Abstract: A manually operable paper slitting device has upper and lower platens normally biased apart from one another. The upper platen has diagonally extending and spaced parallel slitting blades extending downwardly therefrom for cooperation with spaced complementary slots formed in the lower platen. A resilient and compressible paper hold down and stripper element extends downwardly from the upper platen in surrounding relationship to the spaced slitting blades. The spaced slitting blades have an inclined bottom cutting edge which first pierces and then permits slitting of the paper along the cooperating slots in the lower platen. The resilient and compressible paper hold down and stripper element holds the paper from moving during and after the slitting operation.

Abstract: An automatic cutting device for trimming off the parts (15) of an intermediate sheet (6) of plastics material which extend beyond a laminated pane (2) during manufacture. The device comprises a cutting head (1) provided with a blade (10) carried by a blade holder (23) which is heated by induction; means (11, 16) which hold the parts of the sheets of plastics material to be cut in a position at least substantially perpendicular to the plane containing the cutting edge of the blade (10); and means (9) causing relative displacement of the cutting head (1) along the edge of the pane (2).

Abstract: A circular saw blade in which tooth assemblies are pivotally mounted along the periphery of the disc spaced apart at equal angular distances. Each tooth assembly has a U-shaped tooth wedging member pivotally mounted on the disc. The tooth is secured between the disc and the wedging member. Pivotal movement of the tooth wedging member in one direction wedges the tooth between the disc and the tooth wedging member. Pivotal movement of the tooth wedging member in an opposite direction releases the tooth from the wedging action between the disc and the wedging member. A cam locking member is rotatably mounted on the disc adjacent the wedging member. Rotation of the cam locking member in one direction locks the tooth wedging member in the tooth wedging mode. Rotation of the cam locking member in an opposite direction unlocks the tooth wedging member to enable the tooth to be released from the wedging action between the disc and the tooth wedging member.

Abstract: A cutter in which a reciprocating knife is driven by an eccentric mechanism. The knife has a drive portion that flexes laterally in a plane perpendicular to the drive axis of the eccentric mechanism. The eccentric drive axis is offset along the perpendicular plane away from the axis on which the knife reciprocates. The offset of the eccentric drive axis allows the flexible drive portion to be kept straighter during the downstroke than in previous cutters. The increased straightening provides greater columnar strength and reduces deflection and stress of the drive portion during the time the knife is in compression. During the upstroke the knife is bent to a greater degree than in the previous cutters, but during this time the knife is in tension, the tension forces opposing rather than aiding the bending. The offset therefore provides for a longer service life for a blade of equal size or allows a reduction in size and mass of the knife to maintain an equivalent service life.

Abstract: A novel cutter, in particular for a slat, especially of a venetian blind is disclosed. This cutter comprises a pair of modified scissors with a respective knife blade partially deflected. A torsional spring is provided for creating a return action on the blades. The cutter further comprises a guide block having an adjustable width and a limit scale having an adjustable length.

Abstract: A retractable dust control hood for a rotary table saw includes a generally hollow box member which is supported for movement between a working position directly over the saw blade and a retracted position substantially above the saw blade to permit ease of handling workpieces with respect to the saw and a saw support table surface. The hood is supported from a member disposed above the table surface by parallelogram linkage and a counterbalance mechanism including a rod extending between one set of parallelogram link members and a second set of parallelogram link members. A coil spring is disposed around the rod and acts to move the parallelogram link members relative to each other to counterbalance the weight of the hood. The hood includes a transparent window and a lamp for illuminating the interior space of the hood for ease of viewing the workpiece during operation of the saw.

Abstract: An insert installation machine is provided which features a power operated reciprocating quill mounted on a frame and an insert guide tube fixed to a carriage. The carriage is supported on the frame for reciprocation, toward and away from a workpiece, with the guide tube coaxially aligned with the quill. A shuttle is mounted on the carriage for transferring an insert from a stacking tube in the carriage to the guide tube in timed relation and in response to quill movements.

Abstract: A tube cutting apparatus of the type in which jaws carried by relative reciprocal slides move into and out of clamping engagement with tubing, the clamped tubing is thereof notched at its upper periphery with a scarfing blade, and the notched tubing is thereafter severed with a guillotine blade. The scarfing blade and the guillotine blade each are secured to their respective holders by a cam pin which coacts with a cam surface to bring an eccentric portion of the cam pin into wedging coaction with the blade in response to rotation of the pin and firmly and wedgingly secure the blade to its respective holder. The blade may be removed from the respective holder by simply rotating the cam pin a fraction of a revolution and then withdrawing the blade. A new or reground blade is replaced in the respective holder by simple insertion into the holder and rotation of the cam pin a fraction of a revolution in the opposite direction.

Abstract: An apparatus comprising a movable frame reciprocatingly movable longitudinally of a tubular knitted fabric, a fixed press bed member spaced apart from the frame in the direction of transport of the fabric, at least one pair of upper and lower fabric feed rollers mounted on the frame and stoppably drivable in the transport direction, a tenter core member reciprocatingly movable with the frame for tentering the fabric as fitted therearound and having one end held by the feed rollers and the other end extending toward the press bed member, and a holding member for releasably pressing the fabric as tentered by the core member against the press bed member. The holding member is provided on the fabric facing side thereof with the cutter blade of a press cutter and elastic pieces.

