baber/WOPTO huggingface dataset:
Patent GB-416590-A (GB)
Title: Improvements in and relating to the manufacture of cellulose ethers
IPC: C08B11/02
Filed: 1933-03-18
Abstract: Methyl celluloses are produced by treating semi-moist alkali cellulose at a temperature below 10 DEG  C., and preferably between 0 and 5 DEG  C. with dimethyl sulphate in amount less than one molecular proportion, preferably \ba1/4\be molecular proportion, of dimethyl sulphate for every unit of cellulose treated.  The ethers are insoluble in water and do not form substantially complete solutions in aqueous alkalies in any concentration at ordinary temperatures, but they yield solutions when they are suspended in an aqueous solution of sodium hydroxide, cooled to below 0 DEG  C. until crystals of ice appear, and then thawed.  The concentration of the caustic soda is preferably 8--10 per cent, and that of the methyl cellulose, 5 per cent.  The solutions may be used in the manufacture of films and filaments, in filling cloth, bookbinding, textile finishing, and the like.  The methyl celluloses may be dissolved also in cuprammonium solutions, solutions of zinc chloride, calcium thiocyanate, and the like.  Again they may be dissolved in aqueous caustic soda with the help of colloids or dispersing agents, such as turkey red oil, isopropylated naphthelene sulphonate, and water-or alkali-soluble hydroxyethyl celluloses or methyl celluloses.  The methyl celluloses may also be dispersed in a colloid mill with or without the help of dispersing agents.  In an example, 216 parts of a -wood boards after conversion to alkali cellulose and ageing, are stirred with 80 parts of dimethyl sulphate at 4--6 DEG  C.  The product, with or without separation by means of sulphuric acid, is placed into a solution of caustic soda and cooled to about -10 DEG C. until ice crystals appear.  When thawed a clear solution is obtained.  In another example, the alkali cellulose is aged for a layer period and 40 parts of dimethyl sulphate are employed.  In a further example, 216 parts of sulphite wood boards are mercerised with or without ageing, shredded, and treated at 0--5 DEG  C. with 33 parts of dimethyl sulphite.  The product is brought into solution by twice freezing and allowing to thaw in a solution of caustic soda. Specification 374,964 is referred to.
Patent GB-1462077-A (GB)
Title: Method of treating cellulose-containing materials to impart a  flame-resistance finish thereto
IPC: C07F9/40
Filed: 1974-02-22
Abstract: 1462077 Textile treating compositions MITSUI TOATSU CHEMICALS Inc 22 Feb 1974 8926/74 Heading C3R [Also in Divisions C2 and D1] A composition for flame-proofing cellulosecontaining materials comprises a compound I where each of R 1  to R 4  is independently an alkyl haloalkyl, alkenyl or alkoxyalkyl group, preferably a methyl, isopropyl or chloroethyl group (see Division C2), and an aqueous methoxymethylol melamine solution in the presence of an acid catalyst, e.g. ammonium chloride, orthophosphoric acid or magnesium chloride hexahydrate. The composition may be applied to cotton and cured at 150‹ C. for 4 minutes.
Patent GB-1127272-A (GB)
Title: Improvements in or relating to switch actuating means
IPC: B26B7/00
Filed: 1966-02-24
Abstract: 1,127,272. Retractive switches. SCOVILL MFG. CO. 24 Feb., 1966 [2 July, 1965], No. 8299/66. Heading H1N. A switch for a power operated knife (Fig. 1) has a pair of normally open contacts 24, 37, contact 24 being mounted on a manually depressible button 16 and contact 37 being mounted on a lever 28 manually pivotable about a point 30, the arrangement being such that contacts 24, 37 can only close when both the button 16 and the lever 28 are actuated simultaneously. The button 16 is held in the switch housing by ears (21, Fig. 5). Movement of the lever 28 is limited by an arm 33 thereof engaging a fixed stop 40. Movement of the button 16 is limited by its ears (21, Fig. 5) engaging ribs (41, Fig. 5).
Patent GB-256525-A (GB)
Title: Concentric spacing and reinforcing rings for spigot and socket jointed pipes
IPC: F16L13/10
Filed: 1926-03-29
Abstract: 256,525. Wood, H. C. ivlarch 29, 1926. Spigot-and-socket joints held by cement.-The spigot and socket ends 1, 2 respectively of two pipes are concentrically spaced prior to jointing by means of a ring 3 which is adapted to be adjusted or contracted so as to fit the annular space 4 between the two pipe ends. The ring is preferably made from a length of wire looped at its ends, and is corrugated or crimped to provide spacing projections 6. The ring also serves as a reinforcement to the joint.
