baber/WOPTO huggingface dataset:
Patent DE-3835953-A1 (DE)
Title: Process and compression-folding machine for the folding and simultaneous adhesive bonding of form letters
Inventor: GIMMEL SAMUEL
IPC: B43M5/04
Filed: 1988-10-21
Abstract: The form letter (10) is subdivided into two letter parts (16, 18) by the folding line (14). As seen in the direction of the arrow (Z), the leading letter part (16) has re-moistenable adhesive (22) in the portion (20). The letter part (18) is likewise provided with re-moistenable adhesive (22') in the edge portions (30). When the leading letter part (16) is being introduced into the folding pocket (40) of a compression-folding machine, the adhesive (22) is wetted by a moistening device. The adhesive (22') is likewise moistened by the wetting elements (42). During the subsequent folding along the folding line (14), the two letter parts (16, 18) come into overlap with one another and are adhesively bonded along the side edges (12) and along the end region of the overlap located opposite the folding line (14). <IMAGE>
Patent DE-3841226-A1 (DE)
Title: Ultrasonic transducer with recessed piezoelectric body
Inventor: DAEGES JOHANNES DR
IPC: B06B1/06
Filed: 1988-12-07
Abstract: The ultrasonic transducer comprises a piezoelectric body (1) with electrodes (2, 3) and an adaptation layer (4). The piezoelectric body (1) is induced to produce radial oscillation by applying an alternating electrical voltage. To obtain a large energy transmission from the piezoelectric body (1) to the adaptation layer (4) and thus a large ultrasonic radiation, the piezoelectric body (1) is accommodated with accurate fit in a recess (8) in the adaptation layer (4), in such a manner that a direct contact exists between the side wall of the piezoelectric body (1) and the side wall of the recess (8) in the adaptation layer (4). The ultrasonic transducer is equipped, in particular, with a weighting ring (7). As a result, it generates an ultrasonic beam with a very narrow aperture angle. Such an ultrasonic transducer can be used, in particular, in the field of sensors (for contactless switches). <IMAGE>
Patent DE-3843092-A1 (DE)
Inventor: STEPHAN MARC
IPC: C01B17/94
Filed: 1988-12-21
Abstract: A continuous process for the degradation of nitroglycerine in the residual aclds from glycerol nitration comprises adding water or dilute sulphuric acid to the residual acids to improve the solubilisation of the nitroglycerine and then passing the residual acids to a plant comprising a circulating loop which comprises successively, in the direction of circulation of the acids, an inlet for the acids after addition of water or dilute sulphuric acid, an external microwave heating system for the acids, an outlet for the mixture thus treated, and an outlet for nitrous fumes. The invention also provides plant for carrying out this process.
Patent DE-3902996-A1 (DE)
Title: Method for cooling high-temperature coke
Inventor: HOLLENHORST DIETER DIPL ING DR
IPC: C10B39/04
Filed: 1989-02-02
Abstract: A novel method for cooling high-temperature coke is proposed, in which the coke is cooled in direct heat exchange with a fluid, preferably water, as a heat-dissipating cooling medium under elevated pressure and the cooling medium constantly remains in the liquid state during the cooling process in the cooling chamber. <IMAGE>
Patent DE-3903419-A1 (DE)
Title: Mass-balancing arrangement
Inventor: NEUMANN JOACHIM ING GRAD
IPC: F02B75/02
Filed: 1989-02-06
Abstract: A description is given of an arrangement for balancing the inertia forces and/or torques of a reciprocating piston crankshaft engine, in which a pair of balancing shafts (15) arranged parallel to a crankshaft (3) held in a crank case (2) and having eccentric balance weights (16) is provided, the shafts being drivable by the crankshaft at a multiple of the speed of the crankshaft corresponding to the order of the forces to be balanced. In order, in an arrangement of this kind, to avoid the need to widen the crank case and, in addition, to provide the possibility of operating the crankshaft engine either with or without the balancing arrangement, the balancing shafts (15) are to be mounted in balance housings (12) that can be attached as closed constructional units (11a, 11b) to the closed crank case (2) of the reciprocating-piston crankshaft engine (1). <IMAGE>
Patent DE-3911914-A1 (DE)
Title: Roller bearing assembly with housing bore for support ring - has thin-walled bending resilient ring to avoid over-strain on roller bodies
Inventor: GLOECKNER HERMANN
IPC: F16C27/04
Filed: 1989-04-12
Abstract: Roller bearing assembly containing a housing with bore which supports a support ring with cylindrical inner face. The support ring (5) is resiliently bendable with thin walls and has an outer face (11) with two diametrically opposite support sections (13,18,23) across the direction of the radial strain (F). These support sections are supported on a support face (14,20) of the housing bore (2) in the direction of the radial load. At least one of the two support sections is mounted for sliding displacement across this direction on its support face (14,20,26). USE/ADVANTAGE - Roller bearing. Individual roller bodies on the circumference of the housing bore are not over strained even when the assembly has a relatively high radial load.
