baber/WOPTO huggingface dataset:
Patent GB-1432140-A (GB)
Title: Production of a refractory artefact
IPC: C04B35/591
Filed: 1972-08-22
Abstract: 1432140 Silicon nitride ADVANCED MATERIALS ENG Ltd 22 June 1973 [22 Aug 1972] 39145/72 Heading C1A [Also in Division B5] A method of making a refractory silicon nitride artefact comprises bonding, without the use of pressure, a body of green material comprising powdered silicon and a binder to itself or to another body of such green material, the bonding being effected by applying to the parts to be bonded a liquid agent which wets the body, the green artefact thus formed being fired in an atmosphere of nitrogen to convert the silicon to silicon nitride. The binder used is preferably polyvinyl butyral and is removed during the firing step. Suitable liquid agents mentioned are aqueous systems such as oil/water emulsions, ethanol/water mixtures, solutions of surfactants such as soap or detergent, or non- aqueous systems such as organic solvents, ethanol being exemplified. In an example a rotary regenerative heat exchanger disc is made by casting sheets of a silicon powder/ polyvinyl butyral composition, corrugating one of the sheets and bonding it to a plane sheet by heat and pressure, spraying the plane side of the composite thus formed with silicone oil/water emulsion, and rolling up the composite to form a green heat exchanger disc. The green disc is then heated slowly to 1450‹ C. in a nitriding atmosphere to remove the binder and convert the silicon to silicon nitride.
Patent GB-969621-A (GB)
Title: Improvements in or relating to connectors
IPC: F16B2/16
Filed: 1960-11-16
Abstract: 969,621. Rod joints. AERPAT A.G. Nov. 16, 1960 [Nov. 16, 1959], No. 39315/60. Heading F2G. [Also in Division E2] A device for connecting rods 39, 40 in end to end axial alignment comprises a body 10 having a longitudinal passage 20 therein first and second detents 23, 23 adjacent the ends of the body and movable inwardly and outwardly thereof, first and second plungers 11, 12 movable in the passage 20 and having means thereon for moving the detents outwardly to locking positions, first and second sleeves 13, 14 slidable over the body 10 and having means thereon for engaging the detents 23 for fixing the sleeves on the body and the sleeves being adapted to be joined to the rods to be connected by the device, spring loaded pins 15, 16 positioned in the outer ends of the plungers and means for selectively moving each of the plungers from a locked position to disengage the corresponding detent from its associated sleeve. As shown, the detents 23 are positioned in openings 24 in the body 10 and are movable from a locked position of the sleeves on the body 10, Fig. 2, to an unlocked position of the sleeves, Fig. 4, as the sleeves are pushed over the ends of the body and the plungers are moved apart by a tool 42 respectively.
Patent GB-1493450-A (GB)
Title: Compressors
IPC: F04B39/14
Filed: 1975-09-25
Abstract: 1493450 Reciprocating gas compressors THOMAS INDUSTRIES Inc 25 Sept 1975 [26 Sept 1974] 39363/75 Heading F1 A reciprocating piston compressor comprises a cylinder 21 clamped between a shoulder 45 on a housing 16 and a closure plate 31 for the cylinder. The cylinder seats against an O-ring 35 located in an annular groove 34 in the plate 31. A discharge valve 38 in the form of an elastomeric tubular member with a narrow exit slot disposed in a discharge chamber 41a is retained in a bore of the plate 31 by a press fitted ring 36. The discharge chamber is defined by a casting 41 secured to the outside of the plate 31 and sealed thereto by an O-ring 44. The substantial metal to metal contact between the plate 31, the casting 41 and the housing 16 improves heat dissipation. Gas enters the cylinder 21 through openings 20 in the housing 16 and thence through a ring of ports 40 uncovered by the piston head 23a. A p.t.f.e. sealing ring 22 retained on the piston head 23a by a washer pressed on to a boss 26 or retained by a screw (33 or 33a) seals against the cylinder 21 while allowing the piston to oscillate during its reciprocations. With the casting 41 removed, an assembly comprising the plate 31, the cylinder 21, and the piston with its rod 14 can be displaced laterally until the rod 14 slides off its crank-pin 9 whereafter the assembly may be removed for repair or replacement.
