baber/WOPTO huggingface dataset:
Patent GB-839108-A (GB)
Title: Process for making oriented films
IPC: B29C71/02
Filed: 1958-09-26
Abstract: Oriented films having balanced properties are made from unoriented films of orientable crystallizable linear organic polymers by successively stretching the unoriented films laterally and longitudinally at 70-120 DEG  C. while preventing significant contraction in the other direction, subjecting the oriented film to a modifying treatment at 20-150 DEG  C. for 0.01-5 mins. while maintaining tension in both directions so that the film remains substantially unaltered in dimensions, and heat-setting the resulting film at 150-230 DEG  C. under conditions such that no substantial shrinkage occurs.  The film may be made of a polyester, preferably polyethylene terephthalate, and longitudinal stretching preferably precedes lateral stretching. Preferred conditions for the modifying treatment comprise 0.01-3 mins. at 70-95 DEG  C.  After heat-setting, the film may be heat-relaxed at 90-150 DEG  C. while under slight tension.  A water-permeable colloid layer (e.g. gelatin) may be applied to the heat-set film, preferably prior to heat-relaxing.  The process may be applied to films having a thin layer of a hydrophobic polymer (e.g. a vinylidene chloride copolymer) on one or both surfaces. Both base film and copolymer layer (if present) may be tinted (e.g. for use as X-ray photographic film base) and may contain an autostatic material.  Specifications 578,079, 603,827, 718,422, 746,386, 772,148, 779,645, 786,176, and U.S.A. Specification 2,071,250 are referred to.
Patent GB-344871-A (GB)
Title: Screw propeller or turbine for water, air or gas
IPC: B63H1/16
Filed: 1929-10-11
Abstract: 344,871. Screw propellers. HOLM. STRÍM, A., 14, Rue Bel Respiro, Monte Carlo, Monaco. Oct. 11, 1929, No. 30884. [Class 114.] A screw propeller having a streamline boss has its blades projecting therefrom at the greatest diameter which is at least <1>/3 of the diameter of the complete propeller. The streamline boss is constituted by a forward nose portion c, intermediate portion b and an after portion d. The after portion is stationary and supported from a depending casing, whilst the forward portion is adapted to be rotated by gears and carries the blades e. Around the blades may be fixed a ring or casing f the section of which is of hydrofoil shape. The blades of the propeller may be formed of overlapping plates h either hollow or laminated but so arranged as to provide a ribbed or scale-like exterior surface. In the case of hollow blades communication may be made between the inside and outside by means of small holes i. In a modification the encircling casing f instead of being fixed to the blades is fixed to the vessel or adjustably mounted thereon to provide a steering effect. Also the after part of the boss may be formed with recesses and inner vanes adapted to lead the fluid forwardly through the boss and eject it from openings into the path of the fluid passing through the main blades. Reference has been directed by the Comptroller to Specifications 453/93, 21640/01, [both in Class 114, Ships &c., Div. II], 122,869, 210,841, 260,043 and 316,337, [all in Class 114, Ships &c., Propelling &c.].
Patent GB-1202988-A (GB)
Title: A closure construction for an opening in a ship's side
Inventor: PIENE GUSTAV
IPC: B63B19/08
Filed: 1968-06-28
Abstract: 1,202,988. Ship's ports. AKERS MEK VERKSTED A.S. 28 June, 1968, No. 30981/68. Heading B7S. [Also in Division B8] An opening in a ship's side is closed by a door 3, and is provided with an adjustable platform 4 to assist loading and unloading. In Fig. 2 members 16 engage pins on the top portion of the door. To open the door, pistons are extended from hydraulic cylinders 20<SP>1</SP> and pivot members 16 about fixed pivot 19<SP>1</SP> thus moving the door out from the opening. A wire (19) is attached to mounting 24 and the door raised. Platform 4 has pins 5 entering guideway 6 and wires 12, 13 are attached to pins 7 and 5 respectively. When door 3 has been raised a convenient amount, hydraulic cylinders (not shown) adjust wires 12, 13 to position platform 4 so that mountings 21, 22 on door and platform may be coupled. Wire (19) then lowers the door and platform to form a ramp. Alternatively, door 3 is held above the opening and platform conveniently positioned (Fig. 4, not shown).
