All coal miners lamps in the UK were required to have magnetic locks so they could not be opened underground. Miners lamp lock parts.
It is common for Type6,GR6S and SL.
The lock is in a brass casting on the side of the fuel vessel. The bung fits into a threaded hole at the base of the lock body and it retains the spring and the locking pin sold here. When fitted by us to a lamp the slot on the head is removed so it cannot be unscrewed. These are often drilled out to remove the locking pin. The magnets we sell are placed on the base of the lock body and pull down the spring and pin allowing the fuel filler flap/locking plate to be opened.
The fuel filler flap when closed locks against the standard wires so the lamp cannot be opened. It is held in the lock body by a sprung pin. When you apply the opening magnet to the base of the lock body the pin is pulled down allowing the lock to open. The flap comes with a fixing rivet. This part is common to the majority of Protector Lamp’s with a lock.