baber/WOPTO huggingface dataset:
Patent GB-1143814-A (GB)
IPC: H01H71/44
Filed: 1966-05-26
Abstract: 1,143,814. Automatic circuit breakers. UNELEC. 26 May, 1966 [28 May, 1965], No. 23753/66. Heading H1N. A tripping electromagnet 1 of an overload circuit breaker acts when energized to initiate movement of a time delay mechanism 12 which at the end of its travel trips a latch 7 but is prevented from tripping the latch if the electromagnet is de-energized, thus preventing unnecessary tripping if the fault is cleared first by another breaker. The flywheel 12 is normally prevented from moving by a stop 16 which determines its rest position. Energization of magnet 1 moves an armature 3 to stress a spring 10 and through an adjustable screw 17 to withdraw the stop 16. The movement of armature 3 withdraws a stop 6 from the latch 7. The flywheel 12 is rotated by spring 10 until a projection 14 strikes latch 7 to release it. If during the rotation the magnet 1 is de-energized, the stop 6 locks the latch and although the flywheel may continue to rotate the latch cannot be released. In a practical embodiment (Fig. 3, not shown) involving some rearrangement of the essential parts a current carrying bimetal (137) is also arranged to act upon the latch (118) and the locking means (T) is inserted in front of an arm B of the latch to prevent pin (117) striking it. In a three phase arrangement (Figs. 4-6, not shown) three electromagnetic and four thermal tripping devices act on a common shaft (125).
Patent GB-506826-A (GB)
Title: Improvements in and relating to the veneering of curved articles
IPC: B27D1/08
Filed: 1937-08-31
Abstract: 506,826. Veneering. VALENTIN, H. Aug. 31, 1937, No. 23831. Void. Convention date, Aug. 31, 1936. [Class 145 (ii)] A curved work-piece 13 covered with a veneer is placed on a support 15 carried on a plate 11 and is covered by a water-proof flexible sheet 17 the edges of which are clamped to the plate by a frame (not shown) secured to the plate by pivoted bolts. The air is exhausted from the space thus enclosed through a connection 21, the atmospheric pressure acting on the work through the flexible sheet. The whole assembly is then placed in a pressure-chamber 2, the plate 11 being provided with rollers 12 which engage in guides 10 in the chamber, which is then closed and filled with hot-water under pressure. The apparatus shown comprises two pressure chambers 1, 2 arranged in a frame having annular members 4 supported on rollers 5, so that it may be rotated to bring either of the chambers to the lower position. A motordriven pump 34 pumps the water from the upper chamber to the lower, by way of a change-over valve 26 connected to the two chambers and rotating with them. The treated work may then be removed from the upper chamber, after which it is re-filled with fresh work and rotated to the lower position, so that the two chambers-are in use alternately. Electric or other heaters 24 are arranged in the chambers. More than two chambers may be employed.
Patent GB-691799-A (GB)
Title: Improved apparatus for discharging water from screw-driven ships
IPC: B63B13/00
Filed: 1950-09-29
Abstract: 691,799. Removing leakage. WAREN, L. A. O. Sept. 24, 1951. [Sept. 29, 1950] No. 23876/50. Class 113 (i). In an apparatus for withdrawing water from out of a ship comprising a pipe B extending from a position within the ship to a position outside immediately in front of the ship's screw propeller G so that by opening a valve H tc admit water into the pipe the action of the screw propeller will rapidly draw water out of the ship, the outlet end of the pipe is provided with a fishtail delivery nozzle E having a slit-like orifice disposed immediately in front of the propeller screw.
Patent GB-1454890-A (GB)
Title: Process for the dyeing of textile materials
IPC: D06P1/653
Filed: 1975-06-03
Abstract: 1454890 Dyeing pretreatment OPI CRYOCHIMIE A DECLERCA and P DECLERCA 3 June 1975 [6 June 1974] 23876/75 Heading D1B Textile material formed from natural or synthetic polyamides, polyesters, polyacrylics or polymeric chlorinated hydrocarbons is subjected to a treatment with liquid ammonia before dyeing and is then dyed while still impregnated with ammonia. The liquid ammonia may contain an additive and the textile material may be partially dried or rinsed between the liquid ammonia treatment and the dyeing process.
