Abstract: To fabricate a bent assembly of two metal tubes with one extending through and radially spaced within the other, the bending is done by inserting the smaller through the larger tube producing a tubular work assembly, clamping a leading work portion onto a bending forming die with the inner tube eccentric in the region to be bent against the die-adjacent inner wall portion of the outer tube, bending the region trailing the clamped portion by wrapping onto the bending die, while at (and immediately preceding) the point of feed onto the die the tubes are supported against collapse by a cylindrical mandrel in the smaller tube and a mandrel of crescent cross-section interposed between the large and small tube, in the plane of bending providing reaction support by a slideshoe bearing against the outer tube diametrically remote from the die; the mandrels being axially shiftably supported.

Abstract: An apparatus for forming heat exchanger turbulators from a roll of sheet metal strip stock employs two forming wheels with generally triangularly shaped teeth meshing with one another and one roll being driven about a fixed axis and the other roll being journalled on a second axis parallel to the first and disposed in floating relation thereto with means for adjustably biasing the second roll toward the first. A special tooth on each roll is used to form the turbulator handle and cut-off blades may be included to automatically cut the formed strip into individual turbulators.

Abstract: In a device for extruding hollow articles, e.g. tubes, the die is rotatably mounted in the die holder. The die has a hole for shaping the external surface of the tube. The axis of said hole is eccentric relative to the axis of the external surface of the die holder. The device comprises a needle for shaping the internal surface of the tube, the needle entering the die hole during the process of extrusion. The needle axis coincides with the extrusion axis. The die holder is made of at least two bushings, installed one inside the other. The axes of the internal surfaces of the bushings are offset relative to the axes of their external surfaces. The bushings are capable of turning for adjusting the position of the die hole axis relative to the needle. This design of the die holder makes it possible to minimize the eccentricity of the axes of the internal and external surfaces of the tubes extruded in the device realized according to the present invention and installed in a conventional press.

Abstract: A bending matrix, and in particular a folding matrix of a die bending tool. The inlet edges of the matrix opening are provided with a liner formed from an anti-friction material with a low coefficient of friction, and the base of the matrix opening is formed of a material capable of and intended to absorb the ram pressure.

Abstract: A collector for the broken-off stems of blind rivets consists of a cylindrical container (20) secured to the rear of the riveting gun head (11). A cylindrical cover (22) closely surrounds the container end and is rotatable around it to a limited extent. The container (20) has an aperture (21), and the cover (22) has a corresponding aperture (23), the cover being biassed by a spring (24) to keep the apertures non-aligned. The cover (22) is rotated by means of a grip (38, 39) to bring the two apertures (21, 23) into alignment to discharge stems from the collector, the aperture (21) being closed automatically by the spring (24) on release of the cover. The container and cover may be of transparent material.

Abstract: A wedge system is disclosed for adjustably positioning tools in a forging press or the like. The system includes a wedge positioned between two assemblies and provided with a locking taper. Hydraulic means permit lubricant to be supplied under pressure to the surface of the wedge so that the wedge is released and can float laterally when large loads are applied to the system, as for example during a tooling jam. Means are provided to prevent substantial separation between the interfaces of the wedge and the remainder of the system when hydraulic fluid is applied to prevent seal extrusion or blowout. The seals are arranged to prevent blowout or extrusion when the associated faces are separated a substantial amount. Further, a hydraulic actuator is provided to take up the load on the mechanical adjusting screws prior to release of the jam and to control the movement of the wedge once it is released.

Abstract: The press is of the type having a press housing and a press ram which can be moved backwards and forwards by means of two planetary gears. The planetary gears have two identical, coaxially arranged, fixed internal gear rims with an external gear arranged in each of them with a pitch diameter which is half the pitch circle of the internal gear. The housing is provided with a guide for the press ram. A bearing disc is connected to the external gear, has its bearing axis intersecting the contact point between the two pitch circles, and is at least indirectly pivotable in the ram. A driving gear is positioned coaxially to the internal gear rim. The improvement comprises that the driving gear is arranged between the two external gears mounted in pivotable manner in the driving gear and that a bearing for the driving gear is provided on the internal gear rim.

