baber/WOPTO huggingface dataset:
Patent GB-1264376-A (GB)
IPC: B23K13/02
Filed: 1969-06-26
Abstract: 1,264,376. Welding by pressure; removing weld flux. AMF Inc. 26 June, 1969 [22 Aug., 1968], No. 32230/69. Headings B3L and B3R. Apparatus for welding the longitudinal gap in metal tubing comprises means for advancing the tubing while bringing the edges thereof together at a weld point, meansfor electrically heating the edges to bring them to welding temperature by the time they reach the weld point and within the tubing a member, fixed with respect to the weld point and having a bifurcated portion under the weld point with a clearance space between. the legs of the bifurcated portion to provide a passage extending from one side of the member to the other through which spume from the weld may pass.. Spume is a spray of metallic or-oxide particles thrown off internally of the tube. by mechanical and electromagnetic action. A metal tubing 14 Fig.. 1 is advanced in the direction of the arrow 15 through rollers 16, 18 which bring its edges 10, 12 together at weld point w, the edges having been heated by current of 50 kc: per sec. or higher applied by contacts 20, 22. An assembly 24 comprising a mandrel 26 and a scarfing tool 28 is supported within the tubing on a member 30 and wear strips 32 on the mandrel engage the tubing. The mandrel has a bifurcated portion under the weld point with a clearance space 36 between the legs of the bifurcated portion through which spume from the weld may pass to the advancing tube and be carried away. An impeder is supported -by the mandrel to terminate a short distance upstream from the weld point, the impeder being rods of sintered magnetic oxide insulation material and being cooled by coolant supplied through an inlet 46 and passing through the impeder into the space 36. A jet of air or gas from a supply 51 is mounted adjacent the space 36 to blow spume through the space. In a modification the mandrel 56, Fig. 4, is of bronze and has an upstream portion 60 and a bifurcated portion formed by rods 64, 66. An induction coil 68 or contacts as before may be employed and an impeder bar 70 is mounted in the portion 60 of the mandrel. The rods 64, 66 may be round, semi-circular or rectangular. In another embodiment an impeder bar is mounted on each bifurcation rod and in yet another, two spaced pairs of bifurcation rods are provided with an impeder between each pair. In a modification the two bifurcation rods forming the clearance space are hollow and contain impeder bars and insulation may surround the bifurcation rods. In another embodiment anassembly 120, Fig. 14, comprises a mandrel 120 with an eye bolt 124 for a scarfing tool, legs 132, 134 in a bifurcated portion and impeder bars 136, 138. Cooling means for the impeder bars comprise tubes 144, 148 discharging at 162, 164 and a tube 166 supplies air or gas to the space 130. For use with small diameter tubing the scarfing means is omitted and a slotted impeder with a magnetic core is employed. A cross over connection may be provided upstream of the impeder for cooling fluid so that discharge into the tube is avoided. Argon may be present about the weld.
Patent GB-1264428-A (GB)
IPC: C09D167/00
Filed: 1969-05-21
Abstract: 1,264,428. Electrocoating compositions. E. I. DU PONT DE NEMOURS & CO. 21 May, 1969 [1 July, 1968], No. 25983/69. Headings C3B, C3P and C3R. [Also in Division C7] Electrocoating compositions comprise an aqueous dispersion having a film-forming polymeric binder content of 0À5-40% by weight and a pH of 6À5-9À5, said binder consisting of (A) 25-75% by weight, based on total binder, of one or more high acid carboxylic polymers having an acid number of 35-150 and (B) 75-25% by weight of one or more low acid number carboxylic polymers having an acid number of 1-30, the high and low acid polymers having a number average molecular weight of 1000 to 100,000, a difference in acid number of at least 15, and a glass transition temperature in the range 250-395‹ K.; said binder being neutralized with sufficient of a water-soluble basic compound to form a waterdispersible anionic poly electrolyte. In a modification, polymer (A) may be a hard carboxylic polymer having a glass transition temperature of 275-340‹ K. and polymer (B) a soft carboxylic polymer having a glass transition temperature of 175-285‹ K., the difference in glass transition temperature of the polymers being at least 10‹ K., and the polymers have acid numbers of 1-300, with the binder having an overall acid number of at least 5. The compositions may also include pigment particles in a pigment volume concentration of less than 30%, and 1-30% by weight, based on the binder, of a heat reactive condensate. The pigment may be inorganic or organic; iron oxide and strontium chromate are preferred pigments. Preferred heat reactive condensates are hexamethoxymethylmelamine and butylated melaimne-formaldehyde resin. In the examples the following acid polymers are used as component (A) or (B): (a) styrene / methyl methacrylate / 2 - ethylhexyl acrylate / 2 - hydroxypropyl methacrylate / (meth)acrylic acid copolymers, (b) a reaction product of styrene/allyl alcohol copolymer with tall oil fatty acid and maleic anhydride, (c) a reaction product of styrene / allyl alcohol copolymer with maleic anhydride, (d) a reaction product of Epon epoxy resin with tall oil fatty acid and maleic anhydride, (e) a reaction product of epoxidized soya bean oil with 12-hydroxystearic acid and maleic anhydride, (f) poly-(12-hydroxystearic acid) and (g) a reaction product of hydrogenated bisphenol A, 1,5-pentane diol, dehydrogenated castor oil and trimellitic anhydride. In the examples, the binder is neutralized with dimethylethanolamine and, in some cases, diacetone alcohol and/or acetone is included in the compositions. The compositions can be modified to serve as replenishment concentrates for electrocoating cells; in such cases, the polymeric binder content is increased to 40-95% by weight and the binder is neutralized with 1-10%, by weight of the binder, of a water-soluble basic compound. The copolymers (a) mentioned above are prepared by polymerizing the corresponding monomers in diacetone alcohol using di-t-butyl peroxide as catalyst.
