baber/WOPTO huggingface dataset:
Patent GB-1193638-A (GB)
Title: Improvements relating to Chocks for Aircraft Wheels.
Inventor: WEBB BRIAN
IPC: B64F1/16
Filed: 1966-11-09
Abstract: 1,193,638. Aircraft chocks. BRITISH AIRCRAFT CORP. Ltd. 8 Nov., 1967 [9 Nov., 1966], No.50247/66. Heading F2E. [Also in Division- E2] In a chock for aircraft wheels a wheel-engaging ramp member 19 has its lower end hinged at 12 to a base 10 and a strut member 33 is adapted to extend between the upper region of the ramp member and the base, the strut member 33 being pivoted at 20 to the top of the ramp member 19 and adapted to engage in any one of a plurality of supporting positions on the base member formed by transverse grooves 13 so as to be capable of supporting the ramp member at different angles of inclination, a bar member 24 being adapted to be located transversely across any one of a plurality of seating positions 22 spaced along its length. The bar member 24 is held in a position on the ramp member by a resilient locating device 26- 32 inc. (Fig. 4). The strut member 33 is provided with a lever 37 having a cam device 38 at its lower end by which the latter can be lifted out of engagement with a groove at the base against the load of an aircraft wheel tyre bearing on the ramp to enable the chock to be collapsed for removal from the tyre. In the embodiment shown, the ramp member is in two parts united at top and bottom by hinge pins through which the ramp member is connected to the strut member and the base respectively. An extension flap 16 hinged to the base 10 at the same end as the ramp member 19 so as to be capable of being swung between a retracted position, in which it is accommodated in the base, and an extended position in which it is positioned on the ground in front of the ramp member and on which the aircraft wheel rests.
Patent GB-1442514-A (GB)
Title: N-alkyl-3,4-xylidines and their nitration
Filed: 1974-05-31
Abstract: 1442514 N-alkyl-3,4-xylidines AMERICAN CYANAMID CO 31 May 1974 [25 June 1973] 50711/75 Divided out of 1442152 Heading C2C The invention comprises (1) compounds of the formula wherein R 1  is sec-butyl, 1-methylbutyl or 1- ethylpropyl and R 2  and R 3  are each H or NO 2 , with the proviso that R 2  and R 3  are not both NO 2 ; and (2) a process for the preparation of compounds of the formula wherein R 4  and R 5  are each H or NO 2 , with the proviso that R 4  and R 5  are not both H, by reacting a compound of Formula I above with conc. HNO 3 . Compounds of Formula I above in which R 2  and R 3  are both H may be obtained by (1) reacting 4 - nitro - o - xylene or 3,4 - xylidine with the appropriate ketone under a hydrogen atmosphere in the presence of a hydrogenation catalyst, e.g. Pd; (2) reacting 3,4-xylidine with the appropriate ketone in the presence of an alkali metal cyanoborohydride, e.g. NaBH 3 CN; or (3) reacting 3,4-xylidine with the appropriate ketone in the presence of a molecular sieve and a solvent followed by reduction with an alkali metal borohydride or H 2  and a hydrogenation catalyst. Herbicidal compositions comprise the mononitro compounds of Formula I optionally containing a dispersing agent or surfactant.
Patent GB-1318689-A (GB)
Title: Production of glycerol acetates
IPC: C07C69/18
Filed: 1971-11-02
Abstract: 1318689 Glycerol di- and tri-acetates KNAPSACK AG 2 Nov 1971 [14 Nov 1970] 50882/71 Heading C2C Glycerol triacetate and glycerol diacetate are prepared by reacting a solution of allyl acetate in acetic acid containing between 1À5 and 15 wt. per cent of acetaldehyde with a mixture of molecular oxygen and inert gas, (e.g. N 2 , carbon oxides), at 30-250 C. and 1-200 ats. absolute in the absence of catalysts. The acetic acid solution preferably contains 0À1-1À0 moles of acetaldehyde per mole of allyl acetate. The glycerol acetates may be hydrolysed by conventional methods to yield pure glycerol and the reaction may be carried out continuously.
