Mar. 7.] THE NEW ZEALAND GAZETTE. 895

is desired to use the invention as an ordinary ladder the strut is raised to form an extension-piece and any one of its rungs placed in the brackets. Lateral sway is prevented by forming recesses in the head-board of the ladder, into which the sides of the strut are admitted.

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

(Specification, 4s. ; drawing, 1s.)

No. 22395.—6th February, 1907.—WILLIAM HENRY WAYCOTT, of Moore Street, Moonee Ponds, Victoria, Australia, Mechanical Engineer, and WILLIAM WILSON, of Milverton Street, Moonee Ponds, Victoria, Australia, Manager. Improvements in indicating-attachments for screw-cutting lathes.

Claims.—(1.) In screw-cutting-lathe attachments, a worm wheel geared to the leading-screw, and having a support fastened to the saddle and marked as an indicator. (2.) In screw-cutting-lathe attachments, a worm wheel geared to the leading-screw and having radial face or the like markings indicating teeth at predetermined distances apart. (3.) In an indicating worm wheel to gear with a screw-cutting-lathe leading-screw, edge markings as described, for ready visibility from above. (4.) In an indicating worm wheel to gear with a screw-cutting-lathe leading-screw, face projections or pins as described, readily visible from above and from the front. (5.) In combination with an indicating worm wheel to gear with a screw-cutting-lathe leading-screw, a bracket having sighting or indicating means consisting of a projection or marking. (6.) In combination with a worm wheel to gear with a screw-cutting-lathe leading-screw, an axle having a head having an indicating line, marking, or the like. (7.) A worm wheel to gear with a screw-cutting-lathe leading-screw, an axle-head receiving recess on one or both faces of the said wheel, and marking or indicating means on one or both the said faces.

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

No. 22398.—6th February, 1907.—WILLIAM STOCKS, of Vancouver, British Columbia, Canada, Bridge-builder. Stave-built pipes.

Claims.—(1.) In a stave-built pipe, two or more separate wires, each coiled as a helix on the outer side of the pipe, and means for anchoring the ends of said wires. (2.) In a stave-built pipe, two or more wires independently coiled on the outer side of the staves thereof, and means for independently anchoring the ends of each wire. (3.) In a stave-built pipe, two or more separate wires coiled parallel to one another on the outer side of the pipe, and means for anchoring the ends of said wire.

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

No. 22399.—6th February, 1907.—WILLIAM SILVER, of Peel Street, Tamworth, New South Wales, Australia, Engineer. Improvements in sheep-shearing machines.

Claims.—(1.) A knife or cutter-bar comprising a main bar and a forked piece, the main bar being pivoted at its rear extension and taking a bearing on the cutter at its forward end, the rear end of the fork-piece being mounted on the main bar by winged extensions and shoulder-pieces, and capable of vertical settling movement upon the cutter at its forked end, substantially as described. (2.) In a knife or cutter-bar formed of two parts—the main bar and forked piece—the former being provided with a tongue-piece, recesses, and shoulder-pieces, and the latter with winged extensions, web, flanges, and tension footstep bearing, and adapted to be mounted by its winged extensions upon the main bar, the parts being so constructed as to permit of vertical settling movement at their forward end relatively to one another, substantially as described. (3.) In a knife or cutter-bar formed of two parts for the purposes specified, the combination with tapered tongue, yoke-guard, rear extension, channelled recesses, and shoulder-pieces, of a forked end consisting of an upper web, side flanges, winged extensions, tension footstep bearing, and locking-pin, substantially as described. (4.) In a knife or cutter-bar for the purposes specified, the combination with a main bar adapted to be pivoted to the case of the machine, and provided with tongue-extension, yoke-guard, and centre finger, of a forked end, recessed and furnished with winged extensions adapted to be mounted upon the main bar, and locked thereto, the bar and forked extensions being capable of vertical movement relatively to one another, substantially as described. (5.) In a knife or cutter-bar formed of two parts, the combination of a main bar provided with tongue, rear extension, channelled recesses, and shoulder-pieces, of a forked end provided with winged extensions, lower web, upwardly projecting side-flanges, tension footstep bearing, and locking-pin, substantially as described. (6.) In a knife or cutter-bar for the purposes described, an L-shaped yoke or guard-piece formed on the centre spring finger, and adapted to close the aperture between the main bar and the forked piece, and to lock the latter in position on the main bar, substantially as described. (7.) In a knife or cutter-bar for the purposes specified, a yoke or guard-piece formed on the centre finger of the main bar and adapted to close the aperture between the latter and the forked piece, substantially as described.

