baber/WOPTO huggingface dataset:
Patent DE-2454411-A1 (DE)
Title: Hard tropical wood bridge construction - with individual elements cemented and dowelled, for added load bearing capacity
Inventor: BUDDEMEIER WILHELM ING GRAD
IPC: E01D2/02
Filed: 1974-11-16
Abstract: The bridge is made of tropical hardwood, for augmented load bearing capacity, as compared with those made of native timber, and for extension of the spheres of application, and increased resistance moment as with steel girders. The individual structural elements are cemented and dowel-plugged; they can be further reinforced with inlaid, firmly cemented iron inlays, which may be prestressed if high grade steel is used. Transmission of prestressing forces is undertaken by the cementing process. Connection of all the bridge girders can be effected by means of transverse anchors. The method can be used for prefabrication of all types of wooden bridges.
Patent DE-2456902-A1 (DE)
Title: Filing sorter with overlapping sheets - is made from a flat support and overlapping pockets in plastic material
Inventor: DANZER WERNER
IPC: B42F17/18
Filed: 1974-12-02
Abstract: Filing sorter with a number of inserting pockets consisting of a flat support and a number of scale-like overlapping sheets attached on one side of the support and connected along side edges lined up with each other and within the area of transverse edges largely vertical to the side edges. The sheets lying above the transverse edge (20) of a sheet have in at least one point of that cross edge lined up openings (26) which expose that first sheet (12) and that sheet (12) is connected to the flat support (10) within that exposed area. The openings (26) made for the cross edges of the individual sheets (12) are positioned in at least one row parallel to the side edges. The flat support (10) and the sheets (12) are made from thermo-weldable plastic.
Patent DE-2504260-A1 (DE)
Title: Synchronisation of two drive systems with relays - using differential gear generating error signal operating correction circuit relay
Inventor: HELBIG ROLAND
IPC: G06M3/12
Filed: 1975-02-01
Abstract: A system of monitoring is provided for synchronous operation of two drive systems with electro-mechanical counters. A differential gearing system has two switching type inputs that are impulse operated. So long as each impulse is applied simultaneously the output shaft which is coupled to a relay does not operate. When a signal is generated it indicates an error condition and correction is made. Two drives are coupled to the differential and the error impulse operates a cam to trip a relay. The relay operates to open contacts in the pulse supply line to the drive inputs. This condition is maintained until a manually operated relay is actuated to initiate a correction.
Patent DE-2507280-A1 (DE)
Title: Coarse and fine control for TV receivers - has coarse slider connected to common point of two resistors
Inventor: WENDT FRIEDRICH-KARL
IPC: H01C1/16
Filed: 1975-02-20
Abstract: An arrangement for coarse and fine control in television receivers, where very fine voltage settings are required for screening grids on colour tubes. The slider (9) on the coarse control potentiometer (7) is connected to the common point of two resistors (5, 6) whose other ends are connected to opposite ends of the fine control potentiometer (8). Coarse and fine potentiometers with their range setting ballast resistors (1, 2, 3, 4) are connected in parallel across the supply, and the connection eliminates the need for precision potentiometers. Even finer control may be obtained by adding another stage onto the fine control slider, and multiple fine controls may also be used with one coarse control.
Patent DE-2509109-A1 (DE)
Title: Sliding bearing made from compound material - has top layer made from lead-tin-copper alloy with varying copper content zones
Inventor: EHRENTRAUT OTTO ING
IPC: F16C33/12
Filed: 1975-03-03
Abstract: The bearing is manufactured from a base made from copper or light alloy on which a support layer is applied made from one of the ferrous metals or from brass. The top layer which forms the bearing material is made from an alloy of lead, tin and copper. This bearing layer consists of four zones with low copper content and three zones with high copper content. The bearing surface consists therefore of seven layers with seven border areas. The thickness of the diffusion zones between the border areas and the amount of its tin content is so low that even at very high loads no damaging reactions occur. During the electrolytic depositing of the bearing surfaces, the plating conditions are varied, especially the current density to obtain the variation in composition required.
