baber/WOPTO huggingface dataset:
Patent DE-2644332-A1 (DE)
Title: Pressure contact for thyristor chips gate electrode - has cup spring pressing contact pad down onto gate and inside ceramic cylinder
Inventor: GERSTENKOEPER HEINRICH
IPC: H01L23/051
Filed: 1976-10-01
Abstract: The pressure contact, for a thyristor chip's gate electrode, consists of a main contact (3) on the surface of the chip and a second contact (45) pressed onto the gate electrode (13). The second contact is located in a hole in the main contact and is pressed down by a cup-spring (42) acting between it and the underside of a ceramic cylinder (41) that slides into the hole in the main contact. The conductor (41) leading to the gate contact passes through a vertical slit in the side of the ceramic cylinder.
Patent DE-2644410-A1 (DE)
Title: Coal hydrogenation solids separation - by filtration promoted by admixture of recycled naphtha
Inventor: WUERFEL HELMUT DIPL ING DR ING
IPC: C10G1/04
Filed: 1976-10-01
Abstract: The heavy prod. fraction in a coal hydrogenation process is mixed with a liquid hydrocarbon fraction before it is freed from the prod. components with a lower boiling point, and this hydrocarbon fraction is sepd. from the solid-free phase after the solids have been removed. The pref. admixture is a benzine fraction, naphtha contg. aromatic cpds. and with a boiling range from 40-200 degrees C. This is a simple and economic means of separating the solids from the heavy prod. fraction. The benzine fraction can be easily recovered after the filtration by simple expansive evaporation.
Patent DE-2645566-A1 (DE)
Title: Ferromagnetic core with channels or recesses - with conductors produced in channels and recesses by electrolytic deposition of conducting material
Inventor: WLAEW ANDREJ DIPL ING
IPC: H01F41/02
Filed: 1976-10-08
Abstract: In the transformer core design the channels and recesses which hold conducting material applied later, are made during the core production. They are electrolytically covered to a thickness necessary to produce the required conductor. Then the core is automatically ground on all sides, until the conducting material thickness in the channels has the required thickness. Windings so produced end in recesses where the conducting material forms blobs to which terminals can be easily soldered.
Patent DE-2658150-A1 (DE)
Title: Juicy fruit freezing bag - has perforated bottom allowing juice outflow on thawing and enclosed by impermeable covering welded in place to form seal
Inventor: SCHULTE GEB MENSCH ERIKA DIPL
IPC: A23B7/04
Filed: 1976-12-22
Abstract: The freezing bag is for storing juicy fruit in deep-freezers, and has a perforated bottom part, through which the juice can flow out after thawing, the fruit itself being held back. Tear-resistant slots can be formed in the top part of the bag, to enable it to be hung up. The perforated portion can be enclosed by an impermeable protective covering, welded to the bag at the top. The design allows easy separation of the juice from the fruit, particularly berries, pineapples and rhubarb, without losing it.
Patent DE-2712754-A1 (DE)
Title: Trigger released novelty toy - contains vessel ejected by trigger released spring underneath to discharge contents onto table
Inventor: WILD JOHANN
IPC: A63H37/00
Filed: 1977-03-23
Abstract: The novelty device or surprise bomb, consists of a container intended to be placed on a table and to suddenly discharge its contents. An outer tube (1) supported on a base (8) contains a beaker shaped vessel (3), and is fitted with a cap (2). Underneath the vessel, mounted around a spigot on the base is a spring (7) which ejects the vessel. Between the spring and the vessel is a circular disc (4) forming the flanged top of a tube (6) which passes through the spigot into the hollow base. This tube has a notch in the side to receive the nose of a trigger (10), so that when the spring is compressed it can be released by pushing down the other end of the trigger.
Patent DE-2717608-A1 (DE)
Title: Intestine closing plug with implanted permanent magnet - has envelope made of material which expands under influence of moisture and heat
Inventor: WILLITAL GUENTER DR MED HABIL
IPC: A61F2/00
Filed: 1977-04-20
Abstract: The envelope of the plug is made of a material which expands after it is inserted into the intestine. This envelope is pref. made from pressed cellulose. The material can expand due to moisture or heat. Ends of the plug have material which expands more than the material at plug midlength. The plug expanding envelope can be split diametrically and also at midlength. In this case the plug is enclosed by a covering sock. The magnetic plug is embedded in the centre of the plug.
Patent DE-2718431-A1 (DE)
Title: Phosphor regeneration in aq. suspension by wet chemical process - with addn. of complexing agent keeping heavy metal ion in soln.
