baber/WOPTO huggingface dataset:
Patent GB-1050751-A (GB)
IPC: F16H15/04
Abstract: 1,050,751. Variable-speed gearing; securing worms on shafts; friction clutches. CONTRAVES A.G. April 2, 1965 [May 13, 1964]. No. 14017/65. Headings F2C, F2D and F2U. An infinitely variable-speed friction gear comprises four balls 5 frictionally engaging, through cup races 120, a driving (or driven) cup 12a and a driven (or driving) cup 126, the balls being frictionally engaged by pairs of rollers 6 which determine the axes of rotation of the balls 5 and are adjustable to vary these axes and so vary the gear ratio. The cup races 120 are separated from the cups 12a and 12b by pressed-in profiled rubber rings 121 which compensate for manufacturing tolerances and also serve as vibration dampers, the cups 12a and 12b being connected to their respective shafts 11a and 11b through camming ball devices 4a, 4b whereby the contact pressure of the cup races 120 with the balls 5 is automatically varied in accordance with the load. The control rollers 6 are supported on hard rubber sleeves 62 and journalled on spindles 61 diametrically arranged in worm-wheels 7 meshing a worm 8 rotatably fast with a control shaft 9 which, when turned, varies the axes of the rollers 6 and hence of the balls 5 to vary the gear ratio. The control shaft 9 is releasably secured to the worm 8 (Figs. 4 and 5, not shown) which is spring-biased at 92 to engage facial recesses 82 therein with a transverse key 90 secured to the shaft end, the control shaft being removed by axially moving it relative the worm to lift the key from the recesses and turning the shaft to permit withdrawal of the key, and hence shaft, through slots 81. In Figs. 6 and 7 (not shown) the cammed ball devices 4a, or 4b, which comprise balls 40 arranged in scolloped recesses in adjacent rings 41, 42, have the ring 41 clutched to the collar of the shaft 11a by a rubber friction disc 43, the axial force generated by the cammed balls 40 being transmitted to the cup 12a through a resilient coupling spring ring element 44. In Fig. 8 (not shown) a clutch disc 46 pre-loaded by a spring 47 through a cup and a thrust bearing 48, 49, is arranged between the output cam ring 41 and a flange 110 secured to the driven shaft 11b, the clutch disc slipping on overload when axial thrust of the cam ring 41 exceeds the pre-load at 47.
Patent GB-1051631-A (GB)
IPC: G10K9/04
Abstract: 1,051,631. Air pressure horn. TRICOFOLBERTH Ltd. March 26, 1964 [March 28. 1963], No. 12374/63. Heading G5J. An air-pressure horn has a trumpet 4 whose base touches a plastics diaphragm 8 heat welded to the plastics casing 6 of a pressure chamber 2; the diaphragm deflecting periodically to admit air into the trumpet. The pitch of the note can be raised by screwing the trumpet harder up against the diaphragm.
Patent GB-1054114-A (GB)
IPC: C08F220/44
Abstract: 1,054,114. Acrylonitrile-vinylidene chloride fibres. COURTAULDS Ltd. Oct. 10, 1963 [Oct. 11, 1962], No. 38504/62. Heading B5B. [Also in Division C3] Fibres may be wet spun from solutions of copolymers of 40 to 60 weight per cent acrylonitrile, the balance being largely vinylidene chloride, said copolymers having inherent viscosities of at least 0À80 and said solutions being prepared by copolymerizing the monomers in a solvent containing ethylene carbonate and/or propylene carbonate. Minor proportions of acidic or basic monomers may be used to improve the dye affinity of the resulting fibres. In examples solutions of acrylonitrile/vinylidene chloride copolymers in (10 and 11) ethylene carbonate and (12) a mixture of ethylene carbonate and dimethyl sulphoxide are extruded into hot water and the resulting fibres stretched in steam.
