baber/WOPTO huggingface dataset:
Patent GB-1272614-A (GB)
Title: Hydrocarbon oils containing wax crystal modifiers
Inventor: TUNKEL NORMAN
IPC: C10L1/195
Filed: 1969-04-28
Abstract: 1,272,614. Olefin/carbon monoxide copolymers. ESSO RESEARCH & ENG. CO. 28 April, 1969 [28 May, 1968], No. 21467/69. Heading C3P. [Also in Division C5] Copolymers of MW 500-50,000 comprising a major weight proportion of C 2 -C 30  α-olefin and CO in a relative molar proportion of olefin : CO of 0À5 to 40 :1, are prepared by free-radical catalysis in solution. The copolymers may comprise up to 30 wt. per cent of a third comonomer which is an unsaturated ester of the formula R 1 R 2 C=CHR 3  where R 1  is H or Me, R 2  is -OOCR 4  or -COOR 4  where R 4  is H or C 1 -C 16  alkyl; and R 3  is H or -COOR 4 . Preferred ester comonomers are vinyl acetate and isobutyl acrylate or methacrylate. Examples describe the co-polymerization of CO with ethylene and/or n-tetradecene using dilauryl peroxide or di-t-butyl peroxide as free radical initiators. The copolymers are added in minor amounts to hydrocarbon oils.
Patent GB-434848-A (GB)
Title: Improvements in or relating to electric switching, indicating and/or alarm apparatus
IPC: G08B13/26
Filed: 1934-07-23
Abstract: 434,848. Valve circuits. LOVIBOND, R. A., 110, Jermyn Street, London. July 23, 1934, No. 21520. [Class 40 (v)] Relates to valve relays for automatically operating display, alarm, or other devices. On the approach of a person towards a capacitative element 10 connected through a resonant circuit 2, 4 to the grid of an oscillating valve 6, the resulting capacity-change throws the grid circuit 2, 4 out of tune with the plate circuit 1, 3, so that the plate current falls and opens a normally-closed relay 20 associated with a back-up or holding relay 21. To offset any gradual falling-off in sensitivity, one of the variable condensers 3, 4 or 13 may be arranged in parallel with the capacity formed between a piece of foil 25, Fig. 2, on the needle of a milliammeter 23 and an arcuate strip 24; if the anode current rises or falls beyond the normal, the resulting capacity-change restores the tuned circuits to resonance. The condensers 3, 13 may be combined ; and a high-capacity condenser may be inserted across the grid and filament to set the valve into a slow oscillation suitable for operating an intermittent flash-light or similar device. The relay 20 may be replaced by the arrangement shown in Fig. 3, where the light from a lamp 18<1> (which may form part of the resistance 18, Fig. 1) is prevented from reaching a photo-electric 20 by the passing of a shutter 25 carried by the ammeter needle, Fig. 2, over an aperture 26 formed in the arcuate strip 24.
Patent GB-987536-A (GB)
Title: Cathode-ray light-modulating apparatus for reproducing television images
IPC: C07F7/18
Filed: 1963-05-29
Abstract: Aryloxy silanes of the formula R4- mSi(OZ)m, where R is a methyl or aromatic radical or the radical -OCH2CH2C6H5, Z is naphthyl, biphenylyl or phenoxyphenyl and m is 1 to 4, are used as deformable media in conducting interiors of cathode-ray television projection systems (see Division H1).  They are prepared by reacting the phenols HOZ with halosilanes R4- mSiHalm in the presence of an acid binder, except when R is OCH2CH2C6H5 when ethyl silicate is first reacted with the phenol and then with 2-phenylethanol. The examples describe the preparation, inter alia, of (1) tetra-(o-biphenyl) silicate; (2) bis-(m-phenoxyphenoxy) diphenylsilane; (7) bis-(o-phenylphenoxy) diphenylsilane; and (8) o - biphenylyloxy - tris - (2 - phenylethoxy) silane.  The silanes may be mixed with polysiloxanes, e.g. equal parts of polydiphenylsiloxane of average molecular weight 1000-1500. Specifications 548,911, 548,912 and 909,403 are referred to.
