baber/WOPTO huggingface dataset:
Patent GB-1527365-A (GB)
Title: Urea formaldehyde moulding compositions
IPC: C08J3/12
Filed: 1975-12-02
Abstract: 1527365 Urea-formaldehyde moulding compositions DYNAMIT NOBEL AG 2 Dec 1975 [3 Dec 1974] 49532/75 Heading C3R A moulding composition comprises a ureaformaldehyde resin, an organic filler and (a) a silicone containing siloxane units of the formula X(R) a SiO 3-a / 2 , in which R represents a hydrogen atom or an alkyl, alkoxy or aryl radical, X represents a hydrogen atom, an alkyl or alkenyl radical or a hydrocarbon radical having a functional group, e.g. -CH 2 -(CH 2 ) n -Z where n is 0-10 and Z is an amino, epoxy or carboxylic acid ester group, a is 0-2 and/or (b) a silane of the general formula where R<SP>1</SP> represents a C 1 -C 8  alkyl or oxyalkyl radical, R<SP>11</SP> represents a C 1 -C 4  alkyl radical, Y represents an amino, carboxyl, glycidyl, mercapto or alkenyl group, A represents a linear or branched alkylene radical which may be attached to the group Y through an oxygen atom, n is 0 or 1, b is 0-2 and/or (c) hydrolysis products of silanes (b). The silicone (a) is preferably present in. an amount of from 0À05 to 1À6% wt. based on the urea content of the resin and the silane or hydrolysis product thereof is preferably present in an amount of from 0À8 to 3À0% wt. based on the urea content of the resin. The preferred organic filler is cellulose. The silicone is preferably a polydimethylsiloxane. Suitable silanes are 8-aminopropyl trimethoxysilane, 8 - aminopropyl triethoxysilane, α- methyl - # - aminoethyl triethoxysilane, N- (# - aminoethyl) - 8 - aminopropyl triethoxy silane, 8 - methacryl oxypropyl trimethoxy silane, 8 - glycidyl oxypropyl trimethoxy silane, vinyl triethoxy silane and vinyl-tris- (#-methoxyethoxy)-silane. The organosilicon compounds prevent the agglomeration of the resin particles during storage of the organically filled moulding compositions which composition may be prepared by condensing urea and formaldehyde in a molar ratio of from 1 : 1À2 to 1 : 1À8 in an aqueous alkaline medium, then distilling off the water until the liquid resin reaches the required density, e.g. 1À2 g./ml. (40 C.), then mixing the liquid resin with a hardening accelerator, e.g. zinc sulphite, an organic filler, e.g. cellulose, a lubricant, e.g. zinc stearate, a pigment, e.g. lithopone and optionally a plasticizer, e.g. dimethyl phthalate. The resulting mixture is dried, ground and granulated. The organosilicon compounds may be added to the moulding compositions before, during or after the additives have been mixed with the resin.
Patent GB-1331487-A (GB)
Title: Methods of cutting gear teeth of homokinetic joints for driving hydraulic pumps and motors
IPC: B23F15/00
Filed: 1970-10-19
Abstract: 1331487 Gear-cutting REGIE NATIONALE DES USINES RENAULT 19 Oct 1970 [21 Nov 1969] 49604/70 Heading B3K [Also in Division F2] A method of cutting teeth with a convex working surface on a homokinetic joint 3, Fig. 6, comprises rotating and reciprocating a tool having a number of cutters 54, rotating the workpiece 3, and pivoting the tool about its axis during the cutting operation. The machine for carrying out the method comprises a fixed frame 1, and a frame 63 pivotal about an axis Z, Z<SP>1</SP>, on frame 1. Work spindle 2 is rotated by an electric motor 8 through gears 7, 6, and the motor also drives the tool spindle 27 at the same speed via a gear train 7, 9-13, 15-17, 24-26. Spindle 27 is reciprocated by a drive from shaft 27 through gearing 28-30, and a mechanism 31 which converts rotary motion of a sleeve 32 to reciprocating motion, via a shaft 32. A screwed sleeve 50 is adapted to be moved axially in spindle 27 so as to retract cutters 54, by a motor 65 which rotates the sleeve via gearing 47, 46, 47, 45, and a splined shaft 49. When the required depth of cut of the teeth in the workpiece has been reached, motor 65 is stopped, and an hydraulic actuator 62 pivots frame 63 so that