baber/WOPTO huggingface dataset:
Patent GB-1233613-A (GB)
IPC: A62C3/02
Filed: 1968-06-18
Abstract: 1,233,613. Foam generators. NATIONAL FOAM SYSTEM Inc. 18 June, 1968 [31 Aug., 1967], No. 28988/68. Heading B1C. [Also in Division F1] Foam generators. In a foam generator in which air is blown through foam-forming liquid deposited by spray nozzles 110 on a frusto-conical stainless steel wire or nylon fabric mesh 112, the fan 76 is carried on the shaft 68 of a water turbine the discharge outlet 78 of which connects to a venturi mixer 80 whereinto the foam forming concentrate is induced through apertures 86, the mixture passing through a U-shaped conduit 96 to the spray nozzles. The water turbine (see also Fig. 3, not shown) comprises a hose coupling 46 having a partition 48 (see also Fig. 1, not shown) in which is mounted a ptfe bearing 52, and which is pierced with apertures 54, 56 through which water jets are projected against the turbine blades 74. Another ptfe bearing 64 is mounted in the turbine body 44; both bearings 52 and 64 act as combined journal and thrust bearings. The body 44 and loose coupling 46 may be aluminium alloy and the moving parts of phosphor bronze or other cupreous alloy. Reference has been directed by the Comptroller to Specification 1,135,929.
Patent GB-1239241-A (GB)
IPC: F41H7/10
Filed: 1968-02-07
Abstract: 1,239,241. Laying land mines FRANCE ARMED FORCES MINISTER OF. 7 Feb., 1968, No. 6158/68. Heading B7A. [Also in Division E1] Apparatus mounted on a vehicle for laying mines under the surface of the ground whilst the vehicle is in motion, comprises a carriage 1 consisting of two spaced side plates 30, 31 supported by four rollers 2 on a pair of rails 21, the rails being connected to the vehicle by a horizontal pivot 22. A tool 3 for planting the mines 26 consists of an arcuate casing having an arm 7 pivotally mounted on an axle 4 carried by the carriage 1. A lever 13 pivotally mounted at 14 is connected by crank arms 16 to the arm 7 and is actuated by a double-acting hydraulic ram 15 to lower the tool 3 into the ground as shown in Fig. 5 or to return it to the Fig. 3 position. A curved push rod 8 within the casing 3 has an arm 10 mounted on the axle 4, a face 11 on the arm 10 abutting a roller 17 carried by the lever 13. During a mine laying operation a sensing wheel 18 carried by an arm 19 is lowered into engagement with the ground by an hydraulic cylinder 20, the pressure variations in the cylinder due to variations in the ground surface being transmitted to a servovalve (Fig. 4, not shown) to control a cylinder 23 connected to the rails 21 at their end 27, whereby the rails are moved about pivot 22 to maintain the axle 4 a constant height above the ground and thus ensure that the mines are placed at a constant desired depth. In operation, a mine 26 is fed from a shoot 25 on to a normally open flap 5 of the tool 3. The cylinder 15 is energized to lower the end 32 of the tool into the ground, the push rod 8 following this movement. The engagement of the tool with the ground causes the carriage 1 to move on the rails 21 in the opposite direction to the motion F of the vehicle whereby the tool is stationary relative to the ground. The flap 5 is closed by the ground pressure to introduce the mine 26 into the tool end 32 and the tool continues to penetrate into the ground until the mine has a horizontal attitude (Fig. 6, not shown). The rod 8 locks itself in the lower position, the engagement of the rod end 9 with the mine causing the latter to be armed. As the tool 3 is now withdrawn by the cylinder 15 the mine is restrained by the rod 8 and is ejected from the tool through a flap 6 pivoted at 29 (Fig. 7, not shown). The surface of the ground above the mine is held down by a scraper 12. Finally, the rod 8 is raised by the roller 17 engaging the face 11.
