baber/WOPTO huggingface dataset:
Patent GB-378725-A (GB)
Title: Improvements in magazine pencils
IPC: B43K27/04
Filed: 1931-11-23
Abstract: 378,725. Pencil holders. MELENDEZ, L. E., 55, West 42nd Street, New York, U.S.A. Nov. 23, 1931, No. 32423. [Class 146 (iii).] In a magazine pencil holder comprising a carrier for a number of loose leads, a member for selecting any desired lead and conveying it to the writing point, and a clamping-member at the point, a transparent barrel through which the selecting operation may be viewed is provided. The transparent barrel 1, Fig. 2, is fitted with a rotatable point member 17, a tight-fitting lead carrier 4, a reinforcing metal sleeve 10, and a rotatable ferrule 11. An externally-threaded lead tube 7 fits tightly into the member 4 and engages the point member 17, so that by rotation of the point member 17 in known manner the lead may be gripped in the tube 7. The lead carrier 4 has a longitudinal main channel 4a, Fig. 3, coinciding with the tube 7, and a series of peripheral channels 5 to hold reverse leads 6. A selector member 12 fits tightly in the ferrule 11 and is rotatable in the sleeve 10. The member 12 is provided with a longitudinal slot 13, Fig. 4, coinciding with both the central bore 4a and any one of the lead channels 5, so that, by rotating the ferrule 11 and member 12 to the desired position and by suitably tilting the pencil, any desired lead can be fed from its groove 5 into the slot 13, and thence, via the bore 4a, to the lead tube 7, the operation being visible through the span between the tube 10 and the member 4. The ferrule 11 may house an eraser 14. A washer 9 prevents escape of the leads.
Patent GB-1380507-A (GB)
Title: Process for the preparation of 2,4-diaryl thiazoline and thiazole  derivatives
IPC: C07D277/32
Filed: 1972-07-12
Abstract: 1380507 2,4-Diaryl-thiazolines and thiazoles LABORATORIO PRODOTTI BIOLOGICI BRAGLIA SpA 12 July 1972 [20 July 1971] 32498/72 Heading C2C Compounds of general Formula I in which R 1  and R 2  may be the same or different and are phenyl, naphthyl or heterocyclic groups optionally substituted by alkyl, halogen, hydroxyl, nitro or trifluoromethyl, and R 3  is a radical formed from a C 2-6  aliphatic carboxylic acid or a salt nitrile or ester thereof, are prepared by reaction of a compound (6) of formula R 2 -CO-CH(SH)-R 3  with a nitrile R 1 -CN. Compound (6) is prepared by reaction of an α- halogenoketone, R 2 -CO-H(Hal)-R 3 , with an equimolecular amount of sodium or potassium thioacetate in a polar solvent to form a compound (7) of formula which is treated with aqueous alkali. Dehydration of compounds I by heat or acid catalysis produces compounds II  2 - [4 - p - Chlorophenyl - 4 - hydroxy - 2- phenyl - thiazoline - 5 - yl] - acetic acid, its methyl ester and the corresponding thiazole compounds are prepared. Reference has been directed by the Comptroller to Specification 1,262,292.
Patent GB-1445124-A (GB)
Title: Smoking mixtures
IPC: A24B15/16
Filed: 1973-07-09
Abstract: 1445124 Tobacco substitutes IMPERIAL CHEMICAL INDUSTRIES Ltd 31 May 1974 [9 July 1973] 32503/73 Heading A2C [Also in Division C3]  Tobacco substitute, i.e. any solid substance which though not of tobacco origin may be smoked in the same way, contains alkaline inorganic matter such that on slurrying with water to give a 15% by weight solution/suspension it produces a liquor of pH 8.5 to 13 and is in a form suitable for blending with tobacco. The tobacco substitute may be produced by thermal degradation of a carbohydrate e.g. cellulose, starch, ethers thereof, oxidised cellulose and carboxymethyl cellulose. Alkaline matter contained in the tobacco substitute may be lime, magnesia or Na, K, NH 4  carbonates, bicarbonates or hydroxides. Additionally the substitute may contain an ammonia precursor e.g. amides, urea, biuret, glycine, alanine and guanidine. Examples describe the fabrication of cigarettes from equal quantities of tobacco and a substitute of degraded cellulose, glyceral, CaCO 3 , MgCO 3 , bentonite, Na 2 CO 3  and sodium carboxymethylcellulose slurried at pH 9.5.
