Abstract: A square saw tooth having four cutting edges of the type which is rotatable about its axis on a saw disc to present a fresh cutting edge when the radially outermost edge wears out has carbide wear plates covering the high wear areas of its attack face and providing its cutting edges. A wear plate is provided at each corner of the attack face, and each wear plate has a flat rear surface for attachment to the tooth body and a front surface of a complex shape, having plateau surface areas at the corners, where the plates are thicker, and curved surfaces which recede from the plateau areas toward the interior of the attack face, so that the plate recedes in thickness away from the plateau area. This construction helps provide more uniform wear over the surfaces and edges of the attack face for a more efficient consumption of the wear plates. In an alternate embodiment, the plateaus are provided at the corners of a tooth having a spherically concave attack face so as to inhibit wear of the corners.

Abstract: A folding can opener and an improved method for opening cans are provided. The can opener includes a handle; a cutter pivotably mounted to the handle; and a locking mechanism for the cutter. The cutter can be locked in an operating position in which a pointed tip of the cutter is adapted to pierce the can. The cutter can also be locked in a storage position in which the pointed tip is folded towards the handle and shielded by the handle. The locking mechanism includes a barrel cam formed on the cutter and having a lug for engaging a seam of the can and pairs of indentations having camming edges. The indentations are adapted for mating engagement with pawls formed on the handle (or separate pins placed between the handle and cutter). The handle is formed in a wish bone shape which permits the pawls to flex to allow engagement and disengagement of the pawls with the indentations.

Abstract: A saw tooth for a circular saw for a feller including, in one embodiment, a square saw tooth head having a frusto-pyramidal shape to be mounted on a holder, and the saw tooth head includes seats for receiving inserts. The inserts are provided with cutting tips and cutting edges while a clamp nut retains the inserts against the tooth head. When the edges and tips are worn or damaged from impact, the inserts are first replaced. When the seat of the head is damaged, the tooth can be rotated.

Abstract: A device for slicing a bagel equally in half, or in thirds, or in quarters without having to make any adjustments for such desired variations. The device is simple in construction and serves to operably guide a knife through a bagel. Other foodstuffs such as buns, rolls and muffins including soft textured foodstuffs can be accommodated without deforming or destroying the foodstuff. The device is comprised of a rectangular base having four side guide rods at right angles to the base and placed so as to hold a foodstuff central to the width of the base. Additionally, a set of paired end cradling rods at each end of the base taper outwardly as they extend upwardly. The end cradle rods accommodate bagels of various diameters thereby preventing end to end movement of a bagel while it is being sliced. The end cradle rods serve to guide a knife blade between the slots formed by the adjoining, paired cradle rods.

Abstract: A stapler includes a staple magazine rotably connected to an operating assembly. The operating assembly rotates around a shaft in response to pressure applied by a user to a operating handle. The staple magazine includes a plurality of staple clips capable of holding different size staples. The stapler includes means for determining a desired staple size. The staple magazine is rotated by the user to select a desired size staple. A stopper assembly, slidably mounted on a base of the stapler, is positioned by the user to limit and guide a front edge of a stack of papers being stapled. The means for determining a desired staple size and the stopper assembly are free from interference with each other. The stopper assembly is constructed so that a portion contacting the front edge of the stack of papers remains perpendicular to the front edge during a stapling operation.

Abstract: A novel method and apparatus for cutting a slit in the grip of a golf club to facilitate the removal of a golf grip from a golf club is disclosed. The disclosed grip removing device includes a mountable base having a club receiving portion and a back portion; a cutting member secured to the mountable base proximate the club receiving portion of the mountable base; and an alignment member movably secured to the back end of the mountable base. The disclosed method includes inserting a butt end of a golf club into the grip receiving portion of the grip removing device, positioning the cutting member to engage the grip, and pulling the butt end of the golf club from the grip receiving portion of the grip removing device to slit the grip along a longitudinal line to facilitate removal of the grip from the shaft.

