baber/WOPTO huggingface dataset:
Patent GB-725786-A (GB)
Title: Improvements in or relating to arrangements for reducing interference in radio communication systems
Inventor: JACOBSEN BENT BULOW
IPC: H04B7/005
Filed: 1953-10-16
Abstract: 725,786. Radio signalling. STANDARD TELEPHONES & CABLES, Ltd. Oct. 16, 1953, No. 28603/53. Class 40 (5). Relates to systems in which separate communication signals are conveyed over two separate paths by frequency or phase modulation of two respective carriers of slightly different mean frequencies F1, F2, each path comprising a plurality of dual repeaters 3, 4 and in which, when the frequency deviations are small, intermodulation due to two carriers nominally of the same frequency entering the same repeater, produces disturbance of the communication signals. Relates also to similar systems in which two separate similar communication routes are in proximity in at least one region and produce disturbances in a similar way. According to the invention a continuous " dispersal " signal is provided to frequency or phase modulate the outgoing waves at the terminal stations, this signal having a frequency outside the range of the communication signals. In one embodiment, the terminal stations 1, 2 are connected by three dual radio links and repeater stations 3, 4. The alternately used radio carrier frequencies F1, F2 are of the order of 4000 Mc/s. and the communication signals are a frequency division multiplex band of about 2 Mc/s. width, comprising several hundred speech bands. When few channels are in use the carrier deviation is small and, for example, if at station 3, receiving aerial 13 picks up the carrier F1 from transmitting aerial 5 of station 1 and some of the carrier F1 of nominally the same frequency from aerial 12 of station 4, an interference tone is introduced into the west to east path, which will be confined to relatively few'channels, which will thereby be disturbed. In order to avoid this, the band 0 to 4 kc/s. in the communication band is kept free and a modulating frequency of 3.7 kc/s., say, which produces a frequency deviation of about 100 kc./s., is added as a " dispersal " signal to the modulation band. Alternatively random noise sources 31, 33, modulate the transmitters at stations 1, 2 respectively, their outputs being confined to a frequency band of a few hundred cycles per second in the neighbourhood of 4 kc/s. by filters 32, 34 respectively.
Patent GB-261417-A (GB)
Title: Improvements in or relating to aerial bomb dropping apparatus
IPC: F42B10/56
Filed: 1926-11-15
Abstract: 261,417. Popov V. Nov. 16, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Projectiles. - A bomb I intended to be dropped from aircraft is provided with a parachute 2, which opens out when the bomb is dropped, thereby stopping the horizontal speed of the bomb and causing it to fall substantially vertically. After a given time, determined for instance by clockwork, the parachute may be released, or may he overturned to serve as a stabilizer during the fall of the bomb.
Patent GB-391137-A (GB)
Title: A lock mechanism for securely fastening automobile floorboards, and the like
IPC: B62D25/20
Filed: 1931-10-16
Abstract: 391,137. Vehicle bodies. WEIGHELL, H., 19, Wigginton Avenue, Wembley, Middlesex. Oct. 16, 1931, No. 28785. [Class 108 (i).] Floorboards and the like are secured in position in a road vehicle by means of a latch which as shown comprises a metal &c. member A pivoted at B to a fitting C housed in a recess in a frame member H. The latch member A is provided with a rounded end E adapted to enter a recess F in a fitting G recessed into the floorboard &c. I. When the latch is swung upwardly, as shown, the floor board I is released and may be removed.
Patent GB-413533-A (GB)
Title: Improvements relating to pipe couplings
IPC: F16L37/10
Filed: 1933-10-18
Abstract: 413,533. Pipe couplings. DURFEY, O. F., Floefer Street, Darien, Connecticut, U.S.A. Oct. 18, 1933, No. 28819. Convention date, Oct. 18, 1932. [Class 99 (i).] In a pipe coupling of the kind in which pins 12 on a spigot project through slots 18 in a socket and are engaged by cams 20 on a rotatable ring 19, the cylindrical bearing surfaces of the spigot and socket are of a length at least equal to their diameter and the movement of spigot into socket is limited solely by its engagement with the sealing washer 17. The ring is retained on the socket by a bead 31 which is swaged over a flange 30 engaging a recess in the ring. The pins are screwed into the spigot.
