baber/WOPTO huggingface dataset:
Patent GB-423043-A (GB)
Title: Improvements in the manufacture of portland cement
IPC: C04B7/40
Filed: 1933-07-24
Abstract: In the manufacture of Portland cement, the calcareous material is ground in a dry or substantially dry state, the clay is ground wet, water being added if necessary, and the two ground materials are admixed before burning.
Patent GB-585756-A (GB)
Title: Improvements in or relating to lapping or grinding machines
IPC: B24B7/17
Filed: 1944-10-26
Abstract: 585,756. Grinding and polishing. ARMSTRONG, W. Oct. 26, 1944, No. 20841. [Class 60] A machine for lapping or grinding piston rings &c. on both flat faces simultaneously comprises two coaxia grinding discs 1 driven in the same direction and having flat opera tive faces, spaced apart to receive the work 2; the discs have annular faces with central recesses. The work 2 is supported by rollers &c. 8 mounted on a holder 5, which is adjustable vertically and horizontally on a slide 7. The discs 1 are carried by slides 9 adjustable to suit the thickness of the work and to take up wear.
Patent GB-622118-A (GB)
Title: Improvements in the electrolytic polishing of metals
IPC: C25F3/22
Filed: 1946-09-12
Abstract: 622,118. Electrolytic polishing. CHARLESWORTH, P. A. Sept. 12, 1946, No. 20865. [Class 41] A method of polishing anodically stainless steel and analogous ferrous base alloys and nickel and its alloys employs an electrolyte containing sulphuric acid with or without phosphoric acid, and a relatively small amount of an additive consisting of an aromatic amino compound or compounds. Examples of additives are aniline or a homologue thereof, methylaniline, toluidine and acetotoluidine. Preferably, the acid concentration is between 50 and 80 per cent by weight of the solution, the ratio of sulphuric acid to phosphoric acid is greater than 5 to 3, and the amount of addition is between 0.3 and 5 per cent by weight of the electrolyte. Specification 526,854 is referred to.
Patent GB-785350-A (GB)
Title: Method of separating nickel and cobalt
IPC: C01G53/00
Filed: 1955-07-19
Abstract: A mixture of hydroxides of nickel and cobalt at least a portion of which are divalent are oxidized in aqueous medium to the trivalent state and nickel extracted with an aqueous liquor containing chlorine.  To avoid loss, the oxidation is preferably carried out with only sufficient medium to produce a slurry, paste or foam. Suitable oxidizing agents are aqueous solutions of chlorates and hypochlorites, and the reaction is preferably carried out at room temperature although higher temperatures, e.g. 40 DEG  to 50 DEG  C., may be employed: the preferred oxidizing agent is aqueous chlorine with which the temperature used should not exceed 100 DEG  C.  After oxidation the hydroxides are filtered or centrifuged and treated with the liquor, preferably saturated with chlorine, and desirably containing a salt which permits the solution to hold more chlorine such as the chloride of a metal, e.g. sodium or calcium, of which the hydroxide is soluble. Temperature of 50 DEG  to 100 DEG  C., preferably 90 DEG  to 95 DEG  C., are preferred.  Examples are given.
Patent GB-121607-A (GB)
Title: Improved Cold Drawing of Metals by Rolling.
Inventor: EMON PAUL FERDINAND
IPC: B21B1/16
Filed: 1918-12-14
Abstract: 121,607. Emon, P. F. Dec. 18, 1917, [Convention date]. Rolling; drawing.-Metal rods &c. are reduced in diameter, or are altered in shape by drawing them in the cold between pairs of horizontal and vertical rollers working on the same line, the rollers being freely mounted in adjustable slides in a steel cage A which may be secured on a draw bench, the work being drawn by means of drums provided with grippers. As shown, the rod to he shaped is fed into a guide J and is drawn past rolls C, D, mounted in slides B adjustable by screws H. To remove burr from the edges of rounded bars, they are then drawn past a pair o: grooved rollers K, Figs. 1 and 4, adjustable mounted in an auxiliary frame F which may be secured by means of studs G to the cage A. Ir the case of rods of rectangular section the shap ing may be completed by drawing through t rectangular hole 0 in a plate M, Fig. 9, which œ attached by the studs G to the cage A in placf of the frame F.
