baber/WOPTO huggingface dataset:
Patent DE-2517901-A1 (DE)
Title: Maintenance free car door hinge - has fluorocarbon polymer coated bearing surface with supplementary grease lubrication
Inventor: BROCKHAUS ERNST
IPC: E05D11/02
Filed: 1975-04-23
Abstract: In a maintenance-free hinge support, particularly for a highly loaded hinges for hangin motor vehicle doors in which two hinge halves are pivotably connected together by means of a massive cylindrical hinge rod traversing hinge eyes of both hinge halves and provided with a bearing surface at least in the hinge eyes of one half, the bearing surface being formed by a metal-plastic combination material, the hinge rod is provided with a surface coating of a fluorocarbon resin and an additional lubricant coating. The contrast to known designs of maintenance-free hinge bearings, the use of bearing bushes as well as the costly machining of these and the troublesome fitting the bushes into the hinge eyes, is eliminated. Additional lubricant, particularly a grease can also be used to extend the length of life of the maintenance-free hinge bearing.
Patent DE-2518214-A1 (DE)
Title: Electro-mechanical ratchet actuation - uses piezoelectric element for minimal energy, size and weight characteristics
Inventor: KLOZ EDUARD
IPC: G06M1/10
Filed: 1975-04-24
Abstract: A method of actuating ratchet mechanisms, partic. for stepping on the ratchet wheels of mechanical calculators, uses a partly clamped (18) flexible ceramic piezoelectric element, to which a variable voltage is applied. The method ensures minimal energy requirement, small size and low weight of the actuator, which is formed of two layers of oppositely polarised piezoelectric material (10) strengthened by a flexible metal strip (12) between them. A d.c. voltage is applied to the outer surfaces of the two piezoelectric strips (10). Alternative constructions use two piezoelectric ceramic plates of opposite polarisation glued to a sprung metal strip, or multiformed rods fixed to a metal strip. The free end of the element engages the ratchet mechanism (34, 32).
Patent DE-2520321-A1 (DE)
Title: Tyre with emergency inner tube at higher pressure - having a small dia. which expands to full dia. when tyre is punctured
Inventor: PAKUR HENRYK
IPC: B60C17/02
Filed: 1975-05-07
Abstract: A pneumatic tyre has an internal emergency running tube which is inflated to a higher pressure than the tyre, rests on the wheel rim and, under normal running, has a smaller overall dia. than the tyre so that it does not touch it and the zenith. The reinforcement (tyre cord) in the emergency tube is oblique to the circumference so that the tube can expand radially until it reaches the inner dia. of the tyre.
Patent DE-2529852-A1 (DE)
Title: Soldering tab for potentiometer - has spike biting into layer to reduce junction resistance
Inventor: TESSENDORF GUENTER ING GRAD
IPC: H01R4/26
Filed: 1975-07-04
Abstract: A soldering tab for a potentiometer has a finger which bites into the resistive layer to reduce the junction resistance. The finger consists of a broad part (6) that contact acts the resistance layer (3), and a narrow part (4) that projects beyond the insulating support plate (1) to act as external connection point. A spike (7) at the end of the elastic broard part bites into the resistance layer. The force for this biting is obtained by using a rivert (5) to hold the broad part to the support plate.
Patent DE-2532022-A1 (DE)
Title: Chlorine and magnesium oxide prepn. - by reacting partly hydrated magnesium chloride with gas stream having high oxygen content
Inventor: EPSTEIN JOSEPH A
IPC: C01F5/10
Filed: 1975-07-17
Abstract: Chlorine and magnesium oxide are prepd. by reacting partly hydrated magnesium chloride (I) with a water content up to 16 esp. 2-10 wt.%, at 500-700, esp. 550-650 degrees C, with a gas tream having an oxygen content of at least 20, esp. 90%, to form a gaseous prod. contg. chlorine and hydrogen chloride, and a solid prod. consisting essentially of magnesium oxide. Requires no catalyst. Readily available raw materials. Low energy requirement. Acceptable prod. yields.
Patent DE-2534230-A1 (DE)
Title: Sulphur and dicyclopentadiene binder for concrete - prepd. by controlling reaction time in function of reaction temp.
