baber/WOPTO huggingface dataset:
Patent GB-1127607-A (GB)
Title: Improvements relating to electron discharge devices
Inventor: STEPHEN RONALD ALAN
IPC: C03C27/04
Filed: 1964-12-03
Abstract: 1,127,607. Glass to metal seals; glass compositions. ELECTRIC & MUSICAL INDUSTRIES Ltd. 3 Dec., 1965 [3 Dec., 1964], No. 49132/64. Heading C1M. [Also in Division H1] A glass frit 4 for sealing a glass membrane 1 to a steel supporting ring 2 in an electron discharge device (see Division H1) consists of red lead, boric acid and silica in the ratios of 5 : 2 : 1 by weight. Before use the materials are fused to form a glass by heating at 900‹ to 950‹ C. and are powdered when cool. The frit seal 4 is protected by a ring shield 9 of soft metal foil which is clamped between the ring 2 and a retaining ring 10 and extends inwardly to contact the glass membrane 1.
Patent GB-1446897-A (GB)
Title: Frequency multiplex apparatus
IPC: H04J1/04
Filed: 1973-10-24
Abstract: 1446897 Frequency division multiplex COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT - ALCATEL 24 Oct 1973 [24 Oct 1972] 49540/73 Heading H4R Input telecommunication channels are divided into groups such as 1-12, premodulated m0, fed to respective modulators ml in a first modulationg stage M1 having a single band pass output filter F1 selecting the desired band, a plurality of such identical groups feeding respective modulators m2 of a second modulation stage M2 having a single band pass output filter F2, the modulating frequencies and the centre frequencies of the filters F1, F2 being of the order of MHz. This arrangement reduces the total number of filters. As shown, 25 subgroups each of 12 channels are modulated to a primary group 1084-1132 kHz corresponding to the lower sideband and five such groups transposed to a secondary group 5432-5672 kHz. Either five or sixteen secondary groups are transposed to standard 812-2044 kHz or 60-4028 kHz tertiary groups. Alternative carrier frequencies are 128 or  2560 kHz for the premodulators and 1216-1260 kHz or 3648-3692 kHz respectively for the first stage M1.
Patent GB-1132343-A (GB)
Title: A dough mixer
IPC: A21C1/06
Filed: 1965-11-22
Abstract: 1,132,343. Dough mixers. R. BINI. 22 Nov., 1965 [21 Nov., 1964; 30 March, 1965], No. 49567/65. Heading B1C. A dough maker comprises in series a mixer 1 to which materials are fed in metered amounts, a feeding device 2 arranged for working the material with repeated compressions and expansions, and a further mixer or kneader 3. The mixer 1 comprises a rotatable shaft 12 having radial blades 13 successively displaced by 90 degrees; the feeding device 2 a rotatable screw mounted preferably eccentrically in a cylindrical casing (see Figs. 1a, 1b not shown) or two parallel intermeshing screws 23<SP>1</SP>, 23<SP>11</SP> in a lobed casing (see Fig. 2, not shown); and the mixer 3 a single shaft 32 in a cylindrical casing having internal deformations (see Fig. 3, not shown) or two parallel shafts 32<SP>1</SP>, 32<SP>11</SP> in a lobed casing 31, each shaft having oblique ellipsoidal blades 33 mounted round it in a helical path. The casing may be jacketed and the shaft and blades hollow for passage of heat exchange medium (see Figs. 5-8, not shown). The screws 23, 23<SP>1</SP> may be of variable pitch and contour; one may be a single and the other a double start screw.
Patent GB-1085929-A (GB)
Title: Process for purifying terephthalic acid
IPC: C07C51/43
Filed: 1965-11-22
Abstract: Terephthalic acid is purified by dissolving it at 80-190 DEG  C in an aqueous solution containing an alkali-metal or ammonium salt of an organic acid having a dissociation constant between 1.7 x 10-5 and 2 x 10-2 and 5-120 mol. per cent of the corresponding free acid, and then cooling the solution.  Specified acids are formic, acetic, propionic, oxalic, tartaric, citric, glycollic and maleic acids. Simultaneously, the solution may be oxidized, reduced or given an adsorption treatment, oxidation with potassium perman ganate or bichromate, or reduction by catalytic hydrogenation, or adsorption with active carbon being described. Examples are given.
