baber/WOPTO huggingface dataset:
Patent GB-867803-A (GB)
Title: Improvements in or relating to thixotropic pharmaceutical compositions and their manufacture
IPC: A61K9/00
Filed: 1959-08-24
Abstract: A resin/drug compound is prepared by contacting "Amberlite" (Registered Trade Mark) IR-120 (in the hydrogen form) with an aqueous solution of dihydrocodeinone bitartrate with stirring. The compound contains about 26,22% by weight of the drug.  The resin/drug compound is dispersed in water in the presence of air and using a colloidal thixotropic suspending agent.  Compositions with specified therapeutic agents are described.ALSO:Thixotropic medicines comprise a stable aqueous suspension of a water-insoluble drug and air in a medium including a suspension of a potassium salt of a sulphuric ester of a high molecular weight polysaccharide obtained by water extraction of the seaweed Furcellaria fastigiata as thixotropic agent.  The compositions may be prepared using a conventional double chambered dispersator in which the thixotropic agent is blended into the aqueous medium by mechanical and hydraulic shearing action which also aerates the composition, the water-insoluble drug being added subsequently.  A specific example relates to a suspension of dihydrocodeinone "resinate" (see Group IV (a)), other specified drugs which may be used are: antibiotics, e.g. procaine penicillin, chloro-mycetin, erythromycin stearate; gastro-intestinal agents, e.g. aluminium hydroxide and phosphate gels, polyamine methylene resins, magnesium trisilicate, kaolin and bismuth subcarbonate; diuretics and cardiovascular agents, e.g. theophylline; vasodilators, e.g. quinidine; steroids, e.g. progesterone and testosterone and, particularly, sulpha-drugs, e.g. sulphamethazine, sulphadiazine, sulphaethyl-thiadiazole, sulphaguanidine and sulphamerazine.
Patent GB-192478-A (GB)
Title: Improvements in or relating to glass counters, show cases and the like
IPC: A47F3/12
Filed: 1921-11-01
Abstract: 192,478. Sage & Co., Ltd., F., and Hawes, S. C. Nov. 1, 1921. Counters and like stands.-A knock-down glass counter or showcase &c. comprises top and bottom frames 1, 2 consisting of separate front, back, and side rails 5, 7, 6 of channeled section metal to receive glass panels, separate channeled corner standards 3, 4 and means whereby the whole may be assembled by bolts extending through the parts 3, 4. Each rail 5 -7 has a depending flange 8 lying against the side surface of a wooden base 9 which may be covered with parquet &c. at 10. The rails 5, 6 have single grooves but the rail 7 has a double groove to receive two sliding glass doors or panels which preferably run on rollers 13. The top and side rails 14, 15 have single grooves while the back rail 16 has double grooves, which are stepped to provide a rabbet 17 on which, and on flanges 18 of the rails 14, 15, the glass forming the top of the case &c. rests. One of the grooves in each standard 3, 4 contains fixing bolts 19 which pass through the base 9 and through L-shaped blocks 20, preferably brazed in position in the corner joints of the frame, and screw into similar blocks in the upper frame 2. The blocks may have lugs 21 to register with the grooves in the standards 3, 4. The case may be mounted on adjustable legs.
Patent GB-333430-A (GB)
Title: Improvements in bearings for spinning spindles
IPC: D01H7/20
Filed: 1929-09-25
Abstract: 333,430. Eifert, O. Sept. 25, 1929. Spindle apparatus; spindle rails. -The upper bearings of mule spindles are supported between the bottom of a lubricating trough and the cover, and are adjustable relatively to the cover and secured thereby after they have adjusted themselves to the spindles, a wick extending along the trough serving to lubricate the spindles through tangential slots in the bearings. The lower end of each bearing g is supported in a boss f mounted in the bottom of the trough a, and a spherical surface l on the upper end abuts against a correspondng concave seating in the cover n, so that the bearing is capable of slight oscillatory movement about the supporting boss f, but is prevented from rotating by means of a flange k having a flat portion on its periphery which bears against the wall of the trough. The bearings are allowed to align themselves with their spindles after which they are clamped by tightening the screws o. A lubricating wick r extends the length of the trough and contacts with the spindles through tangential slots in each bearing, and is provided with depending tufts of yarn at intervals to draw up lubricant from the bottom of the trough. The front s of the trough is mounted on hinges v provided with a spring catch v<1> so that access can be had to the lubricating band for oiling purposes.
