baber/WOPTO huggingface dataset:
Patent GB-1126792-A (GB)
Title: Improvements in or relating to packaging
IPC: B65B11/26
Filed: 1965-10-11
Abstract: 1,126,792.. Creasing paper. CANADIAN INTERNATIONAL PAPER CO. 11 Oct., 1965 [9 Oct., 1964], No. 42959/65. Heading B6J. [Also in Division B8] In an apparatusfor wrapping a number of articles A (see Division B8) a paper wrapper feeding assembly comprises a supporting surface 101 on which are guides 105, 105a, 107 on to which the paper is placed by an operator. A single sheet of paper W is advanced between creasing rollers 117; on a shaft 115 and complementary rollers 133 on a shaft 129. A gluing- roller (or rollers) 139 also is (are) provided on the shaft 115. The shafts 115, 129 are meshed together by gear-wheels 135 and are driven by an electric motor. The shafts 115, 129 are spring biased together and the biasing is adjustable for various degrees of creasing. A pair of endless chains (141), (141a), Fig. 6 (not shown), are located beneath the surface 101 of the wrapper feed assembly in channels (151), (151a), Fig. 6a (not shown). Mounted on each of the chains (141), (141a) is a co-operating pair of pivoted abutments (149), Fig. 5 (notshown), which are turned to protrude above the surface 101 when they abut a cam track (159), Fig. 4 (not shown). Thus a single wrapper W is engaged by the pair of abutments (149) and fed beneath guide plates 118 and the creasing rollers 117. In a modification, the wrappers are made of corrugated cardboard, Fig. 39 (not shown), and are fed by an apparatus (H), Fig. 33 (not shown). The wrappers are fed from a stack (902), Fig. 35 (not shown), by suction.cups (110) through creasing rollers 117 similar to. those of the first embodiment.
Patent GB-964266-A (GB)
Title: Improvements in and relating to polyurethane resins
IPC: C08G18/48
Filed: 1961-12-01
Abstract: A process for the production of flame-resistant polyurethane foams comprises reacting a polyether having at least two hydroxyl groups and a molecular weight from 250 to 5000 and an organic polyisocyanate or polyisothiocyanate in the presence of a catalyst, a blowing agent and, as a flame-proofing additive, 0.5 to 10% by weight, based on the weight of the polyether and polyisocyanate or polyisothiocyanate, of tris (2,3-bibromopropyl)-phosphate.  Antimony trioxide may be used in conjunction with the phosphate. Water and fluorocarbons are specified blowing agents. Suitable polyethers are reaction products of alkylene oxides with water, glycols, polyols, glycosides, sucrose, di, tri and tetraphenylol compounds, mono- and polynuclear and fused aromatic polyamines, novolaks and acyclic polyamines.  Polyfunctional compounds such as aliphatic polyols can be blended with the polyethers before the reaction. Catalysts listed are stannous acylates, alkoxides, phenoxides and cresoxides; dialkyl tin carboxylates, chlorides or oxides and trialkyl tin hydroxides.  A siloxaneoxyalkylene copolymer can be used as an emulsifying agent. In examples of the preparation of foams various amounts of the tris (2,3-dibromo propyl) phosphate together in some cases, with antimony trioxide are added to the reaction mixture.  This comprises polyol mixture, prepolymer prepared from the polyol and excess tolylene diisocyanates, surfactant, dibutyl tin dilaurate, silicone and trichlorofluoromethane. Polyols used are (1) to (3), (5) and (6) a propylene oxide adduct of 1,1,3-tris-hydroxyphenyl, propane mixed with (1) hexanetriol, (2) and (5) glycerol/propylene oxide condensate, (3) di-ethylenetriamine/propylene oxide condensate, (6) 1,2,6-hexanetriol; (4) sorbitol/propylene oxide condensate; (7) methyl glucoside/propylene oxide condensate; (8) 4,41-diaminodiphenylmethane/propylene oxide.  In (7) N,N,N1,N1-tetramethyl-1,3-butane diamine is also present as a catalyst. Specifications 666,732, 701,794 and 804,369 are referred to.
Patent GB-430039-A (GB)
Abstract: 430,039. Centrifugal fans. MARKS, L. V., 60, Lullington Garth, Woodside Park, North Finchley, London. Jan. 11, 1934, No. 1087. [Class 110 (i)] The impeller discs of a centrifugal fan converge towards each other so that the cross sectional area on a cylindrical surface concentric with the discs remain constant. Baffle plates 4 are provided between the impellers 3.
