baber/WOPTO huggingface dataset:
Patent DE-3004757-A1 (DE)
Title: Ammonia and hydrogen sulphide removal from gases - with two-stage hydrogen sulphide scrubbing and combined acid gas stripping
Inventor: VOLMARI JOSEF ING GRAD
IPC: B01D53/14
Filed: 1980-01-24
Abstract: Removal of NH3 and H2S from gases (esp. coke-oven gas) is effected by scrubbing with water to remove NH3 and 2-stage scrubbing with a NH4OH soln. and an alkali metal hydroxide soln. to remove H2S, with the improvement that the liquors from both H2S scrubbing stages are combined and freed of H2S and HCN in at least one stripper column. The gas is passed successively through 4 scrubbers. The 1st is operated with deacidified NH3-contg. recycle water and liquor from the 2nd scrubber to remove 30-60% of the H2S. The 2nd scrubber is operated with recycled NH3 gas and liquor from the 3rd scrubber to remove 30-80% of the H2S. The 3rd scrubber is operated with water to remove NH3. The 4th scrubber is operated with NaOH soln. to remove residual H2S. The liquors from the 1st and 4th scrubbers are combined and introduced into 2 parallel stripper columns for removal of H2S and HCN. The bottoms stream from one column is recycled to the 1st scrubber and the bottoms stream from the other column is passed to a NH3 stripper column, and the NH3 is recycled to the 2nd scrubber. The process uses no more than the optimum amt. of alkali metal hydroxide.
Patent DE-3005384-A1 (DE)
Title: Monolithic integrated semiconductor unit - is made by forming conductive and insulating zones with boron ion implantation for depletion channels (NL 19.8.80)
Inventor: CURRAN PATRICK A
IPC: H01L21/8248
Filed: 1980-02-13
Abstract: The method of making a monolithic integrated semiconductor device with vertical and lateral NPN, P-JFET, P-MOS, and D-MOS elements, includes forming these elements on the surface of a monocrystalline P conductive substrate by selectively forming an N + zone. An upper layer of n conductive semiconductor material on this zone at each point where a diffusion MOS element or a lateral NPN element is to be formed. Insulating PN transition zones are formed between P + zones, through the epitaxial layer. In the selected zones, a thin doped P-conductive surface is formed and another in the D-MOS regions. Further zones are formed for source and drain zones, and for the collector and emitter contacts. The gate insulators are selectively formed and the concentrating voltage for the P-MOS elements is applied. Boron ions are implanted to form the depletion channels for P-MOS and P-JFET elements and contacts and metallising are added.
Patent DE-3006139-A1 (DE)
Title: Sepn. of two castings made in double mould with one runner system - where wagon moving castings to core extn. station carries clamps applying shear stresses to break runners
Inventor: QUEDNAU HORST
IPC: B22D29/00
Filed: 1980-02-19
Abstract: Two castings are made in a mould using a single downstick, which is connected to the castings by runners. The assembly of castings complete with the runner system rests on a wagon moved along a track so it is below a bridge carrying several pairs of clamps. Two pairs of clamps move the two castings in opposite directions while a third clamp holds downstick, so the runners are broken off the two castings in one operation. The two castings are then transported to the next process operation. The pref. machine consists of an overhead frame carrying a driven wagon, in which a bridge is driven vertically via a hydraulic cylinder; bridge carries several clamps.
Patent DE-3008355-A1 (DE)
Title: Refrigerator for aircraft galleys - using dry ice vapours passed through capillary nozzle and venturi tubes
Inventor: NORDMANN JUERGEN
IPC: F25D7/00
Filed: 1980-03-05
Abstract: A refrigerator evaporates the solid or liquid refrigerant in a separate container at a pressure above the working pressure and at a temp. below the working temp. The refrigerant vapour is discharged at a high flow velocity from the container, is evaporated in two Venturi tubes, and directed into the refrigeration space after its velocity has been reduced. Such a refrigerator combines a low weight with small overall dimensions and does not coat the food packages with a layer of ice and water.
