baber/WOPTO huggingface dataset:
Patent GB-1453932-A (GB)
Title: Lithographic plates and their preparation
IPC: G03F7/07
Filed: 1972-12-04
Abstract: 1453932 Photographic silver halide diffusion transfer material MINNESOTA MINING & Mfg CO 28 Nov 1973 [4 Dec 1972] 55953/72 Heading G2C A light-sensitive plate capable of being converted into a lithographic printing plate comprises a support which has, or to which has been bonded a layer having, an oleophilic surface, a liquid permeable hydrophilic layer bonded to the oleophilic surface and containing physical development nuclei, and an unhardened layer of a direct-positive silver halide emulsion over the hydrophilic colloid layer, the direct-positive emulsion being one whose ability to. provide a direct-positive image is not impaired by subsequent development in a silver salt diffusion transfer developer and being one which is capable of providing a negative silver diffusion transfer image in the hydrophilic colloid layer, the hydrophilic colloid layer being capable of being made firable at least at the interface between the hydrophilic colloid layer and the oleophilic surface and disrupted from the oleophilic surface by a silver bleach bath in those areas in which a silver diffusion transfer image has been formed, so giving a negative acting lithographic printing plate. The directpositive material and image-receiving material are alternatively brought into face-to-face contact after imagewise exposure for processing in the presence of a silver salt diffusion transfer developer, in which case the direct-positive silver halide layer is not necessarily unhardened. The physical development nuclei in the hydrophilic colloid layer may be limited to immediately adjacent to the interface between the hydrophilic colloid layer and the oleophilic surface or a humectant may be dispersed in the hydrophilic layer to stabilize the plate against undue premature silver ion reduction. The hydrophilic layer may contain colloidal silica and colloidal silver. The support may be biaxially orientated polyethylene terephthalate or a thin metal sheet and the oleophilic surfaces may be provided by depositing on the support an oleophilic non-water-permeable resin. Specification 1129366 discloses a similar plate having a negative silver halide emulsion layer. The plate may be exposed to a negative microfilm image (i.e. a light image on a dark background) to give a positive printed result. This plate can be processed together with the positive-acting plate of Specification 1129366.
Patent GB-1404266-A (GB)
Title: Field effect transistor circuit
IPC: H03K19/017
Filed: 1973-12-05
Abstract: 1404266 FET driver circuits INTERNATIONAL BUSINESS MACHINES CORP 5 Dec 1973 [29 Dec 1972] 56261/73 Heading H3T An FET push-pull driver comprises first and second output FETs T4, T3 a first boot-strap circuit T5, T6, C2 coupled between an input node A and the gate node D of T4 for precharging node D to the supply voltage, a second boot-strap circuit T11, C3 coupled between the input node A and the node D for supplying additional charge to the node D to raise its voltage above the supply voltage for charging the output voltage at node C to the supply voltage and a circuit arrangement T15, T16 responsive to the increased voltage at node D to prevent the node D from discharging through the boot-strap circuit T5, T6, C2. In operation, when the input at A goes to ground level, T1 is turned off and as mode B is at the supply potential, T3 is turned on to make the output voltage at node C also zero. Nodes D, F are also at zero or earth potential. When the input at A attains its other level, T1 is turned on to drive node B to earth potential. FETs T2, T3 are turned off so that node D can be precharged to the supply potential by T5, T6, C2. Subsequently FET T12 is turned off and the increase in voltage at node F is transmitted via capacitor C3 as an additional charge to node D to raise its voltage above supply potential and FET T4 is driven harder to charge the output node C to the supply potential. FETs T15, T16 act as a clamp to turn off T5 to maintain node D at its high voltage.
Patent GB-1219540-A (GB)
Title: A key action device for a wood-wind musical instrument
Inventor: YOKOYAMA RYUICHI
IPC: G10D9/04
Filed: 1969-11-18
Abstract: 1.219,540. Wood-wind musical instruments. NIPPON GAKKI SEIZO K.K. 18 Nov., 1969 [21 Nov., 1968], No. 56453/69. Heading G5J. A key action includes a joint block made of plastics having low frictional qualities. The action comprises a key arm 6 attached at one end to a key cup 3 and swingably supported by a transverse pivot rod 10, a shaft rotatably supported on key posts 11 and connected to a finger button, a transverse arm 8 extending perpendicularly to said key arm having one end fixed to said shaft, and tetrafluoroethylene, nylon, or acrilonitrile-butadiene-styrene joint blocks 9 having a pair of swivelling bores 9a, 9b crossed perpendicularly to each other in which they are respectively journalled to the other ends of said key arm and said transverse arm. There are integrally formed at the other ends of said key arm and transverse arm small diameter portions 6a, 8a, each of which is journalled in the swivelling bore.
