baber/WOPTO huggingface dataset:
Patent DE-3101357-A1 (DE)
Title: Adjustment device for back supports on backrests of seats and the like
Inventor: SCHWARZ JOHANN
IPC: A47C7/46
Filed: 1981-01-17
Abstract: The adjustment device (1) for back supports on backrests of seats, armchairs and the like has a plate-like shaped part (3) which is fixed in an articulated manner on a spring part (4) and can be adjusted in a direction perpendicular to the plane of the backrest and in the vertical direction. The adjustment of the spring part (4) takes place by means of a threaded bolt (12) which engages with a threaded bush (11) and by means of a handle (15) in the transverse direction relative to the backrest. Additionally, the spring part (4) is displaceable along a slot (6) in the frame part (2). The threaded bush (11) is mounted in a disc which has at least one leaf spring (20) whose ends bear against the frame part (2) with spring tension. In this manner, no screw connection or tool is required in order to hold the leaf spring securely connected to the disc. <IMAGE>
Patent DE-3106242-A1 (DE)
Title: Magnetic brush developing device for electrophotographic copiers and printers
Inventor: WOLF GUENTHER DIPL PHYS DR
IPC: G03G15/09
Filed: 1981-02-20
Abstract: In order to develop electrophotographic charge images on a photoconductive layer of a recording carrier by means of a magnetic brush, it is necessary for this brush (43) always to have the same thickness and the same separation from the photoconductive layer (1). Only in this way is there a permanent guarantee of copies which are free from strips and spots and have a uniform blackening. Disadvantageously, the assembly and adjustment of the brush are expensive. Furthermore, the drum (2) carrying the photoconductive layer (1) and the cylindrical drum (29) which is arranged fixed to the frame and coaxially surrounds the magnetic roller (35) have to be precisely manufactured with regard to their roundness. These precision requirements are avoided in accordance with the invention by arranging a layer (3) made from ferromagnetic material on the side of the photoconductive layer (1) averted from the magnetic brush (43). The state of magnetisation of this layer (3) varies due to the magnetic field, which continuously alternates during rotation of the magnetic roller (35). The precision requirements with respect to separation between the magnetic brush (43) and the photoconductor (3) and pertaining to the roundness of the drums (2 and 29) are greatly reduced. <IMAGE>
Patent DE-3108243-A1 (DE)
Title: Drive arrangement, especially for cable drums
Inventor: SCHEUERPFLUG HANS
IPC: H02P1/16
Filed: 1981-03-05
Abstract: Electrical drive arrangements, especially for cable drums, nowadays in general have stationary motors. Since considerably larger torques are required for acceleration than for operation at a constant speed, that is to say the steady-state movement, the motors must be designed to be correspondingly oversize. Since stationary motors already intrinsically have a poor efficiency, the necessity for oversize motors is extremely disadvantageous. In order to overcome oversize stationary motors with the technical and cost problems which occur with them, it is proposed according to the invention that an additional drive (29, 31, 33) be provided, having a motor (29) and transmission (31, 33), and that the additional drive (29, 21, 33) be switched on only during the acceleration phase of the drum (11), while in contrast the stationary motor (21) is switched on throughout operation of the drum (11). <IMAGE>
Patent DE-3111988-A1 (DE)
Title: Device and method for controlling the ignition timing in internal combustion engines
Inventor: HOSAKA AKIO
IPC: F02P5/152
Filed: 1981-03-26
Abstract: From certain changes of the engine speed the electronic device detects whether or not an engine is knocking and then, by the method according to the invention, optimally adjusts the ignition timing of the engine. Neither a pressure sensor nor a vibration sensor is needed for this. The method according to the invention is based on the finding that in a knocking engine, sudden speed changes occur which are caused by erratic pressure changes in the cylinders. In the device, a crankshaft angle sensor (1) generates a crankshaft angle pulsed signal (a). A timer unit (2) emits a program interrupt signal (i) and determines whether or not engine knocking is present. A micro computer (3) generates an ignition timing signal (f) and a closing angle signal (e), so that an ignition signal generator (4) thereupon emits a corresponding ignition signal (j). <IMAGE>
