baber/WOPTO huggingface dataset:
Patent DE-3926357-A1 (DE)
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/28
Filed: 1989-08-09
Abstract: A valve gated injection molding system having a novel valve member for large volume applications. The elongated valve member (66) has a ribbed insulative portion (94) between the main steel portion (96) and a conductive portion (98) adjacent the tip end (80). The conductive portion (98) provides more rapid cooling when the tip end (80) is seated in the gate in the closed position. The adjacent insulative portion (94) provides a thermal barrier to reduce heat flow along the valve member to the conductive portion (98). This combination avoids sticking of the tip end (80) when the mold opens and thus allows cycle time to be reduced. The conductive portion (98) has an integral beryllium copper plug (108) which is supported by radially extending ribs (102) of the insulative portion (94) to withstand continual repeated impact loading every time the gate is closed.
Patent DE-3930810-A1 (DE)
Title: Hard copy video image printer - has control for drive and heating element assembly for setting to temp. required to sublimate ink on foil
Inventor: SATO MASAMICHI
IPC: B41M5/392
Filed: 1989-09-14
Abstract: The thermal printer for coloured video images includes a driving and excitation section with heating elements (20) which are held in contact with a composite strip (14) forming an image retaining medium. This is unwound from a supply roller and onto a take-up roller of a cartridge while being supported by a printing roller (32). The strip has a plastics base layer (100) with a smooth surface which includes zones (102Y) carrying the three colours used to form the coloured image, separating parts (106) and free parts (102T) with reflective surfaces. The base layer is separated from the image receiving layer (14) which receives the coloured coating (56) as it passes under a separating roller (39) after a certain time has elapsed, and the softening point has been reached. The control system includes a heating data generator for the heating elements. ADVANTAGE - Simple, compact design with efficient colour printing action.
Patent DE-3931003-A1 (DE)
Title: Direct metallisation of circuits boards
Inventor: BRESSEL BURKHARD DIPL CHEM DR
IPC: H05K3/18
Filed: 1989-09-14
Abstract: Direct metallisation of circuit boards, pref. in a horizontal treatment line, without use of electroless plating electrolyte, is effected by producing, selectively on non-conductive portions of the boards, a multifunctional adsorption layer  which can act as an oxidising agent or which can adsorb and/or store an oxidising agent in pores, the oxidising agent then being reacted with monomers which form conductive polymers allowing electroplating.
Patent DE-3934474-A1 (DE)
Title: Increasing capacity of box annealing furnaces for coiled products - involves introducing scavenging gas during cooling phase to reduce cooling time and prevent oxidation of product surface
Inventor: BAHTELT JUERGEN DR ING
IPC: C21D9/67
Filed: 1989-10-16
Abstract: Means for increasing the unit capacity of box annealing furnaces involving heating and cooling the coiled products in a protective atmosphere, has the novelty that during the cooling stage a first scavenging phase is undertaken in which gas is introduced into the chamber such that the volume of gas entering equals that which leaves. A scavenging-free phase in which no protective gas leaves the chamber, then follows after which further gas can be introduced. During the scavenging-free phase, partial flow of protective gas is effected by circulating that which is already in the chamber. ADVANTAGE - The furnace capacity is increased by shortening the duration of the cooling phase in the protective gas atmosphere. Furthermore, oxidation reactions of the product surface leading to coloration of the coil's surface on its removal from the furnace, is avoided.
Patent DE-4002369-A1 (DE)
Title: Multistage fibre=optic amplifier - provides constant amplification over large range of wavelengths using selective directional coupler and pump light source
Inventor: HEIDEMANN ROLF DR RER NAT
IPC: H04B10/293
Filed: 1990-01-27
Abstract: The amplifier (20) has its light signal input (21) and output (22) connected to a 1536 nm monomode fibre with two or more amplifing stages (11,12...1n) in cascade. A light signal amplified fibre section (31,32,...3n) has at least one lathanoid, a wavelength selective directional coupler (41,42,...4n) and a light source pump (51,52,..5n). the output end of the fibre section (31,32...3n) of an amplifying stage (11,12..1n) is connected to the input of the directional coupler of the next stage. The fibred sections (31,32...3n) of the different stages have different dimensions or materials.