Patent GB-1174590-A (GB)
Title: Number Display System
IPC: G06F3/14
Filed: 1966-12-17
Abstract: 1,174,590. Display systems. SONY CORP. 17 Dec., 1966, No. 56575/66. Heading G4H. A system for displaying the contents of a register 21 (Fig. 1) includes logic circuitry for determining the position of non-significant zeros and preventing the display of them. The contents of a seven-digit circulating register 21 are fed to a detector 26 which detects the zero codes, the outputs of the detector being fed to gates A1, A2, A3 enabled so that in a first time interval all zeros above the decimal point are counted in a counter 24 (of capacity 7) and in a second time interval all digits below the decimal point and all non-zero digits above the decimal point are counted. When seven digits have been counted, the following digits are non-significant ones and a redundancy code generator 15 is then enabled by the counter to feed redundancy codes into the register. These are not decoded by the display 23 which consequently only displays the significant digits. The system may be modified so that when there are no significant digits before the decimal point the zero immediately preceding the decimal point is displayed.
Patent GB-1253398-A (GB)
Title: Improved feeding bottle device
Inventor: MICHAELS IVAN
IPC: A61J9/00
Filed: 1969-11-19
Abstract: 1,253,398. Feeding bottles. I. MICHAELS. 20 Feb., 1970 [19 Nov., 1969], No. 56674/69. Heading A5X. A device for use in an infant's feeding bottle comprises a tubular portion 1 having an integral or attached bung 2 at an upper end and a lower end 3 which is able to reach to the bottom of a feeding bottle, the bung being adapted to make an air-tight fit with the teat of the bottle and including a valve 5 for controlling the flow of liquid through the device. As shown, the valve comprises a ball 5 within a chamber 6, alternatively, the valve comprises a self-sealing slot (Figures 3A, 3B, not shown) or a flap member (16, 17, Figure 4, not shown). The device may be of a rubber or a plastics material and is provided to enable an infant to suck liquid from the bottle without inverting the bottle.
Patent GB-1380477-A (GB)
Title: Purified soya concentrate
IPC: A23L11/00
Filed: 1972-12-11
Abstract: 1380477 Treating soya ETS URY & CIE SOC EN NOM COLLECTIF and M GAY 11 Dec 1972 [14 Dec 1971] 57116/72 Heading A2Q The protein fraction of plant material, e.g. soya, which contains both carbohydrate and protein is enhanced by (a) totally or partially removing oil from the plant material, (b) suspending the deoiled plant material in an aqueous medium, (e) treating the suspension with an enzyme so as to render a substantial part of the carbohydrate metabolisable by yeast and (d) converting the metabolisable carbohydrate into protein by yeast metabolism. In a specific example, soya flour from which the oil has been removed is toasted, dispersed in dilute hydrochloric acid and treated at elevated temperature with an enzyme mixture consisting of polygalact ureinase, pectin methyl esterase, pectin transelminase, hemicellulase and invertase. Cellulase and amylase may also be used. The invertase may be #-fructosidase, After the enzyme treatment, the reaction mixture is heated to kill the enzyme, treated at elevated temperature with bakers' yeast (Saccharomyces cerevisiae), treated with ammonium phosphate, heated to kill the yeast, concentrated by evaporation and spray dried.
Patent GB-1285349-A (GB)
Title: Wire cutting device for continuous winding apparatus
IPC: B65H67/052
Filed: 1969-11-26
Abstract: 1285349 Winding and reeling; breaking FURUKAWA ELECTRIC CO Ltd 26 Nov 1969 [26 Nov 1968 13 Oct 1969] 57853/69 Heading B3E [Also in Division D1] A continuous wire winding apparatus for winding wire consecutively on to two spools, whose shafts are arranged either coaxially or parallel to one another as described in copending Application No. 53926/69, has two electrodes 6, 7 connected to a high voltage source a, b which are positioned so that while the wire is being transferred from one spool to another two of the electrodes contact the wire so as to apply a high voltage short circuit across a small portion of the wire to melt the wire or heat the wire so that it can be cut easily. The electrodes 6, 7 have pointed ends and are set on conductive flexible members 8, 9 so that if both electrodes are not contacted simultaneously, the first contacted electrode can bend to a certain extent. The current supply to the electrodes is varied by having a series of capacitors C 1 , C 2  and C 3  in parallel which can be brought into the circuit by closing switches S 1 , S 2 . The electrodes and capacitors are connected to supply via the secondary side of a transformer T which is provided with a number of connection terminals t 1 , t 2 , t 3 , t 4  so that a voltage suitable for the quality and gauge of the wire to be cut can be selected.
