baber/WOPTO huggingface dataset:
Patent GB-1104765-A (GB)
Title: Feeding apparatus for cutting up textile or like sheets
Inventor: BASCOMBE HEWITT JOHN
IPC: B26D7/06
Filed: 1965-08-20
Abstract: 1,104,765. Cutting-out presses. STAFFORD TOOL & DIE CO. Ltd. 18 May, 1966 [20 Aug., 1965], No. 35802/65. Heading B4B. [Also in Division D1] A textile-cutting press 21, 22 has feeding apparatus oomprising a cutting table 17 which is movable over a roller conveyer into and out of the press by one or more conveyer chains 14 and to a retracted position beneath a main table 11 supporting the material to be cut, a clamp 13 at the leading end of the cutting table for attaching the ends of the material to be cut on to the cutting table and a latch 19, Fig. 3 (not shown), at the rear end of the cutting table for locking the two tables -together after the pile of material has been drawn on to the cutting table and for moving the main table rearwardly again together with the cutting table as the latter is withdrawn from the press, the latch being disengaged at the same point as it was engaged so as to allow the cutting table to pass beneath the main table again. The material may be drawn over the main table from rolls mounted in a trolley 26 which can follow the movements of the main table. A cutter may be positioned at the leading end of the main table to cut-off the material at the required length after it has been transferred from the main table to the cutting table. Forme cutters (20) are placed on the pile of material which is fed in stages through the press. The surface of the cutting table may be made of rubber for receiving the cutting edges of the formes. A cutter may be provided for severing the cut portion from the remainder of the pile. The main table may be mounted on a trolley instead of on a roller conveyer. In another arrangement, a pile of material to be cut may be built-up on the main table from an overhead trolley traversing the length of the table. Alternatively, the material may be laid on to side-tables (23), Fig. 2 (not shown), and pushed across on to the main table when required. When the pile is too heavy to handle it may be laid above the main table on slots (25), Fig. 4 (not shown), which can be removed one at a time to lower the pile on to the main table.
Patent GB-1432707-A (GB)
Title: Anhydrous amorphous siliceous material derived from organic plant material its process of preparation and compositions containing same
IPC: C01B33/18
Filed: 1973-07-27
Abstract: 1432707 Amorphous silica from plant material; cement compositions UNIVERSITY OF CALIFORNIA REGENTS OF 27 July 1973 [28 July 1972] 35827/73 Headings C1A and C1H [Also in Division C3] An anhydrous amorphous siliceous material, suitable for use as a filler and for making cements, is derived from organic plant material, which has a silica content of up to 28% by wt., and comprises 49-98% by wt. silica, the balance being mainly carbon (at least 0À3% by wt.) and non-volatile inorganic constituents (1-5% by wt. other than CaO) of the plant material, the siliceous material being characterized by the complete absence of crystalline silica as determined by X-ray diffraction. The siliceous material is prepared by, for example, heating rice hulls or straws in a furnace at 1050-1100‹ F. for up to 66 hours. Cement compositions having good setting properties and high ultimate strength, can be made using added CaO and/or portland cement.
Patent GB-900270-A (GB)
Title: An apparatus for yarn twisting, and the products obtained thereby
IPC: D01H1/00
Filed: 1959-10-22
Abstract: 900,270. Twisting yarn. ONDERZOEKING- SINSTITUUT RESEARCH N.V. Oct. 22, 1959 [Oct. 23, 1958], No. 35875/59. Classes 120 (2) and 120 (3). Apparatus for twisting yarn from a crosswound bobbin which has been wound at a traversing ratio of between 6.0 and 6.3 revolutions of the bobbin per reciprocatory stroke of the yarn up and down the bobbin, comprises an uptwisting spindle 2 for the bobbin, a potshaped member 13 which is mounted for rotation about the spindle and in the manner of a cap covering a bobbin on the spindle, at least one thread guiding eyelet 15 attached to the rim of the pot-shaped member and being positioned to be substantially opposite the midpoint of a bobbin on the spindle and means 17, 18, 19 for drawing off the yarn from the bobbin through the eyelet. The balloon may be restricted by an eyelet 16 mounted at the level of the top of the bobbin. The eyelets are preferably made of material of high thermal conductivity such as stainless steel. Several uptwisters may feed yarn to a ring spinning spindle to produce a cord. The pot 13 is rotatably carried on a spigot 10 with leaf springs 11 gripping a bore in the spindle 2 and is braked by felt rings 14.
