Abstract: Cutting apparatus (15) for cutting-out stacks of sheet material such as fabric has a guide (55) for a reciprocating cutter (16), driven by a drive mechanism (18) arranged in a housing (19). The housing (19) is mounted on a carrier (8) extending above a cutting-out table (2). The cutter (16) is driven from an eccentric (38) arranged on a rotary member (36). A counterweight (41) is driven from a second eccentric (39) with an eccentricity (e) which is oppositely directed to the eccentricity (e) of the first eccentric (38) driving the cutter (16), to compensate for inertial forces generated by the mass of the cutter (16). The cutting apparatus (15) is free of turning moments acting substantially in a plane lying in the axis (36) of therotary member (32), by arranging the eccentrics (38, 39) in a turning plane (E.sub.1) on the two rotary members (32, 33), the members (32, 33) lying one behind the other with respect to the cutting direction (34) of the cutter (16) and rotating at the same speed as each other.

Abstract: In a device for cutting shielding of shielded cable, comprising an elongated cable carrier of U-shaped cross-section and an elongated saw carrier hinged to the cable carrier, cable is releasably locked into a lengthwise extending, sidewardly opening groove in the cable carrier by means of a lever pivoted to it and having plural lobes that project radially from the axis about which the lever swings, the lobes having rounded tip portions at different distances from that axis. As the lever is swung in a locking direction one of the lobes, depending upon cable diameter, cammingly engages a cable in the groove defined by the cable carrier and locks it to the cable carrier for cutting.

Abstract: An end-dogging log carriage system has two narrow, carriage sections, supportably guided on an elongated track, interconnected by a drive cable and a clamping cable. Both cables are wrapped around a spooling drum mounted on one of the carriage sections in such a way so that rotation of the spooling drum simultaneously changes the operative length of both clamping and drive cables thereby moving one carriage section with respect to the other to adjust the length of the log carriage and clamp a log therebetween. The tension in the cable system acting at the cable attachment points on each carriage section provides therein a preinduced countermoment in opposition to the dogging moment occurring when a log is dogged. The carriage sections are laterally biased against a single sidemounted guide rail spaced from the supporting track and discontinuous proximate the saws by a preloaded torque shaft mounted on each carriage section.

Abstract: A die cutting press for processing web material has a registration system which is operable to provide precise alignment of a shiftable die cutting unit along two axes during the time that the web material is advanced along a third axis toward the die unit, so that as soon as a defined area of the web reaches the die unit, the press can be immediately actuated to subject the web to the die cutting operation. In preferred forms of the invention, an indicator strip is printed on the length of the web and is detected by two spaced photo optical sensors movable with the die unit. A first control means, coupled to the sensors, selectively actuates in stepwise fashion either of two servomotors as may be necessary to bring the die unit into registration with defined web areas in a direction laterally of the web length (which may be defined as a Y axis) as well as a rotative orientation with respect to the defined web areas about an upright axis (which may be termed the .theta. axis).

Abstract: A cutter head for a meat cutter having several cutters fastened to securing disks by means of securing bolts includes at least one toothed area on the front of the securing disk into which a front toothing of a securing bolt can be positively locked. The cutters can be positively fastened and locked onto the securing disk, while the cutters can be adjusted in the radial direction. The staggering of the front toothing of the securing bolts by one-half the width of a tooth towards the center of the bolt makes it possible to adjust the cutters radially by one-half the width of the bolt. A counterbalance disk, fastened to the securing disk, is provided with bores to contain counterweights. The counterbalance disk has two shoulders for the lateral guidance of the cutter. Two cutters or a cutter and a filler disk can be positioned opposite each other in the same plane.

Abstract: A tool having a laterally slidable adjustment structure including a corresponding track and guide slidable thereon. The tool also includes a mechanism for releasably securing the guide on the track in a selected position of adjustment. Additionally, the tool is provided with a friction drive arrangement operatively associated with the guide and in engagement with the track.