Patent GB-1408118-A (GB)
Title: Automatic machine for inserting metal hooks into clothes hangers of plastics material and subsequently curving the metal hooks to the requeired profile
IPC: A47G25/14
Filed: 1973-11-02
Abstract: 1408118 Jointing; bending MAINETTI SpA 2 Nov 1973 [17 Nov 1972] 50931/73 Headings B3V and B3E An automatic machine for inserting metal hooks into the plastics bodies of clothes hangers has a horizontal work table 1, Figs. 1, 2, for supporting the bodies 3, and an assembly for inserting heated nails into the bodies (the nails subsequently being bent to form hooks). Each nail is forced into a hole in an associated body, causing the plastics material to melt and flow around threads on the end of the nail. The nails arrive on a guide 13 ,Fig. 2, and are successively fed by a reciprocating slide down a shoot 27 to a pair of electrodes which heat their threaded ends. Each nail is then forced by a striker 20 into a hanger 3 supported by abutments 4 and 5 and a pneumatically raisable stop 6 The table is indexed until the hanger arrives at a bending station, Fig. 8, where the nail is bent due to contact with a mandrel 35. The free end of the nail is then bent around the mandrel by a rotating tool 36, Fig. 9. A stop 37 shapes the extreme end of the hook. The bending assembly is lowered by a cam mechanism before the table is again indexed. An electric motor drives the table, the bending assembly, and a series of microswitches for synchronizing the feeding, inserting and bending and indexing operations. Alternatively, synchronization may be controlled by electronic programme, punched card, or magnetic memory.
Patent GB-1363527-A (GB)
Title: Dragline fairlead
IPC: B66D1/36
Filed: 1971-11-03
Abstract: 1363527 Fairleads RUSTON-BUCYRUS Ltd 3 Nov 1971 [4 Dec 1970] 51054/71 Heading B8B [Also in Division E1] The upper and lower assembly 10, 11 of a fairlead assembly for the drag rope of a drag line excavator are so arranged in the body of the assembly as to cause the drag rope 6 to be deflected during payout downwardly around the lower sheave 11 through an angle of from ten to forty degrees with respect to the horizontal.
Patent GB-1193555-A (GB)
Title: Calorimetric Method of Measuring Radiation by Solution Conductivity Change.
IPC: C23C18/36
Filed: 1968-10-29
Abstract: 1,193,555. Detecting ionizing radiation. UNITED STATES ATOMIC ENERGY COMMISSION. Oct.29, 1968 [Dec.19, 1967], No.51123/68. Heading G1A. Doses of pulsed ionizing radiation are measured by determining the change in conductivity of an aqueous electrolyte due to heating by the radiation. Radiation pulses from e.g. an accelerator are collimated and passed into a quartz cell having platinum foil electrodes and filled with a solution of KH 2  PO 4  and Na 2  HPO 4  which has been subjected to a large pre-irradiation to ensure reproducability of results. The conductivity of the cell, which is measured by an A.C. bridge and recorded, indicates the absorbed dose after corrections have been made for the facts that some radiation is absorbed by the electrodes and not all the solution whose conductivity is measured has been subjected to radiation.
Patent GB-1260053-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: BLOOD RAYMOND
IPC: D04B11/00
Filed: 1969-10-18
Abstract: 1,260,053. Knitting-machines. WILLIAM COTTON Ltd. 13 Oct., 1970 [18 Oct., 1969], No. 51271/69. Heading D1C. The draw mechanism of a straight-bar machine comprises two draw cams S1, S2, effective during rib, and man-rib work respectively and a common draw lever 10 and linkage. The followers are arranged to be moved relative to the cams or vice versa, or separate followers for each cam are effective as required. In the arrangement shown follower rollers 2, 3 carried by levers 16, 17 are shifted at the dictates of control discs 18, 19 via linkage and a control 25. Load on the rollers 2, 3 is relieved at change-over by a slave roller 73. The linkage includes a rocking rod 26 lockable in two positions. In an alternative embodiment (Figure 14, not shown) the cams are axially movable on a drive shaft (91) by means of two axially movable, but otherwise stationary, pegs (85, 86) engaging a cam (89) on the cam axle and moving it accordingly when raised selectively. In a further embodiment (Figure 13, not shown) each cam has its own follower levers (7, 7') selectively coupled to the draw lever by links (75, 75').
