baber/WOPTO huggingface dataset:
Patent DE-2634189-A1 (DE)
Title: Consolidating sub-structure of roads or runways - by adding binder contg. hydrophobic cement and lime, and compacting
Inventor: RECHMEIER HELMUTH DIPL CHEM
IPC: E01C3/04
Filed: 1976-07-29
Abstract: Earth or soil consisting of fine or mixed grain sizes is consolidated for use as the substructure for roads, etc., where a binder is mixed with the soil, followed by compaction. The binder is a mixt. of (a) a hydrophobic, hydraulic material; and (b) a non-hydrophobic, non-hydraulic material. Material (a) is pref. a hydrophobic cement, or milled, roasted oil shale, whereas(b) is fine CaO or Ca(OH)2. The binder pref. contains by wt. 50-80%, esp. 55-75% (a), with 20-50%, esp. 25-45% (b). If treated oil shale is used, alumina can be added to bond the anhydrite in the shale, esp. using 25% alumina w.r.t. the wt. fo anhydrite; alternatively, the alumina addn. may be achieved by adding a cement. Used under roads or airport runways etc. Apart from producing the required load carrying ability, six to eight hours elapse before the start of setting, so adequate time is available for proper compaction.
Patent DE-2634974-A1 (DE)
Title: Cross-over bridge for ramps - has bridge pivotably mounted on ramp and fitted at free end with pivot extension
Inventor: ALTEN KURT
IPC: B65G69/28
Filed: 1976-08-04
Abstract: Drive over bridge for ramps includes a bridge plate pivotably mounted with its rear end on the ramp. Adjoining the free end of the bridge plate is an extension positioned vertically downwards when the drive over bridge is not used and which is in the plane of the bridge plate to support its free end when the drive over bridge is used on a loaded or off loaded platform. In the hinge position between the extension and the bridge plate stops limit the pivoting movement. One stop is in the plane of the bridge plate. The part of the extension which faces the bridge plate has its weight so determined that the centre of gravity of the extension is positioned between the bridge plate and axis of rotation when the extension is pivoted in the plane of the bridge plate. During pivoting of the extension from its vertical position in the plane of the bridge plate its centre of gravity is displaced over a top dead point. The extension (4) is fitted with a spring (17) which follows its pivoting movement and the displacement of the centre of gravity takes place at the same time as the following movement of the spring.
Patent DE-2636796-A1 (DE)
Title: Application of reaction fixable additives to textiles - esp. yarns and bands by drawing between rotating friction surfaces
Inventor: BISSCHOPINCK HEINZ
IPC: D06B1/12
Filed: 1976-08-16
Abstract: Additives which can be fixed by a reaction process such as steaming or heating, on textile materials in the form of bands or threads, and esp. textile yarns, are applied by drawing the textile thread across the face of a block of the additive at a consistency which allows it to rub off. The thread is pref. drawn between the end faces of two cylindrical blocks of the additive rotating on a shaft transversely to the line of motion of the thread. The particles rubber off by friction collect on the opposite sides of the yarn which is then subjected to the reaction process, possibly after winding. The end friction faces from which the additive rubs off, or the actual blocks, are formed with a circular section or, alternatively, they may have an elliptical section. The friction surfaces may include more than one additive arranged as a sector or a segment of the circle or ellipse, and the pressure applied is adjustable. Dyeing or printing processes on yarns and bands of material can be carried out much more cheaply. The elliptical shape of the block makes it possible to use longer and shorter paths applying different amounts of material to the goods.
Patent DE-2637024-A1 (DE)
Title: Adjustable ratchet slipping torque spanner - has removable rollers and given clamping angle within spanner head
Inventor: HEINEMANN FRITZ
IPC: B25B13/46
Filed: 1976-08-17
Abstract: The freewheeling ratchet torque spanner varies torque appreciably by the change in the number of the clamping rollers and the change in the clamping angle in relation to the friction angle. The torque once set is reliably maintained. Already a small variation within the roller (1) number, roller dia, the relationship between the clamping angle (2) and friction angle for otherwise constant dimensions ensures considerable differences of the transmitted torque. The torque spanner once set operates as a ratcheting spanner which begins to slip when the required torque has been reached.
