baber/WOPTO huggingface dataset:
Patent DE-2433653-A1 (DE)
Title: Treatment of fluids with acoustic waves - for emulsification, degassing, homogenising and use as cleaning agents
Inventor: BURKE PATRICK
IPC: B05B17/06
Filed: 1974-07-12
Abstract: Process and appts. for treating liquids, e.g. degassing, or homogenising, dispersing solids in them or using them as cleaning agents, consists of forcing the liquid under pressure through a device consisting essentially of two parts. The first part consists of a cylindrical chamber in which liquid, pumped in at one end is directed so that the flow becomes tangential at the other end inducing turbulence. The second part consists of a cylindrical chamber, aligned with, and of smaller diameter than, the first. Fluid from the first chamber enters the second chamber tangentially. The flow rate and pressure are regulated so that acoustic waves are created in the second chamber producing cavitation in the liquid leaving it. The device or several of them, may be installed in a tank contg. liquid, so that the liquid is agitated and cavitated by the acoustic waves. Articles suspended in the tank can thus be efficiently cleaned, particularly, metal articles before chromium plating. The device may be incorporated in a hand operated tool fitted with a nozzle.
Patent DE-2435585-A1 (DE)
Title: Circular saw guide roller - has annular groove in cover surfaces with opposing aperture in roller housing
Inventor: ZAISER ADOLF
IPC: B23D47/12
Filed: 1974-07-24
Abstract: Guide roller for circular saws with a cover surface in contact with the ring-shaped saw blade, and a housing carrying the roller itself. The cover surface (2', 4') of the guide roller (2, 4) has at least one indentation (14) in the form of a ring groove. This ring groove (14) has a semi-circular cross section. The guide roller (4) housing (1) has an aperture (15) counterposed to the circular path of the cover surface (4') ring groove (14). The roller material (2, 3, 4, 5) is of laminated cloth with an addition of cresol resin.
Patent DE-2437740-A1 (DE)
Title: Measurement of settlements occurring in the earth - with hose of non-magnetic material introduced into earth
Inventor: JONELL PER OLOF
IPC: G01B7/24
Filed: 1974-08-06
Abstract: The hose is equipped on its outside with rings of iron or another magnetic material, whose position at any given time is detected by means of a probe lowered down inside the hose. The probe has a system of electrical coils on iron cores, at least one of the coils being traversed by alternating current which generates an alternating magnetic flux. This flux induces in the other coils alternating voltages, so that when the iron ring in question is in a certain position in relation to the coil system voltages of equal amount are induced in two coils or groups of coils.
Patent DE-2441658-A1 (DE)
Title: Flat embroidery adjustment mechanism - has a simultaneous and synchronised infinitely variable setting for needles and shuttles
Inventor: REICH RUDOLF
IPC: D05C3/04
Filed: 1974-08-30
Abstract: An embroidery machine, esp. a flat embroidery machine, has an adjustment for the positioning of the needles on one side of the fabric and the shuttle on the other side, simultaneously and synchronously, individually or in groups or over the total embroidery operation. The design eliminates the time taken for individual adjustment of the embroidery components, as the needles must enter the shuttles accurately, increasing the range of patterns which can be executed, simplifying the pattern control system, and increasing the operating speed and productivity.
Patent DE-2442530-A1 (DE)
Title: Contact plate for mass transfer columns - esp distn., rectification and absorption columns working under vacuum
Inventor: BURIN WIKTOR LEONTJEWITSCH
IPC: B01D3/16
Filed: 1974-09-05
Abstract: On a contact plate for mass transfer equipment, having openings through which a gas can flow covered by valves (cover-plates) fitted with means to limit their movement, the part of the valves covering the openings extends from the openings and are curved so that they have a cylindrical form in cross-section. The convex side of the curved surface is turned towards the plate so that the valves begin to open by rolling of the surface over the plate. The closing moment on the valve increases as it opens, so that stable operation over a wide range of loadings is achieved. The valve has a low press. loss in the just-open as well as the fully open position, making it suitable for operations carried out under vacuum.