Patent GB-369847-A (GB)
Title: Device for conveying liquids to the vertically movable discs in disc-type gas-holders
IPC: F17B1/04
Filed: 1931-07-22
Abstract: 369,847. Gas sholders. BAMAGMEGUIN AKT.-GES., 10, Reuchlinstrasse, Berlin. July 22, 1931, No. 20970. Convention date, May 18, 1931. [Class 54.] In a gas holder fitted with a vertically moving disc 2 liquid is conveyed to the edge of the disc from a container 10 through a tube 6 which can swing about the vertical axis of the disc in a stuffing-box 11 and is connected to a flexible hose 1. The lower end of the hose 1 rests in a receiver 3 on the disc. As the disc rises or falls the hose 1 is laid evenly in or lifted from the receiver, the free end of the tube 6 moving so as always to be approximately above the point of contact of the hose with the receiver. The swinging end of the tube 6 is preferably guided by rollers 8 engaging a circular rail 9 at the top of the holder. In order to avoid stresses in the hose the tube 6 may be operated from the disc through rope gearing.
Patent GB-1063341-A (GB)
Title: Navigational encoder apparatus
IPC: G01S13/76
Filed: 1964-05-21
Abstract: 1,063,341. Electric selective signalling. KOLLSMAN INSTRUMENT CORPORATION. May 21, 1964 [June 24, 1963], No. 21071/64. Heading G4H. In a follow-up arrangement, movement of first contact means (C) with respect to contact means (A, B) carried by an encoder disc (40) causes a servomotor (60) to drive the disc to follow the first contact means (C). An aneroid altimeter (10) in an aircraft rotates a shaft (20) carrying the first contact (C) to close with one of two contacts (A, B) to energize the motor (60) such that it drives the disc (40) in such a direction that the contact is broken. Coded signals obtained from sensing the disc are radioed to ground on receipt of a command.
Patent GB-499798-A (GB)
Title: Manufacture of molecular compounds
IPC: C07D307/62
Filed: 1937-07-30
Abstract: Molecular compounds of ascorbic acid or iso-ascorbic acid and quinine are prepared by melting the components together, or by dissolving them in a solvent and precipitating the product, or by double decomposition of their salts in solution.  For preserving purposes, an excess of the acid may be used.  The products, which are readily water-soluble, are useful therapeutically.  Examples are given in which the preparation is effected in an atmosphere of nitrogen. Specification 469,335 is referred to.  The Specification as open to inspection under Sect. 91 also describes the use of quinidine and states that ascorbic and iso-ascorbic acids are capable of forming salts with both quinine and quinidine in the molecular proportions of 1 : 1 and 2 : 1. Two further examples are given.  This subject-matter does not appear in the Specification as accepted.
Patent GB-838766-A (GB)
Title: A process for the production of polyhydric alcohol mixtures by degradative hydrogenation of sugars
Filed: 1958-07-02
Abstract: A crude solution of sugars obtained from the mineral acid hydrolysis of cellulose and/or hemicellulose present in cellulosic material is catalytically hydrogenated at a temperature of 100-160 DEG  C. while the solution is maintained at a pH of at least 8 to give polyhydric alcohols having less carbon atoms than the original sugars. Preferably starting solutions are used in which the polymeric sugars have been degraded into monomeric sugars, e.g. pentoses and hexoses, and from which the residual acid has been removed by distillation. Suitable alkalis for maintaining the pH at the required value are lime water, magnesia, sodium carbonate and trimethylamine and these may be added continuously or otherwise.  Preferred catalysts are active nickel catalysts precipitated on to active substances, such as active carbon and kieselguhr.  The alcohol mixtures obtained may be further purified by ion exchange reactions.  In the examples: (a) a sugar mixture obtained by the acid hydrolysis of hardwood is catalytically hydrogenated to give ethylene and propylene glycols, glycerin, methyl glycerin, with sorbitol, mannitol, xylitol and erythritol; and (b) a sugar mixture obtained by the acid hydrolysis of beechwood is catalytically hydrogenated to give ethylene and propylene glycols, glycerin and methyl glycerin along with some sorbitol, mannitol, xylitol and erythritol.
Patent GB-577190-A (GB)
Title: Improvements in aircraft stabilising means
IPC: B64C1/00
Filed: 1943-12-18
Abstract: 577,190. Controlling aircraft. MILES AIRCRAFT, Ltd., and MILES, G. H. Dec. 18, 1943, Nos. 21261 and -25372. [Class 4] A movable diaphragm 8, dividing the leading portion of an aircraft wing into two compartments communicating with the outside air through one or more openings 4, 5, is connected by a lever 11 and link 13, 15 with a flap 3 or other control surface so that the latter is displaced in accordance with variations of speed and/or angle of incidence of the wing which cause variations of pressure at the openings 4, 5. A jack 14 in the link 13, 15 enables manual adjustment of the flap 3 to be made. The diaphragm 8 is mounted on a shaft 9 and has a flexible front portion 8a. A tail plane or pin may be similarly ntted. In another form the diaphragm 8 is divided into a number of sections working in separate chambers but mounted on a common shaft. Each chamber has upper and lower openings controlled by sliding valves operated by the pilot. The invention is particularly adapted for aircraft of the tail-less and tail-first types, Specification 563,467 being referred to. The first Provisional Specification refers to Registered Designs Nos. 840,904, 840,905, and 840,402 as relating to aircraft of the tail-less, tail-first or Libellula type.
