baber/WOPTO huggingface dataset:
Patent GB-474264-A (GB)
Title: Improvements in electric discharge devices
IPC: H05B41/22
Filed: 1936-07-03
Abstract: 474,264. Converting. GENERAL ELECTRIC CO., Ltd., and PRINZ, D. G. July 3,1936, No. 18522. [Class 38 (ii)] [Also in Group XL] To start the arc at a desired point in each cycle of a discharge device which has a cathode 2, Fig. 1, from which vapour is generated during operation, an impulsive voltage is applied to an external electrode 6 arranged near the cathode to form the cathode spot, and a voltage is applied to an internal auxiliary electrode 5 to maintain the spot until the main discharge is initiated. The electrode 5 may consist of a wire sealed through the glass wall or of a ring and the electrode 6 may consist of a wire or of a metal foil surrounding the mercury pool. The electrodes 5, 6 are connected together preferably through a resistance 14 and are fed with intermittent potential through a transformer 7 by means of a discharge tube 10 the grid of which is connected to a source 13 of alternating current through a transformer 11 and to a source 8. A battery 12 supplies a bias potential to the grid. Phase shifters may be provided for one or both of the sources 8, 13 which have the same frequency as that supplied across the converter 1. In another form, a circuit comprising an alternating-current source 8, Fig. 2, condenser 10 and spark gap 9 supplies peak voltages through a transformer 7 to the electrode 6. The negative peak voltages may be supplied through a further transformer to other rectifiers of a two, six or twelve phase rectifying arrangement. An auxiliary discharge to the electrode 5 is maintained until the main discharge is started by a circuit comprising a source 14 of direct current, resistances or inductances 15, 17 and a condenser 16. In a further form, the transformer 7, Fig. 3, produces peak potentials which are preferably transmitted through a spark gap 18 to the electrode 6. A leak resistance 19 is provided.
Patent GB-864941-A (GB)
Title: Improvements in magnetometers of the precessing atomic portion type
IPC: G01R33/24
Filed: 1958-06-10
Abstract: 864,941. Magnetic tests. VARIAN ASSOCIATES. June 10, 1958 [Nov. 12, 1957], No. 18555/58. Class 37. In a magnetometer of the type utilizing free precession of gyromagnetic nuclear bodies in which a polarizing field is first applied and then removed and the subsequent free precession of the nuclei is detected by a receiving coil, the receiving coil is first connected to a circuit which damps out transients produced by the collapse of the polarizing field and then connected to the receiver circuit of the apparatus. Fig. 1 shows such a magnetometer without the damping device. Sequencer 13 operates relay 14 to connect polarizing coil 12 to a power supply 13 and then to an amplifier 16. After passing through an amplitude limiter the signals caused by the precession of the nuclei are counted at 18 by a circuit which opens a gate on receipt of the first pulse and closes it when a predetermined number has been counted. When the gate opens a standard frequency from a source 21 passes to a second counter 22 which counts the cycles of this frequency until the predetermined count has been made on counter 18. The number of cycles completed is recorded at 23 and is a measure of field strength during the free precession. Fig. 2 shows the circuit for eliminating transients. Slow to release relays 24, 25 are connected in parallel to a supply so that when both are operated coil 12 is energized to produce the polarizing field. The supply to the relays is then cut off. Relay 24 de-energizes first because of the time constant of circuit 27, 28, 29 and disconnects the polarizing supply. Energy induced in coil 12 by the collapsing field is dissipated in an arc across the contacts of relay 24 and the remaining energy is dissipated, in a circuit including resistors 35 to 39 and condenser 41 which is critically damped so that the energy in the sensing coil is dissipated in less than 1 cycle of oscillation. Relay 25 releases when dissipation is complete and connects coil 12 to the measuring circuit. Rectifier 34 prevents the time constant circuit of relay 24 from affecting that of relay 23. Both the damping and receiver circuits are balanced to ground.
