baber/WOPTO huggingface dataset:
Patent GB-971747-A (GB)
Title: Improvements in and relating to the manufacture of oxides
Inventor: RICHMOND JAMES THOMSON
IPC: C01F7/302
Filed: 1960-02-23
Abstract: Oxides of titanium, zirconium, aluminium and silicon are prepared by reacting the chloride of the element with an oxidizing gas in the vapour phase, the reaction being carried out within a bed of particles of an oxide of one or more of said elements, maintained in a fluidized condition at 750 DEG  to 1500 DEG  C., a part of the oxide produced remaining in the bed and the size distribution of the oxide particles forming the bed is controlled by withdrawing oxide particles from the oxidation zone, reacting the withdrawn particles with a chlorinating and reducing agent to form oxide particles of a <PICT:0971747/C1/1> reduced size and to form the vapour of said chloride, and removing at least some of the particles of reduced size from the chlorination zone by allowing them to become entrained in the gas stream leaving the chlorination zone and introducing the oxide particles of reduced size and the chloride vapour into the oxidation zone.  Advantageously the oxidation and chlorination zones are different zones of the same reactor as shown in Fig. 1. Thus the chlorinating and reducing agent is introduced into the reactor at the base thereof through tangential inlets 17 and 18, the chloride and oxidizing gas being introduced into the same reactor at a higher level through lines 15 and 16 respectively. The horizontal cross-sectional area of the reactor increases upwardly at and/or above the said higher level, and the rates of feed of substances to the reactor and the dimensions of the reactor are so selected that the oxide particles are maintained in the form of a fluidized bed in which the chloride undergoes oxidation in a high zone of the reactor, oxide particles above a certain size fall towards the base of the reactor into a lower zone where they undergo partial chlorination, and the resulting oxide particles of reduced size are carried up into the oxidation zone.  Product TiO2 is entrained in the gas stream leaving the chlorination zone.  The oxidizing gas may be a gaseous oxygen compound, e.g. an oxide of nitrogen; advantageously it is oxygen and it is introduced into the reactor, either in the pure form or as air, through inlets directed tangentially to impact a swirling motion to the oxide particles forming the oxidation bed.  The chlorinating and reducing agent may be a single gaseous substance, e.g. COCl2, or separate chlorinating agents and reducing agents may be used; preferably the former is Cl2 and the latter CO. Specification 866,363 is referred to.
Patent GB-1037811-A (GB)
Title: Improvements in or relating to linings for use with centrifugal blasting wheels
Inventor: MACMILLAN WILLIAM ROBERTSON
IPC: B24C5/06
Filed: 1963-03-18
Abstract: 1,037,811. Blasting. TILGHMAN'S Ltd. June 17, 1964 [March 18, 1963], No. 6396/63 Heading B3D. A lining for the guard housing of a centrifugal blasting wheel comprises a plurality of lining pieces, made of blast wear-resisting material and provided with mating members adjacent their edges so that the pieces fit together to provide an assembled lining whose joints are proof against leakage of abrasive shot and whose inner surface has contours which are substantially non-angular. A housing 12 for a centrifugal blasting wheel has a lining of wear-resistant material. Each vertical side of the lining is made up of segmental piece 13, 14, 15 held by bolts 16 to the inside of the housing. The sides are bridged by pieces 18, 19, 21, 22, 23. The pieces 18, 19 abut lateral projections 20 formed on the sides of the lining. The pieces 21, 22, 23 are of channel cross-section and have lateral projections allowing them to rest on the top edges of the side lining pieces 14. The upper ends of the pieces 18, 19 are flared at 25; the piece 22 is flared at both ends. Adjusting screws 26 in the housing 12 bear on the pieces 18, 19. The housing has a lid 27 provided with a rubber plug 28 which bears on the piece 22 when screws 29 are tightened.
