2308
THE NEW ZEALAND GAZETTE.
[No. 85

the production of high vacua. (2.) Employing vacuum intensifiers in series to effect cooling by evaporation for the purpose of obtaining efficient refrigeration or cooling for cold storage or other purposes from steam-power. (3.) The combination of two or more vacuum intensifiers in series with coolers, the circulating medium in one or more of the coolers of most reduced vapour density being artificially cooled. (4.) Employing vacuum intensifiers in series for cooling the circulating fluid of one or more coolers or the like. (5.) In high vacua cooling or condensing plant, cooling the circulating fluid in an evaporator in which a very low vapour-density is obtained by a vacuum intensifier working in series with a condenser, substantially as described. (6.) In high vacua cooling or condensing plant, providing a vacuum intensifier to draw directly from the evaporative or other chamber to be evacuated and discharged into a condenser from which vapour and non-condensible fluid are drawn off by a second vacuum intensifier and a vacuum pump, substantially as described. (7.) In high vacuum cooling or condensing plant, arranging vacuum intensifiers and condensers in series so that the first intensifier in the series draws directly from the chamber to be evacuated and discharges into a cooler or condenser from which the next intensifier draws, and so on through the series, the condensed vapour and non-condensible fluid from the condensers being drawn off through dip seals or the like by one or more vacuum pumps and intensifiers, substantially as described. (8.) In high vacua cooling or condensing plant, arranging a vacuum intensifier to draw vapour directly from the chamber to be evacuated and discharge it into a cooler or condenser from which vapour and non-condensible fluid are drawn off by a further intensifier discharging into a further cooler or condenser having a vacuum intensifier, while the condensed vapour is drawn from both coolers or condensers by a pump through pipes having dip seals, substantially as described. (9.) In high vacua cooling or condensing plant as set forth in claim 8, cooling in one or more evaporators the circulating fluid of one or more coolers or condensers in which is a highly attenuated vapour by means of one or more additional vacuum intensifiers drawing from said evaporator or evaporators and discharging into one or more condensers or coolers of less attenuated vapour-density, substantially as described. (10.) In vacuum intensifiers, forming the nozzles with a ratio of area of neck to mouth of 10 to 250 and upwards. (11.) Vacuum intensifiers constructed and proportioned substantially as described, and illustrated with reference to Figs. 1 and 2 of the drawings. (12.) In a high vacua cooling or condensing plant, means for regulating the level of the liquid in an evaporative chamber or chambers, substantially as described. (13.) In high vacua cooling or condensing plant in which an evaporator is employed to cool the circulating fluid according to claim 5, automatically compensating for the loss of cooling fluid due to evaporation by means of a pipe connecting the evaporator with a hot well or other suitable supply, in which pipe is a valve operated by the liquid-level in the evaporative chamber, substantially as described. (14.) Apparatus as and for the purposes described with reference to Figs. 3, 4, and 5 of the drawings. (Specification, 12s. 6d.; drawings, 3s.)

No. 19817.—1st August, 1905.—HENRY BROWN, of Wairoa, Hawke’s Bay, New Zealand, Blacksmith. Apparatus for use in connection with the collection of rain-water.

Claims.—(1.) Apparatus for the purpose indicated consisting of the parts arranged, combined, and operating substantially as and for the purposes specified, and as illustrated on the drawing. (2.) Apparatus for the purpose indicated comprising a branch-pipe the upper end of which receives a downpipe from the roof, a bracket upon which said branch-pipe is pivotally mounted at an inclination, a diaphragm at the upper end of the short leg of said branch-pipe having a port covered with gauze wire, an aperture for the escape of water through the lower end of said leg, a door covered with gauze wire hinged upon the end of the lower leg, a trigger upon said door engaging with a catch upon the branch-pipe, and an extension from said bracket adapted to engage with said trigger and to open the door, and a chain from said door to the bracket whereby the door is closed when the leg is swung outwardly, substantially as and for the purposes specified and illustrated. (3.) In apparatus of the nature indicated, a door covered with wire gauze hinged upon the longer leg of the branch-pipe, said door being designed to open to allow foreign matter to pass out when the apparatus is in the position for delivering water to waste, and means whereby said door is closed when the apparatus is in position to deliver water to the storage-tank, substantially as and for the purposes specified and illustrated. (4.) In apparatus of the nature indicated, the employment of a bracket upon which the branch-pipe is pivotally mounted at an inclination, said bracket having an extension by which the door of the longer leg of the branch-pipe is opened, substantially as and for the purposes specified, and illustrated on the drawing. (Specification, 4s. 6d.; drawing, 1s.)

