baber/WOPTO huggingface dataset:
Patent DE-2501175-A1 (DE)
Title: Carbon manganese steel pit props. - which are heated to form austenite and subjected to controlled cooling to obtain very high toughness
Inventor: SEEK HANS
IPC: C21D1/667
Filed: 1975-01-14
Abstract: Profiled steel sections employed as supports or pit props in underground mine workings, the props possessing high bending strength and resistance to brittle fracture are made of fine-grained steel contg. 0.28-0.4% C, 0.15-0.45% Si, 0.65-1.0% Mn, 0.3% max. Cr + Ni, 0.08% max. P, 0.05% max. S. The props are heated above the Ac3 point of the Fe-C diagram, in a continuous furnace, and fed through water jets for quenching on all sides. The props are directly fed at a constant speed from the furnace through the jets for high speed quenching to a middle or upper intermediate temp. and then allowed to cool mildly in air for complete structural transformation followed by final cooling using air, water, jets, or a bath. A controlled cooling process w.rt. the time-temp.-transformation diagram for the steel results in high toughness by transformation above the Ms point.
Patent DE-2508649-A1 (DE)
Title: Portable frame with castors for photographic copiers - enables uneven floors to be negotiated and absorbs impacts
Inventor: BARTEL SIEGFRIED DIPL ING
IPC: G03B27/52
Filed: 1975-02-28
Abstract: The castors (2) are mounted on two or more rigid frames (7b) connected to the bottom (4) of the copier by a number of spring elements (3). A further frame (6b) is preferably fixed to the bottom of the copier and has vertical surfaces extending below the copier. The spring elements are preferably attached between the vertical surfaces of the latter frame (6b). Load variations and preferred directions of vibration can be compensated for by varying the numbers of spring elements fitted between the frames or by inclining the vertical frame surfaces. The spring elements are preferably rubber/metal blocks of strips.
Patent DE-2511507-A1 (DE)
Title: Coupling for electric motor fan - has disc shaped holding element with profiled centre slots and spring support
Inventor: SCHMIDT GERHARD
IPC: F04D29/26
Filed: 1975-03-15
Abstract: The design can be fixed on the shaft from the far end, on fan discs for electric motors. The holding element is a flat disc (9) that locates on the hub. The free end of the motor shaft has the fun wheel with vanes on the hub. The disc (9) consists of two parts, one locating centrally on the shaft and the other being off centre, and these locate together in a slot on the shaft. A spring plate keeps the holding element in position and the serrated surface of the hub is made from plastic and is pressed onto the disc. An axially sprung element fits between the holding disc and the bearing bracket.
Patent DE-2512781-A1 (DE)
Title: Filter candle - with helical wire winding on parallel spaced rods acting as support for filter cloth
Inventor: FRIEDRICHS DIETER
IPC: B01D29/11
Filed: 1975-03-22
Abstract: In a filter candle with a cylindrical support body surrounded by a filter cloth, a support at one end for the filtrate outlet and a cover fitted to and closing the other end, the support body is composed of (i) >=5 rods mounted uniformly round the circumference of a circle and parallel to the axis of the filter candle, and (ii) >=1 wire wound round the rods with constant pitch and bonded to them at points of crossing. The support body construction ensures that 10% of the area of the filter cloth or sieve is made ineffective by covering the pore structure, so that for a given area of filter medium a greater throughout is secured. The support body is cheap to manufacture.
Patent DE-2517649-A1 (DE)
Title: Corner stiffening components for window frame - are oblong plates attached to mitred corner of U-section rectangular beams
Inventor: THOMAS JOHANNUS JOZEFUS HUBERT
IPC: E06B3/988
Filed: 1975-04-22
Abstract: The corner construction consists of two rectangular section metal components with right-angled corners to the section, the components themselves forming a mitre-joint. The inside faces of the mitre joint are stiffened by the attachment of two plates, one of which is a flat oblong (21) and the other a similar oblong with a cutout section (16) to receive the end of the other stiffener. The main sections are substantially U-shaped, with a shelf section (6) less deep than the main portion (5). The open portion of the U-section has two narrow flanges which turn inwards.
