Abstract: This fiber chopper overcomes the disadvantages of the previous cutting rollers for chopping continuous filaments. The apparatus includes a means for feeding continuous fibers to a vibrating cutting blade. The vibrating blades engage the continuous fiber and chops them into discrete fiber lengths. A vibrating head vibrates the cutting blades through a vibrating table.

Abstract: A shape outlining device for a user to easily mark or cut a predetermined shape on a surface. The shape outlining device includes a post assembly with a lower end for resting on a surface and an upper free end. A spool base has a central shaft with an upper and lower flange. A cam with a profile surface for determining a shape to be outlined on the surface is removably mounted on the central shaft of the spool base. The cam has a central passage through which the central shaft is received with the cam resting on the upper flange of the post assembly. A spool grip is placed over the spool base for permitting hand gripping of the post assembly. The spool grip has an upper and lower flange, and a sleeve with a central aperture that receives the central shaft of the spool base. An arm assembly is removably and rotatably mounted on the post assembly by way of a central tube member that receives and rides on the flanges of the spool base and the spool grip.

Abstract: A shield slide mechanism for moving the cutting tool of a clamshell lathe is provided. By shielding the mechanism, metal chips created during the cutting process are precluded from jamming the mechanism and preventing the controlled movement of the cutting tool. The tool block slide assembly incorporates a cam lever actuated feed screw operating through a unidirectional roller clutch rather than a conventional star wheel to provide a more controlled movement of the tool block slide.

Abstract: This invention provides for a pin cutter which forms an annular groove about the periphery of the pin. The cutter includes a cutting wheel that is rotated relative to the pin and is gradually tightened to force the cutting wheel into the pin and thereby widen the groove. The cutting action is similar to a pipe cutter used by plumbers to cut a length of copper tubing. The operator can continue tightening the cutting wheel against the pin until the pin is severed. A portion of the pin extends through the housing of the cutter. Since the pin is gradually cut, less force is required to sever the pin. Further, less force is released by the pin as it is severed. The severed and free portion of the pin is retained within the housing in a controlled manner.

Abstract: A machining unit, in particular in a numerically controlled lathe, has a rotary head equipped with four pivoting tools for machining parts which pass axially through this head without rotating. Each tool is mounted on a respective pivoting support (6a-6d) provided with a helicoidal guiding surface (26a-26d) the axis of which coincides with the pivoting axis (7a-7d) of the support. The four tools are controlled by means of two concentric annular sockets (30, 42) controlled in translation. The inner socket (30) has two outer surfaces which rest against the guiding surfaces (26a, 26b) of two of the supports. The guiding surfaces are helixes of opposite pitch, and therefore one of the corresponding tools moves toward the part as the second tool moves away from it. The outer socket (42) controls the other two tools in the same manner.

Abstract: Cutter for tube or pipe, including a drive head, an elongated main body having one end carried in the head, and a cam element carried on the other end of the main body. The head, body, and element have aligned similar bores to receive a tube. The main body carries cutters which move radially inwardly of its bore to engage and cut the tube when the main body is rotated about the axis of its bore relative to the head and the cam element.

Abstract: The top seal parts of bottle-like containers made by blow-molding a flexible synthetic resin are cut off by nonrotatably supporting each container, pressing from one side a cutting edge of a cutter against a specific cutting line on the top part of the container, and rotating the cutter around the top part thereby to cut off the top seal part. This process can be carried out by an apparatus comprising a plurality of combinations of mechanisms, each combination comprising a fixing device for nonrotatably and fixedly supporting a container, a cutting head which can be fitted onto the top seal part of this container and can be driven in ascending, descending, and rotating movement, and cutting head drive.

Abstract: A tubing cutter (20) includes a rotary shaft member (22) having three hubs (28, 30, 32) extending therefrom to define three angularly spaced radial guideways (34, 36, 38) between the hubs. A radially slidable cutting wheel carrier (80) and two contact wheel carriers (110, 112) are slidable within the radial guideways. A cutter actuator (200) cooperates with the rotary shaft member to control the radial movement of the wheel carriers. The actuator includes a sleeve portion with three actuating arms (208, 210, 212) for registering in the outer portion of the guideways for engaging the wheel carriers. The surfaces of the actuating arms cooperating with the wheel carriers are designed to force the wheel carriers radially inwardly when the actuator arm is moved relative to the shaft member. A cutting wheel is mounted on the cutting wheel carrier for cutting a pipe positioned in the cutoff device as it is moved inwardly.

Abstract: A tube cutoff device which includes a rotatable cutter head assembly for radially slidably supporting a cutter and a pair of support rollers in circumferentially spaced relationship. A stationary tubular guide extends through the cutter head assembly for permitting a tube to be fed therethrough and positioned between the cutter and the support rollers. A cam assembly is rotatable with and axially slidably supported on the cutter head assembly. When the cam assembly is axially displaced, it cooperates with the cutter and rollers for displacing same radially inwardly into engagement with the tube which is to be cut. The cam assembly is axially activated by a nonrotatable actuator which is axially movable and coupled to the cam assembly. The actuator is coaxially aligned with the cutter head assembly and is positioned concentrically around the tubular guide.