baber/WOPTO huggingface dataset:
Patent GB-225215-A (GB)
Title: Cushion tyre
IPC: B60C7/12
Filed: 1924-11-18
Abstract: 225,215. Goodyear Tire & Rubber Co., (Assignees of Burdette, R. S.). Nov. 22, 1923, [Convention date]. Moulding wheel tyres. Cushion tyres are built up on a base band 1 by mounting thereon an annular core 7 of soluble material, applying strips of rubber 9, 10 at each side of the core to hold it in position, placing over the core a tyre-forming mass 5 of rubber compound, preferably extruded in the shape shown, vulcanizing the parts and removing the core by the application of water jets through holes in the band 1. A strip 8 of cured rubber is wrapped round the core, which is preferably formed of sand and a soluble and heat-resisting binder as described in Specification 217,217. The strips 9, 10 are of rubber with a high percentage of zinc. oxide, and the surface of the band 1 is prepared with a coating of brass and of a rubber cement with a high percentage of zinc oxide. The band is rolled to the form shown with edge flanges 2 and a central depression 3 forming conical seating surfaces for mounting the tyre on the wheel. Specification 220,277 is referred to.
Patent GB-1128770-A (GB)
Title: Automatic lamp changer
IPC: B63B45/00
Filed: 1967-06-15
Abstract: 1,128,770. Lamp changers. WALLACE & TIERNAN Inc. 15 June, 1967 [16 June, 1966], No. 27613/67. Heading F4R. [Also in Division H2] An automatic lamp changer comprises a rotary turret 24 adapted to carry a number of lamps L, a driving mechanism which rotates the turret in response to the failure of the lamp in the operative position so as to bring another lamp into the operative position, and a housing comprising a pair of releasably interconnected sections 30, 32 having opposed plane face plates 26, 28 between which the turret is mounted, one of the sections enclosing the driving mechanism and the other enclosing the control circuit for the driving mechanism. The turret is a one-piece plastic injection moulding comprising a web 68 and a generally cylindrical flange 70 provided with apertures 72 and slots 74 to receive the lamp bases, the turret being rotatable on a shaft 58 supported in an aperture 50 in the face plate 28. Electrical contact with the lamps is made by a series of resilient fingers 76 connected to studs 78 which engage a lamp contact LC in the operative position, and a spring spider 62 having radial fingers 64 which press against flanges 66 on the lamp bases. The spider 62 serves the additional purposes of urging the turret towards the face plate 28, thereby holding it in position, and connecting it to the driving mechanism which is located in the housing section 30 and comprises a ratchet motor RM coupled to the spider drive shaft 122 by reduction gearing. The ratchet motor control circuit (see Division H2) includes a reed switch S1 the coil of which is in series with the operative lamp, so that if this lamp fails the switch opens and causes a silicon controlled rectifier to become conductive and supply current to the motor. When a good lamp reaches the operative position the rectifier ceases to conduct and the turret stops. A cam-operated switch is provided to prevent further rotation of the turret after the final lamp has reached the operative position. The housing sections are pivotally connected by a pin 56 and are locked in their normal positions by means of resilient levers (48, 50, Figs. 6-8, not shown) which are secured to the section 30 and engage under latch shoulders (52, 54) on the plate 28. Disengagement of the levers from the shoulders enables the sections to pivot apart and the turret to be released.
Patent GB-802873-A (GB)
Title: Improvements in or relating to inserts for articles of moulded insulation material
Inventor: PEARSON ERIC JOHN BARNES
IPC: H01R13/41
Filed: 1955-09-28
Abstract: 802,873. Two-part couplings; mounting terminals. GENERAL ELECTRIC CO., Ltd. Nov. 14, 1956 [Sept. 28, 1955], No. 27668/55. Class 38 (1). [Also in Group XXV] An insert 1, such as a plug pin or term for mounting in a hole 2 or recess in an insulating body 3 comprises a flat stamping having an enlarged head 7 and a tongue 4 for insertion in the hole and which is slotted at 8 along its length and has barbs 6 in the region of the slot. The resilience imparted to the tongue by the slot thus causes it to grip the hole when inserted therein, the barbs resisting removal thereof.
