baber/WOPTO huggingface dataset:
Patent GB-858004-A (GB)
Title: Improvements in and relating to discharge lamp circuits
Inventor: BEESON ERIC JOHN GEORGE
IPC: H05B41/19
Filed: 1957-11-22
Abstract: 858,004. Discharge lamp arrangements. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 12, 1958 [Nov. 22, 1957], No. 36549/57. Class 38 (4). In a system for starting D.C. discharge lamps having an auxiliary electrode, a high-voltage impulse is applied successively until the main arc is struck by the system, which comprises three circuits. The first circuit comprises a ballast resistor R 1 , a contact RL<SP>1</SP> of a main relay, a coil RL t  of a time delay relay, a resistor R 2 , the secondary winding SW of a pulse transformer PT, and the auxiliary gap 2, 3, all connected across a D.C. supply terminals 7, 8. Connected between the resistor R 1  and terminal 8 is a second circuit comprising the current coil of the main relay CRL and the main arc gap 1, 2. The third circuit connected in parallel with the third comprises the parallel combination of a capacitor C and the potential coil PRL of the main relay, connected in series with the normally open contact RL<SP>1</SP> t  of the time delay relay. After energization of the auxiliary arc, should the main arc not strike, the delay contact RL<SP>1</SP> t  closes, energizing the coil PRL which opens contacts RL<SP>1</SP>, RL<SP>11</SP>, interrupting the impulse circuit and de-energizing coil RL t . Due to the contacts of each relay being connected in series with the other relay, the relays are operated alternately with a time delay due to capacitor C, as long as starting button S is depressed, until the main arc current through coil CRL holds the main relay contacts open. The initial delay is arranged to be longer than the subsequent delays. The time delay relay may be of the oil-filled dashpot type.
Patent GB-447295-A (GB)
Title: Improvements relating to reinforced concrete or analogous flooring
IPC: E04B9/18
Filed: 1934-12-20
Abstract: 447,295. Floors; girders. SIEGWART FIREPROOF FLOOR CO., Ltd., McDOWELL, C. T. J., and MASTERMAN, O. J., 231, Strand, London. Dec. 20, 1934, No. 36556. [Class 20 (iv)] Relates to a device for supporting a ceiling from a floor formed of juxtaposed pre-cast concrete or like beams A of inverted-trough cross section, with inwardly-projecting flanges C. According to the invention, the device is in the form of a resilient bridge-member E adapted to span the interior of the beam in such manner as to transfer the weight of the ceiling to the sides of the beam. The member E is in the form of an arched metal strip having upwardly-turned ends which are fitted with insulating thimbles G of felt, rubber or the like. The centre of the member E is apertured for the passage of a threaded bolt H, upon which is screwed a nut J above the member E. Ceiling battens N are secured on the bolts H by nuts and are insulated from the beams by pads O. The lower end of each bolt H is provided with an insulating sleeve K. The flanges of the beams are connected at intervals by integral webs. The Provisional Specification describes also the bridge-member E as of wood or concrete.
