baber/WOPTO huggingface dataset:
Patent GB-615370-A (GB)
Title: Improvements in or relating to the production of poly-pentaerythritols
IPC: C07C31/24
Filed: 1946-08-02
Abstract: Pentaerythritol and/or low molecular weight polymers thereof are polymerized by heating, preferably at 100 DEG  C. or higher, with an organic sulphonic acid.  The sulphonic acid may be melted or dissolved in a non-aqueous solvent.  Water is removed from the reaction mass, e.g. together with an entraining liquid such as a hydrocarbon or chlorinated hydrocarbon which after condensation and separation from the water is returned to the reaction.  The reaction may be stopped by cooling when sufficient water has been removed. The product may be treated, e.g. with ether, chloroform or benzene, to dissolve residual sulphonic acid or ester and leave the polypentaerythritols.  Sulphonic ester may be removed by neutralization or saponification.  The polypentaerythritol may be purified from pentaerythritol by crystallization from water.  In example (1) pentaerythritol is polymerized by heating with p-toluene sulphonic acid in tetrachlorethane until 1/2 mol. of water/mol. of pentaerythritol has been removed.  In example (2) reaction is continued until 3/4 mol. of water have been removed.  In example (3) methane sulphonic acid replaces p-toluene sulphonic acid.ALSO:Pentaerythritol and/or low molecular weight polymers thereof are polymerized by heating, preferably at 100 DEG  C. or higher, with an organic sulphonic acid.  The sulphonic acid may be melted or dissolved in a non-aqueous solvent.  Water is removed from the reaction mass, e.g. together with an entraining liquid such as a hydrocarbon or chlorinated hydrocarbon which after condensation and separation from the water is returned to the reaction.  The reaction may be stopped by cooling when sufficient water has been removed. The product may be treated, e.g. with ether, chloroform or benzene to dissolve residual sulphonic acid or ester and leave the polypentaerythritols.  Sulphuric ester may be removed by neutralization or saponification.  The poly-pentaerythritol may be purified from pentaerythritol by crystallization from water. In example (1), pentaerythritol is polymerized by heating with p-toluene sulphonic acid in tetrachlorethane until 1 mol. of water/mol. of pentaerythritol has been removed.  In example (2), reaction is continued until 1/2 mol. of water has been removed.  In example (3), methane sulphonic acid replaces p-toluene sulphonic acid.
Patent GB-531998-A (GB)
Title: Batting reinforced with knitting stitches and a device for preparing same from raw material as it comes from the carding machine
IPC: D04B23/10
Filed: 1939-08-10
Abstract: 531,998. Fabrics formed by stitching together fibrous materials and threads. SZUCS, I. Aug. 10, 1939, No. 23149. Convention date, Aug. 11, 11938. [Class 112] [Also in Group VIII] Sheet fibrous material from a carding engine is reinforced by knitted stitches and so rendered suitable for garment linings, underwear &c. The fibrous material 29 is passed over a guide 26<SP>1</SP> in holes of which work a row of knitting needles 1 with hooks 12 similar to crochet hooks. The needles are free to rotate in a bed 3, 3', mounted on plungers 14, which can be moved vertically on the ends or levers 17. The lower ends of the needles are flattened and twisted at 8 and fit in combs 10, borne by arms 18, fixed to plungers 19, rollers 21 on which bear on cams 22. The arrangement is such that at each rotation of a shaft 23 the needles 1 are caused to rotate half a revolution and back, penetrating the material 29 and also seizing threads 28 from guides 27. The needles may be actuated by rack and pinion gear.
