baber/WOPTO huggingface dataset:
Patent GB-1055063-A (GB)
Title: A method of making a porous plastic material entrapping a plasticizer
IPC: B41N7/06
Filed: 1964-12-02
Abstract: A porous plastic material entrapping a plasticizer is made by mixing an aqueous latex of a thermoplastic polymer with a plasticizer, coagulating the latex, removing the water, and heating the product to fuse it into a porous mass having at least part of the plasticizer trapped in its pores.  Specified polymers are polyethylene, polyvinyl chloride, polyvinyl acetate, polyacrylates, polystyrene, polyvinylidene chloride and polyvinylidene fluoride as well as polyamides such as nylon, butyl rubber and copolymers of vinyl chloride and vinyl acetate, styrene with acrylates, butadiene or vinyl pyrrolidone, butadiene with vinyl toluene or acrylonitrile, and vinyl pyrrolidone with ethyl acrylate.  The plasticizers disclosed belong to the primary and secondary types, the former being defined as those which solvate the polymer and include phthalates, and adipates of alcohols and phenols, and phosphate esters as well as 2-pyrrolidone, acetyltributyl citrate, and polypropylene glycol. Secondary plasticizers may be aliphatic or aromatic hydrocarbons including mineral oils, castor oil, and oleic acid.  Mixtures of the two types may be used, e.g. dioctyl phthalate with castor oil.  Dyes, toners and pigments may be included in the mixture and the fusion may be carried out in a heated mould.  Specified methods for coagulating the latices of the invention include the addition of an electrolyte, solvent extraction and freezing.
Patent GB-438502-A (GB)
Title: Automatic apparatusf or applying bobbins on to spindles for looms
IPC: D03D45/20
Filed: 1934-02-14
Abstract: 438,502. Inserting spindles in bobbins. MARIO, G., 18, Via G. Bovio N., Novara, Italy. Feb. 14, 1934, No. 4893. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 18, 1934]. [Class 120 (iii)] Apparatus for fitting bobbins on to spindles comprises a disc E which rotates intermittently and has spindle receiving grooves 4-7 supplied with spindles from a feed hopper (not shown) at position 1 so that the spindles project from the disc ; a chain conveyer L for bobbins, which advances intermittently ; and a fitting device T which reciprocates intermittently and simultaneously applies a bobbin to a spindle at position 2 and presses home the next bobbin which has previously been placed on its spindle. The chain conveyer L is moved forward intermittently by a ratchet-and-pawl mechanism actuated by the passage of a spindle in the disc E when the latter rotates. The device T consists of two parts, the first part comprises two jaws R which grip a bobbin and thread it on to a spindle at position 2 ; the second part pushes home a bobbin previously applied to a spindle, and comprises a piston Z, Fig. 7, actuated by a connecting-rod 10 and containing a spring-loaded plug V which engages the bobbin end; the piston Z reciprocates in a mounting T slidably carried by two bars U, the whole mounting T, which carries the jaws R, being caused to reciprocate by the shoulders 12 engaging the ends of a slot 11 in the piston. The jaws R are opened and closed by a cam or like mechanism (not shown), actuated by the reciprocation of the mounting T. The spindles are retained in the recesses in the disc E by spring-pressed plates, until they reach position 4, where they are released.
Patent GB-1407840-A (GB)
Title: Indicator equipment for detecting temperature differences
IPC: H04N3/09
Filed: 1972-10-25
Abstract: 1407840 Detecting objects by heat LICENTIA PATENT-VERWALTUNGS GmbH 25 Oct 1972 [25 Oct 1971 17 March 1972] 49132/72 Heading G1A [Also in Division G4] The presence of an object which is warmer than its surroundings is detected photo-electrically. In Fig. 1, a mirror 4 mounted on leaf-spring 9 is alternated repetitively between two positions by electromagnet 6, so that radiation from two square or rectangular areas 1, 2, is directed alternately to detector 5. The amplitude of the resultant alternating signal is representative of the difference in the intensities from the areas. The signal may be displayed on an oscilloscope. In a more sophisticated arrangement, purely schematically illustrated by Fig. 2, an array of five detectors 16 is provided so that lines, each of five rectangular areas 12a, 12b, are viewed alternately. Each detector feeds an amplifier 19, a phase-controlled rectifier 20, a low-pass filter 21 and a D.C. amplifier, after which the circuit splits to provide positive and negative threshold devices 23, 24 which are effective to determine which, if either, of a pair of viewed areas, contains a hot body; to cause respective indicator lamp 28a, 28b to be lit. The indicator lamps may be annular or rectangular frames arranged in a line of pairs in a viewing eyepiece, so that an operator is immediately made aware of the presence of a hot body. Gunsights may also be included in the eyepiece, Fig. 3 (not shown). A horizontal line of indicator lamps may be provided when a suitable corresponding detector structure is provided. Instead of indicators in an eyepiece, they may be at a central monitoring post and acoustic and/ or optical alarms be provided. In an alternative arrangement Fig. 4, the scanning arrangement is such that for each detector pair, there correspond three viewed areas, the central area always being viewed by one or other of the detectors alternately.
