baber/WOPTO huggingface dataset:
Patent GB-1130930-A (GB)
Title: Fluid control valve construction
IPC: F16K3/24
Filed: 1965-12-16
Abstract: 1,130,930. Valves. GROVE VALVE & REGULATOR CO. 16 Dec.. 1965 [18 Jan., 1965]. No. 53512/65. Heading F2V. A valve and seat sub-assembly is fitted to a body 12 having an open cylindrical valve chamber 16, 17, 18 with axially spaced inlet and outlet ports 20, 22. The assembly comprises a tubular member 26 which fits the chamber and has inlet and outlet ports communicating with the ports 20, 22. The member 26 carries a slidably mounted valve member 50 co-operating with a seat 38 of resilient material such as nylon retained radially by a ring 34. An operating rod 58 is detachably connected to a screw actuating stem 82, 86, the connection being rotatable and including a nylon bearing 90. The sub-assembly is retained by a bonnet 76. In another embodiment, Fig. 3 (not shown), the tubular member (106) is secured to a body (122) of a second sub-assembly including an actuating diaphragm (140). The valve is responsive to outlet pressure communicated to the diaphragm from an outlet throat (160) through a passage (158, 156, 155) and constitutes a pressure reducing valve. The diaphragm is loaded by a constant fluid pressure through an orifice (144) from loading chamber (146). A number of such valves may be assembled in a common manifold block (170), Fig. 7 (not shown).
Patent GB-1425177-A (GB)
Title: Clay compositionp
IPC: C11D3/20
Filed: 1972-11-20
Abstract: 1425177 Clay composition PROCTER & GAMBLE Ltd 20 Nov 1973 [20 Nov 1972] 53625/72 Heading C1A [Also in Division C5] A composition in powder form comprises an impalpable smectite-type clay having an ion exchange capacity of at least 50 meq./100 g. to which has been added from 1-30% by weight of the clay of a straight or branched chain C 8 -C 20  fatty acid. The clay is either a dioctahedral expandable three-layer aluminium silicate of general formula Al 2 (Si 2 O 5 ) 2 (OH) 2  or a trioctahedral expandable three layer magnesium silicate of general formula Mg 3 (Si 2 O 5 ) 2 (OH) 2 , for example montmorillonite, volchonskoite, nontronite, hectorite, saponite or sauconite. The composition may be prepared by spraying the fatty acid on to a moving bed of the clay, for example in a rotating drum or inclined plane granulator or in a fluid bed. The composition of the invention may be used in detergent compositions (see Division C5).
Patent GB-1403766-A (GB)
Title: Apparatus for surface aeration of liquids
IPC: B01F3/04
Filed: 1972-11-21
Abstract: 1403766 Surface aerators J R KAELIN 21 Nov 1972 [23 Nov 1971] 53679/72 Heading B1C Apparatus for the surface aeration of liquids comprises a rotor 5 for circulating and introducing oxygen or oxygen mixture into a liquid, the interior of the rotor being subdivided into a plurality of liquid conveying channels 2 by means of blades 1. The blades I are provided at the rotor inlet side with cutting edges 3 when extended in a plane perpendicular to the axis of the rotor and cooperate with at least one stationary blade 4 mounted on the rotor shaft to perform a shearing action as the rotor rotates and wherein the angle of intersection between each cutting edge of the rotor and the cooperating cutting edge of the stationary blade successively increases and decreases. The cutting edges of both the rotor blades and the stationary blade may be of zig-zag or corrugated configuration.
Patent GB-1427380-A (GB)
Title: Drive sprockets
IPC: B27B17/08
Filed: 1973-11-22
Abstract: 1427380 Making sprockets OMARK INDUSTRIES Inc 22 Nov 1973 [24 Nov 1972] 54290/73 Heading B3A [Also in Division F2] A sprocket 22 for a saw chain, comprising chambers with side walls 44 and web segments 46 to receive drive tangs of the chain, is made from an annular washer stamped from a sheet of ductile material (Fig. 6a, not shown) this washer being bent to a wave shape (Fig. 6b, not shown) next the walls 44 are formed (Fig. 6c) then the walls 42 (Fig. 6d, not shown) and then notches 20 are formed for keying the sprocket on a hub 16. The sprocket is finally heat treated.
