Abstract: A bicycle frame with asymmetric chain stays. The rear caliper brake is mounted across the underside of the chain stay tubes. The chain stay tubes are asymmetric. The front portion of the chain stay tube on the left side, opposite the chain, is curved farther outwardly from the centerline of the frame than the corresponding front portion of the other chain stay tube to provide a first step completely covering the end of the brake actuating arm to provide a support for a performer's foot while protecting the brake actuating arm from foot pressure. Second, third, fourth, and fifth foot-supporting steps or standing platforms are provided respectively by an upwardly-arched tube secured across the seat stay tubes, outwardly-curved rear portions of the chain stay tubes extending past the rear axle, and a diagonal tube secured between the down and seat tubes.

Abstract: Apparatus for cooling an electrical enclosure for use where headroom is limited. An imperforate top wall and a perforate ceiling wall below it define an exhaust compartment. The ceiling wall has openings above natural hot spots on heat-producing electrical components in the enclosure to receive heated air rising by convection. In one embodiment, louvered intake openings and internal baffles direct cool, external air to the bottom of the head-producing components. A fan draws heated air from the exhaust compartment and discharges it through a louvered orifice outside the enclosure, thereby augmenting the natural upflow of heated air by convection and preventing accumulation of heated air. In another embodiment, especially suited to dusty or corrosive environments, the electrical components are completely sealed, and clean inside cooling air is continuously recycled in a closed circuit between the heat-producing components and refrigerant-cooled heat-exchange apparatus.

Abstract: Scissors have a pair of pivotally interconnections blades and a ball-shaped handle. One embodiment has a pair transversely spaced, outwardly-convex, partly ball-shaped handle members at the rear end portions of the blades and an elastomeric member compressibly interposed between the handle members biasing the blades toward an open position. The handle members and elastomeric member have complementary, partly ball shapes providing an overall external configuration of a single ball. Another embodiment has a hollow, flexible ball completely covering and enclosing partially ball shaped handle members, the pivotal interconnections between the blades is concealed within the ball shaped covering, and a formed wire spring member is anchored at the interconnections and its opposite ends are seated against inner surfaces of the handle members. In each embodiment, manual squeezing pressure applied by a user's palm or fingers closes the blades against the bias of the elastomeric or wire spring member.

Abstract: A bicycle saddle to facilitate freestyle maneuvers. A protecting element comprising a roller assembly is supported in the rear portion and protrudes above the top surface of the saddle body to engage the pavement when the bike is in inverted position during freestyle maneuvers. This protects the saddle from scuffing damage and facilitates transition to and from the inverted position. Corrugations at opposite sides of the front nose portion facilitate gripping. Spring-biased pins at opposite ends of the roller assembly engage bores in the body and make it readily attachable and detachable. An upstanding, outwardly concave fillet extends along a clearance space between the body and roller assembly to prevent snagging a rider's clothing.

Abstract: A four cycle internal combustion, rotary engine is disclosed in which a cylindrical rotor having plural arcuately spaced, radially extending, piston carrying cylinders is mounted about a coaxially aligned central combustion chamber and main bearing for rotation therewith about a stationary main bearing support shaft which incorporates a fuel intake and exhaust manifold communicating with the combustion chamber and individual cylinders. A pair of stationary cam plates having registeringly aligned asymmetrical cam tracks are mounted in parallel spaced relation adjacent opposite axial ends of the rotor; the tracks thereof being simultaneously engaged by cooperating pairs of follower rollers slidably coupled to pistons in each of the cylinders in a manner requiring movement of the pistons radially of the rotor in response to rotational movement of the latter about the main bearing shaft.

Abstract: A film or photo print inspection machine having a print-advancing drive means to run a strip or web of photo prints from at least one supply reel to a corresponding collecting reel, over a viewing surface, is provided with a presence switch means activated by a capacitance reactive sensor or sensing antenna, the antenna being comprised of a metal plate mounted on the rear of the viewing surface such that introduction of an operating technician's hand, or other impedance, into a sensing region established by the antenna, in order to mark a defective photographic print, will activate the presence switch means to turn off the print-advancing drive means. Print advancement resumes when the technician's hand, or other object, is withdrawn from the antenna sensing region.

