baber/WOPTO huggingface dataset:
Patent GB-510896-A (GB)
Title: An improved process for the solvent extraction of hydrocarbon oils
IPC: C10G21/16
Filed: 1938-02-11
Abstract: 510,896. Selective solvent extraction of hydrocarbon oils. STANDARD OIL DEVELOPMENT CO. Feb. 11, 1938, No. 4357. Convention date, Sept. 8, 1937. [Class 91] Aromatic hydrocarbons are obtained from hydrocarbon oils especially naphthas by extraction with a selective solvent consisting of a monophenyl ether of a glycol. Solvents specified are, monophenyl-or monotolylethers of di-, tri-, tetra-, or penta-ethylene glycol. The ethers may be used in admixture with glycols, polyglycols, water, caustic soda potash or ammonia. Example, naphtha is extracted at 50 to 100‹F. in a batch or countercurrent treatment with a mixture of #-phenoxy ethyl alcohol and water or triethylene glycol. After separating the layers, the raffinate is washed with water, and the extract after removal of solvent by distillation is also washed with water. The extract may be used as a motor fuel or as a component thereof. Cracked or hydrogenated oils may be used as the raw material. The oil products may be hydrogenated or hydro-refined.
Patent GB-637178-A (GB)
Title: An improved manufacture of catalytic materials
IPC: B01J23/28
Filed: 1947-02-14
Abstract: Zinc spinel is prepared by mixing aqueous solutions of a zinc salt, e.g. the sulphate, nitrate or chloride, and alkali-metal aluminate at 150-200 DEG  F., the precipitate so obtained being separated, washed, dried and calcined.  The zinc spinel so prepared serves as an active, low density carrier for a hydroforming or aromatizing catalyst comprising a heavy metal oxide, e.g. molybdenum or chromium oxide. In an example, aqueous solutions of zinc sulphate and sodium aluminate are added to distilled water at 180 DEG  F., and the slurry of zinc spinel so formed is neutralized by sulphuric acid and filtered hot.  The precipitate is then washed, re-slurried, filtered and washed again.  Finally it is impregnated with molybdenum oxide by re-slurrying with a solution of ammonium molybdate, mixing in a ball-mill, drying, pilling and calcining at 1200 DEG  F. Specifications 605,868 and 613,463, [Group IV (b)], are referred to.
Patent GB-524911-A (GB)
Title: Improvements in mechanical transmission systems for aircraft
IPC: B64D35/04
Filed: 1939-02-10
Abstract: 524,911. Driving aircraft propellers. ALMONACID, V. A. Feb. 10, 1939, No. 4471. Addition to 485,053. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 11, 1939.] [Class 4] Mechanism for transmitting motion from driving to driven shafts as described in the parent Specification is applied to cases in which the driving shafts are not all in one plane. Each shaft may be provided with more than two cranks. Fig. 3 shows four propeller shafts driven from a motor shaft a in a different plane through intermediate cranked shafts a1 ... a4 connected by tension elements. Guiding crank shafts i are provided for the connecting wires.
Patent GB-1453054-A (GB)
Title: Apparatus for detecting and controlling roll hardness of a  continuous web of paper material fuel injection apparatus for internal combustion engines
IPC: B65H18/26
Filed: 1973-01-30
Abstract: 1453054 Automatic control of paper-making CONSOLIDATED-BATHURST Ltd 29 Jan 1974 [30 Jan 1973] 4573/73 Heading G3R The reel hardness of a continuous paper web material is controlled by transversely scanning the web to derive a series of measured values of the hardness, integrating or summing to produce an average value for each of a plurality of transverse segments, comparing an electrical signal representing this value with a reference value, and using the result to actuate devices which cause the hardness to vary. As shown, a paper-making machine includes a stack of calendar rolls 16 between which a web passes to form a wound reel 24. A known Piezoelectric hardness testing device 66 is scanned across the reel, transmitting measured values corresponding to successive positions in a series of segments across the reel width. A computer 50 receives the measured values, integrates, averages and filters corresponding electrical signals for each segment, and compares the resulting signals with stored values representing a desired profile of hardness across the reel. The error signal produced may be processed to form a control signal of error squared plus derivative, PI, PD, PID or other type in accordance with stored algorithms. This control signal actuates rotary valves 32 to control pneumatically through a pressure regulator 28, the settings of valves in distribution nozzles 18 located across the width of calendar rolls 16 and adapted to direct air at a controlled temperature on to the web so as to cause the reel hardness to vary in such a manner as to reduce the error signals. The system may operate in a continuous or incremental mode, using analog or digital techniques. Other properties besides hardness which may be measured and controlled in a similar manner are web thickness, compressibility, smoothness, opacity and porosity.
