1432
THE NEW ZEALAND GAZETTE.
[No. 41

in which provision is made for varying the extent of the construction of the discharge-nozzles, substantially as described. (5.) In combination with the apparatus according to claim 1, a vortex duct or eye adapted to lead the fluid into the fluid-pressure reservoir without shock, substantially as described. (6.) In combination with the apparatus according to claim 1, a fixed nozzle or nozzles co-operating with a vortex duct or ducts forming part of the rotor, to direct the entering fluid radially inwards, substantially as described. (7.) In combination with a plurality of rotors according to claim 1, each having a vortex eye or inlet, a casing having fixed injection-nozzles and cut-waters or discharge-ducts, substantially as described. (8.) In combination with a plurality of rotors according to claim 1, each having a vortex eye or inlet, a casing having guide-blades co-operating with the said vortex-eyes and cut-waters or discharge-ducts co-operating with the discharge-nozzles of the rotors, substantially as described. (9.) A multi-stage pump or turbine having a single rotor according to claim 1, and a casing subdivided into compartments each co-operating with a separate portion of a series of fixed guide-ducts whereby the fluid is passed repeatedly through the rotor before being finally discharged, substantially as described. (10.) A multi-stage pump or turbine having a single rotor according to claim 1, and a casing subdivided into compartments each co-operating with a separate portion of a series of fixed injection-nozzles, whereby the fluid is passed repeatedly through the rotor before being finally discharged, substantially as described. (11.) A multiple pump consisting of a set of separate impellers or series of impellers mounted on the same shaft and having separate discharge-nozzles, and means for changing one or more of the discharge-nozzles or varying the sectional area thereof, substantially as described. (12.) In combination with a rotary pump of the character described and claimed, a multiple-jet nozzle, each jet of which is supplied by a branch from the common delivery-pipe of the pump, and means for varying the cross-section of one or more of the branches, substantially as described. (13.) A multi-stage rotary pump consisting of an impeller of the kind described and claimed, and a plurality of non-restricted impellers connected in series and in front of the said impeller and mounted on the same shaft therewith, substantially as described. (14.) In a rotary pump or turbine of the character described, a device for annulling or reducing leakage of pressure fluid which consists in forming spiral grooves on either or both of the opposing surfaces of the rotor and casing, at the inlet or the outlet of the rotor, or both at the inlet and the outlet thereof, the spires of the two sets of grooves, when both opposing surfaces are so grooved, being arranged in opposite senses, substantially as described. (15.) A rotary pump or turbine for incompressible fluids comprising a rotary pressure-fluid reservoir, means for converting the pressure of the said pressure-fluid into velocity, and means for reconvert ing the velocity into pressure, substantially as described and illustrated.

(Specification, 15s. 6d.; drawing, 5s.)

No. 22589.—20th March, 1907.—BERNHARD ADOLF OTTO PROLLIUS, of Torvegade 50, Copenhagen, Denmark, Engineer. Improvements in or relating to distance-pieces for the insertion-plates of centrifugal machines.

Claim.—A process for securing distance-pieces to insertion-plates for centrifugal machines, characterized by the insertion-plate being stamped out to form bent-out lugs, which are pressed against the edge of the distance-piece so that the latter is positioned entirely on the inner, or entirely on the outer, surface of the insertion-plate.

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

No. 22599.—26th March, 1907.—HUBERT ALFRED ADAMS, of Linton, Victoria, Australia, Newspaper Proprietor. Improvements in document-files and assembling-means.

Claims.—(1.) A file (for sheets of material) having two receiving-means or spikes, a fork, upper and lower members adapted to be pressed together by the user, a clamp, spring means to actuate the clamp, means to prevent distortion of the file, and means to prevent damage by spikes, all substantially as described. (2.) A single piece of wire the several parts of which form two spikes, supports for sheets of material, a fork, upper arms, springs, a tongue, and a clamp usable as a punch, all substantially as described. (3.) A file or assembling-means having substantially the respective parts described, illustrated in Fig. 1. (4.) A file or assembling-means having substantially the respective parts described, illustrated in Fig. 3. (5.) In a file or assembling-means, the respective parts shown in Fig. 6, substantially as described. (6.) In a file or assembling-means, the respective parts shown in Fig. 5, substantially as described. (7.) In a file or assembling-means, the respective parts shown in Fig. 4, substantially as described.

