baber/WOPTO huggingface dataset:
Patent GB-1145677-A (GB)
Title: Heat stabilization of polyamides
IPC: D01F6/60
Filed: 1967-09-14
Abstract: 1,145,677. Polyamide filamentary materials. INVENTA A.G. FœR FORSCHUNG UND PATENTVERWERTUNG, ZœRICH. 14 Sept., 1967 [16 Sept., 1966], No. 41933/67. Heading B5B. [Also in Division C3] In a process for the formation of heatstabilized stretched products of a linear polyamide, a copper compound and an organic nitrogen compound are added to the polyamideforming starting materials, the polyamide is prepared by polymerization and formed into a stretchable product, a solution or dispersion of an alkali metal halide is applied to the product and finally the product is stretched. In a modification, the copper compound and organic nitrogen compound are mixed with polyamide chips, the mixture formed into a stretchable product, a solution or dispersion of an alkali metal halide is applied to the product and finally the product is stretched. The stretchable product may be a filament, monofil or film. Specified organic nitrogen compounds include di - beta - naphthyl - para - phenylenediamine, N - phenyl - beta - naphthylamine, N - acylpara - aminophenol and mercaptobenzimidazole. Suitably, the polyamide is formed into a stretchable product by spinning, and the alkali metal halide is added to the spin finish, to which a light stabilizer or an optical brightener may also be added if desired. Alternatively, the solution or dispersion of alkali metal halide and any other desired additives may be applied consecutively to the stretchable product. Thus the secondary constituents of the stabilizer combination may be applied to the as-spun filaments in aqueous solution or in an organic solvent with a first applicator roll, the spin finish then being applied with the second applicator roll, if desired also with another addition of a stabilizer constituent. In this way, application of the stabilizer constituents in coats is possible and thus stabilizer constituents which are incompatible with the spin finish, but soluble in water or organic solvents, can also be applied. Conversely, the stabilizer constituents can also be applied in only the outer layer of the fibre if the spin finish is applied with the first applicator roll and the stabilizers are applied with the second applicator roll. In this way, the stabilizer develops its action only on the surface of the fibre, where the oxiditative damage primarily occurs, this action being then intensified. Harmful side effects of the stabilizer which may possibly occur due to catalytic chain disintegration are also in this way restricted to the surface of the fibre. In the example, polyamide chips, with cuprous chloride and mercaptobenzimidazole applied thereto in powder form are melted at 270‹ C. and spun into filaments. A spin finish containing potassium iodide is applied by means of applicator roll. The yarn so obtained is stretched to a ratio of 1:3À505.
Patent GB-1377889-A (GB)
Title: Electric motor arrangement
IPC: H02K17/08
Filed: 1973-09-06
Abstract: 1377889 Accessories for dynamoelectric machines; heat shields INTERNATIONAL STANDARD ELECTRIC CORP 6 Sept 1973 [6 Sept 1972] 41935/73 Heading H2A A motor comprising a stator 2 and rotor 3 is mounted within a housing 1 such that the rotor shaft 4 passes through the middle of a hollow cylindrical motor capacitor 5. A conductive heat shield 7 is positioned between the stator and the capacitor whereby to conduct heat away to the housing and so keep the capacitor below 100‹C. Alternatively/additionally, the rotor may have fan blades, and the capacitor may be square, rectangular or oval shaped.
Patent GB-981395-A (GB)
Title: Improvements relating to skips for dumper vehicles
Inventor: SMITH ARTHUR HENRY
IPC: B60P1/64
Filed: 1959-12-10
Abstract: 981,395. Latch fastenings. BENFORD Ltd. March 10, 1961 [Dec. 10, 1959], No. 41953/59. Heading E2A. [Also in Division B8] A latch for securing a skip body on a dumper vehicle (see Division B8) comprises fixed and movable members 33, 35 urged into the position shown by a spring 41. The member 35 may be turned about a pivot 36 to release a bar 66 attached to the skip by a handle 38. A stop 31a limits the closing movement of the latch. Specification 981,396 is referred to.
