Aug. 17.] THE NEW ZEALAND GAZETTE. 1543

No. 11801.--17th July, 1899.--Rees Kenfig Williams, of
Thames, Auckland, New Zealand, Engineer. An improved
apparatus for filtering oil.

Claims.--(1.) An apparatus for filtering oil comprising, in
combination, a reservoir having a draw-off cock near the
bottom, a cock and pipe leading from the reservoir to the
bottom of a vessel, a perforated plate through which the end
of the said pipe passes, a filtering medium in compression
between the said plate and another plate, substantially as
set forth. (2.) The apparatus for filtering oil consisting of
parts constructed, arranged, and combined substantially as
and for the purposes set forth, and illustrated on the drawing.
(Specification, 1s. 9d.; drawings, 6s.)

No. 11834.--27th July, 1899.--William Ernest Hughes,
of Queen's Chambers, Wellington, New Zealand, Patent
Agent (nominee of Maurice Salomon, of Aldenhoven, Ger-
many, Manufacturer). Improvements in spirit-lamps.

Claim.--A spirit-lamp in which the fuel is fluid when
in use, but in a solid or occluded condition when cold, sub-
stantially as described.
(Specification, 1s. 3d.)

No. 11835.--27th July, 1899.--Louis Carnegy Auldjo, of
Equitable Buildings, George Street, Sydney, New South
Wales, Consulting Engineer. A complete heat-cycle for
steam-engines and steam-boilers.

Claims.--(1.) Air charged with aqueous vapour as a
medium for again returning to the steam-boiler furnace the
heat not utilised by the steam-engine. (2.) A heat-ex-
changer, placed between and connected with the steam-
engine condenser and the steam-boiler, so arranged that the
resulting mixture of aqueous vapour and air produced in
said heat-exchanger is transmitted to the steam-boiler
furnace, as and for the purpose set forth. (3.) An evapora-
tive condenser, placed between and connected with the
steam-engine and steam-boiler, so arranged that the result-
ing mixture of aqueous vapour and air formed in said evapo-
rative condenser is transmitted to the steam-boiler furnace, as
and for the purpose set forth. (4.) The combination of a
vapour-condenser for producing fresh water with a heat-
exchanger, placed between and connected with the steam-
engine condenser and steam-boiler, so arranged that the
resulting mixture of aqueous vapour and air formed in said
heat-exchanger is transmitted to the steam-boiler furnace,
substantially as set forth. (5.) The combination of a vapour-
condenser for producing fresh water with an evaporative
condenser, placed between and connected with the steam-
engine condenser and steam-boiler, so arranged that the
resulting mixture of aqueous vapour and air formed in said
evaporative condenser is transmitted to the steam-boiler
furnace, substantially as set forth. (6.) The combination of
a vapour-condenser and a heat-exchanger with an evapora-
tive condenser, placed between and connected with the
steam-engine and boiler, so arranged that the resulting
mixture of aqueous vapour and air formed in said evapora-
tive condenser is transmitted to the boiler-furnace, as and for
the purpose set forth. (7.) The combination of a steam-
engine and boiler with a heat-exchanger for producing air
charged with aqueous vapour and a heat-exchanger placed
to intercept waste gases from the boiler-furnace, whereby
the mixture of air and aqueous vapour is further heated
before entering the boiler-furnace, substantially as set forth.
(8.) The combination of a steam-engine and boiler with an
evaporative condenser for producing air charged with aque-
ous vapour and a heat-exchanger placed to intercept waste
gases from the boiler-furnace, whereby the mixture of air
and aqueous vapour is further heated before entering the
boiler-furnace, substantially as set forth.
(Specification, 8s. 6d.; drawings, £1 12s. 6d.)

No. 11841.--31st July, 1899.--William Ernest Hughes,
of Queen's Chambers, Wellington, New Zealand, Patent
Agent (nominee of Emanuel Jensen, of Copenhagen, Den-
mark, Architect). Improvements in building-blocks.

Claims.--(1.) A building-block having raised parts along
the edges and zigzag grooves in the raised parts, to prevent
dampness from penetrating and prevent the block from
moving in any direction, substantially as set forth. (2.) The
forming of vertical grooves d made in the ends, also wedge-
shaped cutting f made in ends of centre part above and
below the channel, to prevent the block from moving and
will fill out the joints, substantially as set forth. (3.) The
inserting of strips at e of stronger mortar than the block
is made of, and fixed in the blocks above and below the
channel to prevent dampness from getting through, sub-
stantially as set forth. (4.) The improvements in building-
blocks consisting of parts constructed and arranged sub-
stantially as set forth.
(Specification, 1s. 9d.; drawings, 3s.)