Patent GB-1254725-A (GB)
Title: Roller conveyors
IPC: B65G13/00
Filed: 1969-01-28
Abstract: 1,254,725. Roller conveyers. DEMAG-ZUG G.m.b.H. 28 Jan., 1969 [2 April, 1968], No. 4652/69. Addition to 1,187,712. Heading B8A. A roller conveyer frame comprises side members 6, 7, each provided with a shoe 15 for receiving an end of a spacer element 19. The shoe includes clamping surfaces 16 which form a dovetail into which the end of the spacer element 19 engages. Stops 20 prevent the element from falling out. The provision of a dovetail portion above and below a central opening 17 in the shoe permits a side member 6, 7 to be inverted at delivery or discharge points. Rollers 1 are mounted in brackets (not shown) as in parent Specification.
Patent GB-789488-A (GB)
Title: Improvements in or relating to electrolytic condensers
IPC: H01G9/04
Filed: 1956-02-15
Abstract: 789,488. Electrolytic capacitors. BRENNAN; J. B. Feb. 15, 1956, No. 4736/56. Addition to 697,876. Class 37. An electrode assembly comprises a hollow strip electrode containing a second electrode spaced from it by permeable material. The outer electrode is fabricated by uniting two metallic strips along their edges to enclose the second electrode. The electrodes are preferably porous. A flexible covering of aluminium or a synthetic plastic such as polyethylene may be applied; strips of polyethylene may be laid on either side of the assembly and welded together along their edges.
Patent GB-729520-A (GB)
Title: Improvements relating to adaptors for the connection of instruments to gas pipe lines
IPC: G01F15/18
Filed: 1953-02-20
Abstract: 729,520. Gas meters. KROMSCHRODER AKT.-GES., G. Feb. 20, 1953 [Feb. 20, 1952], No. 4796/53. Class 54. [Also in Group XXVIII] A gas meter 36, or a pressure regulator, is attached to an adapter 20, interposed in a pipe-line, by a bolt and nut 52, and a metal strip 54 is provided to prevent unauthorized removal of the meter from the adapter, one end of the strip being looped over and secured by the nut, and the other end of the strip being secured by a screw 56 the head of which is sealed by a lead cap. In modifications (a), Fig. 10, a plug 58 having a conical aperture and a head engaging the casing 62 of the meter is drawn into the adapter 20 by a tapered screw 64 so that the casing is gripped between the head of the plug and the adapter with the interposition of a packing 60, the screw 64 after tightening being sealed by a lead plate 66; (b) Fig. 11 (not shown), the meter is attached to the adapter 20 by flanged bushings engaging the inside of the casing of the meter and screwed into conduits formed in the adapter; and (c), Fig. 12, a lever 72 is pivoted to the free end of a bolt 52 and depressed to draw the bolt into the adapter to secure the meter 36, the lever being locked in position by a screw 74 sealed by a lead cap.
Patent GB-452018-A (GB)
Title: Improvements in or relating to dyeing and printing
Filed: 1935-02-14
Abstract: Vat dyes, dyeing with; printing; dye preparations.--Water-soluble salts of mercapto compounds, with the exception of sulphocyanic acid salts, are incorporated as stabilizers in dyeing or printing preparations comprising sulphuric acid esters of leuco vat dyestuffs of the benzanthrone series or are added to the dyebath.  Such salts are, for example, the alkali metal and piperidine salts of thioglycollic acid, thiophenols, mercaptobenzothiazole, xanthogenic acid and dithiocarbamic acids.  In an example, a printing preparation is obtained by stirring a paste of the leuco sulphuric acid ester of the olive green dyestuff described in example 7 of Specification 407,702, into a paste containing thiodiethylene glycol, water, neutral starch tragacanth thickening, diethyl tartrate, sodium chlorate, ammonium vanadate and, as stabilizer, a water-soluble salt of mercaptobenzothiazole, thioglycollic acid, xanthogenic acid, dithiocarbamic acid, N-dimethyldithiocarbamic acid or pentamethylenedithiocarbamic acid (as piperidine salt).  This preparation, even after standing for some days, gives level, strong shades, when printed on cotton in the usual manner followed by steaming, rinsing, soaping at the boil and again rinsing.