the axis of the tool is pivoted whilst the tool is still reciprocating. During this pivoting movement a pinion 36 causes a cam 39 to rotate, which controls the radial positions of the cutters 54 through gear drive 40, 41, 43, 44, 46, 47, 45, 48 and spindle 27, and the required convex shape of the workpiece teeth is produced. Spindle 27 is prevented from undergoing a phase displacement relative to work spindle 2 by a gear drive 23, 22, 20, 19, 18. Mechanisms 31, 42, are coupled by a system 67 so that radial adjustment of cutters 54 can only take place when the tool is at top or bottom dead centre. It is stated that the trains of gears may be replaced by shafts and homokinetic joints. In a modification, non-retractable cutters 214, Fig. 10, are rotated, and reciprocated, tool 213 is pivoted, and the workpiece 208 is rotated and also moved in an orbital path t within the tool, Fig. 11. Work spindle 207 is eccentrically mounted in a sleeve 222, which in turn is eccentrically mounted in a driving sleeve 223. A pinion 228 is driven by a motor 240 through gears 241, 235, and a toothed ring 229 on sleeve 222 is driven in the same direction and at the same speed as pinion 228 through gearing 232, 230. The throw of the eccentric position of workpiece 208 can be varied by a rotation of a shaft 239, which also increases the cutter speed in order to keep the relative positions of tool and work unchanged by driving the tool through gearing 242, 211 and 218-220. The convex teeth may be internal or external of the workpiece.
Patent GB-1114967-A (GB)
Title: Magnetohydrodynamic generation of alternating current
IPC: H02K44/08
Filed: 1966-11-04
Abstract: 1,114,967. Generators operating by electromagnetic interaction with fluids. NORTH AMERICAN AVIATION Inc. 4 Nov., 1966 [4 Nov., 1965], No. 49618/66. Heading H2A. In an alternating current M.H.D. generator spaced apart electrically conductive portions of the generally non-conductive working fluid are passed through magnetizing means and then through coil means for generating the output voltage. The electrically-conductive portions are produced by injecting a subcooled fluid into the vapour rich working fluid to produce a liquid rich slug having a magnetic Reynolds number greater than unity. The liquid rich slug 100 passes between exciter coils 60, 62 which provide a steady magnetic field across the duct which impresses a magnetic dipole characteristic on the slug. The exciter coils are de-energized by control device 66 and the slug passes through stator winding region 70 to generate an output voltage. The energization of coils 60, 62 is reversed and subcooled fluid injected at 80 to provide a following slug having an opposite dipole characteristic and the sequence of operations continues under the control of device 66. In a modification the exciter coils consist of a number of sequentially energized sections disposed in the direction of working fluid flow, Fig. 4 (not shown), and this allows the slugs to be more closely spaced.
Patent GB-1510466-A (GB)
Title: Protective relay arrangements
IPC: H02H3/38
Filed: 1974-11-18
Abstract: 1510466 Distance relays GENERAL ELECTRIC CO Ltd 18 Nov 1975 [18 Nov 1974] 49733/74 Heading H2K In a distance relay which compares two quantities in amplitude or in phase and which may have any known characteristic, e.g. reactance, offset mho, the quantities being compared are corrected to allow for the fact that some of the line current at the relaying point will flow along the line beyond the fault rather than through the fault itself. If is the expression for one of the quantities to be compared in any given conventional relay (where I A , V A  are line current and voltage at the relaying point), the corrected quantity is given by f[(I A -I L ), (V A -I L Z R )], where I L  is the alternating current flowing before the fault occurred and Z R  is a replica impedance. The corrected quantities for various relays are summarized in Tables II and III in the Specification.
