baber/WOPTO huggingface dataset:
Patent GB-1220953-A (GB)
Title: Apparatus for the resistance welding of chain links
IPC: B21L3/02
Filed: 1968-05-09
Abstract: 1,220,953. Welding by pressure, ESAB Ltd. 9 May, 1968 [10 May, 1967], No. 22105/68. Heading B3R. In apparatus for resistance welding chain links of the single joint type having end portions with a common axis, hydraulic actuating units for each of pairs of clamping members are disposed such that, when a link is clamped by the clamping members, the units are at opposite sides of a symmetry plane of the clamped link, (said symmetry plane extending parallel to the common axis of the link end portions and at right-angles to the plane of the link), and are substantially alongside each other. By "substantially alongside each other" is meant that the projection of the axis of the hydraulic cylinder of one actuating unit on said symmetry plane either substantially coincides with the projection of the axis of the hydraulic cylinder of the other actuating unit on said plane or is separated therefrom by a distance not exceeding the centre-to-centre distance between the pairs of clamping members. As shown, a first pair of clamping members 4, 5 are operable by hydraulic cylinders 10, 11 constituting a first hydraulic actuating unit. A second hydraulic actuating unit comprises an hydraulic cylinder 13 to which are secured a second pair of clamping members having portions 6a, 7a by which they are secured to the cylinder. The pairs of clamping members also constitute the welding electrodes. The second actuating unit is part of a carriage 12 displaceable along guide means 12a by an hydraulic cylinder 18. The first and second actuating units are disposed at opposite sides of a symmetry plane of a chain link 3a held by the clamping members. The units are shown relatively offset, in the direction of movement of the chain through the apparatus, by an amount x approximately equal to the centre-to-centre distance y between the pairs of clamping members. In another embodiment (not shown) the second actuating unit comprises a pair of hydraulic cylinders and each of the pairs of clamping members is supported by means movable along a guideway. A thinning device 19 (Fig. 1) of the type described in Specification 883,261 is provided and comprises a trimming tool 21 and a pair of clamping levers 23 operable by hydraulic means 25. Although the frame 20 and frame 1 may be part of a common structure, frame 20 is preferably adjustable in position longitudinally of the chain. Trimming and welding operations may be performed simultaneously.
Patent GB-1088965-A (GB)
Title: Preparation of butadiene
IPC: C07C5/333
Filed: 1966-05-18
Abstract: Monoolefins are dehydrogenated to diolefins by contacting in steam at 550 DEG  to 700 DEG  C. with a catalyst containing 55-70% of iron oxide, 30-40% of potassium carbonate and 1.5-5.0% of chromium oxide, the catalyst being obtained from a paste formed by mixing a yellow iron oxide (Fe2O3.H2O) with K2CO3, Cr2O3 and water.  In examples butene is dehydrogenated to butadiene 1:3 at e.g. 500 GHSV steam: butene 12:1 ratio, at atmospheric pressure and 620 DEG  C.  The dehydrogenation of tert-amylenes to isoprene is also referred to.ALSO:A dehydrogenation catalyst comprises 55-70% of hydrated yellow resin oxide F2O3.H2O, 30-40% K2CO3 and 1.5-5% of Cr2O3, the constituents having been mixed with water to form a paste.  The paste may be extended to form pellets or tablets which are subsequently dried and calcined. Additionally the catalyst may contain phosphates, silica or cements.  It may be used in a fixed or fluidised bed. Comparative examples are given in which particle size, pore size, surface area and density data are disclosed.
Patent GB-934493-A (GB)
Title: Improvements in or relating to wilton carpet looms
IPC: D03D27/00
Filed: 1959-06-29
Abstract: 934,493. Wilton looms. M. VAN DE WIELE. June 29, 1959 [Nov. 29, 1958], No. 22165/59. Class 142 (2). Oscillations of a lever 5, produced by a crankpin 13 operating in a slot 14 in the lever, are magnified by block and tackle mechanism 2, 17, 18 to actuate the pile wire slide 1.
