baber/WOPTO huggingface dataset:
Patent GB-262216-A (GB)
Title: Improvements in electrically connecting electrical devices
IPC: H01C1/014
Filed: 1925-10-05
Abstract: 262,216. Farish, T. G. Oct. 5, 1925. Two - part couplings. - A coupling for connecting a pair of electrical devices such as a resistance rand condenser z in series or parallel comprises a pair of headed pins or screws s in axial alignment on the ends of the resistance r adapted to engage a notch f in one or both of the plates c connected to the condenser. As shown the two devices are in series whereas if both screws s engage both notches f the devices are in parallel. In one modification the notches are formed as bayonet slots, and in another a washer is threaded on each pin a spring being located between the washer and the head.
Patent GB-408301-A (GB)
Title: Improvements in or relating to electric contacts
IPC: H01H1/38
Filed: 1932-09-07
Abstract: 408,301. Switch contacts. DENNIS. G. P., 66, South John Street, Liverpool, Sept. 7, 1932, No. 24897. [Class 38 (v).] A contact for a switch &c. comprises a pair of opposed members 3, Fig. 1B, secured together and to a terminal C at one end, and having divergent horns 4 at the other end, rigidly anchored to produce resilient pressure on the contact P inserted between the members. Both members may be formed from a single strip folded at 2, or separate strip, one of which may be formed as a rigid block, may be clamped together. The horns 4 may be anchored by a link B or by the walls of a recess f<6>, Fig. 8, in which the contact is housed. Plug contacts having a parallel motion co-operate with such sockets, or a knife switch H, Fig. 13, may co-operate with flat contact surfaces S<3> secured together at 2 and having divergent horns 4 confined by anchoring-pieces B<4> having a slot bl to receive the switch-blade H.
Patent GB-730088-A (GB)
Title: Substituted indolines and a process for the reduction of naphthostyrils
Filed: 1951-10-24
Abstract: The invention comprises benz (cd) indoline of the formula <FORM:0730088/IV (b)/1> and derivatives thereof in which the nucleus A is substituted or has a further cyclic structure fused on it.  The above compounds are prepared by a process characterized in that naphthostyril having the formula <FORM:0730088/IV (b)/2> or a derivative thereof in which the nucleus B is substituted or has a further cyclic structure fused on it is treated with a reducing agent selected from the group consisting of metal hydrides.  Solvents which may be employed are ethylmorpholine, tetrahydrofurane, ether and dioxane.  Lithium aluminium hydride is specified as reducing agent and room or slightly elevated temperature may be used.  The benz (cd) indolines oxidize rapidly in air, especially in an acid medium. Stable acetyl derivatives may be obtained by treatment of the benz (cd) indolines with acetic anhydride in pyridine.  In examples: benz (cd) indoline is obtained by adding lithium aluminium hydride to naphthostyril in ethylmorpholine at elevated temperature, hydrolysing the reacted mixture with water, shaking with ether and caustic soda lye and drying and evaporating the ether solution (1); 4-piperidyl (11) (cd) indoline is similarly obtained from 4-piperidyl (11) naphthostyril (2); compounds of the formul  <FORM:0730088/IV (b)/3> and <FORM:0730088/IV (b)/4> are similarly obtained from the compounds of formul  <FORM:0730088/IV (b)/5> and <FORM:0730088/IV (b)/6> respectively, the products being crystallized from petroleum ether (1) or ethyl acetate (3) or distilled under reduced pressure (2) and acetyl derivatives being recrystallized from ether (1, 2), alcohol (3) or a mixture of methylene chloride and alcohol (4). Specifications 670,991 705,436 and 728,660 are referred to.
Patent GB-1353349-A (GB)
Title: Winches
IPC: G21C7/14
Filed: 1971-04-19
Abstract: 1353349 Controlling winches BBC BROWN BOVERI & CO Ltd 19 April 1971 [25 March 1970] 24999/71 Heading B8B [Also in Divisions H2 and G6] A winch for controlling the vertical movement of a combined control and shut down rod 19 suspended from a winch cable 18 in a nuclear reactor, comprises a motor driven cable drum 8 having an eddy current brake 10 which is increasingly effective as the length of cable paid out approaches a predetermined value, a mechanical band brake 34 for the drum 8, and a cable tension monitor 22 over which the cable is paid out from the drum and which controls the mechanical brake. The monitor 22 having a pulley 45 for the cable 18 causes the winch motor to stop when the cable tension reaches an upper set value and causes the mechanical brake 34 to be applied to the drum when a minimum set tension value is reached. The motor 1 drives the drum 8 through transmissions 2, 3, 26, 28 and electromagnet clutch 4, a step up transmission 6 coupling one end of the drum 8 to a rotary disc 9 of the eddy current brake and a step down transmission 5 coupling the other end of the drum to a cam disk 7 controlling the eddy current brake and to a transmitter 16 energizing a rod position indicator 17. Pole spiders 11, 12 of the eddy current brake are rotated relative to each other to vary the brake effectiveness through gearings 13, 14, shaft 38 and cam follower 40, the cam 7 being profiled such that all the braking is applied at the end of downward. travel of the rod 19. The drum 8 is provided with a single annular slot 44 for guiding the cable, and the drum may be manually rotated from a handle 64 through hand gears 65, 66.
