baber/WOPTO huggingface dataset:
Patent GB-1311817-A (GB)
Title: Process for producing carbon fibres
IPC: D01F9/22
Filed: 1971-04-19
Abstract: 1311817 Carbon fibres BAYER AG 19 April 1971 [14 March 1970] 23812/71 Heading C1A Carbon fibres are produced by heating polyacrylonitrile fibres in an atmosphere containing free oxygen at between 150 and 400 C. and then carbonizing at a temp. greater than 400 C. in a moving atmosphere containing water vapour in an amount of 0À5 to 20% by volume. The water vapour may be introduced in the carbonizing zone by passing the heat treated fibre through water or an aqueous liquid when passing it to the carbonization zone. The preferred process is a continuous process, and the water or aqueous liquid is at a temp. below 100 C. and at normal atmospheric pressure. The non- aqueous component of the aqueous liquid may contain some or all of the elements hydrogen, carbon nitrogen and oxygen. The aqueous liquid may contain an acid, an alkali, an alcohol, an aldehyde, a ketone, hydrazine, or a hydrazine compound. The polyacrylonitrile fibre may be passed from a stock-roll 1 through shaping rollers 4 and tension rollers 3 through oxidizing zone 7. On leaving the oxidizing zone the fibre passes through further tension and shaping rolls 5 and 9, and is then passed via a funnel 18, into a trough 15 containing aqueous liquid which is arranged via dip-leg 20 to constitute a gas-tight barrier for the carbonizing furnace 13. The fibre leaves the carbonizing furnace to be wound up on take-up roll 11.
Patent GB-1235512-A (GB)
Title: Method of producing anhydrous hydrofluoric acid
IPC: C01B7/19
Filed: 1968-05-20
Abstract: 1,235,512. Hydrogen fluoride; metal ammonium fluorides. UGINE KUHLMANN. 20 May, 1968 [30 May, 1967; 27 Oct., 1967], No. 23906/68. Heading C1A. Anhydrous HF is produced by reacting NH 4 - HF 2  with a metal-containing fluoride to evolve HF, and decomposing the metal ammonium fluoride formed into gaseous NH 4 F and the metal-containing fluoride, which is recycled. The metal-containing fluoride may be a simple fluoride of Bi, Ge, Co, Cu, Mn, Zn, Mg, Fe, Ni, Sn, Th, Ti, Al, In, Zr, Cr, V, or U, or a double fluoride of ammonium and Al, Fe, Zr, In, Cr, V, or U, which has a lower co-ordination number than that obtained by reaction with NH 4 HF 2 . The NH 4 HF 2  may be obtained by washing gases containing HF with ammonia, adding the NH 4 F evolved in the second stage, and heating the solution to form NH 4 HF 2  and gaseous NH 3 , which is reused. The first stage may be effected at 125-200 C. The pressure throughout may be atmospheric or higher. In examples, the initial fluoride was AlF 3 , ZrF 4 , NH 4 AlF 4 , or NH 4 ZrF 5 , and the intermediate was (NH 4 ) 3 AlF 6  or (NH 4 ) 3 ZrF 7 .
Patent GB-281049-A (GB)
Title: Improvements relating to taps or cocks combined with locks or like security devices
IPC: F16K35/08
Filed: 1926-09-28
Abstract: 281,049. Baker, H. J., and Baker, H. S. Sept. 28, 1926. Locks, permutation. - In a security device for a petrol or other tap or cock i the body h of the tap in which the plug works is provided with a gapped ring k and a rotatable plugoperating cover j carrying a number of rota,table elements l (three shown) which, when the tap is closed, occupy the gaps in ring k, and prevent rotation of the plug, unless the elements m are adjusted to predetermined positions in which notches in the elements allow them to pass the segments of the ring. The cap may engage the body by bayonet lugs m so positioned that the cap, the rotary movement of which may be limited bv a screw, not shown, cannot be disconnected when the tap is in the closed position.
Patent GB-1441054-A (GB)
Title: Pulley wheels for v-belts
IPC: F16H55/38
Filed: 1974-05-30
Abstract: 1441054 Pulleys P G RYAN 30 May 1974 23966/74 Heading F2Q A pulley for a V-belt comprises a disc 4 having two flanges 2, 3 defining a V-shaped peripheral groove 5, one or both flanges being provided with a series of replaceable inset members, forming inwardly facing projections 12 at circumferentially spaced intervals, for exerting lateral local pressure on a belt running under tension in the groove. The projections may be arranged in directly-opposed pairs, Fig. 2, or may be staggered, Fig. 4. The projection heads 12 are rectangular in plan, and have a wedge-like triangular cross-section which may be of various forms (Figs. 6-12, not shown) each of which presents a ridge which becomes oriented radially to the pulley axis. The inset members each have a shank 11 of rectangular cross-section, inserted through a correspondingly shaped aperture 10, and may be riveted in place, the riveted portion 11a being removed by grinding whenever replacement of a worn inset member is required.