Abstract: Apparatus for analyzing trace components contained in a sample gas. The sample gas is directed into a reaction chamber and ionized. The resultant trace ions are drifted by an electric field, out of the sample gas, through an inert gas curtain and then through an orifice into a vacuum chamber where they are focused and analyzed. The curtain gas flow may be greater than the flow through the orifice, in which case the gas curtain acts as an ion window which is transparent to ions but blocks sample gas flow into the vacuum chamber. Alternatively, the curtain gas flow may be controlled to admit a desired flow of sample gas through the curtain into the vacuum chamber, in which case the gas curtain acts as a window for ions and as an infinitely variable orifice for the sample gas. Preferably the curtain gas is cryopumpable and is cryopumped by cooling the interior surface of the vaccum chamber.

Abstract: A method and apparatus are disclosed for improved collection of airborne particles in an airborne prospecting method. A high volume of air is sampled and processed through a cyclone separator to achieve a high concentration of particle collection on a collecting surface. The collected particles may be analyzed as to mineral element type and correlated with the geographical position of collection to permit a deduction as to the type of minerals and soil in the terrain below.

Abstract: A method for leak-testing synthetic separators for interleaved planar electrodes is described. The method includes installing the separator such as a diaphragm or membrane about the electrodes to create an enclosed chamber within the separator, supporting the electrodes from a supportive cell housing, pressurizing the created chamber to a predetermined pressure with a gas, slowly filling the housing with a liquid to a level above the separator and observing the separator during the filling operation to determine if leaks are present in the separator.

Abstract: A method for determining the Watson-Nelson characterization factor of hydrocarbons wherein the absolute viscosity and specific gravity are sensed providing first and second signals, respectively, corresponding to the absolute viscosity and specific gravity. The signals are then combined in accordance with the following equation:K = A + B/S.sub.2 + C 1n 1n (V/S.sub.1)where:K = the Watson-Nelson characterization factor of the hydrocarbon mixture;V = the absolute viscosity of the hydrocarbon mixture;S.sub.1 = the specific gravity of the hydrocarbon mixture;S.sub.2 = the specific gravity of the hydrocarbon mixture adjusted to 60.degree. F; andA, b and C are predetermined constants.

Abstract: An apparatus and method for the determination of the flow properties of thermoplastic materials in admixture with volatile liquids or other additives comprising an extruder which is employed to melt the polymer and admix therewith volatile blowing agents or additives. Subsequently the molten mixture is injected into an extrusion plastometer or rheometer for extruding the mixture, while still in molten form, through a capillary orifice in the extrusion plastometer. When volatile liquid blowing agents are admixed with the molten polymer in the extruder, an adjustable linkage is provided interconnecting the plastometer and the extruder whereby the pumping rate of the blowing agent can be variably adjusted and the blowing agent positively injected into the molten polymer within the extruder by the reciprocal motion of a piston means employed in the extrusion plastometer.

Abstract: A technique for generally determining the volume of a layer of a constituent material in a centrifugally separated mixture of material. A centrifuge tube is used to hold the material mixture and an appropriately shaped body is disposed in the tube in the zone occupied by the constituent material whose volume is to be measured. The body reduces the available volume within the tube which may be occupied by the constituent material, and thus expands the axial extent of the constituent material to make visual measurement of the constituent material more accurate.

Abstract: A two-piece body high pressure membrane test cell is disclosed with a tangential feed into the interior pressure chamber in which a central distributor element is mounted with the lower frusto-conical end thereof at a critical spacing above a filter membrane. The membrane is supported on an annular land of a filter support disc which has a peripheral edge zone compressed in a sealed fit between the lower and upper pieces of the cell body. The edge zone is machined to a precise thickness to provide a reproducible and accurate spacing between the filter membrane that rests on the support and the lower end of the distributor.

Abstract: A testing apparatus comprising two platens one of which is a self-aligning pecimen contacting platen which includes an upper portion comprising a first member which contacts the specimen and a second member which is spaced from a base by a plurality of balls. The first and second members are movable relative to each other to pivot the specimen into proper alignment between the platens when the specimen is subjected to compression. The plurality of balls are juxtaposed between and engage the second member of the upper portion and the base and serve to support the upper portion for lateral and rotational movement relative to the base to facilitate alignment.

Abstract: A torque indicating attachment for a pipe tong arm is disclosed. The attachment comprises support means releasably connected to the arm and a toggle pivotally connected to the support means. The toggle includes a second toggle link oriented radial to the center of the pipe gripping means of the pipe tong and a first toggle link oriented perpendicular to the line from the center of the pipe to the pivot point of the pivotal connection of the second toggle link to the support means. The first toggle link includes an electro-mechanical transducer connected to a visual and sonic readout galvonometer.

