baber/WOPTO huggingface dataset:
Patent GB-1398802-A (GB)
Title: Catalytic dehydrogenation process for the production of olefins
IPC: C07C5/333
Filed: 1973-08-15
Abstract: 1398802 Dehydrogenating C 3 -C 20  paraffins VYSKUMNY USTAV PRE ROPU A UHLOVODIKOVE PLYNY 15 Aug 1973 [15 Aug 1972] 38611/73 Heading C5E Olefins are produced by catalytically dehydrogenating C 3 -C 20  alkanes at 400-650‹ C. and a space velocity of 500-5000 hr.<SP>-1</SP>, where the product is either partially recycled through the catalyst bed or a plurality of catalyst beds are used in series. When the product is recycled the weight ratio of recycled product to. the feedstock entering the catalyst bed may be 0À1 : 1 to 4 : 1. When a series of 2 to 4 beds are provided the product is re-heated on leaving each bed except the last before entering the next bed. The dehydrogenation of C 6 -C 20  alkanes is preferably carried out in the presence of H 2 . The dehydrogenation of C 2 -C 5  alkanes is preferably carried out in the absence of H 2  and at 540-650‹ C. and a pressure of 1-2 kg./cm.<SP>2</SP>. The catalyst is preferably Pt or Cr in combination with an oxide of Mn, Sn, Sb or an alkaline metal supported on Al 2 O 3 . Examples describe the preparation of n-butene, C 10 -C 12  olefins and n-heptene.
Patent GB-387582-A (GB)
Abstract: 387,582. Gas-lighters. BRAUN, K., 1, K÷nig Albert Platz, Klotzsche, near Dresden, Germany. June 27, 1932, No. 18133. [Class 75 (iii).] In a gas-lighter in which an ignition element a containing a filament is screwed into a tube b extending from a cap d fitted on a dry battery, the side wall of the cap is provided with a U-shaped aperture or incision f forming a switch tongue g for engaging an exposed part of the zinc casing of the battery to complete the circuit. The edges, or only the longitudinal edges, of the cap extending around the aperture are formed with an outwardly projecting bead h to protect the tongue. The cap is slotted at e to grip the battery.
Patent GB-1283078-A (GB)
Title: Pile fabrics and method of making them
Inventor: MIZELL LOUIS RICHARD
IPC: B32B27/12
Filed: 1969-08-01
Abstract: 1283078 Pile fabrics I W S NOMINEE CO Ltd 1 Aug 1969 [5 Aug 1968] 38771/69 Heading D1K Pile fabrics are made from animal skins or other pile fabrics by severing fibres from the skin or fabric, bringing the fibres into contact with a preformed softened thermoplastic film and pressing the fibres and film together with a pressure of from 10 to 500 p.s.i. to embed the fibres in the film. In Figure 1 a knitted pile fabric I with a woolen pile is passed under a roller 2 and suction box 3, the pile is severed by a bandknife 4 and deposited upon a conveyor 6 which transports under a thermoplastic film 7 into which they are pressed by heated nip rolls 9. The film 7 may have a backing 10 applied to it as shown in Fig. 3. In Figure 5 the pile from woollen skins 11 is severed and deposited onto a conveyor 12 which is driven at such a speed as to consolidate the fibres and to deposite them onto the thermoplastic film 7. Patterned pile fabric may be produced by overlaying the thermoplastic film with a perforated or non-woven sheet or an open woven or knitted fabric so that not all of the fibres are bonded to the thermoplastic film. Details of thermoplastic films are given.
Patent GB-991644-A (GB)
Title: Manufacture of hydantoin derivatives
IPC: C07D405/12
Filed: 1961-10-30
Abstract: 1-Aminohydantoin is prepared by reducing 1-nitrohydantoin by catalytic hydrogenation, preferably with the use of a freshly prepared Adam's catalyst.  The product is characterized by means of its benzylidene derivative.  1 - Nitrohydantoin is prepared by condensing glycine with urea, cyclizing the resulting hydantoic acid to hydantoin in aqueous acid solution and nitrating the hydantoin.  N - (5 - Nitro - 2 - furfurylidene) - 1 - aminohydantoin is prepared by condensing 1-aminohydantoin with 5-nitro-2-furaldehyde or the diacetate or oxime thereof.
