baber/WOPTO huggingface dataset:
Patent GB-692353-A (GB)
Title: Improvements in three-electrode semi-conductor amplifiers
IPC: H03F3/04
Filed: 1949-12-12
Abstract: 692,353. Semi-conductor circuits. RADIO CORPORATION OF AMERICA. Dec. 12, 1949 [Dec. 30,1948], No. 31853/49. Class 40 (vi). In a circuit arrangement comprising a transistor, the input signal is connected between the base electrode and a point of fixed potential, and the output circuit is connected between the emitter and the point of fixed potential. Fig. 2 shows a transistor arrangement comprising a block of N-type semi-conductor 1, with base 4, emitter 2 and collector 3 electrodes, and bias sources 5 and 6. The input signal from source 8 in series with resistance 12, is connected between the base electrode 4 and ground and the amplified output signal is taken from across resistance 14 which is connected between the emitter electrode 2 and ground. The collector electrode 3 is connected to ground through the bias source 6. The arrangement provides a higher input impedance and a lower output impedance than is provided in the known " grounded base " transistor circuit. In a modification the bias battery 5 is omitted, the required bias between the base and emitter electrodes being obtained by selection of resistance 12 which carries the current to the base electrode, and resistance 14 which is connected to the emitter electrode. An additional resistance 18 (Fig. 4) may be connected between the collector and emitter electrodes for the purpose of bias control. Fig. 4 shows a two-stage transistor amplifier arrangement, the first amplifier 23 consisting of a modification of Fig. 2, associated with a second amplifier 24, being of the type described in Specification 692,352. The input is applied to terminals 8 and the amplified output is taken from transformer 30. The circuit arrangement, and the condenser resistance network 14, 21, 20 enables the interstage output and input impedances to be matched. Fig. 6 shows an arrangement in which a push-pull output is obtained from resistance 40 which is connected between collector and emitter electrodes and has a centre tap connected to ground. The theory of'semi-conductor amplifiers is discussed. Reference has been directed by the Comptroller to Specifications 694,021, 700,235 and 700,237.
Patent GB-1520754-A (GB)
Title: Fractionated nutritive oils for oil in water emulsions
IPC: B01J13/00
Filed: 1975-07-30
Abstract: 1520754 Oil-in-water emulsion PHARMACIA AB 30 July 1975 [19 Aug 1974] 31950/75 Heading C5C An oil-in-water emulsion suitable for parenteral administration is prepared by a method which comprises mixing a nutritive glyceride oil (e.g. soybean or sunflower oil) with a solvent therefor in the weight ratio of up to 20 parts of solvent to 1 part of oil, agitating the mixture at a temperature not exceeding 0‹ C., the ratio and temperature being such that a precipitate of crystals of the more saturated glyceride fractions forms, separating the crystals and mixing the remaining oil containing the less saturated glyceride fractions with water to form an oil-in-water emulsion. The solvent is acetone, methyl ethyl ketone, diethyl ketone, benzene, toluene or hexane.
Patent GB-996170-A (GB)
Title: Improvements in or relating to conveyors
Inventor: MIDDLETON WILLIAM
IPC: B65G21/02
Filed: 1960-09-16
Abstract: 996,170. Fire-extinguishing. COAL INDUSTRY (PATENTS) Ltd. Sept. 13, 1961 [Sept. 16, 1960], No. 31995/60. Heading A5A. [Also in Division B8] The framework of a conveyer includes a tubular member 2 which extends longitudinally of the framework and acts to supply liquid to a plurality of spray heads 9 spaced longitudinally along the conveyer. The spray heads 9 are each connected to the tubular member 2 by a conduit 10 having a valve 11 which is under the control of a temperature-sensitive element arranged to allow the valve to open at a predetermined ambient temperature. As shown, the conveyer 7 is supported on a series of troughed idler pulleys 4 which are slung from the tubular members 2 and a series of return idler pulleys 6 which are carried by vertical members 3. Each valve 11 is biased to its on position by a spring 12 but is normally retained in its off position by a fusible coupling 13 connected to pivotally mounted lever 14. A suitable range for the spray heads 9 is 15 yards and a suitable spacing of the fusible couplings 13 is 20 yards.
Patent GB-638232-A (GB)
Title: Improvements in sandals
IPC: A43B3/12
Filed: 1947-12-04
Abstract: 638,232. Sandals. FLINT, J., and NEILSON, J. Dec. 4, 1947, No. 32016. Convention date, Jan. 23. [Class 17 (ii)] Straps which form the securing means of a sandal are secured to fastening elements 8 which extend along the sides of a laminated rubber sole and are moulded therewith. The elements 8 are secured between plies 5, 5B of rubber impregnated fabric which is firmly united to a rubber sole 5A and are housed in recessed portions 6.
