baber/WOPTO huggingface dataset:
Patent GB-549424-A (GB)
Abstract: 549,424. Gas washer. THORNE, A. E., and ASHWELL & NESBIT, Ltd. Sept. 1, 1941, No. 11146. [Class 55 (ii)] Apparatus for separating dust from air or gases comprises a compartment 3 into which the air enters by an inlet 6 being directed downwardly by curved baffles 8 through a water spray from pipes 9, and through tortuous passages between plates 7a. The air then passes by a passage 5 up through a filter 10 in an adjacent compartment 3a, and through a water spray from pipes 11 before passing through a moisture eliminator 13 and a grille 12. A settling tank 2, into which dust-laden water falls through a water sealed outlet 18 from an inclined plate 16, is provided with hinged covers 14.
Patent GB-1384065-A (GB)
Title: Process for the purification of organic isocyanates
IPC: C07C265/00
Filed: 1971-11-30
Abstract: 1384065 Isocyanate purification IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Oct 1972 [30 Nov 1971] 55497/71 Heading C2C Organic isocyanates having a boiling point above 100‹ C. at atmospheric pressure are purified by reducing their content of hydrolysable chlorine-containing impurities by heating the isocyanate, optionally in the presence of a solvent, at a temperature above 200‹ C. under such conditions that boiling under reflux takes place and that the reflux condensate is returned to the boiling liquid in the liquid state. The temperature differential between the returning reflux condensate and the boiling liquid is preferably not more than 100‹ C. An inert gas may be passed through the boiling liquid during the process.
Patent GB-1207862-A (GB)
Title: Improvements in or relating to scarfing
IPC: B23K7/06
Filed: 1967-12-06
Abstract: 1,207,862. Scarfing. L'AIR LIQUIDE, SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. 6 Dec., 1967 [13 Dec., 1966], No. 55499/67. Heading B3V. [Also in Division F4] A method of initiating the scarfing of a workpiece 18 comprises (a) directing a scarfing torch towards the workpiece 18; (b) bringing the heating flame to the required scarfing intensity; (c) rotating the torch nozzle about an axis parallel or coincident with the nozzle; and (d) inclining the torch axis about a point 27 on the workpiece surface, the steps (b)-(d) being carried out simultaneously or successively with step (b) being carried out before step (c). The heating flame 10 of the torch is formed by a gas mixture delivered through holes 8 in a part 6, and initially the amount of cutting oxygen, delivered through a duct 4, is small or nil. The torch is rotated about its own axis and moved towards the workpiece 18 to the position 22, during which the oxygen supply may be increased to the required scarfing value. The initiation of the scarfing may be facilitated by introducing iron powder or combustible gas through a passage 14 into the flame, feeding a steel rod into the flame or using a plasma jet to heat the workpiece surface. The torch is thereafter inclined so that the angle 32 is greater than 20 degrees and the angle which the nozzle axis 26-28 forms with a straight line on the surface 18 parallel to the displacement of the workpiece is less than 50 degrees. During the inclination of the torch to the position 24, the oxygen supply is increased to the required scarfing value if it has not already attained this value.
Patent GB-1487776-A (GB)
Title: Method and apparatus for producing aggregate-filled asphalt materials
IPC: E01C19/10
Filed: 1974-12-23
Abstract: 1487776 Mixing plant H NIELSEN & SON MASKINFABRIK AS 23 Dec 1974 [28 Dec 1973] 55639/74 Heading B1C [Also in Divisions El F4 and G1] In a plant producing aggregate-filled asphalt incorporating a mixer 2 fed with hot asphalt through pipe 1 and with sized dried aggregate from a weigher 4 and sizing bins 22 .. 28, wherein the bins underlie sieves 21, 25 fed through an elevator shaft 18 from a drier 9 having a mixed aggregate input 8, the vapour and dust in the mixer 2 are sucked out through or around the aggregate supply conduits and are burned in the drier 9, whereafter the combustion products, together with dust from the input aggregate at 8, are sucked through a cleaner 12 (e.g. a cyclone) to a chimney 16. A warm air-tight suction path from the mixer 2 to the drier 9 is provided through the weigher (at 31) and sizing bins (at 36) to a housing 38 enclosing the sieves, and thence through the elevator shaft 18 to the drier 9. The drier 9 may be rotary and has an oil-fired burner 10. The weigher 4 has a bottom shutter 5 whereby while one aggregate/asphalt batch is being mixed for eventual discharge through gate 7 to a truck, the next aggregate batch can be made up. The two multi-layer sieves 21, 25 are associated with a shaft 29 for oversize aggregate.
