baber/WOPTO huggingface dataset:
Patent GB-456040-A (GB)
Title: Improvements relating to positive carbons for intensive arcs with the beck effect
IPC: H05B31/06
Filed: 1935-12-30
Abstract: 456,040. Arc-lamp electrodes. COMPAGNIE LORRAINE DE CHARBONS POUR L'ELECTRICITE, 173, Boulevard Haussman, Paris. Dec. 30, 1935, No. 36002. Convention date, Jan. 25. [Class 39 (i)] The cores of electrodes for producing the " Beck effect" consist of carbon with one or more of the metals of atomic numbers from 23 to 28 inclusive, viz., iron, nickel, cobalt, manganese, chromium and vanadium, in metallic form. The metals may be from 15-70 per cent by weight of the core, or oxides, fluorides, oxyfluorides or other insoluble compounds of the rare earths may be added, when a suitable composition is 11 per cent iron, 41 per cent cerium fluoride, and the remainder carbon.
Patent GB-1120444-A (GB)
Title: Improvements in or relating to a method of retaining windings in electrical machine components
IPC: H02K3/487
Filed: 1965-08-23
Abstract: 1,120,444. Securing and insulating windings of dynamo-electric machines. ROBERT BOSCH G.m.b.H. 23 Aug., 1965 [31 Aug., 1964], No. 36021/65. Heading H2A. A winding or windings located within grooves 17 having restricted openings 20 in an electrical machine component, e.g. the armature core 16 of a D.C. motor driving a vehicle windscreen wiper, are retained when all are in place by injecting into each groove a metered quantity of thixotropic hard-setting plastics material 25, e.g. an unsaturated polyester resin self-hardening by polymerization, to occupy at least a portion of the groove space not occupied by the winding(s) and to underlie the shoulders 21 forming the opening, and then hardening the material which is retained in the grooves by the shoulders. The material 25 may extend axially throughout the length of each groove, Fig. 1 (not shown); or form plugs (29) either spaced axially or disposed only at the core ends, Fig. 3 (not shown). The injector device 26 may rotate the component after each injection operation. The slot liner 22 is of insulating paper.
Patent GB-848932-A (GB)
Title: Improvements in or relating to plastic jewellery
IPC: A44C11/00
Filed: 1956-11-26
Abstract: 848,932. Jewellery. WHEELER, L. R., and GRIFFIN, H. C. Nov. 26, 1956, No.36101,56. Class 43 [Also in Group XXV] An article or unit of jewellery comprises a deformable but non-expansible ring or frame structure 1 and a detachable bead-like centrepiece 3 adapted to be received within the structure, the structure and centrepiece having interengaging portions to retain the centrepiece and the ring or frame structure being formed of a resilient plastic material such that it may be bent or deformed to facilitate insertion or removal of the centrepiece. The interengaging portions may comprise pips 4 on one member engaging in sockets in the other member. Alternatively the centrepiece may have a groove to receive the inner rim of the frame structure, or a rib to engage in a groove in the inner rim portion of the frame structure. The ring or frame structure is moulded integrally with split end links 2 for connecting a series together. Protuberances 5 limit the pivoting of the unit. The centrepiece may be faceted to simulate a precious stone. Specification 848,083 is referred to.
Patent GB-1310010-A (GB)
Title: Method of combating weeds
IPC: A01N/
Filed: 1971-08-02
Abstract: 1310010 Combating weeds in crops FARBWERKE HOECHST AG 2 Aug 1971 [6 Aug 1970] 36259/71 Heading ASE A method of selectively combating weeds in a crop area of cereal, cotton, peanut, tobacco, leguminous plant or cabbage cultures, comprises applying to the crop area a composition comprising as active ingredient N-4-isopropylphenyl-N'-methyl-N'-methoxy urea, together with a carrier or other additives. The active ingredient may be combined with other herbicides and soil insecticides and many suitable compounds are specified.