Patent GB-1123090-A (GB)
Title: Reel for pile fabrics and wood spreader bar
IPC: B65H75/02
Filed: 1966-12-05
Abstract: 1,123,090. Roll holder. C. O. WILLIAMS. 5 Dec., 1966, No. 54328/66. Heading A4G [Also in Divisions B6 and B8] A reel assembly for supporting a pile fabric web in such a manner that the layers of fabric wound upon the reel are separated from each other comprises a central wooden spacer far 44 and two end assemblies 46. Each end assembly has radial arms with hooks 52, and a central socket member 66 having tab portions (78, Fig. 8) which are attached to a flange in the arms. Each arm includes a longitudinally extending reinforcing rib (54, Figs. 5 and 7) and a lateral flange (50). The four arms shown are defined by two V-shaped members (Fig. 7) which are welded together at their apices. The outer ends of the arms curve inwardly, as at 84, and two channel shaped cross-bars 88 are welded across the corners to provide additional stability and rigidity of the end assemblies. A stand 16 with two uprights 18 is used to support the reel when assembled with the spacer 44 in the sockets 66. Spring loaded chucks 28 and 30 rotatably support bifurcated heads 36 and 38 which engage on the outside of the respective sockets 66. In such a stand, the fabric web can be hooked and wound in known manner on to the reel assembly. Once removed from the stand 16, the reel assembly can be slid into a rectangular base since it has no sharp protuberances.
Patent GB-1495947-A (GB)
Title: Containment of gas effluent from a metallurgical furnace
IPC: C21C5/40
Filed: 1974-12-16
Abstract: 1495947 Converter hoods R G GAW 16 Dec 1974 54335/74 Headings F4B and F4J A device for use with the exhaust hood 13 of a metallurgical furnace 11 comprises a movable closure plate 19 that is co-ordinated with the tilting of the furnace and partially restricts the cross-sectional area of the mouth 29 of the hood to increase the velocity of gas effluent passing there through so as to improve the efficiency in capturing waste gases leaving the furnace. The closure plate 19 may be water cooled and is mounted on tracks 17 supported by an expansion mechanism 23(a) 23(b) and 23(c) so that the plate 19 be raised or lowered with respect to the hood mouth 29. Driving means 21, which may comprise motors 45 driving wheels 47, are provided to move the plate along tracks 17 to positions (A) (B) or (C) that are coordinated with the three basic positions of the furnace, i.e. (a) the vertical position for steel refining, (b) tilted to the left for tapping as in Fig. 1, (c) tilted to the right for charging as in Fig. 2. In operation the draft of the hood is maintained at its normal operating condition and as the furnace is tilted the plate is moved to restrict the cross-sectional area of the hood mouth and so build up the velocity of effluent entering the hood. Once the closure reaches position (B) or (C) the expansion mechanism 23 is activated to bring the plate into close proximity of mouth 29 to prevent ingress of ambient air.  In a modified version of the device the plate may be chain driven Fig. 6 (not shown) or in a further version the driving means may comprise hydraulic or pneumatically operated cylinders (59) Fig. 7 (not shown).
Patent GB-1292656-A (GB)
Title: Electrical regulating system having constant amplitude/frequency ratio
Inventor: STUDTMANN GEORGE H
IPC: H02P27/06
Filed: 1969-11-05
Abstract: 1292656 Transistor pulse oscillators BORGWARNER CORP 5 Nov 1969 [26 Dec 1968] 54349/69 Heading H3T [Also in Division H2] In a variable frequency inverter (see Division H2) the frequency of a transistorized voltagecontrolled pulse oscillator 18 is controlled by variation of the base current of a further transistor 36 under control of fine and course potentiometers 60 . . . 62 and having temperature compensating diodes 56. . . 58.
