98 THE NEW ZEALAND GAZETTE. [No. 2

No. 17283.—21st November, 1903.—HENRY OLUF OLSEN,
of 513, Flinders Street, Melbourne, Victoria, Manufacturer.
Improved method of manufacturing artificial stone, such as
marble and the like.

Claims.—(1.) A method of manufacturing artificial stone,
such as marble and the like, consisting essentially in treat-
ing burnt gypsum with carbonic acid, thereafter burning
same and mixing it with size to which has been added alum,
colouring such mixture with colours that have been mixed
with size, spreading such mass on a plate of glass to the
required thickness, then covering same with a backing or
layer of the gypsum that has been treated with carbonic
acid and afterwards burned, substantially as and for the
purposes set forth. (2.) In a method of manufacturing
artificial stone, such as marble and the like, in combination,
a sheet of smooth glass and a layer of coloured gypsum
spread upon same and retained in position until the layer is
sufficiently hard to remove, substantially as and for the
purposes set forth. (3.) My improved method of manu-
facturing artificial stone, such as marble and the like, con-
sisting in treating burnt gypsum with carbonic acid, again
burning said gypsum until its water is expelled, mixing same
with size to which alum has been added until a suitable con-
sistency has been obtained, colouring same to obtain a
marbled effect, said colours being mixed with size, spreading
the whole mixture over a sheet of glass, adding a backing of
gypsum, and allowing the whole to remain upon the glass for
a few days, and thereafter drying and storing the slab for
about fourteen days and polishing same with or without the
addition of oil, substantially as and for the purposes set
forth.
(Specification, 3s.)

No. 17284.—21st November, 1903.—GEORGE FREDERICK
HOLDEN, of Wallace, Victoria, Produce Merchant. Appa-
ratus for compressing chaff, oats, bran, fodder, or other
material into bales.

Claims.—(1.) A verticle box or press open throughout its
length, and of a length to carry a number of bales, means
for feeding material to the press, and means for pressing the
material into bales in the box, substantially as and for the
purposes described. (2.) In combination, a vertical open
box or press of a length to hold a number of bales, a plunger
in the box, a feed-hopper, a horizontal plunger operating in
the feed-hopper, means for operating the press-plunger, and
means for operating the feed-plunger, substantially as and for
the purposes described. (3.) A vertical open box or press of
a length to carry a number of bales, having a portion below
the lowest level of the plunger stepped or shouldered, sub-
stantially as and for the purposes described. (4.) A vertical
open box of a length to hold a number of bales, a slide door
at top of press, means for operating slide door, hinged sides
to form a guideway for the dividing boards and means for
operating same, and a feed-tray for the boards, substantially
as and for the purposes described. (5.) A vertical open box
of a length to hold a number of bales, a slide door at top, the
means shown for operating it, hinged sides, the means shown
for operating them, and a feed-tray at bottom of door, sub-
stantially as described. (6.) A vertical open box of a length
to hold a number of bales, and having its lower portion con-
structed with open framing to allow of binding the bales,
substantially as and for the purposes described. (7.) The
means herein described and illustrated for operating the
feed-plunger, substantially as and for the purposes described.
(8.) In combinaiton with a vertical open press of a length to
hold a number of bales, means of coating the bales with a
viscous, gummy, or sticky medium as they pass through the
press, substantially as and for the purposes described. (9.)
The combination and arrangement of the several parts for
the purposes described, and substantially as illustrated on the
drawings.
(Specification, 6s; drawing, 1s.)

No. 17294.—26th November, 1903.—CARL LUDWIG HOLM,
of Dobelnsgatan, 62, Stockholm, Sweden, Fitter. Improve-
ments in box bearings for rapidly rotating shafts.

Claims.—(1.) The combination with a box bearing of one
or more liquid-holders in one element of the bearing, liquids
in said liquid-holders, and projections from the other element
of said bearing into the said liquids, substantially as and
for the purpose set forth. (2.) The combination with a box
bearing of one or more liquid-holders in the one element of
the bearing, liquids in the said liquid-holders, projections
from the other element of said bearing into the said liquids,
and means for preventing the bushing from rotating with
the shaft, substantially as and for the purpose set forth.
(Specification, 4s. 6d.; drawing, 1s.)

