baber/WOPTO huggingface dataset:
Patent GB-1399011-A (GB)
Title: Ladle gate valve
IPC: B22D41/40
Filed: 1972-05-31
Abstract: 1399011 Gate valves for foundry ladles USS ENGS & CONSULTANTS Inc 31 May 1972 [7 June 1971] 25545/72 Heading F4B A bottom pour valve for a foundry ladle V comprises a stationary plate 9 fitting in a recess in a valve mounting plate 66 and co-operating with a sliding plate 12 movable in a frame 13 and pressed against the plate 9 by a number of spring loaded pressure pads 15 arranged round the outlet nozzle 22 of the valve plate 12 so as to provide sealing pressure over a zone surrounding the outlet of the vessel. The spring pads 15 are mounted within a carriage 14 sliding in the frame 13 and are cooled by air from a passage 17 extending through the hydraulic operating cylinder 16 to chambers 75. The upper face of the stationary plate 9 has a groove co-operating with the end of an outer sleeve 6 surrounding the ladle nozzle to prevent leakage, and the hydraulic piston arrangement is detachable from the valve carriage. A lower fixed spatter shield 24 fixed to the frame 13, and a spatter shield 25 fixed to the valve 12 and sliding with it protect the underside of the valve. The valve assembly may be secured to the ladle by a hinge toggle arrangement 34 and a latch toggle arrangement 33, so that the frame 13 and carriage 14 can be swung away from the ladle to allow replacement or reversal of the stationary plate 9, and replacement of the sliding plate 12, Figs. 4 and 7. In a modification. Fig. 15, the sliding plate 12 moves between the stationary plate 9 and the top 48 of an extended nozzle 49, the spring pads acting on the top 49 of the nozzle.
Patent GB-1393133-A (GB)
Title: Carbon disc processing technique to retard oxidation
IPC: C04B35/83
Filed: 1972-06-01
Abstract: 1393133 Oxidation resistant carbon discs GOODYEAR TIRE & RUBBER CO 1 June 1972 [29 June 1971] 25669/72 Heading C1A [Also in Division F2] In preparing a carbon brake disc 22, the following steps are used (a) a disc blank is formed of carbon material (b) the disc blank is impregnated with resin; (c) the impregnated blank is cured, carbonized and/or graphitized by baking at a controlled temperature; (d) steps (b) and (c) are repeated until the density of the disc is sufficient to permit machining; (e) the blank is machined to its desired shape; (f) at least once the machined disc is impregnated with resin and baked to cure, carbonize and/or graphitize to form a residue on the surfaces of the machined disc and (e) machining the wear surfaces, e.g. 28 of the disc to their final dimension removing the residue only from these surfaces to give the desired brake disc. Steps (b) and (c) are preferably repeated until the density of the disc is 40 to 80% of the eventual desired density of the completed disc. Surfaces 30, 32 and 34 of the disc retain the residue as an oxidation resistant coating. Wear surfaces 28 are initially machined, e.g. in step (e) 0À030 inch/ surface oversize to allow the final machining. The baking steps prior to machining step (e) preferably include low temperature and high temperature baking steps.
Patent GB-873843-A (GB)
Title: Improved bow for stringed musical instruments
IPC: G10D3/16
Filed: 1957-08-14
Abstract: 873,843. Bows for stringed instruments. LUCCHESI, L. Aug. 14, 1957 [Sept. 21, 1956], No. 25683/57. Class 88 (2). In a mechanically operated bow for violins &c. two endless belts B of hair, nylon thread or tape run on pulleys which are mounted in supports K and are driven in opposite directions by an electric motor F. The speed of the motor may be controlled by a pedal-operated rheostat H. In one arrangement, the shaft M of a pulley C is coupled to the motor by a flexible shaft G and is coupled by reversing gears to a second pulley D which rotates in the opposite direction. The gearing, Figs. 6, 7 (not shown) and 8, is housed within the pulleys. In another arrangement, Figs. 9, 10, the flexible shaft is connected to a shaft T carrying a bevel gear U engaging separate gears V integral with the pulleys W.