Patent DE-3008557-A1 (DE)
Title: Platform of adjustable height for use in theatre - is raised or lowered by scissor links actuated by screwed rod
Inventor: EISENBERG HANS JOCHEN
IPC: B66F7/06
Filed: 1980-03-06
Abstract: The platform of adjustable height for use on the stage of a theatre consists of a rectangular frame (2) supported on a base (3) by pivoted struts (5,6). The upper end of each longer strut (6) is pivoted to a block which can slide along the side of the frame (2) and then locked to secure the frame (2) at the required height. The height adjustment of the platform is considerably eased by the addition of two pairs of scissor-like struts (14,15). The lower ends of these struts have rollers (17) which run in guides (19) attached to the base (3). The upper ends of the struts are fitted with similar rollers running in guides (18). The platform is raised or lowered by rotating a screwed shaft (24) with opposite hand thread at each end. This shaft engages tapped holes in blocks (22,23) attached by bars (20,21) to the rollers (17).
Patent DE-3010202-A1 (DE)
Title: Alpha-olefin polymerisation - using catalyst component obtd. by two=stage treatment of magnesium-halogen cpd. with e.g. titanium tetra:chloride and aluminium cpd.
Inventor: KURZ DIETER DIPL CHEM DR
IPC: C08F4/64
Filed: 1980-03-17
Abstract: Polymerisation is carried out (dis)continuously in the gas phase or in a hydrocarbon dispersant at 2-40 bar/60-100 deg. C, opt. with H2 as mol. wt. regulator, using as a catalyst component an activatable material obtd. by successive two stage treatment of a solid starting material contg. Mg and halogen. In the first stage (A) the starting material is treated with an alkoxy cpd. of an element of main or sub-gp. I,II,III,IV, V and/or VI and with a halogen-contg. metal cpd. of sub-gp. IV and/or V. In stage (B) treatment is with a halogen-contg. metal cpd. of sub-gp. IV and/or V and with an organometallic cpd. of main gp. II and/or III. In an alternative process stage (B) precedes stage (A). Activation of the catalyst obtd. is pref. by addn. of an organo-Al cpd. The solid starting material is pref. obtd. by reacting a hydrocarbon-sol. Mg cpd. and a 1-6C chloro-hydrocarbon (cpd.) contg. at least directly bonded Cl atoms. Polyolefins of wide mol. wt. distribution are obtd.
Patent DE-3010897-A1 (DE)
Title: Lock for safety belts with one strap fixed to vehicle mounting - has two lock plates held by snap action onto intermediate spacer
Inventor: LORENZEN SOENKE
IPC: A44B11/25
Filed: 1980-03-21
Abstract: The lock comprises two parallel spaced lock plates (10,11) with at least one spacer (12) in between wherein at least one stud-like projection (18) is provided as the connecting means on the top and bottom of the spacer (12). This projection is ds designed so that it can be inserted into the appropriate opening in each lock plate (10,11) where it is then secured by a self-locking action. The stud-like projections are pref. designed as holders for the lock plates and become secure by the resilient snapping in of a projecting component part. The lock is easily assembled merely by pressing the locking plates onto the projections where they are secured in the unstressed state. When stressed the transverse forces acting in the belt are sufficient to prevent the plates from splaying out.
Patent DE-3023809-A1 (DE)
Title: Insulated wire conductor contacting system - involves inserting dished disc with strip pointing towards conductor and forming contact fingers
Inventor: DZIENGEL HANS-JOACHIM ING GRAD
IPC: H01R4/24
Filed: 1980-06-25
Abstract: In the contacting system a dished contact disc (5) is inserted onto the insulated conductor (9). The disc having strips pointing towards the conductor. The contact fingers (7), formed by the slotting of the disc, are pressed through the insulating sheath against the conductor by flattening of the disc. The contacting device comprises a sleeve (2) with a cylindrical cavity (4) for a plunger (1). The sleeve has a flat bottom (3) as a stop for the plunger. Both the sleeve and plunger have a concentric bore (8) for the insulated conductor. The contact disc insertable between the sleeve and plunger has at least three flexible contact fingers, starting from an outer ring (6) of the disc and directed radially inwards. Pref. the sleeve walls (11) has axis-parallel slits (10) in the region of the sleeve cavity, in order to provide flexible spreading.
Patent DE-3029218-A1 (DE)
Title: String tensioning peg for guitar - has inclined bore and cross-bore side by side by inserting end of string
Inventor: HOINS GERHARD
IPC: G10D3/14
Filed: 1980-08-01
Abstract: The string tensioning peg (1) is intended for a string instrument, particularly a guitar. It comprises a cross-bore (6) at right angles to the peg axis, through which the end (8) of the string (7) is passed. Another bore (5) is treated at an angle to the peg axis, via which the string is inserted before being placed in the cross-bore. The two bores are pref. arranged side by side in a common plane. The outer surface of the peg may have an annular recess between the two bores. The cross-bore may connected with a coaxial bore extending to one end of the peg.
