baber/WOPTO huggingface dataset:
Patent GB-1467742-A (GB)
Title: Driver circuit for the electromechanical transducer of a  quartz clock
IPC: G04C3/14
Filed: 1975-07-04
Abstract: 1467742 Electronic timepiece ITT INDUSTRIES Inc 4 July 1975 [4 July 1974]  28298/75 Heading G3T [Also in Divisions H2 and H3] A circuit for driving an electro-mechanical transducer L, e.g. in a quartz clock, in which power is derived from a source UB via a resistor R comprises: a pair of complementary insulated-gate field-effect transistors T1, T2 forming an inverter stage; a pair of capacitors C2a, C2b connected in series between earth and the end of the resistor R remote from the supply; and the transducer drive means L connected between the junction of the two transistors and that of the two capacitors. During one half cycle of the input transistor is T1 conductive, to charge capacitor C2a and discharge capacitor C2b. During the other half cycle T2 is conductive to charge C2b and discharge C2a.
Patent GB-922871-A (GB)
Title: Improvements in contact lenses and methods of making such lenses
IPC: G02C7/04
Filed: 1960-08-16
Abstract: 922,871. Contact lenses. MUELLER WELT CONTACT LENSES Inc. Aug. 16, 1960 [Aug. 19, 1959], No. 28425/60. Class 97 (1). A corneal contact lens is made of a soft material for example a transparent silicone rubber, in particular a hydrocarbon substituted polysiloxane rubber mixed with a suitable filler. The lens may be formed in a mould shaped so that the concave side of the lens has projections 8 formed on at least an outer rim of the lens forming ducts so that liquid may reach a central pool 10 and the convex side has small depressions 11 all over it to prevent drops of liquid forming on that surface. The projections 8 may be random or arranged in a particular pattern. Alternatively the smooth rim of the lens may have channels cut in it leading to pool 10.
Patent GB-302451-A (GB)
Title: Improvements relating to sleeved garments
IPC: A41D27/10
Filed: 1927-10-26
Abstract: 302,451. Shanks, E. Oct. 26, 1927. Sleeves; coats.-To increase the freedom of movement of the wearer of sleeved garments, the scye portion 2, Fig. 1. is cut deeper than the form generally adopted and shown at dotted lines at 2<a>, a corresponding alteration being also effected in the seye part of the under portion 3, Fig. 3, of the sleeve. Instead of the under portion of the sleeve terminating at the dotted line 3<a> it is continued with an added portion 4. The rear portion of the part 3, which in ordinary practice is almost identical in shape with the edge 5<b>, Fig. 4, of the upper portion 5 of the sleeve, is cut on a curve gradually receding from the curve corresponding to the edge 5<b>.
Patent GB-242797-A (GB)
Title: Improvements relating to vehicle lamps
IPC: B60Q1/14
Filed: 1924-11-27
Abstract: 242,797. Howells, E. J., Jenkins, D. C., and Jones, J. O. Nov. 27, 1924. Lantern shutters.-In a vehicle lamp a number of parallel horizontally arranged metal blades c having reflecting surfaces are pivotally mounted on pins c<1> within a supporting ring b which is mounted within a cylindrical sleeve a adapted to be secured to the front rim of the lamp by screwed pins, spring arms, or other suitable means, the blades being adapted to be moved from a horizontal position into a downwardly inclined position by means of a vertical rod d pivotally connected at d' to the middle of the rear edges of the blades. The lower end of the rod is pivotally connected to a bell-crank lever f which is operated by means of transmission mechanism such as a Bowden wire h against the action of a spiral spring g located between one arm of the lever and a vertical portion e' of a bracket e enclosed within a downwardly extending casing j secured upon the exterior of the sleeve a. The other end of the Bowden wire may be connected to an operating lever i adjacent the driver's seat and having a spring-pressed plunger i<1> co-operating with notches i<2> in a quadrant i<3>.
