Abstract: A vent for a roof, said vent 2 includes a box 4, shaped to be a somewhat vertical chimney, in order to maximize an upward hot air flow out of the vent. The box has an upper rim and the rim has sides. A translucent hatch extends beyond the rim to provide overhangs of several inches and thereby provide rain protection at the rim when the hatch is open. A hinge allows lifting the hatch at all sides of the rim, to allow a breeze from any direction to venturi air from the chimney, without creating an air-scoop that would cause a downdraft, which downdraft would counteract the upward hot air flow. Above a preset temperature, a heat-actuated lifter lifts the hatch. The lifter increases the lift distance at higher temperatures, and decreases the lift distance at lower temperatures. The lifter closes the hatch below the pre-set temperature. The translucent hatch admits light, and inside surfaces of the box transmit that light by reflection to a space below.

Abstract: A method of systematizing a process for a user, in which the process has steps. Each step has a corresponding tab. The user sequentially performs the steps of the process in a sequence defined by an order of tabs. One step is linked to a subsequent step. Performing the step will affect the subsequent step.

Abstract: A wall anchor assembly has a pair of posts extending from a collar. The collar has an opening for passing a part of a bolt. Distal from the collar, the posts are connected by a connector. An anchor member is captive between the posts and between the collar and the connector. The assembly has a penetrating configuration in which the anchor axis is substantially parallel to the assembly axis, and the anchor body portion and posts form a body portion. A tongue protrudes from an inside surface of a post and engages a groove on the anchor member in the penetrating configuration with the longitudinal anchor axis substantially parallel to the assembly axis, and transmits axial rotation from the collar to the anchor member. The bolt engages a hole in the anchor to draw the anchor member against the wall to clamp the anchor assembly to the wall.

Abstract: A rotary switch is contained inside a knob. The switch operates on a surface of an electrical device. The switch has a rotating housing, an axle, an axle bearing, switch contacts, and a knob, in which the knob is the housing, and the knob, axle, axle bearing, and switch contacts are all located external to the surface of the electrical device, and are all contained within a space defined by a surface of the knob.

Abstract: An improved inflatable protective fabric enclosure for an automobile. The enclosure has a base frame for stabilizing and locating the enclosure. The improvement includes the following features. One or more hoops support the fabric. Each hoop has two ends. Frame clips attach the hoop ends to the base frame. Each frame clip has a pintle for engaging each end of the hoop. An upper portion of fabric of the enclosure has hoop loops, for locating and stabilizing the hoop at a top of the hoop's arc.

Abstract: A store display, for one handed dispensing a measured volume of bulk items such as hard candy, has a storage compartment. The storage compartment has a sloping floor for gravity feeding a dispenser. A chute, attached to the separator and moveable with it, prevents dispensing in a low position, in which low position a separator allows bulk items to flow towards the chute. One hand holding a bag drives the assembly of chute and separator up to where the separator separates the measured volume of bulk items, and the chute communicates between the measured volume and an exit. The chute thereby permits the measured volume of bulk items to flow out the exit, and into the bag.

Abstract: A method and apparatus for monitoring the location of a fetus in a birth canal during labor. The conductors of a fetal monitor probe, such as a fetal heartbeath monitor electrode, are marked with calibration means corresponding to pedetermined distances from a babyward end of the probe. The babyward end of the probe is attached to the baby. During labor, the position and progress of the fetus in the birth canal may be inferred by observing the calibration means relative to the outer end of the birth canal.

Abstract: A universally positionable holder securely holds a book or other printed matter in any position. A selectively shaped back plate has a frontal lip at its lower portion and straps, secured at its upper portion. The straps are extendable across the front of the back plate to bend around the bottom to the back, where they are secured to the plate by hook and loop type fasteners. Hold-down stays are pivotably mounted near the top of the back plate and attachment means are provided on the back of the back plate. The back plate is attached via a double ball-joint to a universally positionable support arm comprised of arm segments and joints, mounted upon a base that may be mounted either by clamp or by screws.

Abstract: In the construction of tall concrete towers, a two part derrick is suspended by cables from the tower to the lower part of the derrick. The derrick is extended on hydraulic rams, raising its upper part and outside casting forms. A pulley system maintains a deck scaffold and inside forms at their original level during extension. Extension of the derrick slakens cables from the tower to the upper part of the derrick. These cables are disconnected from the tower and reconnected at a higher level. Outside forms are fixed, reinforcing steel set in place, and the derrick retracted, raising the deck scaffold and inside forms by the pulley system, and slacking the lower cables. The lower cables are disconnected from the tower and reconnected at a higher level. Inside forms are set and concrete is poured. The concrete sets and the procedure is repeated.The deck scaffold comprises radiating wooden beams with endpieces.

Abstract: A sailing rig which comprises a rigid airfoil, with intakes on either side of its front. Air is drawn through the leeward intake into a front compartment, then by fan to a pressurized rear compartment, where it exits via a rearwardly directed jet nozzle on the airfoil's trailing edge. The airfoil may have an articulated jib and a pivotable jet nozzle.

Abstract: A universally positionable holder securely holds a book or other printed matter in any position. A selectively shaped back plate has a frontal lip at its lower portion and projecting pegs extending from a lower portion of the back plate. A plurality of spaced projecting pegs extend from the upper portion of the back plate. Hold-down stays are pivotably mounted near the top of the back plate and attachment means are provided on the back of the back plate. Elastic bands may be affixed to the lower pegs and stretchably secured across a book cover to any of the plurality of spaced projecting peg means extending from and along the upper portion of the back plate which is attached via a ball-joint to a universally positionable support arm comprised of arm segments and joints, mounted upon a base that may be mounted either by clamp or by screws.

Abstract: A rigid or semirigid sailing rig having an airfoil shaped mainsail, hinged at its luff to an airfoil shaped jib pivotable at the hinge axis 25.degree. to either side of the mainsail's centerline to form a continuous airfoil which is smoothly curved on the lee side and relatively flat on the windward side. The airfoil is mounted between two end plates and the entire assembly is rotatable 360.degree. relative to the ship and on an axis of rotation slightly jibward of the center of wind pressure upon the airfoil assembly.

Abstract: An improved photopolymer coated lithographic printing plate having a thin, glasslike and water insoluble film disposed intermediate a photopolymeric coating and a directly electrodeposited layer of chromium on a sheet metal base substrate, and wherein said film comprises the cured residue of an applied zirconium base water solution.