baber/WOPTO huggingface dataset:
Patent DE-2843549-A1 (DE)
Title: Folding frame for perambulator - has bracing struts to maintain crossed lever setting at single point above wheels
IPC: B62B7/10
Filed: 1978-10-05
Abstract: The folding frame for the perambulator has improved suspension by linking the ends of the crossed levers to a single point on the frame supporting the wheels. The link is by pivotted levers so that the upper frame can tilt over the base frame. The ends of the crossed levers are linked to leaf springs whose middles are set over the single pivot point. The suspension provides improved ride comfort over rough ground without losing stability. The body of the vehicle is slung from upper support frame secured by locking catches.
Patent DE-2854799-A1 (DE)
Title: Display unit with sound emitter - has internal lamp to illuminate sign retainer which is partly translucent
Inventor: AUGUSTYN RENE
IPC: G09F13/04
Filed: 1978-12-15
Abstract: The display unit has a housing with a curved, at least partly translucent, signal retainer. A lamp illuminates the retainer from within the housing. a device is included for emitting sound to attract attention to the unit.
Patent DE-2918104-A1 (DE)
Title: Traffic controlling and warning system - consists of regularly spaced lamps with connected switches so that switching on one also switches on at least preceding one
Inventor: GERVAI OTTO
IPC: G08G1/09
Filed: 1979-05-04
Abstract: The traffic regulating and warning system provides progressive warning signs on approaching a natural danger such as fog, ice, rain or accidents which could lead to further collisons. It is also applicable to traffic flowing in the opposite direction so that, e.g. curious drivers do not suddenly stop without heeding following vehicles. Signal lamps are regularly placed alongside the motorway etc. at distances of about 500 m to 3,000 m. Each lamp has a manual switch. The switches are so connected together that when one is switched on at least the next lamp in the direction of the oncoming traffic is also switched on as well as the lamp on the opposite side of the motor-way and the lamp preceding it.
Patent DE-2928280-A1 (DE)
Title: Closed top carrier bag with cord handle - has foil strip glued in front panel and also glued to rear panel in central handle area
Inventor: WILLUTZKI KURT
IPC: B31B19/86
Filed: 1979-07-13
Abstract: The bag (1a,11) in paper and/or plastics foil is, at its closed end (3), provided with a carrying handle (G) which is formed by a cord (8) or tape secured (4) to the bag material to either side (8a,b) of the handle. Part of the wall of the bag is formed by a strip of material (11) which may be transparent, and is secured in longitudinal direction to the adjoining front wall panels (1a) by eg. adhesive (12). At the carrier handle end, the strip is also secured to the inside of the rear wall panel by adhesive (13) or welding. This secured area (13) extends laterally at least to the cord (8) fixing areas (8a,b).
Patent DE-2934091-A1 (DE)
Inventor: MOTTE SHUNISHI
IPC: H03H9/02
Filed: 1979-08-23
Abstract: An AT-cut quartz resonator is disclosed, wherein the length l, the width w and the thickness t of the quartz crystal plate are respectively chosen in the directions of an electrical axis (X-axis), an optical axis (Z'-axis) and a mechanical axis (Y'-axis), the width-to-thickness ratio w/t is chosen in the range of 2.0 to 2.8 and the length-to-thickness ratio l/t is chosen less than 25. Consequently, an AT-cut quartz resonator of miniature size having high Q-values of the major mode and excellent frequency-temperature characteristics of the vibration frequency is realized.
Patent DE-2936780-A1 (DE)
Title: Diode or thyristor arc protection device - is ceramic ring with inner plastics layer against semiconductor disc inside sealed housing
Inventor: EHINGER HERBERT DIPL PHYS DR R
IPC: H01L21/52
Filed: 1979-09-12
Abstract: The semiconductor device (6) handles heavy currents. A rectifier diode (6') can be enclosed by a ceramic ring (2) between two copper end plates (3,3') with flanges (31,31'). The annular gaps between the ring and plates are closed by Ni-Fe rings (4,4'). Inside, is a centering ring (5) for the diode, fitting over the top of the lower end plate. Fitted around the diode is a further protective ring (64) of ceramic material. This ring has an inner passivated region (65) for a plastics layer which rests on the surface of the diode, and also on a further support ring (62) under the diode. This acts as a protection against arcing in the event of overload. An alternative design protects a thyristor disc with a central control electrode.
