Abstract: A machining assembly with a drive unit (10) detachably mountable to the feed module (30) and moveable along a guide track on a machine stand via the feed module. The feed module is provided with a feed gear wheel (33) configured for engagement with a cog track on the machine stand. An electric drive motor (12) for rotating a spindle (13) and an electric feed motor (16) for rotating the feed gear wheel are arranged in a housing (11) of the drive unit. The drive unit comprises a drive member, which is rotatable by the feed motor and which is operatively connectable to the feed gear wheel via a torque transmitting coupling mechanism (50) when the drive unit is mounted to the feed module so as to allow the feed gear wheel to be rotated under the effect of the feed motor when the drive unit is mounted to the feed module.

Abstract: A pipe fitting placement system includes a fitting holder including a bar defining a fitting bore proximate to a first end of the bar, the bar further defining a second end distal from the first end, the bar being elongated in a longitudinal direction extending from the first end to the second end; and a saddle coupled to the bar proximate to the second end of the bar, the saddle rotatable about a saddle pivot axis with respect to the bar; and a pipe fitting received within the fitting bore of the fitting holder.

Abstract: An evaporative cooling system includes an indirect cooling coil containing a cooling fluid to be circulated and a blower assembly configured to generate an inlet air stream through the indirect cooling coil. The cooling fluid in the indirect cooling coil is a slurry of water and phase change material.

Abstract: A motor hub system for shutter actuation includes a shaft sleeve including a base flange and an externally threaded collet extending axially from the base flange along a rotation axis. A flanged nut with internal threads is in threaded engagement with the collet, wherein the internal threads are in a threaded portion of the flanged nut that extends axially from a flange of the flanged nut. A washer is compressed axially between the base flange of the shaft sleeve and the flange of the flanged nut.

Abstract: An electronic device includes a body having a threaded portion configured to co-operate with a threaded portion of a duct in a sleeve in order to move the device into a final position when the device is turned. The electronic device also includes a hole punch configured to form a through orifice in a pipe while the device is being turned and to enable the device to be inserted into the final position. The electronic device further includes an electronic module configured to be in contact with a fluid passing through the pipe when the device is in the final position. In addition, the electronic device includes at least one electrical connection connected to the electronic module and passing through the body leading to a top face of the body. The body and the at least one electrical connection form a plug of the duct in the sleeve.

Abstract: A broaching machine includes a support structure, a pulling head for releasably coupling to an end of a broach, and an acme screw coupled to the pulling head for linearly moving the pulling head along a portion of the support structure. A gearbox assembly is supported by the support structure and is coupled to the acme screw for translating an applied rotational forced into linear motion of the acme screw and the pulling head. A first adapter plate is supported by the support structure for mating with a compatible second adapter plate coupled to a railroad rail. The first adapter plate includes an aperture allowing a broach coupled to the pulling head to linearly travel through a pilot hole formed through the railroad rail in response to the applied rotational force and responsive linear motion of the acme screw and the pulling head.

Abstract: A threaded connection design having a double ellipse in the thread root for reducing stress fatigue is illustrated in this disclosure. The root groove includes a first portion comprising a first elliptical surface being part of a first ellipse. The root groove further includes a second portion comprising a second elliptical surface, being part of a second ellipse, and the second elliptical surface being joined tangentially at a first end to the first elliptical surface at a junction point that defines the bottom of the root groove. The second elliptical surface is joined tangentially at a second end to the load flank.

Abstract: A method and apparatus for tapping into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle. The assembly includes a tapping tool connectable to the tubular via a saddle connection and an adjustable tapping clamp with adjustable support/locking feet, compression plate with view ports, and angularly adjustable hot tapping system, along with a drill/saw system.

Abstract: A portable power drill comprises a housing, a drilling implement carrying drive spindle, and two individually powered and controlled motors for rotating and axially feeding the drive spindle. The drive spindle is rotative and axially displaceable relative to the housing and connected to the drive and feed motors via angle gears including two bevel gears supported on the drive spindle. The feed via an axially locked but rotative nut piece and an external thread on the drive spindle, whereas the drive motor is drivingly connected to the drive spindle via longitudinal keyways on the drive spindle and mating splines in one of the bevel gears. The drive motor and the feed motor are electric motors controlled and monitored by a programmable control unit.

