Abstract: The present disclosure is directed to a process and an apparatus for cutting a continuous rubber-covered belt in a process for building tyres for vehicle wheels, wherein the apparatus comprises a cutting group, in turn comprising: a knife formed by a first half-part and a second half-part and movable along a cutting direction that is tilted with respect to a supply direction of a rubber-covered belt placed beneath the knife. The process comprises: lifting a lifting element placed below the continuous rubber-covered belt and at the cutting zone, until a portion of rubber-covered belt is lifted, and lowering the single first-half part of the knife, making it slide with respect to the second half-part.

Abstract: A blade includes a blade body extending a blade length and having a blade depth. The blade also includes a flat, arranged at a forward face, extending a flat length, less than the blade length. The blade further includes at least one slant, arranged at the forward face, the at least one slant being coupled to the flat and positioned at a slant angle, wherein the at least one slant includes a cutting edge.

Abstract: A dunnage system may include a converting station including a converter configured for pulling in a stream of sheet material and converting the material into dunnage, and an inlet guide having an inlet surface that is coiled such that first and second ends of the inlet surface are discontinuous with each other to define a gap therebetween, the inlet surface configured to channel the sheet material into the converter. A cutter for a dunnage system may include a blade with first and second phases of serrations that are coextensive over at least a portion of the blade, the first phase providing cutting serrations for cutting the dunnage, and the second phase comprising ledges for focusing the cutting and preventing or reducing bunching of the dunnage towards a side of the blade. A method of converting dunnage may also be provided.

Abstract: An apparatus for cutting a sheet stack is provided. The sheet stack is composed of a plurality of sheets. The apparatus includes a cutting blade having a plate form and having a cutting edge at one side extending along a cutting width direction. The cutting blade has at the one side: a plurality of projecting blade portions having ridge lines forming edge lines capable of thrusting and sawing cutting, the projecting blade portions projecting in a cutting direction; and a straight bottom portion between adjacent projecting blade portions. Cutting of the sheet stack is performed by applying a load to the cutting blade in the cutting direction, and by reciprocating the cutting blade along the cutting width direction.

Abstract: A multiple rotary knife for longitudinal splitting of webs, includes a generally cylindrical annular body bearing a plurality of circumferential blades spaced apart. The circumferential blades are formed by continuous hard-metal rings mechanically fixed axially to the annular body.

Abstract: A machine is provided for creating perforated corrugated board, wherein the machine includes: a) at least one apparatus configured to perforate an “ACP” corrugated board after a corrugated board exits the corrugators as part of a continuous process, so that the perforations are spread over at least a portion of the corrugated board.

Abstract: A container puncturing device for efficiently and safely emptying the contents of a container into a storage tank or other structure. The container puncturing device generally includes a cross bar having a pair of tank attachment assemblies, a pair of bucket attachment assemblies and a puncturing member secured thereto. The bucket attachment assemblies are adapted to allow the present invention to be lifted and moved by a loader bucket such as one attached to a skid steer loader. The tank attachment assemblies are utilized to secure the present invention to the upper end of a tank. When a container is lowered onto the puncturing member, any particulate materials stored therein will be dispensed into the tank through the punctured opening. The present invention may then be lifted off and away from the tank through use of the bucket attachment assemblies and a loader bucket.

Abstract: An apparatus for creating perforations in wrapping film uses a component that contains a plurality of needle points (or other piercing features) formed along a free-wheeling support bar. The bar is positioned to contact the wrapping film while it is being unrolled and is in a ‘tensioned’ state (in some embodiments, immediately prior to contacting the element to be wrapped). The free-wheeling perforation apparatus contacts a mechanized (driven) film roller such that the exposed needle points rotate against the driven roller and make the perforations in the film as it travels over the film roller. As long as the film roller is formed of a pliable material, the needles will pierce the film and create the desired perforations. The size and placement of needles can be adjusted to provide the required pattern of perforations, as well as dictate the size of the actual perforations.