Patent GB-1089719-A (GB)
Title: Apparatus for spraying materials in a prilling process
IPC: B01J2/02
Filed: 1965-10-11
Abstract: <PICT:1089719/C1/1> In a prilling or granulating process molten material from container 10 is introduced under pressure into a series of chambers 13 and sprayed through nozzles (see Fig. 4, not shown), in the bottom walls of the chambers, into a heated chamber 30. The molten drops thus formed fall into a cooling chamber 33 where they solidify to form granules and are collected by a suitable device. The heated chamber 30 prevents premature cooling of the material thus ensuring that no clogging or the like occurs and is heated by, e.g., an electric coil 31 or by a suitable heating fluid running through its walls.  Materials suitable for use in the apparatus are fatty acids, wax/polymers, e.g. polyethylene, pentachlorophenol, fatty alcohols, e.g. myristyl alcohol, wood resins, sulphur, pitch, mixtures of ammonium nitrate with chalk or ammonium phosphate, amides, glycols, coal tar resin and caustic soda.
Patent GB-1237002-A (GB)
Title: Monostable trigger circuit
IPC: H03K3/284
Filed: 1968-09-11
Abstract: 1,237,002. Semi-conductor monostable circircuits. INTERNATIONAL STANDARD ELECTRIC CORP. 11 Sept., 1968 [14 Sept., 1967], No. 43144/68. Heading H3T. The duration of the unstable period of a monostable circuit is controlled by the switchoff delay in at least one three-electrode semiconductor element. A trigger pulse applied at 12 or 13 to a bi-stable circuit 1, 2 switches the circuit to a state in which transistor 2 is off. Transistor 3 switches on and after a time delay while charge carriers stored in the base leak away, transistor 4 switches off. The resulting output pulse from 4 restores the bi-stable circuit to its initial state. A potentiometer 20 and a further resistor which may be connected to the base of 3, adjusts the rate of leakage of the base charge. The coupling resistors 14 and 15 can be replaced by diodes or emitter followers which provide a large forward base current but present a high resistance to the reverse base current. In Fig. 4, not shown, transistor 4 is omitted and the delayed feedback is provided from 3 to the base of 1, transistors 2 and 3 effecting the delay.
Patent GB-1155830-A (GB)
Title: Improvements in and relating to Needle Cams For Knitting Machines
Inventor: ROTHE DIETER
IPC: D04B15/32
Filed: 1967-09-22
Abstract: 1,155,830. Knitting - machines. STRICKMASCHINENBAU KARL-MARX-STADT, VEB. 22 Sept., 1967, No. 43168/67. Heading D1C. A clearing cam for acting on the needles or jacks of a knitting machine dial or cylinder comprises two parts 5, 6 pivoted on a common axis, the one 5 being movable in a recess in the other 6 raises the butts to tuck level, the other has a working surface for raising butts to clearing level. The tuck part has a projecting upper end which overlaps the working surface of the clearing part, so that it must be raised to the operative position shown before, or with, the other part. The tuck part has also to be lowered to an inoperative position in a recess in part 2 after, or with said other part.
Patent GB-1189997-A (GB)
Title: Polyether-Urethanes
Inventor: LEWIS JOHN YOUNG
IPC: C08G18/66
Filed: 1966-09-28
Abstract: 1,189,997. Polyetherurethanes. PFIZER Ltd. 27 Sept., 1967 [28 Sept., 1966], No. 43233/66. Headings C3C and C3R. Liquid polyetherurethane prepolymers having a free isocyanate content are prepared by reacting, in the absence of a catalyst: (A) an aromatic diisocyanate; (B) a linear, liquid alpha-omega glycol having an hydroxyl equivalent weight below 250; and (C) a liquid polyoxyalkylene triol having an hydroxyl equivalent weight of at least 250, the ratio of isocyanate groups in (A) to hydroxyl groups in (B) plus (C) being greater than one and the proportion of triol (C) to glycol (B) being such that the reaction product is a stable liquid, i.e. a liquid which does not crystallize within 24 hours at ambient temperatures. The compounds (A), (B) and (C) are those conventionally used in the art. Especially preferred as glycol (B) is diethylene glycol which may be used such that the weight ratio of triol (C) to diethylene glycol is at least 4 to 1, preferably 6 to 1. The reaction between (A), (B) and (C) is preferably carried out at temperatures of 55‹ to 90‹ C. Elastomers may be prepared from the prepolymers by reaction with further amounts of glycol (B) and/or triol (C) in the presence of an organometallic catalyst such that the ratio of isocyanate groups to hydroxyl groups is in the range of 0À95 to 1 to 1À2 to 1. Alternatively the prepolymer may be reacted with other compounds containing two or more hydroxyl and/or primary amine groups or may be dissolved in a solvent with a tertiary amine catalyst and allowed to cure by reaction with moisture in the atmosphere. Microcellular elastomers may be prepared from the prepolymers by reaction with further amounts of (B) and/or (C) in the presence of small amounts of air and/or water and, if desired, a nucleating agent. The additional triol (C) may be partially or entirely replaced by an inert plasticizer such as phthalic acid esters and chlorinated hydrocarbons. Numerous examples are given of the polyetherurethane prepolymers and elastomers prepared therefrom.
