Abstract: An electronic timepiece circuit for automatically changing the day of the week by utilizing the timekeeping signals produced by the day counter, month counter and year counter is provided. Remainder circuitry is coupled to the respective day, minute and year counters and is adapted to sum bit signals representative of the binary count of the respective day, month and year counters and divide the summed bit signals by a count of seven and thereby produce a remainder signal. The remainder signal is applied to appropriate decoding and display circuitry to effect a display of the day of the week in response to the remainder signal applied thereto.

Abstract: A first contact arm on the minute shaft of a clockwork switches, once every 0 minutes, the mode of energization of an electronic gating circuit with two sections in the inputs of an inverting anticoincidence (NOXOR) gate working into a setting input of a flip-flop which controls the driving circuit of a striking mechanism, each section having two parallel branches of relatively inverting character and with a relative phase delay whereby any switchover results in a brief de-energization of that setting input and thus in a setting of the flip-flop. A pulse generator, included in or energized by the driving circuit, works into a stepping input of a binary pulse counter provided with four output leads whose pattern of energization represents the numerical values from 1 through 12.

Abstract: A buzzer mechanism for an alarm clock or the like comprises a vibrator member rockably supported on a base plate for angular movement between an inactive position and an active position in which a vibration arm of the vibrator faces a buzzer yoke associated with the alternating driving coil of the clock so as to be vibrated. A coil spring presses the vibrator member against the base plate and also biases it toward active position. A projection on the vibrator member engages the hour wheel so that when the hour wheel is moved axially upon a projection on the hour wheel coming into registry with a hole in an unlocking drum, the vibrator member is permitted to rock to active position. An alarm stop lever is operable manually to return the vibrator member to inactive position.

Abstract: A supporting structure for a quartz oscillator having terminal pins extending from one end portion of the oscillator in an electronic timepiece having a circuit substrate supporting the one end portion of the oscillator by means of the terminal pins connected thereto, which supporting structure comprises a flat portion held between the quartz oscillator, connected to the circuit substrate, and the circuit substrate, a vertical projection extending from the flat portion and engaging the outer periphery of the quartz oscillator, and at least one hook portion extending from the flat portion and engaging the flange of the quartz oscillator at another end thereof.

Abstract: An electronic timepiece having a main oscillator circuit including a first quartz crystal vibrator as a time standard and also having a secondary oscillator circuit including a further quartz crystal vibrator as a time standard for reducing the affect of temperature on the accuracy of the timepiece by utilizing the different temperature characteristics of the respective time standards is provided. The main oscillator circuit produces a high frequency time standard signal having a first frequency rate that is determined, at least in part, by the temperature characteristic of the first time standard, which characteristic includes an inflection peak at a specific temperature. The second oscillator circuit produces a second high frequency time standard signal having a second predetermined frequency, determined, at least in part, by the temperature characteristic of the second time standard being distinct from that of the first time standard.

Abstract: A gas turbine power generating system comprising, in the preferred embodiment, three gas turbine engines in series-connected flow communication employing high pressure hydrogen and oxygen as the fuel. Pre-heated pressurized steam (or a steam and water mixture) is fed to the initial gas turbine combustor for combustion coolant. Steam, consisting of the products of combustion plus the vaporized coolant, is exhausted from the first turbine into the combustor of the next turbine for re-heating via the combustion therein of the high pressure hydrogen and oxygen. The exhaust steam from the intermediate turbine is in turn re-heated in the combustor of the final turbine. The final exhaust steam is then passed through a recuperative heat exchanger to pre-heat the pressurized cooling water so that, when injected into the first combustor, it is vaporized prior to entering the first turbine.

Abstract: A gas turbine engine has a rotatable drum within which a bed of articles is supported. A compressor of the engine feeds compressed air into the drum to fluidize the bed. Powdered coal is fed into the drum to burn in the bed and the hot products of combustion pass through cyclones to the power turbine. The drum has a solids outlet through which excess particles are discharged from the bed.

Abstract: A rocket motor grain consisting of a one-piece solid base propellant divided into an aft end section having a central cavity extending throughout its length, a forward end section having a central longitudinal cavity filled with a propellant having a substantially higher burning rate than the base propellant and a central web section being defined between the forward and aft end sections. This radial end burning rocket motor grain provides a means for utilizing high energy and high density propellants which have high burning rates in a manner such that the burning rate effects can be offset to provide enhanced motor performance without the sacrifice of high energy. After initiation of the rocket motor grain, the aft end section and central web section begin burning together to provide the desired mass flow rate, followed by initiation of a higher burning rate propellant in the forward section.

