Patents of Interest to Builders.

Progress, Volume XV, Issue 3, 1 November 1919, Page 654

Patents of Interest to Builders.

Concrete Tile Presser BoxA patent, No. 40,795, has been taken out by A. Bairstow, of Petone, and A. S. Kerr, of Lower Hutt, which consists in providing a two-part box wherein a plurality of slates can be pressed simultaneously. One way of mixing the box. is .to, divide same diagonally, the part with the bottom attached being the holder, and the other part which is slidable on the holder being the

shutter or closer. The shutter or closer is capable of being clamped, or locked to the holder in any position. The inner surfaces of the sides of both the holder and the shutter or closer have series of grooves cut therein, from which drainage-holes open through the outer surface of said sides. The interior of the box is lined with porous material such as canvas, in two or more pieces.

Skylight Glazing Bar—A patent, No. 41,951, has been taken out by H. Starke, of Christchurch, which comprises in combination With sheets of glass provided around their edges with metal heads or reinforcement-clips astragal or glazing-bars, each hemispherical cover. Similarly, the same object may be attained by the- employment of gimbals to

which the pointer is fixed and from which depends a weight for the retention of the same in the perpendicular position. And, iilstead of a hemispherical glazed or transparent cover being Applied to the instrument, a metallic cover provided with circumferential and radial slits or the like may be employed, through which can be discerned the position of the pointer and the subsequent inclination indicated.

Concrctc-Tllc Manufacture and. Apparatus—A patent, No. 40,33i2 has been taken out by, W. McLeod, Victoria Avenue, Wanganui, which comprises using a concrete pallet; using a system of cars) and carriers for drying and curing the tiles; using a pallet-carrier for drying and curing, the tiles; and'using a mould-box . for making concrete pallets having

hinged sides, a frame fixed to a bench on which two wedgepieces are secured by a swinging-joint for firmly securing the ends of said hinged sides whilst the pallet is being

formed, buttons to prevent said sides swinging back when the said box is turned over, and a resting-plate for the top of said box. Other features arc contained in invention.

Hothouse Heating—A patent No. 41,823 has been taken out by W. O’Brien, builder, and A. Morse, farmer of Whakatane. It consists in the combination with a steam-pipe system extending round the bottom of the enclosure, of a

branch earned therefrom and arranged to pass horizontally along within the top of the enclosure, such horizontal portion having spraying-nozzles arranged at intervals in its length and directed upwards, and concave baffle or deflector plates arranged one above each of such nozzles.

Casement Stay and Holder—A patent, No. 41921, has been taken out by J. H. Johns, of 415 Swanson Street, Melbourne, which comprises a staple of peculiar construction that is

placed on the • easement-frame, a hooked lever attached to the staple, and an anchored stud on the jamb of the

window that engages the lever to hold the easement or window open and also the hook thereon when the same is shut. 1 : !' i : -Ik!

Concrete Boxing A patent, No. 41,055, has been taken out by P. T. Wash, Crown Hotel, Port Ahuriri, Napier. It consists of tying two sides of a cavity wall by embedding angle-irons in the members thereof and connecting same

by clipping together with angle-iron ties. Also of tying all the members of one course of a cavity wall, both transversely and longitudinally, in such manner as to be impossible for any section to rack.

Water-heater —A patent, No. 40,654, has been taken out by W. B. poninghouse of Papahui, Christchurch. The heater comprises an inner cylinder and an, outer casing arranged concentrically and separated by a narrow water-space, which is connected to the ordinary hot-water-supply pipe. The top of the cylinder is dome-shaped, and has an uptake for the escape of the waste gases of combustion, while

the top of the casing is dished, and the uptake passes through same. ■ A considerable space is provided between the top of the cylinder and the top of the casing, an annular baffle-plate with a series of holes near its periphery being ntted in said space. Outside the casing the dished top is filled with asbestos and [or] fireclay or the like to conserve heat, ■ .

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