baber/WOPTO huggingface dataset:
Patent GB-1450162-A (GB)
Title: Sliding clasp fasteners and method of making the same
IPC: D04B21/00
Filed: 1973-08-31
Abstract: 1450162 Sliding clasp fasteners YOSHIDA KOGYO KK 31 Aug 1973 [1 Sept 1972] 41137/73 Heading E2S A sliding clasp fastener comprises a pair of oppositely-disposed stringer tapes T 1 , T 2  each carrying along their respective inner longitudinal edges a row of interengageable fastener elements E and a slider S arranged to move along the inner longitudinal edges to open and close the fastener, each of the stringer tapes consisting of a first group of threads 12 which are made of a textile, or non-soluble, material and a second group of threads 13 which are made of thermoplastic material, the second group of threads being present at least at a portion of the tape corresponding to a tape end to be cut and being melted, whereby the threads of said first group are held against fraying at the cut end of the tape entirely by thermoplastics material from said second group of threads 13 fused to, and forming a unitary bond with, said first group of threads 12 across the full tape width and thickeners S. As shown in Fig. 1 a row of coiled fastener elements E, is stitched at 11, to each of the tapes T 1 , T 2  which are joined by an end stop P, the warp threads 12 being made, e.g. of cotton, and the weft threads T3, at least at the end portions 14 of the tapes, being formed of a thermoplastic resin such as polyester. An apparatus Figs. 9, 10, not shown, for cutting intermittently fed, continuous fastener tapes and melting the thermoplastic threads (13) at predetermined intervals to form tapes of the required length with reinforced tape ends comprises a forming die (16) and a cooperating, vertically-reciprocable, ultrasonic horn (17) having a cutting blade (17b). In a modification, Fig. 3 not shown, the weft threads (13) are melted on one side only of the tapes. Fig. 5 shows a warp-knitted stringer tape consisting of wale-forming threads 18, tricot stitches 19, and laid-in lapping threads 20, the latter alone being made of thermoplastic material. The reinforcement (14) may extend along an element-free gap (21), Fig. 6 not shown.
Patent GB-1111305-A (GB)
Title: Improvements in or relating to polyamide films
IPC: B29C71/00
Filed: 1966-09-14
Abstract: 1,111,305. Biaxially stretched polyamide films. NIPPON RAYON KABUSHIKI KAISHA. 14 Sept., 1966 [15 Sept., 1965], No. 41144/66. Addition to 1,110,623. Heading B5B. The process of the parent, wherein a polyamide film is drawn simultaneously in the longitudinal and transverse directions at a draw speed of 6000-100,000%/min. at a ratio of longitudinal to transverse draw speeds of 2 : 1-0À5 : 1, at a draw ratio of 16 : 1-4 : 1 and at a temp. from 70‹ up to 35‹ C. below the film m.p., but below 180‹ C., is modified in that the film, before being drawn, is treated with water, preferably so as to absorb at least 2%, and is then prehated to a temp. above the drawing temperature, e.g. below 200‹ C., but 10- 50‹ C. above the drawing temp. " Draw ratio ", " draw speed " and the polymers used are as specified in the parent. The drawn film may be heat-set and/or heat-shrunk, also as described in the parent.
Patent GB-999318-A (GB)
Title: Improvements relating to gas tight joints
Inventor: BANCE UDHO RAM
IPC: F16L23/22
Filed: 1962-10-31
Abstract: 999,318. Pipe joints. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 30, 1963 [Oct. 31, 1962], No. 41214/62. Heading F2G. A gas-tight joint between two bodies in a low pressure system, in which a small quantity of liquid tends to flow across the joint, comprises two co-operating surfaces 3, 4 formed respectively one on each body, a gasket 6 extending between the co-operating surfaces and means, e.g. bolts 5, for clamping the co-operating surfaces together, the portions of the surfaces on the side of the gasket within the low pressure system being spaced apart by a small gap L of such a width that the liquid flowing across the gap does not extend continuously between said portions of the surfaces. The width d of the gap L may be calculated from the formula where T = the surface tension of the liquid # = the angle of contact of the liquid with the surfaces, and p =the density of the liquid. The surfaces may be at the end of two tubes 1, 2 in a low pressure system which includes a chamber 11 to be evacuated by means of a diffusion pump 12. Vapour from the diffusion pump may exist in the tubes and may be condensed on their walls by the cooling pipes 13 of the diffusion pump or by other cooling means. This liquid will tend to flow down towards the pamp and in so doing some of it will cross the joint between the tubes 1, 2, but if the minimum width L of the gap is chosen as described, liquid will not flow continuously over the full width of the gap and form a continuous film of oil that would otherwise trap the gas and cause undesirable pressure fluctuations.
