baber/WOPTO huggingface dataset:
Patent GB-882415-A (GB)
Title: An improved calculator for fractions
IPC: A41H3/00
Filed: 1960-07-04
Abstract: 882,415. Mechanical calculating-apparatus. GOULTER, V. H. July 4, 1960 [July 2, 1959]. No. 23242/60. Class 106 (1). [Also in Group XX] A proportionating device, more especially for use by dressmakers and tailors, comprises a pair of arms 10, 11 pivoted together at one end of each and each bearing markings of fractions (see Fig. 3), at distances from the pivot corresponding to those fractions of the total length of the arm. Markings for fractions having the same denominator are preferably in a line and of the same colour. The inner edges of the arms are radial to the pivot and have notches 41 to correspond with the fraction graduations. The distance between corresponding notches on the two arms is the marked fraction of the distance between points 43 at the ends of the arms. The outer edges of the arms bear measuring scales and the arm 11 has a further measuring scale separated from the edge scale by a groove 37 in which runs a slide 38 carrying opposed pointers 39. Other measuring scales are marked on the underside of the arms, including a double-length scale for use when the arms are fully opened. A detent 36 may be set to co-operate with notches in the end 12 of the arm 10 so as to hold the arms at various angles to one another, the angles being fractions of 360 degrees as indicated by the markings adjacent to the notches. A scale of angles 49 is marked round the end 13 of the arm 11. A flexible strip 46, Fig. 12, may be detachably secured between the ends of the arms to facilitate the drawing of curves. The ends 12, 13 of the arms are formed with mating annular ridges 16, Fig. 4, and are accurately located by a flanged cylinder 17 also carrying a quadrant 19 to define the axis of rotation. A locking ring 25 engages in the cylinder 17 by means of a bayonet joint and has lugs 27, 28 by which a downward and turning force may be applied against the action of a spring (not shown) frictionally to lock the arm in position.
Patent GB-999382-A (GB)
Title: New substituted tetrazaindene compounds and their uses in photography
Inventor: WILLIAMS LESLIE ALFRED
IPC: C07D487/04
Filed: 1960-11-11
Abstract: The invention comprises compounds of the general formula <FORM:0999382/C2/1> (wherein R1 represents a hydrogen atom or an alkyl, thiol, alkylthio, amino, alkylamino, morpholino or piperidino group and R3 represents a hydrogen atom or an alkyl group), and the preparation thereof by thermal decarboxylation of the corresponding 5-carboxylic acids.  The products are useful for stabilizing light-sensitive silver halide emulsions (see Division G2).
Patent GB-337402-A (GB)
Title: Concentrated fertilizer
IPC: C05B11/08
Filed: 1929-07-30
Abstract: 337,402. Holz, A., and Berdell, T. van D. July 30, 1929. Manures.-A process for the production of a fertilizer consists in decomposing tri-calcium phosphate with mixed sulphuric and hydrochloric acids and separating the insoluble calcium sulphate from the soluble phosphoric acid and calcium chloride. The calcium sulphate is treated with a potassium compound, e.g. potassium hydroxide in the presence of carbon dioxide, preferably under pressure and heat, or with potassium carbonate to convert the calcium sulphate into insoluble calcium carbonate and soluble potassium sulphate. The calcium carbonate is separated and added to the phosphoric acid and calcium chloride solution in the presence of calcium hydroxide whereby insoluble di-calcium phosphate is precipitated. The di-calcium phosphate is separated, washed free from calcium chloride and mixed with the potassium sulphate solution, the mixture concentrated by aeration and then sprayed into a current of warm air to produce a granular mixture. The proportions of potassium sulphate and di-calcium phosphate in the mixture may be varied. The hydrochloric and sulphuric acid mixture may be produced by electrolyzing potassium chloride solution to form chlorine, hydrogen, and potassium hydroxide, and passing the liberated chlorine into water simultaneously with sufficient sulphur dioxide to form sulphuric and hydrochloric acids. The potassium hydroxide produced by the electrolysis may be used in the process and the hydrogen converted into ammonia. Half the ammonia may be oxidized to nitric acid, which is combined with the remaining ammonia to form ammonium nitrate and the ammonium nitrate then added to the fertilizer.