Patent GB-916904-A (GB)
Title: Multi-limb magnetic cores
Inventor: SMITH JAMES BUCHANAN
IPC: H01F27/245
Filed: 1960-09-21
Abstract: 916,904. Transformers. PEEBLES & CO. Ltd., BRUCE. Sept. 21, 1961 [Sept. 21, 1960], No. 32508/60. Class 38 (2). A magnetic core, e.g. for a three-phase transformer, comprises three laminated core units, separated by ducts, 13, each of the three limbs and the yokes of the core being formed by limbs and yokes of two of the core units, e.g. limbs 4, 5, of core units 1, 2 form the central limb, a flux path between each pair of core units being provided by stacked junction laminations 15. The longer sides 16 of the junction laminations are inclined alternately one one side and the other of the direction of the length of the core unit laminations. All laminations may be grain orientated in the directions shown by the arrows 17, 18.
Patent GB-1457735-A (GB)
Title: Root crop harvesters
IPC: A01D27/00
Filed: 1975-08-04
Abstract: 1457735 Root crop harvesters J D DYSON and C R DYSON 4 Aug 1975 32536/75 Heading A1F A root-crop harvester has a topper unit which precedes a crop-lifter unit, the topper unit being adjustable laterally of the harvester separately from the lifter unit and the latter being free to adjust its position laterally of the harvester within predetermined limits and being arranged to thereby effect a lateral adjustment of the tapper unit. In the embodiment shown the topper unit (not shown) is mounted on a frame 14 which is slidably mounted on a transverse beam 10; rearwardly of beam 10 is a second transverse beam 12 which carries a frame 40 mounted thereon by rollers 42, the frame 40 carrying the lifter unit comprising, as shown, shares 44 or lifter wheels. The frame 14 is moved laterally by the operation of a hydraulic ram 18, 19, 20 controlled by a spool valve 24. A rod rigidly connected to and operating the spool valve carries a roller 32 at its end remote from the valve which engages a cam bar 46 mounted on the frame 40, thus lateral movement of the frame 40, from the neutral position shown, in response to deviations in the rows of crops being harvested, effects the operation of the spool valve and consequential lateral adjustments of the frame 14.
Patent GB-617751-A (GB)
Title: Improvements in inflatable members for wheel brakes
IPC: F16D51/08
Filed: 1946-11-02
Abstract: An inflatable member for operating wheelbrakes is made of rubber reinforced with glass fabric, and may have a tread part made of rubber, layers of glass fabric impregnated with rubber, or rubber reinforced with glass flock.  The rubber used for any part of the member may be polymerised chlorobutadiene or Silicone type.
Patent GB-858207-A (GB)
Title: Improvements in or relating to kinescope arrangements
Inventor: HARMAN REGINALD RICHARD
IPC: H04N9/28
Filed: 1958-10-13
Abstract: 858,207. Colour television tubes. GENERAL ELECTRIC CO. Ltd. Oct. 1, 1959 [Oct. 13, 1958], No. 32593/58. Class 39(1). [Also in Group XL(c)] Relates to a television arrangement comprising a three-gun, shadowmask, colour cathoderay tube (R.C.A. type 21 AXP 22A) in which the three guns are off-set in different directions from the tube axis. In accordance with the invention, the conventional convergence system (an electromagnetic deflection assembly associated with each gun supplied with an adjustable direct current and line-and frame-frequency saw-tooth and parabolic waves), which is provided to maintain the three beams in register over a scanned raster, is supplemented by a further convergence system associated with only one gun 3 (the " blue " gun in the example disclosed) and formed of a coil 17 mounted outside the tube, a curved hollow pole piece mounted within the tube on the gun, and a permanent magnet 22 with its axis at right-angles to the tube axis rotatably mounted for adjustment in a cylindrical holder 19. In operation of the tube, either the line or frame scan direction is arranged to correspond to the direction in which gun 3 is off-set from the tube axis. As a consequence, the conventional convergence system for gun 3 is able to effect control in only one (respectively the line or frame) direction. Correction in the other direction is then effected by the further convergence system which operates on the beam at rightangles to the conventional system, coil 17 being supplied with a saw-tooth current respectively of frame or line frequency to introduce dynamic correction and magnet 22 being adjusted for static correction. The Specification includes details of the procedure for adjusting the conventional and additional convergence systems. A circuit for supplying the line- and frame-waves to the convergence systems is described with reference to Fig. 4 (not shown).
