baber/WOPTO huggingface dataset:
Patent GB-877575-A (GB)
Title: Improvements in or relating to devices for the lateral displacement of crop lying onthe ground
IPC: A01D78/00
Filed: 1957-09-26
Abstract: 877,575. Haymaking machines. VAN DER LELY N.V., C. Sept. 26, 1957 [Sept. 29, 1956], No. 30222/57. Class 6(3). In a rake-wheel type of haymaking machine, having the rake-wheels in groups each group being turnable about a vertical axis to occupy different positions for different haymaking operations, the individual rake-wheels of a group are coupled to a lifting lever 44, by flexible members 45, 45B, the connection to the lever lying on or close to the vertical axis so that adjustment of the group does not affect the lifting. The arrangement is shown applied to the machine described in Specification 877,574, wherein one group of rake wheels 23B, 24B, is mounted on cranks on a beam 13B, pivoted to an arched frame member 5 about a vertical pivot 8. A longitudinal beam 2 connects the member 5 to similar members carrying other rake-wheel groups, and a common lifting shaft 38, is mounted in bearings 41 on the beam 2, and can be rotated to lift an integral lever, such as 44, for each group to which it is connected by chains 45, 45B, and springs 46B, 47B.
Patent GB-1106555-A (GB)
Title: Improvements in electrical coils
IPC: H01F29/06
Filed: 1965-07-16
Abstract: 1,106,555. Transformers; electromagnets. ALLMNNA SVENSKA ELEKTRISKA A.B. 16 July, 1965 [17 July, 1964], No. 30245/65. Headings H1P and H1T. A winding for a time-lag over-current relay or a current transformer comprises a multi-layer coil having intermediate turns raised above the rest of the coil so that they can be contacted by a removable screwed tapping member 20 (Fig. 1) carried by a spring-urged contact-plate 16. Part of the winding 5 is wound evenly on an inner bobbin 4, the remaining part being wound on an outer bobbin 7 having flanged portions 10 grooved to carry the raised portions of the intermediate turns. A screw 21 is arranged so that it contacts the winding to prevent the current path through the winding from being broken when the contact 20 is not making contact with one of the raised turns. The contact arrangement shown in Fig. 1 may be replaced by a contact plate 16 (Figs. 4 and 5, not shown) biased by a spring member 31 and pivoted on an insulating member 22 which is provided with grooves 25 in a direction perpendicular to the coil axis into any of which a contact plug 26 can be pushed. The contact plate has a lip 30 which contacts the winding when the contact plug is wholly or partly removed.
Patent GB-617831-A (GB)
Title: Improved method for electric resistance seam welding applicable to the sheaths of electric cables
IPC: B23K11/18
Filed: 1946-10-10
Abstract: 617,831. Electric welding. BRITISH INSULATED CALLENDER'S CABLES, Ltd., KEEFE, E. J., and WILSON, L. B. Oct. 10, 1946, No. 30330. [Class 83 (iv)] [Also in Group XXXVI] In roller lap-seam welding low resistance sheet-aluminium &c., higher-resistance and melting-point steel &c. strips of similar thickness are interposed between the work and the electrodes. The projecting flanges 8, 9 of an aluminium cable sheath 7 are welded between electrodes 2, 3, with steel strips 10, 11 fed from reels 12, 13 guided by arms 17, 18 between the flanges 8, 9 and the electrodes 2, 3. The electrodes 2, 3 are idle and fluid-pressed, and the feed depends on the take-up reels 24, 25 for the strips 10, 11 which are separated from the flanges 8, 9 by further guides 19, 20. In a modification for lap-welding sheets, a driven electrode is used with synchronized take-up reels. Continuous or intermittent overlapping seam welds may be produced. In an example 0.036 inch aluminium alloy D.T.D. 213A was welded at 13 feet per minute using 1 per cent carbon steel strips 0.036 inch thick and 50-cycle A.C. supply.
