baber/WOPTO huggingface dataset:
Patent GB-358721-A (GB)
Title: Process for the reduction of organic compounds
IPC: C07B31/00
Filed: 1930-10-08
Abstract: In the reduction of organic compounds with alkali metals and lower alcohols, the reaction mixture is kept under excess pressure of hydrogen.  The hydrogen pressure may be produced by using excess of alkali metal or by forcing hydrogen into the reaction vessel.  The alkali metal may be employed in a finely divided state e.g. as a dispersion in xylene.  An example is given of the reduction of pyridine to piperidine, the theoretical quantity of sodium and excess of absolute alcohol being used, while hydrogen is forced into the reaction vessel to give a pressure of 20 atmospheres at 130 DEG  C. The following processes are also referred to: the production of ethyl benzene from phenyl methyl carbinol, phenylethyl alcohol from enolphenylacetaldehyde, methylphenylcarbinol from acetophenone, tetramethyldiaminobenzhydrol from tetramethyldiaminobenzophenone, benzyltoluene from phenyl tolyl ketone, 1.4 pentanediole from valerolactone, hexadecylamine from palmitonitrile, 1.4 dihydro-a -methylnaphthalene from a -naphthoic acid ethyl ester, secondary butyl benzene from dimethylstyrol, ar - tetrahydro - b  - naphthol from a -naphthol, ar-tetrahydro-a -naphthol and ac-tetrahydro-b -naphthol from a -naphthol, ar-tetrahydro-b -naphthylamine from a -naphthylamine, ar-tetrahydro - a  - naphthylamine and ac - tetrahydro - b -naphthylamine from b -naphthylamine, hexahydrobenzoic acid from benzoic acid, tetrahydroquinoline from quinoline, pyrazoline from pyrazole, aminoundecane from nonylmethyl-ketoxime and ethylamine from acetamide.
Patent GB-991550-A (GB)
Title: Process for the manufacture of stable aqueous dispersions of copolymers of vinyl esters of organic acids and ethylene
IPC: C08F2/24
Filed: 1961-08-21
Abstract: Stable aqueous dispersions of copolymers of ethylene and vinyl esters are prepared by a process wherein a reaction vessel is charged with water, a peroxy compound, a surface-active agent and, if necessary, a protective colloid, and ethylene is introduced into the reaction vessel at a pressure of 10 to 100 atmospheres gauge, and a vinyl ester is added at a rate which is proportional to its consumption, at an elevated temperature while maintaining the ethylene pressure. Specified vinyl esters are vinyl acetate, propionate, butyrate and benzoate.  Other monomers, e.g. acrylic, crotonic, maleic and fumaric acids and esters, and vinyl halides, may also be present.  Specified peroxy compounds are potassium and ammonium persulphates. Specified protective colloids are polyvinyl alcohol and water-soluble cellulose derivatives. The dispersions may be used in paints and adhesives. Examples describe the copolymerization of ethylene with (1 to 4) vinyl acetate and (5) vinyl acetate and vinyl propionate in aqueous dispersion in the presence of ammonium persulphate, sodium hydrocarbon sulphonate, sodium dihydrogen phosphate, optionally together with (4) a mixed iso-octyl/polyglycol ester of maleic acid. Specifications 582,093 and 645,088 are referred to.
