Jan. 21.] THE NEW ZEALAND GAZETTE. 253

Claims.—(1.) In brewing, soapmaking, and other boilers, a cover of conical or tapering form secured above the top of the boiler, an opening in the cover provided with a sliding or other door, and a pipe leading upwards from the top of the cover provided with a damper-valve near its lower end, substantially as and for the purposes set forth. (2.) In brewing, soapmaking, and other boilers, a cover of conical or tapering form secured above the top of the boiler in such a manner as to form a rim around the bottom edge of the cover, holes at intervals within the cover around its bottom edge, an opening provided with a door in the cover, and a pipe leading upwards from the top end of the cover, all substantially as and for the purposes specified.
(Specification, 2s. 9d.; drawing, 1s.)

No. 16146.—25th March, 1903.—WALTER DAVID WILSON, of Albert Street, Auckland, New Zealand, Blacksmith. An improved swingletree-iron.*

Claim.—In the improved swingletree-iron specified the iron made with two open ends, shaped and tempered, with holes made therein in combination with screw-bolt to be passed through said holes, and nut to be screwed on to outer screw end of said bolt, said iron having loop projected therefrom for the purpose set forth, substantially as described and illustrated.
(Specification, 1s. 9d.; drawing, 1s.)

No. 16186.—4th April, 1903.—ROBERT CONGREVE, of 127, Colombo Street, Christchurch, New Zealand, Ironmonger. Improved locking-device for bicycles.*

Claims.—(1.) For the purpose indicated, the combination with a frame or other fixed part of a bicycle of a lock attached thereto, said lock having a bolt designed when operated to project into the path of a crank, spoke, or other revolving or rotating part of the bicycle, substantially as and for the purposes specified and illustrated. (2.) For the purpose indicated, in combination, a lock secured to the frame of a bicycle and a pivoted arm, said lock being designed to hold the arm in and out of its operative positions, substantially as specified and illustrated. (3.) For the purpose indicated, in combination, an arm pivoted upon the frame of a bicycle and a lock designed to hold said arm in and out of its operative positions, said arm being bifurcated to receive the crank of the machine, substantially as and for the purposes indicated. (4.) For the purpose indicated, in combination, a lock secured to the frame of a bicycle, a pivoted arm, a hook upon the end of said arm adapted to enter the lock and to engage a spring-operated catch therein, substantially as specified and illustrated. (5.) For the purposes indicated, an arm pivoted upon the frame of a bicycle and a spring clip upon the end of said arm adapted to be sprung over a frame-member of the machine and thereby to maintain said arm out of its operative position, substantially as set forth.
(Specification, 3s. 6d.; drawings, 2s.)

No. 16306.—2nd May, 1903.—CHARLES NUNN SCURR, of Dunedin, New Zealand, Student (nominee of Robert Wales, of Dunedin aforesaid, Engineer). Improved arm-adjustment for mitre-cutting frame.*

Claims.—(1.) In mitre-cutting machine of the class described, mechanism for raising one of the arms in an inclined plane, said arm remaining always horizontally substantially as and for the purpose set forth. (2.) In a mitre-cutting machine of the class described, a rest, brackets attached at an angle to the back thereof, a base piece, columns secured thereto at said angle and slidable in said brackets, a threaded bracket on said rest, and a screw therein substantially as and for the purposes set forth.
(Specification, 1s. 9d.; drawings, 2s.)

No. 16397.—28th May, 1903.—CHARLES VINCENT POTTER, of 20, Clyde Street, St. Kilda, Victoria, Engineer. An improved acidulated oleaginous solution, and process for mixing same, to be used for mixing paints, street-sprinkling, and kindred purposes.*

Claims.—(1.) The solution, consisting of oil, fat, or other oleaginous substance, water, and any one of the spheric series or group, in the proportions and prepared or mixed as described. (2.) The process of mixing or preparing an acidulated oleaginous solution as and in manner and for the purposes set forth.
(Specification, 2s.)

