Abstract: A transistor (20) is mounted to a plug-in socket (22) and this assembly is in turn attached by a bolted (24) connection to a heat sink (18) which is slidably inserted within a housing (16) open to a bottom side and attached to a vertical tube (10) of an electric outboard motor near the lower unit (6) thereof and has its electrical connections (22d, 22e) with a multiwire conductor (26) sealed (27) in a watertight manner, the conductor extending through an opening (10a) in the sidewall of the tube (10) to the interior of the tube for connection with an upper unit (2) of the motor, the conductor (26) and sidewall opening (10a) also being sealed (28) in a watertight manner.

Abstract: A closed-center, non load-sensing controller (15) is disclosed for use with an unequal area steering cylinder (17). The controller includes valving comprising a spool (35) and sleeve (37). The sleeve includes an annular groove (65) in communication with the inlet port (29) and cylinder ports (73,75) in communication with the opposite ends of the steering cylinder. The sleeve defines an annular leakage groove (95) which is disposed to interrupt the flow of leakage fluid from the annular groove (65) to the cylinder ports (73,75), to eliminate undesired piston rod extension. When the valving is in neutral, leakage fluid collected in the annular groove (95) is communicated through radial bore (97), axial slots (83), and annular groove (81), axial slots (91), drain bore (99), drain bore (93), and then to the system reservoir.

Abstract: An energy storage device (10) is disclosed consisting of a stretched elongated elastomeric member (16) disposed within a tubular housing (14), which elastomeric member (16) is adapted to be torsionally stressed to store energy.The elastomeric member (16) is configured in the relaxed state with a uniform diameter body section (74), and transition end sections (76, 78), attached to rigid end piece assemblies (22, 24) of a lesser diameter. The profile and deflection characteristic of the transition sections (76, 78) are such that upon stretching of the elastomeric member (16), a substantially uniform diameter assembly results, to minimize the required volume of the surrounding housing (14).Each of the transition sections (76, 78) are received within and bonded to a woven wire mesh sleeve (26, 28) having helical windings at a particular helix angle to control the deflection of the transition section.

Abstract: A method of attaching fine coil wire ends 22, 24 to terminal connectors 16, 18 wherein the terminals are rapidly heated into the red zone by common current flow therethrough from contact electrodes 26, 28 in the presence of a gaseous purge comprising a mixture of hydrogen balance argon, nitrogen, or helium while low melting temperature solder 84 is flowed onto the heated terminal for wire attachment. The gaseous purge from a nozzle 80 is maintained until the terminal has cooled sufficiently to prevent rapid atmosphere oxidation thereof.

Abstract: A mechanism (19 or 200) disposed in a torque converter housing (24) for damping torsionals in a vehicle driveline. The mechanism (19) comprises a viscous coupling (22) including a housing (64) having two sidewalls (24a, 68) defining a chamber (70) containing a viscous liquid, and a clutch member (72) disposed in the chamber for viscous clutching coaction with the housing. One of the sidewalls (24a) is defined by an end wall of the torque converter housing. The housing and clutch member are interconnected by a spring assembly (20) including flat torsion springs (61, 62) which transmit steady-state driveline torque and isolate driveline torsionals. The inner surfaces (24b, 68a) of housing (64) each include two circumferentially spaced clutching surfaces separated by the clutch member. The clutch member has oppositely facing surfaces (72b, 72c) each which include two flat circumferentially spaced clutching surfaces.

Abstract: The performance and condition of a tool, workpiece or machine tool is sensed during machining operations by securing a single or plural strain gages to the tool holder. To increase the sensitivity of the strain gages on stationary tool holders, the tool holders are contoured to provide locations of higher strain in which the strain gages are attached. A single or plural strain gages are positioned to sense the combined effect of different strains such as axial thrust and torque and are electrically connected to provide a single Wheatstone bridge output "signature" which may be monitored to detect a defective operation. In rotating tools, the single "signature" output greatly reduces the coupling equipment such as rotary transformers and also reduces the monitoring equipment. A unique arrangement of a single strain gage or alternatively a plurality of gages enables monitoring of both torque and thrust simultaneously.