Patent GB-574415-A (GB)
Title: Improved means for controlling the motion of gun mountings
IPC: F41A27/28
Filed: 1939-07-24
Abstract: 574,415. Controlling gun mountings. BOULTON PAUL AIRCRAFT, Ltd., DOE, A., and HOLMES, R. July 24, 1939, No. 21397. [Class 92 (i)] Relates to endangering prevention apparatus for gun mountings on vehicles, especially aircraft and particularly mountings in which the training motor 1 and the elevating ram or motor 5 are controlled by the gunner through a correspondence contr.ol lever 8 and a pump unit 4. According to the invention, overriding control means for each motor is provided in the form of cams or electric contact screens 11, 10 shaped to suit the obstructions and engaged by followers 12 as the gun is moved. Further, the azimuth cam 11 operates on a valve or switch 17 to cut off the power to the motor 1, and the elevation cam 10 acts on a valve or switch 19 to reverse the elevation motor. The follower 12 is made readily removable from the elevation cam 10 by Bowden or like control from the lever 8 to render the elevation over-riding control inoperative when the gun is moved in elevation by the gunner in a direction to avoid fouling. In the form shown, the cams 10, 11 are provided on a drum 9 rotating synchronously with the gun turret and the followers 12 are slidable on guides 16 by connections 20 to suit the gun elevation.
Patent GB-757268-A (GB)
Title: Fuel-injection engines
IPC: F02B19/14
Filed: 1954-07-23
Abstract: 757,268. Pre-combustion chambers. SANDERS, A. F. Feb. 24, 1955 [July 23, 1954], No. 21513/54. Class 7(3) In a fuel-injection engine having an injection cavity 16 beyond the end of the cylinder bore and communicating through a ductless opening 24 with 'a reception cavity 17 arranged laterally outside the cylindrical wall of the cylinder bore but communicating with the latter, the injection cavity is generally in the shape of an oblate sphere, the mean injection axis being along an equatorial diameter whilst a portion of the sphere is truncated by a chordwise plane perpendicular to the equatorial plane the truncation defining the ductless opening. The reception cavity 17 is circular or crescent shaped and the injection cavity 16 with a fuel nozzle 19, is formed in a two-part block 20 held in the cylinder head 22 by a nut 23. The upper part of the cylinder 25 is cut away 26 to receive the floor of the cavity 17 whilst the opening between the two cavities is circular with a diameter not exceeding that of the nozzle opening 18; the distance between the parallel side walls of the cavity 16 may also be equal to that of the opening 18. The reception cavity 17 is partly overhung by a lip 28 round the truncated end of the cavity 16; the side walls of the injection cavity need not be parallel. Specification 531,075 is referred to.
Patent GB-124169-A (GB)
Title: Improvements in and relating to Reversible Hats, Caps and the like.
Inventor: KOPKIN MAX ISRAEL
IPC: A42B1/24
Filed: 1918-12-23
Abstract: 124,169. Kopkin, M. I. Dec. 23, 1918. Caps; felt and like hats; sweat bands; ventilating; reversible; with double crowns.-The crown of a hat or cap which can be turned inside out so as to form a reversible head covering is formed of two layers, one a of oiled silk or the like, the other b of ordinary flexible material, united together by stitching. Two non-absorbent sweatbands d, e are connected by eyelets g on either side of the hat, and each may be provided with bows f or similar ornaments. The sweat-bands and bows prevent the fabric of the crown from becoming soiled by contact with the head. The eyelets act as ventilators and also allow of the insertion of hat pins. In ordinary weather, the fabric b is outside, in wet weather the fabric a is worn outwards.
Patent GB-1209006-A (GB)
Title: Disazo dyestuffs
Inventor: HARNISCH HORST
IPC: C09B69/04
Filed: 1969-04-28
Abstract: 1,209,006. Salts of disazo dyestuffs. FARBENFABRIKEN BAYER A.G. 28 April, 1969 [9 May, 1968], No. 21567/69. Heading C4P. [Also in Division C3] Novel dyestuffs of the formula (where R is H or C 1-4  straight-chain alkyl) are prepared from 1 mole of the parent disulphonic acid or an alkali metal salt thereof and 2 moles of the required amine. They are particularly suitable for the bulk colouring of lacquers and plastics, particularly polypropylene, giving brilliant red shades.