Patent GB-1360899-A (GB)
Title: Method of manufacturing polyamides by anionic polymerization  and copolymerization of cyclic lactams
IPC: C08G69/20
Filed: 1972-07-12
Abstract: 1360899 Anionic polymerization of lactams CESKOSLOVENSKA AKADEMIE VED 12 July 1972 [27 July 1971(2)] 32634/72 Heading C3R The anionic polymerization of lactams is effected in the presence of co-catalysts of the formulae where R<SP>1</SP> to R<SP>3</SP> are C 1 -C 18  alkyl or alkenyl; aralkyl, alkoxyaryl or dialkylaminoaryl, the alkyl portion in each case being C 1 -C 6 ; aryl with 1 to 3 benzene rings; or C 5  or 6 6  cycloalkyl; R 4  is one of the preceding or H; and X is O or S. Typical compounds I are cyclic isocyanates and II heterocyclic derivatives of barbituric or thiobarbituric acids; various literature references are given for their preparation. In a preferred embodiment two or more cocatalysts of different activity are used to control the rate of reaction or degree of polymerization. There are 37 examples illustrating the use of various such co-catalysts for the polymerization of caprolactam, alone or with gamma-methyl caprolactam or laurolactam, or pyrrolidone using sodium or its hydride or lactam salt as catalyst.
Patent GB-1148372-A (GB)
Title: Tensioning devices for the haulage chains of mining machines
Inventor: BELL HUGH GRAHAM
IPC: B66D3/02
Filed: 1965-07-30
Abstract: 1,148,372. Chain tensioning. COAL INDUSTRY (PATENTS) Ltd. 22 July, 1966 [30 July, 1965], No. 32671/65. Heading B8B. An assembly for tensioning the static haulage chain C of a mining machine, comprises a device 11 for initially applying the tension to the chain, an arrangement 12 for providing a resilient force in opposition to the chain tension and a gate member operable to relieve the tension in device 11. The tensioning device 11 comprises a double sprocket assembly 19, 20 receiving the chain C being driven by a chain 18 which is driven through a pawl ratchet mechanism 15, 16, 17. The device 11 is mounted on a plate 13 fixed to a tube 25 which extends through the resilient arrangement 12. A flange 27 on the tube 25 engages one end of the resilient arrangement comprising annular metal plates 23 alternately arranged with neoprene rings 24 which are compressible by the flange 27 against a fixed plate 22 when the chain C is tensioned. When sufficient tension has been applied to the chain a slotted gate member is slid into a slideway 28 to engage over a horizontal link of the chain C and the ratchet mechanism is reversed to transfer the chain tension from the ratchet mechanism to the plate 13 via the gate member.