Patent GB-804240-A (GB)
Title: Improvements in endless track vehicles
IPC: B62D55/084
Filed: 1956-12-28
Abstract: 804,240. Endless track vehicles. CHICAGO PNEUMATIC TOOL CO. Dec. 28. 1956 [April 4, 1956], No. 39442/56. Classes 79(1) and 79(2) An endless track vehicle comprises a pair of endless track units 11 disposed in spaced parallel relation to each other, and a tie bar 12 pivotally connecting the track units to one another at one end for independent pivoting of the track units about the ends of the tie bar and for pivoting of the tie bar independently of the track units. As shown the invention is applied to a vehicle for supporting heavy machinery such as a rock drill. The load supported by the vehicle is carried by an assembly comprising the tie bar 12 and a pair of tubular arms 77 extending forwardly therefrom. Each track unit 11 has a pin and slot connection 82, 81 with one of the arms 77. Each slot 81 is provided in a segment 80 welded to an arm 77 and is concentric with the pivotal axis of the tie bar 12. Each pin 82 is carried by a post 83 welded to an inner frame plate 15 forming part of the supporting frame of each track unit 11. A wear resistant bushing on the pin 82 is connected to an oil passage in the post 83 (Fig. 5, not shown). The foregoing arrangement is such that when the vehicle is on level ground the upper end of each slot 81 will rest on its related pin 82, whereby the arms 77 will also be level. On uneven ground the segments 80 will be lifted angularly as one by the post 83 of that track unit which pivots to the higher degree, and they will follow as one that post which descends to the lesser degree. Each unit has a trunnion 69 pivotally received in a recess 70 in one end of the tie bar 12. A flange 72 on each end of the tie bar 12 is engaged by a collar 71 preventing longitudinal movement of the tie bar 12 relative to each track unit. An endless track 28 is supported by a driving sprocket 31 and an idler wheel 29 and smaller idler wheels 34. A separate air-driven motor 13 is provided to drive each track 28 independently, the drive in each case being through gearing 39, 40, 41 and 43 to a ring gear 37. fast with the sprocket 31. Each motor 13 has a control lever 44 which operates an air supply control valve and is spring biased to a neutral position. The drive gearing is housed in an extension 47 of a motor housing 46 which is carried at the upper end of a torsion bar 65 the lower end of which is fixed to the frame plate 15. The ring gear 37 and sprocket 31 are rotatable on bearings 61 on a stub shaft 54 mounted fast on a depending plate 49 of the motor housing extension 47. A conventional rock drill (not shown) is supported by a saddle 105 carried by a U-bar 98 which is pivoted to the arms 77 and operated by means of a hydraulic jack 102.
Patent GB-345674-A (GB)
IPC: B41J3/38
Filed: 1929-12-24
Abstract: 345,674. Feeding printing- plates from stacks or piles. ADDRESSOGRAPH CO., 901, West Van Buren Street, Chicago, U.S.A. Dec. 24,1929, No. 39455. Convention date, July 10. [Class 117.] Mechanism for removing a disused printing-plate from a frame and for inserting therein a new printing-plate, comprises the following means for successively feeding the frames from a magazine. The frames B<1>, Figs. 2 and 12, are stacked in a magazine 211 and are fed on to a bed 213 by means of dogs 217 on slides 215 running in guides 214, the slides being provided also with dogs 217 for discharging the frames into a shoot 212. A cross-bar 216 connecting the slides is connected to a rocking arm 253, Fig. 2, which is connected to an arm 255 fast on a rock shaft 250 by means of a spring 256, and a headed pin 2531 having lost-motion engagement with the arm 253. Normally, the spring drives the arm 253 and yields when the cross-bar is arrested by a stop 2221, Fig. 12, but if the spring fails to transmit the drive, the headed pin becomes effective. The frame is registered on the bed by means of dogs 218 and a pivoted stop 219 which is moved into registering position by means of a rod 222 on the cross-bar 216. Specification 331,335, [Class 117, Sifting &c.], is referred to.
