2784
THE NEW ZEALAND GAZETTE.
[No. 88

No. 21184.—24th June, 1905.—THE HONOURABLE CHARLES ALGERNON PARSONS, of Heaton Works, Newcastle-on-Tyne, England, Engineer. Improvements in dynamo electric machinery.

[NOTE.—This is an application under section 106 of the Act, the date given being the official date of the application in Great Britain.]

Claims.—(1.) In dynamo electric machinery, the use of longitudinal projections or prolongations on the armature, said projections containing magnetic material so arranged as to afford a path for stray field, substantially as and for the purposes described. (2.) In dynamo electric machinery, the use of laminated magnetic material beyond the pole pieces but in the magnetic field, substantially as and for the purposes described. (3.) In dynamo electric machinery, as claimed in claim 1, forming the projections or prolongations of laminated magnetic material having thicker insulation or non-magnetic material between the laminæ as the field is weaker, substantially as and for the purposes described. (4.) In dynamo electric machinery, as claimed in claim 1, forming the projections or prolongations external to the armature, substantially as and for the purposes described. (5.) The armature cores for dynamo electric machinery, substantially as described and diagrammatically shown in Figs. 1, 2, and 3.

(Specification, 4s. 6d.; drawing, 2s.)

No. 21187.—23rd May, 1906.—HAROLD IRWIN, of Tikokino, New Zealand. Improvements in alarms.*

Claims.—(1.) In alarms of the class described, a body portion having a cover and an inclined bottom with a central opening therein, a removable bottom portion of gauze or perforated material adapted to be supported thereon, and means within the body portion whereby a main fuse, having crackers suspended therefrom at intervals, may be supported in one continuous strip so that the crackers will hang loosely down within the body portion, substantially as described. (2.) In alarms of the class described, a body portion such as that referred to in claim 1, a continuous strip of metal supported within the top of the body portion, and hooks or forks upon the metal strip at intervals throughout its length, adapted to receive the main fuse, substantially as specified. (3.) In alarms of the class described, the general arrangement, construction, and combination of parts set forth, and as illustrated in the drawings.

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

No. 21265.—6th June, 1906.—RICHARD COSSLETT, of 1 Cheapside, Whiteladies Road, Clifton, Bristol, England, Architect. Improvements in taps and cocks.

Claim.—The body with bevelled seating at an angle of 57 to 60 (more or less), one female screw, and draining-channel, in combination with actuating-screw and chamber for plug and stopping-slot, and handle to operate with, and self-adjusting plug or stopper, preferably of wood, preferably spherical on face, with stem to fit chamber, substantially as set forth and described in drawings and specification.

(Specification, 2s. 9d.; drawing, 1s.)

No. 21266.—7th June, 1906.—BERTRAM GEORGE AIKEN HARKNESS, of Stratford, Taranaki, New Zealand, Engineer. An improved vacuum-pump.*

Extract from Specification.—My invention consists of a cylinder fitted with piston and ring. At each end of cylinder a bolted-on cover, having two ports diametrically opposite at outer ends, the inner ends forming one port and communicating with the cylinder. The outer ends of ports are at right angles to line of cylinder. Into these outer ends of ports are screwed valve-casings shaped like the bowl and stem of a tobacco-pipe, so that the valve and seat are at right angles to line of ports, by this means the valve and casing can be turned round to the correct position, thus making it possible to work the pump either horizontally or vertically; further, the suction-valves can be placed in the opposite position to that of the delivery-valves, thus doing away with the necessity for valve-springs as fitted to all other vacuum-pumps.

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

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

No. 21430.—11th July, 1906.—OLOF KJELLSTRÖM, Manager of Skanska, Cementgjuteriet Company, Limited, Sveavagen, 107 Stockholm, Sweden. Improvements in or relating to the manufacture of concrete and like pipes.

Extract from Specification.—The most convenient method for the reinforcement by the wire-spirals consists in using the method described in New Zealand Patent No. 12793 of 1900 for the moulding of the pipe itself, and in conjunction therewith making the wire assume the shape of a continual spiral by means of the screw-movement of a guide and at the same time laying it in the pipe. The new method can thus be used advantageously in connection with the method described in the above patent-specification by making the moulding of the pipe and the inlaying the spiral keep pace with each other so that the material is always inlaid exactly at the spot where the helically advancing compression of the mortar is taking place. When the two methods are used in connection with each other, another advantage is that a very simple construction of machinery may be used, the drum serving for the pressing of the pipe, and provided with screw-projections, also serving as a guide for the wire which issues through an opening made therein, and is forced to be placed continually in the pipe layers while the latter are being pressed together. It is evident, however, that the new method may also be very well used in connection with other methods for moulding pipes—as, for instance, when the mass of concrete or the like is first shaped as a pipe, and the wire then placed from within into the tubular mass, which is finally pressed, whereby the spiral grooves produced by the inlay in the wall of the pipe will be closed at the same time.

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

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

No. 21439.—14th July, 1906.—JAMES WHYTE, of Christchurch, New Zealand, Photographer. An improved tie-frame.*

Claim.—The improved tie-frame comprised by a plate of stiff material curved longitudinally to conform to the curve of a collar, and provided at its middle with an aperture and slot adapted to pass on to the stem of a stud, and at each of its ends with a slot adapted to have the tie passed through it, substantially as specified.

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

No. 21546.—1st August, 1906.—ARTHUR CARSON, Machinist, and JOHN SHAW GREER, Methodist Minister, both of Melbourne, Victoria, Australia. Improvements in household safety-lamps.

Extract from Specification.—The modus operandi is as follows: When in ordinary use, with the light burning, the parts will be in the relative positions shown in Fig. 1—with the weight 20 resting on the table, and the rod 6, with the cylinder 5 and sleeve 7, in the down position. Should the lamp be overturned, the weight 20 will fall and operate the lever 17 to raise the cylinder 15, and so force up the rod 6, and with it the cylinder 5 and straight sleeve 7, so causing the instant extinction of the light, the parts being now in the relative positions shown in Fig. 3. By lifting the lamp from the table the same effect will be obtained, and the light extinguished if so desired; but if it is desired to move the lamp without extinguishing the light the lever-springs 21 may be pressed with the hands in the act of lifting the lamp, which will cause the pins 22 to act upon the cylinder 15 to hold the parts in the positions shown in Fig. 1. Should the lamp be dropped accidentally, the pressure being released from the spring levers 21 the parts will immediately act to extinguish the light.

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

Specification, 4s. 6d.; drawing, 1s.

No. 21629.—13th August, 1906.—R. HANNAH and Co., Limited, of Lambton Quay, Wellington, New Zealand, Boot-manufacturers (assignees of George Johnson, of Lambton Quay, Wellington aforesaid). Improvements in boots.

Claims.—(1.) In a boot, straps formed by extending the sides of the counter, a buckle secured to one of the straps, the other strap being adapted to pass over the instep and having perforations whereby it may be secured by the buckle, substantially as and for the purposes set forth. (2.) The combination and arrangement of parts comprising the improvements in boots, substantially as specified, and as illustrated in the drawing.

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