baber/WOPTO huggingface dataset:
Patent GB-1277024-A (GB)
Title: Improvements in or relating to moulds
Inventor: GIBBONS JOHN GILBERT
IPC: B29C51/34
Filed: 1968-08-30
Abstract: 1277024 Matched sheet forming moulds BRITISH PETROLEUM CO Ltd 24 July 1969 [30 Aug 1968] 41538/68 Heading B5A A hollow article having an undercut is deep drawn from a heat softened thermoplastic sheet between co-operating male and female mould halves, the female half being provided with retractable projections which co-operate with recesses in the male half. One of the side walls of each recess of the male mould half is itself formed by a retractable projection which co-operates with the corresponding face of the corresponding projection of the female half. In the preferred embodiment, an egg box having projecting locking tabs (such as that described in Specification 1,257,792) is drawn from a heat softened expanded polystyrene sheet between a female mould half 1, mounted upon a bed 2, and a male mould half 16. One side 3 of the female mould, which side is higher than the others, is provided at a point above the general surface of the mould with slots 5 through which are movable projections 6 forming part of L-shaped levers 7 pivotally mounted upon a rod 8. The projections are moved through and retracted from the slots 5 by means of an actuating plate 10 which is suitably slotted to engage the horizontal arms of the levers and which carries at its upper end a striker plate. An upwardly acting biasing spring 15 urges the plate 10 upwardly to normally withdraw the projections through the slots. The corresponding side of the male mould half is provided with recesses 17 adapted to engage projections 6 of the female mould half. Each recess is provided with a slot 18 on which is located a projection 19 carried by an L-shaped lever 20. The levers are actuated by a recessed spring biased actuating plate 23, the lower end of which is provided with a striker plate 26 located within a recess 25 in the leading face of the male mould half. In operation, the mould halves are closed, the sticker plate 26 and that of the actuating plate 10 are engaged by the opposite mould half and the projections are forwarded into co-operation through their slots. Upon withdrawal of the mould halves after moulding the spring biased actuating plates cause the projections to be withdrawn through the slots facilitating the full opening of the mould and the removal of the moulded article. Reference has been directed by the Comptroller to Specification 1,229,218.
Patent GB-1086025-A (GB)
Title: Improvements in and relating to fasteners
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B5/12
Filed: 1964-10-12
Abstract: 1,086,025. Stud and socket fastenings. F. T. PRODUCTS Ltd. Oct 12, 1965 [Oct. 12, 1964], No. 41542/64. Heading E2B. A fastener for attaching a resilient strip to an apertured support by piercing a hole in the web of the strip has a cylindrical portion providing a cutting edge which cooperates with the edge of an aperture in the support to shear a hole in the web. The fastener has a head 12, a shank 11 with a compressible, outwardly extending middle section of substantially W shape in cross section, the cylindrical portion 15, providing the cutting edge 24 and a tapered nose 13. The resilient strip is retained between the head arms 25, 26 and the resilient side arms 20, 21 of the shank. The fastener may be moulded from synthetic plastics material.
Patent GB-1535162-A (GB)
Title: Stock inlet assembly for a stock straightening machine
IPC: B21D3/04
Filed: 1975-12-23
Abstract: 1535162 Rolling mill guides WYKO EQUIPMENTS Ltd 23 Dec 1975 [26 Sept 1974] 41824/74 Heading B3M An inlet assembly, suitable for guiding elongate stock into a skew rolling straightening machine in which the rolled stock rotates about its axis, includes members which engage the stock and while permitting rotational and axial movement of the stock, damp its lateral movement. The damping is provided by the inertia of the members and by resilient supports, as the members (or at least some of them) move laterally. This prevents flailing of the stock, both to increase operator safety and reduce noise. In one embodiment (Fig. 1) the members constitute upper and lower shoes 13 and 15 supported in a trough 11 through which the stock passes. The stock is initially fed axially by a ram or rollers into the machine, after which the machine draws the stock through the trough. The shoes have rubber inserts 14, 17, and the upper shoes are carried by springs 16 on the lid 12 of the trough, to provide lateral damping. In an alternative arrangement (Fig. 3), a laterally movable slide 21 is carried by the trough, the slide supporting two jaws 24 and 29 which extend across the trough. One jaw 29 is embraced by the two parallel walls 24a, 24b of the other, and the two jaws define an opening 32 of diamond shape for the stock. Pneumatic rams 25 adjust the jaws laterally and may operate as shock absorbers. The jaws can move laterally in unison or individually, and may have braking members 28 acting on them to damp such movement. Concave rollers may be carried by the jaws to engage the stock. In a further embodiment, the slidable jaws may be replaced by curved jaws pivotally mounted at their lower ends. The trough may be dispensed with, (Fig. 5), and a pair of pivoted jaws 71 be carried on a fixed cradle by rubber connectors 68. A series of such jaw assemblies may be arranged in tandem, with one assembly (if desired) being movable along a cradle axially of the stock to provide initial feeding of the stock.