Patent GB-322303-A (GB)
Title: Improvements in regenerative coke ovens
IPC: C10B21/22
Filed: 1928-11-03
Abstract: 322,303. Mueller, W. Nov. 3, 1928. Addition to 308,994. Coke ovens.-The regenerator arrangements of the coke ovens described in the parent Specification are modified. In the "twin flued" oven shown in Figs. 1 and 2 there are two regenerator chambers 3, 4 or 3<a>, 4<a> beneath and extending the length of each oven, and each chamber 3, 4 is connected by ports 13, 14 to half the flues 7, 8, say the odd numbered flues, in the two adjacent heating-walls, while the even numbered flues are connected through ports 13<a>, 14<a> to the regenerators 3a, 4<a> under the adjacent ovens. Additional gas and air are supplied to the upper ends of the flues through passages 11, 12 in the partition walls between the flues. Rich gas may be supplied to the lower and upper ends respectively of the flues through conduits x and 16, and when this gas is used all the regenerator chambers are employed for heating air. In a modified form of apparatus (Figs. 4-6, not shown) the passages 11, 12 in the flue partitions are used in one phase as outlet flues for the waste gases, and in the other as inlet conduits for gas and air which burn downwardly in all the flues. In another modification (Figs. 7 and 8, not shown) each heating-wall contains two lines of flues, and the " twin " connection is made across the wall, instead of along its length as in Figs. 1 and 2.
Patent GB-410470-A (GB)
Title: Improvements in the manufacture of radio receivers and the like
IPC: H05K9/00
Filed: 1932-11-14
Abstract: 410,470. Wireless receiving-apparatus. TRAPP, G. J., 105, Aylward Road, Merton Park, London. Nov. 14, 1932, No. 32081. [Classes 39 (i) and 40 (v).] The chassis A of a wireless receiver, a thermionic amplifier or the like is moulded integrally with parts of components, such as a valve holder R, from a phenol condensation product and is coated on at least one face with a layer of metal MT which is omitted where insulation is required and serves as the earth connection member and as an electrostatic screen. The metal layer is preferably sprayed on, the chassis being masked where insulation is required. The case of a transformer may be moulded integrally with the chassis, Fig. 2 (not shown), while wiring and small components may be enclosed in the moulded panel.
Patent GB-891806-A (GB)
Title: Improvements relating to neutron sources
Inventor: DUPEN CLIVE FREDERICK GEORGE
IPC: G21G4/02
Filed: 1959-09-21
Abstract: 891,806. Producing neutrons; handling devices for use in nuclear reactors. A.E.I.-J. THOMPSON NUCLEAR ENERGY CO. Ltd. Aug. 31, 1960 [Sept. 21, 1959], No. 32091/59. Class 39(4) A neutron source comprises concentric tubular members of materials which when placed in juxtaposition react to emit neutrons, which members are located in a portable contamer with. means for removing one of the members from the container leaving the other member behind when it is necessary to lift the neutron source out of the equipment in which it operates. Fig. 1 shows a neutron source suitable for lowering into a nuclear reactor and comprising a rectangular container 1 provided with a lifting loop 9; a beryllium tube 2 enclosed in a can 3 rests on a support bracket 4 carried by ribs attached to pillars secured to the container 1. An antimony tube 10 enclosed in a can is arranged inside the beryllium tube and a lifting rod 12 extends through the middle of the tube 10 and at its lower end is provided with a bayonet slot which is engaged by pins extending inwardly from the annular wall of support member 4. The top end of the rod 12 is secured to a support member 13 provided with lugs between which extends a lifting bar 15; the support member rests on a spring which normally holds together the bayonet joint at the lower end of rod 12 and which allows the initial downward movement necessary to disengage the joint. Fig. 8 shows hoisting apparatus for removing the antimony tube. An annular block 20 carries spaced U members 21, 22 which overlie the lifting loop 9 (Fig. 1) and is provided with a lifting member 23 by which it can be raised and with a pulley 24. A hook 25 engages the lifting bar 15 and this hook has a rectangular extension which slides centrally in a control member 26 consisting of a sleeve provided with helical grooves 27. The head of control member 26 is provided with a groove 29 into which extend lifting pins 30 carried on an outer sleeve 31. When the head 32 is raised by means of the cable passing over pulley 24 the control member 26 is raised by pins 30; at the same time the control member 26 is rotated by the action of pins 34, attached to inner sleeve 35, engaging the helical grooves 27.
