baber/WOPTO huggingface dataset:
Patent GB-1110673-A (GB)
Title: A process for the production of polymers and copolymers
IPC: C08F4/00
Filed: 1965-04-29
Abstract: Polymerizable compounds containing a CH2= CH= group are polymerized in the presence of oxygen or air and/or peroxides, using as polymerization catalyst at least one compound of the formula <FORM:1110673/C3/1> in which A and B, which may be the same or different, represent a <FORM:1110673/C3/2> group (or a tautomeric form thereof) wherein R1, R2 and R3, which may be the same or different, represent hydrogen, optionally substituted alkyl, aryl, hydroxy, cycloalkyl, aralkyl, alkylaryl, alkoxy, aryloxy, acyloxy, amino, N-substituted amino, alkyl mercapto or aryl mercapto radicals and R4 has the same meaning as R1, R2 or R3 except that it does not represen hydrogen, with the proviso that A, B and R1 are free from aliphatic unsaturation and that two or more of the radicals R1, R2, R3 and R4 may be joined together to form a carbocyclic or heterocyclic ring or rings, but excluding b -iminobutyric acid esters and compounds of the formula <FORM:1110673/C3/3> in which R6 is a -C­N or -COOR7 group, R7 being C1-C3 alkyl, and R5 is alkyl or aryl. Th vinyl compounds may be polymerized individually or in admixture, if desired in the presence of their polymers and/or ethylenically unsaturated polyesters and/or other polymerizable monomers.  A polymerization accelerator, e.g. compounds containing ionic halogen, thiocyanates, cyanides, azides, copper compounds, a -amino- or a -hydroxy-sulphones, mercaptons or alcohols, may also be used. Polymerization may be carried out in emulsion, solution or in bulk. Vinyl compounds exemplified are acrylic esters, methacrylic esters, e.g. methyl methacrylate, acrylonitrile, styrene vinyl acetate, unsaturated polyesters and mixtures thereof.  Examples of the polymerization catalysts are open-chain and cyclic b -ketonitriles, b -ketoesters, b -cyanoesters, b -cyanoamides, 1,3-diketones and 1,3-dinitriles; a preferred form of the 1,3-diketones are compounds of the barbituric acid group.  Peroxides, which may optionally be present, include hydrogen peroxide, t.-butyl hydroperoxide, lauroyl peroxide, p,p1-dichlorodibenzoyl peroxide and t.-butyl perbenzoate. Other substances which may be present include dibutylamine hydrochloride, hydroquinone, phenethyl dibutylamine hydrochloride, as well as fillers, dyes, pigments. The polymerization process is suitable for the production of flat or corrugated sheet materials and can be used in filling, sealing, casting, coating or adhesive applications.
Patent GB-259679-A (GB)
Title: Improvements in or relating to abrading materials in the form of slabs, slips, wheels, discs, and the like
IPC: B24D18/00
Filed: 1925-07-16
Abstract: 259,679. Salerni, P. M. July 16, 1925. Compositions containing abrasive agents and indiarubber, resin, &c., are compressed into moulds while the binding-agent is in a substantially dry state, the compression not being followed by any step of drying, baking, vulcanizing, &c. which might distort the articles. The binding agent, which is preferably a thermoplastic substance such as rubber, shellac, or resin, is preferably dissolved in a solvent, the solution is then mixed with the abrasive material, and the solvent subsequently evaporated. In the case of indiarubber vulcanizing agents are added to the solution and vulcanization takes place after removal of the solvent. The abra.sive particles thus coated with binding-agent are compressed in moulds, and may afterwards be subjected to a final compressing operation in a finishing mould of true shape.
