baber/WOPTO huggingface dataset:
Patent DE-3920668-A1 (DE)
Title: Two-for-one twister spindle mounting - has a friction safety clutch with lower torque than that of magnetic stop unit
Inventor: HOFSTETTER KLAUS
IPC: D01H7/86
Filed: 1989-06-23
Abstract: The mounting for the spindle, of a two-for-one twister, has a friction safety clutch between the ring disc and the supply bobbin carrier, structured for a torque which is less than the torque developed by the magnetic stop system. The friction safety clutch is adjusted for a torque of 70-95% of the torque developed by the magnetic stop unit.  The friction safety clutch has two clutch surfaces, pressed together by spring force, lying on a radial plane to the spindle shaft. A pretensed plate spring holds the clutch surfaces together. At least one of the clutch surfaces is cladded. A ring collar on the supply bobbin carrier acts as one clutch surface, pressed against the ring disc.  The permanent magnets of the second row are directly applied to the steel ring disc, and the stationary permanent magnets are fitted directly to a steel ring. The friction safety clutch is covered by a shrouding, between the ring disc and the supply bobbin carrier, to give protection as far as the bobbin area. ADVANTAGE - The assembly allows a relative movement between the supply bobbin carrier and the permanent magnet, with accurately structured relative movement forces.
Patent DE-3921013-A1 (DE)
Title: Monitoring air filter operation - by closable linkage to pressure meter from both sides of filter
Inventor: KUPFER WALTER DIPL ING
IPC: F24F8/108
Filed: 1989-06-27
Abstract: The housing for an air filter, e.g. for a clean room with air supplied from ceiling or wall conduits and outlets, includes a test coupling, normally closed except when connected to the pressurised air on one side of the filter. A first detachable counter-coupling, hermetically sealable from the test coupling, is linked with a differential pressure outer, which in turn is linked to the air on the other side of the filter. A second periodically opened coupling is linked to the air on the other side of the filter, and together with connectors to the pressure meter, the necessary conduits, pressure sensor and electronic evaluator unit are mounted on a support, e.g. a bar. ADVANTAGE - Air pressure difference between two sides of filter is measured rapidly and reliably without dismantling filter or interrupting operations in clean room.
Patent DE-3922632-A1 (DE)
Title: Pressure-wave machine in vehicle - has by=pass valve between gas passages opening in proportion to excess inlet pressure
Inventor: NIEDERER ADOLF
IPC: F04F99/00
Filed: 1989-07-10
Abstract: The pressure-wave machine has a compartmented rotor in bearings in a housing and between guide housings for hot gas and air.  The gas housing (1) has a first passage (2) connected to an engine exhaust outlet, and a second (3) connected to an exhaust outlet system, together with a valve between the two. The valve opens up a connection (6) between the passages immediately a threshold value in the first one is exceded.  The cross-section of this connection increases dependent on the degree of excess pressure in the first passage. USE/ADVANTAGE - Pressure wave machine in vehicle is compact, and accommodates sensitive components inside, thus giving greater protection. from damage.
Patent DE-3923988-A1 (DE)
Title: Pressure seal for annular gaps - has sealing ring with counter surface matched to one component
Inventor: HERWIG HELMUT DIPL ING
IPC: F16J15/02
Filed: 1989-07-20
Abstract: The seal for sepg. two compartments joined by an  annular gap (14) between two components (10,12). One compartment is pressurised, with a radially widened gap (20) in one  component (12), taking a sealing ring (18) possessing an elastomeric coating enclosing a reinforcement (22). The outer or inner periphery of the sealing ring (16) is conical and moves axially on a gap taking the matching counter-surface (32). The closed end facing the low-pressure side has the smaller radial dimension between the inner and outer sealing surfaces (26,30). USE/ADVANTAGE - The sealing ring has good sealing properties and is made of material with low elasticity.
