baber/WOPTO huggingface dataset:
Patent GB-1135029-A (GB)
Title: Improvements in or relating to cyclic phosphates and the manufacture thereof
IPC: C07H19/10
Filed: 1966-05-02
Abstract: 1,135,029. Nucleoside cyclic phosphates. UPJOHN CO. 2 May, 1966 [8 June, 1965; 7 March, 1966], No. 19239/66. Heading C2C. Novel 1 - # - D - arabinofuranosylcytosinecyclic - 2<SP>1</SP>,5<SP>1</SP> - phosphates and N<SP>4</SP> - acyl derivatives thereof of Formulµ (II) and (III) are prepared by heating an organic ammonium salt I with a condensing agent such as dicyclohexylcarbodiimide to give an organic ammonium salt II and, if desired, hydrolysing this with ammonia in a lower alkanol to give the organic ammonium salt III. Free acids and other salts may be obtained conventionally from the organic ammonium salts. Ac is anisoyl or the acyl radical of a C 2-12  hydrocarbon monocarboxylic acid, R is organic ammonium and R<SP>1</SP> is H, alkali metal, alkaline earth metal, ammonium or organic ammonium. Organic ammonium radicals include pyridinium, alkylpyridinium, morpholinium and 4- morpholinyl - N,N - dicyclohexyl - carboxamidinium. The products have cytotoxic and antiviral activity. Various starting materials of Formula (I) are prepared by reacting the corresponding free acids with organic ammonium ion exchange resin salts. 1 - (5<SP>1</SP>- O - triphenylmethyl - # - D - arabinofuranosyl) - cytosine is prepared from 1-#-D- arabinofuranosylcytosine hydrochloride and triphenylchloromethane in pyridine and reacted with benzoyl chloride to give N<SP>4</SP>-benzoyl-1- (2<SP>1</SP>,3<SP>1</SP> - di - O benzoyl - 5<SP>1</SP> - O - triphenylmethyl- # - D - arabinofuranosyl) - cytosine followed by HBr/AcOH to give N<SP>4</SP> - benzoyl - 1 - (2<SP>1</SP>,3<SP>1</SP>- di - O - benzoyl - # - D - arabinofuranosyl)- cytosine which is phosphorylated with pyridinium 2-cyanoethyl phosphate and the blocking groups removed with ice-cold NaOH to give N<SP>4</SP> - benzoyl - 1 - #- arabinofuranosyl cytosine - 5<SP>1</SP>- phosphate. The corresponding acetyl compounds are prepared similarly.
Patent GB-245810-A (GB)
Title: Improvements in telephone transmitters and receivers and the like
IPC: H04R17/00
Filed: 1924-08-14
Abstract: 245,810. Western Electric Co., Ltd., (Western Electric Co., Inc.). Aug. 14, 1924. Piezo-electric instruments.-Relates to improvements in piezoelectric telephone receivers and transmitters. (1) An electrode 60, Fig. 6 is embedded in the crystal, either by allowing the crystal to grow about one or more conductors or by inserting it in a hole drilled in the crystal. This electrode may take the form of a column of mercury, saturated Rochelle salt solution or graphite, or a wire surrounded by tinfoil pellets, graphite or conducting liquid insuring low contact resistance with the crystal. Two such conductors may be joined to a binding post anchored to the crystal bv cement. A torsion arm 66 connects one end of the crystal to a diaphragm. (2) the crystal 70, Fig. 9 is secured in a frame 71 by means of an internal electrode 74. The other electrode is a girdle 73. A tube 76 containing water or salt solution and having its upper end sealed may supply moisture to the interior of the crystal. A conical diaphragm has its apex attached to a torsion arm fixed to one end of the crystal. (3) A piezo-electric crystal is associated with a large diaphragm unrestrained in its periphery (4) The motional impedance of a diaphragm is made approximately equal to that of the crystal by annular corrugations in a conical diaphragm, which corrugations are closer together at the apex than at the periphery. Or the diaphragm, Fig. 4 may be composed of graded masses 50, 51, 52, which decrease, in density towards the periphery, and the periphery may be corrugated. A metal ferrule 53 in the form of concentric cores may be used in connecting the diaphragm. A stiffener 54, Fig. 5, of moulded sodium potassium tartrate may be used to reduce the transition loss between the ferrule and the diaphragm. Specifications 231,216 and 231,409 are referred to.
