baber/WOPTO huggingface dataset:
Patent DE-2753154-A1 (DE)
Title: Ferric chloride soln. prodn. from dilute ferrous chloride soln. - by evapn. and chlorination in closed cycle, allows use of industrial waste as raw material
Inventor: AZANZA BURRUETA ESTEBAN
IPC: C01G49/10
Filed: 1977-11-29
Abstract: Prodn. of dissolved FeCl3 is effected by subjecting an aq. FeCl2 soln. to a concn. process by evapn. and chlorination, with addn. of Cl2. It is pref. to subjected FeCl2 to chlorination in a first stage and concn. in a second stage in a closed cycle. The process is suitable for converting industrial wastes contg. FeCl2 in low concns. into a useful prod. Chlorination is pref. carried out in chlorometers using the Venturi effect between the Cl2 container and the network of piping with FeCl2. An external heat source is used during the concn., which is carried out under a gas exhaust lock to ensure removal of the gases by evapn. Alternatively, the aq. FeCl2 soln. is conc. by natural evapn. on dry surfaces and placed in various containers, from which it circulates through 2 consecutive oxidn. towers with a Cl2 cloud, so that FeCl3 soln. of the required concn. is obtd. The Cl2 is introduced in the liq. state through the bottom of the second oxidn. tower and then passes into the cycle in the gaseous state. No external heat source is needed.
Patent DE-2758948-A1 (DE)
Title: Switch=on system for inverter with transformer - limits first trigger pulse to quarter of operating frequency period to reduce starting current and voltage distortion
Inventor: JUETTE REINHOLD
IPC: H02M7/517
Filed: 1977-12-30
Abstract: The switch-on system is used with static inverters having an output transformer as a magnetic voltage regulator. In order to avoid a very high starting current which can be caused by magnetic saturation the first triggering pulse for the converter is limited to one quarter period of the operating frequency. Subsequent impulses are set at a half period. The pulse variation can be set by electronic logic elements. The result is a starting current which does not exceed twice the full load current and a steady output voltage after about three periods. There is no voltage overshoot.
Patent DE-2801760-A1 (DE)
Title: Refrigerator compressor double walled safety heating helix - has aluminium powder filled space protecting compressor against overwork
Inventor: HINRICHSEN BODO
IPC: F24H4/04
Filed: 1978-01-16
Abstract: The double wall safety heating helix is used for refrigerator compresses. This arrangement ensures energy recovery from the refrigerators and freezing systems and warms water used for drinking and other purposes. The refrigerant pipeline is separated before the inlet to the condenser. This pipe is extended and formed into a heating helix and held in a tank for heat releasing to the water. The heating helix consists of double wall copper tube. The space between the two helical pipes is filled with aluminium powder. The latter ensures good conductivity and stability. Ends of the tubes do not require liq. tight joining. This arrangement ensures that excessively high working pressures are not used in the compressor in hot seasons.
Patent DE-2821154-A1 (DE)
Title: IC engine exhaust turbocharger - has shaft with heat tube to transfer heat from turbine to compressor rotor
Inventor: EMMENTHAL KLAUS-DIETER DR ING
IPC: F02C6/12
Filed: 1978-05-13
Abstract: The exhaust gas turbocharger is partic. for mixture-compressing automotive engines, having a compressor rotor rigidly coupled by a shaft to a turbine rotor. The shaft (5) incorporates means (11) to transfer heat from the turbine rotor (3) to the compressor rotor (4), typically a heat tube concentrically mounted in the shaft, and with a capillary structure (12) running for the entire length along the outside wall, or alternatively only near the turbine rotor, which is vertically below the compressor rotor.
Patent DE-2824770-A1 (DE)
Title: Two stroke engine port finishing system - includes deburring edges by electrochemical machining chromium plated bore
Inventor: HUBER PETER
IPC: B23P15/08
Filed: 1978-06-06
Abstract: The edges of the ports of two-stroke engines have to be rounded in order that the piston rings can slide smoothly over the ports when the engine is running. This rounding of the port edges is achieved by electro-chemical de-burring in the following way. The cylinder walls (11) are first hard chromium plates (12), to a thickness of 0.08 mm. The surface is then honed so that the thickness is reduced to 0.06 mm. The cylinder (7) is then subjected to electro-chemical de-burring which rounds off the edges of the port (6) including both the chromium plate (13) and the aluminum base (11).
