baber/WOPTO huggingface dataset:
Patent DE-3036726-A1 (DE)
Title: Lawm-mower cutting height adjustment system - incorporates wheel axle flattened at centre bearing against stop and released by bending
Inventor: HENSBERG FRIEDRICH ING GRAD
IPC: A01D34/74
Filed: 1980-09-29
Abstract: The mechanism adjusts the cutting height of a lawnmower, having two wheels on an axle which fits in sets of notches one above the other in the frame. The central part of the axle bears against a stop holding it in the notches at the sides. The axle (7) bearing the two wheels (3), and which is of round cross-section, is flattened (1) at the middle. This flattened portion can extend for roughly half the total shaft length, and it can be hammered flat. The design requires little effort to bend the shaft in order to free it from the notches.
Patent DE-3039195-A1 (DE)
Title: Suction duct for developer tank - has widened head to ensure total removal of fluid
Inventor: BOCKEMUEHL-SIMON JOHANNES JUER
IPC: G03D3/02
Filed: 1980-10-17
Abstract: The widened head (30) has an area greater than the cross sectional area of the end of the suction pipe (25) and is spaced at a close distance (32) from the floor of the tank. The close spacing and the wide head prevent collection of residual fluid and adhesion between the head and the tank bottom. For rotating processing tanks the head is shaped to the curvature of the tank. The spacing decreases progressively from the outside of the head to the inside duct. Spacers can provide a simple setting aid for the spacing and the head can be cut with radial grooves for added flow control.
Patent DE-3040530-A1 (DE)
Title: Ignition circuit for semiconductor switch - has piezoelectric chip coupling AC excitation signal to control input of switch
Inventor: MAGORI VALENTIN DIPL PHYS
IPC: H03K17/94
Filed: 1980-10-28
Abstract: A piezoelectric chip (1) has two electrodes (13,14) on one side and two corresp. electrodes (13',14') on the other side. The piezoelectric chip decouples the input control circuit (9) from the semiconductor switch (10), which may be a triac, a thyristor or a MOS power FET. One pair (13,13') of electrodes acts as input and is connected to the output of the control circuit and the other pair (14,14') acts as output and is connected to the semiconductor switch. The electrodes may take various forms, e.g. concentric rings, rectangular or semicircular. An additional pair of electrodes may be incorporated to provide a second output for controlling a second semiconductor switch. The frequency of the a.c. voltage produced by the control circuit and the resonant frequency of the piezoelectric chip are matched to one another for a given vibration mode of the chip.
Patent DE-3045162-A1 (DE)
Title: Probe for dental examination - has optic fibre cable and video camera
Inventor: LEMKE NORBERT
IPC: A61B1/12
Filed: 1980-12-01
Abstract: This probe is designed for dental examinations and replaces the dental mirror. It presents an image of the region on a T.V. monitor screen. This is achieved by means of optic fibre cable and a video camera. Light which is transmitted via an optic cable (13) illuminates the region of interest in the patient'smouth. An image of this region is transmitted via a lens (16), a reflecting mirror (12) and another lens (17) to a video camera (8) to which the probe (1) is attached. Air pumped through a channel (18) passes across the first lens (16) to prevent condensation.
Patent DE-3102915-A1 (DE)
Title: Process for producing a quilted shoe
Inventor: PROEBSTL ROBERT
IPC: A43B9/12
Filed: 1981-01-29
Abstract: The invention relates to a process for producing shoes, the upper of which is connected in the front part to the sole by means of a seam guided in a gap of the sole. In order to simplify production and make it more efficient and to improve durability, it is proposed that an edge strip narrowing towards the middle of the sole be split off in the front part of the sole by means of a splitting cut starting from the circumferential edge of the sole, and that the upper is then quilted together with this edge strip, and finally the split-off edge strip is connected again to the remaining sole by adhesive bonding.
