baber/WOPTO huggingface dataset:
Patent GB-454668-A (GB)
Title: Improvements in the manufacture and production of mercaptans of high molecular weight
Filed: 1935-05-16
Abstract: Mercaptans of high molecular weight are prepared by passing the vapour of saturated or unsaturated aliphatic or cycloaliphatic alcohols containing at least twelve carbon atoms together with hydrogen sulphide over dehydrating catalysts at elevated temperature, preferably 150--450 DEG  C.  Increased or reduced pressure may be employed and inert gases or vapours, e.g. nitrogen, carbon dioxide or steam, may be present.  Catalysts mentioned are the oxides, phosphates, halides, sulphates and sulphides of beryllium, magnesium, calcium, strontium, barium, manganese, cadmium, zinc, copper, nickel, iron, titanium, zirconium, cerium, thorium, lead, phosphorus, vanadium, chromium, molybdenum, tungsten and uranium; surface-active catalysts are also suitable.  The products are useful for the manufacture of textile assistants and dyestuffs.  Examples describe the preparation of (1) octodecyl mercaptan from octodecyl alcohol using granular zirconium dioxide, or a mixture of zirconium dioxide and pumice meal, or active charcoal which may be activated with phosphoric acid; (2) octodecenyl mercaptan from octodecenyl alcohol using an aluminium oxide catalyst; (3) dodecyl mercaptan from dodecyl alcohol using titanium dioxide; (4) octodecenyl mercaptan from octodecenyl alcohol using the catalyst of (1); decahydro-a -naphthol is similarly converted into the mercaptan; (5) cetyl mercaptan from cetyl alcohol using zirconium oxide; (6) 1-mercapto-octodecylene from octodecane-1 : 12-diol using a bauxite catalyst.  The treatment of alcohols obtained by oxidizing paraffin waxes or by hydrogenating the fatty acids of natural glycerides is referred to.  Mixtures of the high-molecular alcohols with alcohols of low molecular weight may also be treated, in which case mixtures of mercaptans of high and low molecular weight are obtained.  Octodecenyl alcohol is prepared by the partial hydrogenation of oleyl aldehyde.
Patent GB-199915-A (GB)
Title: Improvements in screw-down stop valves and the like
IPC: F16K1/52
Filed: 1922-05-22
Abstract: 199,915. Eraut, W. May 22, 1922. F l u i d s , regulating volume of flow of; lift valves. - A screw-down stop valve is fitted internally with a separate perforated disc for regulating the maximum flow. The valve g is provided with a spindle c enclosed by a cap d to prevent unauthorized use. A partition j separates the inlet chamber k from the outlet chamber m, and the passage between the two is controlled by a perforated disc o. The openings r in the disc are of different diameters, and the disc is adjusted so that the required number of openings are over the chamber m. The disc may be secured by a screw s passing through one of a number of holes on the opposite side of the disc. The device is particularly applicable as an underground control valve for water supplies.
Patent GB-150096-A (GB)
Title: Improvements in or relating to electric condensers
Filed: 1919-06-06
Abstract: 150,096. Winn, R. W. June 6, 1919. Condensers.-The capacity of a condenser is varied by adjusting the position of the dielectric relatively to the plates. The sets of plates 1, 2 are connected to the condenser terminals, and the dielectric plates 7 of ebonite, glass &c. attached to a frame 5 may be inserted between the plates. The frame 5 may run on rollers 10. In a modification, Fig. 3, a liquid dielectric is used. The plates 25, 26 are supported by a bracket 29 so mounted that rotation of the pinion 30 against the rack 31 raises or lowers the plates to vary the depth of immersion.
