baber/WOPTO huggingface dataset:
Patent GB-1363467-A (GB)
Title: Process for obtaining dry thermoplastic synthetic resin powders from supensions in liquefield gases
IPC: B29B9/00
Filed: 1971-12-16
Abstract: 1363467 Recovering dry thermoplastic resin powders CHEMISCHE WERKE HULS AG 16 Dec 1971 [17 Dec 1970] 58384/71 Heading C3P Dry thermoplastic resin powders are recovered from suspensions thereof in liquid volatiles by a process wherein the suspension is separated into liquid volatile and powder moist with liquid volatile by centrifuging under 0À5 to 15 atmospheres gauge, bringing the moist powder into contact with a stream of superheated liquid volatile in gaseous form so that the powder is carried away thereby and is then separated out, an amount of the gaseous liquid volatile equal to that introduced with the powder as moisture being condensed and returned to the suspension while the remainder is warmed and fed in gaseous form to a further amount of powder moist with liquid volatile. When treating suspensions obtained using Ziegler catalysts ammonia is preferably added to the gaseous liquid volatile to reduce corrosion of the apparatus. The separation system may comprise two cyclones in series from the second of which a portion of the gaseous liquid volatile, which may include some polymer powder, is withdrawn, condensed and recycled to the centrifuge. Apparatus for carrying out the process is described and illustrated. An example describes the separation for isotactic polybutene-1 from a suspension in butane and butenes.
Patent GB-1342148-A (GB)
Title: Gear mechanism for a timepiece
IPC: G01D5/04
Filed: 1971-12-17
Abstract: 1342148 Clocks and watches SUWA SEIKOSHA K K 17 Dec 1971 [28 Dec 1970] 58713/71 Heading G3T In order to facilitate the assembly of a bridge plate 2 to a timepiece gear mechanism comprising a base plate 1, pillars 3, 4 and shafts 5-8, a guide plate 9 is first fitted to the pillars to prevent the ends of the shafts from leaning over. The guide plate 9 may be of metal or plastics and contains apertures which provide a slight clearance, in use, to the corresponding shaft pivots. The timepiece may be an electric watch, the shaft 8 carrying an anchor or lever which is driven by a magnet (not shown) which would influence the shaft positions during assembly were it not for the guide plate 9.
Patent GB-1419500-A (GB)
Title: Microwave coupling devices
IPC: H01P5/16
Filed: 1972-12-21
Abstract: 1419500 Microwave coupling circuits GENERAL ELECTRIC CO Ltd 11 Feb 1974 [21 Dec 1972] 59293/72 Heading H1W A microwave coupling circuit comprises a port 1 connected to ports 2, 3 by paths 4, 5 of equal electrical length, and a second transmission path 6, 7, 8 between the ports 2, 3, the second path having connected across it loads 9, 10 spaced from one another by an electrical distance of an odd number of halfwavelengths at the operating frequency, and spaced from the ports 2, 3 by paths 6, 8 of equal electrical length. The paths 4, 5, 6, 8 may have electrical lengths of a quarterwavelength. The circuit may be made of coaxial lines, striplines or waveguides having a characteristic impedance of #2Z 0  and the loads 9, 10 may have an impedance of 2Z 0 . An input at port 1 is divided in phase between ports 2 and 3, or co-phasal inputs at ports 2, 3 are combined at port 1, with good isolation between the input ports. The operative bandwidth may be broadened by adjusting the impedances of the lines and the loads. Lines 12, 13, 14 and load 15 may be added to the circuit, in which case there is a division of input energy applied to port 1 between ports 2, 3, 11. Further division may be obtained by addition of further circuits, e.g. as indicated by the dashed lines.
Patent GB-1364010-A (GB)
Title: Silver metallizing compositions
IPC: H01B1/02
Filed: 1972-12-22
Abstract: 1364010 Metallizing composition E I DU PONT DE NEMOURS & CO 22 Dec 1972 [22 Dec 1971] 59426/72 Heading C1M [Also in Divisions C7 and H1] A metallizing composition comprises silver powder, Bi2O3, glass frit and at least 0À01%, based on the weight of silver, of an additive comprising nickel, tantalum or a mixture or alloy thereof. The composition may be dispersed in an inert vehicle, applied to a dielectric substrate and fired. The glass frit may comprise, by weight percent, 63À2 CdO, 7À4 Na2O, 16À6 B2O3, 0À7 Al2O3 and 12À8 SiO2.
