baber/WOPTO huggingface dataset:
Patent GB-621789-A (GB)
Title: Improved ignition system for gas turbine engines
IPC: F02C7/266
Filed: 1945-10-19
Abstract: 621,789. Ignition system for gas turbine engines. POWER JETS (RESEARCH & DEVELOPMENT), Ltd., and NARKIEWICZ, V. Oct. 19, 1945, No. 27606. [Classes 75(i) and 75(iii)] Liquid or gaseous fuel from a burner nozzle 24 of a combustion chamber of a gas turbine engine is ignited by a temporary pilot flame from liquid fuel discharged through an orifice 23 at the end of a swirl chamber 14 arranged at the end of a bore 2 in the high tension electrode 1 of a sparking plug secured in the combustion chamber casing 21. A pipe 5 of ebonite or other insulating material, preferably containing fine mesh filters 15, admits fuel to the bore 2. The electrode 1 is insulated from the sparking plug body 8 by a sleeve 7 and carries points 17 forming a spark gap with the annular lower end 18 of the body 8. The end 18 may be apertured for cooling purposes. According to the Provisional Specification the insulation of the electrode may be of sintered material extending down to the lower end.
Patent GB-844406-A (GB)
Title: A process for preparing copolymers of allyl alcohol and vinyl-aromatic compounds; the resulting copolymers; and their use for preparing ester materials
IPC: C09D129/00
Filed: 1957-09-02
Abstract: Copolymers of allyl alcohol and a vinyl aromatic compound containing 15 to 85% of the latter and suitable for preparing ester coating materials are obtained by polymerizing the two components at 100 DEG to 250 DEG C. in the presence of 0,01 to 10% of a peroxide catalyst, the mol ratio of allyl alcohol to vinyl aromatic compound being maintained within the range of 4:1 to 900:1 by the incremental addition of vinyl aromatic compound during the polymerization. Superatmospheric pressures, e.g. 30 to 150 p.s.i., are necessary to maintain a liquid phase. Specified vinyl aromatic compounds are styrene, 01-m-and p-methyl styrenes, 2, 4-dimethyl styrene, p-chlorostyrene, p-ethyl styrene and beta-vinyl naphthalene.  The peroxide catalyst must have a decomposition temperature above 90 DEG C., suitable compounds being di-tertbutyl peroxide, hydrogen peroxide, tert-butyl hydroperoxide, cumene hydroperoxide, paramenthane hydroperoxide and tert-butyl perbenzoate.  A stabiliser such as tert-butyl catechol may be present.  After purifying by distillation, clear and hard copolymers are obtained which are soluble in lower alcohols, acetone, chloroform, benzene and toluene, and have molecular weights of from about 300 to 4,000.  They may be esterified with fatty acids having 12 to 22 carbon atoms in the molecule and an iodine number of at least 85, or with saturated fatty acids such as coconut acids, the resulting esters having acid numbers lower than 30.  Suitable unsaturated acids are oleic, lauroleic, palmitoleic, linoleic and linolenic acids; the acids of linseed, soya bean, dehydrated castor and perilla oils; and the acids obtained by treating drying oils to effect conjugation of the double bonds, e.g. by alkaline isomerization.  The esters may be modified by incorporating a polycarboxylic acid or anhydride or a polyhydric alcohol.  Coating compositions are obtained by dissolving the ester in a solvent, e.g. mineral spirit, together with a naphthenate drier; and other resins such as urea- or melamine-formaldehyde resins may be added.
Patent GB-651189-A (GB)
Title: Improvements in transformer, reactor or other laminated magnetic cores
IPC: H01F27/26
Filed: 1949-10-28
Abstract: 651,189. Transformers and inductances. FALKNAS, O., and ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Oct. 28, 1949, No. 27667. [Class 38 (ii)] To ensure level butt joints between the yoke and legs of the laminated core of a transformer, reactor, &c., having three or more legs 2, the yoke 1 is divided into two or more parts,each part being in contact with two legs only and the yoke parts are held together by a common clamping flange 4. The clamping plates are preferably provided with slots 5 at the yoke joints 6 to permit deformation of the yoke at the joint, and a reinforcing steel web may be welded along the edge of the clamping flanges below the slot. A high contact pressure is ensured by tensioning studs 3. The gap 6 between the yoke parts may be filled with plates of elastic material which preferably is oil-resistant.
