baber/WOPTO huggingface dataset:
Patent GB-1156705-A (GB)
Title: Improved Strip Mill.
IPC: F16B15/00
Filed: 1966-10-04
Abstract: 1,156,705. Rolling. ALLMANNASVENSKA ELEKTRISKA A.B. 4 Oct., 1966 [5 Oct., 1965; 20 June, 1966], No. 44191/66. Heading B3M. [Also in Division G1] The distribution of tension across a strip in a strip mill is measured by a roll 1, Fig. 1b over which strip passes which is divided into a plurality of axially disposed sections 5, each section being provided with at least one pressuresensitive transducer 6. The electrical outputs from the transducers are first converted into signals representative of strip tensile stress and then are each compared with a signal representative of the average strip stress to provide an indication of the deviations from average across the strip. The transducers may each be formed by a magneto-strictive core having an exciting winding 10 and a measurement winding 11, arranged as a variable transformer and located in the roll in grooves or recesses. Pairs of transducers may be arranged diametrically in each section of the roll, Figs. 2a-2d (not shown), the exciting and measurement windings respectively being connected in series, so that the output signal is compensated for the effects of variations in temperature, stress &c. in the roll itself. Similarly, when only one transducer is provided per section, those of a number of adjacent sections may be connected together to provide the above compensation. The exciting windings of all the transducers are supplied with squarewave signals from a common source via slip rings 17, 18, Fig. 5. The output signals from each serially connected set of transducers are fed via a filter 27, phase-sensitive rectifier 28, amplifier filter 29 to a sensitivity regulator 30 in which they are converted to signals indicative of local strip tensile stress. The regulator is controlled for this purpose by a servo device 44 to which signals representative of the difference between the average strip tensile stress, obtained from an averager 39 to which all the regulators 30 are connected, and the average strip tensile stress, from a tensiometer 42 calibrated to measure stress by a strip cross-section switch 45, are fed from a differentiator 41. The signals representative of local strip stress are then supplied to a differentiator 31 where they are compared with signals from the tensiometer 42 to provide signals representative of deviations of strip stress from the average strip stress which are indicated at 33. When a number of sections are serially connected together, discriminators are provided to separate the signals from each section into individual channels. The device may be connected to a system for automatically controlling the gauge reduction of the strip to maintain strip tension constant.
Patent GB-1449634-A (GB)
Title: A tank for the storage of liquid at low temperature
IPC: F17C3/02
Filed: 1973-09-21
Abstract: 1449634 Cryogenic tanks ISHIKAWAJIMAHARIMA JUKOGYO KK 21 Sept 1973 [22 Sept 1972 30 Jan 1973] 44349/73 Heading F4P A cryogenic tank comprises a membranous vessel 1 which, at ambient temperature, has dimensions greater than those of a rigid shell within which it is located so that it has to be deformed when placed in the shell at ambient temperature, the deformation being such that at the working cryogenic temperature the membranous vessel contracts to relieve bending stresses therein in order that the vessel is only subject to hoop tension at the low pressure. Numerals la, 1b, 1c in Fig. 4 show the membranous vessel as deformed at ambient temperature, undeformed at ambient temperature, and in its low temperature state respectively. Fig. 6 shows how various panels X, Y, Z, P are connected to form a membrane.
Patent GB-988020-A (GB)
Title: Transformer windings for heavy-current installations
IPC: H01F27/28
Filed: 1962-11-23
Abstract: 988,020. Transformers. MATERIEL ELECTRIQUE S.W. Nov. 23, 1962 [Nov. 23, 1961], No. 44362/62. Heading H1T. Each phase winding of a transformer is made up of at least two juxtaposed coils (Fig. 1) each comprising two or more windings 1, 2 of spiral form, wherein each winding has a number of component paths 1, 1<SP>1</SP>, 2, 2<SP>1</SP> which are insulated from one another and the paths of one winding are separated from one another by at least one path of the other winding(s) to equalize reactance and eddy current effects therein. Coil interconnections may be metallic strips 9 (Fig. 7) which are fixed to each coil before it is wound, while coil input and output connections may be flexible tongues 5 (Fig. 1). The component paths may be insulated from one another by layers of solid insulation wound with the coil, or by thin oil ducts, such as are used to insulate each complete turn of the coil and the windings may be of wide metallic strip. The transformer may be used for example in one phase of a three phase rectifier, connected in either a double stat or a bridge arrangement.
