baber/WOPTO huggingface dataset:
Patent GB-623399-A (GB)
Title: Improvements in the manufacture of nitro-dyestuffs
IPC: C09B51/00
Filed: 1946-06-19
Abstract: 2 - Nitro - 4 - sulpho - 41 - alkyl diphenylamines are produced by heating 2-nitro-4-sulphochlorbenzene with a p-alkyl-aniline in an aqueous reaction medium and in the presence of an inorganic basic substance which is substantially insoluble in water.  Specified inorganic bases are magnesium oxide and calcium hydroxide.  The reaction is preferably effected by boiling under reflux at 90 DEG  to 100 DEG  C.  The alkyl group in the p-alkyl aniline preferably contains 1 to 12 carbon atoms and may be, for example, methyl, ethyl, propyl, isopropyl, butyl, amyl, hexyl, decyl or dodecyl.  The products are yellow dyestuffs and may be used for dyeing materials having a basis of an organic derivative of cellulose, e.g. of a cellulose ester such as cellulose acetate, cellulose propionate, cellulose butyrate, cellulose acetate propionate, cellulose acetate butyrate and of cellulose ethers such as ethyl cellulose and benzyl cellulose, also for dyeing nylon and wool.  In an example, 2 - nitro - 4 - sulpho - chlorbenzene and p-toluidine are added to an aqueous suspension of magnesium oxide and the mixture refluxed at 95 DEG  C. with agitation.  After filtering off the suspended magnesium oxide and removing unreacted p-toluidine by steam distillation, sodium chloride is added to the residue and the precipitate which consists of the mixed sodium and magnesium salts of 2-nitro-4-sulpho-41-methyl-diphenylamine is filtered off and washed with sodium chloride solution.  Cellulose acetate materials treated by padding with a solution of 2-nitro-4-sulpho-41-methyl-diphenylamine in a mixture of water and ethyl alcohol are dyed yellow.  The Specification as open to inspection under Sect. 91 refers to heating the reactants in the presence of an inorganic basic substance, e.g. in a liquid reaction medium in which the basic substance is insoluble, or in water containing a basic oxide or hydroxide of a metal.  This subject-matter does not appear in the Specification as accepted.
Patent GB-530473-A (GB)
Title: A fastening device incorporating one or more nuts
IPC: F16B37/04
Filed: 1939-06-24
Abstract: 530,473. Bolting. SIMMONDS, O. E., and SIMMONDS DEVELOPMENT CORPORATION, Ltd. June 24, 1939, No. 18464. [Class 89 (i)] Nuts are attached to a member of a bolted joint difficult of access after assembly by a plate 3, Fig. 1, apertured to pass the bolt and riveted, or spot-welded at 9 to the member. The nut has a flanged base 2 and passes with play through an aperture 6 in a plate 4 connected to the plate 3 by integral lugs 5. A number of plates 4 may be attached at intervals along an extended strip 3. The nuts may be self-locking nuts as described in Specification 228,505, [Class 89 (i)].
Patent GB-477550-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: F16D65/22
Filed: 1936-07-03
Abstract: 477,550. Fluid - pressure brakes. INDIA RUBBER, GUTTA PERCHA, & TELEGRAPH WORKS CO., Ltd., and TARRIS, F. J. July 3, 1936, No. 18532. [Class 103 (i)] In a vehicle brake comprising an inflatable tubular member 17 arranged in a trough 8 and adapted, on being supplied with fluid under pressure, to move friction elements 21 against a co-operating friction surface to produce a braking effect, the friction elements 21 are resiliently supported by springs 23 located transversely within the trough 8 which tend to keep the friction elements away from the co-operating friction surface, and the tube deflated. The ends of the springs are retained in slotted locating blocks 24 along the sides of the trough, which serve to restrain the friction elements from circumferential movement and the central part engages in slots 25 formed in the end edges of the friction elements. Specifications 302,385, [Class 103 (i)], 436,232, and 448,798 are referred to.