Abstract: An improved rotary cutter for a web material is proposed. It has a pair of rolls adapted to rotate synchronously in opposite directions and an axially elongated knife secured to each roll to extend axially. A plurality of rolling bodies are arranged around each roll to bear the shock upon cutting. Different means for preventing the knives from hitting the rolling bodies are proposed. This arrangement prevents the rolls from warping due to shock upon cutting and allows the use of rolls having a smaller diameter.

Abstract: An impact power tool for delicate hand working operations is provided which is especially adapted for detailed engraving, carving, and delicate stone setting applications. The power tool preferably includes a hand-held impact device, a piston received within the body of the device and shiftable therein for delivering impact energy to the device, conduit for delivering and venting motive fluid from and to the hand-held device for shifting of the piston, and a valve coupling the directing and venting conduits to the device in alternative fashion at rapid, variable, cyclical rate. The impact tool may be operated by connection to a standard source of pressurized air. The tool is capable of providing a greater range of impact strokes per second than conventional hand-held controlled impact tools, and thereby provides expanded capability for extremely delicate and fine engraving, carving and stone setting work.

Abstract: A conveyor table is provided on a floor mounted support frame and a pair of tool guides are disposed horizontally and laterally above and below the conveyor table. Several readily removable tool and cutter assemblies, each having a freely rotatable, circular blade with teeth, are slidably mounted on the tool guides. Setscrews are provided on the tool and cutter assemblies to secure them on the tool guides in relatively opposing, vertically aligned pairs. Electrically powered drive units are disposed upstream and downstream of the tool and cutter assemblies to engage a sheet of wallboard, hold it against the conveyor table and move it between the opposing pairs of tool and cutter assemblies.

Abstract: To change reels (11, 12) of packaging material in or on packaging machines, a front region of a connecting sheet (13) is held ready in an exact relative position in a common conveyor track (18). When the end of a run-off sheet (10) is reached, an end piece of the latter is severed, so that the run-off end and the front end of the sheets of material (10, 13) can be conveyed (further) in an exact position to one another.

Abstract: Slicing device for breads, having a plurality of endless slicer bands which extend substantially parallel to each other and which are passed over drums. At least one of the drums is automatically adjustable and acts as a tensioning means for maintianing a substantially constant tension in the slicer bands. The adjustable drum is supported by cylinder-plunger assemblies one at each side of said drum. The cylinder-plunger assemblies are operable independently of each other. The supports of both drums are connected to each other by a bracket which is mounted to a stationary frame on one side of the respective drum. Both brackets extend in between both parts of the slicer bands.

Abstract: A method and an apparatus for splitting pieces of material (1) into smaller units for further handling, whereby the piece of material (1) is split-up into preferably sector formed units which are placed on a rotatable solid or ringformed plate (10) built up from several sector shaped carrier discs (11) mounted in a pulling and guiding chain, and whereby the rotatable plate (10) upon actuation from the chain is rotated and the carrier discs (11) successively are rotated to a position substantially parallely to each other and are displaced in such parallel position to a station for further handling.

Abstract: A board positioner operationally cooperates with a radial arm saw with a workpiece fence to measure a board to be cut by the saw. The positioner comprises a support structure, a slide bar supported by the structure and a slide mounted on the slide bar. The slide is selectively rotatable with respect to the bar and infinitely positionable therealong. The slide includes a bridge which allows the slide to arc the fence when in operational position to assist an operator in cutting a board from a workpiece.

Abstract: A flange of a structural shape is cut by a saw apparatus with a rotary metal saw which has a specified number of sawteeth. The structural steel shape lies on a table or roller bed, clamped onto a stationary piece of equipment with a vise, within range of the metal saw. The metal saw is operated at a specified number of r.p.m. and is driven toward the projected sawcut at a specified feed speed. The speed of the cut is determined by the number of r.p.m., the number of sawteeth and the radius of the metal saw. During the sawing process the structural flange is subjected to a forced elastic deflection and is impacted by the thus required restoring force and movements of the sawteeth. These movements are determined by the tooth succession time which, in turn, depends on the number of sawteeth and the number of r.p.m. The oscillation time of the oscillation of the structural flange, which was activated by the elastic deflection, is ascertained. The metal saw is then operated at a number of r.p.m.

