"What, sir, would you make a ship sail against the wind and currents by lighting a bonfire under her deck? I pray you, excuse me, I have not the time to listen to such nonsense."
Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 4407515 | Combined oil ring A combined oil ring comprising a steel spacer expander and two steel side rails is described, which has excellent wear resistance and can be used in, for example, an internal combustion engine. The spacer expander and the side rail have specific structure... | 10/04/1983 |
| 4304847 | Color image forming dye bleach process A color image forming process which comprises processing a photographic light-sensitive element comprising a support having thereon a layer containing imagewise distributed silver therein with an aqueous alkaline solution containing a stannous ion and in ... | 12/08/1981 |
| 4289208 | Device for controlling agricultural implements mounted on an agricultural vehicle A device for controlling an agricultural implement mounted on a tractor includes an auxiliary hydraulic jack which exerts a force on a resiliently flexible bar sufficient to limit the deformation of the bar due to reaction forces, when the implement is in... | 09/15/1981 |
| 4277744 | Apparatus for measuring electric and magnetic fields Measuring apparatus for providing a reading representing a magnetic field component or the electric field component of incident radio frequency electromagnetic radiation comprises a set of magnetic field sensors and a set of electric field sensors interch... | 07/07/1981 |
| 4274424 | Device for automatically winding a blood pressure measuring cuff A device for automatically winding a blood pressure measuring cuff around a part of the human body. The cuff comprises a flexible band having a part fixedly secured to a surrounding member adapted to receive a part of the human body. The flexible band ext... | 06/23/1981 |
| 4274817 | Rotary vane pump with inlet and discharge ports in end sealing plates A rotary pump having a housing with a cylindrical cavity and end heads at each end to form a pump cavity. A drive shaft journaled by bearings carries a rotor having a number of movable vanes. Seal plates at each end of the pump cavity to divide it into a ... | 06/23/1981 |
| 4270498 | Internal combustion engine An internal combustion engine has a fuel injector located in a side wall of each cylinder, and a combustion chamber in each cylinder formed largely by a cavity recessed in the crown of the piston, to define substantial "squish" areas between the piston cr... | 06/02/1981 |
| 4269224 | Combined fluid logic control device A fluid control device for the selective control of at least one group of three movable members each displaceable between a first working position and a second working position, and each having a rest position intermediate between the first and the second... | 05/26/1981 |
| 4265981 | Impact-resisting composites Energy absorbing composite materials for use as building elements and the manufacture of articles having fail-safe characteristics. The composite comprises a plurality of helically wrapped reinforcing filaments embedded in a matrix material.... | 05/05/1981 |
| 4264629 | Package for a sweetmeat product A package for a sticky sweetmeat product avoids contact with the consumer's fingers, when the product is being eaten, by having a base with a part which folds down to facilitate consumption, and two side panels for gripping the product when a transparent ... | 04/28/1981 |
| 4264314 | Endless power transmission belt An endless power transmission belt having a plurality of grooves which are formed in the inner surface of the belt in such a manner that the grooves extend perpendicular to the longitudinal axis of the belt, and a plurality of cogs each of which is formed... | 04/28/1981 |
| 4263999 | Devices for the automatic elimination of play in motor vehicle clutches A device which automatically eliminates play due to wear of a motor vehicle clutch by the engagement, during a working stroke, of a pawl carried by a control arm with teeth on an intermediate member and subsequent disengagement of said pawl upon return of... | 04/28/1981 |
| 4264855 | Electrical power supply equipment for motor vehicles Electrical power supply equipment for motor vehicles has a main electrical system and an auxiliary electrical system, a main battery, an auxiliary battery and an electrical generator, driven by the vehicle engine, which can be connected selectively to eit... | 04/28/1981 |
| 4263538 | Control system for an automatic machine A control system for an automatic machine or robot having an articulated arm, comprising position transducers for sensing the position of the arm, actuators for effecting displacement of the arm and a mini-processor which receives signals from the transdu... | 04/21/1981 |
| 4263534 | Single sided sustain voltage generator A singled-sided sustain voltage generator provides a 0 to 200 volt swing using only four 100 volt FET's. The output of the circuit is applied to one side of the display panel, the other side being applied to ground potential. The circuit can provide eithe... | 04/21/1981 |
| 4263641 | Reflector for lighting and/or indicator devices especially for vehicles The reflector has a transparent body in the form of a paraboloid with a light source located within the reflector along the axis of symmetry. The inner surface of the reflector has a plurality of circular ridges of generally triangular cross-section, each... | 04/21/1981 |
| 4261343 | Endoscope An air and water supplying device for an endoscope, having air supplying tubes connecting an air pump and an endoscope provided with an air and water switching valve. A water storing tank is provided with a compressed air receiving inlet and a cleaning wa... | 04/14/1981 |
| 4260953 | Automatic gain control circuit The invention relates to an automatic gain control circuit for restoring an input signal whose variable level is to be regulated throughout the whole frequency band, in particular to restore the input signal to a constant level. A gain control loop uses n... | 04/07/1981 |
| 4260049 | Devices for automatic wear compensation in motor vehicle friction clutch operating mechanisms A device which automatically compensates for wear of a motor vehicle friction clutch by the engagement, during a working stroke, of a pawl or knurled element co-operating with a locking arm, with a toothed surface or knurling on a first link, and subseque... | 04/07/1981 |
| 4260025 | Device for automatically lifting and rapidly lowering tractor implements A device for lifting an implement carried by an agricultural tractor three-point linkage has a flexible bar connected at its ends to the said lower linkage arms for rotation about a transverse axis, the reaction forces transmitted from the ground to the i... | 04/07/1981 |
