Maker: WM. MOYES AND SONS, 115 BOTHWELL STREET, GLASGOW.
Type: Automatic; carbide-to-water. The "Acetylite" generator made by this firm consists of an equalising gasholder and one or more generating tanks placed alongside it. On the top of each generating tank is mounted a chamber, with conical base, charged with granulated carbide 1/8 to 1/2 inch in size. There is an opening at the bottom of the conical base through which passes a rod with conical head, which, when the rod is lowered, closes the opening. The rod is raised and lowered through levers by the rise and fall of the bell of the equalising gasholder, which, when it has risen above a certain point, supports a counter-weight, the pull of which on the lever keeps the conical feed-valve open. The gas evolved in the generating tanks passes through a condensing chamber situated at the base of the tank into the equalising gasholder and so automatically controls the feed of carbide and the evolution of gas according to the rate of withdrawal of the gas from the holder to the service-pipes. The water in the gasholder tank acts as a scrubbing medium to the gas. The generating tanks are provided with sludge-cocks and a tap for drawing off condensed water. The gas passes from the equalising gasholder, through a purifier and dryer charged with heratol or other purifying material to the service-pipes. The original form of the "Acetylite" generator is shown in elevation and vertical section in Fig. 55. Wm. Moyes and Sons now make it also with a detached equalising gasholder connected with the generator by a pipe in which is inserted a lever cock actuated automatically through a lever and cords by a weight above the bell of the gasholder. Some other changes have been made with a view to securing constancy of action over long periods and uniformity of pressure. In this form the apparatus is also made provided with a clock-work mechanism for the supply of lighthouses, in which the light is flashed on periodically. The flasher is operated through a pilot jet, which serves to ignite the gas at the burners when the supply is turned on to them at the prescribed intervals by the clock- work mechanism.
Maker: THE PHÔS CO., 205 AND 207 BALLS POND ROAD, LONDON, N. Type: Non-automatic; water-to-carbide; drip.
The type "E" generator made by this firm consists of a generating chamber placed below a water chamber having an opening with cap E for refilling. The generating chamber in closed by a door B, with rubber washer C, held in position by the rod A, the ends of which pass into slots, and the screw A'. The movable carbide chamber D has its upper perforated part half filled with carbide, which is pressed upwards by a spring D'. The carbide chamber when filled is placed in the generating chamber, which is closed, and the lever F of one of the taps F' is turned from "off" to "on," whereupon water drips from the tank on to the carbide. The evolution of gas is stopped by reversing the lever of the tap. The second tap is provided for use when the evolution of gas, through the water-supply from the first tap, has been stopped and it is desired to start the apparatus without waiting for water from the first tap to soak through a layer of spent carbide. The two taps are not intended for concurrent use. The evolved gas passes through a purifier containing any suitable purifying material to the pipes leading to the burners.
Maker: ROSCO ACETYLENE COMPANY, BELFAST.
Type: Non-automatic; carbide-to-water
The "Rosco" generating plant made by this firm comprises a generating tank A which is filled with water to a given level by means of the funnel-mouthed pipe B and the overflow O. On the top of the water-sealed lid of the generating tank is mounted the carbide feed-valve L, which consists of a hollow plug-tap with handle M. When the handle M is turned upwards the hollow of the tap can be filled from the top of the barrel with carbide. On giving the tap a third of a turn the hollow of the plug is cut off from the outer air and is opened to the generating tank so that the carbide contained in it is discharged over a distributor E on to the tray N in the water in the generating tank. The gas evolved passes through the scrubber and seal-pot J to the storage gasholder Q. From the latter the gas passes through the dry purifier T to the service-pipe. A sludge- cock P is provided at the bottom of the generating tank and is stated to be available for use while generation of gas is proceeding. The purifying material ordinarily supplied is "Roscoline."
