May 30.] THE NEW ZEALAND GAZETTE. 1237

stantially as specified, and shown in the drawings. (3.) The combination with a gate, of a lever, supports, wheels, and rails attached to a post made of plank, a centre block and a cap, of a guide-rod working through a hole in the cap of the post, the lower end attached to the axle carrying the wheels of the lever, and having a projecting eye near its lower end, to which is attached the rods on the ends of the operating levers, which are fulcrumed on a suitably braced cross-beam attached to the post, and the outer ends of each lever having a drop-rod, all substantially as described, and shown in the drawings.
(Specification, 3s. 6d.; drawings, 1s.)

No. 13564.—27th May, 1901.—EBENEZER JOHNSTON PATON, Engine-driver, and WALTER ALLAN ASHE WOODS, Journalist, both of Stanley Chambers, 337, Pitt Street, Sydney, New South Wales. An improved ship-scrubbing machine, for removing marine growths from ships’ hulls while afloat.

Claims.—(1.) In appliances for removing marine growths from ships while afloat, a watertight chamber fitted with machinery to operate an attached cylindrical brush and propeller, means of lighting, and accommodation for an operator. (2.) In such appliances, an adjustable frame M, M (Plan 1), carrying the said cylindrical brush arranged on a central pivot (see Plan 3) so as to be set at any required angle on a ship’s plating. (3.) In such appliances, cranked axles or hinged legs H, H, H, H (Plan 1), whereby the apparatus, while remaining secured to traveller-hawsers L, L (Plan 1) is permitted to swing into the concave portions of a ship’s hull so as to keep the revolving brush in contact with the ship’s plating. (4.) In such appliances, a propeller made to revolve on the outer side of the watertight chamber for securing pressure of the brush against the ship’s skin. (5.) In such appliances or machines, the combination of the above-named contrivances with methods of hoisting and fleeting the apparatus, attaching it to side of ship, conveying air and motive force to the submerged chamber, &c., as described, and illustrated in the drawings.
(Specification, 3s. 6d.; drawings, 3s.)

No. 13592.—9th May, 1901.—EDWIN TOMS, of Victoria Street, Wellington, New Zealand, Commercial Traveller, and ANDREW CHARLES POCOCK, of Dannevirke, New Zealand, Plumber. An improved acetylene-gas generator.

Claims.—(1.) The acetylene-gas generator substantially as set forth. (2.) In an acetylene-gas generator having a tank divided into two parts by a horizontal partition, a purifier passing through the said partition, and provided with holes for the admission of water, and other holes close beneath the partition for escape of gas to the lower part of the tank, substantially as set forth.
(Specification, 3s.; drawings, 2s.)

No. 13607.—8th May, 1901.—WILLIAM AMBROSE GOODWIN, of Sydenham, Canterbury, New Zealand, Commission Agent. A binder for securing ceiling-joists to the stiffening-pieces or hangers.

Claim.—A binder for securing ceiling-joists to the stiffening-pieces or hangers, consisting of a piece of suitable metal, having the ends turned at right angles to the main portion, and also at right angles to each other, each end being preferably flattened, tapered, and jagged, substantially as described, and illustrated in the drawings.
(Specification, 2s.; drawings, 1s.)

No. 13614.—15th May, 1901.—GUSTAVE LOUIS MOUCHEL, of 38, Victoria Street, London, England, Engineer. Improvements in and relating to metal-and-concrete structures.

Claims.—(1.) A structure comprising the combination of a shell or body composed of concrete and having a relatively large cavity, a rigid strengthening metal skeleton imbedded in the concrete, and stiffening diaphragms of concrete moulded with the body and extending wholly or partly across the cavity, substantially as and for the purposes described. (2.) A pile or pile-like structure comprising the combination of a pile-body composed of concrete and having a central longitudinal cavity, a rigid strengthening longitudinal metal skeleton imbedded in the concrete, stiffening diaphragms of concrete moulded with the body and extending across the central cavity, and with or without strengthening metal skeletons imbedded in the said concrete diaphragms, substantially as described. (3.) A pile or pile-like structure comprising the combination of a pile-body composed of concrete, and a bearing slab or collar moulded in one piece with the pile-body, substantially as described.

