baber/WOPTO huggingface dataset:
Patent DE-2531766-A1 (DE)
Title: Continuous injection intake air operated fuel control - by valve acting against fuel pressure controlled by valve in fuel return line
Inventor: PETERS KLAUS-JUERGEN
IPC: F02M69/22
Filed: 1975-07-16
Abstract: The arrangement is for an i.c. engine operating on fuel mixture continuously injected in the air intake and has an air flow sensor and a throttle in the intake which sensor actuates against a variable force to operate a valve element in a fuel flow control valve. The force is provided by fuel pressure which is varied by a control valve containing a piston actuated as a function of the pressure downstream of the fuel pump against a spring. The piston operates a sheet-off valve in the fuel return flow line to the suction side of the fuel pump, and all fuel return lines connect into the return flow line upstream of the shut-off valve.
Patent DE-2533099-A1 (DE)
Title: Flow type power installation using ambient air - has tube with throttle and inner double cone with turbine in narrowest section and heat exchanger at wide end
Inventor: SCHREINER ERNST
IPC: F02C1/00
Filed: 1975-07-24
Abstract: The flow technique power installation is for utilisation of low thermodynamic potentials and involves a conduit through which thermic energy from the work medium is impelled by a blower and converted into kinetic energy for use as work power. The work medium is low temp. air, pref. ambient air, and the conversion into kinetic energy occurs in the converging part of a convergent/divergent running tube. The convergent/divergent passage is created by throttle formation within the tube and an inner double cone. A turbine is fitted in the region of the narrowest cross-section. At the end of the divergent part of the tube a heat exchanger is fitted and warmed work medium in the exchanger is fed back to the blower, and recycled.
Patent DE-2541395-A1 (DE)
Title: Asynchronous cage type motor of variable speed - has additional conductors joining bar extensions short circuited by resistance ring
IPC: H02K17/16
Filed: 1975-09-17
Abstract: The asynchronous motor is used in variable speed drives, esp. such that operate down to very low speeds. Losses in the cage resistance due to temp. rise can be overcome by placing a resistive end ring outside the motor frame. The active rotor core (4) carries high conductivity conductor bars (8) short circuited at one end with a conventional end ring (6). At the opposite end, each bar is joined to a conductor (11) which leads out of the housing, typically under a bearing seat (17). On the outboard side, the additional conductors join continuations (9) of the bars which are short circuited by a resistance ring (12). The resistance ring may be made of a conducting powder such that the resistance changes with speed due to the compressive centrifugal forces compacting the powder grains.
Patent DE-2544026-A1 (DE)
Title: Electrically heated cooking pan - has windings on the wall of the pan spot:welded to ensure permanent earthing
IPC: A47J27/00
Filed: 1975-10-02
Abstract: The pan has a flange on the top edge of an insulating jacket in which the pan is held. The power of the heating winding (s) is between 10 and 100 W/litre of pan capacity. The jacket surrounds the pan walls and bottom with a gap in which reflectors facing the pan wall are provided. Each heating winding consists of a metal coating around the pan firmly held in the jacket. It carries heating conductors on the side not facing the pan, and a corrugated metal cover over them. The cover is spot-welded to the metal coating, and reflectors have pressed-out projections which are the only connections of the cover with the insulating jacket.
Patent DE-2556901-A1 (DE)
Title: Bridged bis-(4,6-dialkyl phenol) prodn - from phenol reacted with excess acetal
Inventor: GURVITSCH JAKOV ABRAMOVITSCH
IPC: C07C37/11
Filed: 1975-12-17
Abstract: Bridged bis(4,6-dialkylphenol)cpds. (I) are produced by reaction of 2,4-dialkylphenols with excess acetal in presence of acid catalyst. (I) are stabilisers for polymers. Process gives high yields (97-98%), is simple does not require water in reaction medium and avoids pollution.
Patent DE-2558943-A1 (DE)
Title: Hydraulic press for materials strength testing - has initial low loading with progressive increase using rotating valve and has knife edge loading system
Inventor: SIEKE HELMUT DIPL ING
IPC: G01N3/32
Filed: 1975-12-29
Abstract: The materials strength testing equipment uses progressively increasing pseudo-dynamic loading of the specimen which produces a more rapid evaluation of material fatigue strength than is possible by a purely static load measurement. The item under test (3) is supported at some point along its length by a knife-edge (2) on the bed of the machine and by a stop (2) at one end. The free end of the test specimen is subjected to downward pressure by a hydraulically-operated ram (4). A bending force is thus applied to the test piece. Oil pressure supplied to the press from a pump (7) is not fed directly but via a rotating valve (9,10). The valve consists of a cylinder supplied with oil and a slotted, rotating piston connected to the press so that a pulsating, increasing force is applied to the test piece.
