Paragraph 20
Where a kibble is used in any shaft or staple-pit in which persons are or may be underneath the kibble, no person shall signal it away unless he is satisfied that—
(a)
no loose mineral is carried above the level of the rim;
(b)
tools, equipment or other materials for use or used in the mine are not loaded together with mineral;
(c)
when things which project above the rim are carried, they are securely fastened to the bow or chains supporting the kibble;
(d)
nothing capable of causing injury is adhering to the outside of the kibble; and
(e)
when the kibble is being raised, it is in line with the pulleys and carefully steadied.