baber/WOPTO huggingface dataset:
Patent GB-350161-A (GB)
Title: Improvements in or relating to the vulcanisation of rubber
IPC: C08K5/00
Filed: 1930-04-29
Abstract: 2 : 4-Dinitro-1-naphthyl-arylenethiazolyl sulphides are manufactured by the action of a mercaptoarylenethiazole on 1-chloro-2 : 4-dinitronaphthalene in the presence of alkali.  In an example, 2 : 4-dinitro-1-naphthyl-2-benzothiazyl sulphide is prepared by the action of mercaptobenzothiazole on 1-chloro-2 : 4-dinitronaphthalene in the presence of caustic soda.ALSO:The vulcanization of rubber is accelerated by means of a mixture of a 2:4-dinitro-1-naphthyl-arylenethiazolyl sulphide (obtainable by the interaction of a mercaptoazylenethiazole with 1-chloro-2:4-dinitronaphthalene in the presence of alkali) and a diarylguanidine, e.g. diphenylguanidine, such mixtures possessing the property of delayed action.  In an example 2:4-dinitro-1-naphthyl-2-benzothiazolyl sulphide (obtained by the action of mercaptobenzothiazole and 1-chloro-2:4-dinitronaphthalene in the presence of caustic soda) is mixed with diphenylguanidine and the mixture incorporated in a rubber mix, which is practically unvulcanized by treatment at 110 DEG  C. but is vulcanized at 141 DEG C.  The Provisional Specification describes also the vulcanization of rubber, using 2:4-dinitro-1-naphthyl-2-benzothiazolyl sulphide alone as accelerator.
Patent GB-514330-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P23/00
Filed: 1938-05-03
Abstract: 514,330. Controlling reversals of electric motors; actuation of switches. IGRANIC ELECTRIC CO., Ltd. May 3, 1938, No. 13153. Convention date, May 3, 1937. [Classes 38 (iii) and 38 (v)] Relates to a motor controller for effecting repeated reversals of an electric motor which is driven in one direction or the other for a predetermined number of revolutions. The motor M drives a washer cylinder 2 the shaft 9 of which is coupled by a shaft 12 to a gear wheel 14 gearing with a wheel 45 mounted on a bearing shaft 33. The wheel engages frictionally a wheel 23 rotatably mounted on the shaft 12 and gearing with a wheel 46 also mounted on the shaft 33. The wheels 45, 46, respectively, carry rings 47, 48, each having a peripheral notch engaged at certain relative positions of the wheels by respective spring pressed plungers 22, 30 carried respectively in the wheels 14, 23. The wheel 45 has a number of teeth less by one than the number of teeth on the wheel 14. Thus for each revolution of the shaft 9, the wheel 14 gains or loses on the wheel 45 by one tooth and after a predetermined number of revolutions of the shaft the plunger 22, or 30, engages its respective notch and moves into the path or a pivoted member 44 to rock this member one way or the other. This member engages an arm 53 to move it over the dead centre of a spring system 80 and thereby operates a switch arm 57. The first and final part of the movement of the switch arm is rapid but a dashpot 82 effects a timed intermediate movement of the arm. The switch mechanism effects reversal of the motor. Reference has been directed by the Comptroller to Specification 499,421.
Patent GB-561586-A (GB)
Title: Improvements relating to the flame treatment of metals
IPC: B23K7/10
Filed: 1942-09-21
Abstract: 561,586. Blowpipe burners. KERSHAW, J., KERSHAW, J., and KERSHAW, L. W. Sept. 21,. 1942, No. 13269. [Class 75 (i)] [Also in Groups II and XXII] In a method of and apparatus for flamecutting metal parts such as the chain sprockets of military tanks, the cutting flame operates within a closely surrounding stream of cold water so that the cut surface is immediately cooled and hardened. A bed 1 carries a rotatable table 3 receiving the sprocket blank 4 and a pillar 5 carries an arm 6 fitted with an adjustable nozzle holder 7 supplied with gas by pipes. 8, 9 through controls 10, 11. The nozzle, Fig. 4, has a central cutting portion 12 of usual form enclosed by a water chamber comprising parts 14 ... 14a supplied by a pipe 16, the part 14a having a ring of water jets 15 surrounding the flame. In some cases an annular water outlet may be provided. Additiona water jets 17, 18 are directed on to the worl from lines 19, 20 suppliec from a line which is als( connected to the pipe 16 The water is supplied fron a pump driven by a motor controlled by a mercury switch 25 and a solenoic 26 in the circuit of a switcl 27 on the oxygen contro so that the water supply is turned on and off with the cutting oxygen. The switch 27 may also control the traversing motor of the arm 6 so that traverse does not begin until cutting oxygen is turned on.
