Page:Municipal Handbook of Auckland 1922.djvu/158

 with the forced draught to the furnaces, also in connection with the feed pumps to boilers, and in driving a vertical steam engine used for power in the adjoining corporation workshops. It was formerly more fully utilised as a complement to the boiler power at the Electricity Power Station before the latter was removed to its present site.

For a great number of years the City's supply of stone for the making and repair of macadamised roads has been principally derived from the Council's Quarry (6¾ acres), which is leased from the Government Prisons Department, Mount Eden.

The machinery installed consists of:

1 Babcock and Wilcox boiler, of 75 hp.

1 Tangye single cylinder steam engine, 14¼ inches diameter by 28 inches stroke.

2 Baxter jaw stone breakers, 20 inches by 16 inches.

1 Set of Baxter granulating rolls, together with the necessary screen conveyors, etc.

1 Air compressor, 14 inches by 12 inches, which supplies the air for the pneumatic drills.

Owing to the uncertain tenure of the lease, the disposition and arrangement of the plant is not as satisfactory as the Council would desire.

Attached to the stone-breaking plant is a large shed, in which are installed a revolving cylinder for