baber/WOPTO huggingface dataset:
Patent GB-802669-A (GB)
Title: Process for the preparation of 1, 4-dicaffeylquinic acid
IPC: C07C69/76
Filed: 1955-05-26
Abstract: The invention comprises 1,4-dicaffeylquinic acid of the formula <FORM:0802669/IV (b)/1> and a process for its isolation from a decoction liquor containing it (preferably obtained from leaves of cardoon, Cynara cardunculus, or artichoke, Cynara scolymus) by treating the liquor with an excess of a water-soluble salt of barium or lead, respectively in the cold or with heating, and freeing the resulting separated precipitate, which contains the barium or lead salt of 1,4-dicaffeylquinic acid, from impurities by selective separation under acid conditions.  Three methods for the selective separation are described: (a) fractional elution of precipitated lead salts with 30-50 per cent acetic acid at 60-80 DEG  C., the active substance being recovered from the acid solution thus obtained by removal of lead with sulphuric acid and H2S, and concentration of the remaining liquid; (b) total dissolution of the barium or lead salt in a very slight excess of 10 per cent nitric acid, followed by fractional crystallization; (c) dissolution of the accompanying impurities in a slight excess of dilute sulphuric acid and then extraction of 1,4-dicaffeylquinic acid from the insoluble residue with an organic solvent, e.g. methanol, ethanol or dioxane.  The crude caffeylquinic acid obtained by the above methods is further purified by crystallization from dilute acetic acid or water.  In examples: (1) carbon leaves are boiled with water, the hot liquor treated with excess lead acetate solution, the precipitate separated by filtration or centrifugation and 1,4-dicaffeylquinic acid isolated by method (a) above; (2) artichloke leaves are boiled with water, filtered, the decoction concentrated under reduced pressure and treated with barium nitrate and barium hydroxide, yielding a yellow precipitate which is treated by method (c), extracting dicaffeylquinic acid with alcohol; (3) the yellow precipitate obtained as in (2) is treated with dilute nitric acid and allowed to stand, when the quinic acid crystallizes; (4) the precipitate obtained by treating a decoction of cardoon or artichoke leaves with lead acetate solution is treated by method (c), using ethanol as the organic solvent.  The structure of 1,4-dicaffeylquinic acid is confirmed (a) by acetylation to a hexa-acetate, which on hydrogenation gives a tetrahydro derivative; (b) by alkaline fusion to 3,4-dihydroxybenzoic acid; (c) saponification of the substance and of its tetrahydro derivative giving quinic acid together with 3,4-dihydroxy cinnamic acid or b -(3,4-dihydroxyphenyl) propionic acid respectively; and (d) by methylation to 1,4 - di - (31,41 - dimethoxycinnamoyl) quinic acid methyl ester.  Specification 802,668 is referred to.
Patent GB-1185756-A (GB)
Title: Fastener
Inventor: KINDELL COLIN DAVID
IPC: H01R/
Filed: 1968-03-29
Abstract: 1,185,756. Stud fastenings. AMP Inc. 10 March, 1969 [29 March, 1968], No. 15321/68. Heading H2E. [Also in Division E2] A fastener for insertion into an aperture in a support and formed from a sheet metal blank includes an anchoring portion comprising an elongate member turned upon itself to form spaced leg portions, 3, 4. for insertion into the aperture, one of the leg portions including a foot portion for wedging insertion between the spaced leg portions. As shown, the other end of the elongate member is formed into a ferrule 2 for crimping to an electrical conductor. Further embodiments are also described (Figs. 2, 3, not shown) in which the knee portions of said leg portions are bent towards each other and shoulders are cut in the sides of the knees. The tip of the foot - portion may be bent to a double thickness. The fastener may also be used to unite two panels having aligned apertures.
