shaft signaling

shaft signaling

[′shaft ¦sig·nəl·iŋ]
(mining engineering)
The transmission of visible and audible signals between the onsetter or hitcher at the pit bottom and the banksman or hoistman at the pit top.
References in periodicals archive ?
The scope of the contract includes the provision of employees foreseen to supervise the conducted electrical works and to carry out works related to comprehensive servicing and operation, basic measurements, construction and decommissioning of low and medium voltage machinery, equipment and installations on the surface and bottom of the mining plant together with the area near the shafts peripheral, including, among others: - 110 / 6kv substation, - main ventilating fan stations, - winding machines, - medium and low voltage distribution, - compressors, - main pumping station and water pumping station at the bottom of the plant, - transport systems, - shaft signaling.