baber/WOPTO huggingface dataset:
Patent GB-345970-A (GB)
Title: Manufacture of plastic masses
IPC: C08B3/16
Filed: 1929-09-26
Abstract: Lacquers are prepared from primary mixed cellulose esters containing both acetyl radicles and one or more radicles derived from fatty acids containing 3-5 carbon atoms, which esters have been made by a basic process.  The esters in question have a high resistance to water, examples being cellulose acetate--propionate and acetate-butyrate; for use as a lacquer or impregnating composition the latter is dissolved in acetone.ALSO:Cellulose carboxylates, processes for making filaments and films from.-Primary mixed cellulose esters containing both acetyl radicles and one or more radicles derived from fatty acids containing 3-5 carbon atoms, which esters have been made by a basic process such as that of Specification 291,360, [Class 2 (ii), Cellulose &c.], are used for working up into plastic masses, and for the manufacture of films for photographic and other purposes, artificial threads, lacquers, coatings, impregnating materials, electric insulating materials and safety or reinforced glass.  The esters in question are distinguished by their resistance to water.  Filling materials and other additions may be incorporated, in the compositions, which may also contain other cellulose derivatives.  In one example, a cellulose acetate-propionate is made by heating to 110-120 DEG  C. dry cotton or paper pulp, acetyl chloride, propionyl chloride, pyridine bases and chlorobenzene; the ester, without being subjected to hydrolysis, is dissolved in alcohol-benzene-acetone, and the solution dry spun into threads which have a high wet tenuity and are suitable for covering electric cables.  In a second example, a cellulose acetate-butyrate is made by a similar process, is dissolved in acetone, and the solution used as a lacquer or impregnating solution or worked up into films of good stability and resistance to hot mineral oils, and therefore suitable for electric insulation; or a solution of the ester in alcohol-benzene-acetone and to which diethylphthalate has been added, may be used for making films for photographic purposes.ALSO:For the manufacture of plastic masses there is used primary mixed cellulose esters containing both methyl radicles and one or more radicles derived from fatty acids containing 3-5 carbon atoms, which esters have been made by a basic process. The esters in question are distinguished by their resistance to water, suitable examples being cellulose acetate-propionate and acetate-butyrate.  Filling materials and other additions may be incorporated in the compositions, which may also contain other cellulose derivatives.
Patent GB-925612-A (GB)
Title: Process for stabilising aromatic polymers
IPC: C08F220/44
Filed: 1959-08-26
Abstract: Styrene-acrylonitrile copolymers are stabilized with 2-hydroxypropylamines of formula <FORM:0925612/IV(a)/1> wherein R is alkyl, aryl, alkenyl, hydroxyalkyl, amine, diamine or polyamine (up to 3 H attached to N may be replaced by -CH2-CHOH-CH3); R1 is H or R; and R and R1 are the same or different (but must be different when R is CH3-CHOH-CH2).