Patent GB-1265808-A (GB)
IPC: A47G9/00
Filed: 1968-06-14
Abstract: 1,265,808. Purification of clay. ENGLISH CLAYS LOVERING POCHIN & CO. Ltd. 10 June, 1969 [14 June, 1968], No. 28592/68. Heading B2H. [Also in Division C1] Clays e.g. kaolin, are purified by a froth flotation process in which the clays are first subjected to a conditioning step comprising slurrying the clay with water to give a solids content of at least 30%, adding sufficient alkali to give an alkaline pH, a collector for the mineral impurities, a deflocculant and an activator and mixing for sufficient time to dissipate therein at least 20 horsepower hours of energy per ton of dry clay. A suitable deflocculant is sodium silicate in an amount of from 0.45 to 5.5 kg/tonne dry clay, the alkali may be ammonium hydroxide, the collector, a fatty acid from 8-20 carbon atoms e.g. oleic and lauric acid and the activator a soluble salt of a heavy metal or alkaline earth metal e.g. lead acetate and calcium chloride. The conditioned clay is then subjected to a froth flotation process by diluting to give a solids content, of from 15-30% by weight and adding a frothing agent for example fine oil or a methyl or ethylether of polypropylene glycol and frothing in a flotation cell equipped with a central submerged impeller.
Patent GB-1288091-A (GB)
IPC: B60S1/34
Filed: 1969-01-03
Abstract: 1288091 Windscreen wipers JOSEPH LUCAS (INDUSTRIES) Ltd 15 Dec 1969 [3 Jan 1969] 537/69 Heading A4F Windscreen wiper mechanism comprises means for moving a wiper blade carrier substantially linearly relatively to one edge of the windscreen to be cleaned, and guide means for converting linear movement of the carrier to angular movement thereof during a portion of the wiping cycle. A blade carrier 10 pivotally mounted on a bellcrank lever 11 is propelled horizontally to and fro by the engagement of a nut 12 on which the lever 11 is pivotally mounted, with helical threads on a shaft 14 driven by an electric motor 16. Near the end of the travel of the carrier 10 in one direction a roller 20 carried by the crank 11, and engaging in a channel 19 moves into a Z-shaped portion of the channel and causes the blade carrier 10 to move arcuately. Wiper systems comprising two cable driven wiper blades are also described.
Patent GB-1295431-A (GB)
IPC: B65D88/66
Filed: 1968-08-19
Abstract: 1295431 Discharging hoppers BULK UNIT LOAD SYSTEMS Ltd and G W SNAPE 19 Nov 1969 [19 Aug 1968] 39650/68 Heading B8S Container 14 carried by stillage 13 is discharged by being mounted on a discharge apparatus which comprises a vibratory frame 12 mounted resiliently on a stationary base 10. The frame 12 carries vibrators 33, 34 and also a valve, the outlet 15 of container 14 engaging the valve and the material being discharged by conveyer 16. Two such devices may be mounted side by side to discharge into a common hopper and the discharge conveyer may be a screw conveyer.
