baber/WOPTO huggingface dataset:
Patent GB-1215304-A (GB)
Title: Desk reader for micro film
Inventor: SIBERT ALAN CHARLES
IPC: G03B21/11
Filed: 1967-11-28
Abstract: 1,215,304. Microfilm projection readers. GILLETT & SIBERT Ltd. Feb.28, 1969 [Nov. 28, 1967], No. 54151/67. Heading G2A. A microfilm reader projects images from a microfiche in cover glasses 12 on an orthogonally movable carrier plate 13 on to a screen 8 inclined at from 37 degrees to 45 degrees to the base 2 of the reader, the optical system comprising lamp 10, spring-loaded condenser system 11, projection lens 21 and three plane mirrors 22, 24, 25. A stylus 19 on carrier 13 is manually moved over a grid sheet on table 14 to select a given microimage.
Patent GB-1523020-A (GB)
Title: Explosive composition
IPC: C06B47/14
Filed: 1976-12-29
Abstract: 1523020 Explosive compositions AECI Ltd 29 Dec 1976 [27 Jan 1976] 54237/76 Heading C1D A slurry explosive composition comprises an inorganic oxidizing salt, water, and a sensitizing agent comprising a homogeneous mixture including a soluble fuel and an auxiliary sensitizing compound which is soluble in the fuel and/or in water. The soluble fuel may be one or more of dimethyl sulphoxide, thiourea, sugar, glycerol, formamide, dimethyl formamide, and methanol and the auxiliary sensitizing compound one or more of ethylene glycol mononitrate, methyl nitramine, and ethylene dinitramine. The density may be controlled by adding a combination of ethoxylated ammonium lauryl sulphate and higher aliphatic amines to retain entrapped gas bubbles, or by other specified means. Other ingredients referred to are ammonium nitrate, sodium nitrate, wood meal, guar gum as a thickening agent, potassium pyroantimonate and other specified cross-linking agents, acetic acid/sodium acetate buffer, aluminium powder, urea, and cellulosic flours. Specifications 1,370,923, 1,456,814, and 1,463,929 are referred to.
Patent GB-1241427-A (GB)
Title: Control panel overlay
Inventor: KIDD THOMAS LAWRENCE JR
IPC: B60Q3/04
Filed: 1968-11-15
Abstract: 1,241,427. Etching. GENERAL ELECTRIC CO. 15 Nov., 1968 [16 Feb., 1968], No. 54448/68. Heading B6J. [Also in Divisions C4 and G5] A control panel overlay comprises a thin, sheet-like metallic member 1 (e.g. Al which may be anodized) with first recessed area 8, second recessed area 7, within said first recessed area, indicia openings 2, flat transparent support member 6 seated in area 7 and electrolaminescent lamp 5 conforming to the shape of and seated in area 8. Additional recesses provide supporting recesses 4. Overlay 1 is metallic for non-flammability purposes such as required in air- and spacecraft vehicle cockpit applications and member 6, preferably zinc borosilicate glass due to its flexibility and high temperature resistance, may be tinted to control colour or brightness. In fabrication, the indicia may be mechanically engraved on one face of a metal blank to a depth less than the blank thickness and the Al may be then anodized to reduce glare and improve appearance. A chemical etch maskant is applied either to the whole blank, the areas to be etched being removed, or just to the blank except those areas to be etched, the maskant serving also to subsequently support the free or island indicia portions. Chemical etching with a sodium hydroxide etchant for example in one or more stages, exposes the indicia on the reverse side, forms recesses and possibly ribs. Maskant removal from the overlay front is hampered by epoxy cement bonding layer 6, so preferably a PVA parting layer and silicone rubber overcoat are applied to the reverse side of the etched indicia, maskant removed from the front, PVA and silicone rubber applied to same, first PVA- silicone rubber removed, and member 6 then bonded, the second PVA-silicone rubber coating being easily removed.