Patent GB-1445365-A (GB)
Title: Rotary pumps
IPC: F04B49/00
Filed: 1973-10-24
Abstract: 1445365 Rotary positive-displacement fluidmachines T R W Inc 24 Oct 1973 [2 Nov 1972]  49593/73 Heading F1F In a pump that may be of the slipper-vane type a plate Up sealing an inlet cavity 33 is biased towards a rotor 24 by pressure transmitted through an orifice 04 to a cavity C2 from an outlet port 38, and to regulate the output the cavity C2 is vented to e.g. a reservoir 60, through an orifice 02, a passage P3 in a dowel-pin 40 and passages P2, P11 when the pressure in a return passage P1 for the working fluid reaches an upper limit and a valve Vfc is thus displaced upwardly (according to Fig. 1), the loss of pressure in the cavity C2 due to the flow through the orifice 04 allowing the pressure at the port 38 to deflect the plate and fluid to thus escape from said port direct to the cavity 33. The plate and valve may be pre-loaded by compression springs 37, SP1. The fluid flows from the passage P1 to an inlet Ip, Fig. 3, through an orifice O1 and over a deflecting element, or "lance", 51 formed on a tube T2 to induct fluid from the reservoir 60. The port 38 is connected to an outlet passage in the housing 11 by passages in the plate Up, a cam ring CR and a plate Lp, Fig. 5 (not shown). As an alternative to the valve Vfc a spring-loaded valve (B), Fig. 4 (not shown), may be provided in the housing 11 to vent the cavity C2 through an orifice 03 and passage P4 in a dowel-pin 42. In another embodiment, Fig. 8, the valve Vfc is replaced with a spring-loaded valve 80 which is raised against the resistance of a spring 81 when pressure in an outlet cavity C4 lifts a spring-loaded ball B2, flow to the inlet side of the pump being restricted by an orifice O5. Raising of the valve 80 vents the cavity C2 to the reservoir by way of the upper dowel-pin 40a. As an alternative to the valve (B) in the arrangement according to Fig. 4 a spring-loaded valve (S2), Fig. 9 (not shown), opens to vent the cavity C2 through the passage P4 when the pressure in the aforementioned outlet passage in the housing reaches an upper limit. In a further embodiment, Fig. 11, a hollow valve 120 with a tapered stem 131 regulates the flow of working fluid from an outlet passage 136 through a "throat" 129 to an outlet 128.
Patent GB-1060156-A (GB)
Title: Process for the production of 3-alkylphenols
Filed: 1963-12-17
Abstract: 3-Alkylphenols are prepared by reacting a phenol in the presence of an activated bleaching earth, e.g. bentonite with a mono olefine, e.g. isobutene which contains three to five carbon atoms, at temperatures of more than 110 DEG  C. preferably between 165 DEG  and 185 DEG  C. The molar ratio of phenol to olefine is preferably between 1 to 1 and 4 to 1.  Examples are given of the preparation of 3-tertiary-butylphenol by reacting gaseous isobutene and phenol in the presence of montmorillonite catalyst.
Patent GB-1453615-A (GB)
Title: Feeding elongate sheet-form material along a feed path
IPC: B65H23/188
Filed: 1973-10-26
Abstract: 1453615 Feeding webs TOYO BOSEKI KK 26 Oct 1973 [28 Oct 1972] 50051/73 Heading B8R [Also in Division D1] An apparatus for bleaching, dyeing a knitted or woven textile web in the form of web lengths interconnected by transverse splines includes a series of webs B 1  to B n  through which the web C 1  is fed in a meandering and reciprocable manner with a resultant forward feed component by a plurality of pairs of feed rollers A 1  to An, the rollers being stopped sequentially following a predetermined number of reciprocal feed operations by sensing means associated with the rollers and respective to the sensing of the arrival at the roller nip of a splice, whereby when all the splices arrive at the roller nips and all rollers are stopped, a feed control means restarts the operative cycle of the feed rollers such that the web lengths are successively treated in the respective webs B 1  to Bn. The sensing means in the preferred embodiment are switches and the successive operative cycles of the feed rollers are controlled by an electric circuit shown in Figs. 2, 3. The circuit may be modified as described with reference to Figs. 4A, 4B or 5.
