baber/WOPTO huggingface dataset:
Patent GB-1332259-A (GB)
Title: Method for cross-linking copolymers of tetrafluoroethylene and propylene
IPC: C08L27/12
Filed: 1971-12-16
Abstract: 1332259 Tetrafluoroethylene/propylene copolymers ASAHI GLASS CO Ltd 16 Dec 1971 [30 Dec 1970] 58513/71 Heading C3P Tetrafluoroethylene/propylene copolymers are cross-linked by heating in the presence of an organic diperoxy compound. Allyl-group containing compounds or organic oximes may be added as cross-linking promoters as may conventional additives such as fillers, stabilizers and accelerators. The copolymer, cross-linking agent and other additives are mixed and the mixture is then heated. The cross-linked polymer can be re-heated to increase its strength. In examples tetrafluoroethylene/propylene copolymers were cross-linked using α,α<SP>1</SP>,bis(tbutyl-peroxy) p-diisopropyl benzene, 2,5-dimethyl -2,5 - di - (t - butyl peroxy)hexine - 3, 2,5 - dimethyl - 2,5 - di - (t - butyl peroxy) hexane, 2,5 - dimethyl - 2,5 - di - (benzoxyl peroxy) hexane, 2,5-di-(2-ethyl hexanoylperoxy) 2,5-dimethyl hexane, or di-t-butyl diperoxy phthalate as cross-linking agents. Triallyl cyanurate, triallyl phosphate, diallyl melamine, p,p-dibenzoyl benzoxime and p,p<SP>1</SP>-dibenzoyl benzoquinone dioxime were used as crosslinking promoters and other additives included magnesium oxide, carbon black, lead oxide, zinc oxide and calcium hydroxide.
Patent GB-1199960-A (GB)
Title: A Method of Producing a Semiconductor Device
IPC: H01L25/07
Filed: 1967-12-28
Abstract: 1,199,960. Semi-conductor devices. SIEMENS A.G. 28 Dec., 1967 [30 Dec., 1966], No. 58964/67. Heading H1K. A number of semi-conductor devices each comprising a plurality of series connected diodes forming a column are produced by mechanically and electrically connecting together the faces of a plurality of wafers of semi-conductor material, each wafer containing a PN junction, to form a stack which is then sawn into columns by two intersecting series of parallel cuts. The wafers may be of silicon and the faces may be soldered together or joined by means of a conductive lacquer. The wafers may have electrodes of nickel, gold or silver. The electrode on one face of each wafer may be gold and the electrode on the opposite face may be of silver so that adjacent wafers of the stack may be connected together by diffusion soldering. The stack of wafers may be bonded to an auxiliary device so that after the first series of parallel cuts the strips are retained in their relative positions and may be rotated through a right angle to position them for the second series of cuts. The columns are detached from the auxiliary device, connected to supply conductors and etched. Each column may be mounted in a housing which may itself be covered with plastics material. The columns may be etched before separation from the auxiliary device instead of afterwards.
Patent GB-1249353-A (GB)
Title: Arc lamp
Inventor: RICHTER JOHN FRANKLIN
IPC: H01J61/98
Filed: 1968-12-11
Abstract: 1,249,353. Discharge lamps. VARIAN ASSOCIATES. 11 Dec., 1968 [18 Dec., 1967], No. 59014/68. Heading H1D. An arc lamp comprising an envelope including a ceramic cylinder 10 which is hermetically closed at each end, a sealed chamber 44 confining the vapour of a metal from the group Cs, Na, K or Rb or combinations thereof disposed within the envelope and two electrodes 38, 48 defining an arc gap in chamber 44, is provided with an arrangement, e.g. a resistor wire 42, wound round part of electrode 38, to vaporize the metal filling in the chamber and permit an arc to be struck across the gap. As shown, resistor wire 42 is connected between electrode 38, which extends outside the envelope to form a terminal, and sleeve 32 which, with ceramic ring 36, ring 24 and paraboloidic reflector 30, seals one end of the ceramic cylinder 10. An infra-red transparent window 20 and ring 12 with terminal connection 14 seal the other end of the ceramic cylinder 10, and arcuate portions 50 provide electrical connection from ring 12 to electrode 48. Columbium caps 46 seal electrodes 38, 48 within sapphire tube 44 to form a short arc gap, and the vapour pressure within the tube is typically 10 atmospheres.
