baber/WOPTO huggingface dataset:
Patent GB-676692-A (GB)
Title: Improvements in and relating to surface meters
Inventor: REASON RICHARD EDMUND
IPC: G01B7/34
Filed: 1949-04-04
Abstract: 676,692. Electrical measurement of surface roughness. TAYLOR, TAYLOR & HOBSON, Ltd. June 13, 1950. [April 4, 1949] No. 9096/49. Class 40 (i). Apparatus for determining the average roughness of a surface by integrating a function of the height of the irregularities over a given time contains means for interlocking the length of traverse with means for maintaining the product of time and response at a constant value, so that the reading on a meter indicates the average roughness. A pick-up head 8 (Fig. 1) carrying a stylus 4 moving over the surface 2 to be examined, is attached to a shaft 7 which is restrained by a spring 9. The extent of the traverse is determined by the position of a cam 18 which can be raised or lowered by a shaft 21, and which bears against a lever 13 attached to the shaft 7. The output from the pick-up 8 is taken through an amplifier 25 to an integrating meter 27. Contacts B, C, F are associated with the cam 18 so that at the beginning of a cycle a D.C. bias is impressed on the meter 27 to produce a zero reading, and at the end of the cycle the meter is shortcircuited via terminals CB. In a modification (Fig. 2 not shown), the shaft 7 is driven directly by the motor 20 through gears chosen by a control member 39, the length of traverse being also determined by the position of the control member 39. In a further modification (Fig. 3) wherein the velocity of travel of the shaft 7 is fixed, the control member 39 controls simultaneously the lengths of traverse, the sensitivity of the meter 27, by adding a shunt 54, and the cut-off frequency of the amplifier, by the addition of a filter 56. Specification 539,272 is referred to.
Patent GB-1058626-A (GB)
Title: Boroxines and preparation thereof
IPC: C07F5/04
Filed: 1964-03-04
Abstract: Hydrocarbonoxy boroxines are prepared by reacting boric oxide and a borate of the formula B(OR)3, where each R is a monovalent hydrocarbon radical of up to six carbon atoms, in contact with 1.9-3.5% water based on the weight of the boric oxide at between 125 DEG  C. and the decomposition temperature of the borate.  The water may be present in the boric oxide crystals. The preferred temperature is from 140-200 DEG  C.  Examples describe the preparations of boroxines wherein R is methyl, n-propyl, isopropyl, n-butyl, cyclohexyl, allyl, cyclohexenyl and phenyl.
Patent GB-626393-A (GB)
Title: Improvements relating to air and steam brake apparatus for railway and like vehicles
IPC: F16N27/00
Filed: 1947-04-08
Abstract: 626,393. Lubricators. DAVIES & METCALFE, Ltd., and METCALFE, R. April 8, 1947, No. 9287. [Class 12 (iii)] In a steam or compressed air brake, means are provided whereby a predetermined amount of lubricant is introduced into the brake cylinder or the supply pipe leading thereto, at each brake application. In Fig. 1, a piston d is slidable in a passage i connected to a chamber a containing lubricant and to a branch h which leads to the brake cylinder. When the brake is released the piston is positioned as shown in which the chamber a supplies an annular chamber e through gaps f in the piston, but when the brake is applied, the piston is lifted by the steam pressure so that the lubricant in chamber e discharges through the outlet A and at the same time the part c of the piston closes the passage b. In another form, Fig. 3, a cam-plate k secured to the control handle j of the brake actuates a piston p which controls the supply of lubricant from a chamber a through a pipe t to the steam supply pipe u of the brake. When the brake is applied, the parts are in the position shown so that a passage q is open to the chamber a but is closed at the lower end by a ball-valve v under the action of the steam pressure in the pipes t, u. When the brake is released, the piston p is moved by the cam m to cut off the passage q from the chamber a and the ball-valve v falls to a lower position to permit the lubricant in the passage q to flow through passages s to the pipes t, u and the brake cylinder. In a further form, Fig. 6, when the brake is released, the plunger p of a pump is held by a spring in the position shown in which a passage r is uncovered to allow flow of lubricant from chamber a to the pump chamber x. When the brake is applied, the plunger, under the action of the cam m covers the passage r and then forces the lubricant from the chamber x past a ballvalve y and through the pipe z to the steam supply pipe of the brake cylinder.