Inventor: LEUTNER BERND DIPL CHEM DR
IPC: C08G75/14
Filed: 1975-07-31
Abstract: Use of sulphur concrete for prodn. and lining of salt-, acid-alkali- and solvent-resistant pipes and containers in claimed. The S concrete is obtd. by mixing molten S and dicyclopentadiene as binder with aggregates at 120-160 degrees C. The time for which S and dicyclopentadiene act on one another at the selected temp. is set according to a specific area on a graph of time against temp. S concrete obtd. has improved resistance to chemicals and solvents. e.g. total wear on exposure to (1) 0.1 mol/l NaOH, (2) 6.1 mol/l NaOH was (1) 0.01 mm/year, (2) 2.77 mm/year when using S concrete (I) contg. 22 wt % binder consisting of 95/5 S/dicyclopentadiene. A standard S concrete control sample, (II) contg. 24 wt % S binder dissolved in 3-4 days when exposed to 6.1 mol/l NaOH. S concrete prodn. may take place in 2 steps, and allows mixing binder components in one place, storage and transport, before adding aggregates, opt. at a different temp. In an example, 95 pbw S were mixed with 5 pbw liquid dicyclopentadiene at 135 degrees C and left 135 min. at this temp. Liquid binder was poured onto 354.5 pbw hot sand and mixed 15 min.
Patent DE-2539458-A1 (DE)
Title: Overflow centrifuge to separate aggregate from extract - in asphalt mixtures having inner bowl mounted in rotating cup
Inventor: FOCHLER HORST JOSEF
IPC: B04B1/02
Filed: 1975-09-04
Abstract: Overflow centrifuge for separating solvent from solid liquid mixtures consists of a holder mounted on a vertical shaft with a means of supporting a bowl. Into this an inlet dips. It is surrounded by an overflow shell around its upper edge. The holder is mounted vertically above its drive and runs inside a chamber sealed from the outside. The overflow shell has a sealed cover and is sealed onto the shaft by means of a flange which contacts a seal ring on the upper edge of the chamber wall. The chamber consists of a cylindrical pot mounted inside the housing. Above this is a ring section, an extension of which forms the seal with the flange on the rotating holder flange. Used esp. in the analysis of bituminous aggregates for road making. These consist of a mixture of limestone chip with some fine powder in bitumen. The centrifuge gives high speeds and thus high throughputs without the problem of dispersion of solvent vapour.
Patent DE-2539483-A1 (DE)
Title: Channel valve with sealed slider boring - has slide bar with layers of corrosion-resistant zinc at either end
Inventor: BRAKEL KORNELIUS
IPC: F16K27/04
Filed: 1975-09-05
Abstract: The channel valve (10) has a slider boring (11). The housing (13) also contains several chambers (12) connected together. The boring (11) tightly holds a slide bar (14), sealed, yet free to slide along. Two annular tee-slots (15, 16) divide the valve up into a first end section (17), a middle, piston section (18) and a seond end suction (19), all piston-shaped and having the same outer diameter. The first section (17) projects but of the housing (13) and is sealed by an O-ring (21). This section (17) includes two sectors having a corrosion resistant layer of zink (23.24). The second section (19) has a sector (26) also with a protective layer of zink. A seal O-ring (28) is provided at this end.
Patent DE-2539600-A1 (DE)
Title: Power semiconductor control circuit - has high ohmic control voltage source and matched pair of bipolar transistors across powder semiconductor gate
Inventor: DUGGE KARL-WILHELM DIPL ING
IPC: H02M5/257
Filed: 1975-09-05
Abstract: Control circuit for driving a power semiconductor, such as a Triac, thyristor or power transistor standing in series with a load using an a.c. voltage source supply is described. The control voltage source is highly ohmic and is of the same frequency, or of a higher frequency than, the supply a.c. voltage. Two matched transistors are specif. used to amplify the drive or control current and are connected across the gate or trigger electrode of the power semiconductor. The matched pair of bipolar transistors can be replaced by unipolar (field effect) transistors. When the operating plate (B) is not in use the transistors (T1, T2) are blocked. The diodes (D1, D2) prevent any base current flowing to a transistor via the collector-base-diode of the other transistor.
Patent DE-2555713-A1 (DE)
Title: Metal rod length measurement - uses large dia. measuring wheel against which rod is pressed by two small wheels in tandem
Inventor: FASHOLZ HANNS
IPC: G01B5/04
Filed: 1975-12-11
Abstract: The apparatus is used for measuring the length of a continuously moving strip of material. It may be used on a machine which cuts off required lengths of steel rod for concrete reinforcement. The apparatus has a measurement roller and two opposed pressure rollers in tandem which force the rod against the pressure roller. Both rollers are mounted on swinging arms so that they can move at right angles to the metal rod. The arrangement of rollers can give an extended arc of contact between the rod and measuring roller, which is of comparatively large size. Electrical impulses are generated as the measuring roller turns.