Patent GB-373823-A (GB)
Title: An improved electricity meter
IPC: G01R11/36
Filed: 1931-07-06
Abstract: 373,823. Current and pressure meters. LANDIS ET GYR SOC. ANON., 1, Hofstraase, Zug, Switzerland. July 6, 1931, No. 19394. Convention date, July 24, 1930. [Class 37.] In an energy meter, in addition to the integrated power, the individual magnitudes determining the apparent power are also indicated. A single-phase meter has two inspection windows, one for observing the usual counting train, and the other for observing the pointer 17 of a small thermal ammeter actuated by a bifilar wound bimetallic spiral 15 connected to the ends of a winding 8 arranged around the current coil 6 of the meter. Voltage may similarly be measured by means of a coil arranged around the pressure coil 7 of the meter. The ammeter may have a non-return pointer for indicating the maximum current, this pointer being reset to zero at definite intervals of time by the official who reads the meter. A second bimetallic spring may be arranged to compensate for temperature variations.
Patent GB-1215397-A (GB)
Title: Improvements in or relating to the removal and disposal of radioactive impurities from contaminated liquids
IPC: G21F9/12
Filed: 1968-04-24
Abstract: 1,215,397. Removing radioactive contaminants; cooling nuclear reactors. UNION TANK CAR CO. 24 April, 1968 [29 May, 1967], No. 19411/68. Headings G6C and G6R. Radioactive solids are removed from a contaminated liquid by a process comprising the steps (a) passing the liquid through a filter precoated with finely-divided particles; (b) immersing the filter in a cleaning liquid and passing a gas through in the reverse direction; (c) draining the filter and passing a backwash liquid in reverse flow to transfer the finelydivided particles and radioactive solids to a settling tank; and (d) centrifuging and discarding the residue from the settling tank. The cleaning liquid is preferably warm water, but an alcohol, carbon tetrachloride, or detergent or soap solution are also suitable; the gas is preferably air, but may also be nitrogen or oxygen. The finely-divided particles may be an anion or cation exchange resin, several of which are specified, or may be diatomaceous earth. A suitable arrangement of apparatus is shown diagrammatically. The process may be used for the treatment of steam condensate in a boiling water nuclear reactor system.
Patent GB-570260-A (GB)
Title: Improvements in stretching machines for flattening metal strip
IPC: B21D1/02
Filed: 1943-11-24
Abstract: 570,260. Stretching. BIGWOOD & SON, Ltd., J., and POPE, A. Nov. 24, 1943, No. 19604. [Class 83 (iv)] Winding and reeling.-In a machine for flattening a metal strip by stretching, of the kind comprising an elongated bed 10 provided with grippers 16, which can be adjusted along and secured to the bed, with power-operated grippers 17 and with an uncoiling device 21 to provide a length of strip to be stretched, the device 21 is mounted so that, after providing a strip, it can be moved out of the way. The grippers 16 can slide along the bed and be anchored by a hook 15 engaging one of the teeth 14 of the bed. The device 21 is carried on rails or a guide 19 at right angles to the bed 10 and has a rack 25, Fig. 5, engaged by a pinion 29 mounted on the guide 19 and driven at will by a motor 26. If the coil contains more metal than required for one flattened strip, the required length is cut off after uncoiling. A roller support 31 between the grippers 16, 17 may be provided. If it is desired to re-coil a flat strip with or without first oiling it, this is done by devices 32, 37 which straddle the bed, can be moved on rails 34, and can be secured in adjusted position by bars 49, Fig. 2, having pins to engage holes 47 in the bed and others 50, Fig. 10, in said devices. The oiler has motor-driven, felt-covered rollers 39 supplied with oil &c. by drip or other feeders 41 and tank 38. The re-coiler 32 has motor-driven bending rolls 35, Fig. 8, guide plates 36, 44 and support rolls 43.
