Abstract: A sheet cutter includes: a stationary knife including a straight blade part formed in a straight-line shape in a longitudinal direction; a movable knife including a cutting edge part formed in the shape of V-character, opposed to mesh with the straight blade part of the stationary knife, the movable knife being able to freely move toward or back from the stationary knife; a movable knife pressing member for pressing the movable knife against the stationary knife; and a movable knife driver driving the movable knife forward or backward. The movable knife pressing member pressure contacts the movable knife against the stationary knife by a compression coil spring contained inside the movable knife pressing member.

Abstract: An adhesive tape canister includes a reel to mount a roll of adhesive tape. When the adhesive tape needs to be cut, a handle portion of the adhesive tape canister is pressed, a first blade is moved towards the second blade. The adhesive tape can be cut by the first blade and the second blade in response to the first blade moving to the second blade.

Abstract: The present invention relates to a device and a method for holding tool parts together during a hydroforming process. The device comprises a first portion comprising a first force transmitting surface and a second portion comprising a second force transmitting surface, which are connected by means of a pivot, and a length variable power member which, with a force, tends to turn the second portion in relation to the first portion around the pivot by means of a first lever which is longer than a second lever by means of which a resultant larger force is created which acts between said force transmitting surfaces for holding the tool parts together during a hydroforming process.

Abstract: An index cutter (I) forms a thumb index on a sheet. The index cutter (I) includes: a flat plate-shaped first base member (1) having a first blade portion; and a flat plate-shaped second base member (2) rotatable coupled to the first base member (1) and having a second blade portion. When the first base member (1) and the second base member (2) are rotated relatively to each other, a part of the sheet is cut by the first blade portion and the second blade portion.

Abstract: In order to selectively reinforce portions of a material web, a cutting and laminating device efficiently produces the required reinforcing strips and then laminates them to the web. In order to efficiently and accurately produce these reinforcing strips, a cross web shear is utilized which is capable of cutting required reinforcing strips from the fairly large web of reinforcing material in an accurate manner. Once cut, a holding and positioning device is capable of grabbing onto the reinforcing strip and appropriately positioning it next to the primary material web. A separate laminator can then attach this reinforcing strip to the web at a desired location.

Abstract: An adhesive tape dispenser for dispensing and cutting a length of an adhesive tape. The adhesive tape dispenser comprises an adhesive tape cutting device. The adhesive tape cutting device comprises a) a resting surface to which a tacky side of said adhesive tape can be adhered while the adhesive tape is being cut, b) two lateral webs extending in the same direction from both edges of the resting surface to serve as guides for the adhesive tape, and c) a cutting blade having a blade edge and positioned on an inner side of one or both lateral webs in such a way that the blade edge is inclined at an angle which is oblique relative to the resting surface. The lateral webs have a height from the resting surface which is the same or is higher than each cutting blade. The adhesive tape dispenser is useful to dispense and cut adhesive tapes comprising a backing of biaxially oriented or highly stretched film, such as polyolefin.

Abstract: A printer is provided with a cutter for cutting recording paper in arbitrary lengths or cutting recording paper with a part left after cutting. A pair of movable blades, at least one of which is displaced in a direction approximately orthogonal to the paper path, are driven in a cooperative relationship to effect a cutting operation with a fixed blade. The dispersion of force required for tearing off the cut recording paper is reduced, a torn trace of a left part after cutting the recording paper looks nice, and the position of a left part after cutting the recording paper can be arbitrarily set respectively without increasing the size in the direction of the recording paper width.

Abstract: A gear drive system for a printer designed to print upon a continuous roll of paper and having a blade used to cut off printed portions of paper from the paper roll is implemented. The gear drive system consists of a drive shaft 330, a slip clutch 401, a clutch gear 116, a drive gear 110, and a staggered gear 112 which controls the paper cutter blade 106. During printing, clutch 401 allows the drive shaft 330 shaft to slip relative to the clutch gear 116. When printing stops, clutch 401 locks clutch gear 116 which is engaged with the first portion of staggered gear 112 and causes staggered gear 112 to rotate until the second portion of staggered gear 112 engages the drive gear 110. Staggered gear 112 is then driven by the drive gear 110. A cutter blade is controlled by staggered gear 112, with the blade cutting off the paper as the drive gear 110 is in reverse rotation.

