baber/WOPTO huggingface dataset:
Patent DE-2631627-A1 (DE)
Inventor: KEMMERLING FRANZ JOSEF
IPC: F28F1/36
Filed: 1976-07-14
Abstract: The housing (1) of the heat exchanger is penetrated by a multiplicity of parallel finned tubes (2). The finned tubes (2) have a helical, rolled-on fin (3) with parallel fin edges, the double radius of the core filleting (4) corresponding to the distance between neighbouring fin edges. These finned tubes (2) are screwed through a deflecting wall (6) which has a threaded bore (5). In this case, the threads of the threaded bores reach as far as the core of the finned tubes (2). The deflecting wall (6) is formed from a sheet metal plate whose thickness is smaller than the width of the gap between neighbouring finned turns. The threads of the threaded bores (5) are formed by rim parts (7) of the holes in the deflection wall (6), for which purpose these parts have a radially extending slot as thread start and are helically interconnected. In this tube bushing, the leakage losses are largely to be excluded and, again, fixing the deflecting and supporting walls is simplified. <IMAGE>
Patent DE-2631795-A1 (DE)
Title: Rail mounted support carriages for moving trolley supply cable - hold cable in loops between carriages and move at relative speeds to maintain equal separation
Inventor: SCHUSTER ALOIS
IPC: B66C13/12
Filed: 1976-07-15
Abstract: The towing equipment is for insulated flexible cable attached to cable carriages, each driven along a cable carriage track by an electric motor. The cable carriages supply electric current to a fast moving trolley. The electric motors are connected together to rotate in the same direction. The drives of the cable carriages (2) are provided with mechanical transmission gearings which are so stepped up relatively to each other that the cable carriages (2) are positioned an equal distance apart during each movement of of the trolley (5). The cable carriages support the supply cable (3) in loops between successive carriages, extending from a fixed support (4) to the moving trolley (5).
Patent DE-2636973-A1 (DE)
Title: Maintenance-free steel post for street lamps and traffic lights - comprises steel tube embedded in structural foam, esp. of polyurethane, with thermoplastic outer tube, esp. of polycarbonate
Inventor: LANGMATZ HANS
IPC: E04H12/08
Filed: 1976-08-17
Abstract: Maintenance-free steel post for modern street lamps and traffic lights, opt. with one-way bending stress on the post, comprises a steel tube with apertures over its length and circumference, completely embedded in structural foam e.g., polyurethane foam. The other surface of the post consists of a thin-walled outer tube of thermoplastic material pref. polycarbonate. The steel tube pref. consists of several sections of different dia., and in the lower region of the post is an opening for introducing switch components. The post is protected from weather and environmental influences and hence does not require surface treatment e.g., cleaning and painting.
Patent DE-2649815-A1 (DE)
Title: Plastic materials cooker e.g. for casting asphalt - with outer bearing race fixed to paddle mixer shaft periphery and inner race to cover
Inventor: GEMMECKE KURT ING GRAD
IPC: C10C3/12
Filed: 1976-10-29
Abstract: A cooker for plastic materials e.g. casting asphalt has a domed cover which supports a vertical shaft for a paddle mixer. The shaft has on its top end a horizontal flange with a chain drive sprocket fixed to its periphery. The periphery also carries the outer race of a ball bearing, the inner race is attached to the underside of a stationary cover. This results in a simple and functionally reliable support for the paddle mixer shaft. The ingress of cooked asphalt into the bearing and drive has been made impossible.
Patent DE-2649971-A1 (DE)
Title: Braille printing machine using swellable recording surface - uses aqueous solution applied selectively to surface to form tactile swellings
Inventor: RITTBERG EILT-HEYO DIPL ING
IPC: B41J3/32
Filed: 1976-10-30
Abstract: A printing machine for producing tactile impressions on a recording surface is esp. intended for printing Braille. The recording surface (1) is made from a swellable material onto which an aqueous solution is applied in metered amounts. The solution causes the surface to swell where it is coated. By varying the structure of the material, impressions which can be differentiated from one another and from the recording surface remain behind after the solution has evaporated. The recording surface is typically made from a calendered intaglio paper or more specifically gelatine. The solution comprises an aqueous solution of glycerine of 5 to 50 weight percent.