Patent GB-1077213-A (GB)
Title: Formaldehyde stabilization
Inventor: HALPERN BENJAMIN DAVID
IPC: C07C47/058
Filed: 1964-07-31
Abstract: Aqueous formaldehyde solutions, stabilized against the separation of paraformaldehyde, comprise a 30-50% by weight aqueous formaldehyde solution and 0.000001-0.05 parts by weight per 100 parts solution, of a water-dispersible nonionic surfactant which is the product obtained by alkoxylation of 1 mol. of partial ester of a C2- 12 water-soluble polyhydric aliphatic alcohol having 2-8 hydroxyl groups and an acid which is a C12-C18 monocarboxylic aliphatic or a tall oil acid, with 3-40 mols. of ethylene oxide.  The stabilized composition are made by dispersing the required amount of surfactant in the formaldehyde solution which is maintained above 70 DEG  F. and ageing the solution at at least 70 DEG F. for sufficient time to permit the dispersion of the surfactant to a non-micellar condition. The preferred surfactant is ethoxylated sorbitan monopalmitate.  The composition may also include 0.00001-0.0001% by weight of a water-dispersible nonionic defoamer, based on formaldehyde solution, e.g. a polyoxypropylene, a polyethylene glycol, sodium lauryl sulphate, lauryl alcohol or polyepichlorhydrin. Examples are provided.
Patent GB-402928-A (GB)
Title: A process for the halogenation of unsaturated hydrocarbons
IPC: C07C17/156
Filed: 1932-10-29
Abstract: Addition halogenations are carried out, while substantially inhibiting substitution reactions, by reacting unsaturated hydrocarbons, or mixtures thereof with paraffin or aromatic hydrocarbons, with halogen in the presence of oxygen or gases containing it, e.g. air.  Suitable starting materials are olefines, diolefines or terpenes, or mixtures thereof with paraffin or aromatic hydrocarbons such as benzene and its homologues, methane and its homologues or aralkyl hydrocarbons. Comparative experiments are given illustrating the effect of oxygen and of air on the chlorination of a mixture of butane and butylene, and of air on the chlorination of butane alone.  In an example, a mixture of b -butylene and n-butane is chlorinated in the presence of air, whereby the whole of the butylene is converted to dichlorobutane whilst only a small proportion of the butane is converted into chloride.
Patent GB-1379535-A (GB)
Title: Smoke detectors
IPC: G01N27/66
Filed: 1973-06-27
Abstract: 1379535 lonization detectors ANGLO AMERICAN CORP OF SOUTH AFRICA Ltd 27 June 1973 [27 June 1972 15 Nov 1972] 30464/73 Heading H1D In a smoke detector of the ionization type comprising a smoke chamber 36 and a reference chamber 18 each containing a grid electrode 38, 32, the sections 20, 22 and the housing 34 are made of conductive plastics material which provides electrostatic shielding yet is resistant to corrosion. Such a material can contain carbon black as metal dopes to give a resistivity of about 10<SP>-4</SP> ohms /cc. The grid electrodes 32, 38 can also be made of conductive plastics material.
Patent GB-724163-A (GB)
Title: Steroid alkali-metal enolates
IPC: C07J9/00
Filed: 1952-12-03
Abstract: The invention comprises 21-alkoxyoxalyl-11-hydroxyprogesterone alkali metal enolates and their preparation by mixing an 11-hydroxyprogesterone with a solution of an alkali metal in an alkanol and an alkyl diester of oxalic acid, at a temperature between about zero degrees Centigrade and the boiling point of the reaction mixture.  Subsequently the 21-alkoxyoxalyl-11-hydroxyprogesterone alkali metal enolate may be treated with iodine to produce a 21-iodo-11-hydroxyprogesterone, which is treated with an alkali metal acylate to produce a 21-acyloxy-11-hydroxyprogesterone.  Examples describe the preparation of the sodium enolates of 21-(methoxy and ethoxy)-11(a  and b )-hydroxyprogesterone and the potassium enorote of 21-ethoxyoxalyl-11(a )-hydroxyprogesterone. Specification 724,094 is referred to.