Patent GB-1203276-A (GB)
Title: Heat recoverable article
Inventor: WETMORE JUDSON DOUGLAS
IPC: B29C61/00
Filed: 1967-11-02
Abstract: 1,203,276. Wrench. RAYCHEM CORP. 2 Nov., 1967 [3 Nov., 1966], No. 49793/67. Heading B3N. [Also in Divisions G1, H1 and H2] A device for effecting a screwing operation comprises a sleeve member 73 which is heat recoverable in the sense that it has been expanded under heat and pressure to a diameter greater than normal and then cooled under pressure so that on heating it will shrink to its original size and a spiral spring inlet 74 in the sleeve the insert being connected to a rod 75 with an actuator 76, so that when the sleeve 73 is caused to recover by heating the insert 74 is wound up thus rotating the rod. Suitable heat recoverable materials are given as cross-linked or non-crystalline polymers, e.g. polyurethane or metals.
Patent GB-1157998-A (GB)
Title: Antibiotic SL 1846
Inventor: SIGG HANS-PETER
IPC: C12P1/02
Filed: 1966-11-07
Abstract: 1,157,998. Antibiotic SL 1846. SANDOZ Ltd. 7 Nov., 1966 [6 Dec., 1965], No. 49846/66. Heading C2A. A cytostatic, antiviral and amebostatic antibiotic SL 1846, produced by the cultivation of Pseudeurotium ovalis NRRL 3194, is characterized by having the following properties: a colourless, crystalline neutral compound having the formula C 16 H 24 O 5 , a melting point of 89-92‹ C., a specific rotation of [α]<SP>20</SP> D  = -117 degrees (C = 0À40 in chloroform), ultraviolet spectrum (Fig. 1, not shown) showing maximum at 284À5 mÁ (log # = 1À63) and strong adsorption at 210 mÁ (log E = 3À1) and infra-red spectrum as in Fig. 2. Antibiotic SL 1846 has the formula 4 - (2,3 epoxy - 6 - methyl - 5 - hepten - 2 - yl) - 4 - hydroxy - 5 - methoxy - 1 - oxaspiro -[2,5]- octan-6-one. The antibiotic is isolated from the clarified culture broth by extraction with a waterimmiscible solvent, e.g. ethylene chloride, benzene, ethyl acetate, butyl acetate, chloroform or butanol. Purification is by (a) chromatography on e.g. activated alumina, silica gel or magnesium silicate followed by elution with chloroform/methanol and (b) counter-current distribution. A pharmaceutical preparation for internal and external use comprises antibiotic SL 1846 and a carrier.
Patent GB-1291055-A (GB)
Title: Production of coffee compositions
Inventor: GREEN JULIUS
IPC: A23F5/36
Filed: 1968-10-21
Abstract: 1291055 Coffee compositions GENERAL FOODS Ltd 21 Oct 1969 [21 Oct 1968] 49936/68 Heading A2B A process of producing an aqueous coffee composition, which may be subsequently dried, and which contains at least two different species of coffee solids comprises (a) producing an aqueous coffee extract containing one species of coffee solids in a higher proportion than that species is desired in the final aqueous composition, from roasted ground coffee (b) separately producing a spray dried coffee extract containing another species of coffee solids in a higher proportion than that species is desired in the final aqueous composition, by extracting roasted ground coffee with water and spray drying the resultant extract and (c) dissolving the spray dried extract in the extract formed in step (a). The product of step (c) may be freeze dried or spray dried. The extract formed in step (a) may contain coffee solids rich in aroma-imparting ingredients (e.g. Arabica coffee solids) and the spray dried extract less desirable coffee solids (e.g. Robusta coffee solids). In the production of the extract of step (a) volatile components may be steam distilled from roasted ground coffee prior to extraction thereof with water. The volatile acids may be separated from the other volatile components, the latter being subsequently combined with the extract.
