baber/WOPTO huggingface dataset:
Patent DE-3831208-A1 (DE)
Title: Heating boiler
Inventor: VIESSMANN HANS DR
IPC: F24H8/00
Filed: 1988-09-14
Abstract: The heating boiler, in particular condensing boiler, consists of a water-conducting housing (16), in which a burner chamber (2) is arranged, from which heating-gas flues (5) lead to a waste gas-collecting chamber provided with waste-gas-discharge connection stub. To be able to ensure optimal condensate drainage in the region of the bottom of the combustion chamber, the bottom (1) of the combustion chamber (2) is constructed in the form of a funnel. From this, a condensate channel (3) of small cross-section in relation to the diameter of the combustion chamber leads centrically to the waste gas-collecting chamber (4), the remaining area of the bottom of the combustion chamber, which area is considerably larger in relation to the cross-section of the condensate channel, being used to link the heating-gas flues (5), which are preferably constructed as pockets and arranged radially with respect to the centre of the bottom (1). <IMAGE>
Patent DE-3833595-A1 (DE)
Title: Bearing lock for roller bearings
Inventor: LOBATZ WOLFGANG DIPL ING
IPC: B41F7/40
Filed: 1988-10-03
Abstract: The invention relates to a bearing lock for roller bearings, particularly for roller bearings in printing machines, as used, for example, to support ink-transfer and damping rollers. The object on which the invention is based is to provide a bearing lock for roller bearings which completely surrounds the bearing, moves it into a defined position and secures this position, absorbs torque and forces and can be locked and unlocked without tools. According to the invention, the object is achieved by virtue of the fact that a bush is mounted rotatably but in axially non-displaceable fashion on a bearing journal arranged in the respective frame wall, that the bush is a support for clamping tongs consisting of a clamping sleeve and a main body, that the bush and the clamping sleeve are positively connected to form a lead screw mechanism and that the roller bearing can be clamped radially in the clamping sleeve by means of a manually actuable rotatable locking ring. <IMAGE>
Patent DE-3837575-A1 (DE)
Title: Process for the ring chlorination of aromatic hydrocarbons
Inventor: MAIS FRANZ-JOSEF DIPL CHEM DR
IPC: C07C17/12
Filed: 1988-11-05
Abstract: Aromatic hydrocarbons which are monosubstituted by straight-chain or branched C1-C12-alkyl or C3-C8-cycloalkyl can be chlorinated on the aromatic ring in the liquid phase in the presence of Friedel-Crafts catalysts when benzo[f]-1,4-thiazepines are used as cocatalysts. This allows a higher proportion of p-isomers to be obtained.
Patent DE-3838009-A1 (DE)
Title: Copier having simultaneous two-colour copier operation mode
Inventor: HIGASHIO KIMIHIKO
IPC: G03G15/00
Filed: 1988-11-09
Abstract: An electrophotographic copier (K) having three or more developing units (4 to 6) which in each case contain developer in a different colour and are arranged along a photo-sensitive element (1) and serve to develop a latent picture (image) which has been generated on the photosensitive element (1) by exposing a picture of an original so that a multicoloured image is obtained, having a selecting element (306) for selecting any two developer units (4 to 6), a device (100) for marking regions (A, B and C) of the latent picture to be developed by the two selected developing units, and a device (621 to 623) for subsequently actuating the two selected developing units as a function of the specified areas (A, B, and C) for producing a two-coloured picture during an exposure operation of the picture of the original. <IMAGE>
Patent DE-3838572-A1 (DE)
Title: Friction-coating process
Inventor: POLZER GOTTLIEB PROF DR
IPC: B23K20/12
Filed: 1988-11-14
Abstract: The invention relates to a process for the friction-coating of metallic outer surfaces by means of a rotating rubbing-on pin of copper or a copper-containing alloy in the presence of glycerol, a brass layer being first rubbed onto the metallic outer surface by the rubbing-on pin and the coated rubbed surface zone being simultaneously consolidated mechanically. The object of the invention of combining the process of mechanical friction-coating with a liquid which effects a tribochemically excited copper deposition on the coated rubbed surface zones after the mechanical friction-coating is achieved, when a liquid containing glycerol, a copper compound, a reducing agent and water is fed to the rubbing-on pin, copper is deposited from this liquid, effected by the water fraction and excited tribochemically, and attached to the rubbed surface, and the oxidation processes of the friction pairing are reduced by the reducing agent. The liquid contains 5% of copper(II) chloride, 6% of glucose, 20% of water and 69% of glycerol. The reducing agent used is glucose.