Patent GB-201546-A (GB)
Title: Improvements in dentures
IPC: A61C13/00
Filed: 1923-07-16
Abstract: 201,546. R³d, J. July 28, 1922, [Convention date]. Teeth, artificial. - A denture a is provided with a continuous groove b to receive a removable elastic insertion c making close contact with the gums or palate d so as to give improved suction. The groove may be arranged round the edges of the denture, or two grooves may be arranged, either one within the other, or so as to provide two enclosed spaces side by side. The strip c and the flexible metal strip e, Fig. 2, whereby the groove is formed in moulding a vulcanite denture, may be endless or may be cut from a length of material. The strip c is exchangeable and is formed with a bead to engage a suitably shaped part of the groove b. The metal strip e is formed with a bore f in order that the strip may be sufficiently deformed to allow of its removal from the finished denture.
Patent GB-1156921-A (GB)
Title: Diazomethine Pigments
Inventor: LENOIR MAURICE AUGUSTE JACQUES
IPC: C08K5/29
Filed: 1966-04-27
Abstract: 1,156,921. Dye intermediates; nitro and amino compounds. UGINE KUHLMANN. 27 April, 1966 [29 April, 1965; 16 July, 1965; 3 Feb., 1966], No. 18349/66. Heading C2C. [Also in Division C4] In Example 40, 4-nitrobenzoyl chloride is condensed with 5-nitro-2-aminotoluene in orthodichlorobenzene at 140‹ C. to give 41-nitro-4- benzoylamino - 3 - methyl - nitro - benzene which may be reduced to 4<SP>1</SP>-amino-4-benzoylamino-3- methylaniline with sodium disulphide.
Patent GB-476755-A (GB)
Title: Improvements relating to machines for effecting reducing operations on metal tubes or rods
IPC: B21B21/00
Filed: 1936-07-04
Abstract: 476,755. Rolling tubes. TUBE PRODUCTS, Ltd., and NORTON, A. July 4, 1936, Nos. 18629/36 and 6020/37. [Classes 83 (iii) and 83 (iv)] A tube g is reduced between the eccentric grooves of a pair of rolls a which are rolled a short distance along the tube by contact with the peripheries d, of the rotated support rollers c which are provided with non- contacting flats e which allow the rolls a to be retracted, e.g. by springs s, Fig. 6. The rolls a are freely movable to and from each other but are kept in correct peripheral relationship with each other by a spring w acting through links u on radial arms t fixed on the rolls. The support rollers c are continuously rotated by a gear o driven from gear p on the main drive shaft x. The tube is fed forward intermittently by a screw 16 rotated intermittently by a pin wheel 26 the drive being from main shaft x, gear 61, gear 20, shaft 21, pin disc 23, pin roller, geneva wheel 26, clutch 28, splined shaft 15, and gears 14 to gear 13 on the screw 16 which feeds forward the nut 32 and its attached mandrel carriage 2. To prevent grooving the tube is rotated intermittently by a tube gripping chuck 6-9, Fig. 9, rotated intermittently from the geneva pin wheel 26 during feeding forward of the tube. The finished end of the tube is also supported and rotated by another chuck 38 coupled through gearing 45, 47 and chain 53 to the first chuck 6-9. The tube rotating mechanism may be suspended by a handle 11 while the forward feed of the tube may be suspended by a handle 33 which opens the split nut 32 on the feed screw 16. When the tube is nearly all reduced the machine is stopped, the chuck 6 is released from gripping and is slid back, the end holder 17 of the mandrel rod 5 is uncoupled from the track and slid back carrying the rod 5 with it to allow a fresh tube to be inserted in the chuck 6, the rod 5 is slid into the fresh tube and its carriage 17 is reclamped, the fresh tube abutting against the old tube and pushing it through to be completely worked, the remaining old tube now being rotated intermittently by the front chuck 38 only. The mandrel rod end holder 17 is fixed to the track by a slot-engaging rack bar operated by a hand rotated pinion 58. The roll grooves are tapered from the semi-diameter size of the initial tube blank to that of the finished tube and are deeper at part of the periphery to provide clearance at a non-reducing part. Chuck.-The frictionally gripping jaws 36 of the other chuck 38 are closed on the tube by a tapered sleeve 39 yieldingly urged inwards by a spring 41 adjustable by a hand wheel 43, and allows the tube to slide through. The ring 37 coupled to the chain driven sprocket 54 rotates the chuck.
