The "Thorscar" generator of this firm comprises an equalising gasholder, the gas-space of the bell B of which is reduced by conical upper walls. When the bell descends and this lining enters the water in the tank A the displacement of water is increased and its level raised until it comes above the mouths of the pipes E, through which a portion then flows to the generators D. The evolution of the gas in the latter causes the bell to rise and the conical lining to be lifted out of the water, the level of which thereupon falls below the mouths of the pipes E in consequence of the reduced displacement of the bell. The supply of water to the generators is thus cut off until the bell again falls and the level of the water in the tank is raised above the mouths of the pipes E. The generating chambers D are provided with movable cages F in which the carbide is arranged on trays. The gas evolved travels through a scrubbing-box G containing charcoal, and the pipe J with drainage-pipe P to the water-seal or washer K inside the holder, into which it then passes. The outlet-pipe for gas from the holder leads through the condensing coil L immersed in the water in the tank to the condensed water-trap N, and thence by the tap Q to the supply-pipe. The generating chambers are water-jacketed and provided with gauge-glasses H to indicate when recharging is necessary, and also with sludge-cocks M. The object of the displacement cone in the upper part of the bell is to obtain automatic feed of water to the carbide without the use of cocks or movable parts. There is a funnel- shaped indicator in front of the tank for regulating the height of water to a fixed level, and also an independent purifier, the purifying material or which is supplied under the proprietary name of "Thorlite."
(2) Non-automatic; water-to-carbide; "drawer."
This generating plant, the "Thorlite," comprises a water-tank A from which water is admitted to the drawer generating chambers B, one of which may be recharged while the other is in operation. The gas evolved passes through a seal C to the gasholder D, whence it issues as required for use through the purifier E to the supply-pipe. For the larger sixes a vertical generating chamber is used. The purifier and purifying material are the same as for the automatic plant of the same firm.
Maker: THE MANCHESTER ACETYLENE GAS CO., LTD., ACRE WORKS, CLAYTON, MANCHESTER.
Type: Automatic; water-to-carbide; "drawer."
The plant made by this firm comprises an equalising gasholder A from the tank of which water is supplied to generating cylinders B placed at the side of the tank, the number of which varies with the capacity of the plant. The cylinders receive tray carbide-containers divided into compartments perforated at different levels so that they are flooded in turn by the inflowing water. A weight C carried by a chain D from one end of a lever E pivoted to the framing of the gasholder is supported by the bell of the gasholder when the latter rises; but when the holder falls the weight C, coming upon the lever E, raises the rod F, which thereupon opens the valve G, which then allows water to flow from the gasholder tank through the pipe H to one of the generating cylinders. When the carbide in the first cylinder is exhausted, the water passes on to a second. One generating cylinder may be recharged while another is in action. The rising of the holder, due to the evolved gas, causes the bell to support the weight C and thus closes the water supply-valve G. The gas evolved passes through vertical condensers J into washing- boxes K, which are placed within the tank. The gas issues from the washing-boxes into the gasholder bell, whence it is withdrawn through the pipe L which leads to the purifier. Puratylene is the purifying material ordinarily supplied by this firm.
Maker: R,. J. MOSS AND SONS, 98 SNOW HILL, BIRMINGHAM.