baber/WOPTO huggingface dataset:
Patent GB-675587-A (GB)
Title: Improvements in two-part electric couplings
IPC: H01R13/28
Filed: 1949-08-22
Abstract: 675,587. Two-part couplings. CANN, W. A. H. Aug. 22, 1950 [Aug. 22, 1949], No. 21708/49. Class 38 (i). A two-part coupling comprises on each part one or more similar forked contact pins adapted to engage by intersliding of prongs to form contact pairs, one or both pins of each pair being surrounded by a socket to receive and constrict the prongs of the other pin of the pair. Fig. 5 shows a multiple contact connector, the two parts of which comprise outer sleeves 1, 5 secured together by a nut 10 on the part 5. Sleeves 1, 5 enclose pairs of insulating blocks 2, 4 and 6, 8, respectively, each pair carrying similar contact-pins 3, 7, respectively. In this embodiment the pins are circular and each comprises a pair of equiangularly spaced prongs, see Fig. 6, the planes of the prongs of opposing pins being set at right angles. The pins have tapered heads which enter sockets 4a, 8a in the blocks 4, 8, respectively, said sockets being of slightly smaller dimensions than the heads so as to constrict the prongs. Alternatively the pins may be rectangular or square and instead of having heads, the sockets may be tapered inwardly. A tongue 9 which fits into any one of a number of slots on one part enters a recess on the other part to polarize the coupling.
Patent GB-737231-A (GB)
Title: Improved petroleum resins i
IPC: C08F240/00
Filed: 1953-08-06
Abstract: A cracked petroleum fraction boiling between 20 DEG  and 240 DEG  C and containing from 2 to 50 per cent of cyclic diolefin dimers, is polymerized at from -20 DEG  to 90 DEG  C. in the presence of a Friedel-Crafts polymerization catalyst.  It is preferred that the fraction boils between 20 DEG  and 130 DEG  C., that the proportion of cyclic diolefin dimers is from 5 to 20 per cent, that the polymerization temperature is from 0 DEG  to 75 DEG  C., and that the catalyst is an aluminium halide, e.g. the chloride, present in from 0.5 to 3 per cent of the total mixture.  The cyclic diolefin dimers are preferably dimers and codimers of cyclopentadienes and are preferably obtained by cracking a petroleum fraction in the presence of steam at a temperature above 1000 DEG  F. separating a cyclic diolefin monomer fraction therefrom and heating it at from 100 DEG to 150 DEG  C. for 4 to 8 hours.
Patent GB-871116-A (GB)
Title: Improvements in insulator mounting assemblies
Inventor: ADAMS FREDERICK DOUGLAS
IPC: H01B17/26
Filed: 1958-07-07
Abstract: 871,116. Insulators. LODGE-COTTRELL Ltd. July 3, 1959 [July 7, 1958], No. 21742/58. Class 36. An insulator mounting assembly comprises a rigid annular insulator 1 supported by an annular resilient insulating member 4 secured to the insulator 1 by clamps 8, 9 secured to the plate 11. In modifications (not shown) an annular projection on the insulator 1 is engaged by the clamps with the interposition of sealing rings of a resilient dielectric. A conventional stress ring may be incorporated into the assembly.
Patent GB-1023643-A (GB)
Title: Improvements in or relating to pulsed radar systems
Inventor: MORTLEY WILFRID SINDEN
IPC: G01S13/26
Filed: 1962-06-05
Abstract: 1,023,643. Pulse radar. MARCONI CO. Ltd. Nov. 27, 1962 [June 5, 1962], No. 21791/62. Addition to 948,763. Heading H4D. The present system differs from that of the parent Specification in that the delay line is divided into 12 sections instead of 60 and each delay section is associated with a group of five narrow band filters. Each filter group is associated with a gate circuit group which is opened by delayed signals corresponding to those from the associated delay line section.
