baber/WOPTO huggingface dataset:
Patent GB-1508103-A (GB)
Title: Heat-curable melamine-formaldehyde resins and process for their preparation
IPC: C08K5/521
Filed: 1976-03-26
Abstract: 1508103 Heat - curable melamineformaldehyde resin CASSELLA FARBWERKE MAINKUR AG 26 March 1976 [29 March 1975] 12236/76 Heading C3R [Also in Division B5] A heat-curable melamine-formaldehyde resin contains as latent curing agent 0À01 to 2% by weight, relative to solid resin, of a polyphosphoric acid alkyl ester prepared by reacting P2O5 at 30 to 120 C. with N mols per mol of P2O5 of a dialkyl ether and/or m mols per mol of P2O5 of an alkanol, n+m being at least 0À5 and the alkyl chain length of the alkyl ether and/or alkanol being 1, 2 or 3 carbon atoms, until a sample of the reaction product is completely soluble at 60 to 100 C. in a C1-4 alkanol or aliphatic chlorohydrocarbon. The melamineformaldehyde resin may have been prepared in the presence of an alkanol, and other modifiers may be included in the precondensation or added subsequently. It is preferred that the melamine-formaldehyde resin be diluted with water and the polyphosphoric acid ester added thereto in the form of a solution in water or a water-miscible organic solvent. The resulting solutions may be used to impregnate papers or fabrics for the manufacture of decorative laminates or for coating wood-based materials.
Patent GB-1412576-A (GB)
Title: Polyurethane elastomers
IPC: D06N3/14
Filed: 1974-03-20
Abstract: 1412576 Polyurethane elastomers and dispersions thereof BAYER AG 20 March 1974 [23 March 1973] 12277/74 Heading C3R Polyurethane elastomers are prepared by reacting together (a) an organic diisocyanate, (b) a hydrophilic chain lengthening agent of the formula wherein R represents the radical obtained by removing the NCO groups from a diisocyanate having a M.W. of 112 to 1000, X is -O- or -NR<SP>2</SP>-, R<SP>1</SP> and R<SP>2</SP> each represent a monovalent C 1-12  hydrocarbon group, R<SP>3</SP> and R<SP>4</SP> each represent a hydrogen atom or a monovalent C 1-8  hydrocarbon group and n is an integer from 4 to 89, (c) a compound which contains two terminal active hydrogen atoms and has a M.W. of 500 to 6000 and optionally, (d) a chain lengthening agent which contains two reactive hydrogen atoms and has a M.W. below 500. The elastomers may be prepared by a one-shot or prepolymer process. In the prepolymer process it is preferred to form a prepolymer from (b), (c) and an excess of (a) and then to carry out a chain lengthening reaction with (d). The elastomers are suitably formed into non-ionic, emulsifier-free dispersions, most conveniently by employing the prepolymer process and using component (a) in the form of an aqueous solution. Component (b) may be formed by reacting an ethoxylated alcohol, phenol or secondary amine with an excess of a diisocyanate of the formula followed by reaction of the resulting product with a dialkanolamine, e.g. diethanolamine, dipropanolamine and bis-(2-hydroxy-2-phenylethyl)amine. Preferred components (d) a polyester, polylactones and polycarbonates. Diols and diamines may be used as the component (d). The elastomers may be used, in particular, in the formation of coatings.