Patent GB-125961-A (GB)
Title: Improvements in or relating to Discharge Apparatus for Tanks for Fluids.
Inventor: OS DANIEL HENDERICUS VAN
IPC: B67D7/32
Filed: 1919-04-11
Abstract: 125,961. Os, D. H. van. Feb. 15, 1918, [Convention date]. Fluid-actuated valves.-An apparatus for discharging liquids from closed containers by admitting a neutral gas under pressure has the discharge pipe preferably at its highest point provided with a valve-controlled aperture 6 which is automatically opened when the gas pressure fails so as to prevent a continued flow of liquid. The neutral gas enters by a pipe 5 and passes to the gas space through a restricted aperture 8 above a diaphragm valve 10. This valve normally engages a seat 11, but should the pressure fail, it lifts to open communication between the discharge pipe 3 and gas space of the container through apertures 9, and thus prevents further discharge.
Patent GB-351418-A (GB)
Title: Improvements in door fastening devices
IPC: D06F37/10
Filed: 1930-03-24
Abstract: 351,418. Fastenings for hinged doors. LORD, F. M. and WHITAKER, Ltd., R. G., Ceres Road, Kingston-on-Thames. March 24, 1930, No. 9321. [Classes 44 and 65 (ii).] The door of a rotating drum is provided with hinges comprising quadrilateral eyes 6, formed on the ends of the end brackets of the door 8 which embrace cams 5 on a shaft 4. The door is fastened by rotation of the shaft 4 whereby the cams 5 actuate the eyes 6 to give the door a sidewise movement and engage the door edge 14 in the locking channel 13. The shaft 4 is mounted in bearing brackets fixed to the drum and is operated by a lever 16 which is retained close against the drum, while the latter is in motion, by a spring catch 17. The door is supported while in its unfastened position by an extending lip 15. An adjustable wall 9 is provided in each of the slots 6.
Patent GB-459120-A (GB)
Title: Improvements in and relating to clarification or sedimentation treatment of liquids
IPC: B01D21/18
Filed: 1935-03-26
Abstract: 459,120. Gravity-separation apparatus. TALBOT, H. J., 164, Paul Gabrielstraat, - The Hague, WEISS, R. G. A., 7, Oranjelaan, Wassenaar, Holland, and DORR-OLIVER CO., Ltd., Abford House, Wilton Road, London. March 26, 1935, No. 9371. [Class 111] Sludge scrapers for a settling- tank are supported from a rotatable main carrying arm by means which provide a rigid driving connection, but such that the scrapers can be raised from their working position to a position above the normal liquid level. As shown in Fig. 2, scrapers 21 are fixed to auxiliary bracedframes 31, which slide vertically, guided by rollers on a main braced carrier frame 22. The scrapers are raised by means of winches 32 with cables connected to the lower part of the frames 31. The frame 22 is supported at the periphery of the tank by a track 25 and at the centre by a platform 16 on vertical supports 15 which form a cage surrounding the end of a pipe 19 through which liquid is supplied to the tank. The moving parts are rotated from an electric motor 27 connected by reducing gear to an internal spur wheel at the centre of the frame 22. A vertically adjustable wind-screen is associated with each arm of the frame 22. In the modified form of apparatus shown in Fig. 7, each auxiliary frame 31 is supported on pivots 66 in a depending portion 161 of the main carrier frame 71, so that it can be drawn up by means of a winch 113 and a cable 110 to the position indicated by dotted lines. The frame 31 is locked with the scrapers in operative position by means of pins 119 passing through lugs on the frames 31, 71. A counterweight 123 is connected by arms 104 to the frame 31. A wind-screen 35 is adjustably supported on the arms 104.
