baber/WOPTO huggingface dataset:
Patent GB-788208-A (GB)
Title: Improvements in devices for interrupting electric currents by explosive means
IPC: H01H9/10
Filed: 1956-01-13
Abstract: 788,208. Cut-outs. CALOR-EMAG ELEKTIZITATS-AKT.-GES. Jan. 13, 1956 [Jan. 15, 1955; July 20, 1955; Aug. 10, 1955; Nov. 12, 1955], No. 1277/56. Class 38 (1).  A current interrupting device comprises a tubular conductor 3 containing an explosive charge 5 and connected to conical heat-dissipating members 2 to which conductors 12 or blade contacts are connected, a lead-lined and externally reinforced casing 1 surrounding the members 2, 3. The charge 5, which forms part of a cartridge 4, is inserted through a hole in one of the members 2 and may be ignited at any desired time to rupture the conductor 3 by connecting wires 6, 7 to a potential source. Alternatively ignition means which act mechanically or purely thermally may be employed. The conductor 3 may have longitudinal grooves or slots so that when it is ruptured, the ends fan out and form nozzles through which arc products and arc-quenching material, if provided, are discharged from the casing. A fuse wire, located in an arc-quenching chamber exteriorly of casing 1, is connected in parallel with conductor 3 to form auxiliary disconnecting means which ruptures subsequently to conductor 3 (Fig. 6, not shown). Alternatively several fuse wires 22<SP>11</SP>, Fig. 7, connected in parallel with conductor 3 may be located in the annular space between casing 1 and a surrounding jacket 24, such space being filled with arcquenching material. The fuse wires may be arranged to fuse successively in order to prevent over-voltages and to this end a resistance is connected in series with each fuse wire, the resistances being of gradually increasing value. For interrupting a high voltage circuit, a plurality of interrupting devices may be connected in series and operated simultaneously, each device having a parallel connected fuse wire with a series resistance. Fig. 10 shows three interrupting devices 3 located in a common casing 11 with a jacket 241 as in Fig. 7, parallel-connected fuse wires 221, 22<SP>11</SP> being located in the space between the casing and jacket and the fuse wire 22<SP>1</SP> being connected at 32, 33 to the junctions of the devices 3, these connections, however, being optional, as also is the provision of resistances.
Patent GB-1209069-A (GB)
Title: Semiconductor scanning devices
IPC: H05B44/00
Filed: 1968-01-10
Abstract: 1,209,069. Electroluminescence. INTERNATIONAL BUSINESS MACHINES CORP. 10 Jan., 1968 [13 Jan., 1967], No. 1368/68. Heading C4S. [Also in Division H1] A semi-conductor scanning device comprises a plurality of semi-conductor elements each having at least one PN junction, formed adjacent an electroluminescent layer 24, means for varying the relative potentials of same so that at any one time one group of elements i.e. that above the null line shown, is non-conductive, a second group below the null line is saturated and a third group about the null line is in a state between saturation and non-conduction. Ramp voltage 36 causes the null line to scan the array and A.C. modulated video input at 42 causes the third group to oscillate between the saturated and non-conductive states to excite the adjacent portion of the E.L. layer. No luminescence occurs in the major portion of the conductive region due to D.C. saturation. In Fig. 1, the device is regarded as formed of S.C. elements formed horizontally across the device each having PNPNP regions adjacent separate P- type dots 20-1, 20-2 ... 20-N forming backbiased junctions J 3  and separate ohmic contacts 22-1, 22-2 ... 22-N. A constant source of minority carriers is preferably employed, the carriers being injected into a semi-conductive layer 14 of variable potential relative to another layer 18 having a potential gradient therein, layer 16 assuming a potential distribution as a function of the adjacent layers. Above the null line the carriers recombine, J 1  junction being forward biased, but are re-injected into layer 16 below the null line, where J 1  junction is reverse biased. Player 12 may be 15 mm. thick for mechanical rigidity, the remaining layers being thin, e.g. ¢ mm. thick, to prevent hole loss by recombination, for materials such as Si. Layers 12 to 20 and conductive elements 22-1, 22-2 . . . 22-N may be replaced by a matrix of opposed diodes connected to a potential divider (Fig. 2, not shown), the E.L. layer being grounded. Low intensity light flashes produced by the P-dots becoming successively conductive when traversed by the null line may be overcome by filtering or controlling the ambient intensity to obscure the flash.