Patent GB-1364909-A (GB)
Title: Apparatus for measuring electrical signals
IPC: G06G7/24
Filed: 1971-12-14
Abstract: 1364909 Measuring circuit NORTRONIC A/S 14 Dec 1971 [16 Dec 1970] 57942/71 Heading G4H In a circuit for measuring an A.C. or D.C. signal, the signal is fed to a variable gain amplifier 21 whose output passes through a function circuit 22 to be compared with a D.C. reference level 1, and the difference is smoothed in a filter halved and fed back via an A/DL converter 24 and exponential circuit 23 to control the gain of the amplifier 21. In Fig. 2, the input is an A.C. signal and circuit 22 a squaring circuit to give an R.M.S. output in analogue logarithmic form, digital logarithmic form and digital linear form from the respective outputs marked ANALOGDIGITAL and LINEAR DIGITAL. Circuit 22 can instead be a rectifying circuit to give an average value of A.C. or a simple transfer circuit of the input is D.C. The non-linear circuit 23 can be placed before the A/D converter or alternatively incorporated into the gain control of the amplifier 21. The amplifier consists of a chain of operational amplifiers whose amplification is controlled by switching field effect transistors. Reference has been directed by the Comptroller to Specification 1,241,418.
Patent GB-1338593-A (GB)
Title: Continuous position sensitive system
IPC: H02P7/00
Filed: 1970-12-08
Abstract: 1338593 Measuring position electrically METRITAPE Inc 8 Dec 1970 [12 Dec 1969] 58149/70 Heading G1N [Also in Division H1] A position sensing arrangement comprises a resistive element 32 disposed along a path and overlying a conductor 30, and a means e.g. a roller 28, which presses the two into engagement thereby establishing a resistance value which is dependant on the position of the roller along the path. The roller may be attached to the gate of a valve driven by an electric motor, Fig. 1, (not shown), and the resistance and conductor may be connected as a rheostat or as a potentiometer. Instead of the roller an air jet may be used to effect engagement between the two. In a modified arrangement Fig. 6, (not shown), the resistive element is attached to the upper wall of a channel member which comprises the path. The conductor passes in S configuration around a pair of rollers disposed and movable in the channel, contact being affected by the upper roller. Where the path is extensive a number of resistive elements may be joined together and a double roller unit used to effect continuity. The arrangement may be utilized for lift control, Fig. 9, wherein coarse control is provided by the sensor shown on the left and fine control is provided by a sensor 186 on the lift which is actuated by one of a number of rollers 108. Separate windings may be provided at the ends of the sensor as "end" indicators, Fig. 11, (not shown). Means for mounting the sensor in a channel are disclosed, Fig. 12, (not shown). The channel may be aluminium, steel, polypropylene or polystyrene. A jacket of 'Mylar' (RTM) may be provided for the sensor, and a further outer jacket of steel may be provided, Fig. 20, (not shown). Alternatively the sensor may be isolatedly suspended in tension between upper and lower fixings, Fig. 13, (not shown). A servo control system is disclosed in Fig. 14 wherein the sensor is connected as a potentiometer. A voltage indicative of roller position is displayed on an indicator 256 and is also compared with a reference in comparator 254, the error being fed to a control circuitry to actuate the drive 259. The sensor is also applicable to arrangements where the speed of motor response is proportional to the error signal i.e. proportional control, Figs. 15 and 16, (not shown). A circuit arrangement suitable for long paths of travel is also disclosed, Fig. 17, (not shown), wherein the voltage is applied between tappings on a long resistive chain. A further circuit, Fig. 18, (not shown), discloses an arrangement for the similar control of a pair of independent motors i.e. two motors driving either side of a crane. A circuit also disclosed for operating an alarm in the event of a break in the wire, Fig. 19, (not shown).
Patent GB-1285778-A (GB)
Title: Improvements in and relating to methods of etching
IPC: H01L21/311
Filed: 1969-12-01
Abstract: 1285778 Etching INTERNATIONAL BUSINESS MACHINES CORP 1 Dec 1969 [15 Jan 1969] 58565/69 Heading B6J A layer of first material is etched through to a layer of underlying second material employing an etchant which reacts with the second material to provide an apparent colour change on the surface of the second material when the etching of the first material is complete. The first material may be silicon dioxide and the second material aluminium or molybdenuum. The etchant may be a buffer solution of ammonium fluoride and hydrofluoric acid containing a polyhydric alcohol e.g. glycerol, ethylene glycol or propylene glycol. The layer of first material may be masked with a photoresist.