Patent DE-2443197-A1 (DE)
Title: Leather softening machine - with horiz. roller pair pulling half a hide through vertical treatment zone
IPC: C14B1/40
Filed: 1974-09-10
Abstract: A machine to make tanned hides pliable and soft consists of stationary tools with rounded ribs, faced by movable tools with ribs facing the gaps between the ribs of the former. Both sets of tools are arranged vertically, with a vertical treatment zone between them. A pair of driven rolls at the top end of the zone is used to pass the leather through the treatment zone. This machine treats only half a hide at a time but is simple, attractive in price and has a good productivity. No elastic horizontal transporting belt is needed; it includes no quickly wearing parts and saves having to smooth a horizontal hide.
Patent DE-2457311-A1 (DE)
Title: Conveyor for crops esp. beet leaves - has two continuous chains running round guide wheels with tines
Inventor: BLEINROTH HEINRICH
IPC: A01D23/06
Filed: 1974-12-04
Abstract: The chains consisting of chain links and studs runover two guide wheels. Tines are immovable fixed on the studs on the chain links and elastic plates are immovably fixed onto other studs on the links. The backwards facing sides of the plates have slits through which the tines can pass. The first and second studs alternate. The front end of the plate is fixed to the stud. The space between two studs is less than a certain length of the plate. Without using an additional drive or peeling-off roller this conveyor can project the delivered harvested product upwards at the highest turning point.
Patent DE-2460081-A1 (DE)
Title: Workpiece support clamping jaws - are two-part construction with connecting inclined surfaces, and recess and projection engagement
Inventor: HEISEL ALOIS
IPC: B23B31/16
Filed: 1974-12-19
Abstract: Clamping jaws for the support of workpieces, particularly top jaws for chucks, each jaw being composed of two parts displaceable counterwise to each other. The two jaw parts (11, 12) are guided in a circumferential direction adjustably and counterwise, and are connected via one or more inclined surfaces running in the circumferential direction and sloping towards the adjustment axis of the jaw (1), or by means of circular arc-shaped eccentric surfaces. Between the two jar parts (11, 12) inclined surfaces, (13) a machined-in recess (15) is formed which runs inclined in a circumferential direction, and is T-shaped, L-shaped, swan neck-shaped or circular, which is in one of the jaw parts, and enables engagement with the other jaw part by means of a correspondingly shaped projection (16).
Patent DE-2461834-A1 (DE)
Title: Plastic tube container with welded on cap and nozzle - used by depressing a plunger from the back
Inventor: MANEN DICK T VAN
IPC: B29C67/00
Filed: 1974-12-30
Abstract: A tubular container, used by depressing a plunger from the back, is made by extruding a constant-section plastic tube and cutting off cleanly into lengths, injection moulding one-piece plastic caps and nozzles, and fitting and welding these on alternately in correct alignment on to the tube lengths. Smooth attractive appearance, good sealing and stability, and accurate dimensions are obtd.
Patent DE-2462420-A1 (DE)
Title: Steering column switch for motor vehicle - has large number of switch actions and uses reduced number of parts
Inventor: MUTSCHLER ERICH
IPC: B60Q1/42
Filed: 1974-11-12
Abstract: The steering column switch, for a motor vehicle, has the same number of switching operations as similar devices but fewer parts. A pivoted switching arm moves over sprung ratchet elements on a switching curve fixed inside the housing. The switching arm, pivoted in the housing, accepts spring-loaded contact bolts that come into contact with contact plugs during switching. The contact bolts are made in two parts, and each part has a T-shaped cross-section. The bolt parts have recesses through which the force vector of the spring runs.
Patent DE-2504883-A1 (DE)
Title: Multiwalled tubing production - by spirally winding layers of elastic tubing on to hollow cylinders
Inventor: SCHLEICH JOSEF DIPL ING
IPC: F16L9/18
Filed: 1975-02-06
Abstract: Multi-walled tubes are made from elastic continuous tubing by winding several layers of plastic (e.g. PVC) or steel tubing spirally round a cylindrical hollow mandrel and bonding or welding them together during or after the winding. Tubes obtd. have wider application and are simpler and cheaper to produce than parent patent.
