baber/WOPTO huggingface dataset:
Patent GB-875954-A (GB)
Title: Improvements in or relating to the production of polymeric material from monomeric epoxy compounds
Inventor: WADDAN DHAFIR YUSUF
IPC: C08G65/12
Filed: 1958-12-18
Abstract: Monomeric epoxy compounds of general formula: <FORM:0875954/IV (a)/1> in which R11 is an aryl, aryloxyalkyl, alkylaryloxyalkyl, or haloaryloxyaryl radical; R1 is hydrogen; or R1 and R11 may be joined to form a cycloaliphatic ring-are polymerized in contact with a catalyst of general formula Me (OR)x in which Me represents a metal selected from Group II and III of the Periodic Table; OR is an alkoxy radical; and x is the valency of the metal Me.  Epoxy compounds specified are styrene oxide, cyclohexene oxide, phenylglycidyl ether, tolylglycidyl ether, chlorophenylglycidyl ether and naphthyl glycidyl ether.  The preferred catalysts are the alkoxides of aluminium, zinc and magnesium, but alkoxides of other Group II and III metals (e.g. scandium, gallium, indium and thallium) may also be used; the alkoxides can be derived from primary, secondary or tertiary alcohols.  The reaction may be carried out at a temperature between 0 DEG  and 200 DEG C. or higher, at pressures up to 40 atmospheres, and in the absence or presence of a solvent, e.g. an aromatic or aliphatic hydrocarbon, a chlorinated hydrocarbon or an ether.  In the examples, viscous oils are prepared from styrene oxide using (1) aluminium tri(t-butoxide) as catalyst and toluene as solvent and (2) aluminium isopropoxide and benzene.  The products are useful as thickening agents.
Patent GB-912180-A (GB)
Title: Improvements in or relating to photographic cameras having automatic exposure control means
IPC: G03B7/12
Filed: 1959-12-03
Abstract: 912,180. Photographic cameras. KODAK Ltd. Dec. 3, 1959 [Dec. 5, 1958], No. 41081/59. Class 98 (1). [Also in Group XL (b)] A camera shutter is opened to an extent and for a duration determined by a photo-cell. When the camera release 70, Fig. 5, is pressed, a disc 78 connected to a conventional shutter speed ring rotates under the action of a spring 84 until the serrated edge 86 is arrested by an arm 18 in a position determined by the photoelectrically energized moving coil 16. Further pressure on release 70 actuates the trigger 94 releasing the disc 34, Fig. 2, a lug 35 rotates the arms 38, 40, clockwise and a pin 48 co-operates with slots 54, 56, Fig. 5, in vanes 58, 60, to rotate the same until the serrated edge 68 is arrested by an arm 20 attached to the moving coil 16. The serrations on edges 68, 86 correspond to ¢ light values so the adjustment is in 1 light value steps.