Patent DE-2518674-A1 (DE)
Title: Rainwater collection storage and delivery system - has water permeating through absorbent layer to bag with delivery pipe
Inventor: SCHLEICH JOSEF DIPL ING
IPC: E03B3/02
Filed: 1975-04-26
Abstract: The rainwater collection, storage and utilisation system is used in underground construction work and for drinking water. The rain water seepage is controlled by providing a ground surface layer (2) for absorbing rainwater. The seeping water is drained through this open permeable layer into a sealed bag (3) enclosing permeable soil and this bag is in turn preferably covered with soil. The bag is connected to the permeable open absorbing layer by a flared opening. Water is drawn from this bag by a horizontal pipeline (6). A vertical standpipe is connected to the bag for compensating air flow. This arrangement can be used also in tropical areas which suffer from lack of water.
Patent DE-2522252-A1 (DE)
Title: D-A converter for digitally coded numbers - has signals applied to digitally controlled frequency divider whose output operates switch
Inventor: MUEHLENKAMP JOCHEN
IPC: H03M1/00
Filed: 1975-05-20
Abstract: The digital-analogue converter is for digitally coded positive and negative numbers having a sign digit in addition to other digits, and converts the numbers into positive or negative analogue voltages. Digital signals are applied to a digitally controlled frequency divider whose output signals operate a switch through which, depending on the input signal sign, a constant positive or negative voltage is applied to a frequency-to-voltage or frequency-to-current converter, connected between a negative and a positive supply potential. The frequency divider is connected to one input of an EXCLUSIVE-OR gate which feeds one input of an AND gate.
Patent DE-2526828-A1 (DE)
Title: Available heat meter for air conditioning systems - measures temp. of heat delivering medium during both forward and return flow
Inventor: RAUFENBARTH FRANZ DIPL ING
IPC: G01K17/08
Filed: 1975-06-16
Abstract: A nonstable control device (34) consecutively opens and closes by-passes (28, 29) in the forward (12) and return (13) pipes. Both by-passes go through a common mixing chamber (16). A middle tempt. between forward and return medium flows is fed into the control device (34) as the variable nominal value. This value is compared in the control device (34) with the actual value in the mixing chambers. When a specified positive temp. deviation from the nominal value is reached, the lower temp. by-pass (29) is opened, while the higher temp. by-pass (28) is closed. When the deviation is negative, by-pass (29) is closed and the other (28) opened. Each time the by-passes are switched over, correction values for the measured quantity of heat are added to the content of at least one counter (44).
Patent DE-2534378-A1 (DE)
Title: Clamp for swivelling dental plaster cast carrier - fixes it to base plate of saw machine, using sliding socket
Inventor: HARNISCH HELMUT
IPC: A61C13/12
Filed: 1975-08-01
Abstract: The clamp fixes a swivelling dental plaster cast carrier to the base plate which carries the motor housing of the saw machine. A sliding socket (3) is arranged on the base plate containing a stepped recess (4, 4') into which fits the univeral joint head (33) of the model carrier (32), an internally threaded (6) bracing part (5) and a bolt lever (7) projecting out through slit (8). A cover plate (10) covers the recess (4, 4'). A pressure set screw (24) acting on the joint head (33) is arranged in the top of the internal thread (6) whilst a threaded bolt (18) passes from the bottom through the cover plate, base plate and a pressure plate (15), and is secured by a threaded pin (20) and a nut (23).
Patent DE-2535011-A1 (DE)
Title: Removing yarn faults in open: end spinning installations - by pegging ends before and after fault on spool face
Inventor: KOENIG REINHARD DIPL ING
IPC: D01H4/00
Filed: 1975-08-06
Abstract: In open end spinning installations drawing the yarn through a tube from the rotor to wind it on to a spool which is lifted from its driving clinder to lay on the yarn at the start of winding, whilst the end hanging from the spool is threaded into the spinning rotor outlet tube; irregularities such as thick or thin places in the yarn are removed by leading the spun yarn with the faulty place, in the form of a loop, to an auxiliary suction tube located on one side of the normal line of motion of the yarn. The yarn between teh spool and the faulty place is sepd. and the end attached to the spool, is clamped on the face of the spool nearest the auxiliary suction tube, close to the circumference of the spool by means of a clamping needle. The newly produced yarn feeding into the suction pipe is looped up to the clamp on the spool and when the faulty zone has been removed, the spool is lowered again on to its driver. The thread between the suction pipe and the clamping point is broken and the spun thread winds on to the spool again, whilst the two ends held by the clamping pin are knotted when convenient. It becomes possible to remove irregularities from the thread without highly expensive automatic clearing and knotting equipment and without reqinding. The ends of the thread left when a faulty length has been cut out are on the end of the finished package and can be joined by a hand knotter.
