baber/WOPTO huggingface dataset:
Patent DE-2512818-A1 (DE)
Title: High freq vibration reduction in vehicle shock absorber - has telescopic damper mounted in upper and lower elastic damping pads
Inventor: BRANDL HANS JUERGEN
IPC: B60G13/00
Filed: 1975-03-22
Abstract: The independently sprung wheel is mounted at the bottom end of a telescopic damper (5) and is further braced on the chassis by a lateral support brace (4). In order to dampen road vibrations, and prevent their being transmitted to the car body via the damper, the damper (5) is mounted with upper (7) and lower (6) elastic pads. The pads are mounted at the ends of a metal tubular housing (8) which is rigidly attached with its sealed bottom end on the wheel support (3). The elastic pads serve to isolate the damper from high frequency vibrations and also reduce wear in the damper.
Patent DE-2513983-A1 (DE)
Title: Tunnel or heading tubbing ring sealing - has non-flow paste with specified strength applied to specified thickness to fill joint
Inventor: BORCHERT HANS-HEINRICH DIPL IN
IPC: E21D11/38
Filed: 1975-03-29
Abstract: Tunnel or heading concrete ring tubbings joint sealing system involves a self-setting paste mixture as filler. The paste does not flow under pressure and has a cohesive tensile strength of 5kp/cm2. It is applied in sufficient thickness to the joint faces and the ring components are then forced together at sufficient pressure to fill the joint area with the sealing paste, giving a minimum coating of 5mm. The joints (5') should expand (12, 13) towards the wall side facing the pressure load, but over a relatively smaller part of the wall thickness as a whole. The expansions should be wedge shaped with an angled between 10 and 35 deg., produced by bevelling one of the joint sides.
Patent DE-2514416-A1 (DE)
Title: Internal combustion engine with stratified fuel air supply - first part of a normal induction charge is weakened by an auxiliary air feed
Inventor: AUGUST PAUL DIPL ING DR
IPC: F02B17/00
Filed: 1975-04-02
Abstract: The combustion chamber is divided into two sections with one part (5) between the exhaust valve (4) and piston (1) and the second part (6) below the inlet valve (3) which is positioned to the side of the cylinder and contains the spark plug. A carburettor (7) feeds the cylinder(s) via an outlet manifold (8) in the normal manner. Additional air is admitted to the inlet ports via air intake pipe (10) containing a rotary slide valve (9) and a butterfly valve (11). The air intake pipe joins the inlet port as an annular slot (15) of such dimensions that the incoming air, which is pref. preheated, and may consist wholly or partly of exhaust gases, enters the combustion chamber at sonic speed as soon as the inlet valve opens. The auxiliary air intake lasts from 50 - 70% of the inlet valve opening time and is regulated by the auxiliary throttle flap (11) only at slow running and part load range. The rotary slide valve is turned by the engine and timed to open with the inlet valve and remain open for 50 - 70% of the inlet open time.
Patent DE-2515387-A1 (DE)
Title: Optical projector with fresnel lens and internal light source - has concave mirror with less reflective central zone
Inventor: RITZERFELD GERHARD
IPC: G03B21/132
Filed: 1975-04-09
Abstract: The projector, for daylight projection, comprises a Frenel lens, a support plate, a projection lamp (6) and a reflector (7) in the form of a concave mirror, positioned below the projection lamp, all being contained within a common housing, while the projection lens system is positioned above this housing. The latter reflector (7) has a central zone which is less reflective than the surrounding outer part, this central zone having a layer or additional element with a lower reflective coefficient than that of the outer zone, and which is formed or treated so that the two zones of the reflector (7) have a common focus. The central zone of the reflector may have a planar surface or the surface may bulge upwards.
Patent DE-2516144-A1 (DE)
Title: Fire resistant plastic tube sign post - with insulating chamber in retracted neck piece in stabilising tube
Inventor: VOGELSANG FRANZ DIPL ING
IPC: E01F9/608
Filed: 1975-04-12
Abstract: The post, carrying a sign, consists of a plastic tube with a base formed onto this and a joint plate for a sign. A stabilising tube at the base, is fixed in the plastic tube and extends across the area between earth surface and atmosphere, to prevent instability if a surrounding field is burned, or in similar circumstances. The stabilising tube (4) incorporates a retracted neck piece (5) between the end areas, and this incorporates a peripheral insulating chamber (6), between the stabilising tube and the plastic tube (1). The chamber may be filled with expanded perlite, mineral wool or similar insulating media. The stabilising tube may be made of plastic, welded to the other plastic tube in its end areas (7).
