baber/WOPTO huggingface dataset:
Patent GB-1499221-A (GB)
Title: Process for producing chlorosulphonylbenzoylchloride
IPC: C07C67/00
Filed: 1976-04-14
Abstract: 1499221 Preparation of chlorosulphonylbenzoyl chlorides IHARA CHEMICAL INDUSTRY CO Ltd 14 April 1976 [19 Nov 1975] 15298/76 Heading C2C A chlorosulphonylbenzoyl chloride of the formula wherein X is H, halogen or NO 2 , is obtained by reacting more than a stoichiometric amount of phosgene with a compound of the formula or an alkali metal or alkaline earth metal salt thereof in the presence of dimethylformamide as co-reactant, optionally in the presence of an inert organic solvent. Dichlorotolyl sultones of the formula are also obtained in the above reaction as byproducts. o-Sulphobenzimide may be obtained by treating a reaction mixture containing o-chlorosulphonylbenzoyl chloride and dichlorotolylsultone with an alcohol, reacting the resulting mixture of the ester of o-chlorosulphonyl benzoic acid and dichlorotolylsultone with NH 3  to give the ammonium salt of o-sulphobenzimide and hydrolysing this salt with a mineral acid.
Patent GB-689366-A (GB)
Title: Improvements in hand stamps
IPC: B41K1/56
Filed: 1951-06-29
Abstract: 689,366. Hand stamps. NATIONAL CASH REGISTER CO. June 29, 1951 [July 7, 1950], No. 15454/51. Class 100(ii) A hand stamp includes a handle for holding interchangeable type, there being provided a shank on the type, a member forming part of the handle and bored to receive the shank, retaining means for the shank within the member and a spring-loaded releasing device for forcibly ejecting the type from the handle. In the form of Fig. 2, the shank 22 of the type 70 is tapered and enters a similar-shaped opening in the end plug 21 of the handle which consists of a sleeve 66. The ejecting shaft 63, at the upper end, carries a press-button 62 slidable in the open end of the sleeve and at the lower end is reduced to enter the opening in the plug 21. A spring 69 urges the shaft upwardly. The shank 22 is retained in the opening in the plug 21 by a spring-loaded ball 24 engaging in a groove 28 therein. When the press-button 62 is pressed the shank of the type is ejected. The handle 66 in the form shown in Fig. 2 is adapted for extension by means of a further handle portion 57 connected thereto by a flared portion 56 which fits over the tapered upper end 55. A pin on the part 55 enters a bayonet joint slot on the part 56 to secure the parts together. The handle extension 57 has a push-button 64 loaded by a spring 65 and connected by a shaft 60 to a contact part 61 which transmits displacement of the button 64 to button 62 to eject the type. In the form of Fig. 5, the lower end of the shaft 41 is formed with a bore 43 to receive the end of the shank on the type. The spring-loaded retaining ball 45 projects through a drop-shaped opening 44 in the wall of the bore 43 to engage in the groove in the shank. A pin 52 engages in a slot 53 in the shaft to prevent rotation and to limit movement of the shaft. As the push-button 47 is pushed the ball 45 is cammed. out of the groove by the sides of the opening 44 and the shank is ejected. The type character may be of micro-porous resiliently vulcanized rubber secured in a cup-like holder 26, Fig. 2. The types are' stored in a tray, the weight being taken during storage and during attachment to the handle (which is effected by forcing downwards on to the shank) by a flange 29.
