baber/WOPTO huggingface dataset:
Patent GB-234424-A (GB)
Abstract: 234,424. Ferranti, S. Z. de, and Ferranti, Ltd. March 3, 1924. M e r c u r y motor meters have the meter parts mounted on a non-magnetic frame so as to form a unit which is readily removable from the case, the individual elements being capable of remova... from the unit without necessarily detaching this from the case. Fig. 3 is a vertical section showing one construction, and Fig. 6 is a sectional plan, the upper half being taken on the line EE, Fig. 3, and the lower half on the line FF, Fig. 3. The meter parts are carried by a non-magnetic frame a which is removable from the case as a whole and carries the mercury bath and two C-shaped magnets b. The mercury bath is moulded in three portions, of which the portions c, d constitute the top and bottom of the bath, and the segmental portion c is removable to permit resegmental portion e is removable to permit removal of the rotor. A pair of soft-iron studs g are moulded in the upper member c. and a similar pair h are moulded in the lower member d, each stud projecting slightly above and below the wall of the bath. The footstep bearing comprise a jewel set in a block k which is slidable radially in a groove formed in the bottom member d. The bath is sealed and the spindle locked against the upper bearing for transport by means of a collar m which is drawn up by a spring 19 and cranked bar 18 so as to bear against a collar 22 fixed to the spindle. In use, the bar 18 is drawn down bv rotation of a spindle 21 carrying an eccentric pin 20. The two C-shaped permanent magnets b register with the soft-iron pole-pieces g, h, and each is removable without disturbing any other part of the meter. The polarity of the two magnets b is such that unlike poles are formed at the pole-pieces in the upper wall of the bath. Current is led into the bath by way of three studs t, u, v, let into the periphery of the bath, the central stud u being connected to one end of a resistance w, the other end of which is connected to the two outer studs t, v. A slider 2, which may be clamped in any position along the resistance w, enables the distribution of the current between the central and side studs, and therefore the constant of the meter, to be adjusted. A similar arrangement is made at the other side of the bath. The terminal block z is attached to the non-magnetic. frame a by screws, and has projecting bosses 13 registering with holes in the meter casing. The frame a is secured to sloping abutments 15 by screws 14, insulating bushes being interposed.
Patent GB-994744-A (GB)
Title: Cyclopentanophenanthrene compounds and process for their production
IPC: C07J5/00
Filed: 1961-06-28
Abstract: The invention comprises 16a -mono-, di- and trifluoro methyl pregnenes of general formulae <FORM:0994744/C2/1> (wherein X is a mono-, di-, or tri-fluoromethyl group; R is hydrogen or the acyl group of a hydrocarbon carboxylic acid of less than 12 carbon atoms and which may be substituted by functional groups), and processes for their preparation.  The trifluoromethyl compounds may be prepared: (a) from 16a -cyano-D 5-pregnen-3b -ol-20-one acetate by sodium borohydride reduction, etherification of the resulting 20-hydroxyl group with dihydropyran, saponification of the 3-acetate, and benzoylation to give 3-benzoyloxy-20b -tetrahydropyranyloxy - D 5 - pregnene - 16a  - carboxylic acid, which is subjected to acid hydrolysis, acylation of the 20-hydroxyl group, treatment with SF4, saponification of the 20-acylate group, chromic acid oxidation and saponification of the 3-benzoate to yield 16a -trifluoromethyl-D 5-pregnen - 3b  - ol - 20 - one, which may then be esterified at C3, or oxidized under Oppenaur conditions to give 16a -trifluoromethyl progesterone; (b) from 3b -acetoxy-D 5,16-pregnadien-20-one by treatment with trifluoromethyl magnesium iodide followed by acylation at C3 or Oppenauer oxidation of the resulting 16a -trifluoromethyl - D 5 - pregnen - 3b  - ol - 20 - one. The difluoromethyl compounds are prepared from 3 - benzoyloxy - 20b  - acetoxy - D 5 - pregnene-16a -carboxylic acid by treatment with oxalyl or thionyl chloride, reduction of the resulting acid chloride either with lithium aluminium tertiary butoxide or by the Rosenmund method to yield the corresponding 16a -carboxaldehyde, which is reacted with SF4, the 16a -difluoromethyl steroid saponified at C20, oxidized to give the 20-ketone, saponified to 16a -difluoromethyl - D 5 - pregnen - 3b  - ol - 20 - one and the latter is either acylated at C3 or submitted to Oppenauer oxidation to give 16a -difluoromethyl progesterone.  