baber/WOPTO huggingface dataset:
Patent GB-1432530-A (GB)
Title: Preparation of high molecular polyester of 1,4-butanediol
IPC: C08G63/78
Filed: 1974-08-08
Abstract: 1432530 Polyesters BAYER AG 8 Aug 1974 [10 Aug 1973] 34950/74 Heading C3R A process for the production of a polyester or copolyester by the condensation of a diol and a dicarboxylicacid dialkyl ester comprises (a) transesterifying 1 mol. of dicarboxylic acid dialkyl ester the ester being of terephthalic and/or isophthalic acid and optionally containing up to 10 mol. per cent of any other dicarboxylic acid dialkyl ester with 1À05-1À9 mols. of a diol, the diol being 1,4-butane-diol optionally containing up to 10 mol. per cent of any other diol, in the presence of 0À01-0À4% wt. of catalyst based on the weight of the said dialkyl ester, at a pressure of 2-10 bars and a temperature of 180-230‹ C.; (b) polycondensing the transesterification product in the melt at 230- 300‹ C. at a pressure of 0À1-5 mm. Hg; and (c) further condensing the resulting polyester at a temperature 5-50‹ C. below its melting point and under sub-atmospheric pressure or under an inert gas atmosphere, until its intrinsic viscosity is 0À6-1À9 dl./g. Step (a) may be carried out in batches or continuously. The optional diol preferably has the formula HO(CH 2 ) n OH where n = 2, 3, 5-10, or is cyclohexanedimethanol or neopentyl glycol. The optional dialkyl ester is preferably a C 1 -C 6  dialkyl ester of an acid of the formula HOOC-(-CH 2 ) m -COOH, where m= 0-8, or is a dialkyl ester of another aromatic dicarboxylic acid. The catalyst is preferably a tetra(C 1 -C 6 )alkyl-ester of titanic acid. A stabilizer, e.g. an organic phosphite or phosphate or a sterically hindered phenol may be added before, during or after the polycondensation. Other optional additives are reinforcing fillers, e.g. glass fibres; and flame retardants, e.g. combinations of halogen-containing organic compounds with antimony compounds, elementary phosphorus or phosphorus compounds. In the examples polybutylene terephthalate is prepared as above from dimethyl terephthalate, 1,4-butane diol using titanium tetraisopropylate as catalyst in which step (a) is carried out either continuously or discontinuously, and after the polycondensation step (b) the polyester is spun out as a ribbon and after crystallisation is granulated. The granules are then post-condensed.
Patent GB-1094326-A (GB)
Title: Rocker arm actuated slide button switch
IPC: H01H23/16
Filed: 1965-08-16
Abstract: 1,094,326. Snap-action switches. UID ELECTRONICS CORPORATION. Aug. 16, 1965 [Dec. 29, 1964], No. 34994/65. Heading H2B. A rocker arm actuated slide switch comprises a rocker arm formed with downwardly and inwardly pointed teeth 26, 27, for engaging opposite sides of a protrusion 21 of the slide switch 11 where the base of the protrusion 21 joins the rest of the slide, thereby converting downward motion of one end of the pivoted rocker arm into translational movement of the protrusion 21 and associated slide. Switch 11 is as in Specification 925,257.
Patent GB-1357486-A (GB)
Title: Preparation of 2-methyl-1,4-butanediol
IPC: C07C29/141
Filed: 1972-07-26
Abstract: 1357486 2 - Methyl - 1,4 - butanediol E I DU PONT DE NEMOURS & CO 26 July 1972 [26 July 1971] 35030/72 Heading C2C 2 - Methyl - 1,4 - butanediol is made by hydroformylating, in the presence of a conventional catalyst, 1,4 - butenediol and hydrogenating the product. 3-Methyltetrahydrofuran with tetrahydrofuran, as a by-product, are made by cyclizing 2-methyl-1,4-butanediol, e.g. by heating with H 2 SO 4 .
