baber/WOPTO huggingface dataset:
Patent GB-1019359-A (GB)
Title: Boundary layer control means and method of producing the same
IPC: B64F5/00
Filed: 1963-12-24
Abstract: 1,019,359. Grinding and polishing; making turbine blades, vehicles, aircraft and jet engine parts; embossing. H. PAPST. Dec. 24, 1963 [Dec. 24, 1962; Jan. 14, 1963; July 6, 1963], No. 50844/63. Headings B3A, B3D, B3K and B3Q. [Also in Divisions B7, F1 and F2] A slotted sheet, e.g. of aluminium, forming the skin of a body immersed in a relatively flowing fluid, is formed by embossing ridges 12, Fig. 3, in the sheet by tools, one having ridges 1c and the other corresponding grooves 3. Each ridge is of a depth exceeding the thickness of the sheet, so that when it is milled, ground, or planed off, a slot 10, Fig. 4, is left having sloping sides 6. The sheet may be stiffened by webs 8 connecting the opposed sides of a slot. In a modification, Fig. 5 (not shown), the upper die or dies 1A may be guided by one or more arms 11 co-operating with vertical tracks 11a. The sheet may be laid over framework to produce an aircraft wing, fuselage, or nacelle, or a turbine or compressor blade, or may form a panel in the skin of a rail or road vehicle, ship, or jet propulsion engine pod. As an alternative to the tools 1c, a roller of suitable section may be used to press the sheet into the grooves 3 (Fig. 6, not shown). The ridges may be removed before or after forming of the sheet to its finished shape. The sheet may be inset into a solid turbine or compressor blades, so that the slots overlie channels in the blade. Fig. 7 shows a suitable hand-controlled milling machine comprising a cutter 25a between guide rollers 26, driven through gears 25d and shaft 25c by a motor (not shown) in one of the two handles 27 used to traverse the machine. Fig. 8 shows a suitable grinding or polishing machine, comprising an endless grinding or polishing belt 30b trained around rollers 30a, 32, 32a, of which one is driven. A fourth roller 30c on a spring- biased arm 30d tensions the belt. An adjustable member 31 applies the belt to the sheet, a member of appropriate configuration being used for each part of the sheet. Alternatively, the member may be elastically deformable so as to follow the shape of the sheet.
Patent GB-1343118-A (GB)
Title: Salicylic acid derivatives
IPC: C07C201/16
Filed: 1970-10-27
Abstract: 1343118 Propionylsalicylic acid RECORDATI SA CHEMICAL & PHARMACEUTICAL CO 27 Oct 1970 [1 Aug 1970] 50978/70 Heading C2C The invention comprises 3-propionylsalicylic acid. The compound is prepared by isomerizing 2-hydroxy-3-allylpropiophenone to 2-hydroxy- 3-propenylpropionphenone, oxidizing this with ozone in a reaction medium consisting of a mixture of formic and acetic acids to give 3- propionylsalicylic aldehyde which is subjected to alkaline fusion to give 3-propionylsalicylic acid. The acid may be converted to an ester of 3-methylflavone-8-carboxylic acid with an aminoalcohol by first esterifying the acid with a C 1-4  alkanol, reacting the product with sodium benzoate and benzoyl chloride at 180-190 C. to give a C 1-4  alkyl ester of 3-methylflavone-8- carboxylic acid and either transesterifying this ester with an aminoalcohol or hydrolysing the alkyl ester and esterifying the free acid with an aminoalcohol.
Patent GB-1164439-A (GB)
Title: Improvements relating to the Continuous Ringless Spinning of Textile Fibres
IPC: D01H4/40
Filed: 1966-11-16
Abstract: 1,164,439. Break-spinning apparatus. VYZKUMNY USTAV BAVLNARSKY; 16 Nov., 1966 [1 Dec; 1965], No. 51283/66. Heading D1D. The cross-section of the channel through which yarn is delivered from the spinning- chamber of break-spinning apparatus, first narrows at 7 and then widens at 11 in the direction in which the yarn travels when 'being withdrawn from the chamber. A channel of this form provides a guiding-surface for the yarn as it leaves the chamber and facilitates the introduction of a length of yarn for priming at starting or restarting after a break, the gradually reducing cross-section of the part 11 viewed in the direction of the entering yarn giving rise to a gradually increasing velocity of the air being drawn into the chamber.