Patent DE-3103853-A1 (DE)
Title: Laundry strip-off device for a laundry mangle or the like
Inventor: MEYNBERG WOLFGANG
IPC: D06F67/06
Filed: 1981-02-05
Abstract: The subject of the invention relates to a laundry strip-off device for a laundry mangle or the like, which has laundry strip-off elements (7) arranged releasably in a carrier extending over the entire working width on the laundry exit side (6) of the laundry mangle. The laundry strip-off elements (7) are arranged tangentially to the roller surface of the mangle roller (1) and are held in associated catch mountings (18, 19, 20). Each laundry strip-off element (7) is provided with a strip-off tip (16) which is directed opposite to the laundry transport direction and which rests resiliently on the roller surface of the mangle roller (1). If the laundry strip-off element (7) becomes hooked on the transported laundry article, the strip-off element is pushed out of the catch mounting (18, 19, 20) in the tangential direction to the roller surface. <IMAGE>
Patent DE-3107164-A1 (DE)
Title: Method of producing rotary shaving cutters
Inventor: SINNING VALENTIN
IPC: B23F21/28
Filed: 1981-02-26
Abstract: Method of producing a clearance space in the tooth-root area of rotary shaving cutters, the tooth system of which is produced by milling, in which the clearance space is produced in one operation with the use of a form cutter together with the tooth system of the shaving cutter.
Patent DE-3110072-A1 (DE)
Title: Circuit arrangement for attenuating two audio channels in opposite directions
Inventor: GROER GUENTHER
IPC: H04S7/00
Filed: 1981-03-16
Abstract: The circuit is called a panorama circuit. Between the signal lines (1, 2) of the audio channels, a tandem potentiometer (4-7) is inserted which consists of potentiometers with coupled taps (6, 7). Their resistance tracks (4, 5) are connected with one end each to one signal line (1, 2) each and with their other end to earth. The potentiometer taps (6, 7) are coupled to one another in such a manner that they increase the effective resistance value in one potentiometer and decrease it in the other potentiometer when moved. According to the invention, the resistance tracks (4, 5) are connected to the signal lines (1, 2) of successive amplifier stages and the potentiometer taps (6, 7) are earthed. This prevents interruptions in the signals due to interruptions at the tap points of the potentiometer taps (6, 7). <IMAGE>
Patent DE-3110136-A1 (DE)
Title: Process and apparatus for operating a heating system
Inventor: RUTSCH HELMUT
IPC: F24D19/10
Filed: 1981-03-16
Abstract: The invention relates to a process for operating a circulating pump in heating systems. It has been shown, during the operation of heating systems with a mixing valve, that the drive motor for the circulating pump often breaks down. This is presumably attributable to the overloading of the drive motor, since during long standstill times, lime settles in the pump, and consequently a relatively high resistance has to be overcome when the pump is started up. In order to eliminate this source of risk, after a lengthy standstill time, when the mixing valve is in the region of the "closed" end position the motor of the circulating pump is switched on automatically for a predetermined time and is switched off automatically for a predetermined second time. However, when the mixing valve is not in the region of the "closed" end position, the motor of the circulating pump remains permanently switched on. As a result, the lifetime of the drive motor of the circulating pump is increased significantly, and there is no need to exchange the circulating pump even after only a few years or a short operating time, as has been assumed to be unavoidable hitherto. <IMAGE>
Patent DE-3114534-A1 (DE)
Title: Method of manufacturing a shoe insert, in particular an orthopaedic shoe insert and a shoe insert manufactured according to this method
IPC: B27N5/00
Filed: 1981-04-10
Abstract: In the method of manufacturing a shoe insert, a mixture of cork granulate and binders is pressed together in a pressing mould in a single operation to form the finished lower part. As a result, cork plates as starting material as well as further processing stages can be eliminated. Subsequent work for making different thicknesses of the lower layer are also eliminated, so that no material loss arises as a result of subsequent abrading. The lower part of the shoe insert manufactured according to the method is designed to be resilience-free in its finished form. As a result, an adhesive layer which keeps the lower part in shape is not necessary. Rather an adhesive layer which can be activated by heat can be used so that an upper layer of the shoe insert can be removed by heating the adhesive layer in order, for example, to adapt a pad in its position and/or size to the foot or in order to apply a new upper layer.
