baber/WOPTO huggingface dataset:
Patent DE-2906146-A1 (DE)
Title: Mine rock support hydraulic prop structure - has piston and ring chambers linked between frames and mutually blocking return valves
Inventor: KOPPERS MANFRED ING GRAD
IPC: E21D23/16
Filed: 1979-02-17
Abstract: Effective piston faces of frame props are twice as large as ring faces, in the support construction in mines, esp. in a transitional area. All the prop piston spaces of one frame are connected with all the ring spaces of those in the adjacent frame, via a switching valve and over current leads. Sections of leads connected to piston and ring spaces in one frame are interconnected by a cross lead containing two mutually blocking return valves - the valve blocking towards the piston spaces being hydraulically releasable by pressure from these. This permits continuous rock support without alternating loads, in all phases.
Patent DE-2907587-A1 (DE)
Title: Pile construction system using electrical pulses - producing discharges which, in turn, generate hydraulic shock waves permitting tube to pass into ground
Inventor: GUSEV VLADIMIR ALEKSEEVITSCH
IPC: E02D5/38
Filed: 1979-02-27
Abstract: A tube is first driven into the ground to the wanted depth and cement pumped into it. The tube is then removed and the cement compressed. The tube is driven into the ground by passing electrical pulses through a liq. fed to the tube. These pulses cause electrical discharge in the ground thereby producing hydraulic shock waves in the lower part of the tube. The cement mix is compressed in the same menner by generating electric discharges. The amount of energy needed to produce shock waves is supplied and can be varied by changing the pulse repetition frequency (0.1-10Hz) in order to produce piles of different diameters.
Patent DE-2919532-A1 (DE)
Title: Automatic system for foul sludge fermentation - having vessel with upper and lower chambers with weir over which liquor flows if pressure in lower chamber is released
Inventor: MEIER KLAUS
IPC: C02F3/28
Filed: 1979-05-11
Abstract: Process for recovering CH4 etC. as fuel from foul sludge has a vessel with an upper and lower chamber. A line runs from the base of the lower chamber into the base of the upper chamber. The upper chamber contains a flaot. As anaerobic fermentation occurs, a pressure develops above the liquid in the lower chamber causing liquid to displace up into the upper chamber. In the centre of the lower chamber there is a conical weir. This has a non-return valve mounted in the pipe below it. As liquid is displaced to the upper chamber, the level inside the weir drops. However, if the pressure is released and the liquor flows back, the valve prevents it rising inside the weir. The liquor then overflows over the weir and any surface crust gets broken up. Used for processing agricultural waste to a useful fuel. Used the "Berlin System" but allows automatic cycling of the liquid surface to break up crust merely by releasing the system pressure periodically.
Patent DE-2919644-A1 (DE)
Title: Lockable centrifugal clutch for road roller - has ring sliding on hub fitting over faces on friction bodies
Inventor: SCHEUFFELE GEBHARD
IPC: F16D43/18
Filed: 1979-05-16
Abstract: The centrifugal clutch has friction bodies guided radially on a shaft so as to press against a bell-housing, and retracted by springs. Control members moving axially in relation to the bodies lock them in the inner position. The bodies (13) have axial faces (24) and the control members are formed by a ring (19) working on the hub(2) in which the bodies are guided. A portion (23) of the ring protruding in the axial direction fits over the faces on the bodies.
Patent DE-2922877-A1 (DE)
Title: Brush manufacturing system using injection-moulded brush bodies - sets tuft ends in openings in mould using sealing means
Inventor: ZAHORANSKY HEINZ DR ING
IPC: A46D3/00
Filed: 1979-06-06
Abstract: The brush is made by taking tufts of bristles from a supply, feeding them to a mould where their anchor ends are connected to the corresp. brush body. When the tufts are inserted into openings in the injection mould they are at the same time radially compressed at least at their anchor ends which project into the mould hollow where they are secured by the surrounding injection moulding material. Sealing means are provided in the area of the openings of the mould to keep the tufts sealed in the openings at least during part of the injection moulding process which forms the brush body.