Abstract: Marks such as patterns, designs, numbers, or the like are cut out of a mark sheet or mark sheets placed on a glass base by a thermal cutter having a heated cutting bit. The thermal cutter is movable two-dimensionally over the mark sheet, and is also vertically movable between an upper position in which the thermal cutter is lifted off the mark sheet supported on the base and a lower position in which the thermal cutter is lowered in contact with the mark sheet supported on the base. The thermal cutter is angularly movably supported on an eccentric shaft that is rotatable by a stepping motor. The thermal cutter has a cutting bit resiliently urged by a spring for stable positioning. A range or ranges in which desired marks are to be cut out of a mark sheet or mark sheets can be confirmed by being traced by the thermal cutter before the marks are actually cut out. When mark numerals indicative of desired numbers are to be cut out, such mark numerals are rearranged and displayed for the operator's information.

Abstract: A machine having a hydraulic, single acting, spring return cylinder for moving a punch toward and away from a die in order to cut a hole in a steel frame member or the like. A laser is built into the machine for emitting an aiming beam from the punch. A hole can be punched exactly in position on the work by projecting the aiming beam to a preformed mark thereon.

Abstract: A slicing machine in which the clamping device for pressing the product on the slicing machine carriage toward the stop plate is provided with a device for inactivating the blade motor and the drive for the stop plate so that, when the clamping device is in its upper inoperative position, the blade motor is deactivated and the stop plate is brought into the plane of the blade or forwardly thereof to prevent injury to an operator.

Abstract: A slicer guide suitable for use with a food item such as a loaf of bread, certain vegetables or the like is provided. The slicer guide includes a base having a generally planar upper surface. A flange is affixed to the base. The flange includes a top surface suitable for guiding a knife as it travels alongside the top surface, and a plurality of spaced-apart generally parallel grooves therein. A cutting board having a generally planar cutting surface suitable for abutting the product to be sliced thereon is adapted for slidable insertion into a selected groove. The slicer guide is used with the knife and the product to provide slices of thicknesses corresponding with the selected groove. The slicer guide is generally used for food items including bread and items such as cucumbers, tomatoes, peppers, mushrooms and the like.

Abstract: A compound miter saw with an adjustable/bypassable bevel stop is disclosed. The compound miter saw includes a turntable rotatably mounted on a supporting frame. A power driven saw blade is pivotally mounted to the turntable and moves along a predetermined path from an upper raised to a lower operational position that includes a saw blade slot in the turntable. A bevel adjusting features selectively rotates the power driven saw blade relative to the turntable. The adjustable/bypassable bevel stop includes predetermined bevel stop settings at set angles, for example, such as 0.degree. and 45.degree., as well as an over-riding feature when angles either less than or greater than the predetermined bevel stop settings are desired. The over-riding feature does not require re-adjustment of the predetermined bevel stop settings.

Abstract: A base of a sawing machine is provided which includes a base portion, and a bench portion disposed on the base portion. A drive device may be disposed on an under side of the of the bench portion, with a saw disk extending through an aperture in the bench portion and drivingly coupled to the drive device. The base portion is made of plastic material and has a board disposed to a side wall thereof. A passage is defined between the side wall and the board for receiving a gauge device therein and the board is formed with a pocket to receive tools therein.

Abstract: A reinforced pneumatic tool holder includes: a handle having a sliding sleeve secured in a front portion of the handle, and a tool clamping device generally formed with an elastomer block for clamping a pneumatic tool such as a saw blade or a file on the tool clamping device reciprocatively held in the sliding sleeve of the handle for manipulating the pneumatic tool, with a reinforcing member integrally formed in an elastomer block for reinforcing the tool clamping device for firmly fixing the tool and a piston rod in the elastomer block for absorbing shock, preventing loosening and for sustaining a great working pressure of the tool, and also for preventing injury to a worker when operating the tool.

