"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 4029419 | Textile color analyzer calibration A spectrophotometer is operative to measure or analyze the colors of materials such as textiles. A test sample is held by a holder and is illuminated by polychromatic light. Diffuse light reflected from the sample is collected and converted to variable mo... | 06/14/1977 |
| 4029420 | Light reflectance instrument An instrument for measuring light reflectance from fabric and the like materials which have a heterogeneous surface configuration includes an aperture defining a sensing area, three light sources for illuminating the sensing area, and a photoelectric cell... | 06/14/1977 |
| 4017188 | Surface profile measuring device and method An arrangement for measuring the profile of surfaces having a characteristic one-directional lay with sufficient resolution to determine the surface roughness thereof is disclosed, comprising a device for illuminating a small spot on the surface, with an ... | 04/12/1977 |
| 4012141 | Identification of gemstones by relative reflectance measurements coupled with a scale calibrated in gem names This invention embodies a novel concept in the confirmation of the identification of faceted gemstones and an instrument which makes this concept practical and useful. The concept is that it is not necessary to determine the refractive index (nD | 03/15/1977 |
| 4003660 | Sensing head assembly for multi-color printing press on-line densitometer A sensing head assembly for a multi-color printing press on-line densitometer movably mounted on support members that extend across the width of a printed web of paper that has printed thereon, in addition to the printed matter being monitored, a pluralit... | 01/18/1977 |
| 3999864 | Gloss measuring instrument An instrument for measuring the gloss of test samples at different predetermined angles of incidence, includes a glossimeter head operative to receive polychromatic light and direct it along plural beams at different angles of incidence towards an area on... | 12/28/1976 |
| 3977789 | Scanning differential photoelectric autocollimator An apparatus is disclosed which automatically measures the geometrical deviations of a reflecting surface from a reference surface, and which also can be used to automatically measure the deviations of some light beam deviating property of a transparent a... | 08/31/1976 |
| 3971666 | Process for recycle of asphalt-aggregate compositions A process for recycling asphalt-aggregate compositions comprises heating pieces of the used composition to form a semi-fluid or viscous composition, detecting the composition's asphalt deficiency and adding the proper amount of make-up asphalt. The compos... | 07/27/1976 |
| 3970393 | Automatic compensation for densitometer imbalance A method for compensating measurements of optical density of ink printed by a printing press in which amounts of light reflected from a printed test patch area and from an adjacent unprinted reference area are measured. The measurement sensitivity of sens... | 07/20/1976 |
| 3970394 | Densitometer head with fiber optics Densitometer head having a light source and optics for directing light onto a surface, optics and transducers for receiving and sensing light reflected from the surface, and external connections to signal processing circuitry. Fiber optics are used to rec... | 07/20/1976 |
| 3960077 | Printing with blanket having recessed portion In an offset lithographic printing machine a recess is provided in the offset blanket in a position such that when the recess is at the nip between the blanket cylinder and the printing plate cylinder the recess is in registry with a part of the non-print... | 06/01/1976 |
| 3947088 | Interface for light probe A viscous light transmissive fluid material, such as glycerine or the like, is applied to the solid end portion of a light conducting member of a light probe for optically coupling the latter with a sample having an irregular glossy surface. The fluid int... | 03/30/1976 |
| 3942360 | Method and apparatus for measuring the degree of contamination of liquids Liquid containing contaminants is passed through a lamination of a plurality of filter papers and the quantities of the contaminants deposited on upper and lower filter papers are compared with each other to determine the degree of contamination of the li... | 03/09/1976 |
| 3938891 | Apparatus for detecting changes in a natural ocean wave pattern An apparatus and method for detecting deviations from a normal ocean wave pattern which may be caused by interference with artificially created wave patterns, such as from an underwater moving vehicle. A camera mounted in an aircraft has its optic axis ve... | 02/17/1976 |