baber/WOPTO huggingface dataset:
Patent GB-987000-A (GB)
Title: Process for the preparation of halogenated aromatic compounds
IPC: C07C17/093
Filed: 1963-09-23
Abstract: Chlorinated aromatic compounds are obtained by the action of hydrogen chloride on aromatic nitro compounds substituted in o-position to the nitro group by a substituent which is attached to the aromatic ring by a carbon atom of the substituent.  The other position ortho to the substituent may be substituted by another nitro group, a halogen atom or an alkyl group of 1-5 carbon atoms, and at least one other position in the ring may be substituted by a halogen atom, a nitro, alkoxy or carbalkoxy group or a hydrocarbon radical, which may itself be halogen-substituted. The substituent in o-position to the nitro group may contain halogen, nitrogen, oxygen or sulphur atoms, specified substituents being -CH3, -CH2Cl, -CHCl2, -CCl3, -CN, -CHO, -COCH3, -CH : NOH, -CH : NNH2, -C(X) : NOH, in which X represents a halogen atom or an amino group, -C(NH2) : NOH, -C(OCH3) : NOH, -C(O)OH and -C(S)NH2.  The substituent may also contain a group -NHNH2, -OH or -SCN.  The reaction may be effected in gaseous or liquid phase but, preferably, the liquid nitro compound is treated with gaseous hydrogen chloride, optionally in the presence of a liquid diluent, a number of which are specified. A diluent may be added also to the hydrogen chloride, and this diluent may be an inert gas but is preferanly chlorine, a chlorine-yielding compound or an oxidizing agent capable of oxidizing hydrogen chloride under the reaction conditions, e.g. thionyl chloride, phosphorus pentachloride, nitrosyl chloride, bromine, nitrogen monoxide, nitrogen dioxide, or a peroxide or hydroperoxide.  The proportion of chlorine or alternative diluent is less than the stoichiometric quantity required for reaction with the nitro compound.  The reaction may also be accelerated by means of ultraviolet light or X-rays.  The reaction may be effected at 20-300 DEG  C., preferably at 160-190 DEG  C., and at atmospheric pressure, although higher pressures may be applied. An example is given in which 2,6-dichlorobenzonitrile is prepared by treating 6-chloro-2-nitrobenzonitrile with hydrogen chloride and a minor proportion of chlorine.  Other specified starting materials are 1,3-dinitro-2-cyanonaphthalene, 3-chloro-1-nitro - 2 - cyanonaphthalene, 2 - nitrobenzonitrile, 2,6 - dinitrobenzonitrile, 2 - nitrotoluene, 6 - chloro - 2 - nitrotoluene, 6 - chloro -2-nitrobenzyl chloride and 6-chloro-2-nitrobenzal chloride, and reference is made also to the treatment of compounds of the phenanthrene and biphenyl series.
Patent GB-811944-A (GB)
Title: Improvements relating to fire extinguishing apparatus for oil storage tanks
Inventor: BROWN DENIS SELBY
IPC: A62C3/06
Filed: 1955-12-30
Abstract: 811,944. Fire-extinguishing apparatus. NATIONAL FIRE PROTECTION CO. Ltd. March 29, 1957 [Dec. 30, 1955], No. 37514/55. Class 47. Fire extinguishing apparatus for an oil storage tank comprises, a float 10, Fig. 1, which occupies only a small proportion of the free surface of the oil in the tank, the float 10 including a pressure vessel 11 containing fire-extinguishing<SP> </SP>material such as as a volatile extinguishing liquid, e.g. methyl bromide or chlorobromomethene, retained within the vessel by a sealing diaphragm 13 which normally closes a discharge nozzle on the vessel 11, a firing chamber 30 for a pressure generating power cartridge communicating with the interior of the vessel 11, and igniter means 35 outside the vessel 11 actuated by heat or flame for automatically firing the cartridge on occurrence of a fire in the tank whereby pressure is generated in the vessel 11 to burst the diaphragm 13 and expel the fire-extinguishing material through the discharge nozzle. In the embodiment of Fig. 1, a discharge head 16 includes a plurality of tangentially-directed reaction nozzles 27 extending from a pair of rotatable rings 20, 21 which are caused to rotate in opposite directions by the reaction of the discharge of fire-extinguishing material through the nozzles 27. An electrically insulating cover 28 is secured to the top of the discharge head 16. An igniter ring 35 is secured to the cover 28 and is connected to the cartridge in the firing chamber 30 by a quick burning fuze 34. In another embodiment, Fig. 3, the discharge head comprises a set of three mushroomshaped deflectors 40, 41, 42 which define a pair of annular discharge passages from which the fire-extinguishing material will emerge in generally horizontal sheets projected radially outwards in all directions. The igniter means is carried on a suitable support carried by the upper part of the vessel 11, for example on the flat top of the deflector 40. More than one float may be employed in larger oil tanks. The float or floats may be suitably positioned by locating wires or bars.
