baber/WOPTO huggingface dataset:
Patent GB-986539-A (GB)
Title: A method for very accurately measuring the length and for the tension of a filament during unwinding at very high speeds and with abrupt accelerations
IPC: B65H61/00
Filed: 1962-10-24
Abstract: 986, 539. Measuring length of filaments. SOBREVIN SOC. DE BREVETS INDUSTRIELS ETABLISSEMENT. Oct. 24, 1962 [Oct. 31, 1961; Aug. 11, 1962], No. 40310/62. Heading G1M. A device for measuring the length and adjusting the tension of a filament comprises a pulley 1 rotated at a tangential speed approximating to that at which filament 3 is moving. The filament is supplied tangentially to the pulley and leaves it, at 3<SP>111</SP>, in an axial direction, passing under a resilient member 4. The device adjusts the tension of the filament and the revolutions of the pulley, counted by member 2, are a measure of the length of the filament. A photo-electric cell 6, or a photo-transister, receiving light through a transparent part of pulley 1 from a source 5 is provided to retard the pulley if the stock 3<SP>11</SP> of filament thereon exceeds a desired limit or to accelerate the pulley if the stock 3<SP>11</SP> is low.
Patent GB-1067542-A (GB)
Title: Insulating coating for electrical conductors
IPC: H01B13/06
Filed: 1963-10-14
Abstract: A method for producing insulating coatings on electrical conductors comprises covering the conductors with a solution of a hardenable polyesterimide derived from aromatic polycarboxylic acids with at least one pair of carboxyl groups in ortho-position to each other, di-and/or tri-hydric alcohols and diamines, if desired with the addition of hardening catalysts, and heating the coated conductors to a temperature of the order of 400 DEG C., wherein the polyesterimides contain, for every 10 equivalents of polycarboxylic acid residues, 5 to 16 residues of di-and/or trihydric alcohol residues and 5.5 to 0.5 equivalents of primary diamine, amino acid or hydroxyamine residues, and wherein for every 10 difunctional residues there are 4 to 20 preferably 6 to 5 polyfunctional radicals.  The polyesterimides may also contain chemically bonded titanium or zirconium atoms.  The examples disclose the coating of copper wire on a horizontal wire coating machine.
Patent GB-1127627-A (GB)
Title: Improvements in or relating to circuit arrangements for regulating the dynamic range of electrical signals
IPC: H03G7/06
Filed: 1965-09-23
Abstract: 1,127,627. Nonlinear circuits. SIEMENS A.G. 23 Sept., 1965 [24 Sept., 1964], No. 40527/65. Heading G4G. Non-linear circuit includes a four terminal network, one arm of which includes a control network having two inductively coupled parallel arms at least one of which contains a series connected non-linear impedance, e.g. a diode, and in which the signal appearing at the input terminals or the output terminals is applied across the inductive coupling element in one of the parallel arms so that the control network injects a dynamically modified signal into the four terminal network. Fig. 6 shows a forward control compressor or expander in which the control network includes resistors R 1  and R 2 , one of which is non-linear, connected in series with the respective inductively coupled elements in a parallel circuit between points B<SP>1</SP> and C<SP>1</SP>. Across one inductive element is applied the input signal via a cathode follower so that a voltage Ue.e-<SP>a</SP> is developed across the points B<SP>1</SP>C<SP>1</SP>, to be combined with the input voltage Ue, to provide the output voltage Ua to the output transformer U 2 . The function e<SP>-a</SP> is shown to be so that the circuit operates as a compressor if, with increase in signal applied to the network, R 2  decreases and R 1  remains constant, and as an expander if R 1  decreases and R 2  remains constant. In a backward controlled circuit the connections A<SP>1</SP>B<SP>1</SP> and C<SP>1</SP>D<SP>1</SP> of Fig. 6 are broken and connections made A<SP>1</SP>C<SP>1</SP> and B<SP>1</SP>D<SP>1</SP> so that the cathode follower is fed with the output signal and the voltage developed across the non-linear network combined with the input. In a modification of Fig. 6, incorporating the backward control connections set out above, the transformer U 2  is replaced by a cathode follower which allows the lower winding of transformer U 1 , and the balancing network R n  to be omitted, Fig. 7 (not shown). A further modification, Fig. 8, includes an extra winding on transformer U 1  to feed, via cathode follower Rol, the non-linear circuit. The reciprocal circuit may be provided by exchanging the positions of R 1  and R 2  by links A<SP>11</SP>, B<SP>11</SP>, C<SP>11</SP>, D<SP>11</SP>. An equivalent circuit to Fig. 6, but which employs transistors operating on current rather than voltage, is described relative to Fig. 9 (not shown).