Patent DE-2824932-A1 (DE)
Inventor: MELZER RUDOLF
IPC: B65H9/10
Filed: 1978-06-07
Abstract: A mechanism for registering a sheet against front and side stops on the feed table of a printing press, employing a suction head recessed in the table and reciprocated for lateral shifting movement in the direction of the side stop timed with the arrival of the sheet. The head is connected to a source of suction so that the sheet is shifted into contact with the side stop. The head has intentional play in the direction of feeding movement of the sheet, as measured from a reference position, and is freely rockable about its axis, so that the sheet is free to settle against the front stop at the same time that it is being shifted toward the side stop. A conduit connected to a source of a pressure is provided for applying a short puff of air to the head, timed with completion of the shifting movement, to free the sheet from the head in readiness for removal of the sheet from the table. The return movement of the head is utilized to reverse the play and to restore the head to reference position. In the preferred embodiment of the invention the head is mounted upon a reciprocated slide which is slidable upon a tube which serves as an air conduit. Also in the preferred form of the invention the same drive shaft is employed in a compactly integrated construction to obtain the reciprocating movement and for rotating air valves to insure high speed synchronization.
Patent DE-2826444-A1 (DE)
Title: Moulded plastics container for eggs and fruit - is made of single piece of plastics with flexible hinge region and pegs engaging holes
Inventor: WREN FREDERICK WILLIAM
IPC: B65D85/32
Filed: 1978-06-16
Abstract: The egg or fruit container (10) is made of a single piece of plastics moulded into shape. The box has an integral lid hinged to the lower part of the box along one edge. The lid is fitted with two pegs located along the front edge. The box has two holes to match the pegs. The holes have vertical sides on the peg diameter and a triangular section at the top. The lid is also located by corner flats. The base has two pillars fitted in the centre of the box. The pillars reach the lid when this is closed and support it in the centre.
Patent DE-2828277-A1 (DE)
Title: Rolling mill with hydraulically driven rolls - controls driving torque at each station through separate pressure reducing valves
Inventor: BUELTMANN RUDOLF
IPC: B21B35/00
Filed: 1978-06-28
Abstract: Rolling mill has four successive rolling stations for performing successive reduction of a continuous metal strip or section. Each set of rols is driven by a hydraulic motor which is supplied with oil from a pump driven by a motor. In the supply line to each motor there is a pressure reducing valve and a shut-off valve. Each pressure reducing valve can be separately adjusted so that the torque exerted by each set of rolls is maintained at the correct value to prevent any buckling or deformation of the rolled strip or section.
Patent DE-2829701-A1 (DE)
Title: Securing catch for tipping car seat - has bent wire spring to replace support arm acting directly on catch
Inventor: BECKER BURCKHARD
IPC: B60N2/235
Filed: 1978-07-06
Abstract: The securing catch (5) for a tipping car seat has the catch linked to a profiled spring (11) whose one section is set axially to the spring pivot (3) and which is linked to the hand release lever on the other section of the hinge. The spring forms part of the catch linkage so that a simple connection is obtained using fewer components. The spring also serves to prevent rattles.
Patent DE-2831804-A1 (DE)
Title: Microwave heating arrangement for cooker - has lamp unit readily accessible for cleaning and microwave trap
IPC: H05B6/76
Filed: 1978-07-19
Abstract: The microwave heating system is used in a cooker. The system has a h.f. generator with a lamp for illuminating the chamber. The lighting arrangement and associated components are readily cleaned. The heating chamber is efficiently sealed against the microwaves. A lamp socket (12) is fastened on the outside surface of the housing wall. This lamp socket is accessible through an opening from the heating chamber (2). The opening as well as the lamp are covered by a transparent protection envelope which can be readily fitted and dismantled from the heating chamber side. The protection envelope is arranged so that it covers the flow path of a microwave trap.
Patent DE-2832041-A1 (DE)
Title: Loudspeaker box with front mounted driver unit - has N-shaped channel with straight sides leading from rear of loudspeaker to opening in front of box
Inventor: DUELL PETER
IPC: H04R1/28
Filed: 1978-07-21
Abstract: The loudspeaker box has its loudspeaker located in its front wall. A channel (10) within the box vol. opens at the rear of the loudspeaker. The channel changes direction several times inside the box, widening as it progresses away from the rear of the loudspeaker. At its wider end the channel emerges through an opening in the front of the box adjacent to the loudspeaker. The channel may be N-shaped with straight sides. Two such channels may be included, one on each side of the loudspeaker and of different sizes.