Patent DE-2601166-A1 (DE)
Title: Central heating system efficiency booster - has combustion air feed channel closed when burner stops with magnetically controlled air flap
Inventor: HEEGE RUDOLF ING GRAD
IPC: F24H9/20
Filed: 1976-01-14
Abstract: The efficiency booster is for oil or gas burners in a central heating system. When the burner is inoperative, the air channel (3) serving to bring in the combustion air is closed, only opening automatically when the burner starts. The air channel is closed by an electromagnetically (5) operated air flap (7). It is also possible to employ a hydraulically operated air flap which responds to pressure build-up between the oil pump and burner jet. The air flap can be held closed under its own weight while the burner remains inoperative so as to open under the effect of blower suction or delivery when the burner re-starts.
Patent DE-2608550-A1 (DE)
Title: Automatic surface treatment of workpieces - in row of tanks covered by travelling lids which prevent escape of fumes
IPC: C25D17/28
Filed: 1976-03-02
Abstract: Plant for the chemical or electrochemical treatment in aq. solns. of workpieces made of metals or synthetic materials, includes a row of tanks below an automatic conveyor moving a workpiece carrier horizontally and vertically. The conveyor consists of a set of rails guiding driven trolleys fitted with a hoist surrounded by a cowl; and the buttom of the cowl is fixed to two flexible lids which cover the row of tanks. When the trolley moves along the row of tanks, the cowl and the lids level with the trolley, forming a totally enclosed system fitted with fume extn. plant so fumes do not enter the atmos. The hoist is used to raise and lower a perforated drum which contains the workpieces and is rotated while in the aq. liqs. in the tanks. Used for pickling, bright pickling, oxidn., phosphate coating, electroplating, or metallising.
Patent DE-2610265-A1 (DE)
Title: Two part extensible sliding ladder - has spring action locking pin below next rung on lower part
Inventor: ZEYHER ROLF
IPC: E06C7/06
Filed: 1976-03-11
Abstract: The collapsible sliding ladder is one in which the top part can be moved along lengthways relative to the bottom part, and hung into the bottom part rungs by hooks, or similar catches at its bottom end. It prevents unintentional displacement after hooking in, esp. when the open ends of the top part are hung in the branches of a tree. There is at least one safety element (12) mounted on the top ladder part (4), engaging below the adjacent rung (3) on the bottom part (1). This is pref. in the form of a lengthways displaceable locking pin, held under spring (15) action and withdrawable into a rest position releasing the adjacent bottom section rung.
Patent DE-2613857-A1 (DE)
Title: Punched tape perforator with interchangeable block - uses plastics retaining bar for holding punch pins for realignment after changing
Inventor: MUELLER WOLFGANG
IPC: G06K1/02
Filed: 1976-03-31
Abstract: The punched tape perforator with interchangeable punch block uses a special attachment for aligning the punch pins when reassembling a replacement block. A plastics spring clip (7) and locking bar is pushed onto the frame of the punch block (2) so that the locking bar slots engage with the cut-outs (10) in the drive ends of the punch pins (5). When the drive coupling rocker arms (11) are operated, their heads are still able to register with the pin cut-outs since they are able to force the flexible lugs on the locking bar out of the grooves. The locking bar clip may be removed and re-used on another punch block.
Patent DE-2615003-A1 (DE)
Title: Pickling process for meat and ham - using vacuum instead of compression to impregnate the goods with brine
IPC: A23B4/28
Filed: 1976-04-07
Abstract: Meat, esp. ham is pickled by immersing it in brine in a sealed container which is put under vacuum and agitated. Before being submerged in the brine, the meat may be surface perforated by a tenderiser, and after the pickling process is completed, the meat is further subjected to a massaging process by being continuously rolled over and over. Pickling under vacuum improves the prod. since the meat sucks up the brine gently into its last cells and retains it. The cutting surface is consequently dryer and is very suited to vacuum packing. The process speeds up the operation since the agitation ensures that all the surfaces of the cuts are exposed to the action.