Patent GB-1331464-A (GB)
Title: Photosensitive materials and their use in producing coloured  images
IPC: G03C5/56
Filed: 1970-09-17
Abstract: 1331464 Photosensitive material MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 17 Sept 1970 [17 Sept 1969] 44382/70 Heading C3P [Also in Division G2] A photosensitive composition comprises a photocrosslinkable polymer, a solvent for the polymer and either tetracyanoethylene (TCNE) or tetracyanoquinodimethane (TCQD). The composition may be coated on a support and imagewise exposed to cross-link and produce a coloured image in the exposed areas; the coloured image is stated to be produced by forming a complex between the solvent released in the exposed areas and TCNE or TCQD. Specified polymers are polyvinyl cinnamate and the ester of polyvinyl alcohol and p-azidobenzoyl chloride. Specified solvents are xylene, cyclohexanone, ethyl and butyl acetate, dioxane, methyl ethyl ketone and ethylene glycol monomethyl ether which produce different colours with TCNE.
Patent GB-1436603-A (GB)
Title: Method of selectively etching multilayer structures
IPC: C23F1/00
Filed: 1973-09-25
Abstract: 1436603 Etching WESTERN ELECTRIC CO Inc 25 Sept 1973 [25 Sept 1972] 44776/73 Heading B6J A structure having a first layer comprising Al x1 Ga 1-x1  As and a second layer adjacent the first layer comprising Al x2 Ga 1-x2  As wherein x 2 > x 1  and the value of x l  being from 0-0À25, the value of x 2  being less than unity and x 2  - x 1  # 0À02, is etched in an aqueous solution comprising H 2 O 2  and a source of hydroxyl ions (e.g. NH 4 OH), the pH of the solution being from 6 to 8 so that the first layer is preferentially etched relative to the second layer. As shown a substrate of n-type GaS 10 supports a layer of ntype AlGaAs 11, a layer of n-type GaAs 12 and a layer of p-type AlGaAs 13. The assembly is etched in an aqueous solution of 10-70% by weight H 2 O 2  containing NH 4 OH at solution pH of 7À05 to give preferential attack on layer 12, Fig. 1B.
Patent GB-1487980-A (GB)
Title: Suspension of xanthan gum
IPC: C09D7/45
Filed: 1975-10-31
Abstract: 1487980 Xanthan gum suspensions MERCK & CO Inc 31 Oct 1975 [4 Nov 1974] 45423/75 Headings C3U and C3F Pumpable xanthan gum suspensions are obtained by mixing 20-50% (w./v.) of the xanthan gum and 0-5 to 10% (w./v.) of a hydroxyalkyl cellulose derivative in a C 1-5  alcohol solvent or in an alcohol-water solvent system. The suspension is preferably made by adding the xanthan gum to a previously prepared blend of the hydroxyalkyl cellulose derivative and the solvent. The cellulose derivative preferably has the formula where R is the cellulose residue and R<SP>11</SP> is a straight or branched C 3 -C 5  alkyl chain, e.g. hydroxypropyl cellulose, hydroxypropyl methyl cellulose, or hydroxybutyl methyl cellulose.