Patent GB-1187621-A (GB)
Title: Improvements in or relating to Character Printing Mechanisms
Inventor: FOSTER ALAN
IPC: B41J7/32
Filed: 1967-06-20
Abstract: 1,187,621. Selective printing. INTERNATIONAL COMPUTERS Ltd. 31 May, 1968 [20 June, 1967], No. 28501/67. Heading B6F. A printing mechanism includes a straight or arcuate print bar 1 bearing a row of type characters on a face 2, and having a face 41 capable of engagement with a selected one of a plurality of spaced abutments 40 formed on a character selector 11, the abutments 40 being spaced by a multiple of the spacing of adjacent characters on the face 2 of the print bar, the character selector 11 being movable transversely of a path along which the print bar is movable, for selection of the abutment 40 to be engaged by the face 41, and movable in a direction parallel to the path, the movement of the character selector being effected through first and second setting members 13, 12, pawls 34, 23 being provided to arrest movement of the setting members. The transverse movement of the selector 11 selects a group of characters on the bar 1, the second movement selecting one character of said group. Each setting member 13, 12 includes a plurality of teeth such as 22 on the member 12 selectively engageable by the pawl 23 under fluid pressure actuation through balls 30, 31 in channels 28, 29 or under electromagnetic actuation (not shown). To select a character, the setting members 12, 13 are rotated by springs e.g. 17 when bails 16, 36 are rotated to permit such movement, until a pawl 23, 34 is actuated by an input impulse generated by punched card or paper tape reading apparatus (not shown) to prevent further motion of the setting members and hence the character selector. A bail 5 is rotated anticlockwise to permit the face 41 to engage the selected abutment 40 in its selected position under the influence of a spring 3. When the character is selected, a hammer 8 and aligning member 44 are actuated to effect impression. A plurality of printing devices as shown may be assembled along a print line, the bails 5, 16, 36, the print hammer 8, and the aligning member 44 being common to all the devices. Adjacent pawls 23 or 34 may be staggered.
Patent GB-772503-A (GB)
Title: Improvements in safety devices for ladders
IPC: E04D13/12
Filed: 1954-10-04
Abstract: 772,503. Ladders. LIVESEY, H. S. Sept. 19, 1955 [Oct. 4, 1954], No. 28504/54. Class 20(2) A ladder is secured to a gutter by means of an element having hoops 2, 3 shaped to fit different sizes of gutter, the ladder being secured by a hook 10 and chain 9 fixed on the element. Screw 4 or 5 secure the element to the gutter.
Patent GB-319692-A (GB)
Title: Improvements in and relating to apparatus for continuously recording the path of flight of aircraft
IPC: G01C17/20
Filed: 1929-09-20
Abstract: 319,692. Hugershoff, R. Sept. 26, 1928, [Convention date]. Course-recording apparatus.-In an apparatus for recording the path followed by an aircraft, the driving shaft of a visual speedometer of known kind such as that described in Specification 319,693, is also arranged to actuate a recording stylus with the interposition of two variablespeed friction-drives which adjust the component movements of the stylus in two rectangular directions according to the course being made. The shaft 1 is driven in known manner so that its speed is proportional to the ground speed of the aircraft, and drives friction discs 7, 8 through bevel gearing 6. The friction wheels 9, 10 driven by the discs are slidably mounted on shafts 11, 12 and are aaapted to be displaced across the discs by forks 13, 14 connected to slides 15, 16 which are actuated by cranks 17, 18. The cranks are operated by a shaft 19 turned by a handwheel 20 in which is mounted the compass 21. A pointer 22 can be adjusted relatively to a pointer 22<a> according to the angle of drift of the aircraft. Rotation of the shaft 11 displaces a slide 24 over the record surface 27, and this slide carries a screw spindle 29 over which a slide 25 is displaced by the rotation of the shaft 12, the stylus 26 being carried by the slide 25.
Patent GB-174992-A (GB)
Title: Improvements in centrifugal liquid pumps
IPC: F04D29/44
Filed: 1920-10-09
Abstract: 174,992. Hodgson, H. C., and Stone & Co., Ltd., J. Oct. 9, 1920. Casings. - The diverging annular discharge nozzle part cf a centrifugal pump is formed in an outer ring 4 which is separate from but is supported by the inner portion 1 of the impeller so as to rotate freely thereon. In multi-stage pumps, the first impeller may be of ordinary form having the divergent portion solid with the inner portion, the remainder being of the kind above described. Adjustable blades, serving as distance-pieces, may be fitted between the two members of which the discharge member is composed.
Patent GB-500862-A (GB)
Title: Improvements in or relating to electric travelling crabs
IPC: H02G5/04
Filed: 1938-10-03
Abstract: 500,862. Electric travelling crabs. RITTLER, F. Oct. 3, 1938, No. 28644. Convention date, Oct. 5, 1937. [Classes 104 (ii)- and 104 (iii)] An electric travelling crab is supplied with current by wheels 8, 8a running on conductors 5, 6, housed in chambers formed by U-shaped portions of the composite girder 1, 2 on which the crab runs. The conductors are insulated by insulators 3, 4, and on each conductor runs a pair of wheels 8 or 8a carried by arms 13 or 13a pivoted at 12, 12alpha to cross arms on insulating members 10, 11 extending through a slot in the girder and supported by a frame 14 depending from wheels 9, 9a running on the girder. Current passes from the wheels 8. 8a through arms 13, 13a and conductors 15, 15a to connecting plugs 16.
