Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 4211253 | Coupling device A coupling device has two detachably connectable parts which are provided with two valves that are activated in the connected position of the parts. In said connected position, two separate channels are formed through the coupling device; the first channe... | 07/08/1980 |
| 4211254 | Normally closed pressure compensated flow control valve A fluid flow control valve assembly provides metering of the hydraulic fluid from a cylinder port at a constant desired rate for lowering a load at a corresponding constant rate which has been raised by the cylinder. The valve assembly comprises a normall... | 07/08/1980 |
| 4211255 | Slide valve A slide valve has a spool valve element that is moved unidirectionally to a sequence of three positions during its operating cycle. The valve structure and unidirectional motion of the spool provide a precompression of the fluid being handled. The valve s... | 07/08/1980 |
| 4211256 | Circulating flow hydraulic pilot system A circulating flow hydraulic pilot system supplies pressurized fluid from a source to a sump through first and second parallel disposed conduits. Selective pressurization of each conduit is achieved by a pilot valve and a fluid restrictor that are series ... | 07/08/1980 |
| 4211257 | Solenoid valve A solenoid-operated fluid control valve has an armature assembly which includes a reciprocally movable platelike magnetic valve member and a seal element loosely retained by the valve member and projecting therefrom. A magnetic core defines a fluid passag... | 07/08/1980 |
| 4211258 | Spray dampening system for offset printing with page control assembly The disclosed system controls, through novel pressure and valving adjustment mechanisms, the application of dampening fluid to the ink roll or offset plate on the plate cylinder of an offset printing press. The dampening fluid passes through a pressure co... | 07/08/1980 |
| 4211259 | Plastic tube A plastic (polyvinylchloride-PVC) pipe is provided which is shaped to receive the end of an adjacent pipe such that the two pipes may be joined together by a tight adhesive seal in a simple and expeditious manner. In accordance with the invention, an inte... | 07/08/1980 |
| 4211260 | Multilayer vessel or tube construction A multilayer vessel or tube comprises an inner core tube and a plurality of supporting layer tubes around said inner core tube which have degassing bores. A blind layer is provided between the core tube and the innermost supporting layer tube and a plural... | 07/08/1980 |
| 4211261 | Fabrics for protective garments having strands of reflective materials Protective fabrics having a reflective surface are made of textile yarns, for example of wool, intermeshed with strands of reflective material, for example a metallized plastics film, a major proportion of the textile yarns being present in one face of th... | 07/08/1980 |
| 4211263 | Dual fill rate liquid filler apparatus having a single control valve A liquid filler apparatus useful in connection with the filling of a container with a predetermined weight of liquid at a first and a second fill rate is characterized by a single control valve having either a ball-type or a butterfly-type valve element i... | 07/08/1980 |
| 4211264 | Log splitter A device for splitting logs, such as are for fireplace use, comprising a vertical post mounted on a plate, and a telescoping member slidably mounted on said post, having a wedge integral with said member, and a laterally extended plate on said member, opp... | 07/08/1980 |
| 4211265 | Log splitting apparatus A log splitting apparatus having a spiral-threaded, conical-surface splitter head is provided including a housing for supporting the splitter head in mechanically coupled, driving relationship to a power source. A log stop bar assembly is mounted on the s... | 07/08/1980 |
| 4211266 | Flexible container with discharge tube A container consisting of a flexible body, base and cover and having flexible discharge and filling tubes in the base and cover, respectively, and flaps attached to the exterior of the base; the discharge and filling tubes and flaps having releasable secu... | 07/08/1980 |
| 4211267 | Thermal insulating and cushioned bag, especially a carrying bag A thermal insulating and shock absorbant bag, particularly a carrying bag, is formed of walls each having an outer layer of thin, flexible thermoplastic foam of a thickness between the 0.07 mm and 0.14 mm, which provides effective insulating properties. T... | 07/08/1980 |
| 4211268 | Wheel A wheel has a plurality of variable length spokes extending radially from the hub to the rim and supporting the rim coaxially around the hub. Spoke length varying devices vary the lengths of the spokes.... | 07/08/1980 |
| 4211269 | Method of centrifugally casting metal under an inert atmosphere This invention relates to a method of casting metal in a rotary mould or die under the protection of an inertizing atmosphere formed by a liquefied gas. In the mould or die, successive casting operations are performed with different metals while maintaini... | 07/08/1980 |
| 4211270 | Method for continuous casting of metallic strands at exceptionally high speeds A cooled mold assembly for the continuous, high-speed casting of metallic strands, especially upcasting strands of copper alloys such as brass, has a hollow die in fluid communication with a melt typically held in a casting furnace. A coolerbody surrounds... | 07/08/1980 |
| 4211271 | Continuous casting mold geometry improvement An improvement in wheel-band type continuous metal casting machines wherein a corner filling device or material is used in combination with the mold members such as the wheel and band to modify the mold geometry so as to prevent corner cracking due to the... | 07/08/1980 |
| 4211272 | Cooling of ingots or castings Ingots or castings are supported by fairly closely spaced rollers. The resulting spaces adjacent to exposed surface portions of the ingot or casting are filled with atomized water to generate a fog or mist being retained so that as much water droplets as ... | 07/08/1980 |
| 4211273 | Arrangement at a continuous casting plant An arrangement at a continuous casting plant, in particular a continuous casting plant for slabs, includes strand guiding rollers supported by means of supporting brackets or holding means, and a strand guiding stand for bracing the holding means via load... | 07/08/1980 |
