baber/WOPTO huggingface dataset:
Patent DE-2649304-A1 (DE)
Title: Sludge treated to produce energy-rich material - by aerobic process with heat retention followed by ventilation and drying
Inventor: BAUER OTTO
IPC: C02F3/28
Filed: 1976-10-29
Abstract: Acid or alkaline sludge with 15-50% solids content and opt. inoculated with similar sludge to promote the process, is adjusted to a pH value exceeding 7, esp. 8-11, by adding alkali. pref. calcium; the sludge is then laid in vertical, horizontal, inclined or other suitably shaped layers to a silo depth in a growth chamber with accompanying sufficient aeration. Light is excluded and the chamber is insulated and, without heating, a temp. of 5-60 (25-35) degrees C is maintained; natural or artificial ventilation is provided and harmful gases are removed or neutralised. Microbic action is continued for 2-20 days to convert mineral and harmful gas-producing substances into energy rich substances, harmful and noxious gases being broken down and neutralised. When the desired prodn. has been achieved, intensive aeration with or without heating and/or drying is used for suppressing microbe growth. Used to produce materials suitable for combustion, low temp. carbonisation, coking and the production of activated carbon and in general for rendering noxious rubbish harmless.
Patent DE-2651373-A1 (DE)
Title: Alarm circuit to detect inadmissible drop in input level to repeater - applies to repeater amplifier in CW communication system when output level is also low
Inventor: GOELZ HUBERT DIPL ING
IPC: H04B3/46
Filed: 1976-11-10
Abstract: The alarm circuit detects any inadmissible drop in the input level to a repeater amplifier in a CW communications system when the output level is also inadmissibly low. The alarm is given if either a lower or upper level is exceeded after the control process has ended and when the pilot signal at the amplifier output exhibits a lasting inadmissible deviation in level. A multiple voltage divider with two tappings is used to generate ref. voltages of different polarity. These two reference voltages are applied to the control input of a first operational amplifier and to the inverting input of a second operational amplifier. The remaining two inputs are connected together. The outputs are connected via load resistors to a third operational amplifier.
Patent DE-2651510-A1 (DE)
Title: Arc welding machine circuit arrangement - has inverter connected to frequency changer with filter in series via transformer (NL 16.5.77)
Inventor: HANSEN KJELL
IPC: B23K11/24
Filed: 1976-11-11
Abstract: The circuit diagram concerns a connection layout for AC and/or DC arc welding machine consisting of a transformer, a three-phase rectifier connected to the mains and an inverter connected to the rectifier to produce alternating current. The inverter is connected to the frequency changer (SCR5) via a transformer (T). A filter consisting of an element (L5, C4) is connected in series to the frequency changer. The inverter (SCR1-4) and frequency changer (SCR5-8) is provided with an electronic control stage (CCT1, CCt2). The inverter produces an alternating current with a frequency higher than that of the mains. The frequency of the current coming from the inverter is in the region of 5 to 30 kHz. The control of the welding output is effected by the frequency changer in conjunction with the control stage (CCT2).
Patent DE-2657833-A1 (DE)
Title: Polyurethane casings for boiled sausages - based on linear aliphatic 6 carbon units and smaller amts. of higher poly:ol(s) or di:isocyanate(s)
Inventor: KORLATZKI RUDI ING GRAD
IPC: C08G18/73
Filed: 1976-12-21
Abstract: Casings for boiled sausages contain >=1 layer of an elastic polyurethane with a mol. wt. of (pref.) >2000, in which the basic units, esp. the polyol and diisocyanate units, are preponderantly of linear, aliphatic C6 units. The polyurethanes also contain higher molecular polyols and diisocyanates in an equiv. ratio of about 1:3.5 to 1:70, pref. 1:10 to 1:50 and esp. 1:15 to 1:30 and a wt. ratio of about 1:0.4 to 1:4.0, pref. 1:0.6 to 1:3.5 and esp. 1:0.8 to 1:3.0, and an active hydrogen contg. low molecular chain lengthening agent such as a low molecular glycol in an equiv. ratio of about 5:1 to 70:1, pref. 7:1 to 60:1 and esp. 9:1 to 50:1 on higher molecular polyols, such that the chain lengthener contains is not 50 mol. % linear aliphatic C6 units. When the sausages are boiled or steamed after mfr., the skins are able to take up the expansion of the contents of the sausage. In contrast to prior art skins, the present casing are also able to accommodate the subsequent shrinkage which occurs when the sausages cool down, so that the cooked sausages have smooth, non-wrinkled skins which are attractive to the consumer.
