baber/WOPTO huggingface dataset:
Patent GB-979251-A (GB)
Title: Improvements in or relating to new sensitizing dyes and sensitized photographic emulsions
Inventor: LIBEER MARCEL JAN
IPC: C09B23/02
Filed: 1961-03-24
Abstract: Benzimidazolium quaternary salts are obtained by mixing 1-ethyl-2-methyl-5-chloro-6-bromo-benzimidazole with ethyl iodide or b -bromoethanol and heating.  Specification 955,963 is referred to.ALSO:Cyanine and merocyanine dyes are described which contain a 5-chloro-6-bromo-benzimidazole nucleus. Carbocyanine dyes are prepared by reacting a 5-chloro-6-bromo-benzimidazolium salt with ethyl ortho-formate to give a symmetrical dye or with a benzoxazole or benzthiazole having a reactive 2-(b -phenyliminoethylidene) group or a thiazolinium salt having a reactive 2-(b -anilinovinyl) group (in the presence of acetic anhydride) to give an unsymmetrical dye. A monomethine or merocyanine dye is prepared by reacting 1,3-diethyl - 2 - methyl - 5 - chloro - 6 - bromobenzimidazolium iodide with 1,3-dimethyl-2-methylmercapto - 5,6 - dichloro - benzimidazolium methyl sulphate or with 3-ethyl-5-acetanilido-methylene rhodanine respectively. The 1-position of the 5-chloro-6-bromo-benzimidazole nucleus may have a b -acetoxyethyl substituent. Specification 955,963 is referred to.
Patent GB-1373063-A (GB)
Title: Sound-absorbent panels
IPC: E04C2/36
Filed: 1972-03-08
Abstract: 1373063 Honeycomb-cored sandwich laminates AVIONS MARCEL DASSAULT-BREGUET AVIATION 8 March 1972 [9 March 1971] 10880/72 Heading B5N [Also in Division F2]  A sound-absorbent panel comprises a honeycomb structure 2 sandwiched between two surfaces 1, 5, at least one of which is porous, the walls 3 of the honeycomb cells being provided with openings 4 adjacent at least one of the surfaces of the panel. The surfaces 1, 5 and the structure 2 are of metal or porous plastics materials and are assembled to form a rigid panel by means of a suitable adhesive resin. A particular application is the lining of the air intake or exhaust of a jet engine, in which case as shown in Fig. 2, the openings 4 have their bases against a perforated skin 1 and an impervious sheet 5. This configuration combines acoustic advantages with facilities to drain stray, unwanted liquids, and also facilitates shaping in the case of curved panels. Although only a single sandwich is shown, it is possible to superimpose two or more layers. Other applications include the sound insulation of ventilation shafts and hot-air heating shafts, airport muffling devices, sound-deadening on industrial or public sites, and improving the acoustics of large rooms.
Patent GB-1396281-A (GB)
Title: Multicolour printing
IPC: B41F1/40
Filed: 1971-04-22
Abstract: 1396281 Intaglio printing surfaces; multicolour arrangements COLORFLO Ltd 27 April 1972 [22 April 1971] 10883/71 Heading B6C An intaglio printing plate 16, Fig. 6, of the kind in which different coloured inks are forced through the plate from distribution channels 40 on the back face, is sealed to a support plate 30 by a gasket plate 17; the gasket plate is provided with one or more ribs 38 and is formed with holes 36 which pass through the rib and right through the plate. The ribs have inwardly-sloping walls which correspond to the sloping walls of the channels 40. As shown, the gasket consists of a metal plate 35 and a rubber layer 31. The latter is formed with spigots 32 through which the holes 36 extend and which are aligned with the nozzles 28 of ink injector units 15. A sub-channel may be provided at the bottom of each channel 40 and each rib provided with a small projection which extends into the sub-channel, Fig. 10 (not shown). In the arrangement shown in Fig. 9, a distributer plate 50 in association with two gaskets 17<SP>1</SP>, 52 is incorporated between the printing and support plates. The plate 50. is provided with channels 54 and holes 64 for the distribution of the inks.
Patent GB-1469271-A (GB)
Title: Halographic arrangement and method for detecting irregular changes of shape of an object
IPC: G01B11/16
Filed: 1974-03-12
Abstract: 1469271 Holographically evaluating change of shape OPTO-PRODUKTE AG 12 March 1974 [13 March 1973] 10889/74 Heading G2J The irregular changes of shape of an object comprising a body of rotation 7 are investigated by the use of a conical mirror 20 arranged to reflect light from a laser 1, the light having a virtual source 14, on to the object. The diffuse reflected light is received at a plane 8 and holographically recorded. The geometric arrangement must be such that the virtual light source and an observation point 15 define a line and the perpendicular 16 to the median defines the axis of the object. Further, all reflected points 191 lie on an ellipsoid 18 the foci of which are defined by the points 14 and 15. Two such holograms when superimposed give interference lines indicative of irregularities in change of shape whilst regularities are suppressed.
