baber/WOPTO huggingface dataset:
Patent GB-1164895-A (GB)
Title: Improvements in or relating to Image Intensifier Devices
Inventor: MANLEY BRIAN WILLIAM
IPC: H01J29/02
Filed: 1967-03-29
Abstract: 1,164,895. Image intensifier tubes; electron multipliers. MULLARD Ltd. 29 March, 1967, No. 14226/67. Heading H1D. In an electronic imaging tube comprising a photo-cathode P spaced by an electron optical system from a channel intensifier device I, the channel intensifier is a secondary emissive electron multiplier device which includes a curved plate with the concave face towards the photo-cathode and with conductive input and output layers E1 and E2 on opposite surfaces and, passing through the plate, a large number of parallel elongated channels, and the electron optical system is such that principal rays, which are the paths of those electrons leaving the photo-cathode at right angles, are brought to a focus in front of the channel intensifier in the focal plane which is also curved and concave towards the photo-cathode. The shape of the input face E1 of the channel intensifier and the focal plane are made similar to obtain uniform resolution. Preferably the channels are uniformly tilted with respect to the common axis of the tube and channel intensifier, as described in Specification 1,164,894, so that the formation of a dark spot is avoided by preventing electrons from being able to pass straight through a channel without undergoing any multiplication. A channel intensifier having spherical surfaces and channels of equal length may be simply fabricated by forming first a flat block with tilted channels therethrough, Fig. 4A (not shown), and subsequently machining the flat surfaces such that they have equal radii with one centre on the tube axis and the other slightly displaced both along the axis and away from it, Fig. 4B (not shown). The imaging tube may be an image intensifier or converter tube with a diode type electron optical system when the conical anode A is connected to the input layer E1, or a triode type if the anode and layer El are unconnected and differently biased. Shaped fibre optic elements (FO 1) and (FO2) may be employed between the object and photo-cathode and as faceplace for the luminescent screen S, which may also be curved, Fig. 5 (not shown).
Patent GB-1040012-A (GB)
Title: Cleaning compositions
Inventor: DUTTON KENNETH RICHARD
IPC: C11D1/00
Filed: 1962-01-22
Abstract: Detergent compositions which are especially suitable for use in contact with the skin comprise (a) a fatty alcohol sulphate, preferably sodium, monoethanolamine or triethanolamine lauryl sulphate, (b) a compound of formula R.CO.Y.CO.CHR1.CHR11.COOX where R.CO is a C6- 20-fatty acyl group, one of R1 and R11 is H and the other is -SO3X or -O.SO3X, X is a cation capable of imparting water-solubility, Y is either -Z1.NR111- or -NR111.Z11-, where R111 is H, C1- 4-alkyl or -Z11H, Z1 is m units of -O(CH2)n-and Z11 is m units of -(CH2)nO-, where n is 2-4, and the total number of C atoms in the polyoxyalkylene chains is up to 60, and (c) a fatty acid alkanolamide, the proportion by weight of (b) present being at least 5%, and preferably 30-70% of the total of (a) and (b) present.  Many conventional detergent additives which may be added are disclosed, and the compositions may be produced as such, or in liquid, tablet, powder, emulsion, cream or paste form; in these latter events, the active matter present suitably comprises 5-50% of the composition.
Patent GB-528714-A (GB)
Title: Improved form of rotary internal combustion engine
IPC: F01C1/356
Filed: 1939-05-13
Abstract: 528,714. Rotary engines. KEEN, F. H. May 13, 1939, No. 14319. [Class 110 (ii)] A rotor with two humps 12, 13 co-operates, within a stator 15, with three sliding abutments 25, 26, 27. An explosive charge is drawn in at an inlet valve 41, by the hump 13, compressed into a pocket 43 by the hump 12 and exploded behind it. The abutment 27 is raised to its extreme position by the hump and is retained there during the expansion period by a cam-controlled detent 32. The abutment 26 is similarly held by a detent 32 during the induction and compression periods. The disposition of the humps and the abutments provides for a compression ratio of, say, 6 to 1 and an expansion ratio of. say, 20 to 1. The sides of the humps and of the abutments have spring packings 23, 24, 31 and the contracting surfaces of the humps have spring packings 22 of a cross formation. The centre of the rotor may be formed as an axial flow fan to provide a current of cooling air. Several equal motors may be arranged on one shaft. A rotor with one hump can be arranged to produce the same cycle in two revolutions.
