baber/WOPTO huggingface dataset:
Patent GB-1364906-A (GB)
Title: Dictation apparatus
IPC: G11B25/04
Filed: 1972-12-13
Abstract: 1364906 Mounting discs on shafts INTERNATIONAL BUSINESS MACHINES CORP 13 Dec 1972 [20 Dec 1971] 57475/72 Heading F2U [Also in Division G5] In dictation apparatus, a magnetic disc 160 is clamped between a spindle cap 164 and a rotatable stop 162, a pin 157 on the cap engaging a disc hole 161, while a conical portion 167 of a spindle 151 engages a central disc hole. The spindle 151 and spindle cap 164 are biased upwardly by respective springs 153 and 156 but relative movement therebetween is limited by a coupler pin 158. Both the spindle and the spindle cap can thus be disengaged from the disc by depression of the spindle cap by means of a bell crank 170, to permit edgewise removal of the disc. The above assembly is not used to drive the disc, which is driven by pinch rollers applied to its rim; rotation of the spindle cap 154, and of a worm gear 155 thereon, is rather used to drive a magnetic transducer.
Patent GB-1316617-A (GB)
Title: Method and apparatus for signal-to-noise ratio in a closed fluid  system
IPC: E21B47/18
Filed: 1970-12-07
Abstract: 1316617 Acoustic telemetry MOBIL OIL CORP 7 Dec 1970 [12 Dec 1969 27 July 1970] 57935/70 Heading H4D In a system for logging a downhole drilling parameter and/or earth formation characteristics while drilling a well, in which downhole data are telemetered to the surface as an acoustic pressure wave signal in the drilling mud, noise on the signal and generated at the surface by, e.g., surges in the output of mud pump 36 is substantially cancelled by measuring the pressure wave signal at two points A, B spaced along the signal path, time-shifting one of the two resulting measurement signals by an amount corresponding to the travel time of sound between the two points, and obtaining the difference between the time-shifted signal and the other measurement signal. The downhole acoustic signal is generated in the Fig. 1 embodiment by a known system in which the output of probe 47 controls the rotation rate of a valve 52 in the drilling mud flow path. Transducers at A and B, provided with circuitry to equalize their sensitivity, give the two measurement signals. The signal from A is delayed a time #, the delayed signal is polarityinverted, and the inverted signal is added to the signal from B to give a substantially noisefree sum comprising two desired signal components mutually time-shifted by 2# (because the desired signal and the noise travel in opposite directions in the mud). If the desired signal is sinusoidal, A and B may be spaced by a quarter-wavelength of the acoustic signal in the mud so that the two desired components add in phase in the sum. To enhance the noise cancellation, the signal from A may be filtered, prior to time-shifting, by a function which adds distortion similar to that undergone by the noise signal in passing from A to B via the mud; in this case the added distortion on the desired signal, and the 2# time-shift, are removed by processing the said sum with a further filter function. The resulting noise-free signal is recorded. The above time-shifting and filtering procedures may be carried out by analogue or digital techniques.
Patent GB-1337995-A (GB)
Title: Composite bearings
IPC: C08J5/16
Filed: 1970-12-07
Abstract: 1337995 Bearings GARLOCK Inc 7 Dec 1970 [2 Feb 1970] 58068/70 Heading F2A A plain bearing has a backing member e.g. of steel, to which is secured a bearing layer of a solid lubricant and fibres whose strength is not reduced at high temperatures. Suitable fibres are those of aromatic polyamides, aromatic polysulphones, aromatic polyimides, aromatic polyester imides or carbon or graphite. The solid lubricant may be particulate PTFE or the sulphides, selenides or tellurides of Mo, W or Ti, or lead diiodide, boron nitride or carbon or graphite.
Patent GB-1154049-A (GB)
Title: Improvements in or relating to Avalanche Diodes.
