baber/WOPTO huggingface dataset:
Patent GB-699453-A (GB)
Title: Improvements in or relating to the distillation of devil liquor derived from gas works ammoniacal liquor or similar liquors
IPC: C01C3/04
Filed: 1950-03-06
Abstract: Gas works "devil liquor" is preheated to 80 DEG -90 DEG C and submitted to fractional distillation in a column, and the vapours leaving the head of the column are condensed; the condensate separates into an aqueous layer, which is returned to the head of the column, and an oil layer which contains pyridine, acetonitrile and other organic nitrogen compounds.  The aqueous liquor withdrawn from the base of the column is free from hydrogen cyanide, hydrogen sulphide and other obnoxious compounds, and is run into the sewer. When the hydrogen cyanide and hydrogen sulphide leaving the head of the column are not condensed in the main condensate, they may be condensed subsequently, and the condensate may be fractionally distilled to yield pure hydrogen cyanide.  If it is not desired to recover the HCN, the mixture of H2S and HCN may be passed to a catalytic oxidation plant for the production of sulphuric acid.  In an example, "devil liquor" is preheated to about 85 DEG C, and introduced into a 17-plate column, the preheated feed being supplied at the 4th plate from the top.  Steam (3 p.s.i.g.), is introduced into the base of the column at the rate of 0.5 lb. per gallon of "devil liquor."  The vapours from the column are passed through a cast iron or stainless steel condenser maintained at 40 DEG -45 DEG C.  The oil layer, which separated from the condensate, is withdrawn and submitted to fractionation.  The fraction collected between 70 DEG  and 85 DEG C comprises the water azeotropes of acetonitrile and propionitrile, from which pure nitriles may be obtained by dehydration followed by fractionation.  The fraction of the oil layer coming over between 85 DEG  and 130 DEG C contains pyridine, the picolines, and 2:6 butidine.  The residue boiling above 130 DEG C may be worked up for the recovery of aniline, quinolines and benzonitrile.  Automatic control may be installed to control the admission of steam to the primary column in accordance with the temperature of the vapours measured at a point after leaving the head of the column at which point partial condensation has taken place. If the "devil liquor" has been dephenolated prior to fractionation, milk of lime may be introduced with the liquid into the column to react with HCN and H2S.  The oil layer derived from undephenolated "devil liquor" may be subjected to alkali extraction before fractionation.  Alternatively alkali extraction is carried out on the residue remaining after fractionation of the oil to 85 DEG C.
Patent GB-166495-A (GB)
Title: Improvements in or relating to preparing hides for tanning
IPC: C14C15/00
Filed: 1920-02-14
Abstract: 166,495. Manvers, A. Feb. 14, 1920. Treatment preliminamy to tanning.-In preparing hides for tanning, they are suspended in a strong chamber or autoclave provided with a pipe H for obtaining a high vacuum, pipes F, G for filling and emptying respectively, and cocks D for admitting air when required. In the case of hard salted hides, they are subjected to vacuum to exhaust occluded air and are then softened in water under vacuum, blasts of air being admitted through the cocks D from time to time, to agitate the water and dash the hides about. Hides are limed in a similar manner, lime and water with or without other chemicals being introduced and the temperature raised to about 80‹ F., the vacuum being maintained and occasional blasts of air admitted to stir up the lime. The hides are subsequently washed, delimed with a little acid and if not to be immediately tanned, are dried in a partial vacuum with hot air. Specification 2144/71 is referred to.
Patent GB-819063-A (GB)
Title: Improvements in and relating to self-lubricating bearings
Inventor: ADLER GEORGE FRITZ WERNER
IPC: F16C33/10
Filed: 1955-02-25
Abstract: 819,063. Lubricating. ENGLISH ELECTRIC CO. Ltd. Feb. 17, 1956 [Feb. 25, 1955], No. 5700/55. Class 12 (3). [Also in Group XXVI] A vertical shaft 1, for example the shaft of an hydraulic turbine, has mounted thereon a rotary oil sump 2 which surrounds a plain bearing 3. A stationary circumferential baffle 4, arranged close to the wall of the sump, is fixed to the bearing, and ribs 5 are fitted between the bearing and the baffle to prevent oil in the sump 2 from rotating. Grooves 9 provided in the bearing are in communication through ducts 8 with the lower part of the sump 2, whereby as the shaft rotates oil is carried along to the bearing. The space 10 inside the baffle 4 is connected to an oil reservoir 7 by ducts 6 which act as vents for air or as overflows for oil from the reservoir to the space 10.
