baber/WOPTO huggingface dataset:
Patent GB-1275050-A (GB)
Title: Improvements in and relating to fluid impeller rotors
Inventor: WALSHAW DENNIS JAMES
IPC: G03G5/06
Filed: 1968-08-22
Abstract: 1275050 Fans EDGAR ALLEN AEREX Ltd 20 Aug 1969 [22 Aug 19681 40147/68 Heading F1C An impeller, e. g. of a fan for a cooling tower, comprises blades 6, Fig. 1, each mounted for angular adjustment sequentially into any of two or more operative pitch settings on repetition of changes of fan speed through minimum values. When the fan is inoperative the blade assumes the position shown, wherein it is releasably held against angular movement by a spring pawl 14 and is biased towards the impeller axis by a spring 12. When the fan is operated, the centrifugal effects move the blade away from the impeller axis and cause an arm 16, extending radially from blade root 7, to move from the position shown in Fig. 3 into engagement with a lobe 20 of a two-position rocker 19, causing the rocker to pivot into the alternative position to that shown whereby it moves the arm and blade angularly and locks them in an operative pitch setting, Fig. 4 (not shown). Subsequent shut-down of the fan causes the blade to move back towards the impeller axis, causing the arm to follow cam wall 24 back to notch 18 without disturbing the rocker. Further operation of the fan therefore causes the arm to engage the other lobe 21 and results in pivoting of the rocker and thus angular adjustment of the blade in the opposite direction to another operative pitch setting. Thus the particular operative pitch setting required is obtained merely by switching on and off a constant speed driving motor or by otherwise effecting a substantial change in fan speed through a minimum value. The value of the operative pitch settings may be adjusted by angularly adjusting a bracket 11 about the blade axis as by bolts (27), Fig. 2 (not shown). The operative pitch settings mayboth be positive, or one may be negative to produce flow reversal. The rocker is releasably held in either of its two positions by a spring pawl (22). In an alternative embodiment, the rocker is omitted and the arm instead follows a circulation cam track, Figs. 6 to 9 (not shown). In another embodiment, the radial arm is replaced by an arm, collar or part-collar which extends axially from the blade root and engages a coaxial cam having, e.g. a saw-tooth track.
Patent GB-952155-A (GB)
Title: Improvements relating to the quantitative analysis of gaseous mixtures
IPC: G01N31/00
Filed: 1962-10-24
Abstract: 952,155. Gas analysis systems. W. SIMON. Oct. 24,1962 [Nov. 9, 1961], No. 40291/62. Heading G1B. A method of quantitatively analysing gaseous mixtures, which contain a specific amount of a rapidly and quantitatively removable component, comprises passing the mixture through a first thermal conductivity analyser e.g. a Katharometer 7, then through a device e.g. an absorption tube 9, which quantitatively removes the component, and subsequently through a second thermal conductivity analyser, e.g. a Katharometer 8, adjusting the flow by means of a cock 3 till it reaches a steady state, and comparing the output signals of the two Katharometers in a measuring instrument 10, which gives a differential signal proportional to the specific amount. The apparatus shown may be used for performing analysis of a single component in a gas mixture e.g. determination of oxygen in organic compounds by distillation of the compound in helium e.g. at 900C., conversion of the cleared oxygen to carbon monoxide by passage over carbon in the tube 9 at 1100C., and subsequent quantitative analysis of the carbon monoxide. A reservoir 6 and a pressure-balancing vessel 5 are provided, cocks 1, 4 controlling the entry and exit of gas to the apparatus. In use, the apparatus, except the reservoir 6, is evacuated and the gas mixture is allowed to flow from the reservoir by opening the cock 3. At the steady state the differential signal of the two Katharometers 7, 8 is measured, and the proportion of carbon monoxide computed. This apparatus may also be used in the analysis of carbon dioxide in the atmosphere, components of flue gases, or combustion products of organic compounds. For simultaneous analysis of several components of a gas mixture, a number of the arrangements shown of the tube 9 and Katharometers 7, 8 are connected in' series (Fig. 2, not shown), the Katharometers being held by thermostats at a constant 25C. Such an apparatus may be used for a carbon, nitrogen, hydrogen determination of an organic compound, which is heated in a stream of helium with potassium chlorate in a combustion tube, the produced gases being analysed after removal of excess oxygen by passage over copper. The hydrogen content is determined by removal of the water produced using phosphorus pentoxide in the first absorption tube, the carbon dioxide is removed using sodium asbestos in the second tube, and the nitrogen is subsequently removed by reaction with magnesium at 600C.
