baber/WOPTO huggingface dataset:
Patent GB-608909-A (GB)
Title: Improvements in radio communication systems
IPC: H04B7/12
Filed: 1946-03-02
Abstract: 608,909. Radio signalling. GENERAL ELECTRIC CO., Ltd., BLIGH, N. R., and BLOCH, A. March 2, 1946, No. 6541. [Class 40 (v)] In order to eliminate fading, particularly on short waves, a signal is sent as the lower sideband of one amplitude-modulated carrier wave and simultaneously as the upper side-band of a second amplitude-modulated carrier of higher frequency, reception being affected by simultaneous demodulation of both side-bands. The frequency separation should be greater than the signal band width, but not greater than twice this width. The signal source 1 modulates an auxiliary wave of frequency f1 from a source 2 in a balanced modulator 3, followed by a filter 4 for suppressing the lower side-band and a device 4 for re-inserting the carrier f1. The output from 5 comprising carrier f1 and an upper side-band is modulated on a second source 6 of higher frequency f2 in a balanced modulator 7, thus producing a carrier wave of frequency f1 + f2 with an upper side-band, and a carrier wave of frequency f2 - f1 with a lower side-band, both of which are radiated from the aerial 8. The bandwidth of the receiver 10 is such that it receives both carriers and side bands, and the I.F. stage 11 includes a band-stop filter for eliminating all frequencies between f2 - f1, and f2 + f1. If the frequency f2 is not entirely suppressed, beats will occur in the receiver at frequency f 1 which should be chosen so that those beats can be excluded from the speaker 13 by a low-pass filter. The frequency separation between the two radiated carriers may be reduced by giving f1 a higher value, and inserting a heterodyne frequency-reducing stage between the elements 5 and 7.
Patent GB-1081962-A (GB)
Title: Cryogenic fluid transfer arrangement
IPC: F17C6/00
Filed: 1966-02-15
Abstract: 1,081,962. Refrigerating. HUGHES AIRCRAFT CO. Feb. 15, 1966 [June 29, 1965], No. 6557/66. Heading F4H. In a cryogenic fluid transfer system, for cooling an optically sensitive detector 30 for use in an aircraft scanning system and adapted to maintain efficient heat transfer during tilting, which comprises a finger 18, thermally insulated within an evacuated cavity 16, bounded by a casing 14 and a window 34 and enlarged at one end to form a refrigerant chamber 28, droplets of liquid refrigerant entrained in a gas stream flowing from a refrigerating machine through filler tube 40 retain sufficient kinetic energy to escape from the opening 68, the gas bleeding off through apertures 66, and be collected in a funnel-shaped section 54 of a device 52 supported in a housing 48, from whence they are conveyed by standpipe section 56 to the refrigerating chamber 28. Exhaust tube 44 mounted in a filler and exhaust housing 36 is made of a high thermal conductivity material, e.g. copper. Silver or bronze wire metal shavings 62 dispose the liquid in heat transfer relationship with the heat load 30. A layer of heat conducting material 60 is formed on the insides of the chambers 28 and 44. The housings 36 and 48 are made of brass and the collector and guide device 52 is made of glass-loaded tetrafluorethylene resin. The housings 36 and 48 are sealed by annular seals 46 and 50, respectively.
Patent GB-976612-A (GB)
Title: Improvements in or relating to nipples for nursing bottles
IPC: A61J11/00
Filed: 1963-02-19
Abstract: 976,612. Feeding battle nipples. W. J. STRAUB. Feb. 19, 1963, No. 6563/63. Heading A5X. A feeding bottle nipple comprises a teat 12 and a base member 13 which is convex adjacent the teat on one side and concave adjacent the teat on the opposite side. Ribs 20 on the base member separate the concave and convex portions 17, 16. In use, the teat is placed in the mouth so that the upper lip contacts the convex portion 17 which is disposed forwardly of the concave portion 16 contacted by the lower lip. The side of the teat which is uppermost in use is thicker, more rigid and more convex than the opposite side of the teat and the portion of the teat adjacent the base member is flexible and thin-walled and forms a neck. The nipple is cast in rubber and the base member has a peripheral flange 24 and groove 27 so that it may be secured to a bottle 25 by a screw ring 26.
