baber/WOPTO huggingface dataset:
Patent DE-2815652-A1 (DE)
Title: Heat exchanger with welded plates - has flow path plates clamped between end plates with distributing connections (SW 16.5.78)
Inventor: WINROTH AXEL EMANUEL
IPC: F28F3/08
Filed: 1978-04-11
Abstract: The plate type heat exchanger has parallel end plates for distributing the fluid medium via end connections. The heat transfer plates are arranged parallel and side by side by spacing packings and are clamped between end plates. The heat transfer plates are identical and have a square or round shape. Each plate has an edge flange and the plates are perforated. The perforations have raised edges. The plates are assembled by spot welding to form flow passages. The plate edges have a depressed profile for accommodating cruciform cross section endless packing profiles (8).
Patent DE-2816286-A1 (DE)
Title: Telephone exchange with central control device - reading selector data from connection stores associated with sub-control devices
Inventor: OW HANS-PETER VON DIPL ING DR
IPC: H04Q3/545
Filed: 1978-04-14
Abstract: The centrally-controlled telephone exchange has the storage devices that store the stages of an existing connection via the switching matrix grouped together in a connection via the switching matrix grouped together in a connection storage area such that the subcontrol devices are assigned individually, i.e. not duplicated. After the path-finding storage assigned to the central control device has been cleared (correctly or incorrectly) the stored data needed for route finding are read from the connection stores assigned to the subcontrol devices by the central control device without deleting and written into the selector store. The advantage lies in reducing storage space by duplicating both the central control device and its associated storage devices but avoiding duplicating the stores associated with the subcontrol devices.
Patent DE-2819596-A1 (DE)
Inventor: GLASER RUDOLF DIPL CHEM DR
IPC: C08L23/06
Filed: 1978-05-05
Abstract: 1. Use of a moulding material consisting of (1) 100 parts by weight of a polyethylene which (1.1) has been prepared using a chromium-containing catalyst, (1.2) has a density of from 0.935 to 0.945 g/cm**3 , (1.3) has a melt index (according to DIN 53,735, at 190 degrees C/2.16 kg) of less than 1.0 g/10 min and (1.4) has a solution viscosity (according to DIN 53,728/sheet 4) of from 1 to 5 dl/g, (2) from 0.05 to 1 part by weight of a tris-(2,4-dialkylphenyl)phosphite, wherein the alkyl groups are identical or different and each contains 1 to 9 carbon atoms, and (3) - if desired - other relevant conventional additives, in relevant conventional amounts, for the production of 10-500 mu m thick, biaxially stretched films by the film-blowing process, using a blow-up ratio ranging to 1 : 10.
Patent DE-2824213-A1 (DE)
Title: Circular saw-blade with provision for peripheral expansion - has connecting strips permitting expansion and periphery generating requisite tension
Inventor: TUOMAALA JORMA AARNE KULLERVO
IPC: B23D61/02
Filed: 1978-06-02
Abstract: There is a serrated peripheral part (7) joined to an inside part (8) by strips on the circular saw blade as used in a wood-cutting frame saw, circular or band saw. The dimension of the connecting strips (a) is such that they do not provide any appreciable impediment to expansion of the peripheral part. The width of the latter is such that is own weight, with radial stressing, is sufficient to generate the required degree of tension as the blade rotates. This width is pref. between 15 and 25% of the diameter of the blade. The length of the flexible part of the strips is pref. at least 10% of the dia. of the blade. This makes it possible to operate with high forwarding speed, great accuracy and min. loss of material.
Patent DE-2825187-A1 (DE)
Title: Transporter for non-soluble loads or emulsions - accommodates fluid in hollow walls and has screw discharger in bottom
IPC: B60P3/22
Filed: 1978-06-08
Abstract: The transporter for non soluble loads has double walls forming side tanks(5) near the bottom, and with a funnel shaped centre(2) to compact the solids. The water part of the load is separated out after filling and stored in the tanks. A screw discharge (3) along the bottom of the tank ejects the load, while additional clearance is by water from the side tnks. The tank provides a simple and effective holder for water carried, non soluble loads. No manual clearance is required to fully discharge the load.