Patent GB-1392685-A (GB)
Title: Production of shaped articles of silicon carbide and silicon ni tride
IPC: C01B21/068
Filed: 1973-09-04
Abstract: 1392685 Silicon carbide-silicon nitride shaped articles BAYER AG 4 Sept 1973 [5 Sept 1972] 41485/73 Heading C1A Shaped articles comprising a homogeneous mixture of silicon carbide and silicon nitride are made by reacting ammonia with at least one carbon-containing halogenosilane at a temperature up to 200 C. to produce a silazane compound and converting the latter in the form of a melt or a solution, into a shaped article, and heating the latter in an inert atmosphere to 800 to 2000 C. The halogenosilane(s) may be of the general formula R n SiX 4-n  where R is hydrogen, or an alkyl, alkenyl or aryl group, at least one R being other than hydrogen, X is fluorine, chlorine, bromine or iodine, and n is 0, 1, 2 or 3. Specified halogenosilanes include methyltrichlorosilane, dimethyldichlorosilane, methyldichlorosilane, ethyltrichlorosilane, diethyldichlorosilane, vinyltrichlorosilane, phenyltrichlorosilane, diphenyldichlorosilane, phenyldichlorosilane and/or diphenylchlorosilane, and reaction with ammonia may be effected at 20 to 200 C. suitably in solution in a low-boiling chlorinated hydrocarbon. Before the silazane is converted into a shaped article, an organic binder, e.g. a dissolved linear organic polymer with a degree of polymerization greater than 200, in a concentration of 0À01 to 2À0% by weight, based on the weight of the solution may be added to the melt or solution; those specified include polyethylene oxide, polystyrene, polyisobutylene, polymethyl methacrylate and polyisoprene. The silazane compound may be converted into fibres by melt-spinning or dry-spinning. In dry-spinning, the solvent is expelled when the filaments pass through the spinning column, and condensation, with elimination of ammonia, results in a substantially infusible silazane fibre. A heat-resistant substance suitably in a proportion of 5 to 95% by weight based on the total of silazane and heat-resistant substance, may be added before the silazane is converted into a shaped article. Silicon carbide, silicon nitride, carbides and nitrides in general, silicates, borides, inorganic oxides, metals and carbon may be so added. Articles so made may contain 30 to 70% by weight silicon, 5 to 60% carbon, 5 to 35% nitrogen and 0 to 12% oxygen. The production of fibres by dry-spinning and films by casting, foamed articles, and of a laminate containing a matrix of silicon carbide and silicon nitride, impregnated with aluminium oxide fibres, is exemplified.
Patent GB-1457647-A (GB)
Title: Form fitting lower body garment and method of making same
IPC: A41B9/02
Filed: 1974-09-24
Abstract: 1457647 Tights WAYNE-GOSSARD CORP 24 Sept 1974 [29 April 1974] 41558/74 Heading A3V  Tights or other nether garments comprise two tubular blanks slit from the top, across the wales e.g. at 16 and seamed together. Fullness is thereby provided at the rear to accommodate the buttocks or alternatively at the front to accommodate the protuberant abdomen of a pregnant woman. Various slit profiles are illustrated.
Patent GB-1515858-A (GB)
Title: Packaged containers and a method for their manufacture
IPC: B65D8/00
Filed: 1975-10-13
Abstract: 1515858 Portable containers ZIRISTOR AB 13 Oct 1975 [18 Oct 1974] 41806/75 Heading B8D [Also in Division B5] A packaging container 1 is formed by lapseaming the ends of a heat shrinkable rectangular blank of foamed plastics covered on either side with homogeneous plastics material to form a tubular body, inserting an end number 10 into an end portion of the foamed body, and heat shrinking the end portion at least into underlying sealing engagement with the end number. As shown, the blank is wound, and the blank ends heat sealed together to form a longitudinal lap-seam 6, Fig. 1 (not shown), on a cylindrical portion 13 of a mandrel 12. The cylindrical body formed is then pushed downwardly so that it extends beyond the end of a lower frusto-conical mandrel portion 14. The end member is raised by a device 15 and held against the mandrel by vacuum. The body is then heated, e.g. by hot air, so that it shrinks into conformity with the mandrel and the lower edge folds under the edge of the end member. A device is then pressed against the container base to flatten the folded edge and to consolidate the body end member seal. The container is is then filled and closed by a butt-welded lid 2. Opening of the container is facilitated by provision of a thread 8 partially embedded in the inner layer of the tubular body laminate adjacent the lid and connected to a tab or lug (7) projecting from the body seam (6). Alternatively, a removable sealing strip may be provided of an aperture in the lid.