IPC: H01L21/00
Filed: 1966-12-29
Abstract: 1,154,049. Semi-conductor devices. SIEMENS A.G. 29 Dec., 1966 [30 Dec., 1965; 12 May, 1966], No. 58101/66. Heading H1K. An avalanche diode having a negative resistance characteristic comprises two highly doped end zones separated by a relatively low-doped space-charge zone not more than 10 Álong and doped so that charge carriers produced at a reverse biased rectifying junction at one end produce an amplified space charge at the opposite end by avalanche multiplication. A P<SP>++</SP>N<SP>+</SP>NN<SP>++</SP> diode, Fig. 3, is produced by epitaxially growing an N-type layer followed by an N<SP>+</SP>-type layer on the surface of an N<SP>+ +</SP>- type substrate 1. The surface of the wafer is masked and boron is diffused-in to produce an annular P-type region and a second boron diffusion through a mask 4 produces a shallow P <SP>++</SP> -type region. The annular P-type region forms a guard-ring to prevent breakdown at the edge of the P<SP>++</SP>-type region. The N++- type substrate and the P<SP>++</SP>-type region are contacted by a gold layer 2 and a silver layer 3 applied by evaporation. A P<SP>++</SP>IN<SP>++</SP> diode, Fig. 4 (not shown), is produced by epitaxially growing an I-type layer on an N <SP>++</SP> -type substrate and diffusing boron into the surface to produce the P <SP>+</SP> <SP>+</SP> -type region which is not in this case provided with a guardring. A P<SP>+</SP><SP>+</SP>N<SP>+</SP>NN<SP>+</SP> <SP>+</SP> diode, Fig. 5 (not shown), is produced by epitaxially growing a highresistivity N-type layer on an N<SP>++</SP>-type substrate, masking the surface with a layer of silicon dioxide and forming a double diffused hyper-abrupt junction by diffusing-in phosphorus to produce an N<SP>+</SP>-type region and then diffusing-in boron to produce a P<SP>++</SP> -type region which overlies the whole width of the N<SP>+</SP>-type region and extends into contact with the N-type layer to localize the avalanche to the central part of the diode. Complementary devices may be produced using gallium and arsenic as impurities. The semi-conductor material may be silicon, germanium or gallium arsenide. The completed diode is mounted in a housing, Fig. 6 (not shown), which comprises a ceramic ring (5) provided with a bottom contact (6) and a top lid (8) having a compression clip (7) which contacts the smaller electrode (3) of the diode. Suitable waveguide and cavity arrangements are described, Figs. 7 to 9 (not shown), to provide microwave oscillator and amplifier circuits.
Patent GB-1399648-A (GB)
Title: Stepwise control for two-step control with switching stages
IPC: G05B11/14
Filed: 1972-12-15
Abstract: 1399648 Automatic control of temperature STAFA-CONTROL-SYSTEM SG SAG 15 Dec 1972 [17 Dec 1971] 58119/72 Heading G3R [Also in Division G4] In a control system wherein measured value is compared with a reference to produce a regulating value x w  to control the sequential activation or deactivation of switches A,B,C,....(according as x w  is negative or positive) so that respective regulating devices are made to produce a combination y of outputs P A , P B , P C ,... (Fig.5) which approximate a desired regulating quantity, the first two switches A, B (measured outwards from x w =0) switch in the devices providing the smallest output values P A , P B  and the output values P C , P D , .... provided by the further switches C, D, .... are each not greater than the sum of the outputs PA, P B , P C , of the preceding devices. As described the system controls temperature in response to a regulating voltage x varying in the ranges 0-10, 10-20 (corresponding to x w #0 and x w 50), relay switches 53, Fig 5 controlling heaters to provide kW outputs PA, etc. Voltage x is obtained from a thermistor as variable amplitude pulses and passes through an integrator 50 and a time delay 51 Fig. 7 (not shown) to transistorized circuits 52 which each contain two potentiometers on which are set the switch-on and switch-off values Xe, Xa for the relay (Rel) and switch 53 of that circuit. In the example of Fig. 3 switches A-F have (Xe, Xa) values of (10.4, 9.6), (10.8, 9.2), (11.5, 8.5), (12.5, 7.5),(14.5, 5.5) and (18.0, 2.0) and switch heaters with outputs of 1, 1, 2, 3, 6, 11 kW respectively (total output y=24 kW). If an output of e.g. 15.3 kW is required to maintain a given temperature then the heaters A-F are switched on and off in turn as shown in Fig. 4 (starting with all heaters on (y=24 kW) when the system is initially switched in) until finally heaters, F, D, B are permanently on (y=15 kW) and heater A is being switched on and off to provide a final oscillatory output of 15-16 kW. Thus after the initial "stabilizing" periods a, b only heater A having the smallest output continues to be switched on and off.
