baber/WOPTO huggingface dataset:
Patent GB-1485443-A (GB)
Title: Apparatus for drying a moving web
IPC: F26B13/20
Filed: 1974-10-25
Abstract: 1485443 Drying webs BELOIT CORP 25 Oct 1974 [14 Dec 1973] 46302/74 Heading F4G An apparatus for drying a moving web 16 comprises web support means having a surface for supporting the moving web, an impingement box 13 having an apertured plate 28 through which, in use, air flows on to the web, means for introducing pressurized air into the box 13, and exhaust means adjacent the box 12 for exhausting spent air. The apertures 29, 30, 32, 33 in the plate are of larger diameter at the edges of the plate adjacent the exhaust means then the apertures located centrally of the plate. As shown three different diameter sets of apertures are shown. In the embodiment described four impingement boxes are used and fed from a common manifold (Fig 3, not shown). The web support means comprises a conveyer or roller, the spacing of each aperture from the web sup. porting means is from one to four times its diameter.
Patent GB-990652-A (GB)
Title: Continuous process for the purification of boron nitride
IPC: C04B35/583
Filed: 1962-12-07
Abstract: Crude boron nitride is purified by passage at at least 1500 DEG  C in countercurrent to a stream of purging gas, which entrains the volatilizable impurities.  The crude material contains at least 70% BN, and a major part of the remainder is B2O3 and/or other volatile impurities, and is passed in the form of a cake through a heating zone.  The gas may be NH3, H2, N2, one or more noble gases, or amines, singly or in admixture. The process temperature is maintained constant at below 2000 DEG  C.  The crude BN may first be treated with dilute acid at 60 DEG  C., washed with cold water and filtered off.  The material is pressed into moist "sausages" of diameter 5-20 mm. and length 10-50 mm., and dried at 150 DEG  C. The sausages are then passed through a vertical tube-furnace which may be of the electrically - heated carbon - tube short - circuit Taunnan type. The graphite tube becomes coated with pure BN.  The reaction zone may be 15 cm. long.  The emergent sausages may be removed by a worn conveyer and thereafter passed through a cross-beater mill and sieve. If the gas used is NH3, fumes of BN may be recovered therefrom by a cyclone and filter bag and recycled. Specification 990,651 is referred to.
Patent GB-1022698-A (GB)
Title: Improvements in or relating to electrical insulators
Inventor: CHESTER PETER FRANCIS
IPC: H01B17/54
Filed: 1963-11-25
Abstract: 1,022,698. Insulators. CENTRAL ELECTRICITY GENERATING BOARD. Nov. 24, 1964 [Nov. 25, 1963], No. 46515/63. Heading H2C. An electric insulator is provided with a conductive path of a ferro-electric material which has a positive temperature coefficient at a temperature above the working temperature of the insulator. The materials may be ferro-electric per se or may'be doped with a rare earth to have a positive coefficient above the working temperature. In a further arrangement, they may have a perovskite structure and be doped with antimony, bismuth, hydrogen, niobium or tantalum. Fig. 2 shows an insulator consisting of a central rod of resin-bonded glass fibre or resin - impregnated wood. Cylindrical ceramic heating elements are disposed around this central rod and are spaced from each other by polyethylene sheds 31, connection between adjacent elements being made by metallic inserts 32. A bellows 33 maintains the pressure on the inserts. In the arrangement of Fig. 1 (not shown) the heating elements constitute a central rod.