Patent GB-1225761-A (GB)
IPC: B60D1/46
Filed: 1967-03-14
Abstract: 1,225,761. Tractor hitches. MASSEYFERGUSON-PERKINS Ltd. 11 March, 1968 [14 March, 1967], No. 12040/67. Heading A1P. A tractor drawbar attachment consists of a plate 17 secured to the tractor and a frame 23 having a member 24 pivotable about a pin 21. A swingable frame 23 carrying a readily detachable drawbar 35 is pinned to the frame 23 at 37 and can be adjustably fixed in position by pins 30 passing through selected aligned holes in the frame 23 between plates 27 and 28. A locking pin 32 passes between holes 33 in side plates 31 of frame 23 and the lugs 34 on plate 17. This drawbar attachment can also be converted into an automatic hitch in that the drawbar 35 is replaced by a hitch hook 38 (Fig. 5), and a latching assembly is added to the frame 23. This latching assembly has a pair of latch brackets 43 and latch hooks 69. Each latch bracket has a latch element 47 and is pinned at 49 to one end of a lift rod 48 the other end of which has a lost motion connection through a pin 52 to a bracket 53. The brackets 53 are attached to the crank arms of the tractor power lift. Each hook 69 (see also Fig. 6), pivoted at 78 to a respective catch bracket 66 fixed to the tractor is pinned to one end of a spring-loaded rod 70 the other end of which is pin-connected at 79 to a crank 71; each crank 71 being secured to a common shaft 72 having a handle 77. The hook 69 can engage the latch elements 47 and thus the assembly can raise the frame 23 from a lower position so that the hook 38 engages an eye on the implement. In an extension of the automatic hitch when the hitch-hook is required to be placed more rearwardly, the hook 38 is replaced by an extended hook bar.
Patent GB-1227569-A (GB)
IPC: C08G18/69
Filed: 1968-06-04
Abstract: 1,227,569. Forming polyurethanes in situ in rubber compositions. SEMPERIT A.G. 4 June, 1968 [6 June, 1967], No. 26397/68. Headings C3C, C3P, C3Q and C3R. A raw rubber is mixed with at least one reactant having a labile hydrogen atom and at least one other reactant which is a dimerized or polymerized isocyanate or a blocked derivative thereof, and the ingredients of a sulphur or peroxide vulcanization whereafter the rubber is vulcanized, thereby also causing the reactants to form a polyurethane resin during vulcanization. Exemplified rubbers are natural rubber, EPDM, EPM and nitrile rubber. The exemplified reactants are dimerized toluene-2,4-diisocyanate and ethylene glycol, glycerine, hexane triol-1,2,6, paraphenylene diamine and adipic acid. In the latter case a porous product is formed. The compositions may also contain oil, carbon black, phenolic resin, and high styrenebutadiene resin.
Patent GB-1227598-A (GB)
IPC: B32B37/12
Filed: 1968-11-27
Abstract: 1,227,598. Lining machines. E. H. SCHELLING A.G. 27 Nov., 1968 [27 Nov., 1967], No. 56238/68. Heading B5N. In a lining machine suitable for lining corrugated paper, the corrugated paper blank 10 cut to the required length from a roll thereof by a crosscutter and then coated with glue is conveyed to drawing-in device 3 on a porous conveyer belt 13 on -which it is firmly held by means of a vacuum, and a printed lining sheet 11 is fed to the drawing in device 3 on a conveyer belt 2<SP>1</SP> and passes under rubber covered feed roll 16 until it reaches stop member 17 comprising a one-armed lever 19 clamped on a shaft 18 and having a leading edge 20 against which the printed sheet 11 comes to rest and is aligned by this at right angles to the belt axis. As soon as the front edge of the blank reaches detecting and switching device 14 in the form of a photo-cell which controls a switch in the circuit of solenoid valves which are provided for actuating the stop member and lever 23 which is acted on by spring 22 and which carries pressure roller 21, and interrupts the beam of the photo-cell of the detecting and switching device 14, the solenoid valve for stop member 17 becomes de-energized, an air cylinder is released and the stop member retracts and at the same time the photo-cell breaks the circuit of the solenoid valve controlling pressure roller 21 which swings upwards and presses the printed sheet against feed roller 16. On travelling further the blank 10 passes second detecting and switching device 15 also in the form of a photo-cell and this releases the drawing-in motion for the printed sheet 11, while the feed roller is coupled by an electromagnetic coupling, disengageable by the photo-cell, to a driving shaft. The blank 10 and printed sheet arrive simultaneously beneath press roller 24 which draws them in and under pressure glues together the beginning of the blank and the printed sheet, whereupon the pressure roller 21 swings downwards and releases the printed sheet from the feed roller 16 and at the same time the stop member swings upwards, the further drawing-in then being effected by press roller 24. The removal of the pressure roller and return of the stop member are controlled by a timing relay which releases the solenoid valves for the pressure roller and the stop member in dependence on the feeding speed of the blank at a given time after it has passed the detecting and switching device 15. Photo-electric detecting and switching device 25 monitors whether or not a printed sheet is conveyed to the press roll and if the beam of light of the photo-cell is not interrupted the press roll 24 lifts off.