Patent GB-513447-A (GB)
Title: Chair frames
IPC: A47C7/00
Filed: 1938-04-09
Abstract: 513,447. Furniture frames. BATES & SONS, Ltd., J. W., and BAILEY, N. J. April 9, 1938, No. 10969. [Class 52 (ii)] The invention comprise a chair frame as shown The upholstery forming the seat is supported by meta straps, webbing or spring: attached to the back rai 4 and the front rail 7, o: by two frames, one horizontal and having a limited forward and back ward sliding movement or the bar 7 and the othe: hinged to the back rail and to the back of the horizontal frame.
Patent GB-1386351-A (GB)
Title: Thermosetting resins
IPC: C08G63/54
Filed: 1972-03-09
Abstract: 1386351 Unsaturated polyester compositions CHEMISCHE WERKE ALBERT AG 9 March 1972 [10 March 1971] 11103/72 Heading C3P A thermosetting moulding composition comprises an unsaturated polyester having a molecular weight per double bond factor of from 250 to 400, a copolymerizable monomer containing a H 2 C=C< group, a copolymer of an alkyl ester of acrylic acid and an alkyl ester of methacrylic acid, a catalyst, and at least one organic or inorganic filler, both the unsaturated polyester and the copolymer being dissolved in the copolymerizable monomer. In the examples the compositions comprise unsaturated polyesters prepared from maleic anhydride, phthalic anhydride, 2,2 - dimethyl propane diol - 1,3, propane diol-1,2, isophthalic acid and ethylene glycol; styrene; copolymers of methyl methmethacrylate and butyl acrylate; t-butyl pervenzoate; calcium stearate, magnesium oxide, powdered limestone, dropped glass fibres treated with vinyl silane size and ground china clay. The compositions are cured into sheets.
Patent GB-1137895-A (GB)
Title: Improvements in or relating to solution mining
IPC: E21B43/29
Filed: 1967-03-10
Abstract: 1,137,895. Solution mining. KALIUM CHEMICALS Ltd. 10 March, 1967 [11 March 1966], No. 11361/67. Heading E1F. [Also in Division F2] In apparatus for developing a cavity in a subterranean formation as in solution mining a series of nested conduits 1 are placed inside a container 4 and lowered in a substantially upright position through a casing 5 to the cavity, the container including fluid supply and withdrawal conduits 6, 7. A removable door in the container wall allows the nest of conduits to fall through the hatch formed. when the valve 3 allows pressure solvent fluid from the conduit 6 to flow into and extend the nest of conduits into proxity with the wall of the cavity. Minerals in solution form extracted by the solvent are withdrawn from the cavity through a nozzle 32. The nest of conduits may, alternatively, be connected to the tubing 10 by a flexible hose Fig. 17 (not shown) and may be rotatable when the conduits are then provided on one side thereof with rows of holes (79), Fig. 22 (not shown) for the flow of extraction solvent and on the other side thereof with rows of larger holes (78) from which the flow of solvent acts as reactive jets to rotate and urge the conduits to the proximity of the extraction surface. The nest of tubes may be recovered from or jettisoned into the cavity, and withdrawal of solution may be made through a separate bore hole. End pieces to control the extension of the nest of conduits may be employed and consist of an end plate in the smallest of the conduits and having an orifice blocked by a resilient plug which, when the extension of the nest is prevented by contact with the cavity wall, is forced by the solvent through the orifice, further extension of the nest being accomplished by passing another plug to the nest; in an alternative arrangement, there is a spring-biassed head Fig. 20 (not shown) having ports therein and which in contacting the cavity wall is pushed rearwardly so that the ports register with ports in the conduit.
Patent GB-737173-A (GB)
Title: Improvements in or relating to loading mechanism of washing machines for bottles, jars, canisters and other hollow-ware
Inventor: DAWSON DAVID
IPC: B08B9/44
Filed: 1952-05-06
Abstract: 737,173. Endless conveyers. DAWSON BROS., Ltd. July 2, 1953 [May 6, 1952], No. 11369/52. Class 78 (1). A loading mechanism for washing-machines has a plurality of bottle lifting cams each of which lifts a bottle on to a feed board which positions the bottle and permits it to pass into the bottle carrier of the washing-machine. Bottles 4 fed by a conveyer 5 to spaced slat conveyers 2 are guided by a plough 6 and by cranked guides 8 which lead to V-shaped guides 10 and cammed lifting devices 9, between the slat conveyers, which feed the bottles onto a feed board 13 where they rest against a pivoted plate 14. The feed board is raised until a roller 16 thereon engages a projection 17 and retracts the plate 14, allowing the bottles to be deposited into cups 15 of an intermittently moving carrier of a washing-machine. For smaller bottles the width of the lane is reduced by providing guides 11 on the guides 8.
