baber/WOPTO huggingface dataset:
Patent GB-650286-A (GB)
Title: Improvements in methods and means for guiding floating and cementing well casing in bored holes
IPC: E21B33/14
Filed: 1948-06-22
Abstract: 650,286. Well boring. SCHNITTER, S. B. June 22, 1948, No. 16757. Convention date, June 27, 1947. [Class 85] A well pipe or casing 3 is floated into a bore 2 and has secured on its lower end by shear pins 19 a shoe 4 in which is formed a one-way valve that prevents entry of water into the casing. When in position, a ball 16 is dropped down onto a seat formed in the shoe so closing the fluid passage through the shoe and a head 6 secured to the casing, the head normally being separated by valves from the fluid flow circuit to the casing formed by the pipe 13a, valve 11 and T-connection 9. On applying pressure, the shoe is blown clear of the casing so permitting washing fluid to be pumped through the casing into the borehole without encountering any major restriction to flow. During this washing process, the head is opened up to receive a plug 14, then closed. By opening valves 7, 12 and closing valve 11, this plug is forced into the casing. The valves are then reversed and cement pumped into the casing onto the plug 14, whilst a second plug 14a having attached to it a a valve 51 is placed in the now isolated head. When the desired quantity of cement has entered the casing, the second plug is entered into the casing in a manner similar to the first so that the cement is positively separated from the washing fluid. The cement is forced down the casing and enters the bore when the lowermost plug falls clear and the valve unit on the second plug engages and locks onto a seat on a venturi-like restriction 5 positioned in the casing through which both plugs have passed so preventing movement of fluid in either direction. The resilient plugs have a number of peripheral flanges and a hollow interior which is open at each end, the openings being provided with ferrules into which fit corks that are expelled by the pressure of the fluid within the plug when it is being distorted on being forced past the restriction in the casing.
Patent GB-729859-A (GB)
Title: Improvements in or relating to disc brakes for vehicles
Inventor: CLEMENTS HARRY
IPC: F16D55/228
Filed: 1953-06-18
Abstract: 729,859. Disc brakes. GIRLING, Ltd. April 27, 1954 [June 18, 1953], No. 16822/53. Class 103 (1). A disc brake for vehicles, of which the parts on each side of the disc 10 are similar, comprises circumferentially spaced opposed pairs of pads 26 which are engaged with the disc by pairs of fluid pressure piston and cylinder units 30, 31 through bell-crank members 32, the bores of the two cylinders on each side of the disc being inclined with respect to the plane of the disc, as shown in Fig. 3. A plurality of such brake units spaced around the disc and segmentalshaped pads in segmental bores in the housing may be used. Specification 709,305 is referred to.
Patent GB-200673-A (GB)
Title: Improvements in and relating to anti-vibration devices for armoured electric flex and flexible gas tubes
IPC: F21V15/04
Filed: 1922-06-19
Abstract: 200,673. Hadwen, H. E., and Willis, H. June 19, 1922. Clips, band.-In anti-vibration supports for lamps, a pair of clips A are provided connected by a spring F and adapted to grip the flexible electric lead or gas pipe B supporting the lamp, the clips being normally retained in the gripping position by the hooked ends E of the spring which are so shaped that, when turned in relation to the clips, the lead or gas pipe is released to permit adjustment of the height of the lamp. Each clip comprises a metal band terminating in lugs C which are perforated eccentrically to permit insertion of the hooked end of the spring in the position shown in Fig. 6, the hook being sufficiently narrow that, when turned into the normal position, the clip is caused to grip the lead &c. as shown in Fig. 8. When used in connection with unarmoured leads, india-rubber or other insulating sleeves are interposed between the clips and the lead.
Patent GB-1377435-A (GB)
Title: Triazolobenzodiazepines
IPC: C07D498/14
Filed: 1972-04-12
Abstract: 1377435 Triazolobenzodiazepines UPJOHN CO 12 April 1972 [11 May 1971] 16913/72 Heading C2C Oxazirinotriazolobenzodiazepines and triazolobenzodiazepine 5-oxides are prepared by oxidizing the corresponding triazolobenzodiazepine with a peracid (R=H, C 1-3  alkyl, Ph, PhCH 2 , nitromethyl, cyanomethyl, (C 1-3  alkoxy)methyl, NH 2 , di(C 1-3  alkyl)amino; n = 1, 2; R<SP>1</SP>, R<SP>11</SP>=H, C 1-3  alkyl or R<SP>1</SP> + R<SP>11</SP> = C 4-5  alkylene; R 2-5  = H, C 1-3  alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl or alkanoylamino, di(C 1-3  alkyl)- amino, halogen, CF 3 , NO 2 , CN, NH 2 ), and may be separated by standard methods, e.g. chromatography. The oxazirinotriazolobenzodiazepines may be converted to acid addition salts or, by heating, to the triazolobenzodiazepine 5- oxides. The oxazirinotriazolobenzodiazepines and their salts are sedatives, hypnotics, anticonvulsants, tranquilizers and muscle relaxants, and increase growth rate and feed efficiency of livestock. They may be administered in the form of pharmaceutical and veterinary preparations and feed additives containing them in association with a carrier.
