baber/WOPTO huggingface dataset:
Patent GB-1027148-A (GB)
Title: Process for the modification of polymers or copolymers
IPC: C08F261/12
Filed: 1963-10-05
Abstract: Graft, block and cross-linked polymers are made by bringing together (a) a free-radical polymerizable ethylenically unsaturated material, (b) a preformed polymer which is soluble in or swollen by the ethylenic material or a liquid miscible therewith, and which polymer contains a CX3 group, where X represents chlorine or bromine, and (c) a metal carbonyl, under such conditions as to cause a thermal or photochemical reaction. The Examples describe: (1) forming a network structure by reaction between trichloroacetylated polyvinyl alcohol, methyl methacrylate and molybdenum hexacarbonyl; (2) as in (1) but using styrene as the ethylenic material; (3) as in (1) but using manganese pentacarbonyl as the metal carbonyl, (4) forming a gelled product by reaction between polyvinyl trichloroacetate, styrene and manganese pentacarbonyl under exposure to sunlight; (5) forming a graft polymer by reaction between polychloral, methyl methacrylate and molybdenum pentacarbonyl; and (6) forming a block polymer by reaction between a telomer of styrene and carbon tetrabromide, methyl methacrylate and molybdenum pentacarbonyl, followed by the alkaline alcoholysis of the resulting product.
Patent GB-342849-A (GB)
Title: Improvements relating to lever lids for tins
IPC: B65D43/26
Filed: 1929-12-28
Abstract: 342,849. Opening lever-lid tins. ROBINSON & CO. Ltd., F. and ROBINSON, F. G., Southcoates Lane, Hull. Dec. 28, 1929, No. 39634. [Class 125 (iii).] To facilitate the removal of the lever lid 5 of a tin 3, a lever 4 is disposed so that the end 1 lies in and conforms approximately to the shape of the recess in the neck-piece 2. Upon rotating the lever in a clockwise direction, the neck-piece acts as a fulcrum, and the end 1 bears upwards on the flange of the lid. In a form adapted for use with a lid with an extended flange, such as is described in Specification 341,691, the lever is modified to allow it to pass between the neck-piece and the flange. In the form shown in Fig. 4, the end 4 of the lever is disposed vertically down the outside of the tin, and the end 1 extends to the inner edge of the recess as shown, or to the bottom of the recess.
Patent GB-1348071-A (GB)
Title: Hydrogen peroxide synthesis
IPC: B01J23/96
Filed: 1971-08-25
Abstract: 1348071 Hydrogen peroxide DEUTSCHE GOLDUND SILBER - SCHEIDEANSTALT 25 Aug 1971 [27 Aug 1970] 39917/71 Heading C1A In the preparation of hydrogen peroxide by the anthraquinone process, the activity of the Pt group metal hydrogenation catalyst is maintained at full level by ensuring that the working solution entering the hydrogenation stage contains at least 250 mgm/litre of hydrogen peroxide. The catalyst may comprise one or more Pt group metals and may be deposited on a support material, e.g. silica containing materials, aluminium oxide or active carbon. The catalyst may be used as a fixed bed or as a suspension. The preferred catalyst contains Pd. The preferred concentration of H 2 O 2  present in the hydrogenation stage is 300 to 1000 mgm/l. of working solution. The H 2 O 2  may have been extracted after oxidation using either water or organic vapours. The desired cone. of H 2 O 2  may be maintained by operating the extraction step such that sufficient H 2 O 2  remains in the solution or by adding H 2 O 2  to the hydrogenation stage.