Patent GB-870029-A (GB)
Title: Aryl-substituted alkylamines and methods for their production
IPC: C07D295/08
Filed: 1959-08-21
Abstract: The invention comprises compounds of the formula:  <FORM:0870029/IV (b)/1> and acid addition salts thereof, where R1 and R2 represent hydrogen or alkyl groups of up to 6 carbon atoms or are combined as an alkylene chain and, together with the nitrogen atom, form piperidino, pyrrolidino, alkylpiperidino or alkylpyrrolidino radicals.  The compounds may be prepared by (a) reducing the corresponding N-substituted phenoxyphenyl acetamide, e.g. with lithium aluminium hydride, whereby the carbonyl group is reduced to a methylene group, or when N-alkyl substituted derivatives are desired (b) alkylating b -phenoxy-b -phenyl ethylamine or an Nmonoalkyl derivative thereof, e.g. with an alkyl halide or sulphate or (c) acylating the ethylamine with an alkanoic acid anhydride and reducing the carbonyl group of the resulting N-acyl derivative to a methylene group e.g. with lithium aluminium hydride.  Acid addition salts may be prepared for example with hydrochloric, hydrobromic, hydriodic, sulphuric, acetic benzoic, citric, maleic, malic, gluconic and ascorbic acids.  Examples describe the preparation of b -phenoxy-b -phenyl-ethylamine and its N-methyl, N,N-diethyl and N-isopropyl derivatives and of 1-(b -phenoxy-b phenylethyl)- pyrrolidine and piperidine by method (a) and of N,N-dimethyl and N-ethylb -phenoxy-b -phenyl ethylamine by method (c).  The phenoxy-phenyl-acetamides used in the above examples are prepared by reacting sodium phenate with the a -bromo-phenyl acetamide which are in turn prepared by reacting a -bromo-phenyl-acetyl chloride with the appropriate amine.  a -Bromo-phenyl-acetyl chloride is prepared by brominating phenyl-acetyl chloride.
Patent GB-261740-A (GB)
Title: Improvements in apparatus for the distillation or drying of coal or other solid materials
IPC: C10B7/00
Filed: 1926-11-15
Abstract: 261,740. Hoffmann, F. G. Nov. 17, 1925, [Convention date]. Retort furnaces; charging and discharging. - An oven for distilling. solid fuels or for drying materials comprised narrow vertical retorts 6 open at the top and bottom and separated by narrow heating spaces 7 and vertical partitions 8 so that a rigid structure is obtained which obviates warping even at high temperatures. The retorts are formed into units 1 connected together and extending radially from central flues, the retort structure being rotated by driving gear 4. The fuel is charged continuously from a hopper 10 and during rotation of the oven slides on the bottom plate 14 until a discharge opening at the point 13 is reached, leading to a collecting space 15 for the coke. Heating gases from a conduit 17 circulate through flues, formed between theretorts by partitions 9, from a lower to an upper compartment which are separated by a partition 23, an outlet 18 leading from the upper compartment. To ensure uniform heating the inlet openings 24 and the outlet openings 26 of the flues are made gradually narrower as they approach the central partition 23. In an alternative construction the partition 23 is dispensed with and the hot gases circulated through a series of superposed flow and return flues. To facilitate discharge the retorts are vibrated by strikers 33 which fall on rails 32 on the top of the retort, this action serving also to compress the coke.
Patent GB-499422-A (GB)
Title: Sidereal chronometer
IPC: G04B19/20
Filed: 1937-10-21
Abstract: 499,422. Sidereal chronometer. BROWN, G.H. Oct. 21, 1937, No. 28755. Convention date, Oct. 24, 1936. [Class 139] A sidereal chronometer gives in minutes of arc, indications up to 360 minutes, which are directly readable, preferably through windows. It comprises 3 discs: c showing units (0-9), f hundreds (0-3), d tens (0-6), and having associated with it a coaxial sector c with tail e<1> for the numerals 7, 8, 9. The units disc c is driven by jumper mechanism, Figs. 7, 8 (not shown), from the chronometer and each revolution, a tooth g engages a projection i and advances the disc d one division. When the figure 0 is thus presented, it is covered by the sector e showing number 7, the sector having been advanced with the disc by j, one of two projecting pins. The contour of disc d at 0 is concave so that the tooth g rotates only the sector e. This continues until 0 is uncovered when g engages the tail e<1> and rotates sector e and through the other pin j<1> the disc d. Meanwhile, a projection m on a disc d<1>, Fig. 6, fixed to disc d drives the hundreds disc f. This process continues till a reading of about 325 is indicated, when mechanism shown in Fig. 5 causes the withdrawal of the pins j, j<1> and the simultaneous appearance of a temporary tooth l opposite 0. Thus, the device indicates 359, 360 and then by the operation of a lower tooth h opposite the unit numeral 1 which engages the tooth l and rotates the disc d and consequently disc f, it indicates 001. The mechanism for withdrawing the pins j, j<1> consists of a Maltese cross q with 8 slots, rotatably secured at q<1> to the underside of the disc d, a fixed crown r mounted on a bridge and having associated therewith, two pins s, s<1>, a lever n pivoted at n<1> and a ramp (not shown). The cross carries a peg t which between the readings of 325 and 015 forces the tooth l forming part of the lever n, outwards and forcing the other end of the lever up a ramp against the action of a spring n<2> and consequently withdrawing the pins j, j<1>. When the peg t rotates further, the spring n<2> returns the lever to its former position.
