baber/WOPTO huggingface dataset:
Patent DE-2738809-A1 (DE)
Title: Hydraulic or pneumatic piston seal - has rings formed by frusto=conical protrusions on cylindrical rubber block
Inventor: OTTO GUENTER
IPC: F16J15/3232
Filed: 1977-08-29
Abstract: The seal resists hydraulic and/or pneumatic pressure, being particularly for a gas-filled spring unit. A series of rubber rings act against the face to be sealed and are spaced apart. The rings (2) are formed by protrusions on the outside or inside of a cylindrical sealing block (1) with a central opening of rubber or similar material. The block has a frusto-conical section, the flanks forming V-section grooves in the block. In relation to a line perpendicular to the block surface, the flanks are at an angle of between 5 and 20 deg., pref. 15 deg.
Patent DE-2739315-A1 (DE)
Title: Benzoquinone di:ketal electrolytic prodn. - from benzene derivs. in methanolic electrolyte, using bipolar connected glassy carbon electrodes
Inventor: CRAMER JUERGEN DR
IPC: C25B3/23
Filed: 1977-09-01
Abstract: Prodn. of diketals of formula (I): (R=H, 1-4C alkyl or halo; R1=1-4C alkyl) comprises anodic oxidn. at -20 to 60 degrees C of benzene or a 1-R1O-(2- or 3-)R-benzene in methanol contg. 5 wt.% water; 0.2-15 wt.% (on the electrolyte) of >=1 conductivity salt (II) and opt. 0.5-10 wt.% (on the electrolyte) of a difficultly-oxidisable base, esp. 2,6-lutidine at pH >=7. Electrolysis is carried out using glassy carbon, bipolar connected electrodes coated on the cathode side with a material which reduces hydrogen overvoltage. (II) are of formula MQ or AxPh4-xZ+ Y-; M = NH4 or alkali metal; Q=F, ClO4, NO3, BF4, SiF6, PF6, benzenesulphonate or p-toluenesulphonate, each A is independently alkyl; x=1-4; Z is N or P, and Y is F or CH3SO4. (I) are converted by hydrolysis to quinones which are intermediates for photographic chemicals, monomer stabilisers, dye intermediates, etc. Bipolar connected electrodes increase space-time yields and by coating with a material to reduce overvoltage the current yield is as good as that in cells with unipolar connected electrodes.
Patent DE-2744114-A1 (DE)
Title: Storage FET modified to reduce waste - incorporates auxiliary zone, with additional channel and selection gate
Inventor: ROESSLER BERNWARD DIPL ING
IPC: G11C16/16
Filed: 1977-09-30
Abstract: The storage FET has the known structure modified to reduce waste. There is an auxiliary zone (HS) which is of the same doping as the source and drain. It is introduced between the source (S) and the drain (D) in series with the channel (K). Behind this auxiliary zone is a further channel (Ka) with an isolated selection gate (Ga2). The further channel is very much wider than the normal channel (K). A third gate is used as a control gate (G2). The presence of this gate is optional and if present it acts capacitively on the storage gate (G1).
Patent DE-2748382-A1 (DE)
Title: Slicer for foodstuffs - has carriage moving to=and=fro past rotary cutter with guides and hollow cylindrical polyethylene buffer
Inventor: SCHARFEN HERMANN
IPC: B26D7/06
Filed: 1977-10-28
Abstract: Slicer for meat, cheese, bread, etc. has sledge carrying the merchandise to be sliced, reciprocating in 2 guidances past a rotary cutter and comprising a base and a firmly connected arm which is guided by a guide rod and reaches laterally around the machine body. The guide rod extends in the direction of the reciprocating movement and doubles as part of the 1st of the guidances. The 2nd guidance has a guide rail extending beside the guide rod, also in direction of the reciprocating motion. The 2nd guidance has a stop block arranged in such a way that the sledge bears during its to-and-fro movement under its own wt. against the stop block, the latter being under horizontal load from the guide tail. The stop block is a rotary, hollow cylinder made of high molecular polyethylene.
Patent DE-2749713-A1 (DE)
Title: Automatic intruder resistant roller shutter lock - has bottom hinge unit sliding outward on meeting top one
Inventor: SUK JURAJ
IPC: E06B9/86
Filed: 1977-11-07
Abstract: On a roller shutter with light slit profiles in it, the automatic security device is for prevention of unwarranted raising from outside, and can be mass-produced and subsequently fitted by the owner without skilled labour. A bottom hinge piece on the locking unit pushes against a fixed top hinge piece and slides outwards. In doing this it can lock in position in holes in the shutter guideway, it may be automatically released when the shutter is raised from the inside. Slats are not weakend in any way, and the dia. of the rolled-up shutter is not increased.