Patent GB-567906-A (GB)
Title: Improvement in cross rolling mills
IPC: B21B19/02
Filed: 1943-09-02
Abstract: 567,906. Rolling tubes &c. FUERY, G. T. (Diescher Tube Mills, Inc.). Sept. 2, 1943, No. 14327. [Class 83 (iv)] Skew-rolling mills for rods and tubes, including piercing billets to form tubes, but particularly for tubes so rolled on a mandrel 12 that metal caused to bulge by one roll is forced back towards the other roll by support rolls 15, have the parts preloaded so that variations in size of the product are avoided. The support rolls are detachably secured to overhung flanges 25 on shafts 22 supported in roller bearings 30, 31 and ball thrust bearings 32. The mounting sleeve 23 is adjusted on a vertically adjustable carriage 33 by a lug 35 having a screw 36 engaged by a worm-wheel nut 37. Preloading is effected by a similarly mounted and adjusted spindle 40, hollow and loosely keyed to an internal spindle 50 having limited play on a spherical seating 51 and imparting end thrust to the spindle 22 through a spherical seating 52 thereon, the spindle 50 being driven through a loosely fitting key 53. Hydraulic pressure may be used to effect the loading instead of the worm gear 57. The skew rolls 10 have pass adjusting screws 21 and the preloading is effected by hydraulic rams 70 engaging the chucks at each side of the pass and above and below the mandrel ; being removably held in place by mounting in holes in the water shields 72. Specification 380,000 is referred to.
Patent GB-574820-A (GB)
Title: Improvements in or relating to apparatus for discharging a relatively non-volatile substance or relatively non-volatile substances to the atmosphere
IPC: B01F13/00
Filed: 1943-09-02
Abstract: 574,820. Spray-producers. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Sept. 2, 1943, No. 14359. Convention date, Aug. 28, 1942. [Class 69 (iii)] [Also in Groups VI and XXVIII] In apparatus for producing an aerosol of a relatively non-volatile substance, a hermeticallysealed cylindrical metal receptacle, formed from two bell-shaped parts 12 and 13, is provided with a capillary flow-controlling device 15 and a safety device 23 to release the contents of the container if the pressure inside becomes too high. The non-volatile substance is mixed in the container with a highly-volatile liquid or liquefied gas and the mixture is discharged on breaking off the sealed end of the capillary tube at a groove 18. The flow may be stopped temporarily by placing a rubber cap over the end of the tube. A portion of the bottom of the container may be shaped into a pocket 20 to receive the inner end of the tube. The safety device 23 preferably consists of a clover leaf-shaped piece of thin metal brazed over a small hole.
Patent GB-259916-A (GB)
Title: Improvements in or relating to welding or cutting by the electric arc
IPC: B23K9/067
Filed: 1926-06-07
Abstract: 259,916. Soc. Alsacienne de Constructions MÚcaniques. Oct. 15, 1925, [Convention date]. Heating by electricity.-A two-phase arc welding or cutting arrangement employs two electrodes 3 juxtaposed but insulated from one another, the electrodes being connected to the different phases and the distance between the ends of the electrodes being so small, for example 1 millemetre. that each arc contributes to the striking of the other. A switch 7 fitted in the supply circuit of one electrode is controlled by a coil 6 in a subsidiary circuit having a switch 12 contained in the electrode holder. Two electrodes maintained in parallel relationship in a twin holder or two electrodes agglomerated together by insulating material may be used. The primary coils 1 of the welding transformer are fed from a three phase supply by means of a Scott connection.
Patent GB-1480577-A (GB)
Title: Method for the manufacture of artificial solid stone
IPC: C04B33/04
Filed: 1976-04-08
Abstract: 1480577 Heating soil deposits in situ to form solidified aggregates for civil engineering uses R HUBMANN 8 April 1976 [11 April 1975] 14386/76 Heading E1F Aggregates for civil engineering uses are formed by slowly heating in situ a natural deposit of a clayey raw material by the introduction of sufficient heat to cause, with the liberated heat of reaction, conversion of the material into a stable solid aggregate, e.g. a brick or crystalline stone material, which is subsequently cooled slowly. Preferably the bed may be terraced and the bed or each terrace thereof is divided by insulating bores or slits 1 into adjacent sections 2, and each section is provided with at least one combustion channel 3 and at least one waste gas vent 4, 5. The channels and vents can be sequentially connected as shown at 6 so that each section, after conversion of the material in it, is cooled by passing cooling air therethrough with the resulting heated air from the cooling section being employed as secondary combustion air for the combustion of a heating medium in the conversion of the material of the adjacent succeeding section and the waste gases from the combustion being employed to dry and preheat the material of the next section to be converted.