Patent DE-2923386-A1 (DE)
Title: Light sensitive field yielding increased number coordinate points - has two photoconductor arrays turned through ninety degrees
Inventor: MURAY JULIUS JOSEPH
IPC: G01D5/26
Filed: 1979-06-08
Abstract: A light target array is formed by a series of photoconductors held in a frame as a near enough flat surface, with the long conductors running straight and parallel to each other. At the one end face of each of the conductors a light sensitive device is fitted which generates a signal when a beam of light strikes the conductor laterally. The two coordinates of a graph may be derived from two similar arrays at right angles to each other. Transfer of light is prevented by a layer of material impermeable to light between each conductor, whilst the propagation of the signal is reinforced by light scattering elements in the conductor. The target array is easily assembled and cheap to produce and in relation to the large number of coordinate points delivered, only a small number of light sensitive devices are needed.
Patent DE-2929858-A1 (DE)
Title: Monitoring device of brake fluid reservoir for e.g. motor vehicle - has float-operated switch which actuates warning lamp when fluid level drops below min.
Inventor: QUITMANN HORST
IPC: H01H35/18
Filed: 1979-07-24
Abstract: The brake fluid reservoir includes a pair of contact pins (12) mounted in the upper part (10) of the reservoir and engageable by a float operated disc (16) which electrically bridges the contact pins when the fluid level is low. The pins (14) are manually pivotable about an annular locating member (25) so that movement (28) of the pins (14) can be effected to perform a checking operation of the warning circuit. Alternatively the pins are axially movable into contact with the disc, or can be interconnected by a metal bridge in an opening in the upper part of the reservoir; the opening exposing the middle parts of the contact pins.
Patent DE-2929925-A1 (DE)
Title: Heat insulating structural panels - contg. specified percentage of waste rubber tyre shreds
Inventor: GROB KARL DR
IPC: E04B1/76
Filed: 1979-07-24
Abstract: Parent Patent No.2652001 described a structural element which has an improved heat insulation by air spaces of 4 mm left between the individual panels. The insulation capacity can be further improved by making at least the outer panel itself of insulating material. The pref. addn. is up to 95 wt.% of shredded used tyres. The rest consists of fibres, such as asbestos, wood or textiles, with an adhesive binder. In the case of concrete or gypsum, a max. of 30 wt.% of shredded rubber is recommended. Such panels are easy to cut and to install. They create a useful application for otherwise wasted used tyres.
Patent DE-2931585-A1 (DE)
Inventor: KLEINSCHMIT PETER DR
IPC: C04B35/10
Filed: 1979-08-03
Abstract: There is provided temperature stabilized pyrogenically produced aluminum oxide-mixed oxide having a BET surface area of 50 to 200 m2/g which contains 0.5 to 20 weight % silicon dioxide as a constituent thereof. Because of the silicon dioxide constituent the aluminum oxide does not change into the  alpha -Al2O3 phase until 1350 DEG  C. The temperature stabilized aluminum oxide-mixed oxide is suitable for the production of thermal insulation compositions.
Patent DE-2950030-A1 (DE)
Inventor: KOETZSCH JOACHIM DIPL CHEM DR
IPC: C07C51/58
Filed: 1979-12-13
Abstract: A process for the preparation of a halogen silane and an aromatic compound having at least one -C=O- of   <IMAGE>   group, while simultaneously effecting cleavage of a siloxane by contacting a compound having at least one aromatically bound mono and/or dihalogen methylene group or an aromatic compound having a mono-, di and or trihalogen methyl group of the formula   <IMAGE>  wherein the aromatic moiety can be optionally otherwise substituted, with a siloxane of the formula   <IMAGE>  wherein each R moiety is independently selected from the group consisting of halogen, alkyl, alkenyl and O-SiR3, wherein such R moiety is halogen, alkyl or alkenyl, wherein at least two of the R moieties can, together with the silicon atom to which they are attached, form a ring, at an elevated temperature in the presence of a catalytic amount of a metal or a metal compound, which metal is of the sub-group of elements or of the 5th principal group of the periodic system of the elements, together with a proton donor, or in the presence of a catalytic amount of an oxygen acid.
