baber/WOPTO huggingface dataset:
Patent GB-1478205-A (GB)
Title: Photographic yellow coupler compounds
IPC: C07D241/18
Filed: 1974-07-15
Abstract: 1478205 Acyl acetanilide colour couplers KONISHIROKU PHOTO INDUSTRY CO Ltd 15 July 1974 [16 July 1973] 31310/74 Heading C2C [Also in Division G2] The invention comprises compounds of formula wherein Cp represents a group derived by removing a hydrogen atom from an active methylene group of a yellow coupler having an active methylene group; Y represents (i) an oxygen atom, (ii) an unsubstituted sulphur atom, (iii) a nitrogen atom which is double bonded to a terminal atom of the Z group or which is saturated and has a substituent to satisfy its trivalency, or (iv) a carbon atom having substituent(s) other than oxo (=O) group to satisfy its tetravalency; and Z represents a non-metallic group necessary to complete, together with the C = O group, nitrogen atom and Y, a substituted or unsubstituted unsaturated heterocyclic ring of 5 or 6 ring atoms, provided that the atoms of Z which form the ring atoms of said heterocyclic ring having 6 ring atoms are not solely carbon atoms when Y has meaning (iii) or (iv) defined above. The compounds are prepared by reacting the chloro-substituted yellow coupler, Cp-Cl, with the appropriate heterocyclic compound. Compounds exemplified are of the general formula where A is t.butyl, phenyl or p.octadecoxyphenyl, B is the heterooyclic ring which may be substituted or condensed with a benzene ring, and Ar is a phenyl radical which may be substituted. The compounds of the invention are themselves photographic yellow couplers.
Patent GB-300121-A (GB)
IPC: H04Q3/00
Filed: 1928-10-29
Abstract: 300,121. Siemens & Halske Akt.-Ges. Nov. 5, 1927, [Convention date]. Automatic exchange systems.-A power-driven switch is controlled by including the clutch magnet itself in the test circuit, this magnet cutting a resistance into its own circuit so as to fall away quickly when it reaches a dead terminal. In the call-finder shown, the line relay R energizes the starting relay AN which energizes the clutch magnet SP which cuts a resistance 2 into its circuit. When the wiper C1 reaches the ungrounded terminal of the calling line the clutch magnet is de-energized and a circuit is closed through wiper D1 for relays T, P, C. Relay P extends the starting circuit to the next finder. Relay C locks T and P until its own locking circuit is opened on the release of the connection.
Patent GB-505600-A (GB)
Title: Improvements in or relating to the manufacture of hydrogenation products of furfurol
IPC: C07D307/12
Filed: 1937-11-15
Abstract: 505,600. Hydrogenation of furfural. DEUTSCHE HYDRIERWERKE AKT.-GES. Nov. 15, 1937, No. 31329. Convention date, Nov. 14, 1936. [Class 1 (i)] [Also in Group IV] Furfuryl alcohol, tetrahydrofurfuryl alcohol and pentanediols are manufactured by passing furfural in gaseous or vapour form at tem- - peratures above 100‹ C., preferably at 130- 230‹ C., over catalysts which have been described as suitable for the liquid phase hydrogenation of furfural, together with hydrogen or hydrogen-containing gases in at least 20 times the quantify theoretically necessary to produce furfuryl alcohol, preferably in 20- 500 times the quantity necessary to produce tetrahydrofurfuryl alcohol, advantageously under increased pressure, e.g. 20-500, preferably 50-250; atmospheres. Suitable catalysts are nickel, nickel-chromium, nickelcopper, copper, copper-chromium, copper-zinc, cobalt, cobalt-chromium, cobalt-copper, cobaltcopper-chromium, nickel - copper - chromium, Mickel-copper-manganese or nickel-copper-iron catalysts, with or without carriers, the said catalysts being not necessarily so highly active as in liquid phase hydrogenation. The furfural may advantageously be diluted with indifferent organic diluents, especially alcohols such as methanol, ethanol, isopropyl alcohol, butanol or tetrahydrofurfuryl alcohol. In examples: (1) freshly distilled furfural is led with hydrogen under a pressure of 200 atmospheres over a nickel-copper-manganese catalyst at 165- 175‹ C.; (2) furfural and tetrahydrofurfuryl alcohol are led with hydrogen under a pressure of 200 atmospheres over a nickel-chromium catalyst at 150-160‹ C. ; (3) freshly distilled furfural is fed with hydrogen under a pressure of 100 atmospheres over a copper-nickelchromium catalyst at 200‹ C.
