baber/WOPTO huggingface dataset:
Patent GB-1271803-A (GB)
Title: A covered, rigid, elongate member and a method of and apparatus for producing same
IPC: B29C48/154
Filed: 1969-08-28
Abstract: 1,271,803. Extrusion coating of pipes. SEKISUI ADOHEYA KOGYO K.K. 28 Aug., 1969 [17 Sept., 1968; 21 Oct., 1968], No. 42907/69. Heading B5A. [Also in Divisions B8 and F2]  A rigid pipe or rod a of substantially uniform cross-section is wrapped with a tape b, which extends longitudinally of the pipe or rod and has a width substantially equal to the peripheral dimension of the pipe or rod, the longitudinal edges of the tape being pressed towards the rod by a roller 9 and the tape then being coated with a transparent thermoplastic resin c, e.g. by an extrusion nozzle 10. The pipe or rod may be of metal, e.g. iron, wood or plastics material, and may be of circular elliptical or substantially I- shaped cross-section, Figs. 8-10, (not shown). The tape may be of metal e.g. aluminium foil or cloth, paper or plastics material provided with a metallized surface. The tape may be coloured, marked or embossed. The tape is skelped round the pipe or rod by passing both components through successive apertures of decreasing size, Fig. 3 (not shown), and then through a member 8 having a bore tapering towards its outlet end 81, which is provided with a resilient lining. The plastics coating c may be of cellulose acetate, cellulose acetate-butyrate or P.V.C. A further plastics coating, e.g. of P.V.C., polyethylene or polypropylene, may be applied to the pipe or rod before the tape b is applied.
Patent GB-1502865-A (GB)
Title: Locking device for retention of conductor bar in open winding slot of dynamoelectric machine rotor or stator
IPC: H02K3/487
Filed: 1975-10-20
Abstract: 1502865 Retaining conductor bars in machine winding slots ALLIS-CHALMERS CORP 20 Oct 1975 [27 Nov 1974] 42982/75 Heading H2A Conductor bars 18, 19 are retained in a stator or rotor winding slot 16 by a generally U-shaped body 6 comprising a planar bridging portion 9, a pair of legs 7, 8, and a pair of resilient tabs 11, 12 inclined to the legs 7, 8. The body 6 is inserted radially into the slot 16 from above the conductor bars 18, 19, and the tabs 11, 12 either snap into grooves 21, 22 formed in the side walls of the slot 16, as shown, or bite directly into the side walls of the slot 16 if no such grooves are provided. The body 6 may be of spring steel, aluminium or plastics material. A similar body (Fig. 3, not shown) has a part of the bridging portion removed, and has tabs (13) bent from the legs (7, 8).
Patent GB-1521265-A (GB)
Title: Exhaust gas power extractor for internal combustion engin
IPC: F02G5/00
Filed: 1975-10-06
Abstract: 1521265 Power plant comprising IC engine and exhaust gas turbine NOEL PENNY TURBINES Ltd 6 Oct 1975 [4 Oct 1974] 43054/74 Headings F1B, F1G and F1Q The invention relates to a power plant comprising an I.C. engine 10 and a gas turbine 15  driven by exhaust gases from the engine, the gases being expanded in the turbine to a pressure below atmospheric. The exhaust gases pass from the exhaust manifold 21 of the engine to the exhaust gas turbine 15 being expanded to a pressure below atmospheric; the gases are then cooled in a cooler 19, passed to a compressor 16 in which the gases are pressurized to atmospheric pressure, and are finally discharged through outlet 20. The compressor 16 is driven by the turbine, excess turbine power being transmitted through gearing 23, 24 to a common output shaft 13. In Fig. 4 the turbine power is again transmitted from shaft 17 through gearing 23, 24 to the common output shaft, the compressor being driven by the I.C. engine through shaft 28, gearing 27, 26 and shaft 25.
