| 摘要 |
IMPROVEMENTS IN SEWAGE SYSTEMS 5 AN INSPECTION CHAMBER FORMED FROM PLASTICS MATERIAL AND COMPRISING A RECEIVING CHAMBER (1) HAVING ONE OR MORE INLETS (6), THROUGH WHICH THE SEWAGE OUTFLOW FROM A BUILDING ENTERS THE CHAMBER (1), AND AN OUTLET (5) CONNECTED TO THE MAIN SEWAGE SYSTEM AND A VERTICAL SHAFT (7) WHICH EXTENDS TO GROUND LEVEL WHERE IT IS CLOSED BY A CLOSURE MEMBER, WHEREIN THE INLETS(6) IO TO THE INSPECTION CHAMBER ARE MOVABLE RELATIVE TO THE OUTLET (5) SUCH THAT EITHER WHEN THE OUTLET (5) IS ALIGNED TO THE INLET TO A MAIN SEWER THE INLETS (6) CAN BE MOVED TO A POSITION IN WHICH CONNECTION OF THE INLETS TO THE OUTLETS FROM THE BUILDING IS SIMPLEST OR VICE VERSA. (FIG. 2) 15
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