baber/WOPTO huggingface dataset:
Patent GB-1250957-A (GB)
IPC: C08L21/00
Filed: 1969-02-20
Abstract: 1,250,957. Fire retardant polyolefin compositions. JOHNSON & JOHNSON. 20 Feb., 1969 [20 Feb., 1968; 31 Oct., 1968], No. 9276/69. Heading C3P. Fire retardant compositions comprise (1) a polyolefin, (2) sufficient of a fire retardant additive comprising an organic bromine phosphate, an organic chlorine phosphate, or mixture of an organic bromine compound or organic chlorine compound with an organic phosphate, none of which are normally dispersibly compatible with the polyolefin, to provide 0.7 to 10% of elemental -halogen by weight of the composition, (3) 0.05 to 20 weight per cent of a dispersant for (2), (4) 0.2 to 1 weight per cent of a free radical initiator and (5) 0.05 to 2 weight per cent of a racemization-inhibiting antioxidant. The polyolefin may be a polymer of ethylene, propylene and/or butene. The fire retardant may be a 2-bromo-3-chloropropyl phosphate, 2,3-dibromopropyl phosphate, dichloropropyl phosphate, or mixture of chlorinated paraffins or naphthalenes with cresyl diphenyl or triphenyl phosphates. The dispersant may be a chlorinated polyphenyl, chlorinated naphthalene, stearic acid, chlorendic anhydride or wax. The free radical initiator may be dicumyl peroxide, 2,5- dimethyl - 2,5 - di(t-butyl peroxy)hexane or hexyne-3, di-t-butyl -peroxide, 2,5-dimethyl hexane-2,5-dihydroperoxide, t-butyl hydroperoxide or cumene hydroperoxide. Many suitable racemization inhibiting anti-oxidants including carbon black and.phenols are Secondary anti-oxidants, e.g. thiodipropionic acid esters, may also be present, and the compositions may be made in fibres, filaments and other shaped articles. Many examples are given of compositions comprising (1) polypropylene, (2) tris (dibromopropyl) phosphate, chlorinated paraffin wax and triphenyl phosphate, tris (dichloropropyl) phosphate, tris (chlorobromopropyl) phosphate or tris (#-chlorethyl). phosphate, (3) stearic acid or chlorinated biphenyl, (4) dicumyl peroxide, t-butyl hydroperoxide or 2,5 - dimethyl - 2,5 - dihydroperoxyhexane, and (5) carbon black, 2,6-di-t-butyl-4-methylphenol and distearyl thiodipropionate, optionally together with 2-hydroxy-4-octoxybenzophenone, or 4,4<SP>1</SP>-thiobis (3-methyl-6-t-butyl phenol).
Patent GB-1257437-A (GB)
IPC: C23F13/00
Filed: 1970-06-12
Abstract: 1,257,437. Electro-chemical analysis. ENGELHARD MINERALS & CHEMICALS CORP. June 12, 1970 [June 13, 1969], No.28690/70. Heading G1N. [Also in Division C7] A reference electrode for cathodic protection systems comprises a base of titanium, tantalum or niobium having ridges and depressions in its surface and a layer of silver chloride completely or partly coating the ridges and depressions. As shown in Fig. 1, the electrode is a disc having a marginal flange embedded in resin 3 and may be mounted on a ship's hull. There may be a layer of silver Fig. 3 (not shown) between the base metal and the silver chloride coating. In use, when the silver chloride coating has worn off the ridges, the silver chloride in the depressions acts as a reservoir to supply chloride ions to the bare silver, and when the silver has worn off the ridges, the bare base metal forms an insulating oxide film preventing stray currents which would make the electrode potential unstable.