Patent GB-134359-A (GB)
Title: Improvements relating to Apparatus for Disintegrating Rags or Cuttings of Woven, Knitted or other Fabrics.
Inventor: FENTON HENRY
IPC: D01G11/04
Filed: 1918-11-13
Abstract: 134,359. Fenton, H. Nov. 13, 1918. Openers.-In a rag-pulling machine, the whole of the air current which carries the fibres away along the conduit 3 is caused to flow through the enclosed space in which the swift 5 and roller 6 are situated. The fan is situated in the passage 3 or in connexion therewith, and all openings to the passage 3, except between the swift and the roller, are closed. One fan may serve several machines, the delivery passages being connected to one common conduit. The rags may be fed from a room above the machines through shoots. and the opened fibres may be transferred by the passage 3 to a receptacle outside the room in which the machines are situated.
Patent GB-146527-A (GB)
Title: Improvements in and relating to grinding machines and the like
IPC: B24B41/04
Filed: 1920-07-05
Abstract: 146,527. Brassill, F. A. Dec. 17, 1917, [Convention date]. Ball and cylindrical journal bearings.-The spindie of a grinding-machine is carried in bearings in two standards 14 between which is placed a driving-pulley 16. At the inner end of each standard is a ball bearing 25, and at the outer end an adjustable split sleeve bearing 36 pressed against a conical seating 34 by an end nut 31. In one standard the seating is formed on a detachable sleeve 42. Each bearing 36 has two pairs of slits 40, Fig. 7, extending alternately from each end nearly to the opposite end. The bearings are closed by packing-rings 23, 33 placed in grooves.
Patent GB-405187-A (GB)
Title: Improvements in sewing machines
IPC: D05B57/14
Filed: 1933-07-03
Abstract: 405,187. Sewing-machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.- (Singer Manufacturing Co. ; Elizabeth, New Jersey, U.S.A.) July 3, 1933, No. 18772. [Class 112.] The invention relates to lock stitch rotary hook sewing machines and provides an unobstructed passage of the needle loop round the bobbin case for high speed operation. The invention is illustrated with respect to a two-bobbin feed-off-the-arm machine. The work arm 1 is closed by a cover plate and a throat plate 4 with feed slots. Co-operating with a pair of vertically reciprocating needles arranged abreast are a pair of vertical axis rotary hooks, each having a cup-shaped hook body, a beak 12 for engaging the needle loop, and a loop-discharging tail 13. A needle guard 14 is secured to the hook body. Each hook body has a bobbin carrier race and the bobbin carriers are retained by the flat member 22. The hooks rotate on vertical spindles driven through bevel gearing by a horizontal shaft. The hooks, as is usual, rotate twice for each complete reciprocation of the needle. The right hand bobbin carrier 21 has a rotation-restraining lug 30 which loosely enters a restraining notch 31 in the under side of the throat plate. The carrier also has a shoulder 32 intermittently engaged by a spring finger 46 carried by the finger 33 which is vibrated to initiate counterclockwise oscillation to the bobbin carrier to open the passage for the needle loop. The other bobbin carrier is provided with a similar opener device for the needle thread loop.
Patent GB-730394-A (GB)
Title: New cationic surface active agents and process for preparing them
Filed: 1952-07-24
Abstract: The invention comprises cationic detergent surface-active agents with bactericidal properties having the formula <FORM:0730394/IV (b)/1> wherein A - is the radical of a strong acid, e.g. a hydrohalogenic, sulphuric or nitric acid, and R is an alkyl radical with a straight-chain of 8 to 16 carbon atoms; and to a process for preparing the salts when R is any alkyl radical by reacting the alkyl ether of 2,4-diaminophenol or its salt with cyanamide in hot solution, the reaction being completed by boiling.  Suitable solvents are ethyl alcohol (for the lower alkyl ethers), and mixtures of ethyl acetate, water and methyl alcohol. Examples describe the preparation of the dihydrochlorides of the n-propyl-, n-butyl-, lauryl-, and cetyl-ethers of 2,4-diguanidine-phenol.
