Abstract: An inventive tube cutting apparatus includes spaced plates which allow modular mounting of the main components of the tube cutting apparatus. The various components can be replaced and matched with other components by either changing the position that the components are mounted on the plates, or replacing the plates. An accelerator utilizes an eccentric connection to a rotary motor to provide a relatively simple drive for the die set. In an alternative accelerator, a steel belt is reversibly rotated and is fixed to drive the die set. In a powerhead assembly for actuating the die set, a pair of spaced shafts are connected through two offset links to synchronize the shafts, and maintain parallelism of the ram as it is forced downwardly into the die set.

Abstract: A dual blade band saw cutting machine which allows two individuals to work on two different objects at two separate work stations within the same machine. Through the utilization of a single variable speed motor and two overlapping triangular rotational patterns, two safe and independent work stations with large working areas, each having its own cutting band, are provided. Additional features of the cutting machine include assemblies for adjusting the tension of the cutting bands, an assembly for varying the speed of the motor, and a display for informing the individuals operating the cutting machine of the rotational speed of the cutting bands in blade feet per minute.

Abstract: A scroll saw having an unlimited throat depth includes upper and lower spaced apart blade arms independently supported and interconnected only by a blade at their forward ends. A spring biases a forward end of the upper blade arm upwardly keeping the blade taut throughout its reciprocation by a motor connected through an eccentric to the lower blade arm. The lower saw unit may be movably positioned on a platform or cart while the upper saw unit is slidably supported on a wall mounted support arm.

Abstract: Disclosed is a punch pressing machine requiring no turret, having punch units and die units as die sets, the number of which is not inferior to a turret punch pressing machine, and exhibiting a working accuracy superior to the turret punch pressing machine. A plurality of punch units and die units are disposed in two or more lines on a mounting plate member. A hammer member confronting the respective punch and die units is positioned in X-and-Y axis directions, whereby a workpiece can undergo necessary punch press working.

Abstract: A wood working assembly for use in preparing and finishing wooden surfaces for shaping and joining wooden members with portable hand tools including a frame sub-assembly, tool support means, including means for supporting and directing a portable hand tool thereupon, and a work board sub-assembly operatively associated with the frame sub-assembly to support a work piece relative thereto and selectively position said work piece relative to the hand tool to shape, form and/or join the work piece therewith.

Abstract: An extension assembly increases the safety of bench or table-type machines without significantly reducing the mobility of the machines. The extension assembly includes an extension table, rigidly connected to a support surface of the machine, and a longitudinally adjustable support element connecting the extension table to the body of the machine. A self-adjust mechanism is provided which facilitates adjustment of the extension table of the extension assembly upon adjustment of the support surface. The self-adjust mechanism preferably includes a spring biasing inner and outer telescoping tubes of the extension assembly. Leveling assemblies may be mounted on the machine to increase its stability.

Abstract: A safe lift device for a slicing machine as provided which enables at least a portion of the slicing machine to be raised from the table or counter upon which it rests. Intermediate the two legs to be raised, a retention leg is pivotally attached to the slicing machine. Also connected to the slicing machine and the retention leg is a lever arm assembly. As the lever arm is raised, the retention leg descends toward the table or counter. Continued raising of the lever arm causes the retention leg to exert a downward force on the table, and thus an upward force on the slicing machine. A ratchet and pawl mechanism connected to the retention leg and the lever arm assembly allows the user to lock the lever arm while the slicing machine is in a raised position thus preventing the slicing machine from falling. A safety switch disenables the motor driving the slicing knife as soon as the machine is lifted approximately one inch or more.

Abstract: A mechanism for positioning a cutting and punching machine relative to a fixed conveyor for feeding material to be processed in a fixed horizontal route into the machine. The positioning mechanism comprises a carriage which supports the machine for back and forth movement laterally of the horizontal feeding route, which carriage is supported in turn on a support providing tracks for lateral movement of the carriage, with the support mounted within a lined pit. A drive unit is mounted on the machine for effecting lateral movement of the carriage, and a second drive unit is mounted within the lined pit below the support for moving the support vertically within the pit.

Abstract: A linear punch press for punching sheet material is formed by an X axis central support frame having a coextensive laterally spaced parallel support table on either side. Medically located relative to its ends the central frame supports a punch station including fixed position punch and die adaptors which respectively support a cooperating punch and die. A workpiece supporting and positioning frame is longitudinally slidably supported by the central frame and in turn supports a punch head movable longitudinally of the central frame within the workpiece frame. A Y axis conveyor drive extends there between and is slidably supported at one end by the respective support table and is connected at its other end with the workpiece support frame for moving a workpiece transversely through the central support frame.

