baber/WOPTO huggingface dataset:
Patent DE-3922611-A1 (DE)
Title: Support for power drill making holes in ceiling - consists of telescopic strut with lever to press drill upwards
Inventor: EHRICHS VOLKER
IPC: B23B45/14
Filed: 1989-07-10
Abstract: The drilling of holes in a ceiling (2) with a hand-held power drill, is facilitated by using a device which supports the  drill and at the same time enables an axial force to be applied to the drill. The device consists of a telescopic strut (3) with a middle part (7), a lower part (6) with a foot (5), and an upper part (10) with a platform (11) to support the drill (1). The chuck end of the drill body is clamped to a bar (14) which fits inside the upper part (10). A lever (12) mounted on the middle part (7) passes through a slot in the wall of the middle part (7) and exerts an upward force on the upper part (10) so that the drill (1) is pressed against the ceiling. USE - Drilling holes in ceilings.
Patent DE-3935472-A1 (DE)
Inventor: MIESS GEORG-EMERICH DR
IPC: D01F6/80
Filed: 1989-10-25
Abstract: Aromatic copolyamides are described which are soluble in organic polyamide solvents and contain at least 95 mol % of repeating structural units of the formulae  A: OCArCO  <IMAGE>  <IMAGE> <IMAGE>  and up to 5 mol % of structural units E and/or F containing m-bonds and being derived from aromatic dicarboxylic acids (E') and/or aromatic diamines (F'), the sums of the molar proportions of structural units A+E and the molar proportions of structural units B+C+D+F being essentially the same. In these formulae, -Ar- is a divalent aromatic radical whose valence bonds are in the para or comparable coaxial or parallel position, -R is hydrogen, lower alkyl radicals, lower alkoxy radicals or halogen, and R' is a direct bond, a polymethylene chain of 2 to 6 carbon atoms, -O-, -S-, -CO- or -SO2-, or a group of the formula -O-Ar'-O-, in which Ar' has the same meanings as Ar. The proportions of the diamine structural units B, C and D, relative to the total amount of these diamine structural units, are within the following limits: -structural unit B:  5-60 mol %, -structural unit C: 10-80 mol %, -structural unit D: 10-85 mol %. -
Patent DE-3937183-A1 (DE)
Inventor: ROOZENBEEK HERMAN
IPC: H05K1/16
Filed: 1989-11-08
Abstract: Process and device for attenuating perturbing radiation in printed circuit boards provided with electronic circuits, in particular for a control device for an internal combustion engine in a vehicle. Each printed circuit board has conducting tracks (4, 6) on its front and rear faces (3, 5) (double-layer technique), arranged in a layout determined by this double-layer technique. Improved, cost-effective attenuation of perturbing radiation is achieved by using a multi-layer printed circuit board with the same layout, which has at least one embedded, large-area, preferably complete-area, conductor coating (8, 9) which is through hole plated with the corresponding conducting tracks on the front and/or rear faces. The invention also concerns the formation of anti-interference capacitors by means of conductive coatings.
Patent DE-3938904-A1 (DE)
Inventor: KUNZI HUGO
IPC: A23G9/22
Filed: 1989-11-24
Abstract: The invention concerns a process and device for producing edible ice, in which ice-water is made to move past a cylindrical cooling surface (50) by a rotating mixer-scraper (12) which imparts a stirring and/or beating action and which strips the ice thus formed from the cooling surface. In order to optimize the ice quality, parts of the ice-water are subjected to a compressive force which presses them against the cooling surface (50) as they move past, this compressive action being maintained for several revolutions of the mixer-scraper (12), the ice thus formed being subsequently stripped from the cooling surface (50) again during the course of one or more revolutions and mixed with the rest of the ice-water, the compression and stripping taking place as separate, alternating steps.
Patent DE-3939563-A1 (DE)
Title: Delivering hollow sections to work-station - involves gripper mounted on horizontal slide
Inventor: WAHL RAINER
IPC: B23D47/04
Filed: 1989-11-30
Abstract: Window frames or similar structure are made from hollow plastics sections.  The sections are delivered to the work station by a conveyor formed by two parallel endless chains (2). The sections are transported in the direction at right angles to their length. At the end of the conveyor each section (1) is removed by two rollers (6) mounted on devices which can raise and lower the rollers.  Each section (1) is aligned in turn with the gripper (8) which is mounted on a horizontal slide which pushes the sections to the work-station while the sections are still supported on the rollers (6). USE - Mfr. of window frames.
