Abstract: A method of manufacturing an edge reflection type surface acoustic wave device includes the step of preparing a surface acoustic wave mother substrate having a plurality of interdigital transducers formed on one main surface thereof. A cut groove is formed in the substrate by cutting the surface acoustic wave mother substrate beginning from the one main surface side thereof. This step of forming a cut groove is repeated so as to produce a plurality of cut grooves so that the first reflection edge of the respective surface acoustic wave devices are sequentially formed. Next, similarly, cut grooves are sequentially formed on the surface acoustic wave mother substrate from the one main-face side thereof so as not to reach the other main surface thereof, whereby the second reflection edges of the respective surface acoustic wave devices are sequentially formed.

Abstract: In order to manufacture parts with an outer profile, a workpiece 32 is pressed by a pressure piece 24 through a ring-shaped cutting tool 34. The cutting tool 34 has a plurality of disks with inner cutting edges 62 for removing material from the workpiece 32. The cutting edges are progressively longer in the advance direction, so that each cutting edge removes material chips and the last cutting edge in the advance direction corresponds to the desired outer profile of the part. In order to improve chip removal, the chip chambers 74 located between the cutting edges communicate with the outside through radial connection openings 128 which are distributed all around their circumference. To hold the workpiece 32 securely on the pressure piece 24, a pressure pad 76 extends through the cutting tool 34 and is supported on the side of the workpiece 32 opposite to the pressure piece 32, and a hydraulic piston 80 generates a compression force on the pressure pad 76.

Abstract: A puller (10) for removing a compression sleeve from a pipe (38) generally comprised of a cylindrical body (24) containing on one end an internal cavity (28) to receive the pipe (38) and an external double thread (30) to engage a compression nut (34) and on the opposite end a threaded through screw (14) entering the cavity (28). A disk (22) attached at one end of the screw (14) bears on the end of the pipe (38) and a torque handle (12) at the other end is used to supply increasing pressure against the end of the pipe (38). The puller (10) is threadably attached to the compression nut (34) placing the pipe (38) into the internal cavity (28) against the disk (22) while the compression sleeve (36) is contained between the compression nut (34) and the puller (10). Turning the torque handle (12) urges the compression nut (34) and the compression sleeve (36) toward the end of the pipe (38) until the compression nut (34) and compression sleeve (36) are freed from the pipe (38).

Abstract: A lightweight windshield wiper installation system is provided wherein the system includes a re-usable mounting device in combination with a lightweight windshield wiper assembly which does not require a connecting member. The mounting device includes a mounting arm having a first end and a second end, a first retaining means, a second retaining means. The lightweight windshield wiper installation system may further include an arm linkage, and a release handle. The mounting arm is operative to position a lightweight windshield wiper system onto a vehicle which is removably attached to the mounting arm via the first retaining means and the second retaining means. The release handle cooperates with the first retaining means and the second retaining means via an arm linkage to hold and release the lightweight windshield wiper system.

Abstract: A method of making a face mask including the steps of providing a plurality of lengths of Grade 2, commercially pure titanium wire, having a diameter of from about 0.21 to about 0.24 inches; forming each length at room temperature to a desired bend angle by bending the member at room temperature using rotary bending apparatus to a first bend angle that is from about 1.25 to about 1.35 times greater than the desired bend angle; and welding each of the thus formed lengths to at least one other of the lengths in an ambient, oxygen containing environment.

Abstract: A machine (200) for winding a strip of material (212) into a helical pipe wherein adjacent convolutions of the strip (212) are interlocked. The machine comprises: a frame (220) having circumferentially spaced supports in the form of rollers (266, 276, 278, 286, 288, 296 and 298) adapted to bear against the inner periphery of the pipe being wound, the outer peripheral surfaces of the rollers forming a helical path for the strip (212) and along which the strip (212) is directed when the machine (200) is in use; driving rollers (224) mounted to the frame (220) for driving the strip (212) around the outside of the rollers so as to follow the helical path and cause the adjacent edges the strip (212) to interlock; and drive means (226) mounted to the frame for driving the driving rollers (224). The driving rollers (224) and the drive means are located wholly inside of the path formed by the rollers and no part of the machine (200) engages the outer periphery of the pipe being wound.

