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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 4347877 | Apparatus for aseptically discharging flowable substances An arrangement for aseptically discharging flowable media, especially sterilized feed solutions for use in microbiology, includes a discharge valve which has a ball-shaped valve member having a through passage in which there is accommodated an insert that... | 09/07/1982 |
| 4346524 | Method and apparatus for conditioning tobacco A continuous stream of moist tobacco particles is withdrawn from a magazine by a carded belt conveyor, and successive increments of the stream are weighed prior to transport past a measuring unit which ascertains the initial moisture content of successive... | 08/31/1982 |
| 4344704 | Method of determining correction parameters for use in light-amount adjustment in a color copying operation A method of determining correction parameters for adjusting the amounts of light to which originals are to be exposed in a color copying operation in dependence on the composition deviations of the respective original from a calibrating original involves ... | 08/17/1982 |
| 4344304 | Coupling for mandrels or the like A coupling for mandrels in winding machines wherein the mandrel has a square end portion receivable in a complementary cavity which is machined into a socket rotating with a shaft which drives the mandrel in a direction to collect or to pay out a web of f... | 08/17/1982 |
| 4338002 | Method of determining the proper individually given positions of dioptric portions on eyeglasses The proper individually given positions of dioptric portions on eyeglasses are determined by illuminating the eyes of an examinee by light rays emanating from a source situated at a close-range point to form light-reflection images of the source on the ey... | 07/06/1982 |
| 4335956 | Method and apparatus for adjusting associated photographic copying and developing machines The condition of a photographic copying and associated developing machine for prints of color photographic negatives is evaluated by exposing a calibrating sample onto a first portion and by making a test exposure with preselected exposure data onto a sec... | 06/22/1982 |
| 4333335 | Apparatus for testing the wrappers of cigarettes or the like A testing apparatus for filter cigarettes or analogous rod-shaped articles has a drum-shaped conveyor with a smooth or fluted cylindrical surface and with radially inwardly extending suction slots which are connected to the intake of a fan. Each slot is d... | 06/08/1982 |
| 4332182 | Apparatus for transposing passages in electronic musical instruments An electronic organ, piano or accordion has a transposing apparatus wherein a voltage-regulated high-frequency oscillator transmits high frequency signals to the input of a 12-tone divider circuit whose outputs transmit tone frequency signals to the tone ... | 06/01/1982 |
| 4331236 | Container for X-ray film A cassette for X-ray film has a first chamber for the film and a relatively narrow elongated second chamber for the major part of an elongated data-carrying card a portion of which extends outwardly through a window in the cover of the container. The two ... | 05/25/1982 |
| 4330185 | Apparatus for exposing, developing and disposing of remnants of film units The remnants of film units which are withdrawn from a cassette in the housing of a camera for instant photography are reintroduced into the cassette subsequent to development of images and separation of image-bearing sheets. The reintroduction can be effe... | 05/18/1982 |
| 4330096 | Apparatus for winding or unwinding webs of photosensitive material or the like Apparatus for winding webs of photographic film like onto the hub of a reel in a cassette has a flexible band one end of which is secured to the hub and the other end of which is connected to a coupling unit having a normally closed clamping mechanism for... | 05/18/1982 |
| 4330061 | Method and apparatus for detecting and segregating defective commodities from a series of discrete commodities Cigarette packs which leave a packing machine by moving sideways so that one of the major surfaces of each pack faces forwardly are monitored for the presence of defective envelopes during travel between two endless belt conveyors. When the monitoring sys... | 05/18/1982 |
| 4329898 | Apparatus for subdividing a web of wrapping material into sections of predetermined length Apparatus for subdividing a web of wrapping material into sections of predetermined length has a reciprocable carriage for a pair of grippers which are pivotable into engagement with the web to thereby clamp the web against the carriage while the latter m... | 05/18/1982 |
| 4328744 | Roll for use in calenders or the like A rotary pressure applying roll which defines with a parallel complementary roll a nip for a running web of paper, textile or other flexible sheet material in a calender or the like has a cylindrical shell surrounding a stationary carrier in the form of a... | 05/11/1982 |
| 4327988 | Apparatus for treating photographic materials An apparatus for wet treatment of sheets or strips of photographic material has a small-volume treating chamber bounded by pairs of advancing rollers at its inlet and outlet ends. A lower wall of the chamber extends between the lower rollers of the pairs ... | 05/04/1982 |
