Abstract: A device for propelling a bicycle or the like comprising in combination, a frame having wheels and an overlying cargo carrier instrumentality, a power pack disposed thereon adapted to drive said wheels, hitching instrumentalities connecting said frame to the bicycle rearwardly thereof, and suspension instrumentalities disposed between said wheels and said frame whereby road irregularities and the like are absorbed by said suspension instrumentalities and in part by said hitching instrumentalities, said hitching instrumentalities providing the bicycle a complete normal range of motion.

Abstract: Disclosed herein is a mailbox brace which includes a horizontal planar shelf upon which an end portion of the mail box rests, an inverted U-shaped strap overlying the mail box above the shelf portion and fastened to the shelf by means of outwardly turned horizontal flanges through nuts and bolts, a vertical plate joined to the shelf at respective edges thereof so that a substantially L-shaped bracket in cross section is formed, in which the vertical plate is affixed to a support post by means of screws, or by means of a horseshoe clamp which straddles the post and the vertical plate having an aperture plate disposed on a face of the vertical plate opposite the post so that the horseshoe clamp termini pass therethrough. The termini are threaded and suitable nuts are provided for affixing the horseshoe clamp in a secure manner.

Abstract: An adapter that converts any normal chainsaw into a winching type towing machine for use by hunters who fell large game such as elk or deer, and must haul their fallen prey over rugged and remote terrain. The adapter replaces a chainsaw chain and guide bar, and bolts into the same position. The adapter comprises a drive chain and housing with a cable guide bar in the front and a tow bar in the rear. The housing contains a drive sprocket connected to a cable drum via a transmission that engages or disengages the drive train. An automatic braking system prevents the cable drum from paying out cable when under a load which may occur when the chainsaw motor is idling and a centrifugal clutch has disengaged the drive power. The adapter folds up into a compact unit capable of being transported anywhere. Additionally, the invention is not limited to use by hunters, but may be used whenever a motorized winching operation is called for.

Abstract: An orthotic insert for use in various types of foot gear consisting of a first blank and a second blank fused together. The first blank is a flexible pad generally contoured to the bottom of a person's foot and the second blank is more rigid and contoured to the calcaneal and arch regions of a specific individual's foot. In combination the first and second blank form an orthotic insert which offers support to and is resiliently deformable in the heel area and flexible in the toe area thus emulating the requirement of the human gait cycle.

Abstract: A variable venturi carburetor including a fuel bypass duct bypassing the fuel metering portion of the fuel jet, the fuel jet being provided with an opening at its upper portion which opening is in opposed relation with the inlet of the fuel bypass duct for easily delivering fuel bubbles created in the fuel jet and also provided with a fuel inlet at its lower portion which is so constructed as for fuel to readily flow into the fuel jet.

Abstract: A lawn umbrella expansion device in which an enlarged canopy is provided with a centrally disposed pole cap to engage the tip of an umbrella pole and thereafter be unfurled and stabilized with canopy poles to provide a greatly increased containment area.

Abstract: A variation of fuel vaporizer for internal combustion engine is provided that includes an inlet guide vane assembly, and a turbine assembly, the turbine assembly being mounted between the carburetor and intake manifold of the internal combustion engine.

Abstract: An insulative hot tub or spa cover appearing in two symmetrical halves biased toward each other on a medial edge each half comprising an inner foam core capped on a peripheral edge by a C-shaped channel and covered on an upper and lower surface by a softer upholstery foam then entirely enveloped by a heat sealed vapor barrier and ultimately with a vinyl outer cover riveted to the channel by a trim strip thereby eliminating the need for any sewn seams. The entire spa cover being designed to come in sealed registry and rest upon the rim of a hot tub, spa or the like.

Abstract: Disclosed herein is a method for forming a heat exchanger tube comprising the steps of inserting an inner tube within an outer tube, interposing therebetween a heat conductive fin element and expanding the inner tube thereby causing frictional engagement of the inner tube, outer tube and interposed fin.

Abstract: A water saver for the water closet of a flush toilet, which allows the operator to vary the amount of water being used according to the requirements of the situation. A lever on the exterior of the water closet controls the egress of water from a separate secondary reservoir contained within the water closet. Varying the position of the lever varies the amount of water which escapes from a trap door on the secondary reservoir attached to the lever. When very little water is required for the flushing process the secondary reservoir remains undisturbed. However, if the entire amount of water contained within the water closet is required then the secondary reservoir will empty completely because of the position of the control lever. The amount of water that escapes from the secondary reservoir, which varies from all to none, is determined by the position of the trap door in relation to the walls of the reservoir, which varies the effective volume of the reservoir.