Patent GB-471854-A (GB)
Title: Process for denicotining tobacco
IPC: A24B15/20
Filed: 1936-05-13
Abstract: De-nicotining is effected by subjecting tobacco leaves or parts thereof to fermentation in an alkaline liquor containing virulent bacteria which has been subjected to fermentation one or more times in the presence of air.  The air is supplied under pressure by a compresser and freed from oil entrained thereby, and any excess of alkalinity produced is neutralized by injecting citric acid into the air.  After de-nicotining a number of tobacco batches, the liquor which is maintained at a temperature between 25 and 40 DEG  C., is sprayed on to those batches which were first de-nicotined.  Apparatus for carrying out the process is described in Specification 470,719, and may include a cooler for condensing escaping gases and aromatic substances.
Patent GB-375044-A (GB)
Title: An improved electric snap-action switch
IPC: H01H5/06
Filed: 1931-05-26
Abstract: 375,044. Snap-action switches. SEROPOULOS, S., 13, St. Anne Street, Liverpool. -(Pascalides, D. ; 140, Queensberry Street, Carlton, Victoria, Australia.) May 26, 1931, No; 15349. [Class 38 (v).] A dead-centre toggle switch comprises a contact arm 1 fixed on a spindle 2 which is journalled in a U-shaped bracket 3 carried by the base 4. An insulating operating lever is rigidly fixed on the spindle 2 and a snap action is provided by a spring 6 on a link which slides in a slot 7 in the brackets, and acts on a lug 5 on the contact arm. The ends of the contact arm are split at 12, 13 to form contacts for engaging split sockets 8, 9 mounted by means of the wiring terminals on brackets 14. A cover (not shown) is held in place by a nut on an extension of the bracket 3.
Patent GB-1457564-A (GB)
Title: Semiconductor integrated circuits
IPC: H01L27/04
Filed: 1974-04-08
Abstract: 1457564 Design of IC to facilitate testing INTERNATIONAL BUSINESS MACHINES CORP 8 April 1974 [11 May 1973] 15430/74 Heading H1K In a semiconductor IC comprising a plurality of interconnected logic blocks each capable of being tested on application of a test signal thereto there are provided an input terminal adapted to supply such a signal, decoding means operable on receipt of a logic block address to connect that logic block to the input terminal, an output terminal, and a gating means adapted to gate to the output terminal the response of a selected logic block to the test signal. In the Fig. 2 circuit the serially connected logic blocks BO to BN are interconnected via pairs 14, 15 of NOR gates, and their outputs connected to inputs of NOR gates 16, 17 as shown. The decoding means consists of a shift register 20 each stage of which delivers complementary logic outputs which are fed in selected combinations to NOR gates 21.1-21.N, each of which additionally has inputs 22 and 11, and the outputs of which are fed to inputs of the second NOR gate 15 of each associated pair. Prior to testing all the functional blocks are reset, and tested blocks individually reset by a reset circuit or in response to the test signal pattern, and during testing logic 1 is applied on line 19 and logic 0 on lines 18 and 22. Application of a logic block address at 10 to the shift register enables the NOR circuit 21 associated with the selected block to feed the test signal applied at terminal 11 to that block via the associated gate 15 while disabling the remaining NOR circuits 21, all gates 14 being disabled thereby isolating the block under test. The test signal appears in true form at the selected block due to inversion in NOR gates 21 and 15 and the response signal is fed via line 4 through NOR gates 16 and 17 to output 6, inversion again occurring in both gates to give a true output for comparison with a reference output. All blocks can be similarly tested. In normal operation a logic 1 applied on lines 18 and 22 and logic 0 on line 19 ensures interconnection of the block and the disabling of gates 16 and 21.
Patent GB-913625-A (GB)
Title: Improvements in or relating to the earthing of cable shields and conduits
Inventor: LOBLE RONALD FREDERICK
IPC: H02G3/06
Filed: 1961-04-28
Abstract: 913,625. Earth-continuity couplings. LOBLITE Ltd. April 28, 1961, No. 15472/61. Class 38 (1). Interconnection, e.g. for earthing purposes, of cable sheaths or conduits entering an insulating fitting such as a junction-box 1 is effected by metal connectors 10 located in the entry sockets 2 and each comprising a helix of wire or strip having a shank 11 or 12 for connection to a terminal 9.
