baber/WOPTO huggingface dataset:
Patent GB-984905-A (GB)
Title: Process for the dyeing and printing of polyacrylonitrile containing synthetic materials, and the materials so dyed
IPC: C09B44/10
Filed: 1963-04-09
Abstract: Perimidinyl-hemicyanine dyestuffs are prepared and used to dye polyacrylonitrile based fibres.  The dyes have the general formula <FORM:0984905/C4-C5/1> in which R1 is a low alkyl radical having 1-4 carbon atoms, R2 is a low alkyl, hydroxyalkyl or an aralkyl radical, R3 is a homocyclic-aromatic radical containing a nucleophilic substituent and which can be further substituted, Q is a para-arylene radical which may be substituted, n has the values 0 or 1 and A is the anion of a strong acid.  The dyes may be produced by condensing 2-methyl-perimidinium salts of general formula <FORM:0984905/C4-C5/2> with aldehydes of formula HCO-(Q-N=N)n-R3 in which R1, R2, A, Q, n and R3 have the meanings as above.  The condensation is performed by boiling in absolute alcohol in the presence of piperidine catalyst or a mixture of piperidine and acetic acid.  The dyes recrystalline from organic solvents or are precipitated from aqueous solutions of strong organic or inorganic acids.  Dyes in which n has the value 1 may be prepared by coupling diazonium compounds of formula <FORM:0984905/C4-C5/3> with compounds of formula H-R3 in which formulae R1, R2, Q, A and R3 have the same value as above.  In the dyestuffs of formula I, R1 is for example, methyl, ethyl, n-propyl or n-butyl, R2 is methyl or ethyl, hydroxyethyl or benzyl.  Q is a para-arylene group and may be substituted by halogen, alkyl or alkoxy groups, and R3 preferably has the nucleophilic substituents in the para position to the ethylene or azo linkage.  R3 is preferably a para-dialkyl-aminophenyl radical which may be substituted by alkyl, alkoxy, hydroxy or halogen substituents.ALSO:Polyacrylonitrile and its copolymers are dyed using a perimidinyl-hemicyanine dye of general formula <FORM:0984905/D1-D2/1> in which R1 is a low alkyl radical having 1-4 carbon atoms, R2 is a low alkyl, hydroxyalkyl or aralkyl radical, R3 is a homocyclic-aromatic radical containing a nucleophilic substituent and which can be further substituted, Q is a para arylene radical which may be substituted, n has the value 0 or 1 and A represents on anion of a strong acid.  The preferred dyes used are those in which n has the value 0.  In hot weakly acid, neutral or weakly alkaline baths the dyes dye polyacrylonitrile based fibre yellow to red shades.  Dyeing is advantageously done at the boil at a pH of 2-9 and the necessary acid is best added at the start of dyeing.  Non ionic wetting and dispersing agents may p  be employed, also carriers and leveling agents may be used.
Patent GB-271885-A (GB)
Title: Improvements in or relating to vacuum electric tube devices
IPC: H01J9/04
Filed: 1927-05-25
Abstract: 271,885. Westinghouse Electric & Manufacturing Co., (Assignees of Rashevsky, N.). May 27, 1926, [Convention date]. Vacuum tubes. - A thermionic cathode of the thoriated type is activated by depositing on it a coating of nickel or similar metal having a low melting point and a low work function. A thoriated tungsten filament 2 may be mounted near a flat nickel anode 3 or inside a cylindrical nickel anode in an exhausted bulb, and the anode heated by current induced from a winding 5 around the bulb, so that nickel is vaporized and deposited on the filament. It is stated that the reduction of the thorium oxide begins at a lower temperature than when nickel is not present. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also a cathode consisting of a core of tungsten or molybdenum, coated with nickel. This subject-matter does not appear in the Specification as accepted.