Patent DE-2621068-A1 (DE)
Title: Difference monitoring between input values - uses simple circuit producing alarm when difference between max. and min. detector outputs exceeds threshold value
Inventor: BORCHERS DIETRICH ING GRAD
IPC: G01R19/10
Filed: 1976-05-12
Abstract: The equipment for monitoring the difference of at least three input quantities with difference elements connected to boundary value signal generators, in partic. for monitoring press. differences, is design d to produce an alarm signal when a difference exceeds a defined level using few component parts in an economical unit. The three inputs are input to a max. value detector and a min. value detector. The difference between the two detector outputs is obtained from a subtractor stage whose output is connected to a single level detector.
Patent DE-2621699-A1 (DE)
Title: Chest type furniture unit with lift-up table top - has electrically driven, telescopically extending supports for corners of top plate
Inventor: ROOST JOACHIM
IPC: A47B83/04
Filed: 1976-05-15
Abstract: The chest-type piece of furniture is of basically square design. An upper top plate acts as a table top which is fastened at at least three corners to telescopic supports which can be extended by a spindle drive. The spindles are rotated by means of a common electric drive motor. Three spindles are pref. mounted in three corners of the base plate whilst the supports are attached to the table top plate at the three corresponding corners where they are provided at their lower end with nuts engaging in the spindles. The fourth corner remains free, so that access to the articles stored inside the chest is facilitated as the plate lifts up. The drive motor can be stored at the bottom in the free corner.
Patent DE-2624482-A1 (DE)
Title: Removal of unwanted components from exhaust gases - using moving beds of activated carbon in several levels
Inventor: NOACK ROLF DR ING
IPC: B01D53/08
Filed: 1976-06-01
Abstract: Unwanted gaseous components of exhaust gas streams are removed by adsorption on a particulate mobile adsorbent e.g. activated carbon or coke. The exhaust gas flows upwards through the beds being then discharged into a chimney and thence into the atmosphere. Several moving beds are arranged one above the other. They are coupled in parallel and the adsorbent flows countercurrent to the passage of the gas. The beds are ring shaped and are mounted inside the chimney, surrounding it. Down the central axis is a rotatable device to feed and ensure uniformity in the beds. The plates forming the parallel connection of the beds are inclined and thus form an expanding passage for gas leaving the bed below. Used for removing undesirable components such as SOi from the flue gases from power stations. Whilst absorption is known, fixed beds have the problems with SO2 that auto ignition becomes a possibility because of the exothermic reaction. The system described permits uniform loading of the bed and permits a more compact system for a given gas flow.
Patent DE-2628525-A1 (DE)
Title: Tensioner for strings of musical instrument - with pegs for tensioning strings having two holes corresp. to two string group planes
Inventor: HAENISCH CARL DIPL ING
IPC: G10D3/14
Filed: 1976-06-24
Abstract: The musical instrument has several groups of strings, with strings tensioned by pegs. Strings of each group lie in a horizontal plane, at least two of which are provided. Each peg has a stem with a hole for the string end, a head for a spanner and a cylindrical shaft inserted with a press fit into holes in a wrest bar of the instrument. The peg shaft (12a) has a second hole (15) at a distance (A) from the first (14), which at least corresponds to the distance (B) between the two planes.
Patent DE-2630172-A1 (DE)
Title: Bistable relaxation oscillator circuit - is controlled by normally open contact shunting series connected relay coil and capacitor
Inventor: TUTERT HERMANUS LAMBERTUS
IPC: H01H47/22
Filed: 1976-07-05
Abstract: The bistable and voltage-independent relaxation oscillator circuit with a polarized relay is used for switching over the ink ribbon of teletypewriters, the circuit simplifies the system, and when the supply fails, it stores the bistable state. Closure of the control contact shortens the series circuit of the coil in the polarised relay and the capacitor, so that the change-over prevents the influence of other components upon the process. The dimensioning of the design is simplified allowing optimum selection to be implemented, while the application of high-ohmage resistors reduces the current intake of the circuit. In addition, the value of the capacitance can be low and this contributes to a smaller size unit, while operational voltage changes can be readily tolerated.
Patent DE-2635771-A1 (DE)
Title: Reel for vehicle safety belt - has auxiliary leaf spring stored on separate roller to wind onto belt reel together with belt to balance force
Inventor: MOSER WERNER ING GRAD
IPC: B60R22/44
Filed: 1976-08-09
Abstract: The reel automatically winds on a vehicle safety belt (1). The winding roller (4), inside the reel casing, is spring loaded, the belt passing under a guide roller (11). A separate roller (8) is fitted inside the reel casing, storing a flexible leaf spring (2) around it. As the belt is wound on, this auxiliary spring winds on with it, forming a common coil (6) with the belt. The spring winds on against its natural curvature and, when the belt is pulled out for use, the force required is balanced. The free end of the leaf spring contacts a guide (8') and winds back onto its roller.
