baber/WOPTO huggingface dataset:
Patent DE-2911905-A1 (DE)
Title: Lignite powder stored in silo - rendered inert by airtight closure of silo
Inventor: MUELLER ERNST DIPL ING DR
IPC: B65D90/44
Filed: 1979-03-27
Abstract: Lignite powder stored in silos by means of carbon dioxide is rendered inert by air-tight closure of the silos. The lignite particles have a size of 200 mu m, and form explosive mixts. with air. The powder is filled into the silo by means of compressed air which leaves the silo through a filter. Auto-oxidn. occurring in the silo leads to formation of CO, and residence time of the powder in the silo is normally is not >48 hours. The necessity for supplying an inert gas to the silo is avoided. Pressure in the silo remains unaltered. Safety is achieved at low cost. The process can be applied also to the storage of a mixt. of wheat rice and barley.
Patent DE-2915577-A1 (DE)
Title: Contactless electric switch with toggle action spring - has movable portion travelling between two end positions to select ON and OFF condition
Inventor: EICKER KARL-G
IPC: H03K17/16
Filed: 1979-04-18
Abstract: The electric switch is of the contactless type, but has a moving portion indirectly affecting a fixed portion connected to the circuit writing. In one end position of the moving portion the switch is OFF and in the other end portion it is ON. The movable portion may be moved by an external device such as a pushbutton or any other suitable system. There is a spring system between the moving and fixed parts of the switch. This spring may have a toggle action to give rapid movement from one end position to the other, and avoid uncertain action due to sticking in an intermediate position. The spring may control a shutter which lets through or cuts off a beam of light.
Patent DE-2916249-A1 (DE)
Title: Light weight shell structure prodn. system - glues internal structure to skin in mould before closing and applying pressure
Inventor: BUSCH HEINZ DIPL PHYS DR
IPC: E04C2/26
Filed: 1979-04-21
Abstract: The system produces lightweight shell-type structures with positive and/or negative curvature and/or large flat surfaces, by enclosing an internal structure by means of a skin. The internal structure is first completed as a ribbed structure accessible from all sides. The skin forming the structure surface is then inserted and detachably secured in the shaping mould, and the structure is glued to the skin. Finally the mould sections are closed and sealed, and a pressure is built up between them and the skin. Pref. the inner structure is made completely of composite fibre material.
Patent DE-2917592-A1 (DE)
Title: Time division duplexer with variable send-receive ratio - uses received level to adjust echo blocking time to suit line length
Inventor: SCHELANDER FRANZ HUBERT
IPC: H04L5/14
Filed: 1979-04-30
Abstract: Digital data is transmitted over a 2-wire subscriber's line by time division duplex in blocks at 256kBit/s at 250 microsec intervals. A data block (s1), sent by the exchange, is received by the subscriber (e3) after the line delay (tL). The subscriber sends his block of data (s3) after a short pause (p) and it is received by the exchange (e1) after the line delay. When the exchange sends data (s1), its duplexer does not switch to receive (t2) until a time (t'1) long enough to allow echos (S), from discontinuities in the line, to die away. This time is set by a control circuit according to the level of the signals (e1) received from the subscriber, and hence to the length of the line. The longer the line, i.e. the weaker the signals, the longer the time (t'1) before switching to receive.
Patent DE-2921496-A1 (DE)
Title: Free flowing, non-fibrous, insoluble cellulose material prodn. - from acid decomposed cellulose by partial drying, milling and final drying
Inventor: MAGISTER GUENTER DR RER NAT
IPC: C08B15/02
Filed: 1979-05-26
Abstract: Prodn. of flowable, non-fibrous, water-insoluble cellulose powder comprises first adjusting degraded cellulose prod. obtd. by acid hydrolysis then removal of acid and associated material, to dry matter content of 30-40 wt.%. It is then comminuted to 3-8mm particle size, dried completely and finally reduced to =200 mu m by comminution and sieving. Pref. a further screening is carried out to eliminate fines of less than 50 mu m. Prod. is used esp. as a tabletting aid in pharmaceutical compsns. Compared with the known method (colloidal wet milling then spray drying) less energy is required and problems of microbial spoilage of the cellulose dispersion are avoided.
