baber/WOPTO huggingface dataset:
Patent GB-1431939-A (GB)
Title: Nuclear reactors
IPC: G21C13/00
Filed: 1973-07-27
Abstract: 1431939 Nuclear reactors SIEMENS AG 27 July 1973 [28 July 1972] 35987/73 Heading G6C In a nuclear reactor (which may be a pressurized light water reactor), a support framework 17 is disposed between a core barrel 10 and the pressure vessel base portion 3 for preventing falling of the barrel 10 on to base portion 3, the framework 17 bearing on the base portion 3 at a plurality of locations in the vicinity of a cylindrical portion 2 of the pressure vessel 1. The barrel 10 is suspended from a shoulder in the upper region of the pressure vessel and, normally, does not bear on the framework 17. The latter comprises a central support 18 connected by generally radial, inclined members 22, 23 to junction plates 25 each of which bears on the base portion 3. The lower rim 40 of the support 18 is spaced above base portion 3, being secured by a releasable, bolted connection 33- 37. The junction plates 25 are interconnected by a ring 26 and support a guide ring 27 which projects into the barrel 10 in the region of an inturned core-support flange 12 thereof. Each plate 25 and the support 18 narrows in a direction away from base portion 3; the smallest cross-section 30 of each plate 25 and that 31 of support 18 is, under loading of the core 5 (in the event of a mishap impairing the suspension of the barrel 10) deformed beyond the yield limit so that a substantial proportion of the kinetic energy of the falling core is taken up by the deformation. Shock stressing of the vessel is thereby prevented. Coolant flow guides may be carried on the plates 25 and plates 19 connecting the members 22, 23 to the support 18 to introduce coolant as uniformly as possible into the core.
Patent GB-1470291-A (GB)
Title: Catalyst for biochemical reaction and method of preparing it
IPC: B29C44/56
Filed: 1975-09-01
Abstract: 1470291 Immobilized enzymes W R GRACE & CO 1 Sept 1975 36001/75 Addition to 1429711 Heading C3H The invention of the parent Specification 1,429,711 which describes and claims foamable compositions comprising an isocyanate capped polyoxyethylene polyol is modified in that to the previously free isocyanate groups in a polyurethane molecule is chemically bound a residue of cellulose, pectinate, papain, bromelain, chymotrypsin, krypsin, ficin, lysozyme, lactose, amyloglucosidase, penicillin amidase, glucose isomerase, alpha-amylase, amino acid acylase, asparaginase, glucose oxidase, invertase, perioxidase, pullulanase, or rennin. Examples 1-10 describes the attachment of a selection of these enzymes to a polymer of ethylene glycol and toluene diisocyanate. Example 11 describes the conversion of penicillin G to 6-aminopenicillanic acid and Example 12 compares the efficacy of the product of the invention with those of the prior art.
Patent GB-1044757-A (GB)
Title: Process for the production of foamed cross-linked materials
IPC: C08K5/14
Filed: 1964-09-02
Abstract: Compounds of the formula <FORM:1044757/C2/1> where A, A1 are each -CH2-CH2-, -CH = CH-, or -C = C- radicals; R1, R2, R3, R4 are C1- 3 alkyl radicals; are prepared by reacting a diol of the formula <FORM:1044757/C2/2> with a dihydroperoxide of the formula <FORM:1044757/C2/3> in the presence of solvents such as a hydrocarbon or chloroform and a catalyst such as perchloric acid.  Suitable diols may be obtained by the reaction of acetylene, methylethylketone, or methylisopropylketone in the presence of KOH, the product being hydrogenated if desired to the corresponding alkane and alkene diols. The diols may be oxidized to dihydroperoxides by hydrogen peroxide in sulphuric acid.ALSO:Polyolefin foaming compositions include, with or without other peroxides, at least one compound of the formula <FORM:1044757/C3/1> where A and A1 are each one of the groups -CH2-CH2-, -CH = CH-, and -C­C-; and R1, R2, R3, R4 are C1- 3 alkyl radicals. Specified polymers include low and high density polyethylene and a copolymer of ethylene and vinyl acetate. Exemplified blowing agents are dinitrosopentamethylene tetramine, azodicarbonamide and diphenyloxide-4,41-disulphohydrazide. Carbon black, graphite, and metal oxides, carbonates, silicates and phosphates may be used as fillers.