Abstract: An apparatus is disclosed for measuring the tension in a belt. The preferred embodiment incorporates a housing which is adapted to be momentarily attached to a belt. As the belt tension is varied, the device indicates the change in tension. This is achieved by incorporating a roller which contacts the belt, the roller supporting a pointer or needle which gives a reading by its movement adjacent to a scale on a housing. The housing is held secure to the belt by a clamping means contacting one edge against the belt. The housing is additionally supported against the belt by the roller which is supported on a shaft in the housing. The roller thus rotates on elongation, and the needle deflects.

Abstract: A measuring wheel for the detection of vertical forces on the wheel when in operation, in which the wheel rim is provided with a plurality of recesses arranged in a circumferential direction adjacent to one another, the recesses being positioned so that webs are formed therebetween which extend transversely through the wheel rim from one side to the other. Detecting elements in the form of wire strain gauges are positioned within the recesses on the webs; these detecting elements are spaced from each other to detect the vertical forces transmitted between the wheel and the rail in the plane of the detecting elements. Additionally, the measuring wheel can be formed with the profile of a rail wheel or a wheel track, and when the measuring wheel has the profile of a wheel track, a separate wheel is used having the profile of a rail wheel.

Abstract: The adhesive bond test apparatus comprises: a U-shaped bracket of aluminum, upported on a table; a tiltable rectangular panel of aluminum pivotally mounted in the U of the bracket for tilting between a horizontal and a vertical position; a sheet adherend made of two Kraft paper layers bonded together with asphalt, attached to one surface of the panel; a plurality of elongated strips adherends each having a specified weight attached to one end, and the other end bonded over a given small area to a portion of the sheet adherend that will be up in vertical position, wherein the weight applies a constant gravity load to the bond during the test. Both shear and a pull tests are disclosed.

Abstract: The invention provides an improved wireline that comprises one or more insulated conductors contained within a smooth walled metal sheath; which improved wireline is satisfactory to perform all of the normal wireline operations in an earth borehole and particularly in very deep boreholes; and in which the sheath material of the wireline is a metal having a high yield strength to weight ratio, and the sheath is swaged into intimate contact with the inner insulated conductor or conductors, such that the weight of the inner conductor or conductors and insulation is effectively supported by the sheath.

Abstract: A hosiery article stretching and marking device and a leg form are provided to accurately measure and compare the relative compressive forces of longitudinally spaced portions of stretchable hosiery articles. The form includes integral leg and foot portions with the leg portion being circular in cross-section throughout its length and with successive segments increasing in circular diameter from the foot portion and throughout the length of the leg portion. Flat flexible and radii conformable sensor devices are supported in spaced longitudinal positions along the leg form and pressure indicating gauges are operatively connected to the sensor devices and provide a visual indication of the relative compressive forces applied by the hosiery article on the areas of the leg form where the sensor devices are located.

Abstract: The separation between aircraft approaching a common runway is minimized by measuring the existing wind conditions at a preselected point relative to the runway threshold and basing a prediction of the movement of wake vortices on the measured conditions. The prediction of vortex movement is based upon a vortex advisory algorithm prepared from a plot of wind conditions which predictably remove vortices from the flight path.

Abstract: An electromagnetic fluid flowmeter including two arc-shaped, circular segment electrical insulating bodies B.sub.1, B.sub.2 disposed vertically opposite each other on the internal periphery of a tubular conduit M, and a pair of horizontally opposed, convex electrodes D.sub.1, D.sub.2. The respective dimensional relationships of the electrodes and insulating bodies, and the flux pattern of the magnetic field within the conduit, are geometrically determined and configured such that voltage induced between the electrodes is always proportional to the fluid flow rate regardless of the flow velocity distribution within the conduit.

Abstract: A magnetic flowmeter includes a field coil extending along the longitudinal axis of a flow conduit for generating an integral magnetic field concentrically located about the coil and perpendicular to the flow. An inner electrode surrounds the coil, and the conduit itself is used as the other electrode, thereby providing a large surface-area electrode for sensing flow induced voltages. High current (over 20 amperes), very short duration (less than 10 millisecond) pulses energize the field coil whose inductance is low enough to permit electrode output voltages to be read within a few milliseconds after the magnetic field current pulse is turned on. The measured output voltage comprises a short-pulse, flow induced component proportional to flow rate, superimposed on a d-c voltage approximately equal to the galvanic potential at the electrodes.