Patent GB-1438589-A (GB)
Title: Stich marker and holder
IPC: A43D8/26
Filed: 1973-10-22
Abstract: 1438589 Stitch markers STANLEY PRESS KNIVES LTD 17 Sept 1974 [22 Oct 1973] 49156/73 Heading D1G A stitch marker (Fig. 1) for applying inked stitch mark lines to leather comprises a rigid plastics plate 1 from one face of which protrude marking means, e.g. brass strips 2, the other face of the plate 1 having at least one recess or hole 3 for receiving a projection 11 on a stitch marker holding plate 6 (Figs. 3, 5) to locate the stitch marker laterally beneath the holding plate 6. The stitch marker also has at least two oppositely inclined guide surfaces extending from the leading edge 5 of the plastics plate 1, e.g. in the form of a V-shaped recess 4, the guide surfaces cooperating with a guide member 9 provided at the rear of the holding plate 6 to guide the stitch marker laterally such that the recess(es) 3 are brought into engagement with the projection(s) 11. The holding plate 6 also has a lip portion 10 which extends beneath the leading edge 5 of the plastics plate I whilst a nose portion 13 of a latch member 12 engages beneath the trailing edge of the plate 1. The holding plate 6 is secured in a marker machine in conventional manner using locating pins 7 and a connecting piece 8. The nose 13, the trailing and leading edges of the plastics plate 1, and the lip 10 may be tapered to wedge the stitch marker firmly against the holding plate 6. Recesses 15 may be provided in the holding plate 6 to aid removal of the stitch marker.
Patent GB-1352798-A (GB)
Title: Diversity receivers and frequency-locking circuits
IPC: H04B7/08
Filed: 1972-10-25
Abstract: 1352798 Diversity reception; phase-locked oscillator WESTERN ELECTRIC CO Inc 25 Oct 1972 [28 Oct 1971] 49172/72 Headings H3A and H4L In an arrangement in which the frequency of  an oscillator is locked to that of an incoming signal by means of a frequency-locking loop, a local oscillator is also provided whereby the looked oscillator can be temporarily locked to the desired frequency. The described embodiment comprises a diversity receiver modified to use integrated circuits; a number of branches 1-N are provided, each comprising an aerial 20, and first mixer 1I, there being a local oscillator 21 common to all branches. Each mixer 11 is followed by a corresponding IF amplifier 12 feeding a power splitter 13, the main output of which is fed to a second mixer 18: the outputs of the second mixers 18 are combined in combining circuit 23 and applied over filter 24 to a single receiver. The second output from power splitter 13 is fed to an auxiliary mixer 14, the second input of which is derived from the output of filter 24; the output from mixer 14 is fed via a narrow band filter 19 comprising a phase-locked loop, to the second input of mixer 18. The arrangement is such that phase differences in the signals arriving at the various aerials 20 are eliminated from the signals applied to the combiner 23. Phase locked loop.-The narrow band filter 19 comprises a voltage controlled oscillator 17, the output from which is fed to mixer 18 and also to a mixer 15, the second input to which comprises the locking frequency. The output from mixer 15 comprises a control signal which is filtered by low-pass filter 16 and applied as a frequency control voltage to oscillator 17. A further acquisition oscillator 22 operating at the desired I.F. frequency is provided, and when switches 26 are closed its output is injected into the I.F. channels of each branch, thereby locking oscillators 17 on to the desired frequency, and insuring that they will lock on to the incoming signals after switches 26 are opened. In a first modification, the acquisition oscillator (22, Fig. 2, not shown) is coupled by means of a single switch, in parallel with the local oscillator (21), In a second modification, the acquisition oscillator (22, Fig. 3, not shown) can be connected to the second input of the auxiliary mixer (14) in place of the output from the filter (24). The specification also describes the application of the arrangement using an acquisition oscillator to a pilot type diversity receiver in which the mixer 14 of Fig. 1 is omitted, the second output from power splitter 13 feeding directly into the narrow band filter (19, Fig. 4, not shown).
