baber/WOPTO huggingface dataset:
Patent GB-796479-A (GB)
Title: Durene recovery process
Inventor: BENNETT RUFUS BURNELL
IPC: B01D9/00
Filed: 1956-12-27
Abstract: <PICT:0796479/III/1> In a method for recovering durene a feed stock containing less than 15 per cent by weight of durene is cooled in a zone 14 (Fig. 1) to a temperature in the range -75 DEG  F. to -100 DEG  F. crystals are formed in a holding tank 16, and a filter cake containing 15 to 50 per cent by weight of durene separated in a centrifuge 18, the filter cake being melted in a tank 21 and the melt cooled in a zone 24 to 0 DEG  F. to form crystals in a holding tank 26; a second filter cake containing 60 to 90 per cent durene is then separated in a centrifuge 28 and melted in a tank 30 and the melt cooled in a zone 32 to 100 DEG  F. and a third filter cake separated in a centrifuge 34 as product.  The filtrate from the first centrifuge 18 is discarded, the filtrate from the second centrifuge 28 is added to the feed stock entering the first chilling zone 14, and the filtrate from the third centrifuge 34 is added to the melt entering the second chilling zone 24.  In a modified method the feed stock mixed with filtrate from the second centrifuge is cooled to 0 to -40 DEG  F., seeded with a portion of slurry from the first holding tank and cooled to -75 DEG  to -100 DEG  F., and a portion of the filter cake from the second centrifuge is added to the slurry in the first holding tank; the melt entering the second chilling zone is also seeded with a portion of slurry from the second holding tank.
Patent GB-964588-A (GB)
Title: Pressure sensing flow control means
Inventor: LEECH DONALD JOHN
IPC: G05D7/01
Filed: 1960-11-16
Abstract: 964, 588. Fluid-pressure servomotor systems. NORMALAIR Ltd. Nov. 9, 1961 [Nov. 16, 1960; Dec. 23, 1960], Nos. 39330/60 and 44288/60. Heading G3P. Means for controlling the amount of air or gas flowing through apparatus, such as a fan 23, enclosed in a duct 10 comprises butterfly valve or shuttering means 24 actuated by a spring biased diaphragm 16 in response to signals from a pressure sensing device 1. The latter comprises a casing divided by a flexible diaphragm 6 into two chambers 4, 5 containing an aneroid bellows 9 and a bellows 7, respectively. A valve 25 actuated by the diaphragm 6 and controlling the pressure on the diaphragm 16 is mounted inside the bellows 7 which communicates with the chamber 4 and with the duct 10 at a point upstream of the fan while the chamber 5 is subjected to the duct pressure downstream of the fan. As the pressure difference across the latter increases the valve 25 and the shuttering means 24 are closed. In a further embodiment, the flow through a heat exchanger is controlled by a butterfly valve, the bellows 8 is connected to the downstream side of the exchanger, and the control valve co-operates with a seat arranged beneath it in the conduit leading to the diaphragm 16. The bellows 9 acts as an altitude compensating means and has its sensitivity limited by a spring 22.