Patent GB-995934-A (GB)
Title: Improvements in or relating to sealing means for universal joints
Inventor: CULL WILLIAM
IPC: F16D3/38
Filed: 1963-05-30
Abstract: 995,934. Universal Joints; seals. BIRFIELD ENGINEERING Ltd. May 28, 1964 [May 30, 1963], No. 21591/63. Headings F2B and F2U. A needle roller bearing 6 of a Hooke's type universal joint is sealed by a resilient sealing ring 12 having two elongated sealing lips 10, 11 and an integral outer skirt 20 which surrounds a journal 9 and prevents dirt reaching the sealing lip 11. The lip 11 engages a curved portion 8 of a bearing pin 1 on the cross-piece and thus produces an axial thrust which retains the seal in position. The seal is a close fit within a metal sleeve 24 which is force fitted in a recess 18 in a cup 4 enclosing the bearings 6. An extension 22 of the skirt 20 surrounds the end 26 of the sleeve 24 and abuts the bearing cup 4. The ends of the needle rollers are supported by a flange 25 on the sleeve 24.
Patent GB-1235663-A (GB)
Title: Improvements in or relating to structural members for building
Inventor: MOLYNEUX GEORGE
IPC: E04C3/08
Filed: 1967-05-10
Abstract: 1,235,663. Portal frames formed of lattice girders. MOLYNEUX ENG. CO. Ltd. 9 Aug., 1968 [10 May, 1967], No. 21725/67. Heading E1K. A half-portal frames comprises a column and a beam each formed by two T-section members which are obtained by cutting longitudinally through the web of an I-section beam and which are spaced with their webs aligned and connected by angle-section struts welded to faces of the webs of the T-members, longitudinally successive struts being secured on opposite sides of the common web plane at an angle to each other with all the struts on each one side being parallel, the column and beam being interconnected by a stiffening plate to form a knee. Two such half-portal frames may be connected at the apex by a stiffening plate to form a portal frame.
Patent GB-1451663-A (GB)
Title: Rotary drive apparatus
IPC: F16H7/00
Filed: 1973-05-07
Abstract: 1451663 Screwing up and unscrewing pipes WEATHERFORD OIL TOOL (UK) Ltd 3 May 1974 [7 May 1973 2 Nov 1973] 21735/73 and 51078/73 Heading B3N [Also in Divisions E1 and F2] In an apparatus for applying rotary torque to a cylindrical member such as a drill hole casing tube 38, an endless belt or chain 42 is led around a driving wheel 14, over a series of idler wheels 34, 20, 24 and 26, 22, 36, and forms a re-entrant bight 44 which frictionally embraces part of the periphery of the driven cylindrical member 38, with idlers 20, 22 located on a housing 18, to which are hinged jaw members 30, 32 carrying idlers 34, 36, permitting the bight to become opened for insertion or withdrawal of the cylindrical member, and with means provided for positioning the idlers 24, 26 along slots 25, 27, in order to adjust the tension in the belt or chain 42, and to adjust the bight perimeter to accommodate driven members of alternative diameters, such as members 52 in Fig. 1. A chain 42 may be driven by a sprocket wheel 14. Alternatively, a belt or chain 60, Fig. 5, may be provided with profiled links 64 which engage a surface of complementary contour 62 on the alternative drive wheel 58, such that relative slip may occur when the tension is relaxed, and the optimum tension is that which just allows the torque to be transmitted without slip occurring. The drive motor 10 may be hydraulic, and hydraulic piston actuators may be used for closing the jaws 30, 32, and also for positioning the tensioning idlers 24, 26. Flanges (not shown) may be provided on each of the idlers, and also on additional rollers 70, Fig. 7, for lateral support of the bight of belt or chain. A latch 40, which may be automatic, may be fitted for retaining the jaws 30, 32, closed. Additionally, or instead of latch 40, a hydraulic piston and cylinder device 76 may be provided for opening and closing each of the jaws 30, 32, or they may be opened by hydraulic means acting against return springs.