Patent DE-3929039-A1 (DE)
Title: Electronic, automatic switch=on circuit - reacts to input resistance at control output, dependent on ON or OFF state
Inventor: RIEDER JOACHIM
IPC: H03K17/30
Filed: 1989-09-01
Abstract: The automatic switching circuit reacts to an input  register at the output of a control appts., responsive to ON or OFF-state. Pref. it has an adjustable ON threshold. The latter can be so far adjusted that the switching-on can be carried out also by AF. If the circuit is used for a comparator in a controlled appts., it reacts to two voltages, i.e. switching on at a lower voltage and off at a high value. ADVANTAGE - Improved automatic switching.
Patent DE-3930779-A1 (DE)
Title: Locking flap with housing between two flanges - has through bore, and elastically deformable struts for two facing flange screws
Inventor: RUCKERT HEINZ-JUERGEN
IPC: F16K27/02
Filed: 1989-09-14
Abstract: The locking flap has a housing (1) wedged between two flanges so that is through-flow hole is flush with the through-flow holes in the flanges. At least one end of the locking-flaps housing (1) has elastically deformable struts (8) for at least two facing flange-screws (9,10). The struts (8) are formed on the lining (4) of the locking flap and are joined to the lining (4) by means of bridge pieces (14) which lead via holes (13) in the metal end (7) of the locking flap's housing (1). USE/ADVANTAGE - The locking flap is automatically centred by struts covering holes varying between a max. and min. dia.
Patent DE-3931388-A1 (DE)
Title: Upper drawing roller hand grip - has pressure and pull surfaces with vertical and lateral displacement to give ergonomic shape
Inventor: STAEDELE NORBERT DIPL ING
IPC: D01H5/56
Filed: 1989-09-20
Abstract: The hand grip, to operate the upper roller of a drawing unit for pressure loading and release at the spinning machine, has a pressure surface on the upper side of the hand grip, and a pulling surface on the under side. The two surfaces are parallel to each other, with vertical and lateral displacement between them. The space and displacement between the two surfaces is 10-30mm. The two surfaces are curved parallel to the longitudinal direction of the lever. The pressure surface can be concave while the pull surface is convex. The hand grip assembly is made of plastics or a shaped metal plate. ADVANTAGE - The hand grip has the right ergonomic shape for ease of operation.
Patent DE-3932783-A1 (DE)
Title: Sealing ring for shaft with sealing lip - has helical pieces with contact surfaces, and sealing edge with contact surfaces
Inventor: HERMANN WALDEMAR
IPC: F16J15/3244
Filed: 1989-09-30
Abstract: The shaft (5) sealing-ring has a sealing-lip (4) with a sealing-edge (2). Helical pieces (3) on the sealing-lip side facing away from the flow-contents are positoined spaced apart behind each other in the peripheral direction. The helical pieces (3) together with the sealing edge (2) have contact-surfaces resting against the shaft (5). The ratio of the sealing edge (2) contact surfaces to the contact surfaces of the helical pieces changes by at most 35%. USE/ADVANTAGE - The sealing ring for a shaft gives a tight seal and incorporates helical pieces.
Patent DE-3933193-A1 (DE)
Title: Small portable IC engine - has T=shaped fuel tank fitting between filter and silencer on underside
Inventor: HIRONAKA YOSHIAKI
IPC: F02B77/00
Filed: 1989-10-04
Abstract: The IC engine has an air filter and an exhaust silencer on opposite sides of the crankshaft, and a fuel tank below them.  The filter (2) and silencer (3) are extended vertically downwards, while the tank (4) is T-shaped, with integral drum (8) and head (9) sections, the latter being widened to both sides. The drum section extends into a chamber (12) on the underside between filter and silencer. The side portions (9a,9b) of the head (9) extend in front of the bottom parts of filter and silencer. USE/ADVANTAGE - Light, compact IC engine operates with low raise' level.