Patent GB-1023260-A (GB)
Title: Improvements in or relating to methods of producing semiconductive materials and semiconductor elements made from such material
IPC: H01C17/065
Filed: 1964-09-24
Abstract: 1,023,260. Ohmic resistors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 24, 1964 [Sept. 27, 1963], No. 38956/64. Heading H1S. A semi-conductor material for making resistors is produced by sintering in a reducing atmosphere a mixture of oxides of magnesium, titanium and silicon, or compounds thereof, in the proportion of 0À5%to 3À0%by weight of titanium dioxide and 1À0%to 3À0%of silicon dioxide, these two oxides totalling together 2% to 5% of the mixture and the remainder being magnesium oxide. The proportions of titanium dioxide and silicon dioxide individually may be 1À7%or 1%-2À5%and 1À4%or 1À3%-2À0% respectively and the total proportions of these two oxides together may be 2À5%-4À0% or 2À8%-3À6%. Instead of magnesium oxide, magnesium carbonate may be used while the titanium and silicon dioxides may be wholly or partly replaced by magnesium titanate or magnesium silicate, the necessary oxides being produced therefrom by heating. A methyl cellulose or nitrocellulose may be used as a binder and removed by preliminary heating at 1300‹ C.-1400‹ C. for 120 minutes. Sintering may be effected at 1800‹ C. for 5-30minutes in an atmosphere comprising 85% by volume of nitrogen, 15% of hydrogen and up to 0À1% of oxygen. The oxygen content may be below 0À01%(0À003%)and the heating time 20 minutes. The resistors may be in the form of rods with electrodes.
Patent GB-1115630-A (GB)
Title: Improvements in or relating to the preparation of alkylethers
IPC: C07C43/00
Filed: 1966-09-01
Abstract: Compounds of the formula <FORM:1115630/C2/1> where R is methyl, ethyl or propyl, R1 is NH2 or NO2 and x is 1-3 may be obtained by reacting a nitroalcohol of the formula <FORM:1115630/C2/2> with methyl sulphate under etherification conditions; the nitro compound obtained may be reduced to give the corresponding amine. The etherification reaction may be effected at 25-150 DEG  C. in an inert solvent and suitably in the presence of an alkaline reagent. The reduction of the nitro compound may be effected, for example, by dissolving the nitroalkyl ether in a solvent and reducing it at 25-100 DEG  C. at 400-1000 p.s.i. in the presence of catalytic amounts of a hydrogenation catalyst, e.g. Raney nickel.ALSO:Waxes may be emulsified using compounds of the formula:-  <FORM:1115630/B1-B2/1> wherein R is methyl, ethyl or propyl and x is 1-3.  In an example, oleic acid is added to molten caraauba wax and 1-methoxy -2-methyl-2-propylamine is added to the mixture.  After heating, the mixture is added to water to give an aqueous emulsion of caraauba wax.
