baber/WOPTO huggingface dataset:
Patent GB-1266557-A (GB)
IPC: E21B33/06
Filed: 1969-08-08
Abstract: 1,266,557. Wells &c. CAMERON IRON WORKS Inc. 8 Aug., 1969 [4 Oct., 1968], No. 39896/69. Heading E1F. A blowout preventer comprises a housing 21 and an annulus 33 of deformable material having rigid plates 43 arranged on one end the innermost ends of the plates being adjacent the bore 35 of the annulus when the latter is unconstricted. The plates are so arranged that their effective radial extension increases as the annulus is radially constricted. The plates form one of the flanges of inserts 41, the sides of the webs 42 of which lie in planes of least strain of the material during movement of the annulus from unconstricted to constricted positions. The annulus has annular projections 44 radially outside of the inserts. The annulus is constricted by segments 36 carried by radially acting pistons 63. Passages 39 permit well pressure to act on the outer side of the annulus.
Patent GB-1289215-A (GB)
IPC: G01N27/26
Filed: 1970-08-13
Abstract: 1289215 Electro-phoretic separation LKB-PRODUKTER A B 13 Aug 1970 [18 Aug 1969] 39149/70 Heading C7B Ionized substances are electro-phoretically separated in a mixture containing ions of the same polarity but different mobilities (e.g. beetroot juice) by introducing a leading ion, having the same polarity and greater mobility than any of the ionized substances, between the mixture and an electrode to which the substances are migrating, and adding spacer ions of the same polarity but mobilities differing by small and substantially equal amounts to the mixture so that the ionized substances migrate to form consecutive zones in the electric field, the spacer ions also forming zones or spacers between zones of ionized substances. The spacers may be derived from polyethylene and/or polypropylene glycol, polyvinyl alcohol or ester thereof, oligo- or poly-saccharide, or reaction of a compound containing one or more OH groups with polyphosphoric acid. Polyethylene glycol may be provided with one or more charges by forming ester or ether bonds e.g. by reacting glycol with succinic acid anhydride; other examples are specified. Electro-phoretic separation may be carried out on a cellulose acetate strip, one end dipped into an anodic buffer solution containing NaCl, the other end into a cathodic buffer solution containing Na ascorbate or trisglycinate or Ca lactobionate.
Patent GB-1290614-A (GB)
IPC: G06M1/38
Filed: 1970-01-28
Abstract: 1290614 Multi-tariff registers SANGAMO WESTON Ltd 19 April 1971 [28 Jan 1970] 4137/70 Heading G4D One or other register 10, 20 is driven by a differential mechanism 18 when the opposite crown wheel 28, 17 is halted by a bell-crank 40 engaging a pin 39, 38 with star-wheel 26, 19. The planet wheel carrier is secured to a spur wheel 30 driven step-by-step by a motor 33 in response to + ve and - ve pulses at 34 from an electric watt-hour meter 35, eachstep corresponding to one tooth of the star-wheels.
Patent GB-1290621-A (GB)
IPC: G06K7/00
Filed: 1970-10-09
Abstract: 1290621 Checking credit cards TOKICO Ltd 9 Oct 1970 [17 Oct 1969 24 Oct 1969 25 Oct 1969] 48118/70 Headings G4M and G4V Apparatus for detecting a code number carried by a code member, such as a credit card, includes a code number storage system and a circuit which generates an output to control an operating circuit when a detected code number is in accord with a preset stored number. In one embodiment a customer at a petrol station inserts a credit account card 10, bearing his code number, into the slot of a card reader 12 on a pump stand 11. If the code number does not agree with any preset number corresponding to the code of an invalidated credit card, then there is no signal from an operating circuit 13, a switch 14 remains closed and the petrol pump 20 may be started by lifting a nozzle 15 from its rest and turning a handle 16 to zero a counter 17 and close motor switch 18. As shown in Fig. 2, the card reader 12 includes a series of microswitches 26a-26n, some of which are closed upon insertion of a card having recesses and projections representing the code number. Other types of card readers may be used, including magnets and reed switches closed by'metal bits on the card, photoelectric elements sensing holes in the card or a high frequency magnetic field modulated by metal bits on the card. Signals generated by closure of the switches 26a-26n are received at amplifiers 28a-28n and relays 29a-29n in a safety power circuit 27 to close electro-magnetically coupled relay switches 31a-31n. A safety power source 30 may include an isolating transformer (40) (Fig. 3, not shown), a full-wave rectifier (41), constant voltage Zener diodes and a transistor switching circuit connected to the load circuit terminals p and q. If a short circuit occurs in the load, transistors across the rectifier switch to a non-conductive state thus effectively opening the power supply circuit to avoid high currents and sparks in the region of petrol fumes. Signals from the relay switches 31a-31n corresponding to the code on an inserted card are fed to a code number presetting circuit 33 via a card insertion confirmation switch.32 and series diodes (50a-50n) (Fig. 4, not shown). The presetting circuit comprises a voltage supply matrix of diodes and resistors connected to a series of grouped presetting switches (53), each group having a single output to an inverter (54). The switches (53) are closed to represent code numbers of invalidated credit cards, each group representing a card. The matrix connections ensure that an output to the inverter occurs only when a card closes a set of the switches 31a-31n exactly matching one of the preset groups of switches (53). The common outputs of the inverters are connected to an amplifier (56) and to the operating circuit 13 which, in the event of an invalidated card being inserted, may prevent operation of the pump 20 by opening the switch 14 to the motor 19, sound an alarm and/or lock the card in the reader.