Patent GB-1428499-A (GB)
Title: Process for producing n-phosphonomethyl glycine and salts and esters thereof
IPC: C25B3/23
Filed: 1973-12-20
Abstract: 1428499 Preparing N-phosphonomethyl glycine and derivatives thereof MONSANTO CO 20 Dec 1973 [21 Dec 1972 6 Aug 1973] 59083/73 Heading C2P N-Phosphonomethyl glycine and its derivatives of the formula wherein M, M 1  and M 2  are each individually hydrogen, alkoxyalkyl groups, alkoxyalkoxyalkyl groups, alkyl groups of from 1 to 18 carbon atoms, alkali metal, alkaline earth metal, ammonium or organic ammonium provided that at least one of M, M 1  and M 2  is hydrogen, alkali metal or alkaline earth metal, are obtained by subjecting an aqueous electrolytic medium containing an N-organo-N-phosphonomethylamino acetic acid compound of the formula wherein R is selected from allyl, halogen-substituted allyl, benzyl, halosubstituted benzyl, 2,2,2-triphenylethyl, diphenylmethyl, 1,2- or 2,2-diphenylethyl, -CH 2 CH 2 OH, -CH 2 NO 2 , -CH 2 CN, -CH 2 C(O)C n H 2n+1 , -CH 2 -CH 2 OR<SP>1</SP>, -CH 2 Cl, -CH 2 CHO, -CH 2 CH 2 NR<SP>1</SP>R<SP>11</SP>, -CH 2 OR<SP>1</SP>, -CH 2 CCl 3 , CH 2 C(O)NR<SP>1</SP>R<SP>11</SP>, M 3 OOCCH 2  or (M 3 O)(M 4 O)P(O)CH 2 - wherein R<SP>1</SP> is C 1 -C 6  alkyl, R<SP>11</SP> is H or is as defined for R<SP>1</SP>, M 3  and M 4  are as defined for M, M 1  and M 2 , and n is 1 to 6 to an electromotive force to convert the amino acetic acid compound to N-phosphonomethyl glycine or derivative thereof. Preferably a 2% to 30% by weight solution of the compound II dissolved in 1À0 to 37% by weight aqueous HCl is charged into an electrolytic cell maintained at 25 to 110 C. and having noble metal, graphite or carbon electrodes and a current passed through at between 1 and 700 ma./cm.<SP>2</SP> for a time sufficient to effect the electrolytic conversion. The resultant solution may be vacuum evaporated to remove the aqueous HCl medium and volatile by-products and the residue dissolved in water and recovered by recrystallization on cooling the solution. Other acids, or bases or salts of such bases, may also be used to make the electrolytic solution conductive and a formaldehyde-scavenging agent, e.g. urea may be included in the medium.
