baber/WOPTO huggingface dataset:
Patent GB-944203-A (GB)
Title: Fire-fighting apparatus
IPC: A62C5/00
Filed: 1961-12-19
Abstract: 944,203. Fire extinguishing. SAFETY DEVELOPMENT CORPORATION. Dec. 19, 1961 [Aug. 8, 1961], No. 45474/61. Heading A5A. [Also in Division B1] A foam forming generator 54, Fig. 2, of the type described in Specification 908,741 and consisting of a wind tunnel with a fan at one end and at the other a mesh screen over which is sprayed foam forming solution, has a non-rigid expandable foam discharge tube 58 which may be made of woven fabric. As shown, the generator is mounted on a vehicle 56 and the tube conducts foam through a window 62 or other opening in a building 60 for firefighting purposes; the tube is expanded by the foam and seals against the opening. The tube may be made in sections connected together as at 59 by a sliding clasp fastener. In a modified form as shown in Fig. 8 the generator is mounted on steel wheels 76 and has a handle 78; the frame 70 which houses the foam-forming screen is connected by a flexible conduit 80 with the blower housing 68. The frame 70 is supported by extensible columns 88 which engage the floor 74 and roof of a mine gallery; the cross section of the flexible foam discharge tube 110, when inflated, is greater than that of the gallery. The foam forming solution may consist of 30% active ammonium lauryl sulphate dissolved in water in proportion about 15% active material by weight to give a concentrate which is further mixed with water at a rate of about 3% by volume. For a 1000 to 1 expansion ratio the velocity of the foam in tube 58 should preferably be about 750 feet per minute.
Patent GB-1364894-A (GB)
Title: Surface elastic wave devices
IPC: G10K11/36
Filed: 1972-09-11
Abstract: 1364894 Surface wave devices GENERAL ELECTRIC CO Ltd 11 Sept 1972 [30 Sept 1971] 45594/71 Heading H3U A surface elastic wave device includes a ferromagnetic or ferrimagnetic film 2 having magnetoelastic and/or elastic anisotropy and traversed by a magnetic field in the direction 8. Consequently the surface waves from transducer 4 to transducer 5 are more greatly attenuated than those following the reciprocal path 5#4, and the effect is used to form delay lines, filters, or u.h.f. isolating devices immunized against the deleterious effects of surface wave reflections from the output to the input transducer, or from the edges of the device. Reversal of the magnetic field reverses the sense of the most attenuated path. Construction.-A base 1 of non-magnetic crystalline gadolinium gallium garnet supports ferromagnetic film 2 of yttrium-iron-garnet, formed epitaxially, doped with gallium if required to reduce the saturation magnetization, having isotropic elastic and anisotropic magnetoelastic properties, and disclosed crystal orientation with respect to the device as a whole. The film 2 supports acoustic surface waves, interdigitated metal film electrodes 4, 5 being supported on zinc oxide piezoelectric layer 3, provided all over film 2, or adjacent the transducers only. The magnetic field may be provided by a permanent, or electromagnet, or may be provided by the film 2 itself. Dimensions are given for a 200 MHz operating frequency. The attenuation effect may be due to the interaction of the surface wave with either bulk or surface spin waves.
Patent GB-1511977-A (GB)
Title: Separation of air
IPC: F25J3/04
Filed: 1976-11-03
Abstract: 1511977 Air rectification LINDE AG 3 Nov 1976 [19 Dec 1975] 45637/76 Heading F4P In a two-stage air rectification, cleaned compressed feed air, prior to cooling in reversing exchangers 1, 1<SP>1</SP> or regenerators, is divided into two portions at 7, one portion being further compressed at 5, cooled and at least partly liquefied at 4 in heat exchange with vaporizing liquid oxygen product withdrawn from the 1.p. stage 3 of column 2, 3, and fed to the column. The compressor 5 is driven by a gas stream expanding in turbine 6 after withdrawal from h.p. stage 2 and warming in exchangers 1, 1<SP>1</SP>. After expansion the gas stream may befed into 1.p. stage 2, Fig. 2 (not shown). The further compressed portion of the feed air stream may be additionally cleaned by passage through a molecular sieve (17) prior to cooling.