Patent DE-2520272-A1 (DE)
Title: Surfactant based washing compsn. contg. little or no phosphorus cpds. - having controlled foaming, good washing properties at lower temps. and good rinsability
Inventor: BOECK ALEXANDER DIPL CHEM DR
IPC: C11D1/52
Filed: 1975-05-07
Abstract: A washing agent, which has controlled foaming and is P-free or has a low P content, has the compsn.: (a) 5-80 (pref 8-40) wt. % of a surfactant mixt. of 1 pt. wt. nonionic surfactant, esp. an ethoxylated 10-20C aliph. alcohol, and 0.15-1 (pref. 0.2-0.5) pts. wt. of a 10-18C fatty acid mono-ethanolamide, (b) 5-90 wt. % of a low P/P-free builder combination contg. =20 wt. % condensed alkali phosphates (esp. Na3PO4) and >=5 wt. % of (b1) org. builders of water-soluble Ca-bonding salts of the lower ether carboxylic salts selected from 2-6C carboxyalkylated alcohols and 3-6C hydroxycarboxylic acids having >=2 carboxy gps. in their mol. and/or (b2) water-insol. org. copolymeric or graft copolymeric builders having a Ca-bonding capacity of >=2 mVal/g, (b3) aminopolycarboxylic acids, (b4) lower molecular (a)cyclic polycarboxylic acids having >=3 carboxy gps. in their mol, (b5) amino- and hydroxy-substd. alkane polyphosphonic acids, (b6) phosphonoalkane polycarboxylic acid having 1-2 phosphono- and 2-3 carboxy gps. in their mol. and (b7) polymeric polycarboxylic acids of mol. wt. >350 as other builders and (c) 5-60 wt. % carriers (powdered or fluid). Foaming is controlled over the whole temp. range of an automatic washing machine without any sacrifice in washing capacity at lower temps. (20-60 degrees C, used for delicates). The compsn. also rinses out well.
Patent DE-2526021-A1 (DE)
Title: Game type power running track for model cars etc. - has endless adjacent track sections with rising and hazard sections
IPC: A63H18/14
Filed: 1975-06-11
Abstract: A running track for games, in partic. for model car tracks consists of several endless adjacent tracks at least one rising section and a section within which incidents or crash type situations may occur. The complex track has a series of individual tracks (2) separated by conductor planking (1). A separately powered follower device is situated in the rising section (3) of the track. A series of deflector devices (6) are situated in the accident section (5) and are adjustable. This arrangement is suitable for non-powered toys. The skill required then lies in jugging the correct amount of pushing to avoid accidents, charge tracks etc.
Patent DE-2534821-A1 (DE)
Title: Pressure difference indicator, esp. for filters - using spring-loaded magnetic piston and external indicator magnet
Inventor: ASSMANN WOLFGANG
IPC: B01D35/143
Filed: 1975-08-05
Abstract: The two pressures to be compared act on opposite ends of the spring loaded piston, whose resultant displacement is a measure of the difference between the pressure. The motion is transmitted to the externally mounted indicator. According to the novelty, the indicator magnet is mounted on an axis perpendicular to the direction of motion of the piston and can rotate about the axis. The poles of the indicator magnet are diametrically opposed about the axis, which passes through the centre of gravity of the magnet. The influence of static friction and the weight of the indicator are eliminated.
Patent DE-2540577-A1 (DE)
Title: Coupling field for TDM transmission - has selectively switched spare coupler as replacement for defective units
Inventor: KNORPP EBERHARD DIPL ING
IPC: H04Q11/06
Filed: 1975-09-11
Abstract: The PCM multiplex coupling field arrangement connects multiplexed groups of eight incoming conductor pairs through coupling-field units to demultiplexers which then transmit the outgoing information in groups of eight line-pairs. One part of the time multiplex coupling field (A) contains eight stages (K1 .. K8) and the second part (B) has ten stages (K1 ... K10). The eighth stage of the first coupler is used as a spare (K8). The two parts are interconnected via groups of ten intermediate lines. Groups of six lines on the output side connect with the multiplex transmission lines (U) (MD1 .. 6). By means of special switching and monitoring unit, the multiplex-demultiplexers (MD1 .. 6) can be selectively connected to the spare coupling unit (K8) if one of the units (K1-7) of the coupling field (A) becomes defective.
