baber/WOPTO huggingface dataset:
Patent GB-1464415-A (GB)
Title: Device capable of detecting carbon monoxide and process for preparing a composition for use in detection of carbon monoxide
IPC: G01N27/12
Filed: 1974-06-12
Abstract: 1464415 CO-detecting device NOHMI BOSAI KOGYO CO Ltd 12 June 1974 [12 June 1973] 26098/74 Heading C1J [Also in Divisions B1 and G1] A carbon monoxide-detecting device comprises a sintered CO-sensitive resistor element containing stannic oxide and a minor proportion of platinum black catalyst. The catalyst may be provided by the thermal decomposition of a platinum salt, e.g. platinum sulphate, or a platinic compound, e.g. chloroplatinic acid, bromoplatinic acid. The stannic oxide may be provided by the thermal decomposition of a tin salt, e.g. stannic bromide. The starting materials, containing between 0À5 and 10 wt. per cent of catalyst or catalyst source expressed as elemental Pt based on the weight of stannic oxide, may also comprise a sintering agent such as clay, ferric oxide or glass, and be mixed with water; or they may be dissolved in HCl. As described, the mixture or solution is applied to a tube of alumina ceramic and baked to effect sintering and, where necessary, thermal decomposition, to form a resistive film, at the ends of which electrodes are formed by the application of a silver paste followed by baking.
Patent GB-1180507-A (GB)
Title: Improvements in or relating to Grain Separating Apparatus
IPC: A01F12/44
Filed: 1968-05-31
Abstract: 1,180,507. Grain separating apparatus. MASSEY-FERGUSON Ltd. 31 May, 1968 [6 June, 1967], No. 26142/68. Heading A1F. Grain separating apparatus for a threshing machine or combine harvester comprises a shaker shoe assembly 12 with at least one separating screen 21, 22, a conveyer or grain pan 9 with a discharge end above the screen, a fanning mill 13 for blowing upwardly and rearwardly through the screen 21, and between the conveyer 9 and screen 21, and a rotary beater 52 which propels the grain towards the screen increasing its velocity and hence its resistance to the air stream from the fanning mill which may then be driven at higher rates. The shaker shoe assembly 12 is connected by rocker 38 to the lower side of the conveyer 9 and as the rocker oscillates about shaft 40 so the shaker shoe assembly reciprocates horizontally.
Patent GB-487935-A (GB)
Title: Ground protective relay device for electrical equipment
IPC: H02H11/00
Filed: 1936-09-26
Abstract: 487,935. Protective cut-out arrangements. MARTIN, J. H., and SHEPPARD, H. L. Sept. 26, 1936, No. 26181. [Class 38(v)] A small or low power appliance 20 supplied over a multiple cable with earthing lead 16 for the frame or casing 17 of the appliance, has its supply circuit 10, 11 made by a contact 12 closed by a winding 13, which is connected in series with a hand-switch 14 between the lead 11 and earth lead 16 or frame. If the earth lead is broken the appliance is disconnected or cannot be energized. When applied to a radio receiving set, the winding 13 functions as a choke to eliminate interference by radiofrequency currents in the supply mains. A figure of 20,000 ohms for the winding resistance is given in the Specification. Specification 20590/08, [Class 38], is referred to.
Patent GB-954273-A (GB)
Title: Polymeric plastic bag
IPC: B65D30/24
Filed: 1962-07-09
Abstract: 954,273. Valve bags. STAMICARBON N.V. July 9, 1962 [July 13, 1961], No. 26284/62. Heading B8K. A slit 5 in a plastic bag is covered on the inside by a thin foil 11 which is reinforced by a shorter foil 8. In the polythene bag illustrated the thickness of the larger foil 11 is at most, half that of the bag wall whilst the combined thickness of the two foils 8, 11 is at least that of the bag. The foils may be welded either on 3 edges as in Fig. 1, or only 2, in which case the broad foil 11 projects on either side of the narrower foil. Both the foils and bag may be made of any plastics, either unreinforced or reinforced with fibrous material.
Patent GB-282522-A (GB)
Title: Improvements in door furniture or operating mechanism for door latches
IPC: E05B3/06
Filed: 1926-10-22
Abstract: 282,522. Parkes, S. R. Oct. 22, 1926. Stud-and-slot fastenings; knobs and handles, attaching.-One handle 1 is secured to the spindle 2 which is retained in position by a collar 6 through which a split or other pin 7 is passed. The pin 7 also passes through one of a series of holes 8 in the spindle. The other knob 12 is rotatably mounted in the rose 10. A sleeve 14 fits over the spindle 2 and holds the knob and rose in rotatable engagement somewhat as described in Specification 236,055.