Patent GB-734940-A (GB)
Title: Improvements in luminescent materials
Inventor: RANBY PETER WHITTEN
IPC: C09K11/08
Filed: 1952-07-24
Abstract: 734,940. Luminescent materials. THORN ELECTRICAL INDUSTRIES, Ltd. July 20, 1953 [July 24, 1952], No. 18792/52. Class 39 (1). A luminescent material comprises a polyborate of one or more of calcium, strontium, barium and cadmium, activated by manganese and lead, or by manganese and bismuth, or by manganese, lead and bismuth, the material being prepared by heating an initial mixture of starting materials in which the molecular ratio of metaloxide (excluding the activators) to boric oxide lies between 1: 2 and 1 : 7 inclusive, and is preferably 1 : 4¢, and in which the activators are present as a compound or compounds thereof. The proportions of the activators present, for each gram-molecule of metal oxide (excluding the activators) in the matrix, is from 0.001 to 0.1 gram-atom inclusive of manganese, from 0.005 to 0.4 gram-atom inclusive of lead, if present, and from 0.005 to 0.7 gram-atom inclusive of bismuth, if present. The heating is effected at a temperature above about 600‹ C. but below the melting point of the luminescent material, preferably at 700‹ C. or 800‹ C., and the material is ground and re-heated preferably at the same temperature in an atmosphere of steam. The metals can be incorporated in the initial mixture as oxides, borates, hydroxides, nitrates, carbonates, oxalates, &c., and the boric oxide as such or as boric acid or an ammonium borate. The activating metals can be incorporated in the initial mixture as carbonates, halides, borates, &c. Several specific examples are described. Specifications 410,159, [Group XX], and 512,154 are referred to.
Patent GB-1036137-A (GB)
Title: The attachment of inserts and fixing devices to pieces of vitreous silica or silica glass
Inventor: EDWARDS FREDERICK JAMES
IPC: C03B11/06
Filed: 1962-05-16
Abstract: <PICT:1036137/C1/1> <PICT:1036137/C1/2> <PICT:1036137/C1/3> <PICT:1036137/C1/4> To mount a fastening device in a block of silica glass, the glass is moulded around a former, the former removed to define a cavity with the block and a fastening device cast directly in the cavity. As shown, graphite formers 5 positioned in recesses 4 in a cast iron platen 3 are secured in a silica block 1 by pressing molten silica glass 2 thereover, each former 5 then being removed as by burning with a jet of oxygen from a burner 6 to leave a cavity 7. A two-part mould 8 is then positioned over the cavity 7 and molten phosphor-bronze poured from a ladle 9 to fill the cavity 7 and mould 8.  On cooling, the fastening device is loosely held in the cavity 7, due to shrinking, and is sealed therein by injecting air-setting latex sealing composition 10 through a hole 13 drilled in the device till the cavity is filled and a fillet 12 formed around the surface of the block.  Other materials suggested for the former include material which will char on contact with molten glass to leave a carbonaceous residue to be removed by burning, a low melting point metal such as lead or tin, removable by melting. Instead of movable platens, a pair of rolls or roll and platen may be used to mould the glass.
Patent GB-943948-A (GB)
Title: A swivel bearing for tiltable and reversible windows
IPC: E05D7/08
Filed: 1962-05-16
Abstract: 943,948. Hinges. GRETSCH-UNITAS G.m.b.H. May 16, 1962 [May 16, 1961], No. 18812/62. Heading E2F. A window pivot comprises a plate 1 formed with a bearing bush or sleeve 11 and a plate 2 formed with a hollow trunnion 21 rotatable in the bush, the amount of friction between the bearing surfaces of the trunnion and the bush being relatively small, the trunnion containing a friction ring 3 which rubs against the inside of the trunnion and is axially but non-rotatably movable on a pin 12 projecting from the bush into the trunnion, and the movement of the ring being effected by a headed adjusting screw 4. The pin has a non-circular section, and the ring may have a conical peripheral surface, as shown, to mate with a complementary surface of the trunnion or may be cylindrical and mate with an inwardly directed flange on the trunnion. Recesses 41 are formed around the periphery of the head of the screw for engagement by a pin passed through a radial hole in the plate 2, so that the screw can be adjusted by turning the window.