Patent GB-1482077-A (GB)
Title: Probes for ultrasonic waves
IPC: G01N29/22
Filed: 1973-09-07
Abstract: 1482077 Ultrasonic probes VIDEOSON Ltd 23 Aug 1974 [7 Sept 1973] 42087/73 Heading H4J An ultrasonic probe comprises a transducer 5 (Fig. 1) movably mounted in a liquid-filled cell 6 having a window 7 coupling the cell 6 and a test piece 8. A continuously variable beam angle is determined by the angular setting of the transducer 5 within the cell 6. An attenuating medium within the cell 6 attenuates reflected waves. The transducer 5 is mounted on an arm 1 pivotal about a central point D of the window 7. Rollers 12, attached to the arm 1, roll in an arcuate groove 16 in a plate 2 while a further roller 17 rolls in a groove 18 in a guide 11. A link 3, pivoted at C, is pivoted at B to a second link 4 having attached thereto a pointer 9, external to the cell 6. When arm 1 is swung around the point D the pointer 9 moves over an arcuate scale to show beam angles between 35 and 75 degrees. A coaxial feeder 13 and terminal 14 are provided. A beam 19 from the cell 6 is refracted to form a beam 20 in the form of shear waves in the test piece. A reflected beam 21 is attenuated by a medium 15. This comprises a first array of bristles (22) Fig. 2 (not shown) extending down the left side wall of the cell 6 and a second array of bristles (23) attached near the top wall of the cell 6 and divergent in the downward direction. Animal bristles may be used. The cell 6 is slightly overfilled with water containing ethylene glycol, so that the window 7 is bowed outwardly. It is formed of a rubber membrane and to reduce wear on its surface it is provided with hardened steel shoes (not shown). Intended test materials include steel and aluminium.
Patent GB-985924-A (GB)
Title: Teaching device
IPC: G09B7/04
Filed: 1961-11-24
Abstract: 985, 924. Educational apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 24, 1961 [Dec. 12, 1960], No. 42110/61. Heading G5G. An electrically-operated teaching device comprises a memory store 1 containing a set of problems and answers, a reader device 1A for reading the problems and answers one by one, an output display device 4 for displaying a problem, a device such as a keyboard 9 or a handwriting character analyser upon which an attempted answer to the problem can be set up, means for comparing the correct answer to the problem with the attempted answer and means to indicate whether the attempted answer is correct. In the particular embodiment described which is for teaching arithmetic, the store 1 comprises an endless perforated tape which can be driven to move through cycles so that the presentation of all the problems is repeated during each cycle. Operation of the device is initiated by depression of a key 12 operating through a "control logic" 15. The problem and answer read at 1A pass via a code converter 2 to a storage 3 comprising a problem matrix 3A and an answer matrix 3B. The information in the problem matrix 3A is conveyed by a cable 27 to a display unit 4 comprising lights 5A. . . 5K. At the same time a prompter timer 13 is turned on, and if an attempted answer has not been entered in the device at the end of an allotted time, the timer 13 delivers a signal to the unit 4 to display the correct answer obtained from matrix 3B for a limited time, causes a "time-up" light 7 to be lit, and a "time-up" counter 17 to be operated. An attempted answer is entered in the device by writing and a character recognition apparatus or, as shown, by a keyboard 9, and an answer key 11 is then depressed. Through the control logic 15, the tape is now advanced to present the next problem and the timer 13 is turned off. At the same time the attempted answer is entered into the matrices 3B and compared with the right answer. If a correct answer has been given, a correct-answer light 6 is lit and a hole is punched in a channel of the tape. The hole is used to cause that problem to be skipped in following cycles. When an incorrect answer is entered, a "wrong" light 8 is lit and a "wrong" counter 16 operated. The tape cycles until every problem on the tape has a skip perforation. A single memory store may be associated with a number of keyboards 9 &c., so that a number of students can attempt answers simultaneously. As shown, the lights 5A. . . 5D show the number 1234, the light 5E shows a minus sign, the lights 5F, 5G show the number 56 and the lights 5H. . . 5K show 1178 i.e. the result of subtracting 56 from 1234.
