baber/WOPTO huggingface dataset:
Patent DE-2537897-A1 (DE)
Title: Seam-welding of pipes or tubes - using grooves adjacent to the butt joint for a scanner to guide the welding burner
Inventor: ZIMMERMANN HERBERT ING GRAD
IPC: B23K9/032
Filed: 1975-08-26
Abstract: Welding heads or root pass milling cutters are automatically steered along tubes, esp. spiral welded tubes, using >=1 guide groove, formed in the metal strip parallel to, and at a distance from the butt joint. The grooves are melted by the welding heat so they no longer exist after welding A scanner pref. travels along the guide groove(s) and a second groove is employed to monitor the steering of the burners or cutters. Provide a simple and reliable guidance system using e.g a diamond stylus on a pick-up arm with an amplifier and adjusting device to kep the burner aligned on the butt joint.
Patent DE-2541574-A1 (DE)
Title: Cooling and purificn. of gas from pressure gasification - by heat exchange with the coal feed
Inventor: HOELTER HEINZ
IPC: C10J3/84
Filed: 1975-09-18
Abstract: Cooling and pre-purification of raw gas from pressure gasification by direct contact with the solid fuel for the reactor, pref. coal. Pref. the coal is preheated to 500 degrees C max by direct contact with the hot gas e.g. in a helical or vibratory conveyor operating under pressure. The coal may be separated into coarse and fine fractions and the former exposed to the hot gas first, so that both fractions reach the same upper temp. The gas is purified by deposition of tar, etc. on the coal which increases its fuel value and the efficiency of the process. Dust is also removed from the gas, reducing the need for subsequent cleaning. Expansion and caking of coal in the reactor is reduced by the thermal pre-treatment, the coal retaining a granular form which improves the efficiency and output of the reactor.
Patent DE-2542895-A1 (DE)
Title: Hinge for furniture panels with stay - has spring loaded tubular stay pivoted on hinge members
Inventor: KNEILE KARL
IPC: E05F1/14
Filed: 1975-09-26
Abstract: The hinge fitting is for panels pivoting about horizontal hinges used in furniture. The hinge members are connected on the panel and on the frame of the opening closed by the panel. The hinge system is readily installed and it forms also a stable stay arrangement. Both hinge fitting parts (1, 2) are connected directly to form a pivoted hinge. The pivot points (32, 46) of the stay rod (3) and of the two hinge parts (1, 2) are in a common plane. The hinge parts are of unequal length and the second (2) hinge part is stepped near the hinge pivot so that its major flat part is held on the edge of the frame (16). The stay rod (3) accommodates a spring (30). The pivot block for the second hinge member slides against this spring. The connecting pin is guided by a slot in the stay.
Patent DE-2549752-A1 (DE)
Title: Recovering waste rubber from tyres - by disintegrating classifying and deep freezing in successive repeated stages to remove metallic parts
Inventor: LIPPE GEORG
IPC: B29B17/00
Filed: 1975-11-06
Abstract: Waste rubber from pneumatic tyres is recovered by disintegrating the rubber into coarse particles for sepn. of metallic particles, classifying the residual fraction into metal contg. and metal free fractions, deep freezing the metal contg. fraction and disintegrating into fine particles to remove the metallic particles, mixing all metal free rubber fractions and disintegrating into fine particles to remove cord residues, regenerating the rubber fraction and treating with filler materials for further processing. Deep freezing may be effected using a mixture of dry ice and heat transfer liquid such as methanol, acetone. Alternatively, the freezing may be carried out by spraying liquid CO2. Freezing is effected at temp. below -60 degrees C (-60 to -79).
Patent DE-2550202-A1 (DE)
Title: Plastics pipe flange connection to rainwater tank - has flanged coaxial tubes screwed together to clamp tank wall between them
Inventor: KESSEL BERNHARD
IPC: B65D88/54
Filed: 1975-11-08
Abstract: A pipe flange assembly is for connecting a pipe to the flat wall of a vessel, esp. a basement drain tank or rainwater tank. The end of the connecting length of pipe has an internal thread, into which there is screwed an externally threaded internal sleeve (I) with a flange at one end. The flange of (I) bears against the inner face of the tank wall around the opening of the sleeve is screwed tightly into the connecting length of pipe, thus clamping the tank wall into the assembly. Pref. the length of the cylindrical portion of (I) is 2-10 times the thickness of the tank wall, and there is an un-threaded length at least equal to the tank wall thickness. The internally threaded portion of the connecting length is pref. a socket of larger dia. than the other end; a shoulder between the two portions acts as a stop for the end of the next length of pipe. Material for (I) and connecting length is pref. sanitary quality PVC or other plastics. Used for rapidly and easily making an attachment (nozzle) on a tank. The flange assembly can be fitted in any flat part of the tank wall where an opening can be drilled or cut.