Abstract: A cam lock for the folding blade of a knife is disclosed herein wherein the heel of the knife is pivotally carried between opposite sides at one end of a handle. The handle includes an elongated slot defined between opposing surfaces of the handle for receiving the blade in its folded or storage position. A self-biasing cam lock assembly having components carried on the heel of the blade and the handle maintains the blade in its operative extended, unfolded position or in its folded storage position. The cam lock assembly includes an L-shaped cam member secured to the blade heel having an arcuate surface terminating at one end in a linear surface and a cut-out at its opposite end. Rectilinear slide members are carried on the handle having a spring bias yieldably urging the pin and slide member into engagement with either the cut-out or the linear surface respectively to maintain the blade in either of its two positions.

Abstract: An electrically heated knife blade is mounted on a carriage for moving the blade across a strip of elastomeric material. The carriage is propelled by a constant force provided by a pneumatic cylinder in communication with a source of constant air pressure so that the cutting speed is automatically increased at sections of strip material which are relatively thin and the cutting speed is automatically decreased at sections of strip material which are relatively thick. Sensors for determining the position of the relatively thick sections may be connected to the source of electricity for heating the knife blade to increase the voltage while cutting the relatively thick sections and thereby provide for a substantially constant cutting speed across the strip of elastomeric material. A tire tread is bent at the location the knife blade is moved across the tread to provide matching cut ends for splicing on a tire building drum.

Abstract: A drive sprocket arrangement includes a drive sprocket and a drive ring rolling loosely on the outer periphery of the sprocket. Drive links of the saw chain enter recesses in the sprocket via orifices in the drive ring. The drive ring has at an axial inner edge thereof a radially inwardly directed flange to retain the ring on the sprocket, and at an axial outer edge thereof a radially outwardly directed flange to retain the chain in place. The flanges are arranged such that the axial inner edge will be disposed above the axial outer edge when the drive shaft of the chain saw points downwardly.

Abstract: An apparatus for removing hardened substances such as putty or the like from a window sash without removing the window sash from its frame and without requiring a separate external guide comprises a rotary cutter member with a cutting blade and a sleeve member including a guide ledge extending forwardly from a portion of the front face of the sleeve member to engage a surface of the window sash to position the cutting blade relative to the putty holding surface of the sash in the direction perpendicular to the putty holding surface. The apparatus may further include an extension member and a stabilizing member to be used when a hardened substance is to be removed from a sash having associated with it a storm window or the like that would otherwise interfere with an electric drill or other power source and prevent the cutter blade from reaching the putty.

Abstract: The present invention relates to scissor action tools such as garden shears or the like which are provided with a pair of cooperatively engaging members united for scissor action about a joint. In particular, this invention relates to tools of the type provided with a shock absorber for absorbing the impact created upon complete closure of the tool. The shock absorber includes a shank secured to one of the members. The shank is configured to merge into a resilient head which is formed as an annular structure. The head comes into abutting relationship with the other member when the members assume a closed position.

Abstract: A tool for sawing plaster board being a hood spring loaded hingably attached to the motor of a circular saw such that the blade is completely enclosed in the hood when the saw is not in contact with the surface being cut. An adjustment screw is provided for adjusting the depth of cut. The hood is also equipped with a door with a spout attachable to a source of vacuum for withdrawing kerf.

Abstract: A portable saw guide apparatus comprises a frame assembly having four leg members and a pair of cantilever arms fixedly attached to the top of the frame assembly and extending generally horizontally above the leg members and further comprises rails spaced apart to slidably receive a carriage which supports a power saw and also comprises a crank connected to a lever which is connected to a pair of linkage members which is connected to a pair of spindles having four workpiece support mounts attached to two cylindrical workpiece support members which support the workpiece rest and/or the workpiece and raises and lowers the workpiece relative to the cantilever arms and rails and the power saw to effect cuts through many different thicknesses of structural materials.