Patent GB-441863-A (GB)
Title: Improvements in or relating to card-feeding and reading mechanism for statistical machines
IPC: G06K7/02
Filed: 1934-07-25
Abstract: 441,863. Statistical machines. BRITISH TABULATING MACHINE CO., Ltd., Victoria House, Vernon Place, Southampton Row, London. July 25, 1934, No. 21807. Convention date, July 26, 1933. [Class 106 (i)] In a record-card-controlled statistical machine a plurality of feeding discs 251 are provided at the reading station which coact with the brushcontact roller 77 to feed the cards and which are located between the brushes 76 along the row of the latter. The brushes 76 are mounted in holders 252 in an insulating bar 216 and extend through the grooves 250 formed between the discs 251 into contact with the card, which is of thin cardboard or paper. The discs are preferably integral parts of an insulating roller 213.
Patent GB-1135816-A (GB)
Title: Carbonaceous articles
IPC: C08K3/04
Filed: 1967-05-11
Abstract: 1,135,816. Carbonaceous articles. UNION CARBIDE CORP. 11 May, 1967 [12 May, 1966], No. 21834/67. Heading C1A. [Also in Division C3] Carbonaceous articles are produced by a method which comprises mixing a comminuted carbonaceous filler with an epoxy resin and a polybasic carboxylic acid anhydride to produce a substantially homogeneous mixture, the epoxy resin being a polyglycidyl ether of a polyhydric phenol and the anhydride is present in an amount sufficient to react with and harden the epoxy resin to produce a thermosetting binder for the filler, shaping the mixture and heating the shaped mixture to cause the anhydride to react with and harden the epoxy resin and produce a self-supporting article, and carbonizing the article so produced by heating it in a substantially oxygen-free atmosphere. The epoxy resins employed in the binder system are the polyglycidal ethers of polyhydric phenols with the liquid diglycidyl ethers of bis-(4- hydroxyphenyl)-methane and bis-(4-hydroxyphenyl) - dimethylmethane being preferred. Liquid epoxy resins in which the main constituent is free of hydroxyl groups are preferred. The preferred curing agents are pyromellitic and trimellitic anhydride. The epoxy resin binder system may be modified with a thermoplastic carbonaceous binder, such as coal tar, and pitch, and the total binder should contain at least 20% by weight of the thermosetting binder.
Patent GB-1494405-A (GB)
Title: Tuning apparatus for an optical oscillator
IPC: H01S3/10
Filed: 1975-05-21
Abstract: 1494405 Parametric oscillators COHERENT RADIATION 21 May 1975 [30 May 1974] 21907/75 Heading H3X [Also in Division Hl] The optical oscillator tuning arrangement using a rotatable birefringent plate between resonator mirrors as described and claimed specifically in terms of dye lasers in Specification 1,456,939 is extrended to other types of lasers, e.g. CO 2  gas lasers, and to optical oscillators in general of which a parametric oscillator is an example.
Patent GB-1351901-A (GB)
Title: Stabilizing asphalt in water-base drilling fluids
IPC: C09K8/22
Filed: 1972-05-10
Abstract: 1351901 Boring earth &c AMOCO PRODUCTION CO 10 May 1972 [2 Aug 1971] 21922/72 Heading E1F [Also in Division B1] A drilling fluid consists essentially of water and the following:-flaxseed meal 0.05 to 3.0 1b per bbl, ground asphalt, for example gilsonite, 0.05 to 3.0 1b per bbl, ground asbestos 0.2 to 5.0 1b per bbl, preservative for flaxseed meal 0 to 0.1 1b per bbl, oil 0 to 20% by volume, water soluble salt 0 to saturation, stabilizing agent 0.0005 to 0.05 1b per bbl, the stabilizing agent being selected from (1) the reaction product of from 3 to 6 moles ethylene oxide with 1 mole to alkyl phenol, the alkyl group containing from 8 to 12 carbon atoms, and (2) the reaction product of from 8 to 13 wt% ethylene oxide with from 87 to 92wt% polypropylene glycol having molecular weight between 1700 and 3500, and the stabilizing agent being used as a solution in a mixture of water and an alcohol selected from normal propanol, monobutyl ether of ethylene glycol, monobutyl ether of diethylene glycol, the volume of water in the mixture being at least as great as the volume of alcohol.
