baber/WOPTO huggingface dataset:
Patent GB-1019305-A (GB)
Title: Circuit arrangement for flashing warning lights
IPC: H05B39/09
Filed: 1963-09-04
Abstract: 1,019,305. Visual signalling apparatus. K. JANONSKY, F. W. KULENKUMPFF, and E. KULENKUMPFF, [trading as KULENKUMPFF & CO.]. Sept. 4, 1963 [March 29, 1963], No. 34932/63. Heading G4F. [Also in Division H3] A circuit arrangement for flashing a warning light R4 comprises two transistors arranged to charge and discharge a capacitor, the charge or discharge path of the capacitor including the lamp. Transistor T1 conducts until capacitor C becomes charged through the base emitter path of transistor T1 and the lamp R4, reducing the base current sufficiently for T1 to cut off. The change in its collector potential switches transistor T2 on so that capacitor C discharges and charges in the reverse direction through the collector-emitter path of transistor T2 and resistor R3. This causes the base of transistor T1 to go negative until the transistor T1 again conducts and the cycle repeats. The arrangement may be used for flashing a warning light on a vehicle.
Patent GB-1430175-A (GB)
Title: High temperature-resistant and corrosion-resistant material of aluminium and boron nitrides
IPC: C04B35/583
Filed: 1973-07-23
Abstract: 1430175 Hot pressing aluminium nitride and boron nitride ELEKTROSCHMELZWERK KEMPTEN GmbH 23 July 1973 [25 July 1972] 34961/73 Headings C7A and C7D A powder mixture containing in wt per cent 10-60 aluminium nitride and 90-40 boron nitride containing 5-25 boron oxide is hot pressed at 1500-2200C and at 30-20 Kp/Cm<SP>2</SP> to form a refractory corrosion resistant body bonded together by reaction between the aluminium nitride and the boron oxide. The hot pressed body may be used in the manufacture or processing of molten metal such as Al e.g. as a crucible.
Patent GB-850340-A (GB)
Title: An umbrella tube
IPC: A45B19/04
Filed: 1958-10-31
Abstract: 850,340. Umbrellas. KORTENBACH, K., KORTENBACH, A., WORRING, D., WORRING, F., and WORRING, H. J. Oct. 31, 1958 [Dec. 6, 1957], No. 34974/58. Class 134 In a telescopic umbrella stick comprising an outer section 1 provided with a hollow ridge 3 fitting into a groove 4 in an inner section 2, the stick being held in the extended position by a spring-loaded detent 9, the two sections can only be separated by first extending them until the head of a pin 15 fixed to section 2 registers with a hole of equal cross-sectional area in the section 1, and then pressing the head inwards. As shown, the pin is carried on a spring strip 13 attached to a V- shaped strip 10 in the section 2, and abuts against an end of the ridge 3 when the stick is in the extended position.
Patent GB-911024-A (GB)
Title: Lubricating device for the shut-off member of a stopcock or valve
IPC: F16K5/22
Filed: 1960-10-12
Abstract: 911,024. Lubricating. KLUBER LUBRICATION G.m.b.H., and KLUBER, T., [trading as KLUBER LUBRICATION G.m.b.H. & CO. MUCHEN KOMM.-GES.]. Oct. 12, 1960 [Oct. 24, 1959], No. 34991/60. Class 12 (3). Lubricant is supplied from a reservoir 4 to a valve or stop-cock 1 via an internally screwthreaded pipe 2 having an air outlet 6 closable by a screw 5.