Patent GB-1256600-A (GB)
IPC: B22C7/02
Filed: 1969-10-13
Abstract: 1,256,600. Moulding plastic substances. SOC. DE PARTICIPATIONS KALI-OUEST SOPAKO. 13 Oct., 1969 [1 Aug., 1969], No. 50255/69. Addition to 1,135,255. Heading B5A. The method of producing bladed wheels of synthetic material for use in precision foundry casting as claimed in the parent Specification is modified in that the rim on which the blades are to be moulded has one or more holes at each position of a blade so that when moulding a blade the moulding material penetrates the or each hole to form anchoring lugs therefor.
Patent GB-1257593-A (GB)
IPC: B63B9/06
Filed: 1970-05-28
Abstract: 1,257,593. Building ships. NIPPON KOKAN K.K. 28 May, 1970, No. 25692/70. Heading B7S. A method of constructing a twin hull ship comprises launching the pair of hulls 1, 1<SP>1</SP> temporarily connected together at 4, then separating them, next moving them apart to the required relative positions, and finally reconnecting them by a permanent structure. During this operation the hulls are interconnected by a pair of beams 2 secured to hull 1<SP>1</SP> and guided in members 3 secured to hull 1, winching gear 6 being provided to move the hulls apart. The final alignment is effected by sets of hydraulic jacks (9), Fig. 5 (not shown), which move the beams in members 3.
Patent GB-1258353-A (GB)
IPC: H01J9/227
Filed: 1969-09-25
Abstract: 1,258,353. Luminescent screens. THORN RADIO VALVES & TUBES Ltd. 23 Oct., 1970 [25 Sept., 1969], No. 47335/69. Heading H1D. In the manufacture of a colour television screen by illuminating a photo-resist through a shadow mask, the areas of the screen most remote from the light source receive less light, and this is compensated by providing a second light source at a different colour centre. In Fig. 1 the primary light source 16 illuminates a point 19 via an aperture 13 in the shadow mask 12, and a secondary light source in the form of a mirror illuminates the same point through an adjacent aperture 14. The mirror shown is plane but it may be curved to vary the intensity of illumination over the remote corner. In the illustrated example the primary source 16 is located at the first colour centre which corresponds to the centre of deflection, and the secondary source has a virtual location at the second colour centre, but either or both sources may be located at colour centres of a different order. The light from the source 16 may pass through a correcting lens (not shown) and that reflected from the mirror 20 may pass round the edge of the lens.
Patent GB-1264773-A (GB)
IPC: D06B3/12
Filed: 1970-08-12
Abstract: 1,264,773. Vessel for treating textiles. PAUL WEBER A.G. 12 Aug., 1970 [15 Aug., 1969], No. 38886/70. Heading D1L. Apparatus for the wet treatment of continuous textile materials comprises a container 1 internally divided into compartments by a plurality of concentric intermediate walls 4, 5, 6, 7. A chute 8 extends radially from the highest point of the container into the innermost compartment, the chute acting to divide the other compartments into sectors. The intermediate walls are joined to the chute at its opposite sides in alternate fashion, and the other ends of the walls define spaces 16, 17, 18, 19 whereby neighbouring compartments communicate with each other on alternate sides of the chute. Each compartment contains means, e.g. rollers 21, for guiding the textile; some at least of the rollers may be driven. The rollers are advantageously perforated. References 20 and 22 indicate tension-measuring devices. In operation the web B enters the chute 8 and exits at 23, having passed successively through the compartments. As shown, treating liquid is added at 23 and flows countercurrent to the fabric over wiers 26 formed at the points of communication between compartments, finally leaving at 25. In alternative embodiments; (a) liquid leaves via chute 8 and is pumped round the apparatus; (b) each or some individual compartments have separate inlet and outlets for treatment fluid, which may be a gas; (c) extra liquid inlets, e.g. 28 may be provided. A squeeze roller arrangement may be replaced or be present additionally to the tension measuring devices in the spaces 16-19.
