baber/WOPTO huggingface dataset:
Patent GB-593765-A (GB)
Title: Self propelled dump wagon
IPC: B60P1/14
Filed: 1945-06-11
Abstract: 593,765. Tipping-vehicles. LETOURNEAU, Inc., R. G. June 11, 1945, No. 14758. Convention date, July 17, 1944. [Class 108 (i)] A dump wagon comprises a two-wheel tractor articulated to a wheeled frame supporting a rearend discharge body which is actuated by a pivoted mast carrying a block and tackle unit which is operated by a winch on the tractor. The frame consists of side members 2, preferably of triangular section, joined by cross-members 3. The draft yoke consists of upwardly conveying forwardly inclined legs 8 connected to members 9 which are bridged by a member 24 against which the mast 21 rests in its inoperative position. The mast comprises, two upwardly converging posts 22 pivoted to the foremost of the cross-beams 3, the upper sheaves 26 of the lifting means being mounted at the upper ends of the posts. The lower sheaves 27 are mounted in a support 28 on the dump body. When the body is fully raised, the housing of the upper sheaves lies under a cross-beam 32 on the body, so that the beam would rest on the housing if the cable 29 should break in this position. The dump body has a rounded bottom 17 and an upwardly inclined rear end 18 which permits a steeper dumping position than could be otherwise possible. The vehicle is steered by selective driving of the front wheels 13.
Patent GB-1007702-A (GB)
Title: Rotary drying drum
Inventor: HUBER HERBERT
IPC: F26B11/02
Filed: 1962-04-17
Abstract: 1,007,702. Seals. BUTTNER-WERKE A.G. April 17, 1962, No. 14826/62. Heading F2B. [Also in Division F4] In a seal between a rotary drying drum and a drier furnace, the gap between the drum and furnace is surrounded by a stationary annular duct with which an annular air suction channel is in uninterrupted communication, which channel extends in a radial direction with respect to the rotary axis of the drum. The gap 3 between a rotary drying drum 1 and furnace 2 is sealed by an annular, stationary duct  thereabout and a suction channel 5 opening thereinto which extends in a radial direction relative to the rotary axis of the drum. An annular disc 6 is mounted on the drum shell and forms with the wall of the channel 5 a labyrinth seal. The channel 5 narrows in width towards the duct 4 in the form of a nozzle and is extended by a cylinder 7 surrounding and spaced from the drum, one end of which has a casing 8 slidable in the axial direction for use as an air inlet. A suction pipe 9 leads from the duct 4 to a fan 10 and has a valve 11.
Patent GB-985022-A (GB)
Title: Improvements in or relating to the continuous heat treatment of elongate metal material
Inventor: SHAKESPEARE ALAN GOUGH
IPC: H05B6/02
Filed: 1960-04-28
Abstract: <PICT:0985022/C6-C7/1> In a continuous process for heat-treating steel strip or wire, the strip is passed through a liquid heat transfer medium contained in two baths 1, 2, Fig. 3, over guide rolls 4, 5 and 6; the strip 3 is heated to a maximum temperature between the two baths, and the heat transfer medium is circulated in counter-current to the moving strip in the second bath, from which the hot medium flows into the first bath, preheating the incoming strip.  Heating is effected by electrical induction through a transformer 11, the secondary circuit of which is preferably the heat transfer medium consisting of a liquid metal, which is circulated by a pump through pipes 7, 8.  The bath 1 is at 350  DEG C. and on emerging into the short path over insulated guide roll 5, the temperature of the strip rises to 700  DEG C. due to its high resistance in relation to the metal bath.  The strip is then quenched by liquid metal flowing in counter-current to it. The top guide roll 5 is surrounded by a casing containing an inert atmosphere.  Suitable bath metals are lead, lead/antimony or lead/bismuth alloys or a molten barium salt.  Baffles 35 enhance the counter-current cooling effect and maintain a uniform temperature gradient; the liquid metal in pipe 7 is at 600  DEG C. and in pipe 8 at 200  DEG C.  Pipe 7 may be in convoluted form. The strip may be mild or alloy steel, tin plate, or aluminium-coated steel.
