baber/WOPTO huggingface dataset:
Patent GB-266420-A (GB)
Title: Improvements relating to the manufacture of tarred macadam and the like
IPC: E01C7/18
Filed: 1925-10-30
Abstract: 266,420. Wake, J. F. Oct. 30, 1925. Tar-macadam, plant for making; macadamized roads.-A lubricating film or coating of unctuous material such as linseed oil is applied to the usual tarred aggregate. The film is such that it facilitates handling the tar macadam but has no fluxing or cutting-back action on the original coat. The tar madacam may be made in a mixer as described in Specification 193,440, [Class 86, Mixing &c.], the oil film being subsequently applied in the same mixer by spraying or trickling.
Patent GB-284412-A (GB)
Title: Improvements in or relating to containers for liquid or semiliquid adhesives
IPC: B43M11/06
Filed: 1926-11-01
Abstract: 284,412. Stephens, Ltd., H. C. Stephens, C. G., and Fincham, F. C. Nov. 1,1926. Gum and the like bottles.- A spreading device for use with gum-bottles comprises a fitting B, of non-absorbent. resilient material such as sponge-rubber, which is non- porous in action, the fitting being flanged at b' so as to be secured to the bottle neck a by a screw-cap C. A reverse screw at c<1> may accommodate a dosing cap, and washers D, D<1> may be provided.
Patent GB-226174-A (GB)
Title: Improvements in or relating to high tension current transformers
IPC: H01F38/30
Filed: 1924-11-15
Abstract: 226,174. Siemens & Halske Akt.-Ges. Dec. 11, 1923, [Convention date]. Transformers. - A high-voltage current transformer comprises a high-voltage winding w passing at right-angles through an annular iron core e carrying the secondary winding, insulation means, the layers of which follow, as far as possible, equi-potential surfaces, being inserted between the high-voltage winding and the core. The number of ampere turns of the high-voltage winding is made so great that the weight of the iron core is approximately equal to, or smaller than, the copper weight of the winding. In the construction shown in Fig. 1, the insulation comprises layers of paper v which fill up the core opening, thereby serving to support the winding, and decrease in thickness on both sides of the core to the point of introduction of the highvoltage leads h, leaving a space in which is inserted a screen s of several thick layers of paper. The insulation layers p may be impregnated with oil or other viscous substance, and the whole transformer may be immersed in oil. In a modification, Fig. 3, intended exclusively for oil immersion, screens i, i<1>, m and s are provided between the winding w and the core.
Patent GB-324660-A (GB)
Title: Apparatus for pressing meat and facilitating the slicing thereof
IPC: B26D7/00
Filed: 1928-09-26
Abstract: 324,660. Bate, E. M., and Williams, H. W. Sept. 26, 1928. Cutting slices in succession; pressing-apparatus. -In a device for pressing and facilitating the slicing of meat, of the type in which a pistonlike plate. and the projecting portion ,is sliced off by a hand knife drawn across the mouth of the container, the means for moving the plate J consists of a a combination screw E arranged telescopically so that the plate is moved by the sum of the screw motions. The plate J is screwed to the inner screw E and is prevented from rotating by ribs L<1> inside the container C which rests on, and is secured by screws to, arms projecting from the pedestal A. The handle H carries a bevel F which meshes with a bevel G.
Patent GB-975988-A (GB)
Title: Improvements in or relating to mechanical drives
IPC: F16H37/08
Filed: 1962-07-18
Abstract: 975,988. Variable - speed epicyclic gear. BELOIT CORPORATION. July 18, 1962 [Aug. 31, 1961], No. 27639/62. Heading F2D. In paper-making or like machinery, a belt pulley 12, driven at a constant speed by a line shaft 10 and driving at a variable speed a machine shaft 18 through a gear-box 17, comprises a counterbalanced output carrier 39 having interengaging planets 36, meshing a ring 35 integral with the pulley rim 19 and 41, drivingly connected, through its step 43, to a control reaction sun 44 which is variably driven from the pulley rim through a pulley 33, a variable speed gear such as the " P.I.V. " gear (Trade Mark) 30 shown, and a pulley 29. A clutch 16 between the carrier 39 and a gearbox 17 may be air operated, shafts 27 and 15 respectively connected to the sun 44 and the carrier being bored and sealed to act as conduits. The output carrier speed is increased and decreased respectively by decreasing and increasing the speed of the sun 44; alternatively this relationship may be reversed by the addition of a further gear in the epicyclic train.
