baber/WOPTO huggingface dataset:
Patent GB-858699-A (GB)
Title: Improvements in or relating to mastics
IPC: C08K3/34
Filed: 1958-11-19
Abstract: A permanently thermoplastic matrix comprising at least 20% of unexfoliated vermiculite distributed throughout at least 20% of a binder which includes an isobutylene polymer or copolymer, a plasticizer and a resinous fire retardant has a solvent of one or more of mineral spirits, xylol and methyl isobutyl ketone added for spray application.  Fillers may also be present (see Group V). The preferred polymers are a linear isobutylene polymer or a copolymer of isobutylene with either styrene or isoprene, whilst the preferred five retardants are either chlorinated paraffin wax in a mixture of chlorinated biphenyl and polyphenyls. Specification 835,801 is referred to.ALSO:A permanently thermoplastic matrix comprises at least 20% of unexfoliated vermiculite distributed throughout at least 20% of a binder which includes an isobutylene polymer or copolymer, a plasticizer and a resinous fire retardant chlorinated compound, the plasticizer being an asphaltine-free condensation product obtained by air oxidising a precipated fraction of a natural paraffinic crude oil distillation residue, having an iodine number below 40, a ball and ring softening point above 110 DEG F and up to 200 DEG F., and average molecular weight of at least 1900, at least 40 carbon atoms per double bond, a marked reduction in susceptability to penetration with temperature change between 30 DEG F. and 60 DEG F. and complete solubility in 88 DEG  Baunce naptha. 10-50% of a mineral filler may be present and may include a gelling agent e.g. an organic derivative of a hydrous aluminium silicate.  The filler may be fibrous, e.g. asbestos and asbestine or non fibrous, e.g. mica, talc and antimony oxide.  The preferred polymers are a linear isobutylene polymer or a polymer of isobutylene with either styrene or isoprene; the preferred fire retardants are either chlorinated paraffin wax or a mixture of chlorinated biphenyl and polyphenyls.  Specification 835,801 is referred to.
Patent GB-1489823-A (GB)
Title: Settling tanks
IPC: B01D21/06
Filed: 1976-06-11
Abstract: 1489823 Settling tank SIMON-HARTLEY Ltd 11 June 1976 [11 Sept 1975] 37345/75 Heading B1D A circular settling tank has a radial rotating bridge 13 from which depend scrapers 16 which gather sludge from the tank floor into zones 18, from which inverted U-pipes 17 remove it by siphonic action into central chamber 19, the discharge ends of pipes 17 being closed by cups 20 but having side openings 21 within the cups, the effective areas of openings 21 and hence their respective sludge flow rates being adjustable by moving sleeves 22 vertically to cover the openings. Sleeves 22 enclose the discharge ends of pipes 17 and have upwardly extending handles 23 whereby a workman on bridge 13 may move the sleeves and lock them in various positions by engaging notched plates (25) on the handles with pegs 24 on the bridge (Fig. 4 not shown).
Patent GB-1499387-A (GB)
Title: Process for purifying aqueous industrial effluents
IPC: B01J20/12
Filed: 1975-09-12
Abstract: 1499387 Adsorption of impurities from effluent CIBA-GEIGY AG 12 Sept 1975 [13 Sept 1974] 37616/75 Heading ClC [Also in Division C3] A process for purifying an aqueous industrial effluent comprises bringing said effluent into contact with an adsorption material comprising a carrier that has been pretreated with a basic nitrogenous polymeric compound which has been precipitated with an activated clay material (clay complex). The effluents may be waste liquors from the textile, paper or leather industry or from the manufacture of dyes or fluorescent brighteners, and may contain organic ionic substances such as anionic or cationic dyes, fluorescent brighteners, textile or dyeing assistants, surfactants, tannins or mixtures of such ionic substances. Examples of nitrogenous compounds are polyamides, polyamide polyamines, basic aminoplasts, epoxidized aliphatic polyamines and polyalkylene imines of MW 500 to 200,000.