Patent GB-1390730-A (GB)
Title: Press rolls
IPC: D21G1/02
Filed: 1973-10-26
Abstract: 1390730 Rollers ESCHER WYSS Ltd 26 Oct 1973 [26 Oct 1972] 50078/73 Heading F2U A press roll 1 (e.g. for papermaking) comprises a stationary beam 3 mounting and guiding a row of hydrostatic support elements 4, each with a shoe 4<SP>1</SP> supporting a shell 2 rotatable about the beam, and each being a different distance from the transverse centre plane B of the shell. Preferably the interval t between the elements is uniform and is four times the offset e of the transverse plane A of symmetry of the elements, from the plane B. Preferably the width s of the track 10 of each shoe 4<SP>1</SP> is less than half the interval t. The elements 4 may be closer together at the centre of the shell.
Patent GB-1235517-A (GB)
Title: Removing nitric acid from aqueous solutions
IPC: B01J3/04
Filed: 1968-10-23
Abstract: 1,235,517. Removal of nitric acid. BADISCHE ANILIN- & SODA-FABRIK A.G. 23 Oct., 1968 [24 Oct., 1967], No. 50344/68. Heading C1A. Nitric acid is removed from aqueous solutions by reaction with carbon monoxide under pressure and at elevated temperatures. Temperatures between 100 and 300 C. may be used and pressures from 50-200 atmospheres. Treatment time is preferably at least 5 minutes. A stoichiometric excess of CO should be used and the CO need not be pure, provided that any other gases present are inert to the other components of the solution containing the nitric acid. Commerical CO + H 2  mixtures may be used. The product of the reaction is predominantly NO.
Patent GB-1283626-A (GB)
Title: Improvements in or relating to combination clutch-brakes
IPC: F16D67/04
Filed: 1970-10-23
Abstract: 1283626 Clutch/brake combinations; disc brakes; cooling HORTON MFG CO Inc 23 Oct 1970 [16 March 1970] 50452/70 Headings F2C, F2E and F2L A friction clutch/brake combination comprises an axially-fixed driven flange 56 having a hub 136 integral with the driven shaft 138 and centered on a plug 44 pinned to the driving shaft 22 which carries an axially splined driving flange 28 urged to the left but of contact with flange 56 by a spring 52 and to the right to engage the clutch by a non-rotating fluid pressure, e.g. air, piston 58 acting on the hub 30 of the driving flange via a ball bearing 72, a second piston 156 carrying a friction facing 159a which is moved into contact with driven flange 56 to engage the brake against the influence of springs 162a acting on eye-bolts 160 fast with the piston 156. The pistons are mounted in a two-part fixed housing 88, 140 detachably secured together to allow separation and independent operation of the clutch and brake. The housings have slots 105, 118 formed around their periphery to allow cooling air to circulate through the passageways formed in the clutch and brake flanges defining cooling paths 107, 113 and 109 shown in broken line. Cooling fins 36 on driving flange 28 circulate the cooling air.
Patent GB-1060379-A (GB)
Title: Brake or clutch pedal assist
IPC: B60T13/44
Filed: 1964-12-11
Abstract: 1,060,379. Brakes; fluid pressure control of brakes; controlling clutches. ROCKWELLSTANDARD CORPORATION. Dec. 11, 1964 [March 26, 1964], No. 50492/64. Headings F2E F2F and F2L. A motor vehicle brake or clutch pedal swing- able between inactive and active positions has at its free end a valve actuated by light pressure on a foot pad to energize a fluid pressure motor connected to the pedal to move the latter to its active position. The diaphragm motor 52 attached to the lever has its diaphragm connected by a rod 64 to a fixed part 67 of the vehicle and is connected by conduits 70, 108 and the valve 72 to the engine manifold 110. The valve may be of synthetic materials and comprises (Fig. 3, not shown) a waisted plunger (92) abutting a spring-urged member (100) provided with recesses (102). On depression of the plunger by the foot pad 22 pivoted to the pedal the waisted portion connects the conduits 108, 70 to actuate the motor. A porous felt pad on the valve allows a restricted, filtered, air flow to conduit 70 when the plunger is raised. The pedal 16 is connected by a rod 24 to a master cylinder 26 which may supply wheel cylinders 32, 34 of a first pair of brakes 36, 38. The brake torque reaction creates pressure in power cylinders 40, 42 which are connected to wheel cylinders 44, 46 of a second pair of brakes 48, 50 as described in Specification 1,014,963.