Patent GB-389830-A (GB)
Title: Method and apparatus for embossing cylinders for the goffering of films
IPC: B44B5/00
Filed: 1931-09-21
Abstract: 389,830. Colour photography. KELLER-DORIAN COLORFILM CORPORATION, 522, 5th Avenue, New York, U.S.A. Sept. 21,1931, No. 26389. Convention date, Oct. 13, 1930. [Class 98 (ii).] An embossing-cylinder for producing lenticulations on films is produced by treating the cylinder with an intermediate wheel that has been produced from a mother wheel, both the mother and intermediate wheels being provided with linear recesses parallel to their axes so that the embossing-cylinder is provided with linear longitudinal recesses adapted to produce transverse lenticulations on the films. As shown in Fig. 1, one end of the mother wheel 1, which is rotatable in supports 2 and held therein by plates 3, is secured to a positioning wheel 5 with the notches 6 of which co-operates the pointed end 7 of a spring-urged lever 8. Recesses spaced correspondingly to the notches 6 are produced in the mother wheel 1 by a tool 12 urged down against a spring 16 by a hammer 17 reciprocated by an arm 20 rotated by a hand crank. Weights 22 may be placed on the platform 23. After hardening, the mother wheel 1 is employed to produce an intermediate wheel 25, Fig. 5, the periphery of which is slightly curved in planes passing through its axis. The operation is effected by rotation in contact. After hardening, the intermediate wheel is removed with the V-shaped supports 28, 29 employed in the previous operation to a machine shown in Figs. 5 and 6, the dovetailed projection 30 fitting into a rotatable base 31 having peripheral teeth meshing with a worm 33 adapted to be cranked by hand to align the teeth of the wheel 25 with the embossing-cylinder. The worm 33 and base 31 are pivoted in a frame 34 provided with notches 36 for the reception of a holder for weights 35, and pivoted at 37 to a frame 38 slidable on a triangular guide 39 by a screw 41. The embossing-cylinder 42 is tight on a shaft 45 which is engaged by pivots 43, 44 and one end of which has an arm 46 engaging a pin 47 in a driving wheel 48 arranged to rotate the cylinder 42. Specifications 262,466 and 298,951, [both in Class 98 (ii), Photographic processes &c.], are referred to. The Specification as open to inspection under Sect. 91 comprises also the use of the apparatus for producing lenticulations other than transverse, in particular longitudinal, a spirally cut mother wheel being employed. This subjectmatter does not appear in the Specification as accepted.
Patent GB-761947-A (GB)
Title: Device for carrying parcels
IPC: A45F5/10
Filed: 1954-09-14
Abstract: 761,947. Parcel carriers. LUNDGAARD, H. K. Sept. 14, 1954 [Sept. 14, 1953], No. 26532/54. Class 133. A device for carrying parcels consists of a strip of metal, wood, &c. 1 provided with longitudinal slits 2 shaped as shown, whereby a packing-string loop 9 of the parcel may be suspended from the device which is held by two of the user's fingers supporting the free end portions of the device at each side of the loop.
Patent GB-205973-A (GB)
Title: Foundry moulding machines
IPC: B22C15/20
Filed: 1922-10-02
Abstract: 205,973. Beardsley, E. O., and Piper, W. F. Oct. 2, 1922. Moulding-machines of the type described in Specification 177,131 are hauled over the foundry floor by a motor operated winch situated at one end of the foundry. A shaft 40 spur driven from an electric motor carries a series of eccentrics 44 operating pawls 45 resting on rollers 46. A winch is provided for each moulding-machine and when a machine is to be traversed over its sand pile a switch 51 on the machine is closed to energize a solenoid 48 and by means of roller 50 on the core lift the pawl into engagement with a ratchet wheel on the winch barrel.