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

No. 22401.—6th February, 1907.—REGINALD E. G. BURROUGHS, of New Liskeard, Ontario, Canada, Merchant. Improvements in pipe-cleaners.

Claims.—(1.) In a device of the class described, in combination with a pipe, an elastic bulb adapted to fit tightly over the bowl of the pipe, and means for alternately injecting and ejecting a solvent fluid through the stem of the pipe. (2.) A device of the class described comprising a rubber bulb adapted to fit over the bowl of a pipe, and means for alternately injecting and ejecting alcohol through the mouthpiece of the pipe. (3.) A method of cleaning pipes which consists in ejecting the air from the bore of the pipe, and alternately injecting and ejecting a volatile solvent fluid through the bore into a suitable receptacle containing the fluid by means of an elastic bulb fitted on to the bowl of the pipe, substantially as described.

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

No. 22405.—7th February, 1907.—AARON SCHWARTZ, of Christchurch, New Zealand, Broker (nominee of Charles Houton Avey, of Los Angeles, California, United States of America, Mining Promoter). An improved feed receptacle or bag for horses or the like.

Claims.—(1.) A feed receptacle or bag having an air-inlet capable of expansion upon tipping a portion of the bag. (2.) A feed bag or receptacle having a transverse ventilating-opening capable of expansion and contraction upon the bending of the bag or receptacle. (3.) A feed receptacle or bag comprising a feed-holding portion, an attaching portion, and means connecting said portions, an expansible opening being formed between the portions to ventilate the said receptacle or bag. (4.) A feed receptacle or bag comprising upper and lower portions separated for a portion of their circumference to afford an expansible air-inlet, and pivotal means connecting the said portions. (5.) A ventilated feed receptacle or bag comprising enclosing walls and a bottom; the said enclosing walls divided for a portion of the distance around the bag, forming upper and lower bag portions, and a flexible portion arranged in the undivided part of the said walls, facilitating the tipping of the upper portion of the bag and the spreading of the opening between the divided parts of the walls. (6.) A ventilated feed receptacle or bag comprising a lower feed-holding portion, an upper attaching portion, rivets for securing the said portions opposite the central portion of the bag, and flexible means arranged opposite the rivets upon one side of the bag to facilitate its folding, the said bag being divided upon the opposite side of the rivets from said flexible portion, the dividing of the bag providing an expansible opening for the introduction of the air. (7.) A feed receptacle or bag comprising a lower feed-holding portion, an upper attaching portion, the said lower portion projecting beyond the upper portion upon one side of the bag for forming an air-inlet, and means connecting the two portions of the bag for permitting them to rock with respect to each other. (8.) A feed receptacle or bag comprising an upper animal-engaging portion, a lower feed-carrying portion pivotally mounted upon the said upper portion, an opening being left between the said portions upon one side of the bag, and a flexible piece of material connecting the said portions upon the other side of the bag, the rocking of the upper portion of the bag causing the spreading of the opening in the side thereof. (9.) A feed receptacle or bag having an upper supporting portion, a lower swinging portion, means connecting the two portions and permitting the swinging of the lower portion under the weight of itself and contents, stiffening-bars extending longitudinally of the upper support-