Patent GB-1516910-A (GB)
Title: Radiographic film holders
IPC: B65D65/16
Filed: 1976-11-10
Abstract: 1516910 Radiographic film holder INTEX (RADIOGRAPHIC) Ltd 10 Nov 1976 46739/76 Heading B8K [Also in Division G2] A radiographic film holder is in the form of a flattened elongate tube of light-proof material, e.g. black plasticized PVC reinforced with a filamentary mesh, is open at one end and sealed across the other. The tube is foldable so that the initially open end may be rendered closed and light-tight, and has re-usable closure means to hold the folded part of the tube in its closed state. The material of the tube extends around the longitudinal edges of the tube in a continuous smooth curve without any fold, seam, or plait. The holder may include none, one, or more longitudinal heat-welded seams parallel to but spaced from its edges, and its edges may be offset at the open end to provide a closure flap. The inner edge of the open end may be shaped to assist insertion of a film into the envelope. The re-usable closure means may be pressstuds, tuck flaps, or, as shown a Velcro (R.T.M.) fastener.
Patent GB-1496836-A (GB)
Title: Shoe
IPC: A43B13/14
Filed: 1975-11-12
Abstract: 1496836 Shoe soles SIOUX SCHUHFABRIKEN PETER SAPPER 12 Nov 1975 [21 March 1975] 46764/75 Heading A3B A shoe 1 comprises an upper and a sole 3, the sole as viewed from above having a shape substantially that of the foot of a wearer, the sole having an upper 3"", and a lower surface and downwardly extending ridges in the heel 3', and front 3", portions on lines E1, E2 extending across the width of the shoe, the ridges being produced by a variation in the thickness of the sole, both ridges being at the same height, h1, h2 from the upper surface 3"" which surface is curveless in the longitudinal direction and has a longitudinal axis extending in a horizontal plane in the ankle 3"', and heel 3' portions of the sole, the first ridge being located near the ankle portion and the second ridge at the ball of the foot of the wearer. The angles α, # between the .sides of the projections are between 150‹ and 160‹ and the ridges act as rollers. The sole 3 is moulded of rubber or plastics and the shoe, of the moccasin type, is worked over a last with no arching between the heel and the front portion, the front and heel portions of the upper being moulded onto the sole.
Patent GB-1497449-A (GB)
Title: Production and use of quaternary phosphonium halides
IPC: C07F9/54
Filed: 1975-11-14
Abstract: 1497449 Process for preparing quaternary phosphonium halides HOECHST AG 14 Nov 1975 [5 Dec 1974 19 March 1975 17 May 1975] 47053/75 Heading C2P A process for preparing a quaternary phosphonium halide of formula [R<SP>1</SP>R<SP>2</SP>R<SP>3</SP>R<SP>4</SP>]X, where R<SP>1</SP>-R<SP>4</SP> independently are C 1-4  alkyl and X is hal, comprises passing phosphine or a substituted phosphine R<SP>1</SP>PH 2  or R<SP>1</SP>R<SP>2</SP>PH or R<SP>1</SP>R<SP>2</SP>R<SP>3</SP>P or a mixture of these and an alkyl halide R<SP>4</SP>X in molar ratio from 0À02 : 1 to 10 : 1, preferably from 0À05 : 1 to 2 : 1, at 100-500 C. at a pressure up to 10 atmospheres for 0À5 to 500 seconds over a catalyst and separating the resulting quaternary phosphonium halide from the reaction gas. Catalysts specified are gold, palladium or platinium and preferably active carbon. A further process for making a trialkylphosphine oxide of formula R<SP>1</SP>R<SP>2</SP>R<SP>3</SP>PO comprises heating the tetraalkylphosphonium halides prepared by the above process with an alkali metal hydroxide, followed by neutralization of the reaction mixture and separation of the trialkyl phosphine oxide. A further process for making a trialkylphosphine of formula R<SP>1</SP>R<SP>2</SP>R<SP>3</SP>P comprises heating the tetralkylphosphonium halide prepared by the above process to above 300 C., preferably 380-480 C., in contact with an inert gas and isolating the product in a known manner.
