baber/WOPTO huggingface dataset:
Patent GB-1310427-A (GB)
Title: Calcination of gypsum
IPC: C04B11/036
Filed: 1970-08-05
Abstract: 1310427 Calcining gypsum RHEINSTAHL AG 5 Aug 1970 [6 Aug 1969] 37750/70 Heading C1A In a process for calcining gypsum in a hot gas stream in one or more centrifugal separators in a calcining installation, the temperature of the entering hot gas stream containing gypsum is so adjusted that it is from 1À1 to 2À6 times the discharge temperature of the calcined gypsum, the residence time of the gypsum is regulatable and the relative moisture content of the hot gas stream is regulatable in relation to the operating temperature. The gypsum may be pre-heated or dried at a temperature below the dissociation temperature for the formation of the gypsum phase required, e.g. at 90 C. for #-hemihydrate or 150 C. for anhydrite-III The hot gas stream may have added thereto a hygroscopic substance for example CaCl 2 , MgCl 2 , P 2 O 5 , NaOH, KOH or Ca(OH) 2  in a dry or dissolved form. The relative humidity of the hot gas stream may be 40-95%.
Patent GB-1117878-A (GB)
Title: Static relay
IPC: H03K17/72
Filed: 1966-08-24
Abstract: 1,117,878. Transistor switching circuits. VAPOR CORP. 24 Aug., 1966 [3 Jan., 1966], No. 37934/66. Heading H3T. A circuit 13 for performing switching operations in, for example, tele-type applications, comprises an oscillator 31 energized by input signals applied at 25, 27 and producing relatively high frequency (at least about 50 Mc/s) output signals in response thereto, a transistor 83 rendered conductive in response to the input signal, and an S.C.R. 87 in series with transistor 83 and rendered conductive a predetermined time after initiation of the input signal and rendered non-conductive a predetermined time after cessation of the input signal, so that during conduction of the S.C.R. 87 a path is completed between output terminals 17, 19. The oscillator is coupled to the input through a filter 41, 43, 45, 47 to prevent the high frequency oscillations affecting the input source. The signals produced in secondary 71 of transformer 63 are rectified at 73 and passed through a filter 77, 79, 81 to render transistor 83 conductive, and are also rectified at 91 and passed through a filter 95, 97, 99 to the gate of S.C.R. 87. The S.C.R. 87 does not conduct until capacitor 99 becomes sufficiently charged. On cessation of the input signal, transistor 83 cuts off immediately, causing the cathode potential of the S.C.R. to rise towards that of the anode. During this rise the anode-cathode current diverts to the gate of the S.C.R. and flows through resistor 100. The potential of the gate is limited by Zener 109. As the cathode potential of the S.C.R. continues to rise it becomes sufficiently positive with respect to the gate to cause the S.C.R. to out-off. This switch-off delay of the S.C.R. is made equal to the switch on delay. A diode bridge 103 ensures completion of the output circuit on conduction of the S.C.R. independently of the polarity of terminals 17, 19. A steady D.C. applied to terminals 25a, 27a of an identical circuit 13a produces a signal in windng 111a of transformer 63a, which signal is rectified at 113a and applied between the base and emitter of the transistor 83 of circuit 13 to reverse bias that transistor, so that an input signal to circuit 13 must exceed a level determined by this reverse bias before the switch operates. Circuits 13, 13a may be combined to produce a polar relay by connection of terminal 27 to 25a and of 19 to 17a and applying the input to terminals 25 and 27a. With an input of a first polarity, one circuit is rendered conductive whilst the other is inhibited by the signal from the tertiary winding of the one circuit, whilst with an input of the second polarity, the one circuit is inhibited and the other conducts.