Patent GB-1302885-A (GB)
IPC: G01J5/00
Filed: 1970-03-03
Abstract: 1302885 Lamps; lighting fittings GILFORD INSTRUMENT LABORATORIES Inc 3 March 1970 10115/70 Heading F4R [Also in Division G2] In the transmission of optical radiation through an apparatus the light is divided into a plurality parts through conduits 218, 220 which parts are then recombined in a mixing chamber 18. the parts having a predetermined relation to each other. The apparatus has a distributing chamber 12 connected by ten conduits such as 218, 220 to the mixing chamber which has a reflective surface 204 and an outlet 16. As shown, light from an external source passes into the distributing chamber via irises 270, 274, 278. Screws 250 projecting into each conduit, such as 220, 218, are adjusted so that the contribution to light passing through the port 16 from each conduit is equal. Using the light emission from the port with all the shutters open, like 236, as a reference zero absorbance, an accurate calibration scale of absorbance can be obtained by successively closing the shutters as shown at 228. The apparatus may have no irises, but instead more than one apparatus may be connected in cascade, Fig. 6 (not shown). In another embodiment Figs. 2, 3 (not shown), the source of light is mounted in the distributing chamber. To make a filter of known absorbance, a cascade (302), Fig. 7 (not shown), emits a light beam of equal intensity to that of another beam passing through an adjustable iris (310). The absorbance of the cascade is preset by closing suitable shutters, and a filter (312) place in the path of the light beam from the iris is ground and polished until its absorbance is the same. The light intensities are compared by using an oscilloscope.
Patent GB-1305907-A (GB)
IPC: C04B35/14
Filed: 1969-06-03
Abstract: 1305907 Foundry mould compositions FOSECO INTERNATIONAL Ltd 22 May 1970 [3 June 1969] 27976/69 Heading C3N [Also in Division C1] Bonded particulate refractory materials, such as sleeves and tiles for use in contact with molten metal in foundry moulds and moulds per se, are produced in a process which comprises providing on the refractory particles a coating of a metal powder or flake which will increase the surface thermal conductivity of the particles, forming a mixture of the particles with a heat settable binding agent, forming the mixture to the desired shape and applying heat and pressure thereto to form the desired bonded material. The metal powder or flake is preferably aluminium powder but powders of brass, nickel or stainless steel may also be used. The refractory material may be silica sand, carbon (fibrous or particulate), pulverized fuel ash, alumina or a calcined ball clay, preferably having a particle size of - 22 to + 60 B.S.S. mesh. The binding agent may be a mica- or phenol-formaldehyde resin or a polyol/polyisocyanate system. The application of heat is preferably at a temperature of 250-350‹ C. and the pressure at 2 to 200 p.s.i. The presence of the coating leads to an increase in the thermal conductivity of the mixture and thus allows rapid heating and curing of the binding agent.
Patent GB-1308041-A (GB)
Title: Mobile dispenser for radioactive sources
IPC: G06M1/22
Filed: 1968-11-26
Abstract: 1308041 Shielded containers NATIONAL RESEARCH DEVELOPMENT CORP 26 Feb 1970 [26 Nov 1968] 56109/68 Heading B4Q [Also in Division A5] A mobile dispenser for sources of radio active caesium for use in hospitals in the treatment of tumours of the uterus comprises a lead chamber 11, 12 containing a magazine 13 mounted on a trolley (not shown). The magazine has three series of holes arranged as concentric circles 14, 15, 16, each circle having the same number of holes, viz. twenty, and the holes of the circles being in radial alignment. Each hole contains a radio active source. the sources being of three different strengths accommodated, respectively in the three series of holes. The chambers 11, 12 has three series of holes 19, 20, 21 corresponding to the magazine holes whereby a flexible nylon probe 23 wound on a wheel 24 having a handle 24a may be advanced from left to right through the chamber to eject a selected source and deposit it in an applicator 30. The magazine 13 is mounted on a shaft 17 rotatable by a selector wheel 18 which selects a particular hole in the circles 14, 15, 16. The particular circle 14, 15 or 16 is selected by mounting the probe wheel 24 on an arm 22 extending from a shaft 37 rotatably mounted in the trolley. A further arm 36 on the shaft supports a block 32 in which is mounted a holder 31 carrying the applicator 30. A hand wheel-operable slideway 33 on the arm 36 is adjustable with reference to a scale 34 and enables a selected channel 29 in the applicator 30 to be aligned with the probe 23. The arm 36 may be raised or lowered into four different positions by a cam 35 to rotate the shaft 37 whereby in three of these positions the probe 23 is aligned with a selected one of the circles 14, 15, 16 and in the fourth position a gate 39 mounted on the shaft closes all the magazine exits. Each circle of holes 14, 15, 16 has a corresponding counter wheel 26, 27, 28 secured to the shaft 17, the periphery of each wheel having numbers one to twenty thereon, one of these numbers appearing through an aperture 45 provided in the periphery of a cover 44 surrounding the associated wheel. Initially, the numbers twenty would show through each aperture 45 but as a source is used, the corresponding cover 44 is rotated one step relatively to the counter wheel whereby the number showing through the aperture is reduced by one. The construction of the covers 44 and the cam mechanism whereby the appropriate cover is stepped by the probe 23 is described with reference to Figs. 4a-4b, not shown. Return of a source to the chamber 11, 12 causes resetting of the respective counter to its previous position through motion transmitted through a cable 54a. The applicator 30 serves as a vaginal box, an alternative applicator 30a in a holder 31a serving as a uterine tube.
