baber/WOPTO huggingface dataset:
Patent GB-1228718-A (GB)
IPC: B65B7/28
Filed: 1969-03-04
Abstract: 1,228,718. Containers. TETRA PAK A.B. 4 March, 1969 [10 April, 1968], No. 11518/69 Headings B8C and B8D. A disposable, cup type, container comprises a rigid hollow body 1 with a gas and liquid impervious plastics lining 2 and a cover 6, 7 which closes the container mouth and has an inner surface 7 of heat sealable material, e.g. plastics, which is bonded to the lining 2 by a narrow joint which is sufficiently fragile to allow the bonded layer to be torn off without danger of rupturing the lining. The body 1, which is preferably made of foamed plastics, projects above the lining 2 with an upper edge zone 3. When the coder 6, 7 is heated and pressed by a die 5 on to the upper rim of the body 1, while the latter is located in a holder 4, the edge zone 3 shrinks away and loses most of its cellular structure until the cover 7 meets the lining 2 and forms a continuous narrow, and weak, joint 8. The lining 2, made e.g. of P.V.C., can be glued, or heat sealed, to the body 1, and may be tinted to protect the packaged product from light. The cover is preferably strengthened by a mechanically stiff layer 6.
Patent GB-1232385-A (GB)
IPC: H03K5/15
Filed: 1967-06-02
Abstract: 1,232,385. Transistor circuits. GENERAL ELECTRIC, and ENGLISH ELECTRIC COMPANIES Ltd. 16 Aug., 1968 [2 June, 1967], No. 25510/67. Heading H3T. [Also in Division G4] A two-state circuit comprising a pair of cross-connected transistors is coupled to a capacitive load via a transmission line having a transit time not less than half the switching time of the circuit. As shown, a bi-stable circuit comprises two cross-connected transistors T4, T5 having their collectors coupled via coaxial or printed circuit strip lines E, F to the steering inputs A and C of the next succeeding bi-stable circuit in a shift register. The collector load resistors (not shown) are at the remote ends of transmission lines E, F. The circuit is switched by data on transmission lines A, C from the preceding stage fed to emitter-coupled transistors T2, T3 under control of a sine wave clock signal fed to the base of transistor T1. The transmission lines E, F present a resistive load to the collectors while the bi-stable circuit is switching and do not effectively connect the capacitive load formed by the next bi-stable circuit for a period equal to twice the transit time of the line. Diodes 30, 31 connected between the bases of T4 and T5 prevent delayed switching times due to accumulation of stored carriers following a succession of applications of a switching signal when no change of state occurs. The invention is also applicable to mono-stable circuits. Shift registers.-Fig. 1 (not shown) depicts a chain of bi-stable circuits of the type shown in Fig. 2 having feedback via a NAND gate and used as a timing pulse generator for a pulse code modulation television system utilizing a nine-bit code.
Patent GB-1232774-A (GB)
IPC: G03C8/06
Filed: 1969-01-22
Abstract: 1,232,774. Photographic silver salt diffusion transfer process; processing compositions. POLAROID CORP. Jan.22, 1969, [Jan.22, 1968], No.3617/69. Heading G2C. A photographic processing composition comprise a liquid vehicle having dissolved therein a silver halide developing agent and, as a silver halide solvent, at least one organic derivative of a trihydride of trivalent phosphones, arsenic or antimony, said devivative being capable of reacting with silver halide to form a complex silver salt that is soluble in said vehicle. The derivative preferably has the general formula Y m -X-R (3-m ) wherein Y represents a group of the formula - Z-XR 2  in which Z is a divalent organic radical; each radical X is trivalent P, As or Sb; each radical R is H or a monovalent organic radical; m is 0 or 1, and not more than two of the radicals R are H when M is 0. In the examples tris- (paratrydroxy-phenyl) phosphine is used. The liquid vehicle is usually water but it may be an organic liquid, preferably a volatile organic liquid, or a mixture of water and an organic liquid. The acidity and alkalinity of this processing composition may range from a hydrogen ion concentration of IN to a hydroxyl ion concentration of SN. The present processing composition give good transfer image in the silver salt diffusion transfer process. The derivatives of P, As or Sb used in this composition are oxidized in air to give pale or colourless residue which is not deleterious to the transfer image and are effective silver halide complexing agents under less alkaline conditions than normally employed.