Patent GB-1406362-A (GB)
Title: Flying shear
IPC: B23D25/06
Filed: 1973-06-20
Abstract: 1406362 Flying shear NIPPON STEEL CORP 20 June 1973 29247/73 Heading B3 A pendulum flying shear comprises an upper blade holder 21 having a downwardly extending arm 26 at each side in which a vertically movable lower blade holder 31 is guided and which are mounted in a frame 11 to allow oscillation of the holders as a unit, the upper holder being constrained to move in a rectilinear path parallel with the feed direction during such oscillation and to contact the frame through intermediate members. As shown, Fig. 2, portions 34 of the holder 31 run in grooves 27 in arms 26, rollers 24 on the upper holder run on horizontal ledges 16 on the frame and the intermediate members, which transmit shearing reaction to the frame, are rollers 25. The rollers 25 may be replaced by sliders and a spring or a hydraulic cylinder may act on the upper holder to constrain it to move horizontally instead of the rollers 24 and ledges 16. The blade holders are oscillated, when the passage of a predetermined length of stock has been detected by a measuring roller (81) Fig. 6 (not shown), by a hydraulic cylinder (41), Fig. 3 (not shown), acting on the upper portion of the upper holder. The lower ends 28 of the arms 26 are forked and slidingly embrace blocks 52 rotatable on a shaft 51 to accommodate the rectilinear movement of the upper holder. Eccentrics 53 on the shaft 51 are connected to the lower blade holder 31 by rods 54 and when the upper holder and the stock are moving at the same speed, a brake 55 is released, a one revolution clutch 57 is engaged and a motor 58 rotates the shaft 51 to shear the stock. The cylinder (41) for oscillating the blade holders may be replaced by a second crank shaft and eccentric 46, 47 acting on the lower portion of the upper holder. The lower blade holder 31 may be vertically moved by hydraulically-actuated reciprocation of a wedge member (65) below the holder Fig. 8 (not shown). In a further embodiment, Fig. 9 (not shown), the lower blade holder is connected to pivot blocks (73) by a pair of pivoted links (75), (75a) at each side and the holder is moved vertically by actuation of a hydraulic piston and cylinder unit (77), (78) which interconnects the pivots (79), (80) between the links (75) and 75a).
Patent GB-760549-A (GB)
Title: Method of producing a pulverulent fat-soluble vitamin-containing preparation for incorporation into animal feeds
IPC: A23K20/174
Filed: 1954-10-12
Abstract: In preparing an animal feed supplement which contains fat-soluble vitamin or vitamins in a form protected against oxidation, the vitamin-active substance is emulsified in a hot, concentrated solution of a colloidal, hydrophilic organic p  substance, e.g. a soluble starch derivative, a gum such as gum arabic, a soluble cellulose ether or ester, carboxymethyl- or carboxyethyl-cellulose, and the emulsion is dispersed and dried upon a powdered plant tissue substance kept in a fluidized state by an upwardly directed current of drying air.  The plant tissue substance is exemplified by a cereal flour, alfalfa meal and the ground residue of oil seeds after the pressing out or extraction of the oil.  According to an example, vitamin A palmitate and groundnut oil are emulsified in a solution of gelatine, saccharose and glucose in boiled, distilled water, propyl gallata is added to the emulsion to minimize vitamin oxidation during the subsequent operations, the emulsion is sprayed downwards on to wheat flour fluidized by an upward current of air, and hot air is then blown through the mixture to dry it: one part of the product, which is in the form of particles of 1 mm. diam. and contains 10 per cent of water and 20,000 i.u. of vitamin A/g., is mixed with 99 parts of a chicken feed containing buttermilk powder, whey powder, meat and bone meal, herring meal, dried yeast, linseed meal, ground barley, ground oats, oat flour, alfalfa meal, wheat bran, wheat flour, sodium chloride and calcium carbonate.
Patent GB-1056188-A (GB)
Title: Process for metallising ceramics
Inventor: WILMSHURST BEVERLEY ROBLEY
IPC: C04B41/88
Filed: 1964-07-21
Abstract: A process for metallizing a ceramic oxide such as Al2O3 comprises melting on the surface thereof, in an atmosphere of H2, Zr and either V or Mo or a mixture thereof, together with Ni as a solvent metal therefor, the atomic ratio of Zr to Ni greater than 1 to 3, and the total of V and/or Mo being at least 0.001% by weight of the metallic composition. In Example I a bead of Ni of cuplike shape was placed on the surface of a piece of Al2O3 and Zr and Mo were placed in the Ni cup. The whole was heated in a vacuum to 600 DEG C. to degas the materials.  H2 was then admitted and heating continued up to 1500 DEG C. when the metal mass melted and spread over the Al2O3 surface. Example II was similar but the Mo was replaced by V.  Heating was to 800  DEG C. for degassing and to 1400 DEG C. for melting. Applications for metallizing ceramics are in making electronic valves, cutting tools and cermets.