Patent GB-592363-A (GB)
Title: Improvements in electrically operated road traffic signals
IPC: G08G1/096
Filed: 1945-01-17
Abstract: 592,363. Traffic signals. TOWERS, H. E., and HODGES, H. Jan. 17, 1945, Nos. 1376 and 34363. [Class 118 (ii)] In a road traffic control mechanism in which differently coloured lamps are switched on and off automatically in turn for display at one or more signal apertures in a casing, the lamps are arranged behind a drum Q, provided with peripheral numerical signs T and intermittently rotated on a horizontal axis K so that one numeral at a time is illuminated at a signal opening for a predetermined period, e.g. one second, and is then changed instantaneously, the numerals indicating the time remaining before a change of signal. In the form shown the drum is rotated by an electric motor A, having a speed regulator B, through gear C and an arm E contacting pins F projecting from the drum, and is held in its correct rest positions by a spring H acting on a cam-wheel G. Pins M on the drum rotate a gear-wheel N operating a rotary switch O for controlling three pairs of lamps (not shown), i.e. red, amber and green, having a common reflector which focuses the light on to a display opening U. In a modification, a second signal opening may be provided for pedestrians.
Patent GB-763764-A (GB)
Title: Process for the production of ú­-xylylene dihalides
IPC: C07C17/32
Filed: 1955-01-17
Abstract: The invention comprises a process for the production of p-xylylene dihalides, by the action of a compound of the formula <FORM:0763764/IV(b)/1> in which n = 1/2 -\ba1/4 , on benzene.  The zinc com pound is obtainable by the reaction between dry hydrogen halide and a suspension of formaldehyde or paraformaldehyde and zinc halide. Some properties of the zinc compounds are referred to. Examples are given in which the zinc chloride addition product is formed by passing dry HCl through a suspension of paraformaldehyde and zinc chloride in carbon tetrachloride, and the oil product is caused to react with benzene up to 60 DEG  C.  The solvent may be recycled. The product is p-xylylene dichloride.  Zinc halide addition products may also be made with zinc bromide.
Patent GB-1368006-A (GB)
Title: 4alpha,7alpha-carbonyl-5-cyano-17-hzydroxy-3-oxo-5beta,17alpha- pregnane-21-carboxylic acid ypsilon-lactone
IPC: C07J1/00
Filed: 1972-08-24
Abstract: 1368006 A 17-hydroxy-17α-pregnane-21- carboxylic acid gamma-lactone G D SEARLE & CO 24 Aug 1972 [25 Aug 1971] 01390/74 Divided out of 1368005 Heading C2U The novel 4α,7α - carbonyl - 5 - cyano - 17- hydroxy - 3 - oxo - 5#,17α - pregnane - 21- carboxylic acid gamma-lactone is prepared by heating 17 - hydroxy - 3 - oxo - 17α - pregna- 4,6 - diene - 21 - carboxylic acid gammalactone with an alkali metal cyanide in a solvent under slightly basic conditions to form 7α,4- amino - methylidyne - 5 - cyano - 17 - hydroxy - 3 - oxo - 5#,17α - pregnane - 21 - carboxylic acid gamma-lactone and then heating this with with very dilute aqueous mineral acid. It is converted into diuretic agents of the formula and the corresponding free 7α-carboxylic acid by the methods disclosed in Specification 1,368,005.
