baber/WOPTO huggingface dataset:
Patent DE-2429915-A1 (DE)
Title: Roller mounting for safety belt - prevents locking on unwinding from fully wound state by inertial catch
Inventor: STOFFEL ROBERT W
IPC: B60R22/41
Filed: 1974-06-21
Abstract: The roller mounting for safety belt comprises a belt roller (14), in an anchor (12), biassed in the winding direction, and a locking device (36) which locks the roller in the unwinding direction and released by a first catch (42) to unwind the belt. A second catch prevents movement in the locking direction and is rendered ineffective when an inertia-actuated device is coupled to the locking device after unwinding of a given belt length. The second catch is part of a gear with a ring of teeth which moves axially relative to the belt roller between two positions in one of which it is associated with a ratchet device (74) capable of engaging the teeth on rotation of the belt roller, thus moving the catch to move the locking device into its locking position.
Patent DE-2430311-A1 (DE)
Title: Adjusting system for dial mechanisms - has drive for cycles parallel in time and toothed directional locking mechanism
Inventor: STEMME WALTER
IPC: G04B27/00
Filed: 1974-06-24
Abstract: The pawl (5) of the toothed directional locking mechanism is designed as an idle-time ratchet and permits a limited return of the index gear (2) and, consequently the barrel. The spring-loaded pawl can have a slot (6) through which passes the bearing journal (4) which is stationary on the plate bar (21). This allows a limited movement of the pawl against its operative direction in relation to the plate bar. The pawl can be designed as a small gear mounted on the bearing journal and having a radially extending arm preventing complete revolution of the small gear.
Patent DE-2434278-A1 (DE)
Title: Automatic tidal river flow measurement - involves widely separated floats connected to simple lever reading combining system
Inventor: RUDOLFSEN ALFRED H
IPC: G01F1/00
Filed: 1974-07-17
Abstract: The volume of flow is recorded without interruption on a recording drum, even in tidal areas, and is calculated according to the Manning-trickler formula. The constantly changing water levels are determined by means of two communicating propelling vessels or electrically connected floats at a distance of 0.2-0.3 km from each other. According to the Manning-Trickler formula, the water heads with a cross-section of flow taking into account the conditions in the channel are combined into a simple lever system. The cross-section of flow can also be determined by means of a communicating system consisting of a fixed tube and propelling vessel or float with electrical or mechanical transfer.
Patent DE-2438650-A1 (DE)
Title: Scraper chain conveyor with two parallel endless linked chains - has each scraper connected across the parallel chains to horizontal chain links
Inventor: MECKLENBRAUCK HEINRICH
IPC: B65G19/10
Filed: 1974-08-12
Abstract: The scrapers have vertical bores (33) aligned with holes in the centre of the inner web (13) of the connecting chain link (11). The coupling is effected by a clamping sleeve (21, 22) or a screw or both which pass through the aligned hole and borehole. The two sleeves lie one inside the other. The scraper typcialy has fork-shaped ends which have boreholes aligned with one another. The feet (34) of these ends are broadened and concave shaped to conform to the curvature of the curvature of the chain link elements (12). Other designs of coupling also provide a simpler method of scraper connection than is found in previously available designs.
Patent DE-2442348-A1 (DE)
Title: Road surface machining rotating circular cutter - has hollow hub for sections with replaceable cutting inserts
Inventor: MARKS ALBRECHT
IPC: B28D1/18
Filed: 1974-09-04
Abstract: The cutter is readily handled and it is designed to facilitate rapid replacement of the cutting teeth. The cutter assembly has an internal hub (12) around which are fixed detachable coaxial sections (14). Each of these sections has a number of circumferential openings (16) for the cutting teeth. Each of the sections is firmly connected to the hub and the assembly of sections forms a circular cutter. The cutter hub and section bodies can be made from commercial tubular sections. For replacement purposes only, a particular section with defective teeth need be detached and replaced after correction.
Patent DE-2444219-A1 (DE)
Title: Lighting system for TV studios and theatres - uses rectangular wave which is of same frequency as AC mains to supply discharge lamps
IPC: H05B41/392
Filed: 1974-09-16
Abstract: The lighting system, for television studios and theatres etc., has its gas discharge lamps supplied from a rectangular wave a.c. current. The rectangular waveform is obtained by converting the normal a.c. supply. The supply circuitry consists of a rectifier (2) to rectify the supply, a setting circuit (3) to draw d.c. in pulses from the rectifier, a smoothing circuit (4) to generate a pure d.c. current from the d.c. pulses, a regulating circuit (9, 10) to control the lamp, a static inverter (5) to produce the rectangular wave (same frequency as the a.c. supply), and a sync. circuit (6).