Abstract: Methods and apparatus are provided for activating a volatile dispensing device. The apparatus includes a puncturing mechanism formed between a first portion and a second portion of an activation arm and the puncturing mechanism being shaped to move laterally to puncture a volatile container as a compressive load is applied to the activation arm through the first and second portions.

Abstract: A blade which is a part of a binding device forming a binding hole and a cut hole includes a main slit, first sub-slits and second sub-slits in a plurality of sheet bodies and binds the plurality of sheet bodies together by using a cut and raised piece cut and raised out of the binding hole and the cut hole, the blade includes a main blade for forming the main slit of the cut hole, first sub-blades for forming the first sub-slits of the cut hole bending to extend in one direction from opposite ends of the main slit, and second sub-blades for forming the second sub-slits of the cut hole bending to extend in an other direction from the opposite ends of the main slit.

Abstract: A blade which is a part of a binding device forms a binding hole and a cut hole and binds a plurality of sheet bodies together by using a cut and raised piece cut raised out of the binding hole and the cut hole, the blade includes a core, an outer covering including a sheet metal and covering an outside of the core, and a cutting edge including a curved portion having a curved arc shape in a bottom view and liner portions extending from both ends of the curved portion in the bottom view, the cutting edge being continuous in a U shape and formed at a tip end of the outer covering, the curved portion includes a blade tip end portion and an adjacent portion adjacent to the blade tip end portion.

Abstract: A device and a method are disclosed for manually perforating a sheet of aluminum foil. The device includes a first member having a first surface with a plurality of apertures formed therein and a first guide member extending upwardly above the first surface. The device also includes a second member having a lower surface with a plurality of projections extending downwardly therefrom. Each of the projections can be simultaneously inserted into one of the plurality of apertures. A second guide member is formed on the second member and cooperates with the first guide member to permit the second member to move vertically relative to the first member. A sheet of aluminum foil can be placed between the first and second members, when they are spaced apart from one another, and the sheet of aluminum foil can be perforated by pressing the second member against the first member.

Abstract: A method of creating perforations in wrapping film uses an apparatus that contains a plurality of needle points (or other piercing features) formed along a free-wheeling support bar. The bar is positioned to contact the film while it is being unrolled and is in a ‘tensioned ’ state (in some embodiments, immediately prior to contacting the element to be wrapped). In performing the method, the free-wheeling perforation apparatus contacts a mechanized film roller such that the exposed needle points rotate against the mechanized roller and make the perforations in the film as it travels over the film roller. As long as the film roller is formed of a pliable material, the needles will pierce the film and create the desired perforations. The size and placement of needles can be adjusted to provide the required pattern of perforations, as well as dictate the size of the actual perforations.

Abstract: Methods for producing slots in tube walls are described and illustrated, along with devices for producing slots in tube walls. In some cases, a first number of punches arranged in a row pierce through the tube wall and in so doing produce slots, followed by another number of punches piercing through the tube wall in such a way that the slots produced by the first number of punches alternate with respect to the slots produced by the second number of punches. Also, in some cases an internal support is used, whereby small slots are first produced in the tube wall while the internal support is within the tube. After the internal support is removed, the slots are widened to finished dimensions. The internal support can include upper and lower parts designed to engage one another in a sawtooth or undulating manner.

Abstract: A punching blade can form a cut-and-raised piece provided with a wide width portion in a distal-end region, a cutting blade is provided with a first blade having a window with which the cut-and-raised piece is engaged and forming a first slit and a second blade for forming a second slit extending in a direction of a punched hole from the midstream of the first slit. It is also configured such that an edge from the wide width portion of the cut-and-raised piece to the base end can be engaged with the second slit.

Abstract: The invention relates to a stiffening component (2) for monitoring the functionality of a structural adhesive layer (6) to be fabricated between the latter and another component (4). According to the invention, the area of the structural adhesive layer (6) incorporates a plurality of air openings and vacuum openings that intersperse the stiffening component (2) and structural adhesive layer (6), as well as a sensor block (28), and the air openings are interconnected by at least one air channel (32), and the vacuum openings by at least one vacuum channel (34), wherein the channels (32, 34) run in the sensor block (28), and at least one of the channels (32, 34) can be connected to an evaluator unit (38) to detect a failure of the structural adhesive layer (6).