Patent GB-1197995-A (GB)
Title: A process for preparing Calcium Glutamate
IPC: B41J11/27
Filed: 1967-09-06
Abstract: 1,197,995. Calcium glutamate. AJINOMOTO CO. Inc. 6 Sept., 1967 [12 Sept., 1966], No. 40745/67. Heading C2C. Calcium glutamate is prepared by heating a hydantoin derivative of the general formula wherein A is a nitrile, carboxy or carboalkoxy group, together with aqueous ammonia to a temperature above 100 C., whereby the decomposition of its hydantoin ring occurs to liberate carbon dioxide, removing the liberated carbon dioxide, thereafter heating the residual reaction mixture with lime until calcium glutamate is precipitated.
Patent GB-1483293-A (GB)
Title: Process and apparatus for coating a wire
IPC: C23C2/18
Filed: 1974-09-18
Abstract: 1483293 Coating wires by hot dipping SIEMENS A G 18 Sept 1974 [19 Sept 1973] 40751/74 Heading C7F  In the coating of a wire of e.g. Cu with e.g. Sn by hot dipping, the thickness of the coating is controlled by withdrawing it through a nozzle 4 in an outlet chamber, which nozzle does not touch the coated wire. An inert gas is fed to the nozzle arid the gas escapes over the top of the bath as well as along the wire. The outlet chamber may be heated to above the melting point of Sn. The wire may be passed vertically upwards through a bath, the wire passing through an inlet chamber, which is similar to the outlet chamber. In a modification Fig. 3, (not shown) the wire may enter and leave at the upper surface of the bath.
Patent GB-1207621-A (GB)
Title: Induction motor with spherical air gap
IPC: H02K1/12
Filed: 1967-09-06
Abstract: 1,207,621. Electric motors. ACCESSAIR S.A. 6 Sept., 1967 [7 Sept., 1966], No. 40755/67. Heading H2A. The wound stator of a spherical induction motor, Fig. 1, is made of a spirally wound punched strip whose succeeding layers are progressively axially displaced to produce the concave air-gap surface required. The moving member, Fig. 3, consists of a soft iron ring 30 with a copper or aluminium coating 31 having short-circuiting end-rings 32, 33. Preferably this coating is, in turn, faced with a magnetic layer 34, e.g. nickel. Alternatively the moving member may be made of sintered iron segments carrying a squirrel cage cast into position. Harmonics may be reduced by facing the stator air-gap with sheet iron (61) (Fig. 6, not shown). The motor may be used to drive a polishing disc at an adaptable angle (Fig. 6, not shown), or a pump in which the rotor and impeller are axially movable to a rest position but executes a tumbling motion when energized to throw out dirt particles (Fig. 9, not shown).
Patent GB-1472367-A (GB)
Title: Low-viscosity unsaturated polyester compositions hardening with minimal shrinkage
IPC: C08L67/00
Filed: 1975-10-06
Abstract: 1472367 Cellulosic unsaturated polyester compositions BAYER AG 6 Oct 1975 [9 Oct 1974 17 Oct 1974] 40805/75 Heading C3P A curable composition comprises (A) at least one ethylenically unsaturated polyester, (B) at least one olefinic comonomer for said polyester and (c) 5-30 wt. per cent based on the total weight of (A) to (C), of at least one ester of cellulose with an aliphatic monocarboxylic acid, which ester is free from oxidizing agents and has an OH number of 5-25. In an example a composition comprises (A) a propane-1,2-diol/ ethylene glycol/phthalic anhydride/maleic anhydride polyester, (B) styrene and (C) a cellulose acetate butyrate having an OH number of 15. This composition is converted into a moulding composition by the addition of an initiator, CaCO 3  filler, Mg thickener and zinc stearate mould lubricant.