Abstract: Above a selected temperature the amount of fuel supplied into the air stream inducted into the combustion chamber is controlled so that the resulting air-fuel mixtures cause exhaust gases having air-fuel ratios of 145:1 to 15.5:1 whereby neither hydrogen sulfide nor sulfuric acid mist is formed in an oxidation type catalytic converter.

Abstract: An exhaust gas purifying system for automobile engines or like engines of the type injecting a secondary air for burning the unburned part of the exhaust gases produced in an engine and more particularly an improved purifying system of the type whereby the injection is automatically cut off especially when the engine speed is rapidly decelerated, accelerated, or the engine runs under high loads, in which an air injection conduit is closed by the action of a valve which is actuated by detecting a drop or decrease in a suction vacuum in the engine as the engine is increasing its speed or is running under high loads, and is closed by the action of the aforementioned valve which is actuated under the action of a valve which is operable in response to rapid increases the suction vacuum suffers as the engine speed is rapidly diminishing.

Abstract: A master cylinder including a housing, a cylinder defined in the housing, a piston slidably fitted in the cylinder, a spring urging the piston toward an open end of the cylinder, a push rod for actuating the piston against the force of the spring to compress hydraulic fluid in the cylinder, and a stopper ring retained in the open end of the cylinder for abutting with the push rod to define the non-actuated position of the piston, wherein a seal is disposed between the inner periphery of the cylinder and the stopper ring and between the stopper ring and the push rod when the piston is in its non-actuated position.

Abstract: An arrangement for controlling the power output of a closed cycle type of thermodynamic system including shaft-coupled compressor and gas turbine components driving a load such as an electrical generator in which the gaseous working medium flows in a closed circulation system that includes a device for imparting heat to the gas and a storage tank for the gas connected in parallel with a section of the gas circulation system. In order to vary the power output, gas from the circulation system in a cold or hot state, respectively, is flowed through the tank for heat exchange with the gas in the tank such that as a result of the corresponding change produced in the density of the gas within the tank, gas is selectively withdrawn from or delivered into the circulation system.

Abstract: An internal combustion-electric motor hybrid power plant for an automotive vehicle. The power plant includes an internal combustion engine and a direct current electric motor generator which are connected to a drive shaft for the vehicle. A clutch mechanism is provided to connect the internal combustion engine, the direct current electric motor generator and the drive shaft for selectively engaging and disengaging the drive shaft with the internal combustion engine and the motor generator. A storage battery is electrically connected to the motor generator to supply current to and receive current therefrom. Thermoelectric semi-conductors are arranged to be heated by the waste heat of the internal combustion engine. These thermoelectric semi-conductors are electrically connected to the battery to supply current thereto.

Abstract: Method and apparatus are described for producing underground installations of concrete pipe, in which a shaft is sunk into the ground at each of two spaced locations between which the concrete pipe is to be installed, an annular slipform-shield is disposed in one shaft, holes are bored through the ground from the other shaft to the slipform-shield, and cables are passed through the holes and are attached to the slipform-shield. The cables are then used for pulling the slipform-shield towards the other shaft while concrete is simultaneously fed to the trailing section of the slipform-shield to thereby fill the resulting void by a cast tubular layer of concrete embedded in and supported by the ground. After the cast concrete has set as a hardened tubular layer, the soil from within it may be removed.

Abstract: A double door combination refrigerator freezer is provided and includes electrical refrigerating apparatus for maintaining the food and freezer compartment thereof cool. The food and freezer compartment doors each include a temperature indicating structure for indicating the internal temperature of the corresponding compartment as well as an adjustable electo-thermocouple for controlling the operation of the electrical refrigerating apparatus in a manner to vary the temperature in the corresponding compartment. The electro-thermocouples are electrically connected to the controlling circuitry for the electrical refrigerating apparatus by means of corresponding door and cabinet circuitry connected in series by means of corresponding coacting door and cabinet door jamb compression switch structure.