Patent DE-2922338-A1 (DE)
Title: Line interface unit for wideband transmission path - sends digital multiplexed signal and several auxiliary channels together using frequency multiples
Inventor: PRUTZER HELMUT ING GRAD
IPC: H04J3/12
Filed: 1979-06-01
Abstract: The line interface unit has the frequency of its clock generator derived from the frequency of the multiplexing system, the transmission frequency in the transmission cable being a multiple of this. The auxiliary channels are transmitted by multiple sampling or the auxiliary channels are controlled using a clock signal derived from the multiplexing frequency. The individual signals are grouped together by a multiplexer and sent together. The advantage lies in the simple and cheap manner in which one main signal and a few auxiliary signals are transmitted together.
Patent DE-2931661-A1 (DE)
Title: Fixed spool fishing reel assembly - has additional axial sleeve coaxial to first sleeve on spool or flange
Inventor: KUNTZE RUPERT
IPC: A01K89/01
Filed: 1979-08-02
Abstract: The fishing reel has a spool and a peripheral winding flange, with open axial sleeves extending in opposite directions and overlapping each other. The spool (3) or the flange (2) has, concentric to the sleeve (4,5), a second axial flange (6,7) which is positioned concentric to and clear of it. The overlapping sleeves alternate in the radial direction. The design avoids the risk of the line jamming between soool and flange.
Patent DE-2931868-A1 (DE)
Title: Grinding vessel for extremely hard granular materials - is made of reaction-sintered silicon nitride
Inventor: STEINMANN DETLEF DIPL ING
IPC: B02C17/22
Filed: 1979-08-06
Abstract: The grinding vessel has an aluminium lid contg. underneath a lining of reaction-sintered silicon nitride. The body of the vessel is made of reaction-sintered silicon nitride with a plastics cover to protect the pot against damage. The pot is fitted in an aluminium protective casing with an aluminium bottom fixed by bolts. Between the lid and the lining a Teflon (RTM) sealing ring is fitted. The method of mfr. of the vessel is also claimed in which Si powder is processed to form the vessel shape. This is optionally machined and then sintered in a N2 atmosphere. Pref. the Si powder used has a particle size of smaller than 15 microns. The vessel has a high wear resistance.
Patent DE-2934425-A1 (DE)
Title: Swinging vane concrete pump - has oscillating valve block connected to reciprocating cylinders with baffle preventing backflow
Inventor: GRELL KURT-WERNER
IPC: F04B7/00
Filed: 1979-08-25
Abstract: The concrete pump has two pistons in adjacent cylinders (1 and 2) mounted on a common valve block. The piston (2) is connected to the inlet duct (3) and blanked from the discharge by the valve disc (10). A baffle (8) on the disc blocks the inlet from the cylinder (1), which is open to the discharge (4) through a port (5) in the disc (10). When the strokes are reversed, the disc (10) rotates so that the baffle (8) now isolates the cylinder (2) and a second port in the disc (10) opens this cylinder to the discharge.
Patent DE-2936755-A1 (DE)
Title: Overload coupling with coaxial hub and sleeve - includes spring loaded radial coupling plungers engaging axial grooves within coupling sleeve
Inventor: GEISTHOFF HUBERT ING GRAD
IPC: F16D43/202
Filed: 1979-09-12
Abstract: The overload coupling has a coupling hub (10) which is located inside a coupling sleeve (1). Radial holes in the hub locate spring loaded plungers which engage axial grooves (2) on the inside of the coupling sleeve (1), thus transmitting torque. When the transmitted torque is excessive, the steel ball between the hub and sleeve is displaced in the direction of rotation. This causes a control sleeve between the hub and outer sleeve to rotate. The coupling plungers are thus retracted and the coupling is disengaged.
Patent DE-2937898-A1 (DE)
Title: Welding of electrically conducting and magnetic parts - where layer of pure gold is provided on one joint surface prior to laser welding to increase joint strength
Inventor: RETTIG ROBERT DIPL PHYS
IPC: B23K26/32
Filed: 1979-09-19
Abstract: The components consist esp. of the armature (1) of a relay, and a holding spring (2) which is to be joined to the armature, esp. by laser welding. Prior to welding, one of the two parts (1,2) esp. the armature, is coated on its joint surface with pure gold, which is pref. 1-2 microns thick. The object of the invention is to achieve a substantial increase in the fatigue strength of the joint (1,2) irrespective of the materials used to make the two components.