Patent GB-1037750-A (GB)
Title: Open grid structures
Inventor: FLUCKER RONALD LOUIS
IPC: C22C21/08
Filed: 1964-09-28
Abstract: <PICT:1037750/C6-C7/1> In an open grid structure the primary elements 10 comprise heat-treated and aged aluminium base alloys in extruded form within the percentage composition by weight range 0.4 to 0.8 silicon, 0.7 iron, 0.15 to 0.4 copper, 0.15 manganese, 0.8 to 1.2 magnesium, 0.15 to 0.35 chromium, 0.25 zinc, 0.15 titanium, balance aluminium and impurities normally present therein and the cross lacing elements comprise also heat-treated and aged aluminium base alloys in extruded form within the percentage composition by weight range 0.2 to 0.6 silicon, 0.35 iron, 0.1 copper, 0.1 manganese, 0.45 to 0.9 magnesium, 0.1 chromium, 0.1 zinc, 0.1 titanium, balance aluminium and its normal impurities. The Brinell hardness numbers of the primary elements is at least 95 (500 kg. load -10 mm ball) and of the cross lacing elements is in the range 60-74 (500 kg. ball load-10 mm ball).
Patent GB-351921-A (GB)
Title: Process and device for moistening the air in a room
IPC: F24F6/02
Filed: 1929-12-24
Abstract: 351,921. Bronchitis kettles; vaporizing by heat. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on- Main, Germany. Dec. 24, 1929, No. 39488. Convention date, Dec. 29, 1928. Void [Published under Sect. 91 of the Acts]. [Class 81 (i).] Air in a room is moistened by the addition of superheated water vapour at atmospheric pressure. An electrically - heated wire d wound on a cylinder c closed at both ends i; submerged in a water tank a. The steam produced passes through holes c in the upper part of the cylinder and up a quartz glass tube f containing a long incandescent lamp g preferably of quartz glass, which superheats the steam. The heating may be controlled by a hygrometer so that when room air contains a certain percentage of moisture, the current is cut off. The water 'in the tank a, which may be heatinsulated, is maintained automatically at level b, and the current is cut, off should the level fall.
Patent GB-1198527-A (GB)
Title: Improvements in Electrodeposition of Gold and Gold Alloys
Inventor: NOBEL FRED I
IPC: C25D3/62
Filed: 1967-08-29
Abstract: 1,198,527. Electro-depositing gold and gold alloys. F.I. NOBEL and B.D. OSTROW. Aug.29, 1967, No.39554/67. Heading C7B. Gold or gold-base alloy is electro-deposited from an aqueous solution of at least one soluble gold cyanide salt in which there is dissolved an organo-phosphorus compound which does not contain in the molecule any straight - or branchedchain acyclic or cyclic aliphatic hydrocarbon residue which is linked directly to a phosphorus atom and which contains more than five carbon atoms. The organo-phosphorus may be a non- chelating agent, e.g. benzene phosphoric acid, benzene phosphinic acid, ethyl acid phosphate- C 2 H 5 O-PO(OH) 2  or diethyl phosphite; or may be a chelating agent, e.g. having the formula:- wherein R is an alkylidene radical, R<SP>1</SP> is hydrogen or an alkyl radical and n is an integer from 1 to 3, the radicals containing 5 or less carbon atoms, e.g. amino-tri (methy phosphonic acid), aminotri (ethylidene phosphonic acid), or amino-tri (isopropylidene phosphonic acid) or for instance 1-hydroxyethylidene-1, 1 diphosphonic acid; ethylenediaminetetra (methylphosphonic) acid; hexamethylene-diaminetetra (methylphosphonic) acid, or hexamethyl phosphonic triamide. The organo-phosphorus compound may be a salt of lithium, sodium or potassium or an ammonium or amine salt. The electrolyte may include a soluble citrate. The pH of the bath may be adjusted by addition of alkali metal hydroxide, e.g. potassium hydroxide, or phosphoric acid. To deposit gold base alloys, the plating bath may contain alloying metals such nickel, cobalt, iron, zinc and copper in the form of water soluble salts, e.g. the bath may contain nickel sulphate, nickel tartrate, cobalt sulphate or cobalt gluconate. Gold plate may be deposited on a brass base.
