Abstract: This bit has an axis and a tip end with an obtuse angle. There are multiple scraping surfaces, each facing counter-clockwise into a longitudinal recess in the tip end. Each scraping surface has a scraping edge at an angle of about 55° to 70° to the axis. Behind each scraping surface the outer surface of the tip end curves down to a rearward edge adjacent another of the longitudinal recesses, the rearward edges each being disposed at a sharper angle to the axis than the scraping edge so that there is some relief, allowing the scraping edge to be more pronounced and enhance its ability to dig into the metal of a deformed screw at points removed from the axis to get a good purchase on the screw.

Abstract: A foldable tubular rocking chair has inverted U-shaped elements secured between its front legs to give stability and to serve as a stop for the crosspiece of the pivoting arm unit when the occupant leans forward during launch. Arms have forward and upward handles to help occupant urge the arm unit down and raise herself to erect condition.

Abstract: The method includes providing a motor having a drive shaft mounting a pinion profile having an outside diameter and a mounting collar surrounding the shaft, the collar having an outside diameter less than the outside diameter of the gear. A gearbox wall formed with an opening having a generally ring-gear shape larger than the pinion and an inside diameter substantially the same as the outside diameter of the collar. The pinion is maneuvered through the opening and the collar is pressed into the motor-mounting opening. The invention is also the structure of the finished assembly including the opening.

Abstract: This bit has an axis and a tip end with an obtuse angle. There are multiple scraping surfaces, each facing counter-clockwise into a longitudinal recess in the tip end. Each scraping surface has a scraping edge at an angle of about 55° to 70° to the axis. Behind each scraping surface the outer surface of the tip end curves down to a rearward edge adjacent another of the longitudinal recesses, the rearward edges each being disposed at a sharper angle to the axis than the scraping edge so that there is some relief, allowing the scraping edge to be more pronounced and enhance its ability to dig into the metal of a deformed screw at points removed from the axis to get a good purchase on the screw.

Abstract: The bracket comprising an L-shaped mount defined by perpendicular plates having top and bottom bridging walls apertured in vertical alignment, the bottom wall formed with a blocking surface. The bracket also comprises a leaf plate having aligned upward and downward ears which pivot in the respective apertures, and the dimensions of the plate permit some vertical movement of the plate so that it can clear the blocking surface. The plate has a perpendicular flat tongue adapted to slip into a slot at one end of the shade to immobilize a portion of the power unit. The blocking surface keeps the plate from swinging open.

Abstract: This cake decorator has an axial cylinder and a powered piston controlled by twisting an axial rotary actuator switch in one direction or another.

Abstract: This power assembly has a housing with upper and lower housing portions and a frame of adjustable height in the housing. The housing mounts a worm gear in one of its portions, and the frame carries a worm on a fixed axis meshing with the worm gear. When the worm gear is changed for one of a different diameter, the frame carrying the worm may be raised or lowered to change the center distances so that the worm meshes with the new worm gear.

Abstract: A spool for a fishing reel comprising at least two side-by-side arbors of different diameters separated by a dividing wall having a diameter larger than the diameter of the larger of the arbors.

Abstract: This attachment assembly comprises a housing with channel-shaped walls with detents to snap over the valve housing. It also comprises an electrically powered rack and pinion drive which is fastened to the handle of the valve.

Abstract: For a baby stroller, an add-on assembly comprises a planar rectangular chassis pivotally attached to the stroller rear axle and carrying on its distal end a drive shaft with wheels. The chassis also mounts an electric motor having a spur gear engaging a ring gear in one of the wheels. At least one strut is connected at one end to the structure of the stroller well above the axle and at the other end to the rear of the chassis. The strut holds the chassis downward so that the drive wheels engage the pavement, supplanting the stroller rear wheels. Battery and controls for the motor are included.

Abstract: This sliding sash drive assembly includes a rack gear for the sash and a drive unit adapted to be mounted on the window frame and having a driven spur gear. An L-shaped engagement lever is mounted at its vertex on the housing and carries on its short leg a rack guide adapted to embrace the rack gear so that, as the long leg of the lever is moved, the guide moves the rack to a position at which the rack meshes with the spur.

Abstract: Starting from flat partly assembled components, this shelter, when erected, includes tubular roof-reinforcing and attachment beams disposed against roof segments and sidewalls.

Abstract: A process for modifying the face of a putter including the steps of milling out recess in a portion of the face, inserting a carrier strip coated on opposites with adhesive and inserting a plastic insert plate with the same dimensions as the recess. The insert plate is formed with an outward side having a group of closely spaced parallel V-shaped grooves running in one direction and another group of closely spaced parallel V-shaped grooves running in an intersecting direction, the grooves defining a plurality of pyramids having flat tops. The invention may also be described as a putter having such an insert and a plastic insert per se, described above.

Abstract: The hanger body includes a hook for engaging the “Ogee” bead and a clip for slipping over the top edge of the rear wall of the gutter. It also includes a pair of upstruck tabs having openings at their upper ends semi-permanently supporting a fastener at an angle appropriate for driving. As the fastener is driven toward the clip in installation, it drives through the opening of the first tab, and collapses the second tab against the clip to serve as a washer and a reinforcement to better support the hanger and gutter.

Abstract: Seat back rapidly deflates on occurrence of a rear end impact to permit upper torso of vehicle occupant to sink into the seat rather than be propelled forward. This permits his head to meet the headrest. Particulate material in headrest absorbs energy.

Abstract: Handbrake assembly for the wheelbarrow is normally "on" and comprises a brake lever pivoted to the wheelbarrow undercarriage. One end of the lever carries a shoe head, the other a fixture for the drive cable of a Bowden wire leading to a bicycle-type handbrake. A spring presses the brake shoe end of the lever so that it engages the wheel.

Abstract: Cabinet has wheeled base with hinged outward wing panels at the same level as the lower end of a coil into which an animal may be placed for treatment with a pulsed magnetic field. Leg units hingedly support the distal ends of the wing panels.

Abstract: In the housing is a motor and gear train driven by the motor, the train adapted to selectively engage a gear rack secured to the compression element to drive it down to squeeze the collapsible frosting container. When the train has moved into engagement, it closes a switch activating the motor.