baber/WOPTO huggingface dataset:
Patent GB-1486917-A (GB)
Title: Process for the manufacture of a cellulose acetate membrane
IPC: C08J7/02
Filed: 1974-12-10
Abstract: 1486917 Cellulose membranes HOECHST AG 10 Dec 1974 [10 Dec 1973] 53322/74 Heading B5B A sheet of cellulose acetate is treated with an aqueous solution of a di- or polyhydric alcohol containing 2-4C for 2-10 minutes at 50-110 C. then drying the sheet at a temperature not exceeding 50 C. The aqueous solution preferably contains 20-35% alcohol, preferably glycerol.
Patent GB-1501950-A (GB)
Title: Method of manufacturing a reverse buckling rupture disc
IPC: B21D26/021
Filed: 1975-12-31
Abstract: 1501950 Bursting discs BLACK SIVALLS & BRYSON Inc 31 Dec 1975 [2 Jan 1975] 53358/75 Heading F1D [Also in Division B3] A method of manufacturing a scored reverse buckling bursting disc 16 comprises forming a concave-convex dome 20 in a sheet of metal, annealing forming scores 24, reforming the dome to increase its crown height and annealing a second time. A sheet of metal is taken and a number of discs formed by applying fluid-pressure e.g. airpressure, the discs are then annealed. The scores 24 are formed by blades 36 on blade member 34, Fig. 4, with the dome 20 on a concave depression 32 in an anvil 30, to form a required score pattern. One or more of the discs are subjected to increasing fluid-pressure on their concave side until the dome portion ruptures to determine the tension rupture pressure; the remaining discs are subject to fluidpressure on their concave side of from 85% to 95% of the tension rupture pressure to increase the crown height and the discs are annealed again. After this one or more of the discs are subject to increasing fluid-pressure on their convex side until the disc reverses and ruptures, thereby determining the reversal rupture pressure of the discs. The discs may be of nickel, stainless steel, nickel-copper alloys or nickel-chromium alloys and typical annealing temperatures and times are given. In use the disc is situated between flanges 12, 14, with the former sealingly connected with a fluid-pressure vessel or system to be protected so that the fluid -pressure of the vessel or system is exerted on the convex side of disc 16. Flange 14 can be connected to a system for disposing of the fluids or to atmosphere. If the fluid-pressure in the system exceeds a predetermined value, the disc reverses and bursts open along the scores 24, as in Fig. 3.
Patent GB-1153358-A (GB)
Title: Device for Connecting Up a High-Capacity Document-Reading and Processing Machine to a Computer.
IPC: G06K13/06
Filed: 1967-11-23
Abstract: 1,153,358. Statistical apparatus. TELEF U N K E N PATENTVERWERTUNGS G.m.b.H. 23 Nov., 1967 [23 Nov., 1966], No. 53387/67. Heading G4M. A document reader 2 is connected to a computer 1 through a first switching device 3 which passes data to the computer over a first input/ output channel 11, and a second switching device 7 is connected to a second input/output channel 12 of the computer and to means for initiating a request for the issue of a control word SW from the computer to a register E1 for each document, when that document arrives at a predetermined point on the conveying path, one of the channels 11, 12 also being used for controlling the document feed device 4, 21. A document detector 8 or a delay device in control device 3 may be used to initiate issue of the control word.
Patent GB-1376613-A (GB)
Title: Fluid diaphragm modulator
IPC: F15C3/04
Filed: 1971-11-18
Abstract: 1376613 Fluid-pressure servomotor systems JOHNSON SERVICE CO 18 Nov 1971 [18 Nov 1970] 53682/71 Heading G3P In a diaphragm amplifier, the input signal is applied through a duct 11 to a space 19 while the output is taken from ducts 4, 5 from a space 25 between two orifices 24, 29 arranged in series between a fluid-pressure supply port 31 land an exhaust chamber 22. The pressure in the space 25 may thus be varied above and below that in the chamber 22. A flat spring 15 is clamped at 14 and 16 in overlying relationship with the diaphragm 10 and has a central square portion to cooperate with the orifice 24 supported from its periphery by four L-shaped legs. If the device is connected as shown in Fig.6, the output pressure at port 52 is equal to the signal input pressure at port 39.