Patent GB-1077474-A (GB)
Title: Phosphor storage target and methods of manufacture
IPC: H01J9/22
Filed: 1965-01-12
Abstract: A phosphor combined storage and viewing screen for a bi-stable storage and display tube (see Division H1) comprises a phosphur layer having a plurality of holes extending through it and consisting of zinc orthosilicate activated by mangenese, zinc beryllium orthosilicate, calcium tungstate, or zinc sulphide activated by mangenese, and may be mixed with 10 to 25% magnesium oxide for improved secondary electron emissive properties.  The layer may be 0.0015 to 0.003 inch thick, and the holes may be 0.0006 to 0.002 inch in diameter and cover 10 to 25% of the surface area of the layer. The layer may be formed by preparing a mixture of the phosphor material in an organic binder and a solvent, and adding two organic materials which, in a decalomania process, combine and separate from the remainder of the mixture to form regions of organic material containing no phosphor when the mixture is spread over a casting plate.  After applying the material to the tube faceplate these regions are decomposed and washed out to leave the holes. Alternatively a photographic technique may be used.
Patent GB-523859-A (GB)
Title: Treatment of sugar-bearing solutions
IPC: C13B20/12
Filed: 1939-01-16
Abstract: 523,859. Purifying sugar solutions. REDDIE, L. N. (Girdler Corporation). Jan. 16, 1939, No. 1521. [Class 127] Sugar solutions are purified by treating them with bentonite, at any stage from the raw juice to the final molasses. The mixture of bentonite and sugar solution is preferably heated to from 82‹ to 99‹C. to agglomerate the precipitate which may be removed as by filters of centrifuges or as a floating scum and may be treated to extract any desired non-sugar that has been removed. The process may be used in addition to any of the usual processes of sugar refining.
Patent GB-809461-A (GB)
Title: Fork lift trucks
Inventor: COLDWELL JOE DAVIDSON
IPC: B66F9/10
Filed: 1956-01-17
Abstract: 809,461. Articulated vehicles. CONVEYANCER FORK TRUCKS Ltd. Dec. 19, 1956 [Jan. 17, 1956], No. 1619/56. Class 79(3) A reach truck is provided with an articulated unit 6 coupled to a frame including outrigger members (as 1) and a mast assembly 7, the articulated unit having mounted thereon all the truck controls comprising an electric driving motor (not shown and battery 16, steering linkage, a hydraulic unit 17 for operating the mast assembly, and the driver's platform, the articulated unit 6 being supported on two wheels (as 14) one of which is driven by the motor, the other constituting an idler, the articulation between the unit 6 and outrigger frame being about a generally horizontal axis. The truck controls are all mounted on a platform 10 pivoted at 13 to a cross piece 3 of the truck frame.
Patent GB-1429155-A (GB)
Title: Process for the preparation of trimethyl benzoquinone and trimethyl hydroquinone
IPC: C07C37/07
Filed: 1974-01-14
Abstract: 1429155 Process for the preparation of trimethylbenzoquinone and trimethylhydroquinone RHONE-POULENC SA 14 Jan 1974 [15 Jan 1973] 01705/74 Heading C2C The invention comprises a process for the preparation of trimethyl p-benzoquinone which comprises oxidizing 2,3,6-trimethylphenol with hydrated manganese dioxide in the presence of a saturated aliphatic carboxylic acid containing 1-3 carbon atoms. The trimethyl p-benzoquinone may be reduced by known methods to formtrimethylhydroquinone.
Patent GB-873348-A (GB)
Title: Flexible bellows and diaphragms
Inventor: GOULDING GEORGE HENRY
IPC: F16F9/084
Filed: 1957-01-17
Abstract: 873,348. Pneumatic springs. DUNLOP RUBBER CO. Ltd. Jan. 9, 1958 [Jan. 17, 1957], No. 1739/57. Class 108(3). A bellows unit 1, Fig. 1, and a diaphragm 30, Fig. 5, for air springs comprising flexible bodies of rubber have beads 8, 38 reinforced with rings 14 of hard rubber. Both constructions have at least two layers of fabric reinforcement embedded in the rubber and wrapped round the reinforcing rings of the beads. Specification 869,346 is referred to.
