Headframe


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headframe

[′hed‚frām]
(mining engineering)
The frame at the top of a shaft, on which is mounted the hoisting pulley. Also known as gallows; gallows frame; headstock; hoist frame.
The shaft frame, sheaves, hoisting arrangements, dumping gear, and connected works at the top of a shaft. Also known as headgear.

Headframe

 

a structure that houses mine-shaft hoisting equipment. Headframes are differentiated according to the materials from which they are made (wood, metal, reinforced-concrete, or mixed types) and the number of hoisting machines (one, two, or three) and their arrangement relative to the shaft (parallel to the shaft, at an angle, or in the headframe). Metal and wooden headframes, usually of a tent-shaped system, are a three-dimensional construction in the form of a truncated pyramid with sloping walls. Reinforced-concrete headframes are usually erected in the form of a tower 80-100 m high, in which the hoisting machinery is located.

REFERENCE

Andreev, V. E. Proektirovanie, stroitel’stvo i ekspluatatsiia bashennykh koprov. Moscow, 1970.
References in periodicals archive ?
The headframe for the main shaft serving the underground operations can be seen in the background.
Coffee and cream gets a hot little kick from this liqueur, but the bourbon-based cream is at its best in Headframe's signature cocktail: The Dirty Girl.
With the city's rich culture and history in mind, the McKees opened Headframe Spirits so friends could gather together to drink some spirits and tell old stories about Butte ...
Cllr Steve Kay observed: "It's better to have a very slim pole almost in the trees than extending the size and headframe of the other mast."
The City of Cobalt Mining Company received permission to erect a headframe that encroached partly on Miller Avenue; and the town had no objections to the Nancy Helen mining on city roads as long as the company did not interfere with or endanger public travel.
They climbed up the pit headframe -the structure with the wheel that winds the workers down to the coalface -and blocked it with girders so we couldn't go down to work.
The joint venture's shaft contract, following a 45 m presink, is to sink to a depth of 1,090 m at a 6.4 m diameter, construct the headframe, 14 off-shaft station excavations and rock loading facilities and two 180 m deep ventilation shafts.
A prow-shaped battlement of concrete and brick, the Overlook is perched on the easternmost edge of the Hill, between the Berkeley Pit and the Yankee Doodle Tailings Pond, offering a bird's-eye view of the Granite Mountain headframe.
The flywheel on the headframe was an oversized mutation of a child's pinwheel, its blades whirling like stylized knives high over the cage that sank abruptly through the stage floor - "Meat coming down!" - to transport the miners to the seams.
There is a headframe and holding pond, equipment shed, maybe a Cat or backhoe.
They would note the same basic elements at each site: the entrance to the mine (often with a headframe to house the hoist), the mill where valuable ore was at least partially separated from the worthless rock, a dump where unmarketable debris was discarded, a general store or business district, an owner's or manager's mansion, supervisors' homes, workers' cabins, and perhaps also a church or school.
Replacement (in the machine room, in the basement, in the headframe and in the well) of all the electric cables force and control of the extraction, the sensors, commands and signaling, of the whole of the control system control regulation (cabinets, plcs, control room), 5 kv cubicles, 478 kw dc motor power supply cabinets of the koepe pulley, electrical distribution cubiclesmotorization of east and west landing doors