Patent GB-435794-A (GB)
Title: A process and apparatus for producing articles from moulding powder
IPC: B29B11/12
Filed: 1935-04-23
Abstract: 435,794. Moulding tablets, buttons, &c. from synthetic resin &c. powder. BISONIT GES., Marienberg, Saxony, Germany.-(Assignees of Gullich, K.; 66, Adolf Hitler Strasse, Sebnitz, Saxony, Germany) April 23, 1935, No. 12248. Convention date, April 23, 1934. [Class 87 (ii)] In moulding tablets, buttons, and other articles, patterned throughout, from superposed differently coloured moulding powders, such as synthetic resins with filling materials, or horn powder or other albuminous substances, layers of such powders disposed in a moulding trough 5 are separated into quantities for individual articles while in a non-moulded powdery condition and the separated quantities are moulded with pressure. The separation is effected by knives 3 moving through guide slots 2 in a mould cover 1 which is temporarily supported in a raised position to leave a space 9 for the material to spread into on separation. The knives may be pressed down by a common beam which can enter a grooved part 4 in the cover without pressing on the cover. After separation, the cover support is withdrawn and the cover is pressed down to mould the powder. The knives may be of thin sheet brass or steel and are shaped to rest on the bottom of the trough with their top edges flush with the cover in its pressed-down position.
Patent GB-576808-A (GB)
Title: Improvements in or relating to ticket printing and issuing machines
IPC: B41K3/40
Filed: 1944-06-28
Abstract: 576,808. Ticket printing and issuing machines. SETRIGHT REGISTERS, Ltd., TOVEE, H. J., and YAXLEY, J. V. June 28, 1944, No. 12321. [Class 106 (iii)] In ticket printing and issuing machines of the kind wherein a main shaft 22 is operated cyclically by a handle 21 to effect the printing during the first part of each cycle, and a mutilated gear wheel 52 driven from the main shaft operates through pinions 53, 54, the paper strip feeding-means and advances the serial-number printing wheels during the last part of each cycle, the portion 55 of the mutilated wheel 52 having no teeth is formed as a sector of greater radius than the root radius of the teeth of the wheel so that the sector will simultaneously engage two teeth of the pinion 53 and lock it against rotation, thus ensuring that the setting of the serial-numbering wheels cannot be falsified by pulling the paper strip through the machine. The main shaft 22 carries a stepped gear 23 for operating in known manner a differental value totalizer, and a gear 32 drives a units counter 33. Shortly after the handle 21 has left its home position, an abrupt fall 35 on a cam 34 passes a fall on a cam 36 to release the platen 38 to print a ticket on a paper strip 40. The cams then lift the platen clear of the ticket before the handle has completed half a revolution. Feed-rollers 43, 44, which may be separated by a pivoted lever 50, advances the paper strip 40 through a slot 42, being driven from a shaft 48 operated by the mutilated gear 52, which also serves to lock the shaft 48 against rotation during part of the cycle, as described above. The impression on the ticket is taken from five printing wheels 56 arranged in known manner, and from three serial-number wheels 57 by means of an ink-ribbon 58. The wheels 57 are driven from the shaft 48 through a shaft 67 carrying a pinion 70 meshing with a gear wheel 71 secured to the lower side of the units printing wheel 57. A mutilated gear 72 secured to the top of the units wheel 57 has two teeth 172 that rotate a pinion 73 when the zero face is brought to the.printing position, a gear wheel 74 secured to the bottom of the tens printing wheel being turned by,the pinion 73. The plain sector 75 of the mutilated wheel 72 has a radius greater than the root radius of the teeth so that it engages two teeth of the pinion 73 and locks it except when rotated to change the tens digit. The hundreds wheel is driven by the tens wheel in a similar manner. The front and back of the casing are closed by panels 17 engaging grooves 18, and the cover plate 19 is secured by screws and a nut 20 provided with a seal.