Patent GB-1047758-A (GB)
Title: Bunsen burner for gas appliances, more particularly for gas water heaters
IPC: F23D14/26
Filed: 1963-10-24
Abstract: 1,047,758. Bunsen burners. H. VAILLANT, [trading as JOH. VAILLANT K.G.]. Oct. 24, 1963 [Oct. 30, 1962; April 13, 1963], No. 42076/63. Heading F4T. A Bunsen burner for gas water heaters comprises a mixing chamber V, Fig. 1 (not shown), having a sheetmetal cover 11 in which are formed burner slots 12 and impressions at portions of the slots to produce a convergence in the flow of gas-air mixture from the chamber V and thereby a local reduction in the rate of such outflow. In an embodiment, Figs. 1, 2 and 3, the impressions comprise grooves R of semi-circular or V-section. The cover 11 is of U-section and its legs 11<SP>1</SP>, 11<SP>11</SP> are supported by longitudinal grooves 2<SP>1</SP>, 3<SP>1</SP> impressed into sheet metal cups 2, 3 rabbetted together to form the chamber V. The cover 11 is held by bent brackets L, L 1  between adjacent burner slots 12. In another embodiment, Fig. 4 (not shown), the impressions comprise cups 10, 10<SP>1</SP> provided at both ends of alternate gas slots 12, 12<SP>1</SP>. Alternatively, one cup is provided at alternate ends of alternate gas slots 12.
Patent GB-1526831-A (GB)
Title: Method of and apparatus for the manufacture of hoops or rings
IPC: B65H81/00
Filed: 1975-10-15
Abstract: 1526831 Moulding a ring SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 15 Oct 1975 [30 Oct 1974] 42114/75 Heading B5A [Also in Division B3] A method of making a hoop or ring comprises winding a wire of high modulus of elasticity on to a mandrel covered with a light metal foil, the pitch of the helical winding lying between 0À3 and 2À0 d where d=the diameter of the wire, depositing matrix material of light metal or light metal alloy on to the single helix, repeating the winding and depositing steps as required and hot pressing the blank obtained by the application of axial pressure, the outer and inner confining means used in the hot pressing being formed of materials selected to have a coefficient of expansion respectively less and greater than that of the blank to avoid applying radial stress to the blank. The matrix material, e.g. aluminium, is deposited by means of a plasma torch or as a foil and the surface may be ground after each deposition. Suggested wire is silicon carbide deposited on a tungsten core, or filaments comprising a layer of carbon, boron, silicon carbide or boron nitride or layers of several of these materials. Suitable diameters are 0À075- 0À20 mm. For the pressing step, the blank is placed between concentric annular members mounted on a base and hot pressed by an annular piston. Where for example the coefficient of expansion of the blank is 6.5 x 10<SP>-6</SP>, steel having a coefficient of expansion of 14À2 Î 10<SP>-6</SP> can be used for the inner annular member and graphite having a coefficient of expansion of 4 Î 10<SP>-6</SP> for the outer annular member. A reinforcing band may surround the outer member. The pressing operation for an aluminium matrix can be effected at 500 C. under a pressure of 40 Î 10<SP>3</SP> kPa or at 600 C. under a pressure of 3 x 10<SP>3</SP> kPa. The pitch of the winding in the finished ring should be not less than 0À2 of the diameter of the wire.
Patent GB-1069569-A (GB)
Title: A washing process for textile fabrics
IPC: C11D11/00
Filed: 1964-10-16
Abstract: Textile fabrics e.g. linen or clothing are washed by watery soap solutions or chemical cleaning liquid contained in a pressure vessel. The washing process comprises a single washing at high pressure e.g. 300 to 500 g/cm2 but possibly higher, and then, still under pressure at least one centrifuging operation and at least one rinsing operation.  In a preferred process there is a first centrifuging operation; a first rinsing operation; a second centrifuging operation; a second rinsing operation; and finally a third centrifuging operation.  The pressure during the centrifuging operation is preferably not higher than during the washing operation. The fluid which pressurises the vessel e.g. steam and/or compressed air is independent of the washing liquid and supplied from outside the vessel.  The temperature of which the washing operation is carried out is preferably 102 DEG C.  The fabric may be soaked under pressure before the washing operation. The alkaline content of the bath may be increased to prevent the fixation of albumin and pigments.
Patent GB-1010244-A (GB)
Title: Brush holding assemblies for miniature electric motors
IPC: H02K5/14
Filed: 1963-10-28
Abstract: 1,010,244. Electric motor brushgear. T. MABUCHI. Oct. 28, 1963 [Nov. 7, 1962], No. 42339/63. Heading H2A. A miniature electric motor contains within an end part 2 of its casing a brush holding assembly comprising two oppositely facing strips 6 each having an arcuate end 7 detachably pivoting against a seating surface 5 on a terminal post 3 and resiliently biased to urge a brush 8 carried at its other end towards the motor commutator 15 by a respective leaf spring 10 having one end located by a cornerforming part 16 of the casing end part and the other bearing against the strip 6 between its pivotal mounting and the brush. The spring other end is in notched engagement with the strip 6, and intermediate its ends the spring bears against a casing cover buttress 13.