Patent GB-331635-A (GB)
Title: Improvements in gas fired furnaces
IPC: F23D99/00
Filed: 1929-05-09
Abstract: 331,635. Wellman Smith Owen Engineering Corporation, Ltd., and Soward, H. W. May 9, 1929. Metal-heating furnaces.- A gas fired furnace for the heat treatment of metals comprises a combustion chamber 11 having controlled gas inlets 16 in the side and end walls thereof and a number of air inlets 15 distributed over the whole of the crown and supplied with air from a space 13 in the roof 12 of the furnace communicating with a fan the speed of which may be regulated to vary the air supply. Combustion products are led from the combustion chamber 11 and extension 11<a> thereof through outlets 19-20 respectively and enter flues 18 arranged above the air space 13 to assist in heating the air.
Patent GB-1165425-A (GB)
Title: Process for the Stabilization of Polymers
IPC: C08K3/014
Filed: 1967-03-30
Abstract: 1,165,425. Stabilizing PVC. OSKAR NEYNABER & CO. A.C. 30 March, 1967 [6 April, 1966], No. 14545/67. Heading C3P. [Also in Division 01]  A stabilizer for PVC is basic lead carbonate modified with basic lead sulphate (see Division C1). In the examples the stabilizer is mixed with PVC, dioctyl phthalate and wax.
Patent GB-401603-A (GB)
Title: A process and device for the industrial manufacture of an anticryptogamic powder having a copper oxychloride base
IPC: C01G3/06
Filed: 1933-05-19
Abstract: Copper oxychloride is obtained by treating copper simultaneously with air and an ammoniacal solution of ammonium chloride.  In carrying out the process, the copper may be placed in a tower provided with a false bottom, and mother liquor from the oxychloride, which is separated by decantation, be returned to the top of the tower.  A spray of hydrochloric acid is introduced into the top of the tower to prevent escape of ammonia into the waste gases.ALSO:In the preparation of fungicides, copper oxychloride is first obtained by treating copper simultaneously with air and an ammoniacal solution of ammonium chloride, the sludge obtained is separated from mother liquor by decanting, and the oxychloride then mixed with quicklime, whereby a dry powder is obtained. Adhesive substances, such as casein, molasses, or colophony and inert colouring materials, such as methylene blue, may be added. In carrying out the process, the copper may be placed in a tower provided with a false bottom, and mother liquor from the separated oxychloride and ammonia evolved when the latter is mixed with lime be returned to the top of the tower.  A spray of hydrochloric acid is introduced into the top of the tower to prevent escape of ammonia with the waste gases.
Patent GB-680938-A (GB)
Title: Improvements in or relating to window shade material
IPC: D06M13/08
Filed: 1950-06-12
Abstract: A coating composition consists of a halogenated ethylene polymer as the main polymeric ingredient, pigment, plasticizer, and magnesium oxide.  The pigment may be zinc, antimony, or iron oxides, titanium dioxide, carbon black, bone black, chrome green, orange or yellow, or ultramarine blue.  The plasticizer may be blown castor oil, dibutoxy ethyl phthalate, tricresyl phosphate, trioctyl phosphate, dioctyl phthalate, or di-(ethyl hexyl) phthalate, or combinations thereof. In the examples chlorinated ethylene polymer is dissolved in toluol. Specifications 481,515 519,422, 576,119 and 627,376 are referred to.
Patent GB-823455-A (GB)
Title: A furnace lining
IPC: F27D99/00
Filed: 1957-05-08
Abstract: 823,455. Furnace lining. RIELLO F. LLI OFFICINE FONDERIE. May 8, 1957 [Sept. 13, 1956; Jan. 4, 1957], No. 14615/57. Class 51 (1). The refractory lining of an oilfired furnace is supported by metal members each comprising a flat strip connected to a supporting rib so as to leave a space and having at each end a horizontal wing so that refractory slats fit between the wings and the flat strip to form the floor, and a vertical wing against which rest refractory slabs supported by inclined side members. The bottom bearers comprise flat strips 1 supported by and spaced from ribs 2 fitting in the bottom of the furnace and side pieces 6 extend at an angle to rest against the furnace walls, or are supported by legs. Vertical parts 4 and horizontal flanges 5 hold the inclined and horizontal refractory lining slabs in place. The side bearers 6 may have flanges 18 resting against the furnace walls, and the rib 2 may be bent up at its mid point to support the strip 1, Fig. 4. Several transverse bearers may be joined by horizontal strips 22, a single horizontal flange 5 extending the length of the furnace, Fig. 7. A box 24 formed at the chimney end of furnace prevents direct escape of tertiary air to the stack. The refractory slabs may be covered with a further lining of refractory cement 16 to form a curved cross-section following the contour of the flame. The outside supports 7 may also be protected by refractory cement, Fig. 10. Gaps between the bottom slabs allow the entry of tertiary air from the space 10 below the bearers, and gaps between the side slabs allow hot gases to flow in the space 15 round the lining and reduce heat loss.