Patent DE-2656782-A1 (DE)
Title: oligomeric silyl ether, useful free radical initiator - for polymerisation of unsaturated monomer and polyester resin
Inventor: WOLFERS HEINRICH DR
IPC: C08F4/42
Filed: 1976-12-15
Abstract: Oligomeric silyl ethers with a number average mol. wt. of 500-5000 are of formula (I): R1R2R3-O-(R4)(R6)-C(R5)(R7)--O-R8. In the formula R1 is (m)ethyl, phenyl, benzyl or chloromethyl, R2 is Cl, OH, OMe, OEt, R1 or A, R3 is Cl, OH or A, R4 and R5 are aryl gps. opt. substd. by >=1 1-4C alkyl, OMe, Cl or F, R6 and R7 are either R4 or R5 or 1-6C alkyl gps. opt. substd. by >=1 1-4C alkyl, OMe, Cl or F. 5-7C cycloalkyl gps. or H, R8 is H or a silyl gp. -Si(R1)-(R2)-A (IIe, and A is a gp. -O-C(R4)(R6)-C(R5)(R7)-O-R8 (III) the cpd. (I) contg. the structure -O-C(R4)(R6)-C(R5)-(R7)-O- (IV) between 1 and 20 times. (I) are useful initiators for free radical polymerisation reactions such as the polymerisation of conjugated dienes (butadiene, isoprene, chloroprene), vinyl chloride, vinylidene chloride styrene, vinyl acetate, (meth)acrylic acid and (meth)acrylic acid esters, etc. and in the curing of unsaturated polyester resins. (I) are generally used at 0.02-1, esp. 0.05-0.8 wt % on the polymerisable system. The catalysts have long storage life at room temp. but are very reactive at elevated temps (e.g. >40 degrees C, esp. 50-200 degrees C) to give rapid polymerisation without the formation of by-products causing bubbles in the compsn.
Patent DE-2702656-A1 (DE)
Title: Speed and distance meter with hold facility - shows speed over regular intervals prior to vehicle stopping
Inventor: ERZMONEIT HORST
IPC: G01D3/10
Filed: 1977-01-24
Abstract: The speedometer with distance travelled and interrupt facility provides a continuous indication of speed and a hold facility for the readout when the vehicle is brought to rest so that the speed over some set distance just travelled can be displayed. The endless distance scale is represented by one revolution of a circular disc divided into measuring intervals of 25 m. Each sector has an associated tachometer dial. Each tachometer pointer is driven from a toothed wheel. A pointer on the outer ring shows which of the speedometer dials indicates the last measured speed. An electromagnetically operated clutch mechanism below the disc is actuated by a switch every time the speed is sampled.
Patent DE-2708549-A1 (DE)
Title: Stopped pipe musical instrument - has injection moulded pipe with valve on air outlet for tone suppression
Inventor: HOYER HANS
IPC: G10B3/06
Filed: 1977-02-28
Abstract: The stopped pipe instrument may be simply produced by injection moulding, in which the wind is supplied through a windbox (4) past a core (3) to the resonant pipe (4) through a slot (1), to divide and produce eddying vibrations at a lip (2) which excite the air column (5). A labial valve (6) can be applied through a simple lever system to the air exit aperture (8) to stop the eddying and shut off the excitation, whilst a seal (7) prevents unnecessary loss of wind at the aperture (8).
Patent DE-2711700-A1 (DE)
Title: Compact steering lock for car - has lock barrel housed inside cylindrical bearing with profiled locking slot between bearing and housing
Inventor: LIMBURG JOACHIM
IPC: B60R25/021
Filed: 1977-03-17
Abstract: The steering lock has a spring loaded bolt (6) which normally rests in a blocking position in the steering column and which is pulled out of the blocking position by the ignition lock barrel (5) via a cam (27). The barrel is mounted inside the housing on a cylindrical bearing for axial and rotational movement. A profiled slot (15) between the bearing and the housing is formed by a segment and a ball bearing (12) which ensure that the key has to be fully withdrawn before the bolt can drop into place.
Patent DE-2714524-A1 (DE)
Title: Earth filled noise screen embankment - consists of concrete slabs which interlock at right angles using half width slots
Inventor: KNEBEL ROLF-DIETER
IPC: E01F8/02
Filed: 1977-04-01
Abstract: The structural element is for the erection of a noise-screening bank made from prefabricated concrete components and subsequently filled with earth. There is one set of rectangular concrete slabs of equal length, with two cutouts extending from one longitudinal side to the centre line matching slab thickness and shape and at regular intervals. A second set of concrete slabs of different lengths, are insertable at right angles in these cutouts, and these have cutouts from one side to the centre line, also matching slab shape and thickness but at varying intervals. Intervening spaces are easily filled with earth, which can support plants.
