baber/WOPTO huggingface dataset:
Patent GB-299300-A (GB)
Title: Improvements in or relating to processes for the recovery of volatilisable metals from iron-containing materials
IPC: C22B19/38
Filed: 1928-08-20
Abstract: 299,300. Krupp Grusonwerk Akt.- Ges., F. Oct. 22, 1927, [Convention date]. Roasting; treating ores to remove undesired constituents.-In method of recovering zinc or other volatilizable metals from iron-containing materials such as waste pyrites, particularly according to the process described in Specification 225,842, the material is mixed with excess, not less than 45 per cent, of fuel and treated in a rotary furnace, thereby avoiding deposits of iron in the furnace. The zinc &c. is volatilized, and the fuel remaining in the, residue is separated by sifting, magnetic separation, or other known process.
Patent GB-971136-A (GB)
Title: Bis-(hydroxyalkylaminophenyl) methanes and polyurethane plastics prepared from them
IPC: C08G18/65
Filed: 1962-06-21
Abstract: The invention comprises compounds of the general formula <FORM:0971136/C1/1> wherein R is alkyl, cycloalkyl or aralkyl and R1 is H or alkyl. Such compounds are prepared by reacting an alkylene oxide such as ethylene or propylene oxide with a secondary bis (4-amino-phenyl)-methane, e.g. the compound in which R=CH3 and R1=H is obtained by reacting at 140 DEG C. 2 mols ethylene oxide with 1 mol of molten bis (4-methylaminophenyl)-methane. Specifications 860,857, 876,451 and U.S.A. Specification 1,922,459 are referred to.ALSO:A storable, stable hydroxyl terminated intermediate, used for the preparation of non-porous elastomeric polyurethanes by reaction with formaldehyde or sulphur, is made by reacting an organic compound containing active hydrogen atoms which are reactive with -NCO groups and having a molecular weight of at least 800 (e.g. hydroxyl polyesters, polyhydric polyalkylene ethers, polyhydric polythioethers or polyacetals) with an organic diisocyanate and an hydroxyalkylated aromatic amine of formula <FORM:0971136/C3/1> wherein R is alkyl, cycloalkyl or aralkyl and R1 is H or alkyl; the total number of hydroxyl groups in the amine and the compound containing active hydrogen atoms being in stoichiometric excess over the -NCO groups in the isocyanate. Instead of formaldehyde a formaldehyde generator such as dimethylolurea, 2-methyltetramine, N-methylolurethane, paraformaldehyde, hemiacetals of ethylene glycol and diethylene glycol, hexamethylolmelamine or their methylol ethers may be used. Acid catalysts such as inorganic or organic acids or compounds splitting off acids, acid salts, zinc chloride or complex salts of zinc chloride. When vulcanisation with sulphur is effected 2-mercapto benzthiazole, 2-mercapto benzthiazyl disulphide or the zinc chloride complex thereof may be present. Specifications 860,857, 876,451 and U.S.A.  Specification 1,922,459 are referred to.
Patent GB-1125079-A (GB)
Title: Method and apparatus for lapping cylindrical bores
Inventor: CROSS ROLAND CLAUDE
IPC: B24D5/00
Filed: 1967-05-24
Abstract: 1,125,079. Grinding; making laps. CROSS MFG. CO., (1938) Ltd. 13 June, 1967 [24 May, 1967], No. 24067/67. Headings B3A and B3D. A lap for lapping a cylindrical bore, such as an engine cylinder of aluminium or other soft metal, comprises a hard resilient metal tube 1 having substantially coaxial inner and outer surfaces, an open split 2a extending from end to end of the tube and, adjacent at least one boundary 3, 4 of the split, formations 5 engageable internally of the tube by a driving member for rotating the tube. The tube may be made of east iron and after machining to the required inner and outer diameter is split and opened to increase its diameter and is thereafter treated to impart resiliency to the tube so that when inserted in a cylinder bore to be lapped, its outer surface is pressed against the bore. An abrasive powder mixed with oil, grease, water or paraffin is applied to the outer surface of the lap which is then rotated by a driving shaft having projections to engage the formations 5, which are formed as apertures, adjacent one or other of the boundaries 3, 4 of the slit 2a.