Patent DE-2551078-A1 (DE)
Title: Ceiling mounted high velocity induction air inlet - has outer sides of secondary and mixing chambers bolted together
Inventor: PAUL WERNER
IPC: F24F1/01
Filed: 1975-11-13
Abstract: Primary air enters a pressure chamber (2) from a supply duct (5). Beneath this a secondary air inlet chamber (16) is arranged alongside a mixing chamber (15). These run longitudinally along an opening in the ceiling (65). The secondary and mixing chambers are formed by parallel outer walls (9) and are separated from each other by dividing wall (14) parallel to the outer walls. The outer walls (9) are connected by spacer studs (56) with bolts (55) through them. The combined assembly has a spring clip attachment (53) to the pressure chamber (2). Horizontal plates (57, 58) running internally from the outer walls (9) slot into grooves (60) in the sides of the primary air induction jets (12).
Patent DE-2555835-A1 (DE)
Title: Closed loop electric wave filter - has charge transfer devices containing individual elements of specified capacitances
Inventor: KUENEMUND FRIEDRICH DIPL ING
IPC: H03H7/01
Filed: 1975-12-11
Abstract: An electric wave filter for data transmission has charge transfer devices (2) combined into a closed loop (1) able to oscillate, and forming a resonator. A CTD input line (3) and a CTD output line (4) are coupled with it. Individual CTD elements have between the CTD input (3) and output (4) lines, in the propagation direction, charging capacitances (C2). The other CTD elements in the loop (1) have capacitances (C3 = C2-C1,) where (C1) is charging capacitance of at least one CTD connection line (3 or 4). Several individual resonators forming the loop (1) can be in series, forming a ring resonator.
Patent DE-2556697-A1 (DE)
Title: Typewriter ribbon universal spool - has spring blades in centre which fit onto different centre post and driving pins clusters
Inventor: MAILINGER HERBERT
IPC: B65H75/18
Filed: 1975-12-17
Abstract: A typewriter ribbon spool fits on different sized posts and different numbers of driving pins. Three radially offset resilient blades project into a large centre hole. The free ends of the blades make line contact, concentrically gripping on the centre post on the typewriter driving plate. The spool inside dia. exceeds the driving pin (2) circle dia. Springy equispaced blades (5) lie tangentially on the centre post (4). The spaces between the angled blades, on the driving circle, accept multi-pins entry, with clearance up to the centre post. The free-end widths of the blades are flush with the cheeks reducing in width towards the core of the spool.
Patent DE-2558575-A1 (DE)
Title: Thermocouple with pin and sleeve as poles - has elements solder point surrounded by welded sleeve material
Inventor: LEHNERT MANFRED ING GRAD
IPC: G01K7/06
Filed: 1975-12-24
Abstract: One pole of the thermocouple pair is formed by the sleeve, while the other pole is formed by a pin surrounded by the sleeve. The two elements are mutually welded at one end, where they form the hot point. The soldered hot point (11) is coated by an aluminium layer (16), this layer being coated by welding and being of the same material as the sleeve (1). In the production the pin is inserted into the sleeve whose both ends are open. The pin does not reach to one end of the sleeve which is then pinched and welded to the pin. Then the thermocouple is coated with an aluminium protective layer. Alternately the sleeve and may be bent at right angles and then welded to form a pot-shaped welded end.
Patent DE-2558683-A1 (DE)
Title: Pressure filter with two rotatable cylindrical filter elements - arranged concentrically with an annular agitator element between them
Inventor: GUYER AUGUST DR
IPC: B01D33/073
Filed: 1975-12-24
Abstract: Within the fixed housing of a filter there are mounted two concentric cylindrical filter elements which are independently rotatable. In the annular space between these is a movable agitator system. Used for the continuous filtration of solid-liquid slurries. Ready sepn. of the cake of solids from the filter elements is obtd., partic. with solids which tend to form an adherent cake on normal types of element.
