baber/WOPTO huggingface dataset:
Patent GB-868307-A (GB)
Title: Improvements relating to gas or electric cooker hotplates
Inventor: OATLEY ARTHUR FREDERICK
IPC: F24C15/12
Filed: 1957-12-17
Abstract: 868,307. Covers; gas and electric hot plates. OATLEY TECHNICAL DEVELOPMENTS Ltd. March 17, 1959 [Dec. 17, 1957; Feb. 27, 1958], Nos. 39210/57 and 6337/58. Classes 39(3) and 126. A gas or electrically heated cooker hotplate has a hinged cover movable from a closed horizontal position, in which the top of the cover forms a working surface, to a substantially vertical open position and protective means actuated by the cover for preventing the connection of the burners or heating elements to the gas or electricity supply while the cover is in the closed position. As shown in Fig. 2 applied to a gas heated hotplate, an interlocking device between the cover 4 and the or each gas tap 9 comprises a shaft 14 pivoted at one end to a rocker 17 pivotally connected to a bar 8 rigid with the cover 4 and having at the other end a key 20. A disc 12 mounted on the shank 11 of the gas tap has a slot, (not shown) in its periphery with which the key 20 can engage when the cover is closed and the tap is turned off. If an attempt is made to close the cover when the tap is on the key is obstructed by the disc 12. Alternative or additional protective means comprises a rocker 17<SP>1</SP>, Fig. 4, which on closing of the cover 4 closes a rotary valve 22. Other forms of rotating valve are described. If the sole protective means is a valve such as the valve 22 there should preferably be automatic ignition of the burners so that if the cover is closed with a tap left on no gas will flow to the burner and if the cover is then raised thus opening the valve 22, the gas will be ignited. The automatic ignition is preferably electric and comprises a continuously glowing filament or one which is actuated by a switch 23, Fig. 2, the contacts of which are closed, on opening of the cover 4, by engagement of a lug 25 on the near edge of the cover with a plunger 24. In an electric hotplate, the isolating switch may be actuated directly by the opening and closing of the cover or if, for example, the switch is of the quick make and break type, movement of the cover merely urges the switch to move towards the on and off positions but leaves the switch action free to complete the movement. Specification 867,237 is referred to.
Patent GB-882867-A (GB)
Title: Improvements relating to inductive windings
Inventor: HALL GEOFFREY
IPC: H01F27/28
Filed: 1958-12-05
Abstract: 882,867. Transformers. FERRANTI Ltd. Dec. 3, 1959 [Dec. 5, 1958], No. 39281/58. Class 38 (2). A high voltage winding is formed with an axial cooling duct by arranging it in one or more groups Gp<SP>1</SP> to Gp10 each comprising a cylindrical coil such as 6 surrounded by spacedapart disc coils such as 7, 8, 9, 10. The coils are connected in series as shown and the spacers separating the disc coils from each other are keyed to the spacers separating the disc coils from the cylindrical coils. Lead-in coils 4, 5 may be provided. According to the Provisional Specification the disc coils may be wound as described in Specification 863,561.
Patent GB-1102317-A (GB)
Title: Process for the continuous optical brightening of incompletely acylated cellulose fibre material
IPC: D06P1/92
Filed: 1966-09-02
Abstract: Incompletely acylated cellulose fibre material e.g cellulose-2 1/2 -acetate in the form of flocks, slubbing, yarn or fabric, is optically brightened by impregnating it with a solution of at least one optical brightener in a water soluble organic solvent, optionally in admixture with a water insoluble organic solvent, the proportion of water soluble organic solvent being at least 1% by weight calculated on the total mixture of solvents and, without any intermediate rinsing step, removing the solvent from the solution by evaporation.  The water soluble organic solvent may be methanol, ethanol, butanol, n- or iso-propanol, isoamyl alcohol, ethylene glycol monomethyl or monoethyl ether, tetrahydrofurfuryl alcohol, cyclohexanol, benzyl alcohol, ethylene glycol, 1,2-propylene glycol, acetone, methylethyl ketone, cyclohexanone, dioxan, diethyl ether, formamide dimethyl formamide, dimethyl sulphoxide or pyridine, and the water insoluble organic solvent may be toluene, xylene, chlorobenzene, carbon tetrachloride, tri- or tetra-chloroethylene, tetrachloroethane or dibromoethylene.  The optical brightener may be a stilbene compound, e.g. a 4, 41-bis-triazinylamino stilbene sulphonic acid or stilbyl naphthotriazole or acenaphthenotriazole, a coumarin, e.g. a 3-aryl-7-subst. aminocoumarin or benzocoumarin derivative, a pyrazine, e.g. a 3,5-dialkylaminopyrazine-2, 6-dicarboxylic acid -alkyl-or-aryl-amide, a pyrazoline, e.g. a 1,3-diphenyl- or 1, 3, 5-triphenylpyrazoline, an oxazine compound, e.g. a 3,31-dialkyl-oxacyanine or 3, 31, 5, 51-tetraalkyl-oxacyanine or acid salt thereof, a dibenzoxazolyl or dibenzimidazolyl compound, e.g. dibenz-oxazolyl- or dibenzimidazolylethylene, -furan orthiophene or a naphthalic acid imide, numerous examples of suitable brighteners being given.  The brightening liquor which may contain 0.01-10% by weight of one or more of the brighteners may be applied to the material by printing, spraying or padding in the foulard surplus liquid being removed by squeezing and the main part of the solvent being removed from the material by evaporation at 30 DEG  - 100 DEG C by contact heat, high frequency alternating current, infra-red irradiation or a steam of hot air.