Patent GB-1128380-A (GB)
Title: Tunnelling machine
IPC: E21D9/10
Filed: 1966-11-16
Abstract: 1,128,380. Tunnelling machines. S & M CONSTRUCTORS Inc. 16 Nov., 1966 [11 April, 1966], No. 51423/66. Heading E1F. In a tunnelling machine a rotatable cutter head is secured by blocks of elastomeric material to a drive shaft extending axially through a frame to drive means secured to the rear of the frame, which is reciprocably, but non rotatably, secured by shock absorbing torsion linkages to a second frame, that can be anchored by longitudinally spaced sets of feet against the wall of the tunnel being formed by the machine.
Patent GB-1119020-A (GB)
Title: Improvements in or relating to pulse generators
IPC: H03K3/02
Filed: 1966-11-17
Abstract: 1,119,020. Gunn effect devices. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 17 Nov., 1966 [17 Dec., 1965], No. 51534/66. Heading H3T. [Also in Division H1] In a pulse generator comprising a Gunn effect oscillator subjected to a D.C. bias below its critical level, an input pulse having a rise time exceeding the switching time of the oscillator is applied to the oscillater to increase the bias above the critical level so that an output pulse is generated having a duration determined by the transit time of the high-field zone in the oscillator. The input pulse may be applied between the biasing contacts of the oscillator or to an insulated control electrode located between the contacts. If the input pulse is of sufficient length it will generate a train of output pulses. A train of input pulses having a frequency less than the frequency of the oscillator generates a train of output pulses of corresponding frequency.
Patent GB-1163166-A (GB)
Title: An Improved Brassiere
IPC: A41C3/00
Filed: 1967-11-14
Abstract: 1,163,166. Brassiere. BERLEI Ltd. 14 Nov., 1967 [21 Nov., 1966], No. 51681/67. Heading A3V. A brassiere comprises a front panel 2, side panels 7 and back panels 11 all of two-way stretch material having greater elasticity in the direction of arrows 19 than in the direction of arrows 20. The downwardly sloping back panels 11 may be permanently or detachably connected at the centre back and an elastic strap and hook 16 may be provided for securing the brassiere to eg. a girdle. One of the detachable shoulder straps 10 may be used as a halter strap 10a.
Patent GB-1433835-A (GB)
Title: Superhalogenated unsaturated polyesters and process for their production
IPC: C08G63/682
Filed: 1973-11-09
Abstract: 1433835 Halogenated unsaturated polyesters SOLVAY & CIE 9 Nov 1973 [10 Nov 1972] 52151/73 Headings C3P and C3R A super-halogenated unsaturated polyester (P) is made by copolymerizing, in the absence of water or other OH-containing initiator, maleic anhydride, with or without another cyclic organic intramolecular anhydride, with at least one α-epihalohydrin, the mole ratio epihalohydrin/anhydride(s) being from 1 to 2, in the presence of TiHal 4 , where Hal is a halogen, the polyester having average M.W. 300-3000 and possesses a halogen content arising from superhalogenation, i.e. being derived from the TiHal 4 , of 1-35% wt. Hal may comprise Cl and/or Br. The other anhydride may be phthalic, tetrahydrophthalic, tetrabromophthalic, chlorendic, methylnorbornene-dicarboxylic, succinic, glutaric, citraconic, itaconic, or dichloromaleic anhydride. The total halogen content of (P) may be 20-50% wt. 0À001-0À1 mole TiHal 4  may be used per mole [anhydride(s) + epihalohydrin(s)]. The epihalohydrin may comprise epichlorohydrin and/or epibromohydrin. The reaction can be performed by introducing the epihalohydrin gradually into a mixture of the anhydride(s) and the TiHal 4 , e.g. dissolved in benzene, toluene, xylene, chlorobenzene, or 1,2-dichloroethane. The reaction may be performed at 20-150 C. The resultant polyesters (P) may be thermally or catalytically subjected to cis-trans isonerism, e.g. by heating to 100- 250 C., or by use of known catalysts, e.g. halogens, organic acids or acid chlorides, or amines. The resultant degree of isomerism may be 20- 75%. Also present may be conventional additives, including glass fibres or Sb or P compounds as fiameproofers. One or more polyesters (P) may be cross-linked; a mixture comprising one or more polyesters (P) and one or more non- halogenated unsaturated polyesters may be used. The cross-linked resins are self-extinguishing, and are resistant to attack by acids, alkalis, and organic solvents. The cross-linking agent may be e.g. styrene, acrylonitrile, methylmethacrylate, or dialkylphthalate, and benzoyl peroxide or MEK peroxide may be used as catalysts. The resin may be cast into a sheet.
