baber/WOPTO huggingface dataset:
Patent GB-1026484-A (GB)
Title: Superconductive circuit fabrication
IPC: H01L27/00
Filed: 1963-02-25
Abstract: 1,026,484. Superconductive circuits. GENERAL ELECTRIC CO. Feb. 25, 1963 [March 14, 1962], No. 7548/63. Heading H3B. [Also in Divisions B6 and H1] As shown, a cryogenic device comprises a substrate 10 on which is formed a plurality of gate conductors 12( 1 )-12(n) of " soft " superconductive material covered by an insulating layer 16 and crossed by control conductors 17( 1 )-17(n) of " hard " superconductive material. Gate conductors 12( 1 )-12(n) of tin and insulating layer 16 are formed by vapour deposition through appropriate masks. A layer of lead is then deposited and etched using a photo-resist mask to form the control conductors 17( 1 )-17(n) and strips 18, 13 which interconnect the ends of all the control and gate conductors. A protective film is applied to the surface of the assembly. When cooled to about 3À6 degrees K both sets of conductors become superconductive. When a current is passed through a control conductor the magnetic field causes all the gate electrodes, except the one under the wider portion of the control conductor, to become resistive. The substrate may be formed wholly or partially of superconductive material covered with an insulating layer to provide a shield plane.
Patent GB-606328-A (GB)
Title: Improvements in or relating to centrifugal compressors
IPC: F04D29/46
Filed: 1946-03-11
Abstract: 606,328. Centrifugal fans. MASCHINENFABRIK OERLIKON. March 11, 1946, No. 7577. - Convention date, May 8, 1945. [Class 110 (i)] An arrangement for preventing surging in a centrifugal compressor by throttling a crosssection on the suction side thereof, comprises a cylindrical slide valve 1 adapted to move in the axial direction parallel to the axial direction of the compressor. It is stated that the valve 1 may be operated manually or automatically in accordance with the output of the compressor. Reference has been directed by the Comptroller to Specification 392,968.
Patent GB-398426-A (GB)
Title: Expansible fastener link or section for bracelets, watchbracelets and the like
IPC: A44C5/24
Filed: 1933-03-13
Abstract: 398,426. Bracelets &c. EINSELE, R., 60A, Bleichstrasse, Pforzheim, Germany. March 13, t933, No. 760 J. [Class 43.] An expansible fastener link for bracelets comprises a folding spring- pull element b, c held in folded position by a catch adapted to remain operative during the greater part of the expansion of the pull element b, and such that the element b is released for unfolding when expansion is complete. One folding-pull element may be hinged to the loops of a watch or two such elements may be combined to form an intermediate bracelet section. In one form, Figs. 3 and 4, a plate b slides in a guide a, lateral extensions 19 sliding against springs 17 in flanges 16 of a plate 14. The plate b is hinged to a plate c hingedly secured to a link d for clamping to a bracelet part e. The plate c is formed with a T-shaped extension 21, 22 adapted to engage in a T-shaped aperture 23, 24 in the plate 14. The wider part 21 of the extension is passed through the wider part 23 of the aperture and engages under the edges of the part 24. The plate c can thus only be released for unfolding when the plate b has been moved sufficiently along the guide a so as to bring the parts 21, 23 opposite one another. In another form, Fig. 5, the folding pull-element b, c is a U-shaped plate mounted on a pin 27 on the guide a. The plate 14 is shortened and a further plate 25 is provided above it. The part b is folded over so as to engage between the plates 14, 25 and is held by a spring 28 interposed between the pin 27 and rivets 26a on the part c. The element b, c must thus be pulled out from the guide a against the spring in order to release the part b for unfolding. Means may be provided whereby the folding part may be engaged directly with the guide without necessitating pulling back the sliding part. For this purpose the plate b may be made laterally resilient by an incision and be provided with projections adapted to enter in and engage under the edges of a narrowed part of an aperture in the plate 14. The aperture has a widened part providing release on expansion as in the forms described above. In another form, for the same purpose the guide a is provided with spring side plates having projecting or twisted free ends adapted to engage the edges of the part b, being automatica,llv released at recesses in the corners of the part b when it has been slid along the guide.
