Abstract: Pipe machining apparatuses and methods of operating are provided. In one aspect, a pipe machining apparatus includes an advancement mechanism coupled to a frame and adapted to move relative to the frame between a first position, in which the advancement mechanism is in a travel path of an advancement member and is adapted to be engaged by the advancement member to advance a tool, and a second position, in which the advancement mechanism is positioned out of the travel path of the advancement member and is not adapted to be engaged by the advancement member. In another aspect, a pipe machining apparatus includes multiple motors and pinion gears engaged with a gear rack of a tool carrier. In a further aspect, a pipe machining apparatus includes a race wiper. In yet another aspect, a pipe machining apparatus includes a race lubrication member.

Abstract: Pipe machining apparatuses, tool supports, and methods of operating pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier coupled to and movable relative to the frame, and a tool support coupled to and movable with the tool carrier relative to the frame. The tool support is adapted to support a tool and move the tool in a first direction toward a pipe at a first increment and move the tool in a second direction away from the pipe at a second increment. The second increment is larger than the first increment.

Abstract: A pipe cutting apparatus includes a machine base having a first machine table slidably secured for moving with a pipe during the extrusion thereof. The apparatus includes a rotary base table with a cutting arrangement attached at a periphery thereof such that the cutting arrangement orbits about the pipe during cutting thereof. The cutting arrangement includes a cutting tool supported on a pivoting support arm. The support arm includes a powered gear drive train for pivoting the support arm to accommodate different sizes of pipe and to allow cutting. The cutting apparatus has a second slidable table to allow precision cutting of multiple cuts of the pipe while the pipe remains clamped or held. The clamp arrangement is supported on and movable with the second slidable table. A controlled actuator is used to move and determine the relative position of the slidable tables.

Abstract: A pipe cutting apparatus includes a machine base having a first machine table slidably secured for moving with a pipe during the extrusion thereof. The apparatus includes a rotary base table with a cutting arrangement attached at a periphery thereof such that the cutting arrangement orbits about the pipe during cutting thereof. The cutting arrangement includes a cutting tool supported on a pivoting support arm. The support arm includes an independent powered gear drive train for pivoting the support arm to accommodate different sizes of pipe and to allow cutting. Preferably the cutting apparatus has a second slidable table to allow precision cutting of multiple cuts of the pipe while the pipe is clamped or held.

Abstract: A multiple blade centrifugal cutting machine having a planetary gear system for coordinating the motion of the blades so that the blades move into the work at the same speed to an equal depth to either sever the work element or strip away one or more layers of coating from the core of the work element.

Abstract: A method and apparatus for carrying out an advancing movement of a tool support rotating about a rotationally symmetric component, and an associated feed device, are described. The tool support is capable of being fed via a leadscrew, is supported on a component, and is driven in rotation as a whole by a stationarily mounted main motor via a main transmission mechanism connected firmly to a support of the tool support.

Abstract: A tool head for use in machine tools includes a base body, a tool shank adapted to be coupled to a machine spindle and protruding axially over the base body, at least one working slide adapted to be displaced essentially transversely with respect to a base body axis, and an adjusting motor disposed in the base body and acting upon the working slide in the direction of displacement by a transmission. In order to attain a compact, easily assembled, and safely operating construction, the transmission includes an output shaft aligned coaxially with respect to the axis of the base body and carrying a drive sprocket which meshes with a tooth rack on the side of the working slide. The adjusting motor also includes a driven shaft aligned with the output shaft on the transmission side.

Abstract: A cam mounting gear having a number of teeth smaller by one than the number of teeth of a main gear which is driven to rotate is disposed in parallel to the main gear, and a cam having a tapered face formed thereon such that the thickness thereof gradually increases along an inner periphery thereof is disposed on an inner wall of the cam mounting gear. A main holder having a cutter blade and a bearing which contacts with the cam is supported for rotation on a flat face portion of the main gear. As rotation of the main gear is transmitted to the cam mounting gear via a pinion, the bearing of the main holder is driven to roll on the tapered face of the cam, and thereupon, the cutter blade is displaced in a direction toward the center of the apparatus to cut a cutting object pipe located at a central location of the apparatus.

Abstract: A portable round tube cutter has a hollow central shaft through which passes a length of tubing to be cut. A transmission gear jacket is axially slidable along the shaft and rotates with the shaft. A tool chuck has a tubing cutter that is manually movable into the tubing to cut the tubing at a desired location. The tool is fed into and away from the tubing by a manually operable gear engaging the transmission gear jacket to cause axial movement of the jacket along the central shaft. Such axial movement rotates a transmission gear which, in turn, is engaged with a rack on the cutting tool mount to move the cutting tool either towards or away from the tubing. A clamping device is also included to clamp the length of tubing in the desired cutting position.

Abstract: An opener according to the invention comprises a vertical displacement mechanism for moving a capsule to a position in which the capsule is to be opened. The opener also includes a holding mechanism for holding the capsule, a cutting mechanism for cutting the capsule, and a casing. The cutting mechanism includes three roller cutters rotatably supported by a cutter holder by means of a pin. Each of the roller cutters is disposed so as to be rotated around the capsule and to be movable radially of the capsule for the purpose of cutting the capsule. The capsule, vertical displacement mechanism, holding mechanism and cutting mechanism are all contained in the casing and are actuated by a manipulator within the lead cell.

Abstract: A tube cutting tool is described in which a cutting head is rotatably mounted within a cutting body wherein both define "C" shaped slots to enable the cutting tool to be inserted laterally over a tube. A cutting wheel is attached to the cutting head such that rotation of the cutting head causes the wheel to pass around the periphery of the tube. A feed device is incorporated which biases the cutting wheel into contact with the tube until the tubing wall has been completely severed. A gear drive mechanism interconnects a power source with the cutting head to rotate it about the tube. A clamping system is also disclosed to clamp the device onto the tube during the cutting process.

Abstract: A portable pipe cutter primarily intended for concrete lined pipe includes a pair of annular tracks, which are mounted in fixed, parallel relationship to each other on a pipe, a pair of rectangular plates carrying rollers for movably mounting the plates on the tracks on opposite sides of a pipe to be cut, springs resiliently interconnecting the ends of the plates, a counterweight on one plate, a rotary cutter on the other plate with a blade outside of the plate, and a tension device for adjusting the tension on the blade so that actuation of the cutter causes the device to travel around the pipe while making a cut dependent on tension on the cutter.

Abstract: A tool for cutting tubular or solid cylindrical workpieces such as rigid polyvinyl chloride or like rigid resin pipes, soft metal pipes, etc. transversely thereof comprises a main body having a bearing portion including a pair of freely rotatable members, a vertically movable cutter arm pivoted to the main body and provided with a pair of rotary cutters opposed to the rotatable members in corresponding relation thereto, a cutter arm lifting assembly for moving the rotary cutters toward or away from the rotatable members, and an intermittent feeder mounted on the cutter arm for rotating the rotary cutters in the same direction. The workpiece is placed on the bearing portion of the main body and set in position substantially at right angles to the rotary cutters. After the edge of one of the rotary cutters has been brought into contact with the workpiece, the cutter arm lifting assembly is operated to hold the workpiece between the bearing portion and the rotary cutter.

Abstract: A tube cutoff device which includes a rotatable cutter head 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 for permitting a tube to be fed therethrough and positioned between the cutter and the support rollers. A cam is rotatably supported on the cutter head and cooperates with the cutter and rollers for displacing same radially inwardly into engagement with the tube which is to be cut. The cutter head and the cam are rotatably drivably connected to first and second power trains, respectively, which cause the cam and cutter head to normally rotate at the same rotational speed.