baber/WOPTO huggingface dataset:
Patent DE-2454807-A1 (DE)
Title: Directional receiver for electromagnetic radiation - with low-noise individual transmission paths avoiding narrow band resonances
Inventor: MEINKE HANS HEINRICH PROF DR
IPC: H01Q23/00
Filed: 1974-11-19
Abstract: The receiver has a passive antenna system (A) with several output gates (1-1' and 2-2') each connected to an amplifier (V1, V2) from which the output signals are transmitted through cables (K1, K2) to an analyser (N). The antenna wires are interrupted at each output gate and the control electrodes of the amplifier input transistors (T1, T1', T2, T2') are connected to terminals (1, 1', 2, 2') at the points of interruption. Each amplifier has a low-noise feedback voltage (R1, R2) in series with the input transistor control paths and proportional to the amplifier output voltage. The feedbacks are designed so that any incident plane wave from the zero direction produces a zero response in the analyser.
Patent DE-2454940-A1 (DE)
Title: Impact machine using differential piston - has two opposed piston surfaces of different dimensions operated by control slide
Inventor: RODE WILHELM
IPC: F03C1/03
Filed: 1974-11-20
Abstract: Thee machine has a differential piston reciprocating in a cylinder with two opposed piston surfaces of different dimensions. The connections from the chambers to the working output are controlled by a control slider that operates depending on piston position. In one end position the chamber is connected to the pressure input and at the other end position it is released to the pressureless system. The control surface are at opposite ends of the control slider. The force exerted on one or both surfaces of either pair can be adjusted. The centre part of the control slider has two recesses forming ring shaped control chambers that are connected via channels to the smaller control surfaces.
Patent DE-2455393-A1 (DE)
Title: Battery charging circuit for camera - has charge-state monitor and has constant voltage regulator connected to transformer in housing
Inventor: HAMM HUBERTUS
IPC: H02J7/00
Filed: 1974-11-22
Abstract: The battery charging circuit, for a camera, has a monitor and regulator (11, 20, 26) inside the housing (1) and connected to the transformer (3). The monitor continuously monitors the charge state of the battery and the regulator controls the charging voltage. The supply and regulator are constructed from a single integrated amplifier circuit forming a voltage regulator (11). A potentiometer (20) sets the constant voltage of the regulator voltage. The circuit has an external terminal (18) for connecting to a flash light. The housing has a horizontal plate between the transformer and the loudspeaker fixed to its side wall.
Patent DE-2501439-A1 (DE)
Title: Aligning butt joints between large cylinders - for spot welding prior to the actual welding process
Inventor: OKADA AKIRA
IPC: B23K37/053
Filed: 1975-01-15
Abstract: Aligning fixture for the pre-welding, i.e. spot or tack welding, of cylindrical workpieces prior to the actual welding process, comprises a base-plate fitted with two supports, each support carrying a lever on a pivot and the two levers swivel in the same plane. The bottom ends of the two levers are attached to two piston rods, one piston rod being mounted in each end of a hydraulic cylinder used to actuate both levers; and the upper ends of both levers are fitted with a pair of rollers employed to align the workpieces.
Patent DE-2503735-A1 (DE)
Title: Oxyalkylation of orthoboric acid - with alkylene oxides under pressure in aprotic solvent
Inventor: POMMER ERNST-HEINRICH DIPL BIO
IPC: C07F5/02
Filed: 1975-01-30
Abstract: Process for oxyalkylating orthoboric acid comprises reacting a 1-8c alkylene oxide with orthoboric acid in a mol. ratio of 5:1 to 1:1 in the presence of aprotic org. solvents, either thermally at 100-160 degrees C or in the presence of catalytic amts. of bases or Lewis acids at 70-120 degrees C in a closed system, at 4-9 bar. Prods. range from water-sol. to water insol. liq. to highly viscous prods. useful as mineral oil additives, hydraulic fluid additives and biocides. The alkylene oxide is e.g. ethylene oxide, propylene oxide, 1,2 and 2,3-butylene oxide, isobutylene oxide, styrene oxide, etc. The aprotic solvent may be polar or non-polar, e.g. acetone, dioxan, DMF, CCl4 etc.