Patent GB-1024759-A (GB)
Title: Method and apparatus for producing glass fibres
IPC: C03B37/08
Filed: 1964-07-14
Abstract: <PICT:1024759/C1/1> In drawing glass fibres 22, a pool 18 of molten glass in a container 24 is delivered through one or more siphon tubes 44 to one or more receptacles 20 with orifices for delivering streams of glass for attenuation, as by winding on spools 48, the pool of glass 18, the delivered glass in tubes 44 and the receptacles 20 being in a common enclosure 28 which is radiantly heated to a substantially uniform temperature.
Patent GB-214670-A (GB)
Title: Improvements in or relating to apparatus for controlling the flow or pressure of fluids
IPC: G05D16/12
Filed: 1922-10-28
Abstract: 214,670. Walker, O. F. Oct. 28, 1922. Ball and float valves. -A valve device operating automatically and intermittently particularly . adapted for controlling the gas supply to illuminated signs and of the type in which an outlet valve is actuated by a float moved by variations in the level of a liquid acted on by the gas pressure has the inlet pipe adapted to admit. less gas than the outlet is capable of passing. In the form shown in the Figure the valve a is suspended from a spring 2 and is connected by a link 5 to a float n guided by a spindle 6 engaging a socket 7. The float works in an inner cylindrical chamber connected by a port m, which may be adjustable, with an cuter annular chamber having an adjustable atmospheric vent 1. The chambers are formed by clamping two glass tubes t, s between end plates r so that the working of the apparatus may be observed. The inlet connection v has a valve-controlled bye-pass leading to the outlet, a coch y for putting the device into or out of action and a cock z for initially adjusting the inflow and thus the length of the open and closed intervals. The valve member or seat may be magnetized so as to cause a, snap action in opening an closing. In a modification, the chambers are made of metal, and a burner nozzle needle regulator is used to control the inlet. In a further modification the valve member is guided above and below its seat.
Patent GB-867490-A (GB)
Title: Production of acetyl pyridines
Inventor: GODIN GEORGE WILLIAM
IPC: C07D213/50
Filed: 1958-09-16
Abstract: Acetylpyridines are prepared by reacting the corresponding hydroperoxyethylpyridines with a strong acid, specifically sulphuric, perchloric or hydrochloric.  2-Methyl-5-acetylpyridine is prepared in examples from 2-methyl-5-(11-hydroperoxyethylpyridine). Specification 867,488 is referred to.
Patent GB-293252-A (GB)
Title: Improvements in or relating to the grinding of table knives and similarly shaped articles
IPC: B24B19/00
Filed: 1927-11-05
Abstract: 293,252. McClory & Sons, Ltd., J., and Atkins, H. F. Nov. 5, 1927. Cutting-edges, shaping and treating. - Table knives &c. E are ground on both faces simultaneously by two belt-driven grinding-wheels H carried by heads K, which are movable by cams M to give the blade the required variable section from point to bolster. The blades E are mounted on a carrier D rotatable on an axis at right-angles to those of the wheels H, and the blade edges are arranged approximately radially of the carrier; the speed of the carrier may be increased to bring a fresh blade into grinding position. The heads are held up to the cams M by springs; the grinding-wheels are reciprocated axially, to equalize wear, by cams P. One grinding-wheel only may be used.
Patent GB-751086-A (GB)
Title: Improvements in or relating to propelling pencils
IPC: B43K24/08
Filed: 1954-10-15
Abstract: 751,086. Pencil holders. MEIER, G. Oct. 15, 1954, [Oct. 19, 1953], No. 29792/54. Class 146(3) A press-operated propelling pencil has a longitudinally displaceable end knob operable in two stages, the first stage bringing the lead carrier into operative position and-the second stage effecting the return of the lead carrier into the rest position. As shown, a knob b has radial projections g and g2, such that when the first stage of movement of the knob as determined by the operator's finger engaging the casing a, has been attained the knob can be moved further by the projections. The projections g, g<SP>1</SP> are slidable in a slot f. Alternatively a single projection may be provided, or both the projections may be dispensed with and the slot may be replaced by a step or oblique face cut in the rear end of the pencil to permit gripping of the knob b after the first stage of movement is complete.
