baber/WOPTO huggingface dataset:
Patent GB-1420803-A (GB)
Title: Electron microscopes
IPC: H01J37/295
Filed: 1973-06-28
Abstract: 1420803 Electron microscope lenses ASSOCIATED ELECTRICAL INDUSTRIES Ltd 26 June 1974 [28 June 1973] 30764/73 Heading H1D In a transmission electron microscope and X- ray probe analyser the electrons diverging from the image of the tungsten filament thermionic cathode formed by a first condenser lens (11, Fig. 1, not shown) enter from above and are focused on to a sample on support 33, forming an image of the filament source 100 nm in size, by means of the gap field in the upper part of combined second condenser and objective lens 12. Each part comprises a gapped iron magnetic circuit 23, 29 or 24, 30 having annular symmetry and surrounding an energizing winding 31 or 32, the currents being independently adjustable and the radial fields produced in dished iron plate 25 tending to cancel. The condenser component 23 holds four pairs of deflector coils 37 (only two shown) for adjustment of the beam position or for scanning. X-rays emitted by the electron irradiated area of the sample in holder 33 within the lower gap produce a signal from detector 38, its siting in direct line from the sample necessitating enlargement of hole 26. In an alternative embodiment hole 26 is reduced, the X-rays emerging through oblique holes 39 arranged symmetrically, one or more pointing at detector or detectors 38.
Patent GB-1304979-A (GB)
IPC: C11D3/20
Filed: 1971-07-01
Abstract: 1304979 Detergents containing sequestering agents ATLAS CHEMICAL INDUSTRIES Inc 1 July 1971 [2 July 1970] 30865/71 Heading C5D  A sequestrant composition which may be added to aqueous alkali metal hydroxides in bottle washing compositions comprises a mixture of (A) citric acid, tartaric acid or a polyhydroxy monocarboxylic acid containing from 6 to 8 carbon atoms and having the formula CH 2 OH(CHOH) n COOH wherein n is 4 to 6, or a water-soluble salt thereof and (B) a polyhydroxy dicarboxylic acid containing 5 to 8 C atoms or a polyhydroxy monocarboxylic ketoacid containing from 6 to 8 C atoms, or a watersoluble salt thereof. Compounds (A) include glueonic acid, gulonic acid, glucoheptanoic acid and glucoactanoic acid. Compounds (B) include arabotrihydroxyglutaric acid, saccharic acid, mucic acid, allomucic acid, talomucic acid; 2,3,4,5,6 - pentahydroxyheptanedioic acid and 2,3,4,5,6,7 - hexahydroxyactanedioic acid; 2-[3- or 4-]-ketogulonic acids, 2-[3-, 4- or 5-]- ketogluconic acids and 2-ketoglucoheptanoic acid. The acids may be in the form of the alkali  metal or ammonium salts. The wt. ratio of compound (A) to compound (B) is at least 1 and is preferably 2 to 10.
Patent GB-181317-A (GB)
Title: Improvements in processes and machines for shaping bodies out of plastic material
IPC: C06C7/02
Filed: 1921-11-18
Abstract: 181,317. Grossmann, H. June 9, 1921, [Convention date]. Addition to 172,287. Extrusion machines; rolling-machines; feeding materials.-Consists in the provision of apparatus adapted .to supply the material to the shaping- discs described in the parent Specification in the form of a continuous cord, which cord is allowed to hang freely between the nozzle 57 of the cordforming apparatus and the moulding-discs to compensate for irregularities in the feed. As shown, the material is supplied to a hopper 60 provided with a housing 51 in which is eccentrically mounted a cylinder 53 carrying radiallysliding blades 56 moved relatively to the cylinder by contact with the housing and a fixed central disc 54, which blades force the material through a passage 61 terminating in an interchangeable nozzle 57 from which the issuing cord passes to the moulding-discs. A burner 58, controlled by a cock 59, may be provided beneath the housing 51. Specification 181,312 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that a uniform stream of material may be obtained by a worm or other feed. The cord-fcrming apparatus is stated to be applicable to the manufacture of vermicelli, smokeless powder, &c. This subject-matter does not appear in the Specification as accepted.