Patent GB-1386954-A (GB)
Title: Winding fibres
IPC: B65H51/015
Filed: 1971-08-13
Abstract: 1386954 Winding multiple filaments FIBREGLASS LTD 7 Aug 1972 [13 Aug 1971] 38121/71 Headings DID and D1J An apparatus for winding multiple filaments of e.g. glass from a source S has fixed guides A which collect the filaments into at least two strands and secondary guides B arranged to reciprocate together with the traverse guide 4. 4 is a butterfly guide and is arranged to traverse as well as rotate. The spacing of guides B from guide 4 is adjustable and may be effected by a pneumatic cylinder or bellows, Figs. 5 and 8 respectively (not shown). The movable guides may be on a swingable arm, Figs. 4 and 5 (not shown). Guides A and B may each comprise a guide shoe as illustrated in Fig. 6
Patent GB-945266-A (GB)
Title: Apparatus for depositing a dough batter
IPC: A21C5/00
Filed: 1961-10-25
Abstract: 945,266. Dough depositing apparatus. NATIONAL BISCUIT CO. Oct. 25, 1961 [Nov. 15, 1960], No. 38185/61. Heading A2A. [Also in Division B5] In an apparatus for depositing slugs 60 of dough, batter of uniform volume in symmetrical rows on an endless oven band 61 a depositing head 27 is supported and centred thereover by a transversely movable frame 10 and is supplied with dough under constant pressure through a flexible pipe (not shown) connected to the head by a T inletpipe 30, 31 (Fig. 1). The chamber of the head 27 is divided into two compartments 35, 36 (Fig. 4) by a partition wall 37 and this wall and the lower wall 43 of the chamber have rows of apertures 38, 42 through which the dough is forced, the circular discharge apertures 42 being alternately shut off and opened by a pair of superposed reciprocating shear plates 51, 52 (Fig. 6) sliding in a groove 58 under the wall and having preferably elliptical apertures 53, 54 which are aligned in one of the two reciprocable positions to allow dough to be forced through the apertures 42 and fall on to the band 61, movement of which is synchronized with that of the shear blades. In order to maintain the dough pressure throughout the lower compartment 36 substantially uniform adjustable valve plug members are associated with each of the apertures 38 and further adjustable plug members 50 are associated with the apertures 42 to maintain the flow of dough through each such aperture the same. The valve plug members may be adjusted while the apparatus is in operation. Reciprocation of the blades 51, 52 is effected by rack and pinion gears in a housing 70 bolted to the frame 10, the pinion shaft 75 having a rocker arm 77 operated by a shaft 78 linked as shown (Fig. ) to a variable speed motor 84.
Patent GB-1300610-A (GB)
Title: Production of carbon fibres
IPC: D01F9/22
Filed: 1970-08-07
Abstract: 1300610 Carbon fibres KANEGAFUCHI BOSEKI KK 7 Aug 1970 [7 Aug 1969 30 Sept 1969(2)] 38240/70 Heading C1A Carbon fibres, which expression includes partially pyrolysed fibrous materials which are capable of further carbonization, are produced by conjugate spinning a pitch and a synthetic organic polymer in a conjugate weight ratio of pitch to synthetic polymer of from 1 : 1 to 10 : 1 to form a conjugate fibre in which the two components are bonded along the length of the fibre, reacting the conjugate fibre with an oxidizing agent, and then heating the oxidized fibre in air or an inert gas, e.g. nitrogen, at a temp. of 200-500‹ C. for at least 2 hours, to produce the desired fibre. The fibre may be further carbonized by heating in an inert gas at a temp. of 800‹ to 3500‹ C. to produce a carbon fibre or if the temp. is sufficiently high a graphite