Patent GB-560841-A (GB)
Title: Improvements in or relating to poles or posts
IPC: E04H12/08
Filed: 1942-06-22
Abstract: 560,841. Posts. CONSTRUCTORS, Ltd., SCRIVENER, W. C., and BREWER, A. G. June 22, 1942, No. 8557. [Class 20 (i)] A post planted directly in the ground and capable of standing alone without the aid of guy ropes, and formed of sections connected together to form a non-telescopic electrically conducting unitary structure, tapers towards both ends from a point along its length. As shown the post comprises tapering tubular sections 1, 2 jointed together by spigot and socket joints, an intermediate connector 3 being disposed at the centre from which point the tapering towards the ends begins. The sections of the post when disassembled are adapted to rest within each other for ease of transport. Specifications 560,627, [Group XXX], 560,850, 560,851, 560,852,560,853 ; and 560,854, 560,855, 560,856, [all in Group I], and 560,858 are referred to.
Patent GB-326356-A (GB)
Title: Improvements in combination garments and in the manufacture thereof
IPC: A41B9/08
Filed: 1929-03-18
Abstract: 326,356. Bentley, F. March 18, 1929. Combination undergarments.-A slip-in type of garment is provided with an overlapping neck portion to allow of greater expansion when donning the garment. As shown the overlapping portions extend from the neck across the wearer's chest to the hips. From the waist to the crutch no opening is provided at the front except for male wear, when a small slot f may be provided. At the lower rear part overlapping seat parts are provided terminating in a square crotch part which is permanently closed by stitching. In the manufacture of the garment two blanks shaped as shown in Fig. 3 are taken and folded. along a line g. Each blank forms one half of the garment, the folds g being down the sides of the garment when completed. Slots k are cut for the reception of the sleeves.
Patent GB-1464673-A (GB)
Title: Assembly for connecting a current take-off unit to a plurality of bus bars
IPC: H02G5/08
Filed: 1975-03-03
Abstract: 1464673 Bus-bar connector SQUARE DE CO 3 March 1975 [8 March 1974] 8710/75 Heading H2E In an assembly for delivering current from bus-bars (10) to a current take-off unit (12, Fig. 1, not shown), pairs of jaws 16, 17 are biased by springs 21, 22 to grip a respective bus-bar, tightening of a device 25, consisting of a bolt 26 and nut 27, damping the ends 16a, 17a to the bus-bar and therefore lowering contact resistance. Each pair of jaws is located in a compartment of the insulating housing (18, Fig. 2, not shown) and is further insulated by a sleeve 31. An adapter 28, protruding through the housing (18) fits over the facetted head 26a of the bolt and has a slot 28d with a strengthening cap 30, so the tightening means may be adjusted by a screwdriver from outside the housing. Connection is made to the current take-off unit through connector 20.
Patent GB-543326-A (GB)
Title: Improvements in or relating to cleaners for sifting screens
IPC: B07B1/54
Filed: 1940-05-15
Abstract: 543,326. Sifting apparatus. SIMPSON, L. E. Mav 15, 1940, No. 8724. Convention date, May 31, 1939. [Class 117] In sieves of the kind which are kept clean by the action of balls which are supported on a grid and are caused by the movement of the sieve to bounce against its under surface, the grid is formed of a continuous sheet of metal 8 indented and pierced to form ridges 10 and valleys with narrow apertures 9. The Specification as open to inspection under Sect. 91 comprises also arrangements in which the grid is formed of bars with rounded or ridged upper sides. This subject-matter does not appear in the Specification as accepted.