Patent GB-1358914-A (GB)
Title: Slide-holder
IPC: G03B23/12
Filed: 1971-09-09
Abstract: 1358914 Clips G J FREY 9 Sept 1971 42082/71 Heading E2B A clip 10 for holding framed transparent slides 12 has a waisted portion 24, formed by a bend in at least one arm of the clip for limiting the insertion of the frame and a bent out part 19 at the middle of one arm 15 to facilitate insertion of the corner of the frame into the clip. The clips are mounted on a flexible carrier 11 in a magazine (not shown) and running over square driving shafts 13. The clip arms 14, 15 are normally adjacent at their ends 18 to enable the frame to be gripped. Preferably, there is also an indentation 22 in the other arm 14. In an alternative form (Fig. 6 not shown) the bent out part lies at an extreme end of the clip instead of in the middle.
Patent GB-949875-A (GB)
Title: Improvements in or relating to door locks
IPC: E05B55/00
Filed: 1961-11-28
Abstract: 949,875. Latches. P. H. PEDERSEN. Nov. 28, 1961 [Nov. 30, 1960], No. 42569/61. Heading E2A. A door lock comprises a lock casing adapted to be positioned in a cylindrical aperture in a door and forming a bearing for a transversely extending handle spindle 36, Figs. 1 and 2 for actuation of the bolt 10 of the lock, the casing consisting of two components 12, 14 which can be clamped together and which have flanges to bear against lateral faces of the door, one of the components having an inwardly protruding tubular hub 18 which serves as a clamping member between the two components and as a bearing for the spindle and a pin 40 carried by the spindle and passing through a slot 42, in the hub, the pin constituting a coupling member between the handle spindle and the lock bolt 10. In the arrangement shown, components 12, 14 are clamped together at opposite sides of a door by the tubular hub 18 extending through both components and secured by a nut 20, the hub providing a bearing for the handle spindle 36. Bolt 10 which is spring loaded, is located in a tube 22 and is retractable by the pin 40 through the slot 42 in the hub 18 and also through a sleeve 44 on the hub, the sleeve 44 carrying a bifurcated arm 46 which embraces the bolt tube 22 in front of a pin 32 fixed to the bolt and movable therewith in slots 34 in the tube 22. In the arrangement according to Figs. 4 and 7 the wall of the component 12 and the hub are disposed eccentrically with reference to the components 12 and 14, and a key-operated lock 52 is provided with a pin 58 which co-operates with one arm of a pawl 62 pivotally mounted on the hub 18. The pawl 62 is formed by a U-shaped plate, arms 62b of which embrace the hub and the central portion 62c of which co-operates through a recess 66 in the tube 22 with a notch 64 on the bolt 10. The bolt 10 may also be locked by a manually operable swingable arm 68 on the component 14, the arm 68 having a pin 74 which engages a hole 76 in the arm 62a of the pawls. The sleeve 44 and arm 46 are constituted by a U-shaped part 82, arms 82a of which are journalled on the hub 18 and which co-operate with the pin 32. The central part 82b of the part 82 is slotted for the pin 40 which is biased by a spring 86. The component 12 is closed by a plate 88.
Patent GB-1029787-A (GB)
Title: Improvements in or relating to typewriter ribbons
IPC: B41J31/05
Filed: 1963-10-29
Abstract: 1,029,787. Ink ribbons. W. H. WOLOWITZ. Oct. 29, 1963, No. 42666/63. Heading B6F. An ink ribbon 10 has secured to a longitudinal strip of the ribbon, two tapes 12, 13 of ink-impervious material, one on each face, the tape 12 having an impact-transferable coating 12b of an opaque obliterating substance for use in replacing incorrectly typed letters. The tape 13 is provided for protecting the coating 12b as the ribbon winds on to its spool and may extend over the full height of the ribbon. An extension of the tape 13 may pass around the edge of the ribbon and be secured to the other side of the ribbon, the tape 12 being attached to the extension. The ribbon 10 is of woven nylon and the tapes 12, 13 are of heat-sealable non- woven nylon.
