Definitions * Military drum/field drum: a snare drum with a diameter of 14–16 in and 9–16 in deep, with a wood or metal shell and the two heads stretched by tensioning screws. Source: Internet
They have also been used to stabilize cracking concrete cooling towers by circumferential application followed by tensioning to close the cracks. Source: Internet
One of the pulleys must be designed as a tensioning wheel to avoid slack in the ropes. Source: Internet