Abstract: A shaving razor utilizes a trailing blade aligned along the longitudinal axis of the razor's shaving head for trimming and at least one leading blade for primary shaving. The cutting edge of the leading blade is aligned diagonally to the cutting edge of the trailing blade and therefore slices through the hair or beard at a different angle of attack than does a conventional blade, thereby reducing drag and yielding a smoother shave.

Abstract: A knife holder for a utility knife is disclosed comprising an elongated case forming a blade opening at the forward end and an interior guide for guiding a blade carrier and a blade carrier adapted for mounting a blade and being slidably mounted to the guide for selective longitudinal movement between a retracted sheathed position and an extended unsheathed position. The blade carrier has outwardly extending flanges for supporting a blade and a retainer tab for laterally retaining the rearward portion of the blade and the case has a retainer protrusion at the blade opening for laterally retaining the forward end of the blade so that the retainer tab and the retainer protrusion coact to retain the blade to stabilize the blade during usage.

Abstract: A floor covering cutter for cutting floor coverings such as carpets, has a shell handle (3) consisting of several parts and a cutting blade (6) that is gripped with its cutting head at an angle of deployment with respect to the longitudinal axis of the shell handle between the shell parts of the handle that are connected with a screw. They enclose a storage area (12) for spare blades on the inside and present a gripping contour on the outside. The cutting blade is positioned with its cutting head at a slight forward angle of deployment with respect to the theoretical mid longitudinal axis (7) of the handle shell, while the handle shell, on the end opposite from the cutting blade (6), presents a steadily expanding outer cross-section (4) with flattened contours in the area adjoining the gripping surface (3). In the storage area (12) are kept blades standing on one edge. The two shell parts (1,2) are connected by a joint and held together by a knurled screw (10).

Abstract: A tool having parallel cutting blades for cutting matching seam edges from two pieces of material, such as two pieces of carpet. The tool is comprised of an insulative housing having a pair of rotatable cutting blades disposed on opposite sides thereof in substantially parallel relationship; an adjustable guide mechanism disposed adjacent to each of the cutting blades for holding the material to be cut in proper alignment with the cutting blades; and a base member on which the housing is mounted. An electric motor is disposed inside the housing for rotating the cutting blades via a worm gear mechanism. The guide mechanism preferably includes a spring-mounted shaft, which is adjustable in a vertical direction to provide the proper spacing between upper and lower members of the guide mechanism, in accordance with the thickness of the material to be cut.

Abstract: A knive having a tubular handle and provided with an open end for receiving a pair of blade clamping members in the form of leaf springs, one of the leaf springs being longer than the other leaf spring and having a projecting tab for insertion into a hole in the shank of a blade to be coupled to the handle. The inner end of the longer leaf spring is coupled to a slidable member having a knob projecting through and movable longitudinally of a slot in the handle. Movement of the slide member in one direction causes the projecting tab on the longer leaf spring to become exposed for coupling the blade shank to the leaf spring. Movement of the slide member in the opposite direction causes the longer leaf spring to be retracted fully into the handle so that the blade will be centered between the two leaf springs while projecting outwardly from the handle to expose the cutting edge of the blade.

Abstract: A dynamically balanced apparatus having a reciprocating member includes an eccentric shaft operatively connected to a motor output shaft, and a drive member operatively connecting the eccentric shaft to the reciprocating member for driving the reciprocating member upon rotation of the eccentric shaft. An eccentric flyweight is mounted on the output shaft to be rotatable therewith for canceling the vibration or inertia force developed by the motion of the reciprocating member. Also included in the apparatus is a vibrator also driven by the eccentric shaft to vibrate in a direction perpendicular to the reciprocating direction. For eliminating the vibration inherently arising from the rotation of the eccentric shaft and acting in the direction perpendicular to the reciprocating direction, at least one counterweight is carried on the vibrator to be movable therewith for canceling such inherent vibration in the direction questioned.

Abstract: A clearing saw comprises a circular saw blade which is rotatable relative to a portable frame and whose periphery is at least partly exposed to permit sawing and cutting through a tree-trunk. With the frame of the saw there is associated at least one arm which is pivotal on a joint and provided at its free end with an abutment member located outside the periphery of the saw blade and adapted, when desired, to be applied against another tree-trunk adjacent the trunk to be cut, in order during cutting of the first trunk to positively maintain the saw blade at a distance from said other trunk.

Abstract: One or more recesses are provided in a shaving cream can for releasably engaging the head or handle, or both, of a safety razor for supporting the razor on the can. The recess or recesses may be provided in the lid of the can or in a band releasably attachable to a can when it is desired to discard the original lid.

Abstract: A tool for cutting insulation from electrical wire including a housing; an insert receivable by the housing, said insert including a wire guide opening and a grooved shoulder approximating the size of the wire to support the wire during the cutting operation; and one or more blades adjustably and transversely mounted to the longitudinal axis of the shoulder groove for cutting the insulation from the wire as the wire is pulled through the wire guide opening and along the groove of the insert. The insert is readily removable, being locked in place during use. In this manner, inserts having varying diameters of openings and grooves approximating the diameter of the insulated wire to be stripped may be employed.

