baber/WOPTO huggingface dataset:
Patent GB-367913-A (GB)
Title: Improvements relating to copper salt compositions particularly as a preservative liquid for treating timber, fabric and other materials
IPC: B27K3/36
Filed: 1930-11-29
Abstract: Copper-containing water emulsions suitable for proofing timber fabric and other materials against fungi, dry rot, termites, &c., are prepared by dispersing in water with the aid of turkey red oil or other emulsifying agent, a solution of a substantially water-insoluble copper salt of a higher fatty acid in an organic solvent which is slightly or completely soluble in water.  Copper oleate or other copper salts of saturated or unsaturated fatty acids may be used.  The organic solvents employed include alcohols such as butyl or amyl alcohol, ketones such as diacetone alcohol, and esters such as butyl lactate or amyl acetate.  With solvents, such as butyl alcohol, more soluble in water, a salting-out agent such as sodium chloride or sulphate may be employed to decrease their solubility.
Patent GB-434636-A (GB)
Title: Process for applying a metallic coating to the surface of wood
IPC: C23C4/02
Filed: 1934-12-17
Abstract: Wood surfaces are metallized by first spraying on a coating of a readily fusible metal, e.g. aluminium, and then spraying on a layer of a metal such as bronze or steel having a higher melting point than the metal constituting the first coating.  A layer of organic material such as glue may be applied to the wood, for example by spraying, before the metal coatings are applied and the surfaces may be roughened before the spraying.  The outer metal layers may be polished.  The metallized wood may be used for air screws, coverings for aircraft, ships' hulls, wall plates, roofings, &c.
Patent GB-450832-A (GB)
Title: Process of improving the resistance to corroding agents of aluminium base alloys
IPC: C22C21/06
Filed: 1934-12-24
Abstract: 450,832. Improving aluminium alloys. 1. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Dec. 24, 1934, No. 36152/33. Addition to 432,351. [Class 72] In the process for improving aluminium alloys containing 6À5-16 per cent of magnesium as described in the parent Specification, the segregation of # particles which are rich in magnesium as compared with the basic x crystals is produced by cooling the alloys, subsequent to the production of the more or less homogeneous structure, to within a temperature range defined by the hatched portion of the accompanying diagram, and maintaining them within this range, e.g. for 1-2 hours, until such segregation takes place The alloys may be cooled down either naturally or by immersion in a bath of oil or fused salts maintained at a temperature within the said range.
Patent GB-1139783-A (GB)
Title: Process and composition for etching ferrous metal surfaces
IPC: C23G1/08
Filed: 1967-08-08
Abstract: 1,139,783. Etching. CONVERSION CHEMICAL CORP. 8 Aug., 1967 [26 Sept., 1966], No. 36285/67. Heading B6J.  For etching ferrous metals, an etchant provided as a powder composition for addition to water comprises 80-95% by weight of urea nitrate and 20-5% of an acidic compound, being a dry acid such as boric acid, tartaric acid, citric acid, succinic acid, amalic acid or gluconic acid delta-lactone, or an acidic tartrate or sulphate of an alkali metal, alkaline earth metal or ammonia, or boric acid mixed with ammonium acetate. There may also be added 0.5-5% of a powdering agent such as calcium silicate, and surfactants.
Patent GB-437772-A (GB)
Title: Improvements in and relating to electric motor control systems
IPC: H02P7/34
Filed: 1934-12-20
Abstract: 437,772. Control of D.C. motors; controllers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Dec. 20, 1934, No. 36569. Convention date, Dec. 22, 1933. [Class 38 (iii)] Varying E.M.F. ; regenerative braking. -A series traction motor M is controlled by a controller 15 which varies the voltage applied to the motor from a dvnamotor machine D subdividing the line voltage, means being provided including a lost motion connection 32 between the controller and its operating handle 30, for regeneratively braking the motor when the controller occupies any one of its positions. The motor circuit includes an auxiliary compound-wound generator 12 driven with the dynamotor whereby gradual transition from one step of voltage to the next is obtained. At the first position of the controller 15, the motor circuit includes only the auxiliary generator, but at succeeding steps the voltage of the generator is supplemented by increasing voltages from the dynamotor. Upon backward movement of the controller handle 30 from any position, the lost motion connection causes a switch 31 to connect the auxiliary generator 12 across the motor field 11, so that the motor is regeneratively braked.
