"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 4138176 | Drawer mounting arrangement A drawer mounting arrangement of the type which includes a pair of slider elements mounted on the drawer and a pair of rail elements mounted on the drawer frame for slidably supporting the slider elements. A first of the elements has a pair of longitudina... | 02/06/1979 |
| 4131356 | Sheet film processor A film processor of the type which includes a sheet transport having a finger pushing the rear edge of the film sheet while edge guides guide the edges of the film along a path that leads down into each of a series of tanks and up out of each tank in a lo... | 12/26/1978 |
| 4124827 | Variable sinusoidal oscillator A variable sinusoidal oscillator comprised of an operational amplifier connected in a unity-gain configuration, with a positive-feedback capacitor connected between the output and the noninverting input of the amplifier, and a resistor between the noninve... | 11/07/1978 |
| 4124119 | Automobile carrier for use on air cargo pallets An automobile carrier is disclosed for use on two standard air cargo pallets to carry four automobiles. The carrier for two automobiles is affixed across two pallets with one automobile over the other, and the carrier for the other two automobiles is affi... | 11/07/1978 |
| 4121940 | Endodontic formula for treatment of root canal An endodontic formula for continuous medication of root canals is provided comprising zinc oxide, titanium oxide, paraformaldehyde, vitreous carbon, hydrocortisone, and prednisolone, all of which may be mixed with a eugenol liquid for filling the root can... | 10/24/1978 |
| 4121784 | Leader to hub locking device Apparatus for installing a tape leader on a hub, including a resilient locking member which can be projected into an undercut slot in the hub to press in a portion of the tape leader and lock it therein. A punch moves the locking member towards the hub sl... | 10/24/1978 |
| 4121517 | Type bearing band assembly A type bearing band assembly for use in a high speed impact printer comprising a flexible band having a plurality of cylindrical slugs secured to the band outer surface and extending across the width thereof. Each slug has end faces which open into bores ... | 10/24/1978 |
| 4121308 | Water closet water saving device There is disclosed a water closet water saving device comprising a container consisting of flexible material and having one or more accordion-like pleats formed in the wall of the container. The pleats enable recoverable compression of the container along... | 10/24/1978 |
| 4120531 | Vehicle chair and seat belt arrangement for chair A chair for a recreation vehicle or the like, wherein the chair must be allowed to swivel at least when the vehicle is stationary, and yet where the chair must be provided with a seat belt that is kept handy for use. The chair includes a pedestal with a r... | 10/17/1978 |
| 4120012 | Diskette door Magnetic recording media called diskettes comprise a flexible magnetic disk which is enclosed in a jacket. The jacket has at least two openings therethrough. One of them is at the center on each side to enable the diskette to be engaged by a hub for rotat... | 10/10/1978 |
| 4119174 | Engine muffler An engine muffler which includes a chamber divided into two balanced sections, an inlet pipe that extends through a first chamber into the second, and a transfer tube for carrying exhaust gas from the second chamber to the first. A spark arrester at the e... | 10/10/1978 |
| 4119029 | Molded character belt with integral sleeves A character belt for use in a high speed impact printer comprises an endless band having an outer surface on which equally spaced cylindrical sleeves are formed so as to surround central portions of cylindrical slugs extending across the width of the band... | 10/10/1978 |
| 4119007 | Pressure transducer for musical instruments A pressure transducer comprised of a piezoresistance bridge on a semiconductor chip is employed as a pressure sensor in musical instruments having an air column through which pressure variations pass in producing sounds, such as in wind instruments and dr... | 10/10/1978 |
| 4118427 | Curable liquid hydrocarbon prepolymers containing hydroxyl groups and process for producing same Production of hydroxyl-containing curable liquid hydrocarbon prepolymers by ozonizing a high molecular weight saturated hydrocarbon polymer such as polyisobutylene or ethylene-propylene rubber, followed by reducing the ozonized material; e.g., by using re... | 10/03/1978 |
| 4116135 | Sliding screen closure for rail cars A railroad car with multiple decks for carrying automobiles, including gates at the end of the rail car which can be easily moved between their open and closed positions. Each gate includes a plurality of vertical frame members and screen sections connect... | 09/26/1978 |
| 4114532 | Impact printer magnet assembly A magnet assembly is disclosed suitable for use in an impact printer to produce a magnetic field for propelling movably mounted hammer coils toward a type bearing surface. The magnet assembly is comprised of a plurality of spaced relatively thin substanti... | 09/19/1978 |
| 4111593 | Wiped cutter A portable tool for cutting wiped-lead fillets from ends of a sleeve over a discontinuity in a cable or conduit where one or more electrical conductors have been spliced, such as telephone conductors in a lead or plastic sheath. The tool consists of a spl... | 09/05/1978 |
| 4109944 | Pipe coupling A coupling for unthreaded pipes of a sprinkler system, which permits the replacement of a small damaged pipe section without bending the pipes already emplaced in the ground. The coupling is comprised of a pair of semi-cylindrical pipe sections adapted to... | 08/29/1978 |
| 4106361 | Gear pump, gear and method A relatively simple gear-forming process is disclosed, which enables the production of a set of gears that is especially useful for a particular type of gear pump, and which also produces a set of gears which operates with a high degree of rolling contact... | 08/15/1978 |
| 4104623 | Frame for holding a camera Apparatus for holding a camera and flash unit so they are separated from one another, including a frame having an upper portion for holding the flash unit and a lower portion for holding the camera, and having a pair of laterally spaced handles near the l... | 08/01/1978 |