Patent GB-568108-A (GB)
Title: Arrangement of hydraulic valves
IPC: F16K39/04
Filed: 1943-08-30
Abstract: 568,108. Valves. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Aug. 30, 1943, No. 14114. Convention date, Sept. 10, 1942. [Class 135] A control valve consisting of concentric members 5, 6, with the member 5 connected to the controlled valve 19 and the member 6 operated by a regulator 9 to control the outlets 27 from a channel 20, is provided with auxiliary channels 29 with expanded portions 30 in order to prevent contact between the members 5, 6. The member 6 is suspended from a spring or other system 10.
Patent GB-558510-A (GB)
Title: Improvements to an optical device for checking the alignment of the geometrical axesof two mechanical parts
IPC: B23B49/00
Filed: 1942-10-08
Abstract: 558,510. Optical apparatus. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. Oct. 8, 1942, No. 14158. Convention date, June 27, 1942. [Class 97 (i)] The alignment of the axes of two parts a, b is checked by the provision in one part b of a reference mark 4 on a plate 14 and of one or more objectives 5 producing an image 6 of the mark in the plane passing through the centre of curvature of a concave mirror 7, or the equivalent, carried by the other part b ; the objective 5 produces an image 4<SP>1</SP> of the reflected image 6<SP>1</SP> and magnifies the spacing 6, 6<SP>1</SP>. The spacing 6, 6<SP>1</SP> is twice the separation d of the axes, and may be measured by a scale on the plate 14. Observation is effected by an ocular 3, and the mark 4 is illuminated by a lamp 9, diffuser 10, and reflecting prism 11.
Patent GB-1098296-A (GB)
Title: Improvements in tubulous vapour generators
Inventor: ZOLLER RONALD ERNEST
IPC: F22B21/34
Filed: 1964-04-06
Abstract: 1,098,296. Recirculating combustion gases. BABCOCK & WILCOX Ltd. April 6, 1965 [April 6, 1964], No. 14186/64. Heading F4B. In an upright tube walled vapour generator having a lateral gas pass 2 with heat exchange elements 4, combustion gases are taken from the bottom of the economizer pass 3 and fed to a plenum chamber 9 behind a panel of tubes 7a extending downwardly from the entry to the lateral pass 2. The lower part of the tubes 7a are joined by webs, but at the upper part 8 the webs are omitted so that the recirculated gases pass into the combustion chamber.
Patent GB-752137-A (GB)
Title: Improvements in or relating to television transmitters
IPC: H04N5/16
Filed: 1954-05-14
Abstract: 752,137. Television. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 14, 1954 [May 18, 1953], No. 14191/54. Class 40 (3). In order to remove unwanted components which cause the periodic reference portions 3 of a television signal 4, Fig. 2, to vary in level, the signal is combined with constant amplitude pulses 8, Fig. 4, coinciding with or falling within the periods of the reference portions 3, and the image component is removed by amplitude selection above the level 11. The resulting signal, Fig. 5, is then operated upon to produce a step signal as shown in Fig. 7 in which the levels 29, 30, &c., of the steps are determined by the amplitudes of the individual separated pulses. This step signal is then combined in opposite phase with the original signal and is effective to restore the reference portions to a constant level. The signal of Fig. 7 is produced by a circuit, Fig. 8, in which the separated pulses 8, Fig. 5, are applied to the grid of valve 17 whilst negativegoing pulses 15, Fig. 6, occurring within the portion 3 but terminating at the onsets of pulses 8 are applied to the grid of valve 19. Each pulse 15 cuts off valve 19 and charges a condenser 22 via diode 21 to a constant potential level 28 set by the potential at the cathode of diode 23, whilst each immediately following pulse 8 discharges the condenser through valve 16 to an extent determined by the amplitude of the pulse to produce a potential level 29, 30, &c., which remains until the next pulse 15. It is stated that diode 23 and its associated cathode bias circuit may be dispensed with, and the pulses 15 may in part overlap pulses 8. In an alternative circuit, Fig. 9 (not shown), the equivalent of condenser 22 is discharged by a pentode controlled by pulses 8 as in Fig. 8 but the charging circuit is a normally non-conducting pentode connected in series with the condenser and arranged to be rendered conducting by pulses of reverse polarity to those in Fig. 6.
