baber/WOPTO huggingface dataset:
Patent GB-1068037-A (GB)
Title: Polymers and a method of treating water
IPC: C02F5/12
Filed: 1963-11-21
Abstract: Mono- or di-(carbethoxymethyl)-acrylamide and mono- or di-(2-hydroxyethyl)-acrylamide are prepared by reacting acrylyl chloride with ethyl glycinate hydrochloride, di-(carbethoxymethyl)-amine, ethanolamine and diethanolamine, respectively, in the presence of triethylamine or excess amine reactant to neutralize the HCl evolved and in the presence, as solvent, of benzene, acetonitrile or chloroform.  In the reaction using di - (carbethoxymethyl) - amine, cuprous chloride is also present.  The products are used to form cation-chelating polymers (see Division C3).ALSO:A method of treating water containing di- or poly-valent metal cation contaminants comprises dispersing therein a polymer having a hydrocarbon main chain and attached directly thereto as side groups (1) N-(carboxymethyl)-carbamyl or N,N-di(carboxymethyl)-carbamyl groups, and (2) enough groups of one or more of the following types to render the polymer dispersible (i.e. truly soluble or colloidally dispersible) in water, viz. hydroxyl, carboxyl, amino, amido, 2-hydroxyethylamido, keto, ether, ester, sulphide, diazo and quaternary ammonium groups, the contaminating cations thereby being deactivated by chelation with the polymer.  Some or all of the carboxyl groups present in the polymer may be in salt form. Preferred polymers are copolymers of mono-or di-(carboxymethyl)-acrylamide with mono-or di-(2-hydroxyethyl)-acrylamide or with acrylic acid.  The method is suitable for inhibiting scale formation in aqueous systems containing alkaline earth metal cations and also for control of boiler sludges, inhibition of corrosion and the treatment of brackish and waste waters. Tests are given illustrating the effectiveness of the preferred copolymers in chelating calcium ions.ALSO:Substantially linear polymers capable of forming chelate rings with di- and poly-valent metal cations comprise a hydrocarbon main chain having attached directly thereto as side groups (1) N-(carboxymethyl)-carbamyl or N,N-di (carboxymethyl)-carbamyl groups; and (2) enough groups of one or more of the following types to render the polymer dispersible (i.e. truly soluble or colloidally dispersible) in water, viz. hydroxyl, carboxyl, amino, amido, s-hydroxy ethyl amido, keto, ether, ester, sulphide, diazo and quaternary ammonium groups. Some or all of the carboxyl groups present in the polymer may be in salt form.  Preferred polymers are copolymers of mono- or di-(carboxy-methyl)-acrylamide with mono- or di-(2-hydroxyethyl)-acrylamide, and carboxy methyl-acrylamide-acrylic acid copolymer.  These are prepared by copolymerizing mono- or di-(carbethoxymethyl)-acrylamide with mono- or di-(2-hydroxyethyl)-acrylamide or with acrylic acid in acetonitrile or benzene and in the presence of benzoyl peroxide, the polymers so obtained being saponified with 2.5 N sodium hydroxide to convert the carbethoxymethyl groups to carboxymethyl groups (sodium salt form). The polymers are useful for treating water to remove or deactivate contaminating cations therein, e.g. alkaline earth metal cations.
Patent GB-1504554-A (GB)
Title: Cyclodiene insecticides
IPC: C07D493/08
Filed: 1975-11-06
Abstract: 1504554 Cyclodiene insecticides NATIONAL RESEARCH DEVELOPMENT CORP 4 Nov 1976 [6 Nov 1975] 46076/75 Heading C2C The invention comprises insecticidally active compounds of structural Formula I wherein R 1 , R 2 , and R 3  are H or Cl at least one of them being H, and the oxygen bridge is 5 : 8, 6 : 7, or 7 : 8, or both 5 : 8 and 6 : 7. The compounds of Formula I may be prepared by treating, in any desired order, an appropriate analogue or isomer of dieldrin or dihydroaldrin by photodechlorination under the influence of ultraviolet light of one or more vinylic chlorine atoms and reductive replacement of a 9-chlorine atom where appropriate. The compounds of Formula I are used as insecticidal compositions and compositions as such are described and claimed.
