baber/WOPTO huggingface dataset:
Patent GB-1469830-A (GB)
Title: 7-alkoxy-cephalosporin and 6-alkoxy-penicillin derivatives
IPC: C07D501/57
Filed: 1974-09-02
Abstract: 1469830 7-Alkoxy-cephalosporin and 6- alkoxy-penicillin derivatives SANKYO CO Ltd 2 Sept 1974 [7 Sept 1973] 38289/74 Heading C2C The invention comprises 2 or 3-cephem compounds having an alkoxy group in the 7α- position and the group at the 7#-position and penam compounds having an alkoxy group in the 6α-position and the group at the 6#-position, wherein Ar is monocyclic or fused polycyclic benzenoid-ring system which may be substituted, such that the group OH is in a position conjugated with the group -CH=N-, and n is 1 or 2. They may be obtained by treating a 7-benzylideneaminocephem compound or a 6-benzylideneaminopenam compound which is capable of oxidation to a quinoid form with an oxidizing agent (said oxidizing agent being capable of converting said compound to its quinoid form without destroying the cephem or penam nucleus) and with an alkanol. 7 - Acylamino - 7 - methoxycephalosporin or 6 - acylamino - 6 - methoxy - penicillin derivatives may be obtained by either reacting the products obtained above directly with an acylating agent or first reacting the said products with, for example, 2,4-dinitrophenylhydrazine and p-toluenesulphonic acid followed by reaction with an acylating agent.
Patent GB-1268693-A (GB)
Title: Improvements in or relating to textile machines
Inventor: WILLIS DAVID MARSHALL
IPC: D04B15/48
Filed: 1969-07-30
Abstract: 1,268,693. Knitting machines; warping machines. JONATHAN LOGAN Inc. 30 July, 1969 [30 July, 1968; 30 Jan., 1969], No. 38293/69. Headings D1C and DIM. In textile apparatus comprising a plurality of yarn packages of uneven density and yarn release characteristics individual tensioning means 50 are provided between each yarn package and the yarn take-up means of the machine so as to produce a predetermined minimum tension and tension reducing means are included between the tensioning means and the yarn take-up means comprising a roll which engages all of the yarns to feed them at a rate greater than the demand rate of the yarn take-up means. Yarn supply apparatus comprises a package supporting shelf 39 carrying yarn packages P of e.g. package dyed continuous filament synthetic fibre yarn. Each yarn passes through an eyelet spaced from the package to a pair of discs 50 urged together by a spring and thence to a rotatable roll 42 e.g. of chromium plated steel driven preferably directly by electric motor 44. After passing approximately once round the roll 42, the yarns pass through eyelets in a bar 45, positioned to separate yarns leaving the roll from those arriving at it, to an oiling roller 68 which dips into trough 69. The yarns are positively fed by cylinders 61 engaged by a driven tape 62. Electric stop motions sensitive to the absence of or excess tension in the corresponding yarns are provided for each yarn. The feed round roll 42 must be established before the full demand for yarn is made by the machine but in view of the lower inertia of the roll a delay must be provided so that the knitting machine has time to reach its operating speed before too much yarn is fed. A brake is provided for stopping roll 42, when the machine stops and yarns are disengaged from rollers 68 by rods 73. In another arrangement, packages P are carried on a wheeled cart with a plurality of vertical package supports 140 on which a stack of packages are placed with the end of one package connected to the start of the next package. The yarn furnishing apparatus is normally enclosed by transparent plastic panels. The yarn is passed through individual tensioning devices 150, 154 and into engagement with counter rotating roll members 142, 143 the total combined engagement with the two rollers being equal to about one turn.
