Abstract: A grid for a fire-rated suspended ceiling includes a plurality of identical parallel spaced main beams and a plurality of identical parallel spaced cross tees supported by the main beams, the main beams and cross tees each having a substantially inverted T cross section and each including coupling means integral with the ends thereof, the coupling means for each main beam featuring a laterally offset tongue and an integral offset bulb end portion that is crushed to reduce its lateral dimension and to form a stiffening rib, whereby relative is facilitated.

Abstract: A process for lacquer finishing of open-grain woods such as mahogany, comprising the steps of forming, within the pores of the wood, a film substantially insoluble in lacquer thinner, and thereafter applying lacquer, whereby gas bubbles located within the pores of the wood are unable to rise to the surface of the wood and form blisters.

Abstract: A seat construction is comprised of a relatively rigid support, a first cushion supported at its bottom surface on the support and having a recessed portion formed in its bottom, a second cushion supported at its bottom surface on the support and contained within the recessed portion of the first cushion, the first cushion being made of a resilient material of a relatively high density and compression characteristic and the second cushion being made of a resilient material that is softer and has a lower compression characteristic than the first cushion and a cover enclosing the outer surface of the first cushion and secured to the support.

Abstract: A substrate is coated with a polyvinylpyrollidone-polyurethane interpolymer. In the method, a polyisocyanate and a polyurethane in a solvent such as methyl ethyl ketone are applied to a substrate and the solvent evaporated. If the substrate is a polyurethane, only the polyisocyanate need be employed. Polyvinylpyrollidone in a solvent is then applied to the treated substrate and the solvent evaporated. The invention is applied, for example, to a tube such as a catheter, a condom and a peristaltic pump tube.

Abstract: A device for smearing on slides a drop of liquid placed on a predetermined point on each slide has slide magazines containing a plurality of slides with the uppermost slide in each magazine having its upper face exposed for the reception of a drop of liquid towards one end thereof. Spreaders are adjacent the other ends of the slides. Means advance the spreaders out of contact with the slides, lower the spreaders into contact with the slides as they approach said predetermined points on the slides and slow the advance of the spreaders as they approach said points. The spreaders are retracted and the angle between each spreader and slide decreases to thin the smear of liquid. Means advance the uppermost slide in each magazine forwardly out of the magazine a predetermined distance to facilitate the removal of the slide by hand after the desired smear is made.

Abstract: A generator load curve is precisely matched to a wind-driven motor characteristic by means of a rotor speed-responsive tachometer effecting stepwise control of field current in the generator. Several variations of the tachometer circuit are described. Field current is controlled by an amplifier, and voltage regulation is effected by an override circuit disabling the amplifier.

Abstract: A package comprising a tube of flexible material having a first and second end, a first ultrasonic seal extending transversely across the tube and closing said first end, a second ultrasonic seal extending transversely across the tube and closing said second end, a chamber formed by said tube and end seals for containing contents, a hollow stem extending through and supported by the second seal with an inner end inside the chamber and an outer end outside the chamber, and a removable seal closing the outer end of the stem, said stem seal being removable when it is desired to dispense the contents from the package.

Abstract: A hinged knock-down returnable, self-locking bin includes a base panel, first and second side panels, first and second end panels, and first and second panel hinge means, the first panel hinge means being provided for hingedly connecting each of the side panels to a side of the base panel, and the second hinged means being provided for hingedly connecting each of the end panels to an end of the base panel. Locking meansare provided for connecting the tops of the side panels to the tops of the end panels. The bin is characterized by its simplicity of structure, the ease with which it may be erected for use in shipment, singly or in stacked interlocking relation, and the ease with which it may be collapsed so as to occupy a minimum space for storage and return shipment for further use when emptied of its contents.

Abstract: A hanging file support frame has a pair of channels each having a web portion and opposed hook portions for supporting file folders and has a pair of transverse members. Four corner fittings each have a substantially horizontal opening receiving one end of a transverse member. Each corner fitting also has a bead engaged by one of the hook portions of a channel and an integral resilient latch engaged by the other hook portion of said channel for releasably locking the channels to the fittings. Each corner fitting is supported by a leg. Advantageously, the channels have a plurality of lines of weakness and the corner fittings have opposed grooves for the reception of the hook portions of a channel to support a portion of the channel to be broken off at a line of weakness to adjust the length of the channel.

Abstract: A multiple dose paste dispenser has a frame with a handle secured thereto. A piston rod having a piston on the front end is mounted in said frame for longitudinal movement. A cartridge is secured to the frame in alignment with the piston. A gripping ring is slidable along said rod and grippably engages the rod when it is tilted with respect to the rod. A return spring urges the ring in a direction away from the piston. A trigger pivotally mounted on the frame is adapted to tilt the ring and advance the ring, the rod and the piston into the cartridge. A stop is pivoted to the frame for movement from an inoperative position to a position for limiting the advance of the ring. Advantageously the stop is stepped to provide for at least two different stop positions.

