baber/WOPTO huggingface dataset:
Patent GB-445559-A (GB)
Title: Improvements relating to controlling valves for fluid systems
IPC: F15B13/04
Filed: 1934-10-10
Abstract: 445,559. Valves. DOWTY, G. H., 17, Lansdown Crescent, Cheltenham. Oct. 10, 1934, No. 29050. [Class 135] In control valve apparatus of the kind comprising a pair of two-valve units 7, 14, one valve 14 of each unit being opened through a mechanical interconnection such as the push rods 17 by the closing of the other valve 7 of the unit, and corresponding valves 7, 7 or 14, 14 in each unit of the pair being oppositely operated by a common mechanical operating means such as the spindle 23, all the valves are resiliently loaded non-return valves. Fig. 2 shows such a pair of units. A similar pair of units is arranged in a parallel plane in the same block 4, both pairs being shown in end elevation in Fig. 1. The block 4 has four bores each providing an upper valve chamber 5 with a seat 8 for a ball valve 7, and a lower valve chamber 6 with a seat 13 for a ball valve 14. The chambers 5, 6 each communicate alternatelv with intermediate chambers 12. The two front sets of valves 7, 14, Fig. 1, which are corresponding valves in different pairs, are depressed together by a cam 22 acting through a stiff' blade spring 19 on push rods 9. The blade spring 19 is anchored at 20 and rests on a bar 21. An operating lever 24 is secured on the spindle 23. Springs 15 return the valves 7, 14 to their open and closed positions respectively. The four rear valves are actuated in the same way, but their actuating cam 27 is at an angle to the cam 22 on the spindle 23 so that the front valves 7 are closed whilst the rear ones are open and vice versa. All the springs 15, 19 yield to allow fluid to pass the valves on overload. All four chambers 5 are in open communication by means of a bore 25, and front and rear chambers communicate in pairs by bores 28. The rear chambers 6 are closed by plugs 29 and the front ones have unions 16. In the application of the device as a reversing valve between a double-acting pump and two double-acting jacks, the pump discharges are connected to the unions 16, and the two sides of each jack to the front and rear chambers 12 on each side of the block 4 respectively. If only one jack were to be operated, the front and rear valves 7, 14 on one side of the block would be dispensed with. A modification of this kind is shown in which the push rods 9 are dispensed with and the cams 22, 27 are enclosed in a bore in the block and act on the valves 7 through two telescopically engaging cylinders pressed apart by stiff coil springs which yield to allow fluid to pass on overload.
Patent GB-1384613-A (GB)
Title: Polyurethanes
IPC: C08G18/66
Filed: 1972-06-21
Abstract: 1384613 Polyurethane-urea elastomers E I DU PONT DE NEMOURS & CO 21 June 1972 [22 June 1971] 29145/72 Heading C3R Polyurethane-urea elastomers are prepared by reacting 4,41-methylene bis-(cyclohexyl isocyanate), containing at least 60% of the transtrans isomer with a polyol and an aromatic polyamine free of negative substituents in any order and curing the resulting elastomer by contact with water, the diisocyanate, polyol, polyamine and water being used in proportions such that (a) there are 1À4 equivalents of diisocyanate per equivalent of polyol, (b) the polyamine is provided in an amount of 65 to 98% of the excess isocyanate equivalents over the polyol equivalents and (c) sufficient water is provided to react with the excess equivalents of isocyanate groups over the equivalents of polyol and polyamine. The elastomer is preferably prepared by reacting the diioscyanate and polyol to form an NCO-terminated prepolymer, reacting the prepolymer with the polyamine and curing the resulting elastomer by exposing it to an atmosphere having a relative humidity of at least 30%. The polyol may be a polyether or polyester glycol and the polyamine 4,4<SP>1</SP>-methylene dianiline or tolylene diamine. The elastomers may be used as gaskets, coatings for pneumatic conveyers and shoots, conveyer belts, and in potting and encapsulation applications.