Patent GB-441171-A (GB)
Title: Improvements in signalling systems
IPC: H03G3/22
Filed: 1935-03-02
Abstract: 441,171. Wireless receiving-apparatus. HAZELTINE CORPORATION, 15, Exchange Place, New Jersey, U.S.A.- (Assignees of Wheeler, H. A. ; 18, Melbourne Road, Great Neck, New York, U.S.A.) March 2, 1935, No. 6631. Convention date, March 9, 1934. [Class 40 (v)] Voltages for automatic amplification control are derived between a point on a high resistance and a point on the high tension supply, the cathode of a diode detector being connected to a point on the supply and the anode to a point on the resistance having the same potential as the cathode in the absence of detector current. Fig. 1 shows a supersonic heterodyne receiver to which automatic control potential is obtained between terminal D and earth using a single tapped high tension source. The control potential is tapped from a high resistance 68, 69 in series with a unilateral conductor 58 connected to two points on the high tension source while diode detector 67 is connected between a tapping on the resistance and a tapping on the high tension source. In a modification, the unilateral conductor 58 is replaced by a resistance and a low resistance potentiometer is used as the tapping on the high tension source, (Fig. 3, not shown). Fig. 4 shows an arrangement in which the diode detector tappings are to points negative with respect to earth. Specifications 293,462, [Class 40 (v)], and 430,787 are referred to. The Specification, as open to inspection under Sect. 91 comprises also a triode operating as an anode bend detector with the anode and cathode connected to tappings on the resistance and battery respectively, Fig. 5 (Cancelled). This subject-matter does not appear in the Specification as accepted.
Patent GB-678815-A (GB)
Title: Light buoys
Inventor: LENOX HUGH
IPC: B63B51/04
Filed: 1950-03-16
Abstract: 678,815. Buoys. BROWN, LENOX & CO. (LONDON), Ltd. April 19, 1951. [March 16, 1950] No. 6652/50. Class 68 (i). In a gas-illuminated marine buoy are provided one or more rectangular containers 7 to receive one or a plurality of gas cylinders G each of which is located therein either by a plate that is suitably apertured to fit over the neck of each cylinder, or by an annular strap 25 having arms 26, or by G-shaped straps, bolted together, which embrace the neck of each cylinder, the plate and straps being anchored to opposed sides or the corners 28 of the container 7. The base of the container is indented to locate the lower end of each cylinder. A recess is formed in one wall of the container to house a connecting piece or valve that leads to the gas supply line of the light and to which each cylinder can be coupled. A watertight cover is provided to each container.
Patent GB-416017-A (GB)
Title: Improvements in and relating to machines for distributing chips, grit and like material over road and like surfaces
IPC: E01C19/20
Filed: 1933-03-04
Abstract: 416,017. Distributers for sand &c. NEWTON, C. M., Church Road, Hennock, Newton Abbot, Devon. March 4, 1933, No. 6676. [Class 6 (i).] A machine for distributing chips, sand, &c. on roads &c. comprises a hopper connected through an adjustable outlet to a distributing chamber furnished with adjustable distributing mechanism comprising a rotatably mounted shaft carrying blades or vanes which passes the material to a transversely disposed and horizontally reciprocating toothed plate or shuffler operably connected to the road wheels of the machine. The hopper 1 and distributing chamber 2 are mounted on a chassis 3 provided with spring-supported road wheels 4, a draw-bar 5, and vertically adjustable castors 6. The hopper has a rear swing flap 1a and an inclined bottom 7 terminating in a shallow trough 7<a> in the chamber 2. The inlet to the chamber is adjusted by shutters 9 independently operated by screw shafts 11, cross shafts 12, worm gearing 13, and a detachable handle 16. The chamber 2 is formed by curved plates 19, 20 mounted between extensions 9<a> of the walls of the hopper l, the plate 20 being provided with teeth 22 and being reciprocated by means of pivoted levers and cams on a rotary shaft 26 driven by disconnectible chain gearing 36. Tapering vanes are arranged helically on the shaft 26, being secured by nuts on threaded shanks passed through the shaft. The bearings of the shaft 26 are adjustable vertically by springs 30 and by rods 32 and levers 33. In the machine described in the Provisional Specification the rotary blade-carrying shaft is reciprocated and there is no reciprocating plate.
Patent GB-1140622-A (GB)
Title: Apparatus for cutting a tow of fibrous filaments
IPC: B26D1/43
Filed: 1967-02-13
Abstract: 1,140,622. Stapling tow. OSAKA KIKO K.K. 13 Feb., 1967 [23 Dec., 1966], No. 6692/67. Heading D1F. In apparatus for stapling continuous filament tow of the type having a pair of cutter rollers of different diameters and upstanding blades extending helically around the rollers with the same pitch, the rollers rotating at the same angular velocity and arranged so that the blades make lateral slipping contact thereby to cut the tow, each roller has an outer surface extending around the roller and which at any point is perpendicular to a radius of the roller passing through that point so that when the lateral surfaces of the blades wear the height of the blades is maintained constant. Strips of rubber are disposed in the grooves formed between the blades. The two rollers are spring pressed together, with one roller being spring pressed along its shaft so that the blades are pressed together.
