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278 RICHARDSON'S BLUEBOOK OF PROJECTION
33. How closely are intermittent parts fitted together?
34. What parts make up the standard intermittent movement?
35. Explain the action of an intermittent movement.
36. What is meant by an intermittent movement being "on the lock"?
37. Is the speed of the intermittent sprocket unvarying from time of starting to time of stopping?
38. By what process are intermittent parts finished?
39. What parts of modern intermittent movements are hardened ? Why are intermittent sprockets no longer hardened ?
40. How is any inaccuracy in the intermittent movement that effects the intermittent sprocket magnified on the screen ?
Intermittent Movement Lubrication, page 299
41. What is required to keep the intermittent movement properly lubricated ?
42. How is the time for draining oil wells determined?
Intermittent Sprocket, page 299
43. What is the accepted speed of intermittent action?
44. How fast is film fed down to and taken away from the intermittent sprocket ?
45. How is the intermittent action of the film made possible?
46. Describe the action of the upper and lower loops and the film as a whole.
47. How often and in what manner should the intermittent sprocket teeth be examined?
Lost Motion in Intermittent Sprocket, page 302
48. How closely must the cam be adjusted to the star?
49. What is the test for correct adjustment between star and cam?
Replacement of Intermittent Sprocket, page 302
50. What happens if the sprocket is too tight or too loose upon its shaft ?