Patent GB-299723-A (GB)
Title: Material for excluding rontgen rays
IPC: G03C3/00
Filed: 1928-10-29
Abstract: 299,723. I. G. Farbenindustrie Akt.- Ges. Oct. 28, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Adhesives.-Material such as cardboard is rendered impervious to X-rays by attaching paper thereto by means of an adhesive containing a lead compound, such as a mixture of litharge and glycerin.
Patent GB-977320-A (GB)
Title: Tire bead core and method of making same
IPC: B21F37/00
Filed: 1962-08-16
Abstract: 977,320. Shearing. GOODYEAR TIRE & RUBBER CO. Aug. 16, 1962 [Sept. 29, 1961], No. 31447/62. Heading B3W. [Also in Division B7] For cutting tape 14 formed of four metal wires embedded in rubber and lying in side-by-side relationship in the same plane, there is provided apparatus as shown in Fig. 7 comprising two rollers 21, 22 travelling at the speed of the tape, the roller 21 being provided with axially offset, equally circumferentially spaced transverse nipping cutters 24a-24d to sever each wire at 18a-18d respectively, and arcuate blades 26 extending between each pair of transverse cutters to sever the rubber between the cut ends 18a and 18b, 18b and 18a, 18c and 18d as shown in Fig. 3, the tape 14 being positioned between radially outwardly extending flanges 23 on the roller 22.
Patent GB-1125015-A (GB)
Title: Protective circuit for transistor bridge circuits operating as a switching system
Inventor: SCHAFER PAUL
IPC: H02M7/12
Filed: 1966-07-13
Abstract: 1,125,015. Transistor switching circuits. INSTITUT FUR REGELUNGSTECHNIK. 13 July, 1966, No. 31498/66. Heading H3T. [Also in Division H2] In a transistor bridge switching arrangement of the type in which pairs of transistors T1, T3 and T2, T4 are respectively alternately conductive and non-conductive to cause a motor M to rotate in one direction or the other, a transistor T5 is connected between the supply Ub and the bridge to prevent excess current flow should either of the transistor pairs T1, T4 or T2, T3 become simultaneously conductive. The transistor T5 is momentarily blocked at the instant of the switchover of the transistor pairs T1, T3 and T2, T4 which are thus reversed when in the currentless state. The bases of these transistor pairs are supplied with rectangular pulses of opposite polarity by a control means (not shown) the mark-space ratio of these pulses being adjustable over a range to determine the speed and direction of rotation of the motor. Rectifiers Gr1-Gr5 protect against transeint overvoltages.
Patent GB-773140-A (GB)
Title: Improvements in fuel filters
Inventor: COLLIS DAN ELDON
IPC: B01D35/00
Filed: 1955-11-04
Abstract: 773,140. Filtering liquids. COLLIS ENTERPRISES, Inc. Nov. 4, 1955, No. 31567/55. Class 46. [Also in Group XXI] . In a fuel filter, a filter chamber consists of two parts 20, 22 having an horizontal plane of separation, one part 20 being fixed to a support and having spaced inlet and outlet passages 26, 36 ; the inlet passage 26 is vertical, open-ended and unobstructed and opens into the lower part 22 from which liquid rises through an annular filter element 44 into an annular recess 34 in the upper part 20 and leading to the outlet 36, the inlet passage 26 being closed at its upper end by a valve 70 having a long stem engaged by the base of the lower part 22 to open the valve against the pressure of a spring 92 when that part is secured to the upper part. A recess in the underside of the upper part 20 houses the filter element 44 which is secured by the rim of the lower part 22 when the part is clamped thereagainst by a bail 58, Fig. 2 (not shown), screw 64 and nut 66. The stem 72 of the valve 70 is of cruciform section throughout the passage 26 and screw-threaded at its lower part 76 to hold a chuck member 82 adapted to retain a fusible plug 84 which, by melting if the temperature becomes excessive, allows the spring 92 to close the valve 70 as a fire precaution (see Group XXI).
