baber/WOPTO huggingface dataset:
Patent GB-1315317-A (GB)
Title: Shearing foil for a dry shaver
IPC: B26B19/38
Filed: 1970-08-26
Abstract: 1315317 Foil for dry shaver SUWA SEIKOSHAKK 26 Aug 1970 [12 Sept 1969] 41117/70 Heading B4B A shearing foil for a dry shaver has apertures 1 each of which has a periphery with alternate concave and convex portions and is separated from neighbouring apertures by a bridge of foil material of substantially constant width. Preferably the portions are equi-angularly spaced and there are three of each kind. The concave portions may be arcs of a common circle.
Patent GB-1088725-A (GB)
Title: Polymerization of cyclic esters
IPC: C08G63/82
Filed: 1964-10-09
Abstract: Cyclic esters of the formula <FORM:1088725/C3/1> wherein each R is hydrogen or an alkyl, aryl, aralkyl, alkaryl, cycloalkyl, halo, haloalkyl, alkoxyalkyl, alkoxy or aroxy group or is part of an aromatic or cycloaliphatic ring fused to the cyclic ester ring, there being no more than 4 groups R present, A is an oxy or thio group, x and y are each 1-15, z is 0 or 1 and x + y + z is not 3, and there are not more than 18 atoms in the cyclic ester ring, are polymerized by contact with a product of the reaction of up to 1.6 mols. of water with 1 mol. of a hydrocarbylaluminium compound.  Lists of suitable lactones and oxalactones are given.  Preferred are those containing 4 or 6-8 carbon atoms in the lactone ring, particularly unsubstituted or alkyl-or alkoxy-substituted b -propiolactones,d -valero-lactones, e -caprolactones or ketodioxans.  The hydrocarbylaluminium compounds may be mono- or dihydrocarbyl aluminium hydrides or trihydrocarbylaluminiums, the alkyl, particularly isobutyl compounds being preferred.  (Lists are given.)  The hydrocarbylaluminium compounds and water are preferably reacted in approximately equimolar ratios.  They are preferably prepared by mixing hydrocarbon solutions of the two reactants.  In general 0.001-10 weight per cent of the catalyst (preferably 0.05-1%) is used, and the temperature of the polymerization process is preferably 10-200 DEG  C.  The products have molecular weights of, e.g., 700-750,000.  In example, products from the reaction of various amounts of water with tri-iso-butyl-aluminium or tri-isopropylaluminium are used to catalyse the polymerizations of e -caprolactone, d -valerolactone, #z-enantholactone, 8 - hydroxy - octanoic acid lactone, 13-hydroxy - tridecanoic acid lactone, b ,g  - dimethyl - d  - valerolactone, g  - (1 - isopropyl - 4 - methylcyclohexyl) - e  - caprolactone, 2,3,4,5-tetrahydrobenzoxepin - 2 - one and 3 - ethyl - 2 -keto-1,4-dioxan, and of a 70:30 mixture of e -caprolactone and methyl-e -caprolactones.  Uses.-Cosmetics, polishes, waxes; cellulose size, antistatics for fibres, coatings, impregnation lubricant thickeners, oil additives, polyvinyl resin plasticizers; shaped articles, films and fibres.
Patent GB-1323016-A (GB)
Title: Carburettors provided with an accelerator pump
IPC: F02M7/08
Filed: 1971-09-06
Abstract: 1323016 Spray carburetters SOC INDUSTRIELLE DE BREVETS ET D'ETUDES 6 Sept 1971 [21 Sept 1970] 41404/71 Heading F1B The pumping chamber 9 of the accelerator pump 8 is connected to the constant level chamber 6 by an inlet valve 11, which is located below the fuel level N, and to the chamber above the fuel level via an orifice 24 and discharges to the induction passage 1 through a valve 13 and an orifice 14. The flat inlet valve element co-operates with a substantially vertical seat 26 and opens in response to a slight decrease in fuel level in the chamber 9 caused by fuel vaporisation. The chamber 6 is vented to the intake 4 through a passage 25. 'The pump 8 may comprise a piston and may be operated by the suction downstream of the throttle valve 2. The orifice 24, which is at most a quater of the size of the orifice 14, may be 0À35 mm in diameter.