Patent GB-1273882-A (GB)
Title: Improvements in and relating to apparatus for tilting containers
IPC: B65G47/252
Filed: 1970-05-13
Abstract: 1,273,882. Endless conveyers. STORK AMSTERDAM N.V. 13 May, 1970 [14 May, 1969], No. 23183/70, Heading B8A. Apparatus for turning cans or bottles from an upright disposition to a horizontal disposition, comprises an endless conveyer chain 2 arranged to engage the central portion of the cans &c. and to overlap at its discharge end with a pair of inclined conveyer belts 6 arranged to engage the marginal portion of the cans &c. In operation, the belts 6 are driven at a higher speed than the chain 2 to effectively withdraw the cans &c. from beneath and thereby tilt the cans &c. into a horizontal disposition. The belts 6 can be adjusted vertically in respect of the chain 2 and are adjustable horizontally in respect of each other. In an alternative embodiment (not shown), the belts 6 are replaced by a wheel having outwardly inclined faces.
Patent GB-1426205-A (GB)
Title: Sampling metal melts
IPC: G01N1/12
Filed: 1973-05-16
Abstract: 1426205 Sample moulds LAND PYROMETERS Ltd 15 May 1974 [16 May 1973] 23305/73 Heading B3F A device for use in sampling molten metal from a ladle stream comprises sectional metal mould 12A, 12B having a metal inlet tube 14 in which in use there is cast a pin sample integral with the sample east in the mould. Inlet tube 14 may be formed in sections each integral with a mould section or may be clamped between part-cylindrical extensions of the mould sections as shown in Fig. 1. The mould sections may be made of steel or copper and are clamped together by a spring clip 15 or a wrapping of tape. The inlet tube may contain a deoxidant in the form of an aluminium, titanium or zirconium wire. The device may have a second pin sample tube 20 extending outwardly from the mould in a direction parallel to or opposed to that of sample tube 14. For use the device is held in a metal nest 17 having an outer cardboard shield 18 and mounted on the end of a pole 19, the molten metal in the embodiment shown flowing into sample tube 14 and out by pin sample tube 20. The mould preferably provides a cast sample having two flat parallel faces.
Patent GB-1044106-A (GB)
Title: Releasable fastening devices
Inventor: DAVIES PETER EDWARD CHARLES
IPC: F16B5/06
Filed: 1965-06-01
Abstract: 1,044,106. Clamps. ESSO RESEARCH & ENGINEERING CO. June 1, 1965, No. 23366/65. Heading E2B. [Also in Division A1] A releasable fastening device for fastening flexible sheet material 3, 4 comprises a slotted external tubular member 1 and a core member 12 of resilient material, e.g.: closed cell sponge rubber having a diameter substantially equal to the inside diameter of the tubular member the flexible sheet material being adapted to be held between the core member and the tubular member. The device is applicable to a vacuum silage assembly [see Division A1.).
Patent GB-1341876-A (GB)
Title: Tuning arrangements
IPC: H03J3/18
Filed: 1971-04-19
Abstract: 1341876 Transistor amplifying circuits; radio receiving circuits LICENTIA PATENTVER W ALTUNGS-GmbH 19 April 1971 [13 March 1970] 23736/71 Headings H3Q and H3T [Also in Division H1] In a V.H.F. tuner a quarter-wave resonant circuit preceeds a half-wave resonant circuit. An embodiment comprises transistor 10 in common base connection, its input circuit comprising trimmer capacitor 17, varactor diode 4 for tuning and a bifilar inductor 11, 12 (see Division H1). The output circuit comprises a half-wave line 23 tuned by means of varactor diode 9 which is in series with trimming inductor 25; a shunt capacitor trimmer 24 is also provided.