Patent DE-3121301-A1 (DE)
Title: Internal combustion engine
Inventor: DROESCHEL HELMUT
IPC: F02B75/02
Filed: 1981-05-29
Abstract: For vehicles and stationary drives for improved utilisation of the fuel due to increased thermal efficiency, with 2 + 1 cylinders as in-line engine and with 4 + 2 cylinders as in-line, horizontally opposed or V engine. Between two small outer cylinders (1, 3), which function phased in a 4-stroke cycle, there is a larger cylinder (2) without ignition which functions on a 2-stroke cycle and has three valves (13, 14, 15). The combustion gases are not discharged from the two outer cylinders (1, 3) directly into the exhaust but alternately via the larger middle cylinder (2). The residual excess pressure here has a negative effect on the respective small pistons (1, 3), but a positive effect on the slowing large piston (2), so that additional mechanical work is fed to the crankshaft (4). Advantages: increased thermal efficiency and hence lower fuel consumption, simple construction, regular ignition sequence, good balancing of masses (without any balancing shaft), various designs are possible. The exhaust noise is softer because the gases can no longer expand in the engine. <IMAGE>
Patent DE-3131223-A1 (DE)
Title: Draw-in or blow-off grating
Inventor: SOMMER HORST
IPC: F24F11/02
Filed: 1981-08-06
Abstract: Draw-in or blow-off grating with lamellae and transverse struts arranged inside a frame. The lamellae are designed to run over virtually the entire depth of the frame and in each case receive a transverse strut in an integrated arrangement. Each lamella preferably consists of a number of assembled part sections which enclose at least partially with the adjacent part section an angle < 180 DEG . <IMAGE>
Patent DE-3141481-A1 (DE)
Title: Domestic cigarette store
Inventor: EDION BODO
IPC: A24F15/02
Filed: 1981-10-20
Abstract: Published without abstract.
Patent DE-3141788-A1 (DE)
Title: Lamp, in particular electric torch
IPC: F21V23/00
Filed: 1981-10-21
Abstract: The invention relates to a lamp having a luminescent head which has a concave mirror reflector, and having a battery holder which has a carrier (holder) for a light source, in particular an incandescent lamp, the concave mirror reflector and the light source of the lamp being adjustable in the axial direction with respect to one another. So that it is possible for the light source, for example an incandescent lamp, to be arranged precisely in the axis of the concave mirror reflector, the carrier of the light source, for example an incandescent lamp, is constructed in one piece with the battery holder. In addition to enhanced precision and thus improved light values of the lamp, this design also enables a more rational mass production of such a product. Moreover, it is shown to construct the guide pin, the guide ways and the switch housing likewise in one piece with the battery holder. Furthermore, it is shown how it is possible for the contacts of such a lamp to be undertaken more effectively and rationally. Furthermore, methods for producing such a lamp are described.
Patent DE-3143805-A1 (DE)
Title: Device for connecting cable racks
Inventor: PETERSON RUNE VALDEMAR
IPC: H02G3/06
Filed: 1981-11-04
Abstract: A device for connecting cable rack sections to one another contains a pair of longitudinally narrow connecting pieces (4), of whose longitudinal sides one is bent through 180 DEG  and one (5) is bent through 90 DEG  in order to grip the struts (1, 2) of the cable rack, each having an associated clamping plate (6) and screw (7) for firmly clamping the connecting piece (4) to the struts of the cable rack. The connecting piece (4) is designed with two holes (9) and the clamping plate (6) is provided with two studs (11), in order to add impressions (15) into the holes (9) of the connecting piece when clamping the struts (1, 2) of the cable rack between the clamping plate (6) and the connecting piece (4), by tightening the screw (7) onto the strut material. A lobe (13) at one end of the longitudinal side (5) of the connecting piece (4) which is bent through 90 DEG  is produced by notching (14) at an oblique angle with respect to the longitudinal side (5) and is intended to be bent against the interior of the connecting piece once the cable rack has been inserted into the connecting piece (4) in order to support the strut (1, 2) of the cable rack. The hole in the connecting piece (4) for the screw (7) is arranged asymmetrically on the connecting piece (4), when seen in the longitudinal direction. <IMAGE>
Patent DE-3144305-A1 (DE)
Title: Device for mixing granular or powdery material
Inventor: FLEER HERBERT
IPC: B01F7/08
Filed: 1981-11-07
Abstract: The invention relates to a device for mixing granular or powdery material, consisting of a mixing vessel with two mixing and conveying worms extending parallel to one another in a horizontally arranged plane and motor-driven in opposite directions. Each mixing and conveying worm designed as a full worm is provided with a plurality of turns of equal pitch, and following its respective conveying stage each worm has a turn of opposite conveying direction, the end face of the mixing and conveying worm being offset at 180 DEG  (degrees of angle) relative to the starting face of the worm turn of opposite conveying direction on the common worm axis.