Patent DE-2942315-A1 (DE)
Title: Instrument holding frame for control panel - has angle frame with sealing strip, bolt holes and handles, housing slide rails
Inventor: LEVERSBERG SIEGFRIED
IPC: H02B1/04
Filed: 1979-10-19
Abstract: The central control point for monitoring engines etc., includes a cupboard or panel to which is attached one or more frames for holding instruments. The frame is rectangular, and made from angle section material enclosing a rectangular opening. The two short sides each have two holes for securing bolts and a D-shaped handle. The two long sides are shaped for attachment of rails to receive the sliding parts of the measuring instruments. The outside surface of the angle frame is suitably finished, and a small return flange retains a sealing strip all the way round. The corners are rounded.
Patent DE-3005106-A1 (DE)
Inventor: REISCHL ARTUR DIPL CHEM DR
IPC: C08G18/79
Filed: 1980-02-12
Abstract: The instant invention is directed to a process for the continuous preparation of polyisocyanates containing uretdione groups comprising dimerizing aromatic polyisocyanates which are free from uretdione groups in the presence of catalysts which accelerate the dimerization of isocyanates, at -30 DEG  to 90 DEG  C. in a self-cleaning, coolable screw reactor with continuous feeding in of the free polyisocyanate and of the dimerization catalyst, and in the presence of from 3 to 90% by weight, based on the whole mixture, of an additive containing hydroxyl groups, which additive comprises either (i) a compound within the molecular weight range of from 62 to 10,000 containing at least one hydroxyl group or (ii) a mixture of several compounds having an average molecular weight within the range of from 62 to 10,000 containing at least one bound hydroxyl group, wherein said hydroxyl-containing compound or compounds are added to the reaction mixture before the isocyanate used as starting material solidifies due to the dimerization reaction.
Patent DE-3006388-A1 (DE)
Title: Ladder hung tool or material rest - has hanger loops for attachment to top safety loops or rungs
Inventor: BECKER KLAUS DIPL KFM
IPC: E06C7/16
Filed: 1980-02-21
Abstract: The system is used for ready-to-hand storage of tools, materials, power units and other articles, on a depositing surface for hanging on ladders of all types while in use. The unit can be hung at the top, with rigid or adjustable hanger loop shackles, on the safety loop catcher, treads, steps or rungs of existing ladders. Its rear edge fits against the stringers, or their extensions. A device on the unit provides for horizontal setting of the surface. It can be hung so as to be located in the ladder longitudinal axis, with no tendency to cause tilting. It may be made of metal, wood or plastics.
Patent DE-3007604-A1 (DE)
Inventor: KUNZE DIETER DIPL ING
IPC: H02G15/10
Filed: 1980-02-28
Abstract: A sleeve head for closing an end of a cable sleeve, which sleeve head being a one piece member of a shrinkable material having a transverse wall with an integral outer wall portion and having at least one flange surrounding an opening so that a cable can be sealingly received in the head by shrinking the flange from an expanded state towards a normal state into sealing engagement on the cable, characterized by each of the flanges in the expanded state being expanded only in a radial direction and having substantially no deformation and stresses along the axial direction of the opening and the transverse wall adjacent each of the expanded flanges being folded outwardly to compensate for the expansion of the size of the flange so that during heat shrinking the flange shrinks radially inward onto a cable disposed therein with a folded wall moving to a substantial transverse planar condition without any axial shrinkage of the flange to create disruptions in the seals. If the flange has a sealing joint which includes an axial slot of the flange extending through a portion of the transverse wall and the adjacent wall portion, the flange in the expanded state has a non-uniform expansion so that the flange adjacent the slot has substantially no expansion so that during subsequent shrinking no contraction occurs adjacent the slots to cause a disruption in the sealing joint. Different methods can be utilized for expanding the flange without causing axial deformation.
Patent DE-3007780-A1 (DE)
Title: Steplessly adjustable drive control system - has externally-unloaded pressure-relief valve in tapping off pipe from pump
Inventor: KRUSCHE ALFRED
IPC: F16H61/46
Filed: 1980-02-29
Abstract: The control system is for a steplessly adjustable and pref. hydrostatic drive, whose setting is determined by a control pressure generated in a current before a throttle supplied by a constant-output pump driven at the speed of the input shaft. A tapping is taken from the pipe between the pump and the throttle to the control pressure pipe, and from it a second pipe containing a throttle branches off, the pipes joining together again after the throttles. In the tapping 9,11), and between its connection (16) to the pipe (2) from the pump (1) to the first throttle and the point (17) where the second pipe (13) and the control pressure pipe branch off, there is an externally-unloaded pressure-relief valve (10).