Patent GB-472863-A (GB)
Title: Improvements in air distributor devices
IPC: F24F13/06
Filed: 1936-07-08
Abstract: 472,863. Ventilators. STEWART, F. C. July 8, 1936, No. 18902. [Class 137] An air-distributing device comprises a casing with side walls 2, end walls 3, and a short bottom wall 3, the casing being attached to a main air duct and having air outlets 6, 7 controlled by deflection plates pivoted at 10, and by curved baffle plates 8. Each of the deflector plates has a spring detent 12 engaging with holes 13 in an arcuate bar 14 so that it may be held in the desired position. In Fig. 3, two air ducts 15 are provided and three angularly adjustable plates, two of wheh 16, 17 are shown, a universally adjustable ball distributer 19 being mounted in the bottom plate 4 to direct the downwardly flowing air stream. In lieu of the operating handle 11 shown, the deflector plates may be interconnected by levers and links manually operated by a single screw and nut device.
Patent GB-1195346-A (GB)
Title: A Process for Preparing beta-Phenylethyl Alcohol of Perfume Grade
Inventor: WOOD THOMAS FULLENWIDER
IPC: C07C29/132
Filed: 1969-04-14
Abstract: 1,195,346. #-Phenylethyl alcohol. L. GIVAUDAN & CIE S.A. 14 April, 1969 [18 April, 1968], No. 18917/69. Heading C2C. #-Phenylethyl alcohol is prepared by the catalytic hydrogenation of styrene oxide in which the catalyst comprises Raney nickel and palladium. The reaction is preferably carried out at 10-140 C. and pressure of 50-500 1b./sq. inch. Small amounts of polar solvents, e.g. C 1 -C 5  alkanols, may be present in the reaction mixture and small amounts of alkaline materials may be added to suppress isomerization of styrene oxide to phenyl acetaldehyde.
Patent GB-1499546-A (GB)
Title: Indolo-quinolizidine derivatives and a process for the preparation thereof
IPC: C07D471/14
Filed: 1975-05-06
Abstract: 1499546 Indolo-quinolizidines RICHTER GEDEON VEGYESZETI GYAR RT 6 May 1975 [7 May 1974] 18951/75 Heading C2C Novel compounds of the Formula I either as racemate or optically active isomers wherein R 1  is hydrogen or acyl and R 2  is alkyl and pharmaceutically acceptable salts thereof may be prepared by reacting a compound of the Formula II with formaldehyde to yield a compound I in which R 1  is hydrogen, optionally followed by acylation of the free hydroxyl group, resolving isomers, forming salts, hydrolysing ester and forming free bases from salts. Pharmaceutical compositions of the compounds I with the usual excipients show vasodilatory activity when administered parenterally or enterally.
Patent GB-909010-A (GB)
Title: Improvements relating to protective relays for polyphase circuits
Inventor: WAINSCOT ARTHUR JOHN
IPC: H01H83/22
Filed: 1960-05-30
Abstract: 909,010. Thermal switches; protective cut-out arrangements. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 26, 1961 [May 30, 1960], No. 19069/60. Class 38 (5). A thermal overload device employs a bimetal strip 13 for each phase heated by a replaceable heater and terminal structure (Fig. 4) comprising input and output terminals 19, 20 secured to an insulating former 22 carrying the heater resistance wire 21 which has its ends crimped in slots (not shown) in the terminals 19, 20. Insulating body ports 6, 8 are secured together to hold the structures in position with their heaters in cavities 18 formed by the ports 6, 8. The bimetals 13 and ambient temperature compensating bimetal stop 24 act on differential bars 10, 11 in conventional manner to produce relative movement on overload or phase unbalance. The bars 10, 11 are respectively pivoted at 17, 16 to a lever 15 which acts on a snap-action contact arrangement (Fig. 3, not shown). The insulating former 22 may be omitted if heavy gauge wire is used for the heater.