Patent GB-887887-A (GB)
Title: Process for the production of graft copolymers
IPC: C08G81/02
Filed: 1960-10-20
Abstract: A graft copolymer is prepared by polymerizing in the presence of an alkali metal hydrocarbon catalyst a monomer capable of forming a living polymer by an anionic mechanism, mixing the resulting living polymer with a halogen-containing polymer in which at least some of the halogen atoms are capable of being removed by reaction with an alkali metal or an alkali metal hydrocarbon, and recovering the graft copolymer so obtained, the two reaction steps being effected under an inert atmosphere. Specified monomers are styrene, nitroethylene, 2-nitropropylene, 1-chloronitroethylene, alkyl acrylates, acrylamides, acrylonitrile, vinyl ketone, vinyl corbazole, butadiene, isoprene and vinylidene chloride.  Specified halogen-containing polymers are polyvinyl chloride, brominated butyl rubber, polychloroprene, halogenated polyethylene, and halogenated polypropylene. Specified alkali metal hydrocarbon catalysts are phenyl lithium, butyl lithium and sodium naphthalene.  The anionic polymerization may take place in bulk or, preferably, solution, e.g. in 1,4-dioxone or tetrahydrofuran.  The graft copolymer may be precipitated from solution using methanol, washed with methanol and water, dried and extracted with benzene.
Patent GB-1448535-A (GB)
Title: Article handling apparatus
IPC: F27B9/20
Filed: 1974-08-16
Abstract: 1448535 Walking beam furnaces STEIN SURFACE 16 Aug 1974 [22 Aug 1973] 36078/74 Heading F4B [Also in Division B8] Apparatus for moving and supporting round articles comprises fixed bars and movable bars each having regularly spaced recesses in which the said articles are disposable, and support means connected to and supporting said movable bars, the movable bars having two stable positions of support on the support means, the support means being cyclically movable whereby the movable bars when in stable positions on the support means effect transfer of articles disposed in the recesses in the fixed bars along the fixed bars, each movable bar being connected to the support means by links each of which is pivoted to the movable bar and the support means at respective positions along the hole and is pivotal through its vertical position between two stop positions on each side of its vertical position and defining the said stable positions of the movable bar. The apparatus is shown applied to a walking beam type furnace in which fixed bars 1 and movable bars 2 have spaced recesses 3 and 4 for the generally circular articles, with the movable bars 2 supported from a cyclically driven frame 10 by uprights 5, a further frame 8 and pivotal links 9, the latter being oscillatable between stops 16, 17 on the frame 10. The latter rests on legs 11 attached to an eccentric casing 12 with an eccentric head 13 keyed to a driven shaft 14 rotating in bearings 15. If continuous feed of the furnace is to be stopped, the horizontal part of the cyclic movement is neutralized by suitable movement of the frame 8 by hydraulic motor 19 thus rocking the arms 9 between the stops. The circular articles, e.g. tubes picked up by their recesses roll back exposing different parts to the heat.
Patent GB-522594-A (GB)
Title: Improvements in frames for use in making wreaths or other floral pieces
IPC: A01G5/04
Filed: 1938-12-10
Abstract: 522,594. Wreaths &c. McKAY, J. A., and CHARLES, W. (trading as McKAY, J.. A.). Dec. 10, 1938, No. 36092. [Class 93] A wreath &c. frame is built up from preshaped wire elements, some or all of which are of approximately Z-shape, and, in the case of a circular frame, consist of two curved portions b, d, Fig. 3, connected by a radial portion c. The frame is assembled by placing the elements end to end, as shown in Fig. 1, and connecting them by soldering or welding. Frames having straight sides, or fancy shaped designs, such as harps, may be similarly constructed.