Patent GB-1266148-A (GB)
IPC: F17C5/02
Filed: 1968-05-06
Abstract: 1,266,148. Compressed gas storage container. NITROCHILL Ltd. 1 May, 1969 [6 May, 1968 (2)], Nos. 29659/71 and 30456/71. Divided out of 1,266,147. Heading F4P. The subject-matter of this Specification is substantially the same as that relating to Fig. 6 of Specification 1,266,147 but the claims relate to a gas cylinder construction.
Patent GB-1296116-A (GB)
IPC: H03B5/24
Filed: 1970-05-15
Abstract: 1296116 Frequency shift transistor oscillators RCA CORPORATION 15 May 1970 [23 May 1969] 23667/70 Headings H3R and H3T In an oscillator the oscillatory frequency of which may be switched to a second value by connecting means, e.g. a resistor, between two points in the circuit, switching transients are eliminated by ensuring that the two points are at the same D.C. potential. As described the oscillator is a Wien Bridge type, comprising an amplifier 25 and a frequency determining RC circuit 35a, 35b. The frequency is switched by switching in resistors 86, 88 across resistors 96, 98 by means of transistor switches 30, 20 and the D.C. potential at point t is made earth, i.e. the same as point q by switchably selecting the value of the resistor chain 99, 98, 47 connected between + V1 and - V.
Patent GB-1304271-A (GB)
IPC: B61B13/04
Filed: 1970-02-21
Abstract: 1304271 Suspended vehicles DEEWELD Ltd 21 Feb 1970 8461/70 Heading B7L An overhead trolley 10 comprises a pair of relatively movable, hook-shaped members 11, 12 having rollers 16 at their hooked parts for engaging the flanges 21 of an overhead rail 22, the member 11 being formed by two plates interconnected by rivets 14, and the member 12 being a plate located between and pivotally attached to the two plates of member 11 by a pivot 13 and having a load-carrying formation in the form of a ring 17. The rollers 16 are mounted on bars 15 on the hooked parts. The members alternatively may be interconnected by pin-and-slot means and may be held in position when the trolley is in use by a pin 20 engaging holes 19 in the members.
Patent GB-1306780-A (GB)
Title: Automatic level control amplifying devices
IPC: H03G3/20
Filed: 1971-10-20
Abstract: 1306780 Automatic gain control MEL EQUIPMENT CO Ltd 20 Oct 1971 48784/71 Headings H3Q and H3R In an automatic level control arrangement, more particularly intended for a transmitter, the signal is applied via terminal 1 to a pulse amplitude modulator 2 and thence to an integrator 4 which restores the signal to its original waveform. From this it is fed via amplifier 5 to output terminal 6. The modulating pulses are derived from pulse source 11, via pulse stretcher 3. The output of amplifier 5 is also fed to a peak level detector, the output from which is fed via integrator 9, e.g. a low pass filter to control pulse stretcher 3. If the signal output from amplifier 5 is below a predetermined level, peak detector 8 produces no output and pulse stretcher 3 stretches the pulses to a maximum amount; as an output is obtained from peak detector 8 and increases, the pulse stretcher is controlled to produce corresponding narrower pulses, so that the signal output, as smoothed by integrator 4 and amplified by amplifier 5, is maintained substantially constant.
Patent GB-1311530-A (GB)
Title: Safes
IPC: E05G1/00
Filed: 1970-09-04
Abstract: 1311530 Boxes and cases SECURE SAFES (COVENTRY) Ltd 13 Aug 1971 [4 Sept 1970] 42348/70 Heading B8P [Also in Divisions E1-E2] A safe, preferably located in a floor 16, consists of a lining 10 having two doors 13, 14, a cover 15 and a container 30 therein consisting of a series of canisters 31 interconnected together for withdrawal as a common unit. The containers may be made of aluminium and the screw-threaded cover of a lowermost canister may be connected by rivets, bolts, screws or adhesive to the base of an uppermost canister having a handle 35 as shown. Again, the lowermost canister may have a screw-threaded spindle whereby a column of canisters may be mounted thereon and clamped in position with the interposition of sealing gaskets by a nut engaging a top cover-plate, see Fig. 3 (not shown). In a  further modification, wherein the canisters may  be made of plastics or metal, they are mounted in superimposed relationship on a platform carried by a wire cradle, see Fig. 5 (not shown). For door and locking details the Specification should be referred to.