Patent GB-168378-A (GB)
Title: Improvements in burners for engines, furnaces, and the like
IPC: F23D11/10
Filed: 1920-05-27
Abstract: 168,378. Goold, L. W., (Carrey Rotary Engine Co.). May 27, 1920. Spray burners.-The flange 4 of a burner nozzle 3 having flared ends is clamped between the mixing-chamber 1, secured to the combustion chamber A, and a clamp member 2. Air is admitted through the passage 5 terminating in a restricted nozzle 6 within the flared opening of the burner nozzle and causes the liquid fuel to be drawn through the passage 7 into the mixing-chamber above the nozzles 3, 6, from which chamber it is projected into the combustion chamber A. The nozzle 3 is preferably made of non-metallic refractory material.
Patent GB-689794-A (GB)
Title: Apparatus for delivering materials in measured quantities by volume
IPC: G01F11/28
Filed: 1950-06-09
Abstract: 689,794. Delivering measured quantities by volume. JONSSON, H. B. June 9, 1950 [June 15, 1949], No. 14463/50. Class 106 (v) Apparatus for delivering material in measured quantities by volume from a container 1 comprises a measure connected to the container, the measure including a first tube 3 secured to the container and provided with an inlet slide valve 15, a second tube 4 slidable in the first tube and provided with an outlet valve in the form of a plate 9 pivoted to the inside wall of said second tube 4, and an arm 10 for actuating said plate 9 pivoted to an operating handle 11 slidable in a longitudinal aperture 12 in the second tube. The two tubes are locked in their adjusted position by a screw 5 moving in a longitudinal aperture in the tube 3.
Patent GB-239918-A (GB)
Title: Food product and process of making same
IPC: A23L1/00
Filed: 1924-06-16
Abstract: 239,918. Perky, S. H. June 16, 1924. Drawings to Specification. Rolling-machines.-A food product, such as boiled wheat, is formed into a ribbon having corrugations or other surface inequalities such that when it is formed into a roll there will be interstices between adjacent convolutions. The end of the ribbon may be left flat so that the outer surface of the roll or part of it, is flat. A corrugated or imbricated ribbon may be formed by delivering the ribbon as it issues from rolls on to a band moving with a varying velocity or a velocity less than that of the issuing ribbon.
Patent GB-1185665-A (GB)
Title: Ballast Composition for Electric Devices
IPC: H01F27/02
Filed: 1967-03-30
Abstract: 1,185,665. Ballast compositions. MATSUSHITA DENKO K.K. 30 March, 1967 [4 April, 1966; 7 Oct., 1966; 11 Oct., 1966; 17 Oct., 1966 (2); 9 Nov., 1966], No. 14581/67. Headings C3P and C3R. A ballast for electrical apparatus charged with a composition comprising a first organic material having a largest or maximum value of the loss factor d in the temperature range 0‹ to 40‹ C., and a second organic material having a largest or maximum value of the loss factor d in the temperature range 50‹ to 250‹ C. Preferred first materials are straight or blown asphalt and polyurethane and the preferred second material is an unsaturated polyester. The compositions may also contain hydrated inorganic compounds. In the examples are used: an unsaturated polyester resin prepared from a polyester of maleic anhydride and propylene glycol reacted with xylene resin and mixed with hydroquinone and styrene, polyol, tolylene diisocyanate, cobalt naphthenate, dimethyl ethanolamine, methyl ethyl, ketone peroxide, silica sand or powder, blown or straight asphalt, polyurethane resin and rubber, pitch, quartz sand, benzoyl peroxide, dimethyl phthalate, calcium carbonate, castor oil, dimethyl aniline, unsaturated polyesters derived from ethylene, diethylene or propylene glycol and maleic anhydride, adipic acid, succinic acid or phthalic anhydride and styrene or vinyl toluene, polyurethanes derived from toluene diisocyanate or naphthalene diisocyanate and polyols, e.g. castor oil, glycerine or pentaerythritol or a polyether, clay, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl- 1,3-butanediamine, polyether resin, diethyl aniline, natural asphalt, petroleum asphalt, gilsonite, glass fibres, methyl aniline aluminium hydroxide, CaO 2 .8H 2 O, SrO 2 ,8H 2 O, BaO 2 .8H 2 O, SnCl 2 .2H 2 O, BaCl 2 .2H 2 O, CuSO 4 .3H 2 O, Al 2 O 3 . SH 2 O, ferric chloride and tung oil.