Abstract: A method and apparatus for angularly drilling during a tapping procedure into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle.

Abstract: A method and apparatus for tapping into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle. The assembly includes a tapping tool connectable to the tubular via a saddle connection and an adjustable tapping clamp with adjustable support/locking feet, compression plate with view ports, and angularly adjustable hot tapping system, along with a drill/saw system.

Abstract: A cutting device includes a support base, a first slide module, a second slide module slidably connected to the first slide module, and a cutting module. The support base includes a support surface and a slide portion on the support surface. The first slide module is slidably positioned on the slide portion. The sliding direction of the second slide module is perpendicular to the sliding direction of the first slide module. The cutting module includes a fixed frame fixed on the second slide module, a driving device fixed on the fixed frame, and a cutter connected to the driving device. The driving device drives the cutter to rotate around a central axis of the cutter and move up and down along the central axis. The central axis is perpendicular to the support surface. The cutter includes a hollow cylindrical blade. An end surface of the blade faces the support surface.

Abstract: A tight-space drilling product for drilling in a confined space between a workpiece and an opposite surface includes a drilling implement with a confined space configuration where the drilling implement contacts both the workpiece and the opposite surface.

Abstract: Spindle assemblies with inline direct drive feed are disclosed. In one embodiment, a manufacturing system includes a support structure configured to be positioned proximate a workpiece, a carriage moveably coupled to the support structure, and a head assembly coupled to the carriage. The head assembly includes a spindle assembly, comprising a feed unit and a spindle unit. The feed unit includes a feed motor coupled to a drive mechanism, the feed motor and the drive mechanism being disposed along a longitudinal axis of the spindle assembly. The spindle unit has an aft end operatively coupled to the drive mechanism of the feed unit, the spindle unit including a fluid-driven motor coupled to a tool collet chuck, the spindle unit being configured to translate along the longitudinal axis by actuation of the feed motor.

Abstract: A method and apparatus for tapping into a pressurized multiple strings of coaxially situated tubulars for wells and/or platforms which have overturned wherein the tapping occurs underwater via a diver or remotely operated vehicle. The assembly includes a tapping tool connectable to the tubular via a saddle connection and an adjustable tapping clamp with adjustable support/locking feet, compression plate with view ports, and angularly adjustable hot tapping system, along with a drill/saw system.

Abstract: The present invention provides a hot tap machine having independent speed drives for the center drill and the holesaw that can be remotely operated. The hot tap machine of the present invention also has improved vibratory damping and coupon stability and retention. During operation, the machine cartridge holding the machine internal assemblies of the hot tap machine of the present invention is, except for its controls and external support systems, entirely contained within its pressure containment housing which is sealingly attached to the hot tap fitting on the pipe. An advantage in the operation of the present invention is the independence of the center drilling operation and the pipe coupon cutting operation.

Abstract: An apparatus and method is provided for the highly accurate reaming of a hole in a work surface. A reaming device is positioned within a base unit and positioning bracket of the present apparatus in alignment with the hole to be reamed in the work surface. The reaming device is advanced through the work surface by means of a reamer driver assembly while being rotated by means of a drive motor or similar rotational means to produce a cutting action, resulting in a precise, highly accurate reaming.

Abstract: A fitting for connection to a pipe includes a sleeve, in which a body is axially displaced along a sleeve axis, whereby the body has a drill for drilling into the pipe and/or a valve body of a valve. The fitting also includes a branch sleeve, located in particular on the sleeve and to which a branch line can be connected. The fitting is easily constructed in such a way that safety requirements are reliably met and such that a connection to a branch line can be easily established if necessary. According to another aspect of the fitting, a locking device which includes an actuating element is located in the branch sleeve, in such a way that the locking device is actuated by means of the axially displaceable body in the sleeve.

