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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 4896091 | Electric power converter The power converter (10) serves for conditioning an electricity supply for a load (12), whereby the supply is derived from a power source (11) and is adapted to the requirements of the load (12) in respect of the electrical values. The converter (10) comp... | 01/23/1990 |
| 4887807 | Side-limit stop for a device for separating of paper pieces from a stack The invention relates to the sidestop (20) guides, in the separating device (10), in particular a device for feeding a franking machine, the respective pile (11) of letters to be franked, irrespective of their particular format, by the front part of their... | 12/19/1989 |
| 4853611 | Inductive, electrically-controllable component An inductive component for universal use in any electrical/electronic circuits, whose coefficient of self-induction (L) is independent of the signal, is constant, electrically controllable and can be varied significantly. The component (10) comprises two ... | 08/01/1989 |
| 4785389 | Astable, magnetically coupled multivibrator A multivibrator circuit is provided having two power capacitors C1 and C2 in a power part, a primary winding N1 of a transformer T, as well as two switching transistors Q1 and Q2, and two diodes D3, D4. A positive feedback coupling is provided via the tra... | 11/15/1988 |
| 4730821 | Device for separating prefolded, foldable sheets The device includes a side wall (13), which leaves open a slot (15) of a variable width relative to a support (11). The flaps of letter envelopes are inserted into the slot (15) angled at 90 degrees, where the letter envelopes rest in a stack on the suppo... | 03/15/1988 |
| 4563375 | Flat bag filled with thermally conducting liquid or paste A flat bag is disclosed which is filled with a thermally conducting paste or liquid. The bag is composed of foils and is sealed and closed on all sides. The foils are of metal such as aluminum and the flat bag is filled only to part of its maximum availab... | 01/07/1986 |
| 4403981 | Folding machine The material to be folded (a, b) and consisting of one or several sheets is introduced into a flat cartridge (1) up to the point (A) of the fold to be formed by means of a pair of supply rollers (29, 30). Subsequently, the cartridge (1) is turned around a... | 09/13/1983 |
| 4342976 | Pulse transformer The pulse transformer consists of a closed toroidal core (30), the primary winding (31) and secondary winding (32) of which are fashioned as multilayer, flexible printed circuit boards. These circuit boards have the shape of flat strips and are bent into ... | 08/03/1982 |
| 4179701 | Device for electromechanically positioning a unilaterally pivoted lever arm in three different stable positions A lever arm adapted to hold a stylus or the like on one end is rigidly connected at the opposite end in spaced parallel relation to a second arm, and a shaft perpendicular to both arms through the rigid connection provides a pivot axis therefore. An openi... | 12/18/1979 |
| 4172543 | Resilient attachment clip A resilient wire attachment clip has two respective longitudinally extending; elongated, loop portions positioned in two mutually parallel planes, each of the loops formed by an internal limb and an external limb connected by a resilient arc portion that ... | 10/30/1979 |
| 4138667 | Segment digital/analogue converter A segment digital/analogue converter for conversion of an eight-bit PCM-work into an analogue output voltage in accordance with the CCITT A-law, with a weighting network and a stepwise switched operational amplifier, with inputs for connection of each bit... | 02/06/1979 |
| 4119804 | Open loop system for transmitting digital information A plurality of subscriber stations is connected to one or more PCM multiplex lines of a PCM switching network via a unidirectional loop and a transfer station. The subscriber stations are series connected to the loop on which addressed telegrams circulate... | 10/10/1978 |
| 4110743 | Wireless paging receiver A wireless paging receiver to be called up individually or as member of a group of receivers by a binary modulated carrier frequency call telegram. Each call telegram contains an address. Each individual address is composed by code words selected from a c... | 08/29/1978 |
| 4084133 | Method of and apparatus for determining the direction of the mutual temporal shift of at least two similar stochastic signals Circuitry having at least two stores for the periodical storage of instantaneous values of at least two similar stochastic signals, at least two comparison circuits for comparing during a comparison time interval the stored values with subsequently occurr... | 04/11/1978 |
| 4081612 | Method for building-up of routing addresses in a digital telecommunication network In a digital telecommunication network containing bearer channels between switching nodes, the method of building-up a routing address consisting of routing words that are associated with the switching nodes and via which the transmission of information p... | 03/28/1978 |
| 4079209 | Method and apparatus for limiting the number of build-up packets during the process of building up a routing address in a digital telecommunication network The invention relates to a method for limiting the number of build-up packets during the process of building-up a routing address for the subsequent transmission of address-coded packets, the addresses of these packets being this said routing address, fro... | 03/14/1978 |
| 4049906 | Message network for the transmission of digital telegrams with an address consisting of routing words A general digital message network for short address-coded telegrams having plural switching stations. In each switching station the outputs of the input stores are each connected to one of the inputs of a multiplexer. The inputs of the output stores are c... | 09/20/1977 |
| 4048446 | Data transmission system A plurality of subscriber stations and a plurality of switching points are connected in series in a loop circuit transmitting signals in one direction, parallel line sections disposed in parallel with the loop circuit are each connected with two switching... | 09/13/1977 |
| 4002842 | Time multiplex loop telecommunication system A closed unidirectional transmission loop has plural stations coupled thereto in series for transmitting time multiplexed signals in the form of addressed byte groups. For transmitting a byte group, a station delays at the end of the byte group passing on... | 01/11/1977 |
| 3974326 | Facsimile communication system A black and white facsimile communication system wherein the document to be transmitted is scanned line by line, the scanner signals are sampled to obtain pulse sequences having a constant number of pulses for every line. The pulse sequences are converted... | 08/10/1976 |
