Feb. 7.] THE NEW ZEALAND GAZETTE. 393

device to effect the motion of the moving parts. (4.) A mechanical stoker, comprising a rotating fuel-throwing horizontal device having a grooved rope pulley, and a spring-actuated pressure pulley adapted to bear upon a rope travelling in contact with the grooved rope pulley, and means adapted to engage with said pressure device to hold it out of working contact, and a deflecting-plate in the path of the material thrown adapted to distribute the material.
(Specification, 4s. 3d.; drawings, 2s.)

No. 13328.—19th January, 1901.—WILLIAM BURGELAND JOHNSON, of 4, Clayton Square, Liverpool, England, Engineer. Improvements in ventilators.

Claims.—(1.) In a ventilator, the combination with vanes disposed near one end of an opening through a wall of a vane suspended on arms pivoted to the sides of the opening so that such armed vane can be moved into a position flush or level with the edges of the opening to close such opening, and a vertical top piece or plate arranged to be flush or level with the movable armed vane when in closed position, one or more of the first-mentioned vanes being cut away or mounted on brackets to allow free motion of the armed vane, substantially as and for the purposes set forth. (2.) In a ventilator, the combination of several independently pivoted vanes near one end of an opening through a wall, one of the vanes being connected to pivots at a distance from its plane by arms, and one or more of the other vanes being cut away or supported on brackets to allow free motion of the armed vane, and a vertical stop-plate for the lower edge of the armed vane, substantially as and for the purposes set forth.
(Specification, 3s. 6d.; drawings, 1s.)

No. 13333.—28th January, 1901.—FRANK LESLIE WEBSTER, of Vancouver, British Columbia, Canada, Carpenter. Improvements in gates and doors.

Claims.—(1.) The combination with a slidable door or gate and its supporting frame of a trackway or rail having two apexes—one over the centre of the opening the door or gate is designed to close, and the other over the centre of the position the door or gate occupies when it is open—the upper contour of the rail falling from such apexes in lessening concave curves until merged in a slight uniform falling grade toward the two extremes and the centre of its entire length; overhung sheaves attached to each upper corner of the door or gate, and adapted to run on the rail, and means whereby such door may be moved until the sheaves pass over the apexes of the rail, all substantially as described. (2.) The combination with a slidable door or gate and its supporting frame of a rail along the top frame, the upper lineal contour of which is made up of four concave curves falling to the centre and to the two ends from two apexes—one over the centre of the roadway and one over the centre of the position of the door or gate when open—such curves to be comparatively sharp adjacent to the apexes, and flattening toward the ends until they end in slight falling grades at the centre and each end; overhung sheaves at each upper corner of the door or gate adapted to run on such overhead rail; a flexible cord or line attached to the outer upper corner of the door or gate; grooved sheaves fixed edge to edge on the upper frame of the doorway at its centre, between which the cord or line passes; and means whereby the cord may be actuated to draw the door or gate up to the centre, and the rolling-sheaves on which it runs over the apexes of the rail, all substantially as described. (3.) In combination with a slidable gate and its supporting frame, an overhead rail of special contour attached to the support-frame; a sheave at each upper corner of the gate adapted to run on the rail; double guide-sheaves fixed to the support-frame at the centre of the roadway; a bracket fixed to the support-frame over the centre of the roadway; levers projecting over the roadway at opposite sides of the gate at right angles to its plane, and fulcrumed to such bracket; a flexible connection attached to the inner ends of the levers, and passing through between the guide-sheaves, suitably connected to the upper part of the outer style of the gate, all substantially as specified.
(Specification, 5s. 6d.; drawings, 1s.)

No. 13340.—28th January, 1901.—EDWARD WATERS, a member of the firm of Edward Waters and Son, of 131, William Street, Melbourne, Victoria, Patent Agent (nominee of Phenix Investment Company, a corporation organized under the laws of the State of Delaware, and doing business at 1, Nassau Street, Manhattan, New York, United States of America, assignees of Thomas Asencio, of 44, Broad Street, New York aforesaid). Improvements in attachments for feeding fuel in a pulverised or powdered state to steam-boiler and other furnaces.