Patent GB-1233183-A (GB)
IPC: H02J7/02
Filed: 1967-10-20
Abstract: 1,233,183. Battery charging systems. JOSEPH LUCAS (INDUSTRIES) Ltd. 15 Oct., 1968 [20 Oct., 1967], No. 47765/67. Heading H2H. [Also in Division G3] In a battery charging system, a switching device supplies a pair of supply lines across which in use the battery is connected and means are provided for preventing conduction of the switching device in the event that the voltage between the supply lines is below a minimum level, whereby the risk of damage to the components of the system, should certain fault conditions arise, is minimized. As shown, a battery 35 is connected to be charged from an A.C. source by way of a transformer 11, a thyristor 19 and supply lines 17, 18. Under normal charging conditions the thyristor 19 receives gate current from a further supply line 16 by way of resistors 24, 26 and is thus turned on during each positive half cycle of the A.C. supply; when the battery voltage reaches a predetermined level, set by the adjustment of a variable resistor 34 associated with a Zener diode 32 and further resistors 31, 33, a transistor 29 is rendered conductive to remove the gate current from the thyristor 19 which is thus turned off. In this way, the battery 35 is charged at a regulated voltage to a level determined by the resistor 34. The line 16 also supplies a further transistor 23 connected into the circuit as illustrated, and this transistor is normally non-conductive; if battery 35 is not present, however, transistor 23 is turned on by current flow through resistor 21 and the thyristor 19 is not fired. Similarly if there is a short circuit between lines 17 and 18 current flow through resistor 21 turns transistor 23 on and the thyristor 19 is not fired. The transistor 23 is also turned on, through current supplied by resistors 21 and 22, if the battery is connected the wrong way round. Modifications of the system, in which the thyristor does not also act as a rectifier, are described with reference to Figs. 2 and 3 (not shown).
Patent GB-1250228-A (GB)
IPC: A47C7/22
Filed: 1969-05-01
Abstract: 1,250,228. Laminate. VITAFOAM Ltd. 15 April, 1970 [1 May, 1969], No. 22157/69. Heading B5N. [Also in Division A4] A webbing or platform adapted to be used for carrying upholstery cushions, pads or mattresses comprises at least one layer of elastomeric material compounded to produce an unstained and non-staining surface located at an external face of the webbing or platform and at least one layer compounded from materials including an ozone-resistant material or anti-ozonant located at an opposite external face of the webbing or platform, the said units being formed into a single unit during a moulding operation.
Patent GB-1251080-A (GB)
IPC: F42B3/18
Filed: 1968-12-31
Abstract: 1,251,080. Detonators. DYNAMIT NOBEL A.G. 31 Dec., 1968 [2 Jan., 1968], No. 61934/68. Heading F3A. A detonator protected against electrostatic discharges, comprises an electrically ignitable primer 2, electrically conductive supply wires 4 and 5, and a sleeve-like metal shield 6 electrically insulated from an outer casing 1, the supply wire 4 being electrically connected to the metal shield. The shield is insulated from the outer casing by a perforated plastics sleeve 7. Electrically insulating lacquer may be provided on the inside surface of the metal shield at least in the region of the supply wire 5, or a plastics sleeve 12 may be provided.
Patent GB-1251537-A (GB)
IPC: B32B27/00
Filed: 1969-07-14
Abstract: 1,251,537. Cellular coatings. CONGOLEUM INDUSTRIES Inc. 14 July, 1969 [25 July, 1968], No. 35433/69. Heading B2E. A resinous cellular layer having a non- cellular surface stratum is obtained by incorporating a thermally decomposable blowing agent and an accelerator therefor into a foamable resinous composition, the accelerator being insoluble in the composition, forming the composition into a layer, applying to the surface of the layer a uniform layer of a composition containing an inhibitor for the accelerator capable of penetrating to a depth of at least 0.03 inch and heating the layer so that the blowing agent in the area of said penetration is not decomposed, the amount of inhibitor being insufficient to penetrate the whole of the layer and thereby react with all of the accelerator in the resinous composition. A backing may be present such as a felted sheet, a woven or knitted fabric or a sheet of a thermoplastic or elastomeric resin, such as butadiene-styrene copolymer, polychloropene, polyvinyl chloride, polyvinyl acetate, vinyl chloride-vinyl acetate copolymers. The fabrics may be of cotton, wool, asbestos or synthetic fibre. The fabric may be sized to prevent the coating composition from penetrating the openings between the fibres. Felted cellulose or mineral fibrous sheets are preferred, such as felts of asbestos, cotton or other rags, wood pulp or paper boxes. The felt may be impregnated with a vinyl resin such as vinyl chloride and vinyl acetate polymers. Suitable polymers are specified. Alternatively, the backing may be a release paper. The foamable composition may be applied as a dispersion in a liquid medium or as a plastisol. Numerous suitable polymers of the foamable composition are specified such as vinyl chloride homopolymers and co-polymers with numerous exemplified co-monomers. Suitable plasticizers and stabilizers are listed as well as numerous suitable blowing agents. Metal compounds are specified as suitable accelerators. The inhibitors may be organic acids, organic acid halides and compounds which yield acid radicals under the reaction conditions. Suitable compounds are listed. An additional leyer of inhibitor may be applied to selected areas so as to selectively inhibit foaming and form an embossed surface.
