baber/WOPTO huggingface dataset:
Patent GB-1421027-A (GB)
Title: Doppler scanning guidance system receiver
IPC: G01S1/40
Filed: 1973-04-16
Abstract: 1421027 Doppler beacon system INTERNATIONAL STANDARD ELECTRIC CORP 16 April 1973 [28 April 1972] 18217/73 HeadingH4D In a Doppler beacon system in which a reference signal f is continuously transmitted by one (end) aerial element of a linear array of N elements, Fig. 1 (not shown), and a signal f+fo (fo<f) is transmitted sequentially from the N elements at an element switching frequency fr=NF whence F is the aerial scan frequency, the frequency spectrum of the beat signal between f and (f+fo) as derived in a (mobile) receiver displaced at an angle # from the perpendicular bisector of the array is as shown in Fig. 3, for three different values of # corresponding to respective Doppler shifts fd = 4F, fd = 4À33F and fd = 4À66F from which it is seen that the frequencies of the actual line components of the spectra are independent of # but that the peak of the spectrum envelope corresponds to the (hypothetical) centre frequency (fo+fd) of the spectrum and according to the present invention fd (and hence #) is derived from the values X1 and X2 of the Fourier transform of said beat signal (or a signal derived therefrom) corresponding to the adjacent line frequencies fo+KF and fo + (K+1)F on either side of (i.e. " enframing ") said envelope peak. As shown in Fig. 6, the beat signal of centre frequency fo+fd (see Fig. 3) is translated by a mixer 15 to a centre frequency fr+fd and then sampled sequentially at discrete times t i  by a unit 17, the resultant samples being digitized by a unit 18 to give corresponding signals U(t i ). The numerical value of the factor K is determined by a zero crossing counter 30 responsive to the beat signal of centre frequency fo+fd or to the translated beat signal of centre frequency fr+fd and a digital computer 25 (details Fig. 7, not shown) computes sequential values of the coefficients sin 2#(fr+KF)t i  and sin 2#(fr+(K+1)F)t i  which are multiplied respectively at 19 and 20 with the corresponding samples U(t i ) and then summed in respective adders and registers 21, 22 and 23, 24 to give corresponding outputs X1 and X2 which are combined to give a signal representing (i) the actual direction # of the receiver or (ii) the angular deviation ## of the receiver from a predetermined value of #, e.g. when used as a glide slope beacon in which case the aerial array is vertical as shown in Fig. 1, and # is the elevation angle; alternatively ## can be derived from the normalized quantities and Fig. 9 (not shown). In a modification, Fig. 8 (not shown), the centre frequency of the beat signal is translated to fd in two quadrature channels from which the real and imaginary parts R1 and T1 are derived, said parts being then combined in accordance with the equation X1 = (R1<SP>2</SP> + T1<SP>2</SP>)¢; the quantity X2 is derived in a corresponding manner.
Patent GB-837804-A (GB)
Title: Method and apparatus for production of carbon black
IPC: C09C1/50
Filed: 1956-06-13
Abstract: A viscous make hydrocarbon oil is discharged from a tanker 11 through a line 10 and further apparatus to a plurality of carbon black furnaces (not shown), thereby displacing a light hydrocarbon oil in line 10 into a tank 20.  On complete discharge of the viscous oil, viscous oil remaining in line 10 is displaced by cold light oil from a tank 13.  The line is then ready for the <PICT:0837804/III/1> discharge of a further load of viscous oil, optionally after displacing the cold light oil in line 10 into tank 13 by hot light oil, e.g. at a temperature of 100-150 DEG  F., from tank 20.  The viscous oil thereby entrains 0.2-5%, usually 0.5-1.3% of light oil. The viscous oil has a Saybolt Furol Viscosity within the range of between 170-250 at 122 DEG  F. and 1500 at 210 DEG  F. and may be an aromatic petroleum residue having a viscosity at 130 DEG  F. of 1313 S.U.S. and a pour point of 55 DEG  F.  It may be introduced into line 10 at a temperature of 120-250 DEG  F., a pressure of 70-140 p.s.i.g., preferably 100-120 p.s.i.g., and a rate of 2500-3000 barrels/hr.  The light oil has an API gravity of 20-45, preferably 20-26, a flash point of at least 100 DEG  F., preferably 175-240 DEG F., and maybe a gas, cycle, kerosene, or gasoline oil. Line 10 has a diameter of at least 2 inches and a length of 1500-60,000 feet. Water may be evaporated from the viscous oil in a flash tower before passage to the carbon black furnaces.