Patent DE-2447207-A1 (DE)
Title: Work bench for household garages etc - has drop-down front flap forming bench supported on swivel-out frame
Inventor: KUEMMERLIN WALTER
IPC: A47B83/04
Filed: 1974-10-03
Abstract: The workcupboard comprises a lock-up cupboard with various shelves and a square frame rear wall and a front door panel which is designed to swivel about a horizontal axis so that it can be let down onto a supporting frame and act as a work bench. The supporting frame is provided with a swivel arm and support legs which can be extended out about a vertical axis in order to support the front of the workbench. Two upright stationary support legs are mounted in the plane defined by the rear wall and can be screwed to the shelves making up the cupboard. In this way a proper workbench with vice etc. can be provided in a normal household garage but without taking up the space required for the car.
Patent DE-2448400-A1 (DE)
Title: Multi purpose table with tabletop of adjustable incline - has detachable fastening means for locking top relative to end side panels
Inventor: KORELL DONALD D
IPC: A47B17/02
Filed: 1974-10-10
Abstract: The table or writing desk is provided with side panels (12) mounted at each end of the table top (10) so that the latter can be fastened to the end panels by detachable fasten-means mounted on the table top and each panel. These detachable fastening means have at least two interacting positions so that in the first the table top is horizontal and in the second it is inclined. The fastening means comprise an insert (170) which detachably fits in an opening (161) in the end plates (12) and has an eccentric hole (171) through which a connecting element (152) is guided which connects the end of the table top to the end panels. The insert and opening (161) are mounted so that the hole in the insert lies flush with the detachable connecting element in the two different positions of the table top and the rear edge of the latter lies generally in the same position relative to the end panels when both in the horizontal and inclined positions.
Patent DE-2456855-A1 (DE)
Title: Cysteine-N-acetic acid - prepd by reacting thiazolidine-4-carboxylates with haloacetates, hydrolysing, and ring opening
Inventor: BANHOLZER RUDOLF DR
Filed: 1974-12-02
Abstract: Cysteine-N-acetic acid (I) and its acid addition salts are prepd. by reacting an ester of thiazolidine-4-carboxylic acid with a chloro-, bromo- or iodo-acetic acid ester in the presence of a base, hydrolysing the resulting diester by known method, and opening the ring of the resulting thiazolidine-4-carboxylic acid-N-acetic acid (II) with mercuric chloride. (I) is an important intermediate, esp. for pharmaceuticals.
Patent DE-2502255-A1 (DE)
Title: Prepn. of petroleum sulphonates by sulphonation of crude oil - with sepn. of unreacted hydrocarbons
Inventor: PLUMMER MARK A
IPC: C07C309/62
Filed: 1975-01-17
Abstract: Prepn. of petroleum sulphonates comprises reaction of 5-30 kg SO3 with 100 kg crude oil from which the low-boiling fractions have opt. been removed, at 27-120 degrees C under 0.01-150 atmos. for 0.001-3600 s, in which the unreacted oil is separated from the reaction prodt. which is then neutralised with a base. Used for prepn. of micellar dispersions used in secondary extrn. of oil from underground strata, in flotation processes, cutting oils, insecticide carriers, etc. Sulphonates of suitable quality are obtd. in good yields without formation of tarry prodts., from untreated crude oils. The prepn. can be carried out on the oil field, eliminating transport to and from a refinery. Cost is reduced to a level which makes tertiary oil extn. processes economic.
Patent DE-2505050-A1 (DE)
Title: Rapid descent hang glider - has cable to flatten sail against frame for increasing forward lift
Inventor: KNUTH UWE
IPC: B64C31/06
Filed: 1975-02-06
Abstract: The glider comprises a 3-tube frame spanned by two sails (5, 6), with a crossbar (4) providing rigidity and a pivoted mounting for the control bar (7). It additionally has a rope (8) running the length of the crossbar over the sails, connected at its mid-point via a downhaul (9) and roller to a rope with a toggle or to a lever. Tensioning the downhaul causes the rope progressively to flatten the sails against the crossbar. This change of shape increases the lift from the forward part, reducing the rate of descent. With bars instead of ropes (8), a tilting arrangement will produce the same effect.
