baber/WOPTO huggingface dataset:
Patent GB-617580-A (GB)
Title: Hair curler
IPC: A45D2/20
Filed: 1946-10-07
Abstract: 617,580. Hair curlers. RUST, H. Oct. 7, 1946, No. 29937. Convention date, Nov. 5, 1945. [Class 131] . A hair curler comprises a ring body 1 of rubber-like resilient material on which hair may be curled by repeatedly rolling the ring body about its annular axis after the free end of the tress has been secured to the body by a clamp 2, 3. In a modification the clamp comprises a clip secured to an unbroken ring body.
Patent GB-748848-A (GB)
Title: Blasting devices
Inventor: SMITH KENNETH ASHBROOKE
IPC: F42B3/06
Filed: 1953-11-02
Abstract: 748.848. Blasting cartridges. IMPERIAL CHEMICAL INDUSTRIES, Ltd July 5, 1954 [Nov. 2, 1953], No. 30193/53. Class 9(1) Fluid-pressure blasting cartridge comprises a high tensile steel container 1 with a venting head 2 separated from the charge chamber by a mild steel disc 3 placed between gaskets 4, 5. Attached to the firing head 6 is a flexible tube 7 through which gas is admitted to a conduit 9 closed by a ball valve 10 forming, with a sleeve 11, a non-return valve. The gas-producing charge 14 confined in a fireproofed cardboard container may be an ammonium nitrate composition as disclosed in Specifications 724,060 or 744,845 [Group III] and encloses a heating element 15. The element 15 comprises a metal casing 16 containing a heating charge 17, reaction of which is initiated by a percussion cap 19 when hit by a metal striker 20. A metal band 22 crimped around a rubber tube 21 holds the striker in position at the end of the casing 16 until compressed gas, admitted through the conduit 9, drives the striker on to the percussion cap. The gas used to operate the striker may be compressed air, carbon dioxide or nitrogen. Specification 745,160 also is referred to.
Patent GB-845672-A (GB)
Title: Production of low molecular weight homopolymers
Inventor: WHITBY FRANCIS JOHN
IPC: C08F2/36
Filed: 1957-09-26
Abstract: A vinyl monomer is polymerized in bulk in the presence of sufficient modifier for the initially formed polymer to possess a molecular weight not greater then 30,000 and further modifier is added during polymerization so that the same low molecular weight is maintained. Monomers specified are styrene, vinyl xylenes, isobutylene, alkyl vinyl ethers, acrylonitrile, acrylic acid, and acrylate esters.  The modifiers disclosed are thuram disulphide, xanthic disulphide, mercaptans, thioglycollic acid esters, thioglycollic acid, amines, Schiff's bases, nitro compounds, hydrazines, diazoamino compounds, sulphur, selenium, phosphine, and haloalkanes such as carbon tetrachloride.  In an example styrene is polymerized in two stages in the presence of thioglycollic acid and using di-t-butyl peroxide as catalyst.  The products find application as oil additives.
Patent GB-1475351-A (GB)
Title: Machines for handling tubes
IPC: C03B35/26
Filed: 1974-07-09
Abstract: 1475351 Handling glass tubes CHARMOIS ETABS 9 July 1974 [10 July 1973] 30304/74 Heading ClM In a machine for performing operations on glass tubes at a plurality of stations, the tubes are supported on idler rollers 1 while located at a station and transferred between stations using two or more forks 33, 36, 37 which are linked by a tie 35 and mounted for movement in a circular path coaxial with the roller 1. Each station is further provided with a driven roller 5 for rotating the glass tube, which roller is movable into and out of engagement with the tube.