Patent GB-1476377-A (GB)
Title: Needle thread tensioning module in a lockstitch sewing machine
IPC: D05B73/00
Filed: 1974-07-01
Abstract: 1476377 Sewing machines: thread tensioning SINGER CO 1 July 1974 [23 July 1973] 29062/74 Heading D1G A needle-thread tensioner with adjustable pressure on its discs is assembled on a bracket 50 which is then mounted as a module in a sewing machine with an adjusting wheel 82 projecting beneath the arm. The discs 58, 59, 60 are mounted between two partitions 95, 110 the former having a groove 99 in which the hook 102 of the check spring can move. The discs are pressed together by a pin 61 with an enlarged head 62 at one end, and attached to a lever 71 at its other end. The other end of the lever is pressed by a coil spring 77, and the fulcrum 88 (Fig. 4) is movable to regulate the thread tension. The fulcrum comprises fingers 88 on a member 78 which can be moved lengthwise by rotating the wheel 82, a notch 80 on the member embracing a crank pin 81 on the wheel. Two threads may be tensioned by placing one each side of the central disc. Tension is relieved when the presser foot is raised by the presser foot lifting lever 120 raising a lever 124 which, through a wire 126, rotates a bell crank lever 127 to press on the lever 71.
Patent GB-918930-A (GB)
Title: Improvements in or relating to the manufacture of polyamide filaments
Inventor: FREEMAN RONALD FRANK JAMES
IPC: D01F6/60
Filed: 1960-08-23
Abstract: In the manufacture of polyamide filaments by melting polycaprolactam chips at 250 DEG -295 DEG C. under an inert gas at a pressure of 0,5-5 atmospheres and melt spinning the polyamide, the chips have been washed with water but not dried or only incompletely dried and contain over 1/4 % by weight of water and the polyamide is maintained in a molten condition for a period not exceeding in minutes the expression:- <FORM:0918930/IV(a)/1> in which e=the base of the natural logarithms, T=temperature in  DEG C., P=pressure in atmospheres of inert gas, E=sum of the free amine and carboxyl end groups in the polymer expressed in gram equivalents per million grams.  The determination may be carried out on a sample of the polymer taken from the melt pool or on a sample of the extruded filaments.  The earlier stages of the washing of the chips may be carried out with aqueous solutions, e.g. of caprolactam, pure water being subsequently used.  The time during which the polyamide is maintained in a molten condition is preferably not more than 80% of the specified maximum permissible period.  The inert gas may be nitrogen, steam, helium or hydrogen, preferably steam at within 3% of the prevailing atmospheric pressure.  It is preferable to use polyamide chips containing over 3 1/2 % of water, e.g. up to 7% or over provided their water content is not so high as to cause caking or paste formation.  Specifications 461,237, 653,757, 676,585, 747,913, 813,527, French Specification 882,461 and U.S.A. Specification 2,241,321 are referred to.
Patent GB-633523-A (GB)
Title: Improvements relating to leaves for loose leaf binders
IPC: B42F3/00
Filed: 1947-10-31
Abstract: 633,523. Visible card indexes. KALAMAZOO Ltd., and POWER, R. F. Oct. 31, 1947, No. 29086. [Class 146 (i)] The leaves of a visible card index are provided at the centre of the binding edge with a broad notch of Vee or curved form extending across the margin. By this construction the overlapping leaves lie close together at the binding edge and the hinge action on turning the leaves occurs without risk of tearing or forming a fold line. The apex e of the Vee and the angles d between the Vee and straight parts c at right-angles to the edge may be rounded. The notches may be of semi-circular, semi-elliptical or other curved form, but must not be of a form involving a straight edge parallel to the binding edge.
