baber/WOPTO huggingface dataset:
Patent GB-1481190-A (GB)
Title: Electrical circuit for magnetising and demagnetising permanent magnets
IPC: H01F13/00
Filed: 1974-12-18
Abstract: 1481190 Magnetizing and demagnetizing DEUTSCHE EDELSTAHLWERKE AG 18 Dec 1974 [4 Oct 1974] 54569/74 Heading H1P Magnetizing/demagnetizing apparatus (Figs. 3a, 3b) comprises a capacitor C, series magnetizing a demagnetizing coils, L, R, and an, e.g. silicon controlled rectifier electronic switch V 1  with a diode V 2  branched parallel to capacitor C and optionally connected by switches d 1 , d 2  to one or the other end of the series coils L, R. For magnetization d 1  is closed and d 2  open (Fig. 3a) and capacitor C is charged from controllable source St 1 . Then switch V 1  is opened through its control electrode from St 2  to discharge the capacitor through L, R. with reverse transient suppression over switch d 1  and diode V 2 . For demagnetization d 1  is open and d 2  closed, and after charge of capacitor C 2  and opening of switch V 1  the capacitor is discharged through LR (and diode V 2 ) in oscillatory manner to create a decaying alternating magnetic field.
Patent GB-1155339-A (GB)
Title: Method and Apparatus for Welding Studs.
IPC: B23K9/20
Filed: 1967-11-30
Abstract: 1,155,339. Stud welding. GREGORY INDUSTRIES Inc. 30 Nov., 1967 [7 Dec., 1966], No. 54582/67. Heading B3R. [Also in Division H2] Apparatus for welding a stud 5 to a workpiece P comprises means for retracting a chuck 16, for holding the stud to be welded, from the workpiece, means for moving the chuck back toward the workpiece to cause the stud to contact the workpiece, means for establishing a welding arc between the stud and the workpiece prior to the stud contacting the workpiece again, and means for retracting the chuck a second time, after the stud has been welded to the workpiece, to separate the chuck from the stud. Operation.-The stud 5 gripped by spring fingers of the chuck 16 of the welding tool, is placed in contact with the workpiece P and slight pressure applied to bring a spark shield 18 also into contact with the workpiece. Operation of a switch T causes the core 32 of a solenoid to be drawn toward a stop 38 in the tool and thereby to retract the chuck from the workpiece to space the stud a distance from the workpiece. This retraction is accompanied by the initiation of a pilot arc drawn between the stud and workpiece. The solenoid C then de-energizes and the chuck moves rapidly, under the action of coil spring 40, towards the workpiece and, at the same time, a main welding arc is established. After the stud has been welded to the workpiece the solenoid is again energized and, with the spark shield still held against the workpiece, the chuck is thus withdrawn from the stud. Welding circuit.-The welding circuit (Fig. 2, not shown) includes an initiating circuit for controlling the initial chuck retraction and for drawing the pilot arc, a synchronizing circuit for timing each operation of the cycle and ordering the correct sequence of events, a stud control circuit for controlling the movements of the chuck to and from the workpiece, and a welding current circuit for establishing the main arc by capacitor discharge.
Patent GB-1058970-A (GB)
Title: Production of nitric oxide
Inventor: JOCKERS KURT
IPC: C01B21/26
Filed: 1965-12-28
Abstract: NO obtained by the catalytic oxidation of NH3 in the presence of steam and containing NO2 and H2O is purified by indirect cooling to 80-92 DEG C. to remove 70-85% of the water as nitric acid of less than 1% concentration, followed by direct cooling with nitric acid of at least 15% concentration, which is recycled. The oxidation may be effected at 850-900 DEG  C. using a Pt-Rh catalyst, and the gases leave at 130-150 DEG  C.  The recycle acid may be cooled indirectly with water and/or brine to 13-42 DEG  C., and preferably has a concentration of 18-21%; part is withdrawn as product.