Patent GB-1310887-A (GB)
Title: Rings
IPC: A44C9/00
Filed: 1969-11-27
Abstract: 1310887 Rings W J GRANT 28 Sept 1970 [27 Nov 1969] 57993/69 Heading A3H A ring comprises an annular base member 10 having a central raised portion 11 and portions 14, 15 of reduced external diameter which receive annular elements 18, 19; the ring being formed by sliding the elements 18, 19 onto the portions 14, 15 then displacing the material of the portions radially outwardly by a cold deforming operation to hold the elements against raised portion 11. The sections of the ring 10, 18, 19 can be ornamented separately before being assembled together and more than two elements can be used.
Patent GB-1320346-A (GB)
Title: Specimen stages for electron microscopes
IPC: H01J37/20
Filed: 1970-05-22
Abstract: 1320346 Electron microscopes ASSOCIATED ELECTRICAL INDUSTRIES Ltd 19 May 1971 [22 May 1970] 24916/70 Heading H1D A specimen stage for an electron microscope has a specimen holder supported in gimbals 2, 4 which can be tilted about two perpendicular axes by means which comprise two flexible drive members 26 and 31 connected at one end respectively to gimbals 2 and 4 and at the other end to respective drive means 6 and 8. One end of member 26 (made of wire) is connected to the circumference of drive pulley 6 and the other end to a pulley connected to gimbal 2 such that rotation of pulley 6 produced by push rod 15 rotates gimbal 2 about axis 3. Similarly rotation of drive pulley 8 produces rotation of gimbal 4 about axis 5. Drive pulley 8 is slidably held on a support bracket 11 and biased by spring 12 to retain wire 31 taut. Wires 30 and 31 are each attached to pulley 8 and to the same point 34 on the rim of the pulley 35 on axis 5. When the outer gimbal 2 is rotated about axis 3 the wires 30, 31 are wound or unwound on the pulleys 33, 37 on axis 3 causing pulley 8 to slide relative to bracket 11. The push rods 15, 16 are slid longitudinally in grooves provided in a support 14 (Fig. 5, not shown) by means of respective drive shafts 24, 25 coupled through universal telescopic joints to worm gears 22, 23. A return spring 40 (not shown) is attached to rod 16 and bias spring 12 acts as return spring for rod 15. The push rods are held in position by means of a stirrup 41 (Fig. 3, not shown) attached to the top of support 14 by means of which the specimen cartridge can be mounted in the electron microscope.
Patent GB-1327342-A (GB)
Title: Amalgam cartridge and method of making same and method and apparatus for dispensing amalgam from a cartridge
IPC: A61C5/66
Filed: 1971-06-22
Abstract: 1327342 Amalgam cartridges D G SMITH 22 June 1971 29221/71 Heading B8C [Also in Division B1] An amalgam cartridge 100 is formed from a flexible plastics extrusion of hollow, dumb-bell section by heat-sealing the ends 166, 168 to form two compartments 102, 104 interconnected by passage 108 which is held closed by a spring-clip 110 to separate powder and mercury in compartments 104, 102, clip 110 having holes 136 by which the cartridge is correctly aligned in a mixing and dispensing apparatus (see Division B1). Mercury and powder are introduced into their compartments from nozzles under vacuum conditions before sealing. In an alternative form, passage 108 is closed by a frangible membrane, and since a closure clip is unnecessary, alignment recesses are formed on the cartridge. The mixing and dispensing apparatus operates to squeeze the compartment 104 between slider blocks 200, 202 which force the mercury into compartment 102, whereupon a rotatable mixer 256 is lowered so that members 284 rapidly squeeze and release the compartment 102 as they are driven by an eccentric crankshaft 272 from motor 260. After mixing is completed and mixer 256 is retracted, sliders 300, 302 are brought together so that recesses 306, 308 may shape the compartment 102 into a cylinder again. Twin cutters are then lowered on pivoting member 410 to cut off the ends of compartment 102, the amalgam then being ejected into a suitable instrument by a hand operated plunger which passes through the compartment.
