baber/WOPTO huggingface dataset:
Patent GB-1309993-A (GB)
Title: Process for the preparation of 2-thion-oxazolidinone-5 and derivativ es thereof
IPC: C07D263/46
Filed: 1971-04-19
Abstract: 1309993 Oxazolidine derivatives STAMICARBON NV 19 April 1971 [18 Feb 1970] 23564/71 Heading C2C Novel 2-thion-oxazolidinones-5 of formula where R 1  is H or an α-amino acid residue (defined as the substituents attached to the α- carbon of an α-aminocarboxylic acid from which the compound is derived), R 2  is H or optionally substituted C 1-3  alkyl and R 3  is H or C 1-3  alkyl, or R 1  and R 3  together represent a C 1-3  alkylene or substituted alkylene group forming an α-amino acid residue in which the amino group forms part of a ring, are prepared by reacting a tertiary alkyl ester of either an α-isothiocyanate carboxylic acid or an N-thiocarbonyl chloride of an α-secondary amino carboxylic acid (e.g. proline type).
Patent GB-154027-A (GB)
Title: Improvements in telephonic and like transmission systems
IPC: H04B1/58
Filed: 1919-09-25
Abstract: 154,027. Western Electric Co., (Western Electric Co.). Sept. 25, 1919. Drawings to Specification. Telephone systems.-When a transmission line is divided into two sections by a transformer, as in a two-way repeater system, impedances are inserted such that the resultant impedance of one section is substantially equal to that of the other section multiplied by the transformer ratio. The impedance inserted in each section may comprise a capacity, or a capacity in parallel with a resistance or inductance, or a capacity, resistance, and inductance all three in parallel. Mathematical investigations are given in the Specification to show how the elements of the two circuits should be proportioned in order that the above-stated condition may be approximately secured over a practical range of frequencies.
Patent GB-748093-A (GB)
Title: A method of and apparatus for supplying low-pressure sealing steam to steam turbine glands
Inventor: YATES HENRY GEORGE
IPC: F01D11/06
Filed: 1953-08-26
Abstract: 748,093. Heating steam boilers by steam. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Aug. 12, 1954 [Aug. 26, 1953], No. 23609/53. Class 123(2).  An apparatus for supplying low pressure sealing steam to the glands of a condensing steam turbine consists of a casing f into which water is fed by a pump a and which contains a coil g connected at its upper end by a pipe h to a source of high pressure steam and at its lower end to a floatcontrolled trap i through which water condensed in coil g is periodically discharged. The steam generated in casing f discharges through a pipe d into the chamber of a float valve j which serves to prevent passage of water to the turbine glands if the level of water in casing f rises excessively and flows from the valve chamber to the turbine glands through a control valve b and a pipe e. The valve b is adjusted manually or automatically in dependence on the gland steam pressure to regulate the steam output from the generator, the pump a being designed so that its output falls with increasing back pressure to vary the water level in casing f and hence the area of heating surface contacted by the water, thus providing for the varying steam output.
Patent GB-1333677-A (GB)
Title: Assembly apparatus
IPC: E04B1/19
Filed: 1971-04-19
Abstract: 1333677 Assembling structural elements C NASI 19 April 1971 [11 March 1970] 23659/71 Heading E1K Structural elements. of elongated form, are assembled by means of a device consisting of a base, in the form of a solid prism, and a number of fins disposed in inclined planes which extend into and intersect within the base 1, the base and fins being apertured for the reception of bolts or rivets to connect the base to one or more of the structural elements and the fins to other ones of the structural elements. In the embodiment of Fig. 2, the base 1 is of square form as seen in plan and has four inclined fins 3 secured to its top edges; e.g. by welding. Girders 9 are secured to the fins by bolts 10, and a bolt 8 secures the base to two beams 6, 7. In the embodiment of Fig. 3, fins 11 extend from the corners of the base 1, and the beams 12, 13 are of I section with parts of their flanges cut-away as shown. In another embodiment (Fig. 4, not shown), two trapezoidal fins (14) extend from two opposite edges of the base, each fin having two apertures to secure two girders to the fin. Further fins may be added to produce a pyramidal structure. In a further embodiment (Fig. 5, not shown), the base is rectangular as seen in plan and has a plurality of apertures (19) for fixing it in a selected position on one of a pair of crossed I section beams (23, 24) and fins (21, 27) extending at assorted angles from the two longer sides of the base.