Patent GB-1177998-A (GB)
Title: Compositions comprising Block Polymers
IPC: C08K3/00
Filed: 1967-12-08
Abstract: 1,177,998. Block polymer composition. REXALL DRUG & CHEMICAL CO. 8 Dec., 1967 [8 Dec., 1966], No. 55848/67. Heading C3P. A composition comprises a block copolymer of (a) an α-olefin polymer block and (b) a C 2-8  alkyl ester of acrylic acid polymer block, and at least 10% of a filler. The block polymer may suitably be obtained by a sequential polymerization in which the first formed polymer block (a) is treated with oxygen and ammonia or - an amine and subsequently reacted with the acrylate to form the second block (b). Suitable fillers include carbon black, silica, alumina, titania, molybdena, chromia, antimony trioxide, ammonium fluoborate, and ammonium fluoantimonate. In the examples polypropylene-poly-n-butylacrylate and polypropylene -polyethylene -polybutylacrylate block copolymers are mixed with antimony trioxide and a chlorinated hydrocarbon, silica or carbon black, and also a stabilizer comprising (i) a phenolic resin, (ii) stearyl-thiodipropionate, (iii) 2,6-di-(-butyl-p-cresol and (iv) condensation product of 3-methyl-6-t-butyl phenol and crotonaldehyde.
Patent GB-1374797-A (GB)
Title: Method and apparatus for detecting a break in a pipeline containing  gas under pressure
IPC: F17D5/06
Filed: 1971-12-06
Abstract: 1374797 Acoustic detection of pipe-line breaks TAFT BROADCASTING CORP 6 Dec 1971 [30 Dec 1970 8 Nov 1971] 56564/71 Heading H4D The occurrence of a break in a pipe-line containing gas under pressure is detected at a monitoring station on the pipe-line by sensing there the compressional wave created in the gas by the break and propagated through the gas at the speed of sound. In embodiments for sensing the wave while ignoring sounds propagating in the opposite direction (from a pumping station) two spaced transducers on the pipe-line are used. The output of one transducer is delayed by an amount equal to the wave propagation time between the transducers, then is fed together with the other transducer ouput to a difference amplifier whose output, if above a threshold value, actuates an indicator. For monitoring a branched pipe-line, a respective transducer pair is used on each branch. Details of circuits for processing the transducer outputs are given.
Patent GB-1168268-A (GB)
Title: Improvements in or relating to Lithographic Plates
IPC: G03G5/10
Filed: 1966-12-19
Abstract: 1,168,268. Electro-photographic lithographic plates. RANK XEROX Ltd. Dec.19, 1966 [Dec.27, 1965], No.56667/66. Heading G2H. Lithographic plates comprise a glass photoconductive layer having a hydrophilic surface bearing a hydrophobic xerographic image. The glass photo-conductive layer is on a conductive support and is either a homogeneous single phase layer or a dispersion of an organic or inorganic photo-conductor in a glass binder. The image may be formed by imagewise exposing a uniformly charged layer, developing the resulting electrostatic image with a toner preferably admixed with a liquid or magnetic carrier, and fusing the developed toner image to the layer. The plate may be cleaned for re-imaging by removing the toner image with solvent and, if necessary, fusing the glass layer.
