Quotables
"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."
Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830
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| Number | Title | Issue Date |
| 4179735 | Computer with an arrangement for changing its working environment An arrangement is disclosed which enables the variation of the working environment of a computer comprising a working memory, a central processor unit and a plurality of peripheral units including an external memory. The arrangement comprises a switch hav... | 12/18/1979 |
| 4169683 | High speed wire printing device A high-speed wire printing device wherein the wires are slidably mounted on a carriage movable in front of a recording medium and individually actuated by controlling electromagnets to print alphanumeric characters and graphic symbols on the medium in acc... | 10/02/1979 |
| 4168847 | Trailer hitch A gooseneck trailer hitch to couple a trailer torque to a towing ball mounted on a towing vehicle to be used in pulling a trailer has a tow member which is to be secured to the trailer tongue to extend generally horizontally forward of the trailer. This t... | 09/25/1979 |
| 4164271 | System for indicating stop levels for an elevator A system for indicating the stop levels for an elevator car in a hoist shaft so as to transmit signals to the elevator machinery when a selected stop level is approached. Vertically aligned pins are provided projecting from the wall of the hoist shaft; at... | 08/14/1979 |
| 4162804 | Lifting clamp A lifting clamp for articles such as steel plates has a movable arcuate gripping jaw, a pivotally mounted arcuate cam jaw, an enlarged recessed opening to receive the article to be lifted, a shackle, a linkage connecting the shackle to the gripping jaw an... | 07/31/1979 |
| 4162431 | Method and apparatus for controlling the erosion of arc producing electrodes Apparatus and process for reducing the rate of erosion of electrodes between which an arc is sustained by the provision of a field coil around the electrode which is supplied with direct current and the oscillation of that direct current supply at a frequ... | 07/24/1979 |
| 4162375 | Time-divison multiplex switching network with spatial switching stages A TDM/PCM switching network comprising a plurality of time and spatial switching circuits associated with different groups of TDM lines. The present invention is primarily concerned with the manner in which these time and spatial switching circuits are ar... | 07/24/1979 |
| 4160430 | Stratified charge internal combustion engine An internal combustion engine is disclosed having a cylinder and a reciprocating piston which, together with the cylinder head, define the boundaries of a combustion chamber. A movable septum is supported by the cylinder head adjacent the combustion chamb... | 07/10/1979 |
| 4159630 | Assembly such as for a tile chute tool for use with a ditching or trenching machine An assembly such as for a tile chute tool for laying tile, plastic pipe or the like or for a crumbing tool either of which tools is adapted to be connected to the digging boom and mobile chassis of a ditching or trenching machine by a four-bar linkage. Th... | 07/03/1979 |
| 4159097 | Tie having integrally molded sleeve A tapered tie for use in concrete form tying apparatus comprising a threaded steel rod having a longitudinally tapering protective plastic sleeve placed over the central portion thereof.... | 06/26/1979 |
| 4158123 | Series reactor An improved multiphase series reactor consisting of a number of interconnected coils, each coil being formed from sub-coil wherein the sub-coils consist of a number of laterally-spaced single-plane spirals, each spiral being formed from hollow electrical-... | 06/12/1979 |
| 4156572 | Inked ribbon cartridge for a calculating or other office machine A cartridge for the inked ribbon of a calculating or other office machine, of the type comprising a platen, a plurality of printing styli disposed in front of the platen at a short distance therefrom, a motive shaft, two fixed stops for transverse positio... | 05/29/1979 |
| 4155595 | Mining method and apparatus A continuous miner is employed in conjunction with a flume that removes the mined product from the working face. The discharge from mobile continuous miner is deposited in a sloping trough supported by the miner which is in cooperative and relatively mova... | 05/22/1979 |
| 4156290 | Speedup addressing device by detecting repetitive addressing A memory addressing device for a memory divided in a plurality of elements each storing a plurality of information words. Each address for the memory comprises a first part which controls addressing means which address all the words of the memory elements... | 05/22/1979 |
| 4155724 | Apparatus for the degasification of fluids Drilling mud degasification apparatus comprises a degassing chamber located below the level of gas-laden mud in a tank. A propeller pump causes the mud in the tank to flow through a plurality of restricted orifices in the degassing chamber at a rate faste... | 05/22/1979 |
| 4154220 | Flat-plate solar collector with air flowing through the grooves in a foam absorber surface This invention relates to a more cost effective construction of an air type flat-plate solar collector. More particularly the invention has reference to replacing the usual combination of insulation backing and a good thermally conducting metal black abso... | 05/15/1979 |
| 4153123 | Hoisting and handling device having weighing means The hoisting device has means for weighing the load and is particularly compact, simple and reliable. For this purpose a pivotal arm to which a hook is connected is adapted in such manner as to define a cylinder, a piston and a chamber filled with an inco... | 05/08/1979 |
| 4151565 | Discrimination during reading of data prerecorded in different codes A circuit for the decoding during reading of data prerecorded on a magnetic medium comprising a circuit for recognition of the recording code of the data recorded on the support by the recognition of the frequency of an input signal generated during the r... | 04/24/1979 |
| 4150352 | Precision transducer for position measurements A precision transducer for position measurements comprises a pair of supports, one of which is movable with respect to the other. Each support is provided with an electric winding constituted by equidistant serially connected printed circuit conductors ex... | 04/17/1979 |
| 4148112 | Hydraulic evisceration of mollusks The "bellies" of mollusk such as clams are removed from the remainder of the clam meat by introducing one whole clam body at a time into a fluid shearing zone where a separately introduced high velocity stream of fluid serves to shear the belly from the c... | 04/10/1979 |
