Abstract: Provided is an optical fiber cutter for cutting an optical fiber, the optical fiber cutter including a cutter base, a slider, a blade member, a rotating body, and a rotation control mechanism that controls rotation of the blade member, in which the rotation control mechanism includes a main body rotatably provided in the cutter base, and a swinging portion that swings around a shaft provided in the cutter base in conjunction with rotation of the main body, and the swinging portion swings to a first position at which the swinging portion comes into contact with the rotating body to rotate the blade member by a predetermined angle when the slider reaches a predetermined position and a second position at which the swinging portion does not come into contact with the rotating body at the predetermined position of the slider.

Abstract: A blower assembly is configured to deliver a flow of breathable gas at a continuously positive pressure with respect to ambient air pressure to a patient interface in communication with an entrance to a patient's airways including at least an entrance of the patient's nares, while the patient is sleeping, to ameliorate sleep disordered breathing. The blower assembly includes a motor having a shaft that extends from opposite sides of the motor. The blower assembly also includes an impeller and a circuit board. The impeller is attached to the shaft on a first side of the motor and is structured to rotate in close proximity to a volute wall. The circuit board is configured to control power supplied to the motor and is configured to disable the motor when the impeller is closer than a predetermined distance from the volute wall.

Abstract: The present invention relates to a downhole machining system (1) for machining a casing (2) in a borehole in a well having a top. The downhole machining system comprises a first tool part (4) having an axial extension (5) and an anchoring section (6); a second tool part (7) adapted to rotate and move axially in relation to the first tool part, the second tool part comprising a machining bit (8) being movable in a direction radial in relation to the axial extension; a first actuator (10) comprising an electrical motor (11A) for axially moving the second tool part in relation to the first tool part; a second actuator (12) comprising an electrical motor (13) for rotating the second tool part in relation to the first tool part; and a third actuator (14) comprising an electrical motor (11b) for rotating the bit. At least one of the actuators comprises a gear (15) for changing a rotational speed of a rotor of the motor.

Abstract: Pipe machining apparatuses are provided. In one aspect, a pipe machining apparatus includes a tool support adapted to both part or completely cut a pipe into multiple portions, and machine a groove in an exterior surface of the pipe. In another aspect, the apparatus has a low radial clearance such that the tool support does not project a significant distance beyond a pipe. In a further aspect, a method of parting and machining a groove in a pipe with a single pipe machining apparatus is provided.

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: An apparatus for the production of caps comprises a first operating turntable device associated with a first operating arrangement and a further operating turntable device associated with a further operating arrangement, between said first operating turntable device and said further operating turntable device a transferring turntable device being interposed such as to transfer said caps between said first operating turntable device and said further operating to turntable device; a device for positioning a tool in relation to an object to be processed comprises a toolholder element suitable for bearing said tool, an adjustable member operationally associatable with said toolholder element and an abutting member suitable for pressing said toolholder element against said adjustable member.

Abstract: An apparatus for the production of caps comprises a first operating turntable device associated with a first operating arrangement and a further operating turntable device associated with a further operating arrangement, between said first operating turntable device and said further operating turntable device a transferring turntable device being interposed such as to transfer said caps between said first operating turntable device and said further operating turntable device; a device for positioning a tool in relation to an object to be processed comprises a toolholder element suitable for bearing said tool, an adjustable member operationally associatable with said toolholder element and an abutting member suitable for pressing said toolholder element against said adjustable member.

Abstract: The present invention relates to a clamp mechanism which prevents a tip body from being greatly cut out by a fitting hole to secure strength of a tip without complicating the shape of a head portion of a clamp member or a fitting hole of a tip body. There is provided a clamp mechanism of a tip for pressing the tip, in which a fitting hole is formed through a tip body, by the use of a clamp member having a shaft portion inserted into the fitting hole and a head portion with an outer diameter equal to or larger than that of the shaft portion and thus clamping the tip to a tip fitting seat. In the clamp member, a section, which is perpendicular to the central axis line, of the back surface of the head portion has a circle shape centered at the central axis line.

Abstract: A method and control system for forming workpiece surfaces with at least a portion being non-rotationally symmetric (i.e., axis asymmetric) is provided. In one aspect, a slow tool servo system is provided to fabricate a surface having at least an axis asymmetric portion, and optionally, a superimposed axis symmetric asphere or spherical portion. A workpiece is mounted on a spindle and a tool is mounted to a translatable tabletop surface. The z position of the contact point of the workpiece and working tool is determined as a function of the x position of the same contact point and as a function of the angle of rotation of the spindle about the spindle axis. By making the z position of the contact point a function of both the angle of spindle rotation and the x position, the lateral and longitudinal position of the working tool can be moved at designated spindle rotation angles to form a surface having both axis asymmetric and axis symmetric asphere or spherical portions.