Inventor: BOLZ BRUNO
IPC: C09K11/01
Filed: 1977-04-26
Abstract: In the regeneration of phosphors in aq. suspension by a wet chemical process, the suspension is treated with complexing agent keeping heavy metal ion (esp. Fe) in soln., e.g. triethanolamine. It is pref. to use a complexing agent which solubilises heavy metal hydroxides, pref. in conjunction with peroxide(s), e.g. H2O2, persulphate, percarbonate or perborate. The process is specified of the regeneration of phosphors, esp. sulphide phosphores, e.g. ZnS and (ZnCd)S phosphors for colour TV screens; and of rare earth (oxide oxysulphide and vanadate) phosphors. Crystallisation of heavy metal ions on the surface of the phosphor particles and hence redn. of the activity of the phosphor during the regeneration process is avoided.
Patent DE-2719071-A1 (DE)
Title: Electric machine core slot winding wedges fixture - uses locking fittings embracing toothed wedges at point of slot intersections with machine ventilation ducts
Inventor: LESOCHIN ALBERT ZINOVIEVITSCH
IPC: H02K3/487
Filed: 1977-04-29
Abstract: A unit is used for fixing electric machine core winding slot wedges. The slots are arranged around the periphery of the magnetic core of the machine having radial ventilation ducts. The unit is designed to prevent axial displacement of shifting of the wedges in the slots, and to eliminate the possibility of the wedges slipping out of the slots during operation of the machine, as a result of electrical and mechanical forces. Each fixing wedge has teeth on the surfaces parallel to the base or floor of the longitudinal slots and the teeth form surfaces that run obliquely and vertically to the magnetic core axis. Locking fittings are provided around the wedge teeth at the point of intersection of the long longitudinal slots with the ventilation ducts, and match the shape of the fixing wedge(s).
Patent DE-2719464-A1 (DE)
Title: High frequency bipolar silicon transistor - in which base zone is a mixed crystal of silicon and germanium formed by epitaxy
Inventor: KASPER ERICH DR
IPC: H01L21/203
Filed: 1977-04-30
Abstract: The emitter and collector zones (sic) consists of monocrystalline Si-Ge mixed crystal. Starting from a monocrystalline Si crystal, ultrahigh vacuum epitaxy is used for the vapour deposition of a monocrystalline n/p-layer of Si with low doping (1016/cm3) and 1 mu m thick. This layer is followed by a layer of monocrystalline p/n-Si-Ge mixed crystal with doping 1017 to 1019/cm3 and thickness (D3) is not >0.2 mu m; and contg. 10-2DS of GE (where D3 is the value in mu m). This layer is followed by a monocrystalline n/p-Si layer, 0.2-1 mu m thick; and the layers are grown at 850 degrees C. The Si crystal is pref. n+/p+ material. To mfr. the base connection of npn/pnp transistors, a p/n zone is pref. diffused through the top layer to the next layer; alternatively the zone can be obtd. by ion implantation. To mfr. monolithic integrated circuits, a buried layer with n+ doping is pref. formed in a p-type substrate before growing the layers. The process is used to mfr. bipolar transistors, esp. broad band emitter transistors which can operated at >10 GHz.
Patent DE-2722934-A1 (DE)
Title: Continuous hot rolling mill for small steel sections - with two finishing trains used alternately
Inventor: PETEREIT LOTHAR
IPC: B21B1/16
Filed: 1977-05-20
Abstract: A rolling mill mfg. bars etc. with a small cross-section has the roughing train followed by an intermediate train (A) and then two finishing trains (B, C) used alternately. Each train (B, C) employs a row of horizontal and vertical stands located alternately in the row to prevent twisting of the rolled prods. Each stand has floating rolls, i.e. with bearings at only one end of each roll, and its own drive unit. Alternatively, the stands in trains (B, C) may have common drive units, esp. using one motor with two coupling for driving one stand alternatively in each train. Train (A) is pref. followed by swivel points directing a workpiece to either train (B, C) or directly to a cooling bed. One train (B or C) can be used for rolling while the rolls in the other train are changed; and the cost of the finishing trains (B, C) is reduced.
Patent DE-2725631-A1 (DE)
Title: Film spool obviating rewind - pays out at diagonal axis from centre into projector transport mechanism
Inventor: FETCHENHEUER LOTHAR
IPC: G03B21/32
Filed: 1977-06-07
Abstract: A film spool holds the film on a diagonal axis so that film can be fed directly from the centre of the spool through the projector film transport system. No rewinding of the film is then necessary for subsequent projection. The feed spindle (1a) of the projector is fitted with an adaptor and spool so that the film sits at an inclined angle (3a, 3b) and the film (3c) feeds directly from the spool centre to the projection lens (1b).