Patent GB-1395292-A (GB)
Title: Electrical connector
IPC: H01R4/24
Filed: 1973-05-21
Abstract: 1395292 Electric couplings AMP Inc 21 May 1973 [14 June 1972] 24031/73 Heading H2E An electrical connector 10 for insulated wires comprises a housing with a base 12 having a plurality of horizontal grooves 14, 16, each for receiving one wire and an integral lid or lids 50, 52, grooved and hinged thereto by long flexible straps 58 with hinges 60 so that its or their groove(s) 56 may be aligned with grooves 14, 16, the base having perpendicular to the grooves a slot 26 containing an upstanding metal plate 24 with wire receiving slots 34, 36 perpendicular to the bottom of the base opening at the top edge in wire-receiving mouths above grooves 14, 16 so that the wires can by closing the lid(s) 50, 52 be forced perpendicularly to their axes into the slots 34, 36 whose edges pierce the insulation to make contact with the core of the wire. The lids 50, 52 are guided by arms 38, 40 fitting in grooves 66 (Fig. 4, not shown). The grooves may be of diameter larger than the wires accommodated. The contact member may be of phosphor bronze or cartridge brass and be 0À032 inches thick and its resilient fingers 30 32 (Fig. 3, not shown) flex into slot 26, which is wider at its top than its bottom so that the base does not flex. Locking rings 68 engage lower surfaces 70 of locking bosses (62) 64. Each lid has a groove 72, which receives the upper portion of 24, and bridges 74 which fit into slots 34, 36 to force the wires into them. The connector is formed by conventional injection moulding from tough resiliently flexible polymeric insulating materials, e.g. polypropylene, nylon polycarbonate or other suitable plastic. There may be additives such as flame retardants or pigments. Connections to the wires may be made at their ends or intermediate positions.
Patent GB-355493-A (GB)
Title: Improvements in or relating to adjustable bearing bushes
IPC: F16C25/02
Filed: 1930-08-11
Abstract: 355,493. Cylindrical journal bearings. COLLET & ENGELHARD WERKZEUGMASCHINENFABRIK AKT.-GES., 130, Bernardstrasse, Offenbach-on-Main, and SCHARFF, W., 42, Burnitzstrasse, Frankfort-on-Main, both in Germany. Aug. 11, 1930, No. 24032. [Class 12 (i).] A split-bearing bush k having a conical periphery and accommodated in the conical bore h of a housing has a longitudinal taper slot a in which a fillet or wedge l is fitted. The outer face of the bush k has flutes e and upon the ends are screwed nuts m, n, the inner edges of which bear upon the side faces of the housing and upon the ends of the wedge l. To adjust the bush k for wear it is moved axially by operating the nuts m, n, the wedge however remaining stationary during adjustment. The taper of the wedge l and that of the periphery of the bush k are so related that the wedge l always exactly fits the wedge-shaped slot a.
Patent GB-168517-A (GB)
Title: Improvements relating to traffic controlling apparatus for railways and the like
IPC: B61L3/22
Filed: 1920-08-18
Abstract: 168,517. McKenzie, Holland, & Westinghouse Power Signal Co., Ltd., (Union Switch & Signal Co.). Aug. 18, 1920. Electrical systems, automatic; track apparatus actuating signals on trains and for stopping trains. -Insulated block sections are supplied with direct current from a source 3, and with alternating current from a transformer B, one winding of which is connected in the direct-current circuit. The direct current energizes the track relay 4, which controls the supply of energy from the alternating-current source to the section in the rear. The alternating current in the track rails is caused to control by induction and amplifying devices a relay controlling signals or train-controlling devices. Fig. 2 shows one form of train equipment in which current through the axle W induces current in the coil 7 in a circuit a including a coil 11 surrounding laminated polepieces of a permanent magnet 9 which influences a tuned-reed armature 13 so as to cause vibrations of a plate 19 of a microphone cell connected to the mid-point of the winding of a transformer C, the ends of which are connected to the endplates 17, 18 of the microphone. The transformer C supplies current to an induction motor relay S controlling lamps R, G; one stator winding of the relay is connected to a phase-splitting device 25, 26. In a modified apparatus, two cores in proximity to the rails are wound with coils connected to an electron valve amplifier and a relay controlling the signals.