Patent GB-1270325-A (GB)
Title: Improvements in and relating to permanent magnet bearings
Inventor: BAERMANN MAX
IPC: H01F41/02
Filed: 1969-08-08
Abstract: 1,270,325. Magnetic bearing. M. BAERMANN. 8 Aug., 1969 [10 Aug., 1968; 28 Sept., 1968], No. 39713/69. Heading F2A. A magnetic bearing has two permanent magnets 1, 3 which are moulded from powdered magnetic material (e.g. barium ferrite) and a plastic binder. Each magnet is circular and the magnets are assembled so as to face each other with like poles interacting so as to form an air gap 6 one of the magnets being secured to a rotating part 2 supported by the bearing and the other magnet being secured to a support 4. The side of the magnet remote from the air gap is provided with means (e.g. a bush) moulded integrally with the magnet for securing to the rotating part or the support. The magnets may be provided with a cover 29, 30 of plastics material. Radial misalignment of the magnets is prevented by a guiding needle 14 secured to the support of one magnet and which engages with a carbon bearing 16 housed in the other magnet.
Patent GB-900183-A (GB)
Title: Methods for manufacturing sliding clasp fasteners
IPC: A44B19/60
Filed: 1958-12-10
Abstract: 900,183. Sliding-clasp fasteners. OPTIHOLDING A.G. Dec. 10, 1958 [Feb. 10, 1958], No. 39829/58. Class 44. In a method for manufacturing sliding-clasp fasteners two continuous fastener stringer tapes 1, 2, each provided with a continuous fastener element 3 or 4 of thermoplastic material, e.g. polyamide or polyurethane, and having their elements interengaged, are fed from a drum, and at distances along the stringers corresponding to desired fastener lengths, strips 5 of thermoplastic material are welded by pressure and heat to one or both faces of the stringers, the strips extending transversely of the stringers and each being formed and punched so as to produce two laterally-separated stopmembers 7, 8 for each fastener length, the fastener lengths being subsequently separated transversely at the thermoplastic strips. The fastener elements are preferably helically wound threads. Simultaneously with the welding of the strips 5 to the stringers, short lengths of the engaged elements are welded together at 13, the short lengths being later punched out during the punching operation. Subsequently the two stringers for each fastener are joined together at 13 by a transverse seam. In a second embodiment, Fig. 4 (not shown), for manufacturing completely separable sliding-clasp fasteners, wider strips are used and are formed and punched so as to produce, in addition to two stop-members, two plugs, one of which is subsequently connected to a plug case adapted to removably receive the other plug. The strips 5 are preferably transparent and are soft enough for sewing therethrough.
