baber/WOPTO huggingface dataset:
Patent GB-655502-A (GB)
Title: Improvements in or relating to toy guns
IPC: A63H5/04
Filed: 1948-07-07
Abstract: 655,502. Toy guns. BERGER, S. I. July 7, 1948 No. 18250. [Class 132 (iii)] A toy machine gun is provided with a spring motor 21 and associated gearing disposed in the body 10 of the gun, the said gearing including a crown gear 30, which, through a rod 45 with end pinions 51, 53, rotates an abrasive wheel 35 upon which rides a pyrophoric tip or flint 36 secured within the gun muzzle 16, and a gear 31, which is mounted on a shaft 32 carrying a ratchet wheel 33 adapted to actuate a clatter producing member 54 in the form of a short spring-steel leaf. The shaft 32 is also fitted with a cam 34 for reciprocating a shell feed simulating member comprising a slide plate 59 located directly under the top wall of the gun body 10, the plate 59 being suitably lithographed in the region of a window 62 in the gun wall and also provided with an end heel piece 64, to coact with said cam 34, and a return spring 65. The motor 21 is normally restrained by a brake comprising a pivoted pawl 66 having a tongue 68 which meshes with the pinion 51 under the influence of a flexed wire 69, the latter extending from the pawl 66, to the back wall of the body 10 through an intermediate trigger 71 in such a manner that movement of said trigger will release the pawl 66 and motor 21 and effect operation of the gun.
Patent GB-1274390-A (GB)
Title: Improved milk powders
Inventor: DAVIDSON ERIC
IPC: A23C9/16
Filed: 1970-04-16
Abstract: 1,274,390. Milk powders. SCOTTISH AGRICULTURAL INDUSTRIES Ltd. 19 April, 1971 [16 April, 1970], No. 18257/70. Heading A2B. A powdered milk product which is readily dispersible in and suitable for use in automatic milk reconstituting and dispensing machines, comprises a dried milk powder having a fat content of at least 10% by wt. substantially homogeneously mixed with at least one vegetable oil in an amount of 0.5 to 4.0% by wt. of the mixture. The dried milk powder may comprise skimmed milk, whole milk and/or filled milk powders. The milk powder may also comprise whey powder, vitamins and minerals. The milk powder may be obtained by adding a fat (e.g. corn, groundnut, soya or palm oil, beef tallow or lard) to liquid milk prior to drying. The vegetable oil may be corn, ground nut, olive, coconut, soya or palm oil. The vegetable oil may be sprayed on the milk powder undergoing agitation. The product may be fed to animals.
Patent GB-1146404-A (GB)
Title: Dispersion polymerization process
IPC: C08F14/26
Filed: 1967-04-21
Abstract: 1,146,404. Tetrafluoroethylene polymers. E. I. DU PONT DE NEMOURS & CO. 21 April, 1967 [25 April, 1966], No. 18467/67. Heading C3P. Tetrafluoroethylene is polymerized in aqueous dispersion by regulating the addition of at least one dispersing agent such that at least 0À0001 weight per cent, based on the water present, of dispersing agent is present before 2 wt. per cent, based on the dispersion, of polymer solids are formed and such that the average concentration of dispersing agent is 0À0002-0À05% when averaged over the period in which the polymer solids concentration is 0-4%, provided that in this initial stage the amount of dispersing agent composed of a non-ionic hydrophilic portion and hydrocarbon hydrophobic portion is not more than 0À0004%, continuing this regulated addition such that the average concentration of dispersing agent is above 0À05% during the period when the polymer solids concentration is above 10% and recovering an aq. dispersion containing at least 20% of tetrafluoroethylene polymer solids. Hexafluoropropylene may be used as a comonomer. The dispersing agent may be ammonium 3,6-dioxa-2,5-di-(trifluoromethyl) - undecafluorononanoate, ammonium perfluorooctanoate ammonium omega-hydrohexadecafluorononanoate or sodium lauryl sulphate and this agent may be added in the initial stage of polymerization to be followed by chlorendic acid. The polymerization mixture may also contain paraffin wax, iron powder, disuccinic acid peroxide and ammonium persulphate. The aq. dispersion of polymer may be cooled, the paraffin wax removed, diluted and treated with aq. ammonium hydroxide and coagulated.