Patent GB-1206686-A (GB)
Title: Hydraulic motor drive
IPC: F15B11/024
Filed: 1968-09-30
Abstract: 1,206,686. Hydrostatic transmission control. CASCADE CORP. 30 Sept., 1968 [3 Nov., 1967], No. 46340/68. Heading F2D. [Also in Division G3] In a hydrostatic transmission for a loadhandling apparatus of a truck wherein a pump 70 supplies pressure liquid through a reversing valve 74 to parallel motors 38, 40 driving a common output shaft 44, a pressure-sensitive valve 52 cuts the pressure liquid supply to the motor 38, which is permitted to freewheel, when the supply pressure is below a predetermined value for high-speed, low-torque drive by the motor 40 alone and connects the motor 38 to the pressure liquid supply when the supply pressure exceeds the predetermined value for low-speed, high-torque drive by both motors in parallel. The pressure-sensitive valve 52 has a slidable valve spool 142 biased by springs 154, 156 to a central position in which it blocks the pump supply and return ducts 58, 60 and interconnects the ducts 54, 56 to the motor 38 which is therefor permitted to freewheel. When the pressure in the duct 58 (or 60) attains a predetermined value it opens a ball valve 166 (as 170) and acts through ducts 130, 116 (as 132, 120) on the left (or right) end of the valve spool 142 and moves the spool right (or left) to interconnect ducts 58, 54; 60, 56, whereupon both motors operate in parallel.
Patent GB-928709-A (GB)
Title: Caster
IPC: B60B33/00
Filed: 1961-12-28
Abstract: 928,709. Castors. A. F. OLIVA. Dec. 28, 1961 [Dec. 28, 1960; Dec. 2, 1961], No. 46384/61. Class 52 (1). A castor has a hemispherical part 2 with socket 3 for swivel pivot stem 1 and a socket 4 for pin 6 embedded in a hemispherical rolling part 5, the castor being of plastic and part 2 having reinforcing ribs 4<SP>1</SP> and a peripheral rib 8 which engages in a groove 9 in part 5. A rubber tread 10 is embedded in the surface of part 5. A modification, Fig. 4, constitutes a twin castor.
Patent GB-1142863-A (GB)
Title: Improvements in or relating to excavating equipment
Inventor: WEBSTER FREDERICK
IPC: E02F3/20
Filed: 1965-11-03
Abstract: 1,142,863. Earth and mineral - excavating machines. WEBSTER EQUIPMENT Ltd. 25 Oct., 1966 [3 Nov., 1965], No. 46628/65. Heading E1F. An excavator assembly comprises a mount 3 for securing to a tractor, a hydraulic motor incorporated in the mount and receiving, when the mount is secured on the tractor, pressurised hydraulic fluid from a source on the tractor to drive a shaft 8 rotatably supported in the mount to carry beyond one side of the mount a cutter drum or digger wheel 9. The mount preferably comprises a pair of laterally spaced, articulated, ram-adjusted arms 5,7 having a motor and gearing for driving the shaft 8 in the outer member 7 of each arm. The shaft 8 extends between, through and outwards of the outer members 7. The digger wheel or cutter drum may be so associated with either end of the shaft 8 as to rotate about the axis of the shaft 8 or about an axis at right angles to axis of shaft 8.
Patent GB-1300030-A (GB)
Title: Antifoam composition
Inventor: HOUSEHOLDER KERMIT WILLIAM
IPC: C08L71/02
Filed: 1971-10-07
Abstract: 1300030 Polysiloxane - polyoxyalkylene antifoam compositions for latexes DOW CORNING CORP 7 Oct 1971 [17 May 1971] 46712/71 Headings C3P C3R and C3T An antifoam composition, particularly effective in latexes, comprises (1) 5-50 wt. per cent of a polyoxyalkylene polysiloxane of the general formula wherein x has an average value 6-420, y has an average value 3-30, and G is a radical -D(OR) z A, where D is an alkylene radical, R is an ethylene, propylene or butylene radical, z has an average value 10-100, the C : O ratio in (OR) z  is 2À3-2À8 : 1, and A is a terminal group, (2) 5-50 wt. per cent of polypropylene glycol of molecular weight 1000-2000, (3) 5-50 wt per cent of a glycol copolymer wherein a and b have average values such that the molecular weight is 2000-3000, D<SP>1</SP> is a C 1-16  alkylene radical, m is 0 or 1, and R<SP>1</SP> is a terminal group, and (4) 40-85 wt. per cent of water. In examples such a composition is added to styrene-butadiene and acrylonitrile-butadiene rubber latexes.