Patent DE-2507693-A1 (DE)
Title: Threaded fixing bolt for iron fittings - has saw tooth thread and axial multiple split shaft end
IPC: E05D5/02
Filed: 1975-02-22
Abstract: The fixing bolt concerns an iron fixing element used on wood or similar materials. A cylindrical saw-toothed shaft (2) has an end which is split three or four times longitudinally, creating thereby a resilient element which yields to a certain measure during the driving-in of the shaft and leaves the inside surface of the hole in the wood more or less undamaged, so that after the final twisting of the shaft a longer part of the shaft toothing engages with the wood material.
Patent DE-2530290-A1 (DE)
Title: Xerographic copying - producing multiple copies from a single latent charge image
Inventor: KUMADA AKIO
IPC: G03G5/024
Filed: 1975-07-07
Abstract: Xerographic copying is carried out by (a) impressing in imagewise manner an external electrical field or a mechanical force no a ferro electric or induced ferroelectric material, the ferroelectric polarisation of which can be intensified by such field or force and thereby product an image from ferroelectric polarisation pattern on the surface of the material. (b) producing a change of an external electric field, a mechanical force or a heating for the temporary changing of the intensity of the ferroelectric polarisation, in order to produce an image form charge pattern on the surface of the material corresponding to the ferroelectric polarisation pattern such that a toner pattern is produced by adsorption of toner on the charge pattern. (c) transferring the toner image so obtained to a copy carrier. The process enables a large number of toner images to be produced directly from electrical signals via a single latent charge image, which itself may be produced from electrical signals without an original print out.
Patent DE-2536077-A1 (DE)
Title: Overvoltage protection system for telephone lines - has antiparallel connected semiconductors triggered by voltage peaks to give fast response time
Inventor: BAUM WALTER DIPL PHYS
IPC: H02H9/04
Filed: 1975-08-13
Abstract: The application is to the protection of telephone equipment against transient overvoltages to which overhead line in particular are susceptible. The employment of semiconductors gives faster switching time and allows setting of a lower response level. Instead of, or in parallel with, existing spark gaps (3) and gas discharge tubes (4) semiconductor elements, for example anti-parallel connected thyristors (5, 6) or a bidirectional device such as a triac are employed. The necessary triggering is provided by detecting the overvoltage between lines or from line to earth. Typically voltage dividers (7, 35, 8, 36) may be used. The holding current of the thyristors is chosen to be above the circuit current thus making the devices self extinguishing.
Patent DE-2542849-A1 (DE)
Title: Operation method for piezo-electric oscillation drive - uses actuation frequency in range above preset resonance frequency value
Inventor: GUNTERSDORFER MAX DR RER NAT
IPC: B06B1/02
Filed: 1975-09-25
Abstract: The method is for the operation of a piezo-electrically actuated oscillation drive for variable loads including operation without load. A valve is selected for the actuation frequency which lies in a frequency range above the pre-set resonance frequency value for the maximum permissible diversion of this oscillation mode. The frequency distance is chosen to ensure that with alternating voltage actuation at this actuation frequency during non load operation only the maximum permissible diversion occurs. This avoids the danger of overload through too great an oscillation amplitude when operated under nonload conditions.
Patent DE-2544143-A1 (DE)
Title: Steerable wheel for magnetically levitated vehicle - has eccentric suspension pivot and freedom for axial sliding in guide
Inventor: DUELL HANS-JUERGEN
IPC: B61F9/00
Filed: 1975-10-02
Abstract: The steerable wheel is used for supporting and guiding of a levitated vehicle. The wheel suspension system has an eccentric pivot pin for automatic adjustment in the travelling direction. The lateral deflection of the vehicle on changing the travelling direction is prevented. The wheel suspension (9) on the pivot pin (11) is able to slide axially in the direction of travel. This ensures that no forces which tend to guide the vehicle out of the track are generated when the travelling direction is changed. It also prevents contact face wear caused by sliding friction. The wheel is held on a body (9G) sliding within the housing with a slot (12) allowing axial movement. Rubber dampers (11) reduce shocks due to sliding of the wheel assembly.
Patent DE-2545492-A1 (DE)
Title: Wiring carrier with slots for holding leads - has walls with neck contours for securing individual wires in vertical stack
Inventor: KAKELBECK KONRAD ING GRAD
IPC: F16L3/223
Filed: 1975-10-10
Abstract: The wiring carrier is typically applied to relay bases where the contact wiring is located in slots. In order to secure each insulated wire with min. of force the slot (S) is contoured to produce necks (B1, B2), the number depending upon the max. number of wires (D1, D2) to be arranged in a vertical stack. The vertical distance between necks is somewhat greater than the undeformed dia. (DI) of the wire insulation. The wires are pressed into the slots by a mechanical wiring process or by hand, and are then held by the necks due to the elastic deformation of the wire insulation. To assist the wiring operation it is advantageous to have a lead in contour (ES1, ES2) to each neck.