Patent GB-1421144-A (GB)
Title: One piece gelatin capsules containing chloral hydrate
IPC: A61K31/11
Filed: 1972-12-29
Abstract: 1421144 Chloral hydrate capsules E R SQUIBB & SONS INC 29 Dec 1972 [29 Dec 1971] 58135/72 Heading A5B A pharmaceutical product comprises a onepiece gelatin capsule containing a substantially non-aqueous composition comprising chloral hydrate and a buffering agent for maintaining the pH within the range 4 to 7, e.g. an alkali metal salt of a carboxylic acid. The capsule fill may be liquid and contain a non-aqueous liquid such as a glycol, a polyethylene glycol or glycerol and, optionally, a viscosity builder such as fumed silica, silica, silicic acid, methyl cellulose, a hydroxyalkyl cellulose or an alkaline earth metal silicate, or it may be a solid, e.g. a gelatin matrix through which the chloral hydrate and buffer are distributed.
Patent GB-1322196-A (GB)
Title: Golf ball and composition for forming the same
IPC: A63B37/00
Filed: 1970-12-08
Abstract: 1322196 Golf balls ABBOTT LABORATORIES 8 Dec 1970 [29 Dec 1969] 58314/70 Heading A6D [Also in Division C3] Unitary golf balls are prepared by vulcanizing a mixture consisting essentially of 60-90 parts by weight of a diolefin elastomer having at least 95% cis-configuration, 10-40 parts by weight of a styrene-butadiene copolymer elastomer containing a major proportion of butadiene and 20-50 parts by weight of a methacrylate ester of a polyol 0.5-10 parts by weight of a peroxide initiator and 30-60 parts by weight of non-black reinforcing and filler materials the diolefin elastomer and copolymer elastomer together constituting 100 parts by weight, optionally up to 10 parts by weight of antioxidants accelerators and/or whitening agents. Preferably trimethylolpropane trimethacrylate is employed with dicumyl peroxide as initiator, hydrated silica and titanium dioxide as filler and whitening agent.
Patent GB-1207378-A (GB)
Title: Bundling strap
IPC: B65D63/10
Filed: 1967-12-22
Abstract: 1,207,378. Strap fastenings. THOMAS & BETTS CORP. 22 Dec., 1967 [24 Feb., 1967], No. 58333/67. Heading E2B. A bundling strap comprises a head portion 15 and a flexible tail portion 11 of strip configuration extending from the head portion said tail portion being formed on one surface with gripping means 21 said head portion comprising a body member provided with three parallel spaced arm elements 23, 23a, 26 extending transversely with respect to said tail portion, first and second arm elements 23, 23a being spaced from each other by a distance not greater than twice the thickness of the tail portion and the third arm element 26 being spaced in the longitudinal direction of the tail portion, from the first and second arm elements so as to be disposed between said elements and the tail portion, whereby when in use the tail portion is adapted to be passed around a bundle of articles and passed between the first and second arm elements of the head portion then around the third arm element and finally between the first and second arm elements again, so as to place the gripping means 21 on the part of the tail portion between the first and second arm elements in face to face contact, thereby to prevent the tail portion from being pulled out of the head portion in a longitudinal direction. The arm 23 extends from a sidewall of the head portion and is U shaped in cross section and L shaped in axial section; the second arm 23a extends towards the arm 23 from the opposite sidewall 24 of the head portion and there is a fourth arm 23b parallel with arm 23a. The arm 26 has gripping means 30 to engage the gripping means 21.