Patent GB-1178657-A (GB)
Title: Improvements relating to Carburetors
IPC: F16B41/00
Filed: 1968-08-12
Abstract: 1,178,657. Spray carburetters. FORD MOTOR CO. Ltd. Aug.12, 1968 [Aug.18, 1967], No.38450/68. Heading F1B. The idling fuel flow in a carburetter is prevented from being increased above a permissible value by fitting a cap 10 of deformable material on the idling adjusting needle 24, the cap being non- rotatable relative to the needle and having a vane 12 which contacts a portion 46 of the carburetter body to prevent needle rotation in a fuel increasing direction. The cap 10 is preferably formed of a polyamide which having been softened slightly by soaking in water, is pressed on the grooved head 30 of the needle 24, four projections 16, 18 on the inner surface of the cap engaging the inner face of the head and ramps (14, Fig.1, not shown), engaging the grooves in the head to prevent relative rotation. The cap 10 may be formed of phenolic, polyuerthane, polyacrylate or synthetic rubber material.
Patent GB-335469-A (GB)
Title: Centrifugal driers
IPC: B04B3/04
Filed: 1929-12-16
Abstract: 335,469. Elmore, G. H. Dec. 16, 1929. Strainer separators, discharging.-A centrifugal drier has a frusto-conical rotary screen and a distributor inside the screen, and the angle of the screen with respect to the axis is made greater than the angle made by the screen when the material being dried reposes on it. The drier has a casing 10 with a feed opening 11, and an opening 26 through which access is obtained to the interior parts. The perforated screen 12 is supported by a spider 14 secured to the quill shaft 16 which is driven from the shaft 19 through gearing 18, 17. The screen is set at an angle as described above; an angle of 38‹ or more is suitable. The distributing cone 13 is mounted on the shaft 21 and is driven from the shaft 19 at a speed different from that of the screen. The cone 13 carries a number of helically disposed flights or flanges 36, which are in close proximity to the screen but do not touch it. The material which enters by the aperture 11 travels slowly along the screen, and is discharged at the wide end across a blast of air produced by the fan blades 59 on the ring 58 at the end of the screen. The liquid passes through the screen, flows into the passage 28 and is discharged through the outlet 29. Fan blades 47 on the ring 46 create a current of air which passes with the liquid into the passage 28 and escapes through vents 31. This prevents any suction from occurring in the passage 28 due to the rotation of the screen. A washing liquid can be supplied through the pipe 44 and this is thrown outwards by centrifugal force through the openings between the covers 41, 42. The helical flights 36 may be replaced by short plates arranged horizontally, or inclined to the axis and staggered with respect to each other.
Patent GB-1358096-A (GB)
Title: Electrical component and method of making it
IPC: H01R24/12
Filed: 1971-08-17
Abstract: 1358096 Making conductive components BUNKER RAMO CORP 17 Aug 1971 [9 Nov 1970] 38583/71 Heading B3A [Also in Division H2] An electrical connector, e.g. a pin 26 or socket contact 20 is hardened by heat treatment after it has been crimped on a conductor wire 38. A copper conductor wire 38 is inserted in a tubular portion 28 of a beryllium copper socket contact and the portion 28 crimped at four circumferentially spaced areas 40. The socket contact is heat treated at 600 F. for 2 hours to increase its hardness and springiness of its tines 34.
