baber/WOPTO huggingface dataset:
Patent GB-1346279-A (GB)
Title: Hydantoin derivatives processes for their preparation and compositions incorporating them
IPC: C07D233/76
Filed: 1972-07-14
Abstract: 1346279 Hydantoins DIAMALT AG 14 July 1972 [30 July 1971] 33171/72 Heading C2C [Also in Division A5] Novel therapeutic compounds (I) where Alk is alkylene and each R, which can be different, is H or C 1  to C 5  alkyl, with the proviso that both R's are not H when Alk is -CH 2 -, are made by reacting (II) with Hal.Alk.COOH (Hal is halogen).
Patent GB-488283-A (GB)
Title: Improvements in trawling gear for deep sea fishing
IPC: A01K73/02
Filed: 1936-12-04
Abstract: Trawling-gear for dividing-nets described in Specifications 442,005 and 458,183 consists of a two-part headline, each divided centrally. One line is hollow, of rubber reinforced with canvas or with a metal casing, and tapers from wings up to centre.  This line may be stream-lined in section and has at each end a metal cap and valve. This line also carries internally a small rubber tubing with sliding wire for releasing the central connection, this wire working in conjunction with a similar wire for the foot ropes.  The trawl is connected to this line by releasable clips which are also used to connect the two parallel headlines together, the other headline consisting of a white manilla rope. A three-way anchorage at the centre of the trawl connects a tractor cable to the cod-end for hauling it aboard.  The outer ends of the two headlines are connected to doors or kites described in Specification 453,012, and the ground rope is also connected to these doors.  Five chain slings, three release devices, and two hook ropes are necessary in hauling the trawl on board ship.  Specification 484,977 is referred to.
Patent GB-1024067-A (GB)
Title: Plastic article and method and apparatus for making thereof
IPC: B29C39/10
Filed: 1964-08-14
Abstract: 1,024,067. Moulding bowling balls. BRUNSWICK CORPORATION. Aug. 14, 1964 [Sept. 16, 1963], No. 33340/64. Heading B5A. A method of moulding a bowling ball having a core 120 of specific gravity different from that of cover 121, comprises suspending the core within a mould by means of a thread 122, filling the mould with curable synthetic plastic material, curing this material to form the cover and cutting the thread flush with the surface of the cover to release the ball from the mould. As shown, the core 120 is of material having a higher specific gravity than the cover forming material and is suspended by a vertical thread 122, e.g. of nylon, secured in the core by a wooden plug 123. The cover forming material is introduced through opening 115 and after sufficient filling the core is lifted and a metal retainer 151, clamped on the thread 122, is engaged with a bracket 152 supported by a plate 153. In a second embodiment, Fig. 1 (not shown), the specific gravity of the core is less than that of the cover and a thread 22 is attached to the bottom of the mould and is arranged to extend vertically upwards during curing. A description of the core and cover compositions is given in Specification 871,704 [Division A6].
Patent GB-366953-A (GB)
Title: Improvements relating to aircraft
IPC: B64B1/00
Filed: 1930-11-07
Abstract: 366,953. Aircraft comprising an aeroplane and balloon. HARDIN, G. W., Greeneville, Tennessee, U.S.A. Nov. 7, 1930, No. 33602. Convention date, Nov. 7, 1929. [Class 4.] A balloon carrying a compartment for the pilot &c. is normally coupled to an aeroplane having controls operated from the compartment, means being provided for detaching the aeroplane in an emergency to enable a landing to be effected without it. A balloon comprising an envelope 6 containing gas bags 37 has a compartment 31 and two frusto-pyramidal projections 8 on its under surface which normally engage corresponding depressions in the fuselage 1 of an aeroplane having two propellers, beneath wings 2, and the usual controls. The two parts are secured together by bolts 13 sliding in ball bearings in tubes 9, 11 which are in alignment when the projections 8 are seated in their corresponding recesses. The compartment 31 has an opening to enable the aeroplane controls to be operated, and a lever 28 projecting from the aeroplane into the compartment enables ratchet gear to be actuated for withdrawing the bolts 13 which move along guides 18. Certain of the gas bags have tubes 40 leading to valves actuated by levers radiating from cords passing through a central tube 42 to enable the descent of the balloon to be effected and controlled. Valves 47 are provided on the remaining gas bags. The edge of the fuselage fits within a weatherproof groove on the envelope 6.