Abstract: A metal working machine (10) is disclosed according to the preferred form including a punching station (48) associated with a first crank arm (18) pivotably mounted to the frame (12) by a first pivot pin (20) and including multiple shearing stations (50a-e) associated with a second crank arm (26) pivotably mounted to the frame (12) by a second pivot pin (28). A link (36) has its opposite ends pivotably mounted by pivot pins (38, 40) to the first and second crank arms (18, 26), respectively. An expandable and contractable actuator (42) having its opposite ends pivotably mounted by pivot pins (44, 46) to the first and second crank arms (18, 26) simultaneously pivots the crank arms (18, 26) about the first and second pivot pins (20, 28) in opposite directions. The pivot pins (20, 28, 38, 40, 44, 46) are spaced from and parallel to each other.

Abstract: A portable universal saw table used to rip long narrow pieces such as trim molding, siding and plywood which supports a long piece while sawing without binding the power saw including two parallel rails held by cross braces between which are removable cross pieces for supporting the work piece. The cross pieces are cut during sawing and are replaced when sufficiently chopped up. The table also permits transverse cutting. A back guide is provided. An electric saw platform is also provided.

Abstract: The rolled-paper feed unit for an image forming apparatus of the present invention comprises; a movable body for reeling out and feeding rolled paper and for cutting the rolled paper into a cut sheet having a predetermined length; and a stationary frame which holds the movable body vertically moved from an upper position where the rolled paper is fed to a lowered retreat position where the operator is adapted to carry out certain operations. When feeding the rolled paper to the image forming apparatus main body, the movable body is held at the upper position. When resupplying cut paper to a cassette mounted on the image forming apparatus, or executing a jam processing or the like, the movable body is lowered.

Abstract: A machine for cutting cloth or similar sheet material for a take-off table permanently connected to it for supporting sheet material after its having been cut by the cutting machine. The table is movable relative to the machine between a deployed and a stowed position, and in the stowed position of the table the combined apparatus has an overall length much shorter than it has with its table deployed, thereby allowing the apparatus to be more easily moved from one spot to another or the cutting room floor.

Abstract: A system is disclosed for neutralizing the punching reaction forces in an open frame punch press in which inclined primary links mounted on the upper and lower frame members are stressed by linkage actuators during punching so as to counteract the punching reaction force. In one embodiment, a charging cylinder mounted to be acted on by the punch ram actuator generates hydraulic pressure used to operate linkage actuators. In that embodiment, the primary links are combined with secondary links to form toggle linkages to enable mechanical force multiplication of the force applied by the linkage actuators. In another embodiment the primary links converge and are pivotally connected at their rear ends to each other and a single secondary link, with a single cylinder at the forward end of one of the primary links, placing the primary links in tension during punching operations to neutralize the punching reaction forces acting on the press frame.

Abstract: A multi-part frame structure forming a mill housing for a rolling mill assembly is disclosed. The housing includes six separate and distinct components, namely a bottom separator member, a top separator member spaced above and disposed in registry with the bottom member and four elongated, upstanding columns of rectangular cross-section adjoining the top and bottom separator members to form a substantially rectangular opening for the passage of a steel strip therethrough during cold rolling operations. The top and bottom separator members are each of T-shaped cross-section defining a pair of tee arms which extend transversely across the frame and project forwardly and rearwardly from a tee leg. The tee arms of the top separator member are inserted in close spaced relation in traversely extending notches formed in upper end portions of the four columns.

Abstract: The press has a pneumatically operated piston and cylinder mounted beneath a work plate, and linked to an upper press plate by rods extending through the work plate to provide compression in a die-set area defined between the upper press plate and the work plate. The pneumatically operated piston and cylinder are encased within an enclosed base which is insulated. The movable cylinder acts against springs also mounted within the base which cause the press plate to rebound after a pneumatically operated downstroke.

Abstract: An apparatus including a central planar table plate, with a first and second wing plate member pivotally mounted at each end of the saw table plate, wherein each wing plate includes an outwardly extending plurality of tubes directed therefrom, wherein each of the tubes telescoping receives a leg of a "U" shaped member therewithin secured to the tubes by collets mounted at free ends of the tubes spaced from each of the wings. The tubes include a cross brace spaced rearwardly of the collet, with a sleeve pivotally mounted about each of the cross braces. The sleeve includes a leg telescopingly received within an underlying tube member. The underlying tube member of each leg is pivotally mounted to a framework, wherein the framework is arranged parallel and underlying the plate member mounted to legs extending downwardly from the plate member.