Patent GB-990886-A (GB)
Title: Improvements in and relating to starch derivatives
Inventor: HARRIS GEORGE CHRISTIE
IPC: C08B31/08
Filed: 1962-09-13
Abstract: A granular cationic-nonionic starch derivative consists of starch substituted by <FORM:0990886/C3/1> groups and R4 groups, wherein R1 is alkylene or hydroxy-alkylene, R2 and R3 are alkyl, aryl, aralkyl, cycloalkyl or heterocycloalkyl, and R4 is hydroxyalkyl.  The derivatives are made by reacting starch in presence of water and alkali with an alkylene oxide and with an aminoalkylation agent containing an appropriate tertiary amino group, under conditions such that gelatinization of the starch is substantially prevented. The reaction temperature may be 0-50 DEG  C. or up to 70 DEG  C. if a gelatinization inhibitor, e.g. sodium sulphate, is present in the reaction medium.  Specified derivatives are granular diethylaminoethyl hydroxypropyl starch, diethylaminoethyl hydroxyethyl starch, dimethylaminoethyl hydroxypropyl starch, diethylaminohydroxypropyl hydroxypropyl starch, and morpholinoethyl hydroxypropyl starch.  The compounds may be used, optionally after gelatinization, to form the continuous phase of a paper size in which the disperse phase is a ketene dimer of formula [R-CH=C=O]2, where R is an alkyl radical having at least 8 carbon atoms, a cycloalkyl radical having at least 6 carbon atoms, or an aryl, aralkyl or alkaryl group (see Division D2).ALSO:Paper is sized with an aqueous emulsion comprising, as the continuous phase, an aqueous solution of a granular starch derivative consisting of starch substituted by <FORM:0990886/D1-D2/1> and -R4 groups, where R1 is alkylene or hydroxyalkylene, R2 and R3 are alkyl, aryl aralkyl, cycloalkyl, or heterocycloalkyl, and R4 is hydroxyalkyl, or a gelatinised starch derivative made by gelatinising such a granular derivative, and as the disperse phase, a ketene dimer or mixture of ketene dimers of formula [R-CH=C=O]2 in which R is aryl, aralkyl, alkaryl, alkyl having at least 8 carbon atoms, or cycloalkyl having at least 6 carbon atoms.  On a paper machine, the emulsion is preferably added between and including the intake side of the fan pump and the head box.  The emulsions may also be used for surface sizing.
Patent GB-191041-A (GB)
Title: Lantern with lens
IPC: F21S8/10
Filed: 1922-12-27
Abstract: 191,041. Naamlooze Vennootschap Machinerieen en Apparaten Fabrieken, (Assignees of Braam van Vloten,'P. van). Dec. 27, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Search-lights; vehicle lamps; mounting electric lamps in lanterns.-To prevent dazzle, the source of light is so placed with respect to the lens that none of the rays emitted through the lens have an upward direction. The source of light has very small vertical dimensions and large horizontal dimensions and is adjustable horizontally and vertically.
Patent GB-1035358-A (GB)
Title: Improvements relating to ball-winding machines
IPC: B65H54/66
Filed: 1963-09-05
Abstract: 1, 035, 358. Ball-winding machine. CROON & LUCKE G.m.b.H. Sept. 5, 1963 [Sept. 7, 1962], No. 35194/63. Heading D1J. A ball-winding machine in which each flyer includes a thread-guiding tube has a blower arranged to apply suction to the outlet of each tube in order to draw a yarn therethrough. The blower 50, Fig. 1 (not shown), and its tube 72, may be used on several flyers 2 extending along the machine. The blower 50 rests on a two-armed lever 58 that normally maintains upon a switch 60 but when the blower is removed a spring 59 acting on the lever 58 permits the switch 60 to close and energize the blower.
Patent GB-996008-A (GB)
Title: Improvements in and relating to the manufacture of crystals
Inventor: BRICE JOHN CHADWICK
IPC: C30B15/10
Filed: 1961-09-29
Abstract: 996,008. Crystal-pulling. MULLARD Ltd. Sept. 29, 1961, No. 35225/61. Heading B1S. The presence of scum around a crystal being pulled from a melt is avoided by the use of a floating enclosure member of inert material and a desired impurity is added to the melt outside the enclosure member. The crystal may be of, germanium, gallium telluride, or indium antimonide; and the enclosure member may be of silica. As shown in Fig. 1, a crystal 4 is pulled from a melt 11 on which floats an enclosure member 13 having positioning arms 14 Fig. 2.
Patent GB-1086779-A (GB)
Title: Magnesium aluminium hydroxy carbonates
IPC: C01F7/785
Filed: 1965-08-17
Abstract: Magnesium aluminium hydroxy carbonates, containing not more than 0.2 mol per cent Na and of the general formula Al2O3.XMgO.YCO2.ZH2O, where X = 0.15 to 1.5, Y = 0.3 to 2.5 and Z is not less than 2.5, are prepared by contacting an aq. slurry of MgCO3, Mg(HCO3)2 or a mixture thereof, with an H2O-soluble aluminium salt in the presence of a stoichiometric excess of Mg ions and the essential absence of Na ions, recovering the ppt. and treating to adjust its H2O-content to not less than 2.5 mols H2O per mol. of Al, calculated as Al2O3, in the compound.  The Al-salt may be the sulphate, chloride or nitrate. Where the sulphate is used, the product may contain a significant amount of combined sulphate.  A ratio of 1.05-1.50 equivs. of Mg to 1 equiv. Al3+ is preferred in the reaction mixture.  The product may be reslurried, or dried, e.g. in a spray drier with an inlet temp. of 325-375 DEG  C. and an outlet temp. of 105-130 DEG  C.
