baber/WOPTO huggingface dataset:
Patent DE-2424705-A1 (DE)
Title: Detector for D.C. current in lines - in which A.C. current can also flow, for telephone systems
Inventor: WIT FRANS CORNEEL LEO DE
IPC: H04Q3/00
Filed: 1974-05-21
Abstract: A d.c. detector has a circuit through which the line current flows, and a detector circuit. The first of the above two circuits has an inductance whose value is changed by the d.c. current, and the detector circuit is electrically isolated from the former. The inductance turns on a saturable coils are of a number such that the core is saturated by the smallest current to be detected. The inductance saturated state affects the detector circuit state; a delay line follows the detector circuit; the circuit through which the line current flows contains a series circuit consisting of the above inductance and a light emitting diode with a resistor in parallel. The detector circuit has a photosensitive component.
Patent DE-2427180-A1 (DE)
Title: Associative memory with bipolar cells - are in matrix comprising emitter transistors cross-coupled via base or collector terminals
Inventor: PFEIFFER KLAUS DIPL PHYS DR
IPC: G11C15/04
Filed: 1974-06-05
Abstract: The collectors of the double emitter transistors are jointly connected to a positive operating potential via a collector resistance each. The first emitter is connected to a word line of a memory line and the second emitter to one of two bit lines assigned to a memory column. The collector terminals of the double emitter transistors (T1, T2) are connected to the base of one of the two search transistors (T3 or T4) via a base resistor (R2). The emitter terminals are jointly applied to an associative read line (AL) running in the direction of the word. The collector terminals are connected to the minus pole of a diode (D1 or D2).
Patent DE-2444000-A1 (DE)
Title: Multi-part raincoat with detachable trousers - which fold up and are buttoned at armpit level when not in use
Inventor: ETGES GUENTHER
IPC: A41D3/06
Filed: 1974-09-14
Abstract: The trouser portion is attached by buttons at the lower seam of the raincoat and are closed by a friction closure down each leg. Three rows of buttons are provided at the lower seam to make adjustment of the leg length possible, and when not in use, the lower ends of the trouser legs are buttoned at armpit height by means of three rows of buttons. The coat pref. has an inner lining with slits to enable the legs to make contact with the buttons. When caught by sudden rainfall it is only necessary to release the trousers at the top and close the friction closure.
Patent DE-2449432-A1 (DE)
Title: Leakage control system for valve - has pair of pistons with bore into control chamber for air and cleaning agent
Inventor: TUCHENHAGEN OTTO
IPC: F16K25/02
Filed: 1974-10-17
Abstract: The valve housing has a cylinder bore containing an upper piston with a piston rod and a lower piston with a piston rod which is provided with a bore. During a downward movement of the upper piston, it engages on the lower one, to seal a leakage control chamber. The lower piston is moved out of the cylinder bore, and is pressed into the supply housing section so that the passage from this section to the outlet housing section is freed. The lower piston has a seat and the bore of the lower piston rod contains a cleaning tube.
Patent DE-2450446-A1 (DE)
Title: Trampoline type body receiving device - has spring mounted sheet carrier bars movable by rams to tension sheet
Inventor: BAUMANN RENE DIPL ING
IPC: A63B5/08
Filed: 1974-10-24
Abstract: The device is for use as a fire safety net and for various athletic uses such as a soft landing for pole vaulter. It folds up into a compact form for transportation, and bears on the ground surface without recourse to permanent ground embedded anchorages etc. The transportable subframe supports the sheet (6) some distance above the ground using two parallel opposed bearer bars (4), and incorporates sheet tensioning mechanisms (22), the bearer bars being carried by shock absorbing elastic mountings. The subframe constitutes twin parallel and aligned divergent legged (11) inverted 'U' frames (10), with pin connected diagonal bracing between their opposed legs.
Patent DE-2506459-A1 (DE)
Title: Stabilising salt-contg drilling muds - by adding maleic or fumaric acids or maleic anhydride, to retain thixotropic properties
Inventor: WALKER THAD OSCAR
IPC: C09K8/06
Filed: 1975-02-15
Abstract: A fresh water drilling mud, contaminated with NaCl and/or KCl, contains 1.43-17.16, esp. 2.86-11.44 kg/cu. m of an ethylenedicarboxylic acid and/or anhydride to stabilise its rheological properties. The additive is esp. maleic acid and/or maleic anhydride, or fumaric acid. Used in drilling for oil, gas, brine and water, where the borehole is drilled through formation which contaminate the mud with NaCl and/or KCl. The additive maintains the dispersibility and thixotropic props. of the mud.
