Nov. 13.] THE NEW ZEALAND GAZETTE. 2509

and having interlocking mechanism between the controller-drum and reversing-switch for reversing the connections of the field magnets and armatures of the motors, in which when the controller is in the last of its braking positions the said interlocking mechanism becomes inoperative, so that the connections of the field magnets and armatures of the motors may be altered as desired by a manipulation of the reversing-switch. (8.) Braking-apparatus constructed and operating substantially as described with reference to any of the forms shown on the drawings.
(Specification, £1; drawings, 4s.)

No. 15581.—31st October, 1902.—HENRY BLAND, of Ashley Street, Waverley, near Sydney, New South Wales, Engineer. Improvements in apparatus for elastic-fluid compression.

Claims.—(1.) In apparatus for elastic-fluid compression, the combination with two sets of toggle levers coupled together of a free or floating beam receiving motion therefrom and transmitting it to the compressing-pistons, substantially as described and explained. (2.) In apparatus for elastic-fluid compression, the combination with a free beam operated by two sets of toggles coupled together of balanced supports for the beam free to rise and fall in framing to suit the varying plane of lever joints, substantially as described and explained. (3.) In apparatus for elastic-fluid compression, the combination with a free beam and its yielding supports of two sets of toggle levers whose power can be utilised up to their exhaustion, substantially as described and explained. (4.) In apparatus for elastic-fluid compression, the combination with a free beam and its yielding supports of toggles operating the same by an overstep movement towards the vertical centre to complete the compression stroke, substantially as described and explained. (5.) In apparatus for elastic-fluid compression, the combination with an oscillating free beam of two sets of toggle levers coupled together and working as followers, the upper lever of each set being pivoted to the said beam, the lower levers taking their thrust from the foundation, substantially as described and explained.
(Specification, 6s. 6d.; drawings, 6s.)

No. 15582.—31st October, 1902.—FRITZ THEODORE HEINRICH MATTHIAS JOHANNES MARCARD, of Leigh Street, Adelaide, South Australia, Merchant. An improved reciprocatory motor.

Claims.—(1.) In a reciprocatory motor, the combination with a piston working within a cylinder, and having two piston-heads with an annular recess between, of a sliding annular ring mounted within the said recess and in conjunction with suitable ports adapted to direct the compressed gas alternately to each end of the said cylinder. (2.) In a reciprocatory motor, the combination with a piston working within a cylinder having an inlet-channel arranged upon one side, said piston having two piston-heads with an annular recess between, and two ports, one extending from the front portion of the said recess to the rear end of the piston and the other from the rear portion of the recess to the front end of the piston, of a sliding annular ring mounted within the said recess and working in conjunction with the said ports and the said inlet-channel so that the compressed gas is delivered alternately to the ends of the cylinders, substantially as described. (3.) In a reciprocatory motor, the combination with a piston working within a cylinder having an inlet-channel arranged upon one side, said piston having two piston-heads with an annular recess between, and two ports, one extending from the front portion of the said recess to the rear end of the piston and the other from the rear portion of the recess to the front end of the piston, said piston having a further discharge-port extending from the centre of the said annular recess, of a sliding annular ring mounted within such recess and having an internal recess, such ring working in conjunction with the said ports and the said inlet-channel so that the compressed gas is delivered alternately to the ends of the cylinders, substantially as described. (4.) In a reciprocatory motor, the combination with a piston mounted on a piston-rod and working within a cylinder provided with an inlet-channel arranged upon one side and with an exterdng sleeve at one end through which the piston-rod passes, such sleeve having a discharge-orifice, said piston having two piston-heads with an annular recess between, and two ports, one extending from the front portion of the said recess to the rear end of the piston and the other from the rear portion of the recess to the front end of the piston, and a further discharge-port passing along the middle of the piston-rod and communicating with the sleeve upon the cylinder at one end and with the annular recess in the piston at the other, of a sliding annular ring mounted within such recess and having an internal recess, such ring working in conjunction with the said ports and the said inlet-channel so that the compressed gas is alternately delivered to and discharged from the ends of the cylinders, substantially as described. (5.) An improved reciprocatory motor, consisting of a cylinder attached to a handle through the centre of which the inlet-channel is drilled, having at one end a sleeve to which a discharge orifice is attached, a piston-rod passing there through, a piston mounted on the said piston-rod having two piston-heads with an annular recess between, a sliding annular ring having an internal recess working within the said recess on the piston, ports within the piston leading from the front end of the said recess to the rear end of the piston and from the rear end of the said recess to the front end of the piston, a discharge-port arranged within the centre of the piston-rod communicating at one end with the internal recess in the said sliding annular ring and at the other with the interior of the sleeve upon the cylinder, to which the discharge-orifice is attached, substantially as described.
(Specification, 6s.; drawings, 1s.)

