baber/WOPTO huggingface dataset:
Patent GB-1233206-A (GB)
IPC: H04R7/12
Filed: 1968-08-28
Abstract: 1,233,206. Moving coil loud-speakers; diaphragms. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 Aug., 1968 [31 Aug., 1967], No. 41093/68. Heading H4J. A moving coil transducer such as a loudspeaker comprises a diaphragm 10 (Fig. 1) of epoxy resin or other thermosetting resin and a self-supporting coil 13. The terminal ends 12 are of conductive strip are of the same material as the coil 13, e.g. aluminium, and form at least part of the coil 13. The ends 12 are completely embedded in the thermosetting resin at the periphery. The coil 13 is wound with the narrow edge of the conductive strip parallel with the coil axis. The coil 13 has a flat upper end embedded in the resin. Alternatively the coil consists of two cylinders 20, 21 (Fig. 6), the lower turn being common. The terminal ends 24 emerge tangentially (Fig. 5, not shown) or may be folded to emerge radially (Fig. 4, not shown). Glass powder reinforcement may be added to the resin. The coil 13 is provided internally and externally with a resin layer.
Patent GB-1233788-A (GB)
IPC: C09C1/58
Filed: 1968-09-20
Abstract: 1,233,788. Carbon black pellets. JONES GAS PROCESS CO. Ltd. 28 Aug., 1969 [20 Sept., 1968], No. 44890/68. Heading C1A. [Also in Division C3] Carbon black pellets containing a saponified rosin are made by pelleting loose carbon black in presence of a liquid medium comprising water containing a saponified rosin, and drying. The saponified rosin may be mixed with water immediately before contact with the carbon to avoid precipitation of insoluble rosinates. Alternatively, softened water may be used. Examples describe the preparation of thermal black pellets containing up to 0À5% by wt. of sodium abietate and rubber compositions containing them. The pellets have improved sphericity and particle size distribution. In a comparative example, thermal black is pelleted with 0À5% by wt. of molasses.
Patent GB-1233956-A (GB)
IPC: B60R22/347
Filed: 1968-10-15
Abstract: 1,233,956. Safety harness. INDUSTRIFJADRAR A.B. 15 Oct., 1968 [18 Oct., 1967], No. 48864/68. Heading A3V. [Also in Divisions E1-2] An anchorage device for a strap 4 comprises a frame 7, a spring urged retracting mechanism (not shown) for the strap carried by the frame, a buckle comprising a clamping bar 1 slidable relative to an aperture in a plate 3 of said buckle, the buckle being pivotally mounted in the frame, the arrangement being such that, in use, the strap passes through the aperture around the bar and back through the aperture to the retracting mechanism, and means for moving the plate about its pivot between a clamping position in which the surfaces of the plate are substantially parallel to the portion of the strap which is on the opposite side of the bar to the portion of the strap passing to the retracting mechanism so that pulling the first mentioned strap portion causes the bar to shift, so that the strap is clamped between the bar and one edge of the aperture and a releasing position in which the surfaces of the plate are substantially at right angles to the first mentioned strap portion. The means for moving the plate can be a lever, a pedal or remote control means. The retracting mechanism includes a roller actuated by a torsion leaf spring or alternatively a spiral spring.
Patent GB-1253106-A (GB)
IPC: G01F1/68
Filed: 1969-07-30
Abstract: 1,253,106. Inertia switches. EATON YALE & TOWNE Inc. 30 July, 1969 [20 Aug., 1968], No. 38173/69. Heading H1N. A switch for actuating vehicle safety apparatus in a collision comprises a movable mass displaceable against biasing means in a plurality of directions and means whereby the effective axis of the biasing means is shifted to provide the same biasing force in any of the said plurality of directions. As shown, a cylindrical mass 66 is coupled to a spring 68 by a rod 80 and upon impact the mass 66 moves to wedge between, and electrically bridge, an arcuate resilient contact strip 72 and a similar strip (70, Fig. 4, not shown) overlying and suitably spaced from strip 72. The mass 66 can move in any direction within an angle of about 120 degrees and the rod 80 shifts the spring 68 accordingly to a compressed position, such as that shown by the broken lines, for example. A strip 69 of energy-absorbing material prevents excessive movement of mass 66 under normal vibrations, or the housing 75 may itself be made of suitable material. The force of spring 68 is between two and sixteen times the weight of the mass 66.