Patent DE-2702884-A1 (DE)
Title: Concrete drain pipe lined with sleeve, pref. of polyamide - disposed loosely in pipe interior and held hermetically at ends by bellmouth socket and end ring
Inventor: JUNG KARL
IPC: E03F3/04
Filed: 1977-01-25
Abstract: Drain pipe has a concrete outer sleeve whose inner wall is lined with a polyamide layer spaced from the inner wall by a small radial clearance. The polyamide layer terminates at the front (socket) end of the sleeve in a bell-mouthed socket in intimate contact with the sleeve, whilst the rear end of the layer is closed by end ring which abuts the polyamide layer and encloses the end of the sleeve. Drain pipes of all dia. can be mfd. with concrete sleeves protected against direct contact with liquid carried.
Patent DE-2708280-A1 (DE)
Title: Relief-less photomask for microcircuits - produced by ion bombardment etching and ion plasma vapour deposition
Inventor: IVANOVSKIJ GENNADIJ FOMITSCH
IPC: G03F1/00
Filed: 1977-02-25
Abstract: A reliefless photomask for use in the mfr. of semiconductor devices and microcircuits, is produced in a vacuum chamber by removing material from a transparent substrate by ion beam etching in a depth equal to the desired thickness of the layer of masking material. In the next operation in the same vacuum chamber, the masking material is applied by ion plasma vapour deposition. The resulting photomask has a high mechanical strength and wear resistance. The number of microfissures in the masking material layer is greatly reduced. The structural elements have edges with a straightness to within 0.1 mu.
Patent DE-2711284-A1 (DE)
Title: Alkaline accumulator sintered metal electrode strip impregnation - by rolling up with ethylene!-TFE copolymer separator, ensuring circulation
Inventor: KOLOSOV IVAN ALEKSANDROVITSCH
IPC: H01M4/28
Filed: 1977-03-15
Abstract: Impregnation of sintered metal electrodes for alkaline accumulators involves rolling up a sintered semi-finished strip together with a separator over its entire width and length, which ensures the required technological play, and immersion in an active soln. The separator pref. consists of a copolymer of tetrafluorethylene with ethylene, produced e.g. by injection moulding. Process is suitable for the impregnation of partic. thin electrodes.
Patent DE-2714338-A1 (DE)
Title: Continuous casting plant for steel billets - using swivel arm to draw dummy chill and billet out of mould
Inventor: TODZY HUGO
IPC: B22D11/08
Filed: 1977-03-31
Abstract: Continuous casting plant, esp. for mfg. steel billets, where a curved casting track is located under the mould, and is followed by a straightening machine or transporter. On the casting stage is a horizontal pivot shaft for a swivel arm. The bottom end of the arm is forked and contains a driven, lower clamping roll below an idling roll which can be driven towards or away from clamping roll via a work cylinder. A short starter dummy chill can be clamped between the rolls after the dummy has been lowered through the mould; the arm is driven on the pivot shaft via a curved guide track, so the dummy and the cast billet follow a curve formed by several glide surfaces which replace the usual pairs of rolls employed in conventional plant. Setting-up times between casting cycles are reduced; and the usual guide and support roll track is eliminated.
Patent DE-2723812-A1 (DE)
Title: Strip handling unit with coiling and cutting shafts - has several shafts on base swivelably fixed to turret head
Inventor: LATTA ELIMAR
IPC: B23D35/00
Filed: 1977-05-26
Abstract: Coiling or cutting shafts (7, 7') of a strip of manufacturing or coiling machine are attached in each case to a base (4) fixed to a turret head (2). The base is swivelable about an axis (6) running at right angles to the turret head axis (3). The coiling shaft axis or the axis of symmetry (11) running between a cutting shaft pair (7, 7') is radially displaced in each case to the rotational axis (6) of the base. Several coiling shafts or cutting shaft pairs are provided on a base. The design enables several operational programs to be run without noticeable change-over time.
Patent DE-2724965-A1 (DE)
Title: Power transmission for agricultural vehicles - has differential unit having ring gear, sun gear and carrier connected to output of transmission
Inventor: SCHAUER GEORGE A
IPC: F16H47/04
Filed: 1977-06-02
Abstract: The continuously variable power transmission utilizes a differential unit having a ring gear, a sun gear, and a carrier connected to the output of the transmission. A power input shaft and a variable speed hydrostatic transmission are driven by the power input shaft and rotatively fixed to one of the gears. There are devices for controlling the drive relation between the differential unit gears to provide a low-speed range hydrostatic drive. Selectors selectively connect the power input shaft to the other of the differential unit gears for an intermediate speed range hydromechanical drive.
