baber/WOPTO huggingface dataset:
Patent GB-496768-A (GB)
Title: Improvements in boilers, steamers and like hot water containers
IPC: A47J31/54
Filed: 1937-10-07
Abstract: 496,768. Softening water. HODGKISON, F. H. Oct. 7, 1937, No. 27248. [Class 46] [Also in Group XIII] In a water boiler for cafÚs combined with a water softener 11 of the base-exchange type and a cold water tank 7 supplied through a float -controlled valve 9, cold water delivery connections are made to the boiler directly at 25 from the tank and indirectly at 20 through the softener, these connections being adjustable by valves 26, 21. Softened or hard water or a mixture of these may be supplied to the boiler. The softener has base-exchange material 15, a bed 14 of chipped quartz and filter plates 13 ; it may be revivified by washing with water from a pipe 30 overflowing at 10, followed by passage of salt water from the tank 7, and a final rinsing. Specification 298,414, [Class 64 (i)], is referred to.
Patent GB-800286-A (GB)
Title: Low-alloy high-strength steel
Filed: 1956-09-06
Abstract: A low alloy high strength steel characterized by a yield point in the hot rolled condition exceeding 50,000 p.s.i. in 1/2 to 1 1/2 inch sections and without substantial variation within such thickness range, by a Charpy keyhole notch transition temperature below -50 DEG F. in 1/2 inch and below 0 DEG F in 1 1/2 inch sections and by the absence of Ni, Co, Nb, Ta and W, consists of 0.05 to 0.25 per cent C, 0.50 to 1.50 Mn, 0.10 to 1.00 Si, 0.30 to 1.00 Cr, 0.15 to 0.50 Cu, 0.02 to 0.10 V, 0.01 to 0.10 acid soluble Al, the balance being Fe and residual amounts of impurities, the total of the C and V being less than 0.28 per cent, and the elements being so proportioned as to produce a micro structure of ferrite and fine pearlite (no martensite) after air cooling from hot-rolling temperatures.
Patent GB-1255906-A (GB)
Title: Information recording apparatus
IPC: G11B7/125
Filed: 1970-06-08
Abstract: 1,255,906. Photographic type-composing. NATIONAL CASH REGISTER CO. 8 June, 1970 [16 June, 1969], No. 27586/70. Heading B6W. The optical path 12, Fig. 1, from a semiconductor diode laser 10 passes through a collecting lens 16, a rotating scanning disc 18 having curved slits 18a, Figs. 1 and 7, and linear slits 18b, a field lens 20, and a recording lens 23 and impinges on a longitudinally moving recording medium 25. An image 16b of the laser junction 10a is projected on to the disc, and is scanned by one of the slits 18a as the disc rotates. An image is thus formed on the tape 25 along a scan line 12b, but only at those points along the line corresponding to the positions of the parts of a slit 18a coinciding with the image 16b at instants when the laser is energized by a binary input from a data source over a lead 151. By means of a photo-detector 48 and the slits 18b, the laser operating circuit is synchronized with the arrival of each new slit 18a at a position to expose the junction 10a, by means of an oscillator 15a, which effectively divides the scan line into ten successive portions P1-P10. In this way, characters such as 71, Fig. 9, are formed on the medium 25. The medium 25 moves linewise to form a line of characters, and is then moved vertically for line-spacing. The laser may be designed for operation at room temperature, Fig. 1, or at liquid nitrogen temperature, Fig. 2 (not shown). In another form, Fig. 3, the laser 100 comprises a plurality of single junction diode lasers, printing junctions 110a-100n, which are selectively energized during the traverse of each slit 18a, the characters 72 thus being formed by short line 8, Fig. 10.
Patent GB-755305-A (GB)
Title: Method of and apparatus for annealing, welding or soldering objects, especially of non-ferrous metals
IPC: C21D9/00
Filed: 1954-09-24
Abstract: 755,305. Annealing furnace. THIEMANN, W. H. A. (Vereinigte Deutsche Metallwerke Akt.-Ges.) Sept. 24, 1954, No. 27620/54. Class 51(2). Objects, particularly of non-ferrous metal, are annealed, soldered or welded by circulated hot air or gases, the speed of the heat carrier being higher at the point where the object is situated than at other points in the circulation. A flow body 4, with hollow heat resistant walls filled with a heat storing material, carries the object to be heated in a frame 22 at the narrowest part of its interior, which may be formed as a double nozzle. A fan 15 projects into one end of the nozzle, and circulates the air or gases over streamlined electrically heated bodies 17 which also serve as guides for the current of air. The frame 22 comprises side plates 23 flush with the inner wall of the nozzle in which the frame is supported by rails 21 engaging grooves 20 in the flow body. Cover plates are provided on the frame so as to leave free only the cross section of the object being heated. Apertures may be provided in the cover plates so that the permeability of the space about the object may be adjusted with respect to the permeability of the object. The cross section of the space surrounding the flow body is greater than that of the nozzle at the point where the object is supported, and the fan may project into each end of the double nozzle formed by the flow body.