Patent GB-687336-A (GB)
Title: Improvement in biphenylyl-ª‡-acylamido-ª‰-hydroxyethyl ketone compounds
IPC: C07C233/00
Filed: 1950-02-15
Abstract: The invention comprises biphenylyl-a -acylamido-b -hydroxyethyl ketone compounds of the general formula <FORM:0687336/IV (b)/1> (wherein n is 1 or 2, R represents hydrogen, halogen, a nitro group or an alkyl or alkoxy group of not more than 4 carbon atoms, the two R's being the same or different when n is 2, and R3 represents hydrogen or an acyl radical), and the manufacture thereof by (a) (when R3=H) condensing a biphenylyl acylamidomethyl ketone compound of the general formula <FORM:0687336/IV (b)/2> with formaldehyde in the presence of an alkaline condensation catalyst, and (b) (when R3=acyl) reacting the corresponding compound in which R3=H with an acyl anhydride or acyl halide under anhydrous conditions.  The condensation in (a) may be carried out at 0-75 DEG  C. (preferably 25-50 DEG  C.) in an aqueous lower aliphatic alcohol using a weakly alkaline condensation catalyst (e.g. sodium or potassium bicarbonate, calcium hydroxide, pyridine, triethylamine, N-ethylmorpholine or dimethylaniline). Stronger alkalies (e.g. sodium or potassium hydroxide, potassium carbonate, or sodium methoxide or ethoxide) may also be used, but must be removed or inactivated as soon as the reaction is completed.  The formaldehyde, which is preferably in excess, may be in the form of gas, an aqueous or alcoholic solution or a formaldehyde-yielding polymer.  The acylation in (b) may be effected in the presence or absence of acylation catalysts (e.g. inorganic bases, alkaline salts of organic acids, organic tertiary bases, aromatic sulphonic acids or sulphuric acid).  Examples describe the preparation of (1) 4-biphenylyl-a -acetamido-b -hydroxyethyl ketone; (2) 3-biphenylyl-a -benzamido-b -hydroxyethyl ketone and the corresponding b -acetoxy compound; (3) 41-methoxy - 4 - biphenylyl - a  - phenylacetamido-b  - hydroxyethyl ketone; (4) 41 - nitro - 4-biphenylyl - a  - acetamido - b  - hydroxyethyl ketone; (5) 41-iodo-4-biphenylyl-a -benzamido-b -hydroxyethyl ketone; (6) 21-methyl-4-biphenyl - a  - (p - toluylamido) - b  - hydroxyethyl and -b -acetoxyethyl ketone; (7) 41-nitro-6-methyl - 3 - biphenylyl - a - acetamido - b -hydroxyethyl ketone.  Biphenylyl acylamidomethyl ketones of the second general formula above are obtainable by condensing the corresponding halogenomethyl ketone with hexamethylenetetramine, hydrolysing the resulting complex with mineral acid, and neutralizing and acylating the resulting aminomethyl ketone salt.  The preparation of 4-biphenylyl acetamidomethyl ketone from 4-biphenylyl bromomethyl ketone is described in detail.  4-Biphenylyl bromomethyl ketone is obtainable by the action of bromine on 4-biphenylyl methyl ketone in carbon tetrachloride.
Patent GB-786564-A (GB)
Title: Improvements in or relating to valves
IPC: F16K1/42
Filed: 1954-09-14
Abstract: 786,564. Stuffing-boxes. BRITISH PETROLEUM CO., Ltd., and FRASER, D. S. D. Sept. 14, 1955 [Sept. 14, 1954], No. 26630/54. Class 122 (5). [Also in Group XXIX] In a stuffing-box for a valve spindle 1, a junk ring 11 and packing rings 10 are held in a removable box member 9 by a volute or coil spring 12. The member 9 seats on a soft metal ring 8 and has an outwardly projecting lip to accommodate an extractor tool. A nut 2 securing the valve member to the spindle is provided with a projection which seats in a recess in the casing when the valve is fully open to seal the casing against leakage whilst the packing is being renewed.
Patent GB-156056-A (GB)
Title: Improvements in capped armour-piercing shells
IPC: F42B10/46
Filed: 1920-09-17
Abstract: 156,056. Rogers, T. W., (Krupp Akt.-Ges., F.). Sept. 17, 1920. Projectiles.- Armour-piercing shells having a cap B and a hollow contour casing C in front of the cap, have perforations c' formed in the casing, preferably at equal distances apart round the periphery.
Patent GB-377016-A (GB)
Title: Improvements relating to belt gearing
IPC: F16G5/18
Filed: 1931-09-25
Abstract: 377,016. Belt gearing. MORSE CHAIN CO., Ithaca, New York, U.S.A.- (Assignees of Morse, F. L. ; Ithaca, New York, U.S.A.) Sept. 25, 1931, No. 26778. Convention date, Oct. 10, 1930. [Class 80 (i).] In belt gearing, for driving generators from railway axles &c., of the kind in which metal V driving-belts engage pulleys of which the grooves are faced with friction material, the driving-links 3 consist of a metal sheet 20 wrapped around a pair of inner supports 25, 25<1> in which bear the pivots 30 of the connecting- links 4. The supports 25, 25<1> may be cut away at 26 for lightness and carry projections 31 which may be bent down over the interleaving ends 22, 22<1> of the sheet 20, which is thus locked in position. The ends 22, 22<1> may be welded together or may be notched to fit around the projections 31. Projections 29 on the bottom edges of the supports 25, 251 may engage holes in the sheet 20. The pulley grooves are lined with friction material 8<1>, and to prevent damage when the belt is out of alignment the material is inserted in recesses in the faces of the grooves, or, as shown in Fig. 3, is shrouded at its outer edges by metal covers 14.