Patent GB-1227791-A (GB)
IPC: H02K5/14
Filed: 1968-03-18
Abstract: 1,227,791. Electric motors; two-part couplings. ROBERT BOSCH G.m.b.H. 18 March, 1968 [18 March, 1967], No. 12964/68. Headings H2A and H2E. A commutator motor, particularly a D.C. motor with a permanent magnet stator, has a carrier plate 21 normal to the rotor shaft and carrying the brushes and insulated plug contacts 24 for connecting the brushes to supply cables. The plate has slots 34 extending inwardly from its periphery into which are slid plastics jackets 31 which are moulded on the contacts 24 and are formed with collars which grip the faces of the plate. The contacts, which are of flat strip form, project through the motor easing.
Patent GB-1228175-A (GB)
IPC: A23L11/00
Filed: 1967-10-12
Abstract: 1,228,175. Preserving pulses. UNILEVER Ltd. 9 Oct., 1968 [12 Oct., 1967], No. 46543/67. Heading A2D. Pulses, such as peas and broad beans, are dried by (a) freeze-drying the pulses to remove 5 to 60% of their moisture content, (b) contacting the partially freeze-dried pulses with an aqueous sugar solution, and (c) subjecting the sugared pulses to a further drying treatment, e.g. by air drying at 50‹C. or by freeze-drying. Preferably the skins of the pulses are ruptured before drying by slitting or pricking. The sugar solution concentration preferably lies between 20 and 40%, and the solution may include minor amounts of sodium chloride, sulphite and carbonate. The pulses are blanched before drying.
Patent GB-1229141-A (GB)
IPC: C07D231/52
Filed: 1969-01-06
Abstract: 1,229,141. Aminopyrazolones. ROUSSEL UCLAF. 6 Jan., 1969 [4 Jan., 1968], No. 746/69. Heading C2C. [Also in Division A5] Novel compounds of formula wherein R 1  and R 2  are each H, alkyl, cycloalkyl, aralkyl or aryl, X is chlorine or bromine and Y is an alkyl, cycloalkyl or aryl radical which may carry one or more halogen atoms, alkyl, NO 2 , alkoxy, CF 3  or amino groups as substituents, are prepared by reaction of a compound of Formula IVb with a halogenating agent. Intermediates of Formula IVb above wherein R 1  and/or R 2  are other than H are prepared by refluxing an amine R 1 R 2 NH with the compound of formula which is prepared by reacting a hydrazine of formula Y-NH-NH 2  with a compound of formula N#C-CH 2 COOR 3 , wherein R 3  is C 1-4  alkyl under basic conditions.
Patent GB-1229615-A (GB)
IPC: G01R19/145
Filed: 1968-06-11
Abstract: 1,229,615. Tyre deflation indicators. A. BOTT. 11 June, 1968 [14 June, 1967], No. 27593/68. Heading B7C. [Also in Divisions G1 and G4] A tyre failure indicator comprises an electrode which produces a voltage when it touches the road surface, the voltage being detected by the circuit of Fig. 2 which lights a lamp 13 when voltage is applied to terminal 1.
