baber/WOPTO huggingface dataset:
Patent GB-584754-A (GB)
Title: Improvements in telephone conversation recording equipment
IPC: H04M1/65
Filed: 1944-08-26
Abstract: 584,754. Substation equipment. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Aug. 26, 1944, No. 16211. Convention date, Nov. 5, 1943. [Class 40 (iv)] [Also in Group XXXVIII] Relates to two kinds of system for recording telephone conversations, in which the additional apparatus is coupled to the telephone system without disturbing the wiring by means of a pick-up coil placed near to the usual induction coil. In one arrangement, Fig. 4 (not shown), a switch in one position connects the coil through an amplifier to a recording head and in another connects a reproducer through the same amplifier to a second coil for enabling the recorded message to be played back into the telephone circuit. In the other arrangements, which do not provide for playing back, two recording machines are provided arranged so that when the blank on one machine is nearly full, the other machine is started and the message is recorded for a short period on both machines. This action is looked after by cam-operated contacts in two arrangements, Figs. 1 and 2 (not shown). In the other arrangement, the sequence is controlled by pairs of relays 350, 360 and 370, 280, the members of a pair being mechanically associated in such a way that relay 380 (or 350) is mechanically latched after operation until the energization of the associated relay 370 (or 380). On the operation of key 365, the amplifier is energized, lamp 395 or 396 glows to indicate at the recording position, which recorder is prepared for operation and 390 glows at the key position. On the subsequent operation of key 363, 391 or 392, according to the recorder in operation, glows and the corresponding motor is started. When the end of the blank is nearly reached, contact 324 (or 334) is closed by the recording arm to energize the unlatching relay 370 (or 360) which locks up. The relapse of the associated relay 380 (or 250) then starts the other motor, but the previously running motor continues to run until the recording arm closes a second contact 327 (or 337) for operating the other latching relay 350 (or 380), which then opens the circuit of the first motor and makes an alternative circuit for the second.
Patent GB-1241770-A (GB)
Title: Light-polarising film and its production
IPC: G02B5/30
Filed: 1969-03-27
Abstract: 1,241,770. Light polarizing films. TOYO BOSEKI K.K. 27 March, 1969 [28 March, 1968; 7 June, 1968], No. 16224/69. Heading B5B. A light polarizing film comprises polyvinyl chloride, polyvinyl bromide or polyvinylidene chloride, or a mixture of two or all of these polymers having polyene chains containing from 10 to 20 conjugated double bonds in the molecule and being molecularly orientated in one direction or in two directions at right angles to one another. The film may comprise one of the above polymers or any mixture thereof in the form of a coating on one or both surfaces of a different stretchable film of a thermoplastic synthetic organic polymeric material which is compatible with said polymer or polymers. The coating may contain at least one different polymer which is compatible with the said polyvinyl chloride, polyvinyl bromide or polyvinylidene chloride. The film may be prepared by heating at least one of the three polymers specified or any mixture thereof at a temperature of from 90‹ C. to 150‹ C. in the presence of a dehydrohalogenation agent to cause partial dehydrohalogenation of the polymer(s) and the formation of 10 conjugated double bonds in the polymer or polymers heating the product at a temperature of from 70‹ C. to 150‹ C. to increase the number of conjugated double bonds present in the polymer molecule up to 20, shaping the product to form a film, and molecularly orientating the film in at least one direction. The dehydrohalogenation reaction may be carried out until the average degree of dehydrohalogenation is from 2 to 20 mol. per cent. The dehydrohalogenation agent may be a tertiary aliphatic amine having a boiling point above 90‹ C. or a N,N<SP>1</SP>.dialkyl-amide. The starting polymer may be in the form of a film prepared from a solution or a suspension of the polymer prior to dehydrohalogenation. It may be in the form of a solution or a suspension which may be coated on to a stretchable plastic film made from a polymeric material compatible with the starting polymer, prior to the molecular orientation step. When the orientation of the film is carried out in two directions at right angles to each other the ratio of the degree of stretching in one direction to the degree of stretching in the other may be at least 1À5. The stretching step in two directions may be carried out simultaneously at a temperature which is at least 10‹ C. higher than the softening point of the film. Alternatively the stretching operations may be carried out consecutively, the stretching step in one direction being effected at least 15‹ C. above the softening point of the film and the stretching step in the other direction being effected at a temperature higher than that of the first stretching step.