Patent GB-1275765-A (GB)
Title: Apparatus for forming a package of a plurality of containers
Inventor: GROPPER XAVER
IPC: B65B5/06
Filed: 1969-08-06
Abstract: 1275765 Packaging containers UNILEVER Ltd 6 Aug 1969 [10 Aug 1968] 39390/69 Heading B8C In an apparatus for forming a package of a plurality of rimmed containers 11, equally spaced containers are conveyed at a constant speed by a conveyer 21, a blank 1 having openings 5 and weakened lines 6, 8, 9, 10 (Fig. I, not shown) is pushed by blank-transporting members 33 on a pair of chains 32 moving at a higher speed than the conveyer 21, to be folded along lines 9 by a pair of folding rails 34 and positioned on the containers by a cam release 38, the blank is held against the container tops by a pressure roller 39 supported on an arm 40 movable along arrow A, and the panels 3 of the blank are pressed downwardly by pairs of pressure members 25, Figs. 5, 6, mounted on chains 23 inclined as shown to the conveyer 21 and moving synchronously therewith, to engage the panels 4 of the blank under the container rims 13. The containers are supported by support members 22, Fig. 5, each of which supports two adjacent containers along as well as transversely of the conveying direction. The release cam 38, on wheel 37 of the chains 32 positions the blank accurately on the containers by pushing it until its leading edge touches the trailing edge of a preceding blank. Guide rails 26, Fig. 6, position the blank centrally over the containers and support rails 27 support the pressure members 25 against outward deflection. Engaging the panels 4 under the container rims may also be effected by arranging each pressure member 25 of a pair more spaced apart from the other (Fig. 9, not shown) and causing a pair of spring biased horizontal pins (29) on the pressure members to move inwardly under the rim. The apparatus is adjustable to package containers of different sizes.
Patent GB-1096097-A (GB)
Title: Improvements in or relating to the construction of fluid flow control valves
IPC: F16K27/10
Filed: 1966-09-05
Abstract: 1,096,097. Making gate valves. GROVE VALVE & REGULATOR CO. wept. 5, 1966; Sept. 3, 1965; Sept. 14, 1965. No. 39622/66. Heading B3A. A fluid control valve body is made by welding a metal band 18 between and around a pair of metal plates 14, 16 to form an enclosure, securing a rigid member around the enclosure and introducing fluid into the enclosure to expand the plates outwardly with the rigid member restraining the expansion adjacent it so that the enclosure can be severed along the undeformed portion either before or after expansion to form an upper housing 10 and be secured to a rigid lower body 12 to form the valve body. A flange 26 is preferably welded to the upper body which is bolted 62 to a flange 60 welded to the lower body. A valve stem bearing 28 is secured to the band 18 to accommodate the valve stem 34. The lower body is preferably formed from relatively thick metal plates 46, 48 provided with tapped holes 58 for attachment to a pipe section. The valve closure disc 36 is formed from a circular plate 68 welded in a rigid ring 70 and is threaded on to the stem 34. In one embodiment the upper valve body is made by joining a pair of oval plates (82), Figs. 3-13 (not shown), by a metal band (84) and clamping the enclosure between a pair of rigid bars (90) which bisect the plates (82). Fluid under pressure is introduced at the opening (86) to expand the plates on each side of the clamp. The clamp is then removed and the enclosure severed along the undeformed portion to form two upper valve housings. A flange (26) is welded to each of the housings. In an alternative embodiment a pair of circular plates (96), Figs. 14-17 (not shown), are joined together by a channel member (95) which is welded around the periphery of each plate. The enclosure is clamped along a chord (D-D), expanded by fluid P and severed along the chord. A flange (97) is then welded to the housing. If desired the flange may be welded to the plates before the expansion. The channelshaped member 95 may be used with ovalshaped plates to form two housings. The valve closure discs 36 may be formed in various ways. In one embodiment a pair of sheet metal discs (104) are welded to a rigid ring (101) and fluid injected into the enclosure to expand the disc outwards, Fig. 18 (not shown). The ring (101) may be machined to provide annular recesses (112) for seat rings, Fig. 19 (not shown), or may be severed between the discs (104) to form a pair of single thickness closure discs, Fig. 20 (not shown). Instead of expanding the discs outward they may be forced inwardly in a pressure chamber, Figs. 21, 22 (not shown). The space between the disc may be filled with sand or other non-compressible substance.
Patent GB-1117128-A (GB)
Title: Antihypertensive compositions comprising organic sulfonyl azides
IPC: A61K31/10
Filed: 1965-09-17
Abstract: Antihypertensive compositions comprise a sulphonyl azide, RSO2N3 wherein R is an aromatic unsubstituted mono- or poly-carbocyclic radical or a phenyl radical substituted by one or more C1-6 alkyl radicals and a diluent.  The compositions may be administered orally, parenterally, or as an inhalant or spray.