Patent DE-4000862-A1 (DE)
Title: Rear door for hatch-back car - has additional link to attach it to gas spring to hold it in either of two open positions
Inventor: ENDERS STEPHAN DIPL ING
IPC: E05F1/10
Filed: 1990-01-13
Abstract: The rear door (5) of a hatch-back car is supported in either of two open positions by a gas spring (1). The piston rod (3) of the gas spring has an eye at its outer end in which on end of a short link (11) is pivoted. The outer end of this link is pivoted in a lug (12) fixed to the door (5). In the lower open position the link (11) extends towards the outer edge of the door (5) and is under tension when holding the door in this position. As the door is swung to the higher open position, the link (11) is rotated through approximately 180 deg and is under compression when holding the door in this position. USE - Rear doors for hatch-backs.
Patent DE-4001764-A1 (DE)
Title: Balcony etc. connectable floor slab - is installed to leave gap between it and main building
Inventor: SPRINGMANN GUENTER
IPC: E04B1/00
Filed: 1990-01-23
Abstract: The floor slab for a balcony or loggia is connectable to the main building. A gap (2) is left between the slab (1) and building (2), and can be used for water drainage. The slab is pref. secured to the building via vibratory metal components, and the gap can be covered by a non-sealing, extruded profiled component, or an inserted profiled one. ADVANTAGE - Min. cold bridges, dampness insulation, and easy erection.
Patent DE-4004870-A1 (DE)
Inventor: MOERTL GUENTER DR
IPC: C07K14/575
Filed: 1990-02-16
Abstract: A material for coating a lining of a metallurgical smelting vessel is based on refractory oxides such as sintered magnesia, chromium magnesia, sintered dolomite, chromium ore and/or zirconium dioxide.
Patent DE-4009756-A1 (DE)
Title: Blow-moulding open ended sealing sleeve - by first blow-moulding tubular parison with profiled smaller part and folding this round to fit against other part
Inventor: TEICHFISCHER GUENTHER DIPL ING
IPC: B65D1/02
Filed: 1990-03-27
Abstract: An open-ended hollow article, such as a sealing sleeve, bellows etc., with sealing lips or similar disposed radially on its inner face, is produced by blow moulding a softened thermoplastic tubular parison against the wall of a female mould. After blow moulding, at least one end of the moulding is turned round inwards to the other static part, so that the radially outer inside face of the moved part row lies against the inner face of the static part. ADVANTAGE - The procedure enables blow mouldings to be produced with sharp edges, even on the inside.
Patent DE-4010660-A1 (DE)
Inventor: HAERING HANS-JOSEF
IPC: B65D21/032
Filed: 1990-04-03
Abstract: The description relates to a three-part stackable pack or box (12) of metal, metal foil or metal/plastic composite film in which the body (3) and cover (7) or cover ring and the body and base (4) are secured together by a folded seam (5, 8). Both folded seams (5, 8) are shaped over a limited region of their axial height, especially by the formation of a shoulder (16), in such a way that, when stacked, they engage telescopically over this limited height.
Patent DE-4014410-A1 (DE)
Inventor: STAPELFELDT KLAUS
IPC: A22C11/02
Filed: 1990-05-04
Abstract: In a storage device for sausage casings, in particular for sausage casings which are gathered up in their longitudinal direction in the manner of a caterpillar, a supply shaft (12) projects with its upper end into a collecting container (2) and the bottom plate (14) of the collecting container (2) is movable between a lowest position, in which the bottom plate (14) lies with an edge region (22), which ends close in front of the supply shaft (12), below the upper end of the supply shaft (12), and a highest position, in which the edge region (22) of the bottom plate (14) is situated essentially at least at the height of the upper edge (24) of the upper end of the supply shaft (12), the distance between the edge of the edge region (22) and the outside (10) lying opposite of the supply shaft (12) being smaller over the entire movement path than the diameter of the sausage casings. <IMAGE>
Patent DE-4015189-A1 (DE)
Title: Packaging machine for goods - consists of shoulder, reciprocating feeder, welding cutter, and suction duct
Inventor: BUCK REINHOLD
IPC: B65B31/04
Filed: 1990-05-11
Abstract: The machine for packaging articles in foil has a shoulder (14) for forming a tube (15) from a length of foil coated on one side. A to-and-fro moving feeder (11) inserts the articles (18) being packaged into the tube. A welding-cutter (20,20') closes and cuts off the filled sections (15.1) of tubing. Between the shoulder and the welding cutter is a suction point (IV) for sucking out the air from the filled foil tubing. The suction point is formed of the end of a suction duct (21) leading through the shoulder and spaced apart from the guide-walls. USE/ADVANTAGE - Even heat-sensitive goods can be packed and sealed by the packaging machine.