Patent GB-222080-A (GB)
Title: Improvements in clarionets
IPC: G10D7/06
Filed: 1924-05-20
Abstract: 222,080. Albert, L. Sept. 20, 1923, [Convention date]. Clarinets.-To improve the note B@ in the middle of the treble stave without altering the fingering, a special hole is provided for the B@ opened on operation of the speakerkey, the speaker-hole however remaining closed. The speaker-hole is opened when necessary by depressing both the speaker-key and a ring on the thumb-hole. The upper end of the speaker-key 16 pivoted at 15 lies over the plate 12 which covers the speaker-hole, the plate 12 being carried on a lever 10 pivoted at 11. Under the tail of the lever 10 lies an arm 9 carried by a shaft 2a, 2<1>, 2 which also carries the thumb-ring 1 and an arm 4. The arm 4 carries a plate 5 which lies under the tail of the lever 6 which is pivoted at 7 and carries the plate 8 covering the B@ hole. A shaft 18 carries an arm 20 lying under the key 16, and an arm 19 lying over the plate 8. At rest both holes 12, 8 are closed, the former by springs under the key 16 and arm 9 each of which is stronger than the spring tending to raise the plate 12, and the latter by a spring under the arm 20 of the lever 20, 19. By pressing the key 16 alone, the speaker-hole 12 remains closed by the arm 9, but the arm 20 is depressed, raising arm 19 and permitting the B@ hole 8 to open. By pressing the ring 1 in addition, the speaker-tube is allowed, bv depression of the arm 9, to open, but the B@ hole is closed by the plate 5. If only the ring 1 is pressed, the speaker-hole is held closed by the key 16, and the B@ hole held closed by both the arm 19 and the plate 5. In a modification the lever 10 is arranged facing the key 16 instead of underneath it. In another modification, the key 16 consists of two arms on the same side of a longitudinal hinge and is arranged to act under the tail of the lever 10. In a further modification the key 16 comprises two levers.
Patent GB-921272-A (GB)
Title: Rectifier circuit arrangement
Inventor: SMITH MICHAEL CHARLES
IPC: H02M1/088
Filed: 1960-04-07
Abstract: 921,272. Rectifying. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. April 6, 1961 [April 7, 1960], No. 12414/60. Class 38 (2). [Also in Group XL (c)] To control a number of semi-conductor controlled rectifiers disposed in parallel the firing of one provides a signal to fire the others. As shown, Fig. 5, rectifiers 3, 4, 5, 6 each having a cathode resistor R3, R4, R5, R6 are connected in parallel. On triggering rectifier 3 a voltage is developed across R3 which is applied as a triggering pulse to rectifiers 4, 5 and 6 through resistors R7, R8, R9. In an alternative arrangement (Fig. 6, not shown) a cascade firing sequence is disclosed, the firing of one rectifier providing a triggering signal for the next rectifier in sequence. The gate resistors R7, R8, R9 may be dispensed with.
Patent GB-310530-A (GB)
Title: Saw handles
IPC: B27B21/04
Filed: 1929-04-22
Abstract: 310,530. Clemson Bros., Inc., (Assignees of Clemson, G. N.). April 28, 1928, [Convention date]. Saw handles.-A saw handle formed in two parts to receive the blade between them has one of the parts provided with a number of smooth soft metal tapered projections closely fitting corresponding holes in the saw blade, screws serving to draw the two handle parts in blade clamping relation. The handle is formed with a seat portion 1 against which the blade 2 is clamped by a block 3. The part 1 is fitted with four smooth brass projections 5 - - 8 adapted to fit closely in holes in the saw blade, 6 and 7 being cylindrical and 5 and 8 squared and tapered. The projections may be separate or formed integral with a plate 9 located in a recess in the part 1. The parts 1, 3 are. drawn together by bolts 14, 15 engaging the internally threaded projections.
Patent GB-885707-A (GB)
Title: Improvements in or relating to fluid operated pick-up mechanisms
Inventor: RS FREDERICK WILLIAM FRIA
IPC: B25J15/02
Filed: 1960-04-07
Abstract: 885,707. Handling nuclear fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 7, 1960, No. 12483/60. Drawings to Specification. Addition to 808,736. Class 39(4) The pick-up mechanism of the parent Specification is modified in that the float is omitted and instead the outer tube is supported for universal movement by a carrier, the carrier being mounted for sliding movement along a track situated above the pond surface. Further, relative rotary movement between the outer and inner tubes is prevented by longitudinal keying.