Patent GB-1509830-A (GB)
Title: Device for measuring ac in a high tension line
IPC: G01R15/22
Filed: 1976-12-23
Abstract: 1509830 Measuring current COMPAGNIE GENERALE D'ELECTRICITE SA 23 Dec 1976 [14 Jan 1976 31 March 1976] 53783/76 Heading G1U Two light guides F1, F2, Fig. 1, connected differentially at a low potential point to eliminate common mode drift, couple current from a high potential line 2 via two LED's Dl, D2, two photoresistors R1, R2, and a differential amplifier 14, to a meter 16.
Patent GB-1380555-A (GB)
Title: Process for the preparation of 2,3,5-trimethylhydroquinone
IPC: C07C27/00
Filed: 1973-11-22
Abstract: 1380555 Preparation of 2,3,5-trimethyl hydroquinone RHONE-POULENC SA 22 Nov 1973 [23 Nov 1972] 54275/73 Heading C2C 2,3,5-Trimethylhydroquinone is prepared by oxidizing pseudoquinone with an organic peracid (e.g. peracetic acid) to form an oxidation product comprising 2,3,5-trimethylbenzoquinone, water and the carboxylic acid corresponding to the organic peracid, the carboxylic acid is removed from the oxidation product in the form of an aqueous solution in the water present and the 2,3,5-trimethyl hydroquinone dissolved in pseudo-cumene is catalytically hydrogenated to give 2,3,5-trimethyl hydroquinone. The peracid may be formed in situ.
Patent GB-1308348-A (GB)
Title: Protective shields
IPC: F41H5/04
Filed: 1970-11-17
Abstract: 1308348 Laminates HOESCH AG 17 Nov 1970 [18 Dec 1969] 54640/60 Heading B5N [Also in Division F3] A protective shield comprises perforated steel sheets covered with a rubber layer, the perforations being four holes 1, Fig. 1, and a fifth hole 3, the latter being the same size as the holes 1. The holes 1 are positioned at the corners of an imaginary quadrilateral such as a rectangle and the hole 3 is positioned at the point of intersection of diagonals 2 which pass through the centres of the holes 1. The distance a is two thirds that of the distance b and the distance from a hole 5 to an edge 8 of a sheet 4 is half of the distance a. In a part 7, Fig. 3, of a protective shield used for example for the track guard of tracked armoured vehicles, sheets 4 are embedded in rubber 6 and are connected together thereby as shown in Fig. 4.
Patent GB-1156790-A (GB)
Title: Fuel Injection Systems for Internal Combustion Engines.
IPC: F02M69/18
Filed: 1965-12-24
Abstract: 1,156,790. Spray carburetters, PETROL INJECTION Ltd. and H.E. JACKSON. Dec. 21, 1966 [Dec. 24, 1965], No.54793/65. Heading F1B. Fuel from an engine driven pump 10 flows to injectors 7, through a passage 1A at speeds above idling and through passage 1B at idling speeds. The fuel supply pressure increases with engine speed and, by acting on a plunger 25, closes a valve 22 in the passage 1B at speeds above idling. The fuel flow in passage 1A is controlled by a valve 20 operated in accordance with engine throttle position or intake manifold suction. The valve 20 comprises a rotatable valve 44, Fig. 3, with metering orifice 46 actuated by a cam 59 operated from the throttle linkage. Passages 1A, 1B, lead to a chamber 3 connected via passages 5 to needle type injectors 7 and excess fuel escapes via non-return valves 8A, 8B, into a return passage 9 containing a pressure-maintaining valve 16 and a vapour release means 15. In a modification Fig.4 passages 1A, 1B contain diaphragm valves 74, 75, of which valve 75 opens at a lower pressure than valve 74. At speeds above idling the back pressure causes valve 75 to close.
