baber/WOPTO huggingface dataset:
Patent GB-1088754-A (GB)
Title: Transformer control arrangement
Inventor: SCOTT ALEXANDER NEWTON
IPC: H02J3/38
Filed: 1963-07-12
Abstract: 1,088,754. Tap change arrangements for parallel - connected transformers. BRUCE PEEBLES INDUSTRIES Ltd., and A. N. SCOTT. July 9, 1964 [July 12, 1963; March 6, 1964], Nos. 27822/63 and 9693/64. Heading H2H. A tap change control system for three transformers in parallel is arranged so that a tap change on the master transformer initiates a sequential tap change on the remaining two. The Figure shows the control circuit of one transformer which circuit is identical with the other two and comprises a voltage regulating relay 22, a line drop compensator 21 and a directional current relay 16, the relay 22 having a contact 26 controlling tap raising and lowering relays 23, 24, and the relay 16 having a contact 32 controlling raising and lowering stepping relays 29, 31, which in turn control contacts 33 ... 38. A multi-contact switch 27 provides for independent, master or follower operation or will switch the control circuit off. Another switch 41 provides manual tap change through switches 42, 43 or automatic tap change through the relay 22. Each control circuit includes a current transformer 12 coupled through a current transformer 13 to a circulating current circuit 28 which normally carries load current. A tap change on the master transformer (e.g. operation of raise relay 23) produces a circulating current due to terminal voltage difference and current flows in one direction through the master relay 16 and in the other direction through the relays 16 of the other two transformers, each relay being responsive to the component of circulating current provided by its respective current transformer 13. As a result master relays 23, 24 are disconnected to prevent a further tap change and the follower relays 29 are connected by contacts 32, although the position of the switch contacts 27 ensures that only the first follower is tap changed. When this is completed the reversal of current through the first follower relay 16 prevents a further tap change and initiates the tap change on the second follower, after which the circulating current due to terminal voltage difference disappears and relays 16 restore to normal. Relay 16 is protected by the contact 19 of an overcurrent relay 18 and has a biasing resistor 17 for use if the transformers have dissimilar tapping ranges or impedances. In a modification, use is made of the circulating current due to terminal voltage difference and its effect on the directional current relays to ensure that two parallel-connected transformers operating independently do not get more than one tap or a predetermined number out of step with each other, Figure (not shown) filed with Provisional Specification cognate 9693/64.
Patent GB-289713-A (GB)
Title: Improvements in and connected with stairs
IPC: E04F11/025
Filed: 1927-10-20
Abstract: 289,713. McDonald, J. Oct. 20, 1927. Stairs.-The springers are formed with grooves E in which the ends of the treads and risers are secured by wedges F, G, and the treads are grooved to receive the upper edges of the risers.
Patent GB-981463-A (GB)
Title: Improvements in or relating to glass grinding or polishing methods
IPC: B24B19/00
Filed: 1962-07-20
Abstract: 981,463. Grinding and polishing. R. J. GUEREAU. July 20, 1962 [July 20, 1961], No. 27992/62. Heading B3D. Glass articles, e.g. laboratory glassware, are ground or polished with the articles and the tool completely immersed in a liquid containing abrasive in suspension. A glass tube 4, to be used as a union, and the tool 1 are immersed in water having emery in suspension stirred by a paddle 5.
Patent GB-450286-A (GB)
Title: Improvements relating to coils for use in high-frequency electrical apparatus
IPC: H01F17/04
Filed: 1935-10-12
Abstract: 450,286. High-frequency transformers ; inductances. STEATIT-MAGNESIA AKT.-GES., 8, Florastrasse, Pankow, Berlin. Oct. 12, 1935, Nos. 28252 and 28253. Convention dates, Oct. 12, 1934. [Class 38 (ii)] [See also Groups XXXVI and XL] In a high-frequency coil having a pot-type or other hollow core b1 made in two parts, the parts are held together by a sleeve c1 of low loss material within which a further core part d1 of high frequency iron is arranged so as to be capable of displacement. The part dl may be in screw-threaded engagement with the sleeve and may be slotted at both ends for adjustment by a screw-driver. A pair of such coils forming an intermediate frequency transformer may be mounted in a common screening casing f either side by side, Fig. 4, or end to end, Fig. 5, the core parts dl, d2 forming balancing means. The two coil units may be adjustably mounted with respect to each other for varying the coupling between them. The coupling may also be varied by providing movable screens of magnetic or non-magnetic or partly magnetic and partly non-magnetic material between the coils. In the arrangement of Fig. 4, a magnetic ring k with a helical upper edge is mounted within a non-magnetic cylinder i surrounding the coil b2, and the coupling between the two coils is varied by rotating the parts i, k so as to vary the proportion of magnetic and non-magnetic material between them. The parallel condensers e associated with the coils are mounted below an insulating base a upon which the coils are mounted.