Patent GB-978207-A (GB)
Title: Perforating machine and method of perforating
IPC: B26F1/24
Filed: 1963-07-05
Abstract: 978,207. Perforating thermoplastic sheets. KENDALL CO. July 5, 1963 [July 6, 1962], No. 26800/63. Heading B5A. In a perforating machine comprising a pattern roller 10 and a smooth roller 40, the roller 40 is forced against the roller 10 by a pneumatic piston 67 acting through arms 45, 46. The various joints in the linkage are provided with ballbearings to ensure that the rollers are kept parallel during operation. The roller 10 is heated by electric elements in holes 16 and is adjustably mounted (see Fig. 3, not shown). The roller 40 is heated to a higher temperature by an electric heater 55 connected through slip rings 53, 71. The tape which may be faced with " Cellophane " (Registered Trade Mark) and a backing sheet of, e.g. polythene may be fed through the nip by rollers 24, 25, 26, 27. Specification 963,361 is referred to.
Patent GB-793356-A (GB)
Title: An improved method and apparatus for continuously casting metal bars, billets, or the like
Inventor: WHITAKER PAUL
IPC: B22D11/14
Filed: 1953-09-30
Abstract: 793,356. Continuous - casting machines. STEWARTS & LLOYDS, Ltd. Sept. 27, 1954 [Sept. 30, 1953], No. 26804/53. Class 83 (1). Molten-metal is fed to a continuous-casting mould by the combined actions of gas under static-pressure and gas under pulsating-pressure. A ladle 1, Fig. 1, is placed within a gas-tight chamber 10 and air or other gas, such as nitrogen or other inert gas under pressure, is applied to the surface 6 of the melt through pipes 1C, 17, the pipe 16 supplying air at a static-pressure and the pipe 17 supplying air at a pulsating-pressure to prevent metal sticking in the mould 12. At its lower end the mould carries a ladle-stopper 9, and a heated refractory entry-runner 14 which co-operates with seating 15 to form a gas-tight seal. A low-frequency induction element in the exitrunner 21 stirs the molten core of the casting, which is extracted by rollers 23 and cut into billets 2B by torches 27, the billets being removed by a manipulating device 28. The speed of the rolls, and the gas-pressure, may be simultaneously controlled as by electronic means 24. The mould-assembly is supported on jacks 26, being lowered into engagement with the ladle and chamber before casting commences, and being removed therefrom when the level 6 reaches the lower edge of the ladlepartition 3. In a modification, a tubular extension of the mould dips into the melt in the ladle, and the mould-assembly is lowered during casting to maintain the extension below the surface of the melt. In a further modification, the ladle itself is pressurized, the gaspipes passing through a gas-tight cover-plate. In another embodiment, a bottom-pour ladle is enclosed in a pressure-container alongside the mould and the metal is fed from the bottom of the ladle through a U-shaped runner-block. In a further modification, a bottom-pour ladle is pressurized and feeds a horizontal mould. It is stated that for upward-casting, a gaspressure of 4-6 1bs. /in.<SP>2</SP> per foot-length of cast-bar is used, and 6, 10 and 20-inch square steel bars can be cast at speeds of 4-5, 2, and 1 foot per minute respectively.
Patent GB-360109-A (GB)
Title: Color photography
IPC: G03C7/26
Filed: 1930-09-08
Abstract: 360,109. Colour photography. DEHN, F. B., 103, Kingsway, London.- (Du Pont Vitacolor Corporation, M. B. ; 207, North Occidental Boulevard, Los Angeles, U.S.A.) Sept. 8, 1930, No. 26806. Drawings to Specification. [Class 98 (ii).] In a process for producing colour transparencies, complementary colour record negatives are taken of the object and a positive is prepared from one of them, this positive and the other negative being then printed in different strata of a single emulsion. A light obstructing dye such as tartrazine is added to the emulsion to prevent printing through. The images are developed together and the outer one is bleached with a bleacher which tans the gelatine in contact with the silver image. The image in the inner layer is then dye-toned or chemically toned and the unhardened gelatine of the outer layer died in a complementary colour. The bleaching bath may comprise potassium ferricyanide, potassium bromide, potassium bichromate, acetic acid, and potassium alum. The inner image may be bleached in a bath' consisting of oxalic acid, vanadium oxalate, and potassium ferricyanide and dyed with chrysoidine and fuchsine or of uranium nitrate, potassium oxalate, and hydrochloric acid, or may be toned with potassium oxalate, ferric nitrate, potassium ferricyanide, and hydrochloric acid. Pinatype red D and Wool green S may also be used as dyes. Specifications 130,603, 160,137, and 193,069, [all in Class 98 (ii), Photographic processes &c.], are referred to.