Patent GB-560935-A (GB)
Title: Drilling and like machines
IPC: B23B47/02
Filed: 1942-10-21
Abstract: 560,935. Motor mountings. GOLDBERG, H. Oct. 21, 1942, No. 14766. Convention date, June 26. [Class 35] [Also in Groups XXII, XXIX, XXXII and XXXVII] In drilling &c. machines, means operated by an electric circuit initiate the feed stroke and control the point of reversal. The machine illustrated is of the pillar type with fixed drill head and vertically adjustable table. Suspended from the top 55d of the pillar by a flange 73a is a motor 73 driving the drill spindle by cone pulleys. Slots in the flange provide for adjusting the belt tension and facilitate belt shifting.
Patent GB-1030144-A (GB)
Title: Improvements in or relating to the manufacture of vehicle differential casings
Inventor: RONALD GOODACRE
IPC: B60B35/16
Filed: 1964-04-09
Abstract: 1,030,144. Making vehicle differential casings. LANSING BAGNALL Ltd. March 23, 1965 [April 9, 1964], No. 14776/64. Heading B3A. In the manufacture of a differential casing a tube is slotted on opposite sides along a middle portion, transverse slits are made at each end of the slot and opposed V-shaped notches are cut into the edges of the slot. The tube is subjected to compression thereby opening out the slotted middle portion to form a space 13 for the differential mechanism. The edges of the closed notches are welded together and machined plates 25, 26 (Fig. 6, not shown) are welded to the front and rear sides of the casing member. If required, the tube may be reinforced by internally or externally fitted sleeves. Alternatively, the sides of the tube may be deformed by pulling outwardly.
Patent GB-463016-A (GB)
Title: Improvements in or relating to operating mechanism for work holding jaws of chucks for machine tools
IPC: B23B31/30
Filed: 1936-05-25
Abstract: 463,016. Chucks. FORKARDT KOMMANDITGES., P. May 25, 1936, No. 14789. Convention date, May 24, 1935. [Class 83 (iii)] In a chuck whose jaws are actuated by a draw-spindle 5 operated by a fluid pressure piston 4, the piston acts on the spindle indirectly through mechanism located in the cylinder 1, and arranged symmetrically with regard to the cylinder axis so as to produce a force acting along the axis. The mechanism may consist of two or more levers 6 pivoted at 7 on projections from the cylinder cover 2 and engaging hard steel bushes 8 in the piston skirt. Intermediate portions 9 on the levers engage the draw-spindle 5 and the levers are arranged symmetrically about the axis of the cylinder and the draw-spindle. The levers 6 may be replaced by racks and pinions or wedges, or combinations of these elements may be used. Air or oil under pressure is admitted to the cylinder through a non-rotary coupling 3 and is controlled by a four-way valve.