Patent DE-2835814-A1 (DE)
Title: Drink making machine esp. for passenger car - has water heated by element connected to cigar lighter inside vehicle and includes plastic beakers
Inventor: NAUMANN WILLI
IPC: A47J31/00
Filed: 1978-08-16
Abstract: The drink making machine can be easily transported in a private car has a rectangular case with a removable tank (13) for holding water. An electric element controled by the switch (22) heats the water and can be connected to the cigar lighter of the car. Three small drawers on one side of the case (10, 11, 12) are used to store packets of tea, coffee, etc. A stack of plastic beakers (21) is stored on the other side of the case. One of these beakers is placed in a recess in the base to receive the hot water from the spout (25). The case is also equipped to hold small portions of coffee, cocoa, tea etc.
Patent DE-2836012-A1 (DE)
Title: Telex machine printing mechanism - has forked centring protrusion on hammer engaging with spoke under character
Inventor: HUMBS ROLF DIPL ING
IPC: B41J9/133
Filed: 1978-08-17
Abstract: The mechanism prints characters on paper in telex machines etc., these being mounted on spokes and struck by a rear hammer after bringing into the working position. The hammer (6) has a forked centring protrusion (10), engaging with the spoke (3) in front of it directly below the character before printing, and guiding it during the printing operation. The protrusion operation. The protrusion can have a funnel-shaped recess to accommodate the spoke, or can curve outwards each side. The hammer face may form the rear part of the fork recess, which can be a close fit round the spoke.
Patent DE-2836504-A1 (DE)
Title: Detachable wall section assembly system - comprises holding components at corners with stops for inserted arms pref. of aluminium
Inventor: GASSLER KURT
IPC: E04B2/74
Filed: 1978-08-21
Abstract: The system allows wall sections to be detachably fitted together, being partic. for use in shop fitting and the construction of show stands or furniture. A holding component (10) is mounted at one or more of the corners of the wall section, and has stops (13-18) for the arms of components inserted in it. It can comprise two plates held apart by distance pieces (13, 14, 22, 23) which also form stops for the inserted arms, whose thickness can be roughly equal to the distance between the plates. Both holding and inserted components can be of aluminium.
Patent DE-2838154-A1 (DE)
Title: Tunnelling machine drill head with roller cutters - has bearing blocks protruding beyond head periphery on rock face side
Inventor: GJAKUN LUKA DIPL ING
IPC: E21B10/12
Filed: 1978-09-01
Abstract: The tunnelling machine has bearing blocks to accommodate roller drilling tools on both sides, mounted on the arms which protude outwards in a star pattern on the rotating drilling head. Park of each bearing block (5), on the front internal faces of the drill head arms (7), protrudes with effective peripheral sections beyond the periphery of the head (1) on the rock face side. The blocks may have a sloping face (9) inclined both along and across the plane in the direction of drilling, with tools rotary axis (10) parallel to it.
Patent DE-2838566-A1 (DE)
Title: Roofing element with fixing and adjusting members - consists of fireproofed chipboard panel with heat insulating and roof skin layers
Inventor: LANGEN ROBERT
IPC: E04D13/16
Filed: 1978-09-04
Abstract: The roofing elements consists of a load bearing panel provided with a layer heat-insulating material and also with a roof skin coating. It can be a chipboard panel, pref. with fire-protected impregnation, with the heat-insulating layer cemented to its underside. The roof skin layer may protrude as an overlap strip on two abutting sides. The element can incorporate previously attached fixture units, pref. of the plug type for connection to corresponding counter units on a substructure with lengthways adjustment by screws.
Patent DE-2840729-A1 (DE)
Title: Wooden shelving unit for display of goods - consists of vertical support columns joined by box-shaped framed shelves fitting into grooves
Inventor: LIEBICH MAX
IPC: A47B47/04
Filed: 1978-09-19
Abstract: The shelving unit is partic. made of wood, and consists of vertical supports (1) at the corners, to which are joined shelves (2, 3). The shelves (2, 3) have vertical sides and a box-shaped frame (6) with the base (4) on the bottom side of the frame. The support columns (1) each have two lengthwise, parallel grooves along them, which extend over their entire length. The sides (6) of the shelves (2, 3) which meet at the corners have protruding projections which fit into the corresponding grooves of the support columns (1). Spacer pieces (8) in the form of thin strips of material are inserted into the lengthwise grooves of the support columns.