Patent DE-3841538-A1 (DE)
Title: Illumination device
Inventor: ALBRECHT BERT-MICHAEL
IPC: F21V17/06
Filed: 1988-12-09
Abstract: According to the invention a novel illumination device (10) is proposed for illuminating a gun barrel (12) for visually inspecting the inside of the gun barrel with a video camera. The illumination device (10) essentially consists of an incandescent lamp (18) to whose socket (holder) (16) a cone mirror (22) is fitted.   The cone mirror (22) introduced into the direct beam path between the incandescent lamp (18) and the objective (14) of the video camera shields the filament (20) of the incandescent lamp (18) and thus prevents screen burns from developing on the photo-electric coating of the video camera, even in the case of incident light which impinges over a longer time and is intensive. <IMAGE>
Patent DE-3911767-A1 (DE)
Title: Refuse-burning boiler plant - has dosing arrangements for dry basic additive to meet clean flue-gas requirements
Inventor: KOEHLER UWE DR
IPC: B01D53/50
Filed: 1989-04-11
Abstract: Plant for burning fossil fuels is particularly suitable for burning refuse. It includes the boiler (1), which may have an afterburner )arrangement (9), and a flue stack (13) and filters (12). A dosing arrangement is provided for a dry basic additive for binding acid-forming gases. There is at least one other arrangement, at a different stage, for a basic additive. Upstream of each of these additive arrangements (14,15; 17,18) is a flue-gas sensor (16;19) for controlling it. USE/ADVANTAGE - Fuels of compositions that can vary considerably and continually, such as refuse, can meet required clean-gas values reliably and with economical use of basic )additives.  The use of basic additives in dry form saves considerable expense in apparatus.
Patent DE-3918715-A1 (DE)
Title: Gas burner for domestic cooker - has cylindrical housing with flames directed radially inwards
Inventor: KUZSELKA OEDOEN GYOERGY DIPL I
IPC: F23D14/06
Filed: 1989-06-08
Abstract: A gas burner for a domestic cooker is constructed from two co-axial cylindrical housings with an annular chamber (2) formed between the walls of the housings. The gas supply pipe is connected to the outer housing so that a mixture of gas and primary air flows into the annular chamber. The inner housing has a ring of holes (3) in its wall near the upper end. The mixture of gas and primary air flows  through these holes into the circular duct (4) fomred by the inner housing. This mixture is ignited to form tongues of flame which are directed radially inwards. Secondary combustion air is drawn into the duct (4) and flows upwards to the flames. USE - Domestic gas cookers.
Patent DE-3920595-A1 (DE)
Title: Light control device for lighting circuit - uses single light button with different operating times defining several logic switch functions
Inventor: ELSEN PETER
IPC: H05B37/02
Filed: 1989-06-23
Abstract: The control device allows switching of the controlled circuit in 2 or more stages using one or more light buttons.  Pref. a single light button has 2 operating intervals of  different length, e.g. 0.1 sec and 0.75 sec used to input 2 or more different logic switch functions defining the required switching stage. Pref. the light button is activated for a relatively short interval for ON-OFF switching of the lighting circuit, with subsequent operation for a relatively long interval to obtain a dimming function. ADVANTAGE - Allows flexible control with min. number of switches.
Patent DE-3931368-A1 (DE)
Inventor: WIECZOREK JOACHIM
IPC: B08B3/04
Filed: 1989-09-20
Abstract: The invention relates to a cleaning and sterilizing machine for small articles, such as the closure elements for pharmaceutical containers. The machine consists of a treatment vessel which is mounted in a carrier to pivot through 180 DEG  around a horizontal axis, which has a funnel-shaped lower portion comprising a closable discharge opening and to which supply and discharge lines for at least one treatment medium are connected. The discharge opening can be closed by a valve and is also constructed as a charging opening with a coupling member. Connectable in sealing-tight and supporting manner to said coupling member is a charging and discharging container for the articles to be treated which has a matching coupling member disposed at a charging and discharge opening closable by a valve in a funnel-shaped upper portion of the charging and discharge container.