Patent GB-1467159-A (GB)
Title: Electromagnetic switch
IPC: H01H51/00
Filed: 1974-04-08
Abstract: 1467159 Electromagnetic switches SQUARE D CO 8 April 1974 [19 April 1973] 15515/74 Heading H1N An electromagnetic contactor comprises a coil 48 on a bobbin 72 having a cylindrical passage 80 axially aligned with openings 50, 63 in end pieces 24, 62 fixed to the contactor frame 40 and a plunger armature 82 having a portion which extends outside the passage in which portion is a cavity in which is moulded at least a portion of an insulating movable contact carrier 104 carrying movable contacts co-operating with fixed contacts mounted on an insulating support 14 having an aperture 148 through which the portion of the movable contact carrier extends. The fixed and movable contacts can form normally closed or normally open contacts. Stop surfaces 70, 184 limit the movement of the plunger which is damped. Two contactors may be mounted side by side, Fig. 1, not shown, and joined and electrically interconnected by triangular metal conductor members which support between them a specially shaped are-chute interposed between the contactors.
Patent GB-1412232-A (GB)
Title: Error correction for an integrating analogue to digital converter
IPC: G01D5/244
Filed: 1974-04-09
Abstract: 1412232 Analogue to digital conversion SINGER CO 9 April 1974 [24 May 1973] 15598/74 Heading H3H In a dual ramp analogue-to-digital converter in which unknown Ex and reference Eref voltages are applied successively through respective amplifiers 13, 35 of gains K2 and K1 to an integrator 23, error due to inequality of K1 and K2 is corrected by a preliminary cycle in which a test voltage Etest is fed through amplifier 35 to the integrator 23 for a time T and then Etest is fed to the integrator through amplifier 13 until its output reaches zero, the time t1 taken being used as the time for integrating Ex in the following measurement cycle. Control signals for switches 59, 61, 43 and 21 are obtained from a flip-flop divider (71) Fig. 2 (not shown) connected to the clock 51, and AND gates (73, 95, 85, 97). The count in counter 33 at the end of t1 is loaded into a second counter (75) which is counted down to zero to define the integration time for Ex. Ex and Eref may be sin # and cos # signals, Fig. 3, octant-determining logic controlling the order of switching of switches S1 to S6 to provide a digital count at 167 of whichever of tan # or cot # is less than 1.
Patent GB-242321-A (GB)
Title: Improvements in or relating to windscreens for automobiles
IPC: B60J1/06
Filed: 1925-03-30
Abstract: 242,321. Cox, G. H. March 30, 1925. Obscuremerit by rain, preventing.-A weather shield or attachment to the wind screen of a motor vehicle to prevent obscurement by rain comprises an upper screen b of glass or like transparent material hinged to the top of the wind screen frame c and supported in the operative position at the desired inclination by means of supports d. These are hinged at their lower ends d' to the frame c and have at their upper ends a sliding connection with the frame b. A second or lower screen a is provided with ams a<1>, which have a sliding and pivotal connection at a<2> on the frame c, and with studs a<3>, which are adapted to engage series of notches d<2> in the supports d. In the collapsed position, the screens a and b lie in a plane close to and immediately in front of the wind screen frame.
Patent GB-485341-A (GB)
Title: Improvements in means for submarine mine-sweeping
IPC: B63G7/04
Filed: 1937-06-07
Abstract: 485,341. Sweeping up submarine mines, seaweed, and the like. HARRISON, J. E. June 7, 1937, No. 15714. [Classes 9 (ii) and 68 (i)] [Also in Group I] Means for sweeping up submarine mines, seaweed and other underwater growths comprises two drag-lines 2, each of which is towed by one of a pair of sweeping vessels 1 and has a weight 3 and an otter 4 or iron-bound otter board 4a attached thereto for keeping the ends of the lines at the right depth and the correct distance apart, and one or more toothed cutters 5 towed between the two vessels by pairs of smooth sweep lines 6 extending between the drag-lines. The cutters are preferably constructed as described in Specification 474,579. The lines 6 may be passed around shackles 8 attached to eyelets 7 on the drag-lines and so back to the vessels 1. When used for cutting seaweed, a fishing net secured along one edge to the cutter and additionally or alternatively to the sweep lines and carrying cork floats along the other edges may be provided for sweeping up the seaweed. According to the Provisional Specification, smooth or serrated sweep lines may be towed between the draglines.