Patent GB-1291328-A (GB)
Title: Improvements in or relating to a machine for coating cylindrical objects
Inventor: MALIVOIR R M
IPC: B05B13/02
Filed: 1970-09-11
Abstract: 1291328 Spraying pipes CENTRE DE RECHERCHES DE PONT-A-MOUSSON 11 Sept 1970 [2 Oct 1969] 43571/70 Heading B2L [Also in Division C7] A pipe T supported by cradles 32, 43 fixed to carriages 6, 7, interconnected by a rod 8, is moved, and rotated past a spray gun 18 mounted in. a moveable housing 5. The carriages slide in a groove 4 in a beam 1, and the carriage 6 is driven by an endless belt 34 which engages hooks 33. Dust and gases are removed from the housing 9 through a duct 12. In a modification, two guns may be used and two pipes may be coated simultaneously.
Patent GB-1282168-A (GB)
Title: Method of vapour growing ternary epitaxial films
IPC: C30B25/00
Filed: 1969-09-04
Abstract: 1282168 Semi-conductors INTERNATIONAL BUSINESS MACHINES CORP 4 Sept 1969 [27 Sept 1968] 43734/69 Heading H1K [Also in Division C7] A cooled substrate 58 of, e.g. Cd-Te, Pb-Te or Sn-Te is coated with a ternary epitaxial film of a Group II-VI compound, e.g. Cd-Te-Hg by heating the elements and passing the vapours with a transport gas, which does not react with the vapours, e.g. hydrogen, argon or a mixture thereof, over the substrate, the temperature of the vapours being such as to inhibit binary reactions. In an example hydrogen from a source 13 is first vented through the apparatus, and the substrate back-etched, during this operation, the source furnaces 10, 12 are switched on and the heating coil 52 is moved against the coil 51 and both heated to the same temperature. The coils are then separated and with the sources furnaces 10, 11, 12 in operation vapours pass through the mixing furnace 14, having baffles 47, 48, 49, to the substrate. After deposition, the source furnace 12 is left on to prevent Hg volatilizing during cooling.
Patent GB-1449138-A (GB)
Title: Oscillators
IPC: H03K3/30
Filed: 1972-09-23
Abstract: 1449138 Transistor oscillators LUCAS ELECTRICAL Ltd 4 Sept 1973 [23 Sept 1972] 44129/72 Heading H3T In a blocking oscillator as shown, the transformer 16, 18 couples the collector to the emitter of transistor 15, which is initially biased on by diode 13 and is driven into saturation by the feedback, whereupon the collector and base currents increase and decrease respectively until T15 comes out of saturation and is regeneratively turned off. The transformer steps down the collector voltage changes. The rate of rise of the collector current is limited by the primary inductance 16 and the induced voltage in winding 18 is thereby fixed. Resistor 17 then determines the constant emitter current, and because the collector current rises, the base current must fall until saturation ends.
Patent GB-1072137-A (GB)
Title: Process for the manufacture of blue acid anthraquinone dyestuffs
IPC: C09B62/505
Filed: 1964-10-29
Abstract: Blue acid anthraquinone dyestuffs of the general formula <FORM:1072137/C4-C5/1> wherein R is H or COOH are prepared by esterifying the corresponding hydroxyethyl sulphone preferably at 75 DEG  to 100 DEG  C. with amidosulphonic acid in the presence of an inert solvent, e.g. dimethylformamide, dimethylsulphoxide, quinoline, dimethylaniline, pyridine, picolino or butidine or mixtures thereof.