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

An asterisk (*) denotes the complete specification of an invention for which a provisional specification has been already lodged.

NOTE.—The cost of copying the specification and drawing has been inserted after the notice of each application. An order for a copy or copies should be accompanied by a post-office order or postal note for the cost of copying.

The date of acceptance of each application is given after the number.

Extracts from the drawings accompanying the foregoing complete specifications appear at the end of this Gazette.

J. C. LEWIS,
Registrar.

Provisional Specifications accepted.

Patent Office,
Wellington, 1st May, 1907.

APPLICATIONS for Letters Patent, with provisional specifications, have been accepted as under:—

No. 22104.—L. O. Hooker, perch-carrier.

No. 22265.—A. Le Blanc, rabbit-destroyer.

No. 22410.—A. Gray and D. G. Thornton, pocket of wearing-apparel.

No. 22460.—G. E. Bretherton, plough.

No. 22492.—A. E. Moss, electric shop-alarm mat.

No. 22547.—A. Todd, seed-sower.

No. 22550.—T. Stewart, means for cleaning ships’ hulls.

No. 22556.—W. C. Page and R. V. Anderson, concrete structure.

No. 22557.—C. Jansen, method of draining clothes in washing. (E. J. Hall.)

No. 22558.—F. H. Lampen, signalling-flag.

No. 22559.—J. Murdoch, toilet-cabinet.

No. 22560.—H. W. Gilling, milking-machine.

No. 22561.—H. Mackay, bicycle chain-guard.

No. 22563.—D. W. McLean, tire.

No. 22574.—B. G. C. Stephens and B. G. Mahoney, tire.

No. 22575.—M. G. Wilson, collapsible box.

No. 22581.—A. Storrie, milking-can.

No. 22590.—K. Gillingham, oven of cooking-range.

No. 22593.—T. R. Christie, skylight.

No. 22609.—A. G. Andin, milking-machine.

No. 22616.—W. Alexander, moisture, &c., tester.

No. 22619.—J. Sharpe, bottle to contain liquid under pressure.

No. 22621.—R. R. Douglas, machinery-roller.

No. 22622.—H. Wilkenning, fastening for belts, conveyors, &c.

No. 22635.—S. E. Bell, fuel-economizer, &c.

No. 22639.—E. G. McDougall, machine for dividing and wrapping blocks of butter.

No. 22643.—H. H. Kerr, apparatus for supplying air round teat-cups.

No. 22644.—F. J. McDonald, press for compressing material into bales.

No. 22645.—A. E. Usherwood and W. H. Hanlon, valve gear for engine.

No. 22646.—F. C. Thompson, bracket attachment for blinds.

No. 22653.—B. W. Benn, milking apparatus.

No. 22654.—B. W. Benn, milking-machine.

No. 22655.—J. B. Davies and H. Bell, nail-manufacture.

No. 22661.—United Shoe Machinery Company, wire for metallic fasteners. (F. H. Perry.)

No. 22662.—G. T. Booth, flax-stripper attachment.

No. 22663.—United Shoe Machinery Company, pulling-over machine. (R. F. McFeely.)

No. 22689.—F. C. Brown, lining tube-mills, &c.

No. 22692.—R. R. Douglas, protector for links of running machinery.

No. 22695.—F. W. Smith, teat-cup.

No. 22696.—F. Bottrill, vehicle-wheel.

No. 22723.—P. J. Shanks and W. Scott, cycle-brake.

NOTE.—Provisional specifications cannot be inspected, or their contents made known by this office in any way, until the complete specifications in connection therewith have been accepted.