Patent GB-1105745-A (GB)
Title: Improvements in or relating to radar systems
Inventor: HUNTER IAN
IPC: G01S7/24
Filed: 1964-08-11
Abstract: 1,105,745. Radar. MARCONI CO. Ltd. 12 July, 1965 [11 Aug., 1964], No. 32729/64. Heading H4D. In a radar which is mounted on a vehicle and which is of the kind having a true motion P.P.I. display, means are provided for automatically returning the origin of the said display to a predetermined point upon the surface thereof at regular predetermined time intervals, independently of the motion of the vehicle. As described, a ship's log drives an electrical source 4, Fig. 2, the output from which is connected through an analogue converter 5 to a resolver 6, whose rotor is controlled by a motor 7 coupled to the ship's compass. The resolver provides two outputs, respectively representative of mutually perpendicular " N-S " and " E-W " components of " own ship " movement, and these are fed to integrators 8, 9. The outputs of the integrators are amplified by units 10, 11 and are fed to the mutually perpendicular deflection coils 2, 3 of a cathode-ray tube (C.R.T.) 1, with a long afterglow screen, forming part of a normal radar equipment. There are also provided re-set relays 14, 15, associated with the integrators 8, 9, and arranged, when actuated, to re-set them to potentials appropriate to the predetermined point (for example, the centre of the display) to which the origin is to be returned. The potentials are supplied from a source 13 and may be independently adjusted manually. The periodicity of operation of the relays 14, 15 is controlled by a timer 12. The display (Fig. 1, not shown) features several traces for each target, the latest being the brightest, whose lengths and directions indicate the speeds and courses of the said targets. Instead of using a C.R.T. with a long afterglow screen, a storage type of C.R.T. may be provided or signal storage means may be inserted in the channels leading to the display tube. Existing true motion radars can be converted by adding time-controlled equipment as described, which may be arranged for switching in at will.
Patent GB-359734-A (GB)
IPC: F23Q7/00
Filed: 1930-10-31
Abstract: 359,734. Electric cigar lighters. BACH, H., 14, Feyerleinstrasse, Frankforton-Main, Germany. Oct. 31, 1930, No. 32795. Convention date, Nov. 4, 1929. [Class 75 (iii).] A resistance element for electric cigar lighters comprises two or more bands c, c<1> of chrome nickel alloy or other resistance material, connected in parallel and rolled together spirally or otherwise so as to form a closed incandescent surface. The bands are connected together at the ends and insulated from one another except at the ends by a coating of oxide or thin strips of mica &c. As shown, the inner ends of the bands are secured in a slot in the head of a bolt b secured in, but insulated from, a dish-shaped plate a, the outer ends of the bands being passed through a hole in the plate and secured by a rivet d to the outside of the rim. A layer e of insulating material is interposed between the bands and the bottom of the plate. Air openings f are provided in the plate above the incandescent upper surface formed by the edges of the bands.
Patent GB-1019642-A (GB)
Title: Improvements in apparatus for feeding powdered material
Inventor: SULLIVAN STANLEY OSCAR
IPC: B65D88/68
Filed: 1963-08-20
Abstract: 1,019,642. Agitating powders. NOVADEL Ltd. Nov. 17, 1964 [Aug. 20, 1963], No. 32878/63. Heading B1C. [Also in Division B8] Powder is fed from hopper 1 by rotating agitator 50 and is discharged on to a conveyer through one or more apertures in the bottom of the said hopper. Hopper I is provided with a sieve 7 carried by ledge 6 forming part of detachable hopper part 2 and the sieve is provided with a lid 8 having handle 10 so that large lumps of powder caught by the sieve may be ground by the rotation of lid 8 which is provided with an under surface rough for that purpose. Hopper part 2 is detachably secured to hopper 1 by rods 9.
Patent GB-906280-A (GB)
Title: Improvements in or relating to index arrangements comprising index sheets with tab portions
IPC: B42F17/00
Filed: 1960-09-26
Abstract: 906,280. Index sheets. LENNARTZ, W. Sept. 26, 1960 [Sept. 25, 1959], No. 32929/60. Classes 16 and 146 (1). A set of index sheets of identical rhomboidal shape and size is divided into two groups and mounted in a binder with the top and bottom edges of one group inclined upwardly from the binding edge and the top and bottom edges of the other group inclined downwardly, the edges of the sheets opposite to those held in the binder having tabs which lie in a row as shown. The complete row of tabs may be twice as long as that edge of each sheet held in the binder. The sheets in the group bearing tabs A to N are provided with coinciding apertures which expose a marking A-Z on the sheet with the tab bearing the letter O.