Patent GB-856546-A (GB)
Title: Improvements in and relating to centrifugal distributors more especially for distributing manure
IPC: A01C17/00
Filed: 1958-12-22
Abstract: 856,546. Manure distributers. DREYER, L., DREYER, E., EDLER, L., RODE, J., DREYER, H., and DREYER, K., [trading as AMAZONENWERKE H. DREYER]. Dec. 22, 1958 [Dec. 23, 1957 ; Jan. 23, 1958], No. 41310/58. Class 6(1). A manure distributer is provided with two centrifugal discs 4 disposed side by side the discs being partially aurrounded by concentric guide screens 10 each screen having its inner end directed approximately towards the axial centre of the other disc. Agitator devices 9 of corkscrew shape being arranged to rotate in a hopper 1 in the same direction of rotation as each disc. The hopper is of oval shape the lower portion being divided by a partition 6 into two sections feeding material respectively through outlets 7 to the discs.
Patent GB-1479325-A (GB)
Title: Measurement of level of paramagnetic liquids
IPC: G01F23/26
Filed: 1974-09-24
Abstract: 1479325 Measuring liquid level electrically COMMISSARIAT A L'ENERGIE ATOMIQUE 24 Sept 1974 [5 Oct 1973 29 Nov 1973] 41529/74 Heading G1N A transformer type liquid level measuring device includes a resistor connected across the secondary winding, the resistance valve of the resistor and the frequency of the A.C. supplied to the primary winding being such as to compensate for temperature changes in the liquid being monitored. A cylindrical support provided with longitudinal slots or an elongate former of cruciform cross-section, Fig. 1 (not shown), is wound in one layer with primary and secondary windings and positioned in a stainless steel glove finger which dips into the liquid sodium whose level is to be measured. At a fixed temperature and frequency of the A.C. supply the voltage developed across the secondary decreases linearly as the depth of liquid increases. However if the temperature of the sodium increases there is an increase in voltage induced in the secondary and to counteract this the resistor R is connected across the secondary winding whereby the increase in voltage is com-  pensated by the increase in voltage drop across the increased internal resistance of the probe. The value of the resistor is determined from the Formula R = <SP>e#R</SP>i/<SP>#e</SP>-Ri where Ri is the internal resistance of the probe. However this Formula is only valid for a particular frequency of the A.C. supply and the following procedure is adopted to determine both the value of R and frequency. First curves 18 to 28, Fig. 5 are plotted experimentally showing the voltage e across the secondary winding as a function of liquid level N with the pairs of lines 18, 20; 22, 24; 26, 28 being obtained at supply frequencies of 3000 c/s, 3500 c/s and 4,000 c/s respectively and lines 18, 22, 26 at temperature of 150C and 20, 24, 28 at 550C. Then the internal resistance Ri of the secondary winding is measured at various depths N to give the lines 32, 30 at temperatures of 550C and 150C, Fig. 6. From Figs. 5, 6 the values of <SP>#e</SP> and <SP>#</SP>Ri can be obtained at a particular frequency for when the probe is not immersed in the liquid and the value of R obtained from the Formula. Using the three sets of lines of Fig. 5 the curve 36 of Fig. 6 of R versus frequency can be plotted. The same procedure is then adopted to obtain the curve 38 for a fully immersed probe. The point of intersection gives the optimum frequency of the supply and the value of the resistor R.
Patent GB-1021600-A (GB)
Title: Method of making a refractory mould for metal casting
IPC: B22C1/20
Filed: 1964-10-12
Abstract: 1,021,600. Moulding processes. F. S. RAMBLER. Jan. 7, 1965 [Oct. 12, 1964], No. 41616/64. Heading B3F. A method of making a foundry mould comprises producing a moulding paste or slurry by mixing together a comminuted refractory material, an organic silicate which yields silica and an alcohol on hydrolysis, a gelling accelerator and at least sufficient water to hydrolize the silicate, forming it around a pattern and allowing it to gel in contact therewith, removing the mould from the pattern, painting all surfaces of the mould which have not contacted the pattern with beat-resistant material so as to prevent or retard any substantial escape or ignition of alcohol therefrom, and igniting the alcohol escaping from all surfaces of the mould which have contacted the pattern. The heatresistant material may be sodium or potassium silicate, a dispersion of bentonite in water, with or without potassium silicate added thereto, or asbestos powder, powdered firebrick, powdered zircon, alumina, sillimanite, silica, mica, powdered mineral, metal, clay, dispersed in water and/or potassium or sodium silicate or other carrier, or mixtures of the foregoing. The pattern contacting surface of the mould may be coated with a combustible material, e.g. petroleum jelly in paraffin, or wax in carbon tetrachloride, to promote ignition of the alcohol.
