Abstract: A band saw including a frame, at least two, spaced apart, rotatable wheels supported by the frame, a blade looped around the wheels, where rotation of at least one wheel causes the blade to move around the wheels, a detection system adapted to detect a dangerous condition between a person and the blade, and a reaction system configured to engage and stop the blade within 10 milliseconds after detection of the dangerous condition is disclosed. The reaction system may be configured to cut and grip the blade.

Abstract: A system and method for reducing physiological material on surfaces of meat cut transferred to surfaces of cut meat by an endless band saw blade is disclosed. The system includes a water jet manifold positioned adjacent the saw blade and having a first and second nozzle orifices formed therein, the first and second orifices operable to be placed in fluid communication with a source of water. The first nozzle orifice is operable to direct a first water jet substantially across and into a first side surface of the saw blade and a second nozzle orifice is operable to direct a second water jet substantially across and into a second side surface of the saw blade.

Abstract: Woodworking machines including cutting tools and motors adapted to drive the cutting tools are disclosed. The machines also include a detection system adapted to detect a dangerous condition between the cutting tool and a person, and a reaction system adapted to perform a specified action upon detection of the dangerous condition. The machines further include a control system adapted to test the operability of at least a portion of the detection system and/or the reaction system. The control system is adapted to disable the motor if the tested portion is inoperable.

Abstract: A food slicing machine using a linear servo motor to reciprocate a carriage holding food products through a path that includes a slicing blade. The slicing apparatus is a modular apparatus that can be mounted to and removed from slicing machines as a unit without the need for disassembly of the components of the slicing apparatus. An adjustment mechanism for the blade guide uses two shafts that extend from a bearing plate into a finger that is mounted to the blade guide. The lower shaft has a cam nut that displaces the finger about the upper shaft to bend the blade guide. There is also an adjustment mechanism for the idler pulley of the band blade apparatus.

Abstract: A machine is described having at least one dangerous portion. The machine also includes a safety system to detect dangerous proximity between a person and the dangerous portion and perform a predetermined action to limit or prevent injury to the person from the dangerous portion.

Abstract: A band saw machine includes a driving wheel and a driven wheel around which an endless band saw blade is wound. At least one of the driving wheel and the driven wheel is directly connected to an output shaft of a control motor. The output shaft of the control motor is arranged in a cylindrical bearing unit installed on a motor base supporting the control motor. The driving wheel is rotatably supported by the bearing unit.

Abstract: Installed in a band saw formed of a frequency converter, a motor, a driving wheel set and a band saw blade, a cutting speed display device is disclosed to include a modulator electrically connected to the frequency converter to output a linear modulation signal to the frequency converter for modulating the frequency of the output electrical power of the frequency converter so as to regulate the speed of the motor, and a display device that has a circuit device electrically connected to the modulator for receiving the linear modulation signal outputted by the modulator and converting the received linear modulation signal into a band saw blade cutting speed subject to one of a number of calculation modules set therein for enabling the band saw blade cutting speed to be displayed on the display panel. Thus, the cutting speed display device indicates the cutting speed of the band saw blade of the band saw in real time, and eliminates the problem of floating of the displayed data.

Abstract: A method of cutting a workpiece using an endless band saw blade and a band saw machine are provided. The method includes suspending the endless band saw blade between a driving wheel and a driven wheel such that the workpiece may be cut by the endless band saw blade, applying at least a first pulse and a second pulse to a first motor rotating the driving wheel and a second motor rotating the driven wheel, respectively, wherein the pulses have phases opposite to each other, and cutting the workpiece. The band saw machine includes a driving wheel having a first motor and a driven wheel having a second motor. The band saw machine further includes a pulse applying module that applies at least a first pulse and a second pulse to the first motor and the second motor, respectively, wherein the pulses have phases opposite to each.

Abstract: A band saw machine includes a driving wheel and a driven wheel around which an endless band saw blade is wound. At least one of the driving wheel and the driven wheel is directly connected to an output shaft of a control motor. The output shaft of the control motor is arranged in a cylindrical bearing unit installed on a motor base supporting the control motor. The driving wheel is rotatably supported by the bearing unit.

