Repository: UIHistories Project: Dedication - New Chemistry Building [PAGE 55]

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An electric elevator facilitates the distribution of supplies to all floors. THE WORK SHOPS are three in number. The mechanician's shop is equipped with lathe, power-saw, emery wheels, drill press, oxyacetylene outfit and tools needed for the manufacture and repair of apparatus. The glass blower's equipment includes 13 blowpipes, a small lathe, and a motor for grinding glass a p p a r a t u s ; a small laboratory is also equipped for instruction i n glass blowing. The plumber's shop contains tools and materials needed for making repairs to the plumbing of the building. F I R E P R O O F VAULTS AND THE ELEVATOR are available from all floors. DISTILLED WATER is produced by two special stills designed by Professor Noyes. The new still, located in the attic of the new building, is shown in detail in Figs. 1 to 4. The boiler, Fig. 1, is 36 in. high and 24 in. in diameter and is made of heavy copper. The heating coil A is a VVi*1* copper pipe, 15 ft. in length and connected with the high pressure steam, G is a drain cock, D an 8-in. manhole, C a cons t a n t level valve and B is a glass gauge. The head E is 20 in. high and 8 in. in diameter and contains 8 shelves shown at 0 each with a two-inch opening arranged alternately to allow steam to pass upward. The edge of each shelf is turned u p x/% in.; condensed water runs back into the boiler through a tube, 27, which rises V4 in* above the shelf and extends within Vs in. of the next lower shelf. The head is lined with pure tin and all soldering is done with pure tin. The condenser box, shown in Fig. 3, is 12 in. deep, on the bottom of which is placed t h e 11/4-111. tin condensing tube A B. The end L E is 4 in. higher t h a n the end G F to give proper drainage. The successive partitions from HE t o F G have a space of two inches at alternate ends, while F G is solid. The compartment L H G K is designed as a flue to carry off gases and steam to a ventilator with a strong draft. The sides H G and E F, shown in Figs. 2 and 4, have windows to facilitate the ventilation. 0 and the opening near K are drains. The box L E F K is covered, but the small compartment below F G is open. Feed water enters at Kf through a constant level valve set to give a depth of 8 in. at F G and 4 in. at / / E. As it passes back and forth across the box it is warmed by the condensation within the t u b e (5a)