Patent DE-3934719-A1 (DE)
Title: Aluminium tiles for collecting solar energy - have anodised external surfaces with matt black finish
Inventor: LOIDL WALTER
IPC: F24J2/04
Filed: 1989-10-18
Abstract: Solar energy is collected by pipes (3) which are fastened to the rafters (1) of a roof. The pipes run horizontally and parallel to each other and are equally spaced from each other. The pipes (3) serve to support tiles (6) made from aluminium which are shaped so that they can be hooked over the pipes (3). These aluminium tiles have anodised outer surfaces with a matt black finish to absorb solar heat. This heat is then transmitted to water which is circulated through the pipes (3). USE/ADVANTAGE - The tiles have the same external appearance as traditional tiles and avoid the use of unsightly solar panelss.
Patent DE-3935678-A1 (DE)
Title: Coin operated telephone appts. - has cassette of wedge-shaped underside with rectangular plan on appts. housing
Inventor: LENGYEL GABOR
IPC: H04M17/02
Filed: 1989-10-26
Abstract: The coin operated telephone appts. has a housing with a handset support, a dialling mechanism, a calibrated coin inserting plate, a coin collector and operator, a cassette, and an electric circuit. The cassette (9) is in the form of a wedge-shaped underside with a rectangular plan. It can be secured to the housing (1) underside in two positions, offset through 180 deg. The coin collector and operator (23) is insertable into the housing into two positions, mutually offset by 40-55 deg. The coin inlet duct is located behind the coin inserting plate. Pref. the cassette is secured on the housing by a resilient securing hook (11), formed on it. USE/ADVANTAGE - As desk or wall-mounted appts. with easy change-over.
Patent DE-3937402-A1 (DE)
Title: IC-engine cylinder head valve seat - is cast in cylinder head and projection extending into cylinder head away from combustion chamber
Inventor: REHR ANTONIUS DIPL ING
IPC: F01L3/22
Filed: 1989-11-10
Abstract: The valve seat (9), for an exhaust valve, is cast in an I.C.  engine cylinder head (1) provided with cooling channels (5). The valve seat is ring shaped and has its gas-contact surface (10,11) limited by a first plane (E1), adjacent the combustion chamber (6), and a second plane (E2), spaced from the first, both planes being perpendicular to the valve seat central axis (Z). A projection (18) on the valve seat extends away from the second plane into the cylinder head. ADVANTAGE - Improved heat transfer and seat retention in the cylinder head.
Patent DE-3938681-A1 (DE)
Title: Spreading appts. for wood shaving on to strip - includes vibrated equalising belt with profile adjustment in closed control loop with end-prod. belt weigher
IPC: B27N3/14
Filed: 1989-11-22
Abstract: Between the dispensing conveyor belt (3) and the scattering head (7), an equalising belt (9) passes under a roller (10) opposite which a plunger (11) raises and lowers the belt (9) to adjust the depth of the loose material. The plunger (11) is operated by computer control (14) from an optical system 88) measuring the thickness of  material adhering to the strip (1) after it has passed over the belt weigher (13). Homogeneous spread is assisted by vibration (16) of the equalising belt (9). USE/ADVANTAGE - In mfr. of chipboard or fibreboard. Imprecision of scatter can be disregarded and dispensed quantity  regulated without difficulty.
Patent DE-3941323-A1 (DE)
Title: Semiconductor logic circuit with FET(s) forming integral inductor - has three=dimensional structure with switched transistors, conductive tracks and connecting channels arranged in different planes
Inventor: FAUL ROBERT DIPL ING
IPC: H01L27/06
Filed: 1989-12-14
Abstract: A planar conductive track structure (2') is integrated on the main surface (1') of the semiconductor substrate (1) at right angles to a line (3) along its length. The conductivity of the tracks (2') is considerably higher than that of the substrate (1). A corresp. structure (2'') is formed on the free surface of an insulating overlayer (4) and connected to the underlying structure (2') by channels (5) at an acute angle to a direction (z) orthogonal to both the tracks (x) and the lengthwise line (y). The FETs (T1-T3) and their controlling logic (L) may be formed in the main surface (1') or an opposite surface (1'') or in another semiconductor layer on top of the insulation (4). The inductance is varied by switching of the individual transistors (T1-T3). ADVANTAGE - Inductance can be adjusted in discrete steps.
Patent DE-3943386-A1 (DE)
Title: Self-calibration of measurement system - is pref. for physical, chemical or biochemical parameters, without switching of measurement parameter during calibration using offset
Inventor: HORN MICHAEL DR ING
IPC: G01D3/028
Filed: 1989-12-27
Abstract: The transfer factor k of the measurement system is varied in a defined way. The unknown measurement parameter x is measured with an unknown offset b  applied and the transferr factor of the system is set to a value k1 so that the measured value y1 = k1 .X + b. The measurement is repeated with the offset applied and the transfer factor set toa value k2 so that the  measurement result y2 = k2 .