Patent GB-1351983-A (GB)
Title: Isomerization process employing a heterogeneous catalyst
IPC: B01J37/16
Filed: 1971-07-08
Abstract: 1351983 Isomerizing olefinic hydrocarbons ESSO RESEARCH & ENG CO 8 July 1971 [17 July 1970] 32098/71 Addition to 1263258 Heading C5E C 2 -C 30  olefinic hydrocarbons are isomerized by contact with a catalyst prepared by (1) impregnating a support with either (a) a solution of a soluble transition metal compound of Groups IVb to VIIb or VIII, the support being impregnated, before or after the impregnation with the transition metal compound, with a compound which acts as a reducing agent for the transition metal compound and has the formula MR n  (where M is Group I to III metal, R is H, halide, alkoxy or C 1 -C 20  hydrocarbyl and n is 1 to 3 or (b) a non-aqueous solution of a reaction product of the transition metal compound and the compound MR n  ; (2) removing excess solvent and reducing agent; (3) heating the product at 100-600 C. for at least 0À1 hour, the catalyst preparation being conducted under inert and anhydrous conditions, and the support being an oxide of Groups II to V or VIb metals or carbon or silica. Examples describe the isomerization of vinylnorbornene to ethylidenenorbornene and of butene-1 to butene-2. Other conversions mentioned are hexene-1 to hexene-2 or -3; 4-vinylcyclohexene-1 to 3-ethylidenecyolohexene-1; 4-phenylbutene-1 to 1-phenylbutene-1 and 1,5-oyclooctadiene to 1,3- cyclooctadiene.
Patent GB-617735-A (GB)
Title: Improvements in and relating to thermostatic electric switches
IPC: H01H37/28
Filed: 1946-10-29
Abstract: 617,735. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd., and STENT, T. F. Oct. 29, 1946, No. 32103. [Class 38 (v)] The temperature of a heated plate 1 is controlled by a thermal switch comprising a bimetal strip 2 carrying a contact 3 engaging a contact 5 on a light spring 4. Downward movement of this spring is limited by a stronger spring 10, the position of which is adjusted by a rotatable insulating projection 9 passing through an. aperture in the spring'4.
Patent GB-444337-A (GB)
Title: An improved process of and apparatus for rendering fish, fish refuse and the like
IPC: C11B1/00
Filed: 1934-11-08
Abstract: <PICT:0444337/III/1> <PICT:0444337/III/2> In a process of rendering fish, fish refuse, animal carcases and slaughterhouse refuse, the material while in a disintegrating apparatus comprising a rotary sieve drum mounted in a cylinder, is subjected to exhaust gases from a drying apparatus in which the solid constituents of the material are subsequently dried.  In the construction shown, disintegrating apparatus A adapted to receive fish by way of a hopper M and a conveyer L, comprises a rotary sieve drum O subdivided by perforated walls.  The fish is subjected to the action of waste gases and vapours issuing from a drying apparatus B, the gases in which come from a furnace Z and pass directly over the charge in the drying apparatus.  The material in the drum O passes through the perforations on to a grating D from which it is swept to a conveyer G by blades E on the drum, the blades carrying scrapers F.  The conveyer G feeds the material to a press C provided with an elevator K by means of which the material is conveyed to the hopper N of the drier B. After being dried the material passes through an outlet P. Liquid draining from the disintegrator A and the press C is collected in a separator S.  The exhaust gases from the apparatus A pass through a fan H and in part mix with the furnace gases to reduce their temperature, the rest of the gases passing through a flap valve X.
Patent GB-1030633-A (GB)
Title: Electronic musical tone generators
IPC: G10H5/02
Filed: 1964-08-07
Abstract: 1,030,633. Tuning musical instruments. A. A. VOLODIN. Aug. 7, 1964, No. 32178/64. Heading G5J. In a method of tuning a number of electronic musical tone generators to have intervals of either the tempered fifth, or fourth, according to the tempered scale, the frequencies of the two generators are adjusted to have an interval of the natural fifth, or fourth, between them whilst a correction capacitor is connected across one generator to lower the frequency of that generator by the difference between the natural and tempered fifth, or fourth, so that upon removing the capacitor the generators are tuned to the tempered fifth or fourth. One of the generators (f2) is taken as the standard, having previously been tuned, and the correction capacitor 6 connected across it so lowering the frequency slightly, of the tempered fifth is required the standard will be the lower of the two, of the tempered fourth then the higher of the two. The core 4 only of the resonant circuit of the generator (f1 being tuned is adjusted until the frequencies are in the desired natural interval, comparison being made by means of a Lissajous figure and frequency dividers of either ¢ and 1/3 for the natural fifth interval or “ and 1/3 for the natural fourth interval, the removal of the capacitor from the standard generator then raises the frequency back to the standard and the two frequencies are tuned to the tempered interval. The procedure to tune the twelve notes of a scale occurring in a single octave is described with reference to Fig. 2. Note A is first set by reference to a separate standard and E is then tuned by the above method to be one tempered fifth away, B is then made a tempered fourth from E and so on in fifth and fourth intervals as shown by the circle to A where the frequency is again checked against the standard and the correction capacitors readjusted if necessary.