Patent GB-1510090-A (GB)
Title: Pyrimidine derivatives
IPC: G02F1/13
Filed: 1976-09-17
Abstract: 1510090 Pyrimidine derivatives F HOFFMANN-LA ROCHE & CO AG 17 Sept 1976 [19 Sept 1975 9 Jan 1976 25 Feb 1976 30 July 1976] 38596/76 Heading C2C [Also in Division C4] Novel pyrimidine derivatives of the Formula I wherein one of X, Y and Z is a -N = group and the others are -CH = groups and one of R 1  and R 2  isacyano group and the other is a C 1-7  alkyl, C 1-7  alkoxy or C 2-7  alkanoyloxy group, are obtained (1) by reacting cuprous, sodium or potassium cyanides with compounds of the above formula in which one of R 1  and R 2  is a halogen atom and the other is a C 1-7  alkyl, C 1-7  alkoxy or C 2-7  alkanoyloxy group, (2) (when Y is a -CH= group and R 2  is a cyano group) dehydrating the corresponding compounds in which R 2  is a carbamoyl group, or (3) (when Y is a -N= group and R 2  is a cyano group) dehydrating the corresponding compounds in which R 2  is a -CH=N-OH group. 4 - [5 - (4 - n - Pentylphenyl) - 2 - pyrimidinyl]- benzoic acid amide is obtained by reacting 1 - (4 - n - pentylphenyl) - 2 - methoxy ethylene with boron trifluoride etherate and ethyl orthoformate, and reacting the 4-n-pentylphenylmalonic tetra-acetal produced with acid and condensing the 2-(4-n-pentylphenyl)-3-ethoxyacrolein obtained with 4-amidino benzoic acid amide hydrochloride, obtainable from methyl p-cyanobenzoate. 2 - (4 - n - Hexylphenyl) - 5 - (4 - bromophenyl)- pyrimidine is obtained by converting 1-(4- bromophenyl) - 2 - methoxy ethylene to 4- bromophenyl malonic tetracetal, partially hydrolysing this to 2-(4-bromophenyl)-3-ethoxyacrolein and condensing this with 4-n-hexylbenzamidine hydrochloride. 5 - n - Pentyl - 2 - (4<SP>1</SP> - bromo - 4 - biphenylyl)- pyrimidine is obtained from 4-bromophenyl via 4<SP>1</SP> - bromo - 4 - biphenylaldehyde, 4<SP>1</SP> - bromo - 4- cyano - biphenyl and 4<SP>1</SP> - bromo - 4 - biphenylamidine hydrochloride, the latter being condensed with 2-n-pentyl-3-ethoxy acrolein, obtainable from n-pentyl-malonic tetracetal. 4 - (4<SP>1</SP> - n - Hexyl - 4 - biphenylyl) - pyrimidine 5-carboxylic acid amide is obtained from 4<SP>1</SP>-nhexyl-4-cyanobiphenyl via 4-n-hexyl-4-biphenylamidine hydrochloride, ethyl 2-(4<SP>1</SP>-n-hexyl-4- biphenylyl - 4 - hydroxy - pyrimidine - 5 - carboxylate, ethyl 2 - (4<SP>1</SP> - n - hexyl - 4 - biphenylyl)- 4 - chloro pyrimidine - 5 - carboxylate, ethyl 2 - (4<SP>1</SP> - n - hexyl - 4 - biphenylyl)pyrimidine - 5- carboxylate and 2 - (4<SP>1</SP> - n - hexyl - 4 - biphenylyl)- pyrimidine - 5 - carboxylic acid.
Patent GB-1355096-A (GB)
Title: Device for centering a rotational working tool about the longi tudinal axis of a tubular workpiece
IPC: B23K37/053
Filed: 1971-08-17
Abstract: 1355096 Centring rotary tools J P PEYROT 17 Aug 1971 [21 Aug 1970] 38625/71 Headings B3T and B3R A device for centring a rotational working tool, e.g. a welding machining or inspecting tool, about the longitudinal axis of a tubular workpiece 1 comprises two axially aligned sleeves 6, 7 slidably mounted about a tube 3 and urged by springs 23, 24 towards a central axially aligned sleeve 5. Two ball bearings 17, 18 are formed by conical end faces 12-15 on the sleeves in engagement with balls 16 which are tended to be pushed radially outwardly against the inner wall of the workpiece thus centring the device. A tool may be mounted on plate 2 which is fixed on one end of a pin 29 insertable in tube 3 and locked therein by a bifurcated locking spring 9 (Fig. 3) the two arms of which are engaged in straight grooves cut in pin 29 near its conical end 30 and are located in orifices 25 in tube 3 and in end sleeve 8 thereby also locking the end sleeve on to tube 3. End sleeve 4 may be crimped on to tube 3. Protective sliding rings 27, 28 and ball retaining rings 19, 22 may be provided. Pin 29 may be removed from the tube 3 by turning a boss on the outer face of end sleeve 4 by means of a spanner engaging flats 26 to rotate the device relatively to the pin. The arms of spring 9 are thus expanded. A set of such devices, of different external diameters but having the same diameter for tube 3, may be used for a wide range of tubular workpiece sizes.