Patent GB-530715-A (GB)
Title: A safety device for bomb fuzes
IPC: F42C15/23
Filed: 1939-06-29
Abstract: 530,715. Bomb fuzes. DUNCAN, W. O. (AktieboLaget Tolfvan Osakeyhtio). June 29, 1939, No. 18931. [Class 9 (i)] A fuze safety device for aerial bombs comprises a tail member 2 which is released by air pressure during flight to pull on a cord 7 connected to a sleeve 10 which retains balls 14 having locking engagement with a groove 13 in the striker 12. The sleeve 10, on rising, releases the balls 14 and the striker 12 can then move forward on impact to fire the bomb. The member 2 is locked by a safety pin 15 which is withdrawn before the release of the bomb.
Patent GB-405189-A (GB)
Title: Improvements in or relating to liquid cooled film gates for kinematograph projectors
IPC: G03B21/16
Filed: 1933-07-04
Abstract: 405,189. Kinematograph projectors. ZEISS IKON AKT.-GES., 72, Schandauerstrasse, Dresden, Germany. July 4, 1933, No. 18983. Convention date, July 14, 1932. Addition to 372,186. [Class 97 (i).] A film gate is formed as a hollow body through which a cooling liquid is passed. As shown, the hollow gate 1 is hinged and the inlet pipe 5 forms the hinge pin ; an outlet pipe 4 is provided.
Patent GB-158288-A (GB)
Title: Process for the production of hydrogen sulphide from sulphurous gases
IPC: C01B17/16
Filed: 1919-07-31
Abstract: The sulphur dioxide and sulphur trioxide contained in gases obtained in the combustion, calcination, and distillation of sulphide ores and other sulphur-containing materials are reduced to sulphuretted hydrogen by a process in which the incandescent carbonaceous zone in which reduction takes place, is maintained at the requisite temperature exclusively by the combustion of the carbonaceous matter with oxygen contained in the gases and added to them, the latter supply being suitably regulated.  The process is continuous, and the necessary hydrogen is derived from the moisture in the reaction gases or added to them, or from the carbonaceous material.
Patent GB-1494892-A (GB)
Title: Reversible air motor
IPC: F01B25/00
Filed: 1975-01-03
Abstract: 1494892 Fluid-pressure servomotor systems AVDEL Ltd 3 Jan 1975 [3 Oct 1973 1 May 1974] 46188/73 and 19028/74 Heading G3P When the torque applied by an air motor 11 exceeds a predetermined value the pressure drop between an inlet 21 and an outlet 25 of the motor displaces a valve 13 to connect ports 39, 42 so that fluid from a supply line 16 for the motor shifts a valve 17 to a position in which a second inlet 22 communicates with the line 16 and the direction of rotation of the motor is reversed. The pressure drop required to displace the valve 13 is set by a spring 33 and a screw 34 and the space 28 within the valve chamber, normally connected to the motor outlet by a passage 38, is isolated from the outlet by a land 29 on the valve before the ports 41, 42 are connected. A manuallyoperable valve (53) Fig. 6 (not shown), may also be provided to apply the supply pressure to the valve 17 and shift the latter to its "reverse" position. In a further embodiment, the pressure drop due to frictional forces in the motor (24) Fig. 8 (not shown), which may be of the sliding- vane type, is prevented from causing undesired operation of the valve 13 by connecting the "reverse" inlet 22 to the space at the right-hand side of the valve 17 to oppose the pressure from the "forward" inlet 21.