Patent GB-1039905-A (GB)
Title: Method and device for finishing the flanks of the teeth of bevel gear wheels
IPC: C12Q1/54
Filed: 1963-06-14
Abstract: 1,039,905. Forging bevel gears. BANKHAUS BASS & HERTZ, AND K. G. BLœ- CHER VON WAHLSTATT, [trading as BAYERISCHES LEICHTMETALLWERKE KOMM. GES.]. June 14, 1963 [April 24, 1963], No. 23734/63. Heading B3H. The teeth of bevel gears are modified to produce active regions 6 in the centre of the flanks 5 by cold forging the gear 2 in a die 1 by means of a punch 3. The regions 6 protrude slightly from the flanks, Fig. 2 (not shown). An ejector 4 is provided.
Patent GB-185425-A (GB)
Title: Improvements in centrifugal devices for cleaning air
IPC: B01D45/14
Filed: 1922-09-01
Abstract: 185,425. Adams, E. M., (Assignee of Quam, J. P.). Sept. 2, 1921, [Convention date]. Density separators.-An air-cleaning device of the kind described in Specification 169,723, particularly for use with internal-combustion engines, has a casing 1 with an inlet 5 at one end and concentric outlets 2, 6 at the other end. An extension of the outlet 2 passes inside the casing to the open end-piece 8 and carries a conical partition 9 which restricts the outlet 6 to a narrow annular opening. A spindle 13 is secured to a spider 20 in the extended conduit 2 and supports a rotor 3 having a conical member 11 provided with vanes 12. A propeller 4 is attached to the rotor. The passage of air due to the suction on the conduit 2 causes the propeller 4 to rotate the rotor 3. The air then entering the inlet 5 passes between the conical member 11 and the casing 1. its velocity increasing in the narrower part of the space. The particles of dirt &c. are thrown outwards by centrifugal force and pass down the casing into the atmosphere through the outlet 6 The clean air is drawn into the open end 8 of the conduit 2 and out through the conduit by the suction of the engine.
Patent GB-1149678-A (GB)
Title: Hand laced seams
Inventor: CROSS HAROLD MORREY
IPC: D21F1/12
Filed: 1967-05-23
Abstract: 1,149,678. Seaming non-metallic sheet material. FABRIC RESEARCH LABORATORIES Inc. 23 May, 1967, No. 23894/67. Heading B5K. The end portions A, B of a strip of fabric 5 formed of woven warp strands 6 and weft strands 7 are joined to form a Fourdrinier belt by (a) joining the cut length of the fabric with a temporary seam, (b) heat setting and tensioning the loop so-formed to straighten the warp strands 6 and crimp the weft strands 7 and to lengthen the loop, (c) cutting the set fabric to the length required to form the finished belt loop plus approximately 12 inches, (d) removing weft strands equally from each end of the fabric until the fabric with undisturbed weft strands has the required length, (e) bringing the two ends of the fabric together so that the last weft strands on each end lie in normal weave spacing relationship to each other, one on each side of a line C, and holding them together temporarily, (f) knotting the corresponding free warp ends 9, 10 together at 11, (g) pulling alternate knotted warp strands 6 on opposite sides of the line C through a length of the weave in a direction away from the line C, (h) setting the laced seam by the application of a coating of synthetic plastic material, and (i) trimming the ends of the drawn-through warp strands close to the surface of the fabric. The strands 6, 7 may be of synthetic or natural fibres or a mixture thereof-multifilament polyester strands are specified as the warp strands. The fabric is woven on a flat loom in any desired pattern. The knots 11 used to join the warp ends 9, 10 are preferably slip knots and are tied alternately in the strands 9, 10, 9, 10... To pull the knotted strands through the weave, a warp strand 9 or 10 is teased out of the undisturbed portion A or B in the form of a loop by a needle 13. The tying portion of the slip knot 11 is in the warp end being pulled so that the tied end of the warp strand trails. The positions of the knots 11 in the portions A, B are arranged in staggered pattern, e.g. as in Fig. 11 (not shown). After the pulling-through of the knots, the endless belt is again tensioned to straighten out any inequalities in the hand-lacing operation. In one method of finishing the seam, while the belt is still under tension, the tied warp ends 9, 10 extending from the surface are cut short and the seam, or the whole fabric, is coated with polyurethane. After the coating has set, the warp ends (9<SP>1</SP>), (10<SP>1</SP>) are sheared off close to the adjacent fabric surface, Figs. 5 and 9 (both not shown). Preferably, the ends (9<SP>1</SP>), (10<SP>1</SP>) overlap each other and are bonded together and to adjacent weft strands. In another method of finishing the seam, after tensioning, the slip knots 11 are cut out and the warp strands 9, 10 are tied with a tight knot (14), Fig. 10 (not shown), as close under the fabric surface as possible. The fabric is then coated with polyurethane.