Patent GB-1256912-A (GB)
IPC: F42B3/10
Filed: 1969-01-30
Abstract: 1,256,912. Explosive forming. DEFENCE SECRETARY OF STATE FOR. 28 Jan., 1970 [30 Jan., 1969; 18 June, 1969], No. 5183/69. Heading B3Q. [Also in Division F3] A method of deforming a tin plate base of a water tank to correspond with embossings on supporting metal blocks comprises dipping an open end of a detonating device beneath the surface of water in the tank and detonating the device. The detonating device comprises a tube, closed at one end, containing a mixture of PETN and carbon fibres, a charge of PETN alone and finally a brass disc. - The device is held vertically with its open end dipping beneath the surface of the water, with a space remaining between the end of the explosive charge and the water. The explosive charge, on ignition, is impelled against the barrier of water before it is completely burnt and the impact produces a compression wave which travels back through the explosive charge enabling it to detonate. The detonation shock wave is transmitted through the water to the bottom of the tank.
Patent GB-1256988-A (GB)
IPC: F16H3/62
Filed: 1970-10-14
Abstract: 1,256,988. Variable speed gears. FORD MOTOR CO. Ltd. 14 Oct., 1970 [21 Nov., 1969], No. 48712/70. Heading F2D. To a Simpson gear is added an intermeshed planet train 40 for overdrive and a lock-up clutch 32 for the torque converter to increase the overdrive.
Patent GB-1257175-A (GB)
IPC: G08B13/16
Filed: 1968-12-20
Abstract: 1,257,175. Microphones. AMERICAN DISTRICT TELEGRAPH CO. 20 Dec., 1968 [22 Dec., 1967], No. 60845/68. Heading H4J. [Also in Division G4]  A burglar alarm system (see Division G4) uses a contact microphone having a frequency response of 7 KHz to 50 KHz and which comprises an aluminium disc 17 to which is fixed, by means of an electrically insulating glue e.g. an epoxy glue, a crystal e.g. of barium titanate. An aluminium housing 19 is similarly fixed to the disc, and has a slot 23 through which a shielded cable 20, having conductors 21, 22, passes. These conductors are connected to respective contact plates at each side of the crystal or to respective silvered surfaces of the crystal lead out.
Patent GB-1290498-A (GB)
IPC: F28B1/00
Filed: 1969-12-15
Abstract: 1290498 Surface condensers GEA LUFTKUHLER GES HAPPEL GmbH & CO KG 15 Dec 1969 [23 Dec 1968] 61003/69 Heading F4S A method of condensing vapour, e.g. steam or hydrocarbon vapour, flowing through heat exchange tubes externally cooled by a coolant (unspecified) comprises abruptly and intensely cooling the vapour immediately after its entry into the tubes and thereby reducing its flow velocity to below that of its entry velocity. In use, the vapour is introduced into the tubes at the highest practical velocity exceeding 70 M/Sec. and this coupled with the intense cooling is said to produce a reduction in velocity of at least 40% and probably up to 60% by the time it has passed through one quarter of the length of the tubes. The entry velocity may be 70M/Sec. for hydrocarbon vapour, and 120M/Sec. for steam.  In a condenser adapted for carrying out the method the first quarter of the tube length from the vapour entry end of the tubes has an increased heat transmitting surface over that for the remaining parts of the tubes. This increased surface may be provided by suitably proportioned or shaped fins, or by making such fins of a material of higher thermal conductivity than fins provided elsewhere on the tubes.
Patent GB-1303987-A (GB)
IPC: H01H35/34
Filed: 1968-10-30
Abstract: 1303987 Fluid actuation of switches SAUNDERS & DUDLEY Ltd 30 Jan 1970 [30 Oct 1968] 51512/68 Heading H1N A pneumatic diaphragm switch comprises a flexible diaphragm 5 bounding a chamber 2, fixed contacts 9, 10 and a moving contact 8, the switch being operable by a pressure difference of no more than three ounces per square inch between atmospheric pressure and the pressure in chamber 2. The switch is intended for use by a paralysed patient in a wheelchair, with a tube 12, connected to chamber 2, in his mouth. Blowing down tube 12 closes contacts 8, 9, while sucking closes contacts 8, 10 to control the forward and reverse drive of an electric motor driving the wheelchair. The motor is stopped by allowing chamber 2 to communicate with atmospheric pressure, when contact 8 assumes the position shown between contacts 9 and 10.