Patent GB-258389-A (GB)
Title: Carbureters for internal combustion engines
IPC: F02M23/00
Filed: 1925-07-27
Abstract: 258,389. Collier, W. H. July 27, 1925. Spray carburettors. - The carburettor comprises an inner body portion having a fuel inlet 2 at one end and a main mixing chamber 3 at the other, the latter being screwed into the engine manifold 1 while the end 2 is connected directly to the low-level fuel tank. A casing 8 screw-threaded over the main mixing chamber 3 and adapted to be moved axially by rotation of an arm 18 has coned surfaces 8a, 13 adapted to co-operate with corresponding surfaces 7, 12 on the body portion 2 to form a preliminary mixing chamber 15 which communicates with the main mixing chamber through ports 6. Fuel is delivered to the chamber 15 through radial ducts 4 which may be supplied through a calibrated orifice in a plug 5, and in a modification the calibrated orifice is continued to deliver axially into the chamber 3. The parts 12, 13 control the air inlet to the preliminary chamber and the parts 7, 8a the communication between the preliminary and main mixing chamber and the conicity of these parts in such that a constant depression is produced in chamber 3 whereas the depression in chamber 15 vanes with the engine speed. To effect this, the angles of the parts 12, 7 are such that the ratio of their tangents is as 1 to 3. With the sleeve 8 moved fully to the right and the parts 13, 14 abutting, the air supply is cut off but the ports 6 are fully open and fuel may be supplied for starting. When moved to the position shown in Fig. 6, maximum speed is attained, further movement to the left cutting down the air and mixture supplies. The whole control is effected by the sleeve 8 the arm 18 of which is connected to the usual throttle control lever. In a modification, the sleeve 8 is screwed over the fuel inlet portion 2; the air inlet is adjacent the manifold so that the air may be warmed and the sleeve has an extension beyond the part 13 to co-operate with a. sloping surface to provide an additional air control.
Patent GB-1355261-A (GB)
Title: Needle-loom for weaving pile fabrics
IPC: D03D27/08
Filed: 1971-06-07
Abstract: 1355261 Needle looms for terry fabrics J MULLER 7 June 1971 [9 June 1970] 19202/71 Heading D1E In a needle loom for weaving terry fabrics a selvedge knitting needle 5 is controlled so that as the loose pick is beaten up the hook of the needle moves as far forward as the loose pick is spaced from the fell, and when the fast pick is beaten up, the hook moves as far as the fell. The needle is controlled by an eccentric 16 acting through a toggle linkage 10 which is controlled by a further eccentric 19. A needle like device 21 is provided on the side from which weft loops are inserted, which descends into the weft loop as the loose pick is inserted, and holds its ends until the fast pick is beaten-up. A reciprocating bar 24 on the opposite side pushes the weft loops off the selvedge needle.
Patent GB-192177-A (GB)
Abstract: 192,177. Nyborg, T. G. Oct. 31, 1921. Lighting-torches, non-electric.-In a gas-lighting torch a rod 3 is drawn back by means of a trigger 3<b> against a spring 2 contained in a tubular handle 1 and shot forward when released so that the serrated end 3<a> of the rod is forced across the surface of a flint 6 to produce sparks in the direction in which the lighter is pointing. The flint is kept in position in a transverse guide 4, secured to the front of the tubular extension 1<a>, by means cf a bent wire spring 5 the rear end of which is secured between the handle and the tubular extension. The back end of the handle is formed as a recess for spare flints and is provided with a cap 7.
Patent GB-729228-A (GB)
Title: Improvements in heating and cooling devices for metallic tubes or vessels
IPC: F16L53/70
Filed: 1952-07-30
Abstract: 729,228. Tubular heat-exchange elements. BADISCHE ANILIN- & SODA-FABRIK. July 30, 1952 [Aug. 1, 1951 ; Aug. 10, 1951 ; Aug. 11, 1951], No. 19223/52. Class 64 (3). [Also in Group XXII] A metallic vessel or tube, e.g. for high pressure use, comprises a core tube a, one or more layers. of spirally wrapped-on metallic tape b, and a metallic cooling or heating pipe or half-pipe c spirally wrapped, with pre-stressing, on the core tube itself or on any layer of tape or between any two layers of tape. Pre-stressing is obtained by winding the tape on the core tube when they are hotter than the wound vessel or tube will be in normal use. In the form shown, a layer of heat-resistant steel tape b is wound on an alloy steel tube a, and a half-pipe c is wound on the tape and welded to it. In another form, the half-pipe is directly wound on and welded to the core tube, and several layers of metal tape are wound around the latter outside the half-pipe. The space between the turns of the half-pipe, as well as the space in it, can be used for the conveyance of a heating or cooling fluid. In a modification, the space between the turns is filled with metal or a tape of appropriate shape. The half-tube may be shaped from a metal tape during winding (see Group XXII). When a tube is used, it may be flattened on the side of application to the core tube. More than one layer of pipes or half-pipes may be provided.