Patent GB-873488-A (GB)
Title: A method for counteracting the formation of precipitates and discolourations and forsequestering iron in an aqueous medium containing iron
IPC: C02F5/08
Filed: 1957-12-19
Abstract: Aqueous media containing iron are treated with a sequestering agent consisting of nitrilotriacetic acid, or a salt thereof, and at least one salt of a condensed phosphoric acid.  Salts mentioned include those of organic bases, hydroxylamine and hydrozine.  The salt may be partially or completely neutralized and may be formed in situ in the aqueous medium by adding the corresponding acid to the medium and adding a base.  In examples, nitrilo-triacetic acid, and either sodium tripolyphosphate or sodium hexametaphosphate, are added to hard iron-containing water and the pH of the solution is adjusted to 10 with sodium hydroxide.  The use of the sequestering agent counteracts the formation of discolorations and precipitates, especially when the aqueous medium is employed in textile-finishing processes such as bleaching and dyeing.
Patent GB-925115-A (GB)
Title: Stabilization of photographic silver halide emulsions
Inventor: DERSCH FRITZ
IPC: C07D333/36
Filed: 1961-11-03
Abstract: N-Acyl DL-homocysteine thiolactones of the general formula:-<FORM:0925115/IV(a)/1> wherein R is an alkyl group of 1-3 carbon atoms, are prepared by treating DL-homocysteine thiolactone hydro-iodide with silver acetate and reacting the free base formed with acetic, propionic or butyric anhydride.  U.S.A. Specification 1,970,578 is referred to.
Patent GB-873436-A (GB)
Title: Improvements in and relating to apparatus for the control of grid-controlled electric discharge devices
Inventor: SMART DAVID LORIMER
IPC: H02M1/04
Filed: 1957-12-20
Abstract: 873,436. Converting; changing wave shape. ENGLISH ELECTRIC CO. Ltd. Dec. 20, 1957, No. 39716/57. Addition to 774,400. Class 38 (2). In a grid control circuit for mercury arc converters of the kind forming the subject of the parent Specification by which are derived a steady voltage V b  and a series of steep-fronted voltage pulses V R  the phase of whose front is varied by control of the saturation of a choke 16 in series with a resistor R L , the pulses V R  are derived by the resistor-choke combination R L , 16 from an alternating voltage of fundamental frequency on which is superimposed a second harmonic component to give a waveform as shown in Fig. 8. The pulse front can be varied over 180 degrees with only a small change in amplitude. The alternating current is derived from the appropriate phase terminal of one of the separate three-phase secondary windings 12a, 12b, 12c of a mains transformer and the star point of interphase transformer 13 connected to the centre points of the secondary windings. Steady voltage V b  is derived from rectifiers 14 connected to the end terminals of secondary windings 12a, 12b, 12c. The range of possible pulse variation may be extended to 210 degrees by the presence of transformer leakage reactance or the connection of additional reactors in series with the transformer windings. Five six-phase converters may be operated in parallel.
