baber/WOPTO huggingface dataset:
Patent GB-710982-A (GB)
Title: Polyglycol ethers of phenols
IPC: C08G65/40
Filed: 1952-02-28
Abstract: A process for the production of polyglycol ethers comprises condensing an alkyl-substituted phenol with a product formed by the reaction between an aldehyde and an amide of a carboxylic acid of low molecular weight (i.e. having 2 to 7 carbon atoms in the molecule) and treating the condensation product with an alkylene oxide.  The product formed may then be sulphonated.  Suitable phenols are those in which the alkyl substituent or substituents contain together 6 to 12 carbon atoms.  The alkyl-substituted phenol, the amide and the aldehyde are preferably reacted in equimolecular proportions.  The products are washing, dispersing and levelling agents.  In example (1) formaldehyde and acetamide are reacted in acid medium with isohexyl phenol, and the separated product is reacted in the presence of alkali with ethylene oxide. Similarly reacted are (2) formaldehyde, acetamide, dodecyl phenol and ethylene oxide; (3) caproic acid amide, formaldehyde, isododecyl phenol and ethylene oxide; (4) salicylamide, formaldehyde, isooctyl phenol and ethylene oxide; (5) acetamide, formaldehyde, dodecyl phenol and ethylene oxide.  The latter product is sulphonated by heating with urea and amidosulphonic acid and neutralized.
Patent GB-312130-A (GB)
Title: Improvements in or relating to gramophone electrical "pick-up" devices
IPC: H04R11/08
Filed: 1928-02-21
Abstract: 312,130. Copp, J., Tait, F., and Tait, A. C. Feb. 21, 1928. Phonographic recorders and reproducers; diaphragms; magnetic instruments. - A phonographic recorder or reproducer comprises a two-part casing 1, 2 secured together by screws so as to clamp therebetween a non-magnetic diaphragm 3 to the centre of which is secured a magnetic disc 3' which co-operates with the magnet poles 9 and has the inner end of the stylus holder 13 bearing thereon or fixed thereto. The holder 13 passes through a recess 12 in the part 2 of the casing and is eccentrically mounted on a spring 16 secured by screws to the part 2. Alternatively, one portion of the spring 16 may be thicker than the other. Damping means are provided for the diaphragm and/or stylus holder. As shown, two resilient strips 18, with or without buffer pads 19, are clamped at one end between the parts 1, 2 of the casing and bear at their other ends on the disc 3' and holder 13 respectively. A right and left hand threaded screw 21, carried by the bridge 20 of the part 2 and passing through tapped holes in the strips 18, varies the pressure of the pads on the diaphragm and holder. The threads of the screw 21 may be slightly different in pitch to allow of fine adjustment of the air gap between the disc 3<1> and poles 9 which may also be adjustable to and from the diaphragm by means of screws through the magnet frame and back plate of the casing, the final position being maintained by a locking- screw. Ajustment of the air-gap can also be effected by surrounding the screws, which secure the two parts of the casing together, by helical springs. The recess for containing the magnet system is eccentrically located in the casing, the mass of which is greater on the side carrying the stylus-holder. The bridge, piece 20 may be dispensed with, if desired, a small projecting lip being provided on the part 2 for carrying the screw 21. The tone-arm sleeve 5 is secured to the part 1 of the casing by screws 6 through a rubber disc 7. The portion 3 of the diaphragm is made of oiled silk, rubber, paper, gauze. woven fabric &c. whilst the disc 3<1> is of soft iron, mild steel or alloy having low hysteresis and eddy current losses. These two parts are secured together by an adhesive, such as resin, shellac, gum &c., by mechanical fastenings, or by electrolytic means. Fig. 8 shows a modified form of diaphragm comprising a conical non-magnetic portion 23 having magnetic rings 24, 25 attached concentrically thereto, the ring 24 responding to higher frequencies and the ring 25 to lower frequencies. In a further modified form of diaphragm, Fig. 9, a very thin non-magnetic conical metal diaphragm 26 has a central cone 27 of soft iron &c. electrolytically joined thereto. The Provisional Specification describes a modified arrangement for damping the diaphragm.