Patent GB-1476400-A (GB)
IPC: H01H9/02
Filed: 1974-10-21
Abstract: 1476400 Mechanical switches EATON GmbH 21 Oct 1974 [27 Oct 1973] 45468/74 Heading H1N A pendant control for an electric hoist comprises a two-part housing 2 Fig. 1 having a handle 3 and enclosing a plurality of switches 6 for actuation by a rocker 8 mounted in proximity to the handle 3 for operation by the thumb of the operator's hand holding the handle 3. The rocker 8 is attached to a shaft 42 having a multiplicity of cams (44a-c) Fig. 4 (not shown) for selective actuation of the switches 6. The rocker is restored by a retractive spring 48 and has detented positions provided by a pressure catch 50. A base plate 26 holding various control elements is retained in the housing by a pair of opposed grooves 28.
Patent GB-1165950-A (GB)
Title: An Agricultural Machine having a Conveying Apparatus which is Advanced Intermittently
IPC: B65G23/00
Filed: 1967-10-06
Abstract: 1,165,950. Material distributers s AMAZONEN WERKE H. DREYER. 6 Oct., 1967 [10 Oct., 1966], No. 45755/67. Heading A1D. [Also in Division B8] An agricultural machine in the form of a transport vehicle 3, Fig. 1, towed behind a tractor (not shown) comprises an endless belt 1 (or screw or other conveyer) on a frame 2 driven intermittently through a ratchet device 13 (from a power source not shown), by a shaft 8, a reduction gear 9 with a drive shaft 10 carrying a crank 11 with a rod 12 acting as a stroke element for the ratchet device 13. Material is carried to the end of the vehicle 3 to fall to the ground, into a storage bin, on to a further conveyer or to be spread on the ground by a spreader (not shown). The ratchet device 13 comprises a free wheel 14 fixed on a shaft 7, an arm 15, a return spring 16 and an adjusting screw 17 used to adjust the stroke of the arm 15 (the rod 12 having a sliding connection with the arm 15 - see Fig. 4). In order to stop the belt 1 without altering the adjustment made by the screw 17 a locking device 24 is provided comprising a cam 25 fixed to the free wheel 14 and a detent 26 on the lower part 27 of a pawl 28 pivoted on a belt 29. The detent 26 can engage the cam 25 at the forward end position of the arm 15 the movement of the pawl 28 being limited by a stop 32 (a catch 33 prevents the pawl 28 from moving too far in the release position, a spring 35 holds the pawl 28 in either of its two positions). Fig. 4 shows a modification wherein a second locking device 48 is provided comprising a pawl 49 arranged to co-operate with a cam 52 which may be adjusted in position along a slot 54 to give a second pre-selected stroke of the arm 15. As shown in Fig. 4 both pawls 28 and 49 are remotely controlled by ropes 45, 46 and 59, 60, pawl 28 also having a hand lever 37. With this embodiment different rates of feed of material to a spreader may be pre-set for uphill and downhill operation.
Patent GB-1480887-A (GB)
Title: Automatic container filling apparatus
IPC: B67D7/36
Filed: 1975-11-10
Abstract: 1480887 Fluid-pressure servomotor systems NALCO CHEMICAL CO 10 Nov 1975 46410/75 Heading G3P [Also in Division B8] An assembly 11 includes a filling nozzle 26 and two probes 34, 35 which sense the product level in a drum 21 and thereby, through a fluid logic circuit operating a pneumatic actuator, control a valve in a cabinet 10 of a portable automatic filling apparatus, the valve inlet 13 being connected to a product supply 15 and the outlet 14 to the nozzle 26. Button 41 is pressed and the valve opens fully to fill the drum until product contacts the probe 35 when the valve switches to an intermediate position and filling continues at a slower rate. When product reaches probe 34, the valve closes fully and filling stops. An alarm sounds when the valve switches to the intermediate and closed positions and indicators 43, 44, 45 indicate the valve position. An emergency stop button 42 is provided and the fluid logic circuit includes means preventing the actuator driving the valve to the fully open position from the intermediate position on pressing button 41. A flange 32 integral with nozzle 26 rests on a bush around the drum bunghole and adjustably supports probes 34, 35 in vertical holes. A manual shut-off valve 29 is provided and the apparatus is rinsed by connecting it to a cold water supply.