Patent GB-946467-A (GB)
Title: Improvements in and relating to egg cartons
IPC: B65D85/32
Filed: 1960-11-23
Abstract: 946,467. Egg cartons. PACKAGING CORPORATION OF AMERICA. Nov. 23, 1960 [March 28, 1960], No. 40244/60. Heading B8P. A separator for layers of egg cartons packed in a shipping case may be of moulded pulp or of paperboard and has a number of dished portions 20-22, Fig. 4, so that the contents of a broken egg will be confined adjacent the carton containing the broken egg. The separators have a certain resilience so that the lid 11T of a full case has to be pressed down thus holding the cartons firmly in position. If necessary, an additional sheet can be placed on the upper row of cartons to ensure that the cartons are firmly packed. When made of pulp, the thickness of the dry product may be 1/16 of an inch and the marginal portion may rise # of an inch above the upper surface of the separator. U.S.A. Specifications 2,134,860, 2,277,327, 2,556,088, 2,562,233 and 2,766,924 are referred to.
Patent GB-1356994-A (GB)
Title: Casting of fusible materials
IPC: B22D18/04
Filed: 1971-08-27
Abstract: 1356994 Apparatus for supplying melt to moulds GRAVICAST PATENT VERWERTUNGS GmbH 27 Aug 1971 [28 Aug 1970 4 Sept 1970] 40378/71 Heading B3F [Also in Divisions B5 and F4] Apparatus for supplying molten material, e.g. metal or plastics, to a mould 22 or 117 comprises first and second containers for the melt, the second container 13 and 106 being located within the first container so that melt within the first container surrounds the second container and can flow thereinto under the pressure of the head of melt. The flow of melt into the second container may be controlled by a stopper rod 114 or a sliding plate 47. After the mould has been filled, an additional pressure may be applied to the melt in the second container 106 and the mould by a piston 111 moving in a passage in the wall of the container 106. The first container may be formed by two parts 1 and 5 which are detachably connected by bolts passing through flanges and have mats or stripes 31 of kaolin wool therebetween. It is heated by induction heating means located at the ends of passageways 33 and 108 and may be provided with discharge openings (35) and (37) provided in the lower part 1 and upper part 5 respectively. These openings are normally closed. The nozzle 21 leading to the mould 22 may be vertical as shown or it may be horizontal, Fig. 8 (not shown). The latter is particularly suitable for feeding melt to a continuous casting mould. The nozzle may be made of graphite, magnesite or a sintered oxide and is readily replaceable, it being held in position by a press plate (59) bearing on the nozzle through an intermediate layer of refractory material (60), Fig. 10 (not shown). The said first container may form part of the melting furnace or it may be supplied from a ladle (44), Fig. 4 (not shown).
Patent GB-956947-A (GB)
Title: Improvements relating to insulation material
IPC: C08G18/60
Filed: 1962-10-25
Abstract: An insulation material comprising a substantially closed-cell polyurethane foam having the vapour of a fluorohalogenated hydrocarbon in the cells thereof, the polyurethane being derived from (i) a polyamide ester which has an acid number of less than 2, an amine number of less than 2, and a hydroxyl number not less than 400, and (ii) an organic polyisocyanate.  The polyamide ester is preferably used in a proportion of 0.95 to 1.05 parts by weight, and the polyisocyanate is used in a proportion of 1.05 to 0.95 parts by weight, wherein the polyamide ester is the reaction product of (1) 1 to 1.4 mols. of a dicarboxylic acid, a dicarboxylic ester, a dicarboxylic acid chloride and/or a dicarboxylic anhydride; (2) 1.3 to 1.6 mols of a triol; and (3) 0.3 to 0.8 mols of an alcohol amine. The fluorohalogenated hydrocarbon preferably has a boiling point between 0 DEG C. and 60 DEG C., and is present in a proportion of 6 to 12% by weight of the polyurethane.  