baber/WOPTO huggingface dataset:
Patent GB-348682-A (GB)
Title: The manufacture of condensation products
IPC: C07D277/78
Filed: 1930-02-12
Abstract: Condensation products of the probable formula <FORM:0348682/IV/1> in which Aryl represents a benzene or naphthalene nucleus, and all the aromatic nuclei may be substituted by halogen atoms, alkyl-, nitro- or alkoxy-groups, are manufactured by reacting on a mercaptobenzothiazole (which may be substituted as above) with an aryl sulphur chloride or bromide (the term "aryl" being defined as above), in the presence of an inert solvent such as tetrachloromethane, benzene, toluene, or ligroin.  The products are vulcanization accelerators for natural or synthetic rubber. The aryl sulphur chlorides or bromides are obtainable by treating diaryl-disulphides with chlorine or bromine in the presence of organic solvents.  Examples describe the preparation of: (1) benzothiazyl-p-nitrophenyldisulphide from mercaptobenzothiazole and p-nitrophenylsulphurchloride; (2) 4-methoxy-6-chlorobenzothiazyl-p-nitrophenyldisulphide from 4-methoxy-6-chloromercaptobenzothiazole and p-nitrophenylsulphurchloride; (3) 4 : 6-dichlorobenzothiazyl-p-nitrophenyldisulphide from 4 : 6-dichloromercaptobenzothiazole and p-nitrophenylsulphurchloride; (4) 2-benzolthiazyl-o-nitrophenyldisulphide from mercaptobenzothiazole and o-nitrophenylsulphurbromide. Additional aryl sulphur halides specified are: phenylsulphurchloride; 4-methylphenyl-1-sulphurchloride; 2-nitrophenyl-1-sulphurchloride; 1-chloronaphthyl-2-sulphurchloride.  Specification 331,885, [Class 2 (iii), Dyes &c.], is referred to.ALSO:Vulcanization accelerators for natural or synthetic rubber comprise compounds of the probable formula <FORM:0348682/V/1> in which Aryl denotes a benzene or naphthalene nucleus and all the aromatic nuclei may be substituted by halogen atoms, alkyl-, nitro- or alkoxy-groups, manufactured by condensing a mercaptobenzothiazole (which may be substituted as above) with an aryl sulphur chloride or bromide (the term "aryl" being defined as above) in the presence of an inert solvent. Specific compounds described are: (1) benzothiazyl-p-nitrophenyldisulphide; (2) 4-methoxy-6-chlorobenzothiazyl-p-nitrophenyldisulphide; (3) 4:6-dichlorobenzothiazyl-p-nitrophenyldisulphide; (4) 2-benzothiazyl-o-nitrophenyldisulphide.  Specification 331,885, [Class 70, Indiarubber &c.], is referred to.
Patent GB-1499235-A (GB)
Title: Coating of paper using a composition comprising a latex of a rubbery film-forming polymer and ungelatinized starch granules
IPC: D21H19/58
Filed: 1976-02-09
Abstract: A mass which contains a latex of a flexible polymer and ungelatinised starch grains is spread over the surface of the paper. The average diameter of the starch grains is smaller than the average distance between the surface fibres of the paper. The excess of coating mass is removed and the paper is then dried. The flexible polymers used can be rubbery homopolymers and copolymers. The latices can also contain minor quantities of latices of resinous polymers. The paper coated in this way has improved resistance to dirt, moisture and damage by folding. When printed in the conventional manner, better detail delineation and truer reproduction of hair lines are obtained. The appearance and characteristic rustling of the paper do not change as a result of the coating. It can be used as banknotes paper or securities paper.
Patent GB-1479130-A (GB)
Title: Housing for castors
IPC: B60B33/00
Filed: 1976-02-09
Abstract: 1479130 Castors KEVI AS 9 Feb 1976 [19 Feb 1975] 04951/75 Heading A4U A housing for castors with twin rollers comprises a central partition 6 having an opening 7 for a spindle on which the rollers are to be rotatably mounted on opposite sides of the partition which has resilient hooks 13 extending laterally from its sides for snap-engaging circumferential grooves in the rollers to retain them on the spindle. The housing may be cast from nylon, and it has a part 9 having a bore (10) for a spigot, the bore having a hemispherical bottom (11) and a shoulder (12) for engaging a groove in the spigot, Fig. 3 (not shown). Holes 16 in the partition facilitate casting.