Patent GB-1216557-A (GB)
Title: Improvements in gearings for producing intermittent and cyclically variable speed rotation
IPC: B29C45/06
Filed: 1968-04-09
Abstract: 1,216,557. Linkwork; slip couplings. DESMA-WERKE G.m.b.H. 9 April, 1968 [21 April, 1967; 23 Dec., 1967; 21 Feb., 1968], No. 16928/68. Headings F2C and F2K. A linkage converting uniform rotation of an input shaft 13 into intermittent and cyclically variable speed rotation of an output shaft 15 includes a guide slot 11 in a disc carried by and rotatable with one shaft, engaged by a roller 10 carried by the other shaft, the distance of the roller from the axes of both the shafts varying continuously as rotation proceeds. In Fig. 6, to move a crank-pin 22, carrying the roller 10, out of the rest position in which it is aligned with the input shaft 13, a disc 18 is driven from the shaft 13 via gears 21, 20, 18. The crank-pin 22 is connected by a link 17 to an eccentric pin 16 on the disc 18, and passes through an arcuate slot 32 in the disc 18 to engage a radial slot 23 in a disc 14 on the output shaft 15. In Fig. 11 the roller 10 is mounted on a slide 50 diametrically slidable in a slot in a disc 12 on the input shaft 13 under the control of a roller (51) (Fig. 10, not shown), mounted on the slide 50 and engaging a circular cam slot (52) in the gear casing 53. The cam slot is eccentric relative to the shaft 13. This arrangement carries the roller 10 out of its rest position in alignment with the input shaft. A cam 67 on the input shaft 13 actuates a switch to cut out the drive as the linkage reaches its rest position. An input wormwheel 55 is connected through an overload slip clutch to the shaft 13, an axially movable clutch member 59 being urged into facial tooth engagement with an axially fixed member 58 by adjustably preloaded compression springs 65.
Patent GB-793711-A (GB)
Title: Improved process and apparatus for the continuous curling of synthetic thermoplasticthreads or yarns
IPC: D02G1/02
Filed: 1955-06-13
Abstract: 793,711. Crimping threads and controlling tension therein. NAAMLOOZE VENNOOTSCHAP ONDERZOEKINGSINSTITUUT RESEARCH. June 13, 1955 [Dec. 14, 1954], No. 16970/55. Classes 120(2) and 120(3) In a process for continuously curling yarns of synthetic thermoplastic polymerization or polycondensation products, e.g. polyvinyl chloride, polyethylene, polyvinylidene chloride, polyacrylonitrile polyamide, and polyesters, a curled formation is imparted to the yarn by falsetwisting during which the yarn is passed from a twist stop and under constant tension of less than 6 grms./100 denier and free of vibration around a heated polished rod according to a helical line with an angle of inclination of at least 70 degrees; and through a cooling zone. As shown, a yarn 2 is drawn from a package 1 by conical rollers 3 and 4 (the former driven), and passes through a guide 5, connected to one arm of a balance 6, and between toothed wheels 8 and 9, carried on the other arm thereof: pivotal movement of the balance (damped by a rod 10 the flattened end of which is immersed in a liquid 11), following a variation in tension of the yarn, causes the guide 5 to move the yarn to a corrective position on the roller 4. The yarn encircles an electrically heated resistance wire 12 according to the helical path and is led through a cooling zone to a false-twisting spindle 19 which it leaves in a ballooning manner via a cup 21 on a yarn-storage disc 20: the yarn is withdrawn by a roll 23 and wound on a roll 25 which may be replaced by a twisting device (not shown), optionally imparting twist opposite to that applied in the zone wherein the false-twist is fixed. The wire 12 may be enclosed in a removable box which eliminates the influence of undesired air currents, Fig. 2 (not shown). The Specification refers to yarns of 30-70 denier moving at speeds of 15-30 metres/ minute under tensions from 0.5 grms., heating paths (and cooling zones) of 70 m.m.- 140 m.m. length, encircling angles of 45- 860 degrees on rods of 0.2 m.m-125 m.m diameter maintained at temperatures of 160-170‹C. on helical lines having angles of inclination of 70-89 degrees, and a falsetwisting spindle speed of 54,000 r.p.m. Specification 779,800 is referred to.
