baber/WOPTO huggingface dataset:
Patent GB-1265738-A (GB)
IPC: B01D3/32
Filed: 1969-11-25
Abstract: 1,265,738. Refining polymers. GOODYEAR TIRE & RUBBER CO. 25 Nov., 1969 [18 Dec., 1968], No. 57528/69. Heading C3P. A method of refining resins containing low molecular weight polymers comprises (a) obtaining the resin composition in a liquid phase in a resin refining system comprising a separating zone and a steam reboiling zone, where the separating zone has an upper vapour portion and a lower liquid portion containing an enriched liquid resin composition, and in the refining system (b) discharging the liquid composition in a liquid enriched resin state from the liquid portion of the separating zone into the steam reboiling zone, (c) passing steam to the lower portion of the steam reboiling zone and into said enriched liquid resin composition therein at a sufficient rate to entrain at least a portion of the liquid resin and lower molecular weight polymers and to recycle at least a portion of the entrained liquid resin and lower molecular weight polymers from the upper portion of the steam reboiling zone to the vapour portion of the separating zone, (d) withdrawing steam and at least a part of the lower molecular weight polymers from the vapour portion of the separating zone to enrich the resin composition and (e) maintaining sufficient liquid enriched resin in the separating zone to provide a positive pressure differential between the separating zone and the steam reboiling zone. Steam is introduced at a sufficient rate to entrain at least a part of the resin and where at least a part of the low molecular weight polymer is withdrawn with the steam from the refining system. The system may comprise a separating zone 1 having upper vapour 6 and lower liquid 7 portions, and a steam reboiling zone 2, liquid enriched resin being discharged from the separating zone into the steam reboiling zone into which steam 3 is passed at a sufficient rate to entrain a portion of the resin which is recycled to the separating zone, steam and low molecular weight polymers being withdrawn from the vapour portion of the separating zone. The refining may be effected under reduced pressure and the discharge from the separating zone to the reboiling zone by gravity. The resin may be a terpene resin or Friedel-Crafts catalysed monoolefin/diolefin copolymer, which may be treated as a melt or in solution in volatile organic solvents. Examples describe the treatment of resins prepared by polymerizing a mixture comprising 2-pentene, 2-methyl-2-butene, isoprene, piperylene, 2,3- dimethyl-1-butene and other C 5-6  unsaturated hydrocarbons with aluminium chloride.
Patent GB-1295614-A (GB)
IPC: C07C/
Filed: 1971-04-19
Abstract: 1295614 Aryl chloroformates FRANCE ARMED FORCES MINISTER OF 19 April 1971 [2 March 1970] 22772/71 Heading C2C The invention comprises a crystalline chloroformate of the formula where two of R 1 , R 2  and R 3  are nitro groups and the third is H, halogen, or alkyl, and R 4  and R 5  are H or alkyl. Compounds of Formula I are prepared by phosgenating under anhydrous conditions at a temperature of at least 10‹ C. an anhydrous alkali metal dinitrophenate of the formula where M is an alkali metal.