Patent DE-2726335-A1 (DE)
Inventor: HEMPELMANN WILHELM
IPC: G21F9/36
Filed: 1977-06-10
Abstract: The ultimate storage container consists of a first container (2) which is sealed by two caps (12, 13). The inner cap (12) is a double cap system for contamination-free connection to openings of contaminated spaces. The second container (1) is provided with a boltable sealing cap (8). This container (1) is fixed in the first container (2) by a concrete or bitumen filling (10). This type of packing permits highly active radioactive waste to be transported and economically stored. <IMAGE>
Patent DE-2726677-A1 (DE)
Title: Fluid atomiser for aerosol can - uses vortex chamber in actuating knob in front of nozzle aperture
Inventor: KRUEGER EBERHARD
IPC: B65D83/14
Filed: 1977-06-14
Abstract: Atomizer for use with a propellant gas has a valve, fastened pressure - and fluid proof to a spray can, with a propellant pipe projecting into the fluid to be sprayed. The hollow automatically retracting valve plunger carries an actuating button, which is pressed down with it. The actuating button (1) contains a vortex changer (3) in front of the nozzle aperture (2). Separate feed pipes (4, 5) for propellant and fluid extend into the chamber. The pipe apertures (4, 5) have valve seals, which are simultaneously opened or closed by the actuating button. Pref. the pipes are arranged concentrically in the valve plunger.
Patent DE-2727920-A1 (DE)
Title: Miniature single phase motor with narrow air gap - has airgap width defined by rotor outer surface and stator salient pole surfaces
Inventor: MORRILL WAYNE JONES
IPC: H02K17/10
Filed: 1977-06-21
Abstract: The laminated stator rim has inwards protruding poles whose inner surfaces define bore, in which is mounted rotatably a rotor. The latter outer surfaces form with the pole inner surfaces radial air gap. The width of the gap in radial direction ranges from 0.025 to 0.152 mm. The ratio of the air gap width to the rotor diameter is between 0.0009 to 0.005. Preferably the gap width ranges from 0.051 to 0.102 mm and the gap width ratio to the rotor diameter is 0.0018 to 0.0035. Salient poles may be used. Typically the motor is for alternating current and has a squirrel-cage rotor for a single-phase operation.
Patent DE-2728067-A1 (DE)
Title: Projection template for use in manual printed circuit assembly - has opaque layer on glass or plastics plate and data stored by selective removal of layer
Inventor: FRITZ HANS-ULRICH DIPL ING
IPC: H05K3/30
Filed: 1977-06-22
Abstract: The optical data carrier, for manual operations, is especially intended as a projectable template for use during the manual insertion of electronic components into a circuit board. The data is carrier on it in the form of circuit symbols, marks, etc. The carrier (10) consists of a transparent glass or plastics plate on which an opaque layer (12) is deposited. The optical data is stored by removing parts of the opaque layer. Alternatively, the opaque layer may be sandwiched between two glass or plastic plates.
Patent DE-2728468-A1 (DE)
Title: Digital power controller esp. for heater loads - has A=D converter and zero voltage switches controlling power to binary stepped heating elements
Inventor: PAUSCHMANN HOLM PROF DIPL CHEM
IPC: G05D23/24
Filed: 1977-06-24
Abstract: The power controller provides very fine incremental power adjustment without mains interference even with high powers. If is esp. suitable for controlling heaters. The controller consists of an input unit (1) to which desired temperature, actual temperature, heating rate (temp. rise with time) and correction rate (follow-up speed) signals are fed. The analogue signals from the input unit are converted to digital form in an A/D converter (2) having an 8-bit output. These outputs are coupled via opto-insolators (3) to individual zero voltage switches (4). These in turn control the amount of power fed to the individual heating elements (5). The zero voltage switches switch the AC power on and off only at the zero-crossing instant and the power is supplied in the form of bursts of a few cycles at a time.