Patent GB-805606-A (GB)
Title: New polyhydrophenanthrene compounds
IPC: C07D307/00
Filed: 1955-01-14
Abstract: The invention comprises racemic and optically active polyhydrophenanthrenes of the general formula <FORM:0805606/IV (b)/1> in which R is a hydrogen atom, a methyl group or a free or esterified hydroxymethyl group, and X is a ketalized oxo group. In examples: (1) ethyl magnesium bromide is treated with ethoxy acetylene in ether; water, benzene and the (2 --> 4b )-lactone of 2a -methallyl-2b -carboxy - 4bb  - methyl - 7 - ethylenedioxy - 1,2,3,4, 4aa ,4b,5,6,7,8,10,10ab  - dodecahydrophenanthrene-4b -ol-1-one in benzene are added, giving the corresponding 1-ethoxy-ethinyl-1:4b -diol, which is hydrogenated in pyridine over palladium-calcium carbonate and the resulting 1-ethoxy-vinyl-1:4b -diol treated in pyridine with thionyl chloride and decomposed with aqueous ammonium bicarbonate to the (2 --> 4b )-lactone of 1:1-formylmethylene-2a -methallyl-2b -carboxy - 4bb  - methyl - 7 - ethylenedioxy - 1,2,3,4, 4aa ,4b,5,6,7,8,10,10ab  - dodecahydrophenanthrene-4b -ol, which is hydrogenated in ethanol using palladium-strontium carbonate catalyst and the product chromatographed, giving the 1b -formylmethyl derivative; subsequent treatment with osmium tetroxide and cleavage of the hydroxylated derivative with periodic acid gives the (2 --> 4b )-lactone of 1b -formylmethyl-2a  - acetonyl - 2b  - carboxy - 4bb  - methyl - 7 - ethylenedioxy - 1,2,3,4,4aa ,4b,5,6,7,8,10,10ab -dodecahydrophenanthrene - 4b  - ol; (2) the (2 --> 4b ) - lactone of 2a  - allyl - 2b  - carboxy-4bb  - methyl - 7 - ethylenedioxy - 1,2,3,4,4aa , 4b,5,6,7,8,10,10ab  - dodecahydrophenanthrene-1-one-4b -ol is treated as in (1) to give the corresponding 1b  - formylmethyl - 2a  - allyl - 4b  - ol derivative which is then ozonized to the (2 --> 4b )-lactone of 1b ,2a -di(formylmethyl)-2b -carboxy - 4bb  - methyl - 7 - ethylenedioxy - 1,2,3,4,4aa ,4b,5,6,7,8,10,10ab  - dodecahydrophenanthrene-4b -ol, or the formyl group is protected by reaction with ethylene glycol and the product treated with HOBr (from N-bromoacetamide), oxidized with chromic acid and the resulting bromo-ketone treated with potassium acetate in acetone, giving on removal of the protecting group the (2 --> 4b )-lactone of 1b -formylmethyl - 2a  - (o  - acetoxyacetonyl) - 2b  - carboxy - 4bb  - methyl - 7 - ethylenedioxy - 1,2,3,4,4aa ,4b,5,6,7,8,10,10ab  - dodecahydrophenanthrene-4b -ol.  Specification 805,605 also is referred to.
Patent GB-1342961-A (GB)
Title: Processes for preparing aromatic tetracarboxylic acids or  anhydrides thereof
IPC: B01J31/00
Filed: 1971-04-19
Abstract: 1342961 Aromatic tetracarboxylic acids and anhydrides thereof FURUKAWA ELECTRIC CO Ltd 19 April 1971 [13 March 1970 14 Mareh 1970 4 April 1970 26 Oct 1970 5 Nov 1970 10 Dec 1970] 23879/71 Heading C2C An aromatic tetracarboxylic acid or an anhydride thereof is obtained by oxidizing with molecular oxygen an appropriate tetraalkylbenzene or derivative thereof in a medium of a C 2  to C 8  carboxylic acid, in the liquid phase and in the presence of a catalyst consisting of a heavy metal (present either as the free element or combined in a compound) and bromine (present either as the free element or combined in a compound), the catalyst containing from 8 to 40 parts by wt. promine (calculated as Br) and from 3 to 25 parts by wt. heavy metal (calculated as the metal) per 100 parts by wt. of the raw material to be oxidized. Examples of tetraalkyl benzenes are durene, isodurene, prehnitene, trimethylisopropylbenzene and dimethyldiisopropylbenzene. Examples of derivatives of tetraalkyl benzenes are 2,3-dimethyltetrahydronaphthalene, octahydroanthracene, a bis(chloromethy)xylene, a chloromethylpseudocumene, a chloromethylmesitylene, a bis(hydroxymethyl) xylene, a hydroxymethylpseudocumene, a monoformyltrimethylbenzene, a dimethylisophthalic acid or a trimethylbenzoic acid. Specified heavy metals are Co, Mn, Ni, Cr, V, Mo, W and Ce. Preferably the reaction temperature is maintained at 95‹ to 180‹ C. until the starting material is converted at least to monocarboxylic acid, and thereafter raising the temperature to 180‹ to 240‹ C. for further oxidation. Similarly the catalyst may be added to the reaction mixture in two stages, namely 10 to 60% in the first stage for formation of at least the monocarboxylic acid and the remainder for further oxidation. The heavy metal salts of the aromatic tetracarboxylic acids are suitably removed from the product by treating the reaction mixture with an aqueous solution of a strong acid, e.g. by boiling the reaction mixture, then cooling it by adding it to aqueous acid and collecting the precipitate of free aromatic tetracarboxylic acid. Examples are given for the preparation of pyromellitic acid, prehnitic acid, mellophanic acid and pyromellite dianhydride.