Patent GB-1433300-A (GB)
Title: Yarn winding apparatus
IPC: B65H54/34
Filed: 1974-09-06
Abstract: 1433300 Winding transfer-tails E I DU PONT DE NEMOURS & CO 6 Sept 1974 [7 Sept 1973] 39013/74 Heading D1J An apparatus for winding a transfer tail on each of two coaxial yarn tubes 8 arranged in end-to-end relationship comprises a fixed yarn guide 1 for each yarn 2, 3; a first-threading yarn traverse guide 26 for each tube 8, a yarn cutting device 9 in proximal alignment with the vertical plane between the tubes 8 and disposed beyond the tubes 8 from the fixed guide 1; and a pair of retractable yarn guides 4 positioned between the guides 1 and the traverse guides 26, the guides 26 being retractable away from the tubes 8. In operation the yarn guide 4 is moved by a cylinder 5 to project over a drive roll 6. The two yarns 2, 3 are then inserted in the yarn guide 4, wrapped 1¢ times around the tubes 8 to form a wrap 17 and then converged through the cutting device 9 into a sucker gun 22. As soon as the yarns 2, 3 are in the gun 22 the operator moves a valve 11 to cause cylinder 18 to operate the cutter 9 and cylinder 5 to cause the yarn guide 4 to retract. The out yarn ends are trapped by the wrap 17 to cause wind-up to commence and when the yarns eventually escape from the guide 4 the pins 1 cause the yarns to move towards, and to be picked up by, the traverse guides 26. As the yarns move away from the tail winding position they describe a helical path along the tubes 8 to form transfer tails. In Fig. 3 the guide 4' has inwardly inclined surfaces 4a which, when the guide retracts, forces the yarn wraps 24 to move towards the abutting ends of the tubes 8 and so cross over the cut ends to trap them securely. Two additional thread lines 13, 14 are held temporarily in a fixed guide 12 positioned beyond the end of drive roll 6 for later attachment to abutting yarn tubes on a second chuck 20. The running yarns are held in sucker gun 22 which carries them to a waste bin during string up. It may be preferable to string up the tubes on chuck 20 before those on chuck 7, depending upon the particular combination of machine elements. For Figures see next column
Patent GB-990008-A (GB)
Title: A locking device for interconnection of two parts
IPC: E05C19/06
Filed: 1963-10-04
Abstract: 990,008. Stud and socket fastenings; blade spring catches. S. W. BENGTSSON. Oct. 4, 1963 [Oct. 12, 1962; May 20, 1963], No. 39189/63. Headings E2A and E2B. In a locking device comprising a member having at least one resilient locking bolt extending from a shoulder thereon and adapted to engage a socket in another member, the bolt having an off-set free end portion adapted to snap engage a locking edge of the socket, at least one guide arm extends from the shoulder laterally of the bolt and is adapted to co-operate with a corresponding inner surface of the socket. In the arrangement shown in which a member A may be attached to a part 4 by a stud and socket fastener 6, 6<SP>1</SP>, and the member is provided with two locking bolts 8, 8, the free ends of which are adapted to snap engage through an opening 18 in a socket member B, the member A is provided with two guide arms 11, 11, which in the assembled condition of the device are wholly enclosed by the socket member B. The members A and B are also provided with co-operating guide flanges 17 and 16 respectively and the member B may also be attached to a part 5, by a stud and socket fastener 6, 6<SP>1</SP>. In another embodiment Figs. 8-16 (not shown) a single locking bolt is used, the bolt being flexible for snap engagement with the socket opening in a plane substantially perpendicular to the rear side of the member A. In a similar arrangement, Figs 17, 18 (not shown) a projection on the bolt engages an aperture wall of the socket member, the bottom of the latter being closed. In a further embodiment Figs. 19 and 20 (not shown), similar to that of Figs. 8-16, the free end of the locking bolt is movable in a plane substantially parallel with the rear wall of the socket member. In all embodiments the device is made of a plastics material.
Patent GB-1201943-A (GB)
Title: Colour photographic images and compounds used in their preparation
IPC: G03C7/32
Filed: 1967-08-25
Abstract: 1,201,943. Photographic colour couplers. FERRANIA S.p.A. Aug.25, 1967 [Aug.30, 1966], No.39191/67. Heading G2C. [Also in Division C2] A photographic silver halide emulsion containing one or more coupler compounds having the general formula: - wherein R represents a coupling residue R<SP>1</SP> represents a C 4-20  branched alkyl group and n is 1 or 2. Examples are given in which the above coupler compounds are used in the form of a dispersion and added to a silver chlorobromide emulsion. Couplers specified are of the 1-hydroxy-2-naphthamido and benzoylacetyl types.