Patent GB-914365-A (GB)
Title: Improvements in data storage apparatus
Inventor: HOFFMAN GEORGE RICHARD
IPC: G11C7/02
Filed: 1959-06-29
Abstract: 914,365. Magnetic storage devices. NATIONAL RESEARCH DEVELOPMENT CORPORATION. June 24, 1960 [June 29, 1959], No. 22273/59. Class 38 (2). [Also in Group XXXIX] Cylindrical magnetic film elements of a storage matrix are deposited on glass tubes 2 through which the column conductors 3 are threaded. The row windings comprise balanced pair transmission line structures 6 interconnected so as to form a number of turns, each turn embracing all the elements of a row. The transmission lines are terminated by resistors 7. The magnetic film 1 is deposited on the outside of a tube 2 by the technique described in Specification 895,247 and the film is subsequently etched to leave discrete cylinders. Alternatively, the film may be left whole, the row conductors being so spaced that they control only discrete regions. The column conductors 3 are electrostatically screened from the row conductors by cylindrical conductors 4 embracing the tubes 2. The conductors 4 are split longitudinally to prevent eddy currents. Conductors 3, 4 together form coaxial conductors terminated by resistors 5. The elements and control conductors are potted in a slab 8 of plastic resin. The slab 8 is formed in a moulding frame across which are stretched wires with the same diameter as the screen 4 or wires carrying the screen 4. The wires are then stretched and removed and the screens are inserted if not already moulded in. The block is machined to size with grooves for conductors 6 which may be printed. The grooves may be moulded. Double moulded wires may be used for conductors 6 and only a single groove is then necessary for each row. Specification 895,248 also is referred to.
Patent GB-1341993-A (GB)
Title: Automatic tension regulation of yarn and wire winding devices
IPC: B21C1/12
Filed: 1971-04-19
Abstract: 1341993 Tension control, stop motion J F M BONNABAUD and C BRAT 19 April 1971 [24 Feb 1970] 22525/71 Headings DID and D1T [Also in Division F2]  Tension in yarn, wire or an assembly thereof being wound onto bobbin 19 is controlled by a swinging arm 9 over which the yarn passes and which controls a variable frictional drive to the bobbin. The yarn is forwarded by a capstan 3, 5 to pulleys 10, 13, 15 mounted on the capstan shaft and then pulleys 7, 12, 14 mounted on the swinging arm 9. The swinging arm 9 is mounted on a shaft 29 which also supports the variable frictional drive 33. There is also a device for quickly stopping the bobbin upon excessive tension or slackness in the yarn. Tension control is performed by swinging arm 9 over which the yarn passes on its way from capstan 3 to bobbin 9. Movement of arm 9 causes its threaded pivot 29 to vary the pressure of frictional engagement of driven pinion 28 and its socket 32 with the pinion 27 driven from the capstan shaft 4. Stop motion. Excessive movement of the tension control arm 9 causes a pawl to move away from a cam and be free to stop rotational movement of ratchet wheel 46. The ratchet wheel is frictionally engaged with the drive 32 to the bobbin and the latter is thereby braked. In an alternative embodiment excessive movement of the tension control arm 9 moves a brake pad (67) onto the drive to the bobbin (Fig. 4, not shown).
