baber/WOPTO huggingface dataset:
Patent DE-2431504-A1 (DE)
Title: Drive for bucket chain of an excavator - has system for releasing the bucket chain from the jammed position
IPC: H02P7/293
Filed: 1974-07-01
Abstract: The bucket chain is driven by an electric motor and via a flexible coupling. When the bucket chain in the diagram becomes jammed, then the sensor of the control system activates a function generator and this control system varies the power supply to the electric motor which may be driven wit periodically changing torque. This torque may vary as a saw tooth curve between zero and the maximum value and hence the bucket chain is rocked free and the jamming effect is automatically eliminated within a relatively short time. The signal period of the function generator can be adjusted. The excavator has a direct current motor which drives the chain via gear drive and a flexible rubber coupling. The armature of this motor is fed from a three phase power mains via a rectifier provided with thyristors and the motor has a speed regulating system.
Patent DE-2433669-A1 (DE)
Title: Press-stud type fixing for large roof sheets - esp. for polyamide or polypropylene with central expanding plug to lock
Inventor: OTT WILLIBALD ING GRAD
IPC: E04D5/14
Filed: 1974-07-12
Abstract: A fixing device for a loose-laid roof-sheet, esp. for roofs of large area, comprises lower and upper components the lower component beneath the roof sheeting is secured to the roof and is generally conical in shape, with a basin-shaped central recess formed as a continuation of the central passage for the fixing screw; this recess has undercut sides, an the upper component of the fixing has a corresp. mushroom-shaped downward projection on its underside which can be forced into this recess, the roof sheet being between the upper and lower components, and thus firmly held in place. The upper component may have a central passage through it, into which a screw or similar insertion is later fitted to expand the mushroom head outwards and lock the upper component into the lower component. Used esp. for large areas of roofing, where gluing into posn. of the sheet is not possible. The fixing is simple, does not excessively distort the sheet and is economic.
Patent DE-2438743-A1 (DE)
Title: Room-ceiling plaster panel mounting equipment - uses roller-fitted frame brakes guide-rod and work bench, assembled on site
Inventor: DADT LOTHAR
IPC: E04F21/18
Filed: 1974-08-13
Abstract: The apparatus is designed to simplify the work and reduce the labour force required, in installing plaster panels in place, esp. in the ceilings of rooms, and it consists of a frame equipped with rollers, which can be braked, a guiding rod fitted with a tooth pitch and a guideway groove, and a working bench or platform, the whole being assembled at the place of work. Dismantling into separate components makes transport easier, and assembly can be rapidly effected, using a few simple hand tools. With the brakes applied, a panel is set up at an angle and thrust onto the platform: brakes are released, and the panel is moved into place: the platform is raised, to press the panel to the ceiling, where it is easily screwed or nailed.
Patent DE-2439628-A1 (DE)
Title: Domestic washing machine with rotary drum - allowing rotation of drum after reaching a min water level during filling
Inventor: SARANTIS BASIL P
IPC: D06F33/34
Filed: 1974-08-19
Abstract: Domestic washing machine, in which the drum may be rotated during filling, in which case more water enters than if the drum were stationary, comprises a pressure-sensitive switch assembly for sensing water level in the drum, a water inlet valve controlled by the switch assembly, and a motor dor driving the drum. The switch assembly comprises two parallel-connected switches, responsive to different pressures, both switches in one position moving the inlet valve in its open position. The low pressure-sensitive switch switches on the motor in its other position into which it moves on reaching min. water level; the high pressure-sensitive switch, when in its second position which it reaches at max. water level, together with the first switch in its second position moves the valve into the closed position.
Patent DE-2442129-A1 (DE)
Title: Grinding machine for removing plastic weld beads - with endless grinding belts running in lengthwise direction of beads
IPC: B24B21/04
Filed: 1974-09-03
Abstract: Belt grinding machine for removing the weld beads from plastic window-frames has the running direction of the endless grinding belts (24) over rollers (21,22) corresponding to the lengthwise direction of the beads.
Patent DE-2449751-A1 (DE)
Title: Isodose curve determination for therapeutic tissue irradiation for gamma electron or X-rays involves X-ray analyser computations using cross section
Inventor: BAGGE ERICH PROF DR
IPC: A61N5/10
Filed: 1974-10-19
Abstract: An analyser used to determine the distribution matrix of the local X-ray absorption, whereby the precisely calculated density of electrons resulting from the local X-ray absorption is used to calculate the isodose curves or surfaces in the tissue to be irradiated so that the correct radiation dose can be administered without being to great to destroy surrounding healthy tissue or too little to be effective. Pref. the distribution matrix can be determined using the energy dependent effective collision cross section formula of Klein-Nishina. The isodose curves relating to the absorption and scatter cross section of the analyser X-rays can be directly related to the effective cross section of the X-ray and gamma rays of the therapy apparatus.