Patent GB-529268-A (GB)
Title: A device for facilitating the slicing of foodstuffs
IPC: A47J47/00
Filed: 1939-05-26
Abstract: 529,268. Meat &c. slicing appliances. LITTLE. E. C., and METCALFE, C. B. L. May 26, 1939, No. 15619. [Class 28 (ii)] In a device for facilitating the slicing of cooked meats, joints &c. comprising a spinked turntable 13 for supporting the meat &c. journalled upon a base member 11 provided with an inverted V-shaped rubber ring 12 or other gripping means, a one-way clutch is provided to allow of rotation of the turntable in one direction only. The turntable is journalled upon the base by means of a ring of balls 14 acting between races 15 fast with the base and turntable, and is centrally held by a pin 16 passing through a central opening in the base. The lower end of the pin carries a ratchet wheel 18 which engages with a spring-pressed pawl 19 secured on the underside of the base. The meat is penetrated by a knife applied to one edge and the turntable then partly rotated to enable the knife to slice the meat further round its periphery.
Patent GB-978791-A (GB)
Title: Film magazine for photographic cameras
IPC: G03B17/30
Filed: 1962-04-24
Abstract: 978, 791. Magazines for cameras. AGFA A.G. April 24,1962 [April 28, 1961], No. 15653/62. Heading G2A. In a film magazine for a camera having detachable supply and take-up cassettes, the cassettes have differently formed locating means within the magazine so that it is not possible to insert either cassette in the position intended for the other. As shown, A1 is the housing of a film magazine having a cover A2. At either end of the housing are chambers 3 and 4 for accommodating the supply cassette B and take-up cassette C respectively. Within chamber C is a large centering recess 10 corresponding to a stub spindle 12 on the cassette, and two recesses 11, subtending a central angle of about 160 degrees, corresponding to two pins 13 on the cassette. In chamber 4 there are two similar recesses 14 corresponding to pins 15 on the cassette, but subtending a central angle of about 170 degrees, so that the cassettes can be inserted in one position only, and in the right chamber. The cassettes themselves are illustrated in more detail in Figs. 2 and 3 (not shown). Each cassette is formed in two separable parts, which fit together by bayonet joints, and neither part of one cassette can be fitted to either part of the other. The supply cassette B will take only a coreless film, i.e. not on a spool, and may have afixed central mandrel to hold the film. The take-up cassette contains a spool 47 whichfits on to a driven spindle 9 in the chamber 4. The magazine cover has two discs 48, 49, rotatable by spindles 50, 51, so that the words " open " or "shut" are visible through windows 52. On attaching the cover, the word "open" must be visible. In this position holes 57 in discs 48 are in register with pins 30 on the supply cassette, and holes 58 in disc 49 with pins 39 on the take-up cassette. Thus the cassettes can be rotated inside the magazine into the position where their film entry and exit slots are open by turning the external spindles 50, 51. At the same time lugs 53 on the discs 48, 49 lock behind pins 56 on the housing.
Patent GB-761698-A (GB)
Title: Rail vehicle with loading ramp
IPC: B61D47/00
Filed: 1954-05-27
Abstract: 761,698. Loading vehicles on to rail vehicles. MINDERMANN, K., and FISCHER, K. May 27, 1954 [May 29, 1953], No. 15656/54. Class 78 (4). Means for supporting a ramp f, Fig. 5, for loading vehicles on to a railway truck, and a turntable i for receiving the vehicles, are independently mounted on the truck frame a which is adapted to be supported directly from the ground during loading and unloading. The truck frame may be supported from the ground directly by suitable jacks or may be provided, as shown in Figs. 3 and 5, with arms g which may be pivoted to an outboard position to engage with jacks b. Guide tracks may be carried by the platform k of the turntable which may be mounted on a central king-pin carried by the piston q, Fig. 5, of a hydraulic ram by which the turntable may be raised and lowered so that a load carried by it will clear obstructions on the platform of the truck. Suitable mechanical devices may replace the hydraulic ram. The platform of the turntable may be mounted to tilt, as a vehicle is driven on, so reducing the bending moments on the turntable support. Rails on the turntable may extend beyond the platform k to carry vehicles whose wheel-bases are greater than the diameter of the turntable. Further ground engaging devices w may be carried beneath the buffer boards of the truck; this enables the ramps f to be secured to the ends, as well as to the side, of the truck. A truck according to the invention may serve to feed loaded vehicles to and from adjacent trucks in a train.
