baber/WOPTO huggingface dataset:
Patent GB-428174-A (GB)
Title: Method of and apparatus for testing materials having plastic or fermentative properties
IPC: G01N33/10
Filed: 1934-07-25
Abstract: 428,174. Testing dough &c. CHOPIN, M. J. E., 133, Boulevard Exelmans, Paris. July 25, 1934, No. 21787. Convention date, Dec. 11, 1933. [Class 58] [See also Group XIX] To measure the plasticity of a material such as dough, a test piece of spherical form is placed on an horizontal plate so that the test piece flattens gradually solely by reason of its own weight and the dimensions assumed by this test piece are measured after a definite time of flow. In the form of apparatus shown a test piece of material formed of definite quantities of constituents heated to the temperature selected for the test is given a spherical form by placing it in a former, Fig. 2, comprising two hollow hemispherical bodies 3, 3<1>, connected by a cylindrical tube 4 and powdered or roughened internally to prevent adhesion, the former being subjected to successive inversions ; an iris diaphragm 5 let into a casing 6 is closed when the sphere is formed so that the sphere of material may rest thereon while the lower part of the casing is removed, subsequent gradual opening of the diaphragm permitting the sphere to pass through and be deposited on the test disc 2<1>, Fig. 3. The disc 2<1>, provided with a centring cone frustum 10, rests on an upstanding portion 9 of a metal stand 7 formed with a recess containing water 8. The stand is provided with a water circulation conduit 13, a heating resistance 14 and a temperature regulator ; the test material is covered by a thermally insulated casing fitted with a clear glass window 17 and a ground glass window 18. The dimensions of the test piece are observed by taking the dimensions of its shadow cast on the ground glass by a point source of light 21 provided with adjusting screws. A hand wheel 12 provides means for rotating the test piece and screws 24 for levelling the stand. The dimension of the test piece may be obtained photographically, a clockwork device moving a sensitized paper or film into position, this device also rotating the disc, or by electrodes brought into contact with the test piece the electrodes being connected by flexible wires to styles that record the position on a recording cylinder ; a cathetometer may also be used.
Patent GB-1559701-A (GB)
Title: Curtain coating
IPC: G03C1/74
Filed: 1976-05-26
Abstract: The object (3) to be coated, for example a photographic support material, is passed beneath a sliding surface casting head (1), the coating composition descending from the latter in the form of a single- or multiple-layer curtain (10) onto the object and being deposited as a coating (15) thereon. At a slight distance from the descending curtain (10) is arranged a guide (12) extending transversely over the entire arrangement and having a curved surface departing from the vertical. A rising laminar air stream (F) is generated between the guide and the curtain. Because of the action of the air stream, the descending curtain is deflected from its natural vertical path and follows the shape of the guide (10). As a result, an improvement of the stability of the falling curtain is achieved. <IMAGE>
Patent GB-1089333-A (GB)
Title: Improvements in and relating to pressure sensitive adhesives
Inventor: CHRISTMAS HENRY FRANCIS
IPC: C08F10/00
Filed: 1963-05-31
Abstract: A pressure-sensitive adhesive composition comprises a mixture of polyhexene-1 and polyoctene-1. A pressure sensitive adhesive copolymer of hexene-1 and octene-1 is prepared by solution polymerization in the presence of a catalyst composition comprising lithium aluminium tetradecyl and titanium tetrachloride. Similarly prepared are hexene-1/decene-1 copolymer, hexene-1/tetradecene-1 copolymer, hexene - 1 / tetradecene - 1 / 4 - phenyl - butene-1 copolymer, ethylene / octene - 1 copolymer, 4 - methyl - pentene - 1 / octene - 1 copolymer, 4 - phenyl - butene - 1 / octene - 1 copolymer, pentadiene - 1,3 / octene - 1 copolymer, and hexadiene - 1,5 / octene - 1 copolymer.ALSO:A pressure sensitive adhesive material comprises a substrate (e.g. Cellophane-Trade Mark) having a coating of either:  a composition comprising poly-1-octene and another poly-a -olefin, or a copolymer of octene-1 and another a -olefin, or a copolymer of at least two olefins, one of which has a molecular weight greater than octene-1 and one a molecular weight less than octene-1, the copolymer optionally containing a third olefin comonomer.