Patent GB-1300508-A (GB)
Title: Heat-energy system
IPC: F24H1/00
Filed: 1971-04-19
Abstract: 1300508 Heat exchangers MITA GUDMAND-HOYER [trading as DAN-FIBE-ENERGY] 19 April 1971 [16 March 1970] 24096/71 Heading F4A [Also in Division F1] An apparatus for producing hot fluids comprises a heat exchanger including a burner M, Fig. 1, having inlets 1 and 2 for fuel and primary combustions air and an inlet in the form of a mushroom-shaped body 5 for secondary combustion air, the stream of fuel and primary air and the stream of secondary air being directed axially against one another, at a perforated heat-resistant screen 3 as shown, so as to be deflected radially to form a substantially annular flame in slit 6. The heat exchanger comprises an inner combustion gas channel I having one end adjacent the body 5 and the other end communicating with one end of an outer combustion gas channel J whose other end extends over the body 5 and communicates with an outlet K; a space B for fluid to be treated is formed between the inner and outer channels and is in communication with a further space for fluid to be heated within the inner wall of the channel I. The several fluid spaces are coaxial and are preferably spherical, although they may be cylindrical. The inner fluid space may be divided into a liquid chamber E and a steam chamber G by an inclined partition N having flow passages 7, 8 at its upper and lower ends. In Fig. 2 (not shown) a pot burner is used and the shield 3 dispensed with, the secondary air passing up centrally through the apparatus to the body 5. The apparatus may be embodied in a hot gas engine, Fig. 3, in which a working fluid such as helium is heated in channels 20, 21 and cooled in chamber R, being used to drive pistons 22, 23 back and forth with respect to one another. There is a thin plate regenerator S.
Patent GB-900384-A (GB)
Title: Improvements in or relating to apparatus for the continuous treatment of finely divided materials
Inventor: CLENNELL WILLIAM ARNOLD
IPC: F26B17/00
Filed: 1959-07-14
Abstract: 900,384. Manures. THOMPSON INDUSTRIAL CONSTRUCTIONS Ltd., JOHN. Sept. 13, 1960 [July 14, 1959], No. 24161/59. Class 111. [Also in Group XXX]. In an installation for the preparation of compost, material is distributed over a system of tipping troughs 11 by a conveyer system comprising a first endless troughed belt 1 arranged longitudinally and centrally of the installation, and a tripper carriage 10 on which is mounted for transverse oscillation a frame 16 carrying a second transverse endless troughed belt 9 which is reversible whereby the material can be distributed evenly over the troughs which are arranged at both sides of the belt 1. The carriage is driven along rails 14 by the movement of the belt 1 which is caused to drive the carriage wheels 15 by a driving connection including a reversing gear 25 between the lower pulley 19 on the carriage and two of the carriage wheels 15 which run on the rails 14. Reversal of the drive is effected at the ends of the installation by limit abutments which engage control means on the carriage. The control means comprises a lever 28, Fig. 8, which is held in either of two positions by a spring-biased pair of toggle levers 54, 55 interconnected by a pin-and-slot connection 58. The lever 54 is engaged by each limit abutment 29. The motor 41 driving the belt 9 is reversed at the same time as the carriage through reversing switches (not shown) operated by abutments on the carriage. The frame 16 supporting belt 9 is oscillated by a screw 45, Fig. 6, driven by a reversible motor 31 on the carriage and engaging a nut 34 secured to the frame 16, motor 31 being reversed automatically by limit abutments 36, 39 co-operating with a switch 37 on the carriage. The period of movement of the carriage from one end to the other and back is very long, e.g. eight hours, so that the oscillatory movements of the frame 16 are substantially perpendicular to the belt 1, i.e. longitudinal of the troughs, material passing into the troughs on one side of the belt 1 during movement of the carriage one way and into those on the other side of the belt 1 during movement of the carriage the other way. A shoot 49 is provided at each end of frame 16 to guide the material passing into the troughs in the upper layer. When the upper layer of troughs is full the troughs are tipped simultaneously by a motor driving them through one revolution via worm gearing 75, 76 to tip the material into the next lower layer of troughs, longitudinally adjacent troughs rotating in opposite directions. Just previously the troughs in the next lower layer were tipped to deposit their contents into the troughs beneath them, through similar driving mechanism, and so on, so that the material moves step-by-step downwardly until reaching the lower layer of troughs which are tipped two at a time to deposit the composted material into transport vehicles 79.