Patent GB-1221759-A (GB)
Title: Improvements in or relating to concrete pipe forming machines
IPC: B28B17/00
Filed: 1969-11-20
Abstract: 1,221,759. Moulding pipes. HYDROTILE MACHINERY CO. 20 Nov., 1969 [22 July, 1969], No. 56935/69. Heading B5A. A vertical pipe casting machine in which a rotary packer head 28 is drawn upwardly and axially through a mould 13 whereby concrete fed on to the head by a conveyer 19 is spread radially by vanes 33 and formed into a pipe includes means to control the concrete feed to maintain the level of concrete above the head substantially constant. In Fig. 2 a probe 44 for sensing the concrete level is located in an electrical sensing circuit comprising a control unit 49 and a normally closed limit switch 48. The probe is adjustably attached to a tube 26 attached to the head, and when the concrete contacts the probe the control unit 49 operates to slow or stop the feed conveyer motor 42. The switch 48 is operated to stop the motor when the head reaches the top of the mould. In a modification the conveyer is driven by an hydraulic motor supplied with pressure fluid from a pump via two solenoid operated valves operated by the control unit whereby one or both of the valves are operated depending on the concrete level to stop or slow the conveyer motor. Alternatively instead of a probe the sensing unit comprises an air pressure chamber vented by a valve in response to the concrete level, and an electro-pneumatic transducer signals the control unit in response to the air pressure in the chamber. The sensing unit may comprise an ultra-sonic signal transducer which senses the concrete level with ultra-sonic signals, the control unit being operated by such signals; alternatively the sensing unit comprises a radar unit sensing the concrete level with electromagnetic signals which effect the operation of the control unit.
Patent GB-1429970-A (GB)
Title: Thermal power plant
IPC: F01K3/18
Filed: 1973-12-07
Abstract: 1429970 Steam generation in power plant WAAGNER-BIRO AG 7 Dec 1973 [7 Dec 1972] 56937/73 Heading F4A A power plant, in which for example a nuclear reactor 1 provides heating medium for a steam generator 2 which feeds main generating turbines 4, includes displacement type hot water accumulators 5 to release energy at times of peak demand and a high pressure water accumulator 7 which provides the motive power to move water from accumulators 5 to further steam generating means 6 to run turbine 10. In the embodiment shown feed-water for the generating means 6 is extracted downstream of the first means and fed via throttle means to each of the means 66. Accumulators 5 are fed from a feedwater tank 15 and accumulator 7 receives feedwater via line 32 and heat energy in the form ofsteam extracted via line 33 from the turbine 4. As shown water withdrawn from accumulator 7 via line 30 and superheaters 9 feeds into an ejector 8 to circulate water from accumulators 5 through heat exchangers 6. In further embodiments ejectors are placed between the stages of a multiple stage flash steam generator (Fig. 3, not shown); and line 30 feeds a turbine which pumps the water through the heat exchangers (Fig. 2, not shown). Alternatively (Fig. 5, not shown) the accumulators are associated with feedwater heaters in the inlet line to generator 2 which can function to generate steam at peak load.
Patent GB-1308928-A (GB)
Title: Accumulator plates
IPC: H01M4/73
Filed: 1970-12-01
Abstract: 1308928 Moulding supports on accumulator plates L JUNGFER [trading as AKKUMULATORENFABRIK DR LEOPOLD JUNGFER] 1 Dec 1970 [3 Dec 1969] 57028/70 Heading B5A [Also in Division H1] Accumulator plates having a grill-shaped current conductive system of lead or lead alloy have a grid-shaped plastics support moulded thereon to leave bare the contact surfaces of the plates are formed by injection- or compression-moulding using the accumulator plate as a core in a hollow mould having areas engaging the plate in a fluid-tight manner at the edge of the contact surfaces thereof. As shown in Fig. 1, the plate 1 comprises a frame 2, traversed by fillets 3, having a lug 4, and covered with a plastics grid support 5 integral with a sheath 6. The sheath 6 terminates at the corners a of the outer frame parts, leaving the inner edge thereof bare, and also at edge b leaving lug 4 bare. Along these bounding edges, projections on the mould parts deform the frame 2 to prevent passage of plastics. The frame 2 has fixing cams 7 which are deformed by mould projections (9, 9<SP>1</SP>, Fig. 5, not shown) sealing the surfaces (2a, 8a, 2a<SP>1</SP>, 8a<SP>1</SP>) therebetween.