Patent GB-1529231-A (GB)
Title: Microspheric opacifying agents and method for their production
IPC: D21H21/54
Filed: 1975-09-22
Abstract: 1529231 Opacifying agents CHAMPION PAPER CO Ltd 22 Sept 1975 [23 Sept 1974] 38737/75 Heading C3R [Also in Divisions B8 and D2] Opacifying agents consist of spherical superparticles, each of said particles having a spherical, discontinuous shell composed of agglomerated discrete secondary particles, the shell surrounding a hollow core and the secondary particles being spherical and solid. The secondary particles may be prepared by admixing an aqueous, partially condensed, aldehyde condensation product with an oily material and a surface-active emulsifying agent to form a water-in-oil emulsion, admixing an amphiphilic acid catalyst with the emulsion and polymerizing the condensation product in a polymerization zone to form spherical, solid, opaque, polymerized secondary particles. The condensation product, is suitably a urea-formaldehyde prepolymer. An opacifying pigment may be incorporated in the emulsion. To prepare the opacifying agents the polymerized secondary particles are separated from a portion of the oily material of the water-in-oil emulsion, said separated particles being dispersed in the oil phase of an oil-in-water emulsion, and spherical agglomerates of these particles are formed by heating the oil-in-water emulsion at a temperature effective to form said agglomerates, optionally while admixing the oil-in-water emulsion with water under high shear agitation. An opacifier paper sheet may be made by admixing cellulosic fibres and the super-particles and forming the admixture into a paper sheet.
Patent GB-1161673-A (GB)
Title: Device for Bulking Staple Fibre Yarns
IPC: D02G1/18
Filed: 1966-08-31
Abstract: 1,161,673. Bulking yarn. ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI, GENERALNI REDITELSTVI. 31 Aug., 1966 [1 Sept., 1965], No. 38748/66. Headings D1F, D1J and D1W. The subject matter of this application is as described in Specification 1,161,674, but the claims relate to the construction of the bulking chamber.
Patent GB-847894-A (GB)
Title: Improvements relating to free wheels for bicycles
IPC: F16D41/28
Filed: 1958-12-02
Abstract: 847,894. Ratchet clutches. CAIMI, G. Dec. 2, 1958, No. 38840/58. Class 80 (2). A bicycle free-wheel comprises an inner ring 1 having a smooth cylindrical track 1a, and an outer ring 2 having internal teeth engaging interposed wedging rollers 3 and secured to the inner ring by annuli 4 retained by expansible wire rings 5 engaging grooves in the inner ring. In a modification one annulus is replaced by a flange formed on the inner ring.
Patent GB-835200-A (GB)
Title: Breathing protector
IPC: A62B18/04
Filed: 1958-12-03
Abstract: An "air curtain" type of respirator for use in dust-laden atmospheres has downwardly directed nozzles in a hollow annulus which is mounted on the user in such a way as to provide a curtain of air which completely surrounds the head.  The annulus may be mounted on the brim of a hat or helmet.  If desired, an angled nozzle may be provided which directs a stream of air directly towards the noise or mouth and a further connection may convey air to the interior of the helmet to cool it.
