baber/WOPTO huggingface dataset:
Patent GB-1036507-A (GB)
Title: Discharge electrodes
Inventor: JONES KENNETH
IPC: B03C3/41
Filed: 1965-04-24
Abstract: 1, 036, 507. Electrostatic precipitators. PIONEX Ltd. April 24,1965, No. 17380/65. Heading B2J. A discharge electrode of an electrostatic precipitator is formed of a metal strip having discharge points 11 provided on at least one longitudinal edge, each point being defined by intersecting rectilinear sub-edges 12 which merge by way of a radiused portion 13 into either a sub-edge of an adjacent point or an intermediate portion of the edge. The strip may be folded about its longitudinal axis and two or more such electrodes secured together with the points facing outwardly. In Fig. 2 (not shown), the points are set further apart and joined by a shallow curve 14. In Figs. 3 and 4 (not shown), the points are formed by an outer pair of sub-edges 12 set at a smaller angle and an inner pair of sub-edges 15 set at a wider angle, the sub-edges merging, by way of radiused portions.
Patent GB-360823-A (GB)
Title: Improvements in or relating to luminescent gas discharge tubes
IPC: H01J61/16
Filed: 1930-06-05
Abstract: 360,823. Discharge lamps. CLAUDE NEON LIGHTS, Inc., 41, East 42nd Street, New York, U.S.A.-(Assignees of Beek, L. L. ; 27, Stonleigh Park, Westfield, New Jersey, U.S.A.) June 5, 1930, No. 17431. Convention date, June 26, 1929. [Class 39 (i).] Discharge lamps are filled with neon containing about 1 per cent of krypton. Blue rays from the krypton blend with the red rays from the neon to produce a light not distorting natural colours. The neon may contain slight impurities not masking its colour. The lamps may have hot or potassium pool cathodes and may operate with high currents at normal voltages on commercial power lines. Reference has been directed by the Comptroller to Specifications 8712/13 and 227,832, [both in Class 39 (i), Electric lamps, Arc &c.].
Patent GB-1390500-A (GB)
Title: Washing machines
IPC: D06F37/22
Filed: 1971-04-16
Abstract: 1390500 Washing machines HOOVER Ltd 14 April 1972 [16 April 1971] 17442/72 Divided out of 1390498 Heading D1A A horizontal drum 10 is supported from below in the frame or casing 35 of a washing machine by at least two helical spring units, one 76 of which has no anti-buckling guide means along part at least of its length and the or others 28 surrounding a strut with part-spherical universal joints at both ends, the lower one or ones 31 as shown permitting axial movement of the strut 37 and comprising two parts 57 which provide friction damping in dependence upon the force in the spring 28 due to the reaction between the parts 57 and the concave surface 51 of the bracket 33. Centralising springs 80 and 85 are also provided. The single spring 76 may have a guide along part of its length in the form of a tube or a longitudinally ribbed member secured to the bracket 78 or 80 at one end.
Patent GB-1012806-A (GB)
Title: Improvements in magnetic recording heads
IPC: G11B5/147
Filed: 1964-04-28
Abstract: 1,012,806. Magnetic recording &c. heads. WOLFGANG BOGEN G.m.b.H. April 28, 1964 [Aug. 23, 1963], No. 17493/64. Heading G5R. A magnetic head for multi-track recording/ playback comprises two magnet cores each having a recording zone lying at the apex of a V-shaped portion of the core, the two apices lying in the same plane and being directed towards each other, and coils being arranged on parallel limbs extending perpendicular to the plane of the tape. Each core may be formed of two halves 13 and 14, and a half of each core may be assembled in oblique slots in half of a mounting block 10 (Fig. 2, not shown) with a screen (not shown) between the two cores. In a modification, Fig. 4 (not shown), for three track working, a linear core is inserted between 'the two V-shaped cores with screens between the cores. The construction shown allows closer spacing of the two tracks, for example a spacing of 0À75 mm., and is also applicable to erase heads.