Patent GB-1077945-A (GB)
Title: Circuit arrangement for suppressing the switch-on buzzing noise in television receivers
IPC: H04N5/50
Filed: 1965-05-21
Abstract: 1,077,945. Muting. STANDARD TELEPHONES & CABLES Ltd. (Standard Elektrik Lorenz A.G.). May 21, 1965. No. 21599/65. Heading H3Q. In a television receiver the sound channel is muted during the warm-up period by applying to the grid of an audio amplifier V1 a negative potential derived from diode V2, which is fed with line-deflection signals via capacitor C2. When the horizontal deflection output valve is fully warmed up the booster voltage is fed over resistor R2 to suppress rectification in the diode V2; alternatively a potential may be derived from a potentiometer circuit including a resistor with a negative temperature coefficient. The Specification also refers to the use of the suppressor grid of an amplifier valve as the diode V2, in which case the valve may comprise an audio amplifier blocked by the potential developed on the suppressor grid.
Patent GB-1378709-A (GB)
Title: Gasoline additive
IPC: C08F8/30
Filed: 1973-05-10
Abstract: 1378709 Polyolefin derivatives BRITISH PETROLEUM CO Ltd 10 May 1973 [10 May 1972] 21797/72 Heading C3P [Also in Divisions C4-C5] Compounds of formula where R is an alkenyl group derived from a polyolefin, R<SP>2</SP> is a C 1-10  alkylene group, R<SP>3</SP> is hydrogen or C 1-20  alkyl, one of A and B is -CN and the other is hydrogen, may be prepared by reacting a 1,2-dihalopropionitrile with a diamine of formula H 2 NR<SP>2</SP>N(R<SP>3</SP>) 2  and reacting the product with an alkenyl halide RX where X is halogen. The polyolefin may be a polymer of ethylene, propylene, isobutylene or 4-methylpentene-1, particularly polyisobutylene. The nitrile may be dibromopropionitrile, which may be reacting with alkali, e.g. sodium or potassium hydroxide,- before reacting with the amine, preferably in the presence of an alkali carbonate, e.g. sodium carbonate. The products may be used as detergent additives in gasolines. In an example α,#-dibromopropionitrile is reacted with sodium hydroxide, N,N-dimethylpropylenediamine and polyisobutenyl chloride.
Patent GB-813487-A (GB)
Title: A new or improved article of clothing
IPC: A41D1/04
Filed: 1956-07-14
Abstract: 813,487. Shoulder-supported garments. HUGES, I. W. June 3, 1957 [July 14, 1956], No. 21839/56. Class 141 A shoulder-supported garment comprises front and back panels 1, 2 releasably connected together over both shoulders and at the waist, and at least one skirt portion 5 releasably connected by press studs &c. to the lower edge of either the front or back panel. The garment preferably has two skirt portions 5, 6. The shoulder connections may consist of buttons 4 and co-operating loops or buttonholes, or press studs or sliding clasp fasteners. At the waist a belt 7 is secured to both panels 1, 2, its free ends being connected by a buckle 8. Alternatively, the panels may be connected at the waist by buttons and buttonholes or by tie members. The neck opening 3 is of rounded, V- or square form, and a collar may be permanently or detachably secured to it. The garment may be made from knitted wool, cotton or synthetic fibres, possibly rendered waterproof, or from leather, felt, fur or synthetic plastic material, and may be decorated with sequins, lace, embroidery trimmings or applique. According to the Provisional Specification, the panels 1, 2 may be permanently connected over one shoulder.
Patent GB-790012-A (GB)
Title: Improvements in or relating to pulse translating circuits
Inventor: FRANKLIN ERNEST
IPC: H03K17/80
Filed: 1955-07-29
Abstract: 790,012. Circuits employing bi-stable magnetic elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 25, 1956 [July 29, 1955], No. 21911/55. Class 40 (4). A pulse translating circuit comprising a pair of transformers with cores T<SP>1</SP>, T<SP>2</SP> made of material having a high remanence produces output pulses of alternately positive and negative polarity in response to input pulses of random polarity. The primary windings P<SP>1</SP>, P<SP>2</SP> are connected in series opposition and the secondary windings S<SP>1</SP>, S<SP>2</SP> are connected in series aiding relation across a condenser C. If the cores are magnetized in the same direction, as at a, a pulse of either polarity reverses the magnetic polarity in one core as at band charges the condenser C. As the condenser discharges, the polarity of the other core is also reversed as at c. The next pulse charges condenser C and a charge of opposite polarity. The output pulses across the condenser terminals are alternately positive and negative.