Patent GB-1356171-A (GB)
Title: Method of casting ingots and a machine for carrying out the method
IPC: B22D5/02
Filed: 1971-07-30
Abstract: 1356171 Ingot casting machines; casting processes GRANGES ENG AB 30 July 1971 35896/71 Heading B3F Ingot moulds 5 are mounted on an intermittently rotating turntable and are poured with their big ends up from a ladle at a station 10. Stationary guide bars 9 force the moulds into a horizontal position after pouring as they rotate clockwise around the turntable. During this time, a solid crust forms over the top of the molten metal and a shrinkage cavity begins to form beneath the crust. The moulds are stopped in the horizontal position and then inverted so that molten core metal in the ingots runs into the shrinkage pipe leaving voids at the bases of the ingots which will weld up on rolling as they are not exposed to air. The ingots fall partially out of the moulds against a stationary stop member 16 and are delivered to a conveyer 18.
Patent GB-1003319-A (GB)
Title: Improvements in or relating to balanced amplifiers
IPC: H03F3/72
Filed: 1961-10-05
Abstract: 1.003,319. Transistor amplifiers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 5, 1961 [Oct. 8, 1960], No. 35898/61. Heading H3T. A sampling amplifier for use with a transducer 4 comprises transistors 1, 2 having a common emitter resistor 3 connected to the slider of a potentiometer S connected between the emitters, a symmetrical load circuit comprising a transformer 8 connected between the collectors of the transistors and a further potentiometer 9 connected between the bases of the transistors with the slider of the potentiometer 9 connected to the symmetrical point of the load circuit. The circuit is energized by positive pulses applied to terminal 6, terminal 7, constituting the symmetrical point of the load, being connected to a point of negative potential. The circuit is balanced by first adjusting the slider of potentiometer 5 to give zero output with the bases connected directly together through a short-circuiting conductor output and then likewise adjusting potentiometer 9 with the transducer 4 disconnected from the input leads, this latter adjustment compensating for any asymmetry with respect to earth of the input leads. A further potentiometer 12 together with positive-temperature-coefficient emitter resistors 10, 11 provides temperature compensation, the circuit being cycled between upper and lower temperatures and the potentiometers being adjusted at each temperature until a condition is reached in which the settings for zero output are independent of temperature. Specification 899,407 is referred to.
Patent GB-876524-A (GB)
Title: Method of filming glass surfaces
IPC: C03C17/00
Filed: 1958-11-10
Abstract: A graded transparent electrically conducting film is produced on a glass sheet by heating the sheet to substantially the softening point of the glass and directing a spray of a filming solution on to a major surface of the heated sheet, a portion of the spray along the centre line thereof being directed at right angles, or substantially so, on to the surface where the greatest film thickness is desired, the spray solution spreading out over adjacent areas of the surface to form a coating of progressively reduced thickness, means being provided for causing relative movement between the sheet and the spray through a definite path during the filming.  The filming solution may be an alcoholic solution of tin chloride.  The glass sheet may be provided with fired-on silver electrodes to enable the coating to be used as a heating device for de-icing windows or windscreens.