No. 17302.—24th November, 1903.—JAMES TONGE, Jun.,
of Skerryvore, Westhoughton, near Bolton, Lancaster, Eng-
land, Mining Engineer. Improvements in drills for mining
purposes.

Claims.—(1.) A drill formed hollow or of tubular shape
and having volute flanges to remove the refuse or cuttings,
substantially as specified. (2.) A tubular drill having its
volute flanges and cutting-edges formed integrally with it,
substantially as specified. (3.) In a tubular drill, cutting-
edges formed to have an annular base piece to take over the
tubular body of the drill and be secured thereto, substantially
as specified. (4.) In a tubular drill, detachable cutters formed
to cut the outer and inner circumferences of the cylindrical
passage to receive said drill, and means for attaching said
cutters to the body part of the drill, substantially as speci-
fied. (5.) In a tubular drill, detachable cutters for attach-
ment to said drill, said cutters being formed with stems to
enable their said attachment volute flanges formed on said
drills and openings made in certain of said flanges to receive
the stems of said detachable cutters, substantially as speci-
fied. (6.) In a tubular drill, detachable cutters flanges formed
on the body of the drill to have openings to receive the stems
of said cutters, and openings in the body part made to receive
the bent ends of said stems, substantially as specified. (7.) A
tubular drill made in sections, one section carrying a pro-
jecting part to take into an opening made in a part secured
to another section, the former projection also having an
opening to receive a supplementary projection on the second
part, whereby the parts are secured together, substantially as
set forth. (8.) A tubular drill made in sections, one section
being formed to be detachably secured to another, and each
section having its complement of volute flanges, substantially
as specified. (9.) Drills for mining and like purposes, the
same being constructed and arranged to operate substantially
as specified.
(Specification, 4s. 6d.; drawing, 2s.)

No. 17314.—2nd December, 1903.—MIKAEL PEDERSEN, of
Raglan House, Dursley, Gloucester, England, Engineer.
Improvements in cream-separators.

Claims.—(1.) The improvements in cream-separators con-
sisting of a series of conical plates mounted in a rotating
bowl or drum and having their outer edges flanged and per-
forated, substantially for the purpose set forth. (2.) The
improvements in cream-separators consisting of a series of
conical plates mounted in a rotating bowl or drum and
having their centre opening bent or flanged outwards, in
combination with recesses and perforations arranged around
the centre, substantially for the purpose described. (3.) The
improvements in cream separators consisting of a series of
conical plates mounted in a rotating bowl or drum and
having the centre of the plates cut away to form alternate
recesses and spaces, in combination with flanged and per-
forated outer edges, substantially for the purpose set forth.
(4.) The improvements in cream-separators consisting of a
series of conical plates mounted in a rotating bowl or drum
and having perforations around the centre opening flanged
and perforated edges to the plates, substantially as described.
(5.) The improvements in cream-separators consisting of a
bowl or drum containing a series of plates such as claimed
by claims 1 to 4, and which is mounted upon a ball-head
driving-spindle having a groove or slot for the purpose de-
scribed. (6.) The combination in the top conical plate of a
neck projecting through the opening of the bowl having the
regulating-screw placed inside the bowl, substantially for the
purpose set forth.
(Specification, 5s. 6d.; drawing, 4s.)

No. 17320.—3rd December, 1903.—MARTIN EKENBERG,
of Odengatan, 40, Stockholm, Sweden, Doctor of Philo-
sophy. Improved method of and apparatus for concentrat-
ing and evaporating liquids.

Claims.—(1.) A method of evaporating or concentrating, in
vacuum or under ordinary atmospheric pressure, emulsions,
solutions, and the like, consisting in causing the liquid
under constant circulation to flow many times over the free
surface of a heated rotary body which is mounted in a
receptacle, and from which the evaporation takes place,
substantially as described. (2.) A method of evaporating, in
vacuum or under ordinary atmospheric pressure, emulsions,
solutions, and the like to a dry condition, consisting in
causing the liquid, when circulated in a suitable manner, to
flow over surfaces (or a surface) of a heated rotary body
mounted in the liquid receptacle, which surfaces are not
employed for the evaporation to a dry condition, from
which rotary body the residue produced by evaporation is
scraped, substantially as described. (3.) A method of
evaporating, in vacuum or under ordinary atmospheric