baber/WOPTO huggingface dataset:
Patent DE-2922028-A1 (DE)
Inventor: ROHDE WILHELM
IPC: F25J3/00
Filed: 1979-05-30
Abstract: In the fractionation of a gaseous mixture, e.g., air, by rectification, wherein liquid in the sump of a rectifying column is heated and thereby partially vaporized; and simultaneously sump liquid is withdrawn from a lower zone of the sump liquid bath, and is recycled into the bath above the point of withdrawal, the improvement, prior to the recycle step, of passing the withdrawn sump liquid from the lower zone into a heat exchanger disposed in the sump, said heat exchanger having a substantially sealed bottom end at a level below the liquid level of the sump, and an open top end at a level higher than the liquid level of the sump; said withdrawn sump liquid being passed into the bottom end of said heat exchanger and partially vaporized therein, and removing resultant liquid-vapor mixture from the heat exchanger at the top end above the level of the liquid bath. This system provides pump-free circulation of the sump liquid and the use incorporates an on-line adsorber to remove deleterious impurities from the sump liquid, e.g., hydrocarbons from oxygen.
Patent DE-2929300-A1 (DE)
Title: Reactor for heterogeneous catalyst gas phase reactions - is cross sectionally tailored to specific heat requirements in different reaction stages
Inventor: BALDUS WOLFGANG DIPL PHYS DR R
IPC: B01J8/06
Filed: 1979-07-19
Abstract: Reactor contains catalyst through which the reacting gases flow. The flow passages are surrounded by a heat transfer medium. The cross sectional area of these flow passages contg. the catalyst are tailored to suit the residence time and heat transfer requirements for different stages of the reaction. This is achieved e.g. by using tubes the dia. of which alter at different levels in the reactor. Appts. is used for endo or exothermic catalytic reactions e.g. NH3 and CH3OH syntheses. Tailoring the reactor cross section to the actual heat load requirements of the system, gives better control and considerable financial advantages.
Patent DE-2931187-A1 (DE)
Title: Plastics bag making and stacking machine - has welding roller, perforator and removal wheel feeding composite web to stacking drum
Inventor: SCHERZ WILHELM
IPC: B31B155/00
Filed: 1979-08-01
Abstract: The machine for making bundles of plastics bags having a trapezium shape, suitable for wrapping flowers, forms each bundle of e.g. three stacks, with their edges joined by a narrow bridging piece, ready for tearing off. The machine has two rollers (72,74) between which two plastics webs are drawn ready for welding together. The webs are offset, so that end strips are formed to assist their advance through later stages. The edges are sealed by welding, and selective cuts are made by the welding members. The composite strip is advanced between a short upper conveyor belt (80) and a longer belt (78)underneath, after passing a welding roller (72) which makes the sloping cuts. The composite web is removed from the lower conveyor (78) by a rotor with four gripping arms (120) which deposit the web onto a six sided stacking drum. Perforations are made in the sections so that they will fit onto spikes (192) projecting from the ends of the stacking drum. The sections are removed from the web by a swinging arm (214) above the drum.
Patent DE-2931653-A1 (DE)
Inventor: MEINERS HELGA
IPC: E05B19/08
Filed: 1979-08-03
Abstract: 1. Locking device having at least one profiled lock cylinder, this comprising a lock cylinder housing (10) with cock profile and a lock cylinder core (20), mounted rotatably in a bore (16) of the lock cylinder housing (10), with a key passage (22) formed for the reception of a flat key (26), where in the profile sack (14) of the lock cylinder housing (10) and in the lock cylinder core (20) housing pin bores (50, 52) and core pin bores (54, 56) are provided in two adjacent longitudinal planes (E, F) each directed in a row one behind the other towards the narrow side of the key passage (22), for the reception of springloaded pin tumbler pairs (58, 62; 60, 64), the core pins (62, 64) of which co-operate at their radially inner ends with two notch rows (68, 70) arranged in adjacent narrow side regions of the flat key (26), while furthermore the pin tumbler bores (50, 54; 52, 56) of the two rows are offset in relation to one another in the longitudinal direction of the lock cylinder core (20), and where finally the control faces (68c, 70c) of the notches (68, 70) of the flat key (26) stand substantially perpendicularly to the respective longitudinal plane (E, F) accommodating the pin tumbler pairs (58, 62; 60, 64), characterised by the combination of the following features : a) the longitudinal planes (E, F) containing the housing pin bores and core pin bores (50, 52; 54, 56) of the individual rows are inclined in relation to one another at an acute angle (alpha) converging towards the lock narrow side, the apex of which angle coincides approximately with the axis (O) of the cylinder core and the angle bisector of which coincides approximately with the plane (S) of symmetry of the lock cylinder, which passes through the cylinder core axis (O) ; b) the cross-sectional profile of the flat key (26) is branched on the narrow side forming a longitudinal recess (42) and the lock cylinder core (20) comprises a filler rib (44) engaging in the longitudinal recess (42) between the profile branches ; c) the key notches (68, 70) are continued at least in part by blind notches in the other profile branch in each case.