Abstract: An improved supercharger or blower (10) of the Roots-type with reduced airborne noise and improved efficiency. The blower includes a housing (12) defining generally cylindrical chambers (32, 34) containing meshed lobed rotors (14, 16) having the lobes (14a, 14b, 14c, 16a, 16b, 16c) thereon formed with an end-to-end helical twist according to the relation 360.degree./2n, where n equals the number of lobes per rotor. The chambers include cylindrical wall surfaces 20a, 20b and end wall surfaces 20c, 24a which sealing cooperate with top lands (14d, 14e, 14f, 16d, 16c, 16f) of the rotor lobes and end surface (14g, 14h, 16g, 16h) of the rotor ends. Spaces (32a, 34a) between adjacent lobes of each rotor transfer volumes of low-pressure air from an inlet port (36) defined by the housing (12) to relatively high-pressure air at an outlet port (38) defined by the housing.

Abstract: A remote control circuit breaker and contactor system having at least one I/O circuit functioning as an interface between a central processing unit and a plurality of up to 32 devices such as remote circuit breakers for each I/O circuit, each remote circuit breaker having an individual electronic circuit which receives commands from the I/O circuit to turn the breaker or contactor on or off or hold and also senses the state of the breaker contacts and the control line and upon request sends back status codes which are stored in the memory in the I/O circuit to be read when desired by the central processing unit. Four-state status information is provided including open, closed, tripped and problem (low voltage, open or shorted control line). Contact state is determined by directly measuring the contact resistance in single break contacts (or solid state device contactors) or the contact voltage in double-break contacts.

Abstract: A pulse signal is received at the input of a wide band receiver. The signal is then processed through a plurality of narrow band channels. Each of the narrow band channels are compared to adjacent channels to produce a series of "ESS" curves whose amplitude is responsive to frequency of the incoming signal. The absolute magnitude of these "ESS" curves are compared one to the other to determine the greater of the relative energys in each of the narrow band channels and logic signals are produced therefrom indicative of the incoming signal frequency.

Abstract: A control system (158) for a multi-speed change gear transmission (10) of the type permitting preselection of a selected engaged gear ratio is provided. The control system includes an operator actuated selector switch (160) for selection of a desired gear ratio and providing a signal (R,F) indicative thereof, and actuation devices (166, 168, 152) for shifting the transmission into the selected gear ratio in response to said signals. Preselect prohibit valves (162, 164) are interposed the selector switch and actuation devices to block the transmittal of said signals and to maintain the transmission in the currently engaged gear ratio until operator actuation of a prohibit release switch (172) provides a signal (C) indicating operator request for execution of the preselected gear change.

Abstract: An optical inspection system (10) for deriving information from an item (12) to be inspected includes a light source (14), an optical reader (16) responsive to the light reflected from the inspected item for deriving an analog signal (83) indicative of information sensed on the inspected item, a threshold circuit (24) for setting a dynamic threshold used to convert the analog signal into a binary signal (144) indicative of the information sensed on the inspected item. The threshold circuit includes a high peak detector (100) and a low peak detector (102) responsive, respectively, to the highest peak and to the lowest peak in said analog signal for generating a high and low signal, respectively, indicative thereof. A threshold setting circuit (132) is responsive to the high signal and the low signal to set a threshold therebetween. A comparator (22) compares the analog signal with the set threshold and converts the analog signal to a binary signal indicative of the information sensed on the inspected item.

Abstract: An improved spider assembly (46) for expanding shoe drum brakes (10) of the type utilizing cantilever mounted anchor pin members (18) is provided. The anchor pin includes a pivot surface portion (62) and a slightly enlarged headed portion (66) extending from the outboard side of the spider member (14). A specially configured washer (80) is slidably received upon the pivot surface portion of the anchor pin and is of a sufficient outer diameter (82) to axially retain the brake shoe webs (26) upon the anchor pin. The washer (80) is provided with a radially extending portion (94) and an axially extending portion (84) extending from the outer periphery of the radially extending portion at a diameter (86) greater than the outer diameter (88) of the anchor pin.

Abstract: Variations of individual components are selectively assembled to satisfy specified switch characteristics and functions. A self-contained switching unit (2) comprises an actuator (8) mounted for linear reciprocal movement in a first housing (4) and having an end projecting through an end wall of the first housing, a return spring (52) biasing the actuator (8) to an extending position, and contactors (46, 48; 76, 78) positioned in pockets (8a, 8b) in the actuator (8) above and below the return spring (52) to be cammed in opposite lateral directions upon depression of the actuator (8) to bridge large-mass stationary contacts (28, 30; 32, 34, 36) positioned firmly against sidewalls of the first housing (4). Camming arrangements carry the contactors (46, 48; 76, 78) into bridging engagement with the stationary contacts (28, 30; 32, 34, 36) and render contact pressure springs (86, 90) operative after such engagement.