Patent GB-1279038-A (GB)
Title: Electrolytic grinding machine
IPC: B23H11/00
Filed: 1970-08-18
Abstract: 1279038 Electrolytic grinding machine INTERNATIONAL STANDARD ELECTRIC CORP 18 Aug 1970 [22 Aug 1969] 39717/70 Heading C7B An electrolytic grinding machine for finishing workpieces, e.g. the pole surfaces of miniature relay yokes and cores, has, on a working platform 1, a polygonal rotary table 2 made up of (e.g. 6) similar segments 3, preferably each carrying two clamping units for receiving two relay yokes 4 and core 6, which face work stations I to VI having the functions: immersion; holding-down and clamping; grinding; unclamping; ejecting. Each clamping unit may have a toggle lever 9-12 pressing against thrust piece 14 and bolt 19 in turn pressing respective jaws 8, 15 together against compression spring 23 for clamping the yokes 4 between the jaw noses 16, 22 and holding block 5. The grinding station may have an oscillating ring- shaped grinding wheel and an electrolyte nozzle.
Patent GB-874484-A (GB)
Title: Improvements in or relating to electric control devices
IPC: H01H50/64
Filed: 1957-12-23
Abstract: 874,484. Electromagnets. IGRANIC ELECTRIC CO. Ltd. Dec. 23, 1957 [Dec. 24, 1956 (3)] No. 39877/57. Class 35. [Also in Group XXXVII] In a contactor having a housing acting as guide means for the movable armature the magnet frame is movable relative to the housing to allow for alignment with the armature on energization. As shown the housing 10 has side walls 14 and a cross wall 13 dividing the contact chambers 45 from the electromagnet. Slotted locking cup 32 retains the spring 30 on the contacts are operated by plungers 28 which passes through an apertures 42 in the wall 13. The magnet frame 56 fits loosely between a mounting plate 12 secured to the housing 10 and convexly cured ends 76 of the sides 14, and the armature which has much greater mass than the magnet frame moves between guides 58 extending from walls 50 between the side walls 14. Within the recess formed by walls 14, 50 two compression springs 78 act between brackets 80 on the armature and projections 70 on the former 66 of the coil 54 which is also located by engaging the walls 50. The coil former 64 is urged against the magnet frame 56 and the armature against a stop 64 projecting from the wall 13. A plate 84 attached to the armature has three fingers 86 which engage in slots 44 in the plungers 28 and may be individually adjusted by bending to allow for contact wear. When the contactor is energized the frame 56 rocks on the ends 76 to align itself with the attracted armature. Shading rings 65 are included on the armature pole faces.
Patent GB-956881-A (GB)
Title: Treatment of molten ferrous metal
Inventor: COOK LESLIE
IPC: C21C5/32
Filed: 1961-11-08
Abstract: In a process for refining ferrous metal by blowing with a stream of oxygen or oxygen-rich gas supplied through a lance or nozzle, liquid water in finely divided form is added to the gas before it contacts the molten metal.
Patent GB-1162824-A (GB)
Title: Flame Failure Safety System
IPC: F23N5/08
Filed: 1966-09-07
Abstract: 1,162,824. Controlling burners. HONEYWELL Inc. 7 Sept., 1966 [7 Sept., 1965; 3 Feb., 1966], No. 40048/66. Heading F4T. In a multiple burner control system each burner has a flame-detecting means with an input in the form of a photo-electric cell 23 . . . 26 and an output in the form of a flame relay B . . . E each including a normally closed switch and a normally open switch of which the normally open switches are connected in series to the winding of a relay A having a normally open switch A1 connected in parallel with the normally open switch of the manual start controller 13 and the normally closed switch of each flame relay is connected to a flame failure indicator such as neon bulb 30 . . . 33. A lower voltage source 40 provides a sustaining voltage for the neon bulbs which are not ignited by this voltage. When the manual start controller 13 is actuated the source 40 is removed from the bulbs and a main fuel valve 50 is opened and when a flame is established at each of the burners the relays B . . . E are energized to energize relay A to close switch A1 and allow release of controller 13. If one of the burners experiences a flame failure, its relay normally closed switch is closed to apply a start voltage pulse to its neon bulb and the open switch deenergizes relay A thus opening the fuel valve 50. In a modification, Fig. 2, the flame failure indicating means comprises a silicon-controlled rectifier 101 . . . 104 which has an initiating voltage applied to the gate thereof and a sustaining voltage applied to the anode thereof. The system may be applied to both unison and sequential pilot-lighting arrangements.