Patent DE-2559402-A1 (DE)
Title: Artificial limb joint - has pivoting portion half and support pivoting on stem fixed in bone
Inventor: GRELL HELMUT PROF DIPL ING
IPC: A61B17/17
Filed: 1975-04-04
Abstract: the joint comprises a stem anchored in one bone and equipped with one half of the pivoting portion, while a second half is attached to a second bone. A support is joined to the stem and bears against a supporting surface on the first bone. The first half of the pivoting portion (113) and the support (107) are parts of a component coupled to the stem (73) by a pivot pin, and they can be detachable from the latter. There can be a conical socket fitting over a cone on the stem and pressed against it by a screw engaging in the latter. The pivot joint can be of the hinged, ball-and-socket, gimbal or knife-edge type.
Patent DE-2605234-A1 (DE)
Title: Knife head for frozen meat cutting machine - has main cutter on rail with transverse cutter on readily adjusted attachment
Inventor: HAGER JUERGEN DIPL KFM DR
IPC: B26D7/01
Filed: 1976-02-11
Abstract: The knife head has a knife rail on which the main knife is fixed that cuts slices from the meat block. An attachment on the rail is used to set the slice thickness and to support transverse cutters. These fit behind the main cutter. The advantage claimed is that the thickness of slices can be adjusted easily and quickly. The attachment (20) has a continuously variable adjustment and is hinged to the knife rail on the cross knife side. The cross cutters fit on pegs on the rail and are fixed on the attachment either directly or through slots. An eccentric tensioning device (86, 87) simultaneously fixes the attachment and the transverse cutter. Two interchangeable transverse cutters can be used.
Patent DE-2608728-A1 (DE)
Inventor: GASSNER ERICH ING
IPC: E06B9/13
Filed: 1976-03-03
Abstract: The sliding or roller blind forming the heat-insulating device consists of a plate or web (a) of uniform thickness made of foamed plastic. The blind has on one side or both sides a surface coating, e.g. made of linen. The  lambda  value of the insulating material is to be </= 0.05 [kcal/mh DEG C]. The plate or web is approximately 3 to 4 cm thick; it serves not only for heat insulation but also as sound insulation. <IMAGE>
Patent DE-2614022-A1 (DE)
Title: Dry running reciprocating piston machine - has coil spring around cylinder housed between piston and cylinder flanges
Inventor: LAMPARTER BRUNO
IPC: F04B39/00
Filed: 1976-04-01
Abstract: The dry running single or multicylinder reciprocating piston machine, has a piston (4) fitted with a set of self lubricating rings (6, 7) with a flanged base (10) around the piston, supporting a helical spring (3) so that it is trapped against the underside of a flange (1) around the top of the cylinder (22) inside which the piston travels, the cylinder itself passing through the coils of the spring, the piston being driven by an eccentric roller (18) with a domed contact surface. The diameter of the piston flange (10) is smaller than the hole (2) through the housing on which the cylinder flange (1) rests. The piston (4) and its lower contact portion (5) are hollow. The spring may rest on segments instead of a completely circular piston flange (10).
Patent DE-2626490-A1 (DE)
Title: Cellulose extraction process - uses steam for heat and pressure with ammonia and sulphur to recycle by:products
Inventor: EZZAT SAMI DR ING
IPC: D21C3/02
Filed: 1976-06-12
Abstract: In extracting cellulose from raw materials with a cellulose content, the raw material is prepd. using pressure of >=4 atmospheres and a temp. of >=150 degrees C. This occurs in a steaming phase, the fed steam contg. >10 wt. % of ammonia and >=3 wt. % of sulphur. The steam is led from the material, with the intermediate product contg. cellulose and passed for fractional distn. The fraction with the lower evaporation point is returned to the steam phase. The fraction with the higher evaporation point is led away as N-Lignin and the intermediate prod. is washed and dried to yield cellulose. The harmful by prods. of the process are recycled to prevent their escape into the ambient atmosphere, and prevent the need for costly environmental protection equipment.
Patent DE-2629874-A1 (DE)
Inventor: NATORI MINORU
IPC: G09G3/16
Filed: 1976-07-02
Abstract: A driver circuit for an electrochromic display device which includes segment electrodes and a common electrode. The driver circuit has a power source, switching means connected between the power source and the segment electrodes, and circuit means disposed between the common electrode and the power source. The circuit means is operative to couple the common electrode to either a positive terminal or a negative terminal of the power source, whereby an electric current will flow through the segment electrodes in bleaching and coloring directions with the use of a single power source.
Patent DE-2631788-A1 (DE)
Title: Incandescent lamp with filament holder in stem - is of integral construction with press sealed lead wires
Inventor: GLEIBE HANS
IPC: H01K1/44
Filed: 1976-07-15
Abstract: The incandescent lamp stem has a head forming simultaneously the filament holder. The lead-in wires are press-sealed in the stem. The head and the filament holder form an integral structure (1). In the head middle is formed the exhaust tube (3).