Patent GB-1382940-A (GB)
Title: Heterocyclic benzamide compounds processes for making them and compo sitions containing them
IPC: C07D211/28
Filed: 1973-06-20
Abstract: 1382940 (2-Alkoxy-5-sulphanoyl benzamido) heterocyclic derivatives DELMAR CHEMICALS Ltd 20 June 1973 [23 June 1972] 29192/73 Heading C2C Compounds I  in which X is sulphanoyl or mono or di- (C 1-6  alkyl) sulphanoyl, R and R 3  are C 1-6  alkyl, n is 0, 1 or 2 and m is 1 or 2 are prepared by chlorosulphonation of a compound of Formula I in which X is hydrogen or an acid addition salt thereof to form a compound of Formula I in which X is Cl-SO 2 -followed by anmonolysis or aminolysis to form the 5-sulphamoyl or 5- mono or di- (C 1-6  alkyl) sulphamoyl group. Compounds I may be converted to the corresponding N- oxide or quaternary ammonium or acid addition salt. 1 - Ethyl - 2 - (2 - methoxy - 5 - sulphamoyl benzamido methyl)-pyrrolidine is prepared. Compounds of Formula I in which X is hydrogen are prepared by reacting (1) a 2- C 1-6  alkoxy benzoic acid or its acid chloride with a heterocyclic amine preferably in the presence of a condensing agent (silicon tetrachloride or a diimide) or (2) salicylic acid or its acid chloride with amine IV and subsequently alkylating at the 2-position. Reference has been directed by the Comptroller to Specification 1,088,531.
Patent GB-1393476-A (GB)
Title: Tape roll loading and centering device for tape transport
IPC: G11B15/67
Filed: 1973-06-20
Abstract: 1393476 Tape transports; loading tape reels AMERICAN VIDEONETICS CORP 20 June 1973 [31 July 1972] 29235/73 Heading G5R Tape apparatus of the type in which tape is transported between reels 13, 14 by a capstan 11 contacting the reel peripheries, the reels 13, 14 being mounted on carriage 17 movable to maintain this contact, comprises reel-locating means on carriage 17 including a turntable 43 and a spindle whose end 66 is axially slidable whereby during loading the raised spindle end 66 first engages in a complementary central opening 53 in the reel hub 46, the reel then being depressed so that spindle end 66 is lowered against spring bias 68 and the hub 46 seats on the turntable 43. As shown, each reel is contained in a cartridge 26, which has an open side wall 49 permitting the entry of capstan tyre 12, and a lower opening 48 into which a hub shoulder 57 is pressed by a lead spring 56. The cartridge 26 is loaded through a slot 24 and between guide blocks 71, 72 on the carriage 17, so that hub opening 53 locates on the spindle end 66. Opening a slot cover 27 moves one carriage 17 by means of a link 59 against spring bias 16 towards the slot 24 and away from the capstan 11, and when the carriage 17 is returned on closure of the cover, clamps 74, 76 are actuated by means of spring- loaded pins (79), Fig. 7 (not shown) engaging cam surfaces 86 to press the upper surface of the cartridge downwardly. The spindle end 66 is thus depressed and the hub 46 seats on the turntable 43 (Fig. 6, not shown), a pin 55 on the latter engaging one of a plurality of holes 50 in the hub, and a stud 34 locating in a cartridge opening 35. The hub 46 is also raised in the cartridge against spring 56, to free it from lower cartridge wall 52. An autothreading arrangement is also provided.
Patent GB-242462-A (GB)
Title: Improvements relating to garment hangers
IPC: A47G25/20
Filed: 1924-12-05
Abstract: 242,462. Timing's, S. Dec. 5, 1924. Coat and like FIC.I. hangers.-A device for supporting the collar of the coat comprises a separate, plate, frame, &c. having means for mounting it upon a hanger. The frame 1, which may be formed of wire, is provided with a bracket 7 with a hole for the hook 10, and with notches fitting over the hanger 6. The edges 3 are turned over.
