baber/WOPTO huggingface dataset:
Patent GB-199964-A (GB)
Title: Improvements in and relating to the method of and means for generating and amplifying electrical oscillations by thermionic tubes
IPC: H03B5/10
Filed: 1922-07-17
Abstract: 199,964. Preston, L. G., and Shuttle worth, N. July 17, 1922. Thermionic amplifiers and generators.-A thermionic valve circuit for the amplification of applied impulses or for generating electric oscillations of any frequency, and applicable to the transmission or reception of wireless signals, or as a relay, is characterized by the grid being coupled electromagnetically to a coil in the anode-filament supply circuit, the retroactive coupling being thus made through circuits which are independent of the resultant amplified or oscillating currents. As shown in Fig. 2 (Prov.), applied impulses from a primary P are transferred to a step-up secondary coil K inserted in the supply circuit of the valve A, B. Amplified currents are generated in the tuned oscillatory circuit E.C.F.L. The grid is coupled at Q to the coil K, the direction of the voltages transferred to the grid being in phaseopposition to the plate voltage variations so that the load on the generator is kept constant. In Fig. 4 the coupling between the coils Q, K is sufficient to set the system into persistent oscillation. For telephony, the coil K is impulsed from an auxiliary circuit E, F, L. C, which may be energized in the manner shown in Fig. 2 (Prov.), so as to feed continuous amplified oscillations into the aerial A<1>. Microphonic modulation may be superposed on the circuit EF or on the grid circuit or aerial of the main system. As the carrier frequency is determined by the constants of the circuit EF, it will remain constant in spite of slight variations of the aerial constants due to swaying under wind-pressure &c. The coupling between the grid and the anode-generator-filament circuit may be direct, as shown in Fig. 2 (Comp.) through a portion L' of the main coil K. The portion L<1> may be inductively coupled to, or entirely removed from the coil K, and is connected in parallel with a condenser C<1>. A grid condenser and leak may replace the grid battery S, and high-frequency grid currents may be suppressed by the insertion of a choke coil between coupling-coil Q and grid leak.
Patent GB-310237-A (GB)
Title: Improvement in valve structures for internal combustion engines
IPC: F01L7/02
Filed: 1928-07-06
Abstract: 310,237. Clementson, C. M., and Clementson, S. O. H. July 6, 1928. Valves.-A rotary inlet and exhaust, vaJve comprises a sleeve 4 working over a fixed core 7 which is divided by a partition 10 into inlet and exhaust c o m p a r tments 11 and 12 respectively, each of which is formed with a series of ports 8 or 9 co-operating with similar sets of ports in the rotating sleeve 4 and in the casing 3. The inlet pipe is connected at 14, and the exhaust pipe at 15.
Patent GB-766832-A (GB)
Title: Improvements relating to seating arrangements in motor vehicle bodies
Inventor: LEVER ARTHUR
IPC: B60P3/42
Filed: 1954-07-06
Abstract: 766,832. Seats for vehicles. LEVERS GARAGES, Ltd. Aug. 15, 1955 [July 6, 1954], No. 19695/54. Class 103(2). [Also in Group XIV] A seat unit enabling a van to be converted to a passenger vehicle comprises seat and back sections slidably mounted on or in a longitudinal member which is movable towards or away from the side of the vehicle, the sections being each provided with foldable or slidable feet or like supports. As shown, rectangular frames of seat and back sections 21, 22 of a seat unit are provided with rollers 19, 20 movably located within a C-section member 15. The member is pivotally supported in links 11 each of which is connected by a tension spring 13 to a pivot 12 in a casing 10 fitted to the floor of a vehicle near the side wall. Each link has a projection 16 adapted to engage any one of three notches 17, 17a, 17b in the upper edge or a guide bar 18 attached to the casing, so that the C-section member 15 can move angularly and can also be moved laterally towards or away from the side wall of the vehicle. The seat section 21 is provided with a pivoted leg 23 and the back section has a pivoted rectangular strut 24, to support the sections in the horizontal aligned position. The sections are pivotally and slidably connected together by pivot studs 25 carried by the seat frame engaging in slots 26 on the back frame and are held in aligned position to form a back seat or bed when feet 22a on the back section are telescopically engaged in brackets 33 on the seat section. When the feet and brackets are disengaged they can be brought into position to form a bucket seat, the sections being held and supported by hooked links 30 on the seat section 21 engaging a cross bar 31 on the back section 22.