Patent GB-1296205-A (GB)
IPC: F16L9/14
Filed: 1968-12-09
Abstract: 1296205 Porous tubular or plate like laminates LANGLEY LONDON Ltd 9 Dec 1968 [9 Dec 1968] 58423/68 Heading B5N [Also in Division F2] A porous tubular or plate-like element is made from two or more layers of resin bonded vegetable, mineral or synthetic plastics fibres bonded together by a cured resin, one layer being a mat of irregularly arranged fibres 2 and another of woven fibres 1 and a water permeable membrane. As shown the layer 2 is placed on the layer 1, impregnated in a bath 5 containing a resin/solvent mixture, excess mixture is drained off at point 6, the solvent evaporated off in an oven 8, the strip cut into sheets, wrapped about a mandrel 10 to produce tube 12, heat shrinkable film 11 is placed about the tube 12, the impregnating resin cured in oven 13 and the mandrel removed after curing is complete prior to the tube 12 being ground to the required dimensions. Preferred materials of construction are glass-fibre and polyester or epoxy resin. The amount of resin left after drying in the oven 8 should be 30-35% of the total weight, a higher content reducing the elements porosity but increasing its mechanical strength and vice versa. The membrane is applied to the element, the irregular fibrous layer 2 being adjacent to it. A permeable membrane support may be on either surface of the element and in one embodiment is a filter placed on to the sheet prior to winding on the mandrel 10 so as to line the bore of the tube 12. In a modification the porous tube may be produced from a spirally wound, woven, fibrous tape and/or bundles of fibres applied by filamentary or wave form winding. Tubes having more than two layers, Fig. 1, 2, 3 (not shown) may be produced by cutting longer sheets and winding them as shown.
Patent GB-1296825-A (GB)
IPC: B24B3/04
Filed: 1968-10-23
Abstract: 1296825 Grinding M M WARD 23 Jan 1970 [23 Oct 1968] 2794/70 Divided out of 1296824 Heading B3D A machine for grinding e.g. helical grooves, in which a workpiece spindle 14 may be advanced relative to a grinding wheel 3 and simultaneously rotated under the control of a sine bar 16, includes a support 21 pivotably mounting the sine bar 16, which support is mounted for adjustment parallel to the spindle axis along a fixed machine base 1. The support 21 may be positioned by means of a drive screw 28, and the machine may incorporate the features disclosed in Specification 1,296,824.
Patent GB-1297651-A (GB)
IPC: B01D27/06
Filed: 1969-11-26
Abstract: 1297651 Pipe couplings PALL CORP 26 Nov 1969 [26 Nov 1968] 57768/69 Heading F2G [Also in Division B1] An inlet or outlet tube 35 is secured to a filter housing by having its end pushed over an externally tapered spigot 13 and clamped thereto by a winged bush 12, which as shown is screwed into an internally threaded sleeve 32 surrounding the spigot. Alternatively the bush could be attached to the sleeve by a bayonet or "tongue and groove" joint.
