baber/WOPTO huggingface dataset:
Patent GB-1463478-A (GB)
Title: Method of coating polyesters
IPC: C08J7/04
Filed: 1975-06-23
Abstract: 1463478 Cationic polyamide composition FUJI PHOTO FILM CO Ltd 23 June 1975 [28 June 1974] 26616/75 Heading C3R [Also in Divisions B2 and G2] A polyester body, such as a film for use as a photographic support, is coated by applying to at least one of its surfaces an aqueous solution of a polyamide-epichlorohydrin resin and a water-soluble swelling agent for the polyester. The polyester body may be a polyester of at least one dibasic carboxylic acid (e.g. terephthalic, isophthalic, diphenylsulphone-dicarboxylic, diphenoxyethanedicarboxylic, 5 - sodium sulphoisophthalic, diphenylenedicarboxylic, 2,6- naphthalenedicarboxylic, adipic, sebacic and azelaic acids), and at least one polyhydroxy compound such as a glycol and/or a hydroxy acid (e.g. ethylene glycol, propylene glycol, butanediol, neopentylene glycol, 1,4- cyclohexanediol, 1,4 - cyclohexanedimethanol, 1,4 - bis - hydroxyethoxybenzene, diethylene glycol, polyethylene glycol, bisphenols, and p - # - hydroxyethoxybenzoic acid). Preferred polyesters are polyethylene terephthalate, polybutylene terephthalate and polyethylene naphthalate. The polyester body may have only a surface of polyester or may consist entirely of polyester, e.g. as a film, in which case it may be coated according to the invention on one or both surfaces. The polyamide-epichlorohydrin resin may be the product of a reaction of (a) a polyamide produced by reacting a saturated or unsaturated dicarboxylic acid with a polyalkylene-polyamine, with (b) epichlorohydrin. Dicarboxylic acids may be succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic, itaconic, fumaric, maleic, citraconic and mesaconic acids. Polyalkylene-polyamines may be diethylenetriamine, triethylene tetramine, tetraethylene pentamine and dipropylenetriamine. Usually the proportions of (a) and (b) above are 1 mole of epichlorohydrin per 1-3 moles of amine group in the polyamide. Examples are given for preparing aqueous resin compositions of epichlorohydrin reaction products with two different diethylenetriamine-adipic acid polyamides, and with a tetraethylenepentamine-adipic acid polyamide. Swelling agents used in the coating include polyhydroxyaromatic compounds such as resorcinol, chlororesorcinol, 4-methylresorcinol, 2-methylresorcinol, catechol, pyrogallol, orcinol, phloroglucinol, hydroquinone, and dihydroxynaphthalene, and also pyrrole, chloral hydrate and highly acidic organic acids such as mono- and tri-chloroacetic acid and trifluoroacetic acid. The aqueous coating composition may also contain a surface active agent, e.g. saponin, glycerine esters or sorbitan esters, or sodium dodecylbenzene sulphonate, or polyethylene glycol, and materials such as dyes, polymer latex and matting agents. The coatings may be applied by dip coating, roller coating, curtain coating or extrusion coating, if desired applying more than one coating. Reference has been directed by the Comptroller to Specification 1,379,066.
Patent GB-381319-A (GB)
Title: Improvements in tool-holders for use in connection with reamers, drills, taps and like tools
IPC: B23B31/08
Filed: 1931-09-24
Abstract: 381,319. Chucks and sockets. BUSWELL & SWEENEY, Ltd. and BUSWELL, E., 188, Park Road, Aston, Birmingham. Sept. 24, 1931, No. 26627. [Class 83 (iii).] A self-aligning tool-holder for drills, taps, reamers, &c. comprises a tool-holding socket 2 connected to a shank 1 by an Oldham coupling. A flange 7 on the socket is provided with two parallel grooves 8, equally spaced from the axis, and a head 5 on the shank has similar grooves 6. Corresponding grooves 9, 11 are formed in an intermediate coupling member 4 and are arranged at right-angles to each other on the opposing faces to receive balls or rollers 10, 12 and allow lateral motion of the socket relatively to the shank in any direction. A cap 13, which is rigidly attached to the head 5 by screwing thereon and is locked in any adjusted position by a screw 3, encloses the coupling and limits the axial play by means of a flange 14. The coupling 4 and flange 7 are of smaller diameter than the cap to allow lateral movement. The shank 1 may be mounted in a turret or slide rest or in a chuck. According to the Provisional Specification an adjustable set-screw in the wall of the cap 13 may be provided for limiting the lateral movement of the flange 7.