Patent GB-1395744-A (GB)
Title: Oil filler cap
IPC: F01M11/04
Filed: 1972-05-22
Abstract: 1395744 Oil filler caps AUTOMOTIVE PRODUCTS Ltd 24 April 1973 [22 May 1972] 24031/72 Heading B8T A plug for an oil refill hole in the rocker cover of a motor vehicle engine has a filter element 39 which carries an oleophobic substance, e.g. the radially inner surface 41 may be coated with the substance. The outer surface 43 may be coated with an adsorbent which may be activated carbon. Venting of gas takes place through an aperture 35 of a snap-in disc 33 and a passage 13 in an element 3 of the plug, a spigot 29 acting as a baffle to collect oil from the gas in drops which drain back through the aperture 35. The filter element 39 may be of air-laid non-woven material.
Patent GB-1148672-A (GB)
Title: Improvements in and relating to water-insoluble monoazo dyes
Inventor: BEANLANDS REGINALD DARNBOROUGH
IPC: C09B29/08
Filed: 1966-05-31
Abstract: 1,148,672. Monoazo dyes. YORKSHIRE DYEWARE & CHEMICAL CO. Ltd. 17 May, 1967 [31 May, 1966], No. 24073/66. Heading C4P. The invention comprises water-insoluble monoazo dyes of the formula wherein R 1  and R 2  are CH 3  or C 2 H 5 , R 3  is H or alkylene OH and the alkylene groups contain at least two carbon atoms. They may be obtained by diazotizing 2,4-dinitro-6-chloroaniline and coupling with an amine of formula which may comprise a mixture of the amines in which R 3  is H and alkylene OH. Examples are given for the production of the dyes. They are useful for dyeing or printing hydrophobic fibres.
Patent GB-1433791-A (GB)
Title: Life saving equipment for vessels
IPC: B63H5/16
Filed: 1973-05-21
Abstract: 1433791 Marker buoys INTERCONTINENTAL MARINE Ltd 16 May 1974 [21 May 1973] 24113/73 Headings B7A B7S and B7U A marker buoy carries at least one inflatable liferaft and is releasably attached to a vessel so that in an emergency it may either be launched by a davit or floats off as the vessel sinks whilst remaining secured to the sunken vessel by a cable 43, wound on a drum 40. In a preferred construction (Fig. 2) two inflatable liferafts are stowed in compartments closed by covers 74 and are inflated from respective carbon dioxide bottles 76 either by hand via respective first pull cords or by respective second pull cords which are tensioned by an associated line as the vessel sinks. Each of these lines is initially wound on a respective reel attached to a respective one of the second pull cords and, as the vessel sinks with the drum 40 reeling out the cable 43, it is reeled on to a respective auxiliary drum 59. When all the line is off its reel it tensions the associated pull cord and thereby opens the respective gas bottle and this occurs when the sinking vessel is well clear of the floating buoy. The inflated liferafts are held connected to the buoy by their painters 78. One of the compartments in which the liferafts are normally stowed also holds a buoyant mooring line which is streamed from the buoy for mooring other liferafts or boats. The rotation of the drum is damped by vanes which are mounted on its cheeks and by a friction brake. The top of the buoy 10 carries a radio transmitter 21, batteries 22, strobe light 23, antenna 29 and radar reflector 31.