Patent GB-1232538-A (GB)
IPC: F16L15/00
Filed: 1969-07-07
Abstract: 1,232,538. Self-tapping screws. AUTOMATINDUSTRIER I GAVLE A.B. 7 July, 1969 [11 July, 1968], No. 34105/69. Heading B3N. [Also in Division F2] A plug, as shown or cap, Fig. 6, not shown, for blocking a water pipe during pressure testing, with one or more relatively sharp threads 14, co-operates with the water pipe, the threads biting into the pipe surface; the plug or cap has a sealing ring 15 pressing against the pipe and has one or more closable venting passages 16. The pitch of the threads 14 is substantially greater than the thread breadth and height. The' venting passage 16 is closed by a threaded spigot 17. The plug has two mutually angled transverse bores 20, 21 for the insertion of a tool for rotating the plug into the pipe end.
Patent GB-1232874-A (GB)
IPC: C07F7/18
Filed: 1968-07-22
Abstract: 1,232,874. Lubricants. DOW CORNING CORP. 22 July, 1968 [21 Aug., 1967], No. 34824/68. Heading C5F. [Also in Division C3] Heterocyclic silicon compounds useful as lubricants and hydraulic and heat transfer fluids have the general formula wherein R is hydrogen, hydrocarbon or halo hydrocarbon, at least 2 in each ring being hydrocarbon or halohydrocarbon and all being free of aliphatic unsaturation, R<SP>1</SP> is hydrocarbon or halohydrocarbon, Z is (CR 2 ) n O or (R<SP>1</SP>SiO) x , n is 2 to 5 and x is 0 or an integer which may be up to 10,000.
Patent GB-1233968-A (GB)
IPC: F16D13/38
Filed: 1969-03-12
Abstract: 1,233,968. Friction clutches. AUTOMOTIVE PRODUCTS CO. Ltd. 12 March, 1970 [12 March, 1969], No. 12985/69. Heading F2C. In a friction clutch comprising two, or more, driven discs 31, 32 compressed between first and second presser plates 11, 12, and between the plate 12 and a flywheel 23, only the disc 31 is formed compressible, so that clutch release travel is not excessive, but clutch engagement is smooth. The disc 31 carries asbestos-based friction pads 39 on cushion members, e.g. as in Specification 1,091,865, whilst the disc 32 carries pads 42 of ceramic or sintered bronze material. The presser plates 11, 12 are connected to rotate with clutch cover 10 by tangential metallic straps 14, 18, the straps 18 and/or release springs acting between the flywheel and plate 12 acting also to hold the plate 12 from urging the disc 32 against the flywheel until the disc 31 is engaged. As shown, a diaphragm spring 27 engages the clutch which may alternatively be provided with helical engaging springs and pivoted release levers. Wear of the plate 32 is compensated for by restricting the withdrawal travel of presser plate 12 accordingly. The plate 12 is formed with lugs 22 to which the straps 18 are attached and in which are formed apertures carrying pegs (24), Fig. 3 (not shown) which are an interference fit in the apertures and extend through the lugs to abut the bottom of recesses 21 in a ring 13 fast with the flywheel or a bracket (25) attached between the ring 13 and cover 10, at opposite ends of the travel of plate 12. Wear of disc 32 causes plate 12 to move further to the left forcing the pegs (24) further through the apertures so that they subsequently restrict withdrawal of the plate 12.
