baber/WOPTO huggingface dataset:
Patent GB-1352235-A (GB)
Title: Carbon black products and carbon black containing products
IPC: C08K3/04
Filed: 1971-09-24
Abstract: 1352235 Carbon black CABOT CORP 24 Sept 1971 [25 Sept 1970 7 Dec 1970] 44688/71 Heading C1A [Also in Division C3] An oil furnace carbon black has a BET N 2  surface area of less than 350 m<SP>2</SP>/gm, a nigrometer scale value of less than 81À5 and a dispersion rating of at least 80%. Methods of determining these parameters are given in the Specification. Such a black may be prepared via a process in which hydrocarbon feedstock is injected as a plurality of coherent streams into the periphery of an accelerated stream of combustion gases, followed by an appropriate quenching and separation steps. The black has properties approaching those of channel black, and may have a preferred dispersion rating of 90% and a DBP absorption value of 40 to 150 lbs. preferably less than 80 lbs./ 100 lbs. of black. The black is used as a pigment in halogen containing vinyl resin compositions in an amount of 0À1 to 5% by wt., of the resin. The resin is preferably a homopolymer or copolymer of vinyl chloride which may be in a rigid or flexible form. The resin may be in plastisol form and the composition may contain a plasticiser, e.g. dioctyl phthalate, in an amount of 2-50% by wt. of the resin. When a plasticizer is used, a masterbatch composition containing more than 15% by wt. of the plasticizer of carbon black may be made up, before the resin composition is formed.
Patent GB-1388938-A (GB)
Title: Control valves
IPC: F15C3/14
Filed: 1972-09-28
Abstract: 1388938 Fluid-pressure servomotor systems VICTOR PRODUCTS (WALLSEND) Ltd 17 Sept 1973 [28 Sept 1972] 44833/72 Heading G3P The inclination in one plane of a member, such as an instrument table or a grader blade, is controlled by a pivoted mass 5, Fig. 1, controlling the discharge from orifices 8, 9 each of which is supplied through a fixed orifice 11, 15, the junction points 10, 16 being connected directly or through a relay valve 18 to a ram 17 coupled to the member, the inclination of the member in a second plane being similarly controlled by a further pair of orifices in a plane at an angle to the first plane. In Fig. 3, the fluid-pressure differential controlled by the pivoted member is applied to spaces 33, 34 between diaphragms 29, 30, 31 to adjust a relay valve 28 and the pressure differential applied to the ram. The mass 5 may be suspended on a spring 21, Fig. 2, (not shown) to co-operate with four orifices 90 degrees apart. A flange to co-operate with all of the orifices may be arranged horizontally on the mass or the mass may co-operate with a single orifice to control a ram biased to one extreme position. A three-part relay valve may be used instead of the valve 18 to control a differential ram having full hydraulic pressure applied to one side. A screw (23), Fig. 2, locks the mass during transit and adjustable screws stops (24) limit its radial movement in operation.
Patent GB-1474160-A (GB)
Title: Gear grinding machine
IPC: B23F5/06
Filed: 1975-10-03
Abstract: 1474160 Grinding gears HURTH VERWALTUNGS GmbH 3 Oct 1975 [13 Dec 1974] 45152/76 Divided out of 1474159 Heading B3K A gear grinding machine comprises a grinding wheel 19 mounted on a grinding head 20, a workpiece support shaft 4, a dividing head 7 coupled to the support shaft for rotating the shaft to bring the flanks of successive teeth of the gear 5 into engagement with the workpiece, a driving drum carriage driveable to reciprocate the shaft transversely to the axis thereof, a driving drum associated with the shaft for turning the shaft through a required angle during a grinding operation, driving bands for imparting turning motion to the drum in response to reciprocation of the drum carriage, and means for imparting a supplementary motion to the grinding wheel transversely relative to the workpiece, without substantially modifying loading imposed on the driving bands, including a cam, ramp or template 70 engaged by a follower 71 which imparts an axial reciprocation to the spindle 22 on which the wheel 19 is mounted. The carriage 2 is reciprocatable by known means on the machine frame in directions transverse to the axis of the shaft 4 which, at one end, mounts the gear 5 to be ground and, at the other, the dividing head 7 which is coupled to a sleeve of the driving drum and the shaft 4. The drum is connected by bands to a holder slidable on a jib member vertically adjustable in a pedestal 14 screw mounted on the frame. The grinding wheel 19 is clamped to a spindle 22 mounted in bearings 23 in a grill 24 and connected by a flexible coupling 27 to an electric motor 26. The grill is axially adjustable in the head by rotation of a screw 29 engaging a nut 28 formed on the grill, the screw being rotatable through a clutch 32 by gearing 30 driven by manual or motor means. The head is angularly adjustable to determine the pressure angle, and a pedestal 21 is adjustable to the helix angle. The supplementary transverse movement is produced by coupling the clutch 32 to a lever 73 operatively connected to a feeler 71 engaging a template 70 on the carriage 2 to effect rotation of the screw and hence axial movement of the grinding wheel to modify the involute shape of the tooth produced by the rolling movement produced by the bands and drum. Electric, hydraulic, pneumatic or mechanical transmissions may be used.