Patent GB-1073080-A (GB)
Title: Electrical windings
Inventor: GLOVER WILLIAM FRANK
IPC: H01F27/28
Filed: 1965-12-23
Abstract: 1,073,080. Transformers and inductors. STANDARD TELEPHONES & CABLES Ltd. Dec. 23, 1965, No. 54589/65. Heading H1T. In an electrical winding having a fractional number of turns M equal to -, not an integer, the N winding is divided into N parallel-connected sections symmetrically disposed about the axis of the winding, each section linking M - times with a magnetic flux N distributed over the area of the winding and being such that any axial plane passing through the periphery of the winding, otherwise than between adjacent peripheral ends of any two sections, intersects M conductive paths on each side of the axis connected to carry current in the same sense. For example, in a 2/3 turn (Fig. 3) the winding consists of three parallelconnected sections each subtending 2/3 of the circumference to link 2/ 3  of the total flux distributed over the circle, and the said axial plane intersecting two conductive paths on each side of the axis. The winding may be arranged on an insulating spool disposed in the air gap between opposing cylindrical bosses of a potcore (Fig. 5, not shown). A circular cylindrical spool (16) (Fig. 6, not shown) has a peripheral groove (17) and radial slots (18, 18<SP>1</SP>) in the rim of each flange spaced at intervals of 360/N degree. The N conductors of the input lead (20) are passed through an axial hole (19) in the spool and spread out over one flange. Each conductor is taken through a slot (18) in this flange, wound M in the groove for - x 360 degrees and taken N out through an appropriate slot (18<SP>1</SP>) in the opposite flange. The output leads (22) are twisted together and taken out of the core with lead (2) through a hole in one boss of the potcore either to an external circuit or to a main winding in the core to form a transformer or autotransformer.
Patent GB-1287266-A (GB)
Title: Ventilation apparatus for tractors
Inventor: WELLESLEY RICHARD
IPC: B62D33/06
Filed: 1968-11-18
Abstract: 1287266 Ventilating tractor cabs R WELLESLEY 3 Nov 1969 [18 Nov 1968] 54693/68 Heading B7B [Also in Division F4] A tractor having a partially enclosed cab is provided with an elongate air inlet pipe extending upwardly therefrom, and a fan arranged for drawing air down the pipe and into the cab. The pipe is detachably secured about an air inlet of a casing having an air outlet communicating with the cab. The fan is located inside the casing or in a cab wall or roof aperture. The casing may be secured over a cab panel aperture containing an air filter.
Patent GB-1465649-A (GB)
Title: Safety harnesses
IPC: A62B35/00
Filed: 1974-12-18
Abstract: 1465649 Safety harness MESSERSCHMITT-BOLKOW-BLOHM GmbH 18 Dec 1974 [21 Dec 1973] 54711/74 Heading A3V A safety harness comprises a seat strap 2 connected by a damper (Fig. 2 not shown) via rope 4 to a chest strap 6.
Patent GB-1124060-A (GB)
Title: Moulding materials based on vinyl chloride polymers and stabilised against the action of heat
Inventor: TEVES DIETRICH
IPC: C08K5/17
Filed: 1965-12-31
Abstract: Polymers of vinyl chloride are stabilized with a conventional metal-containing stabilizer and ethylene diamine tetraacetic acid or an ammonium, alkali metal, or alkaline earth metal salt or an ester thereof.