Patent GB-500175-A (GB)
Title: Improvements relating to headstocks for sugar-cane mills
IPC: C13B10/06
Filed: 1938-08-13
Abstract: 500,175. Sugar-cane mills ; bearings. MIRRLEES WATSON CO., Ltd., and SEMPLE, D. M. Aug. 13, 1938, No. 23928. [Class 59] [Also in Group XXXIV] In a sugar-cane mill having slidable bearings 4 for the upper roller 2, the side of the gap in the headstock 1 for the bearing, on the feed side of the mill, is lined with a wear plate 7 of hard steel, such as nitrogenized steel. The other side may be lined with mild steel &c. 10. The liners may extend across the width of the headstock and cover the core holes for the bolts 9.
Patent GB-1497837-A (GB)
Title: Process for producing aromatic urethanes
IPC: C07C/
Filed: 1975-06-03
Abstract: 1497837 Production of aromatic urethane ANIC SpA 3 June 1975 [25 June 1974] 23984/75 Heading C2C Aromatic urethanes of formula wherein Ar is an aromatic radical and each of R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, is an alkyl radical or a hydrogen atom are prepared by reacting an aromatic hydroxy compound having a hydroxy group directly attached to a carbon atom of the aromatic nucleus with an aliphatic urethane. The reaction is preferably carried out at 150 to 250 C. The examples describe the preparation of N-methyl-α-naphthyl urethane and N-methyl-#-naphthyl urethane.
Patent GB-407262-A (GB)
Title: Improvements in bunching motions for pirn winding machines
IPC: B65H54/14
Filed: 1933-08-30
Abstract: 407,262. Bunching-motions for pirnwinding machines. LINEN INDUSTRY RESEARCH ASSOCIATION, and Mc- ILVEEN, J. C., Research Institute, Lambeg, Co. Antrim, Northern Ireland. Aug. 30, 1933, No. 24015. [Class 120 (ii).] Bunch-winding apparatus for pirn-winding machines of the type in which the bunch is wound by the action of ratchet and pawl mechanism, the bunch building motion being automatically released by cam action after a predetermined number of revolutions of the winding spindle and setting means being provided to bring the bunching motion into its desired starting position comprises a frame 1, Figs. 2 and 8, to be fixed to the winding machine carrying four wheels, a setting wheel A, a positioning wheel B, a ratchet wheel D and a cam wheel C, the ratchet wheel D being operated by a pawl (actuated from the guide motion) and the cam wheel C operating a finger H which, in a fixed cup winding machine guides the yarn while bunching, and in a moving cup machine holds the normal guide finger during the bunching operation. In a fixed cup machine of the Boyd type, the frame 1, Fig. 2, is fixed to the underside of the winding cup and when starting the winding of a new pirn the yarn is placed round the finger H and the setting wheel A turned so that the spring F engages in the next notch in the wheel B this rotation serving to bring a tooth on the ratchet wheel D into position to be operated by the pawl G, Fig. 6. On the second forward movement of the pawl a second tooth on the ratchet wheel is engaged and the cam wheel C thus turned so that the crank K on the shaft E falls into a recess in the wheel C allowing the finger H to fall away temporarily from the vertical, the yarn then being automatically transferred from the finger H to the ordinary guide and wound in the usual manner. In a moving cup machine of the Anderston type the frame 1, Fig. 8, is fixed to the back of the winding frame behind the winding cup slides while the cam wheel C is adapted to engage a catch M, pivotally mounted on a shaft E under the control of a spring e, the upper end of which normally engages an adjustable hook h on the guide finger H, Fig. 7. When winding a bunch, the finger H is depressed until the hook h engages the catch M, and the wheel A turned by one notch in the wheel B. The ratchet wheel D is then operated by the pawl G and at the operation of the second tooth the cam C tilts the catch M and releases the finger H. The ordinary winding then proceeds.