Patent DE-2939625-A1 (DE)
Title: Mechanism for orientating fish - subsequent to head removal having circular support on fishes belly to pass under profiled roll
Inventor: KROHN MANFRED
IPC: A22C25/08
Filed: 1979-09-29
Abstract: Fishes with their heads removed are automatically orientated on a conveyor system. The fish first pass through the decapitation stage and are then dropped onto the orientator. This has two conveyor bands along the sides and a support for the fishes belly below. The support has a circular profile along which the fish is pulled. It is finally picked up by a profiled wheel which pushes the fish onto the support and inverts the belly. The fish is fed forward onto a slicer to fillet it. The system is of use in factories for preparing fish. It allows precise orientation of the fish.
Patent DE-2941888-A1 (DE)
Title: Security ring stripping for bottle conveyor - has vertical slider between arms carrying stripping blades, swung by fixed stops
Inventor: GRAESSLE WALTER
IPC: B08B9/08
Filed: 1979-10-17
Abstract: Apparatus for stripping the remaining rings of security sleeves from bottle necks includes a conveyor for advancing the bottles, and an upper conveyor which applies the stripping members to the bottle necks. Each stripping member has two vertical swinging arms (11,12) supported from a cross member (10) each arm having a stripping blade (15,16) projecting inwards from it. A plunger (27) between them is pushed downwards so that a locating rod (17) at the bottom enters the bottle neck. At the same time a crosspiece (18) enters grooves (11a,12a) in the arms, so that they swing inwards allowing the blades to come in contact with the top surface of the ring. Fixed blocks each side of the conveyor contact projecting ends (13,14) attached to the blades so that they are swung down to sever the ring. The bottles then pass a rotary brush and an air jet.
Patent DE-2942247-A1 (DE)
Title: Burning frying pan fat extinguisher - has tapered concertina shaped fire resistant hood on handle with fusible bag of extinguishing agent inside
Inventor: LANDSRATH WALTER
IPC: A62C3/00
Filed: 1979-10-18
Abstract: The device for extinguishing burning frying fat consists of a tapered concertina-shaped hood (1) to which a telescopically extendable handle (3) with grip (6) on its end is fitted. The lower, larger end of the tapered hood is open and provided with a stiffening ring (2), onto which a sealing ring (5) is attached. The top of the tapered hood is closed, and inside is fixed a bag (4) made of fusible material and containing an extinguishing agent. In case of fire the hood is placed over the pan, the heat melts the fusible bag and the extinguishing agent drops into the flames supporting the liquefication of the fire.
Patent DE-2943915-A1 (DE)
Title: Spirit level for one-man mobile powered tool - has mechanical or magnetic fixing providing accurate alignment
Inventor: SUUR HANS E
IPC: B25H1/00
Filed: 1979-10-31
Abstract: A spirit level for a one-man mobile powered tool such as an electrical, hydraulic or pneumatic drill riveting hammer etc. enables the tool position to be determined in two dimensions from the instant of starting an operation until its end. The spirit level can be rigidly fixed in different types of housing or mounting. The housing or mounting can be attached using magnetic or mechanical fixings which permit its angular position to be adjusted. The reading characteristics of the spirit level can be improved by the use of mirrors or prisms. The vertical position of the tool can be determined using a single level in a longitudinal or circular form. The level can be detached from the tool.
Patent DE-2944067-A1 (DE)
Title: Fluid seal with lubricated sealing surfaces - incorporates metal bodies which tilt under application of pressure to encourage generation of lubricant film
Inventor: GREENE JEROME
IPC: F16J15/3244
Filed: 1979-10-31
Abstract: A fluid seal is for sealing against leakage between relatively moving machine elements. It is capable of establishing a lubricant film between sealing surfaces in sliding contact without affecting sealing and accomplishing pressure balancing of the seal so that the pressure at the sealing surfaces is substantially less than the sealed pressure. It includes as its essential elements an elastomer sealing surface with shaped rigid members embedded therein in sliding contact with a rigid sealing surface. The shape of the embedded rigid members enables formation and continued generation of the lubricant film and pressure balancing of the seal by controlling the deformation of the elastomer surface when the latter is subjected to the sealed pressure and friction at the sliding surfaces. The seal can be formed both as a radial type seal with annular sealing surfaces and as an axial type seal with flat sealing surfaces.
