baber/WOPTO huggingface dataset:
Patent GB-1088631-A (GB)
Title: Hop concentrate
Inventor: MITCHELL WILLIAM
Filed: 1963-04-18
Abstract: In a method for preparing solvent extracts of hops, wherein hops are contacted with an extracting solvent (benzene, light petroleum, acetone, methanol or carbon tetrachloride) to form a crude extract, the solution is separated from insoluble matter and the crude extract recovered, the crude extract so obtained is contacted with a purifying solvent consisting of from 80 to 90% by volume methanol, from 80 to 90% by volume ethanol or 80 to 90% by volume of a mixture of methanol and ethanol, and from 10 to 20% by volume water, at a temperature of from 0 to 50 DEG C. in an amount sufficient to dissolve a part of the crude extract, thereby forming a solution of a purified extract, the solution of the purified extract is separated from the undissolved part of the crude extract and the purified extract is recovered.  The crude extract may be contacted with absolute methanol and the water added subsequently.  The purified extract typically contains 82-94% soft resins, including a total humulones content of 25-55%, a total lupulone content of 10-40%, 1-4% essential oil of hops and up to 2% water.  The purified extract may be dissolved in a water immiscible solvent (benzene, light petroleum or carbon tetrachloride) and the solution contacted with 2-20% w/v potassium or sodium hydroxide to form an aqueous solution (pH 10.7-12) of an alkaline extract, the aqueous phase being separated from the water-immiscible phase and heated to isomerize the humulones in the alkaline extract.  Carbon dioxide may be passed through the solution of the alkaline extract before and/or during the heating, such heating may involve boiling the solution at atmospheric pressure for at least one hour, and the solution of the isomerized extract produced may be concentrated or dried.  The purified extract may be rendered dispersible by blending with 100 parts by weight of the extract, 2.5 parts of 5% aqueous methyl ethyl cellulose, 2.5 parts of a 5% aqueous sodium carboxymethyl cellulose solution and 2.5 parts by weight of glucose syrup (70% glucose w/v in water).
Patent GB-903554-A (GB)
Title: An improved fluid-tight device for leading an electric cable through a wall opening
IPC: H01B17/30
Filed: 1960-05-02
Abstract: 903,554. Carrying conductors through partitions. COMPAGNIE GENERALE D'ELECTRICITE. May 2, 1960 [May 2, 1959], No. 15383/60. Class 36. To make a fluid-tight joint where an electric cable comprising a conductor 6 and insulation 7 passes from a fluid containing duct (not shown), annular packing 11 of a fluid-tight gland is compressed by ring 12 between flange plates 4, 13 and to a drawn metal sleeve crimped at 10 on a plastic tube 8 surrounding the cable. Flange plate 4 is bolted to flange 2 of metal sleeve 1 which is welded or screwed to the duct, the duct being sealed by packing 3 compressed in an annular groove in flange 2 by a corresponding rib on flange plate 4. Several cables may pass through the same flange plates.
Patent GB-845859-A (GB)
Title: Improvements relating to motor-car bodies
IPC: B60J7/14
Filed: 1959-05-05
Abstract: 845,859. Vehicle bodies. DAIMLER-BENZ A.G. May 5, 1959 [May 10, 1958], No. 15384/59. Class 108(1). The forward, fixed roof part of a landaulet vehicle is supported at its rear end by spacers 14 carried by an inverted U-shaped tubular member 13 secured to the body. When the rear or folding part of the roof is erected there is a downward step at the rear of the junction of the hood parts.