Fluorohalogenated hydrocarbons mentioned are trichloromonofluoromethane, dichlorodifluoromethane, trichlorotrifluoromethane, dichlorotetrafluoroethane, dibromo difluoromethane, and mixtures of these. Dicarboxylic components of the polyamide ester mentioned are, dimethyl adipate, diethyl sebacate, diethyl succinate, adipic acid, dimethyl terephthalate, dimethyl isophthalate, dimethyl phthalate, succinic acid, terephthalic acid or isophthalic acid, and acid chlorides and anhydrides of these acids. Amine components mentioned are ethyleneamine, hexamethylene diamine and phenylene diamine; 3-amino-1, 2, propanediol, 2-amino-1, 3-propanediol, 3-amino-1, 4-hydroxymethyl benzene, N-2-hydroxyethyl, ethanolamine, 2, 3-diamino propane, hydroxymethyl paraphenylene diamine, N-hydroxy-ethyl-ethylene diamine, triaminomethyl propane, 1, 2, 3-triamino propane, and ethanol amine, 1-amino -2- propanol and 3 amino propanol. The triol component is trimethylolpropane. Polyisocyanates mentioned are toluene diisocyanate, diphenylmethane 4, 41 diisocyanate, toluene-2, 4-diisocyanate, toluene-2, 6 diisocyanate and mixtures thereof; 3, 31-bipolylene-4, 41-diisocyanate; 3, 31-dimethyl-diphenylmethane-4, 41-diisocyanate; hexylene 1, 6 diisocyanate; and m-phenylene diisocyanate. In Example 1, 30 gms of a polyamide ester, obtained from 1.2 mols of dimethyl adipate, 0.6 mol of ethanolamine, 1.45 mols of trimethyl propane and 0.06% by weight of lead monoxide, having a hydroxyl number of 420 and an amine number of 1.5, was mixed with 120 grams of toluene diisocyanate and 0.02 gram of phosphorus trichloride for 1 1/2 hours at 72 DEG C. in a nitrogen atmosphere to give an intermediate polymer. 100 grams of this polymer was mixed with 21 grams of trichloromono-fluoromethane and added to 60 grams of polyamide ester and 9.4 grams of ethylene glycol, in a mould. Foaming took place to give a polyurethane foam having a vapour of trichloromono-fluoromethane in the substantially closed-cells thereof.
Patent GB-1018755-A (GB)
Title: Sensitization of photographic silver halide emulsions
IPC: G03C1/08
Filed: 1962-10-26
Abstract: 1,018,755. Photographic silver halide emulsions. EASTMAN KODAK CO. Oct. 26, 1962 [Oct.26, 1961], No. 40677/62. Heading G2C. Photographic silver halide emulsions are sensitized with a combination of an alkali metal or ammonium thiosulphate and one of the following sulphinic acids; methanasulphinic, ethanesulphinic, methanedisulphinic, benzene sulphinic and its derivatives having chloro, methyl, methoxy or acetamino substituents in the ring, salicylic sulphinic, #-naphthalene sulphinic, cyclohexane sulphinic or thiophene sulphinic acids, or a watersoluble salt of such an acid.;
Patent GB-983494-A (GB)
Title: Process and apparatus for the cooling of particulate solids
Inventor: CALLOW ALAN EDWARD
IPC: F28C3/16
Filed: 1961-11-14
Abstract: 983,494. Cooling granular materials. BRITISH TITAN PRODUCTS CO. Ltd. Nov. 2, 1962 [Nov. 14, 1961], No. 40740/61. Heading F4U. The surface of a fluidized bed 4 of a hot par. ticulate solid to be cooled is divided into sections by at least one baffle, a vaporizable cooling liquid being sprayed on to the surface of at least one section of the bed, the cooled particles being withdrawn from a section or sections of the bed not sprayed with cooling liquid. As shown, the fluidized bed is formed in an upright cylindrical chamber 1 having a wind-box 5 at the base, separated from the bed by a perforated floor 2, having capping 3 over the perforations. Flat baffle-plates 8 and 9 extend to a depth of about two inches below the surface of the bed and divide the surface into a zone 10 on to which the cooling liquid, e.g. water, is sprayed from a sprinkler 13, a zone 12 into which particles to be cooled are fed, and a zone 11 from which cooled particles are removed through an exit port 7. The fluidizing gas, e.g. air, should be cooler than the hot particles, and the cooling liquid should be non-reactive with the particles. Specifications 724,193, 761,770, 794,666 and 813,489 are referred to.