Patent GB-1522909-A (GB)
Title: Double axle drive for rail vehicles
IPC: B61C9/52
Filed: 1976-09-24
Abstract: 1522909 Railway vehicle transmissions THYSSEN INDUSTRIE AG 24 Sept 1976 [27 Oct 1975] 39844/76 Heading B7H [Also in Division H2] In a railway vehicle having two axles 1 mounted in a bogie or frame and driven by an electric motor 5 disposed longitudinally of the vehicle through respective bevel gear units 3 mounted on the ends of the motor, the motor 5 is constructed without a housing, and the motor shaft 6 is concentrically mounted at its ends on pinion shafts 7 of the bevel gear units 3 and is coupled to the pinion shafts 7 by toothed couplings, the mountings of the motor shaft 6 on the pinion shafts 7 and the toothed couplings allowing longitudinal displacements so that changes in length of the motor shaft due to temperature variations do not affect the pinion shafts. The motor shaft 6 is mounted with interposed bearing sleeves 12 on stub portions 11 of the pinion shafts 7, and is axially located by cap springs 6. The stub portions 11 preferably have a slightly spherical form to accommodate bending of the motor shaft 6. Each toothed coupling includes an internally toothed plastics ring 17 which is mounted at one end of the motor shaft 6 on a balancing disc 15 and at the other end on a fan impeller 16. The motor 5 has a laminated stator core 20 clamped between pressure platen 19 which are fixed to the housings of the bevel gear units 3. Hollow shafts 4 driven by the bevel gear units 3 are coupled to the axles 1 by rubber couplings.
Patent GB-1267281-A (GB)
Title: Canister holder
Inventor: RANKIN THOMAS F
IPC: A62B19/00
Filed: 1970-08-19
Abstract: 1,267,281. Respiratory gas absorbers. T. F. RANKIN. 19 Aug., 1970 [20 Aug., 1969], No. 39962/70. Heading AST. A respiratory gas absorber including upper and lower gas conducting housings 26, 28, a resilient sealing ring 46, 48 fixed around the periphery of each of the housings and one or more gas-purifying canisters clamped between the housings, the canister or canisters having end covers 34. 36 each having a recessed central baffle-portion 38, 40 surrounded by an inclined annular shoulder and one of the sealing rings engaging both the inclined shoulder and the recessed central portion to locate the canister or canisters both axially and radially between the housings. A third sealing ring 68 is interposed between the adjacent covers 64. 66. The sealing rings should be electrically conductive and ring 68 may be provided with a tab 72 to accommodate a chain or wire (not shown) for equalising static potentials with the absorber frame (10), Fig. 1 (not shown). In the case of a single absorbing canister, Fig. 2 (not shown) the lower housing and seal are adapted to generate a dual-planed seal with a narrow end (78) of a canister (80).
Patent GB-938961-A (GB)
Title: Sulphur-containing organo-tin compounds and the manufacture thereof
IPC: C08K5/58
Filed: 1959-11-25
Abstract: The invention comprises organotin compounds in which the tin atom is bound directly on the one hand to m hydrocarbon groups (where m is an integer from 1 to 3) and on the other hand, directly to one carboxylic group of each of (4-m) dicarboxylic acid, the other carboxylic groups of the dicarboxylic acid being bound directly to the sulphur atom of an ester of a mercaptosubstituted carboxylic acid.  The compound may have the general formula Rm-Sn(Y)4-m wherein R is an alkyl, cycloalkyl or aryl radical, m is an integer from 1 to 3 and Y represents the group -(OOC-COSR11) or the group -(OOC-R1-COSR11) wherein R1 is an aliphatic, alicyclic or aromatic bivalent hydrocarbon radical and R11 is an aliphatic, alicyclic, aromatic or heterocyclic radical which contains 1 or 2 ester groups. They may be prepared by reacting a dicarboxylic acid (preferably oxalic acid or an acid of formula R1(COOH)2 where R1 is as above defined) or a functional derivative thereof with an ester of a mercapto-substituted carboxylic acid of formula HS-R11 in which R11 is as above, and then reacting the product with an organotin oxide, hydroxide or halide having 1, 2 or 3 alkyl, cycloalkyl or aryl radicals per tin atom, which radicals may be the same or different. The dicarboxylic acid is preferably a saturated C2-C10 acid or an unsaturated C4-C8 acid such as maleic acid.  