Patent GB-489877-A (GB)
Title: Improvements in or relating to steam power plant
IPC: F01K1/04
Filed: 1937-04-02
Abstract: 489,877. Steam power plant. RUTHS INTERNATIONAL ACCUMULATORS, Ltd. April 2, 1937, No. 9420. Convention date, April 4, 1936. [Class 110 (iii)] Turbine plant comprises steam accumulators operating at pressures above 60 atmos. Steam generators 1, Fig. 3, supply steam to a turbine 2. The steam passes through a heater 4 in which steam is generated and delivered to a high-pressure accumulator 5. Steam taken from the accumulator passes through a pressurereducing valve 10 and a superheater 11 and mixes with the boiler steam in passing to the turbine. High-pressure generators 21, Fig. 4, deliver steam directly to three accumulators in series 25, 26, 27 and to a back-pressure turbine 23. Both discharge to a low-pressure steam line associated with low-pressure generators 22 and a condensing turbine 24.
Patent GB-540865-A (GB)
Title: Improvements relating to bearings
IPC: F16C33/10
Filed: 1940-05-30
Abstract: 540,865. Bearings. GLACIER METAL CO., Ltd., BOYLE, W. R., and BATE, J. May 30, 1940, No. 9488. [Class 12 (i)] A shaft bearing comprises a bearing surface of sintered material in contact with and secured to a lubricant reservoir, forming a sealed self-contained unit. A sleeve 1, Fig. 1, has a tight fit with or is soldered or welded to a flanged sleeve 2 to form a reservior 6, sleeve 2 having apertures 7 leading to a porous sintered metal liner 4. Sleeve 1 may have a plug for filling the space 6 and sealing it. The shaft 5 may have a sleeve keyed thereto and the sleeve 2 may be secured by end washers threaded into sleeve 1. The end flanges 3 may be formed on sleeve 1 by spinning or pressing so as to enclose sleeve 2 and liner 4. In a modification sleeves 1, 2 are replaced by two angled pressings secured together. Sleeve 2 may be dispensed with and sleeve 1 with end flanges formed by a pressing in one piece or in two parts secured together. The lubricant reservoir may be keyed to the shaft to rotate with it. They may be formed by channels 51, Fig. 9, in pressings 52 rivetted together and sealed by plates 59. External channels are formed to receive a sintered bush 56. The pressings may be placed oppositely and the plates 59 dispensed with. The reservoir may have a thrust face to engage a collar on the shaft, or it may be recessed to receive a sintered bronze washer. The washer 83, Fig. 12, may have a steel back 84 with annular oil reservoirs 85, 86.
Patent GB-931903-A (GB)
Title: Improvements in or relating to flight training apparatus
Inventor: SHELLEY MEVILLE LESLIE
IPC: G09B9/30
Filed: 1961-03-15
Abstract: 931,903. Grounded flight trainers. COMMUNICATIONS PATENTS Ltd. March 8, 1962 [March 15, 1961], No. 9493/61. Class 4. Flight training apparatus includes a lighting unit (not shown) for providing general illumination of a representation 10 of an object, a television camera 12 for viewing a part of the representation along an optical axis, means for providing relative movement between the optical axis and the representation in accordance with the simulated heading of an aircraft, and an auxiliary lighting unit movable with the optical axis for providing foreground illumination of the viewed part of the representation. In Fig. 1, relative displacement between the camera 12 and the representation 10 of an airfield is effected by servomotors 11, 14, 15, and the camera is rotatable by servomotor 16 and gears 21, 22, to accord with aircraft heading changes, the camera viewing the representation through a reflecting prism 13. The general illumination is provided by a multiple light source unit above the camera and of area about the same as that of the representation. The shadow cast by the camera, most prominent when simulated altitude is low, causes an unacceptably low level of illumination for television reproduction, especially in the foreground of the field of view. The auxiliary lighting unit 20, having twelve four watt fluorescent lamps is therefore fixed to the camera so as to lie over the optical axis of the camera, as reflected in prism 13. The lamps are fed from a three phase supply to reduce flicker and resultant stroboscopic effects. The lamps are mounted in front of a plane reflector to produce uniform foreground illumination to simulate daytime landing and take-off. For simulated night operations, the general illumination is switched off, the auxiliary lighting simulating that provided by an aircraft's landing lights. The plane reflector may be replaced by one shaped to provide areas of illumination to left and right of the simulated line of flight. Alternatively, the auxiliary lighting may be provided by tungsten filament lamps, especially when the general illumination is by quartz-iodine discharge lamps. Two narrow beam tungsten filament lamps, of the integral reflector bulb type may be adjustably mounted on the camera to simulate aircraft landing lights, Fig. 3 (not shown). The representation 10 may have lights simulating airfield lights.