Patent GB-1111368-A (GB)
Title: Improvements in or relating to devices for ensuring the correct direction of rotation of a small electric synchronous motor
IPC: H02K7/118
Filed: 1967-02-02
Abstract: 1,111,368. Electric motor driving arrangements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 2 Feb., 1967 [5 Feb., 1966], No. 5026/67. Heading H2A. A device for ensuring correct direction of rotation of a small synchronous motor, including a ratchet wheel driven by the motor and a pawl which coacts with the ratchet wheel and which is pivotable about a shaft to a limited extent, the pawl coacting with the ratchet wheel in the undesired direction of rotation and being clear of the ratchet wheel in the desired direction of rotation, is characterized in that the pawl is resiliently connected to an arm so that the pawl is resilient in a direction approximately concentric with the ratchet wheel periphery, the shaft about which the pawl arm is pivotable to a limited extent forming part of a rotary disc driven by the motor and the pawl arm being connected to the shaft by a friction coupling. As shown, it is assumed that the motor has started in the wrong (counter-clockwise) direction. Pawl 13, 9, thereupon engages a tooth of ratchet wheel 4 mounted on the shaft of rotor 1. The pawl is connected by resilient rods 11, 12 to a pawl arm 8 whose hub 7 is frictionally secured to gear-wheel 6 meshing with gear-wheel 5 on the rotor shaft. The resilient mounting 11, 12 ensures that the pawl 13, 9 first tends to be urged circumferentially counter-clockwise and then imparts a clockwise impulse to ratchet wheel 4. Thereupon, the motor starts in the correct direction, and gear-wheel 6, now rotating counter-clockwise, carries pawl arm 8 around with it until arm 8 is stopped at 14, clear of ratchet wheel 4. Preferably the rotor 1 is made of sintered oxidic ferromagnetic material. Stator poles 2 are provided.
Patent GB-197741-A (GB)
Title: An improved pneumatic tyre tube and method of making same
Filed: 1922-02-21
Abstract: 197,741. Thurlow, E. W., and Hughes, W. K. Feb. 21, 1922. Air tubes. - A self-sealing tube for pneumatic tyres comprises a layer of self-sealing material 3 such as raw or mastic rubber enclosed between an outer casing 6 of vulcanized rubber and an inner layer 4 of unvulcanized or partly vulcanized rubber. A strip or strips of material 7 such as canvas, cord-cloth, or wire mesh cut on the cross is wound round the. inner part in an inflated condition. An outer layer 8 of rubber is added and the whole placed in a mould and vulcanized in the usual manner.
Patent GB-747388-A (GB)
Title: Improvements in or relating to method and device for detecting flaws in metallic objects
Inventor: HARMON WILLIAM CLAIR
IPC: G01N22/02
Filed: 1954-02-20
Abstract: 747,388. Electric tests. REPUBLIC STEEL CORPORATION. Feb. 20, 1954, No. 5065/54. Class 37. Apparatus for detecting flaws in steel billets comprises a coil 14 in the tank circuit of an oscillator, which is moved over the surface of the steel object, the oscillator containing a feed-back arrangement which neutralizes slow variations in output level and only passes on sudden changes as produced by flaws, the frequency of oscillation being adjusted to remain unchanged as coil 14 approaches the test object. As shown, coil 14 and parallel capacitors 25, 26 form the tuning circuit of valve V1 fed with positive feed-back by valve V2. The output from valve V1 is amplified by cathode-follower V3, and a triode valve V4 whose anode signal current is rectified by a diode V5 to supply the bias fcr valve V2 through R.C. components 37, 38 which neutralize slow changes by their integrating action, but allow rapid changes to produce corresponding changes in the output of valve V3 which are fed to an indicator 15 as described in Specification 727,217. The frequency of oscillation is adjusted by variable capacitor 25 to give no change in output level as coil 14 approaches the test object.
Patent GB-470710-A (GB)
Title: Improvements in hand grenades
IPC: F42B12/20
Filed: 1936-02-19
Abstract: The following materials are mentioned for use in gas-producing hand grenades; chloroacetophenone; diphenylamine - chloroarsine; a mixture of ammonium chloride, chalk, petroleum jelly, and gun-powder; and paraformaldehyde.
Patent GB-110105-A (GB)
Title: Improvements in or relating to Dividers, Wing Compasses, Callipers and the like.
Inventor: COLLIER ARTHUR
IPC: B43L9/16
Filed: 1917-04-11
Abstract: 110,105. Collier, A.' April 11, 1917. Compasses and dividers.-The usual curved arm or sector d is of approximately circular crosssection and passes through a slightly larger hole in the leg b. It is clamped in its adjusted position by an eye-bolt g, Fig. 4, preferably having a heart-shaped opening i, and carrying a nut j, the arm being gripped at three places.