Abstract: The invention is for a knife indexing apparatus for a non-rotating core cutting knife and a means for automatically indexing the knife during core cutting operations. The apparatus employs the discovery that by indexing the knife in the direction of rotation of the core, at least one additional fresh cutting edge can be presented to the work than would be the case if the knife were rotated in the direction opposite to the direction of rotation of the core to be cut.

Abstract: A contour shape of a desired shape of a workpiece at section along a predetermined axis is divided into machining units. Each of the machining units includes a plurality of inflection points including a machining start point and a machining end point. Machining data at least necessary for performing machining is set for each of the machining units. Arrival times at the inflection points are calculated based on the machining data, and a position of at least one of the workpiece and the tool is calculated for each of the inflection points. For each of the machining units, a rotation angle position of the workpiece corresponding to the arrival time is set as an accumulated count value.

Abstract: A tape printer comprising a tape receiving portion for receiving a supply of tape on which an image is to be printed; printing means for printing an image on said tape; cutting means for cutting at least partially said tape; and a cutter operation arrangement for manually operating said cutting means, said cutter operation arrangement comprising a first operating portion and a second operating portion, at least one of said first and second operating portions being movable toward the other, said operating portions being such that in use a user contacts both of said portions in order to move the at least one moveable portion towards the other.

Abstract: A machine tool comprises a support mounted for rotation about a machining axis, a first motor operable to rotate the support about the machining axis, a tool holder mounted on the support for rotation about a tool positioning axis which is parallel to and off-set from the machining axis, a second motor operable to rotate the tool holder about the tool positioning axis, and control means. For a constant diameter machining circle, the support and the tool holder are rotated about their respective axes at equal angular velocities so that they rotate as a unit. To adjust the diameter of the machining circle, one of the motors operates for a period at a different angular velocity to the other motor, thereby altering the position of the tool holder relative to the support about the tool positioning axis.

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: The present invention is directed to a knife assembly which is used to cut a rotating tube, such as a paper or plastic tube. The circular knife remains stationary during the cutting. After a number of cuts, the knife becomes dull. The present knife assembly rotates the circular blade or knife through a predetermined angle which results in an incremental movement of the circumference or cutting edge of the knife. A shaft has a first end which mounts the circular knife and a second end connected to a one-way clutch. An arm extends from the one-way clutch. Movement of the arm in a first direction rotates the shaft and moves the cutting surface of the knife. The arm is returned in an opposite direction. During this return arm movement the shaft and knife remain stationary. The assembly is then ready for the next cycle.

Abstract: A roller cutter module for use with a rotatable tool carrier head of a lathe machine tool includes multiple opposed cutter wheels for transversely cutting tubular workpieces, and wherein the wheels are rotatably mounted upon support arms that are pivotally attached to a support plate that is attached to the tool carrier head. An actuating system carried by the support plate pivots the support arms so as to cause the cutter wheels to be fed radially inwardly to sever a workpiece. The actuating system includes a linkage assembly which cooperates with the support plate to enable equalization of the cutting forces applied by the opposed cutter wheels to an out-of-round workpiece. The cutter wheels are mounted on the support arms so as to biased against spring elements in an axial direction to track a cutting centerline axially away from the support plate.

Abstract: A slitter machine for slitting a film sheet wound on a core in a roll to obtain desired widths of film sheet for laminating onto metallic substrates of semiconductor devices comprises a main frame, notches on the main frame for rotatably supporting the roll on the frame, a rotatable knife blade for slitting the roll sheet into a strip of desired width, a tiltable knife blade mounting plate on the frame for mounting the knife blade on the frame, guide tracks adjusting the lateral position of the knife blade to adjust the width of the strip being cut, an air cylinder for pressing the knife blade into the rolled sheet to cut the sheet into strips of the desired width, and a sensing roller for limiting the depth of the cut.

Abstract: A interior pipe cutter with depth of cutting guide and safety extension is described for cutting pipe from the inside out, while preventing the cutting blade from extending too far outside the pipe workpiece, so that it does not jump outside the pipe or do unwanted, potentially hazardous, cutting in the area outside the pipe. The cutter has a disk blade with a proximal and a distal face, the disk blade integrally formed with saw teeth extending radially outward from the disk circumference. The blade is integrally formed with a concentric dimple of diameter less than that of the disk blade, which functions as a depth of cutting guide. An elongated longitudinal shank extends axially through the center of the disk blade forming a distal shank segment and a proximal shank segment.

