baber/WOPTO huggingface dataset:
Patent GB-478077-A (GB)
Title: Improvements in or relating to the treatment of materials comprising organic esters of cellulose
IPC: C08B3/22
Filed: 1936-04-08
Abstract: Filaments, yarns, ribbons, fabrics, films, and like materials having a basis of organic ester of cellulose are treated with a liquid comprising an amine in which an aromatic group is linked to nitrogen through an aliphatic group, in the absence of mineral saponifying agents.  If more than one aromatic group is present in the amine each aromatic group is linked to nitrogen through an aliphatic group.  The treatment results in products of high tenacity, extensibility, and elasticity.  According to the conditions of treatment the material may undergo substantially no saponification, or saponification may be considerable and may take place throughout the whole section of the material.  Treatment may be conducted as a continuous operation or as a bath process and may be conducted under raised pressure and at raised temperature. The materials may be allowed to shrink during the treatment.  They may be passed round rollers which are positively driven at speeds which decrease progressively along the path of the materials.  The materials may be stretched during the treatment provided that the bath is such as to exert a softening effect.  Salts such as sodium, potassium and ammonium phosphates, acetates, tartrates, citrates, lactates, sulphates, thiosulphates, and sulphites, may be added to the saponifying bath to diminish swelling of the cellulose ester.  Other substances which may be used are barium, strontium, calcium, magnesium, and zinc salts of organic acids, ammonium and alkali metal oxalates, formates, and chlorides, and sugars.  In an example, cellulose acetate yarn in hank form is immersed in a dilute aqueous solution of mono-benzoylamine at raised temperature until the whole of the acetyl content is removed.  Other bases which may be used are:--benzyl trimethyl ammonium hydroxide, dibenzylamine, a - or b -mono-phenyl-ethylamine, or tribenzoylamine. The base may be used in solution in aqueous alcohol.  High tenacity materials, such as those which have been stretched to a high degree during or subsequent to production, may be treated by the process, or materials which have undergone a shrinking process may be treated. The saponification may be such as to impart affinity for cotton dyes. Specifications 340,324, 340,325, 340,326, 340,436, 340,437, 343,062, 378,858, 417,220, 435,806, and 453,302, are referred to. The Provisional Specification refers also to Specifications 429,103, 438,584, 438,585, 438,586, and 438,587.
Patent GB-336032-A (GB)
Title: Improvements in turbine motors
IPC: F03B1/00
Filed: 1929-07-27
Abstract: 336,032. Baron, A. April 4, 1929, [Convention date]. Working-fluid supply. - Relates to hydraulic turbines of the type in which a volume of liquid is caused to circulate between two chambers 45 by the explosion of gases in chambers A, B. A turbine wheel 63 is arranged between the chambers 45. The explosion chambers are provided with interlocked admission valves and ignition and with discharge valves 2 and regulating valves R. For regulation, the rotary parts 64, 65, 67, of the turbine may be movable axially away from a rotary disc 62 so as to vary the inlet opening 56. The chambers 45 are connected to a compensating chamber, and the explosion chambers are waterjacketed.
Patent GB-824506-A (GB)
Title: Improvements in or relating to flexible barges or storage vessels
Inventor: MORTON WILLIAM ERNEST
IPC: B63B35/28
Filed: 1957-07-22
Abstract: 824,506. Laminates; adhesively-bonded cord fabrics. DRACONE DEVELOPMENTS Ltd. July 21, 1958 [July 22, 1957], No. 23124/57. Class 140. [Also in Group XXXIII] A flexible vessel for transporting and/or storing liquid or granular solid materials comprises a fabric envelope made up of at least two bonded layers of textile cords, at least one layer having the cords extending lengthwise of the envelope and the, or at least one other, layer being formed of one or more cords wound circumferentially of the envelope in helical turns of a small lead. The envelope shown has three layers 2, 3, 4 embedded in an impermeable matrix of rubber or rubber-like plastic, the layer 3 having its cords 5 running lengthwise, the cords 5 of layers 2 and 4 being wound helically in opposite directions. The cords are of nylon filaments and may be laid in place individually or in groups made up in the form of warps interwoven with a very small amount of weft. The inner and outer surfaces of the envelope are each coated with a layer of rubber or rubber-like plastic.