Patent DE-2547716-A1 (DE)
Title: Small parts conveyor system - has sliding groove and spiral reversing housing with piston raising parts to incline
Inventor: TREUER JOHANN FRANZ
IPC: B65G47/14
Filed: 1975-10-24
Abstract: The screw and small parts conveyor receives the parts from a pot or a supply channel in an adjustable sliding groove (GR) and passes them on to a spiral housing (WG) which reverses the parts a piston (K) which comes from below in order to raise the usual parts and to transfer them on to an incline (SE). The spiral housing (WG) has on both left and right sides of the incline one opening each providing an outlet for any possible excess parts. The piston is fitted with a stop nose (N) to facilitate the tipping of the raised parts on to the incline and it also has two walls (W) to screen the sliding parts. The other side of the piston has an extension (V) projecting from the housing to which a swivel hammer is attached with the object to move the parts on the sliding groove.
Patent DE-2551779-A1 (DE)
Title: Flow heater for coffee machine - has heating element and water pipe curved into omega shape and together by outer sleeve
Inventor: NEIMANNS NIKOLAUS DIPL PHYS
IPC: A47J31/54
Filed: 1975-11-18
Abstract: The flow heater, for water in a coffee-making machine, holds a tubular heating element and aluminium water pipe in good thermal contact without solder. The heating element (3) and the water pipe (4) are curved into an omega shape and held together by a sleeve (2) passing around the outside of both. The side of the pipe is concave at the point where it touches the heating element to increase heat transfer area. The outer sleeve folds around the element and pipe and its overlapping ends are held together by flaps (11) engaging holes. An earthing point is provided on the sleeve.
Patent DE-2554361-A1 (DE)
Title: Motor speed control using variable pulse source - operates with frequency modulation to reduce acoustic interference
Inventor: SCHOLZ HANS-ULRICH DIPL ING
IPC: H02P7/291
Filed: 1975-12-03
Abstract: The motor (3) is supplied from a DC source by means of controlled impulses which may be of constant frequency and variable width or constant width and variable frequency or a combination of both. As the optimum frequency for the transistors in the circuit lies close to that which gives maximum audible noise from the motor frequency modulation is introduced to limit the disturbance. Modulation of the pulse frequency may be by means of a main supplied frequency multiplier or, if no AC supply is available, an auxiliary oscillator may be introduced to give the required variation. Typical modulating frequencies lie between 5% and 30% of the basic frequency.
Patent DE-2556497-A1 (DE)
Title: Seat belt uptake limiting clip - is clamped onto belt at convenient place to prevent complete rewinding for comfort
Inventor: HASENFUSS ROBERT
IPC: B60R22/19
Filed: 1975-12-16
Abstract: The clip can be fastened to the seat belt webbing in order to give a comfortable fitting of the belt over the users' body. It is used on seat belt systems with automatic belt winding mechanisms. The clip consists of two arms hinged at one end and fitted with a clasp at the other. Between the pivot and clasp there is sufficient width for the belt. The clip has a relaxed operating position which allows the belt webbing to slide through, even when the clip is attached. By pressing the two arms together, the clamping position is established with the clip sitting firmly on the belt at any selected place. In this position, the belt winds back onto the reel only as far as the clip, when it comes to rest.
Patent DE-2558146-A1 (DE)
Title: Automatically activated louvres for ventilation fan - comprising extruded plastic pins inserted in reinforced section of frame
Inventor: WEISS FERDINAND
IPC: F24F13/14
Filed: 1975-12-23
Abstract: Louvre has blades which are made of extruded plastic. They have a thickened root with a hole through it into which the hinge pins fit. The main part of the blade projects from the root in a shallow curve bowed outwards. This ensures that in the closed position there is only line contact between successive blades. The blades are held on short nylon pins which fit in to the holes in the roots. The other end of each pin fits into a recess in the side of the frame which is reinforced at this point. The blade shape, mounting arrangement and material all reduce noise caused by chatter of the blades when the fan runs at slow speed.