Abstract: A refrigerator door is described for a refrigerated display case. The door includes a glass unit having first and second spaced apart glass panels where the first panel has a forward facing surface and the second panel has a rearward facing surface. A spacer element extends between the first and second glass panels. A door rail element includes an external perimeter wall extending from front to back from a point adjacent the edge of the forward glass panel to a point adjacent the rearward glass panel. A second frame element wall extends between the first and second spaced apart glass panels and extends externally out of the spaced apart glass panels to the perimeter wall. The door rail element also includes a rear wall portion extending inwardly toward the center of the door from the perimeter wall and over a portion of the rearward facing surface of the second glass panel.

Abstract: A method for manufacturing a modular starting gate. The modules making up the starting gate include a truss module, a door releasing module, a stall divider module, a front door module, a rear door module, a towing module, and a wheel assembly module. Each module is manufactured to precise tolerances using fixtures or jigs to achieve the desired tolerances. The door releasing module is coupled to the truss module. The truss module is raised mounted to the towing module and the wheel assembly module. A first stall divider module is attached to the truss module and a positioning fixture is used to properly align a second stall divider module relative to the first stall divider module. The second stall divider module is attached to the truss module. The positioning fixture is removed and the front and back gate modules are fastened to the stall divider modules.

Abstract: A joining assembly for mounting a fastening element to an external surface of a structural member of deformable material. The structural member is provided at its external surface with one or a plurality of joining projections engaging into respective recesses of a joining flange of said fastening element. The joining projections are provided at their free ends with upset beads obtained by material deformation of the joining projections and positively fixing the associated joining projection to the joining flange.

Abstract: A novel striker for locking a glove box comprises a bracket (11) having at least two fastener holes (13), a bracket (11) being attached to an interior wall of crash pad or dashboard by fasteners through fastener holes (13) and a U-shaped latching loop (15, 25) being formed integrally with the bracket (11). The glove box is located in front of a passenger seat and hinged at the crash pad or dashboard for storing the miscellaneous in a vehicle. The U-shaped latching loop (15, 25) is upwardly bent with a predetermined angle against the bracket (11). A noise damping material (19) is coated on the latching loop (15, 25) by ejecting synthetic resins.

Abstract: A system for processing elongate workpieces. The system consists of a first machining unit for performing a first processing operation on an elongate workpiece that is situated at a first location and a second machining unit for performing a second processing operation on an elongate workpiece that is situated at a second location that is vertically spaced from the first location. The system further consists of a first supply unit on which a plurality of elongate workpieces can be placed in a stored position. A transfer assembly engages an elongate workpiece in a stored position and selectively delivers an elongate workpiece engaged by the transfer assembly to one of the first and second locations.

Abstract: A waste fluorescent lamp dismantling method and apparatus is set up to clamp two ends of a waste fluorescent lamp adjacent to its aluminum caps, and to maintain an airtight seal between the clamp sections and the aluminum caps, so that when the aluminum caps at two ends are separated from the waste fluorescent lamp, the gas and vapor in the lamp tube will be prevented from escaping. This apparatus and method can rapidly process waste fluorescent lamps while also conforming to environmental protection requirements.

Abstract: A riveting apparatus is described, including a body having an abutment means (19,32) mounted at one end thereof, and stop means (52,53) mounted at a position remote therefrom, so that a mandrel (30) inserted through the abutment means (19,32) has it end remote from the head located axially by the stop means (52,53) in predetermined axial relationship to the body, characterized in that the abutment means (19,32) is adjustable with respect to the body in the direction along the mandrel axis, thereby to provide adjustment of the relative positions of the abutment (19,32) and the mandrel head (33). A pneumatic piston means for use in the rivet feeding means (55) in the riveting apparatus is also described.