Patent DE-2931956-A1 (DE)
Title: Monitoring control for sunshade awnings - has temp. sensitive sensors in housing on external building wall, with downstream apertures
Inventor: BENTHIN JOHANNES
IPC: E06B9/68
Filed: 1979-08-07
Abstract: The monitoring circuit can be applied to all movable sun shades on buildings for their automatic positioning. The electric circuits controlling the drives incorporate temperature-sensitive sensors in a housing, which can be secured at random to the building. This housing has an aerodynamic shape and has wall apertures in its downstream section. Pref. the housing is droplet-shaped. Its leading section is of nearly circular cross section, while the downstream section is separately arranged behind the maximum width of the leading section. The sensors have a heating system at a given distance. They consist of two bimetal springs, one being mounted at a slight spacing from a heating resistor. The two springs are series-connected by a switching contact, whose make position has been adjusted under heating. The sensors may be formed by resistors in a Wheatstone bridge arrangement.
Patent DE-2932245-A1 (DE)
Title: Valve for hydraulic vibration damper - includes ring made of shape memory alloy, so width of choke bore in valve alters when temp. changes occur
Inventor: BRUNKEN GERD ING GRAD
IPC: C22F1/00
Filed: 1979-08-09
Abstract: Valve includes an annular gap possessing a cross-section controlled by a ring made of a shape memory alloy, e.g. contg. 55% Ni, 45% Ti. The ring is flat at normal temps., but when it is heated it bulges inwards due to the "memorised deformation", and thus reduces the width of the annular gap through which the hydraulic fluid flows. Redn. in gap width compensates for the redn. in the viscosity of the fluid at elevated temps., so the same damping effect is achieved. When the valve cools, the ring reverts to its initial, flat shape, so the cross-section of the annular gap, i.e. the choke bore, is restored to its initial size.
Patent DE-2933114-A1 (DE)
Title: Extendable spectator stand - has horizontal surfaces with wheeled support column on one side, other side being supported by adjoining surfaces
Inventor: HEIJBOER MATTHEUS ADRIAAN
IPC: E04H3/12
Filed: 1979-08-16
Abstract: The extendable spectator stand comprises seating and/or standing and/or walking surfaces (1"-5") which are vertically superimposed when not extended. The surfaces are supported on columns (1-5) with rollers to permit their extension. Each surface has a support column on one side only, the other side being supported by the adjoining surface having its own support column on that side. The coupling between adjoining surfaces may be such as to permit some relative pivoting motion in a vertical plane without permitting relative vertical displacement. This coupling is pref. rigid in a horizontal direction.
Patent DE-2933127-A1 (DE)
Title: Fire resistant seat for butterfly or ball valve - has prestressed collar and lip mounted on annular shoulder
Inventor: PRIESE WERNER K
IPC: F16K17/38
Filed: 1979-08-16
Abstract: The body of the valve includes an annular shoulder adjacent an annular seat; and an annular collar of incombustible corrosion resistant, nongalling material is specifically mounted on the shoulder. The collar includes a portion hermetically connected to the shoulder and a second, lip like portion free to move with respect to the shoulder and normally spaced from the selectively positionable valve element. This collar and more specifically the lip portion is provided with prestressed regions normally situating the lip portion proximate the body shoulder and in position wherein the lip portion will not interface with the movable valve element. Upon thermal relief of the stresses, the collar reacts to dispose the lip portion into sealing engagements with the valve elements.