Patent GB-978461-A (GB)
Title: Coupling means for joining pipes and other conduits
IPC: F16L27/08
Filed: 1963-10-28
Abstract: 978,461. Pipe couplings. WHEATON BRASS WORKS. Oct. 28, 1963 [Nov. 23, 1962], No. 42460/63. Heading F2G. A pipe-coupling means comprises a male member 11 having a diametrically enlarged inner end 13, a female member 12 having a body 18 to receive the enlarged end 13 of the member 11 and a detachable clamp-head 25 to secure the member 11 to the body 18, the enlarged end having forwardly and rearwardly facing conical bearing seats 14 and 16 oblique to the axis of the coupling overlaid by corresponding conical bearing seats 20 and 27 on the member 12 and an annular anti-friction band 32 of fluorocarbon resin engaged between the bearing faces of each pair of seatings. The anti-friction band is of polytetrafluoroethylene in fabric form. The coupling is sealed by an 0-ring 34 in a groove 33. Pipes P and P<SP>1</SP> are attached in alignment to the members 11 and 12 by welding or otherwise as in Fig. 1 or in other embodiments (not shown) the members may be cranked to provide a swinging angular joint.
Patent GB-1449604-A (GB)
Title: Curtain and the like supsension sysems anr ails therefor
IPC: A47H3/02
Filed: 1972-09-13
Abstract: 1449604 Suspending curtains R HAMILTON 12 Sept 1973 [13 Sept 1972 9 May 1973 23 Aug 1973] 42478/72 22071/73 and 39981/73 Heading A4B [Also in Divisions E1-2] A suspension system for curtains or louvre drapes comprises a flexible rail 10 guiding a flat draw belt 11 carrying master gliders A. The belt 11 extends round pulleys 12, 14 and through passages a, b in the rail. Each master glider A has glider parts 16 which run in a third passage c in the rail, and a curved support plate 17, e.g. supporting curtains, is carried by a clamp 19 attached to the belt and slides along flanges f, g of the rail. Free gliders also run in the passage c. In a second embodiment, Fig. 2 (not shown), the passage c is omitted and the passages a, b open laterally into smaller passages receiving the glider parts 16 of the master glider. A G-shaped yoke is attached to the support plate 17 and encircles the rail 10 to simulate a support ring. The glider parts 16 of the master glider attached to the upper run of the belt 11 may be received in the smaller passage associated with the passage b for the lower run of the belt instead of that associated with the upper passage a. The rail may be fixed by brackets to a wall or ceiling. In a third embodiment, Fig. 3 (not shown), similar to that of the second embodiment, a common passage is provided for receiving the glider parts of the master gliders, the glider parts being suitably shaped to fit the common passage. In a fourth embodiment, Figs. 5 to 7 (not shown), the rail is of extruded-plastics material and is of inverted-U form with a central downwardly extending web providing guide flanges for belt runs disposed either side of the web. Adjustable wall or ceiling brackets support the rail. Parts of the system are made of plastics by extrusion or injection moulding or by extrusions or die castings of ductile metal, e.g. aluminium, or mild steel pressings. In a fifth embodiment, Figs. 8 to 14 (not shown), the rail is of hollow cylindrical form with a central vertically extending web and a laterally facing slot along each side bordered by inwardly projecting radially extending guide ribs for locating a master glider clamped to a respective run of the belt and carrying a curtain suspender. The master gliders and free gliders have C-shaped rings embracing the rail to enhance its external appearance. The rail may be longitudinally curved.
Patent GB-1445627-A (GB)
Title: Method of recharging a secondary battery
IPC: H01M2/38
Filed: 1973-10-20
Abstract: 1445627 Recharging storage batteries K KUBO 20 Oct 1975 42487/73 Heading H1B In a method of restoring a storage battery to a charged condition, spent electrolyte is removed from the cells of the battery and is replaced by electrolyte of composition and specific gravity corresponding to the charged condition, the cell electrodes also being restored to the charged condition by passing a reverse current preferably high enough to effect the restoration in the time taken to fill the cells, and the spent electrolyte is also restored to the specific gravity corresponding to the charged condition and stored for re-use. As shown, a suitable battery has emptying ports 7 1  to 7 6  and filling ports 11 1  to 11 6 . The battery may be a leadsulphuric acid accumulator.