Patent GB-1245011-A (GB)
Title: Solid methyl vinyl ether/maleic acid copolymers
Inventor: BURNS ERNEST BINGHAM
IPC: C08F8/00
Filed: 1968-06-28
Abstract: 1,245,011. Methyl vinyl ether/maleic acid copolymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 May, 1969 [28 June, 1968], No. 30988/68. Heading C3P. A solid copolymer of methyl vinyl ether and maleic acid is made by blending a watersoluble or -swellable methyl vinyl ether/maleic anhydride copolymer with 10-33% by wt. of water and maintaining the blend at an elevated temperature for a period sufficient to effect hydrolysis of at least some of the anhydride groups. The copolymer may be crosslinked with an epoxy compound, e.g. copolymerized glycidyl methacrylate, or a compound containing a plurality of -OH, -SH or -NH groups, e.g. polyethylene glycol, or copolymerized hydroxyethyl methacrylate, simultaneously with hydrolysis of the anhydride groups; and some of the anhydride groups may be reacted with an amine or alcohol, e.g. methanol. The copolymer may be blended with substituted hydroxy-benzoquinones or -benzoates, ethylenediamine tetra-acetic acid, 8- hydroxyquinoline or pentachlorophenyl laurate.
Patent GB-1038819-A (GB)
Title: A device for use in and a method of separating a wedge from a receptacle in which the wedge is engaged
IPC: H01R4/08
Filed: 1965-07-22
Abstract: 1,038,819. Wedge extracting devices. AMP Inc. July 22, 1965 [Aug. 7, 1964], No. 31201/65 Heading B4C. [Also in Division E2] A device for use in extracting a wedge 2 from a receptacle 1 comprises a spring clip 6 having resilient side walls 8 for gripping the receptacle and an abutment 10 extending from a base 7 of the clip and adapted to transmit to the receptacle a force applied to move the receptacle relative to the wedge when the latter is restrained against movement in the direction of the applied force. In the construction shown in Fig. 1, the clip 6, which may be of spring steel on resilient plastics material, is sprung open by means of handles 9 formed on the walls 8 so that a receptacle 1, in which electric cables CM are gripped by the wedge 2, may be engaged therewith. The combined assembly is then inserted into a tool having an abutment 4, Fig. 4 (not shown), for engagement with the rear end of the wedge, a plunger 14, which may be driven by means of an explosive charge, being arranged to strike the abutment 10 on the clip, thereby separating the wedge from the receptacle. In modifications, one or both handles 9 may be dispensed with.
Patent GB-855584-A (GB)
Title: Improvements in or relating to impulse current installations
IPC: A45C1/02
Filed: 1958-09-30
Abstract: 855,584. Spark gaps. SIEMENS-SCHUCKERTWERKE A.G. Sept. 30, 1958 [April 24, 1958], No. 31215/58. Class 39(1). [Also in Group XXX] A discharge installation across which high currents are discharged from capacitors 6 is constructed so that it may be readily dismantled. The installation which is coaxial in construction comprises a vessel 1 containing the main spark gap which may be discharged under vacuum, and an annular control gap 8, the electrodes of which are spaced by insulators 25. The control gap is ionized by a capacitor 20 discharging through a gap 19 and an auxiliary gap 11. The capacitors 6 are mounted circularly round vessel the connections being made by coaxial connecting leads 7. The capacitors 6 are mounted in two banks and may be connected in parallel or partly in series. The parts comprising the installation are designed to be readily detachable, the mating surfaces being arranged to be of different metals e.g. copper and iron to avoid welding. The annular spark gap 8 may be divided into a number of individual gaps in parallel each connected to a separate coaxial connecting lead.