Patent GB-1218550-A (GB)
Title: Speech transmission circuits
Inventor: JONES MICHAEL JOHN DOBIE
IPC: H04B1/58
Filed: 1967-05-18
Abstract: 1,218,550. Intercommunication circuits. POST OFFICE. 23 May, 1968 [18 May, 1967], No. 23185/67. Heading H4K.  In a conference circuit speech from each subscriber's line is rectified, in a respective detector DET, and added to the speech signal itself, from TS2, to produce a signal which is always of negative polarity. The most negative signal of the signals on lines L1 to L4 opens the respective one of diode gates DI1 to DI4 and closes the remaining gates. The speech frequency component of the signal is selected by filter F1 and amplified by amplifier VA while the D.C. and speech envelope components are selected, by F2, and attenuated by ATT, before being applied to the output gates DO1 to D04 where the D.C. + speech envelope component enables all the gates except that connected to the line from which the speech originates. The circuit is the same as that described with respect to Fig. 7 of Specification 1,131,947 except that the emitter follower of that embodiment is replaced by the dual channel amplifier system VCA of Fig. 3. The arrangement provides compensation for the attenuation introduced by the gating system on the speech signals while maintaining appropriate D.C. biasing to operate the gates appropriately. A circuit for the dual channel amplifier VCA is described with respect to Fig. 4 (not shown).
Patent GB-1092967-A (GB)
Title: A cryogenic surgical instrument
IPC: A61B18/02
Filed: 1966-05-25
Abstract: 1,092,967. Sargical cooling instruments. ALCON LABORATORIES Inc. May 25, 1966 [Dec. 21, 1965], No. 23283/66. Heading A5R. A cryogenic instrument comprises a casing in which is a container 15 of pressurized refrigerant and an expansion chamber 17 from which protrudes a heat-conducting probe 21, the container 15 having an outlet nozzle 41, 42 and being able to be moved, by manually pushing a member 67, against a stop 19 to open a valve in the container and allow the refrigerant to expand into the chamber 17. The actuator member 67 includes a part 25 formed with slots and the refrigerant gas is able to exhaust through these slots and a vent 35 in the casing to atmosphere. The instrument in sterile form may be enclosed in a package.
Patent GB-1057345-A (GB)
Title: A process for the preparation of chromanols
IPC: C11B5/00
Filed: 1965-06-01
Abstract: Chromanols of formula <FORM:1057345/C2/1> where z is <FORM:1057345/C2/2> or <FORM:1057345/C2/3> and R is hydrogen, <FORM:1057345/C2/4> or <FORM:1057345/C2/5> n being an integer from 1 to 9, are obtained by reacting a quinone of formula <FORM:1057345/C2/6> with a compound containing an enediol group (e.g. ascorbic acid, isoascorbic acid, reductone, dihydroxymaleic anhydride or glucoascorbic acid) in the presence of a copper ion or an iron ion.  In examples the corresponding chromanol is obtained from coenzyme Q10, 7,8-dimethoxy-2, 5 - dimethyl - 2 - (41,81,121 - trimethyltridecyl)-6-chromanol is obtained from 2, 3-dimethoxy - 5 - phytyl - 6 - methyl - 1, 4-benzoquinone (hexahydrocoenzyme Q4), a -tocopherol is obtained from 2,3,6-tri-methyl-5-phytyl-1, 4-benzoquinone, and the corresponding chromanol is obtained from vitamin K1(20), all by reaction with L-ascorbic acid in solutions containing cupric chloride, cupric acetate and ferric chloride.