(4.) A pile or pile-like structure comprising the combination of a pile-body composed of concrete and formed with a cavity in its top, a loose pile-head of concrete formed with a concave bearing-surface in its top, and with a lower portion adapted to enter and be fixed by grouting in the cavity in the top of the pile-body, and a bearing slab or plate moulded with the pile-head below the concave bearing-surface thereof, substantially as described. (5.) A sheet pile comprising the combination of a pile-body composed of concrete and formed with a central longitudinal cavity, a longitudinal groove moulded in one side of the pile-body, a longitudinal groove moulded in the opposite side of the pile-body, pieces of metal imbedded in the concrete body at intervals along its length and projecting into and beyond the last-mentioned groove, and apertures formed in the pile-body on the side of the said last-mentioned groove in between the said pieces of metal, and affording communication between the central longitudinal cavity of the pile-body and the said last-mentioned groove, substantially as described. (6.) A screw pile or pile-like structure comprising the combination of a pile-body composed of concrete, a rigid strengthening longitudinal metal skeleton imbedded in the concrete, and a screw shoe connected to the said metal skeleton in such a manner that the twisting effort in driving the pile is transmitted to the screw shoe through said metal skeleton without stressing the concrete of the pile-body, substantially as described. (7.) A screw pile or pile-like structure comprising the combination of a pile-body composed of concrete and formed with a central longitudinal cavity, a rigid strengthening metal skeleton imbedded in the concrete, a screw shoe, means for connecting said screw shoe directly to the metal skeleton, and means whereby the screw shoe can be rotated by a mandrel inserted through the longitudinal cavity, substantially as described. (8.) A screw pile or pile-like structure comprising the combination of a pile-body of concrete with a central longitudinal cavity, a rigid strengthening metal skeleton imbedded in the concrete, a screw shoe, means for supporting the screw shoe rotatably from the metal skeleton, and means whereby the screw shoe can be rotated by a mandrel inserted through the longitudinal cavity without transmitting twisting motion to the pile-body, substantially as described. (9.) A screw pile or pile-like structure comprising the combination of a concrete pile-body, a plurality of vertical longitudinal metal bars imbedded in the concrete, a metal screw shoe connected to the lower end of the pile-body, and auxiliary metal screw-blades threaded on the said vertical bars at intervals along the length of the pile-body, and means for preventing said auxiliary screw-blades from longitudinal movement, substantially as described. (10.) For guiding sheet piles whilst being driven, the use of movable solid or tubular pieces of metal or other hard material inside the longitudinal cavity formed by grooves in the adjacent sides of two sheet piles, substantially as decribed. (11.) In driving concrete piles, a cushion to receive the blows of a pile-driver, composed of a mixture of pulverulent substance with an elastic substance, substantially as described. (12.) In driving concrete piles, a metal tube or cylinder open at both ends placed around the head of the pile and filled with a mixture of pulverulent substance with an elastic substance, substantially as described. (13.) A pile or pile-like structure of the kind hereinbefore referred to, comprising a concrete head having imbedded in it relatively short vertical metal bars or rods of suitable aggregate cross-sectional area, substantially as and for the purpose described. (14.) In a concrete pile, the combination of a pile-body moulded in lengths, cavities formed in the adjacent ends of said lengths, a core-piece engaging in the facing cavities of two adjacent lengths, and a cement joint filling the spaces between the said facing ends and between the core-piece and the walls of the cavities, whereby two adjacent lengths of the pile are securely jointed together, substantially as described. (15.) In a concrete pile, the combination of a pile-body moulded in lengths, cavities formed in the adjacent ends of said lengths, a core-piece engaging in the facing cavities of two adjacent lengths, a metal collar clamped around the said facing ends, and a cement joint filling the spaces between the said facing ends and between the core-piece and the walls of the cavities, whereby two adjacent lengths of the pile are securely jointed together, substantially as described. (16.) In a concrete pile, the combination of a pile-body moulded in lengths, cavities formed in the adjacent ends of said lengths, binding-rods moulded in the concrete around said cavities in said lengths and projecting into the space between said adjacent ends, a core-piece engaging in said cavities, a metal collar clamped around the said adjacent ends, and a cement joint filling the spaces between the said adjacent ends and around said binding-rods and between the core-piece and the walls of the cavities, whereby two adjacent lengths of the pile are securely jointed together, substantially as described. (17.) In a concrete pile, the combination of a pile-body moulded in lengths, socket-tubes imbedded in the upper end of a lower length, strengthening rods moulded in and projecting from the