Patent DE-3941001-A1 (DE)
Inventor: HOERPEL GERHARD DR
IPC: C08K5/38
Filed: 1989-12-12
Abstract: 1.1 A process for the vulcanisation of rubber by means of a vulcanisation system based on sulphur and dithiocarboxylic acid or salts thereof. 2.1 The object of the invention was to provide a process for the vulcanisation of rubbers which on the one hand excludes the formation of health-endangering nitrosamines and at the same time does not impair the vulcanisate properties. 2.2 The solution comprises adding an effective amount of an aromatic hydroxythiocarboxylic acid or a salt thereof to the vulcanisation mixture. 2.3 The process according to the invention is suitable both for natural rubbers and for synthetic rubbers.
Patent DE-3942215-A1 (DE)
Inventor: MUELLER KARL-HANS DR
IPC: C10C3/14
Filed: 1989-12-21
Abstract: Bitumen granules which contain 0.5 to 15% by weight, preferably 6.1 to 15% by weight, of a re-powdering and separating agent such as, for example, synthetic silica or carbon black, are produced by atomising hot liquid bitumen in a known spray mixer and simultaneously introducing the repowdering and separating agent into the spray mixer via the cold air stream.
Patent DE-3943478-A1 (DE)
Title: Workpiece table for handling semiconductor wafers
Inventor: WAGNER RUDOLF
IPC: B65G49/06
Filed: 1989-05-08
Abstract: A table lift, for transporting thin disc-like workpieces such as silicon wafers from a lower feed-in position to a higher process chamber position, consists of a central column (3) which carries the worktable (5) at its top end. Further below, a large ring flangee (7) bears against the device housing. The same carries servo motors (12) which transmit their torque to axles (10) when the arms (14) with its fingers are to grip the work piece (6) or respectively to release it. After the workpiece is lifted into the vacuum chamber and sealed, the arms (14) are turned outwards by the servo motors (12), and thereby come to be placed below a protective ledge (34) so that the effect of the acid and other substance deposition applied to the workpiece will not be applied to the holding arms.  While the transporting and holding gear is withdrawn, a loose ring surrounds the work piece thus keeping it in place.
Patent DE-4000741-A1 (DE)
Inventor: DORAU JOACHIM DIPL ING
IPC: H01R13/70
Filed: 1990-01-12
Abstract: The connecting device permits the connection of a load to supply lines (24) and also the control of the load by means of control lines (11) via an interface (12). The supply lines (24) and the control lines (11) lead into separate installation spaces (5, 6). The interface (12) is located in the first installation space (5), and a plug socket (8) and a control device (9), controlling it, are located in the second installation space (6). The connecting lines between the interface (12) and the control device (9) are contained on the inside of the cover (17) and are connected to the interface and to the control device (9) via plug devices (16, 21; 22, 23). The control device (9) is controlled via the interface (12). The control device (9), with a control member (10), controls the current supply to the contact sockets (28) of the plug socket (8), to which the load is connected. <IMAGE>
Patent DE-4005291-A1 (DE)
Title: Bank-notes cash dispenser and checking appts. - has scanning arm and drive ratchet belt for transporting notes
Inventor: MENKE WILHELM
IPC: G07D11/00
Filed: 1990-02-20
Abstract: A bank-note recognises as authorised by a bank-note scanner (2) is transported into a stacking position opposite a stacking holder (10) and loaded in the holder via a stacking device (7). The scanner, the transport device (12) and the holder are lodged in a combined case (1). This can be opened at a point near the transport device to allow a horizontal and vertical movement of the bank-note (6) without taking out the stacking holder from the case. A transport device coupled to a drive motor (67) that can be switched according to the direction of rotation draws the bank-note through the scanner and into a stacking position. Then a separate drive motor (53) is fitted for the stacking device. USE/ADVANTAGE - Stacks and checks bank-notes, easily identifies notes passing through.
Patent DE-4014919-A1 (DE)
Title: Sewing machine spool - has detector to indicate proximal end of thread winding
Inventor: REINDERS PETER
IPC: D05B59/02
Filed: 1990-05-10
Abstract: On a sewing machine which has a sensor to detect the amount of thread remaining on the spool when sewing, the spool housing has a hole through which a beam of light is reflected to a photoelectric cell from reflector tape on the spool, it is also arranged, that the emission avoids negative thread detection, and the central circumference of the spool is ridged in V profile, with an appropriate beam angle. ADVANTAGE - The equipment is situated on the machine in a position which does not cause hindrance. The equipment is standard, and threfore economical. There is a remaining length of thread to continue sewing after initial warning.