Patent GB-383405-A (GB)
Title: Improvements in electrical relays
IPC: H01H50/20
Filed: 1931-11-09
Abstract: 383,405. Electromagnetic switches.' THORNE, C. G., 7, Kingscliffe Flats, Milson Road, Cremorne, and DANGAR GEDYE & CO., Ltd., 10, Young Street, Sydney, both in New South Wales, Australia. Nov. 9, 1931, No. 31009. [Class 38 (v).] A double-contact electromagnetic relay has a centrallydisposed operating rod 10 carrying conical contact - members 13<1>, 14<1> at its upper and lower ends the upper contact being normally held against its cooperating fixed contact 13<2> by a spring 16. The rod 10 carries a fiat armature 11 which on a predetermined energization of a voltage winding 2 is attracted against the spring to break contacts 13<1>, 13<2> and to make contacts 14<1>, 14<2>. The fixed contact members are of dished formation and are slit at 15 to form spring fingers to engage the coned movable contacts. The electromagnet is provided with a series winding 1 which, when the relay is employed as an automatic cut-out in a battery-charging system carries current in a direction which assists the shunt winding in holding the armature in its displaced position except in cases of reverse current due to sudden collapse of the generator voltage. The relay is mounted on an insulating. base 7 fitted with terminals, the electromagnet and contact. assembly being supported in a framework 6. The solenoid is fitted with a central'core ,4 of magnetic material fitted at its upper end with a non-magnetic washer 5 to prevent sticking of the armature. Current is conducted to the movable contact members through a flexible lead 27 attached to the rod 10.
Patent GB-602778-A (GB)
Title: Improvements in or relating to building constructions and to tie-rods for use therein
IPC: E04B1/41
Filed: 1945-11-19
Abstract: 602,778. Wall ties. KING, L. Nov. 19, 1945, No. 31049. [Class 20(iv)] The outer and inner sets of the brickwork of cavity walls are tied by rods 4 having offset portions 3 received in the frogs 9 of the bricks. The ends of the rods are tapped to receive bolts 12 by which the ties are tensioned, the bolts being removed after the mortar 10 has set. The intermediate portion 1 of the rod may also be offset and wedge shaped portions, on which washers 7 slide, may be formed thereon. The ties may be applied to walls built from the units described in Specification 558.234,
Patent GB-951626-A (GB)
Title: A method of blasting earth formations
Inventor: HRADEL JOSEPH RUDOLPH
IPC: F42C19/09
Filed: 1960-09-09
Abstract: 951,626. Blasting charges. DOW CHEMICAL CO. Sept. 9, 1960, No. 31098/60. Heading F3A. A device for detonating blasting explosives comprises a hollow charge 111, which may be RDX, with a metal covering 112 and a metal liner 114 for the conical cavity 113. The device tapers rearwardly and ends in a cylindrical portion 115 having a transverse through passage 117 intersecting an axial passage 118 which houses a safety fuze cord or an electric blasting cap. The device is enclosed in a casing 119 closed at the forward end by a cap 127 and ending at the rear in a tube 121 with radial fins 123. The casing 119 and cap 127 may be made of polystyrene, glass, diecast metal, ceramics, polyethylene, natural rubber, synthetic rubber or resin, but is preferably of frangible material. To lower and suspend the device in a borehole, leads from a blasting cap 135 in the tube 121 are passed through a slot 122 in the tube and taken through a lug 133 on the cap 127 before being connected to a firing device. The device may be placed in the borehole with the cavity 113 facing the mouth of the hole before charging the hole with the blasting explosive, or the hole may be first charged and the device then lowered on to it with the cavity towards the charge. The blasting charge may be ammonium nitrate and fuel oil, ammonium nitrate with ammonia and light metal, ammonium nitrate with aqueous ammonia and light metal, ammonium nitrate with water and light metal, black powder or fertilizer grade ammonium nitrate. Specification 881,694 is referred to.