Patent GB-442052-A (GB)
Title: Improvements in and relating to the removal of incrustation from boilers
IPC: C23G1/04
Filed: 1935-03-04
Abstract: Incrustation in boilers and the like is removed by adding, or subsequently treating with, hydrochloric acid and a compound of arsenic, antimony bismuth or tin.  A film of the nature of a metallic film is thereby formed on the metal surface, and its formation may be improved by various additions such as glue, polyhydric alcohols and their derivatives including sugar, phenols and their derivatives. These additions may be replaced by substances capable of forming them in situ such as fats and oils. Other substances may be added which minimize the rate of corrosion by acids, e.g. alkaline phosphates or chlorides.
Patent GB-622334-A (GB)
Title: Improvements in or relating to parachutes and shrouds therefor
IPC: B64D17/00
Filed: 1947-03-11
Abstract: 622,334. Parachutes. CLARK, D. M. (Taylor & Sons, Inc., T.). March 11, 1947, No.. 6758. Drawings to Specification. [Class 4] To reduce the shock transmitted by an opening parachute and to reduce the swinging movement thereof during descent being transmitted to the parachutist, each shroud comprises an outer casing of thirty-two ends of seven-ply 210 denier interbraided yarn surrounding a core of five to thirty rubber strands of size between number 20 and number 24. The use of such shrouds enables a reduced number to be used with an increase in the size of the sector-shaped lobes of the canopy and an improvement in the ballooning effect thereof.
Patent GB-292888-A (GB)
Title: Improvements relating to water closet seats
IPC: A47K13/16
Filed: 1928-03-05
Abstract: 292,888. Nitsche, W. March 5, 1928. Seat-guards. - A sheet of paper is held on the closet seat by turning down a hinged frame having inner and' outer members a, b, the inner member serving also to cut out the central portion of the sheet.
Patent GB-850792-A (GB)
Title: Improvements in or relating to cable manufacturing apparatus
Inventor: AUSTIN JAMES ALEXANDER
IPC: H01B7/16
Filed: 1956-03-05
Abstract: 850,792. Cables. PYROTENAX Ltd. Jan. 18, 1957 [March 5, 1956], No. 6841/56. Class 36 [Also in Group XXIII] In apparatus for the manufacture of powder-insulated cables comprising a sheath tube N with conductors N<SP>1</SP> mounted in it (such apparatus being similar to that described in Specification 669,781), the hammer has a striker, receiving the blows of the hammer piston and transmitting them to the ram, an aperture in the striker assembly allowing the escape of air from the hammer and hence a cessation of, or reduction in the force of, the blows transmitted unless the ram is operative on the powder and hence urged against the striker. The powder is fed through a hole in the upper part of the ram into its interior and thence through valved ports in the ram (closed when it engages the powder column) into the tube N so that powder is admitted to the tube N when cylinder Q moves the ram upwardly, compacting of the powder by the pneumatic hammer taking place during the downward movement of Q. A friction grip between tube N and a fixed shroud tube P allows the cable to be fed downwardly into a well M when the powder is properly compacted, and the cable may then be drawn and annealed in one or more stages.
Patent GB-656788-A (GB)
Title: Improvements in or relating to a continuous process for the manufacture of lower aliphatic esters
IPC: C07C69/00
Filed: 1948-03-05
Abstract: Lower aliphatic esters are manufactured by continuously feeding the acid and alcohol to be combined into a heated aqueous reaction mixture containing an esterification catalyst, e.g. sulphuric acid, the water constituting a predominating proportion of said reaction mixture.  The proportion of water in the reaction bath is preferably greater than 50 per cent and it is advantageous for the bath to contain the alcohol in a lower proportion than that of the acid, preferably in a concentration of from 5 per cent to 20 per cent.  The reaction is carried out in such a way that the concentration of the ester in the bath does not exceed 5 per cent. The recovery of the evaporated reactants may be effected by known methods.  The vaporized acid may be recovered by submitting the <PICT:0656788/IV (b)/1> vapours arising from the bath to washing by the liquid produced by the condensation of previous vapours in a proportion sufficient to constitute a barrage with respect to the acid vapours but not sufficiently great to permit the formation of an azeotropic mixture of water and ester.  The weight of the washing liquid is preferably between 0.2 and 0.5 times the weight of the vapour escaping from the bath.  In the drawing, an esterification kettle 1 has heating means 2, such as a submerged coil, and an escape conduit 4, for vapours, leading to the lower part of the plate column 3, at the foot of which is a return tube 5, for liquids, communicating with the kettle 1.  At the top of the column 3 is mounted a condenser 6 fed with vapours coming from the column 3 by a tube 71 fitted with a control cock, branching from the vapour take-off tube 7, 8 is a return tube for the condensed liquid.  From the tube 7 a tube 9, provided with a cock, leads to a separating apparatus 13 in which the alcohol is separated from the ester.  A tube 10 leads from the separator 13 to the kettle 1 and allows recovered alcohol to be returned thereto.  11 and 12 are tubes for leading in the acid and alcohol feeds.  In the examples: (1) methyl acetate is prepared by reacting acetic acid and methyl alcohol; (2) ethyl formate is prepared by reacting ethyl alcohol and formic acid; (3) ethyl acetate is prepared by p  reacting acetic acid and ethyl alcohol in the presence of sulphuric acid and water at an elevated temperature.