Patent GB-482360-A (GB)
Title: Improvements in stereoscopy in cinematography
IPC: G03B35/00
Filed: 1936-06-24
Abstract: 482,360. Stereoscopic kinematography. MOOS, N. H. June 24, 1936, No. 17505. Void. Convention date, July 23, 1935. [Class 97 (i)] Relates to stereoscopic kinematography and comprises (1) means for taking and projecting pairs of images on lenticular films, line-screen films, &c., (2) cameras having optical systems with two converging axes, and (3) projectors with optical systems, gates, &c., for two images, and means for feeding one image at each film shift ; complementary colour filters may be used for image separation. (1) Linescreen and lenticular films, as used for colour kinematography, may be exposed with two lenses or with a large-aperture lens having a mask 1, Fig. 1, providing exposure apertures 2, 3, and may be projected with a screen comprising two parts of complementary colours used as in colour projection. (2) Figs. 5 and 7 show a camera comprising vertically-spaced lenses 10, 11, having reflecting prisms 13, 13a before them and receiving beams from reflecting prisms 14, 14a having spaced centres on one horizontal line. Changeable prisms 16, in a housing 17 in front of the prisms 14, 14a may effect convergence of the taking axes as desired. A screen 25 extends between the lenses and the image areas of a double gate 21, and simultaneous exposure is effected by a rotary shutter 22; film shifts may be made at half the normal frequency and may feed two images at a time. A modification is described in which exposures are made through a singlepicture gate by a lens having a rotary, counterweighted, periscopic combination of prisms before it, gearing being provided between the shutter, periscope, and feed claw, to effect one exposure after each film shift, and with the periscope extending horizontally in one direction or the other ; the taking axes in the two positions may converge. (3) Fig. 10 shows a two-picture gate 41, 42 and a lens system for use in a standard projector. Two lenses are carried by one mounting 43 carrying also parallel-faced elements 45, 45a of which the element 45 is rotatable on a pivot 46 to effect superposition of the images on the screen. The rotation is effected by a lever 47 spring- pressed on to a threaded rod 50 manually rotatable. Each image is projected twice, once with the preceding image and once with the following image. The film images may be dyed in complementary colours, or colour screens may be provided in association with the lenses.
Patent GB-646557-A (GB)
Title: Improvements in or relating to fluidised solid systems
IPC: B01J8/24
Filed: 1948-06-30
Abstract: <PICT:0646557/III/1> Finely-divided solids are contacted with gases, e.g. in the cata-lytic synthesis of hydrocarbons from CO and H2, by maintaining the catalyst solids in the form of a turbulent fluidized bed, the tendency for the particles of particular sizes to take up definite positions in the bed being negatived by classifying the feed material into two or more fractions according to particle size, and feeding the largest particles to the upper part of the bed and the smallest particles to the lower part of the bed.  Intermediate size particles may be fed into the intermediate part of the bed.  The return pipe 20 of the gas-solids separator 18 recirculates fines to the bottom of the bed, and this effect is increased by a pipe 19 which brings the inlet of the separator nearer to the surface L30 of the bed and thus ensures that the separator is efficiently loaded with fines. The feed hopper 1 may feed directly through a pipe 3 to an intermediate part of the bed, or it may feed an elutriator 5 which divides the material into two or more fractions, the largest particles being fed to the top of the bed through the pipe 10 and the smallest particles through the pipe 8 to the fluidizing gas-line 15. The material drawn off from the bed may be classified in an elutriator 40, the larger particles being led by a pipe 44 to the upper inlet pipe 10, and some of the fines being delivered by a pipe 42 to the lower inlet-pipe 8.
Patent GB-1204963-A (GB)
Title: Improvements in or relating to fault testing arrangements
Inventor: RELF TERENCE JOHN
IPC: H04B3/46
Filed: 1968-04-11
Abstract: 1,204,963. Testing unattended repeaters. GENERAL ELECTRIC and ENGLISH ELECTRIC COMPANIES Ltd. 11 April, 1969 [11 April, 1968], No. 17525/68. Headings H4L and H4R Means are provided for testing the "go" and "return" paths in a communication system including unattended repeaters. As described, testing is performed on a particular channel in a multiplex P.C.M. system whenever that channel becomes idle. At station 1, when the test channel becomes idle a test tone from an oscillator 5 is supplied to the pulse coder 6 and transmitted to station 2, an alarm 10, controlling, for example, a lamp, being started on the transmission of the test signal. At station 2 the test signal is decoded at 7 and supplied via a gate 8 to the coder 13 and returned to station 1. Receipt of the test signal at station 1 inhibits a gate 11 to stop the alarm 10. Absence of the test signal at station 2 when the test channel is idle is detected at 7 to cause an oscillator 12 to supply a low-frequency signal which is coded at 13, transmitted back to station 1 and acts as a chopping frequency on gate 11 to cause the alarm lamp to flash. A fault in the return circuit from station 2 to station 1 will cause the lamp to remain on continuously.