Patent GB-1301491-A (GB)
IPC: E21B33/047
Filed: 1970-03-25
Abstract: 1301491 Underwater wells ROCKWELL MFG CO 25 March 1970 [23 April 1969] 14386/70 Heading E1F An underwater well has a casing into which is set a hanger below the mudline, to enable control valves also to be set below the mudline to protect them e.g. from storms and sinking ships. The hanger 55 (Fig. 3B) has slips 57 extended to grip the casing by a setting cone 58 raised by fluid pressure applied to space 61; the setting cone is restrained by shear pins 65 until they are sheared when the fluid pressure is applied. Tubing strings 21, 22 are screwed into the hanger and are cemented in, and for this purpose, the hanger 55 has a cement returns passage 76. The hanger is inserted on a running tool (80, Fig. 3A not shown) having a sleeve (90) which surrounds the tool body (86) and holds in place a latch (84) connecting the tool to the hanger 55. The tool is screwed onto the end of handling strings which have flanges (105) so that when they are unscrewed from the tool body, they raise the sleeve (90) to release the latch, allowing the tool body, which is retained in the sleeve by a lost-motion device to be removed. The well is completed (Fig. 8) by means of a connector 150 also carrying a sleeve 160 which locks latches 182 holding the connector to the hanger 50. The sleeve is connected to pistons 200 which are raised when the connector is being run down the well to allow the latches to engage, and are lowered to lock the latches by pressure applied to both sides of the pistons (which are of unequal area) through lines 218, 219, from a riser 300. The risers 300, 301 contain valves 251, 252, and the riser 300 contains a nipple 304 adapted to receive a plug. If the valve 251 is open, a solid plug run into the nipple 304 allows pressure to be applied to the bottom only of the pistons 200 to disconnect the connector and risers from the hanger. If the valve 251 is closed, a plug is run down on tubing (Fig. 11, not shown) to allow the space above the pistons 200 to be vented while pressure is applied below the pistons. The wellhead may be located on a submerged platform (Fig. 1, not shown). For example, if the seabed is 1200 feet deep, the platform may be at 600 feet.
Patent GB-1307223-A (GB)
Title: Pesticidal compositions
IPC: A01N57/10
Filed: 1969-06-16
Abstract: 1307223 Dioximes IMPERIAL CHEMICAL INDUSTRIES Ltd 22 May 1970 [16 June 1969] 30290/69 Heading C2C [Also in Division A5]  The invention comprises compounds of the general Formula I wherein X is a halogen atom, a cyano, anilino or pyridinium group; Y is a halogen atom, a cyano, amino, dithiocarbamate, thiourea, pyridinium or mercapto group and R 1  and R 2  are hydrogen atoms or ester groups, provided that X and Y are not both chlorine, anilino or pyridinium when R 1  and R 2  are both hydrogen. Dichloroglyoxime bis-methyl carbamate of Formula III may be prepared by reaction of dichloroglyoxime with two equivalents of methyl isocyanate in ethereal solution in the presence of 2-3 drops of N-ethyl morpholine at reflux temperature for 1¢ hours. After allowing the mixture to stand for several hours, the crystalline product is recrystallized from light petroleum. 1,2- Dichloroglyoxime mono - (3,4 - dichlorophenyl carbamate) of Formula IV is prepared by reaction of dichloroglyoxime with 3,4 - dichlorophenylisocyanate under similar conditions to those described above. The potassium salt of 2-chloro - 1 (2,2-dicyano-1- mercaptovinyl - thio)ethane - 1,2 - dionedioxime of Formula VII is prepared by reaction of an alcoholic solution of dichloroglyoxime with an aqueous solution of di - potassium - 1,1 - dicyano - ethylene - 2,2<SP>1</SP>- dithiol, followed by recrystallization from aqueous dimethylformamide. The potassium salt of S - (2 - chloro - 1,2 - dihydroxy - iminoethyl)N - cyano - dithiocarbamate of Formula VIII is prepared by reaction of a methanolic solution of dichloroglyoxime with an aqueous solution of potassium N-cyanodithiocarbamate under nitrogen, followed by recrystallization from aqueous dimethylformamide. 1,2 -Dicyano - glyoxime - bis - (methylcarbamate) of Formula IX is prepared by reaction of dicyanoglyoxime withmethyl isocyanate in ethereal solution in the presence of 1-2 drops of N-ethyl morpholine base catalyst, followed by recrystallization from light petroleum. 1,2-Dicyanoglyoximebis - (3,4 - dichlorophenylcarbamate) of Formula X is prepared from dicyanoglyoxime and 3,4-  dichlorophenyl-isocyanate in a similar manner to the preparation of the compound of Formula IX.