Patent GB-671130-A (GB)
Title: Improvements in liquid traps
IPC: E03C1/294
Filed: 1950-01-24
Abstract: 671,130. Sanitary traps. FOLKARD, Ltd.,. J. S. & F., and FOLKARD, F. J. June 5, 1950 [Jan. 24, 1950], No. 1842/50. Class 33 A liquid trap comprising chambers 1, 2 has a pair of pressure-equalizing ducts 5 both having terminal mouths 11, communicating with the junction of the upper end of the chamber 2 and the outlet of the trap, and terminal mouths 7, communicating with interior of the chamber 1 below the liquid level 15, to prevent unsealing of the trap. In the form shown, the ducts 5 extend along the opposite sides of the assembly and a gasket 8, between the body of the trap and the removable bottom cover 6, is shaped to seal off the lower ends of the ducts. A horizontal extension 9 is secured to the flanged end of the outlet chamber 2 and has an outlet end 12 of the same bore as the chambers 1, 2, the remainder of the extension 9 being enlarged in cross-section to form a liquid retention chamber 13 the end of which is inwardly inclined to form a baffle 14 and prevent the outflowing liquid being entirely withdrawn by a surge. A flap valve 16 may be provided to prevent back-pressure.
Patent GB-1163451-A (GB)
Title: Improvements in Electron Multipliers
IPC: H01J43/10
Filed: 1967-01-13
Abstract: 1,163,451. Electron multipliers; photoelectric cells. INTERNATIONAL STANDARD ELECTRIC CORP. 13 Jan., 1967 [17 Jan., 1966], No. 1855/67. Heading H1D. An electron multiplier, single or multi-stage, comprises a dynode in the form of a sheet of secondary-emissive metal secured to a support around its periphery, the sheet being slit along a series of parallel lines to provide along each line in the main area of the sheet a set of slits of similar length separated from each other by unslit portions 16, the metal 12 between adjacent slits being bent out of the plane of the sheet to provide sets of slats similarly inclined (e.g. 35 to 60 degrees, preferably 45 degrees, to the plane of the sheet), the dimensions and relative dispositions of the unslit portions being such as to provide the requisite rigidity. The portion 16 between adjacent rows of slats may be crimped to decrease the inter-slat spacing in each row (Fig. 4b, not shown). The slats in adjacent lines may be longitudinally offset from one another (Fig. 5, not shown) and the dynode may be formed as a sheet of expanded metal (Fig. 8, not shown). The dynode may be made from Be-Cu or Ag-Mg sheet by stamping and forming.
Patent GB-937923-A (GB)
Title: New or improved carburettor arrangement for the engine of a motor vehicle
IPC: F02D9/00
Filed: 1962-01-18
Abstract: 937,923. Change-speed control. DAIMLERBENZ A.G. Jan. 18, 1962 [Jan. 19, 1961], No. 1930/62. Class 80 (2). [Also in Group XXVII] A carburetter arrangement for the engine of a motor vehicle operating with an automatically controlled change-speed gear, particularly an electrically controlled change-speed gear, comprising an additional throttle valve serving for the automatic throttling of the engine during the operation of the clutch or gear-box, is characterized in that an idling device is associated only with this supplementary throttle valve in such a manner that a fuel outlet of the idling device is controlled in accordance with the opening and closing of the additional throttle. A normal throttle valve 24, Fig. 1, is operated by a pedal 26 through linkage 25. Disconnection of the engine clutch causes an additional-throttle valve 19 mounted on a shaft 18 to be closed by an adjustable linkage 10-17 having a spring element 12. Preferably, as shown in Fig. 2, a pair of throttle valves 19 are used. An idling device delivers fuel through bores 36 downstream of the throttle valves 19. When the throttle valves 19 are closed, a valve 29 is opened to allow fuel to pass additionally to bores 31 upstream of the throttle valves 19. Thus, as the latter are opened additional fuel is available to provide a clean transition, irrespective of the position of throttle valve 24, until the throttle valves 19 are fully open and fuel to the bores 31 thereby shut-off. The throttle valves 19 are contained in a housing 22 placed between the carburetter and the engine induction manifold, which housing has bores 28 aligned with corresponding carburetter bores to supply the fuel to the bores 36, and has the valve 29 controlling the flow to the bores 31 via a riser bore 30. The valve 29 comprises a spring-loaded ball valve 34, 35, Fig. 3, which is opened, when the throttle valves 19 are closed, by the camming action of the end wall of a recess 32 in the shaft 18 on a push-rod 33.
