baber/WOPTO huggingface dataset:
Patent GB-426377-A (GB)
Title: Improvements in or relating to electrical rectifiers of the ionized metallic vapour type provided with anode-control grids
IPC: H02M7/15
Filed: 1934-05-15
Abstract: 426,377. Rectifying alternating current. FORGES ET ATETIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. May 15, 1934, No. 14660. Convention date, May 23, 1933. [Class 38 (ii)] In a grid-regulated metallic vapour rectifier R of the kind in which the grid voltage comprises an A.C. component derived from a phase-shifting transformer H, and a D.C. component of variable magnitude, the latter is derived from a D.C. generator E having a shunt field a and additional excitation depending upon the difference between a fixed or manually adjustable voltage and the quantity to be regulated, viz. the output voltage or current of the rectifier. In the arrangement shown in Fig. 5, compounding of the rectifier is effected by energizing a field winding c on the generator E in accordance with the output voltage of the rectifier, the winding c being in opposition to a further field winding b supplied at a constant or manually adjustable voltage from a generator S. Over- or under-compounding may be effected by causing the current in the winding b to vary with the load current of the rectifier. In a modification, Fig. 7, (not shown), the input voltage is regulated to maintain constant current at varying loads by supplying the winding c with current proportional to the output current of the rectifier. In a further arrangement, Fig. 8, comprising two rectifiers in parallel, the rectifier R1 is regulated for constant voltage as described with reference to Fig. 5, and equality of load between the two rectifiers is ensured by energizing the two opposed windings b<2>, c<2> associated with the rectifier R2 with currents respectively proportional to the load currents of the two rectifiers. This method of load sharing may also be applied to rectifiers operating in parallel with machines. In another arrangement, Fig. 9, the exciting winding b on the machine E is omitted, and the winding c is excited in accordance with the difference between a reference voltage supplied by a machine S and the quantity to be regulated which in the arrangement shown is the output voltage of the rectifier. To increase the sensitivity of this arrangement, the resistance of the circuit of the winding c may be reduced by connecting a series wound machine (coupled to the machines S, E) in series with the winding c so as to operate as a negative resistance. Specifications 386,009 and 390,235, [both in Group XXXVII], are referred to.
Patent GB-1276263-A (GB)
Title: Flameproofed organic synthetic resins
Inventor: WINGLER FRANK
IPC: C08L63/00
Filed: 1970-03-26
Abstract: 1276263 Synthetic resin compositions FARBENFABRIKEN BAYER AG 26 March 1970 [27 March 1969] 14668/70 Headings C3B C3C C3P and C3R Synthetic resin compositions contain as flameproofing agent 5-70% of a copolymer of (a) 2- 30% ethylene or propylene, or mixture of one of these with α-butylene or isobutylene, (b) 98- 20% of a halogen-containing α-olefin, (c) 0- 40% of an OH-containing monomer and (d) 0- 50% of a halogen-containing telogen, the copolymer having a halogen content of 40-80% and a molecular weight of 300-3000. Copolymers, which are oily or greasy, prepared are ethylene/vinylidene chloride, ethylene/vinyl chloride also with hydroxymethyl norbornene, methyl vinyl carbinol, alkyl hydroxypropanol, hydroxypropyl methacrylate, carbon tetrachloride or carbon tetrabromide propylene/vinyl chloride/carbon tetrachloride and ethylene/vinyl bromide/bromoform. In examples they are added to (1) low-pressure polyethylene, (2) vinyl chloride/ethylene copolymer,(3) polyvinyl chloride, (4) polystyrene with antimony trioxide, (5) polyester from butylene glycol, maleic anhydride and phthalic anhydride with styrene and antimony oxide hardened with benzoyl peroxide, (6) diglycidyl ether of bisphenol A hardened with methylhexahydrophthalic anhydride and dimethylbenzylamine, (7) diglycidyl ester of hexahydrophthalic acid with the same hardeners as (6), (8) a styrene suspension, polymerization in the presence of polystyrene, the product being swollen in pentane and expanded in a mould with steam, (11) diphenylmethane diisocyanate, which is then converted into a polyurethane foam with sucrose polyether, N,N-di-#-hydroxyethylamino methyl phosphonic acid diethyl ester, trichlorofluoromethane silicone stabilizer and N- methyl - N - ethyl - dimethylamino piperazine (12)-(17) similar polyurethane foams.