Patent DE-3002407-A1 (DE)
Inventor: RITTER GERHARD
IPC: A45C13/02
Filed: 1980-01-24
Abstract: The apparatus case has a foamed frame part (7, 8) at the opening edge of each of the two case shells (1, 2). Each foamed frame part (7, 8) comprises a hollow profile reinforcement frame (10, 12) consisting, for example, of metal. Attached to the latter are the case fittings of the locks (27, 28) and of a carrying handle. The foamed frame part also forms the shell lining (9, 11) inside the shell, possibly with compartments and projections (31, 32) on the outside of the shell which project outwards to protect the case fittings (27, 28). In one operation the frame part (7 or 8) can be produced with the projections (31 or 32) and the shell lining (9 or 11) and the compartments to form a foamed product which is then placed and bonded in a harder outer case surface (3 or 4). <IMAGE>
Patent DE-3005919-A1 (DE)
Title: Trigger mechanism for firing pin - releases pin carrier from locking arms by piston, compressing spring behind carrier
Inventor: KELLER OTTO
IPC: F42C15/32
Filed: 1980-02-16
Abstract: The firing pin for an explosive device has its tip (5) in line with the primer igniter (7), and moved towards it by a piston (4) supported behind it. The pin projects from the end of a cylinder (5a) which can slide inside a blind hole (4b) in the end of the piston. The cylinder is pushed outwards by the force of a spring (6) inside its hollow interior and the interior of the blind hole. The cylinder is also retained by resilient arms (3a) extending forwards from a sleeve (3) secured round the outside of the piston. When the piston is forced towards the charge by a pneumatic, hydraulic or mechanical device, the face of the piston is forced against the sloping inside surfaces (3c) of the arms, forcing them open to release the cylinder enabling its tip to strike the igniter. At the same time the cylinder is retracted inside the piston, compressing the spring between them.
Patent DE-3010933-A1 (DE)
Title: Drive arrangement for piston engines
Inventor: SCHWEMIN ARNOLD J
IPC: F16C7/00
Filed: 1980-03-21
Abstract: Secured to a drive shaft within a housing is a main bevelled gear. Several bevelled drive gears engage the main gear, each being secured to a gear shaft which extends through the exterior of the housing. - Secured to the end of each gear shaft is a gear wheel, which meshes with a similar, free-wheeling gear. A pair of eccentric arms are secured to each pair of meshing gear wheels, their ends being secured to a block. A piston rod is also secured to the block, so that the reciprocal motion of the piston rod may be transferred through the eccentric arms and the gear wheels to the drive gear and the main gear.
Patent DE-3011987-A1 (DE)
Title: Solar energy concentrating storage unit - has concentric convex superimposed transparent bodies with refraction index increasing towards inside
Inventor: TESTOLINI GIOVANNI
IPC: F24S23/30
Filed: 1980-03-27
Abstract: The concentrating solar energy storage unit has a convex transparent body (11) with an index of refraction increasing progressively from outside to inside. This is achieved by suitable chemical and structural composition and the superimposition of transparent convex coaxial bodies (12-15). The index of refraction increases progressively from the outermost (12) to the innermost (15) body, since underneath them are flat inwards-reflecting surfaces (21). The number, the indices of refraction, and the thickness of the individual bodies are such that multiple refraction and reflection causes the sunrays (22-27) striking the outside surface (28) to converge onto the innermost one (16).
Patent DE-3015510-A1 (DE)
Title: Transfer for symbol or pattern application - consists of absorbent paper felt, adhesive, textile fibres, binder and thermoplastic spray adhesive
IPC: D06Q1/12
Filed: 1980-04-23
Abstract: The transfer is intended for symbols, numbers, and emblems to be applied to textiles, such as cotton shirts, sports shirts, T-shirts, etc. The transfer is of laminated design and consists of following layers i.e. an absorbent paper felt (1), an adhesive (2), textile fibres (3) forming a mirror-image of the desired symbol pattern. The fibre pattern regions are fitted with a binder (4) and a thermoplastic spreading adhesive (5). The paper felt is simply sized and has a strength of 40 to 200 g per sq. m. It has mechanical properties and texture of blotting paper. The textile fibres are typically of viscose, polyamide, cotton, polyester or acryl. The binder may be enclosed in the textile fibre dye. The adhesive may be based on polyamide, polyethylene, PVC, polyester, or polyvinyl acetate.
Patent DE-3015749-A1 (DE)
Title: Cassette holder for use in vehicles - has lever displaced upon cassette insertion to hold tape in secured position
IPC: G11B23/023
Filed: 1980-04-24
Abstract: The magnetic tape cassette holder is designed for use with an automobile cassette player system and prevents damage to the tape due to vibrations. The cassette holder has a housing with a slide in tray. The tray has a guide spigots that locate in the capstans of the tape spools. The rear edge of the cassette locates against a felt pad in the tray. The front edge of the tray (16) has a formed retaining strip (22) that provides a location for the pin (24) of a pivoted lever (30). When the cassette is located in the tray, the lever is pivoted and the tip pressed against the tape in the cassette.
