Abstract: The bicycle power pack consists of a frame mounting a motor and transmission mechanism, ground engaging wheels carried by an axle journaled to the frame and a hitch assembly extending forwardly from the frame and attachable to the bicycle rear axle. In order to prevent weight transfer from the power pack to the rear axle of the bicycle, the center of gravity of the power pack is located directly above the axle, thus improving the stability and maneuverability of the bicycle and power pack combination.

Abstract: Components such as fiber optic devices which have elongate, flexible leads subject to damage if kinked or otherwise mishandled are packaged in a container of molded plastic construction having a first recess in which the body portion of the component is retained and a second, circular recess in which the leads are wound. The bottom wall of the circular recess is provided with spaced holes through which a vacuum is drawn to advance the leads into this recess in the packaging process.

Abstract: In a pressurized aircraft, the net air leakage occurring while the aircraft is pressurized at altitude, i.e., the difference between the mass flow rate of all air supplied to the pressurized compartments of the aircraft and the mass flow rate of all air intentionally discharged to the external ambient, is calculated by a system employing air mass flow gauges in the air supply and discharge ducts. Increases in the rate of leakage over time furnish an indication of deterioration of the aircraft structure such as that caused by fatigue and stress corrosion of the external skin.

Abstract: A small, fractional horsepower, low voltage electric motor with an eccentric weight on its output shaft is attached to the electrode clamp of a hand held welding electrode holder. The oscillating or orbiting motion generated by rotation of the eccentric weight is transmitted through the electrode clamp to the welding rod. Higher quality welds and reduced sticking and burn through result.

Abstract: The hand grip exercise device has a frame with spaced, parallel side rails, an end cross rail connecting the first ends of the side rails and a second cross rail parallel to the end cross rail and connecting the side rails at points spaced from the ends thereof, and a number of elastic cord lengths connected to and extending between the side rails in spaced, parallel relation to one another and between the two cross rails. Provision is made for connecting wrist-encircling straps to the extended portions of the side rails so that the device may be easily used by an individual having only limited coordination.

Abstract: In order to prevent the edge of a floating pool cover from rolling downwardly into the water, as would occur if a child fell or stepped onto the cover, upwardly open channels, the outer walls of which are notched at spaced intervals, are affixed to the pool walls immediately above the water level and extend along substantially the entire periphery of the pool, and anchors are attached to the edges of the cover at the same intervals as the notches, each anchor projecting laterally from the cover and having a shank terminating in a bulbous end which may be dropped into the channel.

Abstract: A hemostatic clip which permits selection of the clamping pressure applied by the clip to tissue is of single piece plastic construction and C-shaped configuration. A transversely extending region of reduced thickness at the center of the mid-portion of the clip defines the hinge axis of the clip. Cooperating latching members extend from the mid-portion on opposite sides of the reduced thickness region. A dispenser for the clips has a magazine for storing a series of clips, a dispensing mechanism for advancing clips from the magazine, and an applicator tip receiving the advanced clip and having adjustably spaced plates for determining the degree to which the clip is closed.

Abstract: A dispenser for applying a treatment solution to selected strands of hair includes a reservoir and a dispensing nozzle. The nozzle is an elongate, preferably conical member, having one or more slots extending from and dividing the tip into tines. The side walls of the slot converge inwardly from one side of the nozzle, a through bore extends from the base of the slot to the base of the nozzle, and at least one of the tines is shorter than the other. The reservoir may be a squeezable bottle or, in the preferred embodiment, an open top container having a handle projecting from one side with a lever arm pivotally connected to the outer end of the arm and mounting a plate-like piston slidably received in the container.

Abstract: Components such as fiber optic devices which have elongate, flexible leads subject to damage if kinked or otherwise mishandled are packaged in a container of molded plastic construction having a first recess in which the body portion of the component is retained and a second, circular recess in which the leads are wound. The bottom wall of the circular recess is provided with spaced holes through which a vacuum is drawn to advance the leads into this recess in the packaging process.

Abstract: A hemostatic clip applicator tool includes a replacable magazine for storing a series of clips, a dispensing mechanism for advancing clips from the magazine, and an applicator tip which receives the advanced clip and closes the same to a controlled degree of clamping pressure.

Abstract: A cable spacer of the type used in overhead power transmission systems includes a body provided with cable engaging hooks, each hook having a seat in the form of a cylindrical segment. A cable retainer is provided for each seat and consists of a cylindrical body having at least one semicylindrical groove and a handle projecting radially outwardly. The retainer is slidably receivable in the seat from either end thereof and rotatable between a first position in which the cable may be inserted into the groove and a second, cable retaining position in which the groove is within the confines of the seat.

Abstract: A pad on which a user lies to apply pressure to selected points on the body consists of two fabric panels and a number of balls having fabric engaging tabs at diametrically opposed points. The balls are placed on one of the panels at the points of desired pressure application and then covered by the second panel. The two panels may be connected together and carry grid markings to assist in positioning of the balls.

Abstract: The splash or landing pool of a water slide has an entry zone of substantially increased depth relative to conventional splash pools and a shallow exit zone leading from the entry zone. The entry zone is provided with a false floor at a depth such that a child can walk thereacross, the false floor being a close mesh net which can safely decelerate an adult who has improperly entered the pool from the slide.

Abstract: Knockdown units forming drawers or bins include a one-piece molded plastic bottom and side panel unit with the side panels being connected to the bottom panel by reduced thickness thickness zones and molded plastic front and rear panels. Interengaging connecting means are formed integrally at the upper portions of the side panels and the upper ends of the front and rear panels.

Abstract: Panels for forming the four sides of knockdown constructions such as file cabinets or shelf units are formed with interlocking side rails allowing for assembly without the use of separate fasteners or tools.

Abstract: A one-piece, elongated, molded plastic clamp member for forming poster and picture frames or other sheet holders has a base portion, rigid outer, front and inner wall portions connected to a lateral edge of the base portion by a web type hinge, and one or more planar spring portions connected to the base portion and engaging the front and inner wall portions at their juncture to provide overcenter biasing between the closed and open positions of the clamp member. The base portion may be attached to a separate backing panel or may be extended to form the backing panel of a frame.

Abstract: The invention relates to a rear view mirror extension device for use with vehicles such as light duty trucks and the like which have, as standard equipment, a mirror connected to a tubular support arm secured to a mounting bracket on the vehicle door. The device includes an inverted U-shaped extension member having one leg thereof rotatably received in the vehicle mount in place of the original support arm. The support arm and the other leg of the extension member are each rotatably received in a clamp member. By suitably rotating the extension member and the clamp member relative to each other and the vehicle the mirror can be moved from a position closely approximating its original position near the vehicle to an extended position wherein it is spaced outwardly from the vehicle by the extension and clamp members. The driver can adjust the position of the mirror outwardly to compensate for wide loads or tows which would otherwise unduly obstruct his rearward view.

Abstract: A holder for a plurality of overhead projection system transparencies includes a ruler-like bar provided with suction cups for attaching the bar to the stage of the projector and U-shaped arms for engaging the holes provided along one edge of each transparency. The rear legs of the arms are rotatably received in bosses provided along the rear edge of the bar and the front legs releasably engage posts at the front edge of the bar.