Patent GB-785443-A (GB)
Title: Improvements in or relating to travelling-wave electron tubes
IPC: H01J25/46
Filed: 1954-03-16
Abstract: 785,443. Travelling-wave tubes; magnetrons. RAYTHEON MANUFACTURING CO. March' 16, 1954 [June 19, 1953], No. 7624/54. Class 39(1). [Also in Group XL(c)] In a travelling-wave tube e.g., of the circular magnetron type, in which the electron stream 30, Fig. 1, interacts with a backward-wave propagating along an anode structure 10 towards an output coupling 24, there is provided a continuous cathode 20 or a cathode emissive at several spaced locations along the structure. An electrode 29 prevents rotation of the electrons past the gap between the two ends of the anode structure. A separate potential may be applied to electrode 29, and the electrode may project from the cathode instead of from the anode. However, electrode 29 may be omitted altogether. The anode structure consists of vanes 12 provided with strapping. In another embodiment, Fig. 4, the anode structure consists of interdigitating rods 31. The end rods may be coated with loss material 15. The tube may be coupled at 28, Figs. 1, 5, at the end of the anode structure opposite the output coupling 24, to a cavity resonator 36 of high Q to obtain an oscillator whose frequency is looked to that of the resonator and can be varied by tuning the resonator. The output can be amplitude modulated by varying the anode voltage. If connection 28 is left open the tube will oscillate at a frequency governed by reflections at the ends of the anode structure and dependent on the anode voltage. By varying the anode voltage the output may be frequency modulated as well as amplitude modulated. The tube may be operated as an amplifier by connecting a signal source 40, to 28, Fig. 7, provided the frequency of the signal lies within the pass band of the anode structure. If a matched termination is connected to 28, or provided by loss material within the tube, the tube becomes self oscillatory over a wide range of frequencies and may be used as a noise generator.
Patent GB-492185-A (GB)
Title: An improved electric hot-plate
IPC: H05B3/72
Filed: 1937-03-16
Abstract: 492,185. Electric hot-plates. BROWN, BOVERI, & CIE AKT.-GES. March 16, 1937, No. 7627. Convention date, March 27, 1936. [Class 39 (iii)] A hot-plate having a sheet metal top plate 1 pressed to form spiral or concentric grooves 3 for containing the resistances 4, is provided with one or more borders or edges 2, 5 which surround all or some of the grooves and are of a greater depth than the latter to support a utensil out of contact therewith.
Patent GB-629632-A (GB)
Title: Improvements in or relating to brushes
IPC: B29C45/26
Filed: 1947-03-20
Abstract: A bristle carrying element for a brush comprises a flexible bristle support B formed of moulded plastic material, e.g. polythene, with tapered bristles B1 integral therewith and projecting from one face thereof and a series of withdrawal projections B2 formed on the opposite face thereof each substantially directly behind a bristle or behind a group of bristles where they can be used to withdraw the bristles from moulding cavities individually or <PICT:0629632/IV (a)/1> in groups.  The projection behind each bristle may be of circular cross-section or a rib-like projection may extend behind each row of bristles.
Patent GB-1411740-A (GB)
Title: Water-insoluble monoazo dyestuffs
IPC: C09B29/42
Filed: 1972-05-17
Abstract: 1411740 Disperse monoazo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 13 April 1973 [17 May 1972] 7786/75 Divided out of 1398741 Addition to 1256093 Heading C4P New disperse monoazo dyes, free from SO 3 H and COOH groups, of formula wherein R<SP>4</SP> is H, alkyl, cycloalkyl, aryl or aralkyl, R<SP>5</SP> is H or alkyl and Z<SP>2</SP> is a C 7 -C 12  alkyl radical are prepared by azo coupling using diazotized sulphonamidoanilines and appropriate hydroxy-pyridone coupling components. The dyes give greenish-yellow shades on polyester fibres.