Patent GB-712840-A (GB)
Title: Improvements in equalising the speed of yarns or threads in doubling twisting
IPC: D02G3/28
Filed: 1951-08-21
Abstract: 712,840. Threads, guiding and tensioning. DOUTORS SOC. ANON. HOLDING. Aug. 21, 1951 [Jan. 30, 1951], No. 19710/51. Class 120(2) The speeds of separate yarns in a doubling machine are equalized by passing the yarns 1, 2, 3, Fig. 2, simultaneously in the same direction round a freely rotatable guide pulley 4, the pulley having parallel grooves, the diameters at the bases of which being equal and each yarn being in a separate groove, the rotation of the pulley being occasioned merely by the drag of the yarns. The yarns may be passed around two such pulleys, 4 and 5, Fig. 4, the yarns 2 and 3 being led on to the pulley 5 and after passing round the pulleys 5 and 4 being led off the pulley 4. The yarn 1 is led on to pulley 4 and passes round the pulleys 4 and 5 and is led off pulley 5. Embodiments are also described in which two yarns pass around one or two pulleys. A doubling device may comprise a rotatable shaft 11 comprising thread-guiding bowls 15 and 18 in which yarn packages 20 and 21 are mounted upon bearings and are prevented from rotating by weights 14 and 17. Yarn 19<SP>1</SP> is led from a package 19 through a brake 27 and guides 28, and through guides 29 and 30 in the bowl 15. It enters the hollow shaft 11 at 31 and leaves again at 32 and passes through guides 33 and 34 in the bowl 18. Yarn 20<SP>1</SP> from the package 20 passes into the hollow shaft 11 through a brake 37 and then follows the course of the yarn 19<SP>1</SP>. The yarn package 21 is enclosed in a box 22 rigidly united with the bearing 16 and carries a hollow spindle 24 upon which is rotatably mounted a cage 25 carrying the pair of grooved pulleys 4 and 5. Yarn 21<SP>1</SP> from the package 21 passes through a brake 39 and through the hollow spindle 24 on to the pulleys 5 and 4. The yarns 19<SP>1</SP> and 20<SP>1</SP> pass through a spindle cap 26 by means of which they cause the cage 25 to rotate with the shaft 11, and over the pulleys 4 and 5 and are doubled with the yarn 21' at 40.
Patent GB-1003227-A (GB)
Title: Improvements in and relating to the manufacture of roller-shutters and other articulated slat assemblies
IPC: E06B9/17
Filed: 1962-05-22
Abstract: 1,003,227. Manufacture of slat assemblies. HUNTER DOUGLAS INTERNATIONAL (QUEBEC) Ltd. May 22 1962 [May 22, 1961], No. 19722/62. Heading E1J. [Also in Divisions B3 and F2] Movable apparatus for use on rolled edge joints of metal slat assemblies in order to prevent the slats slipping longitudinally, comprises a solenoid operated joint-opening hammer 51, a slide plate 67 from which plastic plugs 81, cut from a roll 87, are fed into the joints, and a solenoid operated punch 36 which indents the metal slats into the plugs.