Patent GB-174841-A (GB)
Title: Improvements in and relating to apparatus for delivering measured quantities of liquids, particularly the more volatile oils
IPC: B67D7/16
Filed: 1920-12-24
Abstract: 174,841. Bywater, D. Dec. 24, 1920. Fixed chamber apparatus; controlling passage of air and gases for; valve systems for. -In apparatus of the type comprising two closed containers each with inlet and outlet valves, and a cross-connecting pipe with float - controlled a i r valves, means are provided for allowing lost motion in the links operating the valves. The stems l, n and m, o of spring closed inlet and cutlet valves of each container are, by pin and slot joints, connected by levers r, s, to a pivoted control handle t, so that there is a neutral position in which all the valves are closed, and the valves of one container cannot be open simultaneously.
Patent GB-343611-A (GB)
Title: Improvements relating to automatic telephone systems
IPC: H04Q3/42
Filed: 1929-11-27
Abstract: 343,611. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and PETERS, C. L., 21, Croft Villas, Green Lane, Eltham, both in London. Nov. 27, 1929, No. 36330. Drawings to Specification. [Class 40 (iv).] A trunk offering operator, but not a subscriber, is enabled to use an ordinary connector for breaking- in by dialling an extra digit which in the case of party lines selects the ringing code but otherwise may have any value. The invention is described with reference to a system identical with that described in Specification 343,978 in which the connectors employ common control circuits. Specification 343,674 also is referred to.
Patent GB-1005905-A (GB)
Title: A new or improved trolley
Inventor: RYAN THOMAS JAMES
IPC: B62B5/00
Filed: 1963-09-17
Abstract: 1,005,905. Trolleys. PAKSONS, CLIVE & CO. Ltd. Sept. 4, 1964 [Sept. 17, 1963], No. 36472/63. Heading B7B. A trolley comprises a tubular frame 10 having a guard rail 18 at an end adjacent the caster 16 and a wheel frame 23, 26, 27, pivoted at 21 to the frame 10 so that it may be moved from its position shown where it is held by the releasable stay 29 to a position adjacent the underside of the frame 10 where it is held by the clip 36. Specification 916,371 is referred to.
Patent GB-1136699-A (GB)
Title: Electrolytic polymerization of aromatic compounds
Inventor: WALKER DAVID GEORGE
IPC: C25B3/29
Filed: 1967-08-09
Abstract: 1,136,699. Polycyclic aromatic hydrocarbons. ESSO RESEARCH & ENG. CO. 9 Aug., 1967, No. 36513/67. Heading C5E. [Also in Divison C7] Polymeric aromatic compounds are prepared by electrolysing a solution comprising a C 6 - C 20  aromatic compound and a ternary complex having the formula R : HX : 2AlX 3  wherein R is a C 6 -C 20  aromatic compound at least as basic as the aromatic compound to be polymerized and X is Cl or Br. The aromatic compound to be polymerized may be benzene, biphenyl, naphthalene, an alkyl, e.g. methyl substituted benzene, a naphthalene, or a biphenyl; thus R may be the same or more basic, e.g. benzene, biphenyl, toluene, xylene, pseudocumene, hemimellitene, (iso)durene, mesitylene, prehnitene, pentamethylbenzene, hexamethylbenzene, isopropyl benzene, (1,3,5-dimethyl)- ethylbenzene, ethyl toluene or (di)methylnaphthalene. Many polymeric products are specified including p-poly- or sexi-phenyl (C 36 H 26 ). The electrolysis cell may be divided by a diffusion hindering membrane, e.g. of fritted or sintered glass, asbestos, porous ceramics or plastics, paper or perforated metal, wherein the ternary complex is preferably employed only in the anode compartment. A Ptgroup metal or Ta anode, and a Pt-group metal, Al, Cu, Hg, W, Ti, Zr, Hf, Ta, ferrous metal or C cathode may be used.
Patent GB-1417666-A (GB)
Title: Process for the production of o-ethylphenol
IPC: C07C37/16
Filed: 1974-08-20
Abstract: 1417666 Production of o-ethylphenol RUTGERSWERKE AG 20 Aug 1974 [15 Sept 1973] 36516/74 Heading C2C o-Ethylphenol is obtained by the gasphase alkylation of phenol with ethanol in the presence of an Al 2 O 3  catalyst and at a temperature of from 290 to 340 C., said ethanol having a water content of from 2 to 6% by weight and the molar ratio of phenol : ethanol being 1 : 0À15 to 1 : 0À45.