Patent GB-1056472-A (GB)
Title: Process for the production of images or printing plates
Inventor: MADER HELMUT
IPC: C07D317/46
Filed: 1964-05-05
Abstract: 1,056,472. Photographic masked tanning developing agents. AGFA A.G. May 5, 1964 [May 7, 1963, No.18657/64. Heading G2C. A heat-activated masked tanning developing agent of the formula:- wherein R1 is hydrogen and R2 is halogen, hydroxy, allyl, cycloalkyl or phenyl or, together with R3, forms a fused-on benzene ring, or R1 is hydroxy and R2 is hydrogen, and R3 is hydrogen or together with R2 forms a fused-on benzene ring, is used in transfer processes in which an exposed silver halide emulsion layer containing such a developing agent is developed by heating to 90‹-200‹C. in contact with a receiving sheet, or is developed by heating to 90-200‹C. and then brought into contact with the receiving sheet at 50-200‹C., either (a) the unexposed and undeveloped portions of the emulsion layer adhering to the receiving sheet or (b) a dye layer of the receiving sheet adhering to the unexposed and undeveloped portions of the emulsion layer. Moisture-supplying compounds may be present in the emulsion or in the receiving sheet. In (a) above, the receiving sheet may contain thiosemi-carbazides (see Specification 984, 838) or sulphur compounds and a sulphonyl hydrazide or a compound containing the group #-C-NH-N< (see Specification 1, 020, 066) to obtain an immediate black image or the emulsion may contain a leucophthalocyanine and the receiving sheet or reducing agent therefor to give a blue-black image.
Patent GB-1084431-A (GB)
Title: Improvements in and relating to lipases
Inventor: MAUVERNAY ROLAND YVES
IPC: C12N9/20
Filed: 1964-05-06
Abstract: In a process for the preparation of a stable lipase of high activity, a culture is made with aeration and stirring with a species of microorganism chosen from Mucor Hiemalis, Rhizopus Delemar and Rhizopus Arrhizus on a nutrient medium containing organic substances, nitrogen sources and mineral elements, and if desired vitamins, the culture is continued until the moment when the enzymatic activity of the medium remains constant, the culture medium is separated by filtration from the filtrate and the lipase contained in the filtrate is collected. The separated enzyme may be purified by fractional precipitation, dialysis or the use of a cation exchange resin or molecular sieve.ALSO:A therapeutic composition useful in treating pacreatic insufficiencies &c. comprises a microbial lipase (see Division C3) plus an excipient, in the form of tablets (which may be effervescent) or capsules for oral administration; or the lipase dissolved in physiological saline or a buffer may be injected.
Patent GB-724174-A (GB)
Title: Improvements in the heating of oil or the like stored on a water-bed in a storing container
IPC: B65G5/00
Filed: 1950-07-27
Abstract: 724,174. Raising liquids by liquid pressure. EDHOLM, H. July 27, 1950. [July 27, 1949 ; Jan. 26, 1950] No. 18844/50. Class 102 (2). [Also in Group XIII] A method of heating oil and withdrawing the heated oil from a container in which a column of oil rests on a water bed having a variable upper level comprises the steps of supplying heat mainly to at least a portion (preferably the lower part) of the oil column while it is resting on the water bed, drawing heated oil from the upper part of the oil column and raising the interface between the oil and the water bed by supplying to the lower portion of the water bed, water of a temperature which is lower than that of the heated oil. In the preferred arrangements a central zone 11 of heated oil is maintained in the mass of oil and heated oil from the lower part 10 of the oil mass is withdrawn upwardly through this zone by way of a pipe 5 which serves also for passing oil into the container for storing when required. At the same time cold water is added to the water bed through pipe 6 so that the oil level at the surface (2) remains constant. The heating may be effected by heating the upper layers of the water bed (e.g. above the level 9) indirectly by the insertion of an electric, steam or hot-water-heated heat exchanger 8, or directly by adding hot water to the top of the water bed and simultaneously withdrawing cold water from the bottom of the water bed. The main bulk of the water bed may be salt water so that any added hot fresh water remains at the top of the water bed adjacent the lower layers of the oil. Alternatively the lower layers of the oil may be heated by the insertion of a heating unit into the oil and in this form the heater may extend into the upper zone of the water bed for further heating of the oil. The heating unit may be movable vertically so that its position may be adjusted to correspond to the position of the lower layers of the oil. Alternatively the heating unit may be in sections arranged one above the other (Fig. 13 not shown) and so coupled, together that the heating unit conveniently nearest to the lower layers of the oil mass may be brought into operation when required. An auxiliary heater may be incorporated near the top of the container adjacent the outlet to heat up and liquefy the sediment and sludge left floating on the water bed when all the usable oil has been withdrawn.