Patent GB-1454992-A (GB)
Title: Electrical installations and building constructions manufacture of nicle
IPC: E04B5/48
Filed: 1972-07-27
Abstract: 1454992 Embedding conduits in concrete DRAKE & SCULL ENG Ltd 29 Oct 1973 [27 July 1972] 35270/72 Heading B5A [Also in Divisions E1 and H2] A passageway for electrical cable is formed in a cast-in-situ or pre-cast structure 20, e.g. a concrete wall or floor, by placing within the shuttering or mould 12 a box 10 having at least one hole therein, threading a conduit 14 or 15 through the hole so as to extend across the interior of the box and outwardly thereof, pouring concrete into the shuttering or mould so that a surface of the box forms part of the surface of the cast structure 20, removing at least part of that surface of the box, and removing at least part of the conduit inside the box, whereby cables may be threaded into the remaining part of the conduit embedded in the cast structure and forming the passageway. The removable part of the surface of the box 10 is preferably a cap 11 having snap-fit engagement with a collar round an opening in the box, the cap being, fastened to the shuttering during casting. To serve as a junction box, the box 10 has several opposed pairs of holes to receive conduits, any unused holes being plugged during casting. The box and conduits are of plastics. For mounting electrical fittings in the box, a metal stirrup, (Figs. 6 to 9, not shown) having snap-fit engagement with the collar, is provided.
Patent GB-324751-A (GB)
Title: Improvements relating to lathes and like machine tools
IPC: B23B31/34
Filed: 1928-11-30
Abstract: 324,751. Hopkinson, R. A., Metcalfe, T., and Hopkinsons, Ltd. Nov. 30, 1928. Chucks; indexing. -In a chuck of the kind in which the jaws are indexable about an axis perpendicular to the chuck axis in order to present different faces of the work for machining in a lathe &c., the means for rotating and locking the jaws are in part co-axial within the lathe spindle and are operated whilst the chuck is rotating. The chuck comprises two jaws a, b, the jaw a carrying a stem d rotatably mounted on the chuck c. A notched index plate e is attached to the stem d and is normally engaged by a spring plunger i. A toothed quadrant g is rotatable on the stem and is connected by gearing k .. p to a shaft q coaxial within the lathe spindle r and provided with a quick pitch thread s engaged by a nut t splined within the spindle. In operation, to index the work, the nut is moved axially by a lever v, causing the shaft q to be rotated relatively to the spindle and rotating the quadrant g. A face cam h on the quadrant first depresses the plunger i to release the index plate e and a spring pawl j on the quadrant then rotates the jaw by means of a ratchet f secured to the spindle d. On the return of the quadrant a spring pawl w, Fig. 3, prevents reverse rotation of the jaw until the plunger i engages the plate e. The opposing jaw b is rotatably mounted in a block x pressed inwards against a spring z to engage the work by a radial screw y. The amount of rotation imparted to the work may be varied by varying the pitch of the threads s or the traverse of the nut t and the jaws may be changed readily to suit the work.
Patent GB-320807-A (GB)
Title: Flexible discs for shaft couplings
IPC: F16D3/78
Filed: 1928-12-01
Abstract: 320,807. Hardy, Spicer, & Co., Ltd., (Soc. Anon. Etablissements Brampton). Dec. 1,1928. Universal joints.- In flexible discs of the type described in Specification 11167/14 having strips 2 of rubberized canvas arranged in polygonal form and intermediate pack ing pieces, the surface gaps 3 are filled in with triangular pieces 4, and after vulcanization the discs are cut to annular shape. In a modified construction of disc, using wide strips normally overlapping at - the corners, small triangular pieces are cut off so that adjacent strips abut along the lines 8.
Patent GB-1140730-A (GB)
Title: Hyphenation machine for line composing
IPC: G06F40/191
Filed: 1966-08-08
Abstract: 1,140,730. Strip-perforating machines; typebar-making machines. LOCKHEED AIRCRAFT CORP. 8 Aug., 1966 [9 Aug., 1965], No. 35489/66. Heading B6W. Justifying type; control by record strips.-In. formation relating to characters received from a perforated tape or other means is stored in such a way that a string of characters can be simultaneously examined electrically to determine where said characters can be hyphenated to end a line. In particular, the characters in storage cells on either side of a point of investigation are sensed to determine whether they are vowels or consonants, spaces or punctuation, and further consequent information is obtained from the adjoining characters, which are stepped past said point by a clock pulse device. Certain letter combinations are inserted into the cells as a single code signal. The circuits analyse the character combinations in accordance with hyphenating rules of the English language to determine whether a hyphenating condition exists, in particular when a line has reached justifiable length, the output signals representing a combination of end-of-line, justification, and hyphenating information.