Patent DE-2601505-A1 (DE)
Title: Railway junction points electric heating element - has fixing shackle with arched extension on rail foot clamp shank pressing against heater
Inventor: HILLINGER ERICH
IPC: E01B7/24
Filed: 1976-01-16
Abstract: The resilient fixture loop shackle is esp. suitable for use with electric heating devices in the form of bars of elements fitted to parts of rails in junction points. It resiliently grips the rail foot, while its open end presses the heating device against the rail. There is a horizontal clamping shank (1) extended, in its centre part (9) and gripping the rail foot (F) on both sides, leaving no interval. On one side this is prolonged into an upwards arched pressure shank (2), the open end (3) of which provides the pressure face (7) for the heating device (H). In the transitional area between the two shanks there may be a cam-shaped recess, fitting with a supporting action against the upper side of the rail foot.
Patent DE-2605738-A1 (DE)
Title: Dual combustion chamber for IC engine - has separate initial combustion chamber contg. sparking plug with tangential inlet to main chamber (BR 1.2.77)
Inventor: LATSCH REINHARD DIPL ING DR
IPC: F02B75/12
Filed: 1976-02-13
Abstract: Cylinder head has an ignition chamber (8) which receives a weak air fuel mixture during the compression stroke via a transfer channel (7). The transfer channel joins the ignition chamber at a tangent to produce a systematic turbulence flow along the ignition chamber wall region (9) past the ignition electrodes. A complete mixture between the fresh charge and the hot gas residue from the previous combustion takes place which is readily ignited by the high tension spark. The resulting flame travels along the transfer channel (7) to ignite the weak air fuel mixture in the main combustion chamber. The compression chamber volume in relation to the ignition compression chamber volume is 5 and pref. between 10 and 20.
Patent DE-2613329-A1 (DE)
Title: Unit consisting of two automatic pouring out balances - controls goods feed rate alternately for two balances between high and low speed and stop
Inventor: SCHWAKE PAUL
IPC: G01G13/295
Filed: 1976-03-29
Abstract: The pair of balances weighs powdery, gritty or granular goods. Each balance has a goods feeder, weighing receptacle and a weight pick-up. The balances (1, 2) are connected with each other through an electronic control unit (4) by which the goods flow, directed by a distributor (3), is run at a high speed, a low speed and is stopped, at different times for the two balances. The stopping time is corrected after a calming period during waiting time. At the end of slow run for one balance fast run for the other is started, and the electronic control unit (4) is switched to the other balance after calming period and waiting time of the first.
Patent DE-2614733-A1 (DE)
Title: Uniform exposure single blade shutter - has pivot location and aperture shape modified to achieve uniform exposure over field of image
Inventor: WEIDENBACH WILLY
IPC: G03B9/10
Filed: 1976-04-06
Abstract: A single bladed photographic shutter is suitable for incorporation in the limited space of miniature cameras. It has a drive element (7) released by the exposure control to run against the shutter blade (1) to pivot it about its bearing (5), after which it is returned by a spring (6) to its original setting against the stop (4). The leading edge (1a) of the blade is close to the aperture (3) to increase the angle swept by the edge and increase the exposure of the part of the image field given the least exposure by the action of the shutter. In the area of the longest opening of the shutter there is a reduction (3a) in the aperture so that the area given maximum exposure is reduced. The overall effect is to reduce the non-homogeneity of exposure over the image field natural to the action of a single blade shutter.
Patent DE-2627322-A1 (DE)
Title: Removal of chlorine cpds. from tar - by contact with hot dilute sulphuric acid
Inventor: JANSEN JOHANN
IPC: C10C1/20
Filed: 1976-06-18
Abstract: Removal of chlorides and Cl cpds. from tar (esp. from coke ovens) is effected by homogenising the tar (largely dehydrated) at 70-100 degrees C. with a 0.01-1% aq. H2SO4 soln. at 70-100 degrees C. in a ratio of tar to aq. H2SO4 of 1-10:1 (pref. 4-6:1). The mixt. is then heated to boiling, cooled, and the purified tar phase sepd. from the phenol-contg. H2SO4 phase, which is opt. partially recycled. Organic Cl cpds. are removed as well as NH4Cl. The concn. of the H2SO4 soln. is pref. 0.03-0.07%, and the mixing temp. is pref. 80-90 degrees C. The mixt. is pref. boiled for 2-10 min.