Patent GB-763461-A (GB)
Title: Electric reactors for catalytic gas reactions at high temperatures, and process for the endothermic production from methane and amonia, of both hydrocyanic acid and hydrogen
IPC: B01J19/24
Filed: 1953-12-03
Abstract: <PICT:0763461/III/1> A combined heating and catalytic body comprises a resistor 1 which may be metallic or non-metallic and may be made of rods or tubes or granules which is supplied by current through insulated and shielded nipples 8 and 81.  The resistor is enclosed by a fireproof dielectric layer 2 preferably of porcelain, alumina or quartz, and this layer is coated with a thin catalytic layer, preferably of a metal, such as a platinum group metal or alloy. The complex body may possess at least one axis of symmetry so that the heat developed flows uniformly from the resistor to the catalytic layer.  The complex body is arranged in a chamber 3 whose internal wall is coated with a catalytic layer similar to that on the fireproof layer.  The reaction chamber is arranged in a metallic case 4 containing thermal insulator 5 with inlet 6 and outlet 7 for the reaction gases.  The gap between chamber 3 and heater 2 comprises a reaction chamber.  The reeactor may contain more than one heating body.  The current supply and the rate of gas flow may be controlled so that the temperature imparted to the gases is less than that of the catalytic layers of the heating bodies and the temperature of the outer catalytic layer is greater than that of the gas but less than that of the catalytic layer of the heating body.  The process of the invention is useful for all continuous endothermic catalytic gas reactions and the production of hydrocyanic acid and hydrogen from ammonia and methane is exemplified.
Patent GB-826737-A (GB)
Title: Improvements relating to apparatus for reproducing sound
IPC: G10K15/10
Filed: 1955-11-25
Abstract: 826,737. Transmission systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 25, 1955 [Nov. 30, 1954], No. 33837/55. Class 40 (4). Primary loud-speakers 2, 3, 4 and additional loud-speakers 5, 6, 7 are arranged round the edges of a space 1 and are supplied with signals from corresponding individual soundtracks and pick-ups 2a-7a, Fig. 2 (not shown); all the loudspeakers receive substantially the same signals but with different timbres and/or intensities, and the signals supplied to the additional loud-speakers are suitably delayed with respect to those supplied to the primary loud-speakers in order to prevent localization of the virtual sound image at the nearest loud-speaker to the listener. The delays may be produced in recording and/or by staggering the pick-ups and may be chosen so that for a listener in any position there is no directional effect, or so that at least part of the virtual sound image is localized at the primary loud-speakers 2, 3, 4 which may be arranged to produce a stereophonic effect.
Patent GB-177762-A (GB)
Title: Apparatus for straightening used or distorted nails and tacks to render them suitable for re-use
IPC: B25C13/00
Filed: 1921-12-16
Abstract: 177,762. Zucchi, C. Saligeri-. March 31, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Straightening.- Apparatus for straightening distorted nails or tacks comprises a bed-plate 1, supporting a block 5 trunnioned at 4, and a bar 7 slidable through the block by means of a lever 16. A nail 18 is placed in a V-shaped groove in the block, its head engaging a similar groove in another block 8 secured to the bar 7, and a wedge 14 is pressed down on the nail by means of a lever 13. The nail is then drawn under the wedge by means of the block 8. If the nails are rusty, the wedge and groove may be lubricated.
Patent GB-765132-A (GB)
Title: Pyrophoric lighter
IPC: F23Q2/08
Filed: 1954-11-23
Abstract: 765,132. Pyrophoric-lighters. RACEK, A., and RAGANITSCH, J. Nov. 23, 1954 [March 29, 1954; Aug. 25, 1954], No. 33935/54. Class 75(3) In pyrophoric lighter in which the flint spring is supported at the remote end by a casing part movably connected to the lighter body the arrangement is such that the casing part is pivotally mounted on the friction wheel shaft and the flint spring extends at one end in a flint tube fixed to the lighter body and at the other end projects outside the tube where it is longitudinally guided by a movably mounted guide member and is supported through the intermediary of the guide member on the movable casing part. The flint spring 10 is contained in a tube 11 to press a flint 9 against a friction wheel 7 mounted on a shaft 6 carried by lugs 3 extending from the lighter body 1 and at its remote end is mounted on a tongue 15 bent over from a flange 13 forming part of a slide 14. The slide 14 is mounted in a guideway formed by inwardly turned edges 16 of lugs 5 extending from the lighter body 1. The slide 14 is moved by the spring 10 to the position shown in Fig. 2 by pivoting a member 24 outwardly about the' shaft 6 to disengage the apertured end 25 of the member 24 from the flange 13. A resilient tongue 17 extending from a transverse wall 18 which is rigidly attached to the lugs 5 by lugs 19 which is apertured to hold the tube 11, engages the upper edge of a slot 29 cut in the slide 14 to prevent complete removal of the slide 14. The tongue 17 is apertured at 28 and carries a spare flint 31 which can be removed through the aperture 29 in the slide 14. The slide is outwardly-bulged at 30 to accommodate the spare flint 31. The tube 11 held in position by lugs 4 extending from the lighter body 1 is apertured at 12 at its upper end to facilitate insertion of a new flint 9. The snuffer cap 8 is held in the open or closed position by an arm 23 upwardly biased by a spring 11 mounted around the tube 11 and engaging the transverse wall 18 at.its lower end. The fuel container 2 is removaly mounted in the lighter body 1.