Patent GB-860924-A (GB)
Title: Improvements in or relating to toy wheeled vehicles
Inventor: MILLS AUBREY ROBERT
IPC: A63H19/02
Filed: 1959-05-19
Abstract: 860,924. Toy wheeled vehicles. A. G. M. INDUSTRIES Ltd. June 17, 1959 [May 19, 1959], No. 16995/59. Addition to 841,659. Class 132(3). Each pair of wheels of two bogies 44 of a toy locomotive is driven by a resilient band 52, e.g. a rubber band, which extends around a driving shaft 42 and around a plastic tube 50 fitted over stub shafts of metal wheels 49. Metal side frames 48 are secured to a cross member of electrically insulating material and the wheels are thus insulated from each other. The side frames may be connected by flexible leads to the terminals of the drive motor 41. The diameter of the tube 50 is greater than the diameter of the driving shaft to give a reduction ratio, and the band 52 serves to hold the wheels in position in the bogie. Four pairs of wheels may be provided on one or both bogies, each pair of wheels being driven by a separate band.
Patent GB-186403-A (GB)
Title: Improved apparatus for cutting tickets and the like
IPC: B26D7/18
Filed: 1921-06-23
Abstract: 186,403. Clark & Co., Ltd., (Companhia Brazileira de Linhas para Coser). June 23, 1921. Printing and embossing surfaces.-A process for producing printed tickets, consists in printing the tickets in a printing-machine in sheet form in positions which exactly correspond with the positions of a number of cutters in a cutting-machine, and then cutting the tickets simultaneously in the cutting-machine. Means for carrying out the method comprise a number of tubular cutters b secured to a cross-head d. A sheet of zinc e is marked by the cutters and separate tickets pasted in each impression. The sheet is then photographed and a printing-block prepared. A bedplate is formed by covering each of the tickets on the marked zinc sheet e with a small zinc plate f, the separate plates being packed up with paper liners to correct any unevenness. The cutters can be slid beneath a ticket-ejecting apparatus l, i, k.
Patent GB-334843-A (GB)
Title: Improvements relating to warp knitting machines
IPC: D04B23/12
Filed: 1929-06-06
Abstract: 334,843. Morton, J. June 6, 1929. Chenille.-A gripper device for machines for incorporating straight lengths or tufts into fabrics or strips comprises a pair of jaws 10, 11 and a cam 21 which can be moved together as a unit to seize a weft W<1>, transfer it to the needles, hold it in position while it is incorporated in the fabric, and thereafter release it. The jaws 10, 11 are 'preferably forced together positively by the cam 21, and are opened by a spring 17. For dealing with long wefts, two gripping devices are used, and are moved sideways after the weft has been seized so that the weft is drawn taut. Specifications 224,279, 281,043, [both in Class 74 (ii), Knitting &c.], 323,260, and 334,842 also are referred to.
Patent GB-1169843-A (GB)
Title: Improvements in or relating to Electric Immersion Heaters for Heating Liquids
IPC: H05B3/78
Filed: 1968-04-10
Abstract: 1,169,843. Immersion heaters. HERAEUSSCHOTT QUARZSCHMELZE G.m.b.H. 10 April, 1968 [14 April, 1967], No. 17413/68. Heading H5H. An immersion heater comprises a tungsten heating wire 2 in a quartz envelope 1, the envelope being arranged in a container 6 of transparent fused silica. The quartz envelope may comprise transparent or opaque fused silica and it may be evacuated. Wire 2 an be heated to 2000‹ C. and radiates heat at a power of 10 watts/sq. cm. of envelope area. A tapered ground section (7, Fig. 1) at at least one end of container 6 allows it to be mounted in a corresponding tapered opening of a distilling vessel. One or both ends of container 6 may be closed by an insulating stopper 5, electric connections being provided at both ends in the latter case. The envelope 1 and container 6 may both be rod-shaped. Discs or springs 15 support wire 2.
