper or other metal of which boilers are usually made.
Such being the nature and object of this my said invention the following is a
complete description (aided by the drawings of the same in which :-
Fig. 1 is a plan view of my improved disc or apparatus, and when of small size
is suitable for domestic boilers.
Fig. 2 is a section through A. B. of Fig. 1.
Fig. 3 is a plan of like apparatus the vanes being outside the rim and arranged
in a spiral or helical manner clearly shewn by Fig. 4 which is an elevation of
Fig. 3.
Figs. 5 and 6 are plan and elevation of like disc the central part within the rim
being wood or having a float attached thereto of wood or other buoyant material
for purpose of inducing motion as hereinafter referred to.
According to my invention the disc 1 is moulded stamped or wrought into shape
consisting of a ring 2 and web 3, and lying with the centre plane coincident or
parallel with the plane of the rings greatest diameter-The said disc being
preferably peforated or serrated with one or more holes or apertures 4 having on
one or more of the sides of such holes and arranged generally longitudinally in the
direction from the centre of the disc radially wings, vanes, or flippers 5 arranged
inclined, or curved after the manner of an archimedian screw, circular rotary
ventilator, or the sails of a windmill, and all inclined in one general direction,
either as the thread of a right handed or a left handed screw, so that if the disc be
suspended upon and free to turn about its centre by a current of ponderable fluid
impinging upon the wings vanes or flippers in a direction at right angles or
thereabouts to the web or plane or the greatest diameter of the disc will cause
or tend to cause the disc to revolve about its centre in a direction dependent
upon the direction of the inclination of the wings vanes or flippers and coincident

page_text: generally with the plane of its greatest diameter-The disc is placed within the
boiler or other similar vessel below the water level and when ebullition takes place
the upward currents of water and steam acting chiefly upon the web and wings of
the disc cause a slight and intermittent lifting and falling motion and the same
powers impinging upon the inclined wings vanes or flippers cause an intermittent
rotary motion in the disc this rotary motion being facilitated by the slight and
intermittent lifting and falling motion referred to, the disc also rolls or moves
gradually from place to place within the boiler, and the intermittent lifting and
falling motion causes the disc to impinge or thump upon the inner surface of the
boiler or of the deposit which is within the boiler, and upon which it falls and
loosens the scale.
"
I coat, amalgamate, or partially amalgamate the surface of the disc with mercury
so as to prevent what is known to electricians, as "local action or in some cases
I use coating of paint or varnish, or I cover part of the metallic disc referred to
with earthenware india rubber ebonite wood or other nonconductor.
I thus combine a mechanical movement an electric action a chemical action and
a protection of the material used against useless waste..
Having now particularly described, and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :--
The improved apparatus constructed and operating in manner herein fully
described and substantially as illustrated by the drawings annexed hereto.
Dated th: 154 ur of December 1OOK