Patent GB-1403363-A (GB)
Title: Fuel injection systems
IPC: F02M59/10
Filed: 1971-10-30
Abstract: 1403363 Fuel injection system C A V Ltd 23 Oct 1972 [30 Oct 1971] 50526/71 Heading F1B A fuel injection system for supplying fuel to an I.C. engine comprises an accumulator 10, a fuel injection nozzle including a valve 13 connected thereto by a conduit 12 with a valve 19, means being provided to open valves 12, 19, a cylinder 20 containing a shuttle 21 loaded by resilient means 22 being in parallel with valve 19. The unit 27 operates the valves 13, 19 in timed relationship with each other and with the engine so that with valve 13 closed at the end of fuel injection, valve 19 opens and shuttle 21 is moved leftwards by resilient means 22, after which valve 19 is closed and valve 13 opened when injection is required, the shuttle 21, when valve 13 is opened, moving against the action of the resilient loading. Ports 23, 24 in shuttle and cylinder communicate at a predetermined position of the shuttle as it moves to the right, to terminate injection by releasing fuel into the cylinder containing piston 25. Such fuel is displaced to drain by piston 25 when shuttle 21 has moved back. Valves 13 and 19 are operated by solenoids 16 and. have pistons 17 slidable in cylinders connected to accumulator 10.
Patent GB-1199696-A (GB)
Title: Adhesive Compositions
Inventor: HOH GEORGE LOK-KWONG
IPC: C09J191/08
Filed: 1968-10-24
Abstract: 1,199,696. Adhesive compositions. E. I. DU PONT DE NEMOURS & CO. 24 Oct., 1968 [24 Oct., 1967], No. 50597/68. Heading C3P. [Also in Divisions B2 and C5] An adhesive composition comprises, by weight, (I) 25-60% ethylene/vinyl acetate/ acrylic or methacrylic acid terpolymer comprising (a) 64-81À5 weight per cent copolymerized ethylene, (b) 18-33 weight per cent copolymerized vinyl acetate, and (c) 0À5-3 weight per cent copolymerized acrylic or methacrylic acid, the melt index of the terpolymer (as measured by ASTM D-1238 (Condition E)) being 0À5-100; (II) 10-30% alkyl styrene polymer; and (III) 30-65% petroleum wax. In the examples the compositions comprise paraffin wax, butylated hydroxytoluene, ethylene/vinyl acetate/methacrylic acid terpolymer and alpha-methyl styrene/vinyl toluene copolymer.
Patent GB-1467686-A (GB)
Title: Conveyors
IPC: B65G13/07
Filed: 1974-11-21
Abstract: 1467686 Driving rollerways HENRY SIMON Ltd 31 Oct 1975 [21 Nov 1974] 50608/74 Heading B8A Means for frictionally driving conveyer rollers 10 include pressure rollers 12 which are raised and lowered by means of an inflatable tube 15. As shown the tube 15 when inflated raises the rollers to urge a drive belt 14 against the conveyer rollers 10. Alternatively, the pressure rollers 12 could be drive rollers. Bearing blocks 18 spread the load from the pressure rollers 12 over the tube 15. Alternatively the tube is positioned above the pressure rollers which are urged upwardly by springs. In this case, inflation of the tube presses the rollers downwardly.