Patent DE-2730432-A1 (DE)
Title: Double column eccentric press - has two matched die sections on side of press head and on workpiece table
IPC: B21D22/02
Filed: 1977-07-06
Abstract: The double column eccentric press is for stamping and flanging a holed plate for the manufacture of single and double sprockets for tractors. A fixed table is arranged opposite a reciprocating press head. On the side of the press head facing the table, there is a first die section and on the table surface there is a second die section, where outer face matches the inner face of the first die section. The first die section (3) has flanging rams (9) which can be moved out of the section and fixed in position. The second die section (4) has a cut-out (11) for each ram (9) and to accept an end piece of the corresponding ram (9). A ram-operating device is provided on the first die section (3).
Patent DE-2730679-A1 (DE)
Title: Illuminated mirror system for sales display case - has narrow viewing opening with partially light permeable mirror behind
Inventor: SCHNEIDER KLAUS M R
IPC: A47F11/04
Filed: 1977-07-07
Abstract: At least two mirrors are mounted inside a showcase. One (3') has a partially light-permeable mirror film with the viewing opening (11) behind it so that the image can be clearly seen, the back of the partially light-permeable mirror can be darkened by a screen (12) which screens off the harmful side light. This screen can be in the form of a viewing funnel with the viewing opening on the narrowest side. The opening is preferably large enough for a viewer to comfortably look through with both eyes. A sealing edge against which the eyes rest, cuts out any foreign light. A controllable light source (9) is preferably mounted above the mirror so as to adjust the illumination of the viewed object.
Patent DE-2732893-A1 (DE)
Title: Traction control for vehicle - has toothed profiled drive belts mounted around wheels and driven by gear from engine
Inventor: GRAMATZKY PAUL A
IPC: B62D55/08
Filed: 1977-07-21
Abstract: The traction control has the pneumatic tyres enclosed by flexible drive belts (20) with toothed profiles. A toothed drive wheel (16) transfers the engine torque directly to the belts so that maximum traction is assured even when the tyres are distorted by road irregularities. The toothed profile can be on either side of the belt, or in the case a belt over twin wheels, can be in the middle of the belt. The belts can also be looped over the tyres and the toothed drive wheel.
Patent DE-2733165-A1 (DE)
Title: Luggage cover for estate car - consists of flexible cover sheet wound roller behind rear seats
Inventor: RAKOW JOERG
IPC: B60P7/04
Filed: 1977-07-22
Abstract: The luggage space of the estate type of car is fitted with a roller (15) behind the rear seat, on which is wound a flexible cover (10). This is stretched over the luggage and secured on clips at the rear sides of the vehicle. The cover runs under the bottom edge of the rear windows (14) and does not obscure the view. The leading edge of the cover is fitted to a batten for simple clipping to the sidewalls. At the rear of the luggage space the cover can clip over special fittings to allow the end to act as a vertical curtain (36).
Patent DE-2733522-A1 (DE)
Title: Workpiece tongs, esp. for forging manipulators - where tong jaws twist open and release workpiece if an overload occurs
Inventor: SCHROEDER HORST
IPC: B21J13/10
Filed: 1977-07-25
Abstract: Tongs, esp. forging tongs held by a manipulator. The tongs have a pair of pivot levers (a, b) each fitted with a clamping cheek (c, d); each of the cheeks is mounted on a pivot bolt so they can twist and open when an overload occurs while the levers (a, b) are in the clamping or closed position. The two pivot bolts are pref. located at an angle w.r.t. the longitudinal axis (1) of the tongs; and each cheek (c, d) pref. fits in a recess in its lever (a, b), the recess contg. two spring-loaded locking pegs which are forced out of the cheecks (c, d) when an overload occurs. The levers (a, b) are pref operated by a work cylinder. Used e.g. in drop forging where the workpiece sometimes sticks to the upper die; when this occurs, the workpiece can be removed from the tongs even when the latter are in their closed or clamping position without damaging or breaking the tongs.