Patent GB-342925-A (GB)
Title: Beacon lights for aeroplane routes
IPC: B64F1/20
Filed: 1930-02-26
Abstract: 342,925. Beacon lights for aerial navigation. MALLINCKRODT, F. VON, 9, Martin Lutherstrasse, Schoneberg, Berlin. Feb. 26, 1930, No. 6397. [Classes 75 (iii) and 75 (iv).] A route-indicating beacon light for aircraft comprises a source of light and a reflector or a lens contained in a rotatable casing so as to project a beam moving in a plane approximately at rightangles to the ground. The source of light, or an additional one, may be adapted to project a horizontal beam simultaneously or in succession with the vertical beam. In the form shown in Fig. 1, a source of light 1 is fixed within a drum 2 which carries one or more lenses 3, 4 and is rotated about a horizontal axle 6 by means of an electric motor 10, a reflector 11 being provided to produce the horizontal beam. In the form shown in Fig. 2, a reflector 13 carrying a source of light is rotated about a horizontal spindle 14 by means of a motor 18 which also rotates a second reflector 19 and source of light about a vertical axis. The beacon light is mounted on a raised platform or tower, and the source of light preferably comprises a multifilament electric lamp bulb. The vertical and horizontal beams of light may be coloured to provide signal or other indications. The vertical beam may move through an arc of slightly less than 180‹, and, when a horizontal beam is not required, the light may be cut off during the period that the beam is directed downwardly. Several such beacons may be arranged side by side and driven separately or by the same motor at different speeds and in different directions for indicating branches or deviations of the route or for other purposes, the beams meeting in any desired direction such as the vertical.
Patent GB-361222-A (GB)
Title: Improvements in devices for training aviator pilots
IPC: G09B9/14
Filed: 1931-03-02
Abstract: 361,222. Training aviators. BARTLETT, J. N., 301, Balfour Avenue,'Winnipeg, Canada. March. 2, 1931, No. 6428. [Class 4.] A device for training aviators comprises an aeroplane fuselage universally pivoted on a pedestal and fitted with a propeller driven by an electromotor which directs a blast of air on to the rudder and elevator and, by means of conduits in the wings, on to the ailerons also to enable the pupil to control the machine from a standard set of controls. The machine is mounted by the universal joint shown in Fig. 5 upon the top of a rod 13 pivotally mounted in a pedestal 11 which has insulated conductor rings 31, 32, 33 cooperating with brushes 35 carried by a bracket 34 on the rod 13 for conveying current to the motor. A ring 25 on the fuselage co-operates with buffer 26 on the pedestal to limit the tilting movements of the fuselage. The fronts of the wings adjacent to the fuselage have flared openings 53, Fig. 4, to direct the propeller blast through conduits 52 to impinge above and below the ailerons. These are constructed in two parts 55, 56, Fig. 8, the part 56 being secured to a control rod 58 about which the part 55 is freely pivoted. Spring bars 59, 60 connect the two parts so that as the part 56 is deflected the part 55 is pressed against the upper or lower edge of the conduit openings. To facilitate entry to the cockpit a stairway 37 hinged to the floor has a bar 43 provided with hooks 44 for engaging eyes 45 beneath the fuselage to hold it in a fixed position. The stairway has hinged legs 39 connected by a bar which engages clips on the floor. For balancing the fuselage about its support two tanks are provided, fore and aft, connected by piping in which is inserted a gear pump and a stop cock.