Patent DE-2718631-A1 (DE)
Title: Compander system for analog signals - uses compressor at transmitter and corresponding expander at receiver with digitised transmission path
Inventor: MUSMANN HANS GEORG PROF DR
IPC: H04B1/64
Filed: 1977-04-27
Abstract: At the transmitter the analog signals pass through a Dolby analog compressor (DKOM) and then through a low pass filter (TP) which limits the band-width. The signals are then treated in an analog/digital converter (A/D), quantized at 12 bits and encoded. The digital signals are then compressed from 12 bits to 10 bits in a compressor (MK) and the compressed digital signals are then transmitted. At the receiver the 10 bits signals are expanded to 10 bits in an expander (ME), then reconverted to analog signals in a digital/analog converter (D/A) and filtered by a low pass (TP). The analog signals pass through a Dolby expander (DEXP) and can then be reproduced.
Patent DE-2731744-A1 (DE)
Title: Blood handling unit for carcinoma treatment - uses electromagnetic waves to heat blood with electronic temp. control
Inventor: TEICHMANN ALFRED DR MED
IPC: A61M1/16
Filed: 1977-07-14
Abstract: The machine is for the hyperthermal treatment of human blood to combat carcinomas. The blood is circulated through the machine and heated by means of electromagnetic waves. The blood can be heated to minimum and maximum temperatures of 311 and 315 deg.K. respectively, the temperature being electronically controlled to within 0.05 deg.K. In the event of incorrect operation it can be so arranged as to allow blood to flow through at normal body temperature.
Patent DE-2732148-A1 (DE)
Title: N-Propanol-water cleaning solution - to remove rosin residue from soldered printed circuit plates
Inventor: LINDNER WOLFGANG
IPC: C23G5/032
Filed: 1977-07-15
Abstract: Wiring plates for electric and electronic circuits, which have been produced by using rosin-cored solders, are cleaned by using a fluid composed of a mixt. of n-propanol and water. The spent soln. is regerated by removing the impurities by distillation. The cleaning agent has good solubility for the rosin substance and those impurities which are water-soluble. The water in the soln. has no corrosive effect and by raising the flesh point of the agent, gives greater safety. The cleaning plant does not need to be constructed so that it is explosion-proof.
Patent DE-2733236-A1 (DE)
Title: Sewing machine motor control - with circuits to activate brake mechanism according to control pedal movement
Inventor: NISHIDA KOJI
IPC: D05B69/18
Filed: 1977-07-22
Abstract: The motor control system has circuits to determine the speed of the motor according to the downward movement of the control pedal. A needle position detector registers the arrival of the needle in a pre-set holding position. A circuit for a command signal on a pre-set constant trigger phase is switched on by a stop signal from the control pedal to deliver an indicator signal to the comparator circuit with a trigger or spark signal to reduce the motor speed. A brake command circuit is switched on the stop signal from the control pedal and a command signal is sent to the braking mechanism if the needle detector registers the arrival of the needle in a pre-set holding position. The system reduces the mechanical shock forces and noise levels by controlling the movements to bring the needle to rest.
Patent DE-2737448-A1 (DE)
Title: Auger spiral production system - uses rings cut from steel sheet, bent to shape and welded into place
Inventor: RADOMSKI BERNHARD
IPC: B65G33/26
Filed: 1977-08-19
Abstract: The system produces a conveyor spiral surface, particularly for an auger, the generatrix of the surface being a straight line inclined to the conveyor axis. Rings are burnt, cut or stamped out of sheet steel, their internal and external diameters being such that they can be shaped to fit the shaft merely by bending into a spiral of the desired pitch and angle to the shaft. The generatrix is twisted in relation to the conveyor axis and does not intersect it, and each ring produces a peripheral angle of more than 360. the rings are arranged in a row and joined by welding etc. to each other and the shaft.
Patent DE-2743642-A1 (DE)
Title: Transfer press for producing aerosol containers - has separate hydraulic drive to each punch connected by self-aligning joint
Inventor: UEHLINGER WERNER
IPC: B21D22/20
Filed: 1977-09-28
Abstract: The transfer press for manufacturing the bodies of aerosol containers or cans for drinks has five separate punches and dies (36). Each punch is connected by a self-aligning joing (38) to piston rods (39) of hydraulic jacks. The hydraulic jacks are mounted on the cross beam (25) which is supported by the side columns (24) of the press. Providing a separate hydraulic drive to each punch allows each punch and die to be set to much higher degree of accuracy than is possible with conventional transfer presses which use a common ram to carry all the punches. This is esp. useful when working with thin sheet metal.