The monofluoromethyl compounds are prepared either as in (b) above but using monofluoromethyl magnesium iodide as the Grignard reagent, or by treatment of D 5-pregnene-3b ,20b -diol-16a -carboxaldehyde 3-benzoate-20-acetate with sodium borohydride, tosylation of the resulting 16a -hydroxymethyl steroid, treatment of the latter with potassium hydrogen fluoride in dimethyl formamide, hydrolysis of the 20-acetate group, oxidation of the 20-ketone and saponification at C3 to yield 16a -monofluoromethyl-D 5-pregnen-3b -ol-20-one, which is then acylated at C3 or oxidized by the Oppenauer method to give 16a -monofluoromethyl-progesterone. The invention is illustrated by detailed examples.  Specifications 994,743 and 994,745 are referred to.
Patent GB-858368-A (GB)
Title: Improvements in or relating to joints for pipes or tubes
Inventor: BENNETT KENNETH JACK
IPC: F16L17/04
Filed: 1958-07-22
Abstract: 858,368. Scribers. VICTAULIC CO. Ltd. Oct. 22, 1959 [July 22, 1958], No. 23495/58. Class 61. [Also in Group XXVIII] A tool for marking the ends of pipes to indicate the extent of insertion thereof into a jointing ring comprises a sheet metal member 15 shaped to engage the end face and outer cylindrical surface of the pipe 10, and a scriber 16 which marks the outer surface of the pipe when the tool is moved around the circumference of the pipe end. Specification 167,265 is referred to.
Patent GB-1047408-A (GB)
Filed: 1965-06-02
Abstract: 1,047,408. Methyl formate. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 2, 1965 [June 4, 1964], No. 23518/65. Heading C2C. A process for the preparation of methyl formate comprises reacting methanol with carbon monoxide at greater than atmospheric pressure in the presence of an aliphatic alcoholate, potassium, rubidium or caesium as catalyst. The alcoholates may be derived from alcohols such as methanol, ethanol, propanol or from a monohydroxy compound boiling above 100‹ C. and below 170‹ C. at atmospheric pressure, such as a monohydroxy alkyl(poly)ether (particularly 2-methoxyethanol) and may be used in an amount from 2 to 10% by weight.
Patent GB-773970-A (GB)
Title: Improvements in or relating to circuit arrangements for current supply to electron tubes
IPC: H01J29/82
Filed: 1955-08-16
Abstract: 773,970. Rectifying. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Aug. 16, 1955 [Aug. 16, 1954], No. 23599/55. Class 38 (2). A circuit arrangement comprising a transistor oscillator, the output pulses of which are rectified is characterized in that one terminal of the low voltage supply 7 is connected to the collector c of the transistor 1 whilst the other terminal of the supply 7 is connected via the primary winding 8 of a transformer 2 to the emitter e of the transistor 1, the pulsatory voltage which appears across the primary winding 8 being applied to a rectifier 4. If desired a voltage in addition to the pulsatory voltage across the winding 8 may be applied to the rectifier 4, such voltage being provided by a further winding 9 on the transformer 2. With the arrangement of the invention the voltage across the winding 8 is a positive pulsatory voltage. A secondary winding 11 is connected between the emitter e and the base b of the transistor 1 or the base b may be connected to a tapping on the winding 9. In another embodiment a resistor is connected in series with the primary winding 8 between the source and the emitter e, this resistor being used to develop the grid bias for the valves supplied by the rectified voltage from the rectifier 4. Specification 769,445 is referred to.