Patent GB-737091-A (GB)
Title: Improvements in or relating to the preparation of polyesters and polymers thereof
IPC: C08G63/46
Filed: 1952-04-04
Abstract: Polyesters suitable for copolymerization with styrene are obtained from an a -unsaturated a ,b -dicarboxylic acid and a saturated alcohol (glycols or glycerols) by performing the condensation in the presence of a natural tannin as inhibitor and continuing the reaction until a polymer having a molecular weight of at least 4000, and, if desired, up to 30,000, is obtained. Natural tannins are defined as hydrolysable slightly polymerized pyrogallic tannins, e.g. gallnut tannin or highly polymerized pyrocatechuic tannins, e.g. tannins of oak, chestnut, quebracho and catechu.  In examples: (1) maleic anhydride and diethylene glycol and 0.1 per cent commercial tannic acid are heated at 180 DEG  C. under an inert gas until a polymer having an acid number of 1-2 is obtained; (2) maleic acid, diethylene glycol with 5 per cent excess diethylene glycol and 0.01 alcoholic tannin solution are heated to 210 DEG  C. for 6-8 hours and then at 180 DEG  C.; (3) maleic acid and sebacic acids in equal quantities with stoichiometric amounts of diethylene glycol are condensed in presence of a 0.1 per cent ether solution of tannin.  The further polymerization of the polyester or copolymerization of the polyester with styrene is effected in presence of an initiator consisting of (a) benzoyl peroxide or (b) cyclopentanone peroxide, the initiator (a) being used in conjunction with an accelerator consisting of an amine-alcohol and the initiator (b) being used in conjunction with accelerators comprising the abietates, linoleates, oleates or naphthenates of cobalt, manganese, lead, or zinc.  Fillers, e.g. ZnO, TiO2, kaolin, talc, ethyl cellulose, cellulose acetate, asbestos, alumina, carborundum or synthetic fibres may be added.  The copolymerization reaction is of the contact low-pressure type and may be effected in situ at room temperatures.  In examples: (a) 65-70 per cent high molecular weight diethylene glycol maleate and 35-30 per cent styrene are copolymerized in presence of benzoyl peroxide and diethanolamine or triethanolamine; traces of monoethanolamine have a controlling effect on the polymerization; (b) in a similar manner cyclohexanone peroxide is used with cobalt abietate.
Patent GB-287850-A (GB)
IPC: B60B9/06
Filed: 1928-03-22
Abstract: 287,850. Wieland, R. M., Wieland, A. R., Peters, R., and Oehme, M. L., (trading as Wieland, A. R. [Firm of]). March 26, 1927, [Convention date]. Stockings and socks. -To make an article with the heel pocket shown in Fig. 2, the blank is fashioned, in a continuous operation, as follows : Knitting is discontinued on the main body of needles between the points a<1> to b<1>, but the loops are not pressed off. Knitting continues on the needles between the points a to a<1> and b<1> to b, but periodically extra needles are taken into knitting at the selvedges while a corresponding number of needles are taken out of knitting starting from the points a<1> and b' and working outwards without, however, any needles losing their loops. The corner e, c' and f, b are made by a combined widening and narrcwing operation. From the points c to d onwards the foot is knitted, the loops between the points c<1> to c and d to d' having been first pressed off.
Patent GB-636207-A (GB)
Title: Improvements in or relating to the production of interpolymers
IPC: C08F222/14
Filed: 1947-04-01
Abstract: Interpolymers are made by polymerizing a mixture of monomers comprising at least 30 per cent by weight of a vinylidene halide, at least 1 per cent by weight of a diester of maleic acid, in which the ester groups are aliphatic or cycloaliphatic hydrocarbon groups, and at least 1 per cent by weight of a vinyl ester.  The ester groups specified are methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, cyclohexyl.  The vinyl esters may be vinyl bromide, chloride, fluoride, cyanide, acetate, chloracetate, propionate, butyrate or benzoate.  The halides specified for the vinylidene component are chloride, fluoride, bromide, chlorfluoride.  The polymerization may be carried out in solution, in aqueous dispersion or in bulk, in the presence of actinic radiation as well as peroxide catalysts, e.g. hydrogen peroxide, o,o1-dichlorobenzoyl peroxide, potassium persulphate, sodium perborate, benzoyl peroxide and caprylyl peroxide.  The hydrogen ion concentration in the polymerization mixture may be controlled by the addition of ammonia, or amino alcohols such as 2-amino-2-methyl-1-propanol or buffer salts, e.g. sodium bicarbonate, lead acetate and sodium phosphate.  Emulsifying agents such as gelatin, sodium oleate, potassium palmitate, sodium myristate, rosin, dehydrated rosin soaps, sodium isopropyl naphthalene sulphonate, sodium lauryl sulphate may be used.  The stability of the interpolymers to heat and light may be improved by incorporating epichlorohydrin, ethyl glycidate, the partial ester of cottonseed oil with glycerine, glycine, alanine, triethanolamine, eugenol, salicylic acid esters, diphenyl or indene resins.  The interpolymers may be plasticized with chlorobenzene, alphachloronaphthalene, benzyl and chlorobenzyl chloronaphthalenes, p-chlorophenyl ether and fillers, pigments, dyes and natural or synthetic resins may be added.  The interpolymers may be drawn into filaments or moulded.  The Specification as open to inspection under Sect. 91 comprises also copolymers of vinylidene chloride with diesters of maleic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1599789-A (GB)
Title: Thickness-width shear quartz crystal vibrator
IPC: H03H9/19
Filed: 1978-03-06
Abstract: A thickness-width shear quartz crystal vibrator, having each vibrating mode (p, q, r) respectively being (1, 1, 1), in which "p" is the number of crests of a sine wave form of polarization directed along its electrical axis, "q" is the number of crests of a cosine waveform of polarization directed along its thickness and "r" is the number of crests of cosine waveform of polarization directed along its width perpendicular to the said electrical axis. The vibrator is cut out from a Y-plate of quartz crystal at the angle between 34 to 36 degrees turned around the X-axis thereof and is provided with plural opposite electrodes on the vertical surface or the surface parallel to the y-axis thereof. Therefore, the said quartz crystal vibrator has a low equivalent impedance and also has an excellent frequency-temperature characteristic.