Patent GB-557541-A (GB)
Title: Improvements in or relating to resistance elements having a high temperature coefficient of resistance
IPC: H03D1/08
Filed: 1942-05-22
Abstract: 557,541. Resistances; wireless receiving apparatus. STANDARD TELEPHONES & CABLES, Ltd., WOLFSON, H., and SHEPARD, S. C. May 22, 1942, No. 7001. [Class 37] [Also in Group XL] A thermistor has its element assembled in an elongated glass bulb with lead - out conductors arranged in a straight line to form a dipole antenna, the length of the conductor being adjusted in accordance with the wave-lengths of the incoming u.f.h. waves to be measured or detected. The lead 1 and the fine wires 7, 8 may be arranged as in Specification 545,679, the wires being welded to lead-out conductors 3, 4 which are sealed through corresponding presses 5, 6 in the ends of the limb 2. Where a coil for indirectly heating the element is provided, the leadout conductors for the coil provide the antenna, the lead-out conductors for the element itself being given a side extension of the bulb, Fig. 2 (not shown). Numerical data are given in the Specification, which refers also to Specifications 540,844, 541,922 and 551,485, [both in Group XI].
Patent GB-1094707-A (GB)
Title: Treatment of fabrics and garments
Inventor: SIMMONS PAUL
IPC: D06M15/693
Filed: 1964-02-20
Abstract: Textile material is water-proofed by treatment with a homo- or co-polybutadiene in perchlorethylene.  Butadiene may be polymerised in hexane at 60 DEG C using butyl lithium as catalyst. It may be copolymerised with isoprene, chloroprene, styrene, vinyl toluene, or divinyl benzene.  The solution may also contain wax, resin, alkyl titanate, or oxy aluminium stearate as further water-proofing agents. 0.1-1.0% of polybutadiene and 0.3-1.5% of further agent may be deposited.  The textile material may be treated after washing with pure perchlorethylene as dry cleaning solvent, then spin dried, and finally dried by the passage of warm air.
Patent GB-938701-A (GB)
Title: Improvements in and relating to silicone rubber compositions
IPC: C08L83/04
Filed: 1961-02-27
Abstract: A silicone rubber-forming composition comprises (A) a linear, essentially diorganosiloxane polymer of the formula <FORM:0938701/IV(a)/1> wherein each R is a monovalent hydrocarbon (saturated or unsaturated), halohydrocarbon or cyanoalkyl radical and n has an average value of 1,99 to 2,01, (B) a reinforcing inorganic filler having a maximum average particle size of 1 micron and a minimum surface area of 100 square metres per gram, and (C) an epoxide compound in a proportion of 0,05 to 10% by weight of polymer (A). Fillers (B) specified are silicas (fume, aerogel, xerogel and naturally occurring), oxides of Al, Ti and Fe and C blacks. Compounds (C) disclosed are low molecular weight hydroxyl-containing epoxide resins or epoxide varnish raw materials; reaction products of a polyhydric phenol and a polyfunctional epichlorohydrin or polyepoxide; ethers containing epoxide groups; and organosilicon compounds containing epoxide groups, as disclosed in Specification 834,326. To secure the desired cure, a vulcanizing agent may be added, such as an organic peroxide or a metal carboxylate together with an ortho- or polysilicate or an alkylhydrogensiloxane, as disclosed in Specification 841,825. Conventional additives may also be added. In a typical example (1) a mixture of a hydroxy-terminated methylphenyl-, dimethyl-, vinylmethyl-siloxane copolymer, fume silica, wet process silica, the reaction product of allyglycidyl ether with bisphenol-A, and dichlorobenzoyl peroxide, was prepared by milling and stored; after 4 weeks the mixture was readily milled and could be sheeted, extruded etc.; a sheet of the mixture was vulcanized at 155 DEG C. for mins. to yield an elastomer. Uses: As gasketing, tubing, sealing, extrusions, mouldings, prosthetic devices, sheeting and insulation.
