baber/WOPTO huggingface dataset:
Patent GB-1381117-A (GB)
Title: Process for refining zirconium tetrachloride containing hafnium tetrachloride and apparatus therefor
IPC: C01G25/04
Filed: 1971-12-29
Abstract: 1381117 Fractional distillation H ISHIZUKA 29 Dec 1971 [28 Dec 1970 20 Nov 1971 6 Dec 1971] 60290/71 Heading B1B [Also in Division Cl]  Zirconium tetrachloride which is contaminated with hafnium tetrachloride -is refined by passing the vapour of the crude material through pipe 24 into a fractionation apparatus comprising a cylinder 14 which rotates within, but is spaced from, an outer cylinder 12, the latter, in one embodiment, being maintained at a temperature slightly above the sublimation temperature of ZrCl 4  while the inner cylinder 14 is maintained at a temperature slightly below the sublimation temperature, so that ZrCl 4  condenses in the solid state thereon. The solid deposit is continuously dislodged by spiral scraper 13 which secured to and extends from the inner surface of cylinder 12 to the outer surface of cylinder 14; and as the solid moves downwards it is continuously submitted to partial re-vaporization and re-condensation as the solid and vapour contact the cylinders 12 and 14 respectively. Alternatively, cylinder 14 may be maintained at a higher temperature than cylinder 12 in which case the scraper is secured to cylinder 14. The result is that vapour comprising ZrCl 4  enriched in HfCl 4  flows out of the upper part of the apparatus through pipe 28, while purified ZrCl 4  powder collects in receiver 121. This receiver is heated by furnace 20, and is separated from cylinder 12 by heat-insulating member 22. The receiver is provided with rotary agitator 141, and it may contain metallic balls. Refined ZrCl 4  powder is removed through pipe 26. In a modified apparatus (Fig. 2, not shown), the purification is achieved by fractional sublimation between two co-axial conical surfaces. In the fractionator shown in Fig. 3, the outer cylinder 52 comprises a plurality of heating trough portions which hold molten salt or double salt of alkali metal chloride or alkaline earth metal chloride capable of forming a double salt with both ZrCl 4  and HfCl 4 . The vapour of crude ZrCl 4  is introduced through pipe 64; and the rotary inner cylinder 52 is maintained at a temperature slightly below the sublimation temperature of ZrCl 4 . Refined ZrCl 4  collects in receiver 521 where it again forms a double salt with alkali metal chloride or alkaline earth metal chloride charged thereto. When a predetermined amount of double salt has been formed in receiver 521, the feed supply through pipe 64 is discontinued, and receiver 521 is heated by furnace 60 to drive off HfCl 4  through pipe 68. Then pipe 68 is closed and refined vapours of ZrCl 4  are delivered through pipe 66.
Patent GB-1249490-A (GB)
Title: New sulphamyl-benzoic acid derivatives
Inventor: FEIT PETER WERNER
IPC: C07D295/12
Filed: 1968-12-24
Abstract: 1,249,490. Antihypertensive &c. medicines. LOVENS KEMISKE FABRIK PRODUKTION SAKTIESEL SKAB. 22 Dec., 1969 [24 Dec., 1968; 18 June, 1969; 29 July, 1969], Nos. 61339/68, 30898/68 and 38038/69. Heading A5B. [Also in Division C2] Pharmaceutical preparations, especially suitable for treating hypertension and oedematous conditions, contain I (including salts, esters, amides and hydrates thereof) as active ingredient where A signifies NR 1 R 2 , OR 2 , SR 2 , SOR 2  or SO 2 R 2 , R 1  to R 4  are optionally substituted, saturated or unsaturated radicals and accordingly signify aliphatic or cycloaliphatic radicals or aromatically, cycloaliphatically or heterocyclically substituted aliphatic radicals, R 2  and R 3  can also be aromatic and heterocyclic radicals and NR 1 R 2  can also signify a heterocyclic ring system with 5 to 8 ring members, R 5  is alkyl, R 6  is alkyl or acyl and R 1 , R 3 , R 4 , R 5  and R 6  may also signify H; e.g. 3-butylamino- 4-phenoxy-5-sulphamoyl-benzoic acid and its derivatives. Other actives may also be incorporated in the preparations, e.g. other hypotensives, and/or tranquilizers, and/or potassiumsparing diuretics and/or saluretics, such as Rauwolfia and veratrum alkaloids, hydralazine, methyldopa, triamterene, 3,5-diamino-6- chloropyrazinoylguanidine, meprobamate, hydroflumethiazide and bendroflumethiazide; carboanhydrase inhibitors and aldosterone antagonists, e.g. spironolactone, may also be utilized in the preparations. Administration is, e.g. enterally or orally.