Patent DE-4016841-A1 (DE)
Title: Prodn. of screw spindle pump running housing - involves housing insert with cylindrical main bore accommodating drive spindle
Inventor: KNOLL JUERGEN DIPL ING
IPC: F04C2/16
Filed: 1990-05-25
Abstract: Laterally to the cylindrical main hole are two adjacent holes which overlap the main hole in circular segment sections, and accommodate running spindles. These spindles overlap the drive spindle in engagement with it in the circular segment sections. The running housing is formed in two halves (11,12) in the common symmetry plane (18) of the main hole (13) and the two adjacent holes (14,15). Recesses (16,16') for the formation of the main hole (13) and the adjacent holes (14,15) are produced by profile milling or profile grinding in an external machining process of the symmetry plane (18) of the housing halves (11,12).  The holes in the housing halves are provided with a wear layer in the form of plasma injection or by ceramic coating. USE - To produce a running housing for a screw spindle pump.
Patent DE-4019796-A1 (DE)
Title: Pre-assembled axle for vehicle - has suspension with upper track arm and axle carrier with body-side joint
Inventor: HAJTO JENO
IPC: B60G7/02
Filed: 1990-06-21
Abstract: Axle for a vehicle, particularly one which can be pre-assembled, having a suspension with an upper track arm and an axle carrier.  The body-side joint (15) of the upper track arm (3) is connected with the axle carrier (7) by a swivel arm (9). ADVANTAGE - Pre-assembled axle in which the length of the upper track arm does not have to be shortened in order to avoid space problems during assembly.
Patent DE-4023464-A1 (DE)
Title: Portable angle grinder with dust extraction system - has relief valves set to keep suction force on grinding wheel below that causing adherence to work
Inventor: ATTINGER KARL
IPC: B24B55/10
Filed: 1990-07-24
Abstract: The wheel of the angle grinder consists of a disk (3) on whose facee is fastened a grinding medium such as emery paper (5). Holes (7) connect the working surface of the disk with the suction chamber (8) formed by a rubber or plastics collar (17) secured to the machine housing (1) and rubbing on the back face (6) of the disk. The suction chamber is connected by a flexible pipe to an extractor unit. - In one variant of the system flap valves (12) are formed in the plastics- collar. The flap (13) normally seats the opening (14) but above a threshold vacuum the flap lifts off its seat and allows air to flow into the chamber (8). Thus the vacuum is held at a value preventing the grinding disk from sticking hard on the work surface.
Patent DE-4023692-A1 (DE)
Title: Metal welding plug for steel to concrete union - has one end to be welded and other end with head for anchoring in concrete
Inventor: RAMM WIELAND PROF DR ING
IPC: E04B5/29
Filed: 1990-07-26
Abstract: The shaft (1) of the metal plug has a section (2) at the weld end (3) with an enlarged cross-section in comparison to the remainder of the plug. The shaft and the section are formed rotation-symmetrically to a common axis, and the section has the shape of a prism. Alternatively, the shaft and/or the section have/has the shape of a straight cylindrical piece. The dia. of the plug head (5) is at least as large as that of the section (2). The ratio between length and dia. of the section is between 1:2 and 3:2, and the ratio between the dia. of the section to that of the shaft is between 7:6 and 10:6.
Patent DE-4026132-A1 (DE)
Title: Two=stage cutting or drilling process using laser beam - involves removing top upper brittle layer and cutting second layer to avoid edge cracking
Inventor: HAMANN CHRISTOPH DIPL ING
IPC: B23K26/40
Filed: 1990-08-17
Abstract: Cutting contours through brittle composite material made of parts with different thermal expansion coeffts. consists of remains of the coating layer (2) using a high energy laser beam (9) followed by cutting the contour in the second material (3). Alternatively the composite may be cut through completely and then followed up by an edge cutting operation to remove any edge cracking areas.  When the oxide layer is removed first, the cut sectional area is slightly greater than that of the hole to be cut in the second material. Also the energy beam for the first stage is less powerful than the beam used in the second stage. The dia. of the beam is also smaller in the first stage than in the second, cutting process. USE/ADVANTAGE - Boring semiconductor material such as Si which is coated with an oxide layer as protection.  Avoids stress cracking around the bore hole which would otherwise harm the functioning of the integrated circuit component.