Patent DE-3112598-A1 (DE)
Title: Planet gear
Inventor: KINOSHITA KEIJIRO
IPC: H04N1/19
Filed: 1981-03-30
Abstract: A hollow roll (18) is mounted on an input shaft (10) by means of a left-handed thread in such a way that the sun roll attempts to become unscrewed along the shaft when the shaft rotates in a clockwise direction. The sun roll therefore drives the planet rolls (26) axially along the shafts (30), on which they are rotatably mounted in a hollow roll (36) which is mounted on a drive shaft (46) by means of a left-handed thread in such a way that the hollow roller becomes unscrewed on the drive shaft when it is driven anticlockwise by the planet rolls. The axial movement of the sun roll (18) is completed when a matching initial load has formed between the sun, planet and hollow rolls. <IMAGE>
Patent DE-3114421-A1 (DE)
Title: Arrangement for the analysis of the spectrum of an analog signal
Inventor: TALMI MAATI DIPL ING
IPC: G01R23/165
Filed: 1981-04-06
Abstract: In the real-time analysis of the spectrum of an analog signal, the signal to be analysed is supplied in parallel to a number of channels. The outputs of the channels are sampled by a multiplexer, the output signal of which is supplied via an A/D converter to further chips of the system, for example a computer. To adapt the arrangement to different tasks and for optimising the spectrum analysis, a filter bank according to Figure 1 is used, all of whose parameters are variable and are in each case digitally controlled by a command word. <IMAGE>
Patent DE-3115556-A1 (DE)
Title: Paste, containing an electrically conductive powder, for the formation of a conductive, solid filler in a cavity of a ceramic substrate
Inventor: YOSHIO AKIMUNE
IPC: H05K3/40
Filed: 1981-04-16
Abstract: The invention relates to a paste which contains an electrically conductive powder which is a mixture of a platinum powder and a powder of ceramic material, the ratio of platinum powder to powder of ceramic material being in the range from 51 : 49 to 78 : 22, based on the volume, and the powder mixture having a specific surface area of 1.0 to 10.0 m<2>/g and being uniformly dispersed in an organic carrier liquid, and the ratio of powder mixture to organic carrier liquid being in the range from 70 : 30 to 50 : 50, based on the weight. A cavity in a ceramic substrate of an electrical apparatus having two or more conductive components which are fastened separately to the substrate is filled with this paste and the substrate is then fired in order to sinter the paste in the cavity to give a conductive, solid filler which then constitutes an electrical connection between the two conductive components having low resistance and is in firm and close contact with the conductive components and the wall surfaces which form the cavity.
Patent DE-3116945-A1 (DE)
Title: Circuit arrangement for electronic off-commutation of the stator winding in electronically commutated motors
Inventor: HOLFERT CLAUS DIPL ING
IPC: H02P6/14
Filed: 1981-04-29
Abstract: The invention relates to the circuit arrangement for electronic off-commutation of the stator winding in electronically commutated low-power motors. The aim of the invention is to control the reduction in the coil energy by the coil itself, irrespective of the commutation frequency and of the motor current, such that only small, defined voltage pulses are induced and the coil current falls continuously and completely to zero. This is achieved according to the invention in that two transistors are connected together in such a manner that the collector of one transistor is connected to the base of the second transistor, the collector of the second transistor is connected to the base of the first transistor, and two resistors are in each case inserted between the bases and emitters of the transistors, and a coupling element, which is connected in series with the transistors and resistors, is connected in parallel with the stator winding in such a manner that the components of the circuit arrangement are polarised inversely, that is to say in the reverse direction, when the stator winding is driven by a switching transistor. These two transistors have a different zone sequence.