Patent GB-1118705-A (GB)
Title: Pleated metal foil capsules
Inventor: RAILTON DENIS EASTHOPE
IPC: B65D41/62
Filed: 1965-06-08
Abstract: 1,118,705. Shaping metal foil caps. IDEAL CAPSULES Ltd. 8 June, 1966 [8 June, 1965], No. 24287/65. Heading B6J. [Also in Division B8] A punch 7 of a punch and die mechanism for shaping metal foil caps has a cylindrical leading end 10, the remainder of the punch tapering in conformity with the die surface 6. The pleated caps (C), Fig. 1 (not shown), formed by the mechanism are shaped so as to provide air spaces between them when they are nested together, to facilitate separation.
Patent GB-1174397-A (GB)
Title: Improvements in and relating to Catheter Devices.
Inventor: THOMSON CHARLES
IPC: A61M25/00
Filed: 1966-06-01
Abstract: 1,174,397. Catheter assemblies. NATIONAL RESEARCH DEVELOPMENT CORP. 11 Aug., 1967 [1 June, 1966], No. 24323/66. Heading A5R. A catheter assembly comprises a catheter tube 5, an annular connector device 1, and a protective tube 6 of flexible sheet material, one end of the protective tube being secured to the catheter tube and the other end being secured to the connector device. As shown, the protective tube 6 is secured to the catheter tube 5 and to the connector device 1 by rubber bands 7, 8 and the assembly is arranged such that by collapsing the protective tube 6 the catheter tube 5 can be inserted through the connector device into the patient. The connector device shown is suitable for fitment to a tracheostomy tube (10), Figures 2, 3 (not shown), and is formed with radial ducts 3 through which the patient can breath. The tracheostomy tube may include a T-junction connector allowing a respirator to be connected to the patient. Alternatively the connector device may be secured to a cap member (Figure 5, not shown) for the penis so that the catheter can be applied to the urethra. An alternative connector device, (Figure 4 not shown) is formed with longitudinal ducts (22) formed in the protective collar part 4, (21) and connecting the protective tube 6 to atmosphere. The parts of the assembly are of a plastics material such as polyethylene or polyvinylchloride and the assembly may be provided sterilised in a sealed bag 12.
Patent GB-1490624-A (GB)
Title: Tooth brush
Inventor: AXELSSON P A T
IPC: A46B9/04
Filed: 1975-06-06
Abstract: 1490624 Toothbrushes PATAXELSSON 6 June 1975 [13 June 1974] 24387/75 Heading A4K A toothbrush for cleaning between the teeth comprises a stock having a base-plate 13 and an attachment plate 15 and spaced, parallel bristles 19 extending outwardly from each side of the attachment plate, the length of the bristles decreasing as the distance from the base-plate increases. The bristles may be shorter at the middle of the length of the stock than those at the ends of the stem.  Alternatively, the length of the bristles may taper towards the tip of the brush, Fig. 5 (not shown). The stock may be frictionally held in a sleeve (23) Fig. 3 (not shown), rotatably mounted in the end of a handle (21).
Patent GB-721132-A (GB)
Title: Improvements in and relating to stators for dynamo-electric machines
IPC: H02K3/34
Filed: 1953-09-03
Abstract: 721,132. Insulation for dynamo-electric machines. GENERAL ELECTRIC CO. Sept. 3, 1953 [Sept. 3, 1952], No. 24408/53. Class 35. Stator slot insulators comprise interconnected segmental portions 5 of a strip 3 formed of laminated sheet insulation material which portions 5 are each preformed to the slot shape. When the windings 7 are arranged in the stator slots 2 over the slot insulator segments 4, the connecting portions 5 of the strip 3 are then cut, as at 8, Fig. 1 (not shown), and the resultant ends folded into the slots 2 over the windings 7 so as to act as a slot wedge. The insulation material may include sheets of the same or different synthetic plastic material, e.g. polyethylene glycol terythalate, polytetrafluorethylene.
Patent GB-1179825-A (GB)
Title: Improvements in or relating to glow-discharge apparatus for spectral and/or absorption analysis
IPC: G01N21/67
Filed: 1968-05-22
Abstract: 1,179,825. Discharge apparatus. R.S.V. PRAZISIONSMESSGERATE G.m.b.H. 22 May, 1968 [10 June, 1967], No. 24441/68. Heading H1D. Glow discharge apparatus for spectral and/or absorption analysis includes a cathode-body 3 apertured to provide a cathode space, an electrically conductive closure member 9, and an anode body 1 formed with a tubular portion 2 having one free end which extends into the cathode space, the arrangement being such that in operation with the anode and cathode bodies in a carrier gas atmosphere and with an electrical potential applied therebetween an intense glow discharge occurs which concentrates in the cathode space within the tubular anode portion 2 adjacent the closure member 9. An insulating disc 4 separating the anode 1 and cathode 3 is pressed against the cathode by a ring 5 provided with six holes to allow passage of the carrier gas from an inlet 16 to outlet 17. An optical window 7 is secured to the anode by a flange 8. The cathode 3 may be made of copper-beryllium alloy and is provided with water cooling ducts 11. Solids, liquids or gases may be analysed. Solids are supported on the member 9 or may form the member. Liquids are either supported on the member or impregnated therein. Gases are added to the carrier gas which may be argon at a pressure of 2-20 torr. The apparatus may be used as an ion source for mass spectroscopy.