Patent GB-227925-A (GB)
Title: Improvements in or relating to the recovery of oxalic matter from natural products
IPC: C07C51/48
Filed: 1923-10-25
Abstract: Plants containing oxalates, such as those of the genus Opuntia, are disentegrated to form a pulp from which the liquid may be removed and used in the production of mucilages and sizes. Specifications 208,684, 226,287, and 227,924, [all in Class 2 (iii), Dyes &c.], are referred to.ALSO:Calcium and other oxalates occurring naturally in plants such as those of the genus Opuntia are recovered by disintegrating the plant to form a pulp from which the oxalate is recovered by a froth-flotation process.  The plants may be pulped in their own juice or they may be dried, crushed, and then pulped with water. The pulp may be treated to dissolve certain otherwise insoluble constituents, other than oxalates, and the pulp first obtained may be freed from liquid and the residue again made into a pulp for subjection to the froth-flotation process.  The liquid removed from the initial pulp, if it contains oxalates in solution, may be treated with lime, for example, to precipitate calcium oxalate, which may be added to the pulp to be treated by the froth-flotation process.  Alternatively, the liquid removed from the pulp may be used in the production of alcohol, mucilages, and sizes. The pulp to be treated by froth-flotation is preferably first passed through a fine sieve and may receive a preliminary treatment with a small quantity of alkali.  The froth-flotation process may be assisted by the addition of a small proportion of tannin, and may be carried out in stages in a series of cells, the frothing agents being added one after another and the pulp being frothed after each addition.  Two examples of the process are given, in one of which the pulp, after addition of tannin, is treated with sesame oil, and in the other of which the pulp, after treatment as in the first example, is treated successively with eucalyptus oil and a froth-forming gas, the pulp being frothed after each addition.  Specifications 208,684, 226,287, and 227,924, are referred to.
Patent GB-331750-A (GB)
Title: Improvements in or relating to processes and apparatus for liquefying solid carbon-dioxide
IPC: F17C5/02
Filed: 1929-09-03
Abstract: 331,750. Maschinenfabrik Esslingen, and Stoffels, J. Sept. 3, 1929. Liquefying; solidifying.-Solid carbon dioxide is allowed to liquefy under its vapour pressure in closed vessels 1 and the liquid is delivered to receivers 2. Brine alcohol, &c. in a tank 9 surrounds the receivers, and is circulated by a pump 6 around the vessels 1 which extract hea from it, returning by pipes 7, 8 to the tank where it cools the receivers.
Patent GB-1115912-A (GB)
Title: Submersible pump assembly
IPC: H02K5/132
Filed: 1965-06-24
Abstract: 1,115,912. Pump motors. H. SCHAAK, [trading as MASCHINENFABRIK PAUL LEISTRITZ]. 24 June, 1965 [25 June, 1964], No. 26862/65. Heading H2A. A submersible pump assembly 1 comprises a pump 2 driven by a coaxial electric motor 3 comprising a rotor 20 and a stator 21 disposed in a housing 10 having at one end an inlet opening or openings through which enters the whole of the pump liquid flow stream and at the other end an outlet opening or openings through which the stream leaves the housing, the stream dividing after entering the housing into respective parts which pass between the stator and the housing and through the gap between the rotor and the stator to rejoin adjacent the other end of the housing, and there being no significant restrictions to flow between the location where the stream divides and the gap, and the gap and the location where it rejoins. As shown, the assembly is in a vessel 4 which the liquid, e.g. oil, enters through an inlet 5 and leaves through a pipe 30 the motor being at the delivery side of the pump although in Fig. 2 (not shown), it is at the intake side. The motor and pump have a common two-part shaft 13, 14 linked by a plug coupling 15 and borne in bearings 17, 19 subjected to the full pump pressure by virtue of a bore 26 collecting spaces 25, 28, and bores 27, 13A whereby they are cooled and lubricated. The housing end shield may mount a filter, and in a modification, Fig. 3, an extension of the shaft 13 through the end shield 11 carries a flywheel 47 that is interchangeable or alterable in its effect. The motor windings may be impregnated or encased in epoxy resin, and the pump may have axial thrust compensation.
