Abstract: A trap includes an outer shell having an entrance at one end and a removable end plate at the other end. The outer shell has a number of holes for the passage of water inside the outer shell. An inner shell that also has water passage holes and that preferably is on the order of one half the length of the outer shell, is pivotally supported in the outer shell adjacent the entrance of the outer shell. The inner shell is pivotally supported about its center axis and has defined as part thereof a ramp that is weighted so that the ramp assumes the proper position to extend upwardly from the entrance.

Abstract: A power-driven screwing head for use with a hand held power drill comprises a shank which can be clamped in the chuck of the drill. A screwdriver bit held in the head and consisting of a shank part and a blade part forms part of a coupling, which when a predetermined depth of screw penetration has been attained, automatically interrupts transmission of torque from the shank to the screw.

Abstract: A chain saw sharpening apparatus is disclosed including a support member adapted in operation to locate about a chain saw in a predetermined relationship thereto and supporting two guide roller assemblies each including a pair of guide rollers disposed at opposite sides of said support whereby a file operatively supported on one said pair of guide rollers is disposed at an angle equal to the cutting edge angle of one set of teeth, while the other said pair of guide rollers operatively supports a file at angle equal to the cutting edge angle of the other set of teeth.

Abstract: The method of manufacturing such drill head by embedding the shank portions of hard, wear-resistant cutting elements in a mold containing metal powder, cold isostatically compacting the powder and shank portions to form the core part of the drill head, and hot isostatically compressing this core part to completely densify same.

Abstract: A trolling tackle device having a reversible power drive reel for raising and lowering a metal line and a heavy sinker in deep water trolling. A fishing line, bait and hooks are releasably attached adjacent the sinker and are thus to be lowered to the desired depth and are arranged to separate from the sinker line when a fish takes the bait. The drive is controlled by a switch so that when the sinker and tackle reach the desired depth, the switch is automatically opened and the reel is stopped with the tackle at a predetermined depth. When a fish is caught the fisherman throws the switch and the sinker line and sinker are pulled up by the power reel, preventing fouling of the lines by the action of the fish.When the sinker reaches the desired height the switch is automatically opened and the sinker held at a predetermined height.

Abstract: A hammer head has a longitudinal groove leading from the striking face to temporarily hold a nail and has a plurality of transverse grooves to receive the nail heads and provide nail head abutment surfaces, the bottom of the longitudinal groove being stepped upwardly between the transverse grooves away from the striking surface so that finishing nails will be accommodated.

Abstract: A device for stripping insulation from the end of electrical wiring is disclosed and includes hand-held, elongated strip members that are pivotally movable to and from a wire stripping position, a tubular member extending between the grip members and guiding the wire to be stripped therethrough toward opposed blade members. The opposed blade members are removably secured in a block in which the grip members are also pivotally mounted, the blade members engaging the grip members so that upon pivotal movement of the grip members the blade members are moved in a corresponding lateral motion to sever the insulation of the wire that has been inserted into the tubular member and between the blade members. An adjustable stop and spring member engages the grip members for normally urging the grip members to an open position and further providing a stop for selective location of the wire to be stripped, thereby precisely determining the length of insulation to be stripped from the wire.

Abstract: An attachment for use with miter box or other blade guided saws including a rigid frame member with upstanding links for connection of the frame to the blade portion of the guided saw and having downwardly directed links for receiving and holding a selected, second blade such that the second blade may be guided in the same manner and with the same structure that is used to guide the main or first blade. The normally provided handle of the guided saw may be utilized or a handle may be provided on the rigid frame.

Abstract: A nail holder for hammers is clipped to a hammer beneath the hammer head and includes a pair of juxtaposed, generally coextensive cantilever members of spring material having overlapping free ends which are located adjacent the hammer head and are resiliently biased toward one another to clamp the head of a nail gently between the free ends, with the shank of the nail projecting generally perpendicular to the cantilever members, in position for starting the nail, especially in relatively soft materials, the free ends facilitating freedom of movement of the free ends and selective release of the nail head from between the free ends subsequent to starting of the nail without disturbing the started purchase of the nail.

Abstract: There is disclosed an improved fastener and driver assembly which assures sufficient depth of engagement between the drive socket of the fastener and the working portion of the driver bit to provide efficient torque transfer from the driver to the fastener. The assembly includes a fastener having a recessed drive socket which is multi-lobular in cross-section, having an inner surface formed by alternating and smoothly joined flutes and lobes. The assembly also includes a driver for imparting rotational torque to the fastener which includes a head portion having a tip end and a center axis. The head portion of the driver is correspondingly multi-lobular in cross-section. The flutes are formed generally parallel to the center axis of the driver while the lobes of the head portion are tapered axially, converging toward the tip end of the head portion.

Abstract: A stake for animal traps comprising a vertical post portion with the upper end terminating in a transverse cross bar. Each end of the cross bar is notched to receive opposed spring loaded side frames of a rotating frame animal trap wherein the stake is able to support and stabilize the animal trap.