Patent GB-516540-A (GB)
Title: Recording device
IPC: G07C3/12
Filed: 1938-06-28
Abstract: 516,540. Recording-apparatus. JONES, W. L. (Favag Fabrik Elektrischer Apparate Akt.-Ges.). June 28, 1938, No. 19092. [Class 106 (iv)] [Also in Group XXXVII] For recording the output of a number of machines a set of levers which record upon a single record strip are operated by tie rods, which are arranged in a common plane, transmitting movement from the-armatures of magnets energized by the separate machines, the magnets being disposed some on each side of the plane and the paper and the printing levers being mounted outside the space between the magnets. The magnets 6, Fig. 5, are mounted on frames 4, 5 and each magnet has a pivoted armature 8 which when operated pulls down a a corresponding rod 12 to rock a bell-crank 13 and draw to the left a latch 15 which rocks a hammer 18 against the action of a spring 20 until the latch releases the projection 17; whereupon the spring 20 causes the hammer 18 to hit an impression member 21. The record strip 26 is drawn from a supply roll 28 by a sprocket 25 driven by a motor (not shown) and passes over a plate 40 forming a backing so that the strip may be written upon. The strip finally passes outside the casing through a slot 30. Ink-ribbon mechanism. The ribbon passes from a spool 38, beneath the impression member 21 and down to a spool 34. The spool 34 is driven from the sprocket 25 by a chain. The direction of movement of the ribbon can be changed by known means. The direction of the ribbon as it passes beneath the impression members, is slightly inclined to the centre line on which the members are situated. 'Contact device. Each machine is coupled to a shaft 52, Fig. 2, extending from the casing of a contact device 50. The shaft 52 is connected through gearing, which may readily be changed, to a wheel 57 on which is eccentrically pivoted a lever 58 provided with a toothed segment 61 gearing with a pinion 63 secured to a flywheel 62. As the machine operates, the wheel 57 rotates anti-clockwise until the end of the lever 58 engages a fixed pin 67. The wheel 57 then moves relatively to the lever 58 stressing a spring 59, until the end of the lever slips over the pin 67. The spring 59 then restores the lever 58 to its normal position relative to the wheel 57, the flywheel acting as a brake on this movement. During this retraction the end of the lever 58  engages a roller 66 on a blade 65 and to close contact 65, 64 and the circuit of the corresponding recording magnet.
Patent GB-463020-A (GB)
Title: Form for a cast iron ingot mould
IPC: B22D7/06
Filed: 1936-07-10
Abstract: 463,020. Ingot moulds. WILLIAMS, W. S. July 10, 1936, No. 19125. [Class 83 (i)] To avoid damage of the internal surface at the corner of a cast ingot mould during cooling, and to reduce thermal stresses in use, the external surface of the mould is provided with two longitudinal ribs G adjacent each inner corner J preferably joined by plane surfaces K at said corners and by plane or outwardly arched surfaces H, adjacent the inner faces L. This divides the segregated metal at each corner into two pockets B, C.
Patent GB-238372-A (GB)
Title: Improvements in gramophones
IPC: G10K15/10
Filed: 1924-08-12
Abstract: 238,372. K³chenmeister, R. Aug. 12, 1924. Sound-boxes, arrangement of.-Relates to gramophones in which are provided two soundboxes coacting simultaneously with one and the same disc record. According to the invention, the sound-boxes are so arranged that there is a substantially constant time interval between similar operations of the sound-boxes, such interval lying within the limits of <1>/6 and <1>/40 of a second. As shown, the sound-boxes 7, 8 are mounted on separate tone-arms 3, 4 of unequal lengths, the pivots being so placed at 5, 6 that as the reproducing needles move along arcs represented by the dot-and-dash lines, the angular separation between the needles (measured with respect to the centre of the record) remains substantially constant. With this arrangement, and a suitably chosen distance between the needles at the starting-points, the desired result is obtained.