Patent GB-1041865-A (GB)
Title: Process for dyeing and printing materials of fibrous structure containing hydroxyl groups
IPC: C09B62/503
Filed: 1964-08-04
Abstract: Dyestuffs containing at least one group -SO2-CH2CH2-S-SO3X wherein X is H or an alkali metal, are employed as reactive dyes to colour fibres of cellulose or polyvinyl alcohol.  The dyes may be prepared by the action of sodium thiosulphate on dyes containing at least one vinyl sulphone group. The dyes may contain other groups including -SO3H groups.  The dyes may be from the mono- or polyazo, metallized azo and formazane, anthraquinone, phthalocyanine, azine, dioxazine, nitro, stilbene, triphenylmethane and nitrosonaphthol ferrous lake series.  Examples are given of dyeing in which a number of dyes are specified.ALSO:Dyeing or printing fibres of natural or regenerated cellulose or of polyvinyl alcohol or mixtures thereof, with a dyestuff containing at least one group: -SO2-CH2-CH2-S-SO3X wherein X is H or an alkali metal and fixing in the presence of an agent having an alkaline reaction in water.  The alkaline agent may be applied before, after or together with the dye.  Fixation may be carried out at 10-200 DEG C by rolling up at room temperature, heating or steaming.  The preferred dyes are of the azo, anthraquinone or phthalocyanine series, are water soluble and contain at least one -SO3H group.  The dyes may be applied together with an electrolyte, urea, dispersing or thickening agents.  The fibres to be dyed may be blended with other synthetic, e.g. polyester, fibres.  Examples are given.
Patent GB-1003704-A (GB)
Title: Improvements relating to ink-releasing sheets and ribbons
IPC: B29C55/14
Filed: 1962-08-10
Abstract: Compositions used in making pressure-sensitive, ink-releasing sheets and ribbons, e.g. typewriter ribbons (see Division D2), comprise: (Example I) vinyl chloride-acetate copolymer, lanolin, carbon black, alkali blue, toluene and ethyl acetate; (Example III) a first coating of anchoring composition comprising vinyl chloride-acetate copolymer, methyl ethyl ketone and dioctyl phthalate, and a coating of ink-releasing composition comprising vinyl chloride-acetate copolymer, methyl methacrylate-ethyl acrylate copolymer, polystyrene, ultramarine, alkali blue, castor oil, oleic acid, dioctyl phthalate, toluene and methyl ethyl ketone; (Example V) an anchoring composition of an acqueous dispersion of a copolymer of vinylidene chloride, acrylonitrile and itaconic acid and an ink-releasing layer of polyvinyl butyral, lanolin, mineral oil, alkali blue, toluene and ethyl acetate; and (Example VI) polyvinyl acetate, lanolin, mineral oil, carbon black, alkali blue, toluene and ethyl acetate. Specifications 851,875 and 890,004 are referred to.ALSO:Pressure-sensitive, ink-releasing sheets and ribbons, e.g typewriter ribbons, comprise an asymmetrically oriented polymeric linear terephthalate ester base film having a transfer composition adhering to one side.  In the examples, asymmetrically oriented films of polyethylene terephthalate are coated with: (Example I) vinyl chloride-acetate copolymer, lanolin, carbon black, alkali blue, toluene and ethyl acetate; (Example III) a first coating of anchoring composition comprising vinyl chloride-acetate copolymer, methyl ethyl ketone and dioctyl phthalate followed by a coating of ink-releasing composition comprising vinyl chloride-acetate copolymer, methyl methacrylate-ethyl acrylate copolymer, polystyrene, ultramarine, alkali blue, castor oil, oleic acid, dioctyl phthalate, toluene and methyl ethyl ketone; (Example V) an anchoring composition of an aqueous dispersion of a copolymer of vinylidene chloride, acrylonitrile and itaconic acid and an ink-releasing layer of polyvinyl butyral, lanolin, mineral oil, alkali blue, toluene and ethyl acetate; and (Example VI) polyvinyl acetate, lanolin, mineral oil, carbon black, alkali blue, toluene and ethyl acetate. Specifications 890,004 and 951,875 are referred to.
