1596
THE NEW ZEALAND GAZETTE.
[No. 60

it is desired to cut a ditch the machine is placed in position,
the blades are lowered to the ground M, N, and the depth
regulated by the gear before mentioned, and the elevator
attached behind. As soon as the hauling-power is applied
to move the machine forward the blades gradually enter the
ground to the depth previously regulated, and as the
machine moves forward the ditch is cut on both sides and
horizontally, the cut sods L rising up the elevator O, Q, when
used and being thrown off at the top as before explained.
When the ditch is completed the pins or bolts may be taken
out of the two foremost of the holes S, and the remaining
two pins or bolts act as pivots on which the blades hinge,
and by means of which they may be raised out of the ground
together with the elevator, and on the beams C being raised
the machine is ready for transport. Means such as chains G
are provided to connect the machine to the haulage-gear, and
a pin F may be provided mounted on wheel E, revolving if
desired in a socket-hole in beams C, and may be used for
altering the elevation of said beams. As grass or roots may
gather against the blades during cutting operations and so
hinder the progress of the machine, holes are provided in
the teeth I, I. A slot leads from the face of each blade to
each hole, through which the grass or roots pass up the
elevator with the cut sods. When the elevator is not used,
a drain similar to that formed by drain-ploughs would be
formed, excepting that the sides are cut in two places instead
of one as in the usual case, and the sods being lifted clearer
from the bottom and remaining so, so that a channel is
formed beneath the sods.

Claim. — The general construction, arrangement, and
combination of parts composing my “improvements in
ditch-ploughs,” all substantially as and for the purposes
described with reference to the drawings.

(Specification, 3s. 3d.; drawings, 1s.)

No. 15076.—3rd July, 1902.—ERNEST BOHM, of 5, Box-
worth Grove, Richmond Road, Barnsbury, London, Eng-
land, Lamp-manufacturer. Improvements in and relating
to globes and the like for illuminating purposes, and means
for manufacturing same.

Claims.—(1.) In globes or the like used for illuminating
purposes, the formation of a lens around the periphery
thereof and integrally therewith, substantially as described
and illustrated. (2.) In globes or the like used for illuminat-
ing purposes, the formation of a spiral lens integrally there-
with either on the outer or inner surface thereof, substan-
tially as described and illustrated. (3.) In globes or the
like used for illuminating purposes, and manufacture there-
of, a glass spiral of desired section inserted into tube before
the blowing thereof into the desired shape, said spiral then
forming an integral part of said globe, substantially as de-
scribed and illustrated. (4.) In globes or the like used for
illuminating purposes, and manufacture thereof, a glass rod
of desired section, which is wound around the tube prior to
the blowing thereof into the desired shape, said rod then
forming an integral part of said globe, substantially as de-
scribed and illustrated.

(Specification, 3s. 6d.; drawings, 1s.)

No. 15078.—3rd July, 1902.—JOHN MOGINIE CHAMBERS, of
Auckland, New Zealand, Engineer (nominee of West’s
Patent Tire-setter Company, Limited, of Sydney, New South
Wales—the assignees of Jonathan Burns West, of Rochester,
New York, United States of America). Improvements in
apparatus for compressing wheel-tires and other articles.

Claims.—(1.) In apparatus for pressing wheel-tires and
the like, a circular abutment-ring secured upon the top face
of a bed-plate, a number of cylinders radially secured to the
bed-plate with their outer ends against the abutment-ring,
pistons or rams fitting within such cylinders, means for con-
veying motive power to the cylinders, and means whereby the
whole of the pistons or rams shall be caused to simultane-
ously move radially inwards and outwards upon the bed-
plate, as specified. (2.) A number of radially arranged rams
or pistons, the outer ends of which fit within cylinders secured
upon a bed-plate, while their inner ends are formed with arc
faces, and with dependent vertical rods that fit within slots
formed in the bed-plate, and are provided with cross pieces
on their lower ends, engaging with the bottom edges of such
slots, as and for the purposes set forth. (3.) A number of
pistons or rams mounted radially upon a bed-plate, with their
outer ends working in cylinders secured to such bed-plate,
rods depending from the inner ends of the pistons or rams
and passing through slots in the bed-plate, and cross pieces
attached to the bottoms of the rods, in combination with
radial bars secured to the bed-plate midway between and
alternately with the cylinders, movable cross pieces upon
the outer ends of such radial bars, links connecting the ad-
jacent ends of the cross pieces on the radial bars and depend-
ent from the pistons, and helical springs surrounding the

radial bars with means for adjusting the tension thereof, all
as and for the purposes set forth and explained. (4.) The
general arrangement, construction, and combination of
parts in my improvements in apparatus for compressing
wheel-tires and other articles as described and explained, as
illustrated in the drawings, and for the several purposes set
forth.