Patent GB-416211-A (GB)
Title: Heat control for dryers
IPC: F26B13/18
Filed: 1933-11-18
Abstract: 416,211. Drying fabrics. MARRIOTT, H. L., 103, Kingsway, London.-(Powers Regulator Co. ; 2720, Greenview Avenue, Chicago, U.S.A.) Nov. 18, 1933, No. 32221. [Class 34 (i).] In a cloth drier having a plurality of steamheated rotary drums, a valve in the steam supply line is controlled by a thermostat and also by means responsive to abnormal steam pressure in the drums. In the form shown, the pipe 12 supplying steam to cylinders 10 through columns 11 is provided with a valve 14 controlled by the pressure in the air line 18. The pipe 16 connected to the source of compressed air is connected to the line 18 through a leak type thermostat 17 having an operating bulb 17a, and also through a relay valve 20. This valve 20 is opened by an abnormal excess steam pressure in a column 11, and then air from pipe 16 passes through pipe 16<a>, the valve, pipe 22 and a restriction valve 23 to the air line, and so closes the valve 14. When the abnormal steam pressure has died away, valve 20 closes, and the thermostatic control is resumed. Means are also described for byepassing the leak valve 17 when valve 14 is almost closed so as to close completely the latter valve, the said means being operated by high pressure in the line 18.
Patent GB-920779-A (GB)
Title: Tape controlled electrical apparatus
IPC: G03B31/00
Filed: 1959-09-22
Abstract: 920,779. Combined sound and picture apparatus; programmed electric control systems. AGFA A.G. Sept. 22, 1959 [Sept. 26, 1958], No. 32296/59. Classes 38 (6) and 40 (2). In an arrangement of two or more optical projectors at least one of which is a still projector working in co-operation, a tape which may be a magnetic record has impressed thereon a plurality of conductive patches whereby control apparatus responsive to the passage of a patch may selectively control the projectors, for example in time with recorded material. The projectors may be still picture projectors in which slide changes may be effected by the control apparatus. Relays 30, 31, Fig. 3, are operated by the respective impulses resulting from the connection of contacts 32, 33 and 33, 34, by conductive patches 36, 37, respectively, relay 30 controlling the slide-changing motor 49 of projector 3, and relay 31 controlling motor 42 and projection lamp 41. Switches 23, 24, provide for overriding manual control. An alternative circuit arrangement for two still projectors is described with reference to Fig. 4 (not shown) and two arrangements for controlling three projectors with three and two patch responsive relays respectively, are described with reference to Figs. 5 and 6 (not shown). The use of patches extending right across the tape to short-circuit three contacts simultaneously and to short-circuit the outer contacts are described with reference to Fig. 9 (not shown). Outer contacts 59, 61 of a three-element contact member, Fig. 7, are extended to provide a guide for the tape.
Patent GB-1004925-A (GB)
Title: Process for colouring textile materials and foils
IPC: D06P1/12
Filed: 1962-08-22
Abstract: Textile materials and foils are dyed or printed by treatment with an aqueous preparation containing (a) the reaction product of diketene with a polyalkylene glycol (or oxide)-modified polyvinyl alcohol, (b) a stabilized diazosium compound and optionally (c) an aminoplast precondensate of which the methylol radicals may be partly or fully etherified; and the colorations or prints fixed by heating to 90 DEG C or above.  Suitable materials are fabrics, knitted fabrics and fibre fleeces made from natural, regenerated or acetylated cellulose, wool, silk, polyamides, polyesters, polyacrylonitriles, polyvinyl chloride, glass fibres or asbestos, as well as foils based on cellulose or synthetic materials, paper and cardboard.