Abstract: A device for tapping a conduit, which conducts a flowing fluid, comprises a housing, which has a principal part, a fixing part running flush with the principal part for fixing to the conduit and an outlet part for discharging fluid from the tapped conduit. A rotating cutting device is provided in the principal part, said device being displaceable from a retracted first position into an extended second position, in which a section of the wall is cut out of the conduit. A telescopic shaft, which is fixed on one side to the principal part and on the other side to the cutting device, is provided. The telescopic shaft has at least two segments that can be displaced in relation to each other in a sealed manner and is fixed to the principal part in a sealed manner. The telescopic shaft does not protrude beyond the principal part as a result of its axial extensibility or retractability, thus ensuring a compact construction and ease of use.

Abstract: Tapping fitting (1) suitable for application to a plastic pipe (P), comprising: a housing (5) including a hollow main section (6), the housing being attachable to a pipe (P); a cutter assembly (13) mountable within the hollow main section (6) and axially moveable therein into a cutting position wherein the cutting blade (14) engages the surface of a pipe (P) to which the fitting is attached; and a direct seal (23) between the housing (5) and the cutter assembly (13), wherein, in use, the seal (23) is maintained between the housing (5) and the cutter assembly (13) regardless of the axial position of the cutter assembly (13) within the housing (5).

Abstract: A cloth cutting device used to cut perfect circular pieces from a piece of cloth. The cloth cutting device is positioned over the cloth and utilized in incising a perfect circular piece from the cloth. The device has a base support assembly that maintains the cutting device in a stationary position on the cloth to be cut, a cutting blade enclosed in a housing assembly, a rotateable handle, and a shaft interconnected between the housing assembly and the handle. Rotation of the handle causes the shaft to rotate, effectuating downward movement of the blade onto and into the cloth.

Abstract: Apparatus for tapping a hole in a pipeline adapted to be attached to a support assembly having sealed communication with the exterior of a pipeline and having a tapping machine body with a boring bar rotatably supported therein with a circular cutter at the lower end thereof, a feed screw rotatably supported by the tapping machine body for axially positioning the boring bar, a hydraulically powered boring bar drive assembly within the tapping machine body driving the boring bar, a hydraulically powered feed screw drive assembly within the tapping machine body driving the feed screw and an auxiliary drive shaft affixed to rotate the feed screw drive assembly extending exteriorly of the tapping machine body and adapted to receive supplementary mechanical rotary energy for rotation of the feed screw so the boring bar can be retracted if hydraulic power is lost. A pressure compensation system permits the apparatus to be operated in a subsea environment.

Abstract: A tapping apparatus having a drilling device for producing an outlet on a medium-carrying pipeline, on which a tapping fitting is arranged, and having a drive and advance device for driving and advancing a drilling tool is proposed, a coupling and uncoupling mechanism being arranged for coupling and uncoupling the drive device to and from the advance device for the drilling tool. The tapping apparatus is of modular construction, can be dismantled into individual parts and is easy to operate.

Abstract: A tapping apparatus having a drilling device for producing an outlet on a medium-carrying pipeline, on which a tapping fitting is arranged, and having a drive and advance device for driving and advancing a drilling tool is proposed, a coupling and uncoupling mechanism being arranged for coupling and uncoupling the drive device to and from the advance device for the drilling tool. The tapping apparatus is of modular construction, can be dismantled into individual parts and is easy to operate.

Abstract: A differential positive feed mechanism that is coupled in-line or axially with a drill, reamer or cutter for use in limited access areas and feeds the tool into a workpiece when driven by an external rotary power source.

Abstract: A tool is provided for reaming a new bore in the transfer case. The tool has a mounting plate that attaches to the transfer case. A support shoulder projects down from the bottom of the mounting plate. A threaded sleeve is attached to the support shoulder. The threaded sleeve guides a threaded rod with a hex head at one end and a cutting bit at the other end. Once the mounting plate is attached to the transfer case, the cutting bit is aligned with the bore to be reamed in the transfer case. A mechanic can then attach a hex wrench to the hex head at one end of the threaded rod. The mechanic turns the wrench which causes the cutting bit to turn, reaming out a bore in the transfer case. A bushing installer is inserted into the newly reamed bore. Attaching wrenches to both ends of the bushing installer, the mechanic turns the wrenches until the bushing is completely installed in the newly reamed bore.