Patent GB-811708-A (GB)
Title: A rain or sun shield for use in conjunction with spectacles
IPC: A61F9/04
Filed: 1955-02-23
Abstract: 811,708. Spectacle shields. WEBER, G. E. May 23, 1956 [Feb. 23, 1955], No. 5428/55. Class 97(1) A rain or sun shield for shielding spectacles comprises a flexible body carrying a head-engaging band 6, the body having an elongated hood portion 1 merging into downwardly extending side portions 3, adapted to overlie the cheeks of the wearer and tongue portions 4 which are brought together and secured so that the hood portion 1 will become bowed and the tongue portions 4 will form a strip adapted to overlie the nose or upper lip of the wearer.
Patent GB-449202-A (GB)
Title: Improvements in or relating to synchronous electric motors of the squirrel cage type
IPC: H02K19/14
Filed: 1935-02-20
Abstract: 449,202. Alternating-current motors. CROYDON ENGINEERING CO., Ltd., 80, Gloucester Road, Croydon, FIRMIN, P. S., The Shanty, Wallington Green, Surrey, and PAYNE, C. F. E., 133, Alexandra Road, East Croydon. Feb. 20, 1935, No. 5455. [Class 35] In a synchronous motor of the squirrel cage type, locking of the rotor at synchronous speed is obtained, without the use of peripheral synchronizing grooves, by means of holes in the core 1 underneath the bars. As shown, the squirrel cage bars are located in slots 3, and between these slots and the axis are provided arcuate holes 2 equal in number to the number of stator poles. Some or all of the rotor laminations are formed with slots so that the holes 2 extend partly or wholly through the complete core.
Patent GB-835839-A (GB)
Title: A method of and an apparatus for gas analysis
IPC: G01N27/74
Filed: 1958-02-20
Abstract: 835,839. Magnetic tests. HARTMANN & BRAUN A.G. Feb. 20, 1958 [March 5, 1957], No. 5541/58. Addition to 824,854. Class 37. According to the parent Specification, the proportion of oxygen in a gaseous mixture is determined by submitting the mixture to a reaction in which oxygen is liberated or absorbed and comparing the oxygen content before and after the reaction by a para-magnetic oxygen meter in which heated wires H1 ... H4 are connected in a bridge circuit, the wires H1, H3 being in a magnetic field. Wires H3, H4 are subjected to the gas mixture that has been reacted and wires H1, H2 to the unreacted mix. ture. The differential cooling effect produces a reading on MD from which the required information can be obtained. The present improvement consists in the addition of resistors R1, R2 and meter MA to form a second bridge whereby the oxygen content of the unreacted mixture can be read directly. If the meters used are not of sufficiently high resistance, a further resistor R3 having a resistance equal to that of MA is connected as shown and a value of R1, R2 is chosen such that its ratio to the resistance of MA is the same as that of resistors H1 ... H4 to the resistance of MD.
Patent GB-1416906-A (GB)
Title: Cattle stall arrangement
IPC: A01K1/00
Filed: 1973-02-05
Abstract: 1416906 Cattle stalls DORMANN-NORMBAU KG 5 Feb 1973 [4 Feb 1972] 5552/73 Heading AIM Cattle stall arrangement consists of several individual boxes 11-16 arranged in rows 4, 5 with a stall lane 6. Dividing walls 7, 8, 9, 10 are movable in slides 19 so that the stall lane can be divided into boxes leaving the row 4 or 5 open for cleaning out. Slides 19 can be in the floor but preferably they are secured on the ceiling so that they do not impede cleaning of the floor. Feeding and watering troughs 18 are provided in each individual box adjacent to the fixed walls 2, 3 and so arranged to leave the floor area clear. In an alternative arrangement the dividing walls 7, 8, 9, 10 can be raised.