Abstract: A heat-actuated heat pump is disclosed having liquid pistons which displace the working gas and transmit power between expanding gas and compressing gas. Power output from expanding sections is transmitted to compressing sections without intervening mechanical shafts or levers, and the phasing of the various pistons is self-regulated, thereby eliminating the need for phase control mechanisms, such as crankshafts. The engine and heat pump operate in a thermally regenerated cycle without valves, closely approximating a Stirling cycle.

Abstract: A multiple stage cryogenic vacuum pump is disclosed for transferring matter or species between a gas and a vacuum chamber. The vacuum chamber has an orifice through which the matter or species moves and through which some of the gas leaks into the chamber. The chamber also has an interior surface which is spaced from the path of movement of the matter or species and encircles such path, and an internal divider extending to a position adjacent the interior surface and dividing the chamber into a first region adjacent the orifice and a second region downstream from the first region, with the interior surface extending in both regions. The surface is cooled by a single refrigerating device to below the condensation temperature of the gas, to produce a pressure below atmospheric in the first region and a lower pressure in the second region. The divider contains an aperture through which the matter or species travels and may itself be cooled to precool gas contacting it.

Abstract: An improved defroster arrangement for a known refrigerating showcase which is provided with an inside duct for circulating a refrigerated air flow to refrigerate the interior of the showcase and an outside duct for circulating a low temperature air flow to prevent a temperature rise of the refrigerated air flow. The improvements exist in the provision of a communication passage between the inside and outside ducts, and a gate for opening and closing the communication passage. During defrosting, the gate is actuated to communicate the inside and outside ducts with each other through the communication passage and also to block the path through the outside duct between the communication passage and an intake port. In this manner only the air circulating through the inside duct upstream of the gate and through both the inside and outside ducts downstream of the gate is driven by means of fans disposed within the inside and outside ducts, respectively.

Abstract: A capillary tube of long length insertable into a distal end of a process tube from a compressor of a refrigeration unit has a Schraeder fitting attached to a distal end of the capillary tube to charge the compressor, after charging the compressor the proximal tip of the capillary tube can be cut from the capillary tube and fitting and the capillary tube tip can be inserted into a swage block which forms a capillary sealing anvil and a handle with a threaded shaft and capillary tip sealing tip can be threaded into a perpendicular shaftway to seal the capillary, thus reducing the number of fittings that a refrigeration unit compressor charger must carry from refrigeration unit to refrigeration unit.

Abstract: An earring has two transparent enclosures, each shaped as half a dog bone. Each of the enclosures has a cavity with a colored liquid therein. Caps at the open ends of the enclosures seal the liquids therein. A shank extending from one of the caps has an internally threaded axial bore formed therein and threadedly coupleable with an externally threaded shank extending from the other cap so that the earring is securable to a pierced ear.

Abstract: A torsional vibration damper for a torque converter lock-up clutch having viscous and spring-damping characteristics during the initial relative movement between the input and output members of the clutch and a spring-damping characteristic during further relative movement. Viscous damping can also be provided during the further relative movement, if desired.

Abstract: A locking device is disclosed which comprises a multi-leaved key which is adapted to be inserted within a correspondingly configured keyhole provided within an inner cylinder member. The inner cylinder member is slidably disposed within an outer cylinder member so as to permit or prevent rotation of the inner cylinder member with respect to the outer cylinder member through the interaction between a projection member and a slot or groove respectively provided upon the inner and outer cylinder members, as well as to permit or prevent the inner cylinder member from being engaged with a cam member which is operatively associated wih a lock bolt.

Abstract: A detector lock assembly comprising a cylinder body having a spaced apart front and rear end with a bore therein extending along an axis and a plug rotatable in the bore on the axis with means defining a keyway in the plug and adapted to receive therein a key of a defined length and configuration to permit rotation of the plug relative to said cylinder body. Detection means is operatively associated with the cylinder body at the rear end thereof so as to establish an electrical circuit when a key or other object is inserted within the keyway that has a length that is less or greater than the defined length for the key.

Abstract: A computer-controlled hydraulic press brake includes an actuator and control system which automatically provides variable pre-programmable ram opening and closing strokes. A microprocessor within the control system responds to stroke parameters entered by the operator and an encoder-generated signal indicative of ram position to generate a velocity command signal defining a velocity profile for positioning the ram to the stroke limits. Closed-loop servo systems associated with each ram cylinder respond to the velocity command signal to cause movement of the ram in accordance with the velocity profile. A ram leveling circuit responsive to individual position sensors associated with respective sides of the ram compensates for ram tilt by simultaneously applying complimentary correction signals to the respective servo systems. A second velocity profile may be generated in response to stored parameters to position a back gauge concurrently with ram movement by means of a second motor drive servo system.