Patent GB-517743-A (GB)
Title: Improvements in electric discharge tubes comprising secondaryemission electrodes
IPC: H01J1/32
Filed: 1938-08-06
Abstract: 517,743. Electron multipliers. NAAMLOOZE VENNOOTSCHAP PHILIPS GLOEILAMPENFABRIEKEN. Aug. 6, 1938, No. 23310. Convention date, Aug. 9, 1937. [Class 39 (i)] A secondary emitting electrode comprises a layer of oxide on a core material and a sensitive layer of an alkali compound practically free from alkali metal on the oxide. In manufacture an oxide such as tungsten, molybdenum, tin, nickel or cuprous oxide is formed as a layer on a base ; raised to a temperature of 150‹-200‹ C. it is brought into contact with caesium vapour, care being taken that only a part of the oxide layer is reduced by the caesium. In working with say a barium thermionic cathode or a caesium caesium photoelectric cathode-if the caesium oxide of the secondary emitting layer is reduced the metal oxide again oxidizes the reduced caesium. Specification 492,250 is referred to.
Patent GB-947679-A (GB)
Title: Improvements in or relating to pulse-position modulated communication systems
IPC: H03K3/027
Filed: 1962-06-18
Abstract: 947,679. Pulse modulation circuits. MARTIN-MARIETTA CORPORATION. June 18, 1962 [Sept. 5, 1961], No. 23328/62. Heading H4L. Position modulated pulses are prevented from passing through a gate to key a transmitter when they are coincident in time with inhibit pulses, this time position representing zero modulation, but are allowed to pass when modulated. The inhibit pulse generator may be rendered inoperative automatically in the presence of modulated pulses. As shown, negative-going position modulated pulses which are derived from duration modulated pulses produced by controlling the output of a sawtooth generator, are fed to the gate 12 via a capacitor 39, and also to a rectifier circuit 13 via a capacitor 41. Positive-going clock pulses controlling the pulse modulator (not shown) are supplied via a differentiator 17, 18 and diode 19 to control the inhibit pulse generator 11, a mono-stable multivibrator, and the arrangement is such that the inhibit pulses occur in the centre of a time slot, this position corresponding to the unmodulated state of the signal pulses. Application of a differentiated clock pulse blocks the normally conducting transistor 21 and transistor 22 conducts for a time determined by circuit 25, 27, the resulting positive pulse being supplied to diode 38 of the output gate 12. Diode 26 and resistor 48 prevent distortion of the trailing edge of the inhibit pulse. When no pulses are present at either input of the gate 12 diodes 31 and 33 conduct and the voltages at points 35 and 32 are almost zero. Point 28 is at a negative potential determined by resistors 24, 36, 37 and diode 38 is backbiased and since diodes 31, 33 are conducting negative-going signal pulses are passed by the gate to key the transmitter. Inhibit pulses applied at point 28 only coincide with unmodulated pulses and thus only affect the gate in this condition. When a signal pulse is coincident with an inhibit pulse point 32 is clamped to zero potential because diodes 33, 38 are conducting due to the inhibit pulse and thus the negative-going signal pulses are blocked by the diode 31. During the normal course of modulation some position modulated pulses may coincide with inhibit pulses and to prevent the resulting loss of signal the modulation signal (before pulse modulation) is fed via a half-wave voltage-doubler rectifier 13 to the diode 19. Thus in the presence of a modulating signal the diode 19 is back-biased and the differentiated clock pulses are blocked so that the inhibit pulse generator 11 is not triggered. When modulation ceases the negative voltage stored in capacitor 42 is discharged via adjustable resistor 46.