Patent DE-2934189-A1 (DE)
Inventor: TILETSCHKE LOTHAR
IPC: E04C5/00
Filed: 1979-08-23
Abstract: The invention provides a device for housing steel reinforcement in areas where joints are made between first and subsequently poured concrete structures such that connecting portions of the steel reinforcements are isolated during pouring of the first concrete and are thereafter bent out for connecting the subsequently poured concrete structure. The device comprises a housing having an open box, a cover therefore, and anchoring strips disposed in the transverse direction of the box at intervals along its length and at the bottom thereof. The anchoring strips having transverse slots in the upper portion thereof to receive and support the connecting portions of the steel reinforcements. The cover is capable of being locked to the box and capable of passing the anchoring portions therethrough.
Patent DE-2935200-A1 (DE)
Title: Covered transport and storage container for calcium chloride powder - for eliminating dust in mines has covered outlets with hinged covers
Inventor: GOTTSCHALK GUENTER
IPC: E21F5/16
Filed: 1979-08-31
Abstract: Covered container with outlets for the transport and intermediate storage of Ca chloride powder (I), which is used for eliminating dust in mines and is distributed through lances into the drift by means of compressed air, has outlets in the removable cover, which are covered by hinged covers fixed with closed linkages. Pref. the outlets are in the side near the bottom (3) at a spacing allowing for the angle of repose of (I). The container is satisfactory for transport, can be sealed well and can be emptied as completely as possible.
Patent DE-2935416-A1 (DE)
Inventor: SIMS RICHARD
IPC: C03B5/235
Filed: 1979-09-01
Abstract: A method and a system for uniformly heating a glass stream flowing in the feeder of a glass melting furnace wherein power or energy is supplied through the electrodes immersed in the glass melt and wherein the temperature of the glass stream is continuously detected, has the current flowing between cooperating electrodes maintained constant independently of the resistance defined by the glass melt by controlling the voltage as long as the temperature of the glass stream does not deviate from predetermined limits and the current flow of at least a number of electrodes positioned at the inlet of the feeder are controlled to compensate for temperature variations when the tolerable deviation limit has been exceeded.
Patent DE-2938567-A1 (DE)
Title: Highly integrated semiconductor device - has housing with fine connecting wires and thicker conductors for both operating and testing contacts
Inventor: FUCHS PETER DIPL ING
IPC: H01L23/057
Filed: 1979-09-24
Abstract: The highly integrated semiconductor device has a housing (3) with a recess near the middle, containing the semiconductor slice (7). A set of fine connecting wires (6) extends inside the recess towards thicker wires (1) for connection to contacts (2) along the sides, at one end. Further thicker wires (5) connect a proportion of the fine wires with contacts (4) so that test readings can be made. The housing has a top cover, and the test contacts are embedded in holes through this cover. These contacts are arranged in a pattern so that a circuit testing device with a set of test pins can be brought into contact with the device, to make a number of tests simultaneously.
Patent DE-2943843-A1 (DE)
Title: Coupling device for light waveguide of data transmission system - has section of guide curved inside attenuating device of transparent material
Inventor: EMMRICH HELMUT
IPC: G02B6/42
Filed: 1979-10-30
Abstract: The coupling device is for a light wave guide used for data transmission. The light is injected or extracted from the liqht wave at specific areas of curvature. The light wave guide has a sheathing made from fabric with a coarse structure. A section of the guide (1) is curved inside an attenuating device (2,3) made from transparent material. The attenuator is made with a coupling or decoupling device (5). The attenuation coefficient can be varied. The decoupling device is a photo diode.
Patent DE-2944679-A1 (DE)
Title: Trailer brake with overrun control - has tractor brake acting on overrun linkage for normal braking
Inventor: PEITZ SEN JOSEF
IPC: B60T11/10
Filed: 1979-11-06
Abstract: The overun control has a brake cylinder (10) mounted on the drawbar above the overun brake linkage and coupled to it by a sliding coupling with interlocking stops (8,9). The pressurised cylinder holds the brake in the off position so that when the tractor is braked the connection to the drawbar cylinder is vented to allow the spring loaded cylinder to pull up the overun brake. No separate brake connections are required between the tractor and the trailer. If the drawbar is pushed by the trailer the brakes are applied. If the tractor brake pressure fails then the brakes are again applied automatically.
