MUMBAI, India, Feb. 6 -- Intellectual Property India has published a patent application (202631011035 A) filed by Prasanta Kumar Bhattacharyya; and Pratima Bhattacharyya, Bardhaman, West Bengal, on Feb. 2, for 'an automatic mine cage free-fall arresting safety system.'
Inventor(s) include Pratima Bhattacharyya; and Prasanta Kumar Bhattacharyya.
The application for the patent was published on Feb. 6, under issue no. 06/2026.
According to the abstract released by the Intellectual Property India: "The present invention relates to a modified suspension gear and mine cage safety system for arresting the free fall of a mine cage in the event of detachment of the winding rope. The system comprises a triangular suspension plate connected to the winding rope, a rectangular base plate welded thereto, adjustable screws, tensional springs, lifting wire ropes, and a plurality of fulcrum mechanisms mounted on a modified flat cage roof. Each fulcrum is operatively connected at its rear end to the suspension gear and at its front end to a cage guide arrester selected from clamp holder arresters, claw fork arresters, or roller wheel arresters, depending on the type of cage guide. Upon detachment of the winding rope, the combined weight of the suspension gear, retained spring force, and counterweights produces increased torque on the fulcrums, causing the arresters to grip the cage guides and arrest the free fall of the cage. Simultaneously, transducers actuated by adjustable screws generate visual and audible emergency signals to alert surface personnel. The invention significantly enhances safety in underground mining operations."
Disclaimer: Curated by HT Syndication.
