baber/WOPTO huggingface dataset:
Patent DE-3039320-A1 (DE)
Title: Caprolactam purification by oxidn. and distn. - with fast distn. before oxidn. to give higher purity prod. suitable for nylon prodn.
Inventor: SENNI PAOLO
IPC: C07D201/16
Filed: 1980-10-17
Abstract: Raw caprolactam (I), obtd. by extn. from sulphuric soln. with alkylated phenols and re-extn. with water, is purified by oxidn. treatment (pref. with KMnO4), evapn. of the water and successive vacuum distn. The improvement is that a fast distn. in presence of an alkaline cpd. is inserted before the oxidn. treatment. "Fast" distn. means that the evapd. material is not refluxed to the evapn. zone. The purity of the obtd. (I) is further increased by the fast distn. The obtd. (I) may be of sufficient purity to produce polymerisation grade nylon-6 (i.e. nylon suitable for prodn. of industrial prods. such as fibres and plastics). The amt. of oxidising agent reqd. is reduced, which gives ecological and economic advantages, since oxidising agent cost is reduced and less (I) is destroyed by the oxidising agent.
Patent DE-3041812-A1 (DE)
Inventor: STURM KARL DIPL CHEM DR
IPC: C07D307/52
Filed: 1980-11-06
Abstract: What are disclosed are salidiuretic compounds of the formula <IMAGE>   and physiologically acceptable salts thereof, wherein R is phenyl, furyl or thienyl, intermediates of said compounds, methods for making said compounds, salidiuretic pharmaceutical preparations containing said compounds or salts, and methods for treating humans and other mammals with such compounds or salts.
Patent DE-3041830-A1 (DE)
Title: Endless band saw bench - has cable carrying e.g. diamond cutting discs with central bores for cable and secured to it at intervals
Inventor: GEBHART SIEGFRIED
IPC: B28D1/12
Filed: 1980-11-06
Abstract: The sawing machine comprises a frame with a work support table and an endless cable (3) which runs around rollers and is provided with hard-metal or diamond cutting elements (17) in the form of discs spaced along the length of the cable. Each disc has a central bore through which the cable passes and is rigidly secured to that cable. Spacer bushes (18) may be arranged between the discs and may be clamped on to the cable e.g. by applying pliers to a circumferential groove (19) in each bush, or by welding or soldering.
Patent DE-3043133-A1 (DE)
Inventor: SCHILLING WILLY
IPC: H01H13/60
Filed: 1980-11-15
Abstract: In the case of the electrical push-button switch, the contact rocker (9) consists of a body which is in the form of a plate, is arranged on edge in the pivoting plane and is supported by means of a pivoting pin (13) which runs at right angles to the plane of the body which is in the form of a plate. Said pivoting pin (13) is stamped out of the material of a rocker support (10) by extrusion moulding and engages through a recess (12), of square cross-section on the longitudinal centre of the contact rocker (9). The toggle spring (17), which engages in a notch (16) on the circumferential edge of the contact rocker (9), is a wire spring clip. Said wire spring clip has clip arms (20) which extend symmetrically with respect to both sides of the contact rocker and whose ends are held in the base (1) on both sides of a switch connecting terminal (25) which extends into the intermediate space between the clip arms. This space-saving construction results in a small overall height of the switch, and two contact rockers can be arranged inside one switch, said contact rockers having the associated rocker support and toggle spring side-by-side with sufficient space between them for a possible additional illumination device. <IMAGE>
Patent DE-3049592-A1 (DE)
Title: Measuring oxygen partial pressure in animals or humans - using gas-tight extremity and probe container with heater
Inventor: FICHTNER MANFRED
IPC: A61B5/00
Filed: 1980-12-31
Abstract: An indicator displays the electrical signals from the probe. The arrangement is insensitive to temp. fluctuations etc. The arrangement performs an integral non-invasive measurement over an entire extremity or body, enabling reliable diagnosis of certain conditions of the patient. A vessel, completely sealed off from its surroundings, contains or carries the probe, a heater and an elongated tube which produces a directed gas flow. The tube contains a gas feed device and inlet and outlet pipes, project into the container via gas-tight seals. The container is a tubus with the length of a human extremity which can be inserted via a gas tight aperture.