Patent GB-1312057-A (GB)
Title: Polyolefine films
IPC: B29C55/12
Filed: 1970-04-21
Abstract: 1312057 Polypropylene films IMPERIAL CHEMICAL INDUSTRIES Ltd 20 April 1971 [21 April 1970] 18993/70 Heading B5B A process for the production, without heat setting, of a biaxially oriented film of a crystalline propylene polymer having a shrinkage in the longitudinal and transverse directions of not more than 5% when maintained at 120‹ C. for one minute and not more than 7% when maintained at 130‹ C. for one minute, comprises heating a film of the crystalline propylene polymer, after extrusion, and, optionally, cooling, to a temperature within the range of 25‹ to 5‹ C. below the crystalline melting point of the propylene polymer and stretching the film simultaneously at draw ratios of at least 5 : 1 in substantially perpendicular directions at that temperature, the maximum temperature to which the film is heated thus being the stretching temperature. The film may be made by a tubular process and stretched at a temperature below 165‹ C., especially at a temperature of about 155‹ C. Suitably, the draw ratios do not exceed 8 : 1, and draw ratios of 7 : 1 are preferred. The film may be stretched at substantially equal draw ratios in each direction. Film so made may have a shrinkage in the longitudinal and transverse directions not exceeding 3% when maintained at 120‹ C. for one minute and from 4 to 5% when maintained at 130‹ C. for one minute. Such films are useful as packaging material. Examples are given.
Patent GB-1316103-A (GB)
Title: Electrical switches
IPC: F02P7/02
Filed: 1969-08-12
Abstract: 1316103 Lamp-holders JOSEPH LUCAS (INDUSTRIES) Ltd 9 July 1970 [12 Aug 1969] 40186/69 Heading H2E A switch, having a body 11, receives a detachable lamp holder 15 in an aperture 20 in its rear face 12, one contact 17 of the bulb being electrically connected to one terminal 14 of the switch via an external resilient, electrically conductive member, such as wire 21, and the other bulb contact (not shown) being electrically in contact with a resilient electrically conductive member 18 which may be riveted to the bulb holder. The switch may have a lens on its front face and may be wired to the bulb such that when the switch is on the bulb is illuminated and so indicates through the lens. The bulb may be of the screw-cap variety and the holder and switch body of moulded synthetic resin. The switch may be of the toggle or rocker operated type, the lens being in the body of the switch or in the rocker. A reference is made to Specification 1,212,841.
Patent GB-1318740-A (GB)
Title: Coated food products
IPC: A23L1/164
Filed: 1970-09-22
Abstract: 1318740 Coating cereal products NATIONAL BISCUIT CO 22 Sept 1970 45087/70 Headings A2A and A2B A ready-to-eat cereal, e.g. corn, rice, wheat in puffed, flaked, shredded or extruded form, is coated with an ice cream product in dried or powdered form which is adhered to the cereal by an intermediate coating of an edible binder which may be a sugar syrup, a natural or synthetic gum, a mucilaginous plant extract, starch, dextrin, or an emulsifying agent such as a mono- or di-glyceride &c. Apparatus for performing the coating process comprises a heat exchanger in which a sugar solution is heated rapidly to 240‹F. and then cooled rapidly to 170-190‹F., and a horizontally mounted rotary drum to one end of which the cooled sugar solution and the cereal are supplied. At about one third of the length of the drum from its discharge end the dried ice cream product, which may be flavoured and may contain an anti-caking agent such as calcium silicate, is introduced by a blower. The coated cereal leaving the drum passes to a dryer maintained at a temperature of 200‹F.