Patent GB-1195284-A (GB)
Title: Improvements in or relating to Spark Chambers
Inventor: HESSELBO TORBEN
IPC: H01J47/10
Filed: 1967-09-06
Abstract: 1,195,284. Recording tracks of particles. SMITH KLINE & FRENCH LABORATORIES Ltd. 6 Sept., 1968 [6 Sept., 1967], No. 40832/67. Heading G6P. [Also in Division H1] Increased resolution and more consistent efficiency over the whole area of the parallel electrodes of a spark chamber detector, used for obtaining a pictorial representation of a radioactive pattern, are obtained by imparting a scanning motion to the chamber. In one arrangement (Fig. 6) the radio-active pattern is located outside and beneath the chamber which is supported on legs 32a and 32b and given a circular scanning movement by arms 31a and 31b pivoted eccentrically on clockwork-driven gear-wheels 28 and 29. In an alternative arrangement (Fig. 7) the radio-active pattern is located inside the chamber on a platform 34 provided with a fixed vertically adjustable support 33. The chamber is closed by a flexible polyester sheet 36 and is provided with supporting legs 32a, arms 31a and gear-wheels 26 as in Fig. 6. In a modified arrangement (Fig. 8, not shown), the flexible polyester sheet is replaced by a rigid closure member on which the walls of the chamber slide with gas-tight seals. The chamber is made of synthetic plastics material and is connected to means providing a throughflow of a mixture of argon and methylal or methane. The two parallel electrodes may be plates or coils but are preferably each in the form of a plurality of stainless steel or tinned copper wires stretched on a frame by individual tensioning nuts (Figs. 1 to 3, not shown). The frames are mounted in parallel planes with the wires of the electrodes mutually at right angles. The wires of one electrode are bent away from the other electrode near their ends (Fig. 9, not shown), and the other electrode is provided with two field control strip electrodes of aluminium near said ends to prevent spurious sparking at these locations. A further field control electrode is located in a rectangular trough in a removable lid of the chamber. A camera is mounted above the chamber.
Patent GB-1134871-A (GB)
Title: Improvements in or relating to twist tube assemblies for twisting fibre or yarn
Inventor: PRINCZ FERDINAND
IPC: D01H7/92
Filed: 1965-09-29
Abstract: 1,134,871. Twist-tubes. T.M.M. (RESEARCH) Ltd. 29 Sept., 1966 [29 Sept., 1965], No. 41405/65. Heading DID. A twist tube assembly 1 for twisting wool or asbestos yarn or fibre e.g. in a ring spinning frame and positioned between the front and back rollers of the drafting mechanism comprises a stationary guide tube 2 through which yarn &c., is passed to a twisting finger 21 on an annular portion 20 carried on and rotated with a tape- or belt-driven wharf 18. Air under pressure is supplied from a main tube 8, through part 15, thence, under the control of a spring-loaded, manually operated valve 12, through duct 14, inlet 13, exit port 11, duct 10, to emerge, when required to assist yarn &c., stringing-up, through inclined port 9 in the tube 2. The tube 8 may be traversed to impart traversing motion to all the twist assemblies carried thereby.