Patent GB-1023237-A (GB)
Title: Viewfinders with long eye relief
IPC: G02B23/14
Filed: 1962-09-05
Abstract: 1,023,237. View-finders; zoom lens systems. EASTMAN KODAK CO. Sept. 5, 1962 [Sept. 5, 1961], No. 33966/62. Heading G2J. An inverted Galilean finder providing long eye relief has a position eye piece 32, Fig. 4 of sufficient diameter that all of a view-defining frame 31 adjoined the negative objective 30 is visible to an eye 13 held at a distance from the eyepiece greater than the separation between the objective and the eyepiece and limit means 34 for identifying to the observer when his eye 13 is substantially on axis. In an alternative, Fig. 13, the negative objective comprises a positive component 50 and a negative component 52 which is movable to vary the magnification. Fixed defining mask 51 is fixed and is visible for all magnifications by an eye 46 through an objective frame 61. In yet another embodiment, Fig. 15, not shown. The negative lens 72 and the eyepiece 73 are movable together, optical data being provided in the Specification for this embodiment and the view-finder of Fig. 13.
Patent GB-656465-A (GB)
Title: Improvements in automatic shaft positioning apparatus
IPC: G05D3/10
Filed: 1947-12-23
Abstract: 656,465. Reciprocating motors. COLLINS RADIO CO. Dec. 23, 1947, No. 34019. Convention date, March 6. [Class 35] [Also in Groups XXXVII and XXXVIII] The driving pawl 45 of a selector is pivoted on a stud 42 carried by a disc 26, Figs. 4 and 5, which forms part of the plunger assembly of a solenoid. The plate 26 and the cover 29 of the solenoid are provided with sloping recesses 33 ... 35 and 30 ... 32 which form housing for balls 36. When the solenoid is energized, therefore, slight axial movement of the plunger produces a considerable rotation to give the driving pawl its working stroke. When the solenoid is deenergized, the normal position of the disc is restored by a spring 37 which is connected between the stud 42 and a pin on the sleeve 48 through which the selector shaft 47 passes.
Patent GB-1355686-A (GB)
Title: Acrylate polymer latices
IPC: D21H17/38
Filed: 1971-07-21
Abstract: 1355686 Alkyl acrylate polymer latexes B F GOODRICH CO 21 July 1971 [22 July 1970] 34119/71 Headings C3P and C3G Aqueous acrylate polymer latexes are prepared by first polymerizing in an aqueous medium at a pH of less than 7 a mixture of 50-99À8% (based on the weight of total monomers used) of at least one C 1 -C 8 -alkyl acrylate or methacrylate and 0À1-10% of a glycidyl ester of an ethylenically unsaturated carboxylic acid or a glyidyl ether containing olefinic unsaturation until at least about 50% by weight of the monomers have been polymerized to form a base polymer, and then overpolymerizing (graft polymerizing) with 0À1-10% (based on total monomers) of an olefinically unsaturated carboxylic acid (or anhydride thereof) containing an olefinic bond in an α,#-position with respect to the carboxyl group or containing a terminal methylene grouping. The glycidyl monomer may be, for example, glycidyl acrylate, glycidyl methacrylate, glycidyl crotonate, glycidyl abietate, glycidyl vinyl ether, glycidyl allyl ether, glycidyl isopropenyl ether, glycidyl methallyl ether or glycidyl butenyl ether. The monomer mixture in the first stage may also contain one or more other monomers, e.g. conjugated dienes, alpha-olefins, vinyl and vinylidene halides, vinyl esters, vinyl aromatic compounds, alkyl vinyl ethers, acrylic, methacrylic or ethacrylic acid and nitriles, amides and N-alkyl amides thereof. Specified acid monomers for overpolymerization are acrylic acid and its α-methyl, α-ethyl, α-chloro and α-cyano derivatives, crotonic acid, # - acryloxy - propionic acid, hydrosorbic acid, sorbic acid, α-chlorosorbic acid, cinnamic acid, #-styryl-acrylic acid, hydromuconic acid, itaconic acid, citraconic acid, fumaric acid, mesaconic acid, muconic acid, glutaconic acid, aconitic acid and maleic anhydride; monomers as used in the first stage may also be added in the overpolymerization step as well as cross-linking monomers such as methylene - bis - acrylamide, ethylene glycol dimethacrylate, diethylene glycol diacrylate, pentaerythritol tetraallyl ether and divinylbenzene. Polymerization can be initiated with conventional peroxide, nitrile and redox catalysts, and may be effected in the presence of an emulsifier, preferably an anionic or nonionic emulsifier. The viscosity of the latexes is considerably increased, simply by raising the pH of the latexes by addition of a base, e.g. an alkali hydroxide, ammonia or an amine. The thickened latexes are useful in impregnating, coating and laminating applications.
