baber/WOPTO huggingface dataset:
Patent GB-206484-A (GB)
Title: Improved process of purifying hydrocarbons
IPC: C07C7/00
Filed: 1923-10-10
Abstract: In the purification of hydrocarbons, such as naphthalene, fluorene, acenaphthene &c., by treatment with sulphuric acid, the subsequent crystallization of the hydrocarbon is carried out in presence of alkali, preferably in excess of that quantity necessary to neutralize the residual acidity of the hydrocarbon. The molten hydrocarbon may be subjected to one or more washings prior to crystallization and the latter is effected by cooling, preferably by addition of cold water. In an example, crude naphthalene is treated with sulphuric acid, the spent acid drawn off, the treatment being repeated if necessary.  The material is then washed with hot water and the molten naphthalene is run into a crystallizing tank containing alkali, such as caustic soda.  The mixture is agitated and cooled by addition of cold water. The crystals are finally washed with water and re-distilled.
Patent GB-534487-A (GB)
Title: Improvements in or relating to methods of and arrangements for obtaining a uniform temperature of the material being ground in roller mills
IPC: B02C4/44
Filed: 1939-09-07
Abstract: 534,487. Roller mills. BUHLER BROS. Sept. 7, 1939, No. 25306. Convention date, Sept. 7, 1938. [Class 59] [Also in Group XXXV] A method of maintaining a uniform temperature in the material ground by a roller mill consists in regulating the temperature of the grinding rollers automatically by changes in the temperature of the material discharged from the rollers. For this purpose, a thermostat 2 is arranged in the gap between the rollers 1 on the delivery side so that it is swept by, and takes the temperature of, the discharged material. The thermostat is of known construction, and it may be arranged to operate a double-pole switch 3 connected to solenoids which actuate two valves 4, 5. These valves control conduits 6, 7 through which cold water and hot water, respectively, pass and circulate through the rollers. The adjustment of the water supply is so arranged that operation of the switch 3 by the thermostat effects the required regulation of the temperature of the rollers. In some cases, the warm water conduit 7 may be dispensed with, a single pole switch being used instead of the double pole switch. The thermostat may also operate the valves 4, 5 through mechanical means.
Patent GB-1088954-A (GB)
Title: Improvements to power take-off couplings
Inventor: RESTALL GEORGE
IPC: A01B69/06
Filed: 1963-07-10
Abstract: 1,088,954. Tractor power lift mechanism. RUBERY, OWEN & CO. Ltd. July 2, 1964 [July 10, 1963], No. 25353/63. Heading A1P. [Also in Divisions B7 and F2] A power coupling for transmitting power from a tractor power take-off to an implement hitched to the tractor comprises a shaft assemby 20 connected by a universal joint 19 to the power take-off shaft 18 and resiliently suspended from a hitch frame 14 on the tractor power lift linkage 11, 12, 13 by springs 21 arranged such that the shaft assembly 20 can be moved by the linkage 11, 12, 13 into alignment with a complementary shaft assembly 28 on. the implement, whereupon the shaft assemblies 20, 28 can be slidably engaged and are thereafter permitted substantially unrestricted movement relative to the power take-off shaft 18. The shaft assembly 28. is connected by a universal joint 27 to a drive shaft 26. on the implement and suspended by springs 29 from a hitching frame 25 on the implement tow bar 24. The tractor hitch frame 14 carries a hook 15 for engagement with the hitching frame 25, and means (not shown) are provided for securing together the lower ends of the frames 14, 25. In another embodiment (Fig. 2, not shown) no hitching frames are provided, the shaft assembly (20) being suspended from arms (31) carried by the power lift links (12, 13) and the shaft assembly (28) being suspended from an arm (33) projecting from the implement. The shaft assembly 20 (Fig. 3) comprises a tubular "lemon" section shaft 40 journalled in a sleeve 43 including guards 47 for the joint 19 and for a conical guide 42 facilitating engagement with the shaft assembly 28 which includes a tubular shaft 59 of complementary "lemon" section terminating in a conical spigot 49. A pin 54 in the spigot co-operates with cam surfaces 53 on the shaft 40 to ensure correct orientation of the shaft sections. In modified coupling arrangements the shaft assembly 28 has a square shaft (Fig. 11, not shown) for engagement with a corresponding bore in the shaft of the assembly 20, and the sleeve and shaft of the assembly 20 are telescopic to accommodate hitching means of different length between tractor and implement. The shaft assemblies may be arranged to disengage automatically when the implement is raised or turns by more than a predetermined amount relative to the tractor, or upon automatic "breaking back" of a mower cutter bar on the implement.