Patent GB-476899-A (GB)
Title: Improvements in the manufacture and production of condensation products
IPC: C07D241/38
Filed: 1936-06-24
Abstract: Amines of the formula A--NH--B in which A is hydrogen, alkyl, cycloalkyl, aralkyl, or aryl and B is alkyl, cycloalkyl, aralkyl or aryl and in which A and B may be joined by a carbon bridge are reacted with compounds of the formula <FORM:0476899/IV/1> in which R is a mononuclear or polynuclear aromatic or hydroaromatic ring system, the initial materials being so selected that neither is capable of being vatted.  Elevated temperatures and increased pressures may be used, and also condensing agents such as anhydrous boric acid, zinc chloride, sodium acetate or sodium bisulphate, preferably in a diluent.  If Pz. - dihydroxy - 1.2 - pyrazinoanthracene is heated with aniline or substituted anilines in boiling nitrobenzene in presence of boric acid, Pz. - monohydroxy - monoarylamino - 1.2-pyrazinoanthracenes are obtained.  The products are intermediates for dyes and medicaments.  In examples: (1) Pz.-dihydroxy-1.2-pyrazinoanthracene is heated with m-toluidine in nitrobenzene in presence of boric acid to give a Pz.-mono-m-toluido-monohydroxy-1.2-pyrazinoanthracene; (2) 7-nitro-2.3-dihydroxyquinoxaline is heated with o-toluidine as in (1) to give a 7-nitro-Pz.-mono-o-toluido-monohydroxy-quinoxaline; the o-toluidine in (2) may be replaced by m-toluidine, p-toluidine, or o-chloraniline to give the corresponding 7-nitro-Pz.-m-toluido-, 7-nitro-Pz.-p-toluido-, or 7-nitro-Pz.-o-chloranilido-hydroxyquinoxalines; (3) 7-nitro-2.3-dihydroxyquinoxaline is reacted with benzidine to give mainly a product derived from one molecule of benzidine and two of the quinoxaline; (4) 2.3-dihydroxyquinoxaline is reacted with aniline in presence of zinc chloride to give a Pz. - monoanilido - monohydroxyquinoxaline; (5) 7-nitro-2.3-dihydroxyquinoxaline is reacted with aniline as in (4); (6) 2.3-dihydroxyquinoxaline is reacted with p-aminoacetanilide in presence of zinc chloride; (7) Pz.-dihydroxy-3<1>.4<1>-pyrazino-benzoylbenzoic acid is heated with p-toluidine and zinc chloride to give the p-toluidide of Pz.-p-toluido-monohydroxy - 3<1>.4<1> - pyrazinobenzoylbenzoic acid which is heated with sulphuric acid to give the free acid; 2.3-dihydroxyquinoxaline is reacted with (8) piperidine, to give a Pz.-monohydroxymonopiperidinoquinoxaline; (9) methylamine, to give a Pz.-monohydroxy-monomethylaminoquinoxaline; (10) benzylamine, to give a Pz.-monohydroxy-monobenzylamino-quinoxaline; (11) cyclohexylamine, to give a Pz.-monohydroxy-monocyclohexylaminoquinoxaline.  Pz. - Dihydroxy - 1.2 - pyrazinoanthracene is obtained by heating 1.2-diaminoanthracene with oxalic acid. 7-Nitro-2.3-dihydroxyquinoxaline is obtained by heating 4-nitro-1.2-phenylene diamine with oxalic acid.  Pz. - Dihydroxy-3<1>.4<1>-pyrazino-benzoylbenzoic acid is obtained by reacting 2-(3<1>.4<1>-diaminobenzoyl) benzoic acid with oxalic acid.
Patent GB-385325-A (GB)
Title: Improvements in luminous signal devices particularly adapted for air-traffic
IPC: B64F1/20
Filed: 1931-06-17
Abstract: 385,325. Semaphore and pointer luminous signals for signalling direction of wind ; signalling force of wind. NAAMLOOZE VENNOOTSCHAPPHILIPS GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. June 17, 1931, No. 17590. Convention date, Jan 13. [Class 118 (ii).] Apparatus for signalling to aircraftthe direction and pressure of the wind comprises a wind vane and wind-pressure apparatus in combination with optical apparatus for projecting on a screen, e.g. on a roof, signals indicative of the direction and pressure of the wind. The wind vane comprises a fixed part 1 with feet 6 and a movable part 2 having a tube 27 with rudder planes 3. The spring- controlled rod 7 moving in the tube 27 is provided with a metal disc 5 to receive the wind pressure and has an arm 25 engaging with a lever 26 for moving the numbered glass strip 22 over the rolls 23. A ring 18 is screwed into a stationary part 13 and carries a condenser lens 19 and a glass disc 20 provided on its lower side with a compass card marking. The housing 8 of the movable part 2 rotates on balls 12 and is provided with a templet or stencil plate 21 having an arrow wide enough to accommodate two full figures on the strip 22. The objective of the projection apparatus is provided in the aperture 9 of the housing 8 and a projection lamp , and a mirror are carried in the lamp housing 1 carried by the body 13. Air holes 15 are protected by a rim 16 against penetration of moisture, air circulation being furthered by a funnel 17. Other indications such as height of clouds, distance of sight, &c. can be projected as above, adjustments being made by hand or as in ship telegraph by adjustment at a distance from the air port office. A light filter can be added to the projection weather vane, which filter may be adjusted at a distance, so that the image projected by the weather vane can 'be coloured red or green at will to signal landing prohibition or landing permission to the pilot. In a modification the housing 8 of the movable part 2 is provided with an annular flange which is immersed in a mercury bath, provided in the stationary part 1.