Abstract: An attachment for single strand and multi-strand stringing blocks used during the stringing of high tension electrical wires between electrical suspension towers. Since electrical towers are not all disposed in a linear array an angled pull has a tendency to cause a lead cable to jump out of a groove in a pulley sheave on the stringing block. When in a first position roller guides on a stringing block attachment engage the lead cable and prevent it from sliding out of the groove in the pulley sheave. In a second position the rollers are retracted so they will not engage the conductor wire which follows immediately behind the lead cable. Support arms for the rollers are rotatably attached to the framework of the attachment which is mounted on the carriage of the stringing block.

Abstract: An intake air booster for boosting air flow in an internal combustion engine or the like which includes a first air passageway communicating directly with an engine intake manifold having a plurality of interleaved rotating and stationary blades, the rotating blades forming a second internal passageway, the stationary blade providing an outer housing, so that air passing through this first passageway will be stirred by virtue of the interaction against these blades; the second air passageway formed by an internal band contained on the rotating blades includes caps on bottom and top portions of the passageway provided with a plurality of inlets and outlets and a source of compressed air adapted to engage the cap and by so doing providing additional air through the air passageway while simultaneously increasing the rotation of the rotary blades in the first air passageway, the source of compressed air including a reservoir and appropriate valving and sensing means which selectively engage the compressed air for

Abstract: A method for determining the neutral axis of a foot or the like, as well as an apparatus therefore. The neutral axis can be conveniently defined as the orientation of the subtalar joint wherein its relationship to adjacent bones is such that there is no movement in that area. Consequently no loading is transferred to adjacent areas. The method includes placing a level indicator on the sinus tarsi portion of the foot and rotating the foot relative to the vertical axis defined by the leg until the indicator on the level is centered, indicative of the neutral position. The level structure includes a hinged wing attached at one extremity to the indicator and a tether so that in the preferred form the level indicator is disposed in substantially a horizontal plane. Disposition of the indicator on the patella is also contemplated as being a part of this invention for orienting the foot when it is covered by a boot or the like.

Abstract: The invention relates to an apparatus for feeding single sheets from a stack of paper stored in a magazine to the platen of an office machine. The apparatus is capable of being mounted on the office machine, the drive of a separate-feed roller frictionally engaging the stack of paper being effected by means of the platen in such a manner that when the platen is rotated counter to the direction in which the paper is inserted, the separate-feed roller is driven in the direction of paper insertion. In order to prevent the separate-feed roller from hindering paper insertion by the platen, the magazine pivotally engages a control cam. The control cam is driven by the platen in such a manner that it pivots the magazine against the separate-feed roller when the platen is rotated counter to the direction of paper insertion; when the platen is rotated in the direction of paper insertion, the control cam pivots the magazine away from contact with the separate-feed roller.

Abstract: An air separator for removing air from aerated oil with an impeller on a disc mounted on a hollow drive shaft within an impeller chamber, so that oil which enters the impeller chamber is impacted by the impeller disc, causing cavitation so that deaerated oil is driven from the chamber by centrifugal force while the eliminated air is collected through apertures in the hollow drive shaft and thereafter vented.

Abstract: An insert for use in ice skates and the like which includes a blank having a top layer with an upper surface provided with a contour substantially complemental to the plantar surface of a person's foot, the top layer formed from a suitable material to resist abrasion, and absorb perspiration. The top layer is bonded to an intermediate layer formed of resilient material, a bottom portion of the intermediate surface affixed to a lower surface having a bottom layer provided with an alignment device for registry with the center line of a skate whereby deformation of the blank occurs along its longitudinal axis thereof, directly above the skate blade, the deformation of the blank causing a cradling and supporting effect upon the foot disposed within the skate so as to provide not only better centering over the skate blade, but also an improved load transmission from the foot through the leg resulting in overall better balance and skate edge control.

Abstract: A trigger mechanism for a firearm such as a pistol having a firing pin spring loaded into a firing position and held in a retracted position by a spring loaded sear together with a sear trip bar pivotally movable by a manually operated lever pivotally mounted on the exterior of a housing for the firearm trigger into retaining engagement with a release lever spring loaded against the trigger so that manual actuation of the trigger permits movement of the release lever out of engagement with the sear trip bar into tripping engagement with the sear for releasing the firing pin to fire the firearm.

Abstract: Disclosed herein is a device to facilitate the coiling, storage and handling of non-collapsable yet flexible types of hoses, such as those used in conjunction with firefighting equipment. The invention comprises two, flexible, U-shaped clamps molded back to back in a figure "8" configuration. In addition, two flexible elongated straps emanate from either side of the clamping device and adjustably connect to one another providing a convenient purchase from which the coiled hose can be hung.