baber/WOPTO huggingface dataset:
Patent GB-498217-A (GB)
Title: Improvements in gas-fired furnaces
IPC: F27B9/36
Filed: 1937-11-15
Abstract: 498,217. Gas-fired furnaces. SIEMENS, F. C. Nov. 15, 1937, No. 31295. [Class 51 (i)] In a gas-fired furnace through which articles to be heated are traversed in a direction opposite to that of the products of combustion, the high temperature zone c is heated by burners m which are supplied with air or gas or both air and gas from directly fired " regenerators '' n arranged beneath the furnace. In the arrangement shown in the Figure, two " regenerators " n are arranged side by side for heating air. The low temperature zone e is heated by burners h supplied with fuel and air from recuperators f through which pass the waste gases. Part of the air heated in one of the " regenerators " n, which are fired alternately by burners q, passes directly to the furnace through the passage r and the remainder passes to the other " regenerator " n which is being fired. In a modification the burners of the high temperature zone are supplied with fuel which has been heated in the recuperator f. In a further modification the chambers n are of small dimension and the hot gases pass therefrom to the recuperators.
Patent GB-199322-A (GB)
Title: Improvements in or relating to fittings for trouser braces
IPC: A41F3/02
Filed: 1922-11-16
Abstract: 199,322. Baxenden, T. G., and Brewster, B. R. Nov. 16, 1922. Braces.-In tab end fittings of the type in which a cord runs over a pulley or the like, the main plate a, Figs. 3 and 4, has a tongue b folded backwards to enclose the loop g and to form the usual spring for the tail of the hinged clasp h. The tongue b lies in a recess in the main plate, as shown. The lower part of the plate is stamped to form one portion e of a fixed runner, the other portion f being made separately and fixed thereto.
Patent GB-1012627-A (GB)
Title: Process for the production of cyclic amines
IPC: C07D211/70
Filed: 1961-12-19
Abstract: Cyclic amines are produced by the saponification of an addition product, containing one urethane group, produced in the presence of an acidic catalyst, from an alkylidene diurethane and an unsaturated compound capable of reacting as a diene in a Diels-Alder reaction, such addition products being described in Specification 1,001,492. In addition, the compounds of formula <FORM:1012627/C2/1> where R1 is alkyl, phenyl, aminophenyl, chlorophenyl, alkylphenyl or alkoxyphenyl and R11 is alkyl, are claimed as novel.  Where the addition product contains NO2 or double bonds these may be hydrogenated before the saponification. Examples prepare (1) 2-phenyl-4-methyl - 1,2,3,6 - tetrahydropyridine, (2) 4-methyl - 1,2,5,6 - tetrahydropyridine, (3) 3,4-dimethyl - 1,2,5,6 - tetrahydropyridine, (4) 1,2,3,4,5,6,7,8 - octahydroisoquinoline (and its hydrochloride), (5) 1,2,3,4,5,6,7,8,9,10,11, 14-dodecahydrophenanthridine, (6) 3 - phenyl-1,2,3,4,5,6,7,8 - octahydroisoquinoline, (7) 2-(o-aminophenyl) - 4 - methyl - 1,2,3,6 - tetrahydropyridine, (8), (9) 2 - (p - aminophenyl) 4 - methyl - 1,2,3,6 - tetrahydropyridine, (10) perhydroisoquinoline, (11) 2 - phenyl - 1,2,5,6-tetrahydropyridine and (12) 2 - R - 4 - methyl-1,2,3,6 - tetrahydropyridines in which R is p-tolyl, p-chlorophenyl, 2,6-dichlorophenyl, 3,4-dichlorophenyl, o-methoxyphenyl, and o-chlorophenyl. Many aldehydes are specified from which the alkylidene diurethanes may be prepared, and also many suitable dienic compounds, including cyclic dienes, ergosterols and compounds in which one of the double bonds is attached to a hetero-atom, e.g. C=0.  Specification 1,001,492 is referred to.