Patent GB-1347320-A (GB)
Title: Preparation of amines
IPC: C08F8/32
Filed: 1971-05-19
Abstract: 1347320 Fuel and lubricant additives SHELL INTERNATIONAL RESEARCH MAATSOHAPPIJ BV 19 May 1971 [21 May 1970] 15747/71 Headings C5F and C5G [Also in Division C3] Lubricant and fuel compositions comprise as detergent additives amines prepared by reacting a halogen-substituted hydrocarbon of molecular weight at least 600 with a polyamine and extracting the mixture obtained with a liquid comprising methanol and/or ethanol and not more than 10 weight per cent of water. The lubricant may be a mineral lubricating oil and the fuel a gasoline or aviation turbine fuel, optionally containing conventional additives. The amines may be derived from chlorinated polymers of ethylene, propylene and/or butene, particularly polyisobutylene, and polyalkylene polyamines. In an example a mineral lubricating oil composition comprises basic calcium alkyl salicylate, zinc dialkyl dithiophosphate and a reaction product of chlorinated polyisobutylene and tetraethylene pentamine which has been extracted with water/isopropanol mixture and then four times with anhydrous methanol.
Patent GB-369082-A (GB)
Title: Manufacture of artificial sponges
IPC: C08J9/00
Filed: 1931-05-29
Abstract: Artificial sponges are made from a mixture of viscose and soluble salts, if required with an addition of a fibrous material, e.g. hemp, using as a coagulating agent a hot, preferably boiling, solution of a salt.  The salt in the coagulating solution is preferably one which reacts with caustic soda solution; suitable salts are, e.g. sodium sulphate, magnesium sulphate, magnesium chloride, sodium sulphite or mixtures thereof or salts of volatile bases which are expelled by a hot caustic soda solution, e.g. ammonium or aniline sulphates. Acids, such as sulphuric, hydrochloric, sulphurous, boric, glycollic, and lactic acids, may also be added to the salt solutions.  The pore-forming salt may be any salt soluble in the salt solution used and is preferably a salt containing a considerable amount of water of crystallization, e.g. Na2SO3.7H2O or N Na2SO4.10H3O.ALSO:Artificial sponges are made from a mixture of viscose and soluble salts, if required with an addition of a fibrous material, e.g. hemp, using as a coagulating agent a hot, preferably boiling, solution of a salt. The salt in the coagulating solution is preferably one which reacts with caustic soda solutions; suitable salts are, e.g. sodium sulphate, magnesium sulphate, magnesium chloride, sodium sulphite or mixtures thereof or salts of volatile bases which are expelled by a hot caustic soda solution, e.g. ammonium or aniline sulphates.  Acids such as sulphuric, hydrochloric, sulphurous, boric, glycollic, lactic acids may also be added to the salt solutions.  The pore-forming salt may be any salt soluble in the salt solution used and is preferably a salt containing a considerable amount of water of crystallization, e.g. Na2SO3.  7H2O or Na2SO4.10H2O. Examples are given for making sponges from a composition consisting of viscose and hemp.
Patent GB-1101042-A (GB)
Title: Improvements in or relating to turbojet engines for vertical take-off and landing aircraft
IPC: B64C29/00
Filed: 1965-04-13
Abstract: 1,101,042. VTOL aircraft. M. A. N. TURBO G.m.b.H. 13 April, 1965 [16 April, 1964], No. 15853/65. Heading B7G. [Also in Division F1] A by-pass gas turbine engine in a VTOL aircraft has a chamber 8 on each side into which by-pass air and turbine exhaust gases flow, propulsion nozzles being formed by a row of transverse slots in the base of each chamber, the propulsion jets being deflected by visors 13 pivotable about horizontal axes to provide forward thrust, direct lift or braking thrust. The engine is preferably arranged so that the thrust vector, when direct lift is selected, passes through the aircraft centre of gravity.
