baber/WOPTO huggingface dataset:
Patent GB-933691-A (GB)
Title: Improvements in or relating to means for measuring and regulating a quantity of tobacco fed to a cigarette making machine
Inventor: BELL ARTHUR
IPC: A24C5/34
Filed: 1958-12-31
Abstract: 933,691. Cigarette - making machines. AMERICAN MACHINE & FOUNDRY CO. March 14, 1960 [Dec. 31, 1958], No. 42195/58. Class 130. [Also in Group XXXV] In an arrangement in which one stream of tobacco is added to another on a conveyer, the rates of feed of the two separate streams are automatically controlled in response to detected variations in the bulk density of one of them, to produce a composite stream of uniform density. In a cigarette-making machine of the continuous rod type, Fig. 1, tobacco in a main hopper 1 having a carded roll 4, is removed by a picker roll 5 and showered on to a conveyer belt 6 by a winnower 7. The tobacco on belt 6 is compressed by a roll 10 and mostly passes to a concave plate 11 from which it is showered by a picker roll 12 on to a conveyer belt 16. A selected portion of the width of the compressed tobacco from belt 6 is, however, fed to a vibrator shoot 19 leading to a hopper 26, Fig. 4, having a carded roll 30, from which it is showered by a picker roll 36 on to a conveyer belt 24. There it is mixed with the supply from belt 16 which is compacted by belt 23. Variations in tobacco density are detected by a radiation and/or dielectric type gauge 25 the output of which controls a motor 108 and thereby varies through a differential gear the speed of roll 30, the main drive to which is from a constant-speed motor 104. The rate of feed from hopper 26 is thus adjusted to compensate for short-term variations in density. Long-term variations are corrected by applying the output of detector 25 through an integrator 126, 128 to control a motor 132 varying the speed of drive from a fixed-speed motor 135 to the main hopper and belt 6. Control of more than two feeds is referred to. The Provisional Specification, which gives more detail of a known type of cigarettemaking machine, discloses cam-operated contacts connecting the density detector only when it is examining a portion of the rod corresponding to a cigarette to be cut later.
Patent GB-962571-A (GB)
Title: A new process and apparatus for obtaining textile end products using discontinuous fibres
Inventor: MASUREL MICHEL
IPC: D01H1/11
Filed: 1960-12-08
Abstract: 962, 571. Spinning processes; knitting;looms combined with spinning machines. INDUSTRIELLE & COMMERCIALE PARIS-NORD. Dec. 5,1961 [Dec. 8, 1960], No. 42216/60. Headings D1C, D1E, D1F, D1K and D1W. Sliver of discontinuous or broken fibres is drawn to the fineness of a required yarn, it is given a "provisional" twist and fed directly to the machine by which it is made into a fabric or article. Two or more yarns, provisionally twisted in the same or opposite directions, may be combined and given a further provisional twisting prior to the direct feed to the machine. The provisional twist is retained long enough to enable manufacture of the fabric and the fibres of the yarn and yarn cohesion are maintained therein by mechanical interlacing of the yarn(s) as in weaving, knitting, chain stitching or braiding. As shown in Fig. 1, sliver fed through a drawing frame 2 is temporarily twisted by passage through an eccentric hole 5 in a disc 3, which is rotated in a continuous or intermittent manner in one or other direction and corelated with the yarn feed speed, and fed to a machine 1 e.g. a loom or a flat or circular knitting machine such as a full fashioned, tricot or Raschel machine. Several such apparatus may supply one machine and the apparatus(es) operate(s) continuously or intermittently according to the type of machine. In a modification (not shown) the sliver is twisted by passage around, and frictional contact with, the periphery of a rotated rubber-covered cone. As shown in Fig. 4, two (or more) slivers N-N<SP>1</SP> pass through a multiple drawing frame 2 and are separately twisted by devices 3, 3<SP>1</SP> into yarns 6, 6<SP>1</SP> which are combined in a twisting device 8 to form plied yarn 7a. The starting material may be filamentary tow which may be broken into discontinuous fibres by the stretching action of the drafting rolls and/or it may be fed to the front rolls for combining with discontinuous fibres.
Patent GB-1300305-A (GB)
Title: Process for the selective separation of rare earth metals from their aqueous solutions
IPC: C01F17/224
Filed: 1970-09-04
Abstract: 1300305 Rare earths MOLYBDENUM CORP OF AMERICA 4 Sept 1970 ]12 Sept 1969] 42345/70 Heading C1A The proportion of a rare earth metal in a mixture of rare earth metal values in aqueous solution is increased by contacting the solution with a water-immiscible-organic extractant comprising a quaternary ammonium or phosphonium compound mixed with an oxime, a carboxylic acid, an organo phosphoric acid or an organic phosphate. The process can be adapted for the preferential extraction of certain rare earth metal values or yttrium values from other rare earth metal values; the latter by contacting the aqueous solution in a nitrate medium (e.g. of an alkali, alkaline earth, aluminium or ammonium nitrate, of pH 0 to 6 with the above organic extractant.