Patent GB-344148-A (GB)
Title: Process for the direct photo-mechanical reproduction of objects, drawings, paintingsand the like in their natural colours
IPC: G03F3/04
Filed: 1930-01-20
Abstract: 344,148. Photo-mechanical printing- processes. ALIFREDI, G., 44, Via S. Chiara, Turin, Italy. Jan. 20, 1930, No. 1954. [Classes 97 (i) and 98 (ii).] In the preparation of colour printing plates, the object is photographed through a greenish-yellow coloured screen of pure rock crystal on to a panchromatic plate and a negative prepared therefrom, a number of impressions (depending on the colours in the object) are printed from the negative on to lithographic stones sensitized with benzol, Jew's pitch, lavender oil and aniline oil or chloroform, and colour selection is effected by removal of all parts of each impression other than those corresponding to the colour to be printed from that impression. The removal may be effected with solvents such as oil of turpentine, a mixture of oil of turpentine and benzol, or benzol alone. The prints may be transferred from the stones to zinc plates by means of ordinary transfer paper without ruled screens. Alternatively (1) each print is transferred to a transparent material (glass, celluloid, transparent paper) from which a carbon print is prepared and applied to a sheet of copper the latter being then etched or (2) each print is transferred directly on to copper which is then sprayed with isinglass and etched or (3) the impression stones are photographed and carbon printing effected as in the rotary photogravure method. The rock crystal used in taking the original negative is coloured with a mixture of aurantia naphthol blue and coreulein.
Patent GB-113302-A (GB)
Title: Improvements in or connected with Charging, Packing and like Apparatus of the Helical Extruder Type.
IPC: B65B3/08
Filed: 1917-02-10
Abstract: 113,302. Jackson, J. G., and Jackson, Ltd., J. G. Feb. 10, 1917. Explosives, apparatus for treating.-Relates to extrusion aparatus for filling shells of the type in which a rotary helical blade is arranged axially in a tube, as described for example in Specification 103,209, [Class 94 (i), Packing &c.]. According to the invention, the helical blade B is so formed that the cross-section presents an axial bore C and a surface area greater than that of the bore. The bore extends the whole length of the part of the blade within the tube A and serves as a relief passage if the resistance to extrusion becomes excessive. The helix may be uniform or varving pitch; for instance, the pitch may be gradually increased or decreased towards the delivery end. The blade may be of uniform or varying thickness; for instance, the edges may be bevelled, or, as shown in Fig. 6, the blade may taper from the centre to the periphery. The blade may be formed with corrugations and may also be formed so as to yield axially. The diameter of the bore and the clearance between the blade and the tube may be uniform or may vary. for instance by increasing or decreasing towards the delivery end. The varying clearance may be provided by arranging a conical blade in a cylindrical tube or vice versa. The shaft that carries the blade is arranged outside the tube. In one arrangement a few of the end turns of the blade are passed over and secured to the shaft; or the blade and shaft may be formed integrally. In another arrangement, the blade. is secured to a conical cap E, Fig. 9, on the shaft D; the cap may be replaced by a spider which is in some cases closed at the bottom by a plate.