Patent GB-1442559-A (GB)
Title: 2,3-dibromopropyl carbonates and flame resistant polymeric compositions containing said carbonates
IPC: C08K5/00
Filed: 1974-12-23
Abstract: 1442559 Fire retardants for polymers CHEMETRON CORP 23 Dec 1974 [21 Dec 1973] 55484/74 Headings C3P and C3R [Also in Division C2]  Compounds used as flame retardants in polymeric compositions have the formula where R is a divalent radical derived by removal of two hydrogen atoms from a hydrocarcarbon, halogenated hydrocarbon, hydrocarbyl ether or halogenated hydrocarbyl ether, wherein the two valence bonds are pendant from separate carbon atoms, and n is 0 or an integer from 1 to 10. Polymers that can be rendered flame resistant include acrylic resins, coumarone/ indene resins, epoxy resins, furan resins, melamine and urea resins, phenolics, polyamides, polyesters, polyalkenes, polystyrenes, polyurethanes and vinyl resins. The compounds can be used with conventional additives such as antimony oxide.
Patent GB-1374600-A (GB)
Title: Stand for christmas trees
IPC: A47G33/12
Filed: 1971-12-01
Abstract: 1374600 Stands K G GIDLOF 1 Dec 1971 [14 Dec 1970] 55870/71 Heading A4H [Also in Division E2]  A Christmas tree stand comprises a water container 2 having clasps 3, (4) for retaining the trunk and a foot 7, the container being connected to the foot by a ball joint 6, the concave portion of which comprises a fixed section 14 and a section 15 that can be urged against section 14 by an eccentric shaft 16 operated by a lever 17 to lock the joint. One clasp (4) includes an adjusting screw (8). The foot may be disc- or cross-shaped, or it may be replaced by a tripod or by a stand having four or more legs. Sections 14, 15 may alternatively be locked by a tightened band.
Patent GB-1293185-A (GB)
Title: Improvements in or relating to motor driven pumps and blowers particularly for oil-burners
Inventor: SJOTUN KYRRE GUTTORM
IPC: H02K17/04
Filed: 1969-11-19
Abstract: 1293185 Gear pumps DANFOSS A S 19 Nov 1969 56657/69 Heading F1F [Also in Divisions F4 and H2] A gear pump for an oil burner is driven by a rotor 16 of an electric motor, and comprises an inner toothed wheel 25 rotating with the shaft 9, an outer toothed wheel 26 meshing with wheel 25 and rotating with a ring 27, and discs 28, 29, containing passages and distributing grooves, on either side of the wheels 25, 26, these wheels rotating within a suction chamber 12. Return oil fills the chamber 22 in which the motor rotor rotates, and this chamber communicates with the suction chamber 12 via a non-return valve 24. The pump outlet communicates with an annular passage 37 surrounding bearing 8, this annular passage being connected with the pressure passage 31 via a passage 36 closable by pressure regulating valve 33. The valve 33 incorporates a spring- biased piston, the space 39 behind which communicates with the suction chamber 12 and which normally blocks passage 38 leading to the return oil chamber 22. An annular filter 30 surrounds the wheels 25, 26.