Patent GB-803098-A (GB)
Title: Improvements in or relating to audio frequency transistor amplifiers
Inventor: HILBOURNE ROBERT ARTHUR
IPC: H03F3/26
Filed: 1955-09-28
Abstract: 803,098. Transistor amplifier circuits. GENERAL ELECTRIC CO., Ltd. Sept. 26, 1956 [Sept. 28, 1955], No. 27669/55. Class 40(6). An audio frequency amplifier comprises a pair of similar transistors operating as a class B push-pull amplifier, the transistors both being connected either as shown in common emitter configuration or in common collector configuration, and each having a small emitter resistor 14, 15, a bias voltage derived from a source having a low internal resistance being supplied to the base electrodes and an audio frequency signal being applied between the base electrodes from a source having an internal resistance whose value is much higher than that of the emitter resistors 14, 15. By this means the bias is stabilized without substantially reducing the gain at signal frequency. In the circuit shown the base bias is obtained from a potentiometer 13, 12 and the input signal is derived through a transformer 11 from a preamplifier stage 1. Where the common collector configuration is used the output transformer 17 may be connected between the emitter electrodes and the resistance of the winding of the transformer may make the additional resistors 14, 15 unnecessary.
Patent GB-1032897-A (GB)
Title: A teaching machine
IPC: G09B3/04
Filed: 1963-07-12
Abstract: 1,032,897. Educational appliances. A. HAYTER. July 13, 1964 [July 12, 1963], No. 27712/63. Heading G5G. A question and answer apparatus comprises a casing 27, Fig. 4, having a lid 28 provided with a viewing window 30 and answer slot 32 adjacent an answer cover 31, a support platform 34, Fig. 5, supporting a programme scroll 20 and an answer scroll 21 wound on rollers 23, which programme and answer scrolls are advanced by a manually-operable knob having a unidirectional clutch means 42. The programme scroll 20 contains on the left-hand side opposite the cover 31 the pre-printed answers to questions set out on the right-hand side and which may be viewed under the transparent window 30 above the cover 31 so as to compare them with the answers written in the slot 32, when the answers have been advanced below the transparent window 30. In another embodiment (Fig. 2, not shown), the intermediate flanges 24 on the spindles 23 are omitted and the programme and answer scrolls are integral. A programme scroll may be provided with subsidiary leading questions correct answering of which permits a student to omit some of the consecutive questions, whilst mistakes can be corrected by further explanation and practice.
Patent GB-1434445-A (GB)
Title: Physiologically harmless polyisocyanate solutions
IPC: C08G18/75
Filed: 1974-06-24
Abstract: 1434445 Polyisocyanate solutions BAYER AG 24 June 1974 [27 June 1973 26 March 1974] 27852/74 Heading C3R A process for the preparation of a physiologically harmless solution of a polyisocyanate which solution generally contains less than 0À7% wt. of free diisocyanate and generally has an isocyanate content of over 0À5% wt., based on the solids content, comprises reacting a polyhydroxyl compound of the formula where R represents an n-valent aliphatic hydrocarbon group, preferably containing 2-14 carbon atoms, or an n-valent cycloaliphatic hydrocarbon group preferably containing 5-15 carbon atoms, and n = 2 or 3 with excess 1- isocyanato - 3,3,5 - trimethyl - 5 - isocyanatomethyl cyclohexane, (IPDI), generally at 40-160 C., preferably using an NCO/OH ratio of 3 : 1 to 20 : 1, and subsequently removing the excess unreacted IPDI in a 2-stage operation the first stage comprising the removal of the major proportion of the unreacted IPDI by distillation, and the second stage comprising dissolving the distillation residue which generally still contains 1-5% wt. of free IPDI in a lacquer solvent generally in 0À1-20 times its weight of lacquer solvent, and reacting the resulting solution, preferably at 0-120 C., with an alcohol of the formula preferably in a 0À1-10 times molar quantity, based on the free IPDI still present, in which R<SP>1</SP> represents an aliphatic hydrocarbon radical preferably containing 1-18 carbon atoms, a dialkylaminoalkyl radical preferably containing a total of 4-18 carbon atoms, or an aliphatic hydrocarbon radical, preferably containing a total of 4-18 carbon atoms which contains either oxygen bridges and which may also contain a tertiary amino end group. The resulting products can be used in the production of 2-component polyurethane lacquers and as cross-linking agents for air drying alkyd resins. In Examples 1 and 3 IPDI is reacted with trimethylolpropane and the reaction product subjected to a thin layer distillation. The residue is dissolved in xylene/ethylene glycol acetate and reacted with lauryl alcohol. The resulting product is used to cross-link a medium oily alkyd resin modified with dry vegetable fatty acids. In Example 5 IPDI is reacted with a mixture of butane 1,3 diol and trimethylol propane, then subjected to thin layer distillation then dissolved in xylene/ethylene glycol acetate and reacted with either diethylethanolamine, lauryl alcohol or isopropanol. The resulting products are added to an air-drying alkyd resin lacquer comprising an alkyd resin derived from drying vegetable fatty acids and phthalic acid anhydride, mineral spirits, xylene, titanium dioxide pigment, zinc octoate, cobalt octoate, lead octoate, a silicone levelling agent, an anti-skinning agent, ethylene glycol acetate, and a mixture of alkyl aromatic solvents.
