baber/WOPTO huggingface dataset:
Patent GB-1480726-A (GB)
Title: Load containers
IPC: B65D19/42
Filed: 1974-07-01
Abstract: 1480726 Box pallet; boxes ROSS & BONNYMAN (ENG) Ltd 1 July 1974 [11 July 1973] 33003/73 Headings B8H and B8P [Also in Divisions B7 and E2] A load container (not shown) comprises a rear wall, a base platform horizontally hinged to the rear wall and two side walls which are hinged to a respective side of the rear wall so that the side walls can swing inwardly and outwardly, the container further comprising means for locking the base platform in its lower (horizontal) operative position. The said means comprises a castor plate 1 fixed to, and projecting inwardly from, the bottom front portion of each side wall, each plate 1 having castors attached to its lower surface and a key-hole shaped slot 3 formed therein with an angle piece 4 secured to its underside so as to provide a limb or platform extending below the wider portion of slot 3. The base platform is provided with a stud 5 at each corner for engagement with the castor plate 1 on the associated side wall, each stud 5 having a head 6 and shank 7. When the base platform is being lowered to its operative position the hinged side walls are in a slightly splayed or swung-apart position relative to each other and each stud 5 enters the wider portion of the associated slot 3 such that its head 6 rests on the platform of the associated angle piece 4. The side walls are then swung towards each other so that the shank 7 of each stud 5 enters the narrower part of the associated slot 3 and then the stud head 6 slips off the platform of the angle piece 4 so that the stud 5 drops downwardly and the base platform is then in locking engagement with the castor plates 1. In order to raise the base platform to an inoperative position it must first be raised slightly so that the stud heads 6 clear the associated platforms and then the side walls are swung outwardly so that the head 6 of each stud 5 is located below the wider portion of the associated slot 3, and then the base platform can be raised fully. In a modification the base platform is pivotally mounted on one of the side walls instead of on the rear wall. The container also has a front closure comprising a door hinged to one of the side walls.
Patent GB-1015770-A (GB)
Title: Electric motor control system
IPC: H02P7/06
Filed: 1964-08-14
Abstract: 1,015,770. Automatic current control. WESTINGHOUSE ELECTRIC CORPORATION. Aug. 14,1964 [Aug. 30, 1963], No. 33206/64. Heading G3R. [Also in Division H2] Parallel-connected traction motors M1, M2, are accelerated by short-circuiting sections of resistor AR, switches R1-R4 being closed succesivelyby cam controller CC which is driven by pilot motor PM. When the current in control winding 21, which is connected across a section of accelerating resistor AR, reaches a value which causes the output voltage of magnetic amplifier MA to drop to the level of the voltage across battery B, the pilot motor stops. If the cam controller is over-driven, the battery voltage exceeds the output of the magnetic amplifier, and the pilot motor is reversed until the traction motor current has dropped to a desired value. A master controller MC actuates rheostat 16 in series with the winding 21. Dynamic braking circuits are established by closing contacts 39, 41, the pilot motor being reversed to regulate braking resistor BR. Control winding 23 on the magnetic amplifier detects the braking current for controlling the advance of the cam controller. The master controller MC actuates rhoestat 15 in series with the winding 23. Amplifier winding F2, F1, to respond to the rate-of-change of traction motor current. This prevents excessive rate-of-change during both the accelerating and braking operations.
Patent GB-1002672-A (GB)
Title: Slurried blasting explosives
IPC: C06B47/14
Filed: 1964-08-14
Abstract: A slurried blasting explosive composition, resistant to segregation of its ingredients during storage, comprises an inorganic oxygen-supplying salt, a particulate organic explosive, a gel-forming or thickening polysaccharide, water, and a metal chromate which is either sodium or potassium dichromate in an amount of 0.005-0.1% by weight or zinc or barium chromate in an amount of 0.05-1% by weight. The oxygen-supplying salt may be ammonium, sodium, barium, potassium, or calcium nitrate, or a mixture thereof.  Organic explosives referred to are TNT, PETN, tetryl, RDX, pentolite, composition B, smokeless powder, and mixtures thereof.  A small amount of urea may be added to obtain a more fluid mix. The polysaccharide is preferably a mannogalactan, for example guar gum or carob seed gum, and may be mixed with ethylene glycol or glycerine.  The chromate acts as a cross-linking agent on the polysaccharide, and its action may be delayed by addition of a small amount of a metal citrate or tertrate (e.g. potassium nitrate), citric acid, tartaric acid, or gluconic acid.  Specifications 869,155, 942,116, and 1,002,671 are referred to.  Canadian Specification 617,006 also is referred to.
