baber/WOPTO huggingface dataset:
Patent GB-701502-A (GB)
Title: Improvements in or relating to the production and separation of sulphonated organic compounds
IPC: C07C303/44
Filed: 1949-02-25
Abstract: A process for the recovery of a sulphonic acid obtained by reacting an aromatic hydrocarbon with oleum or sulphur trioxide in the presence of liquid sulphur dioxide as solvent comprises adding to the solution a salt of a sulphonic acid and distilling the mixture for the removal of sulphur dioxide.  A modified process comprises adding to the solution a salt of a sulphonic acid and before or during distillation a volatile hydrocarbon which is chemically inert under the distillation conditions and which is a mobile liquid at -10 DEG C. and distilling the mixture to take overhead substantially all of the liquid sulphur dioxide and some or all of the added volatile hydrocarbon.  The invention further includes a process which comprises sulphonating an aromatic hydrocarbon with sulphur trioxide or oleum in the presence of liquid sulphur dioxide and treating at least part of the product comprising a solution of the sulphonic acid in liquid p  sulphur dioxide as above.  The distillation may be carried out under reduced pressure.  The residue obtained after removal of sulphur dioxide may be neutralized, preferably with caustic soda in aqueous solution and a portion recycled to the crude sulphonic acid solution in sulphur dioxide.  The crude sulphonation product on standing may form two layers, the upper layer containing the bulk of the sulphonic acid is treated according to the process of the invention and the lower layer consisting mainly of liquid sulphur dioxide with small amounts of dissolved sulphuric acid may be recycled to the sulphonation reaction.  The products obtained by sulphonating aromatic hydrocarbons such as the products of alkylating benzene or toluene with polymers, having 9-16 carbon atoms per molecule, of propene or butene may be recovered by the process.  In an example an alkylate of toluene with propylene tetramer is sulphonated in liquid sulphur dioxide with sulphur trioxide and the upper layer of product which separates is diluted with methylcyclohexane containing sodium sulphonate produced in the process.  The sulphur dioxide is evaporated off and after neutralizing the methyl-cyclohexane-sulphonic acid mixture with caustic soda the methyl cyclohexane is distilled off. Specifications 680,613 and 696,752 are referred to.
Patent GB-577647-A (GB)
Title: A process for applying a coloured pattern or design to a metal article
IPC: B44C1/22
Filed: 1944-03-21
Abstract: 577,647. Ornamenting metal surfaces. LEVY, F. March 21, 1944, No. 5248. [Class 93] A metal surface is etched, engine-turned or embossed and a transfer applied to the untreated raised portion. A protective lacquer such as a cellulose lacquer may then be applied.
Patent GB-819700-A (GB)
Title: Improvements relating to the production of stereotype printing plates
Inventor: DIXON-GREEN ANTHONY JOSEPH
IPC: B41C3/02
Filed: 1958-02-18
Abstract: 819,700. Printing surfaces. DIXON & CO. Ltd.. L. S. Feb. 18, 1958, No. 5255/58. Class 100(2) A method of producing a stereotype matrix comprises applying a layer of cellulose wadding with or without a paper backing sheet over the whole of the back of a flong layer and then moulding and compacting the composite mass against a forme by the application of heat and pressure. When a backing sheet is used the cellulose wadding is pasted to the flong layer and the backing sheet is pasted to the cellulose wadding prior to the application of heat and pressure, the latter being applied through a perforated plate and including means for absorbing moisture exuded through the plate. The pressure may be about half a ton per square inch of forme and the temperature about 250‹F. The cellulose serves to fill in blank spaces or depressions in the back of the flong.
Patent GB-1169489-A (GB)
Title: Control Mechanism, in Particular for Writing Implements.
