Patent GB-190214366-A (GB)
Title: Improvements in Apparatus for Distributing Sewage in Sewage Tanks and Withdrawing the Effluent therefrom, and in Apparatus for Distributing Sewage and other Liquids over Bacteria Beds and other Areas.
Inventor: CANDY FRANK
Filed: 1902-06-25
Granted: 1903-05-21
Abstract: 14,366. Candy, F., and Candy, E. R. June 25. Sewage and foul waters, treating; bacteriological processes ; filtering ; settling.-For distributing sewage in tanks, bent or inclined pipes C, Fig. 1, with screwed adjustable inlets C<1> and spreading - hoods C', are employed. Similar pipes are fitted at the collecting-ends to withdraw the effluent without disturbing the scum. Apparatus for use in intermittently supplying a number of bacteria beds with equal quantities of liquid is shown in section in Fig. 3. The sewage or other liquid is delivered from the central basin L by radiating arms n, revolved by the issuing liquid, into an annular chamber divided into compartments F. The radiating arms may be fixed. Excess flow of liquid may be dealt with as described in Specification No. 517, A.D. 1901, or by the arrangement shown in Fig. 5. The compartments Fare provided with outlets delivering on to the bacteria beds, or into storage tanks with the automatic discharge apparatus described in Specification No. 7238, A.D. 1902. A common annular channel J, communicating with the various compartments by pipes and valves K<1>, is provided in order that any compartment may be put out of operation and the liquid therein passed to the remaining compartments. A travelling distributer for use on rectangular beds consists of a pipe, trough, or other distributer mounted on a motor-propelled carriage with toothed wheels running upon toothed rails. The liquid is delivered to the trough by siphons from the supply channel, and adjustable strikers are arranged to automatically reverse the motor and control the siphons. The troughs are preferably triangular in form, and have incurved flanges at the top. Discs or plates, either fixed or rotary, may be arranged close to the outlet perforations of the troughs to spray the liquid. Fig. 5 shows the arrangement for dealing with an excess flow in a revolving distributer. When this occurs, the liquid rising in the basin 2 lifts a float 4 protected by the shield 5, thereby tilting the lever 6 and opening the valve 11 on acompensating distributing- arm. A central feed-pressure distributer is shown in Fig. 6. This consists of a basin 14 supported on bearings 14<a> and provided with mercury seals 15, 21. A water motor 19, provided with curved gills or blades attached to top and bottom circular discs 19*, as shown in Fig. 6<a>, is secured to a mast 18 with ventilating-slots 18<a>, and is surrounded by a fixed apron 22 with curved gills or blades 25. An alternative form of motor consists of tubes having bent discharge ends. The basin has a domed cover 17, and the distributing-arms are supported from the mast 18. The liquid rises through the supply pipe 13 and through the motor. Another form of revolving distributer is shown. in Fig. 7, in which the shaft 30 passes through the supply pipe, and has attached to it a number of curved gills or blades 31 in a circular chamber 29, the liquid being delivered tangentially into the chamber.