Abstract: A tool for tapping from a branch pipe into a main pipe to establish communication between the pipes. The tool has a bit for cutting a hole in the main pipe which is secured to an upstream end of a shaft for transmitting torque to the bit. The tool has a branch-engaging member engaged to the branch pipe adjacent to the downstream end of the branch pipe. The shaft has a threaded section engageable with a threaded section of the branch-engaging member so that as the shaft is rotated, the bit is driven along the longitudinal axis of the branch pipe toward the main pipe.

Abstract: A drill rig for drilling access holes in drill resistant materials, such as those used to construct safes or other secure containers. The drill rig includes a drill bit holding and advancing mechanism having enclosed threaded members for allowing incremental, even pressure to be applied during a drilling operation while preventing burrs and chips from becoming lodged within the threads. A sliding connection is provided between stationary frame structure of the rig and the drill bit holding and advancing mechanism. The connection includes a spring loaded, quick-release mechanism for allowing quick detachment of the drill bit holding and advancing mechanism from the frame structure at the end of a drilling operation or as needed to replace the drill bit.

Abstract: Improved, draw bar assisted, rotary hole sawing apparatus that provides the versatility and methods required whereby operator ingenuity can achieve a set up to accomplish the required hole sawing or similar type machine operation in a wide variety of positions, conditions and situations. The design provides for applying rotational force from either the cutter side or opposite side of the device, and can be applied by hand power or with power tools. Provision is made, with a backing plate, to facilitate sawing very thin materials and to increase stability. The setup can be arranged so that draw bar pressure can be applied from either end of the device. Provision is made so that compensating force can readily and constantly be applied to resist the side force which tilts the tool axis relative to the work piece as a result of the secondary force introduced by the ratchet type method of rotating the cutter.

Abstract: A tapping fitting for application to a pipe in order to tap a fluid conducted therethrough to an ancillary device includes a housing having a rotatable blade assembly threadedly received within the housing main section and including a cylindrical cutting blade at its inner end such that rotation of the blade assembly cuts a cylindrical slug from the pipe when attached thereto. The device further includes a hollow stem having an inner end secured to the rotatable blade assembly and an outer end for receiving a key to rotate the hollow stem and the blade assembly from an initial retracted position to a projected position and then to a final retracted position. A seal between the outer surface of the hollow stem and the housing main section seals the interior of the pipe from the external side of the housing both during and after the cutting of the cylindrical slug from the pipe.

Abstract: Holes are drilled into work pieces which are inconvenient to be mounted in a conventional machine shop drill press. Walking of the drill bit is controlled by an alignment guide 40 placed at the surface of the work piece which axially stabilizes the drill bit while it rotates. Downward axial force is applied to the drill bit by a screw action which translates rotational force applied by a wrench into an axial force. The device may be affixed to the work piece by clamping or spot welding. Downward axial force is applied by way of a pair of threadably engaged cylinders 42, 44. The outer cylinder 42 is integral with a plate 32 which is affixed to the work piece. The inner cylinder 44 has a portion 46 where rotational force may be applied. When the inner cylinder 44 is caused to rotate, the rotational force is translated into axial force by the threaded engagement of the inner cylinder 44 with the outer cylinder 42.

Abstract: A tapping fitting for a pipe, preferably a plastic pipe, includes a rotatable blade assembly threaded within a sleeve non-rotatably received within a housing such that rotation of the blade assembly causes it to cut a cylindrical slug from the pipe to which the housing is attached. The opposite faces of the sleeve are exposed to the fluid pressure within the pipe thereby producing a balance of forces substantially eliminating transverse creep. In addition, the attaching section of the fitting is formed with a bore which is engageable by a sealing ring received around the rotatable blade assembly and which is of sufficient length to accommodate any axial creep, thereby enabling the blade assembly also to serve as a valve.