Patent GB-882468-A (GB)
Title: An improved apparatus for opening or closing doors and the like
IPC: E05F15/04
Filed: 1958-09-23
Abstract: 882,468. Door operating appliances. EMERY, A. A. Sept. 23, 1958 [Sept. 26, 1957], No. 30316/58. Class 65(1). A door, especially a vertically sliding folding garage door, is operated by a hydraulic ram or jack 1 from which extends a pair of cables 14 secured commonly at 13 to the end of the ram piston and separately to the vertical side edges of, as shown, the lower folding panel 4b of the door. The upper panel 4a is pivoted at 22 in the door frame and the lower panel slides in guides 20, bent backwardly at 20a so that the door lies beneath the pivots 22 when shut. The ram is controlled by compressed air, which forces fluid through a pipe 10 and which is afterwards released to atmosphere, and the area between the piston and cylinder in cross-section is the same as that of the pipe 10 so that if the piston rings become worn the door will shut at the same speed as normal.
Patent GB-962153-A (GB)
Title: Mechanical actuating mechanism
Inventor: DAVIS JOHN WALTER
IPC: F16D65/56
Filed: 1959-09-05
Abstract: 962,153. Disc brakes; gearing. GIRLING Ltd. Oct. 5, 1960 [Sept. 5, 1959], No. 30397/59. Headings F2E and F2Q. A disc brake of the caliper type comprises mechanical actuating mechanism which causes friction pads 16 and 19 to be applied to a disc 10 with an increasing mechanical advantage as the resistance to movement of the pads increases. A spindle 23, rotatable by brake applying means, has, screw threaded on an integral spigot 24, a block 27 which advances when the spindle 23 is rotated, to force, by means of balls 35, a second block 31 to apply a pad 19 to grip the disc 10 against a fixed pad 19. A pawl 34 prevents rotation of block 31 and block 27 during this motion, but as the pressure of the pads increases, the block 27 rotates with the spigot 24, causing the balls 35 to ride up tapering recesses 36 in block 27 to increase the mechanical advantage. On release of the brake, the block 27 rotates with the spindle 23 due to one or more pawls 29 on a sleeve 26 of the spindle engaging in teeth in block 27. When the balls have returned to their normal positions both blocks rotate together. This provides automatic wear adjustment. The blocks are urged towards each other by springs 37.
Patent GB-881990-A (GB)
Title: Improvements in the treatment of hardboard
IPC: D21J1/08
Filed: 1958-09-24
Abstract: Hardboard is rendered substantially nonporous by applying an inert filler and a hardenable organic liquid to the surface of the board, and intensively mechanically working them into the pores in the surface, the fineness of the particles of the filler being such that they can enter the pores, having preferably diameters of from 1 to 10 microns.  The filler may be a pigment such as titanium dioxide or chalk, or china clay, feldspar, aluminium powder or quartz, and the hardenable organic liquid may be, e.g. linseed oil, tall oil, modified tall oil, Chinese wood-oil, soya bean oil, stand oil, alkyds, styrene, vinyl toluene or lacquers such as cellulose acetate or nitrocellulose.  The filler and the liquid may be applied separately or in admixture, and may be worked into the surface by rotary brushes.  The board may then be subjected to heat treatment, which may take place between the pressing and hardening steps in the production of the board.  The treated board may be painted.
Patent GB-771561-A (GB)
Title: A new or improved joint-making packing
Inventor: WATSON THOMAS FRANK
IPC: F16J15/12
Filed: 1953-11-05
Abstract: 771,561. Joint-making packing. WALKER & CO., Ltd., J. Oct. 26, 1954 [Nov. 5, 1953], No. 30601/53. Class 122 (3). A joint-making packing comprises a core 1 enclosed by a barrier 3 composed of one or more layers of thin metal or other material impervious to liquids and surrounded by an outer cover 4, the barrier 3 serving to prevent seepage of the sealed liquid through the core. The core may be of jute, hemp, asbestos, nylon or other plastic, or synthetic or natural rubber in solid or sponge form; the barrier may be of white metal, alloy or plastic; and the outer cover, which is preferably substantially less thick than the core, may be a textile such as cloth or braided or plated jute, hemp, asbestos, soft metal or a plastic. The packing shown is particularly suitable for sealing the tank lids 6 of sea-going tankers and comprises a core 1 of plaited jute yarn surrounding an inner rope core 2 and enclosed by white metal tape 3 wound spirally around it so that each turn overlaps the next by about 50 per cent, the tape being enclosed by a wrapping 4 of one or more layers of suitable material, for example, plaited jute or asbestos. If desired, two layers of white metal spirally wound in opposite directions may be used or the barrier may be applied as a sheet.