Patent GB-887774-A (GB)
Title: Improvements in and relating to diaphragm pumps
IPC: F04B43/067
Filed: 1959-06-26
Abstract: 887,774. Diaphragm pumps. SIMPSON, C. W. June 24, 1960 [June 26, 1959], No. 21920/59. Class 102(1). A pump 21 has actuating means comprising a flexible diaphragm 12 and valve members 23, 24 on a spindle 22 which passes through a ported plate 20 mounted in an actuating chamber 10. Non-return valves 19, 17, allow passage of the actuating liquid between the chamber 10 and a reservoir 15 during the suction and pressure strokes respectively of a reciprocated actuating plunger 13, the valve 17 being adjustable.
Patent GB-1505766-A (GB)
Title: Multiplate clutch
IPC: F16D25/10
Filed: 1975-05-21
Abstract: 1505766 Friction clutches MOTORENUND TURBINEN-UNION FRIEDRICHSHAFEN GmbH 21 May 1975 [28 June 1974] 21958/75 Heading F2C In an hydraulically operated multiplate friction clutch, pins 24 freely slidable in bores in an actuator ring 20 limit the total clearance between the clutch discs 14, 17 during disengagement. As shown, in a double clutch for reverse gear, the actuator 20 is biased to a central neutral position by springs 21 and pressure oil is selectively fed through ducts 22, 23- to engage one of the clutches. The dis-  engaging movement of the presser plate of the other clutch being limited by the pins 24.
Patent GB-294886-A (GB)
Title: Improvements in or relating to the combustion chambers of internal combustion engines
IPC: F02B23/08
Filed: 1928-07-30
Abstract: 294,886. Darche, A. A. A. July 29. 1927, [Convention date]. Cylinders, combustion chambers of and arrangement of igniters in. - In a cylinder having inlet and exhaust valves S, S<1> on oppostte sides, the piston approaches the cylinder head with minimum mechanical clearance so that two combustion chambers A, A<1> are formed, each having a sparking plug B. If the invention is applied to an existing engine by replacing the piston, the danger of detonation, due to too great an increase in the compression ratio, may be obviated by throttling the induction passage. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a reference to Specification 287,489. This subject-matter does not appear in the Specification as accepted.
Patent GB-1459257-A (GB)
Title: Capped polyols and curable compositions prepared therefrom
IPC: C08G18/40
Filed: 1974-05-17
Abstract: 1459257 Capped polyols; polyurethanes DOW CHEMICAL CO 17 May 1974 [23 May 1973] 22065/74 Heading C3R [Also in Division C2] The invention comprises (A) capped polyols (I) where Z is a residue obtained by removing the hydroxy groups from a 2-8 hydric polyol (e.g. a novolac resin optionally condensed with propylene oxide); R 3  is C 1-6  hydrocarbyl; R 1  and R 2  are hydrogen or C 1-6  hydrocarbyl or R 1  and R 2  together form a tetramethylene group, (B) their preparation by reacting the appropriate polyol with an unsaturated ether (C) curable compositions comprising the compounds (I) and an organic polyisocyanate having a ratio NCO : OH (in uncapped polyol) of 0À7 : 1 to 1À4 : 1, (D) a polyurethane obtained by curing the above composition and (E) articles coated with the above composition and articles cast therefrom.
Patent GB-1472655-A (GB)
Title: Process for producing lubricating oils
IPC: C10N80/00
Filed: 1974-05-17
Abstract: 1472655 Hydrocracking; purifying hydrocarbon oils TOA NENRYO KOGYO KK 17 May 1974 [19 May 1973] 22088/74 Heading C5E Lubricating oils of good stability to light are produced by (i) hydrocracking an oil of viscosity more than 3 cS at 98À9‹ C. over a catalyst, (ii) fractionating the cracked material to obtain a fraction of lubricating viscosity, and (iii) hydrogenating this fraction over a catalyst of Pd on a refractory oxide support. This support contains some silica, but less than 40%, has a specific surface of 100 to 500 m.<SP>2</SP>/g., a pore volume of 0À5 to 1À2 ml./g., and average pore radius of 30 to 120 Š and a bulk density of 0À3 to 0À7 g./ml. The feedstock preferably boils above 350‹ C. and may be a vacuum distillate or residuum, may contain some atmospheric distillate and may be deasphalted. The major component of the hydrogenating catalyst may be magnesia, zirconia, titania, hafnia or boria but is preferably alumina, to which may be added a small amount of magnesia of zirconia. The catalyst may also comprise promotors such as Th or Ce. The cracked fraction (ii) may be hydrofined to remove sulphur and nitrogen, over a catalyst comprising a metal of group VI or Group VIII or mixed metals such as Mo/Co, Mo/Ni, Mo/Ni/ Co, W/Ni/Co as oxide, sulphide or mixture of these on an inorganic oxide carrier, e.g. of alumina, magnesia, diatomaceous earth, boria or thoria. It may also be dewaxed before or after the hydrofining or after the hydrogenation step (iii).