Abstract: An electromagnetic flow meter using pairs of concentric electrodes mounted through a pipe line in an opposed facing relationship. The output flow signals from the electrodes are first differentially amplified with respect to a common reference signal and then the output signals from the first differential amplification are differentially amplified in two successive operations to produce a final flow signal having a value "n" times the output signal from a single pair of "n" facing electrodes.

Abstract: An adjustable depth tubular sheath thermowell which permits changing the depth of extension of the well from its mounting into the environment to be sensed. Excess length at the exterior may be trimmed off and after trimming the open end may be sealed. An interior sensor and lead wire assembly is removable from the tubular sheath or well. The well can thus be trimmed to a desired length to fit a particular application and the fittings utilized with the well may again be reassembled to adequately seal the interior of the well against contamination and foreign material.

Abstract: A material visually changeable with changing temperature is incorporated internally in a transparent solid body having physical dimensions and thermal conductivity and diffusivity characteristics selected to provide a thermal analog of an object. The object and its analog are exposed to equivalent ambient conditions, concurrently, resulting in a visible change in the thermal analog corresponding to the internal temperature change in the object. The temperature indicating material may include a single transition temperature or multiple temperature indicating materials may be incorporated to display a plurality of transition temperatures and may be reversible or irreversible.

Abstract: A silicon junction diode is used as one element of a resistance bridge to rm the temperature sensing element of an electronic thermostat. Current through the diode is maintained at approximately constant value so that the negative temperature coefficient characteristic of the diode can be utilized. The values of the fixed resistors in the bridge are selected so as to provide a null at a preselected temperature. Used in conjunction with a voltage comparator circuit having positive feedback, a digital control signal is provided whenever the temperature of the sensing element rises above the preselected null value. The addition of a single NOR gate allows the combination of this digital control signal with an external control signal.

Abstract: A replaceable sensing and indicating element for a bi-metallic thermometer of the type having an enclosure and a stem. The sensing and indicating element comprises a stem terminating in a bi-metal helical temperature sensing coil, a shaft extending inside the stem from the coil, an indicating pointer secured to the shaft, a calibrated temperature scale, adjustment means for orienting the scale, and a connector affixed to the sensing element stem. The sensing element is telescopically received within the thermometer enclosure and stem and is held in place by a bezel ring and restraining means. Accordingly, the sensing element may be easily removed from and replaced in the enclosure.

Abstract: A plankton collector comprised of an open cylinder having a netting and motor with an attached propeller. The motorized propeller and netting are attached within the cylinder so that the propeller pulls water through the netting thereby concentrating the planktonic organisms. Flowmeters can easily be attached for quanitative measurement of the water flow. Two species of this invention are set forth. One species is designed to be tethered by its electrical cord in flowing water. The other species, has a portable power supply and is designed to be used by a submerged diver.

Abstract: When liquid petroleum samples are taken from petroleum producing and transporting equipment in cold, dry areas, for example, northern Alaska, there is a danger of electrostatic sparking and explosion of the flammable liquids being sampled. This hazard is reduced by gentle sampling techniques and cooling the sample. The liquid sample line is cooled and the flow rate of the petroleum liquid is prevented from exceeding 1 meter per second. In addition, the liquid is flowed upward in the sample container thereby preventing flashing, agitation, and higher flow rates. For added safety, the sample container or the container and sample line may be prefilled with a noncombustible fluid. The container may also be made of metal and connected by an electrical conductor directly or indirectly to the equipment being sampled.

Abstract: Sampling mould for drawing samples of molten material from pools of molten materials, e.g. steel samples, and consisting of two parts of which at least one is provided with a recess which forms a specimen, said two parts being located and fastened to each other, and an entrance passage which through a channel permits the molten metal to flow into the recess, wherein at least one cavity, which forms a hollow of a fixed size, is provided in at least one of said two parts, said cavity or cavities being connected to the hollow forming the specimen through a channel.