Patent GB-942850-A (GB)
Title: Composition and processes relating to electroless plating
IPC: C23C18/28
Filed: 1961-08-30
Abstract: An aqueous acidic solution for sensitizing surfaces prior to currentless deposition of copper comprises 0.01-5.0 grams per litre of precious metal ions (i.e. Os Ir Pt Pd Au or Rh) and a stoichrometric excess of Sn(ous) ions. The salts may be chlorides, bromides, fluorides, fluobarates, iodides, nitrates, sulphates or acetates, the use of chlorides being preferable. They are dissolved in an aqueous solution of HCl, HF, HBF4, HI, H2SO4 or CU3COOH which may have a concentration of 0.001N-15N. The bases treated may be Cu, Co, Ag, Au, steel, brass, sterling silver, or plastics, and the use of the solution in the manufacture of printed circuits is described when a further copper coating may be applied by electroplating or electroless plating.  The use of an alkaline cleaner comprising: sodium isopropyl naphthalene sulphonate 3 g.p.l., sodium sulphate 1 g.p.l., sodium tripolyphosphate 14 g.p.l., sodium metasilicate 5 g.p.l., and tetra sodium pyrophosphate 27 g.p.l., and ammonium persulphate and cupric chloride etchant solutions is also described. Specifications 494,559, 674,630, and U.S.A. Specification 2,908,557 are referred to.
Patent GB-989588-A (GB)
Title: Rotary fluid delivering machine
IPC: F04C2/10
Filed: 1963-08-07
Abstract: 989,588. Rotary pumps. R. LINDER. Aug. 7, 1963 [Aug. 30, 1962], No. 31235/63. Heading F1F. A rotary pump comprises a piston 1 having a uniform thickness and a central opening 20 having formed therein internal gear teeth; a chamber 4 bounding the piston and limited by transverse walls 6, 7 and peripheral wall 5, said peripheral wall having formed therein six cylindrical surfaces which form with the piston three separate elementary chambers 21, 22 and 23; and a driving shaft 3 extending through opening 20 and carrying eccentrically a pinion 2 meshing with the internal teeth in said opening 20 such that on rotation of the pinion the piston revolves and executes a translational movement in its plane of rotation, whereby the periphery of the piston permanently contacts the three convex surfaces of the peripheral wall. As shown, at the apex of each elementary chamber are positioned hollow cylindrical valves 13a, 13b and 13c which include two diametrically opposed ports 33 and 34. The valves are controlled by gearing 12 such that during rotation annular chamber 15 is connected through ports 33 and 34 with the interior of their respective elementary chambers and when the valve has rotated through 180 degrees, the elementary chambers are in communication with annular chamber 18 via ports 33 and 34. Fluid to be compressed enters chamber 15 via pipe 14 and at the appropriate position of the valves enters the respective elementary chamber where it is compressed and then expelled into chamber 18 and out of the pump via outlet 16. The three convex surfaces are formed of cylindrical rollers 24, 25 and 26 made, e.g. of metal or a selflubricating synthetic material, the rollers being sealed with reference to the corresponding surfaces of wall 5. Packing pieces 19 of self lubricating synthetic material or metal are employed in the transverse surfaces of piston 1. The eccentricity of the pinion 2 with respect to shaft 3 is given by e = P.C.D. of pinion/125 and the distance A separating the axis of shaft 3 from the axis of the rollers is given by A = 3À9722 x P.C.D. of pinion. The pump may be used as a vacuum pump, compressor or as a generator of compressed gas adapted to feed a compressed air engine. When the pump is modified to feed a gas engine or turbine, explosion chambers are incorporated. Channels may be included for the circulation of a coolant and auxilliary channels may be included for reversing the direction of flow of medium through the pump.