Abstract: A system for automatically positioning a plurality of tool-holding carriages along an elongate guide member utilizes a single drive member to move all of the carriages simultaneously. The carriages each have clutches for selectively engaging or disengaging the drive member so that the carriages can be moved relative to each other by the drive member, and can be moved simultaneously in opposite directions along the guide member if desired. The drive member is capable of moving each carriage throughout its respective maximum range of movement with a continuous motion, without any reversal of the drive member or any disengagement of the respective carriage from the drive member. Each carriage has an electrically-powered position sensor capable of transmitting different discrete signals for different positions of the carriage so that it provides absolute indications of position rather than indications which are relative to some reference position.

Abstract: A system for automatically positioning a plurality of tool-holding carriages along an elongate guide member utilizes a single drive member to move all of the carriages simultaneously. The carriages each have clutches for selectively engaging or disengaging the drive member so that the carriages can be moved relative to each other by the drive member, and can be moved simultaneously in opposite directions along the guide member if desired. The drive member is capable of moving each carriage throughout its respective maximum range of movement with a continuous motion, without any reversal of the drive member or any disengagement of the respective carriage from the drive member. Each carriage has an electrically-powered position sensor capable of transmitting different discrete signals for different positions of the carriage so that it provides absolute indications of position rather than indications which are relative to some reference position.

Abstract: In a punching unit for punching apparatus comprising a support section of a generally C-shape with a material inserting groove formed in the middle, a punch vertically movably and removably mounted in a mounting bore in the side end of the upper half of the support section, a die removably mounted in the side end of the lower half of the support section and having a die opening formed conforming to the outer periphery of a working surface of the punch, and a lifting mechanism removably connected to the die, the working surface of the punch is formed in a shape of a concave slot, and a slug discharge bore is provided communicating with the die opening of the die and with the lower half part of the support section.

Abstract: A portable workbench for supporting a power tool above a support surface.

Abstract: A machine tool, in particular a machine for working with punches and dies parts formed from sheet material, comprises an essentially C-shaped frame made up of two parallel-connected, essentially C-shaped frame parts. The first frame part is designed to absorb the reaction forces from forces exerted by tools placed between the arms of the C-shaped parts. The second frame part is designed to hold the tools in a desired position relative to each other. The two C-shaped frame parts near the ends of the arms thereof are connected to each other only by means of a hinge joint between the bottom arm of the first C-shaped frame part and the neighboring bottom arm of the second C-shaped frame part, and a connecting element which at one side is hingedly connected to the top arm of the first C-shaped frame part by means of a hinge joint and at the other side is connected to the top arm of the second C-shaped frame part.

Abstract: A punching apparatus, preferably for punching intermittently moving webs of synthetic thermoplastics, comprises top and bottom tools, which are mounted in a machine frame and at least one of which is connected to a drive for moving said one tool up and down. The tools for making the punching cut consist of a knife plate or a knife ring and a backing plate or a backing ring and at the end of the punching cut strike against each other or almost contact each other.

Abstract: An extension table for work tables such as a circular saw table, in combination therewith. The extension table provides a flat surface with a support frame for attachment to commercially available tables. The support frame is preferably connected to the work table work surface by means of "U"-channel member connected to the side of work surface. The "U"-channel has inwardly directed lips. There is an insert inside the channel connected to a flange of the remaining support frame, the flange and insert bearing against either side of the lips. The height of the flange is adjustable during installation so as to afford a flush alignment of the extension and work table surfaces.

Abstract: The punch machine comprises a U-shaped member having an upper leg, a lower leg and a crosspiece to thereby form a U-shaped work space open on the front side of the punch machine but closed on the rear side by the crosspiece between the upper leg and the lower leg, a punch piston-cylinder unit with a punch tool mounted in the upper leg and a die-bearing member and/or a workpiece receiving member mounted in the lower leg. At least the upper leg experiences a bending moment and a resultant elastic deformation caused by the punching force occurring during the punching operation. To reduce the deformation, a tie bar connects both the lower and the upper legs located horizontally between the crosspiece and the punch piston-cylinder unit. This tie bar passes through or by the work space. It may be moved horizontally according to the punching force to reduce the elastic deformation. Also a process is described for operating the punch machine which keeps the bending moment constant.