Patent GB-713102-A (GB)
Title: Improvements in flexible couplings for shafts or other elements
IPC: F16D3/24
Filed: 1951-11-16
Abstract: 713,102. Universal joints. WILSON, S. Jan. 16, 1953 [Nov. 16, 1951; Jan. 17, 1952], Nos. 26888/51 and 1352/52. Class. 80 (1) in a universal joint in which the members 8, 11 to be coupled are each interconnected to an encircling sleeve 1. each interconnection comprises one of more annular set of equally-spaced spherically-headed projections 4 secured within the sleeve, the spherical heads being received in spherically-recessed blocks 5 which are axially and radially slidable in parallel-sided jaws 3 on the member 8 or 11. Alternatively, the projections 4 may be secured to the members 8, 11 and the jaws 3 formed in the sleeve 1. The sleeve comprises two sections bolted to a central plate 2 and provided with end rings 7. Each block may be split longitudinally, or may comprise a one-piece socket part and a bush. oil passages being provided.
Patent GB-284747-A (GB)
Title: Drying channels or tunnels
IPC: F26B21/00
Filed: 1926-10-28
Abstract: 2.84,747. Winkler, H. Oct. 28, 1926. Air, controlling circulation of.-The pressure sides of the air-circulating fans 1, 2, 3 of an open-ended drying- tunnel having side heating compartments defining the drying zones of the tunnel communicates through ducts 8, 9, 10 with the heating compartments of the following zone. Moisture-laden air is discharged by the fan 4, while the air at the material inlet end of the tunnel is circulated continuously by the fan 5. In a modification, the tunnel is provided with fans mounted upon vertical axes and working within casings having adjustable guides for directing the air into the heating compartments.
Patent GB-427162-A (GB)
Title: Improvements in and relating to metallurgical converters
IPC: C21C5/42
Filed: 1934-09-20
Abstract: 427,162. Metallurgical converters. LEVOZ, T., Colombier-Fontaine, Doubs, France. Sept. 20, 1934, No. 27034. [Class 72] A cylindrical metallurgical converter 1 is provided with cast steel ends 3 and is mounted upon hollow trunnions 4 through the conduits 5 and passages 7 air under pressure is supplied to an air chamber 8 with which is connected the extremities 9 of nozzles 10 which are placed laterally and in the same inclined plane towards the hearth 11. A stuffing box 6 is provided on one of the conduits 5 and the outlets 12 of the nozzles are in alignment, and come out flush with the wall 13 of the hearth 11. Tap holes 15 for the slag are placed opposite the nozzles 10 and the converter is rotated by the engagement of a toothed crown 16 with pinions 17 driven by any suitable means.
