baber/WOPTO huggingface dataset:
Patent GB-931082-A (GB)
Title: Improvements in microphones
IPC: H04R5/027
Filed: 1960-05-18
Abstract: 931,082. Microphones. AKUSTISCHE U. KINO-GERATE G.m.b.H. May 18, 1960 [June 16, 1959], No. 17507/60. Class 40 (4). A stereophonic microphone assembly comprises two microphone capsules 6 of the directional type mounted for rotational movement relative to one another about a common axis. The assembly also comprises two base plates 1 coupled together, each carrying one of the microphone capsules 6. At least one of the base plates 1 has a projection 5 for connection to a stand 4. One base plate 1 may be provided with a stud 9 which snaps into a socket 10 in the other base plate 1. Each base plate 1 consists of an outer ring la joined by spokes 1c to a central disc 1b. Each capsule 6 is shrouded by a shell 2 of perforated metal sheet or wire mesh and is secured to its shell 2 by a bracket 7. Each bracket 7 is secured to its adjacent base plate 1 by a nut and bolt 8, the bolt 8 serving also for locating the stud 9, or socket 10. Pins 11 in the spokes 1c or in the ring 1a couple the two base plates 1 and prevent relative rotation between them. Each shell 2 is rotatably mounted in an annular groove 1d in the appropriate base plate 1 and relative rotation between each shell 2 and its base plate 1 is limited by a stop pin (not shown) fixed to the shell 2 and arranged for movement in a deeper portion of the annular groove 1d. The base plate openings are screened by perforated metal sheet 12. In alternative arrangements, not shown, the base plates are mechanically coupled together by a bayonet joint, or by locking bars on the outside of the base plates, or by a screwed connection, or each of the pins 11 is replaced by a snap coupling.
Patent GB-278113-A (GB)
Title: Improvements in or applicable to root cutting and cleaning machines
IPC: B26D3/18
Filed: 1926-07-15
Abstract: 278,113. Harrison, T. D. July 15, 1926. Cleaning vegetables. - In a combined root cutting and cleaning machine of the type wherein the roots are cleaned by the action of rotating barrels 11, 12 having external cleaning bars and enclosed in a stationary cage 6, the cleaner bars 16 are arranged to extend helically about the axes of the barrels. The passage of the roots from the feeding hopper 5 to the rotary cutting mechanism 8 is thus retarded and the roots more efficiently cleaned. The bosses carrying the cleaning bars may be angularly adjustable at one end of the barrel shafts relatively to the bosses at the other end to vary the pitch of the bars. The cleaning barrels or the cage together with the cleaning barrels may be inclined to ensure all the roots reaching the cutter after cleaning.
Patent GB-1429583-A (GB)
Title: Oil recovery using polymer preslug
IPC: E21B43/22
Filed: 1974-04-23
Abstract: 1429583 Recovering oil MARATHON OIL CO 23 April 1974 [26 April 1973] 17736/ 74 Reading E1F A process for recovering oil from a subterranean reservoir containing water having at least 500 ppm of divalent cations comprises injecting into the reservoir 1-50% pore volume of an aqueous solution containing 50-2000 ppm of a biopolymer followed by a micellar dispersion displacement slug. The biopolymer is preferably a polysaccharide.
Patent GB-180921-A (GB)
Title: Improvements relating to the lubrication of coil clutches
IPC: F16D13/08
Filed: 1921-06-30
Abstract: 180,921. Coil Clutch Co., Ltd., and Douglas, G. G. June 30, 1921. Channels and reservoirs in clutches.-To lubricate a coil friction-clutch, a sheet-metal strip 3 is secured around the coil C to form an annular chamber which is fed with grease from a cup 5, from which chamber the grease works between the convolutions of the coil and between the coil and the driving member A. The strip 3 is located adjacent the driven member B, and mav be flanged at one side to rest against the periphery of the second or other convolution, the ends being secured to the coil or to the driving-plate.