Patent GB-1280739-A (GB)
Title: Improvements in or relating to distance protective systems for intermeshed electrical networks
IPC: H02H7/28
Filed: 1970-11-04
Abstract: 1280739 Protective arrangements SPRECHER & SCHUH AG 4 Nov 1970 [21 Nov 1969] 52344/70 Heading H2K A system for protecting a network in which a fault 18 may be fed from more than one point 3, 4, comprises multi-zone directional impedance relays 14 ... 17 associated with circuit-breakers 9 ... 12 in respective feeders 5, 6, and a central computer 19 connected by transmission lines 20, 21 to all the circuit breakers and relays for adjusting the settings of  the relays in their second and third zones of protection in dependence on the states of the various circuit-breakers. Thus with a fault at 18 supplied only from generator 3, relay 14 would function normally with a time delay appropriate to its second or third zone operation should the relay 16 fail to operate. With a fault at 18 supplied from both generators 2, 3, the relay 14 can function at an apparent higher impedance as, in response to the closing of the circuit-breaker 13, the computer 19 will have changed the settings of the various relays for their second and third zone operation. Each relay may have a current transformer 23 connected to a replica impedance 25, 26, a voltage transformer 22 connected to resistors 27, 28, 29 which determine the three zones, a measuring device 30 with polarizing supply 31, an overourrent starter relay 32 controlling time delay relays 33, 34 which change the tappings to the resistors to select the zone of protection, and relays 34<SP>1</SP>, 35 controlled by the computer.
Patent GB-1381498-A (GB)
Title: Valves and taps
IPC: F16K27/12
Filed: 1971-11-11
Abstract: 1381498 Valves PEGLERS Ltd 6 Nov 1972 [11 Nov 1971] 52438/71 Heading F2V A metallic cover 10, Fig. 1, enclosing the headwork 12 of a valve or tap is located firmly by resilient means 22, e.g. of synthetic plastics material. The means 22 may be inverted, Fig. 2 (not shown). In Figs. 3 to 6 (not shown), the means is formed by a ring having radially inwardly and outwardly directed projections (30, 32) co-operating with the headwork and cover. One or more holes may be provided in the resilient means to prevent accumulation of water thereabove.
Patent GB-1368261-A (GB)
Title: Apparatus for monitoring operation of a reversing blow-out disc
IPC: G21C9/008
Filed: 1971-11-11
Abstract: 1368261 Pressure-relief discs INTERATOM INTERNATIONALE ATOMREAKTORBAU GmbH 11 Nov 1971 [14 Nov 1970] 52513/71 Heading F1D Apparatus in which a blow-out disc 1 presents a convex surface to the space to be relieved of pressure, comprises one or more electrical probes 4, 7 located downstream of the disc 1, the probes being used to monitor information to an operator. The probe 4 is enclosed by a conductive tube 5 from which it is insulated and electrical connections lead to both the probe 4 and tube 5. If probe 4 is located in the buckling region 6 of disc 1, the tube 5, which is readily deformable will be pressed against probe 4 by the disc 1 when it snaps over and is blown out. This causes a short circuit which is monitored to an operator. Alternatively, the probe 4 need not be covered by the tube 5 Fig. 3 (not shown) in which case the probe 4 will be short circuited via the housing of the apparatus when the disc 1 buckles and contacts it. This latter embodiment can also detect leaks of fluid if the fluid is electrically conductive.