Patent GB-1465221-A (GB)
Title: Sliding latch needle for loop-forming textile machines
IPC: D04B35/06
Filed: 1975-09-03
Abstract: 1465221 Knitting machines WIRKMASCHINENBAU KARL-MARX-STADT VEB 3 Sept 1975 [4 Sept 1974] 36266/75 Heading D1C A sliding latch needle for a weft or warp knitting, stitch bonding or crocheting machine comprises a longitudinally grooved stem 2 with an obliquely inclined needle breast 6 and a hook 4 whose tip 5 is tapered when viewed from above, a slide 3, 3' constituting the latch being slidable between open and closed positions in the grooved stem with its movement limited by one or more cross pins 11, 12 engaging oblong holes 9, 10 in the slide and a recess 8 being provided in the upper portion of the slide to receive the last-formed loop as it is knocked-over and prevent the slide from closing the hook while the needle is being advanced to form a new loop. The slide which suitably comprises two (as shown) or three elongate elements mounted side by side in the groove has a recess in its front end complementary to the hook tip 5, such recess being formed in the Fig. 1 embodiment by spreading the ends of the two elements. The groove in the stem is enlarged to accommodate the motion of said ends. An inclined edge 22 facilitates knocking-over of the loops. Openings 17, 18 allow for removal of dirt from the groove. A further cross pin may extend over the slide to guide the latter.
Patent GB-869756-A (GB)
Title: Bunker discharge apparatus
IPC: B65G65/48
Filed: 1957-11-21
Abstract: 869,756. Hopper discharge. MASCHINENFABRIK BUCKAU R. WOLF A.G. Nov. 21, 1957 [Nov. 23, 1956], No. 36290/57. Classes 78 (1) and 78 (4): Material from a bunker 1 is removed from a table 3 on to endless belt conveyers 16 by curved blades 8 rotating in a horizontal plane and mounted on trolleys 7 movable alongside the table, and vertical bridging of the material between the table and the bunker is prevented by ensuring that the trolleys always move together at the same speed. As shown, racks and pinions 11, 12 are provided to prevent wheel slip, and the polyphase asynchronous driving motors 13 are driven at identical but variable speeds by a selsyn-type drive, from a single prime mover and servo-generator (not shown). The rotating blades 8 are driven at variable speeds by electric motors which may also be. similarly coupled.
Patent GB-891594-A (GB)
Title: Steroid compounds and their preparation
IPC: C12P33/00
Filed: 1958-11-12
Abstract: The invention comprises 16a -alkyl-11a ,17a -dihydroxy-4-pregnene-3,20-dione and the preparation thereof by subjecting 16a -alkyl-4-pregnene-3,20-dione to oxygenating activity obtainable in a medium fermented by growing micro-organisms of the species Dactylium dendroides, by contacting 16a -alkyl-4-pregnene-3,20-dione with oxygenating enzymes produced by micro-organisms of the species Dactylium dendroides and by cultivating micro-organisms of the species Dactylium dendroides in an aqueous nutrient medium in the presence of 16a -alkyl-4-pregnene-3,20-dione.  Detailed examples are given.  16a  - Alkyl - 11b ,17a ,21 - trihydroxy - 4 - pregnene-3,20-dione is prepared by brominating 16a  - alkyl - 11a ,17a  - dihydroxy - 4 - pregnene - 3,20 - dione to form 16a  - alkyl - 21 - bromo - 11a ,17a - dihydroxy - 4 - pregnene - 3,20 - dione, reacting this compound with potassium acetate to form 16a  - alkyl - 11a ,17a , - 21trihydroxy - 4 - pregnene - 3,20 - dione - 21 - acetate, oxidising this compound with sodium dichromate in acetic acid to form 16a -alkyl-17a ,21-dihydroxy-4-pregnene-3,11,20-trione, converting this compound to the corresponding 3,20-bis-semicarbazone, reducing the bis-semicarbazone with sodium borohydride to form the corresponding 11b -hydroxy-3,20-bis-semicarbazone, and hydrolysing this compound to remove the carbazone groups.
Patent GB-1531710-A (GB)
Title: Ejection seats and drogue guns therefor
IPC: B64D25/10
Filed: 1975-11-17
Abstract: 1531710 Ejection-seat drogue gun ENG PATENTS & EQUIPMENT Ltd 17 Nov 1975 [19 Aug 1974] 36483/74 Heading B7G An ejection-seat drogue gun has a barrel 30 for receiving a drogue bullet 12, and two breeches 18, 19 communicating with the barrel, one breech 18 serving as a primary breech and the other 19 serving as a reserve for use in the event of a malfunction. The breeches each have a respective cartridge and a firing pin 28, 35, and the breeches communicate via bore 32, which results in ignition of both cartridges when one of the firing pins is actuated. Initiation of the ejection sequence actuates the primary breech via a time delay device 41, by means of a lanyard 16 connected to the aircraft, and also releases an armed firing pin in a main time delay unit (9), Fig. 1 (not shown), subject to the control of a barostatic device. Gas generated by a cartridge in the delay unit (9), which primarily releases a shakle clamping a lanyard extending from the main drogue parachuteto the personal parachute, is also fed via conduits (21), 20 to the second breech 19 and actuates this breech if necessary. In the event of delay unit (9) also failing so that both breeches are not fired, a manual over-ride lever (25) causes actuation of a separate gas generating cartridge (23) which feeds hot gas to the second breech 19 via conduits (22), 20. The drogue parachute (not shown) is connected to bifurcations 13 on the bullet 12.