Patent GB-1333860-A (GB)
Title: Hydraulic-pneumatic weight control and compensating apparatus
IPC: E21B19/09
Filed: 1971-08-11
Abstract: 1333860 Taking up slack in flexible elements VETCO OFFSHORE INDUSTRIES Inc 11 Aug 1971 [4 Sept 1970] 37618/71 Heading B8B [Also in Divisions E1 and F1] Means for maintaining constant stress in a pipe or cable comprising: cylinder means having piston means, one of the means being connectible to the pipe or cable; and means for maintaining liquid under pressure on one side of the piston means, the means for maintaining the liquid under pressure comprising gas exerting pressure on the liquid. Fig. 3 shows the invention applied to sub-aqueous drilling to maintain constant stress in a drill string (not shown) supported by a floating vessel. The pistons 14 are connected to a member 10 carrying the hook (not shown), the cylinders 13 are connected to a member 11 supported by the travelling block E, and accumulators 17 supply the liquid to the undersides of the pistons. The parts 21, 22 of the accumulators are filled with the liquid and the gas (nitrogen), respectively, pistons 24 being interposed between the liquid and gas. Gas from storage cylinders 29 is supplied through a pressure regulator 34 to the parts 22. Liquid from a tank 38a is supplied to the parts 21 by a pump 40, the supply being controlled by a differential pressure switch 48 actuating a valve 49 and subjected to the pressures of the gas and liquid. Should the liquid pressure drop below that of the gas in the parts 22 due to the pistons 24 contacting the bottoms of the accumulators, the switch 48 closes and liquid is pumped to the parts 21. If the liquid pressure is greater than that of the gas in the accumulators, the excess pressure is reduced by a differential valve 80. Should the liquid pressure become excessive due to the pistons 24 contacting the tops of the accumulators, the valve 80 opens to reduce the liquid pressure. The cylinders 13 above the piston 14 are filled with nitrogen from a cylinder 62, a pressure gauge 68 giving an indication of the position of the piston 14. Fig. 4 shows the invention applied to crane used for loading a barge, a load supported by the hook 103 having a reduced impact action on the barge when floating in heavy seas. A line 105 running between the travelling block 104 and the drawworks 112 passes round a pulley 108 on the rod 109 of the piston 110 working in the cylinder 111 which is fixed to the frame of the crane, and liquid in the cylinder below the piston is maintained at a substantially constant pressure by means of a system similar to that of Fig. 3.
Patent GB-520617-A (GB)
Title: Improvements in or relating to nesting furniture
IPC: A47B31/00
Filed: 1938-12-28
Abstract: 520,617. Nesting furniture; trollies. ATTEWELL, H. G. Dec. 28, 1938, No. 37650. [Classes 52 (i), 52 (ii) and 52 iii)] Also in Group XXXII] In nesting furniture comprising units which can be assembled one above the other in any order the legs consist each of an upper part 3 fixed to a lower part 4 of substantial length, which lower part is arranged to lie inside the upper part of a leg of a similar unit. The assembly comprises two identical tables 1, 2 with legs each comprising an upper tubular part 3 from which projects a rod 4. The upper ends of the tubes 3 are open so that they can ,receive the rods 4, and are welded to angle pieces 5 screwed to the table top, the tubes projecting slightly above the angle pieces so that spilt liquid does not run into the tubes. The rods 4 of the lower table 2 fit into tubular legs 8 of a table 7 which legs fit on studs 10' at the corners of a trolley 9 having castors 13. The table 7 has hinged flaps 11, 12 adapted to form an easel. The table tops may be replaced by showcases or may be inclined and have sides to retain the goods. The units may comprise bed tables for use in a hospital ward.
Patent GB-1190749-A (GB)
Title: Improvements in Pneumatic Gauging
Inventor: CATLING EDWARD
IPC: G01B13/00
Filed: 1966-08-23
Abstract: 1,190,749. Pneumatic gauges. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 18, 1967 [Aug 23, 1966], No. 37853/66. Heading G1M. A pneumatic gauge comprises a body 11 having a recess 12 in which is displaceable a choke 14 having a profiled portion consisting of a conical portion 17 and cylindrical portion 18 provided with vent holes 19 for gas flow out of channel 27, the portion 18 terminating in a boss 20 which is a slidable tight fit in recess 12. The choke 14 has a shoulder 21 radiussed to fit the entry 24 of the recess 12, and is movable between limits defined by arrows 25, 26. In use, e.g. for determining the growth of metallic specimens, the choke 14 is attached to the specimen and a constant pressure helium supply arranged so as to pass helium via an orifice, along the channel 27 and out of vent holes 19, the initial pressure in channel 27 with the vent holes aligned with arrow 25, being determined on a nanometer. As growth occurs, the choke 14 is displaced thus altering the size of the gap between the choke and the recess 12 and consequently changing the pressure. Thus the pressure difference indicates the growth of the specimen. In a second embodiment, the gas is supplied at a constant volume rate to channel 27 and no orifice is used.