Patent GB-1002800-A (GB)
Title: Flexible coupling for transmission shafts
IPC: F16D3/60
Filed: 1964-08-13
Abstract: 1,002,800. Universal joints. SOC. APPLICAZIONI GOMMA ANTIVIBRANTI S.p.A. Aug. 13, 1964 [Sept. 18, 1963], No. 32988/64. Heading F2U. A universal joint between shafts 1, 2, Fig. 1, comprises a chain of tetrahedra 3-6 flexibly connected at their adjacent edges 8-10, the two end tetrahedra being flexibly secured to the shaft ends. Preferably four tetrahedra 3 &c. are employed, so as to obtain a constant velocity ratio between the shafts. The tetrahedra may be formed by collapsing a rubber tube 25, Fig. 4, reinforced by wires, threads &c., 28, in planes 26, 30, 27 alternately at right angles and vulcanizing the collapsed sections together. The tube 25 then takes up the configuration shown in dotted lines. As a modification, the tube may be held collapsed by metal strip clamps 14-16, Fig. 3, arranged alternately at right angles, and secured to the shaft ends by end clamps 12, 13, thus forming four tetrahedra 17-20. As a further modification, the tetrahedra are moulded integrally from rubber, with at least one thread &c. extending between adjacent pairs of tetrahedra.
Patent GB-173946-A (GB)
Title: Improvements in and relating to anti-friction bearings
IPC: F16C19/54
Filed: 1920-11-24
Abstract: 173,946. Schmidt, E. Nov. 24, 1920. Roller bearings.-The rollers of a dust-proof roller bearing are supported by plates 7, 8 lying in annular recesses in the track rings 1, 4. The rollers 9 run on ball bearings on rings 11 mounted on spindles 12 connected to the plates 7, 8, or the balls may run directly on the spindles. The rollers and tracks mav be cylindrical or curved as shown, with point contact. Grooves may be formed in the sides of the rings 1, 4 to enable the rollers to be inserted. In a modification the tracks are cylindrical and the roller surfaces are convex so that the rollers make contact with their edges only.
Patent GB-1134373-A (GB)
Title: Optically aligning an object with a reference mark
Inventor: KOSANKE KURT MAX
IPC: H01L21/68
Filed: 1967-07-20
Abstract: 1,134,373. Optical alignment apparatus. INTERNATIONAL BUSINESS MACHINES CORP. July 20, 1967 [July 21, 1966], No.33299/67. Heading G2J. Apparatus for optically aligning an object such as a semi-conductor wafer 1 with a reference mark 6 comprises an optical deflecting system 15, 16 which transmits a beam of radiation from a reflecting reference mark 5 on wafer 1 towards mark 6, control devices 18, 19 causing deflecting systems 15, 16 to scan the beam over the plane 17 containing mark 6 in accordance with a predetermined raster, a photo-cell 20 interrupting the scanning operation when the beam is incident on mark 6. Printed circuit patterns 22 are to be projected successively on to the photo-sensitized surface of wafer 1, and the wafer is first roughly aligned with the projection axis by screws 3, 4. The optical axis is then finally adjusted relative to the wafer using a subsidiary monochromatic light source 8 to which the wafer surface is insensitive, and a light switch 7. Light polarized at 11 passes via beam-splitter 12, lenses 13, 4 and devices 7, 15, 16 on to the area containing mark 5 and is reflected back through the system on to reference mark plane 17. When alignment of the projection axis is achieved, radiation from source 8 is cut off by switch 7 and the wafer is exposed to the pattern 22 which may be in hologram form using polarizing laser 24. Light switch 7 comprises an electro-optical crystal (31), Fig. 2 (not shown), to which a voltage (V) may be applied whereby the plane of polarization of a monochromatic light beam is rotated through 90 degrees, a birefringent plate (32) and a reflecting plate (33). Polarizer (34) passes light polarised in direction (41) only which is that of light beam (40) from source 8. Beam (44) from the laser is polarized at 90 degrees to direction (41) and is therefore only passed when crystal (31) is energized. Beams (40), (44) correspond to the extraordinary and ordinary beams for plate (32). Deflection units 15, 16 operating in X and Y directions are similar to switch 7 and comprise five electro-optical elements each followed by a birefringent element through which light may pass, depending on the state of the electro-optical elements, either as an ordinary or a deflected extraordinary beam. Each birefringent element is twice the thickness of its preceding element. The scanning deflections of the beam are obtained by activating the electro-optical elements in succession through five inter-connected bi-stable devices each with a switching frequency half that of the preceding device. The outputs of these devices are fed to the electro-optical elements through a logic circuit whereby each may be activated without affecting its neighbours. Rotational adjustment of wafer 1 is possible by using a Piezo-electric torsional support whereby the wafer may be rotated until moirÚ patterns due to lines on the wafer and reference mark reach a standard setting as sensed by photo-cells.