Abstract: A band saw quickly changing device for a band saw machine is pivotally connected to a turning wheel of the machine body, including a sliding base, two limiting bases, a spring, a support plate, a micro-adjusting rod, a quickly adjusting device and a bottom base. The quickly adjusting device is composed of a shifting block, an eccentric block and a handling rod. The eccentric block has an eccentric shaft hole for pivotally connected on the shifting block, and the handling rod has a pivotal member formed in its upper end to fit in the eccentric shaft hole and fixed therein with a bolt. When the handling rod is swung backward, the sliding base is moved down to let the upper turning wheel move down, loosening the band saw extending around the two turning wheels of the machine.

Abstract: A timbersaw attachment for a skidloader is beneficial in cutting timber. The skidloader attachment has a mounting plate adapted to attach to the skidloader, a cutting head attached to the mounting plate and one or more extensible members adapted to move the cutting head. Using the timbersaw attachment for a skidloader and method for cutting timber is disclosed by joining the attachment having a cutting head to the skidloader, connecting one or more extensible members and a motor on the attachment to the skidloader's hydraulics, moving the cutting head relative to the skidloader with the extensible members, and cutting timber with a chain rotated by the motor upon the cutting head.

Abstract: A ring saw includes a disc body having a circumferential edge with a first circumferential bearing groove. A cutting ring is mounted for rotation about the circumferential edge of the body. The cutting ring has an inner annular surface that carries both a circumferential gear profile and a second circumferential bearing groove. Ball bearings are positioned in side by side relation in a circumferential bearing race defined by the first circumferential bearing groove and the second circumferential bearing groove. A circumferential seal is provided between the body and the cutting ring, which is adapted to prevent abrasives from entering into the bearing race and interfering with ball bearings. At least one driving gear is carried by the body and engaged with the circumferential gear profile to impart rotational movement to the cutting ring.

Abstract: A transmission device for a band saw includes mainly a transmission, which, connected axially with a motor, consists of a driving gear set, a driven gear set, an output gear set and a gear rod. The gear rod is connected with a gearing jaw engaged with the output gear set inside the transmission and having a pushing device able to push the output gear set forward or backward to engage with the driven gear set to rotate in different speeds. And, combined with a driving mechanism, various speeds can therefore be selected for the sawing band to work, depending on the properties of the material to be sawed, upgrading sawing quality and efficiency.

Abstract: A workpiece-holding device for holding a workpiece on a worktable of a band saw machine having a vertically moveable saw blade guide and a saw blade running through the worktable and the vertically moveable saw blade guide is disclosed. The workpiece-holding device includes a suspension arm for horizontally and axially moveably mounting to the vertically moveable saw blade guide of the band saw machine, an offset member having an end horizontally and perpendicularly connected to the suspension arm, and a holding pin vertically and perpendicularly connected to the other end of the offset member for stopping at a workpiece on the worktable such that the workpiece is rotatable about the holding pin on the worktable for enabling the workpiece to be cut into an arched or circular shape by the saw blade.

Abstract: A hand-held band saw is provided for one-hand operation. The band saw has a frame and a handle extending from a longitudinal edge of the frame at an acute angle and opposite an edge containing a throat for receiving the work piece. The orientation of the handle centers the mass of the saw below the hand and positions the cutting section of the blade in a vertical plane so it will engage a work piece at a preferred angle selected by the user.

Abstract: A sawing machine includes a workbench, a band saw pivotally installed on the workbench, a weight movable between an idle position on the workbench and a working position on the band saw and an adjustable torque provider for providing an adjustable torque to the band saw. The adjustable torque is set to a maximum when the weight is in the idle position in order to lift the band saw from the workbench. The adjustable torque is set to a minimum when the weight is in the working position in order to lower the band saw toward the workbench.

Abstract: A machine is described having at least one dangerous portion. The machine also includes a safety system to detect dangerous proximity between a person and the dangerous portion and perform a predetermined action to limit or prevent injury to the person from the dangerous portion.