Patent GB-1457236-A (GB)
Title: Process for pasteurizing raw poultry
IPC: A23B4/005
Filed: 1975-05-21
Abstract: 1457236 Pasteurising poultry ARMOUR & CO 21 May 1975 [6 June 1974] 21778/75 Heading A2D A method of pasteurising raw poultry comprises immersing the poultry in an edible oil having a temperature of 180 to 315‹F for 10-60 secs, and removing the poultry from the oil. The poultry may be chilled before immersion, or may be frozen before or after immersion. The oil may be any animal or vegetable oil or any edible triglyceride.
Patent GB-319449-A (GB)
Title: Improvements in the manufacture of clutch facings and similar frictional materials
IPC: F16D69/02
Filed: 1928-07-27
Abstract: 319,449. Robertson, J. H. July 27, 1928. Clutches, friction. -Friction materials for clutch and like facings are made by forming fibrous material and a binder into slabs, which are ground to fine powder and moulded to the final shape under heat and pressure, in order to secure homogeneity and uniformity of surface. One part by weight of alcoholic solution of a phenol formaldehyde condensation product may be mixed with three parts of disintegrated asbestos fibre, the mixture being dried and coldpressed into slabs, which are powdered by an abrasive wheel, solid lubricant such as powdered talc or, say, 7-10 per cent of powdered graphite being, if desired, added thereto. The powder is then moulded under a pressure of, say, 1 ton per sq. inch, and baked at, say 360-365‹ F., preferably under pressure. The material is suitable for variable-speed friction gears, such as described in Specification 306,753.
Patent GB-1203146-A (GB)
Title: Method of making thermomagnetic recording members and members made thereby
IPC: G03G5/16
Filed: 1968-05-08
Abstract: 1,203,146. Printing from developed magnetic images; embossing and embossing surfaces. E. I. DU PONT DE NEMOURS & CO. 8 May, 1968 [8 May, 1967], No. 21846/68. Headings B6C and B6J. [Also in Division H1] A thermomagnetic recording member comprising a plastics film having a patterned distribution of ferromagnetic material therein (see Division H1) is used to print an image by magnetizing the member, placing it in contact with the image, flashing through the back of the member with a xenon lamp, immersing the member in a suspension of Fe powder in a hydrocarbon or of Fe 3 O 4  in a polyamide, drying it, and pressing it on to a sheet (Examples 1 and 6). Alternatively (as in Example 14) the member, which contains Fe 2 O 3 , is placed in contact with a film containing CrO 2 , and heated above the Curie pt. of CrO 2 ; the CrO 2  film is then selectively demagnetized by projection through an image using a xenon lamp, dipped in magnetic ink, and pressed on to paper. Embossing.-An embossed polymeric film is produced by forming grooves or dots in a master plate, which may be flat or cylindrical, then applying a solution of the polymer or a liquid prepolymer over the surface of the plate and allowing it to harden, or pressing the plate on to a preformed sheet whose surface has been softened with a solvent or by heat. The plate may have 394, 295, 197, or 189 lines or dots per cm. The polymer solution may be polymethyl methacrylate in acetone, polystyrene in benzene, or PVC in tetrahydrofuran, or a solution of a polycarbonate resin, cellulose acetate, or a polyether urethane; the prepolymer may be a polyurethane or epoxy prepolymer or methylmethacrylate prepolymer dissolved in a methylmethacrylate monomer; and the preformed plastic may be polycarbonate or cellulose acetate (softened respectively with methylene chloride and acetone), or a coating on a polyethylene terephthalate base of cellulose acetate, nylon, ethyl cellulose, polycarbonate, or polyether urethane. The master plate may be made by wrapping an opaque polymer film on a polyethylene terephthalate support round a mandrel, cutting grooves in the surface of the film, depositing a Cu layer electrolessly on the surface, plating Ni on top of the Cu, and removing the film and Cu layer from the required Ni plate.