Patent GB-1112070-A (GB)
Title: Apparatus for producing,by means of hydraulic pressure,a relative linear displacement between a number of columns and a body capable of being moved along them,such as a pontoon
IPC: E02B17/08
Filed: 1966-12-30
Abstract: 1,112,070. Lifting jacks. WERF GUSTO N.V. 30 Dec., 1966 [10 Jan., 1966], No. 58423/66. Heading B8J. [Also in Division E1] Hydraulic apparatus for raising a pontoon 1 along columns 2 step-by-step, as described in Specification 850,143, comprises sets of driving and blocking pawl members in the form of girders 4 arranged to engage teeth 3 on the columns 2 and respectively mounted in frames 5, 8 connected to the pontoon 1 by hydraulic cylinders 7, 10. The frames 5, 8 are rectangular, enclose the column 2 and are guided on it, and are constructed to be resistant to bending but poorly resistant to torsion. In consequence, it is stated that close tolerances on the teeth are unnecessary and slight inclination of the column 2 and the frames 5. 8 is allowable.
Patent GB-1365980-A (GB)
Title: Drives for hoists winches and similar machines
IPC: B66D1/12
Filed: 1971-12-17
Abstract: 1365980 Control of two AC motors HERBERT MORRIS Ltd 14 Dec 1972 [17 Dec 1971] 58869/71 ÀHeading H2J Two motors are used in a drive for a hoist or similar device, a squirrel cage motor D having disc motor E, F, mounted on its shaft together with a drum brake C, the drive being transmitted by gear-box A to a rope drum B. In operation the disc motor is energized first to rotate the shaft, then the squirrel cage motor is switched on for high speed winding, the disc motor being disconnected. The reverse procedure is used for slowing down the drum, the brake being applied to stop the shaft and hold the load. The position of the motors on the shaft may be reversed (Fig. 2, not shown), and the disc may have ferrous and non-ferrous portions (Fig. 3, not shown). In a further modification (Fig. 4, not shown) the drum brake is replaced by a caliper brake acting on the disc (G).
Patent GB-1327808-A (GB)
Title: Spectrally sensitised photographic silver halide emulsions
IPC: G03C1/29
Filed: 1970-12-11
Abstract: 1327808 Spectrally sensitized photographic silver halide emulsions EASTMAN KODAK CO 11 Dec 1970 [12 Dec 1969] 58870/70 Heading G2C A photographic light-sensitive silver halide emulsion is spectrally sensitized with (1) a benzimidazolonaphthothiacarbocyanine dye and (2) a benzimidazolothiacarbocyanine dye. Dye (1) preferably has the formula:- and dye (2) preferably has the formula: wherein R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are each alkyl, substituted alkyl (e.g. aralkyl) or cycloalkyl; R<SP>5</SP> and R<SP>6</SP> are each alkyl having 1-4 carbons; R<SP>7</SP>, R<SP>8</SP>, R<SP>9</SP>, R<SP>10</SP>, R<SP>11</SP> and R<SP>12</SP> are each H or halogen; each R<SP>13</SP> is H, halogen, sulpho, alkyl, cycloalkyl, alkoxy or aryl; each R<SP>16</SP> is H, halogen, alkyl, cycloalkyl, alkoxy or aryl; R<SP>14</SP> and R<SP>15</SP> are each H, halogen, cyano, alkyl, cycloalkyl, alkoxy, alkylaminocarbonyl,trifluoroalkyl, trifluoroalkylsulphonyl or an acyl radical of a monobasic fatty acid; L<SP>1</SP>, L<SP>2</SP>, L<SP>3</SP> and L<SP>4</SP> are each a methine group which may be substituted; X<SP>1</SP> and X<SP>2</SP> are each an anion; n, p and k are each 1 or 2; and m is 1, 2, 3 or 4; or when R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> or R<SP>4</SP> represent a sulphoalkyl or carboxyalkyl group and X<SP>1</SP> or X<SP>2</SP> represents a hydroxyl ion, the internal anhydride of such dye or dyes.