Patent GB-935263-A (GB)
Title: Improvements in or relating to floor polishing or cleaning machines
Inventor: BRIDGE SAMUEL DOUGLAS
IPC: A47L11/206
Filed: 1961-10-19
Abstract: 935,263. Floor polishing machines. R. G. DIXON & CO. Ltd. Oct. 19, 1962 [Oct. 19, 1961], No. 37590/61. Addition to 889,397. Class 138 (1). In a modification of the machine described in the parent Specification, the suction fan 14 is disconnectably driven through flexible drive means comprising a belt 7 and pulleys 2, 8 and clutch means comprising friction surfaces 18, 13 on the fan 14 and pulley 8 which are brought into contact by a Bowden cable acting against the force of the spring 16.
Patent GB-1140566-A (GB)
Title: Improvements in or relating to control systems
Inventor: BARR JOHN DENZIL
IPC: G05D3/14
Filed: 1965-09-03
Abstract: 1,140,566. Automatic speed control; zoom lenses. RANK ORGANISATION Ltd. Oct. 12, 1966 [Sept.3, 1965], No.37663/65. Headings G2J and G3R. The zoom mechanism 10 of a television camera is driven by motor 18 associated with tachometer generator 17 and amplifier 19, the zoom rate being controlled by potentiometer 29 which is set manually. A focus portion 11, which allows the lens to be adjusted independently of the zoom setting, is actuated by mechanism 12 which is controlled by hand wheel 13 of demand unit 14. A tachometer generator 31 is driven by the mechanism 12 to provide an electrical signal which is added to the zoom rate signal from potentiometer 29, thus compensating for the effect of focus adjustment upon the magnification. The signal from the generator 31 may be attenuated by a potentiometer coupled to the zoom mechanism. If the zoom mechanism is controlled by a positional servo, the positional demand signal is modified by a signal from the focusing system. The positional servo comprises demand and reset potentiometers, and the modifying signal is derived from a further potentiometer. Both rate and positional servo operation may be combined in one zoom lens arrangement, with a switch for selecting either of the two modes of operation, Fig. 6 (not shown). The tachometer generator 31 may have one of its terminals earthed, the other terminal feeding a signal in parallel with the zoom demand signal by way of a fixed resistor, or a rheostat which is driven by the zoom mechanism. The focus rate signal may be obtained by differentiating the output of a potentiometer driven by the mechanism 12. A hand-driven tachometer generator may be used as the demand unit for the focus servo, a modified signal from this generator being injected into the zoom rate control system. This modification can be effected by a fixed resistor, or a rheostat having its wiper driven from the zoom mechanism. In other arrangements for positional control of zoom, in which compensation is afforded by modifying the zoom error signal by a further signal obtained from the focus mechanism, the reset resistor of the zoom position servo is divided and the focus position signal is fed into the zoom reset path. Two rheostats may be placed in series with the reset potentiometer on the zoom system, both rheostats being driven from the focus mechanism. A potentiometer may be connected across the reset resistor of the zoom positional servo, the potentiometer being driven from the focus mechanism with its wiper connected to both of its end terminals through diodes and resistors.
Patent GB-1318358-A (GB)
Title: Apparatus for the transfer of textile yarns
IPC: D01D11/00
Filed: 1970-08-05
Abstract: 1318358 Pneumatic yarn feeding nozzles RHONE-POULENC-TEXTILE 5 Aug 1970 [7 Aug 1969] 37741/70 Heading D1F Apparatus for the transfer of textile yarns from a first treatment device to a second treatment device includes a fixed pneumatic nozzle having a guide conduit 11 extending towards the second treatment device, the nozzle including at least one yarn guide passage 20, a cylindrical guide surface e.g. pin 23, disposed adjacent to and in tangential relationship with the upstream end of the passage 20, and a slot having a first portion 15 parallel to the axis of passage 20 and communicating the passage with the exterior of the nozzle body and a second portion extending tranversely to the first portion and opening to the exterior of the nozzle body for allowing access of a suction gun during threading. In a preferred embodiment filaments from a spinneret are grouped to form two yarns which are first drawn and then led through the nozzle to be fed to an oiling or finishing device. Air is fed to the two L-shaped yarn passages 15 tangentially by passages 17 leading from a chamber 19 connected to air supply pipe 18. The yarns and air are conveyed through the nozzle in conduits 20 which communicate with the guide conduit 11. In this embodiment, the conduit 11 comprises two cylindrical tubes leading from the conduits 20 to a common divergent portion upstream of the second treatment device. The nozzle is preferably associated with two waste aspiration devices connected upstream of the inlet of the nozzle and at the outlet end of the conduit 11. A pneumatic gun may be positioned at 16 to aid the initial engagement of the yarns in the nozzle.