Patent GB-731476-A (GB)
Title: A draft device for a trailer or some other trailed object, connected to a tractive vehicle
IPC: B62D53/02
Filed: 1953-02-27
Abstract: 731,476. Tractor-implement connections. LIHNELL VAGN AKTIEBOLAG. Feb. 27, 1953 [April 18, 1952; April 30, 1952; Oct. 23, 1952], No. 5553/53. Class 6 (1). [Also in Group XXXII] An implement is provided with a draw-bar 1 axially located by stops 18 in a fitting 2 having a journal rotatable in a member 5 secured to the tractor rear axle 11. To transfer weight from implement to the tractor rear wheels, the draw-bar 1 is extended forwardly from the fitting 2 and is provided with one or two rollers 15 engaging two or. one arcuate track 13. Pins inserted through holes 14 may locate the draw-bar 1. The draw-bar may be secured to the tractor and the arcuate tracks to the trailer.
Patent GB-652754-A (GB)
Title: Silicone greases and method of preparation
IPC: C09D183/00
Filed: 1948-02-25
Abstract: A lubricating grease consists of an organo-silicon polymer and less than 30 per cent of lithium salt of a fatty acid with at least 8 carbon atoms in the molecule.  The lithium soap may be dispersed in a relatively low-boiling (e.g. 300-40 DEG  F.) petroleum fraction, mixed with a liquid silicone, the mixture heated until homogeneous and the petroleum solvent then removed by evaporation. When using relatively very low-boiling petroleum solvent, e.g. petroleum ether, pressure may be necessary to attain the solvation temperature of the soap.  The silicone may have the formula <FORM:0652754/IV (a)/1> R1, R2, R3, R4 and R5 being the same or different alkyl, aryl, alkaryl or aralkyl radicals and n a whole number greater than 1.  Examples are dimethyl, diethyl, ethyl methyl, diphenyl, ditolyl, phenyl tolyl, methyl phenyl and ethyl phenyl silicones.  Other suitable compounds are described in Specifications 583,875, 583,878 and 585,400.  Small amounts of other ingredients, e.g. corrosion and oxidation inhibitors may be added to the grease, e.g. aryl fatty acids or soaps thereof, naphthenic acid or naphthenates, aliphatic amines, or metallic soaps such as zinc myristate.  All the examples use lithium stearate which is mixed in example (1) with phenyl silicone, (2) with dimethyl silicone, (3) dimethyl silicone, polybutene also being included, (4) diethyl silicone, (5) a mixture of dimethyl and diphenyl silicones, (6) a mixture of dimethyl and diethyl silicones, (7) a mixture of phenyl and ethyl silicones.ALSO:A lubricating grease consists of an organo-silicon polymer (see Group IV (a)) and a lithium salt of a fatty acid with at least 8 carbon atoms in the molecule.  Preferably, lithium stearate is used.  Small amounts of other ingredients, e.g. corrosion and oxidation inhibitors may be added.  Examples are aryl fatty acids or soaps thereof, naphthenic acid or naphthenates, aliphatic amines, or metallic soaps such as zinc myristate.