Patent GB-1186971-A (GB)
Title: Improvements in or relating to Integrating Temperature Difference Indicators.
Inventor: JOHNSTON JAMES STEWART
IPC: G01K5/62
Filed: 1968-03-19
Abstract: 1,186,971. Indicating integrated values of temperature. ROSEMOUNT ENG. CO. Ltd. Feb.4, 1969 [March 19, 1968], No. 13273/68. Heading G1D. Apparatus for indicating how an ambient temperature has differed from a pre-selected temperature as an integral of temperature difference with respect to time comprises a metal block 10 exposed to the ambient temperature, a temperature sensor in the form of a bi-metallic switch 12 which is located in a hole 11 in the block 10 and which closes below the pre-selected temperature, a heater 14 disposed in a further hole 13 in the block 10 and controlled by the switch 12, so that the block is maintained at the pre-selected temperature and an indicator 16, preferably in the fan of a synchronous motor connected to a cyclometer type indicator, for indicating the energy consumed by the heater, this being directly proportional to the difference in temperature between the ambient temperature and the pre-selected temperature, integrated with respect to time. The apparatus is used in the determination of the amount of fuel likely to have been used by a heating installation over a period of time assuming that as tempertures fall, more fuel will be used. However, since there will generally be a temperature at which a maximum rate of fuel consumption is reached and below which no extra fuel is used, the heater 14 may have a limited heat output so that it can only produce a limited rise in temperature of the block 10. In place of the switch 12, a suitably connected resistance thermistor may be used, if desired. Also, since there may be times when the heating installation is not in use, a tuning device to switch off the indicator during these times may be used.
Patent GB-166013-A (GB)
Title: Improvements in or relating to the treatment of tea
IPC: A23F3/00
Filed: 1920-05-14
Abstract: 166,013. Bateman, C. S., Chaplin, A. W. C., and Parkhouse, C. W. May 14, 1920. Tea, cutting.-In a machine for cutting tea of the type comprising cutting-knives and honeycombed rollers, the knives are so adjusted that the stalk is separated from the leaf in the process of cutting, means being provided to deliver the stalk and leaf to separate receptacles. For this purpose the knives C, mounted in the usual way by means of bolts and nuts on the rocking bars c<3> which are automatically turned to allow the passage of nails &c., are made blunter than usual and so adjusted as to allow the stalks, which project from the cells of the rollers A, to pass. Below the rollers are arranged baffle-plates E, vertically and horizontally adjustable, which deliver the stalks over sloping plates e<5> to suitable receptacles, or, as shown, to a second set of cutters, while the leaves pass through a central opening to a receptacle G. Indicators show the position of the plates E. The adjustment of the knives C can be effected by bolts C', Fig. 7, bear. ing on springs C<3> and projections on the bars c<3>, which are held against them by springs C<4>. Inscriptions on the heads of the bolts show the fineness to which the tea is being cut.
Patent GB-133861-A (GB)
IPC: A01L7/08
Abstract: 133,861. Tooth, J. N. Jan. 13, 1919. Making by special methods.- Relates to a method of manufacturing studs of the kind shown in the Figure. The stud is made from the solid, one end part B being turned circular and threaded. The other part is milled or otherwise machined on two opposite sides to form the central wedge-shaped web A<2>. The bars used for making the studs may be of square, round, or elliptical section.