Patent GB-364994-A (GB)
Title: Improvements in photographic three-lens objectives
IPC: G02B13/00
Filed: 1931-05-18
Abstract: 364,994. Lenses. ZEISS, C. [Firm of], Carl-Zeiss-Strasse, Jena, Germany. May 18, 1931, No. 14592. Convention date, May 27, 1930. [Class 97 (i).] An astigmatically corrected three-lens photographic objective having an aperture between f/4 and f/5 and a vertex length less than f/4, and consisting of a dispersive lens enclosed with air spacing between two converging lenses, is characterized by the features that the first of the two air spaces l1 is the smaller one, that the numerical values of the radii of curvature of the surfaces r1, r4 each amount to À20 to À26 of the focal length of the objective, and that the distance between the vertices of these surfaces is greater than À075 of the focal length. The refractive index of the lens III exceeds 1À63. Numerical data are given in the Specification.
Patent GB-500692-A (GB)
Title: Converter coupling for vacuum cleaners
IPC: A47L5/32
Filed: 1938-05-17
Abstract: 500,692. Vacuum - cleaner pipe couplings. SCOTT & FETZER CO. May 17, 1938, No. 14664. Convention date, June 3, 1937. [Classes. 8 (i) and 99 (i)] A vacuum cleaner is provided with a dusting tool converter attachment consisting of a tube 17 to which a flexible hose 27 is connected, passed through a normally closed aperture in the front wall and provided with a rubber flange 25 which forms a seal for the fan case inlet 13. The tube 17 is provided with guide wings 20 and a spring latch 21. The brush is normally driven by a removable belt 11 from the fan shaft. Specification 406,039 is referred to.
Patent GB-947308-A (GB)
Title: Improvements in or relating to nuclear-chlorinated aromatic compounds
IPC: C07C17/14
Filed: 1960-04-27
Abstract: A mixture of isomeric dichlorotoluenes including the 2,6-isomer is chlorinated in the presence of light and in the absence of a nuclear halogenation catalyst to produce a mixture of 2,6-dichlorobenzal chloride and dichlorobenzo-trichlorides and the 2,6-dichlorobenzal chloride is separated from the mixture.  This separation may be effected by treating the mixture with steam, hot water of dilute mineral acid to hydrolyse the benzotrichlorides to the corresponding benzoic acids, making the hydrolysate alkaline to bring the benzoic acids into solution as soluble salts and 1 separating the isoluble dichlorobenzal chloride from the solution. The benzal chloride may be hydrolysed, preferably with 93% by weight sulphuric acid, to 2,6-dichlorobenzaldehyde either before or after separation from the benzotrichlorides. In the former case both components are hydrolysed and the benzaldehyde may be separated from the benzoic acids by converting the latter into water soluble salts.  Examples are given. Specification 862,863 is referred to.ALSO:A fungicidal composition comprises 2,6-dichlorobenzaldehyde mixed with a solid or liquid inert carrier, with or without one or more other additives comprising surface-active agents, dispersion agents and adhesives.
Patent GB-1344123-A (GB)
Title: Fabric feed device
IPC: D05B35/12
Filed: 1971-05-13
Abstract: 1344123 Work feeding NECCHI SpA 13 May 1971 [15 May 1970] 14842/71 Heading D1G Work is moved, between the action of sewing successive button holes, by work engaging means (37, 38 Fig. 1 not shown) carried on an arm 33 extending transversely from a piston rod 17 which is moved axially, by a piston 18 in a cylinder 10 to provide feed advance and return movement of the means (37, 38) the cylinder and piston being arranged to oscillate about their axis to move the means towards and away from the work at the beginning and end of the feed advance movement. The oscillation is provided by a piston 49 disposed in a transversely disposed cylinder 50 and bearing a block 46 engaging a fork 45 on a member 27 secured to the cylinder. Oscillation of the cylinder is transmitted to the piston 18 by a block 30 secured to the piston rod 17 and engaging a slot in the member 27. The block bears a mark (71) co-operating with a scale (69) on member 27 to indicate the distance between button holes fed by the device when the stop 39 has been adjusted by screw member 42 and lock nut 43 to determine the rightwards limit of the piston. Air inlet posts 66 and 44 to the cylinder 10, other posts (59 59', Fig. 3 not shown) are provided for the transverse piston. To control the operation of the pistons in sequence to provide movement of the feed means 27 in a rectangular path and control the operation of the button holing machine a multiway valve 25 is provided, operated by rod 17 at the end of its stroke and a further valve (63, Fig. 1) actuated by a projection (60) on member 27 as the latter is turned by the piston 49. One of the work gripping pads (37) is arranged to be adjustable relatively to the other parallel to the axis of cylinder 10.
Patent GB-881034-A (GB)
Title: Method of cutting cigar binders or wrappers
IPC: A24C1/04
Filed: 1957-11-19
Abstract: The subject-matter of this Specification is identical with that of Specification 881,033 but the claims relate to the cutting of cigar binders of non-rectangular shape and full web width from a web the width of which is greater than the length of a cigar to be formed using the binder.  Specification 881,035 also is referred to.