Patent GB-1060096-A (GB)
Title: Improvements relating to the flow of a cooling fluid
Inventor: COWLEY EDGAR GEORGE
IPC: F23R3/08
Filed: 1964-05-13
Abstract: 1,060,096. Gas turbine engine combustion equipment. ROLLS-ROYCE Ltd. May 6, 1965 [May 13, 1964], No. 19803/66. Divided out of 1, 060. 095. Heading F1L. The invention relates to an assembly comprising inner and outer tubular members which are telescoped into each other with an annular space therebetween in which is mounted a corrugated annular member through which may flow a cooling fluid for effecting film cooling of the wall of one of the tubular members. The annular space has a converging portion disposed immediately adjacent to and downstream of the corrugated annular member, and the annular space has a diverging portion disposed immediately adjacent to and downstream of the converging portion. The invention is described with reference to a flame tube of gas turbine engine combustion equipment which comprises outer and inner air casing walls 11, 12 which define an annular air space in which are disposed a number of flame tubes each comprising sections 14, 15, 16, 17 the downstream ends of the sections 14, 15, 16 telescoping into the adjacent upstream ends of the sections 15, 16, 17 to define annular spaces 26, 27, 28 therebetween. Corrugated annular spacers 30, 31, 32 are disposed in the annular spaces 26, 27, 28 and the spaces downstream of the spacer members are shaped to be of convergent-divergent annular form 36, 37, Fig. 2, (not shown), the downstream end of an upstream section such as 14 being suitably shaped.
Patent GB-1254186-A (GB)
Title: Antistatic polyvinyl chloride mixture
IPC: C08K5/098
Filed: 1969-04-18
Abstract: 1,254,186. P.V.C. compositions. CHEMISCHE WERKE HULS A.G. 18 April, 1969 [20 April, 1968], No. 19819/69. Headings C3G and C3P. An antistatic polyvinyl chloride composition (free from plasticizer) contains 1-5 to 5-0% by weight of alkali or alkaline earth salts of alkylsulphonic acids having 6 to 30 carbon atoms, or of alkarylsulphonic acids having 6 to 30 carbon atoms in the alkyl groups, and (a) 2-0 to 5-0% by weight of lead salts of fatty acids having 12 to 26 carbon atoms, the total amount of sulphonates and lead salts being 4 to 8% by weight"and/or (b) 0-5 to 10% by weight of a polyacrylic acid ester, polymethacrylic acid ester, polyvinyl acetate, polyvinyl alcohol, polyvinyl acetal, polyvinyl ether or mixtures thereof, the total content of sulphonates and polymers being 2 to 15% by weight. Other additives used are a graft polymer of vinyl chloride on ethylene/vinyl acetate copolymer, dibasic lead phosphite, montan acid ester wax, tin-sulphur stabilizer and glycerol monooleate.