Patent GB-1089769-A (GB)
Title: Benzo[b]thiophen derivatives
Inventor: TURNER RALPH WILLIAM
IPC: C07D333/54
Filed: 1965-06-30
Abstract: Racemic compounds of the general Formula (I) <FORM:1089769/C2/1> (wherein R stands for an alkyl, cycloalkyl or alkenyl radical) and their acid addition salts are prepared by reacting a compound of the Formula (II) <FORM:1089769/C2/2> (wherein Y stands for the group -CHOH.CH2 Halogen or <FORM:1089769/C2/3> with RNH2, optionally followed by salt formation.  The preparation of starting materials of Formula (II) is described.  The compounds of the invention are useful in the treatment or prophylaxis of hypertension, phaeochromocytoma and heart diseases, for example angina pectoris, cardiac arrhythmias and coronary insufficiency.  They may be administered in the form of pharmaceutical preparations containing them together with a diluent or carrier.
Patent GB-219554-A (GB)
Title: Train stopping apparatus
IPC: B61L3/04
Filed: 1923-01-22
Abstract: 219,554. Webb, J. F. Jan. 22, 1923. Track apparatus for stopping trains. - A cam shaft for operating a valve for applying the brakes on a train is actuated by a plunger sliding in a guide casing 3 and carrying a contact shoe for engagement with a track ramp. The cam shaft has an enlarged projection 9 in which are two notches 10 in which engages a latch lever 15 to hold the valve in open and closed positions. The latch lever 15 carries a roller for engagement in the notches 10 and is pressed against the cam by a spring 17. A projection 20 on the latch lever coacts with a tooth 19 on the supporting member 13 to limit its movement and permit removal of the latch mechanism as a unit structure from the base 1. The spring 17 is supported at its lower end on a screw stud adjustable in the base member 12. The cam has a stop 11 engaging the support 13 to hold the cam in normal position. Specifications 145,580, 219,345 and 219,553 are referred to.
Patent GB-1043188-A (GB)
Title: Casing for sewing machine and mould for use in making it
IPC: B22C9/06
Filed: 1963-07-12
Abstract: 1,043,188. Moulds; casting processes. SOC. PER AZIONI FRATELLI BORLETTI. July 12, 1963 [July 12, 1962], No. 27773/63. Heading B3F. [Also in Division D1] A sewing machine frame (see Division D1) comprises a casting having a pillar of substantially I-section with the upright web disposed transversely to a vertical longitudinal plane and the flanges slightly divergent at an angle of α degrees from one another towards the hand wheel side, the web being connected at its respective ends with a base and an upper arm both of which are rectangular in cross-section and which taper at an angle of α degrees towards their free ends. The frame is cast in a mould having an outer part 27 and a core 28 which is withdrawn, after casting, in a longitudinal direction inclined both to the horizontal and to the vertical at an angle of α/2 degrees.
Patent GB-1247468-A (GB)
Title: An improved suspension filing folder
Inventor: OHLSON KURT LENNART
IPC: B42F15/00
Filed: 1970-06-09
Abstract: 1,247,468. Filing papers &c. K. L. OHLSON. 9 June, 1970 [16 June, 1969], No. 27871/70. Heading B6E. A suspension filing folder comprising a pair of covers 2, 3, Fig. 1, articulated to each other by a spine 1 is provided along the upper edges adjacent the spine with respective suspension devices 6, 7 each formed by a plastics plate member having a suspension nose (6c, Fig. 4) below which extends a horizontal dove-tailed groove 6a, Fig. 3, intended for location therein of the upper part of the folder which is also provided with spaced apertures 2c, in which are received offset tongues 6b depending from the lower edge of the groove. The folder is also provided in one of the covers 2 with spaced slits 21, 22 and 24, 25 associated with respective common corners 23 and adapted to receive plastic bands 10, 9, serving to hold the folder in its closed condition. The spine of the folder is provided with an array of circles which may be coloured or associated with indexing indicia.