Abstract: A cutting device including: a support member; a first blade having a linear-shaped cutting edge extending in a lengthwise direction from a first lengthwise end, to a central portion, and to a second lengthwise end of the first blade, the first blade being supported by the support member; and a second blade having a linear-shaped cutting edge extending from a first lengthwise end to a central portion, and to a second lengthwise end of the second blade, the second blade being supported in confrontation with the first blade by the support member, the first blade and the second blade cutting therebetween a sheet-shaped medium by serially contacting each other from the first lengthwise ends to the second lengthwise ends while the second blade presses against the first blade in a thickness direction of the first blade; wherein at least one of the first and second blades has a smaller deformation resistance, with respect to the support member, in its blade thickness direction at its first and second lengthwise ends

Abstract: A universally applicable device for guiding the cable of cable saw systems for sawing concrete, brickwork, natural stone, and other masonry products. A bearing plate supports (and attaches) the guide to a base. A support projects upwardly from the bearing plate. A transverse beam ca be fixed at any height on the support. The transverse beam has one or two free ends. A hollow end beam that can be stopped and rotated by 360.degree. around the longitudinal axis of the transverse beam is disposed on each free end of the transverse beam. The end beam carries deflection rollers on which the incoming and outgoing saw cable is guided to the workpiece and to the cable saw, respectively. Each of the rollers are borne in a roller housing that is rotatable by 360.degree. about the longitudinal axis of the end beam. Any cutting planes or flush cuts and all angles to the work piece can therefore be set, without having to perform any substantial changeover procedure for the cable saw between different cutting jobs.

Abstract: A rotary-type sheet cutter for cutting a continuous sheet material comprising a stationary blade having an end edge extending along the widthwise direction of the sheet material; and a rotary blade having an end edge which rotates about a rotary axis extending along the widthwise direction of the sheet material during rotation of the rotary blade, the end edge of the rotary blade intersection-contacting with that of the stationary blade under pressure so as to cut the sheet material along the widthwise direction when the rotary blade rotates. The rotary blade is formed by bending a flat plate along a bend line which is brought into a state of extending along the widthwise direction of the sheet material, and the end edge and the bend line are arranged to form an angle opening toward a cutting starting side.

Abstract: A cutting machine for sheet material comprising a frame, a stationary knife on the frame and a reciprocating blade cooperating with the stationary knife. A motor on the frame is connected to a gear reducer that is in turn connected to a single push rod through a crank. The push rod is operatively connected to a torque tube that is connected adjacent its ends by link means to the reciprocating blade. Rotation of the crank by the gear reducer will actuate the single push rod and the torque tube operatively connected thereto to reciprocate the reciprocating blade. Spring means for assisting movement of the reciprocating blade are readily adjusted from exterior of the frame of the cutting machine. A rotatable cam follower on the reciprocating blade engages a guide block on the frame for moving the reciprocating blade into proper cooperative engagement with the stationary knife in use.

Abstract: A cutting device includes a moving blade unit rotatable around a rotating shaft and inclined at a predetermined angle against a sheet feeding surface, a receiving blade unit which is movable in a direction towards the moving blade, and an elastic member for biasing a cutting edge of the receiving blade towards a cutting edge of the moving blade. Both cutting edges of the moving blade and the receiving blade are formed with a plastically deformed portion formed by press cutting. By ensuring that each second shear droop region formed in the plastically deformed portion of each cutting edge contacts the other second shear droop region of the other cutting edge, a roll-type paper inserted between the cutting edges can be easily cut.

Abstract: An apparatus for bonding thin film supplied from a continuous roll to at least one bonding surface along the entire length of a discrete printed surface base plate and efficiently cutting the film to a proper length which covers an entire planar surface of the board. Each board is conveyed to a film bonding position and the leading end of the continuous film is transported to the film bonding position that is held by suction. A compression bonding roller moves across the surface of the board and automatically feeds film and bonds the film to the board while leaving a portion of the film loose over the trailing end of the board. A cutter comprising a rotary blade and a fixed blade disposed across the direction of movement of the film and the board is mounted on a slide bed which is moveable towards and away from the film. The rotary blade is obliquely oriented in order to permit the cutting of the film when the blade is rotated in opposition to the fixed blade.