Patent GB-799199-A (GB)
Title: Improvements in or relating to methods for the continuous production of sulphonated organic substances
IPC: C07B45/02
Filed: 1954-12-17
Abstract: <PICT:0799199/IV (b)/1> Organic compounds are sulphonated (this term being used to include also sulphation) by a continuous process employing chlorsulphonic acid or vaporized SO3 comprising continuously cycling acid sulphonated product in liquid phase through a closed circuit, removing continuously or at short-time intervals from the circuit an amount of sulphonated product per hour which ranges from one fifth to one thirtieth by weight of the quantity of product circulated and similarly feeding continuously or at short time intervals into a mixing zone forming part of the closed circuit, at a point remote from the withdrawal point, a quantity, corresponding to the withdrawal rate, of the substance to be sulphonated in the liquid state or dissolved in an inert liquid and of the chlorsulphonic acid or vaporized SO3.  A preferred method utilizing SO3 vapour, diluted or not with an inert gas, comprises circulating sulphonated product by a pump 1 through a cooler 2, a duct 3, a packed absorption tower 4 and a return duct 5.  Vaporized SO3 is blown into tower 4 via line 9 and the substance to be sulphonated is introduced through valved line 7 counter-currently to the SO3 vapours and sulphonated product is withdrawn through line 6. If desired, parallel-flow operation may be used wherein the vaporized SO3 may be introduced at 10, otherwise provided as a gas vent.  When the sulphonated product is very viscous the tower 4 may be replaced by a simple tube in which the reaction mixture is stirred by a spiral or worm screw; in addition, a perforated disc diaphragm may be placed in duct 5 to facilitate the mixing. Sulphonation with chlorsulphonic acid may be effected using the parallel flow method described above, the hydrogen chloride formed being removed from the tower or in a suitably disposed degasifier, the chlorsulphonic acid may be diluted with an inert solvent.  The withdrawn acid sulphonated product may be neutralized by a continuous method analogous to the closed circuit sulphonation wherein already neutralized product is cycled through the circuit, a fraction amounting by weight to 3 1/2 to 20 per cent thereof being withdrawn per hour continuously or at short spaced intervals and acid sulphonation product and a neutralizing amount of alkaline solution, together equal in weight to that of the product withdrawn, correspondingly introduced into the circuit at a point remote from the withdrawal point and the illustrated sulphonation apparatus may be used for this neutralization.  Examples describe the sulphonation of C8-C18 primary fatty alcohols, dodecyl benzene and technical lauric ethanolamide using chlorsulphonic acid or a mixture of SO3 vapours and air; the sulphated alcohols are neutralized, after degasification, by the continuous method above described. Specification 680,629 is referred to.
Patent GB-1025348-A (GB)
Title: Apparatus for removing grit from sewage
IPC: B01D21/04
Filed: 1964-09-08
Abstract: <PICT:1025348/C1/1> Sewage flows longitudinally down a settling chamber (1), Fig. 1 (not shown), and out over weir (8), and is also circulated perpendicularly to the longitudinal flow so that grit is deposited in a central trough 11 or on adjacent slopes 12, 13. This circulation is effected by air supply headers 44 which run along chamber (1) behind vertical baffle 50.  The upward flow in zone 51 washes attached organic matter from the suspended grit, which is then able to fall to slope 13, where it is scoured further and then slides into trough 11.  The grit is removed from trough 11 by buckets (19), carried between endless chains (21), which empty into a trough (28). The air outlets 45 are spaced further apart to reduce the circulatory velocity towards the outlet end of chamber (1).
Patent GB-522660-A (GB)
Title: Improvements in or relating to electrical resistances
IPC: H01C17/24
Filed: 1938-12-19
Abstract: 522,660. Non-metal resistors. FIDES GES. FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. Dec. 19, 1938. No. 36934. Convention date, Dec. 18, 1937. [Class 37] In order to adjust the final value of a resistance, metal or other conducting layers are provided on the surface of the resistance and are ground away until the resistance has the desired value. The terminal contacts may be used also for correcting layers, being made initially larger than necessary and reduced in size for correction. The correcting layers may be formed by applying a colloidal silver salt in a solvent with reduction by thermal treatment, or silver layers may be made by applying silver oxide and reducing with simultaneous burning in. These layers may be welded to rigid metal contacts. The process may be applied to negative temperature coefficient resistances consisting of oxides and metals such as copper, titanium, and uranium. Terminal contacts b, c may be arranged in one plane on one side of the resistor a, a metal layer d being arranged on the opposite side. Correction of the resistance is effected by reducing the areas of the metal layers b, c, d. The Specification as open to inspection under Sect. 91, comprises also the following subjectmatter. In order to produce semi-conductor resistances of accurately predetermined value, a small percentage of alkali or alkali-earth compounds, for example sodium or potassium hydroxides or carbonates, is mixed with the initial substance before pressing, the pressed article being subjected to thermal treatment such as sintering. With a resistance of copper oxide, about 0.1 to 1 per cent. of sodium or potassium hydroxide or carbonate may be added, a sintering temperature of 700‹C. being suitable. This subject-matter does not appear in the Specification as accepted.