Patent GB-1427664-A (GB)
Title: Shaped structures of acrylonitrile polymers containing antistatic additives method of producing thick slab-like elements for use in carpentry and like trades
IPC: C08K5/205
Filed: 1974-02-13
Abstract: 1427664 Antistatic acrylonitrile polymer compositions; polyether diurethanes BAYER AG 13 Feb 1974 [13 Feb 1973] 6513/74 Headings C3P and C3R Shaped structures are made from compositions comprising an acrylonitrile polymer and as antistatic agent a polyether diurethane of formula where R is an optionally halogen or alkyl substituted C 1 -C 18  alkyl, cycloalkyl, aryl, aralkyl or alkaryl radical; x is 5 to 50; R<SP>1</SP> is an alkylene, arylene, aralkylene, alkarylene or cycloalkylene radical and R<SP>11</SP> is H or alkyl. The acrylonitrile polymer may be a homopolymer or copolymer with acrylic or methacrylic esters or amides, vinyl or allyl esters, sulphonic acids or phosphonic acids, vinyl or vinylidene halides or vinyl heterocyclic compounds. The urethanes may be prepared by reacting alcohols and phenols with ethylene oxide in the melt in the presence of a basic catalyst, and reacting the product with a diisocyanate in the melt or in solution, e.g. in dimethyl formamide. Examples describe the spinning of fibres from dimethyl formamide solutions of polyacrylonitrile and acrylonitrile/ methyl methacrylate/m-methacryloylamino di- (benzenesulphon)imide copolymers containing antistatic agents prepared by reacting (1 and 2) stearyl alcohol with 30 molar proportions of ethylene oxide, and the resulting ethoxylated stearyl alcohol with 4,4<SP>1</SP>-diphenylmethane diisocyanate, and (3) stearyl alcohol with 15 molar proportions of ethylene oxide, and reacting the product with 3,3,5-trimethyl-5- isocyanatomethyl cyclohexyl isocyanate.
Patent GB-677659-A (GB)
Title: Improvements in or relating to machines for wrapping rod-like articles in tubular wrappers
IPC: B65B19/34
Filed: 1950-03-15
Abstract: 677,659. Hoppers. GAMBLE. H. Feb. 6, 1951. [Vlarch 15, 1950 ; April 21. 1950 ; Oct. 10, 1950] Nos. 6542/50, 9829/50 and 25530/50. Class 78 (i). [Also in Groups VIII and XVII] Drinking straws stacked in a hopper 15 are fed therefrom one at a time by continuously rotated fluted drum means ]4. One side 37 of the hopper is oscillated about its pivot 38 by link means 39 actuated by a crank pin 40 on a continuously rotating disc. Rotary brush means 16 co-operates with the drum means 14 to brush any surplus straws back into the hopper and ensure that only one straw occupies each flute. The straws drop from the flutes of the drum means 14 to a second, intermittently rotated, fluted drum ]3, this transfer being aided by pins 43 on a rocking shaft 44. The drum means 14 comprises, Fig. 7, a central narrow fluted drum 14B secured on a shaft 81 and two outer narrow fluted drums 14A, 14C loosely mounted on the shaft and adjustable thereabout relative to the centre drum 14B to vary the effective size of the flutes according to the width of the straw to be carried, being secured to the central drum 14B by bolts 106 passing through quadrant slots 107. Alternatively, the outer drums may be fixed and the centre one adjustable.