Patent GB-1184370-A (GB)
Title: Concrete pile joint
Inventor: THORIN GUSTAV LENNART
IPC: E02D5/52
Filed: 1967-12-02
Abstract: 1,184,370. Concrete pile couplings. SVENSKA PALFABRIKEN A. B. Dec. 2, 1967, No. 54940/67. Heading E1H. Coupling elements secure together adjacent ends of cast reinforced concrete pile sections 1, 2, each coupling element comprising a sleeve 5 surrounding the pile section end and an end-plate 6 secured to the steel reinforcing rods 3, the end-plates 6 being provided with bolt receiving apertures 7 which pass through the plates so that each aperture opens into a cavity 8 in the pile jacket surface adjacent the coupling end, and the abutting ends of the pile sections are secured together by bolts 10 and nuts 12 which are passed through the apertures of the end-plates so that bolt heads 11 are positioned in the cavities in one pile section and the nuts 12 in the cavities in the other pile section.
Patent GB-1281870-A (GB)
Title: Labelling machine attachment for applying labels to polygonal containers
Inventor: WESLEY JOHN G
IPC: B65C1/00
Filed: 1970-11-19
Abstract: 1281870 Labelling polygonal containers J G WESLEY 19 Nov 1970 [9 Jan 1970] 55082/70 Heading B8F A machine for applying labels to round containers is adapted for use with polygonal containers by an attachment 400 (Fig. 1) which comprises a pair of side levers 442, 443 connected at one end by a bar 444 and at the other end by a shaft 414. Spin wheels 402, 404 are journalled on the side levers and mesh with wheels 410, 412 fast on the shaft 414 to ensure synchronous rotation. Recesses on the inwardly facing surfaces of the spin wheels are adapted to engage the ends of a polygonally cross-sectioned container mounted therebetween the recess in wheel 404 being provided with a spring pressed plate. Gravity biased pressure rollers 418, 420 are mounted on a loose sleeve 492 so as to engage the peripheral surface of the container. The assembly is pivotally supported by pins 446, 448 removably mounted on the labelling machine (Fig. 4) so as to be engageable with rollers 32, 33 which normally support a round container. The roller 33 is adjustably mounted to enable containers of various sizes to be accommodated. The labels are stored in a hopper H and are fed by roller 50 to a holding station wherein the edge of the label abuts a stop 35, the feed rollers 36, 37 normally being held apart. When rollers 36, 37 are brought together and stop 35 removed, the label is fed between roll 62 and glue roll 60 and thence round roller 32 to the container. Rolls 32 and 33 rotate continuously while the machine is switched on. Operation.-The attachment 400 is rotated clockwise away from rolls 32, 33 by a treadle arrangement 422 and a polygonal container mounted between the spin wheels so that the container seam side 471 faces the hopper. On releasing the treadle the wheels contact rollers 32, 33 and begin to rotate. Simultaneously arm 111A is pivoted to close switch S1 which conditions the machine to be operated subsequent to the closing of switch S2 by lever 115A being displaced by contact with a corner of the container. Switch S2 starts a timer which causes roller 36 to ascend and stop 35 to be removed at the correct moment to ensure that the leading end of the label is fed into contact with the seam 483 of the container. The gravity biased pressure rolls smooth the label on to the surface of the container. When the label has been applied the treadle is again operated to remove the spin wheels from rollers 32, 33, and the arm 111A is released. The machine is arranged so that in the absence of a label being detected by a photodetector P the release of arm 111A and return of switch S1 activates solenoid SOL 1 to clutch roller 50 to feed a fresh label to the holding position, whereupon the photo detector senses the leading edge of the label and declutches roller 50. Timing devices are also incorporated so that selected parts of the label may be gummed. U.S. Specification 3,278,359 relating to a labelling machine for applying labels to round containers is referred to.
