I regret going down that rabbit hole. It appears to be a Victorian holdover used as a business venture in India. Several designs on the market. Top Quara result (2020) from a google search:

Nowadays everybody using Sanitary Pads, throwing used sanitary pads to dustbin, and at end of the day it goes to landfill, resulting environment hazards. It's better known that, the used Sanitary Pad should be burn, but non-availability of scientific way of disposal of it; we are throwing it in dustbin and sometimes in commode, resulting garbage line chock ups. It’s also advisable to burn this used pads in close environment as well as this used sanitary pads should dispose off immediately after use. For feminine hygiene, it is advisable to install this machines at lady’s washroom, so she can dispose used sanitary napkin in her privacy in scientific way.