Abstract: Apparatus and methods for operational support and guidance of pivoting movement of portable band saws are disclosed. The apparatus includes a pivoting mount maintained at a work surface. A support is connected with the mount and includes a forward bracket adjacent to the mount for receiving a front portion of a blade housing structure of the portable band saw. An extension bar of the support supports a rear portion of the blade housing structure, a securing latch at the extension provided to releasably maintain the rear portion of the blade housing structure supported thereat.

Abstract: A cold separation device for separating an elongate metallic member along its length. The device has a separation unit having a driven blade, support member to support the elongate member upstream and downstream of the separation unit. The device further has to feed the elongate member towards and through the separation unit.

Abstract: An apparatus for use in cutting wood and reducing dust accumulation on the wood includes first and second bands. The first band cuts the wood and creates saw dust during cutting of the wood. The second band removes saw dust from a kerf formed in the wood by the first band during cutting of the wood. The first band may be driven at a speed which is at least twice as great as the speed at which the second band is driven.

Abstract: Band saws with high-speed safety systems are disclosed. The band saws include a detection system adapted to detect a dangerous condition between a blade and a person. A reaction system performs a specified action such as stopping the blade upon detection of the dangerous condition.

Abstract: A motor driven power tool is provided having an internal dust collection system. A single electric motor drives the working member such as a saw or sander and simultaneously drives an air pump which acts as a collector vacuum for debris created when the power tool is in use. A dust collector shroud surrounds a portion of the cutting member and forms an outlet connected to the air pump inlet.

Abstract: A vertical saw machine includes a column with upper and lower supports carrying a motor to drive a saw blade. A table is disposed between the upper and lower supports for supporting a workpiece. The saw blade intersects the table with an included angle. The column is turnable between normal and inclined positions to vary the included angle. A frame post is mounted under the table to be positioned on the ground surface. A key slot and a key member are disposed respectively in and on the frame post and the column, and confine an arcuate guiding route to retainingly guide the column to move between the two positions.

Abstract: A sawdust-removing device for a band saw machine with a power outlet device is fitted around the shaft of a motor of a band saw machine. The motor can also supply the sawdust-removing device with power at the same time to carry out clearing off sawdust. The sawdust-removing device includes a housing, a rotor and a plurality of blades. The housing has an air chamber for the rotor with the blades to be eccentrically positioned therein. The rotor is rotated by the shaft of the motor to suck in and exhaust out air for blowing off sawdust on planks being sawed. The device is easy to be integrally assembled, takes little space inside the band saw machine and is able to reduce cost in equipment and maintenance.

Abstract: The band saw self cooling roller guide is defined by a main cylindrical roller body having a front portion of reduced diameter forming a collar for mounting coaxially around a shaft, and a flange extending from the rear portion thereof forming a shoulder. The thin rear edge of the band saw blade or ribbon abuts the flange which aids in aligning the blade, and the flat surface of the blade rests upon a plurality of grooves formed around the peripheral surface of the main roller body. A plurality of apertures such as louvered holes are formed in the face of the body and extend through the flange to funnel air their the rotating roller body cooling the roller, aligning the blade, and extending the wear thereof.

Abstract: A string saw includes a housing, and an air box. The housing includes a first casing and a second casing combined with each other. The air box is mounted in the housing and has an inside formed with a receiving chamber communicating with the storage space of the first casing, so that the cut chips during the sawing process can be introduced from the storage space of the first casing into the receiving chamber of the air box. Thus, the string saw can provide the dust collection and chip drainage function.

Abstract: A woodworking machine includes an adjustable table for holding a workpiece thereon and a drive chain saw spaced from the table and having cutting teeth on one edge and drive engaging chain guides adjacent an opposite edge. The drive engaging chain guides engage a drive wheel driven by a motor. A support plate is positioned above the table and has a plurality of slots therein for adjustably mounting a plurality of roller guide elements positioned to engage both sides of the drive chain saw. Each of the roller guide elements includes at least one groove in an outer periphery thereof and the drive chain saw includes circular chain guides which mate with the groove. Threaded pins are provided for adjusting the position of each of the roller guide elements to engage the drive chain saw whereby a portion of the drive chain saw is formed into an undulating shape to cut curved surfaces in the workpiece when the drive chain saw and the workpiece come into contact.