Patent GB-646947-A (GB)
Title: Improvements in or relating to moulds for ice-cream or the like
IPC: F25C1/24
Filed: 1947-12-08
Abstract: 646,947. Moulds for ice cream. OLDHAM, J. Dec. 8, 1947, No. 32364. [Class 87 (ii)] [Also in Group XIII] A mould for forming blocks of ice cream and the like consists of an open rectangular frame 1 adapted to receive one or more strips of sheet material 2 folded to produce substantially rectangular moulding compartments 3 separated by hollow partitions 4, the strips being adapted to fit closely within the frame. Abutment strips 5 are secured across the bottom of the frame 1 to locate the folded strip so that its alternating folds are coplanar with the edges of the frame. The frame may be fitted with a lid 6, Figs. 1, 2 (not shown). After freezing of the blocks the mould is immersed in water or other fluid at a thawing temperature so that a heat exchange sufficient for freeing the moulded material from the compartments is effected. The blocks may be removed by curving the folded strip into bow formation. In a modification, Fig. 5 (not shown), two folded strips separated by a longitudinal hollow partition 7 are placed sideby-side in the frame 1.
Patent GB-439658-A (GB)
Title: An improved means of resisting down draught in chimneys and ventilating shafts
IPC: F23L17/02
Filed: 1934-11-10
Abstract: 439,658. Chimney &c. tops. McLEAN, D., 32, Queen Alexandra Road West, North Shields. Nov. 10, 1934, No. 32404. [Class 25] A chimney or like shaft top comprises an open-ended uptake having a cap or deflector C, over but spaced from its upper end ; one or more branches h communicating with the interior of the uptake and extending downwardly along the side thereof and an ejector tube k, open at its upper end l for the reception of downwardly directed air currents, passing through and into each branch and serving to extract smoke or the like from the branch. The cap C is adjustable along its supports B. The arrows show the direction of the exhaust gases under the influence of an external air current indicated by the arrows i<1>.
Patent GB-306888-A (GB)
Title: Improved rail for railway- and tramway-lines and method of its manufacture
IPC: E01B5/10
Filed: 1928-11-07
Abstract: 306,888. Vereinigte Stahlwerke Akt.- Ges. Feb. 27, 1928, [Convention date]. Rails have insertions of hard steel running longitudinallv in the rail head, Fig. 1. The strips may be of zig-zag or snake-like form.
Patent GB-1121151-A (GB)
Title: An improvement in apparatus for testing parts for leaks
IPC: G01M3/32
Filed: 1965-07-29
Abstract: 1,121,151. Valves. AJEM LABORATORIES Inc. 29 July, 1965 [11 Jan., 1965; 23 April, 1965], No. 32544/65. Addition to 1,082,736. Heading F2V. [Also in Division G1] A valve consists of a conical housing 60 having a bore 62 for receiving ball valve element 63. Valve seats 66, 67 are of "Teflon" (Registered Trade Mark). One end of valve stem 70 engages with a slot 65 in element 63 and is connected at its other end to a rotary fluid-operated motor of the type including a vane forming chambers at opposite sides thereof, which chambers are connected to a piston-type valve operated by means of a solenoid winding to permit admission of fluid to one or other of the chambers.
Patent GB-1159271-A (GB)
Title: 1,5-Disubstituted Barbituric Acid Derivatives and process for the manufacture thereof
Filed: 1966-07-20
Abstract: 1,159,271. Anti-inflammatory &c., medicines. TAKEDA CHEMICAL INDUSTRIES Ltd. 20 July, 1966 [21 July, 1965; 7 May, 1966], No. 32641/66. Heading A5B [Also in Division C2] Pharmaceutical compositions having antiinflammatory and uricosuric activity comprise, as active ingredient, at least one 1,5-disubstituted barbituric acid derivative of the general formula wherein R 1  is a S - hydroxy - n - butyl, α - hydroxy - n - butyl or α - carboxypropyl group and R 2  is a cyclohexyl or phenyl group, or pharmaceutically acceptable base addition salt thereof, optionally together with aminopyrine or a steroidal anti-inflammatory agent and optionally together with a pharmaceutically acceptable carrier therefor. The compositions may be administered orally, rectally or parenterally.
Patent GB-776681-A (GB)
Title: Improvements in and relating to indicating instruments
Inventor: DREWELL CHARLES HENRY
IPC: G01R11/10
Filed: 1954-11-11
Abstract: 776,681. Vibration dampers. SCIENTIFIC INSTRUMENTS (GLASGOW), Ltd., and DREWELL, C. H. Nov. 9, 1955 [Nov. 11, 1954], No. 32652/54. Class 108(3). [Also in Groups XVIII and XIX] The pointer 10 e.g. of a pendulum balance is mounted fast with a collar 14 on a shaft 11 and the collar 14 is surrounded by a ring 15, a silicone or other viscous film being introduced between the ring and the collar, and stops 17, 18 one or both of which may be adjustable are provided which co-operate with a finger 16 secured to the ring to restrict the rotation of the ring so that it effects a damping action on the pointer when held by a stop but when between stops permits the free oscillation of the pointer 10.