Patent GB-664271-A (GB)
Title: Improvements in and relating to the production of polymeric compounds
IPC: C08G73/02
Filed: 1949-03-02
Abstract: Polymeric compounds are made by heating substantially equimolecular proportions of (1) epichlorhydrin which may be formed in situ from alpha- or beta-glycerol dichlorhydrin and alkali; and (2) a bifunctional compound having its functional groups separated by a chain of at least four carbon atoms and having a secondary amino group as one functional group and a hydroxyl group or another secondary amino group as the other functional group together with (3) a quantity of alkali at least equivalent to the chlorine content of the epichlorhydrin. Suitable bifunctional compounds are 4-41-dipiperidyl; para-N-alkyl substituted amino phenols, e.g. para-methyl aminophenol; and bis-4,41-(N-methylaminophenyl) methane. All three reactants may be heated together, or the epichlorhydrin may be reacted with 50-100 per cent of the bifunctional compound and the product heated with the alkali and remaining bifunctional compound, or one mol. of the bifunctional compound may be reacted with two mols. of epichlorhydrin and its equivalent of alkali to form a diepoxide which is heated with a further mol. of bifunctional compound containing an alkaline catalyst.  Up to 90 per cent of the bifunctional compound may be replaced by meta- or parahydroxy benzoic acid or by a dihydric phenol wherein the carbon atoms linked to the hydroxyl groups are separated by at least one other carbon atom, e.g. hydroquinone; resorcinol; or 3,31- and 4,41-dihydroxy diphenyls.  All four reactants may be heated together or a two-stage process may be used, e.g. 1 mol. of dihydric phenol, 2 mols. of epichlorhydrin and 2 mols. of alkali are reacted to form a bis-glycidyl ether which is reacted with 1 mol. of the bifunctional compound; or mixtures of the bifunctional compound with the dihydric phenol or with meta- or parahydroxy benzoic acid may be used in both stages.  In examples: (1) epichlorhydrin, 4,41-dipiperidyl dissolved in ethanol and aqueous caustic soda are heated under reflux and the precipitate after being washed and dried could be drawn into fibres; (2) hydroquinone, epichlorhydrin and caustic soda are reacted to give hydroquinone bis-glycidyl ether which is refluxed with 4,41-diperidyl in presence of alcohol and caustic soda; (3) para-methylaminophenol sulphate, epichlorhydrin, caustic soda sufficient to liberate free para-methylaminophenol and alcohol are refluxed and caustic soda added to form a product which could be drawn into fibres; (4) 4,41-dipiperidyl, hydroquinone, epichlorhydrin, caustic soda, water and alcohol are refluxed; (5) 4,41-dipiperidyl, parahydroxybenzoic acid, epichlorhydrin, caustic soda, water and alcohol are refluxed. Specifications 275,622, [Class 2 (iii)], 466,344, 628,821, 652,024 and 652,030 are referred to.
Patent GB-925754-A (GB)
Title: Improvements in or relating to apparatus for and methods of producing programmes forcontrolling the selection of needles of a knitting machine
IPC: G05B19/14
Filed: 1961-02-15
Abstract: 925,754. Punching Jacquard patterns. A. CORBAZ. Feb. 15, 1961 [Feb. 15, 1960], No. 5705/61. Drawings to Specification. Class 142 (2). The invention concerns the punching of a pattern band for controlling needle selection in a knitting-machine in which the total number of knitting stations is divided into groups, each group of stations knitting one row of stitches. An operative presses buttons which supply pulses representing colours to corresponding magnetic tape recording heads. When the information for a row of stitches has been recorded, a motor controlled by a pulse counter drives a multipole switch to connect the buttons to another group of heads whereby information for the next row of stitches is recorded on tracks alongside the first group of tracks. The total number of heads and tracks is equal to the total number of knitting stations, plus an extra head and track for operating the counter. When all the tracks have been so recorded in successive groups, they are played back simultaneously to control a jacquard punching machine. In the apparatus described, twentyfour knitting stations can be arranged in twelve groups of two or in eight groups of three, separate motor-driven multipole switches being provided for each arrangement, the buttons being connected to either of them by a manuallyoperated switch.
Patent GB-569216-A (GB)
Title: Improvements in cells for the electrolysis of magnesium chloride fusions
IPC: C25C3/04
Filed: 1943-04-10
Abstract: 569,216. Electrolysis of magnesium chloride. MATHIESON ALKALI WORKS. April 10, 1943, No. 5790. Convention date, March 21, 1942. [Class 41] [Also in Group V] Partitions separating anode and cathode in cells for electrolysis of magnesium chloride fusions are cast or moulded of a refractory composition comprising upwards of 60 per cent of alumina or zirconia and about 5-15 per cent silica. A minor proportion of zirconia may be included where alumina is the major constituent or alumina where zirconia is. A suitable composition for casting consists of 65 per cent alumina, 20 per cent zirconia, 10 per cent silica and 5 per cent sodium oxide. The oxides may be moulded with a silicate binder, e.g. sodium silicate. The partitions, which are partially immersed in the electrolyte, are preferably in the form of a rectangular arch 6, 7, 8 with a downwardly-tapering web portion 9.