Patent GB-1314323-A (GB)
Title: Manufacture of 1,3,5-tris-alkylhydroxyphenyl propionyl-hexahydro triazines
IPC: C07D251/04
Filed: 1969-04-24
Abstract: 1314323 1,3,5 - Tris - (alkylhydroxyphenylpropionyl)hexahydrotriazines IMPERIAL CHEMICAL INDUSTRIES Ltd 8 April 1970 [24 April 1969] 21057/69 Heading C2C 1,3,5 - Tris - (alkylhydroxyphenylpropionyl)- hexahydrotriazines of general formula are prepared by reacting 1,3,5-tris-acryloylhexahydrotriazine with a phenol of general formula where R is alkyl, cycloalkyl, aryl, aralkyl or alkaryl, one Q is an H atom and the other either an H atom or a group represented by R, in the presence of an alkali metal or alkali metal hydroxide or alkoxide catalyst in a polar solvent. The process is preferably conducted at 50-150 C. in an alcohol as solvent. In the example 2,6 - di - tert. - butylphenol is reacted with tris-acryloylhexahydrotriazine with K as catalyst to yield 1,3,5-tris-(#-[3,5-di-tert.-butyl- 4-hydroxyphenyl]propionyl)hexahydrotriazine. Reference has been directed by the Comptroller to Specification 1,262,985.
Patent GB-1318120-A (GB)
Title: Fire-blanket pack
IPC: B65D75/58
Filed: 1971-07-30
Abstract: 1318120 Fire blankets N W H WALLIS 30 July 1971 35962/71 Heading A5A A fire-blanket pack comprises a fire-resistant blanket 13 having handling attachments 15  thereon contained in a closed bag 10 which includes opening means 11. The attachments 15, which as shown are flexible tapes with rings 16, pass through means 11 in such a way that pulling them opens 11 and releases the folded blanket. In Fig. 1 plastic bag 10 is transparent, has eyelet 12 for hanging by, and is closed by plastic snap-closure strip 11 having gaps 17 for the passage of tapes 15. The tapes are sewn adjacent and obliquely to the blanket edge. Alternatively, the blanket is enclosed in a sealed, dispensable bag having a line of weakness, perforation or tear strip where the handling attachments emerge. The blanket may be of asbestos, wool, glass-fibre or leather, and the bag closure may be of key and slot form, or fabric strip.
Patent GB-1320080-A (GB)
Title: Cabinet or locker
IPC: A47B67/02
Filed: 1971-07-21
Abstract: 1320080 Cabinets with mirrors A E CHMELIK 21 July 1971 34152/71 Headings A4B and A4H A cabinet comprises a casing A with a mirror fronted door B slidably mounted over the front of the casing A and a pair of mirror fronted wings 8, 9 slidably mounted between the door and the casing front. As shown, the door B carries brackets 3, 4 each with a flange engaged in a guide track 5, 6 in the casing, the flange carrying wheels 7 engaged on one or both tracks 5, 6. The wings 8, 9 are hinged to support panels 12, 13 carrying wheels 16, 17 engaged in channels 14, 15 in a backing board 1 of the door B. In another embodiment Fig. 5 (not shown) the wings are slidably supported by wheels (28, 29) carried by the door brackets 3, 4 and engaged in tracks (30, 31) in the upper and lower edges of the wings. In a further embodiment, Fig.4 (not shown), the support panels 12, 13 carry arms (18 - 21)with wheels engaged in tracks in the door backing.
Patent GB-1320689-A (GB)
Title: Connectors for structural panels
IPC: E04B2/74
Filed: 1969-11-18
Abstract: 1320689 Connectors for panels; clamps DOLPHIN DESIGN ASSOCIATES Ltd and K H KIRKWOOD 18 Nov 1970 [18 Nov 1969] 56446/69 Headings E1W and E2B A connector for structural panels comprises two cylindrical rubber or resilient plastics members 12, 13 one of which has a slot 14 and the other of which has either a bore for a threaded shaft of a foot 22 or a slot similar to that of the member 12. The two members 12, 13 are clamped in a part cylindrical recess of arc greater than 180‹ formed by two jaw members 10, 11 each with two part cylindrical recesses less than 180‹ each. The jaw portions may be of a light alloy or plastics. The threaded shaft may be connected by a ball and socket joint to the foot 22 which supports the panels of a partition interconnected by slotted cylindrical members of the connector.