Patent GB-1154287-A (GB)
Title: Improvements in or relating to Padlocks
Inventor: HING LO HUNG
IPC: E05B67/02
Filed: 1968-05-09
Abstract: 1,154,287. Padlocks LO HUNG HING. 9 May, 1968, No. 21929/68. Heading E2A. A padlock comprises a body of one material eg. steel enclosed in a casing of another material e.g. brass.
Patent GB-481484-A (GB)
Title: Improvements in or relating to vehicle direction indicators
IPC: B60Q1/34
Filed: 1937-08-10
Abstract: 481,484. Road - traffic signals on vehicles; mechanical bells. COURTINADE, F., and KIELEY, W. F. Aug. 10, 1937, No. 22003. [Classes 13 and 118 (ii)] In signalling change of direction of a vehicle, one of the steered road wheels actuates an audible signal 10 when its plane of rotation is changed. A rod 24, working in a sleeve 22 contained in a block 20, carries a tee-piece 26 having extensions 27, 27a which engage the dust cover 36 of the road wheel. A rod 31, connected to the arm 27a carries a finger 32 to operate a dog 33 pivoted at 17 and having an arcuate portion 34 to engage the bar 16, a spring 35 normally urging the portion 34 into contact with the bar 16. The bar 16, having a flexible extension 15 carrying the clapper 14, is retained by a spring 18 against a stop 19. Upon the road wheel being deflected, the rod 24 is displaced inwardly against a spring contained in the sleeve 22, the finger 32 engaging the dog 33 and lifting the arm 16 until the dog is passed, whereupon the clapper is released and strikes the bell under the action of the spring 18. A member 30 may be provided to prevent rotational movement of the arm 24 and a pad 37 actuated by the pedal 39 may be inserted between the bell and clapper to prevent the device being sounded.
Patent GB-597801-A (GB)
Title: Improvements in composite metal sheeting and the manufacture thereof
IPC: B23K20/04
Filed: 1945-08-27
Abstract: 597,801. Non-conducting coverings. ARDOR INSULATION CO., Ltd., and RICHARDSON, G. Aug. 27, 1945, No. 22013. [Class 64 (ii)] [Also in Groups VII and XXII] Composite sheets for heat insulation 2 comprising a corrugated sheet A of foil-like thickness stapled to a flat sheet B with flattened ridges between the stapling points 31 is formed by passing sheets A, B between intermittently rotated corrugating rolls 4, 5 and feed rolls 6, 7 respectively. During the rest period an anvil 11 and stapler 12 are operated by cams 22, 20 to secure the sheets together. A support roll 9 is driven from a roll 15 which feeds the sheets to a delivery belt 16. Specification 482,747 is referred to.
Patent GB-604461-A (GB)
Title: Improvements in tractor-trailer brakes
IPC: B60T13/58
Filed: 1945-08-27
Abstract: 604,461. Fluid-pressure operated brakes. KELSEY-HAYES WHEEL CO. Aug. 27, 1945, No. 22026. Convention date, Feb. 21, 1944. [Class 103 (i)] In a brake system for coupled tractor and trailer vehicles, the hydraulic pressure by which the tractor brakes are directly applied by a pedal operated master cylinder moves a valve whereby the trailer brakes are applied by a separate pressure source, at a pressure proportional to that of the tractor brakes. Fig. 2 shows one form of valve with connections to pipes 13, 14, 15 leading respectively to the hydraulic pipe lines of the tractor brakes, to a compressed air reservoir and to the trailer brake cylinders, the valve and reservoir being carried by the tractor. A differential piston 22, 23 slidable in the valve casing is connected to a slide valve 20. Normally as shown, the tractor cylinders are open to atmosphere by passages 33, 34. When the tractor brakes are applied, the hydraulic pressure acting on piston 23 moves the valve to connect pipes 14, 15 through an annular passage 31. The passage 34 having been closed, the pressure in the pipe 15 and trailer cylinders acts on the piston 22 and when the pressure is sufficient to overcome the hydraulic pressure on piston 23, the pistons and valve return sufficiently to close the passage 31. In a modification, the pipes 13, 15, are in alignment and are both directly connected to the respective piston chambers. An annular chamber is formed by a part of the piston 23 of reduced diameter and is connected by passages extending longitudinally through part of this piston and through the piston 22 to the chamber of piston 22 and thus to the trailer brakes. This chamber is normally in register with an atmosphere port in the casing, but when the pistons are moved to apply the brake it registers with a port leading to the reservoir.