Patent GB-887655-A (GB)
Title: Improvements in or relating to a method and an apparatus for steaming and ironing clothing having a collar
IPC: D06F71/26
Filed: 1958-09-03
Abstract: 887,655. Ironing-machines. HOFFMAN MASCHINEN A.G. ZURICH. Sept. 3, 1958 [Sept. 25, 1957], No. 28277/58. Class 138 (2). Clothing with a collar is steamed and ironed in an apparatus which stretches and positions the clothing so that the collar and at least a part of the shoulder are ironed between pressing- elements and at least a part of the clothing adjoining the collar and shoulder is stretched and steamed by inflating a permeable sack with steam. The clothing is stretched over a stationary pressing-element 16 and clamped between adjustable plates 23, 25 and 22, 24 secured by springs to levers 28 and 29. The element 16 is attached to a vertical support 15 over which a permeable nylon sack 17 is placed and attached at 18 to a table 14. The shoulder part of the clothing is supported on hinged adjustable shoulder supports 21 operated by a pedal 41. The steaming cycle controlled by a time switch involves feeding steam into sack 17 via tube 35 for a set time, then blowing hot air into the sack from blower 38 via heater 40 which is heated by steam for a predetermined period, and finally blowing in cold air. The ironing operation is manually operated and the pressing is effected between fixed plate 16 and a movable upper press-plate 4 which has a heated matrix 5 into which steam is fed via 6 and a steampermeable cover 7. Steam may also be supplied to plate 16 and after the pressing, air is drawn through plate 16 to cool the clothing. The steaming and pressing may be effected separately, simultaneously or partly overlap.
Patent GB-616919-A (GB)
Title: Improvements in or relating to windows and the like
IPC: E06B3/12
Filed: 1946-09-20
Abstract: 616,919. Windows; glazing. BECKETT, LAYCOCK & WATKINSON, Ltd., and CHAPPELLE, H. Sept. 20, 1946, No. 28309. [Class 20(iii)] A channel to receive a fixed or sliding window panel has the base slotted transversely at intervals as at 12 and each alternate slot is extended, the one, 13, into one side wall and the other, 16, into the opposite side wall to near the free edges of the walls so that the channel can be bent round the corners of the panel. A felt or other lining 19 may be provided.
Patent GB-956572-A (GB)
Title: Sealing means for pistons and piston-rods of hydraulic cylinders
IPC: F16J15/48
Filed: 1960-08-16
Abstract: 956,572. Pistons. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINEN-UND ARMATURENFABRIK KOMM.-GES.]. Aug. 16, 1960 [Jan. 30, 1960], No. 28368/60. Heading F2T. [Also in Division F1] Sealing means for the piston or piston rod of an hydraulic piston and cylinder device comprises an annular chamber in the cylinderengaging surface of the piston or of a bearing member through which the piston-rod passes, the chamber having opposite walls of equal internal and external diameters formed by adjacent surfaces of two constituent parts of the piston or bearing member one of which is axially slidable relative to the other to augment the pressure in the chamber. In Fig. 1 the chambers 3, 4 of the cylinder 2 of an hydropneumatic accumulator are filled with liquid and gas respectively. The piston 1 consists of slidable component parts 5, 6 held by a screw 17 and incorporating an annular chamber 13 filled with a pressure medium and a chamber 14 containing air or gas, packings 9-12 being provided as seals. The pressure medium may be a liquid or a grease introduced into the chamber 13 from the exterior through the cylinder wall, or it may be the liquid in the chamber 4 which is introduced past the packings 11 when the piston part 6 is supported against sliding in the cylinder. In operation, any pressure increase in the chambers 3, 4 leads to a greater pressure increase in the chamber 13 owing to the cross-sectional area of its radial surfaces exposed to fluid pressure being smaller than those of the piston parts 5, 6. In Fig. 2, the piston is made up of a unitary component including parts 22, 22a secured together and defining a chamber 20 between them, and of a component 21 in the form of a bush which co-operates with the parts 22, 22a to provide a second annular chamber 19 communicating with the chamber 20 through a bore 23. The annular chamber 13 may contain liquid or be completely filled with a rubber 0-ring which may be reinforced with P.T.F.E. In Fig. 4, the medium in the chamber 13 is placed under pressure by springs 31 clamped on the piston component 34 by a washer 35 retained against a sleeve 36 by a nut screwing on rod 32 integral with the piston component 33.