Patent GB-754042-A (GB)
Title: Improvements in side-discharging trucks
IPC: B61D7/08
Filed: 1954-06-28
Abstract: 754.042. Adjustable links. GUTEHOFFNUNGSHUTTE STERKRADE AKT.-GES. June 28, 1954 [July 29, 1953], No. 18850/54. Class 80(3) [Also, in Group XXV] In a side-discharging wagon with a tophinged door 2 actuated from a shaft 15 by an arm 12 and link 13 which lock the door closed by moving over dead-centre, the link is provided with an extension 40 to allow the door to be opened wider than normal when necessary. In the arrangement shown the extension is pivoted to the door at 17 and slidably connected to the link 13 by pin and slot 41, and is normally held in a limited-opening position by a detent 46 pivoted on the link engaging a nose 43 nn the extension. The detent is actuated by a handle 44 and is biased to the engaging position by a leaf spring 47; it is locked when the door is closed by the handle resting on the hub of the arm 12.
Patent GB-856714-A (GB)
Title: A connection for drill tubes
IPC: E21B17/046
Filed: 1958-06-13
Abstract: 856,714. Shaft couplings. BADE & CO. G.m.b.H. June 13, 1958 [April 11, 1958], No. 18933/58.. Class 80 (2). [Also in XXVIII] In a connection for drill tubes one end 1 of each tube has welded thereto an intermediate member 3 having alternate undercut seatings 14 and cam surfaces 15 whilst the other end 2 has welded thereto a double-walled intermediate member 5 carrying bolts 12 and pivoted clamping members 8 which, when turned in the direction of the arrow (Fig. 6), push and lock the bolts 12 in the seatings 14. Holes 10 are provided in the periphery of the tube for the insertion of a key to operate the clamping members.
Patent GB-1179794-A (GB)
Title: Improvements in or relating to Spinning and Twisting Apparatus
Inventor: HORTAL FRANCISCO TULLEUDA
IPC: D01H1/06
Filed: 1967-04-25
Abstract: 1,179,794. Spinning &c apparatus. F. T. HORTAL. 25 April, 1967 [27 April, 1966], No. 19046/67. Heading D1D. Apparatus for spinning or twisting comprising a rotatable spindle for winding yarn into a cop and a member forming a thread guide surface concentric with the spindle, the member being reciprocable lengthwise of the spindle and mounted on a shaft independent of the spindle for rotation about the axis of the spindle and in the same direction as the spindle. As shown, yarn fed by rollers 9 through an eyelet 10 passes over the edge of a rotated and reciprocated cylinder 3 to be taken up on a rotated bobbin 4. The cylinder shaft 2 is rotatably mounted inside the bobbin shaft 1, the shafts being driven by pulleys 7, 6 respectively and shaft 2 being reciprocated.
Patent GB-597100-A (GB)
Title: Improvements relating to electric pulse transmission circuits
IPC: H04L25/04
Filed: 1945-07-25
Abstract: 597,100. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and LONG, D. P. July 25, 1945, No. 19080. [Class 40 (iv)] A pulse repeating relay is operated by pulses of duration sufficient to hold the relay until the current in a pulse repeating circuit, which includes a coil of the relay, is sufficient to hold the relay, but not long enough to hold the relay after the operation of apparatus by the repeated pulse. The release of the pulse repeating relay is arranged to take place independently of the position of the contact of the pulse generator which energizes it. As shown in Fig. 1, high-speed relay X repeats pulses from the generator contact p<1> to the relay chain A ... D. When contact p<1> is closed, condenser Q charges to operate X over its left-hand high resistance coil for a time sufficient to allow the current supplied over a coil of relay A to rise sufficiently to hold X over its right-hand low resistance coil. Relay A operates to short-circuit and so release X at a<1>, and transfer at a<2> the operating circuit to relay B, the current in the left-hand winding of X having now fallen below its holding value. Relay A locks over its lower coil. On the next pulse relay B is operated and releases A whose coils are wound differentially to quicken the release on change-over of b<2>. Relays A ... D operate to successive pulses and D locks, whereupon A, B, C operate on succeeding pulses and C locks, and so on, so that 10 pulses can be registered by various combinations of the relays. Operation of X may instead be effected by a release contact of the generator, Fig. 2 (not shown). Relay X may have only one coil of low resistance, Fig. 3 (not shown), being. held over this coil as before in series with the pulse repeating circuit and operated over this coil by the condenser in series with a high resistance. Relay X may be released by a break in the holding circuit instead of by short-circuiting as described above. Specifications 462,773 and 573,885 are referred to.