Patent DE-2826751-A1 (DE)
Title: Typewriter ribbon cassette attachment system - has mounting and locking bolts engaging in holes in mirror image cassette portions
Inventor: FUTHS GUSTAV
IPC: B41J32/00
Filed: 1978-06-19
Abstract: The lever-type typewriter has a mounting for a ribbon cassette, with ribbon outlet and inlet slots. At the working position the ribbon is guided by a fork, raised and lowered by a mechanism, and with U-shaped arms. The open ends of the U are shut by a typing lever guide hinged parallel to the platen on insertion of the cassette. The cassette comprises two - mirror-image portions (2, 4) joined together by a rib (8) running along the type lever rest, and forming with the rib a recess open towards the platen. Each portion has a hole (12, 14) for locking onto a mounting bolt (16, 18) fixed to the typewriter frame each side of the lever segment. The portions also have control faces (63, 65) which thrust the lever guide (15) into the shut position against spring action on fitting the cassette in place.
Patent DE-2827865-A1 (DE)
Title: Grinding mill for resinous dispersions - in which cooled shaft rotates spurs meshing with spurs from barrel
Inventor: MAERZ DIETER DIPL ING
IPC: B02C17/16
Filed: 1978-06-24
Abstract: Continuously operating grinding mill has a feed at one end and a container for ground material at the outlet end, an intemediate high speed mixer, and a force feed for pourable solids and liquid. The machine uses no grinding powder or particles, its shaft is cooled and has projecting radial discs with spurs. The barrel has similar projecting spurs. The mill is force fed from an extruder which has a metering arrangement. It uses powdered fillers from a hopper and e.g. liquid polystyrene resin from a pump at controlled speed. Simple design for continuous application and which produces fine dispersions.
Patent DE-2828319-A1 (DE)
Title: Liquid fuel burner - utilises air cyclone in mixing and atomising chamber for drawing in fuel
Inventor: GRAAT JOHANNES WILHELMUS
IPC: F23D11/40
Filed: 1978-06-28
Abstract: Liquid fuel and combustion aire are brought into contact in a mixing and atomising chamber. Combustion takes place in a relatively small space with a blue flame. The air in the mixing and atomising chamber forms a cyclone, the fuel being introduced in the region of the rotating axis of this cyclone. The regulation of the combustion rate is controlled exclusively by the metering of the air introduced into the mixing and atomising chamber. The fuel is introduced as a compact jet with a specified diameter which can be a maximum of 2 mm.
Patent DE-2829560-A1 (DE)
Title: Tube expander which measures variable effort applied to rolling tool - simultaneously with a linear variable of the expanding operation
Inventor: BRIF VIKTOR MICHAILOVITSCH
IPC: B21D39/16
Filed: 1978-07-05
Abstract: Tubes are expanded into a tube wall using a roller-type rolling tool and the variable effort applied to the tool is measured simultaneously with a linear variable of the expanding operations over three successive stages affected by the expansion. The stages comprise the area of elastic deformation of the tube work, the are of plastic deformation of the tube up to the moment of tube/tube wall engagement, and the area of elastic deformation of the tube wall. Control over the expanding operation is optimised by processing the measured data in accordance with the dimensions and mechanical properties of the tube and tube wall materials. The strength and fluid tightness of each rolling joint are improved which results in longer life of structures so assembled. Used in the assembly of heat exchangers and steam generators.
Patent DE-2830257-A1 (DE)
Title: Steering wheel adjustment device - is used on vehicle prodn. line and has pendulum between optical or inductive transmitter and receiver
Inventor: BARSUN KURT DIPL ING
IPC: G01B11/26
Filed: 1978-07-10
Abstract: A device for adjusting the angular position of a part is partic. applicable to vehicle steering wheels. It is partic. simply constructed and operated and may be used on a production line with practically no increase in operating time. A housing suspended from suitable points on the part being aligned contains a pendulum which moves between a transmitter and receiver. The receiver outputs an electrical signal dependent upon the position of the pendulum relative to the transmitter. The transmitter and receiver operate optically or by inductance.
Patent DE-2831344-A1 (DE)
Inventor: MZYK HEINRICH
IPC: D03D47/26
Filed: 1978-07-17
Abstract: First sinkers (9) arranged phase-shifted relative to one another are keyed on a shaft (8) for the transport of weft-thread carriers (7) and for beating up the weft threads onto the fabric edge, and second guide sinkers (2) separating the warp threads are attached for the weft-thread carriers (7) on a frame (1). The guide sinkers possess a recess (6) for guiding the weft-thread carriers. A stripper (15) extending over the entire working width is arranged below the centre of rotation of the shaft (8) between the first sinkers (9) and the frame (1), in order to prevent fluff and other impurities from penetrating into a space (14) between the first and the second sinkers. <IMAGE>
Patent DE-2834301-A1 (DE)
Title: Travelling support frame for crane tower - has square base with castor wheel at each corner for tilting over uneven ground
Inventor: TAX HANS
IPC: F16M11/20
Filed: 1978-08-04
Abstract: The vertical supports (10) for a travelling framework or structure are each carried by a base frame (14) mountedon four castor wheels (12), one at each corner. To enable the structure to travel over eneven ground and hence to enable any castor wheel to be lifted higher than the others, the base frame forms an adjustable linkage. The bottom of the vertical support is carried by a base with four side members and a point higher up has a similar frame with four side members (32 to 34) clamped around the sides of the vertical. The lower frame is supported by arms (18) extending radially and horizontally outwards, connecting it to a larger square frame at the same level, to which the wheels are attached.
