baber/WOPTO huggingface dataset:
Patent DE-2654450-A1 (DE)
Title: Storage material for heat and mass transfer - is silica gel granules sprayed with adhesive on heat transfer foil
Inventor: FETZER WOLFGANG DIPL PHYS DR
IPC: C09K5/14
Filed: 1976-12-01
Abstract: The storage material is used in rotary regenerative exchangers for heat and mass transfer between gas streams. The storage material used esp. for air supply or exhaust flow in air conditioned buildings, is more economical than the conventional asbestos based materials. The heat transfer surfaces consist of foils (11) woven fabric. These surfaces support or enclose silica gel granules (15) for forming mass transfer surfaces. The granules which can be held by an adhesive (13) on the foils (11), can be sprayed as mixture with adhesive on heat exchange surfaces. The amount of adhesive used in two to ten percent in total mixture.
Patent DE-2656653-A1 (DE)
Title: Temporary hydrophobic protective coating for aluminium - formed using an alkaline soln. of an aliphatic carboxylic acid (salt)
Inventor: DORSEY JUN GEOFFREY AUSTIN
IPC: C23C22/66
Filed: 1976-12-14
Abstract: A tenacious, hydrophobic coating is formed on an Al surface which is resistant to polar organic solvents by treating the surface with an alkaline soln. of pH 10 contg. a cpd. (I) which forms a long chain aliphatic carboxylate anion contg. 10-20C atoms and maintaining the surface/solution interface temp. at >60 degrees C. The soln. initially etches the surface and then forms the coating. The method can be used to provide short term protection of semi-fabricated Al products, e.g. during shipping or storage.
Patent DE-2659696-A1 (DE)
Title: Agent to improve feel of textile materials - consisting of aq. emulsion stable in storage
Inventor: HUEMUELLER EDWIN
IPC: C11D1/28
Filed: 1976-12-31
Abstract: An agent for treating textile materials in the form of an aq. emulsion which contains (a) 5-20 pref. 5-15 wt.% where R is linear or branched 10-30C pref. 12-20C alkyl or alkenyl, or a gp. of formula R'-NH-(CH2)n (where n is 2-4, and R' is as R); X+ is Na+, K+ or NH4+. The emulsion also contains (b) either 2-30 pref. 3-15 wt.% (where R1 and R2 are 1-5C alkyl; or R1 is H and R2 is 1-8C alkyl, phenyl, or (1-4C alkyl)phenyl; y and z are 6-8, and pref. y + z = 14; X is as in (I)) or 2-20 wt.% (where R3 and R4, identical or different, are branched or linear 4-8C alkyl pref. branched 8C alkyl; p is 0-4, Z is -(CH2)q-COOM,-SO3M2 or -PO3M3, (where q is 1, 2 or 3 and m is an ion of an alkaline metal or of (trialkyl)ammonium)); (c) 1-15 pref. 1-3 wt.% HO(CH2CH20)mH, where m is 100-400 pref. 100-250; and (d) 1-5 pref. 1-3 wt.% non-ionic addn. prod. of ethylene oxide as emulsifier. This agent gives the textile material a soft, supple feel, and the textile material retains good weting capacity. The agent is very stable while being stored.
Patent DE-2702752-A1 (DE)
Title: Neutralising acid resin from waste oil treatment - by gradual addn. of neutralising agent, lessening emission of odorous gas
Inventor: POHLMANN KARL FRIEDRICH
IPC: C10G19/02
Filed: 1977-01-24
Abstract: In the neutralisation of acid resins pptd. during the processing of waste oil, the acid resin is treated with a slurry of water and a basic neutralising agent, pref. CaCO3, Initially, only a part, pref. one third, of the slurry is added slowly, and the rest of the slurry is added later. The acid resin is pptd. during treatment of waste oil with H2SO4. By the slow addn. of the first part of the neutralising agent, the temp. is kept low (30-36 degrees) and gas evolution is reduced. Emission of odorous gases is better controlled. The neutralised prod. can be rejected without further washing.
Patent DE-2702872-A1 (DE)
Title: Shower spray head with water additive agents - has storage chambers for different agents selectable by turning head parts
Inventor: HELLMICH UWE
IPC: E03C1/046
Filed: 1977-01-25
Abstract: A shower spray head has one or more storage chambers for e.g. soap or perfume in crystalline, powder or liquid form. These chambers are located in the upper (1) and lower (2) parts of the head and have internal walls (4, 13) which are e.g. lamellar-like and are rotatable relative to one another between closed and open positions of which there are a maximum of three open. The lower part is removable by way of a rapid -action coupling e.g. a bayonet or a snap-closure. The various positions are indicated visually (8, 9, 10) on the outside of the head. By selecting different opening positions, different additives can be mixed with the spray water.