Patent GB-1303703-A (GB)
IPC: E04B2/86
Filed: 1970-02-24
Abstract: 1303703 Permanent wall shuttering PITRA 30 Oct 1970 [7 Jan 1970] 51696/70 Heading E1W A composite wall structure is made up from two wall sections dispose in spaced parallel relationship and interconnected by wall ties 12 the intervening space being filled with concrete. Each wall section comprises a number of panels e.g. 6 of, e.g. chipboard aligned edge to edge, with the panels of one section being sideways staggered relative to the panels of the opposed section. Each tie means comprises a pair of plates formed with sockets for receiving a linking member (Fig. 4). Two such wall structures may be superimposed, as shown, and support an intermediate floor 19. (For Figure see next column)
Patent GB-1304200-A (GB)
IPC: B66C15/00
Filed: 1970-05-13
Abstract: 1304200 Overload protection for cranes KRANBAU EBERSWALDE VEB 13 May 1970 23171/70 Heading G1N Safety apparatus for a crane includes a load cell and a synchro for measuring the jib angle, the signals being combined to operate a limit switch. As shown, Fig.1, the load is converted at 1 into proportional current signals I fed to a static load switch A and a dynamic load switch B, each comprising an autoself-excited bridge rectifying transductor. The load signal is partially smoothed by capacitor 7 and resistors 6 to form the control current I d  for transductor A which is also fed with a first current I B2  in winding 13 from a synchro type transducer 20 measuring the angle of the jib, after modification in a unit 40, and a second bias current I B3  from dynamic load switch B. This comprises a transductor fed with the load signal I in the control winding 25 and a constant bias current in winding 27 which is changed to the discharge current of a capacitor 33, when a 'lift' switch 35 or a 'tilt' switch 36 for the crane are operated. If the rate of increase of the load current I d  is substantially lower than the rate of decrease of the discharge current of capacitor 33, due e.g. to a slack-cable, switch B produces an output current I B3  forming the second bias current for switch A. Switch A energizes a relay 21 which is operated to cause the crane to be restored to a safe position and a braking system to be energized, when the smoothed load signal I d  exceeds a predetermined maximum value for a given jib angle, said maximum value being reduced in the abnormal conditions causing the additional bias current I B3  from switch B to be present. In a modification Fig. 5 (not shown), the transductor in switch B is replaced by a differentiating network.
Patent GB-1304361-A (GB)
IPC: A47C7/32
Filed: 1969-04-22
Abstract: 1304361 Cushion supports SLUMBERLAND GROUP Ltd 16 April 1970 [22 April 1969] 20399/69 Heading A4M A planar cushion support for a vehicle seat  comprises wires 15 passing through cords of twisted paper 16 so that the wires are moveable lengthwise relative to the cords, the adjacent ends 17 of pairs of wires being connected to helical springs 19 which are connected to the seat frame 11. The ends of the outermost wire may be connected to tension springs to which no other wire is connected
Patent GB-1316255-A (GB)
Title: Coin testing mechanism
Filed: 1969-12-23
Abstract: 1316255 Coin-testing ASSOCIATED AUTOMATION Ltd 23 Dec 1970 [23 Dec 1969] 62589/69 Heading G4V A coin-testing mechanism for discriminating between an equilateral curved polygonal coin of constant breadth, e.g. a 50p piece and a circular coin 11 of diameter equal to said constant breadth comprises aperture means having opposite portions at least one of which has a particular peripheral contour so that the polygonal coin is retained by virtue of an overlap by the coin of a said portion while the circular coin is able to pass through the aperture means. In the embodiment described a coin to be tested passes down longitudinally and laterally inclined entry shoot 1, formed of spaced rails 2, 3 which allow coins of insufficient diameter to fall between them, and is received by the arcuate surface 7 of a backwardly inclined pivoted cradle 6, the surface 7 being preferably part-circular of diameter equal to the constant breadth of a genuine coin (see Fig. 1, not shown). The weight of the coin pivots cradle 6 against the action of counterweight 18 and the coin is carried around the edge of an arcuate rail 4. A circular coin shown in broken outline is engaged closely by the cradle surface and is therefore not supported by the rail 4 at recess 14 and falls through the aperture. Since a polygonal coin only makes contact with the cradle surface at two points 21 and 22 it is supported throughout the movement of the cradle until it reaches the left-hand end of the rail where the coin falls into a receptacle. The cradle is returned to the normal position by the action of counterweight 18.
