baber/WOPTO huggingface dataset:
Patent GB-1066572-A (GB)
Title: Improvements in Regulators for Generators
IPC: H02J7/16
Filed: 1964-07-14
Abstract: 1,066,572. Automatic voltage control. ROBERT BOSCH G.m.b.H. July 14, 1964 [July 20, 1963], No.29436/64. Heading G3R. A voltage regulator for a generator 10, which may be an alternator with a rectified output, comprises a main transistor 21 in series with the field winding 19 of the generator; a control transistor 22 which has its base connected by way of a Zener diode 23 to the tap 24 of a potentiometer 25 connected across the generator output and which is arranged to switch transistor 21 by way of an amplifying transistor 28, and hence to control the field current, in dependence upon output voltage variations; and a transistor 35 arranged to block transistors 21 and 28 and thereby protect them against overload should the field current become excessive due to a short circuit in the field winding. Transistor 35 has its collector connected to the collector of transistor 22, and has its base connected over a resistor 36 to a resistor 31 in the emitter lead of transistor 21 and over a capacitor 37 and a resistor 38 to the collector of transistor 21. Positive feedback through the circuit 37, 38 ensures that transistor 35 is quickly rendered conductive to block transistors 21, 28 when the potential drop across resistor 31 exceeds a predetermined value representative of an excessive field current.
Patent GB-884158-A (GB)
Title: New colouration process for cellulose textile materials
Inventor: SELTZER IRWIN
IPC: D06P3/66
Filed: 1959-08-28
Abstract: In the dyeing of cellulose textile materials, the fibres of which are tightly packed or tightly woven or swell readily during wet processing, with reactive dyestuffs, improved results are obtained by previously or simultaneously treating the materials with a compound of the formula <FORM:0884158/IV (c)/1> wherein R represents the radical of a watersoluble aromatic compound, -X- stands for -O-, -S-, or <FORM:0884158/IV (c)/2> in which n is a small integer, and each Y represents independently a chlorine atom, a bromine atom or a thiocyano group.  Specified compounds are 4 : 6-dichloro-triazines substituted in the 2-position by (61-sulpho-21-naphthylamino), (411-amino-31 : 311-disulpho-diphenyl-41-amino), (41-b -sulphatoethoxyphenylamino), (21-hydroxy-31 - carboxy - 51 - sulpho - phenylamino) and (31 - amino - 41 - sulphophenyl - amino) groups. The dyeing conditions are those described in Specifications 733,471, 816,925, 820,470, 823,098 and 838,336. The reactive dyes are of the nitro, azo, anthraquinone or phthalocyanine series containing the usual reactive groups and in this respect numerous Specifications are also referred to. Examples are given.  Specifications 209,723, 298,484, 460,224, 740,533, 775,308, 772,030, 774,925, 781,930, 785,120, 785,222, 802,198 and 838,335 also are referred to.
Patent GB-1260105-A (GB)
Title: Projectile ammunition
IPC: F42B10/06
Filed: 1970-06-17
Abstract: 1,260,105. Cartridges. AAI CORP. 17 June, 1970 [19 June, 1969], No. 29480/70. Heading F3A. A cartridge comprises a cartridge case 11 containing a projectile 31, Fig. 1, and resilient padding 41 which is disposed about frangible fins 39 of the projectile and provides an end wall for a chamber containing a propellant powder 51. The padding comprises a blanket of polyurethane or polyethylene foam. The cartridge case comprises a linear polyethylene sleeve 21, a brass base 25, and a plyed paper, or plastics wad 27. The projectile comprises two parts 33 and 35, Fig. 3, formed of nylon or polyethylene. Grooves 33a render the part 33 frangible on impact with a target, so as to disperse a lachrymatory liquid contained within the projectile. A tube 37 is used for filling the projectile with the liquid and, prior to using the projectile, is melted to form a closure. The fins 39 are canted to an extent of 1-5 degrees to provide rotational stabilization during flight. The projectile is secured in the cartridge case by a rolled over end portion 23a, Fig. 1, of the sleeve 21. The rolling is effected with an end rolling tool (71, Fig. 9, not shown) whilst the sleeve 21 is radially restrained by a guide cylinder (73).