Patent GB-1478706-A (GB)
Title: Cover folder
IPC: B42C7/00
Filed: 1974-09-13
Abstract: 1478706 Scoring and bending sheets McCAIN MFG CORP 13 Sept 1974 40123/74 Heading B6J  A sheet separated from the bottom of a pile by oscillating suction grippers 32 and forwarded into the nip of belts 62 co-operating with belts 61 on rollers 60 is scored by co-operating discs 80 and 81, Fig. 7, folded about the score line by co-operating belts 75 and 76, Fig. 9 and the folded cheeks compressed along the fold by nip rollers 78 and 79, Fig. 6. The scoring discs comprise an unyielding annulus 84 and a yielding annulus 85. The cheeks 86 and 87 are separable so that the yielding annulus may be replaced by an unyielding annulus. Replacement of annulus 84 on the other disc by a yielding annulus will then cause the score line to be formed on the reverse side of the sheet. The belts 75 and 76 comprise co-operating forming elements 121 and 126 to fold the sheet along the score line. At the downstream end of the belts these elements are closer together so that the sheet is progressively folded. Downstream of the belts is a carriage 180 supporting the nip rollers 78 and 79 for compressing the fold.
Patent GB-1453169-A (GB)
Title: Method of and apparatus for recording a pattern of magnetization on a recording medium
IPC: G11B5/86
Filed: 1974-09-17
Abstract: 1453169 Copying magnetic records INTERNATIONAL BUSINESS MACHINES CORP 17 Sept 1974 [24 Sept 1973] 40381/74 Heading G5R A pattern of magnetization is recorded on a magnetizable medium 16 by bringing into coacting relationship at least a portion of the medium 16 and a master element 10 having a pattern of magnetic and non-magnetic areas thereon, and applying a magnetic field to the master 10 on the side thereof remote from the medium 16 so that the medium is magnetized by the field in areas of the medium overlying non- magnetic areas of the master and is shielded from the field in areas of the medium overlying magnetic areas 12 of the master. To record a required pattern of servo signals on an edge track of a tape 16 a master drum 14 has a corresponding pattern of magnetic 12 and non- magnetic areas produced thereon by etching, engraving or plating soft, high permeability, low coercivity magnetic material on the non- magnetic body of drum 14, said track of tape 16 being uniformly saturation magnetized in a direction at an angle to the tape length by a head 24 having a gap extending obliquely to the tape width whereafter tape 16 is wrapped around about 180 degrees of drum 14 and moves therewith past a permanent magnet or a head 26 giving a constant D.C. field which in the areas of tape 16 overlying said non-magnetic areas on drum 14 effectively reverses the magnetization direction produced by head 24 to thereby record the required pattern on tape 16. A magnetic disc (36), Fig. 6, 7 (not shown), may have servo tracks similarly recorded thereon by first premagnetizing disc (36) using a head (38) with a gap width radially traversing the whole surface area of disc (36) to be recorded, bringing disc (36) into face to face contact with a master disc (32) having discrete magnetic and non-magnetic areas on the surface thereof in a pattern corresponding to that required on disc (36), and rotating discs (32) and (36) together past a head (40) to copy the master pattern on to disc (36). The master may alternatively be of frusto-conical form rotated with its axis radial to disc (36) and its smaller end towards the centre of disc (36).