Patent GB-742688-A (GB)
Title: Improvements in and relating to men's trousers, women's skirts and like garments which are supported by constricting the waistband
Inventor: ELSON FRANK WILLIAM
IPC: A41F9/02
Filed: 1953-09-15
Abstract: 742,688. Supporting trousers &c. REED, Ltd., A. Feb. 19, 1954 [Sept. 15, 1953], No. 25443/53. Class 141. Means for supporting trousers and skirts comprise elastic bands a anchored near the centre of the back of the garment and provided at their front ends with non-elastic portions b which are looped around rollers d carried by metal loops c and are engaged with buttons &c. i on tabs h which are secured to the front ends of tunnels e housing the bands a.
Patent GB-158954-A (GB)
Title: Improvements in core stampings for dynamo electric machine armatures
IPC: H02K1/06
Filed: 1919-10-18
Abstract: 158,954. Tomkins, A. W. Oct. 18, 1919. Cores.-Stampings for the armatures of dynamoelectric machines are made with a series of internally or externally located entrance slots or gaps 4, 4a for admission of the coils and with elongated slots 3, 3a of arcuate form extending from the gaps 4, 4a in one direction circularly about the centre of the stampings for the location of the coils. The entrance slots may be shaped so as to retain wedges inserted therein, and the stampings may be provided with keyways for assembling them in position.
Patent GB-1052166-A (GB)
Title: Coating process for uranium rods
Inventor: DARRAS, RAYMOND
IPC: C23C10/28
Filed: 1965-06-17
Abstract: 1,052,166. Coating with metals. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 17, 1965 [June 22, 1964], No.25613/65. Heading C7F. A uranium rod is coated with Cu, Cr, Si or Zr, whilst rotating, by vapour deposition using a molybdenum crucible or a helical tungsten resistance heater. A second coating of another metal of the said group may be applied by vapour deposition or diffusion from powder or thin foil wound round the rod and heated. Before coating the rod is machined, degreased in acetone, anodically pickled in 10% HNO 3  and rinsed in dilute acid and then in pure alcohol.
Patent GB-727871-A (GB)
Title: Electrode mounting structure for radio-frequency seaming machines
IPC: B29C65/04
Filed: 1953-09-16
Abstract: 727,871. Seaming non-metallic sheet material. SINGER MANUFACTURING CO. Sept. 16, 1953 [Oct. 16, 1952], No. 25625/53. Class 42 (1). Also in Group XI] In a radio-frequency seaming machine is provided a work-supporting bed, through an aperture in which extends a peripheral portion of a driven feed wheel, a lower electrode assembly comprising separate spaced blocks of insulating material secured to said bed on opposite sides of said feed wheel and an electrode spanning the space between and having end portions removably secured to said blocks. As shown, a feed wheel 12 fixed on a shaft 13 is positioned in an aperture in a machine bed 10. The wheel 12 comprises a metallic hub 18, a wheel 19 of insulating material and a rim 20 of rubber bonded thereto. Horizontal shoulder portions 23 and 24 of the bed have secured thereto by screws 25, blocks 26 and 27 of insulating material which support in slots 28 and 29 an electrode 30. The electrode 30 is shaped to straddle the shaft 13 and has material removed therefrom to form apertures 31 and 32 to provide a girder-type structure giving it a substantial positional stability and reduced mutual capacitance with the feed wheel 12. The electrode 30 is also formed with a crown portion 33 which projects above the working surface of the bed 10 to co-operate with a regular reciprocatory upper electrode 34 in applying pressure and a radio-frequency field to the work 46 held between and fed past the electrodes. A spring-pressed roller 37 cooperates with the feed wheel 12 in the usual manner to feed the material with a progressive intermittent motion. Other embodiments show two pairs of electrodes and/or a double feed roller arrangement. Specification 603,412 is referred to.
