1590
THE NEW ZEALAND GAZETTE
[No. 57

Claim.—An improved legging, consisting of the combination of a body, with or without a toe-cap, an integral or attached side portion at one side, and at the other side an extension, a binding-strap the lower end of which is secured to the said extension and the upper end of which strap has adjusting-holes therein, a buckle for said strap, a pocket inside the body, said pocket being formed by a pocket-piece secured to the body on the top, the bottom, and one side of the said pocket-piece, all as and for the purposes described, and as illustrated in the drawings.
(Specification, 3s. ; drawing, 1s.)

No. 16502.—17th June, 1903.—EDWARD JOHN SHAW, of Astral Works, Hatherton Street, Walsall, Staffordshire, England, Lamp and Glass Manufacturer. Improvements in and relating to adjustable pendants for hanging lamps and the like.

Claims.—(1.) An adjustable pendant for hanging articles, consisting of two grooved drums or pulleys secured fast to a common axle mounted in a support and maintained at a predetermined height, a flexible connection depending from each of said pulleys, said connections being wound thereon in opposite directions, substantially as described. (2.) An adjustable pendant for hanging articles in which two grooved drums or pulleys are made fast to a common axle side by side, the axle being secured in a fixed fork support, and flexible connections depending from said pulleys, being wound thereon in opposite directions, substantially as described. (3.) In an adjustable pendant for hanging lamps which comprises pulleys fast to an axle, supported at a predetermined height, and a flexible connection depending from each of said pulleys, an electric or pipe connection which suspends the lamp from its pulley, communicating electrically or by means of passages with the service-pipe above the pulleys so as to afford continuous feed to the lamp, adjustably supported from the axle at a predetermined height, substantially as described. (4.) An adjustable double-pulley pendant for hanging lamps, in which the lamp-supporting pulley is in communication with the service-pipe by means of a hollow axle to the pulleys and a passage in the axle-support, and in communication with the flexible supply-pipe by means of a suitable joint, so that the lamp may be fed at whatever height it may be, substantially as described, and illustrated on the drawings. (5.) In an adjustable double-pulley pendant for hanging articles, friction-plates secured upon the axle, which is common to the pulleys, and maintained at a predetermined height, so that the pulleys may be held in any desired position by friction with their fixed forked support, substantially as described. (6.) In an adjustable pendant for hanging articles, a stop device, screw-threaded internally and movable upon a flexible metallic pipe, for limiting the upward movement of the said flexible connection, substantially as described, and illustrated in Fig. 8. (7.) In a double-pulley adjustable pendant, the combination, with a flexible connection secured to and dependent from one of the pulleys, of a spring secured at its ends to the other pulley, and to a non-moving part of the pendant support respectively, the said spring being coiled on the second pulley in the opposite direction to the flexible connection wound upon the first.
(Specification, 5s. 6d. ; drawings, 2s.)

No. 16503.—17th June, 1903.—EDWARD WATERS, Jun., a member of the firm of Edward Waters and Son, Patent Agents, of 414-418, Collins Street, Melbourne, Victoria (nominee of the Edison Ore-milling Syndicate, Limited, of Fitzalan House, Arundel Street, Strand, London, England; the assignees of Thomas Alva Edison, of Llewellyn Park, New Jersey, United States of America, Inventor). Improvements in roller crushing-mills.