Patent DE-4028806-A1 (DE)
Title: Cryogenic microtome with reciprocating specimen carrier arm - sealed against cryogen leakage by fine air gap
Inventor: LIHL REINHARD
IPC: F25D3/10
Filed: 1990-09-11
Abstract: A microtome (esp. an ultramicrotome) has a cooling chamber, which is accessible from the top and which is supplied by a cryogenic gas feedline, and a vertically reciprocable specimen carrier arm which extends through a wall opening into the cooling chamber, the opening being sealed against cryogen leakage. The novelty is that (a) an air gap (29,30) exits in the region of the opening (26) between the surface of the carrier arm (22) and the surface of the chamber wall (25) in each carrier arm movement phase; and (b) the air gap has a relatively small cross-section and a relatively long length in the cryogen leakage direction to achieve sealing against cryogen leakage. USE/ADVANTAGE - The microtome is used esp. to prepare biological specimens for (electron) microscopic examination. Sealing is achieved without any mechanical effect on the carrier arm.
Patent DE-4030102-A1 (DE)
Title: Closed circuit fumigation process -  esp. for insecticidal treatment of e.g. flour mills and grain silos
Inventor: SCHREINER HERMANN PROF DIPL IN
IPC: A01M13/00
Filed: 1990-09-22
Abstract: The photocopying machine has the roll of paper enclosed in a cassette (2). The cassette is in the form of a cube and has hinge pins (2d) arranged parallel and close to one of its lower edges. These hinge pins engage hooks projecting from the copying machine (1b) so that the cassette can be swung upwards and then slid over the platform of the copying machine. The cassette has a handle (2b) attached to one side face and to its upper face in order to swing it from its filling position to its operating position. USE/ADVANTAGE- The photocopying machine with cassette for holding the paper which is easy to handle.
Patent DE-4030804-A1 (DE)
Title: Distribution block for telecommunication plant e.g. telephone exchange -  has one isolating contact projecting at front and other at near side for seldom altered lines
Inventor: KNOLL RUDOLF
IPC: H04Q1/14
Filed: 1990-09-28
Abstract: The contact part (6) has a connection element (8) at the front operating side of the distributor block (1), e.g. for the frequently altered subscriber side switching lines at the operating side (12), compared to the seldom altered system side lines on the rear side (12) of the block (1). The connection element (7) arranged at the rear side of the contact part (6) and associated with it form a one piece spring contact. This is bent back in a V shape having at its ends the contact pole (10) of the connection element (7). The spring contact in the region of the bending place has a pin type part designed as the connection element (8), extended in the direction to the operating side of the distributor block (1) away from the connection element (7). The extended part (8) projects from the further opening (9) provided in the surface of the operating side (12) of the block (1), near the entry openings for the respective other contact part (4) of one connection element associated with each isolating contact. So that a corresp. counter contact (27) can be plugged thereon, with which a connection of the contact part to another connecting point is facilitated. USE/ADVANTAGE - Distribution block for telecommunication systems. Narrow distribution block is used, which facilitates contacting of components to be coupled at block, to contact parts assigned to conductor core, without adverse alterations to their electrical characteristics.
Patent DE-4032777-A1 (DE)
Title: Sawing station for cutting wood panels - has C of G of moving mass of machine slung between horizontal guide rails to reduce tipping moment
Inventor: TAGLIAFERRI RENZO
IPC: B23D45/10
Filed: 1990-10-16
Abstract: In end view the machine frame consists of two hollow section girders (3) and (6) on top of which are two work surfaces (5) separated by a gap through which protrudes from below the main blade (8) and an initial blade immediately in front of the main blade. On the girder (3) are rails (22,28) running the length of the machine. Suspended from the rails and movable along them on rollers (23,40) and (34) is a carriage (4) to which is attached a vertical slide (35) carrying the motor drive and blade assembly. The assembly can be raised into the cutting position by a hydraulic cylinder (29). The centre of gravity of the moving mass of the machine lies between the rails (22,28), so that tipping movements affecting the line of cut are  substantially avoided. USE/ADVANTAGE - Simple design of wood panel sawing station gives accurate and maintenance of machine is reduced.
Patent DE-4033958-A1 (DE)
Title: Liq. cooling and filter medium for IR high power radiator - is soln. of pigment with absorption edge of 700 nm and antibacterial substance of high optical transparency
Inventor: HECHT HANS-CHRISTIAN DIPL PHYS
IPC: F21V9/00
Filed: 1990-10-25
Abstract: A water base is used for at least one stain dissolvable in water with an absorption edge of about 700 nm and an antibacterial substance of high optical transparency between 800 and 1,400 nm. The dissolvable stain can also serve as the antibacterial substance. The radiation transmission factor of the medium in the range lying between 800 and 1,400 nm is greater than 80 percent. The medium is circulated by a rotary pump in a coaxial pipe surrounding the prim. radiator. A heat exchanger, particle filter and degasification unit are included in the circuit. USE/ADVANTAGE - Hyperthermic medical treatment. Filter pigment directly contained in moving cooling medium.