Patent DE-3121171-A1 (DE)
Title: Broadcast receiver and radio or duplex communications device
Inventor: HWANG HAI-TAU
IPC: H04B1/06
Filed: 1981-05-27
Abstract: The invention relates to a broadcast receiver and a radio or duplex communications device. Through the invention, a device is intended to be produced with which transmitting stations can be received and also radio communications can be carried out. This is highly advantageous for numerous purposes, for example expeditions, mounting climbing etc. The broadcast receiver and the radio or duplex communications device have an antenna (A) and a selector switch (S) which is connected to the antenna and with which the required operating mode can be set. Furthermore, a broadcast receiver (D) is provided with which broadcast transmitters can be received. A transmitter (B), with which radio communications or duplex communications can be carried out, is installed in the device. It is possible to switch over to broadcast reception or transmission mode as required with the selector switch (S). A loudspeaker (F) can be provided for the receiver and a microphone (C) for the transmitter. However, it is also possible to provide a single reception and reproduction component for both the receiver and the transmitter. <IMAGE>
Patent DE-3121581-A1 (DE)
Title: Device for lifting containers by means of fork-lift trucks
Inventor: METTE GUENTHER DIPL ING
IPC: B66F9/18
Filed: 1981-05-30
Abstract: For the transportation of containers in container handling operation, fork-lift trucks are also used. By means of a special support frame (10) as tackle for lifting a container by the support spars (11) of a fork-lift truck, it is possible to lift this without using additional staff and to set it down again at an appropriate place. For this purpose the support frame (10) is equipped with an actuating mechanism for coupling members (18) of the support frame (10), which actuating mechanism can be acted upon by the support spars (11). <IMAGE>
Patent DE-3122635-A1 (DE)
Title: Pyrine derivatives
Inventor: DIMMLER MANFRED DIPL CHEM DR
IPC: C09B29/42
Filed: 1981-06-06
Abstract: The invention relates to compounds of the general formula I <IMAGE> where X and Y are each OH, chlorine or bromine and R is hydrogen or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical. The compounds of the invention are suitable for preparing useful coupling components for azo dyes.
Patent DE-3128265-A1 (DE)
Title: Method and shearing arm for cutting stone
Inventor: MYLEWSKI JOHANN
IPC: E21C35/22
Filed: 1981-07-17
Abstract: The method of cutting stone by means of a shearing arm with a revolving chain is supplemented by cutting with a liquid under high pressure, as a result of which the wear of the shearing chain and the shearing arm is reduced or the follow-up of the high-pressure cutting device to considerable depths of stone is possible in a controlled manner. By means of spray or jet nozzles, the stone is broken coarsely or partly reduced so that the shearing chain clears out the cutting point and also produces cuts of smaller size. A pulsating mode of operation results through the cutting members of the shearing chain passing the nozzle row arranged over the entire length of the shearing arm. <IMAGE>
Patent DE-3129394-A1 (DE)
Title: Attachment piece for a bicycle mudguard
Inventor: GEURTS MARCELLIANUS LEO
IPC: B62J15/00
Filed: 1981-07-25
Abstract: The subject matter of the invention is an attachment piece for a bicycle mudguard, which is distinguished in that it is composed of a cover plate which is connected to a light fitting to form a whole unit. The cover plate is provided with a bent-over edge with which it is pressed with a snapping movement onto the mudguard. The attachment piece is preferably produced from white plastic. <IMAGE>
Patent DE-3130466-A1 (DE)
Title: Contact for a vacuum switch
Inventor: BESTEL E FRED DIPL PHYS
IPC: H01H33/66
Filed: 1981-07-23
Abstract: A contact for a vacuum switch contains a coil winding, which runs in a plane and through which the switch current flows. In this way, a magnetic field running in the axial direction is generated between the contacts. The coil winding is formed by a highly conductive flat conductor which loops around together with a circumferentially externally located flat strip of high-melting-point material to form a strip winding. In order that the current flows optimally through the coil winding, a highly conductive connection to an arc contact covering the contact surface is produced from only the peripheral coil winding. The new contact can be produced cost-effectively.
Patent DE-3133967-A1 (DE)
Title: Process and device for severing concrete structures, in particular those which are radioactively contaminated or not easily accessible
Inventor: KEIL WOLFGANG ING
IPC: C04B41/53
Filed: 1981-08-27
Abstract: A process for severing concrete structures, especially those which are radioactively contaminated or not easily accessible, while avoiding the formation of aerosols, is characterised in that the cement content of the concrete is chemically dissolved at the severing points and transported away together with the released gravel fraction.