Patent GB-904419-A (GB)
Title: A multi-pin electric plug
Inventor: GREASLEY ERIC ARTHUR
IPC: H01R13/502
Filed: 1960-02-18
Abstract: 904,419. Two-part couplings. PRESSAC Ltd. Feb. 20, 1961 [Feb. 18, 1960], No. 5752/60. Class 38 (1). A multi-pin electric plug comprises a dish or cup-like body part 1 having its base 2 formed with a ring of holes 3 for receiving a ring of pin contacts 4 mounted on and extending from, one face of a separate plate or disc 5, which is maintained flush against the inner face of the base 2 of the body part 1 by an inwardly-extending boss 11 formed on a cap 10 secured to the body part by a bolt 13 and captive nut 16. A shutter blade or locating key 7 may be added.
Patent GB-944039-A (GB)
Title: Improvements in or relating to supporting plates for printed circuits
IPC: H05K1/02
Filed: 1960-02-18
Abstract: 944,039. Aerials ; radio receiver arrangements. PHILIPS ELECTRICAL INDUSTRIES Ltd. Feb. 18, 1960 [Feb. 21, 1959], No. 5783/60. Headings H3Q and H4A. [Also in Division H1] An aerial consists of a metal frame 3 which has a gap 6 and holds the edge of an insulating plate 1 provided with a printed circuit 2. The conductive strip 5 is connected to the frame and acts as aerial connection.
Patent GB-1124175-A (GB)
Title: Improvements in structural bars
IPC: E04C3/06
Filed: 1966-02-10
Abstract: 1,124,175. Bars. F. HOLZINGER. 10 Feb., 1966 [20 Nov., 1965], No. 5811/66. Heading E1K A structural bar or beam has a central core 1 with flanges 2a connected to longitudinal outer strips 3, at points intermediate the edges of the strips, to form a number of peripheral channels 8 on the bar, equal to the number of flanges. The channels are for the reception of fastening means and may be offset relative to the central core 1.
Patent GB-419188-A (GB)
Title: Screw threading die heads
IPC: B23G5/12
Filed: 1934-02-22
Abstract: 419,188. Screwing die-heads. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Landis Machine Co.; West 5th Street, Waynesboro, Pennsylvania, U.S.A.) Feb. 22, 1934, No. 5837. [Class 83 (iii).] A self-opening screwing die-head comprises a body 10 provided with dove-tailed slots 14 for radially movable die-carriers 11 having tangential chasers 12 secured thereto. The carriers are operated by bevelled projections 17 on a ring 20 slidable axially on the body, the carriers having bevelled surfaces 36 and keys co-operating with keyways 34 on the projections. Rotation of the ring 20 on the body is prevented by the projections passing through slots in the end flange 16 of the body. The chasers are locked in the cutting position, as shown in Fig. 8, by dogs 28 on a locking ring 27 which engage the face 29 of the ring 20. The ring 27 abuts against a nut 26 screwing on the body 10 which serves to adjust the cutting size of the head. In operation, when the desired length of thread has been cut, a ring 31 splined to the ring 20 is moved rearwardly by mechanism engaging the yoke-groove 52 therein, whereupon radial pins 32 on the ring 31 travel along helical slots in the ring 27 to rotate the latter until the dogs 28 are opposite to recesses 41 in the ring 20, thus allowing springs 23 to push the ring 20 rearwardly and open the head. To re-set the head, the ring 31 is moved forwardly, thereby pushing the ring 20 forwards until the dogs 28 are clear of the recesses 41, whereupon a spring pin 44 engaging an inclined surface 45 on the ring 27 rotates this ring to cause the dogs 28 to lie against the face 29. The pin 44 also serves to maintain the locking ring 27 against the adjusting nut 26. A key on the ring 27 engages a slot in the ring 31 to limit rotation of the ring 27.