Patent GB-1327587-A (GB)
Title: Fuse-lage for sub-sonic aircraft
IPC: B64C29/00
Filed: 1970-09-09
Abstract: 1327587 Aircraft fuselage VEREINIGTE FLUGTECHNISCHE WERKE-FOKKER GmbH 9 Sept 1970 [9 Sept 1969] 43215/70 Heading B7W An aircraft fuselage has a form corresponding to the surface resulting when two bodies 7, 8 are arranged substantially parallel and superimposed one above the other so that their transverse cross-sections intersect, the transverse cross-section of the lower body 7 being substantially elliptical, with the major axis normally horizontal, and that of the upper body 8 being substantially circular, the cross-section of the fuselage and of each body increasing away from the nose to a maximum and then decreasing toward the tail. The forward end of the lower body 7 projects forwardly of the upper body 8 to form the nose, and its longitudinal crosssection is parabolic, that of the forward end of the upper body being elliptical. Lift engines 9 and freight containers 10 may be located in the lower part of the fuselage and cabins 11, 12 in the upper.
Patent GB-973712-A (GB)
Title: Improvements in or relating to resins of the novolak-type
IPC: C08G8/28
Filed: 1960-12-16
Abstract: A novolak type resin is made by forming a pre-condensate by causing a mixture containing a hydroxybenzene compound, e.g. phenol, m-cresol or resorcinol, and formaldehyde in water, in a proportion of at least 3 mols of formaldehyde per mol of hydroxybenzene compound, to react in the presence of a basically-reacting substance until at least 2 mols of formaldehyde are bound per mol of hydroxybenzene compound, neutralising the reaction mixture and thereafter adding to the resulting mixture containing the pre-condensate, so much further hydroxybenzene compound that the gram-molecular ratio of total hydroxybenzene compound to free and bound formaldehyde becomes at least 1-17:1, and heating the resulting mixture in the presence of an acid-reacting substance until a novolak-type resin is obtained. The pre-condensate-forming reaction is preferably effected at 30 DEG  to 50 DEG C. in the presence of a strong base, e.g. a hydroxide of an alkali or alkaline earth metal, and the condensation reaction may be effected at 80 DEG  to 115 DEG C. under reflux, in the presence of a strong acid.  In a typical example (1) a mixture of an aqueous phenol solution, formalin and Ca(OH)2 is heated at 50 DEG C. for 26 hours; further phenol is added to give the desired ratio of phenol to formaldehyde, after which the Ca(OH)2 in the mixture is neutralised with H2SO4 and precipitated CaSO4 is filtered off; the resulting mixture is heated to boiling, acidified with HCl and refluxed for 80 minutes to yield, after distilling off water under reduced pressure and neutralising the acid with MgO, a hard, brittle novolak resin. The resins may be mixed with known fillers and/or pigments and hardening agents, e.g. hexamethylenetetramine, and used as moulding powders, resin adhesives and cements.
Patent GB-1040188-A (GB)
Title: Improvements in staple headed nails
IPC: F16B15/02
Filed: 1963-11-04
Abstract: 1,040,188. Nails; staples. G. K. RAHMQVIST. Nov. 4, 1963 [Nov. 5, 1962], No. 43429/63. Heading F2H. A nail has a portion 2 bent at an acute angle to its shank 1 to form a head and the end 3 is bent parallel to the shank so that when the nail is driven by a member 7 the thrust P is along the shank 1 to avoid bending before entering wood &c. The shank 1, which has opposed and staggered serrations 6, 6<SP>1</SP>, has a chisel point 4 so that it bends in the wood &c., and the end 3 has a similar point 5, Figs. 1, 2 (not shown), or is tapered, Figs. 3, 4 (not shown), so that the end spreads out and the portion 2 becomes perpendicular to the shank 1.