Patent GB-810260-A (GB)
Title: Improvements in or relating to the heat-joining of polished surfaces of pieces of glass
Inventor: UPTON LEE OLIVER
IPC: G02C7/06
Filed: 1957-06-18
Abstract: 810,260. Joining glass parts. AMERICAN OPTICAL CO. June 18, 1957, No. 19229/57. Drawings to Specification. Class 56. Before heat-joining the polished surfaces of pieces of glass, particularly the minor and major segments of multi-focal ophthalmic lenses, they are treated so as to prevent the formation of a film of hydrated silica therebetween. The treatment comprises washing the pieces in organically or inorganically contaminated water (at 125‹-136‹F.), directly transferring them to a refrigerator and keeping them at approximately 0‹F. for long enough (e.g. approximately a week) to dehydrate them completely, then immediately dipping them into contaminated water at room temperature to raise them above the dew-point, and then wiping them dry and clean. The fusing of the parts is then effected as soon as possible (not later than 3 to 5 hours).
Patent GB-682813-A (GB)
Title: An ancillary pressure-controlling device
Inventor: BROWN RICHARD E
IPC: F01M13/04
Filed: 1950-08-01
Abstract: 682,813. Crank-chambers. AIR-MAZE CORPORATION. Aug. 1, 1950. No. 19230/50. Class 7 (ii) [Also in Group XXVIII] In an ancillary pressure controlling device for use in connection with the crankcase of a compressor or internal-combustion engine, there is provided a breather pipe 11, extending from the crankcase and forming the sole connection between the crankcase and atmosphere, which has an inner frame member 18 of downwardly opening cup shape adapted to slidingly connect into the upper end thereof, there being arranged an annular series of openings 28 through the frame member 18, a flexible valve disc 29 overlying the openings on the upper face of the frame member and suitable fastening elements, such as nut 34 and bolt 30, securing the centre of the valve to the frame member, the latter being adapted to substantially completely close off the crankcase from atmosphere when the valve closes the openings. The breather pipe 11 is provided with a combined filter and valve unit 10 which comprises a cover 16 within which is the frame member 18 with a series of holes 26 near its upper end. A plate 27 is disposed across the member 18 just below the openings 26 which plate incorporates the openings 28 that are normally covered by the valve disc 29 of rubber-like material. The plate 27 is peripherally supported from the member 18 by welding, the valve clamping nut 34 and bolt 30 passing through and being tightened against the cover 16 by a wing nut 35, the removal of which nut allows removal of the cover 16 for servicing of the wire mesh filter 19 located between the cover 16 and member 18. Bleed holes 37 or 38 may be provided, the former through the valve disc 29 and the latter in the walls of member 18. When a piston moves towards the crankcase a slight air pressure therein acts through holes 28 and lifts valve disc 29, the air passing to atmosphere by openings 26, filter 19 and annular opening 36; the valve closes upon the outstroke of the piston thereby maintaining a slight vacuum in the crankcase. Whilst the apparatus is illustrated as communicating with atmosphere by opening 36 it may also be used when the pipe 11 is connected to a source of suction or alternate pressure and suction through opening 36.