| 4260024 | Device for lifting implements carried on agricultural tractors A tractor three-point linkage has a hydraulic single-acting actuator for raising lower linkage arms through a linkage including respective vertical tie rods. A flexible compensating bar is rotatably supported by two fixed brackets on the tractor, the cent... | 04/07/1981 |
| 4259864 | Weather monitoring apparatus Apparatus for monitoring weather conditions to determine when these can enable the commencement of an infection of mildew, comprising a temperature sensor producing an output signal if the temperature is above a predetermined threshold, a first rainfall s... | 04/07/1981 |
| 4258937 | Connecting device for an equipment unit suspended from a system which subjects said unit to differential movements of displacement An equipment unit such as the primary pump of a liquid metal cooled reactor is suspended from the reactor vault roof by means of complementary bearing zones formed respectively in top flanges of the pump and in stationary supporting flanges secured to the... | 03/31/1981 |
| 4256607 | Process for production of activated carbon fibers A process for producing activated carbon fibers comprising subjecting an acrylonitrile based fiber to oxidation processing in an oxidizing atmosphere at a temperature of about 200° C. to about 300° C. while applying a tension to the fiber until the amou... | 03/17/1981 |
| 4255645 | Electric cigarette-lighter device An electrical cigarette-lighter device for mounting on a vehicle dashboard has a fixed hollow body part and a removable elongate candle part normally stowed in the body part. The candle part includes an electrically-energizable burner and a surrounding ou... | 03/10/1981 |
| 4255074 | Palletizing machine A palletizing machine for stacking rows of articles in layers on a pallet, includes an entry station for accummulating a row of articles, an intermediate support for receiving from the entry station a sufficient number of rows of articles to constitute a ... | 03/10/1981 |
| 4254987 | Support structure for a motor bus A support structure of a motor bus comprises a plurality of modular cells each comprising two rectangular end frames made up of two channel section uprights and upper and lower channel section crosspieces, the channels facing axially away from the other f... | 03/10/1981 |
| 4254751 | Diesel engines A diesel engine has a transfer duct interconnecting a cylinder and a substantially toroidal precombustion chamber into which projects a fuel injector having four radially arranged, angularly equidistant nozzles, the fuel injector being coaxial with the ge... | 03/10/1981 |
| 4254672 | Control system for a stepless variable speed transmission A control system for a stepless variable speed transmission of power splitting type for use in a vehicle in which the power from an engine is transmitted with a controllable speed and wherein part of the power is converted into hydraulic power by means of... | 03/10/1981 |
| 4255314 | Method for the manufacture of a vinyl chloride copolymer solution In the manufacture of a vinyl chloride copolymer solution by dissolving in an organic solvent a vinyl chloride copolymer consisting of 50 to 90 wt % of vinyl chloride and 10 to 50 wt % of vinyl ester and having a mean polymerization degree of 100 to 800 a... | 03/10/1981 |
| 4254152 | Preserving food products A food product, such as fruit or vegetables either whole or in pieces, or in the form of a pulp, or meat in pieces, is preserved by feeding hot liquid or steam into a contained body of the product to sterilize the product. Some liquid is retained in the p... | 03/03/1981 |
| 4253429 | Piston for internal combustion engines A piston for internal combustion engines, of the type having a crown portion and a cylindrical skirt portion in the latter of which are formed thickened portions called bosses having holes for receiving the ends of a gudgeon pin by which the piston is att... | 03/03/1981 |
| 4253347 | Automatic speed ratio control system for stepless transmission of automotive vehicles An automatic speed ratio control system of the integration servo mechanism type for a stepless transmission of an automotive vehicle. Speed ratio is controlled by a hydraulic pump motor of variable displacement type, which in turn is controlled by an actu... | 03/03/1981 |
| 4253542 | Exhaust silencer for earth moving machines An exhaust silencer for an earth moving machine having an engine of about 10 liters capacity and a maximum power of about 150-160 HP has a cylindrical wall closed at opposite ends by first and second end walls and subdivided into two internal chambers by ... | 03/03/1981 |
| 4253165 | Apparatus for controlling an automatic angling machine connected to an echo sounder An angling machine is electronically controlled with a digital indication of the fishing depth by counting the number of revolutions of the winder or reel spool of the machine. The apparatus comprises a converter for connection to the transmitter and the ... | 02/24/1981 |
| 4252332 | Sealing device A pair of blocks or shell members of an appliance or the like are mated with each other, and an O-ring is fitted in an O-ring groove provided in the mating end surface of one of the shell members along the entire circumference thereof. In addition, a narr... | 02/24/1981 |
| 4250707 | Exhaust emission control system for internal combustion engines An exhaust emission control system for a spark ignition internal combustion engine comprises a first pressure sensitive valve for recycling a proportion of the exhaust gases from the exhaust to the induction when the engine is warm, being inhibited when t... | 02/17/1981 |
| 4250860 | Internal combustion engine with exhaust emission control system A spark ignition internal combustion engine having an exhaust emission control system including an air pump driven by the engine to pump fresh air directly into the exhaust duct in order to promote a further combustion of partly burnt components in the ga... | 02/17/1981 |
| 4250011 | Electrode tool for electrochemical machining An electrode tool for the electrochemical machining of metal components, such as the cavities of internal combustion engine valves, is adapted for mounting on a machine tool mandrel and comprises a shaft upon which a flexible, elongate electrode is axiall... | 02/10/1981 |
| 4249512 | Solar air and water heater A solar air and water heater comprises a solar energy collector which is crossed by a forced air flow fed by an electrically driven fan. The solar energy collector has an air inlet pipe and an air outlet pipe both connected to an air flow control device w... | 02/10/1981 |