Patent GB-491221-A (GB)
Title: Process for producing diesel oils
IPC: C10L1/08
Filed: 1937-02-26
Abstract: Diesel oils are obtained by mixing (a) the paraffinic oils prepared by catalytic conversion of carbon monoxide and hydrogen with (b) liquid or solid carbonaceous products poorer in hydrogen. Suitable fractions under (a) are those boiling above 200 DEG  C.; suitable products under (b) are pit-coal tar oils, brown coal tar oils, low temperature distillation oils, shale oils, wood tar and the like obtained by high or low temperature coking of pit-coal, brown coal, shale, wood, peat and the like, extraction products of pit-coal and brown coal, products of mild hydrogenation, and solid hydrocarbons. If the last are insoluble in the paraffinic hydrocarbons they are brought into solution or suspension by means of dissolving agents. The hydrogen content of the products poor in hydrogen should not be so low as to cause excessive precipitation on addition of the paraffinic hydrocarbons; in some cases it is desirable, prior to mixing, to treat the product poor in hydrogen with a small quantity of gas oil to precipitate the insoluble substances which are then separated off.  The substances so precipitated can be hydrogenated to useful oils.  Also, in some cases the product from which the precipitate has been removed may be subjected to mild hydrogenation prior to mixture with the paraffinic hydrocarbons.  The final mixture may be treated with fuller's earth and/or lye.  The constituents are preferably mixed in such proportions as to give a Diesel oil of density 0,84-0,86 and a solidification point of about -20 DEG  C.  In the examples, Diesel oils are produced from (1) pit-coal tar oil of density 1,09, and a synthetic paraffinic oil of density 0,76 and initial B.P. 200 DEG  C.; (2) brown coal tar of density 0,907 and B.P. 200-300 DEG  C., and a synthetic oil of density 0,77 and B.P. 200-310 DEG  C.; (3) a pit-coal distillate of density 1,07 and B.P. 215-360 DEG  C. and the synthetic oil of example 2; (4) a pit-coal low temperature tar fraction of density 0,991 and B.P. 200-320 DEG C. and the synthetic oil of example 2; (5) a dephenolated pit-coal low temperature tar fraction of density 0,996 and B.P. 200-320 DEG C. and the synthetic oil of example 2; (6) an incompletely hydrogenated brown coal oil of density 0,901 and B.P. 200-300 DEG  C. and the synthetic oil of example 1; (7) a pit-coal first stage hydrogenation oil of density 0,974 and B.P. 200-320 DEG  C. and the synthetic oil of example 2; (8) a liquefied extract obtained by mild hydrogenation of pit-coal and having a density of 1,028 and B.P. 200-320 DEG  C., and the synthetic oil of example 2; and (9) a heavy anthracene oil, first purified by treatment with gas oil, and a synthetic oil of B.P. 200-310 DEG  C.
Patent GB-1037214-A (GB)
Title: An improved method of a means for winding yarn
Inventor: TAYLOR JAMES DOVE WILFORD
IPC: B65H51/20
Filed: 1963-02-14
Abstract: 1, 037, 214. Depositing yarn in cans; winding yarns. WILLIAM AYRTON & CO. Ltd. Feb. 10, 1964 [Feb. 14, 1963], No. 5941/63. Headings D1F and D1J] A method of winding yarn comprises drawing the yarn from its initial source 10, feeding it into one end of an open-ended yarn accumulating can 13, drawing it out continuously from the other end of the cam and feeding it directly to a ball winder 16 to 18. The passage 13 may include a window 20 through which a beam projector 21 and a light sensitive receiver 22 co-operate to stop and restart the feed rollers 12 such that the can 13 will not be filled to cause overspill at either end.