Patent GB-1310622-A (GB)
Title: Folding caravan
IPC: B60P3/34
Filed: 1970-12-10
Abstract: 1310622 Folding caravan TRIGANO VACANCES 10 Dec 1970 [25 May 1970 31 July 1970] 58749/70 Heading B7B A folding caravan comprises a trailer body 4 having hinged lids 7 and 8, which when opened out, form a tent-like structure supported by U- shaped ribs 12, 13, 14, 15 and 16. The inner ends of rib 12 are hinged on sockets 18 slidable on the rib 13, hinged to the body 4 at 19. An arm 20 carries a pulley 21 over which a cable 27 passes, one end of the cable 27 being fixed to the body frame 1 and the other end to the rib 14. Coupling between the ribs 15 and 16 is obtained by another set of cables 31, while a cable 35 is fixed to the lid 8 and rib 16. In another embodiment, Fig. 8 (not shown) lids (7) and (8) open transversely instead of longitudinally.
Patent GB-1276879-A (GB)
Title: Process for making a corrugated paper medium
Inventor: BATA HYNEK
Filed: 1969-12-05
Abstract: 1276879 Laminated corrugated paper ESSO STANDARD SOC ANON FRANCAISE 5 Dec 1969 [16 Dec 1968] 59421/69 Heading B5N [Also in Division C3] A corrugated paper medium is made from two paper sheets by applying a coating of thermoplastic adhesive in a molten or flowing state to at least one sheet pressing into contact with the second sheet under such conditions of temperature and pressure that the adhesive is flowable, and corrugating the adhered sheets. The corrugated medium may then be adhered between outer liners by means of water-based or hot-melt adhesive. The paper sheets may each weigh 45-75 g./m.<SP>2</SP>. The thermoplastic adhesive may be applied at 80-180‹ C. in amount 25-50 g./m.<SP>2</SP>; it may comprise (i) at least 50 wt. per cent of a component having a ring-andball softening point of at least 80‹ C., e.g. cracked naphtha resin, hard bitumen, (ii) 5-30 wt. per cent plasticizer, e.g. heavy petroleum fractions, paraffin wax, and (iii) 5-30 wt. per cent tackifier, e.g. ethylene-vinyl acetate copolymer. The adhesive may be applied by roller and doctor blade, and the sheets pressed together by rollers to form the medium. Fluted rollers may be used for corrugation.
Patent GB-1326478-A (GB)
Title: Extraction of methacrylic acid from an aqueous solution thereof
IPC: C07C67/00
Filed: 1971-12-23
Abstract: 1326478 Extraction of methacrylic acid NIPPON ZEON CO Ltd 23 Dec 1971 [28 Dec 1970] 60158/71 Heading C2C Methacrylic acid is extracted from an aqueous solution thereof by a solvent comprising (A) methyl or ethyl methacrylate and (B) xylene, ethylbenzene or a mixture thereof, the amount of (B) being not more than 50% by weight of the extraction solvent. The aqueous methacrylic acid may be prepared from the catalytic vapour phase oxidation of isobutylene or methacrolein in the presence of steam. The methacrylic acid may be isolated as such, or esterified with an alcohol in the presence of a catalyst and the ester isolated. Methyl, ethyl, butyl, octyl and stearyl alcohols are mentioned and polymerization inhibitors may be present. Examples describe the extraction of methacrylic acid using methyl methacrylate and xylene or ethyl benzene.
Patent GB-1336579-A (GB)
Title: Valves
IPC: A61M31/00
Filed: 1970-12-29
Abstract: 1336579 Pressurized dispensing containers SOC LABLABO S A R L 29 Dec 1970 [14 Jan 1970] 61689/70 Heading F1R A valve for dispensing fluid under pressure has a valve body 1 with a valve member 3 and is covered by a cap 7 which has a protruberance 8 through which fluid is discharged. Cap 7 is located by a pin 10 and notch 11 and by a tube 13. An injection cannula or an injection needle is attached to the protruberance 8. The cap 7 may be formed with an integral tube or lip which extends into the valve body and locates the cap and it may only partially cover the valve body, Figs.7, 8 (not shown).
