baber/WOPTO huggingface dataset:
Patent DE-2341174-A1 (DE)
Title: Silencing appts. for forced blower - consists of multiple tube stages each with parallel tubes filling casing cross section longitudinally
IPC: G10K11/16
Filed: 1973-08-14
Abstract: The silencing tubes comprise an outer tube, an inner tube concentrically within the outer tube and leaving an annular space therebetween, and a sound-absorbing material disposed within the annular space. Tubes of adjacent stages abut and communicate in lateral offset relation so that noise-generating gases passing from adjacent stages are continuously divided and subdivided and passed inside and outside of the silencing tube in the second stage. A third stage is displaced from the second stage so that noise of the gas is further modulated and dispersed and passed inside and outside of the silencing tube in the third stage thereby maximizing the area of the sound-absorbing material in contact with the noise-generating gas.
Patent DE-2341922-A1 (DE)
Title: Safety packing for precious stones - with seal enclosing access opening to document inside packing
Inventor: PUETZ ROLF FRIEDRICH
IPC: B65D33/34
Filed: 1973-08-18
Abstract: Safety packing for precious stones includes a packing for enclosing the stones with at least part of it made from transparent material. The packing has an access opening on at least one of its sides which is enclosed by attached document relating to the packed stones. The sides of the opening are provided with eye rivets through which is threaded a cord with its free ends sealed together. The document which is positioned inside the packing is accessible through the opening only when the seal is broken and the sealing cord is removed. The packed stones are placed on a cushion which is attached to the document and the packing consists of two halves which apart from the packing opening are joined together along their edges by two parallel welded seams between which is enclosed a colour strip or a cord consisting of number of threads of different colour.
Patent DE-2344038-A1 (DE)
Title: Open end spinning device - has opening device mounted in the mouth of the spinning rotor
Inventor: BOUHON PIERRE HUBERT MARIE JOS
IPC: D01H4/10
Filed: 1973-08-31
Abstract: The spinning rotor is mounted in a spinning chamber and a rotatable conical hood having a removable needle carrying annulus secured to its outer face is located in the mouth of the spinning rotor. As the hood rotates the needles open, sliver is fed to the device and discrete fibres pass down the outside of the hood onto the fibre collecting surface of the spinning rotor, the spun yarn being drawn off upwardly through a delivery duct passing through the hood. Pref. the fibre collecting surface of the rotor is perforated to allow trash removal. The annulus can be rapidly replaced by one having different needles to allow the spinning device to be used with different fibres.
Patent DE-2350596-A1 (DE)
Title: Infantry projectile with internal stabiliser - has internal inclined channel with additional rolling mass ensuring trimming action
Inventor: KNOCHE HANS-GEORG DR RER NAT
IPC: F42B10/02
Filed: 1973-10-09
Abstract: The infantry projectile is used for ground targets. It is aerodynamically stabilised and has an internal rolling trimming arrangement ensuring a straight trajectory. The projectile is automatically returned into its normal trajectory in case of deviations. The projectile (1) has a centre of gravity (S1) and inclined channel with additional mass (11). The centre of gravity (S) of the projectile is situated on the longitudinal axis (6) and near the projectile nose. The additional mass can be moved into position below this axis. This additional mass is held firmly on launching and is able to move in the inclined channel afterwards.
Patent DE-2350733-A1 (DE)
Title: Pivoting mirror reflex camera - has mirror linked to swivel lever via coupling rod
Inventor: ADAMSKI GUENTER
IPC: G03B19/12
Filed: 1973-10-10
Abstract: The mirror which pivots about a fixed point is linked via a coupling rod to the swivel lever which is by free applied to a pivot point. The drive elements are positioned, so that in the photography position of the mirror, the operating effect of the drive force through the pivot point disappears and all the coupling points lie on a straight line passing through the pivot point. The swivel lever is preferably a two-armed lever, with one arm connected to the coupling rod and the other arm attached to a tensioning spring. A single-arm support arm may be positioned between the mirror and the coupling rod free end of this arm acting with a spring force via a cam.
Patent DE-2350854-A1 (DE)
Title: Integrated, temperature of light sensitive threshold switch - has output transistor whose collector current switches load
Inventor: KELLER HANS DIPL-ING
IPC: H03K17/795
Filed: 1973-10-10
Abstract: There is a temperature or light sensitive stage with transistors which are supplied through collectors of a multiple collector transistor of a conduction type opposite to that of the output transistor. Its emitter is connected for d.c. to the output transistor collector; the multiple collector transistor base is supplied through the collector-emitter path of a switching stage transistor with a current dependent on the current of at least one of its collectors. The switching stage has a control circuit generating a voltage with a positive temperature coefficient, independent from the threshold switch terminal voltage and depending on the difference between base-emitter threshold voltages of two transistors; it controls the base-emitter path of a transistor whose forward voltage is controlled by ambient temperature.