Patent GB-1254859-A (GB)
Title: Voltage acceptor circuit and overvoltage-undervoltage detector for use therein
IPC: H02H11/00
Filed: 1968-12-30
Abstract: 1,254,859. Transistor switching circuits. WESTINGHOUSE ELECTRIC CORP. 30 Dec., 1968 [2 Jan., 1968], No. 61584/68. Heading H3T. [Also in Division H2] In an automatic synchronizing system for A.C. generators the output voltage of a generator is applied to terminals 41, 42 whilst the voltage at the bus-bar is applied to terminals 11, 12. When they are within a range, set by a potentiometer 111, having a median value, set by a potentiometer 91, an output signal is developed at a terminal 140 to allow connection of the generator to the bus-bar. D.C. voltages 60, 83 derived from the generator and bus-bar voltages respectively are connected to the bases of transistors 63, 71 and by way of diodes 107 108, to the emitter of transistor 88. Furthermore, the D.C. voltages are connected to the base of a transistor 31 by way of diodes 27, 57. If, for example, the generator output voltage is below the range set by potentiometers 91, 111  say 120 volts minus 10 volts, transistor 63 will conduct. In consequence transistors 72, 117 will be blocked and transistor 131 conductive. thus no output signal will be present at terminal 140. As the generator voltage rises and gets within the set range of 120 volts plus or minus 10 volts transistor 63 will become blocked, transistors 72, 117 conductive, transistor 131 blocked, thus an output signal will appear at terminal 140 so permitting connection of the generator to the bus-bar. If the generator voltage increases further the base of transistor 63 will follow until the generator voltage reaches the median value of 100 volts. At this point the base of transistor 63 will be clamped by diode 108 to the emitter voltage of transistor 88. A further increase in generator voltage will forward bias diode 57, reverse bias diode 100 whereby the emitter of transistor 31 will follow so increasing the threshold value of the voltage detecting apparatus. When the generator exceeds the upper limit of the set range, viz. 130 volts, the threshold will be so high that the transistor 63 will conduct again with the consequent disappearance of the signal at terminal 140. Thus the action of the synchronizing system will be inhibited. In a second embodiment the apparatus is arranged to produce an output signal when the two voltages are outside the required range and vice versa.
Patent GB-1276109-A (GB)
Title: Improvements in or relating to bogie suspension systems
IPC: E01C19/48
Filed: 1969-12-23
Abstract: 1276109 Bogie suspension systems BLAW KNOX CO 23 Dec 1969 [27 Dec 1968] 62569/69 Heading B7D [Also in Division E1] In a bogie suspension system for an asphalt paving machine having a front bogie 32 with two pairs of wheels 40, 42 mounted in tandem, connecting means pivotally connecting the bogie frame 34 to the main frame 12 of the machine are offset from the mid-point between the axles of the bogie wheels 40, 42, and/or the forward wheels 40 are of a greater diameter than the rearward wheels 42, whereby the total rolling resistance of the bogie wheels 40, 42 over terrain which is compacted by the passage thereof is reduced. As shown, the bogie wheels 40, 42 are rigid wheels of equal size and the bogie frame 34 is connected to the main frame 12 by a pivot shaft 36 which is located closer to the rearward wheels 42 than the forward wheels 40 so that the rearward wheels 42 carry more than one half of the total weight on the bogie. The main frame 12 carries a hopper 14,-a surface template 16, a driver's station 20 and an engine 22. A slat conveyer 24 carries asphalt from the hopper 14 to an auger 26 which distributes it uniformly in front of the template 16.
Patent GB-659215-A (GB)
Abstract: 659,215. Magnetic dust structures. BRITISH THOMSON-HOUSTON CO., Ltd. May 6, 1949, No. 12164. Convention date, May 7, 1948. Drawings to Specification. [Class 38 (ii)] [Also in Groups XXXVII and XL (a)] A permanent magnet comprises a sintered mixture of 30 parts of Fe 2 O 3'  44 parts of Fe 3 O 4 , and 26 parts of CO 2 O 3 .