Patent GB-1273615-A (GB)
Title: Improvements in current mode diode function generator
IPC: G06G7/28
Filed: 1969-09-16
Abstract: 1,273,615. Diode function generators. GENERAL ELECTRIC CO. 16 Sept., 1969 [23 Sept., 1968], No. 45599/69. Heading G4G. The diodes D 1  ... D n  of a diode function generator are connected between a voltage source V s  and a current source 20 so that the diodes are normally maintained in a conducting condition. The source 20 draws current from the source of reference potential and hence a voltage -V g  appears on the bus-bar 18, and this voltage is adjusted to approximate the average forward voltage drop across the diodes. Diodes CR 1 , CR 2  and resistance Rg are connected between bus 18 and earth and are chosen to compensate the voltage drop due to the semi-conductive properties of the diodes which varies with temperature. As the input voltage E; increases, current flowing via R 1  and R 11  increases, current through diode D 1  decreases and the diode ceases to conduct. The diodes cease to conduct in turn as E i  increases through successive break points and the slope of the generated function increases montonically. The circuit includes amplifiers 12, 16 for inverting the input and output voltages and applying any necessary scaling factors.
Patent GB-1328028-A (GB)
Title: Gas-filtering apparatus
IPC: B01D46/04
Filed: 1971-09-30
Abstract: 1328028 Cleaning air-filters AURAN RAUTATEOLLISUUS OY 30 Sept 1971 [5 Oct 1970] 45606/71 Heading BIT Cleaning of filter pockets 6 in compartments 4 through which air flows inwardly from a dirty-air duct 5 into a clean-air exit duct 8 via a chamber 12, under the action of a suction fan 7, is effected, preferably compartment by compartment, by repeatedly reversing the flow through the pockets. Reverse-flow air is supplied by a fan to a duct 11 which communicates, via the chamber 12 with the insides of the filter pockets, under the control of flap valves 16 (one for each compartment 4), each of which either connects the corresponding chamber 12 to the clean-air exit duct 8 or to the supply duct 11 of reverse-flow air. Dust shaken from the filter pockets drops into a hopper having a screw conveyer 10. Before reaching the dirty-air duct 5, the input air is drawn through a primary gravity-and-inertia separator 2.
Patent GB-985724-A (GB)
Title: Improvements in or relating to fasteners for conveyor and like belts
Inventor: NEALE LESLIE ARTHUR
IPC: F16G3/02
Filed: 1962-12-03
Abstract: 985,724. Belt fastenings. HAYDENNILOS Ltd. Nov. 13, 1963 [Dec. 3, 1962], No. 45621/62. Heading F2Q. A fastener for a conveyer belt comprises U- shaped fastening elements 1, stapled to the belt ends A, B so that each element on one belt end is aligned with a corresponding element on the other belt end, coupled together by links 7 and two parallel flexible hinge elements 8, e.g. of wire rope, the links 7 alternating with pairs of aligned fastening elements 1, with a link 7A at each side of the fasteners. The links 7 may be formed of flattened tube, Fig. 3, or may be solid, Fig. 10, with individual holes for the hinge elements 8. A set of links may be joined together by transverse wires or strips welded thereto, or may be formed as an integral unit by machining from solid. The side links 7A are preferably of the type shown in Fig. 10, and one of these may be welded to the hinge elements 8, the other being retained by split pins 9.
Patent GB-1067606-A (GB)
Title: Building of prefabricated elements
IPC: E04B1/342
Filed: 1965-10-29
Abstract: 1,067,606. Prefabricated buildings. A. CONIL. Oct. 29, 1965 [Jan. 5, 1965], No. 45837/65. Heading E1A. A prefabricated building comprises a hollow central core 1 carrying an elevated floor framework and a roof framework which are provided with appropriate cladding panels, inter connected at their periphery by arcuate wall panels and reinforced by circumferentially disposed buttresses 12, 13, additional tension cables or rods 14 being provided as shown. The core 1 may carry all service conduits and terminute in a chimney 4. The arcuate wall panels are furnished with doors and windows as necessary. The building may have a balcony with or without a roof therefor and be internally divided by partitions. The cladding panels may be of metal, wood or concrete.