Patent GB-710475-A (GB)
Title: A method of and apparatus for producing tubular label-bands
IPC: B29C53/04
Filed: 1952-06-23
Abstract: 710,475. Making paper &c. tubes. STOW & PARTNERS, Ltd. June 23, 1952 [Feb. 11, 1951], No. 15763/52. Class 99 (2). [Also in Groups XV and XVIII Tubular label bands for skeins of yarn are formed from a strip 1 of heat scalable ma. terial provided with perforation: by means of whict it can be fed for ward a distance corresponding to the lengths of one band, which is taken from a reel and fed between a forming bar 2 and holder 3. After be. ing fed for the required length the holder 3 is lowered and presses the length 1<SP>1</SP> against the forming bar. Scissors 4 cut the lengths 1<SP>1</SP> from the remainder and the jaws 6', 6", of a pair of folding tongs 5 are lowered and lay the ends of the strip 1<SP>1</SP> flat on to the forming bar. When the tongs 5 have reached their lowest position the slider 7 moves downwards, Fig. 2, and members 9 co-operate with a taper on the slider to close first the jaw 6" and then the jaw 6<SP>1</SP> to overlap the ends of the length 1'. A spring loaded heater block then moves upwards to seal the overlapping portion.
Patent GB-612386-A (GB)
Title: Improvements in or relating to fuel burners
IPC: F23C3/00
Filed: 1946-05-24
Abstract: 612,386. Glass fibres. THURSTON, A. P. (Owens-Corning Fiberglass Corporation). May 24, 1946, No. 15796. [Class 56] [Also in Groups XI and XII] Glass fibres are manufactured by directing a highvelocity blast of combustion products from the mouth of a gas or oil burner 15 (see Group XI), on to glass filaments 12 so that the ends of the filaments are substantially simultaneously melted and attenuated. Molten glass from a melting unit 10 is attenuated by co-operating rolls 11 and fed into a member 13 which guides the filaments as close as possible to the burner orifice. The member 13 has a cut-out portion adjacent the tip so that it closely approximates to the shape of the burner.
Patent GB-1159486-A (GB)
Title: Improvements in Conveying Rollers
IPC: F27D3/02
Filed: 1968-04-02
Abstract: 1,159,486. Rollers. PÍSE-MARRE EDELSTAHLWERK G.m.b.H. 2 April, 1968 [16 June, 1967], No. 15851/68. Heading B8A. [Also in Division F2] A conveying roller for the hearths of metallurgical annealing or reheating furnaces comprises a metal tube 1 on the outer surface of which is distributed a number of part-cylindrical bonded ceramic pads 2 attached to the tube 1 such that thermal movements may take place between the tube 1 and pads 2, due to their different expansion coefficients, without stressing the roller assembly. As shown, the pads are secured by a countersunk screw 5 at one end point only, the other end of each pad being positioned by a pin 7 engaging an elongated slot 6 in the pad. In Fig. 2 (not shown), each pad is retained by three straps (8) engaging, with clearance, edge recesses (3a) in the pads, whilst in Fig. 3 (not shown), similar straps (9) have bevelled edges which engage, with clearance, corresponding bevelled edges (4a) in the pads. The inner radius curvature of the pads 2 corresponds to the surface radius of the tube 1 at normal operating temperatures, and the outer surface of the securing screws 5 or straps (8) (9), in all cases, is arranged below the adjacent pad's outer surface.