Patent GB-824472-A (GB)
Title: Improvements in and relating to extruded tubes and cable sheaths
Inventor: BILLEN PETER
IPC: B21C25/06
Filed: 1957-10-24
Abstract: 824,472. Extruding. SCHLOEMANN A.G. Oct. 24, 1957, No. 33259/57. Drawings to Specification. Class 83 (4). In the continuous extrusion of metal tubes and cable sheaths, particularly of aluminium or its alloys, which are cooled immediately they leave the extrusion die and wherein the extrusion operation is temporarily stopped whilst the press is re-charged, the mandrel and die are adjusted axially relatively to each other before the extrusion is stopped to increase the size of extrusion orifice and hence compensate for the reduction due to cooling. The gap is increased gradually as the extrusion speed falls. During the stop period the gap is adjusted to compensate for the contraction of the die and the metal within the die orifice. When extrusion is restarted the size of the extrusion orifice is gradually decreased. Specification 765,367 is referred to.
Patent GB-1137646-A (GB)
Title: Improvements in or relating to the production of ammonium polyphosphate
IPC: C05B13/06
Filed: 1966-07-25
Abstract: 1,137,646. Ammonium polyphosphate; fertilizers. SWIFT & CO. 25 July, 1966 [18 Aug., 1965], No. 33324/66. Headings C1A and C1B. Ammonium polyphosphate is produced by reacting wet process H 3 PO 4  containing 54- 68% P 2 O 5  with anhydrous liquid or gaseous NH 3  at a temperature of 450-650 F., and immediately quenching the molten product. The process may be carried out in a tube 2-16 ft. long with spaced apart or concentric inlets. The H 3 PO 4  may be preheated to 140-180 F. and both reactants are introduced under pressure. A mole ratio of NH 3 /H 3 PO 4  of 0À8-1À6 may be used. The residence time in the tube is less than 1 sec. The molten jet from the tube may be impelled through the air (steam and NH 3  vaporizing) into a tank of water which is then brought to pH 5À0-8 with further NH 3 , or the end of the tube may be submerged below the water. Alternatively, the melt may be sprayed on to a rolling bed of ammonium polyphosphate solids to give a granular product. The product may contain 20-80% ortho-, 20-45% pyro-, and 0-40% other phosphates. It is said to complex the Fe and Al ions present in the H 3 PO 4  and render them soluble. Various product N/P ratios are specified. A fertilizer containing K (e.g. 6-18-6) may be produced if KCl is added to the tank of water, or if the product is processed with H 3 PO 4 , aqueous NH 3 , and KCl.
Patent GB-613047-A (GB)
Title: The manufacture of thorium salts
IPC: C07F5/00
Filed: 1945-12-10
Abstract: Thorium salts of hydroxyphenylsulphonic acids, aminophenylsulphonic acids or their higher homologues are prepared by the double decomposition in solution of a lead, alkaline earth, magnesium or alkali metal salt of one of the acids with a solution of a thorium salt of a strong mineral acid, such as sulphuric, hydrochloric or nitric acid, the latter being used in slight excess, and separating the metallic salt formed, if insoluble by filtration, the remaining liquor containing thorium phenylsulphonate being evaporated, or if soluble by extraction with a solvent from the mixed salts produced by evaporation. p  According to examples: (1) barium, calcium or lead paraphenolsulphonate is dissolved in hot water, a cold aqueous solution of thorium sulphate is added, the mixed solutions are allowed to stand and are then heated and filtered from insoluble sulphate, the remaining liquor is concentrated under reduced pressure in stages with intervening filtration, and the thorium salt is crystallized; (2) the thorium salt of sulphanilic acid is produced from the corresponding barium, calcium or lead salt by a procedure similar to that in example (1); (3) the potassium salt of acetylsulphanilic acid is dissolved in hot water, an aqueous solution of thorium nitrate is mixed therewith, the mixture is evaporated to dryness, and the potassium nitrate is removed from the dry mixture of salts by washing with glycerine.  The last example can be modified by starting with the magnesium salt and thorium chloride, the dry mixture being washed with alcohol to remove the resulting magnesium chloride.  Other described modifications are the double decomposition between thorium nitrate an potassium phenolsulphonate, utilising the variation of the solubility of potassium nitrate with temperature to effect a separation; and the double decomposition between thorium chloride and lead sulphonates, utilising the low solubility of lead chloride when cold.  The preparation of thorium salts of sulphonic acids having several phenolic groups and/or sulphonic acid groups; or several amino groups and/or sulphonic acid groups, the amino groups being free, acylated, arylated or alkylated; or any of the above salts being halogenated on their phenyl nucleus, is also referred to.