Patent GB-562305-A (GB)
Title: Improvements in frequency indicating and measuring means suitable for measuring distances and directions of invisible objects
IPC: G01R23/00
Filed: 1942-04-14
Abstract: 562,305. Echo-sounding and distancemeasuring. ROST, H. F., and CLAESSON, P. H. E. April 14, 1942, No. 4892. Addition to 542,634, [Group XL] [Class 118 (ii)] [Also in Group XXXVI] An apparatus for simultaneously indicating all frequencies originating from supersonic pressure waves, and suitable for the determination of the direction and distance of invisible objects, as in the parent Specification, employs a wave analyser 112 as described in "Wireless Engineer," 1937, page 75, having a local oscillator variable by a variable condenser 113 which is driven by a motor 19. A cam 125 on the motor shaft operates a switch 124 controlling a relaxati in oscillation generator 120, the output of which is supplied through rotatable potentiometers 76, 77, synchronised with a receiver 132, as in the parent Specification, to deviation electrodes of a cathode ray tube 102. The ray is normally biassed by electrodes 106 against a baffle 105 but is deflected on to the screen when a certain frequency is received, and indicates by its distance and direction the magnitude of the frequency or distance and direction of the object located. In the example shown, the analyser 112 is fed with beat frequencies constituing the output of a magnetostrictive receiver 132 which receives directly the signals transmitted by magnetostrictive transmitter 131 and also the reflected waves of the latter. The transmitter and receiver are both rotatable in water, the latter with a greater speed, and comprise oil-filled reflectors 133, 134 separated from the water by diaphragms. The transmitter is supplied from a local oscillator 153 which is frequencymodulated by condenser 155 or potentiometer 156 both mounted on the transmitter-shaft. Specification 546,202 is referred to.
Patent GB-690702-A (GB)
Title: Improvements in colour filters and the method of producing the same
Inventor: COOPER HUBERT DENNIS
IPC: G03C1/83
Filed: 1950-02-27
Abstract: An orange-red colour filter is produced by immersing a hardened gelatine layer in an aqueous solution of a mixture of Auramine O, Xylene Red B and Rhodamine B.  400 ccs. of the solution contains from 3.5 to 4.5 grams of Auramine O, preferably 3.9 grams, from 1.2 to 1.8 grams of Xylene Red B, preferably 1.5 grams, from 1.0 to 1.3 grams of Rhodamine B, preferably 1.05 grams.  The temperature of the solution during the immersion lies between 56 DEG  and 68 DEG  F., being preferably 62 DEG  F., and the period of immersion is between thirty and sixty seconds, preferably forty-five seconds.  After immersion the gelatine layer is washed for a period of the order of forty seconds in water at between 55 DEG  and 70 DEG  F., preferably at 62 DEG  F.  The filter is then dried. Specifications 656,909, [Group XX], 690,703, 690,704, 690,705 and 690,714, [Group XX], are referred to.
Patent GB-484525-A (GB)
Title: Improvements in the manufacture and production of unsaturated hydrocarbons
IPC: C07C5/35
Filed: 1937-02-20
Abstract: Aromatic hydrocarbons with unsaturated aliphatic side chains are produced by contacting aromatic hydrocarbons having aliphatic side chains and boiling below 300 DEG  C. with hydrogen-containing gases or vapours immediately after exposure to an electric arc.  The initial hydrocarbons may be in the liquid or vapour phase.  In examples, liquid ethylbenzene or styrene is added to the hydrogen after it leaves the arc and the vapours cooled to give a liquid containing phenylacetylene.  The production of naphthylacetylene from ethylnaphthalene also is referred to.
Patent GB-414788-A (GB)
Title: Improvements in pipe couplings or connections
IPC: F16L37/248
Filed: 1933-02-20
Abstract: 414,788. Pipe couplings. B.E.N. PATENTS, Ltd., and ELWESS, E., Gorst Road, Chase Estate, Willesden, London. Feb. 20, 1933, No. 5187. [Class 99 (i).] In a spigot-and-socket joint in which a spring- closed valve v is opened by the spigot engaging an extension vl of the valve, the spigot seats against a single washer w which is fixed at its edge in the socket band forms on its other side the seat of the valve. The spigot may be held in the socket by a bayonet joint or by a coarse screw-thread. Notches p<3>, Fig. 3, in the thread of the spigot are engaged by a projection on the side of the socket thread (not shown) to lock the screwthreaded joint. External rubber rings w<1> are provided on the spigot to protect the thread and serve as a handle.
