baber/WOPTO huggingface dataset:
Patent GB-114691-A (GB)
Title: Improvements in Fireplaces.
IPC: F24B1/193
Filed: 1917-05-08
Abstract: 114,691. McCallum, T. S., and Musto, F. May 8, 1917. Grates. - A separate grate or fire-box A, which may be open or closed, is adapted for external attachment to the front bars of an ordinary grate as shown in Fig. 4, or to be placed within it as shown in Fig. 5, being formed with a flat base and fitted with suspension hooks or arms, which may be pivoted or fixed. The air supply can be regulated by a plate or plates adjustable in front of the upper or lower portions, or both, such a plate being adapted also for use as a shelf J in front. A rearwardly-extended adjustable plate H, with an opening therein, is fitted over the top. Side and rear openings may be provided to register with the oven and boiler flues when the fire-box is in use within the ordinary grate. The lifting and adjustment of the fire-box may be effected by means of handles, or mechanically by the crank-handle R and gearing shown in Fig. 12 operating on the pivoted suspension arms F.
Patent GB-1460728-A (GB)
Title: Otpical density measurement
IPC: G01N21/85
Filed: 1973-02-09
Abstract: 1460728 Measuring the organic matter content of a sample NATIONAL RESEARCH DEVELOPMENT CORP 29 Jan 1974 [9 Feb 1973] 6568/73 Heading G1A A modulated beam of light from a mercury lamp 2 controlled by an oscillator 3 is directed via a sample tube 6 through which flows fluid whose organic content is to be determined. The resultant light beam is split up by a dichroic mirror 7 which reflects visible light via a visible light filter 8 on to a detector 9 and ultraviolet light, which is absorbed to some extent by organic matter, on to a detector 10. The detectors output signals are amplified in preamplifiers 11 and 12 and are supplied via eletronic switches 13 and 14 controlled in synchronism by the oscillator 3 to a pair of rejection filters 15 and 16. The signals from the filters 15 and 16 then pass via a dual logarithmic amplifier 17; a subtraction circuit, and a gain and zero setting stage 19 to a digital meter 20 on which the organic content of the sample is measured. An output representing the amount of solid suspended matter in the sample which would cause a superimposed "noise" signal on the detector output signals is obtained by taking the output of the rejection filter 15 and demodulating it in a demodulator 21. The resulting signal is passed via a logarithmic amplifier 22 to one input of a subtractor 23 together with an output from the dual logarithmic amplifier 17. The result can then be processed by a further gain and zero setting stage and displayed on a meter to indicate the solid matter content of the fluid.
Patent GB-159761-A (GB)
Title: Improvements in engine stop gear
IPC: F01L1/00
Filed: 1920-02-04
Abstract: 159,761. Boulton & Paul, Ltd., and Ffiske, G. E. Feb. 4, 1920. Stop-gear. - In float apparatus for indicating the oil level in an oil chamber or crank casing of an internalcombustion engine and provided with means for short-circuiting the magneto when the oil reaches a predetermined low level, the chamber 1 has a rockshaft 2 extending through its wall, which is connected by an arm 3 to a float 4 within the chamber and carries a finger 5 moving over an index on the exterior of the chamber. When the float falls to the position shown in full, the finger 5 engages a stop piece 10 connected to the low-tension terminal of the magneto.
Patent GB-1419430-A (GB)
Title: Rotor for a centrifuge
IPC: B04B7/08
Filed: 1973-02-10
Abstract: 1419430 Centrifuge rotor M I ILIN V I POLYAKOV V A TROFIMOV I K DRANKOVSKY and A I BOITSOV 10 Feb 1973 6646/73 Heading B1D A centrifuge rotor 1 has two tapered accelerating feeding bowls 8 and 9 placed centrally to feed material to a plurality of filtering vanes 14, the larger diameter ends of the bowls facing each other leaving a feeding gap 10. The rotor has removable top plate 1 having a charging part 13, and supporting top bowl 9. The bowl 8 is carried on the base of the rotor. Material to be separated is fed to the bowls and is fed free of air through gap 10 to impinge on vanes 14 having filtering or sieve surfaces 16 and plates 17. Liquid from gaps 15 is expelled through passages 4, solid material being expelled through ports 6. Both bowls have chamfered edges 12 to expel material as an annular jet. Feed to surfaces 16 is controlled by adjustment of gap 10. The rotor may be used in the food, pharmaceutical and chemical industries.