Patent GB-1077973-A (GB)
Title: Improvements relating to inorganic polymeric materials
Inventor: HUNTER DONALD NOEL
IPC: C04B35/01
Filed: 1964-07-13
Abstract: A mouldable composition containing Al borate, silicate, or phosphate, and asbestos or a finely divided metal, e.g. Cu, is produced by reacting Al oxychloride with the corresponding alkali metal salt in aqueous solution, and incorporating the asbestos or metal during or after formation.  Chyrstotile asbestos may be impregnated with the oxychloride and added to the alkali metal solution, and/or Cu may be mixed with the ground product.  The composition may be moulded at 200-400 DEG  C. under 5-10 ton/sq. in. pressure to form a hard dense body with a s.g. of 1.9-2.5 g./c.c.ALSO:Al borate, silicate, or phosphate is prepared by reacting Al oxychloride with the corresponding alkali metal salt in aqueous solution.  NaAl silicate is produced in some cases.  Preferably the oxychloride is added to the alkali metal salt, e.g. NaBO2.4H2O, Na2SiO3.5H2O, or KPO3, with vigorous agitation.  The product may be heated at 200-400 DEG  C. under 5-10 tons/sq. inch pressure to form a hard dense body with a s.g. of 1.9-2.5 g./c.c.  Reinforcing material may be incorporated during or after formation, e.g. chrysotile asbestos may be impregnated with the oxychloride; and/or finely divided metal, e.g. Cu may be mixed with the ground product, followed by moulding. X-ray data is given.  Al oxychloride is prepared by passing dry HCl into ether containing Al wire and a little HgCl2 to dissolve the wire, then refluxing while adding water, and distilling off the ether (Example 1), or by passing a current between a cathode of stainless steel and an anode of Al in HCl solution (Example 10).
Patent GB-244440-A (GB)
Title: Improvements in motor vehicles
IPC: B62D31/04
Filed: 1925-11-16
Abstract: 244,440. Brill Co., J. G., (Assignees of Guernsey, C. 0.). Dec. 15, 1924, [Convention date]. Addition to 242,263. Axle structures.-Relates to improvements on the passenger vehicle described in the parent Specification and comprises a vehicle in which the body floor 12, Fig. 1, is below the centre of the road wheels, the rear axle 11 having its central part depressed to pass under the floor.
Patent GB-745274-A (GB)
Title: Improvements in or relating to electric oscillation generators
Inventor: JACOBSEN BENT BULOW
IPC: H03L5/00
Filed: 1953-10-20
Abstract: 745,274. Microwave generator output circuits. STANDARD TELEPHONES & CABLES, Ltd. Oct. 18, 1954 [Oct. 20, 1953], No. 28927/53. Class 40 (8). A rectangular-section cavity resonator 2 excited by a thermionic device 6 is coupled to an output line, e.g. a coaxial line 9, by an attenuator consisting of a length 21 of cut-off waveguide which communicates directly with the inside of the resonator through a central hole in the end wall 4. If the cut-off guide 21 is cylindrical a substantially pure TE 11  mode wave is propagated and a minimum attenuation of 13 db. is necessary before the linear part of the attenuation scale is reached. The attenuation is varied by movement of the output line 9 within the guide 21. To facilitate such movement the line 9 is terminated by a piston 22 having an annular groove 23 into which may be fitted a toroidal contact spring. The cavity 2 may be tuned by means of piston 20. A crystal or similar monitoring device 28 is situated in a short length of cut-off guide 19 which communicates with the cavity 2 either through a side wall as shown or through the end wall 4. Specification 680,986 is referred to.
Patent GB-412470-A (GB)
Title: Process for refining fibres of hemp and other bast fibres such as nettle fibres, flax fibres and the like
IPC: D21C3/26
Filed: 1933-10-20
Abstract: 412,470. Refining bast fibres. PALAZZO, F. C., and PALAZZO, F., 34, Via Montebello, Florence, Italy. Oct. 20, 1933, No. 29065. Convention date, Aug. 10. [Class 120 (i).] In a process for refining bast fibres such as hemp, nettle and flax, the raw fibrous material is first subjected at ordinary temperatures for 4-8 hours to the action of chlorine water containing about 0À25 per cent of chlorine, and is then treated for 1 to 4 hours at 1 to 3 atmospheres pressure with an alkali sulphite solution containing besides 0À5 per cent of sodium sulphite either 0À5 per cent of sodium carbonate or 0À5 per cent of sodium hydroxide, and is finally bleached first in a feebly alkaline hypochlorite solution and secondly in a feebly acid bath of either sodium hypochlorite or potassium permanganate, followed with a dilute solution of sulphurous acid. The bleaching may be effected on a roughly carded product or even on the finished yarn instead of on the fibrous material, the finished yarn being first scoured if saponifiable oils have been added during the spinning operation.