Patent DE-2559357-A1 (DE)
Title: Stator laminations for magnetic induction train - has hollow track sections stamped out and braced by struts
Inventor: HEIDELBERG GOETZ DIPL PHYS
IPC: H02K41/02
Filed: 1975-12-31
Abstract: The tracked ACV train is propelled and supported by magnetic fields with a stator array in the track and with electro magnetic control on the train. The stators are made from stacks of laminations braced by metal struts and bolted to the track sections. The stator packs are bolted to the track on slots so that accurate adjustment is possible to align the stators with the track and vehicle. They are produced cheaply from a simple stamping with the lamination shapes interdigitated for low material loss.
Patent DE-2601172-A1 (DE)
Title: Side channel compressor - with sound damping element fitted to fitted insert
Inventor: TANAKA TADAO DIPL ING
IPC: F04D23/00
Filed: 1976-01-14
Abstract: Side channel compressor with an insert (7) of the side channel (10) between inlet and outlet openings (5, 6) having a sound damping element (10) at least on that side of the insert facing the outlet opening (6). The sound damping element (10) is positioned inside a recess (8, 9) of the insert (7) which is open in the direction to the flywheel. The compressor is made with a formation of the insert and arrangement of the sound damping element (10) to ensure that at least a part of the latter is directly subjected to the airflow. A resonance chamber having a connection with the sound damping element is fitted in the insert (7).
Patent DE-2606385-A1 (DE)
Title: Locking screws with solid to pasty mixt. - contg. polysiloxane resin and bisphenol-based epoxide resin
Inventor: JEDLICKA HELMUT
IPC: C08L83/04
Filed: 1976-02-18
Abstract: Mixts. for locking screw connections consist of (1) 60-92 wt. % silicone resin, based on a methyl- or phenyl methyl polysiloxane, and (2) 8-40 wt. % unmodified bisphenol-based epoxide resin. Mixts. are solid to pasty at room temp. and do not harden in heat. Connection can be unscrewed and relocked, but resist dynamic twist. Connection is safely locked at -20 to +60 degrees C. Mixts. behave like melt adhesives.
Patent DE-2613082-A1 (DE)
Title: Decorative thermoplastic tile or panel - with top and bottom layers welded at edges and intermediate tensioning layer and foam layers
Inventor: LANDES JOHANN
IPC: B32B27/08
Filed: 1976-03-26
Abstract: Decorative thermoplastic plate in tile or panel form comprises a top layer, a bottom layer, and at least one intermediate layer, of which at least the top and bottom layers are welded together by a closed peripheral seam at their edges. Between the top and bottom layers is at least one tensioning layer, and between the latter and each of the top and bottom layers is a foam layer. All layers are flexible. The plate can be adhered to a substrate without additional fastening means, as pressure can be applied to all areas, partic. the edges, due to flexibility. This applies even when the substrate is uneven, e.g. walls of old buildings. The edges may e.g. be secured by adhesive strips coated on both sides.
Patent DE-2613681-A1 (DE)
Title: Remote control for vehicle door locks - has motor driven screw mechanism which pivots drive lever with rocking lever mounted on its fulcrum
IPC: E05B81/24
Filed: 1976-03-31
Abstract: Each lock is operated by a reversible electric motor and screw mechanism (2, 4, 6) which pivots a drive lever (8). A rocking lever (10, 14) which is mounted on the drive lever (8) fulcrum (9) transmits rotation to the lock. The couple may be provided by a pivotable cam plate (12) which is mounted on the lock remote arm (10) of the rocking lever. The cam plate engages (12c) a drive lever roller (13) when at neutral, is guided by pins (10a, 10b) in slots (12a, 12b) and is held in the neutral position by a double armed coil spring.
Patent DE-2616848-A1 (DE)
Title: Spectacle frames esp. for golfers - have frame with conical tubular extensions on each eye piece to restrict field of vision and assist concentration
Inventor: WEYSSER CARL DR
IPC: A61F9/02
Filed: 1976-04-15
Abstract: Golf spectacles consists of a spectacle frame (1) with frame (2) and arms (3, 4) on which are fitted tubular extensions (6) for each eye piece. These projections (6) narrow down conically away from the eye opening in such a way to make the axial direction of the projections (6) adjustable from side to side and up and down. The extensions are fitted to the frame by means of a beading which fits into a corresponding shaped groove on the frame. In another variation the extension can be made in the two parts allowing the second half to be removed and replaced by an end piece with a narrower opening. These spectacles assist the player to practice in that by narrowing the field of vision while watching the ball during each stroke the head is forced to remain still.