Patent GB-303814-A (GB)
Title: Improvements in or relating to ebonite and the treatment thereof, more particularly ebonite sheets, such as those employed as panels for wireless apparatus
IPC: B29C37/00
Filed: 1927-09-06
Abstract: 303,814. British Hard Rubber Co., Ltd., and Wells, P. E. Sept. 6, 1927. Indiarubber, colouring, ornamenting, and variegating.-Ebonite, for wireless panels and other purposes where it is to be exposed to light, is coated with a layer of synthetic resin whereby it is protected from discolouration due to the action of light. Suitable resins are phenolaldehyde and urea resins. The resin may be applied to the rubber before vulcanization, after partial vulcanization, or, by the application of heat, after complete vulcanization. The resin may be applied as a powder or as a varnish composed of a spirit solution of the resin, the spirit being subsequently evaporated and the resin hardened by heat, with or without pressure. Suitable colours mav be added to the resin and mottled, grained and like effects may be obtained. A matt finish may be obtained by applying a thin film of resin to ebonite having an unpolished surface.
Patent GB-577736-A (GB)
Title: Improvements relating to vehicle wind screen wiper mechanisms
IPC: B60S1/14
Filed: 1944-11-24
Abstract: 577,736. Windscreen wipers. LUCAS, Ltd., J., PURDEN, R. H., and BURFORD, E. S. Nov. 24, 1944, No. 23468. [Class 138 (i)] The wiper arm is driven by an electric motor through a reciprocatory rack m and a toothed wheel g, which drives through a slot and pin connection i, h, a spindle b, having a collar d which drives a toothed wheel f engaging a reciprocatory rack k connected to the wiper arm. When the spindle is moved against the action of a springs, a collar p opens a switch n and stops the motor, and the pin h disengages from the slot i, when by manually rotating the spindle the wipers can be moved into a parking position, the spindle being held in this position by the pin h bearing against a sloping surface on the boss g<1> of the wheel g.
Patent GB-254565-A (GB)
Title: Improvements in and relating to wire mattresses for bedsteads
IPC: A47C23/15
Filed: 1925-09-21
Abstract: 254,565. Wilson, V. N. Sept. 21, 1925. Mattresses. - A spring surface is formed by interlacing transverse and longitudinal spirally wound springs, into the ends of which hooks or eyes, preferably with flanges B<2> thereon, are screwed, in order that connection may be made with holes or studs in or on the framing. The framing may have detachable parts or may rest on the existing mattress frame of a bedstead. Reference has been directed by the Comptroller to Specification. 18456/02, [Class 80, Mechanism &c.].
Patent GB-153741-A (GB)
Title: Improvements in presses of the kind used for cupping or drawing sheet metal
IPC: B21D24/08
Filed: 1919-09-24
Abstract: 153,741. Sharp, F. C. Sept. 24, 1919. Cupping.-In a multiple action press for cupping or drawing sheet metal, two or more pressure members which successively co-operate with the dies to clamp the work during operation, are arranged to receive the gripping pressure, without movement caused bv a source outside the press, by the resistance offered by oil or other liquid to being forced through an opening or valve by the movement of the member or members and the die. In the form shown for performing two drawing operations, a die d<2> with two shaping cavities d<3>, d<4> is secured to a carrier d reciprocated in guides over a fixed ejector d<5> by a crank-shaft c and connecting-rod c<3>. The work is first gripped, by motion of the die, between the die and a pressure ring e, which is carried by a block e<2> sliding in guides and provided with rams e<3> , e<4> sliding in fixed cylinders e<5>, e<6> containing liquid. The gripping pressure is obtained by the resistance offered by the liquid to being forced through openings e<9>, e<10> which are connected to the supply chamber f by passages containing adjustable valves. Non- return inlets valves e', e<8> are provided. In the first operation, the die cavity d<3> co-operates with a punch h carried by a ram h<2> which is capable of sliding in a. cylinder h<3> with a similar opening h<5>, valved passage and non-return valve, but which during this operation is fixed either by closing the valve in the passage or mechanically by a yoke j<2> carried by rods j<3> having rollers j<6> which at this stage engage under segmental flanges j<5> on disks j<4> on the shaft c. When the rollers leave the flanges, the yoke is released and the second operation is performed, the punch acting as a pressure member in the same manner as the ring e. In this operation the cavity d<4> in the die co-operates with a punch i secured to a yoke i<3> fixed to the framing. The block e<2> may be returned against an adjustable stop by the die, a sliding bolt connexion being provided for this purpose, a similar connexion between the block e<2> and pressure member h being also provided. According to the Provisional Specification, the dies may be arranged above the punches &c. The valves also are stated to be operated by hand or automatically. In the form also in which the drawing operations are to be effected, the second and third rings are combined punch and pressure rings, and the first ring may have its liquid resistance momentarily locked so that it may first operate as a blank-cutting punch. Specification 144,406 is referred to.
