baber/WOPTO huggingface dataset:
Patent GB-753686-A (GB)
Title: Production of haloacids
IPC: C07D315/00
Filed: 1954-03-16
Abstract: The invention comprises a process for making an omega-haloaliphatic carboxylic acid by reaction between a cyclic ketone having a keto group in the ring with an aqueous mixture of hydrogen peroxide and sulphuric acid to obtain a lactone-containing product and treating the crude product with a hydrohalic acid.  In examples, the residue from a previous reaction between cyclohexanone, hydrogen peroxide and concentrated sulphuric acid is caused to react with fresh hydrogen peroxide and sulphuric acid and further cyclohexanone is added, the product without isolation being treated with concentrated hydrochloric acid.  The product is epsilon-chlorocaproic acid. Other cyclic ketones specified include cyclopentanone, suberone, methone and others having 5-, 6- or 7-membered rings.  The brominated product may be obtained with the use of hydrobromic acid at the corresponding stage.  Temperatures are preferably 30-45 DEG  C. for the first reaction and up to 170 DEG  C. for the hydrochloric acid reaction.
Patent GB-876757-A (GB)
Title: Improved package structure
IPC: B65D75/58
Filed: 1960-03-03
Abstract: 876,757. Packages. HEDLEY & CO. Ltd., THOMAS. March 3, 1960 [March 11, 1959], No. 7620/60. Class 94(1). A package includes a relatively stiff liner member and a superposed flexible outer wrapper, said liner member having one end terminating in an opening tab, the liner member and the outer wrapper being wrapped round an article so that the opening tab is interposed between the corresponding end of the outer wrapper on the outside of the package and an inner layer of the outer wrapper beneath the opening tab, the end of the opening tab protruding, whereby it can be pulled so as to tear the outer wrapper and open the package. The liner blank 15 is divided into panels by score lines 21, 22, 23, 24, 29, 30, 31, 32, Fig. 4, and tabs 39 are cut near the score lines 21, at a distance about equal to the thickness of the blank. The composite wrapper is folded about the article, e.g. a bar of soap 40. Fig. 6 shows a stage in the folding operation, when the panel 20 is folded into place it is prevented by the tabs 39, Fig. 10, from bending inwards, whereby a rectangular structure is assured. The tear tab panel 16 is folded along the score line 21 and interposed between the inner and outer layers 45, 38 of the outer wrapper, leaving the tab 37 protruding. The wrapper may then be torn open by pulling back the tab. The outer wrapper may have perforations 46, Fig. 2, to facilitate tearing, or may be shaped, Fig. 3, to conform to the end of the liner blank, the edges 49, 50 overlapping the edges 33, 34 of the blank, to which they are heat-sealed. The relative sizes of the panels may be varied and some, e.g. the end panels 25, 26, 27, 28 may be omitted. The score lines may be omitted, the liner blank then being of relatively soft, though reasonably stiff, material. Less than all the surfaces of the article, even one only, may be covered by the liner blank, this necessitating the blank being adhesively secured to the wrapper.
Patent GB-876250-A (GB)
Title: Phosphate coating
Inventor: ROITT EDWARD
IPC: C23C22/22
Filed: 1959-03-05
Abstract: Glycerophosphate is added to zinc phosphate solutions used for applying phosphate coatings to ferriferous surfaces.  The glycerophosphate may be added direct to the working solutions or may be incorporated in concentrates used for make-up or replenishment purposes.  Its concentration in the solution expressed as sodium glycerophosphate, is preferably 0.1-0.5% by weight.  The solution may also contain calcium and an accelerator such as nitrite, nitrite/nitrate or chlorate.
Patent GB-238480-A (GB)
Title: Process for electrical gas purification
IPC: B03C3/014
Filed: 1925-03-23
Abstract: The process of the parent Specification is modified by subjecting the gas, before cooling to or below the dew point, to a preliminary electric cleaning.  Tubular collecting electrodes, cooled by air or other cooling medium, may be employed in this cleaning, thus enabling the size of the cooler proper, or the amount of cooling water used, or both, to be reduced.  Cooling of the gas in the preliminary cleaner to below dew point is prevented by using a heater in advance thereof when required.
Patent GB-1505317-A (GB)
Title: Production of dioctadienyl phthalates
IPC: C07C69/80
Filed: 1977-02-16
Abstract: 1505317 Catalytic preparation of dioctadienyl phthalate BRITISH PETROLEUM CO Ltd 16 Feb 1977 [27 Feb 1976] 07802/76 Heading C2C Dioctadienyl phthalate is prepared by reacting in a homogeneous liquid phase a C 4  hydrocarbon stream comprising butadiene with phthalic acid in the presence of a catalyst, adding to the reaction products a mixture of water and carboxylic acid to separate the reaction products into an ester-containing solvent/ water phase and recovering the ester and the catalyst from the respective phases.
