JUNE 27.] THE NEW ZEALAND GAZETTE. 1377

No. 13700.—7th June, 1901.—CHARLES MILLER, of Alton Street, Nelson, New Zealand, Photographer. Multiplex camera-slide.

Claims.—(1.) A camera-slide having a rim or frame which fits in the back of the camera, and is kept in position by “catches” at the top (instead of sliding grooves), which facilitates removal and replacement of the slide. (2.) Grooved partitions in the slide for division of the plates. (3.) The production of various geometrical shapes in photo. margins by two or more opaque screens of cardboard (according to the number of photos required), with the divisions cut out; or transparent glass, designed as described, and explained by drawings; or series of divisions of one shape only being shown, each screen being changed for “exposure” of the inner and outer sections of the plates. (4.) A number of shutters for “exposing” any part of the plates, by which it is possible to use the same plate for different photos. (5.) A detachable cover with springs attached to insure complete contact of the partitions, screens, and plates, thereby producing clearly defined margins. (6.) A frame like the foregoing (but without the shutters or cover), containing the “focussing screen” for indicating the positions occupied by the subject, substantially as described and explained.
(Specification, 4s.; drawings, 1s.)

No. 13705.—10th June, 1901.—ELIZA SHADGETT, of Brooklyn, Wellington, New Zealand, Married Woman. A preparation for cleaning and polishing boots, leather goods, furniture, metal, and other goods.

Claims.—(1.) A preparation for cleaning and polishing, consisting of an extract from the banana-tree (Musa sapientum), prepared in the manner set forth and explained. (2.) Cloths for polishing, prepared by saturating the cloths in an extract from the banana-tree, prepared in the manner explained, such cloths being then allowed to dry, as set forth.
(Specification, 1s. 3d.)

No. 13706.—10th June, 1901.—JOHN WILLIAM THOMAS, of Linwood, Canterbury, New Zealand, Well-sinker. Improved apparatus to be used in sinking wells, pile-driving, and the like.

Claims.—(1.) In well-sinking apparatus and the like, a rigidly mounted wheel having a flange upon its front side, such flange containing a stud or stop adapted to run in a groove on the circumference of a second wheel, loosely mounted upon a common shaft, and engaging said wheel, as described, for the purpose set forth. (2.) In well-sinking apparatus, a rigidly mounted wheel having a flange upon its front side containing a boss or stop, in combination with a loose or free wheel mounted upon a common shaft, and having a groove cut on its circumference as specified, a collar upon the shaft, and a stud and link for connecting the apparatus with the monkey or weight, as described, and for the purpose set forth. (3.) In well-sinking apparatus, the modified arrangement consisting of a stop upon the face of the rim of a rigidly mounted wheel, and a second wheel loosely mounted upon a common shaft, and having a slot cut in the rim of its face, such slot receiving said stop, as illustrated, and for the purpose described.
(Specification, 3s.; drawings, 1s.)

No. 13708.—12th June, 1901.—PEDRO VICTOR SAN MARTIN, Chemist; GREGORIO SOLDANI, Merchant; and LORENZO BEVERLEY TRANT, Merchant, all of 253, Calle San Martin, Buenos Aires, Argentine Republic. An improved process for tanning.

Claims.—(1.) The employment of nitric acid for tanning hides and skins. (2.) The employment of nitric acid, in combination with scraps of wrought iron, for tanning hides and skins. (3.) The employment of nitric acid, in combination with scraps of wrought iron and sal ammoniac, for tanning hides and skins. (4.) The employment of nitric acid and wrought iron, in combination with sal ammoniac and sugar, for tanning hides and skins. (5.) The employment of nitrate of iron, with or without nitric acid, for tanning hides and skins. (6.) For tanning hides and skins, the employment of acetic acid, or vinegar, and sulphate of magnesia, for a second or complementary bath.
(Specification, 1s. 6d.)

No. 13711.—13th June, 1901.—EDWARD WATERS, Jun., a member of the firm of Edward Waters and Son, Patent Agents, of 414–418, Collins Street, Melbourne, Victoria (nominee of George Henry Oatway, of 116, Fenchurch Street, London, E.C., England, Manufacturers’ Agent). Improvements in automatic fire-alarms.