Patent GB-500815-A (GB)
Title: Extension ladder
IPC: E06C1/12
Filed: 1937-10-14
Abstract: 500,815. Extension ladders. HUM BOLDT-DEUTZMOTOREN AKT.-GES., and HUMMEL, A. Oct. 14, 1937, No. 28004. Convention date, Oct. 14, 1936. [Class 20 (ii)] An extension ladder has each side of the ladder sections formed of a modified S-shaped profile of sheet metal, to provide adequate guiding surfaces for guide rotters on the sections. The side string of each ladder section comprises a central web portion 2 with outer flange 1 and inner flange 3 provided with an extension web 4 and reverse flange 5 with turned-over edge 6. the ends of the rungs 9 of the sections are welded to the inner portions of the web 2 and rest on the inner side of the flanges 3 and are provided with brackets 8 to carry rollers 7 against which abut the flanges 5 of the adjacent ladder sections. Further rollers 13, Fig. 3, fixed to brackets 12 on the sliding sections are received in the inner portions of the webs 2 of adjacent sections and bear against these webs, and at the feet of the sliding sections other rollers 11, Fig. 4, are provided, bearing on the inner faces of the outer flanges 1 of the adjacent ladder sections. At the upper part of each guiding ladder, outer lateral guiding rolls 15 carried by brackets 14, project through apertures in the side strings to bear against the outer edges of the flanges 5 of the adjacent sliding ladder sections. Struts and diagonal braces 16 for each ladder section are welded to the outside portions of the webs 2 and to the flanges 5 and form stiffeners for the side strings. These braces are connected at their outer ends to the bracing arches 17.
Patent GB-839340-A (GB)
Title: Servo pump unit
IPC: F04B23/10
Filed: 1957-09-05
Abstract: 839,340. Reciprocating pumps. NEW YORK AIR BRAKE CO. Sept. 5, 1957 [Oct. 11, 1956], No. 28038/57. Class 102(1). [Also in Group XXIX] Upon depressing an input rod 23, Fig. 3, a valve plunger 85 is moved leftwardly so that fluid from a gear pump 99, Fig. 2, driven from the main swashplatepump input-shaft 32 that is connected to a prime mover, flows via a pipe 98, ports 92, 95, Fig. 3, and a conduit 97 to a chamber 63, Fig. 2 ; concomitantly another chamber 62 is connected to a sump in the pump housing by a conduit 96, Fig. 3, ports 94, 91 and a conduit 103. The pressure differential between chambers 62, 63, Fig. 2, causes leftward and rightward motion, respectively, of reversing valves 58, 57, which produces pivotal movement of a rocket 64 ; this valve operation connects a pressure chamber 76 to one motor port 83 and a return chamber 77 to the other motor port 75, the chamber 76 being connected to the swashplate pump discharge port 46 whilst chamber 77 is open to a reservoir..As the rocker 64 pivots its lower end displaces a saddle 52 and bleed valves 48, one such valve being associated with each hollow swashplate pump piston 35, to control the effective stroke thereof. Pivoting of the rocker 64 is also transmitted through a shaft 65 and an eccentric pin 104 to a sleeve 86, Fig. 3, that houses the plunger 85, the sleeve being translated leftwardly to a lapped position relative to the plunger thereby preventing flow to and from chambers 63 and 62, Fig. 2, respectively, so locking the reversing valves 57, 58, rocker 64 and bleed valves 48. When the motor has moved the desired amount the rod 23, Fig. 3, is replaced in the neutral position and enables the reversing valves to return to their neutral positions so reducing the pump displacement to its minimum value and interrupting flow to and from the motor. Rod 23 may be remotely operated in which case a feedback between a motor and rod would be provided. The saddle spring 54, Fig. 2, may be replaced or augmented by hydraulic loading obtained by connecting a conduit 109 to a conduit 98, Fig. 3, instead of the pump lowpressure chamber 42. Prior to the pump operation the rocker 64 is axially adjusted so that in the neutral position the reversing valves 57, 58 are lapped and in contact with the rocker ; this adjustment is effected by rotating a shaft 69, which, through an eccentric 68 thereon, moves the spring- loaded bearings 66, 67 of rocker shaft 65, after which the shaft 69 is locked by a pin 106. A screw 107 is then rotated to bring valve plunger 85 into a lapped position in sleeve 86 and the rod 23 is correspondingly adjusted. The saddle 52, Fig. 2, is shimmed to locate the bleed valves 48 and provide zero or a small positive pump displacement.