Patent GB-1003996-A (GB)
Title: Monofilaments
Inventor: MARKEY PETER
IPC: D01D5/20
Filed: 1963-09-20
Abstract: 1,003,996. Stubbed polyolefine monofilaments. IMPERIAL CHEMICAL INDUSTRIES Ltd. Aug. 14, 1964 [Sept. 20, 1963], No. 37049/63. Heading B5B. In a process for the production of stable, nodular, polyolefine monofilaments, molten polyolefine is extruded through a spinneret at a shear stress sufficient to cause irregular extrusion and to produce filaments of helical form, the extruded filaments are cooled and stretched, and the nodular filaments so produced are heattreated. Heat treatment may be carried out, suitably at a temperature 10-100‹ C. below the melting point of the polymer, when the filaments are in a relaxed state or when maintained at constant length. Heat treatment may be effected by means of an air oven. The polyolefine may be, e.g. polyethylene or polypropylene. For isolactic polypropylene, the spinning conditions are such that the shear stress in the polymer prior to issuing from the spinneret orifice exceeds 10<SP>7</SP> dynes per sq. cm. The filaments cut to short lengths including more than one nodule, may be used as reinforcing material for plaster or resinous articles. Specification 968,699 is referred to.
Patent GB-1476941-A (GB)
Title: Process for printing or pad-dyeing textile materials with  reactive dyestuffs
IPC: D06P1/00
Filed: 1974-08-23
Abstract: 1476941 Dyeing or printing with reactive dyestuffs HOECHST AG 23 Aug 1974 [25 Aug 1973] 37161/74 Heading D1B Textile materials containing hydroxy or carbonamide groups e.g. cotton, linen, viscose, copper rayon, staple fibres, wool, silk, palyamide fibres and mixtures thereof are pad-dyed or printed with a print paste or padding liquor comprising a water-soluble reactive dyestuff, barium carbonate and optionally a thickener and/or auxiliary agent, drying the material, applying an aqueous solution of sodium sulphate thereto and then subjecting the material to steam fixation. The print paste (preferably containing urea) or pad dyeing liquor preferably contains 10-20 grams barium carbonate per Kg, and the sodium sulphate solution has a concentration of 5-20%. The sodium sulphate solution may be applied by padding, nip-padding, overprinting or spraying. The Examples describe the printing of mercerised cotton staple fibre and knit cotton fabrics with reactive anthraquinone and azo dyestuffs.
Patent GB-1200145-A (GB)
Title: Retractable cigar lighter
IPC: F23Q7/00
Filed: 1968-08-05
Abstract: 1,200,145. Electric cigar lighters. FALCOS S.p.A. 5 Aug., 1968 [6 Sept., 1967], No. 37312/68. Heading F4F. A retractable electric cigar lighter for mounting on a motor vehicle instrument panel comprises a tubular body 10 having an open end and a closed end, a metal bushing 16 axially slidable in the body 10 and housing a lighter member 18 axially slidable in the bushing 16 and having a knob 24 at one end which can enter the body 10, a spring 26 biasing the lighter member 18 to a position in which the knob 24 projects from the bushing 16, a fixed limit stop 34 carried by body 10 and engageable by an annular raised bead 32 on bushing 16 to limit travel thereof towards the closed end of the body 10, releasable retaining means comprising bimetallic nippers 14 to retain the lighter member 18 to complete an electrical heating circuit therefor when the lighter member 18 is urged towards the closed end of the body 10, and stop-pawls 42 on resilient springs 40 for resiliently retaining the bushing 16 in the body 10 in a position in which the knob 24 projects from the open end of body 10 after release of the lighter member 18 by the bimetallic nippers 14 upon completion of heating of the lighter member 18. The spring 26 surrounds a stem 22 fast between lighter member 18 and knob 24 and spring 26 is pre-stressed between an annular collar 28 at the inner end of knob 24 and an annular internal flange 30 formed in the wall of bushing 16. In the inoperative position, Fig. 1, the annular bead 32 on bushing 16 abuts against stop 34 and member 18 is urged by spring 26 towards the open end of body 10 until it abuts flange 30, knob 24 being recessed into the open end of body 10. To use the lighter the knob 24 is pushed further into the body 10 to a heating position, Fig. 2 (not shown), when spring 26 is compressed and member 18 is gripped by the bimetallic nippers 14. Upon the predetermined temperature being reached the member 18 is released and under the action of spring 26 moves to the ready position, Fig. 3 (not shown), to abut the flange 30 on the bushing 16 to thereby carry the bushing 16 with it. The movement of the bushing 16 is halted by the action of the stop pawls 42 on the bead 32 and in this position knob 24 projects from the body 10. Adjustable resilient tongues (44) may act between the bushing 16 and the body 10 to give controlled braking of the movement of the bushing 16 under the impetus of the member 18 when the latter is released from the bimetallic nippers 14.