Patent DE-2553037-A1 (DE)
Title: Safety catch for car bonnet and boot - with automatic servo bolts on internal flanged edges to stay shut in collision
Inventor: REIDELBACH WILLI PROF DR ING
IPC: E05B65/42
Filed: 1975-11-26
Abstract: The edges of the hinged covers of the car body have flanged shapes to press against each other in a collision displacement. An angled bracket (2) is fixed on one flange and is locked by a servo (7) operated bolt (8) when the engine is running. The other flange fits into a slot made by the servo support (3) and an internal flange. Several servo bolts secure each hinged cover and hold the flanges together for added crash resistance. This reduces damage and enables the covers to be prised open after a collision.
Patent DE-2553176-A1 (DE)
Title: Backstitch seam sewing process - uses stationary fabric while under loops are formed for lower thread to be drawn through
Inventor: GOULET MICHEL BERNARD
IPC: D05B1/00
Filed: 1975-11-27
Abstract: In a backstitch sewing process, a sewing machine is used to cross the loops of the upper and lower threads. As the needle penetrates the fabric with the upper thread, forming a loop on the underside of the material, the lower thread is passed through at right angles to the plane of the loop. The stitch is knotted when all the loops have been secured by the lower thread, the fabric remaining stationary while the seam is being executed. The conventional cop for the lower thread is eliminated which, in a conventional sewing machine, has to be changed every 3-4 mins. at high working speeds. The result is less stoppages and less attention to the equipment by the operative.
Patent DE-2601567-A1 (DE)
Title: Hysteresis motor control circuit - permitting overmagnetisation of rotor at regular intervals uses low frequency signal generator
Inventor: MIYASHITA KUNIO
IPC: H02P23/26
Filed: 1976-01-16
Abstract: The apparatus seeks to take advantage of the fact that the efficiency of a variable speed hysteresis motor may be improved by momentary overmagnetisation of its rotor. To achieve this end the converter (2), normally comprising a constant frequency rectifier (20) and a variable frequency inverter (25), which feeds the motor (1) is coupled with a low frequency signal generator (43). The LF control signals pass to an amplifier (42) which causes a controlled rise in the motor voltage amplitude thus causing the desired overmagnetisation. The circuit may be used to drive one motor or several in parallel.
Patent DE-2603222-A1 (DE)
Title: Automatic lubricant replenishment system for engines with sump - includes mercury switches preventing overfilling when engine is at angle
Inventor: SCHWARZ HEIKO GUENTHER FRIEDRI
IPC: F01M11/04
Filed: 1976-01-29
Abstract: Lubricant replenishment system restores sump oil level automatically from an outside reserve each time the engine is stopped, and several alternative layouts are given, eg electric operation, closed reservoir. An ignition-linked valve in the line to the sump permits flow only when the engine is stopped; the line enters the sump at the desired level so that flow stops when the oil reaches this. Electric operation, open reservoir, is controlled by a float switch at the desired level in the sump, wired into the circuit as required. Pneumatic operation, closed reservoir. The top of the reservoir is connected to the air intake system so that the reservoir is under vacuum when the engine is running. This draws a ball valve in a goosenecked vertical pipe in the sump against its seat. The valve is also lifted against its seat when the oil reaches the desired level.
Patent DE-2613582-A1 (DE)
Title: Microscope specimen slide for studying fluids - has transparent plate and two perpendicular capillary tubes
Inventor: FIEL RAUL ALONSO
IPC: G02B21/34
Filed: 1976-03-30
Abstract: The microscope specimen slide, used for studying fluids e.g. blood samples, has a transparent glass or plastics plate (1), sandwiched between two metal frame plates (3), with a screw (4) at each corner for holding the structure together. A metal capillary tube (2) is screwed into a perpendicular bore on two opposing sides of the transparent plate (1). The surface of the transparent plate (1) has a rubber coating except for a small area defining a groove (5), extending between the facing ends of the capillary tubes (2), so that the fluid flow is guided between the latter across the microscope specimen plane.
Patent DE-2619609-A1 (DE)
Title: Carrier prodn. from montmorillonite and alkoxy-silane - with organo-functional alkoxy gp., for fixing pharmaceuticals, dyes etc.