Patent GB-671997-A (GB)
Title: Improvements in or relating to liquid purifying filters
IPC: B01D24/22
Filed: 1950-10-20
Abstract: 671,997. Filters. HULSBERGEN, C. W. Oct. 20,1950 [Oct. 25, 1949], No. 25659/50. Class. 46 [Also in Groups X and XXVIII] A nozzle-floor structure for a sand filter comprises a floor proper 2, Fig. 1, 'a nozzle-floor 1, internally screw-threaded sleeves 13, Fig. 2, vertically embedded therein, a tube 20 for filtrate, wash-water and air associated with each sleeve and extending into it from below, elastic clamping means such as a rubber ring 22 frictionally and circumferentially engaging the portion of the tube 20 within the sleeve 13, and a nozzle 25 screwing into the sleeve 13 from above which engages the upper end of the tube 20 to adjust it axially relatively to the floor. Each sleeve 13, Fig. 2, preferably comprises an internally-threaded upper portion 14, lower tapering wall 17 and ribs 16<SP>1</SP> for encasing in the material, e.g. concrete, of the nozzle-floor during construction and to prevent rotation therein. A flange 18 is also provided to prevent the ring 22 from falling out. The tube 20 which is preferably of glass but may be of any non-corrosive material may be cut to the required length from stock and is provided with a circular opening 21 at a predetermined distance from the lower end. The nozzle 25 has a screw-threaded portion 15 with a tapered recess 23 at its lower end for centering the tube 20, a cone 28 for ensuring even distribution of air and water and radial slots 27 of such a width, e.g. 0.7 mm., that normal filter material of from 0.8 to 1.5 mm. grain size may be used without layers of coarser material such as gravel. The clamping ring 22 is preferably of circular cross-section in the free condition. The tubes 20 are adjusted by screwing the nozzles 25 in or out so that all the holes 21 lie in one and the same horizontal plane. The nozzle-floor itself preferably comprises slabs 1, e.g. of concrete, Fig. 1, abutting in a horizontal plane and supported at their adjoining corners by tubular supports 3. Pairs of anchoring rods 10, 11, are arranged crosswire in recesses 7, Fig. 2, formed in the side faces of the slabs 1, a hairpin-shaped connecting rod 12 is suspended from the crossing point of each pair of connecting rods and enters the respective tubular support 3, and a binding material, e.g. cement mortar is introduced through slots 8, Fig. 2, formed between adjacent slabs to fill the tubular supports 3, recesses 7 and slots 8. Pairs of rods 9 may be enclosed in the floor-proper 2 and project into the supports 3 in over-lapping relationship with the shanks of the hairpin rods 12.
Patent GB-461545-A (GB)
Title: Improvements in or relating to automatic steering gear
IPC: G05D1/02
Filed: 1936-09-22
Abstract: 461,545. Automatic control systems. GENERAL ELECTRIC CO., Ltd. (Chance, B.) Sept. 22, 1936, No. 25743. [Class 38 (iv)] [Also in Group XXXIII] Body in motion.-Automatic steering-gear for ships and like craft of the kind employing a beam of light and sensitive photo-electric cells is arranged so that a time lag is introduced between the starting of the rudder motor and the operation of the follow-up mechanism. The beam of light 1 acting through a lens is directed vertically on to a prism 3 carried by table 2, and the light passes to a reflector 5 carried by a framework 4 and thence to cells 6, 7 or 8. The reflector 5 has an arm 21 which is moved by levers 20, 22 and cam 19 on a shaft geared to a pinion 23 coupled to lines 12 secured to the tiller. In operation, on deviation of the craft, the beam of light is reflected on to one of the cells 6 or 8, and an electric circuit is completed whereby the rudder motor 10 is started and a band brake 12a on the drum of the cable 12 is pulled off. In order to adjust the degree of time lag, the arm 4 may be adjustable in length. At the same time, the cam 19 of variable contour is positioned so as to affect the follow-up lever 20 proportionately. For the purpose of setting a new course, the frame 4 is given an annular adjustment during which time the gears 23 are out of mesh, but when adjusted, the gears are returned to their meshed position. In a modification, the cells 6, 8 are carried by a frame 25 on the main frame and this is adjustable through toggle mechanism 27, 28, 29 so as to alter the distance of the cells 6, 8 from the central cell 7. In order to reduce the length of the apparatus required, mirrors or prisms may be interposed suitably in the path of the beam. In another arrangement, the light source is set in front of a spherical mirror 40, from which the light is directed upon a conical reflector 41 and thence radially outward, the reflector carrier having around part of its periphery and upstanding shield 43. Outside the frame are placed the cells 44, 45 which are affected by the light beams when on deviation of the ship's path the shield 43 is moved away from the cell. In this case also a new course may be set by altering the cell carrier 46 through worm gears 47. In one arrangement, the rudder lines are connected up to a rack-and-pinion gear 30. which moves the lamp holder 28 transversely and so acting as a follow-up mechanism readjusts the beam in relation to the cells 1, 2, 3. In another method, the filament of the lamp is itself shifted by electromagnets acted upon by mechanism brought into play by the follow - up gear. As a further alternative for providing lag, the rudder lines 19, 20 may be secured to the rudder head through connections having a free movement limited by stops 22.