Patent DE-2744331-A1 (DE)
Title: Cladding the frontage of building with flat or shaped PVC panels - using clamping strips to achieve decorative pattern effect
Inventor: PATZNER ALFRED
IPC: E04F13/18
Filed: 1977-10-01
Abstract: Cladding system for partly covering frontages of buildings comprises plastics plates arranged in any desired pattern and fastened to the frontage in known manner, pref. by means of mounting strips or bars. The plates are suitably made of impact-resistant PVC. Used for covering smooth window-less frontages. A pleasing decorative effect is achieved.
Patent DE-2745860-A1 (DE)
Title: Sewage aeration system - with aerator revolving in circle on tank bottom
Inventor: WAGNER NORBERT
IPC: C02F3/20
Filed: 1977-10-12
Abstract: A system for the introduction of a gas into a liquid uses a mechanism which describes a translational motion in the liquid. The motion pref. is a circular one in the horizontal plane. Aeration of sewage in biological treatment. This system is universally applicable. It ensures a uniform aeration and is very economical.
Patent DE-2746047-A1 (DE)
Title: Interlocking load bearing paving stone - has end protrusions and matching side cut=outs, all equally offset from centre
Inventor: ROGUSZCZAK ROBERT
IPC: E01C5/00
Filed: 1977-10-13
Abstract: The element is used in building up a composite paving layer without joint gaps, with no danger of the surface being presses out of a level plane, even under traffic loading. Each element (1) has similarly shaped end faces (2), and side cutouts (3) which are complementary to these. Both sets of configuration are offset in the same direction and by equal amounts, relative to the centre point (M) of the element. They may be convex and concave curved respectively, pref. with a more pronounced curve towards the edge, and with curvature running exponentially.
Patent DE-2750439-A1 (DE)
Title: Sound-absorbent mat for cars - is divided into sections, with chambers, filled with water, scrap metal or other materials performing mass damping
Inventor: SORGATZ ULRICH DIPL ING DR
IPC: G10K11/16
Filed: 1977-11-11
Abstract: The mat has a heavy layer and a flexible layer. The heavy layer is divided into neighbouring sections (3), to render the mat flexible. The sections have chambers (4) to accommodate materials (6), e.g. water (6), sand, small particles of scrap metal, etc. The chambers are formed by welded synthetic foils. Each chamber may contain an air pad (5), or an additional chamber with air pad, located below it. The flexible layer is divided into sections, which are positioned below those of the heavy layer.
Patent DE-2754209-A1 (DE)
Title: Variable speed control of asynchronous motor - has three=phase supply provided by commutator driven by low cost motor operating off DC supply
Inventor: GASSMANN G G
IPC: H02P25/18
Filed: 1977-12-06
Abstract: An asynchronous electric motor is used as the basis of a variable speed drive operating off a d.c. supply. The three phase suppl (T, R, S) for the asynchronous motor (AM) is provided by a commutator (RK) that is coupled to a low cost, low power motor (HM) that is driven by the d.c. output of a mains rectifier (Q). A pole changer (PW) allows the direction of rotation to be reversed. The asynchronous motor speed is changed by varying the commutator motor speed.
Patent DE-2755120-A1 (DE)
Title: Spark plug electrode mfr. - by melting metal core to metal sheath
Inventor: DAVIES MICHAEL JOHN
IPC: H01T21/02
Filed: 1977-12-10
Abstract: A spark plug electrode is made by locating a core of thermally conductive metal co-axially in the box of a tubular outer metal sheath. The sheath is worked down on the core. The core is removed from a region at one end of the sheath and the sheath is melted where core is removed to cause it to seal over the end of the core. The electrode runs cooler and has longer life. The use of additional brazing materials and fillers are avoided. The core may be of Cu, Al or alloys based on these. The outer sheath is of Ni, Ni-based alloy, Mo, stainless steel, refractory metal or metal alloy. The sheath may be worked by swaging or drawing the core and sheath through a die. The melting may be carried out in air or partial vacuum with high energy beam or laser.
Patent DE-2818757-A1 (DE)
Title: Economical paper hand towel dispenser - has upright paper roll with vertical cut forming tear off sections at outlet
Inventor: LAY KURT
IPC: A47K10/38
Filed: 1978-04-28
Abstract: The paper dispenser contains an upright fixed paper roll (3) which has a radial cut (11) passing from the inner diameter to the outer perimeter and preferably extending over more than half the height of the roll. The paper is drawn off from the inner diameter of the roll down through an outlet so that when the strip of hand towel is pulled through the outlet slit (10) it is torn off along the cut (11) so that only certain lengths of towel are used. This slit is in a resilient disc (9) so that there are no serrated edges.