Abstract: A method for mounting an external heat dissipater to a light emitting diode is disclosed. The heat dissipater is comprised of at least one heat dissipation board. A long metal strip is conveyed through a working platform and is punched to form a number of heat dissipation boards connected thereto by connection sections. Light emitting diodes are positioned on the heat dissipation boards and the heat dissipation boards are cut and separated from the metal strip to form finished products of light emitting diodes to which a heat dissipater comprised of the heat dissipation board is mounted.

Abstract: This invention relates to an improved coaxial cable preparation tool (1) that is used to prepare a coaxial cable terminal end for connector installation. The tool comprises two stages. The first stage, the jacket stripper, is used to trim the cable jacket. The second stage (20), the cable trimmer, is used to trim the remaining center, the outer conductors and the foam insulation of the coaxial cable. The first stage (10) consists of a cup or cylinder (11) with an outer cylindrical wall (12). In addition, it also comprises a blade (13) and a scrap port (14). In addition, the first stage cylinder (11) has a bore (16) extending axially down its center. The diameter of the bore (16) is set to receive a coaxial cable. The second stage consists of a hub (21) (or cutter head), a collet bearing (22) and a body (23). In addition, like the first stage, it also contains blades (13) and scrap ports (14). The scrap ports or debris ports (14) allow trimmed cable media to escape from the bores in the tool.

Abstract: A fabrication method of an industrial part having high-aspect-ratio through-hole sections using a punch and a die, includes: a first step of drilling a first hole section in a first sheet of sheet material with the punch; a second step of lifting the first sheet in tight contact with a stripper under a condition that the punch is not pulled out from the first hole section; a third step of lifting the punch so that a tip section of said punch is slightly drawn in from a bottom section of the lifted first sheet of sheet material; a fourth step of drilling a second hole section in a second sheet of sheet material with the punch; a fifth step of lifting the second sheet in tight contact with the first sheet under a condition that the punch is not pulled out from the second hole section; and a sixth step of lifting the punch so that a tip section of the punch is slightly drawn in from the bottom section of the lifted second sheet of sheet material.

Abstract: A tape bonding system may include a tape and a lead coupled to the tape. The lead may have a stress relief formed along its length which is adapted to relieve stresses and strains arising from differential thermal expansion of the materials to which the tape is coupled. The lead may have a first portion supported by the tape and a second portion which is unsupported by the tape due to an opening in the tape. The unsupported portion of the tape may be deflected to make contact with a bond pad. In this configuration, the lead may accommodate differential thermal expansion by cantilevered beam displacements. In addition, due to the provision of a stress relief, the beam can respond in a totally different rotational displacement to compressive stresses parallel to the surfaces of the integrated circuit elements being joined.

Abstract: A system for managing cables is disclosed herein. A preferred aspect of the system comprises a flat panel monitor having a front surface, a rear surface, a left side surface and a right side surface. The system also comprises a plurality of downwardly facing cable portals coupled to the rear surface of the flat panel monitor and a stand coupled to the rear surface of the flat panel monitor, wherein the flat panel monitor is forwardly rotatable on said the on a horizontal axis; and a plurality of releasably connectable retaining member are coupled to the rear surface of the flat panel monitor.

Abstract: The invention provides a high-density multilayer printed wiring board and a method for manufacturing a multilayer printed wiring board having high-density wiring that is formed easily.

Abstract: A method for manufacturing a linkage terminal mounted in a housing of a joint connector is disclosed. The method comprises a step of providing first and second terminal elements. Each terminal element includes a strip-shaped carrier and terminals integral with the carrier. The terminals are arranged at equal intervals along a longitudinal direction of the carrier and extend generally perpendicularly from the carrier. The carrier is wound in a reel. The method further comprises a step of unwinding the reel and shifting the first and second terminal elements relative to each other in the longitudinal directions of the carriers to stack the first and second terminal elements. The method further comprises a steps of welding the carriers of the first and second terminal elements intermittently along the longitudinal directions of the carriers.