Patent GB-653846-A (GB)
Title: Radar transponder beacon systems
IPC: G01S13/78
Filed: 1948-03-03
Abstract: 653,846. Transponder apparatus; pulse generating circuits. LORD, A. V., and PYE, Ltd. March 3, 1948, No. 6650. [Classes 40 (v} and 40 (vi)] A transponder beacon system comprises a beacon receiver, the sensitivity of which is periodically reduced by a train of variable-width pulses, whose width may be a function of the ratio of active to inactive time of the beacon transmitter.. The system is used to prevent the proportion of transmitting time exceeding the allowable maximum when the beacon is receiving a large number of signals from interrogators. In the system described, a waveform as shown in Fig. 2 is obtained and passed through a clipper circuit, the operating level of which is dependent on the transmitter output. The portion of the waveform above the clipping level is used to provide the variable width pulse used to reduce the sensitivity of the receiver. The positive and negative pulses superimposed on the saw-tooth waveform ensure that the receiver is never either operative, or inoperative, for the whole cycle. Fig. 3 shows a suitable circuit arrangement. The output from the cathode of a blocking oscillator valve V1 is passed through pulse shaper circuits comprising valves V2 and V3, to provide a series of three microsecond, negative pulses in the output circuit of valve V4. The output from valve V3 is also applied through a differentiating network R14, C9, R15, C10, R16 to the cathode of valve V5 to provide delayed, positive, onemicrosecond pulses in the output circuit of valve V5. The output from the anode of the valve V1 is also applied to an integrating circuit C12, R20, to provide a saw-tooth waveform in the output circuit of valve V6. The valves V 4, V5, and V6 form a mixing circuit to provide the combined waveform as shown in Fig. 2. This waveform is applied to the grid of valve V8, which has a cathode impedance comprising valve V7. The impedance of valve V7 is controlled by a direct voltage applied to its grid, and obtained from the cathode load of the magnetron used in the beacon transmitter. Due to the action of grid current, valve V8 constitutes a clipper circuit, the generating level of which depends on the mean current of the transmitter magnetron and positive pulses of corresponding width appear at the anode of valve V8. Transformer T2 is provided to improve the shape of the output pulses from valve V8. These pulses are applied through a pulse-shaping circuit comprising valves V9, V 11 and V13 to valve V14, from the cathode load of which negative blanking pulses of controlled width are obtained, which may be used to reduce the receiver sensitivity by application to the suppressor grids in the intermediate frequency position of the receiver.
Patent GB-745219-A (GB)
Title: A method of treating polyvinyl alcohol fibres and other shaped articles
IPC: D06M13/12
Filed: 1953-03-11
Abstract: Previously heat-treated polyvinyl alcohol fibres which shrink in water of 80 DEG  C. not more than 5 per cent in length are treated with aldehydes and ketones having at least four carbon atoms, or their acetals and ketals with lower alcohols having at most three carbon atoms, for a time sufficient to acetalize 1 to 50 per cent of the hydroxyl groups of the polyvinyl alcohol.  The compound is preferably used as an aqueous acidified emulsion containing 0.5-15 per cent of the compound and also surface-active agents. Specified compounds are n-butyr-, isobutyr-, valer-, isovaler-, hepta-, and undecyl-aldehydes, capronic, caprylic, lauric, palmitic, stearic, oleic, cinnamic and terephthalic acid aldehydes, alpha - ethyl - beta - propylacrolein, benzaldehyde, tolylaldehydes, phenylacetaldehyde, naphthaldehydes, anisaldehyde, furfural, tetrahydrofurfural, chlorobenzaldehydes, methoxybenzaldehydes, nitrobenzaldehydes, salicylaldehyde, oxynaphthaldehydes, thiophenaldehyde, cyanobenzaldehyde, phenoxypropionic aldehyde, nitro- or chloro-phenoxyacetaldehydes, perhydrobenzaldehyde, acetophenone, benzophenone, tetrahydroquinone, cyclohexanone, nitro and chlorocyclohexanones, and their acetals and ketals with lower alcohols.  The treatment may be preceded or followed by one with formaldehyde or a compound yielding formaldehyde or with a dialdehyde or a ketoaldehyde, or one of these materials may also be present in the main treatment bath.
Patent GB-292216-A (GB)
Title: Improvements in or relating to funnels or thread guides for use in the manufacture of threads of artificial silk and the like
IPC: D01D7/02
Filed: 1927-03-11
Abstract: 292,216. Wagner, E. March 11, 1927. Thread guides.-The lower end of a tubular funnel or guide 2 for use in the manufacture of artificial silk threads is flared at 4 so as to provide a surface 5 over which the thread passes, contact therebetween serving to prevent rotation of the thread relatively to the surface. In the form shown, the guide is constricted at 3 and the diameter of the mouth of the flare is approximately twice the internal diameter of the guide, while the flare 4 is inclined at an angle of 30‹ to the axis of the stem.