Patent DE-4010080-A1 (DE)
Title: Cooling fan for IC engine - has blades with profile allowing single piece die cast manufacture
Inventor: LICHTBLAU LEO DIPL ING
IPC: F04D29/38
Filed: 1990-03-29
Abstract: The cooling fan for i.c. engines has blades arranged around the hub such that the fan can be die cast in a single piece and removed axially from the mould. The minimum necessary width of the form boundary (amin) is related to the cylinder diameter (D), the minimum separation angle (theta min) between two neighbouring blades, the depth of that blade (L) and the blade angle (gamma md), and the contact angle of the blade boundary surface (x): amin = D/4 theta min - L/2. (cos gamma md + sin gamma md . tan x).
Patent DE-4010587-A1 (DE)
Inventor: SISAK CSABA DR
IPC: C12M1/40
Filed: 1990-04-02
Abstract: The reaction space (15, 75) of the apparatus where reaction between the liquid phase and solid granular biocatalyst takes place is separated from the space that serves for intensive contact between the gas - generally oxygen - and the liquid phase. The latter space is the interior of a circulation pipe (50, 85). One end of the circulation pipe (50) leads out from the reaction space (15, 75) and the other end leads into it. The circulation pipe (15, 75) is divided by a butt-in pump (38, 86) into suction branch (37, 87) and pressure branch (39, 88). In the direction of the medium-flow (g) proceeding from the pump (38, 86) towards the point of leading the pressure branch into the reaction space, successively first a flow-accelerating element (49, 89) is built into the pressure branch (39, 88), then a gas food pipe (48, 92) is leading in, and thereafter gas dispersing elements (45, 46) are built in. Filter 21 prevents loss of catalyst. <IMAGE>
Patent DE-4025065-A1 (DE)
Inventor: GIESEN BRIGITTE
IPC: C11D1/83
Filed: 1990-08-08
Abstract: The concentrates consist essentially of 50 to 80 wt.% of water, 5 to 30 wt.% of an alkyl glycoside of formula R<1>-O(G)n, wherein R<1> stands for an alkyl residue with 8 to 22 carbon atoms, G stands for a glucose unit and n stands for a number between 1 and 10, 3 to 20 wt.% of a surface-active, long-chain alkyl sulphate of formula R<2>-O-SO3X, wherein R<2> stands for an alkyl residue with 12 to 22 carbon atoms and X stands for an alkali ion or ammonium ion, and 1 to 15 wt.% of a short-chain alkyl sulphate of formula R<3>-O-SO3Y, wherein R<3> stands for an alkyl residue with 6 to 10 carbon atoms and Y stands for an alkali ion or ammonium ion. The tenside mixtures are used as free-flowing, pumpable premixes (compounds) with long storage life, preferably for the manufacture of detergents or cleaning agents.
Patent DE-4025124-A1 (DE)
Title: Lightweight internal combustion engine valve gear - has leaf type plastic valve spring to move poppet valve
Inventor: KORINTH JUERGEN
IPC: F16F1/368
Filed: 1990-08-08
Abstract: Valve gear for an internal-combustion engine has a poppet valve (1) moved into an end position by a plastic, partic. C-fibre-reinforced spring. The spring is of the leaf type, may contains a kink, and can be integral with a rocker lever and with a valve spring plate. There can also be a further arm contg.  a pivot on the lever. ADVANTAGE - Lightweight valve gear is obtd.
Patent DE-4026718-A1 (DE)
Inventor: BABEL GERHARD DR
IPC: H01B7/00
Filed: 1990-08-24
Abstract: A cable tree comprises leads grouped into bundles and elements which fit the cable tree to a predetermined three-dimensional shape. A shaping, reinforcing element is arranged in each bundle of leads.
Patent DE-4027471-A1 (DE)
Title: Stereoscopic TV display equipment using interaction of beams -  detects position of viewer as basis for variable activation of optical absorption in region of intersection
IPC: H04N13/00
Filed: 1990-08-30
Abstract: Two or more laser or electron beams interact in the gaseous or liq. filling of a glass vessel, so as to produce visible changes such as self-luminous points or scattering centres from which a three-dimensional image is created. The beams may be deflected either by electric or magnetic fields or by rotary or moving polygonal mirros. The brightness of particular points is varied in accordance with position of the viewers. ADVANTAGE - Viewer sees picture undistorted by superposition of effects at points on line of sight.
Patent DE-4028992-A1 (DE)
Title: Motor vehicle door lock with motor-driven locking lever - rotated between two positions to allow intermediate lever to be pivoted w.r.t. release lever
Inventor: ANDREI-ALEXANDRU MARCEL
IPC: E05B65/12
Filed: 1990-09-13
Abstract: A rotary latch (12) incorporating a recess (13) for a locking bolt (14) is actuated by a catch (16) with a release lever (20) coupled to it by a two-position locking lever (30). The release lever (20) rotates about a fixed axis to operate an intermediate lever (23) engaging the catch (16). In one position of the locking lever (30) the intermediate lever (23) is fixed w.r.t. the release lever (20); in the other position the intermediate lever (23) can be pivoted freely w.r.t. it. ADVANTAGE - Less force is required to adjust locking lever which requires no bolt through release lever.