Patent GB-518092-A (GB)
Title: Improvements in and relating to locking devices for forging dies
IPC: B21J9/12
Filed: 1938-08-15
Abstract: 518,092. Forging- machines. LOEWY ENGINEERING CO., Ltd., and LORANT, H. Aug. 15, 1938, No. 24019. [Class 83 (iv)] In a press for upsetting work W held in a two part die 8<1>, 8<11> the press head 6 carrying the upsetting- punch 7 mounts also a conical sleeve 11 for engaging the exterior of the die parts. The sleeve has a lost motion suspension by bolts 12 from a member 10 and the pressure is regulated by hydraulic cylinders 14 supplied by flexible pipes from the main cylinder 4.
Patent GB-1499749-A (GB)
Title: Tetrahydro furfuryl-5-halogen-ouracils
IPC: C07D405/06
Filed: 1975-06-04
Abstract: 1499749 Tetrahydrofurfuryl - 5 - halogenouracils TAINO PHARMACEUTICAL CO Ltd 4 June 1975 24039/75 Heading C2C Novel compounds of the Formula I wherein X is halogen and Y is hydrogen or tetrahydrofurfuryl may be prepared by reacting a 5-halogeneuracil with a tetrahydrofurfuryl halide in the presence of an alkali metal hydroxide or carbonate and, where only a compound I in which Y is H is required, hydrolysing the resulting N,N 3 -bis(tetrahydrofurfuryl)-5-halogenouracil. Pharmaceutical compositions of the compounds I with the usual excipients show antiviral and antitumor activity when administered orally, parenterally or rectally.
Patent GB-1287546-A (GB)
Title: Improvements in empty bobbin supply devices for a bobbin changer for spindle type spinning machines
IPC: B65H67/06
Filed: 1971-04-19
Abstract: 1287546 Bobbin supply device HEBERLEIN HISPANO SA 19 April 1971 [16 March 1970] 24094/71 Heading D1F An empty bobbin supply device for a bobbin changer for a spindle type spinning machine, said changer comprising an endless conveyor aranged along each of the spindle banks and bearing gripping hooks spaced at intervals corresponding to those of the spindles, each hook being arranged to co-operate with the take-up head of a bobbin, and a loading station arranged so as to present the take-up head of an empty bobbin to each gripping hook passing at its level, the supply device comprising a reserve in which empty bobbins are stacked horizontally, a distribution device arranged to bring empty bobbins from the reserve to a tilting station where the bobbins are presented horizontally, the station being equipped with stops to temporarily retain the take-up head of an empty bobbin so that all such bobbins leave the station with their take-up heads upwardly, and a transfer device to route empty bobbins from the tilting station towards the loading station of the endless conveyor. A suitable supply device according to the invention, is shown in Fig. 1 wherein empty bobbins 5 which are stored in reserve 7 are conveyed by a distributing device 8 to a tilting device 9 wherein stops 10 or 11 co-operate temporarily with the take-up end of a bobbin 2 thus each bobbin with its take-up end upward is downwardly projected into transfer device 12. The bobbins are then routed to loading station 6 of conveyor 1. Device 8 may be actuated via a relay 28 (Fig. 2, not shown) coupled to a first detector member 29. Further detector members may be utilised to control the transfer device 12, to stop conveyor 1 when an empty bobbin accidentally blocks the lower portion of chute 26 and to indicate whether or not the reserve 7 contains any bobbins.