Patent GB-1202237-A (GB)
Title: A base for a spherical container
Inventor: ERIKSSON PER-OLOF
IPC: B65D90/12
Filed: 1967-08-25
Abstract: 1,202,237. Foundations for spherical tanks. UDDEHOLMS A.B. 25 Aug., 1967 [25 Aug., 1966], No. 39197/67. Heading E1T. A spherical storage tank 3 of steel is supported on a concrete base 1 having a saucershaped supporting surface 3a contoured to conform with the corresponding surface of the tank when distorted under maximum loading conditions. The tank has a welded flange 6 seated in a recess 5 in the base 1 and an insulating layer 4 of rubber coated with graphite and a corrosion-inhibiting fat is disposed between the members 1, 3 as shown.
Patent GB-1438524-A (GB)
Title: Electrode for a gas and/or vapour discharge lamp and method of forming the electrode
IPC: H01J61/073
Filed: 1973-08-20
Abstract: 1438524 Cathode constructions PATENTTREUHAND - GES FUR ELEKTRISCHE GLUHLAMPEN mbH 20 Aug 1973 [18 Sept 1972] 39318/73 Heading H1D A h.p. discharge lamp electrode comprises a rod 1 partly enclosed by 2 contiguous porous sintered zones 7, 5; the zone 7 partially enveloping the other zone 5 which contains emissive material. Zone 4 is formed from compressed powdered W, ZrC or LaB 4  mixed with Zn, Cu or Au and sintered up to 2600 C., thereby removing the Zn, Cu or Au. A mixture of 50% W, ZrC or LaB 4  and 50% of the oxides of Ba, Ca and Th or Ba cirate is added and the assembly sintered up to 2000 C.
Patent GB-357453-A (GB)
Title: Improvements in or relating to liquid fuel
IPC: C10L1/02
Filed: 1930-12-31
Abstract: A liquid fuel is made by adding a lower monohydric aliphatic alcohol, or a mixture of such alcohols, to crude oils such as petroleum, shale, or coal tar oil, in an amount sufficient to hold in solution or suspension the wax and other normally insoluble constituents of the oil.  About 10-50 per cent of "Power alcohol" may be used, and small amounts of petrol or benzol may be added.  Ethyl alcohol may be denaturated by addition of, for example, 20 per cent of such crude oils.
Patent GB-1395714-A (GB)
Title: Tyre and wheel rim assemblies
IPC: B60C15/024
Filed: 1971-08-21
Abstract: 1395714 Pneumatic tyre and wheel rim assemblies DUNLOP Ltd 1 Aug 1972 [21 Aug 1971] 39344/71 Heading B7C In a pneumatic tyre 3 and wheel rim 1 assembly a circumferential notch 2 is provided adjacent one bead seat of the rim, and the bead 5 of the tyre on this bead seat has a toe portion with a radially or substantially radially, inwardly directed annular extension 6 comprising elastomeric material, the extension 6 resting freely in the notch 2 and, in use, being compressed into the notch upon tilting of the bead 5 under the influence of lateral forces on the tyre, e.g. such as occur when the tyre is deflated, so that the bead is restrained from axially inward movement on the rim. As shown in Fig. 1, a single notch 2 may be provided adjacent the outboard bead seat of the rim, both tyre beads 5, 8 having an annular toe extension 6, 7 respectively, the extension 7 being stretched to lie flat on the rim base. A radially outwardly projecting annular protrusion may be provided on the rim adjacent the extension 7 (Fig. 2, not shown), or adjacent, the axially inner side of the notch 2 (Fig. 3, not shown). The or each notch and bead toe extension may have a radially inwardly tapering cross-section, and several examples of suitable cross-sectional forms are illustrated in the Specification (Figs. 4-15, not shown). The wheel rim may be a circumferentially split rim or a crimped rim, e.g. a rim whose well has been closed by axial compression after mounting the tyre, the notch in the rim being located at the crimp or split. The tyre may have a steel or textile cord radial ply carcass and a breaker assembly, an aspect ratio of between 30% and 75%, which is substantially flat in transverse profile and whose width is greater than the width between the rim flanges. Rigid cores of squat cross-section may be provided in the beads. A liquid lubricant may be provided in the assembly to lubricate, and thus reduce friction between, contacting interior surfaces of the tyre on deflation. Specifications 890,959; 1,359,461; 1,359,467 and 1,359,468 are referred to.