Patent GB-1437129-A (GB)
Title: Method and apparatus for imparting to headphones the sound- reproducing characteristics of loudspeakers
IPC: H04S1/00
Filed: 1973-08-29
Abstract: 1437129 Simulating loud-speaker reproduction using earphones; stereophonic systems EUGEN BEYER GmbH [trading as EUGEN BEYER ELEKTROTECHNISCHE FABRIK] 29 Aug 1973 [8 Sept 1972] 40675/73 Headings H4J and H4R Signals for reproduction by a loud-speaker arrangement are applied to a network having amplitude and phase characteristics which give a listener using headphones the impression that he is listening to loud-speaker reproduction. Monaural, stereophonic or quadraphonic signals may be processed. However, the network cannot take account of movement of the listener's head. An electroacoustical transfer function A m (f), in a monaural arrangement, determines the relationship existing between an electrical voltage signal normally applied to a loudspeaker and a resulting signal pressure imping- ing upon an eardrum of a listener to the loud-speaker. A further electroacoustical transfer function A k (f) is equal to the ratio of the Fourier transforms of the driving voltage applied to the earphone pieces and the output signal pressures impinging upon an eardrum of the listener. The earphone is assumed to be a linear system. A circuit X (Fig. 5) having the characteristics of a transfer function A m (f)/ A k (f) has its output connected at points B and B<SP>1</SP> to two earphones (transfer functions A k (f)) and the pressure on the left and right eardrums is P TRl (f) and P TRr (f) when an audio electrical signal U 1 (f) is applied to the input of the circuit X, thereby simulating loud-speaker reproduction. In a stereophonic system where the sound reproducing characteristics to be simulated are those of a pair of loud-speakers (L 1 ) and (L 2 ), Fig. 6 (not shown), disposed symmetrically with respect to the listener's head, two pairs of identical transfer functions A s (f) and A e (f) take into account the fact that sound waves from the left loud-speaker (L 1 ) reach not only the left eardrum but also the right eardrum, and vice versa with respect to the right loudspeaker (L 2 ). Fig. 8 depicts a circuit arrangement for imparting to an earphone set up the overall electroacoustical transducer transfer functions of the arrangement. A k (f) again identifies the electroacoustic transfer function of the earphone set, the earphones being connected at points B and B<SP>1</SP>. A third embodiment (Fig. 9) for imparting to a pair of earphones the sound reproducing characteristics of four loud-speakers disposed symmetrically with respect to the head of a listener, is an elaboration of the two previous embodiments, but two additional summing circuits S 3  and S 4  take into account the fact that each ear receives signals from all four loudspeakers.
