Abstract: A pipe cutting system includes an annular pipe encircling band member with parallel edge surfaces for encircling the pipe to be cut, releasable structure for securing the band member in pipe encircling configuration, and structure for spacing the edge surfaces of the band from the outer surface of the pipe. A carriage assembly includes two pairs of opposed spaced guide members for engaging opposed edges of the band and providing stable guidance of the carriage assembly around the pipe and structure for fixedly mounting a cutting tool on the carriage assembly. The cutting tool assembly is secured to the carriage assembly for movement relative to the pipe, preferably about a pivot axis parallel to the axis of the pipe, and includes a drive motor, a manual motor control, and a cutter disc coupled to the drive motor and adapted to be driven in rotation by the drive motor in response to the manual motor control.

Abstract: A fish aquarium having structure that produces an improved display for fish and other objects contained therein. The front wall is formed of a transparent material and it has a vertically oriented lower section, a vertically oriented upper section and and angularly oriented central section that connects the upper and lower sections that are laterally offset a predetermined distance from each other. The angularly oriented central section along with the water in the aquarium produces an optical illusion that the material and objects supported in the bottom of the aquarium have a front to rear upwardly oriented appearance. A hermetically sealed elongated light housing is mounted inside the aquarium adjacent the intersection of its top wall and the upper section of its front wall. The florescent lamp in the light housing directs all of its light only in the downward and rearwardly direction which prevents the production of a glare off the water that normally strikes the eyes of a person peering into the aquarium.

Abstract: Hand operable apparatus for shearing thin-wall sleeve members to a precise, selected length without causing sidewall collapse, this apparatus comprising an elongate, generally cylindrical body having a partially hollow interior. An elongate support mandrel is mounted in a cantilever manner on the longitudinal centerline within the cylindrical body, with one end of the mandrel being supported adjacent one end of the generally cylindrical body. The other end of the mandrel is free and of a diameter such that the end of a thin-walled sleeve member to be cut to length can be closely received thereon. A cutoff device is operatively mounted on the generally cylindrical body adjacent the free end of the mandrel, which cutoff device can be brought forcefully into contact with the sleeve member at a selected location. The user can then accomplish shearing of the sleeve member by causing relative rotation between the cylindrical body and the sleeve member.

Abstract: A hand-holdable tube cutting device includes a tube clamping unit that opens and closes to hold a tube being cut in position. The clamping unit includes a driven bevel gear that moves in a race. The bevel gear is driven by a driver bevel gear that is connected to a motor. A sanding unit is mounted on the driven bevel gear and a cutting oil dispensing system is included. The entire device can be operated using one hand via a trigger mechanism whereby a plurality of functions can be effected.

Abstract: An automatic feed system for a tube cutter is disclosed which automatically feeds a cutting tool into a tube and also automatically resets the cutting tool to its initial position once the tube has been cut. The automatic feed system has a cam element rotatably mounted in a cutting head defining a cam surface eccentric with respect to the axis of rotation of the cam element. A cam follower is formed on a cutting arm which is pivotally attached to the cutting head and has a cutting wheel attached thereto. The eccentric cam surface includes a substantially flat surface portion which lies in a plane extending substantially parallel to the axis of rotation of the cam element which, when contacted by the cam follower, allows the pivot arm to assume an initial, retracted position. As the cam element rotates, the eccentric cam surface and the cam follower urge the cutting wheel into the tube wall.

Abstract: A pipe cutter is formed as a cylinder with a longitudinal entry slot into which a pipe can be introduced to rest on rollers 101, 102 by pushing back cutter wheel 110 against a weak biasing spring until it snaps into cutting position. As the cylinder is thereafter manually turned around the pipe, cutter wheel 110 rotates by friction. Its shaft 111 rolls in arcuate slots in yokes 106, and approaches the pipe, so that the cutting edge of wheel 110 enters and severs the pipe. Cutting pressure is exerted by yokes 106 pivoting at 105 outwards so that nodules 106a tend to lift spring-casing 107, secured only at 108, 109 and encounter its prounced inwardly biassing force.