Patent DE-3134277-A1 (DE)
Title: Analog frequency divider
Inventor: GIER KARL MATTHIAS DIPL ING
IPC: H03B19/00
Filed: 1981-08-29
Abstract: In an analog frequency divider having an oscillator which oscillates freely at the divided frequency, the input of a frequency multiplier is connected to the output of the oscillator. The signal to be divided is applied to the output of the frequency multiplier. The frequency multiplier exhibits a charge-storage diode. The frequency multiplier simulates to the oscillator a load fluctuation in accordance with the signal to be divided, which fluctuation causes a tracking synchronisation of the oscillator. The analog frequency divider is suitable for high and very high frequency signals and exhibits a wide hold-in range. <IMAGE>
Patent DE-3134473-A1 (DE)
Title: Ballastless superstructure for railways
IPC: E01B1/00
Filed: 1981-09-01
Abstract: In a ballastless superstructure for railways, noise-prevention measures on the free surfaces of the sub-construction in the region of the rails are proposed. Expediently, arranged in the sleeper compartments are structural parts (5) made of no-fines concrete, so-called single-size concrete, which, secured against positional changes by grouting (14), are connected to the sub-construction and which are provided with profilings at least on the upper side to increase the surface area. Corresponding to the comparatively large and highly porous ballast surface, the surface area of the structural parts (5) is thus increased in such a manner that the noise arriving from all directions can penetrate into as many as possible of the open pores of the material structure and is destroyed inside the structural parts. <IMAGE>
Patent DE-3136760-A1 (DE)
Title: Self-adhesive tape with expansion compensation
Inventor: RAUE KLAUS ING GRAD
IPC: C09J7/20
Filed: 1981-09-16
Abstract: The invention relates to an adhesive tape with self-adhesive coating for sticking over butt joints on slabs in which an expansion movement has to be taken into account. Self-adhesive tapes are used, for example, in construction and, in particular, in the case of roof-insulating slabs, where, because of the different temperatures between summer and winter, a measurable contraction and expansion of the slabs takes place at the butt joints. In the known adhesive tapes, bonded on in a flat manner, the resulting tensile force is introduced completely into the adhesive tape, so that its strength is not ensured in the long term. The adhesive tape according to the invention, by contrast, rolls on the construction slabs in a similar manner to a vehicle track and only negligibly small tensile forces are introduced into the adhesive tape.
Patent DE-3142151-A1 (DE)
Title: Electrical machine having a terminal box built onto its housing
Inventor: HEERLEIN MANFRED ING GRAD
IPC: H02K5/04
Filed: 1981-10-23
Abstract: The invention relates to an electrical machine having a terminal box built onto its housing. A sealing element (1 and 2) is inserted between this terminal box (9) and the housing (10). This sealing element (1 and 2) has at least one through-opening for the electrical leads (14) which pass from the terminals (11) of the terminal box (9) to the stator winding (12) or to the brushes (13) of the machine. In order to keep the leads (14) at an adequate safety distance from the rotating parts of the machine, it is proposed that at least one retaining part (4 and 5), which guides the leads (14) which pass through approximately parallel to the machine axis, is provided on the sealing elements (1 and 2). <IMAGE>
Patent DE-3146945-A1 (DE)
Title: Camera having a variable directional microphone
Inventor: KOMINE YOSHIO
IPC: G03B31/00
Filed: 1981-11-26
Abstract: A camera is described, such as a video camera, an 8 mm-sound film camera or the like having a varifocal lens, a sound pick-up microphone with variable directional action and a device which changes the directional action of the sound pick-up microphone with interaction with the varifocal lens; the camera is characterised in that it is furnished with a changeover device, which interrupts the interaction of the device for changing the directional action with the focal length setting, and also with an adjustment device for manual adjustment, with which the directional action of the sound pick-up microphone can be adjusted independently of the focal length setting of the lens.