Patent GB-361632-A (GB)
Title: Collapsable portable childs commode for service with the usual toilet chamber and the like
IPC: A47D15/00
Filed: 1930-12-01
Abstract: 361,632. Commodes. CHARLTON, L., 14, Northanger Road, Streatham Common, and EMERY, C. G., 13, Greek Street, Soho, both in London. Dec. 1, 1930, No. 36165. [Class 26.] A children's portable commode comprises an apertured seat a, to which are hinged two side members d and a back-rest b, the latter extending downwardly and being notched at its lower corners in order to engage with sectorshaped notches f formed in extensions of the members d. A hand-hole in the back-rest band straps i are also provided. According to the Provisional Specification, a seat-cover may also be provided.
Patent GB-1525388-A (GB)
Title: Hydraulic system for a gang lawn mower
IPC: F15B11/17
Filed: 1975-09-02
Abstract: 1525388 Lawn mower hydraulic control system JACOBSEN MFG CO 2 Sept 1975 [16 Sept 1974] 36170/75 Heading AIF [Also in Division F2] A gang lawn mower includes a tractor having an engine 67 which drives a hydraulic pump 39 with a number of sections 46, 54, 56, 57 the outputs from which are respectively directed by a valve 41 to motors 16 and 17, 31, 32, 33 which respectively drive the tractor (in forward and reverse) and three lawn mowers mounted on the tractor. The valve has a number of spools 71-75 which can be placed in various positions for operating the motors. One or both of the pump outputs used to power the mower motors 32 and 33 can be diverted by the valve to the motors 16, 17 to increase the transport speed of the tractor, similarly the pump output for the mower motor 31 may be diverted to operate hydraulic cylinders 26, 27 to raise and lower the lawn mowers. Hand levers 104, 106, 107 control the operation of the lawn mowers and a hand lever 101 controls the speed of the tractor in its transport and mowing modes. A foot operated control (109, 111) Fig. 6 (not shown) operates the mower raising and lowering cylinders 26, 27. A lockout system operates such that the mower motors 31, 32, 33 cannot be operated when the gang-mower is in a transport mode. A valve 42 between the cylinders 26, 27 causes segmential operation of the cylinders such that rear mounted lawn mowers are lowered or raised after the front mounted lawn mowers.
Patent GB-331795-A (GB)
Title: Improvements in and relating to deep sea cables
IPC: H02G15/14
Filed: 1929-11-26
Abstract: 331,795. Felten & Guilleaume Carlswerk Akt.-Ges. Dec. 13, 1928, [Convention date]. Cable joints; sheathing or covering, connection of. - To prevent a gap being left between the cable protection b and the protecting sleeve a of a loading-coil section of a deep sea cable if the cover b contracts under pressure, the sleeve is made with lead-filled longitudinal slots c so that, under, pressure, the internal diameter of the sleeve will follow the diameter of the wire rope, the lead being extruded.
Patent GB-302655-A (GB)
Title: Compressed-air brake for lift cages
IPC: B66B5/18
Filed: 1928-12-08
Abstract: 302,655. Jordan, F. Dec. 19, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Fluid-pressure. - In braking apparatus for lift cages in which the brake is applied by compressed air, the actuating valve is under the influence of a spring acting against the air pressure so that the valve can be readily opened and the piston applying the gripping jaws is retained in the engaging position by ratchet gear. The compressed air pipe 1 opens into a valve chamber 2 normally closed by a valve 3 lightly loaded by a spring 3a and also acted on through a spindle 7 by a stronger spring 6 which tends to open the valve. On breakage of the hoisting rope or on the attainment of excessive speed, the spindle 7 is raised automatically or by hand to open the valve 3 and the compressed air acting on a piston 15 depresses the piston and through a spring 14 and connecting linkage 12 applies the gripping shoes 9 to the guide rail 10. To prevent the release of the grips if the compressed air supply fails, a ratchet 17 on the piston is engaged by a holding pawl 18.
Patent GB-626897-A (GB)
Title: Improvements in colour photography
IPC: G03C7/30
Filed: 1946-12-09
Abstract: 626,897. Colour photography. COOTE, J. H., AUSTIN, A. ST. J., and HORNSBY, K. M. Dec. 9, 1946, No. 36297. Addition to 608,507. [Class 98 (ii)] The process of the parent Specification, which describes production of a three-colour photographic image by three successive operations of providing one side of a base with a silver halide colour-former layer and printing this layer from a colour separation record; followed by simultaneous development of all the layers to colour ; is modified in that the base is first provided with two of the layers, the outer one of these is printed, the third layer is formed on the already printed layer, this third layer is printed, the layer adjoining the base is printed through the base, and then all layers are developed to colour. Specification 585,477 is referred to.
