Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 5 - SURFACE COAL MINES › Subpart T - Slope and Shaft Sinking › Section 77.1908 - Hoist installations; use

Current through July 13, 2024
(a) Where men are
				  transported by means of a hoist and the depth of the shaft exceeds 50 feet, the
				  hoist rope shall be suspended from a substantial hoisting installation which
				  shall be high enough to provide working clearance between the bottom of the
				  sheave and the top of the cage or bucket.
(b) Where men are transported by means of a
				  hoist and the depth of the shaft exceeds 100 feet, temporary shaft guides and
				  guide attachments, or other no less effective means, shall be installed to
				  prevent the cage, platform, or bucket from swinging.
(c) All guides and guide attachments, or
				  other no less effective means, installed in accordance with paragraph (b) of
				  this section shall be maintained to a depth of not less than 75 feet from the
				  bottom of the shaft.
(d) Where
				  crossheads are used, the cage, platform, or bucket shall not be hung more than
				  10 feet below the crosshead.
(e)
				  Where men are required to embark or disembark from a cage, platform or bucket
				  suspended over or within a shaft, a loading platform shall be installed to
				  insure safe footing.
(f) During the
				  development of each slope or shaft, either a ladder or independently powered
				  auxiliary hoist shall be provided to permit men to escape quickly in the event
				  of an emergency.
(g) No person
				  shall be permitted to ride the rim of any bucket or on the top of a loaded
				  bucket.
(h) The number of persons
				  permitted to ride in cages, skips, or buckets shall be limited so as to prevent
				  overcrowding.
(i) Persons shall not
				  be permitted to ride on a cage, skip, or bucket with tools or materials, except
				  when necessary to handle equipment while in transit. Materials shall be secured
				  to prevent shifting while being hoisted.
(j) The speed of buckets transporting persons
				  shall not exceed 500 feet per minute and not more than 200 feet per minute when
				  within 100 feet of any stop.
(k) A
				  notice of established speeds shall be posted in clear view of the
				  hoistman.
(l) Conveyances being
				  lowered in a shaft in which men are working shall be stopped at least 15 feet
				  above such men and shall be lowered further only after the hoistman has
				  received a signal that all men who may be endangered by the conveyance are in
				  the clear.
(m) No skip or bucket
				  shall be raised or lowered in a slope or shaft until it has been trimmed to
				  prevent material from falling back down the slope or shaft.
(n) Measures shall be taken to prevent
				  material from falling back into the shaft while buckets or other conveyances
				  are being unloaded.
(o) Properly
				  attached safety belts shall be worn by all persons required to work in or over
				  any shaft where there is a drop of 10 or more feet, unless other acceptable
				  means are provided to prevent such persons from falling into the
				  shaft.