Patent DE-3101205-A1 (DE)
Title: Connecting device
Inventor: OFFENBROICH ADRIAN GOTTFRIED
IPC: F16B12/30
Filed: 1981-01-16
Abstract: A connecting device for tubes with an essentially rectangular cross-section has a parallelepipedal centre body (1). At least two arms (2) extend outwards from one side of the centre body in each case and can each be non-releasably connected, by frictional engagement, to one tube piece in each case. These arms (2) are formed in one piece with the centre body (1) and are located in a common plane. A further, separate arm (7) of the same cross-sectional shape as the first-mentioned arms (2) is inserted into the end of a tube piece, for a non-releasable frictional engagement with the latter, whereupon said tube piece can be releasably connected, perpendicular to the said plane, to the centre body. <IMAGE>
Patent DE-3101599-A1 (DE)
Title: Process for producing a plastic moulding having a surface coating and use thereof
Inventor: KOCH KASPAR
IPC: B29C41/08
Filed: 1981-01-20
Abstract: The invention relates to a production process for a moulding which is to be provided with a surface coating and consists of a plastic having a lower melting point than that of the coating material, the coating material being applied as a powder onto the mould surface to form a layer before the introduction of the plastic into the mould, which layer is immediately united with the basic body formed from the plastic. So that the coating material can be applied onto the mould surface, as a powder without added binder, to form a layer, according to the invention the mould surface is coated with an adhesive in a volatile solvent before the application of the coating material. The application of the coating material is carried out before the evaporation of the solvent. Finally, after demoulding, the adhesive is removed from the surface coating adhering to the basic body by washing with the solvent.
Patent DE-3114194-A1 (DE)
Title: Contact arrangement for a switching apparatus
Inventor: SABISCH WILLY
IPC: H01H1/20
Filed: 1981-04-08
Abstract: The invention relates to a contact arrangement for a switching apparatus which has a contact link (12) and stationary contact parts (9) supporting connections (10). The stationary contact parts (9) are held in the housing (1) and have stationary contact parts (9) which project into the contact region of the contact links (12). A guide recess (4), which surrounds the contact link (12) in the form of a pot, is provided in the housing (1). The contact compression spring (13) is supported on the one hand on the contact link (12) and on the other hand on the base (14) of the guide recess (4). In consequence, it is possible to construct a contact arrangement for switching apparatuses, in the case of which contact links and contact compression springs can be inserted in a simple manner without having to be threaded in in a complex manner. <IMAGE>
Patent DE-3115766-A1 (DE)
Title: Competition shooting system
Inventor: HERROEDER EWALD
IPC: F41J11/00
Filed: 1981-04-18
Abstract: A competition shooting system has a firing stand (1) which can be arranged detachably and transversely in the room of a bowling alley (skittle alley). The width of the firing stand (1) is such that it extends from one side wall to the other in a bowling alley and in consequence at the same time acts as a limiting device. The pivoting range of the rifle (3) of the competition shooting system is limited by stops so that it is possible to fire in only one firing direction and in consequence there is no possible danger to people or risk of damage to the bowling alley. <IMAGE>
Patent DE-3115992-A1 (DE)
Title: Process for the preparation of indole derivatives
Inventor: HEINDL JOSEF DR
IPC: C07D209/42
Filed: 1981-04-13
Abstract: Process for the preparation of indole derivatives of the general formula I <IMAGE> in which R1 denotes an alkyl radical or cycloalkyl radical containing up to 8 carbon atoms, which is characterised in that an indole derivative of the general formula II <IMAGE> in which R1 has the abovementioned meaning and R2 represents an alkyl radical having 1 to 6 carbon atoms, is reacted with boron tribromide in an inert solvent at a temperature from -80 DEG C to -20 DEG C. The indole derivatives of the general formula I are useful intermediates.