Abstract: A bandsaw blade includes a strip and teeth projecting therefrom, which teeth are arranged in recurring main groups. Each main group comprises recurring geometrical subgroups and recurring setting subgroups. Each geometrical subgroup comprises teeth of at least two different heights, high and low respectively, and comprises an even number of teeth. Each setting subgroup comprises teeth of at least five types, normal left set, medium left set, unset, medium right set and normal right set respectively, and comprises six teeth.

Abstract: Foam sponge cutting apparatus with both vertical and horizontal cutting devices. A vertical cutting device and a horizontal cutting device are disposed on the blade strip frame of the apparatus body. The horizontal cutting device can be moved up and down, while keeping in a horizontal state. By means of the horizontal cutting device, the foam sponge can be easily stably cut along horizontal cutting lines on the working bench. The vertical cutting device can be moved left and right, while keeping in a vertical state. By means of the vertical cutting device, the foam sponge can be cut into products with various irregular or curved shapes in vertical direction. therefore, one single foam sponge cutting apparatus can achieve both horizontally and vertically cutting effect.

Abstract: A string saw includes a housing, and an air box. The housing includes a first casing and a second casing combined with each other. The air box is mounted in the housing and has an inside formed with a receiving chamber communicating with the storage space of the first casing, so that the cut chips during the sawing process can be introduced from the storage space of the first casing into the receiving chamber of the air box. Thus, the string saw can provide the dust collection and chip drainage function.

Abstract: A band saw replacing device includes a slide seat mounted on a top seat of a machine stand of a band sawing machine, an adjustment rod connected with the slide seat, a pivoting member, and a wrenching member. The pivoting member is pivotally connected to the top seat of the machine stand at an end thereof and is connected with the adjustment rod. The wrenching member is pivotally mounted on the top seat and has an arched engaging portion extending outwards therefrom for supporting the other end of the pivoting member. Accordingly, it's as easy as pushing the wrenching member to facilitate lowering the adjustment rod and to further shorten a distance between a driving wheel mounted on the slide seat and a driven wheel mounted on the machine stand, thereby replacing a band saw fitted on the driving wheel and the driven wheel rapidly and efficiently.

Abstract: A band saw with a complex coordination of a tilting motion and a translational motion between the workpiece and the band saw blade, so that a curved cut is made in the workpiece. The geometric parameters of the cut can be continuously adjusted. This makes it possible to optimize a contact length of the saw blade in the workpiece, which is an important factor in the cutting process. It is thus possible to saw workpieces made of stone and similar materials that are typically difficult to cut. The cut and the contact length of the saw blade can be tailored individually to each workpiece to be sawed. Thus, workpieces of different geometrical dimensions and different material properties, in particular with different material hardnesses, can be processed using the band saw according to the invention without having to undertake significant changes.

Abstract: A vertical band saw machine includes an endless band saw trained on a lower blade mounting pulley which is driven by an output shaft of a motor for sawing a workpiece placed on a worktable. A sawdust collecting member is mounted on a lower support below the worktable, and has first and second sawdust passageways with first and second intake ports disposed above and under the worktable in the vicinity of the blade. An impeller is rotatable coaxially with the lower blade mounting pulley so as to draw sawdust from the sawdust collecting member into a blower casing for discharge through a discharge port.

Abstract: A device and method for severing fasteners securing deck boards to pallet runners. A band saw extends across a table recess. The band saw is spaced above the tabletop aligning the saw between the deck boards and runners. The recess includes stop surfaces enabling the pallet to be pivoted from a horizontal position through a vertical position and then to an upside down position while the saw blade remains within the pallet for severing fasteners securing the opposite top deck board from the pallet.

Abstract: A band saw includes a protective device having at least one shock absorbing/reflecting member for reducing stress concentrations. The at least one shock absorbing member has a configuration adapted to follow an outer contour of at least a portion of the band saw. A mechanism secures the at least one shock absorbing member to the band saw.