Patent GB-1257138-A (GB)
IPC: D05B29/06
Filed: 1970-06-05
Abstract: 1,257,138. Sewing zip fasteners. OPTIHOLDING A.G. 5 June, 1970 [16 July, 1969], No. 27130/70. Heading D1G Continuous rows of plastics monofilament interlocking elements 1 are sewn to their respective stringer tapes in a sewing machine wherein the rows of interlocking elements, initially interlocked, are separated, sewn to the stringer tapes and once more interlocked immediately after the sewing operation. The interlocked rows of monofilaments 1 are fed from a container 6, separated by an uncoupler 13 and drawn by feed rollers 8 along with stringer tapes 2 through a guide 10 to the needles 4. The two parts of the sliding clasp fastener strips are joined together by a slider 11 and the formed strips are taken up by driven rollers 7. Pickups 12 are used to determine the tension in the monofilaments and regulate, through potentiometers the feed rate of the rollers 8.
Patent GB-1258689-A (GB)
IPC: H05K1/02
Filed: 1970-07-17
Abstract: 1,258,689. Multilayer printed circuits. HITACHI Ltd. 17 July, 1970 [23 July, 1969], No. 34809/70. Heading H1R. A method of manufacturing a multilayer printed circuit board free from any short circuits between laminated conductor layers comprises forming a first conductor layer 12 on a substrate 11, depositing thereon an insulating layer 13 which most probably would contain a pin-hole as indicated in the Figure and removing a portion of the conducting layer from below the pin-hole by spraying etching fluid over the whole surface of the insulating layer so that on application of a second conducting layer 14, a short circuit is avoided.
Patent GB-1264372-A (GB)
IPC: H04Q3/00
Filed: 1969-06-04
Abstract: 1,264,372. Automatic exchange systems. PLESSEY CO. Ltd. 6 May, 1970 [4 June, 1969], No. 28320/69. Heading H4K. A telecommunication exchange includes crosspoint switches each having a repeat relay in a route selecting network, each repeat relay being arranged to repeat an incoming mark signal to a plurality of outputs, a circuit arranged to forced release a repeat relay which due to a fault remains energized for more than a predetermined interval as determined by a timer and a contact operable to disable the forced release circuit to enable the repeat relay to respond to an incoming mark signal. As shown, a device g selects in known manner one of a plurality of markings incoming at I and this marking enables the repeat relay SO which repeats the marking on outputs O, and an auxiliary relay ST which closes contacts ST1 and ST2 starting a timer D1 and signalling over a wire B to a common alarm device. If due to a fault the selected marking persists for more than a predetermined time the timer times out and operates an error relay AL which via its contact AL2 shorts the repeat relay SO to earth causing it to release. After a further interval the common alarm device enables via a delay D2 or D3 and a gate G an astable generator A. The generator A enables a relay TO which via its contact shorts a normally enabled relay SI having a normally closed contact SI in series with contact AL2. This causes the repeat relay SO to be re-enabled by a marking signal selected at that time by the device g. The selected marking may be a valid marking or may be the persistent faulty marking in which case the above forced release/enable sequence is repeated.
Patent GB-1266173-A (GB)
IPC: H04N5/06
Filed: 1969-03-19
Abstract: 1,266,173. Television blanking and sync. signal generator. R.C.A. CORPORATION. 19 March, 1969 [19 March, 1968], No. 14433/69. Heading H4F. Relates to a television blanking and sync. signal generator which is capable of regenerating the blanking and sync. signals, and which is also capable of continuing its operation for periods in which the blanking and sync. signals of the video signal to be processed are completely lost or are received in unusable form. With switch 43 in the position shown external blanking and sync. information applied at terminal 44 is transferred to blanking generator 41, and switch arm 46 and terminal 47 complete an AFC loop for the blanking generator to effect its frequency control by the incoming sync. signal. When no sync. signal is received at terminal 44 such condition is sensed and the switch is automatically moved to its other position to form a return loop from the sync. generator 42 to the blanking generator 41. Also, switch arm 46 applies a fixed reference voltage to the basic timing unit of the blanking generator 41 to arbitrarily control its frequency at a preset rate. The blanking generator comprises a timing signal generator for producing a timing wave having an integral multiple relationship to the horizontal line repetition rate, e.g. twice; a horizontal blanking gate circuit operative to produce from the timing wave control pulses having width and a repetition rate equal to the widths and the repetition rate of the desired horizontal blanking signals; a composite blanking signal generator normally operative in response to the control pulses for producing horizontal blanking signals; a vertical blanking circuit including a vertical blanking gate operative at the field repetition rate of the television system to render the composite blanking signal generator unresponsive to the control pulses for a period of time equal to the time duration of the desired vertical blanking intervals, thereby causing the production by the composite blanking signal generator of the vertical blanking signals; and a vertical blanking phasing circuit including a line counter responsive to the timing wave to control the operative timing of the vertical blanking circuit to effect the proper phase relationship between the horizontal and vertical blanking signals produced by the composite blanking signal generator. The composite sync. signal generator which produces the horizontal and vertical sync. signals is controlled by signals derived from the timing signal generator and preferably also from the vertical blanking phasing circuit.