Patent DE-2843013-A1 (DE)
Title: Sand blasting hose with nozzle - has long gradually reducing cross=section leading to nozzle end
Inventor: GLAESER KARL-CHRISTIAN ING GRA
IPC: B24C5/02
Filed: 1978-10-03
Abstract: The sand blasting tool comprises a nozzle at the end of a flexible hose. The nozzle comprises a first portion with reducing cross-section which may lead to a throttle point and a second portion with increasing cross-section. The first portion extends over considerable length and converges gradually. The length of this portion may be between 500 and 1000mm. At least part of this portion is contained within the hose. The first portion and the throttle may be entirely contained within the hose. At least part of the second portion may be formed by gradually increasing wall thickness of the hose.
Patent DE-2844113-A1 (DE)
Title: Hollow bladed propeller for water aeration - having hollow hub with passage for air running along leading edge with cover from which air leaves as cloud of bubbles
Inventor: LEISTNER KURT
IPC: B01F7/02
Filed: 1978-10-10
Abstract: Solid liq. or gaseous additives are introduced into contaminated water by a rotating propeller into which the additive is introduced. The propeller has a hollow hub from which run passages to the surface of the blades. These are covered along the leading edge of the blade but open towards the trailing edge. The passages are covered by flights which induce suction behind them. Additive is then drawn through the hub and distributed into the liq. Optimised performance as determined experimentally can be achieved.
Patent DE-2845720-A1 (DE)
Title: Cardboard folding box blank - has one lengthwise flap appreciably shorter than side walls and other flap of same length
Inventor: GRASSNER WILLI
IPC: B65D5/02
Filed: 1978-10-20
Abstract: The cut sheet is made particularly of carboard or corrugated paper. It is used for folding into a box, and it has a top and/or bottom formed by flaps attached to the side and end walls. One lengthwise flap (3) has the width of the sidewalls (2), while the other (4) is appreciably shorter. Along the outer edge of the shorter flap there can be a tear-open perforation (9). The ends of the shorter flap and those of the end flaps bearing against it can have embossed portions and recesses positively engaging together.
Patent DE-2849063-A1 (DE)
Title: Portable chain saw IC engine suction noise insulation - involves resonance cavity with space between socket opening and pipe and filter plate
Inventor: WUEST GERHARD
IPC: F02M35/14
Filed: 1978-11-11
Abstract: A structural element (10), in the form of a machine casing tank or other unit, incorporates a resonance space (20). It is filled on the chain-saw assembly which is driven by an I.C. engine and provided with a suction noise attenuating system. this space is linked to a carburettor (15) with a suction pipe socket (16). The suction opening n17) is sited at an interval from a suction pipe (25), forming an intervening space (18). Air sucked in passes through a chamber (30), and there is a filter plate (35) covering the flow surface, fitted with an advance air supply chamber (40) with an air intake pipe socket (41). Noise insulation and air filtering are increased and the unit is compact.
Patent DE-2851535-A1 (DE)
Title: Sports shoe with replaceable spikes - has conical indentations interacting with conical fastening pins on spikes for self-locking action
IPC: A43C15/16
Filed: 1978-11-29
Abstract: The spikes etc. are detachably held in sockets (11) designed as indentations (13) having an inwardly tapering conical shape. the spikes (14) have corresponding conical fastening studs (15) so that when these studs engage in the indentations or recesses an automatic self-locking is achieved. The locking action is now produced by force rather than keyed engagement and to secure the spikes it is merely necessary to knock the spikes in the axial direction. Manufacture is easier since an accurate precision fit between the hitherto engaging parts of the spikes and sockets is no longer necessary. The spikes can be removed by a short twist e.g. by a key to overcome the self-locking action.
Patent DE-2853424-A1 (DE)
Title: Multiprocessor system with cache memory - has common bus connected to addressable main memory for transferring address and data
Inventor: MC LAGAN ANGUS
IPC: G06F12/0806
Filed: 1978-12-11
Abstract: The multiprocessor system has a number of central processor units sharing the same main memory over a common asynchronous bus. Each central processor directs all memory requests to its own high speed cache memory. If the request is to read data from memory, and cache memory control determines if the addressed data is transferred to the processor without accessing main memory over the bus. If the data is not present in the cache memory, the cache memory control gains acces to the bus by a priority circuit data reads out the data from memory, storing the data in the cache memory at the same time that it transfers the data to the processor.