Patent GB-1456524-A (GB)
Title: Brushes
IPC: A46B3/00
Filed: 1973-05-30
Abstract: 1456524 Brushes IMPERIAL CHEMICAL INDUSTRIES Ltd 17 May 1974 [30 May 1973]  25755/73 Heading A4K A brush comprises a plurality of units each comprising a bundle of filaments encased in a thermoplastics material sheath 2 and having an unsheathed end portion. The filaments are sealed to the sheath at the sheathed end of the unit. The brush may comprise twelve units secured to a wooden former 7, which also forms the handle, by a ferrule 8 and nails 9. The filaments may be regenerated cellulose, metal, glass or polyterephthalate, nylon or polyolefin. The sheath may be of polyethylene, pvc, nylon or a linear polyester.
Patent GB-1364590-A (GB)
Title: Chains for mechanical variable speed gears
IPC: F16G5/18
Filed: 1972-06-02
Abstract: 1364590 Chains SOC ANON P I V 2 June 1972 [9 June 1971] 25771/72 Heading F2Q. A chain for a variable speed gear comprises link plates 2 joined by pivot pins 4, partly open tunnel-shaped envelopes 7 inserted in openings in the plates 2, lamellar elements 13 located within each envelope 7 and being free to slide axially therein, and a lock element 17 retained in position by each envelope 7 and being provided with teeth 20 engaging the gaps between the link plates 2. A modified form of locking plate 21 is shown in Fig. 5 and consists of two sets of teeth so that it will be suitable for all the links.
Patent GB-760543-A (GB)
Title: Improvements in or relating to naphtha sweetening process
Inventor: SORG LEONARD V
IPC: C10G27/04
Filed: 1954-09-06
Abstract: Cracked, sour raw naphtha, which has not received any chemical treatment to remove H2S and cresols, is purified by adding 2-20 pounds of a phenylene diamine per 1,000 barrels of naptha, contacting the mixture with an aqueous solution containing 10-50 per cent of an alkali metal hydroxide, in the presence of free oxygen in an amount which is the stoichiometric equivalent to the mercaptan sulphur in the naphtha, and separating the naphtha from the aqueous phase. Phenylene diamines referred to are N, N1-di-secondary-butyl, N, N1-di-iso-propyl, N, N1-di-amyl, N, N1-dihexyl, N-propyl-N1-butyl, N-butyl-N1-amyl and N-hexyl-N1-octyl phenylene diamines.  Air or oxygen itself may be used to supply the free oxygen.  Alkalis mentioned are sodium and potassium hydroxides. The raw naphtha may be derived from thermal cracking or reforming or catalytic cracking. Examples are given of the treatment of a naphtha boiling between 130 DEG  and 400 DEG F. derived from the catalytic cracking of a gas oil, and of mixtures of this naphtha with a mixture of virgin and thermally cracked naphthas.
Patent GB-951294-A (GB)
Title: Improved process for the recovery of cyclohexane
IPC: C07C203/00
Filed: 1962-07-05
Abstract: The reaction product of nitric acid and cyclohexane is treated with methanol before distillation, so as to convert the cyclohexylnitrite present into cyclohexanol. Specification 938,848 and U.S.A. Specification 2,343,534 are referred to.
Patent GB-199997-A (GB)
Title: An improved device for the removal of internal combustion engine valves
IPC: B25B27/26
Filed: 1922-09-26
Abstract: 199,997. Morgan, G. J., and Morgan, R. M. Sept. 26, 1922. Prizing-tools.-A device for facilitating the removal of the valves of internal-combustion engines comprises two separate plates a, b adapted to be inserted between the tappet heads and valve spring cups of a pair of adjacent valves, and to be prized apart by means of a flat key, screwdriver blade or like tool inserted between them. To facilitate the insertion of the tool, a slot f may be formed in both plates, or in the lower plate only, and the lower surface of the slot may be serrated. Both plates have transverse openings to -engage the valve spindles and the plate a has annular seatings g for the valve cups. Similar annular seatings h may be provided in the plate b for the tappet heads. The lower surface of the plate a may have transverse grooves for the passage of the cotters during their removal.
