double-drum hoist

double-drum hoist

[¦dəb·əl ¦drəm ′hoist]
(mechanical engineering)
A hoisting device consisting of two cable drums which rotate in opposite directions and can be operated separately or together.
References in periodicals archive ?
The double-drum hoist can now be operated either from the local console or from a remote central hoist room via a fibre optic network connection.
A second hoist was added in a single-drum configuration to operate the service cage, freeing the double-drum hoist to operate both the old and a new skip.