Patent DE-3021305-A1 (DE)
Inventor: KOHL HELMUT DIPL CHEM DR
IPC: G01N33/72
Filed: 1980-06-06
Abstract: A test agent for the detection of coupling compounds in liquids is described, which essentially consists of an adsorbent matrix containing a diazonium salt as the reagent and a phosphonium salt to stabilize said test agent. Furthermore there is described a process for the preparation of said test agent.
Patent DE-3024595-A1 (DE)
Title: Hoistable working platform parallel guide mechanism - has equaliser devices resiliently mounted in pressure direction in linkage bars
Inventor: KREMER ERWIN ING GRAD
IPC: B66F11/04
Filed: 1980-06-28
Abstract: The parallel guide mechanism is for a working platform swung up and down on an articulated boom. The platform is mounted on the outer end of an arm, alongside which two bars run between separate attachment points on the platform and at the rear end of the arm. Thus, they form with the arm two parallelogram linkages at different angular positions. The bars (18,19) incorporate equaliser devices (27), resilient at least in the compression direction. These devices can also incorporate springs acting in the tension direction, the characteristics of the springs in this direction being the same. Specification published 29.4.82.
Patent DE-3024866-A1 (DE)
Title: Pallet transloading mechanism for chain conveyor - has two protruding lift forks on lower end of hoist carriage, with lifting assembly on travelling truck
Inventor: ZWERENZ RUDOLF
IPC: B66F9/06
Filed: 1980-07-01
Abstract: The equipment lifts containers etc., from floor level onto a chain conveyor (21). It is mounted on the chassis of a carriage (11) which travels between the two sides of the conveyor. At the front of the carriage is a vertical mast (14) with a travelling member (29) with lifting forks projecting forwards, to pass under a pallet at floor level at the end of the conveyor, and then lowers it onto the conveyor after travelling backwards. The carriage includes a drive so that its wheels can travel along rails on the floor between the sides of the conveyor, and another drive for lifting the vertically travelling member. When this member is in its lowered position, the whole equipment is below the level of the top surfaces of the conveyor.
Patent DE-3025724-A1 (DE)
Title: Two-stroke piston IC engine - has double acting cylinders connected for inlet and precompression at one side, ignition and exhaust at others
Inventor: PLOEGER WALTER
IPC: F02B33/12
Filed: 1980-07-08
Abstract: The two-stroke i.c. engine comprises at least two cylinders (1,2) which contain reciprocating pistons (3,4) operating in anti-phase and have their lower ends closed by a cylinder bottom (21). Each lower cylinder chamber (1b,2b) is charged from an intake duct (11,12) via a non return valve (13,14) and is connected with the upper chamber (2a,1a) of the other cylinder by an overflow duct (8,7) containing cam-controlled inlet valves (9,10) in the cylinder head (19). Exhaust is via ducts (17,18) connecting to the upper chambers (1a,2a) via cam-controlled exhaust valves (16,15) in the head (19). The pistons act on the crankshaft via piston rods (5,6) passing through the bottom (21) and connecting rods.
Patent DE-3027514-A1 (DE)
Title: High pressure multiway valve - has two interconnected seared pistons, providing complete pressure relief (NL 16.2.82)
Inventor: KEMNER AXEL
IPC: F16K39/04
Filed: 1980-07-19
Abstract: The valve has one or more pressure medium inlets and outlets, and a cylindrical chamber associated with the outlet. The chamber is limited at one end by a piston, and may be connected via a valve to the inlet. The valve housing and the piston wall form a seat valve. The first piston (7) is formed as a slide, between the medu inlet (4) and the seat valve (28,29,31). On the side away from the cylindrical chamber (6), and outside the medium outlet, the slide is guided sealed. The other end of the chamber is limited by a second piston (9), also guided sealed. This piston is connected to the first one via a piston rod (8). The active surfaces of both pistons, which limit the chamber, are similar.
Patent DE-3033142-A1 (DE)
Title: Signal generator for vehicle following traffic - has programmable device at rear of vehicle, enabling display of stored information in letter of symbol form
Inventor: KLEINERMANNS HUBERT
IPC: B60Q1/50
Filed: 1980-09-03
Abstract: The design of the signal generator is such that it enables mounting on a motor vehicle rear a device for display of programmed, or stored, information. The display may be in the form of letters, symbols and/or different colours enabling viewing by following vehicles or by traffic outside the vehicle. The actuation of the generator may be carried out by mechanical, electrical, electromechanical, pneumatic, optical, acoustic or frequency control. The programming or storage may be carried out by insertion of record discs, tapes, or by written or punched cards. The storage may use one or several horizontally and/or vertically rotatable cylinders or prisms. Other programming and storage forms may be also used. The display may consist of one or several viewing windows, whose transparency may be changed simultaneously with the signal generator control.
