Fig. 41.—Spring Step for Bookcases ([Section 158]).
158.
158. Detached steps secured to the uprights of bookcases, combined with handles, are very often used for staff purposes in place of the ordinary movable wooden steps or ladders. There is one form with an automatic adjustment which enables the step to spring up flat against the upright out of the way when not wanted as figured in illustration ([Fig. 41]). It is not necessary to fit this into the uprights, and to cut away the woodwork in order to let it into its place. There is still another variety, used at Hull, Kilmarnock, etc., which is always in position for use, but which also possesses an automatic adjustment enabling it to be brushed aside harmlessly by anyone passing, and to return to its “ready” position at once. This form can be attached to any ordinary wooden upright by means of screws, without cutting away or fitting. The handle supplied with this has a superior shape and grip ([Fig. 42]).
Fig. 42.—Swinging Step and Improved Handle ([Section 158]).