Patent DE-2754073-A1 (DE)
Title: Printed circuit assembly system - puts kink in component wires after insertion into board to prevent component falling out
Inventor: LEMMER ALFRED
IPC: H05K13/00
Filed: 1977-12-05
Abstract: The bench at which electronic components are mounted onto a p.c. board has provision for bending the component wires projecting from beneath the board after they have been inserted to prevent the components falling out during subsequent processing, e.g. cutting to length, soldering. The bends consist of kinks pressed radially into the wires and are formed in the wires in one component before the next componet is inserted into the board. Alternatively, the bends may be formed simultaneously in the wires of a group of components before the next group is inserted.
Patent DE-2757091-A1 (DE)
Title: Monolithic combination of two complementary bipolar transistors - made by repeated masking and doping of silicon substrate, used in complex integrated circuits
Inventor: KALB ALBERT DR
IPC: H01L21/8226
Filed: 1977-12-21
Abstract: The device contains a vertical transistor (T1) and a lateral transistor (T2), and is made starting from a p-type Si semiconductor substrate (1) contg. buried n+ layers (1a) below a base zone (2) for transistor (T2). Doping masks made of Si3N4 and/or Al2O3, contg. windows, are used to surround the transistors with an insulating trench (8, 8a) filled with SiO2; and to form an emitter zone (5) and collector zone (3) for transistor (T2). An n-doped epitaxial layer is formed outside trench (8); and the base zone (3a) of transistor (T1) has weaker doping than zones (3, 5). A third doping process is used to produce another rectifying junction between a part (A) of the substrate surface and the junction between zones (2, 3a). The collector zone (4) of transistor (T1) is pref. created from zone (2). Used in the mfr. of complex integrated circuits using I2L (integrated injection logic) for memories.
Patent DE-2757993-A1 (DE)
Title: Printing machine ink ribbon cassette - has guide arms coupled by web to provide protection for type mechanism against paper and ink particles
Inventor: BEHRENDT WOLFGANG
IPC: B41J35/10
Filed: 1977-12-24
Abstract: A web (13) located below the free region of the ink ribbon which runs between the two guide arms, couples the arms (5) together. The web is pref. a U-shaped channel and comprises a plate (8) extending between the arms up to the cassette housing (4). There is a slit (9) through which passes the disc-shaped type carrier (2). The two arms, the web or the plate can together be swivelled realtive to the housing (4) by a necked-down hinge (10) on each guide arm. The type carrier is e.g. a daisy wheel.
Patent DE-2758192-A1 (DE)
Inventor: REISACHER RAIMUND DIPL ING
IPC: G21C13/036
Filed: 1977-12-27
Abstract: The heater rod penetration comprises at least one electrical heater rod (4) which projects with one heater rod part (4b) into the interior of the vessel and which is arranged projecting through a through bore (3) of the vessel wall (2, 1) at the bottom end with an unheated rod part (4a) of the supply leads which accommodates the electric supply leads (4.1, 4.2). The heater rod (4) is surrounded by a through pipe (6) with an annular gap (7), at least on its axial length situated in the region of the through bore (3), the through pipe (6) being sealingly connected to the vessel wall (2, 1) and the heater rod (4) being sealingly connected to the through pipe (6). The annular gap (7) is open towards the vessel interior, whereas it is closed at its other end (7b) by the sealing connection between the heater rod (4) and through pipe (6). The annular gap is divided by means of a sleeve-shaped partition (10) into two essentially co-axial spaces which communicate with one another by means of throughflow openings (13) in the partition which are arranged in the region of the closed end of the annular gap, and form an outer downcomer (11) and an inner riser (12), bearing against the heater tube, for the medium. <IMAGE>
Patent DE-2800849-A1 (DE)
Title: Cyanide-free alkaline zinc electroplating baths - contg. post-reacted reaction prods. of epihalohydrin with nitrogen cpd.
Inventor: ACIMOVIC SIMEON DIPL ING
IPC: C25D3/22
Filed: 1978-01-10
Abstract: Zinc electroplating baths contain a Zn salt, an alkaline cpd an epihalohydrin reaction prod. (I), and conventional additives. Specifically, (I) is a prod. obtd. by reacting (a) the 1:1 reaction prod. of an epihalohydrin with >=1 N cpds. contg. >=2 reactive N atoms, with an equimolar amt. of either (b) the 1:1 reaction prod. of an epihalohydrin with >=1 alcohol and/or carboxylic acids or (c) a pyridine cpd. opt. substd. by 1-3 Me or Et gps. and/or 1-3 COOH gps. or their salts. The baths can be used to produce Zn coatings with a thickness of up to 40 mu which are bright and can be annealed without embrittlement or spalling.