Patent GB-1042923-A (GB)
Title: Hydrogenation of fatty oils
IPC: C11C3/12
Filed: 1963-03-29
Abstract: Fats and fatty oils are selectively hydrogenated by agitating the oil in contact with particles of a suitable hydrogenation catalyst, e.g. 0.02-0.5% low density reduced nickel on silica (see Division B1), suspended therein while passing hydrogen through the agitated mass of oil and catalyst, continuously withdrawing a stream of heated oil from the main agitated mass while retaining the catalyst within the main mass of oil, suitably by passing the withdrawn stream through a filter, and simultaneously adding fresh oil to the treated mass of oil so as to maintain constant the volume of agitated oil being treated. Hydrogen, which is generally passed into the oil below the surface and withdrawn above the surface, is normally recycled to the process; some of the hydrogen withdrawn is suitably used to pretreat the oil under reduced pressure in order to remove contaminants. At intervals, hydrogen is passed into the main agitated mass through the filter in order to clear the filter of accumulated catalyst. Suitable oils for treatment, which is generally carried out at 200-350 DEG  F., with pressures from atmospheric to 75 p.s.i.g., and a residence time of 80-300 minutes, are edible oils such as soyabean oil; in such cases, if the oil has an initial iodine valve above 130, products may be obtained having an iodine value below an average of 86 and a transisomer content below 50% by weight.  If similar starting oils are treated at 170-200 DEG  F. for a sufficient time to reduce the iodine value to below 115, e.g. to 100-115, the trans-isomer content is then generally 15-25% by weight.ALSO:An hydrogenation catalyst comprises 2-20% nickel supported on macroporous silica beads preferably having at least 50% of the total pore volume provided by pores having a diameter greater than 0.004 m and a specific surface area of 300 m2/g.  The catalyst particles, which suitably have a particle density of 0.7-1, and most preferably less than the density of the oil to be treated, have a size of 20-200 m , with the major portion in the range 45-150 m .  In an example, a catalyst of 100-325 mesh and a density of 0.712 was obtained by impregnating macroporous silica beads containing silica powder with 8.6% nickel formate solution and reducing the impregnated beads with hydrogen at 1000 DEG F. for 2 hours.
Patent GB-623665-A (GB)
Title: Improvements in or relating to folding flaps on articles of furniture
IPC: B61D37/00
Filed: 1947-05-09
Abstract: 623,665. Stays for hinged articles. HATHERLEY WORKS, Ltd., and ELLIOTT, C. R. May 9, 1947, No. 12549. [Class 65 (i)] [Also in Group XIV] A table, etc., flap 14 is pivoted to a main portion 22 and retained in the in-use position by a lever 11 one arm 11a of which acts as a strut. The lever is pivoted at 12 to a bracket 13, the end 11b of the strut resting against an abutment 20 carried on a downwardly extending part 21 of the main portion 22. Upward pressure on the operating arm 11c of the lever 11 disengages the strut (which may be kept in engagement by spring means 17) and allows the flap to be lowered.
Patent GB-491263-A (GB)
Title: Improvements in or relating to permament magnets for sound transforming apparatus
IPC: H04R9/02
Filed: 1937-05-03
Abstract: 491,263. Sound-reproducing devices. HAUSDORF, E. May 3, 1937, No. 12579. [Class 40 (iv)] In a magnet assembly, particularly for telephone receivers, a magnetic member 2 has the shape of an arch bounded by parallel planes, a gap 4 for the moving coil 8 is formed in the crown portion of the arch and the centre polepiece 3 is mounted in a plate member 1 extending across the base of the arch-shaped member 2. A diaphragm 7, secured to the coil 8, is supported by a ring 5 which may be permanently secured to the member 2 by webs 6 or may be detachably mounted on the magnet assembly. The space between the gap 4 and the plate 1 may be partially or wholly enclosed by side plates of a non-magnetic material to form a resonating chamber. In a modification, Fig. 3 (not shown), the resonator is formed by a member attached to the under surface of the upper portion of the member 2. Arrangements are described in which the baseplate 1, arched member 2, and the centre polepiece 3 are selectively of soft iron or of a magnetic material.
