Jan. 7.] THE NEW ZEALAND GAZETTE. 101

back, a rigid support for holding the upper leaf-section above the level of the lower leaf-section, said upper leaf-section being decreased in length to leave a space or margin on the lower leaf-section at the attached end thereof for the purpose of carrying forward the total of past account, and a carbon manifolding-sheet, substantially as and for the purpose described. (14.) In a manifolding account-book, the combination with an original sheet, comprising a main part and a stub part, of a duplicate sheet extending under both said main part and said stub part, a carbon sheet interposed between said original sheet and said duplicate sheet, and means concealed beneath said carbon sheet to prevent the duplication of memoranda on said stub part. (15.) In a manifolding account-book, the combination with an original sheet, comprising a main part and a stub part, of a duplicate sheet extending under both said main part and said stub part, a carbon sheet interposed between said original sheet and said duplicate sheet, and means concealed beneath said carbon sheet to prevent the duplication of a certain portion of said stub part. (16.) In a manifolding account-book, the combination with an original sheet, comprising a main part and a stub part, of a duplicate sheet extending under both said main part and said stub part, a carbon sheet interposed between said original sheet and said duplicate sheet, and a flexible flap beneath said carbon sheet to prevent the duplication of memoranda on the stub part. (17.) A manifolding account-book consisting of a lower leaf-section composed of a plurality of leaves, each of which consists of a main part adapted to be retained within the book and a stub part adapted to be detached, an upper leaf-section composed of a plurality of duplicate leaves adapted to be detached from the book, a carbon sheet extending over the entire portion of the detachable duplicate sheet, and a flexible flap bound together with said duplicate leaves and situated beneath said carbon sheet in such manner as to prevent a duplication of memoranda of said stub part, substantially as described.
(Specification, 11s.; drawings, 2s.)

No. 17352.—10th December, 1903.—WILLIAM JOSEPH ARMBRUSTER, Chemist, and JOHN MORTON, Gentleman, both of St. Louis, Missouri, United States of America. Improvements in chlorination-barrels.

Extract from Specification.—The object of my invention is to construct a chlorination-barrel which shall be provided with a special compartment to contain the chemicals from which the chlorine is generated, provision being made to conduct the chlorine-gas from such compartment to the main chamber of the barrel containing the ore or pulp to be treated, such provision being either through an opening disposed about the axis of rotation of the barrel and communicating directly with the space above the surface of the pulp, or through an open coil disposed adjacent to the inner peripheral surface of the barrel and having its intake or fixed end in direct communication with such compartment. . . . A further object of my present invention is to provide special means for heating the contents or pulp to be treated; a further object is to provide means for cutting off the supply of chlorine at the end of the operation, or at any time when occasion therefor may arise; a further object is to provide means for introducing the chlorine-producing reagents without the danger of their reacting upon each other until after the barrel is set in motion; and a further object is to provide such other improvements better apparent from a detailed description of the invention. . . .
(Specification, 15s.; drawings, 5s.)
[NOTE.—The above extract from the specification is inserted in place of the claims.]

No. 17353.—10th December, 1903.—HENRY R. WORTHINGTON, a New Jersey corporation having its place of business at 114, Liberty Street, New York, United States of America (assignees of William Clinton Brown, of Richmond, New York aforesaid, Mechanical Engineer). Improvements in compensating direct-acting engines.