Patent GB-1008038-A (GB)
Title: Glass bottle and method of making
IPC: C03B9/36
Filed: 1963-07-13
Abstract: <PICT:1008038/C1/1> <PICT:1008038/C1/2> <PICT:1008038/C1/3> <PICT:1008038/C1/4> A method of making a glass bottle parison comprises sucking air downwardly from and through the open neck orifice of an upright parison mould having an opening in its upper end in the absence of positive pressure additionally applied above the charge, concurrently dropping a charge of glass through the upper end of the mould, substantially closing the neck orifice of the mould as the bottom of the glass charge reaches it, and thereafter completing the parison.  A gob of glass 40, Fig. 20, is severed by knives 36, 38 and drops into the cavity of a parison mould while simultaneously air is sucked by a low vacuum along the lines of the arrows 84, 86 and through the cavity in a ring neck mould. A baffle 56, Fig. 21, then closes the top of the mould, air continuing to pass in through a valve 96, and a plunger 72 is moved upwardly reaching a half-way position as the gob 40 engages a shoulder 52 of the mould. When the gob has reached the position shown in Fig. 22 the vacuum is cut off and, while simultaneously withdrawing the plunger 72, the gob is counter-blown by compressed air forced through channels in the plunger 72, Fig. 26.  The formed parison is transferred to a bottle blowing mould and finished in the normal manner.
Patent GB-916084-A (GB)
Title: A process for the production of ª-, ª- unsaturated acid esters of the vitamin a series
Filed: 1960-08-04
Abstract: An improvement in the process of the parent Specification comprises dehydrating the a -hydroxycarboxylic acid ester using a compound of formula <FORM:0916084/IV (b)/1> wherein R is an alkyl, cycloalkyl or aryl radical, R1 is an alkyl or cycloalkyl, X is a phosphorus atom and Y a chlorine atom, the reaction being carried out at an elevated temperature in the presence of an inert organic solvent and quinoline or N,N-dimethylaniline.  In examples 5-(21,61,61-trimethyl-cyclohexene-(21) -ylidene) - 3 - methyl-2-hydroxy-pentene-(3)-oic acid methyl ester is dehydrated to 5-(21,61,61-trimethyl - cyclohexadiene - (11,31)-yl)-3-methylpentadiene-(2,4)-oic acid methyl ester using diethyl or di-n-propyl or di-n-butyl or dicyclohexyl monochlorophosphite.
Patent GB-1338783-A (GB)
Title: Entry tool for unloading mechanism for a sealed storage structure
IPC: A01F25/20
Filed: 1971-04-19
Abstract: 1338783 Unloading silos A O SMITH HARVESTORE PRODUCTS Inc 19 April 1971 [15 April 1970] 27090/71 Heading B8E A combination of a sealed storage structure or silo 1 and a removable unloading mechanism 7, such as is described and claimed in Specification 1,329,432, is provided with an entry tool 66 arranged to be rotated about hub 67 to facilitate entry of cutter arm assembly 8 into the silo 1. The entry tool 66 operates to clear the central portion of a trough 6 between a pair of augers 10 which convey material to the exterior of the silo 1. The entry tool 66 is rotated independently of the rest of the mechanism and its rotation is stopped once the installation of the cutter arm assembly 8 has been completed.
Patent GB-1469979-A (GB)
Title: Measuring instruments
IPC: G01B3/22
Filed: 1974-06-19
Abstract: 1469979 Dial gauge H MEYER 19 June 1974 [22 June 1973] 27092/74 Heading G1M A dial gauge comprises a feeler 7 pivotally mounted in a casing by means of at least three springs 3 arranged around and parallel to the pivotal axis, and an indicating mechanism operatively coupled to the feeler 7. A spindle having a hub 2 is fixed in the casing 1 by riveting at 2b. A member 4 is pivotally mounted from hub 2 by four springs 3 fixed in radial grooves in hub 2 and member 4 by means of riveting, welding or glue. A member 6 is rotatably mounted on member 4 and coupled thereto by a friction spring 9 which permits relative movement of members 4 and 6 above a predetermined torque. Rotation of member 4 is limited by a bar 8 fixed to the spindle engaging holes 4b in the member 4. Tilting of the member 4 is limited by its limited clearance about the spindle and the hub 2. A lever 5 fixed to member 4 operates the indicator mechanism.