Patent GB-1307430-A (GB)
Title: Fasteners
IPC: F16B5/00
Filed: 1970-11-28
Abstract: 1307430 Stud and socket fastenings AMP Inc 8 Nov 1971 [28 Nov 1970] 56645/70 Heading E2B A moulded plastics fastener for fastening a member having a head and a shank to a mounting panel comprises a first resilient sleeve portion 16 connected at one end to a second coaxial sleeve portion 17 by a thin frangible portion 18, the first sleeve portion 16 having a bore 20 for the reception of the shank and a flange 22 for engagement with a surface of the panel, the outer surface of the first sleeve portion 16 tapering from a relatively large diameter adjacent the flange to a relatively small diameter adjacent the frangible portion 18 and the second sleeve portion having a bore diameter intermediate in magnitude, the bore diameter of the first sleeve portion and the relatively large diameter of the outer surface of the first sleeve  portion the second sleeve portion having a coaxial annular surface 31. A hand tool may be used to engage the sleeve portion 16 on a shank 13 inserted in an aperture 14 of the panel 15, and to exert pressure on the surface 31 of flange 30 to insert a nose 21 into the aperture and to cause the sleeve portion 17 to ride up an inclined surface 25 of a lip 24 thus fracturing the frangible portion 18 and allowing the sleeve portion 17 to move along the tapered surface to clamp the sleeve portion 16 on the shank 13. In a modification, the flange of the sleeve portion 16' is dish shaped and seals with the panel surface and a lip 52 locates and maintains the fastener 50 on the shank. The flange on the sleeve portion has a chamfer 55 and a tool is inserted between the chamfer 55 and chamfer 53 on the flange of the sleeve portion 16' to remove the fastener from the shank.
Patent GB-1310599-A (GB)
Title: Apparatus for dispensing and sampling fluid materials
IPC: G01N1/00
Filed: 1970-11-24
Abstract: 1310599 Sampling and dispensing fluent materials COAL INDUSTRY (PATENTS) Ltd 12 Oct 1971 [24 Nov 1970] 55850/70 Heading B8N  Apparatus for sampling and dispensing fluent material comprises a housing 4 defining an inlet 6, a cylindrical chamber 8 and an outlet 10, a rotor 16 with radial or tangential vanes 26, a further cylindrical chamber 32 defined by the housing and accommodating a rotor 37 having a transverse passage 42 whereby with the rotor 37 in one limit position a sample of the material being conveyed by rotor 16 passes via opening 30 into the passage and with the rotor in a second limit position, the sample within the passage is dispensed via outlet 36. The limit positions are defined by engagement between a projection (not shown) on the rotor 37 and the ends of an arcuate slot (not shown). In an intermediate position of the rotor 37 the passage may be in communication with the inlet 30 and the outlet 36, this providing a continuous sample of material being conveyed by rotor 16. The passge is V-shaped in a section transversely of the rotor 37 with the two portions adjoining at an angle a degrees (90 degrees # a degrees < 180), a degrees preferably being 132 degrees. The rotor 16 is driven, e.g. by an electric motor and the rotor 37 may be oscillated manually through drive means or preferably by powered drive means. The rotor 37 may be operated by the powered drive means at predetermined intervals, the intervals being related to the rotational speed of the rotor 16, so that the amount of material dispensed by the rotor 37 will be a proportion of the amount dispensed via outlet 10. The powered drive means may alternatively oscillate the rotor 37 continuously. The rotor 37 may include a plurality of longitudinally and radially or tangentially extending vanes instead of the passage 42.