Patent GB-240179-A (GB)
Title: Device for washing plates and dishes
IPC: A47L17/00
Filed: 1925-09-18
Abstract: 240,179. Deltheil, R. E. G. Sept. 18, 1924, [Convention date]. No Patent granted (Sealing fee not paid). Plates, dishes, and the like, washing. - In an appliance for washing plates and dishes, warm water is fed through a hollow handle 26 to a dish-cloth 4 by way of a hollow body, 27 provided with a perforated rim 30 connecting the lower parts of the walls of the body 27. As the cloth 4 is rubbed over a plate some of the holes 31 in the rim 30 are closed the remainder permitting water to flow on to the plate. The Specification as open to inspection under Sect. 91 (3) (a) comprises also means for heating the water which, on its way to the dish-cloth, passes through a box containing soap. This subject-matter does not appear in the Specification as accepted.
Patent GB-614865-A (GB)
Title: Improvements in or relating to pick boxes for mining machines
IPC: E21C35/18
Filed: 1946-08-08
Abstract: 614,865. Mining - machines. MUSCHAMP, N. J., and COWLISHAW, F. Aug. 8, 1946, No. 23491. [Class 68 (i)] Relates to pick boxes for coal cutting or other mining machines of the chain type. In Fig. 1, a chain link 1a has spaced side lugs 6 between which is mounted a cutter 8 with radial teeth 9 adapted to be brought successively into operative position; the cutter has an integral axle 15 received in slots 16 in the lugs 6, and is retained by a pin 11 inserted in either of two holes 12, according to the direction of cutting, the ends of the pin being bent over into slots, and rotation of the cutter being further prevented by contact of an idle tooth 9 against an abutment 14. In Fig. 5, a three-pointed cutter has a hexagonal axle 15a and is held against rotation by contact of an idle tooth against either of two abutments 14a. In Fig. 6, the cutter has a removable cylindrical axle 15b held by a bent-over pin 18, the axle being interchangeable with the hinge-pins 2 connecting the chain links.
Patent GB-757003-A (GB)
Title: Improvements in or relating to powder actuated tools
IPC: B25C1/18
Filed: 1953-06-09
Abstract: 757,003. Cartridge-operated tools. PORTABLE INDUSTRIES, Inc. June 9, 1953 [Feb. 3, 1953], No. 23571/54. Divided out of 756,942. Drawings to Specification. Class 119 A cartridge-operated tool comprises a barrel slidable in a housing, a hand grip detachably secured to the rear of the housing, and a spring-loaded magazine in the hand grip for storing discs which can be moved therefrom one at a time and used for controlling the penetration of the fastener which is fired from the barrel. The features of the gun are fully disclosed in Specification 756,942.
Patent GB-1263387-A (GB)
Title: Laser
IPC: H01S3/093
Filed: 1969-05-08
Abstract: 1,263,387. Lasers. MESSER GRIESHEIM G.m.b.H. 8 May, 1969 [10 May, 1968], No. 23580/69. Heading H1C. A laser rod is pumped by at least two light sources each of which is positioned in the focal line of a respective elliptical mirror and at the centre of a cylindrical mirror disposed between the elliptical mirror and the laser rod, the rod being disposed in the common other focal lines of the elliptical mirrors. In the embodiment of Fig. 1 the laser rod 14 is positioned at the common focal line of elliptical mirrors 12 which together with cylindrical mirrors 13 are made of a glass which reflects the desired pumping frequency and absorbs the unwanted heat) radiation produced by lamps 10. Each of the glass envelopes 11 of lamps 10 is provided with a coating 21 corresponding to the opening argle of aperture 19 which is permeable to the pumping frequency and reflects unwanted radiation. Thus radiation from the lamps 10 reaches rod 14 by passing directly 15 through aperture 19, the unwanted radiation being reflected by 21 and being absorbed by mirror 12, by reflection 18 from both spherical and elliptical mirrors 12, 13 or by reflection 17 from only mirror 12. The unwanted radiation 26, 23 being absorbed by mirrors 12, 13 where it is absorbed by sheets 24 through which a cooling liquid flows. The structure may in addition be enclosed by a casing through which a cooling fluid flows and the laser rod may be cooled by a cooling fluid flowing through a central aperture. In an alternative embodiment, Fig. 2 (not shown) the spherical mirrors 13 are made of a material which reflects or absorbs the unwanted radiation and are continuous. An " aperture " is provided by coating the internal surface of the spherical mirrors with a layer which reflects all the radiation from the pumping sources and leaves uncoated the region corresponding to aperture 19 of Fig. 1. The glass rod 11 of the pumping source 10 may not be provided with coating 21 in which case the laser rod is surrounded by a glass tube, Fig. 3 (not shown) which projects into the apertures 19 and virtually closes them, the unwanted radiation being absorbed by water flowing through the glass tube. Alternatively the spherical mirrors 13 may be provided with both an aperture 19 and a reflecting coating, Fig. 4 (not shown) in which a glass tube is provided round the laser rod and the light sources through which a liquid is passed to absorb the unwanted radiation.
