baber/WOPTO huggingface dataset:
Patent GB-821941-A (GB)
Title: A method of lubricating relatively moving parts
Filed: 1955-12-01
Abstract: A method of lubricating relatively moving parts comprises using as lubricant either a substantially neutral ester corresponding to the general formula <FORM:0821941/III/1> where x is an integer from 2 to 8, R1 and R2 are hydrogen or alkyl radicals, n is an integer including O and the radical of the acetylenic alcohol from which the ester is derived contains from 3 to 10 carbon atoms in its longest carbon chain which chain includes the terminal ethinyl group and is linked to the hydroxyl group of the alcohol, or a mixture comprising the substantially neutral ester and a saturated ester having lubricating properties, examples of which include di-octyl azelate, di-isoamyl adipate, di-2 - ethylhexyl glutanate and di - 2 - ethylhexyl phthalate.  The expression "substantially neutral ester" denotes the pure diester or the diester containing a very small amount of the mono-ester.  The acetylenic di-esters are preferably those in which x is an integer from 4-8, n is 0, 1 or 2 and the alcohol radical, preferably tertiary, contains 3-5 carbon atoms in its longest chain.  The esters are high pressure lubricants and in the lubricant mixtures are preferably used in amounts ranging from 5-50% by weight of the whole.  Numerous acetylenic esters are named and their preparation is given (see Group IV (b)).ALSO:Esters having the general formula <FORM:0821941/IV (a)/1> wherein x is an integer from 2 to 8, R1 and R2 are hydrogen or alkyl radicals, n is an integer including O and the radical of the acetylenic alcohol from which the ester is derived contains from 3 to 10 carbon atoms in its longest chain which chain includes the terminal ethinyl group and is linked to the hydroxyl group, are prepared by reacting an appropriate acetylenic alcohol, preferably a tertiary alcohol, with the dichloride of the appropriate dibasic acid in the presence of an acid acceptor, e.g. pyridine, and an inert organic liquid medium.  The esters, examples of which are given, may be used in lubricating (see Group III).
Patent GB-1237402-A (GB)
Title: Pressure-resistant plastics bottle
Inventor: LACHNER OTTO
IPC: B65D1/02
Filed: 1968-07-19
Abstract: 1,237,402. Plastics bottle. UNILEVER Ltd. 19 July, 1968 [20 July, 1967], No. 34531/68. Heading B8D. A pressure-resistant plastics bottle for carbonated liquids has its wall formed with a main part 1 adjacent a curved transition zone 2 which merges into a curved base 3 having a concavely recessed centre portion and a circular contact line a by which the base makes contact with a supporting surface. The weight of plastics material used is 1À25 to 2À5 grams per centimeter of bottle height. The transition zone 2 is in the form of a hyperbola and has a height H which is equal to or greater than 0À4 times the maximum diameter D of the bottle in the main part. The radius of curvature of the curved transition zone 2 is less than infinity adjacent the main part 1 and changes by decreasing steadily toward the curved base to a minimum radius of curvature at the contact line a of 0À15 to 0À3 times the maximum diameter D of the main part. The diameter d of the contact line of the bottle base is 0À4 to 0À7 times the maximum diameter D. The bottle may be of rigid P.V.C.
Patent GB-918060-A (GB)
Title: Preparation of surgical cannulae
IPC: A61M5/34
Filed: 1961-09-27
Abstract: A thermoplastic mount is attached to a hypodermic needle by heating the needle inductively until the thermoplastic material in contact with the needle is melted and welds itself on to the metal.  Suitable materials for the mount are polyethylene, polypropylene, polyvinyl chloride and nylon and this is made a close fit on the metal cannula and, after being positioned, the combination is placed within the output coil of an inductive heating appliance.  This causes the metal to be heated until the plastic adjacent to it has melted, so that it flows into contact with the cannula and, when cooled, securely bonds the two together.