Patent GB-332569-A (GB)
Title: Improvements in the method of and apparatus for recovering oil and grease
IPC: C11B13/00
Filed: 1929-02-23
Abstract: 332,569. Morse, W. G. Feb. 23, 1929. Gravity-separation apparatus.-In a process for recovering oil and grease from substances coated with or holding oil, for example refuse from garages, water is added and the mixture is caused to flow slowly down an inclined surface and simultaneously to spread out laterally and then to flow on to the surface of a body of water, so that a layer of oil collects thereon. Water carrying oil, grease and dirt is delivered from a sump Q through a pipe P to the apex of a triangular table L, which may be corrugated or ribbed, so that as the mixture passes down to a chamber D it is spread out and the flow retarded. Oil separates as a floating layer in the chamber D, dirt J settles and the water passes between partitions B, C into a chamber F. Some oil separates in the chamber F and the water is discharged through a semi-circular passage H<3> and pipe H<2>. Each chamber is provided with an outlet G for oil, and the chamber D has a gas release pipe K. A steam heating pipe R may be fitted beneath the table L.
Patent GB-1102301-A (GB)
Title: Improvements in or relating to burners and gasifiers
IPC: F23R3/30
Filed: 1966-02-11
Abstract: 1,102,301. Generating combustion products under pressure. COMBUSTION EFFICIENCY CORPORATION. Feb. 11, 1966 [Sept. 1, 1965], No. 6086/66. Heading F1L. [Also in Division F4] In a burner arrangement for use in a jet engine or other apparatus each burner has an inner burner shell 18 and outer casing 17 forming an annular passage 19 connected by a throat to the engine compressor supplying air, a part of which passes into the shell 18 through openings 22, the shell 18 containing a gasifying chamber 40 into which fuel is supplied by a pipe 41 and gasifying air enters by a sleeve 45 in such quantities that the fuel ignited by means of a spark plug 47 is only partially consumed and the heat of combustion gasifies the remainder of the fuel which then passes with the products of combustion via a pipe 50 to the air inlet where the mixture enters the air stream through a space between members 30, 31 forming a Venturi inlet to be carried into the combustion chamber of shell 18 where complete combustion takes place.
Patent GB-692706-A (GB)
Title: Electrostrictive ceramics and transducers utilizing them
IPC: H01L41/257
Filed: 1950-03-13
Abstract: A refractory composition comprises barium titanate in an amount substantially equal to but not less than 96 per cent. and the remainder lead titanate or lead oxide.  It is polarized at a temperature equal to or greater than the Curie point.  A temporary binder, e.g. halowax in carbon tetrachloride, is added to aid pressing, the pressed bodies then being fired.
Patent GB-1397531-A (GB)
Title: Clasp for chains necklaces and the like
IPC: A44C25/00
Filed: 1974-02-12
Abstract: 1397531 Clasps J KOEHLE KG 12 Feb 1974 [27 Feb 1973] 06298/74 Heading E2A A clasp for a chain, necklace or the like comprises an open ended ring member 12, upon which eyelets of rings are to be placed, hinged at 20 to a closed ring 10 the ends 24, 26 of ring 12 engaging in recesses 28, 30 of a connecting element 22 extending from ring 10, the ring 12 being held in position by means of a V-shaped loop 32, pivoted to the connecting element 22. The connecting element has stop faces 38, 40 against which the ends 24, 26 abut. The distance between the free end of loop 32 and its pivoted axis is slightly less than that between the connecting element upper surface and the pivotal axis so that the loop is prevented from pivoting back from its position holding the ends 24, 26 in place. The eyelets are elliptical in shape having a bore at a smaller end which opens into a recess.