Patent GB-1057617-A (GB)
Title: Improvements in or relating to bowling alleys
IPC: A63D5/08
Filed: 1965-04-08
Abstract: 1,057,617. Bowling alleys. J. CLAESSENS. April 8, 1965 [April 8, 1964], No: 14970/65. Heading A6D. The pin distributor of a ten pin bowling alley comprises a main ramp 4 receiving pins base-first from the pin elevator 1, together with eight auxiliary ramps (not shown) extending transversely from the main ramp and each leading to a recess in the pinsetter mechanism of the alley. Each auxiliary ramp comprises a pivoted lever extending into the main ramp and serving to divert a pin into the said auxiliary ramp, the pin, as it travels down the auxiliary ramp, pivoting the lever away from the main ramp to allow the following pin to enter the second auxiliary ramp, and so on. Thus eight pins are seated in recesses in the pinsetter and the levers are held away from the main ramp until the pins are released from the pinsetter. The ninth pin slides the full length of the main ramp 4 to pivot the part 6 thereof and enter the recess 19. Tilting of the part 6 uncovers an opening 49 provided in the main ramp, allowing the tenth pin to enter the recess 20 in the pinsetter.
Patent GB-301859-A (GB)
Title: Improvements in the solvent treatment of copper silicate ores
IPC: C22B15/00
Filed: 1928-05-22
Abstract: 301,859. Anglo American Corporation of South Africa, Ltd. Dec. 7, 1927, [Convention date]. Ammonium compounds containing metals. - Copper is extracted from ores and materials in which it occurs as silicate by means of an ammoniacal solvent, particularly a solution of ammonium carbonate. The process consists in mechanically reducing the raw materials to a fine state of division (200 mesh or tiner) and treating it directly with the solvent, to extract the copper. For example the ore is ground with water to a slime pulp containing about 90 per cent of minus 200 mesh, the pulp is then filtered in a press and dewatered by forcing air through the press until the moisture content is less than 20 per cent. While the cake remains in the filter, the solvent is forced through it, effecting the dissolution of the copper under pressure, and usually resulting in increased extraction. It. also keeps the solvent solution enclosed, thereby preventing loss of ammonia. When the dissolution is complete, a wash is passed through the cake which is then treated with steam to recover the residual ammonia. The copper is recovered from the ammoniacal solution by suitable means. Specification 294,868 is referred to.
Patent GB-1423866-A (GB)
Title: Achogenerators
IPC: H02K21/14
Filed: 1973-03-29
Abstract: 1423866 Tachogenerators ROBERT BOSCH GmbH 29 March 1973 [30 March 1972] 15062/73 Heading H2A In a tachogenerator arrangement, a meander shape (Fig. 2) printed circuit winding 12 on a disc 10 on a shaft 16 is rotated relative to a ring-shaped multi-pole magnet 14 on a stator yoke part 13 whereby to produce at two terminals 17, 18 a voltage indicative of the revolution rate of shaft 16. The winding may be produced by etching copper laminated hardboard, or by depositing films on a substrate, and it may be in two parts, one on each side of disc 10. In the embodiment of Fig. 3 (not shown), a cylinder (19) with a series of magnets around its periphery is rotated on the inside of a similar shaped stator casing body (20) bearing a meander winding (21) on its inner surface.
Patent GB-1534194-A (GB)
Title: Lifting device
IPC: E02F3/40
Filed: 1977-03-31
Abstract: 1534194 Tined structures A F SIMS and CSIMS 31 March 1977 [13 April 1976] 15079/76 Heading B8H A lifting device for use in lifting stacks of bricks comprises a load carrier having a loading platform comprised of parallel platform members 1 which are connected by means of vertical bars 2, 5 to an upper superstructure which comprises a pair of parallel rectangular hollow sections 6 along which a slider assembly comprising plates 14, 15 is slidable, the slider assembly being connected by a pair of chains 16 to a pair of excavator bucket clamps 18 (only one shown) which in use are attached to the bucket. When no load is engaged by the members 1 the load carrier is balanced by sliding the slider assembly 14, 15 against a stop 8, and when the load carrier is loaded the slider assembly is moved up against an end plate 7 to balance the load carrier so that the loading platform will be horizontal.
Patent GB-1254478-A (GB)
Title: Process for production of matt glazes consisting of pure silicic acid annhydride
Inventor: DOUBRAVA HEDWIG
IPC: C04B41/50
Filed: 1969-03-21
Abstract: 1,254,478. Glazing cement articles. H. DOUBRAVA, and L. DOUBRAVA. 21 March, 1969 [7 June, 1968], No. 15101/69. Heading C1M.  Matt glazes consisting of pure silicic acid anhydride are produced on the surface of an article containing or consisting of cement by forming a coating of one or more layers of alkali metal silicate on the surface, each layer being formed by contacting the surface with an alkali metal silicate solution, removing surplus solution and drying; and heating the coating to above 100‹ C. (e.g. to 150-200‹ C. by superheated steam) to set the alkali metal silicate, and cause condensation of the silicic acid, linkage of Si valencies through bridging oxygen atoms, densification of the resulting silicic acid anhydride and separation of the alkali. The alkali may be removed, e.g., by washing. The heating to above 100‹ C. may also be by infra-red heating, or using steam under pressure. The article may be immersed in an alkali metal silicate solution or the solution may be applied by spraying.