Patent GB-236260-A (GB)
Title: Improvements in pressure generators
IPC: F02C3/30
Filed: 1924-03-27
Abstract: 236,260. French, G. F. March 27, 1924. Generating combustion products under pressure.-In liquid-fuel burning apparatus for generating combustion products under pressure, for heating purposes or for driving turbines, steam engines &c. the rising temperature of the combustion chamber is utilized to effect the substitution of a heavier fuel for the light fuel, such as petrol, used for starting up, and, when the temperature rises above a fixed limit, to supply water for reducing the temperature. As shown, compressed air from a receiver 1 effects the supply of air, petrol, water, and liquid fuel, the latter three from a divided tank 4, 5, 6, through pipes 14, 7, 8, 9 respectively, the pipes 7, 9 delivering to inlets 7<a>, 9<a>, and the pipes 14, 8 to inlets 14<a>, 8<a> provided in respective casings 12, 13 carried by the refractory-lined generator 10. In the casing 12 is an adjustable tubular element 15 having ports 16, 17 communicating with the petrol and oil inlets 7<a>, 9<a>, while within the element 15 is slidably arranged the end 21, having ports 23, 24, of a, fuelvaporizing tube 22 which passes through the combustion chamber 11 and is connected by a pivoted lever 27 to a similar tube 29, anchored at 32 and delivering to a chamber 30. At starting, the ports 16 and 23 coincide so that petrol is supplied to the tube 22; rise of temperature effects expansion of the tubes 22, 29 which causes the end 21 of the tube 22 to slide within the member 15 until the ports 17 and 24 coincide, thus effecting the substitution of oil fuel for petrol. The casing 13, Fig. 3, is similar to the casing 12, rise of temperature effecting, through the expansion of tubes 37, 41, coincidence of the ports 36, 39 through which a supply of water is induced by the air nozzle 40. The tube 41, which is anchored at 42, delivers to a chamber 43 which is connected through passages 44, 45 and port 47 to an adjustable nozzle 46. The latter is arranged opposite the inlet to the combustion chamber and induces a supply of fuel from the chamber 30, a sparking plug 33 being provided for initial firing. The products of combustion escape through a nozzle 51 arranged in the throat of a Venturi 53 so as to induce a supply of water from a chamber 54. The Venturi 53 is formed on one side with a rack 55 and is adjusted longitudinally by a pinion 56 engaging this rack.
Patent GB-1177816-A (GB)
Title: Improvements in and relating to Weaving
Inventor: HOUWING JAN
IPC: D03D15/56
Filed: 1967-02-20
Abstract: 1,177,816. Shuttleless looms; woven fabrics. SULZER BROS. Ltd. 20 Feb., 1967 [15 March, 1966], No. 7873/67. Headings D1E and D1K. A method of weaving comprises utilising the picking motion to unravel a knitted material and immediately using the unravelled yarn as the weft. The knitted material may be in the form of a tube and a gripper shuttle pulls off the yarn 15 and feeds it to the gripper shuttle 6. The knitted material 17 may be weighted by a ball and may be previously heat set to give a "crimped" yarn. A plurality of threads may be picked simultaneously by the same shuttle from a knitted thread reserve. These threads may have different characteristics such as different colours or different materials.
Patent GB-1042732-A (GB)
Title: Improvements in and relating to synthetic resin articles
IPC: B29C48/32
Filed: 1963-02-27
Abstract: 1,042,732. Extruding synthetic resin material; laminates and laminating. TOKAN KOGYO CO. Ltd., and KAWAMURA Y. Feb. 27, 1963, No. 7890/63. Headings B5A and B5N. A synthetic resin sheet having longitudinally extending cavities 3, Fig. 2 (not shown), separated by partitions 2 is formed by extruding synthetic resin material through a die head 10, Fig. 10, containing a mandrel 17 formed with slots 28, Fig. 12 (not shown), for the shaping of the partitions 2 and with passages 20 for feeding air or a solid or expanded organic filling material into the cavities 3. The extruded sheet is cooled and set between endless metal belts 22 provided with conduits 23 for cooling fluid. The latter are contained in suction chambers 26 by means of which the surfaces of the extruded sheet are drawn against the belt surfaces and shaped and cooled thereby. The synthetic resin material may be fed intermittently to form transverse ridges or partitions within the spaces 3. Also by injecting air in spurts through the passages 20 a sheet having spherical cells (Fig. 9, not shown), may be produced. By using one endless belt only a sheet having one flat surface and one cobbled surface may be produced (Fig. 4, not shown). In a modified apparatus (Fig. 13, not shown), the extruded sheet is passed between cooled stationary surfaces before being engaged between a pair of endless belts, and a layer of cloth, paper, or synthetic resin may be applied to a surface of the extruded sheet between the latter and one of the endless belts. Apparatus for extruding two sheets simultaneously (Fig. 14, not shown) and for extruding tubular shapes (Fig. 18 not shown) are also described.