Patent GB-1438427-A (GB)
Title: Process and an agent for treating waste water
IPC: C02F1/52
Filed: 1974-06-24
Abstract: 1438427 Treating waste water DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 24 June 1974 [9 July 1973] 27853/74 Heading: C1C A process for treating waste water containing organic, water-insoluble substances in emulsified form to form an aqueous phase and a phase which contains the organic impurities and which is of a substantially pasty to solid consistency comprises adding to the waste water at least one water-soluble salt of a C 1-8  fatty acid with a polyvalent metal and/or halide or sulphate of sodium, magnesium, aluminium or iron in solid or dissolved form as an emulsionbreaking agent, in combination with an adsorption agent suitable for transforming the fraction which is not soluble in water into a state suitable for filtration the emulsion-breaking agent and the adsorption agent being used together with an organic, water-soluble, macromolecular flocculant and after the emulsion has been broken, the solid fraction which can be filtered is separated from the liquid phase. In the examples an emulsion of a drilling oil in water is treated with a mixture of AlCl 3 , CaO hydrophobized precipitated silica, Milori blue and kieselguhr and a flocculant which may be a polyamine polyethylene, polyacrylamide or polyacrylate.
Patent GB-265893-A (GB)
Title: Improvements in and relating to multi-cylinder two-stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1926-11-06
Abstract: 265,893. Brown, E. Nov. 6, 1926. Addition to 251,938. Cylinders, arrangement of ports in and pipes for.-In a multicylinder two-stroke-cycle engine, having an inlet ,and exhaust pipe line on each side of a row of cylinders as described in the parent Specification the exhaust ports in each cylinder are arranged in two groups 10, 11, each group communicating with a separate pipe-line 16, 17. Guide blades 18, 19 may be provided. The scavenging ports 9, which are below the exhaust ports, may be uniformly distributed round the cylinder or divided into two groups 25. 26, and the inlet pipes 21. 22 may be separated by partitions 23. When two multicylinder engines are placed side by side common inlet and exhaust pipes may replace the adjacent ones of each engine.
Patent GB-1470554-A (GB)
Title: Rotor blade retention system
IPC: B64C27/35
Filed: 1974-06-25
Abstract: 1470554 Helicopter rotors LORD CORP 25 June 1974 [18 July 1973] 28020/74 Heading B7W [Also in Division F2] A rotor blade retention system comprises two elastomeric bearings 18, 32 connected in series between the blade structure and the rotor hub 11, each bearing being constituted by alternating layers of rigid and elastomeric material, and being disposed relative to the longitudinal axis of the blade with the layers orientated to be loaded at least partially in compression normal thereto to restrain the blade against centrifugal forces. In the embodiment of Fig. 1, one bearing 18 has part-spherical surfaces 19, 26, permitting lead-lag and flapping movements of the blade, and the other 32 has frusto-conical surfaces. The bearings are precompressed by means of a part-spherical nut 35 threaded on to the end of the blade root 13a and having an elastomeric pad 36 engaging in the absence of rotation and any centrifugal forces, a part-spherical surface 37 of the hub 11. Various alternative configurations of bearings and associated hub housing are disclosed. A ball-and-socket centring bearing (112), Fig. 5 (not shown), may be provided in the hub housing (15) to support the blade against blade shear loads.