Patent DE-4001056-A1 (DE)
Title: Automatically enlarging selected section of negative film - projecting onto photographic paper section marked out by coding applied by camera as seen in viewfinder
Inventor: RINN JUERGEN DIPL ING
IPC: G03B17/24
Filed: 1990-01-16
Abstract: The method allows selective enlargements to be made from various size, axially symmetrical frame sections of a developed negative film originating from a still camera of fixed focal length, i.e. the desired subject and/or composition fills the whole photographic paper sheet or positive transparency. Markings (8,9) in the camera viewfinder (3a,3b) allow a field of view of desired size to be selected. Characteristic coding corresp. to the markings is exposed on the film simultaneously with taking the picture. This coding is optically scanned in the automatic elnarger and the enlarging lens controlled for opening and focussing so that the selected section fills the whole format of the photographic paper on diapositive. ADVANTAGE - For first time allows selective enlargements to be made by commercial automatic photographic processing from single lens, i.e. fixed focal length, camera. (5pp Dwg.No.2/4) (Printed in week 9132)
Patent DE-4003016-A1 (DE)
Title: Hydraulic system for forming drawing and shaping tools - has adjustable one-way pressured reduction valve in accumulator coupling pressure line
Inventor: REITTER ERHARDT
IPC: B21D24/14
Filed: 1990-02-02
Abstract: The hydraulic system is for a unit forming drawing and shaping tools has two coaxial pistons in a cylinder, with one presenting a differential face.  A central pressure chamber (28) in the unit (10) is enclosed by the differential face (27) and connected by a first pressure passage (43) to an accumulator at a preset pressure, while a second passage (42) connects a chamber (32) enclosed by the rear faces (30,31) of the pistons (14,15) to the accumulator. In the second passage is an adjustable one-way pressure reduction valve, allowing fluid flow from the  accumulator to the second chamber, when a pressure difference across it exceeds the set value. A further such valve is mounted in a passage, parallel to the second one, allowing flow from the chamber to accumulator only when the set pressure difference across it is exceeded. ADVANTAGE - Piston motion in the same direciton as well as in opposite sense, and easy topping up.
Patent DE-4003137-A1 (DE)
Title: Rolling mill branch-off drive mechanism - has differential with output gear trains for individual output shafts, coupled together by further gear train
Inventor: ARNDT HEINRICH DIPL ING
IPC: B02C4/42
Filed: 1990-02-02
Abstract: The branching drive for a rolling mill an input and several output shafts. It incorporates a differential gear train (2), with an input gear (6) driven by the input shaft (6), and two output gears (8,10). Each output gear is coupled by a gear train (12,16) to its respective output shaft (14,18). A third gear train (20) couples the first two gear trains together. ADVANTAGE - Same speed of output shafts even at different loads.
Patent DE-4008841-A1 (DE)
Title: Characteristic altering appts. for stereo scanner - has two or more CCD rows adjustable under control of scanner main computer
Inventor: POITZ HOLGER DIPL ING
IPC: G01C11/02
Filed: 1990-03-20
Abstract: The apparatus for altering the basic characteristics of stereo scanners contains at least two CCD rows (4, 5) arranged in the image plane transversely with respect to the flight direction. The CCD rows are adjustable with respect to each other and to the image acquisition axis. The distance between the rows can be varied. They are mounted on guide rails which lie parallel to the image plane. The adjustments are controlled by the scanner's main computer. The rows can be moved commonly in one direction to compensate for image wandering.
Patent DE-4009261-A1 (DE)
Title: Grinding wheel profiling machine for gang saw blades
IPC: B23D63/12
Filed: 1990-03-22
Abstract: The equipment profiles grinder discs (2) used to sharpen positive-rake teeth (4) of a gang saw blade (5) simultaneously. The discs are fixed to a rotary shaft (6) parallel to the line (7) joining the teeth tips, while the blade is held in a jig (8) performing' the necessary movement.       A template beam (11) is provided, having a profile (12) corresponding to the desired one for the blade, and preferably consists of a blade itself.  This is held in the jig while the shaft is turned very slowly, if necessary by hand.