Abstract: Articles made of ferrous, non-ferrous and light metals and alloys thereof, e.g., aluminum, beryllium, magnesium, molybdenum, steel, tantalum, titanium, tungsten, vanadium and zinc and their alloys, are pretreated before coating and surface finishing in an anhydrous, inert, aprotic liquid, and subsequently electroplated with aluminum, cadmium, indium or zinc in an aprotic organo-metal electrolyte essentially free of molecular oxygen and water and, optionally, additionally finished by anodizing, chemical oxidation or diffusion. The pretreatment may be by erosion with finely-divided abrasive particles suspended in such liquid and impinged upon the surface of the article by hydraulic jetting, or with an aprotic liquid by the liquid-drop erosion method. Alternatively, the pretreatment may be by electrolytic action in a circuit where the article serves as the anode and is immersed in an anhydrous, aprotic electrolyte.

Abstract: A reverse bending tool for bending a workpiece bent at a right angle to a reverse curve has a support angle iron and a guide angle iron forming an enclosed space of rectangular cross-section therebetween and extending along the lengths thereof. A shaping member is secured in the space between the support and guide angle irons. The workpiece is drawn between the shaping member and inner surfaces of plates of the support and guide angle irons.

Abstract: A roll stand for horizontally journalled contoured rolls is constructed to have two windows, through one of these windows driving engagement is made to the rolls and through the other one two subassemblies may be inserted or removed together from the stand. Each subassembly includes a pair of mounting blocks, a shaft and a roll on the shaft. The two subassemblies are axially locked together and/or independently to the stand, while one rests on the other or is suspended from adjustment spindles. The two subassemblies are removed from the stand together by a lifting fork, requiring only that the connection to the stand be released but leaving the two subassemblies interconnected.

Abstract: A method and apparatus for improving the interior or exterior surface smoothness of a tube shell during cold draw operations is disclosed wherein the final reduction of the tube shell is completed within the die land.

Abstract: A process and apparatus for making a drawn and ironed container from a circular blank is disclosed herein. The process contemplates flowing a fluid medium through the punch of a drawing and ironing machine and maintaining the fluid medium at a predetermined temperature above the initial ambient temperature of a cup that is converted into a drawn and ironed container. The process also includes cooling the ironing dies by flowing a liquid through grooves located in the rings of the dies and the rings are made of tungsten carbide. The grooves in the ironing dies are non-radial with respect to the center of the opening in the ring so that the fluid has a tangential component of flow and flows in a generally circular pattern within the peripheral confines of the die opening.

Abstract: This case discloses a forging press having a pump ram inserted into the upper part of a cylinder within a frame, a press ram into the lower part thereof, and a cavity filled with working oil provided between both parts of the cylinder for transmitting the mechanically given reciprocating motion of the pump ram to the press ram by the working oil, said forging press comprising a stopper provided outside the frame for mechanically controlling the upper limit position in reciprocating motion of the press ram and enabling an adjustment of the position where the stopper and corresponding portion of the press ram come into contact with each other, from outside during operating the press, wherein a controllable check valve for open-and-close operation is provided in the middle of oil passage which communicates with working oil supply source and working oil in the cylinder, for feeding or discharging oil into or from the supply source therethrough according to shortage or excess of oil quantity in the cylinder result

Abstract: A pull clamp is provided for attaching to sheet metal flanges for transmission of pulling forces to the sheet metal, particularly in collision repair operations. The clamp comprises a pair of opposed clamping jaws adapted to be tightened against each other by bolts and have at one end opposite clamping surfaces for engagement with the sheet metal flange, the jaws furthermore enclosing a connecting member for coupling to a pulling means, said member including a conical wedge element for exerting a spreading-apart action of the inner surfaces of the jaws and hence through the bolts increase the clamping force between the clamping surfaces of the jaws in proportion to the pull of the pulling means.

Abstract: In apparatus for analyzing the exhaust gas of a motor vehicle, the apparatus including an oxygen sensor and means for sampling a portion of the exhaust gas and conducting the sample to the sensor, there is disclosed an improvement wherein the exhaust gas is used to heat a moisture barrier and the oxygen sensor and is then cooled before being directed through the moisture barrier to the sensitive area of the oxygen sensor. This arrangement prevents moisture from condensing on the sensitive area of the oxygen sensor, which moisture would interfere with the operation of the sensor.