Patent GB-1124285-A (GB)
Title: Novel perhydro-1,2,4-thiadiazine dioxides-(1,1), their preparation and compositionscontaining them
Inventor: PFIRRMANN ROLF WILHELM
IPC: C07D487/22
Filed: 1964-10-06
Abstract: Novel perhydro - 1,2,4 - thiadiazine dioxides -(1,1) of general formulae <FORM:1124285/C2/1> wherein each of R1 and R2, which may be the same or different, is a hydrogen atom, an alkyl group having 1-8 carbon atoms, a cycloalkyl group, an aralkyl group, an aryl group, or a methylene group attached to a nitrogen atom of another perhydrothiadiazine dioxide nucleus, or where together with the perhydrothiadiazine dioxide ring, to which they are attached, form a ring of perhydrothiadiazine dioxide nuclei separated by methylene groups joining nitrogen atoms of different nuclei, R1 and R2 may also have substituents such as halogen, esterified carboxy or dialkylamino, and the physiologically acceptable acid addition salts thereof, are prepared by ring closure of a taurine amide of general formula (IV) R3-NH-CH2-CH2-SO2-NH-R4 in which R3 and R4 represent hydrogen atoms, alkyl groups having 1-8 carbon atoms, cycloalkyl groups, aralkyl or alkyl groups, or of an acid addition salt thereof, by reaction with formaldehyde or a substance liberating formaldehyde. Compounds of the first general formula above are also obtained by catalytic hydrogenation in the presence of a platinum oxide catalyst, of compounds wherein the perhydro - 1,2,4 - thiadiazine dioxide ring is joined to a similar ring by a methylene group attached to the 4-position of each ring.  Pharmaceutical compositions having bactericidal and fungicidal activity and which may be administered orally or topically in the form of tablets, dragees, capsules, lozenges, suppositories, ampoules for injection, syrups, linctuses, ointments, lotions, pastes, solutions, or aerosol sprays, contain a compound of the first general formula above or a physiologically acceptable acid addition salt thereof, as the active ingredient. Taurine amides of the formula R3NHCH2CH2SO2NHR4 wherein R1 and R2 have the above significance, are prepared by reacting CH2 = CHSO2NHR1 with ammonia or a primary amide, or by reacting the phthalimido derivative of an acid halide of taurine with a primary amine and removing th phthalyl group in the product.
Patent GB-1339142-A (GB)
Title: Process for producing emulsified fats
IPC: A21D2/16
Filed: 1971-09-01
Abstract: 1339142 Emulsified fat compositions KAO SOAP CO Ltd 1 Sept 1971 [2 Sept 1970] 40744/71 Heading A2B An edible fat composition comprising by weight (a) 20-45 parts edible oil or fat; (b) 0.1-1 parts lecithin; (c) 2-10 parts glycerol fatty acid ester; (d) 2-10 parts propylene glycol fatty acid ester; (e) 0.4-5 parts sorbitan fatty acid ester; (f) 0.5-10 parts sucrose fatty acid ester and/or polyglycerol fatty acid ester and/or polyoxyethylene sorbitan fatty acid ester; (g) 0.5-10 parts ethyl alcohol and/or propylene glycol and/or glycerol; (h) 40-70 parts 30-70% aqueous sorbitol and/or invert sugar solution and/or corn syrup and/or honey suitable for use in making sponge cakes is prepared by heating a mixture of (a), (b), (c). (d) and (e) to above 60‹C to obtain a first homogeneous phase, heating a mixture of (f) and (g) to form a second phase, and either mixing the first and second phases and thereafter stirring with (h) to obtain an emulsion which is quickly cooled and kneaded, or dissolving the second phase in (h) and then stirring together with the first phase to obtain a homogeneous emulsion which is quickly cooled and kneaded.