Inventor: BROSS HELMUT
IPC: B43K24/08
Filed: 1968-02-01
Abstract: 1,169,489. Retractable ball-point pens. H. BROSS. 1 Feb., 1968 [4 Feb., 1967; 22 July, 1967; 14 Sept., 1967], No. 5282/68. Heading B6P. A rear push button actuated ball point pen has the push button 4 non-rotatably mounted in the housing with radially projecting cam elements 6 engaging in grooves 11 and 12 defined by longitudinal strip-shaped projections 9 and 10. The turn button 7 (which is mounted on the rear end of the ball point cartridge spring biased to the retracted position) has radially projecting control elements 8 provided with notches 17 which engage the ends of the stripshaped projections 10 in the projected position and the ends of strip-shaped projections 9 in the retracted position. Interaction of the cam faces on the elements 6, the ends of the stripshaped projections 10 and the control elements 8, when the push button is repeatedly depressed, causes the turn button to be rotatively stepped from the retracted to projected to retracted positions. Extensions 27 on the turn button 7 are pressed against the housing inner walls so that the turn button does not drop out from the housing when the ball-point cartridge is removed. Various embodiments are described and all have the radially projecting control elements 8 on the turn button 7 provided with notches 17. The longitudinal strip-shaped projections 9 may be dispensed with, in which case the radially projecting cam elements 6 on the push button may have a width equal to the spacing of the strip-shaped projections 10 (Figs. 12 and 13). Alternatively, two cam elements 6 may have a combined width equal to the spacing of the projections 10 (Figs. 6 to 11). In (Fig. 14) the rear end of the ball-point cartridge is mounted in the push button, passing through a hollow turn button 7, the turn button 7 being biased against the push-button by an additional spring (35).
Patent GB-867937-A (GB)
Title: Bowling ball lift mechanism
IPC: A63D5/02
Filed: 1960-02-15
Abstract: 867,937. Skittle alleys. BRUNSWICKBALKE-COLLENDER CO. Feb. 15, 1960 [Feb. 27, 1959], No. 5279/60. Class 132(2). Balls] 12 are lifted from a return track 14 located beneath a skittle alley bed 10 to a storage rack 11 at the players' end by a lift comprising two motor-driven friction-surfaced superimposed wheels 21, 25, (Fig. 2), the lower of which rotates faster than the upper, and which roll the balls up-arcuate rails 23, 28 respectively. Guides 42, 44 steady the balls as they enter the lift. In a modified form, Fig. 5, in which storage rack 52 lies behind the player, the superimposed wheels 60, 63 roll the balls up rails 62, 65 respectively disposed as shown, and rails 67, 68 divert the balls sideways from the lift on to the rack.
Patent GB-234201-A (GB)
Title: Welded hollow wall reinforcement
IPC: E04B1/41
Filed: 1924-03-01
Abstract: 234,201. Gibson, G. M. March 1. 1924. Double walls; reinforced block--work walls; wallties.-Wire cross-ties b for hollow walls are welded to longitudinal reinforcing members a and are adapted to lie within the vertical joints. of the wall so as to ensure close jointing of the bricks &c. The. longitudinal members lie between the courses on each side of the cavity d and U or V-shaped bends in the cross-ties b are disposed centrally of the cavity. Three longitudinal members a may be provided, as in Fig. 4, two of which lie in the thicker portion of the wall.
Patent GB-1135013-A (GB)
Title: Blind nut assembly
IPC: F16B37/06
Filed: 1966-02-07
Abstract: 1,135,013. Anchoring nuts. HI-SHEAR CORP. 7 Feb., 1966 [9 Feb., 1965], No. 5339/66. Heading F2H. A blind nut assembly comprises a tubular shank 11 having a head portion 19 and a reduced diameter nose portion 18 with a circumferential groove 20, and a nut 12 having a collapsible section 37 and a circumferential lip (40), Fig. 3, not shown, which is adapted to enter the groove 20 when a compressive force is exerted between the head and the engagement section to collapse the collapsible section 37 to form a bulge.
