Abstract: Apparatus is disclosed in which a flat, transparent, plastic template bears a combination of inscribed marks and apertures to cooperate with each other so as to enable a user to readily draw two-dimensional depictions of circular and linear plasmid deoxyribonucleic acid (DNA). The template further cooperates with additional apertures for the forming of indicators and markings commonly incorporated in drawings of plasmid DNA.

Abstract: A number of computer-numerical-control (CNC) machine controllers are associated in the same plant or facility or in related facilities. Each CNC machine controller gathers and stores status information related to the state of operations being performed. A remotely located central computer separately addresses each of the controllers to transfer the status information to a central location where the entire plant or facility operation can be evaluated.

Abstract: A tool mountable on a high speed spindle of a CNC machine tool, operable to finish a side edge of a flat workpiece positioned directly on a support surface of the machine tool, generally consisting of a member having a shank portion removeably mountable on the spindle of the toolhead assembly of the machine, and a head section. The head section is provided with an annular side surface engageable with the side edge of a flat workpiece positioned directly on the support surface of the table of the machine. The annular surface also is provided with a profile corresponding to the profile of the side edge of the workpiece being finished, and abrasive particles bonded thereto.

Abstract: The self-penetrating fastening device proposed consists of a rivet (3), acted on by a punch (13), and a die (15), the rivet consisting of a head (4) and a shank (6) with a central cavity (8) whose open end partly penetrates a metal sheet (1) in which it is held. At the end of the rivet shank (6) remote from the rivet head (4), the cavity (8) is essentially conical in shape, the angle of the aperture being &agr;. In addition, the transition zone between the rivet shaft (6) and the underneath (11) of the rivet head (4) is essentially rounded (R1). A rivet joint produced using this device is sufficiently strong to meet severe requirements, and the surface of the metal sheet in the region of the rivet is not affected by the perforation process.

Abstract: The invention relates to an internal combustion engine with direct fuel injection comprising at least two adjacent inlet valves (1) per cylinder, a number of outlet valves (2), an essentially coaxial spark plug (3), an injection valve (4) and a piston (5,5′). The aim of the inventive engine is to provide an improved mixture preparation which is characterized by low fuel consumption and low exhaust emissions. To this end, the injection valve (4) is arranged between two of the adjacent inlet valves (1) and the section of the cylinder wall adjacent to said inlet valves (1). in addition, the piston (5,5′) has a longitudinally extended combustion chamber cavity (6), whereby the combustion chamber cavity (6) essentially extends along the front surface of the piston (5,5′) in the direction of the vertical projection of an injection stream (E) exiting from the injection valve (4). Said cavity also comprises a step (7) which essentially runs in a transversal direction.

Abstract: In a machine tool having a base member, a member moveable relative to the base member, an elongated drive screw supported on the base member and an operative connection between the moveable member and the drive screw whereby upon driving the drive screw the moveable member will be caused to be displaced relative to the base member, an anti-whip device generally consisting of a drive screw support member pivotally supported on the base member, having angularly spaced arm sections alternatively disposable in a line of travel of the operative connection and engageable with the elongated drive screw in supporting relation at points intermediate the ends thereof, each of the arm sections being engageable by a component of the moveable member as it traverses in a selected direction to cause the arm section to pivot out of its drive screw support engagement, ahead of the operative connection, and simultaneously cause the other of the arm sections to pivot into its drive screw support engagement, behind the passage o

Abstract: An automatically opening knife including an elongated handle with opposing separate sides forming a spacing for a blade having a working end and a tang at the opposite end. The blade may be extended from or folded into the handle. A coil spring connected between the blade and the handle biases the blade to an open position. A rotatable locking element prevents opening or closing the blade by rotational positioning with the use of a cutout in the locking element that permits the tang to pass through during pivotal movement of the blade. The locking element is further rotatably actuatable to both an unlocked position to coincide the cutout and the tang and a locked position where the locking element abuts the tang to lock the blade from movement. The locking element has separate locking element abutments cooperating with separate tang abutments to selectively prevent movement of the blade.