Patent GB-377018-A (GB)
Title: Guides for the paper sheets in typewriting machines
IPC: B41J13/16
Filed: 1931-09-29
Abstract: 377,018. Typewriters &c. WANDERER-WERKE, VORM. WINKLHOFER & JAENICKE AKT.-GES., Sch÷nau, near Chemnitz, and VOGT, A., 22, Ulmenstrasse, Chemnitz, Germany. Sept. 29, 1931, No. 27106. [Class 100 (iv).] Sheet-guiding arrangements. - A paper-guide for typewriters and like machines comprises two guide-portions disposed below the platen and displaceable tangentially to the platen. The guide-portion a is mounted loosely, bv means not shown, on the axis of the lever arm which supports the roller n. A second guide-portion b is mounted by means of a lug g on an arm i which carries the roller k. Fingers d with upwardly curved parts c are provided on the portion a and engage with slots e in the portion b. The portion b lies closely over the roller k and is provided with a flap m at either end to guide wide sheets. On releasing the rollers k, n by rotating a cam o, the space between the two guide-portions is still bridged by the fingers d and the space between guide-portion band roller k is not increased so that the sheet cannot get entangled.
Patent GB-633457-A (GB)
Title: Improvements in or relating to piston rings and the like packing rings
IPC: F16J9/26
Filed: 1947-10-09
Abstract: 633,457. Making piston-rings. PERKINS, W., and HEPWORTH & GRANDAGE, Ltd. Oct. 9, 1947, No. 27110. [Class 83 (ii)] [Also in Group XXVI] In a method of making chromium-plated piston-rings each peripheral edge of the rings is bevelled or chamfered as at 3 before the rings are assembled in axial alignment for the electrodeposition of a layer of chromium 11. By reason of the bevels, the peripheral surface of the cylinder formed by the assembled rings is interrupted by annular grooves 10 in which the chromium layer is thinner and tapers down to the base of the groove. This results in each ring having a chromium layer on its working surface which is smoothly rounded-off at the corners and no sharp edges are left due to a break in the chromium layer when the rings are separated. The abutting ends 4 of each ring may be similarly bevelled to form a groove 12. In the case of inwardly springing rings, the inner surface may be similarly plated. If desired a layer of a softer material such as tin, cadmium, zinc or lead may be applied over the chromium. One or more of the faces of the ring may be etched to assist bedding and lubrication. Specification 632,986, [Group XXVI], is referred to.
Patent GB-169103-A (GB)
Title: Improvements in and relating to the sizing of textile fabrics or the like
IPC: D06M11/79
Filed: 1920-09-24
Abstract: A sizing-material for textile fabrics and the like is prepared by adding equal parts by weight of neutral sodium silicate, aluminium sulphate, china clay, and gelatine to three parts by weight of water. The product may be left as a paste or dried and ground to powder form.  Specification 104,408, [Class 15 (i), Dyeing &c., Apparatus for], is referred to.
Patent GB-649692-A (GB)
Title: Manufacture of biguanide derivatives
IPC: C07C279/26
Filed: 1948-10-20
Abstract: Biguanide derivatives of the general formula <FORM:0649692/IV (b)/1> (wherein R and R1 represent hydrogen or alkyl radicals of 1-3 carbon atoms, R11 and R111 represent hydrogen or lower alkyl radicals such that together they contain 2-7 carbon atoms, and of X, Y and Z at least one is Cl, Br or I and the others may be H, Cl, Br, I or alkyl radicals of 1-3 carbon atoms, are manufactured by interaction of a salt of a guanidine derivative of the formula <FORM:0649692/IV (b)/2> with an O-alkylisourea of the formula <FORM:0649692/IV (b)/3> (wherein Alkyl includes substituted alkyl, e.g. benzyl) in the presence of an alkali metal hydroxide in an organic liquid medium, which is preferably non-hydroxylic.  In examples, N-p-chlorophenyl-, N-p-bromophenyl- and N-3 : 4-dichlorophenyl-O-methylisourea are heated with isopropylguanidine sulphate and sodium methoxide in toluene. Specifications 607,720 and 624,578 are referred to. N-p-Bromophenyl and N-3 : 4-dichlorophenyl-O-methylisourea are obtainable from N-p-bromophenylcyanamide and N-3 : 4-dichlorophenylcyanamide respectively by the action of methanol and hydrogen chloride.