Patent GB-1298502-A (GB)
Title: Anionic catalytic polymerization of lactams
IPC: C08L77/00
Filed: 1971-09-20
Abstract: 1298502 Lactam polymerization STAMICARBON NV 20 Sept 1971 [23 Sept 1970] 43743/71 Heading C3R Lactam(s) are polymerized in the presence of a catalyst and of a promoter containing one or more urea, thiourea, or guanidine radicals having at least one organic substituent, and up to 25% wt. based on total polymerization mixture, of a polyether soluble in the polymerization mixture. The polyether may be polytetrahydrofuran, polyepichlorohydrin polyglycidylethers, a poly-(ethylene and/or propylene) glycol, or e.g. nonyl- or methoxynonyl-phenoxy polyethylene glycol. There may be, e.g. 2-15% polyether, whose M.W. may be up to 20,000. The promoter may be a bis-(lactam N-carbonylamine) -hexane or -toluene, caprolactam N- carbonylaminebenzine, or 1,6-bis-(N,N-dibutylureido)-hexane. There may be, e.g. 0À5% mole promoter based on monomer. The catalyst may be a conventional lactam-N-anion formed from lactam and usual reactive metal compounds, e.g. NaH. There may be, e.g. 0À1-10% mole catalyst based on monomer. The lactam monomer may be caprolactam. The polymerization may be performed by dissolving the promoter in half the molten lactam, and dissolving first the catalyst and then the polyether in the remaining half of the molten lactam. The two solutions at 100 C. are combined and introduced into an Al mould at 160 C. Specification 1,298,501 is referred to.
Patent GB-1404641-A (GB)
Title: Manufacture of styrenes
IPC: B01J8/04
Filed: 1972-09-21
Abstract: 1404641 Catalytic reactor; oxidation catalysts SOC NATIONALE DES PETROLES D'AQUITAINE 21 Sept 1972 [23 Sept 1971 8 Sept 1972] 43876/72 Headings B1E and BIF [Also in Division C5] A catalytic reactor for producing styrene or alkyl-substituted styrene film ethyl benzene or alkyl-substituted ethyl benzene comprises a column 1 with layers A 1 , A 2 , A 3  and As of dehydrogenation catalyst with interposed layers B 1 , B 2  and B 3  of oxidation catalyst, with pipes 9, 10 and 11 for injection of oxygen only in the regions of oxidation catalyst. A suitable oxidation catalyst is prepared by treating a degasified molecular screen (3-12Š) with a solution of ammonium chloroplatinate and calcining the treated screen under N 2  at 300‹C.
Patent GB-1404886-A (GB)
Title: Phase shifting circuit
IPC: H03H11/20
Filed: 1973-09-18
Abstract: 1404886 Phase shifters SONY CORP 18 Sept 1973 [22 Sept 1972] 43833/73 Heading H3R A variable phase shifter comprises: the baseemitter path of a transistor Q 1  and a capacitor C 1  connected in series across a signal source ein, -ein; an output means coupled to the emitter of the transistor; and an adjustable current source 2 for varying the emitter current, and hence the emitter-base resistance of the transistor Q 1 . The current source comprises a transistor Q 2  whose base current is controllable, e.g. by resistor R 14 , and the output means comprises transistors Q 4 , Q 5 , Q 6  and resonant circuit L 1 , C 3  tuned to the output signal. The circuit may be employed in a colour TV receiver or a phase locked oscillator, Figs. 6, 7 (not shown).
Patent GB-1036606-A (GB)
Title: Glass
IPC: C03C1/02
Filed: 1964-10-29
Abstract: A method of preparing a glass batch comprises adding an aqueous solution of caustic soda to a mixture of sand, soda-ash and a calcium-carbonate-containing material in a quantity sufficient to provide between 5 and 40% by weight of the Na2O content of the soda ash contained, and controlling the reaction of the caustic soda with the calcium carbonate so that no more than 50% by weight of the caustic soda is reacted with the calcium carbonate before the mixture is fed to a glass forming furnace by regulating the temperature of the mixture and the time in which the mixture is fed to the furnace. The aqueous solution of caustic soda is preferably 35 to 70% solution of NaOH.  The calcium carbonate may be in the form of limestone, dolomite or a mixture thereof.  If dolomite is used, the material must be fed to the furnace within 2 to 8 hours of addition of the caustic soda, and if limestone within 4 hours after addition of the caustic soda.  The temperature of the batch is maintained below 200 DEG  F., preferably between 40 DEG  and 160 DEG  F.  A typical glass batch given is sand 57%; Na2CO3 18.5%; Na2SO4 3.5%; dolomite 13.0%; limestone 3.5%; feldspar 3.5%.