Patent DE-2629305-A1 (DE)
Title: Treatment of wet radioactive wastes for disposal - by mixing with liq. resin compsns. and solidifying
Inventor: GABLIN KENNETH ALLEN
IPC: G21F9/16
Filed: 1976-06-30
Abstract: Wet radioactive wastes are treated to make them safe for dumping, by mixing with a liq. resin and sufficient catalyst to cause the whole mass to solidify. The radioactive material is pref. in water as carrier, and sufficient resin, pref. of area-formaldehyde type, is used to take up all the water and retain it in the solidified mass. Used for disposal of waste from nuclear power stations intended for storage, burying or sinking at sea, e.g. contaminated coolant water. The waste is immobilised and harmful radiation, e.g. hard gamma-rays, is reduced. Wt. of the solidified blocks is less than those made from Portland cement, handling of the liq. resin is easier and the process is suitable for wastes contg. boron, which is incompatible with concrete.
Patent DE-2632555-A1 (DE)
Title: Hand-operated cable brake for skateboard - has cable connected to brake-shoe lever pivoting on column carrying wheel bearing housing
Inventor: PRADE ERNSTFRIED
IPC: A63C17/00
Filed: 1976-07-20
Abstract: The skate-board (1) is provided with a brake which acts on the wheels (2). The brake shoe (14) is attached to the lever (5) which pivots on the column (4) which carries the wheel bearing housing (3). The brake is actuated by the cable (6) with an end fitting (7). The cable (6) runs through the sheath (11) and is attached at its other end to the lever (9). The lever (9) pivots on a lug attached to the collar (12) of the hand grip (10). A spring (15) fitted between the brake shoe (14) and lever (5) reduces the abruptness of the application. The brake can be fitted to one or both pairs of wheels or to wheels on one side of the board. The brake provides a simple means of controlling speed with greater safety for the user.
Patent DE-2638323-A1 (DE)
Title: Cleaning surfaces with gas and/or liq. streams - contg. added solids e.g. ground ice and/or sub-cooled PVC particles when cleaning PVC prodn. appts.
Inventor: HAGER CLAUS
IPC: B24C1/00
Filed: 1976-08-25
Abstract: Surfaces are cleaned with a gas- and/or liquid jet contg. solid particles having dia. 0.05-2 mm. The solid particles are added to the gas- and/or liquid carrier after carrier flows out of a nozzle at 40-300 m/sec. under 3-800 bar. Solids are (a) crystalline or brittle vitreous organic materials solid above 10 degrees C and/or (b) organic solids hardened by sub-cooling to +10 to -180 degrees C and/or (c) liquids solidified at +10 to -180 degrees c and/or (d) gases solid at +10 to 180 degrees C. Process is used esp. for cleaning surfaces of containers and autoclaves, e.g. for internally cleaning stirrer autoclaves used in PVC prodn. The solid particles, accelerated by quick-flowing carrier stream, increase cleansing activity, penetrate into pores, but do not damage surfaces on repeated use.
Patent DE-2648350-A1 (DE)
Title: Microwave aerial consisting of tubular conductor - has spaced rings with circumference equal to free space wavelength necessary for propagation in wave guide
Inventor: DOMBEK KARL-PETER DR ING
IPC: H01Q19/06
Filed: 1976-10-26
Abstract: A microwave aerial which consists of a hollow conductor or dipole radiator and a series of closed metallic frames or rings. They are attached to the radiator symmetrically around the axis. The size of the aerial is of the order of a few wave lengths. The gain of the aerial is in the medium range and can be used as an exciter for reflector aerials. The diameter of the frame or ring (2) is chosen to produce a circumference which is at least equal to free space wavelengths for propagation in a wave guide. The thickness of the frame or wavelength. The frames or rings form short sections of a waveguide to form part of the feeding waveguide (1).
Patent DE-2648918-A1 (DE)
Title: Linear motor drive for conveyor band - has rollers made from ferromagnetic material driven by induction through non metallic base
Inventor: LUDA GERT ING GRAD
IPC: B65G23/23
Filed: 1976-10-28
Abstract: The drive installation is used for a conveyor band or band shaped conveyed goods made of non-metal material. The conveyor band or band shaped goods being conveyed (1) is led over the metal rollers (2). The metal rollers (2) are driven by a linear motor in a direction of rotation (5, 5') which together with the direction of movement of the movable electro-magnetic field corresponds to a rack and pinion drive. The distance of the linear motor from the roller (2) or rollers and the superimposed band is relatively small, and the rollers are made from ferromagnetic metal.
