baber/WOPTO huggingface dataset:
Patent DE-2615532-A1 (DE)
Title: Primary cell using atmospheric oxygen - uses oxygen, cathode, anode and atmosphere energy generating cycle
Inventor: ERB GEORG OTTO DR ING
IPC: H01M8/00
Filed: 1976-04-09
Abstract: The primary cell operates on oxygen contained in air or on an externally supplied oxygen. The atmospheric oxygen is used in the following cycle: the atmosphere - the cathode - the mode - the atmosphere. In this cycle the elemental oxygen is maintained. The atmospheric oxygen becomes electromotorically effective via an oxygen loaded electrode (11). The ions introduced by the electrode into the electrolyte (13) are brought into discharge at the anode (15) in the same electrolyte, the anode being balanced with the hydrogen potential. Preferably the oxygen electrode (11) oxidise the hydrogen in the electrolyte and thus generates the primary cell power. Both the cathode and anode may be lifted and immersed respectively from and into the electrolyte path.
Patent DE-2622581-A1 (DE)
Title: Foot treatment appts. with horizontal vibratory platform - has spring foot presser mounted pivotably on stool like frame
Inventor: HAHN WILHELM
IPC: A61H1/02
Filed: 1976-05-18
Abstract: Foot treatment appts. comprises a horizontal platform (17) which vibrates in a direction perpendicular to its plane and which is mounted on a stool-like frame (1) for supporting the foot by the heel bone. On the frame is pivotably mounted a foot presser (23) which is pressed by spring force against the foot in the region of the metatarsal bone of the bit toe. The foot presser pref. comprises a pivot arm (24) with slidable pressure rollers (26) for the feet mounted on a shaft (25), and is connected to means for setting it in vibration. Adjacent to the platform on the stool-like frame may be mounted a stationary support (30) for the lower legs.
Patent DE-2628150-A1 (DE)
Title: Circuit for heating motor vehicle door locks - has heating circuit actuated by switch which is controlled by timing circuit with RC delay element
Inventor: ZAPLETAL DIETER
IPC: E05B17/00
Filed: 1976-06-23
Abstract: The circuit for heating motor vehicle door or boot locks includes an electrical heating element on the lock. This circuit is switched on by switch connected to the lock actuating arrangement. It is automatically switched off by a limiting switch for a specified heating condition. The limiting switch is a timing switch (5) which is tripped by the control switch (10). The timing switch has a control switch with transistors (7, 8) whose circuit (9) has control switch (10) and a time determining RC element (11, 12).
Patent DE-2636747-A1 (DE)
Title: Gauging system for numerically controlled lathe - has transducers to measure error after rough machining to control finished size
Inventor: RINN JUERGEN DIPL ING
IPC: G05B19/416
Filed: 1976-08-14
Abstract: The workpiece (3) is held in the jaws (4) of the chuck (2) of a NC lathe. The information stored in the controlling tape is such that the bore is machined slightly undersize and the outside dia. (8) is machined oversize. The bore and outside (8) are then checked with special gauges fitted with transducers. These transducers sense the difference between the dimensions of the work piece as initially machined and the dimensions required for the finished article. This information is transmitted to the control system so that the final machining results in the dimensions being achieved to a very high degree of accuracy.
Patent DE-2647380-A1 (DE)
Title: Paint spray gun with electromagnetic drive - has U=shaped support rail for pump cylinder, and has electromagnet and drive armature
Inventor: GRAU ERICH
IPC: B05B9/08
Filed: 1976-10-20
Abstract: The spray gun is esp. for paints. It has electromagnetic drive, with its armature actuating a pump plunger to supply the paint to the nozzle. A sheet metal support carries the electromagnet and a drive armature. It also accommodates the pump cylinder, and has buffer stops for adjustment of the stroke of the armature. The support consists of a U-shaped rail, with the electromagnetic drive being fastened between the side flanks, and the pump cylinder fastened between webs in the base. The drive unit and pump unit is built into the synthetic gun housing above the handle, with the paint container removeably fastened below it.
Patent DE-2648582-A1 (DE)
Title: Planetarium projector shutter control system - has each shutter rotating about projector optical axis and controlled by weighted lever
Inventor: BOEHME HELMUT
IPC: G09B27/02
Filed: 1976-10-27
Abstract: The control system, for the shutters of projectors providing a planetarium display, uses a weighted lever (7) for horizontal control of each shutter, which can rotate about the optical axis of the projector. The lever (7) has a weight (8) attached to its outer end and is carried by a pivot bearing (5) in a carrier plate (4) connected to the shutter ring. A projecting nose (9) is formed in the lever (7) between the pivot bearing (5) and the shutter end, which cooperates with two stop pins fixed to the carrier plate (4), to limit the rotation of the lever (7). Pref. the pivot bearing (5) for the weighted lever (7) has a smaller diameter than the bearing (3) for the shutter ring.