Patent GB-1417665-A (GB)
Title: Pyrotechnic tensioning device for a safety belt
IPC: B60R22/28
Filed: 1974-07-16
Abstract: 1417665 Seat belts SOC NATIONALE DES POUDRES ET EXPLOSIFS 16 July 1974 [3 Aug 1973] 31442/74 Heading A3V A pyrotechnic tensioning device for a safety belt comprises a piston and cylinder containing a charge to move the piston along the cylinder, and elements e.g. balls 24, in an annular groove 23 in the piston, which damp return movement of the piston. The balls move up the sloping bearing surface 23b and when the piston is pulled strongly enough the balls deform the cylinder walls by gouging grooves along its inside surface. The piston rod 6 is attached to an end of the safety belt, and the cylinder to the floor of the vehicle. When an electric pulse from an impact detector fires micro-ignition devices 12 the main charge 10 ignites and forces the piston to the right. If the pressure rises above a predetermined limit due to e.g. the belt becoming tight round the wearer, the gas passes through passages 26 and 27 in the piston and blows out a plug 16 from the piston and the dust cover 4 past the venting holes 3 to escape therethrough. In modifications a second cylinder may be provided outside the first one with damping elements between them provide a telescopic two-stage damping effect. In this case the damping elements may be balls as 'before, or pointed fins to gouge grooves in the outer cylinder.
Patent GB-742563-A (GB)
Title: Improvements in and relating to process for the catalytic reforming of gasoline hydrocarbons
Inventor: HAENSEL VLADIMIR
IPC: C10G59/06
Filed: 1953-11-16
Abstract: Gasoline hydrocarbons are catalytically reformed by first fractionating the hydrocarbons into a high and low boiling fraction, reforming said fractions separately at temperatures within the range of 400-540 DEG  C. and at a hydrocarbon partial pressure of 2-27 atmospheres absolute, in the presence of added hydrogen and a catalyst comprising platinum and alumina, and reforming the high boiling fraction at a hydrogen partial pressure substantially within the range of 13.5-82 atmos., and reforming the lower boiling fraction at a hydrogen partial pressure substantially within the range of 8.5 to 68 atmos. and lower than that applied in the reforming of the high boiling fraction and subjecting the lower boiling fraction to an intensity of reforming conditions which is at least ten times as great as that employed in the case of the high boiling fraction.  The relative intensity (R.I.) is defined as: <FORM:0742563/IV(a)/1> where PGL is the partial pressure of the lower boiling fraction in the zone in which said fraction is reformed; PGH is the partial pressure of the high boiling fraction; PH2H is the hydrogen partial pressure in the zone in which the high boiling fraction is reformed; PH2L is the hydrogen partial pressure in the zone in which the low boiling fraction is reformed; TL is the temperature in the zone in which the lower boiling fraction is reformed; TH is the temperature where the higher boiling fraction is reformed; XL is the halogen concentration of the catalyst in the zone in which the lower boiling fraction is reformed in gram equivalents per 100,000 grams of catalyst; XH is the corresponding figure for the high boiling fraction.  The catalyst is preferably one that contains from 0.05 to 5.0 per cent by weight of platinum and 0.1 to 8.0 per cent of halogen, preferably chlorine or fluorine.  The reforming temperature may be between 400 DEG  and 540 DEG  C.  In an example, a straight run gasoline having a boiling range of 38 DEG  to 204 DEG  C. was fractionated at 93 DEG  C. and the two fractions reformed separately either in separate reaction zones or successively in the same reaction zone using a platinum-alumina-halogen catalyst. Preferred conditions are, for the light fraction, temperature 499 DEG  C., total pressure 20.4 atmospheres, and mol. ratio, hydrogen to hydrocarbon 4:1; and for the heavy fraction, temperature 493 DEG  C., pressure 34 atmospheres, and mol. ratio 6:1.
Patent GB-982304-A (GB)
Title: Chromatography apparatus
IPC: G01N1/18
Filed: 1961-09-04
Abstract: 982,304. Chromatographic apparatus. CESKOSLOVENSKA AKADEMIE VED. Sept. 4, 1961 [Sept. 3, 1960], No. 31719/61. Heading B1X. Chromatographic apparatus comprising a piston pump 1, a conduit connecting the outlet of said piston pump with the chromatographic column 3 and an electromechanical device 6 providing a signal when the piston pump has executed a predetermined number of strokes for controlling or warning of the necessity to exchange collecting receptacles. As shown in Fig. 1, when a predetermined amount of fluid has been delivered by pump 1 a signal from device 6 actuates bell 8. The bell may be replaced by a device for automatically replacing a receptacle, Fig. 2 (not shown).
