baber/WOPTO huggingface dataset:
Patent GB-1238898-A (GB)
IPC: H03M1/00
Filed: 1968-11-13
Abstract: 1,238,898. Analogue / digital converters. TEXAS INSTRUMENTS Inc. 13 Nov., 1968 [29 Dec., 1967], No. 53867/68. Heading G4H. In an analogue/digital converter of the type in which a signal representing the analogue input is sequentially fed to a plurality of stages each stage sequentially generating a digital output bit, during each sampling interval each stage delivers an output bit which is stored, the stage then receiving the next sample so that with N stages the output of the jth stage is stored for (N - j) sampling intervals at the end of which time all the digital bits relating to a particular input signal are available for read-out. As described each of a series of connected stages 12, 16, 20 ... (Fig. 1) has an associated series of stores 14, 18, 22 ... along which the output bits are shifted at each sampling interval. Each stage delivers an output bit 1 or 0 in accordance with the polarity of the input V in  to the stage (Fig. 3) and an output V 0 =4V in 2V max /2 to the next stage. The stages each include two capacitors 52, 54 used alternately under the control of transistor switches S 3 , S 4  to store the input signal V in  and amplifiers K 2 , K 3  connected to sequentially operate switches S 5 , S 6  to feed a signal V 3 =4V in  to an amplifier K 4  to enable either switch S 7  or S 8  to determine the polarity of the digital output bit D 1  and the polarity of the reference signal  2V max . Instead of the series-connected stages a plurality of threshold circuits may receive the input signal sequentially.
Patent GB-1252180-A (GB)
IPC: C07F5/04
Filed: 1969-03-31
Abstract: 1,252,180. Perfumes. PROCTER & GAMBLE CO. 31 March, 1969 [29 March, 1968], No. 16729/69. Heading A5B. [Also in Divisions C2 and C5] A perfume composition comprises dihydro- #-Santalol of formula:  stated to be novel, together with other odoriferous substances. Two examples are given.
Patent GB-1257033-A (GB)
IPC: B22F7/00
Filed: 1968-07-10
Abstract: 1,257,033. Production of sintered metal strip. BRITISH IRON & STEEL RESEARCH ASSOCIATION. July 8, 1969 [July 10, 1968], No.32957/68. Heading C7D. Sintered metal strip e.g. mild steel or stainless steel is produced by depositing a slurry of metal powder on to a support e. g. endless metal belt or drum, which has been coated with a release agent, drying, removing the coating which is then rolled and sintered. The metal powder is suspended in an aqueous solution of a cellulose derivative e.g. methyl cellulose to give a viscosity less than 50, 000 cps. and a hygroscopic substance e.g. glycerol may be added. The release agent is a fatty acid such as oleic or stearic or a fluorinated hydrocarbon e.g. PTFE or silicones. The fatty acid may be dissolved in trichlorethylene or ethanol.
Patent GB-1259024-A (GB)
IPC: D01F9/16
Filed: 1969-03-27
Abstract: 1,259,024. Carbonized textile products. J. P. STEVENS & CO. Inc. 27 March, 1969 [31 May, 1968], No. 16040/69. Heading C1A. A carbonized textile product is prepared by heating a cellulosic textile substrate, such as a cellulosic or rayon yarn, at a temperature of from 200 to 300 C., while permitting said substrate to shrink freely, until a carbonized textile substrate having a carbon content of from 50 to 60% by weight is produced and heating said carbonized substrate at a temperature of from 1000 to 1500 C. in a non-oxidizing atmosphere while applying tension thereto until a carbonized product is obtained having a carbon content of from 85 to 100% by weight, said tension being sufficient to exceed the shrinkage forces in the carbonized substrate during heating but less than the tension required to break the substrate during heating. The carbonized substrate may be subjected to an intermediate step by heating at a temperature of from 500 to 1000 C. in a non-oxidizing atmosphere while applying tension thereto until a second carbonized substrate is obtained having a carbon content of from 70 to 85% by weight, the conditions of tension being the same as above.
Patent GB-1259155-A (GB)
IPC: C08J9/10
Filed: 1969-05-29
Abstract: 1,259,155. Expanding polybutene-1. CHEMISCHE WERKE HULS A.G. 29 May, 1969 [30 May, 1968], No. 27180/69. Headings C3C and C3P. Expanded polybutene-1 is made by heating under pressure a foamable mixture containing polybutene-1 and thereafter releasing the pressure on the mixture, the mixture containing in addition to the polybutene-1, 0À1 to 5% of an expanding agent which on heating splits off nitrogen, 0À03 to 2% of an organic peroxide having a decomposition temperature of at least 170‹ C., 0À01 to 1% of sulphur and 0À5 to 3% of a compound having a plurality of allyl groups, all the percentages being by weight based on the weight of the polybutene-1. The heating may be carried out in a mould or extruder. In the examples the foamable mixture consisted of polybutene-1, cyclic perketals of 2,5-dimethyl- 2,5-hexane dihydroperoxide and acetone, sulphur, triallyl cyanurate and azodicarbonamide.