Abstract: In a method of fabricating a variator disc, an outer periphery (5) of the input disc (D1), with a spline hole (4) thereof meshed with an input shaft (6), is finished using the input shaft (6) as a working reference. Subsequently, a race (2) is finished with high precisions using the outer periphery (5) as a working reference. There is an alternative method wherein a spline hole (4) with a machining allowance is precisely formed by means of a broach (X) prior to the heat treatment of a blank (B); after hardening the blank (B) by the heat treatment, tooth flanks (4a) of the spline hole (4) are precisely finished by means of a finishing broach (Y); and then, a race (2) of an input disc (D1) is precisely finished using the tooth flanks (4a) as a working reference.

Abstract: A method for manufacturing a cylinder block provides an abrasion-resistant layer in a cylinder bore by build-up welding. The method applies build-up welding to preformed recesses along an inner surface of the cylinder bore. After build-up welding, final finishing provides a finished bore surface. The method creates an abrasion-resistant surface in areas prone to piston abrasion and manages welding strain to minimize cylinder block distortion.

Abstract: The present invention relates a method of manufacturing a high fin density heat sink comprising the steps of: aligning a plurality of length sections side by side in a mutual parallel arrangement, said length sections having a cross-section comprising a first end portion, a second end portion and a web portion connecting said first and second end portions, said first and second end portions having a width wider then the width of the web portion; clamping the parallelly arranged length sections together, such that said first and second end portions of adjacent parallel length sections are abutting against each other; and bonding the length sections together by applying at least one friction stir welding (FSW) seam across the end portions of the parallelly arranged length sections.

Abstract: For a pipe joining method using shape memory alloy capable of preventing a shape memory capacity loss due to a pipe's tolerance, a shape memory alloy joint having an inner diameter greater/less than an outer diameter of pipes to be joined is installed at the outer/inner circumference of a pipe joining portion, and the pipes and the shape memory alloy joint are simultaneously enlarged/reduced. In addition, a general metal joint having an inner diameter greater/less than an outer diameter of shape memory alloy pipes to be joined is installed at the outer/inner circumference of a shape memory alloy pipe joining portion, and the shape memory alloy pipes and the general metal joint are simultaneously enlarged/reduced.

Abstract: A boom body comprises a boom front member, a boom intermediate member and a boom rear member. An arm-connection bracket is jointed to the boom front member and a vehicle body-mounting bracket is jointed to the boom rear member, thereby forming a boom. With this structure, a cross section of the boom body is less prone to be deformed and therefore, the plate thickness can be reduced, the rigidity of the boom body can be increased without mounting a cross section restraint material and the cross section of the boom is not deformed. Therefore, it is possible to reduce the boom in weight.

Abstract: A deflectable safety shield extends transversely across a cutting plane in a protective guard position completely overlying the cutting edge of a utility knife. A portion of the shield extends over-center with respect to the cutting edge, thereby tending to hold the shield in the guard position in response to contact of the shield against the operator at the normal angle of engagement during follow-through that accompanies rapid slicing hand movements. The shield is resiliently biased for movement to the guard position by a torsion spring. An outwardly-turned flange portion of the shield provides an angularly offset leverage point for reacting the torsion spring when the operator desires to perform a cutting operation. The shield swings away from the cutting plane automatically in response to pressure engagement of the offset flange portion against the box surface, thus exposing the cutting edge.

Abstract: A blade of an electric shaver is disclosed. The blade includes an interior blade detachably attached to a drive element of the electric shaver via an interior blade pushing-up means. The interior blade includes a horizontal surface, a vertical surface, and a relief surface provided between the horizontal surface and the vertical surface, and is elastically pushed upward by the interior blade pushing-up means. The blade further includes a sheet-shaped exterior blade having a plurality of blade apertures. A bottom surface of the exterior blade is elastically contacted with the horizontal surface of the interior blade by a pushing force of the interior blade pushing-up means.