Patent GB-1047657-A (GB)
Title: Improvements in or relating to multi-block panels for mosaic flooring
Inventor: STILWELL MICHAEL CLIFFORD
IPC: E04F15/08
Filed: 1964-05-04
Abstract: 1,047,657. Laminates. MARLEY TILE CO. Ltd. May 3, 1965 [May 4, 1964], No. 18470/64. Heading B5N. [Also in Division E1] In a prefabricated mosaic flooring panel comprising a number of small wooden or other blocks 2 secured to a felt or other thin backing by adhesive, nails or staples, the backing is divided longitudinally and transversely into a large number of separate pieces 4 to avoid shrinkage of the panel with changes in humidity and temperature. The divisions are preferably made by first applying a single large backing sheet and then cutting it along lines parallel or inclined to the sides of the panel. In a modification the cuts are replaced by wider grooves so that when the panel is adhered to a sub-floor the adhesive penetrates the grooves and makes direct contact with part of each block.
Patent GB-707590-A (GB)
Title: 4-thioureido-2-hydroxybenzoic acids
Filed: 1951-08-03
Abstract: The invention comprises 4-thioureido-2-hydroxybenzoic acids and their alkali salts of the formula <FORM:0707590/IV (b)/1> in which R1 is hydrogen or an organic radical and R2 is hydrogen or a lower alkyl radical.  They may be prepared by reacting 4-amino-2-hydroxybenzoic acid with thiocyanates; by converting 4-amino-2-hydroxybenzoic acid to ammonium dithiocarbamate by reaction with carbon disulphide and ammonia, and then splitting off hydrogen sulphide with lead oxide, lead carbonate or mercury salts; by converting 4-amino-2-hydroxybenzoic acid into the 3-hydroxy-4-carboxyphenylcyanamide by means of cyanogen chloride or bromide, and then adding hydrogen sulphide; by reacting the isothiocyanate (obtained from 4-amino-2-hydroxybenzoic acid by the process of Specification 707,589) with ammonia or primary or secondary amines or di- or polyamines, including amino-alcohols, amino-carboxylic and sulphonic acids, and hydrazines; by reacting 4-amino-2-hydroxybenzoic acid with isothiocyanates; or by the reaction of phosgene or carbon disulphide with an alkaline solution of 4-amino-2-hydroxybenzoic acid.  Examples are given of the preparation of (1) 4-thioureido-2-hydroxybenzoic acid from 3-hydroxy-4-carboxyphenyl isothiocyanate and ammonia; (2) N-methyl-N1-(3-hydroxy - 4 - carboxyphenyl) - thiourea from 3 - hydroxy - 4 - carboxyphenyl isothiocyanate and methylamine; (3) N-methyl-N-(b -sulphoethyl) - N1 - (3 - hydroxy - 4 - carboxyphenyl)-thiourea sodium salt from methyltaurine and 3-hydroxy - 4 - carboxyphenyl isothiocyanate; (4) N - allylamino - N1(3 - hydroxy - 4 - carboxyphenyl)-thiourea from allyl isothiocyanate and 4-amino-2-hydroxybenzoic acid; (5) N-methyl-N-carboxymethyl - N1 - (3 - hydroxy - 4-carboxyphenyl)-thiourea from methylaminoacetic acid and 3-hydroxy-4-carboxyphenyl isothiocyanate; (6) N-(1-methyl-4-diethylaminobutyl) - N1 - (3 - hydroxy - 4 - carboxyphenyl)-thiourea sodium salt from 3-hydroxy-4-carboxyphenyl isothiocyanate and 2 - amino - 5 - diethylamino - pentane; (7) 1 - phenyl - 4 - (31-hydroxy - 41 - carboxyphenyl) - thiosemicarbazide from 3-hydroxy-4-carboxyphenyl isothiocyanate and phenylhydrazine; (8) N,N1-bis(3-hydroxy - 4 - carboxy - phenyl) - thiourea from 3 - hydroxy - 4 - carboxyphenyl isothiocyanate and 4 - amino - 2 - hydroxybenzoic acid; (9) N - (4 - methyl - pyrimidyl - 2) - N1(3 - hydroxy-4 - carboxyphenyl) - thiourea from 3 - hydroxy-4 - carboxyphenyl isothiocyanate and 4-methyl - 2 - aminopyrimidine; and (10) 4-thioureido - 2 - hydroxybenzoic acid from 3-hydroxy - 4 - carboxyphenylcyanamide and sodium hydrosulphide.  Compounds are also specified in which the group -NR1R2 in the general formula is phenylamino, piperidino, 4-carboxyphenylamino, (pyridyl-2)-amino, (thiazolyl - 2) - amino, hydrazino, ethyleneimino - (tetramethylenesulphone - 3) - amino, and carbethoxy-hydrazino.