Patent GB-1372343-A (GB)
Title: Waste collecting
IPC: B23K7/00
Filed: 1973-05-09
Abstract: 1372343 Flame cutting CATERPILLAR TRACTOR CO 9 May 1973 22179/73 Heading B3V A flame cutting machine 11 includes a waste collector 10 comprising a liquid tank having a grating 26 extending across its top for retaining waste material and means for controlling the level of the liquid in the tank above and below the grating 26. The workpiece 34 to be cut by cutting torches 12 is supported on spaced members 31 secured to the sides of the tank. Air under pressure is introduced via a valve 53 into chambers 47 formed in the tank to cause the level of water in the tank to rise above the grating 26. Oxide and metal particles produced during the cutting operation pass through the grating 26 and gravitate through the water to pass through an opening 44 at the bottom of the tank, after which they are carried out of the tank by a conveyer 56. Waste pieces cut from the workpiece 34 are retained by the grating 26 and are subsequently removed therefrom by an operator after the air has been exhausted from the chambers 47 to allow the liquid to fill them which results in a fall of the water level below the grating 26.
Patent GB-1453804-A (GB)
Title: Apparatus for feeding wires or strips of welding or brazing  material-
IPC: B23K9/28
Filed: 1974-05-17
Abstract: 1453804 Welding/brazing material feeding apparatus G G CHOUZENOUX 17 May 1974 [22 May 1973 28 Dec 1973] 22207/74 Heading B3R An apparatus for feeding wires or strips of welding or brazing filler material includes an enclosure 18 containing a hollow guide 21 through which the material is fed by feeding means 2-14, a heat shield 26 provided at the end of the enclosure and means, pipe 24, for directing cooling fluid on to an inner face of the heat shield, the arrangement being such that the cooling fluid, which may be a liquid, e.g. water, or a gas, returns past the hollow guide 21  to cool the material being fed through. In Fig. 3, the heat shield has a recess 34 to present a greater cooling area for the fluid and the enclosure is adjustably mounted via a ball joint arrangement 28-29 on to end member 15 of the frame 19 of the feed means so that it may be reorientated to any position within notional cone 36 by adjustment of screws 41-43. In Fig. 2, the enclosure is fixed, but its outer end is curved and the heat shield is a simple plate. The shield is made of a non-weldable or -brazable non- oxidizable material, which does not melt at welding or brazing temperatures, such as metal or refractory ceramics. In one arrangement, a plurality of wires or strips may be fed through the enclosure in separate guide tubes (21, 21<SP>1</SP>, Fig. 6, not shown) which diverge from the ball joint end to the heat shield end. The feeding means comprises a pneumatic double-acting ram 6-9 and pivoted grippers 3, 3<SP>1</SP>, grippers 3 being fixed to frame 19, while grippers 3<SP>1</SP> are fixed to piston-rod 6.