Patent GB-1022471-A (GB)
Title: Improvements in methods and devices for separating tobacco and like material
Inventor: HARTE HEINZ
IPC: A24B5/10
Filed: 1962-05-09
Abstract: 1,022,471. Pneumatic separation. K. KORBER. May 3, 1963 [May 9, 1962], No. 17823/62. Heading B2H. Tobacco leaf and heavier particles to be separated, and represented by V, Fig. 4, are introduced through an intake 4, Fig. 3, of a separator and projected in the direction of the arrow 15 into a separator chamber 10, one fraction Sl of heavier particles falling towards a first extractor 5. The fraction V1 carried upwardly is conveyed towards two air float separator chambers 11 and 12 and crosses a stream of heavier particles M1, travelling in the direction of the arrows 18, 19, and consisting of heavy particles falling back from the chambers 11 and 12, which returns to the stream V1 and causes some of the heavier particles to fall therethrough in a stream M2. The streams M1 and M2 fall towards a second extractor 7, while the streams B1 and B2 of pure leaf material pass upwardly to take-off ducts 66 and 67. The streams Ml and M2 are passed by the extractor 7 to a further chamber 14 in which a further fraction B3 of leaf material is extracted whilst the heavy particles S2 fall downwardly and are combined with the fraction Sl to form a combined flow S which may be introduced into a second separator group intake 4. If V represents 100% of the starting material, then S represents about 55À5 % and B 44À5%.
Patent GB-1511353-A (GB)
Title: Application of protective coatings to metal surfaces
IPC: C23D5/00
Filed: 1976-04-21
Abstract: 1511353 Protective coatings; vapour deposition CENTRAL ELECTRICITY GENERATING BOARD 21 April 1976 [29 April 1975] 17860/75 Headings C1A and C1M A boron oxide-silicon oxide protective coating on a metal surface, the coating having a composition in the range 20 wt. per cent silicon oxide, 80 wt. per cent boron oxide to 85 wt. per cent silicon oxide 15 wt. per cent boron oxide, is used at an elevated temperature close to the melting point of the coating, but not greater than 1500‹C. The coating may be formed by passing SiH 4 . B 2 H 6  and O 2  in an inert carrier gas over the metal surface, the surface being maintained at a temperature of at least 300‹C and the gas having a temperature at least 50‹C below that of the surface. The coating also shows protection against fused salts e.g. NaCl-NaSO 4  probably due to formation of sodium borosilicate.
Patent GB-1153322-A (GB)
Title: Improvements in or relating to Tunnelling Shields
Inventor: LEE JOHN JAMES
IPC: E21D9/087
Filed: 1966-04-23
Abstract: 1,153,322. Tunnelling machines. A. WADDINGTON & SON, Ltd. 14 July, 1967 [23 April, 1966], No. 17883/66. Heading E1F. A tunnelling shield comprises a rotary digging head 11 including a frusto-conical drum 12 partly closed at its front by a plate 13 having two radial slots 30 closable by sliding flaps (not shown), the slots having aligned radial cutter bars 31 formed as shafts carrying detachable cutter blades 33, the rotational axes of which extend transversely to the main rotary axis of the head and the cutters 31 are mounted so as to be withdrawable rearwardly by suitable means (not shown). The centre of the drum face has a fixed radial cutting blade 38, radial digging blades 41 and, at the periphery of the drum, circumferentially-spaced cutting blades 45 which are adjustably mounted to enlarge the effective cutting radius of the head.
Patent GB-1420726-A (GB)
Title: Light pencils
IPC: G06K7/10
Filed: 1974-04-25
Abstract: 1420726 Light pens NIXDORF COMPUTER AG 25 April 1974 [25 April 1973] 18177/74 Heading G1A A light pen of the type which emits an illuminating beam and receives the reflected beam from an information carrier is provided with an illuminable surface at an area nearer the tip than the gripping zone to provide a visual signalling means. As shown, Fig. 2, a transparent or translucent ring 26 is arranged between the body 1 and a detachable front cap 4 of a light pen. Two lamps 23, 24 are arranged to illuminate the ring 26 and thus produce a visual signal to the. operator when energized by the processing circuitry to which the pen is connected. A pair of optical fibres 25 couple the pen tip and an internal light source and detector (not shown). The front cap 4 is shaped to shield the scanning area from the signalling light. In modifications the ring is provided with an annular recess into which the lamps extend, Fig. 3 (not shown) and the ring embeds bundles of optical fibres which couple a lamp to a plurality of spaced points on the outer surface, Figs. 4 and 5, (not shown). The use of optical fibres allows the lamp to be mounted towards the rear end of the pencil if necessary.  The light pen system itself may utilize a source and detector mounted in the body of the pen or at a processing unit to which the pen is connected by light conductors. The signalling lamp may also be mounted remote from the pen and be connected by a light conductor.