Abstract: A cutting tool is designed to cut through plastic pipe from within. This operation is required when a pipe is mounted in a floor or wall and must be cut off below the level of the floor for installation of plumbing fixtures. A rotary shaft with a rotary saw blade at one end is adapted for rotating in an electric drill at a second end. The shaft is journaled in a sleeve. A locking collar is slideably mounted on the sleeve. The collar is locked on the sleeve at a particular level so that when the underside of the collar engages the cut end of the exposed pipe, the blade will cut the wall at the desired depth. The collar is kept in contact with the pipe end as the sleeve is moved in a circle against the inside of the pipe so that the inside cut will be at a uniform depth.

Abstract: A method and machine for cutting precise sized mults from billets of a nickel based alloy, which involves rotating each billet by means of a chuck while the billet is supported on rollers coaxially in the chuck; providing a track parallel to the billet axis and a carrier movable along the track, on which carrier is disposed a rotatable saw movable toward and from the axis of the billet to effect cutting, the location of the saw cut being determined by a computer programmed to control a servo motor acting on a screw coupled to the carrier by nut means, the computer being provided not only with basic information as to the density and stated diameter of the billet, but with information as to variations in such diameter, detected by sensor means provided on the carrier in proximity with the saw, and transmitted to the computer.

Abstract: A trimming apparatus and method which may be used in conjunction with an automated tire assembly system which automatically trims the edges of the stabilizer ply member. The apparatus uses a rotary cutter angled with respect to the axis of the stabilizer ply member in order to produce a uniform cut.

Abstract: A spin trimming machine for trimming the necks of objects that have a dome molded above the trim line of the object. The machine is capable of positioning the object being trimmed in a predetermined orientation with respect to its starting orientation. This is carried out by the adjustment of the position and angle of the knife, which adjustment can be carried out while the trimming machine is operating. Preferably, the trimmed objects drop onto a conveyor belt which is porous and a vacuum manifold draws air through the conveyor belt at the point where the object is separated from the dome which holds it.

Abstract: A tube cutting apparatus for orbital shearing of tube stock in uniform lengths including a stationary die surrounding the tube stock placed adjacent an orbiting die of similar aperture, the orbiting die being rotatably mounted within an eccentric die holder which in turn is rotatably mounted on an axis offset from the stationary die with drive means for turning the die holder and causing the orbiting die to move in an orbiting path, and a two-section mandrel carried on an extendable ram which is removably insertable within the tube stock being cut, the first section being coaxially fixed to the ram while the second section has limited movement laterally relative to the first section, the second section having an inside diameter portion greater than the outside diameter of the ram and a elastic ring positioned between the second section and the ram to maintain the two sections in concentric alignment in the absence of outside forces.

Abstract: Apparatus for replacing thermal sleeves in pressurized-water nuclear power station circuits in a rapid, automatic manner producing minimal debris. A two-part frame is fixed to the outer wall of the sleeve coaxially therewith, each part of the frame carried one part of a two-part rotatable element, which in turn carries a support for a cross-cutting tool. The tool support is moved toward the axis of the frame but stopped just before the too breaks into the interior space of the sleeve.

Abstract: A pipe cutting machine having a pair of parallel, horizontal driven rollers for supporting and rotating the work to be circumferentially cut. A cutter head assembly includes a free rotating cutter wheel on a shaft generally parallel to the driven rollers. Coarse vertical positioning of the cutter head is effected by sliding it up or down over a generally vertical support column. Detenting of this vertical positioning is effected by a spring-loaded pin engaging a selected groove among a plurality of vertically spaced, horizontally extending grooves associated with the vertical column. Vernier advancement of the cutter into the work is accomplished by an eccentric and lever arrangement associated with the cutter head assembly.A gear box arrangement couples the torque of a driving motor, which may be permanently or removably attached, providing drive to the rollers and to a reamer. A hand drill is shown positioned to provide motive power.

Abstract: The invention relates to a process and apparatus for truncating tubes by means of a knife activated by a jack. The knife is mounted on a knife carrier pivotable on a base by one of the ends of a jack the other end of which is journalled on a lever similarly pivotable on the base and which rests in part on an elastic abutment adapted to pivot the lever towards the tube to be cut after having been compressed by the lever during a pivoting of the lever in a direction opposite to the tube and after an interruption of the extension of the jack, with a stop being provided to limit the extent of pivoting of the lever in the direction opposite of the tube to be cut.

Abstract: The invention relates to a truncation apparatus and a process of truncating tubes. The truncation apparatus includes a mandrel, a means for advancing the tube to be truncated along the mandrel, at least one knife positioned in proximity to the free end of the mandrel, a slide moveably mounted on the mandrel and an exterior abutment whose distance with respect to the knife is adjustable, in addition to at least one reference system which is longitudinally adjustable adjacent the mandrel and defines predetermined and adjustable lengths between the front end of slide and the knife, and is provided with means to stop the longitudinal displacement of the slide in a manner so as to define a selected length for the last truncated portion of the tube. A method for truncating tubes wherein a length of tube is positioned on a mandrel and cut into at least a first section including one of the end edges of the tube and a last section including the other end edge of the tube.