The ester of the mercapto-substituted carboxylic acid is preferably an alkyl ester of a mercaptosubstituted alkyl monocarboxylic acid (e.g. thioglycollic acid or thiopropionic acid) or an alkyl ester of a mercapto-substituted alkyl dicarboxylic acid (e.g. thiomalic acid). Mono-esters of dicarboxylic acids with mercapto-substituted carboxylic acid esters.  The following intermediates are described: maleic anhydride with di-n-butylthiomalate, n-butyl thiopropionate and with n-octylthioglycollate; succinic anhydride with diethylthiomalate; phthalic anhydride with dimethylthiomalate; hexahydrophthalic anhydride with thiophene-2-carboxylic acid ethyl ester; glutaric anhydride with di-n-butylthiomalate; citraconic anhydride with di-n-butylthiomalate; glutaconic anhydride with n-laurylthioglycollate; itaconic anhydride with n-octylthiopropionate; maleic acid chloride with sodium di-n-butylthiomalate; fumaric acid chloride with sodium n-butylthiopropionate; adipic acid chloride with sodium di-n-butylthiomalate; terephthalic acid chloride with sodium n-butylthiopropionate and isophthalic acid chloride with sodium n-butylthioglycollate.
Patent GB-1268653-A (GB)
Title: PRODUCTION OF TRIMETHYL-p-BENZOQUINONE
IPC: C07C46/06
Filed: 1969-08-12
Abstract: 1,268,653. Trimethylbenzoquinone. BADISCHE ANILIN- & SODA-FABRIK A.G. 12 Aug., 1969 [13 Aug., 1968], No. 40176/69. Heading C2C. Trimethyl-p-benzoquinone is prepared by reacting 2,3,6-trimethylphenol with oxygen in the presence of a cobalt complex of the formula where R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen or an aliphatic radical or R<SP>2</SP> and R<SP>3</SP> and the two adjacent carbon atoms form an aromatic ring and in the presence of an open or cyclic amide having two substituents other than hydrogen on the nitrogen atom as solvent.
Patent GB-830096-A (GB)
Title: Improvements in or relating to torsional vibration transducers
IPC: G01H1/10
Filed: 1957-12-27
Abstract: 830,096. Measuring torsional vibrations. SCHWEIZERISCHE LOKOMOTIV - UND MASCHINENFABRIK. Dec. 27, 1957 [Dec. 29, 1956], No. 40198/57. Class 40 (1). In a torsional vibration pick-up comprising a casing coupled to the shaft to be tested, an inertia member resiliently connected to the casing in the direction of rotation and means for indicating the angular displacement of the member relative to the casing, the inertia member comprises a closed hollow cylinder containing in separate coaxial bearings a further freely rotatable body of revolution whose surface is separated from the adjacent interior walls of the inertia member by viscous liquid. In Fig. 1 the casing 1 is coupled to the shaft under test by the nut 2 and contains the inertia member 3 which can rotate in the ball bearings 4 against the springs 5. Within the member is a further rotor 24 also mounted in ball bearings 25 and enclosing in turn an enlarged hollow portion of the shaft 28. This forms a reservoir for oil which fills the spaces between the shaft and rotor and between the rotor and inertia member, thus damping the natural resonant frequency of the member. These spaces can vary in use only by the amount of clearance of the ball bearings, which is very small, and therefore impose substantially constant damping. The member 3 has four raised segments 8 (Fig. 2) which are normally opposite four similar segments 7 on the inside of the casing. When relative angular displacement occurs, the capacitance between the member and the casing alters and can be measured in a circuit including an amplifier and cathode-ray oscilloscope (Fig. 3, not shown). The bearings 4 and springs 5 are mounted in insulating sleeves 9 and 10 respectively so that an electrical connection to the member 3 can he made via the needle contact 19 and insulated plug 14.