Patent GB-794343-A (GB)
Title: Selective membranes of ion-exchange material and the production thereof
Inventor: JONG GEERT JAN DE
IPC: C08J5/22
Filed: 1954-08-27
Abstract: A selective ion-permeable membrane comprising a hydrophilic sheet of a synthetic ionexchange polymer having an integral hydrophobic margin of the same polymer as the sheet but containing no ionogenic groups is produced by subjecting a hydrophobic sheet of polyethylene to a chemical treatment, e.g. with a liquid to introduce ionogenic groups into the sheet, the margin being either protected from the liquid, e.g. by being held out of contact therewith, or by being thicker than the rest of the sheet whereby an untreated core is left in the margin.  In an example, a strip of polyethylene is passed continuously through chlorosulphonic acid, e.g. at 30 DEG  C. to 40 DEG  C., the edges of the strip being upturned to avoid contact with the acid. Specification 747,948 is referred to.
Patent GB-1526584-A (GB)
Title: Optoelectronic ignition systems for internal combustion engines
IPC: F02P3/04
Filed: 1977-04-01
Abstract: 1526584 Ignition systems LUMENITION Ltd 1 April 1977[17 June 1976] 25006/76 Addition to 1497346 Heading F1B [Also in Division H1] In an opto-electronic ignition system for an internal combustion engine as claimed in claim 1 of Specification 1497346, the photo-detector 2  and at least the first Darlington pair Q 1 are formed on a monolithic chip together with a photo-area for the photo-detector. The photo-area may occupy between one quarter and one half of the total area of one face of the monolithic chip. The power Darlington pair Q2 may also be formed on the monolithic chip. Specifications 1483611, 1420814 and 1410782 are referred to.
Patent GB-1081063-A (GB)
Title: A process of manufacturing paper and paper products with a high rate of liquid absorption and a high opacity
IPC: D21H17/64
Filed: 1964-06-17
Abstract: Paper pulps and formed paper webs are treated with liquid ammonia or an alkylamine, and the treating agent is removed by washing with a solvent, e.g. water, for the ammonia or alkylamine or by evaporation. The alkylamine may have up to four carbon atoms in the molecule.  The ammonia or amine may be anhydrous or may be in a mixture with not more than 75% of water, including any water present in the paper or pulp to be treated.  Mixtures of two or more of these substances may be used.  If the material treated is in sheet or web form and is not to be subsequently reslurried, it must be held against shrinkage during the treatment.  The treatment increases the rate of absorption of liquids and the opacity of the material.  Part of the treating liquid may be pressed out before the remainder is washed out or evaporated.  The treatment may be applied to 90% - dry pulp which is then dispersed in water, may be beaten and formed into paper, with or without the addition of a wet-strength agent, e.g. a urea-formaldehyde condensation product, or of untreated pulp.
Patent GB-1309705-A (GB)
Title: Sealing device
IPC: F16J15/40
Filed: 1971-04-19
Abstract: 1309705 Shaft seal KALLE-REGULATORER AB 19 April 1971 [25 March 1970 25109/71 Heading F2B A sealing device for sealing a rotary shaft 3, e.g. of a consistency meter, in an opening in an upper wall of a container or pipe 1 filled with liquid under pressure, comprises a vessel 8 arranged over the opening, a gland 10 in the top of the vessel 8 arranged to receive the shaft 3, and means for maintaining a gas pressure in the vessel 8 so that the liquid is prevented from contacting the gland. In the device described, the shaft 3 carries a sensing member 4 in the pipe 1 and passes with clearance through a ring 5 having a groove 6. The groove 6 is covered by a diaphragm 7 and communicates via a passage 12 with a chamber 13 below a diaphragm 15 in a box 14. The groove 6, passage 12 and chamber 13 are filled with a neutral liquid. The diaphragm 15 is arranged to operate a valve 20 so that when the diaphragm 15 is raised due to a rise in the level of liquid in the vessel 8 the valve opens to admit air under pressure from a source 18 into the space 16 above the diaphragm 15, and via a conduit 17 into the space above the liquid in the vessel 8. Hence the liquid level is forced down until the valve 20 is again closed. A vent 33 prevents build-up of gas pressure in the vessel 8 due to leakage of the valve 20. The diaphragm 15 is urged downwardly by an adjustable spring 29. A pipe 11 permits rinsing fluid to be fed to the gland 10.