Patent GB-397710-A (GB)
Abstract: 397,710. Cinder-notch stoppers. BROSIUS, E. E.. 6550, Beacon Street, Pittsburg, U.S.A. Nov. 4, 1932, No. 31141. Convention date, Feb. 10. [Class 51 (ii).] A stopper 15 for plugging the slag-hole 6 in a furnace wall 2 is carried on the end of a rod 14 adapted, during the withdrawal of the stopper, to be moved horizontally outwards along a trackway 8 which is then swung upwardly to carry the stopper into the inoperative position shown in Fig. 3. The trackway 8 is pivoted at 16 to the lower ends of a pair of vertical channel members 7 secured to the furnace wall and carrying, at their upper ends, a bracket 27 which supports a motor 28. The rod 14 is adjustably mounted in a trolley 10 having wheels 11 engaging the track members 8, the latter being maintained in the horizontal position by toggle links 18, 20 pivoted to each other at 21 and to the members 7, 8 at 19, 22 respectively. Closing of the links 18, 20 is prevented, until the trolley 10 has reached the outer limit of its travel, by the engagement of a projection 26 with a plate 25 mounted on the trolley. The motor 28 drives, through worm gearing 29, 30, a shaft 31 carrying a pulley 32 and having a screwed portion 33, Fig. 4, which engages with internal threads 34 on a second pulley 35. Cables 36, 38, extending from the ends of the trolley 10 around guide pulleys 37, 39, are wound round and secured to the respective pulleys 32, 35. At the commencement of the operation of withdrawing the stopper, the pulleys 32, 35 are in contact and, on starting the motor 28, both pulleys are rotated so that the cables 36, 38 are respectively wound in and paid out to move the trolley 10 outwardly along the track 8. At the end of this horizontal movement, the rotation of the shaft 31 continues to wind in the cable 36 to raise the trackway 8, the pulley 35, during this period, merely travelling axially along the shaft and paying out only sufficient of the cable 38 to compensate for the change in angular position between the members 7, 8.
Patent GB-914098-A (GB)
Title: Improvements in or relating to an implement for the lateral displacement of crop lying on the ground
IPC: A01D78/00
Filed: 1959-05-22
Abstract: 914,098. Haymaking machines. VAN DER LELY N.V., C. May 22, 1959 [June 12, 1958], No. 39833/61. Divided out of 914,096. Class 6(3). In a rake-wheel type of haymaking machine which can be used for side-delivery or tedding, the frame comprises two parallel beams 50, 61 interconnected by a series of auxiliary beams 56 to form a parallelogram linkwork, the rakewheels 51-54 being mounted on parts of the auxiliary beams extending outside of the area of the parallelogram and entirely upon the side thereof, the parallelogram being deformable so that the rake-wheels can be brought from the side-delivery position to the tedding position (shown dotted for the rake-wheel 51). The frame is mounted on three wheels 67, 68, 69 of which the foremost 67, is fixed to a pivoted drawbar 70, the second, 68, is a caster, and the third, 69, is a direction-control wheel which can be swivelled about a vertical axis and set by a handle 71 and sector 73. Once set, the wheel 69 moves with the auxiliary beam 56, on which it is mounted, into the tedding position, without further alteration.
Patent GB-1518805-A (GB)
Title: Device for mounting a drill in a dental rotor
IPC: B23B31/117
Filed: 1975-09-29
Abstract: 1518805 Dental drill holders D MOSIMANN 29 Sept 1975 [30 Sept 1974] 39841/75 Heading A5R [Also in Division B3] A device for mounting a drill in a dental rotor 20, comprises a drive sleeve 12 for mounting in, or forming part of, the rotor, a helical spring arranged in said sleeve and adapted to receive the drill therein, a stop element 13 threaded onto the sleeve and retaining the spring within the sleeve by engagement with one end of the spring, the engagement between said one end of the spring and said stop element being such as to allow relative rotation to take place therebetween, and a drive element 9<SP>1</SP>, drivingly coupled with the sleeve and with the opposite end of the spring by means of co-operating cut-outs (8), (10) Fig. 3, (not shown), so that when the drill is located in the spring, the drill is rotatable in one direction only via the drive sleeve, the drive element and the spring. The allowed direction of rotation of the drill depends on the hand of the spring. The drive element is longitudinally slidable relative to the drive sleeve by means of a notch 17 in the outer wall of said element, which notch is drivingly engaged with a cotter pin 18 passing through the wall of sleeve 12. In order to allow removal of the drill from the spring, a member 15 is pushed in against the force of a spring 16 to contact element 9<SP>1</SP> and push it inwardly of the sleeve, the spring holding the drill then being compressed and expanded radially to allow release of the drill. In a modification, instead of providing a member 15 and having a longitudinally slidable drive element, the drive element has a bore (11) Fig. 4, (not shown), therethrough for passage of a tool for engagement with the head of the drill to release it from engagement with the spring.