Patent GB-439529-A (GB)
Title: Shaped articles and methods and apparatus for making same
IPC: C04B35/563
Filed: 1934-10-12
Abstract: Shaped articles, such as blasting-nozzles, dies for wire drawing, and bearings, are formed of a substantially continuous phase of boron carbide conforming substantially to the formula B4C.  The boron carbide is in a crystalline form and is free from parting planes of graphite and other impurities.  The boron carbide is heated in an inert atmosphere in a graphite mould under pressure to a temperature at which it will soften but which is below the melting point. Specification 415,392 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of cutting tools for lathes, milling machines, &c., from boron carbide.  This subject-matter does not appear in the Specification as accepted.
Patent GB-831743-A (GB)
Title: Improvements in band knife grinding devices
Inventor: BEECROFT HENRY
IPC: B24B3/56
Filed: 1956-09-25
Abstract: 831,743. Sharpening band knives in situ. BEECROFT & CO. Ltd., T. Sept. 24, 1957 [Sept. 25, 1956], No. 29272/56. Class 60. A device for sharpening a band knife comprises a pair of freely-rotatable grinding wheels 12 which are carried on mountings 6 relatively adjustable simultaneously on axially-aligned carriers 3 on a bracket 1 by means of a manuallyoperated wheel-adjusting element 15 disposed centrally of the mountings, and means for adjusting the device relative to the knife to be sharpened. The grinding wheels are mounted on spindles 11 carried in the mountings 6 which are formed with a slide 7 co-operating with guides 8 on the bracket and disposed on the carriers 3 formed as spindles having enlarged portions 4 shaped at their inner ends with conical or curved faces 5. The spindles are disposed in sleeves 2 on the bracket and provided with springs 10 which urge the mountings against the portions 4 which are, in turn, urged against a conical or truncated conical member 15 carried on a hand-operated rod 14 in screw-threaded engagement with the bracket 1. The rod 14 is housed in a sleeve 16 which is secured to the bracket and axially-movable in a housing 18 by means of a bush 19 rotatablymounted in the housing and in screw-threaded engagement with the sleeve. The spacing between the grinding wheels can thus be varied by axially-adjusting the conical member 15 by means of the hand-operated rod 14 and the bracket carrying the wheels adjusted by rotation of the bush 19 ; the screw-threads on both the rod and bush are preferably microthreads and resilient or other means may be provided to compensate for areas between the bush and housing. Rotation of the bracket 1 is prevented by a pin 22 engaging a hole in the housing. The rod 14 may be extended and supported in a bearing bracket and be of twopart construction to permit axial adjustment. The grinding wheel spindles are in parallel planes and inclined outwards in the downward direction, and the wheels are verticallydisplaced from each other. In other embodiments, the mountings may be disposed on right and left-hand screw-threaded spindles rotated by bevel gearing.
Patent GB-171105-A (GB)
Title: Improvements in driving gear for the cam shafts of internal combustion engines
IPC: F02B75/22
Filed: 1921-11-03
Abstract: 171,105. Wills, C. H. Nov. 3, 1920, [Convention date]. Valve-gear.-A drive for overhead cam shafts 10 of V-engines comprises a countershaft 8, driven by two-to-one gearing from the crank shaft 7 and arranged at the base of the V so that the larger gear wheel on the shaft 8 does not extend beyond the engine assembly, and intermediate shafts 9 carrying bevel wheels 14, 15 gearing with larger bevel wheels 13, 16 on the shafts 8, 10 respectively.