Patent GB-1507486-A (GB)
Title: Sunburn dosimeter
Inventor: ZWEIG A
IPC: A61N5/00
Filed: 1975-04-18
Abstract: 1507486 Ultraviolet dosimeter AMERICAN CYANAMID CO 18 April 1975 [9 May 1974] 16234/75 Heading H5R To indicate the sunburning dose of U.V. (290-320 nm) received by the skin from sun or other source, a disposable dosimeter element 17 comprising a compound which colours progressively and irreversibly on exposure to the U.V. is exposed simultaneously, having adjacent colour standards 18 for visual comparison. The compound may be dispersed in a solid polymer, e.g. polycarbonate or in solution in a container. The standards should have appearance similar to the sensitive element. If the compound is sensitive to wavelengths outside the required range, those unwanted can be filtered, possibly by the polymer carrying the compound. If shorter wavelengths. e.g. 200-290 nm may be encountered, the compound may be chosen to be sensitive also to these radiations, the carrier polymer being chosen to be non-absorbing. If the colouring of the outer layers of the element retards U.V. exposure of the under layers, change with time may tend towards logarithmic. Multiple standards may be supplied to correspond with more or less sensitive subjects. Compounds quoted are 3'-[p-dimethylamino)phenyl]-spiro-[fluorene-9,4'-oxazolidine]-2',5'-dione changing on exposure to 320 nm or shorter U.V. to p-dimethylamino-N-fluoren-9-ylidine aniline: and 1-acetoxy-2,2-dicyano-1,2-dihydro-4-methyl-1- phenyl-9-xanthenone changing, on exposure to light both below and above 320 nm and therefore requiring a filter absorbing above 320 nm, into orange-yellow (2-[3-(a-acetoxybenzylidene)-3.4- dihydro-4-oxo-2H-1-benzopyran-2-ylidene]propylidene} malononitrile.
Patent GB-981291-A (GB)
Title: Improvements in or relating to screw fittings for detachably connecting furniture parts together
IPC: F16B12/14
Filed: 1961-05-05
Abstract: 981,291. Furniture joints. H. HETTICH, and A. HETTICH, [trading as PAUL HETTICH & CO.]. May 5, 1961 [July 11, 1960], No. 16308/61. Heading A4W. [Also in Division F2] Two furniture parts are connected in angular relationship by a housing 10 and a shaped element 11 screwed to the respective parts 13b, 13a and a connecting member, e.g. a screw 15, which draws the element 11 into engagement with the inner surface of the housing. The members 10, 11, which are drawn or pressed from sheet material to form hollow bodies open at least on one side, may have marginal teeth to engage the furniture parts and the shaped element may have apertured lateral tongues, Fig. 3 (not shown) to take additional fixing screws.
Patent GB-1457306-A (GB)
Title: Method and apparatus for dispersing gaseous effluents
IPC: E21B41/00
Filed: 1974-04-11
Abstract: 1457306 Injectors SOC NATIONALE DES PETROLES D'AQUITAINE 11 April 1974 [12 April 1973] 16339/74 Heading FIE [Also in Division B1] A method of dispersing hydrocarbon gases into the atmosphere comprises directing a jet of the gas from an orifice into one end 3 of a mixing tube, open at both ends, causing air to be drawn into the tube at that end, the gas diluted by the induced air emerging from the other end of the tube into the atmosphere. In order to obtain the desired dilution of the gas to render it non-inflammable the ratio of the square root of the smallest area of cross-section of the tube to the square root of the area of the orifice is between 50 and 300. The tube 2 has a flared inlet portion 6 which may be provided with inclined fixed vanes 9. A circular frame 10 with inclined vanes may also be provided towards the outlet end of the tube to enhance mixing of the gas and air. A plurality of mixing tubes and gas jets may be provided in an installation Fig. 3 (not shown), the gas jets being supplied through a main pipe (12), Fig. 2 (not shown), and branch pipes (11) having valves (14) controlled in response to pressure sensors in the main pipe.