Patent GB-1165715-A (GB)
Title: Hydraulic Reciprocating Pumps and Motors
Inventor: NORTH JOHN DUDLEY
IPC: F01B3/00
Filed: 1965-12-16
Abstract: 1,165,715. Reciprocating pumps and motors. BOULTON PAUL AIRCRAFT Ltd. Feb.2, 1967 [Dec.16, 1965], No.53461/65. Heading F1A. A hydraulic pump or motor comprises a revolving cylinder block 16 with separate cylinders 23 welded in longitudinal grooves 22, and pistons 25, 26 with ball ends 27, 28 engaging cam tracks 4, 17 formed from sheet metal pressings. Cam track 4 is welded to housing 1, and cam track 17 is located by housing end cover 3 acting through flange 35 of a stationary valve support 34. A valve plate 46 is located on support 34 by sleeves 42, 43, and by pistons in valve plate recesses (51, 52, Fig.4, not shown), which are connected to valve plate ports 47, 48 and act to bias the valve plate against the cylinder block surface 31, a thrust bearing 55 taking the load. A stub axle 19 supports the valve plate end of block 16 and runs in a plain bearing 18. A tag 54 prevents rotation of the valve support 34. A mounting flange 2 is screwed on housing 1.
Patent GB-1237488-A (GB)
Title: Improvements in selective herbicides
Inventor: BAYNAST REGIS DE
IPC: A01N25/10
Filed: 1969-10-31
Abstract: 1,237,488. Hebicidal emulsions containing thermosetting resins. ESSO CHIMIE. 31 Oct., 1969 [31 Dec., 1968], No. 53493/69. Heading A5E. [Also in Division C3] A solid herbicidal composition containing a selective herbicide is produced by mixing an emulsion of a hydrocarbon and water or of a hydrocarbon and a polar organic liquid or of a mixture of the two emulsions wherein the hydrocarbon forms the dispersed phase, having a selective herbicide dissolved or dispersed therein, with a liquid thermosetting resin with or without a hardener and then allowing the mixture to stand until it solidifies. The selective herbicide may be an ester or salt of 2,4-dichlorophenoxyacetic, of 2-(2 methyl-4-chlorophenoxy)-propionic acid, of 2-methoxy-3,6- dichloroberzoic acid, of 2-ethyl-4-chlorophenoxyacetic acid, triazines, particularly atrazine, or mixtures thereof, and is suitably used in a proportion of 1-30%, preferably 5-20 % by weight, with reference to the weight of the emulsion. Suitable hydrocarbons are gas oils and petroleum distillate fractions whilst the polar organic liquid which may be a polyol, an amide or urea. The thermosetting resin may be a phenolplast or an aminoplast, e.g. a urea formaldehyde resin and resin is incorporated in the emulsion suitably in an amount of from 3-30%, preferably 5-15% by weight. In a preferred method of preparing the emulsion a hydrophilic emulsifying agent is added to water, or to a polar organic liquid, or a mixture thereof and thereafter, with agitation, a liquid hydrocarbon and a lipophilic emulsifier is added. The selective herbicide may be incorporated in the hydrocarbon phase or the polar phase prior to forming the emulsion or may be added to the emulsion.