Abstract: An apparatus for perforating a length of pierceable material which includes a first roller, the length of pierceable material being in engagement with and at least partially circumscribing said first roller; and a second roller disposed in close proximity to the first roller. The second roller, which is provided with a plurality of piercing members, is movable from a first position wherein the piercing members are spaced apart from the first roller to a second position wherein selected ones of the piercing members pierce the length of pierceable material. Uniquely, the first roller has a plurality of transversely spaced grooves that receive the extremities of the piercing members when the first roller is in the second position.

Abstract: A rotating perforation apparatus contains a plurality of needle points (or other piercing features) formed along a free-wheeling support bar, where the bar is positioned to contact the film while it is being unrolled and is in a ‘tensioned’ state (in some embodiments, immediately prior to contacting the element to be wrapped). In particular, the free-wheeling perforation apparatus contacts a mechanized film roller such that the exposed needle points will rotate against the mechanized roller and make the perforations in the film as it travels over the film roller. As long as the film roller is formed of a pliable material, the needles will pierce the film and create the desired perforations. The size and placement of needles can be adjusted to provide the required pattern of perforations, as well as dictate the size of the actual perforations.

Abstract: Methods and apparatuses for producing fiber-cement soffit building products. In one embodiment of the invention, an apparatus for producing fiber-cement soffits includes a punch assembly, a support assembly facing at least a portion of the punch assembly, and an actuator operatively coupled to at least one of the punch assembly or the support assembly. The punch assembly can include a punch plate and a plurality of punches coupled to the punch plate. Each punch can have a length and a first cross-sectional dimension generally normal to the length. The support assembly can have a support plate, and at least a portion of the support plate is juxtaposed to at least a portion of the punch plate. The support plate can include a plurality of holes arranged in a pattern so that each hole in the portion of the support plate juxtaposed to the punch plate is aligned with a corresponding punch on the punch plate.

Abstract: A machine utilized for producing and manufacturing a film, soft at touch, resilient and suitable at draining use. A film produced by such a machine, presents, at least, on one surface an essentially continuous pattern of micro-funnels three-dimensional (3D) directed in an essentially perpendicular way to the surface from which the micro-openings have origin. It presents also on the opposite surface a continuous pattern, composed by 3D macro-funnels directed in an essentially perpendicular way to the surface from which the macro-funnels have origin. The “micro-funnels” term, intend to describe a multitude of funnels non distinguishable by the human eye at a distance equal or higher than 450 mm. while the “macro funnels” term, intend to describe funnels clearly visible by the human eye at a distance higher than 450 mm.

Abstract: A piercing device, for capsules for preparing beverages, comprising a plate that can be associated with a capsule for infusions and at least one penetrator that protrudes at right angles from the plate toward the capsule and is provided with at least one external cutting edge for the penetration of at least part of the penetrator into the capsule as a consequence of the mutual approach of the plate and the capsule; passage duct is defined in the penetrator that terminates, at its ends, in a passage provided on the face of the plate that lies opposite the face provided with the penetrator, and at least one aperture provided in the part of the penetrator that can penetrate into the capsule for the passage of fluid from the face to the capsule or vice versa, the external cutting edge extending laterally to the penetrator along a helical profile.

Abstract: A device and a method are disclosed for manually perforating a sheet of aluminum foil. The device includes a first member having a first surface with a plurality of apertures formed therein and a first guide member extending upwardly above the first surface. The device also includes a second member having a lower surface with a plurality of projections extending downwardly therefrom. Each of the projections can be simultaneously inserted into one of the plurality of apertures. A second guide member is formed on the second member and cooperates with the first guide member to permit the second member to move vertically relative to the first member. A sheet of aluminum foil can be placed between the first and second members, when they are spaced apart from one another, and the sheet of aluminum foil can be perforated by pressing the second member against the first member.