Patent GB-703068-A (GB)
Title: Improvements in or relating to bridges
IPC: E01D15/133
Filed: 1950-06-26
Abstract: 703,068. Bridges. FAWKES, J. June 13, 1951 [June 26, 1950], No. 15885/50. Class 20 (1) A bridge comprises interchangeable gangway units 1 of channel section, and hand-rail standards 15 and bracing bars 22, 23, 25 adapted for assembly to the units 1 by bolt or screw couplings. Each unit 1 comprises a metal base 3 with sides 2 to which are respectively secured, e.g. by welding, angle brackets 4, 16. The brackets 4 enable a plurality of units 1 to be bolted in alignment, and to the brackets 16 are bolted the standards 15, which may be extended downwardly at 21 to permit the bolting thereto of the longitudinal and transverse bracing bars 22, 23, 25. The end units 1 may have secured beneath them brackets 6, Fig. 3, having a longitudinal slot 8a in which is adjustably fixed a bolt 8b joined to brackets 9, 10 on a buttress for the bridge. The brackets 6, 9, 10 are bolted together to allow adjustment of the bridge in three perpendicular directions. A two-way bridge, Fig. 4 (not shown), is constructed by bolting vertical, downwardly extending struts at the junctions of any four units 1, filler plates bolted to the struts at each end serving to bridge the space between the two lines of units 1. For transportation, the dismantled units 1 are stacked in superposed position, the rest of the bridge parts being accommodated in the spaces so formed, end plates being provided.
Patent GB-693290-A (GB)
Title: Improvements in or relating to telephones
Inventor: WOLFF JOACHIM
IPC: H04R9/04
Filed: 1950-06-26
Abstract: 693,290. Telephone instruments. FORTIPHONE, Ltd. June 12, 1951 [June 26, 1950]. No. 15950/50. Class 40 (iv). A telephone instrument such as a loudspeaker or deaf aid has the moving coil on both the inside and the outside of the former. The inside winding 3 is connected to the outside winding 2 through a hole 4 in the former, and external connections are made at 5, 6. The windings may be of silver, deposited from solution, left by an etching process, cut after deposition on the whole surface or produced photographically.
Patent GB-291462-A (GB)
Title: Improvements in the manufacture of non-ferrous alloys
IPC: C22C9/02
Filed: 1928-06-02
Abstract: 291,462. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Merten, W. J.). June 4, 1927, [Convention date]. Alloys.-Copper alloys containing 2-10 per cent of tin and 10-28 per cent of lead, are melted with calcium carbide whereby the lead is uniformly dispersed and the alloy rendered suitable for bearings. About 1 lb. of carbide may be added to 50 lb. of alloy.
Patent GB-519670-A (GB)
Title: Variable speed gearing for superchargers, fans, pumps and compressors of turbo and centrifugal types
IPC: G05D13/00
Filed: 1938-05-31
Abstract: 519,670. Hydraulic brakes. PARAVICINI, T. P. DE. May 31, 1938, No. 16209. [Class 103 (i)] [Also in Group XXIV] Variable-speed epicyclic gearing for driving turbo or centrifugal superchargers, compressors, pumps, or fans has one element, for instance a planet carrier, connected to the driving shaft, a second element, for instance an annulus, connected to the driven member, and a third or reaction member, for instance a sun gear, driving a liquid pump which comprises a fixed casing m, Fig. 5, containing a central gear k meshing with a number of secondary gears l to form a number of gear pump units, the highpressure region p of each unit communicating with the low-pressure region n of the adjacent unit through a passage q<1> provided with a control valve. Each gear l may mesh with one or more further gears so as to increase the number of pump units. Each control valve in the pump P includes a spring-loaded relief valve, so that the maximum speed of the driven member is limited to a predetermined value. As shown in Figs. 5, 6 and 8, each passage q<1> in the pump is controlled by a rotary sleeve valve q which also houses a spring-loaded relief valve t controlling a passage r leading from the associated high-pressure region p into the interior of the valve q, which latter is always open to the low-pressure region. The valves q are operated in unison by a ring B having slots engaging cranks u on the valves, the ring B being turned by a link c operated by a piston H in a cylinder E. The piston H is urged upwards by a spring G bearing against an adjustable abutment J and the two ends of the cylinder are connected to the mouth and throat of a Venturi tube F in the compressor and delivery pipe, whereby a constant delivery, depending on the setting of the abutment J, is obtained. The ends or one end only of the cylinder E may be connected to other selected parts in the circuit of the compressor &c. so as to obtain desired delivery characteristics. Cooled liquid is fed to the regions n by a pump, which may be the engine lubricating pump, through a pipe I with branches L, while liquid is discharged from one or more of these regions through a pipe O. Alternatively, liquid may be bled from the region p into a pipe leading through a cooler into a tank from which it returns by gravity to the regions n.