Patent GB-919966-A (GB)
Title: Improvements in alternating current arc welding systems
Inventor: JENNINGS ROBERT EDWARD
IPC: B23K9/10
Filed: 1958-05-13
Abstract: 919,966. Control systems for welding arcs. BRITISH OXYGEN CO. Ltd. May 12, 1959 [May 13, 1958], No. 15291/58. Class 38 (4). To avoid high voltages between working electrode 6 and workpiece 7 during non-welding periods, a relatively low voltage is supplied by an auxiliary transformer 2 having its primary winding 2a connected across the secondary winding 1b of the welding transformer 1 and its secondary winding 2b connected in a circuit which includes in series normally closed auxiliary contacts 4b of a welding contactor 4, the A.C. terminals of a bridge rectifier 11, the electrode 6 and workpiece 7. The operating coil of a delayed relay 9 is connected across the D.C. terminal of rectifier 11. A neon indicator lamp 8 connected across the normally open main contacts 4a of contactor 4, is illuminated only when these are open and the set is " safe." When electrode 6 touches workpiece 7 to commence welding, relay 9 becomes energized and closes its contacts 9a. Contactor 4 responds and closes the welding circuit at contacts 4a, thus enabling the full welding current (adjusted by reactance 5) to flow to the arc. Contacts 4b open just after closure of contacts 4a, but relay 9 remains held in by current supplied over contacts 4a and resistor 10. Specifications 769,433 and 803,534 are referred to.
Patent GB-612845-A (GB)
Title: Improvements in or relating to a foldable chair and table combination
IPC: A47B83/02
Filed: 1946-05-21
Abstract: 612,845. Combined nursery seats and tables. STEVENS, A. H. (Metropolis Bending Co.). May 21, 1946, No. 15328. [Classes 52 (ii) and 52 (iii)] A combination foldable chair and table comprises an opening in the table top within which the chair is suspended by means of front hangers on the table top and in which the chair has two sections of fabric to form the back, seat and leg rests. As shown the table top 11 is provided with bordering battens 10, 10a, 10b, 10c to which legs 12 are pivoted. The table top 11 is provided with an opening within which a foldable child's chair is arranged. Members 22 border the aperture C leaving slots 22a, 22b, 22c, 22d. The chair comprises a transverse fabric sheet 25, 27, loops on the ends of which pass through the slots 22b, .22c and held in place by rods 28, 29. A second fabric strip 19-21 forming the back rest, part of the seat and the leg rest is provided one end being looped and passed through the slot 22a and the other end passed through a slot in a footrest 38-40 and secured to foldable extensions 33, the footrest being adjustably pivoted to the extensions 33. Stiffening plates are provided for the back and the seat.
Patent GB-1026381-A (GB)
Title: Improvements in or relating to frequency responsive devices
Inventor: OVENDEN RAYMOND EDWARD
IPC: G01R29/027
Filed: 1961-04-27
Abstract: 1,026,381. Frequency detectors; automatic frequency control systems; transistor circuits. DE HAVILLAND AIRCRAFT CO. Ltd. April 27, 1962 [April 27, 1961], No. 15334/61. Headings H3A and H3T. [Also in Division H2] In an aircraft A.C. supply system the highest or lowest permissible A.C. frequency (a function of engine speed) gives a signal warning. The A.C. may be connected to a Schmitt trigger circuit T 1 , T 2  producing a square wave output of equal frequency applied to a differentiating capacitor 5 to produce positive going pulses operating a bi-stable circuit T 4 , T 5 , one of whose output pulse trains is differentiated at capacitor 12 and positive going pulses passed by rectifier 15 to a monostable circuit T 6 , T 7  producing negative going output pulses of fixed duration. These are applied to the base of transistor T 8  of a super alpha gate circuit T 8 , T 9  to the emitter of whose transistor T 9  negative going pulses of variable duration (the other intermediate pulse train) from bi-stable circuit T 4 , T 5  are applied, so that T 9  is conductive only when the fixed duration pulses at T 8  are of greater width than the variable width pulses on T 9  commencing at the same instant, i.e. only when the A.C. frequency is too high. Positive pulses are then passed over a rectifier to a silicon controlled rectifier switch 21 which switches on continuously an alarm or warning device across terminals 24, 25. The switch 21 can only be reset by switching off the operating D.C. potential. Alternatively, the device 21 may switch off the A.C. supply, or may operate when an A.C. frequency is too low, or may reduce the frequency of the A.C. supply source if too high.