Patent GB-1461955-A (GB)
Title: Electric cable joint structures
IPC: H01B7/29
Filed: 1974-05-28
Abstract: 1461955 Cooling cable joints BICC Ltd 23 May 1975 [28 May 1974] 23630/74 Heading H2E [Also in Division F4] A cable installation which is cooled by cooling fluid flowing in pipes alongside the cables comprises a thermally conductive enclosure 1 surrounding a cable joint, and a pipe 4, interconnected in and forming part of a circulating cooling system, secured in thermal contact with and to the enclosure, such that a flexible plug can be forced by fluid pressure through and in fluid tight engagement with the pipes to purge the system of cooling fluid during emptying, or of air during filling, the system. The pipe 4 may be secured by welding, a copper saddle (16), metal straps (26), or copper webs (36). Several enclosures may be connected in series by flow pipes 3, 5 of the system (Fig. 6); an enclosure may be secured to two pipes in separate flow pipes (Fig. 4). The pipe 4 may be up to 30% less in cross-sectional area than the pipes 3, 5. The enclosures may be earthed to reduce corrosion, or the pipe 4 may be insulated or the cooling fluid made non-conductive.
Patent GB-881987-A (GB)
Title: Coincidence detector
Inventor: HALSALL JAMES RICHARD
IPC: G06F7/02
Filed: 1960-07-06
Abstract: 881,987. Electric selective signalling systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 22, 1961 [July 6, 1960], No. 23643/60. Addition to 811,040. Class 40 (1). An alternative detector for use with the spectrophotometer described in the parent Specification comprises a selector unit (WN1 &c.) on which up to thirty representations of decimal numbers can be set up for comparison with similar representations from pilot and main digitizers (PD, MD). Each selector comprises sixteen two-position switching elements C201 ... C216 settable to represent a four-decimal-digit number in non-ambiguous binary code, and these are connected via a pilot relay e.g. RP1 and a main relay e.g. RM1 to corresponding switching elements in the pilot digitizer PD and main digitizer MD, respectively. Corresponding pairs of fixed contacts " 1," " 0 " in the selectors and digitizers are connected to separate secondary windings of a transformer T so that the pilot relay RP1 remains energized until all the contacts of the pilot digitizer agree with the setting of selector WN1, for instance. Deenergization of relay RP1 causes slowing down of the servomotor, as described in the parent Specification, and when the contacts of the main digitizer come into agreement with the setting of the selector WN1, the servomotor is stopped. By-pass rectifiers MR2 ensure that relays RP1, RM1, &c., do not release during reversals of the alternating current. Other rectifiers MR1, MR3 prevent undesirable shunting and " sneak " circuits.
Patent GB-206125-A (GB)
Title: Improvements in or relating to heat-exchange devices
IPC: F28F9/10
Filed: 1923-09-24
Abstract: 206,125. Wurstemberger, F. von. Oct. 25, 1922, [Convention date]. Plates, securing tubes to.-In heat exchange devices using salt water, galvanic action at the tube-plate joint is reduced by causing the tubes to contact with the plate on one side of the tube aperture. This can be effected by making the tube bore 1 eccentric to the gland-screw bore 2, Fig. 1, so that the tube contacts with the plate at 7, or by effecting an unequal distribution of the packing, Fig. 2, so that the tube is pressed downwards to contact at 14. Rings and cylindrical washers 20 with eccentric holes may be used either of rubber or fibre; or concentric-holed cylindrical washers 24 with one end cut on an incline, Fig. 6, may be used.