Patent GB-1077918-A (GB)
Title: Process for the production of ethylene
IPC: C10G9/16
Filed: 1965-11-04
Abstract: Ethylene and/or propylene are obtained by pyrolysis of a gas containing ethane and/or propane by mixing with steam and pyrolysing in an indirectly heated pyrolysis zone to convert at least 50% of the ethane and at least 85% of the propane, withdrawing at a temperature of at least 1500 DEG  F. after not more than 1 second and cooling to below 1000 DEG  F.  Preferably there is added to the feed 50-1000 p.p.m. of sulphur and pyrolysis is effected in a tube of 3-6 inches outside diameter to which is applied 20,000-40,000 B.T.L.U./hr./sq. ft.  Coke may be removed periodically by passing only steam through the tube at at least 1800 DEG  F.
Patent GB-1299419-A (GB)
Title: Electric dry shaver
IPC: B26B19/00
Filed: 1971-10-08
Abstract: 1299419 Dry shavers SPERRY RAND CORP 8 Oct 1971 [30 Dec 1970] 46968/71 Heading B4B An electric dry shaver comprises a cutting head 17 mounted on a support means 64 so as to be mountable by an actuator 96 from first position in which the cutting head is in engagement with a drive means 39 to a second position in which the cutting head is disengaged from the drive means. The support means comprises a frame 64 having side flanges 67 to retain the cutters 52 and formed as combs 61. Leg portions 69, 70 are formed with slots 88, 90 for engagement with lugs 83 formed on an actuating plate 76. The plate is provided with slots 78 for co-operating with guide bosses 79  and with an extension arm 92 for an actuating button 96. The leg portions 69, 70 are guided in shallow recesses 72 formed in the walls 13, 14 of the shaver so that by raising the button the support is moved to the extended position shown in Fig. 5. In this position the cutters are disengaged from drive arms 39, Fig. 3 coupled to a motor 27 and the cutters may be cleared by means of a brush. In a modification, Fig. 7, the frame 110 is formed with legs 114, one of which is provided with an extension arm 31 formed with a slot 132 for engagement with a pin 134 on an actuating button 135. A detent device 137, 138 is provided for retaining the cutters in the extended position.
Patent GB-1024294-A (GB)
Title: Improvements in or relating to load handling pallets
Inventor: HOWE THEODORE
IPC: B65D19/00
Filed: 1962-12-13
Abstract: 1,024,294. Load handling pallets and slings. T. HOWE & SONS Ltd. Dec. 12. 1963 [Dec. 13, 1962], No. 47034/62. Heading B8H. The lengthwise structural members 2 of a pallet are rigid and the cross-wise members 4 are telescopic. To adjust the width a detachable handle 12 rotates a screw 10 to vary the width between the full and broken line limits indicated. The maximum width is limited by stops 18, carried by one of the longitudinals 2 on one side, engageable with a longitudinal strut 16 fixed relative to the longitudinals 2 on the other side. When retracted, the pallet is held rigid by a latch 20. Load boards may be mounted on the support members 6. To adapt the pallet for slinging, laterally projecting lugs 24, Fig. 2, are provided. These are retracted when the pallet is stowed.