Patent GB-606254-A (GB)
Title: Apparatus for the automatic adjustment of the angle of elevation of guns
IPC: G05D3/12
Filed: 1940-03-19
Abstract: 606,254. Ordnance. VICKERS-ARMSTRONGS, Ltd., ROBERTS, F. H., and SPAINK, J. H. ABBINK-. March 19, 1940, No. 5128. [Class 92 (i)] [Also in Group XXXVIII] Relates to gun-elevating mechanism, including a power transmission of the follow-up or repeater type, and wherein relative angular displacement between two units, such as magslip units, results in the movement of a follow-up motor which in turn results in the elevation of the gun and also the cancellation of the displacement. According to the invention means are provided for increasing or decreasing the relative angular displacement beyond that initially set up by the predictor or other controlling mechanism. By this means an increased or decreased elevational movement of the gun must take place to cancel the relative angular displacement of the two units, thus compensating for factors such as varying muzzle velocities. In the construction shown in Fig. 2, relative displacements between the rotors of a transmitter 1 and a receiver 2 causes the rotation of a follow-up motor 3, which motor serves not only to elevate the gun 20 but by shafts 11, 10, and gearing 12 to reposition the rotor of the receiver 2. Such movement of the rotor is increased or decreased by bringing the desired one of a number of cams 5 into contact with a follower 6, the latter being geared as shown at 7, 8 to the rotor. In a modification a solid cam is employed and the motions of shaft 10 and quadrant 7 are combined through differential gearing. In another modification, Fig. 4, a third unit 16 is interposed as shown, its rotor 17 being connected with a follow-up motor 3 through the medium of cam mechanism. The arrangement is such that rotation of the rotor 17 effects the position of a rotor 1a associated with the amplifier 4, the position of the rotor depending on the position of the cam mechanism. Specifications 606,876, 606,877, [both in Group XXXVITI], and 625,244, [Group XXIX], are referred to.
Patent GB-1022700-A (GB)
Title: A fastener for assembly in an apertured support
IPC: F16B5/12
Filed: 1964-02-06
Abstract: 1,022,700. Stud fastenings. UNITED-CARR Inc. Feb 6, 1964 [Feb. 28, 1963], No. 5140/64. Heading E2B. [Also in Division B3] A fastener for placing in an aperture in a support 2, for attaching a member thereto, comprises a base 3 with an aperture 7, resilient legs 5, 6 extending from the edge of the base aperture for snapping engagement in the support aperture, one of the legs 5 being formed when the other leg is formed, at least one of the legs having a portion 9 for engagement with the support when the fastener is assembled in an aperture therein. The outer edges of the base 3 have flanges 4 which engage the member to be fastened e.g. a moulding 1. The leg 5 has a support engaging portion 8 and the leg 6 is fork-shaped with spurs 9 which are spaced away from the base to snap under the under surface of support. The fastener may be produced by shearing a metal blank with the leg outlines (Fig. 6, not shown) and using forming tools to curve the legs and bend the spurs 9 and also to bend the legs at right angles the base.
Patent GB-677505-A (GB)
Title: Thermostable polymeric vinylidene chloride composition
Inventor: BRITTON EDGAR CLAY
IPC: C08K5/17
Filed: 1951-03-02
Abstract: Vinylidene chloride polymers, such as copolymers of vinylidene chloride with vinyl chloride, are heat-stabilized by the addition of 0.5 to 5 per cent of ethylene diamine N,N1-tetra-acetic acid, or a salt thereof, wherein at least two of the hydrogen ions of the acid are replaced by two identical alkali metal ions, and the other two hydrogen ions are replaced by an alkaline earth metal ion or alkali metal ions.  Salts specified are the tetrasodium, tetrapotassium, tetralithium, dilithium disodium, dilithium dipotassium, dipotassium disodium, barium disodium, calcium dilithium, barium dilithium, calcium dipotassium and barium dipotassium salts of ethylene diamine N,N1-tetra-acetic acid.  Also present in the composition may be dibutyl sebacate.
