May 16.] THE NEW ZEALAND GAZETTE. 1599

inside the lower end of said cylindrical casing, said piston being attached by a milk-discharge tube to the bottom of the teat-cup, a compressed-air and vacuum tube passing through the said piston and communicating with an annular chamber between the said teat-cup and the cylindrical casing, all as and for the purposes described, or as illustrated in the drawings.

(Specification, 11s. 6d.; drawing, 2s.)

No. 22576.—21st March, 1907.—ALFRED HANKINSON, of 107 Pitt Street, Sydney, New South Wales, Australia, Importer. An improved wire lattice for reinforcing concrete floors and the like.

Claims.—(1.) An improved wire lattice for reinforcing concrete floors and the like, characterized by one set of tension wires straight and the other set of binding-wires crimped and of less diameter or thickness. (2.) A wire lattice of the construction set out in claim 1, in combination with a concrete floor or the like.

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

No. 22579.—21st March, 1907.—THE KENDRICK AND HILL MANUFACTURING COMPANY, of 720 Exchange Building, Denver, Colorado, United States of America (assignees of Alfred Hill, of 3242 Cook Street, Denver aforesaid). Improvements in lawn-mowers.

Claims.—(1.) In a lawn-mower, the combination with the ground wheels, cutting device, and gears, the gears adjacent the ground wheels being provided with interiorly and exteriorly located teeth or lugs, formed substantially the same on both sides, and a pawl-holder mounted on each ground wheel and adjustable, and a pawl carried by the pawl-holder, the latter being capable of such adjustment as to bring the pawl into operative engagement with opposite sides of the teeth or lugs of the gear, whereby the gearing may be operated by moving the machine in either direction. (2.) In a device of the class described, the combination of a ground wheel, a gear located in suitable proximity to the ground wheel and provided with interior and exterior teeth fashioned to engage a pawl on opposite sides for operating the gear in the reverse directions, a pawl-holder rotatably mounted on the ground wheel, and a pawl slidable in the pawl-holder, whereby when the holder is in one position the pawl occupies such a position with reference to the teeth or lugs of the gear that the latter may be rotated in one direction, while when the pawl-holder is given a half-turn the pawl will engage the teeth or lugs of the gear to rotate the latter in the opposite direction. (3.) In a lawn-mower, the combination with the ground wheels, cutter, and interposed gearing, of means mounted on the machine for reversing the movement of the operating-gears when the motion of the ground wheels is reversed, comprising a pawl-holder rotatably adjustable on a ground wheel, the gear adjacent the ground wheel being provided with interiorly and exteriorly projecting lugs arranged in concentric series and adapted to be engaged in operative relation by the pawl when the latter is on either side thereof. (4.) In a machine of the class described, the combination with a ground wheel, of a pawl slidable mounted and revolubly adjustable on the ground wheel. (5.) In a machine of the class described, the combination with a ground wheel, of a pawl-holder revolubly mounted on the ground wheel, and a pawl slidable in the holder and having beveled ends. (6.) In a machine of the class described, the combination with a ground wheel, of a pawl-holder revolubly mounted on the ground wheel, and a pawl slidable in the holder, and having both ends beveled on one side of the pawl. (7.) In a lawn-mower, the combination with the ground wheels, a cutter, and an operating-gear, of a sleeve mounted on a ground wheel, a pawl-holder having a stem passing through said sleeve, a spring surrounding the stem within the sleeve, the pawl-holder having a head projecting beyond the sleeve and provided with a lug, the sleeve adjacent the head having a recess adapted to receive the lug whereby the pawl-holder is normally locked in the adjusted position, the pawl-holder being revolubly adjustable in the sleeve, and a pawl slidable in the pawl-holder and engaging the gear, for the purpose set forth. (8.) In a machine of the class described, the combination with a pair of ground wheels, of a pawl-holder revolubly mounted on each wheel, and a pawl slidable in the holder.

(Specification, 9s.; drawing, 2s.)

No. 22580.—21st March, 1907.—JOHN WHITEHOUSE, of Waihi, Auckland, New Zealand, Engine-driver. Improved adjustable wire-mattress bed.

Claims.—(1.) An improved mattress, consisting of the parts constructed, combined, arranged, and operating substantially as described and illustrated. (2.) A mattress-frame in two sections, one hinged upon the other, a toothed quadrant, and a system of levers for adjusting the angle of one section relatively to the other, and means for operating said quadrant, substantially as specified and illustrated.

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

No. 22598.—23rd March, 1907.—HAROLD ROCHFORT, of Custom Street West, Auckland, New Zealand, Engineer. A filtering suction-hose.

Claim.—The filtering suction-hose specified, consisting of the cover made of canvas or the like filtering material, and the metal-coil projected thereinto so as to fit closely within same, for the purpose set forth, as described and illustrated.

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

No. 22606.—25th March, 1907.—INTERNATIONAL SAND BLAST COMPANY, of 504 California Street, San Francisco, California, United States of America (assignees of William H. Kelly, of 504 California Street, San Francisco, aforesaid). Improvements in sand-blast apparatus.

Claims.—(1.) In a sand-blast nozzle, a hollow body provided with a reservoir at one side of the main passage and having a contract throat, a substantially continuous air-passage leading from the reservoir opposite the rear wall thereof and having an opening in its wall, and means for delivering an abrading-material to said passage through said opening. (2.) A sand-blast nozzle having a passage for the propelling-fluid, with a removable tip, and a passage for the abrading-material, said second passage being disposed at an angle to the axis of the first passage, and communicating therewith intermediate its ends, the second passage having a removable tip, the tips of both passages being interchangeable. (3.) In a sand-blast nozzle, a hollow substantially boot-shaped body having an inclined opening through the toe, the inner end of the opening being tapered and the outer end screw-threaded, a casing removably secured to the bottom of the body, the forward end of which is provided with a tapering opening, interchangeable tapering tips in said openings, each provided with a tapering bore, a hollow screw-threaded connector in the outer end of said inclined opening for securing said tip in the inner end and delivering sand thereto, and a nipple leading from the hollow of the body nearly to the rear end of the front tip, and having a bore of a less diameter than the rear end of the bore in said tip. (4.) In a sand-blast nozzle, a hollow substantially boot-shaped body the bottom of which is screw-threaded exteriorly, and the toe is provided with an inclined opening, an interiorly and exteriorly inclined hollow casing at the bottom of the boot, the smaller end of which is provided with an axial opening, a tapering clamping-band engaging with the larger end of the casing and with the screw-threaded portion of the body, interchangeable tips in said openings, a nipple from the hollow of the body nearly to the rear end of the forward tip, and a connector in the inclined opening to the rear of the tip therein.

(Specification, 5s. 9d.; drawing, 1s.)

No. 22607.—25th March, 1907.—FREDERICK WILLIAM BARTON, of Maori Hill, Dunedin, New Zealand, Inventor. Improved cellar lift for casks or packages, &c.

Claims.—(1.) In lifting casks from cellars or the like, the combination of ropes connected at intervals by cords or network, and being fixed at the top front edge of the well, passing beneath the said cask and over a drum for raising or lowering, with or without the addition of a windlass-drum, and all substantially as shown on the drawing, and as described and explained. (2.) In lifting packages from cellars or the like, the combination of ropes connected together at intervals by cords or network passing over two drums arranged for raising or lowering same, all substantially as set forth, and as described and explained.

(Specification, 2s. 3d.; drawing, 1s.)