Patent DE-2512361-A1 (DE)
Title: Specific heat determination of liquids - involves measurement of temperature and pressure before and after isoenthalpic expansion
Inventor: WITT KLAUS DIPL ING DR
IPC: G01N25/00
Filed: 1975-03-21
Abstract: An instrument is used for the determination of the specific heat of liquids, especially of hydraulic fluids, and its variation with pressure and temperature. The liquid is pressurised by a pump (2) and the pressure is adjusted by a valve (9). The fluid is then allowed to expand at constant enthalpy through an insulated valve in an insulated container (6) and the pressure and temperature are measured before and after the isoenthalpic throttle expansion valve. The pump (2) is driven by a motor (1) and there is a pressure relief valve (3) connected to the pump. After passing through the adjustment valve (9) the fluid passes through an oil cooler (5).
Patent DE-2521860-A1 (DE)
Title: Voltage control for AC motor with static inverter - shifts timing pulses to supply zero points to raise efficiency
Inventor: MUELLER EDMUND
Filed: 1975-05-16
Abstract: The voltage control, for a dc motor with a static inverter, reduces the voltage losses occurring in the gaps in the motor supply and allows the static inverter to deliver maximum outputs volts. The motor voltage is increased by shifting the timing pulses to the point where the motor is voltage passes through zero. The supply from the static inverter is therefore used to the full and gives a higher efficiency for the whole arrangement. A summing point is supplied with a square wave voltage and a triangular wave voltage when the instantaneous value of the triangular wave voltage is greater than that of the square wave voltage. The summing point is at a positive potential, and is at a negative potential when the value is less.
Patent DE-2522298-A1 (DE)
Title: Automatic catch input for skis - has two shackles with releasable lock and return unit
Inventor: STRACHWITZ MICHAEL VON
IPC: A63C9/00
Filed: 1975-05-20
Abstract: The automatic catch unit is for skis with moveable heel tensioner. The unit has two fork-like shackles (12, 13) with a releasable lock (15) at its free ends. For actuation, the shackles have a return unit, connected via a strap (7) to the ski and via a cable (4) to the heel tensioner (2), so that when the ski is put on, the shackles are locked. The shackles have a common pivot axis (14). The return unit contains a housing (6) with an angle lever (10). One lever end (10b) is hinged to the end of one shackle (12), and the other lever end (10b) is connected to the cable. The housing is fastened to the strap.
Patent DE-2525338-A1 (DE)
Title: Power generator for recovery of waste heat - has relatively low temp. energy converted to mechanical energy in turbine
Inventor: KRAUSS RALF HORST
IPC: F01K25/08
Filed: 1975-06-06
Abstract: A pump (P1) draws liquid from a reservoir (VB) and delivers it to a heat exchanger (WAT) in which it is evaporated by heat exchange with the waste heat from a conventional steam process. The vapour then passes to a vapour turbine (DT) which can deliver mechanical energy directly or drive an electrical generator. The exhaust from the turbine is condensed in a condenser (KS) and the resulting liquid returns to the reservoir (VB). The choice of a working fluid which has a suitably low boiling point at pressures near atmospheric enables useful mechanical energy to be recovered from heat at a temp. too low to be otherwise useable.
Patent DE-2531045-A1 (DE)
Title: Bonded clinker brick chimney top construction - uses prefabricated triple layer cross section units mounted with crane and formwork
Inventor: WEIGERT LUDWIG
IPC: E04F17/02
Filed: 1975-07-11
Abstract: The chimney tops are made from clinker bricks bonded together, eliminating difficult work on the roof, and preventing an unsatisfactory brickwork finish. Structural units, each comprising three vertical layers (I, II, III) of the clinked bricks (2-2) bonded together, forming a cross-section of the chimney, are prefabricated. The triple layer units (1) are then built up into a chimney top on the roof, if necessary with the aid of a crane. A formwork unit may be used in building up the layers, producing a heater, more regular finish.
Patent DE-2534919-A1 (DE)
Title: Magnetic or non magnetic hard metal carbides - by varying amt. of tungsten in binder matrix and produced by double decompsn.
Inventor: NEMETH BELA J
IPC: C22C29/06
Filed: 1975-08-05
Abstract: Sintered carbide prod. with opt. a magnetic or a non-magnetic binder matrix is produced by milling a mixt. of WC and Ti together with approx. 10% wt. Ni and sintering the compacted mixt. Sufficient Ti is added to form free W which then alloys with the Ni to form a binder matrix contg. is not >28% W. To form the non-ferromagnetic sintered carbide prod. the ratio of W in the binder to the binder alloy is 15-28% wt, whilst to form the ferromagnetic material this ratio is 14% wt. Pref. at least part of the Ti is added as a Ti-Ni alloy and/or Ti hydride. The compsn. may also contain approx. 1% wt Cr and grain growth during sintering is inhibited by adding 0.05-2.0% wt Ti. The props. can be made ferro-magnetic or non ferromagnetic as required whilst still retaining good strength and wear resistance together with chemical inertness. Used as magnetic type guides, cutting tools, and tools for glass making where Co contamination is detrimental.