Patent DE-2730125-A1 (DE)
Title: Pressurised gas fired rifle - has valve mechanism which controls gas flow into barrel by trigger actuated valve and seal
Inventor: HAJEK JOHANN
IPC: F41B11/62
Filed: 1977-07-04
Abstract: The pressurised gas fired rifle accommodates pressurised gas holding container. The gas flow into barrel is controlled by a valve. The latter is a spring loaded axially moving plunger in an axial bore connected to barrel. Gas leakage is prevented. The low recoil effect ensures good firing accuracy on using a wide variety of ammunition. This rifle can be used for self defence and it can be stored in loaded state using carbon dioxide cylinders. The pressurised gas container (15) is fitted into the magazine sleeve (12) closed by the control valve. This valve is actuated by the sliding plunger (29) which is actuated by spring arrangement (13) released by the trigger (14) of the gun. The magazine sleeve (12) is able to slide in a tube (11) in the gun breech.
Patent DE-2733157-A1 (DE)
Title: Socket for connecting components or test instrument into circuit - has switching unit which connects instrument to circuit before opening circuit
Inventor: LINDENMAIER WILLI ING GRAD
IPC: H01R24/76
Filed: 1977-07-22
Abstract: The electric circuit socket opens the current path to which it is connected to allow insertion of electric components and/or units, e.g. meters via connectors. The unit provides a convenient and robust system that allows self-actuation of the electric connections and disconnections in sequence following insertion of the connector into the socket unit. The socket unit is fitted with a switching unit that is designed such that the insertion of the component connector(s) in sequence initially makes a connection between to components or appts. being switched into the circuit with the circuit terminals then breaks the intermediate, direct, current-path.
Patent DE-2733890-A1 (DE)
Title: Simultaneous measurement of phase and frequency difference - using reference oscillator and frequency counter for averaging pulse width during gating interval
Inventor: LUEDER RAINER DR ING
IPC: G01R23/10
Filed: 1977-07-27
Abstract: The frequency/phase meter consists of a reference oscillator and measured signal. Both signals are fed to dividers. The outputs of these are fed to a phase detector. This can be a flip-flop with reference signal fed to its set input and measured signal fed to its reset input. The output is a signal whose pulse width is proportional to the phase difference between the inputs. The output drives a frequency counter which provides an average pulse width measurement during a certain gating time. This time is a whole multiple of the pulse width of the phase signals. The variation with time of the averaged value is determined over a measured interval. From this calculation the average relative frequency diference between the two signals is obtained by division by the second time interval. This interval is a whole multiple of the first gating time.
Patent DE-2738933-A1 (DE)
Title: Readily torn elastic bandage for surgical and sports usage - incorporates e.g. cotton and polyurethane yarns, metal oxide(s) and resins
Inventor: SCHAEFER EWALD
IPC: D03D15/56
Filed: 1977-08-30
Abstract: A braod fabric for bandages has high elasticity along the warp and can be easily torn along the weft or vice versa.: In another variatn the fabric exhibits high elasticity along the warp and can be tron easily both along the warp and weft. The fabric contains either (a) metal salts or oxides or (b) urea-formaldehyde, melamine or similar resin. Used as fixation or compression bandages, after deformation, fracture or other injuries, as well as protective bandages in sports practice. The bandages can be torn easily both longitudinally and transversely without the use of scissors or knife. After tearing, the edge can simply be folded and pressed on the remaining part of the bandage.
Patent DE-2800775-A1 (DE)
Title: Appts. testing circuit boards before components are mounted - has movable contact pins combined in pairs or groups and applied to board
Inventor: MAELZER MARTIN DIPL KFM
IPC: G01R1/067
Filed: 1978-01-09
Abstract: Circuit boards are tested before the components are mounted. In addition to the usual spring-loaded contact pins movable only in the axial direction and applied to the circuit board, other contact pins movable in other directions are used and combined in pairs or groups mounted on supporting plates or strips. Tests are made by applying sequentially one or more pairs of contacts to the conducting traces on the circuit board. The appts. can be formed from exchangeable components, e.g. released and fixed by their axial bolts. These arrangement lightens the reception of various printed circuit board types and sizes.
Patent DE-2800867-A1 (DE)
Title: Hinged wheel set railway vehicle disc brake - has carrier rod connecting brake saddle and cylinder parallel to activating rod
Inventor: BARONNET PIERRE
IPC: B61H13/38
Filed: 1978-01-10
Abstract: There is a brake cylinder near one wheel and brake saddle near the other in the wheel-set, on the disc brake unit for rail bound rolling-stock with wheel-sets mounted in hinged frames. Saddle (10) and cylinder (15) are linked by a tubular carrier rod (14) aligned parallel to an activating rod (21) hinged to piston rod (19) and coupled to a brake lining (23). They are fitted with mounting unit (11, 12, 16, 17) on the carrier rod permitting transverse movement. The saddle is linked to the hinge frame (2) by a hinge lever (26). This is compact with few bearing points and facilitates rapid brake lining replacement.