Patent GB-343231-A (GB)
Title: Improved method of heat exchange between viscous liquids
IPC: F28F9/22
Filed: 1929-12-10
Abstract: <PICT:0343231/III/1> In process for cracking oil, heat exchange between the crude cracking stock and the hot reaction products is effected by means of two or more heat exchange units through which a heat carrier liquid flows in succession in turbulent motion.  The heat exchange units A, B consist of tubes 4 through which the heat carrier liquid is forced in a closed cycle by pump 3.  The oil in exchanger A is caused to flow in a sinuous course from inlet 5 to outlet 8 by baffles 6, 7, similar baffles being provided in exchanger B.
Patent GB-503474-A (GB)
Title: Electric kitchen stove or oven
IPC: F24C7/08
Filed: 1937-10-08
Abstract: 503,474. Control systems for heating resistances. CHALLET, E. Oct. 8, 1937, No. 38005 /38. Divided out of 493,379. [Class 38 (iv)] [Also in Group XI] Switching control.-An electric stove F is provided with heating resistances 1, 2, above and below, of equal power, and each comprising two sections. Switches 4, 5, are provided as described in Specification 475,470, [Group XXXVII], so that when one of the resistances is in full operation the other cannot be switched on thereby avoiding overheating. A further resistance 3, preferably of the same rating as 1 or 2 is provided for grilling, and may be used separately or when the lower element is in full operation.
Patent GB-982763-A (GB)
Title: Improvements applied to means for continuously sorting radioactive elements
Inventor: LAFORET ANDRE
IPC: B07C5/34
Filed: 1961-10-24
Abstract: 982, 763. Sorting according to radio-activity. COMMISSARIAT A L'ENERGIE ATOMIQUE. Oct. 24, 1961 [Oct. 24, 1960], No. 38119/61. Heading G1A. An arrangement for continuously sorting separate lumps of radio-active material e.g. radio-active ore C which are carried at constant speed and at substantially constant intervals on a conveyer belt 1, has a radio-activity detector 3 located facing the belt detecting radio-activity in a zone 4 by emitting pulses the number of which per unit of time is an increasing function of the radio-activity detected from a lump C passing through the zone 4. The pulses are integrated in a threshold integrator (ratemeter) 8 and when the integrated number exceeds a predetermined value, a blocking signal is fed to a memory 9 preventing it from receiving further signals from the integrator 8 thus avoiding any repetition likely to cause errors in sorting. After a lump C has passed through the zone 4 it passes a photo-electric cell 5 which then transmits a pulse through a line 14 to the memory 9 unblocking it to further signals from the integrator 8 and allowing the stored information to be transmitted to an amplifier 10 the amplified information being fed to a delay unit or second memory 11 which controls an electromagnetic valve 7a which operates an ejector 6 at the moment when a lump of predetermined radio-activity passes, after a period of time equal to D/V where D is the distance between the ejector 6 and the photo-electric cell 5, and V is the velocity of the belt. The detector, which is protected from parasitic radiations by a shield 18 of lead bricks, may be formed from a scintillation detector of a sodium iodide crystal actuated by thallium and a photomultiplication tube. The memory 9 may consist of an annular magnetic core arrangement with a rectangular hysteresis loop and the delay device 11 may consist for example of a univibrator or a blocking oscillator. Where means are provided to vary the speed of the belt or the distance between the photoelectric cell and the ejector it is also necessary to provide means for varying the delay caused by the delay unit 11.
Patent GB-954226-A (GB)
Title: Improvements in or relating to security arrangements for electrical systems
Inventor: HARRIS LIONEL ROY FRANK
IPC: H04M3/12
Filed: 1960-11-07
Abstract: 954,226. Automatic exchange systems. H.M. POSTMASTER GENERAL, STANDARD TELEPHONES & CABLES Ltd., GENERAL ELECTRIC CO. Ltd., AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd., ASSOCIATED ELECTRICAL INDUSTRIES Ltd., and ERICSSON TELEPHONES Ltd. Nov. 1, 1961 [Nov. 7, 1960], No. 38169/60. Heading H4K. [Also in Division G4] In a system for automatically detecting and replacing faulty functional units during a test period in which the units are idle, a continuous switching programme is carried out in which during first successive intervals ES1, ES2, ES3, Fig. 3, operational units E1, E2, E3 are replaced in turn by a spare unit ES, and in the following interval ES4, the spare unit is removed from channels IP1, OP1; IP2, OP2 and IP3, OP3, a test routine being applied by routiner RT. The switching is effected by means of gates EG1- EG3, ISG1-ISG3 and OSG1-OSG3. During each interval ES1-ES3 the units E1-E3 are connected in turn at instants t 1 , t 2 , t 3  with a checking circuit CHC through gates CG1-CG3, circuit CHC giving an output A if a fault is detected. Output A is used to stop the switching programme and cut out the faulty unit. Interval pulses ES1-ES3 are obtained from a counter CC1-CC4, Fig. 4, which is stepped on by pulses T. The arrangement of gates is such that on the occurrence of output A, pulses T are blocked at G1 and the counter is reset to the condition in which the trigger CC1-CC4 corresponding to the faulty unit is set. In another embodiment, Figs. 1, 2 (not shown) each unit E1-E3, ES has an individual checking circuit. Unit ES has an additional connection from IP1 through a gate which is opened at ES4 and its output, besides being connected to OP1-OP3 and its checking circuit through gates OSG1- OSG3, is also connected through a gate opened at ES4 to its checking circuit. In this way ES is continually tested by its checking circuit even during the intervals ES4 in which it is not conected in channels IP1, OP1-IP3, OP3.