Patent GB-899874-A (GB)
Title: Improvements relating to hydraulic pit-props and like supporting devices
IPC: E21D15/51
Filed: 1958-09-10
Abstract: 899,874. Valves. GUTEHOFFNUNGSHUTTE STERKRADE A.G. Sept. 10, 1958 [Sept. 13, 1957], No. 29081/58. Class 135. A valve unit for an hydraulic pitprop comprises a combined inlet and pressure release valve 9 and a pressure relief valve 13 mounted in an elongated housing 2 having a lateral outlet 20. The valve 9 is opened against a spring 11 by pressure fluid supplied to a nozzle 3 or manually through a hand-lever connected to a lug 15. The valve 13 is mounted on an adjustable and extensible stem 12 and opens when the pressure of fluid passing through openings 20, 18 is excessive.
Patent GB-156969-A (GB)
Title: Improvements relating to adjustable spanners
IPC: B25B13/22
Filed: 1919-11-22
Abstract: 156,969. Adnitt, W. D., and Sprayson, J. Nov. 22, 1919. Wrenches. - In adjustable wrenches of the type in which the movable jaw such as C, Fig. 1, slidable on the shank a of the fixed jaw b is provided with a pawl e engaging serrations d on the shank a, one end of the pawl abutting against a recess in the jaw c and a fingerpiece being provided for releasing the pawl, the fingerpiece g is slidably mounted in the jaw c, is controlled by a spring h, and coacts with a projection i on that part of the pawl abutting against the recess in the movable jaw. The pawl e is pivoted at f within a recess in the jaw c and has a rounded end m fitting within a rounded part of the recess whereby the endlong pressure set up between the jaw c and the pawl e is taken by the end m of the pawl instead of by the pivot pin f. The serrations d, which may be formed on a hardened steel strip let into and secured to the shank a, may be of relatively fine pitch and are inclined so that movement of the jaw c towards the jaw b is not prevented but movement in the reverse direction necessitates depressing the finger-piece g against the action of the spring h to disengage the pawl e. The invention is also shown applied to a pipe wrench in which the pawl and finger-piece are on the other side of a short shank a and an operating-lever having its end formed as a jaw to coact with the jaw b is pivoted to the member c.
Patent GB-249909-A (GB)
Title: Improvements in machines for grinding flat surfaces on metal and like articles
IPC: B24B7/00
Filed: 1924-12-05
Abstract: 249,909. Lund, A. B. Dec. 5, 1924. Addition to 223,946. Flat extended surfaces, surfacing.-The grinding-spindle and its bearings described in the parent Specification are employed with the axis of the spindle in an inclined, or in a horizontal position. The spindles 3a, 3b are counterbalanced by weights 17a acting over pulleys 16b, 16c and pinions 16d, instead of by weighted quadrant, and the spindles are mounted on angularly adjustable bearings C, adjustable on the machine frame A. and counterbalanced by weighted chains C' passing over pulleys C<2>. In an arrangement with the spindle, or spindles horizontal, these are freely supported on the base of the machine, the work table moving between the grinding-wheels. According to the Provisional Specification the work may be carried by a rotary table.
Patent GB-245569-A (GB)
Title: Improvements in plug-in fittings or attachments for inductance coils for wireless receiving or transmitting apparatus, or for other uses
IPC: H01F27/00
Filed: 1924-12-06
Abstract: 245,569. Alston, F. H. Dec. 6, 1924. Plug couplings for inductances &c. A hollow box-like plug and socket carrying member 1, Fig. 1, is formed from sheet celluloid &c., and provided with integral ears 3 which are cemented to the celluloid covering of the inductance coil 3. The box 1 is provided with a plug and socket 6, 7 formed of sheet metal, with tongues 8, 10 secured by rivets 9, 11 or by eyelets to the sides of the box. The ends of the coil are attached to tongues 12 on the plug &c. The plug is a loose fit in a hole 4 in the box, so that it has a slight adjustment about its rivets 9. The socket 7 may also be a loose fit in its hole 5, but preferably is a tight fit so as to prevent opening of the joint in its side. The box may be formed of two side pieces 1<a> cemented to a peripheral member 1<b>, or it may be made from the integral blank shown in Fig. 9. A coil holder may be formed in a similar manner and secured to a base.