Patent GB-874979-A (GB)
Title: Alkyl and/or aralkyl substituted aromatic ethers
Filed: 1958-12-16
Abstract: The invention comprises a para-phenoxyphenyl polyether having the general formula <FORM:0874979/IV (b)/1> in which n is 3, 4 or 5, X is a hydrogen atom or an alkyl or aralkyl group, Y is a hydrogen atom or an alkyl or aralkyl group and Z is an alkyl or aralkyl group, at least one of X and Y being an alkyl or aralkyl group and at least one of X, Y and Z having a minimum of two carbon atoms.  Such compounds may be prepared by reaction between an alkali metal salt of a para-hydroxydiphenyl ether with a para-bromodiphenyl ether or by reaction between a para,para1-dibromodiphenyl ether and two molar proportions of an alkali metal phenoxide in which either of the ethers or the ether and the phenoxide together contain the desired alkyl substituents.  The reaction is carried out in the presence of metallic copper, and copper hydroxide or a copper salt.  The ethers containing four and five ether oxygen atoms may be prepared in an analogous manner, e.g. the tetraethers may be prepared by reacting bis(para-phenoxy) benzene with two molecular proportions of an appropriately substituted alkali metal phenoxide or by reacting para-dibromobenzene with two molar proportions of an appropriately substituted alkali metal salt of para-hydroxydiphenyl ether.  The preparation of bis[para-(para1-ethylphenoxy)phenyl]ether is described in an example.  Representative of the many products mentioned are bis[para-(para1-n-propylphenoxy)phenyl]ether; para - di[para1 - (meta1 - tertiary - amylphenoxy) - phenoxy] - benzene; bis[para - (para1 - neopentylphenoxy) phenyl]ether; bis[ortho - ethyl - para-phenoxy-phenyl]ether; para-(para1-octylphenoxy)phenyl para11-toloxyphenyl ether and 4-[para-(41-tertiary-amyl-21,61-dimethyl phenoxy)-phenoxy]-5 - ethyl - 2 - methylphenyl para1 [para11-(211-tertiary butyl-411,611-dimethylphenoxy) -ortho11-isopropylphenoxy] phenyl ether.  Aralkyl groups specified include benzyl, phenethyl and a -cumyl.  The products may be employed as lubricants, hydraulic fluids and heat-transfer fluids.
Patent GB-1152036-A (GB)
Title: Improvements relating to Thermoplastic Sheet Materials
Inventor: SAUL WALTER
IPC: B32B27/00
Filed: 1965-09-24
Abstract: 1,152,036. Coated products. DUNLOP SEMTEX Ltd. 9 Sept., 1966 [24 Sept., 1965], No. 40704/65. Heading B2E. [Also in Division B5] A method of producing patterned thermoplastic sheet material includes the steps of adhering a thermoplastic layer having a printed pattern on one surface to a carrier sheet by means of a clear adhesive, the printed surface of the thermoplastic layer being in contact with the adhesive, and either the thermoplastic layer itself, or a further thermoplastic layer applied to the non-printed surface thereof, containing a blowing agent, the further thermoplastic layer being applied as a plastisol containing a blowing agent, heating the assembly sufficiently to decompose the blowing agent and stripping from the carrier sheet the patterned thermoplastic sheet material having a clear surface layer derived from the adhesive. Preferably the thermoplastic layer and/or the further thermoplastic layer is of vinyl chloride resin e.g. polyvinyl chloride. When the cellular underlayer, formed by the layer containing the blowing agent, is the lowermost layer, the product stripped from the carrier sheet may be attached to a backing material such as a flooring felt saturated with a bitumen or resin and coated with an acrylic emulsion, or a thermoplastic backing material based on a polyvinyl chloride binder. The carrier sheet is preferably an endless steel belt and the clear adhesive is preferably a polyvinyl chloride plastisol. The plastisol is spread or roller coated on the carrier sheet and may be semi-gelled by application of infra-red heat prior to application of the printed layer. Heat may be applied to the assembly of carrier sheet, adhesive and printed thermoplastic expandible layer in an infra-red or dielectric type oven having two or more different temperature zones. A cooling fluid may be directed against the laminate after heating. The printed cellular sheets obtained may be laminated, before or after stripping of the endless carrier sheet, to a backing material by passing the two layers between the nip of heated rollers, The adhesive composition may contain a plasticizer and stabiliser and the expandible sheet may contain a plasticizer, stabilizer, and pigment as well as a blowing agent. Quantitative examples are given.
