Abstract: A transverse cutter for fine papers consists of two mutually co-operating cutter rolls, of which one is directly driven by two electric motors. The upper cutter spindle is driven with the lower cutter spindle by a gear wheel driver at each end, which drive has an inclined set of teeth with constant pitch circle diameter and can be adjusted by axial displacement to be free from backlash. By means of a hydraulic clamping bushing provided between gear wheel and cutter spindle, a radial prestress between the gear wheels is obtained, which makes possible a backlash-free setting around the entire circumference.

Abstract: An improvement to a dual arbor scrap chopper used for cutting scrap edge trims associated with flat sheet metal strip production. The scrap chopper utilizes a pair of rotary arbors, each having identical angularly displaced multiple sided blades aligned for progressive cutting registration with each other as the arbor rotates. Each of the blades are defined as a symetrical multi-sided configuration allowing each blade to contain multiple usable cutting edges which can be exposed upon inversion, inverting or rotation of the blade selectively in its respective rotary arbor.

Abstract: Improved cutting device for an apparatus for the simultaneous dispensing and cutting of bands of wound material. This device is distinguished in that it comprises two independent blades located side by side at an angle, each of which corresponds to two half-lengths of the drum, whereby each of the blades is fixed to blade carriers oriented angularly in the drum and is associated with a follower roller which cooperates respectively with a fixed cam of the same profile located on each lateral wing of the housing of the apparatus, whereby said cams are offset angularly in order to permit the progressive and successive exiting of each blade and to define two cutting zones of the band of material in the apparatus while obtaining only a single clean cutting line of said material perpendicular to its lateral edges.

Abstract: A method and apparatus for producing homogeneous bread crumbs including a conveyor for conveying bread loaves that securely holds the bread loaves while they are sliced by a rotary involute knife slicer into slices of substantially uniform thickness, a dicer that dices the slices into homogeneous bread crumbs and a chute with a deflector and a compressed air source which conveys the bread slices from the rotary involute slicer to the dicer and aligns and spaces the slices for input to the dicer.

Abstract: A machine for cutting animal tissue into pieces, comprises(a) a frame,(b) slicer means including slicers carried by the frame to rotate for slicing the tissue into elongated strands fed along parallel paths of widths determined by spacing of the slicers,(c) rotary cutter means including cutters carried by the frame to rotate and intercept the strands fed along said paths, and for cutting the strands crosswise thereof and at intervals predetermined by rotary spacing of said cutters, thereby to form said pieces having predetermined sizes.

Abstract: Cross-cutter for cutting web material, in particular corrugated cardboard, comprising a pair of knife shafts which are tubularly supported for rotation on a core secured in the machine frame and commonly driven by a drive means, the knives temporarily contacting each other during the cutting operation under bias, if necessary, at least one end of at least one core having associated therewith a power unit which produces a flexural moment at the core such that the knives abut against each other under bias during the contact.

Abstract: A holder for mounting a knife blade in a rotating roll. The holder comprises a plural pairs of clamp members for holding a knife blade with its interior edge against a reference in a rotating roll so as to adjustably position the cutting edge of the blade along the length of the roll. Each clamp member has opposed planar surfaces for contacting a segment of the blade and each clamp member is adjustable to position its planar surface in a direction generally perpendicular to the plane of the blade. Each clamp member is also adaptable to align its planar surface to the blade direction along the length of the roll as a clamping force is applied. When clamped, the blade contacting surface of at least one of each pair of clamp members has a fixed angle so as to resist a cutting force acting perpendicular to the plane of the blade at its cutting edge.

Abstract: An improvement in paper converting rewinders in which bulk rolls of paper are converted into consumer product rolls of paper such as tear-separable multi-sheet rolls of toilet tissue or paper towels. In such rewinders of the type which include a perforator cylinder, and a bedroll/chop-off roll combination, changes in sheet length and/or sheet count commonly require changing one or more of such rotating, paper contacting machine elements. The present invention enables broad changes in both sheet length and sheet count in such rewinders without changing either the perforator cylinder or the bedroll or the chop-off roll. The invention also enables adjustments to assure true cross machine direction orientation of inter-sheet lines of perforation throughout the range of adjusting sheet length and/or sheet count per product roll.