Patent GB-874548-A (GB)
Title: Removal of a metal halide from a gaseous mixture containing the same
IPC: C22B34/12
Filed: 1957-10-01
Abstract: <PICT:0874548/III/1> Metal halides which are solid at room temperature, for example iron chloride or zirconium tetrachloride, are separated from gas-solid mixtures containing them by introducing the mixture into a relatively large walled space through which it flows in non-turbulent flow at such a rate that the solid metal halide component settles out, wherein the mean temperature of the inner walls of the space is maintained at approximately the arithmetic mean of the gas inlet and outlet temperatures, the gas inlet and gas outlet temperatures being above that at which any substantial condensation of the gaseous component of the mixture occurs, and the gaseous component, for example titanium tetrachloride, is then removed, substantially free from the solid halide.  The gas-solid mixture to be separated may be obtained by passing a gaseous mixture through an elongated zone having walls which diminish in heat transmitting resistance in the direction the mixture flows, for example by the walls diminishing in thickness, whereby the mixture is gradually cooled to the point where the normally solid halide is present in the mixture in the solid state. In Fig. 1, ilmenite is chlorinated in a shaft furnace 1, to give a gaseous mixture of ferric and titanium chlorides, and this mixture passes to the uppermost portion of a condenser 3 which consists of a tapered brick lining 4 surrounded by a metal shell 5, such that its external walls have a substantially constant temperature, thereby achieving a constant rate of cooling of the mixture.  The gas-solids mixture issuing from the bottom of the condenser 3 enters a settling box 6, through which the mixture passes in non-turbulent flow and the solid ferric chloride, which settles out, may be withdrawn by screw 7 to storage 11.  The issuing titanium tetrachloride vapour passes to a spray cooler 12, fed by liquid titanium tetrachloride from tank 13, and is there condensed.  To prevent eddy currents in the box 6, chains or other hanging obstructions may be employed.  The apparatus may be jacketed to enable the heat losses to be more effectively controlled, for example by the passage of steam or water. Preferably the residence time in the settling box is so adjusted that the separated ferric chloride particles have a size of at least 10 microns.
Patent GB-214563-A (GB)
Title: Improvements in electrical contact devices
IPC: H01R4/24
Filed: 1923-12-05
Abstract: 214,563. Alexander, C. O., Johnson, C. B., and Simpson, T. W. Dec. 5, 1923. Needle-point couplings. - A needle-point B eccentrically mounted in a part A makes contact on adjustment with different parts of a scft metal block F. The contacts are fitted in a container.