Patent GB-1201080-A (GB)
Title: Electronic control device
IPC: F02D41/30
Filed: 1967-12-29
Abstract: 1,201,080. Fuel injection control. SOCIETE DES PROCEDES MODERNES D'INJECTION SOPROMI. Dec.29, 1967 [Dec.30, 1966], No.59197/67. Heading G1N. [Also in Division H3] The injection times of an I. C. engine are controlled by the pulses at S, Fig. 1 (not shown) of a bi-stable (10) which is triggered on by a negative pulse (at E) according to engine rotation and off by a time-base circuit (50) which includes a first transistor (60) and capacitor (90) and has its period controlled by a circuit including at least one further transistor (53) and being responsive to engine speed (at 61, 61). The first transistor is a unijunction 1360, Fig.14, the capacitor 1390 being connected to its emitter and arranged to be charged from terminal 1303 which receives a positive voltage from a point (13) in the bi-stable when the latter is triggered on. When the unijunction emitter reaches a voltage depending upon the positive base voltage, the capacitor discharges through the unijunction transistor and turns off the bi-stable. The capacitor charge time is made to depend upon three circuits: (a) the first including transistor 1353 (53), and resistors 1352, 1383, 1380, 1351 which control the charging current in dependence on a speed-dependent voltage applied via an extra transistor 1363 and a potentiometer 1356, from a terminal 1361<SP>1</SP>; (b) the second including a transistor 1300 which controls the voltage at the junction of resistors 1351, 1380 towards which the capacitor is charged, in dependence upon the same speed signal, applied to the transistor 1300 via a further potentiometer 1346, the effect on charge time being opposite to that achieved in (a); (c) the third including a transistor 1310 which controls the positive base voltage of the unijunction in dependence upon a further speed signal at terminal 1315. Zener diodes are incorporated, if desired, to produce threshold operation of the controlling circuits (a) or (b). The unijunction may be replaced by two npn transistors (360, 360<SP>1</SP>,) Fig.2, (not shown). The pulses obtained from the engine to trigger the bi-stable may be rectified Fig. 5 (not shown) to produce the required D.C. speed signal. Transient over-injection, e.g. for acceleration is achieved by alternative diode and capacitor circuits (HGS 7, 8, not shown) connected to a potentiometer (514, or 514<SP>1</SP>) attached to the accelerator pedal, the circuits producing temporarily increased voltages on the positive base of the unijunction transistor. Matching of different cylinders is achieved by replacing the resistor 1351 and its series diode by a circuit Fig.18 (not shown) which includes adjustable potentiometers and resistors for each cylinder or group of cylinders, and respective thyristors controlled by the distributor used to supply the bi-stable output in turn to the injection valves. A unit 70, Fig.1 (not shown) is said to be responsive to other engine operating parameters, to vary the unijunction positive base voltage.
Patent GB-1435140-A (GB)
Title: Method for producing high density steel powders
IPC: B22F9/08
Filed: 1973-12-21
Abstract: 1435140 Decarburizing steel powder K YOSHIZAKI 21 Dec 1973. [25 Dec 1972] 59520/73 Heading C7D Atomized carbon or alloy steel containing not more than 0.5 wt per cent of oxygen is  heated at 600-1250C in inert gas, particularly argon or nitrogen, to yield a decarburized and deoxidized powder containing not more than 0.6% carbon. Preferably the initial carbon content does not exceed 0.38%, particularly not more than 0.26% and the weight ratio C:O lies within the range 0.375:1 to 0.75:1. The initial oxygen content may be in the range 0.2-0.35% and the final content less than 0.15% while the final carbon may be below 0.02%. If the initial carbon content is inadequate powdered carbon may be mixed with the steel.
Patent GB-1483194-A (GB)
Title: Methods of securing cable clamps on cables
IPC: F16G11/02
Filed: 1974-12-13
Abstract: 1483194 Clamping cables D H TAYLOR 13 Dec 1974 [21 Dec 1973] 59586/73 Heading D1T A method of securing a cable clamp onto a cable comprises the attaching together of two tubular cable clamp parts 1, 3 in end to end relationship by adhesive or by the interengagement of formation 6, 7 formed on the two parts such that the two parts are restrained against relative rotational movement, passing the cable 9 through the two attached clamp parts 1, 3 and compressing the two clamp parts onto the cable thereby causing the two parts to coalesce by cold flow action into a single rigid body fast on the cable. In Fig. 1 the part 1, which may be of aluminium alloy, has a through bore of elongated cross-section and a pair of recesses 6 at one end. In Fig. 2 the part 3, which may be of steel, has projecting pegs 7 that enter the recesses 6. The part 3 may be of truncated shape externally and have a circular through bore 8. The bores in the two parts may be rounded off at their ends as at 4. The parts 1, 3 may be of similar or dissimilar materials, for example of aluminium, copper, steel, stainless steel, metal alloys or plastics.
