Desk or lectern for musician has column with annular grooves and bookstand mounted on ring with profiled inside which can move up and down column

摘要

The desk or lectern has a column (1) on which is mounted a bookstand (4) whose slope can be adjusted by a movable arm system (3, 5) and which is mounted on a ring (2) which can move up and down the column. The column has annular grooves and projections around it which cooperate with the inner profile of the ring. The whole assembly is mounted on a trolley (6)