Abstract: A pole saw includes a long handle with cast end adapter, a cast saw-holding component pivoted to the end adapter for movement between an extended use position and a handle-adjacent storage position, and a saw blade pivoted to the holding component for movement between a blade-use position and a blade-protected position. The end adapter and holding component are cast aluminum for strength and light weight, and are pivoted together about an offset axis so that the blade and blade-holding component are positioned adjacent the handle in a partially protected position that is very compact; thus, no disassembly or separate tools are required. A folding lock mechanism includes a hook and pressure pad that cooperate for secure locking in the extended use position. An adjustable set screw eliminates blade looseness when in the use position.

Abstract: A saw sheath is provided which allows a saw to be inserted easily and smoothly, which prevents the inserted saw from easily falling out or rattling in the sheath, and which can suppress scraping-off of the inner wall by the blade tip of the saw caught by the inner wall. Storage structures of the saw sheath and a saw are also provided. The saw sheath (1) includes a flat sheath opening section (10) and a flat main sheath body (20), and a saw blade (41) is inserted into the main sheath body (20) via the sheath opening section (10). A pair of guide rollers (12) are provided at the entrance of the sheath opening section (10), on the left and right sides in the width direction of the entrance, and a grip penetration preventing section (15) is provided in the interior of the sheath opening section (10). The space from the guide rollers (12) to the grip penetration preventing section (15) constitutes an elastic grip-fitting space (16).

Abstract: A power transmission system including a component having a surface and a plurality of micro-defects is provided. The surface has a distribution of asperities has a second resonance frequency distribution that is substantially outside of the resonance frequency distribution.

Abstract: A saw blade guard unit is used in cooperation with a handsaw having a saw blade and a handle connected with the saw blade. The saw blade guard unit includes a flexible strip and a holder. The flexible strip has a head end, a tail end for positioning to a front portion of the saw blade of the handsaw, and a body between the head end and the tail end for guarding teeth of the saw blade of the handsaw. The holder is adapted for mounting to the handle of the handsaw.

Abstract: An ice auger covering apparatus includes a housing that has a bottom wall and a peripheral wall that is attached to and extends upwardly from the bottom wall. The housing has a break therein so that the housing includes a first portion and a second portion. The first and second portions are hingedly coupled together and biased toward each other in a closed position. A plurality of blade engaging members is provided. Each of the blade engaging members is configured to receive an edge of a bottom blade. The blade engaging members are attached to an inner surface of the peripheral wall. A pointed end of the ice auger is extendable into the housing and bottom blades of the auger engaged with the blade engaging members so that the housing covers the pointed end and the bottom blades.

Abstract: A woodworking machine is disclosed. The machine includes a cutting tool and a motor adapted to drive the cutting tool. The machine further includes a detection system to detect a dangerous condition between the cutting tool and a person, such as a person coming into contact with the cutting tool. A reaction system is provided to disable the cutting tool, such as by covering, blocking, destroying, wrapping, etc., upon detection by the detection system of the dangerous condition.

Abstract: The disclosure includes a device for protecting a blade of a knife, scissors or the like, consisting of two largely congruent partial surfaces that are designed as one piece with one another, of which at least one contains on essentially its entire surface an adhesive and which can be glued together while sandwiching the blade in between them, wherein the two partial surfaces are connected with each other along a folding edge containing a perforation and at least one of the partial surfaces contains a projection protruding beyond the congruence area.

Abstract: A preformed heat shrinking protective cover for a saw blade includes first and second portions each having opposite inner and outer surfaces. The second portion extends from the first portion at an angle relative to the first portion. The first and second portions are configured and adapted for a saw blade to be positioned in contact with the inner surface of the first portion. The first and second portions are made from a heat shrinking material so that when heat is applied to the cover, the second portion shrinks and folds over the first portion with the inner surfaces facing each other and teeth on a saw blade can be retained between the first and second portions. The resulting cover is close fitting and reduces the overall thickness of a saw blade with a protective cover.

Abstract: A circular hole saw blade is provided with a removable edge protector. The edge protector is in the form of a cylindrical loop of stiff elastic polymer material inserted coaxially into the blade alongside an inner cylindrical surface thereof. The loop has an inner axial end situated inside of the blade and an outer axial end disposed axially outwardly of the cutting teeth of the blade.