Abstract: In an ultrasonic investigating apparatus a transducer can receive reflections from points in the body for which the position in one direction is relatively well known as a result of accurate range gating but for which the position in another direction is relatively less known in view of the relatively wide ultrasound beams used. Thus the reflections are only known as originating from lines in the body. These line integrals of reflection of ultrasonic energy are processed by methods appropriate to line integrals in general, as known for line integrals of X-ray absorption for example, to more accurately position the reflecting points in the body. A propagation velocity distribution can also be determined for the body to further improve the accuracy.

Abstract: An automatic base gate positioning circuit for use in rail flaw detection is disclosed which includes the generation of a string of uniformly spaced pulses corresponding to known rail depth, correlating said pulses with sonic echoes averaging and storing the correlated signals and developing a signal representing the rail depth for comparison with an echo from the rail base.

Abstract: Non-destructive testing with ultrasonic energy is performed by scanning a focused ultrasound beam until a region of interest is detected and rescanning this region with the beam focused at a plurality of depths. Apparatus for ultrasonic body scanning for medical purposes may include an actively driven transducer crystal which may be dynamically focused. A beam of energy produced by the transducer will be coupled to the patient by a liquid path and a movable mirror may be interposed along the liquid path to cause scanning of the beam.

Abstract: In order to stabilize the acoustic wave amplitude in a workpiece, where such acoustic wave is generated by a laser beam pulse transmitted upon the workpiece surface, laser pulses preceding the laser pulse used for acoustic evaluation are utilized to clean the workpiece surface from contamination. Cleaning of the workpiece surface to the bare metal provides a normalized surface condition in respect to absorbed pulsed laser beam energy and, hence, produces acoustic waves of substantially constant amplitude. Either the same laser producing the acoustic wave or a separate laser is used for vaporizing contamination at the workpiece surface where an acoustic wave is subsequently to be produced.

Abstract: A method of determining depth propagation of a defect in a body by ultrasonic materials testing wherein a first angle probe having an ultrasonic wave transmitting oscillator produces a scatter signal at structural inhomogeneities of a body formed with a defect and the scatter signal is received by an ultrasonic wave receiving oscillator of a second angle probe, which includes: transmitting an ultrasonic wave at a first angle along a first line in direction towards the defect so that the scatter signal thereat is shadowed by the defect and diminished in intensity; receiving the diminished signal from the defect at a second angle in a direction along a second line intersecting with the first line at a defect, transmitting additional ultrasonic waves and receiving diminished scatter signals along respective lines intersecting at the defect at varying depths of the body and ascertaining the depth propagation of the defect by a marked increase in intensity of the received signal when the intersection of the respec

Abstract: Apparatus is described for monitoring phase currents and torsional vibrations of a turbine-generator which are indicative of the dynamic response of the machine during operation under load. The monitoring system disclosed includes probes which are operable to sense rotation of the main shaft of the turbine-generator and to feed the resulting signals to a vibration network. The vibration network eliminates from the signals any false components present at frequencies equal to multiples of the rate of rotation of the shaft and produces a composite vibration signal containing only true components of shaft torsional vibration. The composite vibration signal and a set of three phase current signals determined by stepping down, filtering, and amplifying the generator line currents are monitored continuously but recorded only when at least one of two signals derived from selected components of the composite vibration signal and phase current signals exceeds reference levels in an alarm system included in the monitor.

Abstract: A directional device operating similar to a wind vane has a hollow vertical shaft which is journalled in a housing containing three chambers in communication. An air inlet port is located on the side of the directional vane and communicates through the hollow journalled shaft into the first chamber. A small aperture in the wall between the first and second chambers dampens the movement of the fluid flow from chamber 1 to chamber 2. A conventional baffle separates the second and third chambers and simultaneously allows fluid flow from the second to the third chamber while further damping the fluid flow to such a point that the fluid in the third chamber is substantially static. The third chamber is in communication with a differential pressure gauge which then compares the static pressure in chamber 3 with another pressure source.

Abstract: Apparatus for the retracting and extending the lens holder of a camera, which comprises two gear wheels or gearwheel segments swingably supported about fixed axes on different sides of the longitudinal central plane of the lens holder, said gear wheels or gear-wheel segments being in direct or indirect engagement with each other, two stationary toothed members, two swingable segments coupling said lens holder and said gear wheels or gear-wheel segments, said gear wheels or gear-wheel segments, when swung, being operable to retract and extend said lens holder via said swingable segments and to move said swingable segments over the toothed segments as said lens holder is extended from its fully retracted position, such that with equal paths of swing of the gear wheels or gear-wheel segments, the lens holder is displaced by a larger amount in the vicinity of the retracted position than in the vicinity of the extended position.