Patent GB-863921-A (GB)
Title: Improvements relating to the rotors of dynamoelectric machines
IPC: H02K3/22
Filed: 1958-12-17
Abstract: 863,921. Cooling dynamo-electric machine coils. GENERAL ELECTRIC CO. Dec. 17, 1958 [Dec. 18, 1957], No. 40783/58. Class 35. In a rotor 1 for a dynamo-electric machine 2 e.g. a turbo-generator, comprising extending longitudinally within a core a plurality of electrical conductors 3, 6 joined together at their ends outside the core by end windings 4, 7 so as to form complete electrical circuits, a corrugated strip 13 of thermally conducting material projects from a radial surface of at least.one end winding, portions of the strip being in good thermal contact with the surface and intervening portions being spaced from the surface so as to provide a plurality of cooling fluid ducts extending radially over the surface. As shown applied to a distributed D.C. field winding, the strips, which form cooling fins, project axially from circumferential portions 4b of alternate strands of the end windings, but they may be provided also on the axial end winding portions 4a and on all strands if mutually insulated; they may be secured by brazing or welding and be of the same metal as the conductors 3, 6, i.e. copper or aluminium, so as to carry a small amount of winding current. Cooling gas is impelled through sub-slots 1d into underspace 10 by rotor pumping action which may be augmented by a fan 11, and passes through end winding openings 4c, 7c and hollow strands of the conductors 3, 6, to be discharged via a radial exhaust passage 16. The end winding axial portions 4a, 7a if not provided with strips 13, may be of larger cross-section than the circumferential portions 4b, 7b.
Patent GB-1185928-A (GB)
Title: Ringing Circuit
Inventor: GARCIA JEAN
IPC: H04Q3/52
Filed: 1967-09-07
Abstract: 1,185,928. Automatic exchange systems. INTERNATIONAL BUSINESS MACHINES CORP. 7 Sept., 1967 [13 Sept., 1966], No. 40868/67. Heading H4K. In a subscriber's line circuit which includes a line transformer TR, " looping " of the transformer secondary from the final selector when the subscriber is being called causes a pair of series connected gating transistors T4, T2 to become conductive and thus apply ringing control pulses from bus RCB via a transformer Tr and diode D2 to a gating thyristor T1 which supplies ringing current from bus RB to the subscriber line. When the subscriber answers, the loop current is effective to switch on another thyristor T3 which short circuits T2 whereby the ringing control pulses can no longer be used for periodically turning on TL The selectors may comprise thyristors or thyratrons. Each row of the final selector includes a device P which supplies +24 V to the associated line transformer secondary when a crosspoint is switched-on by a pulse on the row's control wire. In an alternative (Fig. 4, not shown) device P and NPN transistor T4 are replaced by a single PNP transistor whose emitter and base are connected across a resistor in series with the secondary winding. Voltage limiting is effected by a non-linear resistor L connected across the secondary winding.
Patent GB-1254738-A (GB)
Title: Improvements relating to machine tools
IPC: B23Q16/00
Filed: 1969-08-15
Abstract: 1,254,738. Controlling feeds. HARDINGE BROS. Inc. 15 Aug., 1969 [26 Feb., 1969], No. 40880/69. Heading B3T. In a machine tool such as a lathe means is provided for controlling the movement of a slide by a stop device which comprises an adjustable stop member 26 mounted on the slide 12 and which has a dog 32 projecting therefrom which co-operates with a projection on a first part of a reversing mechanism 40 mounted on the machine frame, a second part of the mechanism carrying a projection 56 is movable in response to the movement of the stop 54 and engages a selected one of a plurality of screw stops 18 in a stop drum 16. The reversing mechanism 40 is constituted by a pair of parallel rack members 36, 38 which engages a common pinion 42, the racks carrying respective projection 54, 56 and wherein movement of the first rack in one direction produces identical movement of the second rack in the opposite direction. The machine slide is hydraulically actuated and controlled by a programming means.