Patent GB-881994-A (GB)
Title: Polymerisation of ethylene
IPC: C08F10/00
Filed: 1959-02-26
Abstract: A process for polymerizing ethylene comprises (i) preparing a catalyst by heating ethylene containing 50 to 10,000 parts of oxygen per million parts of ethylene, at 130 to 190 DEG C. and at a pressure below the corresponding critical polymerization pressure until from 30 to 90% of the oxygen has combined, (ii) admixing the catalyst with substantially oxygen-free ethylene such that the total oxygen content is from 10 to 4,000 parts per million and (iii) polymerizing at a temperature of 100 to 180 DEG C.  The catalyst is said to be a solution in ethylene of oxygen and oxygen/ethylene reaction products. Polymerization may be batchwise or continuous and linear products may be obtained.  Applications specified are bottles, containers, closures, film and wire and cable coatings. Specification 471,590 is referred to.
Patent GB-1397665-A (GB)
Title: Production of fibrous webs
IPC: D04H1/60
Filed: 1973-02-10
Abstract: 1397665 Resin-fibre sheet EVANS ADLARD & CO Ltd 11 Feb 1974 [10 Feb 1973] 6684/73 Heading D1R A fibrous web is produced by adding a thermoplastic resin to fibres, causing the resin to flow and bind the fibres together in the form of a web, adding a curing agent for the resin and causing or permitting the curing agent to act on the resin to cause it to set. Specified fibres are wood and/or cotton linters specified binders are a novolak (phenol-formaldehyde) resin and an epoxy resin. In an example a wood fibre web is mixed in a defibrator with 20-25% by weight of the mixture of 5-25 micron particles of a novolak resin prepared under acid catalysis. The mixture is air laid by suction onto a foraminous support. Resin carried through the layer is recovered. The layer is heated to 150‹C to cause the resin to flow then allowed to cool. 6 to 12% of a 35% aqueous solution of hexamethylene tetramine is applied by spraying or a kiss-coat roll and the web either pressed between heated plattens to densify the web and cure the resin or shaped into a filter element by pleating and folding and heated to 150‹C by hot air or a shaped element to decompose the hexamethylene tetramine and thus cure the resin. The ammonia and formaldehyde vapours may be recirculated to enhance the curing. In an alternative embodiment ammonia and formadlehyde are applied in the vapour state rather than as hexamethylene tetramine.  Phthalic anhydride may be used to cure an epoxy resin. A resin and cross linking agent which cure at room temperature or following exposure to ultraviolet rays may be used.
Patent GB-326652-A (GB)
Title: Improvements in railway rolling stock underframe structures
IPC: B61F1/06
Filed: 1929-03-01
Abstract: 326,652. Brookes, N. E., (Commonwealth Steel Co.). March 1, 1929. Underframing of bodies.-In an underframe for a railway vehicle comprising a one-piece casting the underframe is adapted to be supported on pivoted bogies and comprises end sills 1, 2, draught sills 7 between the end sills and bolsters 3, and centre sills 6 between the bolsters 3 and spaced farther apart than the draught sills 7. A centre transom 4 and side sills 5 are provided and vertical webs 8 from the end sill 1 form with draught sills 7 a pocket for the buffing elements 9. The centre sills 6 are provided with brackets 11, 12 for mounting the air brake cylinder 10, and downwardly extending brackets 13 are provided for the brake rigging levers, other brackets 14, 15 also being provided for this purpose. Centre-plate members 16 are provided on the bolsters 3 adapted to co-operate with the centre-plates of the bogies and flanges 17 are provided on the bolsters to form side-bearings. The brackets 6, centre-plate bearings, &c. may be bolted to the structure.