Patent GB-1324725-A (GB)
Title: Hydropholic poromeric foam method of making and articles made thfrom
IPC: C08J9/30
Filed: 1971-05-28
Abstract: 1324725 Artificial leather GENERAL TIRE & RUBBER CO 28 May 1971 [1 June 1970] 18160/71 Heading DIP [Also in Division C3] A non-woven fibrous mat is saturated with a cured frothed mixture of a blend comprising 100 parts by weight of a plastisol grade vinyl chloride resin, which may contain up to 50 parts by weight extender resins, between 50 to 100 parts by weight of at least one compatible liquid plasticizer, a stabilizer for the vinyl chloride resin and 10 to 16 parts by weight of an emulsifier comprising between 36-46 weight percent of a saturated or unsaturated fatty acid having from 12-24 carbon atoms or mixtures thereof; between 27-37 weight percent of an alkali salt of a saturated or unsaturated fatty acid having from 12-24 carbon atoms or mixtures thereof; between 6-16 wt. percent of potassium acid phthalate, disodium phthalate, or sodium acid phthalate; between 4-8 weight percent water; between 4-6 weight percent of a saturated aliphatic glycol; between 2-4 weight percent of a low melocular weight hydrocarbon-type oil; and between 1.5-2.5 weight percent of silicic acid; and, (II) between 7 to 19 parts by weight of a liquid polyurethane precursor prepared from the reaction between a polyol and a polyisocyanate.  The stabilizer may be an organic or inorganic lead salt, a barium-cadmium-zinc compound, an organotin compound, epoxydized soybean oil, or a chelating agent. The plasticizer may be a di(aliphatic)phthalate, sebacate or adipate, epoxylized soybean oil, aromtaic petroleum hydrocarbons, or a themoplastic phenolformaldehyde resin. The polyvinyl chloride resin may be diluted with an extender resin, e.g. polyvinyl acetate, polyvinyl alcohol, polyvinylidene chloride, a copolymer of vinyl chloride and vinyl acetate or vinylidene chloride, or a polyvinyl chloride-polybutadiene blend. Flame retardants such as antimony trioxide, tris (2, 3 dibromopropyl) phosphate, tetrabromophthalic anhydride, tetrabromobisphenol and perchloropentacyclodecane (65% chlorine) may also be added in amounts ranging from 1-20 parts per 100 parts by weight of resin. In examples (1-8) the mat consisted of a nylon fibrous mat which may be needled, and in example 9 the needled mats consisted of rayon, a nylon/rayon mixture and acrylic material.
Patent GB-1326597-A (GB)
Title: Production of selenium compounds
IPC: G03C7/42
Filed: 1970-09-30
Abstract: 1326597 Cyclohexanoneselenosemicarbazones ILFORD Ltd 14 Sept 1971 [30 Sept 1970] 46528/70 Heading C2C Cyclohexanoneselenosemicarbazones of the general formula in which A represents a cyclohexylidine group, optionally substituted by a methyl group and R is a hydrogen atom, a C 1 -C 6  alkyl group or an aralkyl group, by reacting an alkali metal selenocyanate with a hydrazine of formula NH 2 -NHR or with a cyclohexane in the presence of a water-containing inert organic solvent medium, the initial pH of the reaction mixture being below 5À0 at 25 C., and separating the cyclohexanoneselenosemicarbazone formed. The hydrazine may be used in its free form, as its hydrate or as an acid addition salt and an acid or base may be added to produce the required pH value. Examples describe the preparation of cyclohexanoneselenosemicarbazone; 3-methylcyclohexanoneselenosemicarbazone; and cyclohexanone-2-methylselenosemicarbazone.