Patent GB-476079-A (GB)
Title: Improvements in or relating to machines for sewing on buttons
IPC: D05B3/14
Filed: 1936-02-24
Abstract: 476,079. Sewing-machines. JACKSON, L. MELLERSH-. (International Button Hole Sewing Machine Co.) Feb. 24, 1936, No. 33334. Divided out of 476,039. Drawings to Specification. [Class 112] The Specification describes the machine for sewing buttons on to work forming the subject of Specification 476,039, and claims a machine for sewing on buttons having means operated in a definite cycle to form a group of stitches of a predetermined number and character, with or without provision for variation of the number of stitches in a group, and stop mechanism, adapted to stop the machine only at the end of a cycle, adjustable to operate after the completion of one or two cycles. Specifications 476,080, 476,081, and 476,082 also are referred to.
Patent GB-504846-A (GB)
Title: Improvements in and relating to liquid purifying apparatus
IPC: F01K25/12
Filed: 1937-12-02
Abstract: 504,846. Purifying mercury. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 2, 1937, No. 33369. Convention date, Dec. 2, 1936. [Class 82 (i)] [Also in Groups I and III] Apparatus' for purifying mercury comprises a closed casing 10 with inlet 11 delivering the liquid under treatment to a receiver 14 whence it overflows on to an annular surface 17 and falls on to impact surfaces 19, 25 which direct part inward to fall on a surface 27 and part outward to fall on a surface 28. The mercury is passed by the surfaces 27, 28 into the space within a shell' 33 in a casing 30. The purified mercury passes under the lower edge of the shell 33 and is discharged over an overflow 40. Impurities collect on the surface of the liquid within the shell 33 and overflow to collect in a trough 42. Gas and some solid impurities separating from the mercury in the casing 10 are withdrawn under suction through a pipe 47. A reducing agent, such as hydrogen, may be supplied through a pipe 50 and shielded apertures 52 in a header 51. As shown in Figs. 2, 3 the surfaces 19 are outward projections on an annular shell 22 and the surfaces 25 are inward projections on a member 20, the parts 25 corresponding in position to the spaces between the projections 19.' Specification 8313/03, [Class 32], is referred to.
Patent GB-176758-A (GB)
Title: Improvements in or relating to the manufacture of wainscots or panelling
IPC: E04F19/06
Filed: 1921-12-12
Abstract: 176,758. H÷rlin, I. M. March 10, 1921, [Convention date]. Panelled work.-Panelling is formed by securing panels 2 to the foundation 1 along their edges and at some distance apart, and applying filling- strips 5 in or above the spaces 7, the strips having flanges 14 extending over the edges of the panels. The securing-means 9 for the strips 5 may be hidden by covering-strips 11, preferably fitting within grooves 10 in the filling-strips 5. The lower part of the filling strips may be of less width than the space between the panels, to allow for expansion, and guide wires may be provided to facilitate correct positioning.