Patent GB-1064943-A (GB)
Title: Method and apparatus for measuring the bulk density of material
Inventor: HIRST ARTHUR ALGERNON
IPC: G01N9/02
Filed: 1963-02-08
Abstract: 1,064,943. Measuring density electrically. COAL INDUSTRY (PATENTS) Ltd. Dec.13, 1963 [Nov.16, 1962(2); Feb.8, 1963], Nos.43436/62, 43438/62 and 5213/63. Heading G1N. [Also in Division G3] The density of loose solid material such as coal is measured by maintaining constant the volume thereof fed on to unit length of a conveyer 22, and measuring the weight per unit length. The output of an electrical load cell 29, measuring the weight, may be corrected for moisture content of the coal by a signal from a moisture gauge 27. The feed of material on to the conveyer is maintained constant by deriving an error signal e from a measured value of volume (7, Figs. 2, 4, not shown) and a preset value X, and using the signal e to control either the conveyer speed (15, Fig.4  not shown) or a vibrating feeder (5, Fig. 2 not shown). The level of the coal in the hopper (1, Fig. 3 not shown) may be measured (at 12) and kept constant by controlling (at 13) the conveyer speed, to maintain a constant volume on the conveyer irrespective of irregularities in the supply of material to the hopper. The volume per unit length may alternatively be determined by selection of the size and shape of aperture plates 26, Fig. 5.
Patent GB-743666-A (GB)
Title: Manufacture of complex metal salts of carboxylic acid hydrazides
IPC: C07D213/86
Filed: 1953-02-25
Abstract: Copper, gold, and iron complex salts of heterocyclic carboxylic acid hydrazides or of salts of said hydrazides are obtained by bringing together a salt of copper, gold or iron and a heterocyclic carboxylic acid hydrazide or a salt thereof in a liquid medium, e.g. water or alcohol, in which the reactants are soluble.  If inorganic acid salts of the metals are used it is preferable to have sodium acetate present as buffer salt.  The invention also comprises as new compounds the complex copper, gold and iron salts of heterocyclic carboxylic acid hydrazides, e.g. of pyridine 4-carboxylic acid hydrazide.  In examples (1) a solution of copper sulphate and sodium acetate in water is added to a solution of pyridine-4-carboxylic acid hydrazide in water, the copper complex salt being precipitated; the same salt is obtained by mixing aqueous solutions of the hydrazide and copper sulphate; (2) a complex ferrous salt is obtained by adding an aqueous solution of ferrous sulphate to pyridine-4-carboxylic acid hydrazide.  The corresponding ferric or auric complex salts are obtained by using ferric sulphate or auric chloride instead of ferrous sulphate.  Other salts specified are copper chloride and copper acetate.  The products are stated to have valuable therapeutic properties and may be used in the treatment of tuberculosis.
Patent GB-899124-A (GB)
Title: Improvements in and relating to ultrasonic testing
Inventor: GORDON GEORGE ANDREW DOUGLAS
IPC: G01N29/30
Filed: 1959-02-11
Abstract: 899,124. Automatic alignment control systems. KELVIN & HUGHES Ltd. Feb. 11, 1959, No. 5280/58. Class 38 (4). [Also in Group XL (c)] An apparatus comprises transducer means for injecting ultrasonic pulses into a body and for receiving the pulses after traversing the body, there being means for deriving a signal indicative of the time difference between the arrival of the received pulses and other pulses which either have traversed a path in the body different from that traversed by the firstmentioned pulses or are reference pulses, and means for using the signal to control the position of the transducer means relative to the body such that the signal is maintained at a minimum value. Pulses from unit 26 feed a transmitter 29 which causes transmitting/receiving probe 10 to inject pulses into the test body. Received pulses are passed via unit 33 to a comparison circuit 48, the pulses being maintained constant in amplitude by A.G.C. 38. If the A.G.C. cannot maintain constant amplitude an alarm system 40 is actuated. A gating circuit 35 allows unit 33 to be operative only during predetermined periods after each transmitted pulse. Pulses from a generator 47 are also fed to the circuit 48, which gives a signal indicative of the time difference between the two sets of pulses fed to it. The signal is fed to a meter 49 and, via an amplifier 50, to a servo-mechanism 51 which moves the probe in such a manner that the signal is maintained at a minimum. Generator 47 may be replaced by a second probe which transmits and receives pulses along a path different from that associated with probe 10, and the probes may operate with transverse, surface or Lamb waves. The invention may be used for automatic control of a manufacturing process. As applied to a welding apparatus, the transducer means and the welding electrode are mounted on a movable carriage. The transducer means are mounted ahead of, and are shielded from, the electrode. A coupling liquid is provided between the transducer probes and the material to be welded, the probes being capable of limited vertical movement by being hinged to the body of the carriage.
Patent GB-989846-A (GB)
Title: Improved method of insulating an electric conductor
Inventor: ALLMENDINGER KARL
IPC: H01B13/06
Filed: 1962-02-12
Abstract: 989,846. Casting resin insulation. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. Feb. 12, 1962, No. 5289/62. Heading B5A. In an improved method of insulating an electric conductor by casting a liquid resin about the conductor, the conductor is heated by an electric current which raises the temperature of the resin next to the conductor to a higher degree than the temperature of the outer surface of the resin, and thus prevents any voids being formed in the insulation.