Patent GB-1201094-A (GB)
Title: Apparatus for dividing a vertically drawn glass ribbon
IPC: B65G49/06
Filed: 1967-10-17
Abstract: 1,201,094. Glass cutting apparatus. ASAHI GLASS CO. Ltd. 17 Oct., 1967 [18 Oct., 1966; 30 Nov., 1966], No. 47200/67. Heading ClM. Apparatus for dividing a pre-scored vertically drawn glass ribbon 1, Fig. 1, comprises a transport device arranged adjacent the path of travel of the vertically drawn ribbon, a piston cylinder device 10 rotatably depending from a carriage 6 of the transport device, and a suction chuck or chucks 11 operatively connected to the device 10. The transport device is reciprocatable orthogonally to the path of the ribbon by a worm 12 acting on carriage 6 so that in one terminal position the chucks 11 may engage a portion of the pre-scored ribbon. The chucks 11 are movable by the device 10 along the path of travel of the ribbon and apply a drawing force in the direction of travel of the ribbon as a piece of glass is divided therefrom. When the chucks contact the glass ribbon above a line scored by a cutter 2 a vacuum or compressed air piston 16, 17, Fig. 3, is actuated and this causes rollers to move down over a cam surface 14 which in turn through a roller 20 causes an arm 21 to rotate clockwise. This arm 21 actuates for each chuck a parallelogram linkage 23, 24, 24<SP>1</SP>, 26 connected to the chuck and allows the chuck to rise with the ribbon. The member 26 reacts on a non- rotatable arm 29 via a spring 27 and adjustable stop 28. After a predetermined degree of rotation a limit switch 48 is actuated which causes the carriage 6 to move. This movement severs the glass piece along the score line, and then by means of a cam track 50 the carriage is rotated through 90 or 180 degrees to place the glass piece on a loading device. In a modification glass severance may be effected by a piston- and-cylinder arrangement in the member 26 whilst the carriage 6 is stationary.
Patent GB-1081589-A (GB)
Title: Method and apparatus for accelerating charged particles
IPC: G21K1/00
Filed: 1965-11-08
Abstract: 1,081,589. Particle accelerators; lasers. BOEING CO. Nov. 8, 1965 [Nov. 12, 1964], No. 47273/65. Headings H1C and H1D. Charged particles are accelerated, e.g. to fall on an X-ray target 43, by the transfer of momentum from a laser beam 11 focused on and reflected from a high density accumulation of the particles, e.g. in the form of a plasma generated by the vaporization of a metal foil by the laser beam or, in the apparatus shown, in the form of a cloud of electrons 40 introduced into a cylindrical or spherical chamber 37 from a source 38. Electrons or a plasma may be accelerated by adjusting the rate of supply of laser power in relation to the density of the particles. The laser beam is focused by an axially adjustable lens 14 and is generated by a ruby rod laser 30 selectively pumped by a pair of flash lamps 31, 32 and Q-switched by a shutter 33. In the embodiment with a metal foil vaporized by the laser beam the foil is axially adjustable and the foil is supported on a wire mesh.
Patent GB-1436504-A (GB)
Title: Polymerisation and copolymerisation of dienes
IPC: C08F4/06
Filed: 1974-11-06
Abstract: 1436504 Polymerization of conjugated dienes BAYER AG 6 Nov 1974 [9 Nov 1973] 47944/74 Heading C3P [Also in Division C2] A process for the homo- or copolymerization of conjugated dienes comprises contacting at least one conjugated diene in an inert organic solvent with an alkali metal amide as catalyst, in the presence of a solvating agent for the catalyst. The diene is preferably butadiene or isoprene and may be copolymerized with an aromatic vinyl compound, e.g. styrene. The alkali metal amide may have the formula wherein R and R<SP>1</SP>, which may be the same or different, each represent C 1-20  alkyl, C 5-7  cycloalkyl or C 6-10  aryl; and Me is Li, Na or K, e.g. lithium diethylamide, lithium dipropylamide, lithium dibutylamide, lithium dicyclohexylamide, lithium diphenylamide, N-lithium-N- methyl anilide, N-lithium-N-ethyl anilide, sodium dipropylamide, potassium dibutylamide or N - sodium - N - methyl anilide. The solvating agent may be a dialkyl ether, a cyclic aliphatic ether or a diether, a trialkylamine, a tertiary aliphatic diamine, or a cyclic tertiary amine. The solvating agent is preferably present in an amount 0À01-30% by weight based on the monomer. The polymerization is carried out in the conventional organic solvents, e.g. n-hexane, cyclohexane, benzene, toluene or xylene at 0-60 C. The specific examples refer to the polymerization of: (a) butadiene in the presence of:- lithium dipropylamide and triethylamine (1,2); lithium dipropylamide and N,N,N<SP>1</SP>,N<SP>1</SP>- tetramethylethylenediamine (3, 11); a complex of potassium dipropylamide and tetrahydrofuran (4); lithium dicyclohexylamide and tetrahydrofuran (5); lithium dicyclohexylamide and tri-nbutylamine (6); lithium di-i-butylamide and N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethylethylenediamine (9); and lithium, di-i-butylamide and dimethoxyethane (10): (b) styrene and butadiene in the presence of sodium dipropylamide and tetrahydrofuran (7); and (c) isoprene in the presence of a complex of potassium dipropylamide and tetrahydrofuran (8). In Example 7 the styrene and butadiene may be polymerized together forming a statistic copolymer or the styrene is added only after the butadiene had polymerized forming a block copolymer. The polybutadienes prepared in the examples contain 21À5-60% 1,2 units, 12À2-36% cis-1,4 units and 18À5- 42-5% trans-1,4 units. The styrene-butadiene copolymer of Example 7 contains 16À4% styrene units, 39À4% 1,2-butadiene units and 44À2% trans-1,4-butadiene units, whilst the polyisoprene of Example 8 contains 45% 3.4- isoprene units.
Patent GB-1304465-A (GB)
IPC: C07J41/00
Filed: 1970-10-12
Abstract: 1304465 Triszinc bismethylene dihalide; methylene steroids G D SEARLE & CO 12 Oct 1970 [13 Oct 1969(2)] 48370/70 Addition to 1240698 Headings C2J and C2U A triszinc bismethylene dihalide methylenating reagent is prepared by contacting zinc, activated other than by formation of a Zn-Pb couple and usually by (a) heating with mineral acid (especially a hydrogen halide, optionally in combination with acetic acid) or (b) by formation of a zinc-copper couple or zinc amalgam, with a methylene halide (especially CH 2 Br 2 ) in tetrahydrofuran, dioxane or an alkylene glycol ether or a dialkoxyalkyl ether at elevated temperature. The reagent prepared as above is used to prepare a methylene steroid by contacting it with a reactive steroidal ketone, the keto group of which may be activated by an adjacent hydroxy, acyloxy or oximino function. The steroidal ketone may be one of those disclosed in the parent Specification and, in addition, may be 3#,17α-diacetoxy-5α-hydroxypregnane-6,20- dione which is reacted with triszinc bismethylene dibromide in tetrahydrofuran initially at -15‹ C. to yield 3#,17α-diacetoxy-5α-hydroxy- 6-methylenepregnan-20-one. Subsequent reactions of the methylene steroids obtained are as described in Specification 1,240,698.
Patent GB-1196174-A (GB)
Title: Work Layout or Drilling Machine
Inventor: BRAULT ANDRE RODOLPHE
IPC: B23Q17/22
Filed: 1967-10-27
Abstract: 1,196,174. Marking out work. OPTOMECHANISMS Inc. 27 Oct., 1967, No. 48885/67. Heading B4X. [Also in Division B3] A work lay out, or drilling machine, comprises a first carriage 3 movable on rails 1, 2 a second carriage 6 movable on rails 4, 5 mounted on the first carriage, a drill, stylus, or work locating head, 7 mounted on carriage 6, and encodertransmitter devices 10, 11 on the carriages for transmitting information regarding the position of the carriages to visual indicators, computers, tape recorders, or comparison checking means 10a, 11a. Each encoder-transmitter comprises a friction wheel 13, Fig. 2, which rides along a rail 2, and rotates a shaft 21, through gears 14, 18, connected by a torsion spring 19, and a pinion 20. The transmitter 10<SP>1</SP> comprises a conventional pulse generator. Each of the devices 10, 11, is urged, so as to engage the wheel 13 with the rail by a projection 30 movable against a spring 32 by a screw 26.