Patent GB-1214540-A (GB)
Title: Method of regenerating spinning baths
IPC: D01F6/18
Filed: 1968-12-17
Abstract: 1,214,540. Regenerating spinning baths. SOC. ITALIANA RESINE S.p.A. 17 Dec., 1968 [20 Dec., 1967], No. 59988/68. Heading B5B. Spinning baths used in making acrylonitrile copolymer threads, by extruding a dimethylformamide (DMF) solution of the polymer into a coagulating bath comprising cumene, DMF and linear paraffins having 10 to 16 carbon atoms and drawing the threads in baths mainly comprising the said paraffins, are regenerated by mixing the solution discharged from the coagulating bath, which contains raised quantities of impurities and DMF, more than 50% cumene, 15 to 35% DMF and up to 25% of the said paraffins, with the solution discharged from the drawing bath, which contains raised quantities of cumene and DMF, impurities and over 80% of the said paraffins, and adding to the mixed solution the cumene and paraffins which separate as the lighter phase from the thread wash baths. Then 5 to 9% by weight of the resulting mixture is treated with between 0À5 and 10 parts by weight of water per part by weight of DMF in the mix to separate an aqueous layer and an organic layer. Water is distilled from the aqueous layer and the residue is distilled by a thin layer technique to separate DMF, and the organic layer is fractioned to separate cumene from the paraffins. The cumene together with a DMF fraction and, if desired, paraffins, are added to an untreated fraction of the mix to restore the composition to the values of the coagulation feed, the said fraction being recycled to the coagulating bath, and the paraffins being recycled to the drawing bath. The remaining DMF is used in forming the spinning solution.
Patent GB-1275900-A (GB)
Title: A pressure fluid operated percussion tool
IPC: E21B4/14
Filed: 1970-12-23
Abstract: 1275900 Percussive tools ATLAS COPCO AB 23 Dec 1970 [7 Jan 1970] G1163/70 Heading B4C [Also in Division E1] A down-the-hole percussive tool comprises a housing 10, a hammer piston 42 reciprocable in the housing to strike a bit 30, a valve. 16 controlling fluid flow to working chambers 44, 45, control ports 65, 67 leading fluid from the chambers to lower or raise the valve, ducts 24, leading fluid to the chamber 44, and a channel 51 in the piston connecting the duct 24 with port 67 and duct 68 to raise the valve and direct fluid through the valve, ducts 27, chamber 45, port 53, and passages 39 in 'the bit to flush the borehole when the extension of the bit from the housing exceeds the extension for drilling (shown). A port (not shown) just below port 65 communicates with the duct 68 to ensure that flow through port 65 does not move the valve. Fluid displaced by valve movements is exhausted via passages 69 ... 71 and bit passages 39. Air supplied to the tool with the tool mechanism in the position shown raises the piston. When the port 67 is uncovered the valve is raised and air is supplied to the chamber 45 through ducts 27 and ports 54 to cushion the rising piston. Finally the piston is driven downwardly and before the bit is struck the port 65 is uncovered to lower the valve in readiness for restarting the cycle of operations. The whole tool is rotated during drilling.
Patent GB-654201-A (GB)
Abstract: 654,201. Paper-making machines. EVANS, J. W. W. Feb. 5, 1946, No. 25717/48. Divided out of 622,644. [Class 96] In a paper-making machine having a wire &c. supported by a perforated belt moving over a suction box or boxes and having deckle-straps as described in Specification 421,604, each margin of the belt 11, Figs. 1 and 4, has equally-spaced and parallel transverse rows of holes 55, located, e.g., in grooves 54, and under the margins of the belt flush with the top of the suction box 17 are fixed plates 32 each having a row of holes 36 with which adjacent rows of holes 55 successively register. The lower ends of the holes 36 cooperate with a sleeve 41, Fig. 4, which can be turned to cut off suction from all holes 36 or open any desired number of them to suction as by linking holes 53 in the sleeve with the holes 36. Each plate 32 may have two rows of holes 36 corresponding in number and arrangement to alternate transverse rows of holes 55 in the belt and the holes 36 may join grooves 35 so that each row of holes 36 is always linked with one of the rows of holes 55. Each sleeve 41 may be cylindrical, closed at one end 42 and open to suction at the other and it may fit in a bore 34 in the plate 32. The holes 53 may be arranged in longitudinal and circumferential rows, Fig. 6, the number of circumferential rows and the number of holes in the longest of them being equal to the number of holes 36 in each plate 32. The number of holes 53 in consecutive circumferential rows may decrease by one towards the closed end of the sleeve and alternate rows may be offset in relation to intervening rows by the distance between the holes. Specification 622,644 also is referred to.