Patent DE-2841369-A1 (DE)
Title: Fixing device screwing machine into packing piece - has slide inclined to piece wall forming deflecting ramp face
IPC: B31B50/00
Filed: 1978-09-22
Abstract: The machine screws fixing devices into the walls of packing pieces, these devices each consisting of a bolt with two washers spaced apart on it, the front one have a recess cut in the outer edge to form an insertion point. It has a slide (26) inclined at an angle (a) to the wall (7) of the packing piece when this is inserted in a holder and secured there. The slide forms a ramp face (27) deflecting the point (24) of the fixing device. The face can be formed on a lance punching a hole in the wall.
Patent DE-2842616-A1 (DE)
Title: Revolution counter for skipping rope - has drive shaft connected to rope and inserted into handle on end facing rope, to turn dial
Inventor: WOLF GERHARD
IPC: A63B5/20
Filed: 1978-09-29
Abstract: The skipping rope has handles (10) at each end, incorporating a counter (18) for the number of turns and measuring the number of revolutions or beats per unit of time. The counter has a drive shaft (20) connected to the rope, and is inserted into the handle on the end facing the rope. The counter is fixed by rings, or by a screw, pin or similar fixture crosswise to the axis of the handle. The handle has a transparent part through which a dial with figures on belonging to the counter is visible. The rope is fixed to the handle by a telescopic intermediate shaft, one end of which is fixed to a pivot shaft and the other end to a drive shaft.
Patent DE-2842709-A1 (DE)
Title: Horizontally sliding door - has weight acting in closing direction fitted with movement retarding device
Inventor: CLEFF HERBERT
IPC: E05F1/02
Filed: 1978-09-30
Abstract: The door assembly (12) consists of door leaf (13) suspended by rollers (14) on an extended rail (11). One of the anchorages (16) of rollers (14) have the end of cable (17) attached and led over deviating roller (18) to loose roller (39) on which tensioning weight (41) is suspended. The cable (17) forms a loop (18) over the tensioning roller and is led further over fixed roller (42) and further loop (19) over loose roller (22) on which closing weight (24) is attached. The end of the loop (19) is attached to a fixed point (21) by an inserted length of spiral spring (20). To the axle of the loose roller (22) chain (25) is attached led over stationary roller (26) with other end attached to electromagnet (28) working together with compensating weight (27). The electromagnet is supplied by current from source (30) via loop (32) with inserted fire fuse (35). When it melts, electromagnet is detached from compensating weight (27) and closing weight (24) has full effect to close the door.
Patent DE-2845138-A1 (DE)
Title: Mechanical saw unit with vertical blade guidance - cutting pressure for blade is generated by drive height
Inventor: KNOBLOCH ADOLF
IPC: B23D49/04
Filed: 1978-10-17
Abstract: The saw unit guides the saw blade vertically and sets the saw blade vertical to the workpiece chucking face on termination of the saw cut. The pivotable saw unit is so supported that the cutter pressure for the saw blade is generated by the weight of the drive unit (1). Once there is sufficient cutting pressure for rapid advance of the saw, the cutting pressure is so limited that the saw blade does not cut. Simple hand saw blades can be used on the machine without breakage. There is a guidance system for the saw blade. Systems ensure that neither dust, chippings, or spray water damage the guide (4). In each stroke, the guide is supplied with lubricant to ensure long life.
Patent DE-2845382-A1 (DE)
Title: Sterile fluid transfer device e.g. for culture nutrient solns. - with ball valve steam-sterilised inside and outside of ball
Inventor: HOISS JAKOB DR ING
IPC: B65B55/14
Filed: 1978-10-18
Abstract: A sterile fluid transfer device, such as for the nutrient solutions (agar-agar) for microbiological cultures, includes a ball valve with a hose tailpiece on one end of the ball for the attachment of a filler hose. Steam for sterilisation can be admited both through the valve ball bore and between ball and housing. The transfer device and its valve have a simple geometry and allow a steam sterilisation of all parts, including the connection for the filler hose. A simple and effective sterilisation is ensured.