Patent DE-3006298-A1 (DE)
Title: EM valve with piezoelectric transducer - has moving plate between two seats to open and close connection
Inventor: WEIGER GUENTER
IPC: F16K31/00
Filed: 1980-02-20
Abstract: The valve has a plate (12) moving between two seats at the sides of the casing. The plate is moved by an electrically-excited piezoelectric transducer (15). The plate in its closed position and separates the connection between two connections via a sealing boundary (2). The sealing boundary has a sealing zone (25,26) delineating an annular channel (28). In the plate open position of the plate, the two connections (lines 10 and 11) one of which leads from the circular channel, are connected together via both sealing zones. The valve has a fast response time.
Patent DE-3006539-A1 (DE)
Title: Antitheft device for vehicle - has steel cord with alarm wire which loops through steering wheel or is connected to trailer boat etc.
Inventor: STOCK PETER
IPC: B60R9/00
Filed: 1980-02-21
Abstract: The antitheft device has a steel cord fixed at one end into a block of synthetic resin and at the other end provided with a ring used for securing inside the vehicle and fixed by a lock to the steering wheel, seat belt or similar. The steel cord is connected electrically by a two-core cable and plug via a relay that operates the vehicle's signalling horn to raise the alarm. The steel cord has an insulated flexible conductor wrapped around its outer surface. The conductor is connected via a resistor inside the block to the cord. The cord and the conductor are connected via the two-core cable and plug to the alarm unit.
Patent DE-3008042-A1 (DE)
Inventor: ZEGGEREN WILLEM AART VAN
IPC: G07D1/00
Filed: 1980-03-03
Abstract: The invention relates to a coin dispenser for use in vending machines for giving out change when the value of money inserted into the machine exceeds the price of the merchandise purchased. The aim of the invention is to simplify the design of such a dispenser so that different sets of coins can be catered for from a small range of parts. 
<??>The dispenser comprises vertical coin tubes (12, 13, 14), one for each denomination of coin dispensed, and respective channels (15, 16, 17) extending horizontally beneath each tube. Each channel has an aperture (21, 22, 23) in its lower wall offset from the axis of the tube, (12, 13, 14) and an apertured slide plate (24, 25, 26) is movable in the channel (15, 16, 17) from below the coin tube (12, 13, 14) to over the aperture (21, 22, 23) in the lower wall so as to dispense the coins singly from the stacks in the coin tubes. 
<??>The coin tubes extend down through apertures (18, 19, 20) in the upper wall of their respective channels so that the lower end of the tubes are the lowest point in the coin channels. With this arrangement a range of denominations of coins of differing thicknesses can be catered for by setting the lower end of the tube at a height appropriate to the thickness of the denomination of coins during assembly.
Patent DE-3014560-A1 (DE)
Title: Thermal engine utilising natural heat sources - has several units in series discharging fluid onto common turbine for high efficiency
Inventor: KNAUER DIETER
IPC: F03G7/06
Filed: 1980-04-16
Abstract: The header (110) has connections (113,116) for a cold fluid and for a hot fluid. There is a pump (123,124) for each fluid. The hot and cold fluids are pumped alternately. From the header the fluid flows through three vessels (111) in series to an outlet header (112). Each vessel contains a thermal element (101,102,103) which expands and contracts according to the temperature of the medium flowing across it. Each element is connected to a piston assembly (126), which pumps fluid onto a wheel (128) of a turbine (127). The assembly of three units in series increases the efficiency and reduces the space required for a machine with a given output.
Patent DE-3019054-A1 (DE)
Title: Injection moulding machine for two colour moulding - has removal basket with individual compartments for each moulding thus eliminating need for later sorting
Inventor: WEBER KURT ING GRAD
IPC: B29C31/00
Filed: 1980-05-19
Abstract: An injection moulding machine for producing esp. two-colour mouldings, has a removal and transporting and sorting device for removing the mouldings from the mould when it is opened. This device consists of a collecting basket which is pushed by a pneumatic or hydraulic ram horizontally into the space between the open halves of the mould, which receives the mouldings, pref. in individual receptacles, and is then retracted by the ram, to discharge the mouldings into a sorting device positioned beneath it. Thus the mouldings are received and stored in the same order as they were discharged from the mould. Pref., the direction of travel of the basket is perpendicular to the direction of opening of the mould. Pref. also, the receptacles in the basket are at the same spacing as the corresponding cavities of the mould. There may be several, esp. parallel rows of receptacles either alongside or above one another. The arrangement enables these to be removed from the mould in a sorted manner, without being banged together and damaged.