Patent GB-1217629-A (GB)
Title: Method of making a flame portion for a gas-fired torch
Inventor: SEE ROBERT O
IPC: F23D14/54
Filed: 1969-11-11
Abstract: 1,217,629. Making burners. AIR REDUCTION CO. Inc. 11 Nov., 1969 [12 Nov., 1968], No. 55099/69. Heading B3A. [Also in Divisions F3-F4] A method of making the burner tip of a gasfuelled torch (see Divisions F3-F4) comprises forming a cylindrical shell 54 with a hole therethrough and a tubular insert member 68 to fit inside the hole, the members being formed by continuous extrusion or impact extrusion, from copper or brass, forming at least one axial groove 58 in at least one of the mating surfaces of the members, placing the insert member 68 in the hole thus forming a substantially enclosed gas passage 50 by means of the or each groove 58, and forming the burner tip by swaging the combined members, thus restricting the or each gas passage at the flame end and making it gastight along at least a portion of its length. To assist in forming the gas passages 58 tapered mandrels are inserted in the gas passages from the upstream end during swaging and then withdrawn.
Patent GB-1143470-A (GB)
Title: Water-going craft operable with its hull above the water surface
IPC: B63B1/28
Filed: 1966-12-08
Abstract: 1,143,470. Super-planing craft. K. C. RIPLEY. 8 Dec., 1966 [14 Dec., 1965], No. 55117/66. Headings B7A and B7V. A water-going craft 13 operable with its hull above the water surface comprises a hull 30, a propulsion system within the hull for moving the craft forward, elongated wingless streamlined struts 10 mounted by brackets 32 to the hull, each strut having a cambered base 12 which develops a positive hydraulic pressure under the base 12 to develop lift when the strut is moving through water with the cambered base 12 below the surface. In the embodiment shown, the strut assembly 35 comprises inboard and outboard struts 10 having small cambered fins 38 secured between them. The struts impart to the craft a major portion of the vertical force necessary to lift the hull above the water surface.
Patent GB-1454384-A (GB)
Title: Phosphonoalkyl derivatives of cyclic ureides
IPC: D06M13/447
Filed: 1973-11-29
Abstract: 1454384 Flame retardant plastics CIBAGEIGY AG 29 Nov 1973 [12 Dec 1972] 55503/73 Heading C3B [Also in Division C2] Plastics are rendered flame-retardant by incorporating therein a compound of the general Formula (I) or (I<SP>1</SP>) wherein Z is a divalent radical which completes a 5- or 6-membered heterocyclic ring, A is C 1 -C 12  alkylene which may be interrupted by one or more O atoms and R 1  and R 2  each independently denote an alkyl or alkenyl radical which may be substituted, e.g. by halogen, or together denote C 2 -C 5  alkylene. The compounds can be incorporated directly into the plastics material or can be added to starting materials used to form the plastics. They may, e.g. be added to epoxide resin/curing agent mixtures. In an example a triglycidyl compound prepared from 1,3 - bis(5,5 - dimethyl - hydantoinyl- 3)-propan-2-ol having an epoxide content of 6À1 epoxide equivalents/kg and 3-(dimethoxyphosphonoethyl) - 5,5 - dimethyl hydantoin are stirred at 156-159 C. and reaction continued to form a resin having an epoxide content of 2.26 epoxide equivalents/kg and the product is then stirred with hexahydrophthalic anhydride at 120 C. and poured into aluminium moulds, curing taking place in 2 hours at 120 C. and 16 hours at 150 C.
Patent GB-1279085-A (GB)
Title: Ignition coils
Inventor: FRY WILLIAM LAWRENCE
IPC: H01F38/12
Filed: 1968-11-22
Abstract: 1279085 Transformers JOSEPH LUCAS (INDUSTRIES) Ltd 14 Oct 1969 [22 Nov 1968] 55521/68 Heading H1T An induction coil core 14, connected at one end to a high tension terminal 18, is supported in a recess within a transparent insulating member 13. This insulation, which may be of crown-glass, shows up any defects within it such that faulty components do not require assembly and testing, before rejection.