Patent GB-1162405-A (GB)
Title: Improvements in or Relating to Mobile Lifting Equipment
Inventor: HOLLOWAY VICTOR LEONARD
IPC: B66C23/00
Filed: 1967-08-26
Abstract: 1,162,405. Mobile lifting equipment. MOBILE LIFTING SERVICES Ltd. 16 Aug., 1968 [26 Aug., 1967], No. 39354/67. Heading B8B. Lifting equipment comprises a beam with end portions 11 attached to the jibs 5 of two similar mobile cranes and with a centre portion 37 forming a portal. Each end portion 11 is part of an end fitting 9 which comprises an attachment frame 10 and universal pivotal connection 12. Each end portion 11 carries an anchor point 25 for a derrick rope 6 on an outrigger 23 and pulleys 26, 27 for a lifting rope 7 which passes to a pulley block 28. The equipment is assembled by lifting the jibs 5, complete with the end fittings 9 in the conventional manner, temporary, adjustable stays 31 being fitted. The centre portion 37 is then lifted into position using a third crane (not shown) and brackets 38 and pins 38 inserted by a man in a bosun's chair (not shown).
Patent GB-394805-A (GB)
Abstract: 394,805. Aerials. BULGIN, A. F. and BULGIN & CO., Ltd., A. F., Abbey Road, Barking, Essex. June 2, 1932, No. 15651. [Class 40 (v).] A quick-action two - way aerial switch, fitted with a safety-gap for lightning, and with a fusewire, and mounted on a common baseplate, is characterized by the provision of a cover fitted with inspection windows to show the position of the switch, and the condition of the spark-gap and fuse. A pair of strips 10 with serrated edges 10a form the spark-gap. The spring-controlled switch-blade 9, in the position shown, connects the binding posts 8, 12 so that the aerial is directly earthed. When swung over to the left, the aerial downlead is connected via the terminals 8, 13, fuse wire 15, and terminals 5 to the receiving set. The switch is operated by a handle 24, Fig. 4, which protrudes through the cover-plate. The end 9a of the switch carries a disc which masks apertures in the cover showing the words " on " and " off, " so as to indicate its effective position at any time.
Patent GB-1527804-A (GB)
Title: Method of manufacturing integrated circuits
IPC: H01L21/762
Filed: 1976-09-23
Abstract: 1527804 Integrated circuits NCR CORP 23 Sept 1976 [1 Oct 1975] 39502/76 Heading H1K In a method of making an integrated circuit, in particular a diode matrix, two intersecting sets of parallel insulating regions are formed in a semi-conductor layer 14 provided in a substrate 12 of a conductivity type opposite to that of the layer, one of the sets extending only partially through the layer whereas the other extending completely through the layer such that interconnection between portions of the layer below the shallow insulating regions persists; and circuit components are formed in and/or on the isolated areas. Using photo-resist layers (18, 24), Figs. 1A, 3A (not shown), and a silicon nitride layer (16) as etching masks, the two sets of perpendicular grooves are formed in N-epitaxial silicon layer in two etching steps. The insulating material in the grooves is grown by oxidation of silicon in steam using silicon nitride as a mask, and this is followed by diffusion of boron from boron tribromide gas in the epitaxial layer to form diodes in the isolated areas. Metal contacts 42, Fig. 9A, in the diffused P-regions of the diodes are provided by sputter deposition through openings in an oxide passivating layer 30.1. P regions of the diodes in rows 1, 2, 3 are interconnected by conductive lead lines 42.1.