Patent GB-584012-A (GB)
Title: An improvement in or relating to ball or float valves
IPC: F16K33/00
Filed: 1945-06-15
Abstract: 584,012. Float-valves. CROWTHER, L. June 15, 1945, No. 11416/44. [Class 135] The ball or float a is attached to the lever b of a float valve, or a fitting c secured to the lever, by a means of a conical spigot d' which is drawn into engagement with a correspondingly shaped hole c<2> in the end of the lever b, or fitting c, by a nut e to allow of easy and rapid adjustment.
Patent GB-115165-A (GB)
IPC: D05B57/02
Abstract: 115,165. Wever, F. Aug. 16, 1917. Sewing-machines; needles, vibrating laterally; seams.-For forming ornamental zigzag or vandyke stitching in a zigzag or curved line as shown in Fig. 6, the needle-bar guide 25 is oscillated on a shaft 47 by connexion with a cam-actuated lever 10 which is pivoted on a shaft 29 carried by a second cam-actuated lever 35 oscillating about a shaft 36. The cam 6 for oscillating the lever 10 is driven from the main shaft and drives, through gearing, the cam 34 for the lever 35, the gear ratio and the form of the cams determining the design of the work. The cain 34 may be disconnected from its driving gear and held stationary when a straight line of stitching is required. The shaft 36 may be connected to a shaft 61 which has an arm 62 connected by a link 63 to the joint of the two-part actuating bar 64, 65 of the looper to cause the latter to follow the sideways movements of the needle-bar guide in forming the pattern. Trimming or cutting.-The trimming mechanism follows the line of stitching. The ledger blade 58 is carried by an arm 57 secured to the shaft 47. The upper blade 52 is carried by an arm 51 secured to an axis 48 mounted in a boss on the arm 46 on the shaft 47. The blades are held up to the work by a spring bearing on the end of the axis 46, and the arm 51 as actuated by an eccentric on the main shaft.
Patent GB-1299633-A (GB)
Title: Automatic switching device for a battery standby power supply system
IPC: H02J9/06
Filed: 1970-03-11
Abstract: 1299633 Standby power supply systems UNION CARBIDE CORP 11 March 1970 [11 March 1969] 11563/70 Heading H2H A switching device for transferring the power supplied to a load L from a battery W.B. to a standby battery S.B. comprises a first, normally conductive, transistor switch Q1, a second, normally non-conductive transistor switch Q2 and a control 30 responsive to the voltage of the battery W.B. for reversing the states of the switches when the voltage across the battery W.B. falls below a predetermined level. Initially, when the battery W.B. is fully charged it maintains a transistor Q3 in the control, and therefore the transistor Q1, conductive to connect the battery W.B. across the load. When the voltage of the battery W.B. falls below the predetermined level, a transistor Q4 in the control becomes forwards biased so that the transistor Q2 becomes conductive and connects the standby battery S.B. across the load, whilst the transistor Q3 becomes reverse biased to disconnect the battery W.B. from the load. A pointer of a meter 20 indicates which battery is supplying the load.
Patent GB-690624-A (GB)
Title: Gas fired boiler conversion unit
Inventor: ANDREW LESLIE WALTER
IPC: F24H9/18
Filed: 1950-05-10
Abstract: 690,624. Convertible gas and solid fuel stoves. NORTH THAMES GAS BOARD. Aug. 9. 1951 [May 10, 1950], No. 11662/50. Class 126 A gas-fired unit for heating a boiler normally heated by combustion of solid fuel comprises a radiant structure adapted to be placed in the fire space and to accommodate a removable burner tube in such a position as to heat the radiating surfaces of the unit. The unit comprises a rectangular sheet metal base and two trapezoidal ends 2, the base having an air inlet slot 3 and channels 4 at its long edges to receive two expanded metal frets 5. A detachable gas burner 6 of the poker type is housed in apertures in the end walls 2. Shaped sections 7 of insulating brick deflect the horizontal flames from the burner tube 6 into tapered flue-ways between frets 5 and a trough shaped insulating brick 8 mounted above the burner tube. The unit is placed in the fire space and the burner is lit outside and inserted through the hole provided in the boiler door for a gas poker, or through a specially drilled hole. The unit is wider at the top than at the bottom, so that rising combustion products diverge as they pass towards the top of the structure.