Patent DE-3912720-A1 (DE)
IPC: A61B1/00
Filed: 1989-04-18
Abstract: An endoscope consists of an optical guide (2) and a video transmission system (3, 11) with an objective (11) arranged at the distal end, the image of which is transmitted to the proximal region by a relay lens system (3). The optical guide (2) has a hollow cylinder made of a transparent, optically clear material which surrounds the objective (11) and the relay lens system (3). The light from an illuminating light source can be input into the annular front face of the hollow cylinder.
Patent DE-3914071-A1 (DE)
Title: Electronic flash unit for underwater photography - has variable output spectrum for compensating colour distortion caused by light filtration effects in water
Inventor: WITZIG WOLFGANG
IPC: G03B15/05
Filed: 1989-04-28
Abstract: An electronic flash unit for underwater photography has a housing (1) for accommodating the flash control components and a reflector (2) for concentrating the light of two separate flash tubes (3,4) which emit differing light spectra. The tubes (3,4) are of annular or U-shape form and are mounted concentrically in the same plane (E) w.r.t. the reflector centre (M). A separate switch (S) for each tube (3,4) enables target illumination by either or both of the tubes (3,4) to provide suitable compensation for colour distortion arising from filtration by the intervening water. ADVANTAGE - Gives three step control of red content of the light spectrum to compensate for distance from target and correction of colour balance.
Patent DE-3914795-A1 (DE)
Title: Voltage controlled amplification of input signal - feeding correction signal for characteristic fault into logarithmic and/or anti-logarithmic paths
Inventor: KERN OTMAR
IPC: H03G7/00
Filed: 1989-05-05
Abstract: The input signal is subjected to a logarithmic and anti-logarithmic process during the voltage controlled amplifying. During the logarithmic and/or anti-logarithmic process is applied a correction signal, compensating the characteristic fault of the processes. Pref. the correction signal is derived by suitable output coupling from the logarithmic process. Alternatively the correction signal is derived from the input signal (Ue), or from the output signal (Ua). The input signal is typically and audio signal and the circuit comprises a logarithmic stage (V1, T1, 2) an an anti-logarithmic stage (V2, T3, 4). USE/ADVANTAGE - For audio studio VCAs. Improved noise ratio.
Patent DE-3922926-A1 (DE)
Title: Determination of trends in random number groups - gives information on variation of numbers or of each type
IPC: G07C15/00
Filed: 1989-07-12
Abstract: The system refers to patent P3921848.1, and is applied to a series of members, irrespective of the type of members, giving information on the variation of the members or the numbers of each type e.g. black or white. The overall direction and values of the number are calculated through recognition of the trend and the resultant figures. USE - Control of random values in series.
Patent DE-3925570-A1 (DE)
Title: Tightening system for car safety belt - makes use of sliding carriage in slotted rail
Inventor: ADE HANS DR
IPC: B60R22/26
Filed: 1989-08-02
Abstract: The tightening arrangement is for a safety belt in a vehicle.  The tightening energy is converted to a tightening movement on the release of a prestressed spring. The connecting part (11) is secured to a sliding carriage (12) guided in a rail (12) secured to the vehicle and subject to the spring (23) whereby the carriage and the rail each have teeth (17,20) to secure the carriage  before the start and after the end of the tightening movement. USE/ADVANTAGE - Vehicle safety belt tightening system in which the energy available in the  spring is fully usable and the tightening operation is made safer.
Patent DE-3932928-A1 (DE)
Title: Producing dial showing time by phase-wise colour change - assigning colour to each hour with area of presently passing hour increasing to indicate lapse of minutes
Inventor: EHLERS ROLF
IPC: G04B45/00
Filed: 1989-10-03
Abstract: Each hour that has passed is fully visible by its assigned colour while the colour of the preset hour slowly extends over the dial area until it too fills its assigned area. In an electrically driven quartz clockwork, two electrically pwoered laser generators are controlled with the aid of a microchip such that a  predetermined coloured light for each hour is generated via a freq. converter.  The coloured light is transmitted via a convex mirror under the dial.  As well as the freq. modulation the clockwork can also regulate the aperture for segments of filter discs mounted in-front of the outputs of the laser generators.  This enables an observer to tell at a glance how much of the preset hour has elapsed, i.e. minutes and perhaps seconds past the hour. ADVANTAGE - Reduced number of colours  required to define time of day.
