| 摘要 |
FIELD: angling in dark hours. SUBSTANCE: float has housing accommodating supply cells in lower portion, lamp in upper portion and circular floating chamber in middle portion. Novelty design of float is that spring is installed between upper portion of housing and chamber. Spring is connected with supply source. Electric contact is placed between spring coils, and insulating tubes are fitted on coils. EFFECT: increased compactness of float, provision of adjustment of sensitivity and disconnection of supply without taking out supply cells. |