Patent GB-281951-A (GB)
Title: Device for taking out, cooling and replacing mandrels in pilger mills
IPC: B21B25/06
Filed: 1927-06-01
Abstract: 281,951. Schloemann Akt.-Ges. March 21, 1927, [Convention date]. Rolling-mandrels.-In a pilger-rolling mill for tubes, the mandrel b may be removed from its holder by means of a hydraulically-operated support c which transfers the mandrel to a pivoted frame d down which it rolls to a position b<2> where it is cooled below the critical temperature. The support e of the pivoted frame is then lowered, and the mandrel is thus transferred to a water tank f through which it is moved by a motordriven wheel g and finally passes to a position b<5> on an uppper table i. As soon as a hot mandrel has been removed, the support c is raised to receive from the table i one of the cold mandrels which is thereupon secured in the holder.
Patent GB-612036-A (GB)
Title: Improvements relating to means or devices for sowing seeds
IPC: A01C7/02
Filed: 1946-05-16
Abstract: 612,036. Seed distributers. SMALL, L. R. May 16, 1946, No. 14760. [Class 18] A hand seed sowing appliance comprises a boxlike body 8 with a spout 8b in its side wall and a rotatable cover 9 having a depending flange 9c with scalloped portion 9d whereby the size of the outlet 8a, through which seeds pass from the box to the spout, can be varied according to the size of the seeds. The cover 9 is held to the body, and clamped thereto in adjusted position, by a metal or plastic screw 10 engaging a ferrule 11 and its rotational movement may be limited by projections 8k on the inside of the box wall. The box and the lid may be moulded from plastic material or formed by casting or stamping from metal or alloy. The ferrule 11 may be dispensed with and the screw 10 inserted in the projection 8e.
Patent GB-1434887-A (GB)
Title: Work feeder for double disc grinders
IPC: B65G47/06
Filed: 1974-04-03
Abstract: 1434887 Feeding roller type workpieces to a disc grinder BENDIX CORP 3 April 1974 [3 April 1973] 14819/74 Heading B3D The feeding of roller type workpieces through a double disc grinder having two opposing grinding discs 64 with a space between through which the roller workpieces are fed to machine their end faces is effected by feeding apparatus 70 which comprises a pair of guide bars 50, 52 which extend through the space between the grinding discs in a direction across the faces thereof, a rotatable feed roll 38, spaced from the grinding discs 64, a partially circular guide member 40 the circular surface of which is concentric with the axis of the roll 38 and is radially spaced from the peripheral surface of the roll to provide an arcuate passage along which the roller workpieces are fed by the feed roller into the channel between the guide bars 50, 52. The feed action of the roll 38 is provided by a resilient peripheral rim 74 on the roll which is deformed when in contact with the workpieces as they pass along the surface 44 of guide 40, the rotation of the roll 38 fractionally moving the workpieces to the guides between the guide bars. Workpiece stripping members 54, 56 are provided adjacent the guide bars to ensure their travel from the roll into the guide bars. Screw adjustment 96, 106 is provided to pivot the feed roll 38 parallel to its axis to adjust the peripheral gap between guide 40 and the feed roll to accommodate roller workpieces of different diameters screw and slide adjustment 94, 122, 118 is also provided to effect axial adjustment of the feed roll 38 to effect alignment relative to roller workpieces of different lengths. The guide bars, stripper plates and side plates &c. are also adjustable by screw and bolt means to adjust the various plates to accommodate workpieces of different sizes.
Patent GB-381133-A (GB)
Title: Improvements relating to the manufacture of cement
IPC: C04B7/40
Filed: 1932-05-25
Abstract: A process for preparing nodules of raw cement consists in mixing at least one of the raw materials with an organic liquid and then adding water applied either directly or mixed with the other ingredient. The water drives off the organic liquid almost entirely.  The organic liquid is such that it does not react chemically with the raw materials, is insoluble in water, and has a specific gravity different from that of water, e.g. crude oil, paraffin oil, or benzol.  All the raw materials may be mixed with the organic liquid and water subsequently added, or one of the ingredients may be made into a slurry with the organic liquid and the other with water, the two slurries being then mixed.  In an example, clay and lime are ground together with an organic liquid and then while the material is being stirred, water is added as a spray so that nodules are formed and the organic liquid is expelled.  The material is then extruded by a press into a continuous length which is cut up into suitable nodules.  These may be dried by the waste gases from the kiln.  In another example, the clay is ground wet with all the water required in the finished nodules and the lime is ground with organic liquid. The two slurries are then mixed, with the result that the water expels the organic liquid almost entirely, and nodules are formed. The material is then extruded as in the first example.