Patent GB-1319323-A (GB)
Title: Multi-ply plastics film
IPC: B32B27/00
Filed: 1970-10-01
Abstract: 1319323 Laminates BADISCHE ANILIN- & SODA-FABRIK AG 1 Oct 1970 [2 Oct 1969] 46674/70 Heading B5N A three-ply plastics film consists of (1) a first ply having a thickness of form 0À01 to 0À200 mm. and consisting of a homopolymer of ethylene or of a copolymer of ethylene and vinyl acetate containing up to 15% by weight of vinyl acetate units, (2) an intermediate ply having a thickness of from 0À005 to 0À050 mm. and consisting of a copolymer containing from 60 to 90% by weight of ethylene units, from 0À5 to 20% by weight of units of an ethylenically unsaturated acid, e.g. acrylic acid, from 0À5 to 20% by weight of units of an ester of an ethylenically unsaturated acid, e.g. f-butyl acrylate and from 0À3 to 5% by weight of isobutylene units and (3) an outer ply having a thickness of from 0À01 to 0À200 mm. and consisting of a synthetic thermoplastic polyamide. Specified polyamides are polycaprolactam, polycapryllactam, polylaurolactam, polyoenantholactam, nylon 6-6, nylon 6-10, nylon 6-12, poly-11-aminoundecanoic acid and the corresponding copolyamides. The film may be made by applying heat and pressure to an assembly of plies or by simultaneous extrusion.
Patent GB-1044069-A (GB)
Title: Improvements relating to electrical switches
Inventor: HAYWARD WILLIAM HERBERT
IPC: H01H9/36
Filed: 1963-11-27
Abstract: 1,044,069. Arc rupturing in switches; electromagnetic switches. DONOVAN ELECTRICAL CO. Ltd. Oct. 21, 1964 [Nov. 27, 1963], No. 46802/63. Heading H2B. A wall 23 of an arc hood 10 which at least partially encloses one or more sets of electromagnetically operated contacts 15, 20, 29 is provided with a plurality of tubular conducting members 24 through which the arc products are vented and thus cooled. The arc hood comprises a plurality of parallel walls 11 attached to the wall 23 and between which extend insulating blocks 14, 19 which carry U-shaped contact members 16, 21 whose ends 16c, 21c are bent over to carry contacts 15, 20, the shape of members 16, 21 being such as to create a current loop which tends magnetically to drive the arc towards the tubular members 24. The inwardly extending portions 24a of members 24 which are insulated from one another also act as arc splitter electrodes. The outlets of members 24 extend into a chamber 25 formed in wall 23 and closed by an insulating (s.r.b.p.) plate 26.
Patent GB-1400029-A (GB)
Title: Grafted ethylene polymers
Inventor: ALBERTS HEINRICH
IPC: C08F255/02
Filed: 1972-10-12
Abstract: 1400029 Grafted ethylene polymers BAYER AG 12 Oct 1972 [14 Oct 1971] 47021/72 Heading C3G A graft polymer comprises, as substrate, an ethylene homopolymer or a copolymer of ethylene with a vinyl ester, an alpha, betamono-olefinically unsaturated carboxylic acid containing 3 to 5 carbon atoms, or a derivative thereof, and, as superstrate, a copolymer of acrylonitrile or methacrylonitrile and at least one mono-olefin having from 2 to 18 carbon atoms. Examples are given of the production by a solution or dispersion polymerization of (a) ethylene-vinyl acetate copolymer grafted with acrylonitrile and isobutylene, propylene or ethylene; with methacrylonitrile and isobutylene; with acrylonitrile, propylene and acrylic acid, ethyl acrylate or acrylamide; or with acrylonitrile, isobutylene and methacrylic acid; or with acrylonitrile, 2-ethylhexyl acrylate and butene-1; (b) ethylene-acrylic acid copolymer grafted with acrylonitrile and propylene; and (c) polyethylene grafted with acrylonitrile and propylene, cyclopentene, butene-1 or isobutylene.