Patent DE-2649606-A1 (DE)
Title: Purification of exhaust gases using platinum-rhodium catalysts - with fuel-air ratio controlled by gas compsn.
Inventor: KAWASAKI EIJI
IPC: F02D35/00
Filed: 1976-10-29
Abstract: Exhaust gases, esp. from vehicles, are purified with control of the excess air ratio lambda, (ratio of air in the mixt. to the stoichiometric level) within 0.95-1.10, and contact of the exhaust gases at 250-850 degrees C with a catalyst contg. 0.07-0.14 wt.% Pt and 0.004-0.035 wt.% Rh or a granular, refractory carrier of Al2O3, SiO2 or Al silicate. Half-cycle time of variation of lambda from the optimum valve of 1.0 is 0.2-0.5 s. The fuel-air ratio is controlled by an electrical signal from a sensor in the exhaust gas stream. Over 80% oxidn. of hydrocarbons and CO, and redn. of NOx is achieved under variable driving conditions. Pref. the total vol. of catalyst is 80-150% of the engine capacity. The carrier is Al2O3 with average particle size 1.5-3.5 mm contg. 0.07-0.14 wt.% Pt and 0.004-0.029% Rh. lambda is maintained within 0.97-1.05 and the half cycle time is 0.3-0.5 s.
Patent DE-2650095-A1 (DE)
Title: Machine thrust limiter for packing machines - has spring-loader ring supporting spheres positioned between housing and stepped portion embraced by housing
Inventor: MUELLER ERNST
IPC: G05G15/08
Filed: 1976-10-30
Abstract: Machine thrust limiter esp. for packing machines for e.g. cigars can be added to existing machines. The thrust is transmitted by a rod (1) with a stepped portion embraced by a housing (3). Spheres (4) are positioned between the housing and the stepped portion and are supported by a spring-loaded ring. At a given thrust force the stepped portion forces the spheres against the spring force into the housing so that the stepped portion can move past the spheres. Pref. the stepped portion is formed by the flanks of an annular groove in the rod.
Patent DE-2651197-A1 (DE)
Title: Metal strip cutter and stacker - has stationary shears and vacuum or magnetically operated stacking mechanism
Inventor: LOEWER WERNER
IPC: B21D43/28
Filed: 1976-11-10
Abstract: The shears (3) for the arrangement are mounted immediately next to the stacking mechanism (5). A strip of sheet metal is fed by a drive roller system in between the shears towards the stacking mechanism till the required length protrudes from the shears. The sheet which protrudes from the shears is supported by a transport system (4), which is mounted immediately behind the shears. Magnets (6) or suction pads hold the material at the bottom side of the transport arrangement. The magnets are operated at the same time as the drive rollers for the sheet. When the drive rollers and the transporter are at rest, the shears are operated.
Patent DE-2658225-A1 (DE)
Title: Nuclear reactor safety valve - has membrane burst by pointed device before reaching maximum deflection
Inventor: BUENZOW HANS ING GRAD
IPC: F16K17/16
Filed: 1976-12-22
Abstract: The safety valve for pipes and vessels is partic. for nuclear reactors, acting as a barrier against high operating pressure on the primary side, and automatically opening under excess pressure on the secondary side as compared with the primary operating pressure, which is normally the higher. A bursting membrane in a flange union seals the two sides from each other, and is supported against the operating pressure by a sieve-type body. The membrane is of such dimensions that with increasing secondary pressure it deflects to a max. point, where bursting occurs, on encountering a pointed piercing device on the primary side and normally clear of it. The distance between the membrane and the device with the former in the rest position is less than the max. amount of deflection so that the membrane is positively pierced before max. deflection occurs.
Patent DE-2700760-A1 (DE)
Title: Price display in automatic checkout for supermarkets - has product code identification and display of unit and total prices
Inventor: SUNDELIN RONALD M
IPC: G06F3/147
Filed: 1977-01-10
Abstract: An automatic cashier system for supermarket goods allows all identification and price data to be entered into a central processing unit. The system includes a facility for changes in price to be quickly displayed for the benefit of the purchaser. The articles are located in a data reading station and the information displayed on a unit that is identified by display of the product code (14). Unit price (10) is displayed together with total price (9). An address code (15) is read to identify the unit. All data is transmitted to the central processor.
