Servicing projection equipment (1932)

Page scan 000165 from Servicing projection equipment

Record Details:

Title:
Servicing projection equipment
Date:
1932
Publisher:
New York : Mancall Publishing Corp.
Volume:
Servicing projection equipment
Leaf #:
000165
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 15, 2024
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FORMULAS 149 Capacity Capacity Litre = .0353 cu. feet Cu. foot = 28.32 litres Litre = .2642 gallon (U.S.) Gallon = 3.785 litres Weight Weight Gram = 15.423 grains Grain = .0694 gram Gram = .0353 ounce Ounce = 28.34 grams Kilogram = 2.205 lb. Pound = .454 Kilogram FORMULAS Thermometer Reading To convert CENTIGRADE to FAHRENHEIT : Multiply by 1.8 and add 32 To convert FAHRENHEIT to CENTIGRADE : Subtract 32 and then divide the result by 1.8. Electrical (For simplicity in use by those who have not had much practice in electrical calculations, no contractions or abbreviations are used.) To Find Horsepower of Work performed by electric current : Multiply figure representing number of volts by figure representing number of amperes and divide the result by the figure representing number of watts equivalent to 1 horsepower, which is 746. (Volts multiplied by amperes ; divide result by 746) To Find Amperes : Divide number representing volts by figure representing resistance expressed in ohms. (Volts divided by Ohms = Amperes) To Find Resistance in Ohms : Divide number expressing volts by number expressing amperes. (Volts divided by amperes = ohms)