Patent GB-1192377-A (GB)
Title: Improvements relating to the Spinning of Textile Yarns
Inventor: BENYON JOHN
IPC: D01H4/50
Filed: 1966-11-09
Abstract: 1,192,377. Open end spinning. T.M.M. (RESEARCH) Ltd. 7 Nov., 1967 [9 Nov., 1966], No. 50250/66. Heading D1D. In an open end spinning m/c means are provided such that when stopping spinning the feed of fibres to the roter is stopped while the spinning and removal of the yarn continues until all fibres are removed from the rotor. In the open end spinning m/c shown, operation of a stop switch causes the rotor driving belt 30, the sliver feeding rollers 13, 14, the delivery rollers 24, 25 and take up roller 26 to be stopped. Simultaneously an arm 32 having a yarn engaging part 33 is moved by a pneumatic piston-cylinder arrangement 35 to deflect the delivered yarn as shown at 34. Thus the "slowing down" rotation of rotor 19 against the stationary belt 30 and the withdrawal of the yarn by the part 33 causes all the fibres in the rotor to be spun and removed. On starting up a switch is operated which results in rotor 19 and delivery rollers 15, 16 being driven. When these components reach operational speed a further switch is operated to cause pistoncylinder device 35 to move arm 32 to the right thus allowing the yarn end to be drawn back into the spinning chamber by suction. Rollers 13, 14 are started so that fibre is once again fed to the chamber. When arm 32 completes its traverse to the right a switch MS3 is operated to cause the drive to rollers 24, 25 and 26 to be resumed. 'Normal operation is thus recommenced. The speed and distance of movement of arm 32 can be adjusted by valves 46 in the pneumatic circuit of device 35 and by adjusting the position of stop switches MS2 and MS3.
Patent GB-1254680-A (GB)
Title: Embossing tool with selective stop feed means
Inventor: PEDERSEN DANE H
IPC: B41J3/39
Filed: 1970-10-26
Abstract: 1,254,680. Selective embossing. DYMO INDUSTRIES Inc. 26 Oct., 1970 [24 Oct., 1969], No. 50699/70. Heading B6F. A selective embossing tool comprises a strip advancing means operative after each embossing operation, and means for rendering the strip advancing means inoperative for over-embossing, for example for accenting. The strip advancing means comprises a pawl 64 pivoted to a die actuating trigger 36 and acting on a ratchet-wheel 58 for strip feed as the trigger returns to its normal position. A button (72, Figs. 2, 3, 7, 8) formed on a member 74 may be pushed to cam the pawl to an inoperative position shown in dashed lines.
Patent GB-1087598-A (GB)
Title: í¸-3-oxo-androstenes and process for their manufacture
IPC: C07J1/00
Filed: 1965-12-06
Abstract: D 5 - 3 - Hydroxy - 17 - oxo - androstene is converted to the 17-ethylene ketal, this is brominated in a neutral or basic medium, the resulting compound oxidized in a neutral or basic medium, hydrogen bromide eliminated from the resulting intermediate to give the novel D 46 - 3,17 - dioxo - androstadiene 17-ethyleneketal, this reacted with a methyl magnesium halide in the presence of a copper salt to give the novel D 4-3,17-dioxo-7a -methyl-androstene 17-ethyleneketal and the corresponding 7b -methyl compound, and any of the obtained ketals converted to the free 17-oxo-steroids.
Patent GB-1587210-A (GB)
Title: Process for the production of negligibly dusty dyestuff prparations
IPC: D06L3/12
Filed: 1977-12-13
Abstract: To prepare low-dust dye and optical brightener preparations, a mixture comprising at least one dye or optical brightener, a tackifier (coupling agent, adhesive, adhesion promoter), a dustproofing agent and a further additive is admixed with an inorganic salt preheated to at least 50 DEG C. The preparations produced by this process are low-dust to dust-free even after storage for 10 to 12 months.
Patent GB-521297-A (GB)
IPC: E04D3/36
Abstract: 521,297. Bolt fastenings. HURDEN, E. Nov. 12, 1938, No. 32957. [Class 89 (i)] In bolt fastenings for roofs the nut and bolt end are masked by a cap J, Fig. 1, which has a central extension G for the bolt end, and a bellshaped part H for clearing the nut and engaging a washer E which may bear on a fibrous washer F. The cap may be driven or screwed into position to make a weatherproof joint with the washer E. In a modification, the cap is made of the form shown in section in Fig. 3.
Patent GB-1180952-A (GB)
Title: Multi-Roll Stand.