Patent DE-3008778-A1 (DE)
Title: Sewing machine control - has three-position selector switch and compressed air unit
Inventor: ZAWISCHKA DIETER
IPC: D05B23/00
Filed: 1980-03-07
Abstract: The sewing machine control has a selector switch to give automatic or manual working, and a further setting for semi-automatic operation, so that the setting for the given sewing programme and speed is dependent on the operation of the foot switch. There is also a compressed air unit, for the air jets in the fabric support platform, connected to the selector so that it is coordinated with the control unit and dependent on the setting of the selector. The design gives a simple mechanism, with an easy operation, to allow a variety of stitching conditions.
Patent DE-3010319-A1 (DE)
Title: 1-oxa:di:azolyl-propenyl phosphate or phosphonate ester derivs. - and two analogues, useful as insecticides, acaricides and fungicides
Inventor: KUEBEL BOERRIES DIPL CHEM DR
IPC: A01N57/24
Filed: 1980-03-18
Abstract: Phosphorus esters of formula (I) are new. R1 is H, 1-4C alkyl (opt. substd. by halo or phenyl, itself opt.substd. by 1 or 2 halo, 1-3C alkoxy or 1-3C alkyl), 2-6C alkoxyalkyl, phenyl (opt.substd. by 1-3 methyl, halo, 1-3C alkoxy or nitro) or pyridyl. R2 is 1-4C alkoxy. R3 is 1-4C alkyl, alkoxy or alkylthio, chloromethyl or phenyl. X is oxygen or sulphur. The E-stereoisomers of (I) are pref. (I) are made by reacting a 5-acetonyloxadiazole with Hal.P(X)R2R3. (I) are useful for control of insects, acarids and fungi in plant protection (they hava a partly systemic action) and also for protecting stored goods and in hygienic applications. As fungicides (I) have particular good activity against the true mildews and Podosphaera leucotricha.
Patent DE-3011286-A1 (DE)
Title: Pressure cooker lid lock - has cam plate fixed to safety valve, moving spring loaded thrust rod into opening
Inventor: RISCHE WERNER
IPC: A47J27/092
Filed: 1980-03-24
Abstract: The pressure cooker has a safety valve (3) and a lid lock (4) and is designed so that the cooker can be opened without danger. The safety valve (3) is positioned in the lid and automatically opens with excess pressure and lets steam out. The locking device ensuring that the lid lock (4) is kept closed when the safety valve is closed consists of a cam plate (6) fixed to the safety valve (3). The cam plate (6) moves a spring-loaded thrust rod (7) into an opening (9) in the lid lock (4).
Patent DE-3012784-A1 (DE)
Title: All weather buoyant oil slick removal appliance - has additional chamber with hollow ring below first, submerged druing pumping
Inventor: DONSBACH FERDINAND
IPC: E02B15/04
Filed: 1980-04-02
Abstract: Fluid to be removed flows into a chamber located in the water, linked to two pump systems, one for lowering the level inside and the other for sucking the fluid out, the chamber being a hollow ring of variable buoyancy, totally submerged, under adequate pumping in provision for large slicks of oil from water. Beneath a hollow ring there is another enclosed space with another hollow ring of variable buoyancy. With pumping switched off, or inadequate, this has its top edge protruding from the liq. surface, while adequate pumping causes it to lie below the surface, between the hollow rings. This remains functional even in rough seas.
Patent DE-3014757-A1 (DE)
Title: Splitting appliance for wood - has wedge pressed into fibre line, on support frame holding wood pieces
Inventor: BERR HANS
IPC: B27M1/00
Filed: 1980-04-17
Abstract: Complete safety in handling is a feature of a device for splitting pieces of wood, or similar objects. A support frame (14), on which the pieces can be set up without being displaced, provides a mounting for a splitting wedge (2), which is hydraulically, pneumatically or mechanically pressed into the pieces, in the direction of graining, against the action of a return force (12). The frame can comprise a U-shaped housing (1) supporting the wedge, engaged by sloping mountings (3) bearing a protruding support panel (16) at their ends. They can be fitted with fixed or folding loop shackles.
Patent DE-3017802-A1 (DE)
Title: Electrosensitive recording medium for registering appts. - can record on both sides using metal layers deposited on paper or plastics base
Inventor: WIDL GERHARD DR ING
IPC: B41M5/24
Filed: 1980-05-09
Abstract: An electrosensitive recording medium can store image information as well as alphanumeric data. It consists of a layer of metal, which can be burned off, deposited onto a paper base. The metal is pref. aluminium. The medium can be used on both sides which enables a saving to be made in recording paper and a doubling of the recording speed. This is achieved by depositing metal layers (12,12') on both sides of the base material (10). Symmetrical coats of first lacquer (11,11') and/or printing ink are applied on both sides followed by the metal layers (12,12'). The ink provides an optical contrast to the metal which remains after burning off. The contrast may alternatively be achieved by the colour of the base paper or a lacquer with a carbon pigment content. A plastics base material can be used.