Patent GB-1512588-A (GB)
Title: Engine exhaust port bridging
IPC: F01M1/00
Filed: 1976-11-05
Abstract: 1512588 Rotary positive displacement device; cooling valve seats CATERPILLAR TRACTOR CO 5 Nov 1976 [8 April 1976] 46189/76 Headings F1B and F1F In an I.C. engine such as a slant axis rotary engine, having a housing with interior walls defining an operating chamber for containing a piston carrying a seal for sealingly engaging an interior wall of the housing, an exhaust port is provided in the interior wall, the port having a series of openings extending through the wall and spaced from one another by bridging elements to support the seal, the bridging elements including coolant passages therewithin, so that they can be cooled to maintain a good oil film at the port to minimize wear on the seal, the bridging elements and coolant passages being formed by at least one insert 60 (Fig. 2) comprising a stamping of relatively high heat conductivity material having U-shaped troughs 62, 64 (Fig. 3) closed by caps 68 to form a tubular structure. A coating 70 of wear resistant material is provided which forms a portion of the interior wall. An insulating sheath 72 and a stiffener 66 may be provided.
Patent GB-993429-A (GB)
Title: Phenylacetates having sulphur-containing substituents
IPC: C07C333/18
Filed: 1961-12-27
Abstract: The invention comprises phenylacetates of the formula <FORM:0993429/C2/1> wherein R represents a methoxy, ethoxy, isopropoxy, dimethylamino or diethylamino group, and a process for the preparation thereof by reacting chloromethyl phenylacetate with a compound of the formula <FORM:0993429/C2/2> wherein M is an alkali metal, in the presence of an inert solvent for one or both reactants. Suitable reaction temperatures are from 10 DEG  to 80 DEG  C. and specified solvents are monohydric alcohols, ketones or mixtures thereof. The metal halide formed may be eliminated by filtration or addition of water to precipitate the organic product, or the organic product may be isolated by, for example, concentration, distillation or crystallization.  The compounds of the invention have fungicidal activity (see Division A5).ALSO:Fungicidal compositions contain as an active ingredient phenylacetates of the formula <FORM:0993429/A5-A6/1> wherein R represents a methoxy, ethoxy, isopropoxy, dimethylamino or diethylamino group.  Specified compositions are (1) 90g. dimethyldithiocarbamylcarbinol phenylacetate together with 68g. lignin sulphite, 3g. expanded silica, 0,15g. kieselguhr and 0,05g. of a wetting agent comprising an ethylene oxide condensation product, and (2) 50g. diethyldithiocarbamylcarbinol phenylacetate together with 40g. kieselguhr, 2g. expanded silica and 8g. lignin sulphite.  These compositions are used as homogeneous dispersions in water.
Patent GB-1334786-A (GB)
Title: Polycarbonates of low inflammability
IPC: C08K5/00
Filed: 1971-10-07
Abstract: 1334786 Polycarbonate compositions BAYER AG 7 Oct 1971 [8 Oct 1970 17 March 1971] 46748/71 Heading C3R A composition comprises a high molecular weight thermoplastic polycarbonate as the sole organic polymeric component and 0À2 to 0À00005 wt. per cent of an alkali metal salt of an organic acid, the salt being soluble in the polycarbonate melt. The polycarbonate may be based on halogen-free aromatic dihydroxy compounds optionally mixed with halogenated aromatic dihydroxy compounds. The examples describe a copolycarbonate of 2,2-(4,41-dihydroxydiphenyl)propane and 2,2-(3,5,3<SP>1</SP>,5<SP>1</SP>- tetrachloro - 4,4<SP>1 </SP>- dihydroxydiphenyl)propane with potassium iso-octanoate optionally mixed with nickel iso-octanoate, potassium perfluorooctanoate, potassium salt of phthalic acid monobenzyl ester, lithium salt of 5-ethyl-1,3-dioxane 5-carboxylic acid and sodium perchlorobenzoate, and a polycarbonate from bisphenol A with potassium iso-octanoate and sodium perfluorooctanoate. The compositions are of low inflammability.