Patent GB-709502-A (GB)
Title: Ribbon of extruded rubber threads
IPC: D01D10/04
Filed: 1952-06-19
Abstract: 709,502. Extruded rubber threads. UNITED STATES RUBBER CO. June 19, 1952 [July 6, 1951], No. 15420/52. Class 70 A method of forming a flat ribbon composed of a series of extruded rubber threads separably stuck together comprises drying a plurality of freshly extruded unvulcanized rubber threads out of contact with each other until their surfaces are only slightly tacky, causing these dry but tacky threads, without twisting them, to contact each other to form a flat ribbon in which the threads are initially held together solely by surface adherence due to their tackiness and then vulcanizing the flat ribbon. As shewn latex is discharged from nozzles 11 into a coagulant in tank 12 to form extruded threads T which after travelling a substantial distance in the coagulant pass under a transverse bar 13 and then upwardly over a power driven roller 14 into a washing tank 15 where the spaced threads T .are held depressed by power driven rollers 16, 17, and afterwards pass upwardly in contact with the guiding and advancing rollers 18 to pass into a drying and vulcanizing oven 20 provided with a number of power driven conveyer aprons 21 formed of asbestos fabric and disposed one below the other so that the threads T deposited thereon in 'spaced relation to each other are advanced back and forth within the drier as indicated by the arrows until their outer surfaces are only slightly tacky and they then pass under a wood or metal roller 24 driven at approximately the same speed as the apron that delivers the thread and out of the oven through an opening 25 to a curved gathering bar 26 of glass or smooth metal which may be raised or lowered to vary the pressure its curved surface exerts upon the threads T causing them to converge as they pass from the guide roller 24 to the gathering bar 26, after which they pass to a forming roller 28 having a small central diameter and large end diameters and provided with a concave peripheral surface and driven at a higher surface speed than that at which the threads T travel, to form the desired ribbon R. As the ribbon leaves the roller 28 it passes around a ribbon delivery roller 31 driven at approximately the same surface speed as the belt 21 and back through an opening 25 in the oven onto a conveyer apron 21 to be advanced back and forth in the lower portion thereof. ' The upper portion of the oven above the level of the roller 24 is maintained at a temperature of approximately 220‹F. so as rapidly to dry the threads but not vulcanize them. The lower portion of the oven below this roller 24 is maintained at a much higher temperature of approximately 400‹F. to vulcanize the threads of the ribbon R and after the threads are sufficiently vulcanized, the ribbon passes out of the oven through an opening 32 to engage the driven rollers 33 and 34.
Patent GB-1452048-A (GB)
Title: Method of manufacturing a trimmer potentiometer
IPC: H01C10/34
Filed: 1975-04-15
Abstract: 1452048 Soldering; making potentiometers SPECTROL ELECTRONICS CORP 15 April 1975 [13 May 1974] 15512/75 Headings B3R and B3A A method of manufacturing a trimmer potentiometer having a non-conductive substrate 10 comprises the steps of depositing material, e.g. a silver or gold composition, to form a conductive track 11 on a surface of the substrate, depositing resistance material, e.g. a cermet or carbon composition, on the surface to form a resistance path 16, depositing non-solderable material on selected portions 17, 18, 19 of the conductive track, and soldering terminal pins 20, 23, 24 to the ends of the conductive track, said non-solderable material 17, 18, 19 forming dam sections to limit the flow of solder along the conductive track. The non-solderable material may be the same material as that of the resistance track and may be deposited simultaneously therewith, e.g. by a screening process.
Patent GB-1526142-A (GB)
Title: Meshing screw compressors
IPC: F04C18/16
Filed: 1976-04-15
Abstract: 1526142 Rotary positive-displacement fluidmachines KUHLAUTOMAT BERLIN VEB 15 April 1976 [23 April 1975] 15523/76 Heading F1F In a meshing-screw compressor of the oilinjection type part-annular plates 1 adjacent the high-pressure ends of the rotors (not shown) have edges 2, 3 and 2A, 3 and are coupled with an output-control slide-valve 7 by members 8 so that as the slide-valve is moved towards the high-pressure ends of the rotors to reduce the output rate the plates are turned about the axes thereof so as to vary correspondingly the breadth A, B of gaps between the plate edges 2, 2A and an edge 5A of a working-fluid outlet channel, which has other edges 5.
Patent GB-827483-A (GB)
Title: Rug cushions consisting of adhesively bonded fibrous materials
IPC: D04H13/00
Filed: 1957-05-16
Abstract: 827,483. Agglutinated fibrous materials; coated felts. SMITH MANUFACTURING CO. Ltd. May 16, 1957 [May 29, 1956], No. 15524/57. Class 140. A method of making a rug cushion comprises impregnating a felt mat with an elastomeric binder capable of forming a substantially porous body of bonded fibres having predetermined resilient characteristics and embossing at least one surface of the mat with a pattern of spaced protuberances while the said mat is moist to increase its resilient character and drying the said mat. The mat may be impregnated with the binder by submersion in a bath and then passed between pressure rolls to expel excess liquid. The surfaces of the mat may then be coated by spraying with the binder. The wet mat is then passed between heated rolls, one or both of which are engraved, whereby one or both surfaces is embossed, and finally passed through a drier to cure the product. Specified binders are synthetic rubber latex or polyvinyl chloride latex. As shown, a processed rug cushion, according to the invention, A, comprises a woven core of hessian B. Vegetable, mineral or synthetic fibres are needle-loomed to core 13 to form surface layer 11 and the less dense body 10. The surface layer 11 is more dense by reason of having an impregnating coating, and is formed into protuberances 14 by use of an engraved roll.