Patent DE-4016551-A1 (DE)
Inventor: BAAS DIETER
IPC: G11B19/22
Filed: 1990-05-23
Abstract: In order to reliably stop a disk (CD) independently from its size and mass moment of inertia, a first braking impulse (B1) slows down the disk (CD) until it stands still then accelerates it in the opposite direction. In the meantime, the time that passes way until the speed of rotation of the disk (CD) reverses, following the first braking impulse (B1), from a predeterminable value +N to the value -N, is measured. At that moment in time the polarity of the first braking impulse (B1) is reversed and the second braking impulse (B2) thus generated ends after an interval T/2. The disk (CD) is thus slowed down in a reliable and speedy manner from the speed of the rotation -N to its complete standstill.
Patent DE-4017772-A1 (DE)
Title: Non-interrupting switching of optical communications path - by breaking optical fibre and switching to adjacent input end of outgoing optical fibre
Inventor: KUNZE DIETER DIPL ING
IPC: G02B6/32
Filed: 1990-05-30
Abstract: The switching device uses a switching optical fibre (13) next to the end of the outgoing optical fibre (12), within the light cone (31) obtained in the switching gaps (33) from the light output face of the incoming optical fibre (11). The width of the switching gap is sufficient to provide a light fleck dia. equal to the dia. of the outgoing and switchinq ootical fibres (1213). The switchino is effected - KK :KK :  KKK : :  KKK : '.  Kw to the axis of the incoming optical fibre (11). TAGEElimates need for T splice.
Patent DE-4019671-A1 (DE)
Title: Tool holder for use with machine tool - has coupling which permits degree of radial play
Inventor: WELLACH PETER
IPC: B23B31/02
Filed: 1990-06-22
Abstract: The tool holder for a machine tool consists of two parts (1,2) which are connected to each other by a coupling (3) which provides radial play but prevents relative rotation between the two parts.  The coupling (3) has a coupling disc which has at least two radial slots arranged at right angles to each other. One of these radial slots engages a pin (10) which is fixed to one of the parts (2) of the coupling whilst the other radial slot engages a pin (11) which is fixed to the other part (1) of the coupling.  The coupling (3) is supported on one side by an intermediate piece (13) which can be adjusted for angular position relative to its associated part (1) of the coupling (3). USE - Tool holder for a machine tool.