Patent GB-723722-A (GB)
Title: Metal window or door frames
Inventor: WATSON GEORGE
IPC: E06B3/964
Filed: 1953-11-16
Abstract: 723,722. Metal window and door frames. HOPE & SONS, Ltd., H. Nov. 16,1953 [Nov. 20, 1952], No. 29317/52. Class 20(3).  Transverse T-section metal bars c are secured to metal window, or door, frames formed of tubular bars a of rectangular section by means of attachment pieces d secured to the ends of the bars c and adapted to fit into corresponding openings f in the inner faces of the bars a. The attachment pieces d, secured by tenons c to the transverse bars, abut against, and are screwed to, posts g screwed to the inner faces of the bars a. In alternative arrangements the posts g are omitted, fixing screws being inserted through the attachment pieces d for engagement with screwed holes in the opposite side of the frame member, or vice-versa. The end portions of the bars c are cut away to enable the members to fit together evenly.
Patent GB-1412552-A (GB)
Title: Diaminobenzoquinone dyes
IPC: A61K8/41
Filed: 1973-06-20
Abstract: 1412552 Diaminobenzoquinone dyes L' OREAL 20 June 1973 [21 June 1972 23 Jan 1973] 29325/73 Heading C4P [Also in Division D1] Diaminobenzoquinone dyes have the general formula in which R 1 , R 2 , R 3  and R 4 , which may be identical or different, each represents H, halogen, lower alkyl or alkoxy; R 5  is H, lower alkyl lower alkyl substd. by one or more OH groups, or an amino-alkyl radical in which n is 2 to 6, and R 8  and R 9 , which may be identical or different, each represents H, lower alkyl, lower hydroxyalkyl or lower acylamino alkyl, or R 8  and R 9 , together with the N, form a 6-membered heterocyclic ring, optionally containing an oxygen atom; Z represents (a) OH or (b) -NR 6 R 7  in which R 6  and R 7 , which may be identical or different, each represents H, lower alky], lower hydroxyalkyl, lower carbamylalkyl, lower acylaminoalkyl, lower mesylaminoalkyl, lower benzoylaminoalkyl, or an aminoalkyl radical -(CH 2 ) n -NR 10 R 11  wherein n is 2 to 6, and R 10  and R 11 , which may be identical or different, each represents lower alkyl, or lower alkyl substd. by one or more OH groups or acylamino radicals, or R 10  and R 11 , together with the N, form a 6-membered heterocyclic ring, optionally containing an oxygen atom; or R 6  and R 7 , together with the N atom to which they are attached, form morpholino ring; or an inorganic or organic acid addition salt thereof, or a quaternary ammonium salt thereof. The compounds may be used in compositions for dyeing keratin and hair, comprising water or an aqueous-alcoholic solution and at least one compound (I). They are used both as direct and as oxidation dyes, and give a vanity of green shades, as well as bronze; verbena, beige, grey-steel blue, violine, seal, and camomile shades, all with a metallic sheen.
Patent GB-1114664-A (GB)
Title: A method for the extraction of materials embedded in a graphite body
Inventor: BILDSTEIN HUBERT
IPC: G21C19/48
Filed: 1966-06-30
Abstract: <PICT:1114664/C1/1> Uranium and/or thorium carbide and/or oxide and fission products embedded in a graphite body are extracted by heating the body and subjecting it to the action of the vapour of an elementary halogen or a halogen compound whereby the graphite disintegrates and said substances may be removed.  Elementary bromine, fluorine, or iodine may be used, or the compounds bromine chloride or iodine chloride; reference is also made to compounds of bromine and carbon.  The destruction of the graphite structure may be completed by the application of pressure and the embedded material removed by leaching with acid or by treatment with a reagent which forms volatile compounds.  Heating of spent coated nuclear fuel particles to 2500 DEG -3000 DEG  C. serves to break down the coating on the fuel particles.  In the illustrated embodiment said particles embedded in graphite body 3 contained in quartz tube 1, before or after such heat treatment are heated with elementary bromine at 200 DEG -300 DEG  C. by means of removable oven 4.  Thereafter the fuel is heated at 600 DEG -1100 DEG  C. in chlorine gas admitted at 11, or in nitrogen or an inert gas saturated with CCl4; S2Cl2 may be added to aid the formation of volatile chlorides.  Uranium and thorium chlorides sublime together with some of the fission products and condense in bulb 8.  Reference is also made to embedded particles consisting of molybdenum coated with Al2O3.