Abstract: A shaving apparatus (1) with an upper cutter (11) which has at least one hole configuration (17, 18, 19) for co-operation with a lower cutter, and with information indicia (16) which are formed by characteristics (20, 21, 22) which are associated with a respective hole configuration (17, 18, 19) and provide information on the function of the hole configuration (17, 18, 19) concerned, is structured such that the characteristic (20, 21, 22) associated with a hole configuration (17, 18, 19) is provided directly in the area of the hole configuration (17, 18, 19) and hence on the upper cutter (11) with the hole configuration (17, 18, 19).

Abstract: A cutting head for a portable, hand-held, power-operated pipe cutter is constructed with at least one channel in a rotating mounting plate assembly, to permit lateral insertion of a pipe. The power-transmission arrangement employed includes at least one component that effectively spans the entrance to the channel in the mounting plate so as to ensure that driving engagement therebetween is constantly maintained.

Abstract: A decorative fruit cutting apparatus is provided formed from two semicircular sections and having an inner diameter the size of the fruit or vegetable to be cut up. A plurality of evenly spaced cutting blades line the periphery of the inner diameter of the assembled ring. The two ring sections are pivotally attached together at one end so that the two ring sections can freely expand and contract around the fruit or vegetable.

Abstract: The present invention relates to a chain saw having a chain bar portion extending forwardly from a main body. The chain saw comprises an attaching portion to which a suspension member is to be attached, and the attaching portion is arranged in the vicinity of a corner portion, where a back surface and a bottom surface of the main body meet with each other, so that a longitudinal center axis of the chain bar portion may be at an angle of not greater than 20 degrees from a vertical line.

Abstract: An angle encoder including a carrier member, a measurement tape securable on the bearing surface circumference of the carrier member by being clamped thereto and having its opposite ends engaging opposite stop surfaces provided on the bearing surface in a mounted position of the measurement tape, and an adjustment element for adjusting a position of at least one of the stop surface so that a distance between the two stop surfaces and thereby a length of the bearing surface circumference correspond to a length of the measurement tape.

Abstract: A borehole drilling and survey assembly includes a drill string of magnetic material, a non-magnetic drill collar, and a non-magnetic rotary drilling system including a drill bit. A near-bit survey instrument is located in the rotary drilling system at a fixed distance from the junction of the drill string and the drill collar. A second survey instrument is located in the drill collar at a fixed distance from said junction. The survey instruments measure the local values of the component of the earth's magnetic along the borehole axis, and these values are processed to remove the magnetic effects of the drillstring. The survey instruments optionally also measure gravity vector components to enable borehole heading to be derived.

Abstract: A new level having a very rigid and rugged construction in the form of solid blocks between four track members that guide the relative movement of the level frame and level extension. The track members and extension provide planar surfaces the length of the extended level on the top and bottom. The extension includes handgrips to assist in both extending and using the level. As an option, a rotatable spirit vial is located in the extension. The rotatable spirit vial may be set for any angular degree between the horizontal and the vertical. Thus, angular pitches may be accurately determined with as much ease as the horizontal or vertical.

Abstract: A tool for inspecting and verifying weld beads in a pipeline includes a plate-like structure which has a surface and edges adapted for inspecting and verifying various weld bead attributes. The surface is imprinted with several identification marks, including for example, wall thicknesses and ratios of weld bead width to wall thickness. The tool can be used to verify weld bead convexity, weld bead concavity, and weld bead width for many different wall thicknesses. The tool is capable of verifying weld bead width and axial alignment of successive sections of pipe along the pipeline. All verifications and measurements are visual and tactile, without need for complex machinery or calculations, and can be accomplished with a single, lightweight tool. Additionally, a single tool can be used to verify weld beads for a variety of different pipe thicknesses.