Patent GB-932577-A (GB)
Title: Upholstered article
Inventor: HARRISON OSCAR HAMELL
IPC: A47C31/02
Filed: 1961-04-13
Abstract: 932,577. Attaching upholstery. ROLLSROYCE Ltd. April 6, 1962 [April 13, 1961], No. 13408/61. Class 52 (4). A vehicle seat 10 has a frame 13 to which are secured channel devices 14 into which are received the edges of leather upholstery sheets 31, 32, the sheet 31 having stitched thereto a reinforcing strip 36 of celluloid, fibre or cord and the sheet 32 having stitched thereto a leather piping strip 33. A sheet 30 of hessian disposed inwardly of sheets 31, 32 has a piped edge portion 40 which holds in position a cord 41 and is forced or slid into a channel portion 24, the cord 41 being then tensioned and made fast by means not shown or the ends of the cord are fastened together by knotting.
Patent GB-512531-A (GB)
Title: Improvements in the lubrication of internal-combustion engines
IPC: F01M1/08
Filed: 1938-05-05
Abstract: 512,531. Lubricating internal-combustion engines. BRISTOL AEROPLANE CO., Ltd., FEDDEN, A. H. R., and MANSELL, H. C. May 5, 1938, No. 13431. [Class 12 (iii)] [Also in Group XXIV] In an internal-combustion engine having a balance weight 30 opposite the crank-pin 14, a lubricant duct 29 leads from the interior 28 of the hollow crank shaft to a discharge orifice 32 at the periphery of the balance weight so as to produce a curtain of oil spray inpinging on to the cylinders and sliding valve sleeves 20. The duct 29 is lined with a tube 36 Fig. 3, supporting a spring-pressed ball valve 40. This valve is located on the crank-shaft axis so as to be unaffected by centrifugal force, and is loaded so that oil only passes when it is at a predetermined pressure in the crankshaft.. Oil enters the tube 36 through narrow notches 44 which act as an oil filter. Specifications 293,968, [Class 12 (iii)], and 473,881, [Group XXIV], are referred to.
Patent GB-763503-A (GB)
Title: Improvements in alternating current frequency measuring apparatus
IPC: G01R23/02
Filed: 1954-05-07
Abstract: 763,503. Frequency discriminators MINNEAPOLIS-HONEYWELL REGULATOR CO. May 7, 1954 [Oct. 30, 1953], No. 13455/54. Class 40(5) A.C. frequency is measured by a synchronous contacting vibrator 15 which, during alternate half cycles, fully charges a condenser 20 to the voltage of line 87 and discharges it to a R-C filter 25, both the charge and discharge producing pulses of same polarity across the input resistance line 24, 22, 23 of the filter, and an average D.C. output proportional to A.C. frequency. The time constants of the charging and dischargeing resistances with the condenser 20 are preferably less than the contact times of the blade of the vibrator the switch contacts, and the contact times may each be one quarter of a cycle of the A.C. supply. The filter D.C. output is amplified and measured by a self-balancing potentiometer bridge comprising a further full-wave synchronous vibrator 38 feeding a centre-tapped transformer 42A, the filter D.C. output and the voltage of the potentiometer 65 being applied to the vibrator blade 40 and centre-tap of transformer 42A respectively through chokes 48, 49. The A.C. output of transformer 42A is therefore of amplitude and phase dependent on any deviation of the potentiometer voltage tapping from the filter D.C. output and is amplified by an amplifier 46 whose output controls a two-phase reversible motor 56 driving the potentiometer tap 65 till it equals the voltage output of the filter 25. An indicator 70 connected to the potentiometer may directly indicate on a scale 71 the A.C. mains frequency. The condenser 20 may be temperature compensated by a temperature sensitive resistor 21, or such a, resistor in series with resistor 22' or 23. Specification 568,204 [Group XXV] is referred to.
Patent GB-107484-A (GB)
Title: Improvements in or relating to Miners' Safety Lamps.