Patent GB-852356-A (GB)
Title: A device for turning the plough bodies of reversible ploughs
IPC: A01B3/42
Filed: 1957-07-10
Abstract: 852,356. Agricultural implements. VYZ. KUMNY USTAV ZEMEDELSKYCH STROJU, and SONSEK, J. July 10, 1957 [Nov. 16, 1956], No. 21861/57. Class 6(1). A reversible plough comprises a crank arm 11 rigidly mounted on a rotatable shaft 3 carrying plough bodies and pivotally connected to a control lever 13 connected by a chain 23 to a fixed point on the tractor, a pin 14 on the lever 13 being slidalby mounted in a slot 15 in a guide member 10 which is rotatable on the shaft 3 and is held in the position shown by a spring 21. The rear portion of the pin 14 engages a trigger lever 20 which is connected by a link 19 with a lock which locks the shaft in both its working positions. The plough is attached to the hydraulic lifting device of the tractor. To rotate the plough bodies the linkage is raised tightening the chain 23 and causing the lever 13 to rock downwards about the pin 12 depressing the lever 20 and releasing the shaft for rotation. When the pin 14 contacts the bottom of slot 15 the arm 11 is rotated clockwise together with the lever 13 and guide 10 until the opposite plough body is in position when the shaft is locked in position. As the plough is lowered the arm 11 remains in its new position and the guide returns to the position shown. The shaft 3 is rotated through about 80 degrees and when 180 degrees rotation is required a gear wheel is mounted in the shaft 3 and meshes with a toothed segment 26 provided on a sleeve which carries the arm 11 and member 10. Specifications 544,041 and 730,001 are referred to.
Patent GB-246747-A (GB)
Title: Improvements in or relating to cable winding machinery employed for the cultivation of land
IPC: A01B3/72
Filed: 1925-09-02
Abstract: 246,747. Robinson, P. Sept. 2, 1925. Drawings to Specification. Stands or supports ; appliances for extricating bogged vehicles.-A vehicle used in the cultivation of land which carries cable-winding machinery and is anchoxed by forcing a number of spades, dises, conical spikes, or tines into the ground by mechanical means, is raised when it becomes bogged by placing balks of timber between the spades, &c., and the ground and actuating the spade depressing mechanism.
Patent GB-918475-A (GB)
Title: Starting and operating circuit for gaseous discharge devices
IPC: H05B41/231
Filed: 1961-06-19
Abstract: 918,475. Control systems for high-pressure discharge lamps. BASIC PRODUCTS CORPORATION. June 19, 1961 [July 28, 1960], No. 22009/61. Classes 38 (2) and 38 (4). Apparatus for starting and operating a highpressure high-intensity discharge lamp 12 of the xenon type wherein the lamp is started by means of alternating current and operated by means of direct current comprises a rectifier 15 over which the lamp 12 is supplied from an A.C. source 11, a combination including a highreactance transformer 13 and a capacitor 39 being included in the supply to the rectifier 15 whereby a substantially constant output voltage and current is maintained at the lamp 12 irrespective of changes in the source voltage, a spark gap oscillator 17 being provided to inject high-frequency high voltages into the lamp circuit by way of a transformer 58 having a ferrite core to initiate ionization of the lamp 12. A relay having a winding 76 in the lamp circuit is provided whereby when the lamp 12 strikes the relay contacts 18 open to remove the supply to the oscillator 17. A safety relay is provided having a winding 77 so that should the lamp fail to strike after a given time the relay contacts 19 open to remove the supply to the oscillator 17. The high-reactance transformer (see Fig. 2) has a primary winding 43 and a secondary winding 44 arranged on the centre limb 42 of a laminated core 41, magnetic shunts 49, 53 having air gaps 52, 55 therein being arranged between the primary and secondary windings. Specifications 529,420, 599,802 and 798,764 are referred to.