Patent DE-2711662-A1 (DE)
Title: Sheet clip for drawing board - has clamping strip pivot axis formed by ridge between magnetised surfaces on profiled body
Inventor: HEBEL WALTER
IPC: B43L5/02
Filed: 1977-03-17
Abstract: The sheet clamping equipment is for writing and drawing boards, having a clamping surface of magnetised material secured to the board. A clamping strip secures the sheets and is mounted on the clamping surface, the strip pivoting on a ridge between the engaged and the free positions. There is a second magnetised surface (2) inclined to the first one (1), and the ridge along which they join forms the pivot axis for the clamping strip (4). The two surfaces can be faces of a common profiled piece, countersunk into the drawing board (3), and which can be partly or entirely of dovetail section. The ends of the clamping strip can be bent over to form tongues, engaging in recesses formed in the board.
Patent DE-2719424-A1 (DE)
Title: Oxidn. dye-based hair-dyeing compsn. - contg. di:amino-benzoxazole, di:amino-benzofuran or di:amino-benzoxazolinone derivs. as couplers
Inventor: ROSE DAVID DIPL CHEM DR
IPC: C07D263/58
Filed: 1977-04-30
Abstract: Oxidn. dye-based hair-dyeing compsns. (1) diaminobenzoxazole-, diaminobenzofuran or diaminobenzoxazolinone derivs. of formula (I) or their (in)organic salts as couplers and (2) standard developers for oxidn dyes. In the formula, R1 and R2 are H or 1-4c alkyl, X is CR1 or CO, and Y is N, CH or NH, provided that the 2-NR1R2 gps. are in the m-position. 5,7-Diamino-2-ethylbenzoxazole, 5,7-diamino-2-methyl -benzofuran and 4,6-diaminobenzoxazolinone are specifically claimed. (I) yield strong brown to blue-black fast shades. Strong light-fast dark-blue shades can be achieved in water, non-toxic, resist storage, and do not irritate the skin.
Patent DE-2721382-A1 (DE)
Title: Digital heart frequency measuring instrument - has frequencies stored for given digital counter state under addresses
IPC: A61B5/332
Filed: 1977-05-12
Abstract: The digital heart frequency measuring instrument eg for athletes has a digital counter and a digital store. The instrument is fed with an electrical pulse sequence corresp. to the pulse rate. The heart frequency is sequentially analysed from beat to beat. The digital counter has on its input independent timer and on the output end an intermediate store to hold the timing pulses between the two heart beats. The digital storage is connected to the intermediate storage forming a programmable storage. The heart frequencies corresp. to the given counter state are stored under its addresses.
Patent DE-2723711-A1 (DE)
Title: Niobium silicide particles made in hydrogen plasma - for mfg. superconductors with high critical temp.
Inventor: WINTER HEINRICH DR
IPC: C22C1/00
Filed: 1977-05-26
Abstract: The beta-W-A15 modification of niobium silicide, Nb3Si, is made by reaction of the halides of niobium and silicon in a hydrogen plasma. The plasma arc is pref. flattened magnetically and a min. arc current of 300 amps is pref. employed. The reaction is pref. undertaken at a press. of min. 3 atmos. The economic mfr. of Nb3Si particles which can be pressed into superconductors suitable for cooling with liq. hydrogen. The invention produces a higher superconducting transition temp. (Tc) than can be achieved with conventional processes for mfg. Nb3Si.
Patent DE-2726629-A1 (DE)
Title: Solar cell efficiency increase - by bilateral semiconductor cell coating of substrate
Inventor: EFFENBERGER WILHELM ING GRAD
IPC: H01L25/04
Filed: 1977-06-14
Abstract: The efficiency of solar cells is improved by coating the substrate of heterogeneous semiconductor cells on both sides and/or by bilateral diffusion of boundary layers in the base cell of homogeneous semiconductors. This doubles the current generation per unit surface area and reduces the overall cost of solar heating installations. Pref. the new solar cell consists of a substrate (a), made of molybdenum or aluminium sheet, which carries on both surfaces a metallic contact layer (b). An n-type CdS layer (c) 40 mu thick is followed by a p-type CuxS layer 0.2 mu thick, (d) and finally a copper contact grid (e). The whole is coated by a protective foil (f).