Patent GB-1350936-A (GB)
Title: Well pumping apparatus for polluted water
IPC: F04D7/04
Filed: 1971-09-22
Abstract: 1350936 Centrifugal and screw pumps MOWID ANSTALT 22 Sept 1971 [22 Sept 1970] 44159/71 Heading F1C A well pump comprises a portion adapted to be fixed arranged within a well and comprising a suction housing 11, a pump housing 10 and a vertical shell 7 communicating at its upper end with a discharge pipe 5, and a removable portion comprising an electric motor 15, a centrifugal or screw impeller 16 and a plate 18 which seats upon the upper end of the housing 10. A guide rod 21 guides the removable portion when it is raised or lowered and also prevents it from rotating when in use.
Patent GB-1318546-A (GB)
Title: Rotary hydraulic machine such as a pump or motor
IPC: F04C2/10
Filed: 1970-09-16
Abstract: 1318546 Rotary positive - displacement machines DANFOSS AS 16 Sept 1970 [10 Oct 1969] 44188/70 Heading F1F In an hydraulic gerotor-type pump, or motor having a planetary toothed-wheel 5 meshing with rollers 3 on a fixed ring 1, wear is reduced by the ring pitch-circle W 1  having a diameter smaller than that of an envelope T defined by the tangents to the roller crowns.
Patent GB-1499988-A (GB)
Title: Gear grinding tools
IPC: B23F9/02
Filed: 1974-10-11
Abstract: 1499988 Grinding gears CRANFIELD INSTITUTE OF TECHNOLOGY 13 Oct 1975 [11 Oct 1974] 44233/74 Heading B3K In a method of grinding a spiral bevel gear the gear is rotated about its axis and the concave and convex flank the gear teeth are ground by respective ones of two grinding wheels which are driven in rotation about their own axes and which are revolved bodily about a further axis. A gear grinding machine suitable for this process comprises a support 1 with diametrically opposed slides 14 and 15 on which are mounted grinding wheels 2 and 3 driven about their axes 4 and 5 by electric motors 6 and 7. The support is also rotatable bodily about an axis 8 to present each grinding wheel in turn (as the support rotates through 180 degrees) to a concave tooth flank and a convex tooth flank of the gear 11 which is itself rotated about an axis of an angle to the axis 8. The respective speeds of rotation of the support 1 and the gear 11 are such that as the support 1 rotates through 180 degrees the gear 11 is rotated such that the grinding wheel 2 completes the grinding of the concave flank 9 of a tooth 10 the grinding wheel 3 commences the grinding of the convex flank 12 of an adjacent gear tooth 13. It is also envisaged that a further motion could be imparted to the support 1 to produce a "rolling" action to generate an involute profile on the teeth flanks.
Patent GB-1282986-A (GB)
Title: High molecular weight polyimides containing quinazolone ring systems
Inventor: WOLF GERHARD DIETER
IPC: C08G73/10
Filed: 1970-09-17
Abstract: 1282986 Polyamido-polycarboxylic acids; polyimides FARBENFABRIKEN BAYER AG 17 Sept 1970 [20 Sept 1969] 44428/70 Heading C3R [Also in Division C2] Aromatic polyimides P containing 4(3H)- quinazolone ring systems consist of 50-100% moles of recurring units A and 0-50% moles of units B where Ar and Ar<SP>1</SP> are aromatic groups; R is H, C 1-4  alkyl, phenyl, halogenophenyl, or alkylphenyl; X is one or more aromatic rings which may be substituted by halogen or alkyl, and which may be fused or attached via a single bond or via -O-, -S-, -CH 2 -, or -SO 2 -, e.g. the tetravalent residue of benzene, naphthalene, diphenyl, perylene, azobenzene, benzophenone, or diphenyl ether. Ar may be one or more aromatic rings which may be condensed or attached via single bonds or via -O-, -S-, -CH 2 -, -SO 2 -, -CO-, or -N=N-. Polyimide P may be made by reaction between dianhydride D O(OC) 2 Ar(CO) 2 O and 50-100% moles of diamine (II) and 0-50% moles diamine (III) H 2 N-Ar<SP>1</SP>-NH 2 , in a polar organic solvent S at -30‹ to +50‹ C., the resultant polyamidopolycarboxylic acid Q being converted to polyimide P by thermal or chemical cyclization. Solvent S may be an N,N-dialkylcarboxylic acid amide, an N-alkyl lactam, dimethyl sulphoxide, or tetramethylene