Patent GB-605198-A (GB)
Title: Improvements in or relating to attenuating apparatus for high-frequency electromagnetic energy
IPC: H01P1/22
Filed: 1945-08-01
Abstract: 605,198. Attenuators. SPERRY GYROSCOPE CO., Inc. Aug. 1; 1945, No. 19836. Convention date, Aug. 2, 1944. [Class 40 (viii)] An attenuator which may also be an impedance-transformer is adapted for insertion in a coaxial cable or a wave-guide and comprises an impedance-transformer composed of a section of transmission line filled with solid dielectric, attenuation being produced by dissipation of energy in the dielectric and/or in lumped shunt conductances. The diameters of the conductors may be the same as or different from those of the transmission lines with which the device is in circuit. In one embodiment, Fig. 1, energy is dissipated in a poorly conducting shunt disc 9, which is supported by a mass 8 of solid dielectric, such as polystyrene, a quarter of a wavelength long and having a dielectric constant of such a value that the impedance seen from the left of the attenuator is matched to the line. If, however, the admittance of the dissipator 9 has a reactive component or susceptance, the length of the section 8 is changed so that a purely conductive admittance is seen from the left of the attenuator, the requisite length being formed from a circle diagram, Fig. 3 (not shown). A symmetrical attenuating section 8<11>, Fig. 4, having two dissipators 9<11>, may be associated with junctions comprising outer sleeves 21 and quarter-wave inner conductors 19, the length of the dielectric 8<11> being chosen from a circle diagram, Fig. 5 (not shown), to match the resistance and neutralize susceptance at the left of the attenuator. The coaxial lines connected to the attenuator may have different characteristic admittances resulting from the use of inner conductors with different diameters, Fig. 4. Symmetrical impedance-matching may be effected by the use of three dissipators 9<11> spaced apart in the dielectric 8<11>, Fig. 6 (not shown), at distances determined from a circle diagram, Fig. 7 (not shown). Alternatively, the discs 9<11> may be omitted and dissipative material, such as carbon particles, may be incorporated in a half-wave section of dielectric 8<11>, Fig. 8 (not shown). The characteristic impedance of the attenuator may be changed by changing the diameters of its conductors, Figs. 9 ... 12 (not shown), and may, by a suitable choice of dielectric and diameter-ratio, be made equal to that of the empty line, dissipative discs 25<1>, 261, 27<1>; Fig. 10, being incorporated so that the electrical effect is equivalent to that of attenuators described in Specification 617,236. The attenuator may be of the wave-guide instead of the coaxial type, Figs. 13, 14 (not shown).
Patent GB-698473-A (GB)
Title: An improved ball and socket joint
IPC: F16C11/08
Filed: 1951-08-23
Abstract: 698,473. Making ball-end-socket joints. STOKKE, T., and OLSEN, C. B. Aug. 23; 1951 [March 7, 1951], No. 19854/51. Class 83 (ii). [Also in Group XXV] In a ball-and-socket joint comprising a flange 11 formed on a rod 1 concentrically with a ball 2 and seating in a recess 10 between inner and outer parts 3, 4 respectively of a housing, the flange, after hardening, is used as a tool for inserting the upper portion of part 3 between the flange and ball.
Patent GB-188031-A (GB)
Title: An improved coupling for securing the life line of a parachute to the harness on an aviator
IPC: B64D17/38
Filed: 1921-07-23
Abstract: 188,031. Holt, H. E. S. July 23, 1921. Stud-and-socket fastenings; catches, spring.-For securing the life-line of a parachute to a person's harness, a slotted plate i secured to the life-line is pushed into a slot b, formed in a plate a secured to the belt of the harness, until a pivoted spring catch d engages the slot in the plate i, shoulders d' being formed on the catch to engage corresponding shoulders in holes c, c<1> in the plate a as shown in Fig. 4, to relieve the pivot pin of any stress due to the load. The catch d is pivoted on a pin e between lugs f and is pressed by a coiled torsion spring g through the holes c, c'. An inclined portion d<2> is formed on the catch. The device may be used in conjunction with the quick release fastening described in Specification 183,245, the plate a being formed as an extension of the base-plate of the quick release fastening.