Patent GB-757587-A (GB)
Title: Improvements in or relating to adhesive tape, and apparatus for and methods of forming the same
IPC: B65H35/00
Filed: 1951-08-01
Abstract: 757,587. Feeding webs. GOETZ, R. J. Aug. 1. 1952 [Aug. 1, 1951], No. 18259/51. Class 100 (1). [Also in Groups VIII and XVII] Apparatus for forming composite adhesive tape comprises two reels of adhesive strip which strips are each adhesive on one side only, the reels being so mounted on supporting means that the adhesive sides of the strips when unwound therefrom face each other and can be brought together to stick to each other with the edges of the strips out of register whereby composite tape is formed having one edge portion adhesive on one side, the other edge portion adhesive on the other side and the central portion consisting of the two overlapped tapes adhesive on neither side. As shown, adhesive strips 6, 13 are wound on to the drums 5, 12 mounted on a body 1, each reel being disposed in a substantially vertical plane, the central plane of reel 14 being slightly displaced from that of reel 7 so that the strips unwound overlap the edges of the strips not being in register, the reels also being mounted so that the strips when unwound have their adhesive sides face to face which are then threaded under a roller 18 pivotally supported in a bracket 17 to form the composite tape 19 the central portion of which consists of the overlap between the two strips and is adhesive on neither side whereas one edge portion is adhesive on the upper side and the other edge portion on the underside, which may be cut to any desired length by a cutter blade 16. More than one roller 18 can be provided, the rollers 18 being close together and parallel to each other and the strips being threaded between the rollers.
Patent GB-640989-A (GB)
Title: Improvements in textile treatment compositions
IPC: D06M15/15
Filed: 1947-07-10
Abstract: Textile yarns of regenerated cellulose filaments prepared by substantially complete saponification of cellulose ester filaments which have been stretched to a substantial degree while in a softened condition are treated with a composition comprising casein or soya-bean protein, an alkylolamine and oleic acid.  The alkylolamine is preferably triethanolamine, but diethanolamine, tripropanolamine or a mixture of two or more alkylolamines may be utilized, the proportion of alkylolamine preferably amounting to 15-20 per cent by weight of the casein or soya-bean protein.  The amount of oleic acid employed is preferably equivalent chemically to part only of the alkylolamine and when triethanolamine is used p  the proportion of oleic acid should not usually exceed 50 per cent by weight of the triethanolamine, satisfactory results being obtained with 25 per cent.  Defoaming agents and preservatives (see Group VI) may be incorporated.  Specifications 402,104, 402,105, 402,141, 402,143, 402,144, 438,584, 438,586, 438,587 and 438,656 are referred to.ALSO:Textile yarns of regenerated cellulose filaments prepared by substantially complete saponification of cellulose ester filaments which have been stretched to a substantial degree while in a softened condition are sized with a composition comprising casein or soya bean protein, an alkylolamine and oleic acid.  The alkylolamine is preferably triethanolamine, but diethanolamine, tripropanolamine or a mixture of two or more alkylolamines may be utilized, the proportion of alkylolamine preferably amounting to 15-20 per cent by weight of the casein or soya bean protein.  The amount of oleic acid employed is preferably equivalent chemically to part only of the alkylolamine and when triethanolamine is used the proportion of oleic acid should not usually exceed 50 per cent by weight of the triethanolamine, satisfactory results being obtained with 25 per cent.  Defoaming agents and preservatives (see Group VI) may be incorporated. Specifications 402,104, 402,105, 402,141, 402,143, 402,144, 438,584, 438,586, 438,587 and 438,656, [all in Group IV], are referred to.ALSO:Sizing compositions comprising casein or soya-bean protein, an alkylolamine and oleic acid, (see Group V), contain salicylic acid anilide or the sodium salt of orthophenylphenol as preservative.
Patent GB-462512-A (GB)
Title: Method of preparing bast fibres for spinning
IPC: D01C1/02
Filed: 1936-07-02
Abstract: Bast fibres are prepared for spinning by subjecting the stalks first to a mechanical decortication and subsequently to a chemical treatment.  The stalks are decorticated by alternately kneading them between fluted or corrugated press rolls having rounded flutes and squeezing them between flattening rollers so that a longitudinal displacement of the shive on the fibres is effected, the decorticated fibres being then steeped in a boiling soap solution or other alkali liquor to which a volatile fat solvent, e.g. petroleum, benzine, alcohol or the like has been added.  The fibres are then subjected to a short after-treatment under vacuum and at a low temperature in a bath containing the above-mentioned volatile fat solvents in conjunction with dehydrating agents, e.g. glycerine or weak lye.  A bleaching agent may be added to this last bath.  Specifications 10465/05, [Class 120], 146,139, [Class 120 (i)], 367,116, and 383,627, [both in Group IX], are referred to.