Patent GB-944268-A (GB)
Title: 6,19-oxido-steroids
IPC: C07J75/00
Filed: 1962-06-19
Abstract: 6b ,19-Oxido-steroids are prepared by treating 6b -hydroxy-10-methyl steroids with an oxidative metal acylate in the presence of iodine and under the influence of a free-radical initiator.  Suitable initiators are azo compounds and peroxides, the former preferably having the formula: <FORM:0944268/C2/1> (wherein R1 and R2 are hydrogen, or R1, R2, R3 and R4 are the same or different alkyl or aralkyl groups, or R1 and R2 and/or R3 and R4 together form a cycloalkyl group). Suitable acylates are lead tetraacylates and silver and mercury acylates, and the reaction may be performed in an organic solvent to which is preferably added a weak base. Steroids of the androstane, pregnane, cholane, cholestane and spirostane series may be used, particularly important being those saturated in ring A and possibly containing a 5-halogen atom.  Examples are given. U.S.A. Specification 3,067,198 is referred to.
Patent GB-1194340-A (GB)
Title: Improvements in or relating to Vehicle Washing Apparatus.
Inventor: GEORGE BRIAN HENRY
IPC: B60S3/06
Filed: 1967-05-20
Abstract: 1,194,340. Vehicle washing apparatus. BEATALL AUTOMATIC CAR WASH Ltd. 9 May, 1968 [20 May, 1967], No. 23537/67. Heading B7J. Vehicle washing apparatus comprise vertical rotatable brushes 11 each carried between arms 14 of a support 15 which is pivoted at 16 to a gantry 10, there being located adjacent each brush a roller 26 rotatable about an axle 27 located between arms 14. The rollers on contacting projections on a vehicle being washed prevent the brushes being tangled thereby. The washing apparatus may also comprise a horizontal counter-balanced brush 18 and the gantry may ride on rails 21. The brushes are rotated by motors 12 and the supports 15 urged towards the position shown in the Figure by rising hinge type assembly 17. The rollers 26 are constituted by a resilient outer skin of rubber or plastics filled with a foamed plastics or rubber.
Patent GB-304172-A (GB)
Title: Improvements in and connected with the revival of the colour of flowers or other patterns on carpets, rugs, mats and such like
IPC: B44C1/00
Filed: 1927-09-08
Abstract: 304,172. Deane, M. E. Sept. 8, 1927. Carpets, floor rugs, and mats. - The faded patterns on carpets. &c. are restored by painting with aniline dyes dissolved in methylated spirits.
Patent GB-200730-A (GB)
Title: Improvements in apparel corsets
IPC: A41C1/08
Filed: 1922-08-31
Abstract: 200,730. Kops, D. Aug. 31, 1922. Corsets.-Corsets have a front section near the front steels of elastic material and an inelastic adjustable tension strap 29 which extends from the waistline to the groin. Associated with the tension strap 29, which is secured to the front steel 26, is an anchor strap 31, the two straps being connected by lacing, which may be adjusted from outside the corset. The elastic front section of the corset may be in three sections a, b, c of different elasticities.