Patent DE-3033025-A1 (DE)
Title: Punched card controlled hand held control unit - has pistol grip unit with range of input and output instruments and LED display elements
Inventor: KADERABEK MILOS
IPC: G05B19/14
Filed: 1980-09-02
Abstract: A hand held unit with pre-programmed data card is designed for portable use as a multi-instrument data collection system. The unit has a pistol type grip (2) with a socket (3) coupled to a base. The main housing (1) has a series of setting knobs for double potentiometers (5), adjusting knobs for stage switching stages (6) and slide switches (7). LED display elements (8) are included for display of monitored parameters. At the top edge a guide slot (9) is provided for the entry of the data card. Bushes (11) provide location for guide pins on the front panel cards relating to use on a specific process. The rear surface of the unit has a range of input/output devices, e.g. microphone, loudspeaker etc.
Patent DE-3039257-A1 (DE)
Title: Cable guide grommet for passing through floor plug grommet - allows cable to pass through floor while maintaining sealed condition
Inventor: DHEIN KARL-HEINZ
IPC: H02G3/22
Filed: 1980-10-17
Abstract: The guidance grommet for use with electrical cables is intended for use where a cable is to be passed through a space between double floor sections in air conditioning systems. The electrical cable (8) is to pass from the space below a top floor section (2) in such a way that the space remains sealed. The cable has a grommet (6) produced in a flexible material that is split (61) to allow location. The grommet is located in a hole in the floor (3) and provides total sealing. Unused holes are sealed with plugs (7).
Patent DE-3039494-A1 (DE)
Title: Reinforced concrete noise screen wall panel - has holes linking full length parallel cavities with sound absorbing surface
Inventor: LOOS WILHELM
IPC: E01F8/00
Filed: 1980-10-20
Abstract: The structural element in a wall providing protection from noise, along traffic routes is in the form of a slab of reinforced concrete. The panel (1) has continuous parallel cavities (2) along its entire length, connected to its sound-absorbing surface (4) by apertures (3). The cavities may be partially or wholly filled with sound-absorbing material. Apertures can be in the form of rows of holes, and/or continuous slots, and their bottom can slope downwards from the lowest point in the cavities. This is economical and widely applicable, and combines good noise screening with ease of assembly and of section replacement.
Patent DE-3040118-A1 (DE)
Title: Positive opening system for parachute - involves device ejecting canopy from pack and pulling shrouds taut, then opening canopy starting from base
IPC: B64C31/028
Filed: 1980-10-24
Abstract: The procedure for positively opening a parachute is based on having a propellant which releases from its pack, and subsequently unfolds, a parachute canopy. This is connected with a pilot directly via shrouds or indirectly via a flying body such as a hang glider. The pack is made in two parts. One part carrying the parachute is accelerated away from the other, enveloping, part into the airstream until the shrouds connected to one part via the parachute and the other directly are taut. The directionally-acting accelerator system used for this then splits a wrapping around the canopy from its base - nearest the pilot - towards its apex.
Patent DE-3043216-A1 (DE)
Title: Spectacle nose pad fixture - has lateral knob on bracket inserted through clearance bore in heated pad to be captive in lateral slot
IPC: G02C5/12
Filed: 1980-11-15
Abstract: The arrangement is intended for securing a nose pad to a bracket (14,13,16) fixed to a rim (11) of a spectacle frame. The bracket has a downwardly extending portion which fits in a longitudinal bore (24) in the pad. The pad is a hard thermo-plastics material which is not permanently deformed at normal adjusting temp. Clearance in the bore (24) permits free movement of the pad around the bracket. This bore connects at its lower end with a laterally extending (Q1) slotted opening (29) whose axis is at right angles to that of the bracket portion. The lower end of this portion has a rounded lateral extension which fits in the slot and can be inserted through the bore when the pad is heated.
Patent DE-3048564-A1 (DE)
Title: Starting choke for IC engine carburettor - has upstream intake flow-operated choke to control additional fuel during start=up
Inventor: MEYER OTTO
IPC: F02M1/02
Filed: 1980-12-22
Abstract: The i.c. engine carburettor comprises a main throttle (2) downstream of a venturi (5). The mixture inlet (4) is connected (9) to a mixing duct (10) provided with an air correction orifice (12) and with a fuel jet (13) which controls the fuel supply from a float chamber (23). An upstream eccentric choke disc (8) opens against a spring (17) under the action of the intake air flow. It is coupled (14,15) to a control mechanism, e.g. a valve cone (19) and needle (20) with a seat (25) in the duct (22) leading to needle-controlled orifice (33) and to a further orifice (21). Both orifices are parallel to the fuel jet (13). This mechanism, together with the main throttle-operated (26-28) needle (29), controls parallel fuel contributions to the mixture during engine start-up and heat-up.