Patent GB-1430946-A (GB)
Title: Stud arrangement for loose leaf binder
IPC: B42F13/28
Filed: 1972-11-30
Abstract: 1430946 Loose-leaf binders CAXTON DESIGNS Ltd 8 Feb 1974 [30 Nov 1972] 55391/72 Heading B6E A loose-leaf binder part assembly having a base 1, Fig. 1, and a pair of spaced studs 2 is attached to a cover 7 by pressing the studs through holes in the cover and locating the assembly by a locking plate 5 having correspondingly spaced bores with diametrally opposite radial locking pawls 6 which engage with axially spaced teeth 4 in diametrally opposite grooves 3 in the studs. Plate 5 may be replaced by washers.
Patent GB-1245286-A (GB)
Title: Method of phosphatization of iron products or iron-based alloy products
IPC: C25F3/06
Filed: 1968-11-22
Abstract: 1,245,286. Phosphatisation of iron; electrolytically producing iron ions. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE. Nov. 22, 1968 [Dec.4, 1967], No. 55526/68. Headings C7B and C7U. Protective phosphate coatings are formed on the surface of iron or iron alloy articles by a process in which the articles are immersed in a phosphatizing bath containing zinc in solution, the first stage of the process consisting in enriching the metal/solution interface with iron ions by surface dissolution by means of a direct potential difference applied between a counterelectrode and the articles constituting respectively the cathode and the anode of an electrolytic cell, and the second stage of the process consisting in cancelling the said potential difference to bring about the formation on the surface of said articles of a layer of phosphates rich in iron from iron ions localized at the metal/solution interface and of a layer of zinc phosphate from the zinc introduced initially into the phosphatization bath. The phosphatization bath may contain zinc phosphate, accelerated with zinc nitrate, and the potential difference is maintained for a time sufficient for 1À8 to 5 coulombs per square cm. to pass through the electrolytic cell.
Patent GB-1219960-A (GB)
Title: Process for preparing unsaturated esters from olefins
IPC: C07C69/01
Filed: 1968-11-22
Abstract: 1,219,960. Vinyl acetate. SOC. ITALIANA RESINE S.p.A. 22 Nov., 1968 [29 Nov., 1967], No. 55635/68. Heading C2C. [Also in Division B1] Vinyl acetate is prepared by reacting ethylene and acetic acid in the liquid phase in the presence of molecular oxygen with a catalyst system comprising a suspension of a vanadium compound sodium acetate, a copper salt and palladium chloride in acetic acid. The reaction is at elevated temperature and pressure and with a vanadium concentration (as anhydride) of from 0.001 to 0À1 mole/litre.
Patent GB-1217798-A (GB)
Title: Electrically heated storage heater
IPC: F24H7/00
Filed: 1969-11-14
Abstract: 1,217,798. Thermal storage heaters. G. BAUKNECHT G.m.b.H. ELEKTROTECHNISCHE FABRIKEN. 14 Nov., 1969 [14 Nov., 1968], No. 55826/69. Headings F4S and F4U. An electrically heated ceramic core heats, at least partially by radiation, a liquid heat exchanger located in a chamber formed in the core. The heat exchanger is formed of metal and may comprise two pipes which are joined by longitudinal fins, Fig. 1 (not shown), or by attachment to a plate, Fig. 2 (not shown). The plate may be spring urged against a wall of the chamber, Fig. 3 (not shown). If the two pipes are not joined, they may have radial or helical fins which may touch the walls of the chamber, Figs. 4 and 5 (not shown). The heat exchanger may alternatively be formed by securing a corrugated plate to a flat plate. Fig. 6 (not shown), or by securing two corrugated plates together, Fig. 7 (not shown).
Patent GB-1197599-A (GB)
Title: A Noise-Suppressing Hangar for Testing Jet Propelled Aircraft on the Ground
IPC: B64F1/26
Filed: 1967-12-08
Abstract: 1,197,599. Noise suppressing hangars. GRUNZWEIG & HARTMANN A.G. 8 Dec., 1967 [9 Dec., 1966], No. 55933/67. Heading E1A. A noise-suppressing hangar for testing jet propelled aircraft has a sliding or folding door 4 at one end, an exhaust muffler comprising a series of sound-muffling louvres 3a' at the other end and a roof provided with transverse openings 9 which are masked by weather protectors 11 on the outside and by sound-absorbing panels 2 2 on the inside. The panels may be formed of mineral fibres and have their upper surfaces faced with foils or plates such as aluminium-lead foil. Specification 1,089,030 is referred to.
