baber/WOPTO huggingface dataset:
Patent GB-1407326-A (GB)
Title: Contact for a cartridge fuse
IPC: H01H85/50
Filed: 1973-11-21
Abstract: 1407326 Two-part couplings AMP Inc 21 Nov 1973 [14 Dec 1972] 54022/73 Headings H2E, and H2G A unitary contact 10 for a cartridge-fuse holder is formed from a resilient metal sheet and comprises two superposed strips 11 having a mounting foot at one end being separated at the other end to form two walls 16 joined by a bight 17 to constitute a receptacle, each channel wall 16 being bent at an end portion remote from the bight into the form of a part surface 20 of a cone. The foot includes bent portions 23 leading into channel walls 26 and bight 25 and tabs 28 for insertion into holes 30 of a printed circuit board to be subsequently bent and soldered to the board circuitry. The free ends 19 of the walls 16 are bent to form a flared mouth while the separation of the strips forms two halves of a stop for receiving the conical conductive ends 37 of a fuse link 35, the ends being joined by a fusible conductive strip 38 over an insulating body 36.
Patent GB-1411623-A (GB)
Title: Open-air playing surfaces
IPC: E01C13/06
Filed: 1972-11-23
Abstract: 1411623 Drainage of soils A DORFER 23 Nov 1972 54141/72 Heading A1B [Also in Divisions A6 and E1] A method of producing an open-air hard playing area, such as a tennis court, comprises pouring an aggregate to form a layer, which is rolled and allowed to set, the aggregate containing sand and 5-30% silicon dioxide, based on the total weight of aggregate, in the form of a granular, moisture adsorptive silicacontaining constituent which may be silica gel or vermiculite. In each case the size of the grains distributed throughout the aggregate is preferably 5-4000 microns and, for a tennis court, 5-30 microns. A foundation surface may be prepared first, containing 30% of the total weight of silica-containing constituent which adds at least 5% silica to the foundation layer.
Patent GB-1406609-A (GB)
Title: Electron discharge devices
IPC: H01J29/82
Filed: 1971-11-24
Abstract: 1406609 Discharge tubes EMI Ltd 20 Oct 1972 [24 Nov 1971] 54481/71 Heading H1D In an electron discharge device including a tubular member 1 and a tubular electrode 12, said tubular electrode is supported from said tubular member by means of a resilient spacer member 9 having a number of angularly spaced protuberances 9A which project through said tubular electrode to support resiliently and locate said tubular electrode in spaced relationship relative to said tubular member. The tubular member may be an electrode, in which case the spacer member is made of insulating material, e.g. P.T.F.E. Alternatively, the tubular member may be an insulating envelope of the device, in which ease the spacer may be made of conductive material. The pick-up tube shown comprises a target 3 carried by a window 2 either sealed to the tubular glass envelope 1 by an indium seal or integral therewith. An electron pervious electrode structure 4 comprises a fine mesh 5 clamped between a flanged tubular support 6 and a ring 7. An insulating spacer 9 is secured to a wall anode 8 between a flange 10A of a ring 10 and a ring 11. The spacer 9 has protuberances 9A engaging the envelope 1 and projecting through apertures in a tube 12 provided with spring fingers 13 which engage the member 6. A lead (not shown) is connected to the lower end of the tube 12. The spacer 9 may have a finger projecting into a gap in the ring 11 to prevent rotation of the spacer. The protuberances 9A may project inwardly instead of outwardly, e.g. to support the middle electrode of an Einzel lens structure.
Patent GB-1412784-A (GB)
Title: Intrusion detector
IPC: G08B13/19
Filed: 1972-11-28
Abstract: 1412784 IR radiation detection systems BARNES ENG CO 28 Nov 1972[20 Dec 1971] 54929/72 Heading G1A [Also in Divisions G4 and H1] An intruder alarm system comprises a thermopile detector on which infra-red radiation from an intruder is imaged by an optical system with a wide field of view. The detector consists of a thermally insulating layer carrying a set of bismuth-antimony thermocouples arranged in rows and columns and connected in series Fig. I (not shown), the arrangement being such that movement of the intruder causes the polarity of its output voltage to alternate. As described the radiation after passage through a filter passing only for infrared wavelengths is focused on the detector by a spherical mirror with the detector support curved to be concentric with it Fig. 2 or by a wide angle lens Fig. 3 (not shown). Signals from the detector are fed via preamplifier 26 to a voltage comparator fed with a reference voltage. A positive signal causes the comparator to trigger monostable multivibrator 32 to give an output pulse of predetermined duration. Movement of the intruder changes the polarity of the signal, causing comparator 26 fed via inverter 34 to similarly trigger monostable multivibrator 40. The combined multivibrator outputs open AND gate 42 to actuate an audible or visual alarm 44. The incidence of false alarms, due to noise, flashes of light, etc. may be further reduced by designing the circuit so that more than two multivibrators have to be triggered by successive alternations to open the gate.
