Abstract: A flitch or cant is successively transported by a pair of differentially operated clamps, first to a scanning station, and then to a sawing station where the wane is removed. A series of flitches is processed in this manner such that as the wane edge from a first flitch is sawn, a next flitch in succession is optically scanned. The sawing and scanning is accomplished by means of a combination saw and scanner which moves in a direction longitudinal of the flitch as respective flitches are held in stationary positions at the sawing station and at the scanning station. Between passes of the saw-scanner combination, the sawn flitch is conveyed away and the next flitch in line is conveyed forwardly to the sawing position while being skewed by the clamps in accordance with the characterization generated by the scanner.

Abstract: The present invention relates to a process and a device for producing burr-free workpieces by blanking using a counterblanking tool. The counterblanking tool has an upper tool and a lower tool which include respectively an upper blanking die and a lower blanking die and an upper punch and a lower punch. The counterblanking tool further includes a ram plate which moves one of the upper and lower tools towards the other of the upper and lower tools. The ram plate moves in a continuous ram stroke during which a blanking strip from which a workpiece is to be blanked is clamped between the upper and the lower tool. During the initial portion of the blanking operation, the blanking dies remain in place while a first one of the punches, travels further and a second one of the punches travels back until a limit stop is reached. During this travel the first punch cuts partly into the blanking strip.

Abstract: The present invention is directed to an apparatus for advancing the leading edge of a corrugated web for positioning the web for a secondary operation, such as a cutting operation to cut a discrete sheet from the web. The web has a plurality of alternating peaks and valleys. The apparatus comprises an endless loop conveyor including a plurality of spaced support bars for contacting the valleys of the web. At least one vacuum source holds the web against the support bars. A motor and a distributed control system repeatedly advance the conveyor and the leading edge of the web from the entrance end to the exit end of the conveyor. A rotary encoder and a sensor sense the presence of a support bar near the position for applying the cutting operation. The vacuum source is de-activated, and at least one pressure source is activated to remove the cut sheet from the support bars.

Abstract: A roller knife cutter includes a first knife shaft pair for severing a ferromagnetic metal sheet into sheet metal strips forwarded in a first direction of advance; and a plurality of substantially coplanar plates arranged downstream of the first knife shaft pair in a series in the first direction of advance. The plates are separated from one another by a clearance. The cutter further has an endless belt having an upper run moving in a second direction of advance and positioned in the clearance and extending parallel therewith. The upper run has a lowered position in which a top surface of the upper run is at a level below the top surfaces of the plates and a lifted position in which the top surface of the upper run is substantially coplanar with the top surfaces of the plates; and a plurality of individually height-adjustable magnet units arranged in a series underneath the upper run parallel to the second direction of advance.

Abstract: An apparatus for drilling short and long holes and for fitting bolts to the short holes has a generally stationary support positioned adjacent the face and a turret angularly displaceable on the support between two end positions about a longitudinal turret axis. A drill slide longitudinally displaceable on the turret carries a drill having a rotatable stem centered on a drill axis parallel to the turret axis. A drill bit can be fitted to the stem. A bolt slide longitudinally displaceable on the turret adjacent the drill slide carries a bolting unit having a ram centered on a bolt axis. A magazine mounted on the support adjacent the turret has a plurality of seats adapted to hold the bolts and extension rods fittable between the bit and the drill stem, depending on whether the device is to be used for short-hold drilling and bolting or for long-hole drilling.

Abstract: A cutter assembly for cutting sheets of relatively thin material is disclosed. The cutter assembly comprises a base member, a pair of support posts securely attached to the base member, and an elongated guide rail having a first end and a second end supported by the support posts in laterally spaced relation to the base member. A cutting strip is securely retained by the base member for receiving the sheets of material thereon. There is a cutter head slidably mounted on the elongated guide rail, and a cutting wheel operatively retained in rotatable relation by the cutter head. A spring biasing means biases the cutting wheel toward the cutting strip such that the cutting wheel is received in intimately contacting relation against the cutting strip. The cutting wheel moves along the elongated guide rail so as to intimately contact the cutting strip along the length thereof, so as to thereby permit cutting of the sheets of material when they are between the cutting wheel and the cutting strip.