Patent GB-1523761-A (GB)
Title: Heat exchanger
IPC: F28D1/047
Filed: 1975-02-14
Abstract: 1523761 Burners; air heating stoves PARKINSON COWAN APPLIANCES Ltd 28 Jan 1976 [14 Feb 1975] 6304/75 Headings F4S and F4T A heat exchanger (in particular for space heating) comprises an elongate combustion unit 10 having the following features (a) a combustion chamber 11, (b) a fuel/air inlet 15 (gas being the preferred fuel) and an exhaust gas outlet 16, both at one end of said unit, (c) a fan, not shown, in a duct connected to or forming part of the exhaust gas outlet 16 for effecting circulation of the fuel/air mixture and combustion products; said unit 10 being mounted on a support (e.g. a plate 20) to which it is connected at the unit end remote from the inlet/outlet 15, 16 by means (shown as a pin and slot connection 22) which permit relative expansion between the combustion unit 10 and its support. The arrangement shown includes a further duct 19 for excess air used to dilute the combustion products passing out of the combustion chamber via passages 13 in a wall of the combustion chamber. The fuel/air mixture enters the combustion chamber via passages 12 in another wall of the combustion chamber. External fins 14 are formed on the unit 10 to heat room air circulated over the unit as indicated by the arrows in Fig. 3.
Patent GB-1147872-A (GB)
Title: An illuminated collar for a domestic or other animal
Inventor: SIMPSON ERNEST
IPC: A01K27/00
Filed: 1966-02-14
Abstract: 1,147,872. Battery lamps combined with dog collars. E. SIMPSON. 15 May, 1967 [14 Feb., 1966], No. 6328/66. Heading F4R. [Also in Division A1] An illuminated collar for a domestic animal includes a housing 10 which contains a battery and bulb arrangement. The light is switched on either by means of a screw 19 which contacts the terminal strips 13a connected to the batteries 14, or by means of a press switch at the end of a lead which is plugged into the sockets 13b.
Patent GB-1302916-A (GB)
IPC: C07C241/00
Filed: 1970-02-10
Abstract: 1302916 Organic isocyanates OLIN CORP 10 Feb 1970 [10 Feb 1969] 6344/70 Addition to 1275809 Heading C2C [Also in Division B1] Organic isocyanates are produced by reacting an organic nitro compound with carbon monoxide at elevated temperature and pressure in the presence of a mixture or complex of (i) a noble metal halide or oxide and (ii) nitrogencontaining compound of formula RR<SP>1</SP>NC(Y) = X wherein: X is O, S, NR<SP>3</SP> or NR<SP>2</SP>.A where A is an inorganic acid; Y is R<SP>4</SP>, halogen, NR<SP>5</SP>R<SP>6</SP> or SR<SP>7</SP>; and any R is hydrogen, alkyl, aryl, alkaryl, aralkyl or alkoxyaryl-all optionally halogen substituted (see Division B1). Many suitable organic nitro compounds, nitrogencontaining compounds and noble metal halides are specified. The examples all relate to the conversion of 2,4-dinitro toluene to 2,4-toluene di-isocyanate, 2-isocyanato-4-nitrotoluene and 4. isocyanato - 2 - nitrotoluene at 190 C. and 2500-3800 p.s.i.g.
Patent GB-247407-A (GB)
Title: Improvements relating to motor cycle wind screens
IPC: B62J17/04
Filed: 1925-03-09
Abstract: 247,407. Rogers, H. L., and Hulme, W. B. March 9, 1925. Weather-screens.- In means for mounting a wind-screen in any desired position on a motor-cycle handle-bar of any normal shape, the screen a is carried between a pair of parallel main rods b, each of which is slidably and rotatably connected to a bracket c slidably and rotatably connected to the handlebar d. Each bracket consists of two parallel rods c, which are arranged on opposite sides of the handlebar d and terminate in a two-part clip, one part e of which is rotatable relatively to the other part f, the adjacent faces of the parts being in a plane at right angles to the rods c. The rod b passes diametrically across the part e, and the two clip parts and the rod b are secured in adjusted position by a single bolt g, through the enlarged end of which the rod b passes. The rods c are connected to the handlebar d by a triple clip, of which one clip h embraces the handle-bar, and each of the other clips i embraces one of the rods c. All the parts are secured by a single bolt j, about which each of the clips is capable of angular movement. A strut m may be arranged between the top of each rod b and an adjustable clip l on each bracket c.