Patent GB-1024081-A (GB)
Title: Preparation of amines by the hydrogenation of nitriles
Inventor: SZABO DENIS
IPC: C07C209/48
Filed: 1962-07-18
Abstract: Aliphatic primary amines are prepared by catalytic hydrogenation of C8- 22 aliphatic nitriles, the yield of said amines being improved by the independent inclusion, with the nitrile reactant and catalyst or catalyst support, of a polar solid absorbent which will not react with the amine formed.  The polar solid absorbent is defined as a solid absorbent in which the inter-atomic bonds are appreciably ionic in character, e.g. alumina.  The hydrogenation may be carried out under a partial pressure of ammonia.
Patent GB-969401-A (GB)
Title: Improvements relating to fluid-pressure operated cut-off valves
Inventor: JEAVONS MALCOLM WILLIAM
IPC: F16K17/22
Filed: 1962-07-18
Abstract: 969,401. Valves. E. E. JEAVONS & CO. Ltd., [trading as JEAVONS ENGINEERING CO.]. July 17, 1963 [July 18, 1962], No. 27677/62. Heading F2V. A fluid-pressure operated cut-off valve in which a valve member 9 is biased towards the closed position but is normally held open in use by the application of fluid pressure downstream of the valve to a diaphragm 13 or other pressure member operating the valve, has a chamber 16 opening to the exterior of the valve body, a by-pass valve seating 20 facing outwards, an outlet port 22 from the chamber, a closure member 24 detachably secured over the chamber opening and a plunger 34 slidably mounted in the closure member, urged inwards by a spring 27 and having at its inner end a valve portion 26 engageable with the valve seating, the outer end of the plunger projecting outwards from the closure member and being provided with means 32 for manually withdrawing the plunger to open the by-pass valve. The valve may be used in connection with a pre-payment gas meter in which there is a risk of the escape of gas at unlighted burners of appliances on the restoration of gas supply when a coin is inserted in the meter. To open the valve 9, the valve portion 26 is lifted from its seating allowing gas to flow from inlet port 3 through the outlet port 22 to the downstream side of the valve 9 and from there through a passage (not shown) into the space between a pair of diaphragms 12, 13. The upward movement of the valve is first opposed by a small dead weight 37 and then by a large dead weight 38 which controls a governor valve head 8 to keep the downstream pressure at a predetermined value.
Patent GB-694310-A (GB)
Title: Improvements in and relating to the stabilisation of aldehydes
Inventor: ROBERTSON ALAN
IPC: C07C45/86
Filed: 1949-10-28
Abstract: Aldehydes other than formaldehyde are stabilized against oxidation by addition of an N-alkyl mono-substituted aniline which may also be alkyl substituted in the ring.  The amount added is at most a few per cent and, preferably, 0.001-1 per cent by weight. The aldehyde may be acetaldehyde, butyraldehydes, nonaldehydes and the like obtained by Oxo synthesis, e.g. from di-isobutene. Propyl and butyl substituted anilines are the preferred inhibitors.  Examples illustrate the stabilization of nonaldehyde by N-(methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec.-butyl or tert.-butyl) aniline or N-n-butyl-p-toluidine.