Patent GB-379711-A (GB)
Title: Improvements in and relating to means for electrically producing oscillatory or reciprocatory motion
IPC: H02K33/10
Filed: 1931-03-04
Abstract: 379,711. Reciprocating motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and CLINKER, R. C., Tryrn, Bilton, near Rugby. March 4, 1931, No. 6738. [Class 35.] Electrical means for producing mechanical movement comprise a circuit energized by alternating current including a closed core reactance 3 in series with a condenser 4 and means such as a movable core or armature 2 arranged to cause a change in the inductance of the circuit, the electrical conditions of the circuit being such that a variation of the inductance from a minimum value at which the current is high, to a predetermined higher value ensures a sudden drop in the current and vice versa, and these sudden changes of current are utilized to sustain an oscillatory or reciprocating movement of the core or armature. It is explained in the Specification that the closed core of the reactor approaches saturation at high current values with consequent diminution of the coil inductance so that with varying applied voltage or with varying reactor admittance, the current varies according to the characteristic shown in Fig. 2. In the form shown in Fig. 4, the actuating coil 1 is separate from the main reactor, whereas in Fig. 5 an armature 7 is mounted to move in the leakage field from the portion 6 of the core which works at a higher flux density than the remaining portion 8. The oscillating movement may be converted into rotation. Specification 253,110, [Class 35, Dynamo-electric generators &c.], is referred to.
Patent GB-918629-A (GB)
Title: Improvements in or relating to fluidised beds
Inventor: DOLEMAN JACK
IPC: F26B13/10
Filed: 1960-02-26
Abstract: 918,629. Finishing fabrics. BRITISH RAYON RESEARCH ASSOCIATION. Feb. 22, 1961 [Feb. 26, 1960], No. 6760/60. Class 42 (1). [Also in Group XIII] In apparatus in which sheet material, e.g. a fabric or a multiplicity of filaments in sheet form, is passed a plurality of times through a heated fluidized bed, the msterial is passed downwardly through the bed 10 and then upwardly therethrough its direction being reversed by a roller 14 in a bottom chamber which has entry and exit slits for the material and is supplied with compressed air which prevents the bed filling from passing through the slits into the bottom chamber and fluidizes the bed. As shown the bed includes guides 12 for the material and louvres 13 heated by steam or electric elements or combustion gases. The bed is separated from the chamber by inclined side walls 23 and inclined interior walls 22 arranged as an inverted V. The slits are formed between the lower ends of these walls, are adjustable in width and are tangential to the roller. The roller is surmounted by an arcuate plate 21. Compressed air headers 19, 24 below and above the roller supply air to the roller chamber through ports 20, 25, two of the latter directing the air also into the slits. If the material passes more than twice through the bed, upper reversing rollers are located above the bed and a plurality of bottom rollers are located in a common bottom chamber or in separate chambers. Stentering means may be provided. Electric heaters in the louvres 13 may be controlled by thermal-responsive elements in the bed. The bed may have fluidizing air inlets additional to the material inlet and outlet slits. The invention is stated to be particularly applicable to fixing the dye on polyester fabric.