Patent GB-1126307-A (GB)
Title: Thermoplastic copolymers and stoving lacquers based on them
IPC: C08F220/12
Filed: 1967-07-25
Abstract: 1,126,307. Coating. BECK KOLLER & CO. (ENGLAND) Ltd. 25 July, 1967 [16 Aug., 1966], No. 34136/67. Heading B2K. [Also in Division C3] Fuel- and corrosion-resistant stoving lacquers comprising A) a melamine-formaldehyde resin etherified with a C 1  to C 6 -aliphatic alcohol and B) an acrylic copolymer containing primary hydroxyl groups and carboxyl groups are applied in the examples to steel plates and glass panes. The particular resin A) employed is an isobutanol-etherified melamine-formaldehyde resin and copolymer B) is a copolymer of methyl methacrylate, hydroxyethyl acrylate and acrylic acid with styrene and n-butyl acrylate, or n-butyl acrylate alone, or n-butyl methacrylate and 2-ethylhexyl acrylate. The solvent medium comprises xylene, isobutanol and, in some cases, n-butyl acetate, and the lacquers may also contain TiO 2 .
Patent GB-386411-A (GB)
Title: Improvements in the manufacture and production of vat dyestuffs of the 1.2-benzanthraquinone series
IPC: C09B3/58
Filed: 1931-12-09
Abstract: Dyes of the 1 : 2-benzanthraquinone series are prepared by treating Bz1 : Bz1<1>-di-1 : 2-benzanthraquinonyls not substituted by halogen in the Bz4-position, or their oxygen-containing reduction products including the ethers and esters obtainable from the latter, with acid condensing agents. Sulphuric acid, chlorsulphonic or suitable metal halides are used as condensing agents: when using aluminium chloride chlorine may enter the molecule during condensation.  Reaction proceeds more smoothly when using the reduction products and in some cases at ordinary temperatures.  The products are probably dibenzoyleneanthanthrenes and are of the same class as those of Specification 362,965.  They may be modified by further halogenation, nitration or oxidation.  The starting materials are prepared by heating Bz1 - halogen - 1 : 2 - benzanthraquinones with copper or mercury; the oxygen-containing reduction products and esters and ethers thereof are prepared by the customary methods.  In examples (1) Bz1 : Bz1<1>-di-1 : 2-benzanthraquinonyl (prepared by treating Bz1-nitro-1 : 2-benzanthraquinone in boiling trichlorbenzene with chlorine and heating the Bz1-chloro with copper powder) is condensed by sulphuric acid at 40-50 DEG  C. or by aluminium chloride in pyridine at 180-185 DEG  C.; or the dimethyl ether of Bz1 : Bz1<1>-di-1 : p  2-benzanthrahydroquinonyl (prepared by boiling Bz1 : Bz1<1>-di-1 : 2-benzanthraquinonyl with zinc dust, soda and toluenesulphonic acid methyl ester in trichlorbenzene) is dissolved in cold sulphuric acid to give the same dyestuff which dyes violet shades on cotton: (2) Bz1-nitro-1 : 2-benzanthraquinone is treated with chlorine in boiling trichlorbenzene until a dichloro derivative is formed which is then heated with copper powder and condensed in sulphuric acid; a bluish-violet dye is obtained; (3) the product of (1) is treated with sulphuryl chloride in nitrobenzene to give a dichloro derivative dyeing reddish-blue shades; by using bromine a bromo derivative is obtained; (4) the product of (1) is treated with pyrolusite and concentrated sulphuric acid at 20 DEG  C.; an oxy derivative which dyes reddish-blue shades is obtained, and which on alkylation, for example methylation, yield a product giving more greenish dyeings; (5) the product of (1) is treated with a mixture of nitric and sulphuric acids at 40 DEG  C.; the product dyes grey shades.