Patent GB-975755-A (GB)
Title: Improvements in or relating to electronic inverter circuits
Inventor: DINES NOEL EDWARD
IPC: H02M7/538
Filed: 1961-07-31
Abstract: 975,755. Inverting. BROOKHIRST IGRANIC Ltd. July 5, 1962 [July 31, 1961], No. 27681/61. Heading H2F. A multi-phase inverter comprises a master transistor oscillator MO whose frequency depends on the D.C. supply voltage, and slave oscillators-one for each phase-whose natural frequency is lower than that of the master oscillator and which are controlled by that oscillator and whose control circuits include saturable reactors to determine the various phases of the multiphase output, which are derived from windings such as 17. All the oscillators may be Royer oscillators (Fig. 1, not shown). The output of the master oscillator is derived across a saturable transformer winding 5 which supplies a circuit comprising a saturable reactor 6 and two potential dividers 7, 8, 9, 10, the resistors 9, 10 being in the base circuits of transistors 13, 14, in the slave oscillator SO. The centre taps of the potential dividers are connected to the common emitter connection of the two transistors and to one pole of the D.C. supply VDCS which may or may not also supply the master oscillator. The reactor 6 is such that it takes less time to saturate than the winding 5, this time determining the phase of the output of winding 17. Immediately winding 5 assumes the polarity shown (transistor 13 being conducting) the reactor 6 is unsaturated and presents a high impedance. After a given time reactor 6 saturates and the voltage across AE is developed across the resistors 7 and 8 providing a back voltage to oppose the bias developed in the winding 15 and shut off transistor 13. Transistor 14 switches on in consequence and the operation is repeated. The phase as terminals KJ lags that at AE by an amount determined by reactor 6, and by reversing winding 5 a leading phase difference may be obtained. The requisite values and connections are taken to provide the desired multi-phase output. In a modification (Fig. 5, not shown) the oscillator SO acts as a preamplifier, its output circuit including two windings controlling the baseemitter circuits of a push-pull transistor amplifier.
Patent GB-1357616-A (GB)
Title: Control lmechanism for a transverse power unit having an automatic transmission
IPC: F16H59/10
Filed: 1971-06-14
Abstract: 1357616 Change-speed control AUTOMOBILES PEUGEOT and REGIE NATIONALE DES USINES RENAULT 14 June 1971 [10 July 1970] 27724/71 Heading F2D A combined control for the manual valve 8 and parklock pawl 11 in an automatic transmission on a transverse-engined motor-vehicle, designed to economize space and ensure minimum reduction of ground clearance, comprises a vertical rockshaft 5 linked at its upper end to a manual control lever L, secured to a sector 13 linked at 25 to the control valve 8, and operating, through a spring 23, a guided ramp 20, which thrusts a spring-returned parklock pawl 11 radially into engagement with an output-mounted toothed wheel 9, disengaging movement being effected positively through a pinned washer 22. A bladespring roller detent 27 locates operative positions of the sector. In Fig. 4, nor shown, the manual lever 11 moves oppositely to that of Fig. 2 and pulls the ramp under the pawl instead of pushing it. The linkage is housed in a pressed sump attached to the gear housing on a transversely inclined joint face.
Patent GB-743709-A (GB)
Title: Improvements in or relating to rotary electric stud switches
Inventor: KIRCHEL ALAN ARTHUR
IPC: H01H19/58
Filed: 1952-11-04
Abstract: 743,709. Rotary switches; switch contacts. MUIRHEAD & CO., Ltd. Oct. 20, 1953 (Nov. 4. 1952], No. 27747/52. Class 38(5) The switch comprises a series of stud contacts 2 adapted to be connected selectively to a common contact 3 by a connector 5 of resilient sheet metal. The connector has an aperture receiving projections 10 of a rotor arm 11 and is urged against the contacts by a spring 7 acting on a stirrup 8. The connector may be of copper, beryllium-copper or silver bronze bimetal sheet and may carry contact pads 6 of sintered silver, containing a small amount of graphite to provide lubrication. The pad 6 may have a cavity locating part of the stirrup (Fig. 5, not shown), or the connector may be dished having a precious contact material attached to its lower side (Fig. 6, not shown). The contacts 6 are said to be self-aligning due to the form of the connector 5. The switch spindle 12 is located by a spring 15 and notched disc 14.