Patent GB-1398164-A (GB)
Title: Method of making a contact spring
IPC: H01R13/115
Filed: 1972-08-14
Abstract: 1398164 Making contact springs BACH & CO 14 Aug 1972 [12 Aug 1971] 37754/72 Heading B3A [Also in Division H2] In a method of making contact springs for plug connectors having mutually opposed contact spring legs 2, 3, the spring is shaped by a tool from a sheet metal blank by inserting a former 14 between the legs of the spring, the former co-operating with pressure operated jaws 15, 16, which shape the legs by pressure applied perpendicularly of a plane of symmetry of the contact spring. The blank is stamped from brass or bronze to have a uniform thickness (D), Fig. 3, not shown, but the legs are slightly tapered and have opposed parallel faces (4), Fig. 1 (not shown). The shank 1 is suitably sized to allow a wrapped wire connection to be made subsequent to inserting the spring in a plate or sheet of insulating material. The legs 2, 3 are cold formed by the jaws 15, 16 and the former 14 to form widened convexly curved contact faces 21, 22. These faces may be electroplated with a noble metal, e.g. gold or silver. The cold forming produces work-hardening of the metal in the vicinity of the contact faces and the taper in the legs ensures a uniform bending stress throughout their length.
Patent GB-377717-A (GB)
IPC: G03C7/14
Abstract: 377,717. Colour photography. KISLYN CORPORATION, 14, Wall Street, New York, U.S.A.-(Assignees of Soc. Francaise Cinechromatique (ProcÚdÚs R. Berthon); Paris.) Jan. 29, 1931, No. 2933. Convention date, Jan. 29, 1930. Drawings to Specification. [Class 98 (ii).] In the reproduction without moire effects of colour-record images on original linear lenticular films by contact printing on to lightsensitive lenticular film material, as described for example in Specification 310,320, [Class 97 (i), Optical systems &c.], an auxiliary lenticular film of the same kind, stripped of its gelatin emulsion or image layer, is placed in contact with the original film on the side facing the source of light, the lenticles of all three films being parallel to one another. As in the apparatus of Specification 310,320, an oscillating mirror is interposed between the source of light and the films. The auxiliary film may pass continuously through the printer with the original and copy films, taking the form of a long strip or endless band ; or it may be stationary in the printing gate. It is stated that the invention is particularly useful in the reproduction without moire effects of originals bearing damaged images. Specification 367,411 also is referred to.
Patent GB-1472448-A (GB)
Title: Apparatus for curing insulating material
IPC: B29C48/05
Filed: 1974-08-29
Abstract: 1472448 Curing insulating material FUJIKURA CABLE WORKS Ltd 29 Aug 1974 [30 Aug 1973 26 Nov 1973] 37807/74 Heading C3E Apparatus for continuously curing a curable polyolefin-insulated electric cable core comprises as illustrated in Fig. 1 a curing tube 1 having a plurality of units each having heating and cooling zones (2, 4), a sealing constriction 5 being provided to separate one unit from another, such units being arranged in horizontal alignment, the heating and cooling zones and the sealing constriction being filled with a high viscosity heat transfer medium 3, and each sealing constriction serving to substantially reduce the clearance between the outer surface of the electric cable core drawn therethrough and the inner wall surface of the curing tube whereby, when the heat transfer medium is super-cooled in the seal portion, the clearance is sealed and the electric cable core is supported. High viscosity is defined as having a viscosity of 5000-100,000 es. at room temperature, e.g. silicone oil. The heat transfer medium may be cooled to a temperature of -20 to -40C. The clearance between the outer surface of the insulated cable core 1 and the inner wall surface of the curing tube at the seal portion 5 in the specific embodiment is arranged to be of the order of several millimetres. This clearance will be sealed with the heat transfer medium when supercooled which medium also servies as a lubricant to allow the insulation-covered cable core to travel smoothly. The heat transfer medium may be forced to circulate in the heating and cooling zones in order to improve its efficiency in transferring heat to the insulated cable core.