| 4103943 | Pipe coupling A coupling for unthreaded pipes of a sprinkler system, which permits the replacement of a small damaged pipe section without bending the pipes already emplaced in the ground. The coupling is comprised of a pair of semi-cylindrical pipe sections adapted to... | 08/01/1978 |
| 4102516 | Tensioning means for belt driven tape cassette In a tape cartridge of the type wherein a motor-driven endless belt bears against the supply and take-up rolls of tape to move the tape, and wherein the belt extends about a pair of guide rollers that hold it in tension, the improvement of a drag washer f... | 07/25/1978 |
| 4102268 | Impact printer type character A type surface useful in an impact printer having type characters thereon particularly configured to print large solid blocks. Each type character is comprised of a plurality of spaced land area portions distributed in an area of the type surface whose pe... | 07/25/1978 |
| 4100480 | Position and velocity sensors A sensor of the linear voltage differential transformer (LVDT) type is described, with a moveable core, which has both high permeability and magnetic retentivity, to thereby provide both position and velocity signals. Also described are various embodiment... | 07/11/1978 |
| 4099230 | High level control processor A method and means for implementing the control structure of a computer comprising, for example the basic constructs of repetition, conditional execution, and nesting whereby, at any point, a machine language program can be decompiled into the English lan... | 07/04/1978 |
| 4098560 | Fuel injection pumps for internal combustion engines A fuel injection system for an internal combustion engine is described, which provides for independent, flexible control of timing as well as quantity of fuel injected. The system is programmable for torque shaping and adaptable to a wide range of engine ... | 07/04/1978 |
| 4097869 | Orthogonal-port, biconical-horn, direction-finder antenna An antenna comprises the combination of a biconical-horn and a circular waveguide. The major symmetry plane of the horn is horizontal and the horn describes a figure of revolution about the major axis of the circular waveguide. Coupled to the one wall of ... | 06/27/1978 |
| 4096357 | Toll-call restriction system Apparatus for enabling a user to selectively defeat the toll-call restriction system. The apparatus is comprised of means for applying a tone to the telephone lines through the calling telephone mouthpiece. Detection means responsive to the tone sets a fl... | 06/20/1978 |
| 4091870 | Method for generating horizontal fractures in a wellbore A method for generating a horizontal fracture through a wellbore by causing two explosively induced shear waves to intersect. This is achieved by placing, within a coupling fluid within a wellbore, a length of high explosives whose center is adjacent the ... | 05/30/1978 |
| 4090213 | Induced junction solar cell and method of fabrication An induced junction solar cell is fabricated on a p-type silicon substrate by first diffusing a grid of criss-crossed current collecting n+ stripes and thermally growing a thin SiO2 film, and then, using silicon-rich chemical vapor d... | 05/16/1978 |
| 4090142 | Automatic frequency response plotting system An automatic frequency response plotting system includes control circuitry for controlling the sweep rate during the plotting operation as a function of rapid changes in the amplitude of the output of the device under test. The control circuitry senses th... | 05/16/1978 |
| 4086923 | Altitude conditioning method and apparatus A breathing method and apparatus for enabling a user, while at low altitude, e.g. sea level, to acclimate himself to high altitude conditions. The apparatus includes an inspiratory tube and an expiratory tube and means for selectively mixing a certain por... | 05/02/1978 |
| 4086567 | Handwriting verification system using landmarks When signals derived from a template signature are to be compared directly with signals derived from a specimen signature, because no two signatures are alike, there is a requirement for providing a certain degree of "rubberiness" between the specimen and... | 04/25/1978 |
| 4084090 | Automated mass spectrometer analysis system An automated mass spectrometer analysis system is disclosed, in which samples are automatically processed in a sample processor and converted into volatilizable samples, or their characteristic volatilizable derivatives. Each volatizable sample is sequent... | 04/11/1978 |
| 4083366 | Heart beat rate monitor A heart beat rate monitor is provided with memory means for storing upper and lower limits of a range of heart beat rates. The limits are transmitted to and stored in the memory from an external source. The monitor wearer's heart beat is sensed and whenev... | 04/11/1978 |
| 4083232 | Medical tomograph system using ultrasonic transmission Ultrasonic energy transmission in rectilinear array scanning patterns of soft tissue provides projection density values of the tissue which are recorded as a function of scanning position and angular relationship, θ, of the subject with a fixed coordinat... | 04/11/1978 |
| 4082097 | Multimode recharging system for living tissue stimulators A system is disclosed for controlling the charging of a rechargeable battery in an implanted human tissue stimulator by means of an external power source. Included in the stimulator are battery protection devices designed to sense the state of charge of t... | 04/04/1978 |
| 4081858 | System for computing wiener kernels Equipment is provided for determining the characteristics of a linear or non-linear system from its output y, for a quasi-random input x. The non-linear system may be a biological system. The computer described calculates first and second order kernels fr... | 03/28/1978 |
| 4078192 | Synthesizer for multiphase waveforms A synthesizer for multiphase waveforms is disclosed which is useful, for example, in open and closed loop control of a two-phase induction motor, such as for a magnetic recording disk spindle, utilizing a plurality of bistable elements, two for each phase... | 03/07/1978 |
| 4078173 | Light amplitude control system for position and motion transducers An opto-electronic transducer for determining position and/or velocity of one member with respect to another member is provided with light amplitude control. The transducer is comprised of a scale with a transmission grating on a first track and an indexi... | 03/07/1978 |