Patent DE-2735689-A1 (DE)
Title: Using Streptococcus diacetilactis mutant - used to inhibit cheese-spoiling bacteria and give di:acetyl taste and aroma with less acid
Inventor: VEDAMUTHU EBENEZER RAJKUMAR
IPC: A23C19/06
Filed: 1977-08-08
Abstract: Foodstuff (I) is produced by mixing with Streptococcus diacetilactis (II). (II) used is NRRL-8177 (a mutant of (II) 18-16T) which is first mixed with a nutrient before being added to (I) in an amt. sufficient to act prophylactically against (I)-spoiling bacteria. (I) is esp. cream curds, soft (i.e. (creamed) cottage cheese) or fresh cheese. (II) B-8177 gives the cheese and pleasant and desirable diacetyl taste/aromat. This mutant produces less acid (and therefore 'acid' taste) in the cheese than the parent (II) and allows easy growth of Leuconostoc cremoris while retaining the diacetyl-forming and inhibitory action of the parent.
Patent DE-2736627-A1 (DE)
Title: (Meth)acrylate! coating and sealing compsns. - contg. (meth)allyl or benzyl ether(s) to accelerate hardening by hydroperoxide metal drier mixts
Inventor: FRANK WALTER
IPC: C09D4/00
Filed: 1977-08-13
Abstract: Binder for coatings and sealants consisting of a hardenable mixt. of (A) 30-90 wt.% (meth)acrylate of an aliphatic alcohol contg. 2-4 OH gps., opt. adducted with 1-2 mols. 2-4C alkylene oxide per OH gp., and/or (meth)acrylate ester of a polyepoxide with more than one 1,2-epoxide gp. per mol., (B) 10-70% ether from 1 mol. aliphatic alcohol with 2-4 OH gps. and 1-3 mol. allyl alcohol and/or benzyl alcohol, any unreacted OH gps., opt. being esterified with (meth)acrlic acid, and (C) 0.5-5 wt.% hydroperoxide plus 0.01-2% metal salt of a drier acid. Used for coating of films, leather, plastics, textiles, ceramics, metals, and esp. wood, paper and cardboard. Addn. of (B) accelerates the hardening at normal temps. using the hydroperoxide/metal dried system and alows this to replace amine/acyl peroxide hardener systems. Clear, colourless coatings can be made and expensive equipment for radiation hardening by UV light or electron beams is unnecessary.
Patent DE-2737453-A1 (DE)
Title: TDM companding system for voice signals - uses transmit and receive stores and very low signal sampling rate to connect several subscribers to single voice bandwidth channel
Inventor: LOGEMANN HELMUT
IPC: H04B14/04
Filed: 1977-08-19
Abstract: The time multiplexing system connects several subscribers to a shared voice channel using a very low sampling frequency and a temporary store at the receive end to fill the gaps caused by the low sampling rate. Only every nth oscillation signal (n = 2, 4, 8) is stored in a transmit store. These oscillation signals are read out compressed in time by a factor n and sent to the receiver where they are written into n receive stores for expanding back to their original spacing.
Patent DE-2738615-A1 (DE)
Title: Fuel element spacer grating of metal strips - esp. double strips has alternate rigid and resilient integrally formed studs
Inventor: KROEPFL HANS
IPC: G21C3/356
Filed: 1977-08-26
Abstract: A spacer for nuclear reactor fuel elements comprises a grating composed of on-edge strip elements which centre the fuel elements by means of rigid and resilient studs. The on-edge strips are narrow in comparison with the lattice pitch and are all identical. Along each strip, a rigid stud alternates with a resilient stud in successive squares of the pitch. The rigid studs may be single or double. A grating may be composed of strips which in one direction carry only resilient studs and in the other direction carry only rigid studs. The increased lightness of the grating reduces the obstruction to coolant flow and the absorbent effect of the grating.
Patent DE-2744957-A1 (DE)
Title: Mass-produced item feed mechanism - has two elastic conveyor belts allowing rotation and lifting in response to braking and/or acceleration
IPC: B65G15/14
Filed: 1977-10-06
Abstract: The elastic feed mechanism is for mass-produced items such as screws, cans, etc. It comprises two or more elastic conveyor belts, whose elasticity also allows rotation and lifting of the items. Rotation can be effected by braking or accelerating one of the belts, while a lower belt can be used to lift them. The design requires no modification to handle different items, and protects them from shock, being in addition silent in operation.
Patent DE-2749703-A1 (DE)
Title: Endoscopic examination equipment trolley - has facilities for air and liq. pumps, containers and light sources, with associated controls and supply lines
Inventor: EHMANN DIETER DR MED
IPC: A61B1/12
Filed: 1977-11-07
Abstract: The trolley for equipment etc. used for endoscope examinations including electrosurgical equipment has a number of shelves, compartments etc. and electrical equipment and controls. It can have facilities for suction pumps, secretion containers air pumps and the associated supply lines. A variable intensity light source is included, also a central connection unit for all the associated supply lines. This can be swung down after releasing a screw. A set of adjustable shelves at the bottom holds the different types of endoscope equipment.
