Numb. 78. 1703

SUPPLEMENT
TO THE
NEW ZEALAND GAZETTE
OF
THURSDAY, AUGUST 22, 1901.
Published by Authority.

WELLINGTON, THURSDAY, AUGUST 22, 1901.

CONTENTS.

Complete Specifications accepted .. .. .. 1703
Provisional Specifications accepted .. .. .. 1707
Letters Patent sealed .. .. .. 1708
Letters Patent on which Fees have been paid .. 1708
Subsequent Proprietors of Letters Patent .. 1708
Request to amend Specification allowed .. 1708
Applications for Letters Patent abandoned .. 1708
Applications for Letters Patent lapsed .. 1709
Letters Patent void .. .. .. 1709
Design registered .. .. .. 1709
Applications for Registration of Trade Marks .. 1709
Trade Marks registered .. .. .. 1711
Trade Mark Renewal Fee paid .. .. .. 1711
Subsequent Proprietors of Trade Marks .. 1711
Request to amend Trade Mark application .. 1711

Notice of Acceptance of Complete Specifications.

Patent Office,
Wellington, 21st August, 1901.

COMPLETE specifications relating to the under-mentioned applications for Letters Patent have been accepted, and are open to public inspection at this office. Any person may, at any time within two months from the date of this Gazette, give me notice in writing of opposition to the grant of any such patent. Such notice must set forth the particular grounds of objection, and be in duplicate. A fee of 10s. is payable thereon.

No. 13086.—20th October, 1900.—WILLIAM THORNTON FIRTH and EDWARD THOMPSON FIRTH, of Auckland, New Zealand, Pumice Merchants. An improved pumice insulator for the exclusion of heat, cold, or sound.*

Claim.—Forming a non-conducting or heat-insulating material for diminishing the transmission of heat, cold, or sound through the walls of structures of various kinds, and packed between the walls of such structures, used either in an uncombined form or contained within a medium, substantially as described. The especial novelty of this invention is the manner in which sealed pumice-particles are formed by heat as described, and causing complete or partial fusion without destroying the cellular structure of the pumice so treated, and a very much increased and sealed cellular state is thereby formed, by the swelling of the particles due to internal pressure, within the particles themselves. A large increase in the dead air enclosed in each particle is obtained by our process as described, which combined with the exceeding lightness or low specific gravity makes it especially suitable as a heat- or cold-insulating material. The sealed air-spaces in the improved pumice insulator also prevent the absorption of water, gases, microbes, ferments, or moulds within the particles, thus preventing the accumulation, and eventual destruction, of the efficiency of the insulation in cold-storage-room walls or other places.
(Specification, 2s. 6d.)

No. 13436.—1st March, 1901.—THE GODFREY CALCINER, LIMITED, of 55, Suffolk House, 5, Lawrence Pountney Hill, London, England (assignees of Joseph Godfrey, of 55, Walter Road, Swansea, England, Assayer, and Henry John Hayes, of 203, Eaton Crescent, Swansea aforesaid, Commercial Agent). Improvements in or relating to mechanical calcining-furnaces.

Claims.—(1.) Calcining-furnaces in which the material under treatment is alternately heated by the products of combustion, and exposed to the outer air out of contact with the said products. (2.) Calcining-furnaces having a rotating bed, and a fixed roof in the form of a segment of a circle. (3.) The combination of the rotating bed, ploughs above the bed, and means for adjusting the angle of the ploughs with respect to the direction of motion of the bed. (4.) Calcining-furnaces substantially as described, and illustrated in the drawings.
(Specification, 4s.; drawings, 1s.)

No. 13576.—3rd May, 1901.—FRANKLIN GEORGE BENSON, of Cheltenham Street, Malvern, South Australia, Engineer. Improvements in sprayers for perfume, antiseptics, and the like.

Claims.—(1.) In improvements in sprayers for perfume, antiseptics, and the like, the combination with the container-cylinder of a separate air-chamber communicating with the container-cylinder by means of an air-pipe and a controlling-valve. (2.) In improvements in sprayers for perfume, antiseptics, and the like, the combination of a container-cylinder,