Patent GB-1288424-A (GB)
IPC: G02F1/09
Filed: 1969-12-19
Abstract: 1288424 Modulating light CESKOSLOVENSKA AKADEMIE VED 19 Dec 1969 [20 Dec 1968] 62016/69 Heading H4F A single elongate cut 3 of an electro-optic crystal having parallel end faces 12, 13 extending transversely of the length of the crystal is provided with two elongate electrodes 21, 22 embedded in opposed side walls of the crystal with their longitudinal axes transverse to the planes of faces 12, 13. As shown, one (7) of the two components 6, 7, produced when a coherent light beam 2 passes through the crystal 3 e.g. of ADP, KDP or KD*P, is modulated on application of a potential between the electrodes 21, 22, the beam 7 and electrodes 21, 22 being parallel to concentrate the field in the vicinity of the beam whereby the capacitance and the required potential difference is reduced compared with the case when the entire opposed faces of the crystal are electroded. Beams 6 and 7 may coincide in space but have different velocities. The electrodes 21, 22 may be flat strips, either inserted edgewise in coplanar fashion into the crystal, or laid flat in recesses in the crystal surfaces so that the electrode and crystal surfaces are level, Fig, 1 (not shown). In the latter case, the strip width is preferably greater than the diameter of beam 7. Alternatively one pair, or a number of pairs, of needle electrodes are inserted through the crystal e.g. along opposed arcs of a circle, so that the electrodes either lie within, or without, the beam, Fig. 6 (not shown). In a modification of the device, the crystal is a magneto-optic crystal, and the electrodes are replaced by equivalent poles of an electro-magnet.
Patent GB-635398-A (GB)
Abstract: 635,398. Treating gases by electric discharges. TRIGGS, W. W. (Patelhold Patentverwertungs- & Elektro-Holding Akt.-Ges.). Sept. 8, 1944, No. 21386/48. Divided out of 635,335. [Class 39 (i)] An arrangement for treating flowing gases or vapours by means of an arc discharge of very high frequency consists of an insulating cylinder P containing the gas at considerably below atmospheric pressure and surrounded by a coil S which together with a condenser K is tuned to form an oscillation circuit and through its electric field sets up an electrode-free discharge in the gas.
Patent GB-665549-A (GB)
Abstract: 665,549. Transfer mechanism. AKTIEBOLAGET FACIT. May 25, 1948 [June 6, 1947], No. 14137/48. Class 106 (i). In each denomination of a calculating- machine totalizer having crawling transfer mechanism, the numeral wheel pinion has tooth spaces of varying depth corresponding with teeth of varying height on the drive gear. meshing with the pinion and a member is provided to align the numeral wheels for reading, the member comprising a hook which, at the alignment operation; is moved into contact with the drive gear and pinion and actuates a toothed segment which is brought into engagement with a toothed wheel adapted to turn the numeral wheel of the next higher denomination backwards by an appropriate amount. Each numeral wheel 23 receives differential movements from an actuator (not shown), through a transmission wheel 12 on a shaft mounted to swing around a mainshaft 14, a toothed ring 13, a planet-wheel 18, a sunwheel 20, a gear 21 secured thereto and a gear 22. Movement due to tens transfer is received by a gear 17, on which the planet wheel 18 is pivoted, in mesh with a gear 29 connected by a Geneva pair 27, 26 with the gear 21 of the next lower denomination. A toothed segment 34, mounted to slide and pivot on a shaft 36 and a shaft 35 of approximately semi-circular section, and guided by a rail 39, is urged by a spring or the like into mesh with each toothed ring 13. During a calculating operation, the shaft 35 is rocked counter-clockwise through a quarter-revolution and a bar 40 withdraws those segments 34 which are to receive differential movements. The bar 40 is mounted to move with the actuators relatively to the totalizer. A second bar 43 withdraws a hooked arm 37, guided by a rail 41 and pivoted to the segment 34, from engagement between the teeth of the numeral wheel 23 of the next lower denomination than that of the ring 13 in mesh with the segment 34. At the end of the calculation, the bars 40 and 41 free the segments 34 and arms 37 and the segments are held in mesh with the rings 13 by the shaft 35 which is restored to the position shown. A rotor 46, comprising a notched disc to cooperate with each arm 37, is then rotated, the notches being of progressively greater size so that, starting with that of the lowest denomination, the arms 37 are successively forced away from the rotor shaft. The hook of each arm 37 is thus forced into a recess of the numeral wheel and the other end of the arm engages a tooth of the transmission wheel 22. The sizes of these recesses and teeth are such that the segment 34 pivoted to the arm 37 is caused to rotate, through the ring 13, the numeral wheel of the next denomination backwards by an amount corresponding to the transfer movement the higher wheel had received.