Patent GB-1373099-A (GB)
Title: Textile sliver feeding devices for spinning machines
IPC: D01H4/32
Filed: 1971-12-01
Abstract: 1373099 Fibre opener PLATT INTERNATIONAL Ltd 1 Dec 1971 [28 Oct 1970] 51304/70 Heading D1N An open-end spinning machine has a feed roller and a feed plate forming a nip for feeding sliver to an opening roller, the feed roller and plate being mounted for relative pivotal movement about an axis transverse to the feed rollers axis of rotation. Feed roller 5, Fig. 2, is mounted on shaft 6 rotatable in arm 7 pivotable about pin 19 in block 17 to enable the feed roller periphery to be positioned parallel to the nip-forming surface of rigidly mounted feed plate 2. A spring acts to pivot arm 7 with block 17 about shafts 8, 9 to bias the feed roller towards the feed plate. Alternatively, Fig. 3, surface 28 of feed plate 38 is positioned relative to feed roller periphery 29 by pivoting feed plate support 37 on shaft 30 on bracket 31, and by pivoting bracket 31 on shaft 33 in web 34. Feed plate 38 is biased by spring 26 about pivot 24 towards feed roller 25. Sliver fed between the feed plate and feed roller is opened by rollers 14 or 35.
Patent GB-1382439-A (GB)
Title: Combination of a motor vehicle gearbox and a retarder
IPC: F16H3/66
Filed: 1972-11-07
Abstract: 1382439 Hydrodynamic brakes DAIMLERBENZAG 7 Nov 1972 [11 Nov 1971] 51342/72 Heading F2E A four-speed-and-reverse automatic gearbox is followed on the driven side by a hydrodynamic retarder Pr, Sr, Fig. 1, as an additional brake system for the vehicle; the speed stages of the gearbox include freewheels which remain permanently in the effective position, even when the retarder is actuated. The engine driven shaft a, Fig. 1, drives through a torque converter W the gear train including planetary gear systems G1 to G3 for first to third speeds; Kv is a clutch for all the forward speeds, K 4 r is a clutch for the fourth forward and reverse speeds, Br is a brake for reverse speed, B 2 , B 3  are brakes for second and third speeds, and F 1 , F 2  and F 3  are freewheels associated with first, second and third speeds respectively. The retarder is switched on and off by filling and emptying its flow circuit, but extra control as below may be provided. In Fig. 2, the retarder R is controlled by a valve VR which is acted upon by the brake pedal b, the accelerator pedal g and a device d 1  which is indicative of engine speed; pedal g and device d 1  may control the retarder in such a way that the retarder is operative after delivery of torque has dropped to or below zero. In Fig. 4 (not shown), the engine speed device of Fig. 2, is replaced by a device which responds to the speed difference between the input and output shafts. Preferably, the braking force exerted by the retarder increases directly in proportion to backward movement of the accelerator pedal from a neutral position and also directly in proportion to the input-output speed difference. When the retarder is connected to the brake pedal, actuation of the retarder occurs before actuation of the main vehicle brake. The retarder may be controlled at least in part by the difference in speeds of the impeller P, Fig. 1, and turbine T of the torque converter W; or by the changeover from drive to over-run in the vehicle drive line; or by changes in the moment exerted by the engine on its mounting. Control by accelerator pedal or engine speed may be arranged to be effective only up to a specificed degree of retarder braking.
Patent GB-1531019-A (GB)
Title: Pipe fittings
IPC: F16L47/02
Filed: 1975-12-16
Abstract: 1531019 Pipe fittings SEKISUI KAGAKU KOGYO KK 16 Dec 1975 [18 Dec 1974 9 April 1975] 51391/75 Heading F2G A pipe fitting 10 adapted to be joined by fusing to a synthetic resin pipe 14 comprises a socket portion for receiving the pipe, an annular projection 18 serving as a stop for the pipe and having an annular notch 16 in the side wall thereof. As shown the fitting has two socket portions and at the open end of each socket there is an annular notch 12 in the periphery.