Patent GB-1279519-A (GB)
Title: A device for detachably attaching a timepiece movement to a watch casing
Inventor: KITAZIMA SEIZO
IPC: G04B37/05
Filed: 1970-08-17
Abstract: 1279519 Watches CITIZEN WATCH CO Ltd 17 Aug 1970 [16 Aug 1969 25 Aug 1969] 39623/70 Heading G3T A ring 10 for attaching a watch movement 22 to a middle ring 35 of a case has a web 11 with circumferential slots 26-28 to provide axial resilience, and a flange 12 from which fixing tongues 16, 17 are axially offset. The tongues are provided with holes 16a, 17a through which the ring is screwed to a plate (44) Fig. 2 (not shown) of the movement 22. Tightening of the fixing screws (36) causes the ring 10 to be expanded along a diameter joining the tongues 16, 17; the flange 12 is therefore provided with enlarged edge portions 33, 34 so that substantially all the outer periphery of the flange 12 is brought into contact with the inner surface of the ring 35. Axial projections 29-31 resiliently press against a shoulder 32a on the back 32 of the case, after assembly, to absorb external shocks. Embodiments with various forms of fixing tongues are described, and the fixing screws may be replaced by pins with tapered heads.
Patent GB-887480-A (GB)
Title: Improvements in or relating to closures for carboys and other containers
IPC: B65D41/04
Filed: 1959-11-23
Abstract: 887,480. Container closures. FREEMAN, W. S. Nov. 10, 1960 [Nov. 23, 1959], No. 39630/59. Class 125(3). A closure for relieving excess pressure in a carboy or like container comprises an annular washer 19 located in a well 18 formed on the top of a screw cap, the cap and washer being provided with venting apertures so arranged that there cannot be alignment between all the apertures in the cap and all of those in the washer. An annular channel 23 in the washer forms a passage between the apertures 24 in the cap and the apertures in the washer.
Patent GB-986476-A (GB)
Title: Improvements in or relating to testing devices
Inventor: MAY FRANCIS WIPPELL
IPC: G01R31/327
Filed: 1962-10-19
Abstract: 986,476. Photo-electric gauging. STANDARD TELEPHONES & CABLES Ltd. Oct. 18, 1963 [Oct. 19, 1962], No. 39651/62. Heading G1A. [Also in Divisions H1 and H4] The air gaps of a rocking armature device are checked and adjusted by shining light through each gap, comparing the intensity of light passing through, and striking the armature at a point that will tend to reduce the difference in size of the gaps, the strength of the blow depending on the degree of difference. Light from a lamp 1, Fig. 2 is collimated and split into two beams which pass through the air gaps of a rocking armature electroacoustic transducer and are focussed on to photo transistors 9, 10. The output difference of transistors 9,10 is used to energize one of the solenoids 14,15 Fig. 3 operating the hammers 16, 17 to reduce the larger gap. This is repeated until the difference in outputs is within a predetermined tolerance. The sum of the outputs of transistors 9, 10 may be used to reject transducers with dirty, overlarge or oversmall gaps.
Patent GB-345947-A (GB)
Title: Improvements in cable installations
IPC: H02G15/24
Filed: 1929-12-28
Abstract: 345,947. Cable joints and end constructions. GENERAL CABLE CORPORATION, 420, Lexington Avenue, New York, U.S.A.-(Assignees of Fisher, H. W. ; 119, Water Street, Perth Amboy, New Jersey, U.S.A.) Dec. 28, 1929, No. 39670. Convention date, Jan. 4. [Classes 36 and 38 (i).] Oil is supplied under pressure to the far end or intermediate points of an oil-filled cable during jointing so that ingress of air at the cut end of the cable is prevented. The flow of oil is adjusted so that the exposed insulation is protected by a film of oil. A bushing 9 is applied to stop the flow of oil through the internal grooves of the sheath 7 and a temporary plug may be inserted in the cable bore. A varnished cambric wrapping 5 is wound over the paper insulation 4 near the ends of cable lengths to prevent percolation of oil through the paper. When the paper insulation is cut back the removal of foil 6 and cambric 5 allows oil to ooze through the paper and prevent ingress of air. The joint is covered with paper insulation 10 with stressdistributing elements 11 as described in Specification 273,225, [Class 38 (i), Electric couplings &c.], and is enclosed in a casing 13 attached in an oiltight manner to the sheath 7. Specifications 7766/14 and 247,143, [both in Class 36, Electricity, Conducting &c.], also are referred to.