Patent GB-1446035-A (GB)
Title: Hologphic systems for recording and reading out a network of interference fringes in the form of refractive index variations within the body of a photosensitive electro-optical material
IPC: G11C13/04
Filed: 1973-09-05
Abstract: 1446035 Electro-optic holograms THOMSON-CSF 5 Sept 1973 [8 Sept 1972] 41861/73 Heading H3B In a holographic system in which a subject is recorded as a pattern of refractive index variations within a plate of photosensitive electrooptical material, a unidirectional electric biasing field is applied through the plate, and in its plane, either during the read-out phase only, or in a first direction for the recording phase, and in the opposite direction and of different intensity for the reading phase. A holographic optical system is described, Fig. 2, comprising a coherent optical source 1 producing a beam 10 divided at a splitter 2 into object and reference beams 11, 12. The reference beam 12 illuminates a plate 6 of electro-optical material, e.g. of lead and lanthanum titano zirconate containing metal impurities particularly iron, silver, bismuth and copper, by way of a mirror 30 and an objective lens 32. The object beam 11 intersects the reference beam in a holographic storage plane within the plate after passing through objective lenses 31, 41 and a non- linear transparency subject 5. To enable several different holograms to be recorded in different planes within the plate, the beam splitter and the mirror are adjusted to change the inclination of the reference beam, each discrete inclination corresponding to a different plane. A selected hologram is read-out by terminating the object beam and replicating the recording inclination of the reference beam. During recording a D.C. potential is applied between electrodes 61 and 62 which is reversed and charged in value during the read-out phase. The electro-optic material may have a Curie point above or below the operating temperature, the most suitable potentials required in terms of birefringentelectrical bias characteristics being discussed.
Patent GB-1399415-A (GB)
Title: Edible mixture
IPC: A23L13/40
Filed: 1973-09-06
Abstract: 1399415 Meat composition containing textured protein D J MALIN 6 Sept 1973 [12 Sept 1972] 41955/73 Heading A2B Cominuted animal muscle tissue, textured protein and a binding and flavour-imparting cominuted natural animal tissue, that is kidney, liver, heart, gizzard sweetbreads and mixtures thereof are mixed and formed into a patty and cooked. Salt and spices to taste may be added.
Patent GB-1525566-A (GB)
Title: Apparatus for discharging particulate material
IPC: A01C15/16
Filed: 1974-09-27
Abstract: 1525566 Discharge of particuiate material PB BETTINSON & CO Ltd 18 Sept 1975 [27 Sept 1974] 42023/74 Heading AID A stationary metering means co-operates with a rotatable compressible fixed-axis roller at a level which is not higher than the axis of the roller to meter the discharge of seed or particulate fertilizer from the straight exit slot of a container and to seal the exit slot of the container when the roller is not rotated. In Fig. 3, the metering means is formed by the edge 7 of a metal plate 8 which is adjustably mounted on a support bar 9 to compensate for wear or shrinkage of the compressible covering 4 of the rotatable roller 2. The bar 9 may be rotated around its axis into different settings to adjust the gap 13 for different seed sizes. The container 1, 1 is mounted on a wheeled frame (not shown), and the roller 2 is rotated via a gearbox (not shown) from the ground wheels. The compressible covering 4 may be sponge synthetic rubber, or plastics foam, or an inflatable material. Cups 17 lead the discharged material via conduits 18 to the ground which has been worked by tines or discs. The exit may be in the side of the container rather than the bottom as shown. In Fig. 4, the metering means comprises a glass plate 26 hinged at 27 (or 32) and adjustable at 28. In a modification, separate exits supply individual replaceable rollers on a common shaft.