Patent GB-796088-A (GB)
Title: Muffle type furnace with movable sectional furnace shell
IPC: F27B5/04
Filed: 1956-09-24
Abstract: 796,088. Muffle furnaces. ELECTRIC FURNACE CO. Sept. 24, 1956 [April 18, 1956], No. 29101/56. Class 51 (2). A continuous muffle furnace for bright annealing stainless steel strip comprises a heatresisting alloy muffle 21 mounted on piers and strut assemblies as in Specification 794,800, and furnace shell sections 20, 20a and 20b independently movable longitudinally relative to the muffle 21. The latter is connected to an entrance vestibule 22 mounted on rollers 48, to a water-jacketed cooling section 24, and to the furnace shell section 20b through anchor members 32 attached thereto. 'Each shell section has rails 42 riding on rollers 43, and has vertical tubular members 56 extending through the lining 29 and the piers 34 to engage lugs 55 on the muffle. Expansion or contraction of the muffle will thus lead to corresponding movement of each independent section, and also of the vestibule upon its rollers 48. The furnace may be heated by burners disposed in tangential openings 31 or by electric elements. The strip enters or leaves the muffle through restricted openings 71 and 72, respectively, and is supported therein by rollers 50 extending through tubular members 51 to bearing assemblies 54 outside the furnace shell. A protective atmosphere such as hydrogen or dissociated ammonia is preserved in the muffle. Sealing rings 57 at the joints between shell sections each comprise a channel member 58, Fig. 13, with a refractory lining 63 welded to one section 20a as at 60 and formed with an angle ring 65 having a packing 67 engaging the adjacent section 20. In a modification, Fig. 5 (not shown), the furnace sections are each positively moved by a drive incorporating a reversible motor actuated by limit switches contacted by lugs on the ends of the rollers 50 as the muffle expands. In a further modification, Figs. 6-12 (not shown), the furnace shell is divided into a first movable section to which the entrance vestibule is attached, and a second fixed portion to the exit end of which the muffle is attached. The movable section is positively driven by a reversible motor through chain and sprocket gearing rotating a screw disposed longitudinally below said movable section and bearing a bracket attached thereto. Controlling limit switches are mounted on the entrance vestibule.
Patent GB-871991-A (GB)
Title: Improvements in or relating to centrifugal pumps
Inventor: HETHERINGTON THOMAS
IPC: A62C25/00
Filed: 1956-09-24
Abstract: 871,991. Centrifugal pumps. HAYWARD TYLER & CO. Ltd. Dec. 24, 1957 [Sept. 24, 1956], No. 29120/56. Class 110 (1). In a priming arrangement for a centrifugal pump, a normally closed valve blocks communication between the pump and the primer, the valve being urged into the open position during priming by means responsive to the suction of the primer and being urged into the closed position, when the pump is primed, by means responsive to an increase of the pressure in the outlet of the pump. In the centrifugal pump shown, the pump impeller U is driven from a pulley P through step-up gearing, and a liquidring pump 13 is driven from the pulley P through a friction wheel F. When the pump is at rest, a valve 5a is closed by a spring 18 to prevent communication between chambers 10 and 15. Chamber 10 is connected to the priming pump 13 through a conduit 12, and chamber 15 is connected to the centrifugal pump inlet I through a conduit 14 and a reservoir 20. When the pump is running in unprimed condition, the suction of the priming pump 13, communicated from chamber 10 through a groove 11 to the underside of a diaphragm 7, causes the diaphragm to open the valve 5a to permit priming. On completion of priming, the pressure in a space T (which is about 70% of the discharge pressure of the centrifugal pump), applied to the underside of a diaphragm 2a, causes the latter to close the valve 5a. The reservoir 20 prevents water from entering the priming pump 13 to dilute the anti-freeze solution in the liquid ring during the interval between completion of priming and closure of valve 5a. A piston 8 subjected to the pressure in space T pivots the priming pump 13 against the action of springs S to disengage the frictional drive on completion of priming. In a modification, the suction conduit 14 of the priming pump is connected to the space T instead of the inlet I, the reservoir 20 being omitted, and the space beneath the diaphragm 2a is connected through a pipe to the discharge O. The Provisional Specification describes an alternative embodiment in which the diaphragm 2a may be replaced by a piston, and either a reservoir or a non-return valve may be provided at the inlet to the priming pump.
Patent GB-617397-A (GB)
Title: Improvements in or relating to circuits for phase modulation of electric oscillations
IPC: H03C3/18
Filed: 1946-09-30
Abstract: 617,397. Phase modulation. PHILIPS LAMPS, Ltd. Sept. 30, 1946, No. 29126. Convention date, May 29, 1943. [Class 40 (v)] Phase modulation is produced by feeding oscillations (at 11, 12) to a network of circuits, each comprising an -inductance 8, 9 or 10 varied by the current in coupled modulating coils 5, 6, 7, and negative feedback of the modulating current is used of a value proportional to the modulating current and therefore variation of inductance and phase produced by the modulation. The voltage may be derived by one or more coils 15 coupled in series with the inductances 8, 9, 10 and applied to a rectifier 16 from across the load resistance 17 of which a voltage is fed in anti-phase to the control grid of the modulator valve 4. The network sections comprise condensers 13, the inductances 8, 9, 10 and resistances 14 and the former are tuned to the frequency of the applied oscillations. Alternatively, the voltage may be obtained direct from the condensers or inductances by way of blocking condensers 18, 19, Fig. 2 (not shown), chokes 20, 21 at each side of the resistance 17 allowing feedback only of the modulation.