Patent GB-1425754-A (GB)
Title: Methods of and apparatus for coating wire rod or strip material  by sputtering
IPC: C23C14/56
Filed: 1973-07-03
Abstract: 1425754 Sputtering wires, rods or strips ELECTRICITY COUNCIL 22 Aug 1974 [3 July 1973] 31592/73 Heading C7F A coating is sputtered on a strip, wire or rod, by first subjecting it to electron bombardment in a glow discharge to clean and heat it. As shown a wire 10 is passed through a first cathode of e.g. Al or stainless steel where the electron bombardment takes place, then it is passed through a part 12 of coating metal e.g. Pb, Zn or Cu. In a modification, Fig. 3, the coating part of the cathode may have alternate segments of stainless steel 16 and bars 17 of coating material which can be moved radially inwardly as the material wears.
Patent GB-843664-A (GB)
Title: Preparation of 3ª‰-hydroxy-6-methyl-25d-spirost-5-ene or the 3ª‰-acyl derivatives thereof
Inventor: KIRK DAVID NEVILLE
IPC: C07J71/00
Filed: 1957-10-09
Abstract: 3b - Hydroxy - or acyloxy-6-methyl-25D-spirost-5-enes (wherein the acyl group contains at most 10 carbon atoms) are prepared by p reacting 3b -hydroxy-or acyloxy - 25D - spirost-5-enes with an organic per-acid to form the 5a :-6a -epoxides, reacting these with a methyl magnesium halide to form the 3b -hydroxy-6b -methyl-5a :25D-spirostan-5-ol, acylating or re-acylating this at the 3-position, dehydrating the 3-acylate to obtain 3b -acyloxy-6-methyl-25D-spirost-5-enes and, if desired, hydrolysing these to obtain the 3b -ol.  Preferred organic per-acids are perbenzoic and monoperphthalic acids, the Grignard reaction is advantageously conducted with methyl magnesium bromide or iodide in a solvent, and the dehydrating agent is preferably thionyl chloride in pyridine or sulphuric acid in a carboxylic acid anhydride.  Reference is also made to dehydration during the Grignard stage by prolonged heating between 60 DEG  and 120 DEG C.  The hydrolysis to obtain the 3b -ol is advantageously effected with aqueous ethanolic potassium hydroxide.  In examples both the 3b -hydroxy- and 3b -acetoxy-6-methyl-25D-spirost-5-enes are used as starting materials, and the acylation following the Grignard stage is performed with both acetic anhydride in pyridine and decanoyl chloride in pyridine. Specification 841,870 is referred to.
Patent GB-303146-A (GB)
Title: Improvements in or relating to marine signals
IPC: B63B22/16
Filed: 1928-10-31
Abstract: 303,146. Gas Accumulator Co. (United Kingdom), Ltd., (Assignees of Svenska Aktiebolaget Gasaccumulator). Dec. 30, 1927, [Convention date.] Reflex lights.-A reflecting device for use in connection with marine signals, e.g. buoys, consists of a number of reflectors mounted in such a manner that the total angle of action amounts to 360‹. Six pyramidal reflectors 1 are arranged in a framework round the post 2 on the buoy, thus ensuring that their individual angles of action a overlap increasing the effectiveness of the signal at the extreme positions of each reflector. The base 6 of each reflector is preferably curved spherically so as to provide a small angle of dispersion c for the reflected rays. Each reflector is mounted in a square plate 7 having an aperture with flanged edges 11, 12, so that the prism reflector may be inserted from one side and be secured by the flanges and by a portion 10 of the plate 7 covering the point of the reflector base. The upper and lower edges of the plate are also flanged and secured together to form a frame which is secured to the buoy by bars 15 as shown.