Patent GB-636768-A (GB)
Title: Improvements relating to drilling appliances
IPC: E21B10/44
Filed: 1947-08-28
Abstract: 636,768. Rock &c. drilling bits. VICTOR PRODUCTS (WALLSEND), Ltd., and MANN, R. W. Aug. 28, 1947, No. 23878. [Class 83 (iii)] A drill bit for drilling rock comprises a base, a shank 12 to engage the drill rod, forwardlyextending wings 14 with parallel cutting faces, parallel flat faces 22 which are disposed between the roots of the wings and diagonal to the cutting faces, for engaging a deep slot 21 in the drill rod, and a longitudinal groove 23 formed in the shank and centrally in one of the flat faces 22 to convey water through a hole in the rod to the working face. Specifications 538,212, 592,087 and 599,451 are referred to.
Patent GB-600394-A (GB)
Title: Improvements in or relating to air cleaners
IPC: F02M35/026
Filed: 1945-12-05
Abstract: 600,394. Air cleaners. HOUDAILLEHERSHEY CORPORATION. Dec. 5, 1945, No. 32921. Convention date, Feb. 1. [Class 8 (ii)] In an air cleaner comprising a casing 1 and a filter 19 in the path of the air travelling from the casing inlet 6 to the outlet 12, and having a liquid sump below the filter, the casing is so shaped as to provide an annular open trough 33 beneath the air inlet passage 39, and a central well 37 of greater depth than the trough and having an anti-splash flange 38 to prevent accidental transfer of liquid from the well 37 to the trough 33. The filter material 19 of vegetable fibre, cattle-tail, hair or wavy wire is supported in a removable shell 9 located by projections 10. The filter is cleaned by washing in kerosene.
Patent GB-1446665-A (GB)
Title: Method of and composition for lubricating and lubricated substrates
IPC: C09D127/06
Filed: 1974-05-30
Abstract: 1446665 Coated products BALL BROS RESEARCH CORP 30 May 1974 [25 June 1973] 24004/74 Heading B2E [Also in Divisions C3 and C5] A substrate (specified substrates being photographic film, for example projection film such as moving picture film, slide film and microfilm, and magnetic recording elements, for example magnetic tape for sound and video reproduction and computer recording discs) is lubricated by a method which includes the steps of forming on a surface of the substrate a composition comprising (a) trifluorochloroethylene/vinyl chloride copolymer, (b) tetra fluoroethylene telomer, (c) solvent for the copolymer and telomer and, optionally, (d) antistatic agent, for example amine antistatic agent, removing (or allowing to evaporate) the solvent from the composition on the surface of the substrate thereby to deposit a lubricating coating containing the copolymer and the telomer on the surface of the substrate and, optionally, buffing the deposited lubricating casting. The composition may be formed on the surface of the substrate by applying thereto, for example by a technique involving dipping, spraying, brushing, flowing or doctoring, either a mixture, for example a solution containing the copolymer, the telomer and the solvent (in which case any undissolved copolymer and telomer may be separated from the mixture, for example by subjecting the mixture to centrifuging, decanting or filtering, before application thereof to the surface of the substrate) or a mixture containing the copolymer and solvent therefor and a mixture containing the telomer and solvent therefor. The solvent preferably is selected from halogenated aliphatic hydrocarbons containing not more than four carbon atoms, for example from methylene chloride, chloroform, carbon tetrachloride, dichloroethane, 1, 1, 1-trichloroethane trichlorotrifluoroethane, dichloroethylene, trichloroethylene and tetrachloroethylene. As exemplified, acetate base colour movie film, polyester base colour movie film and magnetic tape comprising polymeric support film coated with a dispersion of magnetic oxide particles in a binder are provided each with lubricating coating containing copolymer and telomer by a procedure wherein there is applied thereto a mixture prepared either from copolymer, a suspension of telomer in trichlorotrifluoroethane, solvent trichloroethane or trichlorotrifluoroethane and amine antistatic agent or from copolymer, a suspension of telomer and solvent trichlorotrifluoroethane.