Patent GB-1490587-A (GB)
Title: Preparation of flexible photoconductive compositions and articles
IPC: G03G5/07
Filed: 1975-05-22
Abstract: 1490587 Polymers containing selenium XEROX CORP 22 May 1975 [20 Sept 1974] 22040/75 Headings C3R [Also in Division G2] A photoconductive copolymer is obtained by condensing and polymerizing a mixture of the vapours of selenium or a selenium alloy and the vaporized pyrolysis product of a cyclic dimer of formula where Y, Y<SP>1</SP> and Y<SP>11</SP> are hydrogen, halogen or alkyl. Selenium or a selenium alloy is heated to obtain vapour which is conveyed into a condensation chamber where it mingles with vapour obtained by heating and pyrolytically cleaving the cylcic dimer, which vapour also is conveyed into the condensation chamber, the mingled vapours then condensing and polymerizing on to a relatively cool substrate. The material may be used as for electrophotographic reproduction as an electrostatically charged layer of the material may be exposed to a light and shadow image causing selective dissipation of the charge and so forming a latent electrostatic image which may be rendered visible with finely divided coloured material.
Patent GB-1000541-A (GB)
Title: Conduit with enlarged end and method of forming same
IPC: H02G3/06
Filed: 1961-06-19
Abstract: 1,000,541. Moulding tubes. CATERPILLAR TRACTOR CO. May 28, 1964 [April 6, 1964], No. 22077/64. Heading B5A. [Also in Divisions F2 and H2] An enlargement is formed at the end of a plastics-sheathed flexible tubular metal conduit 16 by folding an extended portion 17 of the sheath back upon itself between the sheath and the metal body. The folding back is done by the tool 27-28 shown in Fig. 5 which is inserted into the tube after the end of the plastics sheath has been softened by heating. The conduit is fixed to some electrical fitting 10 by the gland 12 which bears against a ring 13 so confining the enlarged end between the ring and an internal flange 15 formed on the threaded outlet of the fitting. To avoid cutting the insulation of any wires on the sharp edges at the end of the tube a flanged plastic ferrule 20 is pushed into the tube before assembly in the gland fitting. If the conduit end is to be free of any fitting, a plastic cover can be clipped over the enlarged end (Fig. 2, not shown).
Patent GB-1269633-A (GB)
Title: Improvements relating to microwave antenna arrays
Inventor: COSSLETT MICHAEL FRANK
IPC: H01Q13/26
Filed: 1968-05-09
Abstract: 1,269,633. Aerials. EMI Ltd. 5 May, 1969 [9 May, 1968], No. 22140/68. Heading H4A. An aerial comprises a conductor which undulates about an axis so as to form a series of elements disposed on alternate sides thereof. The elements, which are, for example, of arcuate or of sinusoidal shape, have amplitudes relative to the axis, and extensions along the axis, which respectively increase and decrease from each end of the aerial towards its centre. Each adjacent pair of elements conforms substantially to an adjacent pair of elements of a respective Dolph- Tchebycheff array of a length equal to the aerial ; each such array has a number of elements related to the axial extension of one of the respective pair of elements of the aerial; and each such Dolph-Tchebycheff array has substantially the same main lobe direction and substantially the same main lobe to side lobe ratio. As described, an aerial comprises a strip transmission line in which an undulatory conductor 1, Fig. 1, with axis 4, is mounted on a slab of lowloss dielectric material 2, the underside of which is clad with conductive material to form a ground plane 3. A method of determining the shape of the conductor 1 is described, equations being given. A further ground plane may be provided above the conductor 1, with a slit cut in it, to permit transmission or reception over the length of said slit. It is also possible to dispsene with any ground plane. The aerial is suitable for installation in radio-guided missiles.