Patent GB-1375121-A (GB)
IPC: G01R31/309
Filed: 1972-11-28
Abstract: 1375121 Measuring infrared radiation distribution VANZETTI INFRARED & COMPUTER SYSTEMS Inc 28 Nov 1972 [1 May 1972] 54933/72 Heading G1A A device having a plurality of I.R. radiating elements, or having a plurality of points at which I.R. measurements are to be made after activation by the injection of thermal energy by a coherent radiation source, is inspected by a system utilizing means to displace the device and to scan the field of view of an I.R. detector to provide co-ordinate scanning of the device, means for converting the output of the detector into machine readable information, and a memory sorting a standard profile of I.R. information which is compared with the information obtained from the device. As shown, Fig. 1, a printed circuit board 18 is mounted on a carriage 22 driven by a stepping motor 36 and is scanned transversely by means of a mirror 46 rotated by a torque motor 64 to direct radiation via a flat mirror 58 and a parabolic mirror 54 to an I.R. detector 48 which may be provided with a liquid N cooling system. The output of the detector is filtered and converted to a digital form form for subsequent processing. The torque motor 64 is provided with a shaft encoder 66 and the apparatus is connected to a computer which is programmed to control the scanning of the circuit board and to record the output of the detector at predetermined points, identified by their co-ordinates, corresponding to the locations of the individual components on the board. Two black body I.R. sources 38, 40 are fixed at the ends of the scan across the circuit board to provide reference levels which may be used to adjust the gain of the detector circuit. The mirror 46 may be of the polygonal type. The circuit board is powered during the test and boards awaiting test may also be powered to allow them to achieve thermal equilibrium. The recorded data is compared with stored standard data and an output is provided which may be in the form of a list of deviations from the norm or a complete side-by-side listing of the measurements and the standard data for comparison by the operator. The stored data may be obtained by listing the co-ordinates of the components on the board and the scanning a number of standard boards to obtain the normal I.R. radiation values at these points. This information may then be recorded on punched tape for use in subsequent testing of similar devices for which purpose the information is fed back in to the computer memory from the punched tape. The scanning system may be arranged to provide measurements in polar instead of cartesian co-ordinates. The system may also be applied to the testing of other objects (e.g. for integrity of bonding), by locally heating them by means of a laser beam. The laser beam may be scanned across the object immediately before the detector scan by reflecting the beam from the rotating mirror while it is turned away from the detector.
Patent GB-1442558-A (GB)
Title: Electrical heating devices
IPC: F24H3/04
Filed: 1974-12-18
Abstract: 1442558 Vaporizers HJ SCHLADITZ 18 Dec 1974 [24 Dec 1973] 54956/74 Heading F4T An electrical heating device 3 for heating or vaporizing fluid comprises at least one elongated porous body 4, consisting of interfelted polycrystalline metal whiskers, or metallized non-metallic whiskers, or filaments connected metallically together at their points of contact, and arranged to be traversed in the longitudinal direction by the fluid to be heated, and at least one wall 6 of heat-conductive material bounding said body and being in heat-conductive relationship therewith, said wall forming, or having associated therewith, an electrical heating element 8. Body 4 is of cylindrical form sandwiched between two tubes 5, 6, which support electrical heating coils 7, 8. In a modification, the porous body 4<SP>1</SP>, Fig. 2, is plate-shaped and is surrounded by a jacket 35 carrying a coil 36. Coil 7 may be omitted with tube 5 being connected to a waste gas pipe. In a further modification, either or both tubes 5, 6, can be heated directly by an electric current. An air blower 27, which may be motor driven, is provided. In operation combustion air is supplied through a pipe 1 and blower 27 is caused to rotate. Fuel oil is supplied through a pipe 12, and body 4 is heated by coils 7, 8, and the oil vapour passes into a chamber 14. An electromagnet 24 is excited, whereby a spring-urged valve 18 is opened by a rod 20 connected to a pivotable lever 22. The vapour passes through the valve, mixes with the air and is moved through perforated plates 2, 31, where it is ignited in the combustion chamber to form a blue non- luminous flame. Heating device 3 may be carried by a cover 33 which closes an aperture in pipe 1 for easy replacement. Several heated porous bodies 4, 4<SP>1</SP>, may be provided.
