·303–inch Vickers Gun.
Explanation of Plates IV and V.
Similar numbers indicate corresponding parts in all the plates.
1. Casing, barrel. 2. Tube, steam. 3. Bracket, foresight. 4. Gland. 5. Casing, breech. 6. Cover, front. 7. Cover, rear. 8. Sight, tangent. 9. Bar, trigger. 10. Lock, rear cover. 11. Rear-crosspiece. 12. Lever, firing. 13. Lever, trigger bar. 14. Catch, safety. 15. } 16. } Plugs, screwed. 17. Protector, screwed, condenser boss. 18. Plug, cork. 19. Guide, front barrel bearing. 20. Crosshead. 21. Cams, right and left. 22. Steps of cams, right and left. 23. Catch, front cover. 24. Pin, screwed, joint cover. 25. Pin-T, fixing, rear-crosspiece. 26. Pin, screwed, fixing, crank handle. 27. Slides, right and left. 28. Roller. 29. Pin, screwed, joint, rear-crosspiece. 30. Bracket, check lever. 31. Lever, check. 32. Bracket, elevating joint. 33. Stop, mounting. 34. Plate, bottom, breech casing. 35. Shutter, sliding. 36. Hooks of front cover catch. 37. Hole for keeper pin, front cover catch. 38. Lever of catch, front cover. 39. Grooves in front cover catch to clear “36.” 40. Plunger, front cover catch. 41. Bridge, rear cover. 42. { Spring tangent sight. { Piston „ „ 43. Grooves in rear cover for ribs on “5.” 44. Ramps, rear cover. 45. Spring, rear cover lock. 46. Spring, trigger bar. 47. Lug on trigger bar for “46.” 48. Base of tangent sight stem. 49. Hooks of rear cover lock. 50. Lug on rear cover lock for “45.” 51. Slot in trigger bar for “86.” 52. Lug on trigger bar for “13.” 53. } Thumbpiece, sliding shutter catch. 54. } 55. Plunger, sliding shutter catch. 56. Arms of rear-crosspiece. 57. Grips, rear-crosspiece. 58. Pawl, firing lever. 59. Spring, safety catch, with piston. 60. Pin, screwed axis, safety catch. 60A. Finger grips, safety catch. 61. Pin, screwed, axis, firing lever. 62. } Thumbpiece, firing lever. 63. } 64. Pin, keeper, check lever. 65. { Piston, check lever. { Spring, „ „ 66. Recess in check lever for “65.” 67. Barrel. 68. Casing, lock. 69. Plate, side, right. 70. Crank. 71. Handle, crank. 71A. Tail of crank handle. 71B. Knob of crank handle. 72. Rod, connecting. 72A. Stem of connecting rod. 73. Fusee. 73A. Chain, fusee. 74. Spring, fusee. 74A. Hook, fusee spring. 75. Box, fusee spring. 75A. Screw, adjusting, fusee spring. 76. Block, feed. 77. Cannelure in “67” for asbestos packing. 78. Trunnion block, barrel. 79. Lock. 80. Levers, side (pair). 81. Socket of side levers for “72A.” 82. Extractor. 83. Gib. 84. Spring, gib. 85. Cover, gib spring. 86. Trigger. 87. Lever, extractor, right. 88. Tumbler. 89. Spring, lock. 90. Pin, firing. 91. Sear. 92. Spring, sear. 93. Flanges of lock casing. 94. Interruptions in flanges of lock casing. 95. Slots in lock casing for “99.” 96. Bearings on lock casing for “80.” 97. Upper extractor stop of lock casing. 98. Bent of extractor lever for “80.” 99. Lugs on side levers for “95.” 100. Bush, axis, side levers. 101. Pin, split, keeper, bush, axis, side levers. 102. Horns of extractor. 102A. Grooves in extractor for “79.” 103. Shoulders of extractor for “87.” 104. Grooves in extractor for side plate springs. 105. Hole in extractor for “90.” 106. Recess in extractor for “83.” 107. Pin, axis, trigger. 108. Pin, axis, tumbler. 109. Key of pin, axis, tumbler. 110. Projection on firing pin for “89.” 111. Lever, top, feed block. 112. Lever, bottom, feed block. 113. Pins, split, fixing, top and bottom levers, feed block. 114. Stud of top lever for feed block slide. 114A. Slide, feed block. 115. Pawl, top, feed block, rear. 115A. Thumb grips of “115” and “116.” 116. Pawl, top, feed block, front. 117. Spring, top pawls, feed block. 118. Pawls, bottom, feed block (pair). 119. Pin, axis, bottom pawl, feed block. 120. Finger plate of bottom pawls, feed block. 121. Spring, bottom pawls, feed block. 122. Cup, muzzle attachment. 123. Casing, outer, muzzle attachment. 124. Cone, front, muzzle attachment. 125. Gland, muzzle attachment. 126. Screw, clamping, cup, muzzle attachment. 127. Disc, muzzle attachment. 128. Vent, bullet, muzzle attachment.
Plate IV.
VICKERS GUN.
Plate V.
VICKERS GUN.
VICKERS LIGHT MACHINE GUN.
The principal features are as in Maxim with the following exceptions:—