Patent GB-1289648-A (GB)
IPC: F16D65/22
Filed: 1970-04-20
Abstract: 1289648 Fluid pressure braking systems; brakes AUTOMOTIVE PRODUCTS CO Ltd 19 April 1971 [20 April 1970] 18762/70 Headings F2F and F2E The invention relates to a fluid pressure braking system wherein brake shoes are applied to the internal peripheral surfaces of brake drums by fluid pressure acting on pistons in wheel cylinders. Each or one of the wheel cylinders comprises at least one piston 32, 33 and a wedge member 47 preferably slidably mounted in a plunger 46 co-operating with the piston 32, 33, the fluid pressure when in the wheel cylinder tending to urge the member 47 to a position in which it holds or jams the piston in the brake applied condition. The wedge member 47 is normally held in its inoperative position by means, e.g. fluid pressure acting in a motor cylinder 28a on a piston 51, which is rendered inoperative when the brakes are applied for parking purposes. In the construction shown one 32 of the pistons is formed in two parts which have a stack of Belleville washers 52 interposed therebetween, the washers yielding when the brake drum cools down and thus urges the shoes and pistons inwardly after a brake application. The other piston 33 is provided with a wear adjustment mechanism. The main application of the brakes is provided through a pedal operated control valve and the parting " application " through a hand control valve (Fig. 1, not shown). Each internal shoe drum brake comprises two brake shoes between each pair of ends of which an actuator is provided. Each actuator is supplied with pressurized fluid by a different circuit and pressurized fluid is supplied from pump pressurized accumulators. The hand control valve has a spool type valve member for each circuit which provides application and release of the parting braking action in stages (Figs. 5 to 9, not shown).
Patent GB-1295506-A (GB)
IPC: E06B9/307
Filed: 1970-10-19
Abstract: 1295506 Venetian blind tilt mechanism LEVOLOR LORENTZEN Inc 19 Oct 1970 [24 Nov 1969] 49483/70 Heading E1J In a venetian blind worm-gear tilt shaft mechanism the gear 60 is mounted by its shaft 63 in bearings 53, 54 in the sides 43, 44 of a shell 40 adapted by means of flanges 45, 46 to be fixed to the bottom of a head channel 20 as by clinched tabs 20i; and the worm 73 integral with non-slip pulley 76 is mounted on a stub shaft 91 fixed to a second shell 80. The front shell 80 is rocked toward the shell 40 in attaching the shell 80 to shell 40 and the shells are formed with interengaging formations 49a, 50a (83a, 84a) at the bottoms of the shells and with latches (89a, 90a) engaging in holes 55, 56 at the tops of the shells, to secure the two shells together. The shell 80 and head channel 20 are perforated for the passage of the pulley-engaged cord 100. The worm-gear and pulley unit are of plastics and the shells are of stamped sheet metal, e.g. steel.
Patent GB-1296224-A (GB)
IPC: H01J9/02
Filed: 1969-11-24
Abstract: 1296224 Cutting by fusion WESTING- HOUSE ELECTRIC CORP 24 Nov 1969 [22 Jan 1969] 57376/69 Heading B3V [Also in Division H1] A machine for severing a composite helicallywound stock wire 28 into lengths 29 having a fused module or bead at each end to be used as electrodes or filaments in discharge or incandescent lamps (see Division H1) comprises clamps 34 and 63 for feeding the wire 28 from a spool 86 through a guide member 90 into the path of the beam 30 from a laser 60 which melts the wire to provide a beaded length 29 which is attracted through an annular electromagnet 64 into a hopper 91. The heating effect of the laser beam is increased by directing a jet of oxygen to the melting site through a nozzle 68. The beaded ends prevent the lengths 29 from becoming entangled in the hopper owing to the end of one length passing between the turns of adjacent lengths. The clamps 34 and 63 are operated and the laser 60 and electromagnet 64 switched by a system of cams 37, 61, 44 and 52 driven by a motor 71. The individual cam operations in a cycle are described (Figs. 9a to 9d, not shown). Alternative methods and apparatus are described in which mechanical cutting is used either prior or subsequent to the laser beam melting, or in which the laser beam is replaced by an electron beam, a plasma torch or an oxy-hydrogen flame.