Patent GB-736518-A (GB)
Title: Improvements in or relating to vehicle chassis
Inventor: HODKIN DAVID
IPC: B60G7/00
Filed: 1952-11-11
Abstract: In a motor vehicle frame formed of welded tubular members (see Group XXXI) the members may be made of a magnesium alloy containing up to 8 per cent aluminium, 1 per cent zinc and 0.3 per cent manganese, or from one of the alloys containing 0.3 to 0.9 per cent zirconium together with, if desired, 1 to 5 per cent zinc and possibly 0.2 to 3.5 per cent rare earth metals, the balance being magnesium.
Patent GB-275453-A (GB)
Title: Improvements in or relating to bumpers or collision guards for vehicles
IPC: B60R19/26
Filed: 1926-11-11
Abstract: 275,453. Conti, E. Nov. 11, 1926. Wheel-grards; brakes actuated or applied by wheel-guards.-A bumper bar 1 is connected to the vehicle frame by levers 2 pivoted on vertical axes 17, the rear ends of the levers being connected by wires 7 to shock-absorbing devices such as springs housed in casings 11 attached to the vehicle frame. Each set of springs is attached to a rod 9 which passes through the casing and is connected through a spring 12 to a brake, lever 20. A hand-brake lever 27 is connected to a rod 25 by a pin-and-slot 26, the other end of the rod being connected to a lever 30 on a transverse rod 22 connected by levers 21 to both brakes. A transverse bar 20 is connected through levers 19 to both wires 7 so that when one side of the bumper is pressed rearwardly both brakes are applied equally. The shockabsorbing springs comprise two tension springs of unequal strength connected together the weaker spring being acted upon by a collar on the rod 9 during the initial movement of the bumper, the stronger spring being acted upon by another collar as the bumper is moved farther in. The ends 31 of the bumper bar are pivoted at 32.
Patent GB-963680-A (GB)
Title: Process for the manufacture of macroporous filters of plastic material
IPC: B01D39/16
Filed: 1961-08-04
Abstract: 963,680. Making filters. SOC. LE CARBONE LORRAINE. Aug. 4, 1961 [Aug. 18, 1960], No. 28427/61. Heading B5A. [Also in Division B1] ] Macroporous filters made of plastic material, e.g. P.T.F.E., are made by placing at least two superimposed layers of the pre-cooked material in a mould, compressing the layers and then fritting them, each layer comprising grains of substantially equal dimensions and successive layers having an increasing particle size. The plastic material may be placed in a mould by hand or by atomization. Alternatively, the grains of plastic material are projected on to a rotating tubular support 1 by nozzles 3 . . . 6 moving parallel to the axis of the support. Successive nozzles project particles of increasing size. The support 1 may be a fine metallic woven cloth or expanded metal mounted on a mandrel 2. The filter is then placed in a cylindrical mould, compressed and fritted and finally removed from the mould and support.
Patent GB-1268549-A (GB)
Title: Improvements in and relating to dispersion-hardened metals and alloys, and articles made therefrom
Inventor: GOODWIN ROBERT JAMES
IPC: C22C1/10
Filed: 1969-06-05
Abstract: 1,268,549. Producing dispersion-hardened alloys. DELTA METAL (B.W.) Ltd. May 29, 1970 [June 5, 1969], No.28489/69. Heading C7D. A dispersion-hardened metal or alloy is produced by a method including the step of melting particles of the metal or alloy (or a reducible compound thereof) which is to constitute the matrix of the finished product, after the particles have been coated with a compound, whereby particles of dispersoid formed from the latter compound become diffused or dissolved in the matrix material, then solidifying. The solidified particles may be coated with a further charge of the compound forming the dispersoid and remelted and again solidified, the operation being repeated as desired to increase the proportion of dispersoid. The initial matrix material may be a powder comprising one or more reducible oxides of one or more of the metals: Cu, Ni, Fe, Mo, Co, or alloys thereof; the compound forming the dispersoid may be MgO, Al 2 O 3 , CaO, TiO 2 , ZrO 2 , ThO 2  and/or rare earth metal oxides. The melting may be carried out in a furnace, or by carrying the particles entrained in air or oxygen into a flame from a flame (e.g. oxyacetylene) or plasma gun. The melted particles may be rapidly cooled by quenching in water or an inert gas stream. Where the matrix material comprises oxide particles, the cooled particles may be heated in a reducing gas e.g. H 2 , in batches in a furnace, or continuously by falling through successive perforated floors in an enclosure. The reduced particles may be consolidated or compacted into billets by powder metallurgy. For forming a dispersion of MgO in Cu, CuO powder is dampened by a suspension of MgO in water, or a solution of a Mg compound decomposable to the oxide by heating the mixture in a fluidized bed, e.g. Mg methoxide dissolved in methyl alcohol, and the solvent evaporated leaving CuO particles coated with MgO, prior to reduction.