Patent GB-1391289-A (GB)
Title: Four channel stereophonic system
IPC: H04H20/89
Filed: 1972-09-15
Abstract: 1391289 Stereophonic broadcasting systems GENERAL ELECTRIC CO 15 Sept 1972 [21 Sept 1971] 42843/72 Heading H4L The conventional two-channel stereophonic radio system is modified to carry four stereophonically related signals. As described, the four signals are designated L F , L R , R F , R R  and the transmitter includes matrix means which produce outputs L F  + L R  + R F  + R R , (L F  + L R ) - (R F  + R R ), (L F  - L R ) - (R F  - R R ) and (L F  - L R ) + (R F  - R R ). The first and second of these signals form the sum and difference signals as in a conventional stereo system, the difference signal amplitude modulating a 38 kHz subcarrier which is then suppressed. A second 38 kHz subcarrier in quadrature with the first subcarrier is generated and is suppressed carrier amplitude modulated with the third signal (L F  - L R )-(R F  - R R ). The fourth matrix output amplitude modulates a 76 kHz subcarrier, which may be depressed or suppressed, the maximum degree of modulation being arranged by limiting to be between 30 and 90% of that otherwise obtainable, 60% being suggested as a suitable value. A filter removes most of the upper sideband. The resulting signals are combined together with a 19 kHz pilot signal, Fig. 1, delay means being included to equalize the envelope delay of the four signals, and the composite signal thus obtained frequency-modulates the main carrier wave. If the 76 kHz subcarrier is transmitted it may be used at the receiver to provide an indication of quadrophonic reception and to switch the appropriate circuitry, the 19 kHz pilot signal similarly indicating stereophonic reception. The receiver includes means responsive to the pilot signal and including a phase-locked loop for regenerating the first, second and third subcarrier waves for detecting the four matrix output signals, and de-matrix means responsive to these outputs to reproduce the four discrete audio-frequency input signals. Detailed circuitry relating to the transmitter and the receiver is described, the receiver being designed to use inductorless integrated circuitry.
Patent GB-429382-A (GB)
Abstract: 429,382. Lever clips. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., Birmingham Buckle Works, St. Paul's Square, Birmingham. Feb. 15, 1934, No. 4997. [Class 44] A lever clip for belts and the like has a lever 4 to which the gripping part is attached in a manner which allows limited rocking movement of the gripping member with respect to the lever to allow use with straps of different thicknesses. As shown in Figs. 4, 6 the lever 4 is pivoted between side flanges 3 of a plate 1 of curved formation and is provided with T -slots 8. The gripping member is formed from channelled bar providing gripping portions 9, 9<a> approximately at right angles to one another and is provided with T-form lugs 10 which are engaged in slots 8, the end of the lever being then bent to tubular form 6 to retain the lugs 10 at the ends 8<a> of slots 8. The lever is pivoted by pips or projections pressed from the flanges 3 to enter the ends of the tubular part 6. The lever 4 as shown has bent up lugs in which is pivoted a second lever 5 by which one end of the belt &c., not shown, may be secured to lever 4. The other end of the belt is adjustably gripped between plate 1 and the curved serrated edges of parts 9, 9<a>. In moving lever 4 to gripping position part 9 moves over the dead-centre and the edge of lever 4 snaps past retaining projection 11 pressed up from flanges 3. In the modified form of gripping member shown in Fig. 10, the parts 9, 9<a> are formed by bending a blank and punching out the lugs 10 from part 9<a> so that they lie in the same plane as part 9. Part 9<a> has a straight gripping edge. Specification 322,724, [Class 44], is referred to.
Patent GB-1027101-A (GB)
Title: Baby feeding bottles
IPC: A61J11/00
Filed: 1963-10-31
Abstract: 1,027,101. Feeding bottles. L. E. FOLEY. Oct. 30,1964 [Oct. 31,1963], No.42973/63. Heading A5X. A baby's feeding bottle, comprising a container to which is fitted a teat, is also provided with a separable partition across its neck, the partition providing a flow passage from the container to the teat and preventing fluid in the teat from running back into the container. As shown, the teat 22 and partition 16 are held to the bottle container 1 by an apertured cap 13 and the partition 18 is formed with a capillary flow passage 19, which acts as a fluid trap and retains the fluid by surface tension. The screw cap 13 and partition 18 are of a rigid plastics material and the teat is of a flexible plastics material. The container is of glass and is provided with graduations 24. It is said that the sucking in of air by the baby, when the bottle is tilted, is avoided.