Abstract: A bump-actuable filament feed for vegetation trimmers; when the cutting length of filament breaks or wears short, the user without interrupting cutting simply bumps the cutting head on the ground deploying a fresh cutting-length of filament. Bumping causes a spring-restored spool latch to yield an increment of spool rotation, feeding a corresponding increment of filament from the spool. For replenishing the filament supply when exhausted, the spool snaps out in one embodiment on pressing a button, and a fresh spool as easily snaps into place.For applications in which bumping the cutting head against the ground is not desired an analogous operation is provided by adaptation of the basic structure.

Abstract: An elongate chain support blade of a chain saw is shaped so as to provide clearance between respective runs of the chain and longitudinal edges of the blade, thereby reducing friction and reducing oil usage. Other aspects of the invention reside in a chain guide wheel on the blade providing the chain with a short inclined chain run at the forward end, and different forms of chain-tensioning devices.

Abstract: An electric motor or gasoline engine driven pruner by which to facilitate the cutting of generally inaccessible or hard to reach trees and shrubs. The pruner includes a rotatable drive shaft, an elongated tubular drive shaft housing surrounding the drive shaft, an electric motor or gasoline engine affixed to one end of the drive shaft housing to rotate the drive shaft, and a cutting head affixed to the outer end of the drive shaft housing to efficiently cut trees and shrubs. A unique arrangement of telescoping, concentrically aligned housing sections surrounds an arrangement of telescoping, concentrically aligned drive shaft sections to permit the pruner to be extended to reach high, and otherwise inaccessible branches and limbs or collapsed to form a compact assembly for easy transport and/or storage.

Abstract: The disclosure describes a cutting machine for flat material, such as fabrics, sheeting and the like, with a compressed-air-cooled trivot, a trivot drive which is supported on a foot plate by means of a support such as a column, two blade guides having the shape of flat strips being disposed at the support, said blade guides delimiting a gap in which is guided the trivot, which oscillates parallel to the longitudinal direction of the support, a cooling channel extending in the support approximately parallel to the trivot and running more or less the length of the support, a compressed-air-operated vortex tube connected to the cooling channel, and a means for introducing cooling air into the cooling channel for cooling the trivot, blade guides, and support.

Abstract: A guard for a grass and weed trimmer of the line-cutting type, the guard having a body attached to a handle. A rotatable head mounted to said handle flailing the line in a plane of rotation around an axis of rotation. The body has a skirt extending partway around the axis, a cut-off blade in the path of the flailing line to cut-off excess line, and a deflector downstream from the blade to deflect the cut-off segments away from the plane of rotation, toward the ground.

Abstract: A cutterhead is disclosed for a motor-driven vegetation cutter and has a rotating housing and a spool journalled therein on which a cutting filament is wound. The spool has a plurality of cams, which coact with at least two spring-loaded coupling members pivotally mounted on the housing for paying out the cutting filament in incremental lengths. Each of the coupling members is pivotally journalled on its own pivot mount on the housing such that it is pivotable in dependence upon centrifugal force. The pivotable coupling members are synchronously displaceable and are coupled to one another for this purpose via an intermediate ring which is supported on the housing so as to be freely rotatable with respect thereto.

Abstract: A hand held hacksaw which has a handle (20) formed of two pieces with pair of parallel recesses (22) inside. A support arm (28) with, a straight end and an angular end, is inserted into the upper recess also a hacksaw blade (32) is placed in the lower recess, a groove (30) is formed in the arm at the intersection of the blade for support and stability. A screw (38) and nut (40) hold the handle together and unify all of the elements in their preselected position.

Abstract: A cutter of standing vegetation having a boom to which is connected at one end a hinge from which projects a reciprocating type sickle, and is suspended centrally from a pivoting handle to which is connected a control rod which runs parallel to the greater length of the boom and is connected in a pivoting fashion to a control lobe which is connected at right angles to the nonmoving part of the sickle. A motor and gearbox assembly which produces reciprocating motion mounted at the other end of the boom, having a reciprocating power-take-off to which is clamped a reciprocating flexible drive shaft which runs to and is clamped upon the moving part of the sickle and is supported, braced, and channeled, by a flexible covering which terminates in two extension points, one of which is near the reciprocating power takeoff, the other of which is near the moving part of the sickle, which terminates in another reciprocating power-take-off to which a detachable saw blade is mounted.

Abstract: A holder of improved construction for mounting a saber saw blade on a drive means for reciprocation. The holder includes means defining a slot for receiving the blade, and means coupled with the support means for retaining the blade in the slot and for preventing movement of the blade relative to the support when the support and blade are reciprocating under the influence of the drive means. The holding means in several embodiments includes cam members which are received in notches in respective blades. Other embodiments relate to the formation of blade-receiving slots by moving wall means into proximity with recesses in side faces of elongated members.

Abstract: A handle for use in connection with tool tangs of a wide variety of sizes and shapes includes a handle body molded of a plastic material and formed with a main blind bore whose end wall is formed with a centering bore of smaller diameter. The main blind bore serves for receiving tapering tangs of largest cross section, or a tubular insert. The insert has a first axial bore opening at one end of the insert and a second axial blind bore opening at the other end of the insert. The end walls of the first and second blind bores are interconnected by a passsage of reduced diameter. The jacket of the insert is split by an axially directed slot so as to facilitate plugging of the insert into the main blind bore in the handle body. The inner surface of the main blind bore and the outer surface of the insert are knurled to prevent rotation of the insert. The tapering tangs of the tool are held in position in the handle at two axially spaced areas.

Abstract: A plastic disposable razor having one or more blades with a movable permanently attached sliding cap or cover for exposing and protecting the blade edge selectively.