Patent DE-4032551-A1 (DE)
Title: Lever micrometer -  has lever with unequal arms and three blades including central blade connected to scale via rod
Inventor: EFUNE MICHAIL
IPC: G01B3/18
Filed: 1990-10-13
Abstract: The micrometer includes a lever (1) with unequal arms and a ring gear which engages the teeth of a toothed drive. The lever has its balance edges supported on a prismatic support and its shorter arm connected to a measurement scale (2) via a blade connection. The lever can have three blades. Two are lateral weighing blades (3) engaging the prismatic support (4) which is attached to a base (5) and the other is a central blade (6) which is connected to the scale via a rod with prismatic slots (7). USE - For measuring dimensions of fine mechanical parts with accuracy of .001 mm.
Patent DE-4034721-A1 (DE)
Title: Lightweight concrete contg. chopped waste foamed polystyrene granules - has better adhesion to sealing coatings than concrete contg. freshly foamed granules
Inventor: KESTING LORENZ
IPC: C04B16/08
Filed: 1990-11-01
Abstract: Polystyrene-concrete (I) contains, in addn. to cement and sand, chopped foamed waste polystyrene (II) granules for redn. of wt. USE/ADVANTAGE - Forming low wt., heat-insulated wall sections. Sealing compsns., based on resin and contg. filler (e.g. polystyrene granules) and reinforcement (e.g. grating of plastics material or fabric) and applied to outer surface of walls to reduce weathering and cracking, adhere more strongly to (I) than to concrete contg. freshly foamed polystyrene granules (i.e. those sent out in unfoamed state and steam-heated on site just before use to expand them). Crack formation is reduced. (I) has higher density than concrete contg. freshly foamed polystyrene but higher final strength and better quality for use as moulded parts. Waste (II) from packaging can be used, so avoiding dumping etc. (0/0)
Patent DE-4035309-A1 (DE)
Inventor: REIME GERD
IPC: H04N5/931
Filed: 1990-11-07
Abstract: In the signal path (1) for the frequency-modulated luminance signal of a video recorder, an equalising circuit (11) is disposed between the video band (2) and the frequency demodulator (3) which, whenever the luminance signals fall below a specific switching level (U16), operates in the mode of a bandpass filter (19) which is tuned to the carrier frequencies of the luminance signals and, whenever the luminance signals exceed this switching level in the direction of higher values, operates in the mode of an amplitude-controlled delay unit. In the latter mode, phase errors caused by recording and transmission are largely cancelled, whereas, in the former mode, oscillation patterns with deteriorated oscillations are again refreshed in terms of amplitude through the resonance effect. The height of switching level (U16) is set by a noise detection circuit (21) which detects the rate of the oscillations which do not pass through a specific detection level of the noise detection circuit situated in the vicinity of the sound point line of the frequency demodulator. The equalising circuit is thereby adapted to the different reproduction quality levels of different video tapes in such a way that image reproduction with minimum interference and maximum definition is achieved. <IMAGE>
Patent DE-4103378-A1 (DE)
Title: Local traffic system - utilises suspension of road vehicles with catches on roofs of vehicles and provision for taking traction current from batteries under seats
Inventor: SINNHUBER RUPRECHT DIPL ING
IPC: B61B3/00
Filed: 1991-02-05
Abstract: Each vehicle (1) participating in the traffic can travel either on the carriageways using its conventional road wheels, or as a unit of an overhead suspension system to which it is attachable by roof-mounted catches (2). Traction current in both instances is taken from batteries (3) under the two seats (4) which fold down (5) in front of a luggage space (6) above a frame (7) capable of functioning alternatively as a wheelchair or child's safety seat. ADVANTAGE - Driver can avoid congested streets and inaccessible city centres by transfer of vehicle to suspension system.
Patent DE-4103705-A1 (DE)
Inventor: BENEDIKT WALTER ING GRAD
IPC: G01L9/00
Filed: 1991-02-07
Abstract: In the pressure sensor (11) proposed, the pressure is transmitted through a diaphragm (14) and a punch (18) to a piezo-resistive sensor element (19). Since no precise mechanical alignment is necessary between the diaphragm (14) and the piezo-resistive element (19), various relatively inexpensive types of membrane of differing sensitivity can be used.