Patent GB-1092315-A (GB)
Title: Improvements in or relating to data transmission apparatus
IPC: H04L25/49
Filed: 1965-07-15
Abstract: 1,092,315. Automatic gain control; transistor circuits. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 15, 1965 [July 17, 1964], No. 30009/65. Headings H3Q and H3T. [Also in Division G4] Variations in level of a received multilevel signal are compensated by adjusting the gain or the threshold levels of the receiver. Four level data is received as a waveform modulated in amplitude to represent the amplitude of the data and in phase to represent the polarity. In one embodiment, Fig. 2, the waveform passes via a variable gain unit 1 to a demodulator 2 and from thence via a low-pass filter 3 to a phase detector 8 and to threshold circuits 5, 6. In the case of a signal having nominal values + 3, + 1, - 1 and - 3 volts the thresholds are +2v in unit 5 and - 2v in unit 6. Gate 7 gives an output if the signal amplitude is greater than 2v. Unit 9 develops the four level output data. Feedback signals A, #A, #, ## representing phase and amplitude pass as shown to a sampling and comparing unit 12 fed by reference voltages from 11 at the four nominal values of the data signal and by timing pulses from unit 10. Unit 12 provides an output whose amplitude represents the difference of the compared signals and which is mixed in balanced modulator 14 with the timing pulses. The low frequency output of the modulator 14 adjusts the gain of unit 1. In an alternative embodiment, Fig. 4 (not shown), this output varies the threshold reference voltages. The reference voltage source 11 and the unit 12 comprises transistor circuitry, Fig. 3. Potential divider 21-24 provides + 3v. at P1 and + 1v. at P2 from a + 6v. stable source; likewise, P4 and P3 are at - 3v. and - 1v. The signal from filter 3, Fig. 2, is applied at the junction of R2 and R4. The base voltages of T1-T4 are derived by identical units 38-41 from the signals A. #A. #, ## and the timing pulses, the arrangement enabling only one transistor during each timing pulse interval. When, for example, one of the signals #A, ## and S is not present transistor 41d is turned on so that T4 is off. When 41d is off, however, T4 is on so that terminal 31b is at - 1v., and the voltage across R4 is the difference of this voltage and the received signal. The output of emitter follower stage 32 varies the gain of the input unit 1, Fig. 2.
Patent GB-215673-A (GB)
Title: Improvements in optical instruments
IPC: G02B15/04
Filed: 1923-11-29
Abstract: 215,673. Taylor, A., and Taylor, E. W. Nov. 29, 1923. Telescope systems.-In tacheometric telescopes in which the object-glass B and the measuring marks H are relatively fixed, the effect of a variable power collective lens situated at a predetermined point on the axis, is produced by a combination of two lenses, one of which is fixed, and the other is movable longitudinally, the lenses being situated between the predetermined point C and the measuring marks H. One of the lenses D is collective and may be a simple or compound lens, and the other lens is dispersive and of equal power to that of the collective lens. In the example given the lens D is fixed and the negative lens is movable and consists of a dispersive lens E and a collective lens F mounted in a sleeve L to slide between the lens D and the measuring marks H. This arrangement is optically equivalent to a variable power collective lens situated at the first principal point of the lens combination D, E, F and ensures that the object is always viewed so that its image in the plane of the measuring marks is always proportional to its distance from the object-glass. Numerical data of the optical system are given in the Specification and Specification 25622/10 is referred to.