Abstract: An attachment connectable to a boom member of a machine for performing work functions generally consisting of a handle pivotally connectable to a boom member of the machine, a ground engageable arm member pivotally connected to the handle and an extendable strut assembly interconnecting the handle and arm member consisting of a hydraulic cylinder assembly having a cylinder member pivotally connected to the handle and a rod member pivotally connected to the arm member, and including means intercommunicating the base and rod ends of the cylinder member, at least one electrically operable valve disposed in the intercommunicating means and operatively connectable to control means disposed on the machine, selectively operable to open the valve and permit the free flow of fluid between the base and rod ends of the cylinder member, and correspondingly the angular displacement of the arm member relative to the handle upon maneuvering the arm member by an operator of the machine, and to close and preclude the free flo

Abstract: A tool changer for a machine tool having a toolhead assembly including a spindle with a device detachable securing a tool thereto, generally consisting of at least one device for holding a tool detachably securable to the spindle, pivotally connected to the assembly and angularly displaceable in a plane including the axis of the spindle between a retracted position and an extended position for transferring a tool between the tool holding device and the spindle; and a device for angularly displacing the tool holding device between such retracted and extended positions.

Abstract: An ejector for providing motive gas for conveying particulate solids from a solids supply vessel through a conveying pipeline includes a gas introduction stage and a solids introduction stage. The gas introduction stage includes a fluids mixing chamber having a principal inlet port for connecting to a source of high-pressure compressed gas, an outlet port connected to the solids introduction stage, and a secondary inlet port that is open to the atmosphere or other low-pressure gas source. The solids introduction stage includes a fluids/solids mixing chamber having an, inlet port connected to the gas introduction stage, an outlet port for connecting to a pipeline, and a material receiving port for connecting to a vessel outlet. As the compressed gas enters the gas introduction stage, the high velocity gas induces atmospheric air or other low-pressure gas from the secondary inlet port, thus increasing the mass flow into the solids introduction stage.

Abstract: An ejector mountable on a planar wall of a housing for gathering and conveying particulate material to within such housing generally consisting of a flat base plate segment mountable on such planar wall member, a first set of flat plates joined together and with the base plate segment defining a converging fluid passageway, a second set of flat plate segments joined together and with the first set of plate segments and the base plate segment defining a restricted fluid passageway communicating with the converging fluid passageway and a third set of flat plate segments joined together and with the second set of plate segments and the base plate segment defining a diverging fluid passageway communicating with the restricted fluid passageway, one of the plate segments having a first inlet opening through which a stream of pressurized fluid may be injected into the converging and restricted fluid passageways, one of the plate segments having a second inlet opening through which fluid may be suctioned by a negativ

Abstract: A cellular structure, in particular a supporting or sound insulation structure plantable with greenery, one with earth, rock, or bulk material filling (Ed), arranged in particular as cells (Z) in layers, the cells being bounded at least in part by flat flexible, liquid-permeable, and corrosion-resistant material (F), in particular material in the form of netting or a grating, and having at least one dimensionally stable frontal element (FG) also in the form of netting or a grating which is connected to tension bracing (ZA) extending into the cell filling and to support bracing (ZV) ensuring the assigned frontal surface inclination and frontal surface position of the structure, the support bracing (ZV) for the individual front elements having at least one elongated bracing element (AS) which on one side is connected to a front element (FG) and on the other extends into the area of the filler.

Abstract: The apparatus for diverting blood from the retro hepatic inferior vena cava (IVC) and internally shunting renal and infra renal IVC blood into the right atrium during surgery on the liver, its vessels, or the retro hepatic IVC is described. It is symmetrical on its mid horizontal axis permitting similar utility whether venous access was above or below the liver. It is a hollow plastic tube with two sidewall openings, one at each end with four intervening completely encircling balloons. It is continuous with a proximal component which serves to remotely manipulate, infuse fluids and inflate the balloons in the distal component. Once introduced into the venous system by right atriotomy or infrarenally by venotomy, the distal component would be advanced and seated in the right atrium and supra renal IVC.

