CAB129-45 — Page 125

Page 125 (c) Lathes of work diameter capacity (swing-over carriage) of from 18 in. (457 mm.) to 36 in. (914 mm.) and with distance between centres exceeding 18 ft. (5,486 mm.).

4. Vertical turret lathes (turret-type head, not rotating table) of work diameter capacity exceeding 39 in. (991 mm.).

5. Chucking and facing lathes of work diameter capacity exceeding 96 in. (2,438 mm.) or with travel of carriage exceeding 7 ft. (2,134 mm).

6. Turret lathes of chuck capacity exceeding 24 in. (610 mm.) or of bar capacity exceeding 3 in. (76 mm.).

7. Milling machines of general purpose and universal types, horizontal and vertical, any of whose specifications exceed the following limits:

(a) Following rectangular table dimensions:-

(i) Maximum length 48 in. (1,219 mm.). (ii) Maximum width 20 in. (508 mm.).

(b) Following round table dimensions:-

(i) Maximum table diameter 24 in. (610 mm.).

(ii) Maximum work diameter capacity 32 in. (813 mm.)

8. Planer milling machines of distance between housings exceeding 4 ft. (1,219 mm.) or of length of platen exceeding 12 ft. (3,658 mm.) or of number of heads exceeding three.

9. Forging hammers of all types, of falling weight. exceeding 31⁄2 tons (3.556 metric tons).

10. Forging machines of bar stock diameter or equivalent cross section exceeding 32 in. (89 mm.).

11. Mechanical presses of an effective operating pressure exceeding 1,000 tons (1,016 metric tons).

12. Hydraulic presses of an effective operating pressure exceeding 1,000 tons. (1,016 metric tons).

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G.R.