Patent GB-776382-A (GB)
Title: An improved bag and method of making same
Inventor: DAVIES KENNETH KNAPTON
IPC: B65D30/20
Filed: 1954-12-17
Abstract: 776,382. Paper &c. bags. METAL BOX CO., Ltd. Sept. 1, 1955 [Dec, 17, 1954], No. 36656/54. Class 94(2). A gussetted bag of paper, aluminium foil &c. has on the inside a coating of thermoplastic material e.g. polyethylene and apertures 3 are formed in one side 10 of each gusset so that when the end of the bag is closed by heat sealing the end portions of the two sides 7, 8 are heatsealed one to the other and to the coated gusset portions facing the respective sides, and one portion 9 of each gusset is secured to the side end portion 8 through the apertures 3. The apertures 3 are punched in the flat coated web which is then formed into a tube and sealed longitudinally at 5. The coating can extend beyond the web at one longitudinal edge and be sealed to the other edge. The gussets 9, 10 are then formed, with the apertures located in the gussets 10, and heat sealed at 11 after which the bag length is severed. Further lines of heat sealing 14, 15 facilitate the formation of a block bottom.
Patent GB-1107363-A (GB)
Title: A process for the purification of sulphur hexafluoride
Inventor: WILLIAMS JOHN AMES
IPC: C01B17/45
Filed: 1963-09-19
Abstract: Sulphur hexafluoride gas contaminated with air is pumped by cooling the gas to from - 64 DEG  C. to - 210 DEG  C. to solidify it, separating the solid from the remaining gaseous and/or liquid materials and thereafter converting it to the gaseous form in a substantially air-free environment. The process is preferably conducted by passing the contaminated gas through a closed, heat conducting purification vessel which is partially or completely immersed in a coolant fluid (liquid oxygen or a mixture of solid CO2 in ethanol or liquid ethane, ethylene or methane are specified) contacting at least a portion of the gas with the cooled inner surface of the vessel to solidify the SF6 and separating the solid from the residual air by displacing the air with incoming contaminated gas. Up to four such vessels may be connected in series, the first being connected to a source of contaminated SF6 and the last leading to the atmosphere. Each vessel may be electrically heated to sublime the purified SF6 which may then be pumped out of the apparatus.  The coolant is removed from contact with the vessel(s) during this operation.
Patent GB-1210857-A (GB)
Title: Synthetic resin hinge
Inventor: WHITE IRVINE EVERARD
IPC: E05D1/02
Filed: 1968-08-02
Abstract: 1,210,857. Flexible strip hinge with barbed slabs. ILLINGWORTHS (PLASTICS) Ltd. 31 July, 1969 [2 Aug., 1968], No. 26953/68. Heading E2F. [Also in Division B8] A synthetic resin hinge comprises a pair of flap members 11 and 12, adapted for connection to the elements to be hinged, and a flexible web portion 13 integrally joining the flap members, each flap member being barbed in cross-section in two of three mutually perpendicular planes and having a cross-section in the third plane for interlocking with a recess in the corresponding element to provide a snap connection. Preferably, the flaps have a dovetail cross-section in the third plane. Crosssections in the first two planes show a tapered shank with an enlarged tapered head, defined by faces 14, 15 and 16, 17 respectively in the first plane and faces 20, 21 and 24, 25 respectively in the second plane. Dovetailed recesses 22, 23 are provided in the third plane. The web is unflexed in the open position (broken lines in Fig. 1a) and flexed in the closed position (full lines). Each of the elements to be hinged (Fig. 1b) has dovetail recesses 43 and 44 and a dovetail boss 45 in the third plane in its rear wall 37. The hinge is inserted in the direction of the arrows 50, the enlarged head portions of the flaps being snapped through the recesses into a channel 40. The elements may be a container and lid, e.g. a powder compact. The elements are made from polystyrene and the hinge from polypropylene.