Patent GB-1522654-A (GB)
Title: Process for the aseptic packing of products and machine employing said process
IPC: B65B55/02
Filed: 1975-10-28
Abstract: 1522654 Packing liquids PONT A MOUSSON SA 28 Oct 1975 [8 Nov 1974] 44263/75 Heading B8T [Also in Division B5] A machine, e.g. for packing milk comprises an enclosure 1 defining a space which is swept by a sterile air stream, means for producing the air stream and, disposed within the space, a station 10 for producing containers R from a hot-formable material, a station 12 at which the containers are filled and a closing station 13. The air stream is drawn downwardly through the enclosure 1 by a fan (7), Fig. 2 (not shown), the air being recirculated through a pipe (8) to an upper chamber 3, whence it re-enters the enclosure 1 through a pre-filter 4a and a filter 4 for removing bacteria, &c. The containers 10 are formed in a mould 19, Fig. 3, comprising halfmoulds 20, 21, by extrusion-blowing heads 17. After moulding, the half-moulds 20, 21 are separated by a jack 22, and the containers R are released by heads 37. The containers R are then located on a plate 63 forming part of a transfer device, cutting means 157 being provided to separate them from the following blanks P to be moulded. The containers R are gripped by jaws 64, 65 of the transfer mechanism, Fig. 8 (not shown), and are advanced past a fixed cutter 72 which crops the scrap material D around the container necks, the jaws 64, 65 being reciprocated such that they grip and move the containers R during the forward stroke, and retract and release them during the return. The containers R are then located below filling heads 12, whereupon ball valves 75 are opened by electromagnets 76 to discharge the milk, &c., into the containers R through spouts 78. During filling the containers R are supported on plates 99 borne by parallelogram linkages 96, 100 loaded by springs 104, a proximity detector 108 co-operating with a strip 107 depending from a counterweight 97 to terminate filling in each case when a preset quantity has been dispensed.  The transfer mechanism then moves the containers R to the closing station 13. Closures are cut from a band (112), Fig. 7 (not shown), fed into the enclosure 1 through a tank (110) of bactericide, by a cutter (120) and are heat-sealed to the containers R by pressing means (121). For disinfecting the filling heads 12 before or after use, a manifold 93 is attached to the spouts 78 via tube sections 87 and collars 91. A rod 92 is actuated to raise the spouts 78 and hence, via finger portions 82, to raise the balls 75 to open the valves, and washing fluid is applied through the manifold 93.
Patent GB-1059565-A (GB)
Title: Improvements in or relating to frequency matching means
Inventor: GRIMSDALE RICHARD LAWRENCE
IPC: H02J3/42
Filed: 1962-11-23
Abstract: 1,059,565. Synchronizing alternators. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 15, 1963 [Nov. 23, 1962], No. 44456/62. Heading H2H. A circuit for synchronizing an alternator to a supply comprises means for producing twophase displaced beat waveforms from the supply and generator, each beat waveform being converted into first and second square waveforms, the first waveform developing a first and second series of pulses the leading edges of the first and second being co-incident with the leading and trailing edges of the first square waveform respectively, and the second square waveform being compared with the first and second pulse trains in means which raise or lower the generator frequency when the pulses of the first or second train respectively occur during the mark periods of the second square waveform. The supply and generator voltages are fed to two transformers each having two secondary windings one secondary winding of each transformer being series connected with one secondary winding of the other transformer, the output of one pair of secondary windings being phase shifted by a C.R. circuit. The outputs are amplified in transistor circuits and compared in diode AND gates, the two gates controlling a bi-stable circuit providing stable outputs to raise or lower the generator speed. Voltage and phase comparison circuits are also provided to prevent closure of the generator circuit breaker when conditions are not favourable, these circuits also being connected to the AND gates. A " nudge " circuit may also be incorporated to provide a lower speed pulse every 15 seconds if speed and voltage conditions are correct but the voltages are phase displaced.
Patent GB-970578-A (GB)
Title: New quinoline derivatives and process for the preparation thereof
Inventor: WIGGINS LESLIE FREDERICK
IPC: C07D215/22
Filed: 1959-12-31
Abstract: The invention comprises compounds of general formula <FORM:0970578/C1/1> wherein R1 is a phenyl group optionally substituted by a halogen atom, and the ring A may be substituted in the 6, 7 or 8 position by a chlorine or bromine atom or by a methyl, methoxy or trifluoromethyl group; and their alkali metal salts; and their preparation by heating together a compound of formula <FORM:0970578/C1/2> with a compound of formula <FORM:0970578/C1/3> where R3 is a C1-4 alkyl group, there being provision for the alcohol R3OH formed during the reaction to be removed from the reactants. Pharmaceutical compositions comprise compounds I and salts of the invention with pharmaceutical carriers.  The compounds are sedatives. According to the Provisional Specification, in compounds I: R1 is branched chain alkyl (4-8C), cycloalkyl (5-6C), or optionally substituted phenyl; the quinoline nitrogen atom bears an alkyl (1-3C) group Y; except that when R1 is unsubstituted phenyl and the ring A is unsubstituted, Y is not methyl.  Additional compounds prepared are 1-isopropyl-3-phenyl-, 7-chloro-1-methyl-3-phenyl-, and 3-(o-chlorophenyl)-1-methyl-1, 2, 3, 4-tetrahydroquinoline-2, 4-diones by the above process (R3 is ethyl).