Patent GB-1161080-A (GB)
Title: A Process and Equipment for Detecting Dislocations in Rock Strata.
Inventor: BORGES EBERHARD
IPC: E21B47/02
Filed: 1966-12-09
Abstract: 1,161,080. Acoustic detection of dislocations in rock. E. BORGES. 9 Dec., 1966 [3 Feb., 1966], No. 55149/66. Heading H4D. Dislocations in rock strata are detected by generating a seismic wave to one side of a suspected dislocation site and measuring the intensity of the directly-received wave on the other side. As shown, seismic waves generated in turn at positions 5, 6, 7 (by means of shotfiring, coal picks or drilling hammers) are received by detectors (operated together or in turn) at positions 8, 9, 10, 11 to determine the course followed by a dislocation 1. Wave attenuation can be found by comparing the detector outputs with reference values from detectors located at 12, 13, 14. The detector has a wave-conducting stem 19, one end of which is anchored in a bore-hole by an expandable member, the other end of which is clamped to one or more microphones 25 having amplifiers 26. The amplified detector output is fed to a meter display 28 provided with a recording camera 29.
Patent GB-1486342-A (GB)
Title: Storage stable urea formaldehyde resin syrup and process therefor
IPC: C08G12/12
Filed: 1974-12-31
Abstract: 1486342 Urea-formaldehyde resin syrup; chipboard MONSANTO CO 31 Dec 1974 [2 Jan 1974] 56154/74 Headings C3R and C3N A storage stable urea-formaldehyde resin syrup comprises a first stage urea-formaldehyde resin having a formaldehyde to urea molar ratio of from 3À0 : 1 to 3À5 : 1 in substantially neutral aqueous solution comprising not more than 50% wt. of water, and generally has a viscosity of from 60-1500 cps. at 40‹ C. The syrup may be prepared by heating an aqueous solution of formaldehyde and urea having a formaldehyde: urea molar ratio of from 3À0 : 1 to 3À5 : 1 and a pH from 8-9À5 for 3-5 minutes at a temperature from 75-90‹ C.; cooling the reaction mixture to 30-55‹ C.; adjusting its pH to a value from 1À7-2À1 with a mineral acid; reacting the acidified reaction mixture at a temperature from 30-55‹ C. until the viscosity thereof at 40‹ C. is from 60-1500 cps.; and neutralizing the reaction mixture generally to a pH of about 7 and then cooling generally to room temperature. The neutralized reaction mixture may be optionally subjected to a temperature from 60-100‹ C. for 1-5 minutes. The initial reaction mixture may be cooled while a portion of the water therein is removed by vacuum distillation. The pH adjustments are preferably made with sodium hydroxide and sulphuric acid. The syrups are useful as adhesives, wood glues and binder resins in the wood products industry, and for these purposes the F/U molar ratio can be adjusted by adding more urea and the water content can be varied either by adding or removing water. In the examples the F/U molar ratios of resin syrups prepared as above are adjusted to 1À3-1À35 by the addition of urea and the resulting resin solutions are used as binders in the preparation of wood particle boards.
Patent GB-1253390-A (GB)
Title: Arrangement for controlling and indicating the phase of an oscillation
IPC: H03M1/00
Filed: 1968-11-28
Abstract: 1,253,390. Photo-electric distance measuring. AGA AB. 28 Nov., 1968 [15 Dec., 1967], No. 56450/68. Heading H4D. [Also in Division G4] Apparatus for controlling and indicating the phase of an output signal from a periodic counter C (Fig. 1) includes a source of reference pulses SR of predetermined frequency coupled to the counter C so that the counter generates output signals at a submultiple of the predetermined frequency and modifying means for varying the number of pulses applied to the counter C a reversible counter PC indicating this variation which represents the phase of the output signal from the counter C. The modifying means preferably comprises switches SW1, SW2 and a further source of reference pulses SA (which may be derived from the original source SR via a delay) switch SW1 when actuated disconnecting the counter C from their reference source SR and connecting the counter PC where the pulses are accumulated negatively. Switch SW2 when activated supplies additional pulses to the counter C, these pulses being simultaneously accumulated in counter PC. To indicate the phase of the output signal from a second counter (C2, Fig. 2, not shown) relative to a first counter (C) an additional source of reference pulses (SA) may be connected via switches (SW3, SW4) to the counters (C, C2) respectively and to the decrementing and incrementing input of reversible counter (PC). The apparatus may be used to measure the distance of a remote object by emitting a modulated light beam and comparing the phase of a reflected beam with that of light which has passed over a calibration path CP (Fig. 3). Initially, the phase of a generator GH is adjusted so that the output pulses from counter C and mixer MX (receiving the signal from multiplier MU, the light modulator LM and generator GH) are in phase. The phase of a second counter C2 and the signal from photo tube PT receiving the signal over calibration path CP are then compared and either via a switch SW6 the phase of C2 is adjusted or via switch SW5, counter C and generator GH the phase of the signal from photo tube PT is adjusted to bring the inputs to a phase detector PD2 into agreement. With mirrors M1, M2 in position light reflected from the distant object is then received by tube PT and again the phases of the two inputs to detector PD2 are brought into agreement, the operation of switch SW5 or SW6 resulting in the pulses applied to C or C2 being accumulated negatively or positively respectively in counter PC. The count which is displayed represents the distance of the object.