Abstract: An apparatus and method for separating a web material are disclosed herein. The apparatus includes a bedroll and a chop off roll. The bedroll includes a bedroll blade and a bedroll web pin. The chop off roll includes a pin pad and a plurality of chop off roll blades. The bedroll web pin and the bedroll blade mesh with the pin pad and the chop off roll blades. The chop off roll blades are moved relative to the bedroll blade, stretching and separating the web material. The web pin perforates the web material and may completely or partially separate a portion of the web material. The web pin and the separated portion perforate the pin pad. The separated portion is stripped from the web pin as the pin passes out of the pin pad.

Abstract: An apparatus of making perforations along which a package can be smoothly ripped includes a housing and a driving mechanism. Below a top wall of the housing, a top plate operatively is coupled to the driving mechanism. A blade assembly holding plate is attached to the bottom side of the top plate. Below the perforating blade assembly holding plate, there is provided a pressure plate including a base layer and a rubber layer, so that the blade holding plate is interposed between the pressure plate and the top plate. The pressure plate is formed with a slit extending therethrough in its thickness direction. Below the pressure plate, a loading plate is formed with a slit extending therethrough in its thickness direction and on which a film sheet can be loaded. Below the loading plate, a base plate is fixed to a bottom wall of the housing.

Abstract: A metal shell machining apparatus includes a cutting tool and a pressing tool. The cutting tool has a main body, at least two blade bodies, at least two enlargement portions, and at least two blade heads. The main body is a hollow cylinder, the blade bodies are formed by extending downwards from lower end of the main body, and there are at least two intervals between the blade bodies. The enlargement portions are formed by extending downwards and outwards from lower ends of the blade bodies, the blade heads are formed by extending downwards and inwards from lower ends of the enlargement portions. The pressing tool is a hollow cylinder and encircles a periphery of the cutting tool. The lower end of the pressing tool abuts the enlargement portions of the cutting tool. The apparatus can easily form oblique grooves on a metal plate, reducing manufacture cost.

Abstract: The invention is a handheld device for puncturing oil filters and thus allowing more retained oil to drain from used filters. An oil filter has several internal chambers filled with oil which do not drain by gravity from the filter unless the sidewall of the filter is punches. The device of the invention punches the sidewall of the filters, and provides a rack for draining the oil filters.

Abstract: A hydraulically-operated ripper tool mounted as an attachment on a hydraulic arm of a carrier or excavator is used for demolition of large metal walled structures such as storage tanks in a very short time. The ripper tool has a sharp point for punching entry holes into the tank walls, so that no torch cutting of entry holes needs to be used, particularly where there might be volatile residues left in the tank. The ripper tool has a concave, sharp inner edge and is operated by the hydraulic arm in reciprocation so as to provide a shearing force to cut quickly through metal walls in “can-opener” fashion. The ripper tool facilitates making long vertical cuts into the tank wall from top to bottom, so that a series of vertical cuts can be made to weaken a side of the tank and allow the top of the tank structure to be brought down.

Abstract: A piercing device includes an outer tube rotatably supported on a first shaft and eccentrically arranged relative to a second shaft, so as to be driven for rotation. Piercing needles are arranged on the second shaft, spaced from each other in a circumferential direction, projecting radially outwards, rotatable about a second axis, and extendable and retractable relative to an outer surface via holes in the outer tube. A needle restraining member, rotatably supported on the second shaft, transmits torque to the piercing needles when driven for rotation. The first plurality of needles rotate in unison, as do the second plurality of needles and are fixedly connected to support members; thus, protecting the needles from unreasonable force and preventing undesirable enlargement of pinholes and deformation of the rubber sheet. Further, when the needles are advanced into the rubber sheet and retraced therefrom, enlargement of the rubber sheet pinholes can be prevented.