Patent GB-1248059-A (GB)
Title: Method and apparatus for the production of pile fabrics
IPC: D03D27/00
Filed: 1968-11-18
Abstract: 1,248,059. Tufting machines. MOHASCO INDUSTRIES Inc. 18 Nov., 1968 [16 Nov., 1967], No. 54570/68. Heading DIG. [Also in Division G3] Patterned yarns are fed to a tufting machine in zones, the yarns from one beam being used for one zone, one yarn in each zone being an index yarn which is sensed by a photocell arrangement and its position relative to a similar index yarn in a master zone checked so that speed variation in a slave zone can be effected, if necessary, or the machine stopped in extreme cases to ensure that the pattern across the whole fabric is maintained in transverse alignment. The index yarn Y (Fig. 4) comprises white and black patches along its length and two photocells 114 and 115 sense the yarn as it passes. If as shown in the circuit in Fig. 6 for example both the master zone photosensors 114b' and 115b' detect a dark zone in their index yarn and in the slave zone only one slave photosensor detects a dark zone then the slave zone yarns are going either too fast or too slow relative to the master zone yarns. The master logic decoder sends a speed evaluate pulse to the slave logic decoder and a reset attempt pulse to the reset gate when both master sensors detect a black index mark. The slave logic decoder applies a yarn slow pulse to the clutch selector and an accelerate clutch 13 engaged which connects the yarn feed with a faster moving shaft when only the first slave photosensor-114b senses an index mark when the speed evaluate pulse is applied from the master logic decoder. Similarly if only the second photosensor 115b detects the index mark the retard clutch is connected. If all four sensors are activated the average clutch is maintained or reselected. If neither of the slave photosensors detect the index mark a no-go pulse is passed to the alarm and a reset inhibit pulse to the reset gate which will maintain the clutch previously selected at that same state until corrective action is taken by the operator.
Patent GB-1402435-A (GB)
Title: Rotary compressors
IPC: F04C18/16
Filed: 1972-11-28
Abstract: 1402435 Fluid-pressure servomotor systems AIRFINA ETABS 28 Nov 1972 [1 Dec 1971 7 July 1972] 54847/72 Heading G3P [Also in Divisions F1 and F2] When the pressure in an outlet 26 of a rotary air-compressor driven by an electric motor M reaches an upper limit a pressure switch 89 opens and causes a solenoid valve 91 to shift to a position L and consequently a pressure valve 92 to assume a corresponding position L in which it vents a space between filters 20, 21 to the atmosphere. The pressure loss in said space closes a non-return valve 25 and this in turn moves a ball-valve 93 so as to transmit the pressure in the outlet 26 by way of the valve 91 to the valve 92 and hold the latter in its position L.
Patent GB-1206485-A (GB)
Title: Electric alarm apparatus
Inventor: SATO MORIHIKO
IPC: G04C21/38
Filed: 1967-12-02
Abstract: 1,206,485. Time alarm signals. TOKYO TOKEI ZEIZO K.K. Dec. 2, 1967, No.54926/67. Heading G3T. An electric alarm apperatus includes a switch operable by a timepiece mechanism for actuating an electric alarm device and an electronic time delay device for controlling the duration of actuation of said alarm device. A movable contact 10 is normally held in engagement, with a contact 11 to maintain a capacitor C charged by a battery 6, but is movable to engage a contact 9, e. g. by the mechanism of an alarm clock, so that the capacitor C discharges through a variable resistor R and the base-emitter circiut of a transistor 1 to generate a current in a relay coil 4 to close contacts a, b thereby energizing an electric alarm device 7. The duration of the alarm signal is determined by the setting of the variable resistor R which controls the time during which the capacitor C is discharged sufficently to render the relay coil 4 ineffective.
Patent GB-1242679-A (GB)
Title: Improvements relating to electric cookers
Inventor: HAWLEY ARTHUR DEREK
IPC: F24C15/00
Filed: 1967-12-02
Abstract: 1,242,679. Electric cooking stoves. SIMPLEX ELECTRIC CO. Ltd. 19 Nov., 1968 [2 Dec., 1967], No. 54932/67. Heading F4W. An electric cooker comprises a self-cleaning electric oven 10 having a door 14 which includes a passage 28 for cooling air, the air being discharged from the cooker through an aperture 43 in a hot-plate 36. The door 14 includes air inlet and outlet slots or holes 29 and 30 respectively. (For Figure see next page.)
