baber/WOPTO huggingface dataset:
Patent GB-1275600-A (GB)
Title: Process for finishing fibre materials
Inventor: SCHAFER KARL
IPC: D06M15/564
Filed: 1969-09-25
Abstract: 1275600 Polyurethane finishing agents FARBENFABRIKEN BAYER AG 25 Sept 1969 [25 Sept 1968] 47253/69 Heading C3R [Also in Divisions D1-D2] A finishing agent suitable for finishing fibre materials (see Divisions D1-D2) comprises a mixture in an aqueous or non-aqueous medium of (A) an isocyanate group-containing reaction product of (1) an organic compound containing at least 2 active H atoms and having a M.W. of 500 to 10,000 and (2) a polyisocyanate, and (B) the reaction product, or the alkylated reaction product, of (3) a compound containing at least one OH group and (4) an aliphatic monoisocyanate. The isocyanate groups of (A) may be free or blocked. Suitable compounds (1) are polyether and polyester diols and compounds (2) are preferably aliphatic or cycloaliphatic diisocyanates, but may also be aromatic diisocyanates. The hydroxyl groups of compounds (3) may be reacted partially or completely with the isocyanates (4). It is also possible to react compound (3) partially in a first step with isocyanate (4) and in a second step to react the remaining OH groups with polyisocyanates such that a compound with free NCO groups results. Compound (3) may be aliphatic and cycloaliphatic alcohols, diols, polyalkylene ether diols, polyols, polyalkylene ether polyols, polyether thioether diols and polyesters, those preferred being ethylene oxide or propylene oxide addition products with trimethylolpropane. Suitable monoisocyanates (4) are C 4-22  aliphatic isocyanates, particularly myristyl isocyanate or stearyl isocyanate. When in aqueous dispersion it is preferred to add an aqueous dispersion of a polymer or copolymer based on vinyl or divinyl compounds to the mixture. Perchloroethylene is the preferred solvent for preparing non- aqueous solutions. The reaction product (B) may be alkylated with dimethyl sulphate and an alkali. In a typical example hexamethylene diisocyanate is reacted with a propylene oxide/ trimethylol propane polyether to form reaction product (A) and reaction product (B) is derived from the same polyether and stearyl isocyanate, the mixture being dissolved in perchloroethylene.
Patent GB-1079937-A (GB)
Title: Deriving a fundamental frequency signal from a complex periodic signal
IPC: G01R23/00
Filed: 1964-11-23
Abstract: 1,079,937. Fundamental frequency extractor. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 23, 1964 [Dec. 9, 1963], No. 47511/64. Headings H3T and H4R. The amplitude of the fundamental frequency component of a complex periodic electrical signal is increased in relation to the amplitudes of the higher frequency components by feeding the signal to a negative feedback amplifier having a filter which attenuates different frequencies of the signal increasingly with increasing frequency, the feedback means being arranged to feed back a control signal representative of the average value of the alternating component of the ampli. fier output signal. A variable attenuator 12 (Fig. 1) adjusts the level of an input signal applied to terminal 10 in accordance with the voltage appearing on a feedback conductor 13. The attenuator output is applied through a wide band amplifier 14 to a low-pass filter 16 which exhibits an attenuation of 6 db. per octave. The fundamental frequency of the input signal falls within the negative slope portion of the filter 16 so that the second and higher harmonics are attenuated more than the fundamental. The feedback network includes an amplitude detector 20. Several such circuits are preferably connected in series, Fig. 3 (not shown). Attenuator 12 comprises anode-to-anode connected diodes (60, 62), Fig. 5 (not shown), the output of the amplitude detector 20 being connected to the common anode connection. The amplifier 14 comprises three transistors (64, 66, 68). A resistor (70) and capacitor (72) serve as the filter 16 and are inserted in the amplifier circuit 14. The feedback network includes a D.C. isolating capacitor (73) and a transistor (74) biased to act as a rectifier. The rectified output at the collector of transistor (74) is applied across an R.C. smoothing network. In an alternative arrangement anode-to-anode connected diodes (80, 82), Fig. 6 (not shown), act as a variable attenuator and, together with a capacitor (84), act as a lowpass filter having a negative slope characteristic.