Abstract: A bicycle chainguard having a housing shaped to cover the top run of a bicycle chain with a curved forward end portion extending at least partially around a front sprocket. The housing has a pair of keyhole-shaped through-slots formed in a vertical wall. Clamps encircle seat and down tubes on the frame of the bicycle. Each clamp has a lug extending into a corresponding through-slot. Each lug has a shank with a diameter sized to fit within the through-slot, and an enlarged head sized to pass through an enlarged end portion of the keyhole-shaped through-slot. The longitudinal axis of each through-slot is oriented tranversely to the axis of the corresponding frame tube enabling assembly of the lug in the slot in a wide range of positions along the axial length of the through-slot to accommodate a range of angular orientations of the frame tubes for different model or style bicycles.

Abstract: A reversing switch comprises a mounting plate assembly with a hub extending forwardly through a wall of an explosion proof enclosure. A shaft is journaled for rotational and axial movement in the hub. A stationary contact assembly includes four circumferentially spaced contacts. A moveable contact assembly includes four circumferentially spaced contacts mounted on the shaft. The shaft extends through an external operator member at the forward end of the hub. The operator member is connected to the hub by a groove and flange arrangement preventing fore and aft movement but enabling rotational movement about the hub. A pair of forwardly extending side walls each with a transverse guide slot are connected to the operator member. A handle member with a pair of combined lever and cam arms is connected to the operator member and the shaft.

Abstract: Collapsible support stand for an electronic musical keyboard and the like consisting of a floor-engageable base member, a vertical post upstanding from the base member, a table top for supporting an electronic keyboard, and a rotary bearing member between the post and table top enabling the latter to be swiveled in use. Tapered joints between the bearing and base members, and the post, enable the stand to be assembled by press bits, and disassembled, without tools. The disasembled post and base member are held by straps and hooks against the underside of the table top in a compact carrying mode for convenient transport between points of use.

Abstract: An ash catcher for a barbecue kettle comprises an open top tapered body shaped to fit within a trapezohedral space defined by upwardly-converging legs between the bottom of the kettle and a shelf connected to the lower ends of the legs. It has a profile enabling it to be withdrawn sidewise between adjacent legs. The embodiment illustrated comprises a triangular base wall and three trapezoidal side walls converging upwardly from the edges of the base wall. Ash-deflecting panels are hingedly connected to the respective side walls and are pivotally movable between upper, outwardly-extended, ash-deflecting, working positions, and lower, retracted positions folded along the side walls. Removable hooks are connected between adjacent ash-deflecting panels to hold them in their ash-deflecting, working positions.

Abstract: One pair of emergency drag brake units are at each end of a vehicle. Each unit comprises a leg member with a serrate-toothed, ground-engageable foot telescopically movable in a support member carried by the frame. An elastic member is shown in one embodiment urging the leg downwardly to maintain pressure on the ground. Hydraulic jacks move the feet to braking positions engaging the ground while the axes of the leg members at each end of the vehicle are inclined toward the other end of the vehicle at an acute angle of 15.degree. or more relative to the vertical, thereby automatically enabling the so-inclined legs at the trailing end of a skidding vehicle to exert a greater frictional drag than the oppositely inclined legs at the leading end regardless of the vehicle's forwardly or rearwardly skidding orientation, and stopping it in a straight line. In one embodiment, the jacks swing the support members about pivots.

Abstract: A fishing jug comprises a floatable, hollow housing with a generally cylindrical side wall and top and bottom end walls. A hollow, inverted U-shaped handle with a removable seal plug is connected to the top end wall in communication with the interior of the housing. There is a reduced-diameter neck in the lower portion of the side wall having an external, toroidal surface of concave, parti-circular cross-section extending completely around the housing. There is a downwardly enlarged, flared lower ballast compartment between the neck and lower end wall. One or more hook-engageable loops are outstanding from the neck but are entirely recessed within a cylindrical projection of the side wall. The loops are offset from a minimum diameter section of the neck.