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: Tool for cutting of plastic tubes comprises an arm portion (1) and at the end of the arm portion a first jaw (2) and a second jaw (3) forming an opening (4) therebetween for insertion of a plastic tube (10) into the opening. The tube is arranged to be cut by a rotational movement (A) of the tool and the tube relative to each other and for accomplishing this, the first jaw (2) is provided with a circular cutting blade (6) and the second jaw (3) is provided with several support areas (9a, 9b, 9c, 9d) for accomodating of tubes of diferent sizes, the areas having each an arcuate surface. The support areas are arranged, as seen in the insertion direction (B), one after the other so that of two successive areas (9a, 9b), the area (9a) further back is adapted to hold a tube of smaller size than the area (9b) in front of it.

Abstract: The invention relates to an on-site pipe-cutter assembly which is intended for manual sectioning of rigid, large-diameter pipes located in narrow trenches. The pipe-cutter assembly includes two yokes (1,2) which are connected at their associated ends by tie bars (3) and nuts (4), the yokes including cutter wheels (5) and ratchet sectors (9) arranged at the periphery of the yokes (1,2), the ratchet sectors being concentric with the cutter wheels (5) and a lever (12) having with a forked end which is equipped with two pawls, the pawls making it possible to obtain changes in the angular position of the lever by 10.degree. to 15.degree. or by a multiple of this angle.

Abstract: A cutter system for pipe casings and the like, including a generally "C" shaped cutter assembly body having an always open side entry and exit area leading into the centrally located cutter area with an annular trackway extending an exemplary 290.degree. about the operative center of the cutter system. A cutter sub-assembly is carried on the trackway for back and forth movement of an exemplary 110.degree. in each direction with the sub-assembly carrying two, directly opposed rotating cutter blades which cut the pipe casing as the sub-assembly is moved to and from on the trackway. The two blades travel in each direction a minimum of one-half their arcuate spacing difference and preferrably less than their arcuate spacing difference, producing a full 360.degree. cut. The cutters are radially moved in and out by a reciprocating yoke assembly. The cutter body assembly is pivotally mounted onto a telescoping boom attached to for example a work vehicle.

Abstract: A travelling pipe cutter for cutting of pipe having a frame defined by a pair of spaced, interconnected plates with guide rollers thereon for movably supporting said frame for travel around a pipe, a gear box positioned between said frame plates and having a feed drive shaft extending from opposite sides thereof and through said adjacent frame plates, chain means extended around the pipe and drivingly connected to drive sprockets at opposite ends of said feed drive shaft, a cutter drive shaft extending from the gear box and through a curved slot in one frame plate and in spaced parallel relation with the feed drive shaft, the gear box being rotatable about the axis of the feed drive shaft relative to the frame to adjust the distance of the cutter drive shaft from the pipe, drive mechanism for rotating the drive shafts including motors mounted for movement with the gear box and gearing in the gear box which interconnects the motors to the drive shafts, and an adjustable connection between the frame and the gea

Abstract: A manual pipe cutter that comprises a cutting disk and a cutter-pressing jaw to press the cutting disk edgewise against a pipe to cut it, and is characterized by a pushbutton and gear arrangement for convenient operation and forceful pressing of the cutting disk edgewise against the pipe. This manual pipe cutter further comprises a body defining a cutting head portion and a handle portion, a cutting head rotatable in the cutting head portion of the body and cooperatively forming with it a pipe passage and an open mouth to position a pipe transversely into the pipe passage, a pawl and ratchet to rotate the cutting disk around the pipe, and means to release the movable jaw and return it to its outermost position.

Abstract: The present invention relates to a cutting tool which is utilized to sever a cylindrical body such as a cylindrical shroud of a factory-sealed vehicular suspension system of the type commonly referred to as a MacPherson strut suspension system. The tool is designed with a construction which permits the tool to sever the cylindrical shroud while the shroud remains attached to the vehicle. The tool comprises an upper control mechanism which is mechanically coupled to a lower cutting assembly by means of a pair of coaxial elongate tubes. The lower cutting assembly includes a plurality of circumferentially spaced, rotatable cutting wheels which are radially movable between a retracted position and an expanded position. The upper control mechanism determines the radial position of the cutting wheels by controlling the relative rotative position between the two elongate tubes.