Patent DE-3147423-A1 (DE)
Title: Device for producing electrical pulses
Inventor: BAUM WALTER DIPL PHYS
IPC: H02N11/00
Filed: 1981-11-30
Abstract: A device for producing electrical pulses is specified, which operates using the Wiegand effect. At least one tube (1) is used in the device, around which tube a coil (2) is wound. The wall of the tube (1) is treated so that an outer hard-magnetic layer and an inner soft-magnetic layer are produced. A permanent magnet (11) is preferably used to produce an alternating field. <IMAGE>
Patent DE-3203603-A1 (DE)
Title: Ventilation device for a garage
Inventor: JOISTEN KURT
IPC: B08B15/00
Filed: 1982-02-03
Abstract: Garage (10) contains a fan (17) which sucks in outside air via an air inlet and conveys this to an air duct (16). The air duct (16), which passes along the ceiling (13) and the lateral longitudinal walls (11, 12) of the garage (10), has distributed openings (18) through which the air flows into the garage. The air enriched with moisture leaves the garage through an air outlet (21) arranged remote from the openings (18). <IMAGE>
Patent DE-3203836-A1 (DE)
Title: Strap for connecting wooden strips
Inventor: MOTTA ALFREDO
IPC: F16B15/00
Filed: 1982-02-04
Abstract: In a strap which is provided for connecting wooden strips and the like, the two side edges of a base which is essentially rectangular and has a central dome with an essentially truncated-conical jacket of semicircular cross-section are provided with essentially right-angled bends which overall diverge against an end edge of the base which can be folded, and in each case consist of a converging first partial surface connected to the associated side edge of the base, of a diverging second partial surface and of a converging third partial surface which is preferably essentially parallel to the first partial surface. Such straps can be combined to form a stack arrangement as a result of the bends in the base.
Patent DE-3204130-A1 (DE)
Title: Bath and circulation thermostat
Inventor: HUBER PETER
IPC: G05D23/19
Filed: 1982-02-06
Abstract: A bath and circulation thermostat has an essentially two-part housing with a bottom part and a cap part. Within said housing, the thermostat units, in particular the receptacle as well as the cooling device and the heating device are accommodated. The bottom part is advantageously provided with receiving profiles, insertion holes and the like for connecting and linking the units. As a result, the thermostat can be assembled in a simple manner and with relatively few subassemblies, and in particular is also readily accessible for maintenance etc. The bottom part, with its concave and convex structures, is expediently produced in one piece, preferably from a moulded part, especially from plastic.
Patent DE-3211970-A1 (DE)
Title: Heat-conducting cover board for panel heating systems and process for its production
Inventor: PIRCHL GERHARD
IPC: F24D3/14
Filed: 1982-03-31
Abstract: This cover board for panel heating systems, in particular floor heating systems, contains in a heat-insulating supporting board (2) a multiplicity of heat-conducting elements (4), which form in it heat bridges leading from one side of the board to the other. The heat-conducting elements (4) consist of a material which has a higher coefficient of thermal conductivity than the material of the supporting board, for example of a magnesium-oxide or aluminium-oxide sintered material. The heat-conducting elements (4) may be fitted as prefabricated parts into the supporting board (2) or produced by pressing a plastic, solidifying heat-conducting cement mass into clearances (2c) in the supporting board (2). There is preferably a heat-insulating air or plastic layer (5) between the heat-conducting elements (4) and the material of the supporting board. With approximately the same constructional properties as a conventional building board corresponding to the supporting board (2), the cover board is a better heat conductor. In the case of a panel heating system, the heating elements (9) are laid in grooves (13) of an underlay base (12) and the grooves (13) are filled with a heat-conducting mass (15). A thermally conducting layer (6b) joins the cover boards (10) to the underlay base (12). Such panel heating systems have a better control response with shorter heating-up and cooling-down times, thereby saving energy. <IMAGE>
Patent DE-3222521-A1 (DE)
Title: Method and apparatus for harvesting beet leaves
Inventor: BLEINROTH HEINRICH
IPC: A01D23/02
Filed: 1982-06-16
Abstract: The invention relates to a beet-leaf harvesting apparatus on a beet-harvesting machine, consisting of a leaf chopper with a closed conveying device and of a beet-top device arranged behind the latter and having a topping knife and a tracer wheel for height adjustment. The object of the invention is to provide a beet-leaf and beet-top harvesting machine which tops low-lying beet and beet grown high out of the ground at the desired point exactly and then conveys, at a low outlay on working means, the cut-off beet top forwards, and if desired even into the leaf chopper. The object is achieved, according to the invention, in that there is installed between the topping knife and tracer wheel a lever transmission which increases the distance between the shaft of the tracer wheel and the topping knife when the tracer wheel is lifted higher, in that there is arranged between the leaf chopper and the tracer wheel a band-conveyor device, the band or bands of which loop on the one hand round the tracer wheel and on the other hand round a deflecting roller arranged in front of the tracer wheel, and in that the tracer wheel, on circumferential circles and/or each band, is equipped with needle-shaped drivers arranged radially or perpendicularly to the surface.