Patent DE-3936747-A1 (DE)
Title: Drill bit for PCB - has rear angled face at each end of front cutting edge
IPC: B23B51/02
Filed: 1989-11-04
Abstract: The drill bit has a helical cutting thread with a pointed cutting edge (5) at its free end, with an angled face (6) at each outer end of the latter. Each of these angled faces is angled backwards at an angle (alpha) of about 30 deg. and has a width (b) of between 0.1 and 1.5 mm. Pref. the drill bit cutting edge is of an ultra hardened cutting steel and has a dia. between 0.5 and 6.0 mm. It may be divided into two or more sections (7,8,9) which exhibit different cutting angles. USE - Precision drilling of electronic circuit boards.
Patent DE-3938968-A1 (DE)
Title: Tractor-mounted implement for silage removal - has pre-conveyors with rotary loosening tools
Inventor: LENGERICH WILLI VAN
IPC: A01F25/20
Filed: 1989-11-24
Abstract: The tractor-mounted implement with a U-shaped cutting tool (7) for removing silage from clamp silos has at least two pre-conveyors arranged beside each other and running along the interior of the silage container (4), relative to the silage removal conveyor (18). The pre-conveyors have tools for loosening the silage material, arranged in front and capable of rotary movement. USE/ADVANTAGE - The implement is mounted on a tractor. It can effectively cut out and remove even fibrous silage.
Patent DE-3940832-A1 (DE)
Title: Fibre optic flow monitor for multiple phase flows - contains fibre optical position filter acting as differential grid for flow contg. ferromagnetic impurities
Inventor: PETRAK DIETER DR
IPC: G01P5/18
Filed: 1989-12-11
Abstract: The fibre optical flow monitor contains a fibre optical position filter operating as a differential grid by absorption and reflection to monitor the vol. flow via the flow speed.  A predefined flow speed fed in as a desired value produces a narrow band signal whose centre frequency is  proportional to the flow speed. Electronic frequency filters of high order consistt of high low and/or bandpass filters whose lower, upper or centre frequencies can be matched to the centre frequency corresp. to the required flow speed. The signal produced when the required speed is reached is prepared by conventional analogue electronic techniques to form display and control signals. USE/ADVANTAGE - For monitoring flow of multiple phase flows contg. different, dispersed, esp. including solid,  ferromagnetic impurities. Hardware costs and measurement time are reduced by eliminating digitising of signals.
Patent DE-4001396-A1 (DE)
Title: Fluid coupling with housing - has drive shaft with cover, plate and valve plate, with bimetal and absorber
Inventor: MIZUTANI KENICHIRO
IPC: F16D35/00
Filed: 1990-01-18
Abstract: The fluid coupling has a housing supported by a drive-shaft and to which a cover (6) is fixed. A plate fixed to the. cover (6) is divided into an accumulator part and operating part in which is a rotor. A valve plate opens or closes an opening in the plate. A pin (12) supported by the cover is fixed tothe valve plate and has a bimetal (13) on the inner end of the pin (12) and outer end (19) of the cover. Between the cover and the bimetal (13) is an absorber consisting of a rubbe and support (21) fixed to the cover.
Patent DE-4004932-A1 (DE)
Title: Radial fluid pressure motor - has cam and roller operated pistons with piston ring at piston base carrying turning moment
Inventor: WUESTHOF PETER DR ING
IPC: F04B1/04
Filed: 1990-02-16
Abstract: The cylinder block (100) turns about a rotation axis (160) with pistons (120) moving radially within cylinder bores (110) via a camplate (3). Cylindrical rollers (140) support piston movement. Bearing surfaces (103) for locating the endfaces of the rollers and two axial mounting point recesses are milled from the cylinder block. The radially extending depth of the bearing surfaces lies above the piston ring when the piston is at top dead centre. The piston ring is mounted as far towards the piston base as possible in order to carry the turning moment.