Patent DE-2542287-A1 (DE)
Title: Fatty acid partial glycerides used in protective gas welding - for protecting metal parts and welding head against spray
IPC: B05D5/08
Filed: 1975-09-23
Abstract: Use of a partial ester (I) of glycerol with 6-24C (un)satd. fatty acids as coating agent for protecting metal surfaces and the welding head, esp. the nozzle of the welding equipment, against welding spray in protective gas welding. (I) afford better protection then triglycerides, are more stable in price than neat's foot oil and are uniform in quality. Neither pre-nor after-treatment of the parts is necessary, in the contrast to the case with silicone oils. The welding equipment is protected for long periods, so that dismantling costs are avoided. (I) is in liquid form. It can consist of diglycerides or a mixt. of mono- and di-glycerides, e.g. of oleic acid.
Patent DE-2549671-A1 (DE)
Title: Tube turn end trimming machine - has trimming cutter and calibrating mandrel at each end of two gears set at 90 degrees
Inventor: KIJEWSKI JOACHIM ING GRAD
IPC: B23B5/16
Filed: 1975-11-05
Abstract: The machine carries out trimming on tube bend ends using two trimmint gears arranged at 90 degrees. The workpiece is fitted at the apex of the 90 degree angle. Each gear consists of a guide track acting as a supporting surface for the sliding trimming gear. The sliding movement is induced from the hydraulic cylinder to a position rod to which the drive mechanism of the trimming gear is attached by a coupling (11). After the coupling a continuation of the piston rod is fitted into a collar which can slide on the rod but not rotate. After the collar the piston rod is fitted with a further hydraulic piston which is double acting. The piston operates within a cylinder and the channels terminate at either side of the piston.
Patent DE-2556796-A1 (DE)
Title: Transporter for large rolled wire rings - uses two parallel conveyors with intermediate station and connecting conveyor
Inventor: KOECHER ALFRED
IPC: B65G37/02
Filed: 1975-12-17
Abstract: The transporter is for large rolled wire rings, which are transported by C-shaped longitudinal hooks parallel to a conveyor path, e.g. rails, to reach an intermediate station, ready for the next stage. Two conveyor tracks (7a, b) are positioned parallel to each other, and have a central intermediate station. The tracks are connected via a transverse conveyor. The carriage frame (9) contains central track sections of similar length, parallel to the two tracks. The carriage may alternately be displaced at right angles to the tracks, so that one section forms an extension and/or a bridge in one track, while the other section is aligned with the intermediate station.
Patent DE-2604141-A1 (DE)
Title: Raisable working platform for aircraft maintenance - has height adjustable stairway with intermediate platform
Inventor: LANDES ALBERT ING GRAD
IPC: B66F11/04
Filed: 1976-02-04
Abstract: Aircraft maintenance platform where there is a fixed or mobile base frame, a height-adjustable stairway which is arranged laterally on the base frame and the working platform. The steps are fitted in parallel between struts which are hinged together in pairs in parallelogram fashion. A lifting cylinder supported on the base frame allows height adjustment of the working platform. The steps consist of several laterally spaced step sections (33, 34 etc.) whose step struts (38-41) are hinged to an intermediate platform (35) which connects adjacent step sections (33, 34). Together, these form a scissors type stairway and the step sections ensure the horizontal position of the intermediate platform (35) at each height.
Patent DE-2606204-A1 (DE)
Title: Steering for fork lift truck - with both front and rear wheels pivotted about lateral radii
Inventor: GRIESENBROCK KARL-HEINZ
IPC: B62D7/14
Filed: 1976-02-17
Abstract: Both the front and rear wheels of the fork lift truck are steerable, with the radii of curvature of all the wheels lying outside the vehicle (M). This enables the operator to swivel the vehicle in a confined space without swinging or dragging into the walls. The steering is suitable for any vehicle which has working attachments, such as lifting forks, which extend from the vehicle. The steering axis (M) is chosen to be near the working end of the vehicle so that the vehicle can swing about this point. The operator merely positions the front of the vehicle near an obstacle and swings the vehicle round this point.