Patent GB-345814-A (GB)
Title: An improved method of constructing the handles of kettles and other vessels
IPC: A47J45/06
Filed: 1930-03-25
Abstract: 345,814. Kettle &c. handles. WOLCHOVER, S., 449, Bethnal Green Road, London. March 25, 1930, No. 9534. [Class 66.] A kettle &c. handle comprises a channel-shaped grip portion 4, Figs. 1 and 7, formed with lateral ribs which are engaged in channels 5 formed by folding the edges of a sheet metal strip 1, the end portions of the strip, on which are formed the attachment lugs 11, being bent downwardly over the curved ends of the grip portion to hold it in position.
Patent GB-232253-A (GB)
Title: Improvements in parachutes
IPC: B64D17/00
Filed: 1925-04-14
Abstract: 232,253. Th÷rnblad, A. R. April 12, 1924, [Convention date]. Parachutes are provided with a damping member in the form of a conical bag embracing the lower portion of the shroud lines and secured to some or all of them. The apex of the cone and the lines are secured to a casing in which the parachute is packed. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the two constructions following. In one arrangement a triangular flap is provided secured at its apex to the packing member and at its base to the harness. In the other, four flaps, 7, Fig. 2, (Cancelled) are secured together along their inner edges and attached at their outer edges to the lines 2. A top 8 may be provided connected to a string 10 for regulating the speed of descent. This subjectmatter does not appear in the Specification as accepted.
Patent GB-380740-A (GB)
Title: Improved method of influencing an electric current by radiation
IPC: H01J40/16
Filed: 1932-04-04
Abstract: 380,740. Discharge apparatus. NAAM. LOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. April 4, 1932, No. 9613. Convention date, April 4, 1931. [Class 39 (i).] A tube has a cold cathode consisting of two or more spaced parts and containing a gas or vapour the atoms of which can be in a metastable condition, and the gas &c. near one part of the electrode is subjected to radiation by light containing frequencies adapted to be absorbed by the metastable atoms, so that the conductivity of the discharge path near that part decreases and the discharge is transferred to the other part or parts. As shown, the cathode consists of two semicircular discs 5, 6. The potential between the part 5 and the anode 2 is made greater than that between the part 6 and the anode by inserting a resistance 15 in the circuit of the part 6, or by mounting the part 5 nearer the anode. The transference of the discharge from the part 5 to the part 6 due to radiation by light from a lamp 16 produces a reading in an ammeter 14. The filling may be neon at a pressure of 20 millimetres, and a small quantity of gas or vapour having a lower ionization potential, for example 0À001 per cent of argon, may be added. The device may be used -in apparatus for registering the number of persons passing a given point.