Patent GB-833091-A (GB)
Title: Improved machine for separating articles from a bulk supply and inserting them into workpieces
IPC: C14B5/00
Filed: 1957-09-26
Abstract: 833,091. Feeding articles. ALBEKO SCHUHMASCHINEN A. G. Sept. 26, 1957 [June 27, 1957], No. 30173/57. Class 117 [Also in Group VII] Rotating rings 9, 10, Fig. 2, disposed in a hopper or container 7 holding a bulk supply of marking pins, have depressions 14, Fig. 9, on their inner curved surfaces into which the marking pins drop with downwardly directed points. The marking pins are carried in the depression 14 past a leaf spring 8, Fig. 1, which removes any marking pins which are incorrectly located in the depressions, and over a guide shoe 2 which guides the marking pins from the ring 9 into a channel 11, Fig. 2, and from the ring 10 into a channel 12, the marking pins being pushed along the channels 11, 12 by the following marking pins fed thereto, until the first marking pins in the channels 11, 12 are located between side jaws 35, 41, Fig. 3, respectively, associated with setting pins 32, 39 operable to drive the marking pins into opposite sides of a cardboard workpiece M. The setting pins 32, 39 are moved axially together to drive the marking pins into the workpiece by rotating eccentrics 26, 27, respectively, the eccentric 26 acting through a linkage 28, 30. A single-revolution clutch connects the eccentrics 26, 27 with a driving shaft 25 and has an operating member 51 which is actuated through a vertical bar 50 by movement of a lever 46 when the workpiece M is forced upwardly against an index point at the end of the lever 46. The index point serves to locate the workpiece in the correct position. A pair of needles 38 are provided which engage the workpiece to prevent it from slipping. As the member 28 is moved upwardly by the eccentric 26, it carries a push member 53 against a pin 49 on the lever 46 to retract the lever 46 so that the index point thereon is clear of the position into which the marking pins are to be inserted. The driving mechanism of the rings 9, 10 includes a shaft carrying a coupling 5, Fig. 9, which drives gear wheels 22 (and 23, not shown) engaging the rings 9, 10, the driving connection between the coupling 5 and gear wheels 22, 23 being comprised by spring-pressed balls 21 carried by the coupling and engaging grooves 24 in the gear wheels 22, 23. When the supply channels 11, 12 are filled with marking pins the spring- pressed balls yield and permit rotation of the coupling 5 whilst the gear wheels 22, 23 remain stationary.
Patent GB-847978-A (GB)
Title: Cladding aluminium with lead
IPC: G21F1/08
Filed: 1958-09-22
Abstract: In a process of bonding aluminium sheets on plates to lead the aluminium surface to be bonded is first plated with a nickel coating, preferably a coating of 8-12% phosphorus and 92-88% nickel by immersion in a hot solution of sodium hypophosphite and a buffered solution of nickel chloride, followed by a coating of a tin-lead alloy, preferably a 59% Sn/41% Pb eutectic alloy by hot dipping and finally hot pressing the tinned aluminium and lead sheets together at 400 DEG F.  The lead is preferably tinned with the eutectic alloy by hand wiping using an oxyhydrogen torch and may be reheated to 400 DEG F. prior to the bonding operation.  The bonded product is cooled by water sprays while still under pressure. U.S.A. Specifications 2,658,839, 2,658,841, 2,658,842, 2,694,017, 2,694,019, 2,717,218, 2,762,723 and 2,766,138 are referred to.
Patent GB-427947-A (GB)
Title: Improvements in wearing pieces for reinforced rubber horse shoes
IPC: A01L5/00
Filed: 1934-10-23
Abstract: 427,947. Horseshoes. THORNTON, A. A., 7, Essex Street, Strand, London.- (Harsem, 0.; 10, Uranienborgveien, Oslo, Norway) Oct. 23, 1934, No. 30357. [Class 67] Wearing-plates 3 for reinforced rubber shoes are of U-shape in cross-section and, to secure the plate to the shoe, the limbs of the plate are provided with tongues which are distorted to engage the shoe or its reinforcement. As shown one limb 6 is slit to form tongues 10 which may be bent and hammered into the shoe. The other limb 5 is slit at its edges and the tongues 11 thus formed are bent to enter the rubber. In modifications portions of the limbs may be bent over to enter notches in the upper edges of the reinforcing plate.
Patent GB-430788-A (GB)
Title: Improvements in and relating to prismatic boxes with lids
IPC: B65D5/64
Filed: 1934-10-23
Abstract: 430,788. Cardboard boxes. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Kunstanstalt Etzold & Kiessling Akt.-Ges. ; Crimmitschau, Saxony, Germany) Oct. 23, 1934, No. 30379. [Class 18] A sliding lid for a cardboard box has on its underside an open channel or slit to receive a flap a formed on one or both sides of the body of the box. The lid consists of an outer part b reinforced by folding in the edges c, d and a smaller inner part e fixed by adhesive in such a way as to leave a slit or channel at each side. The part e may be spaced from the part b by turned-in flaps h, and may have projecting ribs k to locate the lid on the box. Projections m, Fig. 8, which lie in the box to limit the movement of the lid, and a tab n may also be provided.