Patent GB-1192538-A (GB)
Title: Vented Closure
IPC: B65D51/16
Filed: 1969-03-26
Abstract: 1,192,538. Caps for bottles. ARMSTRONG CORK CO. 26 March, 1969 [26 June, 1968], No. 15858/69. Heading B8T. A screw cap 10 with an internally threaded annular skirt has a composite lining 12 including an asbestos-fibre backing material 14, resistant to corrosion due to the nature of the container contents, and a fibrous, spun-bonded polyethylene sheet 16 at least partly facing the backing material 14, which seats against the rim allowing the passage of gas and vapour but not liquid.
Patent GB-346212-A (GB)
Title: Improvements in or relating to variable electric resistances, inductances and like instruments
IPC: H01C10/28
Filed: 1930-05-23
Abstract: 346,212. Variable resistances and inductances. STANDARD TELEPHONES & CABLES, Ltd. and ROBERTON, J. S. P., Columbia House, Aldwych, London. May 23, 1930, No. 15893. [Class 37.] Contact is made with a resistance or an inductance coil, or with the studs of a regulating switch which may control a variable condenser, by means of a metal ball moving in a groove in a rotating cylinder. The ball 3 may be pressed into the groove 8 in the cylinder 1 and against a rod carrying a coiled resistance 4 by means of a spring-actuated bar 5. Arrangements with two and four resistance coils are also described, the latter being suitable for use with the apparatus described in Specification 179,600, [Class 40 (v), Wireless signalling &c.]. The groove 8 may be in the form of a regular helix as shown, or may be of varying pitch or may be in the form of an ellipse so that the resistance or inductance passes through a maximum or minimum while the cylinder 1 is continuously rotated. A variation of the rate of change of resistance &c. with the rotation of the cylinder 1 may also be obtained by winding the wire on a tapering former.
Patent GB-646610-A (GB)
Title: Improvements in or relating to machines for mixing gum with water
IPC: B01F7/04
Filed: 1948-06-14
Abstract: 646,610. Mixing-appliances. FLOWER. A. L. June 14, 1948, No. 15936. [Class 86] A mixer for gums has a cylindrical container 3 with fixed round-section metal bars 10 extending across it and cranked at 12 to avoid a shaft 7 and secured to the container by nuts 11. The shaft mounted in bearings 6 is rotated by a handle 8. Stirrer bars 9 have adjacent pairs at right angles and alternate between the bars 10. Charging and discharging openings are sealed with rubber washers and secured by wing nuts to make the container airtight to prevent the gum mixture from hardening.
Patent GB-1261726-A (GB)
Title: Apparatus for, and a method of aligning optical interferometers
Inventor: BARRINGER BRIAN WILFRED
IPC: G01B9/02
Filed: 1968-04-03
Abstract: 1,261,726. Interferometers. RANK ORGANISATION Ltd. April 3, 1969 [April 3, 1968], No.15949/68. Heading G1A. An interferometer comprises a radiation source 1 for producing a beam of electromagnetic radiation, means 4 for deriving from said beam first and second reference beams, 9 and 10 respectively, and a measuring beam 5, first and second detectors, 11 and 12 respectively, means for recombining reference beam 9 and measuring beam 5 on detector 11 and means for recombining reference beam 10 and measuring beam 5 on detector 12, thereby producing interference between beams 5 and 9 at detector 11 and between beams 5 and 10 at detector 12, the detectors being so positioned that the respective interference patterns are mutually out of phase, the interferometer further comprising means for combining outputs from detectors 11 and 12 to produce an output signal which is independent of the instantaneous intensity of the interference pattern of either of detectors 11 and 12. As shown, the radiation source is a helium-neon gas laser, and a beam-splitter 4 is used to produce the measuring beam 5 and a third reference beam 6, this latter reference beam being further divided at the beam-splitter 4 to produce the reference beams 9 and 10. The outputs V 1 , v 2  from detectors 11 and 12 respectively are proportional to the intensity of the corresponding interference patterns, and the expression (V 1 <SP>2</SP> + v 2 <SP>2</SP>) gives a measure of the overlap of the beams 5 and 6, which combine to produce an interference pattern of the beamsplitter 4, and hence gives a measure of the alignment of the interferometer. The output V 1  is fed to the circuit shown in Fig.6, the output from this circuit being |V 1 |, and a similar circuit produces an output |V 2  from an input V 2 . These signals |V 1 | and |V 2 | are fed to a metering circuit, Fig.7 (not shown), the current through the meter being the envelope curve shown in solid lines in Fig.8. By varying the orientation of the measuring beam to maximize the curve, the best orientation of the interferometer is obtained. The metering circuit may be modified to give in addition a current through the meter of (|V 1 | + |V 2 |)¢ thus reducing the peak to valley variations.