Patent DE-2503643-A1 (DE)
Title: Quadratic bar for construction of support frames - has longitudinal slots for the location of cladding material
Inventor: TRABER FRITZ
IPC: E04B1/344
Filed: 1975-01-29
Abstract: A self supporting quadratic clamp bar (1) for the construction of mounting frames has longitudinal dove tail slots (2) along the centre line of each of its sides. To fix cloth, plastic foil or similar material (4) to a frame built from these bars, a round rod (3) is inserted in the slots. Since the foil (4) is wrapped around the rod (3) prior to its installation, it is clamped inside the slotted bar. The arrangement is esp. for providing coverings for furniture etc., using paper, foil or other thin sheet material. The frames are of a hard rubber.
Patent DE-2506149-A1 (DE)
Title: Yeast proteins prodn from waste sulphite liquor - made by fermenting a liquor contg standardised assimilable materials
Inventor: MOSTECKY JIRI PROF DR
IPC: C12N1/32
Filed: 1975-02-14
Abstract: Yeast proteins are produced from sulphite waste liquors and spirit slops by increasing the amt. of assimilable carbonaceous substances in the raw sulphite material to =10 wt. % by the addn. of ethanol and conducting the fermentation with an inoculum which has been pre-cultured in ethanol. The process overcomes previous difficulties esp. those connected with variations in the compsn. of the substrate and the necessity of undergoing biological effluent purification. The proteins obtd. have lower ash content.
Patent DE-2509247-A1 (DE)
Title: V-belt driven foundation consolidating vibrator machine - with vibrators alternately driven by double centrifugal clutch switchgear below cover plate
Inventor: DUEPMEIER WILHELM
IPC: E02D3/046
Filed: 1975-03-04
Abstract: The vibrator machine, with two or more vibrators, with combustion or electric motor power, and V-belt or similar drive for its switchgear, is as used in the building industry for consolidating sand, ballast or other base, with movements backwards and forwards. Here a switchgear assembly with double centrifugal clutch is mounted on the underside of the cover plate (3), and by this means one or other of the vibrators (16, 17) is alternately driven. The switchgear assembly may protrude into the hollow space in the vibrator trough (5). The axis interval variations generated by the oscillations are removed or reduced by the horizontal setting of the V-belt drive, and no significant length variations are generated: the V-belts are more durable, and the motor on top is more accessible, with more room available for its mounting, while the switchgear is protected from dirt and rough handling.
Patent DE-2516286-A1 (DE)
Title: Adsorbent panel for cryopump - having adsorbent material embedded in bonding agent and surface cut to expose adsorbent
Inventor: BAECHLER WERNER DIPL PHYS
IPC: F04B37/08
Filed: 1975-04-14
Abstract: An adsorption panel is mfd. by embedding an absorbent in a bonding agent on a metal cooling panel. Once the bonding agent has set, the surface of the panel is cut off, e.g. means of sandblasting, cutting, milling or turning on a lathe. The bonding agent may be solder, "araldite" (RTM) or other similar adhesive. The cooling surface should be of Al or Cu and have a depression formed in it capable of accepting the adsorbent. The panels are used with cryopumps, cold traps, etc., where gases are adsorbed at very low temps. onto adsorbents such as mol. sieves, activated carbon etc. The method cuts off the upper layer of bonding agent to expose a clean surface of adsorbent below. This then becomes an effectively cooled adsorbent panel.
Patent DE-2518198-A1 (DE)
Title: Hydraulic variable purpose swimming pool raisable floor - made in two parts, including connecting slab between base slab and main base
Inventor: SCHIRON KLAUS
IPC: E04H4/06
Filed: 1975-04-24
Abstract: The raisable bottom, operated by hydraulic cylinders is for a swimming-pool, esp. one with a wave effect, which may also be needed for training sessions or competitive racing. The raisable bottom (3) is made in two parts, consisting altogether of a height-adjustable base slab (31) which can be inclined, and a connecting slab (41) forming the connection between the base slab and the main bottom (12) of the pool (1). This connecting slab is mounted so as to be swivelable and/or displaceable on base slab and the main bottom have slitted holes in it. The hydraulic cylinders (21, 22) may form swivel bearings between the base slab and the pool bottom. The pool can be readily converted from one use to the other, and depth can be easily increased.