Patent DE-2707824-A1 (DE)
Title: Brush with swivel bristles on two plates - has recesses set in slits preventing dirt etc. from clogging guide
IPC: A46B7/02
Filed: 1977-02-23
Abstract: The brush is provided with swivel bristles (3) mounted in a plate (1) for swivel movement about parallel axes and which engage in slits of a second plate (2) by means of lever-like projections (4). These run radial to the swivel axes and are each provided on both sides with axially parallel pins (12) which engage in recesses (13) on each side of the slit (11) in the second plate (2) which takes up the projection (4). Any dirt, hairs etc. can collect in the slit whilst the actual guiding of the plates takes place via the lateral pins which are guided in the recesses in which it is difficult for the dirt to penetrate. The pins are pref. shorter than those forming the swivel axes of the bristles so that the plates and brush can be kept as flat as possible.
Patent DE-2710631-A1 (DE)
Title: Reflex light barrier with evaluation circuit - has diode bridge in parallel with light source, charge capacitor and resistor
Inventor: WEBER GUENTHER DIPL ING
IPC: G01V8/12
Filed: 1977-03-11
Abstract: A reflex light barrier has a light source (1) and a light detector (2) with an evaluation circuit (8) such as a thyristor or triac. The supply source for the light source consists of a charge capacitor (6), a pre-switched charge resistor (7) and a threshold switch circuit (8). The diode bridge is connected in parallel to the series combination of resistor (7) and capacitor (6). The threshold circuit (8) comprises a zener diode or a trigger circuit comprising of a thyristor (9) zener diode (10) and resistor (11). The light source (1) has a voltage limiting resistor (12) connected in series. The voltage source for the light detector (2) and evaluation circuit (8) consists of a capacitor (13) in series to resistor (14) with both in parallel to the diode bridge.
Patent DE-2719107-A1 (DE)
Title: Vertically interlocking masonry building block - has edge ribs and centre recess matching grooves and centre protrusion, ribs having triangular cross-section
Inventor: HABEGGER CARL
IPC: E04B2/02
Filed: 1977-04-29
Abstract: On the masonry building, one of the main contact surfaces, which are the top and bottom ones, incorporates two ribs (24), close to the sides and extending over its whole length, with an intervening full-length cut-out (26). On the opposite main contact face there are two inwards facing surfaces (28) at the sides, also full-length, with a protruding area (30) between them. These opposing faces interlock, and match each other so as to prevent sideways block movement and assist alignment. The ribs can be roughly triangular in cross-section, with a flattened apex surface, and may incorporate a sloping outside face to form a joint gap along the sides of two superimposed blocks.
Patent DE-2722902-A1 (DE)
Title: Power unit for front wheel drive vehicle - has in-line engine and transverse transmission with bevel gears receiving engine output
Inventor: ILSEMANN BERNHARD
IPC: B60K17/08
Filed: 1977-05-20
Abstract: The power unit has an in line engine with a transverse transmission in front of the engine. The drive shaft (1) from the engine passes through a clutch (2) and onto the input shaft (7) of the transmission via bevel gears. The power unit is compact and does not intrude into the passenger compartment. No transmission tunnel is required while the length of the gear box and differential can be the full width of the vehicle.
Patent DE-2728136-A1 (DE)
Title: Power cylinder unit with rapid and power stroke - has storage cylinder and uses selectable pre-determined power stroke for return stroke
Inventor: GLAS MICHAEL MAURUS
IPC: F15B15/20
Filed: 1977-06-22
Abstract: The unit has a working piston charged in the feed power stroke by a pressure, which is produced by a power transmission unit. This in turn is charged in a primary cylinder space via a pre-load valve by the pressure medium supplied to the unit in the feed power stroke. The rapid stroke piston forms an individual unit, and extends into a storage cylinder, which acts as a slide to open 2nd close passage apertures for the pressure medium from one side of the piston to the other. The working piston has a shoulder (12) projecting into the storage cylinder, to form a storage chamber (13), which decreases in volume when this moves into the closed position. The medium flows from the chamber via a control chamber into the working cylinder. The channel contains a pressure path dependent control element, to seal it, during advance of the working piston with an open storage cylinder, until the pressure in the chamber acting onto it in an opening direction, rises to a value, which is above that in the advance rapid stroke, but not high enough to open the preload valve.