Patent GB-756454-A (GB)
Title: Improvements in or relating to synthetic resinous coating compostions
Filed: 1953-10-15
Abstract: A coating composition comprises an aliphatic hydrocarbon solution of the product of the heat-condensation of (1) a drying oil-modified alkyd resin with (2) a completely hydrolysed siloxanol having a molecular weight below 4,500, an acid number above 5 and containing certain silicon-bonded alkyl and aryl groups in amount of 2 to 3 alkyl and aryl groups for every 2 Si atoms and 1 to 28 alkyl groups for every 8 aryl groups, the weight of the siloxanol constituting 15 to 50 per cent of the condensation product.  The siloxanol is made by hydrolysing a mixture of 1 or more alkyl silanes and 1 or more aryl silanes, in preferance to mixing the hydrolysates of individual silanes.  The alkyl silanes contain 1 or 2 alkyl groups containing 1 to 12 carbon atoms and the aryl silanes contain 1 aryl group containing 6 to 12 carbon atoms and not more than 1 silicon-bonded H atom. The aryl radical, e.g. phenyl, naphthyl or diphenyl, may contain from 1 to 5 substituents, each of which is a fluorine, chlorine or bromine atom or an alkyl group having not more than 6 carbon atoms.  Hydrolysable groups specified are halo, amino, acyloxy, aryloxy and alkoxy, which are progressively more difficult to hydrolyse.  The hydrolysis is effected under acid conditions in water or aqueous acid (HCl, H2SO4 or H3PO4 and desirably in the presence of a solvent, preferably a ketone or monocarboxylic acid ester boiling below 200 DEG  C., e.g. methylisobutyl and methyl amyl ketones and isopropyl and n-butyl acetates.  Many other solvents are specified.  The preferred alkyds have low acid numbers (10 or below) and are aromatic dicarboxylic acid-glycerol polyesters modified with drying oils, e.g. soyabean, linseed, dehydrated castor, poppy, hempseed, tung and safflower oils or the corresponding fatty acids. Preferably a dried solvent solution of the siloxanol is added to the alkyd resin and heated, water formed during the condensation being removed.  In examples, the hydrolysate of ethyl and phenyl trichlorosilanes in xylene or butyl acetate is reacted with a mineral spirit solution of an alkyd resin obtained from a reaction mixture consisting of (1) soya oil, pentaerythritol, phthalic and maleic anhydrides and calcium naphthenate to give a product which on mixing with rutile and Co and Pb naphthenates yields an air-drying varnish; (2) soya fatty acids, pentaerythritol and phthalic and maleic anhydrides; (3) soya oil, glycerol, phthalic and maleic anhydrides, litharge and triphenylphosphite; (4) soya fatty acids, dipentaerythritol and phthalic and maleic anhydrides; (5) soya oil, glycerol, litharge, phthalic and maleic anhydrides and triphenylphosphite.  Specification 583,754, [Group IV], is referred to.