Patent GB-1272503-A (GB)
Title: Apparatus for the bending of wire
Inventor: HACK KARL
IPC: B21F1/06
Filed: 1970-08-19
Abstract: 1,272,503. Angular bending. K. HACK. 19 Aug., 1970 [19 Aug., 1969], No. 39869/70. Heading B3E. A device for bending a wire to form a hook comprises a rotatable bending tool 23 attached to a spindle 13, an axially movable adjusting piston 2 which is screw-threadedly engaged with the spindle so that the spindle is rotated on relative axial movement between the piston and spindle, and stops 11 and 21 associated with the piston and spindle respectively to define the limits of axial movement. The device is operated from the position shown in Fig. 1 by feeding pressure medium into cylinder space 26 so as to move the piston 2 in the direction of arrow 34. Fluid pressure is also applied to cylinder space 25, thus exerting a force on the spindle in the direction of arrow 34 so that the spindle, together with the bending tool 23, is moved axially by a distance corresponding to the distance between end face 37 and the inner face of cylinder cover 14. At this position wire is introduced between a claw 43 and mandrel 41 of the bending device after which the piston is moved further in the direction of arrow 34. Since the piston and spindle are screwthreadedly engaged, movement of the piston relative to the spindle causes the spindle to rotate about its longitudinal axis so that the wire in the tool 23 is bent through an angle corresponding to the angle of rotation. The stop 11 abuts the cylinder cover 6 on completion of the bending operation. Pressure is then reduced in cylinder space 26 to return the spindle and piston to their starting positions. In another embodiment the spindle is fixed axially.
Patent GB-911369-A (GB)
Title: Improvements in or relating to automatic curve tracing devices
IPC: B23Q35/128
Filed: 1958-12-11
Abstract: 911,369. Photo-electric control systems. FUJI TSUSHINKI SEIZO KABUSHIKI KAISHA. Dec. 11, 1958 [Dec. 14, 1967], No. 40004/58. Class 40 (3). An automatic curve tracing device comprises a scanning mechanism provided with a reference PN junction diode and two scanning PN junction diodes, each diode being adapted so that its output voltage depends upon an area associated with the diode which is exposed to light rays, the extent of such area of each scanning diode being determined by the position of the diode relative to a curve to be traced, and the displacement of the mechanism being controlled in accordance with the differences between the output of the reference diode and that of each scanning diode. As shown, Fig. 2, a scanning device 4 comprises a reference diode Ds, half obscured by a mask, and two scanning diodes D 1 , D 2 , the former being located centrally of the scanning device 4 while the latter is displaced from the centre light is reflected on to all three diodes from the paper on which a curve 5 is drawn. The scanning device 4 is driven along X and Y axes by servomechanism responsive to the difference V 1  of the outputs of Ds and D 1 , and is also rotated by servomechanism responsive to the difference V 2  of the outputs of Ds and D 2 . In the latter servomechanism, Fig. 3, V 2  is fed via an amplifier 9 to a servomotor 10 which rotates, through gearing 11, a shaft 32 on which scanning device 4 is mounted. Rotation of shaft 32 is also transmitted to a resolver 6 which is supplied with V 1  and with power from a voltage source 12. Displacement of the scanning device along X and Y axes is controlled through gearing 20, 25, by servomotors 15, 16, Fig. 4, which are fed respectively through amplifiers 17, 18, with voltages Vx and Vy derived by the resolver 6 from the voltage from source 12. In addition, voltages Vx<SP>1</SP> and Vy<SP>1</SP>, derived by the resolver from V 1 , are superimposed on Vx and Vy respectively, to effect tracing of the curve 5. Tacho-generators 19, 24 provide rate feedback for motors 15, 16, which additionally operate pulse coders 28, 29 whose outputs, representative of the position of the scanning device, are supplied through amplifiers 30, 31 to control apparatus (not shown), e.g. for indicating the configuration of the curve or for disconnecting an oxygen supply. Fig. 5 shows the scanning mechanism, head 4 comprises a light acceptor 36 containing lenses 39, and a holder 37 containing the three diodes (two only shown), and is supported for rotation in a support 33.