Patent GB-1037894-A (GB)
Title: New isourea derivatives and process for the production thereof
Inventor: GRIGAT ERNST
IPC: C07C273/00
Filed: 1964-06-17
Abstract: The invention comprises compounds of the general formula <FORM:1037894/C2/1> in which R1 is an aliphatic organic radical which contains at least one electron attracting atom or group which is a halogen atom or an aryl, ketone, carboxylic acid ester, sulphonic acid, nitro or cyano group, or R1 is an aromatic or heterocyclic radical which may be substituted by alkyl, cycloalkyl, dialkylamino, arylamino, aroylamino, nitro, sulphonic acid or -ester, carboxylic acid, -ester or -amide, alkoxy, aryloxy, acyloxy, acyl, aldehydo, thiocyanato, alkylmercapto, arylmercapto or cyano groups or halogen atoms or by <FORM:1037894/C2/2> or may have an aryl group, which may be substituted, fused thereto, R2 is hydrogen or an aliphatic, aromatic or heterocyclic radical which may be substituted, and R3 is an aliphatic, aromatic or heterocyclic radical which may be substituted, or R2 and R3 together with the nitrogen atom may form part of a heterocyclic system which may contain further hetero-atoms which, if nitrogen, may be part of the grouping <FORM:1037894/C2/3> in which R1 is as defined above and which heterocyclic ring may have an aryl group fused thereto.  The compounds are prepared by reacting a cyanic acid ester with a primary or secondary amine. Many suitable starting materials are listed.  Examples are given. In Example 13, 1-(4-methylphenyl)-3,3-pentamethylene-isourea ether decomposes on distillation to p-cresol and N-cyanopiperidine.
Patent GB-1046728-A (GB)
Title: Power supply circuits
IPC: H02M7/12
Filed: 1963-06-25
Abstract: 1, 046, 728. Automatic voltage control. WESTERN ELECTRIC CO. Inc. June 25, 1963 [June 28, 1962], No. 25144/63. Heading G3R. In a power supply circuit comprising a thyristor connected between a pulsating current input source and an output for regulated direct current, the point at which the thyristor becomes conductive in each pulsation of the input energy is controlled by energy storage means responsive to output voltage variations. As shown, a source 1 to 7 of full wave rectified pulsating current supplies a load 34 by way of a thyristor 14, a resistor 24 and an inductor 29. If the voltage across the load should decrease, the change in voltage as detected by the resistors 31, 32, 33 and the Zener diode 30 biases transistor 23 into conduction whereby capacitor 36 is charged over resistor 8, resistor 22, transistor 23 and resistor 31. When the potential on capacitor 36 exceeds the voltage across, Zener diode 10 transistor 16 is biased into conduction so that current flows in winding 17 of transformer 35; this current flow induces both a potential in winding 18, thus biasing transistor 16 further into conduction, and a potential in winding 19 which fires the thyristor 14 so that current flows from the supply source to the load. The arrangement is such that the capacitor 36 discharges through the thyristor 14 once the latter has fired and is thus prepared for the next cycle. At the same time the firing pulse is terminated by the action of diode 21 which biases transistor 16 into non-conduction; the thyristor is, in turn, extinguished by the induced potentential in inductor 29 at the end of each half cycle of input potential. Thus, the conduction interval of thyristor 14 is controlled in dependence upon output voltage variations, whilst the inductor 29 supplies current to the load over diode 20 when thyristor 14 is non-conducting, whereby the output voltage is kept at constant value. Resistors 24, 26 and 28, diode 25 and transistor 27 provide a conventional overcurrent protection circuit.
Patent GB-1071101-A (GB)
Title: Improvements in or relating to flexing devices
Inventor: CARLTON WILLIAM CHARLES
IPC: F16D41/18
Filed: 1964-06-17
Abstract: 1,071,101. Propellers. CARLTON TYPE SAVING CO. Ltd. June 8, 1965 [June 17, 1964], No. 25145/64. Heading B7V. [Also in Divisions B8, E2 and F2] A propeller has blades 8 moulded integrally with a boss 9 connected to a hub 10 by members 11 integral with boss 9 and hub 10; the boss and hub are substantially rigid whilst members 11 are flexible in the direction of their widths in the plane of Fig. 9 but are sufficiently deep to be substantially rigid in a direction perpendicular to this plane.