fibre. The preferred carbonization temperature is 800-1800‹ C., and the fibre may then be graphitized at from 2000 3500‹ C. The fibre may be carbonized over a period of time of from 10 mins. to 10 hours. The pitch used may be petroleum ashphalt, coal-tar pitch, residual oil from petroleum distillation, or a polyvinyl chloride pitch. The synthetic organic polymer used may be a thermoplastic polymer, e.g. a polyamide, a polyester, a polyester ether, a polyolefin, polyvinyl chloride, polyvinylidene chloride, a polyurethane or an acrylic polymer. Alternatively the synthetic organic polymer may be a thermosetting polymer, e.g. an epoxy resin, or a phenolic resin. The fibre may be of a sheath-core type with pitch being either the sheath or the core or the fibres may be spun in a side by side relationship. The oxidation step may be performed in the gaseous or the aqueous phase, using for the first, oxygen, air, or ozone and for the second, H 2 O 2 , a hypochlorite, a dichromate, a permanganate, e.g. of Ma, K, Ca or Ba, benzoyl peroxide or cumene peroxide. If H 2 O 2  solution is used it may contain a salt of Mn, Fe, Cu or Ni, together with an organic or inorganic acid e.g. HCl, H 2 SO 4  acetic or oxalic acid. The solution may contain 1-30% by wt. of H 2 O 2  and 0À05 mg. to 5 gm. of the added salt, the pH of the solution being from 1 to 13. The aqueous soln. may contain a surfactant and the oxidation be performed at 0-90‹ C. After the oxidation in the liquid phase the fibre may be oxidized in air at less than 260‹ C. If desired the fibre may be coated with liquid oxidant and then heated in air.
Patent GB-327159-A (GB)
IPC: D06M15/17
Filed: 1928-12-28
Abstract: 327,159. Rommel, Weiss, et Cie Akt.- Ges. Oct. 6, 1928, [Convention date]. Imitation paper fabrics woven from thick yarns flattened in a subsequent operation. - A fabric simulating Japanese paper fabrics is woven with patterns from special thick cotton or other vegetable fibre threads impregnated with wax, paraffin or the like and lustred by means of heated rollers (1) the fabric is then passed between heated rollers, whereby the warp and weft threads are flattened. The fabric may be used for hats, handbags, shoes, belts, and wall coverings.
Patent GB-822599-A (GB)
Title: Improvements in or relating to bearing units for the spindles of spinning and twisting frames
IPC: D01H7/04
Filed: 1957-12-10
Abstract: 822,599. Bearings. SKF. KUGELLAGERFABRIKEN G.m.b.H. Dec. 10, 1957 [Jan. 23, 1957], No. 38399/57. Addition to 738,156. Class 12 (1). A bearing unit for the spindle 5 of a spinning and twisting frame, of the kind described in the parent Specification, comprising a rolling neck bearing 3 mounted in an insert 2 in the upper end of a bolster 1, a centring sleeve 4 which carries the spindle foot-step bearing, not shown, and has a helical slot 7 in its upper end which is engaged with a press fit in the insert 2, and a damping means 10 between the bolster 1 and the sleeve 2, is characterized in that the upper end 8 of the sleeve 2 adjacent the helical slot 7 has a greater wall thickness.
Patent GB-1118935-A (GB)
Title: Electric motor
IPC: H02K11/00
Filed: 1965-09-08
Abstract: 1,118,935. Dynamo - electric machines. RADIO CORPORATION OF AMERICA 8 Sept., 1965 [30 Sept., 1964], No. 38483/65. Heading H2A. [Also in Divisions H1 and H3] A combined shaded-pole motor and transformer, particularly for use in a tape recorder or record player, has an extra stator winding feeding a rectifier for the electronic amplifier and an extra closed magnetic circuit to carry the unidirectional flux componentcaused by the rectification.