Patent GB-1029112-A (GB)
Title: Improvements in semi-automatic reversing mechanism for mounted reversible disc plough
Inventor: BROWN RICHARD ARTHUR
IPC: A01B5/14
Filed: 1964-04-07
Abstract: 1,029,112. Reversible disc ploughs. RANSOMES SIMS & JEFFERIES Ltd. March 30, 1965 [April 7, 1964], No. 14278/64. Heading A1B. A reversible disc plough is provided with discs mounted on upright spindles which are rotated to reverse the plough by means of a reversing rod 31 which engages in one end or the other of a cam 32 mounted on arms 15A, the rod 31 being pivoted to a rocker arm 27A to which is connected the upper link A of the tractor three point linkage. As the plough is raised it pivots about the lower links causing the rocker 27A to move and reverse the ploughs. A hand-lever 70 is used to release a catch 46 which engages a pin 57 to hold the discs in one position or the other.
Patent GB-1145359-A (GB)
Title: A depilation process
IPC: C14C1/06
Filed: 1966-03-31
Abstract: 1,145,359. Depilating hides and skins. DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT. March 31, 1966 [April 8, 1965], No.14281/66. Heading C6C. In a process for depilating hides and skins, e.g. cow hides or calf skins, they are treated, e. g. for 15 to 20 hours in a slowly rocking tub, with an acidified, aqueous solution of a chlorite, e. g. a solution containing 300 g. of sodium chlorite per litre, to which solution is added a percompound, and, after hairs and/or bristles have been completely oxidized, a neutral salt, such as ammonium sulphate, or a weakly alkaline salt, such as sodium bicarbonate, is added to the chlorite solution, or applied directly to the oxidized hides or skins, e.g. after the solution has been drained off. The per-compound may be an alkali metal perborate, such as sodium perborate, or hydrogen peroxide, or a hydrogen peroxide addition compound. Twenty-five per cent of an alkali metal perborate, based on the weight of dissolved chlorite may be added to the solution. An organic acid preferably formic or acetic acid, and/or an inorganic acid, e. g. sulphuric or phosphoric acid, may be used to acidify the chlorite solution.
Patent GB-401739-A (GB)
Title: Improvements in or relating to road passenger vehicles
IPC: B62D31/04
Filed: 1932-05-20
Abstract: 401,739. Omnibuses. REEVE, C. W., The Park, Feltham Hill, and ASSOCIATED EQUIPMENT CO., Ltd., Windmill Lane, Southall, both in Middlesex. May 20, 1932, No. 14345. [Class 108 (i).] In a double-deck omnibus the passengers' entrance is located in front of the front axle under the immediate observation of the driver and the foot of the only staircase between the decks is located adjacent to such entrance. As shown the entrance platform 19 which is low extends to the driver's cabin behind which the staircase 17 may be situated as shown in Fig. 6. In a modification the staircase 17 may be located on the near side as shown in Fig. 5, a door 31 dividing the entrance platform from the lower deck being provided ; alternatively a door 30 may be provided at the entrance platform. The motor may be situated on the chassis between the front and rear axles as described in Specification 380,536, [Group XXXI].