Patent DE-2539856-A1 (DE)
Title: Hot water domestic panel radiator - has grooved heating panels and convection plates with high induction of heat in convection plates
Inventor: MEIKE KLAUS
IPC: F28D1/03
Filed: 1975-09-08
Abstract: The Radiator comprises at least one heating panel (1, 2) with grooves (7) which form water channels leading into collecting channels. Convection plates (12) are connected to the heating panels. The convection plates are corrugated: for each section of the heating panel corresponding to the distance between grooves, the convection plate has two curves which are directed towards the heating panel and which are connected to the heating panel by their corrugation peaks (15, 16, 20 21) extending parallel to the grooves. At least one of these peaks is in contact with a groove of the heating panel. The distance between grooves if pref. at least 40 mm. Pref. each peak adjacent to the heating panel abuts against a groove of the heating panel, and associated with each groove are two peaks which abut against the grooves in the edge zones of the grooves.
Patent DE-2544828-A1 (DE)
Title: Dm for automatic rewinding of TV lead - has two winding spaces on common shaft connected to rewinding spring
Inventor: KOENIG HEINZ
IPC: H02G11/02
Filed: 1975-10-04
Abstract: The drum rewinds automatically TV or household appliance leads to a suitable length. Leads in the winding spaces are guided by slots in a common partition. The drum shaft (7) is perpendicular to the rotatable disc or sleeve 5) of a two-part spring housing (1, 6), and is formly held in it. It is supported in a bearing in the fixed part (1). The housing also has a feed-out slots (20, 21) for the two leads.
Patent DE-2605449-A1 (DE)
Title: Car seat with integral first aid box - has box:mounted in hollow padded armrest for access and accident protection
Inventor: FRIEDRICH HELMUTH
IPC: B60N2/75
Filed: 1976-02-12
Abstract: The armrests of the front of rear seats are provided with a hollow interior and a padded lid. One of the fittings is equipped as a first aid box, with suitable indicaton on the lid. The first aid equipment is thus easily within reach. The seat mounting protects the first aid kit from collision damage as well as thermal deterioration, by virtue of the padding. It can be fitted as a clip-on replacement or as a standard fitting in the model of vehicle.
Patent DE-2606642-A1 (DE)
Title: Hand operated stamp for impressions on drawings - has transparent plastics support for adhesive bonded transparent impression bearing plate
Inventor: SCHOLZ KLAUS-DIETER
IPC: B41K1/06
Filed: 1976-02-19
Abstract: The manually operated stamp is used for accurately placing stamp impressions of repeated figures on architectural or other drawings. The stamp has a support plate on which is adhesive bonded plate with the outline of the impression to be stamped. The transparent stamp plate with its configuration is fastened by a transparent adhesive on a support plate (1) made also from transparent material. The stamp plate (2) can be made from a photopolymer material. The support plate (1) can be made from polyacrylic resin. The support can be provided with side holders or grooves for ensuring direct view from above on stamping.
Patent DE-2607624-A1 (DE)
Title: Light metal short piston for IC engine - has bushes pressed into piston hub bore and gap between hub and bush at inside of hub
Inventor: SCHIEBER GERHARD
IPC: F02F3/00
Filed: 1976-02-25
Abstract: The light-metal piston (8) is intended for an IC engine of compact design. It is of the type having only a short distance between the upper part of the gudgeon pin and the inside wall of the piston top, and there is a solid support for the pin bearing hub (9). Metal bearing bushes (10) are pressed into the bore of the piston hub (9) and a gap (11) is provided between the inner surface of the bore and the corresponding outer surface of the bush adjoining the inside of the hub. The gap may extend over the entire, or over part of the periphery, and may be provided in the hub bore and/or on the bush.
Patent DE-2607741-A1 (DE)
Title: IC engine compression buffer chambers - communicate with cylinder in region of bottom dead centre piston position through ports
Inventor: WILDANGER ALFRED
IPC: F02B29/06
Filed: 1976-02-26
Abstract: The combustion engine is provided with a number of buffer chambers (1) of appropriate shape and size which individually or together communicate with the combustion chamber (3) via suitably shaped and sized orifices (2). The orifices are positioned such that they are uncovered in the bottom dead centre region of the piston (4) and until it reaches its lowest position, and closed as the piston moves upwards. The shape, size and position of the chambers (1) and orifices (2) may be variable, and the orifices may be closable. The chambers (1) may be interconnected and may be in communication with other units.