Abstract: Method of determining the pore water pressure in a soil, which includes installing a water-filled tube bearing a pore pressure sound at its lower end and said pore pressure sound bearing a filter through which the pore pressure in the soil is conveyed; lowering a measuring device down the tube and connecting it to the pore pressure sound; taking a reading which represents the pore pressure in the soil; disconnecting said measuring device from the pore water sound and then taking a reading which represents the water pressure in the tube; and calculating the pore pressure by comparison of the readings for the pore water pressure and the water pressure in the tube. A device for determining the pore water pressure is also provided.

Abstract: Apparatus for discarding leaky packages from a row of filled sealed packages on a conveyor belt comprising means for exerting pressure on the packages while on the belt and means for removing packages from the belt which appear to be leaky when subjected to said pressure, wherein said means for exerting pressure comprises the conveyor belt and a member located above said belt that in cooperation exert pressure on a package on the belt, either one of said member or belt being movable with respect to the other and the smallest distance between said belt and said member being chosen so that only a tight package is clamped therebetween while a leaky package is not, and said means for removing the leaky packages comprises a nozzle that blows air agains the packages in the space between said belt and member, whereby unclamped leaky packages will be removed from the conveyor belt.

Abstract: An apparatus for measuring the viscosity or consistency of fluids, such as liquids, emulsions and suspensions, comprises a hydraulic pressure sensor, such as a pressure transducer, and an impeller rotating in front of the sensor so as to produce a periodically varying flow of fluid in a direction towards the sensor.

Abstract: Consistency transmitters are described in which a torsional transducer is used as a flexural mount for a consistency sensor. A torsional force balance loop, in which signals from the transducer operates a torque motor to balance the torsional forces on the transducer corresponding to consistency, provides for instantaneous and continuous measurement of consistency.

Abstract: A thromboelastographic apparatus comprises a body suspended to a resilient tape and immersed in operation in a liquid to be studied. The liquid is received in a receptacle which is oscillated about the axis of the tape with a predetermined frequency and amplitude. The amount of oscillatory movement impressed to the body is measured by induction.

Abstract: A method for evaluating foam-producing surfactants by measuring the resistance to the flow of a gas, for example, nitrogen, through a standard sand pack containing a solution of the surfactant. The resistance is also measured when the sand pack contains water, thereby allowing the surfactant solution's resistance factor to be determined. The resistance factor for a surfactant solution is defined as the ratio of the maximum pressure drop observed across the sand pack when the pore space was filled with the surfactant foam to the maximum pressure drop when the sand pack was filled with water and was being displaced by a gas flow.

Abstract: First and second tractor assemblies apply a preset tension to incremental lengths of fiber which moves continuously through the apparatus. The apparatus performs the functions of fiber pulling and non-destructive testing of all of the fiber. Each tractor assembly includes a tractor wheel and belt wheels. A belt extends around the belt wheels and engages the tractor wheel in an arc. The fiber passes between the belt and the tractor wheel in this arc. The second tractor assembly has a constant torque drive with an unloaded speed which is faster than that of the first tractor assembly. The second tractor assembly pulls the fiber thereby reducing the speed by causing the constant torque device to overload and slip.

Abstract: A column type bonded strain gage load cell having improved linearity and output is achieved using a column having a pair of opposed transverse bores which create a web therebetween. The web has a relatively high strain as compared to the circumferential strain of an unbored column. Strain gages bonded to the web, in combination with strain gages bonded at selected regions on the column provide improved linearity and increased output.

Abstract: A thermistor temperature sensing system includes a conventional comparator having a constant reference threshold voltage and a linearized thermistor sensor which in combination detect a limited range of desirable temperatures. A means is also disclosed for extending the linearization of the thermistor in a piecewise manner at at least one temperature extreme where linearity typically severely deteriorates. In a thermistor temperature sensing system, linearization of thermistor characteristics with respect to at least one temperature within the temperature extreme is achieved by utilizing circuitry which makes the threshold voltage of the conventional comparator a function of the setting of a potentiometer for a desired temperature within the temperature extreme to be sensed by a thermistor sensor.