Patent DE-2606466-A1 (DE)
Title: Bric unloading brick unloading mechanism from pallets - has reciprocating bridge with swing grab arm transferring bricks to higher conveyor
Inventor: HERRANDO VILLANUEVA ELISEO
IPC: B65G61/00
Filed: 1976-02-18
Abstract: The mechanism unloads bricks or tiles stacked on pallets or loading platforms, having means for altering the height of the bricks etc. and and a discharge position offset 90 deg. from the inlet position. It has a reciprocating bridge (1) secured to lateral mountings (2), coupled to a drive mechanism (3-5) and with a guide for a transporter slide (8). The slide has a drive (9) and a swing arm (12) with a grip (13) at the end. When a pallet is positioned under the bridge, reciprocating movement of the latter moves the arm into a vertical position where the grip secures a brick. The arm is then swung up again, the slide removed by its drive mechanism, and the brick deposited on a conveyor at higher level.
Patent DE-2614850-A1 (DE)
Title: Lamp housing for fluorescent lamps - has reflector of trough section for tubular lamps with fittings for lamp mounting
Inventor: WUNDERLIN WILLY DR ING
IPC: F21V7/00
Filed: 1976-04-06
Abstract: A lamp housing with a reflector for use with at least one fluorescent lighting tube has the reflector sections (3) for each tube (1) in the form of a trough (2) having a frame section (10) attached to its edge (8, 9). This section (10) has cut out parts for the trough-shaped reflector sections (3) and forms an edge frame (11) for the outermost reflector periphery. Each spout surface (4) of the frame has a hole (5) near which is mounted the lamp fitting (17) fixed to a support (14). The fitting (17) lies at least partially outside the trough type reflector section (3) but does not overlap or internally touch the edge frame (11).
Patent DE-2619240-A1 (DE)
Title: Diffusion transfer using soluble reducible silver salt - in activator, enhancing max. density without increasing fog
Inventor: PFAFF MAURICE EDGAR
IPC: G03C8/08
Filed: 1976-04-30
Abstract: In a photographic diffusion transfer process, in which a photographic recording material, consisting of a substrate and (1) negative Ag halide (AgX) emulsion(s) in contact with (2) a physical development layer contg. physical development grains, is exposed selectively and layer (1) is developed in the presence of a chemical developer cpd. a AgX solvent (I) and an alkaline activator (II), in such a way that (I) and (II) come into contact first with layer (1) and then with layer (2). (II) contains a soluble reducible Ag salt (III) and pref. also (I). The use of (III) enhances the photographic image produced in layer (2) in the areas of max. density only, without enhancement of the areas of min. density.
Patent DE-2621890-A1 (DE)
Title: Machine tool rotary table hyrostatic guide - has hydrostatically fed slide component movable on stationery fixed bearer plate
Inventor: ANDREOLLI CARLO
IPC: F16C32/06
Filed: 1976-05-17
Abstract: Circular hydrostatic axial guide for a rotatable clamping table, in which a table (1) rotates around an axis (2) vertical to its plane. A fixed bearer plate (3) is provided which defines a support plane (4). A hydrostatic slide component comprises a square base body (6) in the top surface (7) of which facing the support plane (4) a central lengthways cylindrical rib (8) is formed. In the working surface (9) of the slide component are two equal hydrostatic apertures (10, 11), which are fed with hydrostatic fluid. In the normal condition with the components all parallel to each other, the slide component rests on the support plate (4) along a straight contact line which coincides with the straight cover surfaces of the cylindrical rib (8).
Patent DE-2622284-A1 (DE)
Title: Tilting platform for vehicle repairs - lays vehicle on side for access to underside using square section or round section boss engaging jacking tube
Inventor: SCHABER JOSEF
IPC: B66F7/22
Filed: 1976-05-19
Abstract: The tilting platform is for use when repairing motor vehicles and for application of undersealing. It lays the vehicle on its side, so that during repairs on the underside the working position is accessible from the side, instead of overhead. The platform can have a square section or round-section boss, engaging in the tube provided on the vehicle to accommodate the jack. A clamping linkage can be provided, with hard rubber bosses engaging with the wheel rims to hold the vehicle in the tipped position. Alternatively, there can be stirrups gripping the tyres, and rotated for easy fitting these are partly covered by the wings.