Patent GB-342081-A (GB)
Title: Improvements relating to pit cages, lifts and the like
IPC: B66B7/10
Filed: 1929-12-14
Abstract: 342,081. Lifts &c. JONES, C. O., 31, Pen-y-Bryn, and EVANS, G., 37, Brook Street, both in Wrexham, Denbighshire. Dec. 14, 1929, No. 38342. [Classes 78 (iii) and 78 (v).] Safety retaining mechanism ; emergency power cutoff gear.-If the winding rope breaks, an auxiliary cable passing over an auxiliary pulley is braked and the winding engine stopped by means of an eccentric which actuates an air compressor or pump supplying fluid under pressure to a reservoir which actuates the brake and stop-gear. The auxiliary cable, not shown, passes over a pulley 10 mounted on springs 15, the pulley spindle 11 carrying an eccentric 13 engaging a roller 17 on the end of a piston rod 18, the piston 19 working in a cylinder 12. During normal working compressed air from the cylinder passes into a reservoir 24 and when the winding rope breaks the load comes on to the auxiliary pulley and depresses the springs 15. One spring engages a lever 25 to open a valve controlled by the lever and allows pressure fluid to pass from the reservoir to the cylinder 12 to depress the piston and apply a brake 33 to the auxiliary pulley. The brake is mounted on a support 31 on the end of the piston rod working in guides 22. The spring also operates a second lever to open a valve to allow pressure fluid to actuate the engine stop mechanism.
Patent GB-1282505-A (GB)
Title: Beneficiation process for iron-containing titaniferous materials
Inventor: WILLIAMS FRANK RONALD
IPC: C22B34/12
Filed: 1969-07-31
Abstract: 1282505 Removing iron from titaniferous material BRITISH TITAN Ltd 22 July 1970 [31 July 1969] 38477/68 Headings C1A and C1N Fe is removed from a particulate titaniferous material by heating at 700-900C. to oxidize the Fe to Fe<SP>3+</SP>, contacting with a reducing agent at 600-1100 C. to reduce the Fe to Fe<SP>2+</SP>, leaching with aqueous HCl to form FeCl 2  solution, and calcining the solid -at 800-1000 C. The initial material may be ilmenite or leucoxene, e.g. beach sand, with a particle size of 50-300 Á. The heating steps may be carried out in a fluidized bed or rotary kiln. Reduction may be effected using H 2   steam or a hydrocarbon containing 1-4 carbon atoms (as desrcibed in Specifications 1,282,503 and 1,282,324 resp.) or CO or-carbon. The HCl may have a concentration of 18-22% and a temperature of from 80 C. to b.pt. The solid may be agitated with a gas, e.g. N 2 , during leaching, or the acid may be recirculated upwardly through a column of the solid. A 2- stage leaching process may be used, as described in Specification 1,282,506. The calcination is carried out as described in Specification 1,282,507. The FeCl 2  may be converted into Fe oxide or Fe and the HCl recovered. The solid product may be mixed with coke and reacted with Cl 2  to give TiCl 4 .