Patent GB-518929-A (GB)
Title: Improvements in machines for filling valved bags with cement or like powdered material
IPC: B65B1/18
Filed: 1938-09-06
Abstract: 518,929. Bag - filling apparatus. BATES INTERNATIONAL BAG CO. Sept. 6, 1938, No. 26018. Convention date, Sept. 30, 1937. [Class 78 (i)] [Also in Group XVIII] In apparatus for filling valved bags with cement &c. on weighing apparatus wherein the material is fed from a hopper 70 to a shoot 13 by a rotary spider' 12 and is delivered by a rotary feeder 16 to a spout 17 on which the bag mouth is arranged, the blades 71' of the spider 12 are inclined rearwardly so as to have a trowelling effect on the material in the shoot, thereby excluding air and ensuring, a more uniform feed. The spider is of greater diameter than the feeder and rotates in a cylindrical casing, and the shoot increases slightly downwardly in the vertical plane of the spider. The spider may feed several side-by-side shoots and feeders. The bag supporting spouts 17 are carried by frames 18 suspended from pivoted beams 20 carrying counterweights 24 and operating between adjustable stops 52, 53. The bags reston supports 30 at the outer end of the frames 18 whose swinging is controlled by rods 40 mounted by pivots 43, 44 with dust proof covers. The spider and feeders are driven by gearing and belt from a driving shaft, and delivery is effected on opening of a valve 50 by a hand lever 37, a trip mechanism operating when the bag is filled to close the valve, release the clamp 56 of the bag mouth and allow the support 30 for the bag to tilt ready for its removal. Suction is provided for drawing dust into the machine casing, which is provided with hinged flaps 76 and shoots 75 to direct the dust. The Specification as open to inspection under Sect. 91 describes also a packing between the housing and the bearings of the spider and feeder shafts, such'packing 80, Fig. 3 (Cancelled). being held betwen flat plates 81, 82 compressed between jaws 83, 84 mounted on a spindle 87 screwed to permit of adjustment. Further the end of the housing is cut away where the shafts pass through to provide a recess for escaped material to fall away. This subject-matter does not appear in the Specification as accepted.
Patent GB-761617-A (GB)
Title: Improvements in and relating to the generation of steam power
IPC: F22B21/34
Filed: 1954-09-08
Abstract: 761,617. Turbine plant. FOSTER WHEELER, Ltd. Sept. 8, 1954 [Sept. 8, 1953], No. 26044/54. Class 110 (3). [Also in Group XIII] A steam power-plant comprises a boiler 11 including an economizer 13, steam-generating tubes 14, superheater tubes 15 and reheater tubes 16. In a first operating circuit, saturated steam from a steam and water drum 12 passes to the superheater 15 whence superheated steam flows to the high-pressure stage 21 of a turbine 22 driving an electric generator 31, the exhaust from the high-pressure stage flowing through the reheater 16 and returning to the turbine for flow through the intermediate and low-pressure stages 25, 27 which discharge to a condenser 29 a feed pump 17 returning the condensate to the drum 12 through a feed-water heating system employing steam bled from the three turbine stages and the economizer 13. In a second operating circuit steam is generated in tubes 14 at super-critical pressure, water being drawn from drum 12 by a pump 33 and delivered to the tubes 14 at a pressure of, say 5000 lbs. per sq. in. The steam passes from the tubes to a distributing valve 53 which apportions the flow between turbines 37, 60 driving pump 33 and coupled compressors 64a, 64b respectively according to the prevailing load on the unit. In the turbines the steam is expanded to sub-critical pressure and flows as wet steam through a pipe 50 to the drum 12 and thence to the superheater, the residual heat in the wet steam evaporating part of the water in the drum. In modifications, turbine 60 is mounted on the same shaft as turbine 22 to add its power directly thereto or drives an electric generator whose output is coupled to that of generator 31.