Patent GB-1276688-A (GB)
Title: Catalytic synthesis of linear alpha olefins
Inventor: FAVIS DIMITRIOS VASILIOS
IPC: C08F10/00
Filed: 1969-09-24
Abstract: 1276688 Polyolefins ESSO RESEARCH & ENG CO 24 Sept 1969 47035/69 Heading C3P [Also in Division C5] Linear alpha olefin polymers are prepared by polymerizing an ethylene-containing gas in the presence of a minor amount of a catalyst comprising (1) an alkyl compound of a Group IGroup III metal, particularly triethylaluminium, diethylaluminium chloride or ethylaluminium dichloride, (2) a halide of a transition metal of Groups IVb, Vb, VIb or VIII, particularly titanium tetrachloride and (3) a tertiary halide or a C 1-10  alkyl halocyclopentane, particularly methylchlorocyclopentane, in an inert aromatic hydrocarbon diluent, particularly toluene or xylene, at from - 130‹ to + 130‹ F. and at a pressure from 100 to 2000 p.s.i.g. A metallocene, such as ferrocene, may also be present.
Patent GB-1155644-A (GB)
Title: Improvements in Work Steadies for use on Machine Tools
Inventor: GULLIFORD FREDERICK
IPC: B24B41/06
Filed: 1966-10-20
Abstract: 1,155,644. Work steadies. WEYBURN ENG. CO. Ltd. 4 Oct., 1967 [20 Oct., 1966], No. 47060/66. Headings B3D and B3T. A work steady for use in lathes and grinding machines of the type in which a workpieee is supported on three circumferentially spaced pads or rollers, one of which is displaceable to permit the insertion and removal of the workpiece characterized in that the rollers 6, 9 and 11 are mounted on pivoted levers 3, 7 and 10, the arm 5 of the lever 3 having means in the form of a screw device 22, 21a for positively moving the roller 6 into contact with the workpiece 24 and holding the arm and roller in this position, all the levers being connected by a system of push rods 13, 20, 21 and levers 16, 14, whereby the movement of lever 3 effects corresponding movements of the levers 7 and 10 so that all the work-supporting rollers move towards or away from the axis of the workpiece by equal amounts. The levers 7 and 10 are pivotably mounted on a common spindle 36 and are clampable on the spindle during a machining operation by fluid means in the form of a cylinder 39 with an annular piston 42, whereby the levers are urged into clamping abutment axially of the spindle 36 against the support frame 1. Pneumatic/hydraulic means 47 is provided to produce the high hydraulic pressure required for the clamping action. The push-rods 13, 20, 21 are slidably mounted in a guide block 29 provided with lubricating passages 32, and the respective rods have screw adjusting means 26, 27, 28 respectively to facilitate initial setting of the lever positions, the displacement of the rollers being initiated from lever 3 via push-rod 13 which simultaneously actuates the levers 7 and 10 via levers 14 and 16 and push rods 20 and 21.
Patent GB-1532007-A (GB)
Title: Apparatus for deodorizing fats and oils
IPC: C11B3/14
Filed: 1975-11-19
Abstract: 1532007 Steam stripper M LEVA 19 Nov 1975 47577/75 Heading B1R [Also in Division C5] A steam stripper comprises a chamber 1 containing a plurality of vertically stacked, parallely disposed, horizontal plates 6, each plate having a plurality of apertures therein and associated with each aperture a downwardly flared, truncated cone-shaped chimney 6a down which the liquid to be stripped flows from a film 6b on each plate and up which steam passes, the top of the plates and apertures being free from projections, an outlet 4 for volatiles and steam inlets 2, 2a and 2b.