Abstract: A capsule, for example for brewing coffee, comprising a rotationally symmetrically formed capsule body having a side wall and having a base formed integrally therewith. The capsule is closed by a lid to form a sealed chamber for accommodating the substance contained in the capsule. The base and lid can be pierced in order that a liquid can be channelled through the capsule. The base is provided with an annular channel, of which the inner wall portion forms a stiffening zone. The base of the channel here forms a piercing zone which, as a result of the stiffening zone, can be pierced to better effect and without the capsule base as a whole being deformed.

Abstract: A device for the manufacture of an absorbent product including a rotatable slitting tool having an extent in a radial direction and an extent in an axial direction perpendicular to the radial direction, the slitting tool being divided in the axial direction into two lateral parts and lying between them a central part. The central part has a circular cross section in the radial direction, and the lateral parts include, in the axial direction, intermittent protuberances projecting from the central part. The protuberances are the same distance from the center of the slitting tool as the circular cross section. The central part between the protuberances, in the direction of curvature of the envelope surface, forms a plurality of cutting edges, each of which has a width which, at a given pressure, permits slitting of a layer of material intended for the absorbent product, and the protuberances form supporting surfaces between the cutting edges.

Abstract: A rotating perforation apparatus contains a plurality of needle points (or other piercing features) formed along a free-wheeling support bar, where the bar is positioned to contact the film while it is being unrolled and is in a ‘tensioned’ state (in some embodiments, immediately prior to contacting the element to be wrapped). In particular, the free-wheeling perforation apparatus contacts a mechanized film roller such that the exposed needle points will rotate against the mechanized roller and make the perforations in the film as it travels over the film roller. As long as the film roller is formed of a pliable material, the needles will pierce the film and create the desired perforations. The size and placement of needles can be adjusted to provide the required pattern of perforations, as well as dictate the size of the actual perforations.

Abstract: A modular/configurable rotary die and a rotary die cutter (4) incorporating the die for making a corrugated carton blank (2) are disclosed. The rotary die comprises a plurality of die components (6,7,8) each having at least one blade (43-48) thereon for at least one of scoring, creasing and cutting a corrugated sheet (13) to cooperatively form a corrugated carton blank. With reference to the three dimensions of a carton (1) to be erected from the corrugated carton blank, the die components include at least one length die component (6), at least one height die component (7) and at least one width die component (8). By replacing at least some of the die components with different sizes/types of die components different sizes/types of carton blanks can be produced without requiring the use of dedicated rotary dies for each size/type of carton blank.

Abstract: An apparatus and method for separating a web material are disclosed herein. The apparatus includes a bedroll and a chop off roll. The bedroll includes a bedroll blade and a bedroll web pin. The chop off roll includes a pin pad and a plurality of chop off roll blades. The bedroll web pin, and the bedroll blade, mesh with the pin pad and the chop off roll blades. The chop off roll blades are moved relative to the bedroll blade, stretching and separating the web material. The web pin perforates the web material and may completely or partially separate a portion of the web material. The web pin and the separated portion perforate the pin pad. The separated portion is stripped from the web pin as the pin passes out of the pin pad.

Abstract: The present invention relates to perforation device for the manufacture of a perforated nonwoven material, whereby a prebonded nonwoven with embossing points is guided to a nonwoven perforation device, needles of a needle roller engage into the prebonded nonwoven and perforate it, and the perforated nonwoven material then undergoes further processing. A ratio is set between the number of needles to the number of embossed points of between 0.15 and 0.25 and a ratio of hole size to embossed point size of between 0.15 and 0.25.

Abstract: A pinmat (12) for perforating a composite laminate sheet (20). The pinmat (12) includes a mat portion (22) and a series of pins (24) extending from the mat portion (22). Each pin (24) has a shank portion (30) extending from the mat portion (22) and a tip portion (32) extending from the shank portion (30). The tip portion (32)includes a base portion (34) extending from the shank portion (30), an accelerating portion (36) extending from the base portion (34), and a piercing portion (38) extending from the accelerating portion (36). The piercing portion (38) is utilized for penetrating the composite laminate sheet (20) within a substantially low range of applied pressure for forming a hole within the composite laminate sheet (20). Moreover, the accelerating portion (36) is utilized for penetrating the composite laminate sheet (20) at a substantially high speed for forcing the base portion (34) into the composite laminate sheet (20) within the substantially low range of applied pressure.