Patent DE-2639369-A1 (DE)
Title: Multiple stone block sawing machine - has cutting frames driven by flywheel and crankshaft between two pairs of stone blocks
Inventor: CASTRO GOMEZ LUIS
IPC: B28D1/06
Filed: 1976-09-01
Abstract: The stone block sawing machine is designed to cut four blocks at the same time into horizontal slabs. The blocks are arranged in two pairs, a pair each side of the drive system. The drive can be include a motor, a flywheel (5) and a crankshaft (4) mounted on a height adjustable platform (6) to correspond with the height of the saw blades. The blades are mounted in sets in frames (2) extending sideways horizontally from the drive unit, and move downwards as each slab is cut. The flywheel drives the horizontal crankshaft which has four connecting rods extending sideways from it, connected to the frames, their connections being made at 90 deg. to each other around the crankshaft. Vertical travel is achieved by using vertical columns to carry the cutting mechanisms.
Patent DE-2644940-A1 (DE)
Title: Levelling monocrystalline silicon surfaces - by anisotropic etching with basic etchant
Inventor: YOSHIMURA MASAYOSHI
IPC: H01L21/74
Filed: 1976-10-05
Abstract: Prodn. of level surfaces on monocrystalline Si semiconductor substrates in which the surface consists of a (100) crystal plane with a depression, comprises first coating at least part of the bottom surface of the depression with an SiO2 layer. The uncoated parts are then subjected to anisotropic etching with a basic etching medium until they are level with the coated surface, after which the SiO2 layer is removed. The whole assembly can then be isotropically etched (to remove any indentations formed by anisotropic etching of the bottom of the depression when only partly coated with SiO2). The process is based on the fact that the (100) crystal plane is etched away 50 times faster than the (111) plane, so that the substrate surface can be etched without significantly etching away the walls of the depression.
Patent DE-2648089-A1 (DE)
Title: Electric distribution equipment casing with blank plate - uses length cut from endless extruded profile with side slots
Inventor: LEIBLE ERWIN
IPC: H02B1/015
Filed: 1976-10-23
Abstract: The blank plate, for closing openings in distribution equipment casings, consists of an endless extruded profile (13) with slots along both side edges to locate the edges (18) of the rectangular opening in the casing (10). The profile may have various cross-sections, e.g. the slots may be formed by L-shaped extensions on the outside or inside of a single-layered sheet or they may arise from using a two-layered sheet with internal webbing. The inside surface of the plate may have various projections (20-22) for mounting components inside the casing etc.
Patent DE-2648952-A1 (DE)
Title: Head rest for use in vehicle - has net stretched on support frame which is mounted in padded surround
Inventor: TREIBER HORST
IPC: B60N2/48
Filed: 1976-10-28
Abstract: The head rest for the car seat has a central cushion made from a net stretched over a frame (1) and set inside the outer padding rim. The net is sewn around the perimeter and has two openings at the bottom edge. The headrest support frame (1) is pushed through the holes and aligned with the net. A bracing bar is clipped across the bottom of the frame, inside the cushion to form a flat stretched shape. The frame is pushed through two holes in the outer padding loop and inserted into recesses in the top of the seat back.
Patent DE-2649616-A1 (DE)
Title: Photographic objective with four lenses - has aperture ratio of 1 to 2.8 and picture angle of at least 43 degrees
Inventor: GROEGER WOLFGANG
IPC: G02B9/20
Filed: 1976-10-29
Abstract: Four lenses in three groups form a photographic objective with a relative aperture of 1:2.8 and a picture view angle of at least 43 deg. The four lenses, in sequence from the aperture stop (BL) are respectively a thick biconvex converging lens, a thin bi-concave diverging lens and a cemented pair consisting of a thin bi-concave lens in contact with a thick bi-convex lens. The radii of curvature of the seven spherical surfaces are (for f=100)+38.8, -508.2, -71.7, + 31.4, -341.1, +39.5, -54.3. The lens thickness (and spacings) are 11.2, (5.4), 1.8, (7.6), 2.6, 18.4. The refractive indices are approx. 1.70, 1.60, 1.54 and 1.70 and the Abbe numbers 53.3, 35.1, 44.8 53.3.
