baber/WOPTO huggingface dataset:
Patent GB-685920-A (GB)
Title: Improvements in the measurement of the proportion of a paramagnetic gas, in particular oxygen, contained in a gaseous mixture
IPC: G01N27/74
Filed: 1950-08-08
Abstract: <PICT:0685920/III/1> <PICT:0685920/III/2> <PICT:0685920/III/3> <PICT:0685920/III/4> In an apparatus for determining the proportion in a mixture or the relative proportions in two samples of a paramagnetic gas such as oxygen or nitric oxide a pulsating non - uniform magnetic field is applied to the gas sample or samples, when the different magnetic susceptibility of two portions of the gas, arising either from a temperature gradient produced by localized heating or from the different paramagnetic gas contents of the gaseous samples, causes a periodic pressure variation the amplitude of which indicates the proportion or relative proportion of the paramagnetic gas present.  In the embodiment shown in Figs. 1 and 2, a permanent magnet 1 is provided with pole pieces 2 and 3 with frusto-conical ends 8 and and 9 thus producing a central uniform magnetic field a with a non-uniform field at either side.  A disc 4, half of which is magnetic, the other half being non-magnetic, is rotated by motor 6 to produce a pulsating magnetic flux across the pole pieces.  A gas sample enters through a capillary 13 and passes through tube 7, that portion of which, which is located in the non-uniform field being locally heated at 10 and out through capillary 13a.  Due to the different susceptibility of the heated and unheated portions an excess pressure in the direction b occurs, pulsating with the same frequency as the applied field and the resulting pressure variations are recorded by the diaphragm capacitor 14, advantageously associated with a voltage variator amplifier as is disclosed in Specification 655,713.  Preferably a symmetrical arrangement (as shown) is employed thus doubling the resultant amplitude in capacitor 14, the fields at 9 and 91 being 180 degrees out of phase.  If two samples are to be compared the fields at 9 and 91 are in phase and the two gas circuits are separate, the amplitude of the vibrations in the capacitor 14 indicating the relative proportion of the paramagnetic gas present in the samples A special embodiment for the latter purpose is shown in Figs. 3 and 4 where one sample enters through pipes 30 and 27, the other through pipes 33, 31, diaphragm capacitor 14 and pipe 28, a common outlet being provided at 29.  No heating is necessary in this case since the pressure variations in this case result from the different susceptibilities of the two samples.  A symmetrical arrangement (as shown) is preferred, with tubes 271, 281 and outlet 291 being provided.  The pulsating magnetic field is produced by a rotating pole piece 23 with a non-magnetic inset 34 which is a parallelogram in cross-section.
Patent GB-1177078-A (GB)
Title: Treatment of Tow
Inventor: STRANG ALASTAIR
IPC: D01D10/04
Filed: 1966-05-10
Abstract: 1,177,078. Textile treating apparatus. COURTAULDS Ltd. 9 May, 1967 [10 May, 1966], No. 20629/66. Heading D1L. In applying a fluid treatment medium to a tow of filamentary material, tow 1 is fed via rollers 2 below the surface of a liquid 4 in a treatment bath 3 and is passed within the treatment bath over at least one slot or series of holes 7 disposed substantially at right angles to the direction of movement of the tow, through which slot or series of holes is fed the fluid treatment medium under pressure, and is removed from the bath 3 via rollers 5. The slots or holes 7 can be provided in curved housings 6 mounted on a perforated plate 8 fitted to a distributing trough 9 having an inlet 10 for pressurised liquid treatment medium. A further set of curved housings 12 with slots 11 may be positioned on the other side of the tow as shown in dotted lines. The housings are preferably formed from a polyacetal resin to resist corrosion in the bath and to resist abrasion by the passage of tow.
Patent GB-531277-A (GB)
Title: A new or improved method of forming a row of electrical contacts between opposite sides of a plate of glass
IPC: H01J5/32
Filed: 1939-07-15
Abstract: 531,277. Uniting metal to vitreous material by heat. INTERNATIONAL TELEVISION CORPORATION, Ltd., NAGY, P., GODDARD, M. J., and BYRON, D. H. July 15, 1939. No. 20632. [Class 36] A row of wires 11 passing through a glass plate 10 and terminating in contact strips 12 is formed by winding a wire in a spiral round a glass core, which may have been cut out from the plate, and then fusing it into the plate, the portions of the spiral at the surfaces of the plate being subsequently removed. Strips of conducting material may then be deposited on the plate by thermal distillation in vacuo with the aid of a stencil. In a modification, the wire 17 (Fig. 3) is wound on a separate support 13a, 13b and then placed in a trough 18 filled with glass rods 19. Other glass rods 20 are placed within the wire spiral and the whole is then fused. The invention is applicable where it is desired to have electrical communication between the inside and outside of a vacuum tube. Specifications 526,742, 526,875 and 528,734, [all in Group XL], are referred to.