Patent GB-986208-A (GB)
Title: Improvements in and relating to filters
Inventor: KNOWLES PETER ALBERT
IPC: B01D29/41
Filed: 1962-07-31
Abstract: 986,208. Filter leaf unit. BRITISH FILTERS Ltd. May 10, 1963 [July 31, 1962], No. 29445/62. Heading B1D. A filter leaf unit comprises two discs of expanded or perforated metal or metal gauze, each disc having on one side of its peripheral margin a flat edging ring, which is welded, soldered, glued or otherwise attached thereto, and an encircling sealing ring permanently secured, e.g. by welding, to one of the edging rings. In the embodiment shown, a disc a of gauze is welded at its periphery to an edging ring b the periphery of which in turn is welded at c to a sealing ring d. The periphery of a central hole in the disc a is welded to the flange e of a sleeve f and a further disc g is provided to the periphery of which a further edging ring h is welded, a central edging ring i being welded to the periphery of a central hole in the disc g. Screws j are provided for detachably clamping the discs a and g to the opposite faces of a filtering medium (not shown) disposed between the discs.
Patent GB-334734-A (GB)
Title: Improvements in rolling mills
IPC: B21B35/10
Filed: 1929-09-28
Abstract: 334,734. Chamier, F. Sept. 28, 1929. No Patent granted (Sealing fee not paid). Rolling flanged bars. - Mills, for rolling I- beams and similar sections, of the type in which two vertical rollers are provided in each press, arranged between the two horizontal rollers, have the vertical rollers 13 journalled in supports 17 that. can work horizontally about pivots 24 as controlled by wedges 27. The pivots are adjustably mounted in bars 26 adjustably secured to the main housing to permit adjustment in a vertical plane. The rollers 13 are mounted on ball and roller bearings as shown, packing being provided at 21 both in the roll itself and in a scale &c. excluding cap 22. The operative surface of the rolls 11 may be formed on interchangeable rings.
Patent GB-533417-A (GB)
Title: Improvements in or relating to apparatus for heating moldable materials
IPC: B29C45/20
Filed: 1939-11-06
Abstract: 533,417. Electric resistance heating. STEVENS, A. H. (Reed-Prentice Corporation). Nov. 6, 1939, No. 29476. [Class 39 (iii)] Apparatus for heating formaldehyde resins or other mouldable material previous to moulding comprises a cylindrical steel block 10 forming part of the secondary circuit of a transformer and having a number of longitudinal small bore passages 20 for the material and radial slits adjacent the passages to increase the uniformity of the heating. The sides of a U-shaped copper strip 32 incorporated as the secondary of a stepdown transformer are held between the steel block and heads 14, 27 for the admission and discharge of the mouldable material.
Patent GB-952021-A (GB)
Title: Preventation of cold flow in cis-polybutadiene
IPC: C08C19/00
Filed: 1962-08-01
Abstract: Cis-polybutadiene is heated in the presence of an organic peroxide or hydroperoxide there being present 0.075 to 1.75 millimoles of peroxide per 100 grams cis-polybutadiene. Maleic acid or anhydride in amount from 0.015 to 1.2 parts per 100 polybutadiene may also be present. The preferred temperature of heating is 250 to 350 DEG F. while a long list of peroxides includes benzoyl peroxide, di-t-butyl peroxide, dicumyl peroxide, 2-5-bis (t-butylperoxy)- 2-5 - di - methylhexane cumene hydroperoxide, p-chlorobenzoyl peroxide diisopropylbenzene hydroperoxide and tert.- butyl hydroperoxide. A metal oxide e.g. zinc, magnesium or lead may also be present.
