s bucket from an upright orientation to a horizontal orientation the assembly consists of protrusions from the worker 39 s bucket and a rotatable latch plate for selectively engaging and disengaging the protrusions application_number US 5777587 A description in the preferred embodiment of the invention depicted in the drawings wherein like reference numerals designate corresponding parts throughout the several views a worker 39 s bucket is designated generally at 10 the workers 39 bucket 10 is upwardly open to accommodate a worker and is preferably formed of a dielectric material for example reinforced plastic on the rear side of the worker 39 s bucket 10 an integral vertical channel 11 is formed by parallel wall protrusions 12 secured rigidly inside the channel 11 is a retainer plate 13 which is secured in the channel 11 by bolts 14 extending through wall protrusions 12 into side flanges 13a provided on retainer plate 13 referring to fig1 and 2 a bucket supporting mounting bracket 20 is mounted in a shaft 23 at the outer end of an aerial boom not otherwise shown the mounting bracket 20 generally comprises side plates 21 a rear wall 24 and lateral walls 22 the mounting bracket 20 is mounted on the shaft 23 at the outer end of the aerial boom by a tubular weldment 25 held captive between lateral walls 22a and 22b weldment 25 is keyed to a piston rod not.