Patent GB-1327186-A (GB)
Title: Cables
IPC: B29C48/32
Filed: 1971-12-16
Abstract: 1327186 Extrusion coating with foamed material STANDARD TELEPHONES & CABLES Ltd 16 Dec 1971 58423/71 Heading B5A [Also in Divisions C3 and H1] A pair of aluminium or copper electrical conductors 3 e.g. for a telephone cable, are sheathed with cellular plastics insulant during passage of each conductor through a separate one of parallel extrusion die bores 2, the cellular plastics from each of the die bores expanding to become fused together at a junction at which the insulant is subsequently readily separable, for joining or terminating purposes. The cellular plastics may comprise polyethylene, expanded by azodicarbamide blowing agent incorporated prior to extrusion, or by the incorporation of a gas injected during extrusion, and may be applied to either the bare conductors, or to the conductors pre-coated with unexpanded polyethylene.
Patent GB-1333208-A (GB)
Title: Liquid filter units
IPC: B01D27/07
Filed: 1970-04-25
Abstract: 1333208 Liquid filter CAV Ltd 19 April 1971 [25 April 1970] 19992/70 Heading B1D An integral housing filter comprises a cylindrical housing 10 enclosing an annular pleated paper filter element 16 around a central tube 15, the housing being closed by a cylindrical plug 17 fitting into the tube 15 and an annular plate 19 engaging a flange 18 of the plug and sealed to the housing at its outer edge. The plate 19 is turned up at its inner edge to receive a sealing ring 20. Plug 17 has inlet and outlet apertures 24, 25 and a threaded hole 21 whereby the filter is secured by bolt 22 to support 23. The filter has a lower sump which could have a drain plug.
Patent GB-1337252-A (GB)
Title: Method and apparatus for plugging and drilling a pipe under  pressure and particularly for the connection of a service pipe  to a mains pipe
IPC: F16L41/04
Filed: 1969-11-12
Abstract: 1337252 Pipe drilling WARM AIR VENTILATING & ENG Ltd 11 Nov 1970 [12 Nov 1969] 55418/69 Heading B3C [Also in Division F2]  A drill comprises a cutter 23, for trepanning out a plug from the wall of a pipe 10 and retaining the plug within the cutter after drilling, a spindle 22, formed at 24 to receive a wrench (not shown), and an assembly 25-30 for exerting axial pressure on the cutter.
Patent GB-1340278-A (GB)
Title: Valves
IPC: F16K1/22
Filed: 1971-08-06
Abstract: 1340278 Valves TRENT VALVE CO Ltd 4 Aug 1972 [6 Aug 1971] 37095/71 Addition to 1237461 Heading F2V In a butterfly valve wherein, in opening the valve, the valve closure disc 4 is movable axial] y relative to its seat 1<SP>11</SP> prior to being rotated about an axis parallel to the actuating spindle 3, the disc has formed on its underface two lugs 4<SP>1</SP> whose faces are at an acute angle relative to the axis of shaft 3. Secured to the sloping lugs are rectangular plates 6 which engage correspondingly sloping grooves 6<SP>1</SP> formed in the shaft 3. The shaft is coupled to the actuating wheel 29 by a mechanism 16 which upon initial rotation of wheel 29 permits purely axial displacement of shaft 3 and, hence, displacement of the disc 4 away from its seat 1<SP>11</SP>, such displacement being by way of the sliding cam arrangement 6, 6<SP>1</SP>. Subsequent to a predetermined displacement of the valve disc along the seat axis, the sliding cam arrangement acts to transmit rotational motion of the spindle 3 to the disc to so move the valve disc to its fully open position.
Patent GB-1342473-A (GB)
Title: Infants toy or plaything
IPC: A63H5/00
Filed: 1970-04-23
Abstract: 1342473 Toys, teething devices HILARY PAGE "SENSIBLE" TOYS Ltd 23 April 1971 [23 April 1970] 19554/70 Heading A5R and A6S [Also in Division G5] A child's toy or teething device has three stems radiating from a central part 10b which is covered top and bottom by dish-like members assembled to the stems without the use of adhesive, each stem having a wind-sensitive sound producing device, e.g. a reed 13, and a mouthpiece 11a at its outer end, each reed 13 being held against a respective seating 11b by a part, e.g. a forked finger, 15 projecting from an adjacent stem. The dish-like members may have air holes 17.