Patent GB-948899-A (GB)
Title: Improvements in or relating to transfluxors
IPC: H03K17/82
Filed: 1962-11-13
Abstract: 948,899. Transfluxors. SIEMENS & HALSKE A.G. Nov. 13, 1962 [Nov. 14, 1961; Oct. 17, 1962], No. 42800/62. Heading H3B. The corresponding windings of two or more transfluxors are connected together so as to produce a characteristic which is the sum or difference of the individual characteristics. To obtain different characteristics from the two transfluxors they may have different numbers of turns, different materials, different sizes or resistors may be included in series with the windings. Connecting the output windings in series opposition is stated to compensate for stray effects. Possible applications of the composite device are analogue to digital converting, pulse operation and integral control. The two, or more, transfluxors may be arranged above each other separated by a spacing disc or discs. The output winding may drive a transistor. The output in the output winding may be produced by transformer action and one of the windings common to both transfluxors may act as a bias winding.
Patent GB-1462498-A (GB)
Title: Antimicrobial agents and their use
IPC: C07D233/60
Filed: 1974-10-04
Abstract: 1462498 1-Imidazole-propanols BAYER AG 4 Oct 1974 [5 Oct 1973 23 Nov 1973] 43105/74 Heading C2C [Also in Division A5] Compounds I and their salts in which R<SP>1</SP> is optionally substituted aryl, R<SP>2</SP> is H, alkyl, alkenyl, cycloalkyl, optionally substituted aryl or optionally substituted aralkyl, R<SP>3</SP> is H, alkyl or cycloalkyl with the proviso that R<SP>2</SP> and R<SP>3</SP> are not both H; are prepared by reducing a compound II: optionally with the simultaneous introduction of group R<SP>2</SP> or by subjecting a compound II to a Grignard reaction. Compounds I in which R<SP>1</SP> is phenyl (optionally substituted by Cl, F, di-Cl, or Cl+Me), R<SP>2</SP> is H, Me, Ph (optionally substituted by Cl) or B 3  and R<SP>3</SP> is H or t-Bu are prepared. 1 - Imidazol - 1 - yl - 2 - p - chlorophenoxy - 4,4- dimethyl-pentan-3-one is prepared by (a) bromination of 2-p-chlorophenoxy-4,4-dimethylpentan-3-one followed by reacting the product obtained with imidazole or (b) reacting 1-pchlorophenoxy-3,3-dimethyl-butan-2-one with formaldehyde to obtain 2-p-chlorophenoxy-1- hydroxy - 4,4 - dimethyl - pentan - 3 - one which is reacted with imidazole.
Patent GB-918459-A (GB)
Title: Process for separation of the solvents from polyethylene formed in high-pressure polymerisation of ethylene in the presence of solvents and from the low-pressure circulating gas
Inventor: EILBRACHT HANS
IPC: C08F10/00
Filed: 1961-12-04
Abstract: <FORM:0918459/IV(a)/1> A process for removing solvent from polyethylene produced in a high pressure continuous process and from the low-pressure recycle gas comprises the steps of separating the polyethylene from the reaction mixture in a high pressure separator 10 at a pressure of more than 150 atmospheres and while maintaining a definite level of liquid therein is decompressed into a low-pressure separator 13 from which the entrained residual ethylene and solvent are led through a gas cooler 23 into a third separator 24 where the ethylene is substantially freed from solvent and led at atmospheric pressure with the remaining solvent to a countercurrent heat-exchanger 26.  The ethylene separated in the high-pressure separator with the bulk of the solvent is cooled in a precooler 16, part of this is expanded and separated from the solvent in a low-temperature separator 19 and returned through said heat-exchanger 26 and a second heat-exchanger 28 to the precompressor 3 where it is mixed with fresh ethylene 1.  The remainder of the ethylene from the precooler 16 is further cooled in an after-cooler 21 and supplied to the after-compressor 5 before passing to the reaction vessel 7. Solvent is removed from the system by valves 20 and 25 and enters the system by valve 31. Polyethylene is removed through valve 14.
Patent GB-1045218-A (GB)
Title: Electric cable gland
Inventor: BURTON PETER FREDERICK
IPC: H02G3/06
Filed: 1964-10-23
Abstract: 1,045,218. Securing cable coverings. ERICSSON TELEPHONES Ltd. July 23, 1965 [Oct. 23, 1964], No. 43258/64. Heading H2E. A cable E is secured to a casing M by means of collars A and B, between which the armouring D is clamped, and a member C which is retained in an extension of the collar B by a clip H and which screws into a threaded aperture N in the casing. The collar B is then secured in the member C by screws Q.
