Recent Patents

Progress, Volume XI, Issue 11, 1 July 1916, Page 682

Recent Patents

Weatherproof Roofing Tile. —A patent No. 36717 for a waterproof Roofing Tile has been taken out by J. S. Rose and A. ,T. Warren of Christchurch. The tile contains a con-

coaled continuous double watercheck. The check starts on the extreme edge of tile and continues across the top and down the side unbroken.

Metal Sections for Window Sash. —A patent No. 37,320 has been taken out by Alfred Woolnough of Dunedin comprising a main web piece, a glazing-strip projecting from said main web piece, and flanges projecting from the said main web piece in an opposite direction to the said glazingstrip, and an extending flange produced from one of the said flanges in a different plane, the two sections being used

in combination with an L piece to construct a casement. A baffle-plate may in certain circumstances be employed, and the invention also comprises some other features.

Concrete, etc., Pipe Making Mandrel. — No. 36,264 by Joseph E. Dixon of Warwick Eoad, Hastings. According to this invention, the mandrel is made in two partsa body and a head. The barrel of the pipe is formed around the body part of the mandrel, and the faucet is made by means of the head. The body part is provided with a dowel adapted to fit into a hole formed in the head. To make the faucet of the pipe, the head is lowered down into position upon the body part of the mandrel, and when the pipe is

completed the head is removed by means of a chain passing over a pulley. The body part of the mandrel is' then lowered through the floor by means of a rack and pinion. The periphery of the head has swellings for forming the faucet - , J infill