Patent GB-1269148-A (GB)
Title: Apparatus for dehydrating crops
IPC: F26B19/00
Filed: 1969-10-07
Abstract: 1,269,148. Mowers. H. VISSERS N.V. 7 Oct., 1969 [8 Oct., 1968], No. 49257/69. Heading A1F. [Also in Division F4] A mowing machine 24, which also dries the cuttings, see Division F4, has heating elements 26 fitted with burner jets 27, so that, after the crop has been cut by cutters 32, mounted on mowing discs 31, it is fed by rotor 40, and driver elements 42 via flow duct 43, to be dried in duct 25. The heat is adjusted so that no part of the crop is burnt, but the cells are burst open. An air blower (28) Fig. 7 (not shown) may be fitted if the burners use domestic fuel oil. Apparatus of similar construction, but designed for treating pre-mown grass is disclosed, Fig. 6 (not shown).
Patent GB-1369869-A (GB)
Title: Process for the manufacture of monofluorodichloromethane and  diffluoromonochloromethane
IPC: C07C17/37
Filed: 1971-10-25
Abstract: 1369869 CHCl 2 F and CHCIF 2  FARBWERKE HOECHST AG 25 Oct 1971 [27 Oct 1970] 49385/71 Heading C2C Monofluorodichloromethane and difluoromonochloromethane are obtained by reacting hydrogen fluoride and chloroform, in gaseous form, in the presence of a solid fluorination catalyst and at 100‹ to 200‹ C., not more than 60% (e.g. 20-40%) of the HF initially present being reacted, and subsequently separating the organic products from the HCl formed and from unreacted HF. The fluorination may be effected at an absolute pressure of 1 to 15 atm. and with a molar ratio of CHCl 3  to HF of 1 : 1 to 1 : 8. The catalyst is preferably a chromium oxifluoride obtained by fluorinating an hydrated oxide of Cr(III) (e.g. Cr 2 O 3 .2H 2 O) with HF at 150-600‹ C. and is optionally mixed with a binder, e.g. graphite, before use. The reaction mixture is generally separated by fractional condensation to remove HCl and any CHF 3  formed, the remaining condensate separating into an upper phase comprising HF (which may be recycled) and a lower phase comprising CHCl 3 , CHCl 2 F and CHClF 2 . Examples 1 to 10 describe the reaction of HF and CHCl 3  to produce CHCl 2 F and CHCIF 2  with some CHF 3  as by-product. Comparative Examples 1a and 2a which convert 70% and 97À9% respectively of the HF initially present produce CHF 3  as the major organic product.
Patent GB-1455409-A (GB)
Title: Lintel and canopy assemblies
IPC: E04B7/00
Filed: 1972-10-27
Abstract: 1455409 Lintel and canopy assembly BIRTLEY MFG Ltd 29 Oct 1973 [27 Oct 1972] 49610/72 Headings E1B E1K and E1W A canopy and lintel assembly comprises a canopy 2 secured to the front face 15 of a lintel below the lip 18 of the lintel damp proof tray 6. The lintel is identical to that disclosed in Specification 1454367. The canopy has a roof 19, an upstanding flange 21 along one edge which locates below a lip 18 on the lintel, and depending flanges 20 along the other edges. In another embodiment all the edges have depending flanges, Figs. 3 and 4 (not shown), and a panel, which may be translucent or transparent, is secured to the depending flanges with an electric light between the panel and the roof. The canopy may be moulded from galvanised sheet steel or from glass fibre reinforced plastics with metal reinforcing inserts 23 and gussets 24.
Patent GB-1056318-A (GB)
Title: Device for growing indoor plants
IPC: A01G9/02
Filed: 1964-12-07
Abstract: 1,056,318. Plant containers. J. G. BERG. Dec. 7, 1964, No. 49771/64. Heading A1E. A device for growing plants comprises at least two containers formed integrally with each other from a single blank, one of the containers being for water. As shown the containers are circular, the outer container 4 being for soil and the inner container 5 for water which may be fed to the soil by means of wicks located in grooves 9 in the upper edge of the partition 8 between the containers. A projection 6 acts as a support for a lamp or for a fountain nozzle or heating means. A light bulb may also be located near the water surface to promote evaporation. The device is supported on a base plate 2 to which are attached legs 3 and taps 10, 11 are provided for draining the containers.
