Repository: UIHistories Project: Board of Trustees Minutes - 1872 [PAGE 40]

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MECHANICAL LABOEATOEY. The plan* shows the arrangement of the Mechanical Laboratory, its rooms, machinery, tool cases, benches, etc. The draughting and class room is in the lower story of the tower ; O O, small rooms for the storage and safe keeping of bench and hand tools 5 E in the paint room is a small room for paints, oils, etc. In the Boiler Room, T is a Boot's sectional safety boiler of 33 horse power, which supplies steam for the engine, and for warming the whole building. The forge and furnaces U U are in this room, and also a moulder's bench with sand and the appliances for making brass, iron and other castings. At Z are the pumps, and S til well heater and lime extractor for supplying the boiler with water. In the Machine Shop, A is the engine, of 16 nominal horse power, but capable of working to 30 horse power. It is regulated by a variable cutoff, of entirely new design by Professor Eobinson, and very simple construction; one eccentric giving positive movements, without noise, to two valves by means of a link and two valve rods. It was made entirely by the students of the University, with the exception of the balance wheel. A Eichard's indicator, of the most approved construction, is fitted for attachment at any time to the cylinder. The main line of shafting is cold-rolled iron, 72 feet long, and furnished with the best iron pulleys and hangers. At B is a Putnam engine lathe, of 20 inches swing, by 10 feet bed. At D is an Ames lathe, of fifteen inches swing, by 6 feet bed. At C is a Putnam planer for Iron, planing 5 feet long. At E E are two hand lathes, swinging about 10 inches by 4 feet, which were made by students. At F F F is a stretch of about 100 feet of 4 by 18 inches oak plank benches, fitted up with vises, drawers, tool cases, etc. The steam heating coils of this room are under the benches, extending their wiiole length. At Gr is the grindstone. In the Pattern Shop are four complete sets of tools, benches and vises, each sufficient for any pattern maker. This room has also a small buzz-saw for the light work of the pattern room. In the Carpenters' and Wood Workers' room, H is a Whitney planer, I a moulding machine, J a tenoning machine, M a jig-saw, O a cuttingoff-saw, S a buzz-saw. There is also a mortising machine, a turning lathe, and about 10 work benches and vises.

APPARATUS.

This school is provided with plates and a cabinet of models for illustrating mechanical movements and elementary combinations of mechanism. This collection is rapidly increasing by our own manufacture, and

* The cut for this place should have appeared here, but was not furnished the printer.