Patent GB-569371-A (GB)
Title: Improvements relating to apparatus for the manufacture of gas
IPC: C10J3/72
Filed: 1943-03-25
Abstract: 569,371. Gas manufacture. HUMPHREYS & GLASGOW, Ltd., and LLEWELYN, D. March 25, 1943, Nos. 4849/43 and 2416/44. [Classes 55 (i) and 55 (ii)] [Also in Group XXIX] Apparatus for gas manufacture comprising a small compensating holder connected to a water-gas generating plant and an exhauster and valve means for varying the flow of watergas to the exhauster in accordance with the position of the holder bell, is characterized by means whereby a valve controlling the flow of water-gas to the exhauster is automatically set to suit the average rate of water-gas production by the rise and fall of the small compensating holder bell. As shown, gas passes from the water-gas generator through the pipes g, g<1> to the exhauster, a butterfly valve h being provided in the pipe g<1>. A connection is provided between the pipe g to the compensating holder f, the bell of which has a prong p attached to which is a link 6 having a slot 5 into which projects a pin 4 on an arm h<1> on the valve spindle. The other arm h<2> on the valve spindle carries a weight in the form of a vessel 1 divided into compartments by a transverse partition 2 having an orifice 3, both compartments containing mobile material such as liquid or pellets. When the bell rises or falls beyond certain limits, the valve is opened or closed and the weight vessel so tilted that liquid or pellets flow from one compartment to the other and alter the centre of gravity of the weight so that when contact between the end of the slot and the pin ceases, the weight takes up a slightly different position and holds the valve in a slightly altered position. After a number of such adjustments, the weight and valve settle down to a position in which a steady flow of gas corresponding to the average rate of gas production results. In a modification, the weighted arm h<2> is mounted on an extension of a member pinned to the valve spindle and is pressed towards the valve spindle by an adjustable spring. The position of the arm h<2> relative to the arm h<1> is governed by an adjustable slipping clutch which may comprise a spring-pressed ball carried by a member opposite a circle of recesses in the face of arm h<2>. A further adjustment may be obtained by attachment of the end of arm h<2> to a spring whose tension can be adjusted by a screw. In this case, the weight may be dispensed with. In a further modification, the arm h<1> is connected by a link to a balanced lever, to the other end of which is attached an adjustable counterbalance weight in the form of a chain. The other end of the chain is attached to a friotionally held bobbin coaxial with a sprocket wheel adapted to be turned in opposite directions to wind more or less of the chain on the bobbin by two free-wheel pawls on a rod depending from the prong on the holder bell. The valve is positively closed or opened as the bell reaches its lower or upper position by engagement of the prong with tappets on a rod extending from the lever. The bobbin may be mounted on a rod depending from the prong. Specification 560,684 is referred to.