Patent GB-1429082-A (GB)
Title: Image formation by powder development
IPC: H05K3/10
Filed: 1973-02-27
Abstract: 1429082 Photographic processes NITTO ELECTRIC INDUSTRIAL CO Ltd 27 Feb 1973 9634/73 Headings G2C and G2X Powder images are produced by imagewise exposing to visible or ultraviolet between 40 and 120‹C a photo-sensitive layer of a rubber which decomposes at the initial exposure to become tacky but on further exposure cross links and loses tackiness and powder developing to produce a negative image for short exposures and a positive image on further exposure. The layer preferably contains a sensitizer e.g. benzophenone or sodium dimethylthiocarbamate and may be admixed with another polymer such as vinyl polymer, acrylonitrile/butadiene copolymer, phenol/aldhyde resins, coumerose, pinene or petroleum resins or polyurethanes. The photosensitive rubber may be a natural or synthetic rubber. The supported layer is imagewise exposed, optionally through the support (Example 6) and developed with a pigmented powder, e.g. graphite. The image may be sharpened by immersing the material in a 5% aqueous solution of sodium alkyl benzenesulphonate, dioxan or other polar organic solvent, an aqueous or alcoholic alkaline solution optionally with ultrasonic vibration to remove the non-powdered areas and leave a positive powder image. Alternatively, a negative latent image may be dusted with Cu powder, uniformly exposed so that the unexposed areas cross-link and are non-tacky treated with a Cu electro-plating bath to produce a copper plated image useful in printed circuits (of Example 14). If a hydrophic powder (e.g. water-soluble polyvinyl alcohol) is used for development, a lithographic plate is produced. If the positive image is placed in contact with a receptor sheet under pressure, a positive image is produced on the receptor and a negative image left on the original support.
Patent GB-610136-A (GB)
Title: Degradation of aromatic linear polyesters
IPC: C08J11/00
Filed: 1946-03-28
Abstract: Aromatic linear polyesters obtainable by heating glycols of the series HO(CH2)nOH, where n is greater than 1 but not greater than 10, with terephthalic acid or with an ester-forming derivative of the acid, for example an aliphatic or aryl ester or half-ester, an acid halide or an ammonium or amine salt, are p  degraded by heating with the glycol used in the manufacture of the polyester or with a terephthalate of the glycol or a low molecular weight polyester formed from the terephthalate.  The heating is continued until a homogeneous fluid results, preferably at a temperature about the boiling point of the glycol used, and at atmospheric or elevated pressures.
Patent GB-1416391-A (GB)
IPC: G01B5/00
Filed: 1973-02-27
Abstract: 1416391 Gauging and sorting workpieces M POSSATI [trading as APPARECCHI ELETTRONICI MARPOSS] 27 Feb 1973 [3 March 1972] 9654/73 Heading GIM A machine for measuring the dimensions of a plurality of similar but different sized workpieces, e.g con-rods 11, 12 fed in random sequence on a conveyer 14 has a gauging unit 23, 24 which gauges and so identifies the size of each workpiece in turn and a measuring unit 26 having measuring means whose position is controlled by the output of the gauging unit 23, 24. In the illustrated embodiment, two pairs of plug gauges 31, 32 and 33, 34 are reciprocated by piston/cylinder arrangements 38, 39 and 53, 54,one pair 31, 32 matching the positions of the apertures in one size of con-rod 11, and the other pair 33, 34 matching positions of the apertures in another size of con-rod 12. Nucio switches 47 and 62 are actuated in accordance with whether any one of, both of or neither pair of plug gauges can enter the apertures in a particular workpiece the outputs of the micro-switches being fed to a control unit 66 and used to determine the relative positions of two plugs 71,72 each having feelers 74 coupled to position transducers, which measure the diameters of the apertures in the con-rods. The plug 71 is fixed and the plug 72 mounted eccentrically on a shaft 79 which can be rotated by a motor 88 coupled with the control unit 66 in order to space the plugs 71, 72 according to the size of workpiece identified by units 23, 24. Alternatively the plug 72 can be movable linearly in a guide relative to plug 71 to this end If both pairs of plug gauges 31, 32 and 33, 34 enter or both fail to enter a con-rod, that con-rod is rejected at 68 as faulty.