Patent GB-1330589-A (GB)
Title: Compound of rhodium and molybdenum and method of manufacture
IPC: C01G55/00
Filed: 1971-12-29
Abstract: 1330589 Rhodium molybdate SOLVAY ET CIE SA 29 Dec 1971 [13 Jan 1971] 60391/71 Heading C1A A novel compound Rh 2 MoO 6  possessing an electrical conductivity of 10<SP>-4</SP> ohms cms.<SP>-1</SP> and an activation energy of 0À04 eV is prepared from a Rhodium salt and Molybdic oxide. The mixture is ground, compacted, heated in an oxidizing atmosphere first at 500 C. and then at 650 C., to form porous discs which are then ground to a powder and excess molybdic oxide removed therefrom. X-Ray data of the compound is given.
Patent GB-1384069-A (GB)
Title: Lubricant
IPC: C07D303/04
Filed: 1971-12-29
Abstract: 1384069 Higher oxiranes; diol hemiesters and hemiethers DAICEL Ltd 29 Dec 1971 [30 Dee 1970 17 Nov 1971] 60621/71 Heading C2C [Also in Division C3] An oxirane of Formula (I) where one of R and R<SP>1</SP> is hydrogen and the other is a straight saturated C 28-42  alkyl radical, together with other compounds, is made by reacting a mixed α-olefin with peracetic acid. A hemiester and a hemiether of a vie. diol corresponding to the above oxirane is made by reacting the oxirane with acetic acid and ethanol respectively. The compounds are used as lubricants for thermoplastic resins.
Patent GB-1198380-A (GB)
Title: Defrosting Control Circuit for Electric Refrigerator
IPC: F25D21/00
Filed: 1968-12-20
Abstract: 1,198,380. Defrosting circuits. MATSUSHITA ELECTRONICS CORP. 20 Dec., 1968 [23 Dec., 1967], No. 60721/68. Heading H2H. [Also in Division F4] A defrosting control circuit for an electric refrigerator has a first transistor 1 for triggering a solid state switching element e.g. a thyristor 3, and a second transistor 2 for resetting the circuit on completion of a defrosting operation, the second transistor base being supplied with a determined potential while the element is conductive and a temperature detecting element e.g. a thermistor 10, sensitive to the temperature inside the freezer, arranged to supply a base bias to one of the transistors during the defrosting operation. Momentary closure of a pair of manually or time-switch operated contacts 8 renders transistors 1, 2 conductive which fires a thyristor 3 energizing a defrosting heater 6, the voltage across which maintains the transistors conductive on release of the switch 8. A rise of temperature of the freezer decreases the resistance of thermistor 10 which at a given point resets the circuit into a non-conductive condition. In another arrangement. Fig. 2 (not shown), the contacts 8 and thermistor are connected to the base of transistor 2. The heater 6 may be replaced by a valve through which a hot gas may be supplied to the freezer. The arrangement is stated to completely defrost a freezer irrespective of the amount of frost accumulated.
Patent GB-1326750-A (GB)
Title: Mirror mountings
IPC: A47B67/00
Filed: 1970-12-23
Abstract: 1326750 Mirror frames ETABS ALLIBERT 23 Dec 1970 [30 Dec 1969] 61062/70 Headings A4V and A4X A mirror frame comprises a frame or panel 2 having top and bottom flanges 4a, b with turnedover lips 5 and 6 respectively to form recesses 7, 8 receiving opposed edges of the mirror 3, and a resilient, longitudinally compressible member 12 positionable through an aperture 10 in flange 4a, so that a part of it is located in the aperture with wings 12a, b abutting the undersurface of flange 4a at the sides of the aperture, to lock the mirror against vertical movement. Side flanges 4 are provided and ribs 9 may be provided in the lower recess 8. The panel 2 and member 12 may be made of plastics material. The height of the mirror is less than the distance between the undersurface of flange 4a and the top of lip 6. The panel 2 may be a door of a cupboard such as a bathroom cabinet.