Patent DE-2848075-A1 (DE)
Title: Air cooled compressed gas cooling radiator - has capillary tubes with condensing sections outside gas vessel
Inventor: KASSAT HARRY DIPL ING
IPC: F28D15/04
Filed: 1978-11-06
Abstract: The radiator comprises a nest of parallel elongate heat exchange tubes in contact with the gas and the ambient cooling air. The gas flows freely through a vessel (1) between an inlet (2) and outlet branch (31) both sealed off from the ambient air. Each heat exchange tube is of capillary type, its vaporising section (4a) extending inside the vessel while its condensing section (4b) passes through the gas-tight seal in the vessel wall to the outside, where it is in contact with the cooling air. The heat exchange tubes preferably extend vertically in the upright standing vessel. The outer tube sections may be ribbed.
Patent DE-2852995-A1 (DE)
Title: Child's seat restraining strap fitting - has end connector(s) which can be inserted on seat belt at right angles to its longitudinal direction
Inventor: HOFMANN GERHARD
IPC: B60R22/02
Filed: 1978-12-07
Abstract: The connector for restraining straps on chold seats is fitted to both ends of webbing (10) threaded through a channel provided laterally on the rear corner part of a bucket seat (2). The webbing enters the corner between the base part (6) and backrest part (7) of seat through diagonal slot (8), and reappears on the opposite side of the seat. The two ends of the webbing are provided with end connectors (11, 12) of oblong shape with a lateral slot at one end, by which the connector is permanently fixed to the respective end of the webbing. The rest of the oblong shape is divided by open slits into several prongs which can be slid onto the edge of the webbing in such a way that the webbing is threaded between the individual prongs in a weaving pattern.
Patent DE-2854442-A1 (DE)
Inventor: LEWALTER JUERGEN DIPL CHEM DR
IPC: H01B3/30
Filed: 1978-12-16
Abstract: A process for the production of compounds containing hydantoin groups by reacting  alpha -amino-carboxylic acid derivatives and organic isocyanates in the presence of acid groups and either in absence of any solvent or in the presence of a non-phenolic solvent.
Patent DE-2856478-A1 (DE)
Title: Radio remote controlled toy - has transmitter with short distance range, whose signal is amplified and modulated to actuate DC motor
Inventor: TSUKUDA MITSUO
IPC: A63H30/04
Filed: 1978-12-28
Abstract: The transmitter has an effective range of 2 to 3 m and its signal is amplified, and modulated with a low frequency square wave signal by an energy supply obtained by the closure of a switch (14). The wireless control also includes a receiver with a receiver circuit section comprising a feedback system and a forwards-backwards switching control, of such design that a direct current motor rotates forwards when no signal is received, while when a signal is received the motor rotates backwards. Preferably the transmitter contains an astable multivibrator (12), generating a low frequency square wave signal, as well as a quartz crystal oscillator (10), intermittently controlled by this signal. The multivibrator signal may have a frequency of 100 Hz. The oscillator frequency may be 27.125 Hz. The oscillator and multivibrator may be driven by a 3V battery.
Patent DE-2903572-A1 (DE)
Title: Three=phase electric motor reversing circuit - employs two pole switch for each winding, for short circuiting during changeover
Inventor: SCHWARZWAELDER ULRICH ING GRAD
IPC: H02P23/24
Filed: 1979-01-31
Abstract: The reversing circuit for a three phase electric motor operates so that after disconnecting the motor windings from the power supply connections corresponding to one direction of rotation and before connecting them for the other direction, at least one section of the motor windings is short circuited. Each section of the windings incorporates a switch or a switch contact forming part of a bridging over current path. When the winding section is short circuited, a two pole protective switch can be used. The combined switching arrangement can be formed as a three pole switch. The switching sequence can be carried out in an overlapping manner, and the closing angle can be adjusted. Main and auxiliary windings can be short circuited by a capacitor.