Patent GB-1437947-A (GB)
Title: Pulse shaping circuits
IPC: H04Q3/42
Filed: 1972-08-04
Abstract: 1437947 Automatic exchange systems; pulse shaping circuits MARCONI CO Ltd 18 July 1973 [4 Aug 1972] 36483/72 Headings H4K and H3T A pulse corrector for modifying a train of dialling pulses is operative to measure the overall duration of the first break and make pulse and to produce a modified pulse train having the same number of pulses and the same pulse repetition rate as the input pulse train but having a constant break or make pulse duration which is determined by the measured overall duration. An input counter 52 is enabled by the leading edge of the first break pulse and is stepped via a frequency divider from a clock source until the occurrence of the leading edge of the second break pulse, assuming the train comprises at least two pulses. The count is transferred to a register 64 where it is used in conjunction with a translator 74 to decrement a count to 100 output counter 72 by a value representative of the required break period. The leading edge of the second breakpulse also causes control circuit 25 to set output bi-stable 70 to start the first output break pulse, the output counter 72 resetting the bi-stable 70 to end the break period. Input counter 52 is reset by the leading edge of the second input break pulse and restarts counting. Subsequent input break pulse leading edges cause the setting of the output counter 72, the setting of bi-stable 70 and the resetting of input counter 52 but not an updating of the register 64. An end of pulse train is indicated by a comparator 80 when the count of input counter 52 exceeds that stored in the register 64. The production of the last break pulse is initiated as before but because no input break pulse leading edge has been received input counter 52 continues counting until it reaches a count of 10, a count not possible for a combined break plus make period for any of the possible input repetition frequencies. Count to detector 62 then causes the corrector circuit to become inactive after the break pulse just initiated has been completed. A pulse train comprising a single pulse results in input counter 52 counting to ten without register 64 having been previously set. In this case the required break period cannot be determined by translator 74 from the repetition frequency and the circuit acts to produce an output break pulse corresponding to the lowest repetition frequency usable with the device and represented by an input count of 9 in the particular embodiment. A filter 23 in association with clock pulses is used to remove transient pulses and the effects of contact bounce from the incoming pulse train.
Patent GB-394886-A (GB)
Title: Locking device for detachable heel top lifts for shoes and the like
IPC: A43B21/39
Filed: 1932-12-28
Abstract: 394,886. Detachable heel pads. GRIESHEIM, W., Stotternheim, near Erfurt, Germany. Dec. 28, 1932, No. 36688. [Class 17 (iii).] Two laterally resilient locking portions each having a snap projection i, i<1> are formed in a locking bar f forming part of one of a series of dovetailed guide bars c, d, e on a shoe heel by a slot g and engage in corresponding retaining notches in one of a series of guide bars attached to a rubber top lift when it is slipped on to the heel. The top lift may be released for removal by pressing the forked or notched end of a tool against the ends of the bar f. The plate b which carries the guide bars f is secured to the heel by screws in slots q.
Patent GB-398379-A (GB)
Title: Metal spoke wheel for waggons, carts and the like
IPC: B60B1/00
Filed: 1932-12-28
Abstract: 398,379. Vehicle wheels. SCHULTE, G., Meinerzhagen, Westphalia, Germany. Dec. 28, 1932, No. 36689. Convention date, March 2. [Class 144 (i).] The rim and spokes of a metal wheel consist of closed hollow bodies which are made easily detachable by the provision on the spokes of conical shoulders which engage with correspondingly-shaped cups in the inner rim wall. As shown in side elevation by Fig. 1, and in diametral section by Fig. 2, the rim a consists of a continuous hollow body and the spokes c are made of two channel-shaped elements welded together and shaped to produce a boxformation c<3> at the inner ends and conical shoulders and pins c<4> at the outer ends. The wheel hub e has a spoke flange f with holes for accommodating bolts g which also pass through apertures in a loose disc h and in the ends of the spokes. In assembly, the spoke-pins c<4> are placed in the rim-apertures with a soft metal washer interposed the ends c<3> of the spokes being placed one on the other. The hub e is then loosely inserted at the central aperture, the loose disc h positioned, and the bolts g tightened. Washers m may be interposed between the spokes c and hub e. The removal of a single spoke for replacement can be effected bv removal of the loose disc h and of the bolt g holding the spoke to be removed. The inner ends of the spokes and the engaging surface of the hub may be tapered so that when a spoke is driven into position a tightening in the radial direction is effected. A dished wheel can be constructed, as shown in Fig. 7, by providing the flange f and disc h with opposite surfaces inclined to the hub axis and by giving the hub a corresponding taper.