Patent GB-1131615-A (GB)
Title: Improvements in or relating to fastener inserting tools
Inventor: MCQUEEN ROY DEREK
IPC: B21J15/26
Filed: 1964-11-28
Abstract: 1,131,615. Anchoring bolts. K. LEITNER. 24 Feb., 1966 [28 Nov., 1964], No. 48450/64. Heading F2H. [Also in Division B3] A tool for inserting a blind nut 31 into an aperture 29 in a workpiece 30 comprises a setting head 5 from which projects a threaded portion 19 of a shaft 15 which has at its lower end a bolt 24 which is pivotally mounted on the portion 19 and is movable between a position in which the axis of the bolt is aligned with the axis of the shaft 15 and the position shown in Fig. 1 in which the axis of the bolt is normal to the axis of the shaft. The shaft 15 is secured, by a radial pin 17, in a sleeve 6 which is mounted on a driving shaft 3 and is locked by a pin 7. A nosepiece 8 is mounted on the outside of the sleeve and is retained by a plurality of pins 10, there is a thrust bearing 11 between the sleeve, which rotates, and the nose-piece which is stationary. The shaft 3 is driven through a torque-limiting clutch 2 by a shaft 1 which is connected to a reversible electric motor. Operation.-The nut 31 is screwed on to the bolt 24 which is then turned to the position shown in Fig. 2 so that the nut and bolt can be passed through the aperture 29. The drive to the shaft 3 is started and the bolt swings, due to centrifugal force, to the position in which it is aligned with the shaft 15. The tool is withdrawn until the nut 31 engages the blind side of the work and the nut then travels along the thread of the bolt and on to the threaded portion 19, the thread on which is a continuation of the thread on the bolt. When the nose-piece 8 contacts the surface of the workpiece 30, a collar 28 on the nut is drawn into the aperture 29 to secure the nut to the workpiece. The drive to the shaft 3 is then reversed to remove the portion 19 and the bolt 24 from the nut.
Patent GB-1417786-A (GB)
Title: Unloader for the grain bin of a combine
IPC: A01F12/46
Filed: 1973-10-24
Abstract: 1417786 Grain discharge for combine BC MATHEWS 24 Oct 1973 [24 Oct 1972] 49625/ 73 Heading A1F [Also in Division B8] An unloader for the grain bin (12), Fig. 1 (not shown) of a combine comprises a vertical auger 19 in a pipe 20, a boom assembly 21 with a generally horizontal auger 23 in a pipe 22 and a turret 27 connecting the pipes 20, 22. Vertical auger shaft 47 is continued through the turret 27 and is connected through bevel gears 46, 80 to a propellor shaft 29 external of the pipe 22 and substantially equal in length to the pipe 22 with a driving connection 73 to horizontal auger shaft 71. The axes of the shafts 47, 71 lie in a common vertical plane so that grain elevated by the vertical auger 19 into the turret 27 can move directly into the horizontal auger pipe 22. The term "horizontal auger" is intended to include augers disposed at an angle to the horizontal which is considerably greater than that illustrated. A sprocket 41 on a shaft (40), Fig. 2 (not shown), is driven by a chain (82) and has a bevel gear (42) engaged with the gear 46 and thus drives both the auger shaft 47 and, through the propellor shaft 29, the auger shaft 71. The boom assembly 21 can be angularly adjusted about the vertical axis of the shaft 47 by a swing actuator (62).
Patent GB-1088740-A (GB)
Title: Improvements in and relating to nuclear reactors
IPC: G21C7/18
Filed: 1965-08-27
Abstract: 1,088,740. Controlling reactors. SULZER BROS. Ltd. Aug. 27, 1965 [Sept. 10, 1964], No. 49738/66. Divided out of 1,076,361. Heading G6C. In a nuclear reactor having a number of control-rods movable lengthwise into and out of the reactor core, the adjusting movement of the control rods is such that at any given time during operation some of the rods are in one end position, e.g. fully inserted into the reactor core, while some of the other rods are in the other end position, e.g. fully withdrawn, and at least one of the other rods is in an intermediate position between these two end positions and performing the adjusting movements, the performance of the adjusting movements being transferred, at intervals of time while the reactor is in operation, from the or each movement-performing rod to a rod or rods disposed elsewhere in the reactor. The change of the rods performing the adjusting movements may be cyclic, in which case means are provided for periodically shifting the boundary between the rods in one end position and those in the other end position by the number of rods in intermediate positions which are moved into end positions. The control arrangement described in the parent Specification 1,075,361, as a result of the boundary shift, moves the necessary number of rods into intermediate positions arid returns those in intermediate positions to end positions. Compensating means are arranged to deliver a compensating signal which is so superimposed upon the control signal to the rods which are in intermediate positions as to oppose such disturbance of the reactor control as is caused by the boundary shift.