Abstract: Apparatus for adjusting the knives of a pouch form, fill, seal machine. The knives are to cut pouches from a web. The knives are mounted in a generally cylindrical cage for radial sliding movement with respect to the cage. An axially movable cone inside the cage has slots in its conical surface that receive the inner ends of the knives. A screw is provided to move the cone axially to change the radial position of the knives.

Abstract: A vertical edger for cutting parallel horizontal kerfs in a log. The edger includes a first horizontal cutting blade; a second horizontal cutting blade; drive structure coupled to the horizontal cutting blades for rotatably driving the horizontal cutting blades; a first vertical column; a second vertical column spaced from the first vertical column; slide structure for attaching the first horizontal cutting blade to the vertical columns and for allowing the first horizontal cutting blade to move vertically along the vertical columns; the side structure including a first sleeve member slidably attached to the first vertical column, a second sleeve member slidably attached to the second vertical column, and a connector extending between the first and second sleeve members; and structure coupled to the slide structure for causing the slide structure to move vertically along the vertical columns and for causing the first horizontal cutting blade to move vertically along the vertical columns.

Abstract: The invention provides an automatic vertical glass cutting machine, including a cutting-wheel holder carriage which is movable vertically over a predetermined height of a vertical rap under the action of an actuator of the pneumatic kind, the cutting-wheel holder being fixed to the carriage by means of a rocker arm movable with respect to the body of the carriage which has a mechanism for locking said rocker against the carriage controlled by a fixed cam.

Abstract: A strip cutter for cutting elongated, uniform strips of material includes a holder having members defining a U-shaped channel, a hollow body having end and side walls defining a chamber, and a plurality of parallel spacers and blades loosely mounted in the body chamber. The body is removably received in the holder channel with two of the holder flat members extending at least partially over the body top and bottom body ends. The blades and spacers are retained in the chamber by at least one of the holder flat members.

Abstract: Mechanism for controlling the rate of travel of a saw as the saw operates and travels upon a radial arm. A housing contains fluid and an axially movable piston and piston rod. A wheel is operably joined to the piston rod and is connected to the piston rod so that the piston rod moves axially as the wheel rotates. A cable is wound upon the wheel and extends from the wheel and is connected to the saw. As the saw is moved upon the radial arm the cable rotates the wheel, and the wheel forces axial movement of the piston rod and the piston. Movement of the piston forces movement of fluid within the housing. The pressure of the fluid controls the rate of axial movement of the piston and the piston rod and controls the rate of rotary movement of the wheel. Thus, the rate of travel of the cable and the rate of travel of the saw are controlled by the rate at which the piston travels as the piston moves fluid within the housing.

Abstract: A mat cutting machine utilizes a trolley which runs smoothly and accurately along a shaft mounted upon the clamping bar assembly. Means is provided for precisely adjusting the relationship between the bevel cutting blade and the edge of the clamping bar, and the blades are held by magazines which permit ready interchangeability and facile adjustment of the amount of blade protrusion so as to enable the cutting depth to be altered with considerable ease. The base of the machine includes means for accurately positioning the workpiece, and for readily controlling the travel of the trolley, to afford high volume production capability.

Abstract: An initiating device which imparts stored potential energy to the driver and cutter in an internal organ stapler. Also disclosed is an overriding device which prevent the use of such a device until the proper clamping of the jaws of the stapler with each other.

Abstract: A punch press has a ram assembly with a lower portion which is rotatable and reciprocatable about a vertical axis and, a die holder which is rotatable about the same axis. A gear mechanism is coupled between a drive motor and the lower portion of the ram assembly and the die holder to effect simultaneous rotation thereof, which effects reorientation of the tooling relative to the X and Y axes of the punch press. In this fashion, rotation of the tooling will enable a single set of tooling to effect cutouts of different orientation in a workpiece relative to the X and Y axes, and movement of the sheet material along the X and Y axes together with such rotation of the tooling enables complex configurations to be nibbled or cutout with a limited number of sets of tools.

Abstract: A mat cutting machine utilizes a trolley which runs smoothly and accurately along a shaft mounted upon the clamping bar assembly. Means is provided for precisely adjusting the relationship between the bevel cutting blade and the edge of the clamping bar, and the blades are held by magazines which permit ready interchangeability and facile adjustment of the amount of blade protrusion so as to enable the cutting depth to be altered with considerable ease. The base of the machine includes means for accurately positioning the workpiece, and for readily controlling the travel of the trolley, to afford high volume production capability.

Abstract: The invention relates to a circular saw blade of the sandwich-type, i.e. a blade comprising two steel discs (2, 3) on the periphery of which the cutting elements (5) of the blade are attached. In order to improve the vibration and noise damping properties of such blades an intermediate layer (4) of an energy-absorbing and solderable material is introduced between the discs and the discs are interconnected by soldering, preferably by means of a plurality of spot-like soldered joints (11), with said intermediate layer (4) serving as the solder. (FIG. 2).

Abstract: A cutting tooth, viz. roughing tooth (2) and finishing tooth (3) made from cutting metal for a metal slitting saw, especially a circular disk saw, the geometry of said tooth being determined by the primary clearance angle (.alpha.), the rake angle (.gamma.), the radial clearance angle (.beta.), the tangential untoleranced dimension (s-e) and a tangential land (12) on the finishing tooth (3) with a negative relief angle (.epsilon.), in which for both the roughing tooth (2) and the finishing tooth (3) the cutting edge (7; 7', 7") is stabilized by a negative land (5; 5', 5"), and in which the angle (.chi.) between land and chip breaker face (4) is about 190.degree. to 240.degree., especially about 205.degree. to 230.degree..