Patent GB-1145028-A (GB)
Title: Device for regulating the speed of driven flat friction wheels which drive the batch rolls in a dye jigger
IPC: D06B3/32
Filed: 1966-05-26
Abstract: 1,145,028. Winding webs. K. YAMASHITA. 26 May, 1966 [31 May, 1965], No. 23752/66. Heading B6B. [Also in Divisions D1, F2 and G3] Batch rolls 5, 6, of a dye jigger are associated with a guide 10 pivotally mounted on shaft 10a and comprising frames 10b having adjustable counter-weight 8a. The fabric 8 passes over a flexible rod lOc and a guide roller 10d in passing from the roll 6 to the roll 5. During the reverse process, the fabric engages the roller 10e instead of the roller 10d. For operation at constant fabric velocity, and tension, winding and unwinding rolls 5, 6, are driven by discs 22, 23, respectively, a friction roller 31 being located between the discs and driven by induction motor 93. The friction roller is adapted to be swung between stops 40, 41, about pivot 29. A connecting rod 42 is mounted between side bearing 32 of the friction roller and a steel yard balance 44, the force due to balance-weight 47 being compared with a force signal which is a function of the sum of the reactive forces due to fabric tension at both contact points of the friction roller. The resultant control force displaces the rod 42 to vary the value of inductor 55 in circuit with servomotor 92 whereby the ratio between the effective radii of the discs 22, 23, is made equal to the ratio between the radii of the rolls 1, 2. The fabric tension is set by means of scale 46 associated with the balance 44. A crank disc 72 guides the discs 22, 23, on slide bases-63, 64 by means of pins 75, 76, having screw-and-nut adjustment through handle 85. A scale 89 indicates the magnitude of the maximum thickness of the wound fabric. The crank disc is also driven by servomotor 92. The reaction exerted upon the bearing 32 due to mechanical loss in the driving mechanism is counteracted by plunger magnets 102, 103, and 111, 112, coupled to springs and balance arms which engage pins on the rod 42. The movable core 56 of inductance 55 is shifted in accordance with a time constant determined by buffer spring 53 and shock absorber 54. The core 56 has a dead range of movement on either side of neutral. An over-voltage relay is connected to the motor 92 which is energized through silicon-controlled rectifiers, so that the electrical power supply is discontinued if the motor speed becomes excessive. The upper and lower windings of the inductance 55 are connected to the centre-tapped secondary windings of a pair of transformers to form phase-shift circuits for gating the two silicon-controlled rectifiers. The servomotor 92 is supplied through these rectifiers and a reversing switch, Fig. 7 (not shown).
Patent GB-307944-A (GB)
Title: Improvements in washing, dyeing, carbonising and otherwise treating textiles
IPC: C11D3/20
Filed: 1927-09-10
Abstract: 307,944. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 10, 1927. Carbonizing fibres.-In processes for carbonizing textiles, cyclohexanone or a homologue thereof is added to the bath to act as a wetting agent. Soaps, turkey-red oil or saponaceous sulphonic acids of aliphatic compounds or salts thereof may also be present. Such saponaceous compounds specified are the sulphonation products of mineral oils, fatty acids or derivatives thereof, brown coal tar oils, or of solar oil. Reference has been directed by the Comptroller to Specifications 252,392, [Class 81 (i), Disinfecting &c.], 261,720; and 267,534, [Class 81 (i), Disinfecting &c.].
Patent GB-185029-A (GB)
Title: Surgical garment
IPC: A61F5/03
Filed: 1921-09-07
Abstract: 185,029. Stuart, F. J. Sept. 7, 1921. Abdominal belts.-An elastic abdominal belt 10, in which the elastic elements are more widely separated at the central portion than adjacent the ends, is provided with non-elastic triangular end-pieces 16 having eyelet holes to receive a lace 17. The top 13 and bottom 12 of the belt are stiffened and a non-elastic adjusting drawstring 14 is threaded through the top stiffening. Leg-pieces 19 shaped and braided at 20 to engage the crutch are attached to the lower part of the belt, extra stiffening material, 22, 23 being provided at the front between the two leg members. Fig. 1 shows the front of the belt and Fig. 2 the rear.