Patent GB-334959-A (GB)
Title: Improvements in or relating to the manufacture of pressed tubes or the like
IPC: F16L9/12
Filed: 1929-06-15
Abstract: 334,959. Lloyd, A., and Bakelite, Ltd. June 15, 1929. Moulding pipes; gums and resins. - In the manufacture of tubes, rods, &c. of the kind formed by winding upon a mandrel paper or like material impregnated with a thermo-plastic material such as a phenol and formaldehyde condensation product, the tube is covered during the final process of beating to convert the thermoplastic material into its infusible form by a flexible binding, for example, tape. This binding, which is preferably of a porous nature, supports the tube while pressure is applied thereto by expansion of the mandrel and also permits the escape of any gases evolved during heating.
Patent GB-349339-A (GB)
Title: Manufacture and application of stable diazo-preparations
Filed: 1930-06-17
Abstract: Stable diazo-preparations are made by precipitating diazo solutions by means of aromatic sulphonic acids in presence of salts of metals of the second group of the periodic system, advantageously salts of magnesium.  They are suitable for ice-colours and printing.  Benzene, toluene, chlorbenzene, chlortoluene and naphthalene sulphonic acids are specified.  In examples, (1) magnesium or calcium chloride is added to diazotized 2 : 5-dichloraniline and the mixture precipitated with 2 : 7-naphthalenedisulphonate or 1 : 3 : 6-trisulphonate; the solubility of the product may be increased by adding acid or a salt (cf. Specification 238,704, [Class 2 (iii), Dyes &c.]; (2) diazo o-anisidine is treated as above; (3) diazo o-chloraniline containing magnesium chloride is precipitated with 1 : 5-naphthalene disulphonate; (4) 2-diazo-4-chloro-1 : 11-diphenylether is precipitated with magnesium chloride and p-toluenesulphonic acid; (5) cotton impregnated with the a -naphthylamide of 2 : 3-oxynaphthoic acid is developed with the preparation in (1); other components specified are the anilide, b -naphthylamide and p-chloranilide and also 1-naphthol-4-phenylketone and arylides of acetoacetic acid, e.g. diacetoacetic-o-tolidide.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of other organic acids as precipitating agents such as aliphatic or aromatic carboxylic acids, e.g. oxalic acid.  This subject-matter does not appear in the Specification as accepted.