Patent DE-2635401-A1 (DE)
Title: Pure (4)-amino-indane prepn. from indanol-(4) - by gas phase amination, followed by sublimation of the indanol-(4) salt of (4)-amino-indane
Inventor: STAEGLICH PETER DIPL CHEM DR
Filed: 1976-08-06
Abstract: Prepn. of pure 4-aminoindane comprises gas phase amination of indan-4-ol in the presence of an Al2O3/SiO2 catalyst at NH3 pressure of 25 atmos. gauge and 350-450 degrees C to form a mixt. of 4- and 5-aminoindane and indan-4-ol. This mixt. is opt. enriched with indan-4-ol to molar ratio aminoindane to indan-4-ol of 1:1. The mixt. is sublimated and the sublimate dissolved in an organic solvent immiscible with water, the soln. washed with aq. alkali to remove the indanol and pure 4-aminoindane recovered by evapn. of the organic phase followed by distn. 4-aminoindane is an intermediate for pharmaceuticals. In an example, the sublimate was the indan-4-ol salt of the 4-aminoindane isomer and consists of white needles of m. pt.
Patent DE-2641061-A1 (DE)
Title: Two-part lock for glazed doors - is attached without drilling by using rubber suction pad
IPC: E05C/
Filed: 1976-09-11
Abstract: The lock is used on glazed doors, and comprises two separate but interacting parts. One part is in the form of a metal case, open at the bottom, half of the interior being occupied by the locking mechanism and the other half being empty. Under the half whic h houses the locking mechanism is a piece of rubber or similar material whose outer face has several teeth arranged in two groups, one group sloping towards the other. This acts as a sucker when the case is applied to the glazed door, ensuring that it is solidly fixed in place without the need for screws. The other part is also a case open at the bottom and is attached to the door by the same means as the first. When the lock is activated, the latch in one part enters the hollow in the other part and the door closes.
Patent DE-2651390-A1 (DE)
Title: Adjustable condyle socket for short lower leg prosthesis - with articulate connection at two edges and centre to fastening device
Inventor: BENNING HERBERT
IPC: A61F2/64
Filed: 1976-11-11
Abstract: Condyl socket for short lower leg prosthesis is in the shape of a dish with a semicircular outer or upper edge, of flexible material. The socket (2) is shaped by two recesses (3) at its inner or lower edge to form three columns (4, 5). The socket is articulately connected at three points to a fastening device (7) which is mounted on the prosthesis shaft (1) and bent into a round shape, viz. at the edges by pivot joints (6) and in the centre by a flat bar (8) which can be displaced in a holder (11) parallel to the lower leg and fixed by a notched lock mechanism (9, 10). The socket is pref. made of plastic, and has flexure points (14) in the columns. The socket has an adjustment capacity which can be adjusted tighter or looser through the clothing.
Patent DE-2651754-A1 (DE)
Title: Machine converting atmospheric pressure into mechanical energy - has oscillating swashplate subjected to moving zone of pressure
Inventor: RUTARD PIERRE
IPC: F03G7/10
Filed: 1976-11-12
Abstract: The machine has a central stationary shaft (12) with a sphere (14) at its top which forms a bearing for a circular swashplate (16). The swashplate has four connecting rods (40) which drive two perpendicular crankshafts (38). Each crankshaft carries a pair of pinions (26, 26', 28, 28') meshing with crown wheels (34, 32) on the output shaft (30). The whole is enclosed in a spherical casing (44) which is divided into two spaces by a partition (56) extending from the top to the swashplate. One space (60) is open to the atmosphere and the other (66, 64) is evacuated. The partition is rotated by a control shaft (82) from an external source. The zone subjected to atmospheric pressure thus moves across the swashplate and causes it to oscillate. The crank mechanism then rotates the output shaft.
Patent DE-2652971-A1 (DE)
Title: Secondary cooling of cast metal strand - by controlling coolant flow rate in nozzle groups by set program
Inventor: WILHELM WERNER DIPL ING
IPC: B22D11/22
Filed: 1976-11-22
Abstract: A secondary cooling system for a strand of cast metal, e.g. steel, controls the flow rate of cooling water admitted to each spray nozzle according to set values. The set values vary as a function of the distance between the spray nozle and the continuous casting mould between two curves which are specified. This prevents cracks in the surface of the metal strand. It does not necessitate any reduction of the total coolant flow and the ensuing production loss by the slower cooling rate.