Patent GB-410010-A (GB)
Title: Improvements in circuit arrangements for supressing noise in radio receivers
IPC: H03G3/26
Filed: 1933-10-23
Abstract: 410,010. Valve circuits for wireless reception. CROMWELL (SOUTHAMPTON), Ltd., and BROOKE, H. A., 32, Brinton's Terrace, Southampton. Oct. 23, 1933, No. 29314. [Class 40 (v).] A receiver is rendered quiet in the absence of a received carrier by paralyzing the first low frequency amplifier, e.g. the triode portion of a double diode triode V2 in which the diodes provide signal rectification and automatic volume control in known manner, by a voltage derived from a potential divider comprising a resistance R<3> in series with a resistance R<4> shunted by the anode-cathode space of the tetrode portion of a diode-tetrode V<3>. The initial value of the current through V<3> is adjusted by means of a potentiometer P<1> biassing the screening grid. When a signal is tuned in it produces, by the rectifying action of the diode portion of V<3> a negative voltage at the upper end of a resistance R1 and this is communicated via resistance R2 to the inner grid of the tetrode portion of V<3>. The resulting increase in the resistance of V<3> causes the bias applied to V<2> to change to its optimum value. The Specification gives examples of the values of the resistances and condensers employed.
Patent GB-1390387-A (GB)
Title: Computer for processing variable length operands
IPC: G06F9/318
Filed: 1972-06-14
Abstract: 1390387 Computer for processing variable length operands BURROUGHS CORP 14 June 1972 [28 June 1971] 29320/74 Divided out of 1390384 Heading G4A  The description is identical to that of parent Specification 1,390,384, but the claims are directed to a computer for processing variable length operands utilizing a first register for storing a bit address of an operand in a memory and the number of bits to be processed and a second register which is set by acontrol signal to the lesser of (a) the number of bits specified, by the first register and (b) the predetermined maximum number of bits that can be processed in one cycle.
Patent GB-709963-A (GB)
Title: Chlorination of ethylene polymers
IPC: C08F8/20
Filed: 1951-12-14
Abstract: Chlorinated ethylene polymers, if desired, in conjunction with chlorinated high molecular weight polymeric substances are made by subjecting a latex of the ethylene polymer made by emulsion polymerization and optionally a latex of the high molecular weight substance to the action of chlorine.  The chlorination may be effected at elevated temperature and superatmospheric pressure and in the presence of catalysts such as iron chloride, aluminium chloride or iodine, or ultra-violet rays, or organic solvents. The ethylene polymer may be polyethylene, or copolymers of ethylene with vinyl chloride, dichloroethene, fluoroethenes, butadiene or styrene. Specific polymeric substances are polyvinyl chloride, polydichloroethene, copolymers of vinyl chloride and dichloroethane, polystyrene and natural rubber.  The products may be made into films foils and varnishes, e.g. mixtures of chlorinated polyethylene and chlorinated natural rubber, or mixtures of chlorinated polyethylene and chlorinated polyvinyl chloride, containing, if desired, pigments, linseed oil, wood oil, stand oil and alkyd resins.  In examples, latices of polyethylene are made by polymerizing ethylene in aqueous media in the presence of emulsifying agents such as the sodium salt of sulphonated long-chain paraffin hydrocarbons or alcohols, or the acetate of stearyl dipropylene triamine and catalysts such as azo-iso-butyric nitrile alone or admixed with the sodium salt of paraffin sulphinic acid, or a mixture of potassium persulphate, hydrogen peroxide and tributylamine.
Patent GB-808364-A (GB)
Title: Improvements in or relating to the manufacture of shell moulds
Inventor: BAILEY DENNIS FREDERICK
IPC: B22C23/00
Filed: 1955-10-14
Abstract: 808,364. Moulding processes. BAKELITE Ltd. Oct. 12, 1956 [Oct. 14, 1955], No. 29412/55. Class 83 (1). Shell moulds are made by blowing sandresin mix into a cavity between a hot patternplate and a contourplate through holes in the contour-plate, the hot pattern with the shell thereon being removed, and the shell cured while in position thereon. Each opening 16 in the contour plate 13 has a valved diaphragm 20 to stop mix falling through when the blowing pressure is released. The method is said to enable mixes of a resin content of 1¢-2 per cent to be used. Binders such as mineral oil, oleic acid, and vegetable oils such as rape oil and olive oil, may be added to the mix.