Patent GB-253152-A (GB)
Title: Improvements in or relating to wireless telegraphy and telephony
IPC: H04B7/02
Filed: 1926-06-07
Abstract: 253,152. Marconi's Wireless Telegraph Co., Ltd., (Assignees of Peterson, H. O.). June 8, 1925, [Convention date]. Transmitting systems; heterodyne receiving systems.-In order to overcome the effects of fading, static, and other disturbances, the short carrier wave on which the signal is imposed is periodically varied in frequency, and at the receiver is heterodyned with a locally-produced wave having the same periodic frequency variations. The variation in frequency may be of the order of 1 in 3000, and these variations may occur 100 times per second. As shown in Fig. 2, a long-wave oscillator 57 at the transmitter station B has its frequency periodically varied by the rotation of the movable plates, of a small condenser 59 connected in parallel with the main condenser 58. The long wave is amplified and radiated bv the aerial 68 and is also combined with a short wave from the oscillator 44 in the grid circuit of a modulator 48. From the resultant frequencies in the output circuit 51, the sum frequency is selected and radiated by the aerial 52. The shorter radiated wave is broken up by a signal key 45 or modulated by a microphone in any usual way. At the receiving station C the shorter wave with its periodic frequency variations is picked up by the tuned aerial 20, and transferred to the detector valve 23. The longer wave with its periodic frequency variations is picked up by a second tuned aerial 27 and is combined in the modulator 36 with a local short wave of a steady frequency differing from that of the source 44. The resulting sum frequency is selected at 37 and passed into the grid circuit of the valve 23. The two inputs to this valve thus bear synchronous frequency variations,. and their difference is a steady frequency to which the output circuit 25 is tuned. This steady frequency is interrupted or modulated according to the signals imposed by the key 45 or equivalent microphone. In a modification shown in Fig. 1, the long wave with its periodic frequency variations is generated at a separate station A and is radiated to the transmitter station D where it is picked up by the aerial 11. From this long wave a short wave is generated by an harmonic-producer or frequency-multiplier 14 and is radiated from the aerial 18. At the. receiving station C, one aerial 27 picks up the long wave, and a second aerial 20 the short wave. The long wave is multiplied in frequency by an apparatus 31 similar to that at the station D and is then combined in the valve 36 with a steady frequency from a local source 35. The output of the valve 36 is combined in the valve 23 with the short wave received on the aerial 20, and from the output a wave of the steady difference frequency is selected by the tuned circuit 71, and passed to the detector 40. For multiple working, a single long-wave source may be used for imposing its frequency variations on a number of short-wave channels.
Patent GB-496040-A (GB)
Title: Improvements in or relating to the pneumatic separation of materials of different specific gravities
IPC: B03B4/00
Filed: 1937-05-21
Abstract: 496,040. Separating solid materials. RIDLEY, F. F., and COLLIERY ENGINEERING, Ltd. May 21, 1937, No. 14380/36. [Class 117] A pneumatic separator having a pervious table disposed above an air box with a perforated portion for discharge of the lower layer of material at the forward end of a stratification zone has a discharge box for receiving material from the perforated portion and discharging it through an adjustable outlet into the air box, the material in the discharge box being subject to continuous pneumatic pressure. In the form shown, the lower layer of material passes through apertures at the forward end of each of the zones A, B, C into discharge boxes 3 where it is subjected to compressed air supplied through pipes 20 and then passes into the discharge box through adjustable outlets 4, 5. Deflectors 13 on a skimmer 14 deflect one class of material, e.g. clean coal into side troughs. The table may be suspended on hangers at the corners and be given a small throw at high frequency by an eccentric and connecting rod and dust hooding may be provided over the table. There may be two or more tables side-by-side. Specifications 274,587, 297,757, 305,068, [all in Class 117], and 392,578 are referred to.
Patent GB-587670-A (GB)
Title: Improvements in or relating to weft stop and brake mechanism for looms
IPC: D03D51/34
Filed: 1943-09-03
Abstract: 587,670. Loom stop-motions. SMITH, F. L., and SHACKLETON, G. W. Sept. 3, 1943, No. 14390. [Class 142 (i)] A weft stop motion for looms operable either manually or by a weft feeler has the starting handle 16 held in the driving position by a starting handle release catch 10 engaged by a lever 10x fixed on a spindle 9 to which also is fixed a lever 14 controlling, through a vertical rod 13, a brake lever release catch 7. When weft is absent a. tongue 15 is raised to rock the levers 10x and 14 to release the starting handle 16 and the catch 7. A brake lever 6 falls to apply brake shoes 1 to a flywheel 2 upon release of the supporting catch 7. The starting handle 16 is not connected to the brake lever 6 and to restart the loom the lever 6 is raised by a handle lever 17 and the handle 16 set separately. The handle. 16 may carry a projection to move the lever 17 so that it does not support the brake lever 6 in the weaving position.