Abstract: A packing gland assembly mountable on a shaft extending through an opening in a wall member of an apparatus consisting of a main housing member mountable on the shaft having an opening for receiving the shaft therethrough, the opening being provided with an enlarged section defining an annular space about the shaft when the man housing member is mounted on the shaft with the shaft extending through the opening therein; a split housing member mountable on the shaft including a section receivable in the annular space provided by the main housing section, such section having an opening for receiving the shaft therethrough and being provided with an enlarged section defining an annular space about the shaft when the main and split housing members are mounted on the shaft with the shaft extending through the openings therein; at least one packing ring mountable on the shaft and receivable within the annular space of the split housing member when the main and split housing members are mounted on the shaft in the as

Abstract: A product and a process for using a resilient, self-lubricating, shaped product for use in minimizing friction when the surface of said product is in contact with a relatively movable surface comprising the composition of a thermoplastic polyurethane and an amide having the general formula: RC(═0)NHR′, wherein R is the residue of a saturated fatty acid and R′ is the residue of an unsaturated fatty acid, said amide being intimately interspersed within said thermoplastic urethane for continual migration outwardly from said surface. The amide is preferably N-oleyl palmitamide.

Abstract: The invention relates to a process for producing a region of greater wall thickness in a longitudinal hollow section (1) which, to this end, is subjected to a radial and axial pressure and plastically deformed thereby. The hollow section (1) is secured in a matrix (2) corresponding to the section dimensions which has an enlarged cross section corresponding to the intended final dimensions of the hollow section (1) in the deformation region. The essential embodiment consists in that the deformation to attain an increased wall thickness (14) takes place in a region between the ends of the section. In addition, the wall thickness (19) can be increased at at least one of the ends of the section.

Abstract: The invention relates to a device for interrupting the power flow between at least one valve and at least one cam of a camshaft, especially in a valve mechanism of a reciprocating internal combustion engine. The device comprises a first actuating lever cooperating with the at least one valve, a second actuating lever that is pivotally mounted in relation to the first actuating lever cooperating with the at least one cam of the camshaft and a coupling element arranged in such a way that it can rotate about an axis parallel to the swiveling axis of the second actuating lever. The coupling element couples both actuating levers in a first swiveling position and decouples both actuating levers in a second swiveling position. In order to reduce overall dimensions, the first actuating lever is mounted on fixed compensation elements and carries the swiveling axis for locating the second actuating lever.

Abstract: In a vehicle production process, a system for detecting selected surface defects of a vehicle body prior to painting generally consisting of a conveyor operative for advancing a plurality of such vehicle bodies along a line of travel; an array of devices disposed transversely of the line of travel, operative to irradiate at the selected angles, sequential transverse sections of each of such vehicle bodies with grid patterns of light; a plurality of devices, operative to optically detect reflective grid patterns of light from the transverse sections; a computer including a processor and a database provided with files of reference data representing relevant defect surfaces of selected vehicle bodies, operative to process data generated by the detecting devices, utilizing triangulation techniques and accounting for three-dimensional phase shifts, to generate composite detected data, comparing such composite detected data with selected reference data to generate identification data representing coordinates of rel

Abstract: A bucket assembly mountable on the handle of an excavator machine and the like generally consisting of a bucket; a pair of ripper teeth mounted on the bucket for pivotal movement about a common axis; abutment surfaces disposed on the bucket for restricting the angular displacement of the ripper teeth between storage positions and operative positions; and devices for retaining the ripper teeth in their stored and operative positions, operable upon causing portions of such ripper teeth to engage the ground and the bucket to pivot in a selected direction relative to the handle, to release the ripper teeth.

Abstract: The folding knife includes an elongated handle forming a spacing therebetween. An elongated blade having a working end and a tang at the opposite end within a common plane, a pivot including a pivot axis connecting the tang to the handle to permit the blade to pivot selectively into an open position at which the blade extends outwardly from the handle and into a closed position in which the blade is nested into the spacing. The blade is provided with a cam, that may be a rolling cam, secured to the blade eccentric to the pivot axis and spaced from the plane that includes the blade. An operating spring is secured at one end to the handle and has abutting contact with the cam remote from the end in the handle thus forming force vectors that are arranged selectively to resist the pivoting of the blade to an open position and when in an open position resisting the pivoting of the blade to a closed position.