Patent GB-1151646-A (GB)
Title: Measuring Instrument
IPC: G01B3/11
Filed: 1967-08-22
Abstract: 1,151,646. Measuring linear movement. METROMATION Inc. 22 Aug., 1967 [24 Aug., 1966], No. 38532/67. Heading G4H. Apparatus for measuring the linear movement of, e.g. a machine tool includes an elongated member, e.g. a cord or tape 30 (Fig. 1), which is wrapped around a wheel 22 in a housing 10, one end of it being attached to the machine tool, so that as the cord or tape 30 is moved with the machine tool the wheel 22 rotates, electrical signals being generated by a converter 12 mechanically coupled to the wheel 22 and being fed to a display 18 which may comprise Nixie tubes. In one embodiment the wheel 22 comprises an exactly round central element to which are connected two larger side discs which retain the cord or tape on the periphery of the central element. Alternatively, the wheel may comprise a two-part drum and a rim, the parts of the drum being screwed together. Adjustment of the screws results in distortion of the drum so that the rim takes on the degree of the roundness required for critical calibration. The apparatus may be kept at a temperature higher than that normally encountered by the machine tool so that the diameter of the wheel is not affected by varying temperatures.
Patent GB-1210224-A (GB)
Title: Process for producing an article, and an article produced by the process
Inventor: KNAPP FRANZ
IPC: H01B3/40
Filed: 1967-08-22
Abstract: 1,210,224. Coated bodies. BROWN, BOVERI & CO. Ltd. 22 Aug., 1967 [24 Aug., 1966], No. 38546/67. Heading B2E. [Also in Division D1] A pore-free, cured resin-impregnated body is produced by (a) impregnating the porous body with a solution of a curing agent which is a composition which comprises a compound capable of reacting with the thermosetting resin used in stage (c) to cross-link and thermoset the latter and may include a catalyst to assist cross-linking, the solution containing a quantity of a thermosetting resin which may be the same or different from the resin used in stage (c) below in an amount greater than zero yet small enough to have substantially no limiting effect on the useful life of the solution, (b) evaporating the curing agent solvent from the porous body to provide a substantially uniform distribution of curing agent throughout the pores of the body, (c) impregnating the porous body with a liquid, solvent-free, thermosetting resin, and (d) curing the thermosetting resin in the porous body to form a pore-free, cured resinimpregnated body. Prior to step (a), the porous body may be impregnated with a solvent for the curing agent and the solvent evaporated from the porous body; the solvent may be that subsequently used in step (a). The thermosetting resin may be an epoxycycloaliphatic acetal or epoxydicyclopentadiene. The curing agent may be p-p'-methylenedianiline and broron tri-fluoride complex with an aliphatic amine; the solvent may be methanol. The viscosity of the specified resin used for step (c) may be a maximum of from 100 to 1000 cp at the temperature used for step (c). The body may be paper, woven fabric, spun glass with a mica insert, mica fleece strips for electrical insulation, plates, tubes, bodywork and machine parts, gear wheels made of fabric or fibres.
Patent GB-358818-A (GB)
Title: Improvements in or relating to combined cocks and meters
IPC: G01F13/00
Filed: 1930-12-23
Abstract: 358,818. Combined cocks and meters. WIRTHENSOHN, F., 76, Burgberg, Schwaben, Germany. Dec. 23, 1930, No. 38712. [Class 1.35.] A combined draw-off beer cock and meter for indicating the total quantity of flow comprises a turbine rotor 6 and a helical guide channel 7 in the plug 2 to guide the fluid to the rotor. The guide channel 7 has the full height of cross section at the inlet 8 and gradually becomes lower and dies away over the rotor in about one turn; the passages are so shaped that a zone of lower pressure is formed at 20 thereby preventing liquid from rising to the meter. The liquid issues through vertical guide ribs, and a stop piece 14 in the outlet prevents tampering by wires from below. A brake is provided for the spindle 5 of the turbine consisting of a radial pin normally held out of action by a coaxial spring but pressed in upon the spindle by a cam-like spring in the shut-off position of the cock. A vent hole of adjustable cross section is provided in the casing for regulating the air required for the effective discharge of the beer.