Patent GB-311407-A (GB)
Title: Process of improving the impermeability of oils for painting and like purposes
IPC: C09D7/61
Filed: 1929-05-08
Abstract: 311,407. Goldschmidt Akt.-Ges., T. May 12, 1928, [Convention date]. Drying oils.-Oils for painting purposes are treated with basic lead compounds such as litharge, red lead, white lead &c. in quantities of over 2 per cent of the oil. The coating of an iron sheet with linseed oil containing 8.2 per cent of lead is specified. Reference has been directed by the Comptroller to Specifications 8095/95, 7128/97 and 11917/15, [all in Class 95, Paints &c.].
Patent GB-1407750-A (GB)
Title: Table assembly
IPC: A47B31/06
Filed: 1973-03-27
Abstract: 1407750 Wall tables G SAMUYLLO 27 March 1973 [4 April 1972] 14570/73 Heading A4B A wall table T is supported at one end by at least one leg R with a ground roller and at the other end carries a pair of U-shaped fastenings 2 slidably engaged on a wall rail 1 to facilitate a user's access to a seat B, and includes a pivoted bolt 12 carried by a wall bracket 15 and movable to and from a position in which its end 19 engages a notch 14 in the table T to prevent its displacement along the length of the rail 1. The bolt 12 is biased by a spring 17 into engagement with the notch 14. Each U-shaped fastening 2 includes an integral plate 4 secured to the table T and having a recess 5 housing a tongue 6 which is slidable between positions in which it respectively closes and opens the mouth of the U-shaped fastening 2. A projection 7 on the plate 4 snaps into one or other of two holes 9 in the tongue 6 in the two positions.
Patent GB-739292-A (GB)
Title: Improvements in drawing or extruding dies
Inventor: HAMPTON RONALD
IPC: B21C25/02
Filed: 1953-05-26
Abstract: 739,292. Drawing-dies; extruding. PATENTS & INVESTMENTS, Ltd. May 12, 1954 [May 26, 1953], No. 14585/53. Class 83 (4). The lead-in surface 13 of a drawing or extruding die 10 are curved convexly in both the longitudinal and transverse section. In a die of hexagonal section 12 the material is caused to flow laterally towards the corners.
Patent GB-960150-A (GB)
Title: Improvements in or relating to apparatus for sizing warp threads
Inventor: HAUF RICHARD
IPC: D06B1/02
Filed: 1963-04-11
Abstract: 960,150. Thread sizing apparatus. INSTITUT FUR TEXTILMASCHINEN. April 11, 1963, No. 14600/63. Heading D1L. Apparatus for sizing threads comprises a size box 1 having a stripper disposed at the outlet side formed by two elastic, porous bars, one 10 of which is fixedly mounted while the other 11 rests loosely thereon, a further elastic and porous bar 12 fixedly mounted before the bar 10 in the direction of travel of the thread, the bars 10 and 12 together with a separate floor 4 and the side walls of the box forming a separate size damming chamber 17 having an outlet aperture 16, a size spray device 13 provided above the bar 12, the delivery power of the spray device 13 being greater than the discharge capacity of the outlet aperture. Preferably the upper sides of the bars 10 and 12 are flat and lie in a common horizontal plane and a comb 8 is associated with the box at the outlet side and a water-air or steam spray device 14 is associated with the comb. In use a warp 6 consisting of individual threads drawn from a reel (not shown) is fed by guide rollers 9 via a comb 7 so that the threads pass over the bar 12 where they are sprayed with size, through size in the chamber 17, between bars 10 and 11 and thence through comb 8, the jet from tube 14 preventing sizing liquid from being deposited on the needles of comb 8.