Abstract: A control system and programmer/timer for a microwave oven having a program cam advanced by a pawl-stepped ratchet wheel having three toothed segments, each with teeth of differing root diameter. The outer teeth provide rapid expanded scale advancement for the terminal five minutes of the cooking program and also for selected programs of five minutes or less for high-resolution switching by the program cam. The segment of teeth of intermediate root diameter provides a compressed scale slower cam advance rate for "COOK" programs of 5-35 minutes. The segment of teeth of lowest root diameter provides slow rate cam advancement for auxiliary "DELAYED START" and KEEP-WARM functions where time accuracy is not critical. The programmer/timer enables continued advancement of the program cam after time-out of the cooking program where the KEEP-WARM mode has been preselected.

Abstract: A shifting mechanism (10) for a change gear transmission is provided. The shifting mechanism includes a plurality of axially shiftable shift rails (16, 18, 20 and 22) each of which carry shift forks (24, 26, 28 and 30) for axial movement therewith. Each of the shift rails is provided with a shift notch (34) and a interlock notch (44) all of which will align when the shift rails are in the axially centered neutral positions thereof. A shift shaft-shift finger assembly (76) extends generally transversely to the shift rails and is mounted in the shift mechanism housing (12) for axial movement along and rotational movement about its axis (122). The shift shaft (84) is axially movable in the space partially defined by the peripheral surfaces of the interlock notches.

Abstract: An improved control method and control system for an automatic change gear transmission (10) driven by a throttle controlled engine (12) is provided. The control system includes a processing unit (30) for receiving inputs indicating at least throttle position (18) and engine speed (20) and for processing these inputs in accordance with a program to determine the correct engaged gear ratio and for issuing command signals to a transmission shifting mechanism (26). The processing unit includes logic rules to determine conditions of operator selected stable operating conditions and to lower the engine speeds at which upshifts are commanded in response to such determination.

Abstract: A method of monitoring the performance of a cutting tool which moves relative to a workpiece through a cycle including the steps of dividing the cycle into a plurality of increments, sensing the function of force applied to the tool during each of the increments, determining and storing the highest function of force and lowest function of force applied to the workpiece during each of the increments, setting a maximum differential function of force limit, calculating the difference between the highest and lowest function of force sensed during each increment and comparing the calculated function of force differential with the set maximum function of force differential and establishing a signal when the calculated function of force differential exceeds the set maximum differential. In the preferred embodiment, the function of force is torque.

Abstract: In an electrically controlled shift actuator (110, 120, 130) and a control system (140) therefor of the type utilizing a cam or scotch yoke flywheel adapted to move a shift member (28, 96) to a preselected one of at least two spaced-apart shift positions. In one embodiment the shift member is in a preloaded condition provided by coiled spring (84) associated with the actuator. The control system employs a circuit having a control switch (100), a first switch (108), and a second switch (112) interconnectable in such a manner that a cam (70) responsive to the rotational position of the motor is able to change the condition of the first and second switching in a prescribed manner to move the shift member. The control system preferably includes energy dissipating resistor (120) for dynamically braking the motor and speed indicator (124) when the actuator is used as a shift actuator for a vehicle.

Abstract: A tunnel diode having a generally rectangular junction area in the 10.sup.-10 to 10.sup.-11 cm.sup.2 range formed in a quasi-planar structure of a first metal, an oxide of the first metal and a second metal. The first metal may be tantalum or other similarly slow oxidizable metals. The second metal may be selected from a group also including tantalum. For a symmetrical junction, the first and second metals are the same, however, for an asymmetrical junction the first and second metals are different. To reduce the diode series electrical and thermal resistance, a gold layer is deposited over the first and second metals. The gold layer over the first metal is deposited everywhere except at or within a few microns of the junction. The device provides a small junction area and also negligible parasitic shunt capacitance which are necessary for efficient room temperature operation at frequencies in the submillimeter to optical region.