Patent GB-980591-A (GB)
Title: A process for the manufacture of 2-dehydroemetines
Inventor: BROSSI ARNOLD DR
IPC: C07D455/08
Filed: 1963-02-13
Abstract: The invention comprises a compound containing a cation of the formula <FORM:0980591/C2/1> or an N-acyl derivative thereof; in association with an anion derived from an inorganic or organic acid (other than an acid having a degradative effect on said cation) and acid addition salts thereof, and the preparation of 2-dehydroemetines or their N-acyl derivatives by the oxidation of 2-dehydroisoemetines or their N-acyl derivatives with a mercuric salt to give a compound of the formula IV, which is subsequently reduced.  If desired, any acyl groups may be removed after the reduction.  In a variation, the intermediate of the formula IV may be acylated prior to the reduction step. The starting material may be an optical enantiomer or a racemic 2-dehydroisoenetine, and in the latter case the optically active 2-dehydroemetines may be isolated from the reaction product.  The oxidation is preferably carried out at elevated temperatures, suitably 30 DEG  to 60 DEG  C.  The reduction is suitably carried out by alkali and alkaline earth metal metal hydrides in a suitable solvent.  When the starting material is an N-benzoyl derivative, the reduction produces an N-benzyl-dehydroemetine from which the N-benzyl group may be removed by hydrogenolysis.
Patent GB-991252-A (GB)
Title: Improvements relating to vehicle escape systems
IPC: B64D25/10
Filed: 1962-02-16
Abstract: 991,252. Aircraft ejection seats. J. MARTIN. Feb. 12, 1963 [Feb. 16, 1962], No. 5991/62. Heading B7G. An aircraft ejection seat has a cockpit-canopy breaker comprising a piston and cylinder assembly, one component of which is attached to the seat so that the other component, which carries a striker adapted to rupture the canopy, is extended towards the canopy when gas is supplied to the assembly by explosive means. In the Figure, the assembly is mounted between two side plates 5 (one shown in outline) attached to the top of the seat 4, and comprises a fixed cylinder 1 and plunger 2 having a bifurcated upper end in which a blade-like striker 6 is mounted on pivot 21. Bores in the plunger contain a gas-producing cartridge 13, and a firing pin 10 biased towards the cartridge by spring 16. The firing pin is restrained by a sear 9 passing through a slot 19 in the pin and abutting an antifriction roller 20 in the slot. Entry of the plunger into the cylinder is limited by a shear pin 22. On ejection, e.g. underwater, the seat moves towards the canopy 23, and at contact, the plunger is driven into the cylinder, shearing pin 22. A cam 11 on the plunger displaces a lever 7 through roller 8, to withdraw the sear, cocking and releasing the firing pin. The gases so generated thrust the plunger and striker against the canopy to shatter it. Specifications 583,257 640,520 652,131 711,234 763,580 and 991,251 are referred to.
Patent GB-248757-A (GB)
Title: Method of manufacturing composite wood panels
IPC: E04C2/12
Filed: 1926-03-03
Abstract: 248,757. Moralt, A. March 4, 1925, [Convention date]. Composite blocks. - Panels are formed by cutting a veneer sheet into strips b of equal width to avoid waste, arranging the strips on edge as shown in end view, and gluing or clamping them together. The blocks thus formed are covered on both sides with thin veneer boards e arranged with the grain across the strips.