Patent GB-1283925-A (GB)
Title: Fungicidal benzopyran-5-one derivative
Inventor: ALDRIDGE DAVID CECIL
IPC: C07D493/04
Filed: 1968-10-29
Abstract: 1283925 Furo[3,2 - c]benzopyran - 5 - ones IMPERIAL CHEMICAL INDUSTRIES Ltd 6 Oct 1969 [29 Oct 1968] 51273/68 Heading C2C The novel compound 2,3,3a,9b-tetrahydro-6- hydroxy - 7,8 - dimethoxy - 2 - n - propyl - 5H- furo[3,2-c][2]benzopyran-5-one, i.e.: and metal complexes and salts thereof are obtained by the cultivation of the microorganism Helminthosporium monoceras in a nutrient medium containing an assimilable source of C and N, followed by isolation of the product from the medium, and, if desired, conversion to a metal complex or salt by adding a solution of the compound, e.g. in methanol, to an aqueous solution of the metal salt. Suitable sources of carbon are polyhydric alcohols, e.g. sucrose and glycerol, and of nitrogen, alkali metal nitrates, ammonium salts of acids, amino acids, seed meal, corn steep liquor, peptone, urea, yeast extract and meat extract. Metal salts and complexes are prepared using FeCl 3 , NiSO 4 , CuSO 4 , MnBr 2 , Cr 2 (SO 4 ) 3 , CoCl 2  and NaOH. Fungicidal compositions comprise the above novel compound together with a diluent or carrier. In the examples plants are protected by spraying or drenching with aqueous suspensions of the active compound and a seed dressing is also prepared.
Patent GB-1385919-A (GB)
Title: Process for producing nicotinic acid
IPC: C07D213/807
Filed: 1972-11-10
Abstract: 1385919 Nicotinic acid NIPPON SODA CO Ltd 10 Nov 1972 [17 Nov 1971] 52019/72 Heading C2C Nicotinic acid is prepared by oxidizing a dialkylpyridine with an amount of nitric acid of from 100 to 125 weight per cent of that theoretically required for the oxidation, at 200‹ to 235‹ C. and 25 to 45 kgm./cm.<SP>2</SP> for a period of from 5 to 60 minutes, maintaining the pH value of the reaction mixture between 1À5 and 3À5, and then concentrating and cooling the reaction mixture to crystallize nicotinic acid therefrom. A basic material may be added to the concentrated reaction mixture before cooling. Suitable starting materials include 2-methyl-5-ethyl pyridine; 2,5-lutidine; 2-methyl-5-butyl pyridine; and 2-propyl-5-ethyl pyridine.
Patent GB-1418873-A (GB)
Title: Vacuum cleaner
IPC: A47L9/14
Filed: 1972-11-13
Abstract: 1418873 Vacuum cleaners PHILIPS GLOEIL AMPENFABRIEKEN NV 13 Nov 1972 [16 Nov 1971] 52311/72 Headings BIT [Also in Division A4] A vacuum cleaner comprises a casing 1, which may accommodate a filter bag 12, and a cover 8 which is provided with a connection 9 for a suction pipe and which closes an opening through which the filter bag 12 is accessible there being provided at the opening a hinged flap 5 which may have an upturned lip 7 and which in the position shown defines one side of a slit through which an empty filter bag 12 may be inserted, the cover 8 including a member 11 whioh cooperates with said one side of the slit such that an edge portion of the filter bag 12 may be clamped therebetween. Two hinged flaps 5 may be provided together with a dust bag 4 of textile material. The filter bag 12 is of porous paper and may be provided with means for closing the open end after filling comprising a two component glue on out turned flaps 14, 15, "clinging tape", or a closing string.
Patent GB-1117172-A (GB)
Title: Apparatus for cutting continuously advanced material such as strip metal
IPC: B23D25/04
Filed: 1966-11-22
Abstract: 1,117,172. Flying shears. P. ROVELLI, and V. ROVELLI, [trading as F.I.M.I. FABRICA IMPIANTI MACCHINE INDUSTRIALI]. 22 Nov., 1966 [24 Nov., 1965], No. 52333/66. Heading B3W. A flying shear for cutting continuously advanced strip metal into lengths comprises a reciprocable shear assembly which advances with the strip during a cutting step and then returns to a start position, wherein first drive transmitting means imparts reciprocal motion to the shear independently of a strip feed mechanism, and a uni-directional coupling which transmits drive only in the strip advancing direction is provided to interconnect the feed mechanism and second means arranged to transmit a drive to the shear assembly, at the instant when the assembly attains the speed of the strip, and to maintain the inter-connection over the portion of the shears stroke during which the cutting is carried out, so as to prevent relative motion in the strip advancing direction between the shears and the strip during the cutting step. The apparatus comprises an uncoiler for delivering strip from a coil to a straightening and feeding device which forwards the strip to the flying shear. The shear comprises a stationary cutter and a vertically reciprocable cutter mounted in a frame having guide rails along which the cutting unit is reciprocated by a double acting hydraulic or pneumatic cylinder. A shaft 15 is mounted across the frame and carries two pinions 14, 14<SP>1</SP> each of which meshes wth a rack 13, 13<SP>1</SP> secured to the cutting unit 5. Secured to one end of the shaft 15 is one member 18 of an over-running clutch, the other member 19 being secured to a worm wheel 21 which is driven by a worm 22. The shaft on which the worm 22 is mounted is driven from the straightening and feeding device. The cylinder producing the flying motion is fed by a pump having sufficient capacity to rapidly accelerate the cutting unit to the speed of the material. When this occurs the over-running clutch engages and the output from the pump is throttled so that the speed of the cutting unit remains constant. If the acceleration of the cutting unit varies so that it reaches the speed of the strip in a lesser or greater time then the speed of the outer member 19 of the free wheel is increased or decreased by a known type of differential integrator unit (30), Fig. 3 (not shown), inserted in the drive from the feed rolls. This delays or advances the instant at which the cutting cycle is initiated so that the cut length is always the same.
