Abstract: A door security apparatus and method that is adapted to assist in retaining a pair of adjacent doors in a closed state, thereby to help protect against unauthorized opening of the doors by placing the doors into an open state. The door security apparatus includes a channeled extension beam having a longitudinal axis, the beam is adapted to fit over and removably engage a pair of adjacent door edges that are in the closed state and a mechanism for manually selectively rotatably clamping or unclamping the beam to at least one door edge. Wherein the doors have increased protection against unauthorized opening, thus placing the doors into a more secured closed state, the mechanism only manually selectively clamping or unclamping the beam from the door edge by applying a manual external force in conjunction with manual forward or manual reverse rotation.

Abstract: A child height measuring and data recording device comprises generally planar rigid panels having transverse pins at their ends for snapping into slots in connectors which articulate the sections for folding and unfolding. One panel is fastened to a wall and the others may be folded over it when not in use or unfolded to hang along the wall during making measurements and recording data. The front faces of the respective panels have parallel coextensive data channels. One channel has means for retaining photographs and the other has English and metric linear scales for measuring height. A hinged and captured connector is used for constraining the panels in folded condition.