Patent GB-1391065-A (GB)
Title: Self-locking nuts
IPC: F16B39/284
Filed: 1971-03-29
Abstract: 1391065 Self-locking nuts FIRTH CLEVELAND FASTENINGS Ltd 29 March 1972 [29 March 1971] 8019/71 Heading F2H A self-locking nut comprises a cylindrical threaded portion 6 and a recess which serves as a locking portion the recess being of elliptical cross-section which in a first embodiment has a minor axis equal to the diameter of the bore of portion 6 and a major axis greater than the maximum diameter of thread in portion 6. A thread is formed in the locking portion of equal pitch to that in portion 6 but of reduced diameter. Thus tapped 8 and untapped 9 regions are formed and flexing of regions 9, which have relatively thin walls, occurs when a bolt progresses from bearing face 4, the resilience of regions 9 then creating a self-locking action. The threads in region 8, while incomplete are cylindrical and remain so during locking. In a second embodiment, the major axis is less than the outer diameter of portion 6 thereby resulting in regions 9 being tapped but to a lesser depth than in regions 8. In a modification, the minor axis of the locking portion is less than the outer diameter of portion 6 but greater than the inner diameter. Further, the elliptical recess may taper slightly towards a non-bearing face 3.
Patent GB-1341922-A (GB)
Title: Thermoplastic compositions containing a block copolymer
IPC: C08L23/08
Filed: 1973-05-24
Abstract: 1341922 Copolymer compositions SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 24 May 1973 8066/71 Heading C3P Compositions suitable for moulding shaped articles comprise (a) 95 to more than 60 parts by weight of a copolymer of ethylene with a C 3-5  ester of a saturated monocarboxylic acid and a terminally ethylenically unsaturated alcohol, the copolymer containing 1 to 35 weight per cent of ester monomer units, and (b) 5 to less than 40 parts by weight of a block copolymer A(BA) n  where A is a monovinyl aromatic hydrocarbon block, B is a conjugated diene elastomer block and n is 1 to 5, or a hydrogenated derivative of such a block copolymer, the sum of (a) and (b) being 100 parts by weight. Preferred ethylene copolymers are with vinyl acetate. Preferred block copolymers are polystyrene - polybutadiene - polystyrene and polystyrene - polyisoprene - polystyrene block copolymers and hydrogenation products thereof. The compositions may also contain conventional additives and may be made into shaped articles or foamed.
Patent GB-770239-A (GB)
Title: Improvements in volatile hydrocarbon fuels
Inventor: MITCHELL CECIL ARTHUR ANDREW D
IPC: C10L1/185
Filed: 1955-03-19
Abstract: A volatile liquid hydrocarbon fuel for internal combustion engines contains up to 2 per cent by volume of diacetone alcohol. The fuel may comprise a mixture of mineral hydrocarbons, with or without hydrocarbons produced by destructive distillation.  The fuel composition may also include up to 1 per cent by volume of a refined mineral oil.  Examples of compositions are described which include tetraethyl lead.  Specification 694,965 is referred to.
Patent GB-313655-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25B31/00
Filed: 1928-03-16
Abstract: 313,655. Haslam Foundry & Engineering Co. (1927), Ltd., and Foster, F. H. March 16, 1928. Oscillating - cylinder pumps.-A pump plunger 1 formed with a strap 2 mounted on an eccentric 3 secured to a shaft 6 driven from the compressor shaft of a refrigerating apparatus works in a cylinder 11 formed in a cylindrical member 12 mounted to oscillate in a casing 13 secured to the crank case. During the first part of the suction stroke, lubricant is drawn into the cylinder 11 from the crank case through passages 14, 15, 16. Prior to the end of the stroke, the passage 16 moves out of communication with the passage 14 and a radial passage 20 is uncovered, lubricant then being drawn in from a separator through a pipe 21, a circumferential groove 19 on the member 12, and the passage 20. At the end of the stroke, the groove 19 moves out of communication with the pipe 21, and on the discharge stroke the lubricant is delivered through the hollow plunger, a recess 4 on the eccentric, and a passage 5 to the interior of the shaft 6, whence it passes to the parts to be lubricated. Alternatively, the pump may discharge through the passage 16 to a passage in the casing 13, and the pipe 21 may be adapted to register with a passage leading from the end face of the member 12 to the cylinder 11.