Patent DE-4022663-A1 (DE)
Title: Rigid polyurethane mouldings - mfd. by rim process, using poly:isocyanate(s), poly:ol(s) etc. with addn. of melamine to give high flexural modulus
Inventor: LUCKAS BRUNO
IPC: C08G18/65
Filed: 1990-07-17
Abstract: The prodn. of polyurethane mouldings (I) with density 0.8-1.4 g/cm3 and flexural modulus (DIN 53457) at least 2700 N/mm2, by reaction injection moulding (RIM), involves using a mixt. of (a) di- and/or polyisocyanates based on MDI, (b) polyether-polyols with mol. wt. 500-999 and at least 30 wt.% in-chain ethylene oxide (EO) units, (c) polyhydroxy cpds.  with mol. wt. 92-499 and OH functionality at least 3, and opt.  (d) polyethers with mol. wt. 1000-10000 contg. at least 2 NCO-reactive gps. and/or opt. (e) aromatic diamines with mol.  wt. below 500, in the presence of (f) catalysts for the addn.  reaction and (g) other normal additives; amts. of components are such that the mixt. has mean OH no. above 300; the novelty is that (g) consists of 40-100 wt.% melamine (II) (w.r.t. total wt. of b-e), and possibly other additives, etc.  Pref., the amts. of starting materials are such that the isocyanate index (no. of NCO gps./no. of NCO-reactive gps.) = 70-130. USE/ADVANTAGE - The process enables the prodn. of high-quality rigid polyurethane mouldings with good impact strength, e.g.  for industrial casings, equipment components, etc.
Patent DE-4023039-A1 (DE)
Title: Stroke ring adjustment for hydrostatic pump - has circuit for providing position signals from delivery pipe
Inventor: PFUHL BERTHOLD DIPL ING
IPC: F04B49/08
Filed: 1990-07-20
Abstract: The adjust is for the stroke ring (11) of a hydrostatic radial piston pump in which the relief valve (33) is connected parallel to the delivery pipe (16). It has a pressure balancing control slide (34) subject to a throttle (54). A pressure transducer (31) is connected to the pipe (16) which provides position signals to the electromagnets (18) of the valve (17) via electronic controls (30, 26). ADVANTAGE - Pump in which during the unloading sequences the flow forces acting on the relief valve do not react on the control valve.
Patent DE-4025590-A1 (DE)
Title: Mortar mixing and pumping device - is suitable for prepn. of fine grain mortar for renovation work
Inventor: BOGEL JOHANN DIPL ING
IPC: B28C5/12
Filed: 1990-08-13
Abstract: The appts consists of a mixing chamber (2), mixing tool (19) mounted on a central shaft (3). The shaft, motor driven (8), is linked by a demountable coupling to a screw pump (10). The mortar ingredients are loaded by the hopper (5), and the mixed mortar is pumped out at the opening (17). To ensure a uniformity of mix, the central shaft is inclined 25 to 30 deg from the vertical. USE - Mortar mixing appts is suitable for the prodn. of fine mortars as used in stone renovation work.
Patent DE-4027721-A1 (DE)
Title: High resolution image scanner - has wave-shaped or meandering structure simultaneously providing sensor zones and data lines
Inventor: GLESKE GERHARD DIPL ING
IPC: H04N5/372
Filed: 1990-08-30
Abstract: The high resolution image scanner has lines of sensor zones coupled to column data lines, each of the scanning sensor shaving a wave-shaped or meandering structure, simultaneously providing the sensor zones (SB) and the data lines (DL). The length of the wave-shaped or meandering structure is double the image pixel size (TL), the wave amplitude corresponding to half the pixel size (TL). The structure is formed from successive sinusoidal or semicircular curved sections. ADVANTAGE - Optimal scanning of surface of illuminated original.
Patent DE-4031284-A1 (DE)
Title: Honing, internal grinding or drilling -  involves tool on end of spindle supported on machine frame
Inventor: KLEIN GERHARD DIPL ING
IPC: B23Q39/02
Filed: 1990-10-04
Abstract: A spindle is provided at the end of which the tool (26) is fitted, and is rotated by a drive (30) together with a further mechanism (23) which advances it and retracts it. The workpieces handled (1) pass consecutively through one or more work stations (101). The tool (26), the spindle, the spindle drive (30), an adjuster mechanism (24), the advance and retraction drive (23) are all located as a tool unit (80, 81) on a bearing rail (21) fixed to the machine frame (20). The tool unit is horizontally displaceable, and can be pressed into position by tensioning means. USE - To machine cylinder bores vehicle engine blocks.