Patent GB-1215967-A (GB)
Title: Well pipe tongs
IPC: E21B19/16
Filed: 1968-11-12
Abstract: 1,215,967. Well pipe tongs. BYRON JACKSON Inc. 12 Nov., 1968 [4 Dec., 1967; 17 June, 1968], No. 53651/68. Heading B3N. Tong apparatus for making up and breaking out joints in well pipes comprises a back-up tong assembly, Fig. 5, that releasably holds a length of well pipe protruding from a well bore and a tong assembly, Fig. 12, which releasably holds and rotates a co-operating length of pipe. The back-up tong assembly comprises a support structure 202 connected to a stationary ring 217 by ears 211. Jaws 230 are slidably mounted in a ring (220), Fig. 6 (not shown), which comprises generally triangular plates 221 and 222. The jaws slide in pads 256 (257) which allow the jaws to cock relative to them. A ridge 251 of the ring 217 forms a cam whereby the jaws 230 can be positively moved inwardly or outwardly by cam followers 252 and 253. Follower 253 is removable to allow the removal of the jaws 230. To move the jaws the ring (220) is rotated by a double acting ram 266. The ram can be position at abutment 282 or abutment 281 so that the pipe 2 is gripped such that any tendency to rotate during making up or breaking out presses the jaws harder against the pipe. Pivotal movement of the ram is by a double acting ram (283), Fig. 11 (not shown), operating on the pivoted end of the ram 266 via a lost motion means and a lever. The ram 266 is locked in position by a latch pin 289 engaging either of openings 290 (292), the latch pin is automatically releasable from the openings. The tong assembly comprises an inner ring (410), Fig. 13 (not shown), in which jaws 411 are slidably mounted, and a driven outer ring (409). The driven ring has a cam ridge by which cam followers 443 and (452) positively move the jaws into and out of engagement with a pipe 1. Inner ring (410) has to be kept stationary to obtain movement of the jaws, this is achieved by a brake band 470 which has anchors 473 and 474 which engage pins 475 and 476 which project down from a stationary support plate 477. When the jaws are in engagement with the pipe both rings (410) and (409) rotate together. To stop excessive movement of the jaws in either direction a reverse stop means is incorporated in the tong assembly. The stop means comprises a stop member 482 which can be positioned in either of two positions in which a member 481 engages the stop member 482 to stop relative movement between the inner and outer rings. Movement of the stop member 482 from one position to the other is caused by an abutment means 500 which has a fluid operated retractable projection which engages in an arcuate depression, in member 482, and which has arcuate wall sections 514 and 515.
Patent GB-1128088-A (GB)
Title: Hydrocarbon conversion catalyst
Inventor: ADDECOTT KEITH SAMUEL BROOKS
IPC: B01J27/06
Filed: 1966-12-01
Abstract: 1,128,088. Hydrocarbon conversion. ESSO RESEARCH & ENG. CO. 1 Dec., 1966, No. 53795/66. Heading C5E. A process for the conversion of hydrocarbons comprises passing a hydrocarbon in vapour form over basic magnesium chloride at elevated temperature. This catalyst may be used for isomerization, cyclization, or oxidative dehydro. genation of an aliphatic or cycloaliphatic hydrocarbon. Examples are given of the isomerization at 200-500‹ C. of hexene-1, 2,3-dimethylbutene- 1 and cyclohexene. Oxidative dehydrogenation may be carried out at 300-600‹ C. in the presence of a hydrogen acceptor such as O 2  or O 2 /N 2  mixture. The conversions of butene-1 to butadiene-1,3 and of cyclohexane to cyclohexene and benzene are exemplified. An aliphatic hydrocarbon, e.g. heptene-1, may be converted into a cyclic hydrocarbon, e.g. toluene, at 500-600‹ C. Basic magnesium chloride may be formed by heating MgCl 2 .6H 2 O at 250-500‹ C. for 2-6 hours or by reacting MgO with MgCl 2  in water at elevated temperature. The basic magnesium chloride may be used as catalyst in the hydrocarbon conversion processes in conjunction with hydrogen chloride.