Patent GB-1035089-A (GB)
Title: Improvements relating to methods of manufacturing masks
IPC: H01L21/00
Filed: 1965-06-04
Abstract: 1,035,089. Masking methods. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 4, 1965 [June 9, 1964], No. 23904/65. Heading H1K. When a body such as a gallium arsenide crystal is coated with a substance of different thermal expansion coefficient such as silicon dioxide, rapid heating of the coated body produces cracks in the coating and these cracks tend to be orientated parallel to the grain of the body: in the case of a crystal whose surface plane is in the 111 direction the cracks are in the 112 direction (Fig. 1, not shown). This property provides a technique for masking such a body, e.g. to allow deposition of a set of parallel narrow strips of material on to a semiconductor body. In Figs. 2 and 3 (not shown) a gallium arsenide crystal 1 has its surface coated with silicon dioxide 2 and narrow channels 3, parallel to the grain of the underlying crystal, are cut in the oxide surface to about half its depth. On heating, cracks 5 form preferentially in these channels and break through to the semi-conductor surface. Typically the oxide coating is 10,000  thick, the channels 5000  deep and the cracks 0À1 Á wide. As an alternative to forming channels in the oxide, the latter may be covered with a layer of another material weakened-by thinning or cutting through-at the sites selected for preferential development of cracks in the oxide. It is also possible to control the location of these cracks by electric, magnetic or mechanical forces acting on the semi-conductor crystal during the heating, these forces may be oscillatory and such as to set up standing waves in the crystal. Fig. 4 (not shown) depicts an N-type crystal, masked by the above method, provided with a PN junction by epitaxial deposition of P-type material through one of the cracks. Fig. 5 (not shown) depicts an apparatus in which the coated crystal is first heated to produce the cracks and then exposed to the vapour of the substance to be epitaxially deposited through the cracks.
Patent GB-674990-A (GB)
Title: Glass furnace
IPC: C03B5/03
Filed: 1949-09-17
Abstract: 674,990. Glass manufacture. GLASS FIBERS, Inc. Sept. 17, 1949 [Oct. 30, 1948], No. 23985/49. Class 56. [Also in Groups XI and XII] In the manufacture of glass the glass making materials are introduced into one end of the tank 2 and melted and heated on the surface by heat from combustion above the surface, and the lower stratum of the melted glass is heated by means of electric currents flowing in the glass, the current being controlled to maintain a small temperature gradient with the temperature of the lower strata less than the temperature of the upper strata, and the molten glass is extracted from the other end of the tank. The electrodes 8 are mounted in the side walls of the tank below the mid-depth of the melted material, and the discharge opening extends from above the level of the electrodes to a level beneath the surface of the molten glass. The raw materials are introduced through the opening 3 in the tank enclosure 1 and heated by gas, or vaporised oil mixed with air, from burners 4, the exhaust passing through the opening 5 to the chimney 6. The lower stratum of the molten glass 7 is heated by currents passing through the evenly spaced electrodes 8 which are preferably of molybdenum and water cooled. The glass passes through the shallow gate 9 to the forehearth 10, and is discharged through the opening 11. The forehearth has a cover 12 and skimmer block 13. Electrical power is fed through leads 15 to the primary winding 16 of transformer 17, the secondary winding 18 of which is connected through leads 19, 21 and branch leads 20, 22 to the electrodes 8. The current is controlled by varying the voltage for which taps 23 are provided. If the decrease in resistance of the glass with an increase in temperature is sufficient to cause instability an impedence 24, which may be an inductive reactor with or without a saturable core, may be included in a lead to the furnace on the primary or secondary side of the transformer. Further control may be exercised by including reactors or resistors in the leads to the individual electrodes. The reactor 24 serves to limit the current flow if the resistance decreases.
Patent GB-408229-A (GB)
Title: Improvements relating to the production of liquid fuels
IPC: C10L1/18
Filed: 1932-08-29
Abstract: Liquid hydrocarbon fuels for internal-combustion engines are stabilized against formation of gum by incorporating therein a dihydric or trihydric phenol such as catechol, hydroquinone or pyrogallol in relatively small proportion, e.g. 0.005--1 per cent by weight, as a solution in cresol.  A 5--15 per cent solution of the dihydric or trihydric phenol in the cresol may be employed. The fuel may first be distilled into a light and a heavy fraction which are separately refined by known methods, the gumstabilizing agent being added to the light fraction and the fractions being mixed together.
Patent GB-261149-A (GB)
Title: Improved means for playing games
IPC: A63D15/00
Filed: 1925-09-28
Abstract: 261,149. Berry, W., Sept. 28, 1925. Table games. - A board for use in a game played with cues and balls has a boundary wall b and a central spindle c supporting a rotatable cap d with radiating arms e from which balls f are suspended; the cue ball is played from within circular marks i so as to cannon off a suspended ball and knock down coloured skittle-like figures g or enter pockets or cavities along the sides of the board. Wedge-shaped strips h behind the dummy figures prevent the balls returning to the board when they have passed beyond the figures. Scoring devices j may be placed on the walls of the table. Specification 17343/03 is referred to.