Patent GB-831700-A (GB)
Title: Fluid valve mechanism for controlling operations of a signalling device
IPC: F16K31/56
Filed: 1957-12-13
Abstract: 831,700. Valves. FALCON ALARM CO. Inc. Dec. 13, 1957 [Dec. 24, 19561, No. 38858/57. Class 135. A valve suitable for attachment to a gas pressure cylinder 10 to control the operation of a signalling device such a diaphragm type horn connected to an outlet 31 consists of a valve seating disc 20 clamped between housing parts 11, 12 which are screwed together and a movable closure member 18 urged by a spring 23 into engagement with the seating. The closure member is made of a resilient material such as nylon and has a coned end 19 to coact with a correspondingly-shaped recess 22 in the seating disc 20. An actuating pin 26 carrying an extension 27 which passes through the seating disc to engage the closure member is urged away from the latter by a spring 28 and is actuated by a cam formed on a lever 33 which is pivoted at 34. The lever 33 may be actuated by a simple linkage or it may form part of a spring toggle mechanism. The lower part 12 of the housing is provided with a connection 16 for a pressure gauge. Specification 810,540 is referred to.
Patent GB-1431364-A (GB)
Title: Polyamides with free secondary amino groups
IPC: D01F6/80
Filed: 1974-09-06
Abstract: 1431364 Isophthalic acid derivatives BAYER AG 6 Sept 1974 [12 Sept 1973] 39007/74 Heading C2C [Also in Division C3] Dimethyl 5 - methylamino - isophthalate is made by hydrogenating dimethyl 5-amino-isophthalate in dioxane in the presence of a methanolic HCHO solution and of Raney Ni, at 110 C. and 60-100 atmospheres. The corresponding 5-isobutylamino-, 5-cyclohexylamino- and 5-isopropylamino compounds are prepared analogously. Dimethyl - 5 - n - butylamino - isophthalate is made by hydrogenating dimethyl 5-nitroisophthalate and n-butanol in methanol and CH 3 COOH using Raney Ni at 50-60 C. and 40-60 atmospheres. The corresponding 5-npropylamino and 5-cyclohexylamino compounds are prepared analogously. 5 - Isopropylamino - isophthalic acid is made by adding glacial CH 3 COOH to 5- amino-isophthalic acid dihydrate and acetone in methanol, and hydrogenating using Raney Ni at 100-110 C. at 60 atmospheres. 5-Isobutylamino-isophthalic acid is prepared analogously.
Patent GB-1121124-A (GB)
Title: Anti-corrosive coating composition
Inventor: GIBSON GEOFFREY MOORHOUSE
IPC: C09D5/08
Filed: 1964-09-24
Abstract: Paint compositions for use on metals, stated to be highly adherent and anti-corrosive, contain a dichromate of an organic base.  In examples, a specified paint composition contains " Epok 1060/75 " resin, iron oxide, talc, CaCo3, blanc fixe, white spirit, dipentene, xylene, solutions of Pb and Co naphthenates, and a dichromate of one of the following bases: N,N1,N11-triphenylguanidine, alpha - naphthylbiguanide, benzoguanamine or 2,4,6-trianilino-s-triazine.ALSO:Paint compositions for use on metals stated to be highly adherent and anti-corrosive, contain a dichromate of an organic base, of which a large number are described in the specification.ALSO:The invention comprises the dichromates of certain classes of acyclic and cyclic amidines and guanidines; primary, secondary, tertiary and quaternary aliphatic or cycloaliphatic amine bases; quaternary phosphonium hydroxides and tertiary sulphonium hydroxides.
Patent GB-835349-A (GB)
Title: An improved closure device
Inventor: FERNBERG ERIC BIRGER
IPC: F16J13/14
Filed: 1957-12-17
Abstract: 835,349. Access plates. F. T. PRODUCTS Ltd. Dec. 12, 1958 [Dec. 17, 1957], No. 39216/57. Class 107 [Also in Group XXVIII] A circular closure for the walls of a pipe or an opening in a plane surface comprises a resilient bowed plate with two opposite spring arms 15, 16 formed by deforming parts of the plate.