Patent DE-3118211-A1 (DE)
Title: Chain-connecting link for round steel chains
IPC: B66C1/12
Filed: 1981-05-08
Abstract: The invention relates to a chain-connecting link for round steel chains, which is suitable in particular as a suspension head for load-line-orientated slinging-chain suspension gear according to the modular construction system and consists of a U-shaped suspension stirrup (1) and an attachment link (7), pivotably connected to it by a pin (6), for a round steel chain (8). The attachment link (7) has only one head part (9), projecting between the two legs (2, 3) of the suspension stirrup (1) and having a transverse bore (10) for the connecting pin (6), and two legs (11, 12) which adjoin the head part (9) in a fork shape, enclose an attachment slot (13) between them for a chain link (8') and are connected to one another by a stop pin (14). The suspension stirrup (1) and the attachment link (7) consist of high-strength drop forgings without additional surface treatment, and the transverse bore (10) in the head part (9) can in each case be arranged in such a way that the stop pin (14) either lies in a common plane with the connecting pin (6) or is arranged transversely to it so that, depending on the loading directions, no inadmissible stresses occur due to the outgoing slinging-chain strand. <IMAGE>
Patent DE-3121308-A1 (DE)
Title: Method for television scanning of films
Inventor: POETSCH DIETER DIPL ING
IPC: H04N7/01
Filed: 1981-05-29
Abstract: A method for television scanning of films of the so-called cinemascope format according to main application P 3115367 is proposed. The complete cinemascope film image is written into an (extended) frame buffer and read out again with a clock frequency reduced by the expansion factor after the beginning of readout has been shifted.
Patent DE-3121838-A1 (DE)
Title: Heat exchanger and method for producing it
Inventor: REITHER KARL
IPC: F28F9/26
Filed: 1981-06-02
Abstract: A heat exchanger is assembled from a plurality of tube lengths, arranged in parallel and at a spacing from one another, and made from thermoplastic synthetic material, together with tube end pieces which connect said tube lengths. In this arrangement, the tube lengths are combined in groups of four which are combined in turn to form tube stacks. The spacings between the tubes of a tube stack are safeguarded by loose retaining plates pushed on in a displaceable manner. A plurality of such tube stacks can be placed one above another to form an extensive heat exchanger and can be firmly connected to one another with the aid of the retaining plates. The method for producing such a heat exchanger can be performed in three stages:     1. Combination of four tube lengths to form a tube group. 2. Combination of a plurality of juxtaposed tube groups to form a tube stack. 3. Combination of a plurality of tube stacks laid one above another to form a large heat exchanger.   <IMAGE>
Patent DE-3130318-A1 (DE)
Title: Electrical installation apparatus, especially a plug socket or switch having screwless connecting terminals
Inventor: LINKE RAINER
IPC: H01R4/48
Filed: 1981-07-31
Abstract: The invention relates to an electrical installation apparatus, especially a plug socket or switch having screwless connecting terminals (12) which consist of leaf springs (19) which are bent in a V-shape, are adjustable at right angles to the clamping direction with the aid of a control device (27) and can be moved into a stable open position and a stable clamping position. In the open position, the clamping edges (33) are lifted off the contact link (21) and form an opening for the insertion of the conductor (18). When the control device (27) is operated, the leaf spring (19) can be moved back into the clamping position, in which the conductor (18) is pressed in a prestressed manner against the contact link (21), by the sprung contact tongue (20). <IMAGE>
Patent DE-3131463-A1 (DE)
Inventor: FISCHER KARL
IPC: F24C15/10
Filed: 1981-08-08
Abstract: A hotplate is fitted by means of a relatively wide and shallow mounting ring, whose outer edge rests on a mounting plate made from glass, ceramic or other materials. At its edge, the mounting ring is adhered to mounting plate using a thermally stable adhesive, which simultaneously forms a seal against cooked articles running through. The sheet metal insert ring covers the inner circumference of mounting a opening in the mounting plate and has an upper outwardly directed flange engaging over the seal. Simultaneously the seal, in conjunction with the insert ring, centers the hotplate in the mounting opening. A release ring can be inserted for releasing the hotplate.
Patent DE-3134323-A1 (DE)
Title: Device with a supporting part and a movable part
Inventor: SEICHTER WOLFGANG ING GRAD
IPC: B23Q15/24
Filed: 1981-08-31
Abstract: In a device with a movable carriage (1) on a supporting part (13), a compensating coupling (15, 16) is provided. An intermediate part (8) in the drive path is monitored by position sensors (5, 6, 10). The position sensors (5, 6, 10) permit automatic re-adjustment after a response of the compensating coupling. <IMAGE>
Patent DE-3138264-A1 (DE)
Title: Rocker for current collectors
Inventor: BUCHBERGER WILHELM
IPC: B60L5/22
Filed: 1981-09-25
Abstract: A rocker for current collectors of electrical power units with overhead line supply has two contact element carriers (3) which are arranged one behind the other in the travel direction and, in order to achieve a particularly favourable spring characteristic, are attached independently of one another via bar springs (1) to a top tube connected to the current collector. The bar springs (1) are supported at least from below between the top tube (6) and the contact element carriers (3). <IMAGE>
Patent DE-3141469-A1 (DE)
Title: Electrode for the resistance spot welding of sheet
Inventor: GUENTHER RAINER DR DIPL PHYS
IPC: B23K11/30
Filed: 1981-10-20
Abstract: An electrode for the resistance spot welding of sheet, in particular metal-coated sheet, is designed in the form of a tube which is lined with an electrically insulating material. A follow-up wire, which is fed from a separate current source, is guided through the tube.