Patent GB-587065-A (GB)
Title: Improvements in optical pyrometers of the disappearingfilament type and like instruments
IPC: G01J5/56
Filed: 1945-10-08
Abstract: 587,065. Pyrometers photometers. HITCHMAN, D. G. I., and SCHOFIELD, F. H. Oct. 8, 1945, No. 26122. [Classes 97 (i) and 97 (iii)] [Also in Group XXXV] The comparison lamp P of a disappearing filament pyrometer or similar instrument for measuring brightness is arranged in the diagonal of a self-regulating bridge circuit so that the current therethrough is maintained constant notwithstanding variations in the voltage supply B. The arms of the bridge are formed by two identical control lamps L, having voltage-current characteristics as shown in Fig. 2, and two resistances m each equal to the tangent of the angle between the straight portion T1, T2 of the curve in Fig. 2 and the current axis. With this arrangement the current through P will be independent of the supply B so long as the lamps L are operating between the points T1, T2. The resistance s is chosen so that current and voltage corresponding to the point T2 are not exceeded with the battery B giving maximum voltage. The lower limit T1 may be readily judged by inspection if the lamps L are chosen so that the point T1 corresponds with a brightness as near as possible to the visible limit. If, however, the point T1 corresponds with a brightness above the visible limit, the lamps may be inspected through an appropriate absorption screen, or an optical system may be provided to enable the brightness of the lamp L to be measured by comparison with the lamp P. A variable resistance r graduated to read temperature direct may be adjusted until the filament of the lamp P is of the same brightness as the observed object. Alternatively, the resistance may have one of a number of predetermined values corresponding to several ranges of brightness, the filament of the lamp P being then made to disappear by using an optical wedge. The effect of air temperature on the characteristics of the lamps L may be compensated by using resistances m and r with appropriate temperature coefficients of resistance. If the lamps L are not identical, effective equality may be achieved by using appropriate resistances in series and/or parallel. In a modification, only one control lamp is used.
Patent GB-857358-A (GB)
Title: Stabilized halogen-containing synthetic resins
IPC: C08K5/524
Filed: 1958-08-14
Abstract: Synthetic resin compositions containing a homo- or co-polymer of a vinyl halide are stabilized against the deteriorative effects of heat and/or light by the inclusion of a compatible chloro-ethyl phosphite of the formula:  <FORM:0857358/IV(a)/1> where x and y represent 0 or 1; x + y = 1 or 2; R and R1 represent aliphatic, cycloaliphatic or aromatic radicals containing no halogen atoms; and Ra, b, c, d represent hydrogen atoms or aliphatic, cycloaliphatic or aromatic radicals. Co-monomers exemplified are vinyl acetate and dibutyl maleate. The phosphite stabilizers may be used in conjunction with other stabilizers such as metal salts of organic acids, metallic phenolates and diorgano tin compounds e.g. salts of Cd, Zn, Pb, Sn, Ba, Sr and Ca such as cadmium benzoate or di (t-butylbenzoate), and barium and calcium laurates; Cd, Zn, Pb, Sn, Ba, Sr and Ca phenolates of octyl-, nonyl-, oleyl- and lauryl-phenol dibutyltin-S,S1-bis-iso-octyl mercaptoacetate and dibutyltin-S,S1-bis-lauryl mercaptide.  The compositions may also contain plasticisers, e.g. dioctyl phthalate or dibutyl sebacate. Many examples of suitable phosphites are given and their preparation is described (see Group IV(b)).ALSO:Chloro-ethylphosphites of the formula:  <FORM:0857358/IV(b)/1> Where x and y are 0 and 1; x + y=1 or 2; R and R1 represent aliphatic, cycloaliphatic or aromatic radicals containing no halogen atoms; and Ra, b, c, d represent H or aliphatic, cycloaliphatic or aromatic radicals are used as light stabilizers for vinyl halide resins (see Group IV(a)).  The compounds may be prepared by reacting PCl3 with one or two parts of an alcohol or phenol and then reacting the chlorine-containing product with an epoxy compound.  An extensive list of suitable epoxy compounds is given, many of which contain substitute groups such as esters, alkoxy, acyloxy, haloaryloxy, phenone and ureido. Preparative details are given for dinonylphenyl-2-chloropropropyl phosphite and didecyl-2-chloropropyl phosphite.  Many other compounds are mentioned.