Inventor: BEST WILLIAM
IPC: F21L23/00
Filed: 1916-09-22
Abstract: 107,484. Best, W. Sept. 22, 1916. Miners' safety lamps.-In a miner's safety lamp having a central flue 2 with a contracted upper end 3, a casing 5 forming a reservoir for the combustion gases encloses the contracted end 3, and the crown 6 of the casing 5 is formed with a central tube or outlet 7 of less cross-sectional area than that of the upper end 3 of the flue 2.
Patent GB-1198917-A (GB)
Title: Process for the Manufacture of beta-Alkoxythiocarboxylic Acid Esters
IPC: C08L27/06
Filed: 1968-03-20
Abstract: 1,198,917. Thiocarboxylic acid esters. WACKER - CHEMIE G.m.b.H. 20 March, 1968 [23 March, 1967], No. 13462/68. Heading C2C. A #-alkoxythiocarboxylic acid ester of general formula or a polymer thereof is prepared by reacting a monothioacetal or a monothioketal of general formula or a polymer thereof with a ketene of general formula CR 2 <SP>1111 </SP>= C = O in the presence of a strongly acid catalyst at a temperature in the range from -80 to 200 C; R in the above formulµ is H or alkyl, R<SP>1</SP> is H, an optionally substituted alkyl or alkylene radical or a mono- or di-valent aryl radical; R<SP>11</SP> is an alkyl, aryl or aralkyl radical which may be substituted by halogen provided that the valencies of the carbon atom of the R<SP>11</SP> radical which is in the α-position to the sulphur atom are satisfied by hydrogen and/or carbon, R<SP>111</SP> is an alkyl radical which may be substituted by chlorine except on the carbon atom α to the oxygen atom; or R<SP>11</SP> and R<SP>111</SP> may be joined to complete a heterocyclic ring; and n is 1 or 2. If the cyclic monothioacetals are used, i.e. those compounds in which R<SP>11</SP> and R<SP>111</SP> complete a heterocyclic ring then the corresponding cyclic ether-thiolactone oligomerizes to give the polyether-thioester. If linear polymonothioacetals are used as starting materials the corresponding polyether - thiocarboxylic acid esters are obtained. Examples are given of the preparation of (a) #-ethoxy-thiobutyric acid butyl1 ester; (b) #-ethoxy-γ-ethyl-thiocaprylic acid ethyl ester; (c) #-ethoxy-thiobutyric acid phenyl ester; (d) a product having the structure in which n is approximately 4; (e) a product having the structure and (f) #-benzyl-ether-thiobutyric acid butyl ester.
Patent GB-259864-A (GB)
Title: Improvements in or relating to multi-colour pencils
IPC: B43K24/10
Filed: 1926-05-28
Abstract: 259,864. Ruf, C. E. Feb. 16, 1926, [Convention date]. Pencil holders.-In a magazine pencil holder provided with a number of holders for differently - coloured leads separately and selectively movable in slots in a guide tube by the engagement with their offset heads of a sleeve slidable and rotatable in the outer casing, the lead holders not in use are retained in withdrawn position by means of a ring mounted on the end of the guide tube and engaging the heads of the lead holders. The guide tube b is fixed in the casing a, and is formed with a number of slots c wherein the lead holders d are adapted to slide. The lead holders are formed with flattened offset heads c engaged by the inturned end h and a projection i on a sleeve g slidable in the casing. The projection i engages the slot c in which the lead holder is housed to prevent rotation, so that when the screw-threaded tube) k is rotated, longitudinal movement is imparted to the sleeve g. To effect the propulsion of any desired lead, the cap m is unscrewed from the end of the casing a, and the sleeve g withdrawn, the lead holder in forward position being also withdrawn through the engagement of its head e and the end h of the sleeve. When the sleeve is fully withdrawn, the projection i leaves the slot c to permit the sleeve to be rotated, until a longitudinal groove p therein, corresponding with the desired lead, is opposite an indieating-perforation in the end of the casing. The sleeve g is then returned into the casing, and the projection i, engaging the head of the selected lead holder, pushes it forward. The lead holder can then be adjusted for writing by the rotation of the tube k. To prevent the lead holders not in use from sliding forward under the influence of gravity, a split ring r is mounted on the end of the tube b below the position normally occupied by the heads e. The ring r is turned with the sleeve g so that its slot u registers with the projection i either by a spring v, Fig. 2, secured to the inner surface of the sleeve, or by an inwardly-extending stop w, Fig. 5, on the inturned end h.