Patent GB-1221372-A (GB)
Title: Process for production of vapour permeable sheet-like materials
IPC: D06N3/00
Filed: 1968-10-04
Abstract: 1,221,372. Laminates. TORAY INDUSTRIES Inc. 4 Oct., 1968 [13 Oct., 1967], No. 47150/68. Heading B5N. [Also in Division B2] A laminate is produced by forming a vapour permeable sheet-like material by coating a solution of film-forming polymeric material on to a support material, applying to the socoated surface a gas stream flowing at a speed in the range of from 1 m/sec. to 50 m/sec., thereafter subjecting the polymeric material to a coagulating treatment with a liquid containing a non-solvent of both the support material and the polymeric material, the gas stream being so applied that a dense gelated layer is formed on the surface by the subsequent coagulating treatment, removing the solvent from and drying the polymeric material, and either larninating an artificial leather substrate to the coating and stripping off the support material; or stripping the film coating from the support material and laminating the film to an artificial leather substrate. The artificial leather substrate may be a needle punched nylon fibre web soaked in butadiene-acrylonitrile and coated with a polyurethane adhesive. The coagulation treatment may be effected by immersing the coated material in a liquid e.g. water, the liquid being at least partially miscible with the solvent e.g. dimethyl formamide, dimethyl sulphoxide, dioxane, dimethyl acetamide, tetrahydrofuran, γ - butyrolactone, pyrrolidone, or cyclohexanone, used in the film-forming polymer solution but being a non-solvent for the polymeric material. The gas stream may be applied for at least 5 seconds; the gas may be air, nitrogen or carbon dioxide. The film-forming polymer may be a polyurethane; polyamide e.g. nylon; polyvinyl chloride; a copolymer of vinyl chloride e.g. with vinyl acetate, methyl vinyl ether, acrylates; or a mixture thereof. The support material may be a woven fabric e.g. a nylonrayon flannel; non-woven cloth e.g. needle punched nylon fibre web soaked in butadieneacrylonitrile, or polyester fibre web soaked in polyurethane; knitted fabric; paper; plastics film e.g. polyester film; metal foil; or the inner layers of hides from split natural leather. The coating may be applied by doctor blade, reverse roll, curtain, slit die, casting boxes or dip-coaters.
Patent GB-1401926-A (GB)
Title: Surveillance systems
IPC: H04N7/18
Filed: 1973-10-10
Abstract: 1401926 Television TEXAS INSTRUMENTS Inc 10 Oct 1973 [3 Nov 1972] 47336/73 Heading H4F A charge transfer device imager 10 is exposed to light from an object, the resulting signals being read-out, under control of clock pulses, and written in to a charge transfer device delay line 12. When the imager 10 is subsequently exposed to light from the object the resulting signals from 10 are read-out simultaneously with read-out of the signals from delay line 12, differences between corresponding bits in these two frames being detected by difference networks 18. Detection of differences between successive frames may cause only these differences or the bits which have changed to be transmitted; alternatively difference detection in a surveillance system may cause a monitor to be switched on, the monitor receiving signals from a buffer (69, Fig. 3, not shown) connected to imager 10.
Patent GB-1016728-A (GB)
Title: Simultaneous polymerization and forming of lactams
IPC: B29C39/00
Filed: 1963-12-03
Abstract: A method of making polylactam articles by polymerizing a lactam in a mould in the presence of an anionic catalyst and a promoter or initiator comprises starting the polymerization before or after charging the reaction mixture in the mould and when the viscosity of the polymerization mixture has increased but before polymerization is completed, deforming the mixture with a die in the mould into the desired shape and then completing the polymerization while maintaining the mixture in said shape. Specified lactams are e -caprolactam, oenantholactam, caprylolactam, decanolactam, undecanolactam, dodecanolactam, pentadecanolactam, hexadecanolactam and cyclic hexamethylene adipamide and mixtures thereof.  Specified catalysts are the alkali and alkaline earth metals and hydrides, borohydrides, oxides, hydroxides, carbonates and organometallic derivatives thereof, Specified promoters and initiators are organic isocyanates, ketones, acid chlorides, and anhydrides and N-substituted amides.