Patent GB-430466-A (GB)
Title: Improvements in or relating to waterless gas holders
IPC: F17B1/04
Filed: 1934-11-05
Abstract: 430,466. Gas holders; tanks. DRY GASHOLDERS, Ltd., 39, Victoria Street, London.-(Klonne, A., [Firm of] ; Dortmund, Germany) Nov. 5, 1934, No. 31755. [Classes 54 and 69 (i)] The closing piston of a waterless holder for gas, vapour, or volatile liquids is provided with a skirt sufficiently deep to provide the whole or a substantial part of the ballast necessary to provide a righting movement should the piston tilt, the usual central ballast container being dispensed with. The Figure shows such a piston having a long skirt 3 which is sufficiently distant from the holder wall 1 to provide a broad service space 4 allowing ready access to the sealing packing and its weighted pressure levers which may be constructed as described in Specification 393,887. The guide rollers 11, 12 engaging the holder wall are mounted on vertical posts 13 which are spaced regularly around the annular space 4 and are connected to the piston by bracing bars 14, 15, 16, 17. A stiff angle ring 18 secured between the posts 13 and the top bars 14 relieves the top of the piston from the localized pressure of the rollers 11. Ladders and landings are provided in the space 4 leading to the platform 9 which may be fitted with containers 22 to receive additional ballast if the centre of gravity G is to be lowered still farther from the centre of pressure M or a higher pressure of the gas is required. In a gas holder 250 feet in height and 180 feet in diameter the skirt would be of a depth of at least 22 feet and the space 4 from 6 to 10 feet wide.
Patent GB-1381506-A (GB)
Title: Edge connector assembly
IPC: H01R12/50
Filed: 1971-07-07
Abstract: 1381506 Edge connectors ROSS COURTNEY & CO Ltd 7 June 1972 [7 July 1971 2 Sept 1971] 31902/71 and 41035/71 Heading H2E Contacts 12 fit in cavities 25 in a housing section 14 and are clamped in place by a second housing section 13. Each contact comprises a base 15, two arms 16, 17 bent through at least 270 degrees to contact a conductor on one or each side of a board 38, and a portion 18 which is crimped to a wire 20 before the contact is fitted in the housing 13, 14. The board 38 has slots 55 to accommodate the portions 15 of the contacts. The slots 55 and the contacts 12 can be arranged asymmetrically to prevent incorrect insertion. The housing sections 13, 14 are moulded of ABS or polypropylene, are held together by rivets, eyelets, bolts or ultrasonic welding, and may be fixed to a support. Ribs 31 provide strength and easy gripping. In assembly, the contacts are held in position by a mounting board while the housing sections are fitted. In another embodiment (Fig. 6, not shown) the contacts (53) are of right-angle form and the board (54) fits into a slot (63) in one housing section (60) at right angles to the plane in which the two housing sections are joined.
Patent GB-964194-A (GB)
Title: Improvements in double beat lift valves
IPC: F16K11/16
Filed: 1962-08-20
Abstract: 964,194. Valves. CONCORDIA MASCHINENUND ELEKTRIZITATS G.m.b.H. Aug. 20, 1962 [Oct. 30, 1961], No. 31915/62. Heading F2V. A double-beat valve has one closure member 18 fixed on its spindle 16 whilst the other 19 is axially movable along the spindle against the action of resilient means 21, the movable closure member co-operating telescopically with a member 17 rigid with the spindle to form a chamber which has a cross-sectional area equal to that of a port 8 and is subjected through a bore 30 to the pressure at an inlet port 4. In the preferred embodiment, each closure member has fixed and movable parts, the fixed parts cooperating with outlet ports 7, 10 and the movable parts with inlet ports 8, 9. The positions of the inlet and outlet ports and of the fixed and movable parts of the closure members may be reversed.
Patent GB-780305-A (GB)
Title: Improvements in or relating to automatic variable torque hydraulic transmission
IPC: F16H61/448
Filed: 1954-11-04
Abstract: 780,305. Rotary pumps and motors. BERRY, F. Nov. 4, 1954, No. 31965/54. Class 110 (2). [Also in Group XXIX] In an hydraulic transmission system as described in Specification 780,306, the rotors of the hydraulic abutment motor are provided for each section with pistons which are retractable under low pressure conditions, when a section or sections is or are inoperative, so that unnecessary fluid circulation is avoided. The pistons are projected under fluid pressure when it reaches a predetermined amount and the controlling valve simultaneously brings the section or sections into operation. Each piston 78 is mounted on a rod 130 carrying a smaller piston 129 on its opposite end which is urged inwardly within a bore 124 in the rotor 74, 78a by a spring 137. A duct 140 communicates with the pressure liquid delivered from the pump which liquid serves to project the piston outwardly against the action of the spring when a predetermined pressure is reached. Specification 780,307, [Group XXIX], also is referred to. Reference has been directed by the Comptroller to Specification 610,068.