Patent GB-1451031-A (GB)
Title: Packaging materials
IPC: C09D121/02
Filed: 1974-12-27
Abstract: 1451031 Latex coated packaging materials ORCHARD CORP OF AMERICA 27 Dec 1974 [22 Feb 1974] 55892/74 Heading B2E [Also in Division C3] Flexible substrates are coated with a latex to which has been added a nitrite and a compound containing the group -CX-NH 2  where X represents oxygen or imino. The latex can be of natural or synthetic rubber and the nitrite can be organic or inorganic. The other compound can be urea, propionamide, allyl urea, butyl urea, dimethyl urea, propyl carbamate, butyramide, stearamide, acetamide or guanidine. The substrate can be paper, polyethylene, polypropylene, polybutylene, polycarbonate, polystyrene, polymethyl methacrylate, polyethylene terephthalate and aluminium. A tie or primer coating may also be applied and may consist of polyvinyl acetate, polyester, polyamide, polyurethane, acrylic polymer or urea-formaldehyde resin.
Patent GB-1149910-A (GB)
Title: Improvements in or relating to acoustic signal generators
IPC: G10K9/15
Filed: 1966-12-14
Abstract: 1,149,910. Sound generator. SIEMENS A.G. 14 Dec., 1966 [15 Dec., 1965], No. 55951/66. Heading G5J. A sound-producing device comprises a vibrating armature 1, with return spring 1a, energized by electromagnet 3a to beat upon limb 3 of core 4. The sound volume is controlled by varying the impact by spring 2 which is adjustable by means of screw 2a. The control spring may operate in compression as shown or in tension (Fig. 1, not shown) or may be a leafspring (Fig. 3, not shown) but its characteristic must be such that the armature 1 will hit the core limb 3 at any spring setting.
Patent GB-1375828-A (GB)
IPC: G01L3/20
Filed: 1970-11-27
Abstract: 1375828 Dynamometer REDMAN HEENAN FROUDE Ltd N McLEAN D B LEWIS and R J L McLAREN 18 Nov 1971 [27 Nov 1970] 56410/70 Heading G1W [Also in Division G3] The speed, acceleration or torque of a hydrobinetic device such as a dynamometer, brake or torque converter is retroactively controlled by adjusting a valve in the inlet or outlet of the device. The valve passage construction is such that the displacement of a valve element is linearly related to the torque developed by the device. In the system shown, a dynamometer 1 has an inlet 2 and outlet 3, each provided with a butterfly-type valve 4 pressure-balanced on a shaft 5. The valve element 4 may be in the form of a plate, ball, disc or other suitable shape, and the passage 2 is correspondingly shaped to give the required displacement - torque relationship, Figs. 1 and 2 (not shown). Control may be effected through either the inlet or outlet valve construction, or both simultaneously. In operation, a device 9, which may be a tachogenerator, frequency pickup or torque transducer, produces a voltage corresponding to a parameter to be controlled. This voltage is compared in a variable gain amplifier 12 with a desired value represented by a potentiometer setting 11. The resulting error signal is fed to a servosystem 14 including an actuator 8 which drives the valve shaft 5. The actuator 8 may comprise a printed circuit, linear or other electric motor, or a servo-operated hydraulic or pneumatic device, and also drives a potentiometer 17 to provide position feedback on a line 18, and a transducer 20 which supplies a signal on line 19 indicative of the acceleration of the shaft 5. The actuator 8 is driven by a control amplifier 15 through an output stage 16. The system may form part of an engine test plant, and the setting of potentiometer 11 may be constant or varied in accordance with a program. Sequence control involving combinations of speed, acceleration and torque may be employed.
Patent GB-1448259-A (GB)
Title: Method of and apparatus for treating plastic film
IPC: B05C3/12
Filed: 1973-12-06
Abstract: 1448259 Treating polymeric film FOSTER GRANT CI INC 6 Dec 1973 56473/73 Heading D1L Thermoplastic film 16, preferably one suitable for the manufacture of polarized lenses, is passed through a dye solution 24, then through a dye removing and rinsing assembly 56 or 56a, mounted at the end of the dye tank. The dye removing and rinsing assembly comprises squeeze rollers 58, 62 into the exit nip of which rinsing liquid 101, 101a, and 101b is permitted to flow axially along each or the roll and transversely over the film. Idler rollers 72 and 74 prevent rinsing liquid from flowing back into the dye bath. The degree of dyeing of the film is monitored at a point downstream from the squeeze rolls using a light beam and a photoelectric cell and in response to indicated variations in the transparency of the film the time of immersion in the bath is controlled through a relay control unit 154.