Patent GB-1174847-A (GB)
Title: Improvements in or relating to Water Softening Apparatus
Inventor: BRANE EARL PERVIENCE
IPC: C02F1/42
Filed: 1967-09-18
Abstract: 1,174,847. Ion-exchange. BORGERUD MFG. CO. Inc. 18 Sept., 1967, No. 42390/67. Heading B1J. In a softening operation valves 161 and 162 are closed and pistons 82 and 112 assume positions shown: Water flows from 96 into chamber 41 through to chamber 42 through passage 47 into zeolite 11; is softened- and flows via openings 15, tube 12 through chamber 45 through insert 37 and chamber 43 to soft water outlet 97. A by-pass using lever 101 is available. During regeneration valves 161 and 162 are opened and the pistons move to allow a back wash 96, 41, 40, 100, 43, 45, 12, 15, 11, 47, 42, 90 to drain 67. Brining is initiated by closing drain valve 161 which allows a flow 96, 41, 40 via a venturi passage (Fig. 3 not shown) which draws in brine 12, 15, 11, 47, 42, 90 out of drains 67 and 160. Valve 161 is now opened for another backwash and the valves 161 and 162 are closed for a repetition of the softening operation.
Patent GB-1365782-A (GB)
Title: Prilled ammonium nitrate composition
IPC: C01C1/18
Filed: 1972-09-13
Abstract: 1365782 Prilled ammonium nitrate composition MITSUBISHI CHEMICAL INDUSTRIES Ltd 13 Sept 1972 [27 Sept 1971] 42530/72 Heading C1A A prilled ammonium nitrate composition comprising a petroleum hydrocarbon having a boiling point of at least 150 C. and a melting point of not more than 20 C. and at least one anti-caking agent selected from a magnesium, barium, lead, calcium, zinc, copper aluminium or cadmium salt of a fatty acid having from 7 to 22 carbon atoms and each salt having a melting point of at least 40 C., magnesium aluminate silicate or a compound of formula wherein R1 and R3 which may be the same or different are each alkyl groups having from 10 to 20 carbon atoms and R2 is an alkylene group having 1 or 2 carbon atoms, the amount of said petroleum hydrocarbon being 0À05 to 1% based on the weight of the prilled ammonium nitrate is prepared by optionally aerating prilled ammonium nitrate containing from 2 to 10% by weight of water at a temperature of from 40 to 90 C. adding a drying aid thereto and drying the resulting mixture at the aerating temperature or a higher temperature and then blending with said petroleum hydrocarbon and anticaking agent. The prilled ammonium nitrate may be aerated at from 60 to 90 C., the drying aid may be added thereto in a pan type pelletizer and the resulting mixture may be aged at 50 to 80 C. for 5 to 30 minutes and then dried in a fluidizing inert gas, e.g. air, nitrogen or carbon dioxide. The anti-caking agent may be added in an amount of 0À05 to 0À5% based on the weight of the prilled ammonium nitrate.
Patent GB-426390-A (GB)
Abstract: 426,390. Ticket - issuing machines. BELL PUNCH CO., Ltd., 39, St. James's Street, London. June 30, 1933, No. 5692/35. Convention date, April 10, 1933. Divided out of 426,326 under which a Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 1, 1934. [Class 106 (iii)] In ticket-issuing machines as described in Specification 426,326, in which a strip is fed forward by printing rollers, which rotate through one revolution per ticket or cycle, and is cut off by knives carried by the rollers and operating along the common normal, tickets of varying pre-determined length are issued, the rollers being of variable circumferential length or replaceable by other rollers of the same diameter but of different circumferential length. The strip is automatically aligned for cutting to correct errors in feeding as soon as it is released by the rollers. The strip is fed upwardly between guides 1, 2, by rollers 3, 4 geared together and driven when required from the motor 6, cutting knives 9, 10 or perforators being operated on the completion of a revolution. The severed ticket is ejected by rollers 11, 12. The printing roller 4 carries replaceable printing elements 7 and an adjustable mounting or dating element 8. The strip is aligned before cutting by a finger 13 engaging holes therein, the finger being pulled by a spring back into the position shown in full lines. To ensure that this correction can be made, the feed of the rollers exceeds slightly the length of ticket. The finger 13 is pivotally mounted on a lever 21 by which it may be disengaged by hand. The bracket 17 carrying the finger and lever may be secured in different positions.