Patent GB-1158041-A (GB)
Title: Form Assembly for Casting Concrete Walls
Inventor: CAPEK RICHARD CHARLES
IPC: E04G17/065
Filed: 1966-08-19
Abstract: 1,158,041. Wall shuttering. SYMONS MFG. CO. 19 Aug., 1966, No. 37369/66. Heading E1S. Wall shuttering has ties each comprising a rod having bolts 20 at each end, each bolt passing through the junction where four shuttering panels meet, the panel frame 32 of each panel being inset at 38 to provide a space for the bolt on which is held by a nut 110, a plate 80 engaging the offset parts of the frame. The nut and plate have interfitting concave and convex surfaces allowing for inclination of the shuttering for battered walls. The bolt 20 fits in cut away corners 42 of the shutters and passes through a slot in the plate 80 in which it is held while erecting the shuttering, by a yoke 74 sliding in grooves in the plate and engaging an annular groove 70 in the bolt. One side of the plate has a wedge-shaped lug 104 engaging a V- shaped notch formed by bevelled corners 106 on two panels and the other side has a bolt and nut 100 engaging the panel (frame. The panels are secured together iby bolts through their frames. The free edges of the top and bottom panels have the ties arranged so that the lugs 104 on the tie plates engage notches 108 in the panel frames above or below the lower or upper shuttering edge.
Patent GB-1270059-A (GB)
Title: Pipe bending method and device
Inventor: GALPERIN ABRAM ISAEVICH
IPC: B21D9/00
Filed: 1970-08-04
Abstract: 1,270,059. Angular bending. A. I. GALPERIN, L. V. VISHNYAKOV and B. V. POKROVSKY. 4 Aug., 1970, No. 37509/70. Heading B3E. A method of cold bending pipes comprises introducing a device with bending elements, into the pipe, bending the pipe by actuating said elements and moving said device freely inside the pipe after bending for the next bending operation. The device comprises a rigid frame 1 mounted on spring-loaded wheels 2 and is driven through the pipe by an electric motor 21 through a speed reducer 22 coupled to one of the wheels. Secured to the middle of the frame is a bending shoe 7 facing the stretching portion of the pipe 6. On the ends of the frame are located the bending elements comprising two hydraulic cylinders 8 mounted for swinging on rolls 9 and held in the vertical position by springs 10. The cylinders carry articulated segment heads 12. Expansion mechanism installed in the middle of the frame for improving the stability of the pipe wall under compression during bending comprises three vertical 13 and six horizontal 14 hydraulic cylinders carrying articulated curved segment heads 16. The vertical cylinders 13 are connected by rods 18 to the bending shoe 7 and all cylinders are powered by an electric motor 20 (Fig. 6, not shown). Guide rollers 23 locate the frame in the tube. In operation the pipe 6 is placed on supports 24 one of which has a seat 25 for accommodating the device at the beginning and end of the operation. The device is rolled into the pipe and stops adjacent the seat 25 whereupon the segment heads 16 are expanded into contact with that part of the pipe to be deformed. The segment heads 12 of the bending element are actuated to bend the pipe (Fig. 8). The end of the pipe rising during bending is supported by a hoist 27.
Patent GB-979206-A (GB)
Title: Improvements in or relating to elastically stretchable cords
IPC: D07B1/14
Filed: 1963-09-24
Abstract: An elastically stretchable cord comprises a core of parallel rubber-elastic threads surrounded by three concentric braided coverings, the innermost braided covering consisting of textile material which is non abrasive as respects contact with the rubber core, the middle covering comprising metal so disposed within the substance of the braid as to prevent infrared rays from being transmitted to the core, and the outer covering comprising braided strands, which are resistant to mechanical injury.  The innermost covering may be braided of soft unglazed cotton or alternatively synthetic yarns, which may be spun or balked yarns, and which are resistant to mildew.  The middle covering may be braded from metal yarn or such yarns reinforced with tedtile yarns.  Alternatively the middle covering may be braided of an organic yarn coated with metal or of an organic material and metal laminated yarn.  The outer covering may be braided from nylon coated with vinyl, or other synthetic material may be used, such for example as polypropylene.