Patent GB-883057-A (GB)
Title: Apparatus for controlling the feeding of stationery in typewriters or like machines
Inventor: GOREHAM PETER ERNEST
IPC: B41J11/38
Filed: 1958-03-13
Abstract: 883,057. Typewriters &c. LAMSON PARAGON Ltd. March 12, 1959 [March 13, 1958], No. 8161/58. Class 100(4) Apparatus for feeding stationery to the platen of a typewriter comprises a manually rotatable wheel 12 which imparts a predetermined feed movement to the stationery by being halted by a projection 22 on a pawl 19 which engages a series of circumferentially spaced stops 34, 34a, 34b, such projection 22 being mounted so it can move past the stops 34 on line-spacing movements imparted to the stationery during the normal typing operation. The stops 34, 34a, 346 are positioned as required by the layout of typing on the stationery and are mounted on a perforated control disc 32 which is easily replaceable by other discs to suit other stationery. These stops are engaged by a pin 22 on a pawl 19 and when it is required to move the setting on to the next step, the disc 12 is rotated. Rotation of the disc 12 pivots a cam 18 a small amount and the tip 18a engages with the pawl 19 and moves the pin 22 clear of the first step. There may be a one-way drive between the platen 3 and a pin wheel drive shaft 5. When the line-spacing mechanism is used, the gearing between the tractor shaft 5 and a shaft 13 supporting the cam 18, ensures that the pawl 19 and projection 22 is moved clear of the stops 34.
Patent GB-140765-A (GB)
Title: Electric meters for alternating currents
IPC: G01R11/36
Filed: 1920-03-19
Abstract: 140,765. Azienda Elettrica Municipale della citta di Milano. March 26, 1919, [Convention date]. Induction motor meters.-In an alternating-current motor meter of the induction type, the armature Z, Fig. 3<A>, counting-mechanism, and brake magnet B are mounted on a frame Q so as to be removable as a whole from the case S<0>, Fig. 1<A>, carrying the magnetic system. The central core M<A> of the series magnet, or a soft-iron pole-piece attached thereto, is adjustable for phase displacement. On the outer arms M are mounted shortcircuited coils S<1>, S<R>. The shunt magnet Nv is formed of laminations of soft iron alloyed with silicon, and has polar extensions N to which is attached a brass cross-piece T. An iron rod S is slidably mounted on the cross-piece T to overcome starting friction. An iron piece F, bent twice at right-angles, is attached at one end to the core and attracts at its free end an iron screw I, Fig. 3<A>, on the armature spindle P. This spindle rests at its lower end on a stone bearing-block in a footpiece P<1> held by a spring m. The upper end of the spindle P is provided with a stone bearing Y, Fig. 3<B>, having a central hole which engages a fixed pin. The brake magnet B is adjustable about a pivot h by means of a screw x, Fig. 3<A>
Patent GB-369740-A (GB)
Title: Improvements in or relating to electric circuit breakers or like circuit rupturing apparatus
IPC: H01H73/50
Filed: 1931-03-17
Abstract: 369,740. Automatic circuit-breakers. RECORD, J. W. and RECORD ELECTRICAL CO., Ltd., Broadheath, Altrincham, Cheshire. March 17, 1931, No. 8179. [Class 38 (v).] Magnetic blow-outs. -The movable contact 23 is held in engagement with the fixed contact 7 by means of a toggle 35, 37, which is connected at one end 31 to the operating handle 29 and at the other end 27 to a spring-member 21 secured to a terminal 19. The above parts are located between side-cheeks 13 of an H-shaped magnet structure, the cross limb 17 of which carries a series coil 15 that produces a blow-out field between the upper ends of the cheeks 13 and a tripping field in parallel to the blow-out field between the lower ends, the latter field acting on an armature 41 to move a member 45 thereon to engage a part 39 of the link 37 and break the retaining toggle. The coil 15 is connected between terminal 19 and a terminal 3 and between the latter and one main terminal is a V-shaped series bimetal strip 51 the free end of which carries an eccentrically-pivoted, adjustable cam disc 55 engaging the free end of the armature 41. If the current increases dangerously, the strip 51 moves the armature nearer the magnet and at the limit the armature is attracted. The core may consist, Fig. 4 (not shown), of two U-shaped plates placed back to back to form an H, and in this form the armature may have a biasing spring and the strip may act directly on the armature and itself engage an adjustable stop. Alternatively, Fig. 6 (not shown), the side cheeks of the core may have flanges bent at right-angles to them and secured together to form the cross limb of the H. The bimetal strip may, alternatively, be energized from an independent source controlled by a press-button.