Patent GB-167847-A (GB)
Title: Improvements in or relating to supporting clamps for wires
IPC: H01R4/42
Filed: 1920-05-17
Abstract: 167,847. Mahler, E., (Mahler, H., and Mahler, 0.). May 17, 1920. Clamps, screw.-A clamp for supporting wires comprises the parts 10, 20, the former having a recess or recesses 11 displaced from the general axis of the wire, and the latter a corresponding projection 21. A single bolt or screw may be passed through holes 30 to secure the parts together and to a support. The clamp may have more than one wire channel, and may be made of insulated material to support electric wires. Reference has been directed by the Comptroller to Specifications 5196/88. 5913/88, 908/91, 12417/99, 6400/05, 14403/06, 19834/09, 9734/12, and 27738/12, [all in Class 36, Electricity, Conducting &c.].
Patent GB-664857-A (GB)
Title: Improvements in or relating to electric circuit arrangements for operating high pressure metal vapour electric discharge devices
IPC: H05B41/19
Filed: 1949-05-20
Abstract: 664,857. Supply systems for space discharge apparatus. GENERAL ELECTRIC CO., Ltd., and WILLOUGHBY, A. H. April 20, 1950 [May 20, 1949], No. 13597/49. Class 38 (iv). The auxiliary discharge of an A.C. operated HPMV device is initiated and maintained by either of two starting circuits which maintain the discharge for a relatively short or relatively long period after the main discharge has struck, selecting means responsive to the respective cold or hot condition of the device rendering operative the appropriate starting circuit. The lamp L has two main electrodes 2, 3 connected to supply terminals 4, 5, and an auxiliary filament electrode 1 supplied with heating current from a transformer T1 also connected to these terminals, while a step-up transformer T2 supplies a striking voltage across the electrodes 1, 2. When the lamp is cold the auxiliary discharge strikes quickly, in the preferred form, instantaneously, before the arranged time of a short delay switch C1, and the discharge current, flowing through an auxiliary discharge ballast resistor R2, energizes the coil of a voltage relay Q to open relay contacts Q1, thereby open-circuiting the heating transformer and switch coil C1 When the main electrodes strike, the discharge current in a main discharge ballast resistor R1 energizes the coil of a voltage relay P and its contact P3 opens to de-energize the coil of switch C2 whose opening contacts interrupt the auxiliary discharge circuit. Should the lamp be hot short delay switch C1 makes before the auxiliary discharge strikes, thereby energizing a relay S which closes maintaining contacts S1, S3. Heater current is supplied and interrupted on striking of the auxiliary arc as before, but on striking of the main arc the auxiliary arc is maintained through closed contact S3 until the contacts of a long delay, thermal switch D open to break the circuit of relay S and thereby interrupt the auxiliary arc. The Specification describes circuit parameters.