Patent GB-369906-A (GB)
Title: A combined overload circuit breaker and tumbler switch
IPC: H01H73/38
Filed: 1930-12-29
Abstract: 369,906. Electrically y-released switches; tumbler switches. MARSTON, G. S. and STATTER, J. G., 16, Great George Street, London. Dec. 29, 1930, No. 39053. [Class 38 (v).: Spring contacts F<1>, F<2>, carried respectively by the arms D<1>, D<2> of a toggle joint, are closed by a tumbler A which straightens the toggle, and are opened by springs E<1>, E<2> when the connection between the toggle and the tumbler is interrupted by an electromagnetic overload release H. The end a<1> of the tumbler A acts in a slot in one end of a bent strip spring b, to move it downwards, thereby acting on a pin d3, at the connection of the toggle links, to straighten the toggle. On overload a plunger h is raised, and by means of a lever i lifts the spring b away from the casing C to allow the pin d<3> to move upwards under the action of the springs E<1>, E<2>, which break the toggle. A container K which supports the plunger h may be adjustably mounted in a tube L by means of a screw m, and a ring M, and a constriction k<1> of the container K is in frictional engagement with the plunger h, so that by varying the position of the plunger h, and, therefore, the distance that it moves, the time taken to open the circuit may be varied. The container K contains a lubricant such as that known under the registered Trade Mark " Vaseline." In the closed position of the switch, hoods G<1>, G<2> of asbestos take the position shown in Fig. 4 to divide and extinguish the are produced when the circuit is broken.
Patent GB-349902-A (GB)
Title: Improvements in processes and apparatus for heat treatment of metal articles
IPC: C21D1/44
Filed: 1929-12-23
Abstract: 349,902. Annealing; casehardening. ROSENBERG, H., 352, West 13th Street, New York, U.S.A. Dec. 23, 1929, No. 39294. [Class 72.] In the hardening of metal articles by immersion in a molten salt bath, particularly a cyanide bath, and subsequent quenching, the articles are contained in perforated baskets 29 which fit in, and are secured to the sides of, apertures in a plate 24 pivotally mounted on a rod 16. The baskets project into a salt bath 11 which is heated by burners 8, the temperature of the bath being indicated by a pyrometer 13. When the bath reaches the desired temperature, the rod 16 is rotated by a handle 23 and the plate 24 with the baskets is rotated first into a vertical position when superfluous molten salt drains off and then into the dotted position shown in the Figure. The plate 24 strikes a rod stop 41 on a rod 40 secured to a cage 33 and the articles drop from the baskets 29 into a cage 33 immersed in a water bath 32. The cage 33 is also pivotally mounted on a rod 35 provided with a rotating handle 38 and when the articles are cooled sufficiently, the cage 33 is rotated and the articles are projected into a shoot 43 and pass into a receptacle 45. To prevent the leakage of fumes from the bath, hoods 46, 48 with chimneys 47, 49 respectively are provided over the baths 11, 32; the hoods are connected by a passage 51 and the hood 48 is provided with a pivoted weighted door 52. The front end of the hood 46 is closed by weighted shoots 71 pivotally mounted on a shaft carried in bearings in the side walls of the hood and operated by a handle, the shoots feeding the articles to the baskets 29, one shoot for each basket. Circulating pipes for cooling the water in the bath 32 may be provided. In order that the articles shall not stick together when the cage 33 is rotated a grating 83 provided with baffle-plates 84 which may be of various shapes is detachably mounted on a pin 86 carried by the cage 33.
Patent GB-1039046-A (GB)
Title: Brazing and de-brazing tool
IPC: B23K1/018
Filed: 1963-10-07
Abstract: 1,039,046. Brazing. AEROQUIP A.G. Oct. 7, 1963 [Oct. 22, 1962], No. 39451/63. Heading B3R. A brazing and debrazing tool comprises a pair of members 26, 28 each having a handle portion 30, 32 on one end and a clamp portion 34, 36 on the other end, the clamp portions together forming a chamber, a hinge connection 38 between the members, a heating element including a tubular conductor 78, 86 in each clamp portion and an electrically conducting hollow conduit to connect the heating element in one clamp portion to a source of electricity and a source of cooling fluid and passageways in the hinge connection to connect the heating element in the other clamp portion to the first heating element and to another hollow conduit connected to the source of electricity and cooling fluid. The end of the handle 30 of the member 26 has three tubular connectors 58, 60, 62 for plugging in to a cable 63. The connector 58 is connected to a tubular conductor 76 extending through the member 26 and flattened and formed into a heating element 78 in the semicylindrical clamp portion 34. The element 78 is continued by a conductor which extends into a chamber in the apertured hinge 38. The other similar heating element 86 has both ends connected to chambers in the hinge. A tubular conductor 84 connects the hinge to the connector 60. The connector 62 for connection to a supply of inert gas is joined to a conduit 72 which extends into an annular space defined by the clamp portions. In operation a sleeve having grooves containing rings of brazing alloy is positioned over pipe ends, the tool is closed with the clamp portions about the pipe ends, a latch 46 holding the tool shut, and the connectors 58, 60, 62 are coupled to the cable 63 to supply via 58 and 60 high-frequency electrical current to the heating element to melt the brazing alloy by induction and a cooling liquid through the elements and via 62 an inert gas to fill the chamber about the pipe ends. A modified tool is described having the clamp portions shaped to surround a small pipe to be brazed within a larger pipe. The tools may be employed for debrazing. Inert gas may be passed through the pipes clamped in the tool.