Patent GB-1217360-A (GB)
Title: Improved process for the pasteurization of egg whites
IPC: A23B5/18
Filed: 1968-12-24
Abstract: 1,217,360. Pasteurizing egg whites. STAUFFER CHEMICAL CO. 24 Dec., 1968 [2 Jan., 1968], No. 61293/68. Heading A2D. Egg whites are preserved by raising their pH by 0.5-1.5 units above their natural pH; heating them to destroy natural catalase, e.g. to a temperature of 115-130F., adding 0.01-1.5% by weight of a peroxide; and then pasteurizing by reheating, e.g. to a temperature of 115-130F. for 0.5-5 minutes. Following pasteurization, the egg whites are quickly cooled to 40F. and catalase may be added to destroy the peroxide. The pH is raised by the addition of sodium, potassium, ammonium or calcium hydroxides, sodium carbonate, sodium phosphate, or mixtures thereof. The peroxide exemplified is hydrogen peroxide. The pH of the pasteurized egg whites may be readjusted to their natural level.
Patent GB-614138-A (GB)
Abstract: 614,138. Jet-propulsion plant. HAENNIG, J. E., and DELANNE, M. H. July 9, 1946, No. 20517. Convention date, Sept. 28, 1945. Addition to 614,080. [Class 110 (iii)] A gas-turbine plant for the jet-propulsion of aircraft, comprises an axial-flow compressor 1, two or more combustion chambers 2 delivering to an annular chamber 6, an annular nozzle 7 with slightly inclined blades 12 at its discharge end, turbine rotors 8, 10 and a propulsion jet. The annular nozzle provides for the complete expansion of the gases in its unbladed portion and is cooled by water circulating in pipes 11. The compressor and turbine shafts 13, 14 are united by an elastic coupling 17 which also provides for endwise expansion. The shafts are supported in bearings 18, 19, 20, 21, which are lubricated by oil pumped from sumps by separate pumps 22, 23, 25. Thrust bearings 15, 16 are located in the cooler parts of the plant. The combustion chambers are. encased in heat-insulating material..
Patent GB-1283969-A (GB)
Title: New disperse dyes of the 5-aminopyrazole series
IPC: A47B9/00
Filed: 1969-12-19
Abstract: 1283969 Pyrazole dyes BADISCHE ANILIN- & SODA-FABRIK AG 19 Dec 1969 [20 Dec 1968] 61887/69 Heading C4P Disperse 5-aminopyrazole dyes have the general formula wherein D denotes the radical of a diazo component of the benzene, thiazole, thiadiazole, benzothiazole, benzoisothiazide or aminoindazole series; A is H, Cl, CN, methyl or methoxy and B is H, Cl or methoxy. The dyes are prepared conventionally by diazotization and coupling and give yellow, orange and red shades on synthetic textile materials.
Patent GB-642473-A (GB)
Abstract: 642,473. Attaching wall board &c. linings. WALKER, H. Jan. 6, 1948, No. 358. [Class 20(iv)] Wall &c. boards A, forming a spaced lining for roofs or walls, are secured at the edges between spring clips B which do not have to be rotated into the operative position and which engage the upper or inner faces, and flanged trough shaped members C which engage the lower or outer faces and come substantially flush with the boards, the clips and trough shaped members being secured to purlins &c. E by attaching devices so that the panels are spaced at any distance therefrom, and the trough shaped members being subsequently attached to members which secure the spring clips to the attaching device. The clips and trough shaped member may be secured as in Fig. 1, by a bolt G which passes through the roofing sheet F, engages a tapped hole in an angle clamp H at the bottom of the purlin, and is secured by nuts G1, G2. To further space the boards the bolt may be lengthened and an extra nut fitted above the clip. A closing channel D fits into the trough and hides the nuts &c. As shown in Fig. 2 the trough and clip may be attached by a bolt J to a purlin strap K. When the purlins E are at some distance the trough &c. may be connected to an arm N fitted to a cranked end of a member M the other cranked end of which is pivotally attached to a purlin strap L as in Fig. 4. In the construction shown in Fig. 5 an arm O is pivotally attached to a purlin bolt G and attached at the other end to a half clip B1 and trough C which receive the end boards A and bridge the gap to the wall P. If two or more such arms are used the clips and trough can be moved with a parallel motion into the desired position. The board edges which do not rest on the troughs C are supported by angle sections S, see Fig. 4, which rest on the flanges C1, and if the panels are inclined or vertical the lowermost sections S are attached by locking plates T entered in slots in the member C. The holes in the top hat member are preferably made larger than the diameter of the bolts to permit rocking of the member before the nuts are tightened to aid the introduction of the boards.