Patent GB-493339-A (GB)
Title: Manufacture of aromatic amino-compounds
Filed: 1937-04-05
Abstract: Amines are obtained by the reduction of nitrophenols (or their ethers) substituted in the nucleus by one or more aliphatic hydrocarbon radicles containing in all more than seven carbon atoms, at least one aliphatic radicle having more than three carbon atoms; the nitrophenols or their ethers may contain additional substituents such as carboxylic groups.  Specified starting materials are the nitro derivatives of isooctylphenols, p-(a , a , g , g -tetramethylbutyl) phenol, isodecyl-o-cresols, diisobutyl-phenols, isononylanisoles and isooctylsalicylic acids; nitro derivatives of corresponding polynuclear compounds; e.g. of isooctyl-a -naphthols, may also be used.  Reduction may be effected with hydrogen in the presence of a hydrogenation catalyst.  In the examples: (1) p - isooctyl - o - nitroanisole is treated in alcohol with hydrogen at 40-50 DEG  C. and 80-90 atm. pressure in the presence of a nickel catalyst; (2) p-isooctyl-o, o1-dinitroanisole containing a subordinate proportion of mononitro compound is reduced as described in example 1; the products may be separated by fractional distillation; (3) mononitroisooctylphenol is reduced as described in example 1.ALSO:Amines are obtained by the reduction of nitrophenols (or their ethers) substituted in the nucleus by one or more aliphatic hydrocarbon radicles containing in all more than seven carbon atoms, at least one aliphatic radicle having more than three carbon atoms; the nitrophenols or their ethers may contain additional substituents, such as carboxylic groups.  Specified starting materials are the nitro derivatives of isooctylphenols, p-(a , a , g , g -tetramethylbutyl)phenol, isodecyl-o-cresols, diisobutylphenols, isononylanisoles, and isooctylsalicylic acids; nitro derivatives of corresponding polynuclear compounds, e.g. of isooctyl-a -naphthols, may also be used; the preparation of such starting materials is described in Specification 493,294. Reduction may be effected with hydrogen in the presence of a hydrogenation catalyst, or by means of tin or iron and hydrochloric acid.  In the examples: (1) p - isooctyl-o-nitroanisole is treated in alcohol with hydrogen at 40-50 DEG  C. and 80-90 atm. pressure in the presence of a nickel catalyst; (2) p-isooctyl-o, o1-dinitroanisole containing a subordinate proportion of mononitro compound is reduced as in example 1; the products may be separated by fractional distillation; (3) mononitroisooctylphenol is reduced as described in example 1, or with tin and hydrochloric acid.
Patent GB-1314755-A (GB)
Title: Process for the preparation of 3-difluoro-chloro-methyl aniline
IPC: C07C/
Filed: 1971-06-30
Abstract: 1314755 Difluorochloromethylaniline FARBWERKE HOECHST AG 30 June 1971 [1 July 1970] 30689/71 Heading C2C A process for the preparation of 3-difluorochloro-methyl aniline or its hydrochloride comprises catalytically reducing 3-nitro-difluorochloromethyl benzene with hydrogen in an inert non-basic water-miscible solvent in the presence of at least one mole of hydrogen chloride per mol of nitro compound and a precious metal of the VIIIth Group of the Periodic Table or its oxide as catalyst and optionally converting the 3 - difluorochloromethyl aniline hydrochloride thus obtained into the free base. Examples are furnished.
Patent GB-1286755-A (GB)
Title: Process for preparing polyethylene terephthalate
IPC: C08G63/00
Filed: 1970-06-24
Abstract: 1286755 Polyethylene terephthalate M & T CHEMICALS Inc 24 June 1970 [24 June 1969] 30712/70 Heading C3R In the manufacture of polyethylene terephthalate from terephthalic acid or its dimethyl ester and ethylene glycol, there is used as a polycondensation catalyst, a sulphurcontaining organoantimony compound of formula (R 2 Sb) 2 S; RaSb(SR) 3-a ; R a Sb(OR<SP>1</SP>SH) 3-a  RaSb(OOCR<SP>1</SP>SH) 3-a ; or wherein R and R<SP>1</SP> are hydrocarbon radicals which may be inert by substituted, R<SP>11</SP> is a hydrocarbon radical which may be inertly substituted or a hydrogen atom and a is 1, 2 or zero. In the examples polyethylene terephthalate is prepared using antimony-5,5<SP>1</SP>,5<SP>11</SP>-thiophenate, antimony-S,S<SP>1</SP>,S<SP>11</SP>-thiobenzoate, antimony tris-isooctylmercaptoacetate and antimony tris-N,N-diethyldithiocarbamate as polycondensation catalysts.