Patent GB-887551-A (GB)
Title: Improvements in vehicle power-trnasmission arrangements
IPC: F16H37/00
Filed: 1960-10-10
Abstract: 887,551. Tractor driving gear and power take off. LINDE'S EISMASCHINEN A.G. GES. FUR. Oct. 10, 1960 [Oct. 9, 1959], No. 34614/60. Class 79(2). A tractor power-take off and power transmission arrangement comprises an engine driven shaft 2 which drives a hydraulic pump 9 through gears 7 and 8. The pump output is controlled in magnitude and direction by a lever 13 and drives a motor 10 which drives an axle 6 through shaft 11, clutch 12, shaft 3 and differential gear 5. The driven shaft 2 drives a power take off shaft through a friction clutch 14 and gears 15, 16 and 17, gear 16 being freely mounted on shaft 11 but being connectible thereto by a clutch 18. Thus, the arrangement provides a hydraulic transmission to the axle 6 with the power take off shaft driven proportionately to the engine speed (clutches 14 and 12 engaged), or by disengaging clutch 14 and engaging clutches 12 and 18, the power take off shaft speed is proportional to the tractor road speed. By engaging clutch 18 and disengaging clutches 12 and 14, the power take off shaft is driven from the motor 10. In a modification, Fig. 2, the power take off shaft 4 is driven from the engine driven shaft 2, clutch 14 and gears 23, 24 and the axle 6 is driven from the motor 10 through gears 22, 20, clutch 21, shaft 3 and differential 5. A gear 19 is axially but non-rotatably movable on shaft 4 and may be engaged with gear 20, replacing the clutch 18 of Fig. 1.
Patent GB-985190-A (GB)
Title: Improvements in automatic control systems
Inventor: FULLER RAYMOND ALAN
IPC: H02J3/48
Filed: 1962-09-11
Abstract: 985,190. Automatic power control systems. REGULATEURS EUROPA Ltd. Sept. 11,1963 [Sept. 11,1962],No. 34677/62. Heading G3R. In an arrangement in which a load is supplied by two or more "local" alternators A, B augmented by the public electricity supply E, the output of the master alternator A is varied automatically with the load demand so that the load taken from the public supply does not exceed a predetermined value. This value is represented by a preset adjustable load reference H which forms one input to a comparator G whose other input is from a load-measuring circuit F connected to the public supply E,the resultant signal from comparator G being fed to a three-position switch I for the speedsetting motor (not shown) on the governor of the master alternator A. To ensure that alternators A, B maintain their correct proportion of the total demand (less that provided by the public supply), further load measuring circuits J, K are connected respectively to these alternators and to another comparator L whose output signal is fed to a threeposition switch M controlling the governor of alternator B. If provided,a third alternator C is similarly controlled by comparing its output with that of A through circuit elements N, L,O. If the load demand falls to that provided by the public electricity supply, the measuring circuits F, J, K, N, may be used to indicate total demand in a circuit arranged to initiate appropriate switching-off of either the public supply or the local alternator sets,which may be started up again for a rising demand in a similar way. Elements F,J,K,N  may comprise conventional static circuits, and switches I,M,O may be either polarised relays or known static circuitry.
Patent GB-1203611-A (GB)
Title: Novel dressing and use thereof
IPC: A61L15/44
Filed: 1967-07-28
Abstract: 1,203,611. Transparent dressings. UNION CARBIDE CORP. 28 July, 1967 [8 Aug., 1966], No. 34736/67. Heading B2E. [Also in Divisions A5, C3 and D1] A transparent dressing comprises a layer of a hydrophilic, water-insoluble polymeric gel derived from a polyether of the general formula: which has been cross-linked by ionising radiation in the absence of a chemical cross-linking agent, R 1  and R 2  being hydrogen, alkyl or alkylaryl, R 2 , R 3 , R 4 , and R 5  and R 6  being hydrogen, methyl, phenyl or vinyl, at least one of R 3  and R 4  and of R 5  and R 6  being hydrogen, and n being greater than 1. The gel may be supported on one surface by a backing which is gas and vapour permeable, e.g. a synthetic resin or cellulose derivative. It may be secured to the gel by irradiation during cross-linking or by adhesives or surface tension or by incorporating monomers into the gel and grafting the synthetic resin by irradiation. The unsupported side may also be covered by a removable, polymeric film. The gel may be strengthened by the incorporation of a mesh or gauze of nylon, rayon &c and it may also contain medicaments.