Patent GB-1296949-A (GB)
IPC: F15C1/14
Filed: 1971-08-04
Abstract: 1296949 Fluid regulation HONEYWELL Inc 4 Aug 1971 [10 Aug 1970] 36728/71 Heading G3H A variable gain fluidic apparatus comprises two identical proportional fluid amplifiers 20, 30 each of which has one power inlet, two outlets and three control ports. Power inputs 21, 31 are connected to a common fluid source 27; the first control ports 22, 32 are connected to a differential pressure signal-generator; the second control ports 23, 33 are connected to a common constant pressure source P 2 ; the third control ports 24, 34 are connected to a common variable pressure source P 1 . With the above arrangement, for a given pressure of the power nozzlesupply 27 and a given pressure differential across the first control ports 22, 32 the differential output signal as obtained across output ports 54, 55 is related to the pressure of the variable source P 1  connected to the third control ports 24, 34. The constant pressure source P 2  is utilized to impart to the circuit an optimum gain, Fig.2 (not shown) which gain may then be varied by altering the pressure of source P 1 , Fig.7 (not shown). The differential pressure signal generator connected to the first control ports 22, 23 may be a further proportional fluid amplifier Fig.11 (not shown).
Patent GB-1297306-A (GB)
IPC: C07C45/41
Filed: 1970-03-10
Abstract: 1297306 Naphthyl - propanals and intermediates therefor SYNTEX CORP 10 March 1970 [9 Oct 1969] 11483/70 Heading C2C Novel d-compounds III: where R is Me, Et, iso-Pr, cyclopropyl, CF 3 , F, Cl, vinyl, ethynyl, MeO, MeS, methoxy-methoxy, methoxymethylthio, difluoromethoxy or difluoromethylthio, are made by oxidizing compounds II (prepared from corresponding propionic acids) or by reducing compounds I (prepared by α-methylation of corresponding acetic acids usually in the methyl ester form; the acetic acids are prepared by reacting 2-acetyl-6- R-substituted naphthalenes with a morpholinesulphur mixture followed by treatment with HC1 and neutralization with, e.g. sodium hydroxide). The following starting materials and intermediates are also described and exemplified:-2 - acetyl - 6 - methoxy - naphthalene, methyl - 2 - (6 - methoxy - 2 - naphthyl)- propionate and a cinchonidine salt with 2-(6- methoxy-2-naphthyl) propionic acid {treatment with hydrochloric acid affords d-2-(6-methoxy-2- naphthyl) propionic acid which yields l-2-(6- methoxy-2-naphthyl)-1 -propanol upon reduction with lithium aluminium hydride}. Pharmaceutical preparations suitable for treating inflammation contain III as active ingredient; they also show analgesic and anti-pyretic action. Administration is usually orally.
Patent GB-1297917-A (GB)
IPC: B65G45/22
Filed: 1968-12-19
Abstract: 1297917 Cleaning apparatus C P EQUIPMENT Ltd 21 Nov 1969 [19 Dec 1968] 60461/68 Heading A4F [Also in Division B8] Cleaning apparatus comprises separate means for supplying water and liquid detergent to a pump 6 for delivering to a set of nozzles 2 for discharge on to an article, e.g. a conveyer belt 4, to be cleaned, means e.g. a tray 13, for collecting used liquid, and a pump 18 for passing the collected liquid either to a reservoir 10 for recirculation or to a drain 28, the apparatus being arranged to direct water and detergent alternately at the article to be cleaned. A pump 6 delivers either water from a main supply 14 via a value 12 or detergent from the reservoir 10 via a valve 9. The used detergent is passed via a valve 24 to the reservoir 10, and the used water passes via a valve 26 to the drain 28. The valves 9, 12, 24, 26 are programme controlled. The pump 18 is primed by an injector 30. An alternative embodiment is described in which separate sets of nozzles are provided for the discharge of water and detergent respectively and separate circulating systems are provided for the two liquids. This alternative embodiment is also provided with a scraper blade positioned to remove solids from the conveyer belt before the liquids are discharged thereon.