Abstract: The invention concerns a device for the automatic cutting of circular tubes of small, medium and large thickness, obtained by gluing together several strips of fibrous, cellulose, metallic, or plastic materials, and generally speaking any materials in strips, and made by using a spiralizer, a profiler or an extruder.This device for automatic cutting is characterized by the fact that it comprises a fixed mandrel (2) on which the circular tube (4) coming from the spiralizer, profiler or extruder turns freely and is driven without constraint either side of the cutting line by counter-rollers (8, 9) subject to a rotary movement synchronized with the speed of rotation of the circular tube (4), this fixed mandrel (2) cooperating for the cut with at least one cutting group provided with a knife milled with two bevelled edges which are very sharp (43) which is immobile in rotation at the moment of cutting.The invention concerns disposable packs.

Abstract: Cutting tools 12 are individually connected in common to rollers 2b supporting a rotationally driven tube T to be cut. The tools and rollers are paired mechanically such that the cutting edge of each tool and the tangent point G between the associated roller and the surface of the tube lie in the same radial plane passing through the longitudinal axis T--T of the tube. This arrangement makes it possible to maintain constant the penetration depth of the cutting tools into the surface of the tube even if the tube is oval or elliptical.

Abstract: This disclosure relates to improvements in a slitter device which cuts a roll-shaped long piece rotatably supported almost horizontally by a guide holder rod into round slices with the predetermined width using a rotary cutting blade which moves back and forth perpendicular to the long piece, and more particularly to the safety control of the slitter device which immediately stops the rotation of the cutting blade or retracts the cutting blade from the guide holder rod or uses other methods when the rotary cutting blade contacts the guide holder rod.

Abstract: A pipe cutter for cutting pipes of plastic material. The pipe cutter has a clamp (2) for clamping the pipe and the clamp carries a saddle (9) which is rotatable about the clamp. A radially adjustable cutter (16) is mounted on the saddle (9) so that as the saddle (9) is rotated the pipe is cut. The cutter 16 is spring-loaded to accommodate for deflection of the pipe during cutting.

Abstract: An end-trimming apparatus for roll-like products. The apparatus trims both ends of a roll comprising a sheet-like material wound up on a core, particularly, stretchable one such as plastics film, by cutting off the irregularity of both the ends, finishing them into flat faces. It comprises a conveying means for carrying rolls horizontally to a given location, a supporting means of a pair of chucks for supporting the roll at both the ends, while providing it with a rotation in the winding direction of the roll, and a cutting means provided close to the pair of chucks, including a pair of disk cutters arranged co-axially and having respectively separate shafts parallel with the shafts of the chucks, the disk cutters being capable of moving toward and away from each other and of reciprocating in the direction at right angle to said toward-and-away motion.

Abstract: A pipe cut off saw comprising a pipe cradle and a cutting means pivotally secured adjacent said pipe cradle such that the pivot point is aligned with the center line of the pipe so that the cutting means may be rotated about the pipe to cut off the end of the pipe. The pipe cradle has elevating apparatus to change the angle of the center line relative to the pivot point of the saw to permit miter cuts on the pipe.

Abstract: Metal strip is peeled from a rotating cylindrical workpiece whose longitudinal axis is greater than the desired strip width by feeding a first cutting tool into the peripheral surface of the workpiece as it rotates so as to form a groove in the surface which is spaced through one end of the workpiece by a distance equal to the desired strip width, feeding a second cutting tool continuously into the peripheral surface of the workpiece to produce a continuous metal strip of width equal to the distance between the workpiece end and the groove and collecting the peeled strip by winding it around a coiler.

Abstract: In trimming moils from plastic articles with a blade interposed in a path along which the articles are moving while engaged with fixed and moving guides, the improvement is provided of a retractable blade assembly movable between operative and inoperative positions by fluid motor power to permit passing articles through the path either while being trimmed or not, depending on up or downstream conditions. Means may also be included for shifting one of the guides, preferably the stationary one, into and retracted from its operative position on one side of such path.

Abstract: A tire truing machine that has a continuously orbiting band saw moving across a tool guide that has a plurality of adjustable guide members that can be shaped to the profile of the tire to be trued or contoured to a preexisting cam profile with the cumulative guide members defining an arcuately shaped recess or guide which positions the cutting edge of a band saw adjacent to the tread of a pneumatic tire in a precise profile control. The tire is chucked and rotated as the band saw operates on the tread surface or portions thereof to the profile set or adjusted.