Patent GB-1443304-A (GB)
Title: Preparation of alcohols
IPC: B01J23/00
Filed: 1974-05-30
Abstract: 1443304 α,#-Unsaturated alcohols SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 28 May 1975 [30 May 1974] 24069/74 Heading C2C An allene of formula R 1 -CH=C=CH-R 2  is hydrated to form an α,#-unsaturated alcohol with water in the presence of a water-miscible organic solvent and a mercuric salt as catalyst, in the absence of added mineral acid. The solvent may be a ketone, e.g. acetone. The mercuric salt is preferably the nitrate, sulphate or trifluoroacetate; the acetate is also exemplified. 50-100‹ C. is a suitable temperature range, gaseous oxygen is preferably absent, and a polymerization inhibitor, e.g. hydroquinone may be present. The allenes exemplified are cyclopentadeca - 1,2 - diene, cyclotrideca - 1,2- diene and 2,3-hexadiene, the latter giving a mixture of hex-2-en-4-ol and hex-3-en-2-ol as product.
Patent GB-1114475-A (GB)
Title: Continuous production of polyester
IPC: C08G63/78
Filed: 1966-05-31
Abstract: Polyethylene terephthalate is prepared continuosly by (a) reacting ethylene glycol with dimethylterephthalate i.p.o. an ester interchange catalyst and withdrawing methanol, in a reactor wherein the reactants pass at atmospheric pressue and at 160-250 DEG  C. over 3-8 hours sequentially from the first to the last of a plurality of reaction zones, the temperature oif the zones increasing from the first polycondensation reactor, at a higher temperature, of 240-270 DEG  C. and lower pressure, of 10-400 Torr, than the ester interchange reactor, wherein it is agitated for 1-4 hours and ethylene glycol is removed, (c) passing the product into a second reactor, at a higher temperature, of 260-280 DEG  C., and lower pressure, of 0.5-20 Torr, than the first, wherein the product is agitated for 1-6 hours and passed through a series of reaction zones while glycol is removed, and (d) passing the product into a third reactor, at a higher temperature, of 270-300 DEG  C., and lower pressure of 0.1-2 Torr, than the second, wherein the product is agitated for 0.5-5 hours and passed through a series of reaction zones while glycol is removed. Apparatus suitable for the stages (a), (b), (c) and (d) are described in Specifications 1,015,474, 1,114,476 and 1,114,477 respectively. The conditions in these apparatus are (a) temperature rising from 160 to 200-250 DEG  C. overall and atmospheric pressure, (b) temperature 240-270 DEG  C., pressure 10-400 Torr, (c) temperature 260-280 DEG  C., pressure 0.5-10 Torr, and (d) temperature 270-300 DEG  C. and pressure 0.1-2 Torr.  The ratios of glycol to terephthalate used are 1.5-2.2:1, and the residence times are (a) 4-6 hrs, (b) 1-4 hrs, (c) 2-6 hrs, (d) 0.5-3 hrs.  A polycondensation catalyst may be added at the final stage of (a) or in (b).  Suitable catalysts are zinc acetate e.g. 0.056 wt. per cent of the dimethyl terephthalate for transesterification, Sb2O3 e.g. 0.04%, for polycondensation, and an alkyl- or alkylaryl-phosphite e.g. 0.1-0.15%, as transesterification inhibitor.
Patent GB-221651-A (GB)
Title: An improved channelling and grooving tool for use in the manufacture of footwear
IPC: A43D43/02
Filed: 1923-09-28
Abstract: 221,651. Livingstone, W. S. Sept. 28, 1923. Grooving by removing material.-A tool for grooving and channelling boot soles cuts a channel 11 and removes a strip 12, equal to the thickness of t h e thread, f r o m the bottom of the channel. The tool comprises a shank 1 terminating in a lower lip with backed cutting edges 6, 6<a>, and a bevelled front 5. A hole 7 extends through the lip.