Patent GB-772786-A (GB)
Title: Improvements in or relating to electric plug-and-socket couplings
IPC: H01R13/11
Filed: 1952-05-27
Abstract: 772,786. Two-part couplings. WARD & GOLDSTONE, Ltd., and COUYOUMDJIAN, A. O. May 27, 1953 [May 27, 1952], (No. 5216/55. Divided out of 772,785. Class 38 )1. In a three-pin socket having earth and neutral contacts constructed according to Specification 772,785 and combined with terminals as des. cribed in Specification 772,782, the # live " contact 11 is formed from an L-shaped blank, one limb of which is curled to form a socket portion 10 and the other limb 14 is bent at right angles to form a fixed switch contact 16. The contact is slid laterally into a recess 13 in the socket body and is retained against axial and lateral withdrawal by tongues 21, 18 struck laterally and downwardly respectively from the limbs of the contact and engaging respectively a recess 22 and a shoulder 19 in the socket body. Also a portion 17 of the body overhangs the contact 16. The switch may be constructed according to Specification 772,781, [Group XXXVII]. Specification 638,846 also. is referred to.
Patent GB-366300-A (GB)
Title: Improvements in clutches
IPC: F02N99/00
Filed: 1931-02-19
Abstract: 366,300. Turning-gear. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Feb. 19, 1931, No. 5219. Convention date, Sept. 23, 1930. [Class 7 (v).] In a friction plate clutch for use with electric starters, in which the engaging pressure increases with the torque transmitted, the pressure member on being displaced beyond a predetermined amount in the direction for driving engagement relieves the pressure on the plates' thus protecting the starting motor from damage on backfiring. The clutch comprises friction discs 11, 13 splined alternately to a housing 15 on the armature shaft 1 of the motor and to a nut 6 threaded on a sleeve 3 integral with the starter pinion 4 and free on the shaft 1. The pinion 4 is put into engagement with the engine flywheel by axial movement of the armature shaft. A light spring 8 supplies a small initial clutch engaging pressure and during drive the engaging pressure is dependent on the torque. The plates are resiliently pressed together through a presser plate 18 by a resilient disc 16, or leaf springs, resting against a shoulder 17 on the shaft 1, or by a rigid disc comprising four separate radial projections rockable about the shoulder 17 and engaging at their outer ends splines in the housing and pressed up either by leaf springs or by a tapered adjustable helical spring. For disengaging the clutch on sudden overload such as that due to a backfire, projections 19 on the end of the nut 6, on excessive tightening movement of the nut, abut against the presser disc 16 and take its free ends out of engagement with the plates, allowing them to separate. The nut 6 may be replaced by any other torque-responsive member. The Specification as open to inspection under Sect. 91 (3) (a)' states also that the pitch of the thread on the sleeve 3 increases in the direction of rotation of the armature. This statement does not appear in the Specification as accepted.
Patent GB-434333-A (GB)
Title: Improvements connected with toilet roll holders
IPC: A47K10/40
Filed: 1935-02-19
Abstract: 434,333. Toilet - roll holders. BARKER BROS. (BRASSFOUNDERS), Ltd., and BARKER, F., Tower Street, Birmingham. Feb. 19, 1935, No. 5267. [Class 18] A toilet - roll holder is made in two parts 8, 9, pressed apart by a spring 14, mounted on reduced portions 10, 12, the part 8 carrying a rod 11 on which the part 9 slides freely. The ends are mounted in recessed caps 4, 5, furnished with spigots 6, 7.
Patent GB-807055-A (GB)
Title: Improvements in or relating to a reversible pump
IPC: F04C2/107
Filed: 1957-02-15
Abstract: 807,055. Rotary pumps. VUCSAN, M. Feb. 15, 1957 [Feb. 25, 1956], No. 5269/57. Class 110 (2). A reversible rotary pump comprises a screwthreaded member 9 which is non-rotatably mounted in a correspondingly-shaped stator 1 by two bands such as 13 (see also Fig. 2, not shown), and is journalled on a shaft 6 having an eccentric portion 6a for imparting the requisite movement to the said member 9. The pump is provided with a rubber or nylon band 17 around the screw-threads of the member 9. Fluid in the spaces 18, 19 is re-circulated to the inlet conduits 15 or 16 through check-valves 22, 22a, according to the direction of rotation of the pump.