Abstract: A perforation apparatus particularly useful for creating perforations in a foam-in-bag cushion and methods of using such apparatus are provided. The perforation apparatus is comprised of a frame, a main shaft mounted in the frame so as to be rotatable about a central axis, at least one needle roller coupled to the main shaft such that rotation of the main shaft moves the needle roller through a predetermined arc of motion out of and into an operative position adjacent to and perforating a plastic film advancing past the needle roller, and an actuator coupled with the main shaft and operable to rotate the main shaft so as to move the needle roller. Optionally, the apparatus is further comprised of at least one backup roller. Methods of preparing and perforating a foam-in bag cushion using the perforating apparatus are also provided.

Abstract: In a perforating apparatus which has a holder to which a perforating blade can be fastened, the perforation is produced via the movement of a piston by the piston pressing against an air cushion, which in turn transmits this pressure to a perforating piston which presses the perforating blade downward. A positioning device which directly varies the position of the piston unit relative to the housing surface is provided for the zero setting of the piston.

Abstract: Mold apparatus for molded wood strand three-dimensionally carved articles of manufacture using at least one hole punch comprised of a base and a funnel shaped hole-defining portion having a funnel angle of 20 degrees or greater to vertical for producing molded holes at angles of 20 degrees or greater to vertical, to facilitate insertion of items such as a T nut within the molded hole in an assembly-line like fashion.

Abstract: A headspace gas sampling and venting method utilizes a vent port and a sampling port which are punched through the lid of a drum containing hazardous materials, such as transuranic waste. In accordance with the system, a punch having a hollow passage therethrough, which passage has a filter element therein is first inserted through the lid using a pneumatic gun. A second punch, similar to the first punch, but having a passage with a septa seal therein is thereafter inserted through the lid with the pneumatic gun. Headspace gas beneath the lid is then sampled with a needle inserted through the septa seal. Both the venting port and sampling port are configured with detachable punch points which pass through the lid and are then released from the venting and sampling ports so as to open ends of the passages therethrough for communication with the headspace.

Abstract: A method for separating a supply of material into distinct sections of material, while controlling the position and orientation of these distinct sections during further manipulation in a continuous process is disclosed. The method includes forming a line of weakness comprising perforations and scores extending substantially from the first edge to the second edge and applying a force substantially parallel to the length of the web sufficient to separate an individual sheet from the web at the line of weakness.

Abstract: A method for forming elastic ventilation cushion comprises the steps of arranging a plurality of needle seats at two banks, an upper bank and a lower bank, and a straight gap is formed between the upper bank and the lower bank, wherein one edge of each needle seat near the other bank is mounted with a plurality of slender needles, wherein each distal end of the needles is folded as a distal folded section; passing an elastic cushion through the gap; and moving the needle seats at the upper and lower banks so that the length of the gap is enlarged or reduced, thereby, the needles on the needle seats will pierce the elastic cushion and the distal folded section will tear surfaces of the elastic cushion to form a plurality of elastic ventilation slits on the elastic cushion. Moreover, the needle seats can be replaced by needle rollers.

Abstract: A device for the cross perforation of webs, preferably paper webs for producing sacks, comprises a rotatingly driven perforating blade and a grooved roller, both of which are mounted on a machine frame and between them passes the web to be perforated. To adjust the penetration depth of the teeth of the perforating blade into the ring grooves of the grooved roller, there is at least one adjusting device for changing the distance between the axes of rotation of the perforating blade and the grooved roller.

Abstract: A perforator device for ribbons of paper in re-reeling machines is applied to a re-reeling machine (10) which mounts a roller (11) that turns and carries a plurality of smooth perforating blades (13) mounted on helical seats, and a counter-roller (12) which carries at least one toothed counterblade (14), where on the rotating roller (11) there act means for causing its translation with respect to its own fixed supports (17, 18) and elastic means for its return into position.