Patent GB-344798-A (GB)
Title: Improvements in or relating to portable, self-supporting and collapsible bathing screens, tents, and like structures
IPC: E04H15/00
Filed: 1929-12-10
Abstract: 344,798. Tents. HERD, D. A., 24, Coronation Drive, Gt. Crosby, Lancashire. Dec. 10, 1929, Nos. 37895/29 and 25206/30. [Class 20 (i).] A self-supporting collapsable tent frame comprises end frame members which may be rigid or collapsable, and struts hinged at their centres and hinged to the end frames, the central hinges lying normally within the confines of the end members but being adapted when the structure is erected to move outwardly beyond the end hinges and lock themselves in extended position. Springs f are disposed across the hinges of the strut members b so that the struts are maintained in extended position and the frame is collapsed automatically as soon as the central hinges of the struts are pressed inwardly beyond the line of the hinges g on the end frames a. Elastic bands stretching between the hinges g on the end frames may be used to replace the springs and the tent fabric may be whole or may be slit to allow the struts to project outside it. The end frames may be made telescopic in width or length or formed in hinged parts, and the hinged struts may be duplicated and portions of them may be formed telescopic. The collapsed structure may be used as a holdall or as a picnic table.
Patent GB-1065984-A (GB)
Title: Improvements in or relating to the production of boron phosphate catalysts
IPC: B01J27/16
Filed: 1963-09-26
Abstract: Boron phosphate catalysts with a controlled acidity are prepared by mixing phosphoric and boric acids to form boron phosphate, drying the resultant mixture at 100-150 DEG  C., calcining at 550-800 DEG  C., contacting with a quantity of acid in solution which quantity has been calculated empirically to obtain the desired final catalyst acidity, and drying the final product at 400 DEG  C. or less.  The said acid in solution may be any of the phosphoric acids, benzenosulphonic acid, sulphuric acid, or arsenic acid, and the solvent may be water or ethyl ether.  Reference has been directed by the Comptroller to Specification 962,727.
Patent GB-1122791-A (GB)
Title: Improvements relating to packaging sleeves for cops
IPC: B65D30/00
Filed: 1965-09-06
Abstract: 1,122,791. Packaging yarn; conical plastics bags. J. P. BEMBERG A.G. 6 Sept., 1965 [12 Sept., 1964], No. 38012/65. Headings B8C and B8K. A yarn-laden cop is wrapped in an open ended thermoplastic sleeve, which is tapered to fit the shape of the cop. The sleeve may be made from seamless, longitudinally folded or pleated tubing, which is tapered by making converging hotwire welds, the resulting tip being cut off to leave an opening of the required size. The sleeve may be made from polyethylene film.
Patent GB-1003767-A (GB)
Title: Improvements in or relating to multi-polar contact bars
IPC: H01R13/629
Filed: 1961-10-24
Abstract: 1,003,767. Two-part couplings. PLESSEY CO. Ltd. Oct. 24, 1961 [Oct. 24, 1960], No. 38038/61. Heading H2E. A multi-contact socket connector comprises an insulating body 1, having sleeve contacts 3 mounted in parallel, through bores in the body so that a mating pin may extend completely through the body. The sleeves have a non- circular internal cross-section for engagement with pins of complementary cross-section. Insulating fins 5 separate adjacent socket contacts. The pins may be mounted in a similar insulating block. One pair of pins is longer than the others so that this pair makes contact with the sockets before the others. Each sleeve contact and each pin has a screw-type wire terminal 13. An insulating cover may be provided, and a latch may lock the body parts together.
Patent GB-843588-A (GB)
Title: Synthetic rubber compositions
IPC: C08K5/17
Filed: 1958-11-26
Abstract: Chlorosulphonated polyethylene is vulcanized using hexamethylenetetramine as curing agent optionally in the presence of a solvent such as xylol.  Curing is effected on exposure to air, with/without heating, and an elastomeric product may be obtained. The invention comprises curable coating compositions such as those containing pigments, e.g. titanium dioxide and daylight fluorescent pigments-in particular such as those disclosed in Specifications 672,763 and 769,344.  The products find application as paints (such as white paints for rubber tyres), as films and sheets, and as tarpaulines and canopies for life-rafts.  In the examples nylon fabric is coated twice, first with a curable composition according to the invention and containing TiO2 and secondly with a similar composition containing a fluorescent pigment.  A white paint is also exemplified and which also contains a coconut oil alkyd resin.
Patent GB-340745-A (GB)
Title: Improvements in two stroke cycle internal combustion engines
IPC: F02B25/00
Filed: 1929-12-12
Abstract: 340,745. Two-stroke engines ; cylinders. MILLER, S., 16, St. Winifreds Road, Teddington, Middlesex. Dec. 12, 1929, No. 38098. [Class 7 (ii).] The piston baffle A is in the form of an arcuate tube which is as long as possible and at the outer dead centre is connected by a transfer passage D and a port C with the inside of the piston where the charge is compressed ; the piston reciprocates in a fixed pump cylinder, packing F being provided. Specification 10998/08, [Class 7, Air and gas engines], is referred to.