Patent GB-1114212-A (GB)
Title: Improvements in hand-propelled lawn mowers
Inventor: TODD-REEVE LESLIE
IPC: A01D34/47
Filed: 1965-05-25
Abstract: 1,114,212. Lawn mowers. VALOR CO. Ltd. 16 May, 1966 [25 May, 1965], No. 22036/65. Heading A1F. A hand propelled lawn mower comprises a land roller or wheel which, through a transmission comprising a drum rotatable with or forming at least a part of the land roller or wheel and having an internal circumferential surface, drives a wheel of smaller diameter rotatable about an axis parallel to the rotational axis of the drum, said smaller wheel having an external peripheral surface frictionally engageable with the internal surface of the drum and being adapted to drive a cutter. The axis of the smaller wheel is movable in a direction having a component radial to the drum and tangential thereto. When the mower is pushed forwards the smaller wheel is arranged to engage the drum and when moved backwards the engagement between the wheel and drum is reduced. The illustrated mower includes a cutter 30 driven by a land roller 10 via a friction wheel 19 carried by one arm of a bell crank lever 23, 25 pivoted on side frame 15 at 24 and urged lightly into engagement with an internal circumferential surface of the roller by spring 26. During forward movement of the cutter the friction wheel is urged into contact with the surface by the spring and by the force exerted on the wheel by the rotating roller and the wheel is rotated by the roller. During rearward movement of the mower the friction wheel is forced away from the internal surface against action of the spring so that the cutter is not rotated.
Patent GB-359531-A (GB)
Title: A new or improved device for transporting blocks bars and the like
IPC: B62B5/00
Filed: 1930-07-22
Abstract: 359,531. Hand-trucks. EVANS, W. J., Highburv Avenue, Bulwell, Nottingham. July 22, 1930, No. 22050. [Class 108 (i).] A device for transporting blocks, bars, timber, &c., in a factory or during building operations comprising a rigid frame member 1 having depending end portions 2 in which are mounted a plurality of axially-aligned rollers 3, is characterized by the load-bearing surface 7 being secured to the frame. The load carrier 7 is made of rubber or similar material and may be formed with ribs. It may be attached to the frame by stiff wires 8 and nuts 9. In a modification rollers 10, Fig. 4, are mounted on spindles extending between the end members 12, and a pair of screw-actuated clamping jaws 13 are provided for preventing the displacement of the load. One or more detachable handles 17, Fig. 1, are used for manipulating the device.
Patent GB-1410182-A (GB)
Title: Feed water control in forced circulation steam generators
IPC: F22B35/00
Filed: 1973-05-09
Abstract: 1410182 Steam generators SULZER BROS Ltd 9 May 1973 [16 May 1972] 22050/73 Heading F4A In a forced circulation steam generator ineluding an evaporator 5, at least one superheater 7, 8, or water separator 6 positioned between the evaporator 5 and one superheater 7, means is provided for measuring the difference in pressure between two levels in the water separator 6 to measure the water level in the separator and valve means 2 controls the rate of feed water from a feed water tank (not shown) through a feed pump 1 to an economizer 3 and the evaporator 5 in dependence on the measured pressure difference on another variable when, in an upper load range, the separator 6 is dry, means 40, 46 being provided for generating an alarm signal if the measured pressure difference lies outside a predetermined range. The pressure difference in the separator 6 is measured by means of a differential pressure-operated diaphragm cell 63 which transmits movement to a rod 68 associated with the diaphragm which supplies an input signal to a signal transducer 30 and a calculator 31. The signal transducer 30 also receives a signal from a pressure sensor 34 and the limiting signals are fed via a controller 32, which receives a temperature signal from a temperature sensor 36 positioned between the two superheaters 7, 8 to a feed controller 37 which actuates the valve member 2.