Patent GB-569064-A (GB)
Title: Improvements in or relating to the manufacture of liquid containers
IPC: B64D37/02
Filed: 1940-04-19
Abstract: 569,064. Making liquid containers. SHAKESBY, L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 19, 1940, No. 7112. [Class 69 (i)] A collapsable former or jig for use in making flexible fuel &c. containers for aircraft &c., comprises a number of strip, block or lath like frame members hingedly or detachably connected together and adapted to form a substantially rigid and continuous supporting surface for at least part of the container envelope. The former may be adapted to be collapsed and removed through a small aperture in the envelope, and to be re-inserted and re-erected. In Fig. 1, laths 2 are secured to a strip of fabric 3 by adhesive ; the end laths 2 and the ends of the strip 3 are pierced for connection by lacing 6. A skeleton supporting frame comprises rib members 7, 8, spaced by transverse spars 9 held by dowels, the rib members 7, 8 each comprising two parts 10, 11, joined at their ends by plates 14 inserted in slots. Where grooves &c. are required to accommodate structural members, the rib members 19, Fig. 5, of the skeleton frame are correspondingly formed and held to adjacent laths 2 by hooks 23 and eyes 22. In Fig. 6, wedged members 24, numbered to facilitate erection, are connected by tongues and grooves, or by dowels, or by members 25 secured by screws etc.; a skeleton frame may also be provided. Specification 569,065 is referred to.
Patent GB-820871-A (GB)
Title: Improvements in or relating to cooling electric locomotive starting rheostats
IPC: H01C1/082
Filed: 1956-03-07
Abstract: 820,871. Electric locomotives. TREBIN, V HES. J., and ZAVODY, V. I. LENINA NARODNI PODNIK. March 7, 1956 [March 9, 1956], No. 7148/56. Class 79(3) In an electric locomotive having the traction motor starting rheostats 9 supported by a frame 8 the frame is formed by two parallel troughs 25, 34 between which is a covered portion 28 housing the rheostat supply cables 31, the rheostats 9 being mounted over the troughs 25, 34 which are connected to cooling air conduits 1, 20. As further shown the frame 8 is connected at 23, 35 to vertical pillars 24, 36 of the locomotive. The rheostats are mounted by insulators 12 over the frame 8. The end of the troughs 25, 34 are flanged at 2. 19 for connection to the conduits 1, 20. The air in the troughs is deflected by plates 7 to cool the resistances 9. The air is exhausted through openings 5, 11, 17 in a roof member 4 connected to lateral roof members 21, 39. Supported by frame bracing members 32 are wooden clamps 29 carrying the supply cables 31 which lead to terminals supported by insulators 13 and connected to the resistances. The portion 28 is closed on the underside by a removable cover 37.
Patent GB-691150-A (GB)
Title: Reflection density attachment for photo-electric densitometers
IPC: G01N21/47
Filed: 1951-03-30
Abstract: 691,150. Photo-electric densitometers. GENERAL ANILINE & FILM CORPORATION. March 30, 1951 [April 4, 1950], No. 7438/51. Class 40 (iii). The density of a sample as measured by reflection from its surface is determined by a photo-cell mounted in a hinged arm, the arm pivoting into contact with the top surface of a block placed over the specimen, the block carrying in it light sources to irradiate the specimen and a passage for guiding the reflected light to the cell. An example of such a pivoted cell arrangement is shown in Specification 601,465. As shown, the arm 35, the hinge of which is not shown, carries the photoelectric cell receiving light reflected from the specimen 36 through tubes 22 and 30, lens 31, prism 32 and apertures 34 and 10. The end cover 11 of the tube fits closely into a resilient light-excluding grommet 37 in the cell-carrying arm. Diagonal straps 24 having an aperture 27 hold the surface of the sample (possibly a photographic image) flat. The surface of the sample is irradiated by four light sources 20 called " pencil flashlight lamps ". The lamps are evenly spaced and are inclined at 45 degrees to the plane of the sample. A strip carrying a number of filters may be put in the slot 14 the correct filter being adjusted into the light path from outside the block.