Patent GB-1452133-A (GB)
Title: Fibres and film of synthetic resin
IPC: C08L1/00
Filed: 1973-11-21
Abstract: 1452133 Grafted sulphated or sulphonated polyvinyl alcohols KOHJIN CO Ltd 21 Nov 1973 [21 Nov 1972] 53977/73 Headings C3G and C3P [Also in Division D1] A chloro-substituted ethylenically unsaturated aliphatic monomer is grafted in aqueous emulsion on to a sulphated or sulphonated polyvinyl alcohol and the resulting emulsion is mixed with polyvinyl alcohol or a mixture thereof with another water soluble polymer to yield fibre- or film-forming material. Specified monomers, which may be copolymerized with non-chloro containing monomers, are vinyl, vinylidene, allyl and methallyl chlorides. Examples are given in which (a) a saponified sodium vinyl sulphonate-vinyl acetate graft polymer is grafted with vinyl chloride. The resulting emulsion being mixed with aqueous polyvinyl alcohol solution to yield a liquid which is extruded to form fibres, which are acetalized with formaldehyde and dyed; (b) a saponified sodium allyl sulphonate-vinyl acetate copolymer is grafted with vinyl chloride and vinyl acetate, the resulting emulsion being further treated as in (a), except that stannic acid dispersion is added with the polyvinyl alcohol; (c) a sulphonated polyvinyl alcohol prepared by treating brominated polyvinyl alcohol with sodium hydrogen sulphite is grafted with vinylidene chloride, the resulting emulsion being mixed with aqueous solutions of polyvinyl alcohol and polyacrylamide and further treated as in (a); (d) a sulphated polyvinyl alcohol obtained by treating saponified polyvinyl alcohol with sulphuric acid is grafted with vinyl chloride and vinylidene chloride, the resulting emulsion being mixed with polyvinyl alcohol solution to form a liquid which is extruded or cast to form films; (e) a saponified sodium methallyl sulphonatevinyl acetate copolymer is grafted with vinyl chloride and vinyl propionate, the resulting emulsion being mixed with polyvinyl alcohol solution and tin oxide and further treated as in (a).
Patent GB-1100609-A (GB)
Title: Slide valve
IPC: F16K3/28
Filed: 1965-12-23
Abstract: 1,100,609. Valves. VEREINIGTE ARMATUREN G.m.b.H. 23 Dec., 1965 [23 Dec.; 1964], No. 54656/65. Heading F2V. A gate valve comprises a closure member 9 having a peripheral groove 15 containing a resilient sealing member 16, the latter being integral with a sealing plate 17 covering the upper surface of the closure member. A pressure plate 20 bears on the sealing plate and is formed with a recess 21 for housing the nut 22 for spindle 8. Projections 24 on the closure member pass through holes in the sealing plate and pressure plate and are provided with shoulders 25 that engage a flange 26 on the nut. Once the valve reaches the closed position shown, continued rotation of the spindle causes the nut to act on surface 27 of the pressure plate thereby causing the latter to move downwardly to expand the sealing plate into contact with the wall 4 of the housing. As shown, the end faces 13, 14 of the closure member are covered by resilient material integral with the sealing member 16 and sealing plate 17. The resilient material, e.g. rubber, is vulcanized to the closure member. When the parts 9, 20, 22 are assembled, the pressure plate exerts a prestress on the sealing plate.
Patent GB-1477680-A (GB)
Title: Optical guides
IPC: G02B6/04
Filed: 1974-12-18
Abstract: 1477680 Optic fibre BICC Ltd 17 Dec 1975 [18 Dec 1874] 54688/74 Heading G2J An optic fibre, which may be liquid filled or have a graduated density core, is coated with a metal or alloy coating and then sheathed. The metal coating is stated to increase strength and may be applied by the method disclosed in Specification 1038534.
Patent GB-1280710-A (GB)
Title: Improvements in electrostatic filters
IPC: B03C3/76
Filed: 1969-11-07
Abstract: 1280710 Electrostatic filters KLOCKNER-HUMBOLDT-DEUTZ AG 7 Nov 1969 [7 Nov 1968] 54698/69 Heading B2J An electrostatic filter is provided with a cleaning device comprising a push rod 2 which is attached to the lower end of the precipitator plates 1 so that there is vertical play between the push rod and the plates. The push rod 7 of a knocking device 4 engages an end of rod 2 at the inner wall of the filter housing so as to allow vertical play. The rod 7 is guided in a thrust bearing 8. Several rods 2 may be connected together to form a frame.