996
THE NEW ZEALAND GAZETTE.
[No. 34

adjustable along its axis of oscillation (for example, by
the movement vertically of the stud 112 or 114), in
order that it may work at different altitudes. (15.) In
a pulling-over or like machine, the combination with a
moving last-supporter of a part (such, for example, as
22), movable relatively thereto for the purpose of cor-
recting or extending its motion, and shifting the last
longitudinally, with or without means for varying the
extent of such relative movement. (16.) In a pulling-
over or like machine, the combination with a pivoted or
other reciprocating last-supporter of a part (such, for
example, as 22) made to bear against an abutment on
the frame of the machine during the motion of the last-
supporter so as to move relatively thereto and shift the
last longitudinally. (17.) In a pulling-over or like machine,
an adjustable abutment (such, for example, as 10, 15) for
the purpose described, with or without a spring. (18.) In a
pulling-over or like machine, a last-supporter having a
member such as 30 retained and adjusted on it by means
substantially such as are described and illustrated in
Fig. 11 of the drawings. (19.) In a pulling-over or like
machine, the complete pivoted last-supporter substantially
as and for the purpose described, and illustrated in Figs. 11,
12, 12a, and 13 of the drawings. (20.) In a pulling-over
or like machine, the combination with arms such as
270, 272, of devices acting to force against the last that
part of the upper which is turned over upon the last, and
at the same time to support the last against such action.
(21.) In a pulling-over or like machine, a support (such, for
example, as 278) having a tongue, a segment-piece having a
groove to receive said tongue, a contact-member movable on
said segment-piece, and shaped and operated to engage first
the side and then the bottom of the last, and means to
maintain said contact-member in normal position, sub-
stantially as described. (22.) In a pulling-over or like
machine, the combination with arms such as 270, 272, of
devices such as 92, 104, arranged and operating substantially
as and for the purpose described. (23.) In a pulling-over or
like machine, the device 92 or 104 and its appurtenances,
substantially as and for the purpose described, and illustrated
in Fig. 2a or Figs. 3 and 4 of the drawings. (24.) In a
pulling-over or like machine, the combination, with means
to engage an upper and means to engage a last, of mechanism
to cause one or other or both of those means to pull upon
the ball of the upper in a direction towards the shank of the
last, all constructed and operating substantially as described.
(25.) In a pulling-over or like machine, the combination of
a bar, a pair of grippers, a device (such, for example, as 196)
to be moved for closing the grippers, a second bar, means
for connecting said second bar and said device whereby the
first bar and grippers are caused to be lifted by the second
bar, and means (such, for example, as spring 170) to effect a
relative movement of said closing-device and said first bar
to relax the bite of the grippers. (26.) In a pulling-over or
like machine, the combination of a bar, a pair of grippers, a
device (such, for example, as 196) movable with relation to
said bar for closing the grippers, means (such, for example,
as spring 170) to impart a movement to said device for re-
leasing the grippers, and mechanism for retarding said re-
leasing movement of said device.
(Specification, 19s.; drawings, 4s.)

No. 14724.—9th April, 1902.—JOHN EDWARD FRIEND, of
Gore, New Zealand, Engineer. An improved digger for
dredges.

Claims.—(1.) In a dredge, a digger comprising a boss
with blades having a twist or pitch, the said digger being
mounted on the shaft of the bottom tumbler, substantially
as and for the purposes set forth. (2.) In a dredge, a digger
comprising a boss, blades dovetailed into the boss, said
blades having a twist or pitch, and a ring secured to the boss
to keep the blades in position, substantially as and for the
purposes set forth. (3.) The combination and arrangement
of parts comprising my improved digger for dredges, sub-
stantially as and for the purposes set forth.
(Specification, 1s. 3d.; drawings, 1s.)

No. 14725.—8th April, 1902.—THE AUSTRALIAN MANU-
FACTURING AND IMPORTING COMPANY, an unregistered com-
pany carrying on business at 125, Colombo Street, Christ-
church, New Zealand (assignees of James Clegg, of 169,
High Street, Christchurch aforesaid, Perambulator-manufac-
turer). Improvements in standards used in the game of
“ping-pong.”

Claim.—(1.) A standard for supporting the net in the
game of “ping-pong,” in which the vertical pillar is ar-
ranged to revolve and act as a roller upon which the net may
be wound, a ratchet-wheel fixed upon the pillar, and a pawl,
which when in engagement therewith prevents the pillar
from revolving in one direction, substantially as and for the
purpose specified.
(Specification, 1s. 3d.; drawings, 1s.)