Patent DE-4006416-A1 (DE)
Title: Signal compression circuit - includes polygon circuit for providing current proportional to difference between input and reference voltage, and clipping circuit
Inventor: SUGIURA HIROAKI
IPC: G06G7/28
Filed: 1990-03-01
Abstract: The polygon circuit for input signal level compression in a signal processing circuit in, for example, a colour television camera uses transistors with resistors (Q5, R2, Q6, R3) providing a first current I4 proportional to the difference between an input signal voltage Vin and a reference voltage Vref, and a circuit (Q8, Q9) for clipping the input signal voltage Vin at a break-point setting voltage Va. Further transistors and resistors (Q14, R6, Q18, R7) provides a second current I4 proportional to the difference between the output voltage of the clipping circuit and the break-point setting voltage Va. Addition or subtraction is performed on the first current I2 and the second current I4 to output a voltage signal Vout proportional to the sum or the difference. @(24pp Dwg.No.3/6)@.
Patent DE-4007100-A1 (DE)
Title: Height-adjustable foot for furniture and machine frames - has screw spindle engaging from above into inner thread of sleeve resting on ground
Inventor: MOECKL ERNST
IPC: A47B91/02
Filed: 1990-03-07
Abstract: The height adjustable foot for flat horizontally aligned rails on machine frames has an adjustment member (30) which passes vertically from top to bottom non-displaceably through the foot rail (12) and can be turned from the top of the foot rail. This adjustment member operates a setting foot (24) which engages from below into the foot rail (12) where it is guided vertically in same and can be set up on a support by its downwardly pointing free end. Two interengaging threaded parts are mounted on the adjustment member (30) on the one side and on the foot rail (12) of setting foot (24) on the other.
Patent DE-4007484-A1 (DE)
Title: Prodn. of co-condensate for use as dispersant e.g. for pigment
Inventor: MAURER WERNER DR
IPC: C09K23/52
Filed: 1990-03-09
Abstract: Cocondensates (I) of ketones of formulae (II) and (III), HCHO and a sulphite salt (IV) are claimed: R1-CO-R2 (II), R3-CO-R4 (III); R1, R2 and R3 independently = (substd.) aliphatic gps. pref. (substd.) 1-4C alkyl, opt. with hetero-atoms or gps., e.g. -O-, or -NH-, in the chain; or CR1R2 = a (substd.) cycloaliphatic gp., pref. a 3-7 membered (substd.) satd.  carbocycle; R4 = a (substd.) aromatic gp., pref.  (substd.) phenyl.
Patent DE-4008298-A1 (DE)
Title: Overshoot indicator for electrical mains network - passes mains voltage signal through fundamental frequency blocking filter for comparison with unfiltered main voltage
Inventor: DEUTSCHMANN NORBERT
IPC: G01R23/165
Filed: 1990-03-15
Abstract: The overhoot indicator contins a filter unit (1) to which the main votage (UN) under investigation is fed and an evaluation unit (3-5). The filter is a band blocking filter tunes to the fundamental frequency of the network. The filter output voltage is compared in the evaluation unit with the unfiltered mains. The amplitude of the overshoot appears at the output of the evaluation unit. An amplifier is arranged between the filter and comparison stage. ADVANTAGE - Can be used by unskilled operators.
Patent DE-4009745-A1 (DE)
Title: Fuel injection pump for Diesel engine - has spring-loaded pistons to ensure rapid build-up of fuel pressure
Inventor: DOMBERGER GERHARD
IPC: F02B3/06
Filed: 1990-03-27
Abstract: The high pressure fuel injection pump for a diesel engine has a piston (3) which can be moved axially and can be rotated in a cylinder (2).  The piston (3) has control edges (4,5) which control the beginning and ending of the fuel delivery phase. An annular suction and return flow chamber (6) is formed between the outer wall of the cylinder (2) and the inner wall of the housing (1). This chamber (6) is connected to the interior of the cylinder (2) by radial holes (7).  The volume of the annular chamber (6) is initially reduced by spring-loaded pistons (12) which project into the chamber (6).  These pistons ensure a rapid build-up of pressure in the chamber to a level which is greater than the vapour pressure of the fuel. USE - Fuel injection pump for diesel engine.
Patent DE-4011761-A1 (DE)
Title: Orbital sander with exchangeable tools - which have backplate with bracket keying into guides on machine drive plate
Inventor: OTT PATRICK
IPC: B24B23/04
Filed: 1990-04-11
Abstract: The head (3) of the orbital sander has a driveplate (44) to which the sanding tool (4), one of a set belonging to the machine, is attached. The sanding tool has a backplate (8) press formed to create a top hat section (11, 12) which can be slid sideways under two guideways similarly press formed in the driveplate (44). In the central position of the tool a spring-loaded half-ball (37) fastened to the backplate snaps into a matching depression in the driveplate. USE/ADVANTAGE - Orbital sanders. Because of versatility fewer machines are required.
