Abstract: A luminaire comprises a transparent enclosure tube, a cylindrical handle housing at one end of the tube, and a cylindrical cap housing at the opposite end of the tube. A light carriage within the tube comprises a unitary subassembly consisting of a rigid reflector having light bulb holders at opposite ends and a fluorescent bulb secured between the holders. The light carriage is removeable and replaceable as a unit without tools through an open end of the tube by unplugging it from and plugging it into a contact receptacle in the handle housing. Complementary plug and socket formations in the handle housing and light carriage assure alignment of bulb contacts. The housings have castellated ends engageable with detents on mounting brackets on a base to hold the luminaire and to direct light in a selected direction. The cap housing has a telescopical end section which is manually moveable against a spring to release the luminaire from the base without tools.

Abstract: A connector assembly for effecting electrical circuit connection between insulated wires without removing the insulation therefrom including two identical insulated unitary housing members capable of being coaxially interfitted to define a central passage chamber for a dual conductor cable; each housing member carrying a plate terminal formed with an elongated central opening receptive of a single wire conductor and having a sharp prong protruding from one side thereof for penetrating the insulation of the cable and contacting one wire conductor thereof when the housing members are interfitted; each of the plate terminals operating to penetrate the insulation of an associated single wire conductor to establish circuit connection therewith.

Abstract: A structural assembly for preventing load distortion of a cantilever supported upper seat and foot supporting deck of a multi-tiered telescopic bleacher assembly which comprises a series of horizontally spaced vertically adjustable, floor engaging posts adapted to be anchored to a vertical supporting wall and underlying floor intermediate the support columns of the bleacher assembly. Each post carries a horizontal support beam and angle bracket at its upper end that extends beneath and is joined to the top row of bleacher seats and the foot supporting deck associated therewith to reinforce the bleacher's normal support framing against undesired deflection and bending.

Abstract: A target system having a plurality of flat target boards mounted on posts which are rotatably journaled on an elongated base. Each post is rotatable ninety degrees. A drive crank arm is pivoted to the base for horizontal swinging movement and is pivotally connected to an elongated drive and synchronizing bar which in turn is pivotally connected to a plurality of lever arms connected to the respective posts to swing the target boards simultaneously between full view positions easily visible to a shooter, and edge view positions not visible to the shooter. A superior degree of reliability results from optionally selectible, multiple power drives applied to the single drive crank arm. Optional, ground-supported and overhead-supported embodiments are disclosed. In the embodiments shown, two drives with completely different power sources are shown, one being fluid pressure, the other being electricity. These are in a compact, over-and-under relation.

Abstract: A merchandise display rack employing spaced two tubular uprights of quadrangular cross section having one wall provided with connector openings each receptive of a single connector pin extending outwardly from the outer ends of parallel tubular arms of quadrangular cross section associated with a shelf structure; the connector pins causing the outer ends of the tubular arms to tightly abut the uprights and provide a stable cantilever support for the shelf structure when the latter is horizontally positioned.

Abstract: An assembly for vertically extending a gondola display area which includes a pair of upright extension tubes, each with a single protruding mounting hanger connectable with slotted openings in tubular vertical uprights of the display framework; adjustment and locking brackets fasten to each extension tube, above and below the mounting hanger thereon, for pivotally adjusting and locking the extension tubes in parallel relation to support one or more horizontal cross bars having elongated retention rods for coupling plural detachable merchandise display elements to the crossbars.

Abstract: A dough rounder machine for kneading and forming dough and similar plastic masses into uniformly shaped form in which the dough is placed in an annular die driven by eccentric drive means over a stationary horizontal tray table whereby to move the die in a generally circular orbit over the table. Dough placed in the die is overcovered by a weighted cover which orbits with the die and is gravity actuated to exert vertical force on the dough. Engagement of the dough with the table, orbiting die and cover serves to knead and roll the dough into a substantially spherical mass, the texture and density of which is regulatable by the cover weight and movement of the die over a limited time interval.

Abstract: A portable ceiling fan assembly has an upright shaft secured to a base. A fan-supporting bracket is mounted on the shaft. In the embodiment shown, the bracket is C-shaped and has a lower arm extending horizontally and cantileverly from the shaft, and an upper arm extending toward the axis of the shaft. There is a fan-receiving space between the arms. A ceiling type fan is supported at the free end of the upper arm, with the blades of the fan rotatable in the space between the arms, and the rotational axis of the fan is congruent with the upright axis of the shaft.