Patent GB-613714-A (GB)
Title: Improvements in and relating to the refining of lead
IPC: C22B13/08
Filed: 1946-06-26
Abstract: A method for refining impure, and more particularly silver-containing lead, consists in adding to the molten lead a quantity of zinc, just sufficient for decreasing the arsenic content to the desired value, in stirring together the lead and zinc, then in allowing the mixture to cool while constantly eliminating the overlying layer which forms, after which the copper, silver and other precious metals which may be present are elminated by any known refining operation, for instance, by a further addition of zinc followed by stirring and removal of the overlying layer.  The quantity of zinc used to remove arsenic depends on the initial arsenic content of the lead and also the copper content, if copper is present, and it is greater, the higher the contents of arsenic and copper and the higher the temperature at which the removal of the overlying layer is completed.  The elimination of precious metals may follow immediately after removal of the arsenic or the lead may be solidified between the two treatments.
Patent GB-256613-A (GB)
Title: Improvements in exchange packages for photographic plates
IPC: G03B17/34
Filed: 1926-08-03
Abstract: 256,613. Itomanowicz, M., and Romanowicz, J. Aug. 4, 1925, [Convention date]. Change-boxes, self-contained. - In a changebox of the kind in which a long pulling strip and a protective strip of substantially the same size as a plate are attached to the same edge of each plate, and in which, on pulling the appropriate strip, the exposed plate is moved first laterally in its own plane until it is clear of the pile of plates, then at right-angles to its plane until it reaches a plane in rear of the pile, and finally laterally in this plane into position behind the pile, the pulling strip is located between the plate and the protecting strip, and a backing strip of greater length than the plate mav be provided, attached to the same edge of the plate as the pulling and protecting strips, and located between the plate and the pulling strip. In Fig. 6 is shown a change-box comprising plates 1, 11, 21 each provided with a pulling strip 4, 14, 24 and a protecting strip 3, 13, 23, the plates being urged towards the exposure aperture in the box by a spring-pressed plate 22. The plate 1 has been changed, and its surface is protected by the strip 3. The plate 11 is being changed, and the Figure indicates how the strip 13 protects both the plate 11 and the plate 21 from injury by the sliding of one over the other. In the modification shown in Fig. 11, adapted more particularly for plates which are sensitized on the back, a backing strip 16, 26 is also provided on each plate excepting the first plate 1; this strip is almost as long as the pulling strip, and serves in the manner indicated to protect the back of the plates during the change movement. The box may contain flat films instead of plates. The Specification as open to inspection under Sect. 91 (3) (a) states also that the free end of each protecting strip is turned down over the edge of the plate immediately in its rear. This subject-matter does not appear in the Specification as accepted.
Patent GB-368177-A (GB)
Title: Improvements in high tension electric generators
IPC: H02K1/16
Filed: 1931-07-03
Abstract: 368,177. Dynamos. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. July 3, 1931, No. 19205. Convention date, Aug. 25, 1930. [Class 35.] Cores ; windings.-In a high tension generator having at least two windings a, b arranged in common slots in the stator iron, projections c, d are provided on the iron between the windings which reduce the cross sectional area of the slot. The object of the invention is to increase the leakage flux between the separate windings as is desirable when the windings are connected to separate networks.