Patent GB-511178-A (GB)
Title: Improvements in and relating to rheostats and potentiometers
IPC: H01C10/32
Filed: 1937-11-09
Abstract: 511,178. Variable resistances. INTERNATIONAL RESISTANCE CO. Nov. 9, 1937, No. 30786. Convention date, Jan. 7. [Class 37] A variable resistance or potentiometer particularly for use as a volume control comprises an insulating support 43 with inner portions 46, 47, and a narrow annular coating 80, e.g. one-eighth of an inch wide, of resistance ink, points on which are connected by ribbons 50-51 of highly conductive coating material to rivets 41, 40, situated in the portions 46, 47, of the support within the resistance ring 80. These rivets secure and make contact with terminals 26, 25. The sliding contact is formed with a number of individual contact arms 61, Fig. 6, for example of phosphor bronze wire, having a smooth unbroken surface at the point 61a at which they engage the resistance strip. These wires are clamped at one end by a strap 59b on a rotable arm 39 and are free to move vertically at their other ends. The ends of the resistance strip are of high and low potential and are connected to terminals 27, 28, respectively. The sliding contact is connected to a third terminal 29 by means of a coil 58 of spring wire having a substantial number of turns. Riveted to the centre terminal 28 is a member 38 which is bent down at one end 38a so as to make contact with the low potential end of the resistance strip. The member 38 has also a raised portion 38c which extends over the head of the rivet 36 that secures the terminal 27 to the high potential end of the resistance, as to serve as an electrostatic shield between this and the sliding contact. Specifications 431,597 and 512,650 are referred to
Patent GB-1400100-A (GB)
Title: Scrap material baling press
IPC: B30B1/16
Filed: 1973-06-28
Abstract: 1400100 Scrap consolidating presses Y LEFORT 28 June 1973 [13 April 1973] 30841/73 Heading B3H  A scrap consolidating press has at least one of its jaws 2, 3 operated by a piston-cylinder unit 4, 104 pivotally mounted at 5, 105 to the press frame 1 and connected to the jaw by a toggle linkage 8, 9, 108, 109. The lower link 8, 108 of each toggle is pivoted to the frame whilst the upper link 9, 109 is pivoted to the respective jaw. In the open position of the jaws the angle α is approximately 45 degrees and bisected by the ram axes A-A, D-D. In the closed position the toggle pivots 7, 10, 11 and 107, 110, 111 of each linkage are in alignment. The jaws are operated successively.
Patent GB-1447054-A (GB)
Title: 2-n-alkyl-2-imidazolinyl-phenyl ketones
IPC: C07D233/22
Filed: 1973-06-28
Abstract: 1447054 2 - (N - Alkyl - 2 - imidazolinyl)- phenyl ketones and their pharmaceutical compositions AMERICAN HOME PRODUCTS CORP 25 Sept 1974 [28 June 1973] 30878/73 Heading C2C The invention comprises compounds of Formula (I): or a pharmaceutically acceptable salt thereof wherein R is a C 1-4  alkyl group; R 1  is a phenyl, monohalophenyl, dihalophenyl, mono-(C 1-4 - alkyl) phenyl, di-(C 1-4  alkyl) phenyl, trifluoromethylphenyl, mono-(C 1-4  alkoxy) phenyl, di- (C 1-6  alkoxy) phenyl, thienyl, pyridyl, furyl or 5,6,7,8 - tetrahydro - 2 - naphthyl group; R 2  is hydrogen or halogen or an amino, C 1-4  alkylamino, C 1-4  alkyl or C 1-6  alkoxy group; R 3  is hydrogen when R 2  and R 3  are dissimilar and when R 2  and R 3  are the same they are both hydrogen, halogen, C 1-4  alkyl or C 1-6  alkoxy groups; R 4  and R 5  are the same and are both hydrogen or C 1-4  alkyl or R 4  is hydrogen and R 5  is C 1-4  alkyl; R 6  is hydrogen, C 1-4  alkyl or methoxymethyl which may be prepared by reacting a compound of Formula (II): wherein R, R 1 , R 2 , R 3 , R 4 , R 5  and R 6  are as defined above and R 7  is a C 1-4  alkylsulphonyl, phenylsulphonyl, monohalophenylsulphonyl, dihaolphenylsulphonyl, mono-(C 1-4  