Patent GB-274915-A (GB)
Title: Improvements relating to medicated animal food stuffs
IPC: A23K20/195
Filed: 1927-07-26
Abstract: 274,915. Stiner, O., and Diethelm, B. July 26, 1926, [Convention date]. Medicines for internal use.-A fodder is prepared by bringing the solution of a medicament into conjunction with bran and like seed husks which are capable of swelling. These vegetable substances are mixed with the medicinal substance with or without the application of heat until swelling has taken place. After treatment the solvent is removed by suction or by drying. As particular examples, (1) 50 kilogrammes of bran are mixed with 25 litres of a solution containing .5 grms. of potassium iodide or .05 grms. of arsenious acid, and .05 grms. of potassium carbonate or 0.3 grms. of strychnine per litre. (2) 5 grms. of potassium iodide or .5 grms. of arsenious acid, and .5 grms. of potassium carbonate or .3 grms. of strychnine are dissolved in 100 litres of water and 50 kilograms of bran stirred into the solution. The Specification as open to inspection under Sect. 91 (3) (a) describes the above preparations as being used for foodstuffs as well as fodders, and in addition mentions dry or dried seeds, stalks, and leaves of graminice, leguminous plants, and parts of plants such as medullary parts (sago for example) or roots (manioc) as suitable vegetable substances. This subject-matter does not appear in the Specification as accepted.
Patent GB-1132527-A (GB)
Title: Improvements in or relating to the production of surface-active compounds
Inventor: HABESHAW JOHN
IPC: C11D1/22
Filed: 1966-05-05
Abstract: 1,132,527. Derivatives of olefin dimers; sulphates, sulphonates and hydroxy compounds. BRITISH HYDROCARBON CHEMICALS Ltd. 28 June, 1967 [5 May, 1966], No. 19852/66. Heading C2C. [Also in Division C5] A C 12-14  olefin fraction obtained by co-dimerizing n-hexene or n-heptene (see Division C5) is used to produce biodegradable detergents by any of the following routes:- (1) Alkylation of benzene, followed by sulphonation (e.g. with 20% oleum) and neutralization with an alkali. (2) Hydrochlorinating the olefin fraction, alkylating benzene with the alkyl chloride thus obtained, and then sulphonating and neutralizing as in (1). (3) Subjecting the olefin fraction to an oxoreaction to form aldehydes, which are then hydrogenated to form C 13-15  alcohols, which in turn are sulphated (e.g. with chlorosulphonic acid) and neutralized with an alkali or an organic base such as triethanolamine. (4) Obtaining a C 13-15  alcohol as in (3), then reacting this with 1-3 mols ethylene oxide, followed by sulphation and neutralization. (5) Obtaining a C 13-15  alcohol as in (3), and reacting this with sufficient ethylene oxide to produce a non-ionic detergent. (6) Hydrating the olefin fraction to form a C 12-14  alcohol which may then be converted to a detergent by any of the routes described for the C 13-15  alcohol under (3), (4) and (5). Specific examples illustrate routes (1) and (3).
Patent GB-183477-A (GB)
Title: Method of constructing arches of reinforced concrete without using any moulds, archedfalseworks or scaffoldings
IPC: E01D21/00
Filed: 1922-07-20
Abstract: 183,477. Gouyaud, G. M., (Assignee of Dalens, L. C.). July 20, 1921, [Convention date]. Addition to 181,713, [Class 20 (i), Buildings and structures, Kinds &c. of]. Arches; roofs.-Hollow or skeleton-like reinforced-concrete arch blocks are used in place of the metallic tubular elements described in the parent Specification f o r structures of small span or lightly loaded, the dimensions of the metal tubes being then too small for working inside. The blocks are temporarily suspended in a similar manner by guy-ropes, so that centering or falsework is dispensed with, and consist of angle-portions u joined at intervals by cross-stays v ; for deeper blocks, intermediate longitudinal portions u<1> are included. The blocks are adjustably connected by dowels 22 and bolts and plates 23; metal bars are then secured in place by transverse bindings, and a spiral reinforcement may be added. Wooden or metallic sheeting is then applied and the interior is filled with concrete. Weight may be reduced by using porous concrete linings or cores 20. Adjacent ribs so formed may be connected by concrete vaulting cast by means of moulds suspended from the ribs.