Patent GB-128098-A (GB)
Title: Improvements in or relating to Machines for Cutting and Folding the Edges of Fabrics or other Flexible Materials.
Inventor: REYNOLDS WILLIAM GEORGE WATERH
IPC: D06H7/04
Filed: 1918-10-08
Abstract: 128,098. Reynolds, W. G. W., and Kendall, H. Oct. 8, 1918. Folding edges of sheet material.-A machine for cutting a length of sheet material into a series of longitudinal narrow strips and folding over and forming hems on the edges of the strips comprises rotary cutters 1<a>, 2a, Fig. 2, a guide-plate 4 having a series of tongues 4a, Fig. 5, and vertical slits 4b, and a shaft 5 having spaced collars 5<a>, intermediate cutters 1<b>, 2<b> being arranged so that the material is cut longitudinally into separate strips having a hem one side and a plain non-folded edge on the opposite side. Members 4<c> on the guide-plate 4 and disks 5b on the shaft 5 serve to separate the adjacent unfolded cut edges of the strips, which are wound separately on a roller 9. The intermediate cutters may be dispensed with, the strips of fabric passing through a guide-plate having vertical slits acting on one edge only of the strips.
Patent GB-1384507-A (GB)
Title: Microbial degradation of polychlorinated biphenyls
IPC: C12R1/865
Filed: 1973-04-05
Abstract: 1384507 PCB microbial degradation BIOTEKNIKA INTERNATIONAL Inc 5 April 1973 [7 April 1972] 16363/73 Headings C6F and F3 Polychlorinated biphenyls in soil and aqueous liquids are microbially degraded by treatment with at least one microorganism selected from non- pathogenic, cell-mass-producing hydrocarbonutilizing strains of Cladosporium cladosporioides, Candida lipolytica, Nocardia globerula, Nocardia rubra, Saccharomyces cerevisiae and mutants thereof. The microorganism may be used in foam, slurry, powdered or pelletized form, and may be mixed with sawdust, pine bark mulch, wood flour, cotton linters, cottonseed hulls, straw, bagasse, marsh hay, shredded paper, cottonseed protein and inorganic salts of nitrogen and phosphorus. The microorganisms may be dispersed in open waters (sea, rivers, marshes &c.), or added to effluent in a single or multiple tank system preferably with aeration and stirring. Any oil, petroleum or petrochemical pollutants present are also degraded.