Patent GB-1006970-A (GB)
Title: Improvements in or relating to the vulcanization of rubber
Inventor: PHILPOTT MAURICE WOODALL
IPC: C08K3/30
Filed: 1960-10-26
Abstract: An alkali metal sulphide, or hydrosulphide or an organic compound of the formula R1HN(X)C=S, in which X represents an alkyl or aryl group or the group NH2R3 and in which R1, R2 and R3 are the same or different and represent hydrogen or an alkyl or aryl group, said organic compound being capable of tautomerism to the thiol form is used as an activator for a vulcanizable composition comprising a natural or synthetic rubber, a zinc compound, sulphur, and a sulphur-bearing vulcanization accelerator.  Compounds exemplified are sodium sulphide, thiourea, diethylthiourea, diphenyl thiourea, and thioacetamide. The composition is especially suitable for the low temperature vulcanization of latices and vulcanization in the presence of copper compounds.
Patent GB-447144-A (GB)
Title: Improvements relating to metallic framing for partitions and similar structures
IPC: E04B2/78
Filed: 1934-12-24
Abstract: 447,144. Partition framing. CONSTRUCTORS, Ltd., and BROWN, L. A. L., Tyburn Road, Erdington, Birmingham. Dec. 24, 1934, No. 36924. [Classes 20 (ii), 20 (iii), and 20 (iv)] Metallic framing for partitions and like uses, wherein the framing is adapted to hold panels 5 formed of transparent or non-transparent material, comprises T-section bars formed of bent sheet metal wherein the parts 6b of the sheet metal which are to constitute the webs of the T-bars are formed with a plurality of pairs of depressions which register in the finished bar to form tapered holes 6d. These holes may be tapped to receive bolts, or selfthread cutting screws 7 may be used to screw into these holes to secure resilient clamping strips 8 with inturned ends, which form channels with the flanges of the T-bars to receive the edges of the panelling. A modified form of T-bar comprises angle-bars, back to back with securing strips placed across the outstanding flanges to join the bars.
Patent GB-1494954-A (GB)
Title: Manual change-speed gearbox for a motor vehicle
IPC: F16H61/24
Filed: 1976-08-25
Abstract: 1494954 Change-speed control; springs BRITISH LEYLAND UK Ltd 25 Aug 1976 [9 Sept 1975] 36992/75 Headings F2D and F2S In a manual five-speeds and one reverse three channel gate-shift on a motor vehicle, wherein entry into either side channel from the central 3-4 channel is resisted by a doubleacting spring 7, coiled around a spool 2, linked to the cross-shift movement of the manual shift lever, and having terminal limbs reacting on the casing and on opposite sides of a fixed post 6 and a parallel peg 5 eccentrically carried by the spool 2, the spring 7 is formed by two oppositely handed coils 8, 9, joined by a hair pin section 10 arranged on the opposite side of the post 6 and peg 5 to a terminal limb 11 of one coil 8, the terminal limb 12 of the other coil 9 reacting on the casing 1. Thus, bodily movement of the peg 5 to the left of Fig. 1 as the spool 2 is turned by cross-shift movement from the central 3-4 channel towards the 1-2 channel is resisted by the coil 8 alone, whereas movement towards the 5-R channel is subject to the increased resistance of both coils 8, 9, thus avoiding any tendency to overshoot the central channel in cross-shifting from the 1-2 channel.