Patent GB-1141857-A (GB)
Title: Improvements in or relating to secondary emission conductivity structures
IPC: H01J29/44
Filed: 1967-06-23
Abstract: 1,141,857. Image tubes. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 23 June, 1967 [24 June, 1966], No. 29129/67. Heading H1D. A secondary emission conductivity (SEC) structure serving, for example, as a target in an image-orthicon or as a dynode in an image converter comprises a plurality of layers of porous secondary emissive materials which have, proceeding from the face of the structure receiving the primary electrons, decreasing maximum secondary emission ratios matched to the decreasing residual energies of the transmitted secondary electrons. A two-layer structure may comprise on an alumina-aluminium support a first layer of potassium chloride, potassium bromide, sodium bromide or barium fluoride (high maximum secondary emission ratio and high corresponding accelerating voltage) and a second layer of sodium chloride, lithium fluoride or magnesium oxide (relatively low maximum secondary emission ratio and relatively low corresponding accelerating voltage). A further layer of e.g. silicon monoxide, silicon dioxide or calcium fluoride, may be provided to prevent or retard the emission of secondary electrons by an incident scanning beam when the structure is used in an image orthicon. Suitable dimensions and densities are given for the various layers.
Patent GB-229380-A (GB)
Title: Improvements in or relating to internal-combustion engines
IPC: F02F1/24
Filed: 1923-11-19
Abstract: 229,380. Williamson, D. D. Nov. 19, 1923. Valves; valve gear. -An inlet or exhaust port 14 is controlled by a piston 37 intermittently reciprocated in such a way as to be moved to its outer position during suction, and to be locked in its inner position during the combustion. period. The piston is actuated by rods 18 slid. ing on guides 21 and connected to eccentrics 20, Fig. 2, which are oscillated by links 31 and cams 29. The cams are oscillated by a link 26, eccentric 25, and rack-and-pinion gear 23, the arrangement being such that, during the combustion period, the eccentrics 20 are on a dead centre and hold the piston 37 against movement. Reference has been directed by the Comptroller to Specifications 23179/12, 173,294, and 196,393.
Patent GB-1096184-A (GB)
Title: Improvements in or relating to crates and like open-topped portable containers
Inventor: TAPPY RONALD ALAN
IPC: B65D1/24
Filed: 1965-07-09
Abstract: 1,096,184. Stacking crates. MARLEY TILE CO. Ltd. March 22, 1966 [July 9, 1965], No.29231/65. Heading B8P. Crates each including a base 1 and an upper frame 6 supported above the base, have on the underside of the base a set of ridges or grooves, as shown, ridges 16, 17, and on the upper surface of the frame 6 a set of grooves or ridges respectively, as shown, notches 18, which interlock so that one crate can be mounted on another in any one of a plurality of stable positions, either wholly upon or partially overlapping each other. The synthetic resin bottle crate shown has an upper frame; 6 supported by pillars 5, 12 from the base 1, and has internal partitions (13) (Figs. 1 and 4, not shown). When one crate is placed wholly on another, the circumferential ridge 17 spigots within the upper frame 6. When otherwise superposed, ridges 16, 17 enter notches 18. Locking projections 19 may assist in limiting play by coaction with cut-aways 20. The pillars 5 are constructed as in Specification 1,096,183.
Patent GB-969585-A (GB)
Title: Improvements in the manufacture of mirrors
Inventor: BENZIES GEORGE YOUNG
IPC: B29D11/00
Filed: 1962-07-30
Abstract: 969,585. Optical reflectors. VICKERSARMSTRONG (AIRCRAFT) Ltd. June 21, 1963 [July 30, 1962], No. 29233/62. Heading G2J. A flat reflecting surface is formed by supporting a sheet 13 of metallised film or foil material with its metallised side facing upwards across an annular trough 10 so that it lies in contact with flanges 101, 102, of the trough, sewing the edge of sheet 13 by a strip 14 of adhesive tape and then applying suction at 12 to the trough 10 so that parts 131 of the sheet 13 are flexed downwardly and the central part of the sheet is subjected to uniform tension. The mirror frame which may have a cross-sectional shape which is tubular 16, or rectangular 18, is secured to the sheet 13 by a strip 17 of double-sided adhesive tape. When adhesion is complete, the suction at 12 is released, tape 14 removed, and the edge of sheet 13 further secured to the frame by a metal, plastic or other edging strip. A support 15 having a layer of sponge rubber 151 thereon assists in securing the frame.