Patent GB-1304179-A (GB)
IPC: G06K11/02
Filed: 1969-12-19
Abstract: 1304179 Numerical co-ordinate storage of pictorial representation DEFENCE SECRETARY OF STATE FOR 19 April 1971.[19 Dec 1969] 61958/69 Heading G1A A pictorial representation is entered into a signal store of a computer in numerical coordinate form for subsequent reproduction, by means of representing the feature as a transparent spot or line on an opaque plate, placing a light source with its beam normal to the plane of the plate at the spot, or traversing it along the line, causing a photo-electric detector to home on the beam when in the spot, or to follow the movement of the lamp along the line when moved along the line by an operator, and developing signals indicative of detector position for storage. The detector is mounted on a dual servo-driven carriage and slide bar; and the head of the usual quadrant position following structure may include magnetic coils which respond to a magnetic field developed at the light source for coarse initial homing. The cross section of the beam may be altered and in the case of investigating a line feature the co-ordinates may be signalled at intervals in order to economize in computer store space the signals being developed by digitizers associated with the carriage and slide bar drive. Maximum detector sensitivity may be achieved by including a filter matched to the detector response in the beam path. Illumination of the plate surface for the benefit of the operator in a manner not affecting the detector is described.
Patent GB-1306548-A (GB)
Title: Isomerisation process
IPC: B01J31/02
Filed: 1970-08-07
Abstract: 1306548 Isomerization of dichlorobutenes BP CHEMICALS Ltd 5 July 1971 [7 Aug 1970] 38125/70 Heading C2C One of 1,4 - dichloro - butene - 2 and 3,4- dichloro-butene-1 is isomerized to the other by contact with a mixture of copper naphthenate, a dinitrile, and either an acyclic carboxylic acid amide, a lactam or an N-alkylated derivative thereof. Nitriles specified are adiponitrile, dicyano-butenes, e.g. 1,4-dicyano-butene-2, and isophthalonitrile. Amides specified are formamide, acetamide, pyrrolidones and their N- alkylated derivatives. The process may be batchwise or continuous. The starting material may be the isomer mixture obtained by the chlorination of butadiene. The lower-boiling 3,4 - dichloro - butene - 1 can be distilled off from the isomerization reactor through a fractionating column. In this embodiment, a stream is removed from the bottom of the reactor to prevent accumulation of high boilers, the dichlorobutene content of this steam being recycled. To obtain the higher-boiling 1,4-dichloro-butene-2, the reactor steam is fed to a point near the base of a fractionating column, with a reboiler and the 1,4-isomer removed from a lower point. The overhead 3,4-dichlorobutene-1, and the catalyst-containing steam from the reboiler, are recycled to the reactor, a proportion of the catalyst-containing steam being removed for separate distillation to prevent accumulation of high boilers.
Patent GB-1307280-A (GB)
Title: Extensible steel tape rules
IPC: G01B3/10
Filed: 1970-12-23
Abstract: 1307280 Measuring tape FISCO PRODUCTS Ltd 20 Jan 1972 [23 Dec 1970] 61084/70 Heading G1M A tape measure comprises a tape 4 wound on a drum 8 and a datum mark 6 viewable through a window 5 for reading the tape in internal movements, the datum mark 6 being formed as part of a pivoted lever 10 whose position is determined by the outer turn of the tape whereby the distance along the tape from the slit 2 to the datum mark 6 is constant. The lever 10 has a roller 11 which abuts the tape and may be urged against the tape by a spring 12, by a weight, or by the weight of lever 10. The lever 10 may have a button provided for moving it away from the tape. The tape may retract automatically and be provided with a locking device. The length along the tape from slit 2 to datum mark 6 may be equal to the distance between walls 3 and 13, the datum mark 6 then co-operating with a scale having its origin at the end of the tape. If the length of tape between the slit 2 and the datum mark 6 is greater than the distance between walls 3 and 13, datum mark 6 co-operates with a scale having its zero displaced from the end of the tape and a further scale having its origin at the end of the tape is provided for normal external movements.