Patent GB-895052-A (GB)
Title: Improvements in or relating to fluid pressure control valve
Inventor: DOTTER JOHN H
IPC: F16K11/065
Filed: 1958-07-14
Abstract: 895,052. Valves. HOMESTEAD VALVE MANUFACTURING CO. July 14, 1958, No. 22537/58. Class 135. A fluid-pressure control valve comprises a chamber 8 with spaced control-ports, e.g. inlet 3, exhaust 42, and cylinder port 4, and containing packings 20, 37, 43 and 47 for isolating the ports held in position by ported spacers 17, 50 and 35, and a hollow ported piston-valve 51 slidable through the packings to interconnect the ports and actuated by fluid-pressure at 28, 58 acting on a two-stage piston device 22, 23, 56, the piston valve having a surface 13 acted upon by inlet pressure to bias the valve towards the pistons to an extreme control position. Pressure at 58 moves piston 56 over spigot 23 up to stop 60 whereby the cylinder port 4, which, as shown, is connected via port 52, passage 51 and ports 53 in the piston to exhaust, is cut off from both inlet and exhaust with the ports 53 to the left of packing 47. Pressure at 28 acting within piston 22 moves the piston further along spigot 23 so that shoulder 13 abuts spacer shoulder 12 and piston ports 33 move to the left of packing 37 so that cylinder port 4 is connected to inlet 3 via ports 33, passage 30 and ports 32. In a second embodiment the valve is provided with inlet, two exhaust ports and two cylinder ports and a connection from the inlet pipe allows inlet pressure to act on a shoulder at the end of the valve instead of shoulder 13 for biasing the valve to closed position.
Patent GB-1504919-A (GB)
Title: Substituted pyridino - 2,1,3 - thiadiazin - (4) - one- 2,2 - dioxides and their use as herbicides
IPC: C07D513/04
Filed: 1975-05-23
Abstract: Novel substituted 1H-(pyridino-[3,2-e]-2,1,3-thiadiazin-(4)-one 2,2-dioxides) of the formula I <IMAGE> in which R<1> denotes hydrogen, a straight-chain aliphatic hydrocarbon radical having up to 10 carbon atoms, a cycloaliphatic hydrocarbon radical having 3 to 7 carbon atoms, a branched aliphatic hydrocarbon radical having 3 to 10 carbon atoms or a halogen-substituted alkyl radical having 2 to 10 carbon atoms and R<2> denotes hydrogen, a metal atom or an optionally substituted ammonium atom, which are distinguished by a good herbicidal activity, are used for controlling undesired vegetation and as an active ingredient in herbicidal compositions.
Patent GB-615279-A (GB)
Title: Improvements in railway rail joints
IPC: E01B11/24
Filed: 1946-07-30
Abstract: 615,279. Rail joints. CHAGNON, G. July 30, 1946, No. 22617. [Class 104 (ii)] In a scarf joint, the rail head has a single slant cut to form a projecting lip 20 the form of a parallelogram to match a similar lip projecting from the adjacent rail. This lip 20 has an horizontal cut to form a second lip 21 and a ledge 22, the latter receiving the adjacent lip. The upper part of the web of one rail is recessed at 18, 19 to receive a projection formed by recessing the lower part of the web and the base of the adjacent rail.
Patent GB-189509-A (GB)
Title: Improvements in magneto electric generators
IPC: H02K21/38
Filed: 1921-08-26
Abstract: 189,509. Thompson, W. P., (Splitdorf Electrical Co.). Aug. 26, 1921. Inductor machines.-In magnetos of the inductor type in which the axes of the generating coil, the rotor, and the curvature of the magnets are substantially parallel, two sets of pole-pieces are mounted on the base structure, one set associated with the permanent magnet extending actively along the length of the rotor and arranged on opposite sides of it, and the other set associated with the generating coil being arranged on the same side of a horizontal plane passing through the rotor axis and being axially spaced apart. Figs. 1 and 3 show field polepieces 22, 24, the armature 16 and armature pole-pieces 10, 11, and Fig. 6 the construction of rotor. The inductors 32 .. 35 are preferably secured on the shaft by means of non-magnetic metal and locked by shaping the inductors, for example as shown in Fig. 7, the shaft being provided with a flat surface 31 and preferably having its diameter reduced. The interrupter member 48, Fig. 11, has a bearing surface 75 which co-operates with a bearing surface on the plate 5 and is adjustable for timing bv means of a bell-crank lever 72 mounted in the end-cover 60. An insulated thrust member 63 mounted on the cover 60 serves to hold the distributor finger 43 in position.