Patent GB-1056445-A (GB)
Title: Articles made from thermoplastics
IPC: C08G2/00
Filed: 1963-10-23
Abstract: Camera parts and accessories and other photographic equipment suitable for use in contact with or close proximity to photographic film or other light-sensitive media are wholly or partly made from an oxymethylene polymer the molecular structure of which contains a proportion of carbon-carbon linkages distributed along the oxymethylene chain.  The oxymethylene polymer preferably contains 0.5 to 25 mole per cent of oxyethylene groups. The preferred copolymers are those from trioxane and dioxolane or ethylene oxide and may contain stabilizers, e.g. an alkylene bisphenol in conjunction with a nitrogen containing compound.
Patent GB-1402267-A (GB)
Title: Services socket outlet device
IPC: H02G3/18
Filed: 1971-09-09
Abstract: 1402267 Two-part couplings D M M BROWN 11 Sept 1972 [9 Sept 1971] 42043/71 Heading H2E An electrical service outlet socket 12 is mounted on the underside of a hinged lid 20 over a floor cavity, in which it is flexibly connected to a terminal block 17. A latch 21, 21a can lock the lid into a raised position for use, with the socket then projecting in sloping attitude, or it can release the lid assembly into the floor. The lis and surrounding cover-plate 14b may be adapted to carry portions of carpet. The floor cavity may contain a box 19 from which the cover assembly is detachable, permitting its subsequent re-connection to a box 19 in another location, if desired. Service outlet fittings for telephone, water, air or gas connections may similarly be accommodated in the housing, in alternative embodiments (not shown).
Patent GB-1116265-A (GB)
Title: Apparatus for moving bulk liquids from a storage receptacle to a tank by creating a vacuum in the tank
Inventor: SONNBERG JOACHIM
IPC: B60P3/22
Filed: 1966-09-21
Abstract: 1,116,265. Raising liquids by vacuum. DIESSEL G.m.b.H. & CO. Sept.21, 1966, No.42057/66. Addition to 1, 021, 680. Heading F1R. In apparatus for raising liquids by vacuum according to the parent Specification the non- return valve is replaced by a three-branch cock 13 in the pipe 10 at the level attained by the liquid in the chamber 4 when a lower float actuated valve 6a closes the outlet to the pipe 9 leading from the chamber 4 to the cock 13, the third branch of which is connected to pipe 8 leading to the top of the chamber 4.
Patent GB-1014817-A (GB)
Title: A device for punching a tape or reading a punched tape
IPC: G06K13/30
Filed: 1962-11-09
Abstract: 1,014,817. Selective punching machines. OLYMPIA WERKE A.G. Nov. 9, 1962 [Nov. 28, 1961], No. 42412/62. Heading B4B. In a machine for punching a tape and having mechanism for conveying the punched tape, a spring-biased pivotally-mounted bell-crank lever 43 is driven through a cam 40 and follower roller 41 from the main shaft 17 and comprises at the end of its non-driven arm 430 a feed roller 46 and a pressure roller 47 between which the tape 8 is guided, the roller 46 being equipped with a ratchet 51 and a freewheel device 51a in such manner that on movement of the arm 430 in the direction in which the tape is conveyed, the ratchet locks whereas it freewheels in the return direction. When the lever 43 is in its normal position a ratchet wheel 50c of the roller 46 coacts with a pawl 50 and a stop 50a. The pitch of the teeth of the ratchets 50c and 51, which may be known sawtooth ratchets, corresponds to the hole spacing of the tape. The means for setting, actuating and returning the punches are the same as described in Specification 1,012,032.