Patent GB-814300-A (GB)
Title: Method of producing magnetic elements
IPC: C04B35/26
Filed: 1955-10-17
Abstract: 814,300. Magnetic compositions. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 17, 1955 [Oct. 18, 1954], No. 29513/55. Class 38 (2). A magnesium, manganese ferrite having a rectangular hysteresis loop and low coercivity is made by milling oxides in water, drying, sintering at 970-1000‹ C. in air for one hour, granulating the product and separating it by screening into particles having different size ranges. Suitable proportions of particles from each size range are mixed with a binder such as polyvinyl alcohol and formed into balls on a vibrating screen. The latter are compressed into the required shapes in moulds, which after removal are dried and sintered, at 1425-1450 C., preferably on a rhodium or platinum support, Figs. 4a, 4b (not shown), and 4c. Such a support improves the sharpness of knee of the hysteresis loop from the dotted to the solid line, Fig. 3. For maximum rectangularity the mol. proportions should be Fe 2 O 3  30-50 per cent; MgO 25-40 per cent; MnO 15-14 per cent and for minimum coercivity, Fe 2 O 3  35-40 per cent; MgO 10-20 per cent; MnO 35-50 per cent.
Patent GB-972047-A (GB)
Title: Improvements in the refining of aluminium
IPC: H02H3/04
Filed: 1962-08-01
Abstract: In a sub-halide distillation process for the recovery of aluminium from alloys containing manganese which are solid at the reaction temperature, the sub-halide vapour is condensed in two stages (1) with continuous addition of fresh alloy and removal of spent alloy until a predetermined level of manganese in the effluent is reached and (2) with the supply of fresh alloy, and optionally the withdrawal of spent alloy, stopped, continuing to pass the trihalide vapour until all the aluminium, that economically can be, has been stripped out.  The gaseous products of the two stages are condensed separately.  During the charging of fresh alloy and withdrawing of the stripped alloy for starting a fresh cycle the trihalide flow is reduced or stopped.  Using aluminium trichloride as the reactant the temperature in the convertor is 1000-1400  DEG C. and the condenser is preferably at a temperature of 700-900  DEG C. Two or more condensers may be used to collect the different fractions or one may be used with intermediate emptying between stages.
Patent GB-1372919-A (GB)
Title: Process for separating an inert gas or gases from gas mixtures containing carbon dioxide
IPC: F25J3/02
Filed: 1972-06-23
Abstract: 1372919 Separating gases KERNFORSCHUNGSANLAGE JœLICH GmbH 23 June 1972 [25 June 1971] 29525/72 Heading F4P A process for separating one or more inert gases from a mixture of the gas(es) with carbon dioxide, e.g. the gas mixture from combustion of irradiated nuclear fuel, comprises the steps of compressing the mixture to a pressure at which the CO 2  begins to liquefy, washing the compressed mixture with liquefied CO 2  and then rectifying the resulting solution of inert gases in CO 2  to obtain a fraction of high inert gas content. Apparatus for the process comprises a compressor 1 and heat exchanger 5 leading the mixture to the base of a scrubbing column 6, gas emerging at the top being vented to atmosphere through a valve 7. The liquid gathering at the base of column 6 is then pumped to a rectification column 9, from the top of which a fraction of high inert gas content (about 10%) is led off and passed via valve 10 to a collection vessel 11 or refluxed. The liquid CO 2  collected at the base of column 9 is pumped through a heat exchanger 13 to the top of column 6. If the gas mixture also contains a substantial quantity of another gas e.g. N 2 , a further reflux rectification column, is introduced between the columns 6 and 9, Fig. 2 (not shown).