Patent GB-883096-A (GB)
Title: Improvements in or relating to hall generators
Inventor: MAAZ KARL
IPC: G01R33/07
Filed: 1958-07-24
Abstract: 883,096. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A. G. July 24, 1958. No. 23902/58. Class 37. The magnetic effect on the wafer produced by the control current in a Hall generator is eliminated either by an additional compensating winding or by a split feed arrangement. Fig. 2 shows a Hall modulator having control current electrodes 5 and 6 and Hall electrodes 7 and 8. A compensating loop 9 is connected via a potentiometer 10 to the control current supply whereby the magnetic field on wafer 4 due to the control current path may be compensated. In Fig. 3 the control current is fed to electrode 5 by two leads 15 in parallel, and potentiometer 13 provides for adjustment so that the magnetic effects of the two leads compensate each other.
Patent GB-1073828-A (GB)
Title: O-desacetyl-o-carbamoyl-7-acylamino-cephalosporanic acids
IPC: C07D501/04
Filed: 1965-06-04
Abstract: O - Desacetyl - O - carbamoyl - 7 - acylamino-cephalosporanic acids have the formula <FORM:1073828/C2/1> wherein the acyl is a carboxylic acid radical whose CO group is bonded to a carbon atom and R1 is acyl or an unsubstituted or substituted hydrocarbon radical.  They are prepared by reacting O - desacetyl - 7 - aminocephahlosporanic acid, whose 7-amino group is substituted by (a) a carboxylic acid radical whose Co group is bonded to a carbon atom or (b) an eliminable radical which is not acyl, with an isocyanic acid ester of formula R1-N = C = O wherein R1 has the meaning above. Radicals (b) are t-butyloxycarbonyl, trityl and carbobenzoxy and may be substituted with nitrohalogen or alkoxy.  After the main reaction, the eliminable radical is removed by hydrolysis or hydrogenolysis and the resulting compound with a free 7-amino group is acylated.  The compounds may be converted to therapeutically active salts e.g. alkali metal, alkaline earth metal and organic base salts.  They may be used medicinally, as additive to animal feed, in preservation of foodstuffs and as a disinfectant.  A pharmaceutical composition for oral parenteral or topical use comprises a carrier and an O - desacetyl - O - carbamoyl - 7 - acylamino cephalosporanic acid of Formula I, or a salt thereof.
Patent GB-518101-A (GB)
Title: Improvements in parachutes
IPC: B64D17/36
Filed: 1938-08-15
Abstract: 518,101. Cleats. FINLAYSON. D., GREENWOOD, E. L. and WYLDE, J. R. Aug. 15, 1938. No, 24044. [Class 109] [Also in Group XXXIII) The shroud lines of a parachute are looped through rings and their ends are connected to members which slide with friction along the lengths of the lines to absorb shock as the parachute opens. The friction device in one form comprises a block 1 having a curved passage 4 through which the lines pass, the end of the loop being secured to the block. Alternatively the friction device may be a short bent tube. In another form, Fig. 5, all the lines are anchored to a bulbous member 20 by being tied about a ball 29, the member 20 having two flanges 21 each provided with a circumferential series of holes through which the main lengths of the lines pass. According to the Provisional Specification perforated plates capable of producing the required kink in the cord may be used.
Patent GB-811700-A (GB)
Title: Process for the production of heterocyclic carboxylic acids of the pyrazolidine series as well as the esters and salts thereof
Filed: 1957-07-30
Abstract: The invention comprises 3 : 5-di-oxo-pyrazolidinyl-4-acetic acid derivatives of the formula <FORM:0811700/IV (b)/1> wherein Ar1 and Ar2 are phenyl radicals optionally substituted by halogen atoms, e.g. Cl or Br, or alkyl or alkoxy groups of 1-4 carbon atoms, R1 is hydrogen or an alkyl, cycloalkyl, aryl or aralkyl radical, wherein the aryl rings may optionally carry halogen or alkyl substituents of 1-4 carbon atoms, and R2 is hydrogen or an alkyl radical, and their monobasic or dibasic salts with inorganic or organic bases; it comprises also the preparation of these compounds by reacting, preferably in the presence of an alkaline condensing agent, a reactive functional derivative of an ethane tricarboxylic acid of the formula R1CH(COOR12).CH(COOH)2, wherein R21 represents an alkyl radical, with a diaryl hydrazine of the formula Ar1-N(Z)-NH-Ar2, wherein Z is hydrogen or an acyl radical which can be easily split off, and then if necessary hydrolysing the resulting functional derivative of a 1 : 2-diaryl-3 : 5-dioxo-4-acetic acid to the free acid, or converting an ester so obtained into a monobasic salt of its enol form or converting the free acid into its mono- or dibasic salt with an organic or inorganic base.  As the reactive functional derivative of an ethanetricarboxylic acid there may also be used a derivative of the formula R1CH(COY).CH (COY)2, wherein Y is chlorine, bromine or an alkoxy or acyloxy group.  A further process for preparing the pyrazolidine-acetic acid derivatives of the invention comprises reacting a metal compound of a 1 : 2-diaryl-3 : 5-dioxopyrazolidine with an a -halogen acetic acid derivative of the formula Hal-CH(R1)-CO.  OX, wherein X is an alkyl group, and if desired converting the ester into the free acid or a salt thereof. In an example hydrazobenzene is treated with (a -carbethoxy-n-propyl) malonic acid diethyl ester in the presence of sodium ethoxide to give 1 : 2-diphenyl-3 : 5-dioxo-4-(a  - carbethoxy - n - propyl) pyrazolidine which is hydrolysed to 1 : 2-diphenyl-3 : 5-dioxo-4-(a -carboxy - n - propyl - pyrazolidine; by similar methods pyrazolidine-diones according to the invention are prepared in which Ar1 and Ar2 are phenyl groups, R2 is ethyl and R3 is hydrogen, methyl, n-propyl, isopropyl, n-butyl, cyclopentyl, phenyl, p-methylphenyl, p-chlorophenyl, benzyl, p-methylbenzyl, and p-chlorobenzyl, and the pyrazolidine-diones wherein R2 is ethyl, R3 is ethyl and Ar, and Ar2 are both p - methylphenyl, p - chlorophenyl and p-methoxyphenyl groups; the above esters are converted into the free acids; the methyl esters corresponding to the first two of the above compounds are also specified.