Patent DE-2505667-A1 (DE)
Title: Tool set for multiple stamping - using interchangeable pressure pads to actuate punches in accordance with a program
IPC: B26F1/04
Filed: 1975-02-11
Abstract: Tool set for stamping or punching, with which the punches can be used in accordance with a desired pattern, includes the use of a punch holder plate (I) through which the punches slide, pref. passing through a spring-mounted stripper plate, and behind plate (I) is a program plate provided with pressure pads and/or cavities employed to operate a set of punches to suit the product being made. The program plate is pref. mounted on an upper carrier mounted on vertical guide pillars located in a lower carrier fitted with dies which mate with the punches and provided with an ejection device for the stamped workpiece. One tool set can be employed for stamping a wide variety of parts.
Patent DE-2513939-A1 (DE)
Title: Fencing or balustrade versalite bars capping units - is made from pieces of rubber fixed with adhesive
IPC: E04F11/18
Filed: 1975-03-29
Abstract: The capping unit is for use in covering the tops of 'Versalite' bars as employed in the construction of enclosure fencing and balustrades of all types, the purpose being to effect a rapid and clean terminal sealing, usually involving the mixture of two plastics, applied as a paste and then worked after setting hard. Here the capping units are made out of a piece of rubber, according to the width of the bars, and they are then fixed in place with the aid of an adhesive. The process is simplified the finished appearance is improved, and no skilled labour is needed.
Patent DE-2517236-A1 (DE)
Title: Cooling medium heating system for IC engines - heat exchange unit has expansion element to separate heat exchange chambers
Inventor: LEITERMANN WULF DIPL ING
IPC: F02N19/10
Filed: 1975-04-18
Abstract: The heat exchange unit is connected by two flanges to the exhaust pipe and consists of two chambers whose conacting surfaces are pressed together by a spring to give a good heat transfer. Exhaust gases flow through the first chamber and water from the engine cooling system flows through the second chamber. The water chamber is pivoted to the exhaust gas chamber by a bolt on one side and the opposite side is provided with a heat dependent expansion unit whose actuating peg terminates as a point supporting itself against the exhaust chamber base. When the cooling medium reaches working temperature, the expansion unit pressure exceeds that of the spring pressure and the water containing chamber pivots away from the exhaust gas chamber.
Patent DE-2522268-A1 (DE)
Title: Electronic engine temperature-independent mixture preparation - thermostatically controls mixture-producing components of carburettor
IPC: F02M31/00
Filed: 1975-05-20
Abstract: The electronic carburettor mechanism for combustion engines is intended to provide optimum mixture formation independently of the engine temperature so as to eliminate the need for choking during engine start- up. It comprises an electronically stabilised, surface- active, thermostatic control of those components of the carburettor which directly affects the formation of the fuel/air mixture. This is achieved by an electronic circuit which controls pre-heating means for the air intake and heating/cooking means for the mixture. The means may comprise ferro-electric conductors, preferably seeded ceramic titanium elements, which, at the same time, act as automatic excess-current protection.
Patent DE-2523386-A1 (DE)
Title: DC motor without commutator with cylindrical air gap - has permanent magnet rotor inside or outside machine
Inventor: MUELLER ROLF DIPL ING DR ING
IPC: H02K29/08
Filed: 1975-05-27
Abstract: The rotor can be inside or outside the machine which has a winding generating a driving torque with gaps, and means for magnetic energy storage to overcome these torque gaps. The angle of the rotor rotation, in which the elctromagnetic torque is applied to the rotor, coincides with an angle beta in which gaps between poles pass areas of decreasing air-gap. The angle of rotor rotation, in which no torque is applied to it, coincides with an angle delta, in which the gaps between poles pass an area with increasing air-gap. The active stator windings are placed in the angle delta area.
Patent DE-2523608-A1 (DE)
Title: Cigarette paper perforator using electrical spark discharges - produces constant number of holes per unit area at different paper web speeds
Inventor: RAUCH WALTER DIPL ING
IPC: B26F1/28
Filed: 1975-05-28
Abstract: The perforating unit for cigarette paper employs electrical spark discharges to effect the perforation. An impulse transformer (6) has a low input inductivity and produces through differentiation alternately positive and negative needle impulses of high voltage from a square-wave voltage with a frequency proportional to the speed of the paper web (9) which is to be perforated. The complete system comprises a tachometer- dynamo (1) coupled to a shaft which rotates at a speed proportional to the paper speed. The speed-related direct current so generated is stepped down as necessary by a voltage divider according to the required number of perforations per unit area. A voltage-frequency converter (3) produces a voltage-proportional frequency which is fed via a preamplifier (4) to a power amplifier (5) and the impulse transformer (6). In this way a constant number of perforations is produced per unit area at different paper web speeds.