Patent GB-429288-A (GB)
Title: Improvements relating to prepayment meters
IPC: G07F1/02
Filed: 1933-12-13
Abstract: 429,288. Testing coins. SIMMONDS, H., Elton New House, and TAYLOR, H., 7, Heywood Street, both in Bury. Dec. 13, 1933, No. 35061. [Class 27] A testing-device for ascertaining whether coins are not too badly bent before inserting them into a prepayment meter, also serves as the setting handle of the meter. As shown, the device comprises a pair of spaced parallel plates l secured to a threaded boss n carried by the setting spindle of the meter. According to the Provisional Specification, the testing device may be combined with the cash receptacle lock ; or the device may be adapted to come before the insertion slot in the meter, and a lever operated by the handle provided to deliver an unbent-coin through the slot. 429,295. Shop counters. HOUGHTON, G. G., and HOUGHTON, L. S., (trading as HOUGHTON, A. B. & G. G.), 42, Main Street, Birmingham. Jan. 5, 1934, No. 397. [Class 116] [See also Groups XIV and X] A bracket for supporting vertical screens along the fronts of shop counters &c. comprises two sheet metal strips 4<a>, 4b bent to L-shape with the vertical limbs spaced apart and the horizontal limbs secured together, or to a base strip, a spring 6 for gripping the screen being secured to the inner face of one of the vertical limbs. The bowed spring 6 is riveted to the strip 4b, and two or more brackets are fixed to the counter by a screw through a hole 4<c> to hold the screen at its lower edge. Springs may be fixed to each of the vertical limbs.
Patent GB-426619-A (GB)
Title: Improvements in or relating to thermostats for controlling the flow of gas
IPC: G05D23/02
Filed: 1934-12-06
Abstract: 426,619. Tharmostats. SOUTH METROPOLITAN GAS CO., CHANDLER, D., and SKINNER, A. J., 709, Old Kent Road, London. Dec. 6, 1934, No. 35111. [Class 64 (ii)] In a thermostat wherein the differen tial expansion of a closed outer casing 1 relatively to an inner rod 5 in operative con tact with a valve 4 controlling the supply of gas from an inlet 2 through an outlet 3 t( burners, a flexible dia phragm 8 is provided to prevent gas passing into the space between the rod 5 and casing 1 and forming a deposit. The diaphragm consists of a sylphon bellows attached to a ring 9 and disc 12. The casing 1 has an air leak 13.
Patent GB-307048-A (GB)
Title: Improvements in retracting device for rock drills
IPC: E21B19/083
Filed: 1928-11-29
Abstract: 307,048. Ingersoll-Rand Co., (Assignees of Hansen, C. C.). March 3, 1928, [Convention date]. Percussive drills. - A rock drill, particularly of the drifter type, is provided with a disengaging power-actuated retracting device as well as with a manual screw feed motion. The drill, supported by the cradle E is fed to its work by the screw K, revolved in the feed nut L by the manual crank P. To retract the drill the fluid pressure motor R and its gearing are raised by hand, guided by the lugs q on the rods F till the pinion S engages with the pinion T secured on the screw rod K. Motion from the motor R is then transmitted to the screw K. On being released the motor drops out of gear, the fall being cushioned by rubber buffers t.
Patent GB-1073166-A (GB)
Title: Improvements in wrap-around carriers
IPC: B65D71/00
Filed: 1964-08-28
Abstract: 1,073,166. Bottle carriers. CONTINENTAL CAN CO. Inc. Aug. 28, 1964 [Sept. 3, 1963], No. 35272/64. Heading B8C. Latching means 26 (Fig. 1) on the bottom closure portions of a bottle carrier blank (11, Fig. 2, not shown) are interconnected so that portions 30 are upstanding to form spacers between adjacent bottles and detents 44 engage slots 37 to one side of the central line between the bottles. In the form shown, the blank is placed downwards on to the necks of the bottles so that as the side portions 18, 23 are pushed downwards, the necks of the bottles are moved inwards to engage portions 61. Caps are, then applied to the bottles so that when the carrier is carried by means of the hand holes 62 the arcuate portions 60 engage the bottoms of the caps to take the weight of the bottles. Crescentshaped openings are cut from the side portions 18, 23 of the blank so that the portions '66 form bottle supporting ledges.