Patent GB-1317466-A (GB)
Title: Apparatus for use in forming a surface of preselectred shape on  an elongate workpiece
IPC: G05B19/18
Filed: 1970-06-29
Abstract: 1317466 Electrical control systems GETTYS MFG CO Inc 29 June 1970 31302/70 Heading G1N In order to form a surface on a workpiece 10 by a tool 12 defined by the function x=f(Z) where Z and X represent points on the workpiece surface as measured in first and second mutually perpendicular directions an electrical signal, representing the position of the tool 12 with respect to the workpiece 10 when moved along the first direction by a first drive 20, is modified in accordance with the function and a second drive 17 moving the tool in the second direction is controlled in response to the modified signal so that the tool traces a curve as defined by the function. The position of tool 10 along the Z axis is detected by means of potentiometers 24, 26 the wipers 24b, 26b of which are gauged together and coupled to lead screw 22 which drives tool slide 16. The output from operational amplifier 80, representative of the absolute value Z of the position of the tool 12 with respect to roll 10 being crown machined, is squared by potentiometer 26 and amplifier 82. The arc length C of the crown to be machined is determined by the setting of potentiometer 86 in the feedback loop of amplifier 84 which modifies the signal Z<SP>2</SP> by factor I/C and the output signal Z<SP>2</SP>/C is further modified in accordance with the desired arc height H by potentiometer 92. The   function H (Z<SP>2</SP>/C) thus computed is compared at junction 100 with a value X representative of the cross axis displacement derived from feeler 44 coupled to a differential displacement transformer transducer 60, 62, 64, 66 the a. c. output of which is demodulated to give a positive or negative voltage indicative of the value and direction of the displacement x. The difference signal from amplifier 102 is used to control the x-axis drive 17, Fig. 3B (not shown) so that the voltage at junction 100 is maintained at zero so that the system is continually solving equation X = H(Z<SP>2</SP>/C) which means that the cutting tool 12 is traversing the desired path with respect to roll 10. If the tool 12 is to machine in accordance with a linear equation potentiometer 26 and amplifier 82 are by-passed. A nulling system including a double pole triple throw switch 128 is provided to assure that the voltage from amplifier 96 is equal to zero when the longitudinal displacement is equal to zero.
Patent GB-1321534-A (GB)
Title: Method and apparatus for loading a sleeve blank
IPC: B65B11/10
Filed: 1971-02-08
Abstract: 1321534 Packaging MARDON SON & HALL Ltd 1 Feb 1972 [8 Feb 1971] 4140/71 Heading B8C Two or more capped tubs 11 are packaged in an open-ended sleeve carrier by conveying a sleeve blank 10 along on an endless conveyer 21 having a series of studs 24 engaging in a slot or holes 16 in the base panel 12 of the blank, pushing the tubs transversely on to the base panel from a side-loading platform 12, and folding the blank about the tubs at a station (not shown) downstream of the platform whilst the studs are still in register with the blank holes. The spaced apart bottoms of the tubs enable them to pass one on either side of the studs. As the blanks are transferred to the conveyer from a feed conveyer 20, bridging members 25 assist correct registration of the blank holes with the studs. The blank base panel is narrower than the top panel 13, Figs. 1 and 5 (not shown), the tubs projecting beyond the ends of the base panel and through side panel apertures 16 in the formed package. A blank edge flap 15 is folded upwards and bonded to one of the side panels by glue applied by a wheel (not shown) at the folding station. A modified blank, Fig. 2 (not shown) may be used.