Patent GB-1397991-A (GB)
Title: Method of electroplating
IPC: C23C10/28
Filed: 1972-06-20
Abstract: 1397991 Electro-plating with iron coating with Al and sintering BRITISH STEEL CORP 12 April 1973 [20 June 1972] 28775/72 Headings C7B and C7D In electro-plating with Fe, there is employed a bath containing a FeCl 2  or FeSO 4  electrolyte in which is dissolved an amount of a citrate or citric acid additive which inhibits the formation in the bath of insoluble ferric compounds, elemental Fe e.g. scrap Fe being periodically added to the bath at a rate sufficient to reduce substantially all the ferric citrate formed therein by aeration. Specified conditions for the electro-plating with Fe are a current density of 150-500 amps/sq. ft., a bath containing trisodium citrate at 20-90C and a pH in the range 1.0-5.0 maintained by the periodic addition of HCl. in the Examples mild steel strip is degreased in alkaline baths, etched in HCl, electro-plated with between 1 and 3 microns of Fe, acid rinsed, dried, sprayed with sodium or potassium silicate solution, coated with electrostatically charged Al powder, dried, coated with sodium carboxy-methyl-cellulose, rolled, and sintered at 502-600C to Specification 1203473 is referred to.
Patent GB-647995-A (GB)
Title: Improvements in or relating to current limiting devices or choke coils
IPC: H01F38/10
Filed: 1948-11-06
Abstract: 647,995. inductances. EKCO-ENSIGN ELECTRIC, Ltd., and STICKLEY, W. A. Nov. 6, 1948, No. 28891. [Class 38 (ii)] An inductance coil 3, which may operate as a current-limiting device for a discharge lamp, has a laminated or dust core 4 and is substantially enclosed by a box of magnetic material, such as steel, constituted by parts 1, 2, each part being bent from a single sheet so as to form two sides at right-angles with an end part integral with one of the sides. The parts 1, 2 are suitably positioned during assembly to adjust the air-gap of the choke. The parts are then secured in this position by clamps or wrappings.
Patent GB-810684-A (GB)
Title: Preparation of cross-linked polysiloxanes
Inventor: LAWTON ELLIOTT JOHN
IPC: C08G77/06
Filed: 1956-09-21
Abstract: Hexamethylcyclotrisiloxane is polymerized to elastomers by irradiating the solid polymer with high-energy electrons.  The polymer to be irradiated may be shaped, e.g. in the form of a bottle, cup, tubing, filament or pipe, may be in a vacuum or in an atmosphere of nitrogen, argon, helium, krypton or xenon, or may be mechanically or colloidally suspended in a non-solvent, e.g. water; and the irradiation may be effected below room, at room, or at elevated temperatures below the melting-point of the trimer (64 DEG  C.). Fillers, e.g. silica, silica aerogels, silica aerosils, surface-esterified silicas, chlorosilanetreated silicas, calcium silicate, a - and g -aluminas, carbon blacks, clays, calcium carbonate, magnesium carbonate and titania, and stabilizers, modifiers and dyes may be incorporated in the trimer, prior to polymerization.  In examples: (1, 2) the trimer was polymerized by irradiation with electrons from a resonance transformer, but (3, 4) polymerization was prevented by the presence of free radical initiators.  Uses.-For making articles, electrical insulation, gaskets and rendering articles waterrepellent.  Specification 594,730 is referred to.