Patent GB-984285-A (GB)
Title: Improvements in or relating to winches
IPC: A01K89/015
Filed: 1961-07-31
Abstract: 984,285. Fishing reels. A. F.- BERTHIER. July 31, 1961 [Aug. 9, 1960], No. 27690/61. Heading A1A. [Also in Division B8] In a drive for a fishing reel 12, Fig. 1, in which a spring coupling 11 is driven through a constant tension slipping clutch/ brake device 23, 24, the clutch pressure is set by a nut 18 rotated by the hand wheel 16 and engaged on a threaded portion 20 of a driving shaft 5, keyed to the driving member 23 of the clutch. The shaft 5 is held against rotation in the unwinding direction by a ratchet device 6 so that the clutch may be released by reverse rotation of the nut 18. The nut 18 is driven from the hand wheel 16 through a step up gear 15, 14 and a ball 19 and key-way device 17 which permits relative longitudinal movement of the nut 18. Movement of the nut 18 compresses the clutch brake washers 23, 24 through intermediate spring washers 22, a collar 32 limiting movement of the nut 18 and thereby limiting the line tension below the breaking load.
Patent GB-946462-A (GB)
Title: An electrical system for the control of torque
IPC: H02P27/04
Filed: 1960-08-10
Abstract: 946,462. Automatic torque control. ALLGEMEINE ELEKTRICITATS-GES. Aug. 10, 1960 [Aug. 11, 1959; Dec. 28, 1959], No. 27709/60. Heading G3R. [Also in Division H2] A variable frequency generator 1 supplies a squirrel cage motor 5 driving a rock-drill, the excitation of the generator being controlled to keep the pull-out torque of the motor substantially constant. A current transformer 9 supplies a resistor 10 divided into a fixed part, corresponding to the ohmic losses of the motor, and a variable part which makes allowance for the increasing resistance of the supply-lines as the length of cable between the motor and generator increases. A current transformer 9a supplies an adjustable inductor 10a the voltage across which is added to the secondary voltage of transformer 15, whilst the voltage across resistor 10 is subtracted from the secondary voltage. The primary winding of the transformer 15 is supplied with the phase voltage of the generator. The resultant voltage at terminals r, s, is a measure of the torque and is applied to a series-connection of resistor Rm and inductor Xm which has a high value in comparison with the resistance. The voltage derived from resistor Rm is dependent upon the frequency and is applied through rectifier 16 to field winding 17 of amplifying machine 18 connected in the exciting circuit of the generator. A reference winding 19 for the amplifying machine is supplied from a source of constant voltage. In a modification, the reference voltage is derived from the resistor Rm through a rectifier and a non-linear resistor, Fig. 6 (not shown).
Patent GB-422968-A (GB)
Title: Improvements in and in connection with the de-watering of sand or other granular material
IPC: B01D29/00
Filed: 1933-10-09
Abstract: 422,968. Filters. REYNOLDS, W. H., 8, Parkinson Street, and MANLOVE, ALLIOTT, & CO., Ltd., Bloomsgrove Works, Norton Street, both in Nottingham. Oct. 9, 1933, No. 27724. [Class 46] Sand or granular material is separated from liquid delivered to a vessel A through a pipe F by a filtering partition B, the solid matter being swept round the partition by scrapers G on a vertical shaft H to a sector-shaped opening C and discharged therethrough, while the liquid passes through the partition B to a space E connected by a pipe K to a suction pump. The filtering partition may comprise a frame consisting of a hub B<1> and spokes connected to an outer rim, each of the spaces between the spokes, except that corresponding to the opening C, being fitted with two perforated plates or wire mesh panels having glass wool or other filtering material between them. The space E may be divided by radial partitions into compartments, some only of which are connected to the pump. According to the Provisional Specification the filtering partition may consist of a perforated plate and a filter cloth.
Patent GB-718346-A (GB)
Title: Wheel and cover assembly
IPC: B60B7/06
Filed: 1952-11-04
Abstract: 718,346. Vehicle wheels. KELSEY-HAYES WHEEL CO. Nov. 4, 1952 [Dec. 3, 1951], No. 27753/52. Class 144(1) A wheel fairing-disc 15 is provided with teeth 19 for biting-engagement with the bead-seat 13 of the rim-flange, an inward radial projection 20 on the bead-seat being adapted to extend between adjacent teeth on the disc to align the valve-stem holes 9, 16 respectively in the wheel-rim and disc. As shown, the latter has a rim-seating bead 17 and a resilient flange 18 on which the teeth 19 are formed.