Patent GB-825155-A (GB)
Title: Improvements in and relating to the production of crimped yarn
Inventor: DOBSON AUSTIN
IPC: D02G1/02
Filed: 1956-12-04
Abstract: 825,155. Twisting and crimping yarns. SCRAGG & SONS Ltd., E. Jan. 7, 1958 [Dec. 4, 1956], No. 36971/56. Class 120(3) Yarn which is both crimped and positively twisted to enhance the stretch and bulk properties thereof is produced in a single continuous operation on one machine by withdrawing thermoplastic yarn from a rotating package, passing the resultant twisted yarn near to or in contact with a heated surface, where the yarn is softened and both real twist and false-twist components are set therein, and then through a false-twisting device rotating in either direction, finally passing the yarn to a take-up package. As shown, a package 1 is mounted on a rotated spindle 2 so that twist is imparted to a yarn 4 which is then advanced through nip rollers 7, 8, a heater 9, a falsetwister 10, a guide 13, nip rollers 15, 16 in geared relationship with rollers 7, 8, to stretch or overfeed the yarn, to a take-up package 17 driven by a roller 18. Rollers 7, 8 may be replaced by a gate or disc tensioner.
Patent GB-1023180-A (GB)
Title: Nylon having improved dyeability
IPC: C08G69/02
Filed: 1964-09-10
Abstract: Nylon 66 is rendered more susceptible to dyeing by incorporating therein during condensation 0.2 to 2% of N-(2-aminoethyl) piperazine and 3 to 20% of caprolactam or 6-aminocaproic acid.  In examples the product is melt spun into filaments and dyed.
Patent GB-999316-A (GB)
Title: Improvements in or relating to heat-disposable foundry patterns
IPC: B22C7/02
Filed: 1962-10-01
Abstract: 999,316. Patterns. HOWE SOUND CO. Oct. 1, 1962, No. 37124/62. Heading B3F. A heat-disposable pattern comprises a base portion 12 and a coating 14, 15 on at least part of the surface of the base portion of a composition having a melting point less than the temperature for disposal of the base portion. The base portion may be a synthetic thermoplastic resinous material such as polystyrene, polyvinyl chloride &c. The coating may be a wax such as paraffin wax, carnauba wax, beeswax &c., low melting point solids such as hydrogenated vegetable oils, fish oils, beef tallow &c., carbowax, low melting point A lathe turret 24 is rotatably and adjustably mounted on a holder 10A for securing in the tool-post a lathe. The tools are located by screws 32 which co-operate with a plunger 20. The plunger is tapered to permit ratcheting in the reverse direction during the indexing movement. The tools 38 are clamped by eccentrics 42. The parting tool 38A is clamped by a grooved screw 42A.
Patent GB-522924-A (GB)
Title: Improvements relating to the arrangement of liquid cooling radiators in aeroplanes
IPC: B64D33/10
Filed: 1938-12-21
Abstract: 522,924. Aircraft wings. MESSERSCHMITT AKT.-GES. Dec. 21, 1938, No. 37155. Convention date, Dec. 21, 1937. [Class 4] An aeroplane wing has a built-in radiator 2 the flow through which is controlled by a rear flap 5 which can be further moved into positions shown at 8 and 9 to act as a lift-increasing flap or a landing flap. The flap may extend along the wing span beyond the outlet from the radiator.