Patent DE-2856816-A1 (DE)
Title: Christmas tree holder for wall fixing - has metal arm displaceable in rail for setting tree at required height
Inventor: SCHULZE FRITZ
IPC: A47G33/12
Filed: 1978-12-27
Abstract: The Christmas tree can be held suspended on the wall or in a room corner by a holder (2) whose built-in adjustable arm (6) can be extended or retracted according to the size of the tree. So that the arm can be set horizontal relative to the tree the axis of the arm can be set in a rail (5a) where it is displaced and fixed by set screws (7). The holder can be pressed right and left against the wall by its own weight and the weight of the tree via a rubber buffer (11) at the lower end of the holder. The tree can now be set at any required height. Since it is above the ground its needles are less affected by the ground vibration. In sparse trees the wall mounting means all the branches face into the room for a denser appearance.
Patent DE-2904182-A1 (DE)
Title: Push button selection keyboard for telephone set - has two orthogonal sets of conductors with L=shaped lateral arms acting as spring-contact crosspoint switches
Inventor: GEESE ALBERT
IPC: H01H13/70
Filed: 1979-02-05
Abstract: The keyboard has a switching matrix comprising two orthogonal sets of parallel conducting strips (1-7). The sets lie in two planes one above the other and insulated from one another. The strips in the first set have lateral L-shaped arms (9) projecting from them and acting as leaf-spring contacts. The push-buttons (8) are located above the ends of these arms and, when depressed, press the ends of the arms down onto the corresp. conducting strips in the second set of strips immediately below. The arms therefore act as crosspoint switches. Needs no separate contact plates and offers simplicity but with reliability and versatility.
Patent DE-2905064-A1 (DE)
Title: Line transformer for TV receiver - has conducting foil as extra winding to suppress parasitic oscillations
Inventor: BLACK KARL-HEINZ ING GRAD
IPC: H01F27/34
Filed: 1979-02-10
Abstract: The line transformer has secondary windings producing the high volate for the electron tube and auxiliary voltages for supplying the receiver. An extra winding (F) comprising an electrically conduting foil is located between the primary winding (F) and one secondary winding (H) in order to suppress parasitic oscillations. The other secondary winding (S) is located on the other side of the primary winding, i.e. between the primary and the core (K) of the transformer. The core and all the windings are coaxial. The two secondary windings consist of subwindings.
Patent DE-2908928-A1 (DE)
Inventor: BOGDANOVIC BORISLAV DR
IPC: C07F1/02
Filed: 1979-03-07
Abstract: A catalytic system is provided for the lithiation of  alpha -olefins and  alpha , omega -diolefins with concurrent production of lithium hydride. The catalysts include oxygen and sulfur containing organic compounds and polycyclic aromatics which can be combined with alkali metal and/or transition metal compounds. High yields of pure and stereospecific lithiated olefins are obtainable.
Patent DE-2911140-A1 (DE)
Title: Ski with raised stay carrying binding - increases ski tension and includes adjustable band to alter tension in accordance with weight of user and snow conditions
Inventor: PLENK ANTON
IPC: A63C5/00
Filed: 1979-03-21
Abstract: The ski has a running surface which may be curved upwards and an area for the ski boot is accommodated on its upper side. On the upper surface a raised stay is fitted extending along the length of the ski. It is of less width than the ski section forming the sliding surface and with the ski binding is fitted on this stay. Along the length of the ski a band (6) is firmly connected to the ski near to the front and rear ski ends and there is an installation (5) to adjust the length of the band which is positioned within the boot area of the ski. The band itself may extend along the upper surface of the ski or inside the stay (2) yet close to its surface.
Patent DE-2920072-A1 (DE)
Title: Yarn sizing process - where warp sheet is pre-wetted before applying size solution and drying
Inventor: GILLESPY KEITH REX
IPC: D06B3/18
Filed: 1979-05-18
Abstract: The warp sheet is prewetted with a non-aq. solvent before applying a non-aq. solvent contg. size. Specifically prewetting is by immersion and squeezing, or by spraying, or by an applicator roll and reservoir. Prewetting reduces absorbency and economized on size consumption.