Abstract: A veneer clipper is adapted to make successive cuts continuously while a veneer sheet is being moved forward through a nip formed by a pair of constantly rotating anvil rolls disposed with their axes extending in parallel to each other across the direction in which the veneer sheet is fed. The clipper includes a pair of knife blades disposed on the downstream side of the nip, having cutting edges thereof presented along the nip, and adapted to pivot together in alternate directions between two extreme positions where the cutting edges are placed in engagement with the peripheries of the respective anvil rolls. The cutting edges of the knife blades are of substantially the same length and extend obliquely at an angle with respect to an imaginary line parallel to the axes of the anvil rolls.

Abstract: A sheet material cutter for shearing various widths of sheet material such as aluminum or plastic siding, soffit, facia board and flashing is provided which is readily transportable and useful in cutting a variety of widths of such sheeting. The cutter has a base, a shearing blade of a length greater than the maximum width of sheet to be cut, spaced apart shearing dies mounted on the base and defining a shearing slot through which the blade travels when shearing a width of material, and a post on the base to which the shearing blade is pivotally mounted. The shearing blade includes a pointed section which pierces the sheet material, first the remaining shearing edges of the blade shearing the material to each side of the pierced area to complete cutting of the sheet material.

Abstract: This invention relates to an electromechanically operable apparatus for severing strip, such as a paper tape or plastic film tape, which is dispensed by a power-operated dispenser. A swingable cutter blade is connected to a crank, which is operated by a gear train via an eccentric drive and a connecting rod, which is provided with a cam track cooperating with the crank. In dependence on the condition of the cam track and the sense of rotation of a motor for driving the gear train the extent of the angular movement imparted to the swingable cutter blade can be selected for the making of a complete cut or a partial cut through the strip.

Abstract: The invention provides a cutting assembly for cutting a moving strip of thin flexible material across its width, avoiding the possibility that the flexibility of the material will permit it to move away from the knife edge and not be cut, or be cut unevenly. The assembly comprises a knife-supporting member which is engaged with the moving strip and displaces it out of its usual path close to a roll in the path, so that a very short length of the strip is between two contacting members in the path adjacent to the knife. The knife is provided along its length with a plurality of distributed strip-engaging points pointing in the direction opposite to its direction of movement, which are moved into engagement with this short supported length of the strip, so that the strip movement drives it onto the points, and thereafter continues the movement of the strip into positive engagement with the succeeding knife edges.

Abstract: A paper tail cutter for cutting and deflecting a tail from a moving sheet of paper. A cutter body member is pivotally mounted to swing a knife up through the moving sheet of paper, thereby cutting a narrow tail at one side of the moving sheet. The tail is supported by the body member and deflected away from the moving paper sheet for delivery to apparatus such as a stack of calender rolls.

Abstract: A construction for a paper or film cutter for use with strip printers or photo copiers working from continuous rolls of paper or film. It consists of a rotary blade and a stationary blade mounted in a sheet metal U-frame. The rotary blade is driven by a rotary solenoid which provides the inboard bearing for the rotary blade and which is resiliently mounted to the frame to allow for the alignment of the outboard bearing of the rotary blade. The stationary blade is loosely mounted in slots in the U frame. The slots are dimensioned and located to position the cutting edge of the stationary blade to be askew of and to intersect the cutting edge of the rotary blade to provide a cutting point of contact between the two blades. The cutting point of contact traverses the length of the two blades during the cutting stroke.

Abstract: A cutter for cutting material in tape form comprises a movable blade of circular segment shape in cross-section and a fixed blade. The movable blade is coupled to a rotating shaft so as to move it in front of the fixed blade. A first support carrying the fixed blade is U-shaped in cross-section, the inside of its bottom being semi-circular. A longitudinal first opening intersects the bottom of the first support and a groove opens laterally into this first opening in its inside surface, the groove accommodating the fixed blade. An auxiliary support is generally trough-shaped and has a bottom which is semi-circular on the inside. A second opening intersects the bottom of the auxiliary support, the edges of which are inserted between the sides of the U shape of the first support. A substantially cylindrical housing for the movable blade is defined between the first and auxiliary supports.

