Nov. 12.] THE NEW ZEALAND GAZETTE. 2951

No. 25005.—30th September, 1908.—HENRY S. SPACKMAN ENGINEERING COMPANY, of 42 North 16th Street, Philadelphia, United States of America, a New Jersey corporation (assignees of Henry Spencer Spackman, of 105 Ardmore Avenue, Ardmore, Pennsylvania, United States of America, Engineer, and Ellis Warren Lazell, of 3306 Arch Street, Philadelphia aforesaid, Engineer). Cementitious materials, and preparation thereof.

Extract from Specification.—This invention relates to cementitious—that is to say, plastic—materials or compositions, comprising plasters, hydraulic and other cements, and relates more particularly to highly cementitious materials and to the preparation thereof by the incorporation of separately prepared calcium-aluminate or similar accelerating material with independently cementitious material, such as lime or other similar earthy alkali material, or cements or mixtures comprising available lime or similar earthy alkali substance mixed or combined with co-operating silicious material, such as fine-grained high silica clays or shales, or with natural puzzolanic material, such as tufa, trass, infusorial earth, gaize, or with artificial puzzolanic materials, such as ordinary blast-furnace slag or specially prepared slag or silicates of calcium or other material.

[NOTE.—The above extract from the specification is inserted in place of the claims.]
(Specification, 8s. 6d.)

No. 25026.—7th October, 1908.—WILLIAM FOWLES, of Pietermaritzburg, Natal. Refrigerating Engineer. A new and improved method for the production of predigested foods.

Claim.—The discovery of a new and improved method for the purpose of producing, in a concentrated form, predigested foods containing a very high percentage of directly assimilable nutritive properties, to be extracted from meat, cereals, or any other similar substance by the application of the natural chemical substance contained in the pawpaw (Carica papaya) or any other similar vegetable.
(Specification, 3s. 6d.)

No. 25057.—12th October, 1908.—JOHN MITCHELL, of National Chambers, Swanson Street, Auckland, New Zealand, Architect. Improvements in the construction of walls and partitions of buildings.

Claims.—(1.) In the construction of walls and the like, the employment of a slab having an attached brick overlapping the end and bottom edge thereof, substantially as set forth. (2.) A wall constructed of slabs of building-material grooved at their ends, a brick attached to each slab and overlapping the end and bottom edge of the slab, a foundation having a groove and rebates to receive the bricks and slabs respectively, and horizontal and vertical reinforcing-rods, substantially as set forth. (3.) In the construction of walls and the like, the employment of a tie-bar having one end slit to form reversed feet, and a pin through the other end of the bar engaging holes formed in the slabs, substantially as set forth. (4.) In the construction of walls and the like, the employment of a tie-bar made in two parts united by a rivet, and having an end shaped as described in claim 3, and having its other end made of brass, substantially as set forth.
(Specification, 3s. 6d.; drawing, 1s.)

No. 25061.—9th October, 1908.—BENJAMIN TREWHELLA and WILLIAM TREWHELLA, trading as “Trehwella Bros.” at Trentham, Victoria, Australia, Engineers and Ironworkers. An improved roller-grip for band gearing.

Claims.—(1.) An improved roller-grip for band gearing, comprising the combination with a pulley of a rockable lever situated close to the periphery of said pulley, a gripping-roller at each end of said lever, a pivot for the lever intermediate of said rollers, and a band adapted to pass round said pulley and between same and said gripping-rollers, for the purpose specified. (2.) In a device of the character set forth, arranging the pivot of the lever midway between the two rollers. (3.) In a device of the character set forth, the application of two of the gripping-devices to an endless band passing around two pulleys. (4.) In a device of the character set forth, pivoting the lever to a radial arm loosely mounted on the axle of the pulley. (5.) In a device of the character set forth, pivoting the radial arm of the lever on the boss of the pulley. (6.) In a device of the character set forth, forming the radial arm of a yoke shape, passing same through an eye on the lever, and loosely mounting its ends on the axle of the pulley and on either side of the latter. (7.) In a device of the character set forth, forming the lever of two separated guide-plates bolted together, and seating the gripping-rollers within same. (8.) In a device of the character set forth, providing a central guide-pulley between the guide-plates of the lever.
(Specification, 5s.; drawing, 1s.)

No. 25063.—9th October, 1908.—BENJAMIN TREWHELLA and WILLIAM TREWHELLA, trading as “Trehwella Bros.” at Trentham, Victoria, Australia, Engineers and Ironworkers. Improvements in pawl and ratchet mechanism.

Claims.—(1.) In pawl and ratchet mechanism having a pair of pawls supported in grooves in an oscillating tumbler, a clip in the tumbler between the pawls for holding the latter in said grooves, and a pin passing longitudinally or in an axial direction through said tumbler, and through said clip for securing same in the tumbler. (2.) In mechanism as described, a T-shaped clip having a central projection and two bearing-ends, and a central recess in the tumbler to receive said projection, for the purpose specified. (3.) In mechanism as described, forming each of the pawls with a central opening near its bearing-end, and passing the respective ends of the clip therethrough and over the cylindrical portion forming the bottoms of said openings. (4.) In mechanism as described, securing a bar on the frame across the axis of the tumbler and in the approximate direction of the thrust of the pawls. (5.) In mechanism as described, employing the bar as a limiting stop for the degree of oscillation of said tumbler, in conjunction with abutting faces on the end of said tumbler adapted to contact with said bar. (6.) In mechanism as described, providing a hole of suitable shape in the end of the tumbler through which the bar is passed, and employing the sides of said holes as the abutting faces for said bar.
(Specification, 4s.; drawing, 1s.)

No. 25070.—13th October, 1908.—JOHN MITCHELL, of National Chambers, Swanson Street, Auckland, New Zealand, Architect. Improved construction of walls and partitions of buildings.

Claims.—(1.) In the construction of walls and partitions, the employment of a building-slab having a rebated top edge and ends, a groove in the bottom edge, and a trench in the middle part of the slab, substantially as set forth. (2.) In combination with slabs as described in claim 1, the employment of vertical rods in the end rebates and trenches, and horizontal rods lying in the rebates at the top of the blocks and locking the vertical rods in position, substantially as set forth. (3.) A wall consisting of superposed rows of slabs as described in claim 1 cemented together and set upon a trenched foundation, vertical rods cemented in the rebates and trenches, and horizontal rods cemented in the rebates and grooves at the top and bottom of the slabs, substantially as set forth. (4.) In walls constructed as described in claim 3, holdfasts engaging the horizontal rods and securing grounds to which laths or wood lining may be nailed, substantially as set forth. (5.) A building-slab made with a stone face and concrete backing, and a wire bent into corrugations partially embedded in the concrete and cemented in a groove formed in the stone, substantially as set forth.
(Specification, 3s. 3d.; drawing, 1s.)

No. 25077.—10th October, 1908.—ARTHUR ERNEST STYLES, of Wendon Valley, New Zealand. Farmer. Improved dray-brakes.

Claims.—(1.) In two-wheeled vehicles, in combination with their brakes, a lever fulcrumed to the said vehicle on each side of same, pressing on the brakes for keeping them in springy tension by a line to each secured to the front of the said vehicle, and kept taut by tightening-screws, all substantially as set forth. (2.) In brakes of two-wheeled vehicles,