1022
THE NEW ZEALAND GAZETTE.
[No. 48

Manufacturer. An invention for improvements in explosive
compounds. (Specification, 10s. 6d.)

No. 7690.—20th June, 1895.—ABRAHAM WEIL, of 291,
Höxterstrasse, and WILHELM PRASSE, of Bahnhofstrasse,
both in Steinheim, Westphalia, Germany, Merchants. An
invention for improvements in apparatus for moulding tiles.
(Specification, 4s. 6d.; drawings, 10s.)

No. 7694.—21st June, 1895.—DAVID WILLIAMS, of Reefton,
New Zealand, Blacksmith. An invention for an improved
tumbler for dredging-machines. (Specification, 6s.; draw-
ings, 10s.)

No. 7695.—21st June, 1895.—HERBERT OBERLIN BROWN,
of Auckland, New Zealand, Gentleman. An invention for
a combined ruler and blotting-roller. (Specification, 3s. 6d.;
drawings, 3s.)

No. 7696.—22nd June, 1895.—THE DIAMOND MATCH COM-
PANY, a corporation organized under the laws of the State of
Illinois, one of the United States of America, and having
their principal place of business in the Pullman Building,
Chicago, Illinois aforesaid (assignees of Ebenezer Benton
Beecher, of 25, Franklin Street, Westville, and Jacob Pulver
Wright, of 46, Avon Street, New Haven, both in Connecticut,
United States of America, aforesaid). An invention for im-
provements in and relating to machines for making matches.
(Specification, £6 10s.; drawings, £7.)

No. 7700.—24th June, 1895.—GRAHAM SARJEANT CORY and
COLIN CORY, both of Port Tennant Chemical Company's
Works, Swansea, England, Manufacturers. An invention
for improvements in the manufacture of artificial fuel.
(Specification, 4s. 6d.)

F. WALDEGRAVE,
Deputy Registrar.

NOTE.—The cost of transcribing the specification and an
estimate of the amount required for copying the drawings
have been inserted after the notice of each application. Any
order for a copy or copies should be accompanied by a post-
office order or postal notes for the cost of copying.

An asterisk (*) denotes the complete specification of an in-
vention for which a provisional specification has been already
lodged.

The date of acceptance of each application is given after
the number.

Provisional Specifications.

Patent Office,
Wellington, 26th June, 1895.

A PPLICATIONS for Letters Patent, with provisional
specifications, have been accepted as under:—

No. 7654.—7th June, 1895.—GEORGE AITKEN, of Foxton,
New Zealand, Clerk in Holy Orders. An invention for an
improved letter-card for use in postal correspondence.

No. 7674.—7th June, 1895.—WILLIAM GEORGE GREY, of
Remuera, Auckland, New Zealand, Storeman. An invention
entitled "The Grey Safety Hurdle," in connection with
hurdle-racing.

No. 7677.—10th June, 1895.—CHARLES BURGESS DUFF
and JAMES NAUGHTIE DUFF, trading as "Duff and Son,"
Balcutha, New Zealand, Blacksmiths. An invention for an
improved rabbit-trap.

No. 7678.—10th June, 1895.—GEORGE FROST, of Seafield
View Road, Auckland, New Zealand, Mariner. An invention
for an improved carriage, without axletrees or springs, for
the transport on land of goods or passengers.

No. 7682.—15th June, 1895.—HENRY SHATTY, of Hastings,
New Zealand, Engineer. An invention entitled "Zealandia
Horse-race Starting-machine."

No. 7688.—19th June, 1895.—WILLIAM TYRER, of 42,
Lambton Quay, Wellington, New Zealand, Photographer.
An invention for an improved method of and apparatus for
hanging window-curtains and the like.

No. 7691.—20th June, 1895.—THE CASSEL GOLD EXTRACT-
ING COMPANY (LIMITED), of 108A, Hope Street, Glasgow,
North Britain (assignees of John Stewart MacArthur, of
12, Knowe Terrace, Pollokshields, North Britain aforesaid,
Technical Chemist, and John Yates, of 13, West Scotland
Street, Kinning Park, Glasgow aforesaid, Engineer). An
invention for improvements in the process of and apparatus
for extracting gold and silver from ores and the like.

No. 7693.—21st June, 1895.—HENRY MONTAGUE MERI-
DITH, of Morkesprings, Qininidi, New South Wales, Station
Manager. An invention for an improved apparatus for
cutting drains and tracks.

No. 7698.—24th June, 1895.—FRANCIS BRADY, of 42,
Lambton Quay, Wellington, New Zealand, Carpenter. An
invention for improved box or bin for storing and weighing
coal and produce.

