Abstract: A rotational saw bow device without a rotary axis includes a saw bow seat, a fixed portion and a rotating device. The fixed portion is connected to the saw bow seat. The rotating device is disposed between the saw bow seat and the fixed portion, and the rotating device includes a driving component, an angle adjustment portion, a trajectory portion and a rotating mechanism. The driving component drives a gear wheel portion to rotate on the angle adjustment portion, so that the rotating mechanism moves along the trajectory portion to rotate the saw bow seat. In addition, a sawing machine includes the rotational saw bow device.

Abstract: A method of production of edge protection strips (10) of ceramic material, includes the steps of: arranging a sheet-like article (20) of ceramic material elongated along a longitudinal axis (A) and provided with an exposed surface (S); incising the exposed surface (S) along two distinct incision planes, parallel to each other, orthogonal to the exposed surface (S) and each intersecting the exposed surface (S) along an incision line (I) parallel to the longitudinal axis (A); cutting the article (20) along two cutting planes each intersecting an incision plane along a cutting line (C) parallel to the incision lines (I) and mutually incident in an intersection line (X) included in the thickness of the article (20); and separating a substantially prismatic edge protection strip (10) from the article (20) with a first portion (S1) of exposed surface (S) internal to the incision lines (I).

Abstract: A tile saw includes a base, a frame assembly disposed on the base, a first rail disposed on the frame assembly, the first rail having a longitudinal axis, a table slidingly disposed on the first rail, a support assembly disposed on the base, a saw assembly supported by the support assembly, the saw assembly comprising a motor, a cutting wheel driven by the motor, the saw assembly being pivotable about a horizontal axis substantially parallel to the longitudinal axis, and a switch electrically connected to the motor and disposed on the support assembly so that, when the motor assembly is pivoted about the horizontal axis, the switch remains stationary.

Abstract: An eyeglass lens processing apparatus includes: a setting unit which sets points on an edge of a lens, where a line on a target lens shape and passing through the first and second points intersects a line on the target lens shape and passing through the third and fourth points; and a calculating unit which: obtains a first plane including a bisection point between the first and second points and perpendicular to the first line; obtains a second plane including a bisection point between the third and fourth points and perpendicular to the second line; obtains an intersection line of the first and second planes; obtains a bevel spherical surface so that a center of the bevel spherical surface is located on the intersection line and passes through a desired edge position; and obtains the bevel path on the basis of the bevel spherical surface and target lens shape data.

Abstract: A method of making a power transmission belt/belt sleeve by bias cutting sides thereof using a cutter. A belt/belt sleeve preform is trained around at least two spaced shafts and driven as the sides are reconfigured by the cutter. The cutter may reside within a cutting space bounded by an inner circumference of the traveling belt/belt sleeve preform. The belt/belt sleeve preform has a starting shape wherein spaced sides thereof are parallel to each other. Parts of the sides may be maintained parallel after the bias cutting is performed. A power transmission belt with bias cut side surfaces is also contemplated.

Abstract: A horizontal band saw includes a base assembly, a sawing mechanism and a bevel cutting adjustment device. The base assembly includes a frame and a conveyer. The frame has a transverse passage. The conveyer is mounted in the transverse passage of the frame. The sawing mechanism is pivotally mounted on the frame and includes a housing. The housing is pivotally mounted on the frame and has a bottom and a cutting window above the conveyer. The bevel cutting adjustment device is mounted on the frame, connects to the bottom of the housing and is used to pivot the sawing mechanism relative to the conveyer so that the horizontal band saw can make a bevel cut in a workpiece.

Abstract: A knife blade for cutting food products includes a cutting edge having a concave circular curved central portion and opposed linear end portions tangentially intersecting and extending away from opposite sides of the circular curved central portion. The shape of the cutting edge results in enhanced stability of the knife blade when slicing food products driven into the cutting edge and across the blade width.

Abstract: A cutting system which reduces the risk of damage to a printed wiring board during bevel formation by using a modified cutter having reduced length cutting edges joined to guide surfaces wherein the cutting edges have an actual angle of intersection which is less than the apparent angle of intersection of the guide surfaces.

Abstract: A cutting device, including a receptacle for containing butter; a push mechanism for pushing the butter or margarine down into the receptacle, the push mechanism sitting atop a stick of butter and inside the receptacle, the push mechanism being in mechanical communication with the receptacle such that movement of the receptacle causes the push mechanism to move butter downward in relation to the receptacle, the push mechanism including a retrieval chain; a cutter, the cutter including a mechanism for knocking-off a piece of cut butter, the knocking off mechanism being a tapered piece; a gear mechanism in mechanical communication with the receptacle such that movement of the receptacle causes movement of the gear mechanism, the gear mechanism including at least one upper flat gear joined to the receptacle, a round gear joined to the frame and at least one lower flat gear joined to the cutter, wherein movement of the receptacle causes the upper flat gear to rotate the round gear, which in turn moves the lower f

Abstract: An apparatus for scarfing edge portions of a veneer sheet to produce a joint suited for joining the veneer sheets in an edge to edge relation. A conveyor system aligns, conveys and flattens the sheet. The sheet as it is being conveyed is engaged by tapered anvils provided on each side of the apparatus that deflect edge portions of the sheet at an angle to the plane of the flattened sheet. A diverter directs the edge of the sheet to one side or the other of the anvils. The resiliency of the sheet maintains the deflected edge portion against the anvil. The edge of the sheet when diverted to one side of the anvils is conveyed through scarfing saws that generate a bevel on each of the deflected side edges. The edge of the sheet when diverted to the opposite side of the anvils by-passes the scarfing saws.

