| Patent Number |
Title Of Patent |
Date Issued |
| 3984159 |
Apparatus for equalizing radial load on plurality of pivoted bearing pads |
October 5, 1976 |
| An apparatus for equalizing the radical load on the pivoted bearing pads of a journal bearing which comprises in excess of two pivoted bearing pads, say four or five pivoted bearing pads, for example.In a preferred embodiment, the total number of bearing pads is an even number (4, 6, etc |
| 3982626 |
Belt elevator for bulk material |
September 28, 1976 |
| A bulk material handling apparatus especially adapted for handling granular material wherein a pair of flexible belts are arranged about drive and idler pulleys to provide a material receiving run of one belt, a first transition zone where the pair of belts have edge-to-edge contact in a |
| 3982161 |
Time-ratio control having bidirectional speed potentiometer |
September 21, 1976 |
| A vehicle is driven by a traction motor energized by pulses of current from a battery conducted by a power switch and has forward and reverse contactors to control motor direction and a variable time-ratio control for regulating motor speed including an RC timing circuit in series with a |
| 3982083 |
Contact system for an outdoor electrical switch |
September 21, 1976 |
| Providing the contact spacer of a high voltage outdoor switch with a reduced number of inboard contacts to reduce the friction experienced in opening and closing the switch without reducing the switch rating. |
| 3981367 |
Spring trip cultivator shank assembly |
September 21, 1976 |
| A self-restoring spring trip cultivator shank assembly adapted to be supported from a mounting bracket secured to the transverse tool bar of a ground-working agricultural implement. The lower end of the cultivator shank carries a ground-working tool and the forward end extends between a |
| 3981348 |
Support and lubrication system for continuous casting machine rollers |
September 21, 1976 |
| A roller assembly for such as supporting a strand of metal cast in a continuous casting machine is disclosed as having a shaft adapted to be journaled in supporting arms at axially spaced locations along the shaft. A plurality of axially spaced bearings are mounted on the outer periphery |
| 3980237 |
Differential valve in fuel injection nozzle |
September 14, 1976 |
| A double cone differential valve in a fuel injection nozzle having a smaller included angular difference between the valve body and the valve needle above the seat seal than the included angular difference between the valve body and the valve needle below the valve seat seal to prolong |
| 3978909 |
Mold with convex sidewalls for continuous casting machines |
September 7, 1976 |
| An open ended mold for a continuous metal casting machine is disclosed having a pair of sidewalls and a pair of end walls narrower than the sidewalls, which define an open ended mold cavity. The end walls each define a convex surface with a crest extending between the open ends of th |
| 3974717 |
Four pinion differential |
August 17, 1976 |
| A four pinion differential with a one-piece housing and a differential lock to lock the differential for synchronous rotation of the side gears or differential rotation of the side gears. The pinion gears of the differential are mounted on a cross shaft and a pair of stub shafts which |
| 3973876 |
Runner hub construction for propeller type turbine |
August 10, 1976 |
| A runner hub for a propeller type hydraulic turbine wherein the hub is constructed of at least a pair of arcuate segments. When the arcuate segments are assembled together, they form a hollow hub. Turnbuckles are provided within the hub attached to opposite hub segments and are adjus |
| 3973869 |
Turbine in-take baffles |
August 10, 1976 |
| A hydraulic turbine is disclosed having wicket gate vanes which are rotatable between extreme positions to interrupt and permit the flow of water through a substantially cylindrical water passageway. In order to effectively block the flow of water through the passageway, the outer pe |
| 3972434 |
Order picker with operator's platform on the front end of the load support |
August 3, 1976 |
| In order to maximize the load carrying capability of an order picker truck, the payload is supported on a forwardly extending load support of the carriage adjacent the mast and the operator's platform is supported on the front end of the carriage load support. This arrangement keeps the |
| 3972249 |
Multiple lever control console |
August 3, 1976 |