Patent GB-765981-A (GB)
Title: Improvements in or relating to labelling bottles, cans, or like containers
IPC: B65C3/06
Filed: 1954-12-06
Abstract: 765,981. Labelling bottles and like containers. HAGELTORN, B. H. Dec. 6, 1954 [Dec. 16, 1953; July 30, 1954], No. 35282/54. Class 73. Bottles or like containers, e.g. bottles of polythene or polyvinyl chloride on which gummed labels are not easily attachable, are labelled by placing the label on the bottle and covering it with a protective sleeve of transparent material so as to hold the label between the sleeve and bottle. In one form the bottle has a circumferential recess 2, Fig. 2, of height approximately twice that of the label 5 and sleeve 3 and the label is placed on the lower part of the recess and the sleeve, which initially is on the upper part of the recess, is then slid downwardly to the position shown. Alternatively the bottle may be formed with two annular ridges 6 Fig. 5 and the sleeve 3 formed with a lower edge 7 which in the inoperative position engages the upper ridge 6, the sleeve then being moved down over the label placed between the ridges 6 so that the edge 7 engages the lower ridge as shown. In another form, the bottle is formed with a recess 2, Fig. 7, of approximately the same height as the sleeve 3 which is cemented or welded to the bottle at its lower edge 8, the label being inserted through a narrow slit 9 between the bottle and upper edge of the sleeve. In another modification, the sleeve 3, Figs. 9, 10, is formed with grooves 10 engaging ridges 6 on the bottle which is also formed with ledges 11, 11<SP>1</SP> which prevent axial displacement of the sleeve. The sleeve is provided with an inlet slit or larger aperture 13 through which one edge of the label is inserted, the sleeve then being rotated on the bottle so that the rest of the label is drawn in through the slit. The upper and lower edges of the rotatable sleeve and corresponding portions of the bottle may be formed with various arrangements of grooves and/or ridges, Figs. 11-14 (not shown) designed to prevent liquid, which may flow down the outer surface of the bottle, penetrating the space between sleeve and bottle. Ina further modification the sleeve 3, Fig. 15 (not shown) has upper and lower rims 23 which engage grooves 22 in the bottle, the grooves 22 extending in non- parallel planes so that the sleeve is non-rotatable.
Patent GB-1241002-A (GB)
Title: Peptide compounds for use as intermediates in the preparation of secretin
IPC: C07K5/117
Filed: 1968-07-24
Abstract: 1,241,002. Peptides. E. R. SQUIBB & SONS Inc. 24 July, 1968 [4 Aug., 1967], No.35341/68. Heading C2C. Novel compounds I, R-NH-NH-Y and novel compounds II, X-his-ser-asp-gly-NHNH 2   where R is H-asp-gly-; X-asp-gly-; H-ser(O- protected)-asp-gly-; X-ser(O-protected)-aspgly-; or X-his-ser(O-protected)-asp-gly-; X and Y are different protecting groups selected from CBO, BOC; CF 3 CO and O-nitrophenylsulphenyl, provided that if one is BOC the other is not O-nitrophenyl-sulphenyl are prepared by conventional methods of peptide synthesis. Intermediates isolated are H-gly-NHNHCBO. CF 3 COOH; and BOC-asp(OtBn)-O-(p-nitrophenyl). Compounds II on conversion to their azides and reaction with H-thr-phe-thr-ser-glu-leuser - arg - leu - arg - asp - ser - ala - arg - leu - gluarg - leu - glu - gly - leu - val - NH2 pentaacetate give N-protected-secretin which may be reacted with CF 3 COOH to give secretin.
