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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 4958442 | Measuring device, specifically for measuring the diameter of rolls on roll grinders For a measuring device, a boom, rotatable arm, guide arm and cross beam form a parallel crank drive which is mounted so as to be swivelable about the vertical axis of a supporting column. A clamping device for the rotatable arm makes it possible to use on... | 09/25/1990 |
| 4953389 | Captive bubble surface tensiometer A method and an apparatus for determining the surface tension between a gas and a liquid, and wherein the surface tension of a film established on the surface of a bubble in a medium may be calculated. A liquid medium such as an aqueous medium is provided... | 09/04/1990 |
| 4934400 | Irrigation control system An irrigation control system includes a soil moisture sensor (S) that controls the common lines of various irrigation valves (VA) being controlled by a conventional irrigation time based controller (TC). The sensor is in a first zone of primarily shallow ... | 06/19/1990 |
| 4934787 | Mode scrambler A mode scrambler capable of converting the mode distribution of light transmitted through an optical fiber into a stationary mode distribution. The mode scrambler comprises a plurality of cylinders arranged in a predetermined arrangement, and a step index... | 06/19/1990 |
| 4854847 | Tortilla dough forming machine A tortilla dough forming machine has a hopper, hollow extension and hollow casing mounted in a serial arrangement on a support frame. The hopper receives a mass of tortilla dough through its open top and has a dough discharge outlet. The casing is cylindr... | 08/08/1989 |
| 4834295 | Fuel atomisation and metering valve for a fuel injection device of an internal combustion engine The valve comprises a casing, a shutter member axially movable within it, a core of magnetic material also disposed within the casing, an armature fixed to the shutter member and an excitation winding disposed within a cavity of annular form defined betwe... | 05/30/1989 |
| 4824249 | Systems for the direct analysis of solid samples by atomic emission spectroscopy An analysis system for directly analyzing solid samples by atomic emission spectroscopy wherein the system includes an atomic spectral lamp (1) of the type which enables a solid sample to be analyzed to be demountably located as a cathode of the lamp (1),... | 04/25/1989 |
| 4816222 | Method and apparatus for obtaining a suspension and solution The present invention relates to a method to obtain a suspension and/or a solution of limestone powder in water. The limestone powder is placed on a grating (7) of such a mesh size that only a negligible quantity of the powder by itself passes through the... | 03/28/1989 |
| 4813490 | Soil dressing tool with tines having curved bottom edges A soil dressing implement useful as a sand trap rake, the head thereof including a transverse body portion with plurality of tines and a vane extending across the rear of the tines for the full width of the head. The tines, which are laterally spaced, hav... | 03/21/1989 |
| 4800852 | Inline counterbalance weight system for a single cylinder engine A single cylinder internal combustion engine has an inline counterbalance weight system which includes a counterbalance shaft rotatably mounted ot a crankcase and extending generally parallel to a crankshaft of the engine and transverse to and aligned wit... | 01/31/1989 |
| 4798595 | Injection device The present invention relates to an injection arrangement. This is characterized in that it comprises an injection needle (1) and a base plate (8). The needle (1) is curved so that at least one part of it exhibits a circular arc with a certain radius of c... | 01/17/1989 |
| 4783241 | Head box for a paper machine A head box has a preferably fixed flow-carrying wall (11) and a movable flow-carrying wall (13) defining a nozzle-like stock conduit (14) and an outlet slot (15). The movable wall is provided with an adjustable profile bar (35) at the stock outlet slot. F... | 11/08/1988 |
| 4781169 | Oven with radiant panel A food preparation oven comprising a plurality of radiant panel ducts which include apertures for directing streams of heated air toward a food product within the heating chamber. The radiant panels are made of highly thermal conductive aluminum and the o... | 11/01/1988 |
| 4776364 | Ball slide, specifically for pressure lines in hydropower plant The tubular rotary body of a ball slide consists of components which transverse to its longitudinal axis bear on one another and are detachably connected with one another. The rotary body is preferably split in two in its axis of rotation plane. Reinforce... | 10/11/1988 |
| 4776229 | Device for controlling the rectilinear translation of a movable member A device for controlling the rectilinear translation of a movable member, comprises a screw engaged by a nut having cooperatingly shaped thread surfaces the dimensions of which are such that there is a radial clearance between the screw and the nut and an... | 10/11/1988 |
| 4775649 | Dielectric porcelain composition A dielectric resonator to be advantageously used in 0.5-6 GHz band and having a large unloaded Q value, and adequate relative dielectric constant, a good stability of ͌f and a superior linearity of temperature characteristic of the resonance f... | 10/04/1988 |
| 4773989 | Process for the preparation of fibrous suspensions in hydrocyclones The process for cleaning fibrous suspension in a multi-stage cleaner plant, in which one part is led off from the first stage as accept and the remaining part of the first stage is further prepared in subsequent stages. The cleaners (1) of the first stage... | 09/27/1988 |
| 4773789 | Arrangement for securing a body The invention relates to an arrangement for securing a body made of an anisotropic material, the fibers of which are arranged essentially in an anticipated direction of application of a load. The arrangement consists of an outer casing made of a rigid mat... | 09/27/1988 |
| 4773371 | Override speed control having governed idle An override speed control mechanism for an internal combustion engine. The override speed control mechanism comprises an engine control lever connected to a governor control arm by means of an over-center linkage mechanism so that further rotation of the ... | 09/27/1988 |
| 4769875 | Elastic reinforced tie-down strap and method of making the same An elastic reinforced tie-down strap includes a core of nonstretchable reinforcing filament formed in a series of closed loops, and a casing of resilient stretchable material encasing the core and having a plurality of spaced anchor holes defined therein ... | 09/13/1988 |