Patent GB-882375-A (GB)
Title: An arrangement of electric semiconductor rectifiers
IPC: H02M7/06
Filed: 1958-07-25
Abstract: 882,375. Rectifying. LICENTIA PATENTVERWALTUNGS-G.m.b.H. July 25, 1958 [Aug. 21, 1957], No. 24005/58. Class 38 (2). A rectifying arrangement includes in each phase germanium or silicon rectifying elements 4, 5, 6, 7 in series with a saturable reactor 2, and oppositely-directed rectifying elements 8<SP>1</SP>, 8<SP>11</SP>, 8<SP>111</SP> in series with a capacitor 9 are connected across the elements 4 ... 7 so that reverse current flows (at the end of the conducting period) to charge the capacitor 9, thereby avoiding the immediate application of high blocking voltage to the elements 4 . . . 7 before the high density of charge carriers therein has disappeared. A variable resistor 10 is provided in parallel with the capacitor 9 through which the capacitor discharges during the subsequent period. A pre-energizing winding 3 is provided on the saturable reactor to raise the level of the current step. Voltage equalizing resistors 41, 51, 61, 71, 81 are provided across the rectifying elements. The elements 81, 8<SP>11</SP>, 8111 may be gas or vapour discharge devices. The arrangement may be used in a six-phase bridge connected rectifier arrangement, and the primary winding of the supply transformer may be tapped. The variable resistor 10 may be used to affect the saturable reactor to give fine voltage control.
Patent GB-611914-A (GB)
Title: Method of purifying sols
IPC: B01J13/00
Filed: 1945-09-18
Abstract: Electrolyte free colloidal sols having from 1 to 3 per cent colloidally dispersed acidic oxides are produced by removing the electrolyte therefrom by passing the sol in series through a cation-exchange material and an anion-exchange material.  The sols may be produced by neutralizing an alkali metal salt of an acidic oxide, such as silica, tungstic oxide, molybdenum oxide or vanadium oxide, with an acid, such as hydrochloric or sulphuric acid, or other acidic substance.  The cation-exchange material is preferably one which has been regenerated by an acid and the anion-exchange material is preferably a resinous type which has been regenerated by an alkali.  Specification 20400/47, as open to inspection under Sect. 91, is referred to.  The Specification as open to inspection under Sect. 91 describes also the preparation of electrolyte free sols of rubber latex, soaps, polyacrylic acid salts, albuminoids, polyvinyl alcohol, rubber, polystyrene, gums, resins, and degraded starches. This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 describes the preparation of electrolyte free colloidal sols of polyacrylic acid salts, polyvinyl alcohol and polystyrene by removal of electrolytes by passing the sols in series through cation and anion exchange materials, the former being preferably acid regenerated and the latter being preferably of a resinous type and alkali regenerated.  This subject-matter does not appear in the Specification as accepted.  Specification 20400/47, as open to inspection under Sect. 91, is referred to.ALSO:The Specification as open to inspection under Sect. 91 describes the preparation of electrolyte free colloidal sols of rubber, rubber latex and degraded starches by removal of electrolytes by passing the sols in series through cation and anion exchange materials, the former being preferably acid regenerated and the latter being preferably of a resinous type and alkali regenerated.  This subject matter does not appear in the Specification as accepted.  Specification 20400/47, as open to inspection under Sect. 91, is referred to.
Patent GB-141661-A (GB)
Title: Apparatus for the manufacture of oxygen compounds of sulphur and especially sulphur dioxide mixed with sulphur trioxide
IPC: C01B17/54
Filed: 1919-10-01
Abstract: 141,661. Clayton, T. A. April 11, 1919, [Convention date]. Sulphur burners.-In apparatus in which secondary air is delivered into the space between baffles D arranged above the hearth or pan B for the sulphur, a box-like baffle or defector G is provided at the secondary air inlet E<2> to prevent a back flow of gases into the combustion chamber.