Patent GB-1327456-A (GB)
Title: Frequency generators
IPC: H04J1/06
Filed: 1970-08-23
Abstract: 1327456 Phase controlled oscillators; frequency division multiplex SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 25 Aug 1970 [13 Nov 1969] 40845/70 Headings H3A and H4R A carrier frequency generator for use in a frequency division multiplex system comprises a reference signal source, and a plurality of phase controlled loops such as shown in Fig. 2, each including a phase controlled oscillator 0 and a phase comparator F. The reference source and the controlled oscillator O may be crystal controlled with their outputs applied to set and reset a bi-stable circuit F forming the phase comparator. Squaring circuits S 1 , S 2 , pulse shapers I 1 , I 2  and a frequency divider D may be placed in the paths of the two signals. The phase compared output is applied via an integrator / for controlling the oscillator o. When the reference input to the phase comparator F disappears, a circuit K detects that the comparator output has one of its two extreme values for more than a predetermined period and opens a switch H supplying an output signal. The squarer S1 may be dropped if the oscillator o supplies a square wave output.
Patent GB-1104020-A (GB)
Title: Improvements in exhaust silencing arrangements on multicylinder internal combustion engines
IPC: F01N13/08
Filed: 1966-09-19
Abstract: 1, 104, 020. Exhaust silencing arrangements. DAIMLER-BENZ A. G. Sept. 19, 1966 [Sept. 29, 1965], No.41644/66. Heading F1B. In a silencer for a multi-cylinder I. C. engine with two exhaust pipes 1, 2 Fig. 2, one or more common silencers (4), (5), Fig. 1 (not shown) and a pressure-equalizing cross-connection (3), the latter comprises a casing composed of two pressed sheet metal half shells 7a, 7b and pressure-equalizing openings 10 formed by transverse internal depressions 9a, 9b. The exhaust pipes are inserted on the inflow side into a socket of the casing and on the outflow side are fitted over a similar neck. The positions of the low frequency silencer 4 and the high frequency silencer 5 can be reversed.
Patent GB-1439147-A (GB)
Title: Manufacture of vehicle disc wheels
IPC: B23Q17/22
Filed: 1972-09-07
Abstract: 1439147 Drilling machines; machine tool details DUNLOP Ltd 29 Aug 1973 [7 Sept 1972] 41677/72 Headings B3B and B3C [Also in Division G3] A boring machine, Fig. 2, is automatically controlled by a computer (see Heading G3N) so as to drill a central spigot hole in such a position in a vehicle wheel disc which will minimize the amplitude of radial displacement of the wheel rim, at the fundamental vibration frequency, when the wheel is rotating on a vehicle. A boring shaft 65 driven by an electric motor 66 extends from a boring head 61 which is vertically displaceable on parallel guide rails 59 on a support plate 58 by means of a feed motor 62. Horizontal movement of the support plate 58 is produced by a servo motor (not shown via a cam 68. The machine is at the end of an assembly line and means (not shown) sets one wheel after another on an idler station 22, studs 26 thereof locating in holes in the wheel disc. In operation a piston 23 of the idler station is lowered until the wheel rim rests on a transfer frame 20 which moves the rim to a boring station. When. the rim is in position thereat, a shaft 67 and a lower adaptor plate 28, are vertically displaced upon displacing a plate 33 by means of lifting cylinders 38 until protrusions 44 on the adapter plate locate in the wheel stud holes and the wheel is lifted clear off the transfer frame and clamped between adaptor plates 28 and 2. Electrical sensors 82 sense the wheel rim radial displacements and feed signals to a digital computer. The adaptor 28 and the wheel disc are rotatable by a servo motor 42 controlled by the computer. A sensor (4a) Fig. 1 (not shown) is positioned to sense the tool head position and signal the computer accordingly.