Patent GB-390241-A (GB)
Title: Improvements in variable pitch propeller
IPC: B64C11/34
Filed: 1931-11-10
Abstract: 390,241. Variable-pitch propellers. LANDRUM, J. P., 7225, 2nd Avenue, Birmingham, Alabama, U.S.A. Nov. 10, 1931, No. 31116. [Class 114.] In a variable-pitch propeller the blades are held in minimum pitch position by a latch which when released allow the blades to move to maximum pitch position. The blades 17, 18 clamped to sockets 21 are rotated to adjust the pitch by crank pins 33 mounted on the hub and linked together by centrifugal mechanism which includes spring-biased quadrants 41 carrying weights which move outwards under centrifugal action to change the pitch from minimum to maximum. The crank-arm ends work on roller bearings in elongated slots 37 in the sockets 21. The manually-operated lever 57 carries a roller designed to rotate a trigger 54 and so move a latch 49 on the other end of the common shaft 48 out of engagement with a notch 51 in the quadrant 52 forming part of the centrifugal mechanism. Under sufficient speed conditions the propellers move direct to the maximum pitch position. On return to the minimum pitch position, the latch re-engages with the notch and retains the propellers in the minimum pitch position. Reference is made to Specification 390,242.
Patent GB-520117-A (GB)
Title: Improvements in or relating to electron multipliers
IPC: H01J43/20
Filed: 1938-10-27
Abstract: 520,117. Electron multipliers. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 27, 1938, No. 31156. Convention date, Oct. 30, 1937. [Class 39 (i)] To prevent passage of ions in the anode to cathode direction in an electron multiplier the multiplying electrodes 2-10 are mounted on each side of and extending from the axis of the tube between the cathode 1 and the anode 11: the electrodes 2-10 are L-shaped, with the curved or re-entrant angular surface turned towards the axis and are spaced so that the distance d, Fig. 2, is less than the distance c: and so that the long legs of each L intersects the lines drawn between the short legs of the two previous L's, and may cross the central axis. The cathode and anode are shaped to correspond to the equipotential surfaces which' would exist if the series of electrodes were endless. The portion 1m of the cathode is foraminous, so as to pass the light from the source on to the photo-sensitive part. The electrodes are kept at successively higher potentials-which are exact multiples of each other-by means of a potentiometer. It is stated that the arrangements illustrated give a low dark current. The cathode may be thermionic and control electrodes may be provided;
Patent GB-1195852-A (GB)
Title: Hydrogen continuous production method and apparatus
Inventor: MCBRIDE ROBERT BENNIS
IPC: B01D53/22
Filed: 1967-07-06
Abstract: 1,195,852. Separating hydrogen by diffusion. UNION -CARBIDE CORP..6 July, (1967, No. 31165/67. Heading B1L. Hydrogen of high purity is separated from impunities present in a feedstock by passing the feed gas by line 23 to, a guard chamber 25 filled with an adsorbent, e.g. a molecular sieve, then by lines 27 and 31 to a conditioner 33 containing a hydrogenation or a combined hydrogenation-deoxygenation catalyst, before heating the stream in heater 37 and passing the heated stream, at a temperature adequate for diffusion, e.g. about 400C., by line 39 .to elongated diffuser 43 where the stream is caused to impinge on the 'palladium or palladium alloy foil surfaces of a number of diffusion drum elements. Pure hydrogen which diffuses through these surfaces is taken from the elements by line 89, and depleted feedstock by .line 87. Suitably, both take-off streams are passed in indirect heat exchange with feedstock in a heat exchanger 3.9. In Figs. 2-4 (not shown), constructional details of the diffuser and of the diffusion elements are provided. In the examples, the feedstock comprised 50-60% hydrogen, the remainder comprising mostly methane with very .small amounts of other gaseous hydrocarbons.