Patent GB-453969-A (GB)
Title: Improvements relating to spring balanced loft ladders
IPC: E04F11/04
Filed: 1935-06-26
Abstract: 453,969. Loft - ladders. LOFT LADDERS, Ltd., Broadway Works, Bromley, and GORHAM, P. H., 25, Degema Road, Chislehurst, both in Kent. June 26, 1935, No. 18272. Addition to 392,940. [Class 20 (ii)] A loft-ladder according to the parent Specification is now provided with reduction gearing between the counterbalancing spring and the chain or the like connected to the ladder so that a comparatively short spring may be employed. In the construction shown, the chain 4, connected at one end to the plunger 3 arranged behind the spring 1, is passed around a pulley 5 and attached to the block 6 of another pulley 7. The cord 8 which is connected to the ladder is entrained round the pulley 7 and anchored to a fixed point 9. This arrangement provides a direct 2 to 1 reduction gear ; other ratios may be obtained by increasing the number of pulleys. In a modification the chain 4 and cord 8 are attached to and entrained around different sized pulleys attached to a common shaft. The spring and reduction gear may alternatively be carried by the ladder the appropriate chain or cord being attached to some stationary point. Specification 453,968 also is referred to.
Patent GB-750571-A (GB)
Title: A method for the manufacture of gears or blanks for gears
IPC: B29C70/20
Filed: 1954-06-22
Abstract: 750,571. Toothed gears. LICENTIA PATENT-VERWALTUNGS'-GES. June 22, 1954 [June 24, 1953], No. 18299/54. Class 80(1) A method . of making a gear or gear blank consisting of artificial resin with a fabric insert comprises building - up the disc shaped portion carrying the rim 3 by a continuous loose wmding and simultaneous shuttling of threads or strings 2 on the hub 1. The insert thus obtained together with the rim 3 is united by the binding agent under heat and pressure.
Patent GB-785488-A (GB)
Title: Improvements in or relating to electric motor pump units
IPC: F04D29/58
Filed: 1955-06-24
Abstract: 785,488. Centrifugal pumps. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 24, 1955 [July 1, 1954], No. 18302/55. Class 110 (1). [Also in Group XXXV] In a pump motor, the pumped fluid has access to the rotor space and additional coolant is circulated through the stator core and windings which are in an otherwise sealed compartment. As shown, inlet and outlet apertures 134, 136 provide for the flow of external coolant, e.g. oil, through the stator chamber which is enclosed by main casing 2, end rings 4, 6 and the air gap partition 18, the coolant traversing axial ducts 140, 142 near the stator core peripheries. The rotor has a squirrel-cage winding enclosed by a sheath 40 and is cooled by pumped liquid which seeps through the labyrinth seal 106, the rotor having auxiliary impeller blades for circulating liquid through channels 124, 125 in the lefthand bearing 48. A flanged guide member 146 is provided in the stator compartment to bring the stator coolant into heat-exchange relationship with the liquid in channels 125. The rotor compartment is closed by cover 56 which has normally closed outlets 128, 130 which can be used as vents for trapped air and to drain off the liquid. Seals 90, 98 prevent direct flow between the inlet and discharge sides of the impeller and these consist of a series of thin washers 92, Fig. 3, iriterspaced between heavy rings 94 of inner diameter substantially larger than the inner diameter of washers 92 which is slightly larger than the diameter of the adjacent impeller part. To reduce thrust effects holes 88 are provided in the impeller 72 and the walls 164, 166 of the pump chamber are given an irregular surface by shot blasting, knurling or as shown in Fig. 3 by the addition of slightly overlapping parallel welding beads 162. To inhibit the flow of heat from pump to motor when a hot liquid is being pumped, intervening members 100, 102 provide an area 104 containing dead air or an insulating material such as glass wool.
Patent GB-1305436-A (GB)
IPC: H01C10/06
Filed: 1970-04-16
Abstract: 1305436 Variable resistors VISHAY INTERTECHNOLOGY Inc 16 April 1970 [14 July 1969] 18329/70 Heading HIS The resistive element for an adjustable resistor comprises a substrate 17, an isolating (epoxy or polyimide) layer 19, adherent on the substrate and a metal resistive film 21, the conductive path being extended by slots, scribed or photo etched in the resistive film. A collector strip of metal 51 is provided and multiple contact tips 27, 29, 31, 33 are mounted on spring fingers formed on the contact member 35. The substrate may be glass, polyurethane plastics, metal &c. The resistive film may be a nickel chromium alloy and taps may be provided. A further isolating layer may be provided on the reverse side of the substrate and a second resistive element formed thereon. Essentially zero temperature coefficient of resistance is obtained by proper choice of thermal expansion coefficient and thickness of isolating layer, film, and substrate. The etched patterns may be in the form of linear or arcuate gaps and the substrate may be linear, circular or cylindrical. The slots may be tapered and the value of the resistor may be trimmed by rubbing with abrasive or etchant. The ends of the resistive film may be embedded in epoxy resin.