Patent DE-2365381-A1 (DE)
Title: Aliphatic and cyclic perfluoroalkyl ethers - from prim. or sec. alcohols or polyols and hexafluoropropylene or tetrafluoroethylene, followed by electrochemical fluorination
Inventor: BENNINGER SIEGFRIED DIPL CHEM
IPC: C25B3/28
Filed: 1973-02-09
Abstract: Aliphatic and cyclic perfluoroalkyl ethers are prepd. by (A) reacting a mono- or polyalcohol with prim. and/or sec. alcohol gps., of formula (CH2OH)a-R'(OH)b (I) where R' is CnH2n+2-(a+b), where n = 1-10, c = 0-3, a and b = 0-4 and a + b >=1, or HO- (CH2)d-CH2CHR"-O e H (II), where R" is H and d = 0-4 or R" and d = O, and e = 2 or 3, in soln. in an aprotic polar solvent, with hexafluoropropylene in presence of trialkylamines, or with C2F4, at between -30 and +100 degrees C, to yield (CH2OCxF2xH)a (III) or HCxF2x-O- (CH2)d-CH2CHR"-O- eCxF2xH (IV), where x = 2 or 3, and (B) electrolysing III or IV in soln. in anhydrous HF at between -20 degrees C and +30 degrees C and tension 4-7.5 V to yield (CF2OCxF2x+l)a (V) or CxF2x+l-O- (CF2)d-CF2CFR"f-O eCxF2x+l (VI), where R'f is CnF2n+2-(a+b) R"f is F and d = 0-4 or R"f is CF3 and d + O. V and VI have great chemical stability, low dielectric constant, high breakthrough tension, and low loss factor in high frequency alternating fields.
Patent DE-2403727-A1 (DE)
Title: Pulley drive for moped - with freewheel clutch for energy saving for handlebar mounted motor
Inventor: SEYFFER MAX
IPC: B60K1/04
Filed: 1974-01-26
Abstract: The moped, or light motorcycle is driven by a small combustion motor, or a small electric motor powered from a battery. the driver is by a simple belt and pulley to the front or rear wheel which is fitted with a freewheel hub. This enables the motor to be run at an economic speed, with the drive disconnected during braking and downhill travel. The friction in the drive is then reduced so that the power drain on the battery or small engine is substantially reduced. In the case of electric drive the drive is activated by a simple spring loaded lever pulled by the driver.
Patent DE-2411427-A1 (DE)
Title: Security arrangement for bank and cash windows - has one-way mirror between safety glass panels and an electrified protection dome
Inventor: MERTEN ADOLF
IPC: E05G7/00
Filed: 1974-03-09
Abstract: A one way mirror is placed between the two bullet proof glass panels so that the bank employers can see the client but the clients are unable to see the bank officials. This confuses a would be attacker owing to the impersonal arrangement. The clients are approached by officials by refering to their names and hence a more personal approach is preserved. The counter area is protected at the top by a sloping roof which is charged with low voltage electricity. Any contact with this roof will disable the attacker sufficiently for subsequent disarming. The bank officials are able to take any necessary counter measures because they are not in the direct view of the attackers.
Patent DE-2418193-A1 (DE)
Title: Horizontal or vertical swivel door for cupboards - has toothed rods engaging round gear wheels to slide out of sight
Inventor: REPP ARNO
IPC: E06B3/50
Filed: 1974-04-13
Abstract: The swivel door is designed to open with its rear edge parallel to the side wall so that there ae no protruding parts but a clear access to the inside of the cupboard is provided. So that the door can be moved accordingly it is provided on the inside with at least two spaced toothed rods which extend in the direction of movement and are designed to actively engage with gear wheels which are non-rotationally fixed to a shaft mounted at the swivel centre. The door itself is guided above by guide means on the rear lower edge and is designed to supported against the inside of the side wall of the cupboard by strips fitted to the upper an and lower edges. Quadrant curved buides are provided on the upper and lower edges of the cupboard frame concentric with the shaft and are designed to interact with the guide pins mounted on the top and bottom of the door.