Patent GB-1448215-A (GB)
Title: Carpets
IPC: B32B5/24
Filed: 1972-12-21
Abstract: 1448215 Producing foam backings on carpets IMPERIAL CHEMICAL INDUSTRIES Ltd 21 Dec 1973 [21 Dec 1972] 59106/ 72 Heading B2E A method of forming a polymeric foam backing on a carpet 13 comprises applying a foam 7 of polymeric material (e.g. vinyl chloride polymer or copolymer) to the back of the carpet, and passing the carpet and foam coat thereon through an oven 12 to gel or cure the foam while an endless belt 8 is contacting the surface of the foam. The foam is preferably plasticised. As shown in Fig. 1, the foam is applied to the belt using a doctor blade 10 and transferred to the carpet. Alternatively Fig. 2 (not shown), the foam may be applied using a doctor blade to the back of the carpet before contact with the belt. In either embodiment a lock coat may be applied to the back of the carpet before the foam. The endless belt may be patterned repetitively to form a relief pattern on the foam surface.
Patent GB-1388596-A (GB)
Title: Conversion from fixed to floating point in electronic computers
IPC: H03M7/24
Filed: 1972-04-19
Abstract: 1388596 Digital calculator ING C OLIVETTI & C SpA 19 April 1972 [22 April 1971] 59392/72 Divided out of 1388593 Heading G4A The subject matter of this Specification is identical to that of Specification 1,388,593, but the claims relate to an arrangement for performing fixed to floating point conversions.
Patent GB-1468148-A (GB)
Title: Windings for dynamo-electric machines
IPC: H02K3/22
Filed: 1972-12-22
Abstract: 1468148 Coils for dynamo-electric machines C A PARSONS & CO Ltd 26 Feb 1974 [22 Dec 1972] 59450/72 Addition to 1316256 Heading H2A In the dynamo-electric machine of the parent patent, some of the strands are ducted composite strands, the high conductivity material having a resistivity of less than 3 x 10<SP>-8</SP> ohm-metre and the high mechanical strength material having a 0À2% proof stress greater than 30,000 p.s.i. The ducts may carry coolant and may be formed in the high conductivity or high mechanical strength material or in both. The high mechanical strength material may be formed as a tube of rectangular or circular cross-section, Figs. 1, 2 (not shown), having several high conductivity segments bonded to its exterior surface. The strand shown comprises six high conductivity segments 1 and a hollow tube 4 of high mechanical strength material mutually separated by insulation 3, the whole being surrounded by a low conductivity tube 7. A conductor may comprise a number of such strands arranged in a circle around a central strand.
Patent GB-1371360-A (GB)
Title: Peripheral screen for root separator wheels
IPC: A01D19/10
Filed: 1971-12-23
Abstract: 1371360 Screening apparatus HERRIAU S.A. 23 Dec 1971 [24 Dec 1970] 59873/71 Heading B2H [Also in Division A1] A rotary separator 1 of a root harvester has a peripheral screen comprising parallel bars, the upper ones 8, 9 being continuous and the lower ones each being formed by two bar elements, e.g. 14, 16 which are secured at their forward end only. The free ends of the trailing bar elements bend outwards from the periphery of the separator, the forward ends being fixed to a stay 13 carried by the continuous bars.
Patent GB-1272340-A (GB)
Title: Derivatives of neriifolin
IPC: A61K/
Filed: 1970-12-17
Abstract: 1,272,340. Neriifolin derivatives. BOEHRINGER MANNHEIM G.m.b.H. 17 Dec., 1970 [19 Dec., 1969], No. 60001/70. Heading C2U. The invention comprises compounds of formula (wherein one of R 1  and R 2  is C 1-3  alkyl or C 2-3  alkoxyalkyl and the other is H or C 1-3  acyl), and their preparation from neriifolin by alkylation followed, when required, by acylation. The inventive compounds are said to be cardioactive, and may be made up with carriers into pharmaceutical compositions for oral administration.