Patent GB-1325451-A (GB)
Title: Platinum resistance temperature sensors
IPC: G01K1/08
Filed: 1971-05-17
Abstract: 1325451 Thermometer casings ROSEMOUNT ENG CO Ltd 17 May 1971 [17 Feb 1970] 7550/70 Heading G1D [Also in Division H1] In a platinum resistance thermometer assembly, the resistance element 16 is encased in a metal sheath 10-13 which has means both for preventing the ingress of moisture from the atmosphere at temperatures below 100‹C. (and preferably below 150‹) and for relieving the rise in pressure in the sheath when the thermometer is heated such that at temperatures above 500‹C. the pressure within the sheath is at or near atmospheric. In the embodiment of Fig. 1 a vent opening 14 is normaly sealed from the atmosphere but is opened at a temperature between 150‹C. and 500‹C. by the bending of a bi-metal strip 23 bearing a valve member 22. In alternative embodiments Figs. 2-5 (not shown) the opening may be opened and closed by the effect of differential expansion between the sheath and a coaxial tube (42) bearing a valve member (41); a bellows (54) may be used to allow the gas in the sheath to expand at constant pressure; a dessicant (56) may be positioned adjacent the opening to prevent moisture entering the sheath; or a seal (60) may be used such that the sheath is gastight at low temperatures but, due to different expansion of the components of the seal, allows gas passage at high temperatures.
Patent GB-1330845-A (GB)
Title: Separator
IPC: B04B1/08
Filed: 1969-12-16
Abstract: 1330845 Centrifugal separator THOMAS BROADBENT & SONS Ltd 9 Dec 1970 [16 Dec 1969] 61120/69 Heading B2P A centrifuge for separating slurry into light and heavy components comprises a bowl having a plurality of truncated conical discs therein defining a number of flow paths therebetween, alternate paths being closed at one end to provide a plurality of open and closed paths arranged alternately, an interconnection between each closed path and an adjacent similar path for removing a separated slurry component from the separator, and means for introducing slurry to be separated into the bowl. In Fig. 2, a rotatable bowl 12 of a centrifugal separator contains truncated conical discs 28 defining flow paths between them. Alternate flow paths are closed at their inner ends and are connected to one another by a number of axially extending ferrules 40. In operation, the slurry which may be a mixture of liquid and solids is fed through a perforated pipe 34 and passes in the direction of the arrows P separating into solid and liquid components. The solid component moves outwardly under centrifugal force to be collected on the inner periphery of the bowl wall. The liquid component flows up the closed paths in the direction of the arrows Q, through the ferrules 40 and is removed from the separator through an annular slot 50 and over a spilling lip 36. The separator may also be used to separate heavy and light liquids or to classify solids. The discs may alternatively be corrugated, convex or concave.
Patent GB-1332837-A (GB)
Title: Fluidized pneumatic conveyor
IPC: B65G53/22
Filed: 1971-05-10
Abstract: 1332837 Pneumatic conveyer HASCON (UK) Ltd 7 Aug 1972 [10 May 1971] 13956/71 Heading B8A A hopper 1 is divided into a material chamber 18 and a gas chamber 19 by a porous wall 17. Material is loaded into chamber 18 through inlet 7, which is then closed. Valve 54 is then opened to control admission of compressed air through conduit 21 to fluidize the material. When a predetermined pressure has been reached, detected by pressure sensor 51, valve 28 is opened to permit the material to pass out of the hopper through annular orifice 31 and conduit 25. When pressure sensor 55 detects a predetermined low pressure, indicating that the hopper is empty, valves 28 and 54 are closed, inlet 7 is opened and the cycle is repeated. In a modification (Fig. 2, not shown) materials at high temperatures may be transported as flexible valve members of. e.g. rubber are not used.