Patent GB-694205-A (GB)
Title: Improvements in or relating to electric pulse reshaping apparatus
IPC: H03K5/12
Filed: 1950-12-22
Abstract: 694,205. Pulse shaping circuits. GENERAL ELECTRIC CO., Ltd., and WARD, P. W. Dec. 5, 1951 [Dec. 22, 1950], No. 31260/50. Class 40 (vi). A pulse shaping circuit comprising a pair of rectifiers which have their like poles commoned and connected to a biased load resistor the input pulse train to be shaped being applied to the other pole of one rectifier and an output of a local pulse generator is applied to the other pole of the second rectifier; the shaped output pulse train being derived at the commoned poles of the rectifier. Fig. 1 shows a circuit for reshaping an incoming amplitude modulated pulse train, Fig. 2 (a), of a pulse multiplex communication system. A local pulse generator 8 synchronized by the incoming pulse train produces a train of positive pulses, Fig. 2 (b), occurring at each possible pulse position of the multiplex system and of amplitude greater than that of any pulse in the incoming pulse train. Rectifiers 2 and 3 which may be germanium crystals, are poled so that the input voltage applied at the grid of the amplifier stage 9 follows whichever of the two waveforms of Figs. 2 (a) and (b) is at any instant the more negative, the positive bias voltage of the rectifier always exceeding the voltage of their negative poles. Thus ideally an input voltage would be applied to valve 9, as shown in Fig. 2 (c), but due to the finite reverse resistance of rectifiers 2 and 3 an input voltage as shown in Fig. 2 (d) obtains. The unwanted " break-through " pulses in the waveform of Fig. 2 (d) are removed by applying an output of generator 8 to the cathode of valve 9 so that an output waveform as shown in Fig. 2 (e) is obtained at its anode. The pulses of this train follow the difference in amplitudes of the pulses in the incoming pulse train of Fig. 2 (a). In a modification, Fig. 3 (not shown), a number of amplifying stages are connected in cascade with reshaping stages, fed from a common pulse generator connected between them.
Patent GB-600594-A (GB)
Title: Improvements in or relating to endless tracks for amphibious vehicles
IPC: B62D55/096
Filed: 1945-11-21
Abstract: 600,594. Endless tracks for vehicles. FOOD MACHINERY CORPORATION. Nov. 21, 1945, No. 31311. Convention date, Jan. 8, 1942. [Class 79 (i)] [Also in Group XXXIII] An endless track for an amphibian vehicle comprises grousers each of which has waterengaging blades and a block extending downwardly below the blades, consecutive blocks forming a relatively continuous support to protect the blades when the amphibian is operating on land. The endless track comprises an endless belt 11 of rubber in which are embedded endless cables 13 and transverse members 14 which clamp the cables and through which pass bolts 22, 23 to secure the grousers. Each grouser comprises a pair of water-impelling blades 31 forming a pair of cups 32 opening downwardly and rearwardly, and a central box-like member 30, which preferably projects slightly beyond the edges of the blades 31, to take the weight when operating on land. The central bolts 23 also secure guide members 15. Additional clamping members 14 with bolts 25 may be provided intermediate those to which the grousers are secured.
Patent GB-1526639-A (GB)
Title: Brake
IPC: F16D55/14
Filed: 1977-07-26
Abstract: 1526639 Full-face disc brakes; wear adjusting KLOCKNER-HUMEOLDT-DEUTZ AG 26 July 1977 [11 Aug 1976] 31318/77 Heading F2E Where the brake is applied by relative rotation of two pressure discs 5, 6, trapping between them rolling bodies 8 lying in facing recesses 7 having ramp surfaces, so that a pair of brake discs (not shown) splined to a shaft 11 are forced outwards against fixed friction surfaces, and a pair of stops 22 act on peripheral regions of respective pressure discs to prevent their rotating with shaft 11, the position of at least one of the stops is adjustable to take up excessive rotational play of its associated disc, adjustment being effected automatically in dependence upon one or both of the following: (a) the angular position of the associated pressure disc, and (b) the position occupied by a brake-actuating linkage 14, 15, in each case when the brake is in its applied condition.