Patent GB-365732-A (GB)
Abstract: 365,732. Hair - waving appliances. BERKOVI, L., 67, New Oxford Street, London. Dec. 5, 1930', No. 36718. [Class 131.] An electric heater for use in hair' waving comprises inner and outer tubes A, B between which is mounted an insulated electric resistance, the tubes resting at the bottom in a groove or recess C in an insulating collar D and being held at the top by an insulating ring F, the collar D and ring F being held together by a series of posts G of insulating material. The posts G, which may be straight or spiral and may be provided with ridges or other projections, are fixed to the collar D, and are secured to the ring F by screws H housed in a recess in the ring F.
Patent GB-1019426-A (GB)
Title: Propylene oxidation
IPC: B01J23/28
Filed: 1962-09-26
Abstract: Acetic acid is made by a process comprising reacting molecular oxygen with propylene in the gaseous phase at an elevated temperature, preferably 250-400 DEG  C., in the presence of a catalytic material which consists, optionally with a carrier, only of a mixture or mixtures and/or a compound or compounds, of one or more molybdenum oxides with one or more iron oxides and/or one or more titanium oxides, and the gas mixture is optionally contacted with water at above the boiling point of acrolein to absorb the acetic acid, and further, the mixture issuing from the absorber is optionally contacted with water below the boiling-point of acrolein to absorb acrolein.  It is preferred to use air with steam as the gas mixture. Molybdenum oxide catalysts with iron yield acetic acid as the main product. and molybdenum oxide with titania give acrolein and acetic acid in equal amounts. Carriers specified as suitable include silica gel, pumice, aluminium oxide or phosphate, boron phosphate, and carborundum.  The examples refer to fixed bed operation using an iron molybdenum catalyst in one case and a titanium molybdenum catalyst in the other, the by-products being acetaldehyde and acrylic acid.
Patent GB-427008-A (GB)
Title: Improvements in lenses for photography and the like
IPC: G02B13/00
Filed: 1934-12-21
Abstract: 427,008. Lenses. LEE, H. W., and KAPELLA, Ltd., 104, Stoughton Street, Leicester. Dec. 21, 1934, No. 36634. Addition to 377,537. [Class 97 (i)] The parent Specification describes a lens system comprising two separate components each consisting of a single collective element and a compound dispersive member consisting of a collective element in contact with a dispersive element. According to this invention the elements of each of the said compound dispersive members are arranged to have between them an air space in the shape of a collective meniscus lens, the said elements being in contact around their peripheries. Data are given.
Patent GB-893763-A (GB)
Title: Diesters of 2-propyl-heptanol
IPC: C07C31/125
Filed: 1958-11-14
Abstract: Diesters of 2-n-propyl-n-heptanol with dicarboxylic acids, e.g. phthalic, sebacic, azelaic and adipic acids, are used as plasticizers for vinyl resins.  An example is given of the use of di(2-n-propyl-n-heptyl)-phthalate as a plasticizer for a vinyl chloride copolymer, containing over 95% of vinyl chloride, in comparison with other di-decyl phthalates and di-(2-ethyl-hexyl) phthalate.ALSO:The invention comprises diesters of 2-n-propyl-n-heptanol will dicarboxylic acids, e.g. phthalic, sebacic, azelaic and adipic acids.  The esters may be prepared by mixing the alcohol with the acid or its anhydride, preferably with heating and in the presence of an esterification catalyst.  The 2-n-propyl-n-heptanol may be prepared by subjecting n-valeraldehyde to an aldol condensation and dehydrating the aldol to 2-n-propyl-2-n-heptenal in a single stage and their catalytically hydrogenating the heptenal either in 2 stages to give successively 2-n-propyl-n-heptenal and 2-n-propyl-n-heptanol or in a single stage to give 2-n-propyl-n-heptanol directly.  The 2-n-propyl-2-n-heptanol may be produced by adding a solution of n-valeraldehyde to a hot solution of an alkaline catalyst, e.g. sodium or potassium hydroxide or an alkali metal cyanide.  In the example 2-n-propyl-n-heptanol, prepared as above, is heated with phthalic anhydride in the presence of sulphuric acid as catalyst to give the diphthalic ester.