Patent DE-2619750-A1 (DE)
Title: (2)-acyloxy-alkane-(1)-sulphonates prepn. - by acylation of corresp. hydroxy cpd., giving pure product suitable for dental use
Inventor: HARTUNG HERBERT DIPL CHEM DR
IPC: A61K8/46
Filed: 1976-05-05
Abstract: Prepn. of 2-acyloxy-1 -alkane-sulphonates of the formula: R2COO-CH(R1)-CH2-SO3M (where R1 is 6-16C alkyl; R2 is 1-17C alkyl or phenyl; and M is a monovalent metal ion) comprises reacting the corresp. 2-hydroxy cpd. with a cpd. of formula R2COX, (in which X is halogen or a 2-18C acyloxy). Cpds. are used as their alkali metal or alkaline earth metal salts as foaming agents in products for dental and mouth hygiene. Cpds. are used in toothpastes powders, and liquids, dental chewing gums, tablets and in gargles.
Patent DE-2622760-A1 (DE)
Title: Regenerative cycle incandescent lamp contg. mercuric bromide - in amt. correlated with design parameters to avoid premature blackening
Inventor: KULKARNI AVINASH D
IPC: H01K1/50
Filed: 1976-05-21
Abstract: The lamp, having predetermined life and efficiency ratings when operated at a selected voltage, comprises (a) a sealed radiation transmissive envelope contg. a W filament, (b) conductors extending through the envelope connected to the filament, (c) an inert fill gas and (d) 13-0.46 mu mole HgBr2/ml. envelope vol. to serve as a Br2 source for a W-Br cycle when subjected to heat and radiant energy from the filament during operation. The amt. of HgBr2 initially present and the quantity of Br2 provided during operation are correlated with the design life and efficiency ratins such that initial HgBr2 and resultant Br2 contents both increase as the efficiency rating increases and the design life rating decreases. The W-Br cycle established in the lamp inhibits discolouration and enhances the useful life of the lamp. High efficiency lamps are provided which meet or exceed their performance ratings.
Patent DE-2627588-A1 (DE)
Title: Dielectric production line heating machine for prepacked food - ensures that each prepacked food container on production line attains required accurately defined temp.
Inventor: KNOBBE KARL-HEINZ
IPC: H05B6/78
Filed: 1976-06-19
Abstract: The dielectric heating or cooking unit for a prepacked food production line, handles such products as cartons of yoghourt, and uses two adjacent heating stations and a dielectric bath mounted round a conveyor line and which ensures that all the packet contents obtain a required accurately defined temp. for the necessary time. Two adjacent parallel conveyor lines (5, 5') carrying pallets (11) of packets of cartons (12) pass through a double bath (1, 3) the inner one of which (3) contains a suitable liquid of low dielectric constant (4). A horizontal array of electrodes (9, 10, 10') is excited with a suitable HF signal and this heats the packets dielectrically as they pass through this array. A second station using a UHF source and parabolic reflector (13) provides a vertical dielectric displacement current in a second station, and ensures even heating of the packets to the temp. required.
Patent DE-2628130-A1 (DE)
Title: Display gas discharge tube - features two glass panels holding mica plate with leads and joined by frit frame
Inventor: HENDRIKS ADRIANUS ANTONIUS MAR
IPC: H01J17/49
Filed: 1976-06-23
Abstract: The display for two characters uses a cathode glow of a matrix where one group includes long cathode strips set along plate anodes. The cathode strips and the anodes form a whole attached to the back glass wall and is vacuum tight. With number size of 1-2 cm, the tubes are adapted as a display for clocks or instruments and offer a long service life at a relatively low cost. Stacking of the units is facilitated by providing the pumping inlet on the grit frame. The bent over ends (9-12) of the electrode metal strips determine the spacing between the front and back glass walls, while corners (13-15) of the strips are used for clamping of the mica plate together with the lug (16) of the auxiliary anodes (27). Both the cathodes (18-24) and anodes (25/26) as well as auxiliary anodes (27) and auxiliary cathodes (28) are etched out of a CrNi steel of 0.15 mm and are mounted 0.05-0.1 mm from the rear glass wall. The getter function is ensured by 1 mg of Hg.