| A control console having multiple levers rotating on a common axis with each of the levers including an arcuate segment alternately positioned between the spacers on an axial supporting structure aligned within the console housing. A lever handle extends from the arcuate segment of each |
| 3971972 |
Transistor inverter motor drive having voltage boost at low speeds |
July 27, 1976 |
| A transistor inverter drive provides variable frequency and variable voltage power to an electric motor and pulse width modulates a predetermined number of harmonic-reduced constant volt/hertz pulses per cycle of motor frequency to selectively vary the motor stator voltage so that co |
| 3968859 |
Multiple hose guide arrangement for a lift truck |
July 13, 1976 |
| A triple section mast for a lift truck is disclosed in which a single pulley carries two hydraulic supply hoses in one on top of the other relationship thereby minimizing lateral space occupied by the hoses and maximizing the visibility through the mast. The three-stage mast utilizes |
| 3967173 |
Transistor bridge inverter motor drive having reduced harmonics |
June 29, 1976 |
| A harmonic reduced pulse width modulation, variable speed transistor bridge inverter drive controls frequency and magnitude of stator voltage applied to an induction motor so as to maintain constant flux in the motor and permit maximum driving torque to be realized from the motor over a |
| 3966239 |
Release for breakaway coupling |
June 29, 1976 |
| An easy release mechanism for a breakaway hydraulic coupling. The release mechanism is mounted on a bracket with at least one coupling and includes a handle and a pivotal support for biasing the coupling to an engaging or disengaging position relative to the locking sleeve of the couplin |
| 3966070 |
Mechanism for loader bucket or forklift mast on a material handling vehicle |
June 29, 1976 |
| A mechanism on a material handling vehicle having means for interchangeably connecting an attachment to operate as a front end loader or a forklift with an extendable mast for loading and handling of material. The mechanism includes a quadrilateral linkage having means in the linkages |
| 3966020 |
Differential lubrication system |
June 29, 1976 |
| A differential having lubrication passages including flats on the shafts of the differential spider extending from externally of the differential casing through the differential pinion gears to convey lubrication to the pinion gear and shaft interface for lubrication of the differential. |
| 3964338 |
Pole unit mechanism for closing the contacts in an oil circuit breaker |
June 22, 1976 |
| A circuit breaker of the oil type having an operating mechanism for providing an improved force operation of the contact lift rod. The mechanism includes a linkage arrangement with a scissor-type toggle to provide a mechanical advantage for increasing the force for closing the contac |
| 3961546 |
Digital automatic transmission control |
June 8, 1976 |
| A digital automatic control for a change-speed transmission receives digitally coded electrical signals from a gear selector and automatically shifts transmission gears, up to the maximum speed selected, to maintain transmission speed within a range which will assure the most efficient u |
| 3961246 |
Capacitance method of monitoring insulation dryness of an electrical induction apparatus |
June 1, 1976 |
| Model insulation structure representative of the most critical insulation in a stationary induction apparatus is placed in the bottom of the oil tank and is provided with spaced conductive electrodes forming a capacitor having sufficient capacitance for measuring the dissipation or power |
| 3960286 |
Automatic overload control for a counterbalanced lift truck |
June 1, 1976 |
| When the load moment on a counterbalanced lift truck exceeds a predetermined magnitude, a blocking valve automatically prevents forward tilting of the mast and elevation of the load. The load moment is sensed by the pressure differential across the tilt jack and the blocking valve is |
| 3959890 |
Method and apparatus for adjustably feeding raw material to a preheater for a kiln |
June 1, 1976 |
| An apparatus is disclosed in which a raw material feed delivery pipe is connected to the periphery of a vertical conduit that receives gases from a rotary kiln and conducts such gases upwardly to a location where the gases are divided between a pair of cyclone gas-solids-separator heat |
| 3959667 |
Overcurrent trip device |
May 25, 1976 |
| A signal voltage level sensing circuit particularly well adapted for use in a static overcurrent trip device. An operational amplifier is utilized to sense the difference between a signal voltage and a predetermined reference voltage while another operational amplifier is the memory |