Patent DE-2729004-A1 (DE)
Title: Automatic uncoupling filter presses - using pick=up device with opposed levers mounted on conveyor chain to unlatch plate
Inventor: SCHOTTEN ALFONS
IPC: B01D25/172
Filed: 1977-06-28
Abstract: Plate filter press consists of vertically mounted plates which can be supported from the top or the sides. Each plate has a rigid mounting to be acted on by a pusher mechanism and also a latch to connect it to the plate in front. The system has a conveyor device consisting of a pair of levers attached to an endless chain capable of locating either side of the mounting and moving the plate along. The pickup is pivoted on the chain as is a control lever mounted opposite to it. At least one of the levers has a spring which tends to push it down. The control element lever is at least sufficiently long to bridge two adjoining plate mountings. For side mounted plates, the pickup is a lever but the control mechanism a star wheel. Device does not add excessive height to the filter.
Patent DE-2730305-A1 (DE)
Title: Mechanism for lowering infirm person into bath - has parallelogram linkage, springs and release lever, also spring adjustment system
Inventor: MESSERLI WERNER
IPC: A61G7/10
Filed: 1977-07-05
Abstract: The mechanism enables an infirm person to lower himself into a bath. A seating surface (3) is carried by a frame with a hook shaped part (1) which fits over one edge of the bath. This is held in place by a locking screw (12) on the outside. The frame includes a parallelogram linkage with two L shaped arms (22, 23). Attached to one of these arms (22) is a swinging latch arm (4) which when operated to release the linkage, lowers the seat to the bottom of the inside of the bath, assisted by two springs (F1, F2). The latch engages a set of teeth which return the seat in its lowered position. A mechanism (31-35) under the seat enables the springs to be adjusted.
Patent DE-2730317-A1 (DE)
Title: Combined inlet and outlet valve - has temp.-dependent valve closure member enabling specified vapour pressure inside associated vacuum suction bottle to be attained
IPC: A61L2/26
Filed: 1977-07-05
Abstract: A combines inlet-outlet valve for a vacuum suction bottle for medical use enables a vapour pressure inside the bottle to be reached that corresponds to the vapour pressure in a sterilisation appts. during the vapour phase. The inlet has a temp. - dependent valve closure member. The inlet can be provided with a chamber filled with macroscopic bodies having a melting point lying between 100 and 145 degrees C. The bodies can be plastics granules. A metal layer of low melting bismuth can be installed in the chamber. The valve closure member of the outlet valve can operate to act as the closure member for the inlet valve at the same time.
Patent DE-2730772-A1 (DE)
Title: Telecommunications system with memories accessible by subscribers - transmits communication signals over analog memory chain and address signals over digital memory chain
Inventor: BARDL ARTUR
IPC: H04M9/02
Filed: 1977-07-07
Abstract: The system subscribers have at various spatial points access to memory elements grouped in a closed chain ring, along which the signals to be transmitted between the subscriber station are stepwise propagated. These signals are accompanied by the final subscriber station address, as well as by an address of at least one further memory chain. The reception of these addresses at the final station actuates output coupling of respective signals to the required subscriber station, or to the further memory chain. The signals with the accompanying addresses are transmitted over two special memory chains, i.e. the signals over an analog memory chain and the addresses over a digital one. The ring chains form part of the exchange, for which the subscriber stations are connected.
Patent DE-2745348-A1 (DE)
Title: Dialysis and ultrafiltration of blood - with control of dialysate pressure allowing measurement of small filtrate flow
Inventor: JOENSSON SVEN ANDERS
IPC: B01D61/22
Filed: 1977-10-08
Abstract: The pressure in a dialysate circuit is maintained at a constant value by a regulator controlling the dialysate pump, and the liquid flowmeter is either dual-scaled or mounted in a shunt system to permit measurement of widely differing flow rates. Used in dialysis and ultrafiltration systems, partic. for artificial kidneys where, after a high flow rate dialysis period, dialysate flow is stopped and an ultrafiltration takes place at very low flow. Performance of the overall system may be monitored by measurement of the dialysate flow rate.
Patent DE-2802390-A1 (DE)
Title: Internal tube peeling head with adjustable cutters - has internal conical plastics ring for vibration damping and cutter adjustment
Inventor: PAULS KURT
IPC: B23B5/12
Filed: 1978-01-20
Abstract: The internal peeling head has a number of radially adjustable cutters. Vibrations of the cutter are damped out by the damping properties of plastics material in stripping head. The head has an adjusting wedge (6) made of plastics. All cutters are adjusted by the conical plastics wedge ring which rests on a cylindrical internal support. The cutter holders rest against the external conical surface.