Patent GB-1265630-A (GB)
IPC: H01H51/28
Filed: 1970-10-30
Abstract: 1,265,630. Electromagnetic relays. SIEMENS A.G. 30 Oct., 1970 [31 Oct., 1970], No. 51611/70. Heading H1N. The flux-carrying part, such as the core, of an electromagnetic relay is isolated from casting resin in which the relay is potted by sealing elements. As shown, the relay core 4 is located within the coil former 9 between two sealing rings 19, 20 preferably of silicone resin or silicone rubber. The ring 20 occupies a large hole 12 in a flux return member 11 and is magnetically bridged by a yoke plate 13 separated from the member 11 by an insulating foil 14. A protective cap 21 is placed over the core end and its retaining spring clip 15 and may be sprayed thereon. A covering screen 17 surrounds the casting resin 18 and a spring 22 presses the relay against the other end of the cover. A sealed contact chamber is formed by a carrier plate 2 and a cover 8 welded or soldered thereto. The contact armature 6 is mounted on a leaf spring 5 and co-operates with the core end which is the fixed contact and extends through a glass bead 3 in the plate 2.
Patent GB-1289806-A (GB)
IPC: B65D50/04
Filed: 1971-07-09
Abstract: 1289806 Protective caps I J MARKOWITZ 9 July 1971 [10 July 1970] 32446/71 Heading B8T In a protective cap 10 for an aerosol can 25 or a bottle (Fig. 4, not shown), comprising a skirt depending from a top portion 13 to engage a bead 32 of the can or the wall of the bottle, two or more arcuate lugs 18 project upwardly from the top portion 13 and are aligned with similarly shaped lugs 15 projecting inwardly and carrying lips 17 forming jaws which grip the enlarged collar 29 of the can or bottle but can be released by squeezing the lugs 18 together causing lugs 15 to move apart due to the smaller thickness and hence greater flexibility of top portion 13 relative to lugs-15 and 18.
Patent GB-1295520-A (GB)
IPC: B65G47/82
Filed: 1970-02-18
Abstract: 1295520 Feeding sheets WINDMOLLER & HOLSCHER 18 Feb 1970 [27 Feb 1969 23 Jan 1970] 7831/70 Heading B8R The depleted pile in the magazine 4 of a separator is replenished by a device comprising a roller conveyer 7 which receives piles of sheets from a further conveyer (not shown), a transfer rake having a series of rods 14 which is arranged to transfer a pile from the conveyer 7 to a position above the magazine and a stripper 37 arranged to cause the transferred pile to be dropped on the depleted pile as the rake returns to its initial position. The roller conveyer is arranged to be lowered such that a pile carried thereon is transferred to the rods 14 which are initially positioned between but below the level of the rollers of the conveyer. The rake is arranged to be moved in guide channels 2 to a position above the magazine 4 where the rear edge of a pile carried thereby is engaged by the dependent fingers 37 of the stripper, which hold back the pile as the rake returns to its initial position. Separators.-Sheets (e.g. tube sections intended for use in a bag-making machine) are separated from the bottom of the pile by rotating suction rollers 51, Fig. 4, carried in a rotating frame. The new pile is pressed into engagement with the depleted pile by rods 61. A photo-electric device 44 senses the level of the pile during separation and actuates the rake when depletion has reached a predetermined level.
Patent GB-1301251-A (GB)
IPC: H03K7/08
Filed: 1971-01-15
Abstract: 1301251 Analog/digital converters STANDARD TELEPHONES & CABLES Ltd 15 Jan 1971 2075/71 Heading G4H In an analogue to digital converter of the type in which the analogue input is converted to a pulse width modulated signal by comparing the input with a ramp signal derived by integrating a reference signal, the pulse width modulated signal controlling the application of pulses to a counter, the reference signal is derived either by averaging the input signal or by detecting peaks in the input. If the input is averaged the output of the comparator represents the ratio of the input signal to the average value of the input signal.