Patent GB-1211868-A (GB)
Title: Improvements in or relating to machine tool control systems
Inventor: SHILLAM NORMAN FREDERICK
IPC: B23Q15/12
Filed: 1967-11-02
Abstract: 1,211,868. Automatic temperature and speed control systems. MINISTER OF TECHNOLOGY. Nov.20, 1968 [Nov.2, 1967], No.49790/67. Heading G3R. A machine tool control system designed to maintain the tool cutting edge at a pre-set temperature a little below that at which accelerated tool wear takes place, comprises an amplifier 10 to which is fed the thermo-electric voltage generated by the junction between the workpiece 21 and tool 23, the output of amplifier 10 being compared over resistors 6, 7 with a signal from a potentiometer 1 representative of the desired temperature and the resultant error signal from an amplifier 5 being used to adjust the speed of the shaft 17 via a Ward- Leonard speed control system 13. The latter, together with a tachogenerator 14 and a speed reference circuit 15, 16 forms a feedback loop which controls the shaft speed at a relatively low value set by the potentiometer 16 prior to a cutting operation. When cutting commences the thermoelectric voltage rises and, when it has reached a predetermined value, causes a threshold circuit 4 to open switch 15 and close a switch 2, thereby substituting the reference signal 1 for the reference signal 16 and so maintaining the preset temperature during the cutting operation. The control actions are reversed when members 21, 23 are disengaged. A large input to amplifier 5 indicative of a fault actuates a warning device 11. The tool-  holder 22 is insulated from the machine frame and a slip ring/brush arrangement 18, 20 short circuits the resistance between the shaft and frame to  reduce extraneous noise signals. Control malfunctions due to swarf short-circuiting the members 21, 22 may be minimized by providing a peakdetecting circuit comprising a diode in series with the output of the amplifier 10 and a capacitor connected between the line 8 and earth. Noise from the mains may be reduced by using battery supplies for the amplifier 10 which then comprises integrated circuitry. The amplifier 5 may include a variable gain stage to compensate for non-linearity in the voltage-temperature characteristic of the workpiece-tool combination. To prevent unwanted response caused by temperature transients associated with certain workpiece materials, the buildup of the signal from switch 2 may be delayed. The supply of coolant to members 21, 23 also serves to reduce "cold-junction" effects in the metallic interfaces between members 23, 10, which effects would otherwise oppose the thermoelectric voltage generated by the members 21, 23. Alternatively the "cold-junction" effect may be compensated by a copper-constantan junction or a resistance thermometer in thermal contact with the "cold-junction" area of the tool. If the tool is not insulated, the thermp-electric voltage may be picked off a resistance inserted in the connection between the brush 20 and earth. Application of the invention to lathes, drills and milling machines is envisaged.
Patent GB-1005150-A (GB)
Title: Improvements in fuel-feed regulators in internal combustion engines
IPC: F02M35/09
Filed: 1963-12-17
Abstract: 1,005,150. Regulating; indicating working conditions. DAIMLER-BENZ A.G. Dec.17, 1963 [Dec. 19, 1962], No. 49834/63. Heading F1B. Increased suction in the intake pipe, produced by clogging of the air filter, causes a suction responsive device 8 to adjust the full load stop 6 of the fuel feed regulator 2 to reduce the full load fuel supply. The full load stop 6 is formed on a spring-loaded lever 5 pivoted at 4 and formed with stepped teeth 10. . .10<SP>11</SP> cooperating with a rod 7 attached to a diaphragm responsive to the suction in the intake pipe downstream of the air filter. The fuel control spindle 1, e.g. of a fuel injection, pump, has a control arm 2 carrying a pin 3 which abuts the stop 6 at full load. Under normal conditions the rod 7 is in its lowest position co-operating with stop 10. Upon partial clogging of the air filter the increased intake pipe suction raises rod 7 until it co-operates with step 10<SP>1</SP>, the rotation of the lever 5 by spring 9 lowering the stop 6 to reduce the full load fuel supply. Upon further clogging of the filter the rod 7 is raised to co-operate with step 10<SP>11</SP> producing a further reduction in the full load fuel supply. In this position an alarm such as a warning light or acoustic signal may be operated to indicate the clogged filter condition.