Patent GB-970185-A (GB)
Title: Magnetic tape recorder
Inventor: ATSUMI KATSUYA
IPC: G11B15/10
Filed: 1962-08-09
Abstract: 970,185. Feeding magnetic tapes; automatic stopping. AKAI ELECTRIC CO Ltd. Aug. 9,1962, No. 30487/62. Heading G5R. A microswitch 70, operable via tape-feeler means 13 to stop the machine should the tape break, slacken or run out during recording or play-back, is shunted by a second switch 71, whose control 71a cannot be moved to the open-circuit position during fast winding by an inhibiting member 75, moved into blocking engagement therewith. Separate switches for transducing and fastwinding speeds, Fig. 9, have their operating spindles 30, 31 linked to prevent simultaneous displacement from the NEUTRAL and STOP positions respectively. An eccentric, gapped gear 18, moved into engagement with a pinion 21 on the capstan shaft 20 by the feeler 13, makes one turn, rocking lever 16 down and up and the linkage slides lever 28 to right and left to operate the switch 70, apply brakes and disengage tape pinch-roller 50 through relevant linkages.
Patent GB-836127-A (GB)
Title: Linear polyamides and a process for the production thereof
IPC: C08G69/26
Filed: 1956-10-08
Abstract: Linear polyamides are made by heating 2-methyl-piperazine or an amide-forming derivative thereof and one or more acyclic dicarboxylic acids or amide-forming derivatives thereof. Specified acids are succinic, glutaric, brassylic, adipic, pimelic, suberic, azelaic, sebacic, dodecanedioic, oxalic, diglycollic, diphenylol propane-diacetic and b -ketoglutaric acid and bis-(b -carboxyethyl) sulphide.  Preferred amideforming derivatives of the dicarboxylic acids are the esters, acid chlorides, amides or anhydrides.  The specified 2-methyl piperazine derivative is the N-formyl derivative. Viscosity stabilizers, e.g. hexadecylamine, octadecylamine and palmitic or stearic acid may be incorporated in the reaction mixture. In the examples: polyamides are made by (1) to (4), (7) to (10) forming salts from 2-methylpiperazine, and (1) sebacic acid, (2) adipic acid, (3) azelaic acid, (4) diglycollic acid, (7) azelaic and sebacic acids, (8) glutaric acid, (9) adipic and succinic acids, and (10) sebacic and succinic acids and polymerization of the resultant salts effected by heating under nitrogen; (5) 2-methyl piperazinium adipate and 2-methyl piperazinium sebacate are condensed.  The products of the invention may be used as fibres, sheets or films, or as moulding powders.
Patent GB-365077-A (GB)
Title: A coupling device for the ends of rods, tubes or the like
IPC: B61L7/02
Filed: 1930-10-14
Abstract: 365,077. Rod and tube joints. OWENS, W. J., 5, Catherine Place, Bath. Oct. 14, 1930, No. 30741. [Class 99 (i).] A rod joint comprises an overlapping portion on each rod, each portion having a projection 3a which engages in a recess 4a in the other rod, the rods being prevented from lateral separation by a sleeve 11 and a cotter 15, the end 14a of which is twisted after insertion. Hard metal sheaths 15a may be provided on the ends of the rods. Plugs similar to the ends of the rods may be used to join tubular members. Bars 18, 19, Fig. 5, abutting at 20 are joined by a bar 22 fitting in and secured. to the bar 19 and having a projection 23 which engages a slot in the bar 18. The joint is completed by a sleeve 21 and cotter 24.