Patent GB-1490315-A (GB)
Title: Active breakdown circuits for increasing the operating range of circuit elements
IPC: H03K17/10
Filed: 1975-10-17
Abstract: 1490315 Transistor amplifiers SIGNETICS CORP 17 Oct 1975 42767/75 Heading H3T To allow extension of the operating range of supply voltage V to circuit elements, for example comprising generalized circuit 116, a transistor 103 is connected in the supply feed, with a bias 108 which keeps the base-emitter junction forward biased and the base-collector junction reverse biased, and with a rectifier such as diode 111 to prevent reverse base current, so that under elevated supply voltage V breakdown of transistor 103 occurs under the openbase condition, the collector-emitter voltage drop thus reducing the effective supply voltage applied to the elements of the circuit 116. The circuit 116 may comprise a transistor with a diode string from a bias line to bias the bases of both the protected and protecting transistors (Figs. 3A-3C, not shown). Alternatively a complementary series pair of transistors with common bases and common emitters, forming a single-ended push-pull amplifier, may be driven from the supply line via a protecting transistor of the same type as the member of the pair whose collector it feeds; in this case the bias is taken from the supply line via a constant current source of high-valued resistor, leading to a diode string (Fig. 4B, not shown). In a third embodiment (Fig. 5C, not shown) an amplifying transistor carries a protecting transistor fed from a supply line via a constant current source, the protecting transistor also acting to increase the output impedance in a cascode circuit. In the absence of diode 111 excess supply voltage would with the onset of avalanche breakdown cause the a of the protecting transistor 106 to exceed unity, the # to become negative with reverse base current, any resistance in the base bias line then tending to increase the collector current, leading to runaway.
Patent GB-1318494-A (GB)
Title: Process for preparing a lactulose powder
IPC: A23L1/00
Filed: 1971-09-15
Abstract: 1318494 Luctulose powder MORINAGA MILK INDUSTRY CO Ltd 15 Sept 1971 [31 May 1971] 42999/71 Heading C2C A process for preparing a lactulose powder having a solids content containing at least 55% by weight of lactulose, comprises mixing an aqueous solution containing lactulose in an amount of at least 60% by weight of the total solids content with an aqueous solution of konnyaku powder containing at least 0À3% by weight of konnyaku powder based on the weight of the lactulose, if necessary adjusting the pH of the resulting solution to below 7, and drying the solution to form the lactulose powder. (Konnyaku powder is stated to be commercially available and to consist of the dried powdered corm of Amorphosphallus konjac.)
Patent GB-1104308-A (GB)
Title: Check-valve
IPC: F16K15/08
Filed: 1966-09-27
Abstract: 1,104,308. Valves. J. B. RATELBAND. 27 Sept., 1966 [27 Oct., 1965], No. 43105/66. Heading F2V. Check valve comprises an annular ring closure 11 which is shaped as shown to form in open position the forward continuation of a streamlined annular form completed by a fixed member 14. The closure enlarges conically from its forward end, the conical sides merging into curved rear parts as shown. The closure seats within two seat rings 8, 10 of elastic material such as rubber. Each ring has a free lip portion which embraces the curved parts in closed position. The rings are located in carriers 7, 9. Carrier 7 is clamped between two parts if a fixed bullet 3, 5 supported by ribs 4 from the body. The form 14 is similarly supported. The valve is guided by hollow stems 12 in the form 14 and loaded by springs 17.
Patent GB-1481333-A (GB)
Title: Coolant for rotary engine
IPC: F01P11/00
Filed: 1974-10-04
Abstract: 1481333 Coolant for rotary engine DOW CHEMICAL CO 4 Oct 1974 [4 Oct 1973] 43181/74 Heading C4X A coolant for a liquid-cooled rotary internal combustion engine comprises an aqueous solution of a propylene glycol monomethyl ether. The ether may either by 1-methoxy-2- propanol or 2-methoxy-1-propanol and mixtures of the isomers may be used. Corrosion inhibitors, antioxidants, antifoam agents, lubricants, leak stroppers and other additives may also be present.