Patent DE-2651249-A1 (DE)
Title: Photocell with adjustable sensitivity to red light - has grid electrode near and parallel to photocathode, at adjustable DC voltage
Inventor: GLAAB FRIEDRICH DIPL PHYS
IPC: H01J40/16
Filed: 1976-11-10
Abstract: The photocell has an adjustable red light sensitivity, as compared with impaired sensitivity in the long wave band of light of conventional photocells. Such reduced sensitivity can stop electric emission completely. This defect can be remedied by selection of respective cathode materials, or by application of an electric field between the photocell cathode and anode. Near the photocathode (3) is mounted parallel to the same a grid electrode (4) of identical size. This grid electrode is at adjustable direct voltag (UB). The spacing of the grid electrode and the photocathode is preferably 0.2 to 1 mm. The grid electrode may have a high transmittivity. The grid mesh may be about 50 microns.
Patent DE-2655097-A1 (DE)
Title: Polarised electromagnetic power switch - has pulsed excitation and large holding force in armature by permanent flux and electrical excitation
Inventor: SEVER JANEZ DIPL ING
IPC: H01H50/16
Filed: 1976-12-04
Abstract: A polarised electromagnetic power switch is excited by a pulse and is incorporated in remote controlled receivers. It achieves large holding forces in the armature by the arrangement of the permanent magnetic flux sources and the electrical excitation. The switch consists of a coil former (10) with windings (12), permanent magnets (5,6,8,9) and magnetically conducting poles (1,2,3,4). There is a H-shaped armature (11) with a set of contacts (7). The armature pivots about a point along the symmetrical axis of the switch. An upper source of the permanent magnet flux is formed by two magnetically conducting poles and two permanent magnets. The lower source of the permanent magnet flux is formed by two magnetically conducting poles and by two permanent magnets. The coil former is mainly circular and has its centre point on the symmetrical axis of the switch.
Patent DE-2656318-A1 (DE)
Title: Burglar alarm using infrared and Doppler shift detection - deploys radar or ultrasonic beams to reduce occurrence of false alarms
Inventor: WUNDERLE HELMUT STEFAN KASPAR
IPC: G08B13/19
Filed: 1976-12-11
Abstract: A burglar alarm uses a double transducer. One transducer is an infrared beam directed through an array of mirrors over the protected area, while the other is a Doppler shift detection system based either on centimetre band radar or an ultrasonic beam. Both detection transducers are required to produce a signal before an alarm signal is triggered. By this means the rate of occurrence of false alarms associated with transducers of one or the other of these types, is greatly reduced.
Patent DE-2657829-A1 (DE)
Title: Tunnel furnace with preheat zone - has reversible fan to recirculate hot gases in the preheat zone for uniform temps.
Inventor: HAESSLER ANDREAS ING GRAD
IPC: F27D7/04
Filed: 1976-12-21
Abstract: Temps. in the preheat section of a tunnel furnace are evened out using a reverse flow process. At least one reversible fan is used with suction branches in the lower part of the combustion passage. It is connected to reinjection points in the roof of the passage. The hot gases are then cyclically extracted from the lower zone of the furnace and are reinjected via the inlets in the roof. The suction points of the fan are connected both with the lower section of the combustion zone and with the space below the firing trolleys. Partition walls with adjustable slides are provided between the zones below the trolleys. A reverse flow fan can be located at both furnace inlet and outlet and both operated simultaneously in sucking and blowing modes. Used in tunnel furnaces and reduces the temp. differing between the top and bottom of the furnace passage caused by the high thermal inertia of the trolleys.
Patent DE-2658055-A1 (DE)
Title: Flat chassis for TV receivers - has high heat dissipation components arranged to produce chimney stack ventilation effect
Inventor: KRAUS HEINZ ING GRAD
IPC: H04N5/655
Filed: 1976-12-22
Abstract: The flat chassis for TV receivers, has an improved heat dissipation facility designed for modular construction and due to the increased air circulation and heat loss, smaller heat sinks can be fitted to components. The modules or individual circuit boards are plugged together one above the other or side by side. The components with high heat output are arranged alongside each other in rows in such a way that the relative temp. variation rises and falls along a row. The temp. change over the next row of components in the stack is in opposition to that of the preceeding row. With the arrangement of the heat-producing components in a vertical direction, a zig-zag temp. variation pattern is produced. The chimney stack effect produces a more rapid flow of air and hence, better cooling.
Patent DE-2700817-A1 (DE)
Title: Powder materials processing system - using descending vortex flow with spray nozzles and adjustable ascending gas flow; esp. for processing milk powder, starch, vitamin(s), etc.