Patent DE-2750229-A1 (DE)
Title: Tunnelling machine debris removal system - has water trough at bottom to receive falling material which is removed by suction pipe
Inventor: STUCKMANN DIETER
IPC: E21D9/12
Filed: 1977-11-10
Abstract: The tunnelling shield has a front frame (1) and rear frame (1) supporting a set of horizontal cutters (4), advanced by telescopic cylinders (5). Additional cutters (13) are mounted on intermediate platforms (22), advanced by further cylinders (16). The portion of the frame (8) resting on the flow level cutters is formed as a trough to hold a liquid, which is delivered through a pipe (9) from the rear. Cut material (37) falling on the platforms (22) drops through holes (23) in the platforms, then into the trough. The resulting slurry is then extracted by a suction pipe (10) at the bottom.
Patent DE-2753684-A1 (DE)
Title: Rotatable table for automatic tester - holds semiconductor wafers which can be electronically heated or cooled and subjected to pressure or vacuum
Inventor: REITINGER ERICH
IPC: H01L21/673
Filed: 1977-12-02
Abstract: The rotatable table holds semiconductor wafers etc., and consists of a stationary and a rotatable part, with a bearing plate. It has a heater for the water and a pneumatic device generating pressure or vacuum in recesses in the bearing plate. The wafer heater is in the rotatable part, and can be switched to a cooling operation. The rotatable part has a cable connecting the electric heating/cooling device with the stationary part. The rotatable part can also have a pneumatic connector coupled to the recesses in the bearing plate and the pneumatic device.
Patent DE-2810825-A1 (DE)
Title: Mine prop trestle support unit - has intermediate stabilising telescopic stanchions at obtuse or acute angle
Inventor: PAWELSKI LUDWIG
IPC: E21D23/00
Filed: 1978-03-13
Abstract: The unit has four or more telescopically length-adjustable stanchions between cap and floor bar on the trestle prop support system in underground mining, with edgs hinged to these bars. There are pref. two stabilising stanchions (17, 18) between the cap and floor bars (3, 4) with longitudinal axis enclosing an angle significantly deviating from a right angle with the plane of the cap and floor bar. The stabilising stanchion concerned is also hinged to this bar. This is structurally robust and compact permitting favourable alignment of cap and floor bar.
Patent DE-2821094-A1 (DE)
Title: Thermostatically controlled water mixing valve - has hot feed part of valve body kept in location during adjustment movement
Inventor: JOHN CLAUS ING GRAD
IPC: G05D23/13
Filed: 1978-05-13
Abstract: The thermostatic mising valve for hot water has a valve body movable between the hot and cold valve seats. The valve body (2) is a two-part contruction, with one part (22) for hot water inflow (4) connected to the other (21) for cold water inflow (3) for a limited movement. The hot water feed part remains in position during the adjustment due to friction in the valve housing (1). The whole valve body is tubular, with its outer face edges (5) controlling the cross sections of the inflow apertures.
Patent DE-2830585-A1 (DE)
Title: Telephone exchange switching mechanism - has memory holding dialling numbers for access by abbreviated codes
Inventor: BAUERNFEIND HERBERT
IPC: H04M3/44
Filed: 1978-07-12
Abstract: The switching system for a telephone exchange has several subscriber numbers stored in a memory. These may be accessed by using an abbreviated code. Th circuit providing the dialling numbers comprises several selector assemblies and a common number memory accessible to them. The memory provides the numbers digit by digit to the selectors in response to a request. The selector assembly is put into a waiting state by reception of a code contained in the common number memory, and positioned in front of a dialling number. In this state a signal is produced preventing a break in the connection and an acoustic signal receiver is connected to the line.
Patent DE-2841981-A1 (DE)
Title: Dough drum discharge conveyor - with specified belt return end radius in contact with drum surface
Inventor: SCHROEDER REINHARD
IPC: A21C9/08
Filed: 1978-09-27
Abstract: A discharge conveyor for lumps of dough, expelled by pistons from the cavities of an intermittently revolving drum, starts to move in advance of the next step of the drummotion. The radius of the belt in contact with the drum surface is smaller than 1/10 (1/15) of the drum radius. This prevents the dough from being drawn into the wedge gap between belt and drum, without requiring an extra roller over the gap.