Nov. 28.] THE NEW ZEALAND GAZETTE. 3451

No. 23505.—23rd September, 1907.—ARTHUR REDMAN WILFLEY, of 1300 High Street, Denver, Colorado, United States of America, Mining Engineer. Improvements in ore-roasting process.

Extract from Specification.—In my improved process I make provision for an even roast of the ore by causing it to travel downwardly with a current of hot air instead of upwardly against said current as is the usual custom. Furthermore, at the lower extremity of the flue through which the ore is travelling downwardly I provide a cooling-medium, preferably a water-jacket, which is downwardly and outwardly inclined from the flue, whereby the ore is simultaneously cooled and carried outwardly away from the flue preparatory to its discharge from the furnace.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

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

No. 23536.—1st October, 1907.—COMMONWEALTH MANUFACTURING AND GALVANISING COMPANY, LIMITED, of Elizabeth Street, Brisbane, Queensland, Australia (assignees of William Job Howcroft, of Brisbane, Queensland, Engineer and Pattern-maker and Galvanised-iron Worker). A machine for folding the edges of sheet metal.

Claims.—(1.) In an ordinary tinsmiths’ folding-machine, the substitution of a bevelled blade B of any desired metal, shape, or dimensions in lieu of the ordinary blade as usually supplied. (2.) In an ordinary tinsmiths’ folding-machine, the addition of a blade B of any desired metal, shape, or dimensions working radially into and engaging with blade B. (3.) In an ordinary tinsmiths’ folding-machine, the addition of the necessary fixed and movable frames F and F¹ of any desired metal, shape, or dimensions to which blade B¹ may be attached and by which said blade B¹ can be worked.

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

No. 23542.—30th September, 1907.—WILLIAM HENRY LAWRENCE, Engineer, and ROBERT KENNEDY, Dairyman, both of Lawrence and Kennedy, 346 Pollokshaws Road, Glasgow, Scotland (nominees of Harvey Feldmeier, of Little Falls, New York State, United States of America). Improvements in suction milking-machines.

Extract from Specification.—The object of this invention is to actuate simultaneously and synchronously one or more pulsating-apparatus, conveniently situated in proximity to the teat-cups of the milking-apparatus, by intermittent and variable fluid-pressure transmitted through suitable pipes or channels from what may be termed a primary pulsator, which may be stationary and situated at any suitable distance from the secondary pulsators. With this system, which we may term a telepulsating system, two sets of pipes or channels are provided, one set connecting the suction-producing apparatus with the milk-receiver and indirectly with the teat-cups in which suction is constantly applied and by which the milking is effected, while the other set connects the primary with the secondary or telepulsators, causing the pistons or diaphragms of the latter to reciprocate and operate the pulsating valves which transform the continuous suction into intermittent suction and release at the teat-cups connected therewith. The secondary pulsators, which can be operated by two methods, are by one method actuated by continuous suction or pressure in conjunction with the fluid-pulsations transmitted by the primary pulsator, and by the other method they are actuated by the combined effect of the said fluid-pulsations in conjunction with the action of a spring or weight. In the first method the piston or diaphragm of the secondary pulsator is constructed on the differential principle described in the specification of letters patent hereinbefore referred to, having a lesser effective area upon which continuous suction or pressure is caused to act and a greater effective area upon which the fluid-pulsations of the primary pulsator are caused to act, producing reciprocations of the piston or diaphragm. In the second method a spring or weight is applied to the piston or diaphragm in place of the continuous suction, which tends to move the piston or diaphragm always in one direction.

[NOTE.—The above extract from the specification is inserted in place of the claims.]

(Specification, 17s.; drawing, 2s.)

No. 23543.—30th September, 1907.—WILLIAM HENRY LAWRENCE, Engineer, and ROBERT KENNEDY, Dairyman, both of Lawrence and Kennedy, 346 Pollokshaws Road, Glasgow, Scotland (nominees of Loomis Burrell, of Little Falls, New York State, United States of America). Improvements connected with suction milking-machines.

Claims.—(1.) A suction milking-machine having pneumatically operated and portable pulsating-apparatus for intermittently varying the degree of suction or fluid pressure at the teat-cups characterized by means for actuating the device which controls the movements of the pulsating of the said apparatus, substantially as described. (2.) A suction milking-machine having pneumatically operated and portable pulsating-apparatus for intermittently varying the degree of suction or fluid pressure at the teat-cups characterized by independent and yet portable motor-mechanism for actuating the valve which controls the movements of the pulsator of the said pulsating-apparatus, substantially as described. (3.) A milking-machine such as claimed in claim 1 having a portable spring-actuated motor for operating the controlling-valve of the pulsating-mechanism, substantially as described. (4.) A milking-machine such as claimed in claim 1 having an electrically actuated portable motor for operating the controlling-valve of the pulsating-mechanism, substantially as described. (5.) A milking-machine such as claimed in claims 1 and 2 having a cam for actuating the controlling-valve of the portable pulsating-apparatus, said cam being actuated by motor-mechanism, substantially as described. (6.) A milking-machine such as claimed in claim 1 having an electro-magnetic mechanism for actuating the controlling-valve of the pulsator, a generator and a circuit-breaker for supplying current intermittently to the electro-magnetic mechanism, substantially as described. (7.) Independent and portable motor-mechanism for operating the controlling-valve of the portable vacuum pulsating-mechanism of suction milking-machines constructed substantially as hereinbefore described, and shown under modifications on the drawings.

(Specification, 10s.; drawing, 2s.)

No. 23544.—30th September, 1907.—ROBERT FORBES MOORE, of Auckland, New Zealand, Civil Engineer. A metal-encased ferro-concrete bollard.

Claim.—The metal-encased ferro-concrete bollard specified consisting of a metal skin or casing having rods set in concrete rammed hard therein, with a shoulder and foot to said skin or casing, combined in the manner and for the purpose set forth, as described and illustrated.

(Specification, 1s. 9d.; drawings, 1s.)

No. 23560.—5th October, 1907.—ALBERT CEDERMAN, of Hokitika, Westland, New Zealand, Engineer. Improvements relating to sprocket-chains.

Claim.—In a sprocket-chain, the combination with the double links having recessed ends of a single link having cylindrical bosses at each end adapted to fit said recesses and between the two parts of said double link.

(Specification, 1s. 9d.; drawing, 1s.)

No. 23570.—10th October, 1907.—DAVID HECTOR BATCHEN, of 32 Grosvenor Crescent, Summerhill, Sydney, New South Wales, Australia, Clerk of Works. An improved interlocking roofing-tile.

Claims.—(1.) A roofing-tile characterized by a pair of right-angular lips extending along two adjacent sides of its upper face, a pair of similar lips extending along the two opposite sides on its under-face, a lug projecting from the under-face of the tile, and means for securing the tile to the battens of the roof, substantially as described, and illustrated in the drawings. (2.) An improved interlocking roofing-tile consisting of the modification of the tile referred to in claim 1 for the purpose of forming the ends of a roof, substantially as described, and as illustrated in the drawings. (3.) An improved interlocking roofing-tile consisting of the modification of the tile referred to in claim 1 for the purpose of forming the eaves of a roof, substantially as described, and as illustrated in the drawings.

(Specification, 3s. 6d.; drawing, 2s.)