Patent GB-352321-A (GB)
Title: Improvements in floors for coke quenching cars
IPC: C10B39/14
Filed: 1930-09-19
Abstract: 352,321. Coke-quenching cars. KOPPERS CO., Koppers Building, Pittsburg,' U.S.A.-(Assignees of Greg, V. V. ; Koppers Building, Pittsburg, U.S.A.) Sept. 19, 1930, No. 28070. Convention date, Nov. 13, 1929. [Class 51 (ii).] A floor for coke quenching cars comprises a plate structure resting on a supporting structure and means coacting with the supporting structure to permit limited lateral movement and prevent upward displacement of the plate structure. The supporting structure comprises inverted rails or beams 2 and cross-bars 3 fastened above the rails by bolts 4. The plate structure comprises a plurality of plates 1 each having dimensions approximately equal to the centre-to-centre distance between adjacent rails and cross-bars upon which it is supported by side flanges 6 and end flanges 7. Each plate is also provided with a longitudinal central flange 9 and two transverse flanges 8. Since the top surfaces of the cross-bars are higher than those of the rails the end flanges 7 and the ends of the side flanges 6 are of less depth than the greater part of the side flanges 6 which project between the cross-bars to rest on the rails. This projecting portion also limits the longitudinal movement of the plate. Transverse movement is limited by lugs 11 extending downwardly from the transverse flanges 8 and engaging the side edges of the rails 2. Upward displacement of the plates is prevented by clips 12 fastened to the ends of the central flange 9 and projecting under the cross bars 3. Any plate may be removed by unbolting the two clips attached to the central flange. The entire floor structure 16 is supported on a wheeled framework 18 at an angle of approximately 30‹ from the horizontal and is provided at the lower end with a side wall 21 having doors 22.
Patent GB-869565-A (GB)
Title: Insulating material
IPC: A41D31/00
Filed: 1959-08-17
Abstract: An organo polysiloxane elastomeric foam is made by mixing 100 parts of hydroxyl-endblocked dimethylpolysiloxane of viscosity at 25 DEG C. of 1300 cs., 10 parts of trimethylsiloxy-endblocked methylhydrogen-polysiloxane of viscosity 23 cs., 10 parts of diphenylmethyl-silanol, 10 parts of hydroxyl-endblocked dimethylpolysiloxane of viscosity 50 cs., 15 parts of hexabrombenzene as a fire retardant, 20 parts of diatomaceous earth, and 6 parts of stannous octoate.  The mixture foams at room temperature. Specifications 608,956, 788,598, 798,669, 832,488, 867,619 and U.S.A. Specification 2,956,032 are referred to.ALSO:An organopolysiloxane elastomeric foam is made by mixing 100 parts of hydroxyl-end-blocked dimethyl-polysiloxane of viscosity at 25 DEG C. of 1300 c.s., 10 parts of trimethyl-siloxy-endblocked methyl hydrogen-polysiloxane of viscosity 23 c.s., 10 parts of diphenyl methyl silanol, 10 parts of hydroxyl-endblocked dimethyl polysiloxane of viscosity 50 c.s., 15 parts of hexabrombenzene as a fire retardant, 20 parts of diatomaceous earth, and 6 parts of stannous octoate.  The mixture foams at room temperature. Specifications 608,956, 788,598, 798,669, 832,488, 867,619 and U.S.A. Specification 2,956,032 are referred to.