Abstract: An apparatus (1) for perforating a packing film (6), provided with a rotating cutter (2) and with a fixed cutter (3), respectively fitted with related single blades (4, 5), between which the packing film (6) advances proceeding along an interposed plane of lay (7), comprises blade-holding supports (8, 9) removable together with the respective blade (4, 5) for the quick replacement of the blades (4, 5) from the work area.

Abstract: A perforation device for making roll of plastic bag with an opening and a perforation line on each bag, comprising a cutting unit, an anvil unit and a expanding board, wherein, the cutting unit involves a main unit whereto are fitted with a toothed blade and a specified number of compressing blocks, the expanding board serving to expanding the material bag, the toothed blade on the cutting unit serving to cut and punch a surface of the material bag, making a roll of plastic bags each having an opening on one side, thereby fully automated packaging can be achieved by installing the present invention on an automatic weighing and packaging machine or a in conveyor packaging line for convenient packaging process, to reduce labor cost and enhance packaging efficiency.

Abstract: A perforation forming apparatus for a web fed paper processor generally comprising a perforator cylinder and an anvil cylinder. The rotatable perforator has at least a blade protruding radially from the cylinder. The rotatable anvil cylinder is adjacent the perforator cylinder and is contiguously engageable therewith. One of the perforator cylinder and the anvil cylinder is supported by eccentric bearing assemblies, comprising fluid cooled bearings eccentrically mounted in bearing housings and therefore adapted for rotation such that the eccentrically mounted cylinder can be pivotally displaced between a first and second position. Whereby pivoting to the second position during operation temporarily suspends perforation of the paper web, and returning to the first position during operation resumes perforation of the paper web.

Abstract: A paint can channel perforating apparatus includes a perforating member, a stiffening brace and a plurality of perforating bits. The perforating bits are arranged normal to the plane defined by the perforating member. A protective housing may be adapted to enclose the perforating member and the rim of a paint can. The protective housing includes at least one cross member arranged parallel to the stiffening brace and a plurality of guides sized to accept and direct the stiffening brace linearly. A shaft may be fixedly attached to the stiffening brace and slideable relative to an orifice defined within one of at least one of the cross members. Further a spring may be positioned around the shaft and between a handle and the cross member to return the perforating bits to a rest position after the channel has been pierced by the perforating bits.

Abstract: A machine for marking skins or other articles in sheet form by perforation, comprising: a support structure for m rows each formed from n vertical punches, m and n being whole numbers with m≧1 and n≧2, the upper ends of the punches being inserted into holes of a corresponding plate elastically supported on the support structure, each lower end of the vertical punches of each row interacting with a corresponding wedge element of a plurality of n.

Abstract: The invention relates to a method of manufacturing perforating tools, as well as perforating tools manufactured according to the method. The tool is manufactured in that a number of blades (2) are placed densely packed together in a bracket. The blades (2) are, along their one longitudinal side, serrated with a large number of teeth (3). The serrated sides of the densely packed blades (2) form a serrated surface (5). The serrated surface (5) is processed such that the teeth (3) are removed from selected surfaces (8) of the serrated surface (5) and that the remaining teeth (3) form a perforation pattern (7).

Abstract: The invention is a method and apparatus for making conduit for use in leaching systems, and the conduit produced thereby. The conduit has apertures created during its formation. The apertures are not cut from the material of the conduit. The material that is perforated is “rolled”, and made a part of the inner surface of the conduit. Included is at least one perforator that is actuatable. The conduit-forming material being perforated (typically a plastic-type material) is semi-molten, as during formation of the conduit, or after formation of the conduit by heating the perforator, thereby causing the conduit-forming material to be rolled rather than cut in creating a perforation. The apparatus has at least one actuatable perforator or at least one multi-tipped sequentially actuatable perforator located in at least one of a plurality of conduit-forming molds.