Patent GB-813859-A (GB)
Title: Improvements in or relating to transistor amplifiers
Inventor: CHAPMAN ROGER
IPC: H03F1/34
Filed: 1956-10-10
Abstract: 813,859. Transistor amplifier circuits. KOLSTER -BRANDES Ltd. Oct. 4, 1957 [Oct. 10, 1956], No. 30839/56. Class 40 (6). In a multi-stage transistor amplifier in which the input signal is applied to the base of the first stage, the biasing circuit for which is arranged so that negative voltage feedback from the final stage due to the impedance of the common supply source is eliminated, negative feedback is introduced into the input circuit of the second stage to eliminate positive feedback due to said impedance, from the final stage to the penultimate stage. The Figure shows a four-stage hearing aid amplifier in which the collector load R3 of the first stage is connected between the emitter and the battery so that the path from the negative side of the battery to the input of the second stage through which undesirable negative feedback due to the battery impedance occurs includes the relatively high impedance of the collector of the first stage so that the negative feedback is small. The bias circuit for the base of transistor T1 is decoupled by a capacitor C1 and sufficient negative feedback is reintroduced into the base circuit of transistor T2 through C1 to offset positive feedback to the base circuit of transistor T3 due to the common battery impedance. The amplitude of the output signal of the amplifier may be varied by means of a potentiometer P or a switch SW in the output circuit or by varying the resistor R6. In an alternative circuit (Fig. 1, not shown), the base of transistor T1 is biased by connecting two resistors in series between the collector supply and the base, the common point of the resistors being decoupled by a capacitor having its other electrode connected to the base of transistor T2 to reintroduce the desired small amount of negative feed-back. It is explained in the Specification that apart from capacitor C1 no damage will result to these circuits from accidental reversal of the battery (Figs. 3, 4 and 6, not shown). The reverse voltage which occurs across capacitor C1 may be avoided if the right-hand terminal of the capacitor is connected instead to the base of transistor T2 (Fig. 5, not shown).
Patent GB-262779-A (GB)
Title: Improved coupling for trailers and tractors
IPC: B60D1/02
Filed: 1926-12-07
Abstract: 262,779. Schlagenhauf, J. Dec. 12, 1925, [Convention date]. Couplings for tractors.-A spring-pressed bolt 8 on the tractor is adapted to pass through a hole 14 in a semi-circular bar 13 carried by the trailer. The bolt is connected by a cord 11 with a control near the drivers seat. The opening 7 is closed automatically by a spring-pressed bolt 5 when the bolt 8 is retracted. In a modified construction, Fig. 3, a nose 16 on a bracket 15 carried by the tractor passes through the aperturein the bar 13, the bar being held down by a spring-pressed angle-piece 20.
Patent GB-262790-A (GB)
Title: Improvements in apparatus for the introduction of forms and index cards into typewriting machines or the like
IPC: B41J13/12
Filed: 1926-12-08
Abstract: 262,790. M³ller, W., and Nemecek, V. Dec. 8, 1925, [Convention date]. Void [published under Sect. 91 of the Acts]. Drawings to Specification. Type-lever machines; aligning for impression; locking-devices, ink-ribbons mechanism.-A device for facilitating the introduction of forms or cards into typewriters comprises a lever adapted to depress the type-lever segment and simultaneously rook the aligning-guide and ink-ribbon fork away from the platen. An interlock prevents. simultaneous operation of the lever and case-shift keys.