Patent DE-2802900-A1 (DE)
Title: Diaphragm pump with reciprocating crank actuator - has pressure die cast cylinder head with integrally formed valve and diaphragm seats
Inventor: BECKER ERICH
IPC: F04B39/10
Filed: 1978-01-24
Abstract: The diaphragm pump has cylinder head with fastening seats for valves and a spherical seat for the reciprocating diaphragm. The pump diaphragm is actuated by a connecting rod with one end mounted on a crank pin. The cylinder head (2) is made as a pressure die cast component. Fastening seats for valves (14, 30) of the inlet and outlet channels (11, 12) are integrally made into the cylinder head. The spherical seat on diaphragm side is also produced by the mould on pressure die casting.
Patent DE-2812150-A1 (DE)
Title: Drive for manure clearing implement - has gear motor at each end of channel, with tension cables from winch drums coupled to scrap or blade
Inventor: HORB JOHANN
IPC: A01K1/01
Filed: 1978-03-20
Abstract: The drive is for a manure cleaning implement which is pulled by a tension cable from one end of a cleaning section to the other and back. The cleaning implement is firmly coupled to the tension cable. At both ends of the cleaning area is a gear motor with a cable drum to wind up and play out the cable. The cable is passed in the same direction of rotation as the drum or can be contra-rotated. To change over there is a control common to both drives and there is a switch at each end of the cleaning section.
Patent DE-2814365-A1 (DE)
Title: Catalyst for acetic acid, ethanol and acetaldehyde mfr. - from synthesis gas, consists of rhodium on support with co-catalyst of magnesium cpd. and halide ions
Inventor: SCHMIDT HANS-JOACHIM DIPL CHEM
IPC: C07C51/10
Filed: 1978-04-04
Abstract: Rh catalyst for the prodn. of acetic acid, ethanol, acetaldehyde and opt. sec. prods. by the reaction of CO with H2 consists of a Rh salt or complex in a valency state below 3, halide (Cl) ions and, as cocatalyst, Mg in the form of salts or complex cpds., on a support. The cocatalysts improve the activity and/or selectivity and hence the economy of the process.
Patent DE-2815137-A1 (DE)
Title: Automatic tap-hole shutter for vacuum casting ladle - has isotope radiation source facing receiver across ladle discharge pipe
Inventor: GRUNER HANS ING GRAD
IPC: B22D2/00
Filed: 1978-04-06
Abstract: The Parent Patent described a photoelectric device for the automatic closure of a taphole in a vacuum casting ladle when the melt had come to an end. To prevent errors caused by dust deposition and fumes under steelworks conditions, the optical system has been replaced by an isotopic radiation system. An isotope is mounted on one side of the pouring tube and a receiver on the opposite side. The receiver passes an output signal to a control unit which actuates a hydraulic shutter when the metal flow has come to an end.
Patent DE-2820025-A1 (DE)
Title: Steplessly adjustable transmission unit - has output epicyclic gear train running idle with input one retroactively coupled
Inventor: JARCHOW FRIEDRICH PROF DR ING
IPC: F16H47/04
Filed: 1978-05-08
Abstract: The steplessly adjustable transmission unit has a three-shaft epicyclic gear train on the input side. When this is retroactively coupled typically by a hydrostatic transmission system, the output side three-shaft epicyclic train runs idle with it. Power is transmitted via a two-speed layshaft with gears (10, 9, 39, 40) selected by means of a clutch (41).
Patent DE-2832326-A1 (DE)
Title: Attachment crane for haulage vehicle carrying cattle - has horizontally sliding grab bars within channels and weighing scales for suspended loads
Inventor: BANNAS PETER
IPC: B66C1/22
Filed: 1978-07-22
Abstract: The attachment crane is used on road haulage vehicles or on trailers for loading and unloading of cages holding cattle. The lifting crane lifts cattle carefully and also weighs them on lifting. The load picking up grab has horizontally sliding bars with hook ends. This grab is suspended from weighing scales for weighing suspended loads. The weighing scales are fitted between the horizontal bar connection and the connector with the crane. The connection is made via a rotating servo system. The horizontal grab bars slide within hollow horizontal profiles acting as guides and supports.