Patent GB-1287953-A (GB)
IPC: G01B5/20
Filed: 1969-08-28
Abstract: 1287953 Gear checking apparatus BJURO VZAIMOZAMENYAEMOSTI V METALLOOBRABATYVAJUSCHEI PROMYSHLENNOSTI 28 Aug 1969 42770/69 Heading G1M Brackets 2, Figs.1 and 2 are provided with coaxial bars 3 which serve to locate the gear checking apparatus on the addendum circle of the gear 43 being measured and a spindle 15 vertically movable against a measuring head 18 supports a measuring feeler point 17 in a blade 26 having an edge B, Fig.4, which edge passes across the axis of a blade extension 27 fitted into a locating bore 25 in a rotatable spindle 11. The spindle 11 is secured to a slide 9 fixed to a table 37 and is movable along a guide 6, and a sine bar 29 having rollers 30 secured thereto is freely mounted on the spindle 11 and may be angularly moved by means of a worm 39 and wheel 40, or locked to the spindle 11 and plate 42 by locks 41. In operation the apparatus is first set up without a gear 43 in position and the blade 26 is inserted in the bore 25 of the spindle 11 so that the edge B, Fig.4, is approximately parallel to the direction of motion of the carriage 14 along the slide 13. The carriage 14 is then moved by the screw 19 until the edge A of the point 17 comes into contact with the edge B of the blade 26 near the axis of the spindle 11. The blade 26 is then rocked by its handle 28 and the carriage is moved along its guide 13 until the reading on the head 18 is constant which indicates that the point C Fig.2, lies on the axis of spindle 11. A reading of this initial position of the carriage 14 is then taken. The guide 13 is then turned by setting and locking the sine bar 29, to an angle equal to the spiral angle on the pitch cylinder of the gear to be checked and the apparatus placed to contact the gear 43 as shown in Fig. 2, the axis of spindle 11 being aligned in the diametrical plane of the gear. The apparatus is then adjusted, by placing pre-determined gauge blocks on the platforms 8 and moving these blocks into contact with the bars 3, until the point C coincides with the pitch point P of the gear, Fig.6. Movement of the carriage 14 by the screw 19 then traces the tooth along the line of contact MPN and the head 18 detects the deviations of the point 17 as trans-  mitted to the spindle 15. The head 18 may incorporate a transducer whose signals may be supplied to a chart recorder, and by moving the carriage 14 the distances l1, 12, and l3 as read off the scale on 13 may be checked with the design values. The apparatus may also be arranged to check vertically positioned gears 43 and the carriage 14 may be shifted through 180 degrees if necessary by releasing the sine bar locks 41 and turning the worm 39 and wheel 40.
Patent GB-1295434-A (GB)
IPC: B22F9/22
Filed: 1968-11-25
Abstract: 1295434 Mixed oxides UNITED KINGDOM ATOMIC ENERGY AUTHORITY 17 Nov 1969 [25 Nov 1968] 55908/68 Heading C1A Mixed oxides are made by mixing an aqueous silica or metal compound sol with either an aqueous sol of a second metal compound or an aqueous solution containing cations of the second metal, and spraying the mixture as droplets into a vessel containing gas at such elevated temperature that reaction to form a partly or fully-reacted mixed oxide occurs, and then separating out a powder of such mixed oxide. Mixed oxide is defined as a single phase mixed oxide compound or solid solution containing two or more metal cations or silicon and at least one metal cation, but excluding more physical admixtures. An aqueous solor solution of a third metal may be incorporated in the starting mixture. The droplets (e.g. 10 microns) may be sprayed countercurrent to, or cocurrent with, a flow of gas e.g. air, nitrogen, argon, hydrogen or ammonia heated to 700- 1000‹C. directly or by radiation from the walls of the reaction vessel. Reaction takes place in gaseous suspension to form a hydrous oxide gel, which is then dehydrated to a ceramic gel e.g. 1-5 microns diameter. The particles may be powdered, shaped into green artifacts and sintered, or alternatively reduced to a metal alloy powder, The reaction vessel may be a vertical heated silica or alumina tube. Examples describe the preparations of (1) lead zirconatetitanate from titanium hydroxide sol, zirconium hydroxide sol and lead nitrate solution; (2) CaMgSiO 4  and Ca 3 MgSi 2 O 8  from calcium nitrate solution, magnesium nitrate solution and silica aquasol; (3) calcium magnesium silicate; and (4) tungsten-cobalt alloy (including hexagonal WCo 3 ) by reducing, in hydrogen at 1000‹C, a mixed oxide made from cobalt nitrate solution and tungstic oxide aquasol.