Patent GB-563988-A (GB)
Title: Improvements relating to the introduction of solid materials into vessels containingliquid under pressure
IPC: C02F1/68
Filed: 1943-04-21
Abstract: 563,988. Introducing solid materials into vessels containing 'liquid under pressure softening water. PERMUTIT CO., Ltd., and HARBINSON, G. C. April 21, 1943, No. 6431. [Class 46] In plant in which solid material in the form of particles or grains has to be introduced into a closed vessel 1 containing liquid under pressure, such as a water-softening plant in which the calcium carbonate is crystallized on to nuclei suspended in the water, as described in Specifications 507,750 and 522,430, a hopper 8 for the solid material and a pump 10 are inserted in a closed pipe circuit from the vessel ; when it is desired to introduce more solid material into the vessel, the pump 10 draws liquid from the pipes 5, 7 through the hopper 8 to entrain solid material which is forced with the liquid into the vessel. The vessel 1 is of conical form so that the rising liquid stream drops in velocity and the particles after being entrained and introduced into the vessel are not carried out but remain in suspension. In the normal water-softening operation, raw water enters by a tangential inlet 2 and lime for softening by an inlet 3 and the particles or grains of solid material 4 are maintained in suspension by the helical liquid flow whereby the hardness-forming material is removed as calcium carbonate which crystallizes on to the particles and the softened water is delivered through a pipe 5. The particles grow in size and from time to time are removed through an outlet 6. New material is introduced by the pump 10 drawing water from the pipe 7 tangentially through the hopper 8 to entrain the solid material and force it_through pipe 11 to the vessel 1. The pump 10 is primed through a water supply pipe 17.
Patent GB-100877-A (GB)
Title: Improvements in Pit Tubs.
Inventor: WRIGHT ALBERT LESLIE
IPC: B61D11/02
Filed: 1916-05-06
Abstract: 100,877. Wright, A. L., and Smedley, F. I. May 6, 1916. Addition to 100,767. Corves; doors, wagon; sides. - The lower corners of the sliding plate or board f of the pit tubs described in the parent Specification are cut away as shown at f<1> to fit over the buffer beams 5 when the plate is lowered, thus permitting the use of a fixed plate d of less depth and providing an increased opening for loading. When the plate f is raised, the cutaway corners are received between front upward extensions 7 of the plate d and pieces 8 secured to the back of the plate d, thus making the joint, dust-proof. The plate f may carry angle-pieces 9 to engage the inner edges of the guides c; or, as a modification, Fig. 5, the top strap h of the plate f may be extended beyond flat guide-members c<1>, its ends being bent forwardly to engage the outer edges of such members.
Patent GB-826842-A (GB)
Title: Improvements in or relating to the sealing of enclosures for electrical devices
IPC: G01K1/08
Filed: 1956-02-27
Abstract: 826,842. Two-part couplings. MINNESOTA MINING & MANUFACTURING CO. Feb. 27, 1956 [April 8, 1955], No. 6553/59. Divided out of 826,841. Class 38 (1). In a sealing arrangement for an enclosure 10 containing, for example, a thermo-couple 11, as described in Specification 826,841, and to which connection is made by a coaxial cable 18, the outer conductor 19 of the cable is soldered or brazed to a cap 17 of the enclosure and a sleeve 32 of resilient insulating material, e.g. silicone rubber, is located between the inner and outer conductors of the cable at the end thereof remote from the enclosure. The central conductor 20 terminates at this end in a stud contact 28 backed by an insulating spacer 29 which abuts the flared end 27 of the outer conductor and also maintains sleeve 32 under compression. A sleeve 28 surrounding the cable end behind the flared part 27 is adapted to screw into a co-operating connector socket 33 and hold the contact 28 in engagement with a central stud contact 34 in the socket 33. Specifications 765,884, 766,999 and 826,843 also are referred to.