Patent GB-187287-A (GB)
Title: Improvements in outside containers or boxes of electrical storage batteries or accumulators
IPC: H01M50/103
Filed: 1921-07-06
Abstract: 187,287. Kohlmeyer, I. E. July 6, 1921. Corner joints; joints between box bottoms and bodies.-A box for holding electric batteries has detachable sides of wood or metal, such as monel metal, which are held together by corner pieces 12 having projections 13 to engage in grooves 10 in the sides as shown in plan in Fig. 7. The grooves 10 are inclined towards one another from the bottom to the top of the box, the members 12 being correspondingly tapered to draw the sides of the box together. The edges of the sides are turned inwards to provide flanges 11 which abut against one another. The sides, if of metal, are formed with horizontal and vertical ribs 5, 6 as shown in elevation in Fig. 1, the lower horizontal ribs 6 carrying the bottom 7 of the box which is made of wood. The bottom is cut away round its edge as at 8 to prevent contact between the sides of the box and the support on which it rests. A wood lining 9 may be provided. If the sides of the box are made of wocd the grooves in which the members 12 engage are lined with metal strips. The members 12 are formed with flanges at their upper ends to cover the joints. Fig. 5 shows a tool for removing the members 12. It consists of a standard 20 the lower portion 16 of which is adapted to rest on the top corner of the box. A lever 18 is pivoted to the standard 20 and carries a pivoted arm 21 having a hooked end 31 to engage in a hole in the member 12. The Provisional Specification describes a modified construction of wooden box in which a part made cf metal is shaped to form the groove 10 and flange 11 at each corner of the box.
Patent GB-313616-A (GB)
Title: Process for producing new effects on vegetable yarns and fabrics
IPC: D06M13/188
Filed: 1929-06-14
Abstract: 313,616. Heberlein & Co. Akt.-Ges. June 15, 1928, [Convention date]. Yarns and threads, treating with liquids.- Yarns, &c. composed of vegetable fibres, are improved as regards their softness, resistance to wetting, and immunity towards substantive dyestuffs, by treatment with aqueous or alcoholic alkali lye and with a halide of higher fatty acid in the presence of an indifferent solvent, so as to produce partial esterification of the material. Halides of caprylic, capric, lauric, palmitic, stearic and oleic acids, or mixtures of such halides, may be employed. In examples, cotton cloth is treated with caustic soda lye, is pressed, and is then treated with a solution in carbon tetrachloride of oleic acid chloride or of the mixed chlorides obtained from stearin and thionyl chloride; cotton yarn, after treatment with alcoholic caustic soda lye, is immersed in a solution of stearic acid chloride in chloroform. Specification 201,510, 283,181, and 284,298, [all in Class 2 (ii), Cellulose &c.], are referred to.
Patent GB-596085-A (GB)
Title: Improvements relating to building blocks
IPC: A63H33/08
Filed: 1945-07-18
Abstract: 596,085. Building blocks. THWAITES, J. July 18, 1945, No. 18386. [Class 87(i)] [Also in Group XV] A building block particularly for use as a toy comprises a hollow cylinder A closed at one end B and having two pro jections C which ar( spaced apart from one another on the end B equal distances from the centre of the block and formed with two convex sides or arcs of equal radius which intersect at their ends and have parallel chords, the outer edge of each of the convex projections C being concentric with the circumference of the block. Fig. 5 shows how the blocks may be fitted together in staggered form, the projections C keying into the hollow portion of the next block.
Patent GB-581634-A (GB)
Title: Improved means for securing or holding doors
IPC: E05C17/54
Filed: 1944-09-28
Abstract: 581,634. Door wedges. EMERY, P. T., EMERY, F., and TAYLOR, C. W. Sept. 28, 1944, No. 18533. [Class 44] A device for securing a door in a closed or open position comprises a wedge connected to an attachment part on the door, the arrangement permitting the wedge to be held in an out-of-use position or lowered to engage beneath the edge of the door. In the form shown, a link 3, of thick wire bent into a rectangular form, is pivoted to the wedge 1, of hard rubber, fibre, wood, or other material, and engages slots in the attachment member 6, which is of channel section, the width of the channel being approximately the same as that of the wedge. The wedge can be snapped into the channel past two projections 7 pressed up from the sides of the member 6 to hold the wedge out of use.