Patent GB-1131334-A (GB)
Title: Cyclic imide derivatives having nematicidal and fungicidal properties
IPC: C07D209/48
Filed: 1966-06-28
Abstract: 1,131,334. Cyclic imide derivatives and process for their preparation. SCHERING A.G. 28 June, 1966 [11 Aug., 1965], No. 28985/66. Heading C2C. [Also in Division A5] Compounds of the formula wherein R represents an alkyl group, the structure represents (a) a group of the formula in which A and A<SP>1</SP> each represents two hydrogen atoms, two methyl groups, or one methyl group together with one hydrogen atom, (b) a group of the formula in which A and A<SP>1</SP> each represents a hydrogen atom or a methyl group, or (c) a cycloaliphatic or an aromatic ring, may be obtained by reacting an N-hydroxy-carboxylic acid imide of the general formula in an inert organic solvent with an alkyl isocyanate of the formula R-N=C=O. The imide starting material may be prepared in situ by treating the corresponding anhydride with hydroxylamine.
Patent GB-897310-A (GB)
Title: Improved fibre forming acrylonitrile polymer compositions
IPC: C08L33/20
Filed: 1958-09-11
Abstract: A composition of matter comprises 70 to 95 weight per cent of (1) a polymer containing from 80 to 99 weight per cent of acrylonitrile and from 1 to 20 weight per cent of another monoolefinic monomer copolymerizable therewith, and 5 to 30 weight per cent of (2) a polymer containing at least 80 weight per cent of vinyl or vinylidene chloride and less than 20 weight per cent of other monoolefinic monomers copolymerizable therewith.  Monomers specified as being copolymerizable with acrylonitrile are acrylic, methacrylic and chloroacrylic acids, their amides and their methyl, ethyl, butyl, octyl, methoxymethyl and chloroethyl esters, vinyl fluoride, chloride and bromide, vinylidene chloride, 1-chloro-1-bromoethylene, methacrylonitrile, vinyl acetate, chloroacetate and propionate, itaconic acid, esters of itaconic fumaric, maleic, citraconic, mesaconic and methylene malonic acids, styrene, vinyl naphthalene, acenaphthalene, methyl vinyl ketone, alkyl vinyl ethers, vinyl pyridines and imidazoles and alkyl derivatives thereof, N-vinylcarbazole vinyl furane, vinyl sulphonic acid and N-vinyl succinimide.  The acrylonitrile copolymer employed may contain three components, e.g. acrylonitrile, a vinyl pyridine or vinyl imidazole and vinyl chloride or methacrylonitrile. Alternatively, a blend of copolymers may be used, e.g. a blend of a copolymer of 93 to 97 weight per cent of acrylonitrile and 3 to 7 weight per cent of vinyl acetate blended with a copolymer of equal weights of acrylonitrile and a vinyl-substituted heterocyclic tertiary amine in such proportions that the amine constitutes 6% by weight of the blend. Chlorine-containing polymers specified are homopolymers of vinyl and vinylidene chlorides and copolymers with each other and with monomers such as acrylic, methacrylic, maleic and fumaric esters, vinyl acetate, isopropenyl acetate, vinyl alkyl ethers, vinyl alkyl ketones and isobutylene.  The chlorine-containing polymers may be stabilized by compounds such as dibutyl tin dilaurate, tin mercaptide, epoxidized fatty acid esters, dibasic lead phthalate, lead carbonate and cadmium and barium compounds.  The polymer blends may be obtained by co-precipitating aqueous dispersions of the two polymers, or, preferably, by dissolving the polymers in a solvent, e.g. dimethyl formamide, dimethyl acetamide and mixtures thereof with ethylene sulphite or diethyl phosphate; nitromethane and water and mixtures thereof with diethyl sulphite; dimethyl methane phosphonate, tris(dimethylamido) phosphate, tri(betacyanoethyl) nitromethane, trichloronitropropanol butyrolactone and ethylene carbonate.  From the resulting solutions fibres are spun possessing dyeability and altered burning characteristics.
Patent GB-655757-A (GB)
Title: Improvements in or relating to the production of an edible foaming substance
IPC: A23L1/00
Filed: 1948-12-31
Abstract: A preparation which can be whipped to a foam is made by dissolving ethyl or methyl cellulose and glycerol monostearate in water or in a potable liquid such as milk or whey at a temperature of 120 DEG  to 212 DEG F and homogenizing this solution while at a temperature above the m.pt. of the glycerol monostearate.  The proportion of ethyl or methyl cellulose may be 1-10 per cent, and of the glycerol monostearate 4-10 per cent of the solution. Sweetening agents, fats and flavouring substances may be incorporated.  The viscosity may be increased by addition of a wax or higher alcohol or of an acid such as tartaric or citric acid.