baber/WOPTO huggingface dataset:
Patent DE-2249070-A1 (DE)
Title: Sausage filling machine - with feed pump control switch operated by output side guide rollers
Inventor: SCHNELL KARL
IPC: A22C11/10
Filed: 1972-10-06
Abstract: A pulse generator is directly coupled to one of the two rollers and as each link passes through the rollers, the number of pulses is counted and compared with a value representing the desired length of the links, which is preset on the counter. The output from the counter energize, a solenoid change over valve controlling a double acting, ram which in turn controls the pump motor on/off switch and operates the interlink twisting mechanism.
Patent DE-2257712-A1 (DE)
Title: Stabilisation of inverted boundary surfaces by oscillation - oscillatory effect increased by use of gas cushion
Inventor: WOLF GERD H
IPC: B01J19/10
Filed: 1972-11-24
Abstract: Liquor surface is stabilised at given frequency of oscillation, extra liquid being rejected as droplets. The frequency and power required are reduced by introducing an air cushion between the liquid surface and the vessel face connected to the oscillator. Vessels sizes above 1 cm thus become practical.
Patent DE-2317506-A1 (DE)
Title: Forming flared end steel tubes - in sequential two die process using punch acting as mandrel
Inventor: SIMON JOSEPH A
IPC: B21K1/26
Filed: 1973-04-04
Abstract: A seamless steel tube blank is initially inserted into the upper flared end of a first die made in a stepped form including a narrow mid portion forming a shoulder with the upper end, and having a straight lower end. A punch with an enlarged body with a pushing shoulder at the lower end engages the blank, the spindle portion of the punch acting like a mandrel within the blank. The partly shaped blank is then put in a second die and shaped with another punch with a widened upper portion of dia. equal to the workpiece o.d., simultaneously the mid-portion expands the upper bore into the flare. Relatively low forming pressures are required. Useful for steel spindle housing mfr. for journalling lorry wheel axles.
Patent DE-2318653-A1 (DE)
Title: Utilising aluminium treatment waste liquors - as precipitants and flocculants for waste water purification
Inventor: MUEHLHAEUSSER MARTIN DIPL CHEM
IPC: C02F1/52
Filed: 1973-04-13
Abstract: solns used as precipitants and flocculants in waste water purification and sewage disposal plant and/or as water-extracting agents for settling tank sludge, are derived from lyes or acids obtd as waste in blanching and/or etching and/or electrolytic treatment of Al surfaces. Pref. the Al-contg. waste acids and lyes are combined to a soln, if necessary with addn of fresh lye or fresh acid, so as to reach, desired pH for end-use. The Al-contg. lye and acid may be derived from different plant or from different steps in same plant. Al-deficient material is pref. enriched in Al, e.g. by addn of Al waste.
Patent DE-2322641-A1 (DE)
Title: Microorganism analysis - by measuring change in electrical conductivity
Inventor: CADY PAXTON DR MED
IPC: C12M1/34
Filed: 1973-05-02
Abstract: Microbiological growth is determined quickly by measuring the change in electrical conductivity of a nutrient medium in an incubated closed cell inoculated with suspected micro-organism contamination. A plot of change in conductivity with time reveals a curve which is characteristic for a particular species of micro-organism in a particular nutrient medium. The selection of suitable nutrient media and the measurement of conductivity changes can give a determination of presence, type, antiserum sensitivity and a quantitative count of bacteria and other micro-organisms present in a selected sample.
Patent DE-2333314-A1 (DE)
Title: Ash grinding mill for crematorium furnace - has motor driven drum with grinding blocks
Inventor: FAELLING KJELL
IPC: F23J1/00
Filed: 1973-06-29
Abstract: The ash box of the crematorium furnace is placed into the grinding machine receptacle and held there so that it can rotate. The ash box has a perforated casing for separating from the housing. The ash box container is completely enclosed by a rotating drum. Grinding is carried out by rotating the vertical assembly about a horizontal axis. Grinding action is provided by grinding balls. A suspended base mounted urn has top mounted sliding door.
Patent DE-2337071-A1 (DE)
Title: Given conditions presence indicating cct. for coders - has diode and resistor cascade generating voltage indicating levels present out of possible total
Inventor: GAAS HANS GEORG
IPC: G06F11/08
Filed: 1973-07-20
Abstract: The n-out-of-m presence indicating circuit for coders monitors various potential points to indicate the number of points (n) having potentials from the total (m) monitored. Each potential is coupled over a diode to a two-resistor potential divider. The dividers are all connected at one end to a common measuring terminal and at the other end to earth. The indicating instrument is connected between the measuring terminal and earth. All the dividers consist of resistors having two values only, and the associated diodes are rated accordingly.