Patent GB-165278-A (GB)
Title: Improvements in or relating to petrol tanks
IPC: B64D37/32
Filed: 1920-04-28
Abstract: 165,278. Thompson, W. P., (Ross, W.). April 28, 1920. Tanks. - In order to minimize the risk of fire when the petrol tank of an aeroplane for instance springs a leak or is pierced by an incendiary bullet, the tank 1, Fig. 1, is surrounded by a casing 5, Figs. 1 and 2, and within the space so formed is circulated, at a pressure above that of the fuel in the tank, a non-combustion supporting agent, such as pyrene, which will mix with petrol. The duplicated circulating system consists of. a pump 6 driven from the engine shaft 7 through a clutch 20, Fig. 4, which may be adapted to engage only when the pressure in the pipe 21 communicating with the fuel tank drops on leakage taking place, feed pipes 9 having non-return valves 10; outlet pipes 11, 15 with adjustable check valves 19, 18 by which the pressure in the jacket may be regulated, and receptacles 12, 16 from which the liquid is returned to the pump. An auxiliary hand-pump 24 may also be provided to force a supply of the non-combustion agent directly into the fuel through a series of pipes 21<1> having perforations 22.
Patent GB-887786-A (GB)
Title: Arrangement for securing an article by means of a pin and an elastic perforated and radially slotted washer
IPC: F16L3/237
Filed: 1960-04-04
Abstract: 887,786. Bolt-like pins. GOBIN-DAUDE. April 4, 1960 [April 14, 1959], No. 11778/60. Class 89(1). A bolt-like pin 1, Fig. 1, with a screw or nail end 2 for driving into a wall &c. has an integral collar 3 to limit penetration, and is knurled or otherwise roughened and then casehardened. The knurls &c. are to grip the fingers 9, Fig. 3, of a sheet-metal fastener 6 having an aperture 7 with radial slots 8 forming the fingers which are bent outwards, from the fastener.
Patent GB-506719-A (GB)
Title: Improvements relating to aircraft undercarriages
IPC: B64C25/10
Filed: 1937-11-29
Abstract: 506,719. Aircraft alighting gear. GENERAL AIRCRAFT, Ltd., WILLIAMS, D. L. H., and CROCOMBE, F. F. Nov. 29, 1937, No. 11795/39. Divided out of 506,527. [Class 4] In an aircraft which includes alighting-gear having nose and main elements disposed respectively, forwardly and rearwardly of the centre of gravity of the aircraft so that when resting on the elements, the tail of the aircraft is maintained clear of the ground, the nose element is retractable wholly or partly into the fuselage by being moved in a substantially vertical direction. As shown, a castoring or steerable and castoring nose wheel 13 is carried by a shock-absorber 16, 17. The shockabsorber is connected to the aircraft by parallel links 18, 19 and the wheel is retracted on operation of a jack 27 disposed diagonally across the parallelogram. The castoring may be restrained.
Patent GB-940986-A (GB)
Title: Improvements in fluid operated pressure applying devices
IPC: B23K11/31
Filed: 1961-03-30
Abstract: 940,986. Welding by pressure. M. H. WOLFBAUER. March 30, 1961 [March 31, 1960], No. 11801/61. Addition to 930,441. Heading B3R. A pressure-applying device employing a fluidoperated drive comprising two elements, one a piston, for applying pressure through a tip carried by one of the elements has a base and cam roller and track means connecting the drive and the base to allow reciprocation of the drive relative to the base. A spot-welding machine comprises a base 10 having a bar 12 carrying an upright member 13 with a horizontal closed slot 14 therein and a pair of spaced plates 16 each having an upper open slot 17 formed between legs 18, 20 and an angled closed slot 22. A fluid pressure cylinder 28 has a double piston 25 carrying a rod 24 on which is mounted one welding electrode 46 and a yoke 30 secured to the front end of the cylinder carries the other electrode 36. A pair of rollers 38 carried on the yoke engage the slot 22, a roller 40 carried on the rear end of the cylinder engages the slot 14 and a pair of rollers 52 carried on the piston-rod 24 may engage the slot 17. A pair of adjustable springs acting in opposition and arranged sideby-side in a casing 56 act between the yoke 30 and the member 13 to control the position of the centre of contact of the electrodes. In operation with the apparatus in welding position, see Fig. 1, air is admitted to the cylinder entry 65 to move the piston to the right and the cylinder to the left, thus opening the electrodes, see Fig. 2. The roller 40 moves to the end of slot 14, the rollers 38 move to the ends of the horizontal parts of slots 22 and the rollers 52 ride along the upper surface of legs 18 until they engage the legs 20, thus limiting the horizontal travel of the piston. Continued pressure in the cylinder causes it to pivot about the roller 40, the rollers 52 riding down the slots 17 and the rollers 38 riding down the angled parts of slots 22 into the position shown in Fig. 3. A screw may be provided in the bottom of the near vertical portion of slot 22 to allow adjustment of tipping amount.