Patent GB-1428740-A (GB)
Title: Electric light-emitting apparatus
IPC: G09F9/33
Filed: 1973-05-11
Abstract: 1428740 Alpha-numeric displays MATSUSHITA ELECTRONICS CORP 11 May 1973 [15 May 1972] 22686/73 Addition to 1409330 Heading G5C [Also in Division F4] A light-emitting apparatus, e.g. a sevenelement numeral indicator, comprises an electrically conductive substrate 2 having a number of recesses 3 therein each having a flat reflecting floor 31, smooth reflecting sidewalls 32 perpendicular to the floor and an oblique, smooth reflecting surface 6 disposed at an obtuse angle a to the floor 31, a light-emitting diode 4 being secured and electrically connected to the floor of each recess with a wire 10 connecting the second electrode of each diode to a connecting tab 9 on an insulating substrate 1, a transparent resin 5 surrounding each diode and filling the recesses, and wherein there is provided a covering 12 which is transparent at least in lightdirnising regions 16 which have roughened or irregular surfaces 14 so located as to transmit light reflected from the oblique surfaces 6. The covering 12 may be a transparent plate with the side facing the oblique surface 6 and an opaque layer 15 covering parts other than the light-diffusing regions. The transparent material of covering 12 may be coloured, e.g. red.
Patent GB-227539-A (GB)
Abstract: 227,539. Crosthwaite Engineering & Furnace Co., Ltd., and Crosthwaite, G. D. Oct. 22, 1923. Fire-bars and grates. - A furnace grate comprises a number of longitudinally reciprocating troughs containing hollow sectional fire-bars and adapted by cam mechanism to be moved forwardly simultaneously and rearwardly in succession. As shown in Fig. 4, the troughs 18 are supported on front and rear bearers 7, 8, the upper surfaces of which are curved or provided with rollers, and contain hollow fire-bars formed in interlocking sections 19 and provided in the upper surfaces with transverse fantail openings 23 for the emission of air. The fire-bar sections are provided on their under surfaces with projections serving to space them from the trough and to allow for the circulation of air under atmospheric pressure around the outside of the bars. On the bottom of each section is a projection 24 provided with a screwed hole for securing it to the trough. The end sections 30 are closed at the inner end and at the end of the troughs may be arranged bridge pieces 32 having inclined upper surfaces 33. The outer bar sections comprise a Venturi tube 43 provided on opposite sides of its axis with cambearing surfaces 53, 57 with which the cams on the shaft 69 engage. The lateral grate bars are modified by providing each section with an upwardly inclined projecting portion on one side adjacent to the furnace flue. Figs. 20, 21 show the arrangement of the cams for a furnace provided with five reciprocating bars. A narrow cam 75 and two wide cams 76, 77 are disposed symmetrically upon the cam shaft 69 and serve to engage the cam-bearing surfaces 53 of all the bars and to move them simultaneously into the furnace. The cams 78, 79, 80, 81 and 82 are arranged at an angle of 45‹ apart and engage with the cam-bearing surfaces 57 to return the bars to the front of the furnace successively. The wide cams 76, 77 are adapted to engage with the cambearing surfaces 53 of two adjacent bars. Specifications 21514/00 and 6635/05 are referred to.