Patent GB-676020-A (GB)
Abstract: 676,020. Measuring angles. O'CONNOR, H. Aug. 8, 1950 [Aug. 9, 1949], No. 20659/49. Class 97 (iii). [Also in Group XXII] An apparatus for checking angular measurements comprises a base 10, Fig. 5, having a ground upper surface 10a, a pair of arcuate members 15 which are rotatable relatively to the base, are calibrated at 15b in degrees, and are fixed to the underside of a platform 16 with their curved surfaces 15a resting on the upper surface of the base and arcuate surfaces 14 to contact the surfaces 15a, their radius being that of the largest circle which can be inscribed in the space bounded by the curved surfaces 15a when in contact with the base 10, and by the base, and the tangent at right-angles to the base. A pair of triangular brackets 12 fixed by screws 11, Fig. 1, to the side edges of the rectangular base 10 provide bearings adjacent their lower corners for a spindle 13 on which rollers 14 are mounted. The semi-circular members 15 are pivoted by aligned spindles 151 mounted in the apices of the brackets 12. Windows in the brackets enable the calibrations 15b to be viewed in co-operation with an index 17, and guide pegs 20b, 20a, on the brackets engage arcuate slots 15c, 15d in the members 15, knurled nuts 21 being provided on the pegs 20a to enable the members 15 to be locked to the brackets 12. Rotatably-mounted in the centre of platform 16 is a circular turn-table 18 its periphery being provided with calibrations to co-operate with a scale engraved in the upper surface of the platform 16. A dependable work-holder 19 of the Morse-taper type is fixed to the centre of the turn-table and extends through a hole in the platform, its outer periphery being screw-threaded to receive a knurled nut 191 which may lock the turntable in a set position. The platform 16 may have a mounting for an angle gauge and in the smaller sizes of apparatus may be elongated and provided with adjustable end portions so that the surface of the platform may be extended to meet the horizontal plane containing the ground surface 10a. Modifications are described in which arcuate surfaces are employed instead of the rollers 14, the turn-table 18 is dispensed with, only one of the members 15 is calibrated as at 15b and a single centrally-disposed member 15 is used instead of the pair of members. In the embodiment described in the Provisional Specification the rollers are mounted on portions of the spindle projecting from the brackets and the semi-circular members are pivoted at their centres to the upper ends of a pair of arms whose lower ends are pivoted to the spindle.
Patent GB-2007638-A (GB)
Title: Explosive compositions
IPC: C06B47/14
Filed: 1978-07-05
Abstract: Water-in-oil explosive compositions are provided which are No. 6 cap sensitive in cartridges a having diameters of 1.25 inches and less and which contain from about 3.5% to about 8% by weight of a hydrocarbon fuel including an emulsifier, from about 10% to about 22% by weight of water, from about 0.25% to about 15% by weight of closed cell void containing materials, from about 65% to about 85% by weight of inorganic oxidizer salt, optionally, up to about 15% by weight of an auxiliary fuel, and no explosive ingredients or detonation catalysts. The inorganic oxidiser salts are ammonium, alkali metal, and alkaline earth metal nitrates and perchlorates; other ingredients are various specified oils, waxes, and water-in-oil emulsifying agents, dinitrotoluene, aluminium powder, and glass microbubbles.
Patent GB-2001422-A (GB)
Title: Heat exchangers
IPC: F24S90/00
Filed: 1978-07-20
Abstract: A heat exchanger (2) comprises two independent tubular coils (14 and 18) which are thermally connected to each other as by heat conductive fins or plates (22). Heat may be transferred directly between the fluids in the tubular coils, between ambient air and fluids in the tubular coils, or between fluids in the tubular coils with air as an intermediate heat exchange medium. One of the fluids may be the refrigerant of a heat pump circuit; and the other water from a hot water storage system. The storage system may include a solar heater. <IMAGE>