Patent GB-876515-A (GB)
Title: Improvements in or relating to the polymerisation of formaldehyde
IPC: C08G2/00
Filed: 1960-04-29
Abstract: High molecular weight polyoxymethylenes are produced by contacting substantially anhydrous formaldehyde in an inert organic solvent with a catalytic amount of an N-methylol, N-methylol ether or N-methylol thioether derivative of an organic nitrogen compound, the entire reaction being carried out under substantially anhydrous conditions. Catalytic agents specified in the examples are N-methylol phthalimide and succinimide, N, N1-dimethylol urea dimethyl ether, epsilon caprolactam-N-methylol methyl ether, ethyl carbamate N-methylol methyl ether, acetamide N-methylol methyl ether, N, N1-dimethylol thiourea diethyl ether and didodecyl thioether, melamine hexamethylol methyl ether, and the butyl ethers of a dicyandiamide-formaldehyde condensation product, a guanidine-formaldehyde condensation product, a dicyandiamideformaldehydeacetaldehyde condensation product and a urea-adipic acid dihydrazidehydrazocarbonamide-formaldehyde condensation product.  Lists of other suitable catalytic compounds and classes of such compounds are provided.  Suitable inert solvents are ethers, esters, aliphatic, cycloaliphatic and aromatic hydrocarbons and chlorinated hydrocarbons.  The formaldehyde monomer may be added gradually to the reaction mixture as polymerization proceeds.  The Specification refers to condensation products obtained from formaldehyde with a mixture of at least two members of the group consisting of urea, thiourea, guanidine or hydrazodicarbonamide, or other nitrogen-containing compound capable of forming methylol derivatives.  In an Example (13), the condensation is described of formaldehyde with a mixture of urea, adipic acid dihydrazide and hydrazodicarbonamide, by heating the reactants in an aqueous suspension of barium hydroxide.  The product obtained is etherified with butanol.
Patent GB-1407001-A (GB)
Title: Epoxy resins
IPC: C08G59/14
Filed: 1972-07-30
Abstract: 1407001 Epoxy resin containing acetoacetate groups HOECHST AG 30 July 1972 [30 July 1971] 15157/72 Heading C3B An epoxy resin (E) contains #1 acetoacetic ester group and #1 other ester group R.COO-, where R.CO- is the acyl residue of a C 2-22  saturated or unsaturated fatty acid or an aromatic carboxylic acid. At least some of the acetoacetic ester groups in (E) may be modified by reaction with (a) HCHO and an amine to form a Mannich base, (b) with an aldehyde to form alkylol groups, or (c) with an amine to form #-amino-crotonate ester groups. Resin (E) may be made by reacting free OH groups in an epoxy resin, partially esterified with RCOOH, with diketene in the presence of a catalyst, e.g. a metal salt of a mono- or polycarboxylic acid. The reaction may be performed at, e.g. 40-120‹ C., the resin being liquid or molten or dissolved or dispersed in an inert solvent. The diketene may be used in such proportions as completely or only partially to esterify the free OH groups, e.g. 1 molecule diketene to 2 OH groups, or excess diketene may be used, so that some of the epoxy groups also react. Before the reaction with diketene, the partially-esterified epoxy resin may be reacted with an OH-group containing compound, e.g. a phenol, to increase the OH-group content of the resin. Resin (E) may be hardened with conventional hardening agents, many being listed, including polyaminoamide resins. The epoxy groups of (E) may be esterified with C 2-22  fatty acids or reacted with secondary amines. Uses.-Lacquers, paints, primers, impregnating agents, moulding materials, road marking. Specification 1,407,003 is referred to.