Patent GB-777827-A (GB)
Title: Process for the production and use of novel tanning agents and products produced by such process
IPC: C14C3/18
Filed: 1953-12-01
Abstract: A modified aminoplast resin is prepared by reacting an aminoplast resin having at least one reactive methylol group with a water-soluble amine base having at least one functional amino group, the amine base being used in an amount sufficient to eliminate all reactive methylol groups from the aminoplast resin. Specified aminoplast resins are the condensation products of formaldehyde with urea, thiourea, guanidine, melamine, dicyandiamide and acetylene diurea, while the preferred amine bases are urea, dicyandiamide, guanidine, acetylene diurea and melamine.  The reaction may take place in the presence of an alkaline catalyst and at a temperature in the range 75-110 DEG  C. The modified resins may be combined with an anionactive water-soluble or water-dispersible high-molecular weight organic compound containing one or more sulpho groups, the sulpho compound being either in the form of a neutral salt or in the form of a compound having a free sulpho group and used to treat leather or other permeable materials.  Specified sulpho compounds are lignin sulphonate and its neutral salts, vegetable tannins and quebracho extract solubilized by sodium bisulphite, and some of their neutral water-soluble salts and synthetic tannins, and their water-soluble salts.  The sodium salt of di-sulpho-dihydroxy diphenyl propane is particularly specified.
Patent GB-462067-A (GB)
Title: Improvements in devices for gauging gas caps in miners' and like safety lamps
IPC: F21L23/00
Filed: 1935-12-03
Abstract: 462,067. Gas cap gauges for miners' &c. lamps. HAILWOOD, E. A. Dec. 3, 1935, No. 33494. [Class 75 (iv)] A gas cap gauge for use with a miners' or like safety lamp comprises an assembly of blades or leaves B bearing on one or both surfaces one or more representations of a portion of a wick tube T, a white bead W, and varying heights and forms of caps C corresponding to various percentages of gas. The blades may be carried by a U-shaped guard G, and be pivotally mounted on a pin P having a loop for the attachment of a chain, string- or like carrying means. A screened viewing aperture may be formed by the closed end of the guard, or one or more viewing apertures may be formed in one or more of the blades, or in the guard itself, as at A<1>. The apertures may be fitted with coloured glass or other transparent material, and they may be formed with numbered recesses or the like A<3> for measuring purposes. The blades may bear printed matter in the form of instructions as to the manipulation of the lamp for gas testing purposes, or in the form of advertisements. The hinged blades may be secured together like a book, a concertina, or a folding rule, or the blades may be slidably mounted inside a guard. The blades may be formed in parts which may be opened and closed so that the representations correspond to different widths of wick.
Patent GB-427081-A (GB)
Title: Improvements in and relating to current transformers
IPC: H01F38/30
Filed: 1934-11-21
Abstract: 427,081. Current transformers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.. Nov. 21, 1934, No. 33495. Convention date, Nov. 21, 1933. [Class 38 (ii)] A current transformer for use with conductors which are insulated with compressed gas at a pressure of about 10-15 atmospheres is mounted in a casing 1 which is connected in the pipe line so that the transformer is insulated by means of the compressed gas, the casing is in two parts and has an opening 4 through which the core 5 passes, the casing may be of insulating material. If it is of metal, it is preferably of non-magnetic material and circulating currents are reduced either by means of inserts of insulating material or by using a metal having a high resistance such as cast iron with additions of nickel or manganese and nickel. The primary winding is formed by coiling the conductor 3 which is provided with an additional insulation layer 2.
Patent GB-1529986-A (GB)
Title: Closure caps
IPC: F01P11/02
Filed: 1976-08-12
Abstract: 1529986 Radiator caps GENERAL MOTORS Ltd 4 Aug 1977 [12 Aug 1976] 33586/76 Heading B8T A radiator cap has 3 cup-shaped members 3, 6, 14 arranged in nested fashion, biased into sealing position by springs 16 and 20 and having 3 sealing members 9, 11, 17. An excess air pressure is released by forcing seal 11 off cup member 6 and venting through passages 23, 24, while air enters to relieve sub-atmospheric pressure by forcing seal 17 away from seal 11.