Patent GB-1148610-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
IPC: G21C3/18
Filed: 1966-09-26
Abstract: 1,148,610. Fuel elements. GULF GENERAL ATOMIC Inc. 26 Sept., 1966 [30 Sept., 1965], No. 42830/66. Heading G6C. A fuel element for use in a pulsing nuclear reactor comprises a solid elongated cylindrical fuel body housed in a sealed cylindrical container, the relative diameters of the fuel body and the container being such that a thermal insulating gap is maintained between them through the operating range of temperatures of the fuel element, spacing means being disposed between the lateral surface of the fuel body and the container to maintain the thermal insulating gap therebetween and means being disposed between each end of the fuel body and the corresponding end of the container to provide thermal insulation therebetween. The insulating gap may be filled with a gas such as nitrogen, or may be evacuated. The container may be constructed of stainless steel or a nickel based alloy, and the fuel body may be a homogeneous mixture of zirconium hydride and uranium (enriched to 20% by weight in U-235). The fuel body preferably contains approximately 8¢% by weight of the enriched uranium. To facilitate hydriding, a hole may be drilled through the centre of the fuel body, a zirconium rod being inserted into the hole after the hydriding is completed. Graphite cylinders are provided at either end of the fuel body and act as reflectors. At least one of the cylinders is spaced from the adjacent end of the container to allow axial expansion of the fuel body. The end fittings of the container each have a vaned guide structure for supporting the fuel element in a reactor core. The spacing means may consist of dimples formed in the container, elongated ribs extending axially and formed in the container, a wound wire of tungsten, molybdenum or graphite surrounding the fuel body, or a porous ceramic filler or coating, e.g. aluminium oxide, sprayed on the interior of the container. The insulating gap serves to prevent film boiling on the surface of the fuel element container at high temperatures such as are encountered during or immediately after a high reactivity pulse. Such film boiling, although only localized, can result in overheating of the container and permanent deformation can result from the thermal stresses produced in the container or from the fact that the internal pressures exerted on the container may produce forces exceeding the yield point of the container when the latter is heated to sufficiently high temperatures.
Patent GB-1277492-A (GB)
Title: Electrical machine having permanent magnet excitation
IPC: H02K23/04
Filed: 1969-08-28
Abstract: 1277492 Core constructions SIEMENS AG 28 Aug 1969 [28 Aug 1968] 42967/69 Heading H2A. The stator or rotor poles of an electrical machine comprise ceramic permanent magnet blocks 4, 5 clamped between wedge-shaped pole cores 3 and clamping pieces 6, 7, the pole cores being spaced by air gaps from the stator or rotor yoke. Fig. 2 shows a main stator pole in which a number of axially-adjacent ceramic permanent magnets 4, 5 are clamped against each of two opposite faces of a common wedge-shaped pole core 3 by respective common laminated clamping pieces 6, 7. The clamping pieces may be formed integrally with a laminated or non- laminated yoke, or, as in Fig. 2, may be formed separately from the yoke, being held together by non-magnetic end connectors (9, Fig. 2, not shown). The pole core 3 is secured to the yoke by non-magnetic bolts 8. The main air gap is adjusted by shims disposed either between the magnets and core 3 or clamping pieces 6, 7, or between the latter and the yoke. The main flux # A  is adjusted by varying a leakage path between a magnetic bolt, aligned with bolts 8, and the pole core 3. Wound commutating poles 2 are provided. In another embodiment (Fig. 4, not shown) the poles are provided on the rotor and the permanent magnets (12, 13) are held between adjacent polepieces, one of each pair of adjacent polepieces being a detachable wedge-shaped pole core (14) similar to 3 in Fig. 1, and the other being a wedge-shaped projection integral with the rotor yoke.
Patent GB-1192103-A (GB)
Title: Improvements relating to Diffuser Assemblies
Inventor: JENNINGS IRVING CALLENDER
IPC: B29C39/00
Filed: 1969-08-29
Abstract: 1,192,103. Jet pumps. I. C. JENNINGS. March 12, 1968 [March 13, 1967], No. 43190/69. Divided out of 1, 192, 102. Heading F1E. The subject-matter of this Specification is the same as that of the parent Specification but the claims are directed to the diffuser construction.
Patent GB-1432375-A (GB)
Title: Plugs for use in tube-drawing
IPC: B21C3/16
Filed: 1972-09-19
Abstract: 1432375 Drawing STD SERVICES Ltd 11 Sept 1973 [19 Sept 1972] 43319/72 Heading B3P A tube drawing plug 10 is formed mainly or wholly from an oxide, carbide, nitride or boride of a metal or semi-conductor such as silicon and is compressively stressed so as to counteract the tensile stress generated during drawing. In one embodiment, the ceramic plug 10 is positioned between steel abutments 14, 15 which are interconnected by a screw thread 18 on a stem 17, extending from the abutment 14 and passing through the plug 10, and a coacting screw thread 19 in a bore of the abutment 15. A projection 16 on the abutment 14 and flats 20 on the abutment 15 enable the abutments 14, 15 to be turned to apply a compressive stress to the plug 10. The abutment 15 may be screwed to a plug bar. In another embodiment, a brass or copper spacer (21) (Fig. 2, not shown) having a higher coefficient of expansion than the abutments 14, 15 is positioned between the plug 10 and the abutment 15 to prevent relaxation of the compressive stress on the plug 10 in use.