Patent GB-1445909-A (GB)
Title: Hydroxy-telechelating oligomers
IPC: C08G64/02
Filed: 1974-09-13
Abstract: 1445909 Aliphatic diol polycarbonates SOC NATIONALE DES POUDRES ET EXPLOSIFS 13 Sept 1974 [16 Oct 1973] 40008/74 Heading C2C Oligomers of number average molecular weight 250-2500 of the general formula wherein A and B are aliphatic or cycloaliphatic, branched or unbranched radicals which may be unsubstituted or substituted by aliphatic or aromatic radicals, halogen atoms or phosphorus containing groups or may contain one or more functional bridges are prepared by (a) polycondensing a bis-chloroformate with a glycol HO-A-OH at below 150 C. under reduced pressure while flashing the reaction mixture with an inert anhydrous gas (e.g. nitrogen), (b) purifying the crude oligomers formed by washing a solution thereof in a volatile, water-immiscible solvent with an aqueous solution of a base, and (c) removing the solvent by evaporation. The inert solvent is preferably a chlorinated aliphatic solvent, e.g. dichloromethanes. The base may for example be a tertiary amine (triethylamine) or an alkali metal or an alkaline earth metal hydroxide; after washing with the base solution a subsequent wash with dilute ammonia containing active charcoal may take place. In the examples diethylene glycol bischloroformate is condensed with diethylene glycol, butane-1,4-diol, 2,2-dimethylpropane- 1,3-diol and with decane-1,10-diol. Butane-1,4-diol bis-chloroformate is condensed with butane-1,4-diol. Oligomers with number-average molecular weights in the range 760-2500 are obtained.
Patent GB-1299806-A (GB)
Title: Polymer composition
Inventor: BRAMWELL MICHAEL JOHN
IPC: C08K5/13
Filed: 1970-08-21
Abstract: 1299806 Stabilizing olefin polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 30 July 1971 [21 Aug 1970] 40420/70 Heading C3P Oolefin polymers are stabilized with (a) an alkoxyphenol of formula where R 1  is C 1-4  alkyl, R 2  and R 3  are C 1-10  alkyl or C 1-4  alkoxy; (b) a thioester where R 4  and R 5  are C 6-20  alkyl and n and m are 2 or 3; and (c) a phenolic antioxidant other than (a). The olefin polymer may be a polymer of ethylene, propylene, butene-1 and/or 4-methylpentene-1. Preferred thioesters are dilauryl, dimyristyl, dihexadecyl and distearyl thiodipropionates. Specified antioxidants include (3,5 - di - t. - butyl - 4 - hydroxyphenyl)- propionates, thio and methylene bisphenols, tris(hydroxybenzyl) benzenes and isocyanurates and tris(hydroxyphenyl) butanes. The compositions may also contain conventional ingredients, and examples describe compositions comprising polypropylene, 2,6 - di - t. - butyl - 4 - methoxyphenol, distearyl thiodipropionate, pentaerythrityl tetra - # - (3,5 - di - t. - butyl - 4 - hydroxyphenyl) propionate and calcium stearate.
Patent GB-1192315-A (GB)
Title: Tape Tension Control Arrangement for Magnetic Sound Recorders
Inventor: HORNSTEIN WOLF FRHR V
IPC: G11B15/43
Filed: 1968-08-23
Abstract: 1,192,315. Feeding record tapes. SUDDEUTSCHE MECHANISCHE WERKSTATTEN WOLF FRHR. V. HORNSTEIN K.G. 23 Aug., 1968 [24 Aug., 1967], No. 40485/68. Heading G5R. In a tape recorder, the tension in the tape 7 is controlled by means of pivoted sensing levers 9, 16, each subject to tape tension and to the counteracting force of a spring 17, 21 selected according to the desired value of tape tension, which influence the braking and/or driving torque transmitted by clutches 1, 2 to the tape reels 3, 4. The clutches are of the axially-actuated single-surfaced slipping type. Springs 17, 21 of different strengths are brought into use for different modes of operation of the recorder.
Patent GB-1103529-A (GB)
Title: Method for directional drilling a relief well to control an adjacent wild well
IPC: E21B7/08
Filed: 1966-09-13
Abstract: 1,103,529. Sound locating. J. K. HENDERSON. 13 Sept., 1966 [23 Oct., 1965], No. 40814/66. Heading H4D. [Also in Division E1] A method of directing the drilling of a relief well to intersect an adjacent wild well which is uncontrollably producing fluids, comprises detecting the sonic vibrations emanating from the wild well with a receiver and orienting the drilling of the relief well in response to the detected direction of the vibrations. The receiver may be carried adjacent the drill bit, or lowered into the drill pipe from time to time. The signal from the receiver is passed to a control panel on the surface for interpretation to enable the operators to adjust the direction as necessary using, e.g. whipstocks and a flexible drill pipe section. More than one receiver may be used at spaced points to permit triangulation The term sonic is used to cover detectable signals in general.