Patent DE-2825573-A1 (DE)
Title: Spring strap for holding long rods - has storage drum clamped into slot in housing by clamping screw
Inventor: GROSS LOTHAR
IPC: F16F15/067
Filed: 1978-06-10
Abstract: The clamping arrangement is used for fastening, clamping and releasing flat spring straps enclosing long rod shaped components. The fastening, clamping and releasing of the strap is relatively rapid. The clamping element (5) is arranged into the storage drum (3) accommodating spring strap (4). The clamping element is fitted into the slot (2) in the housing (1) for clamping and fastening the spring strap (4). A friction coupling is arranged between the clamping screw and sleeve of the clamping mechanism. The friction coupling has slotted spring washer held under preload in the bore of the sleeve.
Patent DE-2833368-A1 (DE)
Title: Frequency difference conversion circuit - produces voltage corresponding to difference between measured and reference frequency using rectangular signals
Inventor: HELLMANN JUERGEN
IPC: G01R19/14
Filed: 1978-07-29
Abstract: The voltage polarity depends on the sense of the frequency difference. Two equal periodical rectangular signals with only "0" and "1" logic states are generated. Their period corresponds to that of the actual frequency (fx), and they consists of a first part with the state "1", whose duration is equal to the half-period of the required frequency (fo), and of a second part with the state "0", whose duration is equal to the remaining part of the actual frequency period. They are so shifted relative to each other, that the first part of the second signal directly follows the first part of the first signal. Pauses between second parts and their overlappings are detected by logic AND or OC circuits and converted into a corresponding voltage.
Patent DE-2836111-A1 (DE)
Title: Offset printing press roller washing mechanism - has metering roller gear-driven from washing roller generating opposing frictional movement
Inventor: PURR HORST
IPC: B41F35/06
Filed: 1978-08-17
Abstract: The roller-washing mechanism is for the rubber blanket cylinder of an offset printing press, particularly for office use, having a rubber-coated washing roller gear-driven from the blanket cylinder and dipping into the washing liquid in a trough, swinging into and out of engagement with the blanket cylinder. A radially-spring-loaded metering roller paralle to the washing roller acts against it at a set pressure above the level of the liquid. The smooth-surfaced metering roller (19) is positively gear-driven from the washing roller (13) as to generate between them at the point of contact a frictional movement in the direction opposite to the direction of rotation of the washing machine.
Patent DE-2848721-A1 (DE)
Inventor: LINDE GERHARD DR
IPC: B01D53/34
Filed: 1978-11-09
Abstract: 1. A process for the removal of unrequired gaseous components from waste gas which are produced during the combustion of carboniferous fuels by washing with a physically acting absorbent at below 0 degrees C, wherein after the absorption of the gaseous components, the absorbent is subjected to regeneration and recycled to the washing step, characterised in that, prior to their introduction into the washing step, the waste gases from the combustion are fed in the hot state into heat exchangers (3, 4) and are cooled in indirect heat exchange in two consecutive stages with gas streams to be heated, and wherein in the upper temperature range (5, 6) of the heat exchange, combustion air (50) required for the combustion of the fuel and an additional air stream are used as the gas streams to be heated, the additional air stream, after being heated, being used as a heating gas (41) for operating an absorption refrigerating unit (40) by means of which the cold requirements of the washing step are met.
Patent DE-2848747-A1 (DE)
Title: Motion detector for deadman alarm - using light reflected from rotatable armature with alternating reflective peripheral zones
Inventor: BUNKE HORST
IPC: G08B13/184
Filed: 1978-11-10
Abstract: The motion detector is carried by a monitored individual and allows an alarm signal to be automatically provided when no movement is detected for longer than a given period. It comprises a rotatable armature (2) which has peripheral surface zones (3, 4) with differing reflective characteristics, with a light source directing light onto these peripheral zones. A photodetector converts the reflected light into a corresponding signal. Pref. the light from the source is directed onto the periphery of the armature via a first light conductor (5) and the reflected light is directed to the photodetector via a second light conductor (5'). The photodetector is coupled to an evaluation circuit which detects a continuous signal from the photodetector, indicating no rotation of the armature, to provide the alarm signal.