sulphone. Examples of diamine (II) have, as R: H, C 2 H 5 , C 4 H 9 , C 6 H 5 , ClC 6 H 4 -, or CH 3 C 6 H 3 Cl-, and as X, -C 6 H 4 -, or C 6 H 4 -O-C 6 H 4 -, -C 6 H 4 -SO 2 -C 6 H 4 -, or -C 6 H 3 Cl-O-C 6 H 3 Cl-. In diamine (III), Ar<SP>1</SP> may be the divalent residue of benzene, diphenyl ether, diphenyl sulphide, diphenyl sulphone, diphenoxybenzene, bis-(phenoxyphenyl) sulphone, diphenyloxadiazole, benzanilide, or diphenyl dimethyl hydantoin. The dianhydrides and diamines are preferably present in equimolar quantities, to obtain products of M.W. # 10,000, but up to twice the molar quantity of one of the components may be employed. Thermal cyclization to the imide may be performed at 100-350‹ C. Chemical cyclization may be performed at 50- 200‹ C. in the presence of cyclohexyl carbodiimide or pyridine/acetic anhydride, The cyclization may be performed on films cast from solutions of polyamidopolycarboxylic acid Q. Uses.-Electrically insulating films, foils, filaments.
Patent GB-1413030-A (GB)
Title: High-strength atmospheric corrosion-resistant steel
IPC: C22C38/08
Filed: 1973-09-24
Abstract: 1413030 Atmospheric corrosion resistant steel LENIN KOHASZATT MUVEK 24 Sept 1973 44675/73, Heading C7A An atmospheric corrosion resistant steel of composition: - The steel may be used in building and mechanical applications.
Patent GB-1499363-A (GB)
Title: Electronic component
IPC: H01C1/14
Filed: 1976-09-14
Abstract: 1499363 Electrical connections ALMA ENTERPRISES Ltd 14 Sept 1976 [29 Oct 1975] 44759/75 Heading H2E [Also in Division H1] An electronic component, in particular a resistor 1, has terminal wires 3, 4 having loop portions 5, 6 at which the wire is flattened. This arrangement facilitates electrical connections to the component, e.g. by means of rivets whose heads engage in apertures 7, 8. The resistor 1 may be incorporated in the end cap of a capacitor (Figs. 2, 3, not shown).
Patent GB-1106219-A (GB)
Title: Method of and apparatus for cleaning and/or sanitising milking and other equipment
Inventor: CROWTHER HAROLD ALBERT HADLEIG
IPC: A01J7/02
Filed: 1965-10-25
Abstract: 1,106,219. Cleaning milking machines. HADLEIGH-CROWTHER Ltd. 25 Oct., 1966 [25 Oct., 1965; 22 April, 1966], Nos. 45106/65 and 17813/66. Heading A1M. [Also in Division F2] In a method of cleaning and/or sterilizing milking equipment, water is heated in a storage vessel and, under valve control, is passed through the equipment for a preliminary cleaning thereof, a sanitant then being introduced into more of the heated water and passed through the equipment which is subsequently flushed with fresh water, air being injected into the flowing medium at intervals. As described water from a float-controlled mains supply is heated in vessel 4 which is connected with the milk line 6 through a solenoid valve 8 and with a tubular container 11 for the sanitant through a further solenoid valve 17. The container 11 has in its base a venturi orifice 10 which projects into the milk line. The sanitant is drawn into container 11 from a reservoir (not shown) through tube 15, sight glass 13 and siphon tube 12 which is provided with an electrically controlled pinch valve 14. In operation when the water in vessel 4 reaches a predetermined temperature an electric timer is started which drives a bank of cams controlling the opening and closing, in a predetermined sequence, of valves 8, 17, 14 and a further solenoid valve 19 venting the apparatus to atmosphere. The valve 8 is opened to allow heated water to flow for a predetermined time at the end of which valve 14 opens to allow sanitant to pass into the water flowing from vessel 4. When a measured amount of sanitant, determined by the timer means, has been dispensed valve 14 closes and cold water passes into the milk line 6 for a predetermined time. Valve 19 then opens to vent the apparatus to atmosphere. Valve 19 is operated intermittently to inject air into the medium flowing through the milk line. In a modified apparatus the sanitant is added directly to the water in the storage vessel when it has fallen to a predetermined level.