Patent GB-764821-A (GB)
Abstract: 764,821. Compressors. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. March 30, 1955 [April 14, 1954], No. 9276/55. Class 8(1) In a device for controlling the capacity of compressors by positively opening the suction valve of the compressor, communication between the suction chamber and the cylinder of the compressor is interrupted by a separate valve independently of the suction valve. The cylinder 1 has a plate 3 with suction or connecting channels 7 between the suction chamber 5 and the cylinder chamber. The spring-loaded annular place suction valve 6 may be opened by depressors 10 carried by a valve 8 which has passages 13 in alignment with some of the channels 7 and closed by a thin plate 11 capable of bending upwardly under presure of medium in the passages. The cylinder-shaped valve 8 is slidably mounted on a stationary piston 9 with which it forms a space 14 communicating via openings 15 and a control pipe 16 with an external control device for transmitting pressure medium, e.g. oil under pressure, to the space 14. The plate 11 and valve 8 are biased by a spring 12, and when the compressor is under full load pressure in space 14 holds the valve in the position shown in Fig. 1. Should the compressor draw in more operating medium from the suction chamber 5 than is necessary, the external control device operates to reduce the pressure in space 14 so that the spring 12 moves the valve 8 towards its seat 17 to effect a throttling of the admission from chamber 5 via channels 7 to the cylinder. If further unloading of the cylinder is necessary the throttling action continues until the valve 8 reaches its seat 17, in which position the depressors 10 begin to open the suction valve 6, until finally during the upward stroke of the compressor piston operating medium remaining in the cylinder escapes via channels 7 and passages 13 and by lifting plate 11 into the chamber 5. The device works in the reverse manner, i.e. if the cylinder is evacuated pressure in the space 14 increases to raise the valve 8 to control admission from the suction chamber 5 to the cylinder.
Patent GB-773188-A (GB)
Abstract: 773,188. Cash registers. NATIONAL CASH REGISTER CO. Dec. 21, 1955 [Feb. 2, 1955], No. 36582/55. Class 106 (1). In a cash register. or similar machine having a transversely movable line of interspersed totalizers, a slide is moved in multiple-item operations to select an item totalizer on that line for actuation, the slide being moved in an opposite direction in other operations, and differentially arrested under the control of keys, so as to select different ones of group totalizers on the same line. The cash register described is generally similar to that disclosed in Specification 614,346, but has two group totalizers in addition to the item totalizer. The two group totalizers correspond to two clerk's keys and are interspersed with the item totalizer on a shaft 36 which is shiftable, for totalizer selection purposes, by a lever 41 bearing a roller 44 engaged in a cam slot in a slide 46. The latter is moved forwardly (to the left in Fig. 2) against the action of a spring 48 by a stud 50 in an arm 51 so as to select the item totalizer. In multiple-item total and single-item operations, the arm 51 is rocked clockwise to permit rearward movement of the slide 46 which is arrested by a roller 88 in a lever 62. The position of this lever 62 is determined by the differential mechanism controlled by the clerk's keys which positions a lever 67 so that a roller 64 therein engages a surface 84 of the lever 62 or a surface 85. The lever 62 also controls a pawl 54 carried by the slide 46 so that the appropriate one of two shoulders 86, 87 is positioned in the path of the stud 50 which thus ensures that the slide 46 abouts the roller 88, and so properly selects one or other of the group totalizers to receive a total from the item totalizer or a single item set on the keys. When the totalizer shaft is moved to engage a selected totalizer with the actuators, a tooth 91 co-operates with the appropriate pair of four discs 90 on the shaft accurately to align the totalizer.
Patent GB-2001361-A (GB)
Title: Fastening means
IPC: E21D19/02
Filed: 1978-07-14
Abstract: A fastening means (7) for fastening adjacent sheets (3,5) of wire mesh used for containing loose friable material adjacent to a mine roof. The fastener means includes a head section (20) and an elongate tail section (22). Securement means (25) is incorporated in the head section for securing the head section to at least one sheet of mesh. <IMAGE>
Patent GB-2002686-A (GB)
Title: Improvements in and relating to prefabricated subsurface drains
IPC: B32B3/20
Filed: 1978-07-28
Abstract: The invention concerns a laminated structure for use in prefabricated subsurface drains comprising a supporting sheet material and a filter sheet material. The filter sheet material has a permeability sufficient to allow the passage of water while retaining soil. The supporting sheet material has a structural configuration such that channels are formed between it and the filter sheet material to allow free flow of water within the plant of the laminated structure. The laminated structure may comprise the supporting sheet material with (a) the filter material on one side only, or (b) the filter material on both sides, or (c) the filter material on one side and an impermeable sheet material on the other side. The filter material preferably is a synthetic, thermoplastic filamentary, non woven fabric and the supporting material is preferably a thermoplastic plastics net-like material. The materials are preferably joined by a flame-bonding technique.