Patent GB-727888-A (GB)
Title: Improvements in and relating to textile materials
Inventor: HUNT RICHARD EDWIN
IPC: D06M11/38
Filed: 1950-01-17
Abstract: Textile fabrics consisting wholly or substantially of regenerated cellulose and free from substantial actual crease marks are brought into contact in open width with a swelling agent for regenerated cellulose at a concentration and temperature such that the regenerated cellulose swells without substantial damage, and the fabrics are maintained in contact with the swelling agent in open width and under as little tension as possible and without creasing until they have been rendered "crease-shedding" and "wet-crease-resisting," whereupon the fabrics are set by condensing within and substantially not between the fibres such a quantity of a thermosetting synthetic resin, or by treating with aldehyde in the presence of acid to combine therewith such a quantity of aldehyde, as is sufficient, but not more than is necessary, to give the fabric dimensional stability.  Specified swelling agents and resins are those specified in Specification 727,882 and the additional treatments described in that Specification may also be applied. Specifications 449,243, 695,703, 727,881, 727,889 and 727,890 also are referred to.
Patent GB-198652-A (GB)
IPC: B60B1/08
Filed: 1923-03-28
Abstract: 198,652. Dayton Steel Foundry Co., (Assignees of Walther, G.). May 31, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Disc wheels.-A cast metal wheel is formed with a dished hub and hollow metal spokes 1 which merge at the outer flared ends into rim members 4 which are connected at intervals by bridge-pieces 5, the central part of which is channelled. A brake flange 8 is formed at the closed inner ends of the spokes. A bearing- supporting flange 11 and an axle journal flange 10 with a self-cleaning recess 12 outwardly adjacent the bearing are also provided.
Patent GB-213940-A (GB)
IPC: C01B31/08
Filed: 1923-01-13
Abstract: 213,940. Algemeene Norit Maatschappij, (Assignees of Sauer, J. N. A.). May 26, 1922, [Convention date]. Carbon and charcoal.-Granular activated carbon, which has absorbed organic matter, is revivified by being subjected to the action of heat and activating gas while in a state of flotation in a blast of gas, the organic matter being thereby carbonized and finally consumed. The retort may be heated internally, as by injection of hot or burning gas, externally, or both, and may be horizontal or vertical. The blast may be activating gases with or without an inert gas. Gases such as chlorine or sulphur dioxide may be used to remove inorganic impurities. The Specification as open to inspection under Sect. 91 (3) (a) describes also a process in which the action of the gases is limited to the carbonization of the organic matter and the activation but not complete removal of this secondary carbon. This subject-matter does not appear in the Specification as accepted.
Patent GB-639401-A (GB)
Title: Improvements in or relating to cylindrical containers of laminated paper or the like
IPC: B65D3/10
Filed: 1947-04-02
Abstract: 639,401. Non-metallic cylindrical containers. PETERS, R. P. April 2, 1947, No. 8924. [Classes 18 and 66] A cylindrical container body has a double wall A, B, each layer comprising superposed laminations of paper &c. wound on a mandrel, the outer layer B extending beyond the inner at at least one end and, being turned inwardly over an end closure disc E of fibre-board or plywood &c. to which it may be wire-stitched as at G. The end E may be covered inside and out by paper discs H, I, and an angle-section metal end-ring J may be fitted. The inner layer A may project as shown to receive a lid K, the end disc M of which may be wirestitched and glued and paper-covered like the base. The inturned extensions F and N may be notched so as to form series of tabs. The container may be proofed with paraffin wax and the lid held on by tape or a gummed strip.