Patent GB-1465139-A (GB)
Title: Machine tools
IPC: B23B23/00
Filed: 1974-11-06
Abstract: 1465139 Turret lathes; lathe centres CHARLES CHURCHILL Ltd 2 Feb 1976 [6 Nov 1974] 48037/74 Headings B3T and B3B A turret lathe comprises a rotatable work supporting chuck 13, two independently operable tool turrets 25, 26 mounted on turret slides 23, 24 which in turn are supported on carriages 17, 19 respectively, the carriage 17 being displaceable along slideways 15 parallel to the axis A of the chuck 13 and the carriage 19 being displaceable on slideways 16 also parallel to the chuck axis A, the slideways being on opposite sides of the chuck axis. The upper carriage 17 also has transverse guideways 21 on which the turret slide is mounted so that the turret 25 can move both longitudinally and transversely with respect to the axis A in directions Z and X respectively. The turret slide 24 on the carriage 19 also supports a tail stock unit 28 which has a line centre 27 and which is displaceable relative to the turret slide 24 by an hydraulic ram 33 so that when required a workpiece mounted in the chuck 13 can be supported at its end remote from the chuck 13 by the centre 27. The carriages are operable by motor driven feed screws 18A and 20A respectively.
Patent GB-1515560-A (GB)
Title: Fluid coupling
IPC: F16D35/02
Filed: 1975-11-21
Abstract: 1515560 Viscous shear couplings; seals EATON CORP 21 Nov 1975 [29 Nov 1974] 48050/75 Headings F2B and F2W In a heavy duty viscous shear coupling for driving the engine cooling fan of a motor vehicle wherein viscous shear spaces 20, 21 are provided between a driving disc 11 and a surrounding driven housing 15 which is supported for rotation relative to the driving disc 11  by bearings 60, 100 arranged on either side of the disc 11, one of the bearings 100 is arranged in a radial plane containing the shear space by mounting the bearing in a flange 101 of the casing which projects into a recess in the driving disc. The driving disc 11 is connected by a shaft 13 to a driving pulley 14. The shaft 13 is connected by pins 71 to a further shaft 70 rotatably mounted within an axially extending flange 19 of the engine housing 75. An impact pump 30 continuously pumps fluid from the shear space 20, 21 to a reservoir 45 formed in the housing 15. Fluid flow from the reservoir 45 to the shear spaces 20, 21 is controlled by a valve 51 in response to the temperature of ambient air flowing over a temperature sensitive element 54. The temperature sensitive element 54 acts through a plunger 174 against the bias of a spring 176 on an arcuate valve element 51 (Fig. 4, not shown) which is pivoted at one end and controls flow through passages 52 at its other end. Seals 103, 121 are provided between a hub 11a of the driving disc and the housing 15. The seal 121 has a lip urged into engagement with the hub 11a by a garter spring. At high rotational speeds the pressure of the lip on the hub 11a is reduced and the lip may completely lift-off the hub. Cooling air channels 160 are provided in the housing 15 adjacent the shear space 21 and cooling fins 160a are provided therein. Cooling fins 16a are also provided adjacent the shear space 20. Specification 1,515,559 contains similar subject matter.
Patent GB-1535795-A (GB)
Title: Electronic firing device for missiles
IPC: F42B15/01
Filed: 1976-11-18
Abstract: 1535795 Electronic counting fuzes for missiles MEFINA SA 18 Nov 1976 [25 Nov 1975] 48057/76 Heading F3A In an electronic fuze for a missile, a clock signal from an oscillator is transformed into a coded signal whose code is the same as that of a coded time interval signal stored in a memory; and the clock signal fires an electric primer when the two signals are coincident. The energy for the fuze is supplied to a capacitor which is charged by a low frequency signal applied to an induction coil. Superimposed on the low frequency signal is a high frequency signal which represents the time interval by a train of pulses. The circuitry for the fuze comprises a coil 2, a low pass filter 3, a capacitor 1, an inertia switch 8 closed at launch, an oscillator 7, a logic firing control circuit 11, a bore security switch 18 which opens when the missile is shot, an electric primer 12, a contact, inertia or piezo-electric switch 10 closed by impact of the missile, a frequency divider 9, a counter 17, a coincidence comparator 6, a shift memory register 5, a binary counter 15, a high frequency pass filter 4, a monostable flip-flop timer 13 and a delay element 16.