Patent DE-3021728-A1 (DE)
Title: Bromination of 4-tert. butyl toluene - giving mainly corresp. benzal bromide deriv., useful for making 4-tert. butyl benzaldehyde
Inventor: BLANK HEINZ ULRICH DIPL CHEM D
IPC: C07C22/04
Filed: 1980-06-10
Abstract: Method comprises reacting 4-tert:butyltoluene (I) with 1.2-3.2 moles bromine at opt. in presence of an inert organic solvent or diluent. Partic. reaction is with 2-2.1; 2.2-3.2 or 1.2-1.9 moles bromine per mole (I). Also new are mixts. contg. (wt.%) (a) 90-93% 4-tert. butylbenzal bromide (II); 3-4% 4-tert.butylbenzyl bromide (III) and 4-6% 4-tert.butylbenzotribromide (N); (b) 15-95% (IV) and 5-85% (II), or(c)40-85% (II) plus 15-60% (III). The reaction mixts. can be hydrolysed to prod. 4- tert.butylbenzaldehyde (a starting material for perfumes) and 4-tert.butylbenzoic acid (a component of alkyd resins and starting material for varnishes). The proportions of (II), (III) and (IV) in the mixt. can be varied by controlling the amt. of bromine used; any (III) formed can be sepd. and recycled for further bromination. This gives an overall (II) yield of 95-100%. The method does not require any free radical catalysts or irradiation, and relatively crude (I) can be used.
Patent DE-3022676-A1 (DE)
Title: Pressure controlled flow regulator for hydraulic brake booster - has two=part housing, with one part mounting by=pass valve with both cylinder bores
Inventor: MUELLER HORST
IPC: G05D16/10
Filed: 1980-06-18
Abstract: The flow regulator has a spring-loaded by-pass valve piston which, on longitudinal displacement in a cylinder bore, frees a by-pass bore. A dual-position pilot valve has a housing with projecting valve plunger. The plunger is actuated by a pilot piston, axially displaced against a plate spring force. The regulator housing consists of two sections (1,2) connected along a plane (28). The by-pass valve cylinder bore (4) and the pilot piston cylinder bore (21) are located in one section (2), and are at right angles to that plane. A chamber (26), accommodating the plate spring (25) extends from the plane (25), extends from the plane. The pilot valve housing (10) is located in a bore (11) of the second regulator housing section.
Patent DE-3034277-A1 (DE)
Title: Video pre-emphasis system to enhance signal nose ratio - uses high-pass filter in parallel with low band amplifier on output of TV camera tube
Inventor: HEISTER HEINZ
IPC: H04N5/228
Filed: 1980-09-11
Abstract: The pre-emphasis filter network is inserted between the picture tube output and a video amplifying stage in a TV camera system. The circuit is suitable for broad bandwidth video signals at frequencies up to 30 MHz. The circuit is an LC filter with the capacitors (C1,C2,C3,C4) in series and the coils in parallel (L1,L2,L3) between the output of the picture tube (AR) in the camera and the first video amplifier stage (V1). The pre-emphasis high pass filter (HP) is connected in parallel between the picture tube output (AR) with a low band amplifier (TP). The outputs of both circuits are recombined by a summation circuit (R3,V5).
Patent DE-3045146-A1 (DE)
Title: Motorised centrifugal liq. pump unit - has auxiliary second stage pump circulating liq. to cool and lubricate motor without evaporation
Inventor: TSUTSUI TOSHIAKI
IPC: F04D13/06
Filed: 1980-11-29
Abstract: The motorised centrifugal pump unit is partic. intended for handling a liq. with high vapour pressure such as LPG. The pump section (10) communicates with the motor (12) via at least one passage (42,38,47,34,36) to cool the motor between the stator (26) and the rotor (28), and to lubricate its bearings (30,32). The passages extend from the pump chamber (16) and contain an auxiliary pump chamber (38) containing an impeller (40) which is fixed on the rotor shaft (24) and arranged at the liq. entry side to the motor. After passing through the motor, the diverted liq. returns (44) to the delivery side (22) of the pump. The arrangement prevents evaporation due to pressure drop and consequent lubricant starvation of motor bearings.