Patent GB-502562-A (GB)
Title: Improvements in radio receiving circuits
IPC: H03G1/04
Filed: 1937-07-19
Abstract: 502,562. Automatic volume control. MEYER, L. W. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken) July 19, 1937, No. 19986. [Class 40 (v)] In order to avoid distortion inherent in variable - bias A.V.C. systems employing variable-mu valves, the gain of a radio receiver is automatically varied by means of two intervalve couplings, the range of variation of the later coupling being greater than that of that preceding. In Fig. 1, the coupling 15 between the aerial and mixing valve 3 and the coupling 16 between valve 3 and the I.F. amplifier 6 are both automatically varied by a galvanometer type motor 14 in the anode circuit of valve 6, the steady anode current of which is varied by A.V.C. voltages from the signal diode 9. The valve 6 may have a perfectly linear characteristic and the condensers 15, 16 are such that the variation of coupling due to 15 is small compared with that due to 16. In Fig. 2, the aerial input coupling to the radio-frequency amplifier 21 of a superheterodyne receiver comprises a potentiometer composed of a constant resistance 17 in series with a resistance 18 of negative temperature coefficient such as uranium dioxide, the latter being in parallel with the coupling coil 19. The coupling between the I.F. amplifiers 26, 31 includes a similar potentiometer comprising fixed resistance 27 and heat-sensitive resistor 28, the latter shunting coupling coil 29. A.V.C. potentials are applied to valve 21 from the diode 37, delay-biassed by 38, the resistor 18 being connected to tappings on the bias resistances 42 and 43 of valves 21, 26 respectively, the tappings being so chosen that on weak signals no direct current flows through 18. On larger signal amplitudes, diode 37 becomes operative to vary the bias and anode current of valve 21, thereby causing the potential of the tapping on resistor 42 to fall with respect to that of the tapping on 43. The resulting current flow through resistor 18 decreases its resistance and thereby reduces the coupling between aerial and first valve 21, The anode circuit of amplifier 31 is coupled over condenser 44 to an anode bend rectifier 45, in the anode circuit of which the resistor 28 is connected in series the anode current of 45 increases with increasing signal, and the resistance of 28 is thereby decreased to decrease the coupling. The values of resistors 17, 18, 27, 28 and the steady currents flowing through 18 and 28 arc so chosen that the range of variation of the first coupling 17, 18, 19 is small compared with that of coupling 27, 28, 29 and the former is subject to delayed action. The valve 21 may also have a linear characteristic.
Patent GB-1318660-A (GB)
Title: Deflection yoke for a triad-type colour cathode ray tube
IPC: H01J29/76
Filed: 1971-06-10
Abstract: 1318660 Electron beam deflecting apparatus GTE SYLVANIA Inc 10 June 1971 [10 June 1970] 19989/71 Heading H1D A deflection yoke for a colour television tube employing three electron guns in delta formation, comprises a toroidal yoke 15 on which first and second horizontal deflection windings 17 and 19 are toroidally wound and first and second vertical deflection windings 29 and 31 each comprising two toroidally wound layers with each turn 39 of the second layer supported by a pair of turns 37 of the first layer and having a diameter greater than that of the turns of the first layer. The increased diameter may be due to increased conductor diameter, which reduces the resistance, or to increased insulation thickness. Flux altering means in the form of a winding gap or short-circuited turns may be provided at 21, 23 for the horizontal windings and at 33, 35 for the vertical windings. The horizontal windings are preferably but not necessarily symmetrical and in mirror-image relationship with respect to the horizontal axis H-H<SP>1</SP>, and the vertical windings are preferably also in mirror-image relationship about both axes H-H<SP>1</SP> and V-V<SP>1</SP>. The horizontal windings are interleaved with the vertical windings and may but need not be of similar construction. The vertical deflection current is supplied to an input end 41 and passes through the second layer the end of which is connected by an external lead 43 to the pair of turns at the beginning of first layer the end of which is connected by a lead 45 to the pair of turns at the beginning of the first layer of the other winding; the pair of turns at the end of this layer is connected by lead 47 to the second layer, the other end of which is connected to earth or a fixed potential.