Patent GB-468980-A (GB)
Title: Improvements in or connected with tubular feed water heaters and like heat exchangers
IPC: F28F1/02
Filed: 1936-03-16
Abstract: 468,980. Heat - exchanger tubes. LIVSEY, H. March 16, 1936, No. 7844. [Class 64 (iii)] In tubular feed-water heaters and like heat-exchangers in which hot gases pass over rows of ovoid tubes 1 in staggered formation, the tubes are arranged with their narrow portions 2 facing the gas flow.
Patent GB-478782-A (GB)
Title: Nut device for electric lamp holders and other screw-threaded articles
IPC: F21V17/06
Filed: 1937-03-18
Abstract: 478,782. Nuts. McLEAN, J. March 18, 1937, No. 7943. [Class 89 (i)] [Also in Group XI] A nut for a screw-threaded article, e.g. for attaching a lampshade to an electriclamp holder, comprises a metallic ring 1 having at one end an inturned flange 2 provided with a plurality of inwardly directed tongues 3 to engage the screw-threads of the article, and at the other end an overturned outwardly directed flange 6 with external serrations, corrugations, or the like. Specifications 10753/12 and 482/15, [both in Class 75 (ii)], are referred to. Reference has been directed by the Comptroller to Specifications 10753/12 and 482/15.
Patent GB-194939-A (GB)
Title: Improvements in tip-up seats for use on vehicles
IPC: B60N2/10
Filed: 1922-03-18
Abstract: 194,939. Hillman Motor Car Co., Ltd., and Green, E. A. March 18, 1922. Folding-seats. - In a tip-up seat, for use on vehicles, of the kind wherein the back is hinged to the base and is acted on by a link so that when the base is tipped forward the back automatically folds down upon it, the back is extended below its pivot and the link connects the extension of the back to a fixed point just above the pivot to the base. In the form shown, depending lugs A on the seat frame A<3> are pivoted to short uprights B, and the back frame D is pivoted at C to extensions A<4> of the seat frame. The link E is pivoted to the extension D<2> of the back and to the upright B. A foot-rest F serves as a handle to tip the seat.
Patent GB-440232-A (GB)
Title: Improvements in or relating to furnace firebars
IPC: F23H17/12
Filed: 1935-03-15
Abstract: 440,232. Casting processes. MORTON, J. H., Monsall Road Iron Works, Newton Heath, Manchester. March 15, 1935, No. 8052. [Class 83 (i)] Moulds.-A fire bar is cast from ordinary iron in a metal mould by rapid pouring and immediate extraction. The mould a, b is arranged so that the bar is cast horizontally with its upper edge e down and the depth e-k of the bar at an angle of 45‹ to the vertical. The mould is bevelled at e, k, or has detachable parts, to facilitate extraction. To avoid trapping air, only the mould part a is shaped to produce spacing ribs f, and vents g,. Fig. 2, are provided. The part b has a flange i to support a funnel i<1> which is coated with clay wash to facilitate pouring, which should take less than 10 seconds. The mould may be of cast iron, reinforced with steel, and may be carried by arms j<1>, Fig. 6, of frames j, the horizontal part j<2> of which serves to receive the part b, when removed, or complete moulds, to cool while another is in use.
Patent GB-678628-A (GB)
Title: A telephone directory stand
IPC: A47B19/04
Filed: 1950-03-31
Abstract: 678,628. Stands; furniture combinations. PARTRIDGE, W. C., and PARTRIDGE, H. M. April 2, 1951. [March 31, 1950] No. 8054/50. Class 52. (iii). A stand 10 comprises a set of shelves 11 to accommodate telephone directories and an extending top comprising a leaf 25 which can be slid to one side and which carries a note-pad and a captive pencil 30 and a leaf 17 which can be slid to the other side and which carries a cradle for a telephone handset. The cradle comprises two arms 18 having end clips 20 and pivoted at 19. The pivot 19 has play and the clips 20 are rotatable to allow adjustment for different sizes of handset. The stationary part 24 of the top is formed in two parts to leave a slot 26 in which slides a lug 28 on the leaf 25. The back is extended upwardly at 14 and carries a lamp 16. The rear side of the back is strengthened by a channel bar which receives the lamp flex. Resilient feet are provided and the stand may be secured to an upright support.