Patent GB-1191570-A (GB)
Title: Method of Wet Spinning Acrylonitrile Copolymers.
IPC: D01F6/18
Filed: 1968-12-03
Abstract: 1,191,570. Wet spinning acrylonitrile copolymers. SOC. ITALIANA RESINE S.p.A. 3 Dec., 1968 [7 Dec., 1967], No. 57390/68. Heading B5B. Dimethyl formamide (DMF) solutions of copolymers of acrylonitrile containing 5 to 10% by wt. of comonomers other than acrylonitrile are wet spun to form filaments of density 0À95 to 1À0 and of denier 0À2 to 1À0, particularly 0À3 to 0À6, the operative conditions being as follows: (1) the copolymer content of the spinning solution is 17 to 23% by weight and the diameter of the spinneret orifices is between 0À12 and 0À18 mm.; (2) the coagulation bath, which is contained in a vertical cylindrical vessel, comprises 25 to 35% by weight of DMF and such a proportion of cumene that the DMF/cumene ratio is 0À3 : 1 to 0À7 : 1, the balance comprising normal 10 to 16 carbon atom paraffins in a proportion not exceeding 25% by weight, the bath being maintained at 40‹ to 70‹ C., preferably 50‹ to 65‹ C., coagulating liquid being continuously discharged from and fed into the bath so that it contains less than 0À05% by wt. of impurities and the percentage by weight of DMF in the coagulating liquid continuously discharged from the bath exceeds that in the coagulating liquid continuously fed into the bath by less than 3% and preferably less than 2% by weight, the proportion of DMF in both the coagulating liquid entering and leaving the bath being within the range 25 to 35% by weight; (3) the coagulating bath (or body of coagulating liquid) is contained in a vertical cylindrical vessel and the surface of the bath is less than 1À5 metres, preferably less than 1À2 metres, but more than 50 cm. above the level of the face of the spinneret immersed in the bath, the ratio of the diameter of the bath to its height is 0À1 : 1 to 0À7 : 1, particularly 0À2 : 1 to 0À45 : 1 and the ratio of the diameter of the spinneret to that of the bath is between 0À08 : 1 and 0À6 : 1, preferably 0À1 : 1 to 0À3 : 1. The coagulation solution is supplied to the bottom of the coagulating bath and discharged at the level of the surface of the bath. The filaments are drawn upwards through the bath in a vertical path and withdrawn from the bath and conveyed to the drawing bath while still containing a high percentage of solvent. Drawing is effected in a horizontal bath 1 to 1À5 metres long, the filaments travelling in a horizontal path from one end of the bath to the other; (5) the drawing bath comprises not less than 92% by wt. of 10 to 16 carbon atom normal paraffins, less than 5%, preferably less than 3% by wt. DMF, the balance being cumene, and is maintained at a temperature exceeding that of the coagulating bath by 50‹ to 100‹ C. The comonomers other than acrylonitrile in the copolymer may be methacrylonitrile, vinyl acetate, or, preferably, methyl and/or ethyl esters of acrylic and/or methacrylic acid.