Patent DE-2427915-A1 (DE)
Title: Rod bending machine for open structures - produces diagonal connectors for two and three dimensioned beams
Inventor: TUECKS KARL J
IPC: B21F27/20
Filed: 1974-06-10
Abstract: The arrangement is used for bending of continuous diagonal connection members for lightweight open structure beams. The tension member and the compression members are connected by an endless zig-zap shaped member bent from metal rods. The arrangement bends a zig-zag shape bent member which is previously bent in one plane into an open structure member in two plates for lightweight beam. This arrangement can also used for producing three dimensional structure members. The three dimensional arrangement is produced by bending a two dimensional arrangement in a given sequence. The free projecting ends of the elements are bent by a rotated or hydraulic actuator.
Patent DE-2434554-A1 (DE)
Title: PD type control circuit for operational amplifier - has three operational amplifiers with resistor and capacitor feedbacks
Inventor: WIEHL HANS DIPL ING
IPC: G05B11/42
Filed: 1974-07-18
Abstract: The PD-type control circuit is in connection with a feedback resistor (R2). In a typical arrangement, a first operational amplifier (10) is connected with its N input to the feedback resistor and its output through a variable resistor (RV) to the P input of a second operational amplifier (12). The latter has the N-input strapped to the output, which is also connected through a series resistor (R3) to the N-input of a third operational amplifier (14), and through a shunt resistor (R4) to its output. A capacitor feedback (C) links the output of the third operational amplifier with the P-input to the second amplifier.
Patent DE-2438375-A1 (DE)
Title: Spinning machine feed rollers - formed by end flanges between which are fitted parallel spring steel wires
Inventor: LANDWEHRKAMP HANS DIPL ING
IPC: D01H5/74
Filed: 1974-08-09
Abstract: Elastic spun fibre feed rollers are formed by a pair of axially spaced end flanges supported by a shaft and a peripheral array of parallel spring steel wires supported by the flanges. Rollers are wear resistant and free from static charge accumulation. Preferably the wires are juxtaposed closely to each other and they may be axially parallel or extend along a helical path. Wires may be formed in a close meandering flat coil whose ends may be located in annular grooves of the end flanges.
Patent DE-2444120-A1 (DE)
Title: Mixer tap for hot and cold water - has operating lever to produce axial and rotational motion
Inventor: KAUT GUENTER
IPC: F16K11/078
Filed: 1974-09-14
Abstract: A single lever mixer tap for hot and cold water is located inside a common inlet and outlet tube. The lever pivot (18) is located in a fork support (16) which is rigidly attached to the mixer bush (1). A piston inside the mixer bush (1) is attached to the lever (8) by means of a pivot pin (19). To operate the mixer unit, rotational movement of the mixer bush and axial movement of the piston is required. Both motions can be produced by lever (8). Preferably the free end of the support (16) is angled to the guide (17) at right angles to the direction of displacement of the piston.
Patent DE-2446135-A1 (DE)
Title: Composite plates for assembling refrigerated furniture - has stainless steel cover for making cabinets of different sizes
Inventor: DELBROUCK KLAUS
IPC: F25D23/06
Filed: 1974-09-27
Abstract: The components for making of refrigerated furniture of different dimensions used especially in catering industries. The components are made from composite insulation plates. The top plates (2) floor plates and side and end walls are made with certain widths and heights. Standardised floors, drawers and connectors (6) are provided for connecting the plates and for supporting the doors and the drawers. The composite insulation plates have a core (14) made from polyurethane rigid foam enclosed by hard fibre plates and covered with stainless steel sheets. The plates can be cut to required sizes.
Patent DE-2451746-A1 (DE)
Title: Socket sunk into road for holding valve - has housing cylinder with sliding upper part and spacing rings
Inventor: STRECK ERNST
IPC: E03B9/10
Filed: 1974-10-31
Abstract: The arrangement for bringing the top cover of socket sunk into road level with road surface uses spacing rings. These sunk sockets are used for holding gas and water valves in road and pavement surfaces. The cover of this hole has feature for connecting a lifting tool which facilitates access for adjusting purposes, into these sunk sockets. The lower seat accommodates a sliding inner upper cylinder into which can be inserted the lifting tool. The upper part has a overhanging flange which rests on the spacing rings placed on the upper end of the lower seat. Both these sleeves are connected by a clamping screw within the inner cylinder and inner cover is pivoted about a pin for opening.