Patent GB-268356-A (GB)
Title: Improvements in or relating to desks for typists
IPC: A47B21/04
Filed: 1927-03-23
Abstract: 268,356. Poron, L., Poron, L., Hennequin, (nÚe Poron), H., and Raquet, (nÚe Poron), A. March 24, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Copy-holders.-In a desk or copy-holder for typists, the sheet 3, Fig. 2, to be copied passes around, a rod or plate 5 and between rollers 6, 7, one of which is rotatable by hand or by the mechanism of the typewriter, so 'that the lines are successively exposed. Additional supporting means may be provided, either in the form of a desk having a ledge to support books &c., or in the form of a plate 10 having holders 12, 13, to engage a block 11 and the turned-back leaves of the block respectively. The device may be carried by a bar 1, Fig. 4, supported by columns 14 on a typewriter table 15, or may be mounted on a wall-bracket, or in other suitable manner.
Patent GB-744752-A (GB)
Title: Improvements in and relating to domestic washing appliances
IPC: D06F17/06
Filed: 1952-03-31
Abstract: 744,752. Washing-machines. THEOBALD, C. R., and THEOBALD, L. W. June 26, 1953 [March 31, 1952], No. 8141/52. Class 138 (2). A clothes-washing appliance comprises a compressed-air motor arranged within a casing 12 and having a shaft 15 which extends through the casing and carries externally thereof a rotary agitator or impeller. The motor and impeller comprise sets of blades 19 and 20 respectively secured to the shaft 15, the impeller rotating in a cylinder 17 covered by wire mesh 18. The compressed air is supplied by a vacuum cleaner through a flexible pipe 23, and the air outlet 22 may terminate within a container 10 so that the exhaust air assists in the agitation. The container 10 may be a domestic copper into which the appliance is placed. Alternatively the appliance may form part of the structure of a washing-machine. According to the Provisional Specification the motor compartment may be outside the container 10.
Patent GB-213620-A (GB)
IPC: F02B1/00
Filed: 1924-03-31
Abstract: 213,620. Zoller, A. March 31, 1923, [Convention date]. Valves; valve gear; regulating. - In a twostroke engine the charge is compressed in part in the crank chamber and also in one or more compressors. The air that is used in the compressors may be taken from that displaced by the radiator fan, the amount being varied by altering the angle or pitch of the fan blades. The amount of supercharging is controlled by regulating the exhaust valve. The Specification as open to inspection under Sect. 91 (3) (a) also states that, in order to limit the loss of mixture, through the exhaust, separate supplies of scavenging-air and mixture are used, the mixture being admitted through a port in a rotary valve L, Fig. 12 (Cancelled), which also serves as the exhaust valve. The engine is regulated by controlling simultaneously the throttle valve on the compressor and the engine exhaust; the latter is effected either by an adjustable sleeve surrounding the exhaust valve or by a variation in the driving-gear of the valves. This gear may consist of a wheel fixed by inclined keys in a shaft, or of a differential drive with an adjustable planet-carrier. The valves L, Fig. 14 (Cancelled), may surround the cylinders, one valve driving the next. This subject-matter does not appear in the Specification as accepted.