Patent GB-1403044-A (GB)
Title: Electric blanket control circuit
IPC: G05D23/24
Filed: 1972-10-23
Abstract: 1403044 Protective arrangements NORTH ERNELECTRIC CO 23 Oct 1972 [26 Oct 1971] 41417/72 Heading H2K An electric blanket 10 of the kind having a heating element 12 and a sensing wire 14 separated by heat sensitive material has an overload protective arrangement comprising a radiation emitting diode 24 connected in series with the wire 14, and radiation responsive means 26 connected in series with a control device having contacts 20 in series with the element 12. Normally, the current through the wire 14 is such that the diode 24 emits sufficient light for the resistance of a light sensitive resistor 26, e.g. a cadmium sulphide cell, to be low, so that a bimetallic element 22 of the control device is sufficiently heated to maintain contacts 20 closed. Under overload conditions the resistance of the heat sensitive material in the blanket decreases, providing a low resistance path between the element 12 and the wire 14. The current through the diode 24 is reduced, the resistance of the resistor 26 increases and the control device opens its contacts 20. The blanket is controlled by a bi-metallic switch 16, 18 and a manual switch 28. To prevent incorrect operation due to a defective resistor 26, the switch 28 has a fixed contact 28c which is engaged momentarily by the moving contact as the switch is closed. This momentarily connects the resistor 26 directly across the supply so that it fuses if its initial resistance is too low.
Patent GB-973697-A (GB)
Title: Improvements in or relating to lipstick or rouge containers or holders
Inventor: BABIN JACQUES ALFRED
IPC: A45D40/06
Filed: 1960-12-02
Abstract: 973,697. Lipstick &c. holders. GENERAL PLASTICS. Dec. 2, 1960, No. 41505/60. Heading B8P. A lipstick holder of plastics, such as polystyrene and polyethylene, comprises a body 1 having shoulders 2, 3, a rotatable socket member 5 which rests on shoulder 2 and supports a cup 9 elastically interengaged with upwardly extending arms 20, Fig. 2, a sleeve 10 which rests on shoulder 3, is provided with a shoulder 6 which engages socket member 5 and a thicked portion 12 which engages a flared portion 4 of body 1, and slidably mounted within this sleeve a cup member 14 which holds and transports the lipstick B. A stud 15 on the cup 14 projects into a longitudinal slot 16 in sleeve 10 and also into a helical slot 17 formed in the inner surface of socket member 5. Closure shells 22 are supported for rotation about a transverse axis by the arms 20 and their opening and closing is caused by the interengagement of projections 23 within a helical groove 24 formed in a head member 25 which is an extension of sleeve 10. When cap 9 is rotated, simultaneous rotation of socket member 5 occurs causing the cup 14 to move vertically from its position at Fig. 1 (left half) to that at Fig. 1 (right half) by the cooperation of stud 15 with grooves 16, 17. At the same time angular movement of arms 20 brings the shells 22 to the open position. The holder is assembled by push-fitting the components together.
Patent GB-965105-A (GB)
Title: Improvements in or relating to electrical signalling devices
Inventor: MYATT EDWARD RONALD
IPC: H04M1/677
Filed: 1961-11-22
Abstract: 965,105. Impulse transmitters. STANDARD TELEPHONES & CABLES Ltd. Nov. 16, 1962 [Nov. 22, 1961], No. 41792/61. Heading H4K. An impulse transmitter comprises a masking cam which can be engaged with an impulsing cam so as to modify the contour of the periphery of the impulsing cam whereby during impulsing a modified impulse train is generated. The modified impulse train may be used for identifying subscribers on a party line, for conveying class of service information or for preventing the setting-up of unauthorized calls. The masking cam 2, which is mounted on the same shaft as the impulsing cam 1, is spring- urged against the latter cam and is locked thereto by the engagement of a pin 2A with one of a plurality of holes 5 in cam 1. As shown in Fig. 1, the tooth on cam 2 causes a short impulse to be generated after the last impulse of a normal impulse train. The tooth may be shaped so as to cause a lengthened final impulse of a train (Fig. 4, not shown), or it may be shaped so as to " cover " one or more of the detents in the impulse cam (Fig. 5), thereby preventing dialling of certain digits.