Patent GB-344365-A (GB)
Title: Improvements in and relating to processes and apparatus for producing multicoloured prints
IPC: G03C7/25
Filed: 1929-09-12
Abstract: 344,365. Photographic dye-impression processes. LIERG, F., 2, Ditscheinergasse, Vienna. Sept. 12, 1929, No. 27757. [Class 98 (ii).] In processes for producing colour prints by imbibition from gelatine reliefs, the dyestuff is temporarily fixed in the relief in insoluble form e.g. by precipitation of insoluble dye acids or dye bases with acid or alkali. Reagents which liberate the dyestuff may be incorporated in the gelatine of the receptive surface and may be such as will precipitate the dyestuff transferred to the surface. Examples of suitable reagents for the receptive surface are cuprous iodide, silver iodide, copper thiocyanate, thiophenols or complex acids such as phosphortungstic or phosphormolybdic acids in the case of basic dyestuffs, and alkalies, such as tribasic sodium phosphate, or barium salts for acid dyestuffs. In an example barium carbonate is incorporated in the receptive surface and printing is effected with diamine pure blue FF or fast blue FF for blue, and carmoisine D for red. The gelatine reliefs may be produced from a silver halide layer by bathing the exposed layer in alkali and then developing with a tanning developer e.g. pyrocatechol, free from alkali. Specifications 15823/13, 245,163, and 316,367, [all in Class 98 (ii), Photographic processes &c.], are referred to.
Patent GB-1235489-A (GB)
Title: Hydraulic method and apparatus for metering molten alkali metals
Inventor: ADDIS GILBERT IRVING
IPC: F04B49/20
Filed: 1968-06-12
Abstract: 1,235,489. Discharging liquids by liquid pressure. UNION CARBIDE CORP. June 12, 1968 [June 19, 1967], No. 27880/68. Heading F1R. Molten lithium, sodium or potassium is discharged from a chamber at a substantially constant volume flow rate, e.g. for producing sodium core electrical conductor, by pumping a displacement liquid, which is inert to and immiscible with the lithium, sodium or potassium, e.g. mineral oil, into the chamber at the required rate. In the embodiment shown, chambers A and B are sequentially filled and discharged to supply molten sodium continuously to a pipe line 50. The displacement oil is supplied at the required flow rate by a gear pump 12 driven by a variable speed motor 13. A centrifugal pump 16 supplies oil from storage tank 17 to a constant head tank 14 supplying pump 12. The temperature of the sodium and oil are maintained at the required levels by heating means in the chambers A, B and oil supply tank, an oil cooler 61 being provided in the return line from the chambers A, B to the tank. Valves 21 to 35 may be automatically controlled. In Fig. 2 (not shown), a single discharge chamber continuously supplies sodium to the pipe line, and is replenished during discharge by gravity flow from a storage chamber, or by a pump transferring oil from the top of the discharge chamber to the top of the storage chamber.
Patent GB-958398-A (GB)
Title: Improvements in or relating to synthetic thermoplastic containers
Inventor: SANDYS ROY ALBERT
IPC: B65D8/08
Filed: 1961-08-01
Abstract: 958,398. Thermoplastic containers; packages. METAL BOX CO. Ltd. April 30, 1962 [Aug. 1, 1961], No. 27910/61. Headings B8C and B8D. An hermetically sealed container is formed of gas-permeable synthetic thermoplastic material, the rate of permeability of a closure 4 being higher than that of the walls 1 whereby, after the container contents are subjected to vacuum created in the headspace 3, an equilibrium is established in the container. The container and. closure may be of polystyrene, polyethylene or polypropylene. The closure 4 may be secured by heat-sealing, such as by highfrequency welding. A snap-on cap may be fitted over the closure 4.