Patent DE-2518924-A1 (DE)
Title: Document binding appts. with needle drive - has binding thread spool located on working table fitted with cutter
Inventor: MARKSMANN HERBERT
IPC: B42B2/04
Filed: 1975-04-29
Abstract: Method of binding documents, items of correspondence etc. uses a needle, a needle drive installation, a binding thread spool and a working table. The working table (1) has a guide groove for the binding thread (4) which is positioned in the path of the needle (3). The needle is a machine type hook needle with the stroke of the needle measured to produce a suitably large loop for the threading of the thread end. A cutter is fitted above the hook on the needle. A hole is provided within the area of the needle path in the plate of the working table with its diameter wider than the binding thread guide groove (4).
Patent DE-2523418-A1 (DE)
Title: Deep penetration eddy current crack detector - has field extended by supplementary permanent magnet
Inventor: DRECHSLER GUIDO
IPC: G01B7/24
Filed: 1975-05-27
Abstract: A method for detecting cracks and arts of reduced wall thickness in nonferrous metallic workpieces, especially at some depth below the only accessible surface, which normal known methods cannot detect because of inadequate penetration by the lines of force of an eddy current probe. A measuring probe in two similar parts (3) has its primary windings connected in series and fed from an oscillator (5). The secondary windings on the same cores (4) are connected in push-pull to a differential amplifier (1). The probes are surrounded by a number of annular permanent or electro-magnets (6) with polarities such that the field has to penetrate deeply into the surface to which the probe is applied.
Patent DE-2535638-A1 (DE)
Inventor: HUOT MARCHAND DANIEL
IPC: G04B27/04
Filed: 1975-08-09
Abstract: 1515147 Calendar watches FRANCE EBAUCHES SA 8 Aug 1975 [27 Aug 1974]  33190/75 Heading G3T In a calendar watch having a stem 8 axially movable between (A) winding, (B) calendar correcting and (C) time setting positions, and a clutch wheel 3 movable on the stem by means of a first rocker 21 so that the clutch wheel meshes in position (A) with a winding pinion 18 and in positions (B) and (C) with an intermediate wheel 2 mounted on a second rocker 1, the three positions of stem and clutch wheel being determined by a pull-out piece 17 with a pin 5 which co-operates with a notched check spring 23, the second rocker I is freely mounted and its positions are determined by its head profile 19 which co-operates with the pin 5 on the pull-out piece, and the arrangement is such that in positions (A) and (B) the intermediate wheel 2 and second rocker 1 occupy identical forward positions, and are retracted, to bring the intermediate wheel into mesh with the motion work, only when the stem is pulled out to position (C). Thus, in position (B) shown, the intermediate wheel couples the clutch wheel 3 to a calendar correction wheel 6; rocker 1 is omitted from Fig. 3 for clarity. Clockwise rotation of the stem then causes advance of wheels 11-13 and thus of a day disc 14, while anti-clockwise rotation displaces the wheel 6 in slot 10 for correction of a date ring 9. In position (C), the wheels 2, 3 remain in mesh but the wheel 2 then meshes with wheel 4 of the motion work, Figs. 6, 7, (not shown).
Patent DE-2547957-A1 (DE)
Title: Typing error correcting unit for electric typewriter - has correcting ribbon guide levers fixed to spool supports pivoting on rocker beam arms
Inventor: KIELING REINER
IPC: B41J29/36
Filed: 1975-10-27
Abstract: The typing error correcting unit for electric typewriters or similar office machines is designed so that the correcting ribbon can be rapidly fitted in place without coming into contact with other parts of the equipment. The guide levers (8, 10) for the correcting ribbon are located rigidly on the spool supports (1, 5) which are pivotably mounted on the arms (9, 11) of a rocker beam (19) running parallel to the platen. The spool supports are used to raise the correcting ribbon in front of the typing position and controlled using integral guide pins (31, 33) which engage in frame-fixed guide slits. The spool supports and the rocker beam are acted upon both through the lift gear and also through a hand-operated swivel lever.