Abstract: A portable lighting unit comprising a three wheeled transportation vehicle having a low slung bed frame mounted over two axially aligned wheels while a third wheel thereof is pivotally mounted at one end of the vehicle frame and is steerable in response to movements of a pulling tongue. Plural high intensity flood lamps are mounted in parallel horizontal banks atop two elongated light bars which in turn are pivotally carried on top of vertically adjustable telescopic masts for pivoting the lamps. Additionally portable flood lights are detachably mounted on the light bars for hand held mobile spot light operation or selective positioning remotely of the vehicle on ground engaging stands. A heavy duty battery powers the lamps and flood lights over switch controlled circuits available via insulated cables and a distribution panel.

Abstract: An injection molding machine is illustrated with tie bars extending from a stationary die plate. A movable die plate is slidably movable along the tie bars. Corrugated elastic sleeves cover the tie bars and are seated at opposite ends on the die plates to keep molded parts from contacting the tie bars when the mold is open and thereby protect the molded parts from contamination by lubricant on the tie bars. In the embodiment shown, the corrugated sleeve is made of plastic material and is split longitudinally to facilitate assembly. The split sleeve construction enables the sleeves to be assembled sidewise onto the tie bars, and held snugly onto the bars by wires or cable ties.

Abstract: A mortarless concrete block retaining wall is formed from special blocks arranged in set-back tiers and interlocked by special offset pins. Each block is trapezoidal in plan view with a pair of vertical holes behind a relatively wide front face. The holes in adjacent tiers are laterally offset. The pins have opposite end sections which are laterally offset from one another and fit respectively in the offset holes to interlock adjacent tiers in set-back relation. The special pins are rotatably adjustable to interlock the tiers in a straight configuration or in varying degrees of convex and concave curved configurations.

Abstract: A rear suspension system for a two wheel cycle such as a bicycle or motorcycle having a main frame which includes a rearwardly or downwardly inclined down tube. A vertically pivotable rear frame assembly includes a pair of swing arms which extend rearwardly from pivotal connections on the main frame. Rear wheel fitments are carried by the swing arms. A pair of elongated tubelike or rodlike chain stays extend forwardly from the rear fitments at a fixed angle relative to the swing arms. A tubular shock absorber assembly is supported on the down tube and has a spring urging a coupler portion thereof in a forward and upward direction. A double-pivoted link is pivotally connected between the forward ends of the chain stays and a bell crank assembly which is pivotally connected to the underside of the frame, and in turn, connects the double-pivoted link to the coupler portion of the shock absorber assembly.

Abstract: Improved apparatus for carrying out minimally invasive interstitial laser hyperthermia to induce coagulation necrosis in tissue masses located deeply within the body of a subject. Among examples are malignant tumors in the liver or breast. Low power laser radiation is introduced through an optical fiber extending through a cannula or probe guided into place by medical imaging techniques and inserted directly into the target tissue mass. A thermocouple is secured to the outside of the cannula to sense the temperature of the target tissue irradiated by the laser energy. The thermocouple is located slightly behind the distal end of the cannula and the entire probe assembly is gold plated enabling it to respond primarily to heat transmitted by conduction from the tissue and not by radiation from the laser.

Abstract: A closure ring assembly for securing a cover in sealed relation over the open top of a storage drum container in which a split ring is closed by tightening a headed tie bolt between a pair of laterally spaced lugs fixed to the ring on opposite of the split therein; the bolt freely passing through one of the lugs and threadingly engaging the other so that upon tightening the bolt the ring is contracted with the one non-threaded lug having outwardly extending teeth for engaging the bolt head to lock the same in tightened position.

Abstract: Exercising machine having a vaned fanwheel rotatably mounted on a frame in open air and arranged to absorb energy by rotating the vane blades against ambient air. The fanwheel comprises a hub with a plurality of air vanes which are movable in an orbit around the axis of the hub. Each vane comprises a blade having leading and trailing surfaces. In the preferred example shown, each blade is a semi-cylindrical plate mounted with the hollow, concave side comprising the leading surface, and the streamlined, convex side comprising the trailing surface. The vanes are circumferentially spaced apart to substantially eliminate drafting and stagnant wake regions between blades. The coefficient of drag for the concavo/convex vane blades of this invention are substantially twice that obtained by flat plate vane blades conventionally used. Alternative forms of the invention are illustrated with semi-spherical concavo/convex and semi-cylindrical plano/convex blades. All have in common trailing streamlined convex surfaces.