Patent GB-969979-A (GB)
Title: Synthetic organic chemical preservative for beer
IPC: C12H1/00
Filed: 1962-07-25
Abstract: Finished beer is preserved without the necessity of pasteurisation by admixture with a hydrocarbon ester of parahydroxybenzoic acid having the general formula:  <FORM:0969979/A1-A3/1> wherein R is an aliphatic hydrocarbon radical; X is hydrogen, an alkali metal or alkaline earth metal; and n is an integer equal to the valency of X. Proportions of up to 50 parts per million e.g. 10 parts per million, are suitable for those hydrocarbon esters in which the number of carbon atoms in R is at least six; where this number is less than six higher proportions (even up to 500 parts per million) are necessary. Hydrocarbon esters specified in accordance with the formula given above: normal heptyl ester (preferred), the normal methyl, ethyl, propyl, butyl, hexyl, octyl, decyl, dodecyl and eicosane esters or the calcium, sodium or potassium salts of these esters, or mixtures of these; hydrocarbon esters in which R is an ethylenically unsaturated hydrocarbon chain, either linear or branched.  It is stated that the compounds inhibit both bacterial and yeast growth in the beer. The esters are made up in stock solutions with a suitable solvent such as propylene glycol or ethyl alcohol; the alkali metal and alkaline earth metal salts of the esters are made up with water. The term "beer" includes ale, lager, porter, stout and bock beer. Specific examples are disclosed.
Patent GB-1367374-A (GB)
Title: Data programming device particularly for control of knitting machines
IPC: D04B15/66
Filed: 1972-06-19
Abstract: 1367374 Knitting-machines ETUDES ET BONNETERIE SA 19 June 1972 [1 July 1971] 28619/72 Heading D1C [Also in Division G3] A two-plane matrix for the selective control of knitting elements comprises rows containing resistors r which are connected to earth through diodes di-dm and a common resistor Rs. The rows and columns are selected by a control computer, not shown, which changes electronic switches such as 31-33, 21-23 from a U condition, in which the row or column is earthed, to a 1 condition, in which the row or column is isolated. The intersection points of the matrix are programmed by three plugs having characteristics, each representing a pattern colour, a fourth colour being represented by the absence of a plug. The first plug has a diode only and the voltage at a point Vs is at earth potential. The second and third plugs have different values of resistor R the voltage at point Vs then being dependent on the series resistor r and parallel resistors R, Rs. The voltage at point Vs is fed to three discriminators 3, providing 0, 1 binary signals at threshold levels which are interrogated by the computer to control needle selection of the knitting machine.
Patent GB-659724-A (GB)
Title: Improvements in or relating to footwear fitting equipment
IPC: A47G25/84
Filed: 1949-11-08
Abstract: 659,724. Furniture combinations. GEORGE, J. R. Nov. 8, 1949, No. 28660. [Class 52 (iii) ] A combined stool and foot rest for shoe fitting has the sloping foot rest portion arranged as a hinged flap 3 to the interior of which is fitted a mirror 10 by means of side supports 8. Projections on the supports 8 may co-operate with arc-shaped friction pads arranged on the inner faces of the sides 6 of the stool. In addition co-operating snap fasteners may be arranged between the sides 6 and the supports 8. Abutment stops 13 are provided.
Patent GB-1500040-A (GB)
Title: Adjustable mountings
IPC: F16M11/06
Filed: 1975-07-08
Abstract: 1500040 Gauge mountings JAMES NEILL HOLDINGS Ltd 1 July 1976 [8 July 1975] 28708/75 Heading G1M An adjustable mounting for a gauge 2, Fig. 1, comprises an "on" "off" magnetic base 3 supporting a pillar 4 and a slidable clamp 21 containing a rotatable extension 22 adapted to clamp around a stem 5, Fig. 3. The parts 21 and 22 are operated by a wheel 24 and screw 25 which presses 4 and 5 against members 26, 27. The end 6 is pivoted for fine adjustment about a pin 8 by rotating a sleeve 14 having an angled end-face 19, the face being arranged to abut part of the end 6 or a cross bearing member 18 for this purpose. In a modification the face 19 may be plane and engage an angled end to the member 6.
Patent GB-518953-A (GB)
Title: Improvements in or relating to shafts for magneto or dynamo electric machines
IPC: H02K7/00
Filed: 1938-10-04
Abstract: 518,953. Driving dynamos ; resilient drives ; shafts. BOSCH GES., R., (formerly BOSCH AKT.-GES., R.). Oct. 4, 1938, No. 28737. Convention date, Oct. 7, 1937. [Class 35] [Also in Group XXIV] The shaft of a dynamo-electric machine, such as a magneto for motor vehicles or aircraft, comprises a sleeve c carrying the rotary parts of the machine and a resilient driving member such as a torsion shaft e seated within and connected at one end only to the sleeve, the sleeve being formed of a light metal.