Patent GB-1140833-A (GB)
Title: Lincomycin derivatives
IPC: C12P19/64
Filed: 1966-02-07
Abstract: 1,140,833. Halo-lincomycins derivatives. UPJOHN CO. 7 Feb., 1966 [20 Oct., 1965], No. 5298/66. Heading C2C. The invention comprises (a) a process for preparing a compound of formula wherein Halo is chlorine or bromine, R is a C 1-20  alkyl, C 3-8  cycloalkyl, C 4-8  cycloalkylalkyl or C 7-12  aralkyl group and Ac is hydrogen or the acyl radical of an acid of one of the formulµ wherein R 1  and R 2  are C 1-20  alkylidene, C 3-8  cycloalkylidene, C 4-8  cycloalkyl-alkylidene or C 7-12  aralkylidene groups, R 3  is hydrogen or a group HR 2  and Z is a protective hydrocarbonyloxy-or substituted hydrocarbonyloxy-group removable by hydrogenolysis or a trityl, diphenyl (p-methoxyphenyl) methyl, bis-(p-methoxyphenyl) phenyl-methyl, benzyl or p-nitrobenzyl group, by reaction of a corresponding hydroxy compound with a Rydon reagent of one of the formulµ obtained by the addition of a halogen to triphenyl phosphine or triphenyl phosphite or of an alkyl halide to triphenyl phosphite, the reaction being optionally preceded or followed by interconversion of the group AcNH; and (b) the products obtained when Halo is bromine. The products may be obtained as acid addition salts. The close analogues of lincomycin have antibiotic activity, and various other of the products have buffering or antacid properties, react with isocyanates to form urethanes or modify polyurethane resins, or have surface active properties. The thiocyanic acid addition salt when condensed with formaldehyde forms a pickling inhibitor, the fluosilicic acid addition salt has moth-proofing properties and the hexafluoroarsenic acid and hexafluorophosphoric acid addition salts have parasitic activity.
Patent GB-194682-A (GB)
Title: Removable fore carriage for motorcycle
IPC: B62K13/04
Filed: 1923-02-23
Abstract: 194,682. Fehr, C. March 7, 1922, [Convention date]. Motor-cycles; compound road vehicles.-A removable forecarriage, adapted to convert a motorbicycle into a three-wheeled vehicle is connected to the bicycle by means of an intermediate cradle or framework. The front wheel of the bicycle, Figs. 1 and 2, is removed and the frame members 2 of the forecarriage are fixed or pivoted at the ends of a transverse tubular member 1 which forms part of a cradle connected rigidly to the bicycle framework at several points. A bar 3 welded or otherwise secured to the member 1 at right-angles thereto is clamped to the front down tube 4 of the bicycle. Two members 6 converging forwardly and upwardly from the ends of the member 1 are connected to an eyebolt 8, the shank of which extends into the steering tube 7 or may be clamped to the outside. Two members converging rearwardly are secured to a cross member 10 having a part which enters the saddle pillar tube 12. The forecarriage may be fixed or pivoted to the transverse tube 1, and when pivoted is fitted with springs 18, the ends of which are connected to the cross member 10 by inclined members 13 spaced at their lower ends bv a transverse member 20. In a modification, the plate, springs 13 are replaced by bell-crank levers and helical springs.
Patent GB-549576-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1941-04-25
Abstract: 549,576. Spray carburetters. BENDIX AVIATION CORPORATION. April 25, 1941, No. 5412. Convention date, July 20, 1940. [Class 7 (iii)] In a carburetter having an idling passage 95 and jet 97 supplied with a small quantity of air through orifices 95a, a further air bleed is provided which is controlled by the suction in the induction pipe, so as to check backflow of idling fuel in the idling passages when the throttle is fully opened, and thus prevent a lag in the delivery of idling fuel when the throttle is closed again. The additional air bleed is provided by orifices 101 in passages 98 supplied through ports 107 formed in a cylinder 100 and controlled -by a piston valve 106, which is moved to the closing position by a spring 108 and opened by suction posterior to the throttle 18 conveyed through passages 112 ... 115, 115a to the left-hand side of the valve. The carburetter shown has two horizontal induction passages each formed with a pair of Venturis 20, 22 supplied from an air intake 14, the fuel being supplied from a reservoir 11a through orifices 24 to the two nozzles 21. Fuel is supplied to the reservoir 11a through a valve 55 and passage 11c, the valve 55 being controlled by a diaphragm 31 on which the fuel rests, and levers 62, 69 connected by a link 66. Annular accelerating wells 87 surround the nozzles 21 and communicate therewith by orifices 89, idling fuel being drawn from these wells through passages 91, tubes 92, and passages 94, 95. An economizer valve 116 is provided for supplying supplementary fuel to the main nozzles, and is actuated by a diaphragm 134 subjected to the suction at 112 through passages 114, 147. An accelerating-pump 151 is connected by the piston rod 170 and a spring toggle lever to the throttle control, the piston rod being connected to a diaphragm 164 which prevents escape of fuel, and also maintains a constant amount of fuel between itself and the reciprocating piston 151, thereby avoiding disturbance of the fuel level. The fuel is discharged from the accelerating-pump through passages 189 ... 194, and an orifice 195 arranged in alignment with a discharge opening 197 through which the jet strikes the throttle 18 when slightly open. The orifices 195, 197 are separated by an air break 196 which is vented through passages 198, 199, 200.