Abstract: A sawdust-removing device for a band saw machine with a power outlet device is fitted around the shaft of a motor of a band saw machine. The motor can also supply the sawdust removing device with power at the same time to carry out clearing off sawdust. The sawdust-removing device includes a housing, a rotor and a plurality of blades. The housing has an air chamber for the rotor with the glades to be eccentrically positioned therein. The rotor is rotated by the shaft of the motor to suck in and exhaust out air for blowing off sawdust on planks being sawed. The device is easy to be integrally assembled, needless to take much space inside the band saw machine and able to reduce cost in equipment and maintenance.

Abstract: A housing of a band sawing machine is composed of a bottom shell and at least one cover shell. The bottom shell and the cover shell are respectively made of a metal sheet by stamping. The bottom shell has a peripheral wall perpendicularly extending from a border thereof. The cover shell has a lateral side hinged to a lateral side of the peripheral wall of the bottom shell such that the cover shell can be turned to close/open the housing. According to an alternate design of the present invention, the housing is composed of a bottom shell and two cover shells respectively hinged to the lateral side of the peripheral wall of the bottom shell at different elevations.

Abstract: A folding, straight-line, workpiece guide for a saw having a base, a saw blade extending vertically through the base, and a feed path relative to the saw blade. The workpiece guide comprises an elongated table which can be collapsed into a folded configuration or set up and locked into a working configuration. A carriage is constructed and arranged to support multiple elongated workpieces and to slide along the foldable table. The foldable table has multiple chassis sections pivotally connected to one another, adjustable legs, connectors for connecting the table to the base of the saw parallel to the feed path of the saw, and a guide track for guiding the carriage along the table when the table is in the working configuration.

Abstract: A bandsaw blade for sawing of metal where each tooth has a narrow flat land (12) without clearance angle and a sharp cutting edge (14) in front, manufactured by moving the blade longitudinally with the tips of the teeth in contact with one or more slowly rotating hones (11) before possible setting and before joining to loops, thus providing less risk of tooth damage, less cutting force and greatly reduced noise. The invention also relates to a method for manufacturing a bandsaw blade with teeth.

Abstract: A band saw includes a continuous saw body and multiple saw teeth provided on an edge portion of said saw body entirely. The edge portion of the saw body and the saw teeth are angled toward an inner side of the saw body by creating a bend near a tooth base line of the saw body. A band saw processing method and a method of manufacturing the band saw are also disclosed.

Abstract: A quick-pin blade tensioning device for a band saw comprises a sliding tension bracket coupled with an upper arm of the band saw. The sliding tension bracket engages an upper band wheel which has a band saw blade coupled to it. A lifting shoe, slidably disposed within the upper arm, imparts movement to the sliding tension bracket. A pin moves the lifting shoe through rotational movement of the pin imparted by a coupling with a tension crank. The tension crank, disposed within the upper arm, has rotational movement imparted to it through a coupling with a tension handle enabled with multiple positions.

Abstract: A saw blade with teeth has a tooth point with a tooth edge (E1, E2). A tooth face is on the front side of the tooth and a tooth back is behind the tooth edge. A tooth gullet (G1, G2) is defined as the space between the tooth edges of two adjacent teeth. The tooth edge (E1, E2) extends between a right hand tooth corner (A1, A2) and a left-hand tooth corner (B1, B2). A first tooth gullet, disposed between the tooth edge (E1) of a first tooth (T1) and the tooth edge (E2) of the next tooth (T2) is beveled. A sloping surface (S1) extends from the first tooth edge (E1) in the rear end of the first tooth gullet downwardly along the tooth face and to at least the tooth bottom.

Abstract: A dust collector includes a mounting seat mounted outside dust outlets of a housing of a band sawing machine, a boosting unit received in the mounting seat, and a dust collecting member. The mounting seat has an axial portion and a through hole passing through the axial portion. The boosting unit includes a rotor and a fan blade. The rotor has a body portion rotatably mounted through the through hole of the mounting seat and fitted to the fan blade at a distal end thereof, and a head portion connected with a transmission shaft of a drive motor of the band sawing machine. The dust collecting member is connected with the mounting seat and includes a receiving space. Accordingly, the dust collector is synchronically activated together with the band sawing machine to run for collecting sawdust.