Patent DE-2623186-A1 (DE)
Title: Tail flap for earth carrying vehicle - has non-clog flap with upper hinge on foward arm servo operated
Inventor: BERGMANN HERMANN
IPC: B60P1/26
Filed: 1976-05-24
Abstract: The tail flap of the tipper has its pivots set forwards, on short arms, away from the rear edge of the vehicle so that the flap is lifted and tripped away from the rear edge. A hydraulic servo arm (7) is linked between each short arm and bottom of the chassis to operate as the load is tipped. The flap cannot be jammed by debris and requires relatively small servo forces to operate. The upward movement of the flap is limited by stops and when the servo is removed it is held in the closed position by springs.
Patent DE-2623593-A1 (DE)
Title: Stretching and/or texturising synthetic yarns - by training them over a rotary element to impart transient twist and stretching following relaxation of twist
Inventor: PFENNINGSBERG JOSEF
IPC: D02J13/00
Filed: 1976-05-26
Abstract: Synthetic monofil or multifil yarns are stretched and/or texturised by passing them in the form of a loop over an element, a transient rotary movement being imparted to the yarns prior to stretching which is carried out at the pt. of resolution of the rotary movement. The device which imparts the transient rotary movement to the yarns is pref. the element which is rotated. The element is pref. preceded by a heating chamber having a pair of feed rollers over which the yarns are trained several times and the element is followed by a cooling chamber which has a similar arrangement of rollers. The rotary element may be provided with a required number of sharp edges. Stretching takes place along a much shorter length of the yarns whereby a better orientation of molecules in the stretched yarns can be achieved.
Patent DE-2629726-A1 (DE)
Title: Underfloor support frame for spare wheel - has L-shaped arms hinged at one end and with securing strap at other end
Inventor: JEHNE BERNHARD
IPC: B62D43/04
Filed: 1976-07-02
Abstract: The spare wheel is slung under the vehicle in a cradle shaped frame comprising an L-shaped arm in an open loop. The short arm of the L is hinged under the car (3) while the free end of the long, horizontal section (8) is supportd by hinged straps (15) suspended from the vehicle. The wheel is further supported by a bracket (12) welded to the middle of the frame. The wheel is slid onto the frame when the frame end is dropped to the ground. Added security is provided by fitting bolts through the middle of the wheel and through the bracket. The frame is simple to produce and can be fitted with an anti-theft lock on the rear straps.
Patent DE-2630575-A1 (DE)
Title: Plate filter with cleaner - having plates with central opening inside which eccentric scraper rotates
Inventor: BROKHAGE JOSEPH DIPL ING
IPC: B01D29/00
Filed: 1976-07-07
Abstract: Filter consists of a series of parallel plates mounted in a press with spaces between in which the filtered solids form a cake. The plates are circular and have a circular opening in the centre. To remove the cake a scraper is provided mounted on an axis running parallel to the axis of the plates. This rotates about its axis and simultaneously moves around the inner edge of the plates. The bundle of plates forms a circular passage down to centre in which the scraper rotates. Motion is translated to the scraper shaft from a central drive shaft connected to the scraper by a crank arm. There is a second crank arm at the base of the filter. Used for filtering solids from liquids, suitable for large installations e.g. communal waste water filtration. Plate filters using centrifugal action are not satisfactory for dry cake. This system permits removal of such cakes.
Patent DE-2632443-A1 (DE)
Title: Optical resolution of racemic aromatic cpds. - by chromatography on carrier-bound electron acceptor or donor
Inventor: BROCKMANN HANS PROF
IPC: C07B57/00
Filed: 1976-07-19
Abstract: Chromatographic resolution of racemic aromatic cpds. uses a stationery phase comprising an optically active electron acceptor (when the aromatic cpd. is an electron donor) or electron donor (when the aromatic cpd. is an acceptor) covalently bonded to carrier. The electron acceptor or donor bonded to the carrier must be capable of forming a charge transfer complex w%having a heat of formation of 0.5-20 kcal/mole with the aromatic cpd. The process can be used to isolate optically active mono- and polynuclear aromatic cpds., including asymmetric aliphatic cpds. into which removable aromatic substituents have been introduced. The stationary phase is more stable than those in which the carrier is simply impregnated with the electron acceptor or donor. In an example, racemic ethyl alpha-(N-carbazolyl)propionate is resolved on a column packed with the reaction product of NH2-modified silica gel and (-)-alpha-(2,4,5,7-tetranitro-9-fluorenylidenaminooxy)-propionyl chloride.