Patent GB-612985-A (GB)
Title: Improvements in self-propelled electrically driven trucks
IPC: B60K1/00
Filed: 1946-06-13
Abstract: 612,985. Electrically - propelled vehicles; mounting batteries. BOASE, W. P. June 13, 1946, No. 17680. [Class 79 (iii)] [Also in Group XXX] In a self-propelled electricallydriven truck carrying a crane (see Group XXX), the crane jib 8 is pivotally mounted at 9 on a superstructure 5 which is detachably secured on the chassis 1 by clamps 6 and the winch drum 16 for the hoisting cable 17a is driven through a coupling 11 and reduction gearing by an electric motor 10. Batteries in a receptacle 3 supply current to the motor 10 and also to the truckpropelling motor. Ready access to these batteries is afforded by screw jacks provided at each end of the front girder 4 of the superstructure 5. When access to the cover panel of the battery receptacle is desired, the front clamps 6 are loosened and the jacks operated so as to raise the longitudinal girders of the superstructure 5 and relieve the panel from the weight of the superstructure.
Patent GB-892336-A (GB)
Title: Improvements in and relating to speed responsive switch actuating mechanisms
Inventor: PEARSON EDWARD
IPC: H01H35/10
Filed: 1958-06-03
Abstract: 892,336. Centrifugal switches. ENGLISH ELECTRIC CO. Ltd. June 2, 1959 [June 3, 1958], No. 17687/58. Class 38 (5). A speed-responsive switch for an electric motor comprises a bush 14 secured to the rotor shaft 15 and carrying a spring-steel frame 11 provided with four resilient lugs 12 having notches 13 to receive lugs 16 of a thin spring- plate 10 which is held in a bowed condition as shown, when the motor is stationary. The spring-plate 10 has an elongated central clearance hole and is loosely attached to an annular slider 19 by means of grooves 21 in lugs 20. The slider 19 engages a rubbing plate 22 to hold a contact 24 on an insulated spring-strip 23 mounted on the motor end-plate (not shown) against a fixed contact 25, the plate 23 being biased to the contacts-open position. Weights 18 are attached to the ends 17 of spring-plate 10 and when the shaft 15 rotates centrifugal force causes the weights 18 to exert a bending moment about notches 13 until at a predetermined speed the centre part of spring- plate 10 snaps over to allow contacts 24, 25 to open (Fig. 2, not shown). The initial movement of the spring-plate 10 is followed up by the springiness of strip 23 such that contacts 24, 25 do not open until the snap-over occurs. The slider 19 abuts bush 14 to stop the plate 10 attaining a stable reversed position and when the speed falls below another predetermined value the plate automatically snaps back to the position shown in Fig. 1.
Patent GB-458426-A (GB)
Title: Thermostat for electric ranges
IPC: G05D23/275
Filed: 1935-06-20
Abstract: 458,426. Thermostats. WILCOLATOR CO., 17, Nevada Street, Newark, New Jersey, U.S.A.-(Assignees of Fonseca, E. L.) June 20, 1935, No. 17706. Convention date, June 20, 1934. [Class 64 (ii)] [See also Group XXXVII] In a regulator for electric ovens &c. a thermostat responsive to the heat emitted by the oven operative connections to a switch in the circuit of the oven, means responsive to heat emitted from an extraneous source being adapted to vary said operative connections to compensate for the effects of extraneous heat on the thermostat. A container 19 filled with expansible liquid is placed within the oven and communicates by means of a capillary tube 20 with a space 27 in the remotely-disposed switch casing between a cylindrical portion 22 and a flexible metallic bellows 24, one end of which is secured to the switch-operating rod 29. A switch member 47 has attached thereto a bimetallic strip 60 having a bifurcated end 61 bearing on a shoulder 33 of a nut 32 screwed to the end of the operating rod 29. On increase of oven temperature above a predetermined amount, the nut 32 is moved to the right and allows the distorted central limb 47 to snap over the switch member to the " off position. Decrease in temperature of the oven causes return movement of the rod under the action of a spring 31 and snaps back the switch to the " on " position. The bimetallic strip 60 connecting the member 47 to the operating rod compensates for variations in the temperature of the air surrounding the switch by deflecting in correspondence with such variations and varying the position at which the operating rod causes switch operation, so neutralizing any expansion or contraction of the bellows 24 caused by such extraneous changes in temperature which would produce incorrect operation. Thus, the switch casing may be arranged adjacent to hot-plates &c. without altering its correct response to oven temperature. A setting knob 18 enables the temperature of operation to be varied by rotating the nut 32 on the rod 29, projections 34 of the nut sliding in slots 35 of the setting-member during its normal operation.