Abstract: A belt saw machine includes a machine base, a support frame unit, a worktable, a cutter unit, a workpiece positioning unit, and a cutter shield device. The support frame unit includes a fixed cover and a rotatable cover connected pivotally to the fixed cover. The cutter unit includes a drive roller unit and a belt cutter. The workpiece positioning unit is mounted on the fixed cover. The cutter shield device includes a shield shaft fixed on the workpiece positioning unit, and a shield assembly mounted on the shield shaft and pivotable thereabout. The shield assembly includes an angled shield plate that is rotatable to a shielding position for covering the belt cutter when the rotatable cover is disposed at a covering position, and to a non-shielding position when the rotatable cover is disposed at an open position, thereby permitting replacement of the belt cutter.

Abstract: A vertical band saw machine includes an endless band saw trained on a lower blade mounting pulley which is driven by an output shaft of a motor for sawing a workpiece placed on a worktable. A sawdust collecting member is mounted on a lower support below the worktable, and has first and second sawdust passageways with first and second intake ports disposed above and under the worktable in the vicinity of the blade. An impeller is rotatable coaxially with the lower blade mounting pulley so as to draw sawdust from the sawdust collecting member into a blower casing for discharge through a discharge port.

Abstract: A worktable for a bandsaw. The worktable includes a support frame having a top frame portion and a bottom frame portion for resting on a support surface with the bottom portion of the bandsaw body fixedly attached to the bottom frame portion; a tabletop having a slot therein with the bandsaw blade extending therethrough; a plurality of support wheels mounted on the top frame portion of the support frame and rollably supporting the tabletop for allowing the tabletop to roll between a first position and a second position; and guide structure for guiding the tabletop as the tabletop is rolled between the first and second positions.

Abstract: A belt saw machine includes a machine base, a support frame unit, a worktable, a cutter unit, a workpiece positioning unit, and a cutter shield device. The support frame unit includes a fixed cover and a rotatable cover connected pivotally to the fixed cover. The cutter unit includes a drive roller unit and a belt cutter. The workpiece positioning unit is mounted on the fixed cover. The cutter shield device includes a shield shaft fixed on the workpiece positioning unit, and a shield assembly mounted on the shield shaft and pivotable thereabout. The shield assembly includes an angled shield plate that is rotatable to a shielding position for covering the belt cutter when the rotatable cover is disposed at a covering position, and to a non-shielding position when the rotatable cover is disposed at an open position, thereby permitting replacement of the belt cutter.

Abstract: For a woodworking machine having a horizontally disposed working table and a bandsaw blade transverse to the table, there is provided an elongated fence having a substantially rectangular cross-section mounted perpendicular to the table and spaced from the saw blade and parallel to the line of the saw blade. The fence has a clamp including (a) a downwardly disposed projection at about one end of the fence adaptable for engaging an edge of the table, and (b) a pivotal member downwardly disposed from the fence at about the opposite end thereof and adaptable for engaging an opposite edge of the table. The projection is adjustable linearly relative to the fence to bring the projection and the pivotal member into fast engagement with opposed edges of the table. The pivotal member includes locking screw for locking the fence in a selectively pivotal position.

Abstract: The present invention is a band saw for finish cutting of meats. The band saw is portable and disassembles into small parts. The band saw is small enough to fit on top of a table, permits easy transportation, and is easy to assembly and disassemble without tools. The band saw can be hosed down in a kitchen sink or taken apart to be washed in a kitchen sink, once any electrical components have been removed.

Abstract: A machine for cutting plate-shaped workpieces, incorporates a tool guide (7), an operating handle (13), and a cutting tool (6) which revolves along the tool guide (7). By moving the operating handle (13), the tool guide (7) with its cutting tool (6) can be shifted from an idle position into an active position. In its idle position the cutting tool (6) is disengaged from, and, in its active position it is engaged in, the workpiece to be processed. Provided between the operating handle (13) and the tool guide (7) is a gearing mechanism (14, 18) with a transmission ratio which varies with the movement of the operating handle (13) as a function of the position of the tool guide (7) and its cutting tool (6) relative to the workpiece.