Patent GB-1263538-A (GB)
Title: Machines for die casting metals of high melting points
Inventor: MIURA YASUSHI
IPC: B22D17/08
Filed: 1969-06-18
Abstract: 1,263,538. Casting machines. TOSHIBA KIKAI K.K. 18 June, 1969, No. 30771/69. Heading B3F. [Also in Division G1] A die casting machine has an injection cylinder 10 consisting of an outer cylinder 11, a sleeve 12 of a metal of high thermal conductivity, e.g. copper, and a lining consisting of a plurality of sections 13, 14, 15, 16 and 17 split in the longitudinal direction of the injection cylinder. Molten metal is poured through a hole 20 and is forced into the mould cavity 23 by the plunger 21. The injection cylinder 10 is preferably inclined at an angle with respect to the horizontal, e.g. within the range 5 to 45 degrees. The machine may be used for casting ferrous. metals using pressures between 25 and 100 kg./cm.<SP>2</SP>.
Patent GB-144201-A (GB)
Title: Machine, applicable as a pump or compressor
IPC: F04B1/22
Filed: 1919-12-09
Abstract: 144,201. Larsson, S. Dec. 9, 1919. Compound pumps; piston pumps; pump-actuating mechanism. - Relates to multi-cylinder apparatus of the wobbler type, and consists in providing a central rotating valve secured to the driving-shaft so that a single central inlet pipe and a single central delivery pipe may be used. In the pump shown in Figs. 1 to 3, the central valve 7 is secured to the driving-shaft 6 and has the wobbler keyed on its central reduced part. The cylinder ports 12, by means of slots 13, 14, communicate alternately with the corresponding suction chambers 15 and delivery chambers 18, which are connected in pairs by passages 16, 19, so that single suction and delivery pipes 17, 20 may be used. Fig. 4 shows a modification in which the chambers 15 are connected by an annular passage 16, and the chambers 18 by a tube 19. Fig. 5 shows a two-stage compressor composed of two tandem units such as are described above, in which a cooling-coil 24 connected to the jackets 21', 21<2> is employed. Fig. 6 shows another form of two-stage compressor in which the delivery ends of the valves are placed together, and the air from the first unit passes through a pipe 27 traversing the jacket 21'. Multi-stage compressors can be built of the necessary number of units arranged tandem-wise.
Patent GB-874609-A (GB)
Title: Improvements in or relating to cathode ray tube display apparatus
Inventor: WARD JOHN JOSEPH
IPC: G01R13/26
Filed: 1958-09-26
Abstract: 874,609. Cathode-ray tube operating circuits. BUSH & RANK CINTEL Ltd. Sept. 24, 1959 [Sept. 26, 1958], No. 30806/58. Drawings to Specification. Class 40(7) In an apparatus for producing selectable ranges comprising circular time-bases of different radii or straight line time-bases of different lengths the frequency of any one range is different from that of adjacent ranges so that the brilliance of the trace does not vary greatly from range to range. A first embodiment for generating a circular timebase comprises an oscillator which supplies a series of binary dividing stages, each of these stages feeding a separate sine-cosine generator. A switch selects the generator outputs and is connected to the deflection generators. It is so arranged that for the range giving the largest diameter, or the longest, time-base the frequency used is the lowest available. A second embodiment comprises a series of binary stages followed by gates which feed a combining network whose output supplies the sine-cosine generator. The input to the generator is of the same amplitude whichever frequency is selected. The amplitude of the signal from the generator is controlled by a gain control which is ganged to a means for selecting the time-base frequency by way of the gates.