Patent GB-374047-A (GB)
Title: Improvements in or relating to the production of cellulosic products
IPC: D21B1/36
Filed: 1930-11-26
Abstract: 374,047. Preparation of cellulose from raw materials. DREYFUS, H., 22, Hanover Square, London. Nov. 26, 1930, No. 35640. [Class 96.] Wood, straw, grasses, or other lignified materials containing substantially all of their original lignin content are subjected to a treatment which comprises developing gaseous or vaporous pressure within the materials and suddenly releasing the same, whilst avoiding any substantial modification of the lignin content. The materials may be subjected to a preliminary treatment in order to dissolve out resins and the like, e.g. by means of dilute caustic soda. The pressure may be developed by the vaporization of liquid within the materials, or by impregnating with substances which liberate a gas on heating, e.g. a solution of sodium bicarbonate, and heating the impregnated material in a closed vessel. The sudden release of the developed pressure causes the materials to be opened up and disintegrated, and they may then be subjected to any pulping process. In an example, wood chips are extracted with a cold 5 per cent solution of caustic soda, washed, dried, and impregnated with sodium bicarbonate solution preferably under pressure. The chips are then heated in a closed vessel to 130-140‹ C, and the developed pressure released as suddenly as possible. The resulting material is washed and pulped.
Patent GB-1083704-A (GB)
Title: Improvements in and relating to multiway control valves
Inventor: RUCHSER ERICH
IPC: F15B13/043
Filed: 1964-09-01
Abstract: 1,083,704. Valves. E. HERION. Sept. 1, 1964, No. 35695/64. Heading F2V. A pilot controlled multiway valve has an inlet 2, work ports 3, 3<SP>1</SP> and exhaust ports 4, 4<SP>1</SP>, the communication between ports 3, 4 and 3<SP>1</SP>, 4<SP>1</SP> being controlled by respective pistons 14 co-operating with annular seals 15, whilst the communication between ports 2, 3 and 3<SP>1</SP> is controlled by a doubleacting poppet 19 co-operating with annular seats 17. As shown, differential actuating pistons 8, 8<SP>1</SP> are provided, the latter being the larger and being controlled by pilot valve 11. In an alternative embodiment (Fig. 2, not shown) equal area actuating pistons are used, each piston being controlled by a respective pilot valve. The poppet is larger in area than pistons 14 so that fluid at the inlet tends to maintain the valve in position.
Patent GB-922964-A (GB)
Title: Improvements in or relating to logical circuit elements
Inventor: MARCHANT HAROLD
IPC: H03K19/084
Filed: 1960-10-18
Abstract: 922,964. Transistor switching; logic circuits. SOLARTRON ELECTRONIC GROUP Ltd. Oct. 11, 1961 [Oct. 18, 1960], No. 35720/60. Class 40 (6). A NOR circuit element of the type comprising two input terminals connected through two diodes to the base of a transistor, the collector circuit of the transistor including a load resistor and a potential catching circuit, includes a circuit for providing a rectified A.C. supply connected between the diodes and the base of the transistors, the rectified A.C. being smoothed by a shunt capacitor and a resistor being connected between the base and a source of base bias voltage. As shown in Fig. 4, a potential shift is introduced between input diodes 12, 13 and the base of transistor 15 by means of a square waveform alternating voltage supplied by transformer 25, rectified by rectifier 26 and smoothed by a shunt capacitor 27. When both inputs 10, 11 are at- E/n volts (logical 0) transistor 15 is bottomed and the voltage appearing at output terminal 20 is zero (logical 1), the diode 26 isolating the input terminals from the transistor. When either inputs are at zero volts (logical 1) the output voltage from terminal 20 is caught at - E/n volts (logical 0). In this OFF state of the transistor 15 there is a low impedance path between the appropriate input terminal and the transistor base through one of the input diodes, the transformer secondary winding and the diode 26 when it is conducting so that the problem of providing a low impedance path for the transistor leakage currents does not arise and even when the diode 26 is non-conducting the leakage current can flow into the capacitor, the frequency of the A.C. passed through the primary winding of transformer 25 being at least twice the digit frequency at which pulses can appear at either of the input terminals 10, 11 so that when the transistor is OFF and the diode 36 is non- conducting the capacitor 27 does not discharge through the resistor 28 sufficiently to allow the transistor to turn on again. Alternatively, a full-wave rectifier system with a centre-tapped transformer secondary winding and two diodes may be used. Improved switching performance of the circuit may be obtained by the addition of inductor 29 and resistor 30 connected in series as shown, the time constant being so chosen that during the switching-on time of the circuit very little current builds up in the inductor 29 whereas a digit time later when the stage turns off again the current in the inductor is slightly less than the current flowing in resistor 14 and very little input current will flow in resistor 14 so that more is available to flow into the base of the transistor.