Patent GB-1272855-A (GB)
Title: Rotary positive-displacement machines
IPC: F01C21/08
Filed: 1969-11-20
Abstract: 1,272,855. Rotary positive-displacement machines. ALFRED TEVES G.m.b.H. Nov.20, 1969 [Nov. 28, 1968; Jan. 17, 1969], No.56797/69. Heading F1F. In a pump, or motor, of the outwardly-sliding vane type an annular recess 2 in the rotor 1 accommodates springs 8 to urge the vanes 5 into contact with a cam ring 10, each spring being supported by a pin 7. The vanes may also be pressure-loaded through chambers 6. Alternatively, the springs are seated in recesses 23 in the periphery of the rotor. (For Figures see next page)
Patent GB-1403589-A (GB)
Title: Recording device
IPC: G06Q10/10
Filed: 1972-12-08
Abstract: 1403589 Control of printers CASIO COMPUTER CO Ltd 8 Dec 1972 [8 Dec 1971] 56797/72 Heading G4H A printer incorporates means for moving a sheet of paper 12 to a required printing position 15 and for storing information relating to previously printed data and its position on the sheet.  When paper 12 is inserted its presence is detected at 16A, 16B and a punched identifying code thereon is detected at 18 and fed to a register 23 which also receives data entered on a keyboard 22. Detector 16 operates a control 20 whose first output A opens gate 24 so that the code in 23 can cause a selector 31 to address stores 28, 32 respectively containing data already printed and the location of the last printed line. The second output B from 20 opens gate 33 so that the contents of 32 can preset a counter 34: a stepping motor 17 then alters the position of sheet 12 while 34 is being counted up or down. The third output C sets flip-flop 26 to open gate 25 and feed the data in 23 to a processor 27, which uses this data and the data in 28 to generate fresh data which is fed to a printer driver 29. Processor 27 may cause sheet 12 to be moved to a new print line if required during printing, and it also updates the information in stores 28, 32. The sheet of paper may be a ledger, and the printer may be used with automatic bowling score processing devices.
Patent GB-1285109-A (GB)
Title: Filament shaft
Inventor: LENK ERICH
IPC: D01D5/092
Filed: 1970-12-03
Abstract: 1285109 Melt spinning apparatus BARMAG BARMER MASCHINENFABRIK AG 3 Dec 1970 [16 Dec 1969] 57458/70 Heading B5B Melt spinning apparatus comprises a filament shaft for more than two melt spun filaments or filament bundles separated from one another by partitions wherein the width of the shaft decreases in the direction of travel of the filaments and the partitions are adjustably and/or deformably fixed in the filament shaft in the direction of the shaft width. Preferably the partitions are fixed at their upper and/or lower edges so as to be adjustable in the direction of filament travel and/or the direction of shaft width. In preferred apparatus (Fig. 1) filament bundles 11 are extruded from spinnerets 1 and travel to applicator roll 10 and wind-up through a compartment of the filament shaft 3, formed by shaft walls 2, 3<SP>1</SP> and 3<SP>11</SP> and partitions divided into upper and lower sections 4 and 5, and guide means 9. Partitions 4 and 5 are fixed at their upper and lower edges 4<SP>1</SP>, 4<SP>11</SP>, 5<SP>1</SP> and 511 to adjusting means 6, 7 and 8 so that they may be adjusted, as indicated by arrows, in the direction of filament travel and/or shaft width. The lower portions 5, which are formed of a deformable, resilient one-piece panel (e.g. of aluminium) preferably with a stiffness of flexure which is greater near the upper and lower edges 5<SP>1</SP>, 5<SP>11</SP>, are straight in this embodiment but may be preformed to any desired curvature so as to more closely follow the sag in the filament bundle at the lower end of the spinning shaft (Fig. 2, not shown). Where the shaft is used with an even number of spinnerets the centre partition 12 may be a rigid one-piece plate. Fig. 3 (not shown) is a plan view in the direction X of Fig. 1 and illustrates the attachment of panels 4, 5 to adjustable means 6, 7 and 8.