Patent DE-2801270-A1 (DE)
Title: Chalky soil fertility improvement system - involves laying plastics sheet under top soil to retain sufficient water for growth of plants
Inventor: EICKMANN BODO DR ING
IPC: A01G25/00
Filed: 1978-01-02
Abstract: The system is used to increase the fertility of porous chalky soils by mechanical retention of water. A sheet of plastics material is laid under the topsoil, so that a sufficient quantity of water remains in the ground to promote the growth of crops. A new layer of different subsoil can be laid on the sheet, which can be perforated to maintain the ideal degree of soil moisture, typically from the soil surface after laying.
Patent DE-2803854-A1 (DE)
Title: Parallel guide for vehicle mounted front loader - has indicator cylinders as integral components of lifting cylinders with two position control valve
Inventor: FISCHER JUERGEN DIPL ING
IPC: F15B11/20
Filed: 1978-01-30
Abstract: The parallel guide is for a vehicle-mounted front loader, which is fixed to the end of a front loader arm connected with the vehicle. There is a lifting cylinder, a double-acting, implement tipping cylinder and an indicator cylinder which senses the front loader angle. An hydraulic servo valve is provided for the lifting cylinder and the tipping cylinder. Each indicator cylinder (14, 14') is an integral component of a lifting cylinder (10, 12). An additional control valve (40) has two positions. In its neutral position, it has a channel connected with each cylinder chamber (33 or 34) of the tipping cylinder and with each lifting cylinder (13) or indicator cylinder (14'). In its other position there is only one channel to connect all the lifting cylinders (13) with all the indicator cylinders (14').
Patent DE-2810383-A1 (DE)
Title: Room air conditioning discharge unit - has internal partition with adjustable vanes and perforated plates providing throttle action
Inventor: BAUR HERBERT
IPC: F24F13/15
Filed: 1978-03-10
Abstract: The air discharge unit controls and directs the quantity of air delivered to a room by an air-conditioning system, having adjustable vanes and perforated plates before the outlets. A discharge head or section of pipe has an internal partition (6). Throttling devices (5) precede the partition or are incorporated in it. The partition can divide the pipe or head in the horizontal direction into two chambers, by which the different air current (8, 9) are delivered.
Patent DE-2813855-A1 (DE)
Title: Positioning system for transport mechanism - uses difference between nominal and actual values of pulse period for motor voltage control
Inventor: KRULL FELIX DR ING
IPC: G05D3/20
Filed: 1978-03-31
Abstract: The transport mechanism is driven by a DC motor and moves a recording medium. It has a pulse generator coupled with the motor shaft; a counter storing the distance to the target position and a speed controller for the DC motor, whose reference element delivers a control variable depending on the counter reading. Pulses from the pulse generator are applied to a time measuring circuit which generates an actual value corresponding to the period of these pulses. The difference between the control variable which corresponds to the nominal period duration, and the actual value is the control deviation controlling the DC motor voltage.
Patent DE-2814942-A1 (DE)
Title: Multiplex control of liquid crystal displays - has matrix with rows and columns to which different pulse voltages are applied
Inventor: WALTER KARL-HEINZ DIPL ING
IPC: G02F1/133
Filed: 1978-04-06
Abstract: The display consists of a conductor matrix with rows and columns. The rows are consecutively addressed, while signal voltages "O" or "L" are applied to the columns during the addressing time of every row. Voltages applied to the rows have always the same amplitude, and are either LF or HF pulses, while voltages applied to the columns contain at least LF pulses. Each row receives during its addressing time only LF pulses, and during the remaining time only HF pulses in the form of keyed HF voltages. Column voltages consist only of HF pulses.
Patent DE-2815281-A1 (DE)
Title: Test arrangement for multiplexed telephone party lines - uses optical links to avoid interruptions to calls in process
Inventor: KOCH HELMUT
IPC: H04Q5/24
Filed: 1978-04-08
Abstract: One two-partly line is fed from two exchange lines through the carrier frequency equipment and its by-pass equipment. Across the lines are the receivers of two optical couplers, the emitters of which are in series with the respective lines. The relaysin one line is activated when the other line is used, by employing an optical, not electrical, link. This enables the interruption of telephone connections during exchange testing of multiplexed lines to be avoided. It can also be used for automatic indication of engaged lines and supply failure.