Patent GB-886907-A (GB)
Title: Holders for coat hangers
IPC: A47G25/06
Filed: 1958-05-19
Abstract: 886,907. Garment racks. EKSTROM, N. B. A. May 19, 1958 [Nov. 26, 1957], No. 15953/58. Class 52(5) A holder for coat hangers comprises a bar 1 extending from a wall &c. to support a horizontal beam 7 for a hat shelf &c. the bar having hooks 2 for coat hangers which are staggered so that a greater number can be accommodated in a wardrobe &c. In a modification (see Fig. 3) the suspension hooks of the coat hangers are received in apertures 8 cut in a metal bar.
Patent GB-702689-A (GB)
Title: Improvements in and relating to asphaltic bituminous compositions
IPC: C08K5/098
Filed: 1951-07-05
Abstract: A bituminous composition comprises blown asphaltic bitumen, a lubricating oil distillate and more than 5 per cent. by weight, relative to the bitumen, of an alkaline earth naphthenate.  A modification comprises the bitumen and calcium naphthenate, in the same proportion as before, only.  The ratio of naphthenate to distillate varies from 1 to 2, to 5 to 1.  Preferred naphthenates are those derived from acids of molecular weights between 250 and 600. The calcium naphthenate may be added as the residue obtained by redistilling a suitable lubricating oil over lime.  The addition of the naphthenate or distillate may be prior to, during, or after, blowing the bitumen.
Patent GB-979799-A (GB)
Title: Improvements in cooling-air circuits for the engines of automobile vehicles
IPC: F01P5/06
Filed: 1961-05-03
Abstract: 979,799. Cooling engines. ANDRE CITROEN S.A. May 3, 1961 [May 7, 1960], No. 16047/61. Heading B7H. The cooling-air intake duct of a motor vehicle has an orifice 1 inclined at an angle of preferably less than 45 degrees to the longitudinal axis of the vehicle. The engine may be air-cooled with cooling fins or may be liquidcooled with a radiator 3 and fan 4.
Patent GB-292122-A (GB)
Title: Improvements relating to electric accumulators
IPC: H01M2/16
Filed: 1928-06-01
Abstract: 292,122. Parville et Cie, E. June 14, 1927, [Convention date,]. No Patent granted (Sealing fee not paid). Electrodes.-An accumulator electrode is made u<p> of a number of rods of active material enclosed in sleeves formed of two thin sheets of wood secured together by glue. Fig. 2 shows in plan a rod 1 of active material enclosed in a wood sleeve made in two parts 11, 12 joined together at their ends 13, 14 with a solution of celluloid in acetone or other adhesive. A number of such rods may be held in frames 4 of ebonite &c. having openings 2 to receive the rods. The frames are held together bv cross-pieces 5 of wood. The active material of the rods may surround a core or grid 9 of lead. The frames 4 may be omitted, the rods being glued to small cross-pieces 21 as shown in Fig. 4 to form a complete electrode.