Patent GB-1085310-A (GB)
Title: Fuel pump for motor vehicles
IPC: F02M1/00
Filed: 1965-10-25
Abstract: 1,085,310. Reciprocating pumps; fuelsupply systems. A. PIERBURG AUTO- und LUFTFAHRT-GERATEBAU KOMM-GES. Oct.25, 1965 [Nov.6, 1964], No.45108/65. Headings F1A and F1B. [Also in Division F2] A vehicle fuel pump has a stop valve in its delivery line to prevent the head of fuel in the fuel tank from acting on the carburetter when the pump is inoperative and the vehicle is on an incline. The valve 2' is biased closed by a spring- loaded diaphragm, the upper surface of which is subjected to the pressure in the pump suction line 11 via passage 16 and the lower surface to the delivery pressure. When the pump is inoperative, the head of fuel in the suction line acts on the upper surface and, via the pump valves 14, 15, on the lower surface of the valve diaphragm, so that the spring is effective to keep the valve closed. When the pump is operated, the pump suction acts on the upper surface of the diaphragm and the delivery on the lower surface to open valve 2' against the spring. The stop valve may be separate from the pump, Fig.2 (not shown).
Patent GB-1279901-A (GB)
Title: Shutter and flashlight actuating mechanism for a photographic camera
IPC: G03B15/04
Filed: 1970-09-23
Abstract: 1279901 Camera shutter actuating mechanisms HATTORI TOKEITEN K K 23 Sept 1970 [6 Oct 1969] 45280/70 Heading G2A The movement of a manual operable shutter release member 1 positions a changeover switch 34 in either a first or a second position corresponding to flashlight or natural light photography respectively as controlled by a movable part 33 being disposed in a first position or a second position respectively, the movable part being positioned in its second position whenever the ambient light level is above a predetermined value and/or whenever a flashlight device is absent, and being positioned in its first position whenever the light level is below the predetermined position and a flashlight device is present. The arrangement is thus such that an electronically timed exposure is obtained determined by the ambient light level unless the level is below the predetermined level and a flashlight device is present, in which event the shutter is electronically controlled for a preset time during which a flash is initiated. As illustrated, the shutter release member 1 and changeover switch 34 are each slidably mounted on pin and slot arrangements, a finger 4 on the release member engaging a projection 34c on the changeover switch and also the movable part 33, which is pivotally mounted on the changeover switch, when part 33 is in its second position as illustrated. Movable part 33 is moved to its first position either when a flashlight bulb sensing pin 43 is raised in the absense of a bulb, this signal being transmitted through levers 38, 44, or when lever 24 pivots counterclockwise. During a shutter release operation, a projection 3 of release member 1 pivots an operating arm 11 clockwise to free a driving lever 12. An electromagnet M, when energized, prevents rotation of driving member 12. The electromagnet is however de-energized whenever ambient illumination is above a predetermined value. Driving member 12 is thus free to rotate and pivots lever 24 so that the latter moves part 33 to its first position. Driving member 12 upon movement also open a connect switch formed by members 19, 20 whenupon the electromagnet is energized so that a tooth 17 of driving member 12 is held by an armature hook 22. Further movement of the shutter release member operates a shutter timing circuit, and at the end of the exposure interval, electromagnet M is again de-energized to allow rotation of driving member 12 which closes the shutter. The circuit, Fig. 4 (not shown) has a warning lamp which is lit when a flashlight photograph is to be taken, and a further lamp which indicates a satisfactory power source voltage.