Patent GB-324680-A (GB)
Title: Process for the preparation of dyed effect threads
IPC: D06P1/651
Filed: 1928-07-31
Abstract: 324,680. Chemical Works, formerly Sandoz. July 31, 1928. Addition to 280,493. Cellulose acetates.-Dyed effect threads, fast to cross-dyeing, are obtained by subjecting to theacetylation treatments of Specifications 280,493, 314,913, and 323,500, vegetable fibres dyed with dyestuffs of the azo, polyazo, stilbene, sulphur, or vat series which are fast to acids, are insoluble in acid or anhydride, and contains no free amino group capable of acetylation. Azo or poly. azo dyestuffs which contain a diazotizable amino group may be diazotized on the fibre and coupled with a component prior to the acetylation. Thefastness, especially to washing and water, of direct dyes on cotton is enhanced by the acetylation. The following examples are specified : (1) Cotton-yarn, dyed with Chloramineyellow FF, is acetylated by treatment for 20 hrs. at 35‹ C. in a bath containing 14 per cent of acetic anhydride, 80 per cent of glacial acetic acid, and 6 per cent of zinc chloride; the yellow threads so obtained do not stain interwoven cotton in washing or in boiling for 1 hour. (2) Mercerized cotton yarn, dyed with Chlorantine fast red 7BL, is immersed in warm 99 per cent glacial acetic acid, centrifuged, and acetylated by treatment at 30‹ C. in a bath containing 20 percent of acetic anhydride, 75 per cent of glacial acetic acid, and 5 per cent of zinc chloride until a sample after washing and drying is no longer dyed violet with Chloramine sky blue FF; the red threads so obtained, after being interwoven with other threads, can be washed, boiled or treated with chlorine without alteration of shade. (3) An acetylating mixture at 80‹ C, containing 10 per cent of acetic anhydride, 87 per cent of glacial acetic acid, and 3 per cent of zinc chloride is pumped for 8 hrs. through cops which have been dyed with Thional black T and dried. and the cops are then hydroextracted, washed, and dried; the black threads so obtained retain their deep black tint in cross-dyeing with direct dyes. (4) 100 parts of kier-boiled yarn, dyed with Indanthrene blue CCD, are aeetylated by treatment at 40‹ C. in a mixture consisting of 250 parts of acetic anhydride, 900 parts of glacial acetic acid, and 100 parts of phosphoric acid until the colour of a washed and dried sample is no longer turned green with Chloramine yellow FF.
Patent GB-260708-A (GB)
Title: Improvements in cord pulleys for window blind rollers
IPC: E06B9/44
Filed: 1925-09-07
Abstract: 260,708. Wilkins & Wright, Ltd., and Tovey, F. J. N. Sept. 7, 1925. Roller-blinds, pulleys for.- In a cord pulley for a blind roller the cup 10 and the drum 11 are pressed from a single metal disc. A flange 13 is secured against the shoulder 12 by brazing &c. In a modification a beading or a series of pressed out projections on the drum may serve to retain the flange 13 in position. A second flange 14 is secured against the closed end 15 of the drum by a shouldered rivet 17 expanded over a washer 19. The drum is provided with diametrically opposed holes 22, 23, one hole being larger than the other to allow the knot at the end of the cord to pass into the interior of the drum.
Patent GB-589823-A (GB)
Title: An improved device for use on recording apparatus having record paper unwinding from a roll
IPC: G11B23/38
Filed: 1944-11-13
Abstract: 589,823. Recording-apparatus. LANDIS & GYR SOC. ANON. Nov. 13, 1944, No. 22377. Convention date, Nov. 16, 1943. [Class 106 (iv)] A paper strip 1, unwinding from a roll at a rate depending on time, for use in recording apparatus 7, has a mark 6, beginning at the rolled-up end 5 of the strip of record paper and extending obliquely over part of the length thereof, so that, within the range of the mark 6, the time for which the paper will last can be estimated by observation through a narrow aperture 10 in a cover-plate 9, the aperture 10 being transverse to the direction of motion of the strip 1. The mark 6 may be in the form of a line and may co-operate with a graduated scale on an edge of the aperture 10 or the mark may be in the form of frequent imprints of figures which while appearing through the aperture 10 give an indication of the remaining time.