Patent GB-1527730-A (GB)
Title: Carburettor having means for controlling fuel flow in response to air flow rate and manifold vacuum
IPC: F02M19/03
Filed: 1975-11-24
Abstract: 1527730 Controlling air-fuel ratio in carburetters CLEAN AIR CO Inc 24 Nov 1975 [25 Nov 1974] 48138/75 Heading F1B A carburetter including a device for adjusting the air-fuel ratio comprises an injection nozzle 6 co-operating with a valve body 7 which determines the fuel flow-rate in response to the position of an air-flow rate sensing member 12. The sensing member and valve body are connected by way of an arm 17 which is associated with a cam arrangement having adjacent cam surfaces 22, 23 and a cam follower, the point of co-operation of the follower and the cam surfaces being movable from one cam surface to another in response to movement of a member 29 adapted to sense the pressure in the induction pipe of an engine fitted with the carburetter. Movement of the sensing member 12 rotates arm 14 about axle 15 so that the cam causes arm 17 to raise or lower valve body 7. The cam surfaces may be formed on the arm 17 instead of the arm 14, which then forms the cam follower. The arm 17 is pivoted on arm 20, which is itself pivoted for rotation about guide member 10 by arm 24 connected to the member 29. The arrangement is such that cam surface 22 is used for part throttle operation and cam surface 23 is used for full and substantially full throttle operation in order to give a richer mixture for all air-flow rates and hence engine speeds.
Patent GB-1445882-A (GB)
Title: Transportable refrigeration apparatus for preserving perishables
IPC: F25D17/06
Filed: 1973-10-17
Abstract: 1445882 Transportable refrigerated containers THERMO KING CORP 17 Oct 1973 [26 Oct 1972] 48330/73 Heading F4H  A transportable container for preserving perishable cargo comprises a cargo chamber 50 and a compartment 25 containing the evaporator 30 of a refrigeration unit, cooled air from the compartment 25 passing through an exit nozzle 32 and a spaced conduit 34, having a flared inlet end 35 into the chamber 50. In operation, cooled air having a relatively high velocity and low temperature passing through the gap 60 between the nozzle 32 and the conduit 34 draws air of relatively low velocity and high temperature into the conduit 34 to form a tempered mixture which is discharged into the chamber 50 either directly or through pockets 41 formed between the roof 2 of the chamber and a closely woven fabric 40 secured to the exit end 36 of the conduit and to the roof, thereby providing a wider distribution of the mixture. A duct 38, open at both ends may be provided to enclose the adjacent ends of the nozzle and the conduit to improve the circulation of the tempered mixture. The floor of the chamber is formed of spaced grate members 14 through which air may pass to a channel 18 leading to the compartment 25.
Patent GB-1457871-A (GB)
Title: Freezers
IPC: F25D21/14
Filed: 1972-10-23
Abstract: 1457871 Refrigeration; defrosting HOOVER Ltd 21 Jan 1974 [23 Oct 1972] 48647/72 Heading F4H The base 16 of a freezer compartment 13 is formed with an aperture 20 containing a waterpervious seal 34 and a heater is provided for melting ice formed in the seal. As shown, the aperture extends through a partition 16 between the freezer compartment 13. and the main refrigerator compartment 15, and an evaporator plate 22, serving both compartments, is engaged by the seal 34 which is formed of open cell polyurethane foam. The evaporator is formed from roll bonded aluminium sheets and is provided with passageways 25 for refrigerant and, in the freezer compartment, with a space for an electric heating element 27. The freezer compartment includes a screen 37, formed with grilles 38, 39, and a fan 40. In operation, condensation formed in the rear of the freezer compartment fills the seal 34 and freezes. The heater in the freezer compartment is switched on periodically to defrost the upper part of the evaporator and to melt the ice in the seal, whereby water can flow down the whole of the evaporator into a trough 46. The lower part of the evaporator is thermostatically controlled to defrost on every "off" cycle of the compressor. Hot gas from the compressor may be used for defrosting in place of the electric heater. The partition 16 may be removable.