Patent DE-2508317-A1 (DE)
Title: Overhead transporter system support - uses fluid filled elastomer elements for ensuring smooth noiseless operation
Inventor: PAMER KARL A
IPC: B66C9/02
Filed: 1975-02-24
Abstract: The support system for an overhead transporter is suspended from the ceiling structure. The support element between the rigid ceiling structure and the rail carrying the transporter trolleys has elastomer compensating elements. The suspension rod of the support system is held at its upper and lower end in the holding shells by end plates. Flexible elastomer hollow elements are fitted between the plates and the shells. At the upper end the shell fitted on the ceiling beam flange contains a flexible element with filling fluid whose supply can be varied. At the lower end the shell is fixed to the overhead rail and the flexible lement, with liquid filling fitted between the clamping plate on the rod and the shell. These liquid filled elements act as height adjusting and shock absorbing and noise reducing elements.
Patent DE-2521071-A1 (DE)
Title: Cylinder head gasket for IC engine - has a rubber strip with a U-shaped cross section whose limbs fit around the head border
IPC: F02F11/00
Filed: 1975-05-12
Abstract: A flat sealing gasket for the cylinder head cover esp. of an internal combustion engine comprises a rubber strip with a U-shaped cross-section which fits around the border of the head cover by means of two limb parts and is pressed onto the counter-sealing surface by its cross-piece. The limb parts (1) of the rubber strip above the common crosspiece (3) are interrupted by cut-outs (3) in the shape of e.g. a square edge sine wave. The limb parts (4) are uniformly distributed along the straight regions (5) of the structure while in the curved regions (6) are extensively interrupted.
Patent DE-2531553-A1 (DE)
Title: Engine to gearbox clutch - has brake to stop gearing for manual or automatic change
Inventor: STIEVE KONRAD
IPC: F16H63/04
Filed: 1975-07-15
Abstract: Speed change gearing for motor vehicles has an input clutch whose driven plate is movable against a brake surface. On disengagement of the clutch, the brake surface stops the gearing for a safe gear change. The brake surface may be spring-loaded. The gearing may comprise axially slidable gear wheels engageable selectively with gear wheels on a lay shaft. The gear change may be effected automatically by an electric motor which drives a shaft connected to operate the clutch during an initial part of its rotation. During a second part of its rotation the shaft effects the gear change.
Patent DE-2533291-A1 (DE)
Title: Copse spinning machine with bobbin removal - and detent between bobbin and spindle to prevent lowering of bobbin along tube enclosing spindle
Inventor: ROTHKE ERNST
IPC: D01H9/02
Filed: 1975-07-25
Abstract: Detent may be formed by a setting ring movable axially w.r.t. the tube to displace radially a set of peripherally disposed balls which distend radially a sleeve. In the distended state of the sleeve the bobbin is prevented from sliding downwardly along the tube. Detent may be formed by a peripheral array of leaf springs actuated by an axially slidable ring. Alternatively the detent may be formed by a pneumatically inflatable tube. Operators are relieved of the task of lifting the copses off the spindles for which purpose the vertical displacement of the spindles is made use of. Down times of machine is reduced to min.
Patent DE-2540565-A1 (DE)
Title: Digital filter with addition stages - has multiplication stages and delay lines and circuit elements are connected in cascade
Inventor: KOETHMANN WOLFGANG DR
IPC: G01S13/526
Filed: 1975-09-11
Abstract: The required filter characteristics is achieved by connection in cascade of suitable canonical basic circuits. Starting with a canonical filter circuit, two delay lines (V11, V12; V21, V22; V31, V32) are provided for each delay line in he canonical filter, which correspond to the original delay line. These delay lines are connected with each other at one end (P1, P3), while other ends lead to different circuit partS. Further junction points (P2) are between canonical basic circuits, and circuit parts defined by these junction points (P1-P3) are so connected in cascade, that the filter output contains a minimum of noise components.
Patent DE-2552562-A1 (DE)
Title: Reactive dyeing of cellulose and rayon fibres and fabrics - using psychrometer to control steam added during drying and fixing
Inventor: LEHMANN HELMUT
IPC: D06P5/20
Filed: 1975-11-24
Abstract: Process for dyeing cellulose fibres or textiles made from such fibres, using reactive dyes, in which the fibres or textiles, at least up to the end of the first drying stage, and pref. up to the end of the second drying stage, are dried in such a manner that the fibre or textile temp. in the first drying stage is adjusted to 75-95 degrees C. by regulating the amt. of steam in the drying medium. The measurement and regulation of the steam content in the drying medium is pref. achieved by using a psychrometer in the circulating air employed in the first drying stage, and a pref. fibre or textile is rayon. In this variation of the dry fixing process, a subsequent thermofixing treatment e.g. of 1 minute at 150 degrees C., can be eliminated, and it is no longer necessary to add urea to the foulard treatment bath. Moreover, the colour rendition on rayon is much better than in the usual dry fixing process.