Patent GB-499600-A (GB)
Title: Improved system for regulating the output voltage of an alternating current dynamo-electric generator
IPC: H02P9/26
Filed: 1937-07-26
Abstract: 499,600. Automatic control systems ; phase - changing. BRITISH THOMSONHOUSTON CO., Ltd. July 26, 1937, No. 20637. Convention date, July 24, 1936. [Classes 38 (ii) and 38 (iv)] Electromotive force.-The excitation of an alternator is controlled in accordance with a voltage condition of its output circuit by a non-linear resonant bridge circuit which controls a phase shifting circuit impressing an A.C. potential of variable phase upon the grid of a valve controlling an opposing component of excitation applied either to the field circuit or to an auxiliary field winding. Two circuits comprising a resistance 6, saturable inductance 7 and condenser 8 are connected across the terminals of an alternator 2 connected to a circuit 4 and the two junctions between capacity and inductance are connected to a transformer 12. The non-linear circuits are in resonance close to the desired voltage of the circuit 4 but one is arranged to resonate at a slightly different voltage from the other. Thus voltage variations much greater than any occurring in the circuit 4 are adapted to cause corresponding changes in the impedance of two valves 17, 18 connected reversely in parallel in a phase shifting circuit comprising the valves and a reactance 27. This last circuit is supplied by a transformer from any suitable A.C. source and is completed by resistances 32, 33 connecting the junction between the condenser 27 and the high vacuum valves 17, 18 to the mid-point of the transformer secondary 25. A valve 28, preferably containing an ionizable medium, is in series with a resistance 35 and one half of the winding 25 and its average conductivity is varied by any phaseshift produced as a result of voltage changes in the circuit 4, its control grid 31 being connected to the junction of the resistances 32, 33. The arrangement is such that very small progressive increases in voltage in the circuit 4 produce progressive increases in the current in resistance 35, the potential drop in which is opposed to that of a D.C. source 34 supplying the excitation of the machine 2.
Patent GB-573613-A (GB)
Title: Improvements in or relating to elbow and knee joints for artificial limbs
IPC: A61F2/64
Filed: 1943-12-10
Abstract: 573,613. Artificial limbs. HOARE, C. G. Dec. 10, 1943, No. 20689. [Class 81 (ii)] Mechanism for locking the forearm or lower leg of artificial limbs of the kind which comprises a setting member 5 adjustably mounted in the upper limb half and associated with and controlling the movement of the pivot pin 3 of the forearm or lower leg, a locking bolt 6, and an operating member 8 connected to an appendage of the body harness, is characterised by retention means for the locking bolt comprising a control member 10 interposed between the operating member and the locking bolt, and a latch means 14 adapted to co-act with the control member to hold it in a bolt-retracting position. The retention means is inoperative on partial movement of the operating member but is actuated by a movement thereof of greater magnitude, the spring-pressed pawl 14 being raised by a trip 17, and engaging by means of a detent 15 with the intermediate lever 10. The main lever 8 is then free to return to its normal position but on being moved again will trip the pawl 14, release the intermediate lever and allow the bolt 6 to drop into locking position.
Patent GB-205906-A (GB)
Title: Improved method of and apparatus for heating materials
IPC: B01J19/28
Filed: 1922-07-28
Abstract: 205,906. Woodall, Duckham, & Jones (1920), Ltd., and Duckham, Sir A. M. July 28, 1922. Continuous-discharge apparatus.- In heating-apparatus of the kind in which the materials, e.g. those employed in the manufacture of chemical products such as permanganates, are caused to travel through a heated rotating cylinder, the cylinder a is wholly or partly immersed in molten lead or other metal e contained in a stationary bath d. The cylinder is supported at its ends bv means of hollow trunnions b, which are rotated from a shaft m by chain or like gearing l and contain spiral conveyers o for feeding the material into and delivering it from the cylinder, the conveyers o being mounted on a shaft also operated from the shaft m. In the interior of the cylinder a helical blade p is fixed for causing the material to travel through the cylinder in contact with the inner surface thereof. The extent of immersion of the cylinder may be varied according to the weight of the contents so as to minimize the friction on the bearings. In the arrangement shown the bath d is mounted in the flues q of a furnace, the products of combustion entering at r and being discharged by the outlet flue s.