Abstract: A cap for wear by women to conceal a partial or total hair loss. It comprises a main fabric piece with a curved top margin and a straight bottom margin with hems along both margins. A hairpiece retainer band consisting of a fabric strip is sewn at its opposite ends along the inside of the bottom hem and provides between itself and the bottom hem a space to retain a hairpiece simulating bangs. An elastic drawstring is provided in the top hem to gather the curved top margin into a tight loop creating many large folds in the top and back of the cap when worn to conceal the back of the head and give the appearance of a full head of hair while applying tension to the bottom margin and retainer band to hold the hairpiece in place in a readily adjustable manner. In one embodiment, both the main fabric piece and the retainer band are elastically stretchable only in a direction parallel to the bottom hem.

Abstract: A tool bit and holder assembly is disclosed wherein a tool holder having a dove-tailed tang for connection with a mounting tool post is provided with a longitudinal groove in one face thereof; the groove having parallel, longitudinally extending and angularly inclined planar side walls intersecting a planar bottom wall of the groove. A single insert tool bit of trapezoidal cross section, having longitudinally convergent, angularly inclined, planar lateral flanks fits into the tool holder groove with one flank thereof engaging one side wall of the groove. A single wedge member, having angularly inclined and longitudinally divergent planar sides engages the other side wall of the groove and the other lateral flank of the tool bit so that application of force on the wedge to move the same toward the bottom wall of the tool holder groove exerts holding force on the tool bit along three right angularly related axes to securely hold the tool bit in fixed operative position.

Abstract: A voice prosthesis formed as a small diametered, flexible walled, generally linear tube having an air valve at its inner end, a flexible retention collar intermediate its ends and a mounting tab at its outer end is adapted for insertion into a surgically placed tracheoespohageal fistula following laryngectomy for restoring the power of speech to the user. A larger diametered, relatively short, curved tracheal tube or cannula provided with a retention collar at its outer end is insertable into the tracheal stoma to prevent closure thereof; the cannula partially surrounding and guarding the mounted prosthesis which transects the tracheal cannula, by passing through an elongated channel opening, which is open at one end and extends along the outer wall of the tracheal tube. The arrangement of the two tubes is such that the larger tracheal cannula is readily inserted and withdrawn from the tracheal stoma without disturbing the mounted voice prosthesis.

Abstract: A deck or pack of cards for playing multiple lottery games of the kind conducted or sponsored by various state governments or agencies. Examples of such games are "LOTTO", and subsidiary "PICK 4" and the "DAILY GAME" games where the odds favoring the "house" depend on the total of the numbers from which playing numbers are picked. The deck comprises a full set of cards including at least a multiple of ten cards with or without additional cards displaying a first, non-repeating group of numbers starting from a low of "01" up to a high equal to the total number of cards in the full set. At least some of the cards are subdivided and classified into a plurality of separate suits, each suit having a like number of cards displaying a second group of numbers repeated identically on the cards in each suit.

Abstract: A reversible magnetic therapeutic device comprising a two-sided flexible wrapper, a plurality of magnets sufficiently sized and spaced apart across its length and width to provide a therapeutically effective two-dimensional array with all the north poles and all the south poles on opposite sides, connecting devices along opposite edges enabling it to be wrapped in sleeve form about an ailing body part optionally in north or south pole configuration modes in which all the north poles or all the south poles respectively face inwardly. The device is used by wrapping it about the ailing body part first in the north pole mode until it is pain free, and, second, in the south pole mode to restore it to a healthy condition. Magnetic flux concentration in the range of about 200 to 600 gauss per square inch provides effective therapeutic results with significant improvement up to about 6400 gauss per square inch.