Patent GB-1344125-A (GB)
Title: Process for production of fried potatoes
IPC: A23L19/18
Filed: 1971-12-08
Abstract: 1344125 Fried potato product GENERAL FOODS CORP 8 Dec 1971 [18 Dec 1970] 57121/71 Headings A2 D and E A deep-fried type potato is prepared by subjecting potato pieces to micro-wave heating for a time sufficient to cause a moisture reduction which reduction is less than 3% by weight, deep frying and then heating to remove excess moisture. The potato pieces may be soaked in a salt, e.g. sodium chloride, solution prior to micro-wave treatment. The final step of heating to remove excess moisture may be by micro-wave heating. The dried potato pieces have good storage properties and, when required for use, may be rehydrated by soaking in water, followed by heating in an oven.
Patent GB-1223918-A (GB)
Title: Roller conveyors
Inventor: WOLSKI K
IPC: B65G47/26
Filed: 1968-12-03
Abstract: 1,223,918. Roller conveyers. DEMAGZUG G.m.b.H. 3 Dec., 1968 [2 March, 1968], No. 67411/68. Heading B8A. The driven rollers 3 of a roller conveyer are driven by an endless chain 11 in engagement with sprockets 9 each mounted for rotation on the shaft 3a of a roller 3 and releasibly coupled to said roller by a dog coupling 15 mounted for rotation with the shaft but axially movable therealong. The dogs 15b engage radially extending spring clips 27 in the sprocket 9 and are urged into said engagement by a spring 17. The dogs also have a control surface 15a for engagement with a cam surface (18a), Fig. 2 (not shown), of an operating rod 18 movable longitudinally of the conveyer, to move the coupling 15 axially and disconnect the drive to the rollers. The rod is urged into an inoperative position by a spring (20) and is moved by a passing load (23) Fig. 1 (not shown), engaging an arm (21) coupled to said rod to temporarily disconnect the drive to rollers behind the load and thus ensure spacing of the loads on the conveyer.
Patent GB-1411448-A (GB)
Title: Control of electrostatic development apparatus
IPC: G03C7/00
Filed: 1972-12-18
Abstract: 1411448 Electro-photography; automatic control of concentration XEROX CORP 18 Dec 1972 [28 Dec 1971] 58377/72 Headings G2H and G3R The intensity of a toner image, formed by powder applied by an electrostatic developing apparatus to a latent image on a rotating photoconductive drum 10, is monitored by measurement of light passing through a transparent electrode 36. The electrode is biased to a voltage representative of the latent image, receives toner from the same magnetic brush apparatus as the latent image and, as the electrode passes a photo-sensor is illuminated from within the drum. Comparison of the response of the photo-sensor with a reference gives a measure of whether the content of toner in the toner/ carrier developer used should be adjusted, and can be made to control the addition of toner. The comparison can be repeated for each of the coloured toners applied to colour separation images, and adjustment of their various references can be made to change the colour balance of colour images produced on copy sheets 45.