Patent GB-924043-A (GB)
Title: Process for the production of thio-phosphonic acid esters
IPC: A01N57/22
Filed: 1961-10-12
Abstract: Aromatic thiol- and thionothiolphosphonic esters are prepared by reacting phosphonites or thiophosphonites of formula: <FORM:0924043/IV(a)/1> where R is a saturated or unsaturated aliphatic, cycloaliphatic or aromatic radical, R1 is alkyl and X is oxygen or sulphur, with an aromatic sulphenic acid chloride R2SCl, where R2 is an aromatic radical.  R may be alkyl, vinyl, ethoxyvinyl, cyclohexyl or unsubstituted or substituted phenyl. R2 may be phenyl and may be substituted, e.g. by halogen, nitro, alkyl or alkylmercapto.  An inert solvent is optionally used.  The temperature is preferably kept low, e.g. 0-30 DEG C., at the beginning of the reaction and the reaction completed by standing at room temperature or by heating to 100-150 DEG C., or by both.  The products are useful as pest-control agents.  Examples describe the preparation of the following compounds:- <FORM:0924043/IV(a)/2> Ethyl hydrogen ethylphosphonite is prepared from ethylphosphonous dichloride and ethanol in the presence of pyridine, and converted to O-ethyl-S-hydrogen ethylphosphonothioite by the action of P2S5. Phenyl, 4-chlorophenyl and 4-methylphenyl sulphenic acid chlorides are prepared by the action of chlorine or sulphuryl chloride on the corresponding thiophenols.
Patent GB-924052-A (GB)
Title: Improvements in or relating to sweetmeats, medicaments or the like
IPC: A61K9/00
Filed: 1960-10-26
Abstract: A chewable lump or piece comprises a perforated envelope of rubber, or other resilient material permeable to saliva, enclosing one or more saliva-soluble substances, e.g. sweeteners such as saccharin, flavourings such as vanillin, tobacco extracts, and/or pharmaceutical substances such as throat antiseptics, caffeine, coumarin.  The substance may be in the form of particles dispersed in gelatine or other soluble jelly-like material, or an aqueous solution of the substance may be absorbed on a porous material, e.g. cotton lint or an ion-exchange resin (itself in granular form).  In an example, tobacco extract absorbed on a sodium-form cation-exchange resin is encapsulated with one or more flavouring and/or sweetening substances, and a second resin capable of liberating free acids from saliva salts also incorporated, the latter acids assisting in the liberation of the tobacco alkaloids absorbed on the first resin.  In a further form of the invention, the tobacco extract impregnated ion-exchange resin granules are mixed with gelatine and the mixture added to a rubber latex emulsion which is spread out, allowed to set and cut into mouth-size pieces which are then enclosed within the lumps or pieces of resilient material.
Patent GB-1082144-A (GB)
Title: Detector for ionizing radiation
IPC: H01J47/02
Filed: 1964-09-09
Abstract: 1,082,144. Discharge tubes. R. HOSEMANN, and H. WARRIKHOFF. Sept. 9, 1964, No. 36884/64. Heading H1D. The output signal of a radiation detector having an electrode and a counter-electrode is rendered independent of the wavelength of the incident radiation by constructing at least one of the electrodes of a plurality of layers of different materials. The layers act as an " electron filter " and enable the emission of the electrode to be adjusted. The detector may be vacuum or gas-filled and may be operated as a Geiger counter, proportional counter, neutron detector or dosimeter, utilizing electron, secondary electron or photo emission with or without gas collision ionization. In general the materials of the emitting electrode must have higher atomic numbers than the material of the collector. When utilizing secondary emission the materials of the emitting electrode must have higher secondary electron emission coefficients than the material of the collector. In a neutron detector materials which produce positive charge carriers must be in one electrode and materials which accept positive charge carriers in the other. The electrodes may be in the form of coaxial cylinders or prisms, or concentric spherical or ellipsoidal shells, Figs. 5a to 5d (not shown) to achieve as great an independence on the direction of the incident radiation as possible. In other constructions the emitting electrode is a hollow prism or cylinder, Fig. 6 (not shown) which may be provided with a window (F), Fig. 8 (not shown), and the collector is an axial wire or rod. Alternatively a wire collector in the form of a loop, spiral or network may surround a two-layer emitting electrode, Figs. 7a to 7d (not shown). One layer of the emitting electrode may be of photo-sensitive material or the collector may have a photo-sensitive layer (K), Fig. 9 (not shown).