Abstract: An apparatus for unnailing wood pallets includes a frame, a first cutter assembly and a second cutter assembly positioned vertically above the first. The first cutter assembly includes a pair of elongated horizontal support arms supporting a cutting head at one end, downwardly biasing springs at an opposite end and a pivot between the ends. The second cutter assembly includes a pair of elongated horizontal support arms supporting a second cutting head at one end and a pivot at an opposite end that is coaxial the pivot of the first cutter assembly. The second cutter assembly is biased upwardly by springs between its support arms and those of the first cutter assembly. A stringer return member is horizontally movable with a pallet-moving cradle and includes a member which is pivotally mounted to the cradle at one end and has a follower at an opposite end to follow a track that moves with the support arms in order to keep the member positioned between the pair of support arms.

Abstract: A method and apparatus for cutting a longitudinally advancing a rod of tobacco-containing material into lengths including a cut-off wheel having two or more blades equally spaced around the wheel periphery, a sharpening stone driven independently by a motor at a fixed location to sharpen one side of each blade as the wheel rotates, and a deburring stone oscillating in a path between two points at a frequency such that the stone intersects the path of travel of each blade for deburring the other side of each blade. The deburring stone may be located on the ledger device of a cigarette manufacturing machine where the ledger is oscillating at a frequency that is a multiple of the number of blades of the cutoff wheel for each revolution of the wheel.

Abstract: A straight-line cutting machine is comprised of a transverse holding device and at least one cutting magazine consisting of a plurality of knife holders. The cutting magazine is connected to the transverse holding device, whereby the knife holders are spaced at a fixed distance relative to one another. Each knife holder is provided with an individually controllable drive so that each of the pressing knives may be raised and lowered individually. By providing cutting magazines with pressing knives that are spaced from one another at a fixed distance, it is possible to adjust the cutting width in a simple manner and with greater accuracy.

Abstract: A blade for cutting cylindrical structures is disclosed. The working face of the blade is adapted for piercing and cutting. The blade of the invention works to cut cylindrical structures without substantially deforming the wall of the structure adjacent to the cut. The blade may be of use in a variety of devices for cutting cylindrical structures.

Abstract: The invention provides a bandmill having an endless loop of bandsaw blade which is automatically strained to a desired tension, and automatically driven at an accurate location or tracking position. The bandmill runs on a pair of spaced co-planar wheels, which are forced longitudinally apart to apply strain to the bandsaw. Actual saw strain is automatically detected by a force transducer within the strain mechanism, and the actual saw strain is automatically compared electronically with a desired saw strain. A servo-controller automatically adjusts distance between the wheels to vary force therebetween so that actual saw strain is varied to approach the desired saw strain. Also, actual tracking of the saw blade relative to the wheels is automatically sensed by sensors located adjacent the edge of the saw blade.

Abstract: A cutter apparatus having a fixed blade in an opening of a paper feeding guide; and a movable blade having a cutting portion which enters into the opening. A paper holding plate is provided on the movable blade slidably in the cutting direction. The distal end of the paper holding plate is kept projected by a sliding mechanism in the cutting direction from the distal end of the cutting portion of the movable blade. With the paper holding plate firmly holding the paper against the feeding guide, the sliding mechanism further moves the movable blade into the opening. On carrying out the cutting operation, firstly the paper holding plate slidingly reaches the recording paper and tightly keeps the paper stationary. Thereafter the cutting portion of the movable blade moves forward enters into the opening to cut the paper. The result is that the recording paper does not escape when undergoing the cutting operation, the cutting quality can be kept excellent to a certain extent irrespective e.g.