Patent GB-367188-A (GB)
Title: Improvements in centrifugal pumps
IPC: F04D29/60
Filed: 1931-02-26
Abstract: 367,188. Centrifugal pumps. DRYSDALE & CO., Ltd. and YOUNG, J., Bon- Accord Works, Yoker, Glasgow. Feb. 26, 1931, No. 6020. [Class 110 (i).] The casing 1 of a centrifugal pump has trunnions 2, 2<1> integral with it and coaxial with the pump spindle. The trunnions are carried in bearings 5, 5<1> so that the casing is floatingly supported, and is free to expand and contract with variations of temperature without occasioning departure from alignment. The trunnions 2, 2<1> form the walls of stuffing-boxes 7 surrounding the pump spindle, and the bearings 5, 5<1> are cooled by water jackets which also cool the housings 6 of the pump bearings. Clearing spaces 10 are left between the inner faces of the trunnion supports and the end faces of the pump casing.
Patent GB-695453-A (GB)
Title: Improvements in or relating to looms
IPC: D03D49/24
Filed: 1950-03-10
Abstract: 695,453. Looms for weaving two fabrics simultaneously. SOC. FABBRICA TESSUTI: INDUSTRIALI BREVETTI SCAMPERLE. March 10, 1950 [March 11, 1949], No. 6053/50. Classes 142(ii) and 142(iii) When weaving narrow fabrics, such as ribbons, a supplementary shuttle box 4 and picking stick 9 are provided at the centre of the slay so that the two fabrics T, T<SP>1</SP> can be woven within the width of the loom. Picking motions. The central picking stick 9 is operated by suitable mechanism from the usual picking sticks 5, 8. In one embodiment, rods 13, 14 connected to the picking sticks 5, 8, move the picking stick 9 alternately. Buffer springs 11<SP>1</SP> are provided and leaf springs 12<SP>1</SP> brake the central picking stick.. In an overpick loom the rods 13, 14 may be operated by links and levers from the vertical picking shaft.
Patent GB-1477282-A (GB)
Title: Piston-valve control device
IPC: F15B13/04
Filed: 1975-02-12
Abstract: 1477282 Fluid-pressure servomotor systems W VOLKI 12 Feb 1975 [6 March 1974] 6067/75 Heading G3P In a solenoid operated piston valve a throttle 11  is provided in the passageway 6 leading to a work port. When solenoid 8 is actuated to shift the valve to the left the pressure on each side of the throttle is fed to respective ends of the valve to produce a resultant force opposing the opening force of the solenoid. In an alternative embodiment, Fig. 2 (not shown) the throttle is provided within an axial passage in the piston valve. In a further embodiment, Fig. 3 (not shown) passages are provided in the piston so that in the neutral position the inlet (28) is connected to exhaust (24).
Patent GB-1446442-A (GB)
Title: Heat treatment apparatus
IPC: F23C99/00
Filed: 1973-02-08
Abstract: 1446442 Heat treatment of pipes P T MADDOCK 29 Jan 1974 [8 Feb 1973]  6129/73 Heading C7N [Also in Division F4] The internal surface of a pipe is heated by at least one radiant heater mounted at one end of a radial supply pipe for a combustible gas medium the radial supply pipe extending perpendicularly from the axis of a rotatable supply pipe. In an embodiment compressed air and propane are fed through pipes 1 A and 2A via valves 1 and 2 into mixing chamber 6 and into rotatable supply pipe 10, manifold chamber 12, branch pipes 13A and 13B, telescopic arms 15A and 15B burners 17 which may rotate at 0-12 r.p.m. where they preheat pipes 21 and 22, which may be of internal diameter 3' to 7', prior to butt welding. The supply pipe 10 may be rotated by pneumatic motor 4 fed with compressed air and reduction drive 5. The rotatable supply pipe 10 and associated rotating means may be mounted in an adjustable frame 23 having telescopic legs which may be clamped and bearing spring-loaded wheels to allow movement of the frame along the pipe, the rotatable supply pipe being either aligned with the longitudinal axis of the metal pipe or located so that the burners are nearer the lower part of the metal pipe than the upper part of the pipe.