Patent GB-804586-A (GB)
Title: An apparatus for determining the number of microbes and other micro-organisms in theair
IPC: C12M1/26
Filed: 1956-04-24
Abstract: 804,586. Turbidometers. CHIRANA PRAHA NARODNI PODNIK, and VOTOCEK, E. April 24, 1956, No. 12582/56. Class 97(3) Apparatus for determining the number of micro-organisms in the air comprises a Petri dish, a second dish adjacent thereto and co-axial therewith and provided with a radial slot, means for effecting relative rotation of the Petri dish and the slotted dish, and a suction device for drawing air through said slot and over the agar on the Petri dish. In the form shown the Petri dish 8 is carried on a plate 9 rotated by a synchronous motor 10 controlled by a device 11 to make one rotation in 60 seconds. The Petri dish is surmounted by a dish 5 having a radial slot 6 and screw threaded to be adjustable in a mount 4. The dish 5 is transparent and is adjusted until a projection from the underside contacts the agar in the Petri dish. Air is drawn into the apparatus through the the slot 6 by a fan 12 driven by a motor 13.
Patent GB-765557-A (GB)
Title: Improvements in and relating to engine ignition testing
Inventor: HULLS LEONARD ROBIN
IPC: F02P17/02
Filed: 1954-04-30
Abstract: 765,557. Electric tests. ENGLISH ELECTRIC CO., Ltd. April 29, 1955 [April 30, 1954], No. 12591/54. Drawings to Specification. Class 37. [Also in Group XL (c)] In an ignition tester for an internal combustion engine it is required to relate particular occurrences in the ignition system to the crank angle and an oscilloscope on which these features are displayed has a time-base (see Group XL (c)), on which a number of marker pulses are generated by placing marks on the periphery of the flywheel such that a pulse is generated each time a mark passes a pick-up device. Two methods are described, in the first a magnetic core carrying a coil is placed close to the flywheel such that the magnetic path is completed by the flywheel. A number of holes are made in the flywheel at specified points such that when these pass the pick-up the reluctance of the circuit comprising the flywheel and coil core change rapidly, this induces an A.C. voltage in the form of a pulse across the pick-up coil. In the second method pieces of magnetic material are added to the flywheel such that their reluctance increased rapidly when the iron circuit is closed by the passing of these pieces under the pick-up coil, the pulses are then displayed as marker pips along the length of the time-base. The pulse used for triggering the time-base may be derived from a magnetic pick-up which is driven at cam-shaft speed or half-engine-speed in the case of a four-stroke engine. The timebase of the oscilloscope is arranged to be synchronized by the combined effect of the pulses derived from the two points in the engine (see Group XL (c)).
Patent GB-541772-A (GB)
Title: Accelerometers
IPC: G01P15/04
Filed: 1940-03-07
Abstract: 541,772. Accelerometers. SQUARE D CO. March 7, 1940, No. 12627/41. Convention date, March 30, 1939. Divided out of 539,437. [Class 106 (iii)] An accelerometer comprises a pointer 73 indicating the instantaneous value of the acceleration, which is carried by a shaft 72 driven from the actuating mechanism, a second pointer 90 indicating maximum values carried by a shaft 85 co-axial with the shaft 72, and means for driving the shaft 85 from the shaft 86 comprising a member 82 on the latter which carries a projection 83 which drives a floating arm 89 which is pivoted co-axially with the shaft 85 and drives this shaft by engaging a projection 108 on a disc 91 carried by it, the disc 91 having teeth 92 engaged by a pawl 95 to retain the pointer 90 in the position to which it has been moved. The apparatus described is the same as that forming the subject of Specification 539,437, the shaft 72 being driven by a gear 70 engaging a sector gear 69 attached to one of a pair of intergeared shafts 33, 53 to which are attached arms carrying weights (not shown) which rotate the shaft against spring action when the instrument is accelerated. The pointers 73 and 90 make nearly two revolutions for the maximum reading, and the floating arm 89 which forms the driving connection between the shafts of the two pointers allows the pointer 73 to return from this maximum position to zero without moving the maximum value pointer 90. The pawl 95 is formed by the bent end of a spring 93, and is released by the engagement with the spring of a lever 96 operated by a projection. 102 on a shaft 103 which is rotated by an external knob. The pointer 90 then returns to zero under the action of a hair spring 113 carried by a hub 110. Excessive movement of the parts due to shocks is prevented by the spring 113 coiling on the hub. A hair spring 80 carried by the shaft 72 prevents undesirable play and backlash.