Patent GB-1450618-A (GB)
Title: Platform assemblies for motor vehicles
IPC: B60P3/42
Filed: 1974-12-04
Abstract: 1450618 Tank vehicles:; fuel containers P LEGUEU 4 Dec 1974 [7 Dec 1973] 52420/74 Headings B7B and B7H A vehicle has two longitudinal members 9 with a first tank 10 suspended therebetween and at least one respective second tank 19, susponded by flexible members 20, on each outer side of the longitudinal members 9. As seen in Fig. 2 the vehicle has: a drop-down rear door 6 which, is mounted on pivots 7. The tank 10, which may contain water, is suspended by flexible straps (not shown) which are passed through eye members 11, Fig. 4 (not shown), at the periphery thereof. Packing members of resilient material such as neoprene: or rubber are interposed between the straps and the tank. The; tank which is of stepped construction has a tap (12) and a drain orifice (113) at the bottom of spout portion (c). The tank also has a cover (13) secured to a rim of the tank by screws (15) with an interposed sealing gasket, (13 1 ). The side tanks 19 have eye members (not shown) similar to tank 10. The platform 1 has welded brackets 23 imprisoned between longitudinal members 9 to provide lateral stability.
Patent GB-1277100-A (GB)
Title: Modified melt spinning process
Inventor: BREMNER JAMES DUNCAN
IPC: D01D5/098
Filed: 1969-10-27
Abstract: 1277100 Melt spinning process IMPERIAL CHEMICAL INDUSTRIES Ltd 8 Oct 1970 [27 Oct 1969] 52442/69 Heading B5B A modification of a melt spinning process in which filaments are extruded at a controlled speed and, after cooling and solidification, are hauled off together as a multifilament yarn or tow at a controlled higher speed comprises maintaining a multifilament threadline under tension due to stretching between extrusion and haul off and subjecting different groups of filaments in the multifilament threadline to different intermediate forwarding forces as they pass concurrently through an intermediate plastic region between the fluid region at extrusion and the solidified region at wind up, the smallest of which intermediate forces may be zero and the largest of which is sufficiently small to retain positive filament tension between extrusion and haul off. The intermediate forwarding forces may be applied by an air or steam ejector. In examples multifilament textured yarns of polyethylene terephthalate are produced by melt extruding the polymer through a multiholed spinneret and passing half of the filaments so produced to wind up through an air or steam ejector positioned at the intermediate plastic region for the filaments and the other half of the filaments directly to wind up. Whilst all the filaments in the multifilament yarn have the same average denier those that are subjected to the intermediate forwarding force exhibit a lower average birefringence, preferably by more than 20%, than those which are not treated. The use of polyhexamethylene adipamide is also exemplified.
Patent GB-1480090-A (GB)
Title: Electric cable
IPC: H01B7/295
Filed: 1974-12-05
Abstract: 1480090 Electric cable PIRELLI GENERAL CABLE WORKS Ltd 26 Nov 1975 [5 Dec 1974] 52717/74 Heading H1A An electric cable comprises at least one individually insulated conductor 10, 11, 12 within a sheath 20 of flame retardant insulating material and an insulating, flame retarding, filling material 18 between the conductors and the sheath, the materials of the conductor insulation, filling material and sheath being such that upon combustion no acidic gases are evolved and little smoke is formed. The conductor insulation may comprise non- sulphur cured ethylene-propylene rubber, crosslinked polyethylene, non-sulphur cured butyl rubber, thermoplastic rubber or thermoplastic polyethylene or flame retardent silicone rubber, flame retardent cross-linked polyethylene or thermoplastic polyethylene containing an inorganic flame retardant.  The sheath may be flame retardant silicone rubber, flame retardant cross-linked polyethylene or thermoplastic polyethylene containing an inorganic flame retardant. The filling material comprises ethylenepropylene rubber and/or butyl rubber, a filler and a flame retardant; the filler is preferably ground whiting and hydrated alumina. The insulation, filling material and sheath may all be applied by extrusion. A layer of silicone rubbercoated glass tape may be provided around the sheath.