No. 16442.—4th June, 1903.—DAVID THOMSON, of Gorgie Mains, Slateford Road, Edinburgh, Scotland, Engineer. Dividing-machine for dividing liquid, granular, and plastic substances from bulk.

Claims.—(1.) In dividing-machines, the arrangement of the screw, the means of carrying the substances into the cylinder and forcing them forward to the orifice, and of discharging them in equal units into the alternately receiving and discharging cylinders, substantially as and for the purposes described and illustrated on the sheets of drawings. (2.) In dividing-machines, the arrangement of the cylinder and the screw, substantially as and for the purposes described and illustrated on the sheets of drawings. (3.) In dividing-machines, the arrangement of piston, substantially as described and illustrated in Figs. 8, 10, and 11 of the sheets of drawings. (4.) In dividing machines, the combination of the arrangement of the horizontal cylinder and the screw as claimed in claim 2, with a relief-cylinder and piston close to the orifice D17, substantially as described and illustrated on the sheets of drawings. (5.) In dividing-machines, forming the steel helix with a cutting-knife to cut vertically and a gradually-increasing pitch up to the point of the outlet-orifice, substantially as and for the purposes described and illustrated on the sheets of drawings. (6.) In dividing-machines, forming the circular knife at the entrance of the cylinder in such a manner as to cut longitudinally, substantially as and for the purposes described and illustrated on the sheets of drawings. (7.) In dividing-machines, the means for discharging the substances in quantities of equal cubic measurement, including the arrangement of the receiving and discharging cylinders and the slide and pistons, substantially as and for the purposes described and illustrated on the sheets of drawings. (8.) In dividing-machines, the means of regulating the cubic capacity of receiver cylinders, substantially as and for the purposes described and illustrated on the sheets of drawings. (9.) In dividing-machines, the slide in combination with the cylinders for receiving substances from the orifice of the screw cylinder, substantially as and for the purposes described and illustrated on the sheets of drawings. (10.) In dividing-machines, the combination of the arrangement of the cylinder and screw, as claimed in claim 2, with the slide and the receiving cylinders, substantially as and for the purposes described and illustrated on the sheets of drawings. (11.) In dividing-machines, the means for discharging the substances in equal units, including the combination of the arrangement of the cylinder and screw as in claim 2 and the arrangement of the relief vertical cylinder and piston as in claim 3, and the receiving and discharging cylinders, substantially as and for the purposes described and illustrated on the sheets of drawings. (12.) In dividing-machines, the application of the reciprocating movement of pistons in receiving and discharging cylinders to operate the pumps for injecting and communicating the coating material to the walls of the receiving cylinders, substantially as and for the purposes described and illustrated on the sheets of drawings. (13.) In dividing-machines, the application of the movement and pressure received on the face of the receiving-cylinder piston from the inflowing material, and the transmission of that movement and pressure to effect the discharge of the contents of the discharging-cylinder, substantially as and for the purposes described and illustrated on the sheets of drawings. (14.) In dividing-machines, the application of a variable speed-ratio between the screw and the constant of the reciprocating slide, substantially as and for the purposes described and illustrated on the sheets of drawings. (15.) In dividing-machines, the means of operating the screw and changing its speed to any desired ratio to the constant, substantially as and for the purposes described and illustrated on the sheets of drawings. (16.) In dividing-machines, the means of removing the screw in order to allow the use of feeders of different forms and also for cleaning purposes, substantially as and for the purposes described and illustrated on the sheets of drawings. (17.) In dividing-machines, the use of worm feeders instead of screws, substantially as and for the purposes described and illustrated on the sheets of drawings. (18.) In dividing-machines for substances requiring heat the arrangement for heating and maintaining the cylinder at any required temperature, substantially as and for the purposes described and illustrated on the sheets of drawings. (19.) In dividing-machines, for substances that will not admit of pressure when under treatment, the mechanism for making the