Patent DE-3103241-A1 (DE)
Title: Surface-flush seal, especially for formwork for the casting of precast concrete parts
Inventor: GAERTNER FRANZ
IPC: B28B7/00
Filed: 1981-01-31
Abstract: The seal possesses a seal profile which consists of deformable material, such as rubber, and is received in a groove and which has an inner deformation cavity extending in the longitudinal direction of the profile and, in the non-deformed state, projects with part of its cross-section beyond a contact surface, in which the groove receiving the seal profile extends. At the same time, means for spreading the seal profile apart laterally during its deformation into the receiving groove are provided in the region of the deformation cavity, so that, whenever the part of the profile cross-section projecting out of the receiving groove when the seal profile is non-deformed is deformed into the receiving groove, the seal profile not only experiences a prestress coming within the scope of its elastic deformability, but is spread apart laterally in such a way that an increased surface pressure occurs between the groove walls laterally limiting the receiving groove and the corresponding outer surfaces of the seal profile.
Patent DE-3109496-A1 (DE)
Title: Method for noise pulse elimination in telephone PABX systems
Inventor: MATZKU DIETER
IPC: H04Q3/62
Filed: 1981-03-12
Abstract: The invention relates to a method for noise pulse elimination in telephone PABX systems in which, in the case of incoming direct-dial exchange traffic, a long-distance signal is transmitted to the PABX system via a long-distance transmission circuit along with the dial pulses at the start of the first dial pulse string. The intended object of the invention is to prevent the noise pulse which occurs when the long-distance signal is de-activated from corrupting the evaluation of the dial pulse strings. To achieve this, a temporally pre-defined monitoring period elapses after the long-distance signal has been identified and, if the pulse counter reading is 0 at the end of the monitoring period, the pulse counter reading is incremented by 1. <IMAGE>
Patent DE-3119106-A1 (DE)
Title: Washing machine with a washing drum and lye drum
Inventor: KARAU GERNOT
IPC: D06F39/04
Filed: 1981-05-14
Abstract: In a washing machine with a washing drum (1) and lye drum (2), the lye drum (2) and preferably also the washing drum (1) have the form of a polygon in a section perpendicular to the drum axis (4), thereby achieving an improvement in the washing result. <IMAGE>
Patent DE-3120892-A1 (DE)
Title: Head restraint for motor-vehicle seats
Inventor: BUTZ EUGEN OTTO
IPC: B60N2/48
Filed: 1981-05-26
Abstract: Published without abstract.
Patent DE-3120960-A1 (DE)
Title: Fuel feed device
Inventor: BLAZEJOVSKY WALTER
IPC: F02M37/22
Filed: 1981-05-26
Abstract: Device for feeding fuel, preferably diesel fuel, to an engine, especially diesel engines, with a feed line and with a filter and, where necessary, with a feed pump, at least one heating element being provided in the feed path of the fuel in the surface of the filter, the heating element only extending over a part, for example 5-50% of the surface of the filter element for partial melting of any paraffin precipitates of the fuel.