Patent GB-894543-A (GB)
Title: Bedsteads
Inventor: ADAMS ENOCH
IPC: A61G7/005
Filed: 1959-12-11
Abstract: 894,543. Bedsteads. WHITFIELD (SALES) Ltd., S. B. Dec. 5, 1960 [Dec. 11, 1959], No. 42154/59. Class 52(2) In a bedstead of the kind comprising a frame 5 pivotally mounted on a base, manually operable means for tilting the frame consists of a longitudinally extendible unit pivotally connected between a point 7 on the base and a point 12 on the frame 5 spaced from the pivot axis of the latter, the unit comprising a pair of telescopically engaged tubular members 9, 11, a screw 14 supported on the member 11 and extending into the member 9, a screw threaded part 10 in the member 9 engaged with the screw 14, and a handle 16 for imparting relative movement of the screw 14 and the part 10 through the intermediary of a bevel gear.
Patent GB-1205241-A (GB)
Title: Holders for sticks of cosmetics and like materials
IPC: A45D40/06
Filed: 1967-09-15
Abstract: 1,205,241. Holders for lipstick and the like. EJECTORET S.A. 15 Sept., 1967 [22 Sept., 1966; 2 June, 1967], No. 42154/67. Heading B8P. A holder for a stick of material e.g. lipstick comprises a godet 21, an inner sleeve 23 and an outer sleeve 31, the sleeves being relatively rotatable, and the godet having two lugs 25 received in longitudinal slots in the inner sleeve and in two helical grooves in the outer sleeve. The inner sleeve has surfaces 48, 45 against which resiliently deformable tongues 44, 44A of the outer sleeve bear to prevent movement of the stick when not being used. An alternative embodiment (Fig. 4, not shown) has the tongues on the inner sleeve, the tongues in this instance having their outermost surfaces of a greater diameter than the inner surfaces of the outer sleeve against which the tongues abut. The bearing surfaces may be cylindrical or frusto-conical. The inner sleeve may alternatively have helical slots and the outer sleeve may have longitudinal grooves.
Patent GB-1076206-A (GB)
Title: Apparatus for drying and calcining crude phosphate
IPC: B01J2/26
Filed: 1964-10-19
Abstract: 1,076,206. Continuous sintering machines; drying and calcining apparatus. KNAPSACK A.G. Oct. 19, 1964 [Oct. 19, 1963], No. 42494/64. Addition to 913,796. Headings F4B and F4G. In the apparatus described in Specification 913,796 for drying and burning crude phosphate pellets, partition walls 51 defining suction chambers 23, 45 below the calcining zone 35 and hardening zone 40 are extended upwardly to a position immediately below the upper strand of the sintering grate 1, and chambers 3-7 defining a drying and preheating zone are fed with combined hot gases from the drying chamber 34 and waste gases from zones 35 and 40. A fan 32 extracts hot air from the cooling zone 34 and supplies drying chambers 4-7 via pipe 30 and branch pipes 29, a further branch 31 supplying grinding/drying apparatus. A chain-cooling blower 39 may supply some of this air via pipes 38 and apertures 36 to cool the delivery end of the sintering grate 1. A fan 26 draws exhaust gases from zones 35 and 40 through branch pipes 24 and pipe 25, supplying them through pipe 27 and branches 28 to drying chambers 3-5. Exhaust gases are finally withdrawn by a fan 14 through suction chambers 8, 9, 10, pipes 11 and 12 and filter chambers 13. Should the sintering grate 1 be stopped in emergency, air flaps 63 in chambers 23, 45 are opened and exhaust gases withdrawn through a duct 56 in a compensation chamber 42, said duct leading to an auxiliary chimney 58.