Patent GB-1094917-A (GB)
Title: Improvements in or relating to apparatus for transporting flat articles such as letters, postcards and the like
IPC: B65H3/46
Filed: 1966-06-23
Abstract: 1,094,917. Endless conveyers. SIEMENS A.G. June 23, 1966 [June 24, 1965 (3)], No. 28108/66. Heading B8A. Articles A, B, C . . . of letter mail are drawn from a stack 1 by an endless conveyer belt 2 of air permeable material when a valve 11 is operated to apply suction from a line 15 to a chamber I. By operating valves 11, 14 and 19 sequentially under the control of a shift register (not shown) and scanning devices 13, 22, the letters may be progressively forwarded by the action of the belt and chambers I, II and III. Vacuum selectively applied at nozzles 20 and 21 may prevent multiple transfer. The nozzles 20 (21) may be replaced by ports (26), (27) (Fig. 4, not shown). When a letter is too small to activate a scanning device (28), only ports 26 are energized. Initial energization of the ports (26), (27) causes a letter to tilt into the dot-dash position of Fig. 4. Vacuum is then momentarily released to allow the letter to drop into correct position for a reading operation.
Patent GB-190308-A (GB)
Title: Improvements in tool rests for use with grindstones and the like
IPC: B24B41/06
Filed: 1921-10-24
Abstract: 190,308. Ryder, A., and Richardson, B. Oct. 24, 1921. Disc apparatus; rests.-A tool-rest b is positioned adjacent to a grindstone &c. a by being attached to a pair of independent two-armed supports c, which are pivoted at e to separate baseplates h adjusta.bly secured to the upper surface of a trough d. Screws c<2> in the supports c abut against the plates h and resist the tendency of the rest to be pushed towards the stone, while allowing it to turn away from the stone in the event of any obstruction coming therebetween or of any other reason.
Patent GB-503242-A (GB)
Title: Improvements in appliances for scoring games
IPC: A63D15/20
Filed: 1937-10-16
Abstract: 503,242. Scoring-apparatus for games. LINDEN, W., and DEELEY, W. H. Oct. 16, 1937, Nos. 28186/37 and 29960/38. [Class 132 (ii)] An appliance for scoring billiards or other games comprises a casing containing electric lamps for illuminating numberbearing windows which may be individually masked or exposed by movable shutters to display the desired illuminated information. As shown, a set of illuminated windows 8 is provided for each player designated for example " Spot " and " Plain " and each window is provided with a sliding shutter 11 which may be adjusted by a knob 13. At the commenoement of a game, the shutters are all brought into the window-masking position by sliding a frame 18, 19 to the right, the bars 19 of the frame engaging the knobs 13 to slide the shutters. The frame is then returned. As scores are made, the appropriate slide, as designated by opaque guide numerals 5 adjacent the illuminated numerals, is moved manually to display the corresponding illuminated numbers, for example as shown by shading for the numbers 2 and 23. The hundreds are scored by a similar arrangement of shutters 14 and illuminated windows 16. The shutters instead of sliding may be arranged to move on hinges, or may be operated mechanically or electrically as from a key-board. In a modification, Fig. 9, the score numbers may be arranged on the sides of a glass prism 28 illuminated from the interior and rotatable about a vertical axis to bring the appropriate column of numbers to the front immediately behind the sliding shutters 11. Instead of arranging the consecutive numbers in colunms they may be arranged horizontally.
