May 2.] THE NEW ZEALAND GAZETTE. 1431

carrying it on continuously; (e) means for clamping an article in the shaving-arch of the machine; (f) means for finally cooling an article; (g) means for drying the opposite faces of an article, especially of a curved stereotype, so as to fit the latter for immediate use; and (h) a shape of article specially adapted for co-operating with machines of this class.

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

(Specification, 11s.; drawing, 4s.)

No. 22569.—20th March, 1907.—LINOTYPE AND MACHINERY, LIMITED, of 188 and 189 Fleet Street, London, England, Linotype and Printing Machinery Manufacturers (assignees of Thomas Robert Gillett Parker, of the Linotype Works, Broadheath, Cheshire, England, Draughtsman). Improvements in printing-machines.

Extract from Specification.—This invention relates to improvements connected with the inking, tripping, and damping mechanisms of rotary printing-machines, the improvements connected with the inking mechanism and its tripping mechanism being applicable to any rotary machine using either a typographic printing surface or a flexible metal plate as a printing surface, while the improvements connected with the damping mechanism are applicable only to machines printing on the lithographic plan from any suitable metallic stone or other surface. In the specifications of New Zealand Patent 17845 and British Letters Patent 25866, of 1903, means are described whereby the tripping of the impression-cylinder is caused also to automatically effect the tripping of the inking-rollers coincidently therewith, the inking-rollers remaining tripped as long as the impression-cylinder remains so. This has sometimes been found very inconvenient, as it does not readily allow of the double rolling of the printing surface, which is so often required. This double rolling has heretofore been done by either tripping the machine at alternate impressions and lowering the inking-rollers by hand immediately after they have been tripped, or disconnecting the roller trip-gear from the cylinder trip-gear, which is a troublesome operation and cannot be effected while the machine is in motion. The present invention provides means for overcoming these difficulties, and it also provides, among other advantages, for the automatic stopping of the supply of water to the printing surface simultaneously with the tripping of the inking-rollers.

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

(Specification, 10s.; drawing, 5s.)

No. 22573.—20th March, 1907.—CHARLES ALEXANDER KIDD, of 173A High Street, Christchurch, Canterbury, New Zealand, Cycle-manufacturer. An improved pedal-strap for bicycles and the like.

Claim.—A pedal-strap secured upon a pedal by means of fastening-straps attached side by side to the pedal-strap, and fastening at one end by buckles attached to short straps fixed to the pedal-strap, the said fastening-straps and short straps passing around the end plates of the pedal and upon each side of the centre bar of the pedal, substantially as set forth.

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

No. 22577.—21st March, 1907.—ARTHUR ALBERT WALTERS, of 82 William Street, Melbourne, Victoria, Australia, Mechanical Engineer. Improved apparatus for automatically opening and closing lift or elevator doors.

Claims.—(1.) In apparatus for automatically opening and closing lift or elevator doors, in combination, a lift shaft and cage, vertical guideways attached to the sides of the lift-shaft, sliding-blocks supported in and free to move in said guideways, said blocks being attached to the gates, and means for operating the said sliding-blocks to enable said gates to be raised or lowered so that an open or closed doorway will be formed as the lift-cage rises or descends, substantially as and for the purposes set forth. (2.) In apparatus for automatically opening and closing lift or elevator doors, in combination, vertical guideways in which are placed sliding-blocks provided with rollers, means for imparting the required movement to said sliding-blocks to enable a gate to be raised or lowered so that a doorway will be opened or closed, consisting of trip-levers attached to the floor and roof of the lift-cage, a free rocking-lever attached to the sliding-block and provided with an arm which engages with the trip-levers on the roof and floor of the cage, wire ropes secured to the said sliding-blocks and passing over and around pulleys placed at suitable intervals in the lift-shaft, substantially as and for the purposes set forth. (3.) In apparatus for automatically opening and closing lift or elevator doors, in combination, a lift shaft and cage, the latter being provided with trip-levers attached to the roof and floor, said trip-levers as the cage rises and descends engage with and operate trip-levers provided with rollers which work on vertical skids placed at the side of the lift-shaft, means for releasing and bringing into action said trip-lever, consisting of a spring placed at the lower end of the vertical skid, and cutaway portions at top and bottom of said skids to enable the trip-lever to partly revolve, substantially as and for the purposes set forth. (4.) In apparatus for automatically opening and closing lift or elevator doors, in combination, a lift shaft and cage, and means for distributing the required amount of weight to counterbalance the parts, consisting of placing a weight in one of the vertical guideways, or constructing the sliding-blocks and connections of a weight to counterbalance the gate or other parts, substantially as and for the purposes set forth. (5.) The combination and arrangement of the several parts set forth to form a complete apparatus for automatically opening and closing lift or elevator doors, substantially as described, and illustrated on the drawings.

(Specification, 9s. 3d.; drawing, 1s.)

No. 22578.—21st March, 1907.—ALBERT EDWARD YOUNG, of Christchurch, Engineer, and EDWARD GEORGE KERR, of Timaru, Newspaper Proprietor, both of New Zealand. An improved machine for issuing checks or tickets.

Claims.—(1.) In ticket-issuing machines, a casing comprised of two portions hinged together and adapted to contain a roll of tickets, a curved extension upon one of the portions and a spring plate underlying such extension, and a curved face upon the other portion adapted to fit against the extension and to hold the end of the ticket-roll between it and the spring plate, a toothed plate slidably mounted in an arm pivoted in the casing and adapted to travel along the face of the spring plate when the arm is turned, and a spring-controlled thumb-lever adapted to turn the arm and to impart a longitudinal sliding movement to the plate in an outward direction when the lever is first depressed and in an inward direction when the lever is first released, substantially as and for the purposes specified. (2.) In machines of the class described in claim 1, a curved guide-plate secured within the casing alongside the toothed plate and formed with a notch at each end in the edge adjacent to the plate, and a lug projection on the plate extending normally across the inside face of the guide-plate, substantially as and for the purposes specified. (3.) In machines of the class described in claim 1, an extension upon the thumb-lever and a recess in the edge of the inner end of the toothed plate into which the extension fits, substantially as and for the purposes specified. (4.) The improved machine for issuing checks or tickets substantially as described and explained, and as illustrated in the drawings.

(Specification, 6s. 3d.; drawing, 2s.)

No. 22588.—19th March, 1907.—EDMUND SCOTT GUSTAVE REES, of Thomas Parker, Limited, of Wolverhampton, Stafford, England, Electrical Engineers. Improvements in rotary pumps and turbines for incompressible fluid.

Claims.—(1.) In rotary pumps or turbines for incompressible fluids having a free vortex-chamber or expanding channels in the fixed casing, or a combination of free vortex-chamber and expanding channels, an impeller or rotor constructed to form a pressure-fluid chamber or reservoir having peripheral nozzles which are constricted so as to maintain a practically constant internal pressure and to impart a velocity and direction to the issuing jets, which may be made to bear any desired relation, within wide limits, to the tangential velocity acquired by the mass of the liquid. (2.) A self-regulating rotary pump for incompressible fluids comprising an impeller having a large central chamber in which a considerable body of fluid is maintained by rotation at a substantially constant pressure, and rearwardly directed nozzles adapted to convert the pressure into velocity on the passage of the fluid from the reservoir to the expanding ducts or chambers of the fixed casing, substantially as described. (3.) A constructional form of apparatus according to claim 1, in which the discharge-nozzles are formed in or by a separate ring, which is screwed on or otherwise secured around the periphery of the fluid-pressure reservoir which constitutes the body of the impeller or rotor, substantially as described. (4.) A constructional form of apparatus according to claim 1,

B