Patent GB-506314-A (GB)
Title: Improvements in or relating to electric heaters for liquids
IPC: F24H1/10
Filed: 1938-08-16
Abstract: 506,314. Valves combined with electric switches; heating water by electricity; mercury switches. FERAG AKT.-GES., and WYSS, E. A. Aug. 16, 1938, No. 24118. [Class 135] [Also in Groups XI and XXXVII] In an electric heater for liquids, an independent mercury switch is interposed in each current supply lead and a single tension spring acts on the switches opposed by a cam on a sleeve, frictionally mounted on the spindle of a liquid regulating valve, and carrying an indicating disc visible through a window in a cap enclosing the switches, indicating disc and cam. The mercury switches 37, 371 whose ends are flat so as to obtain an undisturbed flow of mercury, are clamped to member 35 pivoted at 34, and moved against spring 38 by cam 39 which, with its sleeve 40 and indicating disc 41 (visible through window 50), may, in the event of valve spindle 16 being turned more than one complete revolution, slip on the latter under the action of stops 42, 43. The valve spindle, held against axial movement by its collar 17, engages an internally-threaded valve member 12 seating on seat 9 and held against rotation by keys 14 sliding in longitudinal slots 13. The liquid is conducted by tube 22 through a fluid-tight insulating floor 7 cemented in the casing head, and then up through the heating elements 25 to outlet 2 as indicated by the arrows. An inner insulating casing 28, e.g. of the substance known under the Registered Trade Mark "Bakelite;" surrounds the heating elements with clearance.
Patent GB-393133-A (GB)
Title: Improvements in coin freed gas meters
IPC: G07F15/08
Filed: 1932-08-29
Abstract: 393,133. Prepayment gasmeters. CLAYTON, C. E. EVERY-, 51, Chancery Lane, London.-(Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Aug. 29, 1932, No. 24131. [Class 27.] In a coin-freed gas-meter the gasregistering mechanism 3, Fig. 1, a valveswitching device 4, a calibration device 5, and a prepayment mechanism 6 are mounted in a common casing 1 and enclosed by a common outer cover 10, Fig. 2, which has a smooth shape, is easily removable and has the same lateral dimensions as the meter casing 1, a separate cover cap 9 being provided for the devices 3, 4, 5 which must be made inaccessible by sealing, while the prepayment mechanism remains accessible. The cap 9 has lugs 14 which pass through the sides of the meter casing, and are secured thereto by screws 15, lead sealing wires being applied to holes 16 after the meter has been tested and set. The devices 3 .. 6 are mounted on a partition wall 2 and, after the cap 9 is sealed, the prepayment mechanism is inserted and the outer cover 10 applied and sealed by lead wires passing through holes 13 in lugs 11. The cover 10 can thus be removed for overhaul of the prepayment mechanism without opening the sealed and set part of the meter. The cover 10 is provided with an opening 16 closed by a removable cover-plate 17 so that price-change wheels of the prepayment mechanism may be changed without removing the outer cover 10, and without giving access to the money-box 8. The meter has two measuring chambers 22, 23 separated by a swinging diaphragm 24. A valve box 25 which is connected to supply and discharge connections 25, 27 contains two pairs of valves 28, 29, Fig. 4, operated by the switching mechanism 4 which is driven by the diaphragm. A cut-off valve 32 is arranged in the compartment 30 of the valve-box that contains the valves 29. This valve is a disc which closes an opening 33 in a cross wall 34 of the compartment 30. It is mounted on a rod 35 and can be turned bv an outside lever 36 located in a gas-free space and actuated by a regulating diaphragm, a clockwork or other mechanism in co-operation with the prepayment mechanism. In a modification, Fig. 6, the outer cover 37 is hinged at 39 to the meter casing 38 and secured at the bottom by a spring catch 41, 42 mounted on the partition wall 40 and engaging a nose 43 on the cover. The catch 41, 42 cannot be released until the money-box 44 is withdrawn.