Patent GB-1464793-A (GB)
Title: Cephem derivatives and a method for the preparation thereof
IPC: C07D501/26
Filed: 1974-04-05
Abstract: 1464793 Cephalosporin derivatives MEIJI SEIKA KAISHA Ltd 5 April 1974 [16 April 1973 12 May 1973 29 Nov 1973 (4) 28 Dec 1973 (4)] 15163/74 Heading C2C Novel compounds I  (R<SP>1</SP> is aryloxy, aralkoxy, 1-4C alkoxy, 1-4C alkoxy-1-4C alkoxy, or halo; R<SP>2</SP> and R<SP>3</SP> are H, halo, methyl or halomethyl; Q is acet oxy, azido or -SY; Y is a heterocyclic group and n is 1 or 2) are prepared by (1) reacting cephalosporin C with to give I where Q is acetoxy; (2) reacting a compound I in which Q is acetoxy with a nucleophilic reagent R<SP>4</SP>H where R<SP>4</SP> is an azido group or SY to give the corresponding compound I where Q is azido or SY. The compounds I may be reacted with a carboxy-protecting reagent in the presence of an acid-binding agent to give the corresponding protected derivatives. These may then be reacted with an iminohalogenating agent to produce the corresponding imindhalide derivatives. There are then reacted with an alcohol to give the iminoether derivatives. On hydrolysis there iminoether derivatives give the corresponding 7-amino-cephem derivatives. Prior to hydrolysis the iminoether derivatives may be acylated; after hydrolysis this gives the 7- acylamino-cephem derivatives.
Patent GB-291032-A (GB)
IPC: H01M4/16
Filed: 1928-05-23
Abstract: 291,032. I. G. Farbenindustrie Akt.- Ges. May 24, 1927, [Convention date]. Electrodes for storage batteries are made from lead alloy supported in lead grids by subjecting the grids to electrolysis in an acid solution to remove the alloying metal. A sulphuric acid solution of specific gravity 1.1 and a current density of 1.2 amps. per sq. decimetre of electrode surface may be used. After the alloying metal has been removed fresh electrolyte may be used and the forming process continued
Patent GB-960254-A (GB)
Title: Improvements in or relating to kitchen cabinets
IPC: A47B77/02
Filed: 1961-04-27
Abstract: 960,254. Kitchen cabinets. G. K. FINDLAY. July 11, 1962 [April 27, 1961], No. 15274/61. Headings A4B and A4H. A kitchen cabinet comprises a wooden frame divided by partitions into a number of compartments 2 to 6 of equal dimensions and spaced from the wall 7 by projections at the rear to allow the passage of water or gas pipes &c. Compartments 2, 3, and 6 house a set of drawers 10, a cooker 11, and a refrigerator 12 respectively. A sink occupies the upper part of compartment 5, the lower part and compartment 4 being cupboards which may house a washing machine and spin drier. The top sections 14 have a continuous front edge trimming 17 and junction components, each of plastic or metal. The size of the front opening of compartment 6 may be varied by fitting removable frames in place. Specifications 960,255 and 960,256 are referred to.
Patent GB-1172663-A (GB)
Title: Apparatus for Welding a Circular Joint Between a Tube and a Tube Plate.
IPC: B23K9/028
Filed: 1968-03-29
Abstract: 1,172,663. Welding by fusion. ESAB Ltd. 29 March, 1968 [31 March, 1967; 7 July, 1967], No. 15274/68. Heading B3R. [Also in Division H2] Apparatus for welding a circular joint between a tube and a tube plate comprises a centring member 17 at the extremity of a rottable shaft 18, 7, the centring member being adapted to engage the work in such a way that the axis of rotation of the welding head 9, e.g. a TIG welding head, is aligned with the axis of the tube to be welded, the centring member being normally biased by a spring 39 to an inoperative position in which it is withdrawn from the work, but displaceable to engage the work by operation of a pivoted lever 24 coupled to the shaft 18, 7, in a direction towards the handle 3 against the action of spring 39. The welding head, which may be supplied with argon shielding gas, is mounted adjacent a recess in the lower end of the shaft 7 (Fig. 5, not shown), whereby the radius of the circular joint may be varied by moving the head into or out of the recess. The head rotates with the shaft which is driven by a motor 26 through gearing 27. In its inoperative position with the centring member withdrawn from the work, the lever 24 closes a switch M whereby an electromagnet 2 is energized to clamp the apparatus to the work. Operation.-The apparatus is correctly located for welding by engaging the centring member with the tube end by moving the lever 24 towards the handle 3. Push-button K is then depressed and energization of relay contact a2 establishes a feed circuit for the electromagnet 2. Also, a solenoid valve 33 is energized to supply shielding gas to the welding head. When handle 24 is released again (after pushing button K), an ignition relay I operates to connect the welding head to the welding voltage generator G, e.g. a D.C. device, and to connect an H.F. current source H to the primary of a transformer 34. As soon as the arc starts the H.F. source is automatically disconnected and a timing relay T is energized. Also the motor 26 is energized to rotate the shaft 18, 7. After one revolution of the welding head a relay F operates to reduce the excitation of the generator and after a delay the welding current is reduced again. Then the alternative energizing circuit (using switch M) for the electromagnet is restored and the ignition relay I de-energized to extinguish the arc. The supply of gas is cut off. The unit is moved to the next weld location by de-energizing the electromagnet by moving the lever 24 towards the handle 3. If the tube plate is, e.g. non- magnetic stainless steel, then a magnetic support plate which may be as disclosed in Specification 1,172,197 is fixed over the tube plate for welding.