Patent GB-1510935-A (GB)
Title: Apparatus and method for forming tapered tubular shafts
IPC: F16C3/02
Filed: 1976-07-27
Abstract: 1510935 Golf club shaft H P HOGARTH 27 July 1976 31177/76 Heading A6D [Also in Divisions Al and B5] A tubular, tapered golf club shaft comprises successive layers C1-C4 of fibrereinforced thermosetting resin, the fibres being pre-tensioned and non-contacting. Each layer C (Fig. 3) comprises glass, boron or graphite carbon fibres 10 totally surrounded by phenolic, epoxy, or alkyd etc. resin 12. The resin is more elastic than the fibres, which are said to resist parting from the resin on bending of the shaft, due to their pre-tensioning. Fig. 1 shows a shell G and core d used in producing the shaft (see Divisions B4-B5).
Patent GB-1197337-A (GB)
Title: Organosilicon Compositions
IPC: C08L83/04
Filed: 1967-07-06
Abstract: 1,197,337. Mixed vinyl polysiloxane compositions; corneal prostheses. DOW CORNING CORP. 6 July, 1967 [27 July, 1966], No. 31181/67. Heading C3T. An organopolysiloxane composition comprises 85-95 parts by weight of (A) a dimethylvinylsilyl-terminated copolymer having 6-9 mol. per cent phenylmethylsiloxane units, 0À1-0À2 mol. per cent methylvinylsiloxane units and the balance dimethylsiloxane units, and 15-5 parts, to a total of 100, of (B) a dimethylvinylsilyl -terminated copolymer having 15-25 mol. per cent methylvinylsiloxane units, 4-6 mol. per cent of phenylmethylsiloxane units and the balance dimethylsiloxane units. The composition may also include reinforcing silica, e.g. 5-30 parts of trimethylsilyl-treated silica, and an organic peroxide vulcanizing agent, e.g. 2 : 5-dimethyl-2 : 5-di-(t-butylper. oxy)-hexane; such compositions are described in the examples. The compositions are used to prepare corneal prostheses.
Patent GB-520708-A (GB)
Title: Improvements in and relating to interlocking sheet piling
IPC: E02D5/08
Filed: 1938-10-28
Abstract: 520,708. Sheet piling. ANNISON, R. H., and BULL, J. Oct. 28,1938, No. 31286. [Class 68 (ii)] Interlocking sheet  piling of Z formation with a tongue 5 at one end and a groove 6 at the other and in which the joints lie within the limiting width of the exterior of the flanges is constructed with the axes of the tongue and the groove turned through angles of 45 degrees from parallelism with the flanges.
Patent GB-333800-A (GB)
Title: Improvements in or relating to machines for rolling metal tubes
IPC: B21B19/08
Filed: 1929-10-15
Abstract: 333,800. Witkowitzer Bergbau-und Eisenh³tten Gewerkschaft, and Keller, E. Nov. 20, 1928, [Convention date]. Rolling annular bodies; skew-rolling.-A fixed mandrel A for a tube-rolling machine carries obliquely arranged freely mounted bi-conical rolls c. A freely mounted guide roll F is carried on a fixed spigot E. The tube T is fed between skewrolls D.
Patent GB-533833-A (GB)
Title: Improvements in machines for rolling screw-threads
IPC: B21H3/04
Filed: 1939-12-04
Abstract: 533,833. Rolling screw-threads. WOLSELEY MOTORS, Ltd., and GOULD, G. Dec. 4, 1939, No. 31372. [Class 83 (iv)] Axial rolling.-In a thread-rolling machine comprising opposed driven rolls 1; 2 the rolls have the same angular speed but have slightlydifferent diameters so as to cause the workpiece 12 to be fed or drawn between the rolls from the position AA to the finishing position BB. The roll spindles carry gears 6, 7 respectively, coacting with a common driving gear 8. In order to maintain throughout the operation exact opposition, Fig. 2, between the crests of one roll thread and the troughs of the other, the roll 2, Fig. 3, is axially movable on its spindle against a spring 13. At the start of the opeiation (position BB) the roll 2 engages an abut-. ment 14 and during the rolling of the thread the roll is moved axially owing to the tracking of its thread with that on the work piece. The roll threads are multi-start, and their helical angle is the same as that to be produced on the work.