Patent GB-1443912-A (GB)
Title: Halogenated copolymers of acrylontrile for forming flame- resistant fibres
IPC: C08F220/44
Filed: 1974-11-27
Abstract: 1443912 Acrylonitrile fibres SOC ITALIANA RESINE SIR SpA 27 Nov 1974 [28 Nov 1973] 51497/74 Heading B5B [Also in Division C3] A copolymer having a specific viscosity of 0À1-0À4 comprising at least 50 weight per cent acrylonitrile, 2-30 wt. per cent vinylchloride or vinylidene chloride, 2-40 wt. per cent of 1- bromopropene, 2-bromopropene or mixtures thereof, 0-10 wt. per cent of a monoethylenically unsaturated, non-halogenated monomer other than acrylonitrile and, optionally, 0À1-3 wt. per cent of a monomer carrying sulphonic acid groups is converted into fire-resistant fibres, by dissolution in either dimethylacetamide or dimethylformamide, addition of antimony sesquioxide and extrusion of the dispersed solution in 1 : 1 (by weight) of dimethylacetamide and water at 50‹ C. The filaments are washed and drawn 5 times their length in water at 98‹ C. Comparative examples describe copolymers of acrylonitrile/vinyl chloride or vinylidene chloride.
Patent GB-1339939-A (GB)
Title: Manufacture of tomato pulp
IPC: A23L19/00
Filed: 1971-11-05
Abstract: 1339939 Tomato pulp H J HEINZ CO Ltd 19 Oct 1972 [5 Nov 1971] 51588/71 Heading A2B Hot break tomato pulp is prepared by feeding whole tomatoes into a falling stream of scalded tomato pulp the temperature of which is at a value to minimize enzyme activity in the mixture of tomatoes and pulp, chopping the tomatoes as they are carried downwardly in the stream, recirculating with reheating the chopped pulp to form the falling stream, and pumping off a portion of the recirculating pulp at a rate commensurate with the rate of feed of whole tomatoes. Fig. 1 shows an apparatus according to the invention, wherein whole tomatoes are fed by a screw conveyor 1 into a scald tank 2, where they meet and commingle with a stream of scalded, pulp entering via inlet 7 and are chopped by chopper 11. The resulting pulp is pumped by pump 5 through heat exchanger 19 to inlet 10, and pulp is withdrawn via line 21 by pump 22.
Patent GB-1213472-A (GB)
Title: Improvements in or relating to membranes
IPC: H01M50/431
Filed: 1967-11-13
Abstract: 1,213,472. Fuel cell membranes. SIEMENS A.G. 13 Nov., 1967 [3 Dec., 1966; 8 Sept., 1967], No. 51623/67. Heading H1B. [Also in Divisions C3, D1 and D2] A membrane for use in an electrochemical cell, particularly a fuel cell, comprises a fibrous material and a polymeric binder formed by hydrolysing in situ a copolymer of butadiene, styrene and acrylonitrile. The hydrolytic agent may be an alkali, in particular the alkaline electrolyte in the cell. The fibrous material may be of asbestos, glass, carbon or polypropylene fibres in the form of a felt, fleece, woven fabric or paper. The copolymer may be cross-linked e;g. by adding a peroxide to the binder before it is applied to the fibrous material, and subsequently heating the finished diaphragm to cross-link it. In Example 1, the copolymer is added to an aqueous dispersion of asbestos fibres and precipitated by ammonium alum. In Example 2, a felt of carbon fibres is impregnated with a dispersion of the polymer, introduced into a bath of ammonium alum solution, washed, pressed and dried. In both examples, the hydrolysis is with KOH.
Patent GB-1135432-A (GB)
Title: Improved means for securing a line to a support
IPC: H01B17/22
Filed: 1965-12-06
Abstract: 1,135,432. Supporting cables. TEXTRON Inc. 6 Dec., 1965 [10 Dec., 1964], No. 51683/65. Heading DIT [Also in Division H2] An arrangement for securing a line L to a support member 14, comprises a line tie formed with a bight portion 10a in surrounding engagement with the support 14 and with a pair of resilient helical legs 11 surrounding the line and extending in opposite directions from the support, the arrangement being characterized in that the bight 10a is wrapped in tight engagement around the support 14 so as to be distorted within its elastic limits to provide resilient tension on the legs 11 to pull the legs and the line towards the support. As the legs 11 are applied to the line L the bight portion is twisted so that torsional energy is stored in the bight. The wires forming the bight portion 10a may be formed as (a) a helical ribbon; or (b) twisted to form a hard twist, or (c) formed from rods that are substantially straight. There may be friction means e.g. aluminium oxide, cemented to the inner surface of the helical legs. The specification describes and illustrates several embodiments of the arrangement.