Patent DE-2650412-A1 (DE)
Title: Opto-electronic soln. density or concn. determn. - with two=stage temperature correction of emitter and receiver characteristics
Inventor: RUMMEL WERNER DIPL PHYS
IPC: G01N21/43
Filed: 1976-11-03
Abstract: A method of optoelectronically determining the density or concentration of a soln. consists of reflecting the light emitted from a luminescence diode through a succession of prisms immersed in the liq. using angles of reflection close to the limiting angle to total reflection and of measuring the intensity of the reflected light by an optoelectronic receiver. After temp. compensation, the result is displayed on an indicator device to give the density. The temp. compensation is carried out in two electronic stages in the first stage the fluctuation in emmission of the luminescence diode and the temp.-dependence of the optoelectronic receiver are eliminated, while in the second stage the stilling remaining temp.-dependence of the variable is balanced out sufficiently for a display of the density or concentration to be obtd. which is virtually independent of temp. Used e.g. for monitoring the electrolyte in electrochemical cells and indicating the acid density in accumulators. By employing a first stage to compensate the luminescence diode and first receiver almost the entire non-linearity of the curve is eliminated, giving a straight line possessing a defined slope. The second stage adjusts the slope of this line to zero.
Patent DE-2650760-A1 (DE)
Title: Water softener for use with dentist's equipment - has indication of spent state rapidly monitored in system exploiting volume change
Inventor: SAUPE MARTIN DIPL ING
IPC: A61C1/00
Filed: 1976-11-05
Abstract: A prompt indication is desirable, as the fine pipes in the dentist's instruments allow little room for chalk deposits. The active material of the ion-exchange water softener is held in an elastic bag inside a rigid container. As the ion exchange proceeds, the material in the bag contracts; when it is regenerated, it expands again. The change in size is used to operate an indicator that shows when the material needs regenerating. The elastic bag pref. stays clear of the walls of the rigid container, so that the material inside it can expand freely in all three dimensions. The risk of it bridging across a rigid container and so delaying the indication is avoided.
Patent DE-2651828-A1 (DE)
Title: Fruit grating machine - has rotating drum with several axial slots accommodating saw blades
IPC: B02C19/20
Filed: 1976-11-13
Abstract: Machine is used partic. for granting fruit mfr. comprises: a drum keyed onto a shaft and seated in a frame, rotating in a housing fitted with feed hopper. The lower part of the housing comprises a perforated plate and the housing is further fitted with grating block and cutting edge, both of which protrude from the inner surface of the housing towards the drum. The circumference of the drum has several axially located uniformly distributed slots to accommodate the saw blades. Halfway the depth of the slot bores are machined into the slots into which the cranked-out part of the two-edged saw blades are fitting. When the saw blades are slid into place, their position is secured by tight-fitting rods.
Patent DE-2656671-A1 (DE)
Title: Guide frame for hand held electric circular saw - has three equally spaced tubular brackets with guides for narrow work strip
Inventor: RAUTENBACH WALTER WILLIAM
IPC: B23Q9/00
Filed: 1976-12-15
Abstract: The guide frame for a hand held electric circular saw consists of two parallel lengths of angle iron joined by cross-members at each end. The frame is welded to three equally spaced brackets with tubular guides which slide over posts. The heights of the frame can be adjusted by a clamping screw attached to the tubular guide of the middle bracket. The circular saw is clamped in the curved slots of a U-shaped bracket mounted on a base with flanged edges. These flanged edges are a sliding fit between the corner faces of the angles and so guide the saw along a straight line. The saw can also be mounted at angle to cut an oblique surface.
Patent DE-2700514-A1 (DE)
Title: Storing elements of nuclear fissionable material - in spaced array of separate neutron absorbing shields with intermediate moderator material
Inventor: BEVILACQUA FRANK
IPC: G21C19/40
Filed: 1977-01-07
Abstract: Storage appts. for fissionable elements includes an array of separate open-ended neutron absorbing shields. Each shield encircles one of the elements. Each shield is spaced from adjacent shields in at least two directions by devices which maintain a minimum neutron, attenuation distance dependent on the fissile enrichment of the elements. Neutrons emitted by the elements are moderated and trapped by hydrogenous moderator between the shields. Apparatus is used for storing new or spent nuclear fuel assemblies in a pool. Maximum storage density can be achieved for given elements consistent with sub-critical geometry and seismic safety.