Patent GB-311034-A (GB)
Title: Improvements in the manufacture of wheaten flour
IPC: A21D6/00
Filed: 1928-03-05
Abstract: 311,034. Dunham, R. W. March 5, 1928. Treatment by heatinq and cooling; treating with air; treating with radiations.-Flour is artificially matured by subjecting it to alternate periods of light and comparative heat and darkness and comparative cold. The upper temperature is preferably just under 100‹ F. and should not exceed 140‹ F. and the cool temperature is about 50‹ to 60‹ F. The heating is preferably accomplished by passing the flour under electric lamps the filaments of which are heated to a red glow.
Patent GB-993675-A (GB)
Title: Improvements in or relating to the manufacture of pellets of a hydrogel of carboxymethyl cellulose
IPC: C08B11/20
Filed: 1963-02-20
Abstract: Pellets of a hydrogel containing not more than 2% by weight of carboxymethyl cellulose are made by adding drops of an aqueous solution of one or more water-soluble salts of carboxymethyl cellulose, in a concentration not exceeding 2% by weight (expressed as carboxymethyl cellulose) to an aqueous solution of an aluminium salt containing 0.06 to 0.40 gram, preferably 0.14 to 0.16 gram, of aluminium per litre, the drops of the aqueous C.M.C. solution being thereby converted into pellets of a hydrogel. The water-soluble salt of carboxymethyl cellulose may be the sodium salt and the degree of substitution of the C.M.C. may be 0.4 to 1.0. The aluminium salt may be a halide, nitrate, or sulphate, or a double salt such as potassium alum, or ammonium aluminium chloride.  The pellets may be mixed with a hardenable liquid mass of a material such as concrete, mortar, or a gypsum and thereafter allowing the mixture to harden in order to obtain a solid cellular concrete &c.  Gelatine, starch, and alginates may be mixed with the C.M.C.ALSO:Pellets of a hydrogel containing not more than 2% by weight of carboxymethyl cellulose are made by adding drops of an aqueous solution of one or more water-soluble salts of carboxymethyl cellulose, in a concentration not exceeding 2% by weight (expressed as carboxymethyl cellulose) to an aqueous solution of an aluminium salt containing 0.06 to 0.40 gram, preferably 0.14 to 0.16 gram, of aluminium per litre, the drops of the aqueous C.M.C. solution being thereby converted into pellets of a hydrogel.  The resulting hydrogel pellets may be spherical.  The water-soluble salt of carboxymethyl cellulose may be the sodium salt and the degree of substitution of the C.M.C. may be 0.4 to 1.0.  The aluminium salt may be a halide, nitrate, or sulphate of aluminium, or a double salt of aluminium such as potassium alum, or ammonium aluminium chloride. The pellets may be mixed with a hardenable liquid mass of a material such as rubber latex and thereafter allowing the mixture to harden in order to obtain a cellular solid mass of material.
Patent GB-872272-A (GB)
Title: Improvements in or relating to master cylinder units for liquid pressure braking systems
Inventor: CHOUINGS LESLIE CYRIL
IPC: B60T11/22
Filed: 1959-02-27
Abstract: 872,272. Master-cylinders. AUTOMOTIVE PRODUCTS CO. Ltd. Jan. 5, 1960 [Feb. 27, 1959], No. 6958/59. Class 103 (1). A master cylinder for liquid pressure braking systems is provided with a reservoir of tubular construction comprising a cup-like metallic base portion 21 welded or brazed to the master cylinder 10 which passes through diametrically opposite holes in the base portion and a transparent portion 30 of thermoplastic or thermosetting plastic material extending to the top of the reservoir is mounted in the open end of the base portion 21 to make a liquidtight seal therewith and to enable the level of the pressure liquid inside the reservoir to be ascertained without removing the cap 38. Fig. 1 shows that the two portions of the reservoir are joined by means of an inwardly opening peripheral channel 33 formed on the base portion 21 and a peripherally extending lip 31 which enters the channel and is formed on the transparent portion 30. An anti-surge baffle plate 41 is provided in the base portion 21. Fig. 3 shows an alternative embodiment for a vertically mounted master cylinder 10; the reservoir being positioned parallel to the master cylinder. The construction differs from that described above in that the master cylinder passes through the end plates of the metallic base portion instead of through its cylindrical wall and the transparent portion 30 of the reservoir is screwed into an extension 50 of one end plate of the base portion.