Patent DE-2557029-A1 (DE)
Title: Lathe with spindle box and guide bed on base - has common support and channels for coolant for temp.control
Inventor: RINN JUERGEN DIPL ING
IPC: B23Q1/01
Filed: 1975-12-18
Abstract: The lathe has a base on which is supported a spindle box and a guide bed for th e slide. The spindle box (3) and the bed are arranged separately from each other on a common support (2) of high rigidity and low thermal conductivity. There are channels for coolant flow for maintaining the temperature of the common support (2). In this way the support temperature can be held constant to compensate temperature changes in the spindle box. The lathe is supported and anchored on a concrete support. The spindle box (3) is driven from a main gearbox (8) which is arranged on the support (2). A flat disc (6) is adjustable on a sliding carriage (5) advanced by the feed mechanism.
Patent DE-2602938-A1 (DE)
Title: Capacitive coupling device for filter - has threaded rotatable spindle mounted in plate of blocking capacitor
Inventor: LEUTERITZ HEINZ
IPC: H01P5/04
Filed: 1976-01-27
Abstract: The coupling device has a threaded spindle movable in the direction of a filter circuit. The spindle rotated by a knurled knob is mounted in a plate designed as a blocking capacitance, insulated from the outer conductor by a mica. plate. It has a thread for the spindle, and runs further inside in the form of a sleeve whose end presses on the spindle. The sleeve is supported in the plate area by a centring insulating element on the outer conductor. The threaded outer conductor end is screwed into the filter outer conductor block.
Patent DE-2607365-A1 (DE)
Title: Removable cover for rear of wiper arm - has clip on plastic cover moulded in U-shape and fitted by ratchet slots
Inventor: BRUEMMER DIETMAR
IPC: B60S1/34
Filed: 1976-02-24
Abstract: The rear of the windscreen wiper arm has the main spring (21) located inside the U-shape formed by the pressed metal arm (12). The spring is protected by a cover (23) which is clipped into place for easy removal, to replace the spring. The cover is plastic moulded, with a U-shape whose width is wider than the internal width of the wiper arm U-shape. The cover has ratchet slots (31) which clip over internal pegs (30) on the sides of the wiper arm. The far end of the cover has a ratchet nose (28) which locates in a hole in the arm. The system enables the spring to be replaced without damage to the cover.
Patent DE-2612186-A1 (DE)
Title: End connection for struts between tunnel supporting arches - incorporates two pivot pins to allow strut to slope either way
IPC: E21D11/28
Filed: 1976-03-23
Abstract: The framework used in tunnel lining includes support arches (1) made from e.g. I beams, interconnectors by tubular struts (6, 7) which include a turnbuckle at the centre of each, for tensioning. Each end is attached by a clamp assembly which includes a pivot pin (24) so that the strut can be fitted at any angle, with its end resting against the I beam. Two straps (23) are clamped around the I beam, with a bolt (17, 18) each end acting as a pivot for the pivot pin (24) which passes through the strut. This pivot pin has a threshold end (37) for a wing nut (38) for securing it to the end of the strut, which has suitable, clearance holes (33, 34). The other end is attached to a U piece (25) through which the bolt (18) passes.
Patent DE-2613508-A1 (DE)
Title: Electric typewriter with key latching controls - has rapidly acting key return to prevent typing by accidentally touched keys
Inventor: PILOTEK LEONHARD
IPC: B41J5/22
Filed: 1976-03-30
Abstract: Power-operated typewriter has key lever (13) acting through the intermediary of respective spring-loaded control members (19). Depression of a given key releases the control member into a latched position. The action of a reset rail (93) is initiated early after depression of the key but the control member latch is not released until later in the cycle. The rail acts on each control member through a respective leaf spring (97) which deflects until the control member is released. The early action of the rail prevents the control members of accidentally touched keys from attaining the lock position so that latter members and thus their keys are returned before the typing action.