Patent GB-1187539-A (GB)
Title: Improved Frequency Responsive Train Speed Control Apparatus
IPC: B60L3/08
Filed: 1968-12-02
Abstract: 1,187,539. Automatic train control. GENERAL SIGNAL CORP. 2 Dec., 1968 [6 Dec., 1967], No. 57065/68 Heading B7N. [Also in Divisions F2, G3, and H3] The invention relates to a fail-safe overspeed detector for use in automatic train control A tachogenerator 13 coupled to an axle provides a speed signal in the form of pulses B. A control 10, which may be associated with the track or carried aboard the train, acts on a generator 11 which provides a D.C. desired speed signal. This acts firstly to control the frequency of a unijunction transistor oscillator 12 which provides pulses A at a frequency about 100 Hz. above the frequency of the tachogenerator pulses corresponding to desired speed. A circuit 14 produces the sum C of the two sets of pulses. The sum frequency is applied to a detector 15 which comprises a capacitor 45 which is charged by the desired speed signal whenever a pulse is received from circuit 14. The voltage on capacitor 45 triggers a unijunction transistor 47. The detector thus produces a train of pulses D whenever the frequency of C is greater than a value set by the desired speed signal. The pulses D are amplified by a monostable multivibrator 16 and applied to a capacitor 52 which integrates the pulses. A signal E rises, while the detector produces pulses D, until it triggers a Schmitt trigger circuit 18. When the Schmitt changes state a feedback circuit 19 suppresses pulses A. Provided now the output of tachogenerator 13 is below the desired speed value, pulses D disappear, the integrator output E falls and the Schmitt 18 resets. This repeats continuously while the speed remains below the desired value so that the Schmitt trigger produces a square wave output signal G having a frequency dependant on the speed error. So long as this signal is present and above a minimum frequency a driver circuit 20 maintains a relay 21 energized and the train is driven. If however speed becomes excessive, tachogenerator 13 produces pulses above the desired speed frequency, pulses D continue and the Schmitt 18 remains in its set condition. There is no signal G and relay 21 drops out operating the brakes of the train. This will also occur if any of the circuitry 12-19 fails. If the tachogenerator fails circuit 14 is arranged so that no signal C is generated. The signal C together with another output F of the Schmitt trigger 18 are applied to the two inputs of a bistable 22 which consequently produces a square wave H while the speed is below the desired value. Signal H is applied through contacts 73, 75 of relay 21 to a second driver circuit 23 holding relay 24 energized. If the speed becomes excessive, and signal H disappears but, due to a fault, relay 21 does not change over, the driver 23 releases relay 24 to give a fault indication, but if the relay 21 operates correctly the driver 23 is connected by contacts 73, 74 to pulses C and the relay 24 remains energized. The oscillator 12 and detector 15 are corrected for temperature changes by a P.T.C. resistor 31, 93.
Patent GB-1146866-A (GB)
Title: Improvements in or relating to radially clamping grips
IPC: C08J9/04
Filed: 1966-12-20
Abstract: 1,146,866. Twisting apparatus; false-twist apparatus. BATTELLE DEVELOPMENT CORP. 20 Dec., 1966 [23 Dec., 1965], No. 57066/66. Heading D1D [Also in Division E2] A clamping device comprises a rigid cylindrical body 1 having a passage 2 extending axially therethrough, a resilient tubular member 10 mounted in the passage and a plurality of wear-resistant flexible filaments distributed about the axis of the body in substantially parallel alignment to form a bundle 8 and flaring outwardly at one end of the tubular member to form a funnel, the arrangement being such that upon introduction of an object of a substantially circular cross section into the funnel to be gripped by the bundle of filaments, the filaments are forced apart along the bundle to surround and engage the object and to enlarge the internal diameter of the tubular member whereby the latter assists the filaments each to exert a radial clamping pressure on the object. As shown, the filaments which may be made of steel or glass, are anchored at the funnel end on a member 12. The member 10 may be made of rubber a synthetic foam. In a similar arrangemeant, Fig. 5 (not shown), adapted for use as a twisting member in means for spinning texile fibres, into yarn, the rigid body (20) is secured to a pulley (21) which is driven by a belt (22). The device may also be used for false twisting.