Patent GB-741847-A (GB)
Title: Improved method for producing filaments, films and like shaped structures from polymers and/or copolymers of acrylonitrile
IPC: D01F6/18
Filed: 1953-06-23
Abstract: Filaments, films and like shaped structures are obtained by wet-spinning a solution in nitric acid of an acrylonitrile polymer or copolymer containing at least 80 per cent of acrylonitrile in the polymer molecule, the coagulating bath consisting essentially of water and nitric acid and the temperature of the coagulating bath being so regulated that the filaments or other structures are of a matt white appearance.  The concentration of the nitric acid solution in which the polymer is dissolved to form the spinning solution is preferably 46-68 per cent by weight, and the concentration of nitric acid in the coagulating bath may be 1-40 per cent by weight, the temperature being betweenn 15 DEG  and 70 DEG  C. The filaments or other products obtained have a fine regular porous structure.  They may be subjected to stretching to improve the tensile strength.  In an example, polyacrylonitrile of molecular weight about 60,000 and one per cent of urea, based on the weight of the polymer, are dissolved at 20 DEG  C. in nitric acid of 59 per cent concentration to form a solution containing about 12 per cent of the polymer.  The solution is filtered and stored at 10-15 DEG  C.  It is then extruded into a coagulating bath consisting of 10 per cent nitric acid, the temperature of the bath being maintained at 35-40 DEG  C.  The filaments obtained are washed with water and passed through a hot aqueous bath containing phosphoric acid, polyvinyl alcohol and glycerol, in which the main proportion of the absorbed water is removed from the filaments and the swollen condition is removed.  The filaments are dried and then stretched while passing between a heated roller and a collecting bobbin.  The filaments obtained have a dull lustre and snow-white colour.  Instead of polyacrylonitrile, the polymer used may be a copolymer of acrylonitrile and methacrylamide, methacrylonitrile, dimethylaminoethyl methacrylate, vinyl pyridine, or vinylimidazole.  If desired, the washed filaments may be treated with hot water at 70 DEG  C. or above to remove the greater part of the absorbed water or they may be passed over a surface which is heated to 70-100 DEG  C.  The stretching or part of the stretching may be carried out in hot water or in water containing a very small proportion of a strong acid.  The stretched filaments may be treated with a finishing solution containing a lubricant and a small proportion of a strong acid.
Patent GB-129690-A (GB)
Title: Improvements in Explosive Shells or Bombs.
Inventor: BRIGHT FRED EUGENE
IPC: F42B10/56
Filed: 1917-11-26
Abstract: 129,690. Bright, F. E. Oct. 12, 1917, [Convention date]. Mines, marine. -Relates to fuses for bombs intended especially for use against submarines, of the kind provided with a cable to the end of which is attached a device for exploding the bomb at a depth in the water depending on the length of the cable. According to the invention, a retarding-device attached to the bomb by means of a cord or cable is adapted to trail behind when the bomb is dropped and to exert a pull on the cord when entering the water, so as to actuate the firing-mechanism. In the construction shown, the retarding-device consists of a hollow cone 5 secured to one end of a cord 4, the other end of which is attached to a spring-controlled plunger 10 in the fuse, Fig. 2. On being dropped into water, the bomb descends until the cone 5 strikes the surface, whereupon an upward pull on the cord occurs. The plunger 10, acting through a lever 15 pivoted thereto, cocks and releases a spring-actuated hammer 9, thus causing it to strike a firing-pin 8 and explode the bomb. A removable safety-pin 19 is provided. Reference has been directed by the Comptroller to Specification 129,009.
Patent GB-212813-A (GB)
Title: Improvements in or relating to closures for tins, cans and other receptacles
IPC: B65D55/12
Filed: 1923-07-05
Abstract: 212,813. De Bataafsche Petroleum- Maatschappij. June 11, 1923, [Convention date]. Plug stoppers, screw; sealing-devices for stoppers.-In a closure for tins, cans, &c., a screw plug stopper 1 is sealed and protected by a metal disc 3, the edge 4 of which is expanded into a groove formed inside the upper end 5 of the mouthpiece 2. An annular projecting surface 6 on the stopper co-operates with a packing-ring 7 in a groove in the mouthpiece to form a tight joint, or this arrangement may be reversed. The stopper may have a projection 8 for engagement with a hey for unscrewing.
Patent GB-1109592-A (GB)
Title: An improved system for degassing liquids being metered
IPC: F16K15/03
Filed: 1965-04-26
Abstract: 1,109,592. Degassing flowing liquids. LIQUID CONTROLS CORPORATION. 26 April, 1965 [11 Aug., 1964], No. 17547/65. Heading B1M. [Also in Divisions F1 and F2] To ensure accurate measurement of the amount of liquid flowing through a meter 35 a float-actuated check valve, consisting of a valve member 36 in the form of a pivotal plate mounted in a tubular housing 61, is arranged between an air eliminator 30 and the meter 35. Due to the effective upstream surface area of the valve member being greater than its effective downstream area the valve member is biased towards an open position when only liquid flows past it but moves towards a flow attenuating position when a turbulent flow occurs due to any entrained air passing which has not been removed by the eliminator 30. The open position is determined by a leg 85 and the flow attenuating position by means of bent-up tab 80.