Inventor: GRUEN GUSTAV
IPC: A23K20/158
Filed: 1977-01-11
Abstract: Powdery or granular materials are cooled, heated and/or sprayed with liquid or fused materials, by introducing them at the top of a cylinder as a vortex with a vertical axis. A descending gas stream takes them along through a spraying zone. Finally, an ascending counterflow can be adjusted to control the sizing action and/or the residence time. The dissipation of heat is thereby facilitated (if cooling is required). Uniform spraying is ensured and the spray nozzles do not become clogged. The residence time can be easily adjusted and re-crystallisation after packaging is eliminated. Used for mixing of milk powder, starch, vitamin prepations, baby food, detergents, paints; spraying fat on skimmed milk powder.
Patent DE-2704213-A1 (DE)
Title: Electrolytic dissociation of sodium chloride - using a raney neckel cathode and a perforated anode with a diaphragm made of a cation exchange material sandwiched between the electrodes
Inventor: MACMULLIN ROBERT BURNS
IPC: C25B9/19
Filed: 1977-02-02
Abstract: Chlorine and caustic alkalies are produced by an electrolytic dissociation of alkali chloride and with the evolution of H gas, by using a combination of (a) a cation exchange diaphragm and (b) a porous metal cathode of low H overpotential which is located next to the diaphragm and the anode. The anode chamber, separated by the diaphragm from the cathode chamber is filled with an aq. soln. contg. 20-27 wt. % NaCl held a temp. 60-90 degrees C, and the cathode chamber is filled with an aq. NaOH soln., the concn. of which is maintained at 25-50 wt. % (20-45 wt. %) NaOH by replacing drained cuastic alkali soln. by water, and held at a temp. 60-90 degrees C. The cell is operated by using a direct current of c.d. 0.54-5.4 Ka/m2 (1.07-4.28 kA/m2) through an anode of stable dimension in the anode chamber, a Raney nickel electrode in the cathode chamber and fed through the soln. via the diaphragm between the anode and cathode, which is composed of a polymer of perfluorsulphonic acid-poly-fluorhydrocarbon. Bubble formation between the electrodes is minimised so that the electrodes with the diaphragm between can be located close to each other. Pollution problems are greatly reduced as no Hg is used in the construction of the cells.
Patent DE-2706078-A1 (DE)
Title: Increasing circulation speed in aeration tank - by shielding ends of baffle wall from effect of agitators
Inventor: EXNER KLAUS DIPL ING
IPC: C02F3/12
Filed: 1977-02-12
Abstract: A device for increasing the speed of flow, is used in the circulating pit of an effluent clarification plant, in which a partition divides the pit to promote flow around it and the liquid is gasified or aerated by agitators. Teh deflection zone immediately adjacent to the end of the partition is shielded from the field of nfluence of hte agitator by a semi-rotationally symmetrical hollow object. Pref. where surface agitators are used, the hollow object is conical. In an activated sludge tank, the amt. of agitation required for biologicla purposes is frequently less than the amt. required to promote sufficient speed of circulation to prevent settling of the sludge. The reason for this is the recirculating effect in the immediate vicinity of each agitator. By protecting the ends of the partition walls, this recirculating effect is suppressed and an improved circulation throughout the tank is achieved for a given degree of power supplied to the agitators.
Patent DE-2707040-A1 (DE)
Title: Offset printing press sheet feed - has auxiliary sucker fitted opposite sensor element at sheet stack rear edge (CS 30.6.77)
Inventor: VOLF JIRI DIPL ING
IPC: B65H5/08
Filed: 1977-02-18
Abstract: Sheet feed mechanism which need not be adjusted for different types and thicknesses of paper sheets, consists of lifting suckers (1, 2) fitted at the rear edge (13) of the sheet stack (12). The suckers lift the uppermost sheet in direction of the arrow (D) and at the same time feed suckers (3, 4) together with auxiliary sucker (5) move in direction of arrow (C) so far, until it is at the same level with lifting suckers (1, 2). At the end of the travel of the lifting suckers (1, 2) sheet (15) comes to rest against the auxiliary sucker (5). Following that the feed suckers (3, 4) and the auxiliary sicker (5) hold the sheet and the lifting suckers (1, 2) release the sheet. A gap (17) appears between the sheet stay (12) and the lifted sheet, sensor element sets down on the sheet stack and starts blowing air towards the gap (17). On the resulting ari cushion the sheet slides towards the feed mechanism and to the feed rollers (7, 8, 9).