Patent GB-371266-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B3/64
Filed: 1931-08-28
Abstract: 371,266. Conveying charges. AKT.- GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Aug. 28, 1931, No. 24219. Convention date, Sept. 16, 1930. [Class 51 (ii).] A cylindrical electric furnace which is particularly suitable for dealing with pulverulent material, has a horizontal travelling grate composed of interengaging members forming an endless band d passing over rollers e. The charge is fed by worms f at both ends of the furnace on to the two upper sides of the band and discharge occurs at the opposite ends. Two such grates may be provided arranged one above the other. The charging hoppers g for each feeding worm, discharging receivers h arranged at both ends of the furnace, and receivers i for superfluous charge are provided in duplicate. The furnace is gas-tight and provided with a gas outlet k. Surplus material may be fed from one grate to the next.
Patent GB-1301178-A (GB)
Title: A process for the preparation of vinyl polymers and copolymers insoluble in their monomers or co-monomers
IPC: C08F259/04
Filed: 1970-05-19
Abstract: 1301178 Polymerizing vinyl chloride PRODUITS CHIMIQUES PECHINEYSAINT-GOBAIN 19 May 1970 [19 May 1969] 24225/70 Heading C3P Granular polymers of vinyl chloride, insoluble in the monomers, are prepared by forming a latex of a previously prepared polymer, the polymer particles of which contain an organosoluble catalyst, forming a dispersion of the latex in vinyl chloride or a comonomer mixture containing vinyl chloride and subjecting the dispersion to polymerization. The copolymerization of vinyl chloride with vinyl acetate is described in one example. The latex is formed by emulsion or suspension polymerization. The following polymerization may be effected in the presence of an emulsifier or protective colloid, a water-soluble or organo-soluble catalyst activator and further catalyst may be added preferably before 25% conversion is reached. Lauroyl peroxide is used in the examples to form the latex, isopropyl peroxydicarbonate being added in the main polymerization.
Patent GB-1173866-A (GB)
Title: Improvements in Pouring Spouts Applicable to Thin-Walled Containers
Inventor: WEBER ALWIN
IPC: B65D35/02
Filed: 1968-05-22
Abstract: 1,173,866. Tapping containers. A. WEBBER. 22 May, 1968 [14 Aug., 1967], No. 24326/68. Heading B8T. A pouring spout adapted for thin-walled containers, made, e.g. of paper, cardboard, synthetic plastics, comprises a tubular body 1 having an intermediate flange 7, the body below the flange having a V-threading 9 which has a smaller flank angle than any standard V-thread, the threading having an introduction portion 12 which starts from the cutting edge 13 of one of a number of ribs 14 which form a piercer. A resilient packing ring 11 is positioned adjacent the flange 7, the threading 9 being of reduced diameter within the packing ring. When the spout is screwed tightly into the wall of a container the portion of the wall around the hole formed by the piercer is securely held between the packing ring 11 and a flank 17 of the threading 9, Fig. 5 (not shown). The upper portion of body 1 may be provided with hand-grips 2 and closed by a plug. The through passage 4 may be divided into a number of passages 18 formed by extensions of the ribs 14.
Patent GB-244083-A (GB)
Abstract: 244,083. Blanchard, J. Dec. 5, 1924, [Convention date]. Strap fastenings.-One end of a strap is attached to one end 4 of a plate 1, and the other end is secured to a buckle 5 provided with a sliding-loop and pivoted to a lever 3 which in turn is pivoted to the plate 1 intermediate its ends, so that on pulling down the lever 3 into the dotted position shown the strap is stretched. Means is provided to keep the lever in this position. A roller 6, secured at the upper end of the plate 1, permits the strap to slide freely when being stretched. If desired, one end of the plate 1 may be attached to the object to be fastened or to a support, and a short strap also attached to the object may be fastened as above indicated.