Patent GB-1437338-A (GB)
Title: Terminating electric cables
IPC: H02G15/04
Filed: 1972-10-19
Abstract: 1437338 Cable termination gland BICC Ltd 18 Oct 1973 [19 Oct 1972] 48282/72 Heading H2E A tapered elastomeric (e.g. neoprene) shroud 7 on a cable terminating gland to seal impermeably the cable armouring 4 has, to assist fitting, the narrow end distended by a rigid, preferably frangible, short-tube 11 (e.g. of cardboard) removed after assembly. If not frangible the tube is split. The shroud is fixed either to ring 6 (Fig. 2, not shown) or to cap nut 10 and is clamped by forced-on ferrule 9 or by adhesive. Armouring 4 is clamped in the conical space 5 between the gland body 1 and ring 6.
Patent GB-1486848-A (GB)
Title: Spindle housing mounting in a textile machine
IPC: D01H4/08
Filed: 1975-11-26
Abstract: 1486848 Mounting rotor housings; open end spinners ELITEX 26 Nov 1975 [29 Nov 1974] 48520/75 Heading DID In a textile machine, a spindle housing mounting comprises a boss, a pin surrounded by the boss, and a resilient clamping element of low-pressure polyethylene mounted between opposing surfaces of the boss, and the pin. In an open-end spinning unit, Fig. 2, rotor housing 16 and fibre-combing body I are interconnected by pin 14 surrounded by lowpressure polyethylene element 15. The pin may be secured, and the element shaped, as shown in Figs. 3 and 4. The polyethylene may have a molecular weight of 106 and a hardness of 60 to 80 Shore. To open the spinning unit, latch 20 is released, and body 1 pivoted at 11 until stop 23 prevents pivoting, when pulley 18 is removed from belt 19.
Patent GB-1171030-A (GB)
Title: Sound Absorbing Member.
Inventor: ECKEL OLIVER CLARENCE
IPC: E04B1/86
Filed: 1967-10-26
Abstract: 1,171,030. Sound absorbing laminate. O. C. ECKEL. 26 Oct., 1967, No. 48768/67. Heading B5N. A sound absorbing member comprises a wall member 10 having perforations 12, a panel 14 on one side of the wall member, the panel having planar portions 18 and a plurality of ridge portions 16, both the portions 16 and 18 containing perforations 20, the longitudinal apexes of the ridge portions 16 lying in a plane parallel to the plane of the portions 18, and a sound absorptive member which includes sound absorptive material 24, lying on the side of the panel 14 remote from the wall member 10, and spaced from the member 10 by the ridge portions 16. As described, the wall member 10 is of metal, the portions 16 are narrower than the portions 18, the sound absorptive member consists of a screen or wire mesh 22 adjacent the panel 14, a second wall member 26, which may be perforated, and sound absorptive fibre-glass 24 which may be enveloped in a fibre-glass cloth. In a second embodiment, not shown, a rigid panel similar to the panel 14 is placed between that panel and the member 10 with its projecting portions extending perpendicular to those of the panel 14. The member may be used on walls, floors, or ceilings.