Patent DE-4105597-A1 (DE)
Title: Continuous winding of plastics foil webs onto sleeves - is performed using two pairs of retaining arms each holding winding sleeve
Inventor: MEYER HELMUT
IPC: B65H19/30
Filed: 1991-02-22
Abstract: When winding up plastics foil webs on a winding sleeve the winding device has a first pair of retaining arms (1) which are set opposite each other with the distance of the winding sleeve and serve to hold the winding sleeves (2). A second pair of retaining arms (3) which are spaced from each other by the distance of the winding sleeve also serve to hold the winding sleeves (2). All the retaining arms (13) are of equal length and can be swivelled in pairs independently of each other in the same direction about the same geometric axis. USE/ADVANTAGE - Winding plastics foil webs on winding sleeve. It is now easy to produce the required positions for winding, removing the finished roll and inserting new winding sleeves.
Patent DE-4106325-A1 (DE)
Title: Anaesthetic evaporator operation - involving initial depressurisation without anaesthetic gas escape
Inventor: FALB WOLFGANG
IPC: A61M16/18
Filed: 1991-02-28
Abstract: Operating an anaesthetic evaporator having an evapn. chamber (7) with a fresh gas line (3) from which a carrier gas line (8) branches (5) for enrichment with anaesthetic gas evapd. from the liq. in the evapn. chamber, the carrier gas flow being adjustable by a dosing device (11,12) and the carrier gas line (8) being united (14) with a bypass fresh gas line (6) downstream of the evapn. chamber to form an anaesthetic gas line (15). On interruption of flow through the evapn. chamber (7), the fresh gas is diverted via a bypass section (22) by diversion elements (20, 21) at the branching (5) and uniting (14) points and dosing device (11, 12) operation is blocked by a locking arrangement (17, 40). Prior to allowing flow through the evapn. chamber (7), the chamber interior is adjusted to a temp. at which its internal pressure is the same as or below ambient pressure or is the same as that of the anaesthetic gas line (15). ADVANTAGE - Prior to operating the evaporator, any excess internal pressure is relieved or prevented, without escape of anaesthetic gas
Patent DE-4107051-A1 (DE)
Title: Low noise tyre tread profile - has series of blocks of different sizes separated by grooves of different depths, some of which are also e.g. stepped
Inventor: CLOTH WERNER F
IPC: B60C11/11
Filed: 1991-03-06
Abstract: Tyre has a tread with a profile made up of a number of elements divided up by longitudinal and transverse grooves, but with a break in specific area where desired. Pref. the tread has many elements of different sizes. Small blocks (A) have small road contact and resistance; somewhat larger blocks (B) and medium size blocks (C) are also present, whilst others (D,E) are very large and the latter (E) have relatively great road contact, a large volume and usually high resistance. These blocks are joined by grooves (St) of varying depth which can be divided into four stages. In the case of IV the base of the groove is partly interrupted in depth, but where the feature is shown as (g) (e.g, IIg) the base extends across the full length of groove. The effect of the variations in the details is to vary the vibrating behaviour and hence to reduce the overall noise generated. ADVANTAGE - The tread design minimises noise prodn. by suppressing their generation and improving the damping of vibrations in the profile blocks and grooves. It can be applied to any tread profile system.
Patent DE-4108705-A1 (DE)
Title: New halogenated tetra:cyclic benzene derivs. - and use in liq. crystal media for electro=optical recording
Inventor: REIFFENRATH VOLKER
IPC: C07C22/08
Filed: 1991-03-16
Abstract: New tetracyclic benzene derivs. of formula (I) are claimed. n = 1-7; A = trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or 3,5-difluoro-1,4-phenylene; X = F, Cl, CF3, OCF3 or OCHF2; L, Y, Z = H or F. USE - (I) are used components of liq. crystal media for electro-optical recording, with the medium contg. at least 2 liq. crystal components, at least 1 of which is (I) (claimed). Electro-optical recording is based on a liq. crystal cell contg. the medium. A specific example of (I) is given by 1-(3,4-difluorophenyl)-4-(p-n-propylphenyl)-cyclohexyl)-cyclohexene (II).
