Sensing mechanism for mine roof bolting apparatus

Details Sensing mechanism for mine roof bolting apparatus Sensing mechanism for mine roof bolting apparatus

1977-03-04

1978-06-27

Waring, Alvin H.

Communications: electrical

Systems

Call station

340421, 299 1, G08B 2100

Patent

active

040978540

ABSTRACT:
The sensing mechanism of the present invention includes a probe electrically connected to a mine roof bolting apparatus and adapted to be embedded within a mine roof to sense any shifting of the apparatus during an operative cycle. The probe is linked to a 360.degree. rotational toggle switch mechanism which controls an alarm means. The probe is pivotably mounted within the roof bolting apparatus and consequently, any effective movement of the apparatus along any direction within a horizontal plane pivotably displaces the probe and actuates the switch mechanism, energizing the alarm. In this manner, personnel are apprised of conditions warranting corrective measures in order to re-position the bolting apparatus or the apparatus may be automatically halted so as to prevent damage from being imparted thereto.

REFERENCES:
patent: 3111655 (1963-11-01), Kotarsky et al.

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