Patent GB-1517535-A (GB)
Title: Mixing device
IPC: B28C5/18
Filed: 1975-06-20
Abstract: 1517535 Mixing apparatus K MORAN and D A M ELSTON 20 June 1975 26237/75 Heading BIC A mixer having a rotatable drum 10 with an external ground-contacting tire 15, a mounting 12 having wheels 13, and a handle 14 by which it may be pushed, or tilted for discharging, has a motor 29 to drive the drum or the wheels. The motor is preferably a mains reversible electric motor but may be an I.C. engine and may have a reversible drive train. A support 40 may be provided having rollers 41, 42 on which the drum may rest so that it can be rotated by the motor without driving the mixer along the ground.
Patent GB-400603-A (GB)
Title: Improvements in, and relating to, coin freed vending machines
Filed: 1932-02-22
Abstract: 400,603. Coin-freed apparatus. BUTLER, W. H., Lea Brass Works, Lea Road, Dronfield, near Sheffield. Feb. 22, 1932, No. 26239/33. Divided on 398,832. [Class 27.] Testing coins; clearing-apparatus, automatic.-In coin-freed vending-machines of the kind having an inclined coin-traversing channel formed of a stationary and a movable member and provided with a magnet for arresting iron or steel discs &c., the stationary member 16, which may be an integral extension of the coin drop plate 3, and a movable member 17 pivoted at 18 to the member 16, are so positioned that the inclined coin-traversing channel formed by them is located below the coin-insertion slot 4 and to one side thereof, the movable member 17 being suspended so that it lies by gravity in abutment with the stationary member 16, which is inclined across a vertical plane through the pivot 18, the movable member being actuated by a slot-obstruction member 28 displaced by the insertion of a coin in the slot 4, whereby any impeded disc is thrown out of the coin-traversing channel. The member 28 is pivoted at one end and provided at its free end with a suspended cranked bar 17a, engaging the movable member 17. A leg 20 on the member 17 passes between the ends of a magnet 19, from which it is adapted on outward movement to detach iron &c. discs, which fall into a return shoot. Small discs fall through an opening 22.
Patent GB-449240-A (GB)
Title: Method of regulating radio sets and the like
IPC: H01F21/08
Filed: 1934-09-13
Abstract: 449,240. Electric condensers. KRAMOLIN, L. L. DE, Gross -Glienicke, Kladow, Berlin. Sept. 13, 1934, Nos. 26310, 26311, 26312, and 26313. Convention dates, Oct. 23, 1933, Nov. 10, 1933, March 5, 1934, and March 14, 1934. Drawings to Specification. [Class 38 (ii)] [See also Groups XL and XXXVI] The Specification as open to inspection under Sect. 91 refers to the tuning of an oscillatory circuit by varying the D.C. potential applied to a condenser having a dielectric of Seignette salt or having the mechanical characteristics of an electrostatic telephone instrument. This subject-matter does not appear in the Specification as accepted.