Patent DE-2832604-A1 (DE)
Inventor: EDER ULRICH DR
IPC: C07C49/623
Filed: 1978-07-21
Abstract: For the Contracting States : BE, CH, DE, FR, GB, IT, LU, NL, SE 1.) 7alpha-methyl oestrogens of the general formula I  see diagramm : EP0007516,P7,F1  in which R1  and R2  denote lower alkyl groups, X denotes a free or functionally protected hydroxymethylene group and Z denotes a hydrogen atom or an OR1  group. For the Contracting State : AT 1.) Process for the manufacture of compounds of the general formula I,  see diagramm : EP0007516,P8,F1  in which R1  and R2 denote lower alkyl groups, X denotes a free or functionally protected hydroxymethylene group and Z denotes a hydrogen atom or an OR1 group, characterized in that, in a manner known per se, a) a compound of the general formula II  see diagramm : EP0007516,P8,F2  in which R1  and Z have the meanings given above and R3 denotes a lower alkyl group or an optionally substituted aryl group, is reacted, in the presence of a deprotonating agent, with a compound of the general formula III  see diagramm : EP0007516,P8,F3  in which X and R2  have the meanings given above, a compound of the general formula IV being obtained  see diagramm : EP0007516,P8,F4  in which R1 , R2 , Z and X have the meanings given above ; b) the compound of the general formula IV is hydrogenated with a noble metal catalyst to form a compound of the general formula V  see diagramm : EP0007516,P8,F5  in which R1 , R2 , Z and X have the meanings given above and c) the hydrogenation product of the general formula V, optionally after the addition of an oxidising agent, is subjected to equilibration and cyclisation and optionally protecting groups are split off.
Patent DE-2839868-A1 (DE)
Inventor: BRODER ANTON
IPC: E21B10/38
Filed: 1978-09-13
Abstract: The drill bit (10) has reaming jaws (13) which can be displaced to the outside and are displaced to the inside again after the drilling in order to enable the drill bit to be pulled out through the lining tube (33). Provided for each reaming jaw (13) is a chamber (19) which is connected to the drilling-water passage (23) so that the reaming jaws (13) can be put into the working position by the pressure of the drilling water. When the reaming jaws (13) are extended, each creates an opening (29), from which the drilling water can escape. This drill bit is especially suitable for overburden bores with lining tubes, for deep bores in rock and for well bores. <IMAGE>
Patent DE-2840345-A1 (DE)
Title: Telephone exchange with reduced connection time - assigned to line groups for connecting to translator
Inventor: RENGER WOLFGANG
IPC: H04Q3/42
Filed: 1978-09-15
Abstract: The telephone exchange has a given number of lines grouped into a group. Each group shares registers fewer in number than the given number of lines. A control device interrogates the registers via a single line to discover whether they are engaged or not. Both this interrogation and the switch-through between the register device and the translator take place in conjunction with a clocked selection device. The last step of this selection device is stored to allow resetting when one of the fault signals fails.
Patent DE-2853628-A1 (DE)
Title: Breathalyser with validity checking of measured alcohol concentration - prevents falsification by irregular breathing, detects variations in measured concentration with time and adjusts counter circuit
Inventor: TERVEEN AXEL DIPL ING
IPC: G01N33/497
Filed: 1978-12-12
Abstract: The breathalyser compares a signal corresponding to the detected alcohol conc. with a threshold value and provides a signal indicating the validity of the measurement signal in dependence on this threshold value. The latter is increased by a given amount when the measured signal exceeds the threshold and the validity signal provided when the measured signal remains under this increased threshold for a given time interval and at least one such time interval has elapsed. Pref the comparator (3) for the measured signal and the threshold value controls the circuit (5, 11) supplying the latter, with a timing stage (13) activated upon the threshold being raised. A counter (19) indexed by the timing stage (13) provides the validity signal after a given number of court steps.
Patent DE-2903062-A1 (DE)
Title: Digital control raster scanner - has laser writing head with different spacings for each colour
Inventor: BOSSE ROLF DIPL ING DR
IPC: H04N1/52
Filed: 1979-01-26
Abstract: The electronic screen control uses a digital pattern with each colour processed separately and with a laser writing head for each colour. The colours are projected at different angles with different screen pitches to reduce Moire effects. The base raster has a set spacing w.r.t. the laser scan spacing while the other colours have spacings which differ from a set number of laser scan lines with a repeat pattern of about seven dots. The spacing is typically 60 lines/cm and the screen angles 0 deg. for yellow, 45 deg. for black, - 15 deg. for magenta and +15 deg. for cyan.