Patent GB-934449-A (GB)
Title: Improvements in or relating to the isomerisation of hydrocarbons
IPC: B01J27/24
Filed: 1960-05-31
Abstract: The isomerization of mono-olefins, by the migration of a double bond and/or alkyl group is effected in the presence as catalyst of a lamellar complex of an alkali metal and carbon.  Particularly suitable feeds are hexenes obtained by dimerizing propylene in the presence of aluminium alkyls, promoted aluminium alkyls, supported transition metal oxides, phosphoric acid or an alkali metal supported on an anhydrous potassium compound.  Suitable complexes are KCx where x is 8, 16, 24, 36, 48 or 60 or NaC64 in which the carbon is graphite; the catalyst may contain free alkali metal and/or carbon of the same or different crystal structure and the carbon may contain impurities such as iron, silicon or aluminium which may be added if desired.  Suitable conditions are 50 DEG -400 DEG C. and 50-4000 p.s.i.g.  The isomerization of other hexenes to 2-methylpentene-2 is exemplified.  Specification 933,253 is referred to.
Patent GB-311587-A (GB)
Title: Improvements relating to gas producers
IPC: C10J3/34
Filed: 1928-07-03
Abstract: 311,587. Broughton, F. L., and Hadlington, D. July 3, 1928. Producers.-In a gas producer a having a rotary fuel-supporting plate c, steam is supplied through a pipe x which extends upwardly through the central blast-pipe t and terminates in radial jets y disposed beneath the hood z. To prevent clinker adhering to the producer walls, a further supply of steam is admitted through nozzles 7 arranged above the level of the hood z.
Patent GB-749966-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01P3/02
Filed: 1954-07-01
Abstract: 749,966. Cables. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 1, 1954 [July 4, 1953], No. 19309/54. Class 36. A cable comprises at least two parallel conductors 1 enclosed in insulation 2 having a low dielectric constant and low dielectric losses, the surface of the insulation between two of the conductors being formed with at least one sharp protruding ridge 3 on each side, which extends longitudinally of the cable. One or more cavities 4 extending longitudinally of the cable may be formed in the insulation. In a fourconductor cable the conductors may be arranged in or near the apices of the ridges 3 (Fig. 8), or each ridge may be disposed between two adjacent conductors.
Patent GB-613726-A (GB)
Title: Improvements in and relating to fluid pressure supply lines
IPC: B60S5/04
Filed: 1946-06-28
Abstract: 613,726. Piston valves. TURNER, W. June 28, 1946, No. 19346. [Class 135] [Also in Group XXVIII] A piston valve for use in a fluid-pressure supply line, such as is used for inflating vehicle tyres, comprises a plug 5 slidable in a bore 6 at right angles to the main bore 2a of the supply line, the valve being maintained in its normal open position (as shown), by means of a coiled spring 7. The plug is held from complete removal from its bore by a cap 8, screwed into the body of the line, and a flange 5a on the plug which co-operates, through the intermediary of a sealing washer 9, with the cap. The plug projects through a hole 9d in the cap, so that it can be depressed manually to interrupt the flow of fluid through the bore 2a.
Patent GB-789547-A (GB)
Title: Improvements in the colouring of textile materials with vat dyes
Inventor: OLPIN HENRY CHARLES
IPC: D06P3/46
Filed: 1955-07-05
Abstract: Cellulose triacetate textiles are dyed or printed by applying a composition comprising a vat dye, thiourea dioxide and zinc thiocyanate, steaming and oxidizing.  The composition may also contain urea and/or a di- or polyalkylene glycol.  Oxidation may be effected by an alkali metal dichromate solution acidified with acetic acid or by sodium percarbonate.  Vat dye may be removed from the surface of the material by treatment, after oxidation or preferably after steaming and before oxidation, with a solution containing sodium hydrosulphite and caustic soda, if desired together with polyvinylpyrrolidone.  Coloured discharge effects may be produced by predyeing the textile with a dyestuff which is dischargeable by the vat dye composition and then printing with the latter composition. The cellulose triacetate textile fibres may be produced by the wet, dry or melt spinning techniques as described in Specifications 687,414, 719,853, 721,674, 726,900, 731,930 and 748,772, [all in Group IV (a)], or by the further acetylation of fibres of lower acetyl value as described in Specifications 448,816, 448,817 and 448,917, [all in Group IV]. Triacetate fibres of a high safe-ironing temperature as described in Specification 758,442, [Group IV (a)], may also be treated.