Patent GB-1196935-A (GB)
Title: Moldable Bearing Material and Articles made therefrom
IPC: C08L27/18
Filed: 1967-08-14
Abstract: 1,196,935. Phenolic resin-PTFE compositions. BENDIX CORP. 14 Aug., 1967 [6 Sept., 1966], No. 37180/67. Headings C3P and C3R. [Also in Division E2] A curable mouldable composition suitable for use in manufacturing bearing components comprises a water-soluble, one-step phenolic resin and an aqueous colloidal dispersion of PTFE, the PTFE comprising 30-45% by weight of the total solids. The composition may also contain CdI 2  or a metal oxide, e.g. CdO. The PTFE dispersion may be 35-60% solids. The composition may be used to impregnate cotton cloth which is then shedded and moulded.
Patent GB-1404802-A (GB)
Title: Colour television signal generator
IPC: H04N9/11
Filed: 1972-08-09
Abstract: 1404802 Prism splitting systems FUJI SHASHIN FILM KK and IKEGAMI TSUSHINKI KK 9 Aug 1972 [9 Aug 1971] 37242/72 Heading G2J [Also in Division H4] Incident light is split into three equal intensity beams by a prism 176, light entering the base of the prism and the three beams emerging from respective ones of the three prism faces. The three beams are then passed through respective red, green and blue filters to provide red, green and blue component beams.
Patent GB-929730-A (GB)
Title: New cyclopentanoperhydrophenanthrene derivatives and processes for the production thereof
IPC: C07J41/00
Filed: 1959-11-03
Abstract: The invention comprises compounds of the general formulate:- <FORM:0929730/IV(a)/1> <FORM:0929730/IV(a)/2> and the corresponding 6-dehydro compounds (R is hydrogen, hydroxy or the acyloxy derivative of a hydrocarbon carboxylic acid having up to 12 carbon atoms; Y is <FORM:0929730/IV(a)/3> =O, or <FORM:0929730/IV(a)/4> ; X is hydrogen or fluorine, and is hydrogen when Y is hydrogen, and hydrogen or fluorine when Y is =O or <FORM:0929730/IV(a)/5> ; Z is C-C or C=C) together with their preparation from the corresponding 6-unsubstituted D 4-3-keto compounds by ketalising the 3- and 20-keto groups, epoxidising the resulting D 5 double bond, treating the 5a ,6a -oxido derivative with potassium cyanide in ethylene glycol, hydrolysing the ketal groups to yield the 6a -cyano-D 4-3-keto derivatives, which are optionally dehydrogenated (a) at C1-C2 by use of selenium dioxide; (b) at C6-C7 by treatment with sodium methoxide followed by bromination and then dehydrobromination of the 6-cyano-6-bromo compound, e.g. with collidine or calcium carbonate-dimethyl formamide.  The compounds may be esterified in a conventional manner giving, e.g. the corresponding acetate, benzoate or cyclopentylpropionate.  The dehydrogenation at C1-C2 may be carried out by microbiological methods, e.g. using Corynebacterium simplex ATCC 6946.  Detailed examples illustrate the invention.  The compounds are generally potent progestational agents.  11b ,17a -Dihydroxy-19-nor progesterone and its 11-oxo analogue are prepared by microbiological hydroxylation of 17a -hydroxy-19-nor progesterone with Curvularia lunata (Syntex strain 192), followed by oxidation of the 11b -hydroxy group with chromium trioxide in acetic acid.
Patent GB-346458-A (GB)
Title: Improvements in or relating to sound records
IPC: G11B3/70
Filed: 1929-10-21
Abstract: 346,458. Electrolysis. COLES, S. O. COWPER-, Rossal House, Thames Street, Sunbury-on-Thames. Oct. 21, 1929, No. 37459/28. [Class 41.] Preparing surfaces.-A base of absorbent material such as cardboard is waterproofed, coated with a substance, such as plumbago or copper powder, and consolidated by subjection to pressure as a preliminary to electrodeposition of zinc, copper, lead or other soft metal or alloy for the production of a sound record. After the recording operation, the metal or alloy may be coated by electrodeposition with a comparatively hard and non- corrodible material such as nickel, chromium, cobalt, &c. Electrodeposition may be carried out by the process described in Specification 338,487, [Class 41, Electrolysis].