Patent GB-920545-A (GB)
Title: Ejection of airmen from aircraft
IPC: B64D25/10
Filed: 1960-11-07
Abstract: 920,545. Discharging from heights; rocket devices. J. MARTIN. Nov. 6, 1961 [Nov. 7, 1960], No. 38194/60. Class 9 (2). [Also in Group XXXIII] A rocket motor pack for accelerating an aircraft ejection seat after its ejection by a conventional ejection seat gun comprises a tubular spine 24 closed at its ends by which it is supported beneath the seat pan, and having ports 25, Fig. 6, with bosses 26 into which may be screwed canisters 27 containing propellant charges 27a, the lengths of the canisters and charges being selected as required. Each charge extends into the spine at 27b, so that it may be ignited by hot gases from an explosive charge in a tube 31 detonated by a firing pin 36 which is cocked and released during the ejection sequence by a sear 42. The propellant gases discharge through nozzles 30 (one shown) on the spine, each nozzle being sealed by a frangible diaphragm which is ruptured only by the pressure built up when at least one propellant charge is ignited, to facilitate ignition by the hot cartridge gases at low ambient pressure. A single exhaust nozzle may be used. According to the Provisional Specification, the canisters may have removable caps at their ends for withdrawal and insertion of the propellant charges, and the charges may be ignited electrically. Specifications 583,257, 640,520, 652,131 and 711,234 are referred to.
Patent GB-358811-A (GB)
Title: Improvements in or relating to moulds for casting printers' furniture
IPC: B41B5/12
Filed: 1930-12-19
Abstract: 358,811. Moulds. PHILLIPS, J. E., The Ridge,Hallow Road, and THACKERAY, A. G., 1, Watery Lane, both in Worcester. Dec. 19, 1930, No. 38256. Addition to 336,187, [Class 83 (i), Casting &c. metals]. [Class 83 (i).] Clamping and guiding moulds.-A mould as in the parent Specification is arranged to be capable of opening by a lifting instead of only a sliding movement of the upper part c. The base-plate built up of sections the intermediate members b<11>, b<14>, Fig. 3, of which correspond in width to that of the grooves required. The closure b<5>, Fig. 4, for the lower ends of the grooves is pivoted at b<6> to a side section b<4> of the base so that it can be swung aside for cleaning. The matrices c<3> are removably secured to the cover-plate c by spring bolts c<4>, Fig. 4. The cover-plate is separated from the castings by first swinging it into the position shown in broken lines in Fig. 1. The block e for stopping-ofe a groove may engage two of the projections of a matrix c<3> as shown. If it is desired to cast H -section bars matrix-bars, each with a continuous projection having less than half the depth of the projection shown, are used with sections b<11> .. b<14> having similar projections. In this case steel stopping-off blocks of H -section are used. The hopper is formed in a member d<1> which is removable, so as to sever the runner, by striking with a hammer.
Patent GB-953018-A (GB)
Title: Improvements relating to unspillable containers
IPC: A47G19/22
Filed: 1961-10-26
Abstract: 953,018. Unspillable cups; saucers. G. ROWAN. Oct. 26, 1962 [Oct. 26, 1961], No. 38326/61. Heading A4A. A cup has a projecting flange F spaced a short distance above the rounded base B to make contact with a saucer S or other supporting surface to limit tilting of the cup and prevent spillage. In a modification shown in Fig. 2, the cup is of flattened globular shape, the mouth M being offset to one side of the plane of the handle H and tilting to cause over-spill being prevented by a stop P extending vertically from the flange F to the flat base of the cup. In further modifications the flange is partial, discontinuous or perforated and of concave or convex cross-section. The invention is stated to be applicable to bowls and other relatively shallow vessels.
Patent GB-1004210-A (GB)
Title: Improvements in screw-conveyors
IPC: B65G33/00
Filed: 1963-09-30
Abstract: 1,004,210. Screw conveyers. ESTABLISSEMENTS PAGET & CIE. Sept. 30, 1963 [Oct. 2, 1962], No. 38336/63. Heading B8A. Material from a heap P is discharged by a screw conveyer 4 working in a casing 1, and the casing is provided with a sleeve extension 6 which is carried adjustably at 8 and is provided with a foot 5. The sleeve extension 6 has its edge formed in a helix 6b such that a person's hand cannot be trapped by the screw.