Patent GB-1314217-A (GB)
Title: Anti-friction bearing pad
IPC: F16F1/20
Filed: 1970-06-26
Abstract: 1314217 Bearings; leaf springs DURIAWERK KARL KEMPF KG 26 June 1970 31149/70 Headings F2A and F2S An anti-friction bearing pad which is located between leaves 17, 18, Fig. 5. of a spring, has a porous metal layer 12 which contains an additional metal which is more electro-negative than iron to provide protection against corrosion and is impregnated with P.T.F.E. The layer may be of sintered bronze, for example, and the electro-negative metals may be zinc, cadmium, magnesium and aluminium, for example. In an embodiment a steel disc 10, Fig. 2 has a central hole 11 therein and has a powder mixture of bronze, graphite, molybdenum sulphide, tin and lead sprinkled thereon through a wire mesh. The disc 10 with its layer of powder, is then sintered under a protective gas to form a firmly adhering porous anti-friction layer 12. The latter has an electro-negative metal, such as zinc for example, incorporated therein by diffusion, tumbling or a galvanic method. The whole assembly is then impregnated with P.T.F.E. The wire mesh produces grooves 14, Fig. 4, which collect dirt &e. A layer 15 of electro-negative metal is diffused or galvanically applied to the steel disc 10. The pad is provided with a flange 13 by which it is locked into a hole 19, Fig. 5, in the leaf 18.
Patent GB-1315030-A (GB)
Title: Touch-wire overlay masks for cathode ray tubes
IPC: G06F3/0488
Filed: 1970-11-26
Abstract: 1315030 Touch display equipment PLESSEY CO Ltd 18 Nov 1971 56537/70 Heading G4H [Also in Division H1] A. mask for attachment to the face of cathode ray display tube and carrying touch elements which can be touched by the operator to indicate the location on the display of particular data, comprises a thin flexible sheet of plastics material provided on one surface with printed conductor tracks connecting the touch elements and an integral multi-point connector. In one arrangement, Fig. 3, pairs of touch elements formed by the pads PH1/l and PV1/1 &c. (not all of which are shown) are arranged in a coordinate system and are connected respectively to horizontal and vertical conductors. The mask comprises three layers, the first comprising 32 vertical conductor tracks V1, &c. spaced 0À5 inch apart and the corresponding conductor pads PV1/1, &c. on a plastics sheet, the second comprising a similar arrangement of horizontal conductor tracks and pads on a plastics sheet which is also provided with apertures through which the pads from the lower sheet can extend, and the third comprising a plain plastics sheet provided with apertures through which both sets of pads extend. The first and second layers extend to respective tail portions each of which is bent round an insulating plate 21 to form a connector plug. In a modification the mask is formed of two layers each of which has conductor and pads formed on the lower side of a plastics sheet; the pads are pushed through apertures in the sheets, bent over through 180 degrees, and secured to the front surface of the mask by means of an adhesive.
Patent GB-1322199-A (GB)
Title: Seismic prospecting
IPC: F42B3/08
Filed: 1970-12-21
Abstract: 1322199 Explosive charges IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Nov 1971 [21 Dec 1970] 60441/70 Heading F3A [Also in Division H4] An explosive charge for land or marine seismic prospecting is made by tightly folding, bunching or winding a length of detonating cord to form a compact charge which may be placed on or slightly above the surface of a prospect area and which needs little or no stemming. The charge shape may be a flat spiral or a hollow core, comprising cord having a core with 7-40 grams/metre of PETN. A detonating cord laid diametrically across several such spirals or joining the apexes of several such cores is used to initiate an array of charges. The optional stemming, e.g. of sand or gravel, prevents air blast from interfering with the recording of waves reflected or refracted from the subsurface, and enhances energy coupling to the subsurface.
Patent GB-1333550-A (GB)
Title: Apparatus for navigation training
IPC: G09B9/26
Filed: 1970-12-10
Abstract: 1333550 Radio navigation trainers SINGER CO (UK) Ltd 10 Dec 1970 [10 Sept 1969] 44784/69 Heading H4D  Navigation training apparatus for providing an aircraft simulator with data representing the positions of navigational aids (e.g. at airfields) comprises pairs of potentiometers, Fig. 2, input terminals IP1, IP2, IP3 carrying reference potentials, and switches, e.g. 31 selectively connecting terminals IP2, IP3 to the ends of the potentiometers remote from the ends commoned to terminal IP1. The embodiment is for use with a flight simulator in which a gantrymounted pen moves over a chart, the pupil's "track" being recorded thereon. The instructor then allocates a frequency and call-sign to a radio navigational aid (e.g. ADF, VOR or ILS) at the airfield-12, 14, Fig. 1-for the flight simulator, the pupil "flying" the simulator to the airfield using the allotted frequency and call-sign. The frequency-selecting apparatus consists of a "tuning matrix" which allots a frequency to each pair of a set of relays Fig. 3 (not shown); the frequency may be binary or "7 out of 19". Call-sign in Morse code is effected by a pulse generator and ring counter feeding into a selector matrix, Fig. 4 (not shown).