Patent GB-1045194-A (GB)
Title: Method of fermentation of wort
IPC: C12C11/06
Filed: 1964-09-25
Abstract: In the fermentation of brewers' wort having a pH value of at least 4.9 (preferably 5.2) at the completion of conversion of the starch to fermentable carbohydrate wherein the wort is yeasted at a rate of at least 10 grams per litre (preferably at least 25 grams per litre), the amount of vicinal diketones such as di-acetyl present at the end of fermentation is reduced to an acceptable level i.e. less than 0.2 p.p.m, by the addition of an acidulant before the gravity reaches 3.8 DEG  Balling, to reduce the pH to within the range 3.1-3.8 (preferably 3.2) at the end of fermentation as indicated by a gravity of between 2.2 and 2.6 DEG  Balling.  The acidification may take place at any time after the completion of conversion of the starch to fermentable carbohydrate, provided it is made sufficiently before the end of the fermentation of the wort to achieve the desired effect. Phosphoric, citric, hydrochloric, lactic, tartaric, sulphuric and nitric acids may be employed.
Patent GB-1283140-A (GB)
Title: Process for the production of shaped articles from acrylonitrile polymers
Inventor: GROBE VOLKER
IPC: C08F20/44
Filed: 1970-08-14
Abstract: 1283140 Polyacrylonitrile films and filaments CHEMIEFASERKOMBINAT SCHWARZA "WILHELM PIECK" VEB 14 Aug 1970 39244/70 Heading B5B [Also in Division C3] Shaped articles such as filaments, fibres and films of polymers containing at least 80% by weight of acrylonitrile units are obtained by polymerizing the corresponding monomer or monomers in the presence, as plasticizer, of dimethylformamide and then melt spinning the polymer product. The acrylonitrile may be copolymerized with acrylate or sulphonate monomers. In Example 1 filaments are obtained by feeding the plasticized polymer into an extruder whose compression screw has a compression ratio of 1 : 2À5. At a cylinder temperature of 140‹ C. and a spinning head temperature of 150‹ C. the mast is forced through a 25-hole nozzle (each hole being 0À4 mm. in diameter) at an extrusion rate of 14 g./min. The filaments are withdrawn at a rate of 160 m./min. and then stretched 10-fold in hot water. The filaments have an individual titre of 3 den., a break strength of 3À21 g./den. and a break elongation of 32%. Examples 2-4 are conducted somewhat similarly to Example 1. In Example 5 the extruder head carries a slit nozzle instead of a spinning nozzle; a transparent film is thereby produced.
Patent GB-903646-A (GB)
Title: Improvements in and relating to flexible fabric or other sheeting and reinforcementstherefor
Inventor: ARMSTRONG EILEEN
IPC: B29C65/00
Filed: 1959-11-19
Abstract: 903,646. Reinforcing edges of non-metallic sheet material; groundsheets. EASTWOOD PLASTICS Ltd. Oct. 13, 1960 [Nov. 19, 1959], No. 39274/59. Classes 42 (1) and 140. A flexible sheeting of a synthetic resin, e.g. polyvinylchloride, or of a fabric coated or treated with a synthetic resin, has areas reinforced to take the force of a strainer rope, or equivalent, attached thereto, said reinforcement comprising a metal plate which has a coating of a synthetic resin which may be welded to the sheeting, the plate being welded to the sheeting, for example by high-frequency welding, and the reinforced area being furnished with an eye through, or carried by, the metal sheet for the reception of the strainer rope or the like. Figs. 1 and 2 illustrate the edge of a sheet reinforced and eyeletted with metal eyelet 5 and washers 6. Fig. 3 illustrates a sheet reinforced on both sides with synthetic resin coated metal and eyeletted. In all these Figures the flexible sheeting is indicated at 1, the metal reinforcement by 3, and the synthetic resin coating which is welded to the sheeting by 2. Fig. 4 illustrates another embodiment wherein there is secured to the sheeting 1 a synthetic resin-coated metal plate 7 having a securing eye 8.