Patent GB-745523-A (GB)
Title: Improvements in or relating to travelling wave-velocity modulated valves
IPC: H01J25/38
Filed: 1952-09-26
Abstract: 745,523. Velocity-modulated tubes. M-O VALVE CO., Ltd., and NEWTON, R. H. C. Dec. 16, 1953 [Sept. 26, 1952], No. 24248/52. Class 39 (1). In a velocity modulation tube of the kind in which an amplifying stage is provided by a buncher or catcher wave-guide or other transmission line for travelling waves separated by a drift space and traversed at right angles by electrons, of a beam or beams, two or more such stages are provided each having a separate electron beam and the tube also comprises means for feeding the output signal from each stage except the last as an input signal to the next succeeding stage, i.e. the stages are connected in cascade. Preferably the input wave of each stage except the last, after interaction with the beam, is fed to the output guide of the next stage in such phase as to reinforce the wave excited therein by the beam; in this case the number of stages is preferably odd, e.g. three, so that the final output circuit is isolated from the initial input. The wave-guides are rectangular and have longitudinal slots extending for an appreciable distance along the guides and provided with grids. Any free ends of the guides are terminated non-reflectively. The input and output waves travel in the same direction, the reverse components of the output wave cancelling out provided that the phase velocities of the waves in the two guides are the same. The wave used is an H 01  mode. The output guides of the first and second stage may be continuous with the input guides of the second and third stages respectively. A device may be provided for adjusting the phase of the wave fed to the output of the second and third stages from the input of the first and second stages respectively. In a modification the input guides of the first and third stages and the output guide of the second stage may be made coaxial, and the output guides of the first and third stages and the input guide of the second stage also made coaxial and separate beams interact with the three stages, the beam of the second stage being directed oppositely to the other two beams. The wave-guides of the three stages preferably but not necessarily have the same cross-sectional dimensions. The first two stages carry low D.C. voltages but the D.C. voltage of the third stage is high for maximum power output, for example by keeping the cathodes of the different stages at different D.C. potentials. The device may be used for continuous wave or pulsed operation. For pulsed operation the input signal may be pulsed or if it is continuous the beams may be pulsed. Water cooling may be provided. A numerical example is given in which the guide slots differ in length in the different stages, and the drift space of the third stage is slightly longer than the drift spaces in the first and second stages. It is stated that the device operates satisfactorily without magnetic focusing.
Patent GB-672281-A (GB)
Title: Improvements in processes for shaping glass panes and sheets
IPC: C03B23/023
Filed: 1949-09-22
Abstract: 672,281. Tempering glass. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY & CIREY. Sept. 22, 1949 [Sept. 22, 1948], No. 24381/49. Class 56. A process for shaping a glass sheet comprises subjecting the) glass to a thermal pretreatment before heating the glass prior to shaping it. The pretreatment consists in tempering the glass to modify its viscosity. The glass is then heated rapidly and may be bent to the desired shape.
Patent GB-865974-A (GB)
Title: Manufacture of new phenyl-quinuclidines
Filed: 1957-09-19
Abstract: The invention comprises 3-phenyl-quinuclidine compounds containing either a saturated or D 2-unsaturated quinuclidine nucleus free from further substituents, and whose phenyl residue is unsubstituted or substituted by a dialkylamino group, their acid addition and quaternary ammonium salts; and the preparation thereof by treating a 3-phenyl-3-hydroxy-quinuclidine with a dehydrating agent, and, if desired, hydrogenating the D 2-quinuclidine so obtained, and, if desired, converting a base so obtained into an acid addition or quaternary ammonium salt, or converting a salt so obtained into the free base.  The products are useful as central nervous system stimulants (see Group VI).ALSO:Pharmaceutical preparations useful as central nervous system stimulants contain a 3-phenyl-quinuclidine compound having either a saturated or D 2-unsaturated quinuclidine nucleus free from further substituents, and whose phenyl residue is unsubstituted or substituted by a dialkylamino group, or an acid addition or quaternary ammonium salt thereof, in admixture with a pharmaceutical organic or inorganic carrier suitable for enteral, parenteral or topical administration.  They may be in the form of creams, dragees, emulsions, salves, solutions, suspensions or tablets; and, if desired, they may be sterilized and/or contain auxiliary substances such as emulsifying, preserving, stabilizing or wetting agents, salts for regulating asmotic pressure or buffers. Other therapeutically active substances may be incorporated. Specified salts are hydrohalides, sulphates, nitrates, phosphates, thiocyanates, perchlorates, acetates, propionates, oxalates, malonates, succinates, malates, methane-, ethane-, hydroxyethane-, benzene- and toluene-sulphonates, picrates, salts with therapeutically active acids, and quaternary ammonium salts formed by the action of alkyl halides or sulphonates or dialkyl sulphates.
Patent GB-355025-A (GB)
Title: Improvements relating to the wet doubling of textile yarns or threads
IPC: D01H13/30
Filed: 1930-08-15
Abstract: 355,025. Wet doubling frames. COWPERTHWAITE, W. and PRESTON TYRE FABRIC MANUFACTURING CO., Ltd., Croft Street Mill, Preston. Aug. 15, 1930, No. 24430. [Class 120 (ii).] In a wet doubling frame a single trough extends centrally along the frame, the threads being guided from the frame creel through the trough to delivery rollers on either side of the frame. A beam 17 extends the length of the frame and carries a pedestal 19 containing a sheet metal trough 20 with beaded edges 21. Brackets 16 secured to the beam 17 support a thread board 14 carrying thread guides 15. Yarns x, y coming from a creel pass under a rod 22 fixed in the trough and over rods 23 to delivery rollers for the doubling spindles. The path of the threads through the moistening liquid may be varied and the height of the rod in the trough may be adjustable. In place of one long trough extending the whole length of the frame several small troughs may be used each one receiving yarns from both banks of spindles.