Patent GB-216921-A (GB)
Title: Improvements in or relating to the manufacture of high quality fuel from raw peat
IPC: C10G5/04
Filed: 1923-02-24
Abstract: 216,921. Linker, O. Feb. 24, 1923. Rotary-mould-table machines; moulding pulp. -Apparatus for charging an aqueous mixture of peat into filtering chambers under liquid pressure and subjecting the filtered mass in the chambers to additional mechanical pressure in several stages until the mouldings form bodies having densified surface layers and interiors of greater moisture content, comprises a rotary table 12 receiving step-wise motion from a main driving shaft 30 and having a number of filtering and moulding devices 13 the walls of which consist of filter bars or like elements. In the form shown twelve devices are operated in pairs for six working stages. Peat pulp is supplied under pressure through a conduit 21 communicating by means of a rotary distributing head 22 and hose connections 23 with a charging passage 18 for each filtering chamber. The upper end of each filtering chamber is closed by a supply chamber 15, releasably secured thereto by means of a threaded or other connection 15a during the first working stage and having spring retracted valves 16, 17, adapted to place the charging passages into communication with the filtering chamber for the second working stage by means of a roller 28 which co-operates with a cam race supported by a standard secured to the base plate 10 of the machine. The lower end of each filtering chamber is closed by a hollow plunger 14 having a head 14<a> composed of filter bars. After the peat has been subjected to the first draining action the table 12 is rotated to advance the filtering chamber to the next working stage whereat the valves 16, 17 are raised to stop the admission of peat and the plunger 14 is slightly raised by means of a push rod 34 operated from an eccentric 29 through the agency of an elastically suspended lever 31 and a link 33. A toothed pawl 37 holds the plunger in its raised position. To enable the plunger stroke to be regulated the push rod carries an adjustable head 34<a>. At the fourth stage the plunger is further advanced and held by a higher tooth on the pawl and at the fifth, the plunger is raised. by a pawl rod 40 to cause the drained moulding to lie with its lower face flush with the table the plunger being locked by a pawl 41. At the same time by means of a projection on the nut 15<c> striking a stationary projection the supply chamber 15 is released and raised from the filtering chamber to permit of the removal of the moulded block. At the sixth stage by means of a push rod 43 and lug 45 the pawls 37, 41 are released to cause the plunger to drop back on to an adjustable support 46 and the cycle is completed. An upper tier 24 revolving with the shaft 11 bears against rollers 26 carried by standards 25. The walls of the supply chambers may be made of filtering material.
Patent GB-822953-A (GB)
Title: New derivative of dihydroxyketocholenic acid and process for its production
IPC: C07J9/00
Filed: 1957-02-18
Abstract: The invention comprises 3a -hemi-succinoyl-oxy - 11 - hydroxy - 12 - keto - D 9,11 - cholenic acid and physiologically acceptable salts thereof, and the preparation thereof by treating 3a -11-dihydroxy - 12 - keto - D 9,11 - cholenic acid dissolved in a solvent with a succinic anhydride in the presence of a condensation agent which may be a tertiary organic base such as pyridine.  The salts may be derived from organic or mineral bases, the disodium salt being particularly referred to.  3a ,11 - Dihydroxy - 12 - keto - D 9,11 - cholenic acid is prepared by the hydrolysis of any suitable functional derivative thereof, e.g. methyl 3a  - acetoxy - 11,12 - diketo - cholonate, 3a  - formyloxy - 11,12 - diketo - cholanic acid or 3a  - hemi - succinyloxy - 11,12 - diketo-cholonic acid. Specification 810,009 is referred to.ALSO:A therapeutic composition in the form of a capsule, granule, pastille or lozenge contains as the active ingredient a physiologically acceptable salt of 3a -hemi-succinyloxy-11-hydroxy - 12 - keto - D 9,11 - cholenic acid. The salt may be derived from an organic or inorganic base, the disodium salt being particularly referred to.
Patent GB-365838-A (GB)
Title: Light-sensitive cell
IPC: H01G9/20
Filed: 1931-02-20
Abstract: 365,838. Light-sensitive cells. ARCTURUS RADIO TUBE CO., 720, Freyling- huysen Avenue, New Jersey, U.S.A. Feb. 20, 1931, No. 5458. Convention date, March 25, 1930. [Class 40 (iii).] A lightsensitive cell construction comprises a casing containing an electrolyte in contact with two electrodes, one of which is sensitive to light and is mounted adjacent and facing a transparent window formed in the casing. An electrolyte, such as a solution of cobalt chloride and glacial acetic acid, is contained in a shallow casing 10 closed by a transparent window 25 mounted between washers 26, 28 and secured to the casing by a screwed ring 16. The light-sensitive electrode 34, which may have an etched surface of cuprous oxide, has an extension 42 on which is threaded a terminal 30 and is mounted on an insulating plug 40 with an extension 41 fitting into a hole in the casing. The second terminal member 50 is attached directly to the casing forming the second electrode by a screw 56. The height of the ring 16 is arranged so that the lightsensitive electrode is shielded from light when the cell is placed in an inverted position. The back of the electrode member 34 and the insulated spacing block 40 may be coated with insulating paint.