Patent GB-1030322-A (GB)
Title: A coupling for trailer vehicles
Inventor: WRIGLEY ARTHUR
IPC: B60P1/00
Filed: 1963-03-29
Abstract: 1,030,322. Vehicle couplings. WESSEX INDUSTRIES (POOLE) Ltd. June 29, 1964 [March 29, 1963], No. 12652/63. Heading B7T. A towing tug 1 having a steerable wheel 2 is provided with pairs of lined jaws 11 which may be closed around bars &c. 10 to couple the tug with the trailer. By operating a lever 19 or other means the upper movable jaws 13 may be moved downwardly about pivots 14 to co-operate with the fixed jaws 12 and embrace the bars 10, sufficient force being applied to lift the rear wheels 4 of the tug off the ground. Other means connected above or below the coupling may be provided to turn the vehicles about their horizontal coupling axis and transfer weight from the trailer to the towing vehicle. A pivoted hook 8 is also provided to co-operate with the eye 9 of another trailer.
Patent GB-782417-A (GB)
Title: Improvements in or relating to rotors for gas-turbine engines
Inventor: PETRIE JAMES ALEXANDER
IPC: F01D5/06
Filed: 1954-04-30
Abstract: 782,417. Rivets. ROLLS-ROYCE, Ltd. March 25, 1955 [April 30, 1954], No. 12686/54. Class 89 (1) [Also in Groups XXIV and XXVI] A rivet 34 is peened at 34b to secure it in a radial boss 32 of a turbinerotorflange 28 and has a cylindrical shank engaging semi-circular recesses in the mating flanges 28, 29, with an interference-fit. The shank is circumferentially-relieved at points 35 and is locked against rotation by a T-head 34e, 34f engaging a notch 39. The shank has a stress-relieving groove 34d and a fast-spherical surface, against the shank. In a modification, the T-head is replaced by one having flat sides.
Patent GB-954909-A (GB)
Title: Improvements in or relating to hygrometers
Inventor: MCGILL ERIC FREDERICK GEORGE
IPC: G01N25/68
Filed: 1960-04-09
Abstract: 954,909. Measuring electrically. ELECTRIC & MUSICAL INDUSTRIES Ltd. April 7, 1961 [April 9,1960], No.12712/60. Heading G1N. A hygrometer comprises a pair of electrodes, e.g. of semi-conducting tin oxide, deposited on a glass plate 3 (Fig.1) and separated by a small insulating gap, the glass plate is thermo-electrically cooled by being mounted on a copper plate 13 which is connected between P and N type semi-conducting elements 6 and 7 through which current is passed from battery 11. In operation current is passed through elements 6 and 7 to cool plate 13 and cause a deposit of dew to form to bridge the gap between the electrodes on plate 3, when this is indicated by suitable means connected to the electrodes by leads 5, the temperature of the plate is measured by thermocouple 15 which may be connected in series with a second thermocouple 16 exposed to the ambient temperature to give an indication of relative humidity. Copper terminals 8 and 9 are made relatively massive in order to give fast dissipation of heat generated at these points, alternatively they may be cooled by passing liquid through internal cooling passages. The semi-conducting elements 6 and 7 may be of bismuth telluride.