Patent GB-246040-A (GB)
Title: Improvements in pipe coupling means, for making steam and other fluid-tight joints
IPC: F16L37/14
Filed: 1925-07-20
Abstract: 246,040. Glen, L. M., and MacGill1 vray, C. R. July 20, 1925. Couplings, disconnectible.-In pipe couplings of the kind comprising two similar parts or halves 1, 2 each part being provided with a nipple or hollow projection 5 on one side and with a hole 11 in the other side, said nipple and hole being in communication with the main. passage 10 through the coupling, and means such as a tapered pin 18 for retaining the parts in the coupled position, each hole 11 is fitted with a resilient packing 14 into which the corresponding projection 5 projects, said packing being subjected to the internal fluid pressure at its inner end 13. The hole 11 is preferably counterbored to receive the packing 14 and a shoulder 7 on the projection 5 abuts against the outer end thereof, while each projection 5 communicates with the corresponding main passage 10 through a passage 8 and recess 9 and each hole 11 communicates therewith through a recess 12. A steam trap may be screwed into the lower end of each recess 9. In a modification, the locking pin 18 is replaced by spring bales 28, Fig. 6, one being hingedly attached at 29 to each. part or half 1, 2 and adapted to engage with the other half.
Patent GB-1148921-A (GB)
Title: A process for electrolytically removing scale from a metal
IPC: C25F1/06
Filed: 1966-04-27
Abstract: 1,148,921. Electrolytically removing scale from metal. GENERAL DYNAMICS CORP. April27, 1966 [April 30, 1965], No.18537/66. Heading C7B. In electrolytically removing scale from metal in an electrolytic bath, the metal is free from any electrical connections and passes or remains between or alongside electrodes with the current flow between electrodes respectively on opposite sides or on the same side of the strip, the electrolyte being an aqueous solution containing a chelating acid in a concentration of from 5 to 50% by weight and a base which forms a salt therewith, the base being either a nitrogen base in a concentration such that the pH of the solution is from 3 to 7 or an alkali metal hydroxide base in a concentration such that the PH of the solution is from 3 to 6. The metal may be ferrous metal such as steel strip, e.g. ready for tinning or galvanizing. Specified chelating acids (a), nitrogen bases (b), and alkali metal hydroxides (c) are (a) citric, glycolic, diglycolic, gluconic and tartaric acids, (b) NH 4 OH and amines such as alkanol amines (e.g. ethanol amine and triethanol amine) and alkyl amines (e.g. ethylamine and triethylamine) and (c) KOH and NaOH. Possible conditions include the use of A.C. or D.C.; a current density of 100 to 1300 amps. /sq.ft.; a solution temperature of 200F. to the boiling point; a solution which also includes nonionic surfactants, wetting agents, ionic surfactants, corrosion inhibitors and inorganic salts as desired, and agitation or circulation of the electrolyte during descaling. Fig. 1 (not shown) illustrates the descaling of steel strip (1) between electrodes (E 1 ) and circulation of electrolyte through a filter and solution reclamation system. Fig. 7 shows segmented electrodes E 4  with removable baffles 18 between segments which prevent current movement in directions away from a metal strip 17. Figs. 8 and 9 (not shown) illustrate apparatus having baffles (21) which are hinged so as to accommodate metal strips (22 and 26) which are of different widths.
Patent GB-498599-A (GB)
Title: Improvements in or relating to mortars, howitzers or the like, and to cartridges for use therewith
IPC: F41F1/06
Filed: 1937-07-05
Abstract: 498,599. Mortars and ammunition therefor. MOTLEY, L. July 5, 1937, No. 18627. Divided out of 498,595. [Classes 9 (i) and 92 (ii)] The cartridge case of a projectile fired from a mortar, howitzer, &c., is adapted to be automatically ejected from the muzzle of the mortar after the discharge of the projectile. The case 2 for the projectile 1 carries a propellant charge 4 which is fired when the primer 5 contacts with a firing pin 6, on the projectile being dropped down the mortar 3. A plug 7 in the base of the cartridge case is thereby blown out, whereupon the excess pressure on the lower side of the cartridge case, which obtains when the projectile leaves the muzzle, causes the cartridge case to be thrown out gently from the muzzle. According to a modification, the cartridge case 2; Fig. 2, has a tongue 10 which is caught under a spring hook 9 on the muzzle, the cartridge case seating on and being urged upwardly by, a spring 8. A central contact 13 and ring contact 14 on the cartridge base engage with yielding contacts 15, 16 in an electric circuit. When the circuit is closed to fire the charge, the initial reaction depresses the cartridge case thereby freeing the hook 9 and allowing the spring 8 to eject the cartridge case when the projectile leaves the muzzle. Specification 498,595 is referred to.