Abstract: A tear-open strip is severed from a band of material having a width equal to the desired length of the tear-open strip by cooperation between a stationary knife-edge defining member and a pivotal knife-edge defining member. The knife edges form chords of a hyperboloid of revolution and are inclined relative to one another. The pivotal knive-edge defining member is provided with suction ports adjacent to the cutting edge whereby a severed strip may be transported by the knife to an intermittently moving sheet of packaging material to which the strip is subsequently bonded.

Abstract: A device for dispensing tape in desired lengths from a supply reel which is rotatably supported in a housing and fed out by means of a manually actuable drive wheel which also has, in the housing, a knife which is manually actuable in the direction of the tape to cut the tape. The device makes it easy to single-handedly separate from the supply reel a desired length of tape.

Abstract: A device for opening envelopes includes a movable knife blade which is mounted on a swingable knife holder and is urged towards a complementary edge which is preferably formed by a further knife blade. The movable knife blade is inclined in its longitudinal direction. A cutting operation is effected at the point of engagement of the movable knife blade with the stationary one. Movement of the movable knife blade causes the edge of an envelope be gradually severed. The knife blades are supported on a base part which preferably has, underneath the cutting parts, a removable waste drawer.

Abstract: A device for cutting roll tape, including a frame, a serrated rotary blade pivotably mounted in the frame, the rotary blade having a plurality of cutting teeth formed by grooves running perpendicular to the axis of the rotary blade and a flat surface cut across the rotary blade, and at least one continuous groove at each end of the serrated rotary blade adjacent the plurality of cutting teeth, a serrated stationary blade pivotably mounted on the frame, the stationary blade having a plurality of cutting teeth, the stationary blade cutting teeth being meshable with the cutting teeth on the rotary blade, the stationary blade also having at least one long tooth at each end of the stationary blade adjacent the plurality of short cutting teeth, the long teeth reaching the tangency of the continuous grooves and riding therein, and wherein the cutting teeth are sufficiently shortened to provide the desired clearance at the cutting interface, and a biasing element for biasing the long teeth of the stationary blade int

Abstract: A dispenser for sheet material includes a housing defining at least one compartment for holding a continuous roll of sheet material. A cover for the compartment, pivotally mounted on the housing, includes a cutting edge located near its free end. The housing includes a member for holding the sheet material being cut.

Abstract: A material engaging apparatus, such as a press brake or shear, has first and second jaw members pivotally mounted together and with coordinating material engaging and working members in the jaw members. An extensible ram positioned along and between the rear sides of the jaw members has one end pivotally mounted to the second jaw member and another end pivotally mounted to a rear end of a lever arm extending from front to rear and spaced adjacent the first jaw member. A front end of the lever arm is pivotally mounted to a front end of the first jaw member. A connecting link extending between the first and second jaw members has a first end pivotally mounted to the lever between the front and rear ends thereof and a second end pivotally mounted to the second jaw member. The connecting link acts as a movable fulcrum for the lever arm and is movable therewith to provide substantially constant leverage as the lever arm moves to urge the first and second jaw members together.

Abstract: A tape container and dispensing apparatus formed of plastic material including means for advancing the tape to dispense a strip of any desired length and integrally formed shearing means to provide scissors-like shearing action to sever the tape strip.

Abstract: An improved microfiche reader-printer includes an electro-mechanical control mechanism, roll paper storage and feed mechanism, paper cutter and a corona paper charger unit in the upper portion of the machine. Disposed in the lower portion of the machine are a paper developer, dryer and discharge chute, a light source, microfiche carrier and an optical lens system. The optical system includes two moveably disposed mirrors selectively operable to project one selected fiche image either forwardly onto a viewing screen or rearwardly to an exposure station where a selected size paper is momentarily retained to permit exposure. The control mechanism functions to effect sequential operation of each of the machine elements whereby a selected fiche image is read and printed.

Abstract: A paper tail cutter for cutting .Iadd.a leading edge upon .Iaddend.and deflecting a tail from a moving sheet of paper. A cutter body member is pivotally mounted to swing a knife up through the .Iadd.path of .Iaddend.the moving sheet of paper, .[.thereby cutting.]. .Iadd.to engage .Iaddend.a narrow, .Iadd.previously severed, .Iaddend.tail at one side of the moving sheet. The tail is supported by the body member and deflected away from the moving paper sheet .Iadd.as the leading edge is simultaneously cut thereon .Iaddend.for delivery to apparatus such as a stack of calender rolls.