Patent GB-1189818-A (GB)
Title: Improvements in or relating to Data Recording Apparatus
Inventor: RITZERFELD GERHARD
IPC: G06C11/08
Filed: 1967-09-19
Abstract: 1,189,818. Typewriters. G. RITZERFELD. 19 Sept., 1967 [21 Sept., 1966], No. 42659/67. Heading B6F. [Also in Division B4] A punched or printed record of data printed on an original 19 by a typewriter or like machine 21 is produced on a record carrier 1 of card or strip form by apparatus comprising a line of dies 42 arranged above a line on the record carrier 1 and operated in groups to punch or imprint a coded impression representative of a character printed by the typewriter, and a distributer arranged to actuate each group of dies in succession along the line in response to electrical impulses from the typewriter keys. The record carrier 1 may comprise a card divided into a plurality of lines, each line comprising twenty character spaces each of four binary bits, the line of dies correspondingly comprising eighty dies, operated in twenty groups of four. The distributor comprises a fixed disc 34 having twenty groups of four radially aligned contact points, each contact point being connected to an electromagnet 37 operating a respective one of the dies 42, and a rotatable arm 36 carrying four aligned contact points connected to a coder 32. Depression of a key 22 of the typewriter closes a switch 31 and causes an electrical impulse to pass to the coder 32, which passes impulses through the contact points of the arm 36 to operate corresponding dies of one of the groups. The impulse also actuates an electromagnet 150 after a period of time caused by a delay element 47, and thereby acts through pawls 146, 147 and a ratchet wheel 145 to rotate the arm 36 into contact with the next adjacent row of contacts on the disc 34, so that the next group of dies may be operated. Key operation.-Impulses from the coder 32 actuate electromagnets 37, one for each die 42. The armature of an electromagnet lifts a link 38 and pivots a lever 40 which depresses the corresponding die 42 against the action of a spring 43. The dies may perforate or imprint the card 1. Line spacing.-A line shift of the typewriter causes a projection 53 associated with the typewriter platen 30 to close a switch 52 and thereby actuate an electromagnet 56. The armature 57 of the electromagnet pivots a pair of pawls 58, 60 to permit a ratchet wheel 59 to rotate a pin feed roller 63 under the action of a coil spring 61. A toothed wheel 67 engages teeth associated with the roller 63 and enables the spring 61 to be wound up. The electromagnet 56 may alternatively be actuated through contacts 151, 152 on the arm 36 and disc 34 respectively, after a revolution of the arm 36 has been completed. In an alternative embodiment, (Figs. lb, 4, not shown), the record carrier (5) comprises a strip having two character spaces per line, and the line feed mechanism is actuated on alternate typewriter impressions.
Patent GB-1132566-A (GB)
Title: Removal of strontium 90 from milk by isotopic exchange
IPC: G21F9/12
Filed: 1967-09-19
Abstract: 1,132,566. Removing radioactive strontium from milk. UNITED STATES ATOMIC ENERGY COMMISSION. 19 Sept., 1967 [23 Dec., 1966], No. 42690/67. Heading A2E. [Also in Division G6] Milk contaminated with radioactive strontium is contacted with strontium pyrophosphate or calcium pyrophosphate attached to a silica-alumina porous support. Under preferred conditions, the milk is treated with 8% by weight of the pyrophosphate in batchwise or continuous operation with or without recirculation, at a temperature within the range 5‹-30‹C. and pH of 5.2-8.0, and the porous support consists of microspheres or pellets of silica and alumina in substantially stoichiometric proportions. Reference is made, by way of comparison, to the effects of employing the pyrophosphate unsupported or attached to supports made of activated alumina, alumina catalyst pellets, activated charcoal, ceramic firebrick and pumice.
Patent GB-1216749-A (GB)
Title: Apparatus for dispensing of liquid metals out of furnaces or pouring ladles by means of an electromagnetic conveyor channel
IPC: B22D39/00
Filed: 1968-09-09
Abstract: 1,216,749. Discharging molten metal. AEGELOTHERM G.m.b.H. 9 Sept., 1968 [20 Oct., 1967], No. 42764/68. Heading F4B. An upwardly sloping electromagnetic launder 2 discharging a holding or melting furnace 1 has above the level of the molten bath 3 an electrode 9 which when reached by the molten metal energizes a time relay Z to keep the inductor 6 energized until the collecting vessel is full. The process is started by closing switch E, energizing relay C to close contact C 2  and energize the inductor 6, and is completed by relay Z opening an interruptor contact Z 1  thereby tripping out relay C and opening contacts C 1  and C 2 . Molten metal then flows back down the launder into bath 3 until switch E is closed again.