Claim.—An attachment for steam-boiler and other furnaces, comprising a rotary motor, and a rotary pulveriser and blower arranged to be actuated by the motor, the said motor, pulveriser, and blower having a common shaft, and being so corelated in capacity and operation that an attachment of a given capacity will furnish the necessary and uniform amount of fuel-elements required for any particular furnace.
(Specification, 3s.; drawing, 1s.)

No. 13341.—28th January, 1901.—WILLIAM ERNEST HUGHES, of Queen’s Chambers, Wellington, New Zealand, Patent Agent (nominee of Frank Clarence Newell, of 432, Ross Avenue, Wilkinsburg, Pennsylvania, United States of America, Electrical Engineer). Improvements in electric brake-mechanism.

Claims.—(1.) An electric brake-mechanism having a magnetic rail-shoe, and wheel-shoes applied by longitudinal movement of the rail-shoe relatively to the car, part of the connection between the rail-shoe and wheel-shoes being formed of non-magnetic material for the purpose specified. (2.) In an electric brake-mechanism, a magnetic rail-shoe suspended directly by a yielding connection such as a tension spring, and adapted to move freely in a direction transverse to the track, substantially as described. (3.) In a brake-mechanism of the kind described, the extensible or telescopic thrust-rod connection between the rail-shoe and wheel-shoe, substantially as described. (4.) In a car-brake apparatus a direct connection between the levers operating the brake-shoes, so that when the lever of either brake-shoe is operated pressure is transmitted directly from said lever to the other brake-shoe, substantially as described. (5.) An electric brake-mechanism, constructed and operating substantially as described, and shown in the drawings.
(Specification, 4s.; drawings, 1s.)

No. 13342.—28th January, 1901.—WILLIAM ERNEST HUGHES, of Queen’s Chambers, Wellington, New Zealand, Patent Agent (nominee of Frank Clarence Newell, of 432, Ross Avenue, Wilkinsburg, Allegheny, Pennsylvania, United States of America, Engineer). Improvements in electric brakes.

Claims.—(1.) In an electrically propelled car, a braking-switch adapted to connect the motor or motors to act as generators in a local braking-circuit so as to apply the brakes whatever the position of the motor-controller may be, substantially as described. (2.) In an electrically propelled car, a braking-switch adapted to connect the motor or motors to act as generators in a local braking-circuit, and a motor-controller which is so arranged as to control the current in the braking-circuits by the same movements as those by which it controls the current received by the motors from the line, substantially as described. (3.) In an electric-brake system for railway-cars, a braking-switch adapted to be operated from either end of the car, substantially as described. (4.) An electrically propelled car having a controller at each end thereof for controlling the propelling-motors, and a single braking-switch adapted to cut off the supply of current from either controller and connect the said controller with the braking-circuit, substantially as described. (5.) For electrically propelled cars, electric-brake systems, arranged and operating substantially as described, and shown in the drawings.
(Specification, 15s.; drawings, 3s.)

No. 13343.—28th January, 1901.—ERNEST ROWLAND HILL, of 814, Maple Avenue, Wilkinsburg, Pennsylvania, United States of America, Electrical Engineer. Improvements in controlling-mechanism especially applicable for use with pumps.

Claims.—(1.) For making and breaking an electric circuit, a pneumatically operated electric switch, the operation of which is controlled by electro-magnetic means, governed by another switch which is operated in accordance with the degree of air-pressure in an air-reservoir, substantially as described. (2.) An electro-pneumatic system, in which a number of electrically driven pumps and corresponding interconnected air-reservoirs are provided, each pump-motor having a switching-device so arranged that the operation of any switch in one direction will cause all the pumps to start working, and that the stoppage of the pumps will not occur until the last one of the switches has been operated in the opposite direction, substantially as and for the purpose specified. (3.) A pneumatically operated switch, in which lost motion occurs between the movable member of the switch and the operating piston, so that the switch is not operated until the piston has nearly completed its stroke in either direction, substantially as described. (4.) For making and breaking an electric circuit, a switching-device constructed and operating as described, and shown in Fig. 1 of