Patent GB-1002676-A (GB)
Title: Improvements relating to commutators for dynamo-electric machines
Inventor: KETTLE ROGER ELLIS
IPC: H01R39/04
Filed: 1960-12-09
Abstract: 1,002,676. Commutators for dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. Dec. 8, 1961 [Dec. 9, 1960], No. 42476/60. Heading H2A. An annular ring 11 of commutator segments 12 separated by mica separators is secured to a commutator hub 10 by means of a plurality ofaxially spaced circumferential keys of insulating material. The outer surface 10a of the hub and the inner surface of ring 11 are provided with dove-tail section grooves 13, 17 respectively which are packed with glass fibre tape 18, the hub being wound with further glass tape 19. The hub is placed on a sealing plate and the commutator ring lowered concentrically over it after which a second sealing plate is clamped on the assembly. Epoxy resin is injected into the assembly and cured so that the glass is bonded into a single member 20 comprising a plurality of axially spaced key rings 20a each having two integral keys of dovetail cross-section engaging the grooves 17, 13 and holding the commutator ring to the hub. The rings 20a are joined together by integral annular rings 20b or the space between adjacent key rings may be occupied by air gaps.
Patent GB-1364535-A (GB)
Title: Electrical connector
IPC: H01R12/63
Filed: 1971-09-13
Abstract: 1364535 Two-part couplings CANNON ELECTRIC (GREAT BRITAIN) Ltd 13 Sept 1972 [13 Sept 1971] 42548/71 Heading H2E A connector socket body 2 has spring blade contacts 6 on one or both sides of a slot 3, designed to receive a mating connector 13 which may be of a type described in Specification 1,317,264 for termination of flexible flat strip cable, and is provided with locking means, typically consisting of cavities 11 approached through resilient slits 14 for receiving pins 12 on the mating connector. Resilience may be enhanced by cutting away areas 19. Snap lugs 16 permit panel mounting. A blade tool inserted in groove 10 can depress a spring tongue (9, Fig. 2, not shown) for contact removal rearwards. Asymmetrical grooves 20 may ensure unique mating orientation. Such grooves variously located may also provide selective mating between chosen members in a group of connectors.
Patent GB-1120507-A (GB)
Title: Tetrahydroimidazoles and process for their manufacture
Inventor: SCHMIDT PAUL
IPC: C07D409/04
Filed: 1966-09-26
Abstract: Novel 1 - [5 - nitro - thiazolyl - (2)] - 2 - oxo - 3 R-tetrahydroimidazoles, in which R is an aliphatic hydrocarbon radical which may be substituted in an unsaturated cyclic part optionally present therein, e.g. a C1- 5 alkyl or C1- 5 alkenyl radical, and in which both heterocyclic rings may contain further substituents, are prepared by nitrating a 1-[thiazolyl-(2)]-2-oxo-3-R-tetrahydroimidazole.  1 - [Thiazolyl - (2)] - 3 - methyl - 2 - oxo - tetrahydroimidazol is prepared by reacting 2-aminothiazole with b -chloroethylisocyanate to form N1 - [triazolyl - (2)] - N2 - (b  - chloroethyl) - urea, cyclizing this by boiling in water to form 1 - [thiazolyl - (2)] - 2 - oxo - tetrahydroimidazole and treating this with sodium hydride followed by dimethylsulphate.  Pharmaceutical compositions having antiparasitic and antibacterial activity for enteral, parenteral or topical administration, comprise a compound of the invention together with a carrier.
Patent GB-1479947-A (GB)
Title: Accumulator conveyors
IPC: B65G39/02
Filed: 1974-10-04
Abstract: 1479947 Accumulating articles on rollerways RAPISTAN Inc 4 Oct 1974 [9 Oct 1973] 43120/74 Heading B8A An accumulation roller conveyer comprises belt driven rollers 12 each of which is bowed along its longitudinal axis. The belt 16 has a rib 16a (not shown) which is guided in a groove formed in pressure rollers 14 located midway between the rollers 12, thus permitting the belt to flex downardly. Fig. 3 illustrates how the rollers 12 take up random rotational positions. An article H will be propelled due to a number of the rollers 12 being in driving engagement with the article and the belt 16. When an article, e.g. J, is halted by a stop 20 the rollers 12 supporting it, if they are drivingly engaged with the belt, continue to turn until they lose sufficient engagement with the belt to continue turning. On removal of the stop, however, there is adequate propelling force for the article to be moved forward again. To cover a range of article weights and belt speeds vertical adjustment of the pressure rollers 14 is provided for. Alternatively, for certain conditions, one or more strips of material having a roughened surface may be provided on the belt.
