I have a toilet Lock with a flag mechanism that reads 'VACANT' or 'ENGAGED'
IT IS A 'king's patent no 73500 which dates it to (I think) 1873/1874 ten years before Ashwell's patent of 1884. I think the ashwells patent must mean the mechanism and not the 'vacant engaged' Mike H.
Ashwell's Patent Toilet Lock
Date Added: 17/10/2009 by Ohek Idunnit