Patent GB-815768-A (GB)
Title: Apparatus for use in constructing shaft linings
IPC: E21D5/00
Filed: 1957-09-19
Abstract: 815,768. Lining mine shafts. UNTERNEHMUNGEN DER EISENUND STAHLINDUSTRIE A. G., FUR. Sept. 19, 1957 [Sept. 20, 1956], No. 29528/57. Class 20(2) [Also in Group XXI] Apparatus for constructing shaft linings comprises a support disposed over the shaft mouth for welding shaft lining rings 6 which comprises parts 4 which can be displaced laterally. After the parts of the ring are welded with X seams within a frame of abutments on the platform (Fig. 2, not shown, refers) the parts 4 of the support are withdrawn and the ring 6 lowered from a tower (not shown) into the shaft where they may be welded with V seams to the underlying ring, the space between the ring and the shaft or two thicknesses of rings being filled with concrete. Adjustable ring segments (not shown) surround the ring during lowering. A two-part cylindrical wall 7 surrounds an aperture for cables in the platform. Freezing chambers are indicated at 3.
Patent GB-796183-A (GB)
Title: Improvements in and relating to polarographic cells
Inventor: BERGEN STEPHEN ARCHBOLD
IPC: G01N27/48
Filed: 1955-10-17
Abstract: 796,183. Electric tests. CAMBRIDGE INSTRUMENT CO., Ltd. Sept. 18, 1956 [Oct. 17, 1955], No. 29553/55. Class 37. In a polarographic cell the solution to be analysed is passed through a mercury pool cathode. In the arrangement of Fig. 1 the mercury pool cathode is mounted in a glass container a. The solution under test is fed to a nozzle d by a pipe c at such pressure as to bubble through the mercury in discrete drops. The anode f is situated in the nozzle and both anode and cathode are corrected to meter h and current source g. In the arrangement of Fig. 2, the mercury rests on a mesh of polythene or nylon which is pervious to the solution under test, but not to mercury. The solution passes through the membrane in a continuous stream. The anode k is either a silver wiremesh or silver deposited on the insulating mesh. In a further arrangement (Fig. 3, not shown), the anode is a further pool of mercury situated " upstream " from the cathode.
Patent GB-494795-A (GB)
Title: Improvements relating to pistons for gas compressors
IPC: F16J9/28
Filed: 1937-10-29
Abstract: 494,795. Pistons. KLEIN, SCHANZLIN, & BECKER AKT.-GES. Oct. 29, 1937, No. 29594. Convention date, Oct. 29, 1936. [Class 122 (i)] A piston is provided with selflubricating guiding rings 4 and segmental self-lubricating packing-rings 5 expanded by springs 6. Both sets of rings may be supported in carrier rings 3 secured by a coverplate 2 and nut 7. Specification 439,301 is referred to.
Patent GB-599778-A (GB)
Title: Improvements relating to the production of phosphate coatings on metal
IPC: C23C22/10
Filed: 1945-11-07
Abstract: In a process for coating a metal or alloy surface with a phosphate, the surface is treated with a phosphate solution containing a heavy metal phosphate, i.e. a phosphate of a metal other than an alkaline or alkaline earth metal, with or without free phosphoric acid, in which the accelerator is ammonium nitrate which is reduced to an unstable nitrite.  The ammonium nitrate may be replaced by a metal nitrate and an ammonium salt other than the nitrate or urea, hydrazine, guanidine, amino-guanidine sulphamic acid or a sulphamate or a mixture thereof.  The solution may contain ferrous iron and the heavy metal may be iron, manganese, zinc or cadmium.  The free acid should be maintained at a low value, e.g. by suspending scrap ferrous metal in the bath.  The bath may be replenished by adding a concentrated chemical containing phosphoric acid and ammonium nitrate, or an equivalent mixture, in the required proportions. Specifications 386,739 and 514,443 are referred to.