Patent GB-1497461-A (GB)
Title: Herbicide
IPC: A01N47/30
Filed: 1975-05-13
Abstract: 1497461 Synergistic herbicide compositions BASF AG 13 May 1975 [28 May 1974] 20059/ 75 Heading A5E A herbicidal composition comprises a 2, 1, 3 - benzothiadiazinone - (4) - 2, 2 - dioxide of formula: wherein R<SP>1</SP> is alkyl or chloroalkyl, or a salt thereof, and N-4-isopropylphenyl-N', N'-dimethyl urea. The compositions find application as total or selective herbicides and may contain other listed active ingredients.
Patent GB-810096-A (GB)
Title: Improvements in or relating to electric circuits employing transistors
Inventor: WOLFENDALE ERIC
IPC: H03B5/12
Filed: 1955-07-11
Abstract: 810,096. Transistor generating circuits. MULLARD RADIO VALVE CO. Ltd. July 11, 1956 [July 11, 1955], No. 20067/55. Class 40 (6). In a sine wave generator a circuit is associated with a junction transistor having reversally biased emitter-base circuit to produce rapid changes of current at a given pulse recurrence frequency, a tuned circuit L10, C10 being energized by the rapid current changes. The circuit is described as applied to a junction transistor operating in the manner described in Specifications 809,115 and 809,116, in which the pulse occurring at the collector is fed down a delay line to a short-circuited end S and reflected as a negative-going pulse to the collector when the transistor is rendered conducting again. If the base resistor Rb is returned to a bias source Eb a triggering pulse is applied to the emitter to commence operation of the circuit. In a modification the short circuit S is replaced by a terminating resistor and is coupled back to the emitter. The time delay due to transmission in one direction down the delay line is less than one cycle of the pulse repetition frequency in order that the delay line may control the operating frequency.
Patent GB-1327352-A (GB)
Title: Semiconductor device
IPC: H01L23/047
Filed: 1972-05-01
Abstract: 1327352 Semiconductor devices KYOTO CERAMIC KK 1 May 1972 [2 Oct 1971] 20074/72 Heading H1K A power semiconductor device comprises a Cu stud 1 to which is Au-Cu soldered a heat conductive insulant base 2 of e.g. beryllium ceramic which is encircled by a heat conductive insulant member 6 of e.g. sintered alumina leaving a clearance 10 to the base. A second similar heat conductive insulant member 7 is superimposed on an electroconducting area 9 of member 6. The area may be divided into 4 parts and formed by depositing or printing Wo or Mo-Mn paste on the surface of member 6 when raw, placing member 7 thereon, and sintering. The exposed metallized areas are nickel plated (Fig. 3, not shown), further sintered, and the nickel layers are covered with a layer of Au-Si solder 5. The members 6, 7 unite and are soldered to the top surface of the stud. Semiconductor element 4 is Au-Si soldered to the top of the base and wire connected to the appropriate conducting areas 9 covered with Au-Si solder to which leads 12 are attached by Au-Cu solder (Fig. 3, not shown). A disc shaped Co-Ni-Fe cap 8 is hermetically sealed to member 7 with Au-Si solder. The cap may be of Mo, Wo, ceramic or glass of co-efficient of thermal expansion similar to alumina ceramic. The device is applicable to thyristors or triacs.