Patent GB-1150327-A (GB)
Title: A Method and an Apparatus for forming Stacks of Sawn or Planes Timber.
IPC: B07C5/14
Filed: 1967-05-25
Abstract: 1,150,327. Stacking timber; endless conveyers. OY TAHKA A.B. 25 May, 1967 [25 May, 1966; 30 June, 1966], No. 24442/67. Headings B8A and B8C. Planks of wood, conveyed to a stacking station, are deposited laterally from the conveyer on to a stack by first allowing one end of the plank to drop, and then the other end. The conveyers which carry the planks diverge in the direction of travel to facilitate the stacking of different lengths at separate locations. In one form described, planks 3, Fig. 4, are conveyed by divergent chain conveyers 1, 2 along supports 6, 5 respectively. Upon reaching the stacking position a wedge (9), Fig. 5 (not shown) pushes the end of the plank from the support 6, which end falls on to an inclined stack 10. A driven roller 11 assists in removing the other end from the support 5. In another embodiment Figs. 7, 8 (not shown), the support 6 is provided, at intervals, with trap doors (15) each corresponding to a stacking position for a given length. In operation a first trap door opens to deposit the shorter lengths on to a stack, the longer planks engaging a lever on support 5 to prevent opening of the door. In a modification Figs. 9-11 (not shown), as the conveyers diverge planks slide from the support (5) on to a lower support (17), parallel with support (6), and travel thereon until reaching the driven roller (11) whereupon the trap door (15) in support (6), opens, to deposit the end of the plank. The upper surface of the pile may be kept at a constant distance from the trap doors. The conveyers may continually diverge linearly or may diverge step-wise.
Patent GB-959520-A (GB)
Title: Improvements in methods of producing semi-conductor devices
IPC: H01L23/495
Filed: 1962-06-26
Abstract: 959,520. Semi-conductor devices. SIEMENS & HALSKE A.G. June 26, 1962 [June 28, 1961], No. 24449/62. Heading H1K. In the manufacture of semi-conductor devices a long semi-conductor body is fixed to the prongs of a comb-like carrier body, on each prong at a position intermediate its length, and has at least one electrode adjacent each prong, a separate wire being bonded between the free end of each prong and an associated electrode after which the prongs are severed from the common portion of the carrier and the semi-conductor body is cut between the prongs to produce a plurality of devices in each of which said free end of the prong is severed to isolate the associated electrode from the electrode formed by the part of the prong which is attached to the semi-conductor. The semiconductor body may initially be of P, N or I type or may comprise two or more different layers in planes parallel to the length of the body. It is provided with alloyed or diffused electrodes either after or during formation of PN, NI, PI, NN+ or PP+ junctions but before it is soldered or alloyed to the prongs of the carrier which is preferably made of a material having a coefficient of expansion similar to that of the semi-conductor. Suitable materials include nickel, tungsten, and an iron/cobalt/ nickel alloy. The prongs may be coated with a material or the carrier itself may be of a material such that on alloying to the semiconductor the conductivity type of the underlying region is changed or enhanced. The connecting wires may be thermo-compression bonded to the electrodes and prongs in which case the press tool is usefully constructed so that several electrodes in a row or all the points on the carrier to which contact is to be made can be joined simultaneously to connecting wire. Individual devices made by the above method may be diodes or transistors, the embodiment particularly described producing mesa transistors. In this embodiment the semi-conductor strip 2, which may be made for example of germanium, silicon, silicon carbide, or an A<SP>III</SP>B<SP>v</SP> compound, is formed with a central raised portion 33 provided with pairs of emitter and base electrodes 3, 4 to 13, 14 and is mounted on a carrier plate of which each of the prongs 27-32 is split down part of its length into two portions 36, 37-46, 47. Pairs of emitter and base electrodes are wired to their respective pairs of half prongs. The carrier plate is now cut along XX and the semi-conductor body cut between each complete prong. Referring now to Fig. 3, a severed prong is bent through 90 degrees from the line of part 49 at a point opposite corner 62 and the three ends (one full width and the others the free ends of the half prongs) are secured to leads 50, 60, 60 passing through a header (one lead 60 is observed in the view shown in Fig. 3). Ratios 35<SP>1</SP>, 35<SP>11</SP> of the prong are cut through to separate the half prongs from the butt of the prong, thereby mutually isolating the three electrodes. The transistor may then be capped and hermetically sealed.