Patent GB-1351148-A (GB)
Title: Silver halide photographic emulsions for recording electron beams
IPC: C09B23/10
Filed: 1971-09-14
Abstract: 1351148 Sensitized silver halide emulsions FUJI PHOTO FILM CO Ltd 14 Sept 1971 [16 Sept 1970] 42861/71 Heading G2C A photographic emulsion for electron beam recording comprises silver halide grains having a mean grain diameter not exceeding 0À2 microns and at least one aminostyryl base of formula: in which Z completes an optionally substituted 5 or 6 membered heterocyclic ring, R 1  and R 2  each represent lower alkyl (1-4C), L is optionally substituted methine and n is 1 or 2.
Patent GB-1024274-A (GB)
Title: Improvements in or relating to thermodynamic reciprocating machines of the displacer-piston type
IPC: F02G1/053
Filed: 1962-11-13
Abstract: 1,024,274. Refrigerating. PHILIPS GLOEILAMPENFABRIEKEN N.V. Nov. 13, 1962 [Nov. 16, 1961], No. 42903/62. Heading F4H. [Also in Division F1] A thermodynamic reciprocating machine (refrigerator or heat pump) of the displacer piston-type, comprises two identical parallel crank-shafts 27 which are coupled to each other for synchronous rotation in opposite directions and with equal angular velocities and which are located symmetrically about a plane parallel to the axes of the crank-shafts and passing through the centre line of the machine and at least one pair of connecting rod mechanisms each comprising at least one pair of connecting rods which are connected to the crank shafts through crank-pins 28 and the ends of which remote from the crank-shafts are interconnected, the interconnected ends of the connecting rods of one mechanism being located on one side of the plane passing through the axes of the crankshafts and the interconnected ends of the connecting rods of the other mechanism being located on the other side of the plane and each mechanism being connected with at least one piston or piston-like body 2, 3 and the axes of the crank-pins of each crank-shaft are spaced from the axis of the crank-shaft by such relative distances and the connecting rods have such lengths that the piston or piston-like bodies perform unequal strokes. The relative dimensions of the parts in order to obtain balancing are specified. Although the yokes of Fig. 3 (not shown) are connected with only one piston and one displacer respectively one yoke can be connected with a plurality of pistons and the other with a corresponding number of displacers in a multi-cylinder machine. One or both yokes may be connected with the piston of a compressor, Fig. 5 (not shown), comprises a modification including three parallel cylinders. In the operation of the machine the absolute temperature in the space of each cycle of the higher temperature is preferably at least six times higher than the absolute temperature in the space of the same cycle having the lower temperature.
Patent GB-1396067-A (GB)
Title: Microwave magnetron
IPC: H05B6/64
Filed: 1973-09-12
Abstract: 1396067 Magnetrons RAYTHEON CO 12 Sept 1973 [24 Oct 1972] 42925/73 Heading H1D A multicavity magnetron with anode 14 has permanent magnets 96 and 98 connected by axially spaced magnetic plates 84 and 86, and cooling fins 104 contacting the side wall of the anode and partially surrounding the magnets, the plates 84 and 86 being rectangular with bevelled corners to form tapered edges 88, which edges are substantially longer than the remaining portions of the narrow sides of the rectangle, and correspond as closely as possible to the surfaces of the magnets, which are cylindrical as described. Unwanted radiation is suppressed by a braided gasket 90 around the antenna dome 46, and by a by-pass capacitor and ferrite rings housed with the cathode leads within the perforated box 78. Air 106 is driven by a fan through the cooling fins.
