Abstract: A book holder includes a shelf for supporting literature on the upper surface thereof is attached to a mounting member by means of a bracket. The bracket retains the shelf capable in a manner to be switched from a use position whereat the shelf extends obliquely and forwardly from the mounting member to a non-use position whereat the shelf is housed under the mounting member. The bracket may be mounted on the mounting subject through a swivel mechanism, whereby the direction of orientation of the shelf may be changed when in the use position.

Abstract: A floor sweeper is disclosed. The floor sweeper has a handle, a main body including a detergent compartment, a roller mechanism including a roller with a washing belt thereon, a scraper and a waste fluid compartment. Detergent is dripped from the detergent compartment onto the washing belt. The washing belt washes a floor and wipes stains therefrom due to frictional contact therewith during the forward motion of the floor sweeper. Waste fluid soaked into the washing belt is squeezed from the belt by the scraper and is collected in the waste fluid compartment during the backward motion of the sweeper.