Patent GB-961281-A (GB)
Title: Improvements in and relating to methods and devices for the manufacture of a bar by segregation from a melt
IPC: H01L35/16
Filed: 1963-04-16
Abstract: 961,281. Crystal pulling. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 16, 1963 [April 18, 1962], No. 14842/63. Heading B1S. A rod of a peritectic compound or mixed crystal is pulled from a melt of a different composition, said melt being of small volume and being replenished by melt which is of the same composition as the rod and which is fed from a large volume of melt in a reservoir maintained at a temperature higher than that of the melt being replenished. A peritectic rod of Tl 2 Te 3  may be pulled at 3 mm./hr. from a melt containing 29-34 atom per cent of Tl at 250 C., the replenishing melt being at 320 C. The rod may initially be of T1Te and the crystallizing melt may initially be of Tl 2 Te 3  at 300 C., the temperature being lowered as pulling proceeds. A mixed crystal rod of equal quantities of Bi 2 Te 3  and Sb 2 Te 3  may be pulled at 4 mm./hr. from a melt containing 37% of SbTe at 600 C., the replenishing melt being at 610 C. The rod may initially be of SbTe and the crystallizing melt may initially be the same as the replenishing melt. As shown, a rod 21 is pulled in a vessel 1 from a melt 20 the temperature of which is controlled by a resistance heating furnace 7. Melt 20 is replenished under the action of gravity by melt 22 in a reservoir 9 connected to vessel 1 by a capillary tube 8. The temperatures of melt in reservoir 9 and capillary tube 8 are controlled by resistance heating furnaces 11 and 10. Hydrogen is passed through the apparatus via inlet 14, tube 16, cock 18, and outlet 15 during pulling. An increased pressure in reservoir 9 may be provided at the commencement of pulling by turning cock 18. Rod 21 may be rotated during pulling. In another embodiment, Fig. 2 (not shown), a controlled difference in pressure between the atmospheres above the crystallizing melt and the melt in the reservoir is used to supply the replenishing melt. A rod of a compound having a volatile constituent may be pulled from a melt containing a lower proportion of the volatile constituent, the vapour pressure of the volatile constituent being less above the crystallizing melt than above the melt in the reservoir.
Patent GB-791330-A (GB)
Title: Apparatus for hanging and sealing pipe within a well head fitting
IPC: E21B33/04
Filed: 1956-01-31
Abstract: 791,330. Wells. CAMERON IRON WORKS, Inc. Jan. 31, 1956 [Oct. 27, 1955], No. 14935/57. Divided out of 791,329. Drawing to Specification. Class 85 The subject-matter of this Specification is substantially the same as that described in Specification 791,329 but the claims differ.
Patent GB-388970-A (GB)
Title: Improvements in rotary furnaces for combustion of town refuse and the like
IPC: F23G5/16
Filed: 1932-05-26
Abstract: 388,970. Refuse-consuming furnaces. CHRISTENSEN, A., 147, Oresundsvej, Copenhagen. May 26, 1932, No. 15020. [Class 51 (i).] The refuse is fed from a hopper 1 to a stationary drying grate 3 and thence to a stationary ignition grate 5 where partial combustion takes place, and from which it passes to a rotary furnace 6, the gases and vapours from the drying and ignition chambers 2, 4 being byepassed outside the rotary furnace through ducts 9, 16. The duct 9 extends from the upper part of the combustion chamber 4 to the smoke flue 7 of the rotary furnace as shown dotted or to the inlet channel 10 of the boiler plant, and is provided with a damper 15. The smoke flue 7 communicates with the boiler by openings 7<1>. The duct 16 leading from the drying chamber 2 is provided with a valve 17 and a fan 18 which exhausts the vapours to the chimney flue 14 of the boiler. One byepass duct only may be provided.