Patent GB-967430-A (GB)
Title: Improvements in or relating to plasma research apparatus
IPC: H05H1/12
Filed: 1963-08-13
Abstract: 967,430. Thermonuclear apparatus. GENERAL DYNAMICS CORPORATION, Aug. 13, 1963 [Aug. 20, 1962], No. 32002/63. Heading G6P. Apparatus for confirming plasma comprises means for providing alternate interconnected convex and concave magnetic confining fields about an area where the plasma is to be confined, and additional means in each of the concave fields for providing an additional convex magnetic field between each pair of the first mentioned convex fields so that the plasma area is encircled by a series of convex fields, the total magnetic field strength in the space defined between the additional means and the portion of the first mentioned means which provides the concave field being made substantially greater,than that of the first mentioned convex magnetic field to thereby stabilize the plasma. Referring to Fig. 2 a toroidal copper jacket 10 is internally corrugated to provide alternate longitudinal ridges 16 and grooves 18. A rod 14 is mounted within each groove 18 and when current is induced in the rods 14 and in the jacket 10, the current in the jacket 10 provides the alternate convex and concave magnet fields whilst the currents in rods 14 provide the additional convex magnetic fields. When no current is flowing the rods may be supported against gravity by retractable pins 24; when the magnetic fields are established the rods are maintained in position by the magnetic field and the pins are retracted by solenoids 26. Current is induced in the rods 14 by a coil (not shown in Fig. 2) encircling the toroid. The coil is provided with an iron core and is surrounded by a copper housing provided with a gap adjacent the toroid; at this gap the housing is joined to a pair of flanges which bound a gap in the toroid 10. Because of the unequal lengths of rods 14, the current density required in the jacket wall 10 is greater round the short rods than round the long rods. This is achieved by proper distribution of the turns of the coil, by tapering the gap between the flanges towards the major axis of the torus, and by providing perforations in the flanges to ensure the proper distribution of current flow lines on their surfaces. The jacket 10 is provided with a number of perforations, which may amount to 25% of the surface, communicating with a manifold 56 surrounding the jacket and maintained at a vacuum of 10<SP>-8</SP> mm. Plasma is injected into the the jacket 10 by a plasma gun 58 to establish a particle density of 10<SP>15</SP> per cm<SP>3</SP>. For stability the square of the ratio of the magnetic intensity at the bottom of a groove 18 to the intensity adjacent a ridge 16 should be less than half the ratio of half the gap width between a rod 14 and groove 18 to the radius of the groove less half the gap width.
Patent GB-861510-A (GB)
Title: Apparatus for flame cutting and welding
Inventor: SIMS-DAVIES GEOFFREY
IPC: F23D14/54
Filed: 1958-10-08
Abstract: 861,510. Blowpipe burners. BRITISH OXYGEN CO. Ltd. Sept. 30, 1959 [Oct. 8, 1958], No. 32087/58. Class 75 (1). A torch body 10 has a nozzle receiving socket 14 which is contoured to receive identical head portions of at least one cutting nozzle 19 and at least one welding nozzle 32, and which has three separate inlet passages 15, 16, 17, two being for oxygen and one for fuel. In the cutting nozzle, a cutting oxygen passage 25 registers with one inlet passage 15 which is for oxygen, while the other two inlet passages, 16, 17, which are for oxygen and fuel gas respectively, register with appropriate passage openings 27, 29 in the cutting nozzle. In the welding nozzle, an oxygen passage 34 registers with the inlet passage 17, while the second oxygen passage 16 is blocked by the welding nozzle to prevent the flow of oxygen.
Patent GB-1461900-A (GB)
Title: 2-propanol-5-methyl-1,3-dioxanes
IPC: C07D319/06
Filed: 1975-07-31
Abstract: 1461900 2 - (2<SP>1</SP>- and 3<SP>1</SP> - Propanol) - 5- methyl-1,3-dioxane E I DU PONT DE NEMOURS & CO 31 July 1975 [31 July 1974] 32118/75 Heading C2C The invention comprises 2-(2<SP>1</SP>-propanol)-5- methyl - 1,3 - dioxane and 2 - (3<SP>1</SP> - propanol)- 5-methyl-1,3-dioxane; their preparation by hydroformylating 2 - vinyl - 5 - methyl - 1,3- dioxane (suitably made by reacting 2-methyl- 1,3-propanediol with acrolein) suitably using as catalyst, a rhodium carbonyl complex and a phosphite P(OR<SP>1</SP>)(OR<SP>2</SP>)(OR<SP>3</SP>) where each of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is C 1-12  alkyl or phenyl; and the preparation of 1,4-butanediol (with the formation of 2-methyl-1,3-propanediol, which can be separated and recycled, as by-product) by hydrolysing and hydrogenating the compounds of the invention. In an example of the hydroformylation reaction, small amounts of 2-ethyl- 5-methyl-1,3-dioxane were formed.