Patent DE-2617837-A1 (DE)
Title: Sludge separation from water after flocculation - using a sludge chamber isolated from the main sepg. chamber
Inventor: HELD GEB HILSHEIMER INGEBORG
IPC: B01D21/00
Filed: 1976-04-23
Abstract: A sludge sepg. vessel is connected at its base with a separate sludge collecting chamber, with a valve between the two. There is a sludge pump at the base of the second chamber, with pump-away and recycle lines. Used for the desludging of water e.g. after treatment processes involving flocculation, partic. in medium-size or small installations. Little ground area is occupied. The inexpensive appts. can handle widely varying sludge-water ratios. Economy in the use of flocculant is obtd.
Patent DE-2620427-A1 (DE)
Title: Flexible offset printing plate cylinder clamp - has elastic tubular clamping body and elastic strip located in cylinder groove
Inventor: BERNAUER JOACHIM
IPC: B41F27/12
Filed: 1976-05-08
Abstract: The cylinder clamp is esp. designed for holding a flexible offset printing plate and comprises a groove running a parallel to the cylinders axis. A clamping body (10) with a tubular or cylindrical shape is made of an oil - and benzen - resistant elastic plastic and is located in the groove. One end of the plate is hooked on the groove wall while the other end is clamped between the tubular body and an elastic strip (12) bolted (14) to a spindle in the groove. The spindle has a flat top surface (16) on which the clamping body rests. The clamping is effected by rotation of the spindle which causes the strips to compress the clamping body and hold fast the plate ends.
Patent DE-2620718-A1 (DE)
Title: Rubber or plastic corrugated hose without wire inlay - with outwardly directed corrugations of parabolic cross-section
Inventor: RETTNER GEORG
IPC: B29C53/30
Filed: 1976-05-11
Abstract: Rubber or plastic corrugated hose without wire inlay comprises outwardly directed corrugations of parabolic cross-section, while the inner wall of the sections between corrugations is cylindrical. The wall thickness of the corrugations may be uniform, at 10-30% greater at their peaks than their arms. Pref. the outer walls of the sections between corrugations are concave in cross-section, and the wall thickness in the region of these sections is 20-40% greater than in the region of the arms of the corrugations. Method for mfg. the hose is performed by helically winding a rubber profile onto a cylindrical core, then applying a crude rubber layer which is engaged between the projections formed by the rubber profile, and vulcanised.
Patent DE-2621450-A1 (DE)
Title: Amino-substd. alkyl nitriles prodn. - from amines, carbonyl cpds. and hydrogen cyanide, useful e.g. as pharmaceutical and agrochemical intermediates
Inventor: DISTLER HARRY DR
IPC: C07D295/145
Filed: 1976-05-14
Abstract: Prepn. of glycine nitriles of formula R3R4N.CR5R6.CN (I) comprises reacting amnes R3R4NH (III) with carbonyl cpds R5COR6 (IV) and HCN in presence of water for 0.1-4 hrs. at 0-80 degrees C. The condn. of HCN never exceeds 0.9 wt. % of the reaction mixt. In the formulae, R3-6 are aromatic, cycloaliphatic or araliphatic gps.; R3 and R4 may together complete a heterocycle; R4-6 may also be H, and R5 and R6 may also be aliphatic, and when R5 and/or R6 is aliphatic aromatic, cycloaliphatic or araliphatic, then R3 and R4 can also be aliphatic. Pref. the products where R3-6 are aromatic gps., R5 and R6 may also be H, aliphatic, cycloaliphatic or araliphatic, and R4 may be H, are subsequently treated with an acid at pH 1-7. (I) are stabilisers; intermediates for dyes (e.g. indigo) fungicides, bactericides, textile auxiliaries and antigelling agents; and by saponification give glycine salts useful as selective adsorbents for CO2, SO2 and H2S, and by hydrogenation give assymetric diamines useful for making pharmaceuticals and plant protection agents. Cf. the process of DT 1543342. This method is simpler and more economic giving better yields of purer products. Water pollution and formation of resinous by-products are minimised, and subsequent acid treatment obviates expensive purification steps and avoids losses of solvent.
Patent DE-2629387-A1 (DE)
Title: Anchoring device for table cloth used in open air - has weight attached by chain to clip which grips cloth edge
Inventor: WIEDEMANN KATHI
IPC: A47G21/16
Filed: 1976-06-18
Abstract: A table cloth, or other covering, when used in the open-air is held down in the wind by means of a clip (1) attached to its edge. A weight (2) is attached to the clip, and may be of any shape such as a spherical, disc-shaped, cube or pyramid shaped. The weight can also be of varied materials, such as tin, glass, stone, plastic, metal, mineral or combinations of these. The weight may also be in the form of a chain or garland which can be made of one piece of material or in sections, of varying length and decorated if required. The weight is attached to the edge of the table cloth or covering by means of a chain.