Patent GB-486066-A (GB)
Title: Improvements in high-pressure metal-vapour electric discharge lamps
IPC: H01J61/30
Filed: 1937-06-24
Abstract: 486,066. Metal - vapour lamps. GENERAL ELECTRIC CO., Ltd. (Patent- Treuhand-Ges. f³r Elektrische Gl³hlampen) June 24, 1937, No. 17662. [Class 39 (i)] Relates to high pressure metal-vapour discharge lamps in which the electrodes are disposed near the ends of an elongated envelope, usually of quartz and consists in taking the lead to one or each of the electrodes 2 through the side of the envelope 1 approximately perpendicular to its axis and approximately opposite the electrode so as to diminish the overall length of the lamp. Preferably the lead is surrounded by a tube 3 which serves to protect it and to carry a cap or other terminal 11. As shown the tube 3 is wrapped with asbestos 7 and fits into a metal sleeve 8 secured by a clamp 9. The tube 8 is closed by an insulating plug 10 through which the lead 14 passes to the terminal 11. The seal can be made of a quartz tube 4 which is collapsed on to a strip 5 of molybdenum or tungsten which is joined at its inner end to a stouter support 6 for the electrode and at its outer end to the lead 14. Alternatively, intermediate glasses may be used for the seal. The inner surface of the seal is preferably continuous with the inner surface of the envelope near the electrode.
Patent GB-1535946-A (GB)
Title: Apparatus for indicating whether one or more objects are in motion
IPC: D03D51/34
Filed: 1976-04-30
Abstract: 1535946 Condition responsive systems STEN AKE OLAUS RYDBORN 30 April 1976 [5 May 1975] 17699/76 Heading G4N [Also in Division D1] Apparatus for indicating whether one or more objects, e.g. a weft in a shuttle-free loom, are in motion comprises a plurality of series-connected devices 3-10, e.g. piezoelectric crystals, which each emit an electrical signal when an object moves in its vicinity, a first signal amplifier 11 connected to one end of the series arrangement, a second signal amplifier 12 connected to the other end, a coupling device 21 which successively connects the connections between each pair of devices 3-10 to earth, and a gate circuit 16 whose inputs receive the outputs of the amplifiers 11, 12 and whose output is coupled to the device 21, whereby the operation of the device 21 is stopped by the gate circuit output when both amplifiers 11, 12 are receiving a signal, indicating that at least one device 3- 10 on both sides of the presently earthed connection is emitting a signal. As shown, the outputs of amplifiers 11, 12 are also connected to a mixing circuit 14, and the output of gate 16 is also connected to a bi-stable circuit 20 which is switchable only during an interval determined by a timer 2, e.g. a light limit switch, and whose outputs are connected to the circuit 14 and to a L.E.D. 22. The device 21 is a counter which receives clock pulses from a generator 19 coupled to the output of gate 16. In operation, if a weft is to consist of one thread, e.g. in device 5, then provided this is the only thread in motion and provided this thread remains intact, a signal is received either at amplifier 11 or at amplifier 12 and the operation proceeds normally. If this thread motion disappears, no signal is applied to either amplifier 11, 12 and thus no signal is applied to mixer 14, and thus no signal is applied to a knock-off device 1 which thus stops the power means of the loom. If a signal is received at the inputs of amplifiers 11, 12 simultaneously, indicating thread motion in at least one device on both sides of the presently earthed connection, the gate 16 output goes low which stops the generation of clock pulses by 19 and causes the bistable circuit 20 to switch over which in turn causes energization of L.E.D. 22 and which applies a signal to the mixer 14 to cause it to cease applying a signal to the knock-off device 1. Circuitry details are described with reference to Fig. 2 (not shown).
Patent GB-1518373-A (GB)
Title: Carbamates
IPC: C08K5/205
Filed: 1976-04-30
Abstract: 1518373 Cross-linking agents for rubbers IMPERIAL CHEMICAL INDUSTRIES Ltd 1 Feb 1977 [30 April 1976] 17704/76 Heading C3E [Also in Division C2] Natural and synthetic rubbers are crosslinked by incorporation therein of a compound of formula R1-O. CO. NHO. COXCO. OHN. CO. O-R1 where -COXCO- is the diacyl radical of a polybasic carboxylic acid and R1 is optionally substituted hydrocarbyl. In Examples, the compounds in which R1 is ethyl and -COXCO- is derived from terephthalic, adipic or fumaric acids are incorporated in SBR containing furnace black, optionally together with zinc diethyl dithiocarbamate.