. The practical telephone handbook and guide to the telephonic exchange . ate Cubic Contents ApproximateWeight Feet Inches Inches Cubic feet Cwts. 24 5 H 4-6 23 26 5 6| 53 265 28 5 7 6 3 30 5 7i 7 35 32 5 7i 7-5 3-75 34 5 7* 8-5 4-25 36 5 7| 9-5 4-75 38 5 VI 105 525 40 5 8 12 6 45 5i 8| 15 75 50 5i 9* 19 95 55 5| 10i 24 12 60 H 11 29 14-5 65 6 12 35 17-5 Stout Poles Length Diameter at Minimum Diameter 5 feet from Butt end Approximate Cubic Contents Approximate Weight Feet Inches Inches Cubic feet Cwts. 24 5* 8 6-3 315 26 5| H 7 35 28 6 8| 8-6 43 30 6 9 10 5 32 6i 9i 112 5-6 34 H 9|
. The practical telephone handbook and guide to the telephonic exchange . ate Cubic Contents ApproximateWeight Feet Inches Inches Cubic feet Cwts. 24 5 H 4-6 23 26 5 6| 53 265 28 5 7 6 3 30 5 7i 7 35 32 5 7i 7-5 3-75 34 5 7* 8-5 4-25 36 5 7| 9-5 4-75 38 5 VI 105 525 40 5 8 12 6 45 5i 8| 15 75 50 5i 9* 19 95 55 5| 10i 24 12 60 H 11 29 14-5 65 6 12 35 17-5 Stout Poles Length Diameter at Minimum Diameter 5 feet from Butt end Approximate Cubic Contents Approximate Weight Feet Inches Inches Cubic feet Cwts. 24 5* 8 6-3 315 26 5| H 7 35 28 6 8| 8-6 43 30 6 9 10 5 32 6i 9i 112 5-6 34 H 9| 125 6-25 36 6J 10 14 7 38 6* m 15 7-5 40 6* 10| 17 8-5 45 6| 1H 21 105 50 7 12J 28 14 55 n 13 33 16-5 60 n 13| 40 20 65 H 14i 45 22-5 70 7* 14f 50 25 75 8 15|- 55 27-5 80 81 16* 65 325 85 8* 15| 75 37-5 34o PRACTICAL TELEPHONE HANDBOOK Earth Wiring.—The same figures also show the earth wireof No. 8 galvanised iron, which is made into a coil at thebottom of the pole, stapled rip the back, then screwed underthe nnts and washers of the arm bolts, and finally terminated.
Size: 2022px × 1236px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjecttelephone, bookyear19