Abstract: An apparatus for scarfing edge portions of a veneer sheet to produce a joint suited for joining the veneer sheets in an edge to edge relation. A conveyor system aligns, conveys and flattens the sheet. The sheet as it is being conveyed is engaged by tapered anvils that deflect edge portions of the sheet at an angle to the plane of the flattened sheet. One anvil on one side deflects one edge portion upward and the anvil on the opposite side deflects the opposite edge portion downward. The resiliency of the sheet maintains the deflect edge portion against the anvil. The sheet is conveyed through scarfing saws which generate a bevel on each of the deflected side edges.

Abstract: A saw system includes a support table (12) and a first elongate tower assembly (50) pivotally mounted relative to the table (12). A second elongate tower assembly (60) is also mounted for rotation relative to the table (12) and is spaced from the first tower assembly (50). The second tower assembly (60) is moveable towards and away from the tower (50) by roller wheels (42 and 43) which engage on guide rails (34 and 36) to enable the second tower assembly (60) to be moved. The second tower assembly (60) and the first tower assembly (50) are rotatable to set the tower assemblies at a predetermined angle with respect to the table (12) and carry saws for making a cut in the workpiece. Ram assemblies (130 and 160) on each tower enable movement of the workpiece downwardly relatively to the saws so that the workpiece is driven past the saws and cut by the saws.

Abstract: A new Wedge Cutting Jig Device for offering a tool that enables one to cut wood wedges and shims and the like with a variety of thicknesses. The inventive device includes a base, a handle, a wood pocket, a wood push wall, and a thickness adjustment means. In use, an ordinarily and otherwise scrap lumber end is placed on a table saw and the Wedge Cutting Jig Device 10 is taken by the hand of the operator. The operator turns the table saw on, and with the Wedge Cutting Jig Device 10 sliding down a slot of the table saw with the slide rail 22 of the Wedge Cutting Jig Device 10 being slidably received within the slot of the table saw, the scrap lumber end is safely forced past the turning blade of the table saw and results in a wood wedge being cut out.

Abstract: The present invention consists of a main frame that mounts atop a table saw. An axis shaft on a rocker assembly holds a wooden workpiece which is rotated and lowered into the circular cutting blade. Either a radius or square shoulder tenon can be cut depending on the orientation of the axis shaft.

Abstract: A cutting device for cutting sheet material having an elongated work table disposed on a base support. The work table if for supporting the sheet material to be cut and includes a first and second portion, and a center portion, with the center portion rigidly secured to the base support and positioned between the first and second portions. A first saw is operably associated with the center portion and the base support. The first and second end portions are movable relative to the center portion, such that the sheet material disposed on the work table is movable relative to the first saw thereby permitting the cutting of the sheet material. A guide for positioning the sheet material relative to the work table is positioned along the first and second end portions. A clamp is mounted to the first end portion of the work table for holding down the sheet material on the work table during cutting, the clamp has an engaged and a disengaged position relative to the sheet material.

Abstract: A table saw has a circular saw table, a miter table and a supplementary table to form a working table, on the front and rear sides of which two guide rails are disposed slidably with respect to the working table. The miter table has a miter fence thereon whose pivot points are provided at two separate positions.

Abstract: An improved miter table (20) for a circular saw table (10) having a rotating blade (12) includes an elongated guide plate (22) having a track (28) mountable to the saw table (10) and the miter table (20) includes an adjustable follower (30) for slidably engaging the track for longitudinal movement along the track (28) that provides transversely adjustable positioning of the miter table (20) with respect to the track (28) thereby to provide precise alignment of the workpiece with respect to the rotatable blade (12) during such movement.

Abstract: An accessory for use with a table saw having a generally horizontal surface defining at least one rectalinear groove and a circular saw blade projecting through the horizontal surface and parallel to the groove; the accessory including a plate having lower and upper surfaces with the lower surface adapted for sliding movement on the horizontal surface; a first rectalinear rail supported by the plate and projecting in an active position below the lower surface and adapted to ride in the groove and guide movement of the plate parallel to the groove and for movement into an inactive position above the lower surface; a second rectalinear rail supported by the plate and adapted for movement between an active position below the lower surface and an inactive position above the lower surface, the second rail in its active position adapted to ride in the groove and guide movement of the plate parallel to the groove and being perpendicular to the second guide surface and oriented at an angle of 45.degree.