Patent GB-114275-A (GB)
Title: Improvements in or relating to Printing Presses.
IPC: B41F27/10
Filed: 1917-10-25
Abstract: 114,275. Goss Printing Press Co., (Goss Printing Press Co.). Oct. 25, 1917. Starting-arrangements; printing-surfaces.-In a rotary printing-press of the kind in which the formes are secured to the printing-cylinder by clamps movable longitudinally of the cylinder, means are provided to prevent the starting of the press until the plate clamps are in plate-clamping position, and the tool for operating the clamps is removed. In one construction, Fig. 3, the plateclamps 18 are operated by screws 19, screwing through a head 20 fixed to the printing cylinder 17, and revolubly mounted in the clamps 18. A semicircular guard member 21 pivoted to brackets 22 on the framework 15 is held normally bv a spring 23 so as to overhang the squared ends of the screws 19 and thus prevent the application of the clamp-operating tool to the screws. The guard 21 is provided with an arm 24 carrying an insulated spring-pressed switch contact 26 adapted when the guard is in normal position to close two contacts 28, 29 in the circuit controlling the driving of the press. When the guard-plate is moved to permit the application of the tool to operate the clamps, the switch is opened to prevent starting of the press. Also, if the clamps are not in clamping position, the ends of the screws contact with the guard 21 and hold the switch open. In another construction, Fig. 10, the clamp-operating screws 19<a> are screwed through the clamps 15<a> and are revolubly mounted in heads 31 movable longitudinally of the cylinder 17<a> by-means of an eccentric 32, Fig. 8, operated by an inserted wrench 37, Figs. 8 and 9. A pivoted guard 33 is held normally by a spring 36 so as to overhang the ecentric 32, and when turned to permit the insertion of the wrench, it automatically breaks a circuit in a similar manner to the construction shown in Fig. 3. Means are provided to prevent the insertion and removal of the wrench unless the clamps are in plate-clamping position, and these means comprise a key 38, Fig. 8, mounted in the eccentric 32 adapted to be moved inward to engage a recess 39 in the wrench to prevent its removal until the clamps are in clamping position, in which position the head of the key 38 can engage a recess 40 in the bend 31 and allow the wrench to be removed. The wrench is provided with pivoted handles 41, 42 which can be turned down so as not to obstruct the insertion and removal of the printing-plates.
Patent GB-927886-A (GB)
Title: Stabilized hydrocarbon polymeric materials
IPC: C08K5/00
Filed: 1961-05-01
Abstract: A polymer of a mono-olefin is stabilized with a first component selected from aromatic and aliphatic disulphides, aromatic and aliphatic mercaptans, aromatic thioethers and aliphatic thiuramdisulphides, and a second component selected from phenols of formula OH-R[X]R1-OH where [X] is CH2 or a single bond and R and R1 are aromatic rings, derivatives of said phenols, and amines of formula <FORM:0927886/IV(a)/1> wherein R and R1 are benzene or naphthene.  The polymer may be derived from ethylene, propylene, butene, methyl butene, methyl pentene, dimethyl pentene and/or dodecene.  The products are useful for cable sheathing and wire insulation.  Specifications 832,024, 834,355, 834,356, 836,664, 836,937, 840,460, 850,499 and 921,306 are referred to.
Patent GB-562181-A (GB)
Title: Improvements in or relating to scrapers for excavating earth
IPC: E02F3/64
Filed: 1942-11-07
Abstract: 562,181. Excavating. RUSTON - BUCYRUS, Ltd. Nov. 7, 1942, No. 15748. Convention date, Dec. 1, 1941. [Class 68 (i)] A carry-type earth-moving scraper comprises a front truck 21 fixed to side plates 25 connected rearwardly by beams 30, 31, and a rear truck 22 with forwardly extending side arms 28 pivoted to the side plates at 29 ; either truck may be replaced by a propelling vehicle. The bucket 27 is pivoted at 33 behind the scraper blade 26 which is fixed either to the side plates or to the bucket ; in the lowest position of the bucket, a bracket 36 thereon rests on the beam 30. A front apron 37 is pivoted rearwardly at 39 between the side plates. A cable 40 passes from a winch round sheaves 41, 42, 43, on the front truck and round sheaves 44, 45, 47 at the rear, and acts to raise and lower the side plates 25, scraper blade, &c. A second cable 49 passes over further sheaves 41, 42, 43, a sheave 50 on the apron, and a sheave 51 on the bucket, and when drawn in first raises the apron and then tilts the bucket past the apron pivots 39 to dumping position; this movement of the bucket is limited by contact of a plate 52 thereon with cams 53 on the apron, and on paying out of the cable 49 and descent of the apron by gravity the cams 53 initiate return of the bucket. At least the rear 35 of the bucket is set in from the side plates 25 to allow the bucket to pass the apron pivots 39, and to prevent escape of spoil at these parts when digging or carrying, offset plates 56 are attached to the side plates 25, and guard plates 55 or other filling means are attached to the sides of the bucket. U.S.A. Specification 2,198,916 is referred to. The Specification as open to inspection under Sect. 91 (4) (a) states that separate cables may be provided to control pivoting of the bucket and apron ; this subject-matter forms no part of the Specification as accepted.