No. 19850. — 8th August, 1905. — WILLIAM FREDERICK WILLIAMS, of 4, Denman Street, Piccadilly Circus, London, England, Gentleman. Improvements in and relating to the means of raising and lowering railway-carriage and other sash windows and shutters.

Claims.—(1.) In a counterbalanced railway-carriage or other similar sash window or shutter which is suspended by means of a flexible connection wound upon a spring barrel, the combination of means of raising and lowering the sash by a push or pull exerted transversely thereof consisting of a hand-operated slider mounted to work in guides transversely of the window and carrying a rack and a pinion in gear with the rack and turning as one with said spring barrel, and of means for causing the sash to be on the one hand automatically locked at the height to which it may be moved, and on the other hand automatically unlocked when said push or pull is exerted upon the slider in either direction, consisting of a stationary locking-rack, a handle pivoted to the slider and retained by spring pressure in a mid position, and a latch-bolt spring-pressed in the direction to engage the locking-rack teeth, and so connected to said handle as to be by the angular movement thereof displaced transversely of the locking-rack, substantially as specified. (2.) In apparatus for operating a sliding sash as specified in claim 1, the combination with the spring barrel of a rotatable stud forming the stationary abutment for the spring, and provided with a head which is adapted to be engaged by a spanner and to be secured in various angular positions, substantially as and for the purpose specified. (3.) In apparatus for operating a sliding sash as specified in claim 1, the employment of a latch-bolt provided with a duplex operative extremity as and for the purpose specified. (4.) The means for enabling the effective length of the cord whereby the sash is suspended to be so adjusted that the sash may hang at the proper level when the slider stands at either end of its stroke, substantially as described with reference to Figs. 2 and 6 of the drawings. (Specification, 9s. 6d.; drawings, 3s.)

No. 19856. — 8th August, 1905. — BENJAMIN STANLEY NICHOLLS, JOHN HERBERT NICHOLLS, and CHARLES ALLWOOD BENNETT, trading as “Nicholls Bros.,” of Auckland, New Zealand, Ironfounders. An improvement relating to high-pressure boilers and similar water-heaters.

Claim.—In a water-heater, the formation of a wall or walls exposed to the fire, with projecting bosses as and for the purpose specified, and as illustrated in the drawing. (Specification, 1s.; drawing, 1s.)

No. 19862.—10th August, 1905.—GEORGE SKAATS MAYHEW, of 2, Basinghall Avenue, London, England, Engineer. Improved process and apparatus for preparing and cutting veneers.

Claims.—(1.) A process of manufacturing veneers faced with paper cut in a continuous sheet from a rotating boiled, steamed, or green log in which the face of the log as it rotates is first dried and then lined with a continuous sheet of tough paper or fabric, and then dried again over its faced surface, and finally the dried faced surface shaved off in the form of a thin continuous strip of veneer, substantially as described. (2.) In a machine for the manufacture of faced veneers in continuous sheets, the combination with adjustable supporting centres for a revolving log of a heated rotating adjustable roller adapted to dry the face of the log, a facing-roller adapted to press a continuous sheet of paper or fabric on the dried face of the log as it rotates, a heated roller or rollers adapted to press and dry the cemented sheet of paper or fabric upon the face of the log, an adjustable knife adapted to shave off a paper-faced veneer from the log, and a series of drying-rollers to extract the remainder of the moisture from the veneer as it passes over them from the log to the reel, substantially as described. (3.) In a machine for the manufacture of faced veneers, the construction and arrangement of parts substantially as described, and shown in the drawings. (Specification, 3s. 6d.; drawing, 1s.)