Patent GB-1012149-A (GB)
Title: Lattice girder
Inventor: ROMEK ARPAD
IPC: E04C5/065
Filed: 1962-05-15
Abstract: 1,012,149. Lattice girders. S.E.C.O. STEEL EQUIPMENT CO., P.V.B.A. May 15, 1962, No. 18662/62. Heading E1K. A lattice girder comprises an upper tubular boom 2 of triangular cross-section the side walls of which are flared outwardly at 24, 25 where they are welded to the top of horizontal parts 44 of the lattice web 4. The web comprises a number of inverted V-shaped bars flattened at the apex 44 and the lower ends of which are welded between the angle members 31, 32 of the lower boom. The axes 9 of the adjacent sloping arms 41 of the web bars intersect at the neutral axes of the two booms. The central planes of symmetry of the sidewalls 23 of the upper boom intersect at the common axis 45 of the parts 44. Specification 1,012,150 is referred to.
Patent GB-187446-A (GB)
Abstract: 187,446. Scott, D. Oct. 18, 1921. Pistons; pistons, cooling; guiding- means within cylinder. - Two-stroke internal-combustion engines normally using crank-case compression may be modified by mounting a member comprising a partition 1 and a guide 2 for a piston rod 5 between the crank-case and the cylinder, thus enclosing a pump space 3. The piston and pistonrod may be provided with cooling ribs.
Patent GB-165338-A (GB)
Title: An electromagnetic appliance for handling plates, rails, bars and the like
IPC: H01F7/20
Filed: 1920-07-06
Abstract: 165,338. Colville & Sons, Ltd., D., and Inglis, J. J. July 6, 1920. Magnetic lifting-apparatus. - Comprises means for adjusting the range of electromagnetic lifting- appliances to suit the size of object under treatment. A box-shaped casing A, slung from a crane and carrying a central electromagnet P, is fitted with slidable extension members D carrying other magnets P at their outer ends. For positioning, the extension members are connected by brackets H to endless chains G, the inner chain wheels of which are driven simultaneously through two sets of oppositely-threaded worm gearing from a motor N. Rack-and-pinion or screw-and-nut gearing may be substituted for the chains. The system may be extended by the provision of other extensible members mounted on the members D.
Patent GB-725630-A (GB)
Title: Wide-range radio frequency tuner
IPC: H01F21/00
Filed: 1953-07-08
Abstract: 725,630. Inductors. ALADDIN INDUSTRIES, Inc. July 8, 1953 [Aug. 21, 1952], No. 18966/53. Class 38 (2). [Also in Group XL (c)]. A radio-frequency tuner comprises an inductor having a non-uniform inductance per unit length and two elements spaced a fixed distance apart and coupled to the inductor at different positions along its length, the inductor and the elements being relatively movable. The inductor is coupled to the radio receiver through the two elements, the inductance between which varies according to the position of the inductor with respect thereto. As shown in Fig. 1, three separate tuning arrangements, ganged together through the yoke 24, are mounted within a screening enclosure 11 provided with separation plates 13, 14. Each inductance coil 22 is axially aligned with two sleeves 17, 18 through which it may pass and which provide capacitive coupling to the inductor at spaced points along its length. The sleeves are mounted in rigid blocks 20 of a thermosetting plastic material. The inductance coils are non-uniformly wound, so that a maximum inductance is obtained between the sleeves 17 and 18 when the left-hand ends of the coils are just within the sleeves 18, the inductance decreasing as the coils are moved to the left. It is stated that very large frequency ranges (e.g. having a ratio of 25 to 1) may be obtained in this manner. The inductors shown in Fig. 1 are constructed by covering the surface of a low-loss plastic rod with copper or aluminium foil or plating which is then cut away to provide an inductor in the form of a conducting ribbon. Fig. 6 shows an alternative construction in which the left-hand end of the inductor comprises a wire winding gradually increasing in spacing towards the right-hand end of the inductor and finally merging into a conducting ribbon. A magnetic dust coil is provided within the inductor at its left-hand end. In a further arrangement, Fig. 7 (not shown), the inductor is constructed by winding metal foil or ribbon on to an insulating rod. In Fig. 1, one sleeve 18a is shown as longer than the rest. Such a sleeve may be necessary in certain circumstances to render the left-hand end of the coil ineffective when the inductor is fully inserted and so prevent the occurrence of " dead spots ". Figs. 3 and 4 (not shown) illustrate clips which partly encircle the inductors and may be used in place of the sleeves for coupling capacitively to the inductors. In working on low frequencies, conductive-coupling at spaced positions along the inductors may be provided.