Patent GB-929565-A (GB)
Title: Improvements in or relating to circuit elements
IPC: H01L23/40
Filed: 1959-10-30
Abstract: 929,565. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 30, 1959 [Nov. 3, 1958], No. 36911/59. Class 37. [Also in Group XXV] An electric circuit element such as a transistor or diode comprises a screw-threaded pin 2 for fixing to a carrier plate, the pin having both metric and English-measure threads.
Patent GB-1065257-A (GB)
Title: Magnetic tape recording and/or reproducing device
IPC: H04N5/78
Filed: 1965-08-27
Abstract: 1,065,257. Automatic speed control. SONY CORPORATION. Aug.27, 1965 [Aug. 28, 1964], No. 36923/65. Heading G3R. In a magnetic tape recording system for video signals, magnetic heads 8, 9 are mounted on a rotary disc 7 which is driven by A. C. capstan motor 19 through flexible coupling 23 whereby any variation in speed of the head assembly is prevented from affecting the capstan drive. During the recording operation, a vertical synchronizing signal is separated from a video signal in circuit 37 the output of which is applied to phase comparator 39. Signals representing the head-speed are derived from pick-up 41 and are also applied to the comparator. The error signal is delivered to coil 32, for braking the head assembly, through filter 43 and D. C. amplifier 44 so that the rotary speed of the head assembly is stabilized. The vertical synchronizing signal is also supplied through amplifier 45 to head 48 for recording a reference signal along the edge of the tape. During the playback operation, the signals from head 48 and pick-up 41 are compared for controlling the energization of coil 32.
Patent GB-955305-A (GB)
Title: Improved method and apparatus for the manufacture of flakes from glass and like heat-softenable mineral material
IPC: C03B17/06
Filed: 1962-09-28
Abstract: <PICT:0955305/C1/1> <PICT:0955305/C1/2> In the manufacture of glass flakes in which molten glass is drawn downwardly from an orifice as a thin-walled cylinder which tapers inwardly from the orifice and the cylinder is pulled, alternated, cooled and subsequently fractured to form flakes, any outward movement of glass from a tapered region of the cylinder consequent upon breakage of the cylinder prior to normal fracture is detected and signalled, the pulling of the cylinder being automatically stopped in response to the signal.  A glass cylinder 16 is drawn downwardly by pull rolls 38 from a glass furnace 10 from an annular orifice 14 over low-pressure air from an air inlet 28 extending therethrough, the pull rolls 38 having uniformly spaced perforations 40 around the periphery and alternating suction and pressure chambers 42, 44 with suction outlets 48 and air pressure inlets 50 so that the cylinder 16 is sucked against the rolls to split into two films which are then fractured by the air blast to form flakes.  The flakes fall through a shoot 52 and are sucked by a fan 56 into opening 54 and thence through an outlet 60 for collection. A waste outlet 62 at bottom of shoot 52 collects the glass when starting up or the fan is inoperative. Breakage of cylinder 16 is sensed by a pair of fingers 64 spaced below the orifice 14 and attached to micro switches 66 actuated by contact of the fingers 64 with the glass film.  The control box 72, when actuated for switches 66 through lines 68, 70, operates to retract fingers 64 and rolls 38 and stop the motor 58 for fan 56, the switches 66 and rolls 38 being mounted at the ends of piston-rods 80, 94 of air cylinders 78, 96 for sliding movement towards and away from the glass cylinder 16.  A time delay then operates, so that the cylinder can re-establish itself and waste glass falls into outlet 62, and the fingers 64 and rolls 38 moved back into operative position.  After a further time delay, if the cylinder 16 has not re-broken and the cycle restarted, the fan 56 is restarted, the glass of the cylinder having been pulled to the normal thickness.  The furnace 10 is preferably of platinum or alloy thereof and has electrical terminals 18, 20, 22, 24 connected to current supply to heat the walls and thence the glass, the whole being enclosed in refractory material.  The furnace is charged through openings 26 by glass marbles 30 in shoots 32 formed by spaced steel rods 34.  The glass flakes may be leached to form silica flakes and these flakes may be combined with unleached flake glass which acts as a cementing material and also with mica flakes, albumin flake or fibre or titanium fibres as reinforcing material and ablation-resistant material.  Specification 826,585 is referred to.