Patent GB-530228-A (GB)
Title: Improvements in and relating to electric converting systems
IPC: H02M7/04
Filed: 1939-07-01
Abstract: 530,228. Converting. BRITISH THOMSONHOUSTON CO., Ltd. July 1, 1939, No. 19209. Convention date, July 1, 1938. [Class 38 (ii)] In a polyphase rectifier installation in which the anodes 21 ... 32 of a multi-anode rectifier are fed through groups of transformer secondaries 13 ... 16 the star points of which are interconnected by interphase transformers 17, 18 voltage regulation at light loads is improved by exciting the latter with current of third harmonic frequency derived from open-delta tertiaries 44, 47 on a pair of transformers 40, 41 the secondaries 43, 46 of which feed the exciter anodes 33 . . . 38, the primaries being excited through a phase-shifter 39.
Patent GB-1162691-A (GB)
Title: Polyamides
Inventor: EDGAR OWEN BURCHELL
IPC: C08G69/28
Filed: 1966-05-02
Abstract: 1,162,691. Polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 May, 1967 [2 May, 1966], No. 19211/66. Addition to 1,092,845. Heading C3R. The M.W. of a polyamide is increased by continuously passing through a heated zone which is at reduced pressure or contains an inert gas, a molten mixture of a polyamide containing recurring units of formula where X is alkylene and X1 is alkylene or phenylene and a phosphonic acid of formula where n=1-3 and R<SP>1</SP> is organic. The polyamide may be nylon 66. The phosphonic acid may be added to the monomers from which the initial polyamide is formed or to the polyamide when solid or molten. It may be solved in an organic solvent which should be removed before the mixture is further polymerized. The mixture containing 0À1-2À0 mole per cent of phosphonic acid may be heated in a meltextruder to a temperature between the m.p. and decomposition point of the initial polymer. In Example 1 the polymer initially in cubic particles is heated with cyclohexyl phosphonic acid.
Patent GB-192362-A (GB)
Abstract: 192,362. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Gardner, J. E.). Jan. 27, 1922, [Convention date]. Drawings to Specification. Relays.-A relay when energized opens its normally short-circuited upper winding, so as to be sluggish in energizing, but quick in releasing.
Patent GB-613718-A (GB)
Title: Improved manufacture of optical glass
IPC: C03C3/089
Filed: 1946-06-27
Abstract: 613,718. Optical glass. CORNING GLASS WORKS. June 27, 1946, No. 19277. Convention date, Sept. 4, 1945. Drawings to Specification. [Class 56] A transparent optical glass having a refractive index (nD) of at least 1.60 and a dispersive index (V) greater than 202-100 nD and 111.4-46.6 nD contains over 20 per cent, but not over 80 per cent, of CdO and at least 2 per cent of SiO 2 . Preferred ranges are CdO 20-80 per cent weight; SiO 2  2-50; Al 2 O 3  0-30 (preferably at least 2); and B 2 O 3  0-40 (preferably 2-15). The glass may also contain PbO and BaO (not more .than about 55 per cent) and alkali metal oxides (not more than about 20 per cent). ZrO 2  may also be present in small amounts, also substances such as BeO, ZnO and TiO 2 . The Al 2 O 3  may be omitted if more than about 70 per cent of CdO is present, the B 2 O 3  may be omitted if less than about 70 per cent of CdO is present, and the Al 2 O 3  and B 2 O 3  may be omitted if substantial amounts of additional oxides such as PbO and alkali metal oxides are present. In particular examples, nD ranges from 1.6195 to 1.8883 and V from 50 to 25.