Patent GB-771327-A (GB)
Title: Production of heat hardenable melamine-formaldehyde condensation products
IPC: C08G12/26
Filed: 1954-10-26
Abstract: Heat-hardenable internally plasticised resins are prepared by heating together at a pH of 8-12, melamine, formaldehyde (or a polymer thereof) and a guanamine having the general formula <FORM:0771327/IV(a)/1> wherein n is an integer of 1 to 4, R1 is a phenyl, mono- or di-halophenyl, mono- or di-alkylphenyl or haloalkylphenyl group in which the alkyl group or groups have 1 to 4 carbon atoms, or a cyano or straight chain omega-cyanoalkyl group having 1 to 4 methylene groups, and each of R2, R3, R5 and R4 is a hydrogen atom or a phenyl, cresyl, xylyl, halophenyl or dihalophenyl group or an alkyl group having one to eight carbon atoms, at least one being a hydrogen atom and not more than one being a phenyl, cresyl, xylyl, halophenyl or dihalophenyl group.  Many examples of such guanamines are given.  The amount of formaldehyde, or polymer such as paraformaldehyde or trioxymethylene, should be from 1 to 6 equivalents per mol. of melamine, and the preferred amount of guanamine is 5 to 25 mol. per cent of melamine.  The guanamine may be mixed with the other reactants before the reaction or may be added to a partially condensed melamine-formaldehyde product so long as it is allowed to condense substantially completely with the melamine and formaldehyde.  The pH may be adjusted by means of sodium or potassium hydroxide, triethanolamine, benzyl trimethylammonium hydroxide or choline.  Temperatures may vary from 40 DEG  C. to reflux temperatures at atmospheric pressure.  The resinous products, while still in the fusible state, are preferably mixed with fillers, such as glass, asbestos, paper, wood flour and cellulose, for moulding purposes, or may be dissolved in a solvent, e.g. water or wateralcohol mixtures, and used as laminating syrups. Curing is effected at temperatures of 100 DEG  to 250 DEG  C. with or without a catalyst.  The examples describe the preparation of condensates using phenylacetoguanamine, omegacyanovaleroguanamine, 4 - N - ethyl - phenyl - valeroguanamine, omega - cyanopropioguan - amine, 4 - N - ethyl - omega - cyanovalero - guanamine, 4 - N - phenyl - cyanoacetoguana - mine, 4 - N - phenyl - phenylacetoguanamine and omega - cyanononoguanamine.  Specification 642,409, [Group IV (b)], and U.S.A. Specifications 2,394,526 and 2,427,314 are referred to.
Patent GB-1436710-A (GB)
Title: Air treatment hood
IPC: B01D46/12
Filed: 1973-06-28
Abstract: 1436710 Stove hoods G BAUKNECHT GmbH ELEKTROTECHNISCHE FABRIKEN 28 June 1973 [29 June 1972] 30868/73 Heading F4V An air treatment hood for a kitchen range comprises a stationary housing, a movable frame which closes a lateral opening of the housing, an air inlet opening 24, an air outlet opening 25, a first grease filter 50 movable with the frame, a second grease filter attached to a flange (73, Fig. 3) of the housing, and an impeller (22, Fig. 1) located between the air outlet 25 and an actuated carbon filter 52. When the hood is needed to filter air, the movable frame is withdrawn partially or completely, depending upon requirements. Further, again depending on conditions, a flap 67 may be pivoted from a vertical to an inclined position, causing air to flow through the front of the frame, beneath a baffle 36<SP>1</SP>. The edges of the filters 50, 51 are bevelled to facilitate movement.
Patent GB-1221362-A (GB)
Title: Perfluoroalkylamido-alkylthio methacrylates and acrylates, and polymers thereof
IPC: C08F28/00
Filed: 1968-06-28
Abstract: 1,221,362. Polymers of fluorine-containing thio(meth)acrylates. J. R. GEIGY A.G. 28 June, 1968 [30 June, 1967 (2)], No. 31028/68. Heading C3P. [Also in Divisions B2 and C2] The invention comprises homopolymers and copolymers of compounds of the general formula wherein R f  is a perfluorinated C 2-18  alkyl radical, A is a C 2-6  alkylene radical, B is hydrogen or a C 1-4  alkyl radical and X is hydrogen or methyl. The polymerization is conducted by bulk, solution or emulsion methods in the presence of free radical-forming catalysts. The starting materials may comprise mixtures of compounds having differing values for Rf. The copolymers may be homogeneous or segmented (heterogeneous) copolymers or comprise physical blends of homopolymers, or copolymers blended with non-fluorinated homo- or copolymers. Many suitable ethylenically unsaturated comonomers are specified. The monomer mixture preferably contains a reactive acrylic monomer which permits cross-linking by heat or cross-linking agents.