Patent DE-2337782-A1 (DE)
Title: Odorising liquid natural gas with mercaptans - which are added as solns. in solvents with low freezing points
Inventor: MAZELLI JACK RAYMOND
IPC: C10L3/00
Filed: 1973-07-23
Abstract: Liquefied natural gas is oderised by addition of an odorant dissolved in a solvent. The oderant pref. has a f.pt. > b.pt. of the gas, and the solvent has a f.pt.  b.pt. of the gas. The oderant is pref. ethyl and/or methyl mercaptan and is dissolved in liquid propane at =15 vol.% or in methane gas under pressure. Solidification of the odorant and slow soln. in the liquid gas at low temps. are avoided. Solns. of ethyl mercaptan in propane show no solidifcn. at -161 degrees C (a typical b.pt for natural gas) at 5.7 mole %.
Patent DE-2338936-A1 (DE)
Title: Construction toy with panel shaped elements - joined hinge-fashion by connectors and hinge elements
Inventor: ZOSEL FOLKER DIPL-ING
IPC: A63H33/10
Filed: 1973-08-01
Abstract: Panel shaped elements are as thick as a given basic measurement, with undercut openings at their entire periphery to receive hinge elements attached by insertion and twisting through 90 deg. A connecting bar secured at its ends by closure elements holds together 2-6 narrow sides, with hinge elements, of panel shaped elements, and simultaneously prevents the hinge elements from turning and hence releasing. Panels made from identical glued or welded parts, have lateral sockets with blind holes to receive hinge pins.
Patent DE-2345014-A1 (DE)
Title: Solid cyclopentadiene polymers - useful in coatings, produced by solvent-free polymn. at elevated temps.
Inventor: PETZNY WILFRIED JOHANN DIPL IN
IPC: C08F32/06
Filed: 1973-09-06
Abstract: Unsatd. cyclopentadiene polymers are made by polymerising cyclopentadiene monomers and/or dimers at raised te temps. in the absence of solvents. Higher yields of resin and lower temps. reqd. for a given degree of hardness. The resins are solid and are used in coatings/lacquers. The pref. monomer is dicyclopentadiene and polymn. is pref. effected at 240-290 degrees C for 2-5 hrs. in the presence of pref., benzoyl peroxide or cumene hydroperoxide. Copolumsn. with (alkyl)styrene, using a pref. diene:styrene molal ratio of 1-3:1, increases the resin's gloss, hardness and evenness. The resin may be extended with mineral oil residues or with polymers (e.g. PVC or polystyrene).
Patent DE-2347952-A1 (DE)
Title: Single occupant compact safety vehicle - with steel tubular frame and small engine with wheels arranged in diamond pattern
Inventor: STRAKATA JOSEF
IPC: B62D31/00
Filed: 1973-09-24
Abstract: The safety vehicle is constructed around a tubular-steel frame with parallel floor frames supporting lateral tube loops and vertical steel loops which surround the vehicle and support the roof. The roof section is removable complete with reinforcing frame, and to gain access to the single seat. A single front wheel is steered by a tiller bar while the single rear wheel is connected to the small engine by a chain drive. Lateral stability is obtd. by two lateral wheels supported on the frame by trailing arm suspension forks. The vehicle is ideal for city traffic and is further protected by padded bumpers fore and aft.
Patent DE-2355767-A1 (DE)
Title: Aircraft hover height altimeter - has an optical screen projector for the image of the aircraft lower edge
Inventor: JOERG GUENTHER W
IPC: G01B11/14
Filed: 1973-11-08
Abstract: The hover height indicator includes a projector to display an image of the ground, using reflected light from headlight illumination, the returned light being controlled by reflector mirrors and a lens. The screen is used directly as the display element, and is provided with a height scale. The aircraft lower edge and the ground are both illuminated by the projector. The light source may be an ultra-violet or an infra-red source. The mirror reflection functions may be performed by prisms.