Patent GB-1323097-A (GB)
Title: Apparatus for scoring sheet material
IPC: C03B33/10
Filed: 1970-07-10
Abstract: 1323097 Scoring glass PILKINGTON BROS Ltd J McCUTCHEON GRAY J PIONKE and E JOHNSON 25 June 1971 [10 July 1970] 33645/70 Heading C1M A device for scoring a line on glass sheet or ribbon comprises a cutter assembly 1 and a double acting pneumatic cylinder and piston 4, 5 which urges the cutter assembly towards and away from the glass sheet S, there being a shaft 2 connected axially to the piston 5 and extending through an opening in the cylinder and carrying the cutter assembly; the piston 5 and cylinder 4 having a slightly slack fit to allow passage of air between them to provide a low friction air bearing. Glass sheet S is guided towards the cutter by the inverted ramp 30, gripped before and after scoring by wheels 19 and 20, scored by wheel 14 and moved by roller 27. Wheel 14 is mounted on shaft 2 which is joined to piston 5 which is moved up or down by air pressure through lines 6 and 7. The cutter and glass surface may be lubricated by aerosol spray from device 22 via nozzle 26. A bar 11 serves as a depth stop and to maintain alignment of the cutting assembly. More than one cutter assembly may be mounted on a support bar for scoring a multiplicity of lines and means may be provided for moving the cutter transversely, at an angle, across the moving sheet for scoring transverse lines. Where more than one cutter is utilized the distance between them may be variable.
Patent GB-1326921-A (GB)
Title: Axial piston hydraulic machines
IPC: F01B3/00
Filed: 1971-04-19
Abstract: 1326921 Reciprocating pumps and motors JOSEPH LUCAS (INDUSTRIES) Ltd 19 April 1971 [14 Jan 1970] 1736/70 Heading F1A [Also in Division F2] An axial piston pump or motor comprises a rotary cylinder block 17 coupled to a drive flange 11 by a constant-velocity universal joint 18, and pistons 15 with sockets 14 engaging ball heads 13 secured to flange 11, block 17 engaging a port block 20 having a part-cylindrical face 22 slidably mounted on a complementary face of a saddle 23 which is moved vertically by a pair of pistons 24 to tilt the cylinder block and port block assembly relative to flange 11 to adjust the piston stroke and change the direction of rotation or flow. Port block 20 is supported by arms 30 pivoted at 31 in the housing 10, the pivot axis lying in the plane containing the centres of balls 13. Inturned flanges at the port block ends of arms 30 engage arcuate grooves 34 in saddle 23 concentric with the part-cylindrical surface 22. Port block inlet and outlet openings 21 communicate with corresponding openings 26 in saddle 23 which communicate with respective inlet and outlet connections 29 via passages 25 in pistons 24 and sleeves 28, one piston passage opening downwardly, as shown, and the other upwardly, Fig.3 (not shown). Servo pressures are applied to pistons 24 via connections 27 to control the piston stroke and direction of rotation or flow, the pressure at connections 29 also acting on pistons 24 to return the assembly to its no-stroke position. Hydraulic transmission assemblies incorporating the pump or motor are described (see Division F2).
Patent GB-1329233-A (GB)
Title: Reagents
IPC: G01N31/16
Filed: 1969-07-14
Abstract: 1329233 Determination of water C S DELMONTE 13 Oct 1970 [14 July 1969 6 Dec 1969 20 Feb 1970 18 March 1970] 35246/69 59701/69 8347/70 and 13126/70 Heading B1X A modified Karl Fischer reagent for the estimation of water comprises an oxidising agent, preferably iodine; a solvent, preferably methanol; a sulphoxide or an organic nitrile as reducing agent; and an organic base incorporating the pyridine skeleton. Some of the iodine may be replaced by a compound of a polyvalent metal in which the metal is in a high valency state, e.g. ferric thiocyanate or cupric salicylate. Other solvents which may be used are ethanol, ethylene glycol, diethylene glycol or dioxane. Preferred reducing agents are dimethyl sulphoxide and butyl or amyl nitrites, and preferred organic bases are bipyridyls, polypyridyls or biquinolyls. The composition may also contain N-ethylpiperidine trin-butylamine or one of certain metal ions as a catalyst for the reaction with water; filmforming materials such as a silicone or a surfactant to inhibit hygroscopic absorption of water; and an indicator such as acridine or thymol blue.
Patent GB-1337084-A (GB)
Title: Method for the production of water soluble polymers
IPC: C08F2/04
Filed: 1972-04-27
Abstract: 1337084 Preparation of water-soluble polymers D'ARGENTEUIL S A R L 27 April 1972 [20 May 1971] 15923/71 Heading C3P Water-soluble high molecular weight synthetic polymers are prepared by subjecting one or more ethylenically unsaturated monomers, which form water-soluble polymers, in aqueous solution and in the presence of a polymerization regulator, to initiation of polymerization by a redox system at a temperature not exceeding 30‹ C., and allowing the polymerization to proceed adiabatically. Suitable monomers include (meth)acrylic acid and alkali metal and ammonium salts thereof, acrylamide, quaternized diethylaminoethyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, alkali metal and ammonium salts of vinylsulphonic acid, and mixtures thereof. Preferred redox systems are mixtures of ammonium or potassium persulphate with ferrous salts. Regulators mentioned are C 1 -C 5  alkanols, methane thiol and ethane thiol. Polymerization is preferably effected at a pH of 3-10.