Patent GB-1487430-A (GB)
Title: Heat-curable pulverulent coating composition of a mixture of a copolymer containing glycidyl groups and an adduct of aliphatic dicarboxylic acid and 2,4,6-tris(n',n",n"'-dimethylaminomethyl)-phenol
IPC: C08F246/00
Filed: 1975-02-18
Abstract: 1487430 Powder coating composition HOECHST AG 18 Feb 1975 [22 Feb 1974] 6771/75 Heading C3B A powder coating composition comprises a mixture of (A) 80-96% by wt. of copolymers prepared from (i) 6-24% by wt. of epoxide monomers of formula in which R 1  and R 2  are H or CH 3 ; R<SP>3</SP> is a direct bond, -COOCH 2 -, -CH 2 OCH 2 -, (ii) 4-20% by weight of hydroxyalkyl esters of (meth)acrylic acid (C 2-4  hydroxyalkyl), (iii) 10-80% by weight of (meth)acrylic esters of C 1-8  aliphatic saturated monohydric alcohols, and (iv) 10-60% by wt. of styrene or vinyl toluene; (B) 4-20% by wt. of an adduct of and acid HOOC(CH 2 ) n COOH (n=4-11) and 2,4,6, tris(N,N<SP>11</SP>,N<SP>111</SP> - dimethylaminomethyl)phenol in a weight ratio of 97 : 3 to 99 : 1. There may additionally be present a flow control agent which is a polymer of M.W. (M n ) at least 1000 having a glass transition temperature at least 50‹ C. lower than that of the copolymer (A), e.g. polybutyl acrylate. An example of (A) is prepared from (by wt.): (i) 12-16% glycidyl methacrylate, (ii) 14-18% hydroxyethyl methacrylate, (iii) 15-25% n-butyl acrylate and 5- 35% methyl methacrylate and (iv) 20-50% styrene. (B) may be an adducts of 97À8 parts by wt. decane-1,10-dicarboxylic acid and 2À2 parts by wt. 2,4,6-tris(N<SP>1</SP>,N<SP>11</SP>,N<SP>111</SP>-dimethylaminomethyl)phenol. The powder coating composition may be prepared by grinding the components to 100-300 Ám., fusing at 95-110‹ C. whilst mixing or kneading and, after solidification, grinding to 5-120 Ám.
Patent GB-122101-A (GB)
Title: A Suspender Clip.
Inventor: STAPLETON SUSAN MARGARET
IPC: A41F11/04
Filed: 1918-09-10
Abstract: 122,101. Stapleton, S. M. Sept. 10, 1918. Stocking-suspender grips. -In a clip suspender of the type in which a flat button h is passed together with a part of the material to be secured through a relatively elongated loop, the loop k is secured to its supporting strip c by one of its longer sides so that its longer diameter is in an approximately horizontal position.
Patent GB-596596-A (GB)
Title: Improvements in or relating to voltage regulators
IPC: H02P9/26
Filed: 1945-03-19
Abstract: 596,596. Automatic control systems. SUBMARINE SIGNAL CO. March 19, 1945, No. 6871. Convention date, June 12, 1942. [Class 38 (iv)] Voltage.-In a system for ensuring that the output voltage of an alternator does not fall below a predetermined value, electronic means are provided to control the excitation in accordance with the terminal voltage. The Figure shows an arrangement in which alternator 4 is driven by motor 1 and has a constantly energized field winding A, and a second field winding B energized inversely as the terminal voltage in the following manner. A portion of the rectified output voltage is applied together with a voltage from bias battery 16 to the grids of double triode 15 which is supplied with line A.C. from transformer 8. When the output voltage is correct, the voltage drop in the cathode load resistor 22 of valve 15 is sufficient to prevent the striking of a thyratron 25 in series with the supplementary field winding B. When the output voltage falls, however, the current in 15 is reduced and the thyratron conducts for a corresponding portion of each positive half-cycle and appropriately increases the alternator excitation.
Patent GB-349645-A (GB)
Title: Improvements in or relating to cartons or boxes
IPC: B65D81/07
Filed: 1930-03-03
Abstract: 349,645. Cartons and boxes for fragile articles. RATNER, L. and RATNER, W., 230, Hendon Way, London. March 3, 1930, No. 6984. [Class 18.] A container in which a bottle &c. is held out of contact with the walls by means of flexible metal strips or wires consists, in the form shown in Fig. 1, of a cardboard carton 2 with slits 6 .. 9 and 10 .. 13 through the lower set of which flexible metal strips 14, 15 are passed, the bottle 5 being then placed between the strips which are thereafter passed through the lid and secured, e.g. by wrapping a strip metal staple round them and deforming the metal. In the form shown in Fig. 3 a hexagonal wooden skeleton container for a carboy has strips 23 of corrosion-resisting metal passing through corrosion-resisting reinforcing metal plates 20, 21 and are secured by screws. A central aperture at the top allows the stopper of the carboy to be removed. Spacing rings 24, 25 keep the strips apart.