Patent GB-758089-A (GB)
Title: Improvements in or relating to process for preparing crystalline magnesia and resulting product
IPC: C04B2/00
Filed: 1953-06-03
Abstract: Periclase is formed by mixing a finely divided magnesium compound which will yield periclase on firing with a liquid dispersion of an iron compound to provide up to 1.0 per cent by weight of additional Fe2O3 in the fired product, and firing the mixture, preferably at 1300 to 1800 DEG C., for not over one hour to form periclase, a chromium compound may also be added to provide up to a total of 1.0 per cent of added Fe2O3 plus Cr2O3 in the fired product, the preferred amounts being 1/16 per cent each of Fe2O3 and Cr2O3.  The initial magnesium compound preferably contains less than 1 per cent Fe2O3, not over 2 per cent of CaO and not over 2 per cent of SiO2. Suitable magnesium compounds are the hydroxide, carbonate, boric carbonate or alcoholate, high parity magnesite or brucite, finely divided hydrated magnesia, precipitated hydroxide, carbonate or boric carbonate, or cryptocrystalline magnesia.  The latter may be prepared by firing magnesium hydroxide, carbonate or boric carbonate to not over 1200 DEG C. for 45 minutes.  The magnesium compound should be of less than 149 microns diameter.  The iron compound, which may be added as a solution or dispersion, preferably colloidal, may be ferric or ferrous chlorides, sulphates or nitrate, sodium or potassium ferro and ferri-cyanides, iron acetate or hydroxide or waste pickle liquor.  Water is the preferred dispersion medium.  The compound providing Cr2O3 may be finely divided metal, sodium, potassium or ammonium chromate or dichromate, alkaline earth chromates or dichromates, or chromium nitrate, chloride, acetate, sulphate or oxide according to example: (1) A magnesium hydroxide sludge obtained by treating sea water with dolomite and washing the precipitate is mixed with ferric chloride solution, dried, briquetted and fired at 1700 to 1800 DEG C. for 20 to 30 minutes.  The porosity of the product is 6 per cent. (2) To the filter cake obtained by filtering magnesium hydroxide sludge (from dolomite precipitation of sea water) is added water, chromic acid and ferric chloride, and the dried mixture is briquetted and fired at 1705 DEG C. for half an hour to obtain a periclase having a porosity of 5.72 per cent.  A two-stage firing may be employed, the first being at below 1300 DEG C., preferably below 1200 DEG C. and after comminuting and pressing the second stage heating of at least 1300 DEG C and preferably 1500 to 1750 DEG C. is applied.  If cryptocrystalline magnesia is formed in the first stage, the iron and chromium constituents may be added before the second stage heating.  Up to 90 per cent of finely divided well crystallized periclase may be added to the crytocrystalline magnesia before firing.  Specifications 698,797 and 711,908 are referred to.
Patent GB-654222-A (GB)
Title: Improvements in radio transmitting and receiving arrangements
IPC: G01S1/02
Filed: 1941-09-10
Abstract: 654,222. Directive radio systems. STEVENS, A. H. (Leland Stanford Junior University, Board of Trustees of). Sept. 10, 1941, No. 15330/43. Divided out of 654,221. Drawings to Specification. [Class 40 (vii)] In combined transmitting and receiving means for use particularly in a radiolocation system, a transmitting reflector is smaller than, and is mounted in front of, a receiving reflector, the transmitting reflector serving to screen the receiving means from the transmitter. The invention is described with reference to an arrangement identical with one described in Specification 654,221.
Patent GB-378125-A (GB)
Title: Process for the preparation of mica condensers
IPC: H01G4/30
Filed: 1931-05-26
Abstract: 378,125. Condensers. DUBILIER CONDENSER CO. (1925), Ltd., Ducon Works, Victoria Road, North Acton, London. -(Assignees of Dubilier, W. ; 10, East 40th Street, New York, U.S.A.) May 26, 1931, No. 15396. Convention date, May 27, 1930. Drawings to Specification. [Class 38 (ii).] A number of mica-dielectric fixed condensers are made at one time by assembling strips of mica and foil and subsequently subdividing the assembly. The foils may be provided with slots along which the subdivisions are made, and the assembly may be clamped along each edge by strips which after cutting remain in position on the small condensers thus made.