Inventor: AUSTEN ERHARD
IPC: B21B13/14
Filed: 1967-11-16
Abstract: 1,180,952. Rolling. SCHWERMASCHINENBAU ERNST THALMANN VEB. 16 Nov., 1967, No. 52251/67. Heading B3M. A roll stand includes work rolls 1 which are offset from the plane of backing rolls 5, are frictionally driven by the backing rolls, and are laterally supported by intermediate rolls 2, support rolls 3, and rollers 4. Each set of rolls 1-3 is carried at each end by an arm 14 while the corresponding roller 4 is carried in an arm 15 which is pivoted to the arm 14 about the bushing 20 of support roll 3. Spring loaded wedges 24 urge the rolls 3 to the left, and pistons 27 urge the rollers 4 into contact with the rolls 3. Jacks 28 and 26 urge the ends of the arms 14 and 15 apart, and supporting links 11 are pivotally engaged at 34 with the arms 15. The angle α, Fig. 1, between the centre lines of rolls 1-3 and 3 and 4 is adjustable by means of rollers 18, Fig. 3, of different sizes which are located between the arms 15 and fixed stops.
Patent GB-1255105-A (GB)
Title: Halogen lamps
Inventor: SUGANO KEIICHI
IPC: H01K1/50
Filed: 1969-10-28
Abstract: 1,255,105. Electric incandescent lamp. TOKYO SHIBAURA ELECTRIC CO. Ltd. 28 Oct., 1969 [28 Oct., 1968], No. 52685/69. Heading H1F. An electric incandescent lamp comprises a bulb, a filament, nitrogen and/or an inert gas and a mixture of methyl bromide and chloroform, methylene chloride or methyl chloride, or methylene bromide and chloroform. The inert gas may be xenon, argon or neon.
Patent GB-1256104-A (GB)
Title: Apparatus for determining the orientation of an object
Inventor: BABOZ JEAN
IPC: H01Q3/08
Filed: 1969-10-28
Abstract: 1,256,104. Optical locating devices. SOC: D'OPTIQUE, PRECISION, ELECTONIQUE ET MECANIQUE. Oct.28, 1969 [Oct.29, 1968], No.52731/69. Heading G2J. In order to determine the orientation of an object 2, two reflecting surfaces are arranged on the object for rotation with the object whilst a third reflecting surface 10 is mounted for rotation about axes 7, 9. With suitable positioning of the reflector 10 a light beam will proceed by sequential reflections at the three surfaces from a collimator 11 to a parallel telescopic 17 and the setting of the reflector 10 about its axes 7, 9 gives a location of the object. The reflecting surfaces may be all mirrors or two may be the surfaces of a 90 degree prism which converge at 90 degrees, as shown. A sighting telescope 22 may also be used to give locations relative to a fixed point.
Patent GB-1504620-A (GB)
Title: Traffic guardrail
IPC: E01F15/04
Filed: 1975-12-31
Abstract: 1504620 Reinforced concrete DANSK AUTOVAERN A/S 31 Dec 1975 53395/75 Heading C1H [Also in Division El]  In a highway crash barrier comprising ports 8 supporting coaxial rails 1 of concrete reinforced by iron bars 2 connected end to end as by loops and bars 3 to form a continuous reinforcement chain, the concrete mix incorporates polypropylene or other plastics fibres (say 0À2-0À5% by weight) to allow the concrete to absorb impact energy comparably with a steel rail. Additional coupling members 4 at rail joints are bolted together at 5 and each joint is filled with mortar. Each post 8 may be of a fibre/concrete mix.
Patent GB-1359024-A (GB)
Title: Foam stabilizers
IPC: C08J9/00
Filed: 1971-11-22
Abstract: 1359024 Polysiloxane foam stabilizers IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Nov 1972 [22 Nov 1971] 54120/71 Headings C3T and C3C A foam stabilizer suitable for use in the production of foams from plastisols comprises at least one copolymer consisting of (A) R 3 SiO 0À5 , (B) RSiO 1À5  and (C) SiO 2  units wherein R is an alkyl, monocyclic aryl hydrocarbon, alkaryl or aralkyl radical the ratio of A to B + C units being 0À6 : 1 to 1À5 : 1 and of B : C units 0À05 : 1 to 1 : 1. The copolymers can be prepared by cohydrolysing a mixture of R 3 SiX, RSiX 3  and SiX 4  where X is a halogen, or by the addition of a blend of R 3 SiX and RSiX 3  in a solvent to a stabilized silica hydrosol, or by the addition of a solution of R 3 SiX to a stabilized hydrosol of silica and methylsiliconic acid. In the production of a solid thermoplastic foam, a plastisol or a thermoplastic resin, preferably a vinyl chloride polymer, having at least one of the above polysiloxane copolymers dispersed therein is foamed with a gas or vapour introduced mechanically, and the foam so produced is heated to cause gelation and fusion thereof and then cooled. Preferred resins are vinyl chloride/ vinyl acetate copolymers containing up to 20% wt. polymerized vinyl acetate. In the examples various polysiloxane copolymers in which R is methyl are prepared by the above methods and are used as stabilizers in the preparation of foams from plastisols comprising (1) vinyl chloride polymer and as plasticizer dialkyl phthalate, butyl benzyl phthalate and mixtures thereof, and (2) vinyl chloride/vinyl acetate copolymer and as plasticizer a mixture of dialkyl phthalate, butylbenzyl phthalate and chlorinated paraffin in varying proportions, and the foam densities are determined.