Patent GB-533176-A (GB)
Title: Improvements in or relating to adapter devices for electric lamp fittings
IPC: H01R33/94
Filed: 1939-10-13
Abstract: 533,176. Lamp-holders. MOWER, G. A. Oct. 13, 1939, No. 27869. [Class 38 (i)] An adapter to enable a small bayonet cap lamp to be used with a standard socket comprises a metal shell 21 with which an insulating block 22 is secured by a wire 17 that projects to form the bayonet pins of the plug end of the adapter, the other end of the shell 21 being reduced in size and formed with bayonet slots 28. The contacts are formed as rods 25 sliding in the block 22 and having enlarged ends 26, 27 to retain the rods in the block and to engage the co-operating contacts. The resilient plungers 11, 12 of the standard lamp-bolder serve to press the ends 27 against the lamp 20. If the rods 25 are parallel they are spaced to correspond with the contacts of the lamp 20 and have larger flat heads 26 to meet the contacts 11, 12.
Patent GB-698718-A (GB)
Title: Improvements in and relating to the assembling of roller chain links
IPC: B21L9/00
Filed: 1951-11-28
Abstract: 698,718. Making chains. LINDE, H., LINDE, E., and LINDE, O., [trading as LINDE MASCHINENFABRIK, E.]. Nov. 28, 1951 [Sept. 24, 1951], No. 27893/51. Class 83 (ii). [Also in Group XXX] A device for assembling roller chain links in which the parts are assembled in the vertical direction by means of plungers, and pass in several stages along a horizontal assembly path to which the parts are fed at corresponding intermediate stations out of hoppers is characterized in that the parts leave the hoppers vertically above the assembly path. In a machine for carrying out the invention the parts to be assembled into a chain link with the exception of the lower side-plate 10, are discharged from hoppers on to a feeding path 9 lying vertically above an assemblage path 8. The lower side-plates 10 are discharged directly on to the path 8 from their hopper 11. The sleeves 12 are discharged on to the feeding path 9 from the double hopper 13a, 13b, the rollers 14 from the double hopper 15a, 15b and the upper side-plates 16 from the hopper 17. The rollers 14 slide out of a charging funnel (not shown) with their axes horizontal into a hopper 39 of rectangular cross-section (Fig. 7). At the foot of this hopper they are pushed by a spring- loaded cam-operated sliding member 41 over a mandrel 42 which is initially horizontal but ends in the vertical direction in the feeding hopper 15a or 15b. Both the partially assembled members on the assemblage path 8 and the individual parts on the feeding path 9 are conveyed from one station to the next by gripping members 19 having recesses 18, said gripping members being adjustably supported in a slide 25. During the return movement of the grippers all members on the path 8 are held by upwardly moving pins 20. The parts fed to the assemblage stations are impaled by pins 21 and then, after the sliding parts 22 of the feeding path 9 have moved aside, are pressed by plungers 23 on to the part, or assembled parts, lying below on the path 8. The upper stage of the gripping member 19 may be provided with a spring-loaded pin 29 which, in the absence of a part, e.g. the sleeve 12, enters a bore 31 in the rear wall 32 of the machine and checks the forward movement of the gripping member. In this event, the pull-rod 33, Fig. 6, which operates the gripping members, forces a spring-loaded pin 34 against a two-armed lever 36 whereby a disengaging lever 37 is tripped and the driving coupling 38 released. The pin 29 on entering the bore 31 may close an electric contact and so actuate the lever 36 electromagnetically.
Patent GB-945184-A (GB)
Title: Improvements in or relating to plutonium extraction
IPC: C22B60/04
Filed: 1961-08-01
Abstract: 945,184. Plutonium separation. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 1,1961 [Aug. 17, 1960], No. 27905/61. Heading G6R. Plutonium is recovered by extracting an aqueous nitric acid solution of irradiated nuclear fuel with a solution of a tertiary amine in an organic solvent immiscible with water, scrubbing the organic extract with aqueous nitric acid, and then re-extracting the organic extract with an aqueous acidic solution having an acidity greater than 0À1 N and a redox potential which maintains the plutonium in the tetravalent state throughout the re-extraction. The aqueous phase from the re-extraction may be washed with a dilute tertiary amine solution in an organic solvent. The aqueous acid solution used for re-extraction is preferably a mixture of nitric acid and sulphuric acid in which the molar proportion of sulphuric acid is greater than 0À25; but as an alternative perchloric acid can be used. The tertiary amine exemplified is trilaurylamine and the organic solvent dodecane together with a minor amount of octanol-2.