Abstract: A tire cutting machine that cuts the sidewalls from passenger car tires. The cutting operation is performed on both sidewalls simultaneously. The inner side of the tire tread rests on two rollers so that the tread becomes the reference point for the cutting blades. The tire tread is brought into contact with a drive wheel positioned on the outside of the tire tread and opposite one of the rollers on the inner side of the tire tread. The drive wheel causes the tire to rotate in a vertical plane. Two cutting blades (one on each side of the tire) are brought into contact with the sidewalls to sever them from the tread. As the cutting blades move towards the sidewalls, guide rollers move in unison with the cutting blades to center the tire between the blades and keep the tire centered as the sidewalls are cut.

Abstract: An improved cutter is provided for a plasterboard sheet, used in conjunction with a conventional T-square having a head and an elongated rule extending at a right angle from the head. The improved cutter consists of a mechanism for retaining a utility blade on the elongated rule of the conventional T-square in a proper position. When the head of the conventional T-square slides along one straight edge of the plasterboard sheet, the utility blade will make a score line across the plasterboard sheet, whereby a piece of the plasterboard sheet can then be snapped off.

Abstract: An ultrasonic cutting device includes an ultrasonic vibrating device and an elongated cutting blade. The ultrasonic vibrating device generates vibrations along a longitudinal axis and includes two or more parallel support members extending in the direction of the longitudinal axis of vibrations. The elongated cutting blade, positioned in a plane transverse to the longitudinal axis of vibrations, is connected at each of its respective ends to adjacent support members, at anti-nodes of the support members.

Abstract: A register punch has a plurality of punch assemblies for making holes and notches in a sheet member. Adjustable stops located adjacent the punch assemblies cooperate with an edge of the sheet member to locate the sheet member relative to the punch assemblies. The stops have rotatable members with stop faces which provide a plurality of spaced stops for the sheet member.

Abstract: This invention, a tape dispenser with a sliding tape axle, is designed to eliminate the problem and disturbance of a loosened or missing tape axle of traditional tape dispensers with separate parts joined together. It uses a structure that fastens the tape axle and the base together. Its tape axle is a cylindrical body with a pair of sliding slots on one side to match a pair of horizontal tenons on a sunken surface of the base, and a pair of tenons at its bottom surface to fix the tape axle into an insertion slot in the sunken surface on one end and a sunken rim on the other side of the tape compartment, restricting the horizontal movement of the tape axle and avoiding its loosening from the base, and thus forming a tape dispenser with a sliding tape axle.

Abstract: A device automatically applies an object (7) to a cutting edge (11) of a knife 10), and automatically makes an initial cut in the object (7), in microtomes, especially ultramicrotomes. Force sensors (27,28), length sensors (29) or other sensors, an elecrotronic control unit (25) and an encoder (22) coupled to a drive device register forces (k,-k) connected with the separation of sections by the knife edge (11) or variations in the system triggered by these forces. Subsequently, via the electronic control unit (25), a transition from a rapid speed or rate of feed to a lower cutting speed or a lesser rate of feed for making an initial cut is automatically performed. A visual and/or acoustic signal informs the user of this change. Signals (S.sub.1, S.sub.2) from the sensors (27-29) serve for automatic adjustment of the position of two switch-over points (U.sub.1, U.sub.2) from the rapid return speed (V.sub.R) to the slower cutting movement (V.sub.

Abstract: Materials are cut by ultrasonically vibrating a cutting blade transverse to the plane of passage of the blade through the material and passing the vibrated blade through the material. An ultrasonic cutting device combines one or more cutting blades with an ultrasonic vibrating de ice which vibrates the blades transverse to the planes of passage of the blades through the material when the cutting device is in operation.

Abstract: A dispensing nozzle comprising a plate overlying a bore defined through a countertop for the passage of bags therethrough from a subjacent storage position. The plate defines an elongate zig-zag slot for the restrictive movement of bags therethrough upon a manual pulling of a leading bag. Each manually pulled leading bag is automatically severed from a following bag secured thereto along a line of severance by slot-developed resistance. Introduction of the forwardmost bag of a bag package is facilitated by an enlarged opening laterally of one side of the slot and communicated with the slot through a relatively narrower neck portion. The nozzle may include a tubular sleeve receivable in the countertop bore, with the plate secured to or integrally formed with the sleeve across one end thereof.