Patent GB-1272404-A (GB)
Title: Improvements in or relating to the radiography of welds
Inventor: ROONEY JOHN
IPC: G01N23/04
Filed: 1968-10-16
Abstract: 1,272,404. Radiographic examination. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 6 Oct., 1969 [16 Oct., 1968], No. 49174/68. Heading H5R. In the radiographic examination of a curved weld 3 between a tube 1 and a tube plate 2, a radiation source 9 is disposed on the line of the longitudinal axis of the tube and a radiation sensitive film is held in cylindrical form on the outer surface of a radiation-transparent sleeve 6 which is fitted over the tube, the film seating on the surface of the tube plate. As shown, the fillet weld 3 has curved outer and inner surfaces 4 and 5, the plastics sleeve 6 being correspondingly curved at its lower end to conform. The film is placed between two lead screens and fitted in a black P.V.C. envelope 8 which is held in place on the sleeve by a rubber band. The thulium 170 radiation source is withdrawn from a container 10 when required for use.
Patent GB-1445887-A (GB)
Title: Irrigation apparatus
Inventor: KIRCHER ROBERT J
IPC: A01G25/09
Filed: 1973-10-23
Abstract: 1445887 Irrigation apparatus STERLING SQUARE SPRINKLER CO Inc 23 Oct 1973 [24 Oct 1972 15 Nov 1972] 49324/73 Heading AID A pipe line irrigator, for watering non- circular areas, comprising a main arm 12, an extension arm 16 pivoted to the main arm 12, and means for controlling the rotation of the extension arm 16 relative to the main arm 12, as the main arm 12 and extension arm 16 rotate about the fixed base 10. The main arm 12 is mounted on self-propelled support towers 18A, B, .. N and movement of the driving motor for the outer tower 18N is initiated by the stress switch 29 being actuated by movement of the extension arm 16. The motors for the inner towers of the main arm 12 are energised in succession by stress switches between the sections 12N, .. 12B, 12A. The extension arm 16 is mounted on self-propelled support towers 22X, 22Y, which have steering wheels 24X, 24Y respectively. The wheels 24X, Y of the extension arm 16 are driven continuously by drive motors and the outer wheels 24Y are steered by a reversible electric motor controlled by the control means. The control means comprises an encoder 30 located at the base 10 for converting the angle α of the main arm 12 into a digital signal, and an encoder 31 located at the support tower 22Y for converting the angle made by the steered wheels 24Y with the perpendicular to the arm 16, into a digital signal. The two digital signals are compared at 32 and the output signal used to operate the steering motor until the output signal is reduced to zero. The steering motor may drive a rotatable disc capable of rotation in only one direction and producing by means of an eccentric link the necessary unidirectional movement of the steering wheels. A booster pump for the extension arm 12 is controlled by the position of the extension arm 12. The encoders may be shaped wheels read photoelectrically. In another embodiment, (Figs. 8A and 8B, not shown), the rotation of the outermost wheel of the main arm 12 rotates a first set of rotary switches connected to a second set of rotary switches which are rotated by the steering mechanism, to control the operation of the steering motor.
Patent GB-1390654-A (GB)
Title: Materials for flavours and perfumes and process therefor
IPC: A23L27/20
Filed: 1972-10-26
Abstract: 1390654 Flavourings P F W BEHEER BV 24 Oct 1973 [26 Oct 1972] 49368/72 Heading A2B [Also in Division C2] Foodstuffs contain as a flavorant 1-crotonoyl-2, 2, 6-trimethylcyclohexane, preferably the trans, E-isomer.