Patent GB-874187-A (GB)
Title: Modified acrolein-pentaerythritol resins
IPC: C08G4/00
Filed: 1958-07-28
Abstract: Unsaturated acetals of formula: <FORM:0874187/IV (a)/1> where R1 is H, Cl or CH3 and R2 is H or CH3, are condensed with a polyhydric alcohol at 90 DEG -170 DEG C. in the presence of at least ,05% by weight of a sulphate ester of an alcohol.  Suitable sulphates are dimethyl, diethyl, di-iso-propyl, di-sec.-butyl, dioctyl, didodecyl, dioctadecyl, and pentaerythritol tetra-sulphate.  The preferred acetal is 3, 9-divinylspirobi (m-dioxane) [diallylidene-pentaerythritol].  Suitable polyhydric alcohols are trimethylol propane, trimethylol ethane, sorbitol, glycerine, mannitol, dulcitol, pentaerythritol and 2, 4-dihydroxy-3, 1-hydroxy methyl pentane.  The reaction mixture may be cast and cured in moulds.  In Example 9 kaolin is added as a filler to the reaction mixture.
Patent GB-996589-A (GB)
Title: Method of doping
IPC: C30B13/10
Filed: 1961-07-04
Abstract: A rod or tube of semi-conductor material is doped by applying a doping agent, which may be in admixture with semi-conductor material, along the length to be doped and then zone-melting.  The doping agent may be in the form of a filament, rod, or tube, which is maintained in contact with the semi-conductor body by clamping or welding, or in the form of a coating formed by sublimation. Germanium may be doped with aluminium, boron, or phosphorus; silicon may be doped with boron or phosphorus; and gallium arsenide may be doped with zinc. Zone-melting may be effected with or without a crucible.
Patent GB-668208-A (GB)
Title: Improvements to electro servo systems
IPC: H02P7/26
Filed: 1949-09-21
Abstract: 668,208. Automatic speed control systems. SOC. FRANCAISE RADIO-ELECTRIQUE. Sept. 21, 1949 [Nov. 3, 1948], No. 24276/49. Class 38 (iv). In an automatic speed control system wherein error voltage proportional to motor speed variations operates the motor through a gridcontrolled gas discharge rectifier tube, hunting is substantially eliminated by adding to the error voltage a rectangular waveform voltage of a frequency at most equal to the power supply frequency and preferably a sub-multiple thereof which may be varied, the combined control voltage producing control pulses on the tube grid which are phase-shifted according to the control voltage amplitude. As shown, Fig. 2, for controlling the speed of a motor S supplied from a three-phase supply XYZ, through a thyratron three-phase rectifier unit R, the output frequency of a tachogenerator 12 driven by the motor S is compared with a reference frequency corresponding to the desired motor speed in a discriminator K tuned to the reference frequency to produce the error voltage at a. Control units M, D, G are provided for each phase of the rectifier R. The error signal a is fed to the control grid of a valve L in each of the three units D, only one of which (for phase X) is shown. Each unit D is fed at F from the corresponding phase of the power supply and in known manner produces across the points d, q an A.C. output, the phase of which is shifted relative to the input at F in dependence on the magnitude and sense of the error voltage. This sinusoidal output Vr, Fig. 3, from the phase shifter D is clipped in a valve 11 in the unit G to produce rectangular signals which are differentiated by the damped inductance in the plate circuit. The positive impulses P1, P2, P3 of the output from unit G are effective, and, in conjunction with the corresponding outputs of the units G associated with the other two phases Y, Z, operate the rectifier unit R in known manner to control the motor speed. According to the invention each phase shifter unit D is also fed from a multivibrator unit M which in known manner, produces from the mains supply at F a rectangular voltage wave E2, Fig. 3, of one half or other submultiple of the mains frequency. An adjustable portion of this wave is applied by a potentiometer 8 to the screen grid of the valve L in the phase shifter D to produce a periodic phase-shift of adjustable magnitude of the controlling impulses applied to the rectifier unit R, which is superposed on the phase shift produced by the error voltage. Alternatively, the rectangular wave from the unit M may be applied to the control grid of L or it could be applied to a separate phase shifter in cascade with D. The regular " anti-hunt " fluctuation thus applied to the rectifier unit R is arranged to oscillate regularly between two distinct values one markedly greater and the other less than that of the maximum error voltage.