Patent DE-3020496-A1 (DE)
Title: IR double sighting night sight - has wide angle picture tube viewer and narrow angle indicated aiming sight
Inventor: WARMT RUDOLF
IPC: G02B23/12
Filed: 1980-05-29
Abstract: The sight comprises two parallel fixed tubes, one of narrow angle using two lenses and providing an LED indication of correct aim, the second using a picture tube or residual light amplifier to provide a wider angle picture of the scene. The narrow angle tube (24) houses two lenses (8,9) with narrow angle focus onto an infrared sensitive detector, e.g. photodiode (15), with associated amplifier (14) which feed a decoder (11) to drive the LED indicators (16,17) located in the vision field of the first, wider angle tube and ocular lens (4). In the first tube (19) the lens focusses light on the picture tube (3), the screen (18) of which is viewed through that tube's ocular lens (4). The equipment is battery (7,13) powered.
Patent DE-3023155-A1 (DE)
Title: Piezoelectric contact microphone - has contact area supporting and operating stressed piezo pillar under its elasticised lower retaining flange diaphragm
Inventor: IRNSTETTER JOHANN
IPC: H04R1/46
Filed: 1980-06-20
Abstract: The contact microphone is for speech reproduction and is designed for constructional simplicity together with low susceptibility to interfering background noise. A piezo-electric element (2) is prestressed between the greater mass housing (4) and the contact element (1) which transmits the pressure waves from the body surface to the piezo-electric element. The piezo-electric element (2) is prestressed by the elasticised lower flange (1a,1b) of the contact element (1). The flange (1a,1b) fits over the sprung sides of the heavier metal housing (4) and exerts the prestress tension on longer dimension of the piezo-electric element. The piezo-electric element (2) is supported in a central recess on the under side of the contact element (1) and contained in a central compartment of the main housing (4). The contact element (1) is considerably larger in contact area than the piezo-element itself. Electrical connection is from a plate (3) at the base of the piezo-element (2) and a second contact (6) at the base of the housing thereby using the piezo as a high pass capacitor.
Patent DE-3024725-A1 (DE)
Title: Laminated packaging foil - with plastics core and bilateral aluminium foil coating
Inventor: LANGEN HANNO DIPL ING
IPC: B32B15/08
Filed: 1980-06-30
Abstract: A laminated foil for use as packaging material consists of one or more central plastic layers of PVC or other plastic materials which is lined on both sides with aluminium foil. The plastic foil has a thickness of 50-200 mu and the aluminium foil of 20-60 microns. At least one of the aluminium foils is coated with another biaxially stretched plastic foil of 10-40 mu thickness, such as oriented polypropylene, to improve the elongation. The outer layer can carry a lining of good hot sealing capacity. The foil is easy to sterilise and is more rigid for the same wall thickness. It is compatible with food and forms a good seal.
Patent DE-3031086-A1 (DE)
Title: Magnesia mortar or flooring cement - where premix is made contg. magnesium hydroxide and magnesium chloride, and is then mixed with water and filler, esp. gravel
Inventor: DUYSTER HUBERT DIPL CHEM DR
IPC: C04B28/32
Filed: 1980-08-16
Abstract: A dry premix is first prepd., contg. magnesium hydroxide and magnesium chloride, in which the wt. ratio of the MgO in the Mg(OH)2 to the MgCl2 is between 0.8 and 2.0. A mixt. is then made contg. by wt. 80-85% of the dry premix and 15-20% water, plus 45-55% of hardening fillers. The percentage of the fillers is based on the total wt. of the mixt.; and the fillers have a max. particle size of 5 mm. The object is to simplify the prepn. of the mortar on a site where it is to be used, and to employ non-absorbent fillers. The settling out of the fillers is prevented, and the mixt. can be made into exact shapes and does not crack.
Patent DE-3033937-A1 (DE)
Title: Hanging shelving with two side bars with grooves across them - includes several cross-strips at back with flanges and perforated with holes
Inventor: HARTMANN FRIEDRICH
IPC: A47B57/10
Filed: 1980-09-10
Abstract: The hanging shelving consists of two side sections and several superimposed shelves (18) fixed at the ends to the side sections. The side sections are in the form of bars (10) which have grooves in (11) crosswise to their lengthwise direction. Near the back, the bars (10) have crosswise strips (12) lying flat against them and in which are fixture holes (13). One end of each crosswise strip (12) has a middle flange (14), and the other end has a double flange with a centre cut-out piece (17).