Patent GB-1481245-A (GB)
Title: Control of hydraulic retarders
IPC: F16D57/00
Filed: 1974-12-30
Abstract: 1481245 Valves; hydrodynamic brakes LABAVIA-SGE 30 Dec 1974 [8 Jan 1974] 56070/74 Headings F2E and F2V Fluid flow through a vehicle hydraulic retarder is controlled by a valve member 10, having three holes 11, co-operating with a seat 5 in the contact conduit of the retarder. The valve member 10 is spring-loaded towards the seat 5 and slides on a rod 9 which may be displaced to the right as shown in Fig. 1, to permit of rapid emptying of the retarder. With the rod to the left the valve acts on a fluid pressure relief valve. The rod may be moved to the right by an electro-magnet or, as shown in Fig. 1, by a spring 19. To move the rod to the left negative pressure from the vehicle engine inlet manifold 29 is admitted to a chamber 16 bounded by a diaphragm 17 the other side of which is at atmospheric pressure. An electro-magnetic valve 32, operated by the vehicle brake or accelerator pedal 33 controls the admission of negative pressure to the chamber 16 and at the same time operates a three-way valve 28 which switches engine cooling water into the retarder to bring it into use. Instead of the holes 11 in the closure member 10 a notch may be provided in the periphery of the valve or a by-pass passage may be provided.
Patent GB-1488344-A (GB)
Title: Internal combustion engine
IPC: F01N3/34
Filed: 1974-12-30
Abstract: 1488344 Treating IC engine exhaust gas REGIE NATIONALE DES USINES RENAULT and AUTOMOBILE PEUGEOT 30 Dec 1974 56072/74 Heading F1B An IC engine having poppet valves has means for injecting gaseous fluid in the region of a valve of the engine, of the kind having an injection conduit discharging into the opening zone of the valve in order to produce a fluid injection only when the valve is in the open position, the means comprising a valve guide 9 consisting of a cylindrical body 10 extended by a hollow skirt 11 which is unitary with the body and concentric with the valve stem 12, with which it co-operates to form the conduit and an entry aperture 15 for the fluid, in the region between the skirt and body, the free end of the skirt being close to the connection portion between the stem 12 and head 8. In a modification the free end of the skirt is funnel shaped to follow the shape of the back of the valve head.
Patent GB-1243556-A (GB)
Title: Dryers
Inventor: SHUURINK FREDRIK ADOLF
IPC: D06F58/02
Filed: 1969-11-17
Abstract: 1,243,556. Tumble driers. F. A. SCHUURINK. 17 Nov., 1969 [21 Nov.. 1968], No. 56166/69. Heading F4G. A dryer having a drum 1 rotatable about an axis in a stationary casing, in which part of the drying air before entering the drum, is passed by a fan 5 along a heating device 17, wherein the heating device is arranged between two sheets 11 and 16 located inside the casing, said sheets being cooled by air passing over their outer surfaces. Sheet 16 is fixed to the casing and sheet 11 is fixed to the drum. The drying air is supplied to an enclosure 6 surrounding the fan 5 which blows the air through the centre of the drum wall 4, the front wall of the drum being provided with exit apertures 7 for the drying air which is then brought back into the fan enclosure through a narrow opening 12 at the rear of the enclosure where it is mixed with fresh air from the atmosphere. The cycling air follows the paths indicated by arrows in the diagram. Part of the circulating air escapes from the system through an opening to the atmosphere (not shown).
