394
THE NEW ZEALAND GAZETTE.
[No. 19

the drawings. (5.) A system for controlling the operation of
a plurality of air-pumps in accordance with the air-pressure,
as described with reference to Fig. 2 of the drawings.
(Specification, 8s.; drawings, 1s.)

No. 13344.—22nd January, 1901.—JAMES SHENNAN KIRKPATRICK, of Dunedin, New Zealand, Stationmaster. An improved electro interlocking block starting-semaphore.

Claims.—(1.) In block signalling, the combination of the adjustable trigger device C⁵, C⁷, with the double-control or double-locking devices C⁷ and F, F¹, and the electric locking or controlling devices H, H⁸, I, L¹, M⁵, and J, substantially as shown and described and for the purposes as set forth. (2.) In railway block signalling, the combination of self-acting lever and pawl with the pulling-lever as shown in Fig. 5, whereby the pawl maintains either position up or down when placed in such position by hand, but returns to its work when it is required for use, substantially as set forth. (3.) In combination, the arm C, with its adjustable trigger and the main lever D, and their double-locking lever devices, with the electric-control apparatus consisting of the main lever I and notch H, with their controlling or double-locking devices, all substantially as shown and described, and as illustrated in the drawing.
(Specification, 3s.; drawings, 1s.)

No. 13348.—29th January, 1901.—JAMES PALMER CAMPBELL, of Wellington, New Zealand, Registered Patent Agent (nominee of Benjamin Garver Lamme, of 230, Stratford Avenue, Pittsburg, Pennsylvania, United States of America, Electrical Engineer). Improvements in dynamo-electric generators.

Claims.—(1.) For an alternating-current generator, an armature having a plurality of closed-coil windings symmetrically disposed on the core, corresponding points in the several windings being connected in parallel at the terminals, substantially as described. (2.) For a two-phase generator, an armature constructed as described with reference to the drawing.
(Specification, 2s. 3d.; drawings, 1s.)

No. 13349.—29th January, 1901.—JAMES PALMER CAMPBELL, of Wellington, New Zealand, Registered Patent Agent (nominee of Cyrus Robinson, of Swissvale Avenue, Edgewood Park, Pennsylvania, United States of America, Engineer). Improvements in oil-pumping apparatus.

Claims.—(1.) In a lubricating-pump for steam-engines, means located in the pipe or passage leading from the oil-reservoir to the parts requiring lubrication for affording a visible indication of the flow of oil, substantially as described. (2.) A lubricating-pump having an adjustable connection between the pump-piston and its operating-means, so that the length of the piston-stroke may be varied, for the purpose specified. (3.) A lubricating-pump having means for providing more or less lost motion between its piston and the operating-mechanism therefor, for the purpose specified. (4.) For steam-engines, a lubricating-pump constructed and operating substantially as described with reference to the drawings.
(Specification, 4s. 3d.; drawings, 1s.)

No. 13350.—29th January, 1901.—GEORGE GREGORY SMITH, of Villa Bel Riposo, San Domenico, Florence, Italy, Lawyer. Acetylene-gas generator.

Claims.—(1.) In an acetylene-gas generator having a gasometer and bell, and in connection with which sealed tins of carbide are employed, the combination of a generator-chamber, a water-receptacle controlled by a valve and adapted to empty into said generator-chamber, a punching-device operative within said chamber, and means controlled by the body of the bell for operating said punching-device to punch a tin of carbide within the chamber, and for simultaneously opening the water-control valve, and means for carrying off the gas generated to the gasometer-bell, substantially as described. (2.) In a generator of the class covered by claim 1, the combination of a top reciprocatory punch within the generator and a bottom stationary punch on which the tin is supported by a spring, a shaft having means in connection therewith to depress and raise said movable punch, and means controlled by the bell for releasing said shaft and causing the same to rotate when it is necessary to refill the bell, in the manner and for the purpose substantially as described. (3.) In a generator of the class specified, the combination of a reciprocatory top punch within the generator, a stationary lower punch, and a spring to support the can above the latter, a disc on the top punch to depress the can on to the bottom punch when the said top punch is reciprocated downwards, and means controlled by the body of the bell for releasing a mechanism for reciprocating the said punch, in the manner and for the purpose substantially as described. (4.) In a generator of the class specified, the combination of a top and bottom punch within the generating-chamber, and means controlled by the body of the gasometer-bell to cause the said punches to punch the top and bottom of a carbide-tin supported between them, in the manner and for the purpose substantially as described. (5.) In a generator of the class covered by claim 1, the combination of a combined depurator and back-pressure valve, having a liquid vaseline filling into which the gaspipes from the generators dip, and means for passing the gas once or several times through the said vaseline filling advantageously in finely divided streams or currents, substantially as described. (6.) In a combined depurator and back-pressure valve as covered by claim 5, the combination of an enlargement in the pipes arranged to conduct off the gas from the vaseline, said enlargement being advantageously of a double conical form, and being situated suitable distance from the end of the pipe, in the manner and for the purpose substantially as described. (7.) In a depurator of the class covered by claim 5, the combination of a fixed siphon-pipe to dip into the water collecting below the vaseline, and a movable siphon-pipe therein adjustable as to height from the exterior of the depurator, substantially as described. (8.) In a generator of the class specified, the combination of a carbide-tin having therein a perforated tube with its longitudinal seam open, so as to render it collapsible in the manner and for the purpose substantially as described. (9.) In a carbide can or tin of the class covered by claim 8, the combination of a full tube arranged within the collapsible tube, said full tube being fixed to the bottom of the tin and extending up within the same to a point below the interior surface of the cover of the tin, substantially as described. (10.) In a generator of the class specified, the combination of a falling weight to operate the puncturing-mechanism for the carbide-tin; said weight being held up by a substantially swinging retaining lever, which has its free end supported by the gasometer-bell, and is consequently not free to swing and release the weight until the bell has fallen far enough to allow its free end to swing over the bell, substantially as described. (11.) In a generator of the class specified, the arrangement of the weight-releasing lever or levers for one or a set of generators at different heights, in the manner and for the purpose substantially as described.
(Specification, 8s. 6d.; drawings, 4s.)

F. WALDEGRAVE,
Registrar.

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

NOTE.—The cost of transcribing the specification, and an estimate of the amount required for copying the drawings, have 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.

Provisional Specifications.

Patent Office,
Wellington, 6th February, 1901.

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

No. 13232.—10th December, 1900.—WILLIAM HAGERTY and JOHN HAGERTY, of Winton, Southland, New Zealand, Mechanical Engineers; HANS PETER RASMUSSEN, of Winton aforesaid, Clerk of Court; and ARTHUR CHILLAS HENDERSON, of Invercargill, New Zealand, Solicitor. An improved wheel.

No. 13304.—7th January, 1901.—JAMES HAIR, of Tyne Street, Oamaru, New Zealand, Blacksmith. An improvement in envelopes.