Patent GB-605424-A (GB)
Title: Improvements in or relating to sheet-feeding apparatus
IPC: B65H1/30
Filed: 1945-12-21
Abstract: 605,424. Feeding sheets. BACKHOUSE, H. T. Dec. 21, 1945, No. 34814. [Class 100(i)] In a sheet-feeding apparatus in which the pile is carried by a board 1 raised automatically by bars 3 carried by chains 4, and auxiliary raising means such as racks 6, 8 are provided to continue the feed while another board is supplied to the bars 3, the pile board 1 is transferred as a whole, with the sheets carried thereby to the auxiliary raising means. The rack 6 is fitted with a detachable bar 5 for engaging the rear end of the board 1, and the racks 8 are fitted with spring-pressed pawls 7 which can move past the board 1 when moving downwards but engage the board when moving upwards. The bar 5 may be replaced by a pivoted bar 17, Fig. 2, which acts similarly to the pawls 7. The chains 4 are driven by sprockets on shafts 15a driven by worm gearing from ratchet mechanism 27 shown in Fig. 6, and an associated ratchet 29 drives by worm gearing pinions 11 for operating the racks 6, 8. The ratchets are fitted with shields 30, 31 for the operating pawls 26, 29, Fig. 6, and a lever 36 which operates the shields can be set in one of three positions which cause both pawls to be inoperative, or either pawl to operate. The lever mechanism for operating the pawls is controlled by a feeler resting on the pile, and a shield continues to prevent operation of the ratchet so long as the pile does not need replenishing.
Patent GB-1070922-A (GB)
Title: Gas cooling apparatus
Inventor: CROCKFORD GEOFFREY WILLIAM
IPC: F28C1/00
Filed: 1962-09-12
Abstract: 1,070,922. Contacting gases with liquids. THE BRITISH IRON & STEEL RESEARCH ASSOCIATION. Nov. 13, 1963 [Sept. 12, 1962], No. 34821/62. Heading B1R. [Also in Division F4] In a gas cooling unit in which a gas is cooled by causing a flow of the gas to break up a liquid such as water into droplets, whereby the latent heat of evaporation of the droplets is effective to cause cooling of the gas, the gas, which is preferably air, passes from an inlet pipe 17 into a manifold chamber 12 and thence through perforated pipes 14 into a cooler 11 filled with water to a level 23 said pipes being below water level, whereby sprays of water are thrown up by the air into the space within the cooler, in which space are arranged a number of inclined, parallel, perforated plates 16 on to which water spray is deposited as air passes through the cooler. Some of the water droplets evaporate so cooling the air. An air outlet pipe 18 from the cooler is connected by a by-pass pipe 20 containing a gate valve 21 to the inlet pipe 17, permitting the quantity of air passing through the cooler to be regulated and mixtures of cooled and non-cooled air to be discharged through the outlet pipe 18. The cooler may be made of metal or of a synthetic plastic material.
Patent GB-301332-A (GB)
Title: Reflector arrangement for incandescent lamps
IPC: F21S13/00
Filed: 1928-11-26
Abstract: 301,332. Richter, H. Nov. 25, 1927, [Convention date]. Belts; braces; hose suspenders.- An elastic link for use in! belts, braces, suspenders, and the like comprises a flat compartmented casing 1, housing a series of flat pull rcds 6 surrounded by springs 8. As shown, the rods are arranged in pairs to pull out of the casings in opposite directions against the action of their springs. The springs bear at one end against the casing and at the other against washers 7 on the rods. In the construction shown in Fig. 4, flat rods or strips 21 are maintained apart by a distance piece 20 to fill up the interior of the spring 8 and prevent distortion thereof. A grating 30 may be provided, as shown in Fig. 5, for the pull rods, and may have guideways 31 for extensions 28 on the rods. The extensions shown may be replaced by another having two pairs of bent-up guide portions.
Patent GB-521983-A (GB)
Title: Improvements in tuning indicators in radio receiving sets
IPC: H01J31/14
Filed: 1938-11-30
Abstract: 521,983. Tuning indicators. M-O VALVE CO., Ltd., and COSGROVE, C. W. Nov. 30, 1938, No. 34883. [Classes 39 (i) and 40 (v)] A tuning indicator for a wireless receiver comprises two shadow electrodes 8, 9 intervening on different lines between the cathode 6 and a cylindrical screen 7 of a cathode ray tube, and means causing the electrodes to approach the potential of the screen at different rates as the receiver approaches tune. The electrodes 8, 9 are connected to the anode of a controlling triode 2, one directly and the other through a resistance 10 or battery whereby it is maintained more negative with respect to the screen. The electrodes of the triode and cathode ray tube may be enclosed in the same envelope, the two cathodes being combined, and the resistances 10, 4 may be arranged within the envelope or in its cap. Specification 506,390 is referred to.