Patent GB-1451959-A (GB)
Title: Pyridoquinolines
IPC: C07D471/04
Filed: 1973-05-30
Abstract: 1451959 Pharmaceutical compositions containing Novel Pyridoquinolines IMPERIAL CHEMICAL INDUSTRIES Ltd 9 April 1974 [30 May 1973] 25760/73 Heading A5B [Also in Division C2] Pharmaceutical compositions comprising compounds of the formula VI or VII wherein R<SP>1</SP> is hydrogen, R<SP>2</SP> is hydroxy or C 1-3  alkoxy and R<SP>3</SP> is a C 1-3  alkyl-phenyl-C 1-2 -alkyl, methoxypbenyl-C 1-2  alkyl, methylene dioxyphenyl-C 1-2  alkyl, diethylaminocarboxyl-C 1-2  alkoxy, C 1-2  alkoxy-C 1-2  alkoxy, phenoxy-C 1-2  alkoxy, tolyloxy-C 1-3  alkoxy, tolyl, tolyloxy, pmethoxyphenyl, dimethylphenoxy, methoxyphenoxy, dimethoxyphenoxy, chlorophenoxy, dichloraphenoxy, bromophenoxy, dibromophenoxy, C 1-3 -alkoxycarbonylphenoxy, aminophenoxy, N-(C 1-2  alkyl)-methoxyamilino or methylpiperidin-1-yl or wherein R<SP>1</SP> is methyl, R<SP>2</SP> is as defined above in the formula VI, R<SP>3</SP> is a #-phenoxyethoxy radical or a non-toxic pharmaceutically acceptable salt thereof with the usual excipients or diluents may be used to inhibit passive cutaneous anaphylaxis when administered parenterally or by inhalation. The composition may optionally contain a known #-adrenergic stimulant, broncho-dilatory active prestoglandin or phosphodiesterase inhibitor.
Patent GB-170279-A (GB)
Title: Improvements in or relating to tip waggons and the like
IPC: B60P1/12
Filed: 1921-09-29
Abstract: 170,279. Reich, W. Oct. 14, 1920, [Convention date]. Tipping-wagons fitted with oscillating rack winches with the racks attached to the body and the casings to the frame, have the racks attached to the body by fulcrum members so shaped as to lie coaxially with the rack casings when the body is in its normal position so that the racks may be turned into an horizontal position. The racks 1 are guided in pivoted casings 3 and are attached to the body by heads 4. The racks are actuated by crank-operated gearing 7, and when the position of rest is reached, further movement of the crank turns the racks into the horizontal position, where they may be held by rotary locking members 8.
Patent GB-321005-A (GB)
Title: Improvements relating to covers for hay and like stacks
IPC: A01F25/10
Filed: 1928-09-08
Abstract: 321005 W B MARTIN 8 Sept 1928 Index E1A 632 Crops, preserving. - A stack cover comprises a conical cage structure formed by coaxial vertically spaced rings 1, 2, and 3, inter-connected by inclined bars 4 joggled at the points 5 of interconnection with the rings. The upper ends of the bars 4 are secured to a conical metallic sheet 6. A thatch or like covering 7 is secured to the exterior of the frame. A rain deflector 10 secured to a spike 8 is fitted at the top of the stack. The cover is held against displacement by weights secured to cords 14 attached by hooks to the lower ends of the bar 4. A metallic ring 15 constructed in halves hingedly connected together lies on the lower part of the sloping surface of the stack and serves as an anchorage for the top ends of thatching dolls forming a waterproof covering for the side surface of the stack.
Patent GB-171001-A (GB)
Title: Improved stuffing box and gland
IPC: F16J15/18
Filed: 1920-09-08
Abstract: 171.001. Bovingdon, F. T. Sept. 8, 1920. Caps.-A stuffing-box movable on a fixed gland is divided axially into sections which are connected together by bolts, hinge joints, pins, screws, bands or clips &c. The box is in halves connected by hinge joints d, and is drawn on to the gland by bolts f. Fig. 8 shows a box screwing on to a gland e. The box is formed in halves b, securrd together by a screw cap h.