Patent GB-1530804-A (GB)
Title: Derivatives of 1-(p-bromophenyl)-1-(3-pyridyl)propene and propane
IPC: C07D213/55
Filed: 1975-11-20
Abstract: The Z-isomer of 3-(4-bromophenyl)-N-methyl-3-(3-pyridyl)-allylamine of the formula (I) <IMAGE> or one of its pharmaceutically acceptable acid addition salts exhibits a highly selective inhibitor action on the neuronal uptake of 5-hydroxytryptamine and can be used as an antidepressant or neuroleptic. The said compound is prepared by dehydrating a compound of the formula (II) <IMAGE> and recrystallising the resulting stereoisomer mixture repeatedly from a solvent in which the two E- and Z-isomers show a substantially different solubility. The pure Z-isomer is isolated. The dehydration is preferably carried out with sulphuric acid, hydrochloric acid, phosphoric acid, potassium hydrogen sulphate or oxalic acid, especially by heating, or by catalytic dehydration by treatment with kaolin, mineral alumina or aluminium oxide, especially at a temperature of 300 to 500 DEG C. Preferably, the compound of the formula (I) is recrystallised three times as the oxalate from ethanol.
Patent GB-1285689-A (GB)
Title: Benzodioxan derivatives
Inventor: JONAS R
IPC: C07D319/20
Filed: 1970-10-09
Abstract: 1285689 Benzodioxan-derived aminoketones MERCK PATENT GmbH 9 Oct 1970 [27 Nov 1969] 48086/70 Heading C2C The invention comprises compounds of formula and their acid addition salts, wherein R<SP>1</SP> is H or Cl; R<SP>2</SP> and R<SP>3</SP> are each H, F, Cl, Me, OH or OMe, or R<SP>2</SP>R<SP>3</SP> is -OCH 2 O-; and R<SP>4</SP> ,  R<SP>5</SP>, R<SP>6</SP> are each H or Me. In examples, these compounds are prepared by (1) reacting a 2-benzo dioxarylmethylamine with a (possibly substituted) vinyl-phenyl or 2-chloroethyl-phenyl ketone, or with CH 2 O + an acetophenone; (2) reacting a 2 - (2 - benzodioxorylmethylamino)propionic acid or its acid chloride with C 6 H 4 R<SP>2</SP>R<SP>3</SP> (in presence of polyphosphoric acid or AlCl 3 , respectively), or its nitrile with BrMgC 6 H 3 R<SP>2</SP>R<SP>3</SP>; (3) methods involving such standard procedures as N- or O-methylation hydrogenation, reduction of a corresponding imine, oxidation of a corresponding -CHOHC 6 H 3 R<SP>2</SP>R<SP>3</SP> compound, and hydrolysis of a corresponding ethyleneketal or of an acetoxybemoylethylaminomethylbenzodioxan. Pharmaceutical and veterinary compositions for oral, parenteral or topical application comprise compounds of the above formula, which have psychotropic activity such as sedative, tranquillizing, neuroleptic, narcotic potentiating and/or muscle-relaxing or antidepressant activity.
Patent GB-978209-A (GB)
Title: Apparatus for measuring the energies of neutrons
IPC: H01J47/12
Filed: 1963-12-05
Abstract: 978, 209. Detecting neutrons. KERNFORSCHUNGSANLAGE JULICH DES LANDES NORDRHEIN-WESTFALEN-E.V. Dec. 5, 1963 [Dec. 6, 1962], No. 48131/63. Heading G6P. An apparatus for measuring neutron energies comprises a neutron detector surrounded by a moderator, and a removable threshold neutron absorber mounted between the moderator and the detector. The threshold neutron absorber absorbs all neutrons converted by the moderator which have an energy of 0. 4 ev or less. In use, two counts are taken, one with and the other without the threshold neutron absorber fitted; the ratio of the two counts is dependent on the average energy of the neutron flux around the apparatus. Absolute values for the energy may be obtained by calibrating the instrument from a neutron stream of known energy. The detector D is filled with boron trifluoride and is secured to a handle H; it is surrounded by two aluminium jackets G1 G2, which contain a paraffin wax block P coated with a cadmium layer C. The removable threshold neutron absorber A of cadmium fits removably between the detector and the inner jacket.