| 4327780 | Apparatus for looping the outermost convolutions of spiral binders A tool which loops the end portion of the outermost convolution of a spiral wire binder around the neighboring next-to-the-outermost convolution while the convolutions of the binder extend through the perforations of a stack of paper sheets and the binder... | 05/04/1982 |
| 4326654 | Motor vehicle roof carrier for the affixation of skis and other objects to be transported A motor vehicle roof carrier for the affixation of skis and other ojbects to be transported, consisting of a carrier tube which is constituted by two pieces (1, 1') shiftable for width adjustment, and clamping parts (3, 6) shiftable relative to one anothe... | 04/27/1982 |
| 4325545 | Method and apparatus for aligning stacked paper sheets or the like Stacks of paper sheets wherein a first marginal portion of a relatively large second sheet extends beyond the corresponding first marginal portions of two piles of relatively small first sheets, wherein the second sheet is disposed between the two piles o... | 04/20/1982 |
| 4325418 | Apparatus for filling containers Apparatus for filling containers whose upper ends are open and which are moved seriatim and stepwise to a filling station has a receptacle which is disposed at a level above a container at the filling station and below a metering device whose lower end ca... | 04/20/1982 |
| 4324481 | Developing machine for radiation-sensitive material A rinsing tank in a developing machine for X-ray films or the like is equipped with a circulating system which draws liquid from the bottom zone of the tank and returns the withdrawn liquid to the upper zone of the tank. The contents of the tank can be ev... | 04/13/1982 |
| 4324465 | Arrangement for adjusting components of photographic apparatus or the like An electric motor which can drive the objective of a slide projector or which can adjust the blade or blades of a diaphragm receives signals from the output of an operational amplifier which receives first and second signals from a photosensitive transduc... | 04/13/1982 |
| 4324464 | Photographic apparatus with automatic focusing means A still camera or motion picture camera wherein the means for monitoring the brightness of a portion of or entire scene transmits signals to an automatic focusing mechanism as well as to the exposure controls. The connection between the output or outputs ... | 04/13/1982 |
| 4324266 | Process and device for confining liquid metals by use of an electromagnetic field A device for confining liquid metals comprises a coil which surrounds a jet of liquid metal to be confined and means for causing an alternating current to flow through the coil. These means cause an alternating current to flow through the coil at a freque... | 04/13/1982 |
| 4323320 | Light-reflecting arrangement for use in traffic control devices A light-reflecting arrangement includes a stack of clean light-reflecting plates which are mounted on a support for gradual advancement, one after the other, into an operative position in which the respective light-reflecting plate replaces the previous o... | 04/06/1982 |
| 4323082 | Apparatus for making holes in webs of wrapping material for cigarettes or the like Apparatus for making holes in a running web of wrapping material in a filter tipping machine has a housing which defines an elongated passage for the running web and contains rows of first and second electrodes which are disposed at the opposite sides of ... | 04/06/1982 |
| 4321475 | Hydroelectric power generating arrangement An electric power generating arrangement includes a container which is situated below the upper level of a body of water and has an inlet and an outlet. Water from the body of water is admitted into the receiving space bounded by the container through the... | 03/23/1982 |
| 4321050 | Apparatus for severing and shifting plugs for cigarettes or the like Filter plugs of double unit length are fed sideways into successive flutes of a rotating drum which moves successive plugs past a rotary knife so that each plug yields two coaxial sections of unit length. Each flute contains two spaced apart mechanical st... | 03/23/1982 |
| 4320773 | Method and apparatus for treating wrapping material for cigarettes or the like A running web of wrapping material which is about to be converted into adhesive-coated uniting bands for joining plain cigarettes with filter plugs in filter tipping machines is transported through the passage of a housing wherein the web travels through ... | 03/23/1982 |
| 4320423 | Apparatus for automatic repeated reproduction of sound on selected portions of magnetic tape or the like The movement of the tape is monitored. When the operator recognises during playback of the tape the start position of a tape sequence to be repeated he actuates a start switch upon actuation of which a value corresponding to the monitored tape movement is... | 03/16/1982 |
| 4317425 | Apparatus for applying plasticizer to fibrous filter material in filter rod making machines A filter rod making machine wherein a continuous tow of fibrous filter material is flattened to form a foraminous layer prior to advancement through an impregnating station where a rotating brush sprays particles of atomized plasticizer against the unders... | 03/02/1982 |