Patent GB-1514116-A (GB)
Title: Analogue to digital converter employing common mode rejection circuit
IPC: H03M1/56
Filed: 1976-10-15
Abstract: 1514116 Analogue-to-digital converter FAIRCHILD CAMERA & INSTRUMENT CORP 15 Oct 1976 [31 Oct 1975] 42961/76 Heading H3H In an a-d converter of the type wherein the difference between two input voltage levels E IN  and E RET  is measured by the time taken by a reference ramp to pass between those levels, common mode noise on the inputs is isolated and used to modulate the reference ramp. The inputs may be filtered to remove common and other noise in addition but remaining common noise is isolated by either an isolating amplifier 22 or differentiating circuit and applied to the floating non-inverting input 52 of an operational amplifier integrating circuit 44, generating a ramp from stabilized source 64.
Patent GB-1021791-A (GB)
Title: Improvements in and relating to contact assemblies
IPC: H01H51/22
Filed: 1963-10-31
Abstract: 1,021,791. Arc rupturing in switches. SOC. CHAUVIN ARNOUX. Oct. 31, 1963 [Nov. 8, 1962], No. 43078/63. Heading H2B. A single permanent bar magnet 1 (Figs. 4 and 5, not shown) provides magnetic blow-out for a plurality of contact sets 15, 16, 17, arranged radially thereto. The bar 1 is enclosed in an insulating tube 19 made of laminated glass which is held in position transversely by partitions 29 of an insulating base and longitudinally by rods 21 passing through holes in the tube. The rods 21 are secured by terminal connectors 20 in the base. Normally open, normally closed, or change-over contact sets may be used and the blow-out arrangement may be provided in an electromagnetic relay, a manual switch, or the like.
Patent GB-1525495-A (GB)
Title: Method of securing a wall-plug in masonry
IPC: E04B1/41
Filed: 1975-10-21
Abstract: 1525495 Screw sockets A FISCHER 21 Oct 1975 [30 Oct 1974] 43135/75 Heading F2H A method of cementing a wall-plug particularly in hollow-chamber brick 1 involves inserting the plug 3 into a bore 2 and then injecting cement through a bore 8 in the plug and out into the surrounding region via an opening provided, for example, by a slot in the insertion end of the plug. Prior to its insertion into the bore 2 the plug 3 is covered with a flexible sheath 11 so that when the cement is injected it fills and expands the sheath. The sheath may be secured to the plug by a tubular sleeve 12 and the open end of the sheath may be crimped over the sleeve. An injection device 7 may be used to introduce the cement which may be mortar, a binding agent or a foam plastics material.
Patent GB-1487650-A (GB)
Title: Protein isolates and their preparation
IPC: A23J1/14
Filed: 1975-10-23
Abstract: 1487650 Sunflower seed protein isolates INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE 23 Oct 1975 [23 Oct 1974] 43592/75 Heading C3H A process for isolating protein from sunflower seeds comprises: (1) slurrying or suspending proteinaceous press cake containing mucilaginous material in a volume in litres of 10-15 times the weight in kg. of press cake of a solution of one or more alkaline earth metal salts containing a magnesium salt and sodium sulphite and then adding to the suspension or slurry a concentrated solution of an alkali in an amount sufficient to solubilize the proteins; (2) separating in known manner the protein extract from the insoluble residue; (3) acidifying the resulting clarified protein extract with an acid solution to pH 4À5-5À5 to precipitate the proteins, and (4) separating and washing the protein precipitate. The alkaline earth metal salt solution may comprise calcium acetate, calcium lactate or calcium chloride together with magnesium acetate, chloride or lactate.
Patent GB-1098576-A (GB)
Title: Basting device for zigzag sewing machines
IPC: D05B81/00
Filed: 1965-10-14
Abstract: 1,098,576. Sewing machines. NECCHI SOCIETA PER AZIONI. Oct. 14, 1965 [May 6, 1965], No. 43595/65. Heading D1G. In a zig-zag machine a busting device comprises an arm 30 projectable manually below the needle plate adjacent the needle, for deflecting the needle thread loop out of the path of the point 19 of the shuttle or hook. The arm deflects the loop at one extreme lateral position of the needle only.