| 4149225 | Frames for lanterns having a mantle A lantern frame comprising a base, a burner mounted on the base burning with an incandescent flame, a glass surrounding the burner protecting the flame, a grid surrounding the glass supported on said base operable to stabilise said glass, the base being i... | 04/10/1979 |
| 4146973 | Method and apparatus for drying veneer The method comprises feeding the veneer through a closed chamber under vacuum conditions, and heating the veneer while in the chamber by an infrared emitter. The apparatus comprises a chamber having means for feeding the veneer to, through and from the ch... | 04/03/1979 |
| 4147095 | Directional concentrated air discharge outlet A multi-louvered air discharge device for a forced air ventilation system, capable of focusing a concentrated stream of air from two discharge openings on any point along the perimeter of a hemisphere surrounding the device. The two discharge openings are... | 04/03/1979 |
| 4147438 | Serial printer for typewriters, teleprinters and data processors A serial printer comprising a character carrier having a plurality of flexible leaf springs bearing characters on the extremities thereof. A desired character is selected by positioning the corresponding leaf spring to a printing position. A pushing mecha... | 04/03/1979 |
| 4147268 | Pilfer-proof closure for containers A pilfer-proof closure for use in combination with a standard container having a threaded neck portion and a collar below said threaded portion, comprising a body having an internally threaded upper portion followed by a lower skirt portion for protecting... | 04/03/1979 |
| 4145802 | Autoadaptive tactile device for working machines An automatic industrial robot is provided with an autoadaptive tactile device connected to a tool for performing at least one operation upon a workpiece. The tool is carried by a working head including a toolholder, and control means for effecting relativ... | 03/27/1979 |
| 4146748 | Switching arrangement for pulse code modulation time division switching systems A switching arrangement for pulse code modulation (PCM) time division multiplex telecommunication switching system is described. The frame storages for incoming and outgoing directions of transmission as well as their address memories, and the crosspoint ... | 03/27/1979 |
| 4146752 | Seizing current delay circuit for the test switching means of a telecommunication switching system A switching arrangement for a telecommunication switching system having test and seizing circuits is disclosed in which test switching means for bounce-free contact operation require a seizing current rise delayed by switching means in the seizing circuit... | 03/27/1979 |
| 4143571 | Assemblies for workpiece positioning A workpiece positioning assembly for a machine tool has first and second traverses mounted perpendicular to one another. The second traverse is unsupported at its ends and mounted intermediate its ends upon the first traverse for horizontal movement in a ... | 03/13/1979 |
| 4144407 | Multiprocessor system for automatic switching of telegraphic lines A new, high capacity switching center for telegraphic lines which employs digital elements is herewith described. The system resembles a multiprocessor with hierarchical organization. The general coordinating functions of the system are carried out by a m... | 03/13/1979 |
| 4142065 | Method for bit-synchronous transmission of data A method for transmitting data in bit-synchronous fashion using a binary signal whose bit transitions appear in the middle of each bit interval is described. Signals are assigned to certain bits forming a composite signal for transmission. For the duratio... | 02/27/1979 |
| 4142244 | Programmable electronic computer In a computer, a display is controlled by a dedicated asynchronous control unit and can be selectively connected either to a program buffer or to a keyboard buffer. A special key is operable for alternately switching the display from one to another of the... | 02/27/1979 |
| 4140974 | Distortion corrector for the adaptive base band correction of a phase-modulated signal Apparatus is described for adaptively correcting distortion in phase modulation signals following demodulation. Binary signals indicating the position of a signal vector of the demodulated signal for each modulation period are formed, and from this an ind... | 02/20/1979 |
| 4138822 | Portal-type precision measuring apparatus The precision measuring apparatus comprises a portal mounted to translate on a platform and comprising two uprights supporting a first cross-piece along which runs a carriage bearing a measuring head. The weight of the carriage is unloaded through resilie... | 02/13/1979 |
| 4139888 | Autoadaptive working center for programmable automation An autoadaptive working center for programmable automation comprises at least a pair of independently programmable autoadaptive devices adapted to recognize a set of different situations of the working process for addressing a corresponding subroutine of ... | 02/13/1979 |
| 4139176 | Mold, for screw-threaded articles A mold, for screw-threaded articles, has screw-thread forming spindles rotatable by obliquely toothed gearing so as to apply axial thrust to the spindles and thus compensate for friction and adhesion in unloading of the mold.... | 02/13/1979 |
| 4139648 | Protein texturization A bland protein product having a texture and mouth feel simulating animal meat is prepared from a dough-like mixture of proteinaceous material and water. The proteinaceous material can comprise relatively low protein content blends or even single ingredie... | 02/13/1979 |
| 4137805 | Dispenser for flexible sheet material A dispenser for flexible sheet material having a reserve roll that automatically moves into the dispensing position when the dispensing roll is almost exhausted. The sides of the reserve roll guide tracks are angled inwardly to engage the reserve roll spo... | 02/06/1979 |
| 4137425 | Bialphabetic teleprinter for texts in latin and arabic characters The teleprinter is provided with a bialphabetic keyboard, for example latin and arabic, and a dot printing head controlled by two different character generating units corresponding to the two alphabets. The teleprinter is normally predisposed for one of t... | 01/30/1979 |
| 4136191 | Composition and method for treating or preventing fowl coccidiosis A composition and method for treating or preventing fowl coccidiosis, said composition comprising one or more of the macrotetrolide antibiotic substances represented by the general formula ##STR1## wherein R1, R2, R3 ... | 01/23/1979 |