Patent GB-1339892-A (GB)
Title: Apparatus for stopping the passage of wheeled vehicles
IPC: E01F13/06
Filed: 1969-12-22
Abstract: 1339892 Apparatus for controlling passage of vehicles D E T ARGENT and S M HAWES 18 Dec 1970 [22 Dec 1969] 62340/69 Heading E2M Control apparatus for the passage of wheeled vehicles comprises a barrier 30 pivoted on a horizontal axle 31 there being means for raising this barrier operated by a release lever 37, and means for lowering the barrier after the vehicle has passed, this means operated by a depressable ramp 40 in the carriageway. As shown, one embodiment has a counterweight 34 connected by a cable 33 to a pulley wheel 32, which wheel has a stop 29 which may be engaged by a member 35, moveable by movement of lever 37, and a stop 46 which engages with a rubber block 47 to limit the upward travel of the barrier. The counterweight 34 also has a cable 37 connecting it to a post 41 on the ramp 40, a bar 43 centrally pivoted on a post 45 preventing upward pivoting of the ramp 40 (about a hinged edge 42) due to the action of a spring 50 and the counterweight 34. On pulling the lever 37, which may require a coin to be inserted in a coin release mechanism in the post 38, the member 35 is withdrawn from its abutment with the stop 29 and the bar 43 from its abutment with the post 41, this allowing both the ramp 40 and the barrier 30 to rise, and the vehicle to pass. On depressing the ramp 40 the bar 43 urged by a spring 44 abuts the post and holds the ramp down, the counterweight is raised, the barrier lowered and the stop 29 of the pulley engages behind member 35. A second described embodiment, shown in Fig. 3, has a bar 14 as its barrier, pivoted about 2, the release lever 17 serving to lower, via a cable 16 which releases latch mechanisms 15, the barrier 14 and, via rods 5 (or optionally cables), raise the ramp 9. The latch mechanisms 15 are situated in guideways 11 for the barrier member.
Patent GB-1346986-A (GB)
Title: Electric cables
IPC: H01B9/00
Filed: 1971-04-19
Abstract: 1346986 Making composite wire BRITISH INSULATED CALLENDER'S CABLES Ltd 19 April 1971 [10 March 1970 16 March 1970] 11443/70 and 12509/70 Heading B3A [Also in Division H1] The method of making a copper clad aluminium rod claimed in Specification 1,186,419 is used to produce a copper or copper alloy clad aluminium alloy rod. The composite rod is drawn down to form a composite wire.
Patent GB-1351171-A (GB)
Title: Liquid fuel dispensing apparatus
IPC: B67D7/74
Filed: 1971-01-29
Abstract: 1351171 Dispensing liquids DRESSER EUROPE S A 31 Jan 1972 [29 Jan 1971] 3527/71 Heading A4T  A liquid fuel dispenser for mixtures of petrol from a low grade source 1 and a high grade source 2 has a price computer 16 which is driven by a price drive 12 from the high grade variator 10 and by the output of an adding differential 24 having two inputs, the first 11 being a price drive from the low grade variator 9, the second being via an increment gear box 25 driven by the low grade volume drive 13 from variator 9, and control means 20, 26 to render the gear box inoperative when a mixture is dispensed, but render it operative when the low grade fuel only is dispensed. The effect is to charge more per unit volume for low grade fuel only then the charge per unit volume of low grade fuel when incorporated in a mixture. The fuels are pumped by 3, 4 from tanks 1, 2 through meters 5 and 6 to mixing valve 7 and discharged at 8. Variators 9 and 10 produce volume 13, 14 and price 11, 12 drives, which are applied to volume 18 and price 16 computers. The gear box 25 may have a plurality of different ratios to provide for different surcharge, and the particular surcharge is indicated at 27. A suitable gear box is controlled by cams, Fig. 2 (not shown). Auxiliary gear box 28 may be provided for a once-for-all adjustment depending on the currency used. Blend control differential 22 is under the control of blend selector mechanism 21, and receives output from the volume differential 18 and produces an output to control valve 7.