Abstract: A self centering pipe cutting device having opposing cutting and roller support assemblies which are automatically advanced in concurrent, converging relationship as the cutting device is rotated about the pipe being cut. A ratchet and advancing gear adapt the device for use in restricted areas of movement and provides continuous advancement of the cutting member. A firm grip and concentric cutting path are maintained by track guides which operate to control the direction of cutter and roller assembly movement in a linear course during operation.

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: This invention relates to a cylinder cutting tool which is utilized to sever the upper end of a cylindrical housing of a factory-sealed vehicular suspension system of the type commonly referred to as a MacPherson strut suspension system. The tool includes a main body portion having a main arm, a second arm, and a clamp for supporting the tool on the piston rod of the original shock absorber for controlling the rotation of the tool. A rotatable cutting wheel assembly is slidably movable relative to the main support arm. The cutting wheel may be moved into and out of engagement with the cylinder by a suitable lead screw actuatable by rotating a hand grip mounted on the outer end of the main arm. The cutting line at which the cylinder is severed may be controlled by providing a plastic adapter element of a predetermined thickness for supporting the rotating tool on top of the cylinder.

Abstract: A machine for performing cutting, roll-grooving and like operations on pipe or tubing. A pneumatically operated head assembly provides for rapid tool advancement to a first predetermined position short of work engagement and hydraulically cushioned advancement therefrom to work engagement. A captive oil supply flow freely through poppet valves which close at first predetermined tool position, and at a controllable rate through a needle valve between the first and second tool positions. Automatic poppet reset occurs for rapid tool withdrawal, readying the apparatus for recycling.

Abstract: An elongated cylindrical mandrel holds a dummy electrical connector receptacle at one end, and slidably carries a concentric tubular carrier which is biased towards the dummy receptacle. A plurality of circumferentially spaced spindles are hinge mounted at their one end to the carrier for pivoting angularly with respect to the carrier axis and carry cutter wheels on their outboard ends. A slide closer concentrically surrounds the carrier, is axially displaceable, and bears cam surfaces contacting the spindles to cause the spindles to pivot inwardly towards the dummy receptacle. When the mandrel is projected, the receptacle receives in attachment the electrical connector plug bearing the tubular bayonet coupling ring to be severed. A stop limits the pivoting of the spindles and cutter wheels to permit the ring to be severed circumferentially without damage to the plug or its wiring.

Abstract: A universal tool includes a body with an opening adapted to interchangeably receive cassette-type work elements. Connected to the body is a handle containing clamping means for securing the work piece within the surfaces of the working elements of the cassette and a screw unit which preliminarily orients the working surfaces of the cassette elements in relation to the diameter or size of the work piece. The various cassettes can contain a screw driver, reamers, wrench, pipe flare, thread cutters and other functional working surfaces or jaws.

Abstract: A cutter for corrugated aluminum flexible pipe having a plurality of successive circumferential corrugations. The cutter frame is formed of two members hinged at one end and releasably closed at the other end to form a ring, a guide wheel or wheels ride the crest of one corrugation and a resiliently flanged wheel or wheel opposed to the first guide wheel or wheels ride the trough on either side. The blade is connected adjacent to one or between a pair of resiliently flanged wheels which permit the blade to be driven into the pipe. The C members are resiliently compressed toward each other by an adjustable spring controlling bolt which sets the pressure on the blade and allows for proper cutting even when the pipe varies in diameter. A handle recess or recesses on the ring receives a handle to rotate the ring for cutting.

Abstract: A cutter for a helically corrugated tube in which a pair of rings are connected by a blade carrier to form a track around the tube. Each of the rings comprises a pair of "C" members hingedly connected at one end and releasably connectable at the other end to form the ring. Each "C" member has a pair of rails supporting a circumferentially movable carrier having rollers at each end engaging the rails of the adjacent pair of rings. A holder on the carrier projects outwardly between the rails. A yoke in the holder carries the cutting blade; a compression spring in the holder drives the yoke and blade toward the tube. A threaded cup on the holder adjusts the compression spring and also provides a handle recess.