Patent GB-839095-A (GB)
Title: Improvements in or relating to electrical plug and socket connectors
IPC: H01R13/15
Filed: 1958-06-09
Abstract: An electrical socket is made from a copper alloy consisting of about 60% Cu, 0.5 to 1% Sn; 0.4 to 1% Pb; 0.1% or less Fe and the remainder Zn.  In another embodiment the copper alloy consists of a minimum of 96.5% Cu; 0.85 to 1.35% Ni; 0.15 to 0.35% P; 0.35 to 0.65% Te, a maximum of 0.2% Fe, a maximum of 0.1% Pb and a maximum of 1% Zn.  A spring is made of an alloy containing .24-2.7% Co, 0.38-0.5% Be, the remainder Cu.  Specification 648,675 is referred to.
Patent GB-220001-A (GB)
Title: Improvements in devices for sharpening annular cutters of mowing or harvesting machines
IPC: B24B3/46
Filed: 1924-08-01
Abstract: 220,001. Bleret, L. J. Aug. 3, 1923, [Convention date]. No Patent granted (Sealing fee nct paid). Machine cutters, grinding in situ.-The rotary cutter 10 of a mowing or harvesting machine is sharpened by two whetstones 26, 27 pivoted on a shaft 23 carried by a part 20 of a bar 1 connecting the handle of the machine with the axle. The whetstones are pressed on the knife by springs 28, 29 which may be moved about their pivots 30 to allow the stones to be lifted from the cutter. One of the stones is of fine grain and is substantially continuously in action, and the other is of hard grain and is used occasionally. One stone only may be employed. Specification 216,829, [Class 6 (iii), Harvesting- appliances], is referred to.
Patent GB-762418-A (GB)
Title: Improved process and apparatus for the improvement of surfaces of metals, in particular iron and steel
IPC: C23C10/06
Filed: 1954-06-23
Abstract: 762,418. Coating with metals. NOWAK, R., and HASSE, E. June 23, 1954 [July 3, 1953], No. 18466/54. Class 82(2) In a process for the coating of metallic surfaces by diffusion, the workpieces to be treated are subjected to the action of such sub-halides of the diffusion element which react with the basic metal in the form of a heterogeneous chemical replacement reaction, the gases resulting from the diffusion treatment being continuously regenerated in a circulation system, by the diffusion element or a substance containing the diffusion element, to the subhalides of the diffusion element. Catalysts, e.g. FeCl 3 , FeCl 2 , SnCl 2 , SnCl 4 , AlCl 3 , AlBr 3 , BF 3 , BCl 3 , CuCl 2 , MgCl 2 , may be added to the reaction gases. Prior to coating, the metallic surface is chemically activated by oxidation and subsequent reduction. As shown, workpieces to be coated are heated to reaction temperature in chamber 1, oxidized in chamber 2, reduced in chamber 3, contacted with reaction gases in chamber 4 and cooled in chamber 5. Rotary blower 10 forces the reaction gases through the circulation system from the chamber 4, through pipe line 8, regeneration chamber 11, pipe line 9 and finally back into the chamber 4. In one example is described the siliconizing of steel plates wherein the process is started by introducing SiCl 4  + AlCl 3  into chamber 4, the SiCl 4  reacting with the plates to diffuse Si and release FeCl 2  which is regenerated by Si or FeSi in chamber 11 to the subchloride of silicon SiCl 2 , this reacting with the plates to diffuse Si and release FeCl 2  which is regenerated as before. The other examples describe (a) the siliconizing and aluminizing of cast-iron or steel bars (b) the titanium-coating of Mo wire and (c) the coating of iron and steel objects with Cu-Al.