Patent GB-793686-A (GB)
Title: Improvements in journal lubricators
IPC: B61F17/06
Filed: 1956-11-30
Abstract: 793,686. Bearing lubrication. WAUGH EQUIPMENT CO. Nov. 30, 1956 [Oct. 22, 1956], No. 36712/56. Class 12 (3). A journal lubricator comprises a jacket of fibrous material having a pad at its top adapted to engage the surface of the journal and a plurality of wick sections extending downwardly from the pad and defining pockets extending transversely of the pad and open at both ends, and a filler of resilient material within each pocket and projecting out of the ends thereof, the filler having a mid-section filling the pocket snugly, and end sections lying outside the pocket. In a journal box of a railway car, as shown, in Figs. 1 and 2, the lubricator has a jacket 10 formed from a strip of material folded over to form a pad 12 and secured by rows of stitching 18 in a series of loops 15 to the pockets 13. The pockets are filled by fillers 21 of resilient material the mid-sections 22 of which keep the pad 12 resiliently pressed against the surface of the journal 31, and the end sections 23 of which rest against horizontal lugs 33 formed on the inner surface of the journal box 30. The end sections 23 have lateral projections 27 around which a strap 20 is looped to encircle the fillers and the projections are laterally in contact with each other so that the pile between the mid-sections of the fillers is not subjected to pressure. The jacket is provided with a looped handle 19. In a modification a sponge rubber filler 34 (Fig. 8, not shown) has a recess 40 to provide a passage for the oil in the bottom of the journal box.
Patent GB-801267-A (GB)
Title: Improvements in or relating to infinitely variable friction wheel gears
IPC: F16H15/52
Filed: 1954-12-20
Abstract: 801,267. Variable-speed gear. BEIER, J. Dec. 20, .1954 [Dec. 18, 1953], No. 36790/54. Class 80 (2). A variable-speed friction gear comprises three pairs of groups of coned friction discs 5a, 5b, each pair splined on a countershaft 6 adjustable bodily radially with respect to aligned shafts 1, 4, either of which may be input, the other output, carrying respectively groups 2, 3 of slidably keyed discs having external and internal thickened and preferably coned rims, e.g. 2<SP>1</SP>, which interpenetrate the coned discs 5a, 5b for variable radius friction contact as the counter shafts 6 are moved radially to vary the speed ratio. The discs of the packs 2, 3 are pressed togetner axially for traction pressure by springs 14, 9 respectively, which are sufficient for idle speed drive, and are supplemented under load by cam pairs 23, 24 and 41, 42 responding to torque on the respective shafts 1, 4. The three countershafts 6 are carried on bell cranks 27 which, to vary the radial position of the countershafts, for ratio-shift, are turned about fixed pivots 28 by turning a pinion 38 meshing segmental teeth 37 on a rotatable ring 33 having radial slots receiving slide-blocks 32 carrying pivots at the free ends of the bell-cranks 27. The traction pressure cam device on the shaft 1 comprises members 23, 24 having axially projecting teeth with helical interengaging surfaces 26, the member 23 being fast on the shaft 1 whilst the freely mounted member 24 carries a presser plate 15 compressing the discs 2 against an axially fixed back plate 8. The spring 9 and cam pair 41, 42 associated with the other shaft 4 similarly compress the discs 3 between an axially fixed back plate 17 and an axially movable presser plate assembly 16, 7 in which the discs are splined, the cam member 42 being fast on the shaft 4, and the movable presser plateassembly 16, 7 being urged in the opposite direction to that 15 of the discs 2. Thus, since the axially fixed back plates 8, 17 are arranged on the outside of the discs, the overall length occupied by both disc groups 5a, 5b on the shaft 6 does not vary in any position of adjustment. The cain inclination is such as to cause the axial component to increase more rapidly than the torque. The bores of the discs 5a, 5b are arcuate to permit slight tilting on the shaft 6, although the disposition of pressure and back plates shown does not cause inclination of the discs. The fixed casing may form part of the body of a motor.
Patent GB-368383-A (GB)
Title: An improved process for the initiation of chemical reactions in closed vessels
IPC: F21K5/08
Filed: 1930-12-05
Abstract: <PICT:0368383/III/1> Chemical reactions in closed containers involving the production of light are initiated by causing identical or similar reactions to take place in the vicinity of the closed containers.  In the Figure a photographic flash - lamp 1 such as described in Specification 324,578, [Class 75 (i), Burners &c.], is shown adjacent to flash-lamps 1b, 1c, 1d which contain metal foils and oxygen similarly to the flash-lamp 1 but need not be provided with ignition devices.  If the flash-lamp 1 is ignited by means of its electrical ignition device 4 the flash-lamps 1b, 1c, 1d, arranged at about half an inch apart, will ignite almost simultaneously. This ignition is stated to be due to radiation of a wavelength of 550 to 630m m .  The Specification as open to inspection under Sect. 91 (3) (a) stated that the secondary reaction need not serve for the production of light and may be used "to initiate any other desired process such as, for example, a blasting operation." p  This statement does not appear in the Specification as accepted.