Patent GB-1127775-A (GB)
Title: Improvements in the measurement of the moisture content of granular materials
Inventor: GODDING RONALD GEORGE
IPC: G01N27/22
Filed: 1965-07-24
Abstract: 1,127,775. Measuring moisture content electrically. BRITISH CAST IRON RESEARCH ASSOCIATION. July 11, 1966 [July 24, 1965], No. 31670/65. Heading G1N. A measure of the moisture content of granular material, e.g. foundry sand, is obtained by measuring the absorption of microwave power by the water in a sample which has previously been compressed to produce in it a predetermined maximum density. In the embodiment, sand is withdrawn from a vessel (12), Fig. 1 (not shown), e.g. a sand mill, into a measurement chamber, attached to the vessel, through an aperture normally closed by a plunger 13, Fig. 2. As the plunger is withdrawn to a position in which it acts as the rear side wall of the chamber the sand enters, the base 16 of the chamber being sloped downwards, to facilitate flowing of the sand into the chamber. The other two side walls 25 of the chamber are fixed on the base 16 and the top wall is formed by a plunger 22 which is reciprocated downwards, after the chamber has been filled with sand, to compress the sand to a pressure greater than 300 lbs. per square inch, at which the maximum density of the sand is obtained. While still under pressure, the moisture content of the sand is measured by transmitting a microwave signal from a klystron oscillator (72), Fig. 5 (not shown), through an isolator (73), attenuator (74), consisting of a strip of insulating material in the waveguide whose position determines the amount of power absorbed by the attenuator itself, and through the sand sample via windows 17 in the side walls 25, the windows being plugged with blocks of insulating material. The attenuated signal is then detected in a power loss detector (76), to which it is transmitted via a servocontrolled attenuator (75). To measure the power loss, the output from the detector (76) is fed via an amplifier (77) back through a switch (79) to the servocontrolled attenuator (75). With the switch (79) closed, changes in the power level of the input to the attenuator (75) cause it to adjust itself so as to return the signal of the detector (76) to its initial unattenuated level. This adjustment of the attenuator gives an indication of the power loss and therefore of the moisture content of the sand, When the measurement has been made plunger 22 is retracted and plunger 13 advanced to eject the sample from the measurement chamber. The whole operation is controlled pneumatically by the operation of spool valves (80-83), Fig.6 (not shown), the actual movement of the plungers 22 and 13 being controlled by cylinders (23), 14) whose rams (24), (15) are screwed into the plungers themselves.
Patent GB-1534367-A (GB)
Title: Oscillation-damping means in a vehicle-transmission train
IPC: F16D3/78
Filed: 1976-07-29
Abstract: 1534367 Motor vehicle transmission trains DAIMLER-BENZ AG 29 July 1976 [2 Aug 1975] 31680/76 Heading B7H In a motor vehicle transmission train comprising change-speed gearing, a propeller shaft 14 and an oscillation suppressor 20, the propeller shaft 14 is coupled to the output shaft 10 of the change-speed gearing by a radiallysoft flexible coupling 12, and the oscillation suppressor 20 is mounted on the input end of the propeller shaft 14. The flexible coupling 12 comprises a very soft rubber element 15 to which is connected a star-shaped flange 11 on the output shaft 10 and a star-shaped flange 13 fixed to the propeller shaft 14. A centring sleeve 17 inserted in the flange 13 receives a stub 18 on the output shaft 10 with the interposition of a radially-soft rubber element 19. The oscillation suppressor 20 comprises an annular mass 24 connected to a rim 23 around a triangular plate 22 by a rubber element made up of three sections 26a, 26b, 26c and having near the apices of the triangular plate 22 circumferential slits 27 with rounded ends 28. The natural frequency of the oscillation suppressor is determined by the length of the slits 27 and by the size of holes 30 in the rubber element which also permit the passage of tools for tightening the bolts securing the rubber element 15 to the flange 11. The rubber layers 29 on each side of the slits 27 serve as abutments for limiting radial deflection of the annular mass 24. In another embodiment the oscillation suppressor has two rubber elements and annular masses separated by a gap or slit, the two rubber elements being identical but one annular mass being wider than the other to produce a different frequency value and extend the frequency range of the suppressor.