Patent GB-1381196-A (GB)
Title: Turf aerating machine
IPC: A01B45/02
Filed: 1972-09-19
Abstract: 1381196 Turf aerating machine SCOTT BONNAR Ltd 19 Sept 1972 [29 Sept 1971] 43359/72 Heading A1B The tines 46 of a turf aerating machine are carried by vertically reciprocated holders 45 which are journalled in eccentrics 44 mounted on a driven shaft 32 and are resiliently urged forward against fabric-reinforced rubber blocks 48 by springs or rubber bands attached to the chassis 10. The tines, while in the ground, are held back as the machine advances, but once clear of the ground are repositioned by the springs or rubber bands, possibly after a camcontrolled delay that prevents the tines skidding over the turf. The shaft 32 is driven from motor 25 by belt 30 and pulley 31 under the control of a belt-tightening clutch 40. The wheels 16 are frictionally driven in the same direction as shaft 32 by rollers 27 carried on a shaft 26, which is driven through sprockets and a chain from the shaft 32. The wheels 16 are pivoted upwardly about a shaft 14 into contact with the rollers and the depth of tine penetration is adjusted by varying the height of the plates in which the shaft 26 is journalled.
Patent GB-1402989-A (GB)
Title: Battery charging systems
IPC: H02P9/30
Filed: 1971-09-17
Abstract: 1402989 Automatic voltage control LUCAS ELECTRICAL CO LTD 12 July 1972 [17 Sept 1971] 43379/71 Heading G3R A semi-conductor voltage regulator, controlling the field winding current in a vehicle generator, is protected from transient effects, by a parallelconnected voltage dependent resistor. As shown, an alternator 11 charges a vehicle battery 14 at a regulated voltage determined by a potential divider 21, 22, Zener diode 23 and transistors 24, 26, 28. The alternator field winding 29 in series with the transistor 28 is connected in parallel with a voltage dependent resistor 34 which remains practically non-conducting during normal operation. Voltage transients, caused by ignition faults or disconnection, cause the resistor 34 to pass sufficient current to limit the current in transistor 28 to a safe value.
Patent GB-1125240-A (GB)
Title: Improvements in or relating to data processing systems
IPC: H04Q3/545
Filed: 1966-09-29
Abstract: 1,125,240. Automatic exchange systems. SIEMENS A.G. 29 Sept., 1966 [30 Sept., 1965], No. 43483/66. Heading H4K. Zone metering codes are obtained by translation of routing digits digit by digit, the first digit being used to address a corresponding compartment in a first step section of a readonly store which compartment may contain the zone metering code or may provide the address of a compartment in a second step section of the store, the so addressed second step compartment providing a digit for comparison with the second routing digit a match with which elicits either a zone metering code or a further address of a compartment in a third step section of the store, no such match causing the store to be examined in subsequent sequentially ordered compartments for comparison of the second routing digit with further digits for which different zone metering codes are given or, and in any event at some time, causing the store to be examined in a compartment for which all residual second routing digits give the same metering code or for which such digits correspond to no such code; the third step section of the store and any subsequent such sections being organized in the same manner as the second section. The readonly store may be a magnetic core store. The steps may involve groups of routing digits rather than taking the digits singly as above. The store may be used to obtain routing digits from dialled routing codes.
Patent GB-908724-A (GB)
Title: Improvements in or relating to conveyor systems
IPC: B65G39/20
Filed: 1959-12-22
Abstract: 908,724. Endless chain conveyers. KING, D. M. Dec. 16, 1960 [Dec. 22, 1959], No. 43528/59. Class 78 (1). Each link of a conveyor chain is provided with rollers 12 supported on a boss element 14 secured within the links by rivets 21. The link is formed as a flattened loop from a single strip of metal and rounded bearing surfaces 17 allow for universal movement between adjacent links. A track 18 has a longitudinal slot 19 to allow the passage of load bars 20 which are attached to the chain at any roller assembly wherein the roller rotates about a normally horizontal axis.