Patent GB-168867-A (GB)
Title: Improvements in and relating to the washing and displacement of gases
IPC: B01D47/08
Filed: 1921-07-27
Abstract: 168,867. Kestner, P. Sept. 9, 1920, [Convention date]. Blast apparatus, injector.-Means for washing and displacing gases by induction by the projection of a cleansing liquid comprise one or more paddle-wheels 1, having radial blades 2, between which the liquid is introduced by one or more nozzles 6, the angle of dispersion of the spray being controlled by regulating the pressure of liquid in the feed pipe or pipes. Liquid is removed from the gas passage through the outlet 15. Several wheels may be mounted on the same shaft. The blades may be curved as shown or oppositely if the angle a is to be large; straight blades may also be used. Fig. 4 shows an arrangement to prevent corrosive gases coming into contact with the paddle-wheels. The Specification as open to inspection under Sect. 91 (3) (a) states that the jet of spray from the paddle-wheel may pass between two sets of venetian blinds acting like the successive cones of a Koerting injector. This subject-matter does not appear in the Specification as accepted.
Patent GB-600215-A (GB)
Title: Improvements in or relating to a process of producing salts of antimalarial acridineorganic bases
IPC: C07D219/12
Filed: 1945-08-07
Abstract: A salt of a substituted amino-alkylamino acridine organic base having anti-malarial properties is prepared by reacting such a base or a salt of such a base with p-sulphobenzoic acid, e.g. by reacting a water soluble salt of such a base with a water soluble p-sulpho-benzoate.  The base may be substituted with a dialkylamino-alkylamino or a piperidino-alkylamine group.  In an example, aqueous sodium di-p-sulphobenzoate is added to aqueous 2-methoxy-6-chloro - [11 - methyl - 41 - (diethylamino) - butylamino] acridine dihydrochloride to yield the corresponding di-p-sulphobenzoate salt.  Similarly the p-sulphobenzoate salts of 2-methoxy - 6 - chloro - 9 - [21 - (isopropyl - 211 - methoxyethylamino)-ethylamino]-, 2-methoxychloro - 9 - [21 - (diethylamino) - ethylamino], 2 - methoxy - 6 - chloro - 9 - [31 - (N - piperidino) - propylamino] -, 2 - methoxy - 6 - cyano-9 - [11 - methyl - 41 - (diethylamino) - butylamino]-, 2-methoxy-6 : 7-dichloro-9-[11-methyl-41 - (diethylamino) - butylamino] -, 2 - ethoxy - 6 - chloro - 9 - [41 - (diethylamino) - butylamino-, and 2-methyl-6-chloro-9-[31-(diethylamino) - propylamino] - acridines may be prepared.ALSO:A salt of a substituted amino-alkylamino acridine organic base having anti-malarial properties is prepared by reacting such a base or a salt of such a base with p-sulphobenzoic acid, e.g. by reacting a water-soluble salt of such a base with a water-soluble p-sulphobenzoate.  The base may be substituted with a dialkyl-amino-alkylamino or a piperidino-alkylamino group.  In an example, aqueous sodium di-p-sulphobenzoate is added to aqueous 2-methoxy-6 - chloro - 9 - [11 - methyl - 41 - (diethylamino) - butylamino] acridine dihydrochloride to yield the corresponding di-p-sulphobenzoate salt.  Similarly, the p-sulphobenzoate salts of 2-methoxy - 6 - chloro - 9 - [21 - (isopropyl - 211 - 6 - chloro - 9 - [21 - (diethylamino) - ethylamino], 2 - methoxy - 6 - chloro - 9 - [31 - (N - piperi - dino) - propylamino] -, 2 - methoxy - 6 - cyano - 9 - [11 - methyl - 41 - (diethylamino) - butyl - amino]-, 2-methoxy-6 : 7-dichloro-9-[11-methyl-41 - (diethylamino) - butylamino] -, 2 - ethoxy - 6-chloro-9-[41-(diethylamino)-butylamino-, and 2 - methyl - 6 - chloro - 9 -[31-(diethylamino) - pro - pylamino]-acridines may be prepared.