Patent GB-190600-A (GB)
Title: A new or improved case for containing a camera
IPC: A45C11/38
Filed: 1921-11-09
Abstract: 190,600. Lyde, C. H. Nov. 9, 1921. Cameras, cases for.-A case for a folding camera is so constructed that the camera can be used without removing it from the case. The leather case has a top flap 1 for permitting insertion or removal of the camera, an aperture 5 closable by a flap 3 for giving access to the filmwinding handle, a falling-front 7 with supporting struts 9, a press-catch device 12, 14 for holding the front 7 closed, so arranged as to release both the falling front 7 and the falling front of the camera, and a rear aperture 18 coinciding with the aperture exhibiting the film numbers in rear of the camera. The top 1<a> of the rear wall of the camera lies below the position of the aperture 1<b> provided in certain cameras for recording the title of the picture. The carrying strap 17 is passed through loops 19 on the bottom and on one side of the case, and is attached to the case at the other side by a releasable fastening, such as a pin and button hole, which is disengaged before the case is turned into position for taking horizontal photographs. In a modification, the top flap 1 folds from the rear to front, and a hinged flap is provided to give access to the aperture 1<b>.
Patent GB-602837-A (GB)
Title: Improvements in or relating to the regulation of two-stroke internal-combustion engines
IPC: F01L1/352
Filed: 1945-11-08
Abstract: 602,837. Fluid-pressure servomotor-control systems. GROUPEMENT FRANCAIS POUR LE DEVELOPPEMENT DES RECHERCHES AERONAUTIQUES. Nov. 8, 1945, No. 29854. Convention date, Sept. 24, 1941. Drawings to Specification. [Class 135] [Also in Groups XXVII and XXVIII] In a two-stroke internal-combustion engine cylinder having two exhaust valves the timing of one of which is adjustable, the pressure in the exhaust pipe is maintained constant as the altitude increases by a valve therein which is moved by a piston operated by pressure fluid, controlled by a bellows subject to exhaust pipe pressure.
Patent GB-805008-A (GB)
Title: A drive for the sheet-feed mechanism of printing presses
IPC: B41F21/05
Filed: 1955-10-19
Abstract: 805,008. Feeding sheets. SCHNELLPRESSENFABRIK KOENIG & BAUER A.G. Oct. 19, 1955 [Nov. 11, 1954], No. 29929/55. Class 100(1) Sheet-carriers. Sheets are fed from a table 1 directly to the impression cylinder 3 of a printing machine by a drum 2 or the like driven by an intermediate countershaft gear 10 which is rotated at periodical intervals by a Geneva mechanism. The gear 10 meshes with a gear 11 secured to the shaft of the drum 2. The drum 2, which is provided with two opposed sets of grippers 5, 6, transfers a sheet to the cylinder 3 every half revolution and then stops: during the actual transfer of the sheet, teeth 12 or 13 on the drum 2 mesh with a gear 7 on the cylinder 3 to ensure true registration of the sheet. The impression cylinder 3 is driven from a shaft 34 by worm gears 33, and the gear 7 thereon drives a gear 8 to which is secured a gear segment 9, and a driving cam disc 21 provided with rollers 19, 20 spaced apart at 120 degrees. The turn-table 14 of the Geneva device, secured to the shaft of the gear 10, comprises two pairs of flanks 15, 16 and 17, 18 engageable by the rollers 19, 20, and rollers 25, 26, 27, 28 which co-operated with the arc-shaped periphery 24 of the disc 21. The rollers 25-28 are mounted on eccentric studs which provide adjustment. In operation, from the position of rest shown in Fig. 1, the sheet transfer drum 2 is first started to rotate by the roller 19 engaging the flank 15 on the table 14, the roller 26 moving over the periphery 24 and into braking co-operation with a nose 23 on the cam disc 21. At the peak speed of the drum 2, which equals that of the cylinder 3, the gear segment 9 meshes with the gear 10 of the table 14 so that the drum 2 is then driven at uniform speed. The gear segment 9 then leaves the gear 10, and the roller 20 engages the flank 18 to brake the drum 2 gradually to a stand-still, the nose 22 of the disc 21 engaging the roller 27 to act as a counter cam. At this stage of rest the drum 2 and table 14 have rotated half a revolution, and a sheet has been taken by the cylinder 3. The two rollers 27, 28 now rest on the periphery 24 of the disc 21, with no rotation of the drum 2 possible, until the cylinder 3 and disc 21 again reach their initial positions as shown in Fig. 1. The drum 2 is at rest, accelerates, rotates uniformly, and decelerates, respectively, during one-sixth, one-third, one-sixth, and one-third of a revolution of the impression cylinder 3, and the drum 2 only rotates one-half of a revolution. In the stop position of the drum 2, a locking roller 29 is spring-pressed into one of two notches 30, 31 of a disc 32 secured to the drum. A delivery cylinder 4 takes the sheets from cylinder 3 after printing.