Patent DE-2907256-A1 (DE)
Title: Deep hole forming tool using plastic deformation - has rotatable bit on axle inclined to axis of support shaft and defining imaginary sphere
Inventor: GIK LEV ARONOVITSCH
IPC: B24B39/02
Filed: 1979-02-24
Abstract: The appts. is used to machine deep holes in metal pieces by a process of plastic deformation. The tool has a rotatable bit (1) mounted on an axle (4) projecting from the end of a shaft (5), the axle being inclined to the axis of the shaft and the active surface of the bit defining an imaginary sphere. The active surface may comprise elements projecting from the general surface, being arranged in plane sections angled to the axis of the head. The elements may be arranged to form a helicoidal line, being rigidly or elastically mounted on the head. Alternatively the active surface may be smooth band defining an imaginary sphere, or may comprise a series of independently rotatable discs (11). The head mounting may permit its radial displacement relative to the shaft.
Patent DE-2912082-A1 (DE)
Title: Combustion equipment operating substantially stoichiometrically - has switched incandescent body in flow from mixing chamber as igniter
Inventor: GRAAT JOHANNES WILHELMUS
IPC: F23Q7/08
Filed: 1979-03-27
Abstract: The combustion equipment operating substantially stoichiometrically mixes liq. fuel and air, with the air coefficient lying between 0.8 and 1.2 in a mixing-cum-atomising chamber working on the cyclone principle. The mixture flows from this chamber (43) into a substantially wider one (63). Ignition is achieved by means of a switched incandescent body mounted near the wider chamber front wall, in the mixture stream. Igniter material is pref ceramic, or scaling-resistant alloy formed into a wire helix (70); electrically heated. The helix pref. forms a 30 deg. - 330 deg. arc hanging below the mixing chamber outlet, 5 - 30 mm downstream from it.
Patent DE-2916787-A1 (DE)
Title: Insecticidal and acaricidal amidino-phosphoric acid derivs. - prepd. by reacting N-methyl-N'-pyridyl-formamidine cpds. with (di)thiophosphoryl halide
Inventor: BOEGER MANFRED
IPC: A01N57/32
Filed: 1979-04-25
Abstract: New amidino-phosphoric acid derivs. are cpds. of formula (I): (where R1. R2, and R3 are H or CH3; R4 is CH3 or C2H5; R5 is 1-4C alkyl; and X is O or S.) (I) are broad-spectrum biocides active against a wide range of pests injurious to plants and animals, and can be used e.g. as acaricides, insecticides, ectoparasiticides and nematocides. (I) are esp. useful as insecticides and acaricides for use in plant protection. Tests show that (I) have systemic, contact and antifeedant action against various types of insects, e.g. aphids.
Patent DE-2917087-A1 (DE)
Title: Aliphatic carboxylic esp. formic acid esterification or amidation - and azeotropic distn. of water of condensn. using di:isopropyl ether as entrainer
Inventor: WERNER WOLFGANG DIPL CHEM DR
IPC: C07C69/08
Filed: 1979-04-27
Abstract: Diisopropyl ether is used as the entrainer for removing water of condensn. by azeotropic distn. in ester or amide prepn. by reacting aliphatic carboxylic acids, esp. HCOOH with a prim. or sec. monohydric or polyhydric alcohol, a prim. or sec. aromatic amine or an opt. substd. hydrazine. Formates slowly release bactericidally and fungicidally active HCOOH on skin. Formates of 14+C alcohols and of semi-solid or solid polyethylene glycols, and the esters of mono-, di or trichloroacetic acid, can be used to reestablish the acid protection of the skin after washing with alkaline soaps. Diisopropyl ether/water azeotrope boils at 61.4 degrees C, contains 3.6wt.% water and separates smoothly into 2 phases on condensn. Diisopropyl ether resists hydrolysis and is less toxic than CH2Cl2 used hitherto. Pure prods. can be obtd. in quantitative yields, even on using aq. or impure HCOOH.
Patent DE-2918636-A1 (DE)
Title: Circuitry with wide range HF tunable oscillating circuit - coupled via single capacity diode to gate of FET
Inventor: SCHURIG KURT
IPC: H03J3/18
Filed: 1979-05-09
Abstract: The circuitry is turnable over a wide frequency range-pref. between 105 MHz to 290 MHz - by means of capacitive diodes without switching over the circuit coils. It has a h.f. resonating circuit coupled to a transistor stage and adapted for t.v. receivers, esp. closed circuit tuners. The h.f. oscillating circuit (L1, D1) covers the full frequency range and is coupled via one and the same capacity diode (D2) to the gate (G1) of a f.e.t. (Tr1) or an equivalent section of the transistor stage. The f.e.t. can be a double m.o.s.f.e.t. It can be switched as a mixer amplifier in a multiplying mixing circuit.