Patent GB-1063695-A (GB)
Title: Improvements in and relating to fluid sterilizing apparatus
Inventor: POTAPENKO GENNADY
IPC: A61L2/10
Filed: 1963-10-01
Abstract: 1,063,695. Irradiation apparatus. UNION CARBIDE CORPORATION. Oct. 1, 1963, No. 38524/63. Heading H5R. Apparatus for providing a flow of substantially sterile fluid comprises a source 24 of germicidal radiation, e.g. an ultra-violet source, and a baffle structure 22 disposed around and spaced from the radiation source, the arrangement being such that in the space adjacent the source 24 the fluid flows in a substantially unimpeded non-turbulent fashion, whilst the fluid flows in a turbulent fashion adjacent the baffle. As shown, the baffle is of helical form, and the apparatus may be mounted within an air-conditioning system. The surfaces of the baffle are polished so as to reflect the ultraviolet light. The transit-time of the fluid in the baffle is longer than that close to the source, thus compensating for the drop in intensity of the germicidal radiation.
Patent GB-1271966-A (GB)
Title: Heat treating apparatus
Inventor: LAWLER JAMES RICHARD
IPC: C21D9/00
Filed: 1969-08-01
Abstract: 1,271,966. Bending profile sections. J. R. LAWLER. 1 May, 1970 [1 Aug., 1969], No. 38614/69. Heading B3E. [Also in Divisions F3-F4] In continuous heating apparatus of the forced convection type (see Divisions F3-F4) in which metal strip e.g. titanium is'heated and formed into shapes e.g. C's, Z's or U's, a main oven 12 has pairs of rollers 84a-84i by which the strip is shaped. A strip guide 80 receives the metal strip and guide members are disposed between the rollers. The latter are driven by chain and sprocket gearing from a single electric motor and the upper rollers have height adjusting screws (88, Fig. 6). Thermocouples 1-8 indicate the temperature of the strip near the different rollers.
Patent GB-919780-A (GB)
Title: Improvements in or relating to the control of oil pollution
Inventor: GOLDSBROUGH LESLIE NEWTON
IPC: C02F1/68
Filed: 1960-11-10
Abstract: Oil floating on the surface of water is absorbed and sunk by contacting with a solid particulate free-carbon-containing absorbent such as coal dust, fly ash or a spent catalyst which has been used in a relatively high temperature hydrocarbon oil conversion process. Before or after adding to the oil the absorbent may be mixed with a surface-active agent.
Patent GB-1010718-A (GB)
Title: Fluid control valves, particularly for motor vehicle interior space heating
IPC: B60H1/00
Filed: 1964-09-23
Abstract: 1,010,718. Valves. MECANO-BUNDY G.m.b.H. Sept. 23, 1964 [Sept. 25, 1963], No. 38712/64. Heading F2V. A valve closure member, particularly for interior space heating in motor vehicles, operated by a stem 3, comprises a disc 2a surrounded by a ring 5 of synthetic material, a skirting 2b with a slit 2e, and three fingers 2c extending from the skirt portions. The length of the skirting 2b is partially constant and partially of increasing length. The closure member is held on the stem 3 between two plates 6 and 7 held against an end 3c, flared by drilling or punching, and a pinched bead 3b respectively. In the closed position, the ring 5 seals against portion 1d whilst the skirting and fingers are within the outlet 1b. Since the slit 2e is coterminous with the bevelled edge of the ring 5, the slit 2e commences to open the passage, gradually at first, immediately opening of the valve commences until the end 2d of the closure member clears the portion 1c. The fingers 2e remain inside the portion 1c when the valve is fully open. A lever 4 operates the valve, the end of the stem being bent at right angles at 3a to slot into the lever, whilst the lever may itself be operated by another lever or by a cable.
Patent GB-1383286-A (GB)
Title: Digital transversal filter
IPC: H03H15/00
Filed: 1973-08-16
Abstract: 1383286 Active filters INTERNATIONAL BUSINESS MACHINE CORP 16 Aug 1973 [23 Aug 1972] 38796/73 Heading H3U A digital filter comprises: a delay 2 of period (2K + 2)T, where K is a positive integer and T is the sampling period, the delay having a tap at an intermediate point defining a delay of (K+1)T; means 4 for summing the input to the delay, the output from the delay and the output from the tap weighted by a factor 2(- 1)<SP>k</SP> in weighting circuit 3; means 5, 6 for providing the difference between the output from summing means 4 and the difference provided an interval T earlier; and means 7, 8 for providing the difference between the output from means 5, 6 and this second difference an interval T earlier. The two signals corresponding to the earlier intervals are derived by delays 6, 8 of T. The output signal, g n+2 , is thus formed as the difference between a signal b n+  2  fed to the positive input of adder 7, and the signal g n+1  fed to the negative input of adder 7 from the delay 8, that is The quantity b n+2  is similarly derived by delay 6 and adder 5 as  where the output from adder 4 is given by the expression S being a sample of the input signal at the time denoted by the subscript.