Patent GB-1321687-A (GB)
Title: Method for constructing a structural roofing unit for large spans
IPC: B28B23/04
Filed: 1970-10-14
Abstract: 1321687 Roofs L BACCI 14 Oct 1970 [15 Oct 1969 12 Nov 1969 25 Nov 1969] 48779/70 Heading E1W A structural roofing unit as claimed in U.K. Specification No. 1,280,004 is manufactured by pre-casting concrete elements, e.g. 1 which each include a portion of each of two span beams 8 and a portion of each of two edge beams 13, which portions have longitudinal bars, e.g. 11 for tensioning wires, and also include openings 14 at each end of each portion of a span beam, the elements having bevelled edges 15. The end beams 2, and portions 3, 4 and tie beams 5 are also precast, and the elements of the unit are assembled in their correct configuration; adjustable oblique tie rods 9 are positioned, with tensioning wires are passed through the bores, e.g. 11; the elements are connected up with in-situ concrete where necessary; and the tensioning wires and oblique tie rods are tensioned. Each element 1 has stiffening flanges 16, 17 thereunder, and tie rods 6 thereacross.
Patent GB-1318897-A (GB)
Title: Single phase hydraulic fluid containing water and corrosion inhibitor
IPC: C10M173/02
Filed: 1970-10-14
Abstract: 1318897 Hydraulic fluids BADISCHE ANILIN- & SODA-FABRIK AG 14 Oct 1970 [15 Oct 1969] 48806/70 Heading C5F Single phase hydraulic fluids comprise water, a polyvinylpyrrolidone and a corrosion inhibitor. The preferred corrosion inhibitors are sodium benzoate, borax, sodium nitrite and nitrate, sodium or potassium phenylglycide and benzotriazole (many others are specified). The fluids may also contain alkylene glycols and polyglycols and their ethers and esters (examples are given).
Patent GB-1123681-A (GB)
Title: Improvements in and relating to conveyors
Inventor: ADDICOTT DONALD WILLIAM RUSSEL
IPC: B65G65/28
Filed: 1963-12-11
Abstract: 1,123,681. Conveyers; piling material. G. T. SHOOSMITH. 11 March, 1965 [11 Dec., 1963], No. 49041/63. Headings B8A and B8E. A slueing, luffing conveyer mounted on a base 10 has four main parts: a rigid framework A, mounted for rotation about a vertical axis; a luffing boom B mounted on a pivot 26 with a retractable extension 11; a tail C mounted on a pivot 28 with a counterweight 12; and a tie D operatively connecting together the boom B and the tail C. The boom B has a conveyer belt 14 extending from a point beneath a feed hopper 16, while the extension 11 has a conveyer belt 18. The counterweight is such that it tends to cause the boom B to rise under all conditions. The boom B is luffed by a single acting hydraulic ram 20 connected so as to lift the tail C on its working stroke, the boom then being lowered. The perpendicular distance Rb, Fig. 2, of the tie D from the boom pivot 26 is greater than its perpendicular distance Rc from the tail pivot 28. The conveyer may be mounted to run on rails, Fig. 4 (not shown). When used for filling hoppers the retractable extension 11 is not necessary, in which case the outer end of the boom B may be bent downwards, Fig. 5 (not shown). The boom B may be provided with a depending detector (not shown) to bring control means or an indicator or alarm signal into operation on its meeting or being met by an obstacle such as the stack itself. The tie D may be non-rigid to safeguard the boom B against damage when positively held against being lowered while the tail C is being positively lifted.