Patent DE-2704893-A1 (DE)
Title: Air-entraining agent for hydraulic cement compsn. - contg. one or more organic esters of phosphoric acid
Inventor: YAMADA SENRI
IPC: C04B24/00
Filed: 1977-02-05
Abstract: The new air-entraining agent contains one or more organic esters of phosphoric acid, of general formula (R1)(R2)(R3)P==O) (where R1 is R4-O-(CH2CH2O)n-(R4 is 4-18C alkyl or alkenyl or aryl sulste. with 4-18C alkyl; n is integer 1-15; R2,R3: hydroxy or R4-O-(CH2CH2O)n-). The agent is usually used at 0.0001-2% on cement. The hydraulic cement compsn. contg. this agent entrains a fixed amt. of air, and this amt. is not affected by water/cement ratio, or by how much cement is replaced by flyash. Slump value of concrete is also not affected.
Patent DE-2708376-A1 (DE)
Title: Curtain track with silent guide system - has curtain holders formed by housings with slide face fitting into guide track
Inventor: ANDERSEN KLAUS
IPC: A47H13/10
Filed: 1977-02-26
Abstract: The track with a silent glide system e.g. for curtains is provided with runners (5) which move along the inside of the track and support holders (3) for the curtains. Each holder is designed as a housing (6) which projects beyond the horizontal bearing faces for the runners (5) so that the latter can be rotatably mounted. The housing has a slide face supported on the underneath (8) of the bearing face (2) which faces the curtains. This slide face can be formed by the surface of a support roller (12) rotatably mounted in the housing and which bears on the underneath (8) of support bearing surface. The housing cannot cant relative to the runners sice the latter are firmly guided in the housing on bearing pins. The slide face in the housing ensures that the latter slides smoothly over the underneath of the bearing.
Patent DE-2734624-A1 (DE)
Title: Stereophonic headphones with acoustic delay lines - have tubes of different lengths interconnecting interiors of earphones
Inventor: HEHEMANN GUENTER
IPC: H04R1/10
Filed: 1977-08-01
Abstract: The cavities of the two earphones are interconnected by two tubes (3, 4) of different lengths, the longer of which is preferably of labyrinth or spiral form. The longer tube may have two diaphragms which provide a central length of tube, which is filled with a gas in which the velocity of sound is lower than in air, e.g. carbon dioxide. The ends of the tubes may terminate in the cavities, or the ends of one or both tuber may terminate in the cushions of the earphones or extend through the cushions. The sound quality at each earphone is modified by a delayed resonance or echo effect received via the tubes from the other earphone.
Patent DE-2734937-A1 (DE)
Title: Hand tensioning tool for aircraft control cables - uses pawl and ratchet mechanism with cam to release tension
Inventor: KOZAKIEWICZ HUGO
IPC: F16G11/12
Filed: 1977-08-03
Abstract: Tool consists of a rectangular block (1) with a handle (2) and a lug (13). The lug (13) has a hole for a pivot pin for the lever (4). An L shaped slide (8) with ratchet teeth (18) on its undersurface slides in a slot in the block (1). The ends of the cable are attached to the lug (13) and to the lug (12) on the slide (8). A lever (3) is pivoted to the body (1) and carries a pawl (28) which engages the ratchet teeth (18) so that an oscillating motion of the lever (3) increases the cable tension. The tension can be released by rotating the cam (78) which releases the second pawl (50) by means of the small lever (62) and spring (72).
Patent DE-2739820-A1 (DE)
Title: Direction control circuit for slide projector - uses reverse signal generated by bistable switching circuit
Inventor: EISERT JUERGEN
IPC: G03B23/00
Filed: 1977-09-03
Abstract: The slide projector has the direction of slide changing, i.e. magazine indexing, controlled by the length of the control pulses on the operating electro-magnet. The reverse pulses are longer and are generated by a bistable switching circuit after the reverse switch has been pressed. The system eliminates any special circuits and uses the same electro magnet for both directions. The forward and reverse switches need only be pressed briefly. A npn transistor(50) has its collector connected to the release magnet(5) and its emitter to the negative lead(13) of the power supply.
Patent DE-2742541-A1 (DE)
Inventor: HARDT PETER DIPL CHEM DR
IPC: C07D213/57
Filed: 1977-09-21
Abstract: Process for the catalytic preparation of  beta -substituted 2-ethylpyridines from the corresponding  beta -cyanoethyl compounds of amines and alcohols and acetylene at conversion rates of at least 90%, in high yields and high selectivity, in the presence of cobaltocene.