Patent DE-2612476-A1 (DE)
Title: Radio telephone system - permits selection of best quality communication path between mobile and central station via outstations
Inventor: NEDTWIG JOACHIM DIPL ING
IPC: H04W24/00
Filed: 1976-03-24
Abstract: A radio telephone system comprises a fixed central station with a number of fixed out stations connected to it by radio or cable. Mobile stations are then connected to the central station through the outstation that provides the best quality communication. A fixed central station (3) is in radio communication with a number of fixed out stations (2). A mobile station (1) transmits to the central station via an outstation which is selected by a tone measuring circuit (5) when the mobile station transmits. During this interval the conversation channel is blocked to permit measurement of signal to parasitic noise levels. The best quality communication path (f,f1,f2-fn) is then selected.
Patent DE-2616048-A1 (DE)
Title: Dynamic load current limiter - simulates thermal behaviour of load in parallel circuit and reduces current when limit is reached
Inventor: REICHENSPERGER HORST
IPC: H02H6/00
Filed: 1976-04-12
Abstract: The dynamic load is pref. a permanent magnet excited d.c. motor (2) with a low thermal time constant. The motor may esp. be of the disc rotor type and the load is limited in order to prevent thermal overload. The thermal behaviour of the load is simulated in parallel through its taken-up current serving as a reference variable. When a current-time limit representing the maximum thermal load is exceeded, the taken-up current is at least limited.
Patent DE-2621149-A1 (DE)
Title: Microwave oven for domestic use - has high temp. heater in side walls for pyrolytic self cleaning action
Inventor: HELLMANN DONALD
IPC: G12B17/06
Filed: 1976-05-13
Abstract: An oven is contained in an outer casing. A microwave generator in the space between inner and outer casings is connected by a wave guide to a plate in the back of the oven. The oven contains an infra-red grill which is used to brown the food. The door has a double glazed panel the inner leaf of which is impervious to micro-waves. The oven has electric heating elements on all four sides which are switched on to produce an inside temperature sufficiently high to give the self cleaning action.
Patent DE-2621153-A1 (DE)
Title: Hardening sand cores by cold box process - where catalyst is reclaimed from carrier gas after use
Inventor: RUDOLF HUBERT
IPC: B01D5/00
Filed: 1976-05-13
Abstract: Sand mouldings are hardened, esp. foundry cores made of resin-bonded sand and hardened by a gas or vapour catalyst in a carrier gas fed through a core box. The mixt. is the collected without reaching the environment, for at least partial condensn. and recovery of the catalyst in a counter-current heat exchanger. A harmless liq. gas (N2), is evapd. in the exchanger, and then warmed by passing through pipes at ambient temp., After use, the mixt. of catalyst and gas is fed through the exchanger to heat the liq., thereby condensing the catalyst which is removed before at least part of the used as is released to the environment. The pref. plant includes a distn. column for purification of the condensed catalyst before re-use, and an acid washer removing traces of catalyst from the used gas leaving the heat exchanger, i.e. before the gas enters the environment. A simple process permitting the recovery and re-use of the catalyst while using the min. amt. of energy, and also preventing environmental pollution.
Patent DE-2622343-A1 (DE)
Title: Coating compsn. contg. fluorinated hydrocarbon polymers - with elastic and self lubricating properties
IPC: C08L33/00
Filed: 1976-05-19
Abstract: Coating compsn. consists of three constituents i.e. (1) a fluorinated hydrocarbon polymer, (2) an elastomer with elastic properties and (3) a thermoplastic and/or heat hardenable fusible adhesive, (2) and (3) both being completely or partially soluble in the same solvent and this soln. itself can form durable homogeneous films. The mixing ratio of (1) to the mixt. of (2) and (3) is 20:80 to 80:20 pref. 30:70 to 60:40 pts. wt. Ratio of (2) to (3) = 95:5 to 30:70 pref. 90:10 to 40:60 but esp. pref. 30:70 pts. wt. (1) , (2) and (3) dissolve or disperse in the usual solvents. Films produced from the coating compsn. show the self-lubricating properties of fluorinated hydrocarbon polymers. When stretched, bent or compressed by an applied force, they are not destroyed and return to the original state, when the force is removed. They adhere well to rubber or other elastic articles. The compsn. is used for coating metals, plastics products, wood or paper and other materials.