Patent GB-480302-A (GB)
Title: Centrifugal casting machine and mould for use with said machine
IPC: B22D13/10
Filed: 1937-07-19
Abstract: 480,302. Moulding pipes &c. centrifugally. KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN N.V. July 19, 1937, No. 19909. Convention date, Aug. 3, 1936. [Class 87 (ii)] [Also in Group XXII] A centrifugal casting - machine having a lined mould 1 clamped between rotary heads 2, 5 is driven at a speed greater than the first critical speed during casting, and ,the mould is supported at about its middle by flexible rollers 15 which absorb the unbalanced forces. The rollers are carried by levers 13 operated by toggles 17 and pivoted hydraulic cylinders 21. The moulds may consist of commercial iron or steel pipes 7 to 10 mm. thick with heads, bearing rings &c. welded on and they are rotated at 11200 to 13200#1/D revolutions per minute, where D is the outer diameter of the pipe in millimeters.
Patent GB-147922-A (GB)
Title: Improvements in or relating to copying lathes
IPC: B27M3/20
Filed: 1920-07-09
Abstract: 147,922. British United Shoe Co., (Assignees of Whipple, L. B.). April 13, 1916, [Convention date]. Lathes.-Lathes for turning lasts, hat-blocks, gun-stocks, &c. have a special arrangement of copying mechanism and cutter and model slides and related details. The lathe is belt driven from a motor 10, Figs. 1 and 2, through intermediate shafts 11, 12 the latter being belted to the feed-motion and to a stub-shaft 13 driving the model and cutter spindles and a cam-shaft 31 through chain gearing at equal speeds. Either a four edged cutter of the integral construction shown in Fig. 4 with transverse passages 75 for chip clearance, or the two-edged cutter shown in Fig. 6 may be employed. The conical parts of the blades do the roughing and the hemispherical ends of about ¥ in. radius do the finishing. The tracer is a ball 76 of 1¢ in. diameter with opposed conical recesses engaging balls located in seatings in adjustable arms 78 pivoted at 80 as controlled by its screws 81. The lathe is fitted with length and width grading mechanism (not shown). The cutter spindle is driven by a separate motor 67 carried by a base angularly adjustable on a transversely adjustable slide 61. Fig. 3 shows the cutter and model carriages guided by separate ways. Cams 35, 36 act alternately on a spring-controlled tappet rod 39 and through a bell crank 43 and opening link 47 to increase the pressure between the model and tracer due to the action of gravity on the swing frame when cutting parts of decreasingly small diameter. This additional pressure is removed on the outward swing to prevent locking of the model by the tracer. When cutting lasts of reverse hand to the model, the cam shaft 31 is indexed through 180 degrees relatively to the lathe spindles by means of a spring plunger 34 connecting the driving sprocket to a disk 33 keyed to the shaft. In a modification, the shaft 31 may be arranged to reverse when tho work spindle is reversed. The pressure is further varied by an arm 56 linked to the swing frame and perforated to pass a weighted cord 51 passing over pulleys 53, 50 and secured to the frame. With the arrangement shown, the cord hangs slack and the weight acts on the arm 56 through a clamp 55 during the cutting of the toe part. As the instep part is reached the cord is. tightened and the weight removed from the arm. When turning work other than lasts, additional pulleys may be employed to vary the parts of the travel at which the weight is operative, or cam mechanism may be fitted for this purpose. The weight may act through a spring to cushion the contact with the swinging arm. Cam mechanism may be fitted to control a clutch connecting the disk 33 to the cam shaft in order that the periodic increase of pressure through the spring link 47 may be suspended during parts of the operative travel. The clutch is such that engagement can only occur in one relative angular position in order that the proper synchronism may not be lost. The use of the above-described pressure varying mechanism enables the swing frame to be constructed of aluminium.