Patent DE-2946706-A1 (DE)
Title: Coiled metal spring band e.g. for tape measure - has dual peak transverse profile for flexural stiffness
Inventor: ROSSMANN CHRISTOPH
IPC: G01B3/10
Filed: 1979-11-20
Abstract: The retractable metal spring tape is esp. for use as a tape measure retracting onto a spool. In the coiled position it has a flat profile perpendicular to its longitudinal axis and when unrolled a curved profile. This ensures that the tape has sufficient flexural stiffness in each direction perpendicular to its length to allow it to be inserted unsupported into any operating position. In the unrolled condition, the rule (1) profile is a symmetrical waveform with at least two peaks (2,3) in one direction. The smallest radius of curvature (r) of the profile is at least 120 times the thickness (d) of the metal band (1). The radius (R) of the single central curve is larger than pref. double the value of, the radii (r) of the outer curves. The tape may also be used as a collapsible aerial and in batteries.
Patent DE-2948671-A1 (DE)
Title: Press for draining laundry items - has portal framing with side walls passing through piston locking region
Inventor: ARENDT HANS F
IPC: D06F47/00
Filed: 1979-12-04
Abstract: Stroke press for the drawing of laundry items comprises a membrane support having a hollow chamber connected to pressure means and a membrane and which is movable to a lower position to press the membrane against a laundry item layed on a perforated base. The press is formed as a portal press having side walls extending through a locking region at which the membrane support is locked in the lowermost position by means of a rail and locking stops which extend essentially over the whole length of the side walls.
Patent DE-2949715-A1 (DE)
Title: Loudspeaker mounting for guitar - has surround of sound absorbent material in rubber cup
IPC: G10H3/18
Filed: 1979-12-11
Abstract: The electric guitar has a speaker (8) mounted in a rubber cup (5) extending into the interior of the guitar from an opening (2) in a top board surface (1) of the guitar. The cup has a flanged rim (3) extending about the opening and a groove formed below the flange. The speaker (8) is disposed within the cup with sound absorbent material (6) and has portions (11) held in position by the groove. A cap (10) is positioned over the opening and screws (12) extend through the cap and cup flange into the guitar top surface securing the cap and flange to the top surface. The speaker mounting reduces acoustic feedback between the speaker, the guitar and pick-up.
Patent DE-2951302-A1 (DE)
Title: Hydraulic actuator for piggyback hatch - has movable slide uncover opening serviced by hatch
Inventor: SUNDMAN GUSTEN
IPC: B63B19/18
Filed: 1979-12-20
Abstract: The device assists piling or feed-out hatch sections included in a piggy-back hatch. It uncovers or covers an opening served by the hatch. The device comprises a control (14) with a movable slide (15) having a pivoting head (17) attached to its upper end. The head is adjusted so that during piling and feed-out it remains horizontal to act with a projections (13) on the section. The head s also adjusted to swing out of the way so that it can pass such a projection. The device is pref. driven hydraulically.
Patent DE-3000442-A1 (DE)
Inventor: DAHINDEN VINZENZ DIPL CHEM
IPC: H01F41/12
Filed: 1980-01-08
Abstract: In order to produce insulation-paper layers having spacer rods which are mounted on a paper web, the paper web, which consists of cellulose paper, is coated with a non-woven fabric consisting of polyamide. The two layers are drawn together over a hot plate and spacer rods consisting of transformer board are placed onto the paper at the point on the hot plate at which the polyamide is in a fluid state. After subsequent cooling, the polyamide solidifies and the spacer rods remain adhered. The insulating-material strip obtained can be supplied directly for transformer production, since no waiting time is necessary for curing or drying.
Patent DE-3002609-A1 (DE)
Title: Lever operated bicycle for two persons - has pivoted supports for seats and footrests and sprung brake mounting
Inventor: SCHELLER ACHIM
IPC: B62M1/20
Filed: 1980-01-25
Abstract: The bicycle has the rider's seat on a long arm pivoted at the front of the machine and with the rider pushing down onto foot support arms to riase the seat and himself. On the downwards stroke the weight of the rider propels the linkage. A crank drives a chain gear linked to the rear wheels. The linkage can include a balance arm weighted by a pillion passenger which is raised, when the foot support arms are depressed. A main spring holds the arms in a middle position and enables a simple reciprocal drive to be maintained.
Patent DE-3004063-A1 (DE)
Title: Alarm system for cut telephone line - has transistor circuit triggered by line voltage on open circuit to operate alarm relay
Inventor: SCHULTES THEO DR ING
IPC: H04M11/04
Filed: 1980-02-05
Abstract: The telephone system is equipped with an alarm that is triggered in the event of the line being cut by an intruder. In normal operation, a steady voltage applied to the incoming lines (L) is processed over a diode bridge (D) to hold a relay (3) to maintain the alarm in the 'off' condition. If the line is cut, then the relay drops out and an acoustic or visual alarm (B,S) is triggered.