Patent GB-340051-A (GB)
Title: Improvements in and relating to the manufacture of ropes, cords or the like
IPC: D07B7/12
Filed: 1929-10-03
Abstract: 340,051. Frost, D. P., and British Ropes, Ltd. Oct. 3, 1929. Materials, special, ropes and cords of.-Ropes, cords, &c. of fibrous organic material are impregnated with an aqueous dispersion of rubber by treating some of the yarns to be formed into a strand with the rubber which is used in such quantity that when the treated yarns are, with other yarns which have not been so treated, formed into a strand, the strand will be impregnated to the desired extent. The impregnation may be effected by drawing the yarns from the bobbins &c. through a bath of latex or an artificial dispersion of rubber in an aqueous medium.
Patent GB-664587-A (GB)
Title: Method of preparing omega-bromo-acetophenone-hexamethylene-tetramine
IPC: C07D487/18
Filed: 1949-11-23
Abstract: The addition compound of o -bromoacetophenone and hexamethylene-tetramine is made by brominating acetophenone in chloroform and mixing the solution with a chloroform solution of hexamethylene tetramine.
Patent GB-413167-A (GB)
Title: Improvements in or relating to the manufacture of jacketted pans
IPC: B01B1/00
Filed: 1933-10-30
Abstract: 413,167. Boiling - pans. FORDYCE, T., and STONE, A., 36, Moorgate, London. Oct. 30, 1933, No. 30065. [Class 66.] The upper edge of the outer wall 15 of the heating jacket of a boiling-pan is turned over the upper rim of the inner vessel 13, the lower edge of the turned-over portion 16 being welded, brazed or soldered to the inner face of the inner vessel. The rim of the inner vessel is preferably joggled or swaged outwardly forming an annular channel to receive the rim of the jacket and the lower part of the cylindrical upper portion 12, a welded, brazed, or soldered joint being formed in the recess or recesses produced at the lower edges of these parts, the spaces 19, 20, being filled so as to be flush with the inner surfaces of the parts 12, 13. The lower edge of the part 12 may be level with the edge of the part 16. Electric welding may be applied externally at 18 at the junctions of the parts 12, 16.
Patent GB-479698-A (GB)
Title: Improvements in machines for sheering metal plates or other sheet material
IPC: B23D33/08
Filed: 1936-11-04
Abstract: 479,698. Shearing. FABRIKSAKTIEBOLAGET HALDATAXAMETERN. Nov. 4, 1936, Nos. 30065 and 30066. Convention dates, Nov. 18, 1935 and July 11, 1936. [Class 83 (iv)] In a machine for cutting shaped holes in plates a cutter 16 is secured to a holder 1 pivoted on a pin 3. A rod 6 is secured to the holder by a pin 5 and carries sleeves 7, 11 between which is confined a spring, 12. A work presser 17 is held in a member 13, and is backed by the sleeve 11. On the downstroke of the rod 6 the presser 17 holds the work, and the cutter 16 cuts a slot in the workpiece supported by a table 2. The presser 17 is made narrower than the cutter. Specification 478,359 is referred to.
Patent GB-425059-A (GB)
Title: A new or improved deodorant preparation for the treatment of the skin and especially feet and hands
IPC: A61K8/19
Filed: 1933-10-30
Abstract: 425,059. Cosmetics; pomades. DUMBRECK, J. C., Elim, West Harnham, Salisbury. Oct. 30, 1933, No. 30088. [Class 131] A deodorant and cosmetic preparation for application to the skin, including the scalp, comprises an admixture of coco-nut oil, oil of lemon and an antiseptic agent, preferably boracic powder. The preparation may be in the form of a cream or emulsion and powdered starch, such as rice starch, may be added as a filler. A wax, e.g. paraffin wax, stearic acid or lanoline, may be added as a binder and a perfume such as oil of verbena may also be added. A suitable composition is coco-nut oil 63 pts. ; oil of lemon 5À2 pts. ; boracic powder 21 pts. ; powdered starch 10À5 pts. ; paraffin wax or other binder 0À2 pts. ; oil of verbena 0À1 pts.-all by weight. If desired, the coco-nut oil and oil of lemon may be in the proportions of 4 : 1.