Patent GB-1194619-A (GB)
Title: Writing Ink for Writing Boards
IPC: C09D11/16
Filed: 1968-12-24
Abstract: 1,194,619. Inks for writing boards. PILOT MAN-NEN-HITSU K.K. 24 Dec., 1968 [29 Dec., 1967], No. 61356/68. Heading C4A. An erasable ink for writing boards comprises a dye, a hygroscopic salt whose saturated aqueous solution at 20‹ C. produces a relative humidity less than 40% in the surrounding atmosphere, and water and/or an organic solvent. Specified salts are potassium acetate, thiocyanide, fluoride and iodide, lithium bromide, chloride and iodide, and sodium iodide. Specified organic solvents are ethanol, propanol and butanol, methyl ethyl and methyl i-butyl ketones. xylene, toluene, ethylene glycol monoethyl ether, and diethylene glycol monomethyl ether. Optionally a minor amount of a natural or synthetic resin soluble in the solvent may be included, these being:-Example 5, polyvinyl alcohol; Example 6, shellac; Example 7, polyvinyl pyrrolidone; Example 8, polyvinyl acetate; Example 9, a phenolic resin.
Patent GB-1374970-A (GB)
Title: Thin walled containers
IPC: B65D3/14
Filed: 1970-12-30
Abstract: 1374970 Containers; packages JOHN WADDINGTON Ltd and SCHWEPPES Ltd 23 Dec 1971 [30 Dec 1970] 61817/70 Headings B8D and B8C A package comprises a plastics drinking cup 40, and a carbonated beverage-filled and sealed plastics container 12, which is frictionallyretained in the cup by the internal pressure of the contents in the container urging a container wall portion 18 into firm engagement with the cup but which may be readily-removed from the cup on release of the internal pressure. The container may be of gas impermeable plastics or, as shown, may comprise a easing 12 of polystyrene, A.B.S., or polyvinyl chloride having an internal lining 14 of a gas impermeable plastics, such as a high barrier acrylic material. The lining may be formed by a separate sac, a sheet which is vacuum formed to shape together with a sheet forming the casing, or a sprayed-on coating. The container is scaled by a seamed-on plastics or metal lid 15. The metal lid may have a readily-removable section provided with a finger ring. The container may be located in the cup before, during, or after filling with the carbonated beverage at or below room temperature. Reference is made to Specification 1,374,969.
Patent GB-757808-A (GB)
Abstract: 757,808. Capacitors. AIRCRAFT-MARINE PRODUCTS, Inc. Nov. 30, 1953, No. 33180/53. Class 37. An electrical condenser comprises spaced electrodes, at least one sheet of indurated bentonite refractory material and a polyvinyl carbazole pressed into adhesion with the adjacent surface of the electrodes and the dielectric sheets. The electrodes, Fig. 1, are cut to appropriate shape with integral leads 14, 16. Each plate is coated with polyvinyl carbazole which adheres to its surface and which may be applied as a lacquer. Such a lacquer may be made by dissolving commercial K30 polymer in three times its weight of toluene and is adding 21-5 per cent of plasticizer. If the condenser is for high-frequency use a non-polar compound should be used as the plastioizer. Amyl naphthalene diphenyl or terphenyl are suggested. The sheets 10, 12 are cleaned and etched with nitric acid before the lacquer 18 is applied and are then held in a horizontal position to allow the lacquer to flow into a level film. The bentonite material may be made as described in U.S.A. Specification 2,317,685 by forming a gel of purified white California bentonite of particle size classified between 10 and 200 millimicrons. The film is dried and treated in a solution of a salt of a polyvalent cation such as ethylene diamine diacrylate which converts the gel into a hydrophobic compound. The bentonite is then coated with a varnish made by dissolving polyvinyl carbazole in three times its weight of toluene and enough plasticizer to ensure smooth flow during assembly. The solvent is removed during drying and the coated sheets of dielectric and electrodes are then assembled together as desired and heated under pressure so as to bond into a unit, Fig. 2. Reference 20 represents the refractory material.