Patent GB-397197-A (GB)
Title: Improvements in or relating to automatic sheet feeders for use on printing machines
IPC: B41F1/30
Filed: 1932-02-24
Abstract: 397,197. Printing-machines; feeding sheets. HOLLINGS, H., 18, Malvern Street and HOLLINGS, E., 21, Elswick Row, both in Newcastle-on-Tyne. Feb. 24, 1932, No. 5526. [Classes 100 (i) and 100 (ii).] Sheets are fed to a platen printing-machine from a pile 2 by grippers 3, 4 on oscillating arms 1 which are adapted to reverse the sheet before delivering it to the open platen 39, so that the undersides of the sheets on the pile 2 are presented for printing. The printed sheet is delivered by a reciprocating suction nozzle 48 which act on the same edge of the sheet as the feed grippers. The sheets are separated from the pile by suction nozzles 40 mounted on arms 41 pivoted to the end of a lever arm 43 pivoted at 13 and operated by a cam on the shaft C. The inclination of the arms 41 is controlled by an oscillating lever 12 which is also operated from the cam shaft C and serves to operate a lever 10, 11 for controlling a pivoted incline 6 which opens the grippers 3, 4 to receive the separted sheet. The incline 6 acts on a roller 8 and moves the outer jaw against the action of a spring 5. Separation of the sheet is facilitated by a slight buckling thereof against the front pile guide 45. The incline 6 is rocked out of the path of the jaws 3, 4 and the grippers seize the sheet and carry it between known feeler devices 46, 47. The grippers stop momentarily, and when the platen 39 opens, the grippers continue their motion and the turning over of the sheets is assisted by air blasts from a nozzle 49. The arm 1 is oscillated by a pinion 31 and a rack 32 on a slotted link 33 which is reciprocated by a lever 34 oscillated by a cam on the shaft C. The grippers are opened to deliver the sheet to the platen by a pivoted incline 7 which is also actuated by cam-and-lever mechanism from the shaft C. The released sheet falls bv gravity on to the platen and up to the usual front lays. For feeding stiff sheets the grippers 3, 4 are lipped towards each other, as shown to permit bending of the sheets as the arm 1 descends. The inner jaw 3 is rigidly secured to a pivoted base 23 normally pressed against the arm 1 by a spring 25, but the base is moved away from the arm by the action of an abutment 29 on a roller 28 on a rod 27 fixed to the jaw base 23. The jaws are thus tilted in accordance with the inclination of the platen.
Patent GB-559392-A (GB)
Title: Improvements in or relating to building construction
IPC: E04B2/12
Filed: 1942-04-27
Abstract: 559,392. Facing tiles. SAUNDERS, F. G. April 27, 1942, No. 5622. [Class 87 (i)] Ferro-concrete walls &c. are faced by the flat-tiles 1 having a flange 2 at one or both ends adapted to be embedded in the concrete and having notches or recesses 3 to receive longitudinal reinforcement wires or rods. The horizontal edges may be grooved and tongued to interlock.
Patent GB-197099-A (GB)
Title: Improvements in photographic printing machines
IPC: G03B27/02
Filed: 1922-02-25
Abstract: 197,099. Sankey, E. Feb. 25, 1922. Printing-apparatus with bordering and vignetting masks, negatives, and apparatus.-In a bromide printing-box, means for setting the position of the negative so that the picture will be printed in correct relationship to the sides of the printing paper, comprises an upper frame c secured to the top of the light chamber, a negative carrier i having depending lugs serving as nuts for adjusting screws k which abut on the sides of the frame c, and clamps l. To set the printing paper an adjustable plate n is provided one end of which is slidable in a, slot in a guideplate m which has a rib engaging a slot f in the frame c. The mask r is secured bv a bar s and nuts t so that it does not obstruct the adjustments of the negative carrier i. Adapter plates may be fitted into the carrier i for negatives of less size than the aperture in the carrier i, and the opening in the negative carrier i may be fitted with a permanent sheet of glass the face of which is below the face of the negative carrier to a depth corresponding to the thickness of a negative so that a metal sheet having an aperture to suit any particular negative may be fitted to the apparatus.
