| Popis: |
A new horizontal bottle The new horizontal bottle was especially designed to procure water and suspended material from near the bottom, particularly in the estuaries and shallow waters. The bottle (see Fig.1) is composed of a rigid plastic tube ( 1 ), with the capacity of about one liter, turning on a ballast-iron disk ( 2 ) perforated by four gaps of 5 cm diameter which eases the submersion and which will rest on the bottom. A brass-clip ( 3 ) bears a rotation axle in its foot ( 4 ) and a helm in its top ( 5 ), which has a closure system ( 6 ) by messenger and a gyratory ring of suspension ( 7 ). The two rubber balls ( 8 ), provided with a little stainless steel wire ( 10 ), are connected inside the bottle by a sandow ( 9 ), which sandow fastens the bottle. Thus, when the apparatus reaches the bottom, the disk settles and the bottle turns in the stream direction. As soon as the stream has carried away the removed sediments, a messenger is sent in order to shut the bottle. This bottle can also be used in the middle water, in which case the disk is replaced by a profiled weight (6–22 lb. according to the stream). |