Patent DE-2365934-A1 (DE)
Title: Polyesters from butane diol-1,4 and phthalic acids - by transesterifying under pressure to minimise formation of tetrahydrofuran
Inventor: PELOUSEK HERBERT DR
IPC: C08G63/80
Filed: 1973-08-10
Abstract: High m.wt. polyesters suitable for injection moulding are prepd. by condensing butanediol-(1,4) opt.mixed with =10 mole % of another diol with dialkyl esters of tereand/or iso-phthalic acids opt. mixed with is not >10 moles % other dialkyl esters of dicarboxylic acid, the transesterification being effected under pressure as an improvement. Pref. the stage comprises (1) transesterifying 1 mole of the ester with 1.05-1.9 mole diol using 0.01-0.4% catalyst (based on ester) under 2-10 bars at 180-230 degrees C, (2) polycondensing the prodt. from (1) at 230-300 degrees C under 0.1-5 mm.Hg pressure in the molten state, and (3) further condensing the polyester from (2) under reduced pressure or inert atm. at 5-50 degrees C lower than the polyester m.pt. until an intrinsic viscosity of 0.6-1.9dl./g. is reached. Formation of tetrahydrofuran in the transesterification stage is considerably reduced, amt. of oligo-esters is reduced and the polyesters have higher m.wt.
Patent DE-2400399-A1 (DE)
Title: Annular rubber rim band for vehicle wheels - has edge zones of pre-vulcanised mixtures of rubber softer than middle ring zone
Inventor: STEEG HORST DR
IPC: B60B21/12
Filed: 1974-01-05
Abstract: Annular rim band of rubber for motor vehicle wheels where the middle, thick walled ring zone carries over into edge zones of continuously reducing wall thickness. The edge zones consist of pre-vulcanised rubber mixts. and are softer than the middle ring zone by 10-20 deg. Shore A, and specifically by 15 deg Shore A. The middle zone has a hardness of approximately 50 deg. to 70 deg. Shore. The arrangement is intended to give good roadholding when the stress is thrown onto the soft mix side portions upon cornering of the vehicle, and economical wear from the harder centre portion.
Patent DE-2404759-A1 (DE)
Title: Tantalum capacitor flow production - using carrier tape for suspending capacitors on dummy tantalum wire
Inventor: LUTZ GEORG
IPC: H01G9/00
Filed: 1974-02-01
Abstract: The flow production of Ta capacitors uses a carrier tape from which the capacitors with the sintered base electrode of Ta, Al, Nb or Ti, covered by a dielectric and the pyrolytically produced counter electrode are suspended by their central Ta wires, welded to the tape. A second wire connector is welded with one end to this wire, located by insulating tape on the carrier tape, and finally another wire is soldered to the countered electrode so that the Ta suspension wire can be severed. This makes it possible to complete all process operations, including the testing of the capacitators, before they are finally severed from the tape.
Patent DE-2404885-A1 (DE)
Title: Measurement of residual current on capacitors - with charging battery and voltage comparator and especially for electrolytic condensers
Inventor: GRAPENTHIN HANS ERNST JULIUS D
IPC: G01R31/00
Filed: 1974-02-01
Abstract: A d.c. voltage is applied as a charging voltage to the capacitor in a first definite period. The capacitor is not disturbed during a subsequent second definite period, and when this period is over, the residual voltage still applied to the capacitor is compared with a component voltage proportional to the charging voltage. The second definite period can be kept shorter than the discharge time of the capacitor. The first period can be kept equal to the charging time of the capacitor or shorter than the charging time of the capacitor. A voltage comparator can compare the residual voltage and component voltage.
Patent DE-2406747-A1 (DE)
Title: Goods trolley with loading aid - has fixed and eccentric pivotable claw to lift load by clamp action
IPC: B62B3/04
Filed: 1974-02-13
Abstract: The trolleyis provided with a fixed and an eccentrically pivoted claw moved by a manual lever. The distance between the claws can be adjusted according to the type of load to be lifted. The trolley is moved to the load so that the fixed claw rests on it and the movable claw is moved forward, as the trolley is tipped the load tends to tighten the movable claw and a continuation of the tipping action lifts the load. Unloading is by the reverse process. The arrangement is used for moving the load to areas which a crane cannot reach.
Patent DE-2411336-A1 (DE)
Title: Flushing cistern for water closets - has two actuators for supplying different quantities of flushing water
Inventor: RITTBERGER HANS-JUERGEN
IPC: E03D1/14
Filed: 1974-03-09
Abstract: The flushing box is used to supply two different quantities of water in order to reduce overall consumption of water. The flushing box has two actuating arrangements and two compartments with different volumes. Each chamber has its own float actuated water supply valve and water draining valve with actuating push buttons. Water leaves the larger chamber through a vertical pipe to which is joined an outlet pipe from the smaller chamber. In another version an automatic system ensures that a smaller quantity of water is released from a single chamber tank and a further quantity of water is released by releasing the blocking arrangement for the first push button by another push button.