Patent GB-1396416-A (GB)
Title: Self-propelling vehicles
IPC: B60L11/18
Filed: 1972-07-26
Abstract: 1396416 Control of several D.C. motors W HOUSTON 26 July 1972 34906/72 Heading H2D  In a self-propelled vehicle for which motive power is provided by, for each side of the vehicle, at least one electric drive motor 1, 3, 5, 7 (as shown). In the driving condition, steering of the vehicle is effected by varying the power supplied to the motor(s) on one side relative to the amount of power supplied to the motor(s) on the other side. In the braking condition, when the motors act as generators and feed power back to the power source (battery), a control means including unidirectional switches 19 effects steering by interrupting the passage of current generated by the motor(s) on both sides of the vehicle and varying the duration of the periods of interruption in respect of the motor(s) on one side relative to the duration of those periods on the other. The motors (series wound, D.C.) have similar control circuits 9, 10, 11, 12 respectively. Gauged steering potentiometers 29, 30 act during driving and braking respectively. Circuit 9 for example, which controls motor 1, comprises a comparator 13, a unidirectional switch 15 to control power supplied from a D.C. source 16, an integrator 17 which integrates the motor back-e.m.f. During driving, comparator 13 emits square wave pulses to close switch 15 only when the amplitude of a saw-tooth signal from a generator 21 exceeds that of the integrator output. The saw-tooth amplitude is controlled by a speed selector 28 and a speed pot 22. If the motor load increases the back-e.m.f. will decrease and thus the width of the current pulses will be increased. A steering potentiometer controls the ratio of the amplitudes of the sawtooth signals fed to the left-hand side and right hand side control circuits. During braking, energy is returned to the power source 16 via unidirectional switches 19 controlled by square pulses from comparators 31, 32, respectively associated with the left and right side drive motors. The relative braking is determined by steering pot 30 connected to the comparators 31, 32 whereby to effect relative control of the periods of interruption of reactive current fed back via switches 19.
Patent GB-1392095-A (GB)
Title: Fixing device
IPC: F16B37/04
Filed: 1972-07-26
Abstract: 1392095 Screw fastenings RAWLPLUG CO Ltd 10 July 1973 [26 July 1972] 34966/72 Heading F2H In a fixing device a cylindrical nut 12 is bonded or fixed by an adhesive in a sleeve 11 of neoprene, rubber or flexible plastics material. The sleeve 11 may be provided with a flange 13 and the nut 12 may have one or more peripheral grooves 15.
Patent GB-1460510-A (GB)
Title: Assembly of a cylinder head with a cylinder tube welded thereto
IPC: F02F1/00
Filed: 1974-08-08
Abstract: 1460510 Welding by fusion; making cylinders KLOCKNER-HUMBOLDT-DEUTZ AG 8 Aug 1974 [21 Aug 1973] 35050/74 Headings B3A and B3R [Also in Division F1] In making an I.C. engine cylinder head and cylinder tube assembly, particularly for aircooled and diesel engines and when the head and tube are respectively of aluminium and grey cast iron, the head 1 and the tube 3 are first fully machined and then electron beam butt-welded together and, to protect the machined tube bore from welding heat and metal droplets formed during welding, the tube, at its weld end, is provided with an annular groove 7 extending longitudinally of the tube between an inner tube part including the tube bore and an outer tube part welded to the head, and the outer part extends longitudinally beyond the inner part. Preferably, the groove is 0À2-1 mm radial width and approximately 6 mm. deep, and, to allow for expansion, a gap of approximately 1 mm. should exist between the end face of the inner tube part and the head. The tube may comprise a press-fitted or cast-in liner, and preferably one wall of the groove is defined by the liner (Figs. 3, 4, not shown). A metal strip or band may be fitted into the groove (Fig. 2, not shown) to prevent carbon formation. The outer tube part may centeringly and sealingly tightly engage a spigot portion (12) of the head (Figs. 2-4, not shown), so that with the head entered into a vacuum chamber heating water or air can be directed into the interior of the cylinder on to the region of the weld seam for heating the work before and during welding, and so that the head resists welding stress on the tube.