| 4769474 | Process for purifying tryptophane A process for purifying tryptophan so as to contain almost no unreacted indole and a process for recovering unreacted indole with a very high percentage are provided, the purification process comprising passing a reaction fluid of tryptophan prepared from... | 09/06/1988 |
| 4768294 | Device for transferring a paper or board web from the press section to the dryer section of a paper machine A paper machine or similar apparatus is provided with a device for transferring a paper or board web from a press section to a dryer section on an endless, machine-wide support belt. The belt operates over a guide roll in the press section and a drying cy... | 09/06/1988 |
| 4766676 | Dryer for drying extrudable materials In a dryer for drying extrudable materials, a worm is rotatably disposed in a tubular sleeve which is equipped at its front portion with a hopper to supply extrudable materials. The worm is supported at its both ends by bearings in the sleeve or outside t... | 08/30/1988 |
| 4766272 | Sealed push button switch A sealed push button switch in which the push button is mounted at the end of a movable control member and is connected thereto by means of a self adjusting connector element; the control member is movable against the action of a spring, within a support ... | 08/23/1988 |
| 4759428 | Viscoelastic damper A viscoelastic damper which is adapted to control the vibration of a structural member, a tank, a pipe, etc. which may be caused by an earthquake or wind while producing minimum reaction force when the structural member and so on is slowly displaced as a ... | 07/26/1988 |
| 4752275 | Coupling with a hub for transmitting a torque onto a shaft A coupling for transmitting a torque from a shaft to a hub provided with an internal chamber which can be pressurized and which is relieved when a relative rotational movement takes place in relation to the shaft due to an overload and which is secured ag... | 06/21/1988 |
| 4749140 | Winding machine for winding a web slit lengthwise A winding machine for paper-core insertion is provided for the simultaneous, shaftless winding in two winding beds the strips of a web slit lengthwise. The machine has three support rollers generally arranged next to each other, and the web strips are alt... | 06/07/1988 |
| 4648942 | Paper machine A paper machine where the press section features exclusively double felt roll presses (13-16; 23-26) through which proceeds the paper web (10) to be dehydrated between two felt belts (15,16; 25, 26). The paper web (10) is constantly supported by a backing... | 03/10/1987 |
| 4642031 | Alternator-compressor construction A unitary alternator-compressor including a clutch assembly for the compressor. The clutch assembly continuously drives the alternator rotor and selectively drives the compressor crankshaft. A single bearing supports the alternator rotor. The clutch inclu... | 02/10/1987 |
| 4640237 | Four stroke piston engine A four-stroke piston engine in which air is drawn into a cylinder while rotary motion about the cylinder axis is imparted to the air. Fuel may be blown/injected into the air during its rotation in the cylinder while the fuel supply is located on the axis ... | 02/03/1987 |
| 4640669 | Rotary compressor lubrication arrangement In a rotary hermetic compressor an improved lubrication arrangement is provided for the sliding cylinder vanes. An oil pump in the lower portion of the crankshaft extends into the oil sump of the compressor. The oil pump comprises an axial aperture in the... | 02/03/1987 |
| 4639198 | Suction tube seal for a rotary compressor In a rotary hermetic compressor, a suction tube seal is provided between the cylinder and the suction tube. The suction tube end extends through the housing of the hermetic compressor and is sealingly secured thereto such as by welding. The compressor cyl... | 01/27/1987 |
| 4638580 | Publicity board with rotating prismatic members A publicity board provided with a plurality of rotatable prismatic members ounted side-by-side, each being arranged to carry portions of publicity images on its faces, and further provided with a meter for rotating the prismatic members about their respect... | 01/27/1987 |
| 4637254 | Gauge apparatus for measuring liquid levels This invention pertains to gauge apparatus for measuring liquid levels comprising an elongated electrical sensor adapted to be arranged in upright position while immersed so constructed as to have an electrical resistance which may be varied. A spherical ... | 01/20/1987 |
| 4635312 | Apparatus for cleaning containers An apparatus for cleaning containers which includes a tank for holding a cleaning fluid. A rack which includes clamps for clamping the containers to be cleaned is movable from a loading position in an upper portion of the tank by sliding engagement with a... | 01/13/1987 |
| 4632755 | Stacked filter cartridge This invention pertains to a fluid filter apparatus and more particularly to an improved fluid filter apparatus in which a plurality of disc-like filter elements or pads is preferably mounted on a perforated tubing, although, it can work without the tubin... | 12/30/1986 |
| 4601174 | Ice block making and storage system A method and apparatus for the home freezing of water in relatively large blocks for subsequent use in insulated portable ice chests for maintaining the contents cool over a period of days is disclosed and includes a plurality of support racks of truncate... | 07/22/1986 |
| 4557485 | Question and answer board game Game equipment comprising a board (1) one surface of which is marked with a game track (2, 3) made up of a set of compartments (21, 31) on which the players can move their pieces. Equipment characterized in that it also comprises a n... | 12/10/1985 |
| 4555991 | Guard-house of improved type The armoured guard-house allows one or more guards to be protected and is provided with an armoured lateral envelope provided with at least one glazed observation area or window protected by bullet-proof glass, a base and an upper closure canopy. The wind... | 12/03/1985 |
| 4501406 | Shut-off device for a fluid A shutoff device for a fluid with a body having a conduit in which, in use, the fluid flows, a plunger arranged slidingly in a seat formed in the body and provided with an end portion suited to shut off said conduit, and means controlling the movement of ... | 02/26/1985 |
