Abstract: Upper and lower shelves are supported on a rotatable post in a cabinet to turn outwardly about the axis of the post from a stored position to an accessible position, the lower shelf being turned out automatically when the door of the cabinet is opened. The lower shelf is mounted to turn relative to the post while the upper shelf is mounted to turn with the post so as to enable the lower shelf to turn outwardly independently of the upper shelf and to enable the use of a simple lower bearing element for rotatably supporting both the post and the lower shelf.

Abstract: A towel ring assembly comprising a split ring which swings in a pair of holes in a base is constructed so that the ring will not separate from the base when the ring is pulled with a heavy load. For this purpose, the base includes an integral web which is located between the holes and which is formed with a hole for receiving the screw of a fastener assembly. The fastener assembly ties the ends of the ring to one another and, when tightened, draws the ends of the ring toward the sides of the web. Lugs are formed integrally with the sides of the web and engage the ends of the ring to limit swinging of the ring beyond predetermined positions in either direction.

Abstract: A rack formed by a window-like framework is adapted to support various holders for organizing articles in a cabinet and is adapted to be pulled from a stored position in the cabinet to an accessible position in which substantially the entire rack is disposed completely outside the cabinet. The rack is carried by a bottom-supported mounting assembly having pivoted arms which collapse toward one another as the rack is moved inwardly to its stored position and expand away from one another to form a double-triangular bracing structure as the rack is pulled outwardly to its accessible position. The arms coact with guide rollers on the bottom of the cabinet to hold the rack stable in each of its positions without need of any top support for the rack. One of the holders which is supported by the rack is a wire-grid book shelf equipped with an adjustable bookend which is held by the grids of the shelf.

Abstract: A vertical post is rotatably mounted in a corner cabinet and supports a plurality of rotatable shelves which carry the cabinet door. The lower end of the post is rotatably supported by a lower bearing element which rests on a bearing member on the bottom wall of the cabinet. To enable the post and the door to be adjusted vertically, the lower bearing element is a slide supported for up and down movement in the post and having a downwardly inclined ramp on its upper end. A downwardly inclined screw extends perpendicular to the ramp and may be tightened and loosened to shift the slide downwardly and upwardly relative to the post. The head of the screw is sunk within the post to enable the shelves to be slipped onto the lower end of the post during assembly and to enable one of the shelves to pass upwardly by the location of the screw.

Abstract: A portable router for cutting slots in a cabinet door to receive wings of hinges includes a router motor and spindle mounted on a slide which moves back and forth on a frame. The latter rests on the door when cutting each slot and is located on the door by a selected one of two guides. The latter are disposed on opposite sides of the spindle and project down beneath the frame into an active position but may be pushed up to a retracted or inactive position. One guide is adapted to engage one end of the door and its spacing from the spindle is correlated with the desired spacing between that end and the adjacent slot. Similarly, the other guide is adapted to engage the other end of the door and locates the spindle for cutting the slot near that end. As the frame is lowered onto the door, the latter engages the inactive guide which thereby is pushed up to its retracted position and the guide drops by gravity to its active position as the router is lifted off the door.

Abstract: The backset of a deadbolt lock may be adjusted selectively between 23/8" and 23/4" by manually shifting a spring-loaded pin which extends through vertical slots in the lock bolt, U-shaped slots in the driver bar and inverted L-shaped slots in the lock case. The pin also connects the driver bar to the bolt and causes the bolt to move between extended and retracted positions when the operating spindle of the lock is turned.

Abstract: Two vertically spaced shelves with pie-shaped cut outs are rotatably supported on a fixed post in a corner cabinet. Each shelf is rotatably mounted on the post by an anti-friction bearing assembly comprising a rotatable bearing member attached to the shelf and a fixed bearing member attached to the post. To enable the pie-shaped cut out of the shelf to be located in a predetermined angular home position relative to the cabinet door, a detent mechanism is incorporated in the bearing assembly. The detent mechanism includes a cage carried by the rotatable bearing member and supporting a detent ball which snaps into a detent notch in the fixed bearing member to hold the shelf releasably in its home position.

Abstract: A power actuator for a window includes a rotary drive member and a rotary driven member which is turned by the drive member and which is connected to the sash of a window to open and close the sash as the drive member is turned in one direction or the other. A reversible electric motor drives a speed reducing gear train and the output gear of the train is coaxial with and rotatable relative to the drive member, a crank arm with a projecting pin is pivotally mounted on the drive member to swing between an active or radially projecting position and an inactive position overlying the drive member. When the arm is in the inactive position, the pin connects the output gear and the drive member so that the motor may turn the driven member. With the arm in the active position, the pin no longer couples the output gear and the drive member and the latter may be turned manually by the crank arm independently of the gear train.

Abstract: A window operating system includes a motor control circuit for controlling the operation of direct current permanent magnet motors mounted on window operators associated with each window. Each of the motors on each of the windows is connected to the control circuit only by a pair of wires which both power the motor and provide information to the control circuit as to the status of motor operation. The status of motor operation is determined by monitoring the back electromagnetic force expressed by the motors. To help differentiate back electromagnetic force from supply voltage supplied to the motors, the motors are supplied with full rectified alternating current power, rather than simple direct current, so that the presence or absence of zero voltage between half waves of the voltage expressed across the motors can be monitored to determine the absence or presence of back electromotive force during those time periods.

Abstract: A window operating system includes a motor control circuit for controlling the operation of direct current permanent magnet motors mounted on window operators associated with each window. Each of the motors on each of the windows is connected to the control circuit only by a pair of wires which both power the motor and provide information to the control circuit as to the status of motor operation. The status of motor operation is determined by monitoring the back electromagnetic force expressed by the motors. To help differentiate back electromagnetic force from supply voltage supplied to the motors, the motors are supplied with full rectified alternating current power, rather than simple direct current, so that the presence or absence of zero voltage between half waves of the voltage expressed across the motors can be monitored to determine the absence or presence of back electromotive force during those time periods.

Abstract: A rotary shelf assembly having a plurality of shelves mounted on a vertical post is disposed in a cabinet frame with upper and lower bearing elements supported at opposite ends of the post and coacting with vertically spaced bearing members which are secured to the cabinet frame to support the post for turning about its longitudinal axis. The assembly is adapted to be mounted in the corner of the cabinet frame and, to accommodate this, the shelves have perpendicular edges which generally align with the sides of the cabinet in one angular position of the post and which support a V-shaped door. To adjust the vertical position in the cabinet frame, the lower bearing element is on a slide in the lower end portion of the post and a manual actuator on the post moves a cam which cooperates with a cam follower on the slide to move the slide and hence the lower bearing member downwardly relative to the post.

Abstract: A drawer slide assembly for supporting a drawer to slide open and closed in an opening in a cabinet frame includes an elongated upper member extending longitudinally of the drawer and secured to the latter and a parallel lower member spaced below the upper member and secured to the frame. A pair of rollers are journaled side by side on the upper member near the rear thereof and engage track sections formed on the lower member. Similarly, a second pair of rollers are journaled on the lower member near the front thereof and engage track sections formed on the upper member. The rollers are given a short axial profile while having effective diameters greater than their actual diameters by forming the rollers with surfaces which are inclined at acute angles relative to the roller axes and the associated track sections are inclined at similar angles.