Patent GB-347186-A (GB)
Title: Improved means of removing deposits from the interior of gas service pipes and the like
IPC: F17D3/16
Filed: 1930-01-21
Abstract: 347,186. Cleaning gas pipes &c. KING, B. J., Linksfield, Westgate-on-Sea. Jan. 21, 1930, No. 2039. [Class 99 (ii).] A gas service pipe &c. 1 is cleaned by connecting it to a union 2 having a tapered inlet 4 through which compressed air or gas from the delivery pipe 3 of a pressure cleanser or other source of supply is passed to produce a suction in the said pipe 1 by injector action.
Patent GB-177297-A (GB)
Title: Improvements in connection with gear for raising and lowering threatrical scenery and the like
IPC: A63J1/02
Filed: 1921-01-14
Abstract: 177,297. Bullivant's Engineering & Contracting Co., Ltd., and Bullivant, T. Jan. 14, 1921. Theatrical apparatus.-Relates to apparatus for raising and lowering theatrical scenery of the type in which the scene A is connected by ropes C to a, balance weight g'. According to the invention the movement of the weight g<1> is limited by spring stops 1, 2, adjustably fixed to an upright 3..
Patent GB-1120271-A (GB)
Title: Washing off dyeings or prints on textiles
Inventor: BATTY JOHN WOOLLEY
IPC: D06P5/06
Filed: 1965-01-18
Abstract: Dyeings or prints of anionic dyes on textiles are washed off in a process including the step of treatment with an aqueous solution of a quaternary ammonium salt which contains at least two oxyalkylene groups.  The quaternary salts may have the formula:- <FORM:1120271/D1-D2/1> wherein R is aliphatic, preferably an alkyl or alkenyl of 10-22 C, R1 is aliphatic, cycloaliphatic or araliphatic, preferably methyl or benzyl, n is 2, 3 or 4, x and y are positive integers, preferably x+y=2-6 and Z- is an anion.  The anionic dyes may be acid direct or reactive dyes.  The textiles may be of natural or regenerated cellulose or synthetic polyamides. Examples are given.
Patent GB-1084415-A (GB)
Title: Improvements in or relating to storage devices
IPC: H04M15/06
Filed: 1965-01-19
Abstract: 1,084,415. Automatic exchange systems. SIEMENS A.G. Jan. 19, 1965 [Jan. 20, 1964], No. 2255/65. Heading H4K. [Also in Division G4] A data storage system applicable to the metering of telephone calls comprises a magnetic drum having a plurality of storage tracks and an additional buffer track for read-out purposes. As described, a storage drum T has twenty data storage tracks arranged in two groups Sp 1-19 and Sp 2-20, each group having an associated transfer track USp1, USp2. In operation, a track of the first group is read out and unity is added at AD to the metering total of any subscriber whose line S1-Sn is marked, the resulting data being returned to the transfer track USpl. Simultaneously data from transfer track USp2 is read back to the track of the second group last read out. After each revolution of the drum, switches SW1, SW2 are changed over, scanning of the subscribers' lines S1-Sn proceeding continuously. A read-out for printing purposes may be effected without interrupting the scanning by employing an output buffer track ASp. In a first type of read-out operation, a complete track is read out and returned via the adder AD to the buffer track ASp instead of to the transfer track USp1 or USp2. The contents of the buffer track are then read out via a binary-to-decimal converter U to a printer D, the contents of the transfer track being read back to the data track last scanned to effect recording of zeros therein. In a second type of read-out operation, a particular subscriber's total may be extracted without resetting by setting up the address of the required subscriber in the system control unit SE and causing the required total to be read out to the buffer track ASp as well as to a transfer track. The contents of the buffer track may then be read out for application to the printer D.