Patent DE-2411620-A1 (DE)
Title: Anti-fouling system for marine hulls - with protective mesh of copper alloy to give controlled release of copper ions
Inventor: KOEHLER WINFRIED DR ING
IPC: B63B59/04
Filed: 1974-03-11
Abstract: The steel hull of the boat or underwater structure is covered by a series of rings or bands, or by a mesh, of a copper alloy. This is attached by special rivets or is glued on to reduce catalytic action. The action of the salt water on the copper alloy results in an enhanced release of copper ions, while the rest of the alloy, which can be a noble metal remains for reclaiming. The protective system remains effective for longer periods than conventional anti-fouling layers and is relatively simple to replace.
Patent DE-2414440-A1 (DE)
Title: Large-slab-structure reinforced concrete building element - with sheet metal section on frame interior shoulders for steel mesh fixture
Inventor: HARDEN HEINRICH DIPL ING
IPC: E04C2/04
Filed: 1974-03-26
Abstract: Slab-type building elements are provided which can be produced without large-scale capital outlay, e.g. by builders operating on a small scale. The reinforcing steel mesh units are fixed on shoulders or ledges in the inside of the frame, which is made of sheet metal. The walling surfaces of this on both sides may lie at a higher level than the longitudinal edges. There may be a bevelled edge on one side for production of a corner joint, and a piece of sheet metal lying flush with the element surface between two frame sides, for production of a T-joint. The frame, for holding the reinforcing steel mesh units in a stable position, serves at the same time as form for concrete.
Patent DE-2426627-A1 (DE)
Title: Sorter for stepped cylindrical parts - feeds parts to automatic lathe in correct attitude
Inventor: CUERTEN GUENTER
IPC: B07C5/04
Filed: 1974-05-31
Abstract: The sorting arrangement consists of a vertical tube in which the parts are randomly fed, to fall into a box section from which they are fed to the machine tool by a pushrod, or by gravity if mounted at a slope. The box section splits into two channels. One channel has a flanged slot along its bottom, which the other channel has a flanged slot along its top face. When the stepped cylindrical part falls down the feed tube with its largest diameter first, the part with reduced diameter will be guided into the channel with the slot in its top face. When the section with reduced diameter comes down first, it will be guided through the channel with the slot in its bottom face.
Patent DE-2427994-A1 (DE)
Title: Housing for power packs for electric equipment - consists of U-shaped basic frame with two insertable sides and cover
Inventor: BLAEDEL HERBERT MAX
IPC: H05K5/04
Filed: 1974-06-10
Abstract: The frame of the housing consists of a flat base with side strips bent upwards and of two end walls with edges bent inward, all made of sheet metal. The side strips and the end wall bent edges are spot welded where they overlap. The insertable sides are made of perforated metal sheets. They are so cut out, that they form arms at their upper parts. Plastic snap buttons are provided so that the cover can be swivelled noiselessly. The cover has apertures for indicating instruments and servicing elements for the housed components. The housing and frame give good mechanised stability in a simple, inexpensive manner.
Patent DE-2428197-A1 (DE)
Title: Orthobenzyl toluenes prepn. by a condensn. reaction - of o-xylyl halides and substd. benzenes in acids
Inventor: EILINGSFELD HEINZ DR
IPC: C07C2/86
Filed: 1974-06-11
Abstract: Prepn. of o-benzyltoluenes (I) by condens. of (II) with (III) (where R1, same or different, is H or halogen; R2 is as R1 or an aliphatic or aromatic radical) in the presence of H2SO4 or a mixt. of H3PO4 and an org. sulphonic acid RSO3H, opt. with cpds. contg. Zn, Sn, or B. Method is less hazardous, gives good yields without need if complicated catalysts, and shows consistent results. Cpds. (I) are inters. e.g. for dyestuffs.
Patent DE-2431139-A1 (DE)
Title: Arrgmt for adjusting die position - has hydraulically operated wedge drive with pressure indicator and stroke adjustment
Inventor: FREI HANS-JOACHIM
IPC: B21D28/24
Filed: 1974-06-28
Abstract: The dies in the press arrangement should have a predetermined accurate length, as the length of the press stroke is always the same. To compensate for wear or to allow for variations in material thickness etc., it is necessary to be able to adjust the position of the dies (6). For this purpose, a non locking wedge drive (10) is mounted over the die. The wedge drive is provided with an hydraulic actuator (15, 16). The driving wedge of the key drive is connected to the piston rod of the actuator. A pressure indicator is provided which indicates the pressure of the hydraulic medium in the actuator. The stroke of the actuator can be adjusted by a nut on an extension of the piston rod and a stop.