Patent GB-787953-A (GB)
Title: New or improved apparatus for detecting variations in weight of items which are required to be examined as to their weight in sequence, and for accepting or rejecting items so examined according to their weight
IPC: A21C5/00
Filed: 1954-07-30
Abstract: 787,953. Weighing apparatus. BURGESS, L. N., and ROBERTS., J. A. July 26, 1955 [July 30, 1954], No. 22252/54. Class 143 [Also in Group XXX] An apparatus for rejecting underweight articles (e.g. dough pieces) from a stream, comprises a conveyer 10 passing over rollers 15 supported by a scale 17 and a pivoted deflector 19 which directs correct or overweight pieces to a conveyer 33 and diverts underweight pieces on to a conveyer 20. The deflector is moved to the dotted line position by a linkage 211, 21 and a cam 24 (Fig. 6) when, due to the closing of contacts (not shown) in the scale 17, a solenoid (not shown) withdraws a rod 29 from engagement with an arm 281 and so allows a constantly rotating toothed wheel 26 to drive cam 24, which is loosely mounted on shaft 25, through a pawl 27. In a modification (Fig. 9, not shown) the solenoid is directly connected to the link 21.
Patent GB-835864-A (GB)
Title: Improved thermoplastic materials
IPC: C08L23/10
Filed: 1958-07-11
Abstract: A composition comprises a highly crystalline, high molecular weight polymer of propylene admixed with a solid propylene-ethylene copolymer, said copolymer containing from 30-70% of ethylene.  It is preferred that the composition contains from 5-20% of the copolymer and the composition may be prepared by heating the mixture at 180-190 DEG  C. until homogeneous.
Patent GB-1507155-A (GB)
Title: Bonding of isotropic fibre webs
IPC: D04H1/66
Filed: 1975-05-22
Abstract: 1507155 Laminates KIMBERLY-CLARK CORP 22 May 1975 [14 Aug 1974] 22335/75 Heading B5N A tissue fibre laminate suitable for use for surgical drapes, disposable sheets and pillow cases comprises outer plies of cellulosic tissue with the machine direction of the tissue plies the same, an intermediate isotropic web of randomly oriented fibres, the majority of which have a length greater than one inch, and adhesive in a pattern between the outer plies of tissue attaching the tissue plies to each other with the fibres of the fibre web bonded in the adhesive, the adhesive pattern coacting with the isotropic web to provide a fibre matrix with a strength which approaches the sum of the strengths of the fibre segments between bonding points in the adhesive pattern and which has a B/A factor less than 1À5 where A equals the straight line distance between bond points and B equals the distance between bond points along the path of the crooked fibre segment, 25-50% of the total area of the laminate being covered by adhesive. The outer tissue plies may each have a finished basis weight of 7-30 g/yd.<SP>2</SP> In the isotropic web the fibres which may be of polyester or viscose rayon preferably have a denier of ¢ to 5 and a weight of 4-20 g/yd.<SP>2</SP> The adhesive pattern preferably comprises continuous spaced lines extending transverse to the machine direction of the tissue plies, the line width being more than 0À01 inch and less than the spacing between lines which is not greater than 0À06 inch. The laminate preferably has a grab tensile strength of above 6 lb/inch. The cellulosic tissue may have been stretched and ironed to facial tissue softness. Suitable adhesives are polyvinyl acetate, vinyl acetate/ethylene copolymers, acrylic resins and vinyl chloride polymers.
Patent GB-816737-A (GB)
Title: Improvements in or relating to alternating voltage stabilizers
IPC: G05F1/34
Filed: 1956-07-19
Abstract: 816,737. Automatic voltage-control systems. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 19, 1956 [July 22, 1955], No. 22411/56. Class 38 (4). In an A.C. voltage stabilizer having a transformer between the input and output circuits, a regulating transductor is arranged in series with the transformer primary and change of input voltage or output load, is detected by a voltage-sensitive bridge feeding a phase detector, the amplified output of which controls the transductor. The primary of auto-transformer 1 is series-connected with transductor 2 and rectifier bridge 3 between input terminals 13, 14. The output voltage at terminals 15, 16 is applied to a transformer 31, having a tapped secondary forming two arms of a voltage-sensitive bridge, balanced at the required output voltage. Lamp 28 is the voltage-sensitive element, the balance being adjusted by resistance 29. The inductive component of lamp 28 is balanced out by phase network 35, 36. The error voltage from the bridge is applied to a transformer 34, unwanted