Patent GB-1305149-A (GB)
IPC: B65D88/64
Filed: 1971-05-26
Abstract: 1305149 Discharging hoppers LIFTAG HUB - FLEIT - UND VORSPANNTECHNIK AG 26 May 1971 17156/71 Heading B8S To facilitate discharge of material the base of a hopper 1, Fig. 1, is provided with a series of grooves 5 the width of which at their lower ends is substantially equal to the diameter of the outlet 4. Partitions 9 with knife edges 9a are arranged between the grooves 5a and a cover 6 is supported at the intersection of the partitions. Figs. 7-9, (not shown), illustrate grooves 5 having different cross-sections. Fig. 11 shows an embodiment in which a polygonal hopper is provided with a discharge funnel of circular cross-section. Fig. 14 (not shown) shows an embodiment with three grooves and three partitions. Fig. 16 shows an embodiment in which a central polygonal core has oblique plates 14 arranged on its sides 13 and a cover 15 on top.
Patent GB-1312731-A (GB)
Title: Fibre reinforced articles
IPC: A63B49/10
Filed: 1970-03-18
Abstract: 1312731 Racket handle NATIONAL RESEARCH DEVELOPMENT CORP 19 April 1971 [18 March 1970] 13162/70 Heading A6D An article e.g. a squash racket handle comprises an elongate core member 3 with fibrous reinforcement 5 confined to two substantially opposing longitudinal face regions of the core member, the composite material comprising fibres in continuous form arranged substantially parallel to the length of the core member and a cured plastics matrix bonding the fibres together. The fibres are preferably of carbon which may be associated with glass fibres and the latter may be braided around the former. The reinforcement may be applied in a dry or wet state or in sheet form and the faces of the core, which may be of wood, can be longitudinally grooved to receive the reinforcement (Fig. 6, not shown) or can be built up from separate pieces of wood 13, 14, 15-Fig. 7, to provide grooves for the reinforcement 11, the whole being assembled in clamps 12 until set. Alternatively the reinforcement can be applied by locating a length of composite material adjacent one end face of the elongate core member and then feeding, with that end leading, the core and composite material through a die to lay the composite material along opposing faces of the core member (Figs. 1 and 2, not shown). Figs. 8 to 13 (not shown) illustrate an application to a squash racket.
Patent GB-1314164-A (GB)
Title: Fluid pressure ration control system
IPC: F15B5/00
Filed: 1969-05-16
Abstract: 1314164 Fluid-pressure servomotor systems JOSEPH LUCAS (INDUSTRIES) Ltd 12 Aug 1970 [16 May 1969] 24990/69 Heading G3P The ratio of the pressures at an inlet 10 and an outlet 11 of a fluid-pressure system containing both confined jet and vortex amplifiers determines the pressure in a line 29 communicating with an actuator 30. A proportion of the inlet pressure is applied through a throttle 13 to a line 31 to oppose the effect of the pressure in the line 29 and through a balancing orifice 26 and confined jet amplifier 14 to the inputs 25, 27 of a vortex amplifier 24. The outlets 17, 34 of the amplifiers are connected to the outlet 11 of the system and the chamber 19 of an ejector 18 supplied with inlet pressure. If the inlet pressure rises or the outlet pressure falls, the increased flow through the ejector reduces the pressure at the outlet 17 and hence alters the ratio of the input pressures to the vortex amplifier and the output pressure in the line 29. The output from the amplifier 14 remains constant until the ratio of pressure in the line 12 to that at the outlet 17 exceeds 2À8 and the pressures in the lines 29,31 may be balanced below this ratio by a restrictor 32 and a venturi 33. The throttle 13 enables the system to operate with pressure ratios above 2À8. The vortex amplifier may be constructed as described in Specification 1224311.
Patent GB-1319233-A (GB)
Title: Pressing apparatus
IPC: D06F71/02
Filed: 1969-03-13
Abstract: 1319233 Laminating press R BATEMAN D WEISFELD AND J WEISFELD [Trading as B & W MARKETING & DISTRIBUTION CO] and G L DOCKETT 4 June 1970 [13 March 1969] 13221/69 Heading B5N [Also in Division D1] A pressing apparatus comprising a buck 2 supported by a frame, an upper pressing member mounted on two parallel arms 12 which are pivoted to the frame, a toggle linkage for urging each arm with its lowered or raised position and an operating handle 60 (see Division D1) may be used fusing an interlining to a material. The interlining is placed with a face coated with a resin based adhesive against a clothing material to be thickened and heated to 200‹ C. when in the pressing apparatus to soften and then heat set the adhesive.