Abstract: A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted an elongated tubular outer shaft, and an elongated cylindrical inner shaft that is rotatably mounted through the tubular outer shaft and carries an annular hole cutter and a tubular seal. The inner shaft is rotatable for driving the annular hole cutter through the line and the outer shaft is rotatable for advancing the inner shaft and annular hole cutter and for positioning the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.

Abstract: An apparatus for tapping an opening into an existing pipeline that is under internal pressure including an elongated tapping machine body having means on one end for attachment to a pipeline, a boring bar having a rotatable feed screw therein by which the boring bar is axially positioned, and a pressure responsive valve actuated by differential pressure between the interior of a pipeline and the interior of the tapping machine body to control hydraulic pressure inside the tapping machine body to thereby counterbalance the hydraulic force applied to the boring bar.

Abstract: A diamond core drill using a sealed core bit is fastened centrally by means of a hollow shaft with a slanted cut at one end, that is used in a wedging manner to secure the tool against the work surface. This eliminates the need for an exterior frame and thus permits the use of large hole saws up to 48", held by a simple and economical tool. The tool feed towards the surface is controled via an advance control nut that screws on the filleted part of the shaft. The tool has a water feed system that entraps the water in a chamber formed by the barrel of the saw and the surface to be cut, that forces the water to seep along the sawing gap thus facilitating lubrification of the core bit. The resulting configuration is such as to allow for a single tool operator.

Abstract: A valve adapted for insertion in a pressurized fluid flow line for blocking and sealing the flow of fluid through the line without disconnecting the line and to maintain the pressure in the upstream end of the line. The valve includes two body portions which may be clamped on the fluid flow line to form a valve body in which is adjustably mounted a shaft carrying an annular hole cutter and a tubular seal. The shaft is rotatable for driving the annular hole cutter through the line and to position the tubular seal in the hole cut through the line to block and seal flow through the downstream portion of the line.

Abstract: A feed mechanism, for use with a right angle drill, capable of feeding a drill bit into a workpiece at variable thrust and position. The feed mechanism, attached to the cutting end of the drill, utilizes the mechanical advantage of a threaded member to feed the drill bit into and out of the workpiece. The entire drill and feed mechanism is held stationery during operation by a holding means which is fixedly attached to the workpiece and in which the feed mechanism is locked.

Abstract: A method for cutting an opening in the side of a pipe carrying gas under pressure, providing a bypass through the cut, and terminating the bypass when the pipe has been repaired, and apparatus for performing steps of the method. A branching saddle is bonded to the pipe, and a fixture is mounted on the pipe at the saddle. The fixture comprises a barrel through which various tool-insertion assemblies may be inserted.The tool-insertion assemblies typically include a shaft carrying a tool on one of its ends, a driving hub affixed near its opposite end, and a sealing plug slidably mounted axially on the shaft between the tool and the driving hub. The tools enter into the fixture's bore through a tool inlet, into which the sealing plug of the insertion assembly is screwed for a pressure-tight fit. The tools are individually inserted, in succession, through the fixture's bore and through the wall of the pipe.

Abstract: A water faucet valve removal and insertion tool includes a handle and a self-tapping threaded rod attached to the handle. There is a sleeve coaxial with the threaded rod and threadedly engaged therewith. The sleeve includes a rotational stop which is formed and adapted to interact with a water faucet valve. The threaded rod functions to form an internal thread in the stem of a water faucet valve to thereby attach the tool to the valve. The tool can be used to remove an installed water faucet valve or to insert a water faucet valve within a faucet housing. In either event the tool is attached to a water valve by the threaded rod and uses the rotational stop to turn an installed faucet valve or to turn a valve during insertion for proper alignment thereof.

Abstract: An apparatus for tapping live pipes includes an adaptor for affixing to a pipe, the adaptor including a valve for closing off any opening cut into the pipe. The internal drive shaft has a plurality of transverse apertures spaced apart along its length, so that it can be adjusted longitudinally to different positions with respect to the apparatus which grips the drive shaft and urges it toward the pipe during cutting. This avoids the necessity of designing a plurality of apparatuses which are adapted to cutting bits and devices of different lengths.