Patent DE-2508470-A1 (DE)
Title: Prestressed concrete staves for cylindrical containers - uses cords in slots to effect transverse prestressing
Inventor: DALBRENTA GIANFRANCO VELO DR I
IPC: E04H7/20
Filed: 1975-02-27
Abstract: The containers are esp. for cleaning installations. The staves have a radius of curvature, corresponding to that of the cylindrical container. Each stave has internal reinforcements (3), which allow a prestressed construction of concrete, extending mainly in longitudinal direction, and internally at right angles to the reinforcements. The stave has guide tubes for cores (5) serves for prestress with subsequent binding of the concrete, and for the assembly of the staves (1). The cylindrical surface of each stave, which is subjected to higher tensile stress, has ribs (7), extending in a transverse direction, near the connection lines between individual staves. The ribs form a seat (8), for the cords, and shoulders (9) to clamp them. Each stave has elements to connect it to the neighbouring one.
Patent DE-2509701-A1 (DE)
Title: Motor vehicle steering column switch - has switching slide displaceable in guideway against force of two springs
Inventor: ERDELITSCH HERBERT
IPC: H01H13/64
Filed: 1975-03-06
Abstract: The vehicle steering column switch has switching mechanism for multi-stage switching of different circuits actuated by a lever switching still further circuits. The switching mechanism has a slider (2) which is freely displaceable in a guideway (13, 14) located in the lever (3) actuating direction against the force of two springs (16, 23) on either side of the switching lever point of engagement (48). The lever controls the movement of both the slider and a crank, secured in a housing part via link motions. The crank actuates a rocker (31), rotatably mounted in the housing (1). Preferably the spring force moments are of different values, in order to attain a progressive stepping switching.
Patent DE-2512246-A1 (DE)
Title: Concentrated magnesium sulphate soln prodn - in multiple stirred cascade chamber with recycling, giving greatly increased output
Inventor: HOEFLING ERNST DR
IPC: C01F5/40
Filed: 1975-03-20
Abstract: A method of continuously producing concentrated MgSO4 soln from kieserite consists of supplying kieserite from a metering device through an inlet pipe and clarification zone into the upper part of the first chamber of a multi-stage stirred cascade chamber all the chambers are concentrically mounted one above the other and there is a central, vertical-shaft agitator having two symmetrically radiating blades at each level, each blade being divded into an inner portion and other portion having a length ratio of approx 2:1; the kieserite passes progressively downwards in contraflow at a soln temp of 65-90 degrees C to water entering into the lowest chamber; hot concd MgSO4 soln. is removed from the uppermost chamber, passes through the clarification zone and is supplied, with a solids content of 10-20 g/litre and an MgSO4 concn >400 g/litre to a clarification tank; here, part of the liq. is removed by settlement, and the preconcd. solids are withdrawn, opt passed through a hydrocyclone and returned to the second chamber; residue contg. 50-75% CaSO4 having a 50-70% pulp density is removed from the lowest chamber; this is dried to produce some MgSO4 soln. which is returned, opt. with the mother liquor from the crystallisation of magnesium sulphate into the second lowest chamber. Pref. the dwell time of the conc. MgSo4 soln in the entire chamber is 1-2 hrs; its flow speed is pref. 0.075-0.016 m/sec. The tip speed of the blades is pref. 3.5-4.5 m/sec. The conc. MgSo4 soln is used for the prodn of magnesium sulphate crystals for industrial or medicinal use. The prodn. rate is considerably increased.
Patent DE-2515423-A1 (DE)
Title: Structural connecting-cable wires in plastic bedding anchorage - with malleable layer between cables and clamp surfaces for isostatic pressure transfer
Inventor: KUBIK FRANZ DR
IPC: E04H15/32
Filed: 1975-04-09
Abstract: The connecting cables, as used for carrying suspended roofs, or as tension members for suspension bridges, etc., comprises parallel wires, embedded in a plastic unit, with an abutment and one or more clamp jaws or clamping bodies fitting against a counter surface on the latter. A pliable intermediate layer is interposed between each cable cluster and its alloted clamping surface, by means of which the clamping pressure is transmitted to the unit isostatically. The intermediate layer may be made of soft aluminium or plastic, or may be in the form of fibreglass or otherwise reinforced plastic coating on the end of the cluster which is to be anchored. Compensation is provided for unevennesses between cable cluster and clamping surfaces.