Patent GB-965087-A (GB)
Title: Process for the manufacture of ª‰-lactams
IPC: C07C7/11
Filed: 1960-08-12
Abstract: b -Lactams of formula: <FORM:0965087/C1/1> where R is hydrocarbyl which may be substituted, and R1, R2 and R3 are each hydrogen or hydrocarbyl which may be substituted and where any two of R, R1, R2 and R3 may be joined to complete a C5-8 cycloaliphatic ring, are prepared by hydrolysing a b -lactam-N-sulphochloride of formula: <FORM:0965087/C1/2> in the presence of water and with the use of an acid binding agent at a pH of 1 to 12 and at 0-60 DEG C.  R is preferably C1- 10 alkyl, alkyl substituted by an esterified carboxylic group, phenyl, phenyl substituted by C1- 3 alkyl or alkoxy, halogen and/or nitro, or a radical of formula: <FORM:0965087/C1/3> while R1, R2 and R3 are preferably hydrogen or C1- 10 alkyl with the proviso that when R is aromatic R1, R2 and R3 are hydrogen. Specified acid binding agents are alkali metal and alkaline earth metal hydroxides, carbonates and bicarbonates, and tertiary amines. A buffer is preferably present. An aqueous alcoholic medium may be used or an inert organic solvent such as dimethylformamide, N-methylacetamide, tetrahydrofuran or 4,4-dimethylazetidnone-(2) may be added as a dissolving intermediary. Examples describe the preparation of: 4,4-dimethylazetidinone-2; 4-methyl-4-n-propylazetidinone-2; 4-phenylazetidinone-2; and 4-methyl-4-carbomethoxymethylazetidinone-2.  4- Methyl -4- carbomethoxymethylazetidinone-(2)-N-sulphochloride is prepared from methyl 2-methylpropene-(2)-1-carboxylate and N-carbonylsulphamidic acid chloride.ALSO:Mixtures of ethylene and acetylene may be separated by using their differing solubilities in b -lactams of formula <FORM:0965087/B1-B2/1> where R is hydrocarbyl which may be substituted and R1, R2 and R3 are each hydrogen or hydrocarbyl which may be substituted and where any two of R, R1, R2 and R3 may be joined to form a C5-8 cycloaliphatic ring. The preferred compounds are those containing C1-4 alkyl radicals.  Solubility data are given for 2 compounds.
Patent GB-752430-A (GB)
Title: Improvements relating to suction operated electric switches
IPC: H01H35/34
Filed: 1954-09-29
Abstract: 752,430. Actuation of switches. GENERAL MOTORS CORPORATION. Sept. 29. 1954 [Oct. 8, 1953], No. 28082/54. Class 38(5) In a pressure controlled switch, suitable for the starter motor circuits of automobiles and responsive to engine suction, reduction in pressure due to suction through a tube 38 on a diaphragm 32 causes a bridging member 28 to move against the bias of a spring 30 and to disengage contacts 24 and 26 thus opening a circuit; when the suction ceases a valve (40 and 42) closes and the switch is prevented from closing until sufficient air has entered through an orifice 62 to restore the pressure thus providing a time delay. A plunger 48 attached to the bridging member passes through and is movable in the plate 22 and has grooves 50 and 52 which may each be engaged by a spring loaded ball 54, thus providing catches which oppose the movement of the bridging member and form a snap action device.
Patent GB-1058732-A (GB)
Title: Card supports for use in card index trays
Inventor: FIDGEON JOHN EDWARD
IPC: B42F17/02
Filed: 1964-07-08
Abstract: 1,058,732. Filing papers. JENKINS FIDGEON Ltd. July 7, 1965 [July 8. 1964], No. 28097j64. Heading B6E. In a card index, the cards are held upright in a tray 10 by a support plate 12 of moulded synthetic resin material having integral tonguepieces 13 which engage the sides of the tray frictionally. The plate has thickened rim portions connected by ribs 14, and apertures are provided in the thinner portions.
Patent GB-955237-A (GB)
Title: Improvements in or relating to screening or shearing foils for dry-shaving appliances
IPC: C25D1/08
Filed: 1962-07-23
Abstract: 955,237. Dry shavers. BRAUN A.G. July 23, 1962 [Aug. 16, 1961], No. 28176/62. Heading B4B. In a screening or shearing foil 12 for a dry shaver which is produced by a galvanic method and has a large number of holes 14, the edge of each hole has a contour comprising a plurality of repetitions per millimetre of edge length and takes the form of an arcuate or undulating line the arches of which are directed towards the interior of the hole. In producing the foil, a screening grid and hole pattern applied to the matrix 16, Fig. 3, has a contour in the form of saw-tooth lines with a periodicity equal to that of the contour of the hole in the foil. The contour of the holes is determined not only by the pattern but also by the lateral growth, as shown by lines 4, 5, 6, which takes place during the galvanic deposition. A brass plate employed as the matrix is first coated with a thin layer of nickel and a solution of polyvinyl alcohol sensitised by the addition of potassium bichromate is then applied and, after the printing and developing, is hardned with a solution of chromic acid and baked at a temperature between 100 C. and 200 C. The foil may act as a shearing comb or as a reciprocable inner shearing member.