Patent GB-243581-A (GB)
Abstract: 243,581. Pass, C. W., and Ferry, E. April 4, 1925. Mud-guards rotating with wheels.-Rubber tyres are formed or fitted at one or both sides with splash guards a of curved tapering section, the outer edge of the guard being disposed in a plane passing through its base and tangential to the side face of the tyre. The guards may be formed integral with the tyre, or may be secured by bolts d, or setscrews. The edge of the guard may be formed with a bead c, and may be reinforced by a metal ring.
Patent GB-880867-A (GB)
Title: Dispensing device for wrapping material
Inventor: SMITH GEOFFREY
IPC: B65H35/00
Filed: 1958-07-29
Abstract: 880,867. Roll-holders; wrapping-apparatus. BUSH & SONS Ltd., F. Oct. 29, 1959 [July 29, 1958], No. 24385/58. Classes 18 and 94(1). A dispensing device for wrapping paper or like material comprises a cutter bar 10 along the line of which paper is progressively severed and a presser bar 9 over which the paper is passed and by which it is laid on the article to be wrapped prior to severance. Wrapping paper from a reel 5 passes beneath a guide bar 14 pivotally connected to supports 4 by arms 15 and which maintains tension in the paper. The paper then passes between two freely mounted guide rollers 13, over the cutter bar 10 and over the presser bar 9. The cutter 17 comprises a pair of cutter elements fitted between the side faces of a doubled-over piece of metal and which slide in a slot in the bar 10 to sever the paper passing thereover. In use the operator grips the paper and pulls it forward so that a portion rests on the table 3 and the article to be wrapped is placed thereon. The free end of the paper is folded over the article. A freely movable frame 8, to which the bar 9 is connected, is pulled forward by a handle 11 so that a further length of paper is withdrawn from the reel 5 and is folded over the rear face of the article. The bar 9 is brought down so that the paper overlies the previously folded over end. The cutter 17 is slid from one end of the bar 10 to the other to sever the paper and the wrapping is completed. Adhesive tape or string may be carried on a tray 20.
Patent GB-419475-A (GB)
Title: Improvements in or relating to bogie attachments on six-wheeled motor vehicles
IPC: B60G5/053
Filed: 1933-09-04
Abstract: 419,475. Torque - rods. WHITTLE, R. W., Fern Acre, Crofts Bank Road, Urmston, Lancashire, TWEMLOW, E., Stramongate, and FODENS, Ltd., Elworth Works, both in Sandbach, Cheshire. Sept. 4, 1933, No. 24434. [Class 79 (iv).] In six-wheeled vehicles having bogies with two axles and longitudinal springs, carried by a central fitment, bearing upon the axle boxes in recesses thereon, the recesses are wider than the ends of the spring and the bearing surfaces are rounded to allow relative movement laterally and radially. Centre blocks 9 are rotatably mounted on a shaft 10 carried by brackets from the chassis frame 12 and have mounted thereon the springs 4 the ends of which slide in raised loops 5 on the axle boxes 3. The loops 5 have curved upper and lower surfaces and side clearance as shown in Figs. 1 and 3 to permit relative angular movement. The axle boxes 3 are also provided with integral arms 18, 20 between which and the centre blocks 9 torque rods 15, 22 are connected one or both ends of which are in screw threaded connection with sleeves whereby angular movement is permitted.