Patent DE-2530756-A1 (DE)
Title: Adjustable concreting formwork for tunnel wall and ceiling - with roller on base end of hoist mechanisms below forms sections
Inventor: CANTIE HENRIC DESIRE
IPC: E04G11/02
Filed: 1975-07-10
Abstract: The tunnel formwork assembly simultaneously casts two walls and a ceiling in structures with two or more separable sections, each having a complete vertical wall form panel, and a horizontal part form panel, attached to its top end. The two, or more, adjustable hoist devices (10), at the lower end of each section, are fitted with a roller (13) on each, the end which is in contact with the ground. The hoist devices may be connected to their sections (1, 2) so as to be able to swivel about a vertical axis. This permits correction for positioning to take place even when the form is raised.
Patent DE-2532114-A1 (DE)
Title: Monitoring device for three-phase power transmission - has three-phase transformers and common armature
Inventor: FIORENTZIS MICHAEL DIPL ING
IPC: H02H7/045
Filed: 1975-07-18
Abstract: A monitoring system for three phase power transmission has a rotary field generator (4) with two rotary field inductors (5,6) each with a polyphase winding (5a,6a). An armature (7) magnetically coupled with the inductors (5,6) has at least one winding (7a). A first rotary field inductor (5) winding (5a) is connected to primary terminals (R,S,T) of the transmission system (1), and second inductor (6) winding (6a) to its secondary terminals (U,V.W). The output of the armature winding (7a) is connected to the monitoring device output (8) carrying a signal depending on the transmission system (1) transfer factor.
Patent DE-2533554-A1 (DE)
Title: Feeder for fine powders used for gas-solid aerosols - with rotating brush prosecting the particles into an air stream
Inventor: ZAHRADNICEK ALES DIPL ING
IPC: B05B7/14
Filed: 1975-07-26
Abstract: In a solids feeder a cylindrical solids container has an axially moving piston which moves from one end, and at the ohter end a rotating brush with its axis at right angles to that of the container. Movement of the piston pushes the solid into the path of the rotating brush which sweeps it into a stream of air. Pref. the peripheral velocity of the brush is at least 100 times the linear velocity of the piston. The top of the piston has the same contour as the brush surface so that there is minimal dead space. Cf conventional feeders, which may be rotary valves, screws, vibrators etc. the device described has higher accuracy over a wide range of powder particle size, gives low loss of powder and is unaffected by the presence of agglomerates in the powder.
Patent DE-2534332-A1 (DE)
Title: Braked shopping trolley for escalator - with brake strips underneath and automatic braking wedges operating direct on tyre when tilted
Inventor: EWALD DIETER ING GRAD
IPC: B62B5/02
Filed: 1975-08-01
Abstract: The underside of the shopping trolley has brake strips running lengthwise along each side. The strips have semicircular grooves which grip the edges of the stair treads on the escalator and prevent the trolley from moving. The rear wheels have a padded brake wedge extending rearwards to operate a flexible mudguard brake on the rear wheels if the trolley is tilted to rest with its rear wedges on the treads. The front wheel has an angled deflector in front of it to operate a front wheel brake is tilted downwards on the escalator. The trolley is securely held on the escalator for moving up or down, no matter how much is loaded in it.
Patent DE-2536848-A1 (DE)
Title: Temp. dependent timer for diesel engine preglow period - has part of RC element resistor in parallel to matching transistor switching path
Inventor: HOFER WALTER
IPC: H01H47/26
Filed: 1975-08-19
Abstract: The temperature dependent timing switch has a RC element with a connected threshold switching element and a NTC resistor, forming a part of a voltage divider. The tap of the latter is connected to the base of a control transistor, which affects the time constant of the RC element. A switching path of a matching transistor (23) is in parallel with at least a part of the resitor (19a, 19b) forming the RC element (17). The transistor base is connected to a part (13) of the voltage divider (12). Preferably the switching path of the control transistor (20) is incorporated between the resistor and the capacitor (18) of the RC element.