Patent GB-1128216-A (GB)
Title: Oxidation of hydrocarbons to alcohols
IPC: C07C29/52
Filed: 1965-12-13
Abstract: 1,128,216. Alcohols. UNIVERSAL OIL PRODUCTS CO. 13 Dec., 1965 [21 Dec., 1964], No. 52775/65. Heading C2C. Alcohols are prepared by heating saturated hydrocarbons within 100‹ to 225‹ C. with a gas containing oxygen and an alkyl metaborate to form a dialkyl boric acid, hydrolysing a portion of the acid to alcohol and acid, separating and recovering the alcohol, reacting the boric acid with another portion of the dialkyl boric acid to form alkyl metaborate, and reacting the latter with further saturated hydrocarbon and oxygen. Hydrocarbons may be butane, isobutane, pentane, isopentane, hexane, heptane, octane, decane, dodecane, tetradecane and pentadecane, cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane, cyclooctane, cyclodecane and cyclododecane, and a pressure sufficient to maintain the hydrocarbons in the liquid phase is preferred. A suitable apparatus is described and by-product ketone and aldehyde products may be hydrogenated to alcohol using conventional catalysts. The oxidation of dodecane and cyclohexane is described in examples.
Patent GB-1413686-A (GB)
Title: Radio navigation beacon
IPC: G01S1/40
Filed: 1972-11-16
Abstract: 1413686 Radio navigation STANDARD TELEPHONES & CABLES Ltd 8 Nov 1973 [16 Nov 1972] 52886/72 Heading H4A A radio navigation beacon includes means for radiating waves of frequencies f1 and f1#f, where #f is an audio frequency such as 400 Hz, and means for simulating constant velocity linear motion of a source radiating waves of frequency f1  #f #f, where #f is a sub-audio frequency such as 2 Hz. The number of low frequency amplitude beats received by an observer depends upon the sine of the angle subtended at the beacon, and may vary from 10 to 230 in one minute, over a utilization sector of 60 degrees (Fig. 1, not shown). As described, a signal generator FS operates at the frequency f1 and supplies a reference aerial RA (or an array of reference aerials via a commutator C1), a single sideband generator SB1, operating at a frequency 400 Hz removed from f1, and a single sideband generator SB2 operating at a frequency 2 Hz removed from that of the generator SB1. Output from the generator SB is taken to the aerial RA, and output from the generator SB2 is taken to a commutator C2, which successively excites the aerials of a linear array LA during scanning periods. With a single reference aerial RA, scanning along the linear array may be either uni- or bi-directional, the sign of #f being changed at each half-period of commutation in the latter case. If the reference aerial RA is in the form of a linear array its overall length is made equal to the distance between adjacent aerials of the array LA, and it is commutated during the energization of each of the aerials of the array LA. Commutation of the two arrays is effected in opposite directions, and if that of the reference array is bi-directional, the sign of #f is changed at each half-period of its commutation. The single aerial or an end aerial of the reference aerial RA may be located very near to, or be the same aerial as the end aerial of the array LA at which a bi-directional commutation is half completed, at which time the power inputs from the modulators SB1, SB2 are arranged to be in phase or in phase opposition. This avoids cusp or phase transient formation. As indicated in Fig. 2, an additional high precision mode of operation may be provided in which only the frequency f1 is radiated from the reference aerial RA and frequencies f1 + (or -) f0 (unidirectional scanning) or f1+ (or -) f0 and f1- (or +) /f0 (bidirectional scanning) are radiated from the main commutated array LA. The frequency f0 may be from 1À5 to 2À5 kHz, and be utilized for, say, 5 seconds between each 60 second period of the first mode of operation. An automatic counter is fitted at a receiving station for use with the said high precision mode. Specifications 1,225,190, 1,234,541, 1,279,361 and 1,317,310 are mentioned.