Patent GB-892997-A (GB)
Title: Improvements in and relating to apparatus for setting space heating systems into operation
IPC: F23N5/20
Filed: 1960-06-07
Abstract: 892,997. Controlling burners. WEBASTOWERK G.m.b.H. June 7, 1960 [July 25, 1959], No. 19985/60. Class 75(1) In an electrical control system for a vehicle space heater comprising a liquid fuel burner 6, an electrical ignition plug 7 and an electrically driven blower 4 supplying combustion air, or fuel/air mixture, a switch 20 controlling the ignition plug 7 and the blower 4 is actuated by hand and also by a temperature sensitive element 39 heated by an electric element 36. The switch 20 is opened to stop the burner when the element 39 reaches a predetermined temperature. At starting the switch 20 is closed by hand and energizes the motor 2 of the blower 4 and a relay 30 through the cold contact 29 of a switch 26 actuated by a thermal element 27 responsive to the temperature of the combustion gases. The relay 30 closes contact 32 to energize the ignition plug 7 and the heating element 36 through a resistance 35. if the burner ignites the thermal element 27 opens cold contact 29 whereby the ignition plug 7 and the heating element 36 are de-energized. If ignition fails the heating element 36 causes the temperature sensitive element 39 to open the switch 20. The fuel may be supplied separately to the burner. An electromagnetic valve 44 controlling the fuel/air mixture or the fuel only is opened when the motor 2 of the blower is energized. If the temperature of air supplied by a second blower 3 and heated by the burner rises above a predetermined value a switch 42 is closed and energizes the heating element 36 directly and in consequence the switch 20 is again opened. The heated air is conducted by a pipe from an outlet 12 to the vehicle space.
Patent GB-1427805-A (GB)
Title: Postage tape
IPC: C09J7/02
Filed: 1973-04-27
Abstract: 1427805 Adhesive stamps PITNEY-BOWES Inc 27 April 1973 [28 April 1972] 20026/73 Heading B8F [Also in Divisions B4-B5] A postage meter tape comprises a printreceptive strip 13 releasably attached by pressure-sensitive adhesive to a wider carrier band 12 having sprocket-engaging drive holes 15 coincident with score or perforation lines 16 in the strip 13 which define individual stamps. The adhesive may comprise longitudinal stripes. In use, the motion of sprocket drum 31 is correlated with the printing mechanism at 20; after printing the carrier band 12 is separated at 21.
Patent GB-422917-A (GB)
Title: Improvements in and relating to buckles and like fasteners
IPC: A41F11/12
Filed: 1933-07-15
Abstract: 422,917. Clips. NEWEY BROS., Ltd., NEWEY, J. G., and JERRED, C. B., 105, Brearley Street, Birmingham. July 15, 1933, No. 20055. [Class 44] [See also Group VII] A lever clip comprises a fixed bar b, and a wire frame a carrying a lever g formed with a tubular eccentric gripping cam j. The fixed bar b permanently grips one end of the band between the front part c and the back part d, the latter carrying serrations or prongs, and the former being flanged over and waved, ribbed, or formed with upstanding rounded projections f. The cam j is also provided with corrugations, ribs, or protuberances k, which intermesh with those f on the part c.
Patent GB-1043455-A (GB)
Title: Handling device for elongated workpieces
Inventor: HARDING BRIAN
IPC: B23Q3/06
Filed: 1964-05-14
Abstract: 1,043,455. work-handling. BROOKES (OLDBURY) Ltd. Aug. 5. 1965 [May 14, 1964], No. 20078/64.- Headings B3B and B3T. [Also in Division B8] Means for handling elongated workpieces comprises two spaced fixed jaws 18c, two cooperating movable jaws 21, and supports 24 moved towards the movable jaws when the latter are in their retracted positions to prevent a workpiece falling from the movable jaws. A tube-chamfering machine comprises two movable cutter heads 12 having gripping devices 13 connected to move in unison by a bar 15. In operation, channels 16 support a stack of tubular workpieces. The lowermost piece is carried to the fixed jaws 18c and clamped when fluid-pressure devices 23a are operated. As links 22, connected to the bar 15, are moved angularly, the supports 24 are swung down, acceleration forces preventing the piece from falling. A deburring operation is initiated when the jaws are closed. When the jaws open, the finished piece drops away down a shoot 26. The machine stops if there is no workpieee to operate switch levers 27.