Patent GB-405167-A (GB)
Title: Improvements in and relating to portable refreshment bars
IPC: A47B69/00
Filed: 1933-06-01
Abstract: 405,167. Folding refreshment stalls. NAON, S. M., 643, Sa.rmiento, Buenos Aires. June 1, 1933, No. 15894. [Class 20 (i).] A portable refreshment bar which in the closed position constitutes a cabinet, is provided with hinged lid 19, hinged counter 11, hinged side doors 2, covering an opening 5 for an attendant, sliding trays 9 to hold bottles, and a storage place in the base. Glasses are supported in shelves fixed to the insides of the doors. A hinged foot-rail 17 is provided at the base of the front and a recess 18 which the foot-rail occupies when the cabinet is closed.
Patent GB-137243-A (GB)
Title: Improvement in liquid feed systems
IPC: F23D11/24
Filed: 1919-06-24
Abstract: 137,243. Fesler, M. A. June 24, 1919. Vacuum apparatus.-In a liquid feed system. such as is used, for example, tor supplying fuel oil to burners, a leak or accident to the system or a rise in temperature above the predetermined point, closes automatically a valve in the supply pipe and withdraws the liquid beyond the valve from the system. As shown in Fig. 1, oil from a reservoir 3 is drawn by a steam pump 17 through siphon pipes 11, 13, 15 and a feed control valve 47, and is forced through a steam-heated chamber 25, pipes 27, 29, a valve 35, and an air dome 33, to the burner 1. The valve 35 controls the return of the excess oil to the reservoir through a pipe 31. The valve 47 is arranged near a manhole 3<c> in the reservoir 3 and comprises a disk 51 pressed against a seating 49 by a spring 53 mounted in telescoping tubes 55 and having its compression adjustable by means of a handle 61. A tank 41 is supported in the reservoir 3 by brackets 45 and is connected by a pipe 46 to the pipe 11, so that when the pump is working, a pressure reduction occurs in the tank and piping, the valve disk 51 being thereby lifted. In the event of leak occurring in the suction pipe, the air admitted causes a rise in pressure allowing the valve disk 51 to close, and the partial vacuum in the tank 41 withdraws the oil from the pipes 13, 15. A union 63 in the feed pipe 15 may be fitted with a valve normally held closed by a fusible link 77. In the case of a fire or a furnace flare back, the link fuses and the valve admits air to the system causing the valve disk 51 and the tank 41 to act as described above.
Patent GB-1419092-A (GB)
Title: Thermoset cellular material containing coal digest
IPC: C08J9/06
Filed: 1972-04-06
Abstract: 1419092 Cellular plastics/bituminous compositions COAL INDUSTRY (PATENTS) Ltd 30 March 1973 [6 April 1972] 15939/72 Headings C3R and C3N A cellular plastics material comprising 5- 90% by wt. of coal digest (i.e. formed by treating coal with a solvent at an elevated temperature), 10-90% by wt. of a thermoset resin compatible with the coal digest in the proportion used, other than an epoxy resin or a natural or synthetic rubber and less than 10% by wt. of a finely divided filler, and having at least 60% by vol. of cells is made by foaming, e.g. with a chemical blowing agent or by whipping or entraining a gas, a mixture of the above coal digest and a thermosetting resin which is then cured. In the examples coal digest, made by treating coal with coal tar pitch at 300‹ C., and extended with anthracene oil was mixed with either (1) bis-(4-isocyanatophenyl)methane, anthracene oil, stannous octanoate, silicone surfactant and water, or (2) an isocyanurate formed by trimerizing di(4-isocyanatophenyl)methane, trichlorofluoromethane and a mixture of compounds having at least two hydroxyl groups/ molecule, catalysts and surfactants, and both mixtures foamed to produce semi-rigid and rigid cellular materials respectively.