Patent GB-807257-A (GB)
Title: Sulphosuccinic acid mono amides
IPC: C07C309/18
Filed: 1957-02-15
Abstract: The invention comprises sulpho-succinic mono-amides of the general formula <FORM:0807257/IV (b)/1> wherein R1 is a halogenoaryl radical, R2 is hydrogen or an alkyl radical or an alkali metal and one X represents an hydrogen atom while the other represents SO3H or SO3-alkali-metal, and a process for the production of sulphosuccinic mono-amides by treating a maleic acid mono-amide of the general formula <FORM:0807257/IV (b)/2> with a salt of sulphurous acid.  The compounds are used as therapeutic agents against paratyphus. Examples describe the preparation of disodium sulpho-succinic acid-o- and p-chloranilide, sodium sulpho-succinic acid-m-chloranilide mono-methyl ester, disodium sulphosuccinic acid - 2 : 4 - dichloro - anilide and 2 : 4 : 5 - trichloro - anilide, disodium sulpho - succinic acid 4 - chloro - trifluoromethyl - anilide and 4 - chloro - 2 - methoxy - anilide and disodium sulpho-succinic acid 2 : 4 - dibromo - 1-naphthylamide and 2 : 4-dichloro-1-naphthylamide, all made by the action of sodium pyrosulphite or sodium metabisulphite on the corresponding maleic amide.  Maleic acid amides and esters thereof used as starting materials are prepared by reacting maleic anhydride with the appropriate amine and, if desired, esterifying. Specification 735,302 is referred to.
Patent GB-470790-A (GB)
Title: Improvements in or relating to collapsable tripod stands
IPC: F16M11/16
Filed: 1936-02-21
Abstract: 470,790. Tripod stands. BILLING, N. P. Feb. 21, 1936, No. 5329. [Class 52 (v)] A collapsable tripod comprises legs 23 hinged to a head 24. a retainer 10 adapted to be passed over the free ends of the legs when closed to guard them and protect their extremities, means such as a screw-thread for securing the retainer in position and a clip 21 carried by the retainer whereby the collapsed tripod can be clipped on to the edge of a pocket. The retainer is threaded at 11 for connection to an extension 12 carrying a ball joint 15 with a screw 14 for the camera, the ball socket 16 having a slot 18 to enable the screw to be turned through 90‹. A slidable member 17 having a concave end engages the ball 15 and is held within the retainer by an eccentric pin 19 carrying the spring clip 21 so that turning the clip through 90‹ looks the ball in its socket. The other end of the retainer 10 is threaded at 25 for engaging the threaded head 24 either with the folded legs inside the retainer, Fig. 1, or with the legs outside in the position of use, Fig. 5. Each leg 23 is pivoted between a pair of flanges 32 on the head and has a camshaped extension 31 adapted to co-operate with a central pin 36 secured to a cover 38 capable of a slight longitudinal movement on the head 24. When the retainer 10 is screwed on to the head 24 shoulders 39 engage the cover 38 and force the pin 40 into contact with the extensions 31, locking the legs in the open position. Each leg comprises a segment of a cylinder provided on its inner face with a groove for the reception of a pivoted lower portion 26, cut-away portions 28, 29 being provided to facilitate opening. The parts 23 of the legs have U-shaped extensions 30 in line with the grooves, with which the extensions 26 contact in their extended positions. The legs may be tubular and may have non-slip pads of rubber. Instead of being of long tubular form the retainer may comprise a short cap. mounted directly on the head 24 and adapted to engage a threaded collar formed on the extremities of the legs when in the collapsed position.
Patent GB-224438-A (GB)
Title: Improvements in the manufacture and production of alkali cyanide
IPC: C01C3/10
Filed: 1924-03-01
Abstract: Gases containing hydrocyanic acid and carbon dioxide with or without ammonia such as are produced by the reaction of carbon monoxide on ammonia in presence of a catalyst, are passed through a very concentrated solution of caustic soda.  Sodium cyanide forms and sodium carbonate separates.  Ammonia is then passed through the reaction mixture or into the solution from which the sodium carbonate has been separated.  The rest of the sodium carbonate is thus precipitated, but this operation is unnecessary if there is sufficient ammonia present in the gas.  The sodium carbonate is separated and washed with ammonia solution and the ammonia is distilled off from the sodium cyanide solution which is then evaporated to obtain the cyanide.  The evaporation may be effected in vacuo at 50 DEG  C.