Patent GB-1009984-A (GB)
Title: Fluid controlling valves
Inventor: SHAND STANLEY GRAPES
IPC: F16K5/20
Filed: 1961-12-14
Abstract: 1,009,984. Valves. SAUNDERS VALVE CO. Ltd. Dec. 12, 1962 [Dec. 14, 1961], No. 44926/61. Heading F2V. A multiple way or, as shown, a through-way rotary-spherical valve has the obturator 13, Fig. 1, mounted on trunnions 17, 18 or directly on synthetic plastic, e.g. P.T.F.E., seating rings 22; the latter are slidable on thrust tubes 23 embodying an annular rib 24 with an outerspherical periphery that is accommodated in a recess in the pipe connection 16 to provide for pivoting of the seat. Each ring 22 is sealed by an annular-flexible diaphragm 28 secured by the connection 16, each diaphragm being sealed between a rib 24 and ring 22 by an undulating spring ring 31 which also urges the seat structure on to the obturator; the controlled fluid also assists the latter action. In other forms the diaphragm is of corrugated metal soldered to the seating ring which is of plastic material and integral with the thrust ring; both diaphragm peripheries may be embedded in a rubber-like material. The diaphragm may be replaced by a metallic or plastic bellows. In another form, the seal may be provided by a chevron 46, Fig. 5, between the rib 24 and a seating ring 47 of metal or plastic material; the chevron seal may be formed by thin metal laminations. An O-ring with anti-extrusion rings may be used instead of the chevron seal; the seating ring may be of metal with a plastic insert or of plastic with a metal shroud. In a further form, the seal is effected by a lip 54, Fig. 9, of plastic material at the rear of the seating ring 55; the seating ring may be of metal with a plastic lip member extending between the rib 24 and ring 55. The sealing arrangements are applicable to other forms of plug cocks and to gate valves. Specifications 571,285, 655,077 and 655,078 are referred to.
Patent GB-1176596-A (GB)
Title: Apparatus for Processing Light-Sensitive Sheet Material
Inventor: SCHLEIFENBAUM KARL
IPC: G03D3/04
Filed: 1968-09-23
Abstract: 1,176,596. Agitating liquids. METEORSIEGEN APPARATEBAU PAUL SCHMECK G.m.b.H. 23 Sept., 1968 [11 Oct., 1967], No. 45035/68. Heading B1C. [Also in Division G2] A film processing tank 1 is divided by an apertured partition wall 2 into two compartments 9, 10. Compartment 10 contains a pair of feed rollers 3 between which the film sheet passes, and a twisted plate 8 which rotates relatively slowly to maintain the processing solution in gentle but constant circulation. Compartment 9 contains a propeller 6 which rotates at a higher speed. Thus the liquid in compartment 9 is well mixed by relatively violent agitation, and then circulates through the partition into compartment 10, so that the turbulent motion in compartment 9 does not act directly on the film.
Patent GB-1272937-A (GB)
Title: Sensing head
Inventor: BERRIDGE FRANCIS JAMES
IPC: G01P3/481
Filed: 1968-09-23
Abstract: 1,272,937. Selective signalling. COURTAULDS Ltd. 22 Sept., 1969 [23 Sept., 1968], No. 45071/68. Heading G4H. [Also in Division G1] In a metal detector a squegging oscillator T 1  includes two series-connected coils L 2 , L 3  in its earth path so arranged that the presence of metal 2 between the coils increases the coupling between the coils and pervents oscillation. As described the arrangement is used to detect a gap in a rotating disc 2 so as to count 1 its number of revolutions. When the gap is sensed squegging occurs (typically at a frequency of 1 Mc/s. superimposed upon 10 Mc/s.) and each burst of oscillation is coupled via a capacitor C3 to a diode pump D 1 , D 2  causing an increment of charge to be applied to a capacitor C 4 . After about five such increments a transistor T 2  conducts and unity is added to the counter 1. Since about five bursts of oscillation are required before the counter is actuated the system is extremely insensitive to spurious pulses caused, for example, by the gap just being about to enter the detector.