Patent GB-1359364-A (GB)
Title: Device for destroying machinery
IPC: F42B3/00
Filed: 1971-07-16
Abstract: 1359364 Thermo-aluminic devices ELEKTRO-THERMIT GmbH 16 July 1971 [18 July 1970] 33637/71 Heading F3A [Also in Division B3] Tanks, gun barrels &c. are rendered inoperative by a device comprising a fire-resistant casing 10, 11 containing a thermo-aluminic reaction mixture, at least one opening 12 in the casing, and igniter means 1 and ignition transmitting means. The latter means comprise a casing 2 containing an explosive 7, a perforated tube 3, a perforated ring 4 between the tube 3 and casing 2, easily meltable or combustible means 6 covering the perforations in the tube 3 and ring 4, and an ignition rod 8 extending between the tube 3 and explosive 7. Operation of the manual, friction igniter 1, or an electric igniter, ignites the head 9 of the highly combustible rod 8 and the heat generated melts the polyvinyl chloride foil 6 covering tube 3. The ignition rod 8 now reacts the explosive 7, the heat generated melting the cover 6 over the holes in ring 4 to relieve the pressure and also melting the casing 2 to start the thermoaluminic reaction, which melts the sealing plug 14 and allows the reaction products to escape. A perforated metal tube 16 surrounds the rod 8.
Patent GB-172969-A (GB)
Title: Direct current rotary transformers with arbitrarily variable subdivision of pressure
IPC: H02K47/12
Filed: 1921-12-15
Abstract: 172,969. Della Riccia, A. Dec. 16, 1920, [Convention date]. Rotary transformers; machines with two or more armatures; pole-pieces, cores, yokes, and carcass structures; dynamos, regulating; motors, controlling; commutating poles. - A machine for subdividing a constant line voltage for supplying electric motors used in traction. hoisting, rolling mills, and the like comprises one or two armatures or armature parts each having one or two windings and a subdivided field-magnet system so arranged that the flux acting on each of the windings may be varied. Fig. 2 is a diagram showing the supply voltage V stepped down into components e1, e2, e3 by the armature windings A1, A2, A3 to supply motors M1, M3 divided into two groups or provided with two windings and two commutators. Fig. 4 shows a machine comprising a magnetic circuit divided into three portions, corresponding respectively to the poles P1, Q1, P2, Q2, P3, Q3, and an armature winding A provided with three pairs of brushes corresponding to the three subdivisions of the magnetic circuit. In a modification, Fig. 12, the magnetic circuit is divided into two equal parts and the armature has two windings and each commutator is provided with four brushes connected as shown in Fig. 10. A group of two machines disposed on the same axis may be utilized comprising two magnetic circuits and two armatures, each having, two distinct windings connected as shown in Fig. 15. In each of the above machines commutating poles p, q, p<1>, q<1>, p<11>, q<11>, which may be adjustable, may be provided. The field windings may be placed on the poles as shown in Fig. 12, or may be peripheral in polygonal disposition as in Fig. 13. Fig. 20 shows an exciter E driven by a continuous-current transformer having armature parts A1, A<1>2, A<11>2, A<3> (of which A<1>2, A<11>2 may be joined to form a single armature part) and connected between the points 10, 14 of the supply circuit and two switches arranged so that the motors M1, M3 may be regenerative during braking &c. According to the Specification as open to inspection under Sect. 91 (3) (a), the subdivided fluxes may be varied as shown in Fig. 22 (Cancelled), the field winding being closed and tapped to a switch S for connection to the supply, and the machine may be used as a booster for battery charging, Fig. 21 (Cancelled), the battery being divided into two equal portions b<1>, b<11>. This subject-matter does not appear in the Specification as accepted.
Patent GB-1130775-A (GB)
Title: Improvements in lens control systems
Inventor: ASKEW JOSEPH HORDON
IPC: G03B17/14
Filed: 1966-07-27
Abstract: 1,130,775. Lens control system. EVERSHED POWER-OPTICS Ltd. July 19, 1967 [July 27, 1966], No.33739/66. Heading G2J. A zoom lens control system for a cine or TV camera has a focusing control at 5 and a zoom control at 6, each operated by a separate servomotor to which it is connected by a flexible drive cable 3 and 4, the motors being mounted remotely from the lens 2 in a box unit 12. Manual controls 14, 18 for the two motors are mounted on pass bars 15, 17. Alternatively, to avoid raising the camera as in the above system, the servomotors are mounted at each side of the camera in separate units 22 and 32 on bars 23 and 33.