Abstract: The invention relates to a device for converting a rotary movement into an oscillating movement frequently employed in agricultural implements, comprising a rotatable driving shaft, a fly-wheel rigidly secured thereto, an oscillatorily driven body adapted to oscillate about an axis crossing or intersecting the driving shaft axis and a coupling element pivoted to said body and journalled eccentrically in the fly-wheel; to adjusting in a simple manner the magnitude of the oscillating movement or the amplitude thereof, the device is adapted in that the bearing of the coupling element in the fly-wheel is arranged in a displaceable manner for varying the eccentricity and hence the amplitude of the oscillatory movement.

Abstract: Disclosed herein is an electromechanical actuator which acts as an analog of a fluid operated cylinder. A tubular piston moves along the axis of a fixed outer cylinder. One end of the piston is fitted with a threaded stud to which a clevis or other load attachment device can be attached. The other end of the piston, inside the outer cylinder, is attached to a coaxial drive nut. The drive nut is threaded onto a coaxial lead screw which passes through the drive nut and clears the inside of the piston. The drive nut is notched at a plurality of locations, the notches corresponding to a plurality of axially extending protrusions on the inside of the outer cylinder. Thus, when the lead screw is rotated, translational motion is imparted to the drive nut due to its inability to rotate relative to the outer cylinder. A small bar magnet is affixed to the drive nut and cooperates with an external reed switch to provide intermediate shutoff points.

Abstract: Speed change mechanism using spaced, rotatable input and output plates, and idlers in rolling point contact with same, and having freedom to oscillate relative to their own guidance shaft about the perpendicular passing through the contact points. The connection between the idlers and the guidance shaft is by entrainment members which can be displaced along the shafts, fix the idlers to the shafts by rotation, and enable oscillating deflection of the idlers about the perpendicular.

Abstract: A belt-type speed change device having a pair of pulleys around which passes a belt. A side plate of each of the pulleys is axially movable relative to the other, fixed, side plate, thereby to provide for changes in transmission ratio. A rest position of the movable side plate of one of the pulleys, in embodiments described the driven pulley, is defined by a first abutment. The first abutment is movable between an operative position in which it is engageable by the movable side plate to define the rest position of the movable side plate and a retracted position in which the first abutment permits further axial movement of the movable side plate away from the fixed side plate to a retracted position as defined by a second or stop abutment, thereby to permit removal of the belt from the pulleys.

Abstract: An emergency stretch belt and a process for making same are described. This belt is capable of an elongation of at least 11/2 percent after vulcanization and comprises a body portion of flexible elastomeric material having a load carrying section embedded in the body portion including an undulating strength member.The belt of this invention is made by assembling a belt structure upon a forming mandrel, placing the belt structure around a curing mandrel having a smaller diameter than the diameter of the forming mandrel, and vulcanizing the belt structure to form a completed belt structure.

Abstract: An apparatus for use with a strapping machine for displacing and tensioning a strapping band about an article or the like, wherein band rolls, about which there is wrapped the strapping band, are operatively coupled with a reversible drive motor, and between the drive motor and at least one of the band rolls there is provided a speed reduction stage which is switched-on, due to the response of an overload coupling, during the rotational sense corresponding to tensioning of the strapping band. According to the invention, three successive band rolls are provided which are coupled with one another for carrying out the same peripheral rotation by means of a form-locking transmission or drive.

Abstract: A drive assembly for a cassette tape recorder having a motor driven driving pinion and an intermediate gear permanently engaged with the driving pinion and being adjustable in positions to alternatively engage a feed spool or a take up spool.

Abstract: A shifting rod is provided intergrally with a block formed thereon with two projections spaced apart from each other laterally of the shifting rod to provide a space between the projections so that it is necessary to move a gear change lever in two directions intersecting each other for axially moving the shifting rod from one of its opposite shifting positions into the other shifting position.

Abstract: A rotatable shift lever for selectively shifting a vehicle transmission by rotating the shift lever handle and pivoting the lever to selectively engage the desired gear ratio of the transmission.

Abstract: A control assembly for a vehicle transmission comprising a control member pivotable about a first axis between at least two discrete positions for selecting different drive speeds of the transmission and about a second axis between two outer positions and an intermediate position for selecting forward, reverse and neutral drive conditions respectively.