Patent GB-1293472-A (GB)
Title: Device for vaporizing liquid samples for analysis
IPC: G03G5/10
Filed: 1970-02-20
Abstract: 1293472 Vaporizing liquid samples for analysis; chromatography sampling ATOMIC ENERGY OF CANADA Ltd 20 Feb 1970 [3 March 1969] 8212/70 Heading B1X A liquid sample of material to be vaporized for analysis, e.g. in a mass spectrometer or a chromatograph, is drawn by vacuum into tube 1 the bore-diameter of the inlet portion of which is less than 60 (preferably 20 to 30) microns but increases towards the portion 4 which is connected to the analysing device 10 and, via valve 12, to the vacuum source 11. The liquid evaporates from meniscus 8 in the central portion 3 of the tube 1 where the bore-diameter is 1mm or less. The rate of evaporation is equal to the rate of liquid inflow. Means (not shown) may be provided for moving tube 1 up and down in accordance with the motion of a series, of sample containers, e.g. 15 and 16, moved successively under the tube. Alternatively the containers may remain stationary, and the tube 1 moved from one container to another. Means are also provided to shut-off or open the valve 12 in accordance with the motions of the tube 1 and the sample containers. The apparatus may be automated. The sampling tube may be used to determine the deuterium content of water by mass spectrometric analysis, the vapour being discarded until isotopic equilibrium is set up. The sample container may be made of polytetrafluoroethylene.
Patent GB-1537203-A (GB)
Title: Pipe joint assemblies
IPC: F16L17/00
Filed: 1977-02-28
Abstract: 1537203 Seals; pipe couplings PONT-AMOUSSON SA 28 Feb 1977 [3 March 1976] 08308/77 Headings F2B and F2G A gasket for a spigot-and-socket pipe joint 3, 4 comprises an annular elastomeric sealing ring 5 having an axially extending portion 14, radially compressed between the spaced annular walls of the pipe joint 3, 4, and an end flange 15 by which the sealing ring 5 is anchored in a groove 12 in the socket 3, the end face 18 of the axially extending portion 14 being arcuate in cross-section and connected to each of the inner and outer surfaces 19, 20, forming the portion 14, by sharp circular edges 22a, 22 respectively, the arcuate end 18 of the portion 14, when the sealing ring is in its free state, i.e. before assembly, being generated by an arc the height f of which is no greater than one-fifth of the length of the associated chord e. The arcuate end may be convex or concave or simply flat, i.e. of infinite radius, and the plane passing through the end parts 22a, 22 of the chord may be radial as at 24 or inclined as at 24a, 24b to the centre axis XX, the outer surface 20 may be frusto-conical converging towards the flange 15. Similarly the inner surface may be frustoconical as shown in chain-dotted lines at 19a or 19b or may be simply cylindrical as shown in full. It is stated that the sharp corners 22a, 22, as compared with the usual rounded-seal ends, enable the sealing ring to withstand attack from corrosive fluids.
Patent GB-558118-A (GB)
Title: Improvements in and relating to electromagnetic switches
IPC: H01H51/20
Filed: 1942-06-17
Abstract: 558,118. Electromagnetic switches. BRITISH THOMSON-HOUSTON CO., Ltd. June 17, 1942 No. 8313. Convention date, June 18, 1941. [Class 38 (v)] The armature 20 of an electromagnetic switch is pivoted to a leg 11 by means of a channelshaped spring member 21 fixed to the armature and having a bent-in portion 27 which rests in a groove 31 of a T-shaped projection 29 on the leg to form a knife-edge bearing. The member 21 also has spring-fingers 26 which engage the groove 30 below the projection 29 and bias the armature into the position shown in Fig. 1. When the armature is attracted downwards, its end 54, which engages a slot in a strong spring 47 pulls this spring down and after some lost motion a finger 50 on the spring 47 engages and pulls down a weaker spring 42 so that a contact 41 on it is removed from a fixed contact. Both springs 47, 42 tend to move upwards with a force that is adjustable by bolts 60, 62, and in the position shown the strong spring 47 presses on the spring 42 to ensure good contact. The invention is shown applied to a motor-controlling switch such as is described in Specification 542,189, wherein one operating coil 19 controls three magnets and releases their armatures in succession. Each armature also operates a push rod passing through the base 40 and bearing on a cross rod, so that this rod is moved and opens contacts. The last pusher rod to move also operates a lever 81 and opens contacts 80.