Patent GB-865842-A (GB)
Title: Improvements in or relating to proximity fuses
IPC: F42C13/04
Filed: 1959-06-17
Abstract: 865,842. Radar. TELECOMMUNICATIONS RADIOELECTRIQUES ET TELEPHONIQUES. June 17, 1959 [June 20, 1958], No. 20795/59. Class 40(7) [Also in Groups XXI and XL(b)] A proximity fuse for detonating a warhead when a projectile reaches a predetermined distance from a target comprises means for producing and receiving radio signals to indicate the target distance together with optical means producing a signal when the target is within a given angular location relative to the projectile. Detonation only occurs when the radio and optical signals are received simultaneously by a device in circuit with the detonator. Channels 8, 9, 10, 11 in the fuse, each having a plane mirror on opposed lateral walls, allow beams falling on quartz windows 4, 5, 6, 7 to enter an annular lens 3 and so converge on a photoelectric detector 2. The detector is a lead sulphide cell, whose sensitive layer is kept below 20‹C., responding in the day time to variations in visible light intensity produced by the passage of an aircraft through the region scanned. The detector is also sensitive to infra-red radiation. Fig. 2 shows the lay-out of the signal receivers, the optical system 21 being used to send optical signals to the detector 2, which signals are then transmitted through an amplifier 23 to a coincidence device 40 connected to detonating means 41. The distance of the target is determined from the Doppler effect, using an aerial 31 to transmit and receive radio signals. The aerial is connected to an oscillator 32 by a conductor provided with detectors 34, 35 separated by a quarter of the wave length determined by the oscillator. The detectors are connected to a transformer 36, which transmits signals, indicating a target within 20 metres, to an amplifier 37, which feeds them to the device 40. The output voltage of the device 40, which may contain a plurality of diodes, is used to charge a thyratron in the firing means 41. Transistors may be used in the electrical system, which may be provided with two aerials. The optical system may comprise a source of radiation:
Patent GB-1031104-A (GB)
Title: Improvements in or relating to disposable bed pans
Inventor: KIRBY MICHAEL JAMES
IPC: A61G9/00
Filed: 1964-05-20
Abstract: 1,031,104. Bed pans. REED PAPER GROUP Ltd. April 28, 1965 [May 20, 1964], No. 20861/64. Heading A4N. A disposable bed pan is formed from a single blank of cardboard laminated with a sheet of thermoplastic material and is erected into the form of a rectangular box with flanges 10, 12, 14 so that the device may be supported in use on an apertured frame.
Patent GB-1309127-A (GB)
Title: Photoelectro phoretic imaging system
IPC: G03G17/04
Filed: 1970-04-30
Abstract: 1309127 Photo-electrophoretic imaging XEROX CORP 30 April 1970 [2 May 1969] 20903/70 Heading G2H A photo-electrophoretic imaging system has a member positioned adjacent the nip of the electrodes to suppress electrical arcing. As shown, the member is an electrically biased element 30 which also serves to direct imaging suspension from a tank 24 to the nip of electrodes 1 and 5. In Fig. 4 (not shown), the member comprises a rotating insulating rod (40) which forms a bead of suspension adjacent the nip to suppress arcing.
Patent GB-1240759-A (GB)
Title: Improvements relating to auxiliary vice jaws
Inventor: DEWICK BASIL HUGH
IPC: B25B1/24
Filed: 1969-04-24
Abstract: 1,240,759. Vice jaws. B. H. DEWICK, and J. W. RHODES, [trading as JAB MARKETING SERVICES]. 16 June, 1969 [24 April, 1969], No. 20909/69. Heading B3B. An auxiliary vice jaw comprises a jaw plate 1 for location against the fixed or movable jaws of a vice and a pair of like resiliently deformable portions 6 located one at each end of said plate and extending away from said plate and arranged parallel to one another so that when the jaw plate 1 is placed against a jaw of a vice of suitable dimensions, the portions 6 may be deformed away from one another so as to grip the vice jaw. Top and bottom flanges 9 may also be provided. The jaw may be made from moulded nylon. The portions 6 include projections 8 which may engage depressions in the vice bodies. Grooves may be provided for mounting removable arms at different spacing to enable the jaw to be used on vices of different sizes. The resilient portions may be provided by embedding a leaf or wire spring in the jaw. Magnets or magnetic tape may be disposed in or on the jaw to provide additional grip.