Patent GB-152740-A (GB)
Title: Improved method of applying nickel carbonyl in hydrogenation processes
IPC: C11C3/12
Filed: 1919-07-15
Abstract: In a process of hydrogenating oils and other organic compounds in which nickel carbonyl is employed as the source of the catalyst as described in Specification 18998/12, excess of carbon monoxide in the hydrogenator is obviated by separating the carbonyl from the volatilizer gases by means of an absorbent before introducing the carbonyl into the hydrogenator.  Thus the volatilizer gases are passed through a scrubber or scrubbers packed with porous material impregnated with an absorbent such as oil, or filled with "activated" charcoal, and the gases stripped of their carbonyl content are returned with or without enrichment with carbon monoxide to the volatilizer for the treatment to be repeated; by which means, if water gas is employed, pure hydrogen may be eventually obtained.  The absorbed nickel carbonyl is recovered by passing the hydrogen required for hydrogenation through the absorber, or through a second scrubber fed with the oil that runs away from the absorber; or the saturated charcoal may be suspended in the material to be hydrogenated, or carried into it by means of the hydrogenating gas. Birchwood charcoal previously dried by heating in hydrogen, is advantageously employed.ALSO:Nickel carbonyl is separated from the volatilizer gases by passage through a scrubber or scrubbers packed with porous materials impregnated with an absorbent such as oil, or filled with "activated" charcoal.  Birchwood charcoal previously dried by heating in hydrogen, is advantageously employed.  The carbonyl is recovered by passing a suitable gas through the absorber, or through a second scrubber fed with the oil that runs away from the absorber.  Specification 18998/12, [Class 1 (i), Chemical processes &c.], is referred to.
Patent GB-176724-A (GB)
Title: Improvements relating to appliances for playing games resembling lawn tennis
IPC: A63B67/04
Filed: 1921-06-29
Abstract: 176,724. Hopwood, W. June 29, 1921. Lawn-tennis and like nets; table games.- Relates to an appliance for playing a game resembling lawn tennis comprising a frame, the bottom portion of which may be of string net a, Fig. 1, while the upper portion b is made of a material which causes a ball projected there against to rebound. One or more gaps c or pockets d are provided in the frame immediately above the net, through or into which a ball may be projected. To prevent the ball going out of bounds the frame may have attached to it a surround of netting sloping forwards away from the frame. The frame need not necessarily be flat; it may take, for example, the shapes shown in Figs. 6 and 7. The appliance may be made of sufficient size for outdoor use or in miniature for fitting to a parlour table.
Patent GB-479026-A (GB)
Title: A process for treating fabric containing rubber thread
IPC: B29D99/00
Filed: 1936-06-26
Abstract: Fabrics comprising rubber threads, e.g. ordinary rubber threads or those having an extensibility-reducing agent such as glue incorporated therein, are held under tension during part or whole of the rubber-vulcanization step.  The glue may be wholly or partly removed during vulcanization.  In examples: (1) cloth having a weft composed of rubber threads set at 50 per cent elongation as described in Specification 447,972 is wound on and secured to a hollow perforated roller and immersed in boiling water for 1 hour.  The water removes most of the glue, and the thread tends to contract and is thus vulcanized under tension; (2) cloth containing as weft unstretched rubber-glue thread, is stretched 25 per cent on a stentering frame and in this condition passed slowly through hot water which desets and vulcanizes the thread; (3) fabric containing as weft ordinary unvulcanized rubber thread racked to about 2 1/2 times its original length is passed through hot water on a stentering machine set to a width of 3/4 that of the loom on which the fabric was woven.  The cloth tends to retract to a width less than the width of the stentering machine, and is thus vulcanized under tension. Specifications 448,098, 449,314, 449,462,459,434, and 467,083 also are referred to.