Abstract: A turret punch press machine comprising a frame consisting of a base frame portion, column portions extending from the base frame portion, and an upper frame portion horizontally extending from the column portions. The upper frame portion is divided into first and second upper frame portions, a hammer and a hammer driving mechanism are attached to the first upper frame portion. An upper turret of paired ones, each having plural die halves at the circumferential rim portion thereof, is attached to the second upper frame portion, whereas another lower turret is attached to the base frame portion. Even when the first upper frame portion is deformed by the repulsive force and the like of the hammer which is being operated, the second upper frame portion is left undeformed so that the upper and lower turrets cannot have an undesired positional relationship.

Abstract: A portable foldable sawing machine table and stand assembly which includes structural details and arrangements of parts which provide facilities for usage both on the ground and on scaffolding. The invention incorporates a sawing table with movable saw guide tracks adapted to movably retain a normally hand-held, portable electric motor-driven circular saw for rapid and precise angular cross-cutting of work pieces and in case of scaffold mounting of the table and stand provides for elevation of the table assembly with variations in elevational movement of the scaffold to which it may be releasably yet rigidly attached thereby providing convenience, and added safety for a workman applying structural materials to the vertical faces, for example, of a building structure.

Abstract: The table of a mitre saw has an extension table detachably attached thereto at each end. The extension table carries a fence in alignment with the mitre table fence, and the fence carries a movable stop and index scale. The stop can be fit on either the left or right extension table fence. The mitre saw is preferably mounted on its own base, with the base being provided with wheels for easy transport and removable legs for support. The left and right extension tables each have pivotable support legs and, when detached, the extension tables are carried and protected in a carrying case.

Abstract: A method of and apparatus for controlling the heat deformation of machine tools having a plurality of frames is disclosed in which the temperatures at symmetrical or opposite portions of the frames are measured, analyzed and then utilized to maintain the temperatures of the frames at the same temperature, or to maintain a constant temperature difference between the frame portions. The frame portions may either be heated or cooled to obtain the desired temperature.

Abstract: A cutter for a welding apparatus for cutting a welding workpiece upon welding. In order to facilitate the positioning of the cutter during the movement of the cutter for the cutting operation and to make the entire apparatus small-sized, a shear frame is formed with substantially the shaped of a C, and the opposing portions of the C-shaped shear frame are connected by a connecting rod, enabling the reaction force during the cutting operation to be resisted by the shear frame itself.

Abstract: A band saw for foodstuffs, especially meat and bones, has a housing with a door and spray nozzles operatively arranged inside said housing for spraying a cleaning liquid or drying air onto all saw components inside said housing. Thus, a complete and thorough cleaning and drying of all saw surfaces inside said housing is possible without any appreciable extra effor or man hours. Simultaneously, the environment of the saw is protected against soiling or wetting by the cleaning operation for the saw.

Abstract: This system for guiding the carriage of a circular sawing machine adapted to saw relatively long plates or boards from beneath and provided with a chassis incorporating spaced parallel supporting beams forming a sawing channel between them comprises two guide rails having their longitudinal axes disposed in the same vertical plane as the center of gravity of each supporting beam in order to prevent the ingress of shavings, chips and dust into the carriage rolling means while facilitating the access thereto.

Abstract: A cutting apparatus has a cutting tool mounted on an e.g. pivotal support member, under the plane of cut, the cutting tool cutting upwardly through a workpiece to be cut by movement of the support member. The support member is carried by a pivot mounting on a vertical main support plate, the pivot mounting being so arranged that the plane of the cutting tool is substantially aligned with the middle of the pivot mounting. The tool feed forces are applied to the support member close to the notional plane of pivotal movement of the support member, which plane extends through the cutting tool, while the main support plate is adapted to carry clamping means on its top.

Abstract: A chain saw cutting table comprising a chain saw support table assembly, removable front and rear leg assemblies for the support table assembly, an adjustable chain saw bar support assembly operatively positioned on the support table assembly and a trigger/switch assembly to activate a chain saw secured to the support table assembly and having a connection to the front leg assembly.

Abstract: A portable workbench is constructed so as to accept miter saws of any size in a simple and convenient manner. The workbench comprises a power tool supporting site and a workpiece supporting surface wherein the power tool supporting site and workpiece supporting surface are adjustable in a substantially vertical direction relative to each other. The power tool supporting site and workpiece supporting surface are each constructed of two frames which are adjustable in a substantially horizontal direction so as to accept any size miter saw on the power tool supporting site.