Patent GB-1436876-A (GB)
Title: Weft detector
IPC: B65H67/06
Filed: 1973-08-08
Abstract: 1436876 Weft detector SINGER CO 8 Aug 1973 [29 Jan 1973] 37564/73 Heading DIE A system for determining the necessity for bobbin changing in a loom comprises a light source 32 and photocells 28, 30 adjustably mounted to sense light reflected from either the bobbin 36 (when empty) or the weft 50 thereon and wherein there is provided circuitry which can distinguish between scattered light received from an uneven weft circuit and received by both photocells equally and light reflected from an empty bobbin and received only by photocell 28. The photocell 28 comprises a pair of photocells 27, 29 and photocell 29 acts to sense the arrival of the weft to be sensed and prevent accidental operation by stray light. Control circuitry and power supply: Power supplied from a source 62 is first rectified by a circuit 63 and passes through a singe limiter 114 and isolating diode 114 which isolates the control circuitry 135-136 from a constant voltage lamp supply circuit 73 which energises lamp 32. The weft changing mechanism, indicated diagrammatically by means of a solenoid 60 comprises an inhibiter circuit 135 the functioning of which depends on the extra photocell 29 which senses the presence of the weft. If the weft or bobbin is .present then circuit 135 allows a comparator circuit to compare the outputs of photocells 27, 30. If these outputs are similar then the bobbin still has weft and a comparator circuit 134 remains in steady state. When the weft is exhausted the operates a multivibrator circuit 136 to change the bobbin through solenoid 60.
Patent GB-1122991-A (GB)
Title: Nuclear reactor with a pebble-bed of fuel elements
IPC: G21C13/02
Filed: 1965-09-02
Abstract: 1,122,991. Reactors. BROWN BOVERI/ KRUPP REAKTORBAU G.m.b.H. 2 Sept., 1965 [12 Sept., 1964], No. 37605/65. Heading G6C. To ensure that the fuel pebbles situated at the periphery of a pebble bed reactor move uniformly with the other pebbles towards the exit 2 of a cylindrical core vessel 1, the inner wall 3 of the vessel is formed with an annular series of equispaced recesses or projections 4 having surfaces inclined to the vessel axis. The recesses or projections may be arranged in rows situated one above the other, the recesses or projections of one row lying between those of an adjacent row.
Patent GB-1059907-A (GB)
Title: Environmental test chambers
IPC: B01L1/00
Filed: 1965-09-03
Abstract: 1, 059, 907. Test chambers. INSTRON CORPORATION. Sept. 3, 1965 [Sept. 8, 1964], No. 37817/65. Heading G1S. A test chamber for use in stress-strain tests comprises a main portion 10 and an extension 12, (see Fig. 1, not shown), and a pivoted door formed by outer and inner metallic skins 18, 20, 22 and 24, 26, 28 respectively, the skins being spaced by insulating material e.g. fibre glass and heating wires 42, 44, 46 being distributed over the surfaces. The door is provided with infrared reflective sheets 66 to prevent heat losses. A fan 84 is used to break up convective currents forming in the chamber and a temperature probe is situated at 90. In use for stress-strain tests the specimen is clamped to bars 96, (see Fig. 2, not shown), which extend through insulated caps positioned in opposed apertures 32, 34 formed in the test chamber.
Patent GB-1454285-A (GB)
Title: X-ray film cassette
IPC: G03B42/04
Filed: 1973-08-10
Abstract: 1454285 X-ray film cassette CIBA-GEIGY AG 7 Aug 1974 [10 Aug 1973] 37953/73 Heading G2X In an x-ray film cassette wherein an x-ray film is located within the confines of four shallow walls located on the base-plate I, a hinged member 5 is located on the base-plate being either at least a portion of an x-ray intensifying screen 4 or a metal plate co-planar with the intensifying screen so that when the cassette is turned over and the cassette is opened the end of the hinged member falls away from the base-plate. In falling the member with the cassette in the turned over position (as shown) helps the x-ray film to slide out of the cassette. The distance of fall can be limited by a tie member or by providing an abutment on one of the shallow walls. Preferably the hinged member a lead plate co-planar with the intensifying screen and forming a mask.