Patent GB-311663-A (GB)
Title: Improvements in re-heating apparatus
IPC: F23L9/00
Filed: 1929-05-13
Abstract: 311,663. Buschmann, M. May 11, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Firebridges.-A furnace firebridge is constituted by a chamber C of refractory material through which air, supplied at E, passes upwardly along a helical or sinuous path, the air thus heated being delivered over the grate G through apertures O<1> and upwardly through opening O<2>. As shown the chamber C is formed with a longitudinal partition M and the helical air passage is formed by a succession of metal plates P', P<2> -- P<n>, P<n+1>, - -. In the case, however, of a small bridge, the partition M is omitted and baffles are provided to cause the air to travel upwardly along a sinuous path.
Patent GB-1422004-A (GB)
Title: Top-access cabinet
IPC: A47B63/00
Filed: 1973-03-28
Abstract: 1422004 Top-access cabinet; counterbalancing ING C OLIVETTI & C SpA 28 March 1973 [6 April 1972] 14943/73 Headings B8P and B8B [Also in Division E2] A top-access cabinet includes a bail 24 which has a cross-piece 26 pivotally connected to a lid 15 and two arms 24<SP>1</SP> pivotally connected to opposed side walls (12), Fig. 3 (not shown), of the cabinet, and a spring 28 tensioned between a partition 20 and a bail arm 24<SP>1</SP> for counterbalancing the lid 15 in all positions between its fully open and closed positions shown in the Figure. Plastics front and rear support pads 32, 39 for the lid 15 are fixed at the upper corners of the cabinet and the rear pads 32 include slots 37 and projections 34 for locating the lid in its closed position. The top peripheral edge of the cabinet includes a groove for mounting suspended files. The cabinet is mounted on castors and an open fronted compartment 22 may be provided below the partition 20.
Patent GB-1452005-A (GB)
Title: Soldering irons
IPC: B23K3/03
Filed: 1974-04-04
Abstract: 1452005 Soldering PLESSEY CO Ltd 4 April 1975 [4 April 1974] 14959/74 Heading B3R A soldering iron comprises a holder 3 for a soldering bit 1, and a movable wire pinning structure 5 mounted on the holder whereby a wire 12 may be held or pinned against a terminal 13 or other member to which the wire is to be soldered by positioning the end 11 of the structure on the wire whilst tilting the iron with the wire still held by the end of the structure so that the bit is moved into contact with the wire as solder is applied to the wire. As described, the soldering iron is electric and the bit 1 fits into the holder 3 having a knurled part 4 screwed on to a threaded boss. The structure 5 is mounted on a pivot 6 on a clamp 7 secured to the holder, a spring 8 urging the structure so that the bit is accommodative in a channel 9. An arm 10 of the structure has an end 11 formed with a recess for pinning the wire 12 against the terminal, the iron then being tilted to engage the bit with the wire and terminal. A lever 14 provides means for moving the structure against the spring for cleaning purposes.
Patent GB-112755-A (GB)
Title: Improvements relating to Furnace Grates.
Inventor: WATSON GEORGE
IPC: B64D27/02
Filed: 1917-10-16
Abstract: 112,755. Watson, G. Oct. 16, 1917. Fuel-supports.-An accessory to furnace grates to facilitate the burning of wet material in destructor furnaces consists of a hollow pedestal b which rests on a grate bar d and is held in place by means of a dowel pin c fitting loosely therein. The pedestal supports by means of fins b<1> either a fire-clay block a, Fig. 1, or a metal, such as cast iron, cup a, Fig. 2. In either case, the top is hollowed or cupped so as to retain the material and evaporate some of the moisture therein, while air passes upwards through the spaces e f in the grate bar and the pedestal respectively, and through spaces g into the burning fuel.
Patent GB-1101283-A (GB)
Title: Process for production of anhydrous dextrose
Inventor: OPILA ROBERT LEON
IPC: B01D9/00
Filed: 1965-04-08
Abstract: Substantially anhydrous dextrose (containing at least 40% anhydrous b -dextrose, dissolving readily in water and being stable against loss of b -dextrose content) is prepared by spraying a dextrose liquor (containing at least 90% dextrose and 88-98% dry substance) maintained at 105-150 DEG  C., on to a seed bed (consisting essentially of dextrose) maintained at 10-40 DEG  C., continuously mixing the liquor and seed bed until substantially complete crystallization of the dextrose in the liquor occurs, discharging the resultant crystallized material from the mixing zone at 30-60 DEG  C. into a stream of air, maintained at 5-35 DEG  C. and having a relative humidity below 60%, and simultaneously cooling the crystallized product to 10-40 DEG  C. and evaporating the residual moisture therefrom by means of the heat of crystallization of the dextrose and sensible heat of said liquor. Sensible heat is defined as the heat evolved as the liquor cools. It is preferred to use a seed bed composed of anhydrous dextrose crystals.  Total hydrolysate liquors resulting from enzymatic hydrolysis of starch may provide the dextrose liquor.  The process is illustrated by reference to flow sheets and drawings of apparatus (not shown).  Reference has been directed by the Comptroller to Specification 843,787.