Patent GB-1190422-A (GB)
Title: Fluid Power System
IPC: F15B11/00
Filed: 1967-06-29
Abstract: 1,190,422. Tractor power lift mechanisms. WEATHERHEAD CO. 29 June, 1967, No. 30136/67. Heading A1P. Supply of pressure fluid from a variable displacement pump 45 to a ram 21 is controlled by a poppet valve 55 associated with a differential pressure regulator 53 and exhaust of ram fluid is controlled by another poppet valve 63 also associated with a differential pressure regulator 61. The valves are operated by a rockable cam 39 whose movement is controlled in dependence on the draft load on the lift linkage and its position, through a mechanical, electrical, or hydraulic connection. Fluid from the pump 45 passes through piston 77 which moves against a spring bias to throttle the fluid passage as pressure increases. For raising, the cam 39 moves clockwise to open valve spool 103 whence the fluid passes to the ram. A high pressure in the ram keeps non-return valve 57 closed until pump pressure is built up by fluid returning from valve 55 via conduit 75 and check valve 48 to operate the pump control 46. In an embodiment the supply circuit incorporates a pressure intensifier and the cam 39 has an additional cam to hold the valve spool 103 open and then to ensure a quick cut-off.
Patent GB-861360-A (GB)
Title: Substituted amino alcohols
Filed: 1958-09-22
Abstract: The invention comprises compounds of the general formula <FORM:0861360/IV (b)/1> and their acid addition and quaternary ammonium salts wherein R is hydrogen, hydroxy, alkoxy or halogen, R1 is hydroxy, where R is hydroxy, otherwise R1 is hydrogen, and R11 is hydrogen or a hydrocarbon radical and the preparation thereof wherein an appropriate N-R11-substituted pyrrolidone is reacted with an aryl Grignard reagent in ethereal solution whose aryl portion is selected to introduce the 3-aryl substituent into said compound to produce a crude reaction mixture, hydrolysing said mixture with aqueous alkali to produce said pyrrolidinol as the free base and, if desired, reacting said free base with an acid or an acid ester to produce an acid addition or a quaternary ammonium salt.  The invention also includes the preparation of a 3-phenyl-3-pyrrolidinol by hydrogenolysis of the corresponding 1-benzyl compound and of a 1-alkyl-3-(hydroxyphenyl)-3-pyrrolidinol by hydrogenolysis of the corresponding benzyloxy ether, hydrogenolysis taking place, in both processes in the cold and in the presence of a platinum or palladium hydrogenation catalyst.  The 3-pyrrolidinone starting materials are prepared by the Dieckmann reaction; thus 1-isopropyl 3-pyrrolidone is prepared by reacting ethyl acrylate with iso-propylamine to give ethyl b -isopropylaminopropionate, reacting this with ethyl chloroacetate to form ethyl b -(N-carbethoxymethyl-N - isopropylamino) - propionate and heating the last named compound with sodium in methanol.  Specification 667,923 and U.S.A.  Specification 2,446,804 are referred to.
Patent GB-320245-A (GB)
Title: Improvements in and relating to change speed gear control mechanism
IPC: F16H59/04
Filed: 1928-10-19
Abstract: 320,245. Birmingham Small Arms Co., Ltd., and Hulse, F. W. Oct. 19, 1928. Controlling variable-speed gearing.-An, operating rod 2 is slidably carried in a tubular member 1, which is adapted to turn but is longitudinally confined by means 18. A control lever 7 is jointed at 6 to the rod 2, and has a depending arm 9 having a ball pivot joint 10 in a bracket 12 clamped to the tube 1. A gear selector arm 5 is secured at the other end of the rod 2. Movement of lever 7 in plane of Fig. 1 slides rod 2 to make selection of speed; perpendicular movement rocks both tube 1 and rod 2 to effect operation.