Patent GB-254943-A (GB)
Title: Spring suspension
IPC: F16F15/04
Filed: 1925-11-06
Abstract: 254,943. Kreissig, E. Nov. 6, 1925. Springs, arrangement of.-In spring suspensions for vehicles and parts of machinery in which the reaction of the spring on the supported body is constant or substantially constant throughout the displacement of the body, only a part of the spring is subjected to stress, the extent of the part varying with the displacement, but the stress throughout that part remains constant or substantially constant. The arrangement shown diagrammatically in Fig. 2, comprises a lever i pivoted at o' and formed with arcuate surfaces l, k co-axial with the pivot o<l>. A mass G is suspended by a flexible connection f bearing on the surface 1, and a spring n connected to the surface k at m bears against a fixed roller p. Such a system is stated to be in equilibrium for all positions of the lever, and in order to stabilize the system in a central position the radius of the surface k or the cross-section of the spring n may be varied, or weak centralizing springs may be added. In the arrangement shown in Fig. 3, the lever i is pivoted at o' to the axle and supports the body K by means of links s which are connected to a nut t travelling on a rotatable screw u which is mounted in the lever and carries a ratchet wheel v. Spring buffers w are mounted on the body above and below the lever, and upper and lower spring controlled pawls x are pivoted on the body and axle respectively. This arrangement is selfadjusting for variations in load.
Patent GB-519695-A (GB)
Title: Improvements in colour photographic development
IPC: G03C7/413
Filed: 1938-09-26
Abstract: 519,695. Tetrahydroquinoline and phenmorpholine derivatives. KODAK, Ltd. (Eastman Kodak, Co.). Sept. 26, 1938, No. 27972. Drawings to Specification. [Class 2 (iii)] [Also in Group XX] N - (#- hydroxyethyl) - 1 :2:3:4 - tetrahydroquinoline is prepared by heating ethylene oxide and 1:2:3:4 - tetrahydroquinoline in a bomb, and N - (# hydroxyethyl) - 6 - amino - 1:2:3:4 - tetrahydroquinoline is prepared therefrom by nitrosation and reduction. N-(#-hydroxypropyl) - phenmorpholine and N-(#-hydroxypropyl)-6-aminophenmorpholine are similarly prepared from phenmorpholine. Phenmorpholine is prepared by the action of ethylene chlorhydrin on o-aminophenol.
Patent GB-1459468-A (GB)
Title: Imaging process
IPC: G03G15/05
Filed: 1974-06-25
Abstract: 1459468 Electrography XEROX CORP 25 June 1974 [27 June 1973] 28045/74 Heading G2H  An electric charge pattern is formed by: providing in imagewise configuration a layer of an injecting material on an electrically conductive substrate to form an injecting master, said injecting material being capable of generating and injecting electric charge carriers in response to an electrical field alone; providing a layer of an electrically insulating liquid on said injecting master; contacting the free surface of said layer of insulating liquid with an electrically insulating member; and, applying an electrical potential difference across said injecting material and said insulating liquid layer of sufficient magnitude to cause said injecting material to form a charge pattern on said insulating member as a result of charge carrier injection from said injecting material. Many suitable organic and inorganic injecting materials are specified and may be applied alone or combined with a binder; materials exemplified being polyvinyl carbazole  alone, mixed with metal-free phthalocyanine, and combined with a melamine formaldehyde resin binder. The substrate may be coated with the injecting material by any convenient means, e.g. electrophotographically or by stencilling. Development of the charge pattern may be by any known electrographic method.