Patent GB-1384358-A (GB)
Title: Methods and apparatus for dynamically measuring camber angle and or track alignment angle of a tyred wheel in situ on a motor vehicle
IPC: G01B11/275
Filed: 1973-04-05
Abstract: 1384358 Vehicle wheel alignment measurement HOFMANN GmbH Gebr [trading as HOFMANN KG MASCHINENFABRIK Gebr] 5 April 1973 [14 June 1972] 16366/73 Heading G1X The camber angle and track alignment angle of one or more vehicle wheels are simultaneously measured in situ by a dynamic method which utilizes two sensor rollers 3, 4 which have parallel axes and are mounted for universal movement at point 6. A wheel 5 is rotated on or by rollers 1, 2 having their axes rigidly fixed on the apparatus. If the wheel 5 is tilted about a horizontal axis, i.e. has a camber angle, sensing roller 4 will preferentially experience a force which moves it along its axle 23 so as to affect the air pressure in pneumatic lines 12, 13 which are connected to impingement nozzles 10', 11'. A regulator 17 senses the inequality of pressure in lines 12, 13 and changes the pressure in outlet 18 until lines 12, 13 are again equal i.e. axle 23 is parallel to the wheel axle. The pressure in outlet 18 affects displacement member 24, which may be a piston in a cylinder, so as to cause a movement of the roller 4 about a horizontal axis until it is parallel with the wheel axis. A pointer connected to member 24 allows the camber angle to be measured. Similarly, a  track alignment angle, i.e. a displacement of the wheel axis about a vertical axis, effects rotation of the roller 3 about a vertical axis, together with roller 4 whose axis is maintained parallel to that of roller 3, until roller 4 and wheel 5 are parallel, the angle of rotation equalling the track alignment angle being measured by pointer 20 on scale 21. The axial displacement of the rollers 3, 4 may also be measured electrically or hydraulically.
Patent GB-908457-A (GB)
Title: Improvements in or relating to mechanical lubricators
Inventor: BALLARD DONALD HENRY
IPC: F16N27/00
Filed: 1960-05-10
Abstract: 908,457. Lubricating. CLAYTON DEWANDRE CO. Ltd. May 10, 1961 [May 10, 1960], No. 16474/60. Class 12 (3). An adaptor for a mechanical lubricator which intermittently supplies lubricant to lubrication points on a motor vehicle chassis, has a body 1b which, having a chamber 4, houses a ballvalve 5, and has an integral portion 1a which, having a chamber 7, houses a plunger 11, the latter being shorter than the chamber 7. The body 1b is screw-threaded at 6 for connecting to a pipe line leading to the lubrication point, the portion la is screwably attached to a support C, and a groove 2 and passage 3 connects the lubricant supply to the ball-valve. In use, lubricant supplied to the adaptor displaces the plunger 11 against the action of a spring 12 until the inner end of the plunger abuts the end wall of the chamber 7 so that a space is formed therein to receive lubricant. At this point the valve 5 opens to allow the remainder of the charge to be delivered to the lubrication point. After the point has been lubricated, the plunger 11 is returned by the spring 12, thus the lubricant is removed from the chamber 7 and delivered to a reservoir. Interchangeable plungers 11, or a single plunger with adjustable abutment means, can be used to vary the individual feed to the lubrication point. A passage 8 connects the chamber 7 to atmosphere via an annular passage 9. The latter is covered by a rubber &c. sleeve which allows escape of the air and also serves as a dirt excluder. Oil leaking past the plunger 11 is drained away through the passages 8, 9.
Patent GB-612695-A (GB)
Title: Improvements relating to windshields for aircraft
IPC: B64C1/14
Filed: 1946-05-30
Abstract: 612,695. Windshields. M.L. AVIATION CO., Ltd., (formerly-MALCOLM, Ltd., R.), and LOBELLE, M. J. O. May 30, 1946, No..16503. [Class 4] In a windshield assembly for aircraft of the kind having a screen of bullet-proof glass, comprising side plates 12, 13 fixed to the aircraft structure and contained within the windshield proper, this. latter 7 has a frame 22, connected to a fixed supporting plate 8 by horizontally-pivoted, cranked links 33 which enable the windshield 7 to be swung from the closed position shown to a forward position so as to render the space between it and the bullet-proof screen accessible for cleaning the surfaces. Locking-means for the windshield, a pair on each side being provided, each comprise a cam in the form of a square-thread screw member rotatable to engage a recess in an adjustable bolt mounted in the windshield; a rod 51 connects the operating levers 48 of the members of each pair, a single hand-lever 52 being used for actuating each pair. Hot-air pipes are provided-for preventing mist-formation on the glass surfaces.