Patent GB-1421179-A (GB)
Title: Duplication method and means
IPC: B41M1/42
Filed: 1972-12-14
Abstract: 1421179 Electrostatic printing LAMSON INDUSTRIES Ltd 14 Dec 1972 [24 Dec 1971]  57655/72 Heading G2H In electrostatic printing the original is formed by typing on the front of a carbon backed sheet transferring the 'carbon' to a contacting receptor sheet. Depending on whether the conductivity of the 'carbon' is greater or less that the sheet the receptor sheet bearing the image or the 'carbon' backer sheet minus the transferred carbon is placed in superposed relationship with a dielectric recording member and subjected to an electric field. The result is a dielectric recording member bearing an electrostatic image which is developed in the usual way.
Patent GB-1151090-A (GB)
Title: A Heavy Duty Shoe or Boot.
Inventor: LUDWIG HERBERT
IPC: A43B13/12
Filed: 1966-12-23
Abstract: 1,151,090. Boots &c. DESMA-WERKE G.m.b.H. 23 Dec., 1966, No. 57767/66. Heading A3B. A heavy duty shoe or boot e.g. safety footwear or a ski boot, having a multi-part sole secured to the upper of the shoe or boot comprises nitrile rubber tread means secured to an intermediate sole 12 which consists of plastics material e.g. polyvinyl chloride, which has been injection moulded on to the upper. In a first embodiment (Fig. 1) the tread layer 13, 16 of nitrile rubber extends over the whole of the sole and heel, the end 13a of the sole being embedded in the heel. The layers 13, 16 are bonded to the intermediate sole by adhesive 14. In a second embodiment (Fig. 2) e.g. a ski boot, the nitrile rubber 17 extends only over heavily loaded areas e.g. the toe and heel.
Patent GB-1109379-A (GB)
Title: Deep hole drill
IPC: B23B51/04
Filed: 1966-12-28
Abstract: 1,109,379. Bearings. BROWN BOVERI & CO. Ltd. 28 Dec., 1966 [29 Dec., 1965], No. 57872/66. Heading F2A. [Also in Division B3] A deep hole drill comprises a hollow shank 3, a boring tool 4 screwed into the shank at 5, and an axial passage 7 for supplying pressurized oil to radial passages 6 and 7a. Oil is supplied through passages 6 to a portion 3a of the shank to provide an oil-pressure bearing. Spring- urged balls 12 are provided in valve seats 10, so that when each of the balls passes through the workpiece the respective passage is closed by the ball to prevent escape of oil. Oil also passes through passages 7a so as to cool and flush the tool 4.
Patent GB-1291780-A (GB)
Title: Double arm-sling jacket
Inventor: BECKETT ORVAL DWIGHT
IPC: A61F5/37
Filed: 1970-12-29
Abstract: 1291780 Sling jacket O D BECKETT 29 Dec 1970 61559/70 Heading A5R A double arm-sling jacket comprises a flexible back panel 13 with a pair of flexible flaps 70, 71 extending laterally from the sides 16, 17 of the panel for attachment in use to a pair of flexible wing panels 31, 32 mounted at the top of the back panel, each wing panel being provided with cooperating fastening members so that it may be formed into a pouch for the accommodation of a forearm. The wing panels are attached to a shoulder yoke 21 so that the adjacent inner edges of the wing panels and yoke define an opening for the neck. The jacket is applied to the patient by placing the back panel 13 at his back, draping the wing panels 31 and 32 over each shoulder and looping the end portion 44 of the wing panels under the patients arms and connecting hooks 46, 47 on the end portion to corresponding eyes 48, 49, 50, 51 on the inside of each wing panel. The provision of alternative pairs of eyes 48, 50 allows the pouch for the arm to be adjusted. The flexible flaps 70, 71 are attached to the front of each wing panel by buttons, and provide an abutment and support for the elbow and upper arm. An elastic belt 18 is situated at the base of the back panel.