Patent GB-2034680-A (GB)
Title: Filter Aids
IPC: B01J20/14
Filed: 1978-11-15
Abstract: A low beverage soluble iron content filter aid, especially diatomite, is disclosed, as is the method for its production, which comprises contacting the granular filter aid with tannic acid, gallic acid, or mixtures thereof, preferably in aqueous solution. Color control agents such as citric acid may also be present in the solution. The treated filter aid is useful in the filtration of vegetable based beverages, especially beer, wine, ale and fruit juices. The invention is also applicable to other filter aids which contain beverage soluble iron, such as perlite and clays.
Patent GB-2009892-A (GB)
Title: Butterfly valve
IPC: F16K1/228
Filed: 1978-12-05
Abstract: The valve comprises a valve disc having an annular sealing surface near its periphery, a flat annular seat provided in a housing accommodating the valve and actuating means for opening and closing the valve. The seat (13) includes a flexible membrane (16) integral with a bellows (17), the interior of which communicates with a fluid passage (11). After engagement of the disc sealing surface with the seat (13) the fluid pressure is admitted along passage (11) to sealingly press the membrane (16) against the disc. <IMAGE>
Patent GB-2010131-A (GB)
Title: A method of producing a mechanical resonator having a given resonant frequency
IPC: H03H3/013
Filed: 1978-12-14
Abstract: A process for producing mechanical resonator rod A involves the removal of material from the rod in a single operation. A function which relates changes in the resonant frequency to the removal of material is determined for each size of resonator and material is removed in one operation in accordance with this function which relates to the depth of a drilled hole. <IMAGE>
Patent GB-2036718-A (GB)
Title: Method of preparing vinyl chloride
IPC: C07C17/10
Filed: 1978-12-15
Abstract: A method of preparing vinyl chloride comprises thermal chlorination of a gaseous mixture containing 5 to 50 vol % of ethane and 50 to 95 vol % of ethylene, using gaseous chlorine supplied into a reaction zone in an amount defined by the formula: amount of chlorine (moles) = 3m + 0.3n, wherein m is the number of moles of ethane, n is the number of moles of ethylene, the gaseous chlorine being supplied at 4 to 6 points of said reaction zone evenly distributed along the length thereof.
Patent GB-2010859-A (GB)
Title: Encapsulated phosphites polymer stabilizer
IPC: C08L51/00
Filed: 1978-12-20
Abstract: Dialkyl pentaerythritol diphosphite stabilizers are encapsulated in a petroleum or ester wax and thereby rendered relatively immune to hydrolytic decomposition under ordinary conditions of storage. At the same time, the wax coating is sufficiently low melting as to present no problem during milling operations at elevated temperatures, for example, where the heat stabilizing qualities of the dialkyl pentaerythritol diphosphite in polymers such as PVC are required.