Patent GB-420330-A (GB)
Title: Improvements in decorating mouldable articles
IPC: B29C37/00
Filed: 1933-09-12
Abstract: Relief or intaglio decorations are applied to an unvulcanized rubber surface by first coating a detachable backing of paper, fabric, or the like with decorative rubber, partly or completely vulcanizing the coatings on the backing, and then applying the coated backing to the unvulcanized rubber surface, vulcanizing, and stripping away the backing.  The backing may be cut to the required pattern before the application of the rubber or subsequently thereto.  In the production of intaglio patterns a flat pressing surface is used and the pattern is below the surface by the thickness of the backing.  In the production of relief patterns the upper mould surface is recessed to register with apertures pierced through the applied coating and backing.  The decorative coating is always vulcanized and so has a greater hardness than the rubber surface to which it is applied thus producing a well defined edge of contact.  Specification 389,770 is referred to.
Patent GB-1394563-A (GB)
Title: Process for preparing benzamides
IPC: C07C315/04
Filed: 1973-05-29
Abstract: 1394563 Process for 2-alkoxy- or -alkenoxy- 4,5-substituted-benzamides SOC D'ETUDES SCIENTIFIQUES ET INDUSTRIELLES DE L'ILE-DE-FRANCE 29 May 1973 [1 June 1972 (2) 12 June 1972 3 April 1973] 25402/73 Heading C2C Compounds (I) in which R 1  is a hydrogen atom or a methyl group, Z is a C 1-4  alkyl radical or a C 2-4  alkenyl radical, X is a hydrogen atom or a nitro or acylamino group, Y is a hydrogen or halogen atom, or a group of formula SO 2 R 2  in which R 2  is an amino, monoalkylamino, dialkylamino, C 1-5  alkyl or halogenoalkyl group, n is 0, 1, 2 or 3, A is a radical of the formula in which R 3  and R 4  are identical or different alkyl groups or are joined to form a heterocycle with the nitrogen, or A is a heterocyclic radical (II) where R is C 1-4  alkyl or alkenyl and m is up to 4, are prepared by reacting a corresponding 2-alkoxy- or -alkenoxy-X,Y-substituted benzoic acid sequentially with an alkyl haloformate and H 2 N(CHR 1 ) n A. (I) can, if desired, be converted into acid addition or quaternary ammonium salts.
Patent GB-400759-A (GB)
Title: An improved front carrier for bicycles and the like
IPC: B62J7/00
Filed: 1932-09-13
Abstract: 400,759. Carrier-cycles. BENNETT, T. E. E., 111, London Road, St. Albans, Hertfordshire. Sept. 13, 1932, No. 25450. [Classes 136 (i) and 136 (iii).] A front carrier A adapted to be attached to the steering-head B of a bicycle, from which the front wheel has been removed, is supported on two wheels E mounted in forks D beneath the carrier, which forks are coupled together by arms G and a transverse rod H and have stems turning in ball heads C in the carrier structure under the control of steering-mechanism connected to the lower end of the handle-bar stem J. The steering transmission comprises a chain L, which is looped around a chain wheel K on the handle-bar stem J and passes outwards around guide wheels M for connection at its ends to the ends of the coupling-rod H.
Patent GB-338884-A (GB)
Title: Improvements in percussive hand tools
IPC: B25D11/10
Filed: 1929-08-21
Abstract: 338,884. Fluhr, L., and Verhaar, A. Aug. 21, 1929. Percussive hand tools.-The striker 7 provided with an adjustable pin 8 rocks on a pivot 6 by the action of a cam wheel 11, driven by hand or electrically, and is given its striking movement by an adjustable spring 16. A lug 6 on the striker actuates a pawl 24 to rotate a ratchet wheel 19 to the shaft of which the tool socket 22 is fixed. A check pawl 28 is provided, and the handle is fixed to the casing by rivets 3.
Patent GB-241240-A (GB)
Title: Improvements in ammunition for non recoil guns
IPC: F42B5/16
Filed: 1925-04-29
Abstract: 241,240. Pantoflicek, B. April 29, 1924, [Convention date]. Ordnance design; muzzle-loading.-To secure the projectile 2 of a non-recoil gun against falling out when the barred 1 is inclined downwards, a retaining pin 9 or other suitable device is provided. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a gun, shown in Fig. 2 (Cancelled) in which the recoil is taken by the barrel 4 which slides in bearings 10 and is brought to rest by suitable braking means. This subject-matter does not appear in the Specification as accepted.