Patent GB-907750-A (GB)
Title: Improvements in or relating to arc welding
IPC: B23K9/073
Filed: 1959-07-09
Abstract: 907,750. Welding systems. LINDE'S EISMASCHINEN A.G., GES FUR. July 9. 1959 [July 12, 1958], No. 23630/59. Class 38 (4). In an arc welding circuit having electrodes 3, 4 fed from a transformer 1 and a second transformer 6 supplying a capacitor 9 discharging through a non-linear switching device 10 such as a spark-gap, the capacitance of the capacitor is so related to the characteristics of the second transformer that the ratio of magnetic and electrostatic energies stored is an integer, preferably one, and the switching device is adjustable so that the capacitor may give a single spark, or two successive sparks of reduced magnitude. The spark-gap may be adjustable to facilitate the matching of the capacitor and the second transformer. High-frequency chokes 14-17 may be provided to lengthen the pulse duration and a damping capacitor 18 may be provided.
Patent GB-674515-A (GB)
Title: Improvements in liquid pressure servo braking systems for vehicles
IPC: B60T13/14
Filed: 1950-09-27
Abstract: 674,515. Hydraulic brakes. COATALEN, L. Sept. 27, 1950 [Oct. 3, 1949], No. 23704/50. Class 103 (i). In a hydraulic braking system for vehicles, the brakes comprise two groups each operated by one of two liquidpressure circuits having no liquid connection between them, each circuit including a pressure generator, a reservoir from which the pressure generator draws liquid, and a control valve for connecting the brake-operating cylinders in that circuit to either the pressure generator or the reservoir, the two control valves being controlled by a single control member through a differential device. In the embodiment shown the front brakes A<SP>1</SP> and the rear brakes A<SP>2</SP> of a vehicle are operated by hydraulic systems having independent liquid circuits but controlled by a single pedal G. Each circuit comprises a pump, a liquid reservoir, a cut-out valve of known type, an accumulator and a control valve, they being designated 11, 12a, C<SP>1</SP>, D<SP>1</SP>, E<SP>1</SP> and 11, 12b, C<SP>2</SP>, D<SP>2</SP>, E<SP>2</SP>, respectively. When the accumulators, each of which contains an inflated bladder 39, are charged, a valve 29 in the cut-out valve C lifts and the pump 11 circulates liquid idly through pipes 15, 36 back to the reservoir. Each control valve comprises a piston 51 connected by a pivoted lever 71 to one end of a link 70a, the middle of which is pivoted at 70 to a rod 69 slidable in a member 65 which is operable by the pedal G. A " graduating " spring 67 is interposed between the members 65 and 69. In the position shown, the piston 51 allows communication between the brake-operating cylinders 6 and the reservoir 12 by way of a passage 49 in the piston and a pipe 56. Depression of the pedal G closes the passage 49 by a ball 48 and opens a valve 46 to establish communication between the accumulator D and the brake cylinders 6 by way of pipe 42 and the valve guide 44, thus applying the brakes. The brake cylinder pressure acting on the piston 51 balances the force applied to the pedal and is proportional to that force since the spring 67 allows the piston 51 to move to open or close valves 46, 48 to allow fluid to flow into or out of the chamber 45 until that condition obtains. Should a leak develop in one system the brake controlled by the other system will remain operative.