Patent GB-559792-A (GB)
Title: Improvements in fluid flow control cocks
IPC: F16K11/056
Filed: 1942-10-26
Abstract: 559,792. Valves. PHILLIPS & POWIS AIRCRAFT. Ltd., and WILD, R. O. Oct. 26, 1942, No, 15031. [Class 135] A multiple-way cock. particuiarty adapted for controlling the flow of liquid fuel from two tanks to one or more engines comprises a cylindrical body 10 into which are screwed four pipe connections 34, 38. Two of these connections, connected to the fuel tanks, are provided with resilient seating ferrules 42. A plug member 14 formed on a spindle 16 passing through a stuffing box 22 is formed with a transverse bore 44 housing a loose ball valve member 50. A spring 46 housed in the bore bears on a follower 48 to urge the ball into contact with the seat or inner surface of the body. The plug rests on a single ball bearing 52 and a ring of ball bearings 58 is arranged between the upper surface of the plug and the under surface of a detachable closure plug 18. The casing is preferably made of transparent synthetic resin. The casing may have more than four pipe connections and the plug may carry two balls.
Patent GB-934262-A (GB)
Title: Improvements in or relating to trailer caravans
IPC: B60P3/32
Filed: 1960-04-29
Abstract: 934,262. Convertible vehicles. R. NAGETUSCH. April 29, 1960, No. 15067/60. Class 108(1). A caravan is provided with a raisable roof portion 1 arranged over the central gangway and the horizontally divided door 12<SP>1</SP>, 12 has its lower portion provided with a part 11 which fits into a cut-out portion 10 of the floor 9.
Patent GB-573113-A (GB)
Title: Improvements in or relating to the manufacture of alloys
IPC: B22F3/14
Filed: 1942-10-27
Abstract: 573,113. Alloys. JOHNSON & CO. (LONDON), Ltd., and BANO, E. A. Oct. 27, 1942, No. 15090. [Class 82 (i)] Two or more metals are brought into diffusion and /or solid solution, or their miscibility is increased by subjecting the intimately mixed powdered metals to the influence of heat and superatmospheric pressure simultaneously, the resulting alloys being allowed to cool under the superatmospheric pressure. Fine tungsten powder mixed with 5-30 per cent of silver is subjected to a temperature of 750-900‹ C. and a pressure of 5-15 tons per square inch for 10-20 minutes and then allowed to cool while the pressure is maintained. The resulting alloy is suitable for electrical contacts. Copper may be dissolved in aluminium, and silver in copper, in higher proportions than is possible under atmospheric pressure. Brasses having conspicuous resistance to chemical corrosion may be produced. Reference has been directed by the Comptroller to Specification 544,476.
Patent GB-394478-A (GB)
Title: Process of and apparatus for reducing grains of cereals
IPC: B02C9/00
Filed: 1932-05-27
Abstract: 394,478. Reducing grain. ZATHURECZKY, E., Celovce, Post Upor, Czecho- Slovakia. May 27, 1932, No. 15133. Convention date, June 5, 1931. [Class 58.] Cereals are reduced by feeding the grains into radial guides on a rotating member near to the axis of rotation and centrifuging them at high velocity on to impact surfaces. As shown, a rotating disc 2 is provided with ribs or vanes 3 by which cereals entering by a funnel 4 are thrown onto impact surfaces 5 surrounding the disc. The impact surfaces may be fixed and inclined so that the cereal strikes the surface in a normal direction. The impact surfaces may be adjustable in inclination, the surfaces being pivoted and interconnected by links which are operated simultaneously. A hood may be used to cover the ribs on the disc or tubes may be used instead of vanes. An additional impulse may be applied to the cereal by compressed air. The impact surfaces may be ribbed or made hollow for receiving cooling water.