Patent GB-1130349-A (GB)
Title: Process and apparatus for melting and solidifying refractory materials
IPC: C30B13/08
Filed: 1965-12-29
Abstract: 1,130,349. Refractory billets. L'ELECTROREFRACTAIRE. 29 Dec., 1965 [29 Dec., 1964; 9-July, 1965], No. 55109/65. Heading C1J. A refractory billet is made by feeding particulate refractory material to an induction furnace 1 having a double metal wall through which cooling fluid is passed and a movable base 7 which supports the charge in the furnace and is gradually lowered, the conditions being so controlled that a solidification front is formed at B and so maintained as the base is continuously lowered. The metal wall is preferably made of copper and has a gap extending the full height thereof and sealed by a T-sectioned plug of refractory material, a high frequency electric current being supplied to the two ends of the coil formed by the gap in the wall. The apparatus may be disposed within a chamber through which an. inert gas is circulatedto prevent any reaction between the molten refractory materials and air:
Patent GB-1292117-A (GB)
Title: Foot operated musical instruments
Inventor: ARSENEAULT JOHN PAUL
IPC: G10H1/34
Filed: 1969-11-14
Abstract: 1292117 Mechanical switches J P ARSENEAULT 14 Nov 1969 [15 Nov 1968] 55903/69 Heading H1N [Also in Division G5] A pedal switch for an electrophonic musical instrument comprises a spring metal strip 52 which carries a pedal 8 and is screwed to a bar 50. A wooden dowel 68 fixed to the pedal carries a spring contact 70 which on actuation of the pedal is deflected into contact with an L-shaped wire 74. Sponge rubber is provided on the stop bar 60 and the upper surface of the end 46 of strip 52 to silence actuation and release of the switch. Four rows of nine switches may be provided.
Patent GB-1409745-A (GB)
Title: Floatless carburettors for internal combustion engines
IPC: F02M17/00
Filed: 1972-12-04
Abstract: 1409745 Spray carburetters AUTOELEKTRONIKAG 4 Dec 1972 [4 Dec 1971] 55962/72 Heading F1B The fuel flow from a chamber 23 to the nozzle 24 is controlled by a valve 7, 8 connected through a magnetic member 13 and a spring 16 to the operating linkage 30 of the throttle valve 2. The member 13 is mounted in a coil 20 having one or more windings which may be supplied with a current to modify the position of the valve 7, 8 in response to the position of the valve 2. The current in the coil may be controlled in accordance with atmospheric pressure, humidity or temperature or engine speed or to increase the fuel valve opening for starting or acceleration. The linkage 30 between the valves 7, 8 and 2 may be adjustable. The fuel is supplied to the chamber 23 by a pump 27 and a pressure relief valve 24 operates to provide a constant pressure in the chamber, e.g. 0.15 ats. g.
Patent GB-1331973-A (GB)
Title: Valves
IPC: F16K11/04
Filed: 1970-12-01
Abstract: 1331973 Valves HYDROMETER GmbH 1 Dec 1970 [3 Dec 1969] 57031/70 Heading F2V A valve for controlling large flows from a main meter connected at 11 and for connection to a secondary meter at 12 for small flows comprises a valve disc 52 biased to closed position by springs 29 acting through levers 28 and rollers 32 co-operating with inclined surface 57 and opened by differential pressure thereacross. In operation when the differential pressure increases a cylinder 82 will move relative a fixed piston 81 to the right against a spring bias 88 and the valve disc will also move abruptly to the right when the differential pressure reaches a predetermined value, the rollers 32 running along the cylindrical surface 58 and no longer applying a bias to the disc 52. After the valve has opened the differential pressure will decrease and the cylinder 82 will move to the left and through radial pins 67 and bars 63 will move an auxiliary valve disc 64 to an open position in which flow takes place through holes 61 in the disc 52. Spring-loaded balls 74 engaging in recesses 75 lock the disc 64 in open position. Cylinder 82 abutting the disc 52 will move the latter according to the pressure differential thereacross until this drops to such a value that the disc 52 approaches seat 46 and closes off flow by means of seal 48 engaging cylindrical surface 54. At this point the spring bias 24 again acts on the disc 52 since rollers 32 are positioned on inclined surface 57. Flow still takes place through holes 61. When the pressure differential drops to the predetermined value the spring bias 29 moves the disc abruptly to the left so that seal 56 abuts seat 46 and simultaneously disc 64 abuts member 23 to move the balls 74 out of recesses 75 and allow the disc to close under the bias of weak spring 68 acting between disc 52 and radial pins 67. In modifications the spring bias applied by rollers acts on a hub of the disc 52 or is applied by radially mounted springs, the spring bias acting on cylinder 82 is disposed within the cylinder, and the auxiliary valve disc is dispensed with, the final closing of the valve being determined by flow between co-operating flanges on the housing and the cylindrical surface of the disc 52.