Patent GB-1148005-A (GB)
Title: Wet strength resins and paper
IPC: C08G73/02
Filed: 1966-06-22
Abstract: 1,148,005. Ionic vinylamide polymers. AMERICAN CYANAMID CO. 22 June, 1966 [12 July, 1965], No. 27992/66. Heading C3P. [Also in Division D2] Ionic hydrophilic vinylamide polymers containing cationic or anionic units and -CHOHCHO substitutents attached to N atoms of the amide groups are prepared by reacting a parent ionic, hydrophilic, waterdispersible vinylamide polymer with sufficient glyoxal to form a thermosetting product, said parent vinylamide polymer having a molecular weight not greater than 100,000. (The term "vinylamide polymer" refers to polymers which, in the unglyoxalated state, contain the recurring grouping In a modification, a non-ionic vinylamide polymer is reacted with glyoxal and ionic groups are then introduced in situ into the polymer. The glyoxalated products may have molecular weights of up to 1 million. Reaction of the parent polymer with the glyoxal can be effected by heating in aqueous, neutral or slightly alkaline solution. Examples illustrate the following polymerization and glyoxalation reactions: (1) methacrylamide is copolymerized with 2-methyl-5-vinylpyridine in aqueous isopropanol using ammonium persulphate catalyst and the product is glyoxalated; (2) acrylamide is copolymerized with diallyl-dimethyl ammonium chloride as in (1) and then glyoxalated; (3) the process of (2) is repeated except that part of the acrylamide is replaced by acrylonitrile; (4) acrylamide is copolymerized with N,N-diallyl melamine in dioxane using benzoyl peroxide catalyst and the product is glyoxalated; (5) polyvinylamine is converted to polyvinylurea (containing some unreacted amine units) by reaction with potassium cyanate in an aqueous medium containing hydrochloric acid, and the product is glyoxalated; (6) the process of (1) is repeated except that the monomers used are acrylamide and acrylic acid; (7) polyacrylamide is partially reacted with glyoxal and then with sodium bisulphite at an acidic pH, the final product containing pendent -CONH 2 , -CONHCHOHCHO and CONHCHOHCHOHSO 3 M groups (M being H or Na); (8) polyacrylamide is reacted firstly with 3-(dimethylamino) propylamine in ethylene glycol (with evolution of ammonia) and then with glyoxal; (9) sodium vinyl sulphonate is copolymerized with acrylamide and acrylonitrile in acidic, aqueous medium using a potassium persulphate/Na 2 S 2 O 5  catalyst, and the product is glyoxalated; (10) acrylamide is copolymerized with p-(chloromethyl)-styrene in acetone using benzoyl peroxide catalyst, the product is reacted with trimethylamine in aqueous medium to convert the chloromethyl groups to quaternary ammonium chloride groups, and then the polymer is treated with glyoxal. The glyoxalated polymers are useful for improving the wet strength of paper.
Patent GB-983606-A (GB)
Title: Improvements in or relating to processes for the production of steroid compounds
IPC: C07C49/643
Filed: 1962-07-20
Abstract: 3 - Hydroxy - estra - 1,3,5(10) - trien - 17 - one is obtained in a process which comprises subjecting estra-4,9-diene-3,17-dione to isomerization either by heating in the presence of an isomerization catalyst or by reaction with a lower organic acid halide having from 2-6 carbon atoms.  As isomerization catalyst there may be used palladinized charcoal. The starting estra-4,9-diene-3, 17-dione may be obtained by subjecting 17-hydroxy-des A-estra-9-en-5-one to oxidation so as to form the corresponding 5,17-dione, reacting the latter with a secondary amine H.NRR1 to yield the corresponding 5-enamino - des A - estra - 5(10),9(11)-dien-17-one, condensing the latter with a 1-halogeno-3-chloro-2-butene to form 3-chloro-4,5-seco-estr-2, 9-diene-3,17-dione, subjecting the latter to acid hydrolysis to form 4,5 seco-estr-9-ene-3, 5,17-trione which is treated with an alkaline condensation agent to yield the desired estra-4, 9-diene-3,17-dione. Specifications 983,607 and 983,608 are referred to.