Patent GB-608029-A (GB)
Title: Method of moulding an insert into an article
Filed: 1945-01-30
Abstract: 608,029. Moulding inserts into plastic articles. TINNERMAN PRODUCTS, Inc. Jan. 30, 1945, No. 31206/47. Convention date, March 20, 1944. Divided out of 607,957, [Group XXV]. [Class 87(ii)] Relates to moulding an insert into a non- metallic article and consists in supporting the insert on a core in suspended position in relation to the mould cavity, filling the intervening space with mouldable material and after moulding withdrawing the cores to leave the insert embedded in the moulded article. The insertion is described with reference to the production of the bolting device described in Specification 607,957. The insert 20 comprises a U-shaped strip of metal having teeth 15, that are to project into a hole in the finished article and which slide into grooves 40 in the core 35 that is carried by the upper mould part 30. The space 36 in the lower mould part is filled with material such as a thermosetting resin and the core and insert are forced in during the closing of the mould. Holes 27 in the insert permit passage of the resin, and the insert is further secured by a bent over lug 29.
Patent GB-783544-A (GB)
Title: A stapling machine with a plurality of stapling units
IPC: B27F7/19
Filed: 1954-10-29
Abstract: 783,544. Stapling. MEZGER, H. Oct. 29, 1954 [Nov. 4, 1953], No. 31283/54. Class 89(3) A row of staples is inserted in the top or bottom of a folding carton supported on a table 1 by a number of staplers 16 which are attached to cross-bars 12, 14 coupled together by links 13 and to levers 4, 7 by links 5, 9 so that the staplers can be swung into position over an anvil plate 2 by a handle 15 and then operated by a foot lever 11 against a spring 17. The table 1 may be adjustable in height and leaf springs 20 may be provided to bear against the rear face of a carton. In a modification, Fig. 5, the staplers 16b are adjustable along a crossbar 12b of a frame 9b which can be lowered by a foot lever 11b to operate the staplers after the frame has been swung forward manually to position the staplers over the work and to disengage pins 34 from stops 33. The anvil plate is in two separable parts 2b and the table 1c has an adjustable extension 2c. The staplers may be operated by a motor or an electomagnet instead of by a foot lever. The table instead of the stapler head may be displaceable backwards and forwards for positioning the work, or upwards and downwards to effect stapling.
Patent GB-412107-A (GB)
Title: Improved combination pocket case
IPC: A24F15/18
Filed: 1933-11-10
Abstract: 412,107. Pocket cases combined with watches and lighters. SIMON, C., Vaduz, Liechtenstein. Nov. 10, 1933, No. 31422. Convention date, Nov. 18, 1932. [Class 18.] A pocket case comprises compartments a, d, Fig. 3, to hold cigarettes and a lighter respeotively, the lighter compartment being closed by a lid h carrying a watch p. The cigarette compartment is provided with a separate lid g hinged, like the lid h, to the dividing wall between the two compartments ; but whereas the lid g is opened by a spring when its catch is released, the lid h is urged by a spring to the closed position. The side and back of the lighter compartment are cut away to allow access to the lighter operating lever and the top is also cut away so that the cap of the friction lighter can swing upwards. The watch ease normally supports the lighter and comprises a casing r, Fig. 4, connected to a rectangular frame s soldered beneath an aperture in the lid h, the casing being closed at one end by a sprung-on cover x, and at the other by a frame v for the watch glass. The winding knob lies in a recess in the lower wall of the case.
Patent GB-810818-A (GB)
Title: Improvements in or relating to processes for electrolytically coating metals with a platinum layer
IPC: C25D3/50
Filed: 1956-10-16
Abstract: 810,818. Electrolytically plating with platinum. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 16, 1956 [Oct. 19, 1955], No. 31465/56. Class 41. A metal object, e.g. a molybdenum wire, is cathodically coated with platinum black from an aqueous solution containing per litre 150 to 300 gms. chloroplatinic acid and 1 to 15 gms. mercuric chloride, the deposit being converted into a metallic layer and the co-deposited mercury being evaporated by subsequently sintering, e.g. at 1000‹ C. The process may be repeated several times, typically to produce an initial layer of thickness 0.5 to 0.7 Á followed by similar or thicker coatings to give a total thickness of deposit of 10 Á.