Patent GB-846564-A (GB)
Title: Improvements in and relating to three phase bridge rectifying circuits
IPC: H02M7/15
Filed: 1956-10-18
Abstract: 846,564. Rectifying; automatic speed-control systems. IGRANIC ELECTRIC CO. Ltd. Oct. 18, 1956 [Nov. 28, 1955], No. 31721/56. Classes 38 (2) and 38 (4). A D.C. load such as motor M is energized from a three-phase A.C. supply L1, L2, L3 through a bridge-connected rectifier comprising three grid-controlled gas-filled discharge valves 10, 11, 12 and three other rectifiers such as gasfilled diodes 13, 14, 15. The grids of valves 10, 11, 12 each receive voltage B which is negative for the first 90 degrees of the 240 degrees during which the anode is positive to the cathode, and a voltage E which is positive for the first 60 degrees and thereafter negative until point El. At this instant the phase of voltage E is reversed and voltage E<SP>11</SP> is applied to the grid of each valve which then fires. Voltages B are derived by the half-wave rectification at 19, 25, 32 of voltages developed in secondary windings 20b, 26b, 32b of transformers whose primary windings 20a, 26a, 32a are connected to supply lines L1, L2, L3. Voltages E are developed in secondary windings 18b, 24b, 30b of transformers whose primary windings 18a, 24a, 30a are energized from half the secondary windings 37b, 40b, 43b, of transformers having primary windings 37a, 40a, 43a connected to supply lines L1, L2, L3. The phase reversals of voltages E and consequent firing of valves 10, 11, 12 occur upon firing of valves 38, 41, 44. These fire when the grid voltages which are the sums of direct and alternating voltages reach critical values. The alternating component is derived from transformers 48, 53, 56 and the direct component comprises a voltage from potentiometer 49 which forms the manual setting, and a voltage from tapping Z of resistors 58, 59 connected in series across motor M to supply feedback which may be such as to keep the motor volts constant.
Patent GB-1293007-A (GB)
Title: Printing method and apparatus
Inventor: MAITLAND ALEXANDER BREMNER
IPC: B41F15/08
Filed: 1970-06-30
Abstract: 1293007 Screen stencilling machines A B MAITLAND 30 Sept 1971 [30 June 1970] 31747/70 Heading B6C A paint manufacturer's colour chart is printed in a screen stencilling machine by spraying the various coloured inks through square apertures in the stencil 1 as the copy paper is moved by a rotating impression cylinder in contact with the underside of the stencil which is moving at the same speed. Valve and cam means are used to ensure that only those apertures 10 and colour jets 9 which are arranged along the line of contact between the stencil and the cylinder are operational. Each copy sheet 12 is removed from a feed belt 4 by the impression cylinder and after receiving the necessary printing the finished product is removed from delivery belt 5.