Patent GB-1082464-A (GB)
Title: Improvements in or relating to strapping and sealing machines
IPC: B65B13/22
Filed: 1965-05-05
Abstract: 1,082,464. Angular bending; jointing by stamping. A. J. GERRARD MANUFACTURING CO. May 5, 1965 [May 25, 1964], No. 18985/65. Headings B3E and B3Q. [Also in Divisions B6, B8 and F2] In a strapping machine (see Division B8), a strap S is fed around an object and tensioned by reversing the feed rollers and additional tensioning means and the overlapping portions of the strap are secured together by a deformable metal seal 32. The seals 32 are supplied as a strip 30 which is fed into position below the strap. The seal is fed into the path of a piston 168 which reciprocates between vertical plates 164, 166. Mounted on the piston are two pairs of crimper jaws 550, 552, 554, 556, which are controlled by cam rollers. As the piston 168 moves upwards, the crimper jaws are initially held in the open position. A knife also mounted on the piston 168 co-operates with a fixed cutter to sever the leading seal 32 from the strip 30. The seal is carried upwards between the jaws until it embraces the strap when the jaws bend the walls 36 of the seal inwards and a punch displaces portions 44 to secure it in position. The piston continues to ascend so that the knife is raised further and co-operates with a fixed cutter 202 to sever the strap S completely from the spline. While the strap is being fed in the reverse direction a strap straightening mechanism is brought into operation to ensure that the end of the strap is straight for the next strapping operation. This mechanism comprises a pair of rollers 302, 304, mounted traversely of the strip on a block 300 which is raised to an operative position but remains lowered during the forward feed. The block 300 is reciprocable in a fixed block 312 by an eccentric 328 which engages the base of the block 300. The block reciprocation is operated through a shaft 326 and lever 330 and pin 332 arrangement from an air cylinder 336 when the eccentric is rotated to cause the block to rise and trap the strap between the rollers 302, 304 and a fixed guide 306.
Patent GB-647573-A (GB)
Title: Improvements in or relating to metallised paper capacitors
IPC: H01G13/00
Filed: 1948-07-15
Abstract: 647,573. Condensers. HUNT, Ltd., A. H., and GROUSE, R. A. July 15, 1948, No. 19063. [Class 37] A wound type condenser is formed from a metallized paper strip in which the metallized surface is sub-divided by a continuous non-metallized portion extending along the strip between separate metallized areas, thereby forming a repeated pattern in which some metallized areas extend from one edge of the strip and some from the other, the different metallized areas in the roll overlapping one another and the areas extending from the separate edges being connected to separate poles. In Fig. 1, a demetallized band 16 separates metallized areas 12 and 14. The pitch of the demetallized " key " pattern increases as the roll circumference increases to produce overlap of the areas 12 and 14. Alternatively, the strip has metallized areas 83, Fig. 9, which, in the roll, alternate with areas 81 and 82, Fig. 10, forming the equivalent of two condensers in series. In a further embodiment the metallized areas are widely spaced enabling several layers of paper to be sandwiched between them. Apparatus for demetallizing the strip is described. Specifications 558,688, 563,080, 595,808 and 619,364 are referred to.