Patent DE-2805348-A1 (DE)
Title: Reading aid for invalids - consists of cassette with electrically-driven spools to display text through windows
Inventor: DAUR ULF ING GRAD
IPC: B42D19/00
Filed: 1978-02-09
Abstract: A reading aid for bed-ridden invalids consists of a cassette (2) mounted on an adjustable stand (22). The cassette (2) has a transparent window (16) and houses two spools, one above and one below the window (16). The test is printed on a strip of film which is wound on to the upper spool. a battery-driven electric motor drives the two spools so that the strip is transferred to the lower spool at at a suitable speed to allow the user to read the text which is illuminated by an internal electric lamp.
Patent DE-2808946-A1 (DE)
Title: Hot and cold water mixer unaffected by scale - operated manually or thermostatically and serviceable without dismantling
Inventor: LECHERMEIER FRANZ
IPC: F16K11/052
Filed: 1978-03-02
Abstract: A mixer for regulating the temp. of the water flowing through it, consist of a housing with inlets for cold and hot water, an outlet for the mixt., and a single means of regulating the proportions flowing through the two inlets. The regulating mechanism is unaffected by a build-up of scale and all the parts of the mechanism are readily accessible without dismantling the valve. The two inlets are side by side and open into the housing to present a seat to two valve seals. These are carried in recesses at the ends of the arms of a balance lever pivoting on a cental axis. A fork extends from the centre of the balance lever and accommodates an eccentric shaft turned by hand or a stirrup operated by a thermostat. A peg on the eccentric and two stops in the housing cover prevent the eccentric being turned too far in one direction.
Patent DE-2816240-A1 (DE)
Title: Single pole voltage probe - uses solar cells to supply indicator circuits and has resistor, diode and capacitor
Inventor: LAUERER FRIEDRICH DIPL ING
IPC: G01R19/155
Filed: 1978-04-14
Abstract: The single pole voltage probe uses the human body to complete the circuit. When the electrode (2) is touched the capacitor (5) is charged through the probe (1) and the diode (4) until the voltage dependent switch (6) conducts. The LED (8) lights up indicating the presence of a voltage. A rotor cell (7) supplies the circuit voltage and a second LED (10) indicates if the solar cell voltage is too low. A voltmeter supplied by an operational amplifier can be connected across the capacitor (5) to give a voltage reading.
Patent DE-2816356-A1 (DE)
Title: Power transformer with switched primary windings - has sliding contact connected to primary termination with insulating cover slip
Inventor: DILER HIMMET DIPL ING
IPC: H01F38/28
Filed: 1978-04-13
Abstract: The power transformer has several primary windings which can be switched into a series or parallel connection. The primary windings each have the same cross-section conductor material, switching being achieved by a single switching mechanism. The ends of each primary winding are brought out through a common insulating strip terminating in a row of switching electrodes. Contact with these is made as required by a sliding electrode connected permanently to one primary termination. The sliding electrode has an insulating cover slip which prevents access to the remaining electrodes.
Patent DE-2829675-A1 (DE)
Title: Solar heat collector - with glass tube enclosing gas permeable absorber tube as concurrent flow heat exchanger
Inventor: SIMON MICHAEL DIPL ING
IPC: F24S10/40
Filed: 1978-07-06
Abstract: A solar heat collector consists of an outer transparent tube, made of quartz glass or sapphire, with a concentric absorber tube and arranged in the focus of a solar reflector array. The absorber tube is made of a gas-permeable material such as ceramics, graphite, refractory material, or heat resistant metal. The annulus between the two tubes is closed at one end and the inner tube is closed at the other end. The working medium which enters at the open annulus thus passes through the absorber tube, from which it is extracted at the other end. The half of the absorber tube on the incidence side of the solar rays is replaced by triangular prisms so that the rays can heat the inside wall of the absorbed tube. This incident half can also be replaced by a transparent wall for the same reason. Such a collector achieves high working gas temps. by the efficient heat exchange. The collector can be produced at low cost and has a long service life.