Abstract: A machine tool, typically a band saw, has a support carrier or carriage for bearings to journal saw band pulleys, guide attachment elements for saw band guides, attachment elements for a motor, and coupling elements to couple a feeding arrangement to the carrier or carriage; in accordance with the invention, the carrier or carriage is a cast structure essentially and primarily consisting of concrete polymer, into which the respective bearings and attachment elements are cast. The bearings and attchment elements may be formed as metal or plastic plates, sleeves cast into the concrete polymer and the like.

Abstract: A saw table outfit is made up of a table frame manufactured using lengths of aluminum section. There is a base plate mounted on the frame for supporting a power saw. In the base plate there is a gap or hatch which is covered by a plate with a slot in it for the blade of the power saw. Under the base plate stop and guide elements for the power saw are formed by the material of the plate. The plate and hatch are formed with plural interlocking teeth and the relative position between the plate and hatch can be changed by selecting which teeth of the plate and hatch to interlock.

Abstract: An alignment mechanism for punch presses and the like, comprising a base having an upper support surface; the upper support surface having a plurality of load oriented spaced shaped recesses; a base alignment sleeve positioned in each of the recesses and conforming thereto and extending upwardly above the upper support surface; a frame positioned on the upper support surface and having a portion extending upwardly therefrom; the frame having a first set of a plurality of load oriented spaced shaped recesses for cooperating with the plurality of base recesses for positioning the alignment sleeves in the first set of recesses for aligning the frame with the base; the upwardly extending portion of the frame having an uppermost surface; the uppermost surface having a second set of a plurality of load oriented spaced shaped recesses; a crown alignment sleeve positioned in each recess of the second set of recesses and conforming thereto and extending upwardly above the upper row surface; a crown positioned on the u

Abstract: A portable machine tool, comprising a base structure, a work surface supported by the base structure for supporting, in use, a workpiece, and a column pivotally connected to the base structure and being pivotal between an upstanding operative position in which the column extends upwardly above the work surface and a lateral inoperative position. An operating unit is attached to the column and is supported thereby above the work surface in the operative upstanding position for operating, in use, on the workpiece. A locking arrangement releasably secures the column in the operative upstanding position. Preferably the column is pivoted behind and to the rear of the base structure, and a part of the work surface is removable to expose a space inside the base structure in which the operating unit is at least partially housed when the column is pivoted to the inoperative lateral position. In this way the machine tool, which is preferably a radial arm saw, is made more compact for transporting and/or storage.

Abstract: A horizontal hydraulic bar stock shear is disclosed having three spaced bolsters which are clamped toward each other by four tie rods. A piston and cylinder actuator is located on one side of a central bolster and a die set assembly is mounted on the other side of the center bolster. A pair of mounting yokes are provided adjacent to the associated bolsters and the die set elements are clamped at their ends against such yokes. The end-clamped elements include a pair of side plates which laterally locate the dies. A manually removable cover assembly closes the upper side of the dies and the dies are supported on spaced rails which provide openings through which debris can fall out of the die assembly.

Abstract: A table extension for a table saw comprises a generally rectangular member extending from one end of the table, and a clamp for securing the member to a rail at that end of the table such that the top surface of the member and that of the table are substantially coplanar. A leg structure is secured to the underside of the member, which leg structure projects downwardly terminating in rollers which are adapted to engage a bearing plate on the saw table support. A pair of brace rods extend upwardly from the leg structure for engagement with a bottom plate on the underside of the extension.

Abstract: A plastic tubing cutting device, to be used in the field or shop, and which severs in a clean way such tubing. A mandible having a channel in which the tubing seats is pivoted by means of a handle, the tubing engaging a severing blade in an upward pivotal motion for the mandible. The mandible is pivotally mounted on a vertical member of an inverted L-shaped frame which also includes a horizontally-disposed stabilizing element. The blade is secured between the vertical member and stabilizing element. The inverted L-shaped frame is secured to a rigid frame and extends forwardly thereof, the rigid frame including laterally extending balancing members for the device. Additional features of a locking means for the device when not in use, of a safety shield for the body and eyes against flying plastic fragments, and trough and guide for tubing seated in the channel, are provided.