Abstract: A rotary drum shear including two drums rotating in the opposite direction to each other and each having a spiral knife on the periphery thereof so that material fed between the drums is cut by engagement of the knives brought by the rotation of the drums in which the knives are formed so that a distance from a rotational center of the drums to the engagement position of the knives is gradually reduced along an axis of the drums from a start point of the engagement of the knives.

Abstract: A rotary die cutter includes a frame having spaced side plates. An anvil roll and a die plate roll are rotatably supported in bearing housings which are mounted in vertical slots in the side plates. A roll gap adjustment unit includes a lead screw and a follower member fixedly attached to the anvil bearing housing. The lead screw is threaded into said follower and projects upwardly. A thrust bearing is mounted on the sprocket and the upper bearing housing rests on the thrust bearing. An actuator is mounted to the side frame and a chain and sprocket couples it to the gap sprocket. The actuator includes a gear reduction drive means having a rotating input dial and an output coupled to the actuator sprocket to rotate the chain and sprocket at the rate of substantially one revolution for each one hundred revolutions of the input dial. Cam roller units engage the outer bottom ends of the anvil roll. Spring-loaded preload cam roller units engage the opposite top ends of the die cut roll.

Abstract: A food product is fed to and through a slicer blade of the type included within a commercial-scale meat slicer such as that used in slicing pork bellies into bacon slices. A slidable shelf is provided for temporarily storing the food product and for depositing the food product generally along a feed path after the butt portion of a previously sliced food product hassubstantially cleared the feed path. The thus deposited food product is then pushed into a prefeed orientation and gripped for feeding to and through the slicer blade.

Abstract: A rotary web shearing machine equipped with pairs of rotating helical blades, the improvement for adjusting the clearance between the blades which makes it unnecessary to adjust the blades by their individual holders while the machine is stationary, but makes it possible to effect this adjustment without shutting down the machine. This is accomplished either by providing that one of the blades remains in a fixed axial position, while the companion cutting blade holding shaft is moved axially with respect to the fixed blade. This is accomplished by the novel mechanism on the end of the shaft of said blade mounted in a special bearing and housing and equipped with an adjusting screw and nut which permits imparting of axial motion to the shaft while it is in rotation if desired and thus effecting a variation in the clearance between the pair of helical blades eliminating the necessity of shutting the machine down and resorting to manual adjustment of the blade holders to effect proper clearance.

Abstract: A cutting apparatus for an electrostatic copying machine includes a fixed blade having a straight cutting edge, a rotary shaft mounted for rotation on the frame of the machine, and a rotary fixed to an carried by the rotary shaft, the rotary blade having a spirally curved cutting edge. A wrap spring clutch is capable of transmitting rotation of a continually rotating gear to the rotary shaft and rotary blade. The wrap spring clutch is prevented from operation by a control cog of a double cog member. An inclinable member operates the double cog member to release the wrap spring clutch to enable rotation of the rotary shaft and rotary blade. The double cog member has a rotation lock cog which stops the wrap spring clutch after a predetermined rotation of the rotary shaft and rotary blade.

Abstract: A synchronous rotary cross cutter for cutting a material web of paper or the like has two drums which synchronously rotate about parallel axes at opposite sides of the material web, and a cutting element on each drum. One of the cutting elements is elastically yieldable, and the drum for this cutting element has a helical bearing surface with an axis lying on the cutting edge of the elastically yieldable cutting element. The helical surface of the drum has such an inclination that the free angles of the elastically yieldable cutting element at the beginning and at the end of the cutting line are identical.