Patent GB-307098-A (GB)
Title: End supports for window blind rollers and curtain rods
IPC: E06B9/50
Filed: 1927-12-01
Abstract: 307,098. Nevatt, C. Dec. 1, 1927. Brackets, securing; roller blinds; curtain rods. -An end bracket for supporting a curtain rod and blind roller consists of a projecting flange or flanges adapted to receive the rod and roller, an attaching part situated directly behind the rod and roller and formed with keyhole slots or slots opening into the side of the bracket so that the brackets can be detached from the window frame without the removal of the fixing screws. In the construction shown in Figs. 4, 5, the bracket consists of two projecting flanges 1, 2, connected by an attaching part 3 provided with a keyhole slot 4 and an open slot 6. The outer flange 1 is recessed at 16, the recess being formed with a laterally extending flange 17 to form an extended bearing surface for the one end of the roller which is provided at this end with ratchet wheel, held thereon by a spring washer, engaged by a pawl 18 pivoted on a pin 19 extending between the flanges 1, 2. The outer flange 1 of the bracket, shown in Figs. 7, 8, for the other end of the roller is provided with a pin 11 which enters into a recess in the end of the roller. Thit flange 1 is also provided with an upper projection 13 to retain the operating cord of the roller and a lower projection 12 having an open keyhole slot 15 for guiding the operating cord, the arrangement being such that the cord normally lies at the closed end of the slot. The shorter inner flange 2 of each end bracket is formed with a hole 10 to receive a curtain rod which is provided at one end with a spring pressed plunger. In a modification each bracket has only one projecting flange to support the rod and roller.
Patent GB-397824-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F02G5/00
Filed: 1931-11-23
Abstract: 397,824. Regulating. SELCO MOTOR CO. AKTIEBOLAGET, 16, Kungstradgardsgatan, Stockholm. Nov. 23, 1931, No. 32436. Convention date, Nov. 21, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 7 (ii) and 7 (vi).] With engines employed on aircraft use is made of the exhaust from some cylinders or engines when flying at great heights, by converting some of the power or pump cylinders into expansion cylinders wherein the exhaust from the remaining power cylinders may be employed. In a multi-cylinder four-stroke engine the cam shaft is slidable axially so that the cylinder may be changed over in succession to compound working ; when all the cylinders are so changed the exhaust must be taken from some other engine. In two- or four-stroke engines with coaxial air pumps the power cylinder and, if desired, some of the pump chambers may be changed over by suitable valves in the piping ; when working with exhaust some of the chambers may be freely open to the atmosphere to allow to-and-fro cooling movement of the air and pump chambers may be specially cooled when working with exhaust. In one form with coaxial working cylinders 61, Fig. 12, charge is normally supplied by the double-acting pump 63 which delivers to a pipe 66 connected to the power cylinder inlet pipes 67 ; exhaust is by the pipes 68. To change over the cocks 70, 72, 73 are turned through 90‹ and exhaust from another engine supplied by the pipe 74 to all the chambers. In a two-stroke-cycle engine with terminal exhaust ports special inlet and exhaust valves are arranged in the cylinder head for compound working and the terminal ports are closed ; the coaxial pump in this arrangement then also works on waste gas. The change-over and the control of the valves of the engine may be effected hydraulically or electrically. Power plant.-The exhaust may be used in a turbine or reciprocating engine to drive an Independent propeller through reducing gear ; or a turbine or reciprocating engine 111, Fig. 16, drives on the main propeller shaft through reducing gear 112 and clutch 116. If desired the main engine may be disconnected by the clutch 117 from the propeller which is then driven only by the waste gas engine 111 supplied with power from the main engine.
Patent GB-813411-A (GB)
Title: Improvements relating to electrical pyrometers
Inventor: BIRNSTINGL DAVID WILDON
IPC: G01J5/00
Filed: 1956-10-24
Abstract: 813,411. Electrical pyrometers. BRITISH THOMSON HOUSTON CO. Ltd. Oct. 24, 1957 [Oct. 24, 1956], No. 32439/56. Class 40 (3). Apparatus for indicating a variation in radiant energy emitted from different regions of a body or bodies, e.g. from point to point on a moving wire 1 comprises a detector 5 which is rocked by a cam 10 so as to receive radiation alternately from the wire 1 and a body 4 at constant temperature, and a cathode-ray tube 12 having its beam deflected by plates 13 along one axis corresponding with the region being sensed and by plates 15 along the other axis in response to the radiation received. The plates 13 are connected to a rheostat 14 controlled by the cam 10. The detector 5 has a narrow slit through which radiation passes to a lens and a thermal responsive device.