| 3959608 |
Reel arrangement for electric wiring |
May 25, 1976 |
| The operator's station of a lift truck is optionally elevatable with the carriage and the electric control interconnection between the operator's station, and the truck main frame includes a novel reel mechanism for the multiple lead electric conduit which does not use slip rings. The re |
| 3958703 |
Side loader main frame |
May 25, 1976 |
| A side loader main frame includes front and rear sections which are rigidly interconnected by a bridge to form a pocket for a laterally traversing mast. The bridge is a boxlike torque tube with openings in the laterally inner vertical wall through which transversely extending guide struc |
| 3958156 |
Vacuum interrupter metal-clad switchgear vertically elevatable within compartment |
May 18, 1976 |
| A drawout switchgear having an in-line vacuum circuit breaker carried on a truck which is insertable into a compartment of the switchgear; the truck carrying the breaker is inserted into the compartment and the truck and breaker as a unit is elevated into the connected position; in conne |
| 3957143 |
Parking brake release for transmission clutch |
May 18, 1976 |
| A vehicle control system including a hydraulically actuated transmission with a transmission control and a vehicle brake for braking the vehicle with a cutoff valve interconnected to the brake for interrupting power transmission through the transmission when the parking brake is actuated |
| 3956891 |
Closed center hydraulic system for lift trucks |
May 18, 1976 |
| A closed center hydraulic system is provided for a lift truck which includes an accumulator, a motor driven pump for supplying fluid under pressure to the accumulator, a plurality of closed center proportional electrohydraulic control valves for a plurality of hydraulically operated |
| 3953693 |
Vacuum switch with integrated capacitor shield |
April 27, 1976 |
| A vacuum switch with integrated capacitor shield comprising an evacuated insulating envelope provided with metallic end cap closures through which relative movable contact rods extend; the evacuated envelope encloses a plurality of shields which also serve as capacitor vanes permanently |
| 3952511 |
Hydrostatic drive circuit |
April 27, 1976 |
| A hydrostatic vehicle drive system having a closed loop front wheel drive circuit and a closed loop rear wheel drive circuit with bi-directional pressure compensating crossover flow between the two closed loop circuits. Another hydrostatic circuit for driving auxiliary equipment also ope |
| 3952509 |
Hydraulic system combining open center and closed center hydraulic circuits |
April 27, 1976 |
| A hydraulic system is provided in which a single variable displacement pump supplies the hydraulic fluid requirements of both an open center hydraulic circuit and a closed center hydraulic circuit. The hydraulic output from the variable displacement pump is delivered to a pressure compen |
| 3949889 |
Front end loader |
April 13, 1976 |
| A front end loader attachment utilizing front and rear supports connected to the front and intermediate parts of a tractor to which a loader frame is detachably connected. The rear support is reinforced by a longitudinally extending truss structure connected to the drawbar mounting p |
| 3949783 |
Dual Pump draft control valve |
April 13, 1976 |
| A draft control valve for use with two constant displacement pumps in an open center hydraulic system. The valve controls the implement position in response to the draft loads and manual control and normally employs pressurized fluid from a low volume pump for operating in response to |
| 3948383 |
Double belt air pressurized elevator for bulk material |
April 6, 1976 |
| In a bulk material handling apparatus, a pair of fluid impervious flexible endless belts are arranged about drive and idler pulleys to provide a material receiving run of one belt, a substantially vertical elevator or lift run or elevating section where the belts are in face-to-face cont |
| 3948039 |
Hour meter operated responsive to tachometer signal |
April 6, 1976 |
| An hour meter on a tractor for registering the operating time of the tractor connected for receiving a tachometer signal to energize the hour meter circuit and thereby register the time of engine operation of the vehicle responsive to actual operating time of the engine. |
| 3947744 |
Electric truck having elevated load potential energy recovery with means to adjust rate of carri |