Patent GB-1140810-A (GB)
Title: Alternator assembly
Inventor: BAILEY SYDNEY BREEDON
IPC: H02J7/14
Filed: 1967-12-22
Abstract: 1,140,810. Protective arrangements; indicating devices for vehicle generating systems. FORD MOTOR CO. Ltd. 22 Dec., 1967, No. 58530/67. Headings H2H and H2K. An assembly, e.g. in a motor vehicle, comprises an alternator 1 connected to a battery 5 through a rectifier stack 3, and a fuse 21 is connected between each coil of the alternator and the rectifier stack. A lamp 23 is connected across each fuse 21 and gives an indication when the associated fuse blows.
Patent GB-1376895-A (GB)
Title: Simulated brick article of concrete or like material
IPC: B44F9/04
Filed: 1970-12-10
Abstract: 1376895 Concrete slabs BANBURY BUILDINGS HOLDINGS Ltd 10 March 1972 [10 Dec 1970] 58565/70 Heading E1B [Also in Division B6] A moulded article of concrete or other mouldable and settable material is provided with a simulated brick facing by (a) moulding the article to its desired shape including an outer surface having embossed regions in the shape of brick faces and separated by latticelike pattern below the surface level of the embossed regions and representing mortar joints between bricks, (b) allowing the article to cure or harden, (c) applying a first mask to cover the lattice-like pattern but to leave the embossed regions exposed, (d) applying an adhesive layer to the outer surface and the first mask so that only the embossed regions are coated with the adhesive layer, (e) spreading a layer of powder providing the colour and texture of brick on the adhesive layer, (f) removing the first mask, and (g) allowing the adhesive layer to cure. In a modification, the following steps are performed after the steps (a)-(d) instead of the step (e):-(h) the second mask exposing certain of the exposed regions only is placed over said first mask, (i) a layer of powder of the first colour of brick is spread on to the adhesive layer so that only those embossed regions exposed by the second mask are coated with a layer of powder of the first colour, (j) removing the second mask, (k) placing over the first mask a third mask covering those embossed regions that have already been coated with powder but exposing the remaining or some of the remaining embossed regions, (1) spreading on to the adhesive layer a layer of powder of a second colour of brick so that only those embossed regions exposed by the third mask are coated with the layer of powder of the second colour, (m) removing the third mask and where there are still embossed regions remaining uncoated with powder, (n) applying a further mask or successive further masks, coating the or each further mask with powder of a further colour of brick and removing the or each further mask, the steps (f) and (g) then being performed. The powder may be brick dust or crushed tile and the colour may be adjusted by mixing sand or a pigment therewith. The adhesive layer may be a mixture of a latex resin, water and cement,
Patent GB-589463-A (GB)
Abstract: 589,463. Convertible cooking and heating stoves. THIMBLETHORPE, J. S., and THIMBLETHORPE, W. S. March 20, 1945, No. 7009. [Classes 39 (iii) and 126] The heating-unit 23 of a stove is arranged for heating an oven, for warming a room and for frying. When the oven is in use, Fig. 4, the unit 23, radiating downwardly, forms the roof of the oven and the lid 17 forms the door. When a room is being warmed, Fig. 2, the lid 17 is moved to its top position and the heater unit closes the front of the oven. When used for frying, the unit 23 lies horizontally at the top of the oven, radiating upwardly and the lid 17 is swung into a vertical position at the back of the stove to act as a splash plate. A second heater unit 23a may be positioned, radiating upwardly, at one of three levels in the oven, or may, when a lower door 24 is displaced, be aligned with the unit 23 to extend the room-warming surface. The stove is of sheet metal and comprises an outer casing having adjustable feet 14 and fitted with partitions parallel with the side walls. Slots in the side positions form guides which are engaged by turned-over flanges on the oven 15, thus enabling the oven to be removed for cleaning purposes. The lid 17 is provided with side lugs with pivot pins 19 riding in slots 21 and connected to links 20 which are in turn pivotally attached to the partitions adjacent the back wall of the casing and below the bottom of the oven. The door 24 is slidable in slots in the partitions below the oven bottom, and when in an open position may be slid into the bottom of the stove where the top of the door rests on a step 27. The heating elements, of any usual construction, may comprise a metal box having a back-plate and containing heating elements exposed through an opening in the front. The unit 23 is carried on pivot pins, sliding in slots 32 in the partitions, and is pivotally attached to links 33 carried by a spindle below the bottom of the oven. The rear of the lower unit 23a rests on lugs 39 at the back of the oven while the front is fitted with trunnions engaging in offset portions 38 of slots formed in the partitions. Electric power may be supplied to this unit by leads 40 or by contacts in the back of the oven. The links attached to the unit 23 may be of tubular form to carry 'electric power, gas or oil to the heating unit. The stove may be modified to fit flush with the wall of a room by omitting the swinging lid, further the casing of the stove may be made in two parts slidably connected so that the front of the stove may be drawn out to increase the internal dimensions, also thelinks 20 and 33 may be connected to a suitable lever which can be operated by foot or hand without using the handle 35 on the heating unit.
