complished with a judicious use of the forms as without. EXAMPLE OF SIMPLE LABORATORY REPORT COVER. COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK. Electrical Engineering Department. This report is due one week after the date of completion of the experiment in the Laboratory. 1. Title 2. Object of experiment 3. Apparatus employed (Laboratory numbers and ranges of all instruments and apparatus. Names and capacities of all machines) 4. Description of the experiment with observations, curves and conclusions ... ...B. P.... Volts............. Ampe Motor... Phases.... Cycles.......... Alternations.............. Revs. ........Ohms....... Watts Regulation............ % Power Factor...------ DYNAMOTOR. Synchronous Impedance... CORE Drwg. D...... ...I .................................. No. Slots............Size of Slot ............ Punch No............. ........... Ventilating Spaces....... Wide....................Horisontal Ventilating Holes........ Diam. on............ Rad. Net Length of Iron.......Iron occupies.. % of available space Radial Depth. Lbs., or...... Rings.. ........U.S. G............... Diameter......... Net Area 1 --------- Net Area Width of Tooth at Circumference...................................................... Minimum Width of Tooth...... Turns per Coil ......................................................... Mean Length of Turn....... Insulation of Wire..................Insulation of Slot............... .....Insulation of Bar...................Area of Bar.............................................................................. in. ..Conductors per Phase.-----.Amps. per sq. c. m. of Conductor......... Brush End Bearing Journal.................................................... ....Diameter of Shaft in Commutator................ ............... ................ ❤E BUND Diameter............Length Over All..................................... Length of Face.....No of Segments... No. of Sets of Brushes...........Area of Contact of Face... Length Over All..........................................1 Material of Rings.. Drwg... Sheet No. No. of Brush Holders.............. Style of Holder............................... Tension on Brush.. Computations Pg. NOTE--Two watis per square iach is safe. Signed.. $96% DEPARTMENT OF EXPERIMENTAL ENGINEERING-ELECTRICAL LABORATORY. SIBLEY COLLEGE-CORNELL UNIVERSITY. LOADING POLYPHASE ALTERNATOR, PROFESSOR BRACKETT: Professor Norris has not emphasized one thing which might be considered in favor of using standard blanks in laboratory work; that is, the aid they offer the instructor both in checking the observations before the student leaves the laboratory and in correcting the final report on the experiment. When students work without observation forms, it is no unusual thing, especially if the instructors are |