Patent GB-190211787-A (GB)
Title: Improvements in or connected with Heaters for Water or other Liquids.
Inventor: FRIED SIGMUND
Filed: 1902-05-23
Granted: 1903-07-23
Abstract: 11,787. Fried, S. May 23. Water-heaters, gas.-Relates to water and other liquid heaters analogous to geysers, in which the liquid is passed in succession through chambers of relatively small dimensions, the system being supplied from tanks containing floats and heated by gas jets. Fig. 1 shows the arrangement, partly in section, for use as a bath-heater, Fig. 2 the apparatus for regulating the gas supply, Fig. 3 a second form of apparatus for regulating the gas supply, Fig. 5 a plan of the water-tank, its floats, and partitions, and Fig. 7 a vertical section through the mixing-valve. The chambers of the bath heater are shown at 2, Fig. 1, the gas burners at 3, and the water-supply tank with its floats and gasregulating system at 4. Tha float 5 regulates the flow of water to the cold-water compartment 16, and the float 6 the flow to compartment 17. The tube 8 supplies the cold water, and the tube 12 the hot water to the mixing-valves 10,11, one of which may supply the bath, and the other a spray or douche. The tube 9 is connected to the heating- chambers 2, while the pipe 13 may convey the hot water to the place where it is required. From the gas-regulating system, the gas flows by the pipes 14 or 15 to the burners. When the pipe 15 is used, the valve in it may be connected with the mixing-valve so as to make their actions mutually dependent. For regulating the gas, the gasometer 7 and its accessories are employed. The gas enters by the tube 18 and passes to the regulator 24 by the tube 19. The valves 22, Fig. 2, rise and fall with the float 6. On the failure of water from the cock 26 on the falling of the float, the valve 21, shown in its normal position in Fig. 2, closes the passage 27 with the exception of the small hole 28 which serves to keep the burner alight. On the filling of the tank, the float rises and takes with it the valve, which then shuts the passage 27 with the exception of the hole 29. In the second form of regulation apparatus shown in Fig. 3, the gas enters by the tube 30 and passes to the tube 38 when the mercury-sealed valve 32, 33 is raised through its connection with the piston 35, which is depressed on the entry of water due to the sinking of the float 6. The upper mercury seal prevents the flow in the upper direction when the vessel is in its highest position. Gas, however, passes through tapered notches in the tube 33, and is proportioned to the movement of the float and vessel. A low partition having a V-shaped opening divides the compartment 17 into two portions whereby the float falls more rapidly towards its lowest position. To prevent an explosion due to the passage of gas through the bye-pass 28, Fig. 2, after the gas main has been closed and then opened, the gasometer, when in its lowest position, closes the pipe 19, Fig. 1, and is secured by the spring hook 46. To mix the hot and cold water, the valve, Fig. 7, is employed. The cold water enters by the inlet 49 to the cylindrical part 50, which is closed by the slotted cylinder 52. The hot water enters at 51 and passes to the interior 53, which is closed above by the cap 54. When the part 52 is raised slightly, the cold water passes through the notches 56 and enters the chamber 48. When the valve is raised so as to withdraw the cap from the lower casing, the hot water commences to flow. At the same time, the admission of cold water is checked by the part 52 which is unslotted at its lower part. The hot and cold water flow in parallel streams, but the direction of the mixture is reversed as it leaves the upper chamber 48, thus effecting a complete mixture.