Patent GB-1254528-A (GB)
Title: Process for the manufacture of synthetic polyethers capable of dilution with water
Inventor: BROECKER BERNHARD
IPC: C08G65/26
Filed: 1968-12-06
Abstract: 1254,528. Coating. REICHHOLD-ALBERT-CHEMIE A.G. 6 Dec., 1968 [8 Dec., 1967; 30 July, 1968], No. 58051/68 Heading B2E. [Also in Divisions C3 and C7] Coating compositions comprise a condensation polymer manufactured from (a) a compound of formula: where R has 1-20 carbon atoms, n'-0-3, Z is alkyl, cycloalkyl or aryl when h=0 and n"=1; alkyl, cycloalkyl, aryl or a group of formula: when n=1 and n"=0 or alkylene, cycloalkylene, arylene or a group of formula: when n+n"=2, R', R" and R"' are alkyl and R 1  is aliphatic or aromatic, b) a phenol-aldehyde condensate containing methylol groups and (c) a compound of formula: (HO) n3  R, (COOH) n4  where R 4  is C 1-20  aliphatic, n 3 =1 or 2 and n 4 =1 or 2 by reacting (b) with (a) followed by (c) or reacting (b) with (c) followed by (a). Component (a) may be an epoxy-resin from bisphenol A and epichlorhydrin. Component (b) may be an etherified resole prepared by condensing p-tert.-butylphenol or bisphenol A with formalin in the presence of NaOH, etherifying the product with n-butanol in the presence of H 3 PO 4 , removing water by azeotropic distillation of toluene and neutralizing with Ca(OH) 2 . Component (c) may be ricinoleic acid, methyl ricinoleate, or butyl glycollate. The reaction between (b) and (a) may be catalysed by benzyl trimethyl ammonium hydroxide. The reaction with (c) may be catalysed by p-toluene sulphonic acid or H 3 PO 4 . At this stage the reaction mixture may also include soya oil fatty acid. Where component (c) is an ester the, ester groups may be removed by saponification with NaOH, KOH or methanolic KOH and neutralization with HC1 or H 2 SO 4 . The product of the invention may be neutralized with ammonia or an amine, e.g. penta (hydroxypropyl) diethylene triamine, hexa (hydroxypropyl) triethylene tetramine, tetra(hydroxy propyl) ethylene diamine, NEt 3 , NMe 3  or hexamethoxymethyl melamine. This product may be compounded with solvents, e.g. water and butanol, pigment, e.g. TiO 2 , Fe 2 O 3  or lead silicochromate, or a resole carboxylic acid salt prepared by condensing p-tert.-butyl phenol with formaldehyde in the presence of NaOH, etherifying the product with n-butanol in the presence of H 3 PO 4 , removing water by azeotropic distillation with toluene, condensing with methyl ricinoleate in the presence of p-toluene sulphonic acid, saponifying with KOH, neutralizing with H 2 SO 4  and forming a salt with NEt 3 . The coating composition may be applied by dipping, spraying, flooding, casting or brushing to timber, concrete, brickwork, plaster, iron, steel, or non-ferrous metals with or without pre-treatment such as passivation, phosphotization, electrochemical treatment, galvanization or tin-plating. The coating may be stoved.
Patent GB-1411966-A (GB)
Title: Photosensitive polyamide compositions
IPC: C08G69/48
Filed: 1972-12-15
Abstract: 1411966 Photopolymerizable compositions containing polyamides UNITIKA Ltd 15 Dec 1972 [15 Dec 1971] 58196/72 Headings C3P and C3R [Also in Divisions G2 and C2] Photosensitive compositions useful in the production of printing plates comprise one or more polyamides having pendant sulphonate salt groups, one or more unsaturated compounds having at least two polymerizable ethylenic double bonds, and one or more photoinitiators. The polyamide sulphonate can be prepared by reacting a polyamide-forming reactant with a polyfunctional compound having a sulphonate salt group, e.g. a triazine compound containing aromatic ether (and optionally also hydroxyl group) and sulphonate substituents; or by reacting a polyamide-forming reactant with an aromatic or aliphatic sulphonate salt having two amide-forming functional groups. Preferred polyamides into which the sulphonate groups are introduced are copolyamides of nylon 6, nylon 66 and poly-(hexamethylene-(5-sodiumsulpho)-isophthalamide). The cation of the sulphonate salt groups is preferably alkali metal ammonium, or quaternary ammonium. Suitable unsaturated compounds include bis-(alk)-acrylamides, glycol di - (meth) - acrylates, tris - N- (meth) - acryloyl - hexahydrotriazine, pentaerythritol tetra-(meth)-acrylate, glycerol tri-(meth)- acrylate and O,N - diacryloyl - m - aminophenol. Examples of photoinitiators are benzoyl peroxide, azobisisobutyronitrile, diphenylazomethane, benzophenone and derivatives, benzoin and derivatives, anthraquinone, p-nitro aniline and picramide. Optional components include polymerization inhibitors, compounds containing only one polymerizable ethylenic double bond, e.g. acrylamide and its derivatives and glycol mono-(meth)-acrylates.