Patent GB-1314383-A (GB)
Title: Reverse-speed blocking device for change speed gear arrangement
IPC: F16H61/16
Filed: 1970-06-18
Abstract: 1314383 Change-speed control CHRYSLER FRANCE 18 June 1970 [3 July 1969] 29637/70 Heading F2D  In an automotive vehicle C.S.G., engagement of reverse speed is automatically prevented during forward drive by plungers D which are carried in radial bores 10 of a drum B fast on a transmission shaft T and outwardly centrifugally moved to the position D 1  to block movement of a sliding gear selection sleeve MB, actuated by a control fork F, into reverse, the plungers D being radially inwardly biased by a spiral spring R such that when the vehicle and hence the transmission shaft T are brought to a stationary condition, the plungers D are radially withdrawn, i.e. retracted into the drum B to seat on a flanged disc A fast on the shaft T whereby the selection sleeve MB may now be moved over the plunger bores 10 into the reverse speed position. Additionally, or alternatively, the plungers D may be magnetized for inward radial bias into engagement with the disc A formed by a magnetic sheet. Alternatively to mounting the plungers D in bores 10, they may be hingedly mounted on pins parallel with and driven by the shaft T, and carried by flexible laminae.
Patent GB-1472349-A (GB)
Title: Mould opening and locking mechanism in an injection moulding machine
IPC: B29C37/00
Filed: 1975-07-15
Abstract: 1472349 Mould opening and closing unit S TSUTSUMI 15 July 1975 [17 July 1974] 29639/75 Heading B5A A mould clamping unit for an injection moulding machine comprises a fixed mould platen 2, a movable mould platen 1 sliding on tie bars 5, and a thrust member 8 which is movable with the movable platen 1 and can be fixed in position on the tie bars 5; a thrust means 11 acting between the thrust member 8 and the movable platen 1 for thrusting the platens together and apart when the thrust member 8 is fixed to the tie bars, and means for fixing the thrust member to the tie bars 5 comprising fixed abutments 12 on the tie bars and movable locking members 19, 21 on the thrust member 8 some of which (19) can be moved into engagement with the abutments 12 on the side nearest the movable platen 1 to enable the thrust means 11 to press the movable platen 1 to the fixed platen 2, and some of which (21) can be moved into engagement on the other side of the abutment to enable the thrust means 11 to force the platens apart after moulding. In Fig. 4 the mould has been closed by a long stroke cylinder 6, the locking members 19 have been rotated into position between the abutments 12 on the tie bars 5 and the thrust plate 8, and the toggle clamp 11 has been operated by hydraulic cylinder 9 to clamp the mould. After moulding the toggle clamp 11 is released, the locking members 19 are rotated clear of the abutments 12, and the locking members 20 are rotated into position between the abutments 12 and plates 13 attached to the plate 8 by pins 14 as shown in Fig. 6. Thrust is then applied in the reverse direction by the toggle clamp via abutments 12 to part the mould halves. The mould is opened fully by cylinder 6, the abutments 12 passing through holes 15 in the plate 8 (Fig. 1, not shown). A certain degree of play a is required between the abutments 12 and the locking members 19, 20 to enable the thrust on them to be relieved when they are moved into and out of position. The locking members 19, 20 may be rotated by cylinders 21<SP>1</SP>, Fig. 9, or by rollers 26, 27, Fig. 7, engaging cams 24, 25 which are driven by gearing mounted on a threaded extension 23 of the piston rod of the cylinder 9 to give automatic rotation of the locking members 19, 20 with operation of the clamping cylinder 9. A guide linkage 28, 29, Fig. 8, is attached to the arms of the members 19, 20 remote from the rollers 26, 27. In Fig. 9 the toggle linkage 11 has been replaced by short stroke cylinders 34 acting between the fixed platen 2 and the tie bars 5.