Patent GB-1494805-A (GB)
Title: Indole derivatives
IPC: A61K31/445
Filed: 1975-07-17
Abstract: Indole derivatives of the formula I <IMAGE> and the corresponding acid addition salts and quaternary ammonium salts of these compounds, in which formula     R is hydrogen or lower alkyl,   R<1> is hydrogen, lower alkyl, aryl-lower alkyl or aroyl,   R<2> is hydrogen, lower alkyl or aryl, R<3> is hydrogen, halogen, lower alkoxy, aryl-lower alkoxy, hydroxyl or lower alkyl,   R<4> is acyl, A is an alkylene radical or a mono- or diketo or hydroxyalkylene radical having 1 to 5 carbon atoms and   X is oxygen or sulphur, are obtained by acylating a corresponding compound of the formula I in which R<4> is hydrogen, and optionally converting the resulting compounds into the quaternary ammonium salts. The compounds of the formula I which can be prepared according to the invention have a pharmacological activity, such as, for example, an action on the cardiovascular system and in particular a hypotensive and/or antihypertensive activity.
Patent GB-362075-A (GB)
Title: Improvements in super-heterodyne radio reveiving apparatus
IPC: H04B1/28
Filed: 1930-10-07
Abstract: 362,075. Valve amplifying and detecting circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and BLIGH, N. R., of General Electric Co., Wembley, Middlesex. Oct. 7, 1930, No. 30011. [Class 40 (v).] The second detector of a superheterodyne receiver having an intermediate frequency of 50-100 kc. consists of a dry plate rectifier 4, in series with a tuning condenser 5 and inductance 6.
Patent GB-1110141-A (GB)
Title: Tape transport mechanism
IPC: G11B15/60
Filed: 1965-07-15
Abstract: 1,110,141. Tape recorders. RADIO CORPORATION OF AMERICA. 15 July, 1965 [24 Aug., 1964], No. 30195/65. Heading G5R. In a tape recorder employng a cassette 11, the tape (14) is aligned in the guide 25 by the action of inclined roller 34 as it moves towards the capstan 33. The roller mounting pivots so that the roller moves the tape downwardly, Figs. 8 and 9 (not shown). A slot 56 in the guide prevents the tape being displaced beyond its lower edge.