Patent GB-1406322-A (GB)
Title: Fluid pressure valve assemblies
IPC: F16K31/365
Filed: 1972-10-06
Abstract: 1406322 Fluid-pressure servomotor systems GARRETT CORP 6 Oct 1972 [7 Oct 1971] 46262/72 Heading G3P A fluid-pressure servomotor system comprises a main valve 14 actuated by the difference in pressure between the top surface 20 of a diaphragm 22 and the bottom surface of a piston 24 in order to keep the pressure downstream of the valve within a predetermined range. Fluid-pressure upstream of the valve is used as a source of pressure for the actuator 16 and is admitted after actuation of a solenoid valve 34 to the chamber 18 above the diaphragm via a pair of check-valves 53, 54. Besides chamber 19, pressure downstream is applied to a pair of regulating valves 43, 47. When the valve 34 is in the position shown, the spring 30 in the actuator exhausts chamber 18 by raising the diaphragm and the fluid lifts the checkvalves off their seats exhausting rapidly through outlet 38 in the valve 34. The main valve quickly shuts under these conditions. When the solenoid valve is actuated fluid-pressure builds up slowly in chamber 18 since the regulating valve 43 dumps some fluid downstream until the downstream pressure builds up to act on the back face 45 of the valve. When the regulated pressure approaches the desired range downstream pressure opens the regulating valve 47 to vent the source fluid via valve seat 49. The main valve-member therefore moves towards the closed position. The position of the main valve-member 14 may be indicated electrically by a switch 57 or visually, 58.
Patent GB-1363418-A (GB)
Title: Gas burner arrangement
IPC: F24C3/10
Filed: 1971-10-04
Abstract: 1363418 Controlling burners RADIATION Ltd 4 Oct 1971 [29 Sept 1970] 46383/70 Headings F4F and F4T A gas-burner arrangement comprises a main burner 1, a probe heater burner 4, a probe 3 of a flame-failure device arranged so as to be heated by the heater burner, a lightning jet 6 arranged to provide a lighting flame for lighting the heater burner, the main burner 1 being between the lighting jet and the heater burner and ignition means 5 for igniting the lighting jet, so that when the lighting flame lights the heater burner and the probe 3 is warmed, thereby causing the flame-failure device to permit gas to pass to the main burner, the main burner is automatically ignited. As illustrated, the ignition means 5 is a pilot jet, but it can comprise a spark or electric-filament device. The arrangement is shown applied to a gas oven, the main burner 1 being at the rear of the oven and the jets 5 and 6 being outside, a guidesleeve Y being provided in the rear oven-wall to channel the lighting flame through to the burners 1 and 4 and to provide a visible indication, from the front, that the jets 5, 6 are alight. Adjustment of the lighting-jet and heaterburner flames is provided by variable restrictors 9, 10 on the respective supply-pipes. The probe 3 may be a mercury vapour probe.
Patent GB-1438834-A (GB)
Title: Reciprocating compressor having an intake valve and control  means therefor
IPC: F16K/
Filed: 1973-10-04
Abstract: 1438834 Reciprocating compressors MIDLAND-ROSS CORP 4 Oct 1973 [10 Oct 1972] 46471/73 Heading F1N A twin cylinder reciprocating piston type aircompressor has a cylinder head assembly 19 comprising two pairs of co-axial bores 50, 84, each bore 50 containing an inlet valve assembly 28 controlling air flow from an inlet manifold 54 to a respective cylinder 11 or 12 and each bore 84 receiving a fluid-actuated piston 86, 88 slidable against the action of a spring 90 to hold its intake valve open and thus unload the compressor. Fluid for moving the pistons 86, 88 is delivered to the bores 84 through a passage (94), Fig. 2 (not  shown) in a gasket 96 sealed against the head surface 22 by a cover plate (98), the latter having a connection (102) for receiving, via a governor valve (104), pressure from a reservoir fed by the compressor. The head is water cooled and each cylinder has a delivery valve assembly 26. Removal of the cylinder head affords access to the valves without having to tamper with the unloading pistons.