Patent DE-3143319-A1 (DE)
Title: Bottle pourer
Inventor: SCHUCKMANN ALFRED VON
IPC: B65D47/06
Filed: 1981-10-31
Abstract: The invention relates to a pourer for bottles which has a basic body (3) which can be inserted into the bottle neck (1) in the manner of a stopper and to which a venting duct (9) and a pouring tube (7) are assigned. In order to achieve a simple construction which is favourable in use, it is proposed that the pouring tube (7), which is mounted so as to be displaceable essentially parallel to the venting duct (9), be displaceable in the outward direction and be loaded by a compression spring (11), and that the inside sealing surface (22) of a closure cap (22) screwed onto the bottle neck hold the pouring tube (7) in an inwardly inserted position. <IMAGE>
Patent DE-3145430-A1 (DE)
Title: Device for generating tomographic images of an object under examination
Inventor: REINHARDT ERICH R DR ING
IPC: G01T1/29
Filed: 1981-11-16
Abstract: The invention relates to such a device which has a detector system for the radiation. It is the aim of the invention to develop the device to such an extent that at least the same spatial information is obtained as in conventional systems whilst retaining a short recording time. This aim is achieved by the fact that the detector system (1, 11) is optionally imaged, for the temporally successive or simultaneous scanning of the object under examination (7), from a low number of different angle positions (A, B), at the most within a range from two to ten but preferably only two which, however, deviate from 180 DEG , so that, due to the different geometric arrangement, correspondingly different information items on the spatial distribution of radiation are supplied and that, at least for the case of the scanning of a self-radiating object under examination, each detector of the system is preceeded by its own coding aperture (5, 15). <IMAGE>
Patent DE-3201060-A1 (DE)
Title: Suspension device for tubes, round rods, cables or similar structural elements
Inventor: SCHNABEL WINFRIED DIPL ING
IPC: F16L3/14
Filed: 1982-01-15
Abstract: The invention relates to a suspension device for tubes, round rods, cables or similar structural elements which must be suspended at a specific distance from a concrete ceiling or the like. The object is achieved according to the invention in that a tube connecting piece with a baseplate is pushed over a spacer tube and is mounted in the concrete ceiling using suitably long screws. In each case at least two vertical slots are arranged on both sides of the tube connecting piece. A steel strip or steel wire is passed through these slots such that the steel strip or steel wire is in each case bent over at the slot end and is inserted into the next slot, the steel strip or steel wire being passed from the one side of the suspension device to the other side and hence enclosing a tube, a round rod or a cable unilaterally.