Patent DE-4010775-A1 (DE)
Inventor: FALK ERNST
IPC: A61B90/00
Filed: 1990-04-04
Abstract: Medical forceps are described, comprising a fixed jaw part (3) and a swivellable jaw part (2), which are assigned a fixed grip part (6) and a swivellable grip part (5). For the purpose of delimiting the pressure force which may be produced at the jaw parts (2,3), the swivellable grip part (5) is divided into two parts (9,10) which, in alignment with one another, are connected in a non-releasable manner to each other by means of a spiral spring element (11). In order to fix the gripping position of the jaw parts (2,3), there are provided on the grip parts locking elements (7,8) which engage releasably with one another. <IMAGE>
Patent DE-4012453-A1 (DE)
Title: Electrochemical etching of cpd. semiconductor crystals for use as phot - using strongly alkaline soln. which features alkali or alkaline earth-cyanide as complexing agent, used for photodetectors
Inventor: SEELMANN-EGGEBERT MATTHIAS DR
IPC: C25F3/12
Filed: 1990-04-19
Abstract: The surface of the cpd. semiconductor wafer is etched electrochemically using the water as anode and an inert cathode. The electrolyte is a highly viscous soln. of a strong base, pref. with a pH of more than 10, pref. using a glycerine-water or ethyleneglycol-water mixt. A constant current is forced for a fixed time, pref. 0.01-10 mA/cm2 for 1-60 mins. The feature is that the electrolyte contains a complex forming cpd. pref. the cyanide of an alkali- or alkaline-earth element, pref. in a concn. of more than 0.01- mole/l. The strong base used is pref. an alkali-hydroxide. USE/ADVANTAGE - The complexing agent prevents redespn. of etched materials on the surface, resulting in a surface with a stoichiometrical compsn. The method also allows accurate calculation of the amt. of material being removed, which corresponds with 0.7mm per mAmp. sec/cm2. The resulting surface is free of oxide-charge and allows both p- and n-type surfaces to be prepared for photo-detection with an improved sensitivity.
Patent DE-4022772-A1 (DE)
Inventor: KERZ LUDO
IPC: H04N1/40
Filed: 1990-07-18
Abstract: The invention concerns a process for the generation and storage of digitized threshold density values for the scanning of a half-tone image pattern, in particular in the form of a colour separation (planes). The threshold density values in a sector of a raster are stored as store words in at least one data store in accordance with a dot function, several dots (raster points) which each include a number of store words are periodically disposed next to and over each other forming a multiple-reference cell (super cell) in the sector. For the sector data-store words, a sorted sequence is determined tailored to the dot function and threshold density values are allocated to the words in the data store in accordance with the position of the word in the sorted sequence, and not in exclusively linear fashion.
Patent DE-4025483-A1 (DE)
Inventor: PETERMANN UDO
IPC: B41J25/308
Filed: 1990-08-10
Abstract: A printing device has an abutment (10) designed to support a recording medium (52), a printing head (32) movable in relation to the abutment (10) in the direction of the lines to be printed, an actuating drive (28, 26, 24) for adjusting the gap between the printing head and the abutment (10) and a pressure element (36) that presses the recording medium (52) against the abutment (10) and that can deviate according to the thickness of the recording medium (52). A magnet (54) is arranged on one of the parts (pressure element 36, part 46 secured to the printing head) and at least one Hall probe (56) is arranged on the other part (part 46 secured to the printing head, pressure element 36), so that the magnet (54) and the Hall probe (56) may be brought to a predetermined printing head position where they coincide and which corresponds to a measurement position. A circuit (60) measures the Hall voltage, adjusts the same according to a predetermined value (set Hall voltage) and controls the actuating drive (28, 26, 24) of the printing head (32) depending on a difference between the real Hall voltage and the set Hall voltage.
Patent DE-4030330-A1 (DE)
Title: Supermarket trolley with U=shaped underframe -  has cross-member at front end covered with shock absorbing material to form bumper
Inventor: WANZL RUDOLF
IPC: B62B5/00
Filed: 1990-09-25
Abstract: The supermarket trolley (1) has an underframe (3) which is provided with at least three wheels (2). The frame has converging long sides (6) which are connected to each other at the narrow end by a cross-member (10). The basket (14) is mounted on supports attached to the rear end of the frame so that the frame forms an additional platform for the transport of goods. The frame cross-member (10) projects beyond the front end of the basket (14) and is covered with a layer of shock absorbing material to form a bumper (17). USE/ADVANTAGE - Supermarket trolley with bumper at front end.