Patent GB-226116-A (GB)
Title: Improvements in metallic packings
IPC: F16J15/38
Filed: 1924-07-03
Abstract: 226,116. Ashworth, R. C., and Lindsey, C. July 3, 1924. Stuffing-boxes, substitutes for; boxes; glands. -In packing of the type in which a ring C, having a spherical and a radial bearing surface, is interposed between a stationary part and a stuffing-box B rotating with the shaft, the ring C and the stuffing-box gland b<1> are independently adjustable. The gland b<1> is formed with diametrically opposite lugs b<2>, adjusted by bolts b<3> while the pressure on the ring C is maintained by springs a<2>, housed in a ring a secured to the shaft, and adjustable by studs a<3>. The packing is associated with a bush d<3> having internal grooves and a tapeted end d<4>. Either the shaft or the casing may revolve.
Patent GB-927367-A (GB)
Title: Improvements relating to braking systems for vehicle trailers
Inventor: ILES GEORGE ARTHUR
IPC: B60T11/10
Filed: 1960-05-05
Abstract: 927,367. Brakes. WESTERN ENGINEERING (DELABOLE) CO. Ltd. Aug. 4, 1961 [May 5, 1960], No. 15972/60. Class 103 (1). A braking system for a vehicle trailer comprises an hydraulic cylinder 20 and an associated ram 21 mounted on the trailer and operable by hydraulic fluid pressure available on the towing vehicle. The ram 21 is connected to a hand-operable, mechanical braking mechanism on the trailer by which means the trailer brakes are applied either by the ram 21 without movement of the hand lever or vice versa. The brake linkage may comprise a three-armed crank 14, two arms 18, 22 of which are connected through pin-and-slot 19, 23 lost-motion devices to the hand lever and ram 21 respectively. The third arm 16 is pivotally connected to the brakeoperating rod 17. An agricultural tractor is described in conjunction with the above system.
Patent GB-765916-A (GB)
Title: Improvements relating to the control of reversible electric servomotors by electron-discharge valves
Inventor: BALHAM HARRY AARON
IPC: G05B11/01
Filed: 1953-06-10
Abstract: 765,916. Electric control systems. CROSFIELD, Ltd., J. F. Sept. 10, 1954 [June 10, 1953], No. 16007/53. Class 40 (1). [Also in Groups XXXV and XXXVII] In an automatic control system for, it is suggested, liquid level, or web alignment, in which a reversible servomotor is controlled by the magnitude of a D.C. error signal, the signal controls-the magnitude of a series of pulses which are compared with reference pulses, the resultant pulses being fed to the field of a motor, the armature of which is supplied with unsmoothed rectified A.C. The error signal, it is stated, is derived either from a rheostat liquid level gauge, or by integrating pulses derived from scanning a paper web laterally between a fixed mark and a line printed longitudinally on the web, by means of a photo-cell. This signal, shown as if tapped off a potentiometer 2, is connected in series opposition with the armature of a tachometer generator 7 driven by the motor 4, to bias the grid of a valve 26. The grid also has a square wave input derived by supplying an A.C. input at 14 to a limiter 16 and clipper 21. A portion of this square wave input is also applied to the cathode of valve 26. The grid input is applied via a rectifier 28 so that the bias from the potentiometer 2 determines the magnitude of the square wave signal, whilst the cathode signal is constant, hence the output consists of square waves varying in amplitude and phase sense according to the magnitude of the input signal. This output signal is passed to a clipper 37 which suppresses signals below a predetermined amplitude to introduce a " dead zone " in the operation of the servomotor. The resulting signal is amplified at 39 and 41 to control the amplitude and select the phase of pulses of current passing through the motor field 47 from the unsmoothed output of a rectifier 11. The armature is fed with alternating current. The direction of rotation of the motor 4 depends upon the phase of the unidirectional half-waves in the field winding relative to the alternating current in the armature. The motor 4, it is stated, either controls a valve in the inlet or outlet of the liquid to be controlled; or controls the axial position of a printing roller, or slews round an intermediate roller over which the web passes. In addition to the action of clipper 37, the motor is disconnected when the signal falls below limits by a relay 56 in the anode circuit of a valve 57 to which the control signal from valve 39 is also applied. One contact of the relay opens the armature circuit whilst the other disconnects the screen of valve 42 thereby cutting off the field supply. Specification 765,917 is referred to.