Patent GB-411739-A (GB)
Title: Improvements in and relating to seed sowing machines
IPC: A01C7/04
Filed: 1933-10-23
Abstract: 411,739. Distributers for seeds. FENNELLY, W. J., Sluggies Cross, Kilminchy, Maryborough, Leix, Irish Free State. Oct. 23, 1933, No. 29279. Convention date, Dec. 22, 1932. [Class 6 (i).] A machine for sowing root seeds &c. comprises a frame mounted on wheels or rollers and carrying a coulter and a seed box having an outlet above or at the rear of the coulter, an apertured slide forming the inner bottom of the seed box with the seeds resting freely upon it, and means driven by the wheels or rollers to reciprocate the slide to remove from the box a predetermined number of seeds and deposit them at definite intervals in the furrow formed by the coulter, the slide being interchangeable with others of different thicknesses and provision being made for adjustment of the bottom of the seed box corresponding with the different slides to prevent leakage of seeds. The frame 1 is supported on a concave front roller 2 and a plain back roller 3 and carries a winged coulter 4 and a seed box 5. A pivoted U-shaped draw-bar 6 is adjustably supported by a link 7 the front end of which carries the draw-hook 9 and is adjustable laterally. The handles 10 are offset laterally so that the attendant may walk in a furrow at the side. A levelling bar 11 is carried by bars 12 adjustably mounted on a cross-bar 13 hinged on the draw-bar 6. The bars 12 are held vertical by springs 14 on a support 15. A scraper 16 is resiliently pressed against the rear roller 3 by compression springs 16<a> bearing on opposite sides of an arm 16b. The roller is also provided with side scrapers 17. An apertured slide 20 is mounted above the bottom 22 of a tubular downward extension 5<a> of the seed box 5. It is detachably connected to a plate 23 pivotally connected to a rod 25 reciprocated by an eccentric on a counter-shaft driven from the roller 2 by chain gearing and a clutch. Interchangeable slides 20 are provided corresponding in thickness to the seeds to be sown, the bottom 22 of the box being adjustable vertically by means of a screw 36. An incline 34 leads to the aperture 21 in the slide, and the width of the aperture increases downwardly. A part 20<a> of the slide may be adjustable to regulate the size of the aperture for delivering one, two, or more seeds at a time, the seeds being delivered outside the box extension 5<a> and behind the bottom 22.
Patent GB-1100980-A (GB)
Title: Receiver aerial system
IPC: H01Q7/00
Filed: 1966-06-29
Abstract: 1,100,980. Aerials; amplifiers. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 29 June, 1966 [2 July, 1965]. No. 29307/66. Headings H4A and H3T. A loop aerial assembly, Figs. 1, 2, comprises similar co-axial turns 11 to 14 having just inside their peripheries ferrite rods 31 to 39 symmetrically arranged and, in parallel with their axis. The turns may be cross-connected, and be capacitance padded, by means of suitable plugs 2 to provide six frequency ranges, tuning to a particular frequency within a range being effected by a control means 50 for two adjustable capacitors (110, 140 in Fig. 5). The output from the turns is taken to an associated transistorized pre-amplifier 5. A generally cylindrical electrostatic screen 4, with a split 40 at the top, surrounds the turns and the preamplifier. The above parts are mounted on an insulated support ring 81 and are contained within an enclosure 9 formed by two fibre glass hemispheres 91, 92 which are fixed by central screws 95, 96 and have their edges bearing on gaskets 93, 94. The ring 81 is fastened to a base 82 which is rotatably mounted on a fixed base 83, through which passes an aerial output cable 6, protected by a tube 84. The pre-amplifier, Fig. 5, comprises three amplifying stages in series with silicon transistors 53, 53a, 53b. The first stage uses a commonemitter circuit and a quartz crystal 51, cut to the particular frequency being received, is in series with the emitter of the transistor 53 and with a link 52 which provides a choice of six different values of resistance to earth, corresponding to alternative bandwidths. The current in the transistor 53 is determined by a transistor 54, using a common-base circuit, the dynamic output impedance of which, in parallel with the crystal 51, is so high as to cause little damping. The emitter of the transistor 54 is fed from the input to the pre-amplifier through a variable capacitor 56 and its output, which is connected to the emitter of the transistor 53, compensates for the parallel capacitance 51a of the crystal 51.