Patent GB-1468110-A (GB)
Title: Seal for rotary engines
IPC: F01C19/02
Filed: 1975-10-22
Abstract: 1468110 Rotary positive-displacement fluid-machines CATERPILLAR TRACTOR CO 22 Oct 1975 [20 Jan 1975] 43319/75 Heading F1F A radial seal 24 for the rotor of an I.C. engine,  which may be of the Wankel type, as shown, is hollow and partially filled with a vaporizable substance e.g. water, 36. The side walls may be corrugated vertically, Fig. 2 (not shown), and be supported by a corrugated and perforated inner member 38. A leaf-spring 26 holds the seal against the peripheral wall 12 of the working chamber.
Patent GB-1194419-A (GB)
Title: Press Tool for Cutting Sheet Material
Inventor: HATCH DEREK JOHN
IPC: B29C51/44
Filed: 1967-09-23
Abstract: 1,194,419. Cutting-out presses. JOSEPH DIXON TOOL CO. Ltd. 13 Nov., 1968 [23 Sept., 1967], No. 43402/67. Heading B4B. A press tool comprises a pair of platens 21, 31 having cutting rules 22 mounted on the platen 21, a support 23 for a punch 25 or a further rule also mounted on the platen 21, the second platen 31 having backing surfaces 33, 34, 35 adapted, on closure of the platens, to cause the cutting rules and, when provided, the punch, to cut or punch a pre-formed blank 12 between the platens. The platens 21, 31 which may be of plywood, are hinged together and the support 23 is of wood. As shown, the pre-formed blank is a plastics moulding incorporating a number of seed-trays which are to be separated and punched by means of the press tool.
Patent GB-1019140-A (GB)
Title: Improvements in or relating to supply arrangements for incandescent lamps
Inventor: BERLOCK MONTY DAVID
IPC: H05B41/282
Filed: 1963-11-05
Abstract: 1,019,140. Protective switching systems. PLESSEY-U.K. Ltd. Nov. 4, 1964 [Nov. 6, 1963], No. 43532/63. Heading H2H. A system for preventing an excessive current in a circuit comprising incandescent lamps 13, particularly when the lamps are switched on in a cold state includes a semi-conductor inverter 10 supplied from a D.C. source 12 and supplying A.C. mains 11, the lamp circuit being connected to the A.C. mains by way of an inductor 18 and a rectifier bridge 14 two arms of which are formed by silicon controlled rectifiers 15, triggering pulses for which are derived by way of a current transformer 19 which senses the output current of the inverter 10, an amplitude control unit 20 and a pulse generator 16. Thus should the output current of the invertor tend to rise above a predetermined safe value the conduction points of the controlled rectifiers are retarded. The inductor 18 limits the rate of rise of current in the lamp circuit and in the intervals between the voltage pulses delivered by the bridge rectifier 14 the energy stored in the inductor 18 is delivered to the lamps by means of a diode 21. A capacitor 22 is for smoothing purposes.
Patent GB-1474259-A (GB)
Title: Combination rotary and percussion drill bit
IPC: E21B10/56
Filed: 1974-10-09
Abstract: 1474259 Drill bits S C SKIDMORE 9 Oct 1974 [10 Oct 1973] 43657/74 Heading B4C [Also in Division E1] A rotary/percussive drill bit 10 includes a bit body 11 having a cylindrical portion 16 and a frusto-conical portion 20 ending in a flat end face 12 and a plurality of hardened inserts including inserts 14A on the end face 12, gauging inserts 18 on the cylindrical portion 16 and symmetrically arranged helical rows of inserts 22 on the frusto-conical portion 20, the spacing between the inserts 22 in each row being less than the width of the inserts 22. Each row of inserts 22 effectively establishes an elevated ridge which urges cuttings around and past the bit as it is rotated. The body 11 may also be formed with helical grooves 28 and openings 30 for the discharge of drilling fluid. A frustoconical transition surface 24 having inserts 26 may be formed between the surface 20 and end face 12. The entire bit may be given a coating of hard material, e.g. a chrome based material.
Patent GB-1195997-A (GB)
Title: Improvements relating to Graphite Suspensions
IPC: H01B1/18
Filed: 1967-09-26
Abstract: 1,195,997. Cathode-ray tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 26 Sept., 1967 [29 Sept., 1966], No. 43784/67. Heading H1D. [Also in Division C1] Colour or monochrome cathode-ray tubes of glass carry a conducting internal layer applied from an aqueous suspension of graphite, zinc oxide, silicic acid, lamp-black and water-glass (Division C1). The graphite grain size distribution may be 40% less than 5u, 13% between 5 and 10Á, 17% between 10 and 20Á, the remainder between 20 and 50Á. Percentages are by weight.