Patent GB-1336422-A (GB)
Title: Container-filling apparatus
IPC: B65B1/22
Filed: 1972-08-30
Abstract: 1336422 Packaging granular material GRUPUL INDUSTRIAL DE CHIMIE TIRNAVENI 30 Aug 1972 40225/72 Heading B8C Apparatus for filling containers 1 with granular material includes a turntable 14 for supporting a container being filled and for rotating it about its own axis, and legs extending downwardly from the turntable and terminating in rollers which bear against cam portions on a ring disposed about the axis of rotation of the turntable to shake the container and turntable as they rotate. The legs extend through holes in a plate driven by an electric motor 27, springs being disposed between the plate and the rollers to urge the legs against the cam portions. A pivotable fork 5 moves each container from rollers 2 on to a collar (15) which lowers the container on the turntable. A stop 4 holds empty containers upstream of the fork. An automatic weigher discharges the material into a shaking feeder 12 having rollers 9 spring pressed against the top of a container being filled. There is a pneumatic control for the parts 4, 5 (15) &c.
Patent GB-1336777-A (GB)
Title: Channell plate image intensifier
IPC: H01J43/24
Filed: 1971-10-28
Abstract: 1336777 Image intensifier tubes STANDARD TELEPHONES & CABLES Ltd 28 Oct 1971 50077/71 Heading H1D In a channel plate image intensifier the output of the various channels is equalized by providing between the plate and the phosphor screen a resistive structure having a capacitance low enough to set a maximum to the number of electrons of a bunch which are able to reach and excite the phosphor and a time constant greater than the duration of a bunch of electrons produced by a single primary electron. In one arrangement, Fig. 1 (not shown), the phosphor screen is provided with a resistive backing which is preferably of carbon. In another arrangement, Fig. 2 (not shown), a resistive membrane is located 10 microns from the output face of the channel plate; the membrane may be of vitreous carbon obtained by pyrolizing a porous plastics membrane, or alternatively of silicon, woven carbon fibre, or a glass fibre with an evaporated resistive coating. If the duration of a bunch of electrons from a single primary electron is 2 Î 10<SP>-10</SP> seconds, a suitable time constant is about 10<SP>-9</SP> seconds, and a suitable resistance of the backing layer or membrane would be about 2 Î 10<SP>6</SP> ohms per square. In a further arrangement there are two successive channel plates, the second being thinner than the first and having its channels treated with carbon or heavily oxidized manganese glass to provide a low secondary emission ratio; only one electrical connection is made to the second channel plate, and that is made to a high resistance layer on its input face. Another type of tube, Fig. 3 (not shown), uses a screen wherein the phosphor is located at the bottom of an array of blind holes. This array may be provided by etching a fibre optic plate to provide an array of blind holes 5 microns in diameter and 10 microns deep in which the phosphor is deposited. Aluminium is evaporated normally over the phosphor and over the front of the screen, the thin coating deposited on the side walls being made non-conductive by a slight oxidation which does not affect the conductivity of the other layers. Finally, high resistivity material such as germanium is evaporated obliquely to provide the high resistance connection (5 x 10<SP>7</SP> ohms) required between the two layers.