Patent GB-1501081-A (GB)
Title: Printing method
IPC: D06P3/14
Filed: 1973-12-06
Abstract: 1501081 Printing process I W S NOMINEE CO Ltd 13 Feb 1975 [6 Dec 1973] 56542/73 Heading D1B A printing process comprises applying to a substrate a printing paste containing a dye substantive to the substrate, a water-in-oil emulsion and a synthetic polymeric composition capable of forming a film over the substrate and reacting with or entrapping unfixed dye and heating the printed substrate to fix the print and react or bind any unfixed dye. The water and oil are preferably present in the ratio of at least 80:20 and the polymeric composition may be a mixture of an acrylate copolymer and a cationic polyamine - epichlorohydrin resin which is present in amounts of 0.1 to 3.0% by weight of the paste. The heating step may be a steam or bake process. Reactive, acid, disperse, premetallised, direct or basic dyes may be used, and the substrates used include cellulosics, polyesters, polyamides and acrylic fabrics and blends thereof, cotton and keratinous fibres e.g. mohair, alpaca, vicuna, lama, camel hair, wool especially in the form of carpets.
Patent GB-1293957-A (GB)
Title: Radiation receiving system
IPC: G01S3/781
Filed: 1969-11-21
Abstract: 1293957 Star tracking NETHERLANDS APPLIED SCIENTIFIC RESEARCH FOR INDUSTRY TRADE & COMMERCE 21 Nov 1969 [26 Nov 1968] 57065/69 Heading H4D  A radiation receiving system includes means for causing the axis thereof to track an object and means displaced laterally from the axis for masking radiation from a source angularly displaced from the axis of the system. A device for tracking a star. comprises a lens 1 focusing the image of the star on to a rotating reticle 2 which has a pattern modulating thelight passing therethrough. The light passes through a field lens 6 on to a detector 7. The lens and detector are mounted in a casing 4 around which rotates a housing 10 carrying the shaft 3 of the reticle 2, the reticle thus rotating in a planetary motion around the axis of the detector. The output of the detector is frequency modulated enabling signals to be derived which are used to drive servomotors which position the axis of the system to track the star. A second system has its axis parallel to the first and consists of a reversing prism 20 in a rotating housing 38. Light from the sun (or other powerful source) is focused by lens 23 on to detector 24 after passing through a rotating reticle 16. The output of the detector is compared in a phase detector with signals from slip-rings 37, mounted on the housing 38, to produce drive signals 25, 26 for positioning a mask plate 34 at a position in front of the reticle 2 where the image of the sun focused by lens 1 would appear. Thus the light from the sun does not pass to the detector 7 and the device tracks the desired object on the axis of the first system.
Patent GB-1159617-A (GB)
Title: Improvements relating to Resistance Spot Welding Apparatus.
Inventor: SAWBRIDGE WALTER
IPC: B23K11/31
Filed: 1966-10-26
Abstract: 1,159,617. Spot welding. BULPITT & SONS Ltd. 15 Nov., 1967 [26 Oct., 1966; 21 Dec., 1966], Nos. 48010/66 and 57104/66. Heading B3R. An electrode holder for a resistance spotwelding electrode has an internal chamber 20 through which coolant e.g. water, is arranged to be circulated to pass around the exterior of part of the electrode 34 in the chamber, the holder including means 16 for adjusting the position of the electrode longitudinally in the holder. A fluid-tight seal is formed at the mouth 13 of the holder by using a split, tapered collet 14 which screws into part 12 of the holder. Coolant entering the chamber 20 via an inlet 26 fed by a duct 23 and nipple 28 leaves via peripheral bores 30 in the adjuster 16 and a nipple 32. The bore 11 of the holder is internally screwthreaded and is engaged by threads on the adjuster 16 which when screwed down the bore pushes the electrode out of the collet 14 to a desired amount. In a modification (Fig. 2, not shown), the adjuster (47) is fixed by grub-screws to the electrode and a shaft (50) projecting from the holder at the opposite end to the electrode. The shaft may have a projecting end specially adapted to facilitate its turning. A water-tight seal is made at the end from which the electrode projects by means of a sealing ring (45) compressed by a gland screw (46) screwed into the extreme end (41) of the tip closure (39), and at the end from which the shaft projects by means of a closure screw (52), sealing ring (55) and gland screw (56). The holders may be mounted in either movable or fixed carriers of spot-welding machines. As an alternative the electrode may be screw-threaded for engagement with the thread of the holder so that the position of the electrode in the holder can be adjusted by relative rotation of electrode and holder