Patent GB-689596-A (GB)
Abstract: 689,596. Spinning spindle mechanism; driving and braking arrangements. BIRKIGT, L. Sept. 21, 1950 [Oct. 11, 1949; March 2, 1950], No. 23202/50. Classes 120(ii) and 120(iii) [Also in Group XXXIV] A spinning spindle driven by worm gearing has the worm carried by a sleeve journalled in a stationary part of the machine with the lower portion of the spindle passing through it, play being provided between the sleeve and the portion of the spindle located within it, so that radial displacements of the spindle are possible, whilst the transmission of vertical movements from the driving mechanism to the spindle is avoided. In one embodiment, the lower part of the spindle passes through a sleeve 7 carrying teeth meshing with a worm wheel 3. The sleeve 7 is mounted in bearings 5, 6 in a stationary tubular member 4 provided at its lower end with a plug 10 in which a thrust bearing 11 for the spindle is formed. An upper bearing is surrounded by a resilient ring 9, preferably of rubber, and, in order to compensate for relative movements between the spindle and sleeve 7, a coupling constituted by projections 13 on the spindle engaging in recesses 14 in the sleeve 7 is provided to transmit the drive. A frusto-conical friction element 15 fixed to the spindle drives the bobbin through friction contact with the inside of a frustoconical element constituting the bottom of the bobbin. In order to disconnect drive to the bobbin, a pivoted lever may be raised to bring brake shoes 19 into contact with a braking surface 16 to raise and stop the bobbin. In an alternative embodiment. the drive from the sleeve 7 to the spindle is made through a centrifugal clutch and a.lubricant pump is provided by means of borings in the base of the spindle.
Patent GB-2022428-A (GB)
Title: Water distilling apparatus
IPC: B01D3/14
Filed: 1978-06-02
Abstract: A water distilling apparatus is provided with means for removing water mist and droplets from steam, thereby removing pyrogens and minerals to a very high degree, making the obtained distilled water suitable for medicinal purposes, such as the preparation of sterile solutions and injections. The apparatus comprises a demisting column I and a steam condenser III, the demisting column being in the shape of a vertical or inclined tube 10 of a non-corrosive material which is packed with noncorrosive bodies 16, such as beads, rings or short tubes. Raw steam enters the column near its bottom, rises to the top and leaves the column into the steam condenser, while separated water containing impurities leaves the column through an outlet at its bottom, which is controlled by a steam trap 15. The distilled water leaving the condenser is collected in suitable containers. <IMAGE>
Patent GB-2000637-A (GB)
Title: High pressure metal vapor discharge lamps
IPC: H01J61/88
Filed: 1978-07-04
Abstract: High pressure discharge lamps containing a fill of mercury and metal halides, having a power input of 250 watts or below and useable for general illuminating purposes achieve higher efficacy by developing high end temperatures without excessively obstructing the transmission of light and without creating excessive thermal losses through radiation and conduction. To reduce the obstruction of light, heat-conserving coatings on the lamp ends are preferably omitted and small neck seals are used which serve also to reduce thermal losses. The lamps are constructed with an aspect ratio of arc chamber length to diameter from 0.9 to 2.5 and with an electrode insertion factor from 0.1 to 0.6 and operate with a wall loading from 10 to 35 watts/cm<2> and with an arc loading from 60 to 150 watts/cm. <IMAGE>
Patent GB-2004273-A (GB)
Title: beta -Lactam compounds, preparation and use
IPC: C07D503/00
Filed: 1978-08-02
Abstract: Anti-fungal and  beta -lactamase inhibitory compounds have the formula (II):   <IMAGE> wherein X is S, SO or SO2; and R is (a) an alkyl group of up to 4 carbon atoms, (b) an alkyl group of up to 4 carbon atoms substituted by an OR<1>, NHR<1>, NH.CO.R<1> or CO2R<2> group wherein R<1> is a hydrogen atom, an alkyl group of up to 4 carbon atoms or benzyl group, and R<2> is a moiety such that CO2R<2> is a carboxyl, salted carboxyl or esterified carboxyl group, (c) an aryl group or (d) an aralkyl group. The compounds enhance the activity of penicillins and cephalosporins.
Patent GB-2031974-A (GB)
Title: Methods of determining well characteristics
IPC: E21B47/00
Filed: 1978-10-17
Abstract: A method of determining the volume of gas in a well below the wellhead includes measuring the gas flow rate in the well annulus, closing the wellhead and measuring the change in pressure with time, and calculating the volume from the recorded data. A further method includes determining the change of pressure with the wellhead closed, venting the well through a calibrated orifice and measuring pressure changes with time for a short interval of time, and calculating from the recorded data the flow rate through the orifice, the annular gas volume and the annular gas rate. Pump rates and fluid rates can also be determined. A reverse technique using injection is also disclosed.