Patent GB-997836-A (GB)
Title: Ball-and-socket joints
Inventor: KNOTT BERNARD ROBERT
IPC: F16C11/06
Filed: 1962-06-07
Abstract: 997,836. Ball joints. RUBBER PLASTICS Ltd. June 27, 1963 [June 7, 1962], No. 22057/ 62. Heading E2F. In a ball joint the diameter of the mouth of the socket is smaller than the diameter of the ball and the diameter of the spherical seating in the socket, prior to the insertion of the ball, is larger than the diameter of the mouth but smaller than the diameter of the ball so that the socket, which is made in one piece from elastic material, yields to permit the insertion of the ball and thereafter grips the ball with a friction loading. The socket is preferably made from polyurethane, and may be moulded onto a rod 6, Fig. 2, so as to be rotatable but not axially movable thereon. Alternatively the socket may be formed with an apertured shank adapted to receive the threaded end of a rod. In a further embodiment, Fig. 4, the socket 19 is moulded in situ in the aperture 29 of a link 20 using mould members 21, 22 and a core piece 28 formed as a ball stud. A socket such as 19 may be formed separately and inserted subsequently into an aperture 29 in a link, withdrawal being prevented by flanges 24, 26 or by securing the socket to the link with a suitable bonding agent e.g. polyisocyanate. The friction between the ball and the socket can be controlled and abrasion resistance increased by dispersing dry lubricants such as molybdenum disulphide and/or liquid lubricants such as silicone oil in the polyurethane.
Patent GB-360454-A (GB)
Title: Method for the manufacture of insulating bands
IPC: H01B3/50
Filed: 1930-07-22
Abstract: 360,454. Bias -cut fabrics. JACKSON, L. M•LLERSH-, 28, Southampton Buildings, London.- (Siemens - Schuckertwerke Akt.-Ges. ; Siemensstadt, Berlin.) July 22, 1930, No. 22111. Drawings to Specification. [Class 42 (i).] In order that the expansibility of the fabric may conform to that of the lac with which it is impregnated, electric insulating bands are made from a bias cut fabric, made from a tubular fabric or from rhomboidal strips of fabric sewn together, which is finished with a normal thread intersection and is stretched prior to saturation with lac to produce an acute angle thread intersection, the fabric being then cut into band-like strips before or after lac saturation.
Patent GB-1435491-A (GB)
Title: Tare setting apparatus for container filling machines
IPC: G01G23/14
Filed: 1972-05-11
Abstract: 1435491 Taring device CENTURY OILS Ltd 11 May 1973 [11 May 1972] 22123/72 Heading G1W A weighing machine of the type comprising a platform for receiving a container to be filled with liquid and a pointer moving over a scale, is provided with an automatic taring device comprising a weighted piston 36 movable in a cylinder 34 under the control of a fluidic computer 18. An auxiliary needle 12 moves with the indicating pointer (not shown) and fluidic jet sensors 14, 16 detect when the pointer 12 is not at zero. The piston 36 is moved to restore the pointer to zero by means of hydraulic fluid admitted to cylinder 34 via capillary lines 30, 32 from reservoirs 22, 24 via valves 26, 28 controlled by computer 18. One or other of the reservoirs is pressurized by compressed air admitted via valve 20 under the control of computer 18 to force fluid into one side or the other of the cylinder for positive or negative tare. When  the pointer is at zero, valves 26, 28 close to lock the position in place in the cylinder.
Patent GB-1034061-A (GB)
Title: Improved thermoelectric cooler unit
Inventor: WHEELER LESLIE JOHN
IPC: F25B21/02
Filed: 1961-10-19
Abstract: 1,034,061. Thermoelectric devices. DE HAVILLAND AIRCRAFT CO. Ltd. Oct. 30, 1962 [Oct. 19, 1961], No. 22130/61. Addition to 1,007,436. Heading H1K. In a multi-stage thermo-electric cooler unit consisting of a plurality of series connected assemblies each containing at least one pair of thermo-electrically opposite elements, the number of pairs of elements per assembly increases in the direction away from the cooling end and a central aperture is provided through the assemblies. The arrangement shown (Fig. 1) is a two-stage unit. A transistor 16 is supported by a flange 17 on a heat exchange member 14 and disposed in a central aperture extending through both stages. The cooler assembly is in thermal contact through an insulator plate 13 and aluminium disc 15 with a fin assembly as described in Specification 1,034,062.