Patent GB-149221-A (GB)
Title: Mounting for vehicle-tanks
IPC: B61D5/06
Filed: 1920-07-12
Abstract: 149,221. Davis Welding & Manufacturing Co., (Assignees of Davis, A., and Betts, A. L.). July 22, 1919, [Convention date]. Tank carts.-In a vehicle tank mounting having sills and bolsters, means are provided for adjustably connecting the sills to the bolsters to enable the cradle to fit varying widths of underframes. The tank 7 rests on a number of composite cradle frames consisting of a wooden block 5 in a channel-iron 4. The cradle block 5 has slots 8 formed lengthwise of the bolster and extending beyond both sides of the sills. U-shaped bolts 9 straddle the channel iron and are secured to angle-iron fittings 10. The centre portion of the channeliron is strengthened by plates 21. Turn straps 16 secure the tank to the cradle, the lower ends of the straps passing on opposite sides of the channel-iron and being screwed up against a stirrup bar 19, which is retained in place by an angleiron 18 fixed to the channel-iron of the bolster. Wood filling-pieces 15 are inserted in the raised portion of the channel-iron and overlap the wood block 5 to which they are secured, the running boards 14 being secured to the filling pieces 15.
Patent GB-1219280-A (GB)
Title: Tractor/trailer vehicles
Inventor: NEVILLE GEORGE EDGAR
IPC: B62D53/08
Filed: 1967-12-16
Abstract: 1,219,280. Fifth wheel couplings. G. E. NEVILLE. 16 Dec., 1968 [16 Dec., 1967; 3 May, 1968], Nos. 57242/67 and 20993/68. Headings B7H and B7T. On a tractor having a pair of steerable front wheels and one or two pairs of steerable rear wheels, all the wheels being operable together and in the same direction, there is provided a fifth wheel coupling having a locking pin 21 which when raised to occupy a socket or arcuate slot 22 prevents or limits pivotal movement about the coupling. The pin 21 is operable from the driver's cab either hydraulically, pneumatically, mechanically or manually. In an alternative embodiment, Fig. 5, the fifth wheel plate is provided with pivotable flaps 24a and 24b which when in their upright position may be abutted by limit stops mounted on a trailer rubbing plate, thus limiting pivotal movement between the articulated vehicles to 15 degrees either side of the in-line position. The flaps are pivoted on shafts 27 and biased by a spring 29 to their in-use positions. A pneumatic, hydraulic or electrical actuator 30 is provided to move the flaps to their out-of-use positions.
Patent GB-860492-A (GB)
Title: Improvements in towing vehicle and trailer combinations
Inventor: CAMPBELL GREGORY
IPC: B62D53/08
Filed: 1958-07-01
Abstract: 860,492. Fifth wheel couplings. ESSO RESEARCH & ENGINEERING CO. April 27, 1959 [July 1, 1958], No. 21006/58. Class 103(5). A fifth wheel coupling part 3 on a tractor is pivoted transversely thereon and has a rear edge 5 which when the uncoupled tractor is backed engages with a forward edge 11 of a coupling part 10 on a tanker trailer. The trailer coupling part comprises ball bearing members 7, 8 and a hollow frame 9 integral with the plate 10, and in the coupled up position a fuel line 12 on the trailer is connected to a line 12a and a pump connection 13 on the tractor. In a modification the frame 9 may form a liquid tight tank and line connections may be mounted thereon.
Patent GB-1396216-A (GB)
Title: Surface hardening of aluminum alloys
IPC: C22C21/06
Filed: 1973-05-03
Abstract: 1396216 Surface hardening of aluminium alloys METAL LEVE-SA-INDUSTRIA E COMERCIO 3 May 1973 [4 May 1972] 21035/73 Headings C7A and C7U The surface hardness of an aluminium alloy containing by weight:- 0À2 to 30% silicon 0À2 to 5À6% copper 0À2 to 6À0% nickel 0À2 to 5À0% magnesium and optionally up to 1À0% iron up to 0À2% titanium up to 1À5% manganese up to 2À0% zinc up to 0À7% chromium the balance being aluminium, is increased to levels between 250 kg/sq.mm and 1,400 kg/sq.mm (vickers) by treatment with a cyanide bath at 450‹ to 550‹C. The bath generally contains potassium or sodium cyanide together with boron oxide or a mixture of sodium hydroxide and sodium carbonate, preferred treatment times are 8 to 12 hours. It is stated that the hardening is caused by the formation of hard particle layers of elemental Si and/or Ni 3 Al and an outer layer of MgAl 2 O 4 .