Patent GB-747170-A (GB)
Title: Improvements in and relating to regenerative coke ovens
IPC: F28D17/02
Filed: 1953-07-28
Abstract: 747,170. Coke ovens. COPPEE & CIE., E. July 28, 1953 [Sept. 20, 1952], No. 36867/54. Divided out of 747,104. Class 51(2). In a regeneratively fired coke oven battery in which the regenerators are parallel to the coking chambers which widen towards the discharge side of the oven, the said regenerators are divided by vertical transverse partitions 7 into so many compartments 6 as there are in each heating wall independent groups of heating flues communicating with the compartments, the pair of compartments at each end 8 and 10 respectively being of greater horizontal cross-sectional area than the other compartments. The compartments 8, which are at the discharge side of the battery, are themselves of greater cross-sectional area then the compartments 10. In addition, each regenerator is divided into groups of cells 12 .... 16, in which the cells of each group are of equal size, but from one group to the next the horizontal cross-sectional area increases from the pusher side to the discharge side of the battery.
Patent GB-887047-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K1/16
Filed: 1958-11-18
Abstract: 887,047. Core constructions. TELLERT, F. Nov. 18, 1958, No. 37058/58. Class 35. The slots in a square stator lamination for a dynamo-electric machine progressively decrease in cross-sectional area and depth from the corners to the centre of each side of the plate, and the tooth pitch and width progressively increase, so that the magnetic reluctance is substantially constant around the periphery of the plate. In the case of a singlephase motor the working phase windings occupy slots at the corners in staggered fashion with different numbers of conductors per slot. The auxiliary phase windings occupy the slots in the sides of the square plates. A number of laminations are secured together to form a stator core by means of clamps surrounding the corners or by welding together small tongues adjacent the corners. Specification 523,934 is referred to.
Patent GB-523112-A (GB)
Title: Improvements in and relating to relief valves
IPC: F16K17/08
Filed: 1938-12-23
Abstract: 523,112. Pressure relief valves. SAUNDERS VALVE CO., Ltd., and TRUMP, A. L. Dec. 23, 1938, No. 37427. [Class 135] A spring-loaded relief valve has an ebonite valve member 8 secured to a stud 7 partly embedded in an imperforate diaphragm 5 clamped between two parts of the casing and subject to the pressure on the down stream side of the valve A loading spring is arranged in the valve bonnet 4 between abut ments 9, 12, resting against the diaphragm and ar adjusting screw respectively. Specifications 321,892, 362,084, 434,665, 434,684, and 442,790, [Class 135], are referred to..
Patent GB-794020-A (GB)
Title: Improvements relating to printed electrical circuits
IPC: H05K3/06
Filed: 1955-12-30
Abstract: 794,020. Printed circuits. GENERAL ELECTRIC CO. Dec. 30, 1955 [Jan. 3, 1955], No. 37453/55. Class 37. A printed circuit is formed by electrostatically charging the upper surface of a member 25 having a photoconductive upper layer 28, a conductive layer. 27 and an insulating base 26, discharging portions of the surface in a given pattern by irradiation, depositing dust on the surface that adheres only to the charged portions, consolidating the dust, removing the exposed portions of the layer 28 and then treating the member 25 so as to leave only the required portions of the layer 27 on the base 26. The layer 28 may be of sulphur or anthracene, for example, and may be applied as a solution in a volatile solvent to the oxidized surface of the layer 27, which is of copper. The layer 28 is charged by rubbing in the dark, and portions of the charged surface are then exposed to light through a suitably patterned member and thus discharged. A fine powder of resin or wax is dusted over the surface and adheres to the still .charged portions. The dust may firstly be suitably charged to enhance adhesion and the member 25 may be heated to melt the dust and improve the adhesion. The member 25 is then immersed in a bath of hydrochloric acid to remove those portions of the layers 28 and 27 which are not protected by the dust deposit. Finally, the dust deposit and the underlying part of the layer 28 are removed in a suitable bath, leaving the remaining portions of the layer 27 in the desired pattern on the base 26. In an alternative method, a negative of the desired design is formed on the charged surface, the portion 30 then being unprotected by the dust layer. The underlying portions of the layer 28 are then removed in a suitable bath, and the void thus formed filled with conductive material. The remaining dust deposit, the underlying layer 28 and portions of the layer 27 not covered by the conductive deposit are removed, leaving a conductive pattern on the base 26.