Patent DE-3207448-A1 (DE)
Title: Radial fan without a cover disc
Inventor: POPPE HEINZ
IPC: H02K9/14
Filed: 1982-03-02
Abstract: The fan arrangement for externally ventilated electric machines, the direction of rotation of which is reversible, has a radial fan, without a cover disc, fixed on the shaft (3) and having four straight fan blades (6) within a cylindrical fan cowl (2), the frontal, circular, flat air inlet (2E) of which, having a diameter (DE), lies in a distance range (A) of 1:10 in front of the flat fan front side (2A) having the diameter (DL), the ratio DE:DL being able to be between 1.6 and 0.8. To reduce noise, the fan blades (6) are extended at the front side, perpendicularly almost as far as the shaft centre axis and the radially extended portions extend axially as far as the shaft end face. The fan blades (6) are held on a conical supporting disc (5) ending with the shaft end face via a bevelled hub (4) on the shaft (3) and have an axial width ratio (edge 8) to the fan diameter (DL) of at least 0.5. <IMAGE>
Patent DE-3218877-A1 (DE)
Title: Energy conversion device for the utilisation of flow energy
Inventor: ZIMMER HERBERT DIPL ING
IPC: F03D1/04
Filed: 1982-05-19
Abstract: Energy conversion device for utilising the flow energy of air or water, in which a delta-shaped buoyant surface or buoyant body has longitudinal gaps by means of which the turbulent flow in the area of the leading edges is boosted by the gap flow from the excess pressure to the low pressure side. <IMAGE>
Patent DE-3223845-A1 (DE)
Title: Centrally-controlled change-over device
Inventor: HOFFMEISTER ULRICH DIPL ING
IPC: H04Q3/54
Filed: 1982-06-25
Abstract: The invention relates to a centrally-controlled change-over device with a plurality of galvanic change-over switching points, switched by means of relays, for changing over lines and devices in telecommunication exchanges. To avoid switching-on and -off peaks during a change-over of several or all change-over switching points switched by means of relays, these are progressively changed over. <IMAGE>
Patent DE-3228934-A1 (DE)
Title: Device for cooling liquid
Inventor: KIRN ADOLF H
IPC: F25D9/00
Filed: 1982-08-03
Abstract: In order greatly to reduce the energy requirement and the actual operating time of the compressor in an appliance for cooling liquid consisting of an evaporator, compressor and condenser, the invention provides that the liquid to be cooled can be supplied by a switching device to the evaporator input either directly or via an air-cooled liquid cooler, that, when the ambient temperature falls below the temperature of the liquid to be cooled, the switching device can be changed over by means of a first control device from the direct supply of the liquid to be cooled to the supply via the liquid cooler, and that, by means of a second control device and in dependence on the temperature of the cooled liquid, the switching on and off of the compressor is controllable and the switching device can be operated as a volume controlling valve.
Patent DE-3241123-A1 (DE)
Title: Electric lift for roller shutters and blinds on windows
Inventor: GREIS RICHARD
IPC: H01H3/16
Filed: 1982-11-06
Abstract: A lift for roller shutters and blinds on windows is provided with an electromotive drive (2) which has a limit switch (6). For the purpose of simple exchange of a manually operated roller shutter or blind lift for one which is electromotively operated, the lift is provided with a winding spool (4) for a roller shutter strap (5), which is conventional in the case of manual operation, and with limit switches (6) arranged in the region of the winding spool (4) and operated by the roller shutter strap (5). <IMAGE>
Patent DE-3300506-A1 (DE)
Title: Upholstered furniture with head support
Inventor: LAAUSER OTTO
IPC: A47C7/38
Filed: 1983-01-08
Abstract: In order to be able to use an item of upholstered furniture, in particular an armchair, both as an armchair having the conventional height of the back part and as a so-called tall back-rest having a head support, it is necessary to be able to convert an armchair whose back part is the same height as, for example, the rest of the armchairs in a seating group into a tall back-rest. For this purpose, the item of upholstered furniture according to the invention has a removable head or neck support which is formed by an upholstered overhang (2) which is arranged on a holder (3) arranged in a vertically adjustable manner on the back part (1). The holder (3) advantageously consists of a stirrup, to the fabric-covered web (31) of which the overhang (2) is detachably fastened by means of adhesion locking. The web is advantageously designed as a rail (33) which is mounted in the stirrup legs (32) and causes the overhang (2) to be lifted from the front surface of the back part when the head support is pushed in. <IMAGE>
Patent DE-3301434-A1 (DE)
Title: Furnace for heating slabs, billets and similar material to be heated
Inventor: PATALON HEINRICH
IPC: F27D99/00
Filed: 1983-01-18
Abstract: In a heating furnace of this kind with ceramic hearths or hearth banks 13, the openings 9 for the delivery and removal of the material to be heated are arranged in constricted end regions 3,4 of the furnace chamber 2 in the chamber roof 6 above the hearth 13 and can be closed with doors 10, in order to prevent damage to the hearth surfaces during placing and removal of the pieces 8 of material to be heated. Conveyor devices 11 for the material to be heated, with displaceable lifting rams 19 which can be lowered through the door openings 9, are arranged above the furnace. To obviate the exit of flue gas on the roof side and the corresponding incursion of cold air into the furnace chamber 2, shut-off valves 15, which can be lowered vertically as far as the hearth 13, are arranged near the door openings 9 and keep the furnace chamber 2 closed when the doors 10 are opened. <IMAGE>