Patent GB-1099455-A (GB)
Title: Improvements relating to colostomy appliances
IPC: A61F5/448
Filed: 1963-10-31
Abstract: 1,099,455. Colostomy appliances. J. B. LEIGH. Oct. 21, 1964 [Oct. 31, 1963], No. 42992/63. Heading A5R. A device for securing a colostomy bag to the body comprises a plate 10 with an aperture surrounded by a rim 13 and a ring 15 which fits inside the rim, the rim and the ring having a complementary recess and bead, respectively, which inter-engage to secure them together, with the neck of the colostomy bag gripped between them. A plate 10 for engagement with the body has an aperture surrounded by a rim 13 with an annular recess in its inner surface. The neck of a bag B is passed through and folded over a ring 15 having a bead 16 complementary to the recess. On inserting the ring in the rim, the neck of the bag is secured between the rim and the ring. The ring has a partannular flange 17 which overlies part of the rim, and in use the bag hangs over the part of the rim not covered by the flange, so that its neck is not restricted. A domed cover having a lateral opening for the passage of the bag may fit over or be integral with ,the ring. The plate 10 has integral studs which are engaged by loops of a belt for securing the device on the body.
Patent GB-1198724-A (GB)
Title: Film-Forming Material and Electrodeposition thereof
IPC: C09D5/44
Filed: 1967-09-21
Abstract: 1,198,724. Polyhydroxyamide oxazoline derivatives of maleinized oils or acids. PAN AMERICAN TUNG RESEARCH & DEVELOPMENT LEAGUE. 21 Sept., 1967 [2 Feb., 1967], No. 43005/67. Heading C2C. [Also in in Divisions C4 and C7] A film-forming material comprises the product of a Diels-Alder reaction between an α,#- unsaturated dicarboxylic acid or anhydride and an unsaturated oil or acid containing conjugated double bonds, said product having (a) a polyhydroxyamide group derived from a polyhydroxyamine containing a 1-hydroxy-2-aminoalkyl group and a carboxyl group of the α,#- unsaturated acid, and occupying the site of said carboxyl group, and (b) an oxazoline ring derived from the same polyhydroxy amine and the other carboxyl group of the α,#-unsaturated acid and occupying the site of said other carboxyl group. In examples, tung oil/fumaric acid, oiticica oil/fumaric acid and tung oil/ maleic anhydride adducts are reacted at 150 C. with tris-(hydroxymethyl) aminomethane, and tung oil/fumaric acid adduct is heated with 2-amino-2-methyl-1 : 3 propanediol. The products are dissolved in water and used with pigments as electrodeposition paints.
Patent GB-1466414-A (GB)
Title: Lawn mower having means for limiting pivotal movements of the lawn mower handle
IPC: A01D34/82
Filed: 1974-10-11
Abstract: 1466414 Stay for a lawn mower handle FLYMO SA 11 Oct 1974 44073/74 Heading E2F  A stay 6 for limiting the pivotal movement of a lawn mower handle 3 with respect to a housing 1 is pivoted to the handle and has a bent over end which engages in a slotted member 4 on the housing; normal movement being limited by blind end slot parts 10 and 11 but end portions 8 and 9 of the slot being able to be used if the stay is manually lifted out of the parts 10, 11. A member 7 is rigidly secured to the pivoted end of the stay and is made of resilient material to grip the handle in the upright position of the handle shown. To lower the handle, member 7 is disengaged and can be used as an operating lever to move the stay out of slot parts 10, 11 when necessary.