No. 14726.—7th April, 1902.—JOSEPH LYBRAND FERRELL,
of 2218, Race Street, Philadelphia, Pennsylvania, United
States of America, Mechanical Engineer. Improvements in
wood-preserving.

Claims.—(1.) The described product, characterized by
capacity to resist flame, and consisting of wood impregnated
with a chloride mixed with another chemical capable of ob-
viating the hygroscopic tendency of the chloride. (2.) The
described product, characterized by capacity to resist flame,
and consisting of wood impregnated with a chloride mixed
with a sulphate capable of obviating the hygroscopic ten-
dency of the chloride. (3.) The described process of pre-
serving wood, which consists in impregnating wood with an
aqueous solution of a chloride mixed with another chemical
capable of obviating the hygroscopic tendency of the chloride,
and subsequently evaporating the moisture from the wood.
(4.) The described process of preserving wood, which consists
in impregnating wood with different chemical solutions in
succession, which solutions mutually decompose and deposit
a chloride mixed with another chemical capable of obviating
the hygroscopic tendency of the chloride, and subsequently
evaporating the moisture from the wood.
(Specification, 3s. 3d.)

No. 14728.—10th April, 1902.—CHARLES EMERY BILLIN, of
205, Goethe Street, Chicago, Illinois, United States of
America, Manufacturer (assignee of Walter Sabin McKinney,
of 1212, West Addison Street, Chicago aforesaid, Mechanical
Engineer). Improvements in stamp mills.

Extract from Specification.—My invention relates to
improvements in stamp mills for crushing or comminuting
ores and like hard substances, and refers more specifically to
that class of stamp mills provided with a stationary die or
dies and with reciprocating stamps or shoes. In the opera-
tion of stamp mills the dies and stamps or shoes are sub-
jected to constant wear, with the result that the correct
contact between the shoes and dies necessary to produce a
uniform product and to obtain the maximum output, or
to keep the mill up to its most effective and fullest crushing-
capacity, may be maintained only by providing adjusting-
means to compensate for this deterioration of the parts, and
to preserve the relation between the dies and shoes as
approximately constant as possible. In stamp mills, as now
generally constructed, the adjustment to provide for and
take up this constant wear of the shoes and dies is effected
by various expedients or devices, such, for example, as
lowering or resetting the steam-cylinder or removing dis-
tance-blocks in the frame. In all types of mills with which
I am familiar, and which embody some such analogous
form of device, the adjustment always results in a consider-
able loss of time, for it is necessary to stop the mill while
the changes are being made. Furthermore, the adjustment
is frequently improperly done, whereby the mill is not
properly set—as, for example, the piston-rod is often left out
of line with the guides. It is also apparent that in all such
types of mill a very serious loss of capacity results, owing
not only to the time consumed in making the required
adjustments, during which the mill is idle, but also due to
the fact that while the mill is running it is for much of the
time below its maximum output, owing to the very rapid
wear of the shoes and dies, which affects the effective
relation between these parts until another adjustment is
made. The primary object of the present invention is to
provide a stamp mill in which the proper adjustment to
compensate for the wear of the shoes and dies may be made
while the mill is in operation, whereby the relation between
the shoes and dies approximates the maximum effective
point at all times, and the mill is kept up to its fullest
capacity. Another object is to provide an adjusting-device
whereby the alignment of parts is not disturbed in any
manner in effecting the adjustment. Other objects of the
invention are to provide simple and effective means for con-
trolling the number of strokes of the stamp or shoe per
minute, and for regulating the force of the blow. With
these objects in view, the invention consists in an improved
mechanism to provide for the proper adjustment of the parts
while the mill is in operation, to compensate for the con-
stant and rapid wear of the shoes and dies, and, further, in
novel means to control the force of the blow of the stamp
and the frequency of its strokes.
[NOTE.—The number and length of the claims in this case pre-
clude them from being printed, and the foregoing extract from
the specification is inserted instead.]
(Specification, 11s. 6d.; drawings, 3s.)

No. 14729.—10th April, 1902.—CHARLES ALBERT KELLER,
of 3, Rue Vignon, Paris, France, Engineer. Electric blast-
furnace, and process for obtaining metals and their alloys.

Claims.—(1.) Improved process for obtaining metals or
alloys by the treatment of minerals and metals by means of