Patent GB-823089-A (GB)
Title: Plastic foams
IPC: C08J9/00
Filed: 1956-09-26
Abstract: In a process for the production of uniformly coloured polyurethane foams, a pigment or dyestuff in the form of a paste with a liquid of boiling point not less than 160 DEG  C. is admixed with at least one of the reactants prior to any substantial chemical reaction taking place.  The apparatus described in Specification 769,680 can be employed to effect the mixing, the paste being injected into the mixing zone through a nozzle, preferably simultaneously with but independently of the other ingredients.  Liquids specified are alkyl esters or halogenated alkyl esters of phosphoric acid, glycerine triacetate, benzyl octyl adipate, dioctyl phthalate, esters of the fatty acids obtained by the oxidation of paraffins, aliphatic or aromatic hydrocarbons and halogenated hydrocarbons.  Azo dyestuffs, phthalo-cyanins, indanthrenes and inorganic pigments may be used, a list being given.  The paste can be formed using the dispersion-kneader described in Specification 687,021, [Group II]. Specification 769,682, [Group II], also is referred to.ALSO:In a process for the production of uniformly coloured polyurethane foams, a pigment or dyestuff in the form of a paste with a liquid of boiling point not less than 160 DEG C. is admixed with at least one of the reactants prior to any substantial chemical reaction taking place. The apparatus described in Specification 769,680 [Group IV(a)] can be employed to effect the mixing, the paste being injected into the mixing zone through a nozzle, preferably simultaneously with but independently of the other ingredients.  Liquids specified are alkyl esters or halogenated alkyl esters of phosphoric acid, glycerine triacetate, benzyl octyl adipate, dioctyl phthalate, esters of the fatty acids obtained by the oxidation of paraffins, aliphatic or aromatic hydrocarbons and halogenated hydrocarbons.  Azo dyestuffs, phthalocyanins, indanthrenes and inorganic pigments may be used, a list being given.  The paste can be formed using the dispersion kneader described in Specification 687,021 [Group II]. Specification 769,682 [Group II] also is referred to.
Patent GB-666237-A (GB)
Title: Improvements in apparatus for smoking fish or other foodstuffs
Inventor: SEATON HAROLD LAWRENCE
IPC: A23B4/052
Filed: 1948-11-12
Abstract: 666,237. Smoking fish &c. FRANKURE CO., Ltd. Nov. 11, 1949 [Nov. 12, 1948], No. 29420/48. Class 49. A cabinet for smoking fish &c. has a smoking chamber 5 closed by a door 6, a smoke-box 10, a fan at 26, for circulating smoke in a closed circuit, e.g. via a duct 27, and has e.g. a vent 36 (Fig. 4) opposite a tube 37 in the duct 27, for preventing pressure from increasing in the chamber. Air may be admitted to the bottom of the smoke-box by a duct 14 and smoke may pass from the smoke-box to the chamber through a chimney 20 having a lid 22, which can be closed by turning a knob 24. The chimney may extend coaxially through the end of the duct 27 opening into the chamber. The smoke-box may house a movable sawdust tray, which may have a louvred and perforated cowl coaxial with the duct 14. The Provisional Specification also describes a cabinet having a smoking chamber with a double jacket, smoke being circulated through the chamber and the inner jacket and, afterwards, pumped from the chamber through the outer jacket into a condensing compartment.
Patent GB-209232-A (GB)
Title: Improvements in baby carriages or the like
IPC: B62B7/10
Filed: 1922-10-28
Abstract: 209,232. Neal, H. E. Oct. 28, 1922. Springs, arrangement of; guiding vertical play.-Relates to baby carriages in which the wheel axles are mounted in slots to move vertically relatively to the frame, under the control of spiral springs, and is particularly applicable to folding carriages in which the front and rear axles are carried by members pivoted respectively to the front and rear of, and adapted to be folded against, the frame. The lower end of each spring is secured directly to its axle by threading the axle through a loop on the end of the spring. As shown, the axles 7 are carried by U-shaped members 1 pivoted to the frame, the slots for guiding the axles being formed by securing a bar 3 to each limb 2 of the members 1. The loops on the lower ends of the springs 6 are fixed on the axles by wire clips 10 passed through holes in the axles, which axe prevented from moving transversely in the U-shaped members 1 by collars &c. 9 secured on the axles. The upper ends of the springs 6 are bolted to L- shaped brackets 5 secured to the limbs 2.
Patent GB-254594-A (GB)
Title: Improvements in and relating to storage buildings
IPC: E04H6/10
Filed: 1925-11-23
Abstract: 254,594. East, M. D. Nov. 23, 1925. Warehouses; garages.-A garage or storehouse is formed with the floors arranged alternately so that a portion 6 of one floor 3 overlaps a portion of the floor 9 next below, and runways 7, 8 arranged in pairs are provided, one leading upwards and the other downwards so that the - vehicles travel in the same directions. By this arrangement, a portion of one floor overlaps a portion of the floor next below and storage spaces of sufficient height to store various heights of cars or goods are provided. In a modification, the side platforms 10 are connected by a cross platform 11, Fig. 4.