Patent GB-874535-A (GB)
Title: Improvements in appliances for the artificial rearing of piglets and other young animals
IPC: A01K9/00
Filed: 1956-05-28
Abstract: 874,535. Teat feeders. ERNST, A. Aug. 27, 1957 [May 28, 1956], No. 16381/56. Class 5(2). An appliance for rearing piglets and other young animals comprises teats 13 detachably mounted in two rows on the front face of a removable member 15 of elastic material which is applied to the rear face of the front wall 4 of a container and formed with channels or grooves 18 along which food passes, releasable means being provided for compressing the member 15 against the front wall 4 of the container thereby sealing the channels 18. The front face of the member 15 has a series of projections 16 engaging in apertures 11 in the wall 4 and having flanged outer ends 16a Fig. 4, for holding the teats in position. The channels 18 extend from the projections 16 to notches 19 formed in the lower edge, of the member 15 and engaged by notches 21 in the lower end of a pressure plate 20 which is adhesively secured to the member 15. A partition 22 secured to the plate 20 has a channel 23 along its rear, its lower edge being carried in a sealing strip 24 on the base of the container. A wedging plate composed of a rubber sheet 25 sandwiched between two metal plates 25a, can be slid into the channel 23 on the plate 22 and a similar channel 26 on the back wall 1 of the container. A thick rubber sheet 27, perforated to receive the teats, covers the wall 4. End pieces moulded to represent the head and hind quarters of a sow may be fitted.
Patent GB-530004-A (GB)
Title: Automatic tyre inflator
IPC: B60C23/12
Filed: 1939-06-05
Abstract: 530,004. Tyre pumps ; valves. BREWSTER, K. June 5, 1939, No. 16486. [Class 8 (i)] [Also in Group XXIX] Within a detachable hub cap 4 a pump cylinder is secured to rotate with the hub and wheel, e.g. by bolts 16 passing through lugs on the cylinder. The lower end of the cylinder is slotted to form guides for the piston which carries a pin 21 entering a ball-bearing structure 22 which moves in an eccentric groove formed in a weighted reaction disc 24 pivoted freely on a pin 10 on the cylinder. Air is drawn in through apertures 15 in the cylinder side and forced out past a ball valve 29 resting on a rubber seat held down by a spring-pressed ring 30, and passes to a hollow casting 41, Fig. 6, having a tyre connection 69, a covered valve 64 to which a pressure gauge may be attached on removal of the cover, and a relief valve comprising a flanged disc 53 co-operating with a rubber seat held in place by a ring 56 pressed down by a screwed stopper acting on a spring.