Patent DE-3150718-A1 (DE)
Title: Material based on synthetic resins which can be used for painting
Inventor: KARSTEN WERNER
IPC: C08K7/26
Filed: 1981-12-22
Abstract: Materials based on synthetic resins which can be used for painting are described which are prepared from still-reactive paint waste which is produced during painting and, after substantial removal of the liquid constituents, is mixed at low temperature with additives in an amount of from 5 to 90% by weight and is cured. These materials preferably contain vibration-damping materials, for example expanded clay, and can be used, in particular, as soundproofing or panelling materials in or on motor vehicles.
Patent DE-3206758-A1 (DE)
Title: Fence structure made of metal, in particular of steel
Inventor: FIPKE BORIS
IPC: E04H17/16
Filed: 1982-02-25
Abstract: The invention relates to a fence structure according to the main patent (German Patent Application P 3109234.9-25), having grid bars (9) arranged in fence spaces (2). The fence spaces (2) exhibit in each case one upper chord (8) and one lower chord (7), which are connected on both sides to posts (1) anchored in a foundation (5, 6). The posts (1) are formed by tubes or rectangular tubes. The grid bars (9) comprise casing tubes, arranged closely adjacent to one another in pairs, with steel cores which are loosely rotatable therein. The casing tubes are connected to one another in pairs at least in a central region (12). The grid bars (9) are inserted into cut-outs (10, 11) in the upper chord (8) and in the lower chord (7), which are likewise designed as hollow box profiles. The lower chords (7) are directly connected on both sides of the posts (1) to the strip foundation (6) by means of screws (18) and dowels (19). The posts (1) are prevented from being uprooted by an additional anchoring means (15, 16, 17) which is concealed by the lower chords (7). The upper chords (8) are bolted on both sides to the posts (1) by secured screw bolts (25). <IMAGE>
Patent DE-3209134-A1 (DE)
Title: Device and method for continuous cleaning of granular material
Inventor: MAURER RAINER
IPC: E01H12/00
Filed: 1982-03-12
Abstract: The invention relates to a device for cleaning the sand in children's playgrounds. The motor-driven device works continuously, the sand being received by a conveyor and mechanically cleaned with a sieve. Gas-driven burners can be used to heat the sand briefly in order to make it germ-free thereby. Furthermore, the sand can be admixed with a disinfectant, especially a lactic acid product which is safe for children, and is thereby disinfected in the long term.
Patent DE-3209593-A1 (DE)
Inventor: BOECKER JUERGEN DIPL PHYS DR
IPC: F42B12/06
Filed: 1982-03-17
Abstract: An improved subcaliber fin-stabilized penetrator projectile of an equal diameter along its whole cylindrical length which is made of a high density, ductile, heavy metal. The herein described penetrator has a steel ballistic hood coaxially mounted on the front end thereof and a plurality of frontal cores mounted one behind the other in an axial direction behind said ballistic hood, and a main penetrator core arranged behind the frontal cores. Detachably connected to said ballistic hood and extending from said hood to the frontal region of the main penetrator core is a cylindrical casing of heavy metal having a smooth external surface and an outer diameter which is equal to the outer diameter of the main penetrator core. The plurality of frontal cores are partially mounted in said cylindrical casing, and partially in said ballistic hood. The main penetrator core of the projectile has a cylindrical front end extension of smaller diameter with which the casing is rigidly attached, a transition piece and a frustoconical stem. The frontal cores are equal in diameter and have an axially centered bore and a recess, and have rear faces and front faces. The ballistic hood is detachably mounted and holds a plurality of said frontal cores together against one another inside said casing in a play-free manner, with the frontal cores inner surfaces snugly fitted against the outside surface of the stem, and said cores outer surfaces snugly fitted against the inner surface of the said casing.