Patent GB-813625-A (GB)
Title: Improvements in or relating to the hardening of cellulose acetate precipitates
IPC: C08B3/22
Filed: 1955-09-15
Abstract: <PICT:0813625/IV (a)/1> <PICT:0813625/IV (a)/2> <PICT:0813625/IV (a)/3> A process for hardening cellulose acetate immediately after continuously precipitating it from solution comprises forming a continuous stream of a slurry of the freshly precipitated acetate in the precipitating medium, continously dividing this stream into successive separate batches, and then passing these separate batches continuously and successively through a hardening zone while maintaining each batch substantially separate from the succeeding batch.  This process may suitably be carried out in a cylindrical vessel mounted for rotation about its horizontal longitudinal axis and having an inlet at one end, an outlet at the other, and a helical vane having a number of convolutions of uniform pitch mounted in the vessel and adapted on rotation to divide material entering and passing through the vessel to the outlet at a constant rate into separate equal batches.  As shown, a hollow cylindrical tank 11 carries a circumferential ring gear 14 driven by gear 21 which causes the tank to rotate.  Within the tank is provided a continuous helical vane 22 which makes a number of uniform convolutions along the length of the tank and the outer edge of which is welded to the wall of the tank throughout its length.  The central part of the vane is open, the inner edge 24 of the vane also forming a helix of uniform diameter and pitch along the length of the vane.  At the discharge end of the tank is provided a second helical vane 32, the external and internal diameters of which are the same as those of the first vane 22, though this second vane makes only one complete convolution and occupies a position midway between adjacent convolutions of the first vane 22.  In operation, the freshly precipitated cellulose acetate suspension in dilute acetic acid is fed continuously into the tank by means of pipe 29.  As the tank rotates the material is divided up into separate batches by vane 22, and each batch moves towards the far end of the tank.  Before reaching the outlet end of the tank, which is frusto-conical in shape, each batch is divided again in two by the action of vane 32, after which one complete rotation serves to discharge each divided batch through outlet opening 38, the diameter of which should be greater than the diameter of the inner edge of helical vane 22.  The helical devices ensure that each batch passes through the hardening tank 11 with comparatively little variation in the time of passage. Specifications 783,504 and 813,626, [Group XXX], are referred to.
Patent GB-168787-A (GB)
Title: Improved means for facilitating the teaching and practice of golf
IPC: A63B69/36
Filed: 1920-09-16
Abstract: 168,787. Thorp, H. T., Thorp, F., and Thorp, C. Sept. 16, 1920. Golf practising and teaching appliances.-An appliance for practising and teaching golf comprises a golf ball support situated above a mirror adjustable on a universal joint, so that the player in looking at the ball may see in the mirror the image of his head and thus detect head movement during a stroke. As shown in Fig. 2, the mirror f is adjusted about a ball-and-socket joint g by means of a handle h projecting from the casing, and the ball a is supported on a leather piece c secured to the lid d.
Patent GB-1294418-A (GB)
Title: Method of preparing substituted alkali metal amides
Inventor: LAMBERT IRMA
IPC: C07F1/06
Filed: 1971-04-19
Abstract: 1294418 Alkali metal amides COMMISSARIAT A L'ENERGIE ATOMIQUE 19 April 1971 [17 April 1970] 26588/71 Heading C2C A mono- or disubstituted alkali metal amide is prepared by preparing a solution of the unsubstituted alkali metal amide MNH 2  in liquid ammonia, adding a primary or secondary amine to precipitate the MNH 2 , and heating while eliminating gaseous ammonia. The amine is preferably of formula RR<SP>1</SP>NH, where R and R<SP>1</SP> are C 1-6  aliphatic radicals or aromatic (e.g. phenyl or benzyl) or R<SP>1</SP> can be hydrogen. The amine can be used in excess, which can be eliminated with the ammonia or not as desired. Additional amine can be added during the process to compensate for amine distilled off. 'Examples prepare potassium dimethylamide, caesium dimethylamide, sodium diethylamide and potassium methylamide.