Patent DE-4032928-A1 (DE)
Inventor: LEFFER MICHAEL
IPC: F16L25/08
Filed: 1990-10-17
Abstract: The invention relates to a pipe connection, especially for drill pipes, in which the pipe parts to be connected coaxially to one another are provided with an annular-cylindrical recess on the outside or inside over part of their length and overlap one another along this part at least approximately to complete the full wall thickness of the pipe parts and in which the pipe parts, in the overlapped area, are provided with at least two radial bores, preferably a multiplicity of radial bores, which are arranged in particular in a uniformly distributed manner over the periphery and are coaxial to one another, in which bores rings are inserted via which the pipe parts are connected to one another by means of a threaded element in such a way as to be tension-proof and locked against rotation, in which arrangement the threaded rings (7), inserted into the wall of the pipe part (1) located on the inside and provided with a central tapped hole (9) as well as with an annular groove (13) having a tapered outer surface (15), are inserted from the inside into the pipe part (1) in such a way that, supported with an annular collar (8) on the pipe part (1), they are flush with the inner surface (36) of the pipe part (1), and the taper rings (10), inserted into the wall of the pipe part (2) located on the outside and provided with a central tapered bore (12), are inserted from the outside into the pipe part (2) in such a way that, supported with an annular collar (11) on the pipe part (2), they are flush with the outer surface (37) of the pipe part (2), and the pipe parts (1, 2) are connected to one another via the rings (7, 10) by means of a taper bolt (20) which comprises a ring (21), having a tapered outer surface (19), as well as a collar screw (22), rotatably inserted with radial clearance into this ring (21) and having a hexagon socket (31) or the like and a stepped head part (27), and is held with axial clearance in this ring (21) by means of a cover disc (23) surrounding the head-side end of the collar screw (22) and inserted flush into the ring (21), and, when the taper bolt (20) is screwed fully into the tapped hole (9) of the threaded ring (7), the axial clearance between collar screw (22) and annular taper (21) is neutralised by the collar-shaped extension (29) of the collar screw (22) bearing against a radial annular surface of the ring (21), and the annular taper (21) is pressed with its tapered outer surface (19) flush against the tapered inner surface (12) of the taper ring (10) and, in its extension with an annular projection (18) tapered on the outside, against the tapered outer surface (15) of the annular groove (13) of the threaded ring (7), and as a result the pipe parts (1, 2) are rigidly and frictionally connected to one another. <IMAGE>
Patent DE-4034321-A1 (DE)
Title: Asphalt for road construction is prepd. from bitumen - polybutadiene, stone chippings, sand, filler, and sulphur
Inventor: KAHLERT ERWIN DIPL CHEM DR
IPC: C08L95/00
Filed: 1990-10-29
Abstract: Asphalt (I) is prepd. by: (1) incorporating (A) 6-15 pts. (all pts. wt.) mixt. of (A1) 78-98% bitumen with softening pt. 35-72 deg. C, contg. at least 25% resin, and (A2) 2-10 pts. polybutadiene with no. average mol. wt. 2000-10,000, iodine no. 350-450 g/100 g, viscosity 1-250 Pa.s at 20 deg. C into (B) 85-94 pts. mixt., preheated to 160-230 deg. C, of stone chippings, sand, and filler; (2) adding 0.012-0.3 pt. S and stirring for up to 12 hrs. Also claimed is prepn. of (I) wherein (A1), (A2), and S are mixed at 120-140 deg. C then heated with (B) at 160-230 deg. C and stirred for up to 12 hrs. Up to 50% of bitumen is resin-rich hydrocarbon mixt. from petroleum processing and/or pitch or tar from coal or lignite, processing. Up to 50% polybutadiene is high mol. synthetic rubber. USE/ADVANTAGE - Road construction, partic. highly stressed roads, bridge surfaces, traffic crossings, etc. (I) has high flexure at below freezing pt., good adhesion to mineral component and various substrates, and good resilience after deformation.