Patent GB-892457-A (GB)
Title: Improvements in or relating to hall effect devices
Inventor: EVANS JOHN FAWCETT OGILVIE
IPC: H03C1/48
Filed: 1959-12-21
Abstract: 892,457. Amplitude modulation systems. SMITH & SONS (ENGLAND) Ltd., S. Dec. 15, 1960 [Dec. 21, 1959], No. 43316/59.. Class 40(5). [Also in Group XXXVI]  Fig. 3 shows a Hall plate of rhombic shape used as a modulator. Coil 12 surrounding the central limb is fed with an A.C. of the carrier frequency and is provided with a resistor and capacitor for phase adjustment. The modulating current is applied to leads 4 in one of which is included a potentiometer 16 and a coil 17 wound on the same core as coil 12. Voltage induced in coil 17 is used to balance spurious voltages induced in the input lead. Loop 6 performs a corresponding function to coil 17 for the output connections. The output of the device is connected to an amplifier 23.
Patent GB-1399987-A (GB)
Title: Slider for slide fasteners
IPC: A44B/
Filed: 1973-09-14
Abstract: 1399987 Sliding clasp-fasteners YOSHIDA KOGYO KK 14 Sept 1973 [19 Sept 1972] 43356/73 Heading E2S A sliding clasp-fastener 10 having an entrance end 20, 20, and an exit end 18, and which comprises top and bottom wings 11, 12 respectively interconnected by a neck 13 at one end, a bail 14 projecting upwardly from said top wing 11, a pull tab 15 pivotally connected to said bail, and spaced side flanges 16, 16' integral with said top wing 11 and defining therebetween a substantially Y-shaped element guide channel 17, 17 is characterised in that the distance W between the flanges 19, 19', as measured from their outer peripheries at the exit end 18 is greater than the corresponding distance W' at the entrance end 20, 20 and in that said flanges are provided with tape guide rails having a width greater at the exit end, rendering the contour of the slider body substantially triangular. As shown in Fig 3, a slider 10 is mounted upside down on a slider holder 21 and two stringer tapes T, T' attached to a garment G, are manipulated, one after the other, through the entrance end 20 into the guide channel 17, the relative positons of the rows of fastener elements E being connected by pulling the tapes T, T' back again through the slider 10 in the fastener opening direction. The enlarged rails 19 prevent the coupling head portions Ea from rising above their normal line of engagement and becoming caught in the exit end as shown in Fig 4.
Patent GB-978022-A (GB)
Title: A discharge device for the heavy material in separating apparatus
IPC: B03B5/24
Filed: 1962-11-16
Abstract: 978,022. Washing granular material. KLOCKNER-HUMBOLDT-DEUTZ A.G. Nov. 16, 1962 [Nov. 17, 1961], No. 43429/62. Heading B2H. A separating apparatus for material in accordance with the respective specific gravities of the different constituents thereof comprises a discharge device for the heavier material comprising a discharge shaft and within said shaft a bucket wheel arranged to be driven at constant speed, and a slide-gate which is formed by a part-cylindrical plate is pivotally mounted about the axis of the bucket wheel and closely surrounds the latter, and is arranged to be angularly displaced across the outlet opening of the discharge shaft and to be adjusted in its angular position by the amount of heavy material to be discharged through the discharge shaft. As shown, such an apparatus comprises a bucket wheel 6 mounted in the discharge shaft 4, 5, the bucket wheel rotating at constant speed and provided with a slide 7 upstream of the bucket wheel (viewed in the direction of the flow of material). The slide may be constructed in the form of a partial cylinder (as shown) or in the form of a complete cylinder (not shown) provided with openings for the passage of the material and surrounding the bucket wheel directly. In the latter form at least one opening is necessary for the entry of the material into the bucket wheel and one opening for discharge from the pockets thereof. As shown, the slide is provided with recesses 10 starting from the opening edge of the slide and widening out towards the discharge edge, and each rib between recesses may end in a point (not shown). The minimum width of the recesses should correspond to the particle size of the coarsest material. Preferably the shaft opening facing and above the bucket wheel is provided only on one side of the vertical line through the axis of the bucket wheel. In operation, material on the settling bed 1 is stratified by gravity. The height of the bottom layer to be discharged through the shaft is sensed by means of a float (not shown) connected to the slide 7. Heavy material, e.g. waste, is discharged through the shaft and lighter material, e.g. coal and middlings, passes over weir 2 to a second settling bed 3. The bucket wheel 6 rotates at constant speed, and the slide 7 is movable over an arcuate path under the action of the float so that it faces the opening 8 to a greater or lesser extent, as the layer of heavy material grows or diminishes thus controlling the filling of the pockets of the wheel and hence the amount of material discharged during its rotation.