Patent DE-2623048-A1 (DE)
Title: Miniature airship with cylindrical hull - has vertically swivelling engines at ends and reversible pitch propellers for manoeuvrability
Inventor: BUSCH HEINRICH
IPC: B64B1/24
Filed: 1976-05-22
Abstract: The miniature airship has a cylindrical hull (1) providing lift with outriggers (6a, b) at each end supporting the engines. These can be rotated vertically through 90 deg. by remote control from the gondola (4) from where the veversible pitch propellers can also be operated. Thrust can thus be exerted in either axial direction upwards and downwards by either or both of the engines. Suitably shaped ducts augment the thrust and direct airflow over the control surfaces (2, 3) at the inboard end of the ducting.
Patent DE-2625478-A1 (DE)
Title: Microencapsulation under elevated pressure - allowing encapsulation of volatile or fusible materials
Inventor: HODUM CLAUS-PETER DIPL PHYS DR
IPC: B01J13/10
Filed: 1976-06-05
Abstract: Microcapsules are produced under high pressure to contain a low boiling liquid or easily fusible material. The ratio of the internal material to that of the wall material is selected so that microcapsules are formed capable of withstanding the difference between the internal pressure and normal external pressure. Pref. a min. proportion of Wmin for the wall material Ww to the internal phase Wn is made according to the relationship (where rho n is the density of the internal phase and rho w the density of the wall material. In (I) DELTA P = p1-p2 the pressure diff. over the capsules; TAU t max corresponds to the max. tangential stress following inequality TAU t max  TAU t shear where TAU t shear = shear stress for the wall material, its value is 80 plus-or-minus 50 kg/cm2. Method is used for encapsulating volatile or fusible materials e.g. for making a bond for carpets by encapsulating a volatile solvent in a solid adhesive, the solid being released by pressure on the bonding strip. Method can also be used to encapsulate trichlorfluoromethane, propellants, wax-fluorochlorohydrocarbons mixtures.
Patent DE-2626803-A1 (DE)
Title: Programmed security alarm system - with suitable binary code combination that must agree with one entered via push button inputs
Inventor: REIL JOHANN
IPC: G08B13/16
Filed: 1976-06-15
Abstract: A security alarm system allows a coded combination to be pre-programmed that has to be entered into the unit for comparison before entry is allowed into a restricted area. The alarm system is encased in a single module (14) with apertures (16, 18) for emitting an acoustic alarm signal. A programming push-button (20) is coupled over a switching stage to a plunger to a ratchet wheel. The buttonis successively operated to move the ratchet to index cams to a selected binary code. Typically a four bit code is used and this is compared with one entered using four buttons (24, 25, 26, 27) on the front panel. The entered code is displayed (29-32) on the front panel. When the two code combinations agree entry is allowed.
Patent DE-2628504-A1 (DE)
Title: Item stack inverting mechanism - has square U-section walls enclosed in drum section supported by rollers for rotation through 180 degrees
Inventor: KRIFFT HELMUT
IPC: B65H15/02
Filed: 1976-06-25
Abstract: The mechanism inverts a stack in a housing with U-section walls, tilting through 180 deg.. The U-section walls (11, 12, 13) are enclosed in a drum (10) supported on rollers, which can be driven by an electric motor. The drum can comprise two sidewalls with a rectangular recess, open to one side, in each, there being curved rails preferably on both sides of each wall. The rollers can be mounted in pairs on shafts, one of them driven by the motor, and with the drive to the other taken from it, there being a reduction gear between the motor and the first shaft. The top and bottom walls in the loading and unloading position can each have air-inflated cushions, acting in opposition to tension springs.
Patent DE-2630461-A1 (DE)
Title: Polyphase transformer with star:star connected windings - has core limbs with additional strips or sheets of open windings in series
Inventor: ALTMANN GERHARD DIPL ING
IPC: H01F30/12
Filed: 1976-07-07
Abstract: The polyphase transformer has its windings connected to star-star. There is a compensating winding connected in the polygon on all the limbs of the core. This transformer is suitable for use with relatively low power. Each limb of the core has one or several additional strips or sheets of open windings. The width is in each case equal to the length of the limb. All the open windings are connected in series. Each limb is surrounded by a metal jacket which functions as an open winding.