Patent GB-505646-A (GB)
Title: Improvements in or relating to low-frequency amplifiers with negative retroaction
IPC: H03G7/04
Filed: 1937-08-09
Abstract: 505,646. Automatic volume control. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 9, 1937, No. 21916. Void. Convention date, Aug. 11, 1936. [Class 40 (v)] Volume range expansion is effected, by means of an automatic adjustment of the effectiveness of the negative feed-back path of an amplifier. This is done in some arrangements by including in the feed-back path an impedance having a non-linear voltage current characteristic, e.g. a resistance with high positive or negative temperature coefficients. In one arrangement, Fig. 2 (not shown), a lamp with a positive temperature coefficient is connected in series in the feed back circuit which also includes adjusting resistances. In another arrangement, Fig. 4 (not shown), the feed-back voltages are developed across a circuit comprising a resistance with a negative temperature coefficient. As shown in Fig. 3, the feed backpath includes a reactance 17, which may be inductive or capacitative, shunted by a large electrolytic condenser 16 in series with a resistance 14 having a positive temperature coefficient. At high levels the frequency characteristic of the feed-back path is dependent mainly on the impedance 17 whereas at low levels the impedance 17 is effectively shunted by condenser 16 to emphasize the low frequencies. An, alternative tone-correcting arrangement comprises an impedance designed to act as a resistance at the middle frequencies and as a reactance at high and low frequencies in place of the resistance 6. In another arrangement, Fig. 1, the feed-back path includes an amplifying valve 3 the gain of which is adjusted in accordance with signal strength with the help of a diode using the same cathode and producing a bias voltage by rectifying signals fed to it over a condenser 9. The feed-back voltages are developed across resistance 6.
Patent GB-436611-A (GB)
Title: Improvements relating to carboard boxes or cartons
IPC: B65D5/22
Filed: 1934-07-27
Abstract: 436,611. Cartons. BOXFOLDIA, Ltd., Dale Road, Bournbrook, and HARRIS, T. R., 78, Lottie Road, Selly Oak, both in Birming- ham. July 27, 1934, No. 21967. [Class 18] A carton &c. is made from the blank shown, panel a forming the bottom, panels a<1>-a<4> the side walls, extensions a<5>, a<6>, interlocking at a<7>, a<8>, lying within the wall a<2> and further extensions a<9>, a<10>, a<13>, a<14> lying within the walls a<1>, a<3>. Specification 355,560 is referred to.
Patent GB-711070-A (GB)
Title: Apparatus for the construction of soft toys
IPC: D05B39/00
Filed: 1951-09-19
Abstract: 711,070. Toys. BATCHELAR, M. T. Nov. 19. 1952 [Sept. 19, 1951], No. 21972/51. Class 132(3) In making soft toys, a piece of fabric 1 (e.g. canvas, hessian, sailcloth) having roughly the outline of the side elevation of the toy is detachably secured to a frame member 6 overlapping round the edge of the fabric to a varying extent according to the local thickness reauired. Wool is threaded over the frame member and through the fabric, working along the spiral line 2 from the outside, until the fabric is filled up, when the wool is cut round the edge and the frame member removed leaving the finished toy. The frame member may have slits 8 through which paper fasteners, string or tape are passed to hold the fabric, or the fabric may be sandwiched between two frame members and held by loops of thread. The edge of the fabric may be overstitched with the wool and may have a portion of a different colour to represent the nose. A. portion or portions 3 of the fabric may be sewn with a different colour to represent the eyes, nose and mouth. A small slit 4 may be formed in the head through which ears may be passed after stitching.
Patent GB-1308648-A (GB)
Title: Valves for fluids
IPC: F16K1/36
Filed: 1970-05-07
Abstract: 1308648 Valves WHITEY RESEARCH TOOL CO 7 May 1970 [7 May 1969] 21976/70 Heading F2V The end face of a rotary screw-threaded stem 22 of a lift valve has a sealing ring 46 placed in a recess between two concentric rims which are deformed over to secure the ring in the recess. The ring 46 co-operates with an upstanding seat 18 which is of a smaller dimension than the recess in a direction parallel to the stem. A surface 58 on the head of the stem co-operates with an abutment 60 to limit flow into the threads, when the valve is open. In a modification a graduating plug is secured in the central recess 52 of the stem, and has a shoulder which overlies the radial inner portion of the sealing ring. Polytetrafluoroethylene, polymonochlorotrifluoroethylene, soft metals or rubber may be used for the ring.