Patent GB-1308175-A (GB)
Title: Television camera utilizina a colour encoding filter
IPC: H04N9/07
Filed: 1970-06-29
Abstract: 1308175 Colour television RCA CORPORATION 29 June 1970 [30 June 1969] 31376/70 Heading H4F A multistripe colour encoding filter 14, Fig. 1, is placed in front of the target 15 of a single camera tube to provide luminance L and colour difference signals (B-G) and (G-R) as low frequency (0-1 MH 3 ) and high frequency (1-5 MH 3 ) modulations respectively of the colour stripes repetition frequency and its 2nd harmonic. The filter (Fig. 3) is divided into many sections (40), each exhibiting from left to right successive maximum transmissivities for red, blue and green, the transmissivity for green being greatest. (Fig. 4) shows in detail how the filter (14) can be divided into two overlying filters (41) and (43) and how green light is absorbed on passing through the two filters to give the characteristic intensity variation for two sections, shown at (45). Intensity variations of light of various colours passing through three sections of the filter, are shown at Fig. 5a. The stripes pass white light equally, so there is no variation. The scene 11 to be televised is focused on the filter 14 and the image of both is carried to the camera tube by fibre optic layer 10. If the scene is composed of equal strips of white, yellow ... red, blue and is projected on to 21 section of the filter, the video output of the tube will be as shown at Fig. 5(a). The luminance signal (b) is obtained as the average of (a) by means of low pass filter 18 (0-1 MH 3 ). The video signals are also passed through a band-pass filter 19 (1-5 MH 3 ) which passes the 2 MH 3  carrier and its sidebands, and the 4 MH 3  2nd harmonic and its side-bands to give signal (c). Two rectifier/storage circuits 37, connected in parallel opposition, compare the positive and negative peak values of signal (c) to give signal (d) which constitutes the (B-G) difference signal. To obtain the (G-R) difference signal, the 2nd harmonic of (c) is phase shifted at 20 and recombined with the carrier. This gives signal (e). A second rectifier/storage circuit 38 yields the (B-G) difference signal and the matrix 27 the R, B and G signals. The luminance signal is comprised of 0À58 G + 0À25 R + 0À17 B, i.e. substantially the standard composition of 0À59 G + 0À30 R + 0À11 B. In the arrangement of (Fig. 2) the 2nd harmonic and its side bands are synchronously detected by a reference formed by frequency doubling the carrier. The frequency doubled carrier is phase shifted 90 degrees for the (G-R) detection. The image of the scene and filter 14 is focused on the tube by lens (64). The stripes may be slightly turned away from the perpendicular to the scan lines if interlaced scanning is used.
Patent GB-742562-A (GB)
Title: Improvements relating to the mounting of indicator instruments
IPC: G01P1/00
Filed: 1953-11-12
Abstract: 742,562. Resilient mountings. DAIMLERBENZ AKT.-GES. Nov. 12, 1953 [Nov. 12, 1952], No. 31394/53. Class 108 (3). [Also in Groups XVIII and XIX] An indicating instrument 1 either driven from outside an enclosing housing 11 or comprising a running mechanism is supported with its driving transmission or running mechanism in its housing with the interposition of soundabsorbing substances and the housing interior is provided with a sound-absorbing coating. A speedometer 1 with driving connection tube 2 is fixed to an intermediate plate 6 by screws 3 through sound-absorbing washers or a hollow plug with collars 4, 5 and the plate 6 is fixed to the housing 11 by screws 7 through soundabsorbing sleeves or washers 8, 9. The inside of the housing is sprayed with a sound-absorbing medium. The tube 2 passes through openings 13, 14 without metallic contact, the gap in opening 14 being sealed by a rubber sleeve 15 or ring to exclude moisture and dust. The sheath 18 of the transmission shaft 17 is connected to the tube 2 by a cap nut 16 and is covered with a plastic or rubber sheath 19 to prevent metallic contact with other leads. The instrument may be a clock.