Patent DE-2911913-A1 (DE)
Inventor: HEIDTMANN UWE ING GRAD
IPC: F24S10/50
Filed: 1979-03-27
Abstract: 1. Heat exchanger for receiving surrounding heat with through-flow ducts (14) for a heat carrier which lead into collecting ducts (16), the ducts (14, 16) being constructed between two approximately rectangular plates which comprise ductless edge strips (28) on two opposite edges, characterized in that the edge strips (28) are provided with bent portions (30) in a known manner and in that at least that region (20) of the plates (10, 12), which contains the through-flow ducts, is provided with common projections (24, 44, 46) extending transverse to the bent portions (30) of both plates (10, 12) together with enclosed through-flow ducts (14).
Patent DE-2912882-A1 (DE)
Title: Two=part cable termination divisible into separate segments - each fitted to respective cable conductor allowing machine assembly
Inventor: CUVELIER ROLAND ING GRAD
IPC: H01R4/24
Filed: 1979-03-30
Abstract: The termination comprises an insulating block, with interfitting upper and lower sections (1, 2), each divided into a number of separable adjacent segments, with a respective cable conductor received by each segment. The cable conductor is pushed through a bore in the upper section (2) of the segment, with the lower section (1) containing a forked connection element (3), automatically engaging the cable conductor when the two sections (1, 2) are fitted together. The upper segments are joined together in a line via vertical joining struts of min. thickness, while the lower segments are joined together via horizontal joining struts (14) of min. thickness, the two different struts lying in a common plane. The upper segments may be approx., cylindrical, while the lower segments are rectangular.
Patent DE-2915188-A1 (DE)
Inventor: ALT DIETER DIPL CHEM
IPC: C08K5/00
Filed: 1979-04-10
Abstract: 1. Multi-strand synthetic resin-insulated and synthetic resin-coated electrical or optical cable comprising an extruded inner sheath which is made of a halogen-free polymer containing additives, arranged between the twisted strands and the outer sheath, characterised in that the polymeric material of the inner sheath consists of an ethylene-vinyl acetate copolymer and contains as additives : a) a filler having a large number of esterifiable hydroxyl groups in an amount of 10 to 50% by weight, b) a catalyst which splits off acid on combustion also in an amount of 10 to 50% by weight, and c) a nitrogenous propellant for expanding the inner sheath under the influence of heat in an amount of 1 to 20% by weight.
Patent DE-2917744-A1 (DE)
IPC: A01D78/12
Filed: 1979-05-02
Abstract: The haymaking machine is provided with a central adjusting device. The raking wheel (140) drivable in rotation about a vertical upright shaft (2) has a wheel hub (204) with radially projecting tine carriers (201) which are rotatable about their longitudinal axis by means of control levers (37, 38) and which carry raking tines at their free end. The control levers (37, 38) at the ends of the tine carriers (201) directed towards the upright shaft (2) can be controlled positively between a first control path (163) and a guide path (230) assigned to the latter. By means of a second control path (216) which is lowered for tedding and turning, the tine carriers (201) are shifted into a fixed position, in which the raking tines are directed rigidly relative to the ground. <IMAGE>
Patent DE-2931109-A1 (DE)
Title: Moving microfilm print mechanism - has printing roller with rotary support wheel with automatically variable support radius
Inventor: RAUFFER WALTER
IPC: B26D7/26
Filed: 1979-07-31
Abstract: The printing mechanism is for use in a machine for printing continuously moving microfilm strip. It has a printing roller bearing against a guide surface of the documents to be printed, and lifted clear of this surface as desired. Intermediate support rollers may be incorporated. The printing roller (13) turns with support wheel (12) bearing against the guide surface (2), the working radius of this wheel being adjustable. A system is provided (14-17) to alter the radius automatically, dependent on whether or not items (1) are present near the printing mechanism. The support wheel can have an elastic tyre whose periphery may be increased by exertion of a force.
Patent DE-2933084-A1 (DE)
Title: Pressure control for air compressor - has inlet line contg. two-position valve pilot operated to close via receiver pressure operated valve
Inventor: JENNER KLAUS
IPC: F04B49/02
Filed: 1979-08-16
Abstract: The compressed air installation comprises an air compressor (1) connected to a storage vessel. A pressure-operated valve (4) has a throttle bypass (5) in the inlet line (2',2) to control the compressor output as a function of the air demand. A pressure-operated valve (8) controls the pilot pressure to the valve (4), a safety and idling vent valve (9) also being provided. The valve is of two-position type, pilot-operated to close by pressure at the storage vessel admitted via the valve (8). This is itself pilot-operated to open by the storage vessel pressure when that pressure exceeds a given level.