Patent GB-209890-A (GB)
Title: Improvements in seaplanes, amphibian aircraft, and the like
IPC: B64C35/00
Filed: 1922-11-17
Abstract: 209,890. Fairey Aviation Co., Ltd., and Fairey, C. R. Nov. 17, 1922. Floats.-A seaplane float of the kind furnished with a wheel for enabling the seaplane to take off from or alight upon land, or for facilitating its transport to the water's edge, has a retractable step, disposed in front of the downwardly-projecting portion of the wheel, for the purpose of reducing the resistance it offers in its passage through the water. The step may be raised automatically or by manuallyoperated means, or by a combination of both methods, in order to avoid injury or to afford additional clearance when the machine is running over land. In the construction shown in Fig. 1, the wheel 12 is mounted upon an axle 13 in a well in the float 11. A wedge-shaped retractable shoe 15, pivoted at 16, is normally held in a position in which it shields the projecting portion of the wheel, by means of a buffer-spring 20 confined between a plate 21 at the top of the float and a tubular slide 22 bearing against the top of the shoe 15 and movable within a cylindrical guide 23. The shoe 15 is constructed with rigid sides and bottom, and is slightly wider than the tyre of the wheel; its side edges extend rearwards a short distance on either side of the tyre. A rod 24 attached to a bell-crank lever 25 passes through the spring 20 and is fixed.at its lower end to the shoe 15 in order that by applying tension to a flexible wire 27 attached to the other arm of the lever 25, the pilot can at will raise the shoe into the well. According to a modification, the shoe 15 extends across the entire width of the float and is provided with two automatically and manually controlled buffer-springs. According to a further modification in which no normal control is provided, the shoe is permanently external to the bottom of the float and is arranged to collapse after the manner of bellows when an obstacle is encountered. The shoe is comprised of fixed upper bars 28, Figs. 6 and 8, with curved lower edges, and flexible lower bars 29 secured to which is a rigid but longitudinally flexible bottom 31. Triangular pieces of canvas 30 are secured to the sides and maintained under tension by the springiness of the lower bars 29.
Patent GB-825500-A (GB)
Title: Improvements in or relating to cloches for horticultural and like purposes
IPC: A01G13/04
Filed: 1957-10-09
Abstract: 825,500. Cloches. PALMER, F. Oct. 9, 1957, No. 31517/57. Class 20(1) The various parts of a cloche comprising side panels and a flat top panel, are held together by a wire frame and two wire bracing members in such a manner that the top panel of the cloche may be adjusted without disturbing the side panels. The wire framework comprises side portions 7 and 8 bent to form loops 13 and 14 at their lower ends for engaging the lower edges of the side panels 10 and 11, and diverging at their upper ends 18 to merge with the handle portion 9 of the framework Each of the bracing members 19 and 20 comprises a straight portion which in use lies against the outer surface of a side panel, parallel to the top edge thereof, and passes over the side portions of the wireframe to press them into engagement with the side panels, and are bent at each end of the straight portion to form an inverted U for engagement with the upper edges of the side panels. In the case of the member 19, each of the free ends of the side U's are bent to form a second loop which extends towards the opposite side panel, and the free end of the second loop is bent to extend upwardly to the top of 20, the free ends of the U are bent to form the panel, outwardly over the upper edge of the panel, and is then formed into a hook 27. In the case of a bracing member a second loop 29 parallel with the side plate, are bent outwardly over the top of the side plate at 30, downwardly and inwardly towards the side panel at 31, upwardly at 32, and is finally formed into a loop 33. As a result of these configurations of the members 19 and 20, the top plate 12 of the cloche may be held in a ventilating position v, a closed position shown in full lines in Fig. 2, or raincatching poositions r and r<SP>1</SP>.