Patent GB-1344612-A (GB)
Title: Vibration attenuator
IPC: F02F1/16
Filed: 1971-04-22
Abstract: 1344612 Cooling; cylinder liners  DEFENCE SECRETARY OF STATE FOR 22 April 1971 [22 Jan 1970] 3099/70 Heading F1B [Also in Division F2] A wet liner for a liquid-cooled engine-cylinder has a laminated wall which constitutes a vibration attenuating component and which has an inner annular layer sandwiched between two other annular layers, the inner layer being composed of a material of sufficiently high ductility and density, eg lead, to provide an acoustic mismatch at the interfaces with the other layers. In the case of liquid-cooled diesel-engine cylinder liners, vibration due to the engine firing results in acoustic waves over a spectrum from subsonic to ultrasonic being transmitted through the liner wall causing cavitation at the interface between the liner and the cooling liquid. In order to prevent this, a laminated liner is formed with a sandwiched layer of lead. A steel cylinder 1a to form the inner part of the liner is coated externally with a thin layer of lead 3, having preferably been first coated with a copper coating 2 to improve the adhesion of the lead and the overall thermal conductivity. The lead is then covered with an outer layer 4 of ferrous metal, eg thin sheet steel may be wrapped around the lining and seam welded. The lead layer can be very thin as, within limits, its effectiveness is independent of its thickness.
Patent GB-1345061-A (GB)
IPC: D04H1/72
Filed: 1972-10-12
Abstract: 1345061 Lap forming machines CURLATOR CORP 12 Oct 1971 [31 Dec 1970] 47443/71 Heading D1N A lap forming machine comprises a duct leading from a licker-in to a condenser having one wall 422 of aerofoil shape which is convexly curved towards the opposite wall of the duct. A removable saber tube 360 is arranged at the upstream end of the aerofoil wall so that air will flow around both sides of the saber. Air flow around the saber tube 360 can be controlled by flap 405. The opposite wall 424 of the duct may diverge from the aerofoil wall by up to 15‹. Specification 762327 is referred to. (For Figure see next column)
Patent GB-1350972-A (GB)
Title: Apparatus for pressure welding metallic structures
IPC: B23K11/18
Filed: 1971-05-18
Abstract: 1350972 Welding by pressure L A COOK and L W BUELL 18 May 1971 15442/71 Heading B3R An apparatus for pressure welding two metal sections comprises a pair of spaced stationary C frames 10, 10, parallel to one another, a movable C frame 16 between the stationary frames 10, 10, a pair of die holders E, F carried on the stationary frames 10, 10 for relative vertical movement and a pair of die holders G, H carried on the movable frame C for relative vertical movement, heating means being provided for heating the sections. The two frames 10, 10 are secured together by bolts 12 and are held apart by spacers and the movable frame 16 is slidable on supports 20 on the frames 10, 10 with bronze anti-friction surfaces 18 between the frames. The lower die holder F is fixed to the frames 10, 10 and the upper holder E is carried on the piston of a cylinder K on the frames 10, 10. The lower die holder H is fixed on the frame 16 and holder G is carried on the piston of cylinder L on the frame. Dies 22 are secured in the die holders. A cylinder M is provided to move the sliding frame 16. Dies as shown in Fig. 5 may produce a weld as shown in Fig. 7.  In operation metal sections are clamped in the dies, heated by resistance heaters in the dies and forced together by cylinder M. Non-heat heatable high strength aluminium or magnesium alloys may be welded to form aircraft panels, chemical tanks, building panels or armour plate. Sandwich panels may be welded and high strength panels may be welded to strips of arc weldable aluminium alloy. Plates of titanium, zirconium or beryllium alloys or alloy steels may be welded. A number of pairs of C frames 10, 10 may be bolted together.
Patent GB-1351388-A (GB)
Title: Cutting blades
IPC: B26B21/54
Filed: 1969-07-22
Abstract: 1351388 Razor blades F L GOLIGHTLY 22 April 1971 [22 Jan 1970] 36791/69 Heading B4B [Also in Division C7] A cutting edge is produced on a cutting blade blank formed of Al or Al alloy by cutting or forming a coarse cutting edge, e.g. by machining, grinding, broaching, rolling, pressing, extrusion or electrochemical means on the blank, anodizing, e.g. in a bath comprising sulphuric and/or oxalic acid or chromic acid to form a cutting edge of anodic aluminium oxide, and producing the final cutting edge within the oxide layer, e.g. by fine honing using diamond wheels. The cutting blade may be a razor blade or surgical knife.