Patent GB-639478-A (GB)
Title: Improvements relating to mixing apparatus
IPC: B01F7/16
Filed: 1947-08-15
Abstract: 639,478. Mixing appliances. GROSSMAN, A. Aug. 15, 1947, No. 22794. [Class 86] Two co-axially mounted mixing propellers, the shaft of one rotating inside the other, are geared together so that they rotate at different speeds, the lower and inner one being connected directly to the driving shaft of the prime mover and rotating quickly to move precipitates &c. near the bottom of the tank, and the upper and outer one rotating more slowly, and being geared to the inner by an internally toothed ring. The prime mover is attached to a frame 10 and a flexible coupling 12 connects its shaft with the shaft 13 of the propellers. This shaft 13 is connected directly through a thrust bearing 38 to the shaft 20 of the inner co-axial propeller. Mounted on the frame 10 is a cylindrical body member 23 in which a cylindrical internally toothed member 17 is free to rotate. The shaft 36 of the outer propeller is keyed directly to this member. A pinion 28 mounted on the shaft 13 engages toothed wheels 29, 30 which engage the internal toothing of the cylinder 17 to rotate it at a slower speed than the shaft 20. The propellers are shaped so that the lower one directs materials upwardly into the path of the upper one which directs them downwardly. The thrusts therefore on the propellers are downwards for the lower one, a thrust which is taken up by the bearing 38. and upwards for the upper propeller, this thrust being taken by a ball bearing 39. The body member 23 is made substantially oil-tight by means of seals 46, 47, 48, 49 and oil is admitted to the gearing through a pipe 44 from which it can reach all the rotating parts.
Patent GB-301765-A (GB)
Title: Improvements relating to the purification of cereal products
IPC: B07B4/00
Filed: 1927-09-01
Abstract: 301,765. Simon, Ltd., H., and Denham, H. J. Sept. 1, 1927. Pneumatic separating. -Apparatus for purifying cereal products from dust and light particles comprises a rotating disc c, Figs. 1 and 2, having vanes d, e at opposite sides and enclosed in a casing f. The stock is fed from the hopper a to the centre of the disc and is thrown outwards by centrifugal action, while, a current of air entering at b<1> passes outwardly over one side of the disc and inwardly over the other to the discharge openings h carrying the lighter materials with it. The purified products are discharged through one or more openings g in the casing and the spout g<2>. An adjustable plate i controls the strength of the air current and a gate j on one or more of the openings g is provided for emptying the machine. The flow of air may be caused by a separate apparatus, and the dust laden air may be cleaned and re-circulated in the apparatus by dust removing apparatus similar to the apparatus shown arranged so that all the solid matter' is extracted and deposited in a filter. Several machines may be used in series.
Patent GB-996437-A (GB)
Title: Polymerisation process
IPC: C08F214/06
Filed: 1964-06-03
Abstract: Vinyl chloride is copolymerized with an ester of an ethylenically unsaturated mono or polycarboxylic acid in the presence of at least one epoxidized alkenyl ester of an ethylenically unsaturated carboxylic acid.  Specified comonomers are C1- 10 alkyl esters of acrylic, methacrylic, fumaric or maleic acids, e.g. 2-ethylhexyl acrylate.  Preferred alkenyl esters are allyl ester of dec-9-enoic acid, dodec-9-enoic acid, palmitoleic acid, gadoleic acid, arachidonic acid, cetoleic acid, erucic acid, nervonic acid, oleic acid, linoleic acid, petroselenic acid, vaccenic acid and linolenic acid. Polymerization may be effected in aqueous dispersion in the presence of lauroyl peroxide and polyvinyl alcohol.  In examples, vinyl chloride and 2-ethylhexyl acrylate are copolymerized in the presence of epoxidized allyl tallate.