No. 11843.--27th July, 1899.--James Storey Maxwell, of
Rocky Nook, near Auckland, New Zealand, Gentleman. An
improved centre-discharge dumping-scow or silt-punt.

Claims.--(1.) In a silt-punt having a V-shaped hopper
centrally placed within it, the doors hinged to the lower edges
of the sides of the hopper, fitting to a centre beam or rail,
and held thereto by chains or other gear, for the purpose set
forth, as described, and as illustrated by the drawing. (2.) In
combination, a silt-punt having a V-shaped hopper within
it and a well beneath said hopper, with doors hinged to the
lower edges of the hopper, said doors fitting horizontally to a
centre beam or rail, and held thereto by chains or other
gear running through blocks or eyes and secured to drums
on windlasses, said windlasses being fastened to deck of said
punt for the purpose set forth, as described, and as illustrated
by the drawing.
(Specification, 3s.; drawings, 3s.)

No. 11844.--27th July, 1899.--James Storey Maxwell,
of Rocky Nook, near Auckland, New Zealand, Gentleman.
An improved side-discharge dumping-scow or silt-punt.

Claims.--(1.) In a silt-punt having a side-discharge, two
side-hoppers divided by a ridge-shaped formation, having
doors hinged in the outer sides of said side-hoppers, said
doors being connected by chains through blocks or eyes to
drums on windlasses, for the purpose set forth, as described,
and as illustrated by the drawing. (2.) In combination, in
a silt-punt having a side-discharge, two side-hoppers, ridge-
shaped formation dividing said two side-hoppers, doors
hinged in outer sides of said hoppers, chains connecting
said doors to drums on windlasses, blocks or eyes through
which said chains run, and drums and windlasses on which
said chains wind, all for the purpose set forth, as described,
and as illustrated by the drawing.
(Specification, 2s. 6d.; drawings, 3s.)

No. 11845.--1st August, 1899.--Thomas Henry Patching,
Tailor, and Robert Hoskins Finch, Builder, both of Sydney,
New South Wales. An automatic coupling for air-brakes.

Claims.--(1.) The combination in an automatic air-brake
coupling of the tube b; the tube r having a nozzle-piece?!,
taper-lugs s, s, horizontal guide-pieces t, t, disc v, cross-pins
u, u, the whole being secured to the sole-plate of the vehicle,
and controlled by the spring k; the bracket c fitted with the
knuckle-joint d, and heel e, for the purposes set forth, and as
illustrated in the drawings. (2.) The combination in an
automatic air-brake coupling of the cylinder w provided
with the helical channels ∑, ∑, and having a ball-shaped
mouth; the cylinder w? having the helical opening (!); the
sliding piston x, with the pipe-connection x?, set at right
angles thereto, provided with a tapered rubber mouthpiece z,
the shoulder x? grip-pieces y, y; the bar b?; and the spring o,
for the purposes set forth, and as illustrated in the draw-
ings. (3.) In an automatic air-brake coupling, the combina-
tion and arrangement of a male portion such as shown in
Fig. 4, provided with horizontal cross-pins u, u, with a hollow
cylinder such as w, provided with helical channels ∑, ∑, for
the purpose set forth, substantially as described and as illus-
trated.
(Specification, 5s. 6d.; drawings, 16s.)

No. 11847.--1st August, 1899.--William Bradley, of 18,
Collegiate Crescent, Sheffield, England, Gentleman. Im-
provements in and relating to the construction of high-
pressure water-taps.

Claims.--(1.) A float-actuated tap having a tubular valve C,
which forms part of the outlet waterway, fitted with a cup-
leather D, sliding with it within the body of the tap (or sliding
through a cup-leather held in the body, as preferred), the
head l of the valve located within a chamber E, open to both
the inlet and outlet passages, the face of the valve recessed to
fit closely over a corresponding projection G?, and its annular
edge capable of closing against the seating H, the diameter
of the bore of the cylinder A or cup-leather D being greater
than the diameter of the outlet C?, and the area of the head l
of the valve C being larger than the bore of the said cylinder A,
as described, and shown in Fig. 1. (2.) A float-actuated
tap having a solid cylindrical valve fitted with (or sliding
through) a cup-leather D, the face of the valve recessed to
fit closely over the upwardly projecting end of the outlet
nozzle, and its annular edge capable of closing against a seat-
ing H, the diameter of the cylinder A or cup-leather D being