Abstract: A window lock for securing a first window member against unauthorized movement relative to a second window member, the window lock including a bolt mounted for sliding movement in a drum journaled for rotation on a hub throughout an arc of rotation, the hub being affixed to the first window member and the bolt carrying a key and a latch engaged with a cavity in a housing affixed to the second window member throughout the arc of rotation of the drum when the bolt is advanced, the hub having a recess oriented for receiving the key of the bolt only when the bolt is located at a predetermined angular position within the arc of rotation where the key is registered with the recess to permit retraction of the bolt and corresponding retraction of the latch from the cavity, the orientation of the recess being masked from unauthorized view such that visual verification of the predetermined angular position of the bolt is restricted to an authorized operator.

Abstract: A document holder has a tray for holding documents in the form of a stack of individual sheets, the tray being movable between a generally horizontal orientation in which the sheets are placed and retained in an organized stack, and a generally vertical orientation in which the sheets are presented for visual scanning and review, the document holder including restraining bars biased by gravity into position over the sheets in response to placement of the tray in the generally vertical orientation to maintain the stack of sheets in the tray during scanning and review, and into position away from the stack in response to placement of the tray in the generally horizontal orientation to enable access to the tray for easing placement of the sheets into the tray and removal of the sheets from the tray.

Abstract: A self-contained, portable dryer for use in drying articles of clothing includes a hanger bar with telescoping segments for selective collapse and extension, and a plurality of hangers stored within the telescoping segments and retrievable from within the hanger bar for erection and suspension from the hanger bar in one of two selectable configurations to accommodate the various articles of clothing ordinarily washed or rinsed out by travelers and hung out to dry at facilities available to such travelers.

Abstract: A book rack of selective capacity includes end members and a base extending longitudinally between the end members, the base having an undulate configuration including undular support members and an undular basal member, the undulations being in a flexible conformable material such that the length of the base may be expanded and contracted selectively into conformance with a particular longitudinal length by bending of the undulations, thereby providing a longitudinal spacing between the end members corresponding to the desired capacity of the book rack.

Abstract: A clip for securing together a stack of sheets, the stack having a height, or thickness, which can vary over an extended range, the clip having opposed clamping legs spaced apart and extending parallel to one another, a web interconnecting the clamping legs at corresponding ends of the clamping legs, and resiliently deflectable undulations in the web allowing relative displacement of the clamping legs away from one another to receive the stack between the clamping legs and biasing the clamping legs toward one another with a biasing force sufficient to secure the stack, while the clamping legs remain parallel to one another.

Abstract: A pocket-sized, portable book page holder for use in connection with holding open a smaller book having relatively narrow pages joined together along a central binding without obscuring the text appearing on the selected spread-apart pages, the book page holder including a pair of retainers biased into close juxtaposition with a spine and movable away from the spine and from one another by the manipulation of actuating handles associated with the retainers so as to receive a portion of the book between the retainers for gripping by the retainers along marginal portions of the selected pages and to hold the book open to the selected pages, the book page holder being in a compact, folded configuration for ease of carrying when not in use.