Improvements in raingauges or instruments for measuring or recording rainfall

摘要

292,776. Rollason, W. H. July 1, 1927. Drawings to Specifcation. Rain gauges.-A rain gauge of any ordinary type is constructed, as by spinning, casting, moulding &c., without joints or seams in any part of the material so that water can enter onlv by way of the knife-edged collecting rim and having entered cannot leak from the apparatus.