Patent GB-1021935-A (GB)
Title: Thermally stable insulating resin
IPC: H01B3/42
Filed: 1963-04-17
Abstract: The invention comprises polymers of formula <FORM:1021935/C3/1> where y is an alkyl group of 1 to 4 carbon atoms and n is from 1 to 9.  The polymers are obtained from monomers of formula <FORM:1021935/C3/2> where x has an average value of from 0.8 to 3. The monomers are reacted at 90 DEG  to 140 DEG  C. in the presence of a catalyst which is (1) silica, diatomaceous earth or bentonite, in the presence of hydrochloric acid; (2) organic soluble metal chelates, e.g. ferric acetyl acetonate, in the presence of hydrochloric acid; or (3) p-toluene sulphonic acid.  The polymers may be cured by heat alone or by heat and pressure, and may be used to insulate electrical conductors and to form laminates.  Examples are given.ALSO:The invention comprises compounds of formula <FORM:1021935/C2/1> where y is an alkyl group of 1 to 4 carbon atoms and n is from 1 to 9.  The compounds are obtained by contacting compounds of formula <FORM:1021935/C2/2> where x has an average value of from 0.8 to 3, at 90 DEG  to 140 DEG  C. with a catalyst which is (1) silica, diatomaceous earth or bentonite, in the presence of hydrochloric acid; (2) organic soluble metal chelates, e.g. ferric acetyl acetonate, in the presence of hydrochloric acid; or (3) p-toluene sulphonic acid. Examples are given.
Patent GB-220917-A (GB)
Title: Improvements in or relating to coats and like garments
IPC: A41D3/04
Filed: 1924-06-25
Abstract: 220,917. Epps, H. June 25, 1924. Coats; waterproof garments; collars, coat and like.-A windproof coat having a central front opening closed by buttons a is provided with an overlying, outer, preferably one piece front b which is secured at one side of the coat front by stitching along the side and shoulder seams and also by a seam c adjacent to the buttons a. The free flap b<1> of the outer front b is adapted to overlap the other side of the coat and to be secured by press buttons, &c. d' adjacent to the shoulder seam e, round the front of the arm hole and from beneath the arm along the side seam f to the bottom of the coat. The coat is preferably supplied with storm cuffs g and an upstanding collar h having a buttonover flap i secured along the upper edge of the flap b<1>.
Patent GB-1211504-A (GB)
Title: Improvements in or relating to christmas tree supports
IPC: A47G33/12
Filed: 1969-03-24
Abstract: 1,211,504. Flower vases; flower stands. JASBA - KERAMIKFABRIKEN JAKOB SCHWADERLAPP K.G. 24 March, 1969 [25 March, 1968], No. 15324/69. Headings A4H and A4U. In a support for a Christmas tree, a ring holder 3 receiving the stem has radial arms 4 each having a bulge 5 for sliding engagement with grooves 2, 2<SP>1</SP> in the inner surface of the side wall 1<SP>11</SP> of a water container 1, the arms being connected to a centering member 6 which has a spike 10 on which the stem is impaled. The part 2<SP>1</SP> of each groove has a sloping edge which on rotation of the holder forces the member 6 downwards to seat on the base 1<SP>1</SP>. In modifications, the grooves are helical and may start at a point spaced from the upper edge of the container, resilient radial arms being compressed for engagement therewith, or the centering member is formed by the pointed ends of the arms or as a spiked plate, separate from the ring and nesting on the base 1<SP>1</SP>, or secured thereto by adhesive. Clamping screws pass through the ring to grip the stem.
Patent GB-582485-A (GB)
Title: Improvements in or relating to velocity modulated electron discharge devices
IPC: H01J25/12
Filed: 1941-11-28
Abstract: 582,485. Yelocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Nov. 28,1941, No. 15345. [Class 39 (i)] [Also in Group XXII] In a velocity modulated discharge tube, the resonator body 7, Fig. 1, is attached to a resilient plate 41, Fig. 4, of insulating or conducting material, which is fixed to support rods 28 and which bears on the vitreous &c. envelope 1, the centre of gravity of the resonator, gun and supports is in the plate 41. A mica disc 34 with slots 38, Fig. 3, to provide long insulation paths is carried by the rods to centre the electron gun 5, the rods being fixed to the stem 2 by bands 29 ; a lead 32 attached to a wire 33 forms the bias supply for the resonator through the rods 28. Electromagnetic focusing means may be used for the electron stream. The resonator may be initially tuned by adjustment of the rod 48 carried eccentrically in a rotatable bush 49. The conical molybdenum anode 25 is formed with cooling fins 44 and is attached to a heavy plate 47. The resonator and anode may be coated with colloidal graphite to increase heat radiation. The resonator is formed of a copper cylinder 11 with holes 53 used in assembling the three inner walls 12, 13, 14 ; these walls are cooled in liquid air and then placed within the cylinder, their expansion fixing them in position. The resonator is then heat treated in a vacuum or in a reducing or neutral atmosphere. The walls at their edges are concave as shown at 52 to give line contact. The wall 13 is of approximate triangular form to provide coupling passages between the two resonator chambers.