Abstract: A device for slitting an elastomeric strip into two identical halves of cross-section suitable for use as windshield wiper blades includes a drive roller which grips the strip and draws it through stationary dies past the operative cutting area of a pair of rotary cutters having cutting tip configurations and placement effecting cutting of the strip to provide sharp, consistent corners at the resulting blade tips.

Abstract: The present invention provides a work fed truss cutter in which the work piece is a length of timber and is fed through the machine in a direction at right angles to its length. A first pair of saws at the left hand side of the work piece cut the left hand end of the work piece while a second and right hand pair of saws cut the other end of the work piece to provide bevel cuts thereon. To simplify the machine construction, of each pair of saws each saw is mounted for the pivotal movement about an axis which is physically spaced from the saw disc and at least one saw of each pair is movable linearly towards and away from the work piece which cuts in distinction to the prior art wherein of each pair of saws, the saws are pivotable about a common axis which lies as accord in relation to each saw disc, which leads to a mechanically complicated mounting arrangement for the saws.

Abstract: An accessory for a table saw comprises a plate having rollers thereon received in the parallel grooves of a conventional table saw. The rollers rotate about a vertical axis and act to guide the plate toward and away from the circular saw. A work piece is placed on the plate at a desired angle by an adjustable fence so that consistent, repetitive cuts in the work piece may be achieved.

Abstract: A truss component saw apparatus having multiple saws arranged in two sets for providing a variety of angular cut-offs for lumber lengths. The saws in each set are arranged for adjustment movements involving from 1 to 4 degrees of freedom of movement. An automatic control mechanism is provided for automated adjustment of the saws to predetermined positions. The degrees of freedom are linear, pivotal, and movement within an X-Y coordinate plane arranged substantially perpendicular with respect to the pivot axis established by the saws within a given set of saws. A lumber conveyor system is provided for the apparatus.

Abstract: A method for chamfering an edge of a silicon steel plate moving in the longitudinal direction of the edge by applying an entirely circular edge tip of a ring-shaped cutting edge portion of a circular cutter to the edge of the plate material while rotating the circular cutter. The edge tip of the cutting edge portion of the cutter has a rake angle which is within the range of 0 to -1.0 degrees and a relief angle which has a zero or positive value.

Abstract: A method and an apparatus are provided for cutting open-flanked V-belts, for example, for use as fan belts in automobiles. Individual V-belts are cut from a vulcanized roll formed from a plurality of layers of rubber and reinforcements. The roll is rotatably disposed on support devices, the support devices being so arranged that at least a portion of the rotation of the roll occurs in straight lines. The belts are cut in the straight line regions. Extremely uniform flank cuts are achieved thereby. The straight line is defined between two rollers, over which the vulcanized roll is forced and becomes tensioned. Cutting devices are moved into and out of the straight line portion of the rotational path of the roll in order to produce the flank cuts.

Abstract: Rotary saw blades mounted on primary supports of a truss component cutting machine require angular adjustment to produce various required angle cuts of the truss components without changing the necessary lengths of the components. To achieve this result, the outer face of each rotary saw blade must pivot around a fixed reference axis lying on the outer face of the blade. The system provides a number of diverse precision adjustments of parts on which the saw blades are supported to assure that the blades in all angularly adjusted positions will have their outer faces remaining on the fixed reference pivot axis.

Abstract: The invention relates to a machine for end notching logs and to a method for end notching logs so that they can be incorporated into an interlocking corner configuration in a log cabin building. The corner construction is of the 1/2 dovetail configuration and the machine is designed to make one notch, rotate the log and then make a second notch whereby the resulting machine made configuration can be incorporated into a joint that is secure and properly drained.

Abstract: The present invention relates to a mitre guide jig adapted for use with a masonary saw. The jig comprises a body portion and an end portion to which the body portion is adjustably secured. The body portion includes a single flat work piece receiving face which is bordered by at least one raised side rail and which moves through a variety of tile cutting positions with adjustment of the body portion.

Abstract: A base frame mounts a first gang of saws in a common vertical datum plane and a first wood member conveyor device. A second gang of saws in a common vertical datum plane and a second wood member conveyor device are mounted on a carriage on the base frame for movement toward and away from the first gang of saws and first conveyor device. Each saw in each gang is independently vertically adjustable in its vertical datum plane and each saw is rotatable a full 180 degrees around the axis of a chord on the saw blade lying in the common datum plane of such saw. Each saw, during its angular rotation, is precisely supported on a double pantograph movement linkage which follows an arcuate track centered on said chord and vertical datum plane. A precision drive for the wood member conveyor devices and carriage obviates the necessity for a long torque shaft and enables much greater versatility of operation of the apparatus.

Abstract: A device for automatically and simultaneously making two parallel straight cuts of predetermined length in a mat comprising a transporting means, a pair of cutting means, a single driving means for said cutting means and a pair of signalling means for activating said driving means.

Abstract: A multiple saw assembly, for cutting small lumber components from longer lumber, having a pair of opposed saws, for forming component end angles, each mounted on a double pivot mounting to provide optimum saw engagement with lumber at various angles of cut. Lumber feed and hold down means provide uniform components for various widths of the components and various lengths of feed stock.