APRIL 30.] THE NEW ZEALAND GAZETTE. 1291

forms part of my improvements, and is arranged within the lid or cover of the milk-cistern, and by means of said releaser the teat-cups will drop from the cow immediately they are sufficiently milked.

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

(Specification, 12s. 6d. ; drawing, 4s.)

No. 23955.—25th January, 1908.—THOMAS REID CHRISTIE, of Dunedin, New Zealand, Plumber. Improved induct-vent for drainage purposes.

Claims.—(1.) An induct-vent having its lower portion projecting and sloping forward, whereby the portion above the ground-level may be set back into the wall, said lower portion being connected to the drain-pipe, substantially as described. (2.) The complete induct-vent substantially as described or illustrated in the drawings.

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

No. 24104.—6th March, 1908.—JAMES BENNETT, of Oamaru, New Zealand, Carpenter. An appliance for use in operating screwdrivers.

Claims.—(1.) An appliance for the purpose indicated, consisting of a collar adapted to fit and be secured upon the shank of the screwdriver, and formed with ratchet teeth upon its periphery, and a cylindrical casing loosely surrounding the collar and enveloping the ratchet teeth, provided with a pivoted spring pawl engaging with such teeth, and with a handle for rotating the casing, substantially as specified. (2.) The general arrangement, construction, and combination of parts in my appliance for use in operating screwdrivers, substantially as described and explained, as illustrated in the drawings, and for the several purposes set forth.

(Specification, 2s. 6d. ; drawing, 1s.)

No. 24118.—27th March, 1907.—EDITH ELIZABETH CLOVER, of “The Chestnuts,” Halstead, Essex, England. Improvements in hand washers or apparatus for facilitating the cleansing of articles.

[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.) A hand washer, single or doubled handled, and with or without a stretcher cover, having a longitudinally or transversely corrugated or grooved and perforated operating surface 1-1, adapted to cleanse the clothes or articles being washed without necessarily lifting them out of the liquid. (2.) A hand washer or implement having longitudinally or transversely arranged grooves or corrugations upon the underside or operative face thereof, for use in washing clothes or other articles, constructed as and for the purpose set forth, and illustrated by the drawings.

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

No. 24119.—11th March, 1908.—ERNST FREDRIK WERNER ALEXANDERSON, of Schenectady, New York, United States of America. Improvements in alternating-current motors.

Claims.—(1.) The method of operating an alternating-current motor of the commutator type which consists in starting it as a repulsion motor with the armature directly short-circuited, including an inductive winding in the armature short-circuit for low speeds, and including a shunt-voltage in the short-circuit for high speeds. (2.) The method of operating an alternating-current motor of the commutator type which consists in starting it as a repulsion motor with the armature directly short-circuited, and including an inductive winding in the armature circuit when the motor has started. (3.) The method of operating an alternating-current motor of the commutator type, having inducing and exciting windings on the stator, which consists in connecting the stator-windings in series with each other and with the armature, and directly short-circuiting the armature at starting, including the exciting winding in the armature short-circuit for low speeds, and modifying the armature-connections to produce an increased voltage at the armature-terminals for high speeds. (4.) The method of operating an alternating-current motor of the commutator type, having inducing and exciting windings on the stator, which consists in con-

necting the stator-windings in series across a source of alternating current, short-circuiting the armature directly at starting, and including the exciting winding in the short-circuit when the motor has started.

(Here follow fifty other claims.)

(Specification, £1 10s. ; drawing, 3s.)

No. 24121.—11th March, 1908.—RICHARD JOHN FRY, of 111 Princes Street, Carlton, near Melbourne, Victoria, Australia, Mechanic. An improved machine for making and preparing blanks in the construction of horse-shoes.

Extract from Specification.—In operation the gauge 16 is adapted to take the necessary length of metal to form a shoe, and the heated metal is fed into the holder 13. The hand-lever 24 is then moved to release the trip 25 from the clutch 26, causing the crank-shaft 5 to turn one revolution and thereby impart the closing and return movement to the upper jaw 2 which performs the cutting and fullering operation by means of the attached tool or die 7 and knife 11. Simultaneously with the cutting and fullering operation the gripping-plate 18 is pushed forwardly by the depression of the rear end of the connecting-plate 23 and presses firmly against the heel end and sides of the metal to be prepared. Immediately this operation has been performed, the jaw 2 and the gripping-plate 18 are automatically returned to their normal positions, when the prepared blank fullered and cut into the required size preparatory to being bent to form a shoe is removed, when the operation may be repeated.

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

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

No. 24126.—12th March, 1908.—DOMENICO MARZI, of 99 Via Germanico, Rome, Italy, Electrician. Improvements in loud-speaking telephone-apparatus

Claims.—(1.) A telephonic apparatus comprising a vibrating-diaphragm of suitable material, an oscillating-rod one end of which is connected to said diaphragm while the other end moves in a magnetic field, the pivot about which said rod oscillates, being between the two ends of the rod at such distances that in the receivers the shorter arm of the lever thus formed is the arm ending between the poles of the field-magnet, while in the transmitters this arm is a longer one, thus providing in each case a positive and amplified transmission of the movement. (2.) A telephonic receiver in which the magnet is a rod of soft iron surrounded by a coil in the windings of which the line-current circulates, and the ends of which are arranged between four polar extensions of a magnet, so that on the passing of the current in the coil the rod constantly oscillates in both directions and transmits its oscillation to the vibrating-plate or diaphragm. (3.) A telephonic transmitter in which the vibrating-diaphragm transmits its strengthened vibrations to the oscillating-magnet by means of an auxiliary rod, and a flux circulating in one direction or the other is produced in the oscillating-magnet according to the different polarity in one or the other direction, so that in the windings of the coil, which is passed over the magnet, currents are produced in one direction or the other which are sent into the line and received by the receiver. (4.) A telephonic receiver comprising an electro-magnet, a stirrup mounted on said electro-magnet, two cores fitted on the stirrup which take both the same polarity of the stirrup, windings of the line-wire around the legs of the electro-magnet forming the primary circuit of an induction-coil, the secondary circuit of which comprises also windings around the cores fitted on the stirrup of the electro-magnet, which windings are arranged in such a manner as to strengthen the magnetism of one of the cores while the magnetism of the other is weakened, a rod oscillating between said cores, and means whereby the oscillations of the rod are transmitted magnified to the vibrating-diaphragm which produces the sounds. (5.) A telephonic relay or reinforcing microtelephone, comprising a microphone, a loud-speaking receiver of the type described, the oscillating-rod of which acts on the vibrating-diaphragm of the microphone, a circuit including the transmitter at the beginning of the line and supplying the exciting-current to the loud-speaking receiver of the relay, and a circuit including the microphone of the relay and supplying the exciting-current to a receiver of any type at the other end of the line. (6.) A telephonic relay or microtelephone, comprising a loud-speaking receiver of the type described, a block of carbon fitted at one end of the oscillating-rod and moving between two carton plates of a compensated microphone with two primary coils, a circuit including