Patent GB-593795-A (GB)
Title: Improvements relating to the coating of metallic articles with enamel
IPC: C03C8/00
Filed: 1944-07-17
Abstract: 593,795. Enamels. FERRO ENAMEL CORPORATION. July 17, 1944, No. 13649. Convention date, March 13. [Class 56] A slip for application to metallic articles by firing directly thereto, or over a previously fired porcelain enamel ground coat, comprises a suspension in an aqueous solution of a soluble silicate (e.g. sodium silicate of Baume 41‹), of an inorganic siliceous filler such as kaolin, a porcelain enamel frit, and a minor amount of uniformly dispersed organic material, such as hard asphalt or natural or synthetic resin, which, while not volatilizing at temperatures up to those normally prevailing during application and preliminary drying of the coating mixture (e.g. up to 350‹ F.), will be substantially completely driven off during firing (e.g. at 1500‹ F.). The surface texture of the finished coating may be controlled by varying either the proportions of the above ingredients or the time and temperature of firing, and additional materials such as colouring oxides may be included in the slip which may be ground to a mesh of 325, and applied by brushing, dipping or spraying. The frits for the ground coat and to be included in the slip may comprise a smelting of quartz, dehydrated borax, soda ash, sodium nitrate and fluorspar together with either (for the ground coat) feldspar, cobalt oxide, manganese oxide, black nickel oxide, calcspar and magnesium carbonate, or (for the production of an acid-resistant frit for inclusion in the slip as above) litharge titanium oxide and sodium silico-fluoride, the smelting temperature in the latter case being 2300‹ F. Titanium, tin, zinc, zirconium, &c. oxides may be used for opacifying, chromic oxide for a green finish, a fired mixture of chrome and copper oxides together with an opacifier for grey, or a complex oxide of chromium, zinc, iron, aluminium, titanium, antimony and magnesium oxides for olivedrab.
Patent GB-1089207-A (GB)
Title: Coupling
IPC: B60D1/04
Filed: 1966-03-28
Abstract: 1,089,207. Coupling devices. LA MECANO SOUDURE-REMOISE. March 28, 1966 [March 24, 1966], No. 13685/66. Heading B7T. A coupling device for connecting a trailer or semi-trailer (not shown) to a towing vehicle e.g. an agricultural tractor (not shown), comprises a hook 2 which is pivoted about a substantially horizontal axis (10), Figs. 1, 2 (not shown), to a mounting plate (13), Figs. 7, 8 (not shown), screwed to the tractor, and which is movable about the axis (10) by means of chains (25), Fig. 9 (not shown), linking the usual lifting arms (not shown) of the tractor to journals (8), Figs. 1, 2 (not shown), on the hook 2, between a lower, disengaged position and a higher, towing position in which the hook 2 engages the ring 26 of a semi-trailer towing bar or coupling triangle; and a locking member 37, 39 biased by a spring (44), Figs. 10, 11 (not shown), to retain the hook in its towing position, and rotatable by means of a lever (40), (41) to allow the hook to be lowered. The locking member 37, 39 is carried by a base-plate 28, 29, 30 screwed to the tractor, and its pivoting is limited by stops (45), 46), Fig. 10 (not shown). A safety catch (47)-(52), Figs. 13, 14 (not shown), is carried by the tractor and prevents involuntary release of the hook 2 by locking the lever (40), (41). In the towing position, an abutment (18), Figs. 1, 2 (not shown), on the hook 2 bears against the tractor chassis (not shown). The chains (25), Fig. 9 (not shown), are connected to eye bolts (23) and threaded sockets (22) of drag links (19) which receive the journals (8) of the hook 2.
Patent GB-1431232-A (GB)
Title: Fibre-reactive monoazo dyestuffs
IPC: C09B62/008
Filed: 1974-03-28
Abstract: 1431232 Amino sulphonic acids BAYER AG 28 March 1974 [29 March 1973] 13780/74 Heading C2C [Also in Division C4] 1 - Hydroxy - 7 - phenylamino - naphthalene- 3,6 - disulphonic acid is prepared by reacting 1- hydroxy - 7 - amino - naphthalene - 3,6 - disulphonic acid with sodium bisulphite and aniline ; similarly 7-(substituted phenylamino) compounds are prepared using 1-amino-2-, -3-, or -4-methyl-benzene, 1-amino-2-, -3-, or -4- methoxy-benzene, 1-amino-3- or -4-carboxybenzene and 1-amino-3- or -4-sulphobenzene in place of aniline. 4 - (2<SP>1</SP>,6<SP>1</SP> - Difluoro - 5<SP>1 </SP>- chloro - pyrimidinyl- 4<SP>1</SP>-)amino-1-amino-2-sulpho-benzene is prepared by reacting 1,4-diamino-2-sulpho-benzene with 2,4,6-trifluoro-5-chloropyrimidine.