Patent GB-100690-A (GB)
Title: Improvements relating to Safety Razors.
Inventor: CHATWIN JOSEPH
IPC: B26B21/10
Filed: 1916-06-13
Abstract: 100,690. Chatwin, J., (Rasoir Helvetia, Soc. Anon.). June 13, 1916. Razors, safety. A safety razor has a perforated blade clamped in a handle made of a single piece of sheet metal and comprising two arms a, b united by a spring bow c' and enlarged to form a double serrated guard, as shown, and a corresponding plain back portion. The plain portion has two pegs h and a screw peg n, which are adapted to pass through holes in the blade and in the guard. A non-detachable nut o, turnable in a tapering hole in the guard, engages the peg n to clamp the blade.
Patent GB-988385-A (GB)
Title: Photographic light-sensitive materials
Inventor: DOUGLAS DAVID RAMSAY
IPC: G03C1/28
Filed: 1962-03-05
Abstract: 988,385. Sensitizing silver halide emulsions. ILFORD Ltd. May 17,1963 [March 5, 1962], No. 8416/62. Heading G2C. A photographic silver halide emulsion is sensitized with a water-soluble cadmium salt and a dyestuff of the formula wherein R and R 1  are alkyl or hydroxyalkyl groups, R 2  is an alkyl or aryl group, R 3  is an alkyl group, X is -O- or -NR 4  where R 4  is alkyl, aryl or substituted aryl,D and D 1  complete 5- or 6-membered heterocyclic nuclei and Y is an anion. The cadmium salt may be the chloride, sulphate or nitrate. The sensitizing dyes are prepared as described in Specification 544,645. In the examples, dyes are used wherein D and D 1  complete benzthiazole, naphthothiazole, benzoxazole, quinoline or thiadiazole nuclei, R 2  and R 3  are methyl and R 4  is phenyl.
Patent GB-1051214-A (GB)
IPC: B22D17/00
Filed: 1964-02-28
Abstract: 1,051,214. Casting-machines; casting composite electric rotors. G. TRIULZI, [trading as A. TRIULZI S.a.S.]. Feb. 28, 1964 [March 2, 1963], No. 8460/64. Heading B3F. [Also in Division B5] Mould parts 18, 19 are carried by arms 13, 14 which are rotatable about a vertical column 2 between a loading and unloading position and a moulding position between fixed and movable mould parts 5, 6 respectively. The mould parts 18, 19 are held by a divided clamping ring 20, 21 (Fig. 3, not shown), the half-ring 20 being opened and closed by an hydraulic piston 25. The mould parts are movable vertically relative to the clamping rings, or a hub 12 carrying the arms 13, 14 can be made slidable on the column 2. The invention is described as applied to the coating of the rotor 37 of an electric motor with metal. Molten metal is drawn by suction from a container 10 into a cavity 7 and injected by a ram 8. Indexing means 15, 15<SP>1</SP>, 16 are provided for the arms 13, 14.
Patent GB-1505142-A (GB)
Title: High current low pressure discharge device
IPC: H01J61/067
Filed: 1975-02-28
Abstract: 1505142 Metal-vapour lamp GENERAL ELECTRIC CO 28 Feb 1975 [4 March 1974] 8511/75 Heading H1D In a high current low pressure discharge lamp, e.g. for UV, an electrode 13 comprises a refractory metal hollow cylinder 21, containing coaxial filament 23, and internally coated with an emissive mix initially 24 on the filament and deposited by heating of the filament which is afterwards shorted 14-15 before operation of the lamp. A lamp envelope 10 of silica contains two such electrodes, rare gas and Hg25 : the emissive mix comprises alkali earths and rare earths, heated to 1100 C. to coat the hollow electrodes which in operation are heated by the A.C. discharge.