Patent GB-1399914-A (GB)
Title: Regulating devices for pouring molten metal
IPC: B22D18/08
Filed: 1972-07-05
Abstract: 1399914 Metal pouring apparatus REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 5 July 1972 [21 July 1971] 31399/72 Heading B3F [Also in Division F1] A regulating device for use in pouring foundry parts, in which the metal is introduced into a mould by delivery from a melting furnace 1 under the action of gas under pressure, comprises means for generating a pilot reference pressure (regulator 14, throttling device 15 and regulator 17), means for generating a datum pressure (water column 13), means for adjusting the datum pressure (dosing pump 22, air reservoir 23, separator 25 and electrically-controlled valve 20), means for comparing and identifying pilot and datum pressures (leakage or diaphragm regulator 17), means for comparing the furnace pressure with the pilot reference pressure (regulator 45), means for controlling the supply of filling gas to the furnace with a large flow rate (pressure-regulating device 35, effecting closure of valve 53 as function of furnace pressure) and for the supply at a small flow rate (pressureregulating device 34 effecting valve 62), thereby permitting a predetermined programming of the flow-rates and pressures for filling the mould. The device may be used in low pressure die casting installations or in gravity pouring installations using sand moulds.
Patent GB-1285122-A (GB)
Title: Collapsible tube container
Inventor: STRAZDINS ATIS
IPC: G11B5/55
Filed: 1970-06-30
Abstract: 1285122 Collapsible tubes A STRAZDINS 30 June 1970 31515/70 Heading B8D The body of a collapsible tube has an even number of longitudinally extending thinned wall portions 22 constituting of at least two pairs of opposed hinge lines, the internal surfaces of the intervening remaining wall portions being planar to form sharp corners which coincide with the hinge lines so that the tube may be laterally collapsed on to a plane 23 containing one pair of the hinge lines and bring the planar surfaces on either side of the plane into flat mutual contact. One portion 20A of a nozzle shoulder 20 at one end of the tube is thinner than a laterally-opposed portion 20B to permit collapse of the former on to the latter. The thinned other end 19 of the tube, which may have a hexagonal or cylindrical configuration, Figs. 2 and 7 (not shown), is sealed by heat sealing or adhesion. In modifications, Figs. 11 and 12 (not shown), the tube is provided with four and eight thinned wall portions respectively. In another modification, Figs. 8-10 (not shown), the tube body is of externally hexagonal configuration with two opposed wall portions 25 of the intervening walls being thicker than the remaining intervening walls 26.
Patent GB-281642-A (GB)
Title: Process and apparatus for the concentration of dilute nitric acid
IPC: C01B21/44
Filed: 1927-11-23
Abstract: 281,642. Norsk Hydro - Elektrisk Kvaelstofaktieselskab. Dec. 6, 1926, [Convention date]. Acids, distilling and concentrating. - The continuous concentration of dilute nitric acid by boiling and rectification is carried out under reduced pressure. Dilute nitric acid is introduced through a sealing tube B into the upper part of a rectification column A connected by a pipe C 'to condensers and a source of vacuum. The acid falling down the column A passes through a series of boilers D. E, F, being withdrawn at G when sufficiently concentrated. The vapours from the boiler F are passed into the boiler E and the combined vapours are passed to the next boiler in succession. Specification 22746/13 is referred to.