Patent GB-519179-A (GB)
Title: Improvements in sliding doors
IPC: E06B3/48
Filed: 1938-09-14
Abstract: 519,179. Sliding doors. ROUSE, E. E., and SILENT GLIDING DOORS, Ltd. Sept. 14, 1938, Nos. 26838/38 and 14258/39. [Class 20 (iii)] A sliding door, particularly for aircraft hangars, garages, and like buildings is formed of vertical hollow metal units hinged together and supported on internal or external rail rollers, the articulated structure being guided for sliding and provided with driving-means, manually- or power-operated, for moving the door as a whole or in parts. As shown, the door comprises a series of hollow units,3 each formed with diagonallyopposed flanges 4 and recesses 5 to inter-engage with adjacent units which are connected by hinged plates 6 arranged in pairs adjacent the top and bottom of the door. At these places, the hinge-pins 8 are adapted to be engaged by recessed plates 17 on sprockets 16 which may be driven from a motor 24. As shown in Figs. 3 and 5, the lower run of the door is fitted with rollers 10 travelling on rails 11. At the upper run, the hinge-pins 8 are extended into brackets 12 carrying pairs of rollers 13 embracing a guide-rail 14. In the modification shown in Fig. 8, the door is hung by trolleys 28 in channel-tracks 29, and guided at the bottom by rollers 32 engaging a channel 33. To enhance the weather-proofing effect of the lapped edges of the door units. they may be fitted with rubber or like compressible strips and the units may be lined with wood, asbestos boards &c. ,Further, some or all of the units may be fitted with. electric heaters arranged to induce an upward current of warm air.
Patent GB-949094-A (GB)
Title: Process for the production of solutions of pure peracetic acid
IPC: C07C409/26
Filed: 1961-07-25
Abstract: Solutions of pure peracetic acid are obtained by reacting hydrogen peroxide and acetic acid in a molar ratio of >1 in the presence of an acid catalyst and distilling the peracetic acid and water off from the reaction mixture.  The acid catalyst is a substance that is soluble in the reaction mixture, has no strong oxidising or reducing action, and produces solutions of the required pH. Sulphuric acid is preferred, other specified catalysts being sodium and potassium acid sulphates, ortho, meta and pyro-phosphoric acids and ion exchange resins containing sulphonic or phosphonic acid groups.  The molar ratio of hydrogen peroxide to acetic acid is preferably between 5:1 and 15:1.  The process is suitably carried out at 20 DEG  to 80 DEG C. and preferably at 40 DEG -65 DEG C. and in a vacuum, in the presence of more than 3% of the catalyst by weight, and where this is sulphuric acid, advantageously from 10 to 30%.  The process may be carried out continuously by constantly distilling the aqueous peracetic acid and feeding in the hydrogen peroxide rich reaction mixture, hydrogen peroxide and acetic acid in the molar ratio of 1:1. This method may conveniently be used to prepare solutions of peracetic acid in organic solvents which are not, or only slightly, soluble in water and which form an azeotropic mixture with water. The water-solvent azeotrope is distilled off and the peracetic acid solution is removed from the sump.  During the process the peroxygen compounds may be stabilised by compounds such as esters of polyphosphonic acids or phosphonic acid. An example is provided.
Patent GB-260764-A (GB)
Title: Improvements in or relating to the automatic control of radiators
IPC: G05D23/02
Filed: 1925-10-28
Abstract: 260,764. Laycock Engineering Co., Ltd., and Pugh, J. W. Oct. 28, 1925. Thermostats. - In a steam-admission control device for radiators in which the temperature of the exhausting steam controls a valve at the inlet end, a thermostatic element comprises strips, discs or plates of bimetallic construction arranged in concentric series of gradually increasing size with the smaller members on that side of the larger which assumes a convex form on rise in temperature. In the example the series 17, 18 are placed with the larger members together, one series 18 bearing against an adjustable stop 24 while the other 17 bears against a spring-held cup 21 connected to a tube 11 adapted to control the seating of a ball valve 7. A modification is described in which the smaller members of the two series are in contact.