Patent GB-1425950-A (GB)
Title: Self-aligning roller bearing assemblies
IPC: F16C23/08
Filed: 1973-05-21
Abstract: 1425950 Bearings BORG-WARNER CORP 21 May 1973 [29 June 1972] 24117/73 Heading F2A A self-aligning bearing assembly comprises a roller bearing 20 having an outer spherical surface 78, and a housing 12 having an opening to receive said bearing, said opening having spaced arcuate surfaces of revolution 30, 34 engaging said outer spherical surface, each said arcuate surface being generated by an arc A, A-1 which, when considered in any plane containing the longitudinal centre line of the opening, has a radius R, R-1 the centre C, C-1 of which is offset both from said longitudinal centre line and from a second plane P perpendicular to said line, the opening being symmetrical about said second plane P. The spaced arcuate surfaces may be connected by a third surface 32. The centres C, C-1 in generating the said surfaces traverse circular paths about the longitudinal centre line in planes parallel to plane P. The housing 12 comprises a base 14 to which is bolted a top 16. In a further embodiment (Fig. 6, not shown) one said arcuate surface is defined on a separate ring which is inserted in a cylindrical bore in the housing 12, being retained therein by a locking ring.
Patent GB-676594-A (GB)
Title: Improvements in or relating to a belt tension adjusting device
IPC: F16H7/14
Filed: 1950-10-03
Abstract: 676,594. Endless conveyers. POCOCK, M. A. Oct. 3, 1950. [Nov. 16, 1949] No. 24131/50. Class 78 (i). [Also in Group XXIV] A belt tensioning device, particularly for belts in laundry equipment for conveying flat articles such as sheets, is adapted for quick loosening or tightening of the belts so that the tension can be readily relieved when the equipment is not in operation. As shown, a pair of belts 8 spaced apart on a frame 1 .carry clips 21 on their upper surfaces for securing the articles and have a series of lugs 24 on their lower surfaces for engagement by driving pulleys 10 at one end. At the other end a pair of supporting pulleys 9 are free on a shaft 11 which is supported by movable side members 27 which are adapted toslide in the ends of tubular side rails 4 of the frame 1. These members 27 are screwed at 28 to receive adjusting nuts 29 which nuts are engaged by collars 31 on which are pivoted swinging links 33. These links carry at their other ends rollers 37 for cooperating with surfaces 30 of supporting members 6 for the side rails 4 and are adapted to be actuated by handles 35. In the position shown the links 33 are parallel to the side rails 4 and shaft 11 is held outwardly by the collars 31 engaging the nuts 29 to tension the belt. If the handles 35 are pulled, the rollers 37 disengage from the surfaces 30'and the side members 27 are free to move into the side rails 4 to slacken the belt. Reverse movement of the handles 35 restores the belt tension by the cam action of the rollers 37 on the surfaces 30 and cross member 36 on the handles limits the inward movement of the handles.
Patent GB-812187-A (GB)
Title: Improvements in or relating to cleaning mineral spirits
Inventor: LISTER LESLIE
IPC: C10G17/02
Filed: 1956-08-07
Abstract: Volatile hydrocarbons, which may contain dissolved fatty acid, are cleansed from contamination by fatty acid salts of aluminium by vigorously mixing the contaminated hydrocarbon with aqueous nitric acid having a strength of 5 to 50 per cent weight in an amount at least equal to the stoichiometrical amount required to decompose all the fatty acid salt of <PICT:0812187/III/1> aluminium and subsequently separating the hydrocarbon plus fatty acid from the spent aqueous nitric acid.  The process is particularly applicable to mineral spirits containing fatty acid (as lubricant) which are used in ball-milling operations wherein aluminium powder is converted to flaked aluminium paste.  A large proportion of the spent nitric acid and aluminium particles (now free from the emulsifying action of the fatty acid salt of aluminium) can be removed by gravity separation. The remainder of the acid may be removed by water washing, e.g. with warm water rendered slightly acidic with 1 per cent sulphuric, followed by gravity separation or, preferably, centrifuging.  The presence of any appreciable concentration of metal ions in the wash water should be avoided, e.g. by using de-ionized water and ensuring that no appreciable quantity of aluminium stearate is carried forward.  Contaminated mineral spirit having an ash value of 1 g./litre is supplied to mixer 3 from pipe 2 at 100 gallons/hour while nitric acid (25 per cent vol. commercial concentrated HNO3/75 per cent vol. water) is added from pipe 4 at 2 1/2 gallons/hour.  The volume of mixer 3 is sufficient to ensure a residence period of at least 40 minutes.  The mixture then passes to settlement vessel 6 from which the aqueous phase containing spent acid and aluminium nitrate is discarded while the hydrocarbon phases passes to a mixer 7 where it is mixed with an equal volume of warm wash water (30 DEG C.) from pipe 8 and sulphuric acid to adjust the pH to 2 from pipe 9. The mixture is then passed to another settlement vessel similar to vessel 6 and the hydrocarbon phase then has the last traces of water removed in a centrifuge.