Patent GB-464219-A (GB)
Title: Means for controlling flow or delivery of pulverulent material
IPC: G01F13/00
Filed: 1935-12-27
Abstract: 464,219. Delivering material from hoppers. GAIR, D., and JACKSON & CROCKATT, Ltd., J. G. Dec. 27, 1935, No. 35812. [Class 78 (i)] To maintain a constant head of pulverulent material in a reservoir 6, so that definite quantities may be delivered to the passage 7 by the rotation of the perforated valve 11, the latter is fitted with stirring blades 12 which carry the material round with them and thus impose a pressure on a depending plate 10, pivoted on a horizontal axis 9, which is proportionate to the depth of material in the reservoir. At predetermined pressure the plate is tilted counter-clockwise and causes sweep 8 to be raised further from a rotating table 4, thus removing less material from the table. Diminution of the head of material in the reservoir causes a corresponding lowering of the sweep 8 and an increased delivery of material. The table 4 is supplied by gravity through the open bottom of a hopper 2. Screwed rods 15 permit the distance between the hopper and the table 4 to be adjusted. The plate 9 and sweep 8 might rotate and the table 4 be fixed. Alternatively the plate 9 might be replaced by a float member resting on the surface of the material in the reservoir and acting on the sweep similarly to a float-feed valve.
Patent GB-405096-A (GB)
Title: Improvements relating to the control of selecting switches for use in automatic telephone and other selective systems
IPC: H01H63/22
Filed: 1932-12-17
Abstract: 405,096. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and HUMPHRIES, H. E., 61, Rochester Way, Blackheath, both in London. Dec. 17, 1932, No. 35828. [Class 40 (iv).] A selector of the kind described in Specification 388,173 which is driven by an individual electric motor under the control of a magnet which when energized removes a stop from engagement with the gear-train is arranged to be advanced step-by-step in response to impulses. In arrangements in which the selector takes one step per impulse, the stop magnet LM energizes at the beginning of an impulse and prepares a circuit for the motor M1, M2 which becomes effective on the termination of impulse. In Fig. 1, the stop magnet LM locks upon energizing at the impulse break and holds until it receives current through both windings which are in opposition when make-before-break contacts m change over. Contacts Lm1 are arranged to remain closed until the stop falls into engagement with the gearing so as to ensure completion of the step in case LM relapses before it is complete. When the make period of the impulses is short compared with the break, a winding of the impulse relay A may be connected in series with the motor to hold the relay until the step is complete. In modifications of this arrangement, the stop magnet LM is controlled by an auxiliary relay which pulls up over the impulsing contact and locks dependent on contacts m. In Fig. 4, the auxiliary relay X does not lock, but falls back slowly on the make of the impulse due to a condenser-resistance shunt. The step in this case may involve an advance over a number of terminals. In Fig. 5, the stop magnet LM energizes at the impulse break, and on the subsequent make holds in series with relay X (i), which starts the motor and connects in its high-resistance winding X (ii), thus causing LM to release slowly, the stop falling into position after a period equivalent to one step. The arrangement of Fig. 6 differs from those above in that two steps are taken per impulse, a relay T being controlled by the position of the selector. As shown, T energizes in each odd position and LM has alternate circuits over the front and back of contact t at the impulse break and make respectively. The connections to the control bank may be modified so that each step comprises a number of terminals. A winding of the impulse relay A may be connected in series with LM as shown to hold the relay until the second of the two steps is complete.
Patent GB-430755-A (GB)
Title: Improvements connected with toy railways
IPC: A63H19/30
Filed: 1933-12-21
Abstract: 430,755. Toy railways. WINTERING- HAM, Ltd., and MACKENZIE, J., Stimpson Avenue, Northampton. Dec. 21, 1933, No. 35955. [Class 132 (iii)] A toy railway has reversing mechanism for the locomotive comprising a trip lever 1<a> positioned from outside the track by the lever 1<b> in either the vertical position for tripping a reversing lever on the locomotive or in the approximately horizontal inoperative position. The lever 1<a> is maintained in either position by a flat spring 6 engaging bent-up faces 1<c> on the metal strip 1-from which the levers 1<a>, 1<b> are bent. The metal strip 1 is mounted on a spindle 3 rockably mounted in lugs 4<b> in a base which also carries the rails 5 and has secured thereto a metal cover 7 having slots engaging the flat spring 6. In tripping the reversing lever on the locomotive the lever 1<a> is rotated to the inoperative position.