Inventor: BLUEMCKE ALFRED DIPL CHEM DR
IPC: B01J20/32
Filed: 1976-05-04
Abstract: Prodn. of a carrier material (I) contg. reactive gps. is carried out by reacting mont morillonite (II) with silanes (III) contg. organo-functional alkoxy gps. Pref. (II) has a residual moisture content of 0.5-10 pref. 2-5 wt. %. Reaction takes place in the alcohol corresp. to the alkoxy gp. of (III) at the b. pt. of the alcohol. (III) can contain an amino, mercapto or epoxy gp. In an example (II) was boiled with a soln. of gamma-aminopropyltriethoxysilane in EtOH. The prodn. contained 0.7 % N, i.e. ca. 2.9% aminopropyl gps. (I) can be used for insolubilising and fixing sensitive substances, e.g. pharmaceuticals, dyestuffs, proteins and biogenic agents. The fixed substances are readily available for further processing or for use without redissoln., which always leads to some loss. A mixt. of 100g(II) (2-5 wt. % moisture) and a soln. of 100 g gamma-aminopropyltriethoxy-silane and 720 g EtOH was boiled for 30 min. then decanted. The prod. was washed neutral with water and dried to constant wt. at 110 degrees C and 14 torr in 2-3h. The carrier contained 0.7 % N, i.e. ca. 2.9% aminopropyl gps.
Patent DE-2620018-A1 (DE)
Title: Switch gear with impact dependent tripping - has separate conductor on inner walls of hollow body cooperating with magnetically held contacts
Inventor: ULRICH ANTON
IPC: H01H35/14
Filed: 1976-05-06
Abstract: The switchgear is intended for motor vehicle application, in order to automatically operate electric devices such as a warning flashlight, a horn, a radial link etc. It contains an enclosed hollow body whose inner walls are lined circularly with separate conductor lines which, when connected, make the circuits for the respective electric appliances. Inside the hollow body are secured contact elements by a magnetic force. At a heavier impact these elements are released and actuate a connection of the separate conductor lines, thus making the circuits for automatic operation of the vehicle mounted devices.
Patent DE-2633093-A1 (DE)
Title: Switch containing closed volume of gas - has tubular movable contact and insulating head at its end aiding quenching of arc
Inventor: PRAETSCH RUDOLF DIPL ING
IPC: H01H33/70
Filed: 1976-07-20
Abstract: A fixed contact and a movable tubular contact are provided in the gas vessel. In the closed position the movable contact passes through an insulating nozzle in the gas vessel. The movable contact (12) has at its front end an insulating head (13) bridging at least a part of the distance between the fixed contact (5) and the nozzle (15). A guiding element (16) for gas flow is provided in the gas vessel (1) which at least partly surrounds the insulating head (13) in its open position.
Patent DE-2637047-A1 (DE)
Title: Friction welding three parts together - where a conical shaft is rotated and then welded in a hole in two other parts
Inventor: STEINEL WINFRIED
IPC: B23K20/12
Filed: 1976-08-18
Abstract: Several parts are joined together by friction welding, esp. three parts made of the same or different materials. At least one part (a) is provided with a conical zone inserted in two coaxial holes, one hole being present in each of two parts (b,c); and the conical zone on part (a) is in contact with the edge of one or both holes at the start of rotation of part (a) to make the weld. The holes are pref. round and of different dias., and the weld is made between the conical zone on part (a) and the two holes. Alternatively, both holes may be conical and mate with the cone on part (a), which is e.g. a shaft. Provides inexpensive method, using a single-spindle friction welding machine esp. to join a rod or shaft to two plates in a single welding operation. The plates may have the same or different thickness.
Patent DE-2639427-A1 (DE)
Title: Unit for transporting and storing coiled metal strip - has high store on opposite sides of workshop connected by transport tracks to production positions
Inventor: TAUBMANN HARRO DIPL ING
IPC: B21C47/24
Filed: 1976-09-02
Abstract: Unit for transporting and storing and non cutting handling of heavy rolls of coiled metal strip in a workship with working and finishing positions spaced in its longitudinal direction. Along both opposie sides of the workshop (20) is located a high store (21, 22) consisting of several parts and served by shelf conveying units (24, 25, 42). Between the row of shelves of the high store (21, 22) is located a number of overlapping and parallel storage lanes (26, 27, 42) and between the working and finishing positions (31, 32, 33, 35) and the high stores (21, 22) are lateral tracks (34) along which the intermittent flow of material takes place. The high store (21) consists of three parallel storage rows (251, 282, 283) of which the outer rows 211, 282) have an equal length but are relatively displaced in longitudinal direction. The middle row (282) is projecting from the beginning of the first row (281) to the end of the third row (283). The high store (22) has four parallel storage rows (221, 222, 223, 224) between which are located three storage lanes (43) for shelf conveying units (421, 422, 423).
Patent DE-2643667-A1 (DE)
Title: Delay network for echo suppressors - has circuit board with main components on one side and delay time coils mounted on other side
Inventor: WELLER KLAUS ING GRAD
IPC: H04B3/20
Filed: 1976-09-28
Abstract: The delay network comprises time delay coils, capacitors and at least one circuit board on whose component side echo controllers (trimmers) are mounted. Holes are made in the case front side for the echo controllers' adjustment. The circuit board component side faces the case front plate. Time delay coils are mounted on supports on the circuit board other side, and their tappings pass through holes in the board and are soldered on its component side.