March 30, 1976 |
| A lift truck energized from a battery to supply pressurized fluid to elevate a load-supporting carriage has an energy recovery system for converting kinetic energy of the elevated carriage into battery charging current including a fluid motor through which fluid from the lift ram is |
| 3946949 |
Nozzle for rotary kiln |
March 30, 1976 |
| A nozzle for use with a rotary kiln of the type used for reducing ore, such as iron ore, to a lower state of oxidation. The nozzle projects in a generally radial direction through the kiln shell to inject fluid into the interior of the rotary kiln. The nozzle comprises a gas passage for |
| 3945624 |
Reduction kiln having a controllable distribution system |
March 23, 1976 |
| A process and apparatus are disclosed for delivering fuel and air to a rotary reduction kiln wherein both the fuel and air alternately flow through the same fluid distribution nozzle. Means are provided about the kiln for operating means to alternately deliver of fuel or air through the |
| 3945475 |
Pressurized differential valve |
March 23, 1976 |
| A pressure biased control valve biased to a position for communication between a source of pressurized fluid and a differential locking clutch of the differential and a relay valve selectively positioned to interrupt communication between said control valve and differential lock clutch |
| 3945353 |
Two phase nozzle cooling system |
March 23, 1976 |
| A two phase fuel injection nozzle cooling system having a hydraulically cooled heat pipe. The heat pipe contains a hermetically sealed cooling medium which has a boiling point corresponding to the upper range of acceptable nozzle operating temperatures to transfer heat from the nozzle |
| 3945208 |
Filtration for integrated tractor hydraulic system |
March 23, 1976 |
| A hydraulic filtering and reservoir means to accommodate changing rates of hydraulic fluid flow through a variable displacement pump. A constant displacement pump and a variable displacement pump are used in the system to provide filtered pressurized fluid for hydraulic motors. |
| 3943392 |
Combination slot liner and retainer for dynamoelectric machine conductor bars |
March 9, 1976 |
| A U-shaped slot liner is provided with a porous spongy longitudinal rib on each leg. The ribs mate with complementary grooves in the dynamoelectric machine coil slot, side walls and the conductor bar side walls. When the assembled machine element is impregnated by a thermosetting liquid, |
| 3940647 |
Slot closure for dynamoelectric machine |
February 24, 1976 |
| A closure for securing conductor bars in the coil slots of a dynamoelectric machine consisting of a U-shaped clip which is inserted into the coil slots over the conductor with the legs of the clip extending between the sides of the conductor and the winding slot. Spring-like tabs which, |
| 3940239 |
Rotary reducing kiln seal |
February 24, 1976 |
| A seal is disclosed between a stationary hood and an end of a rotary kiln enclosed thereby to prevent entrance of atmospheric air or the exit of process gas. The seal includes a first annular seal ring on a flange to rotate with the kiln, and a second and nonrotating annular seal ring |
| 3938400 |
Single lever forward-reverse control |
February 17, 1976 |
| The forward and reverse directions of a motorized walk-behind vehicle are controlled by a walking operator through a control linkage which includes a lever pivoted on the control handle which the operator grips during operation of the vehicle. The control lever has two grip portions whic |
| 3935866 |
Grain loss monitor |
February 3, 1976 |
| A grain loss monitor for a combine harvester derives a grain loss rate signal in accordance with the number of grains impinging on a transducer and a ground speed signal proportional to the ground speed of the combine and divides the former by the latter to derive an analog of grain loss |
| 3934454 |
Gas conditioner and analyzer |
January 27, 1976 |
| A portable unit to maintain the dielectric integrity of the sulfur hexafluoride gas of a gas insulated metal-clad substation system without taking the substation out of service. The gas conditioner and analyzer provides the means for achieving the required control of the insulating g |
| 3933313 |
Spray tubing within a rotating drum supported independently of the drum |
January 20, 1976 |
| A detachable mounting and support arrangement for the stationary spray tube which extends through a rotary drum. A tension cable extends through the spray tube and is anchored exteriorly of the drum and spray tube at each end of the drum. |