Patent GB-1527089-A (GB)
Title: Process of repairing rebuilding or joining broken or damaged refractories
IPC: C04B35/66
Filed: 1975-12-02
Abstract: 1527089 Repairing damaged refractories G SAHA 2 Dec 1975 49557/75 Heading C1J Broken or damaged refractories are repaired (i) by providing a mix of identical chemical composition to that of the damaged refractory, the grain sizing of the mix being related to the original grain composition of the refractory; (ii) applying the mix to the maximum surface area possible of the damaged refractory and joining broken portions of refractories by bringing them together with one or more layer(s) of the mix in between and (iii) drying and firing the joined refractories at a temperature such that ceramic bond formation and optimum grain growth are achieved.
Patent GB-1530680-A (GB)
Title: Methods for electrolytically generating oxygen
IPC: C25B9/19
Filed: 1976-11-30
Abstract: 1530680 Platinum group metal electrode; electrolytically generating oxygen GENERAL ELECTRIC CO 30 Nov 1976 [4 Dec 1975]  49787/76 Headings C7A and B Oxygen and hydrogen are electrolytically generated from water or gaseous stream containing oxygen in a cell provided with a ion exchange membrane between and in contact with the electrodes and an anode of Pt-Ru alloy comprising reduced oxides of Pt and Ru containing 5 to 60% Ru.
Patent GB-1205600-A (GB)
Title: Improvements in articles of clothing
Inventor: BERKOFF JOHN
IPC: A41B9/08
Filed: 1967-11-03
Abstract: 1,205,600. Garments. DORCHESTER LINGERIE Ltd. 23 Sept., 1968 [3 Nov., 1967], No. 49985/67. Heading A3V. An article of clothing comprises two separable garments: an upper garment 10, which is stretchable circumferentially and has a band 16 or circumferentially spaced areas of material which permits the stretch and has a pile surface; a lower garment 17, which has a band 19 or circumferentially spaced areas of pile filaments for engagement in the pile surface of the first material thereby forming a separable connection. The upper garment 10 consists of a brassiere and girdle with reinforced breast cups 14 and elastic shoulder straps 15. The garment 10 is stretchable circumferentially and longitudinally and is knitted from stretch yarn comprised of treated nylon fibres. Elastic filaments may provide an alternative stretching means. The stretch capacity of the band 16 may be imported in the same manner. The lower garment 17 is one of a number of interchangeable slips of different colours, shapes, or materials, to which a band 19 is sewn, which band is made according to Specifications 721,338 or 987,484 consisting of stiff protruding pile filaments with hooked ends made of a thermoplastic material. The tab 21 attached to the slip, has a pile surface presented outwardly to engage with the band 19. The component garments 10, 17 are readily separable by pulling the two bands 16, 19 apart. The bands 16, 19 may be replaced by spaced pieces of material attached in a circumferentially-extending series and which are not necessarily stretchable.
Patent GB-1365697-A (GB)
Title: Repair of lifting lugs of ingot moulds
IPC: B22D7/06
Filed: 1971-10-29
Abstract: 1365697 Welding by fusion; repairing ingot moulds; jointing HILTI AG 12 Sept 1972 [29 Oct 1971] 50305/71 Headings B3R B3A and B3V A broken lug 16 of an ingot mould 10 is repaired by burning bulb holes 17 in a remaining part of the broken lug from an upper outwardly facing surface thereof, securing a plate 18 to said remaining part by introducing weld metal 20 into said bulb holes and into registering holes 19 in the plate, and introducing weld metal 22 into a cavity 21 defined between the plate and a fractured surface of the broken lug. The weld metal 20 forms anchors in the bulb holes 17 and fuses with the plate. The plate holes 19 may be frusto-conical. Anchorages for the cavity weld metal 22 may be provided by forming bulb holes in the fractured surface of the lug and apertures or recesses in the plate 18. Reference has been directed by the Comptroller to Specification 1,150,014.