Patent GB-520829-A (GB)
Title: Manufacture of sintered calcium oxide
IPC: C04B35/057
Filed: 1938-09-27
Abstract: 520,829. Sintered calcium oxide ; calcium carbide. AKT.-GES. FUR STICKSTOFFDUNGER. Sept. 27, 1938 No. 28095. Convention date, Sept. 27, 1937. [Classes 1 (ii) and 1 (iii)] Sintered calcium oxide containing at least 80 per cent. and preferably 90 per cent. CaO, for use in the manufacture of calcium carbide or cement, is produced by calcining a calcium compound subdivided as finely as possible by a chemical process, such as slaked lime or freshly precipitated calcium hydroxide produced in the manufacture of acetylene from calcium carbide, at a temperature between 1000‹ and 1800‹C. The calcium hydroxide should contain at least one acidic oxide forming a waterinsoluble compound with calcium and sufficient may be already contained in the starting material. This may be supplemented by addition of compounds of silicic, hydrofluoric, phosphoric or sulphuric acids or cement forming oxides or manganic or chromic oxides. Their effect is to reduce the sintering temperature. The temperatures used in examples range from 1300 to 1600‹C. The charge may be briquetted under pressure and calcined in a shaft furnace. The product is stated to very resistant to the effects of water and carbon dioxide.
Patent GB-1037255-A (GB)
Title: Process and apparatus for the continuous distillation of mixtures
IPC: C01B17/88
Filed: 1963-07-16
Abstract: 1,37,255. Fractional distillation; purifying sulphuric acid. HERAEUS QUARZSCHMELZE G.m.b.H. July 16,1963 [Aug. 13,1962], No. 28132/63. Heading B1B. A liquid mixture to be submitted to fractional distillation in column 4 is first preheated and partially vaporized in heat exchanger 3 by means of vapours of the higher boiling fraction, withdrawn as liquid from the base 5 of the column and vaporized in an evaporator 6 which leads to heat exchanger 3. The preheated feed is introduced into the middle section of column 4; and the part of the vapours of the higher boiling fraction, which have not been condensed in heat exchanger 3, is introduced into the lower section of the column The system is particularly advantageous in the purification of industrial sulphuric acid using apparatus made of quartz, operated under vacuum The acid is first preheated, in line 1 which passes through dephlegmator 2, by means of steam from the top of the column, and the feed then passes to heat exchanger 3. Purified sulphuric acid flows from the other pass of heat exchanger 3 into cooler 7, and is then withdrawn from the system. The condensate formed in the dephlegmator is returned to the top of the column reflux. Gases are drawn into vacuum pump 8.
Patent GB-993061-A (GB)
Title: Grease manufacture
IPC: C10M169/00
Filed: 1961-08-02
Abstract: A method of making a grease comprises wetting a preformed soap thickening agent in a grease-forming quantity with an oil of lubricating viscosity, at a temperature between 250 DEG  F. and the lower of the decomposition temperatures of the said agent and oil, subjecting the resulting oil-soap mixture, at a temperature within the aforesaid range and at a pressure of at least 1000 p.s.i., to mechanical atomization into dispersed droplets, and instantaneously contacting the droplets directly with a substantially cooler surrounding atmosphere to effect heat exchange, thereby forming a grease.  The oil may be mineral, e.g. naphthenic, or synthetic. Synthetic oils mentioned include polymerized olefins (e.g. polypropylene), silicones (e.g. polymethylsiloxane) silicate esters, fluorocarbons, perfluoroalkyl ethers, esters of polybasic acids (e.g. di-(2-ethylhexyl) sebacate and adipate, dibutyl phthalate), esters of polyalcohols and monocarboxylic acids (e.g. dipropylene glycol dipelargonate, polyethylene glycol di-(2-ethylhexoate)), polypropylene glycol, esters of phosphorus acids, and amines. The soap thickening agent may be a lithium or calcium soap or mixtures of one or more of either or both, or a mixture or complex of calcium salts and soaps. Soaps of Na, K, Ba, Sr, Zn, and Al may also be used. In the examples and soaps and salts are formed from the following acids: stearic, wool grease fatty acids, 12-hydroxy stearic, caprylic, and acetic, and in one of the examples lithium hydroxide and water are also present.