Patent GB-1136433-A (GB)
Title: Improvements in or relating to waveguide assemblies
IPC: H01P1/00
Filed: 1966-10-28
Abstract: 1,136,433. Waveguide attenuators; phaseshifters &c. ALBISWERK ZURICH A.G. 28 Oct., 1966 [8 Dec., 1965], No. 48410/66. Heading H1W. A lossy, dielectric, or ferrite member forming part of an attenuator, phase-shifter, or coupling probe, is supported within a waveguide by a wedge-shaped bar spring-urged to mate with and hermetically close a corresponding wedgeshaped slot formed in the waveguide wall and narrowing in the direction of the interior of the waveguide, whereby the bar, by sliding movement along the slot, permits displacement of the member within the waveguide, which may be filled with a gas under pressure. Member 14 is supported within waveguide 1 by the engagement of projections 13 in corresponding cavities in wedge-shaped bars 5 which are urged by springs 10 into slots 4 formed in the upper and lower walls 2 and 3 of the waveguide, the ends of the bars abutting against the side-plates 6 and 7 of an outer framework to which the springs 10 are secured. Operation of a pair of oppositely disposed screws 11 moves the outer framework, and hence the member 14, transversely with respect to the waveguide. In a further embodiment (Fig. 2, not shown) a similar arrangement is employed to move a coupling probe along the central limb of a U-shaped length of waveguide.
Patent GB-1389470-A (GB)
Title: Set point controller
IPC: H02P8/00
Filed: 1972-10-20
Abstract: 1389470 Set-point control MOBIL OIL CORP 20 Oct 1972 [12 Jan 1972] 48435/72 Heading G4H [Also in Division H2] Apparatus for use in a process control system comprises a stepping motor having a permanent magnetic rotor, a permanent mgnetic stator and a plurality of motor windings, and a potentiometer having a direct coupling between a motor driven shaft and a rotatable shaft of the potentiometer. Data measured by transducers associated with the processing system supply information relating, e.g. to temperature, pressure or flow rate to a computing device which provides a digital pulse train of equiweighted pulses the number of which relates to a dsired change in, e.g. the setting of a valve in the system. These pulses are applied to logic circuitry whereby they are routed sequentially to the windings of the stepping motor to cause its rotor to rotate by a number of increments corresponding to the number of pulses in the train to alter the setting of the potentiometer shaft and therefore its output voltage, which voltage is used an an analog control loop to move the valve to the desired setting. The computing device may alternatively supply a pulse the length of which is significant and clock pulses are supplied to the logic circuits whilst this pulse is present.
Patent GB-1455014-A (GB)
Title: Power control systems and arrangements incorporating power control  systems
IPC: G05F1/66
Filed: 1973-10-18
Abstract: 1455014 Automatic power control GECELLIOTT AUTOMATION Ltd 8 Jan 1975 [18 Oct 1973] 48647/73 Heading G3R The power consumed by each of a series of loads supplied from a common source is regulated in accordance with the differences between actual and demanded power levels in each case. The difference signals are modified in dependence upon a function of the sum of the difference signals, the function being chosen so as to minimize the effects of a change in one demanded power level on the other loads. As shown, motors 10, 30, 50 drive variable pitch thrusters on a ship-mounted oil drilling rig, powered by a diesel alternator 70. The actual power in each motor is represented by signals 12, 32, 52 which are compared with power demand signals 14, 34, 54 from a computer. The resulting error signals 16, 36, 56 are fed through three-term controllers 17, 37, 57 and summing circuits 19, 39, 59 to form modified power demand signals 13, 33, 53 which adjust  the pitch of the thrusters and thereby control the power consumed by the motors 10, 30, 50. The circuits 19, 39, 59 receive add and subtract components from controllers 76, 78 which are fed with the summed values of the three error signals 16, 36, 56. The transfer function of controller 76 is related to the transient characteristic of the alternator 70, while the transfer function of controller 78 is related to the combined transient performances of the motors 10, 30, 50. The control system may be in analogue form or may be constituted by a digital computer.