Claims.—(1.) A roller crushing-mill in which the crushing-rolls comprise crushing-plates attached to a roll centre or hub secured to the roll-shaft, characterized by the roll-shaft 9 having an enlargement 19, and by the roll centre or hub 21 being formed in two parts 21, 22, which fit on the shaft 9 at respectively opposite sides of the enlargement 19, the said two parts being connected together by the crushing-plates 23, which are secured to their peripheries, and thereby prevented from moving along the roll-shaft. (2.) A roller crushing-mill in which the crushing-rolls comprise crushing-plates attached by bolts, screws, or nuts to a roll centre or hub secured to the roll-shaft, characterized by the heads 41 of the said bolts or screws 39 or the nuts 46 being situated in recesses 40 and having fitted therein metal detents 44 whose outer edges engage with inwardly presented ratchet-teeth 42 formed around the recesses. (3.) A roller crushing-mill characterized by the rolls having their surfaces corrugated, the leading sides 37 of the groove 36 of such corrugation being splayed in the direction of the rotation of the roll more than are the other sides in the opposite direction, so as to improve the “biting” effect on the material to be crushed. (4.) A roller crushing-mill characterized by the crushing-rolls being each connected to its driving-gear through a coupling the two parts 47, 48, of which are provided with one or more pairs of coaxial hard steel bushes 49, through each pair of which is passed a pin 50 of softer metal, the said pin being held in position by a split clamping-sleeve 51 screwed into one of the coupling-parts and prevented from becoming accidentally unscrewed by a wire 54 passed through holes in the said sleeve and coupling-part, the pin becoming shorn by the bushes 49 when undue resistance to rotation of the rolls is presented. (5.) A roller crushing-mill in which the bearings for the crushing-rolls are lined with a metal differing from that of the bearings themselves, characterized by the fact that the said lining-metal 25 penetrates entirely through the bearings 24 at the parts 26 through which the lubricant is to be supplied, and that the lubricating-pipes 27 are connected directly to these parts, so that the lubricant is prevented from getting between the bearing 24 and the lining-metal 25. (6.) A roller crushing-mill characterized by the fact that the bearings of the crushing-rolls are each provided with a lubricant space 28 closed on one side by packing 30 and a gland 31, the said space being connected to a passage 33 for the escape of the surplus lubricant. (7.) A roller crushing-mill in which one of the rolls is laterally movable and connected to its driving-shaft by a non-circular wobbler or loose shaft characterized by the roll-shaft 9 and driving-shaft 12 having each fitted thereon a coupling-part 59 or 60 having a non-circular spigot 62 of the same shape in cross-section as is the wobbler or loose shaft 56, and the said wobbler being coupled to the spigots by sleeves 57 secured to the respective coupling-parts by clips 58 attached to the said coupling-parts.
(Specification, 9s. ; drawing, 4s.)

No. 16504.—17th June, 1903.—CHARLES EDWIN BERNAYS, of 45, Adelaide Street, Brisbane, Queensland, Consulting Engineer. Improvements in means for getting more perfect combustion of fuel in the fire-chambers of boilers, and also for the prevention of smoke and sparks.

Claims.—(1.) The introduction into the combustion-chamber of a locomotive or other boiler of a supply of air (cold or hot) under pressure in the shape of a screen or film across the chamber, and in such a way that it offers a resistance to the passage of particles of unconsumed carbon from the fuel, and also a fresh supply of oxygen to aid combustion, for the purposes and in the manner described. (2.) An arrangement whereby the present or any other shape of brick arch is used in the fire-box of a boiler in conjunction with a film of air, as and for the purposes described.
(Specification, 5s. ; drawings, 4s.)

No. 16505.—17th June, 1903.—HENRY LIVINGSTONE SULMAN and HUGH FITZALIS KIRKPATRICK-PICARD, of 44, London Wall, London, England, Metallurgical Chemists. Improvements in or relating to the recovery of precious metals.

Claims.—(1.) The process of recovering precious metals in which the sufficiently finely ground ores or pulps mixed with a solvent, or leached, filtered, or decanted solutions containing the values, are passed up through a continuous vertical or inclined column, film, or sheet of mercury, held between amalgamated surfaces and kept continuously charged with an electro-positive metal, such as sodium, for the purpose described. (2.) The process of recovering precious metals in which a solution carrying the values partly in suspension or not is passed up through mercury kept continuously charged with an electro-positive metal, such as sodium, and passing slowly downward in a narrow interspace between two or more inverted cones or the like. (3.) An apparatus for use in the recovery of precious metals, consisting of concentric, inverted, conical, or similar vessels, the surfaces of which are amalgamated, having the narrow intervening space filled with a descending body of mercury charged with an electro-positive metal through which the solution carrying the values is passed upwards, substantially as and for the purpose described. (4.) The complete process of recovering precious metals, substantially as described. (5.) The complete apparatus for use in recovering precious metals, substantially as described, and illustrated in the drawings.
(Specification, 6s. ; drawing, 1s.)

No. 16506.—17th June, 1903.—HENRY BAUMGARTEN, of 222, Shaftesbury Avenue, London, England, Gas Engineer. Improved automatic generator and lamp for acetylene gas.