Abstract: An apparatus for punching a hole in a paper web, in particular for the production of liquid packs, has a movable punch which can be pressed against a counter-plate and which has a circular blade at its tip. In accordance with the invention, to permit the desired hole to be punched into the packaging material to the desired depth, using simple means, the punch has a rotationally driven cutter head. Due to the rotary movement of the punch or the blade-forming edge at the tip of the punch, the blade is no longer merely pressed into the paper web, as in previously known punching apparatuses, but in accordance with the invention it is rotated perpendicularly to the pressing movement, giving a cutting effect as when using a knife.

Abstract: A tool couple which is used with a manually-operated threading die to aid in cutting the initial threads on a pipe or bolt. The device is used to force the anterior cutting edge of the die firmly against the outer, unthreaded surface of the workpiece at the outset of a threading operation. The die is kept wedged, as the initial threads are being cut, between the workpiece and a rotatable member of the tool couple so that the die cannot slip backward toward and merely chamfer the leading edge of the workpiece. To keep the die so wedged, the rotatable member is advanced by means of a shaft in the direction of the end of the workpiece at approximately the same rate as the die is moved along the longitudinal axis of the workpiece. Usually only one revolution of the threading die, assisted by the tool couple, is required to establish the starting thread.

Abstract: A threading device comprises a longitudinally adjustable, C-shaped frame configured with mounting heads at its open ends, the heads being arranged to interchangeably mount a collet for supporting a rod or pipe to be threaded and a threaded die guide shaft mounting a thread cutting die, the pipe or rod and the die guide shaft being secured by set screws so that their confronting ends are in aligned abutment with each other intermediate said mounting heads. Rotation of the threading die on the guide shaft moves the die onto the pipe or rod to form precisely arranged threads on the latter.

Abstract: The tool includes a mandrel on which is seated and axially held an exchangeable milling cutter, coupled to the mandrel by a clutch drive ring for shell end mill arbors, for transmitting the torque during the milling procedure. In addition, a stop element is mounted on the mandrel, held against an axial displacement, but permitting relative rotation of the mandrel for operating the cutter, whereby particularly a thrust bearing is used between the mandrel and the stop element. The stop element is adjustable and limits the longitudinal movement of the cutter. To prevent any damage to the chamfer-area around the housing-bore hole by the cutter, the stop has to be adjusted accurate to the gauge, in reference to the cutting edge geometry of the cutter teeth, so that just a thin blade of material of the outer ring lip remains. The whole device is centered with the mandrel in the bore of the bearing or bushing which is to be removed after cutting one ring lip.

Abstract: A portable boring tool for refinishing the seal ring seats on ball valves is provided with a base plate which is mounted on top of the valve. A housing is supported by the base plate in a manner that permits linear movement of the housing. The housing contains gearing for transmitting motion from an input shaft above the base plate to a cutter assembly drive shaft below the base plate. The cutter assembly drive shaft rotates an automatically indexing cutter head assembly to cut successively smaller circles of material from the surface being refinished. A handwheel and feed screw arrangement is provided for moving the housing and cutter head assembly along a linear path. A micrometer is provided for limiting the depth of cut to be taken into the surface being refinished.

Abstract: Manually operable tool means includes a frame formed at one side with an apertured work piece holder, and at an opposite side with an internally threaded shaft housing in which is adjustably mounted tool supporting means and a tool element. The tool element in the form of a drill, for example, while engaged with a work piece supported in the holder is turned by means of a spring loaded handle. The tool supporting means consists in a tubular adapter sleeve which is in threaded engagement with the internally threaded housing, and which is provided with a pressure-transmitting collar against which the handle engages. The tool shaft is rotatably mounted in the adapter sleeve and has the tool element detachably secured at one end. A range of pressures may be exerted through the tool element while cutting by varying the angular position of the handle against the collar as the tool is manually turned.