Patent GB-1398907-A (GB)
Title: Crystallizable glasses and glass ceramics
IPC: C03B27/012
Filed: 1972-07-21
Abstract: 1398907 Crystallizable glass OWENSILLINOIS Inc 21 July 1972 [23 July 1971] 34177/72 Heading C1M A thermally crystallizable glass comprises, in weight per cent the balance, if any, consisting of other compatible ingredients; the molar ratio SiO 2 /Al 2 O 3  is 3-6 and the molar ratio Li 2 O/Al 2 O 3  is 0À3-0À9; and the nucleating agent is TiO 2  and/or ZrO 2  (if only one of TiO 2  and ZrO 2  is present, then the agent is present in an amount of 3-6%). The above ingredients preferably total at least 90%, and such glasses may be crystallized to form a transparent glass-ceramic having a high quartz solid solution phase, and a coefficient of thermal expansion of - 12 to +12 x 10<SP>-7</SP>/ C. (0-300 C.). By using the method of Specification 1,398,908, the glass-ceramic formed may have a compressive stress surface layer in its surface to a depth of up to 500 microns, the stress being at least 20,000 p.s.i.
Patent GB-1011373-A (GB)
Title: Record handling apparatus
IPC: G06K17/00
Filed: 1963-08-30
Abstract: 1,011,373. Random access storage for records; statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Aug. 30, 1963 [Aug. 30, 1962], No. 34310/63. Headings G4M and G5R. Information storage apparatus comprises a plurality of storage channels each containing a record member and a pneumatic device adapted to eject a record from a selected storage channel. In Fig. 2 rectangular records 10 are stored in slots 14 formed in a storage member 12. Each slot 14 comprises a shallow rear portion 16 and a deeper forward portion 18 provided with grooves 24 on each side for engaging the edges of the record. If the record is five thousandths of an inch thick the rear portion 16 should have a depth of about six thousandths of an inch, and the spacing between upper and lower walls of forward portion 18 should be at least 0À018 inch, smaller spacing leading to instability when air is blown over the record by the ejector means. The ejector means comprises an air gun 32 adapted to be moved by solenoids (not shown) into a first position, where its nozzle is horizontally displaced from a channel 30 connected to the rear of a slot 14 so that the flow of air across the mouth of the channel 30 causes suction to be applied to the channel, or into a second position adjacent channel 30 so that air pressure is applied to the channel to blast the record 10 out of the storage member. The gun may be movable vertically to select a desired record, but preferably the gun is fixed in the vertical plane and the storage member 12 is movable. The record may be blasted clear of the storage member and after use the leading edge of the record may be fed into the slot 14 by an external feeding mechanism, the suction applied by the gun 32 then drawing the record completely into the storage means. Alternatively, Fig. 6 (not shown), the transducing station may be provided adjacent the storage means and may include a stop so that only part of the record is expelled from a slot 14; no external feeding mechanism is then required. If the record is in the form of a disc, each channel 30 may communicate with its associated rear portion 16 via a plurality of subchannels to apply the air pressure more uniformly along the rear edge of the disc, Fig. 7 (not shown). Another arrangement shown in plan in Fig. 5 allows the height of slots 14<SP>1</SP> to be reduced, and therefore for closer spacing of records in the storage member. The record strip (not shown) has a 45 degrees cut along the rear corner and is fed into the slot by external driving means. The record is driven out of the slot by an air blast applied through channel 30<SP>1</SP> to the cut edge of the strip. The air escapes through a duct 45 to atmosphere so there is little flow over the faces of the strip and consequently little tendency for the strip to vibrate. Specification 1,000,778 is referred to.
Patent GB-1039768-A (GB)
Title: Circuit arrangement to counteract frequency deviations of an oscillator caused by supply voltage changes
IPC: H03L1/02
Filed: 1963-08-30
Abstract: 1,039,768. Transistor oscillator circuits. STANDARD TELEPHONES & CABLES Ltd. Aug. 30, 1963 [Sept. 1, 1962], No. 34451/63. Heading H3T. The frequency of an oscillator is stabilized against supply voltage variation by a varactor controlled by a voltage derived from a bridge circuit containing a reference voltage cell. Variation in supply voltage U B  results in an appropriate variation in the voltage across the diagonal of a bridge containing resistors 8, 9, 10 and a dry cell 11, which voltage is fed via resistors 6, 7 to a variable capacitance diode 5 which corrects the resulting frequency variation. An automatic frequency control circuit 13 may be connected by switch 12. The cell 11 may supply bias for other stages in a radio receiver.