Patent GB-1456850-A (GB)
Title: Wire enamel for forming solderable and thermostable insu lated wire
IPC: H01B3/30
Filed: 1973-12-31
Abstract: 1456850 Polyesterimide coated wires SUMITOMO ELECTRIC INDUSTRIES Ltd 31 Dec 1973 [29 Dec 1972] 60312/73 Heading B2E [Also in Divisions C3 and H1] A wire enamel for coating and baking on a conductor to form a solderable thermostable insulated wire comprises an organic solvent solution of a polyesterimide which is the reaction product of (A) a dicarboxylic acid free of a 5 membered imide ring and/or a derivative thereof, (B) a dicarboxylic acid containing a 5-membered imide ring and/or a derivative thereof, (C) a trihydric or higher polyhydric aliphatic alcohol, and (D) a dihydric alcohol, the equivalent proportion of (A) being 10-40 equivalent %, that of (B) 20-50 equivalent % and that of (C) 40-55 equivalent % abased on the sum of the equivalents of (A) + (B) + (C). (A) may be an aromatic alicyclic or aliphatic dicarboxylic acid, and (B) may be the reaction product of an aromatic carboxylic anhydride containing a 5- membered cyclic carboxylic anhydride group and at least one other reactive group and either a primary amine containing a primary amino group and at least one other reactive group or a polyisocyanate. Numerous examples of components (A)-(D) are listed. Additional ingredients include a metal drying agent e.g. an ootoate, naphthenate resinate or linoleate of Zn, Cd, Pb or Cd; and/or a tetraalkyl titanate or chelate or acylate thereof; an optionally blocked polyisocyanate as crosslinker; and a polyamide resin, phenolic resin, melamine-HCHO resin, epoxy resin, urea resin or a silicone resin. In examples (2) and (5) reaction products are prepared by first reacting dimethyl terephthalate, glycerol and ethylene glycol in the presence of litharge using xylene as solvent, and reacting the product with the dumidodicarboxylic acid obtained by reacting trimellitic anhydride with either (1) diphenyl methane 4, 4' diisocyanate or (2) 4, 4' diamino-diphenyl methane. Reaction products are similarly prepared in examples 1 and 6 by reacting polyethylene terephthalate, glycerol, ethylene glycol and either the above diimidodicanboxylic acid (1) or the diimidodicarboxylic acid obtained by reacting trimellitic anhydride and 4, 4'-diamino-diphenyl ether, and in example (4) by reacting together dimethyl terephthalate, ethylene glycol, glycerol, trimellitic anhydride and 4, 4' diaminodiphenylmethane cresol and optionally solvent naphtha, and tetrabutyl titanate are added to the above reaction products and the resulting enamels are coated onto magnet wire and baked. In example 8 the insulated wire obtained in example (1) is provided with a further coating of nylon 66 in cresol. In example 9 the insulated wire of example (2) is provided with a self-bondable coating of a phenoxy resin in cresol. The additional coatings are then baked.