Abstract: A fishing tackle element which serves the dual purpose of a jig and a spinner of a fishing-tackle apparatus. The element comprises a body having a tapered polygonal cross section and a spear-shaped end portion, with the spear wings having twists to impart spin to the element when it is pulled through the water. The taper of the body is selected so that the center of gravity is approximately at the longitudinal center line.

Abstract: A hammer of the type that includes a column of vertebra members is made of vertebra members having mating upper and lower abutment surfaces. Parts of adjacent abutment surfaces are mating concave and convex surfaces that slide across each other during pivoting in one direction so that the length of the shaft passage through the vertebra members is not increased during flexing of the hammer. Another portion of each abutment surface requires lengthening of the shaft passage if the vertebrae are to pivot in the other direction. Consequently, a shaft extending through the shaft passage and fixed at its upper and lower ends to the head and handle, respectively, prevents flexing in one direction but not in the other. Furthermore, the overwhelming majority of the resistance to flexing is provided by the shaft, not by interference between vertebra members, so the shaft size for a given resistance to flexing can be relatively large.

Abstract: An axe sharpening device which comprises an adjustable two piece axe-clamping element having on the upper part thereof a file guide including a base oscillatably mounted on the upper part of the axe clamp with an upper part pivoted thereto and fitted with clamping means holding the file against a pivot pin. Resilient strips are provided on the axe clamping element to securely engage the axe head and to prevent it from slipping.

Abstract: A device for seating tongue and groove plywood is disclosed consisting of a member to be laid against the long side edge of tongue and groove plywood sheets, the member being adapted to be struck with a sledge to drive the opposite side of the plywood sheet into seated tongue and groove engagement. The member has a wood core bounded on the longitudinal sides by channel shaped metal lengths, the metal length on the plywood contacting side being faced with a resilient coating.

Abstract: A hand tool for slitting the sheath on flat, two to four conductor, plastic clad cables wherein one or more pointed knives project from the end of a handle into a chamber bounded, opposite the knife blades, by a sloping wall, one end of which defines an opening only slightly larger than the cable to be cut while the other end of the wall defines one end of an elongated opening throughout which the cable can be moved to assume a range of angles relative to the knives. A cable to be cut may be introduced into the chamber at an angle such that its surface does not touch the knives, and the tool can then be moved to an angle such that the knife points are driven into the cable and the sheath is cut, to facilitate separation and stripping of the conductors.

Abstract: A device for use with a portable electric drill having an abrasive wheel attached thereto for rotation thereby. The device includes a base for holding the drill in a substantially horizontal position and a clamp for holding a lawn mower blade. A rail is adjustably attached to the base. A rail follower is slidably attached to the rail for reciprocating movement thereon substantially parallel to the longitudinal axis of the abrasive wheel. The clamp is fixedly attached to the rail follower. When the rail is adjusted so that the cutting edge of the blade held in the clamp is in contact with the abrasive wheel and when the drill is activated to rotate the abrasive wheel, reciprocation of the rail follower will cause the cutting edge of the blade to be sharpened.

Abstract: Blade sharpening apparatus including two final honing wheels of substantially cylindrical geometrical configuration. The wheels are nominally five inches in length and six inches in diameter, the diameter of the exit end of the wheel being approximately 0.0015 inches greater than the entrance end. The wheel mounted on either side of a continuous blade strip rotate about parallel axes which are also parallel to the edge of the blade strip. A spiral helix is formed on the surface of each wheel such that when the wheels are intermeshed a nip running along and parallel to the blade edge is formed. The material from which the wheels are fabricated is selected to have sufficient resiliency so as to form a final facet on the blade of substantially convex geometry.

Abstract: A holder for detachable, apertured blades has two body sections connected intermediate the ends thereof for pivotal movement between open and closed positions. A blade received within a recess at one end of one of the body sections, when the holder is in open position, is retained on a projection which extends through and beyond the recess at the one end. A latching member mounted in fixed position on the other of the sections cooperates with the projection to interlock the blade in the holder when the body sections are pivoted to closed position. A detent at the free end of the handle portion of the holder releasably retains the two body sections in closed position.

Abstract: A shearing tool for synthetic resin tubes, in which a lower jaw is connected to the leading end of an upper handle portion, a lower handle portion is pivoted to said lower jaw at its leading end, an opening is provided in forward portion of said upper handle portion extending therefrom to the leading end of said lower jaw, an arcuate tube receiving recess is provided in the upper surface of said lower jaw, said shearing blade is pivoted in an intermediate position of the length to said upper handle portion within said opening, said shearing blade is provided at the rear and lower end with an engaging pawl, a rocking bar having notches in the upper surface is pivoted at one end to the leading end of a lower handle portion, a slot is provided in the rear portion of said shearing blade, a connection link has at one end a pin freely received within said slot and is pivoted at the other end to an intermediate position of the length of said rocking bar, a spring is provided for urging said rocking bar against said