Patent DE-2642720-A1 (DE)
Title: Switch for pneumatic control element - has pressure source limited by dual seal mounted at ends of joining sleeve
Inventor: SCHAFFELD HANS-JOACHIM
IPC: F15C3/02
Filed: 1976-09-23
Abstract: The switch is for the disconnection of a pneumatic control element to a pressure source. It has a housing with a ventilation aperture, two connections and a plunger, displaceable against a spring in the housing. The plunger has an elastic closure, and in a first position, connects the control element connection and the ventilation aperture, and disconnects it from the pressure source connection. In a second position, both connections are made and disconnected from the ventilation aperture. The apertures (5, 6) of the two connections (7, 8) are located in two cross sectional planes (9, 10), extending at a relative distance in longitudinal housing direction. The closure (13) has two sealing elements (15, 16), the active distance of which is larger than that of the cross sectional planes. The sealing elements are integrally connected via a bridge (17).
Patent DE-2646646-A1 (DE)
Title: Trolley for lifting and placing manhole cover plates - has transverse member with wheels and feet supporting cover weight
Inventor: BECK ERHARD
IPC: B66F19/00
Filed: 1976-10-15
Abstract: The lifting trolley is used for lifting and placing canal covers. The wheeled support frame carries a lifting bar and a lifting tool for engaging the cover. The stand has support feet (2) near its wheels (22) which are arranged on the opposite side of the support feet, away from the lifting mechanism. The wheel are lifted off the ground when the cover plate is situated in its mounting frame, and when the grab hooks (7) are in contact with the cover plate. The support feet are arranged at the ends of the connecting transverse member (1). The wheels are connected by their arms to this transverse member.
Patent DE-2705490-A1 (DE)
Title: Spray regulator head securing device - uses elastic material with integral grip and slot extending to holes to close around clamping inserts
IPC: B25B13/50
Filed: 1977-02-10
Abstract: The device secures and releases spray regulator heads, having a top and bottom cylindrical blind hole, each with two spanner faces, and with different internal dias. corresponding to the different external ones of heads of different thicknesses. It is of elastic material, pref. tough plastic, and both holes are situated co-axially in a head section (3) and joined to each other by a cylindrical aperture. Integral with the head section is a grip (2), with a slot (4) in it extending into the aperture and the two holes and in their axial plane. The aperture accommodates a split clamping insert pref. of plastic, whose internal dia. corresponds to the external one of a medium-thickness head, the gap in the insert being in line with the slot. The grip has a cylindrical aperture (12) with axial teeth, divided into halves by the slot, and whose dia. corresponds to the external dia. of a head with external teeth.
Patent DE-2707029-A1 (DE)
Title: Sterilisation of bottles etc. in sulphuric acid soln. - with liquid sulphur di:oxide feed into closed circuit to avoid gas escape
Inventor: HEESS KARL DAVID HEINRICH
IPC: A61L2/18
Filed: 1977-02-18
Abstract: Vessels, containers, bottles etc. are sterilised using sulphuric acid soln. produced by introducing liquid sulphur dioxide into water to obtain the necessary conc. The washing liquid is removed from and circulated back to the wash tank through a circuit into which the liquid sulphur dioxide is introduced into the return line into the tank. Used for sterilising drinks bottles, food containers etc. The desired concentration can be easily achieved and maintained in the bath without the risk of escape of sulphur dioxide in gaseous form, and explosion risk.
Patent DE-2709107-A1 (DE)
Title: Surface finish of semiconductor by HF - having substrate biased relative to earth at fraction of source potential
Inventor: DEPPE HANS-RAIMUND DIPL PHYS D
IPC: H01L21/316
Filed: 1977-03-02
Abstract: A semiconductor device is manufactured so that any microscopic coarseness on the surface of the substrate is smoothed out by a h.f. process. This applies to MOS components and integrated circuits where the substrate consists of several polycrystalline layers. The material is removed from the surface of the substrate by bombarding from a h.f. source. The substrate is biased relative to earth potential at a level of between one tenth and one third of the voltage of the h.f. source relative to earth. The material separated from the surface is of even thickness. The target material used is silicon and the smoothing process is effected in an argon atmosphere at a very low vacuum pressure.