Paper-Cutting Machines Part 7

37. How is the paper held in place?

38. Describe the mechanism used.

39. What is the relation of the power exerted by the operator to the power obtained at the clamp?

40. What was the characteristic of the first automatic clamp cutting machines, and how have they been improved?

41. Describe the cutting stick and its subst.i.tutes.

42. What is the back gage, and how does it work?

43. Mention some improvements which have been made on the back gage.

44. How is the distance of the back gage read in hand-operated gages?

45. Describe an appliance for reading the movement of a back gage operated by power.

46. What contrivances are in use for cutting at any time duplicates of a given job?

47. How is the back gage locked?

48. How may piles of different widths be cut at the same time?

49. What device is used on the larger sizes of cutting machines?

50. What special devices have been applied to the back gage to increase production?

51. How is the width of the cut measured?

52. Describe some modern patented s.p.a.cing devices, and tell what they accomplish.

53. What is a clamp face?

54. What is a snake gage?

55. What special contrivance is used for large pamphlets, etc., and for what purpose?

56. What safety devices are required by some states?

57. What five methods of applying power are in use?

58. Give the four great rules for the care of the machines.

59. What advice is given about adjustment, stroke of the knife, pressure of the clamp, use of oil?

60. What is the right time to jog stock, and why?

61. How should you oil the parts above the table?

62. How can you make the stock handle easier?

63. How can you keep stock clean?

64. What wrenches should be used and why?

65. What things should be done periodically?

66. What does a cutter operator need to work with, and how should he care for them?

67. What can you say about belts?

68. How should you care for waste, especially when oily?

69. How should you use oil?

70. What is the best sort of oil?

71. Upon what three things does the character of the cutting depend, and why?

72. How may accidents be prevented?

73. How is time consumed in cutting stock?

74. How can labor saving be accomplished?

75. What safety rule applies to cutting?

76. Why is a sharp knife an economy?

77. How can you keep the machine clean and bright?

78. How should you care for the clamp strap ways?

79. What care should be taken of the friction brake band?

80. How can you prevent rust?

81. How can you keep the gage screw wheel graduation true?

82. Give the four devices which safeguard the knife.

83. What are the things to study in handling stock?

84. What can you say about each of these things?

85. What are the causes of inaccurate cutting when the machine is in good order?

86. What care should be taken in piling sheets?