Patent GB-890621-A (GB)
Title: Improvements in or relating to the splitting of soft materials
IPC: C14B11/00
Filed: 1959-12-09
Abstract: 890,621. Splitting-apparatus. ORLANDO, E. Dec. 9, 1959 [Dec. 9, 1958], No. 41856/59. Class 31 (1). Apparatus for splitting the edges of soft material 23, e.g. shoe uppers, comprises a rotary knife 1 adjacent to the edge 39 of which is a pressure zone 25 formed by an upper guiding element 3 and a lower driven feeding element 2. The element 2 is in the form of a cone the axis of which is inclined to the plane of the knife, the cone and knife being driven in opposite directions. The element 3 is vertically adjustable and provided with a stop 12. The axle 8 of the knife is supported at the lower end of an angularly-adjustable pivotally-mounted arm 7. The edge of the knife is protected beyond the cutting zone by means of an adjustable element 4 which serves as a lower guide for the workpiece. The depth of split 33 is determined by means of an adjustable spirally-shaped stopplate 34 the position of which is indicated by a scale 15 on the element 3. The workpiece 23 is introduced along the stop 12 and between the elements 2, 3 forming the pressure zone, and on leaving the pressure zone is split by the edge of the knife. The knife edge is sharpened by means of a pivotally-mounted driven grinding disc.
Patent GB-1428396-A (GB)
Title: Ion sources
IPC: H01J27/08
Filed: 1972-09-08
Abstract: 1428396 Ion sources UNITED KINGDOM ATOMIC ENERGY AUTHORITY 16 July 1973 [8 Sept 1972] 41932/72 Heading H1D An ion source includes a hollow tubular electrode 14 into which a gaseous element is introduced through passage 16 to be ionized by a beam of ions of another element. The source comprises an apertured electrode 28 which extracts electrons from a source connected to input port 21 which may be covered by a thin metal foil; a first ionization zone 11 into which the other element is introduced through a passage 24 and where it is ionized by the electrons. These ions emerge through an apertured electrode 20 and pass into electrode 14. Electrode 17 extracts and focuses emerging ions from electrode 14 into a beam. The bore 15 of electrode 14 is initially parallel and then tapered. An electrode 39 maintained negative with respect to electrode 14 prevents electrons from zone 13 passing back into zone 11. An electromagnet 47 improves ionization in zone 11. Parts of the envelope including insulating members 32, 37 and removable cover 27 are sealed together by 0-rings. The output port is connected to an electrostatic accelerator; the apparatus is evacuated by pumps 49, 50. A, He, Ne or H 2  is supplied to the zone 11; Br, Cl, I, O 2  or S is supplied to the electrode 14. Selected ions of the emergent beam may be separated magnetically.
Patent GB-1424606-A (GB)
Title: Process and apparatus for producing perforated seamless tubular films
IPC: B29C48/92
Filed: 1973-09-06
Abstract: 1424606 Perforating extruded films J C HUREAU and J HUREAU 6 Sept 1973 [20 Oct 1972] 42017/73 Headings B5A and B5B An extruding tubular plastics film 19, is perforated by compressed air which is intermittently discharged from the outlets of passages 45 across which the film is drawn, downstream of the outlet of a die passage 15 from which it is extruded. The plastics may comprise high or low-density polyethylene, polypropylene, plasticized or non-plasticized P.V.C., and mixtures thereof. The air is preferably heated to a temperature, e.g. 150 C., close to the melting point of the plastics, and the film drawn from the die may be cut by a blade longitudinally, or spirally, to form a flat film, and may be expanded in passage around a sizing mandrel. The passages 45 are provided in a circular path around a die member 17 whioh, upstream of the passages 45, defines the extrusion passage 15 with a further die part 2. In the Fig. 1 embodiment, the compressed air is delivered from a constant pressure source through a passage 35 and into a chamber 46 of a member defined by parts 22, 39 and which is provided with passages 44 around a peripheral rib formation 42 at which it is urged, by a spring 31, into sealing contact within an annular groove on the underside of member 17 with which the passages 45 communicate. The compressed air is intermittently discharged through the passages 45, as the passages 44 are brought into alignment therewith during continuous, or reciprocating rotation of the member 22, 39. In the Fig. 2, embodiment (not shown) the compressed air from a constant pressure source is supplied to a chamber defined in part by a similar die member having the openings through which the air is intermittently discharged, but with the intermittent discharge of the air being effected upon reciprocation of an obturating member within the chamber, between a position seated in and a position displaced from the annular groove with which the passages communicate. The extrusion and perforating is effected, Fig. 3 (not shown) by downward extrusion and drawing, around a sizing mandrel, into a water cooling bath within which drawing rollers are located, the flattened film passing from the bath, and between delivery rollers, for delivery through a water removal system comprising the edges of a box against which the film is pressed by a roller, followed by rotating brushes engaging the film. The passages 44 are preferably of the same, or larger diameter than that of the passages 45, and may be the same in number as, or smaller than the number of passages 45.