Patent DE-3021053-A1 (DE)
Title: Toner transporter for photocopier - has rotating spiral drive with offset coils in flexible tube
Inventor: HARTWIG KARL DIPL PHYS
IPC: G03G15/08
Filed: 1980-06-04
Abstract: The toner transporter for recycling the toner after removal from the process drum has a rotating spiral inside a flexible tube bent back to the toner reservoir. The windings are in groups (7) with each group having an offset axis (7a,7b) to lie against opposite walls of the tube, and with the winding diameter smaller than the inside diameter of the tube. The bottom of the tube has a horizontal section (3) with an open slot under the collection point, with the windings uniform and filling the whole tube. The offset windings are in the rest of the tube, made from silicone rubber. The direction of rotation is such as to tighten the windings. The offset design moves the windings to scrape along the tube edges for an efficient drive.
Patent DE-3021433-A1 (DE)
Title: Electric appts. with component circuit board - has plug pins through housing wall, screwed or riveted in row along edge of circuit board
Inventor: HAUSSENER HANS
IPC: H05K7/14
Filed: 1980-06-06
Abstract: The circuit board is housed in a casing of insulating material, one casing wall being penetrated by plug pins for inserting into a socket. The pins are arranged in a row along an edge of the circuit board and screwed, or riveted with it, while being held in an aperture of the abutting casing wall. The pins, or their screws, or rivets connect to the circuit board conductive tracks. Pref. the pins and their mutual spacing are so rated that they are pluggable into longitudinal or transverse clamping boards in appropriate rows. The casing may be in two parts connected by screws in interengaging distance sleeves. The latter belonging to one casing half protrude through holes in the circuit board. The circuits board(s) may abut shoulders in the distance sleeves. Between the casing halves may be a separating gap in the plane of the plug pin row.
Patent DE-3022013-A1 (DE)
Title: Firearm for harpoons or arrows - has plunger in cylinder behind which propellant charge is insertable from rear
Inventor: OSSEGE JOHANNES
IPC: F41C7/00
Filed: 1980-06-12
Abstract: The firearm is intended to fire arrows, bolts or harpoons. It has a support on which the arrow etc. is placed, and a trigger mechanism actuated by the marksman. Behind the arrow etc. (11) is a plunger (10) working in a cylinder (4). A propellant charge (8) inserted from the rear, protrudes into the cylinder, and is fired by a conventional trigger mechanism as used on a rifle. The dia. of the cylinder, forming the firing chamber, can be greater than that of the plunger, at the rear end of which there is a piston (9) sized to fit in the cylinder. The latter may be fitted with a sleeve sealing the explosion chamber.
Patent DE-3023800-A1 (DE)
Title: Musical tone signal sequence detector - has comparator based circuit to identify specific musical note sequence
Inventor: BLOCK ROLF DIPL ING
IPC: H04W88/02
Filed: 1980-06-25
Abstract: The identification circuit is designed to respond to a specific audio signal sequence composed of three or more musical notes. The signal sequence is processed by a radio or television amplifier (1) that then provides inputs to several note receivers (2) that are tuned to the specific note frequency. The units generate an output when the signal is present for an uninterrupted period. Outputs are processed by delay stages (6), with the exception of the nth stage that uses an inverter (8). A coincidence stage (9) generates an identifying output that triggers an output stage (10). The system may be used for automatic lead in for TV advertisements.
Patent DE-3030490-A1 (DE)
Title: Electronic subtraction device with decimal display - performs conversion by automatically subtracting specified binary number
Inventor: MERKLE PAUL
IPC: G06F7/494
Filed: 1980-08-12
Abstract: The electronic subtraction device uses full-subtractors instead of full adders and half-subtractors instead of half adders. The necessary different of six in the values of the decade display value and the decade stored value is produced by inputting the minuend as a binary-plus-6 coded decimal number. The difference of six between the carry output and carry input in each decade is balanced by the automatic auxiliary subtraction of the correction number 6 or LHHL. In a special format, the subtraction decades have two rows (E,F) of stores. Direct connections (a) are made between the second row (F) of stores and the minuend inputs. Instead of performing auxiliary additions per decade, an additional decimal-binary coding circuit per decade may be used.