Abstract: As a conditioning step for wrapping a plurality of articles in a low density polyethylene shrink film, perforations are formed in the shrink film for receiving machine elements utilized in performing the wrapping operation, the film being moved continuously between a pair of infeed rolls and a pair of outfeed rolls between which a rotatable mandrel is disposed and which includes perforating knives thereon for engaging the film while the film is moved continuously, the perforating knives being disposed on the opposite side of the web from a rotatable back up roll having cavities formed therein for receiving the ends of the perforating knives in such manner that the web is maintained under tension throughout the perforating process while the backup roll serves to prevent sidewise movement of the web due to web perforating action of the perforating knives.

Abstract: A friction supported stay comprising a track (10) secured vertically to a window frame with a slider (15) connected by link (18) to a strut (16) in turn connected to bar (24) which is also connected to slider (15) by a link (21). The bar, which is normally connected to the window has a nose member (35) which engages in a plastic, shaped cap member (14). The cap member (14) has internal cam surfaces (36) (37) which are asymmetrically disposed with respect to the central longitudinal axis of the track. One cam surface is at a greater angle to the axis than the other. The corresponding surfaces of the nose portion (35) of strut (24) are similarly inclined to each other and to the axis of strut (24).

Abstract: An automatic material loading, positioning and unloading system is disclosed in connection with a machine tool turret punch. The device includes a loader which receives a stack of sheets to be fed to the punch machine. The loader includes means for lifting the sheets one at a time from a storage area, means for transporting the sheets to a loading area of the punch worktable and means for unloading the sheets at the worktable area. The punch machine includes automatically controlled workpiece grippers which receive the sheets from the loader, properly position them with respect to the machine tool, move them in a predesired sequence through the machine and transport them to an unload area of the worktable. The unload area of the worktable is effective to discharge the punched sheets from the machine to an unload stacker. The unload stacker receives and stacks completed sheets.

Abstract: An apparatus for punching of an angular steel profile comprises a feed conveyor and a discharge conveyor for the angular steel profile, a rigid frame portion, two punch carriages and at least one punch carriage positioning motor for moving the punch carriages mounted on the frame portion and a servomechanism for positioning at least one of the punch carriages according to the tolerances, particularly the angular tolerances, of the angular steel profile to be worked. The servomechanism for positioning the punch carriage has a compressively loaded roller sensor contacting on a reference surface of the angular steel profile and a signaling member operated by the roller sensor. The feed conveyor, the discharge conveyor and the punches are equipped for feeding and working a vertically oriented V-shaped angular steel profile.

Abstract: This invention is concerned with a folded shipping form characterized in that a sheet form which is oblong, folded from the flap portion and narrower in width than that of a transparent film having a layer of pressure sensitive adhesive at the back surface, is inserted between the transparent film and a release paper affixed to the layer of pressure sensitive adhesive releasably, the upper portion of the above folded form is affixed to the layer of pressure sensitive adhesive of the transparent film to the folded portion and the folded portion of the form is provided so as to be able to draw out.

Abstract: A double duty paper punch for punching selected combinations of holes in up to fifty sheets of paper comprises a die-cast base with a steel die plate of angle cross section seated on the base with a downwardly projecting flange received in a recess in the base. An elongate punch holder, also a die casting, has a rear portion seated on a rear portion of the die plate and a forward portion spaced upwardly from the die plate to receive the paper to be punched. Rivets through aligned holes in the punch holder, die plate and base secure these parts together. The punch holder has a plurality of punch-receiving bores aligned with holes in the punch plate and base selectively to receive individual punches, each having a stem and a head with a spring acting between the head and the punch holder to hold the punch in raised portion.