Patent GB-963970-A (GB)
Title: Process for the preparation of synthetic lubricants
IPC: C08F10/00
Filed: 1963-04-17
Abstract: Polymeric lubricating oils comprising a mixture of normally liquid and normally solid polymers are obtained by polymerising a C6-C16 alpha-olefin in two stages, the first being effected for 1 minute to 2 hours in the presence of a titanium halide and AlRnX3-n in which R is hydrocarbyl, X is hydrogen or halogen and n is 1, 2 or 3, in amounts such that the Ti:Al atomic ratio is 1:1-20 whereby normally solid polymer is formed and in the second adding titanium halide to the mixture to bring the Ti:Al ratio to 2-20:1 and polymerising for a further 1-16 hours to produce liquid polymers; the product is preferably hydrogenated.  Polymerization is effected in each stage at 40-200 DEG F. preferably in the presence of a saturated or aromatic hydrocarbon solvent in an amount of 20-80% by volume of the total mixture of solvent and monomer; the total amount of catalyst, after addition of the further titanium halide, may be 1-10% by weight of the monomer.  The catalyst is destroyed with water, an alcohol or dilute aqueous acid.  Diluent and preferably dimer are removed by distillation and hydrogenation is effected at 1,000-10,000 p.s.i.g.; and 350-450 DEG F. in the presence of nickel/kieselguhr or platinum dioxide.  Exemplified olefins are decene-1, and hexadecene-1.ALSO:Polymeric lubricating oils comprising a mixture of normally liquid and normally solid polymers are obtained by polymerizing a C6-C16 alpha-olefin in two stages, the first being effected for 1 minute to 2 hours in the presence of a titanium halide and AIRnX3-n in which R is hydrocarbyl, X is hydrogen or halogen and n is 1, 2 or 3, in amounts such that the Ti:Al atomic ratio is 1:1-20 whereby normally solid polymer is formed and in the second adding titanium halide to the mixture to bring the Ti:Al ratio to 2-20:1 and polymerizing for a further 1-16 hours to produce liquid polymers; the product is preferably hydrogenated.  Polymerization is effected in each stage at 40-200 DEG  F. preferably in the presence of a saturated or aromatic hydrocarbon solvent in an amount of 20-80% by volume of the total mixture of solvent and monomer; the total amount of catalyst, after addition of the further titanium halide, may be 1-10% by weight of the monomer.  The catalyst is destroyed with water, an alcohol or dilute aqueous acid. Diluent and preferably dimer are removed by distillation and hydrogenation is effected at 1000-10,000 p.s.i.g.; and 350-450 DEG  F. in the presence of nickel/kieselguhr or platinum dioxide.
Patent GB-143412-A (GB)
Title: An improved side delivery rake and swath turner
IPC: A01D80/00
Filed: 1919-06-14
Abstract: 143,412. Martin, W. E. June 14, 1919. Haymaking.-In combined. side-delivery rakes and swath-turners in which the rakes are carried by straight bars connected to rotating spiders or disks, and in which the central parts of the rakes are removed for swath-turning, the rake-carrying bars are raised considerably above the bearings in the spiders or disks, and the rake elements are connected to them by detachable hangers. Fig. 1 shows an angle-iron rake-carrying bar c fastened to end castings or forgings a having sockets a<2> to receive the short rods by which the bars c are connected to the spiders or disks. Each short rod has a vertical portion b and an horizontal portion b'. Each valve element has two hangers d, which are hooked over the bar c and secured by damps g. Plates f fill the space between the bar c and angle-iron rake heads c, E. The tines h are secured as described in Specification 106,985, short or long distance-pierces h<1> being employed between the rake heads and the tubes carrying the tines. In the modification shown in Fig. 4. the rake heads i are tubular, and t.he tines h are mounted directly on them. The end tubes i may fit into sockets on the end castings. The tubes i are connected together by sliding sockets j, which may be spring-controlled or provided with spring- controlled locking-pins j<1>. The hangers of the central rake need not be clamped to the bar c. The central rake may be provided with a socket j at one end and a dowel pin at the other to enter the tubular head i of the end rake. The carrying-bar c may be tubular.