Patent GB-419891-A (GB)
Title: Improvements in or relating to oil lamps
IPC: F21V37/02
Filed: 1933-06-30
Abstract: 419,891. Oil heating-stoves. BUCKLAND, J., 98, Stamford Road, Audenshaw, near Manchester. June 30, 1933, No. 18578. [Class 126.] A combined lamp and stove comprises a relatively large oil container a provided with a gallery, burner, and chimney e, together with a sheet-metal chimney g which surrounds the chimney e and is detachably securable to the oil container for heating purposes, air-holes g<5>, g<6> being provided in the lower and upper parts of the chimney, together with a baffle plate g<4> over the upper end. In the form shown the chimney g is attached by a bayonet joint to the inside of a flange a on the oil container, and carries a flange g<2> at the upper edge. A burner having an endless wick and wick regulating means as described in Specification 401,886 may be employed.
Patent GB-1183715-A (GB)
Title: Preparation and Method of Feeding Copper Concentrates, in the Continuous Smelting and Converting Process.
Inventor: THEMELIS NICKOLAS JOHN
IPC: F27D19/00
Filed: 1966-04-28
Abstract: 1,183,715. Matte process for the production of copper. NORANDA MINES Ltd. April 14, 1967 [April 28, 1966], No.18647/66. Heading C7D. In a matte process for the production of Cu, the concentrates are fed into the furnace in the form of pellets so that a substantial portion of the surface area of the liquid bath is covered with a uniformly disposed thin layer of pellets so that masses of unsmelted material are not formed. The pellets may incorporate at least some of the flux (e. g. silica flux) required for smelting and any balance of flux is mixed with the pellets in the form of lumps. The pellets may be dried prior to feeding or may be fed wet. The pellets may preferably be fed from a variable speed slinger belt.
Patent GB-726036-A (GB)
Title: Transparency viewer
IPC: G02B21/00
Filed: 1953-07-06
Abstract: 726,036. Transparency viewer; microscopes and telescopes. BERIA, A. July 6, 1953 [July 8, 1952], No. 18710/53. Class 97 (1). A viewer for transparencies (such as of maps) comprises a microscope with eyepiece 1 and objective 2, a transparent tube 8 which slides over the end of the microscope within an outer tube 6, which outer tube has an opening 7 for the inlet of light, and means such as a mirror or prism 3 to deflect the light into the microscope. The transparency M is placed on the inner wall of the tube 8 and is viewed by light transmitted through the window 7. The opening 7 may be fitted with a converging lens if desired. By rotating the tube 8 and sliding it into or out of the tube 6, all parts of the transparency may be brought over the opening 7. The instrument may be converted into a telescope by replacing the end cap 9 by a lens, and swinging the mirror or prism 3 clear of the optical axis by means of a suitable mechanism. A compass may be fitted to the cap 9, or, where the instrument is convertible to a telescope, to the lens cover.
Patent GB-559292-A (GB)
Title: Improvements in or relating to sealable bottles and like containers composed of paper, wood-pulp or other like material
IPC: B65D5/06
Filed: 1942-10-11
Abstract: 559,292. Milk &c. cartons. WARE, H. M. Oct. 11, 1942, No. 18744/43. Divided out of 559,274. [Classes 18, 66, and 94 (ii)] The mouth of a paper or like carton of cylindrical or conical form for containing liquid such as milk, powder &c. is distorted to square or rectangular shape and is then scored or creased as shown in Fig. 1 so as to fold in the manner shown in Fig. 2, the upstanding lips 5, 6 being thereafter turned down to lie against the flattened end and the projecting triangular flaps then folded either downwardly against the side walls or inwardly to lie on the folded end portion. The lips 5, 6 may be sealed together by heat. adhesive, or by means of a metal clip, and the two layers forming the triangular flaps may also be sealed together. Specifications 281,174, [Class 94 (ii)], and 374,757. are referred to.
Patent GB-1496848-A (GB)
Title: Process for production of vinyl chloride polymers
IPC: C08F4/00
Filed: 1976-05-07
Abstract: 1496848 Removal of monomer from polyvinyl chloride SOLVAY ET CIE 7 May 1976 [26 May 1975] 18785/76 Heading C3P A process for preparing vinyl chloride polymers with reduced residual monomer content comprises polymerizing the monomer in aqueous suspension in the presence of at least one dialkyl peroxydicarbonate and then removing the unreacted vinyl chloride monomer by degassing wherein the polymer suspension is treated with a monobasic hydroxide when the end of the polymerization has been reached but before the completion of degassing. The preferred hydroxides are those of ammonium, lithium, potassium and sodium which are added in such amount that the pH is from 7-12, preferably 9-10À5. The stripping may be effected using a fluid, e.g. steam.