Patent GB-1442092-A (GB)
Title: Process for making styrene polymers
IPC: B21C37/04
Filed: 1974-03-04
Abstract: 1442092 Photodegradeable styrene polymer compositions and foams ARCO POLYMERS Inc 4 March 1974 [5 April 1973] 9694/74 Headings C3C and C3P Photodegradable compositions comprise (1) a polymer of an alkenyl aromatic monomer having incorporated therein (2) a polynuclear hydrocarbon or substituted hydrocarbon having at least one benzylic methylene group in one of the rings. The polymer may be derived from styrene, vinyl toluene, isopropyl styrene, t-butyl styrene, α-methyl styrene or chloro-styrene, optionally with butadiene, acrylonitrile, alkyl acrylates or methacrylates or maleic anhydride. The hydrocarbon may be acenaphthene, fluorene, 2,3-benzofluorene, 9,10-dihydroanthracene or 1,2-benzofluorene. The hydrocarbon may be incorporated by adding to an aqueous suspension of the polymer which may be stabilized, e.g. with tricalcium phosphate and an anionic surfactant, and heating to impregnate the polymer. A blowing agent, e.g. an aliphatic hydrocarbon, may be incorporated during or prior to the impregnation, and the products expanded to form foams. In examples polystyrene beads are suspended in aqueous media in the presence of calcium triphosphate and sodium dodecylbenzene sulphonate, impregnated with n-pentane together with (I) fluorene, (II) 9,10-dihydroanthracene and (III) acenaphthene, and the beads aere pre-expanded and then moulded into foamed strips.
Patent GB-1491413-A (GB)
Title: L-3-(3,4-dihydroxyphenyl)-2-methyl-alanine peptides
IPC: C07C231/02
Filed: 1976-03-11
Abstract: 1491413 L - 3 - (3,4 - dihydroxyphenyl) - 2- methylalanine derivatives BOEHRINGER MANNHEIM GmbH 11 March 1976 [12 March 1975] 09735/76 Heading C2C [Also in Division C3]  N - chloroacetyl - L - 3 - (3,4 - dihydroxyphenyl) - 2 - methylalaninemethylester is prepared by the reaction of chloroacetyl chloride and L - 3 - (3,4 - dihydroxyphenyl) - 2 - methylalaninemethylester, and hydrolysis with sodium hydroxide yields N - chloroacetyl - L- 3-(3,4-dihydroxyphenyl)-2-methylalanine. N - benzyloxycarbonyl - L - 3 - [3,4 - di - (benzyl oxycarbonyloxy)phenyl]- 2 - methylalanine is prepared by the reaction of L-3-(3,4-dihydroxyphenyl) - 2 - methylalanine with benzyl chloroformate, which is treated with IN aqueous sodium hydroxide to yield N-benzyloxycarbonyl- L-3-(3.4-dihydroxyphenyl)-2-methylalanine.
Patent GB-182223-A (GB)
Title: Improved means for adjusting casement and other curtains and the like
IPC: A47H5/06
Filed: 1921-04-01
Abstract: 182,223. Morgan, W. J., Stallard, A. J., Evans, T., and Morgan, D. April 1, 1921. Curtains, drawing and suspending.-Curtains are suspended from rings 2 which slide upon a casing 3 and have tongues 8 which pass through a longitudinal slot 7 in the casing and engage a screw-threaded member 6, rotatably mounted in bearings 5 on brackets 4, which carry the casing 3. The screw-threaded member 6 is provided with right and left handed threads extending on each side of the centre, and has a plain part 6b at each end, the length of which is less than the combined width of the rings so that one ring is always in engagement with the screw-threaded member, which is rotated in either direction by oppositely-wound ends 10. The threaded member 6 may be replaced by a helical coil of stiff wire.