Patent DE-2431458-A1 (DE)
Title: Identifying speaker from sound of voice - uses labelling system and recording system correlating labels with known speakers
Inventor: BUNGE ERNST DIPL ING
IPC: G10L17/00
Filed: 1974-07-01
Abstract: Eletronic techniques are applied to the analysis of any specimen of speech according to the characteristics of the whole specimen, a frequency distribution of lengths of periods with null non-null microphone output, voice pitch and amounts of change in pitch, and loudness and extent of changes in loudness. Spectral analyses of successive brief intervals are performed and the resulting set of histograms is analysed to produce distributions of local maxima and minima of the curves, as well as of regions of rising and falling, and of plateaux for both frequency and amplitude spectra also the distribution of the lengths as a sum of brief intervals of pauses, and of voiced and voiceless sound.
Patent DE-2433634-A1 (DE)
Title: 4,4-Dimethyl-1,3-dioxan prepn. - by reacting formaldehyde, isobutylene and acidic salt catalyst
Inventor: GORBUNOW BORIS NIKOLAJEWITSCH
IPC: C07D319/06
Filed: 1974-07-12
Abstract: The cpd. 4,4-dimethyl-1,3-dioxan (I) is prepd. by reacting isobutylene with HCHO in aq. medium contg. inorg. salt of mineral acid which holds pH at 2.2-4.5, at 90-115 degrees C washing the org. phase with water and recovering the prod. (I). The sepd. aq. phase and the water wash may be combined and 85-90% distilled to produce a distillate contg. unreacted HCHO which may be recycled, and a residual oil layer (which contains some recoverable (I) produced during distillation) and a salt layer which is sepd. and recycled. Cpd. (I) is an inter. for isoprene, a monomer for stereo-specific polyisoprene rubber prodn. The process gives high yields (85-90% w.r.t. reacted HCHO) does not produce polluting waste water, and by-prod. 3-methylbutane-1,3-diol (II) is not discarded but converted to (I) during distillation. The preferred catalytic salts may be recovered since their stable acidity during distillation prevents resinification.
Patent DE-2434942-A1 (DE)
Title: Garments spray washing machine - with jet nozzles on banks of rotary pipes
Inventor: MANUEL MALCOLM ORWILLE
IPC: D06F17/04
Filed: 1974-07-19
Abstract: Conveyor with hangers transports garments through two water spray stations, in the first of which the jets of the rotary pipes produce flat sprays extending horizontally while in the second the similar flat sprays are directed vertically. Pref. the pipes of the first station are spaced vertically and are at a small acute angle with the horizontal, while those of the second are spaced horizontally and at an acute angle to the vertical, both stations having a bank of pipes opposite another bank on the opposite side of the conveyor, and the pipes of opposed banks being rotated out of phase. Pref. restraining wires which run horizontally confine the garments to a travel path through the spray stations.
Patent DE-2438360-A1 (DE)
Title: Portable battery operated lawn trimmer - has adjustable rotary elbow connection handle shaft
Inventor: ACHENBACH DIETER
IPC: A01G3/06
Filed: 1974-08-09
Abstract: The cutting head is used with a long handle fitted with wheels on an axle. The lower end of the handle is parallel to the ground and has a bar in the end. This has two longitudinal diametrically opposite slots with a location boss in each slot near the end. The bar is inserted in slots in a socket on the head, the bosses locking in place. The other end of the bar, held in the handle, has serrations around its periphery, a spring loaded ratchet lever being used to select the operating position which is held by tightening a locking ring.
Patent DE-2444617-A1 (DE)
Title: Pressure difference regulator with switching valve control - has externally triggered valve in low pressure orifice line closed to provide closure of regulator
Inventor: PETERSEN WOLFGANG
IPC: G05D16/16
Filed: 1974-09-16
Abstract: A pressure difference flow regulator for use in heating system has a built in facility or electrical system. An orifice plate located in a supply line provides a pressure differential between two lines coupled to the diaphragm stage of a regulating valve. The low pressure downstream line has an on-off control valve and a by-pass has a restrictor before being connected to the output of the regulator. In operation, when the control valve is open a normal differential pressure controls the regulator. When the control valve is actuated by either a pneumatic or electrical signal, the pressure on the top side of the diaphragm falls at a rate fixed by the resistrictor and eventually the regulator closes. Typically the closing time is 30 seconds.