Patent DE-2655771-A1 (DE)
Title: Paper hanging unit with housing for roll of paper - has roller to apply adhesive before paper is pressed on wall
Inventor: GRUBER ERNST
IPC: B44C7/06
Filed: 1976-12-09
Abstract: The paper hanging unit consists of a plastic cylindrical housing with a central shaft to support a roll of wallpaper. A reservoir for adhesive is attached to the cylinder and carries a roller with a surface layer of synthetic fibre which applies the adhesive to the wallpaper. A fork mounted at each end of the housing supports a guide roller and a pressure roller. The pressure roller which has an outer layer of soft rubber is pressed against the wall by a tension spring. Guide rails at each end of the housing enable each strip of paper to be laid without any gap between successive strips.
Patent DE-2657014-A1 (DE)
Title: Acid phosphate bonded siliceous material - used in casting moulds, for coating metal or polystyrene and as nucleating agent for glass ceramics
Inventor: WUESTEFELD BERND DR
IPC: C04B35/22
Filed: 1976-12-16
Abstract: Acid phosphate bonded fine grained silicaceous material is prepd. by treating a silicate material (beta-wollastonite) ground to 0.5-1.0 m2/g with a 50% aq. soln. of an acid metal phosphate (Al(PO3)3) in the ratio 100:25 to 100, and drying 100 degrees C to condense of low molecular components of the metal phosphate. The product may be further hardened by heating to 600 degrees C. 10% glycerine may be added to the phosphate solution as a plasticiser. The material may be used for molds for casting metals, as an impervious coating for metals, polystyrene, in the finely ground form as a nucleating agent for glass ceramics. After melting at 1250 degrees C it may be recrystallised at 1000 degrees C. It is not wetted by normal glasses in molten state.
Patent DE-2657656-A1 (DE)
Title: Roller curtain rod ball cord lock - as U-shaped unit on pulley edge providing sliding surface for balls
Inventor: BROLIN HANS ROLAND
IPC: E06B9/78
Filed: 1976-12-20
Abstract: The ball cord lock is designed for attachment to one end of a roller curtain rod which is mounted without centrifugal coupling and roll-up spring. It has a cord pulley (1) with an axially protruding pivot (2) for this, with a continuous ball cord (3) round the pulley for rolling up or unrolling. There is a lock housing (5), made up from two halves (5a, 5b) forming a bearing for the cord and enclosing it. On the housing there is a retainer (6) for attachment to a window, and the housing incorporates a U-shaped cord lock to pick-up one of the cord lengths and prevent the pulley from rotating. The U-shaped component's open part is directed towards the other cord length, while its depth increases vertically from the open part towards the closed part, with the edge faces nearest to the pulley forming a sliding plane for the balls (4) on the cord.
Patent DE-2701923-A1 (DE)
Title: Annular gas turbine combustion chamber - has air entry passages to primary zone overlapping and tangential with common centre
Inventor: KAJNOV GENNADIJ PETROVITSCH
IPC: F23R3/54
Filed: 1977-01-19
Abstract: The annular gas turbine combustion chamber (1) fits coaxially into an annular casing (2), leaving a space (3) around the outside for (upstream) air flow. The chamber walls embody openings for air entry to (6) vaporising tube, (7, 7a, 7b) primary mixing/combustion stabilising and (4) secondary combustion zone. Fuel enters vaporising tube through co-axial nozzles (15) supplied from a ring main (17). Mixing/stabilising air passage walls run tangentially with a common centre (12), overlapping so that outer wall (10) of one (7a) forms inner wall of the next (7b) downstream. Passages have a constant flow area, spacers (13) maintain this and also swirl the air.
Patent DE-2705095-A1 (DE)
Title: Toy railway line interchange pit - has cut=outs in flanged sides to clear lugs on interchange wagon to permit removal
Inventor: SCHMID EUGEN
IPC: A63H19/32
Filed: 1977-02-08
Abstract: A toy railway system includes a pit made from a dished housing, with flanges (1) along the top of two parallel sides. Between these two sides can be moved a wagon (3) mounted on wheels (5) so that it can be aligned with selected sets of rails (8). The top surface of the wagon also carries rail sections. The flanges (1) also extend inwards, and the wagon has lugs (4) extending outwards. The part of the flanges extending inwards have two sets of cut-outs corresponding to the two sets of lugs, so that in an outermost position, the wagon can be lifted vertically (E) out of the pit.