Patent DE-2452508-A1 (DE)
Title: Refrigerator for motor vehicle air conditioning plant - uses rotary piston compressor and liquid refrigerant mixed with air and lubricant
Inventor: BURGER MANFRED ROLF
IPC: B60H1/32
Filed: 1974-11-05
Abstract: The refrigerator system is used in the air conditioning plant especially for motor vehicle passenger compartments. The refrigerating medium is compressed, condensed, expanded and evaporated. The medium used has low boiling point and the circulation is maintained fully free from air and water and the refrigerant is readily filled into the system in required quantities. This is ensured by using a rotary piston pump for compression purposes. The refrigerant is a mixture of a high boiling point refrigerant, air and lubricating and sealing oil compatible with the refrigerant. The refrigerant is cooled before expansion by the counter flow process using already evaporated refrigerant. In the refrigerator a rotary compressor (10), condenser (12), expansion valve (16), evaporator vessel (18) and a return pipeline to the rotary piston compressor are connected in series.
Patent DE-2454233-A1 (DE)
Title: Variable delay circuit has input sample and hold circuit - and output gate is gated after delay following sampling
Inventor: HEITMANN JUERGEN DIPL ING
IPC: H03H11/26
Filed: 1974-11-15
Abstract: The variable delay circuit consists of a sample and hold circuit (2) --to which the input signal (1) is applied. The sample and hold circuit's output is passed to a gate (7) whose own output passes over an LP filter to the output terminal (9). The sampling pulses (4) are applied directly to the sample and hold circuit via a pulse shaper (3) and over an electrically-controlled phase shifter (5) to the gate. The delay between the sample and hold circuit's sampling pulses and the gate's gating pulses may be introduced by a monostable multivibrator (10). The advantage lies in simplicity.
Patent DE-2506027-A1 (DE)
Title: Pneumatic tyre skid protectors - made of articulated links provided with grippers for automatic adhesion to tyres during rolling over
Inventor: WIRTH MANFRED
IPC: B60C27/14
Filed: 1972-02-13
Abstract: Pneumatic tyre skid protectors are formed by articulated links which are provided with grippers which during rolling of the tyres over the links engage the tyres such that after one revolution the skids are attached to the tyres and interlocked by a detent. Skid protectors can be readily mounted on and dismounted from the tyres and can be used also on flat road surfaces. Used on snow, icy surfaces, clay soils or muddy surfaces.
Patent DE-2511997-A1 (DE)
Title: Clock with pot containing clock mechanism fitted into housing - has clock face support which is resiliently fixed to clock mechanism
Inventor: KRONER KLAUS
IPC: G04B23/02
Filed: 1975-03-19
Abstract: The clock, e.g. a bedside alarm clock, comprises a housing (11) into which a pot (12) containing the clock mechanism (13) is fitted. The clock mechanism (13) is fixed between an upper and lower mounting plate (23, 24), which are fixed to the clock face support (14) by bolts, with the gear wheels for driving the clock hands positioned between the upper monting plate (23) and the clock face support (14). The resilient bolts (50) for fixing the upper and lower mounting plates (23, 24) to the clock face support (14) are pref. formed integrally with the latter.
Patent DE-2513192-A1 (DE)
Title: Logic network with input signal function - has selection in integrated circuit form for telecommunication and other applications
Inventor: ERNST WOLFRAM DIPL ING
IPC: H03K19/173
Filed: 1975-03-25
Abstract: The circuit is a compact version and allows several such circuits to be constructed on the same chip. There are four logic inputs to the circuit, of which three are used for the input signals (E1, E2, E3) which are operated upon and which select the logic function, and the fourth (J) inverts the network output (A) if a signal is present on it. Some sixteen logic functions in all are available, including AND, IN, BIT, EQUIVALENCE, EXCLUSIVE-OR, NOT, OR and so on. The circuit consists of some six logic elements including NAND gates, OR gates and so on. The circuit is also presented in some slightly more developed forms, in which a function selection input pair of signals (P1, P2) is separated from the input signals (V1, V2) to which the selected logic function is to be applied.
Patent DE-2513701-A1 (DE)
Title: Plastic Archimedean screw - partic. for toys assembled from screw flight units with spigot and socket ends on their axial cores
Inventor: BALLEIS PETER
IPC: B29C33/00
Filed: 1975-03-27
Abstract: Plastic Archimedean screw with an integral axial core, partic. for toys, is composed of a number of screw flight sections integral with an axial core portion, pref. tubular, connected in series in the axial direction, the screw flight extending over any desired area up to a max. of 360 degrees and along the whole effective length of the axial core portion. Provides a simple and cheaper method of producing plastic Archimedean screws with integral axial core of any desired length.