Patent GB-170770-A (GB)
Title: Improvements relating to padlocks
IPC: E05B67/38
Filed: 1920-11-05
Abstract: 170,770. Timmel, K. Nov. 5, 1920. No Patent granted (Sealing fee not paid). Padlocks.-A safety plate is readily affixed to, or detached from, a padlock, to ensure that the space d embraced by the shackle c is only just large enough to admit the staple, preventing the insertion of a forcing-tool. The plate h is attached to the side of the padlock a by a hook i engaging the pivoted end of the shackle and a loop k through which passes the free end of the shackle. If desired, there may be a pair of such plates h, one on each side of the padlock.
Patent GB-705596-A (GB)
Title: Improvements in and relating to metal containers
IPC: B65D25/14
Filed: 1950-12-28
Abstract: 705,596. Seamed joints. MANUFACTURERS DE CAOUTCHOUC INDUSTRIEL P. LACOLLONGE SOC. ANON, and USINES D' EMBALLAGES VAN LEER SOC. AR.L. Dec. 28, 1950 [April 13, 1950; July 17, 1950], No. 31494/50. Class 83 (4). [Also in Group XVII] A metal container, particularly a drum, having an internal lining has its body provided with a circumferential abutment, the edges of the lining being pinched between the abutment and the container-end, but either not extending or extending to not more than half its width into the seam beween the container end and body In Fig. 1, the abutment is formed by the inwardly directed corrugation 15 of the body 13, and the lining 12, 14 is pinched between the portion 18 and the end 11 when the edges are joined by rolling. The corrugation 15 is reinforced by a ring 18. The corrugation may take several forms, Figs. 2, 3 and 4, and the reinforcing ring may be extended into the roll seam, Fig. 3, or formed by an extension of the rim reinforcing band 17, Fig. 4. In Fig. 6, the abutment is formed by a stepped internal ring 16.
Patent GB-774861-A (GB)
Title: Improvements in or relating to funnels for liquids such as lubricants in oil cans
IPC: B65D25/42
Filed: 1955-11-04
Abstract: 774,861. Funnels for liquids. LA MAUVINIERE, J. L. DE. Nov. 4, 1955 [Nov. 5, 1954], No. 31528/55. Class 125(2). A funnel for liquids consists of a funnel part 4 made of flexible plastic material and, extending outwardly from its rim, having a lug 5 apertured to receive the neck 2 of the supply container in such manner that the container closure can be taken off and put on with the funnel attached. The discharge end of the funnel is formed as a channel 9 to catch any drip. A captive stopper may be provided for the discharge end. As shown in Fig. 2, the funnel hangs alongside the container but, when the latter is tilted, the funnel swings out. As shown in Fig. 5, the lug is less flexible so that the funnel can be rotated through 180 degrees from the filling position shown to a position in which it lies along the top of the container. The funnel, when in filling position can serve as a prop for the container.
Patent GB-1335160-A (GB)
Title: Automatically rotatable worktable apparatus for a machine tool
IPC: B23Q1/54
Filed: 1972-07-06
Abstract: 1335160 Automatically rotatable table apparatus METABOWERKE KG CLOSS RAUCH & SCHNIZLER 6 July 1972 [6 Aug 1971] 31605/72 Heading B3B  An automatically rotatable table apparatus with clamping stations 10 has a table 5 rotatable by a drive system having a pole-change motor 2 provided with a brake and switch elements 33, 44, which in co-operation with control elements 32 initiate a speed switch-over and braking of the motor in dependence upon the position of the clamping stations. The clamping stations are mounted in carriers 24 that are secured to a spindle 4. Drive from motor 2 is through spur gearing 3, chain-wheel 13, and chain 14 to chainwheel 15. Drive of the individual clamping stations is from a motor via gearing 7, chainwheels 27, 29, shaft 6, chain wheels 30, 35 and chain 41. For synchronous operation highspeed rotation of the table from one position to another occurs until a bolt 32 contacts switch 33 which switches motor 2 to its low rotation speed. Further rotation occurs until bolt 32 contacts switch 44 to stop the motor. A spring-biased brake-rod 45 on bolt 16 serves for jerk-free movement of the table. Continuous rotation can be achieved by moving switch box 9 outwardly. Alternatively the synchronous rotation could be modified so that actuation of switch 44 causes high-speed rotation of the table instead of stopping it.