Abstract: A protective cover (4) for a folding saw in which the edge (1a) of the blade (1) can be nestled in place inside the housing groove (3) of the handle (2) having a semi-U-shaped cross section for housing the blade (1) in such a way that it is pivotally movable around the top end of the handle. A pivotal control lever (5) disposed at the bottom end of the handle (2) has a portion engaged with the tip of the protective cover (4). The protective cover (4) can be inserted into, and retracted from, the housing groove (3) of the handle (2) by the pivotal operation of the control lever (5). In this way, the protective cover (4) covers the edge (1a) of the blade (1) that is exposed from the housing groove (3).

Abstract: A preformed heat shrinking protective cover for a saw blade includes first and second portions each having opposite inner and outer surfaces. The second portion extends from the first portion at an angle relative to the first portion. The first and second portions are configured and adapted for a saw blade to be positioned in contact with the inner surface of the first portion. The first and second portions are made from a heat shrinking material so that when heat is applied to the cover, the second portion shrinks and folds over the first portion with the inner surfaces facing each other and teeth on a saw blade can be retained between the first and second portions. The resulting cover is close fitting and reduces the overall thickness of a saw blade with a protective cover.

Abstract: A folding saw in which either the edge of the blade, the handle or both are curved, to prevent the edge of the blade from being exposed when blade is folded so that the saw can be handled safely. The protective cover in which the edge of the blade can be nestled is placed inside the housing groove of the handle having a semi-U-shaped cross section for housing the blade. The protective cover is retractable with respect to the housing groove, and when the blade is folded, projects out of the housing groove and covers the edge, which may be exposed. The protective cover is preferably energized by a spring so that it covers the edge whenever the blade is folded.

Abstract: Protective sheath for saw teeth of a handsaw, including a base section, a protective slat and multiple magnetic members. The base section has an upper edge and a lower edge marked with British and metric system scales. The protective slat integrally extends from the lower edge of the base section to define a protective slot. The multiple magnetic members are inlaid in the base section beside the protective slot at predetermined positions for attracting the saw blade. This invention has a better attractively fixing effect. The protective sheath is applicable to different kinds of handsaws with various patterns of handles. In addition, the protective sheath also serves as a ruler.

Abstract: A cut-off blade assembly including a thin metal blade having an attachment portion by which the cut-off blade assembly can be attached to a dispenser, and a plurality of projecting similarly shaped triangular primary teeth. The triangular primary teeth each have two sides terminating in points and have bases adjacent the attachment portion that are aligned in a first direction along the blade so that their points project generally at right angles to that first direction. Edge surfaces on the sides and at the points of the primary teeth intersect a major surface of the primary teeth at an included angle of no greater than about 90 degrees to define a cutting edge at that intersection. The cut-off blade assembly further includes projections along one major surface of the primary teeth.

Abstract: A handsaw includes a blade having a toothed cutting edge pivoted to a handle. The handle includes a frame and a tooth protecting element. The tooth protecting element is pivoted to the frame to be swung between a working position and a retracted position. Each of the frame and the tooth protecting element includes a gap, whereby when the tooth protecting element is in a retracted position, the gaps are aligned to receive the blade. When the blade is in a retracted state, a portion of the cutting edge is exposed to enable purchasers or users to know what type of cutting edge is provided on the blade without having to move the blade to a working position.

Abstract: A surgical saw has a sector-shaped saw blade mounted on a shaft. The shaft is surrounded by a coaxial second shaft to which an eccentric member is mounted close to a saw blade and parallel therewith. Both shafts and thus the eccentric member and the cutting blade can be rotated with respect to each other and can be fixed in their rotational position. Depending on the rotational position, the saw blade is either covered by the eccentric member in a rest position to be inserted in a hollow bone, or is indexed in a position to be freely and gradually exposed to make a sawing operation possible.

Abstract: A hand-held, battery-operated rotary blade saw useful for cutting plastic clips or straps which secure a face mask to a football helmet. Several configurations, having differing safety shields, are disclosed. The device is an emergency/rescue tool to quickly remove a face mask from a football helmet allowing access to the face of a football player without removal of the helmet with its concomitant risk of cervical injury.

Abstract: A double sided hack-saw blade is formed from a thin elongated metal strip having opposed longitudinal side edges respectively provided with first and second parallel saw tooth cutting edges. The blade is designed for reversible securement to a hack-saw handle to allow alternative use of the first and second cutting edges. The cutting edges may be formed with different tooth pitches to allow a single blade to be utilized for various diverse cutting operations. A removable cover for engagement with one of the cutting edges when not in use is formed from a three sided member having a rectangular channel dimensional for frictional engagement with the hack-saw blade. The cover includes a lubricating wick to lubricate the cutting edge and also provides protection to a user.