Patent DE-3211131-A1 (DE)
Inventor: NIKL JOHANN
IPC: H04N5/38
Filed: 1982-03-26
Abstract: 1. A smear signal for bandwidth-limited, frequency modulated television channels, comprising a delta voltage which is additively superimposed upon the television signal prior to the frequency modulation and which is synchronised with the vertical frequency, characterised in that there is provided a defined phase-like allocation of the inversion points of the delta voltage to one of the two half-picture starts, which after a freely selectable period P changes from the one half-picture start to the other half-picture start.
Patent DE-3212504-A1 (DE)
Inventor: DURAND MARCEL JOSEPH PAUL EMIL
IPC: F02P19/02
Filed: 1982-04-03
Abstract: A reciprocating piston internal combustion engine having a plurality of heads, a glow plug associated with each one of the pistons, a source of DC voltage, and a control for providing heating power to the glow plugs. The engine also has engine oil and transmission oil flowing therethrough, and a fan for cooling the oil. A first switch turns the fan on and off. There is included a central electronic control which includes thermistors for sensing a temperature related to the temperature of the engine and for providing a connection from the source of DC voltage to the glow plugs when the sensed temperature is below a predetermined value and for disconnecting the source when the sensed temperature is above the predetermined value. A duty cycle rate generator alternately connects and disconnects the source of DC voltage to the glow plugs above the preset value at a duty cycle rate which ranges from 0 to 100 percent and which depends on the voltage level of the source of DC voltage. The thermistors are disposed to measure the temperature of the first and eighth heads and the engine and transmission oil, and a second controller controls the first switch to turn the fan on and off depending on the temperature sensed by the temperature sensors. The control includes a second duty cycle rate generator, also ranging from 0 to 100 percent, but dependent on the magnitude of the most significant sensed temperature.
Patent DE-3215600-A1 (DE)
Title: Starting impeder
Inventor: GONDOLF FRIEDRICH WILHELM
IPC: B60R22/48
Filed: 1982-04-27
Abstract: Interruption switches (3) are attached to the lock (1) of the safety belt. The interruption switch (3) interrupts the circuit between the ignition lock and starter by feeding the cable (4) from the ignition lock to the starter via the interruption switch (3). A motor vehicle can only be started if the clip (2) of the safety belt is inserted into its lock (1) since the clip (2) then actuates the interruption switch (3) and closes the circuit (6). When the safety belt is put on, the clip (2) is removed from the lock (1) and the interruption switch (3) goes back into the interruption position (5) under spring pressure. All the electrical functions necessary for safety are retained here. <IMAGE>
Patent DE-3219116-A1 (DE)
Title: Portable, collapsible back support
Inventor: ZAJONZ ARNOLD
IPC: A47C9/10
Filed: 1982-05-21
Abstract: The portable, collapsible back support makes it possible to lie comfortably (with variable height) on a beach or meadow and, in the collapsed state, can also be used as a beach bag. It can be manufactured in various designs and from any materials suitable therefor. The associated drawing illustrates an exemplary embodiment of this back support. It is composed of the upper part (1) and the lower part (2), which are held together by means of a hinge connection (3). In between there is attached the adjusting piece (4), with the aid of which the height of the support can be adjusted. This embodiment can be carried by the handle (5) as a bag, on which side pockets (6) accommodating various utensils, such as cream, towel, etc., are arranged. <IMAGE>
Patent DE-3220847-A1 (DE)
Title: Device for preserving connecting bars for concrete components
Inventor: MEYERS CLAUDE
IPC: E04G21/12
Filed: 1982-06-03
Abstract: The invention relates to a device, intended for insertion into a formwork for a concrete component, for preserving connecting bars to be anchored in the concrete component, which device possesses a preserving element to be fixed in the formwork, in which preserving element the end regions of the connecting bars to be bent out for connection of a further concrete component to be connected subsequently are arranged, and from which anchoring regions of the connecting bars, intended for anchoring in the concrete component, project on one side. The novel feature according to the invention of this device consists in that the preserving element is a box produced from plastic or metal, preferably sheet metal, of at least two parts which are detachably fixed to one another, and in that the connecting bars are secured to one of the parts in such a way that they project with their anchoring regions through the one part out of the interior of the box and lie with their end regions in the interior of the box.