Patent GB-1307086-A (GB)
Title: Apparatus for automatically performing chemical processes
Inventor: PENHASI H A
IPC: B01J19/18
Filed: 1970-03-31
Abstract: 1307086 Rotary conveyers BECKMAN INSTRUMENTS Inc 31 March 1970 [8 April 1969] 15067/70 Heading B8A [Also in Division B1] As fraction collector comprises vacuum-tight cylindrical housing 166 having a transparent cover 275 and enclosing rotatable tube rack 279, tube rack 279 being attached by shaft 283 to gear 281 which co-operates with arm 282 driven by motor 163 to enable stepping of the tube rack. Shaft 283 is rotatably enclosed by ball-bearings 287, 288 in housing 284. Housing 284 is sealably mounted in the bottom wall of main housing 166 and an O-ring 289 in an annular groove on the outer surface of rotatable shaft 283 provides a vacuum-tight seal. between theshaft and housing 284. Tubular liquid inlet device 285 is movable linearly by motor 290 to enable the dispensing of liquid into the inner and outer rows of tubes 276.
Patent GB-562302-A (GB)
Title: Velocity modulated electron discharge devices
IPC: H01J25/12
Filed: 1941-11-24
Abstract: 562,302. Electron velocity modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Nov. 24, 1941, No. 15102. [Class 39 (i)] In a velocity modulated discharge tube, wherein (i) a drift space is provided for the modulated beam to "bunch," and (ii) the velocity of the beam is controlled by the potential applied to a control electrode 4 within the drift space, this electrode is supported by three symmetrical rods 5 and the potential is applied to the electrode through one or all of the rods. The tube 7 housing the electrode 4 may be of larger diameter than the tubes on the walls 1, 1a so that the passage C for the electron beam may be of the same diameter throughout its length.
Patent GB-1007957-A (GB)
Title: Ceramic recuperators
IPC: C21B9/02
Filed: 1963-04-17
Abstract: 1,007,957. Heat recuperators. VEITSCHER MAGNESITWERKE A.G. April 17, 1963 [April 20, 1962], No. 15108/63. Heading F4S. A ceramic recuperator is composed of platelike rectangular blocks 1 and of grooved blocks 3 of similar overall shape, each having on one of its larger faces at least one first groove 11 of rectangular section and of a width corresponding to the thickness of the rectangular blocks extending across the whole extent of that face in a direction parallel to one pair of edges, and on half-grooves formed along said pair of edges each forming such a first groove with a halfgroove of a neighbouring block, and on the opposite larger face at least one second groove 4, extending over the whole extent of the face in a direction substantially at right angles to the first groove, and/or half-grooves each forming such a second groove with a half-groove of a neighbouring block, the plate-like rectangular blocks being assembled with the grooved blocks to form rectangular channels by fitting the rectangular blocks in the first grooves and the grooved blocks being so arranged that the second grooves of the blocks, arranged in mirror symmetry, form passages transverse to the channels.
Patent GB-1413381-A (GB)
Title: Water-insoluble preparations of peptide materials their production and their use
IPC: C12N11/08
Filed: 1973-03-29
Abstract: 1413381 Water-insolubilized peptide preparations BAYER AG 29 March 1973 [30 March 1972] 15114/73 Heading C3H [Also in Division C2] A water-insoluble preparation comprises a peptide material, e.g. a protein, an enzyme, e.g. penicillin acylase enzyme inhibitor or amino acid bound to a cross-linked copolymer comprising the copolymerized residues: A: 0À1 to 50 wt. per cent of at least one α,#-olefinically unsaturated dicarboxylic acid anhydride having 4-9 carbon atoms; and B: 99À9 to 50 wt. per cent of at least one di- and/or polyacrylate or methacrylate of a diol and/or a polyol as hereinbefore defined; the said copolymer having a bulk volume of 1-4 to 30 ml./g. and a specific surface area of 1-500 m.<SP>2</SP>/g. and containing, after hydrolysis of the anhydride groups, 0À02 to 10 milliequivalents of acid per gram. The copolymerized residues A of the copolymer are preferably derived from at least one of maleic, itaconic and citraconic anhydrides, residues B are desired from diacrylates and dimethacrylates of diols having 2-4 carbon atoms, or of reaction products of 1 mol. of diols having 2-4 carbon atoms with 1-20 mols. of at least one alkylene oxide with 2-4 carbon atoms, and trimethylol propane trimethacrylate.