Patent GB-245322-A (GB)
Title: Improvements in transporting and feeding mechanism
IPC: B65B37/00
Filed: 1925-04-03
Abstract: 245,322. Aktiebolaget K. Fazer O. Y. Feb. 10, 1925, [Convention date]. Feeding articles by lifting from loose assemblage in bin; feeding articles by transfer devices not associated with bins, hoppers, and shoots.- Relates to apparatus for separating small objects, such as sweetmeats, from bulk, and feeding them to a wrapping-machine or for further treatment. The objects are raised from a hopper 1 by vertically reciprocating plates 2, the top edges of which are inclined away from the hopper. The plates are actuated by eccentrics 7 on the main shaft 6 so that as one is rising, the adjacent one is falling, and an object is passed gradually from the bottom to the top plate. The edges of the plates are so narrow that objects taken up crosswise fall back. After leaving the top plate, an object slides over an edge piece 8 on to a travelling steel band 5, being positioned by an angle iron 9. The objects are conducted by the band over a platform 14, Figs. 3 and 4, beneath a guard 15 and come to rest against a cross-plate 18. A slide 20 is reciprocated to force the object at right angles into a shoot 21, a bell-crank lever 23 connected at one end to the slide pushing the objects into a sloping portion 21 of the shoot, which conducts them to a wrapping-machine or on to another travelling band for further treatment. Specification 1777/76 is referred to.
Patent GB-590046-A (GB)
Title: Improvements in apparatus for the measurement of high vacua
IPC: G01L21/00
Filed: 1945-04-11
Abstract: 590,046. Determining physical qualities of materials. TOWNSEND, F. H., and CATHODEON, Ltd. April 11, 1945, Nos. 8954/45 and 11675/46. [Class 37] An apparatus for vacuum measuring comprises an ionisation gauge and a resistor which is connected in series with the gauge accelerator electrode and is so arranged that any change in emission current is compensated for by a change in either the accelerator potential or the heater current and thereby the sensitivity of the gauge is maintained constant. The ionisation gauge, which is sealed to the vacuum system under examination so that the interior of the gauge forms part thereof, comprises a triode 1 having a cathode 2, an accelerator electrode 3 and a collector electrode 4. A high positive potential is applied to the accelerator 3 and a low negative potential is applied to the collector 4. The cathode 2 is heated by a battery 8 and the electrons emitted travel to the accelerator. During their passage the electrons ionise some of the residual gas molecules present in the gauge and the positive ions thus formed travel to the collector. For a fixed value of emission current the magnitude of the ion current flowing through a microammeter 10 is proportional to the gas pressure in the gauge. A resistor 5 is inserted in the accelerator circuit so that if the emission current changes, due to the gas content of the gauge changing, the voltage drop across the resistor changes and thus the potential applied to the accelerator rises or falls accordingly and thereby the gauge sensitivity is maintained constant. In a modification the accelerator electrode 3 and the cathode 2 are connected to the opposite ends of the primary winding of a transformer, supplying the cathode heater which is connected in series with the resistor 5 across an alternating current supply. If the emission current changes then the voltage across the resistor changes and consequently the heater voltage changes accordingly, the cathode emission thus reverts to original value and the gauge sensitivity is maintained constant.
Patent GB-915792-A (GB)
Title: Multiple glass sheet glazing units
Inventor: RYAN JOSEPH DENNIS
IPC: E06B3/66
Filed: 1961-03-11
Abstract: 915,792. Double glazing. LIBBEY-OWENSFORD GLASS CO. March 11, 1961, No. 8982/61. Class 20 (3). In a multi-glass-sheet glazing unit with an internal air-tight space and an external channel 17 formed by spacers 14 between adjacent sheets 11, 12 a support strip 23 of inert resilient polyethylene is provided around the outer peripheral edges of the sheets 11, 12, and carries air-filled tubular portions 26 which are received in the channel 17 to absorb any pressure built up by the freezing of moisture in the channel, the strip 23 being held in place by a metal channel strip 21 fitting over the edge portions of the sheets 11, 12 and secured thereto by adhesive 22 of high molecular weight organic polymer clay composition.