Patent GB-280655-A (GB)
Title: An improved fastener for fixing handles to broom heads and the like
IPC: B25G3/14
Filed: 1926-08-27
Abstract: 280,655. Priestley, F. A. Aug. 27, 1926. Fixing by separate sockets with toothed holding-devices. - A device for securing handles to broom heads, brushes, mallets, hammers, axes, &c. consists of a cylindrical metal sleeve a formed with top and bottom cutting edges b for trimming the handle and the hole in the stock, raised pips or shoulders c to engage the edge of the stock hole and prevent the device being forced too far therein, and teeth e on V or arch-shaped tongues d cut out of the metal and bent inwardly, such that when the handle is forced into position the teeth are forced into the wall of the stock hole and the backs of the tongues grip the handle. Small holes f between the shoulders c facilitate attachment of the fasteners to a show card for selling purposes and permit the insertion of tacks as a further means of securing the handle. An open joint may be provided along the full length of the fastener. In the modification shown in Fig. 7 the lower rim b is cut away between the tongues at g and a metal plate or plunger h is provided to expand the tongues within the socket of a hard grained stock. Specification 145,880 is referred to.
Patent GB-385235-A (GB)
Title: Process for the production of beryllium fluoride
IPC: C01F3/00
Filed: 1932-07-26
Abstract: In the decomposition of beryl with ammonium fluoride, reaction is effected in a continuous manner, for example in a rotary furnace at 500 DEG  C., using vapours of ammonium fluoride, and the silicon fluoride evolved is treated with gaseous ammonia in a chamber cooled to 150 DEG  C., and the solid compound SiF4.2NH3 deposited together with excess ammonium fluoride.  The mixed solids are passed into water and treated with excess ammonia to recover ammonium fluoride for re-use and give a residue of pure silica.  The mixture of beryllium and aluminium fluorides formed is leached with water to remove beryllium fluoride, and the residue treated with sulphuric acid and silica to liberate silicon fluoride which is added to that produced in the furnace operation and converted to ammonium fluoride, and yield aluminium sulphate.  The neutral ammonium fluoride is heated to give the acid fluoride, the vapour of which is used in the process, and ammonia which serves for the formation and subsequent decomposition of the compound SiF4.2NH3.
Patent GB-722017-A (GB)
Title: Improvements in or relating to a method for the preparation of aqueous suspensions of steroid hormones
Inventor: STUCKEY ROBERT EDWIN
IPC: A61K38/22
Filed: 1951-09-06
Abstract: Aqueous suspensions of steroid hormones are prepared by mixing a steroid hormone containing between 18 and 21 carbon atoms in the molecule, and of average particle size less than 15 m  (obtained by grinding) with a surface active agent and a hydrophillic colloid. Specified hormones are oestradiol monobenzoate, progesterone and testosterone propionate.  Specified hydrophillic colloids are the methyl celluloses, alginates, gelatin and cellulose ethers such as sodium and other water-soluble salts of carboxymethyl cellulose.  The surface active agents are sodium salts of fatty acids having at least 10 carbon atoms, dialkyl esters of sodium sulphosuccisinic acid, aryl alkyl polyether alcohols and their derivatives, fatty acid esters of polyethylene glycols, alkyl ammonium bromides and polyoxyethylene ethers of partial fatty acid (C=at least 10) esters of sorbitans. The kinematic viscosity of the suspension should be between 3.0 and 15.7 centistokes at 25 DEG C. and is preferably near to 30 centistokes.
Patent GB-235433-A (GB)
Title: Improvements in drying apparatus
IPC: D06F58/08
Filed: 1924-09-08
Abstract: 235,433. British-American Laundry Machinery Co., Ltd., (American Laundry Machinery Co.). Sept. 8, 1924. Rotary containers.-Laundry-drying apparatus comprises a series of perforated clothes-containers 8 having threads 28 adapted to engage with the threads of two rotary worms 30 by which the containers are rotated and conveyed through the drying-chamber. The pitches of the threads and the speed of rotation of the worms are such that the containers are rotated rapidly and conveyed slowly through the chamber. The chamber is provided with a steam heating coil 14 and air is admitted into and exhausted from the chamber through openings 10, 12.
Patent GB-224960-A (GB)
Title: Improvements in apparatus for promoting the circulation of liquids enclosed in tanksor other containers
IPC: F22B7/14
Filed: 1923-08-22
Abstract: 224,960. McClelland, N. E. Aug. 22, 1923. Water circulation, apparatus for promoting. - In a water circulator for steam-generators &c. of the type comprising a horizontal or inclined submerged vessel A with inlet and outlet pipes B, C an upward extension or vapour reservoir D is provided which extends above the normal water level and the highest point B<1> of the inlet pipe. The vessel A may comprise several sections bolted together with pipes connected to the end sections and one or more intermediate sections having a vapour reservoir integral therewith or having means for its connection. Specification 194,223 is referred to.