Abstract: A panel grooving apparatus has a table for supporting a panel at a working level. A rail extends along a side of the table and a working assembly is mobile on that rail. The working assembly is selectively immobilized in various grooving positions by stops movable and selectively arrestable along the rail and engageable by part of said working assembly. The panel is releasably retained on the table by movable peripheral elements thereon. In a simplified embodiment, the working table may be reduced to a ruler on which a shoe of a rectilinear guide slides.

Abstract: A portable table assembly for a hand-held portable circular saw of the kind having a base plate and a motor rotated circular saw blade. A boxlike saw table has a substantially planar horizontal top pendently supporting the portable circular saw therebeneath with the blade rising up through a slot in the table top. The upstanding opposite sides of the upstanding rectilinear base of the table supports opposite edges of the table top. A boxlike, open bottom, back-up table is positionable behind the saw table for guiding portions of a workpiece cut by the saw and includes a horizontal top and upstanding rectilinear base with opposite sides supporting opposite edges of the top. Common, separable, knockdown leg units support both tables for use. The back-up table is invertable to nest the saw table therein and therewith to define a storage compartment sized to receive the knocked-down leg units for storage and transportation.

Abstract: A remote control bench mounted chain saw apparatus for cutting firewood, includes a chain saw device having handle, trigger, body and bar chain. Also included is a bench having a first support member with an interdigital slot, a second support member having a cooperating interdigital slot for mating with the first support member to form a cross, and a top member hingedly mounted on one of the support members on a side parallel to its slot, the top member being further adapted to detachably engage the other support member on a side parallel to its slot when the cross is formed to position the top member in a horizontal position. The top member includes means for restraining the handle and body of the chain saw and positioning the saw to permit access to the top of said bar and chain. Finally, remote control means are attached to the trigger of the saw and have an activator positioned remote from the saw and the top member for activation of the saw triggered by pressure applied to the activator.

Abstract: An apparatus for transporting, cutting and dispensing heavy web sheet material such as cardboard, plastic film and the like, while in roll form. The apparatus includes a manually wheelable frame that can be selectively raised and lowered by a retractable handle at its rearward end to support the frame on a pair of front wheels for transporting the roll to the jobsite. Lowering the apparatus onto fixed rear legs supports the frame in a rest position for cutting and dispensing the sheet material. The frame has upright front and rear standards mounted in asymmetrical opposed relation on one side of the longitudinal center line of the frame. Thus, the roll is readily mounted in a stabilizing manner substantially along the frame center line by means of its roll axle shaft being supported on the inboard side of the standards.

Abstract: There is disclosed a cutting press adapted for the cutting of paper, such as discarded paper money. The cutting device is mounted in a support having the shape of a case with open side walls, a feeding conveyor passing through the case forwarding the paper to be cut to the press.

Abstract: An electric food slicer includes a cutter rotated by an electric motor. The motor is housed in a motor housing removably received in the main body, so that the motor is not actuated unless the motor housing is in the main body. A support for supporting a slice plate thereon is removably attached to the main body and is rotatable when not in use into an inoperative position in close proximity to the main body without being disconnected therefrom. A food clamp is removably supported on the slice plate. All these parts of the slicer can be held together in a compact shape around the main body for the storage or packing of the slicer. An electric cord connected to the motor can be held in a compact shape in the slice plate support. All the parts including the main body, except the motor housing, can be easily detached from one another and washed in a usual way to keep the machine in a sanitary condition.

Abstract: A sheet metal slitter of the type having a pair of parallel shafts journalled at spaced axial points and a slitter roll on each shaft, the rolls cooperatively defining a cutting nip. The invention resides in a bearing assembly with bearings cantilevered from a support element. The bearings are positioned, respectively, adjacent the pair of slitter rolls on the shafts to resist forces tending to separate the shafts during metal cutting. The support element is slotted to accommodate the cut portions of the workpiece without spreading or tearing and with substantially no bending.

Abstract: The specification discloses a mill including a track having separable sections clamped to ground bearing cross members to which a log to be ripped is dogged. A carriage has deeply flanged rollers engaging opposite track members and supporting a post. A crossarm support is adjustable up and down the post and a horizontal crossarm is adjustable horizontally on the support by a rack and pinion drive. A saw bar of a chain saw is bolted to a quadrant which is quickly adjustable between a vertical position and a horizontal position of the saw bar. A handle on the carriage is adapted to be pushed by an operator to move the carriage along the track, and a bowden-wire control to the throttle of the chain saw is mounted on the handle.