Patent GB-1421757-A (GB)
Title: Hide pulling devices
IPC: A22B5/16
Filed: 1972-05-24
Abstract: 1421757 Skinning meat carcases JOHNSON BROS MFG LTD 21 June 1973 [24 May 1972] 24553/72 Heading A2U A device 36, for holding down the front legs of an animal carcase suspended by its hind legs from a conveyor 16 whilst the hide is gripped at its head end and pulled off by a device 20, comprises a base 47, a ramp 38 mounted on said base, a carriage 39 mounted on said ramp for movement up and down the incline, hydraulic means for moving said carriage up and down said ramp and means 43 on said carriage for detachably securing the front legs of said carcase thereto. In the embodiment shown, the device 36 is mounted on rails so that it may follow the moving carcase. The hide is pulled off by circulating endless chain 22 driven by motor 29. The device 20 is inclined (Fig. 2-not shown) to facilitate removal of the hide whilst the carcase is still moving.
Patent GB-632566-A (GB)
Title: Improvements relating to heating of soil and the like and means therefor
IPC: A01G9/26
Filed: 1944-12-08
Abstract: 632,566. Electric soil heating. BERRY, A. F. Dec. 8, 1944, Nos. 24610/44 and 17707/45. [Class 39(iii)] Spiral tubes 3, 3a of glass or enamelled metal containing resistance elements for local heating of plant roots, are fed with low voltage from a mains transformer. Heating elements may be replaced by larger elements as the plant grows without disturbance to the plant. Heat control is obtained by means of a tapped primary 1a in the mains transformer. Various arrangements for heating plants in pots and frames are described. Specification 572,681 is referred to.
Patent GB-1476116-A (GB)
Title: Triazole derivatives and processes for the production thereof
IPC: C07D249/08
Filed: 1975-06-09
Abstract: 1476116 Triazole derivatives CIBA-GEIGY AG 9 June 1975 [14 June 1974] 24616/75 Heading C2C Novel compounds of Formula I wherein R 1  is H, C 1-7  alkyl, hydroxymethyl optionally etherified or esterified, formyl, carboxy optionally functionally modified, or aminomethyl optionally mono or disubstituted; B 2  is C 1-7  alkyl and R 3  is H or C 1-2  alkyl or NH 2 R 3  is a saturated monoheterocyclic ring and rings A and B may be substituted by halogen, CF 3 , NO 2 , C 1-7  alkyl or C 1-7  alkoxy and salts thereof are prepared by one of the following methods: (a) a reactive ester of a compound of Formula II is reacted with HNR 2 R 3  or an alkali metal derivative thereof; (b) a compound of Formula IV is reacted with formaldehyde or formic acid; (c) a compound of Formula V is oxidized; (d) a compound of Formula VI wherein R 6  is C 1-7  alkyl is treated with a base and optional conversion to a salt or a substituent group is converted to a derivative thereof by standard procedures. Reaction esters (mainly halides) of compounds of Formula II above are prepared by halogenation and optional conversion of functional groups to their derivatives. Intermediates of Formula V are prepared by NaBH 4  reduction of the ketones optionally followed by conversion of functional group to their derivatives. [2 - (Dimethylamino) - acetamido] - [2 - (ochlorobenzoyl) - 4 - chlorophenylazo] - malonic acid diethyl ester is prepared by reacting 2- amino - 2<SP>1</SP>,5 - dichlorobenzophenone which has been diazotized with [2-(dimethylamino)acetamido]-malonic acid diethyl ester. Pharmaceutical compositions in conventional forms for oral, rectal or parenteral administration and having anticonvulsant activity comprise an above novel compound and a carrier or diluent.
Patent GB-205091-A (GB)
Title: Improvements in and relating to the manufacture of sheet rubber compounds
IPC: B29C37/00
Filed: 1923-10-03
Abstract: 205,091. Stedman, J. H. Oct. 4, 1922, [Convention date]. India-rubber sheets; variegating.-India-rubber sheets suitable for floor or wall coverings &c. are made by compounding several batches of different colours, each batch having mixed with it finely comminuted cotton or like fibre, which addition prevents the colours from blending into a blurred mass. Scraps of textile fabric, e.g. friction scrap from the manufacture of tyres, are compounded with rubber raw, or reclaimed, or both, colour and fillers, and the mix is roughly sheeted. The sheets are passed several times through a refining mill whereby the fabric is shredded and distributed throughout the mass, and the sheet is reduced to the thickness of paper. Differently coloured batches thus prepared are blended in a warming mill, whence the batch is led to a calender to form sheets which are vulcanized as usual.