Claims.—(1.) In a fire-alarm apparatus in which a contact-maker, supported by an approximately horizontal wire, is arranged to make suitable contacts by the sagging of the wire by heating the combination therewith, of means for sagging the wire without heating for the purpose of testing, and restoring the wire to position, substantially as described. (2.) In a fire-alarm apparatus in which a contact-maker, supported by an approximately horizontal wire, is arranged to close suitable contacts by the sagging of the wire when heated, the combination therewith for the purpose of testing the apparatus of means for raising the contacts relatively to the contact-maker, or lowering the contact-maker relatively to the wire, and restoring the parts to position, substantially as described. (3.) In a fire-alarm apparatus in which a wire which is approximately horizontal is arranged to maintain a nominally closed circuit, and the sagging of the wire when heated opens the circuit, the combination therewith of means, substantially as are described, for the purpose of testing the circuit without heating.
(Specification, 7s.; drawings, 2s.)

No. 13712.—13th June, 1901.—JAMES BAKER, of 237, Dryburgh Street, Melbourne, Victoria, Engineer. Improvements in bicycles driven partly by the rider’s weight.

Claims.—(1.) In a cycle of the class indicated, the combination with the frame thereof of a clip, holding in position a guide-frame having two pairs of roller bearings at right angles to one another, and ears j (or ear j¹), substantially as and for the purposes set forth. (2.) In a cycle of the class indicated, a rod p having at its upper end a fork o, and at its lower end a pedal-crank at the outer side, and a special crank at the inner side between said rod and the bottom bracket, the two cranks not being in line, all substantially as and for the purposes set forth. (3.) In a cycle of the class indicated, the combination with the frame thereof of a clip, holding in position a guide-frame having two pairs of roller bearings at right angles to one another, a saddle-supporting fork the members of which pass through the said frame as set forth, said fork being at the top of a rod which operates a special crank, substantially as and for the purposes set forth. (4.) In a cycle of the class indicated, the combination with the frame thereof of a clip, holding in position a guide-frame having two pairs of roller bearings at right angles to one another, a saddle-supporting fork the members of which pass through the said frame as set forth, said fork being at the top of a rod, which operates a special crank, the outer end of which has a crank-pin, which is connected to the inner end of the crank of a pedal in such manner that these two cranks will be at an angle with one another, all substantially as and for the purposes set forth.
(Specification, 2s. 9d.; drawings, 1s.)

No. 13715.—10th June, 1901.—GUSTAV ADOLPH HEINRICH PERTSCH, of Kiata East, Lowan, Victoria, Farmer. Improvements in or connected with the propulsion of bicycles or tricycles.

Claims.—(1.) In bicycles or tricycles, a free front wheel steered by a reciprocating hand-lever, said lever having a handle-bar at its top, and at its bottom a collar turning in a slot in the enlarged middle of a pivot-pin, said collar having extensions thereon operating two connecting-rods leading to a motion-carrying cross-bar pivoted in its middle, and from which passes a connecting-rod to each end of an extended axle on the free front wheel, all as and for the purposes described, and as illustrated in the drawings. (2.) In bicycles or tricycles, the rear wheel or wheels driven by a reciprocating hand-lever having handle-bars for the hands at its top and at its bottom a pivot-pin, overhanging trunnions, crank-arms, and combined rest-and-thrust pedals for the feet, said lever having intermediately pivoted to it a connecting-rod the rear end of which is pivoted to a radially adjustable crank-pin on a sprocket-wheel, from which wheel a driving-chain leads to the sprocket-wheel on the driving-wheel, all as and for the purposes described, and as illustrated in the drawings. (3.) In bicycles or tricycles, a sliding-seat supported on springs resting upon a carriage, beneath which are wheels rotating upon the frame of the machine and held there by a retaining-strap in combination with a hand-lever pivoted at its bottom in a pivot-pin, from the overhanging trunnions of which combined rest-and-thrust pedals are supported, and a connecting-rod intermediately pivoted to said hand-lever and rotating by a pin the front sprocket-wheel, a chain from said sprocket-wheel to the driving-wheel, all as and for the purposes described, and as illustrated in the drawings. (4.) Improvements in and connected with the propulsion of bicycles or tricycles, consisting of a sliding-seat supported on springs over a carriage resting on wheels rotating on the machine-frame, in combination with a hand-lever pivoted at its bottom in a pivot-pin, from the overhanging trunnions of which combined rest-and-thrust pedals