Patent GB-633911-A (GB)
Title: Improvements relating to the refining of kerosene
IPC: C10G21/10
Filed: 1947-09-10
Abstract: Kerosene is refined by treatment first with concentrated sulphuric acid to produce a "sweetened" kerosene and then with liquid sulphur dioxide.  The sulphuric acid treatment is preferably carried out at a temperature of 90-110 DEG  F.  Maximum reduction in char value of the kerosene occurs when, in the extraction with sulphur dioxide, a high sulphur dioxide/kerosene ratio, i.e. 50-100 per cent by volume, and a low temperature, i.e. -30 DEG  to -10 DEG  F., are used; under less severe extraction conditions, for example a sulphur dioxide/kerosene ratio of about 20 per cent by volume and a temperature of about 10 DEG  F., a greater throughput of kerosene results but there is a lower decrease in char value.
Patent GB-173561-A (GB)
Title: Improvements in the manufacture of cloth tags to be affixed to commodities or their containers
IPC: G09F3/02
Filed: 1920-08-30
Abstract: 173,561. Kamijo, H. Aug. 30, 1920. Fringes, fabrics with; cutting-out, weaving to facilitate.-Cloth tags a, Fig. 7, for affixing to commodities or to their containers, are made by weaving a fabric having parts B<1>, Fig. 4, wherein the weft threads are omitted, arranged alternately with parts A<1> containing weft threads, and then cutting the fabric along the parts shown in chain lines, and collecting the projecting warp threads b, Figs. 5, 6, and 7, to form binding-strings c, certain portions of the fabric and of the warp threads having, if necessary, been previously cut off, as shown in Fig. 6. A method of making the tags from a fabric having the warp threads (instead of weft threads) omitted in parts is described.
Patent GB-597921-A (GB)
Title: Improvements relating to women's skirts
IPC: A41D1/14
Filed: 1945-09-26
Abstract: 597,921. Skirts. CLASSIC MANUFACTURING CO. (WELL STREET), Ltd., and SHEINMAN, J. Sept. 26, 1945, No. 24986. [Class 141] A skirt has a placket opening with a triangular-shaped underlap having its inner edge inclined upwards at an angle from the lower edge of the placket, means for fastening the underlap to the overlap being provided adjacent the upper end of the inclined edge and on the inside of the overlap, to prevent the edges of the placket from bulging apart. The underlap 2 which may be formed from a separate piece of material has the inclined edge cut on the bias to exert a pull. The end of the waistband 5 which forms a continuation of the underlap 2 has a buttonhole 10 for engagement with a button 11 on the inside of the skirtband, the other end of the waistband 5 having a hook 6 and buttonhole 7 for engagement with the eye 8 and buttonhole 9. ' The outer edge 1 of the placket is fastened to the underlap 2 by press stud components 3 and 4.
Patent GB-458324-A (GB)
Title: Improvements in bearing metal alloys
IPC: C22C20/00
Filed: 1935-09-10
Abstract: Bearing metal alloys consisting mainly of cadmium contain 0,05-0,45 per cent of silver, with or without copper, or contain copper magnesium, and silver, preferably 1-2 per cent of copper, 0,01-0,15 per cent of magnesium, and 0,05-0,45 per cent of silver.  An example contains 1,45 per cent of copper, 0,1 per cent of magnesium, and 0,25 per cent of silver.
Patent GB-1500320-A (GB)
Title: Gas sensor
IPC: G01N27/12
Filed: 1975-06-12
Abstract: 1500320 Semi-conductor gas sensors HITACHI HEATING APPLIANCES CO Ltd 12 June 1975 [14 June 1974] 25241/75 Heading G1N Reducing gases are measured by monitoring the resistance of a spinel ferrite exposed to the gas. The ferrite may have a composition represented by the general formula AFe 2 O 4  in which A is at least one of Mg, Mn, Fe, Co, Ni, Cu, Zn and Pb. Alternatively the composition may be Li 0À5 Fe 2À5 O 4  or have a composition deviating from these stoichiometric ratios, e.g. Mg 1À3 Fe 1À7 O 4  and MgFe 1À5 Al 0À5 O 4 . Materials to form the required sensor are mixed, pre-fired, press-moulded and sintered in an oxygen containing atmosphere and at an appropriate temperature. The sintered body is sliced to form a thin plate and gold wire electrodes attached to the end portions. Alternatively the sintered body may be pulverized again and coated together with a binder on a stem having an appropriate form. In operation the ferrite is maintained at a temperature of 450 to 550C by means of a heater or using coil electrodes and the resistance between the electrodes measured. The sensor may be used to detect propane, methane, butane, ethylene, hydrocarbon derivatives, alcohols, CO, H 2 , carboxylic acids and amines.