Patent DE-2629778-A1 (DE)
Title: Flexible plastic insulation for liquid gas tank - with two plastic films and intermediate pressure-transmitting plastic insulation
Inventor: MENGES GEORG PROF DR ING
IPC: B32B5/18
Filed: 1976-07-02
Abstract: Flexible plastic insulation for tank for transporting liquified gas comprises two plastic films, and an intermediate pressure-transmitting cold-resistant plastic insulating core, joined together by plastic fasteners. The insulating core has a compsn. of plastic, glass and wood, and is constructed in panels so that only small gaps occur in case of deformation due to low temps., and these are bridged by the films. The insulation allows more economical construction of tanks, with respect to both the materials used and the mfg. costs. The assembly allows transport of liquefied gases at as low as -70 degrees C in tanks of normal-strength steel.
Patent DE-2631408-A1 (DE)
Title: Top reflector esp. for pebble-bed reactor - has retaining plates directly above graphite blocks to prevent movement
Inventor: SWARS HELMUT
IPC: G21C11/06
Filed: 1976-07-13
Abstract: A top reflector, esp. for a gas-cooled, pebble-bed reactor comprises a support plate suspended above the core and a number of polygonal graphite blocks arranged in at least two layers and comprising cooling ducts and passages for control rods, fuel elements etc. Below the support plate, at a distance from it, a retaining plate is mounted by means of fixing rods attached to the support plate, the graphite blocks are fixed to this retaining plate. Pref. both the support plate and the retaining plate are rigidly connected together by the anchor rods to form a structural unit. The support plate and also the retaining olate may be made of component plates with overlaps. These plates may be laterally clamped together with prestress. The graphite blocks are secured against displacement due to vibration, earthquake movements, or upward sudden discharge of gas due to depressurisation, in this way, the risk of jamming of the control rods and other internal damage is counteracted.
Patent DE-2635848-A1 (DE)
Title: Hard water fur indicator for electric coffee maker - has temp. sensor and timer providing signal when max. temp. is attained before set time
Inventor: KLARE ANNE
IPC: H05B1/02
Filed: 1976-08-10
Abstract: The required amount of water for the coffee making machine, and the boiling time are adjustable. The coffee making machine includes a heating element (6) mounted in the bottom of the water boiling chamber (19). There is an adjacent temperature limiting device (7). When the maximum permissible temp. is attained before the end of the time set according to the times (20) a warning device is actuated. This indicates that some furring of the boilding chamber has occurred.
Patent DE-2636331-A1 (DE)
Title: Solar heating system heat collector composite tube - has plastics tube adhesively secured inside aluminium tube by intermediate layer
Inventor: SCRAGG FREDERICK
IPC: F24S10/75
Filed: 1976-08-12
Abstract: A composite tube suitably for use inside a heat collector for a solar heating system, has a metal outer tube (10) e.g. of aluminium, about 0.5mm wall thickness with an inner tube (11) of p.v.c., nylon, polyethylene, polypropylene etc. These are held together by an intermediate layer (9) which is adhesive coated. The intermediate material may be perforated paper or a cotton strip wound onto the inner tube. Alternatively, a strong metal element may be included between the inner and outer tubes. The intermediate layer may be applied by pressure to the interior of the outer tube, or by using a vacuum. Alternatively, hat may be applied to the adhesive. This tube (17) is clamped by strips (18) under a transparent sheet (24) onto an absorption layer (15) and a reflective layer (16) supported by a corrugated insulation layer (14).
Patent DE-2640132-A1 (DE)
Title: Fabric pattern dyeing - uses plunger pistons with cylinder apertures to control volume of dyestuff for application
Inventor: MITTER MATHIAS
IPC: B41F31/02
Filed: 1976-09-07
Abstract: In applying pattern dye to a fabric, as piece goods or fabric sections, the dyestuff is applied by pistons in a dyeing zone. Dye flow blocking sleeves are provided for the pistons in the dyeing zone. They have >=1 aperture below the fluid level. This is connected through the lumen with the dyeing zone to allow the plunger to slide so that, in the upper position, the lower face is above the lower edge of the aperture of the guide sleeve and in the lower position the plunger provides a sealed closure for the opening. The design allows the vol. of dye to be controlled on entering the dyeing zone.