Patent GB-1101730-A (GB)
Title: Transmitter circuit for amplifying at least two carrier oscillations which are modulated with signals different from one another
IPC: H01J25/12
Filed: 1966-12-21
Abstract: 1,101,730. Multiplex radio signalling. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 21 Dec., 1966 [27 Dec., 1965], No. 57137/66. Heading H4L. A variation of the multiplex transmitting system described in Specification 1,048,402 wherein, using a five cavity klystron and a much reduced sound carrier input at 21-the video carrier input being at 20-the high power video carrier is extracted from cavity 4 and the low power sound carrier is extracted from a later cavity, e.g. cavity 5. The early extraction of the high power carrier, reduces the chances of intermodulation distorton on the low power carrier in cavity 5.
Patent GB-1248770-A (GB)
Title: Improvements in and relating to thermostabilized linear polyesters and copolyesters
IPC: C08K5/49
Filed: 1968-12-03
Abstract: 1,248,770. Stabilized linear polyesters. KALLE A.G. 3 Dec., 1968 [4 Dec., 1967], No. 57354/68. Heading C3R. Linear poly- or copolyesters of the diol/ diester type are thermostabilized by preparing them in the presence of at least one phosphorus compound of the general formula where (a) and (b) are 1 or 0, Y is oxygen or sulphur and X is a straight or branched-chain or cyclic saturated hydrocarbon residue with up to 18 carbon atoms, or an unsubstituted or aliphatically substituted phenyl group. The compound is preferably incorporated into the polyester towards the end of the re-esterification reaction in solution in a glycol or as such and in an amount which is 0À001 to 5% by weight, based on the weight of diester used to form the polyester. In the examples, polyethylene terephthalate is thermostabilized with (1a), (4) tributylphosphine, (1b) tri-n-octyl-phosphine, (1c) (5) phenyl-dibutyl phosphine and (2), (3) phenyldiphenoxyphosphine.
Patent GB-1148086-A (GB)
Title: Fabric and method of knitting same
Inventor: LUCKHURST STANLEY DENNIS
IPC: D04B1/00
Filed: 1966-12-23
Abstract: 1,148,086. Knitting. MONSANTO TEXTILES Ltd: 19 Dec., 1967 [23 Dec., 1966], No. 57648/66. Headings D1C and D1K. An insulating fabric is formed by knitting a two ply fabric on a circular or flat machine and by laying yarns or rovings in the fabric between the two plies. The fabric may be produced on a cylinder-and-dial machine in which lengths consisting of a welt rib portion and the two ply fabric are knitted in string formation separated by draw threads. The insulating fabric is formed by knitting one ply on the needles of one bed and the other ply on the needles of the other bed and by laying the yarns or rovings in between the plies by feeding them to the backs of the needles. The two plies are secured together by knitting the same yarn simultaneously by selected needles of both beds and the selection can be made to achieve a quilting effect in the fabric. Synthetic yarns such as textured stretch continuous filament nylon may be used for the plies and the laid in yarn or roving may comprise a crimped and bulked acrylic fibre material. Alternatively a natural yarn or roving may be employed for the plies and laid in yarns or rovings.
Patent GB-1360509-A (GB)
Title: Telephone intercommunication system
IPC: H04Q3/52
Filed: 1971-10-28
Abstract: 1360509 Automatic exchange systems INTERNATIONAL STANDARD ELECTRIC CORP 28 Oct 1971 [2 Nov 1970] 57668/72 Divided out of 1360508 Heading H4K The Specification is identical to that of the parent Specification 1,360,508. The claims relate to the nature of the crosspoint matrix.
Patent GB-1416400-A (GB)
Title: Parking and emergency brake control valves of road vehicle
IPC: B60T13/26
Filed: 1973-12-13
Abstract: 1416400 Spring applied-fluid pressure released brakes; valves SO DE RE P 13 Dec 1973 [29 Dec 1972] 57938/73 Headings F2F and F2V A parking or emergency control valve 1 for a spring-applied-fluid pressure released braking system comprises a differential valve member 8 provided with passages 15 of small cross-sectional area compared with the seat surface area so that if there is leakage on the air supply side of the valve the exhaust of air from the brake cylinder is retarded to prevent sudden fierce brake application. Compressed air supplied via a distributer 3 and the valve 1 releases the brake by opposing the springs 2b and valve member 8 is then urged to its seated position. For parking the distributer 3 is moved so that compressed air acts on a piston 12 in cylinder 13 to open valve member 8 and allow brake application. A modified form of valve member 8a, Fig. 3, has passages 18 closed by an annulus 19 under the influence of a dished spring 20, allowing a fast initial movement followed by gradual brake application.