Patent DE-4012047-A1 (DE)
Title: One-way surgical swab - is a single layer nonwoven section with plastics loop which can be detected by X=rays
Inventor: DANZ SEBASTIAN
IPC: A61B19/00
Filed: 1990-04-13
Abstract: The disposable swab, for abdominal surgery, has a single-layer non-woven section (1) on the side towards the bleeding area. The loop (2) is of a material which shows on X-rays, using a plastics strip containing barium sulphate. The free ends (3) are welded together with the non-woven section (1) between them. Pref. the non-woven section (1) is bonded together as a material of 80-160 g/m2. The plastics strip is based on PVC with a barium sulphate content of 20-60 wt%. The free ends (3) of the plastics strip are welded together by ultrasonics. The pref. dimensions are a non-woven section (1) of 40 x 40 cm with a 30 cm long loop. ADVANTAGE - The swab is easier and cheaper to make than conventional swabs.
Patent DE-4013830-A1 (DE)
Title: Angle drive with two shafts and two axles - has torque transmitter with at least one angled transmission rod in sections, with holder
Inventor: FETZER GERHARD
IPC: B25J17/02
Filed: 1990-04-30
Abstract: The angle drive has a first shaft (16) turning on a fixed axle, and a second shaft (20) turning on a second fixed axle different from the first. The two shafts (16, 20) are coupled by a torque, transmitter which has at least one angled transmission-rod (36). Sections of rod (32, 34) slope towards each other. For each of the transmission-rods (36) a first axially parallel rod-holder (28) rotates with the first shaft (16) and a second axially parallel rod holder (30) rotates with the second shaft (20).
Patent DE-4018880-A1 (DE)
Title: Method of welding two members
Inventor: SUGIYAMA KENJI
IPC: F01L1/14
Filed: 1990-06-13
Abstract: Method of welding two components together to make a push rod, by forming a tapered annular seat on one component, forming a rose seat comprising radially extending tapered projections on the other component, bringing the two seats into coaxial abutment and projection welding the two components together. Pref., two components used in the mfr. of the push rod are a pipe, which has the annular seat, and a tip which has the seat on the concave or convex underside surface. The tip is made harder than the pipe by hardening the rose seat. A protrusion is formed in the centre of the rose seat.
Patent DE-4030006-A1 (DE)
Title: Portable laser fitted inside support -  has ceramic tube with laser parts independently adjustable to avoid deficiencies due to deviations in carrier tube
Inventor: WEIMEL ERICH
IPC: H01S3/05
Filed: 1990-09-21
Abstract: The laser, consisting of a medium (1) and 2 mirrors (21,22), is fitted inside a ceramic tube (3), pref. silimanith. The feature is that the medium and mirrors are held by adjustable supports (4) which fit also inside the tube. Each mirror is held with 3 supports on its perimeter which are at an angle of 120 deg. to each other, the laser medium is held by a support (4) at each end which features 3 holders at 120 deg. angular distance. The holders all consist of a setscrew (7) which fits inside a blind hole (8) in the part to be supported on one side, and inside a plastic nut (6) which has been pressed into a hole (5) drilled in the ceramic tube wall (3). The laser medium pref. is Ar contained in a tube. The holes, drilled in the ceramic tube wall pref. are placed in the right position and at a right angle to the required length axis of the instrument instead of the actual, usually curved, length axis of the ceramic tube. - The adjustment of the positions of the 3 parts occurs relative to the required length axis, not the actual tube axis. USE/ADVANTAGE - Adjustments allow the tube defects such as curvature and variation of thickness to be ignored in setting up the laser. This allows a ceramic tube to be used to support the laser and results in a much lighter weight. The laser can be operated over a large temp. range because of the low expansion coefft. of the tube. The mirrors are securely supported, resulting in a high resistance to mechanical shocks during use and transport.
Patent DE-4031596-A1 (DE)
Title: Reclining seat for use in omnibus -  incorporates mounting for seat on underframe
Inventor: MUELLER ROLF
IPC: B60N2/24
Filed: 1990-10-05
Abstract: The seats are arranged singly or in pairs in rows in an omnibus. They each have an adjustable back rest and a cross member fixed to an underframe anchored to the vehicle floor. The cross member (6) is placed at the leading edge of the seat (1) to serve as the support point for the backwardly raked seat, and carries two counter bering plates (8, 9) arranged vertically at a distance from each other and symmetrically to the longitudinal axis (10) of the seat. USE/ADVANTAGE - Seat for an omnibus offering adequate leg room and capable of conversion to a position suitable for sleeping.