Patent GB-1320313-A (GB)
Title: Power plant
IPC: F01K25/00
Filed: 1969-06-03
Abstract: 1320313 Power plant for use underwater BRITISH OXYGEN CO Ltd 3 Sept 1970 [3 June 1969] 31866/69 Heading F1Q The invention relates to a power plant for use underwater having a liquid hydrogen-containing tank, a liquid oxygen containing tank, a combustion chamber in which the hydrogen and oxygen are reacted, an engine driven by the reaction products, and a condenser for water vapour discharging from the engine, the combustion chamber having an inlet for water at a rate sufficient to maintain the chamber at a temperature below that at which the chamber would be damaged, the liquid hydrogen tank and the liquid oxygen tank being Dewar vessels. In Fig. 1, liquid hydrogen and liquid oxygen from the Dewar vessels 11, 12 pass to the reaction chamber 13, the resulting component, steam, passing to the turbine 14 and the steam discharging therefrom to condenser 15. A portion of the condensate passes to a vessel 16 and is subsequently disposed of; the remaining condensate passes through line 19 to the reaction chamber 13, the flow being controlled by a valve in dependence on temperature within the reaction chamber. Any excess hydrogen or oxygen in the condenser is passed through line 17 to the reaction chamber, a device 21 sensing which reactant is in excess and acting through servo-mechanism 23 to reduce the flow of that reactant. An adsorbent bed 25 is provided in the line 17 to remove any residual impurity gas. In Fig. 2, liquid hydrogen from tank 38 and liquid oxygen from tank 37 pass through lines 30, flow control unit 34 and vaporizer 35 to reaction chamber 43. The reaction product, steam, passes to Stirling engine 41 which drives electric generator 42. The exhaust steam from the engine discharges through line 49 through the vaporizer 35 where it serves to vaporise the reactants passing to the reaction chamber, the exhaust steam then passing into condenser 47. Condensate water is delivered by pump 52 through line 54 into the reaction chamber. Any excess water is discharged through one-way valve 53; any residual gas in the condenser 47 passes to adsorbent bed 46. The whole assembly except the Dewar vessels 37, 38 is contained within a pressure vessel 59 which is mounted on feet 58.
Patent GB-1320790-A (GB)
Title: Manufacture of rings for rolling bearings
IPC: B21K1/04
Filed: 1970-11-23
Abstract: 1320790 Making race rings TIMKEN CO 17 Nov 1971 [23 Nov 1970] 55670/70 Heading B3A In a method of making a bearing ring, e.g. a tapered roller cone, a ring 1 of rectangular section formed by hot rolling is subjected to cold forming by impact whereby to produce a ring form 2 of non-rectangular section having substantially the shape of the required bearing ring. The cold forming operation utilises an extrusion die 3 with a knock-out sleeve 4. The ring form 2 is afterwards machined on the surface providing the race, and on the narrower end to the required axial length. Prior to cold forming, the ring may be hot sized and the surfaces 5, 6 may be machined.
Patent GB-1322807-A (GB)
Title: Vibration damping of rigidly based structures
IPC: F16F7/10
Filed: 1970-11-30
Abstract: 1322807 Chimneys NATIONAL RESEARCH DEVELOPMENT CORP 29 Nov 1971 [30 Nov 1970 31 March 1971] 56710/70 and 8282/71 Heading F4J [Also in Division F2] To dampen vibrations of a structure fixed to a support secured to or provided by the ground or the seabed, e.g. transverse vibrations of a mast, smoke stack, tall building 10 or oil industry conductor-tube, it is provided with at least one tank 14 containing a mass of liquid 16 free to oscillate across the tank(s) with a natural frequency similar to that of (or of a principal mode of) the structure, the dimensions and shape of the tank(s) and the liquid depth are such that the liquid motion under resonance conditions will lag 90 degrees behind that of the structure and the forces exerted by the liquid will be in anti-phase to corresponding frequency components in the forces exciting the structure. The liquid 16 may be water for an air-conditioning system, a calcium chloride solution or oil. The natural frequency of the structure in the direction of liquid oscillation may be twice the tank dimension in that direction divided by #gh where h is the liquid depth. The tank or tanks may be at an antinode of the structure's  oscillation and symmetrical about a vertical axis of symmetry of the structure. The ratio of natural damping to that necessary to prevent oscillation, for the structure, may be less than 0À05. Two or more of the damping systems may be used and may be dissimilar. They may all be tuned to the natural frequency of the structure or one or more may be so tuned and the remainder to higher modes. Inclined baffles (18) of perforated plate or woven nylon or stainless steel are mounted in the tank 14 on the walls to overhang the liquid 16 for curbing splash and noise. The tank may be of circular section and mounted around a rigidlybased chimney stack to provide an annular liquid space possibly containing submerged weirs (40). There may be coaxial annular tanks (one tuned to a frequency mode other than the natural frequency) or a symmetrical arrangement of circular tanks around the stack.