Patent DE-2548285-A1 (DE)
IPC: A23L11/30
Filed: 1975-10-29
Abstract: In order not to subject the fed starting materials to a continuous moistening, or to subject them only to a slight continuous moistening, which would make post-drying necessary with the extruded material, the extruder has two driven contra-rotating conical conveyor screws (3, 4), which mesh together and have a cone angle between 1 DEG  and 5 DEG  and are arranged in a smooth-walled heatable barrel (1). Although water is added to the starting materials during start-up of the extruder, the water addition is then reduced. <IMAGE>
Patent DE-2549363-A1 (DE)
Title: Reflection compensator for antenna waveguide - uses discontinuity in waveguide at specified spacing from radiating end
Inventor: DOMBEK KARL-PETER DR ING
IPC: H01Q13/24
Filed: 1975-11-04
Abstract: The reflection compensator is mounted at the end of a directly radiating waveguide, or one used for excitation of a longitudinal radiator. The compensator has small transverse dimension in relation to the free space wave length. The waveguide has an axial spacing (1) of 0.1 to 0.4 of the waveguide wavelength from its radiating end (a) at least one discontinuity (3, s) in its cross section. The discontinuity actuates an energy portion in counter phase to the respected reflection. It is in the form of a transverse slit (3) and/or discontinuous transition (s) to a different inside width (d) of the waveguide. Preferably the cross section of the discontinuities of the waveguide is mathematically similar in its end region.
Patent DE-2551246-A1 (DE)
Title: Concrete beam framework casting form - with spaced element rows leaving elongated opening for tapering U-sectioned beam
Inventor: SANDQVIST SUNE ALLAN
IPC: E04G13/04
Filed: 1975-11-14
Abstract: The process is esp. suitable for the casting of a concrete beam framework with downwards protruding beams, in hous construction, and comprises the erection and support of a number of flat formwork elements, arranged in parallel rows and forming the base of the formwork. The form elements (10) are arranged in two or more rows, with a spacing left so as to produce an elongated opening between rows. Elongated beam forms, of U-shaped cross-section, are fitted between one lengthways edge on one side of the opening and the second longitudinal edge on the other, resulting in a diminishing thickness of the concrete beam framework when this is cast. The U-sectioned framework (17) has projecting flanges (18, 19) at its open edges, extending away from it, for fixing it in place.
Patent DE-2552605-A1 (DE)
Title: Six cylinder diesel engine - uses two cylinders as air compressors to charge storage tank
Inventor: ELSBETT LUDWIG ING GRAD
IPC: F02G5/04
Filed: 1975-11-24
Abstract: A diesel engine is designed as an inline six cylinder unit, the two centre cylinders (4, 5) being simply used as axial compressors. The exhaust pipes from the remaining cylinder (2, 3, 6, 7) are surrounded by a heat exchange unit (12). The exhaust gases turn a turbine (13) to which a compressor (18) is connected to provide the combustion air. Compressed air from the first compression cylinder is fed by a pipe (14) to the heat exchanger (12) and back to the second compression cylinder (5). The compressed and heated air expands in the second cylinder to contribute energy to the main crank-shaft. The exhaust (19) air is fed to the exhaust driven turbine (13). A pressure storage tank (10) is connected to the second compression cylinder by a feed pipe (20). The storage tank is connected via a pressure reduction valve (11) with the heat exchanger. Pressure from the storage tank can be used for starting and propulsion purposes.
Patent DE-2556821-A1 (DE)
Title: Fine grinding of cellulose and its derivs. contg. ether gps. - in the presence of water and air
Inventor: EICHENSEER FRANZ DR
IPC: C08J3/12
Filed: 1975-12-17
Abstract: A further development of the process for fine grinding of cellulose or its derivs. with ether gps. such as alkylhydroxyalkylcelluloses in a vibratory mill. A deriv. having up to 3C atoms in the hydroxyalkyl residue is ground in the presence of H2O, which may be in the raw material or added later, and air. the process is continued until the particle size does not exceed 100 mu and the residual moisture content is 2-10 wt. % (as in DT 2458998). The deriv. used is now specifically hydroxyalkylcellulose. Prod. is used as binder in the building industry, e.g. as additives to mortar, cement etc, as filler for plastics, as additives to decorative cork materials etc.
Patent DE-2613895-A1 (DE)
Title: FET data storage element with low driving voltages - uses overlapped gate electrodes and depends on avalanche effects in telephone exchanges
Inventor: MUELLER RUDOLF DR
IPC: G11C16/10
Filed: 1976-03-31
Abstract: A field effect n-channel storage element is typically for use in storage units in telephone exchanges, it depends on avalanche or alternatively tunnelling effects and requires only low writing and erasing voltages. A source (S) and drain (D) both of N type semiconductor are grown in a P type substrate (P) and two gate electrodes (G1, G2) and an auxiliary layer (LK) divided into two parts (K1, K2) and separated by oxide layers of various thicknesses, are deposited on this. The device depends for its storage operation on avalanche or alternatively on Fowler Nordheim type tunnelling across the oxide layers between the slightly overlapped (L) electrodes.