Patent GB-1450960-A (GB)
Title: Stabilization of prostaglandins
IPC: A61K9/19
Filed: 1973-10-26
Abstract: 1450960 Compositions containing cyclodextrin clathrates of prostaglandins ONO PHARMACEUTICAL CO Ltd 26 Oct 1973 [27 Oct 1972] 50047/73 Heading A5B [Also in Divisions C2 and C3] Pharmaceutical compositions, suitable for oral or parenteral administration, contain cyclodextrin clathrates of prostaglandins having a cyclopentane ring of the PGE type and Vitamin C or citric acid in an amount sufficient to inhibit conversion of the PGE cyclopentane ring into the cyclopentene ring of a prostaglandin A, and, pharmaceutically acceptable inert solid or liquid carriers or diluents. Reference has been directed by the comptroller to Specifications 1364125, 1362956, 1362955, 1348162, 1156465 and 1040544.
Patent GB-1094059-A (GB)
Title: Refrigerator cabinet
IPC: F25D17/06
Filed: 1965-11-26
Abstract: 1,094,059. Refrigerators. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 26, 1965 [Dec. 29, 1964], No. 50321/65. Heading F4H. The freezer compartment 12 and cooling compartment 11 of a refrigerator are so divided by a wall 13 that a portion 23 of the freezer compartment is accessible through the door of the cooling compartment. A door 24, Fig. 2 (not shown), inside the cooling compartment is provided for the freezer portion 23, which is separated from the main part of the freezer by a wire rack 26. A fan 28 circulates air from an evaporator 27 to freezer and cooler outlets 32 and 33, air from the cooler returning through ducts 34 and 36.
Patent GB-1525478-A (GB)
Title: Process for the preparation of light hydrocarbon fraction
IPC: C10G47/00
Filed: 1975-12-10
Abstract: 1525478 Hydrocracking oils SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 10 Dec 1975 [12 Dec 1974] 50597/75 Heading C5E Light hydrocarbon fractions are prepared by catalytically hydrocracking a heavy hydrocarbon oil that consists at least partly of a deasphalted oil, distilling the hydrocracked oil to separate one or more light hydrocarbon fractions and a residual fraction, dividing the residual fraction into two portions having the same composition but differing in size and recirculating the larger portion only to the hydrocracker. The process can be used as the second stage of a two-stage hydrocracking process with the product of the first-stage optionally being separated by distillation into a residual fraction, which is used as the feed to the second stage, and a light hydrocarbon fraction or with the feed to the second stage consisting of the larger portion of the residual fraction obtained by distillation of a mixture of the first stage product and the second stage product. The heavy hydrocarbon oil feed can be deasphalted atmospheric or vacuum residue or a blend obtained by distilling an atmospheric residue at reduced pressure, deasphalting the vacuum residue and blending the deasphalted residue with the vacuum distillate. The hydrocracking can be carried out at 250-450‹ C and 50-200 bars; the first-stage catalyst can be nickel sulphide + molybdenum sulphide + fluorine on alumina and the second-stage catalyst can be nickel sulphide + tungsten sulphide + fluorine on silica-alumina. The smaller portion of the residual fraction can be dewaxed and used as a high viscosity index lubricating oil or blended with distillate or residual components, e.g. asphalt which has been removed in the preparation of the deasphalted oil, and used as a fuel.
Patent GB-1455142-A (GB)
Title: Baking process
IPC: A21D2/00
Filed: 1973-10-31
Abstract: 1455142 Bakery products; treating whey FOREMOST-MCKESSON Inc 31 Oct 1973 [1 Nov 1972] 50639/73 Heading A2B Bakery products are made by forming dough from flour, water and yeast and incorporating therein 0.5-2.0% (based on the flour) of a whey protein concentrate, the protein being in water soluble undenatured form and having a degree of -SH activity in terms of available -SH groups at a level of 1% protein in the flour equivalent to that of 10-50 ppm. L-cysteine hydrochloride. A dough conditioner, which may be a mono- or di-glyceride, an ethoxylated monoglyceride, or a polyoxyethylene sorbitan ester of a long chain fatty acid or a sodium or calcium stearoyl lactylate may be added together with the whey in a dry free flowing composition, the composition containing 50-95% whey protein concentrate and 5-50% dough conditioner. This composition may also contain 0.2-1.0% of a gluten activating agent selected from cysteine, glutathione, sulphite salts and mixtures thereof. The whey protein concentrate may be produced by subjecting whey to membrane filtration to produce a protein rich fraction. Lactose may be further removed in an additional crystallizing or membrane filtration step. The conditioner and activating agent may be added before or after spray drying.