Patent GB-1261420-A (GB)
Title: Apparatus for playing a game of chance
Inventor: KELLER DAVID GUY DE
IPC: A63F5/00
Filed: 1969-09-02
Abstract: 1,261,420. Apparatus for playing a game of chance. D. G. DE KELLER. 2 Sept., 1970 [2 Sept., 1969], No. 43332/69. Heading A6H. Apparatus for playing a game of chance comprises a roulette wheel 2 and a playing surface 1 which is marked out with a first area 3 consisting a number of columns 4 for the reception of chips along which columns the chips may be moved place by place depending upon the result of the wheel 2 and a second area 6 comprising places for the reception of further chips to indicate the result bet on for an individual operation of the wheel, the places 8 being marked with indicia representing the results on which it is possible to wager bets. The indicia corresponding to that on the wheel 2.
Patent GB-1021766-A (GB)
Title: Method and machine for grinding a toothed wheel
IPC: B23F23/00
Filed: 1962-11-16
Abstract: 1,021,766. Gear-grinding. CARL HURTH MASCHINENUND ZAHNRADFABRIK. Nov. 16, 1962 [March 9, 1962], No. 43390/62. Headings B3B and B3K. [Also in Division F2] In a method of grinding gears, at least one flank of a workpiece tooth is machined during both forward and return strokes of the wheel. The workpiece 25, Figs. 1, 4, 5 and 6 (not shown), is carried on a spindle associated with indexing means 26 and rotating in a sleeve carried by a slide 21. The sleeve carries a replaceable rolling segment 28 engaged by tapes 29a-29d, the tapes being tensioned by levers 44 engaged by adjusting screws 51a, 51b on pistons 54a, in cylinders 55a, 55b, on a slide 31 The slide 31 is mounted on a head 32 which is adjusted vertically by a screw 35. The slide 31 is urged by a spring 58 against a lever 63 positioned by a stop 66 adjusted by a screw 69a and gears 70, 71, the setting being indicated on a dial 72. The wheel 75, Fig. 12 (not shown), is mounted in a head 76 which is angularly and vertically displaceable. The wheel spindle 78 is adjusted in a conical bearing 79 by nuts 83 acting against a thrust race 82 engaged by a spring 81. The spindle is rotated by a motor 84 in a sleeve 80 which can be adjusted axially by a motor or manually through gearing 93, 90 and 89 and a nut 87. In operation, the gear flank 100, Fig. 5, is rolled against the fixed face 107 of the grinding wheel. Due to differences in tape expansion in opposite swings 105, 106 of the segment 28, the tooth 25a does not contact the wheel during one swing, being, say, a distance 110 out of contact. The differences may be compensated by applying an additional tension to the tapes in at least one direction of movement by operating at least one piston 54a through a valve 113, Fig. 4, oscillated in unison with movements of the segment 28. In a modification, only one compensating piston is provided working against an adjustable stop. In a further modification, the need for compensation is avoided by relieving the tapes of tension during the rolling movements. To this end, racks 136, 137, Fig. 7 (not shown), are so urged by electromagnets in time with the oscillations of the spindle-carrying sleeve 23 that, through pinions 126, 127, the force on the tapes is reduced. Alternatively, braking forces may be applied to the sleeve 23 to equalize the tape tension. In another modification, the tapes 29a, 29b, Fig. 10 (not shown), are engaged by cams 142a, 142b moved to positions determined by stops 144, 145 by a rod 147 passing through a friction block 148. In a final modification, the corrections are applied to the grinding wheel 75, Fig. 12 (not shown), which is reciprocated axially by rotating the gears 90 to feed the sleeve 86 through a lever 163 moved by a fluid-controlled piston.
Patent GB-1301794-A (GB)
IPC: B41F9/06
Filed: 1971-09-17
Abstract: 1301794 Doctoring apparatus for coating roller PAPER CONVERTING MACHINE CO Inc 17 Sept 1971 [24 May 1971] 43512/71 Heading D1L Apparatus for coating a web W backed by an impression cylinder 13 comprises a roll 11 on a shaft 11a journalled for rotation on a frame (10) (Fig. 2, not shown); a casing 17 mounted on the frame adjacent to the roll 11; means 16 for delivering coating liquid to the casing; and a housing 14 about said roll 11 and casing 17; the casing having side, end and bottom walls with the end walls (20) (Fig. 2), spaced from the ends of the roll 11 to define a narrow gap (27) therebetween and the bottom wall 19 having a generally planar elongated reverse-angled doctor blade 25 arranged to contact the coating roll 11 and define with the roll, end walls (20) and side wall 18 a chamber for the coating liquid. The casing 17 is movable towards and away from the roll 11, to alter the pressure of the doctor blade 25 against the coating roll, by means of a hand wheel 29 on shaft 30 equipped with a worm 31 engaged with wormgear 32 and thus threaded rod 33 (see also, Fig. 2). The casing 17 may be provided with a baffle plate 23 to reduce foaming at the coating -liquid in the reservoir 24 of the-casing. In operation coating liquid is supplied to casing 17, and spread to the desired thickness on coating roll 11 rotating in the direction of arrow 26 by doctor blade 25, excess liquid escaping through the gap (27) between end walls (20) and the end faces (21) of the roll to drop onto screen 14a in the housing 14 and then to be recirculated to the liquid supply means. Excess liquid which adheres to the end faces of the roll may be wiped from the roll by wiper 22.