Patent DE-2614235-A1 (DE)
Title: Filter bag set with holder - has open sides of holder enclosing flat folded bags positioned with top edges alternatively facing bottom edges
Inventor: FRANKE WERNER
IPC: B65D85/62
Filed: 1976-04-02
Abstract: A filter bag set consists of a predetermined number of filter bags of identical size. The filter bags are folded flat and are held together by a holder to form a unit. The flat folded filter bags form a straight base edge and two side edges projecting outwards from the base edge and a circular curved top edge. The filter bags (1) are placed on top of each other so that their base edges (2) are alternatively positioned opposite their circular curved top edges (3). The holder (9, 10, 11) is enclosing the filter bag unit over its side surfaces formed by the base edges (2) and top edges (3) positioned alternatively on top of each other. The side surfaces of the filter bags are accessable through open sides of the holder.
Patent DE-2614538-A1 (DE)
Title: Resealable wine bottle stopper - has cylindrical portion with male thread fitting inside neck of bottle
Inventor: WATSON WILLIAM BRUCE
IPC: B65D51/16
Filed: 1976-04-03
Abstract: The bottle stopper is esp. for wine bottles, and has a thread and a unit to release gas from the bottle. The stopper consists of a cap (12) with a base (14) and an integral cylindrical section (18). The external diameter of the cylinder section is smaller than the internal diameter of an edge (16) on the base, and the longitudinal axis of cylinder and edge co-incide. A space is formed between edge and cylinder. The external diameter of the cylinder is smaller than the bottle opening. The inside of the edge has a thread (26) which may be screwed onto a collar or an external thread on the bottle neck. The stopper (10) seals the bottle via sealing ribs (34) or rings. The cylinder has recesses to act as gas compensation apertures.
Patent DE-2618395-A1 (DE)
Title: Pure tellurium dioxide prodn. from granular tellurium - by oxidn. with conc. sulphuric acid, dissolution in alkali and pptn.
Inventor: WIESE ULRICH DR
IPC: C01B19/00
Filed: 1976-04-27
Abstract: Prodn. of chemically pure Te dioxide (I) by oxidn. of metallic Te (of commercial quality) is achieved by adding Te with a particle size of >1 mm, pref. 2-5 mm, to pure conc. sulphuric acid (II) at a temp. >=100 degrees C and up to the b.pt., pref. 180-200 degrees C. When the reaction is complete, the supernatant liq. is decanted well from the white crystal slurry of basic Te sulphate, which, without further purificn., is added to sufficient caustic alkali, pref. NaOH soln. to convert it to alkali tellurite, with simultaneous dissoln. The soln. is filtered, then the filtrate is diluted with an equal vol. of precipitant, pref. water. (I), which is pptd. quantitatively, is washed with distilled water, filtered and dried. In an example, 99.9% pure Te(0.04% Se) of particles size 1-3 mm was heated with (II) at 200 degrees C, cooled, decanted, dissolved in 20% NaOH soln., treated with water, washed and dried. Pure (I) (under 0.01% SO24-; no detectable Se) was obtd. in 97% yield. (I) is used in the prodn. of telluride semiconductors, Cd tellurite for utilisation of solar energy and selective light transmission and in tellurite for heat-sensitive semiconductor resistors with negative temp. coeffts. It is not necessary to use very fine Te powder, so that the formation of vapour or dust contg. Te is suppressed.
Patent DE-2627383-A1 (DE)
Title: Watering device for animals - has hose immersed in container at one end and formed with suction tap at other end
Inventor: HINTERKOPF GEB BAUR GISELA
IPC: A01K9/00
Filed: 1976-06-18
Abstract: The watering device for calves has a hose which can be clipped into a container at one end, while at the other end there is a suction tap with a suction hole. The tap is fixed to the hose with a connecting device which has a hollow connecting body with a flange and a retaining nut. There is a non return valve between the tap and the hose end. The hose n1) is passed through the connecting body (9) and is fixed by means of an internal spreader brush (10). A holding plate (16) is arranged between the connecting body and the retaining nut (13) for releasably fitting the tap (11). The non-return valve (2) is arranged at the end of the hose away from the tap.