Patent GB-806574-A (GB)
Title: Improvements in and relating to blowpipes
IPC: F23D14/32
Filed: 1956-08-17
Abstract: 806,574. Gas burners. RIDER, T. R. Aug. 17, 1956, No. 23758/55. Class 75(1) A blowpipe comprises a member 38, Fig. 5, having formed thereon or attached thereto a plurality of gas nozzles 39 of different bore diameters, and a device 40 for actuating the nozzle member 38 to bring a selected nozzle into an operative position in which the nozzle is either inserted into or located around the mouth of a gas mixture discharge tube 17 in a gas tight manner. The nozzle member 38 is also provided with a gap through which the mixture discharge tube 17 may project. The actuating device 40 comprises a spindle brazed to the nozzle member 38 andslidable through holes in lugs 30, 31 on the discharge tube 17. A compression spring 41 is located between nuts 44, 45 on the free end of the spindle and the lug 31 and is encased in a sleeve 42 adapted to telescope in a tube 43 mounted on the lug 31. In a modification the lugs 30, 31 have grooves instead of holes and the spindle is held in the grooves by blade springs secured by studs to the lugs. Fig. 7 (not shown) shows nozzles having either tapered or part spherical outer surfaces for fitting into the mouth of the gas discharge tube 17 or tapered inner surfaces for fitting over the mouth of the gas discharge tube. The latter may be tapered internally or externally. The nozzles may be formed by cutting tapered holes in the nozzle member; the tapered holes may extend only partly through the nozzle member, the remainder being bored to different diameters. The burner shown in Fig. 2 comprises a circular base plate 2 having a recess accommodating a plate 1 screwed to a bench. The base plate 2 is rotatable on the plate 1 and is secured in set position by a pin 7 which is a push fit in a hole in the base plate and in a series of circularly disposed holes 4 in the plate 1. The main body 11 of the burner is pivotally secured to the base plate 2 by a stud 6 on the main body 11 passing through a lug on the base plate. The main body is clamped in set position by a nut on the end of the stud. The stud and lug may be replaced by a spring loaded ball and socket joint. The main body 11 is tubular and has spigots 12, 13 for connection to oxygen and gas supply pipes. A mxing chamber 16 fits into the open upper end of the main body and has an outwardly directed flange having apertures for receiving pins 26 projecting from the main body. A gland nut 23 screws on to the upper end of the body to hold the mixing chamber therein with its lower end pressed against a washer 21 seated on an internal shoulder in the body. The oxygen enters the mixing chamber through an aperture 22 in its lower end and gas enters through apertures in the side wall. The discharge tube 17 has a side socket brazed to the top of the mixing chamber. An air pipe 33 having an adjustable jet 33a extends axially through the discharge tube 17. In a modification the base is replaced by a handgrip. In another burner having a handgrip the burner is supplied by flexible tubing with a combustible mixture from the discharge tube of the burner shown in Fig. 2.
Patent GB-207851-A (GB)
Title: Improvements in and relating to the manufacture of combustible gases
IPC: C10J1/213
Filed: 1922-09-01
Abstract: 207,851. Broadhead, C. F., Barker, F. G., and Hunt, P. C. H. Sept. 1, 1922. Spray carburettors.-In a complete gasification process in which a retort is superposed on a gas producer, gas is withdrawn during the up-and-down runs through pipes 31 and 32 respectively, and is passed to a carburettor 38 in which it bubbles through a tar or oil seal 39 and is treated with an oil spray 40 for carburetting or enriching the gas.