Patent GB-1056777-A (GB)
Title: Coating compositions
Inventor: HAMMER IRVING PETER
IPC: C09D191/08
Filed: 1965-07-26
Abstract: Coating compositions comprise (a) paraffin wax, (b) microcrystalline wax, (c) an interpolymer of 70 to 75 weight per cent of ethylene and 30 to 25 weight per cent of vinyl acetate having a melt index of 275 to 450, (d) a solid polymer of ethylene having a molecular weight of 1000 to 10,000,(e) a polyterpene resin and (f) a polyisobutylene of molecular weight 5000 to 15,000, the proportions being such as to provide a viscosity of up to 140 centistokes at 121 DEG  C. and a seal strength when applied to glassine of at least 75 gms. per inch. A wax-soluble phenolic antioxidant, e.g. 2,6-di-t-butyl-p-cresol, 2 - t - butyl - 4 - hydroxyanisole or 3 - t - butyl- 4-hydroxyanisole, may also be present, and the compositions may be used for coating paper and paperboard for food packaging. missing page 82ALSO:Coating compositions comprise (a) paraffin wax, (b) microcrystalline wax, (c) an interpolymer containing 70 to 75 weight per cent of ethylene and 30 to 25 weight per cent of vinyl acetate and having a melt index of 275 to 450, (d) a solid polymer of ethylene having an average molecular weight of 100 to 10,000, (e) a polyterpene resin and (f) a polyisobutylene of molecular weight 5000 to 15,000, the proportions being such as to provide a viscosity of up to 140 centistokes at 121 DEG  C. and a seal strength when applied to glassine of at least 75 gms. per inch.  A wax-soluble phenolic antioxidant, e.g. 2,6-di-t.-butyl-p-cresol, may also be present.  The compositions may be used for coating paper and paperboard for food packaging.ALSO:Substrates such as paper, paperboard and cardboard may be coated with compositions comprising (a) paraffin wax, (b) microcrystalline wax (c) an interpolymer containing 70 to 75 weight per cent of ethylene and 30 to 25 weight per cent of vinyl acetate and having a melt index of 275 to 450, (d) a solid polymer of ethylene having an average molecular weight of 1,000 to 10,000, (e) a polyterpene resin and (f) a polyisobutylene of molecular weight 5,000 to 15,000 the proportions being such as to provide a viscosity of up to 140 centistokes at 121 DEG C. and a seol strength when applied to glassine of at least 75 gms. per inch.  In examples glassine and carton stock are coated with compositions of the invention also comprising a wax-soluble phenolic antioxidant, e.g. 2,6-di-t-butyl p-cresol.
Patent GB-659988-A (GB)
Title: Work-feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1949-12-10
Abstract: 659,988. Sewing-machines. F A I RWEATHER, W. C. (Singer Manufacturing Co.). Dec. 10, 1949, No. 31777. [Class 112] A work feed mechanism comprises two feed dogs 20, 21, two feed advance and return eccentrics 30, 39 on a first shaft 11, and two feedlift cams 55, 56 on a second shaft 57 driven at a different speed to the first shaft. The dog 20 advances the work by two steps, after which the dog 21 returns the work by one step. The dog 20 is carried by a feed-bar 23 given feed movements by rockarms 25 on a rock-shaft 26 actuated by means of a pitman 29 connected to an adjustable eccentric 30 on the bed shaft 11. The dog 21 is carried by a feed-bar 32 given feed movements by a rock-arm 34 on a shaft 35 actuated by a pitman 38 from an adjustable eccentric 39 on the bed shaft. The eccentrics are set at 180 degrees to each other. Lift movement is given to the dog 21 by the engagement of a rock-arm 45 in a slot 41 in the feed bar 32. The arm 45 is carried by a shaft 47 having an arm 50 carrying a follower 52 in engagement with a one-lobed cam 56 mounted on a countershaft 57 driven by reduction gearing 60, 61 from the bed shaft at a third of the speed thereof. Lift movement is given to the dog 20 by the engagement of a rockarm 44 in a slot 40 in the feed-bar 23. The arm 44 is carried by a hollow shaft 46 rotating on the shaft 47 and having an arm 49 provided with a follower 51 in engagement with a two-lobed cam 55 on the counter-shaft.
Patent GB-207991-A (GB)
Title: Improvements in apparatus for creasing trousers or other articles
IPC: A47G25/66
Filed: 1922-11-21
Abstract: 207,991. Fligelstone, L., and Treurn, E. Nov. 21, 1922. No Patent granted (Sealing fee not paid). Presses; pleating.-In a device for creasing trousers, or other fabric articles, one or more pairs of rollers a, Figs. 3 and 4, are mounted on a backing b made in two parts normally pressed apart by a spring r. The parts b are tongued and grooved as shown at c, and are guided by screws working in slots k. Projections f also act as guides in slots e. In a modification, Fig. 6, rollers a are mounted on a curved metal backing w, consisting of interengaging sliding spring- pressed parts s, t. In a further modification, Fig. 8, the rollers a are mounted on a backing 15, which can be fitted within a flange 14, or recessed back of a military hair brush 13. A detachable cover 16 may be provided to enclose the bristles of the brush.