Patent DE-3049132-A1 (DE)
Title: Combined heat pump and boiler circuit - has mixer valve coupled to heat pump return line and boiler feed line
Inventor: PARTNER LOTHAR DIPL ING
IPC: F24D3/18
Filed: 1980-12-24
Abstract: The combined heat pump and boiler circuit for a central heating and hot water system includes a multi-way mixer valve (4). The return line (6) for the latter is coupled to the return line for the heat pump (1) and the feed line for the heat pump (1) and the feed line for the heat pump (1) is coupled to the return line for the boiler (2). The feed line of the boiler (2) is coupled to the feed line (7) of the mixer valve (4). The latter is also coupled to the feed and return lines for the radiators. The heat pump may be bridged by a bypass line incorporating a blocking valve (8) coupled to the return line (6) of the mixer valve (4). The circuit allows the heat pump to be used to supplement the gas or oil-fired heating system.
Patent DE-3049266-A1 (DE)
Title: Rotary drum furnace for mixing and heating abrasive bulk materials - using inexpensive steel for outer casing, and inner lining of refractory metal or concrete plates resisting abrasion
Inventor: HARTMANN HEINZ-LEOPOLD DIPL IN
IPC: F27B7/28
Filed: 1980-12-27
Abstract: The furnace has an outer tubular casing made of a normal heat resistant steel, and an inner casing assembled from easily replaceable flat plates made of heat-resistant cast iron; heat resistant pressings, or refractory concrete. At least some of the plates or bricks forming the inner casing pref. possess eyes for hooks used to locate the plates or bricks on the outer casing of the furnace. The plates or bricks pref. also possess feet resting on the outer casing. Similar conventional furnaces use a casing made of very expensive, highly-alloyed steels(A) resisting very high temps.. The invention replaces steel(A) by a less expensive steel used as the outer casing, and employs wear resistant plates or bricks as an inner lining, so the overall cost of the furnace is reduced.
Patent DE-3101662-A1 (DE)
Title: Table saw
Inventor: BEHRENDT MANFRED
IPC: B27B5/22
Filed: 1981-01-20
Abstract: The table saw, the driven circular saw blade (34) of which partly projects through a slot (40) in the table top (12) on one side of the same, has in particular the following features: the circular saw blade is directly fastened to the drive shaft (30) of the drive motor (22); the drive motor (22) is mounted on the table top (12); the table top (12) is divided in the direction of the slot (40); both parts (14, 16) of the table top (12) are pivotable about an axis (20) which runs at an angle of 90 DEG  to the direction of the slot (40). <IMAGE>
Patent DE-3102045-A1 (DE)
Title: Sheet-feeding device
Inventor: TAMURA AKIHIKO
IPC: B65H3/04
Filed: 1981-01-23
Abstract: A reliably operating sheet-feeding device contains, on a shaft allocated to a sheet stack, a first roller which is rotatable freely on said shaft and has a driven, endless feed or conveyor belt guided around said roller, and at least one, preferably one each on each side of the first roller, feed roll or feed roller whose radius is larger than that of the belt in the region of the first roller and which comes into engagement with the topmost sheet of the sheet stack. Preferably the movement rate of the feed belt or conveyor belt is higher than that of the feed rolls or feed rollers. The novel sheet-feeding device makes possible fold-free individual sheet transport.
Patent DE-3124817-A1 (DE)
Inventor: WEYRICH CLAUS DR PHIL
IPC: H01L21/208
Filed: 1981-06-24
Abstract: A luminescent diode is comprised of n- and p-conductive layer components in which a graded bandgap is present and between which a pn-junction is present. The p-conductive layer component is produced by means of an additional zinc additive during an epitaxy processing utilized for manufacturing the device. The luminescent diode of the invention has improved efficiency and a higher modulation capability cutoff frequency.
Patent DE-3126315-A1 (DE)
Title: Method and device for utilising and converting kinetic wind energy by means of a helicoidal double-bladed horizontal wind generator
Inventor: LUEDKE JOSEF DR RER NAT
IPC: F03D3/06
Filed: 1981-06-26
Abstract: The helicoidal arrangement of surfaces exposed to the wind causes a diversion of the unused or not fully utilised wind potential, a) through the gap to the surface behind, b) to the surface above this. Turbulence is largely prevented by a special profile design of the ends of the surface, thereby obtaining most effective utilisation of the wind. At the same time a propeller-like effect (power) is thereby produced, or of a plurality of propellers depending on the number of spirals in the arrangement. Due to the special arrangement of the individual surfaces and angular position of these, the power is supplemented in contrast to the mutual impairment otherwise usual. In a cost-effectiveness ratio, the cumulative forces thereby generated result in many times the effectiveness of wind energy-driven devices hitherto known. Operation possible even close to the ground, furthermore with the shortest starting characteristics.