Patent DE-4113200-A1 (DE)
Title: Device for cutting and marking dough shapes in mfr. of e.g. bread rolls - has rollers to hold dough shapes in place as they pass in rows beneath cutting discs on transverse shaft and later press in sides of each shape
Inventor: BENDER MANFRED
IPC: A21C11/10
Filed: 1991-04-23
Abstract: A new device for cutting or marking dough in the manufacture of e.g. bread rolls consists of (a) a longitudinally movable support surface for receiving the raw dough shapes in parallel rows, (b) a transverse shaft located above this surface and fitted with a number of cutting discs which rotates so that they operate in the direction of motion of the support surface, each disc being located above a row of dough shapes so that it cuts the shapes longitudinally, (c) a shaft parallel to and behind the cutting disc shaft and fitted with freely rotating rollers for holding the dough shapes in place, and (d) pairs of contra-rotating rollers which operate in the direction of motion of the support surface and which press in the sides of the dough shapes after they have been cut by the cutting discs. The support surface consists of a moving conveyor belt on which trays may be placed, and preferably contains parallel ridges or depressions for maintaining the orientation of the dough shapes. USE/ADVANTAGE - Used in bakeries for producing e.g. bread rolls in which a required form of crust is achieved by means of a knife cut in the upper surface of the raw dough shape before baking. The dough shapes are prepared in a continuous automatic process whose results are very close to those of the traditional manual procedure.
Patent DE-4113875-A1 (DE)
Title: Walking support frame - is used for longwall face working in coal mine, and has roof cap linked to ground skid by system of articulated arms running transversely
Inventor: BOLLMANN ALFRED
IPC: E21D23/00
Filed: 1991-04-27
Abstract: A walking support frame on the longwall face working of a coal mine has a ground skid (1) which runs across the working direction from the stakcing side to the coal face. It has a roof cap (4) with telescopic hydraulic jacks fixed to the skid (1) by double hinged arms (7,8,9,10) and to secure the roof at the intersection of road and longwall the link arms (8) run across the skid (1) in a projection on the ground (L), and the hinges (9) rotate on axles (10) running in the direction of the skid (1). The roof cap (4) is moved to and fro in line with the road and across the skid (1), and the rocker (7) moves in and out through an integral ram (12) as the cap (4) moves to and fro. USE/ADVANTAGE - Gives good support to the roof at the intersection of road and longwall.
Patent DE-4115393-A1 (DE)
Title: Joint bonding machine for furniture - has feed device with insertion pressure, set to compression pressure in timber on pressure bed
IPC: B27M3/00
Filed: 1991-05-07
Abstract: The joint bonding machine has a pressure bed and a feed device. This moves individual timbers of timber parcels, against a brake. This is located at the end of the pressure bed, and acts on the timber. The insertion pressure (PE) of the feed device (5) is set to the level of the compression pressure (PP) in the timber (8) on the pressure bed (1). The brake pressure (PB) of the brake (3) is regulated as a function of the actual value of the insertion pressure, so that that pressure corresponds to the level of the compression pressure in the timber. The feed device is connected to hydraulic cylinders (6), controlled by pump, and proportional path- and pressure valves (10). USE/ADVANTAGE - Joint bonding machine for furniture is safe to operate.
Patent DE-4122629-A1 (DE)
Title: Adjustable pedal mechanism for motor vehicle - has pedal arms mounted on rotatable shaft with adjustment transmission sets contg. pinions and gear wheels
Inventor: FISCHER ROLAND
IPC: B60K23/00
Filed: 1991-07-09
Abstract: The adjustable pedal mechanism uses at least one pedal arm (2-4), an adjuster for the position of each associated pedal arm and a mounting arrangement for attachment to the vehicle chassis. The pedal arms are mounted on a rotatable shaft (10) and each is adjusted via a transmission (14-19) and an eccentrically mounted component (20) connected to it. Each transmission contains a pinion (14-16) attached to the shaft and a gear wheel (17-19) which engages the pinion. ADVANTAGE - Can be adjusted continuously by single motor and is simple to operate.
Patent DE-4123776-A1 (DE)
Title: Counterbalanced jigging conveyor for workpiece realignment or buffering - allows fine-tuning of transport speed with frequency of vibration adjustable digitally in very small steps
IPC: B65G27/30
Filed: 1991-07-18
Abstract: The useful mass (m1) of the system is constituted by the chute (03) with its vibratory beam (07) and magnet yoke (06) together with the workpieces in transit. It is joined to the counter weight (m2) by pivoted spring sets (c1). The counter weight (m2) is attached to the frame (m3) by separate pivoted spring sets (c2) in the plane of its centre of mass (s2), so that the vibrator operates at a frequency above resonance and acts in a vertical direction on the structure. The vibration frequency of the conveyor is electronically controlled in very small jumps, e.g. digitally. ADVANTAGE - Smooth transport of workpieces is achieved by more sample jigging at lower frequency and with soft springing.