Patent GB-985452-A (GB)
Title: Improvements in spooling hubs for tape recording equipment
Inventor: BLAXTAN PETER WILLIAM
IPC: G11B15/66
Filed: 1962-06-22
Abstract: 985,452. Winding bobbins. RANK-BUSH MURPHY Ltd. June 24,1963 [June 22,1962],No. 24211/62. Heading D1J. [Also in Division G5] A spindle 11 on which a tape spool is to be mounted comprises a cylindrical portion 13 connected to an end portion 12, of substantially the same diameter as portion 13, by a recessed portion 10, with surfaces 14 and 15 being slant to the axis of the spindle so that jamming of spools during mounting on the spindle is prevented. The portion 12 may be of rounded section.
Patent GB-708310-A (GB)
Title: Spacers for irrigation shower plates in water cooling towers
IPC: F28F25/08
Filed: 1951-10-17
Abstract: 708,310. Water cooling towers. MASCHINENBAU-AKT.-GES. Oct. 17, 1951 [July 27, 1951], No. 24259/51. Class 64(1) Spacers 3 for ensuring the required separation between the freely-suspended shower plates 1 of water cooling towers are made of dumb-bell shape for ready attachment to alternate plates as in Fig. 4. The spacers are attached either by means of a key-hole slot 2 in the plate, or by making the spacer in two separate parts as in Fig. 3 for use with circular holes in the plates.
Patent GB-586343-A (GB)
Title: Improvements in conveyors
IPC: B65G21/06
Filed: 1944-12-05
Abstract: 586,343. Endless-belt conveyers. FISHER & LUDLOW, Ltd., and ORWIN, O. J. B. Dec. 5, 1944, No. 24271. [Class 78 (i)] The framework of a conveyer for use in factories or stores is composed of a number of sheet metal units which are placed end-to-end and detachably connected together. Each intermediate unit 10, Fig. 4, is pressed to a channel section and is provided with rollers 11 or skid plates to support the belt. The side walls are bent outwardly at 15 and downwardly at 16 to provide narrow frame members which are strengthened by sheet metal gussets 17 welded thereto. These gussets and the downwardly directed flanges 18 at each end of the channel are drilled to receive bolts 23, Fig. 3, which connect them to the legs 20 and upper transverse members 21 of supports 19. The lower transverse members 21 support a shelf 22. Screwed feet 25 are provided at the bottom of each leg. A flanged panel 52 forming a work bench may be secured to the flange 16 by bolts 53 and the ends of adjacent panels may be bolted to sheet metal brackets 55 secured to the legs 20. Side tables 58, Fig. 3, supported by legs 56 may be bolted to the flanges 16 or legs 20, or formed with gussets for attachment to the legs. Undershelving 61 is bolted to the legs 56, 20 and shelves 22. Tubes 63, Fig. 6, forming foot rails are secured to the legs 20 by U-bolts 64. The driving unit 26, Fig. 5, comprises side and end plates 27, 28 connected by corner pieces 29 of angle section and a flanged cover 30. It is supported by adjustable feet 33 and is provided with transverse angle members 31 which support longitudinal bearers 32. Bolts 34 secure the unit to the adjacent unit 10. A power unit, e.g., an electric motor 36, is mounted on the lower bearer 32 and drives through chain or belt gearing 39 the pulley 38 over which the conveyer belt 13 passes. The tensioning unit 41 is of similar construction to the driving unit, but only its upper part is enclosed by plates 45 and a cover 46 to form a chamber which contains the belt tensioning pulley 47. The bearings 49 for the pulley spindle are supported by plain guide bars 50 and are engaged by screws 48.
Patent GB-330823-A (GB)
Title: Improvements in plug cocks for gas and other fluids
Filed: 1929-08-09
Abstract: 330,823. British Brass Fittings, Ltd., and Sperryn, G. N. Aug. 9, 1929. Channels in valves. - In order to lubricate rotary plug valves a passage g is provided in the body b of the cock or valve and communicates with the exterior through a passage f which is closed by a screw k and through which lubricant is admitted to the passage g. A light spring j presses a pad h of oil-saturated felt or similar material against the working face of the valve casing a, said pad transferring lubricant from the passage g to the working faces of the valve in small and regular quantities.