Patent GB-1522985-A (GB)
Title: Portable drilling rig compound
IPC: B66D1/20
Filed: 1975-08-27
Abstract: 1522985 Internal combustion engine powerplant DRESSER INDUSTRIES Inc 27 Aug 1975 [2 Oct 1974] 35389/75 Heading F1Q [Also in Division E1] A drilling rig compound 10 includes several prime movers 11 - 16, a skid unit for each prime mover to receive the prime mover in disengageable connection, each skid unit having transmission means 11a-16a to connect with the prime mover, and several power transfer systems 18, 28, 33, 41 to inter-connect with the transmission means and arranged to transmit power from all the prime movers to a single output station, each prime mover, skid unit and power transfer system being a package transportable by helicopter. In the described embodiment, the prime movers are internal combustion engines in two opposed groups of three parallel engines each. Transmissions 14a- 16a are engaged in reverse to obtain all final rotation in the same direction. Each transmission e.g. 11a turns a propeller shaft 11b which acts through a disconnectable coupling 11c to drive a sprocket shaft of a power transfer system. Mud pumps may be driven through a power take-off system including a drive pulley and clutch, e.g. 23, 24 respectively. Each power transfer system e.g. 18 includes a fluid tight chain case containing lubricant, input and output shafts 11d, 12d passing through side walls of the chain case and sealed in rotatable relationship at bearings 17, 19. The shafts 11d, 12d carry sprockets 20, 21 connected by roller chains 22. The chain cases may be provided with ears to align with matching fences attached to a well platform. The compound 10 includes releasable clutches 27, 31 connected between power transfer systems 18, 28 and 33.
Patent GB-1414793-A (GB)
Title: Derivatives of phenylaminopyridine
IPC: C07D213/74
Filed: 1972-07-28
Abstract: 1414793 Phenylaminopyridine-sulphonamides MANUFACTURE DE PRODUITS PHARMACEUTIQUES A CHRISTIAENS SA 16 July 1973 [28 July 1972] 35510/72 Heading C2C Novel compounds (I) in which R 1  represents an alkyl group containing 1 to 4 carbon atoms and R 2 , R 3 , R 4 , R 5  and R 6  represent hydrogen or a methyl, nitro, trifluoromethyl or chloro group, with the proviso that at least one of the symbols R 2 , R 3 , R 4 , R 5  and R 6  does not represent hydrogen and the number of substituents other than hydrogen represented by R 2 , R 3 , R 4 , R 5  and R 6  does not exceed two and with the proviso that when R 1  represents a methyl group and when R 2 , R 4  and R 6  represent hydrogen one of R 3  and R 5  does not signify H and the other CF 3 , are made by standard methods. Pharmaceutical preparations having diuretic and anti-inflammatory actions contain (I) as active ingredient; the compound (I) where R 3  is CF 3 , when R 1  is Me and when R 2 , R 4 , R 5  and R 6  are H may also be utilized.
Patent GB-1527891-A (GB)
Title: Cable distortion correction
IPC: H04L25/20
Filed: 1975-08-29
Abstract: 1527891 Line equalizers SIEMENS AG 29 Aug 1975 [31 Oct 1974] 35661/75 Heading H4R In an equalizer for a base band signal received over a non-pupinized low frequency cable a measuring stage MS produces a control signal dependent on the peak-value of the base band signal at the receiver, and controls the gain of an amplifier transistor whose amplification is controlled by an R-C network in its emitter circuit in such a manner that the cable and amplifier together exhibit a substantially constant attenuation over the frequency range of the base band signal, the RC network including the source drain path of an f.e.t. As described the peak detected output signal of the amplifier EM is fed, via an amplifier AS to control the impedance of the f.e.t.'s T3 and T4 connected in series with the capacitors C1 and C2 in the emitter circuits of the differential amplifier transistors T1 and T2 to provide a frequency dependent variation of the gain of the amplifier. In an alternative arrangement, Fig. 3 (not shown) the amplifier EM is a signal common emitter amplifier with a capacitor (C4) and f.e.t. (T6) in its emitter circuit.