Patent GB-486672-A (GB)
Title: Improvements in earth leakage indicating and protective arrangements for electric plants
IPC: H02H3/347
Filed: 1936-12-08
Abstract: 486,672. Protective cut-out arrangements; indicating faults. WIDEROE, R. Dec. 8, 1936, No. 33745. [Class 38 (v)] [Also in Group XXXVI] An earth-leakage indicating and protective arrangement for single-phase and polyphase low-voltage systems, the neutral point of which is insulated or earthed over a high impedance, comprises a summation transformer with its primary coils connected in series with the protected conductors and its secondary to the indicator (neon tube or its equivalent), in combination with a condonse connected across the secondary and turned to resonance therewith at normal frequency so as to obtain increased sensitiveness, the secondaryturns being high (more than ten times that of each primary) to allow the use of a small condenser with consequent low losses, and a highpermeability iron with low losses being employed in the core of the transformer, for example, Permalloy or that known under the Registered Trade Mark "Mumstal." In Fig. 1, the secondary 2 is shunted by a condenser 4 and supplies the neon tube 3. The secondary 2 has from 10 to 20 thousand turns. In Fig. 2, the winding 7 of a polarized trip relay is placed in series with an auxiliary D.C. source 5, the voltage of which lies between the igniting and running voltage of the indicator tube 3. The difference between the latter voltages should be as large as possible, and the resistance when luminous should be as low as possible, as by using oxidecoated electrodes. Earth leakage in the line causes the tube to break down, and current flows from source 5 through the relay winding 7.
Patent GB-361587-A (GB)
Title: Improvements in or relating to hydraulic couplings or gears
IPC: F16D33/18
Filed: 1930-11-10
Abstract: 361,587. Hydraulic transmission of power. BAUER, G., 82, Mittelweg, Hamburg, Germany. Nov. 10, 1930, No. 33831. [Class 69 (ii).] The number of blades in the driving member of a hydraulic coupling of the Fottinger type e differs from that in the driven member, being for example, two more. Longer blades 32 .. 35 may be employed with shorter intervening blades 8 .. 11, an even number of long blades may be provided, and the angle between them is preferably less than 22¢‹. The members 4 .. 7, 12 .. 15, 8 .. 11, 32 .. 35, are made of wrought, rolled, or pressed material, and secured together by welding, riveting, screwing, or other means.
Patent GB-754322-A (GB)
Title: Multi-stage centrifugal compressors
IPC: F04D17/12
Filed: 1954-11-23
Abstract: 754,322. Centrifugal pumps. SULZER FRERES SOC. ANON. Nov. 23, 1954 [Nov. 23, 1953], No. 33879/54. Class 110(1) In a multi-stage centrifugal compressor of single casing design, the first stage comprises an open-sided impeller, or the first stage and at least one of the immediately succeeding stages comprise open-sided impellers, and all the subsequent stages comprise shrouded impellers. The first stage, or each of the first two or more stages comprises an unshrouded impeller 5, while the subsequent stages each comprise an impeller 10 having a shroud 11 which is strengthened by a thick rib 12. Inlet guide vanes 3 may. be omitted, in which case the inlet ends of the impeller blades 4a of the first stage are shaped to admit the fluid with-' out shock. The impellers may be of somewhat conical form.
Patent GB-758507-A (GB)
Title: Improvements in or relating to spinning nozzles for the manufacture of artificial filaments
IPC: D01D4/02
Filed: 1954-11-23
Abstract: Spinning nozzles are made of an alloy comprising 10-30 per cent iridium, 0-5 per cent other metal of the platinum group, the balance being platinum.  The other metal of the platinum group may be rhodium, e.g. 3 per cent, or palladium, e.g. 4 per cent.  The nozzles may be subjected to a heat treatment to harden the alloy.ALSO:Spinning nozzles are made of an alloy comprising 10-30 per cent iridium, 0-5 per cent other metal of the platinum group, the balance being platinum.  The other metal of the platinum group may be rhodium, e.g. 3 per cent, or palladium, e.g. 4 per cent.  The nozzles may be subjected to a heat treatment to harden the alloy.