Patent GB-1415999-A (GB)
Title: Process for forming phosphate coatings
IPC: C23C22/36
Filed: 1974-05-23
Abstract: 1415999 Phosphating metal surfaces PYRENE CHEMICAL SERVICES Ltd 23 May 1974 [29 May 1973 23 Aug 1973] 23028/74 Heading C7U Phosphate coatings on steel, Zn or Al are formed by contacting the surface with an aqueous solution containing (g./l.) 0.5 to 10 Zn, 1.5 to 13 P 2  O 5 , 0.1 to SF, either as F or SiF 6 , and 0.02 to 0.15 H 2 O 2 , the temperature being 20 to 75‹C and the ratio of free to total acid from 1:5 to 1:30. The bath may also contain Cu, Ni, SO 4 , NH4, NO 3 , Cl ions and other additives e.g. condensed phosphates, citric or tartaric acids, tensodes, polysaccharides, polyethers, polyalcohols, polyectrolytes, polyamides or polycarboxylic acids. The ratio of Zn to P 2 O 5  ions in a replenishing solution is disclosed. A replenishment solution may also contain ZnO, ZnCO 3 , ZnF 2 , Zn, NiO, NiCO 3 , Na 2 CO 3 , NaHCO 3 , NaHPO 4 , Na 3 PO 4 , NaF or NaOH. The H202 may be introduced as H 2 O 2 , zinc peroxide, sodium carbonate, peroxohydrate or sodium phosphate peroxohydrate.
Patent GB-531980-A (GB)
Title: Process for the cold working of non-rusting steels
IPC: C23G1/08
Filed: 1939-08-09
Abstract: 531,980. Drawing. METALLGES. AKT.-GES. Aug. 9, 1939, No. 23029. Convention date, Sept. 20, 1938 [Class 83 (iv) ] Stainless steels particularly those of austenitic structure containing Cr and Ni are pickled with the usual strong mineral acids and then treated with an acid solution of a readily hydrolysable ferric salt. After this treatment and when coated with the usual lubricants such as wool grease, tallow &c. the steel is suitable for cold working more particularly drawing. A suitable pickling bath is water 300 parts by volume sulphuric acid (sp. gr. 1.84) 140 parts, hydrochloric acid (sp.-gr. 1.19) 160 parts, potassium persulphate solution (10 per cent.) 600 parts, the time being 365 minutes at 90‹ C. For steel containing 18 per cent. Cr and 8 per cent. Ni. the after treatment may be for 20 minutes at 90 to 95‹C. in a solution containing per litre 19 grams HCl and 10 grams ferric acetate.
Patent GB-1089867-A (GB)
Title: Unsaturated diesters and processes for their preparation
Inventor: TOURNIAIRE CLAUDE ANDRE
IPC: C07C/
Filed: 1966-05-24
Abstract: The invention relates to unsaturated diesters of a general formula <FORM:1089867/C2/1> wherein R and R1 are the same or different and each is a hydrogen atom or a methyl group. The compounds may be prepared by reacting (1) 2 mols. of a glycidyl ester of the formula <FORM:1089867/C2/2> with 1 mol. of bis-(4-hydroxy) sulphone of the formula <FORM:1089867/C2/3> or (2) 1 mol. of a glycidyl derivatives of the formula <FORM:1089867/C2/4> with 2 moles of an acid of the formula <FORM:1089867/C2/5> or (3) by 2 mols. of a salt of the formula <FORM:1089867/C2/6> wherein M is an alkali metal preferably sodium with a compound of the formula <FORM:1089867/C2/7> wherein Hal is a halogen preferably chlorine or bromine.  An example is given in which R is methyl and R1 is hydrogen.
Patent GB-295363-A (GB)
Title: Improvements in paper punching devices
IPC: B26F1/36
Filed: 1928-08-10
Abstract: 295,363. Suda, G. R. Aug. 10, 1927. [Convention date]. Affixing tape and like strips.-In a machine for punching holes in documents and applying to the punched portion an adhesive reinforcement strip, a die-plate 16 is raised against the pres. sure of springs 19 through a rocking-lever 18, and rack-bars 9 on depression of a handle 2. The racks turn a roll 7 of adhesive strip and, through gearing and a ratchet device 14, a moistening roll. The edge of the die-plate shears the length of moistened strip when the die-plate is raised, and subsequently the strip is applied to the document by a stripper plate 5, which is lowered with the punches 4. Two short reinforcements may be applied instead of a strip and the pinions 8 may be disengaged from the racks when the machine is used solely for punching.