Patent GB-838719-A (GB)
Title: Improvements in and relating to tubes of thermoplastic material
IPC: B29C65/18
Filed: 1957-05-27
Abstract: 838,719. Moulding ends on thermoplastic tubes. FLAX, V. May 27, 1957 [May 26, 1956], No. 16725/57. Class 87(2). [Also in Groups XI and XVII] A method of securing an end piece 2 to a tubular thermoplastic body 1 comprises deforming the end portion of the body to make an inward flange 3 and bonding the end piece to the flange, by applying heat and pressure. The tube 1 is heated rapidly to permit pressing round a mandrel 5 when soft ; the end piece 2 is then bonded thereto by applying further heat and pressure. The mandrel 5, of conductive material, has an inwardly inclined surface 6 and stem 9 round which is placed an insulating ring 10. A capping mould 7, fitting over the mandrel 5 and including an insulating skirt portion 8, bears on the upper surface of the end piece 2. The parts 5 and 7 form electrodes. The end piece 2 may be formed without an aperture.
Patent GB-918599-A (GB)
Title: Lithographic plate
IPC: B41N3/03
Filed: 1959-05-15
Abstract: A plate for use in lithographic printing is produced by coating a base with an alkylated methylol melamine resin and/or a polyalkyleneamine-melamine-aldehyde resin, and inter-polymerizing therewith a second coat of a water-soluble acrylic compound.  The base may be of aluminium, zinc, tin, magnesium, lead, chromium, copper or iron, and may be oxidized, e.g. by heating, treatment with chromic acid, or anodizing, before coating.  Foils, films and paper which may be impregnated with a phenolformaldehyde resin may also be coated.  Suitable acrylic compounds are acrylic acid, methacrylic acid, the ammonium, sodium and potassium salts thereof, acrylamide and methacrylamide.ALSO:A plate for use in lithographic printing is produced by coating a base with an alkylated methylol melamine resin and/or a polyalkyleneamine-melamine-aldehyde resin, and inter-polymerizing therewith a second coat of a water-soluble acrylic compound.  The base may be of aluminium, zinc, tin, magnesium, lead, chromium, copper or iron and may be oxidized, e.g. by heating, treatment with chromic acid, or anodizing, before coating.  Foils, films and paper which may be impregnated with a phenolformaldehyde resin may also be coated.  Suitable arylic compounds are acrylic acid, methacrylic acid, the ammonium, sodium and potassium salts thereof, acrylamide and methacrylamide.  Suitable resins are formed by reacting melamine, formaldehyde and methyl or ethyl alcohol, or melamine, formaldehyde and a polyalkylene polyamine such as diethylene triamine, triethylene tetramine, tetraethylene pentamine, the corresponding polypropylene, 4,41-iminobisbutylamine, 3,31-iminobispropylamine, 3,31,311-nitrilotrispropylamine, a polyethylene-imine or the reaction product of an alkylene diamine or polyalkylene polyamine with an alkylene dichloride, alkylene dichlorhydrin or epichlorhydrin.
Patent GB-633692-A (GB)
Title: Improvements in or relating to compressed air engines
IPC: F01B25/00
Filed: 1946-06-03
Abstract: 633,692. Speed governors. HOPKINSON & CO., Ltd., A., SIDEBOTTOM, T., and VOORSANGER, A. June 3, 1946, No. 16774. [Class 57] A compressed air engine is fitted with a control valve comprising an outer member 1 and an inner member 2 connected by a pin 5 to a shaft 10 driven through bevel gearing 21, 22. Mounted within the valve and driven by the shaft 10 is a governor comprising balls 12 mounted between dished plates 11, 13, the plate 13 having a skirt 13a and the plate 11 being connected to an adjustable member 6 for masking the ports in the control valve. A gland ring 3 is fitted between the members 1, 2 and is attached by screws 7 to a face of the engine casing so that shims may be placed to adjust the clearance between the bevel wheels 21, 22; an inspection opening 25 is provided. The bearing bush 16 for the shaft 10 forms an abutment for the spring 15 and is adjustable by the screw 17.