Patent GB-1224952-A (GB)
Title: Wire mesh welding machine
IPC: B23K11/00
Filed: 1969-08-20
Abstract: 1,224,952. Welding by pressure. EVG ENTWICKLUNGS - U. VERWERTUNGS G.m.b.H. 20 Aug., 1969 [14 Oct., 1968], No. 41549/69. Heading B3R. A wire mesh welding machine in which the spacing of the longitudinal wires is variable, comprises pairs of electrodes 4, 6, carried by contact shoes 2, 2a, slidable along conductor rails 1, 1a below the plane of mesh advance E, and a thrust transmitting device 8 for each pair of electrodes, actuated by a beam 12. Each electrode 6 is carried by a bridge 9 pivoted to shoe 2a at 2c, and also pivoted to device 8. A guide 7 for each longitudinal wire is attached to a shoe 2a and/or to a connecting piece 5, and a transverse stop 24 on each shoe 2a, ensures that each transverse wire 19, supplied from a feeder 18, 18a, comes to rest in the correct position. Beam 12 is moved to apply the welding thrust by pivoted levers 13 actuated by a rod 14 oscillated by an eccentric 15, and each device 8 has a retractable block 11, so as to allow thrust to be applied to the desired combination of welding heads. The transverse wires are held against stops 24 by a series of levers 21, 23, at each welding head, the levers being actuated as the beam 12 reciprocates. The mesh is advanced by conveyer hooks 38. Bridges 9 may be replaced by holders (9a), Fig. 2 (not shown), the current being transmitted from the shoe to the electrode through flexible conductors (10) or by roller bearings.
Patent GB-868004-A (GB)
Title: Improvements in or relating to swaging apparatus
Inventor: KONECNY FRANTISEK
IPC: B21K11/00
Filed: 1958-12-24
Abstract: 868,004. Making reamers and the like; forging. STROJIRNY A SLEVARNY BOHUMIRA SMERALA, NARODNI PODNIK. Dec. 24, 1958, No. 41754/58. Classes 83 (2) and 83 (4). In the cold swaging of metal, particularly in the manufacture of reamers, drills and taps, each swaging die 4, Fig. 3, has one or more transverse grooves 19 which restrict axial flow of the workpiece metal. The cylindrical workpiece 18 is supported between a ring 13 biased by a spring 12 and a transverse plate 14 and is swaged by radially-movable dies 4 backed by tapered wedges 3 and actuated by axial pressure on a member 5. The jaws are opened by a spring-biased cone member 15.
Patent GB-982308-A (GB)
Title: Improvements in or relating to electric cooking stoves
Inventor: BILLER RUDOLF
IPC: F24C15/10
Filed: 1961-11-22
Abstract: 982,308. Electric hot-plates. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Nov. 22, 1961, No. 41779/61. Heading H5H. A hot-plate 1, forming the top of an electric cooking stove, is formed with an integral depression 2 above which is disposed a sheathed heating element 7, forming a hot-plate, and mounted on a vertical cylindrical pivot member 5 so that it can be swung sidewardly away from its working position for cleaning purposes. As shown, a reflector 8 is fitted into the depression 2 and a supporting spider 9 is fixed to the heating element, which is movable upwardly to permit spider 9 to clear the raised edge of depression 2 as the heating element is swung sidewardly.
Patent GB-1527773-A (GB)
Title: Mos type semiconductor device
IPC: H01L29/10
Filed: 1975-10-13
Abstract: 1527773 Variable impedance field effect device MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 13 Oct 1975 [18 Oct 1974 19 Aug 1975 2 Sept 1975] 41859/75 Heading H1K In a MOSFET the source region is resistive and has contacts enabling a voltage to be generated along it to control source-drain impedance. In one embodiment the drain is connected to the gate and the source is a uniform strip normal to the source-drain path with an electrode at each end. In a specific structure of this type the channel is divided into parallel strips controlled by a common gate, and in a variant the source diffusion is inclined to the drain to give a channel length which varies across the device. In another embodiment the resistivity per unit length of the source region is varied, e.g. linearly, quadratically or stepwise along its length by variation of its doping or width. The drain facing side of the source may be tapered to simultaneously achieve in a compact rectangular structure a variation in its width to this end and a variation in the channel length. In yet another embodiment (Fig. 6) the drain region 1 is cranked to provide two sections of different channel length and the source contacted at its ends and at the junction of the sections, enabling the source impedance to be varied in response to independent, directly related, or identical voltages applied to electrodes 102, 103. Resistive losses due to currents along the source region may be reduced by forming a resistive section of the source prior to formation of the preferably polysilicon gate and then forming less resistive drain and terminal portions of the source region using the self-alignment technique. In a variant of this an additional source-facing section of the drain is formed simultaneously with the resistive section of the source. Simultaneous production of the devices and associated CMOS circuitry in an integrated structure is described.