Patent GB-526367-A (GB)
Title: Improvements in or relating to electric circuit arrangements comprising a valve adapted simultaneously to generate and amplify oscillations of different frequency
IPC: H04J1/08
Filed: 1939-03-14
Abstract: 526,367. Valve circuits; modulating systems. FIDES GES. FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. March 14, 1939, No. 8186. Convention date, March 15, 1938. [Class 40 (v)] In a circuit arrangement of the type in which a single valve generates an oscillation which provides the carrier-frequency for a modulator or demodulator and at the same time amplifies the modulation products, the generated oscillation is made a multiple or submultiple of the carrierfrequency so that it may be easily removed from the amplified output by filtering. Valve V generates an oscillation of 'half the required carrier frequency by back-coupling over the three-winding transformer T2, one winding of which is tuned by means of condenser C1 or C2 selected by switch S. The third winding of T2 is connected to a frequency-doubler circuit G1, G2, T4, condenser C3 tuning the transformer secondary to the required carrier frequency. Rectifiers G1, G2 also act as limiters of the amplitude of the generated oscillation. The carrier-frequency is supplied to a carriersuppression modulator M, the modulating- frequencies being supplied over transformer T5; the side-bands are supplied to the grid of valve V via transformer T3. The amplified modulated oscillation appearing across transformer Tl is separated from the generated oscillation by filter F and fed to output terminals 1, 2. If the filter F is adapted to pass one side-band only, and the carrier frequency is obtained by trebling the generated frequency, then the frequency band passed to the output will be inverted. The second of the condensers Cl, C2, is adapted to tune transformer T2 so as to cause the valve V to generate an oscillation the frequency of which lies within the pass-range of filter F; this oscillation may be used for signalling purposes.
Patent GB-541018-A (GB)
Title: Improvements in and relating to the dividing and weighing of bread dough
IPC: A21C5/04
Filed: 1940-05-07
Abstract: 541,018. Dividing and weighing plastic material. BAKER, B. D., HARBER, L. S., POINTON, J. E. and BAKER, PERKINS, Ltd. May 7, 1940, No. 8206. [Class 143] In apparatus for dividing and weighing out dough for the production of loaves of bread, under-weight dough pieces are placed on a weighing scale and the weight is made up by the automatic addition of dough in an amount equal to the deficiency as determined by the scale, the additional dough being separated from a supply other than by cutting. As shown, underweight pieces of dough are delivered by a rotary dividing drum 2 of known form to the pan 4 of a weighing scale 5 which is then unlocked by the rise of a camoperated locking lever 7. The move-' ment of the locking lever closes a switch 27 thereby energizing a solenoid 24 to disengage a pawl 18 from a ratchet wheel 17 forming part of a friction clutch. The ratchet wheel is now driven by the friction clutch and rotates a pocketed drum 8 to feed a succession of small pieces of dough from a hopper 13 to the scale pan the pieces being extracted from the pockets of the drum by a fluted wheel 15 os a brush. When the correct weight of dough has been reached, a contact 26 in the solenoid circuit is broken by the tipping of the scale, and the pawl 18 re-engages the ratchet wheel 17 to stop the further feed of dough. The locking lever 7 again locks the scale pan, and a cam 38 having an abrupt drop gives s sharp movement to a pivoted flicken bar 33 to remove the dough from the scale pan. The dough may be lifted from the scale pan by a pivoted forked member operating through slots in the pan.
Patent GB-619511-A (GB)
Title: Improvements in or relating to sound transmitter and receiver
IPC: G01S1/72
Filed: 1946-03-18
Abstract: 619,511. Sound transmitting and receiving devices. SUBMARINE SIGNAL CO. March 18, 1946, No. 8300. Convention date, Oct. 8, 1941. [Class 40 (iv)] A sound transmitting and receiving device comprises a casing 1 with a diaphragm at one end having a thin annular portion 10, a thick clamping rim 11 and a central boss 12, a heavy conductive mass element 7, positioned in a magnetic field formed in part by the casing, being attached to the diaphragm through a tapered section 9 decreasing in mass towards the diaphragm. A ring 4 forms one of the pole faces of the magnetic circuit, the casing 1 is a permanent magnet, and the circuit is completed through base-plate 3 and core 2. In the construction shown, the coil 21 energizing the armature 7 is mounted on the core 2, but in a modification the coil may be wound on armature 7 itself.