Patent GB-1461204-A (GB)
Title: Fan construction
IPC: F01D5/30
Filed: 1974-12-16
Abstract: 1461204 Fan impellers W SEEBER [trading as WILLI SEEBER] 16 Dec 1974 [17 Dec 1973]  54205/74 Heading F1T In a fan impeller, e.g. for an I.C. engine cooling fan, the blade roots 2 and any spacers 3 are in the form of segments which are assembled together to form a closed ring 4 which is engaged by the rim 5 of a central hub 6, the roots and any spacers being secured together by clamps 7. If the spacers 3 are short or are omitted, each clamp 7 extends from one root 2 to the next. The clamps 7, of sheet metal and of generally U-shape, are inserted into recesses 9. Closure plugs 14 are then inserted. Ribs 12 engage grooves 11. The ring 4 is of exactly circular outline only if spacers 3 are omitted. If, in order to increase the hub diameter, spacers 3 or extra blades are provided, a wedge-shaped gap 15 occurs between adjacent faces 10. The hub 6 is injection-moulded around the ring 4 so that material of the rim 5 enters grooves 13. The blades, spacers, hub and closure plugs may all be of plastics material.
Patent GB-1148776-A (GB)
Title: Improvements in roller conveyors
Inventor: WARD FREDERICK GIFFORD
IPC: B65G23/00
Filed: 1966-12-07
Abstract: 1,148,776. Roller conveyers. HERBERT MORRIS Ltd. 24 Nov., 1967 [7 Dec., 1966], No. 54661/66. Heading B8A. Ferrous articles or articles with ferrous plates attached thereto constitute the moving member of a linear induction motor and are driven along a free roller conveyer by the reaction with a coil assembly A fixed to the conveyer framework. The coil assembly is normally in a lower inoperative position and is raised to an upper operative position by a proximity switch (not shown) actuated by an approaching article. The coil assembly is divided by a shading pole (D), (Fig. 4, not shown) to centralize the articles on their passage along the conveyer.
Patent GB-1426712-A (GB)
Title: Apparatus for use in  inflating a tubeless tyre fitted on a wheel
IPC: B60C25/12
Filed: 1971-12-02
Abstract: 1426712 Inflating tubeless tyres H P SMALLBONE 20 Feb 1973 [2 Dec 1971] 55937/71 Heading B7C Apparatus for use in inflating a tubeless tyre 16 fitted on a wheel 17 comprises a resilient annular member, e.g. 15, a container 10, open at one side, in which the annular member is located, and means for locating the wheel 17 such that one sidewall of the tyre 16 contacts the edge of the container bounding the open side of the container, the annular member being engageable in use with the tyre sidewall contacting the container edge and with the adjacent rim flange of the wheel so as to provide a seal sufficient to permit inflation of the tyre 16 to be commenced. In the illustrated embodiment the container 10 is a bowl-shaped as shown and having a pillar 11 projecting from its base 10a on which the wheel 17 is mounted and maintained in position by a collar 12 retained by a pin 14 engageable in holes 13 in the pillar. The annular member is in the form of a tyre inner tube 15 which on inflation is restrained against radially outward expansion by contact with the container 10 and is thus caused to expand upwardly to contact the adjacent sidewall of the tyre and associated wheel rim flange to provide a seal. The annular member may instead be an annular rubber bellows or a torus of foamed latex.