Patent DE-2742998-A1 (DE)
Inventor: BRAND HERMANN
IPC: E06B3/26
Filed: 1977-09-22
Abstract: The plastic profile bars for an outer and an inner frame (1, 2) are connected to one another releasably by means of extruded strips (8, 10) and are secured against displacement in longitudinal directions. The profile bars are then cut to size with a mitre and are welded to one another. The weld material of the strips (8, 10) is subsequently cut out in the area of the mitre, and the means securing against slipping are removed. The two frames (1, 2) joined together by means of hinges can be swivelled open, for example for the purpose of cleaning the inner surface of the window panes. The method ensures an exact matching of the inner and outer frame (1, 2) without it being necessary for the two frames (1, 2) to be cut separate all round. <IMAGE>
Patent DE-2747050-A1 (DE)
Title: Gambling game checking mask - is printed with pattern of removable areas corresponding to squares on game card
Inventor: BROENIMANN PAUL
IPC: A63F3/06
Filed: 1977-10-20
Abstract: The mask is used for checking lotto cards (C1-C6) and comprises a plate (a) of similar configuration to the latter. It has a pattern of removable area (g1...g49), which correspond to the playing squares on the cards (C1---C6). The removable areas (g1---g49) may be defined by corresponding depressions in the surface of the plate (a) the base of each depression able to be fractured. Rupture lines may be defined around the base of each depression. Alternatively, each removable area (g1---g49) may be formed by a disc within a rectangular aperture in the plate (a) and joined to it by two thin bridging sections, which can be broken to allow removal of the disc.
Patent DE-2747582-A1 (DE)
Title: Evaporation of liquids in multi-effect system - having two or more effects at different pressures with vapour transfer between effects
Inventor: SAARI RISTO DIPL ING
IPC: B01D3/06
Filed: 1977-10-24
Abstract: Evapn. system for liquids uses >=2 effects operating at different temp. levels. Vapour from one is then used to heat liquid in the next. The liquid is evaporated in >=1 of the effects and is condensed in >=2 evapn. stages. The liquid being evaporated in one effect is recycled through the condensn. stage of the next effect which is operating at a higher pressure. In this way the liquor from the previous effect acts as the condenser coolant in the next. Used esp. for evaporating sea water or effluent streams. Uses smaller equipment and is less susceptible to fouling than conventional multi-effect and vertical tube evaporators.
Patent DE-2749733-A1 (DE)
Title: Tin di:oxide etching chamber - with etchant atomising nozzles to dissolve zinc powder and spray nozzles to etch metallic tin
Inventor: PEETERMANS ANDRE DIPL CHEM
IPC: C09K13/04
Filed: 1977-11-07
Abstract: Thin tin dioxide layers, for use in formed transparent electrodes to produce luminous symbol displays, are etched by wetting in a first zone the substrate, covered with an aqueous zinc powder paste, by a metered supply of hydrochloric acid to keep the hydrogen release and the tin oxide reduction uniform. In a second zone, a copious supply of hydrochloric acid removed the zinc powder residue and cuts short the reduction. This is a simple process to etch the difficult tin dioxide layers and to reduce under-etching to a minimum under optimum conditions.
Patent DE-2754493-A1 (DE)
Title: 2,4-Oxaza-bi:cyclo-heptan-3-one derivs. - intermediates for 2-amino-cyclo:butanol cpds. used e.g. as pharmaceutical intermediates etc.
Inventor: SCHOLZ KARL-HEINZ DR
IPC: C07D263/52
Filed: 1977-12-07
Abstract: Bicycloheptanone derivs. of formula (I) are new. (R1 to R4 = H, opt. substd. alkyl, alkenyl, alkoxy, aryloxy, aralkoxy, CN, acyloxy or halo; or R1 + R2 and/or R3 + R4 or R1 + R3 and/or R2 + R4 together form a 1-12C ring. Alternatively R1 + R2 and/or R3 + R4 = CH2 opt. substd. by a 1-4C alkyl. R5 and R7 = H or opt. substd. alkyl. R6 = H, lower alkyl, acyl or alkoxycarbonyl). Also new are cyclobutanols of formula (IV): (IV) are intermediates for cpds. with potential biological activity and for new heterocyclic systems. Oxazolidin-2-ones are useful e.g. in textile finishing as emulsifiers corrosion inhibitors and fire-proofing agents, as intermediates for pharmaceuticals (e.g. antidiabetics), and some oare also pesticide (I) are intermediates, by alkaline hydrolysis, for (IV).