Patent GB-1079439-A (GB)
Title: Improvements in or relating to soil cultivating implements
IPC: A01B19/02
Filed: 1965-06-28
Abstract: 1,079,439. Agricultural implements. C. VAN DER LELY N.V. June 28, 1965 [July 2, 1964], No. 27378/65. Heading A1B. The tines of a harrow are formed of resilient wire and provided with a portion 34 which allows the tine to move upwardly between two tine supports as shown in dotted lines. Each tine is pivotally attached to a support by means of a plate 38, the free end of each tine being formed as a hook 42 which is inserted in one of recesses 44 in a sector 43 to vary the pressure exerted on the ground by the working part 32 of the tine .
Patent GB-611224-A (GB)
Title: Process of separating gaseous mixtures
IPC: B01D53/14
Filed: 1945-10-18
Abstract: <PICT:0611224/III/1> A gaseous mixture (A and B), alone or diluted with air or an inert gas (C), is separated into its constituents by a process comprising selective absorption in a solvent followed by desorption in two stages, the first consisting in desorbing that portion of the less soluble gas (B) which has dissolved in the solvent by part of the gaseous mixture obtained in the second stage, the gaseous product of the said first desorption being passed through the absorption stage, whilst the second desorption stage consists in desorbing the more soluble gas (A) by an injection of inert gas (C1). As shown in Fig. 1, a gaseous mixture a+b+c increased by a mixture a1+b1+c11 from a previous cycle is introduced into the base of the scrubber I into which is sprayed the solvent s, whence fractions a+a1 pass into solution, B saturates the solution to the value b1 and then a gaseous fraction b separates integrally at the upper part of the scrubber together with gaseous fractions c and c11.  The solution then enters the scrubber II where the dissolved fraction b1 is selectively desorbed by a gaseous mixture a1+c11 flowing from the scrubber III.  The gas b1 along with gaseous fractions a1+c11 passes into scrubber I, while the solution containing a1+a passes to scrubber III where the injection of inert gas c1 desorbs the whole of A producing a gaseous fraction a1+c11 which passes into scrubber II and a gaseous fraction a+c111 which leaves the plant.  The solvent s returns to the head of the scrubber I to recommence a new cycle.  The process can also be carried out in a single tower and examples show the application of the process to the separation of mixtures of chlorine dioxide, chlorine and air.
Patent GB-426493-A (GB)
Title: Improvements in or relating to rotary tobacco or like leaf cutting machines
IPC: A24B7/04
Filed: 1933-10-06
Abstract: 426,493. Cutting tobacco &c. DEARSLEY, G., and MOLINS MACHINE CO., Ltd., 2, Evelyn Street, Deptford, London. Oct. 6, 1933, No. 27548. [Class 5 (i)] [See also Groups VI, VIII, and XXIII] A machine for cutting tobacco, tea, or like leaves comprises a rotatable knife or knives 4, which is or are sharpened after each cutting operation by a grinder 6 contiguous with the path of the knife or knives, and means to engage with and clean the knife or knives, such means having a surface movable relatively to the knife, the direction of movement of said surface, when in engagement with the knife, being transverse to and away from the edge of the knife in the direction in which the edge is pointing. The cleaning means comprises a brush 7 positively driven at a greater peripheral speed than that of the knives and engaging the back faces of the knives. An additional cleaning means, engaging the front faces of the knives, comprises a brush 13 or brushes rotated about an axis 14, the knives being mounted on inclined supports so that the brush 13 may pass beneath the back of the preceding knife support, the brush 13 is. rotated at a greater speed than, but in synchronism with, the knives, to engage each knife as it passes the cleaning point. The brushes may be provided with wire bristles, or, instead of bristles, with flexible plates.