Patent DE-2541652-A1 (DE)
Title: Button sorting and delivery - has a structured outlet from button magazine to allow through a pre-set chord height and shape
IPC: D05B3/22
Filed: 1975-09-16
Abstract: An appts. for the sorting and delivery of button to a button-sewing machine, has a feed scoop made of a flexible material with concave blades. The adjustable gap between the upper edge of the scoop and the bottom surface of the button magazine is always smaller than the chord height of the convex shell surface of the button. The aperture of the button magazine for the delivery of the button is a gap with an adjustable chord height from the lower plane as the base of the magazine and an upper plate which can be positioned at will. A drop chute carries the button from the base level of the magazine to a reception point where studs pass through the button's holes to be positioned for sewing. The design simplifies the sorting and delivery of buttons, the structured chord height of the magazine outlet ensuring that the button is the right side up as an inverted button should not pass through.
Patent DE-2542553-A1 (DE)
Title: Electro-acoustic surface wave filter - produces sideband suppression directly proportional to number of series connected filter elements
Inventor: HAYDL WILLIAM DR ING
IPC: H03H9/64
Filed: 1975-09-24
Abstract: A method for sideband suppression uses acoustic surface wave resonators, with a number of reflectors (2, 3) for surface waves mounted on a substrate (1) at half wave-length spacing, and with input and output transducers (4, 5). In order to increase the attenuation of the sidebands relative to the main resonance frequency, two or more filters are connected in series. If m resonators are in series, the side band attenuation is improved by a factor m. With two resonators a sideband suppression improved from 30 to 50 dB was achieved in tests, with a transmission loss of the main resonance increased from 8 to 20 dB.
Patent DE-2545253-A1 (DE)
Title: Pressure and heat resistant conveyor belts - contain several fibres and a binder which is heat and pressure resistant
Inventor: SCHREUS THEO
IPC: C04B26/02
Filed: 1975-10-09
Abstract: The conveyor belt or mould liners is made by forming yarns into flat strips and together with binders these are subjected to heat and pressure which is greater than anything that will be experienced later. Some of the fibres listed are aramide and glass and the binder is a polytetrafluoroethylene.
Patent DE-2549693-A1 (DE)
Title: Ski deflector and vibration damper - is asymmetrical pyramid of flexible plastic fixed to front end of skis
Inventor: EISELE KARL
IPC: A63C5/075
Filed: 1975-11-06
Abstract: The deflector is made in two parts, a square base plate stuck or screwed to the ski, and a hollow plastic cap (2) held to the base plate by a screw (3). This screw has a coin-sized slot, so that the cap can be removed for packing the skis. The cap has no openings for ski or ski-stick to catch in. Its inner side is steep and ribbed (2a); the other sides have gentler slopes and are smooth. A> well as keeping the skis from getting crossed, the deflectors act as vibration dampers in fast skiing by means of an energy-absorbing rubber collar placed under the head of each fastening screw (3). The unit is designed for injection moulding in plastic.
Patent DE-2552170-A1 (DE)
Title: Transverse beam with two flat measurement springs - arranged in parallel and with strain gauges on opposite sides
Inventor: KLAEMT JOACHIM ING GRAD
IPC: G01L1/22
Filed: 1975-11-21
Abstract: Constants of the two springs (21, 22) are the same, and the springs are joined together at one end by a mounting block and by a block at the other end. Force to be measured is applied in a direction perpendicular to the plane of the springs. The springs form, under this force pressure, an S shape. At least one further measurement spring (23, 24) is provided between the two springs (21, 22) carrying the strain gauges (26-29). It is mechanically parallel to the outer springs. The measurement springs are symmetrical to the longitudinal centre plane (11) perpendicular to the force direction of application.
Patent DE-2554108-A1 (DE)
Title: Automatically replenished trough for plants - has water reservoir which holds several weeks supply
Inventor: BUNGARD HEINZ DIPL ING
IPC: A01G31/02
Filed: 1975-12-02
Abstract: The trough in which the plants may be growing hydroponically is double walled. The water level within the trough is maintained by replenishment from a reservoir (4) within the double wall. Replenishment may be controlled by a ball valve. The reservoir may be a closed vessel whose only opening is into the trough at the required water level. When the water level in the trough falls below the outlet, air can enter the reservoir, and water can leave it, until the outlet is covered again. Provision is then made for blocking the outlet when the reservoir is opened for filling.