Patent DE-4035632-A1 (DE)
Title: New water soluble tris:azo dyestuff cpds. used for dyeing leather - are 2(4-(4-azo-anilino)-3-sulpho-phenyl-azo)-7-azo-1-naphthol-3-sulphonic acid coupled with 1,3-di:aminobenzene-4-sulphonic acid, etc.
Inventor: KNOECHEL GERHARD
IPC: C09B35/37
Filed: 1990-11-09
Abstract: New water-soluble trisazo dyestuffs (I) are 2-(4-(4-azo-anilino)-3-sulphophenyl -azo) -7-azo-l-naphthol-3-sulphonic acid cpds., coupled with 1,3-diaminobenzene-4-sulphonic acid and an acetoacetarylide or phenylmethylpyrazolone sulphonic acid of the formula (I). In (I), one K = a 1,3-diaminobenzene-4-sulphonic acid gp. and the other K = an acetoacetarylide gp., opt. substd. by Cl, OMe or -SO2NH2, or a phenylmethylpyrazolone sulphonic acid, opt. substd. by Cl. (I) may be prepd. by conventional diazotisation and coupling. USE/ADVANTAGE - (I) are claimed for dyeing leather. They give black tones with higher colour strength and, in pt., better fastness than the usual dyestuffs. In an example, 14 g 4,4'diaminodiphenylamine-2- sulphonic acid were bisdiazotised and coupled with 12 g 2-amino-8-hydroxy-naphthalene -6-sulphonic acid in slightly acid to alkaline medium. The prod. was diazotised and coupled with 9.5 g 1,3-diaminobenzene-4-sulphonic acid in slightly acid to alkaline medium, then coupled with 8.8 g acetoacetanilide in strongly alkaline soln. The resultant dyestuff (A) dyed leather strong black with a reddish tinge. Compared with a conventional dyestuff (B) (DE3135538), example 3), which had a bluish-black tone, it gave stronger dyeing with glove, calfskin suede and pigskin suede leather. The rubbing fastness (N/F) was (A) 3-4/3-4, (B) 3/2 dry and (A) 2/2-3, (B) 2/2 wet; and the fastness to perspiration (A) 4/5, (B) 3/4-5.
Patent DE-4036060-A1 (DE)
Title: Hole adjustment level - has inner and outer bodies which slide w.r.t. each other enabling hole separations to be set single-handedly
Inventor: MEGLIN ROLAND
IPC: G01C9/28
Filed: 1990-11-13
Abstract: A hole adjustment level contains two elongated bodies which slide w.r.t. each other in the same way as a slide rule and are able to be set to a hole separation to be marked. The outer body has a hole marked as Bore 1 which forms the null point for the 0-500 and 0-1000 mm ranges. The inner body has two markings, Bore 2 for the range 0-500 mm and Bore 3 for the range 500-1000 mm. The outer body (1) has two U-profiles arranged so that the inner body (2) can slide within it. USE/ADVANTAGE - Enables one person quickly and simply to mark two or more points on horizontal or vertical line.
Patent DE-4036208-A1 (DE)
Inventor: HARREN BERND
IPC: A61F13/00
Filed: 1990-11-14
Abstract: An absorbent medical tampon is produced by simultaneously weaving several fabric layers (GB1-GB6) and interweaving with one another in the edge regions (KB1). In the edge regions, the weaving threads running along these edge regions, for example the warp threads (Kb), can consist of hydrophobic material so that in the regions of the weaving connections no collections of liquid can form in the absorbent tampon. The hydrophobic threads preferably consist of thermoplastic material and are thermally fused with the material of the absorbent threads. <IMAGE>
Patent DE-4040064-A1 (DE)
Title: Tank seal between ground and wall construction - is for making waste and contaminated material storage watertight
Inventor: GAISER HERBERT DIPL ING
IPC: E02D31/00
Filed: 1990-12-14
Abstract: The constructional system is for the secure watertight sealing between base (1) and encircling walls (3) of a contaminated matter store. A pipe (5) or tunnels tructure is set into the base. Its upper half is removed, and the vertical and horizontal sealing layers (2,4) and bonded, either directly or through an intermediary layer (7). The upper half is the replaced. The pipe void may or may not be filled. USE - Watertight seal between base and encircling walls of store for contaminated matter.