Patent GB-1518716-A (GB)
Title: Girder in particular for a dismountable bridge composed of of interlocking units
IPC: E01D19/00
Filed: 1976-09-09
Abstract: 1518716 Box girders; bridges FRIED KRUPP GmbH 9 Sept 1976 [10 Sept 1975] 37475/76 Headings E1G and E1K [Also in Division F2]  A box girder section, particularly for a bridge consisting of two or more box girders each composed of centre sections 1, ramp sections 2, 3, and bridging plates (10, Fig. 3, not shown) between the upper walls 5, Figs. 11 and 13, of the girders, is of triangular or trapezoidal section and is composed of separate top, base and outwardly inclined side walls of which the latter are connected to the base by interlocking formations 17, 28, Fig. 13, requiring relative pivoting between the respective side wall and the base to engage them, each side wall being pivoted outwardly relative to the base during such engagement, so that when the top wall is fitted the assembly is stable and the formations 17, 28 are prevented from being disengaged. Considering each centre section 1, base 6 is formed of extrusions 12, 13 welded together at 14, which weld extends along the longitudinal centre line of the base. A series of the formations 17 and opposed locating formations 18, upstanding from a plate 16, are produced from continuous rib formations on the extrusions by machining. Each of the inclined side walls (8), 9 is also formed from two extrusions 23, 24, Fig. 13, welded to a pair of bridging plates 25, and each being provided, in similar manner to the extrusions 12, 13. with a series of recessed areas 31, each resting on a plate 16 of the base, a corresponding series of formations 28 interlocking with the formations 17. and a series of heel formations 29 engageable with the locating formations 18. The upper extrusion 24, however, is not interlocked with the top wall 5 which has locating formations 35 instead of formations 17, so that the top wall can simply be placed in position after assembly of the side walls to the base. Each ramp section is similar to a central section except that its cross-sectional shape is a trapezium with a progressively widening base 7, Fig. 11, towards the end of the bridge. The end section 3 includes a shore member 4. The various sections 1, 2, 3 are connected together end to end by teeth 36, (37) which may have either flat (38) or curved (39) upper and lower edges (Figs. 7, 8, not shown).
Patent GB-995637-A (GB)
Title: Process for the separation of aqueous suspensions of carbon black
IPC: C09C1/48
Filed: 1961-10-19
Abstract: Carbon black is removed from an aqueous suspension thereof by mixing said suspension with a water-immiscible auxiliary liquid to form an aqueous phase and a mixture of carbon black and auxiliary liquid, passing at least the aqueous phase through a collecting vessel to the top of which are supplied agglomerates of carbon black and the water-immiscible liquid such as to build up a layer of agglomerates which is at least partly flowed through by the aqueous phase, removing from the middle region of the vessel agglomerates substantially separated from the aqueous phase and removing the aqueous phase from the bottom of the vessel. It is preferred that the aqueous phase and the agglomerates be continuously passed through the collecting vessel and that the liquid level in said vessel be kept constant.  Agglomerates of carbon black with a hydrocarbon or hydrocarbon fraction boiling at 190-340 DEG  C. are very suitable and it is preferred to employ agglomerates prepared from the original carbon black suspension. The collecting vessel may be a vertical vessel having the bottom, or parts thereof, permeable to water but not to agglomerates and this permeable section may consist of porous or perforated material.  Agglomerates may be removed from the middle region of the vessel by locating the agglomerate supply and discharge lines such that the top of the agglomerate layer slopes towards the discharge line, preferably at an inclination deviating by not more than 15 degrees from the angle of repose of the agglomerates.  The agglomerates below the discharge line may be removed by scooping from the top or, preferably, by removal from the bottom, either intermittently or continuously, with or without the flow of aqueous phase and/or agglomerates being interrupted. Removal from the bottom may be facilitated by a flat bottom inclined, at an angle of at least the angle of repose minus 15 degrees, towards the agglomerate discharge line.  It is often advantageous to remove the entrained water from the agglomerates by passing them on to a conveyer belt, which is permeable to water but not to agglomerates.  An apparatus for performing the process of the invention is described.  Reference has been directed by the Comptroller to Specifications 834,940, 834,989 and 846,219.