Patent GB-1189659-A (GB)
Title: Apparatus for Counting Coins.
Inventor: DOLMAN HENRY JAMES
IPC: G07D9/00
Filed: 1966-10-06
Abstract: 1,189,659. Change-giving apparatus; prizedelivery mechanism. BRECKNELL, DOLMAN & ROGERS Ltd. 28 Sept., 1967 [6 Oct., 1966], No. 44092/67. Divided out of 1,189,658. Headings G4V and G4X. The subject-matter of this Specification is identical with that described in Specification 1,189,658 but the claims are concerned with a mechanism for counting a predetermined number of coins for delivery comprising means for conveying coins to a receptacle from a bulk hopper past a counting disc mounted for stepwise rotation, said disc including a plurality of equispaced peripheral coin-engaging recesses with which each passing coin engages thereby rotating said counting disc one step, rotation of said counting disc on registering the predetermined number of coins being arranged to move a deflector into the path of coins being fed to the counting disc and return further coins to the bulk hopper.
Patent GB-991817-A (GB)
Title: A process for the preparation of a protective surface layer on aluminium or aluminium alloys
IPC: C23C18/36
Filed: 1962-11-22
Abstract: Aluminium or aluminium alloys for use in nuclear reactors are protected against corrosion with a surface layer containing Ni and Al, e.g. of NiAl3 covered by Ni2Al3 or Ni but particularly entirely of NiAl3, by coating an aluminium or aluminium alloy body with a phosphorus containing nickel alloy by chemical deposition, e.g. by reduction of Ni ions with sodium hypophosphite to obtain a coating containing up to 12% P, and extracting phosphorus from the coating by the action of an appropriate salt bath which also effects alloying of the Al and Ni by diffusion annealing.  The salt bath may consist of NaNO3 or KNO, mixed with KNO2 or NaNO2 respectively in ratios of 0.9.1.1 to 1.1:0.9, the temperature thereof being 450 - 600  DEG C. A preferred basic material may be an aluminium alloy of composition: - Si 8 - 15%, Ni 0.5 - 2%, Fe 0.2 - 1%, Mg 0 - 1.5% Ti 0 - 0.5%, Zr 0 - 0.5%, Al balance.  A comparison alloy is disclosed consisting of 1% Ni, 0.5% Fe, 0.3% Si, balance Al.  Prior to coating, an aluminium body may be pickled in aqueous NaOH or concentrated HNO3 and HF.
Patent GB-1130685-A (GB)
Title: Benzaldoxime derivatives
IPC: A01N/
Filed: 1967-09-28
Abstract: 1,130,685. Benzaldoximederivatives. RHONEPOULENC S.A. 28 Sept., 1967 [29 Sept., 1966], No. 44284/67. Heading C2C. [Also in Division A5] The invention comprises benzaldoxime derivatives of the general formula in which R 1  is hydrogen or a C 1 -C 3  alkyl group and R 2  is H or one or more halogen atoms or C 1 -C 3  alkyl groups. The compounds may be prepared by (a) reacting an oxime of formula with a benzyl halide of formula in which X is a halogen atom; or (b) by reacting an oxyamine of formula with a benzaldehyde of formula Examples are given of the preparation of (a) O - (3 - fluorobenzyl) - 3 - nitrobenzaldoxime; (b) O - (2 - methylbenzyl) - 3 - nitrobenzaldoxime; (c) O - (2 - chlorobenzyl) - 4 - methyl- 3 - nitrobenzaldoxime; (d) O - (3 - chlorobenzyl) - 3 - nitrobenzaldoxime; (e) O -(3- bromobenzyl) - 3 - nitrobenzaldoxime; (f) O (2 - fluorobenzyl) - 3 - nitrobenzaldoxime; and (g) O-(3,4-dichlorobenzyl)-3-nitrobenzaldoxime.