Patent GB-1220876-A (GB)
Title: A down pipe construction
Inventor: LEGG MONIQUE
IPC: E03C1/12
Filed: 1968-02-05
Abstract: 1,220,876. Centrifugal separators. M. LEGG and G. RICHARD. 5 Feb., 1968 [6 Feb., 1967; (4) 7 Feb., 1967; 8 Feb., 1967; 13 Feb., 1967; (3) 9 March, 1967; (2) 9 Aug., 1967], No. 5712/ 68. Heading B2P. [Also in Division F2] A flow-down pipe construction for evacuating effluent comprises a main pipe 1 and a branch pipe 8 for admitting at least a portion of the mixture tangentially into the main pipe so that it will flow helically down the pipe 1 as an outer layer surrounding an air column. As shown, effluent from the branch pipe 8 spirals downwardly in a layer adjacent the inner wall of the pipe which is ventilated through a central vortex 10, the gyratory motion of the effluent being maintained by one, or more, oblique ramps 18. The descent of the effluent is braked by a friction surface 5 on an enlarged portion 5 of the pipe 1 and is cut by a ramp 22 the effluent then flowing off normally in a pipe 26 leading to a sliver. At a connection some distance along the length of the main pipe 1 fluid is admitted tangentially into the pipe 1 by means of a connection piece (5), Figs. 4-6, not shown, the effluent from the connection piece (5) spiralling downwardly with that debounded from the main pipe section (1). The connection piece (5) is also provided with secondary inlet orifices (13) and associated baffles (15). Ramps (18), with leading edges (19) for cutting effluent solids, are formed on the inner wall of the main pipe (1).
Patent GB-946011-A (GB)
Title: Display stand
Inventor: REMFRY CHARLES ANDREW
IPC: A47F7/14
Filed: 1962-02-15
Abstract: 946,011. Display stands. FINSPA ENGINEERING CO Ltd. Nov. 20, 1962 [Feb. 15, 1962], No 5786/62. Headings A4H and A4W. A display stand is constructed from sheets 10 of peg-board secured together along their adjacent edges by metallic strips 11 of double channel section to form a prism or pyramid. The stand is supported on frame 13, 14 which is rotatably mounted on a mobile base 16 and has a sheet metal cap 12.
Patent GB-1502857-A (GB)
Title: Mixing of liquids
IPC: B60S3/00
Filed: 1975-02-11
Abstract: 1502857 Valves BRITT TECH CORP 11 Feb 1975 [11 Feb 1974] 5797/75 Heading F2V [Also in Division B1] A flow controller has a mixing chamber 55 the outlet 9 of which is connected to a pump which draws in cleaning fluid through the inlet(s) 10 and/or 11, and water through the inlet 8, and between the valve member 48 and seat 64. The mixing chamber 55 is in communication with the underside of the diaphragm 35, which under the control of springs 39, 63 will thus react to any variation in downstream pressure to move the valve member 48 in a direction to maintain the water flow constant.
Patent GB-452384-A (GB)
Title: Improvements in shock dampers
IPC: F16F7/04
Filed: 1935-02-22
Abstract: 452,384. Shock - absorbers. LESLIE, I. A., Highfield Lawn, Highfield Road, Derby. Feb. 22, 1935, No. 5809. [Class 108 (iii)] A vehicle shock-absorber in which means are provided for increasing the damper loading automatically dependent upon the extent of movement between the wheel-axle and the chassis-frame includes means comprising two members which are urged to oscillate in opposite directions with the relative oscillation of the wheel-axle and the chassis-frame and the contrary forces thereby induced are transmitted to a member connected to the damperloading means to hold the latter from movement throughout the return movement of the wheel in order to maintain the increased loading. As shown, the loading between the plates of a scissors type of vibrationdamper is varied by means of a screw-threaded spindle co-operatingwith a reciprocally-threaded. sleeve. The spindle carries a lever f and is adjusted on approach of arms b, b<1> by a link m<3> pivoted to the link b and acting through a lever k and a link k<2>. The link m2 is connected with provision for lost motion with the lever k which is carried on a pin g. The arm b<1> is made in two parts b<1>, h connected together by pins g, g<1>. The link m<2> may be normally radial from the centre of the pin f or may be as shown in dotted lines. The tendency of the arm b<1> to hinge about the pin g holds the pin g<1> against rotation and consequently the spindle is held in its adjusted position during the return movement. In a modification, a one-way roller clutch is fitted between the lever k and the link m<2>. The invention may be applied to hydraulic shockabsorbers.