Patent GB-821662-A (GB)
Title: Improvements in or relating to aircraft jet propulsion arrangements
Inventor: ORFORD ROY CHALICE
IPC: B64C23/00
Filed: 1956-12-11
Abstract: 821,662. Jet-propelled aircraft. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Sept. 11, 1957 [Dec. 11, 1956], No. 37826/56. Class 4. A fuselage 11, Fig. 2, houses a ducted fan or by-pass type of jet-propulsion engine (not shown) which exhausts into two co-axial jets, the inner main propulsive one being contained by a jet pipe 16 and the outer secondary annular jet being led by by-pass ducting 13, 14 to two slot nozzles 15 at the inboard trailing edges of the wings. Each nozzle is provided with a narrow-chord flap 18 so that the secondary propulsive gas stream flows over the top surface of the flap, which by downward deflection, exerts a Coanda effect on the stream. In the arrangement of Fig. 3, each wing houses two by-pass engines 19, 20 which exhaust main propulsive jets into nozzles 21, 22 above the wing and secondary elongated jets into orifices 23 which overlap into interdigiter orifices 24 above a deflectable flap 25. Further arrangements are described for engines arranged in pods supported by pylons beneath the wings. In one, each annular by-pass gas stream is led through a duct in the pylon to slots arranged in the trailing edge of the wing above a deflectable flap. In another, the by-pass stream is ejected from a slot above the rear part of the pod, from which it is deflected upwardly and rearwardly by an axially-movable flap into the vicinity of a hinged flap on the trailing edge of the wing. This flap forms a slot with the wing and is also formed with a spanwise slot extending from its lower surface to its upper surface, whereby the gas stream impinges on the under surface of the flap and passes through the slots to increase wing lift.
Patent GB-622692-A (GB)
Title: Improvements relating to mirrors
IPC: B60R1/08
Filed: 1946-12-30
Abstract: 622,692. Read vehicles. HUSBANDS, L. A. Dec. 30, 1946, No. 37972. [Class 103 (ii)] A mirror mounting comprises the combination of a back part a, another part b, which is connected by the spring-member e to, and angularly movable relatively to, the back part a, and which carries the mirror c A bolt k, slidable in a socket i on the part p, has a necked portion n which co-operates with the key-hole slot h in the member g to releasably hold the mirror in its operative position, as shown, and to allow the spring means e to move the mirror to an inoperative position when the bolt k is depressed.
Patent GB-1127998-A (GB)
Title: Process for the manufacture of 4,4'-bis-hydroxyalkyl ethers of stilbene
IPC: C07C43/215
Filed: 1967-08-17
Abstract: 1,127,998. Hydroxy ethers of stilbene. WACKER-CHEMIE G.m.b.H. 17 Aug., 1967 [17 Aug., 1966], No. 37979/67. Heading C2C. 4,4<SP>1</SP>-Bis-hydroxy alkyl ethers of stilbene of the general formula in which R is a C 1 -C 12  hydroxyalkyl group and R<SP>1</SP> is hydrogen, one or more halogen atoms and/ or one or more alkyl groups, are obtained by condensing a hydroxyalkyl phenyl ether of the general formula with a monohalogenated acetaldehyde in the presence of glacial acetic acid and sulphuric acid at a temperature from -10‹ to +25‹ C. and rearranging the product to the corresponding stilbene by warming to 150-220‹ C. with elimination of hydrogen halide. The rearrangement is preferably carried out in the presence of a solvent, e.g. ethylene glycol, diethylene glycol monomethyl ether or nitrobenzene. The monohalogenated acetaldehyde is preferably used in the form of an acetal, e.g. the dimethyl or diethyl acetal. Suitable starting materials are, e.g., phenoxyethanol, 1-phenoxy-propanol- 3, 1-phenoxy-propanol-2 and 1-phenoxy butanols. Examples are given of the preparation of (a) the 4,4<SP>1</SP>-bis-hydroxyethyl ether of stilbene; (b) the 4,4<SP>1</SP>-bis-#-hydroxypropyl ether of stilbene, (c) the 4,4<SP>1</SP>-bis-#-#-hydroxypropyl ether of stilbene, and (d) the 4,4<SP>1</SP>-bis-hydroxyethyl ether of 3,3<SP>1</SP>-dimethyl stilbene.