No. 7699.—24th June, 1895.—JOHN VALENTINE, of 42,
Lambton Quay, Wellington, New Zealand, Engineer. An
invention for an improved cover for washing-coppers and the
like.

No. 7701.—21st June, 1895.—ROBERT WALKER, of Stuart
Street, Dunedin, New Zealand, Tinsmith. An invention for
improvements in milk-cans and other similar vessels.

No. 7702.—25th June, 1895.—JAMES COPELAND, of Bruns-
wick Line, near Wanganui, New Zealand, Farmer. An
invention for an improved totalisator.

F. WALDEGRAVE,
Deputy Registrar.

NOTE.—Provisional specifications cannot be inspected, or
their contents made known by this office in any way, until
the complete specifications in connection therewith have
been accepted.

The date of acceptance of each application is given after
the number.

Notice of Request to amend Specification.

Patent Office,
Wellington, 26th June, 1895.

A REQUEST for leave to amend the specification (in-
cluding drawings) relating to the under-mentioned
application for letters patent has been received, and is open
to public inspection at this office. Any person may at any
time within one month from the date of this Gazette give
me notice in writing of opposition to the amendments.
Such notice must set forth the particular grounds of objec-
tion, and be in duplicate. A fee of 10s. is payable thereon.

No. 6914.—20th June, 1894.—EDGAR ARTHUR ASHCROFT,
of Broken Hill, New South Wales, Electrical Engineer. An
invention for an improved process of treating refractory
ores, and apparatus to be used therein.

The nature of the proposed amendments is as follows,
viz.:—

1. To strike out the words "ores, and apparatus to be used
   therein," appearing in the title, and to insert instead the
   words "zinc-bearing ores or products, particularly applicable
   to those containing zinc and lead sulphides."

2. To strike out the words "and apparatus to be used
   for," line 2, page 2.

3. To strike out the word "mechanical," lines 9 and 10,
   page 2.

4. To insert at the end of the paragraph terminating in
   the word "solutions," line 28, page 2, the words "and re-
   sidues, and the treatment of ores hitherto impracticable on
   a commercial scale, is rendered practicable and profitable."

5. To strike out the word "neutral," and to add the
   letter "s" to the word "Sulphate," line 18, page 3.

6. To prefix to the word "oxide," lines 29 and 31, page 4,
   the letters or word, &c., "hydr."

7. To alter the formula, line 30, page 4, by inserting
   "+3H₂O" immediately after "(SO₄)" and by substituting
   "Fe₂(OH)₆" for "Fe₂O₃."

8. To strike out the word "This," line 3, page 5, and to
   substitute therefor the words "The foregoing."

9. To strike out the words, "In either case it is preferable
   to employ the solution hot and to conduct the operation in
   two," lines 8–10, page 5, and to insert in place thereof the
   words, "It has been found experimentally that this leaching
   can be best accomplished by sliming or grinding the ore to
   extreme fineness after or before roasting, then stirring a
   given quantity of ore up with the solution, the quantity being
   calculated so that when sufficient zinc has been extracted
   from the ore to render the residues of a convenient compo-
   sition for subsequent smelting, the solution will be freed from
   zinc. For instance, with ores containing 30 per cent. of
   zinc, probably some 5 per cent. would preferably be allowed to
   remain in the residues on account of the higher cost of total
   extraction. The operation may be conducted in one."

10. To strike out the words, "together with the due com-
    plement of iron oxide flux for the same, are preferably dried,"
    lines 10, 11, page 6, and to insert in place thereof the words,
    "containing ferric hydroxide are preferably dried at a suit-
    able temperature."

11. To insert immediately after the word "substances,"
    line 13, page 6, the words "such as lime."

12. To insert at the end of the paragraph terminating in
    the word "furnace," line 17, page 6, the words, "and will
    also act as valuable flux in the smelting operation."

13. To strike out the words "as sulphate of silver," line
    22, page 6.

14. To strike out the word "formed," line 23, page 6, and
    to insert in place thereof the word "derived."

15. To insert, immediately after the word "silver," line 24,
    page 6, the words, "and the removal of objectional im-
    purities by."

16. To strike out the words "by the action of," line 24,
    page 6.

17. To strike out the words "Alkaline reagent such as
    lime, soda, or magnesia," lines 25, 26, page 6, and to insert
    in place thereof the words, "other suitable chemical re-
    agent, in manner well known to all persons versed in the art
    to which this invention appertains, and in no way constitut-
    ing part of my invention."