Patent GB-1196807-A (GB)
Title: A process for the production of a Polyurethane Coating
IPC: C08G18/64
Filed: 1967-10-20
Abstract: 1,196,807. Polyurethane coatings. HENKEL & CIE G.m.b.H. 20 Oct., 1967 [21 Oct., 1966], No. 46525/67. Heading C3R. [Also in Divisions B1-2] Polyurethane coatings are prepared by reacting in a solvent an organic polyisocyanate with products of addition of phenols or phenol derivatives which contain at least one exchangeable hydrogen atom to unsaturated, straight- or branched-chain alcohols with 10 to 48 carbon atoms, which may be alkoxylated, and/or their reaction products with ethylene oxide or propylene oxide. Suitable phenols or phenol derivatives are phenol, polyhydric phenols, alkyl phenols, halogenated phenols and polynuclear phenols. Alcohols suitable for forming the addition product are decenol, dodecenol, hexadecenol, oleyl alcohol, linoleyl alcohol, linolenyl alcohol and particularly alcohols obtained from natural oils, fats and waxed and unsaturated Guerbet alcohols. The reaction products of the addition products with 1 to 6 mol. of ethylene oxide or propylene oxide per mol. of addition product are particularly useful. Conventional aliphatic or aromatic polyisocyanates may be used. Suitable solvents are ethyl acetate, ethylene glycol diacetate, benzene, toluene, xylene, methylene chloride and dioxan. Substantially stoichiometric quantities of polyisocyanate may be used, but when ethylene oxide or propylene oxide addition products are used an excess of polyisocyanate up to an NCO : OH ratio of 2À5 : 1 is recommended. Cross-linking of the products may be achieved by including trimethylolpropane in the reaction mixture and catalysts, especially triethylamine, may be used. The addition products may be prepared by reacting a phenol or phenol derivative with an unsaturated straight- or branched-chain alcohol with 10 to 48 carbon atoms, which may be alkoxylated at 100 to 250 C. in the presence of acid aluminium silicates as catalysts, especially aluminium silicates activated with mineral acids with a pH value of 3 to 5, which are used in an amount of 1 to 15% based on the reaction mixture. They may be ethoxylated or propoxylated in the conventional manner. Numerous examples of the addition products are described.
Patent GB-1492559-A (GB)
Title: Method for determining and indicating the preferred direction of rotation of a vehicle tyre
IPC: G01M17/02
Filed: 1974-10-30
Abstract: 1492559 Determining the preferred direction of rotation of a pneumatic tyre UNIROYAL AG 30 Oct 1974 [6 Nov 1973] 46979/74 Heading B7C The preferred direction of rotation of a pneumatic tyre is determined and indicated on the tyre as by a mark, e.g. an arrow moulded or painted thereon. Such determination comprises in one method rotating the tyre, when on a steered wheel of a vehicle, in one direction and measuring the forces acting on the tyre along its axis of rotation when the self-aligning torque acting on the tyre is zero, and measuring the force S when the tyre is rotating in the opposite direction and the self-aligning torque is zero. The preferred direction is that in which the force S is greater. In a second method, the determination comprises rotating the tyre, when on a steered wheel of a vehicle, in one direction and (a) measuring the first slip angle α M  with the selfaligning torque zero and (b) measuring the second slip angle α S  with the tyre prevented by the locked steering linkage from turning about its vertical axis; and measuring the slip angles α M , α S  when the tyre is rotating in the opposite direction. The preferred direction is that in which the difference between the slip angles α S , α M  is smaller.
Patent GB-954279-A (GB)
Title: Improvements in propelling pencils
IPC: B43K21/14
Filed: 1962-12-13
Abstract: 954,279. Pencil holders. E. SCHWANHAUSSER, and G. SCHWANHAUSSER, [trading as SCHWAN-BLEISTIFT-FABRIC SCHWANHAUSSER & CO.]. Dec. 13, 1962 [Jan. 8, 1962], No. 47154/62. Heading B6P. In the writing or forward. position, Fig. 1, a clamping tube 6 is held in the forward position against the bias of a spring 12 by detent catches 15, and engages a jaw or collet member 4 of a lead guiding tube 5, which in turn retains the lead 3 in the writing positions. A spring 10, relatively weaker than the spring 12, biases the lead guiding tube 5 up into the clamping tube 6. On releasing the detent catches 15, tubes 5 and 6 move rearwardly together until a flange 8 on tube 5 abuts a longitudinally adjustable member 13. The spring 12 then moves the clamping tube 6 rearwardly relative to the tube 5 releasing the jaw member 4, so that the lead 3 is free to fall under gravity. During the retraction of the tubes 5 and 6, leaf springs 2 of a catching device close to form a lead retaining cup, Fig. 3. The writing length of the lead 3 is therefore automatically adjusted in accordance with the position of the member 13, which is adjusted longitudinally by turning the head 14 relative to the outer casing 1 of the pencil. Fig. 4 shows the member 13 passing through longitudinal slots in the clamping tube 6 before engaging the screw-thread on the inner surface of the casing 1.