Patent GB-1238281-A (GB)
IPC: G01F1/7088
Filed: 1967-09-12
Abstract: 1,238,281. Measuring particle size electrically. BABCOCK & WILCOX Ltd. Sept.12, 1968 [Sept.12, 1967], No.41542/67. Heading G1N. Apparatus to measure the mass flow-rate of a suspension of particles of pulverized fuel in air being supplied to a burner through a duct, 1, comprises two annular electrode assemblies mounted longitudinally of the duct and spaced apart along a Venturi construction formed by a circularly symmetrical member 6 tapered at each end and mounted co-axially of the duct a potential difference of about 4500 volts being maintained between the electrodes Figs.2 and 3 (not shown), the downstream assembly is maintained at earth potential and a microammeter is connected to the assemblies to measure the current flowing between them. Pressure tapping points 10, 11, 12, are in the duct wall. The pressure drop dp 1  between the points 10 and 12 is proportional to the air-flow, whilst the ratio of the pressure drop dp 2 , between points 10 and 11, to that dp 1  determines the solids loading of the air-stream (i.e. the ratio by weight of fuel to air). The mass flow-rate of particles through the construction is the product of air-flow and solids loading. Each electrode of the upstream assembly lies in the same diametral plane as an electrode of the downstream assembly and each is of aerofoil section (20) Figs.4, 5 (not shown). Each of the electrodes of the upstream assembly has a stainless steel knife-edge strip (21) set into its downstream edge which strip facilitates the initiation of a corona discharge which will charge the particles flowing past the strip. It is stated that the particle size is proportional to the ratio of this current flow to the mass flow-rate. The measured values may be utilized to control the flowrates by means of an air inlet duct control valve 2a and fuel fed control device 4a.
Patent GB-1239758-A (GB)
IPC: D02G1/16
Filed: 1967-11-27
Abstract: 1,239,758. Finishing yarns. COURTAULDS Ltd. 26 Nov., 1968 [27 Nov., 1967], No. 53775/67. Headings D1F and D1W. In a process for texturing a continuous filament e.g. cellulose acetate, yarn to produce interlaced and/or bulked e.g. looped, effects randomly distributed along the length of the yarn, the initial yarn is drawn through an air jet e.g. by a ring twisting spindle or by winding, thereby being unwound from a yarn package i.e. there is no positive feeding of the yarn to the jet although the yarn may be accompanied through the jet by another, positively overfed, filament yarn supplied thereto by a godet drawing the yarn from a spinning jet. The final yarn product may be a core yarn, have slubs along its length, with a looped yarn the loops of which are separated by interlaced portions randomly distributed along the length of the yarn.
Patent GB-1250837-A (GB)
IPC: B04B9/12
Filed: 1969-04-11
Abstract: 1,250,837. Centrifuges. H. KRANTZ VERWALTUNGS G.m.b.H. 11 April, 1969 [27 April, 1968], No. 18710/69. Heading BID. [Also in Division F4] The drum (not shown) of a centrifuge rotates about a vertical axis in a housing (not shown) resting on three feet (not shown) which are equally spaced about the housing periphery and are each supported by a mounting (shown in Fig. 1), each mounting being associated with a limit switch 11 which is operated to interrupt the operating circuit of the centrifuge when the housing exceeds an adjustable maximum horizontal displacement. Each foot is supported by a carrier 4 comprising a plate 3 slidable within a space 2 in a block 1 mounted on a foundation plate (not shown). A sleeve 8 may be adjustably screwed along a spring-loaded radial tappet 6, and actuates the lever 10 of the limit switch 11 when the housing exceeds the maximum displacement. The spaces 2 and 15 contain oil to a level 17. The chamber 14 is arranged beneath the housing, i.e. between the block 1 and the vertical axis of the housing.
Patent GB-1253127-A (GB)
IPC: B02C19/11
Filed: 1969-03-07
Abstract: 1,253,127. Milling apparatus. KAWASAKI JUKOGYO K.K. 7 March, 1969 [12 March, 1968; 14 June, 1968; 15 June, 1968], No. 12242/69. Heading B2A. Milling apparatus comprises a container 1, having a substantially conical lower portion, and drivable about a vertical axis A, containing in operation grinding bodies 7 which rise along substantially spiral paths and fixed guide means 8 arranged to deflect the grinding bodies 7 towards the axis of the container I when they reach the top of their path. In a first embodiment, Figs. 2-3, the guide means comprises plates 8 secured to a stationary plate 16, supported by a cover 6, inwardly disposed ends 8A deflecting grinding balls 7 towards the mill axis. An enclosing wall 20 is attached to a flange 13 of the container 1, air being introduced through a suction opening 29 as fine powder is discharged by suction through a duct 28. Powder entering an annular chamber 21 within the wall 20 is drawn through passages 23 by scraper plates 22 to be entrained in the air current. In a modification, Fig. 4, a conical separator 30 is attached below the cover 6. An annular opening 31 having non-radial vanes 32, and an auxiliary member 34, produce a swirling air current in the separator 30. in the same direction as the container rotation, cyclonic action leading to discharge of the fine material, while coarse material falls through an outlet port 33.