Patent GB-1471944-A (GB)
Title: Heat exchangers
IPC: F28F1/30
Filed: 1974-06-12
Abstract: 1471944 Finned-tube heat exchangers I M KALNIN V N KROTKOV T M SUTYRINA A N SERGEEVA and O A SERGEEV 12 June 1974 [14 June 1973 28 Feb 1974 14 May 1974] 25982/74 Heading F4S In a heat exchanger comprising parallel fins 2 each with one or more apertures 14 therein for tubes 1, wherein the external fluid flows transversely over the tubes, each fin has on either one or both sides of the tube a corrugated area in which the corrugations extend in the direction (arrowed) of fluid flow across the fin and have transverse slits therein, the fin material between adjacent slits being displaced to provide passages constituting turbulating means for the fluid, and adjacent fins adjoining one another by their respective corrugations. In Figs. 1 and 2 are shown in each fin four corrugations 3 having side walls 4 which extend perpendicularly to the plane of the fin and are unbroken. The corrugation crests 5 are ridged and have slits 6 therein dividing the crests into portions 7 adjacent ones of which are offset relatively to form the turbulating passages 8. Dimension t is the fin spacing. In Figs. 5 and 6 the corrugation side walls are undulating and unbroken in their length, the corrugation crests having slits 11 therein so providing crest portions 10 adjacent ones of which are offset from one another to form fluidturbulating passages 13. In the valleys of the corrugations and also in a plane fin area around the tube aperture 14 are turbulators 16, 17 formed by slitting and bending fin material (see Fig. 6). Fig. 8 shows an arrangement in which the corrugation crests 19 are unbroken and the corrugation side walls are slit to form side wall portions 21 adjacent ones of which are relatively offset and have a curved shape providing turbulating passages 22. Intermediate fins (e.g. 36, Figs. 17-19, 20 and 21) generally plane but with turbulating elements similar to the elements 16 therein, may be provided between the corrugated fins 2. In another fin arrangement described (Figs. 20, 21) plane fin portions lying between the corrugated zones of the fin, have open ended slots (42) therein and the slot edges are bent out of the plane of the fin to form flanges (43) of the same height as the corrugations 3.
Patent GB-1532690-A (GB)
Title: Bearing material
IPC: B05D5/08
Filed: 1977-08-22
Abstract: 1532690 Polyarylene sulphide coated bearing material GLACIER METAL CO Ltd 22 Aug 1977 [23 June 1976] 26011/76 Heading B2E [Also in Division F2] Bearing material is produced by applying powdered polyarylene sulphide to a substrate, e.g. of abraded aluminium alloy or copper plated steel strip having a sintered bronze layer on the side to which the polyarylene sulphide is applied, melting the polyarylene sulphide by induction heating of the substrate and quenching the coated substrate to ambient temperature. The coated substrate may be passed through the heating station at a rate between 1 and 10 feet per minute.
Patent GB-859025-A (GB)
Title: Improvements in or relating to electrical devices having hermetically sealed envelopes
Inventor: BOSWELL DAVID
IPC: H01B3/08
Filed: 1958-08-13
Abstract: 859,025. Semi-conductor rectifiers; mounting terminals; glass-to-metal seals. GENERAL ELECTRIC CO. Ltd. June 26, 1959 [Aug. 13, 1958], No. 26082/58. Classes 36, 37 and 38(1) A junction rectifier has a hermetically sealed envelope which incorporates a lead-in arrangement consisting of a metal tube sealed through an insulating member forming part of the envelope, an external lead wire extending into the tube from the outer end of the tube and an internal lead wire extending into the tube from the inner end of the tube, the external wire being hermetically sealed in the tube in good electrical contact therewith, and the tube being squeezed on to the internal wire so as to provide a good electrical connection between them. As shown, a wafer 1 of N-type silicon has an aluminium wire 3 alloyed to one face to form a rectifying junction and a disc 2 of gold-antimony alloy alloyed to the opposite face to form an ohmic contact, the latter being soldered by means of a disc 4 of tin to a copper disc 5 which forms part of the envelope of the device and which is brazed to a threaded phosphor-bronze mounting stud 6. The envelope also comprises a copper tube 8 comprising an external flange 9 at one end and an internal flange 10 at the other end, a bead 11 of glass, preferably of a composition in accordance with Specification 817,636, (e.g. 42% silica, 20 % titanium dioxide, 17 % sodium oxide, 14 % potassium oxide, 4 % strontium oxide, 3 % barium oxide by weight), being sealed into the said other end of the tube, and a second copper tube 12 being centrally sealed through the glass head 11. A copper lead wire 14 is sealed within the outer end of tube 12 by squeezing the latter and then by soldering. The tube 8 is placed over the previously formed rectifying element so that the aluminium wire 3 enters the inner end of tube 12, and the flange 9 is cold-welded to disc 5 in a dry gas atmosphere 1. Finally, the tube 12 is squeezed on to the wire 3 at 13; Fig. 2 (not shown) illustrates one manner of doing this.