Patent GB-1332153-A (GB)
Title: Safety device for gas-burning appliances
IPC: F23N5/10
Filed: 1970-10-29
Abstract: 1332153 Controlling gas burners A G SUTHERLAND Ltd 29 Oct 1970 [28 Jan 1970 17 Feb 1970] 4032/70 and 7447/70 Heading F4T [Also in Division H2] A safety device for a gas burning appliance comprises a magnetic flame-failure device having an electromagnet 1 powdered by the current from a thermocouple 2 which is heated by a main or pilot burner, the electromagnet maintaining a gas valve, (not shown) coupled to the armature 3, in an open position unless the main or pilot burner is extinguished, a switch controlled means being operative to apply an electrical signal to the electromagnet 1 so that the electromagnet can no longer retain the valve in its open position. In Fig. 1 the switch controlled means comprises the secondary 4 of a mains transformer 5, a rectifier diode 6, a current limiting resistor 7 and a thermally operated switch 8. The switch 8, which may be positioned in a part of the burner subject to overheating, closes above a specified temperature and a D.C. voltage of equal value but opposite polarity to that generated by the thermocouple is applied across the electromagnet causing the valve to close. In Fig. 5 a full wave rectifier 32 is connected across a secondary 24 of a mains transformer, closure of a thermally operated switch 28 resulting in current from the rectifier being fed via resistor 35 to the electromagnet, closing the valve. A cell 29 is connected across the rectifier and is continually charged so that if switch 28 closes during a mains failure, cell 29 supplies the current. Alternatively the full wave rectifier is omitted, the cell supplying the current at all times. In other embodiments the electrical signal is provided by the discharge of a capacitor or by an A.C. signal superimposed on the D.C. or the thermocouple. To permit the gas supply to be cut off in response to variables other than the absence of flame or over-heating a circuit comprising a transformer secondary 33, electrical switches 31 and a solenoid operated valve 30 in series with the main gas valve is provided, closure of both switches 31 serving to cut off the gas supply.
Patent GB-1332711-A (GB)
Title: Support clamps
IPC: B25B5/00
Filed: 1970-02-28
Abstract: 1332711 Support clamp T R COUGHTRIE 19 April 1971 [28 Feb 1970] 9794/70 Heading B4W A support clamp for a hand held tool comprises a U-shaped bracket 15 with an adjustable screw 18 in one limb, and an intermediate portion of the bracket on which are mounted arms 20 terminating in opposed flanges 21. also an adjustable member 22 is mounted on the intermediate portion for movement between two positions to cater for different sized tools. The Figure shows a tool mounted in a tapered socket of the support clamp in which it is retained by a wedging action. There is a recess 24 in the intermediate portion in which a projection 25 on the adjustable member is located. This defines one of the said positions. The other position is obtained by moving the adjustable member towards the flanges. A further projection 26 maintains the adjustable member level. Pin 23 and a spring keep the intermediate portion and the adjustable member in engagement.
Patent GB-1340451-A (GB)
Title: Endoprosthesis of shoulder joint
IPC: A61F2/40
Filed: 1972-07-20
Abstract: 1340451 Shoulder joints TSENTRALNY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO - ISSLEDOVATELSKY INSTITUT TRAVMATOLOGII I ORTOPEDII IMENI NN PRIOROVA MINISTERSTVA ZDRAVOOKHRANENIYA SSSR 20 July 1972 [12 Jan 1972] 1402/72 Heading A5R An implantable artificial shoulder joint comprises a ball-and-socket wherein the ball 6 carries a pin 1 for insertion into the medullary canal of the humerus and the socket 8 is formed in a shaped crown 7 for attachment to the articular process of the scapula. The pin 1 may have a slot 2 for bone tissue to grow into and a hole 3 to accommodate a securing screw. The crown 7 has its lateral walls 9 split into portions which are deformed during surgery to tightly embrace the articular process of the scapula. Each portion may carry a tongue (15), Fig. 3 (not shown) to assist in gripping the scapula, and the portions may be perforated by holes 10 into which bone tissue may intrude. Screw holes (14), Fig. 2 (not shown) receive screws to fix the crown to the scapula and a flute (12) in the top of the crown accommodates the tendon of the long head of the brachial biceps muscle. Holes 5, (13) may be provided on the joint so that muscles can be ligatured thereto.