Patent GB-2008690-A (GB)
Title: Mechanical Seal Assembly
IPC: F16J15/40
Filed: 1978-11-08
Abstract: In a balanced mechanical seal between two zones having different fluids, at least one of which may be corrosive, abrasive, of different lubricity, of elevated temperature and with other undesirable properties or characteristics a buffer fluid is introduced into one zone (92) at a constant rate so as to flow to a location (68) radially inwardly of contacting seal faces (34, 70) and then radially outwardly between said faces. The flow cools and lubricates the seal faces and substantially prevents the radially inward fluid flow. The ratio of areas which determines the seal balance is such that in the direction of buffer fluid flow it is relatively low. However, in the opposite direction of fluid flow, the balance is much higher. Thus in the event of buffer fluid failure, flow of the undesirable fluid across the seal faces is substantially prevented, thus preserving the faces from substantial damage from that undesirable fluid. <IMAGE>
Patent GB-2012688-A (GB)
Title: Tyre and wheel assemblies
IPC: B60B21/12
Filed: 1979-01-12
Abstract: A wheel rim having a tyre fitting well, and, adjacent a bead seat 2, a circumferentially extending groove 4 intended to receive the extended toe of a bead of a tyre specifically designed for the rim, is provided with groove filling means 10 so that when a standard tyre, having a bead 8 without such toe, is fitted to the wheel rim and used on a vehicle the bead 8 cannot enter the groove and allow loss of air pressure. The filling means 10 may be formed by a plurality of arcuate metal members connected end-to-end or by a ring of elastomeric material reinforced by a steel cable. If the rim has a groove 4 adjacent each seat 2 two groove filling rings connected by a rubber diaphragm may be provided. <IMAGE>
Patent GB-2013067-A (GB)
Title: Method of and apparatus for processing television signals
IPC: H04N7/01
Filed: 1979-01-16
Abstract: A method of and apparatus for enabling different parts of an input television signal to be made available simultaneously is used as a television standards converter. Successive lines of an input television signal are cyclically written into n (e.g. 4) successive random access store sections, using in each cycle the same addresses for the different sections. The write addresses are incremented for successive cycles. The sections are read from using for each section addresses which are related to each other and to the write addresses so as to access a desired set of up to n successive lines. These lines are combined by weighted addition to provide an interpolated output line. The read addresses are derived by counting the desired output lines during each field and multiplying the count by the line conversion ratio, (namely the number of lines in each input field divided by the number of lines in each output field). The integral part of the resultant controls the read addresses and the non-integral part controls the weighted addition. A total storage of two fields is used, each divided into n sections. Standards conversion to either higher or lower line rates is possible with improved quality.
Patent GB-2013998-A (GB)
Title: Improvements in or relating to electric power lines
IPC: H01B9/04
Filed: 1979-01-29
Abstract: A pylon 1 supports at a level above the ground at least one overhead electric power line 4. A coaxial shielded conductor 20 includes a central conductor core, an outer conducting sheath, and an insulating layer between the core and the sheath. The upper end of the core is electrically connected to a conducting member 2 adjacent the top of the pylon 1. Both the lower end of the core and the lower end of the sheath are grounded. The sheath extends from substantially the area of connection of the core to the conducting member 2 to a position below the power line 4, such that the lower end of the sheath is spaced below the power line 4 at least by a distance sufficient to exclude the formation of a discharge arc between the core and the power line upon a lightning discharge. <IMAGE>
Patent GB-2028714-A (GB)
Title: A method of making a stiffened moulded panel of polyurethane foam, and a panel made by the method
IPC: B29C51/08
Filed: 1979-07-02
Abstract: A sheet 1 of foamed polyurethane and stiffening sheets 2 are assembled with interposed bonding agent and the assembly heated for 1 to 2 minutes at 170 DEG  to 220 DEG C in an oven or between heating plates 3 and immediately placed between cooled press platens 4 and 5 and compressed to about 8 mm thickness. In the hot assembly the bonding agent liquifies to act as a lubricant during the compression, being an irreversible polyurethane elastomer which sets as it cools and continues to polymerise for up to 48 hours, the shape of the resulting stiffened moulded panel being permanent. The sheets 2 may be of Kraft or other paper, felt or woven fabric, glass-fibre mesh, or foil. <IMAGE>