(Specification, 5s.; drawings, 1s.)

No. 15079.—3rd July, 1902.—EMILE MASLIN, of 6, Bonne-
veine, Marseilles, France, Engineer. Improvements in
and relating to steam-boiler and other furnaces and heat-
generating apparatus.

Claims.—(1.) An apparatus intended for the heating of
steam-boilers and the like, characterized by a furnace with a
closed stove or fuel-chamber of refractory material and
without a grate, acting with an artificial draft, the air-supply
being first heated at the expense of the waste gases by being
made to traverse a suitable regenerator, such apparatus hav-
ing for its object the complete utilisation of the heat of the
fuel and the attainment of a very high economy, substan-
tially as described. (2.) An apparatus of the kind above
claimed, consisting of a closed stove or fire-chamber without
a grate, into which the fuel is fed automatically in very small
charges and at regular and very frequent intervals, the air
for the combustion being delivered into the furnace in excess
and artificially (either by a fan or an injector) in a quantity
proportionate to the amount of fuel to be burnt, in order to
insure complete combustion without smoke, this air being
previously heated in its passage by traversing a suitable
regenerator at the expense of the heat of the waste gases,
the ash being liquefied and discharged in the form of liquid,
the products of combustion being filtered by means of super-
posed beds of refractory or incombustible material; the
said apparatus having for its object to discharge into the
atmosphere only cold gases free from fumes, carbonic oxide,
and small unburnt particles of coal, and to utilise completely
the heat of any kind of fuel, substantially as described.
(3.) The employment of an outer casing or jacket for the
regeneration of the heat, designed for the purpose of collect-
ing and absorbing the heat lost by radiation and enclosing
all the parts of the plant, the furnace and its flues being
surrounded by a primary isolating casing, substantially as
described. (4.) The improved arrangement of heat-generating
apparatus substantially as described with reference to Fig.1
or to Figs. 2 to 4 of the drawings, for the purpose specified.

(Specification, 9s. 6d.; drawings, 2s.)

No. 15092.—10th July, 1902.—THOMAS HAMMILL HICKS,
of 218, Brackenridge Street, Fort Wayne, Indiana, United
States of America, Physician. Improvements in apparatus
for separating mercury and amalgam from ore-pulp.

Claims.—(1.) A horizontal annular pan adapted to contain
a flowable body of mercury over its entire bottom and
mounted to oscillate about its vertical centre, an agitator
arranged therein, and means to rotatively oscillate said pan.
(2.) An annular pan adapted to contain a flowable body of
mercury over its entire bottom and afford passage for flow-
able bodies over the same and mounted to oscillate about its
vertical centre, an amalgamable lining arranged on the
bottom of said pan, an agitator arranged therein, and
means to rotatively oscillate the same. (3.) A horizontal
annular pan adapted to contain a flowable body of mercury
over its entire bottom and afford passage for flowable bodies
over the same and mounted to oscillate about its vertical
centre, an annular agitator mounted on said pan and having
pins depending therein, and means to rotatively oscillate
said pan. (4.) An annular pan adapted to contain a flow-
able body of mercury over its entire bottom and afford
passage for flowable bodies over the same, a trap arranged
in connection with the pan to draw off automatically surplus
mercury therefrom, and means to rotatively oscillate said
pan. (5.) A vertical series of annular pans, each having an
amalgamable lining on its bottom and adapted to contain a
flowable body of mercury over said entire lining and afford
passage for flowable bodies over the same, and means to
rotatively oscillate said series. (6.) A vertical series of
annular pans, each adapted to contain a flowable body of
mercury over its entire bottom and afford passage for fluid
bodies over the same and fitted to discharge such fluid bodies
into the next below, an agitator arranged in each pan,
and means to rotatively oscillate said series.

(Specification, 7s.; drawings, 1s.)

No. 15093.—10th July, 1902.—THOMAS HAMMILL HICKS,
of 218, Brackenridge Street, Fort Wayne, Indiana, United
States of America, Physician. Improvements in processes
for recovering gold from refractory ores in the form of
amalgam.