Patent GB-857155-A (GB)
Title: Method of producing highly condensed melamine-formaldehyde resins
Inventor: DOEHLEMANN ERNST
IPC: C08G12/32
Filed: 1957-11-15
Abstract: Melamine - formaldehyde resins capable of producing solution of high stability and clarity are prepared by heating an aqueous formaldehyde solution, having a pH within the range 8,5 to 9, to a temperature of 75 to 90 DEG C, introducing pure melamine and condensing at 88 to 92 DEG C until a water compatibility within the range 1 : 1,5 to 1 : 0,6 is obtained, adjusting the pH to 10,3 to 10,6 and finally drying. The mol ratio of melamine to formaldehyde is from 1:2 to 1: 4,5.  For the purpose of drying, an atomizer drier may be used.
Patent GB-1440458-A (GB)
Title: Solar cells and their process of manufacture
IPC: H01L31/0336
Filed: 1973-07-27
Abstract: 1440458 Solar cells SOC ANON DE TELECOMMUNICATIONS 27 July 1973 [28 July 1972] 35811/73 Heading H1K A solar cell wherein both output connections may be made in the same plane comprises a flexible insulating foil 10 on which electrode areas 11, 12 of silver lacquer are simultaneously deposited. Successive layers of cadmium sulphide 14 and cuprous sulphide 15 are deposited, a collector grid 16 is electrolytically deposited thereover, and the assembly is photoresist (or otherwise) masked to leave exposed only the end of electrode 11 and the grid 16. The assembly is immersed in a gold-plating solution opposite a platinum anode and current is supplied via electrode 11. After removal of the masking material, connection is made between the grid 16 and electrode 12 by insulating varnish 27 bridged with a conductive layer 26. The cell may be incorporated into an array; its coplanar electrodes facilitate interconnection.
Patent GB-1224924-A (GB)
Title: Improvements in or relating to bearings comprising a plurality of rows of rolling bodies
IPC: F16C19/08
Filed: 1968-07-26
Abstract: 1,224,924. Rolling bearings. SVENSKA KULLAGERFABRIKEN AB. 26 July, 1968 [28 July, 1967], No. 35845/68. Heading F2A. A bearing assembly comprises a tubular member 3 having formed on its outer surface a plurality of races 6 for rolling bodies 7, a plurality of sets of rolling bodies, one set in each race, and an outer race 8 which is shorter in length than the tubular member, the outer race having a plurality of races 9, one for each set of rolling bodies, and a plurality of outwardly directed ridges 16 on its outer surface one radially outside each race. The ridges may serve to locate the bearing in a cylindrical bore 2 of a housing 1. Sealing elements 10 are provided at each end of the outer member 8 to seal against the tubular member 3. Cooling air passes through the tubular member, and the ridges serve to reduce contact between the housing and the race thereby reducing heat flow from the housing to the race.
Patent GB-881303-A (GB)
Title: Shuttering for concrete
IPC: E04G17/18
Filed: 1957-11-18
Abstract: 881,303. Shuttering supports; supporting ceilings, piping &c. from reinforced concre te structures. WILLIAMS, C. I. Nov. 13, 1957, No. 35347/57. Classes 20(2) and 20(4) A fastening or reinforcing member 10 or 46 for use in supporting shuttering 12 or 65 relative to a girder 16 comprises a horizontal portion 17 or 48 and short or long vertical portions 21 or 49 which are screw-threaded to receive bolt members 35 or cone-shaped members 50 according as the shuttering is to be held against the upper or lower flange of the girder. The portion 17 or 48 is spaced from the upper flange 15 of the girder by members 19. In Fig. 1, the bolt members pass through transverse supporting beams 11 and walers 14 and receive clamp brackets 37 and wing nuts 38. In Fig. 8, the cone member 50 receives an outer unit 53 which passes through a waler 64 and receives a wedge 60 co-operating with a head 58. After removal of the shuttering cone member 50, unit 53 and wedge 60, another conemember may be screwed on to the vertical portion 49 and a hanger for a ceiling attached thereto. In Fig. 9, a conical shaped insert 69 having a depending portion 71 may be used to support various forms of ceiling construction or hangers for piping and conduits.