Patent GB-367396-A (GB)
Title: Improvements in or relating to tunnel kiln roofs
IPC: F27B9/02
Filed: 1930-09-15
Abstract: 367,396. Tunnel kilns. HARTFORD, F. M., 310, West Broad Street, Columbus, Ohio, and KIER, S. M., Salina, Pennsylvania, both in U.S.A. Sept. 15, 1930, No. 22419/31. Divided on 365,614. [Class 51 (ii),] An air duct is formed above the suspended roof of a tunnel kiln by a top closure spaced above it. In the construction shown, the flat roof is formed of blocks 20, which are supported by arch bars 22 suspended from cross members 16 and having flanged lower edges engaging T-slots in the blocks. The air duct above the roof is closed by slabs 50 resting on angle-bars carried by blocks supported on the cross members 16. Air may be forced by a blower through the duct to cool the roof, and the air so preheated may be introduced into the water-smoking zone. The end blocks of the roof overlap shoulders 23 on the side walls, and the joints are sealed by compressible material 24. The roof blocks 20 may be removed in sections after the removal of blocks 20a arranged between the sections and having lifting elements 23a. Fuel-feeding devices 38<1> may discharge through the roof, as described in Specification 365,614.
Patent GB-731844-A (GB)
Title: Production of vinyl chloride
IPC: C07C17/25
Filed: 1952-09-05
Abstract: Ethylenedichloride is subjected to pyrolisis and the products scrubbed in an absorber with ethylenedichloride to obtain a solution of vinyl chloride and free hydrogen chloride.  Acetylene is reacted with the latter to give <PICT:0731844/IV (b)/1> vinyl chloride which is scrubbed with ethylenedichloride in a second absorber and the two solutions of vinyl chloride in ethylenedichloride combined for the recovery of vinyl chloride by fractional distillation, after removal of hydrogen chloride by stripping, the latter being recycled to the first absorber.  In the Figure, the products from the reactors 12, 17, before entering the absorbers 14, 20 in which they are scrubbed with ethylenedichloride are passed through condensers 47, 44 respectively.  Condenser 47 removes unpyrolized ethylenedichloride and some vinyl chloride.
Patent GB-1146590-A (GB)
Title: Improvements in or relating to filters
Inventor: BIRKS JOSEPH
IPC: B01D29/11
Filed: 1965-05-27
Abstract: 1,146,590. Filtration unit. UNIT SWIMMING POOLS Ltd. 26 May, 1966 [27 May, 1965], No. 22489/65. Heading B1D. A filtration unit for a swimming pool comprises a filter housing 10 on which is mounted a pump unit 12, preliminary strainer 11 protecting the pump, control valves 17, 18 and interconnecting pipework. Housing 10 may be of circular cross-section and carry a vertical plate 30, on which the other items are mounted, their weight bearing wholly on the housing 10 (Fig. 4, not shown). Housing 10 has an air bleed valve 62 and pressure gauge 61 on its removable cover (41) and a drain valve 66, and encloses two flat filter frames (52) of expanded metal supporting fabric envelopes on which diatomaceous earth is deposited at the start of filtration. Pump unit 12 comprises electric motor (25) with splash plate 36 mounted over pump (16). Initially, diatomaceous earth is placed in strainer 11 and delivered with the water through pump (16) to upper inlet (13) of housing 10, which is shielded by an internal baffle (57) (Fig. 4), filtered water leaving by lower outlet (14). Valve 18 is connected to inlet (13) and outlet (14) and delivers filtered water to the pool via valve 17. To clean the filter elements, valve 18 is adjusted to reverse the flow through the filter, valve 17 is closed and drain valve 66 of the filter housing opened to remove solids.