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A platform for research: civil engineering, architecture and urbanism
Rock bolting devices
Roc-Plate is new form of rock bolt plate designed to correct for angularity of rock bolts that cause erratic torque wrench reading, low bolt tension and broken rock bolts; Roc-Washer is cupped and hardened steel washer to overcome effects of friction and galling between rock bolt plate and rock bolt nut; Roc-Clamp is modification of Roc-Plate, that when combined with lateral rock bolts or steel rods, makes very flexible, strong and inexpensive roof-tie; Roc-Tensor or Visual Tension Indicator shows tension in rock bolt at glance. (See also - n 6667 May 31 1963 p 534-5)
Rock bolting devices
Roc-Plate is new form of rock bolt plate designed to correct for angularity of rock bolts that cause erratic torque wrench reading, low bolt tension and broken rock bolts; Roc-Washer is cupped and hardened steel washer to overcome effects of friction and galling between rock bolt plate and rock bolt nut; Roc-Clamp is modification of Roc-Plate, that when combined with lateral rock bolts or steel rods, makes very flexible, strong and inexpensive roof-tie; Roc-Tensor or Visual Tension Indicator shows tension in rock bolt at glance. (See also - n 6667 May 31 1963 p 534-5)
Rock bolting devices
Min J
Mining Journal ; 260
1963
2 pages
Article (Journal)
English
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