Caption: Engineering Open House Guide - 1910
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The Federal Vacuum Cleaner Outfit contains in addition to the machine itself the following rticles: I. S w e e p e r f o r r u g s a n d 5. Stair-edge cleaner. 6. Tuft Cleaner. carpets. 2. 5-inch tool for draperies and 7. Clothes Brush. 8. Massage Tool. curtains. 3. 3-inch tool for cleaning fur9. Jointed Handle (with curved and straight entensions.) niture. 4 10-inch Brush for hardwood 10. 15 feet of cloth-covered, wireinserted vacuum hose. floors or walls. 1 1 . 2 0 feet of Lamp Cord with plugs. PROGRAM Visitors will please follow the program as cl« ely as possible. As the space is limited it is only by cooperation wit: the management in this respect that a jam can be avoided and the full benefit of the show be obtained. FIRST 1. I. FLOOR Leave your wrap- h Free check room to left of entrance. Calibration Laboratory. (Opposite check ro A. High Frequency Exhibit. A frequency of 50,000 cycles per second will be available an at this high frequency thousands of volts may he handled v. b impunity. Lamps will be lighted by passing the current t u the body and vacuum tubes made to glow. I. W. Fiske and T. P. Wi erto B. Static Machine. Demonstration of the advantages of lighten: g r The static motor is run by the lightening discharge. \ C. Julius Suspension Galvanometer. Mirror is at the center of gyration, consequently vibra in the building have no effect upon the accuracy of the reading D. K. Welding transformer. A. R. Anderson. Ultra Violet Rays. The high grequency of ultra violet rays make tkem perceptable to the eye but their effect is shown by var as chemu These rays effect photographic plates which provt ey light waves. They will not pass thru ordinary gl ss. A R. >*T P When YlfCk complete as described above, for (t> | A A i \ / \ l I C c j either direct or alternating current « p l ^ r U . U U whether 3. ordering be sure to specify voltage and state direct or alternating current is to be used. FOR SALE BY 4. Battery Room A. Electric Furnace. B. Batteries. This battery has a capacity of 24<» amper< High T e n s i o n R o o m A. Corona Sign. B >ui Walker & Muliken Champaign. Illinois (Opposite Battery IN >m Breaking Down of Insulator* J. 1). Stirlii 1« I M
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