No. 15583.—31st October, 1902.—WILLIAM MAYNE, of Karadoc Avenue, Mildura, Victoria, Engineer. An improved engine-valve gear by which the points of admission, cut-off, and release of high-pressure steam or other motive fluid may be controlled.

Claims.—(1.) In an improved engine-valve gear, the rotary disc valve d provided with porthole e and exhaust-recess f working on circular exhaust-groove g, substantially as and for the purposes set forth. (2.) In an improved engine-valve gear, the conical chamber h³ in union with the outer hollow plug valve h, with portion of its upper section cut away and fitted with a worm wheel h¹, substantially as and for the purposes set forth. (3.) In an improved engine-valve gear, the inner solid plug valve j, provided with two wings or feathers, and fitted with worm wheel j¹, substantially as and for the purposes set forth. (4.) In an improved engine-valve gear, the general arrangement of the several parts set forth in Figs. 1 to 7 on the sheets of drawings 1 and 2, substantially as and for the purposes set forth.
(Specification, 2s. 3d.; drawings, 2s.)

No. 15591.—30th October, 1902.—HENRY MAYR, of Pitt Street, Auckland, New Zealand, Carpenter and Joiner. An improved safety sash.

Claim.—The combination of sashes, frames, and architraves as one device, supported by a tension-rod at top and an inserted fillet as a weather-guard at bottom, rendering the whole sash arrangement capable of being opened as a door on hinges, as substantially set forth.
(Specification, 2s.; drawings, 1s.)

No. 15592.—30th October, 1902.—WILLIAM JAMES DALTON, of 266, Queen Street, Auckland, New Zealand, Civil Engineer. A telescopic tap.

Claim.—The combination of a tube within a tube telescopicwise, the inner tube having cutters, one or more which when pressed will perforate the outer tube, and thus permit the contents of any vessel to pass through holes in the inner tube, in such a manner as to permit the contents to flow out or be shut off by drawing out or turning the inner tube half round or by a screw-like action by stud controlled by guides. The closing of the inner tube will seal all the vents by the jacket between the outer and inner tube. The same principle of telescopic tap will be applicable to all purposes for which taps, vents, or corks are used. As substantially set forth.
(Specification, 2s. 3d.; drawings, 1s.)

No. 15594.—4th November, 1902.—NEILS JEPSEN, Inventor; JANS SOFUS JEPSEN, Dairyman; JAMES FREDERICK JEPSEN, Dairyman; MARTIN JEPSEN, Dairyman; and JAMES BOMFORD, Dairyman, all of Wellington, New Zealand. Improved means for attaching broom-handles to brooms, and for other analogous purposes.

Claims.—(1.) In means for attaching broom-handles to brooms, a base plate adapted to be secured upon the broom-head, and a socket-piece rising from such base plate adapted to receive the end of the broom-handle, such socket-piece being formed of springy metal and with a slit running longitudinally therethrough, lugs upon each side of the slit, and a bolt or set screw passing through the lugs, as specified. (2.) The general arrangement, construction, and combination of parts in our improved means for attaching handles to brooms, and for other analogous purposes, as described and explained, as illustrated in the sheet of drawings, and for the several purposes set forth.
(Specification, 2s. 3d.; drawings, 1s.)