Patent DE-2516113-A1 (DE)
Title: Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia
Inventor: SEIFFERT ULRICH DR
IPC: B60N2/22
Filed: 1975-04-12
Abstract: The top edge of the seat back (4) is fitted with a special safety belt (5) whose other end is secured on an inertial reel (6) mounted under the roof of the vehicle. The belt secures the seat back during a collision so that the seat belts do not pull the seat back out of its mountings. The belt support is lighter and more versatile than mechanical bracing and adapts itself to fit the different seat adjustment positions. It can be fitted to existing vehicles without great modifications.
Patent DE-2516673-A1 (DE)
Title: Vehicle brake shoe lining - is thin layer of titanium for shorter stopping distance
Inventor: SCHMITZ RUDOLF WERNER
IPC: F16D69/00
Filed: 1975-04-16
Abstract: The brake linings for brake shoes are made of titanium coated on the shoes. This reduces braking distance, due to the great elasticity and vibration resistance, and only a very thin coating is required. Titanium has a very high melting point: 1465 deg.C., and a specific gravity of 14.8, which is very little more than iron. The molecules of titanium and much more strongly bonded, giving it a much greater tensile strength than iron. The titanium brake lining can withstand very high loads. It wears a groove in the wheel rims, preventing entry of abraded metal particles.
Patent DE-2523857-A1 (DE)
Title: Electronic meter measuring accelerations and decelerations - has ammeter indicating discharge of capacitor in RC circuit fed by DC signal proportional to speed changes
Inventor: KRUITHOFF HENNING ING GRAD
IPC: G01P15/16
Filed: 1975-05-30
Abstract: Change of a d.c. signal proportional to the motor speed changes, in a finite time, the charge of a capacitor in an RC circuit. Time integral of the resulting charge of discharge current is displayed by an ammeter. Its reading is a measure for the instantaneous acceleration. This arrangement for measuring both accelerations and decelerations offers an inexpensible solution in itself but is even cheaper if a voltage generating installation is already available for a speedometer.
Patent DE-2529372-A1 (DE)
Title: Regenerative furnace grate assembled from hollow blocks - permitting easy assembly and safe access and handling
Inventor: HEHEMANN HELMUT
IPC: F28D17/02
Filed: 1975-07-02
Abstract: A preformed block for the grate of a regeneratively heated furnace comprises two hollow cubic elements forming one unit, with vertical gas passages through them, and rectangular cut-outs in their horizontal edges. These cut-outs are symmetrically arranged and align with those of the blocks above or below to form diagonal flow passages. Pref. proportions are length: breadth: height - 2:1:1. Ratio of total to hollow cross-section 25:16. Ratio of cut-out to area 1:12:5. A structure of fitting blocks is obtd. reducing the risk to personnel entering the furnace. Thermal capacity and flow conditions are improved.
Patent DE-2531903-A1 (DE)
Title: Vibration damper for vehicles - has lubricated friction discs alternately connected to sprung and unsprung masses
Inventor: ZENZ WILHELM
IPC: F16F7/04
Filed: 1975-07-17
Abstract: Vibration damper for vehicles has a stack of friction discs (6a, 6b) alternately keyed to a rotor (2) connected to the unsprung mass and to a stator (1) secured to the sprung mass. The stack is enclosed in a housing filled with lubricant. The discs have radial grooves for the lubricant and alternate discs have smooth and porous surfaces. Pref. the grooves are formed by slots cut into the discs from the outer periphery and each ending in an axial hole in the disc. The arrangement suppresses noise and improves the response of the damper to vibrations of low amplitude.
Patent DE-2536652-A1 (DE)
Title: Dual track vehicle chassis - has substructure resting in bogie girder by joints located in vertical plane
Inventor: RIXEN WERNER DR ING
IPC: B62D55/084
Filed: 1975-08-16
Abstract: The substructure (9) rests on the bogie girder (1) by joints. The points are in a vertical plane (12) located in- or near to the centres (8) of balancers (6) on each track (3). The supporting points are joints having three degrees of freedom. The joints are fitted at the ends of arms cantilevered on either side of substructure and connected non-slideably with the bogie girder (1). The arms are arranged at one end of the substructure. At the opposite end of the substructure the third point is fitted on a lateral balancer with a seat for a pivot in a vertical plane coinciding with the centre line of the vehicle.