Patent DE-2644015-A1 (DE)
Title: Cutter support in bar stock shears - has lever between relatively adjustable cover plates on shaft to resist impact loads
Inventor: REGENBRECHT LUDWIG
IPC: B23D17/00
Filed: 1976-09-30
Abstract: The support cutting levers esp. for shears for cutting bar stock is designed to eliminate damage to the support caused by the impact loading. The cutting lever (3) is mounted with double-sided play on a shaft and has a frame plate (1, 2) positioned either side of it. The shaft is secured against axial displacement by cover plates (11, 15) of which one (11) is coupled without play on one side and the other (15) is connected to the opposite side but at a short distance from it. This distance is regulated by an adjusting screw (18) passing through the plate. The outer edge of this plate (15) face rests against the face (16) of a bearing liner (14).
Patent DE-2650342-A1 (DE)
Title: Activator system for aq. emulsion polymerisation of chloroprene - comprises a mineral peroxy cpd., an alkali salt of anthraquinone-(2)-sulphonic acid and formamidine sulphinic acid
Inventor: PETTELKAU HANS-JUERGEN DR
IPC: C08F2/22
Filed: 1976-11-03
Abstract: Chloroprene is (co)polymerised, opt. with up to 50 wt.% comonomers, in neutral, acid or alkaline aq. medium in the presence of known surface active agents, using an activator system consisting of (a) a mineral peroxy cpd., (b) an alkali salt of anthraquinone-2-sulphonic acid and (c) formamidine sulphinic acid (I). Pref. the total amt. of (a)+(b)(c) used in 0.02-0.6 wt.% on monomers and the activator compsn. contains 4.5-25 wt.% (a) 0.5-2.5 wt.% (b) and 95-50 wt.% (c) with a wt. ratio na):(b)=2:1 to 10:1. The alkali salt (b) suppresses the induction period of the mineral peroxy cpd., while the formamidine cpd. (c), which is pref. added continuously during the polymerisation, controls the decomposition of the peroxy cpd. to give uniform release of initiator throughout the polymerisation. This gives lower consumption of activator and allows polymerisation to be carried out at lower temps. than with prior art catalyst systems. The resulting polymers are uniform and have a reduced gel content, while the formation of deposits on the reactor walls is eliminated. The stable viscosity polymer lateices produced are useful e.g. in the prodn. of adhesives.
Patent DE-2650658-A1 (DE)
Title: S-Triazine prodn. from formamidine acetate and orthoformate - avoiding use of hydrocyanic acid and giving high yield of pure prod.
Inventor: BREDERECK HELLMUT PROF DR
IPC: C07D251/24
Filed: 1976-11-05
Abstract: Prodn. of s-triazine (I) comprises reacting formamidine acetate (II) with >=2, pref. 2-2.4 moles of a 1-6C alkyl orthoformate (III) at >120, pref. 130-160 degrees C. The volatile reaction prods. and then the (I) formed are distilled out, and (I) sepd. conventionally from the combined distillates. Pref. (II) is made by reacting NH4 acetate and an orthoformate and is used without further purification. (I) is used in synthesis of heterocycles. In an example, reaction of 20.8 g (II) and 58.8 g. triethyl orthoformate at 135-140 degrees C gave an 80.6% yield of pure (I).
Patent DE-2652003-A1 (DE)
Title: Glycolic acid prodn. from formaldehyde precursor and formic acid - in liq. phase over strong acid catalyst, useful e.g. in textile processing, as disinfectant etc. (BE 16.5.78)
Inventor: LEUPOLD ERNST INGO DIPL CHEM D
IPC: C07C51/367
Filed: 1976-11-15
Abstract: Prepn. of glycolic acid (I) comprises reacting paraformaldehyde and/or trioxan with formic acid (II) in the liq. phase at 70-200 degrees C., esp. 90-180 degrees C. in the presence of a strong acid catalyst. Pref. the catalyst is H2SO4 or an organic sulphonic acid, and a pref. solvent is acetic acid. (I) is used in textile, leather and fur processing; in cleaning or plating metals; for disinfecting dairy equipment; for purifying drinking water sources; and for pH control in cooling water to reduce scale-formation in heat exchangers. Using (II) instead of CO improves safety of the process and allows lower pressures (even atmospheric) to be used.