Patent DE-2834350-A1 (DE)
Title: Domestic appliance program indicating device - has display which shows what step is running and which steps remain
Inventor: MAIER GERHARD
IPC: D06F34/32
Filed: 1978-08-04
Abstract: The domestic appliance (H) has a program display panel (T) having visual display elements (E) each corresponding to a step in the program. The program is selected usign a keyboard (P) and the program controller (ST) activates all the elements (E). As the program runs, the controller (ST) deactivates the elements (E) in succession as the corresponding steps are complteted. The initial display shows what steps form the program and during operation the display shows what step is currently running and what steps remain. The final element may remain activated when the program ends.
Patent DE-2835816-A1 (DE)
Title: Rotary piston pump outwardly loads seal strips - by outlet pressure during part-revolution via ducts throttle-connected to inlet pressure
Inventor: MERZ JOHANN ING GRAD
IPC: F01C21/08
Filed: 1978-08-16
Abstract: The rotary piston pump has a cam ring (6) engaged by seal strips (3) in slots in the rotor (2) and inner chambers (7) at the radially inner ends of the slots receiving pressurised oil via a pressurising valve (17) on a ported pressure plate (9). The outlet chambers (4) in the plate (9) connect with the chambers via recesses (15) covered by a spring-loaded disc (17). The rotor-facing side of the plate has part-annular recesses (10, 11) adjacent to the inlet and outlet (4) chambers. The recesses (11) near the outlet chambers are connected with those near the inlet chambers (10) via throttle openings.
Patent DE-2836208-A1 (DE)
Title: Tobacco compsns. contg. benzaldehyde di:methyl propane diol acetal - which is also useful in food flavouring
Inventor: KULKA KURT
IPC: A23L27/28
Filed: 1978-08-18
Abstract: Tobacco compsns. are claimed contg. the 2,2-dimethyl propane diol acetal of 3-ethoxy-4-hydroxy-benzaldehyde (I). (I) has a reduced vanilla flavour compared to ethyl vanillin, and a chocolate note. It is readily soluble in ethyl alcohol and propylene glycol and is easy to incorporate. In an example, 20 ml. of 5% soln. of (I) in propylene glycol was sprayed onto 1000 g. of pipe tobacco in a rotating drum. After 2 weeks storage, the mixt. on smoking had a sweet mild taste with a chocolate aroma.
Patent DE-2842485-A1 (DE)
Title: Novelty lighting device using light guide fibres - has lamp behind fibre bundle between mirrors with randomly distributed tips
Inventor: HOCHMUTH WOLFGANG DIPL KFM
IPC: F21S10/00
Filed: 1978-09-29
Abstract: The novelty lighting device using a light guide fibre bundle (1) has a housing whose front gives the visual effect. Inside is a chamber between a rear mirror (3) and a front mirror (9) which is partly transparent. Both mirrors may be plane or curved, and the fibre bundle is positioned between them. The bundle spreads out from the centre of the rear mirror, with a light source at the connection point (2), to the front mirror, where the tips are distributed in the random manner over its inside surface. The light source consists of a lamp (4) with a lens (5) and a mirror (6) forming beam directed onto the fibre bundle. Coloured discs can be rotated in front of the light source, and can be interposed in a random manner. Further illuminated devices (11) can be mounted around the periphery of the front face.
Patent DE-2843340-A1 (DE)
Title: Actuation mechanism for cassette recorder - has operating keys mechanically interlocked with cassette and employs interlock bar to control mechanism
Inventor: ITO SATOSHI
IPC: G11B15/675
Filed: 1978-10-04
Abstract: A magnetic tape cassette is designed with an interlock facility that only permits operation when a casette is in position. The four keys (40 to 43) for the selection of fast forward, and reverse, play and stop-eject operate against an interlock bar (50) behind the keyboard. Each contacts teh bar on a tapered slot section (51). Whether or not the keys are allowed to operate depends upon the interlock bar (50) moving relative to the main interlock mechanism (200). The interlock mechanism is designed to prevent movement in the absence of a cassette.
Patent DE-2856554-A1 (DE)
Title: Process gas mfr. - in shaft furnace by carbonising, gasifying and cracking
Inventor: ZERBIN WALTER OTTO ING GRAD
IPC: B01J19/14
Filed: 1978-12-28
Abstract: A gas for use as a protective atmos. for furnaces, as a carrier gas or drying gas, is produced from bales of straw, peat etc. in a gas producer in which the fuel is carbonised, gasified and partly burnt. The gas fractions are mixed, brought to a cranking temp. and combined to one common gas stream. The pref. gas producer is a Y-pipe shaft furnace for bales of straw. Such a gas producer supplies large quantities of gas for protective purposes or as carrier or heating gas with a much smaller technical effort.