Patent GB-1079108-A (GB)
Title: Process for the production of high polymers containing fluorine
IPC: C08F4/32
Filed: 1964-10-07
Abstract: Fluorine-containing high polymers are prepared by polymerizing vinylidene fluoride optionally with one or more other fluorinesubstituted olefins at 0 DEG  to 110 DEG  C. using as catalyst a dialkyl peroxy carbonate of formula <FORM:1079108/C3/1> where R and R1 are alkyl groups containing 1 to 6 carbon atoms. Specified comonomers are vinyl fluoride, vinylidene chlorofluoride, tetrafluoroethylene and hexafluoropropylene.  In the catalyst R and R1 may be methyl, ethyl, propyl, butyl, pentyl and hexyl. Polymerization may be effected in bulk or in aqueous suspension. Examples describe the polymerization in aqueous suspension in the presence of methyl cellulose and diisopropyl peroxydicarbonate of (1) vinylidene fluoride, and (3) a mixture of vinylidene fluoride and vinylidene chlorofluoride; and the bulk polymerization of (2) vinylidene fluoride in the presence of t.-butylperoxy isopropyl carbonate.
Patent GB-893485-A (GB)
Title: Method and apparatus for separating particles into fractions of particles of different settling rates or specific gravities
IPC: B04C9/00
Filed: 1958-12-19
Abstract: 893,485. Centrifugal separators. STAMICARBON N.V. Dec. 19, 1958 [Dec. 20, 1957], No. 41120/58. Class 23. Solids are separated into fractions in a hydrocyclone 12 which is fed at a constant pressure with suspension containing the solids from a tank 4. The tank has compartments 3, 6 supplied with suspension from a container 1. The solids are supplied to the compartment 3 at A. The compartment 6 is permitted to overflow at 13 and has an opening 7 connecting the compartments. The size of the opening is chosen so that solids are prevented from passing from the compartment 3 to the compartment 6. The fractions B, C are drained on sieves 14, 15 and washed in seives 16, 17. The overflow and the suspension drained through the sieves 14, 15 are passed to a tank 18. The diluted suspension from the sieves 16, 17 passes to a separator 19 which discharges suspension to the tank 18, water to the sieves 16, 17 and fine particles D to waste. Suspension from the tank 18 is returned to the feed. The opening 7 may be adjustable.
Patent GB-1440997-A (GB)
Title: Highly absorbent spring unit
IPC: F16F3/10
Filed: 1973-08-31
Abstract: 1440997 Spring units METZELER AG 31 Aug 1973 [9 Sept 1972] 41161/73 Heading F2S A spring unit comprises a disc-like layer of rubber 26 between two plates 20, 21, and having at least one cavity 13 extending between the plates 20, 21, which cavity accommodates a spring element 24 which bears against at least one of the plates 20, 21, the spring element 24 having a natural length greater than the distance between the plates 20, 21 along the axis of the cavity 13. The spring element 24 may locate on projections 22, 23 or alternatively, as in Fig. 1 (not shown) may be conical with its larger end located as in Fig. 2 and its smaller end passing through an opening in the other plate and locating in the recess of the projection in a second, similar spring unit in contact with the first. The cavity 13 may be frusto-conical and the rubber layer 26 may be vulcanized to the plates.