Patent GB-1391586-A (GB)
Title: Method of tempering sheet glass
IPC: C03B27/044
Filed: 1973-07-24
Abstract: 1391586 Tempering sheet glass FORD MOTOR CO Ltd 24 July 1973 [18 Aug 1972] 35164/73 Heading C1M A method of tempering a glass sheet 16 comprises: positioning the sheet 16 on a handling fixture 12 (e.g. a fixture including a ring mould 14 and supported on rollers 18); conveying the sheet 16 and handling fixture 12 through a heating chamber 32; rapidly withdrawing sheet 16 and handling fixture 12 from heating chamber 32 before the sheet has had time to come to an equilibrium temperature; and tempering the glass in a quenching station 34; the trailing edge 26 of glass sheet 16 being preheated before the sheet is passed into heating chamber 32 so as to reduce the tendency towards breakage during quenching. The trailing edge 26 may be heated, e.g. to 300-400 F., using gas burners 24 dependent from manifolds 20, 22. The sheet 16 preferably is heated in chamber 32 to, e.g., 1200-1300 F., and preferably the preheating is such that, on leaving chamber 32, the trailing edge 26 has a temperature not more than 10 F. above or below the leading edge temperature. Auxiliary burners 24 (on manifold 28) may be used to preheat the eges of any holes 30 drilled through the sheet. The sheet 16 may be reshaped on ring mould 14 in conventional manner in passing through heating chamber 32, e.g. to form a curved windscreen. In the quenching station the sheet may be tempered using gas jets (e.g. air) from orifices 36.
Patent GB-417745-A (GB)
Title: De-ballasting machine for railways
IPC: E01B27/10
Filed: 1933-12-14
Abstract: 417,745. Cleaning &c. railway ballast. GUILBERT, P. L., 1, Rue Faucon, Rouen, Seine-Inferieure, and LEGRAND, J., 128, Rue de la Republique, St. MandÚ, Seine, both in France. Dec. 14, 1933, No. 35181. Convention date, Dec. 22, 1932. [Class 104 (ii).] A machine for screening or removing railway ballast comprises an endless chain 1, travelling in an inclined quadrilateral frame 6, 7, 9, 13 on pulleys 2-5. The chain carries excavating vanes &c. which loosen the ballast and carry it up to the top of the frame where it passes to a discharge device or to screening apparatus, from which the cleaned ballast returns by a shoot 28 to the track, while the dirt passes to a conveyer 24. The apparatus may be quickly dismantled, and is mounted at the lower end on adjustable supports 16, 17 carried by wheels 14, 15 on an auxiliary track, while the screening end is supported on a frame 30 mounted on wheels 31 and carrying rails 27 on which the screening apparatus may be transversely adjusted. A vertically adjustable plough 33 spreads the cleaned ballast.
Patent GB-394250-A (GB)
Title: Method of producing marbled glass surfaces
IPC: B44F9/04
Filed: 1932-12-12
Abstract: 394,250. Ornamenting glass. MAMMOGLAS GES., and SANDERSFELDT, G., 33, Treseburgerstrasse, Bremen, Germany. Dec. 12, 1932, No. 35184. [Class 93.] A marbled appearance is produced on glass by forming a matt surface by grinding the glass with fine moist sand in a plate-glass grinding-machine, coating the surface with pigment mixed with benzol, and applying a protective layer. Several coats of pigment of different colours or shades may be applied, each coat being applied before the previous one is dry, whereby the colours are blended. To promote this blending, the matt surface may be rubbed with alcohol. The last colour coat may be covered with a silver bronze lacquer to produce a lustrous effect, and is followed by a protective coat consisting of umber varnish mixed with sand and emery.
Patent GB-503642-A (GB)
Title: Improvements relating to the concentration and purification of gonadotropic hormones
IPC: A61K38/24
Filed: 1937-12-20
Abstract: 503,642. Gonadotropic hormones. INSTITUT DE SEROTHERAPIE HEMO-. POIETIQUE SOC. ANON. Dec. 20, 1937, No. 35301. Convention date, Dec. 19, 1936. [Class 81 (i)] Gonadotropic hormones' are obtained from the serum of pregnant mares by adding an equal volume of acidified alcohol to precipitate albuminous substances, removing the precipitate, and then adding a further quantity of alcohol to precipitate the hormones. According to an example sodium chloride is added together with the final quantity of alcohol. The hormopes may be further purified by dissolving the precipitate in dilute alkali solution, neutralization of the solution, addition of an equal volume of alcohol to precipitate impurities and addition of more alcohol to the clear solution to re-precipitate the hormones. These steps may be repeated. Water may replace the dilute alkali solution for extraction of the. hormones. The Specification as open to inspection under Sect. 91 refers also to a known process according to which acetone is added to the serum to precipitate the hormone together with albuminous substances, and the hormone is extracted from the precipitate by means of dilute alcohol. This subject-matter does not appear in the Specification as accepted.