Patent GB-841902-A (GB)
Title: Improved sealing assembly
IPC: F16J15/16
Filed: 1957-09-27
Abstract: 841,902. Piston packing; joint-making packing. PARKER-HANNIFIN CORPORATION. Sept. 27, 1957 [Sept. 28, 1956], No. 30291/57. Classes 122 (1) and 122 (3). Sealing means between cylindrical inner and outer members 10, 21, Fig. 2, comprises a resilient packing ring 17 mounted in a groove 11 in one member (the inner 10, as shown) and a continuous back-up ring 22 of a relatively harder material than the ring 17 mounted in a stepped recess 15 formed at one side of the groove 11. As shown in Fig. 2, applied to a piston 10, the packing ring 17, which may be of rubber, is a close fit between the walls 12, 14 of the groove 11 and has an inside diameter which, when the ring is initially assembled, may or may not contact the bottom 18 of the groove since, under pressure, sealing contact is provided between the ring and the wall 14. The back-up ring, which prevents extrusion of the packing ring, may be made of " Teflon " (Registered Trade Mark) and has an inside diameter at least equal to the mean diameter of the packing ring 17 so that, on assembly, a part of the ring may be passed over the flanged end 24 of the piston into the groove 11, thereby allowing the remainder to clear the flange and thus permit the fitting of the ring on to the step. Any undue twisting of the packing ring within the groove 11 during reciprocation of the piston is prevented by providing in the bottom of the groove recesses 26, 27 into which the ring may be deformed. As shown in Fig. 5, a packing ring 32 and back-up ring 33 are mounted in the closure ring 31 of an hydraulic cylinder 30 or, alternatively, both rings may be mounted within the cylinder wall and cooperate with an internal closure plug.
Patent GB-420551-A (GB)
Title: Improvements in and relating to bedsteads and like articles of furniture
IPC: F16B12/58
Filed: 1933-11-01
Abstract: 420,551. Furniture joints. GARSON, L., and GARSON, J., Ford Body Works, Trafford Park, Manchester. Nov. 1, 1933, No. 30308. [Class 52 (ii)] Means for connecting members of a bedstead or other articles of furniture in which one member 12 is of wood or relatively soft material, comprise a block 18, preferably of metal, inserted into the wooden member, and having a transverse passage 19 for the reception of a projecting part 13 of the other member 10, and a hole 20 for a securing member, such as a cone headed screw 24, intercepting the transverse passage, the securing member being adapted to draw the projecting part 13 into the passage 19 to clamp the members together. As shown, the hole 20 is formed with a cylindrical mouth, a conical part, and a screw-threaded part. The aperture in the part 13 is elongated and chamfered at the outer end to conform to the conical screw 24. A face plate 26, apertured for the reception of the projection 13, may be located between the members 10 and 12.
Patent GB-1305686-A (GB)
IPC: C07C17/02
Filed: 1971-06-29
Abstract: 1305686 Bromochlorination SOLVAY & CIE 29 June 1971 [29 June 1970] 30417/71 Heading C2C Bromochloroalkanes of formula in which each of R 1  to R 4  is hydrogen, halogen, methyl, ethyl, halomethyl or haloethyl, are prepared by reaction of an olefin of formula R 1 R 2 C = CR 3 R 4  with a mixture of chlorine and bromine, the ratio of chlorine to bromine being greater than 1, in a liquid medium, in the presence as catalyst of oxygen and/or a metal compound. Metal compounds specified are oxides, chlorides and bromides of copper, silver, beryllium, magnesium, calcium, strontium, barium, zinc, titanium, chromium, molybdenum, iron, cobalt, nickel, aluminium, tin, lead, antimony and bismuth. Ferric chloride is exemplified. The catalyst may alternatively be an iron halide dissolved from the reactor wall. The reaction medium may be a bromochloroalkane or other acyclic halohydrocarbon, hexachlorobenzene one or more nitroalkanes or nitrobenzene. The bromochloroalkanes are nematocides. 1,2-Dichloroethane is also obtained in the above process, and may be separated and pyrolysed to vinyl chloride or thermally chlorinated to trichloroethylene or perchloroethylene.
Patent GB-451015-A (GB)
Title: Improvements in and relating to bottles or like receptacles
IPC: B65D47/42
Filed: 1935-11-04
Abstract: 451,015. Reservoir pads. CARLSSON, C. J., and GUSTAFSSON, E. G., Filipstad, Sweden. Nov. 4, 1935, No. 30441. [Class 19] [See also Group XVII] A closure for a gum bottle which facilitates spreading the gum or paper &c. comprises a capsule 2 which secures an elastic disc 4 having a lateral tongue which can be deflected in the manner shown when applying the gum. The tongue is controlled by a spring 8.