Patent GB-1296241-A (GB)
IPC: A61K8/02
Filed: 1970-02-17
Abstract: 1296241 Pharmaceutical and cosmetic filmforming compositions DOW CHEMICAL CO 17 Feb 1970 [17 Feb 1969] 7549/70 Heading A5B [Also in Division C3] Compositions suitable for forming on substrates a coherent film having a multiplicity of voids containing an effect agent therein comprise 0.25-10% (by weight of the composition) of a film-forming polymer; at least one effect agent in a proportion of 1-20 parts by weight per part of polymer; and a volatile solvent which dissolves both the effect agent and the polymer, the polymer being insoluble in the effect agent and not plasticised thereby and containing 5-30% by weight of ionic groups or groups capable of hydrogen bonding. The "effect agent" is defined as being an organic liquid which is an insect repellant, a perfume, an analgesic, a bactericide, an essential oil, a UV absorber, an emollient or a deodorant. Preferred film-forming polymers are those containing carboxylic acid groups, e.g. copolymers of acrylic, methacrylic, maleic, itaconic, citraconic or aconitic acid or of alkyl half-esters of the stated dicarboxylic acids. The solvent used is preferably a C 1 -C 4  alcohol, e.g. ethyl alcohol; mixtures of water with ethyl alcohol or glycol ethers are also useful. Exemplified as effect agent are homomenthyl salicylate and amyl p-dimethylaminobenzoate, which are used individually or together in sun screen formulations. The film-forming component in these formulations is an ethyl acrylate / methyl acrylate / methyl methacrylate / methacrylic acid copolymer, ethyl acrylate/ methyl methacrylate/acrylic acid copolymer or styrene/ethyl acid maleate copolymer. Other components present in the formulations, apart from solvent, are isopropyl palmitate, N,N- diethyltoluamide, glycol polysiloxane, carboxy polymethylene polymer, di-2-ethylhexyl amine and perfume. The isopropyl palmitate can be used alone as effect agent.
Patent GB-1297024-A (GB)
IPC: E02F7/04
Filed: 1970-02-03
Abstract: 1297024 Dredgers INGENIEURSBUREAU VOOR SYSTEMEN EN OCTROOIEN SPANSTAAL NV 3 Feb 1970 [3 Feb 1969] 5130/70 Heading B7A [Also in Division G1] In order to determine the weight of sludge deposited together with liquid into the hold 1 of a dredger 50, liquid is pumped into the hold at one or more places 4a to fluidize the sludge and a pressure pick-up 6 arranged at the or each place is arranged to actuate a weight indicator 8. As shown, pumps 4 arranged around the base of the hold 1 pump liquid from outside the dredger 50 to the hold 1 and pressure pick-ups 6 which may comprise diaphragms provide electric signals which operate indicators 8 through amplifiers 7. Each pick-up 6 may be arranged to sense the difference in pressure between two vertically spaced ports in the hold (Fig. 2, not shown) and may be connected to a computer which is arranged to provide an indication of and record the total amount of sludge in the hold and the loading speed of sludge to the hold, and to operate valves in a loading pipe to ensure the sludge when deposited in the hold is evenly distributed. Each pick-up may be associated with a plurality of ports (Fig. 4, not shown) the ports being connected successively by a valve and switching arrangement with the associated pick-up which is connected by a further switching arrangement to a plurality of indicators and a computer.