| 4211274 | Equipment for cooling and separation of castings and moulding sand An apparatus for separating castings from moulding sand is provided with a container revolving around the longitudinal horizontal or near horizontal axis. The side surface of the container is provided with suitable slots ensuring an inflow of air into thi... | 07/08/1980 |
| 4211275 | Device for continuous horizontal casting In a device for the horizontal continuous casting of ingots or billets without pronounced structure there is provided in the wall of the trough an opening which connects up with another opening in the lower part of a disc-shaped nozzle which is used to tr... | 07/08/1980 |
| 4211276 | Method of making fin elements for heat exchangers In a crossed fin-tube type heat exchanger wherein tubes are attached at right angles to a large number of fin elements arranged in parallel with one other, the surfaces of these fin elements are roughened to have an unevenness satisfying a relation where ... | 07/08/1980 |
| 4211277 | Heat exchanger having internal fittings The heat exchanger is constructed with a plurality of fittings which are disposed in the flow passage. Each fitting is constructed of at least two groups of webs with the webs of each group disposed in spaced parallel relation and in angular relation to t... | 07/08/1980 |
| 4211278 | Header structure for a panel-type radiator and method of making said structure In this panel-type radiator a pair of panels are disposed in adjacent, side-by-side relationship, and each is made of two thin dished sheets of steel. Adjacent sheets of the adjacent panels are each provided with a thin-walled embossment of generally trun... | 07/08/1980 |
| 4211279 | Plunger lift system A plunger lift system used in wells having a tubing string disposed within casing. An improved plunger catcher and trip assembly is provided within the wellhead to hold the plunger in its upper position while lift gas escapes from the tubing string throug... | 07/08/1980 |
| 4211280 | Downhole surge tools, method and apparatus Downhole method and apparatus for efficient well completions wherein natural earth energy is utilized by the exploitation of a maximum pressure differential into a given well bore. The method and tools of the apparatus function to back surge the well, enh... | 07/08/1980 |
| 4211281 | Articulated plural well deep water production system A subsea production system for handling produced well fluids from a number of individual deep water wells drilled in different parts of a field and providing the produced well fluids to a surface production platform through a central riser. The apparatus ... | 07/08/1980 |
| 4211282 | Adjustable blade stabilizer and controls An adjustable blade stabilizer and controls utilized in an earth-working machine such as a bulldozer. The blade and push arms of the machine form a U-shaped structure which is unable to adjust to substantial lateral loads imposed on the blade. The blade s... | 07/08/1980 |
| 4211283 | Soil cultivating implements A soil working member is journalled in the bottom of an elongated implement frame portion and driven to rotate about an upwardly extending axis. The member includes a horizontal support, that normally is rotated adjacent the frame portion bottom, and tine... | 07/08/1980 |
| 4211284 | Sugarcane cultivator An improved earth working implement is disclosed which is particularly suitable for surgarcane cultivation, said implement having four main pluralities of saucer shaped cultivator discs carried by a trailer, each of said pluralities being individually adj... | 07/08/1980 |
| 4211285 | Agricultural method and implement A method and implement for facilitating and fostering the germination and sprouting of seeds of row crops, particularly under encrusted soil conditions, and eliminating the need for using herbicide for most common weeds in growing row crops by covering th... | 07/08/1980 |
| 4211286 | Reversible disc plough A reversible multi-disc plow has its main frame, to which the plow beam is pivoted, connected in front by a vertical pivot to a mounting frame which made for connection to the three point lifting system of a tractor. The pivotal movement of the main frame... | 07/08/1980 |
| 4211287 | Folding tool beams with level equalizer therebetween A horizontally folding implement has a pair of tool-supporting beams that project laterally outwardly from opposite sides of the central, fore-and-aft extending frame of the implement when the beams are in their widespread, working positions. A pair of ve... | 07/08/1980 |
| 4211288 | Raisable implement frame with operably connected wheel and draft frames A foldable implement construction includes an implement tool carrying center frame pivotally connected to a draft frame and is provided with a pair of transversely extending outrigger tool sections connected on respective opposite sides of the center fram... | 07/08/1980 |
| 4211289 | Sleeve with armband A device for use in measuring blood pressure comprises a cuff which is windable around the portion of a body and a clamp fastener for maintaining the cuff in the wound position during use. The fastener has a box shaped outer part and a box shaped inner pa... | 07/08/1980 |
| 4211290 | Drilling string shock-absorbing tool A tool having a low spring rate deformable element and a relatively long stroke is provided. The deformable element comprises a stack of alternating non-deformable metal washers and deformable elastomer rings extending throughout the length of the element... | 07/08/1980 |
| 4211291 | Drill fluid powered hydraulic system A drill fluid powered hydraulic system used for driving a shaft connected to a drill bit is disclosed. The apparatus includes a hydraulic fluid powered motor actuated and controlled by hydraulic fluid. The hydraulic fluid is supplied to the hydraulic flui... | 07/08/1980 |
| 4211292 | Borehole angle control by gage corner removal effects The advancement angle of a borehole cut by a rotary drill bit of the type which forms a cylindrical sidewall, a drill face and a circumferentially extending gage corner, is controlled by removing a different amount of the gage corner material over a selec... | 07/08/1980 |
| 4211293 | Variable orifice sleeve valve hydraulic jar tool A hydraulic jarring tool includes a system for externally adjusting the orifice size of the sleeve valve flow passage. The jarring tool includes an outer member and an inner member telescopically arranged. Spline means between said outer member and said i... | 07/08/1980 |