Patent GB-930082-A (GB)
Title: Improvements in transistor inverter circuits
IPC: H05B41/282
Filed: 1959-11-20
Abstract: 930,082. Supply systems for space discharge apparatus. GENERAL ELECTRIC CO. Nov. 20, 1959 [Dec. 29, 1958], No. 39463/59. Class 38 (4). [Also in Group XL (c)] In an inverter circuit for feeding a load with alternating current from a direct-current source, two transistors are arranged to conduct alternately under control of a series resonant circuit and a current transformer connected in the load circuit. Fig. 1 shows a circuit in which the positive side of the source 1 is alternately connected to output terminals P1, P2 by transistors TR1, TR4 arranged to conduct alternately by voltages applied to the base from an oscillatory circuit Cp, Lp and a current transformer T1 in series with the load Rp. Fig. 2 shows a fluorescent lighting circuit in which alternate fluorescent tubes Da are ballasted with inductors La and capacitors Ca so as to form a load of unity power factor across the lines 21, 22. Transistors TR 1 and TR4 conduct alternately to connect the positive terminal of the source 1 across opposite sides of the primary of output transformer T2, the switching frequency being controlled by an oscillatory circuit Lp.. Cp and a current transformer T1. Oscillation is started before the lamps strike by an. auxiliary circuit C1, L1, resonant at the required oscillation frequency, connected across the emitter/collector path of transistor TR4. The frequency of oscillation will alter in the event of failure of one or more lamps Da, so that the effective load across the secondary of transformer T2 remains at unity power factor thus maintaining the most efficient operating conditions for the transistors.
Patent GB-1187535-A (GB)
Title: Laser Pulse Shaping System
IPC: H01S3/106
Filed: 1968-08-19
Abstract: 1,187,535. Lasers. UNITED AIRCRAFT CORP. 19 Aug., 1968 [25 Aug., 1967], No. 39521/68. Heading H1C. Refraction variations produced by an ultrasonic acoustic wave cause different zones of a laser active medium to become radiative in turn and an output pulse to be produced having an intensity distribution determined by the crosssectional configuration of the active medium. Fig. 1 shows a ruby active medium 10 within a resonator formed by a plane mirror 12 and a cylindrical or spherical mirror 14, pumping being effected by a flash-lamp (not shown). The resonator also includes an acoustic cell 16 in which a standing or travelling wave is produced by an oscillator 20 and a transducer 18. As the amplitude of the acoustic pressure wave changes, periodic fluctuation of direction will take place in the acoustic cell for any beam 22 passed through a given zone of the active medium. Different beams will be normal to the convex mirror at different times, and positive feedback and hence laser radiation will occur in each zone in turn as its beam becomes normal to mirror 14. Due to the optical symmetry a zone on each side of the optical axis will be radiative at the same time. Radiation takes place only during alternate half cycles of the acoustic wave, and the output pulse 30 produced has an intensity pattern determined by the respective areas of the zones as they become radiative in turn. For a cylindrical mirror 14, the shapes of the active medium and the resultant pulses produced are shown in Figs. 2A-2F. Different output pulse forms are obtained by the use of a spherical mirror. The acoustic wave may alternatively be applied directly to the active medium.