Patent GB-1297756-A (GB)
IPC: C06B45/10
Filed: 1971-04-19
Abstract: 1297756 Explosive compositions FRANCE ARMED FORCES MINISTER OF 19 April 1971 [13 April 1970] 26856/71 Heading C1D An explosive composition comprises particles of an explosive material dispersed in an elastomeric binder derived from one or more carboxylic polydiolefines, for example a carboxylic butadiene, and one or more chain extending and/or cross-linking agents. The polydiolefine contains at least two carboxyl groups per molecule and the chain extending agent at least two groups capable of reacting with the carboxyl groups. The elastomeric binder constitutes at least 8% by weight of the composite explosive. The explosive material may be octogen (which may be graphitized), hexogen, P.E.T.N., tetryl, or T.N.T. Other ingredients may be potassium or ammonium perchlorate as an oxidizing agent, aluminium or magnesium powder to produce a visual or incendiary effect or a whistling sound, dioctyl azelate or liquid polybutadiene as a plasticizer, 2,2<SP>1</SP>-bis-methylene- (4 - methyl - 6 - tert. - butylphenol), di - 2,6- tert.-butyl-p-cresol, or a mixture of nonyl phenyl phosphites as an antioxidant, and red lead to modify the detonation. Suitable chainextending or cross-linking agents for the carboxylic polydiolefines are bis-cyclopentadiene dioxide and epoxy compounds formed from triols, liquid polybutadienes, soya oils, or vinyl cyclohexene. Catalysts may be used to accelerate the cross-linking, for example acetylacetonates, metal alkyls, resorcylates, laurates, 2- ethyl hexanoates, or naphthenates of Fe, Pb, Sn, or Co. Also present may be wetting agents, for example a polytrifluorochloroethylene wax, lanolin, lecithin, sodium dioctylsuccinate, or chloronaphthalene. The ingredients may be kneaded together under vacuum, vibrated under vacuum to remove gas bubbles while being cast, and then cured, all these operations being carried out at not above 95‹ C.
Patent GB-1301369-A (GB)
IPC: G05D11/035
Filed: 1970-10-22
Abstract: 1301369 Measuring fluid-flow BAKER PERKINS Ltd 21 Oct 1971 [22 Oct 1970] 50344/70 Heading G1R In a method of, or apparatus for controlling the flow of gas in a pair of gas flow systems a and b each system is tapped at 14 and the gaspressures P 1 , P 2  are fed respectively to a first variable orifice 15 and a second fixed orifice 16 and the pressures P 4 , P 3  are tapped through 17 and fed to opposite sides of a differential switch 18 to operate a motor 19 through one or other of contacts 20, 21 to move a valve 13. A thermostatic controller 22 or "master" operates a further valve 13 which in turn may effect the "slave" system as described above should the pressures alter.
Patent GB-1311471-A (GB)
Title: Jointed constructions
IPC: E04B1/68
Filed: 1969-01-24
Abstract: 1311471 Expansion joints BAKELITE XYLONITE Ltd 22 April 1970 [24 Jan 1969] 4212/69 Heading E1B A construction includes a deformable cellular thermoplastic material 4 adhesively secured in an uncompressed state between adjacent structural members 1, 2. The material 4 is an expanded olefin polymer, e.g. ethylene/vinyl acetate copolymer or polyethylene. The material is coated with adhesive 5 and inserted into gap 3 between members 1, 2. Alternatively, the members 1, 2 are formed against the coated material.
Patent GB-1313743-A (GB)
Title: Manufacture of float glass
IPC: C03B18/06
Filed: 1969-07-28
Abstract: 1313743 Flat glass manufacture PILKINGTON BROS Ltd G A DICKINSON and H CHARNOCK 27 July 1970 [28 July 1969 19 Aug 1969] 37860/69 and 41419/69 Heading C1M In the manufacture of flat glass, a layer 23 of molten glass is established on a molten metal bath 7 and drawn by rollers 21 into ribbon form 36 to reduce the width and thickness as the velocity of the glass along the bath increases, outwardly and longitudinally directed forces, as by rollers 27, 28; 29, 30; 34, 25, are applied to the margins of the rapidly accelerating glass as it is being continuously and simultaneously thinned and reduced in width, the magnitude and direction of the marginal forces being set to produce progressive control along the length of the ribbon 36. Variations of the position and number of rollers are disclosed. A reheat zone may be established between partitions 26 and 31. Glass of thickness down to 2 mm. or below can be produced.
Patent GB-1314171-A (GB)
Title: Sight screens
IPC: E01F7/00
Filed: 1969-02-21
Abstract: 1314171 Curtains A BRAMLEY 8 May 1970 [21 Feb 1969] 9584/69 Heading A4S [Also in Division A6] A material for use as a sight screen for the outskirts of the playing area of ball games comprises a coarse rectangular mesh the openings of which are provided with opaque elements affording at least one opening in each mesh for the passage of air. In one embodiment the opaque elements comprise a plurality of strips of opaque plastics sheet material secured side by side to longitudinally extending threads with the strips overlapping the strips of the mesh below. In another embodiment the opaque elements comprise opaque plastics inserts with grooved edges which can be sprung into the mesh openings and retained by engagement with the threads of the mesh, the inserts being provided with louvres to permit the passage of air.