Patent DE-3034443-A1 (DE)
Title: Planet gearing subject to torque peaks - has ring gear held in housing by spring loaded friction ring to absorb peaks by slipping
Inventor: HIERSIG HEINZ MAX DR ING
IPC: F16H35/10
Filed: 1980-09-12
Abstract: The planetary gear transmission is intended for applications subject to torque peaks, e.g. between a combustion engine and a generator. It comprises a housing (10) with cover (11) containing an input shaft (13,17) which serves as planet carrier for planet gear wheels (23) meshing with internal teeth of a gear ring (24) and with external teeth of a central sun wheel (20) on the output shaft (21). The gear ring is frictionally located in the housing under axial spring force (27), e.g. by a spring-loaded axially movable non-rotatable ring (25) in frictional contact with one end face of the internal gear ring.
Patent DE-3042409-A1 (DE)
Title: Vending machine with coin evaluator and automatic dispenser - has goods-release control sliding and pivoting allowing easy access for maintenance
Inventor: MEHLAN BERND
IPC: G07F5/00
Filed: 1980-11-11
Abstract: The automatic dispenser has its goods-release control capable of being moved into a readily-accessible position for servicing - a position in which it is decoupled from the device that delivers the goods. The coin evaluator and the control that releases the device that delivers the goods after the coins have been inserted, are mounted on a support that moves along horizontal rails from a slide-in to a removal position. The support has a link that allows it to pivot about a vertical axis when in the removal position.
Patent DE-3045109-A1 (DE)
Title: Drive system for vehicle - has motor acting as generator to charge battery and store surplus energy for re-use
Inventor: RENNER ECKHARD DIPL ING
IPC: B60L50/15
Filed: 1980-11-29
Abstract: The drive system stores and re-uses surplus energy by charging a battery. The system has a conventional combustion engine coupled via a clutch to the vehicle's drive wheels. The engine is also coupled to a rotating machine that acts either as a motor or as a generator depending on the vehicle mode. The machine (3) has a flat rotor and is connected to the output shaft (2) of the engine (1) and via the clutch (4) to the gears (6) coupled to the wheels. The machine when acting as a generator charges a battery (11), (a rapid charge/discharge type). The advantage lies in simplicity and efficiency.
Patent DE-3045250-A1 (DE)
Title: Emergency power supply system - is for power-assisted vehicle steering and has specified valves coupled between hydraulic and supply pump(CS 30.4.81)
Inventor: POLACEK BOHUMIL DIPL ING
IPC: B62D5/32
Filed: 1980-12-01
Abstract: The emergency power supply is used for operating the power steering on a vehicle. It has the working lines (7,7') of the hydraulic gear (1) connected via non-return valves (14,14') and switching valves (2,2') to the conveying line (19) of the supply pump (16) of the power-assisted steering system (3) between a non-reutnr valve (20) and another valve (21) belonging to the steering. An operating space (34) belonging to the switching valves is connected via a single line (36) to the conveying line of the supply pump for the steering upstream of a non-return valve (20). A valve arrangement (41) comprising a limiter and a pressure reducer is located in the line (15) connecting the working lines to the switching valve. The supply is simple and reliable.
Patent DE-3100179-A1 (DE)
Title: Frame filter press
Inventor: JENNIGES NORBERT
IPC: B01D25/00
Filed: 1981-01-07
Abstract: Solid particles are filtered out of liquids by the frame filter press. These liquids are for example waste waters (effluents), suspensions produced in production processes etc. The frame filter press contains a filter cavity (28). This is bounded by filter plates (20), on the insides of which lie filter cloths (26). The filter plates (20) themselves lie between a head piece (12) and a pressure piece (14). At their periphery, outside the filter cavity (28), the filter plates (20) are composed according to the invention of soft rubber, whereas in their central region they are composed of hard rubber. If the head piece and the pressure piece are pushed together after completion of a continuous filter process, the soft-rubber edge region (22) of the filter plates (20) is compressed. The filter cavity (28) is thus also narrowed. The filter cake situated in this is thus compressed and liquid still remaining in it is expelled. <IMAGE>