Patent DE-2800679-A1 (DE)
Title: Machine for pretreating plastic tape or strip - used in decorative article mfr. e.g. tinsel, has pair of intermeshing grooved rollers between which tape is twisted
Inventor: RODERMUND GERD
IPC: B29C59/04
Filed: 1978-01-09
Abstract: Machine for pre-treating plastics tapes or strips used in mfr. of decorative articles e.g. tinsel, buntings, garlands, comprises a pair of driven rollers, with circumferential grooves. The rollers are axially parallel and mesh so that they form a zigzag nip through which the tapes or strips pass. The grooves have triangular cross-section. The prod. has pleasing appearance achieved with relatively low consumption of film material. The surface of the prod. is effectively structured and has enhanced reflectivity. Unplasticised PVC or polyethylene is suitable plastics. The tape may be metallised.
Patent DE-2802840-A1 (DE)
Title: Vitreous enamel with high resistance to corrosion - for steel reactors, pipes or heat exchangers, contains silica, titania, zirconia, calcium fluoride, sodium oxide and lithium oxide
Inventor: KHODSKY LEV GEORGIEVICH
IPC: C03C8/06
Filed: 1978-01-23
Abstract: The enamel contains by wt. 62.17-72.29% SiO2, 0.2-9.54% TiO2, 0.5-9.9% ZrO2, 2.4-6.6% CaF2, 0.3-5.06% Li2O, and 10.48-19.05% Na2O. The compsn. pref. contains 68% SiO2, 3.23% TiO2, 4.95% ZrO2, 6.32% CaF2, 2.5% Li2O and 15% Na2O. The enamel may also contain 0.5-2% Cr2O3 or Co2O3, to obtain a green or blue shade. The enamel resists corrosive media, acids and alkalies, but contains neither expensive nor toxic materials. The enamel is free from continuous pores.
Patent DE-2807064-A1 (DE)
Title: Folding child's seat for car rear seat - has squab and back sections hinged to lift into extended setting
Inventor: BAUER ANDREAS
IPC: B60N2/30
Filed: 1978-02-18
Abstract: The rear seat has a section of the squab which can be lifted to form a raised seat (21), while at the same time a corresponding section of the seat back (22) is lifted proud of the main seat back. This forms a raised seat for a small child, with the same seat belts as for normal passengers on the rear seats. The two padded sections are lifted out of the line of the rear seat on parallel sets of levers and are stabilised in the extended position. The headrest can be tilted for additional support.
Patent DE-2817732-A1 (DE)
Title: Brick loading and unloading installation - has multi-storey transport frame with elevator fitted with drivers and storage frame
IPC: B65G49/08
Filed: 1978-04-22
Abstract: The automatic loading and unloading appts. is used with a multi storey storage or transport frame used for the transport of bricks. Several bricks are positioned next to each other on a transport base such as slats with an elevator which has a number of drivers guided on endless chains running parallel to each other over reversing wheels and making contact close to the ends of the transport bases. A roller track extends at right angles to the drivers on which the transport bases carrying the bricks are moved to and from the elevator. Finally a storage from has storage floors arranged in several storeys at a distance in height corresponding to that of the drivers. This can be moved into the conveyor area of the elevator.
Patent DE-2819408-A1 (DE)
Title: Net for catching flying sports objects, e.g. discus - pref. made of tough polyamide and suspended from shock absorbers fixed to supporting frame
Inventor: HORNUNG WOLFGANG DR
IPC: A63B71/02
Filed: 1978-05-03
Abstract: Device for catching and/or intercepting thrown objects in flight such as sports articles, e.g. thrown hammers, discuses or the like, comprises a net fastened to a load-bearing structure at an angle to the direction of flight. The net is suspended from springy shock-absorbers, so-called spring legs, fastened to the load-bearing structure. These springlegs are critically dampened and have a resilient head portion, e.g. of rubber, via which they are fixed to the structure. The net is made of a material with high modulus of elasticity and high tensile yield, suitably a polyamide.
Patent DE-2822366-A1 (DE)
Title: Ski boot sole attachment for walking - consists of tread surface with corrugated strips clipped to heel and toe
Inventor: JUNKER REINHOLD ING GRAD
IPC: A43B5/04
Filed: 1978-05-23
Abstract: The sole attachment for a ski shoe, enabling the wearer to walk comfortably using the shoe for walking, has a tread surface which is curved in the lengthwise direction. The thickest part of the tread surface is under the ball of the foot. The sole attachment is detachably fixed to the toe at the top edge and at the heel, by hooks. The hook gripping the heel is preferably a clip, with guide pieces on each side, made from a thin plate let into the tread side of the sole attachment. At least part of the plate can be moved in a lengthwise direction. The front and heel part of the plate is divided. The tread surface consists of at least three longitudinal corrugated strips.