Patent GB-1474539-A (GB)
Title: Preparation of phenylene sulphide polymers
IPC: C08G75/06
Filed: 1974-11-18
Abstract: 1474539 Phenylene sulphide polymers PHILLIPS PETROLEUM CO 18 Nov 1974 [19 Nov 1973] 49822/74 Heading C3R Phenylene sulphide polymers are obtained by reacting a sulphur-yielding source, e.g. an alkali metal sulphide, with a mixture of 35 to 90 mole per cent of a m-dihalobenzene and 65 to 10 mole per cent of a p-dihalobenzene, the reaction being performed in the liquid phase in the presence of an organic amide which is liquid under the reaction conditions. In examples, polymers are obtained from mixtures of m-dichlorobenzene and p-dichlorobenzene by heating with sodium sulphide in N-methyl-2-pyrrolidone. The polymers are soluble in organic solvents and the solutions may be applied to substrates to form coatings which may be cured by heating.
Patent GB-1444573-A (GB)
Title: Expansive cement
IPC: C04B7/00
Filed: 1973-10-26
Abstract: 1444573 Expansive cement GENERAL PORTLAND Inc 26 Oct 1973 [27 Oct 1972 10 Oct 1972] 49934/73 Heading C1H An expansive cement composition in made from argillaceous and alkaline earth metal containing materials and contains 1 to 70 wt. per cent of free alkaline earth metal oxide, the remaining portion being substantially the alkaline earth metal silicate which results from the complete stoichiometric reaction product between the alkaline earth metal oxide and silica, the remaining portion containing the maximum ratio of alkaline earth metal oxide to silica and containing substantially no alkaline earth metal silicates having a lesser ratio of alkaline earth metal oxzde to silica than the maximum. The alkaline earth metal oxide may be CaO, BaO, SrO or a mixture thereof. An hydraulic cement, e.g. Portland or pozzolanic cement, may also be included Preferably the composition comprises 1 to 70 wt. per cent CaO, the remainder being tricalcium silicate (C 3 S).
Patent GB-1303209-A (GB)
IPC: A23L9/10
Filed: 1971-10-27
Abstract: 1303209 Gelatin dessert GENERAL FOODS CORP 27 Oct 1971 [23 Nov 1970] 50021/71 Addition to 1246029 Heading A2B A dry composition for preparing a gelatin dessert comprises at least a mixture of gelatin, fat, and fat emulsifier, in such a ratio that on mixing with an aqueous liquid, whipping, and permitting to set, there is formed a dessert of at least two layers of differing texture, the composition containing at least trace amounts of a fat soluble colouring agent and a water soluble colouring agent, to provide differently coloured layers in the final dessert.
Patent GB-1483868-A (GB)
Title: Storage cell made of insulated gate field effect transistors
IPC: G11C11/412
Filed: 1975-12-09
Abstract: 1483868 FET digit stores ITT INDUSTRIES Inc 9 Dec 1975 [13 Dec 1974] 50392/75 Heading H3T In a cross-coupled FET digit store, the bit lines I1 and 12 are precharged before each read or write operation by pulsing on transistors 9, 10, and during the read operation, the coupling transistors 7, 8 are cut off so that even though there is a substantial loss of charge from the high node B or C, the state of the cell is preserved by the charge on the gate of the corresponding transistor 2 or 1. The FETs may be P-channel or N- channel enhancement or depletion mode, but are all of the same type and mode.
Patent GB-1334077-A (GB)
Title: Phosphonothioic acid derivatives
IPC: C07F9/42
Filed: 1970-10-23
Abstract: 1334077 Plant growth regulation GAF CORP 23 Oct 1970 [27 Oct 1969] 50550/70 Heading C1B [Also in Division C2] A composition for regulating the growth of plants comprises a compound of the general formula wherein X is O or S and R<SP>11</SP> is H, R is C 1 -C 5  alkyl, C 6 -C 12  aryl or C 7 -C 15 -alkaryl or -aralkyl in association with an aqueous or solid carrier. The aqueous carrier may be wholly water or a mixture of water and a water-soluble solvent, e.g. methyl ethyl ketone.
Patent GB-1516788-A (GB)
Title: Light transmitting device
IPC: G02B6/04
Filed: 1976-12-03
Abstract: 1516788 Optical fibre device FUJI PHOTO OPTICAL CO Ltd 3 Dec 1976 [5 Dec 1975] 50615/76 Heading G2J A light transmitting device, e.g. an endoscope, comprises a first bundle of optical fibres arranged in a close pack hexagonal structure wherein an image focused on the exit end-face of said bundle is focused on an entrance end-face of a second fibre bundle composed of same size fibres hexagonally close packed arranged so that the directions along which the fibres lie in straight lines are at right angles to the corresponding directions in the first fibre bundle. A semi-transparent mirror may be used to partially transmit the image formed at the first fibre bundle direct to an eye-piece and partially reflect the same image to the second fibre bundle see Fig. 1 (not shown).