Patent GB-1334916-A (GB)
Title: Capacitance measuring apparatus
IPC: G01F23/26
Filed: 1971-09-20
Abstract: 1334916 Measuring capacitance; capacitance probe SUN OIL CO 20 Sept 1971 [24 Sept 1970] 43694/71 Headings G1N and G1U In the series circuit shown in Fig.1, the supply voltage V can be expressed as using an obvious notation, so that if wCR is large compared with unity, and if V is varied in such a way that V c  is maintained constant as C varies, then V is approximately linearly proportional to C and can be used as a measure of C, particularly when C is a capacitance measuring probe for measuring, for example, liquid, granular, or powder levels, the depth of foam on liquids, insulation thickness, or the percentage composition of oil and water mixtures. The principle used to maintain V c  constant is shown in Fig. 2. The voltage V c  is amplified A-2, rectified in a voltage doubler, and the difference between the rectified voltage and a reference voltage E is fed back to control the impedance of diode D. If the difference is slightly positive, the diode impedance falls thereby reducing V, and conversely, if the difference is slightly negative the diode impedance rises thereby raising V. (The component must be chosen so that the diode operates over its linear range). In the preferred circuit Fig.3, the supply is produced by a Colpitts oscillator 3, 4, 5, 6, and the output voltage V is taken from a coupling capacitor 37 and rectified in a doubler 38. The preferred circuit also includes a stable reference capacitor 26 which is periodically (e.g. at 2c/s) switched into circuit in place of the unknown probe capacitor 2 - this being effected by an oscillator 50 and diodes 23, 25. Furthermore, when the reference capacitor 26 is a circuit, the output voltage V after rectification 38 and amplification 40, 41, is applied to a potential divider 54, 55, 56 connected to a -15v supply line 35, and a tapped off voltage from a point 59 is applied to an amplifier 66 arranged to control the impedance of an FET 57 so that the potential at point 59 is substantially zero. This input to the FET is held, by a capacitor 53, so that when the probe 2 is in circuit the output, which now passes via an amplifier 69 to terminals 73, 74, is appropriately attenuated to compensate for drift in component parameters.
Patent GB-993808-A (GB)
Title: Improvements in the propulsion of supramarine craft
IPC: B63H11/12
Filed: 1964-03-26
Abstract: 993,808. Air cushion vehicles. A. P. PEDRICK. March 26, 1964, No. 43753/62. Heading B7K. A craft adapted for movement over the surface of water with the major part of its base surface close to, but supported away from, the surface of the water, so that when such craft is proceeding at its normal operational speed, such speed being greater than some predetermined minimum, the aerodynamic drag operative against such forward movement is greater than any hydrodynamic drag also effective against such forward movement as a result of intermittent contact of the base surface with the water, or slight penetration of the water by projections below said base surface, and wherein also the force for propulsion of the craft, at said normal operational speed, is derived to a greater extent from hydrodynamically produced force than by aerodynamically produced force, is characterized in that the craft is of such a size, in relation to its weight, that, at such normal operational speed, the aerodynamic forces thereon resulting from the relative airstream derived from its forward speed only, are sufficient to support its weight. The craft comprises a hull 1 of aerofoil section capable of deriving sufficient lift at normal operational speed to support the craft, side plates 7 and 8 preventing outflow of air from the lifting surfaces. A pair of gas turbine engines 9, 10 drive a pair of paddle wheels through gear-boxes 11, 12 and to provide sufficient lift at low forward speed a chamber below the craft is pressurised through a duct 19 from the gas turbines, the forward part of the chamber being sealed by a pivotal flap located between the side plates 7. A further embodiment is described in which the means of propulsion comprises gas turbine engines, the jet pipes of which act as ejector pumps to draw water from beneath the craft and eject it rearwardly. Specification 332,437 and U.S.A. Specification 1,003,364 are referred to.