Patent GB-1268327-A (GB)
Title: Improvements in or relating to frequency shift signal transmitters
Inventor: SALTZBERG BURTON R
IPC: H04L27/10
Filed: 1970-12-10
Abstract: 1,268,327. Digital transmission systems; active filters. WESTERN ELECTRIC CO. Inc. 10 Dec., 1970 [11 Dec., 1969], No. 58589/70. Headings H3U and H4P. A frequency shift transmitter includes a digital filter arranged to operate on the borderline of stability so that it simulates an oscillatory circuit. The filter has a feed-back path in to which one or another multiplier is placed by the digital input signal to cause oscillation at one or the other shift frequency. The transmitter circuit 103 is time-shared among n data sources 101. The binary signals from the sources are multiplexed by scanner 102 which samples each bit several times. Bit samples of one state enable gate 110 and of the other state gate 111, so inserting multiplier 115 or 116 in the filter's feed-back path. The filter operates on 10-bit numbers representing the instantaneous amplitude of an A.C. signal, the numbers relevant to the n data sources circulating in multiplex in the filter. The filter's output is distributed to digital-analogue converters 125 to provide, after filtering, frequency shift signals on lines 105. The filter includes a circuit 121, Fig. 2 (not shown), which inserts numbers in to the filter during starting and subsequently provides amplitude stabilization of the filter output by checking the amplitude and appropriately modifying the number fed back by the multipliers.
Patent GB-1212439-A (GB)
Title: Adjustable partition for combination grain and fertilizer hopper
IPC: A01C15/00
Filed: 1968-12-13
Abstract: 1,212,439. Seed drilling machine. DEERE & CO. 13 Dec., 1968 [15 Dec., 1967], No. 59456/68. Heading A1D. [Also in Division B8] A hopper for a seed drilling machine is provided with two compartments 1 and 2 respectively for grain and fertilizer, the compartments being separated by partition 44 which is pivoted top and bottom at 50 and 70, is adjustable in length at 62 and is formed into two portions pivotable at 84 and positionable by rods 86 which engage with holes 92 formed in walls 90 so that the partition can take either of the positions shown whereby the capacities of the two compartments are changed. Partition 44 may be folded back and secured to wall 28 to make the two compartments into one large one.
Patent GB-1261136-A (GB)
Title: Process for the production of chip board
IPC: B27N3/02
Filed: 1969-12-05
Abstract: 1,261,136. Chip board. A. K. HERR, [trading as FASERKUNSTSTOFF-TECHNIK A.K. HERR]. 5 Dec., 1969 [5 Dec., 1968], No. 59564/69. Heading C3N. A process for the production of chip boards having high flame resistance comprises the steps of adding to wood chips a mixture of a fibrous material and pulverulent flame-inhibiting chemicals and then forming the chip boards in known manner. The effect of the association of the fibrous material with the pulverulent flame-inhibiting chemical is to assist in the dispersion of the chemical throughout the finished chip board. The fibrous material may be textile fibres, sawdust, waste materials from the paper industry, grinding dust obtained from chip boards, vegetable fibres, asbestos, glass fibres, and fibre materials obtained by the use of microorganisms, e.g. fungi. The fibre material may have elastic properties and the separate fibres of the fibre material may be ramified, fibrillated or roughened to improve the adhesion thereto of the pulverulent flameinhibiting chemical. To the same end the fibre material may have an electrostatic charge of opposite polarity to the pulverulent flameinhibiting chemical or may enter into an ionexchange reaction with the chemical. The flame-inhibiting chemical may be any conventionally used and of these boric acid is used specifically. Mineral -fillers such as kaolins, talcum and powdered chalk may be included. In a specific example a three-layer chip board is produced in which the two surface layers together make up to 40 parts by weight and the middle layer 60 parts by weight of the total weight. The surface layers, in the compressed state, comprised, by weight, 75À0 parts wood chips, 25À0 parts of a dry fibre mixture consisting of 60% of a dried and ground spilt-over pulp and 40% powdered boric acid, 12À0 parts dry urea resin and 8À0 parts water whilst the middle layer comprised 75À0 parts wood chips, 25À0 parts dry fibre mixture, as above, 8À6 parts dry urea resin and 8À0 parts water. The board was produced by mixing the wood chips and fibre mixture and thereafter spraying in the mica resin as a 48% solution. The finished board has a weight of about 630 kg./m<SP>3</SP>, a bending strength of 215 kp./cm<SP>2</SP>, swelling index of 3À1% and a transverse tensile strength of 3À4 kp./cm<SP>2</SP>.