Patent GB-819024-A (GB)
Title: Improvements in or relating to the stabilizing of lubricating greases
IPC: C11B5/00
Filed: 1957-03-05
Abstract: Lubricating greases are stabilized against oxidative deterioration by the addition of 0.0001-5 per cent by weight of a 2,41-diaminodiphenyl ether or 2,41-diaminodiphenyl sulphide.  The lubricating greases may comprise mineral or synthetic lubricating oils thickened with soaps (e.g. lithium, sodium, calcium, or aluminium soaps, such as lithium or calcium stearate, or aluminium naphthenate and soaps prepared from whale oil, wool grease, inedible fats or tallow), silica, carbon black, polyacrylates or talc.  The lubricating grease may contain additional additives such as alcohols, esters, polybutane, sulphurized fatty materials, sulphur- and chlorine-containing compounds, dyes, perfumes, fillers, metal deactivators (e.g. disalicylal diamino propane or ethylene diamine tetra-acetic acid tetra-sodium salt), tricresyl phosphate, trialkyl phenols, alkylated diphenylamines, phenyl naphthyl amines, dialkyl phenylene diamines, phenothiazine, organic selenium compounds, corrosion inhibitors, extreme pressure additives and viscosity index improvers.  Instead of the 2,41-diaminodiphenyl ether or sulphide, there may be employed a 2,41-dialkylaminodiphenyl ether or sulphide or a corresponding compound wherein one or both of the substituents attached to the nitrogen atoms are alkenyl, cycloalkyl, cycloalkenyl, aryl, alkaryl or aralkyl groups.  In examples, 2,41-diaminodiphenyl ether is added to a lubricating grease consisting of lubricating oil (mineral lubricating oil, bright stock or di-2-ethylhexyl sebacate) thickened with lithium stearate.  For comparison purposes, the effect of 4,41-diaminodiphenyl ether as a stabilizer for lithium grease is described.
Patent GB-797982-A (GB)
Title: Improvements relating to the preparation of cyclonite
Filed: 1957-03-05
Abstract: Cyclotrimethylenetrinitramine (cyclonite) is prepared by the nitrolysis of hexamethylenetetramine which comprises reacting 98-100 per cent by weight concentrated nitric acid with hexamethylenetetramine in ratios between 8 : 1 and 15 : 1 by weight while agitating the mixture and maintaining the temperature between -42 DEG  C. and -10 DEG  C., adding an excess of cold water to the reaction mixture and separating the cyclonite which precipitates from the mixture.  The yield of cyclonite can be increased by heating the reaction mixture immediately after nitrolysis to a temperature between 0 DEG  C. and 20 DEG  C. and maintaining it at that temperature for 20 to 40 minutes, or by rapidly heating the mixture to between 80 DEG  and 90 DEG  C. and immediately quenching with an excess of cold water.  It is possible to combine both of these operations by warming the reaction mixture to between 0 DEG  and 20 DEG  C. for 20 to 40 minutes and then rapidly heating the mixture to between 80 DEG  and 90 DEG  prior to adding an excess of cold water. The reaction mixture must be heated as rapidly as possible as by passing a thin layer of the mixture over a series of heated baffles. The preferred conditions for the nitrolysis comprise reacting about 11 parts of 98-100 per cent by weight concentrated nitric acid with 1 part of hexamethylenetetramine while agitating the mixture at approximately -30 DEG  C., adding an excess of cold water and separating the cyclonite which precipitates.  Detailed examples are given.
Patent GB-589514-A (GB)
Title: Improvements relating to boring bars
IPC: B23B29/034
Filed: 1945-03-23
Abstract: 589,514. Boring and cutter bars. MORRIS COMMERCIAL CARS, Ltd., and BOSWELL, A. G. March 23, 1945, No. 7352. 83 (iii)] In a boring &c. bar in which a plain or toothed circular cutter can be adjusted to suit the diameter of hole being bored and to bring an unworn section into use, the cutter 3 is rotatably mounted in a slot 2 inclined to the longitudinal axis of the bar 1 on an eccentric pin 4 which is carried by a head 5 rotatable in the body and locked by a screw 8. Screws 9 clamp the cutter in position.