Patent GB-434526-A (GB)
Title: Apparatus for cleaning carpets, garments or other textile articles
IPC: D06G1/00
Filed: 1935-05-18
Abstract: 434,526. Beating carpets &c. HAMMARLING, H., 6, Humlegardsgatan, Stockholm. May 18, 1935, No. 14612. [Class 138 (i)] Apparatus for beating carpets, garments, or other textile articles comprises one or more rods 3 each having parallel movement through an aperture formed in the top wall 2 of a casing 1, the wall supporting the article to be cleaned. The rod 3 is carried by two arms 4 to which oscillatory movement is imparted by cams 12 and return springs 10. The top wall 2 is inclined to the horizontal as shown, and in order that the inclination may be varied, the casing 1 is pivotally mounted at 17 and means are provided for maintaining the casing at the desired inclination. The casing is inclined to an extent depending upon the article being cleaned so that the beating action of the rods 3 feeds the article gradually along the top wall 2. A tub 15 at the top of the casing serves to receive a rod by means of which a carpet of great width may be supported.
Patent GB-673282-A (GB)
Title: Improvements in loom harness
Inventor: KAUFMANN JOHN JACOB
IPC: D03C9/06
Filed: 1950-06-12
Abstract: 673,282. Heald frames. STEEL HEDDLE MANUFACTURING CO. June 12, 1950, No. 14662/50. Class 142(i) A heald frame has top and bottom rails of extruded hollow section of a lightweight metal alloy - of aluminium or magnesium and side struts each comprising a wooden member with flat metal plates on its inside and outside faces, the metal plates being bent over and secured to the top and bottom rails. The top rail 10 has recesses 18, 20 to accommodate the bent-over ends 17, 19 of the metal plates 15, 16 which are bolted to the rail. Blocks 24 are fitted into the hollow ends of the rails and each block has a tenon portion which engages a mortise in the adjacent end of the side strut 14. The side struts may be thicker than the top and bottom rails to provide bearing surfaces when the frames are moved up and down.
Patent GB-556211-A (GB)
Title: Improvements in or relating to devices of the kind comprising a discharge tube in which the electrons are concentrated in a beam and traverse a velocity control space
IPC: H01J25/16
Filed: 1941-11-17
Abstract: 556,211. Velocity-modulated tubes. PHILIPS LAMPS, Ltd. (Naamlooze Venootschap Philips' Gloeilampenfabrieken). Nov. 17, 1941, No. 14787. Drawings to Specification. [Class 39 (i)] The subject-matter is identical with that of Specification 599,902.
Patent GB-449836-A (GB)
Title: An improved dental brush
IPC: A46B9/04
Filed: 1935-05-22
Abstract: 449,836. Toothbrushes. RICHARDS, S. A., 6, Barlow Street, and THOMSON, J. S. M., Millen, Barlow Street, Clayfield, Brisbane, Queensland, Australia. May 22, 1935, No. 14881. Convention date, March 25. [Class 19] A toothbrush has opposed bristles B, C, the outer ends of which nearly abut and the inner ends of which are mounted in a U-shaped voke A with bristles G mounted on the outside of the arch. A further set of bristles F may or may not be added within the arch and another set E may be added at the other end of the handle.
Patent GB-708734-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K1/10
Filed: 1951-06-22
Abstract: 708,734. Commutating poles. GENERAL ELECTRIC CO., Ltd., and LEDGER, R. June 16, 1952 [June 22, 1951], No. 14907/51. Class 35 An interpole 1 is secured to a machine frame 2 by a bolt 3 of magnetic material, both the interpole and securing bolt being. separated from the frame by members of non-magnetic material. A brass washer 12 separates the interpole from the frame, and a brass bush 9 separates the bolt from the frame.