Patent GB-1114083-A (GB)
Title: Process for producing inosinic acid
IPC: C12P19/32
Filed: 1966-07-14
Abstract: Inosinic acid is prepared by a fermentation process which comprises culturing an adeninerequiring microorganism capable of producing inosinic acid in an aqueous nutrient medium containing adenine and, at least, a source of carbon and nitrogen in the presence of at least one of the compounds selected from the group consisting of guanine, hypoxanthine, guanosine, inosine, ribonucleic acid hydrolysate, derivatives of guanosine and derivatives of hypoxanthine under aerobic conditions at a temperature of from about 25-38 DEG  C. and a pH of about 5.5-8.5. The culture medium may be synthetic or natural and may also contain inorganic compounds such as magnesium sulphate, sodium phosphate, potassium mono- or dihydrogen phosphate, iron sulphate or other iron salts, manganese chloride and calcium chloride. Biotin and/or other appropriate vitamins may also be present. After fermenting, suitably for 2-3 days, the inosinic acid may be recovered by conventional means such as ion exchange treatment, solvent extraction, precipitation with metallic salts or chromatography. Specific micro-organisms used are Micrococcus glutamicus, Brevibacterium ammoniagenes and Bacillus subtilis.
Patent GB-1148924-A (GB)
Title: Improvements in and relating to holders for a plurality of packages of tetrahedral shape
Inventor: NORRIS CARLISLE JAMES
IPC: B65D75/50
Filed: 1966-07-14
Abstract: 1,148,924. Package of tetrahedral containers. TETRA PAK Ltd. 7 April, 1967 [14 July, 1966], No. 31725/66. Headings B8C and B8P. Tetrahedral packages 12 are stacked in a hexagonal container 1, and are held in place by a lid 14 shaped to fit the exposed surfaces of the tetrahedra and having an upstanding flange 18 for sliding into the container mouth. The container may be of six-faced pyramidal form. The lid may be stapled in place, and the container opened by removing a tearstrip 23. The lid and container are made from blanks illustrated in Figs. 4 and 5 (not shown).
Patent GB-321807-A (GB)
Title: Improvements in sprayers
IPC: B05B9/08
Filed: 1928-11-01
Abstract: 321,807. Elliot, G. Nov. 1. 1928. Portable hand pumps. -A compressed air reservoir 1 surrounds the pump barrel 7, which is detachably screwed by its socket 8 into the cap 9. Air delivered from the pipe 33 is led to a sprayer with injector action. The reservoir 1 has a false bottom 6 and a pivoted foot piece 4, and an adjustable safety valve 26. Air enters through aperture 20, and passing the cup leather 21 on the upstroke is forced through the non-return ball valve 11 to the reservoir 1.
Patent GB-462063-A (GB)
Title: Improvements in metal milling and like machine tools
IPC: B23Q7/14
Filed: 1935-11-18
Abstract: 462,063. Milling. HEAD, WRIGHTSON, & CO., Ltd., WRIGHTSON, SIR T. G., and GORE, G. E. Nov. 18, 1935, No. 31865. [Class 83 (iii)] In a milling or like machine the workpieces e are traversed through the machine in one direction only, being mounted on cradles f which at the loading and unloading positions are not held down by the machine bed and do not engage the feed screw k, means being provided for coupling the cradles together, Fig. 2, prior to their engagement by the feed screw, the cradles when the workpieces are being machined being traversed directly by the feed screw and held down and laterally upon or by the bed. The cutters c, d are carried by adjustably rotatable heads a, b the spindles being driven by the electric motors cl, d<1> respectively and the heads being transversely adjustable along the guideways a<1>, b<1>. The couplings i may be released automatically as the cradles leave the machining position.