Patent GB-970522-A (GB)
Title: Improvements in or relating to the manufacture of napped textile fabric
Inventor: SPENCER FRANCIS TAYLOR
IPC: D06C11/00
Filed: 1963-07-16
Abstract: 970,522. Treating napped textile fabric. PEPPERELL MANUFACTURING CO. July 16, 1963, No. 28051/63. Headings D1L and D1S. The method of making shed-proof cloth having a body portion of woven fabric with a layer of predominantly cellulosic nap fibres projecting from one side, at least, and comprising coating, by spraying, the nap fibres of a conventional napped cloth, the coating material being in dilute aqueous dispersion capable of coating the nap fibres without modifying their chemical or physical characteristics, urging the nap fibres toward a position perpendicular to the body of the cloth and thereafter heating the fabric to cause the coating to set, is characterized in so mechanically working the nap, while dry, as to open the nap layer and straighten out and arrange the individual fibres so that they are disposed nearly at right angles to the body fabric, and, in directing the spray of coating material toward the free ends of the fibres thereby to wet individual fibres substantially to their junctions with the woven base fabric. For setting the coating material the fabric is heated to approximately 280‹F. and thereafter and before folding, the fabric is cooled until its surface temperature is at least as low as 200‹F. so as to eliminate stickiness of the coating material. The coating liquid preferred is a dilute, non-sticky dispersion of a thermo-setting acrylic polymer which is dispersed in water in the proportion approximately 10% polymer, 90% water. In the apparatus shown fabric F passes first beneath a nap-treating roll R<SP>1</SP> and then over a similar roll R<SP>2</SP>. It then passes, unsupported, to a second pair of nap-treating rolls and in its passage from one pair of rolls to the next is sprayed with the fibre coating liquid from sprays 5. The fabric then enters a tentering frame T which is housed in an oven K. On leaving tentering frame T the fabric passes through a cooling chamber M wherein the fabric is sprayed with cool water from atomizing nozzles N and by refrigerating coils E. From the cooling chamber the fabric is folded by device D into receptacle A. The nap treating rolls are covered with conventional 'napper roll cloth' and the bearings thereof are vertically adjustable. Rotation of the rolls is resisted by conventional friction brake-bands or belts or by electro-magnetic means, and suction nozzles V, V<SP>1</SP> are provided for removing fibres from the rolls.
Patent GB-914078-A (GB)
Title: Tube coupling connection for plastic or soft metal tubing
IPC: F16L19/10
Filed: 1960-08-12
Abstract: 914,078. Pipe connections. BAUER, M. F. Aug. 12, 1960, No. 28059/60. Class 99(1). A coupling connection for a plastic or soft metal tube 10, Fig. 2, comprises a sleeve 13 which, when tightened against a cam surface 17 causes an edge 32 to bite into an unsupported portion of the tube whilst fingers 26, Fig. 3, provided by slots 27 in the sleeve, are caused by the engagement of the shoulders 38, 39 to grip the tube. The taper angle of the cam wall may be between seven and twenty degrees.
Patent GB-1317854-A (GB)
Title: Jack assembly for tower frame construction
IPC: E04H12/34
Filed: 1971-06-16
Abstract: 1317854 Erecting towers; hoists; load engaging devices TALISMAN CONTRACTING & EQUIPMENT Ltd 16 June 1971 [6 July 1970] 28146/71 Headings B8B and B8H An apparatus for erecting a vertically sectional tower comprises a pair of hydraulic jacks 32 suspended from each of two guide frames 30 through which the tower is slidable and having their lower ends releasably engageable with the lowermost section of one of two columns 18 forming the tower, whereby the tower is liftable by the jacks to facilitate insertion and connection of a further tower section to each column. Each of the tower sections includes tongues at one end and recesses at the other, both with apertures, whereby adjacent sections can be mated and pinned, the lower sections being mated on tongues 29 on a base frame 28. The tower is slidably guided by frames 60 at each level or platform 10, it extends past. A coupling unit 40 pivoted to the lower end of each jack includes a pair of lugs movable out into engagement with brackets on the tower sections prior to lifting. The lugs 45 are formed on members 43 mounted for horizontal sliding movement between plates 41, the movement being controlled by cam tracks 51 in turnable discs 46 engaging pins 52 extending from the members 43. The lugs 45 may be replaced by pins engageable in apertures in the tower sections. (For Figures see next page)