Patent GB-1060337-A (GB)
Title: Production of multi-component fibres
IPC: D01D5/32
Filed: 1965-07-02
Abstract: 1,060,337. Conjugate filaments. JAPAN EXLAN CO. Ltd. July 2, 1965 [July 2. 1964], No. 28244/65. Heading B5B. In a method for spinning conjugate filaments by extruding at least two fibre-forming ma terials through a common orifice, the materials are merged in a laminar flow having a zig-zag or wavy interfacial junction in cross-section prior to extrusion so as to provide a zig-zag or wavy interfacial junction in the formed fibre. In apparatus for producing bi-component filaments, a spinneret plate (2), provided with rows of orifices (1), is mounted on guide plate (4) having slits (3) in the same number of rows as orifices (1) (Fig. 3) (not shown). The inlet section of cylindrical sleeve (5) is provided with a baffle (not shown) which divides the inlet section into two chambers (9), (10) to which different spinning solutions or melts are supplied (Fig. 1) (not shown). The outlet section of sleeve (5) is provided with narrow channels (12), (12<SP>1</SP>) divided by partitions (11), communicating with chambers (9), (10) such that the channels are supplied alternately with the different solutions or melts, which then merge in common slits (3). A plurality of grooves (15) (Figs. 2 and 4) (not shown) communicating with channels (12) and slits (3) and grooves (15<SP>1</SP>), communicating with channels (12<SP>1</SP>) and slits (3), are alternately arranged so that the solutions discharged therefrom will alternately merge and flow into common slit (3) in laminar flow with a zig-zag or wavy interfacial junction.
Patent GB-282018-A (GB)
Title: Improvements in or relating to clutches for self-propelled vehicles
IPC: F16D25/02
Filed: 1927-10-25
Abstract: 282,018. Renault, L. Dec. 10, 1926, [Convention date]. Clutches, friction and claw.-In clutches for motor vehicles, a lightly-engaged mechanical clutch is combined with an hydraulic clutch. A weak spring 10 acts through a member 11 and ball thrust bearing 12 on the driven member 8 of a cone clutch, the driving-member 7 of which is carried by a cylinder 6, loose on the driving- shaft 1. Planet pinions 4, forming gear pumps, are carried by the flywheel 2 and mesh with a sun-wheel 5 on the member 6. To start the vehicle, the clutch pedal is depressed to displace the driven shaft 9, a gear brought into mesh, and the clutch 7, 8 re-engaged. The cylinder 6 is thus at rest, and the gear pumps 4 circulate oil freely from a rotating casing 15 through discharge passages 16 - - 21. On depressing the accelerator pedal, a valve 13 connected thereto throttles the passages 20 and drive commences, the passages 20 finally being entirely closed. To enable the friction clutch to transmit full torque, the member 11 is made oil-tight in the cylinder 6, as by a leather ring 22, so that the oil-pressure in the space A supplements the spring 10. The cone clutch may be replaced by a plate, segment, or claw clutch, in which latter case the member 11 need not be oil-tight. The gear pumps may be replaced by turbine or axially or radially arranged piston pumps.
Patent GB-511332-A (GB)
Title: Improvements in or relating to vehicles
IPC: B62D21/10
Filed: 1938-09-30
Abstract: 511,332. Vehicle bodies and underframes; mounting batteries. BUDD MANUFACTURING CO., E. G. Sept. 30, 1938, No. 28435. Convention date, Oct. 6, 1937. [Classes 108 (i) and 108 (ii)] [Also in Group XXXII A combined body underframe and chassis frame for vehicles includes a main side sill consisting of a flat vertical member 10 contoured to conform with the lower side margins of the vehicle and hollow section reinforcements secured to the inner and outer faces of 'the web member in different longitudinal regions thereof to present a substantially continuous box-section sill structure extending from end to end of the vehicle. The hollow reinforcements 14, 12 are secured to the inside of the web member and extend from its ends to the threshold region. This region has a reinforcement 40 on its outside overlapping the ends of the inside reinforcements. These built-up side members are connected by body flooring and cross-members of angular and hodlow section. One of these, 23, is large enough to serve as a container for electric storage batteries. A deep reinforcement may be built up of parts 48, 49. Specification 418,257 is referred to.