Claims.—(1.) In a compensating direct-acting engine, the combination with a plurality of pistons timed differently, of means whereby power is stored up during the first part of the strokes of the pistons and utilised during the latter part of the strokes, and connections between the pistons for aiding each piston in the last part of its stroke and securing a uniform stroke and timing of the pistons. (2.) In a compensating direct-acting duplex engine, the combination with the cylinders and pistons on opposite sides of the engine, of compensating mechanism acting to store up power during the first part of the stroke of each piston and utilise it to aid the piston during the latter part of its stroke, and connections between the pistons for aiding each piston in the last part of its stroke by the other piston and securing a uniform stroke and timing of the pistons. (3.) In a compensating direct-acting duplex engine, the combination with the cylinders and pistons on opposite sides of the engine, of compensating cylinders and pistons acting in opposition to the pistons during the first part of their strokes and in conjunction therewith during the latter part of their strokes, and positive mechanical connections between the pistons whereby each piston in the first part of its stroke aids and controls the other piston in the last part of its stroke. (4.) In a compensating direct-acting engine, the combination with connections between the pistons for aiding each piston in the last part of its stroke and securing a uniform stroke and timing of the pistons, of mechanism acting independently of said connections to store up power during one part of the piston-stroke and utilise it to aid the piston during another part of the stroke. (5.) The combination with the cylinders and pistons on opposite sides of a duplex direct-acting engine, of the compensating cylinders and pistons e, e¹, slide 21 guided in a fixed path transverse to the piston-rods, and compensating toggle levers connecting the slide with the piston-rods. (6.) A compensating direct-acting duplex engine substantially as described in connection with the drawings.
(Specification, 9s.; drawings, 3s.)

No. 17354.—10th December, 1903.—HENRY R. WORTHINGTON, a New Jersey corporation having its place of business at 114, Liberty Street, New York, United States of America (assignees of William Clinton Brown, of Richmond, New York aforesaid, Mechanical Engineer). Improvements in valve-movements for duplex steam-engines.

Claims.—(1.) In an expansion duplex engine having two or more cylinders on each side, the combination with the valves, of rock shafts extending across the engine and connected to the valves for operating the valves on each side of the engine from the opposite side, rock-shaft-operating rods carried by the pistons of the larger cylinders, and connections between said rods and the rock shafts. (2.) In a multiple-expansion duplex engine, the combination with the cylinders on opposite sides of the engine and their valves, of rock shafts mounted between the high and intermediate pressure cylinders and extending across the engine and connected to the valves for operating the valves on each side of the engine from the opposite side, rock-shaft-operating rods connected to the low-pressure pistons, and connections between said rods and the rock shafts. (3.) In a multiple-expansion duplex engine, the combination with the cylinders on opposite sides of the engine and their valves, of rock shafts mounted between the high and intermediate pressure cylinders and extending across the engine and connected to the valves for operating the valves on each side of the engine from the opposite side for admission, and operating the high-pressure-cylinder valves by their own side for cut-off, rock-shaft-operating rods connected to the low-pressure pistons, and connections between said rods and the rock shafts. (4.) The combination with the cylinders B, C, and B¹, C¹, on opposite sides of the engine, and their valves, of rock shafts K, L, mounted outside the smaller cylinders B, B¹, and connected to the valves, rods M carried by the pistons N of the larger cylinders C, C¹, and extending between the cylinders B, B¹, and connections from the rods M to the rock shafts K, L, between the cylinders B, B¹, substantially as described. (5.) A triple-expansion duplex engine substantially as shown and described in connection with Figs. 1 and 2. (6.) A compound duplex engine substantially as shown and described in connection with Figs. 3 and 4.
(Specification, 5s.; drawings, 2s.)

No. 17357.—8th December, 1903.—MONCKTON DAVY SYNNOT, of 504–526, Bourke Street, Melbourne, Victoria, Woolbroker (assignee of Michael Murphy, of Winton, Campbelltown, Tasmania, Rabbiter). An improved method of trapping rabbits.

Claim.—An improved method of trapping rabbits, consisting in throwing a little earth into the burrow, placing a piece of wire netting or wire-netting framework over the mouth of the burrow, and securing same in position in such a manner that the rabbits will scratch back the earth and block the burrow, so as to imprison themselves, substantially as set forth.
(Specification, 1s.)

No. 17369.—14th December, 1903.—JOSEPH COOK, care of Messrs. Danks and Son, of 10, Brandon Street, Wellington, New Zealand. Improved apparatus for feeding calves and other young animals.

Claims.—(1.) Apparatus for the purpose indicated, comprising a tube the upper portion of which is bent approximately at right angles, a disc upon said tube, a nipple at its