Patent GB-880432-A (GB)
Title: A process for the purification of crude dimethyl terephthalate which has been recovered by the depolymerisation of polythylene terephthalate
IPC: C07C69/82
Filed: 1959-12-11
Abstract: A process for the purification of crude dimethyl terephthalate which has been recovered by the depolymerisation of polyethylene terephthalate by heating the polyethylene terephthalate in the presence of methanol at a temperature of substantially 200 DEG C. and a pressure of substantially 40 atmospheres, comprises crystallising the crude ester while hot in a first stage in the presence of methanol at a temperature of from 58 DEG C. to 50 DEG C. until at least 50% of the dimethyl terephthalate contained in the crude ester has precipitated, continuing the crystallisation at a temperature of 48 DEG C. until no more. dimethyl terephthalate precipitates, separating the resulting crystal magma at a temperature of at least 27 DEG C. and immediately centrifuging the separated crystal magma. An example is furnished.
Patent GB-1089096-A (GB)
Title: Silica aerogels and compositions containing the same
IPC: C08K3/36
Filed: 1964-10-16
Abstract: A varnish prepared from a phenol modified copal resin and linseed oil, containing Co and Pb naphthenate, has a finely divided silica aerogel (see Division C1) incorporated as flatting agent (Example 13).  The silica has a particle size range of 0.1-5.5 m , an average particle size below 2.5 m , a bulk density of 0.8-18 x 10-3 g./c.c., and a pore volume of at least 1000 c.c./g., and has been prepared by comminuting a silica aerogel in the presence of superheated water vapour.ALSO:A drying oil or phenolic or alkyd resin varnish contains as a flatting agent a silica aerogel which has a particle size range of 0.1-5.5 m , an average particle size below 2.5 m , a bulk density of 0.8-18 x 10-3g.l./c.c., and a pore volume of at least 1000 c.c./g., and has been prepared by comminuting a silica aerogel in the presence of superheated water vapour (see Division C1).  Varnishes exemplified are: linseed oil modified glycerin-phthalic anhydride alkyl resin (Exemples 5, 7, 11 and 16), phenolic varnish prepared from p-tertiary amyl phenol, formaldehyde, linseed oil, and tung oil (Examples 6 and 12), linseed oil-ester gum (Example 14), nitrocellulose-wood lacquer (Examples 8 and 15), cellulose acetate lacquer (Example 9), ethyl cellulose lacquer (Example 10).  Other constituents and solvents are listed in the examples.ALSO:A finely divided silica aerogel having a particle size range of 0.1-5.5 m , an average particle size below 2.5 m , a bulk density of 0.8-18 x 10-3 g/cc., and a pore volume of at least 1000 cc/g., is prepared by comminuting a silica aerogel in the presence of superheated water vapour.  Comminution may be effected in a fluid energy mill, into which water vapour at 250-750 DEG  C. is introduced, preferably in a plurality of multidirectional streams, at a rate sufficient to give a pressure of 1.0-200 p.s.i.g. in the cone and to produce turbulence and fluidization of the particles.  It may be operated continuously. Alternatively, ball or hammer mills may be used.  The heating zone may be preheated, but the temperature is usually maintained by the hot vapour.  The treated silica and vapour are separated, e.g. by gravity, at above 250 DEG  C.  The starting silica may have a pore volume of 600-800 cc/g., a bulk density of 30-35 x 10-3 g/cc., and a particle size range of 1 m - 1/2 11, preferably 4 + 8 U.S. mesh. An example of its preparation by ion-exchange of an ethanol aquasol followed by heating under pressure is given. The product is used as a flatting agent in varnishes.