Patent GB-1277607-A (GB)
Title: A releasable corner joint for stacking-frames for loading pallets
Inventor: INGVARTSEN ARNE
IPC: B65D19/12
Filed: 1969-11-24
Abstract: 1277607 Releasable corner joint fastening A INGVARTSEN 24 Nov 1969 [27 Nov 1968] 57478/69 Headings E2A and E2B [Also in Division B8]  A releasable corner joint fastening for a stacking frame with detachable side members for a loading pallet, in which a girder 4 or 10 has on both of its ends a tubular post 11 or 8, the girders being fastened together by a U-shaped member 5 pivotally attached to one of the girders 4 at 6, the members 5 having at its opposite end a pin 7 which engages the tubular post 8 and is held latched in that position by a resilient locking member 13 which projects through apertures in the tubular post 11 and holds the member 5 in the latched position by engaging the slots 14. (For Figure see next column)
Patent GB-1253855-A (GB)
Title: New heterocyclic amines and compositions containing them, their production and use
IPC: C07D225/02
Filed: 1968-12-05
Abstract: 1,253,855. 2-Amino-azacyclotridecenes. AGRIPAT S.A. 5 Dec., 1968 [6 Dec., 1967], No. 57811/68. Heading C2C. Novel 2-amino- or 2-hydrazino-azacyclotridecenes of the formula where R is (a) a C 1-16  alkyl radical optionally substituted by C 1-4  alkoxy, C 1-4  alkylthio, halo, amino, C 1-4  alkylamino or C 3-12  cycloalkylamino radicals, (b) a C 3-12  cycloalkyl, C 1-16  alkylamino or mononuclear arylamino radical, or (c) a phenylalkyl radical optionally substituted by C 1-4  alkyl, C 1-4  alkoxy or halo radicals, or salts thereof, are obtained by reacting azacyclotridecan-2-one with triethyloxonium borotetrafluoride and reacting the 2-ethoxyazacyclotridecene-(2) with appropriate amines or hydrazines (R-NH 2 ), and, if desired, reacting the products with acids to form the corresponding salts. Antifungal compositions comprise the above 2-amino or 2-hydrazino-azacyclotridecenes or their salts with agriculturally acceptable acids.
Patent GB-1268055-A (GB)
Title: Improvements in or relating to methods of winding tensioning wires around containers to be pre-stressed
Inventor: BRANDESTINI ANTONIO
IPC: E04G21/12
Filed: 1968-12-05
Abstract: 1,268,055. Making wire reinforcements. SIMON-CARVES Ltd. (A. Brandestini). 3 Dec., 1969 [5 Dec., 1968], No. 57876/68. Heading B3A. [Also in Divisions B8 and F2] A tensioned wire winding 2 as used in reinforcing concrete pressure vessels is upset at point(s) near its end to produce attachment buttons suitable for transmitting tension to an anchorage 7. As shown a winding unit 1 tensions the wire 2 except for the forward section 2<SP>1</SP> where two portions 3, 4 are upset e.g. by cold working. A tensioning unit 5 then stresses the section 2<SP>1</SP> and the wire located to be held by button 4 in the anchorage 7 in a recess 8 on the wall of a groove 6 in which the winding lies. Alternatively, Figs. 3a, 3b (not shown), a single attachment button 4 may be formed in the section of tensioned wire 2 to the rear of the unit 1 and the wire, anchored as before. During the winding operation the unit 1 may move around 'the vessel on which the winding is being laid. A packing shim (10) and washer (9) may be located between the attachment button 4 and the anchorage 7 (Fig. 5, not shown). Alternatively (Fig. 7, not shown) the attachment button may be located in an annular wedge (12) fitted into a recess in the anchorage 7. In a further embodi-. ment the annular wedge may be replaced by a screw threaded sleeve (11) which is adjustable relative to the anchorage 7 (Fig. 6, not shown).