Patent GB-1086586-A (GB)
Title: Improvements in or relating to breathing systems
Inventor: SPIDY ALEXANDER RONALD
IPC: B64D13/04
Filed: 1965-05-06
Abstract: 1,086,586. Respiratory apparatus. WALTER KIDDE CO. Ltd. Aug. 2, 1966 [May 6, 1965], No. 19244/65. Heading A5T. Apparatus for providing breathable gas to the mask or pressure suit of one or more aviators is able to control the amount, pressure, and content of the gas according to the condition of the aviator and the aircraft and comprises a programmed electronic computer 12 able to cause gases from supplies 14-17 to be mixed and controlled for delivery through a valved mixer box 11 and line 18 in accordance with signals from probes 21 monitoring the aircraft's performance and from probes 19 monitoring the aviator's condition. In particular, the probes may measure the lung capacity, .the tidal flow, the heart and pulse beats, the action of the diaphragm, and the blood pressure of the aviator, and the altitude, speed, vibration, acceleration &c., of the aircraft. The gas may be supplied in pulses, the pulsing rate of which is controlled by the computor.
Patent GB-1245665-A (GB)
Title: Improvements in or relating to a method and apparatus for plasticizing particulate material
Inventor: HENDRY JAMES WATSON
IPC: B29C48/03
Filed: 1969-04-15
Abstract: 1,245,665. Injection moulding. BORGWARNER CORP. 15 April, 1969 [1 May, 1968], No. 19274/69. Heading B5A. [Also in Division B1] Material to be plasticized is forced through an annular passageway 48, 53 between a rotor 27 and a housing 16, the rotor having a portion 41 where frictional heat is developed between the rotor and the material and another portion 42 where frictional heat is developed between the housing 16 and the material. Material supplied through an opening 21 (Figs. 1, 2, not shown) is forced to the left in Fig. 3 by a ram (22) or screw operating in an opening 17. The portion 42 of the rotor comprises either one or a series of circumferentially and axially spaced lugs 57, 58, 59 each having an upstanding rib 63 to constrain the material to rotate with the rotor. The portion 42 may be cylindrical or slightly frusto-conical in shape. The plasticized material may be fed to an injection moulding machine through an outlet 38. The rotor also has a bearing portion 43 having ribs 66 and grooves 67.
Patent GB-730975-A (GB)
Title: Improvements in or relating to fishing reels
IPC: A01K89/06
Filed: 1952-07-31
Abstract: 730,975. Fishing-reels. LARTIGUE, R. R. A. A. July 31, 1952, No. 19343/52. Class 48. A fishing-reel of the type which can be moved between a position in which the axis of the reel is parallel to the rod and a position in which the axis of the reel is at right angles to the rod has a rotatable eyelet 33 at one end of the reel axle and a catch 27 or notch near the periphery of the reel. The line passes through the rotatable eyelet and the twists in the line caused by over-end casting are removed by securing the line in the catch 27' and rotating the reel. Specification 645,520 is referred to.
Patent GB-1038254-A (GB)
Title: Improvements in or relating to hydraulic fluids
Inventor: CHADWICK ERIC
Filed: 1964-05-08
Abstract: An hydraulic brake fluid contains a diester of succinic acid of general formula ROOC.CH2.CH2.COOR1 wherein R and R1 represent the same or different groups, said groups being alkyl groups containing 1 to 3 carbon atoms or alkoxy alkyl groups formed by the addition of one or more molecules of ethylene or propylene oxide to methanol or ethanol in admixture with a non-volatile component as hereinbefore defined.  In examples, the esters used are bis-2-methoxyethyl succinate and di-isopropyl succinate; the succinic diester of the monomethyl ether of diethylene glycol is also mentioned.  The non-volatile component may be polypropylene glycol, esters of ricinoleic acid, alkylene oxide derivatives of castor oil, or mono-, di-, tri, or tetra-alkylene glycols and/or their alkyl ethers. Castor oil is included in one example, and 0.5% of diphenylol propane in another.