Patent GB-712248-A (GB)
Title: Improvements in apparatus for discharging stores from aircraft
Inventor: ROBERTSON FRANK HENRY
IPC: B64D1/04
Filed: 1951-07-16
Abstract: 712,248. Dropping bombs from aircraft. SAUNDERS-ROE, Ltd. July 4, 1952 [July 16, 1951; Aug. 2, 1951], Nos. 16811/51 and 18316/51. Class 9(2) In an aircraft rotary store discharger, longitudinal peripheral recesses are provided for supporting the stores, and rotation is effected by an electric motor, controlled through a switching system, whereby a selected store may be released only when the discharger is at rest. As shown, Fig. 1, the motor 31 rotates the drum 18 inside the casing 12 to bring a selected store in a recess 21 opposite the discharge opening 13. Release is effected by operation of the electromagnetic unit 40. Each store is secured to a beam 23, pivoted at 24 and engaged by a trunnion on a crutching-up lever to permit lowering for engagement of 40 with a lug on the store. Contact rings 43, 44, 45, 46, Fig. 6, rotate with drum 18. Motor 31 rotates while contacts 55 are closed, i.e. while relay coil 53 is energized through ring 43 and selector switch 50. Rotation of 31 ceases when gap 57 in 43 reaches the contact selected by setting of 50. The corresponding release relay 40 may then be energized by the push button 60 through contacts 56 and segment 58. In a second embodiment, (not shown), a drum holding the stores is rotated as before by an electric motor but release is effected by a single firing pin in the drum rotational axis. As shown, Fig. 11. contact rings 82, 83, 84 rotate with the drum. Motor 31 rotates while contacts 91 are closed, i.e. while relay coil 90 is energized through rings 84, 82, and selector switch 150. Rotation of 31 ceases when segment 86 reaches the contact selected by the setting of 150 and simultaneously the firing pin release relay, 96, may be energized by the push button 60. Specification 690,896 is referred to.
Patent GB-603709-A (GB)
Title: Improvements in welding rod and electrode holders
IPC: B23K9/28
Filed: 1944-09-04
Abstract: 603,709. Electrode holders. SHAW, H. Sept. 4, 1944, No. 16827/44 and 12076/45. [Class 39(iii)] An electrode holder wherein an electrode 14 (see Fig 1) is held in a transverse guideway 13 by a plunger 11 operable in an axial plunger guide 10, is provided with separately r e n e w a b le, insulating cover members 27 extending about the ends of the guideway and detachably secured to the electrodereceiving head by means such as a clip 25. One of the cover members 27 may serve as a closure at one end of the guideway to limit the entry of the electrode. In the example shown in Fig. 1, the plunger guide 10 and crosshead 13 are enclosed by a pair of insulating fireproof members 24 held at one end by the clip 25 and at. the other by thumb levers 22 and a flame shield 26. The plunger 11 is urged into yielding contact with the electrode by a spring 16 and into non- yielding contact by a cam 20 operated by the thumb levers 22. A tubular insulating handle 32 is a push-on fit over the four external. corners of the insulating members 24, and is fitted with an orificed plug 33 to admit a cable 28. In another example, Fig. 6, the plunger 11c is operated by a screw device. Rotation of a flame shield 57 and integral collar 53, causes a threaded sleeve 50 to slide axially since it is prevented from rotating by a pin 51 engaging in a slot 52 in the plunger guide 10c and keyed to the plunger 11c. An electrode is held between a fixed jaw 71 and a pair of plunger actuated jaws 73 movable side by side over guides 70. The jaws 73 are slidably retained within the guides by laterally extending enlargements 74 at their ends. An insulating U- shaped sheath 76 and an insulating sleeve 77 are held by a retaining clip 78 and spring clip 79, which also serves to secure the cover members extending about the ends of the guideway (see Fig. 5, not shown).