Patent GB-1536049-A (GB)
Title: Auxiliary combustion chambers in internal combustion engines
IPC: F02M31/04
Filed: 1976-07-26
Abstract: 1536049 IC engine combustion chambers NISSAN MOTOR CO Ltd 26 July 1976 [24 July 1975] 31029/76 Heading F1B An I.C. engine comprises a cylindrical or spherical auxiliary combustion chamber 14 which communicates with a main combustion chamber 8 via a passage 24 located so that during the induction stroke a portion of the charge entering the combustion space via intake duct 20 is diverted into auxiliary chamber 14 by the head of the intake valve 16, a wall 20 common to chamber 14 and intake duct 10 and projecting into the latter permitting transfer of heat to the incoming charge. A sparkplug 22 in chamber 14 effects ignition which spreads via passage 24 to main chamber 8. The charge in the main chamber may instead be ignited by a spark-plug therein or in a second auxiliary chamber.
Patent GB-191559-A (GB)
Title: Improved pocket knife
IPC: B26B1/04
Filed: 1921-11-21
Abstract: 191,559. Fell, R. Nov. 21, 1921. Pocket knives. - The blade of a pocket knife is retained in the closed position, by a pin a, having its ends resting in grooves b, b<1> formed on the inside of the case or handle, and falling in such grooves to engage a slot or recess e in the haft of the blade when the knife is held vertically in the position shown and the blade pressed inwards against its spring. On releasing the. blade the spring prevents any movement of the pin. If the knife is reversed and the blade pressed inwards, the pin drops from the slot or recess e and the spring then partly opens the blade.
Patent GB-1055378-A (GB)
Title: A process for producing allergen preparations
IPC: A61K39/36
Filed: 1965-07-21
Abstract: Allergen preparations useful as vaccines or desensitizing agents for the treatment of allergies caused by pollen are prepared by cultivating a microorganism (which is specific to pollen of a species causing allergies) in a sterilized aqueous extract from the pollen species in question until the resulting suspension of microorganisms in the pollen extract has allergen activity, separating the microorganisms from the pollen extract which is collected as an allergen preparation, and optionally extracting with water the microorganisms separated off for the recovery of a further allergen preparation.  Said microorganisms are defined as those which live on the pollen grains and can be isolated therefrom.  They may be either bacteria or fungi.  In an example, the fungus Aureobasidum pullulans isolated from birch pollen is cultivated in a birch pollen extract. The culture obtained is filtered, and the residue is freeze-dried. In another example the fungus Sporobolomyces pararoseus, isolated from timothy pollen, is cultivated in a timothy pollen extract.  The culture is filtered, the filtrate is put into amoules and the residue is freeze-dried.  Aqueous extracts of the freeze-dried residue show allergen activity.  Allergen preparations may also be prepared using several different microorganisms from one and the same pollen species.  Specificed microorganisms include Cladosporium herbarum, Penicillium eyclopium, Cryptococcus laurentii, Rodotorula minuta, Cladosporium cladosporioides and Cryptococcus albidus, all being isolated from, e.g. timothy pollen.
Patent GB-430794-A (GB)
Title: Improvements in oil burners
IPC: F23D11/04
Filed: 1934-10-30
Abstract: 430,794. Rotary spray - producers. SAACKE OELFEUERUNGS-GES., C., 10, Knesebeckstrasse, Charlottenburg, Berlin. Oct. 30, 1934, No. 31127. Convention date, Dec. 2, 1933. [Class 69 (iii)] [See also Group XI] In a horizontal rotary-cup oil burner, oil is fed to the bottom of the cup a by means of a stationary nozzle having jets inclined rearwardly. As shown there is a circumferential series of apertures e supplied from a central chamber g closed at its forward end by a screw h. The jets may be replaced by a single annular aperture receiving its supply from radial holes and an axial hole in a screw similar to h.