Patent GB-1516797-A (GB)
Title: Auxiliary cooling device for the primary fluid heat exchanger of a nuclear reactor
IPC: F28D7/00
Filed: 1976-12-06
Abstract: 1516797 Steam generation using liquid alkali metal STEIN INDUSTRIE SA 6 Dec 1976 [18 Dec 1975] 50815/76 Heading F4A A steam generator employing liquid alkali metal, e.g. sodium, from a fast nuclear reactor comprises a bank of steam generating tubes extending between tube plates 4, 5 and within a casing 2 through which the liquid sodium flows between inlet 10 and outlet 12; auxiliary cooling of the sodium being effected by means of cooling fluid fed into a jacket 13 arranged about the easing 2 into which heat exchange surfaces 18 project from the casing. As shown air is fed by blower 17 into the jacket and is heated, by the sodium before passing to outlet 16.
Patent GB-1433549-A (GB)
Title: Safety harness
IPC: B60R22/24
Filed: 1973-11-01
Abstract: 1433549 Safety harness FIRESTONE TIRE & RUBBER CO 1 Nov 1973 [1 Nov 1972] 50819/73 Heading A3V A safety harness comprises a single length of webbing arranged in use to provide two shoulder restraining loops and a lap portion. One end of the belt is fixed to a retractor 19 under a seat. The belt passes through a guide 21, and over a bar 23 above and behind the occupants head to provide shoulder loops 12, 13. A sliding tongue 18 can be clipped into a receptacle 17 to provide a lap portion 14. The receptacle includes a switch in the ignition or a warning circuit. The   tongue can be stowed on a hook in the centre of the vehicle when not in use.
Patent GB-1017787-A (GB)
Title: Sport shoe, particularly track shoe
IPC: A43B5/06
Filed: 1964-12-14
Abstract: 1,017,787. Boots &c. E. BRUTTING. Dec. 14, 1964 [Dec. 20, 1963], No. 50849/64. Heading A3B. A spike 5, stud or the like is secured to the sole of a sports shoe e.g. a track shoe by being inserted into a recess 10 in the sole where it engages an anchoring plate 3 which extends through the recess 10 and is locked to the anchoring plate 3 by relative movement between the spike 5 and the anchor plate 3 in a direction parallel to the tread surface. In a first embodiment (Figs. 1, 2) the anchor plate 3 is slidable in a slot 2 in the sole 1 and is provided with keyhole apertures 4. To secure the spike 5 the circular part of the keyhole 4 is aligned with the recess 10 and the spike 5 is inserted. The anchor plate 3 is then moved in the slot 2 so that the narrow part of the keyhole 4 engages an annular groove 7 in the spike 5. The anchor plate 3 is held in this position by resilient projections 8 on the sole 1. In a second embodiment (Fig. 6) the anchor plate 3 is embedded in the sole and the recess 10 is large enough to permit the spike 5 to be inserted into the circular part of the keyhole 4 and moved to the narrow part of the keyhole where the groove 7 is engaged by the anchor plate. A grub screw 11 is then inserted in the circular part of the keyhole to prevent further movement of the spike 5. In both embodiments the sole may be reinforced by a plate 6 which is embedded in the sole above the spike 5.
Patent GB-1478165-A (GB)
Title: Method and apparatus for connecting an offshore wellhead to a gathering platform
IPC: H02G1/10
Filed: 1974-11-25
Abstract: 1478165 Wells &c DOLPHIN INTERNATIONAL Inc 25 Nov 1974 [21 June 1974] 50956/74 Heading E1F [Also in Division F2]   A method of connecting an offshore production well 17 to a gathering platform comprises extending a continuous string of production pipeline 20 from a drilling structure to the gathering platform, connecting one end of the string to a well head 33 on the drilling structure, and lowering the well head and attached string from the drilling structure to the ocean floor well site while taking out the slack in the string at the gathering platform. The string is made up and wound onto a reel (19), Fig. 1A (not shown), on the drilling vessel, and then unwound and towed along the ocean floor by means of a cable (28), Fig. 1B (not shown), to the gathering platform these steps taking place simultaneously with the drilling operation of the well. The reel (19) is provided with a pipeline feeding device (Fig. 5 not shown) mounted on a support (51) Fig. 4 (not shown), which is pivotable between a horizontal position for reeling in and a vertical position for paying out the pipeline string. The pipeline string is hauled on the gathering platform by means of relatively movable frames (65, 70) having slip cone openings (68, 69, 74) and slip assemblies, the relative movement being effected by means of hydraulic jacks (71). A method of hydrostatically testing the pipeline when on the reel (19) is disclosed.