Patent GB-261451-A (GB)
Title: Improvements in or relating to clothing adapted to protect the wearer against the action of corrosive or poisonous gases
IPC: A62B17/00
Filed: 1925-07-21
Abstract: 261,451. Boothby, F. L. M. July 21 1925. Wearing-apparel for protection in poisonous atmospheres.-A garment to protect the body from poisonous or corrosive gases, such as mustard gas, is formed of, or lined, interlined or covered by, goldbeater's skin. The overalls 10 shown, are connected to a gasmask 11 by means of a ring on the mask and a split ring 25 with clamping device 27. The front opening 14 is closed by ordinary fastenings and has under and overlying strips of goldbeater's skin to render it gas tight. A bellows 17 supported by a waistbelt and shoulder straps communicates with the interior of the suit by a tube 21 and with a gas absorbing canister 18 by a tube 20, so that the movements of the wearer force pure air at slight pressure into the suit. A second canister 18 supplies pure, air to the mask 11. Air outlets from the suit may be constituted by non-return valves 22. The suit may be in two or more pieces connected by clamping devices and may include a hood which forms a junction with a gas mask. The bellows may be positively operated or may be replaced by a pump or a reservoir of compressed air.
Patent GB-633959-A (GB)
Title: Improvements in or relating to illuminating units embodying iron-cored inductance coils or transformers
IPC: F21V23/02
Filed: 1947-07-14
Abstract: 633,959. Transformers and inductances. PHILIPS LAMPS, Ltd. July 14, 1947, No. 18656. Convention date, July 17, 1946. [Class 38 (ii)] An illuminating unit comprises an inductance or transformer having a core 4 with one limb 5 bearing a winding 6 and situated in the widest part of a casing 8 having a tapering crosssection, and one unwound limb 7 in the narrowest part of the casing, there being means for mounting one or more gaseous-discharge tubes 1 outside the casing and adjacent the narrowest part of its wall. The casing and apparatus are mounted on a plate 3 to which tube 1 is attached by holders 2. The plate 3 and casing 8 may be replaced by a casing of similar cross-section but extending the length of tube 1, Fig. 3 (not shown). The casing may be non-magnetic, e.g. of aluminium or artificial resin.
Patent GB-1132014-A (GB)
Title: Avoidance of stress corrosion cracking in heat exchangers
Inventor: ROBINSON JOHN DONALD
IPC: F28F21/08
Filed: 1965-05-04
Abstract: 1,132,014. Cooling systems. IMPERIAL CHEMICAL INDUSTRIES Ltd. 22 April, 1966 [4 May, 1965], No. 18730/65. Heading F4U. [Also in Division C7] To prevent stress corrosion cracking of a stainless steel heat-exchanger, the coolant, e.g. water, is circulated at such a pressure that bubbles are prevented from forming. The coolant may contain a corrosion inhibitor, e.g. trisodium phosphate, and dissolved gas and impurities are removed. Operation of the exchanger may be prevented, until the coolant is at the desired pressure. The heat-exchanger may be used to cool a reaction vessel and the coolant may be circulated by pumping or convection.
Patent GB-242692-A (GB)
Title: Improvements in a non-slip horse shoe
IPC: A01L7/06
Filed: 1925-05-07
Abstract: 242,692. Ross, J. A. May 7, 1925. Renewable calks.- A rubber pad 5 is provided with countersunk holes 7, bevelled or chamfered edges 5<a> and is formed higher at the rear end and is secured to the shoe 4 by means of screws 6 or by bolts or rivets:
Patent GB-1425943-A (GB)
Title: Vehicle jack
IPC: G01M1/28
Filed: 1972-04-22
Abstract: 1425943 Jacks DUNLOP Ltd 17 April 1973 [22 April 1972] 18805/72 Heading B8J [Also in Division G1] A jack comprises a load support 2 carried on parallel links 20, 21 pivoted on member 12 attached to a base member 8. Toggles 28 pivoted together at 29 and at their ends respectively to the base 8 and the link 21 are used to raise the load support 2 on being straightened by rotation of an associated screw-threaded rod 31 through a spanner (not shown) applied to hexagonal head 32. When the load support 2 has been sufficiently raised a stand 4 may be slid underneath by pulling on a handle 33 attached to it. The load support 2 may then be lowered on to the stand 4, lost motion slots 24, 26 in block 26 of the support 2 engaged by spigots 22, 23 on the links 20, 21 allowing the whole weight of the support 2 and any load carried by it to be taken by the stand 4. The stand 4 may comprise a force sensor having electrical leads 36 passing through the handle 33 to a recording meter (not shown) and used in balancing a wheel (not shown), the suspension of the wheel being raised by the load support 2 2 and the weight transferred to the stand 4 for balancing purposes.