Patent GB-387570-A (GB)
Title: Talking machine
IPC: G11B25/04
Filed: 1932-06-10
Abstract: 387,570. Sound recording and reproducing apparatus ; acoustic horns. FAUCHET, H., 2, Rue Nollet, Paris. June 10, 1932, No. 16511. Convention date, June 10, 1931. [Classes 13 and 40 (ii).] Sound-reproducing apparatus comprises a tubular arm 5 of telescopic and resilient form adapted to be held in a fixed support at one end and to carry the mounting 4 of the soundreproducer, such as a sound-box or electric pick-up, at its opposite free end which is movable longitudinally of the arm so that during playing of a record the resilient nature of the arm ensures radial tracking of the record by the sound-reproducer. The arm 5 is in the form of a coil spring which is connected at its smaller end with the arm 4 carrying the soundreproducer and at its larger end with a socket 8 mounted in a support 10. The socket 8 also houses the end of a bent outlet tube 6. The arm 4 carries a sleeve 15, Fig. 1, which is adapted to slide on a guide-rod 12 arranged along the longitudinal axis of the tube 5 and supported at its ends by members 13, 14. In a modification the tube 4 carries a collar 19, Fig. 5, which is slidable on two parallel rods 21, 22. The tube 5 is provided with an internal blade 27 to prevent bending of the tube in the extended position. The bent tube 6 is adapted to be rotated about the longitudinal axis of the tube 5, and in the position shown in Figs. 1 and 3 is adapted to deliver to a conduit 31 which is arranged beneath the motor board 3 and is provided with an outlet either in the motor board or in one of the side walls. This outlet is closed by a disc 33 having apertures 32 which may be closed by a rotatable apertured disc 35. If desired the bent tube 6 may be moved into an upturned position as shown in dotted lines in Fig. 3, and its end may be fitted either with a detachable telescopic amplifying horn 37, which may be constructed similarly to the tube 5, or with a horn 38 for co-operating with reflectors 39 arranged in the lid of the cabinet. Alternatively, a microphone may be arranged in, or opposite to, the bent tube 6 so as to enable reproduced sound to be transmitted to a distance. A cushion may be provided for supporting the sound-reproducer when not in use. The sound-box may be adapted to traverse the record either towards or away from the centre. The Specification as open to inspection under Sect. 91 describes also the application of the invention to sound-recording apparatus. This subject-matter does not appear in the Specification as accepted.
Patent GB-1282142-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: KENT NELSON HECTOR
IPC: F01D5/08
Filed: 1969-03-29
Abstract: 1282142 Gas turbine plant - cooling blades ROLLS ROYCE Ltd 25 March 1970 [29 March 1969] 16599/69 Headings F1G and F1T The invention relates to a method of cooling turbine blades of a gas turbine engine in which high pressure cooling air is divided into two flows, one flow being supplied to a passage located adjacent the leading edge of one or more blades of the turbine and the other flow being supplied to a passage located rearwardly of the first passage. In the engine shown the turbine rotor 18 has blades 20 mounted at the periphery thereof, each blade having a cooling air passage 26 disposed adjacent the leading edge and a series of passages 28 disposed rearwardly of the passage 26. The engine comprises stator structure 50, 54 which defines a chamber 62 to which air under pressure tapped from the engine compressor is supplied through passage 60. One flow of air from chamber 62 passes through passages 52 in the member 50 and then radially outwardly through an annular passage 40 defined between the disc 18 and a ring member 30 secured thereto by bolts 32, the air then flowing radially outwardly through passages 26 formed in the blades 20 adjacent the leading edges thereof. A second flow of air from chamber 62 passes through passages 58 defined between the members 50, 54 into the chamber 44, this air then flowing radially outwardly through passages 28 formed in the blades rearwardly of the passages 26. The air discharges through the blade tips. Seal means 33, 34 are provided between the ring member 30 and member 50, also at 46, 48 adjacent the shaft 22. In Fig.3, the ring member 30 is dispensed with and air flows from the passages 52 through bores 70 in the rotor disc 18 to the blade passages 26. The blade passages 26, 76 shown in Fig. 5 communicate with the leading and trailing edges of the blade through ducts 27, 78 respectively. Swirl devices may be disposed in the air passages 52 and 58.