Patent GB-763856-A (GB)
Title: Improvements in and relating to pipe- and tube-connectors and the like
IPC: F16L3/24
Filed: 1954-06-28
Abstract: 763,856. Clamps. DREYFUSS, I., and DREYFUSS, G. June 28, 1954 [July 9, 1953], No. 18845/54. Class 44. [Also in Group X] A connector for tubes or the like comprises a base with an inturned flange 20, two clamping elements 22, 23 seated on the base and having feet 24 adapted to engage beneath the flange, a spacing member 25 located between the clamping elements 22, 23 to hold them apart so that both are retained in engagement beneath the flange, and screw means 27, 28 for urging together the clamping elements and thereby gripping a tube 26 or the like located between them. As shown, a channel 21 formed by the flange 20 is provided with teeth which prevent rotation of the elements 22, 23 in the channel after tightening: Cams 31 provided on the under surface of the base support a stirrup 35 and screw bolt 37 for clamping to the base a second tube 36. The stirrup 35 may be provided with grooves. In another arrangement, Fig. 4 (not shown), the channel in the base is of semi-circular crosssection and the underside of the feet of the clamping elements are inclined to assist the clamping action. The channel may, alternatively, be of semi-elliptical cross-section. In both embodiments, the channel is in the form of a closed circular ring so that the tubes can be clamped in parallel planes at any angle to one another.
Patent GB-760115-A (GB)
Title: An improved method of impregnating textile fabrics with a polyvinyl compound
Inventor: HOGG WILFRED HENRY
IPC: D06M15/244
Filed: 1953-07-08
Abstract: 760,115. Coated fabrics; laminated materials. DUNLOP RUBBER CO., Ltd. June 28, 1954 [July 8, 1953], No. 18886/53. Class 140. Textile fabric is impregnated with a solution in a plasticizer of polyvinyl chloride or a copolymer of vinyl chloride and a minor proportion of a copolymerizable compound. In an example, the impregnating solution comprises polyvinyl chloride, dioctyl phthalate, tricresyl phosphate and lead stearate. The composition may also include a fungicide and, as a cross-linking compound, tetraethylene pentamine. The fabric may be placed in an exhausted chamber and the solution admitted at 100‹ C. until the fabric is covered. Excess solution is removed by pressure rollers. Alternatively, the solution in the form of a semi-gel is spread upon the fabric by a doctor blade. The fabric is then heated by passage over a hot-plate or heated rotating drum to melt the semi-gel. The impregnated fabric may be further coated with a polyvinyl compound and such coated fabrics may be moulded together to form a laminated belt. Specification 726,667 is referred to.
Patent GB-166535-A (GB)
Title: Improvements in or relating to refrigerating machines
IPC: F25B23/00
Filed: 1921-07-12
Abstract: 166,535. Effertz, J. July 12, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Centrifugal Sprengel pumps. - A compression refrigerating machine comprising coaxial rotary casings forming a condenser and evaporator is provided with a centrifugal Sprengel pump in the casing forming the condenser. Sulphur dioxide is employed as the refrigerant. The rotary casing 1, 1<1> forming the condenser is attached to a shaft 1<11> driven from an electric or other motor, and is fitted with groups of radial capillary tubes 3 located between discs 2, 9 attached to the casing. The internal capacity of the casing is reduced by an annular mass 8 attached to the disc 9 and to other rotary discs 8<1>, 8<11> spaced apart. The fixed part of the pump comprises a hub portion 7, to which is secured a counterweight 6, radial arms 12, and bent tubes 11 conveying mercury from the periphery of the casing to the inner ends of the capillary tubes. The ends of the horizontal parts of the tubes 11 are closed, openings being provided in the horizontal portions registering with the ends of the capillary tubes. The refrigerant from the evaporator enters the casing by a large axial tube 5 and is entrained by the mercury. The casing rotates in cooling water, the heat being abstracted from the refrigerant by the mercury and transferred therefrom through the wall of the casing. The liquefied refrigerant passes to the open end of a tube 4 and through this tube to the evaporator. The delivery of refrigerant to the evaporator may be regulated.
Patent GB-1240483-A (GB)
Title: Preparation and use of nitrosodisulphonates
Inventor: COTTRELL WILLIAM RICHARD THOMA
IPC: C01B21/086
Filed: 1968-04-23
Abstract: 1,240,483. Oxidation of phenols. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 April, 1969 [23 April, 1968], No. 19111/68. Heading C2C. [Also in Division C7] Phenol is oxidized to benzoquinone by sodium nitrosodisulphonate.