Abstract: A ceramic body has an inlet duct, a mixing chamber for mixing the sampled steel with a steel killing agent; an outlet duct beginning next to the inlet duct port in the lower half of the mixing chamber, leads to a sampling chamber for a pin-shaped sample and is, in turn, connected to a vented chamber for a disk sample.

Abstract: A method and apparatus are provided for measuring torsional vibrations of a rotating member by sensing passage of a plurality of circumferentially spaced elements adapted for movement with the member and for producing an electrical signal including true components representing the torsional vibrations and from which selected false components representing inhomogeneities in the elements have been eliminated.

Abstract: A method and apparatus for measuring the surface temperature of a glass ampul which allows for the temperature to be determined as a function of time. The apparatus utilized is a thermocouple with the lead wires directly secured to the inside or outside surface of the glass ampul. Contact is assured by utilizing a high-temperature-resistive cement to secure the measuring function to the glass surface. To assure accurate temperature measurement, the lead wires are of a thin type and are uninsulated. The thermocouple wires opposite their junction are secured to a connector and ultimately to a thermocouple amplifier. If desired, a recorder is operatively connected to the amplifier. The temperature measuring apparatus allows for a constant temperature reading as the ampul is sterilized in a sterilizer and thus assures that complete sterilization is effected.

Abstract: This box type belt adjuster includes a box open at least at one end so as to form a passage therein for a belt or other webbing around a cam which latter is supported on a transverse shaft in the box. A snap-on cap covers the inner end of the passage and encloses a space for a yoke engaging the cam for turning it in the passage. The height of the passage and the distance between the risers of the cam are so related that when the cam is turned to move the risers toward the opposite top and bottom of the passage the clearance is slightly less than the thickness of the belt or webbing whereby when the cam is so turned the belt is jammed between the top and bottom of the passage and the risers of the cam. A manipulating extension extends from the lever to the outside of the cap for turning the cam in a direction to increase the clearance between the risers and the respective sides of the passage.

Abstract: A sprocket for use with positive drive belts of the type with oppositely facing curvilinear driving surfaces, the sprocket having improved symmetrical teeth with a cross-section profile defined by axially oriented, oppositely facing driving surface portions that extend from the top land of the tooth at an angle of about 15 degrees or less to the sprocket tooth, each driving surface of the sprocket tooth blending into an oppositely facing oblique surface at an angle of about 150 to about 170 degrees that provides a positive clearance between the sprocket tooth and side portions of a meshing belt tooth to direct egress of material away from the sprocket, the oblique surfaces define a sprocket tooth base that is wider than the sprocket tooth top land and bottom land portions between sprocket teeth providing positive clearance between the bottom land portions and belt tooth tips.

Abstract: Ball nut and screw are grooved to form helical race for an endless train of balls that circulate through the assembly. Leading and trailing turns of the race are connected by a return passage which includes an intermediate passage extending longitudinally of the nut. Special guide tracks in end sections of the ball nut have radially relieved paths, which allow high speed balls acted upon by centrifugal forces to travel along the outer surface thereof to avoid mechanical pick up to provide for smooth vibration-free linear movement of the ball nut along the rotating screw.

Abstract: A worm and worm-rack combination with hydrostatic lubrication therebetween. The teeth of the worm and the worm-rack have a trapezoidal cross-section and lubricating oil is supplied through openings in the toothed flanks. The half angle formed between each of the toothed flanks and the line of action to the axis of the worm is limited solely to the range of 6 to 10 degrees and the lead angle is in the range of 2 to 10 degrees.

Abstract: A fishing reel with an automatic transmission which causes the spool to turn between a one to one speed ratio with the handle to a three to one speed ratio. This is accomplished by an automatic transmission and associated clutch and brake elements.

Abstract: An overdrive device including an input shaft coupled to a fluid-coupling type torque converter, an output shaft coupled to a plurality of auxiliary transmissions each having one or more reduction gear ratios, and planet pinions which are supported by pinion shafts through the medium of two or more needle bearings positioned in a side-by-side relationship in the axial direction of the pinion shafts thereon, and maintained in mesh with a sun gear and a ring gear. The pinion shafts include lubricating oil passages running therethrough, respectively, thereby feeding lubricating oil to the needle bearings at a given pressure. The overdrive device is positioned between the fluid-coupling type torque converter and the auxiliary transmission, so that the size of the automatic transmission is reduced.