Patent GB-1027459-A (GB)
Title: Apparatus for receiving and storing liquid samples
IPC: B41M5/10
Filed: 1962-11-05
Abstract: 1,027,459. Sampling liquids; bottling. A. C. ZEILER-TE BOVELDT, [trading as FIRMA MACHINEFABRIEK J. W. C. ZEILER]. Nov. 5, 1962 [Nov. 9, 1961], No. 41703/62. Headings B8N and B8T. Milk samples are accumulated and stored in bottles 6 mounted on an endless band conveyer 5 within a refrigerated cabinet 1, the samples being fed to the bottles in turn as they are stepped into position in front of a hatch 14 and a delivery nozzle 3. The bottles are viewed through a window 2 and are illuminated by means of lamps 13. Each bottle is covered by a hinged cap which is raised automatically as the bottle is moved to the hatch 14. A number of such conveyers 5 loaded with sample bottles are mounted in a stack and a single delivery nozzle 3 is movable on vertical guides to gain entry to the bottles through a hatch such as 14 for each conveyer in the stack. Since the delivery nozzle is rinsed before the delivery of a sample it is normally outside the cabinet 1 and is passed in through the hatch for the delivery of each sample.
Patent GB-987482-A (GB)
Title: Well tool gripping assembly
Inventor: SIZER PHILLIP SPELMAN
IPC: E21B19/00
Filed: 1962-11-05
Abstract: 987,482. Wells. OTIS ENGINEERING CORPORATION. Nov. 5, 1962, No: 41705/62. Heading E1F. Apparatus for moving pipe into and out of a well comprises first and second fluid actuated pipe grippers, the second gripper being movable along the pipe axis relative to the first gripper. The first gripper 26 comprises slips 24, 25 for upward and downward movement of the pipe T respectively, and the second gripper 40 comprises slips which may be set for downward pipe movement (Fig. 2) or upward pipe movement (Fig. 4). Piston and rod 31, 32 move the gripper 40 relative to the gripper 26 which is fixed above fluid actuated blow out preventers 18, 19, 21 and master valve 16. During downward movement of the pipe (Figs 2, 3) the slips of the gripper 40 force the pipe downwardly and the slips 25 hold the pipe whilst the gripper 40 is returned to its uppermost position, and during upward movement of the pipe (Figs 4, 5) the slips of the gripper 40 pull the pipe upwardly and the slips 24 hold the pipe until the gripper 40 has returned to its lowermost position. During pipe movement the preventors are actuated to allow passage of pipe couplings C. An hydraulic system (Fig. 6, not shown) for the apparatus includes a constant volume pump, a valve arranged to lock the piston in position, and an accumulator ensuring fluid supply to the preventers and slips in event of a pump failure. In a modified system (Figs 13, 14 not shown) a reversible pump supplies a circuit to move the piston, the circuit having a cooling system and reservoir. A constant volume pump may be connected to the reservoir to supply an accumulator serving the slips, preventers and master valve. Each of the slips 24, 25 and that of the gripper 40 include a body 205 (Fig. 8) having lips 205a arranged so that a slip may be connected to another, or to the top of the piston 32, by a clamp 201. The slip members 209 are engaged or disengaged by arms 223 pivoted by levers 225 moved by the rod 237 of pistons 241. The slip members may be locked about the pipe by screws 252 engaging the levers. The apparatus is mounted on the wellhead 15 of an underwater well, the casing 13 and the wellhead being protected by structures 12, 14. A hoist 41 and platform 51 are mounted on the apparatus.