alkyl) phenylsulphonyl, di - (C 1-4  alkyl) phenylsulphonyl or C 1-6  alkoxyphenylsulphonyl group with 90- 100% sulphuric acid and, if desired, converting the produced acid addition salt of a compound of Formula I to the free base or converting the produced free base to an acid addition salt form. The products may be obtained in optically active forms either by separation of enantiomer or by using optically active starting materials. Compounds of Formula II wherein R 7  is a p-toluene sulphonyl group are prepared by reaction of a compound of Formula III: with a compound of Formula V: wherein R, R 1 , R 2 , R 3 , R 4 , R 5 , R 6  and R 7  are as defined above. N - [2 - (Isopropylamino)ethyl]- p - toluenesulphonamide and N - [2 - (ethylamino)ethyl]- p-toluenesulphonamide are prepared by reaction of tosyl chloride with, respectively, N-isopropyl or N-ethylethylene diamine. N - [2 - Amino - 2,2 - dimethyl - ethyl] - ptoluenesulphonamide is prepared by reaction of tosylchloride with 2-methyl-1,2-diaminopropane and is reacted with acetyl chloride to obtain N - [2 - acetamido - 2,2 - dimethyl - ethyl] - ptoluene-sulphonamide which is in turn reduced with LiAlH 4  to obtain N-[2-(ethylamino)-2,2- -dimethyl-ethyl]-p-toluene sulphenamide. The # acid chloride of o (p-fluorobenzoyl) benzoic acid is prepared by reaction of o-(pfluorobenzoyl) benzoic acid with thionyl chloride. Tosyl - DL - alanine ethylamide is prepared by reaction of tosyl-DL-alanylchloride with ethylamine and is reduced with lithium aluminium hydride to obtain N-[2-(ethylamino-1- methyl)ethyl]-p-toluenesulphonamide. Pharmaceutical compositions having hypoglycemic, antireserpine, antiuleerogenic and antiarrhythmic activity comprise a compound of Formula I or a pharmaceutically acceptable acid addition salt thereof and a pharmaceutically acceptable carrier.
Patent GB-1472066-A (GB)
Title: Photoelectric apparatus
IPC: G05G9/047
Filed: 1974-06-26
Abstract: 1472066 Photo-electric position control BRITISH AIRCRAFT CORP Ltd 26 June 1974 [28 June 1973 10 July 1973] 30931/73 and 32913/73 Heading H4D The Specification describes several embodiments of an apparatus which produces output signals from an arrangement of photo-cells 11, 61, mounted within a box 1, 51, which signals are dependent on the position, in orthogonal co-ordinates, of a joystick 4, 56, which in the embodiment of Fig. 1 is supported by a rubber diaphragm 3, and is provided with a light source, by transmitting light from a light emitting diode (L.E.D.) 7 through optical fibre bundle 8, which light emerges on the bottom of the joystick, and impinges on a quadrant arrangement of photo-cells 11. In another embodiment (Fig. 2, not shown) the joystick is mounted more rigidly on a thick rubber diaphragm (18) and is moved, and the light beam thereby deflected by pressure on a button (22). In a further embodiment, Fig. 3, the joystick 56 is pivotally mounted at 57 on a gimbal 52 which in turn is pivotally mounted on a box 51 on an axis 55 orthogonal to axis 57. The end 64 of joystick 56 is polished and reflects light from L.E.D. 63 on to an elongate array of photo-cells 62 in accordance with the joystick position on axis 57. The support member 52 similarly reflects light from diode 68 on to detector array 66 arranged orthogonally to array 62 and providing signals indicative of the joystick position on axis 55. In a fourth embodiment (Fig. 4, not shown), the joystick (75) is mounted on a similar gimbal support, but so arranged that light from diodes (83, 84) passes through an optical grating, arranged to produce moirÚ fringes in accordance with the position of the control member relative to one axis, and on to a set of photodetectors (81, 82), a similar arrangement being used for the orthogonal axial position of the joystick. The device may be used for controlling the direction of flight of a guided missile.