Patent DE-3122168-A1 (DE)
Title: Electronic active-energy meter
Inventor: GAMOH RYOUJI
IPC: G01R21/06
Filed: 1981-06-04
Abstract: The invention relates to an electronic watt hour meter or active-energy meter with a pulse-width modulation circuit (14) which converts a voltage signal proportional to the load voltage across feed voltage lines into a pulse-width keying signal. In addition, a current/voltage converter (25) is provided which converts a current signal proportional to the load current on or in the feed voltage lines into a voltage signal. A multiplication circuit (31) outputs the product of the voltage signals under the control of the pulse-width keying signal as a pulse signal which is proportional to the instantaneous power consumption of the feed voltage lines. A filter circuit (32) integrates the pulse signal of the multiplication circuit (31) to form an integrated voltage signal. A voltage/frequency converter (35) converts the integrated voltage signal into a pulse signal which is proportional to the consumed power of the feed voltage lines. An automatic compensation circuit (46) integrates the pulse signal of the voltage/frequency converter (35) to form a feedback signal which is supplied to the input of the voltage/frequency converter (35) as a result of which the inherent offset voltage is eliminated which is caused by the pulse width modulation circuit (14), the current/voltage converter (25) and the voltage/frequency converter (35). <IMAGE>
Patent DE-3125042-A1 (DE)
Title: Connection device for metal profiles or tubes for the production of frame structures
Inventor: JAEGER TILO DR ING
IPC: E06B3/968
Filed: 1981-06-26
Abstract: The connection device for metal profiles (6, 7) for the production of frame structures for windows, doors, façades or the like has a corner connector (1), the connector leg (4) of which has an expansion plane (2) which extends to the bridges (3) at the end of the connector legs. In order to accommodate an expanding means, the connector legs are each equipped with a graduated through-passage (5). The connection surfaces of the corner connector are provided with an adhesive layer which consists of a hot-melt-type adhesive to which there is added either admixtures which have an elastic effect or a blowing agent which works under the action of heat. After activating the hot-melt-type adhesive by the action of heat at the end of mounting the parts to be connected, the air gaps between the corner connector and the pushed-on profiles is completely filled with adhesive, with the result that a connection with high adhesive strength is obtained. <IMAGE>
Patent DE-3125521-A1 (DE)
Title: Air-cushion system for a glass tube street
Inventor: PANARELLO SALVATORE CHARLES
IPC: B65G51/03
Filed: 1981-06-29
Abstract: A device for supporting hot glass tubing drawn from a source of molten glass on an air cushion. A horizontal elongate chamber is arranged beneath the drawing path of the tubing, and an increased air pressure is maintained in the chamber. The top wall of the chamber has a V-shaped notch in vertical section, within which the tubing is arranged, and one or more openings or slots which extend transversely to the apex section of the top wall and effect an upwardly directed air flow from the chamber, which serves to support the drawn tubing. The dimensions of the openings are selected depending on the diameter and weight range of the glass tubing to be supported, and the air pressure is selected depending on the same variables. The upper sections of the tubing can be cooled by a stream of air in order to prevent the tubing from bending. <IMAGE>
Patent DE-3125990-A1 (DE)
Title: Process for preparing imidazole derivatives
Inventor: TASIRO TOMOYASU
IPC: C07D233/64
Filed: 1981-07-01
Abstract: The invention relates to a process for preparing 4-methyl-5-[(2-aminomethyl)thiomethyl]imidazole of the formula  (1st formula) <IMAGE> characterised in that 4-methyl-5-hydroxymethylimidazole of the formula  (2nd formula) <IMAGE>  is reacted with a 2,2-disubstituted thiazolidine of the formula  (3rd formula) <IMAGE> in which R1 and R2 in each case denote an alkyl or phenyl group, or R1 and R2 together form a ring. A compound of the above formula (3) has already been prepared from cysteamine or from 2-aminoethanethiol sulphuric acid. In accordance with the invention, problems such as the instability of cysteamine and the formation of sulphuric acid as a byproduct from 2-aminoethanethiol sulphuric acid can be overcome by using a compound of the above formula (2) instead of the said compound. High reactivity can be achieved with the process according to the invention: the product can be quite readily purified and the desired product can be obtained at low cost.
Patent DE-3128350-A1 (DE)
Title: Device for sensing a disc cam, in particular for optical-mechanical scanning systems
Inventor: ZAPP WOLFGANG ING GRAD
IPC: F16H25/16
Filed: 1981-07-17
Abstract: To tranmit the rotary motion of a first element, e.g. a rotating scanning element (2) for horizontal scanning, to a second element, e.g. an oscillating mirror (3) for vertical scanning, rotatable about an axis (A2) perpendicular to the axis (A1) of rotation of the first element, a sensing element (4) which rests resiliently against the disc cam (1) is mounted so as to be non-rotatable in the circumferential direction of the disc cam but tiltable transversely to the disc cam on the end of a lever arm (5) which can tilt about an axis (A2) perpendicular to the axis (A1) of rotation of the disc cam (a). Also provided is an arrangement (20) which wets the circumferential surface of the rotating disc cam with lubricant. The movable mounting of the sensing element (4) allows line contact of the sensing element with the disc cam even during the rotation of the disc cam and the tilting movements of the lever arm and of the sensing element. A wedge of lubricant is formed. The invention is suitable for sensing disc cams in the transmission of rotary movements between elements rotating about axes which are perpendicular to one another, especially for optical scanners. <IMAGE>