Patent GB-1196940-A (GB)
Title: Ring Laser
Inventor: MACEK WARREN MICHAEL
IPC: H01S3/083
Filed: 1967-09-15
Abstract: 1,196,940. Lasers. SPERRY RAND CORP. 15 Sept., 1967 [20 Sept., 1966], No. 42197/67. Heading H1C. In a ring laser rotation rate sensor comprising a laser source 14 propagating vertically-planepolarized light beams 29, 32 in opposite directions in a closed loop optical cavity formed by mirrors 10, 11, 12, 13, a portion of the circulated energy is extracted by partially-transmitting mirror 10 which causes beams derived from clockwise and anticlockwise propagation 29, 32, respectively, to pass along spatially separate paths, the extracted clockwise beam 43 being converted first to circular polarization and secondly to horizontal plane polarization by a polarization converter 27 and a mirror 28, this beam 44 being then reflected into the path of the vertically-plane-polarized beam extracted from anticlockwise propagation so that the two orthogonally-polarized beams pass through an amplitude equalizing analyser 25 to a heterodyning photodetector 6. The arrangement is stated to prevent "mode locking" as the polarization of backscattered light is changed. As shown the laser source 14 comprises a heliumneon filled tube, excited by radio frequency applied to electrodes 18, 19 from a source 15 and provided with Brewster angle windows 20, 21 for emitting vertically-polarized radiation. A differential circulatory path length is provided by a bias arrangement consisting of a magneto-optic birefringent member 22 located between circular polarizers 23, 24 each consisting of a quarter-wave plate of crystalline quartz. Consequently for each direction of a light beam through the arrangement it is circularly polarized at the first polarizer and restored to vertical polarization at the second polarizer. A magnetic field 4 is applied to the birefringent member 22 which has the effect of presenting different indices of refraction to the circularlypolarized beams passing in opposite directions, with the result that the effective path lengths for the oppositely propagated beams are different.
Patent GB-1005371-A (GB)
Title: Antioxidants and compositions of matter containing them
IPC: C07C67/48
Filed: 1960-12-09
Abstract: The stability of organic substances which are sensitive to oxygen or oxidation is improved by incorporating into these substances from 0.001 to 5% by weight of at least one compound of the general formula <FORM:1005371/C4-C5/1> wherein X is the ethylene or vinylene group, R is hydrogen, an alkyl group, a hydroxyalkyl group, an aralkyl group or a carbacyl group, and the benzene radicals may be further substituted by halogen, alkyl groups or the hydroxyl group.  The process may be used to stabilize hydrocarbons, e.g. tetralin, petroleum products, e.g. gasoline, lubricating oils, mineral oils and waxes, and essential oils.  In Example 5 a mineral turbine lubricant is stabilized by the above process.  Reference has been directed by the Comptroller to Specifications 777,546 and 820,476.ALSO:The stability of organic substances which are sensitive to oxygen or oxidation is improved by incorporating into these substances from 0.001 to 5% by weight of at least one compound of the general formula <FORM:1005371/C3/1> wherein X is the ethylene or vinylene group, R is hydrogen, an alkyl group, a hydroxyl alkyl group, an aralkyl group or a carbacyl group, and the benzene radicals may be further substituted by halogen, alkyl groups or the hydroxyl group.  The process may be used for stabilizing natural and synthetic addition and condensation polymers, e.g. vinyl and vinylidene polymers and co-polymers, especially those containing C=C bonds and tertiary carbon atoms, e.g. rubbers, polyethylene and polypropylene and polycondensates, e.g. those containing esto and/or amide and/or urethane groupings.  In the examples, various compounds of the above general formula are used to stabilize high and low density polyethylene (Example 3), isotactic polypropylene (Example 3) and polyesters formed from caprylic acid, trimethylol propane and sebacic acid in the presence or absence of an esterification catalyst (Example 4).  Reference has been directed by the Comptroller to Specifications 777,546 and 820,476.ALSO:The stability of organic substances which are sensitive to oxygen or oxidation is improved by incorporating into these substances from 0.001 to 5% by weight of at least one compound of the general formula <FORM:1005371/C2/1> wherein X is the ethylene or vinylene group, R is hydrogen, an alkyl group, a hydroxyalkyl group, an aralkyl group or a carbacyl group, and the benzene radicals may be further substituted by halogen, alkyl groups or the hydroxyl group. The process may be used for stabilizing aldehydes, esters, ethers, fatty acids and ketones. In the examples various compounds of the above formula are used to stabilize oenanthol (Example 1) and trimethylolpropane-tripelargonate (Examples 5 and 6).  Example 6 also describes the production of 11,11,31,31 - tetramethylbutylimino-dibenzyl and bis-(11,11,31,31-tetramethylbutyl) iminodibenzyl by heating "Hyflo" (Trade Mark), diisobutylene, sulphuric acid and iminodibenzyl.  Reference has been directed by the Comptroller to Specifications 777,546 and 820,476.