Abstract: A support for use in a movable indicia display comprises a series of at least three substantially identical panels arranged in edge-to-edge adjoining relationship in a plane, each panel having a first guide channel formed along one edge and located on one side of the plane and a second guide channel formed along the opposite edge and located on the other side of the plane, the non-adjacent guide channels of adjoining panels facing each other to provide a guide for the opposite edges of indicia-carrying means located therebetween.

Abstract: A discharge valve for controlling the discharge flow of water from the delivery end of a fire pump including a valve body having an integral extension portion forming an inlet waterway for delivering water from the delivery end of the fire pump to the valve chamber of the discharge valve, a valve cover having an integral discharge portion for directing the water to the fire hose in a downward direction, and a push-pull drain valve formed integrally with and contained within the valve cover.

Abstract: In school jewelry such as school rings, bezel ring top keys, and ring top charms used as souvenirs and prom favors, a school ring top is provided having a beveled bezel and a stone with a faceted pavilion. The school ring top closely simulates the appearance of a die struck or cast ring top and provides clear and legible letters spelling out school-related information in its bezel which is made from a developed photographic film sheet with a reflecting backing layer. The bezel is slanted and of sufficient height for easy reading from a side view as well as a top view, and for accommodating a stone with a faceted pavilion. Three methods of making the miniature ring top are disclosed. One method includes doming the bezel by applying pressure to form a dome section, and then cutting a bezel out of the dome section. A second method includes cutting a bezel strip, removing a pie section from the bezel strip, and then doming by placing the ends of the pie section together.

Abstract: In an automobile having an independent motor driving each wheel, the effective unsprung mass is minimized, and impulse shock is reduced, by arranging each wheel at the end of an arm pivoted about a normally horizontal axisof gravity of the motor, having a center of percussion approximately at the wheel axis, and having a corresponding axis of suspension at the arm's pivot.

Abstract: This orthopedic appliance for correcting a wide variety of lower extremity deformities comprises: a bar which is scored so that it can be broken to provide a bar of a desired length; lockable articulated joints at both ends of the bar; releasable clips for rapidly attaching and detaching the articulated joints to and from the bottom of the patient's shoes; index markings allowing the articulated joints to be accurately adjusted and locked in the desired position; nesting extension attachments; and stabilizer rods for maintaining plantar or dorsi flexion and insuring that the device is not defeated by bending the knees.Included in the appliance is a lockable articulated joint utilizing a hollow spherical member clamped between a spherical socket and a spherical locking member.

Abstract: A ticket issuing machine is constructed with a ticket wheel rotatably mounted adjacent a ticket supply for feeding tickets by means of pins which engage in holes in the ticket web and a wheel advancing mechanism including a manually operable means engageable with the ticket wheel for rotating the same through a first portion of the ticket issuing stroke, and a spring-operated detent mechanism causing the ticket wheel to advance through the remainder of the ticket issuing stroke. The ticket issuing machine is also provided with a full stroke mechanism for insuring a complete ticket issuing stroke and an anti-spin mechanism for arresting the ticket wheel at the end of the ticket issuing stroke.

Abstract: A seal for sealing between a rotating member and a housing comprises a seal ring mounted for movement towards and away from the rotating member and having a high pressure side, a low pressure side, and a face opposed to the rotating member. Resilient means urge the seal ring towards the rotating member. Hydrodynamic means in the form of a plurality of spaced recesses in that face of the seal ring opposed to the rotating member, with the entry to each recess more restricted than its exit so as to produce negative hydrodynamic lift in the recess and urge the seal ring towards the rotating member. A seal is provided between the housing and the seal ring.

Abstract: A medical alert bracelet for carrying an emergency supply of a patient's medicament comprising a bracelet strap and a blister package containing a medicament form. The blister package is held in the bracelet strap, a hole is formed in the bracelet strap beneath the blister package for push-through ejection of the medicament from the bracelet, and a closure is provided for closing the strap onto the wrist of the patient. A weakened line is positioned across the strap and is easily ruptured to remove the strap from the patient's wrist, and a locator notch is provided at the weakened line so that it is easily located, even in the dark. The invention also includes a method of making the medical alert bracelet.

Abstract: A multiple paper punch has a base. A substantially vertical stripper plate is mounted on the base and has a plurality of openings for punch pins. A punch pin is mounted in each opening with each punch pin having a cam follower head. A substantially vertical die plate is mounted on the base adjacent the stripper plate and has openings in line with the openings in the stripper plate. The stripper plate and the die plate form a guide for the vertical entry of a sheet to be punched. An operating bar is mounted on a substantially horizontal pivot and has a depending cam portion adapted to engage the head of each punch pin. The punch pins and operating bar are biased to the inactive position by resilient means.

Abstract: Apparatus for promoting blood circulation in a body part suffering from a circulation deficiency by inflating and deflating a pressure cuff applied to a patient's limb proximal to the affected body part so that the blood is forced into the affected body part. The apparatus is synchronized with the patient's heartbeat by way of an EKG pickup and automatically compensates for the blood transit time from the heart to the point of cuff application. The apparatus includes control means responsive to the sensing of the blood flow at a location distal to the cuff for achieving optimum blood circulation in the body part being treated.