harmonics being removed by a parallel-T filter 5, and the signal being amplified by valve 6. Phase-correcting network 43, 44 compensates any phase change due to transformers 31, 34 and the bridge circuit. The output of amplifier 6 is applied to a phase-detector 7. A.C. anode voltage from a transformer 50 causes a negative D.C. voltage across load resistance 47, dependent in amplitude on the amplitude and sense of the voltage from the bridge. The D.C. phase detector output is amplified in a valve 8 and applied to the transductor main control winding 21. The impedance of the A.C. winding 20, 20<SP>1</SP> is thus varied to reduce the voltage error. To prevent hunting, the output voltage change is fed through transformer 50 to a rectifier 58, the output of which is differentiated in circuit 61, 48, and then added to the error control voltage applied to the grid of valve 8. A supplementary control, dependent upon the primary current, is provided by a rectifier 3 feeding a transductor auxiliary winding 22, 22<SP>1</SP>, the degree of control being set by resistance 27. To effect response to change of input voltage the consequent change of primary current is amplified by the action of the auxiliary winding 22, 22<SP>1</SP>, thus causing a greater change in output voltage to which the main regulation, system responds. Overload protection is provided by a relay 11 which at excessive output voltages, cuts off valve 8, thereby increasing the A.C. winding impedance of the transductor 2. An indicator lamp 69 shows operation of the regulation system and choke 64 provides a minimum secondary load. The H.T. supply for valves 6 and 8 is provided by a rectifier 51. Filters 65, 66 and 67, 68 suppress fifth and third harmonic components respectively in the transformer 1.
Patent GB-1000409-A (GB)
Title: Process for the production ofª‰-carotene
IPC: C12P23/00
Filed: 1963-06-05
Abstract: In a process for the production of b -carotene by aerobically culturing + and - forms of Blakeslea trispora in a nutrient medium, there is also present (a) anamide of formula RCONR1R2 where R is hydrogen, an alkyl radical containing up to 6 carbon atoms, an aryl or an aralkyl radical, and R1 and R2 are hydrogen or alkyl radicals containing up to 4 carbon atoms, (b) an imide of formula <FORM:1000409/C2/1> where R3 is a divalent aliphatic hydrocarbon radical containing up to 8 carbon atoms, (c) a lactam of formula <FORM:1000409/C2/2> where R3 is as above, or (d) a sulphoxide of formula R4SOR5 where R4 and R5 are alkyl radicals containing up to 4 carbon atoms. Compounds of the above formulae which may be used are dimethylformamide, acetamide, dimethylacetamide, propionamide, butyramide, succinimide, N-bromosuccinimide, N-hydroxymethylsuccinimide, caprolactam, a -pyrrolidone and dimethylsulphoxide.  The nutrient medium also may contain 2,2,6-trimethylcyclohexanone or its semicarbazone, b -ionone, 2,2,4-trimethyl-6-ethoxy-1, 2-dihydroquinoline, N,N1-diphenyl-p-phenylenediamine and thiamine, besides the usual sources of carbon and nitrogen and mineral salts.  Examples are given.
Patent GB-187766-A (GB)
Title: Improvements in or connected with extra air devices for correcting the carburation and economising fuel of internal combustion engines
IPC: F02D9/00
Filed: 1921-08-24
Abstract: 187,766. Heath., A. E. Aug. 24, 1921. Cylinders, pipes for.-An additional air inlet device comprises a casing 7, Fig. 1, provided with air inlets 21 and containing an air admission valve 1 connected to a piston 2, the space above the piston being in communication with the carburettor choke tube through a pipe 16 and the space between the valve and the piston being connected to the induction pipe on the engine side of the carburettor throttle through a nozzle 10. The valve is closed by a spring 12, by adjusting the tension of which the valve may be arranged to either remain closed, or to admit a little air, when the throttle is slightly opened and the suction in the induction pipe is high. As the throttle is further opened, the valve closes until the suction in the choke tube is sufficient to overcome the pressure of the spring and the suction below the piston, when the valve onens in proportion to the engine speed. The time of opening of the valve may be delayed by admitting air above the piston through a by-pass 17. Air ports mav be arranged in the valve extension 3 and in the seat 4 so that the admission of air is cut off if the valve rises abnormally. In the modification shown in Fig. 3. the air valve 1 seats on a ring 22 at the bottom of the casing 7, and the piston and valve are connected by a chamber 23 provided with holes 28, 29 and containing an additional spring-closed air valve 24.