Patent GB-1336905-A (GB)
Title: Devices for converting linear motion to rotary motion
IPC: F16H25/20
Filed: 1971-03-11
Abstract: 1336905 Screw and nut gearing TRIANGLE CONTROLS Ltd 9 May 1972 [11 March 1971] 6634/71 Heading F2Q [Also in Division H1] A mechanism for operating limit switches 16 comprises a nut 22 which moves axially along a threaded spindle 21, on rotation of spindle 21, the nut 22 carrying a projection 23 which, at predetermined end positions, is adapted to engage projections 36 on stops 34, 35 which are rotated at a reduced speed from spindle 21, thereby causing a plate 26 to tilt and actuate a switch operating plate 17. A notch 24 in the periphery of nut 22 engages a rod 25 extending between end plates 26. The stops 34, 35 are adjustably positioned on a threaded shaft 32.
Patent GB-1336992-A (GB)
Title: Wrenches
IPC: B25B7/12
Filed: 1970-12-21
Abstract: 1336992 Wrenches T R COUGHTRIE 21 Dec 1970 [1 Jan 1970] 107/70 Heading B4W A wrench comprises a first handle 10 having a first jaw 11, a member 12 having a second jaw 13, a second handle 15 and a toggle link 16 which engages an abutment 17 which comprises a resilient member 19 which is compressed as the handle portions are moved together, the compression of the resilient member acting to limit the force which can be applied between the jaws. The abutment also consists of a part 20 in engagement with the toggle link 16; the engaging surfaces being shaped so as to wedge when the resilient member has been compressed a predetermined extent. In an alternative embodiment, Fig. 2 (not shown), the resilient member is in direct engagement with one end of the toggle link which is shaped to wedge in the bore in the first handle when the resilient member has been compressed a predetermined extent.
Patent GB-1339324-A (GB)
Title: Production of polyoxadiazole solutions
IPC: C08G73/08
Filed: 1972-01-26
Abstract: 1339324 Polyarylene oxadiazole solutions IMPERIAL CHEMICAL INDUSTRIES Ltd 26 Jan 1972 [2 Feb 1971] 3712/71 Heading C3R [Also in Division B5] A solution, having inherent viscosity > 1À5, of of polyarylene-1,3,4-oxadiazole (P) in oleum or sulphuric acid, in which the concentration of (P)# 7% wt., is made by heating in oleum of strength 5-20% a hydrazine salt and an aromatic dicarboxylic acid or derivative thereof, or a dihydrazide of an aromatic dicarboxylic acid with or without an aromatic dicarboxylic acid or derivative thereof. Derivatives include amides or nitriles. (P) has repeating unit where R is arylene. At the end of the reaction the excess free SO 3  may be <12% wt. of the final solution. The acid may be iso- and/or terephthalic acid, the salt may be hydrazine sulphate, which may be formed in situ from hydrazine or hydrazine hydrate, (P) may be isolated by pouring the cooled solution on to water or ice and recovering the precipitate. Or fibres may be made by directly spinning the oleum solution of (P) into an aqueous coagulating bath, e.g., containing 10-20% wt. H 2 SO 4 , Or the solution may be spun into a film.
Patent GB-1340531-A (GB)
Title: Preparation of substituted chromenols
IPC: C07D405/04
Filed: 1971-01-28
Abstract: 1340531 Heterocyclic-substituted chromenols BEECHAM GROUP Ltd 12 Jan 1972 [28 Jan 1971] 3354/71 Heading C2C A chromenol of Formula (I) or a salt thereof wherein R 1  is a C 1-20  hydrocarbon group, R 2  is a 6-membered heterocyclic group, with a nitrogen atom in the 4-position, R 3  a C 1-6  alkyl group, is obtained by reacting coumarin of Formula (II) with an alkali lithium compound R 3 Li and, if any intermediate triol (IV) is formed converting it, with or without isolation, by reaction with an acid to the chromenol (I), and if desired, forming a salt.  Intermediate (II), in which R 2  is 4-pyridyl, Y is OH, and R 1  is n-butyl, n-hexyl, 2-hexyl or 2-heptyl, are obtained by reacting a mixture of ethyl iso-nicotinoylacetate and 5-(R 1 )-3,5-dihydroxy benzene with conc. sulphuric acid and/or phosphoryl chloride.