Patent GB-1204814-A (GB)
Title: A method of and apparatus for the production of tapered metal bars
IPC: B21C3/08
Filed: 1968-10-25
Abstract: 1,204,814. Rolling. STAHLWERKE BRUNINGHAUS G.m.b.H. 25 Oct., 1968 [4 Nov., 1967], No. 50694/68. Heading B3M. A tapered metal bar 1 is formed by rotating a cylindrical bar about its axis and traversing a group of rolls 2 along the bar while progressively moving the rolls radially inwards. The rolls are radially adjustable by means of a transverse arm 6 whose free end follows a fixed template 5. The arm rotates a housing portion 11 which by means of cam surfaces 14, pivots the rolls radially. The rolls are skewed relative to the bar, and are conveniently mounted in the carriage of a lathe, the bar being rotated by chucks of the lathe.
Patent GB-1057850-A (GB)
Title: Improvements in or relating to internal shoe drum brakes
IPC: F16D65/22
Filed: 1963-12-24
Abstract: 1,057,850. Internal shoe drum brakes. BENBIX CORPORATION. Dec. 24, 1963 [Jan. 7, 1963], No. 50980/63. Heading F2E. In an internal shoe drum brake the shoes are held down to pads 17 on the backing plate 10 by resilient members 38, each being arranged to extend inwardly from a point or points on the shoe web 18 to a point on or adjacent to a line extending axially through the centre of pressure c of the shoe edge on the pads 17, at which point it is pivotally connected to a pin 56 which is in turn pivoted to the backing plate for limited rocking movement, the point of connection of the members to the pins being outward of the plane of the shoe webs. In the embodiment of Figs. 1 and 2, each resilient member is in the form of a piece of springy wire bent to provide a straight portion 44 arranged in the plane of the shoe web 18 and abutting same, and oppositely bent end portions 40, 42, the former passing through a hole 46 in the web to engage the other side, and the latter formed into an eyelet engaged with a retainer 54 on the pin 56. The pin 56 holds the wire in torsion away from the relaxed position shown dotted (Fig. 2). The loose fit of the end portion 40 in the hole 46 provides automatic wear adjustment, manual adjustment being provided by floating adjuster 24. In the embodiment of Fig. 4 (not shown), the resilient member is a spring clip 70, one end of which has a tab 72 extending through an opening 74 in the shoe web 18<SP>1</SP> which allows limited relative radial movement for automatic wear adjustment, the other end of the clip having a slot 76 for engagement with the pin 56<SP>1</SP> which has limited rocking movement, sufficient to accommodate normal shoe travel, on the backing plate 10<SP>1</SP>. In the embodiment of Fig. 6 (not shown), the resilient member is a resilient plate 78 whose ends 80, 82 rest on spaced parts of the shoe web 18<SP>11</SP>, the frictional engagement providing automatic wear adjustment as before when travel of the shoe exceeds that permitted by the limits of rocking movement of the pin 56<SP>11</SP> in the backing plate 10<SP>11</SP>.
Patent GB-1293418-A (GB)
Title: Processes for preparing graft polymers
IPC: C08F291/00
Filed: 1970-10-29
Abstract: 1293418 Graft polymerization process FURUKAWA ELECTRIC CO Ltd 29 Oct 1970 [29 Oct 1969] 51347/70 Heading C3G An organic polymer is grafted by a process in which (a) radicals are formed in or on the surface of the polymer (b) said radical-bearing polymer is contacted with an ozone-containing fluid and (c) the ozone-treated polymer is contacted with a monomer. Stages (a) and (b) may be carried out simultaneously. Procedures employed in step (a) are treatment with ultrasonics or impregnation and decomposition of a radical generating agent in the polymer. The polymerization of the said monomer may be carried out in the presence of an amino compound, for instance by contacting the ozonetreated polymer with such a compound prior to or during contact with the monomer. In the examples, (i) polyethylene yarn is immersed in acetic acid, treated with ultrasonic waves and then with an ozone-oxygen stream prior to being heated in an acrylic acid/nitrogen atmosphere; (ii) polypropylene filament immersed in xylene is treated with ultrasonic waves, dried, heated in an ozone-oxygen stream and then in a methyl methacrylate/ pyridine/nitrogen atmosphere; (iii) polyethylene and dicumyl peroxide are blended and moulded into a thin sheet, which is treated with an ozone-oxygen stream and heated in a methyl methacrylate/acetone solution; and (iv) polypropylene multifilaments are immersed in a benzoyl peroxide/benzene solution, heated in nitrogen, in an ozone-oxygen stream and then in an acrylic acid/dimethyl formamide/nitrogen atmosphere. The graft polymers obtained are dyed.