Patent GB-312041-A (GB)
Title: Improved method of constructing spinning pots or boxes utilised in the manufacture of artificial silk and the new articles of manufacture obtained
IPC: D01D7/02
Filed: 1929-03-06
Abstract: 312,041. Bruhl, J. May 19, 1928, [Convention date]. Spindle apparatus. - Spinning boxes used in the manufacture of artificial silk are formed of layers 1, 1', 1<11>, of cellulose paper or fabric impregnated with synthetic resin, and layers 8 of asbestos paper or fabric also impregnated with synthetic resin, the asbestos layers being arranged at the parts liable to be attacked by the material under treatment. The synthetic resin serves as an adhesive between the layers. Specification 276,697, [Class 140, Waterproof &c. fabrics], and 293,060 are referred to. The Specification as open to inspection under Sect. 91 (3) (a), comprises also bobbins and like devices constructed of layers of. cellulose paper or fabric and of asbestos paper or fabric impregnated with synthetic resin or, when chemical action may be produced in the mass of the article, as in the case of a perforated bobbin, Fig. 5 (cancelled), of layers of impregnated asbestos alone. This subject-matter does not appear in the Specification as accepted.
Patent GB-330308-A (GB)
Title: Process for the manufacture of sulphur dyestuffs
IPC: C09B49/10
Filed: 1929-03-06
Abstract: 330,308. Carpmael, A., (I. G. Farbenindustrie Akt.-Ges.). March 6, 1929. Sulphur dyes of good fastness and solubility are obtained by subjecting an indophenol or leuco-indophenol obtained from an alkyl- or aralkyl-1-naphthylamine-6- or 7-sulphonic acid and p-aminophenol or a derivative thereof, or a mixture of such indophenols, to sulphur fusion in the presence of an aqueous or alcoholic solution of alkali polysulphides, with or without copper or a salt thereof. In examples : (1) the leucoindophenol obtained from ethyl-1-naphthylamine-6-sulphonic acid and p-aminophenol is heated with aqueous polysulphide and copper sulphate to give a green dye; without the addition of copper a more bluish product is obtained; (2) and (3) Similar dyes are obtained when the leucoindophenol obtained from ethyl-1-naphthylamine- 7-sulphonic acid and p-aminophenol, and the leucoindophenol obtained from the mixture of ethyl-1-naphthylamine-6- and 7-sulphonic acids and p-aminophenol, are subjected to the treatment of example (1). (4) The leucoindophenol obtained from benzyl - 1 - naphthylamine - 6-sulphonic acid and p-aminophenol is treated with alcoholic polysulphide solution. (5) The leucoindophenol obtained from ethyl-1-naphthylamine- 6-sulphonic acid and 3 : 5-dichloro-1-amino-4- phenol is treated with aqueous polysulphide and copper sulphate to give a green dye.
Patent GB-716270-A (GB)
Title: Presses for moulding plastic substances such as concrete
IPC: B28B3/02
Filed: 1950-12-21
Abstract: 716,270. Presses for moulding concrete blocks; mechanical presses. SMITH, W. H. Dec. 14. 1951 [Dec. 21, 1950], No. 7536/53. Divided out of 716,238. Class 87 (2) .The ram 25 of a press for moulding blocks of concrete &c. is pulled down into the mould box by hook members 31 which engage the ram and are actuated by a lever 32 and cam 36. The ram 25 is pulled down manually against spring pressure and the hooks 31 engaged with the projecting lugs 30. Anticlockwise rotation of the cam 36 from the position CP causes the cam roller 36 to engage an adjustable cam plate 34 on the lever 32 and to move the lever in the direction of compression. After the compression stroke, the roller 35 displaces a pawl 40 which acts through spring-biassed mechanism 37, 38, 39 to disengage the hooks 31 from the lugs 30. The press' is charged and vibrated in the manner described in Specification 716,238. The ejection mechanism is described in Specification 716,271. Specification 417,846 also is referred to.