Patent GB-204301-A (GB)
Title: Improvements in or relating to receiving-circuits for wireless telegraphy, wireless telephony and like purposes
IPC: H03F3/48
Filed: 1923-05-02
Abstract: 204,301. Grimes, D. Sept. 19, 1922, [Convention date]. Thermionic amplifiers and detectors.-In order to equalise the load on each valve of a multivalve set using combined high and low frequency amplification, the low-frequency components from the detector valve 4 are led back first to the valve 3 through a transformer 10, next to the valve 2 through a transformer 9, and finally to the first valve 1 through a transformer 8. The loud speaker 11 is inserted in the plate circuit of the valve 1. The amplification of the low-frequency currents therefore increases in stages from valve 4 to valve 1, whereas high-frequency amplification increases progressively from valve 1 to valve 4, so that the total current passed by each individual valve is more or less evenly distributed. Separate high-tension batteries 13, 14 feed the plates of the rectifier 4 and amplifiers 1 - - 3 respectively, whilst a potentiometer 15 enables the grid voltages of valves 2 and 3 to be separately adjusted. Fixed condensers 23 - - 29 by-pass radio-frequency currents whilst 'blocking the passage of audio-frequency components. The arrangement also minimizes the effect of external low-frequency disturbances owing to the fact that there is only one stage of audio-amplification between the aerial and the loud speaker.
Patent GB-709731-A (GB)
Title: Improvements relating to gas turbines and applications thereof
IPC: F02C3/06
Filed: 1951-05-22
Abstract: 709,731. Jet propulsion . plant. GALLIOT, JAN GALLIOT, L. A., and GALLIOT, G. F. N. May 20, 1952 [May 22, 1951], No. 11891/51. Class 110(3). [Also in Group XXXIII] A jet propulson plant comprises an axial-flow compressor 23 mounted on a vertically extending turbine rotor shaft and feeding air in a downward direction to a centrifugal compressor 26 mounted on the same shaft, combustion chambers 25 disposed around said shaft between the centrifugal compressor and the turbine blades and a reaction device 31 adapted to deflect the turbine exhaust gases downwardly with a helicoidal motion, the arrangement being such that the gas pressure, the pressure within the axial-flow compressor and the pressure of the exhaust gases exert an upward thrust upon the turbine blades, the turbine shaft and the turbine respectively. The exhaust gases are fed through ducts 28, a manifold 29 and two outlet pipes 30 to the reaction devices 31. A deflector is rotatably secured to each reaction device and comprises a scoop-shaped wall 37 and a Triangular-shaped grating, Figs. 3 and 4 (not shown). Alternatively. the deflector is fixed to the reaction device and the plant is provided with auxiliary deflectors. The turbine may also drive a power shaft through suitable reduction gearing. Specifications 389,469, 606,478, 608,465, 650,255 and 663,893 are referred to.
Patent GB-1413579-A (GB)
Title: Oil water separator
IPC: C10G33/06
Filed: 1973-03-13
Abstract: 1413579 Apparatus for separating oil and water BRUNSWICK CORP 13 March 1973 [17 March 1972] 11914/73 Heading B1D An oil-water separator comprises vertically abutting chambers 22, 26, 28, 30 through which the mixture flows in series from inlet 24, the lower chambers each enclosing a coalescing element 42, 64, 66 through which mixture flows outwards to reach the chamber proper, lowest chamber 30 having a water outlet 70 and all chambers having upper oil outlets. As shown, oil outlets 56, 82 are controlled by valves, and outlets 72, 74 return the oil from the lower chambers to aspirator 78 in inlet 24, by which the oil is broken up and recycled. The coalescing element 64 in chamber 28 may have a pore size of 20 microns and elements 42 and 66 may have pores of 40 microns. The elements can comprise concentric windings of nylon and polypropylene multifilament yarn. Alternatively (Fig 2, not shown) several fibres are wound together in a plurality of layers on a perforate spool, some fibres being crimped and/or loose and others tight to control density. Or sintered sheet material of stainless steel fibres is wound on a perforate tube (Fig. 4, not shown).