Patent GB-1133592-A (GB)
Title: Improvements in fluid temperature controls particularly for gas turbine engines
IPC: F15C1/00
Filed: 1966-09-29
Abstract: 1,133,592. Gas turbine fuel systems. GENERAL ELECTRIC CO. Sept. 29, 1966 [Oct. 22, 1965], No. 43488/66. Heading F1G. [Also in Division G3] In a system for controlling the speed of a gas turbine engine which is insensitive to ambient temperature variations, a pneumatic signal generator 20 driven by the engine generates two sinusoidal signals, one of which enters a resonator 22 which generates a reference signal which is fed to decoupler 24 and amplifiers 26, 28togenerate signals P r , P r <SP>1</SP>, which are 180 degrees out of phase. When the reference signal frequency equals the resonant frequency of resonator 22, the signals P r , P r <SP>1</SP>, when matched against the other signal Pg of generator 20 by phase discriminator 30, produce equal outputs from the latter to transducer 32. If the speed changes, the signal frequency from generator 20 will change and the discriminator will provide a differential output to vary the fuel-flow to the engine via control unit 34. The resonant frequency of resonator 22 is varied by varying the volume thereof by means of piston 42. Since the resonant frequency is also a function of temperature, the resonator is continually flushed with a gas maintained at constant temperature. The gas is supplied from plenum chamber 66 which receives a mixture of relatively cool air from the compressor and hot gas from the combustion chamber, these streams being directed to the plenum chamber via respective monostable fluid switches 50, 52 Fig. 2 (not shown) and vortex restrictors 94 under the control of bi-metal flapper 82 contained in the plenum chamber.
Patent GB-1446160-A (GB)
Title: Process for the production of polyamides with dyeability for  basic dyes
IPC: C08G69/42
Filed: 1973-09-28
Abstract: 1446160 Basic dyeable polyamides BAYER AG 28 Sept 1973 [28 Sept 1972] 43558/75 Divided out of 1442651 Heading C3R A process for producing a linear sulphonate group containing polyamide comprises (a) reacting an excess of an alkylene diamine with an alkali metal salt of halobenzyl sulphonic acid to form the interval salt of the corresponding N-sulphonatobenzyl diamine and the corresponding alkali metal halide, (b) converting the sulphonate groups of the interval salt to alkali metal salts by adding an alkali hydroxide and (c) condensing the resulting product with 15 to 50 mol per cent of an alkylene or phenylene dicarboxylic acid (or its methyl or ethyl ester) and 70 to 0 mol per cent of an alkylene amino acid or lactam or stoichiometric mixture of an alkylene dicarboxylic acid and an alkylene, cycloalkylene or arylene diamine until the resulting polyamide has relative viscosity of 1À1 to 3À5 (1 g./100 ml. in cone. H 2 SO 4  at 25‹ C.) and a melting point of 150‹ to 300‹C. The interval salt may be isolated following addition of an alcohol between steps (a) and (b). In both specific examples the reactants are (a) hexamethylene diamine and 4-sulphonatobenzyl chloride sodium salt, (b) NaOH and (c) adipic acids; the products have a melting range of 222-229‹ C., sulphonate group content of 780 milliequivs./kg. and RV of 2À28 in Ex. 1 and 213‹ to 224‹ C., 1030, and 1À91 respectively in Ex. 2. Various other possible reactants are mentioned.
Patent GB-992986-A (GB)
Title: Polymerisation process
Inventor: BARTON JOHN MICHAEL
IPC: C08G2/00
Filed: 1962-11-17
Abstract: Trioxane is polymerized or copolymerized in the presence of a polymerization catalyst comprising a complex formed from a carboxylate of copper, zinc, cadmium, iron, cobalt, nickel or tin and an organic acid halide.  Specified carboxylates include zinc acetate, zinc benzoate, zinc formate, tin oxalate, cadmium stearate and cadmium acetate, all preferably anhydrous, while acetyl chloride is the specified halide. The complex may be prepared separately or in situ, while the polymerization may take place in bulk, in solution, e.g. in cyclohexane or 1-2-dichlorethane or in dispersion.  A chain transfer agent may be present.  The product may be esterified with carboxylic acids or anhydrides or etherified or reacted with isocyanates or diisocyanates.ALSO:Catalysts used for polymerizing trioxane comprise a complex formed from a carboxylate of copper, zinc, cadmium, iron, cobalt, nickel or tin and an organic acid halide.  The complex may be prepared separately or in situ. Specified carboxylates are zinc acetate, zinc benzoate, cadmium acetate, zinc oleate, zinc stearate, zinc formate, zinc oxalate, iron-III-acetate, copper-II-acetate, cobalt acetate, nickel acetate, cadmium stearate and tin oxalate, all preferably anhydrous, while acetyl chloride is the specified halide.  The mole ratio of halide to carboxylate is normally greater than or equal to 1:1 and is specially preferred to lie between 2:1 and 4:1.