Patent GB-817446-A (GB)
Title: Improvements in or relating to thermally resistant refractory articles, the pores ofwhich contain low temperature carbonized-bitumen, and chambers for non-oxidizing thermal conditions lined therewith
IPC: C04B41/50
Filed: 1956-08-09
Abstract: A porous fireclay brick in a partial vacuum in a closed vessel is completely covered by hot liquid bitumen, super atmospheric pressure is applied to force the bitumen below the brick surface, the pressure released, excess bitumen removed, and the brick heated at not above 650 DEG , preferably at 550 DEG C., to carbonise the bitumen in the pores of the brick.
Patent GB-695679-A (GB)
Title: Improvements in electrical plug and socket connectors
IPC: H01R13/74
Filed: 1951-10-22
Abstract: 695,679. Two-part couplings. DUNLOP, S. (Winchester Electronics, Inc.). Oct. 22, 1951, No. 24590/51. Class 38 (i). In a plug-and-socket connector having means for effecting engagement and disengagement of the parts thereof, the socket part comprises a shell 12 mounted in an aperture in a panel 10 by a nut 16 screwing thereon, and enclosing an insulating member 17 carrying socket contacts 18 and an internally-threaded earthing socket contact 19. Member 17 is held in engagement with a flange 21 in the shell by a nut 22. The plug part comprises a sleeve 37 and casing part 38 which are capable of relative angular adjustment to enable the direction in which the leads to pins 41 enter the casing part 38 to be varied. A flange 47, Fig. 4, on sleeve 37 has teeth 48 which co-operate with teeth 49 on a flange 51 of casing part 38, which teeth are maintained in engagement to retain the parts 37, 38 in their adjusted position, by a split spring ring 53 engageable in a groove 58 in part 38. The ring, which may serve as an earth terminal, also secures in position in sleeve 37, an insulating member 39 carrying the pins 41. The pin and socket contacts are retained in their respective insulating members by U-shaped spring clips 27. A plug 42 screwing into the casing part 38 has a central projection 62 in which is journalled an externally-threaded earthing pin 34 adapted to engage the socket contact 19 and, when rotated by a handle 74, to draw the plug and socket parts together or separate them. In the engaged position of the connector parts, the sleeve 37 fits within the shell 12, being correctly located therein by a co-operating rib and groove 46, 45. Sealing gaskets are interposed between the various body members of the connector and between the socket part and the panel.
Patent GB-1347909-A (GB)
Title: Manufacture of nitrites
IPC: C01B21/50
Filed: 1971-04-19
Abstract: 1347909 Manufacture of nitrites E I DU PONT DE NEMOURS & CO 19 April 1971 [1 April 1970] 24663/71 Heading C1A Nitrites of inorganic bases are prepared by cooling a gas mixture containing nitrogen oxides, O 2 , and water vapour from a temperature above its dew point to 300-500‹ C. and quenching the produced gas mixture in a cold aqueous solution of the base. In the illustrated embodiment the gas mixture obtained by oxidation of ammonia passes via line 1 to heat exchanger 2 where its temperature is reduced from about 900‹ C. to about 400‹ C. The cooled gas then enters the column 3, below the surface of the pool of quenching liquid 7, which is at Ca 50-60‹ C., being rapidly quenched and the gas then passes up column 3, past baffles dividing the column into zones 8, which is filled with foam and gas whilst being subjected to a countercurrent flow of quenching liquid. Quench liquor is withdrawn from the foot of column 3 to maintain the depth of the pool 7 and passes to hold-up tank 14 from which it is recycled to the head of the column via pump 17 and heat exchanger 16. A portion of the product liquor is removed at 21, and fresh quench liquor added at 11. The preferred conditions for the reaction are: temperature of quench liquor less than 120‹ C. especially 50‹ C.; temperature of admission of gas mixture about 300-500‹ C.; ratio NO 2 +N 2 O 4  : NO+NO 2 +N 2 O 4  approximately less than 40%; content of nitrogen oxides in gas about 10%; and concentration of quench liquor at least 1% especially about 10%.