Patent GB-280184-A (GB)
Title: Process for the production of acetone
IPC: C07C45/26
Filed: 1927-10-24
Abstract: 280,184. Holzverkohlungs-Industrie Akt.-Ges. Nov. 4, 1926, [Convention date]. Acetone.-In the manufacture of acetone by the catalytic interaction of acetylene and steam at a high temperature, the catalyst is a heavy metal oxide the activity bf which is increased by the addition of a promoter, the composition of the contact mass being so adjusted that its oxygen tension, at the reaction temperature, is so close tc the partial pressure of oxygen in the reaction mixture that substantial reduction or substantial oxidation of the catalyst does not take place. A heavy metal is refined as a metal having a specific gravity above 5.5. A suitable catalyst is iron oxide, and suitable promoters are metals and their oxygen-containing compounds, such as iron, manganese oxide, aluminium oxide, barium carbonate, zinc carbonate, lime, and magnesia, and it is preferred to use the catalyst and the promotor on a metallic carrier. The partial pressure of oxygen in the reaction mixture should be between 10-<30> and 10-<32> atmospheres at a reaction temperature of 400‹ C., and between 10-<25> and 10-<27> atmospheres at a temperature of 500‹ C.; the reaction may be performed, however, at a temperature of 250-750‹ C., and it is preferred to begin the reaction at a comparatively low temperature and gradually to raise the temperature continuously or in stages. It is preferred also to use 4-15, particularly 5-10, volumes of steam with each volume of acetylene. According to the examples, (1) a mixture of acetylene and steam in the molecular proportions of 1 : 10 is passed through an iron pipe containing rusty iron shavings at a temperature of about 500‹ C.; (2) a mixture of acetylene and steam in the proportions by volume of 1 : 10 is passed (a) through a pipe containing iron shavings coated with iron and manganese oxides at a temperature of 475‹ C., and (b) through an iron pipe containing iron shavings coated with iron oxide and barium carbonate at a. temperature of 470‹ C. Specification 109,983 is referred to.
Patent GB-300000-A (GB)
Title: Improvements in electric lamp bracket fittings
IPC: F21V21/08
Filed: 1927-10-25
Abstract: 300,000. Hamlyn, S. W. Oct. 25, 1927. Clips and clamps, pivoted - jaw - An electric lamp support having a base 2 is provided with a spring influenced clip device comprising a pair of plates 6, 8, or wire frames, adapted to fold on to one another and on to the base, and to co-operate with the base, when opened out, to provide a gripping mouth or socket to take on to an article or structure. In the form shown, the plates 6, 8 are adapted to fold into the hollow of the base 2 and the plate 6 may be spring-pressed so that the clip will close automatically into the base when released. The plate 8 is covered with cloth, rubber or other material as by means of a rubber sleeve 10. The plate 6 and the rim of the base 2 may also be covered. A plate 11 covered with a rubber or other cushion sleeve 13 is pivoted to the base 2 so as to cover the clip within the base and provide a cushion surface when the clip is in use.
Patent GB-676600-A (GB)
Title: Improvements in nozzles for spraying paint air jets or the like
IPC: B05B7/08
Filed: 1950-11-20
Abstract: 676,600. Spray-producers. AKTIEBOLAGET ATLAS DIESEL. Nov. 20, 1950 [Dec. 10, 1949], No. 28371/50. Class 69 (iii). A nozzle of the type having a central orifice for a paint-air jet of circular cross-section which is impinged by auxiliary air jets from orifices lying on opposite sides thereof, is characterized in that all the orifices are formed in a portion of the nozzle forming a front wall of a mixing chamber for air and paint in which a valve-controlled paint nozzle is provided with its opening a short distance behind the said wall, the paint-air jet being impinged by pairs of auxiliary air jets and/or by at least one pair of flattened auxiliary air jets. In Fig. 1 a valvecontrolled paint nozzle 1 is arranged within a mixing chamber 9 supplied with air from passages 10, and the paint-air jet issues from an orifice 8. A separate air supply from a valve-controlled passage 20 passes from a passage 21 to converging passages 13, 14 in the opposed horns 12. Air from the passage 13, 14 converge to form flattened jets 17 which impinge the main jet. In Fig. 3 air jets 29, 30, 33 converge to form an opposing pair of flattened jets 34 acting on the main jet, which is also impinged by converging jets 26. In a further embodiment, Fig. 5, the main jet is acted upon by pairs of converging jets 39, 42 and 45.