Patent GB-869455-A (GB)
Title: Improvements in pipe connections for use between coupled vehicles
Inventor: HOLLIS RICHARD JOHN
IPC: B61G5/08
Filed: 1959-02-27
Abstract: 869,455. Pipe connectors. DOWTY HYDRAULIC UNITS Ltd. March 23, 1960 [Feb. 27, 1959], No. 6959/59. Class 99(1). A pipe connector comprises a pipe 25 arranged for mounting on a vehicle coupler with an end portion 29 thereof projecting from the mounting in a direction parallel to the longitudinal axis of the coupler, and an axially yieldable, resilient tubular member 31 having the inner end thereof fixed coaxial with the portion 29 and the outer end thereof guided for axial movement by and extending beyond the end portion of the pipe so as to yieldably engage and seal against a like pipe connector on another coupler. As shown, the member 31 is provided with corrugations 34 and a flared sealing lip 35, the inner end 32 of the member being received in an annular recess formed between the pipe 25 and a collar 29. In a modification, the member 41, Fig. 4, is supported within a socket 42 and has an inturned lip 45. Specification 851,293 is referred to.
Patent GB-1376851-A (GB)
Title: Method of rendering self-locking nuts
IPC: F16B39/284
Filed: 1973-02-13
Abstract: 1376851 Securing nuts SIMMONDS SA 13 Feb 1973 [23 March 1972] 6993/73 Heading B3U [Also in Division F2] A method of locking a nut 1 having a frustoconical or bulged upper face 2 on to a threaded member comprises deforming the nut by applying to its face 2 in a direction substantially parallel to the axis of the nut a tool having three punches 4 symmetrically disposed about the nut axis and each of which has an end surface for striking the nut, each end surface being a portion of a surface of revolution containing the end surfaces of the other two punches, the surface of revolution including at least one frusto-conical portion facing downwardly and inwardly towards the upper face of the nut, so as to form three equidistant imprints 3 each having in plan the general shape of a crescent formed between two arcs 5, 6, of two substantially concentric circles, the inner arc 5 being subtended at its centre by an angle smaller than that of the outer arc 6 at its centre. The punch 4 preferably includes two frusto-conical portions on the surface of revolution, which form imprint portions 3a, 3b, the portions 3a have an included angle of 140 degrees, while the included angle of the frusto-conical nut face is 120 degrees, and the nut is deformed radially and axially by a decreasing amount from the tool engaging surface.
Patent GB-1219887-A (GB)
Title: Fluid flow measurement systems
Inventor: JACOBS ROBERT B
IPC: G01F1/78
Filed: 1969-02-10
Abstract: 1,219,887. Fluid flowmeters. R. B. JACOBS. Feb. 10, 1969, No.7083/69. Heading G1N. A system for measuring density, mass flow-rate and volume flow rate of a fluid comprises a pressure-sensitive piezoelectric transducer, 10, which is vibrated, in a direction transverse of the longitudinal axis of a fluid duct, 14 by a vibrator 18, the amplitude of the resultant in-phase component of the transducer output signal being proportional to fluid density whilst that of a component in phasequadrature is proportional to mass flow-rate. A divider circuit (55) Fig. 1 (not shown), produces a signal proportional to the dividend of these components which represents volumetric flow-rate. A theoretical analysis of the method is given. The transducer is pre-loaded to compensate for the effects of static pressure and a filter (30) removes parasitic components from the transducer output signal. It is stated that the transducer may be replaced by one of an inductive, capacitive, or resistive type or by a strain gauge.