Patent GB-2040439-A (GB)
Title: Portable Stoves
IPC: A47J37/07
Filed: 1979-01-22
Abstract: This invention relates to apparatus for cooking food and is suitable for use in areas of the world where common energy sources, such as electricity, gas, coal or wood are difficult to obtain. According to the invention there is provided a combustion chamber (10) for burning therein a combustible substance so that food mounted on a grille (32, Fig. 5) above the chamber is cooked by heat given off from combustion of the substance. Any convenient combustible substance may be burnt in the chamber. The chamber comprises a plurality of stackable cylindrical components (11, 12, 13) adapted to be received one within another in a stored position (Fig. 2) and stacked one on top of another in an operating position (Fig. 1) thereby to comprise the chamber. The principal use of the invention is the provision of apparatus which requires inexpensive sources of energy for cooking food. However, the apparatus also is suitable for picnics because it is easily transportable and could use local material as an energy source. <IMAGE>
Patent GB-2040778-A (GB)
Title: Manufacture of die cut vinyl lettering
IPC: B26D7/18
Filed: 1979-01-29
Abstract: Die cut vinyl indicia are manufactured by die cutting a card/vinyl laminate. In order to remove undesired centres of letters such as A, B, downstream of the die-cutting head (1) a "centres" removal station (7) is arranged, at which undesired centres are removed by a compressed air blast from nozzles (8) in timed relationship to the movement of the laminate (3). A suction device 13, 14, 15 is arranged to collect the removed centres. <IMAGE>
Patent GB-2014538-A (GB)
Title: Improvements relating to pipe gripping arrangements
IPC: F16L1/20
Filed: 1979-02-28
Abstract: The present specification describes and claims a gripper assembly for use in gripping a pipeline or cable. The assembly comprises a pair of arms (1,2) attached to each other at a pivot point (3), pipe engaging members (11, 12, 17, 18) being mounted one on each arm (1,2) and one (13) fixed with respect to the pivot point (3). Means (14,15) are provided for pivoting the arms with respect to each other, such action causing the pipe engaging members (11,12,13,17,18) to move either away from or towards the pipeline. Due to a linkage (5,8) which supports arms (1,2) and pivot point 3, an opening movement causes both the arms and the pivot point (3) to move away from the pipeline. Thus all of the pipe engaging members, including pipe engaging member (13), move away from the pipeline. <IMAGE>
Patent GB-2018899-A (GB)
Title: Rotary-piston internal- combustion engine
IPC: F01C1/20
Filed: 1979-03-29
Abstract: In an engine of the type having a lobed, or "piston", rotor 4 which engages a gate, or "chamber", rotor 6 with a parallel axis of rotation, the exhaust gases are ejected through both a high-pressure line 24 and a low-pressure line 21. The high-pressure line is on the leading side of the low-pressure line with respect to the direction of rotation of the piston rotor. The exhaust gas in the high-pressure line may be used to either drive an air compressor for an air intake(s) 16, 18, Fig. 6 (not shown), or to draw out any remaining exhaust gas from the low-pressure line by means of an injector 20 in the low-pressure line. The lines 21, 24 may be oriented nearly tangential to the inner chamber wall to improve the gas flow. Similar exhaust-gas lines 23, 26 may be associated with the chamber rotor. <IMAGE>
Patent GB-2020229-A (GB)
Title: Apparatus for the Continuous Production of Information-Carrying Plates
IPC: G09F7/16
Filed: 1979-05-02
Abstract: Apparatus for the rapid, continuous production of tamper proof, information-carrying plates such as vehicle number plates includes hot stamping station 6 for forming grooves in the adhesive side of a self-adhesive support strip 1, station 7 for partially covering the grooves with metallic film 8, station 13 for applying and drying a layer of photosensitive varnish on the other side of the strip, electromagnetic radiation beam printer 16 for printing the layer of photosensitive varnish with information, a developer 17 for developing the printed information, a station 18 for applying and drying a protective layer of varnish and cutting station 22, In use the plates are secured to a support by their self- adhesive layer, Removal of the plate from the support destroys in a detectable manner the film 8. <IMAGE>
Patent GB-2053893-A (GB)
Title: Process for The Manufacture of 7-(oximinoacetamido)-Cephem Compounds
IPC: C07D277/20
Filed: 1979-07-18
Abstract: Cephem compounds of the formula I   <IMAGE>  wherein  A denotes hydrogen, a cation or the radical of an ester group, R1 denotes hydrogen, an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, acyl, aryl, arylsulfonyl, alkylsulfonyl or heterocyclic group, R2 denotes furyl, thiazolyl or phenyl optionally substituted by alkyl, aryl or by optionally protected amino and B denotes C1-4 alkoxy, methyl, acetoxymethyl, carbamoylmethyl, halogen or-CH2S-Het wherein Het is a 5-to 6-membered ring containing 1 to 4 hetero atoms and  n denotes 0, 1 or 2 and the R1O group is in the syn-position, are prepared by reacting carboxylic acids of the formula II   <IMAGE> or salts thereof, in the presence of at least 0.1 mol of a compound of the formula  R3R4NCOR5  wherein  R3, R4 and R5 are C1-6 alkyl groups, or R3 and R4 or R3 and R5 complete a ring optionally interrupted by a hetero atom, R5 denoting optionally dialkylamino, the alkyl groups of which each may contain 1 to 6 carbon atoms and may form a ring optionally interrupted by a hetero atom, with acid-halide-forming agents, and reacting the resulting complexes with cephem carboxylic acids of formula III   <IMAGE> in the form of amine salts, esters optionally cleavable by acid hydrolysis or hydrogenolysis or silyl esters and, if desired, converting any substituent A into any other substituent A.