Abstract: The invention relates a bow vice that permits easy leveling of the vice in a horizontal plane. The vice has a base with a plurality of securing holes and having a base pocket on a first surface; a pivoting block having an attachment member for holding an object and having a pivot pocket on a first surface; a ball bearing disposed in said base pocket and said pivot pocket and holding said pivoting block and said base apart in spaced apart relation to each other; and a plurality of pivot bolts having a first end attached to said pivoting block and a second end attached to said base, said plurality of pivot bolts configured to pivot said pivoting block with respect to said base in two horizontal directions to thereby level said pivot block.

Abstract: A contact gauge for measuring a contoured surface on work piece is presented having a matching contoured profile and multiple sensors inserted in a gauge body. The gauge body uses bores filled with spherical balls. At least one ball from each bore contacts the contoured surface, which causes displacement of the ball. The displacement is transferred to and recorded by the sensor. The layout of the gauge permits multiple sensors to be mounted in a compact gauge housing and the gauge housing, in turn, may connected to a robotic arm for rapid and repeated use as an automated measurement apparatus for a component assembly line.

Abstract: An adhesive backed measuring tape is disclosed that can provide customized, printed measurement scales on a single flexible backing that has a positionable or repositionable adhesive for contact with flat surfaces, single curved surfaces, or compound curved surfaces. In a preferred embodiment, the measuring tape has multiple scales printed thereon. The combination of linear sections and transverse axes defined by intervals can permit a variety of repeating scales on a single tape, minimizing waste of tape unrolled from a dispenser.

Abstract: A tape measure that incorporates a marking device for allowing an individual to measure and mark a wide variety of materials in a more efficient and economical manner, and for measuring and marking the beginning point of reference and the measured position point simultaneously. The tape measure has a housing, a coiled measuring tape, a tape tip, and a marker having a marking wheel mounted on an axle.

Abstract: Tape measure end hook for eliminating error in plane surfaces measuring. The tape measure end hook consists of a slidable hook composed by two pieces attached by rivets to the end of the metallic tape measure for more accurate when measuring the dimension placed in/on plane surfaces. The metallic tape has the apertures for rivets shaped that the strained end of the rivets not exceed the bottom/lower surface of the tape for eliminating snagging on a work piece.

Abstract: An air flow detecting system is provided for monitoring air flow in a dryer system. The dryer system has an exhaust passage through which air from a drying compartment flows. The air flow detecting system includes a detector for monitoring a rate at which air from the drying compartment travels through the exhaust passage, and a signal generator. The signal generator is responsive to the detector and generates an electrical signal for which at least one of phase, frequency, voltage, or current varies over a continuous range based on a measured flow rate.

Abstract: A transversely stretched nonwoven fabric is manufactured by transversely stretching a nonwoven fabric. First, an original web comprising a plurality of un-oriented filaments is heated to a temperature higher than its stretch suitable temperature by 5° C. or more. Next, the heated original web is stretched at a rate of 1.2 to 3 in its transverse direction to stretch the filaments of the original web with almost no molecular orientation involved. Then, the original web stretched transversely at a rate of 1.2 to 3 is heated to the stretch suitable temperature and the original web is further stretched transversely at the stretch suitable temperature. With these steps, a transversely stretched nonwoven fabric in which the original web is stretched transversely at a rate of 7 times or more in total as compared with the state of the stretch thereof is manufactured with a high tensile strength of 132.5 mN/tex (1.5 g/d) in the transverse direction.

Abstract: An upper of a shoe is made by sewing together a plurality of sheet parts. The sheet parts have adjacent marginal ends sewn to each other, thus forming a stitch seam along the adjacent marginal ends. A seam spacer is disposed between and stitched to the adjacent marginal ends so as to provide a spacing between the adjacent marginal ends at the stitch seam. The seam spacer is made of a material which is pliable and which has water passages for draining water. The seam spacer may be a porous mat made of a filament material, or a sheet formed with through-holes.