Patent GB-1323417-A (GB)
Title: Protecting composite structures from corrosion
IPC: C23F13/02
Filed: 1969-08-28
Abstract: 1323417 Cathodic protection COURTAULDS Ltd 27 Aug 1970 [28 Aug 1969] 42793/69 Heading C7E [Also in Division F4] A structure which comprises plastics material and metal, e.g. a heat exchanger comprising Ti tubes 5 arranged between Ti caps 3, 4 within a glass fibre reinforced polyester resin shell 1, or a boat comprising a glass fibre reinforced hull and a metal propeller, is protected from corrosion by incorporating carbon fibres in at least a part e.g. a surface layer 2 of the plastics material to render it conducting and electrically connecting the plastics material and metal respectively as anode and cathode to a D.C. source 10. The carbon fibres incorporated, e.g. during moulding of polyester resin and glass fibre, may be prepared by carbonising organic filamentary material, such as cellulosic, polyester, polyamide or polyacrylonitrile fibres, and heating between 1000 and 3000‹ C. Electrical connection to the plastics material may be provided by at least one metal conductor e.g. lead strip or wire, to which a stud or terminal is connected, laid in with the carbon fibres.
Patent GB-1327687-A (GB)
Title: Building block
IPC: E01F1/00
Filed: 1971-11-15
Abstract: 1327687 Toy building blocks P R MEAD 15 Nov 1971 [14 Aug 1971] 38249/71 Headings E1B and E1G [Also in Division A6] A kerb traffic island or roundabout comprises concrete blocks 10 having interengaging convex and concave surfaces so that the kerb &c can follow varying angles. The blocks may also be used to build screen walls. When used as a kerb the block may incorporate reflex reflectors. Toy blocks of the same shape are also envisaged. The blocks are interconnected by bars 20 secured to embedded bolts by nuts 21. In a second embodiment a circular base has a frusto-conical upper part the outer face of which constitutes the convex surface and the concave surface is formed by an extension integral with the frusto-conical part and having a triangular side elevation.
Patent GB-1337750-A (GB)
Title: Voltage generators
IPC: G01N30/86
Filed: 1970-12-21
Abstract: 1337750 Time-dependent function generators DEFENCE SECRETARY OF STATE FOR 21 March 1972 [21 Dec 1970] 60482/70 Heading G4G [Also in Division B1] A resistance network for obtaining a timevarying voltage comprises resistances R A , R B , R C  in series with a source 10 of voltage E, the resistances R B , R C  being linearly variable with time and the output being derived across the incircuit portion of R B . It is shown that if R A  > 2R C  and 5R B  < R C  < 200R B  (where all values are maximum values, the second relationship being approximate), the value of R A  may be set to obtain functions of time which vary from linear through logarithmic to hyperbolic. The source 10 may be connected to the circuit through a commutator whereby the sign of the output may be reversed. Both resistances R B , R C  may be associated with switches which enable the floating and live terminals to be reversed. The resistance R B  may be shunted by a further resistance which prevents the value of R B  falling below a certain value. All these details are illustrated in Fig. 2 (not shown) which gives typical values. In the mechanical arrangement of Fig. 3, resistances R B , R C  are in the form of rotary potentiometers 40, 42 driven at identical speeds by a motor 100 through a gear chain 98, 94, 90, 88. Idler 96 couples gears 98, 94 and is fixedly mounted on an axially movable shaft 102. During operation of the circuit, shaft 102 is moved to the right by a tension spring 106, this movement being controlled by a follower 104 which engages wormwheel 92 mounted on the potentiometer shaft 84. At the end of the period of operation, the follower is disengaged from the worm-wheel and allows the shaft 102 to move to the left under the influence of compression spring 108 whereby the idler 96 is disengaged from the gears 98, 94 and the potentiometers decoupled from the motor. A modification is described (Fig. 4, not shown) in which the potentiometers are mounted on the same shaft coupled to the motor through a slippable friction drive.