Patent GB-1262558-A (GB)
Title: Tape reel motor control apparatus
IPC: G11B15/43
Filed: 1969-09-26
Abstract: 1,262,558. Automatic position control. INTERNATIONAL BUSINESS MACHINES CORP. Sept.26, 1969 [Oct.8, 1968], No.47508/69. Heading G3R. In a system in which a capstan drive transports tape from one reel through a column loop store to another reel, signals from a number of loop position detectors spaced along the column control the reel motors through logic circuitry to reduce variations in the length of the loop. In Fig. 1, magnetic tape 12 forms a loop in a vacuum column 10 which receives or supplies tape according to whether the capstan (not shown) is moving the tape in the forward or backward direction shown. The output polarities of photo-electric or pressureresponsive switch type detectors 1-6, which depend on whether the loop of tape is positioned above or below them, automatically control, through logic circuits, a reversible motor driving a tape reel 11 to correct deviations of the loop from a desired position between detectors 3 and 4. The arrangement of AND, OR and inverter circuits is such that if, for example, in the case of a forwardly driven tape, the loop enters the zone between detectors 5 and 6 from above, the reel motor is energized to remove tape from the column, but, if entry into this zone is from below, the reel motor is not energized so that it continues to move the loop towards its desired position by coasting. When the loop is between detectors 4 and 5, a further control system operates in a similar manner except that the reel motor is only energized if the loop has arrived at its position between detectors 4 and 5 from one between detectors 2 and 3 on the other side of its desired position. When the loop is between detectors 3 and 4, the reel motor is dynamically braked. The reel motor is not energized if the loop is above its desired position in the case of a forwardly driven tape. In the case of a backwardly driven tape, control systems associated with detectors 1-3 control operation of the reel motor in the reverse direction in a manner similar to that in which it is controlled in a forward direction by detectors 4-6. If the capstan is stopped, detectors 1-6 co-operate to restore the loop to its desired position. Safeguards are provided to prevent simultaneous removal of the tape from the column by the capstan and the reel motor and to prevent energization of the reel during braking. In a modification, a large number of vacuumoperated switches at different levels apply pulses from a voltage divider to pulse detectors controlling the logic circuits to give more accurate positioning.
Patent GB-1089546-A (GB)
Title: Improvements relating to infra-red direction finders
Inventor: STAUFF EMILE
IPC: F41G7/30
Filed: 1964-11-24
Abstract: 1,089,546. Infra-red direction finders. NORDAVIATION SOCIETE NATIONALE DE CONSTRUCTIONS AERONAUTIQUES. Nov. 24, 1964 [Nov. 28, 1963], No. 47814/64. Heading H4D. [Also in Division G2] A combined infra-red direction finder and optical viewer incorporates a radiation receptor for receiving visible and infra-red radiation along parallel paths together with a support permitting training of the radiation receptor about two perpendicular axes, at least one of the latter passing through the centre of gravity of the whole. In one embodiment coaxial bearings in a frame supporting the infra-red and visual devices provide for training in elevation and a recess in the bottom of the frame provides for azimuthal training, the corresponding axes intersecting at the centre of gravity, Fig. 1 (not shown). In another embodiment the visual image path is periscopic, the infra-red detector is mounted on the periscope housing, and the whole is pivotable about a swivel joint, Fig. 2 (not shown). In a further embodiment a periscopic construction incorporates a rotatable prism for training in elevation and the whole is rotatable in azimuth, Fig. 3 (not shown).
Patent GB-478379-A (GB)
IPC: D01H5/50
Abstract: 478,379. Drawing-apparatus for fine spinning frames. KATO, E. Aug. 28, 1936, No. 23681. Convention date, Oct. 25, 1935. [Class 120 (ii)] In fine spinning frames wherein the sliver moves vertically in alignment with the axes of the spindles, two sets of drawing- apparatus are suspended from an upper rail by their common stand 8, and the rollers are weighted by levers 11 connected to the saddles by tie rods and subjected to a vertical force comprising, as shown, encased spring-means 13, release links 12 being mounted at the lever end, or at the upper end of the spring-means. Specification 478,378 is referred to.