Patent GB-514345-A (GB)
Title: Improvements relating to tubular heat exchange apparatus suitable for heating air
IPC: F28D7/12
Filed: 1938-12-08
Abstract: 514,345. Field tube heat - exchangers; air heaters. STEIN & ATKINSON, Ltd. Dec. 8, 1938, Nos. 35874 and 35875. Convention dates, Dec. 22, 1937, and Oct. 27, 1938. [Classes 64 (i) and 64 (iii)] Apparatus suitable for heating air for metallurgical furnaces comprises groups A, B of Field tubes depending into a flue formed with a baffle 12, the air passing in succession through the inner and outer tubes of the group A and thence through the outer and inner tubes of the group B from a supply duct 1 to a discharge duct 8. The flue gases flow over the groups in a generally counterwise direction to the air. In a modification, the tube group B is screened from the full effect of the hot flue gases by a row of Field tubes 21, Fig. 4, through which a part of the air from the supply duct is directed by a tube 18. In another arrangement, the tube 18 is provided with a valve 26, Fig. 5, having an inlet 27 whereby colder air than that entering the duct 1 may be passed through the screen tubes. Further, the duct 1 may be closed by a valve 28 so that when heated air is not required the tubes may becooled to prevent burning thereof by fluid admitted through the inlet 27. Specification 422,571 is referred to.
Patent GB-801048-A (GB)
Title: Clutch for switch machines
IPC: B61L5/06
Filed: 1956-11-23
Abstract: 801,048. Ratchet clutches. STANDARD TELEPHONES & CABLES, Ltd. Nov. 23, 1956 [Nov. 29, 1955], No. 35881/56. Class 80 (2). [Also in Group XXX] In a machine for operating railway points an over-running clutch 2 is provided between a driving motor 1 and an intermediate gear 4 such that a positive connection between the motor 1 and the points mechanism 5, 6, 7 is only established for normal point throwing movement and remains disconnected for the trailing movement. The clutch may comprise two centrifugal levers 14 moved outwards by rotation of the motor 1 and shaft 11 to engage a dog 18 on a plate 15 connected through a'friction coupling with the gear 3. A second form of clutch, Fig. 5, comprises flyweights 24 moved outwards against springs 25 by centrifugal force to engage a drum 27. A third form of clutch, Fig. 7, has a pivoted pawl 33 moved against the action of springs 36, by acceleration, to engage a toothed wheel 40. Retardation of a plate 41 by inertia assists the engagement of the pawl 33 through the action of a driver pin 43. A control lever 45 may apply a spring 46 to the disc 41 to engage the clutch for manual operation of the points.
Patent GB-463459-A (GB)
Title: Improvements in fuel injection pumps
IPC: F02M55/04
Filed: 1935-12-30
Abstract: 463,459. Fuel - injection pumps. HODGES, R. J. Dec. 30, 1935, No. 35929. [Class 102 (i)] In a fuel-injection pump of the type in which spill ports G in the plunger are controlled by a sleeve F, which can be adjusted axially in order to vary the time at which injection ceases, the sleeve F is formed with helical grooves, which are engaged by inclined keys I on a plate J. The latter is adjustably secured to a control bar C by means of studs K passing through slots 4, in order to permit individual adjustment of the cylinders in a multi-cylinder pump. A plate J is adjusted by means of a pin inserted through a hole O. A conical extension Q is formed on the lower surface of the valve, in order to delay opening and closing, and thus secure absence both of knock and of dribble. An air pocket T communicates with the suction chamber W by means of a passage V.
Patent GB-1405422-A (GB)
Title: Wash tub
IPC: D06F1/00
Filed: 1971-07-30
Abstract: 1405422 Buckets TUP (PANAMA) SA 28 June 1972 [30 July 1971] 36070/71 Heading A4A [Also in Division D1] A bucket or bowl 7 for use as a wash tub has two groups 3, 4 of integral internal uniform parallel horizontal corrugations, the corrugations of one area being more closely spaced than those of the other. The vessel may be of circular or rectangular cross-section and is preferably a plastics moulding. The corrugations may end abruptly or merge into the smooth wall of the vessel. It may have a soap tray 6 or 8 with drain holes 6 or 9, Figs. 1 or 3.