Abstract: An apparatus which subdivides an adhesive-coated web of paper or imitation cork into a succession of uniting bands which are draped around groups of coaxial cigarettes and filter plugs to form filter cigarettes has two drums rotating in opposite directions about parallel axes. One of the drums is a suction drum and serves to advance the leader of the web toward the nip of the two drums where the leader is severed to yield successive uniting bands. The suction drum has a number of equidistant axially parallel peripheral grooves each disposed in front of a cutting edge. The other drum carries detachable knives with cutting edges extending beyond the periphery of the other drum so that they can penetrate into the oncoming grooves during travel past the nip. The drums are rotated by mating gears and the radius of the cylinder which is formed by the cutting edges of the knives exceeds the radius of the pitch circle of the gear which drives the other drum.

Abstract: Method and apparatus for sectioning traveling elongate material. The apparatus has a pair of cutting cylinders mounted for rotation with their axes substantially parallel. Cutting edges are formed at the peripheries of adjacent tapered end faces of the cutting cylinders, the cutting edge of one cylinder being in close proximity to that of the other. The cutting cylinders are rotated in synchronism so that the cutting edges execute a cutting stroke in unison, the length of the cutting stroke being in excess of the width of the elongate material to be cut. A mechanism is provided which limits feeding of elongate material to material having a width less than the length of the cutting stroke. The method provides for the feeding of elongate material through a pair of rotating cutting cylinders which define a cutting path longer than the width of the elongate material.

Abstract: An improved cutting device of the type having rotary vane knives, which cerate with stationary knives, for making patterned cuts in the edges of paper webs, particularly for the preparation of envelopes or envelope blanks, is provided. The device includes at least one cooperating knife pair, comprising one rotary knife and one stationary knife, disposed for cooperative engagement for making patterned cuts in the edges of paper webs moving therepast. The blades are made of materials differing from one another in hardness to an extent such that the softer knife can have material removed from it without damage to the latter, and at least one of the knives of the cooperating knife pair, is mounted for feeding movement toward its associated cooperating knife, while the cutting device is operated.

Abstract: This cutting apparatus includes a frame structure supporting a cutting roller and a counter pressure roller arranged at an angle relative to the feed advance direction of sheet material to be cut. Drive means are provided for the cutting roller and for the counter pressure roller in the form of a common drive chain positively interconnecting the rollers with a drive motor through an instantaneously operable clutch, such as an electro-magnetic or pneumatic clutch. A brake is provided between the cutting roller and the frame structure, whereby the control of the clutch and of the brake is such that engagement of the positive drive through the clutch disengages the brake and vice-versa.

Abstract: An apparatus designed to facilitate the processing of uncured rubber or like raw material, which is normally produced, stored and shipped in sheet form but which is to be subjected to a continuous and uniform strip feeding into an extruder, mill or like treating means, is disclosed. The apparatus includes cutting means for forming in a sheet of such material a plurality of slits extending across the sheet and spaced from each other longitudinally of the sheet, the slits in an alternating sequence starting at the opposite side edges of the sheet and each terminating short of the respective other side edge of the sheet. In its preferred version, the cutting means is a rotary cutter having an even number of ogee-curved blades extending transversely to the sheet feed direction, the blades being alternatingly recessed at one end each, so that each cutting edge effectively starts at one end of the cutter and terminates somewhat short of the other end thereof.

Abstract: An apparatus for slicing a meat product in which the cutting edge of a rotating involute slicing blade is advanced in synchronism with the feed of the meat product during the cutting of a slice from the meat product. There is also means for either mounting an involute slicing blade or arranging the cutting edge of an involute slicing blade.

Abstract: Helical shear blade cutter cooperable with a straight-edge bed plate for trimming fibers projecting from an article, including a shaft, and a blade in the form of a helical band wound edgewise on and about the shaft, the helical blade having a free edge forming a cutting edge from which a cutting face of the blade extends inwardly toward the shaft, the cutting face being formed with a serration to limit lateral yielding of the fibers as the fibers are being sheared by the cutting edge and the straight edge of the bed plate, the serration including saw-like teeth, respectively, having a short and a long flank, the long flank, in a condition wherein the shaft is disposed parallel to the straight-edge bed plate, forming a first angle with respect to the straight edge of the bed plate that is equal to the difference between a second angle formed by the cutting face of a blade without serrations formed therein and the straight edge of the bed plate and a third angle formed by the long flank and the cutting face of