Patent DE-2711808-A1 (DE)
Title: Mounting arrangement for interchangeable electricity meters - has meter by=pass and interlock to avoid interrupting supply
Inventor: LEIBLE ERWIN
IPC: H02B1/03
Filed: 1977-03-18
Abstract: The meter mounting position for interchangeable electricity meters consists of a base plate with bus bars by which the meter is connected to the supply line. The meter terminals for each phase on the input and output side are connected by flying leads terminated by a two-pin polarised plug. The input side of the meter plug has a square pin, the other is round. The body of each plug has a receiver hole. To change the meter without interrupting the consumer's supply, a manually-operated sliding locking mechanism is moved to one side (after removal of the lead seals) to allow the plugs to be withdrawn from the sockets in the bus bar cover. The action of the sliding bar causes bridging links to be made which automatically by-pass the meter without breaking the circuit to the load.
Patent DE-2711888-A1 (DE)
Title: Double glazing using sealing adhesive on spacer frame - and protective layer shielding adhesive from ultraviolet light
IPC: C03C27/12
Filed: 1977-03-18
Abstract: Insulating glass, e.g. double glazing, has air tight spacers located round the edges of the planes with an adhesive. At least the edge of the panes exposed to radiation (a) are provided with a protective layer (b) for the adhesive. The protective layer (b) pref. only protects the adhesive from UV light (a), but the protection may extend into the visible region, esp. by using a reflecting layer (b). Alternatively, a layer (b) absorbing UV(a) can be used. Layer (b) is applied on the outside and/or the inside of the pane periphery, and is permanently adhesive and weather resistant. The layer (b) can consist of metallic substances applied mechanically, by spraying or evapn.; or by spraying on an organo-metallic soln. Layer (b) shields the adhesives from UV light which can cause adhesives to lose their bonding and sealing properties.
Patent DE-2719237-A1 (DE)
Title: Combined trim and groove blade for book binding - has series of oblique parallel grooves on surface near cutting edge producing grooves in block spine to facilitate gluing
Inventor: MIYAMOTO EIJI
IPC: B26D1/00
Filed: 1977-04-29
Abstract: The flat side of the blade (1) has a large number of oblique parallel shallow grooves (2) which extend from the cutting edge to half the width of the blade. The cutting stroke of the machine carrying the blade is at the same angle as the inclination of the grooves so that oblique grooves are cut in the edge of the block of pages. The grooves facilitate the application of adhesive for binding the book. This type of blade enables page trimming and grooving to the done in a single operation.
Patent DE-2719794-A1 (DE)
Title: External driving mirror for car - has swing back joint with two parallel pivoted plates and internal adjustment lever
IPC: B60R1/076
Filed: 1977-05-03
Abstract: The external driving mirror has a shallow housing with a flat profile face to lie alongside a flat baseplate secured on the outside of the car. The joint between the mirror and the baseplate has two parallel plates joined by their hinged edges and with the plates joined to the baseplate and housing by orthogonal edges. The pivot mounting is slim and allows the mirror to be mounted closed to the side of the car so that the joint is not easily fouled, while the swing back effect is not impaired.
Patent DE-2727698-A1 (DE)
Title: Stabilised bar compression springs - are for prestressed concrete roadway and are in pressure fields, with upright tension anchors for edge zones
Inventor: BORSDORF HEINZ DIPL ING
IPC: E01C7/16
Filed: 1977-06-15
Abstract: The bend-stabilised bar compression springs are used in prestressed concrete roadways with stabilised substructures. They are arranged in pressure fields, prestressing flat surfaces in one and/or two axes. The road edge zones are secured from displacement by friction-enhancing vertical or sloped prestressed tension anchors. There are also prestressed vertical and sloping ground tension anchors in these zones and in other sectors, wherever desired. The compacted subgrade material is surrounded on all sides, with a transverse expansion checking effect, by spread foil sheets, lateral support structures, the roadway concrete slab and the structural base, or by borders made up from other elements. These have sufficient spring travel to follow elastic or plastic form variations, and reduced compression forces can be completed by subsequent stressing or additional materials. Spring stressing can be effected away from the site.