F. H. Richardson's bluebook of projection (1942)

Page scan 000369 from F. H. Richardson's bluebook of projection

Record Details:

Title:
F. H. Richardson's bluebook of projection
Date:
1942
Publisher:
New York : Quigley Publishing Company, Inc.
Volume:
F. H. Richardson's bluebook of projection
Leaf #:
000369
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:
July 11, 2024
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THE LIGHT SOURCE 23. What effect will impurities in a carbon have on illumination? 24. What are the harmful effects of moisture? 25. Where should carbons be stored? 26. How many spare carbons should be carried in stock? 27. What precautions should be taken when the theatre changes its brand of carbons? 28. Is it essential that the carbons match the amperag 29. What will be the effect of an oversized positive carbon? 30. What are the advantages of a small negative carbon tip? 31. What is meant by a carbon "spindling"? May it occur to both carbons simultaneously? 32. What causes spindling? 33. If your^ carbons are not overloaded hut spindle, what is the first thing that demands your attention? 34. State the effect of positive carbon spindling. Of negative carbon spindling. What is "penciling"? 35. Does spindling tend to injure the metal parts of high intensity lamps? Inspection of Carbons, page 368 36. What requires special attention in newly purchased carbons? 37. What is imoortant in regard to carbon con 38. Are small cracks running lengthwise in low intensity carbons harmful? 39. What about circumferential cracks? 40. What are carbon savers and what is the advantage of using them? 41. What is a mushroom tip and what causes it? 42. Do properly stored carbons suffer any harm because of age Proper Carbon Combinations, page 370 43. What size carbons must be used for different types of equipment of all amperages? 44. Why are optical devices included in the carbon arc lamp? 45. Why is a carbon "feeding" mechanism necessar\ ? 46. What is meant by "striking the arc"? 47. What is a "dowser"? 48. What are the requirements of the arc lamp with respect t<ยป ventilation ?