Patent GB-1506490-A (GB)
Title: Control of valves of turbomachines
IPC: F01D17/18
Filed: 1975-10-14
Abstract: 1506490 Turbine valves CREUSOTLOIRE 14 Oct 1975 [14 Oct 1974] 42079/75 Heading FIT [Also in Division F2] The admission or exhaust valves 19 of a steam or gas turbine are controlled sequentially by a bar 12 disposed outside the valve chest 11 and rigid with the two arms of an actuating lever 14 having a spindle 15 mounted in bearings 16, 17. Each valve 19 has a stem 21 with an articulated connection 35 to a control rod 23 itself connected by an adjustable stop 24 and ball-joint (31), Fig. 4 (not shown) to bar 12. Stop 24 is protected by a removable cover. Each valve 19 is biased closed by a spring 27 acting between a plate 26, ball-jointed at 25 to stem 21, and a plate 28 adjustably secured to chest 11 by rods 29. Actuating lever 14 is pivotally moved by a rod (32), ball-jointed thereto.
Patent GB-1445139-A (GB)
Title: Process for producing hydrogen fluoride
IPC: C01B33/18
Filed: 1973-09-10
Abstract: 1445139 Hydrogen fluoride production; silica R S REED 10 Sept 1973 [18 Sept 1972] 42523/73 Heading C1A A process for the production of hydrogen fluoride comprises (a) forming a mixture of silicon tetrafluoride, water vapour and air; (b) flame hydrolysing the silicon tetrafluoride at a temperature of at least 1500‹ F. to produce silicon dioxide particles, the silicon dioxide having an averse primary particle size in excess of 0À1 microns, and hydrogen fluoride; (c) promoting agglomeration of the silicon dioxide particles by direct cooling of the reaction products and separating the silicon dioxide, the temperature of the reaction product gas stream being maintained at at least 900‹ F. during the cooling to agglomerate the silicon dioxide and the separation thereof; and (d) recovering the hydrogen fluoride. The reaction products of the flame hydrolysis are preferably cooled to between 500‹ and 800‹ F. below the flame temperature, e.g. to 1000-1500‹ F. The flame hydrolysis temperature is preferably in the range from 2000-3000‹ F. The ratio of the available water to the stoichiometric requirement of water for the flame hydrolysis reaction is preferably in the ratio from 2 : 1 to 15 : 1.
Patent GB-986308-A (GB)
Title: Production of refractory grain
IPC: C04B35/12
Filed: 1963-10-30
Abstract: Low silica chrome ore (-3, + 100 size) is mixed with powdered magnesium hydroxide, roasted to remove free and combined water but not to dead burn, briquetting, then dead burning at 3100 DEG -3500 DEG  F.  10-50% of previously formed briquettes can be added to the briquette feed.