Patent GB-1163608-A (GB)
Title: Drift Compensating Circuit for Amplifier
IPC: H03F3/34
Filed: 1966-12-21
Abstract: 1,163,608. Drift correction for operational amplifiers. INTERNATIONAL BUSINESS MACHINES CORP. 21 Dec., 1966 [27 Dec., 1965], No. 57204/66. Heading G4G. [Also in Division H3] In a drift compensating circuit, particularly for an operational amplifier, the output of the amplifier 4 is compared at 10 with a reference voltage 11, the output of the comparator 10 being gated at 13 by reset signals 14 and arranged to charge a capacitor 15 which is connected via a buffer amplifier 16 to the input of amplifier 4 so as to compensate for errors due to drift and the initial values of input signals in any of amplifiers 1 . . . 4 at the beginning of a computing cycle. The comparator 10 (Fig. 2) may be formed by an emitter-coupled pair of transistors 20, 22, the output of which is passed by an amplifying transistor 30 to a field-effect transistor AND gate 40 the conductivity of which is controlled by signals at 14 amplified at 41. The system is reset by applying a negativegoing signal at 14 which turns on transistor 41, turning on the AND gate 40, diode 42 isolating the control gate 39. Capacitor 15 follows the output of the comparator 10, providing a compensating signal which is fed back via fieldeffect transistor 50 and resistor 17 (Fig. 1) to the input of the amplifier 4 so as to maintain the output Vo at its zero level. A computing cycle is initiated by feeding a positive-going signal to 14 which cuts off transistors 41, 40, so that the charge remaining on capacitor 15 provides compensation. Figs. 4, 5 (not shown), depict the invention applied to summing and differential amplifiers.
Patent GB-1422798-A (GB)
Title: Apparatus for vibration welding of sheet materials
IPC: B29C65/00
Filed: 1972-12-12
Abstract: 1422798 Laminates CROMPTON & KNOWLES CORP 12 Dec 1972 [13 Dec 1971] 57325/72 Heading B5N  Apparatus for joining two or more sheet materials 23, 24 at least one of which contains thermoplastic material comprises means to advance the sheet materials to be joined from a source of supply in superimposed condition, a plurality of spaced ultrasonic vibration transmitting members 16 each having a working surface 30 arranged to contact one side of the sheet materials, each member being offset from adjacent members in the longitudinal direction of the sheet materials and being arranged so that every point across the width of one of the sheet materials comes into contact with at least one of the working surfaces and anvil means 18 located on the other side of the sheet materials comprising spaced projections 21 having opposing surfaces 22 for co-operating with the working surfaces to produce welds in portions of the sheet materials located between the working surfaces and opposing surfaces. Projections 21 may be arranged in a pattern to create a decorative welding pattern. Additional sheet materials, e.g. a fluffy non-woven batt, may be introduced between sheet materials 23 and 24 to produce, for example, a quilted product. Rotatably mounted roll 18 may be replaced by a conveyer having projections for co-operating with the working surfaces of the vibration transmitting members.
Patent GB-1434230-A (GB)
Title: Overload testing of chains
IPC: G01L5/04
Filed: 1973-12-11
Abstract: 1434230 Overload indication for chains RUD KETTENFABRIK RIEGER & DIETZ 11 Dec 1973 [12 Dec 1972] 57334/73 Heading G1W A lashing down or belaying chain 13 is tested for overload in use by connecting a detachable test link 14 between links 11, 12 which test link deforms plastically and visibly when the chain is overloaded. The test link comprises a pair of U-shaped members 18, 19 each having a socket at one end receiving the end without a socket of the other member, locking-pins passing through holes in the sockets and engaging grooves in the other ends. An abutment member 24 is provided in the link. On overload, the sides of the link abut member 24, and the locking-pins protrude from the link, Fig. 4 (not shown). The locking-pins may take the form of a single U-pin.
Patent GB-1148539-A (GB)
Title: V-internal combustion engine having crankcase emission system
IPC: F01M13/02
Filed: 1966-12-22
Abstract: 1,148,539. Crank-case ventilation. FORD MOTOR CO. Ltd. Dec.22, 1966 [Jan.27, 1966], No.57413/66. Heading F1B. An intake manifold 22 of a V-engine forms an enclosed space 24 between the cylinder banks which is connected to the crank-case and from which crank-case gases are ventilated to the manifold passages 28, 30 through an opening 50. The opening 50 contains a spring-loaded valve (54) Fig. 2 (not shown) which is moved by intake manifold suction to restrict the flow of gases at high suction.