Patent GB-1258371-A (GB)
IPC: B01J23/89
Filed: 1970-01-14
Abstract: 1,258,371. Palladium containing catalysts. INSTITUT KHIMICHESKIKH NAUK AN KAZAKHSKOI SSR. 14 Jan., 1970, No. 1772/70. Heading B1E. Catalyst compositions are prepared by impregnating a carrier with an aqueousalcoholic solution of Na 2 PdCl 4  and drying the impregnated carrier. The solution may also contain Nacl, CaCl 2 , a salt of a Group IB metal, a salt of a Group VIII metal or H 2 PtCl 6 . The carrier may be alumina, an aluminium silicate or a molecular seive. The dried composition may be heated at 200-400‹C.
Patent GB-1259053-A (GB)
IPC: H01M50/409
Filed: 1970-04-13
Abstract: 1,259,053. Polymer compositions. ESB Inc. 13 April, 1970, No. 17458/70. Heading C3P. [Also in Division H1] A battery separator in the form of a film comprises 10-30% by weight of an elastomeric resin binder blended with a gelling agent, at least 50% by weight of the binder being a vinylacetate-ethylene copolymer, the binder and agent being blended in such a manner that the gelling agent does not gel until contacted by the aqueous electrolyte. Suitable binders include polyethylene, vinyl acetate-ethylene copolymers, vinyl chloride-vinyl acetate copolymers, natural and synthetic rubber. Suitable gelling agents which absorb electrolyte include starch, flour, carboxymethyl-cellulose, methyl cellulose, polyacrylamide resins, gums such as gum arabic and inorganic gelling agents such as silica gels. Examples relate to the use of ethylene/vinyl acetate copolymer with starch and flour. The binder and gelling agent are preferably dry blended and formed into films by roller milling. The film may be either self-supporting or applied to a paper backing. The resin forms a continuous matrix for the gelling agent and the gelling agent swells when it absorbs the battery electrolyte.
Patent GB-1266715-A (GB)
IPC: B65B15/00
Filed: 1969-09-25
Abstract: 1,266,715. Bundling sticks. G. G. ERIKSSON. 25 Sept., 1969 [26 Sept., 1968], No. 47287/69. Heading B8C. Bundles 3 of sticks to be secured together by a string 9 are fed by a feed mechanism 2 to cassettes 5 on a conveyer 6 which carries the bundles 3 past a milling blade 8 which cuts a slot in one end of the sticks, a guide-wheel 11 which places the string 9 in the slot, and a pressure roller 12 which deforms the stick ends to jam the string 9 in the slots. The string 9 may be of plastics or wire. Alternatively the sticks may be drilled at one end and the string passed through the resulting holes.
Patent GB-1288234-A (GB)
IPC: C08F220/22
Filed: 1969-09-17
Abstract: 1288234 Flame-retardant filaments DOW CHEMICAL CO 17 Sept 1969 45887/69 Heading B5B [Also in Divisions C2 and C3] Articles, fibres and films are made from a self extinguishing copolymer comprising at least 85% by weight of acrylonitrile and an amount of an acrylate ester monomer having the general formula  where R is H or -CH 3 , preferably 3-bromo-2,2- bis-(bromomethyl)-propyl acrylate to provide 2-10 wt. per cent of bromine in the polymer. In Example 2, the copolymer containing the latter preferred comonomer, was pressure moulded from 40 mesh powder in a 2 inch die at 15 tons force. In Example 3, a similar polymer in zinc chloride solution, was extruded, after removal of unreacted acrylonitrile, through a multi orifice spinneret into a coagulation bath of 44% aqueous zinc chloride solution at 17‹ C. The filaments produced were washed free of salt and stretched about 1000% whilst passing through a hot water bath at 99À5‹ C. The filaments were then dried in a relaxed state at 125‹ C.