Patent DE-2515997-A1 (DE)
Title: Acidic nitro dyes for dyeing wool, esp leather - obtd by reacting amino-nitro-diphenylamine-sulphonic acids with manganese dioxide
Inventor: HERTEL HASSO DIPL CHEM DR
IPC: C09B51/00
Filed: 1975-04-12
Abstract: Acidic nitro dyes prepd. by condensation of benzoquinone with amino-nitro-diphenyl-amine-sulphonic acids (I) in presence of MnO2 at pH 3-6 is described in the parent patent. The dyes are now obtd. by treating (I) with MnO2 in the absence of benzoquinone, at pH >=3, pref. 3-6 or 6.5-9. The dyes are used for dyeing wool and esp. leather in reddish-or yellowish brown or olive shades fast to light, water and org. solvents. The dyes are water- soluble and resistant to formic acid, formaldehyde and alkali. The modified process avoids the use of benzoquinone which is physiologically harmful and provokes sore eyes.
Patent DE-2522519-A1 (DE)
Title: Compensating circuit for use with filters - is used in phase shift keyed demodulators and uses phase sensitive detector to control VCO coupled to mixing circuit
Inventor: BAKER DERRICK WILLIAM
IPC: H04L27/227
Filed: 1975-05-21
Abstract: A filter circuit for use in a phase shift keyed demodulator and operating with a small band width is coupled to a compensating circuit to provide automatic control of the frequency. The filter circuit consists of two filters (12, 14) coupled in parallel over input and output switching circuits (10, 16). The switching circuits are operated with a square wave input signal of a constant mark/space ratio of 1:1. The input is multiplied (20) and is mixed with the output of a voltage controlled oscillator (VCO). The VCO generates an output proportional to the output of a phase sensitive detector (PSD) operating on the input to the filter and the output after passing through a limiting stage (28).
Patent DE-2523137-A1 (DE)
Title: Motor caravan with detachable living cabin - is lifted off by using car jack and secured by locking struts
Inventor: TISCHER JOSEF
IPC: B60P3/32
Filed: 1975-05-24
Abstract: The convertible motor caravan is based on a pick-up truck (1) on which the detachable cabin is fitted using rapid release cathes. To drop the cabin on a selected site, each end is lifted in turn using the wheel changing jack of the truck. Adjustable struts (5, 6) at the corners of the cabin are dropped to the ground and secured by the coeight of the cabin. The system can be used for camping or for site huts on construction sites.
Patent DE-2533211-A1 (DE)
Title: Imidazole deriv. prepn. - by reacting iminoester or amidine or their salts with alpha-acylamino ketone in liquid ammonia
Inventor: SCHUNACK WALTER PROF DR
IPC: C07D521/00
Filed: 1975-07-24
Abstract: Prepn. of imidazole derivs. having formula (I) is disclosed. (where R1 is H or an opt. substd. alkyl, aryl, alkaryl, aralkyl, cycloalkyl, cycloalkyl- alkyl, alkylcycloalkyl or heterocyclic gp. R2 and R3 are H or opt. substd. alkyl, aralkyl, cycloalkyl, cycloalkylalkyl, alkylcycloalkyl, heterocyclic or heteroaralkyl gp., or -AR4, in which A is -O- or -S- R4 is opt. substd. alkyl, or -NR5R6, in which R5 and R6 have significance of R2 and R3. R7 is H or opt. substd. alkyl, aralkyl, cycloalkyl, cycloalkylalkyl or alkylcycloalkyl). New process takes place by reacting an imminoester (II) or amidine (III) having formula R1-C(=NH)-OR, (II), (where R is lower alkyl) or R1-C(=NH)-NH2 (III), or a salt thereof, with an alpha-acylaminoketone, having formula Acyl-NR7-CHR3-COlR2 (IV), in liquid NH3 under press. Pref. for 5-48 (12-18) hrs. at 50-120 (100) degrees C and 25-80 (35-50) atmos. One-step synthesis process allows introduction of different substituents at C2, C4, C5 and N1. Substituent at C2 is introduced via (II) or (III) and is independent of (IV). (I) are obtd. in good yields.
Patent DE-2534622-A1 (DE)
Title: FEDING METAL FOIL INTO A ROLLING MILl - using transporter with suction heads carrying front end of foil into roll gap
IPC: B21B39/16
Filed: 1975-08-02
Abstract: Device is used for feeding strip material into processing machines, esp. into rolling mills used to mfr. fine strip. Strip transporter which can be driven towards the inlet side of the rolling mill is used. The transporter can pref. also be moved at 90 degrees to the direction of strip travel, and is fitted with a vacuum strip holder using suction heads which extend across the width of the strip. Alternatively, the transported can be fitted with a conveyor belt using suction to carry the strip to the inlet side of the mill. Used for feeding fine strip or foil, e.g. 12 um thick withotu distortion or bending of the strip.