Patent GB-2033949-A (GB)
Title: Side Sealing of Roof and Wall Claddings
IPC: E04C2/52
Filed: 1979-10-17
Abstract: A composite insulated panel 110 has inner and outer sheets (112, 116) and between them foam material which is formed in situ. At each edge of the panel is a sealing strip (122, 124). The sealing strips have channels which resiliently grip upturned edge flanges (114) of the inner sheet (112), the inner leg of the channel being longer than the outer. One sealing strip (122) has a resiliently flexible projecting flap which engages the adjacent sealing strip of an adjacent panel to effect a seal between the panels. Both strips (122, 124) have flaps which resiliently engage the outer sheet (116) during foaming to provide a seal preventing egress of the foaming material. <IMAGE>
Patent GB-2040834-A (GB)
Title: An auxiliary tent that can be fitted to the roof of vehicles
IPC: B60P3/38
Filed: 1980-01-24
Abstract: The invention relates to a tent, reducible like bellows, which can be fitted to the roof of any vehicle A and comprises a floor 1 provided with one or more apertures E placed in communication with corresponding apertures D provided in the roof of the vehicle on which the said tent is mounted, in such a way, therefore, that it be possible to gain access to the area created by the said tent directly from the inside of the vehicle; alternatively, the said tent is provided laterally with an aperture 6 in the region of the lateral aperture 7 in the motor vehicle A, from which is evolved a reducible volume compartment, closed on at least three sides, that extends vertically and is anchored at the bottom to the motor vehicle, this allowing one to pass into the tent area from the outside of the vehicle without being seen. <IMAGE>
Patent GB-2040221-A (GB)
Title: A pruning saw for trimming standing trees
IPC: B27B21/04
Filed: 1980-01-24
Abstract: A handle has a first member (1) and a second, telescopic extension member (3). A saw blade (2) is affixed to the top of the member (1) and provided with saw teeth. A feed device (5) is connected by a pivot (6) to the top of the telescopic extension member (3) in the opposite side of the saw blade to where the saw teeth are provided. The feed means has a hook-shaped part (7) terminating at a location on the same side of the saw blade (2) as the saw teeth. In use, a branch (13) to be sawn is engaged by the hook-shaped part (7) at a location above the pivot (6) and the branch (13) is urged into contact with the saw teeth by the exertion of a downward force on the handle. The downward force determines the cutting force exerted on the branch (13). <IMAGE>
Patent GB-2041209-A (GB)
Title: Sweetening compositions containing peptide sweeteners and a method for their manufacture
IPC: A23L27/30
Filed: 1980-01-25
Abstract: A heat-stable sweetening composition containing a peptide sweetener such as thaumatin is obtained by mixing the sweetener with gelatin at a weight ratio of gelatin to sweetener of less than 100:1. Solid forms can be prepared by drying a co-solution of the sweetener and gelatin in water, preferably containing an edible acid.
Patent GB-2069246-A (GB)
Title: A tool for cutting a taper on an electric cable insulation
IPC: H02G1/12
Filed: 1980-02-11
Abstract: A tool for cutting a taper in the insulating layer 12 of an electric cable comprises a clamp 16, for clamping securely about a bared portion of the cable conductor 10 and an assembly journalled about the clamp 16 and carrying a cutting blade 30. Manual rotation of said assembly about the clamp 16 drives the cutting blade to effect a helical cut in the insulating layer 12 to cut the required taper. Because the cutting blade is guided relative to the conductor 10, and the conductor is reliably circular, then a reliably concentric taper will be cut. <IMAGE>
Patent GB-2054095-A (GB)
Title: Piston seals
IPC: F16J15/48
Filed: 1980-06-11
Abstract: In a piston-in-cylinder type pump incorporating a radial sealing arrangement, wear on the seal is mitigated by the contact pressure with which the seal is thrust against the cylinder wall being adjusted automatically according to the degree of suction in the working chamber of the pin/lip. In one embodiment the piston (3) has a groove (4) and an elastically resilient tube (5) covers the said groove to form an annular chamber and is associated with a seal-ring (7) fixed thereto, the piston being provided with ports (6) in an end portion thereof for admitting atmospheric pressure to within the annular chamber. In another embodiment the annular chamber is formed by a resilient stepped tube, the end nearer the working chamber being fixed to the piston and the other end having an outwardly stepped portion resting freely against the peripheral surface of the piston and forming the seal. <IMAGE>