Abstract: A sandal construction, including a sole and a strapping system for retaining the sole on a foot. The strapping system includes a front strap and a buckle strap that cooperatively adjust and retain the sandal on the foot of the wearer. The front strap extends from the ankle region to the forefoot region passing over and through the sole. The front strap crisscrosses to form an X-shaped crossover that is substantially centered in the forefoot region. The front strap extends through a buckle that is attached to an adjustable-length buckle strap. The wearer adjusts the strapping system through both the ankle and forefoot regions simply by adjusting the length of the buckle strap.

Abstract: A waterproof shoe includes an upper having a bottom open end which has an outer surface and an inner surface, an outer welt extending along the outer surface of the bottom open end, and an inner welt extending along the inner surface. The bottom open end is sewn to the outer and inner welts, thus forming a stitch seam. An outsole has a top side connected integrally to the bottom open end and the outer and inner welts, a bottom side, and a peripheral face connected between the top and bottom sides. The top side penetrates through the stitch seam and clearances present between the bottom open end and the outer and inner welts. The outsole is produced by forming a molding material immediately below the upper and by causing the molding material to flow into the clearances during the forming of the molding material.

Abstract: Improvements in footwear for sporting purposes requiring the kicking of a ball on or adjacent to an instep of the footwear, there being provided at least one insert (24) for or in addition to the footwear which is attachable to the footwear on or adjacent to the instep such that a concave kicking surface (28) is provided, the radius of curvature of the kicking surface (28) being substantially the same as or slightly greater than the radius of the ball, the at least one insert (24) being of a maximum height at the front of the instep at least as great as the maximum height at the rear of the instep.

Abstract: A ballast cleaning machine is a machine frame supported on the track by undercarriages, one of the undercarriages at an end of the machine frame being displaceable in the longitudinal direction. Two vertically and laterally adjustable endless ballast excavating chains are sequentially arranged in the longitudinal direction for excavating ballast from a ballast bed and mounted on the machine frame between the undercarriages, and drives vertically and laterally adjust, and revolve, each endless ballast excavating chain. At least two track lifting devices are mounted on the machine frame, and a screening installation for cleaning ballast is mounted on a car linked to the machine frame. A first conveyor arrangement conveys the ballast excavated by the two endless ballast excavating chains to the screening installation, and a second conveyor arrangement distributed the cleaned ballast from the screening installation to the ballast bed.

Abstract: Snow track preparation machine with mill installed in a revolving manner and including a pump driven by a power source, a hydraulic motor connected to the pump on the delivery side and the return side, an actuator supported on the assembly frame and realized for rotation of the mill and driving wheels. The power source is made up of a motor (2) which drives the driving wheels (5,6) and the pump (9) and actuator (16) are influenced by a control unit (17) connected to a sensor of motor rpm nD, to a sensor of the rpm of the driving wheels na1 and na2, to a sensor for the hydraulic motor of the mill and an actuator path sensor with the control unit (17) connecting the magnitudes detected by the sensors by means of an algorithm and controlling on the basis thereof the pump (9) and the actuator.

Abstract: A method is described for removing sediments during dredging operations to minimize the release of contaminants at marine locations containing sediments that are deemed contaminated and require removal. The preferred method comprises the use of a specially designed marine vessel that establishes a negative differential pressure gradient between a dredge control zone and the external ambient water environment, thereby preventing the release of contaminants dispersed during the dredge process into the ambient water environment. The preferred method also includes the use of marine vessels to remove contaminants contained within said control zone and to provide for the management of solids collected in the process.

Abstract: A backhoe unit detachably attached to a backhoe mounting frame disposed on a tractor body rearwardly of a driver's seat. The backhoe unit includes a base having engaging portions for connection to the backhoe mounting frame, a driver's footrest and a control column disposed on the base, a vertical swing axis supported by the base, a boom bracket supported to be swingable about the vertical swing axis, and a boom assembly attached to the boom bracket. The boom bracket is swung horizontally by a single swing cylinder having one end thereof connected to the base through a first cylinder connecting portion, and the other end connected to the boom bracket through a second cylinder connecting portion. The swing cylinder is disposed in a lateral position of the base.