Patent DE-2540783-A1 (DE)
Title: School bag of synthetic fabric with plastic handle - preventing tearing of handle and bursting of side seams
Inventor: ESSL JUN GEORG
IPC: A45C3/00
Filed: 1975-09-12
Abstract: School bag consists of several fabric portions stitched together, consisting of polyamide threads with seams pref. double seams of plastic thread. The handle consists of a flexible plastic strip, pref. >=2 PVC synthetic leather strips between which is a textile inlay and which are stitched together and fixed at the side ends to the fabric portions by rivets, staples, etc. The fabric portions may be lined with a water-repellent layer e.g. an acrylic layer. The handle may be covered with a gripping sleeve e.g. of foamed synthetic leather. Between the ends of the handle and the fabric portions may be attached a ring for attaching a carrying strap. The handle has a tear strength of >=100 kg, does not break even in very cold weather, and always remains soft.
Patent DE-2542148-A1 (DE)
Title: Crash protection for aircraft - with parachutes in compartment on top of fuselage and impact absorbers underneath
Inventor: MOUTIAGAS DIMITRIOS
IPC: B64D17/80
Filed: 1975-09-22
Abstract: The top of the fuselage has a compartment in which a folded parachute is stored. If the engines fail then the compartment is opened and the parachute released. The aircraft is retarded in its descent by the single-or group of parachutes, with the harness at the centre of mass. Impact absorbing struts under the fuselage are extended to reach lower than the wheels. As the aircraft strikes the ground the impact is absorbed by deformable bands around the struts. The system lowers an aircraft safely to the ground when the engines fail, with a minimum of injury to the passengers.
Patent DE-2544510-A1 (DE)
Title: Feline rhinotracheitis vaccine - by attenuation of live virus by serial passage at 25 degree C in cat kidney cells
Inventor: SLATER EBEN ARTHUR
IPC: A61K39/265
Filed: 1975-10-04
Abstract: The attenuated, antigenic cat herpes virus (a) virulent live herpes virus is introduced into a tissue culture, (b) the culture is incubated until evidence of cellular cytophatology is apparent, (c) the virus is collected and introduced into a new tissue culture, (d) serial passage of the virus, in tissue culture is conducted a sufficient number of times at an incubation temp. sufficient to produce a non-virulent live antigenic virus, (e) the attenuated virus is siolated. Used in the treatment and prevention of viral rhinotracheitis in cats which is specific for deoxyribonucleic acid of cats. Young cats may be inoculated with vaccine prepd. from an attenuated virus, either by intraocular or intra-auricular admin. while matl. antibody is still present.
Patent DE-2549344-A1 (DE)
Title: Support bearing for rotating shafts - has convex facing surfaces and holding ring fitting in shaped groove
Inventor: HOEHMANN HEINZ KNUT
IPC: F16C25/04
Filed: 1975-11-04
Abstract: At the contact surface between the shaft and the bearing is a convex profile. The bearing block is held in its seating by an elastic holding ring that is fixed axially relative to the shaft. The holding ring fits in a circular groove in the bearing surface of the bearing support seating. The ring is an O ring and springs into position in the groove. The groove project forward in the direction of the shaft with a shoulder that lies against the facing surface of the bearing shaft.
Patent DE-2559692-A1 (DE)
Title: Hardenable coating or moulding compsn. - comprises the reaction prod. of (meth)acrylic acid with oxazoline or dihydro-oxazine gp. contg. polymer
Inventor: TOMALIA DONALD ANDREW
IPC: C08F271/02
Filed: 1975-11-11
Abstract: The compsn. comprises 20-80 wt. % mainly linear vinyl polymer (I) and 80-20 wt. % reactive monomer diluent. (I) contains units of formula CH2-CR1 -CO-NH-CR2R3 R2R3-(CH2)n-CRjR5-O-CO-CR6=CH2 (where R1 and R are H or Me, R2-5 are H or 1-4C alkyl; and n is 0-1). (I) is prepd. by reacting (meth)acrylic acid with a polymer (II) of mol. wt. distributionr 500-500000 contg. pendant oxazoline or 5,6-dihydro-4H-1,3-oxazine gps. an inert solvent and/or reactive diluent at raised temp. using (a small excess of) 1 mol (meth)acrylic acid per pendant oxazoline or oxazine gp. The coatings or moulding have excellent solvent and weather resistance, high strength and adhesion and good hardness (2H-6H pencil hardness). Crosslinking is easily carried out with free radicals, UV or ionising radiation and there are no polluting or dangerous gases formed. In an example, 2-isopropenyl-2-oxazoline was copolymerised with styrene, the copolymer reacted with methacrylic acid and the prod. dissolved in styrene.