Patent GB-1532658-A (GB)
Title: Charge-coupled amplifier
IPC: G06G7/14
Filed: 1975-11-28
Abstract: 1532658 Transistor gating circuits, pulse amplitude modulators NIPPON HOSO KYOKAI 28 Nov 1975 [29 Nov 1974] 48914/75 Headings H3T H3H and H4L  In a differential charge coupled amplifier, charge is transferred between two capacitors C2, Cl in dependance on clock signals Al, A2, A3 so that an output signal is produced which corresponds to the difference between two input signals B and E applied to the emitter and base respectively of a transistor Tr 1 . During a first clock interval, points A1, A2 are at a high level, so that diode D2 turns on to allow capacitor C1 to charge to the difference between the clock voltage at A1 and the sampled and stored value at B of the first analogue input signal. Point A3 is also at a high level, so that capacitor C2 charges to the clock voltage. During the next clock interval points A1, A2, A3 are at low clock level turning on transistor Tr 1 . Capacitor C2 now discharges into capacitor C1 until the voltage across it is equal to the difference between the second analogue input E and the value stored on C1 during the previous clock interval. In modifications, the diode D1 may be replaced by a transistor circuit similar to Tr 2 , d1, cl associated with the first capacitor, Fig. 5 (not shown) or the transistor circuit Tr 2 , dl, cl may be replaced with a diode (D3) Fig. 6 (not shown). The diode D2 may be replaced by an equivalent circuit having zero impedance Fig. 7 (not shown). The charge coupled circuit is used in an A/D converter in which higher order levels of the input analogue signal are A to D converted at 12 to provide the upper bits of the digital signal and reconverted back to analogue form at 13 to provide the second input E to the charge coupled circuit 10, the sampled input signal providing the first input B. The output of circuit 10 is then converted in a second A to D converter 14 to provide the lower bits of the digital output.
Patent GB-982662-A (GB)
Title: Hardening process for polyepoxide resins
IPC: C08L63/00
Filed: 1962-02-08
Abstract: Polyepoxides are hardened by reaction with the polyanhydrides of acid polyesters.  The polyanhydrides are prepared from the corresponding acid polyesters, using a dehydrating agent which may be an organic or mineral acid anhydride, e.g. acetic anhydride. Suitable polyepoxides can be derived from glycerine, 1,4-butanediol, 1,2,4,5-tetramethylcyclohexanol, or p,p1 - dihydroxydiphenyl - 2,2 - propane (DIAN) by reaction with epichlorohydrin.  Hardening accelerators, e.g. an amine, may be used, and also, if desired, other hardeners and conventional additives.  In examples the anhydrides used for hardening polyepoxides are prepared, using acetic anhydride as dehydrating agent, from acid polyesters prepared from the following ingredients:-(1) the diacetate of DIAN and excess DIAN-o,o1-diacetic acid; (2) the diacetate of 1,1,3,3-tetrachloro-DIAN and excess 1,1,3,3 - tetrachloro - DIAN - o,o1 -diacetic acid; (3) hydroquinone diacetate and tetradecane - 1,6 - dicarboxylic acid; (4) 1,6 -hexane diol and sebacic acid; (5) the diacetate of DIAN and sebacic acid; (6) the diacetate of bisphenol A and adipic acid.  The physical properties of epoxy resins cured with the anhydrides of the invention are measured and compared with those of an epoxy resin cured with an acid polyester.  The hardeners can be used for moulding or impregnating resins or for electrical insulation, e.g. as impregnants of a mica strip.
Patent GB-1522119-A (GB)
Title: Mixing head
IPC: B29B9/00
Filed: 1976-11-24
Abstract: 1522119 Mixing apparatus UPJOHN CO 24 Nov 1976 [8 Dec 1975] 49082/76 Heading B1C A mixing head (e.g. for plastics, components) has a mixing chamber 12 with a discharge rod 11 actuated by a doubleacting piston 13; the rod is without recycling grooves or recesses. In the withdrawn position shown the rod uncovers inlet ports 16, 16' which are supplied by spring-biased pressure-operated inlet valves 5, 5', and also actuates a plunger 30 and switch 31. Each inlet valve is connected to a supply duct 3, 3' and a return duct (6, 6', Fig. 1, not shown). The components are supplied by a pump through an arrangement (described also and claimed in Specification 1477116) in which during the inoperative period part of each component is recirculated through a by-pass (10) and part through the mixing head; actuation of the switch 31 signals or initiates closure of a valve (7) which causes the whole component flow to be supplied to the mixing head at a higher pressure which opens the inlet valve. In operation the valve (7) is closed before the rod 11 is withdrawn past the inlet ports, so that the period of time during which the components of a 'shot' are supplied is determined solely by the time during which the ports are uncovered by the rod. Reference has been directed by the comptroller to Specification 1477116