Patent GB-892133-A (GB)
Title: Improvements in and relating to graft co-polymers
Inventor: MANN DENNIS CHARLES MACMILLAN
IPC: C08F279/02
Filed: 1958-08-08
Abstract: Graft copolymers are made by a process wherein a solid synthetic rubber containing less than 10% of gelled material and made from a monomer containing one or more double bonds or a mixture of such monomers, which mixture either contains no butadiene or more than 50% of butadiene, is reduced to a divided state in which the particles have a volume approximately the same as or smaller than that of a 1/4 inch cube which are then treated with a vinyl, vinylidene or divinyl monomer to swell the rubber and polymerization is effected in the presence of a free-radical catalyst.  Rubbers specified are polybutadiene, copolymers of butadiene with styrene or acrylonitrile and an isobutylene rubber.  Grafting monomers specified are styrene, methyl methacrylate and mixtures thereof and acrylonitrile. Catalysts specified are benzoyl peroxide, azobisisobutyronitrile and mixtures thereof.  An activator for the catalyst, e.g. dimethyl aniline or a polyamine, may also be present.  The resulting products may be used in blends with polystyrene or styrene-acrylonitrile copolymers.
Patent GB-362377-A (GB)
Title: Improvements in and relating to the control of the phenomena in electric circuits
IPC: G05F1/00
Filed: 1930-08-27
Abstract: 362,377. Wireless transmitting and receiving systems. WOLOGDIN, V. P., 1, Esperova Strasse, Leningrad, Russia. Aug. 27, 1930, No. 25612. [Class 40 (v).] Conditions in electric circuits, particularly those of high frequency, are controlled by varying the specific inductive capacity of the dielectric of a condenser by direct electrical action. The dielectric may be a monocrystal such as Rochelle salt. The Figure shows a microphone 7 coupled to such a condenser 1 in circuit 8 by a transformer 5. The invention is applicable to the tuning of a radio receiver or to the modulation of a radio transmitter.
Patent GB-661669-A (GB)
Title: A flow control fitting for pipe lines
IPC: F16K3/20
Filed: 1948-10-01
Abstract: 661,669. Valves. HAMER, L. S. Oct. 1, 1948. 25652/48. Class 135. A flow control fitting for pipe lines has a clamp section B telescopically mounted within a body section A, a plate C adapted to be clamped between faces 26, 27 on the respective sections AB, and an annular member 50 spaced from said faces and arranged in the body section A and around the clamp section for moving the sections axially relative to one another. The section A has a well or chamber 11 to receive the plate C through a passage 12. The annular member 50 engages a worm 61 on a transverse operating stem 60 by means of external teeth 62 and has internal threads 52 engaging corresponding threads on the inner part of the clamp section B. The annular member 50 is arranged in a counter-bore 20 closed by a flange 22. Balls 53 in grooves 54 allow the member 50 to rotate whilst preventing axial movement thereof. The inner end 18 of the clamp section B slides in a bore 17 having a packing 37. The counter-bore 20 has a packing 23. A projection 80 on the body section engages between spaced lugs 81 on the clamp section to prevent relative rotation whilst allowing relative axial movement. The stem 60 is operated by a cross member with spokes 70 and one of its bearings 65 is carried in a threaded tubular extension 67 locked by a set screw 71. The plate C comprises a solid end 40 and an apertured end 41 joined by a neck 43, both ends being grooved to receive packing rings 44. The two sections A, B have flanges 14 for connection to pipes or the like and the flange 14 on the body section A is joined to the side walls 31 of the passage 12 by reinforcing bars or ties 33. The body section A has a lubricant fitting 74 and a drain plug 47. In addition openings 55 closed by removable plugs 56 are provided for the insertion of the balls 53. A modification adapted for connection to pipe lines by welding is described.
Patent GB-330189-A (GB)
Title: Improvements relating to retort house gas governors
IPC: C10B27/06
Filed: 1929-08-23
Abstract: 330,189. Meters, Ltd., and Glover, W. T. Aug. 23, 1929. Fluid-actuated valves; closure member.-A lift valve member for retort house gas governors has two parallel sides a, b seating on two parallel faces c. d connected by transverse bars e, f and has an upper part g of inverted or dome shape. The parallel sides a, b are thickened and act as guides in guideways h in the casing and stops n limit the lift of the valve member, which is wholly exposed on one side to the inlet gas pressure and on the other side to the outlet gas pressure. The valve is balanced in any known manner.