baber/WOPTO huggingface dataset:
Patent GB-1462474-A (GB)
Title: Circuitry for detection of peaks of an electrical waveform
IPC: H03K5/153
Filed: 1974-05-06
Abstract: 1462474 Detecting waveform peaks LICENTIA PATENT VERWALTUNGS GmbH 6 May 1974 [5 May 1973] 19867/74 Heading H3P Peaks in a waveform of uncertain zero level, e.g. from scanning digital data, are detected by feeding the waveform to one input of a first comparator K1 and via a delay line to one input of another K2, an intermediate point in the line being connected to the other inputs of the comparators through a constant voltage dropping device G1, the output being obtained from the conjunctive combination at G2 of the outputs of the amplifiers. The circuit as shown provides an output only when the waveform level at the intermediate point less the constant voltage is greater than the waveform level at both the input and output end of the line. A similar circuit K3, K4, S2 prevents an output when the level at both input and output of the line is greater than the voltage at the intermediate point less the voltage S2.
Patent GB-893522-A (GB)
Title: Improvements in and relating to the production of metal oxide powders
IPC: C01F7/422
Filed: 1959-06-11
Abstract: Finely divided metal oxides (the term "metal" includes silicon) are produced by introducing a metal powder or a volatilizable metal compound into a detonable charge comprising an oxygen/fuel mixture which produces an oxidizing atmosphere on detonation, and igniting to produce a detonation wave whereby the oxides produced are carried towards a collecting means where they may be recovered as such or as a coating on a target surface. Purging of the reaction chamber is effected by a combination of shock waves and the intermittent non-ignited oxidant/fuel mixture flow.  In the case of titanium, magnesium and aluminium, the finely divided metal in combination with oxygen may form the detonable charge.  According to Examples, (1) finely divided aluminium contained in a nitrogen carrier gas was mixed with an oxygen-acetylene mixture and introduced into a detonation chamber, where it was sparked at 4 times per second. Finely divided alumina was collected in an enlarged collecting zone or on a target surface.  A silica may be produced from silicon powder by a similar method.  (4) Silicon tetrachloride was mixed with an oxygen-acetylene detonable charge and subjected to detonation to produce a silica having a surface area of 107 sq. meters per gram. Further Examples relate to the use of a mixture of silicon tetrachloride and hexamethyldiethoxy silane and a mixture of silicon powder and dimethyldiethoxy silane to produce finely divided silica. Specification 742,458 is referred to.
Patent GB-381946-A (GB)
Title: Improvements in electromagnetic relay arrangements employed in electrical signallingsystems
IPC: H03K17/54
Filed: 1931-07-13
Abstract: 381,946. Light current relays. STANDARD TELEPHONES & CABLES, Ltd. and JACOBSEN, B. B., Connaught House, Aldwych, London. July 13, 1931, No. 20102. [Class 38 (v).] To prevent sticking of the contacts of sensitive relays, the relay is tested to ascertain if it is legitimately or falsely operated. For this purpose the armature of the relay is arranged to be vibrated after it has remained operated a predetermined time interval, and this vibration of the armature may be produced by a testing current impulse supplied by a condenser. As shown in the Figure, the relay coil 1 which is energized from a pilot circuit L is arranged to bring its armature 4 into engagement with one or other of a pair of oppositely disposed fixed contacts 5, 6 in accordance with variations of current in the pilot circuit, so completing the circuit of a corresponding relay 7 or 10 in series with a slow-acting relay 9. The high resistance of the coil of relay 9 prevents the operation of the series-connected relay 7 or 10, but the slow-acting relay 9 is itself operated and disengages its contact 11 from the fixed contact 12 after a time interval, so that a circuit from the battery 8 is completed through a resistance 13, condenser 14 and the primary winding 15 of a transformer T which has its secondary winding 16 in the pilot circuit L. The consequent charging current impulse in this circuit produces a two-way current impulse in the secondary circuit including the winding 16, condenser 17 and the relay winding 1. This impulse has the effect of momentarily vibrating the armature 4 away from the fixed contact which it engages so that if the armature had been operated merely by a transient deviation of the current in the pilot circuit from the normal value with subsequent sticking or welding of the contacts holding the armature incorrectly in such operated position, the movable contact is immediately freed and the relay 9 is released. If, however, the relay 1 is correctly operated, the armature re-engages the contact 5 or 6 and the relay 9 continues to operate until its contact arm 11 engages the contact 18. The relay 7 or 10 is now placed in series with a small section only of the winding of relay 9 and the consequent increase in current effects the operation of the relay 7 or 10. The time-lag effect of the slow-acting relay 9 may be replaced, Fig. 4 (not shown) by a thermionic valve provided with a resistance-capacity combination in the grid circuit so as to produce a delay in the operation of a relay in its anode circuit. A maintaining circuit for the relay 9 is provided through the fixed contact 18 and a portion of the relay winding. In cases where it is not convenient to pass the testing impulse through the relay winding itself it may be passed through the winding of a separate relay the armature of which is arranged mechanically to produce a vibration of the armature of the relay in the pilot circuit. Alternatively the testing impulse may be passed through an additional winding on the core of the relay 1.
Patent GB-1119870-A (GB)
Title: Circuit arrangement of modulator or demodulator with adjustable operating point for non-linear impedance
Inventor: MACK ZDENEK
IPC: H03C1/58
Filed: 1966-05-06
Abstract: 1,119,870. Modulators; stereophonic radio receivers. TESLA NARODNI PODNIK. 6 May, 1966 [10 May, 1965], No. 20127/66. Headings H3R and H4L. The modulator/demodulator described in Specification 1,105,632 is modified by the provision of biasing means for the diodes. In one arrangement, Fig. 3 (not shown), the midpoints of opposite arms of the bridge are connected together and connected by respective resistances to opposite poles of a battery. In a modification opposite arms of the bridge comprise a capacitor in series with two resistances, the junctions of the capacitors with the resistances being earthed via respective resistances. A battery has one terminal earthed and the other connected to the junction of two resistances across the input terminals, Fig. 4 (not shown), or to the mid-point of an inductance across the input, Fig. 5 (not shown). In a further modification, Fig. 6 (not shown), a battery is connected across a capacitor inserted in one arm of the bridge, and the diodes are joined by two capacitors the junction of which forms an output terminal.
Patent GB-251153-A (GB)
Title: Improved apparatus for cleaning sacks and the like
IPC: D06G1/00
Filed: 1925-08-11
Abstract: 251,153. Lutovitch, I. Aug. 11, 1925. Carpets and the like, beating and cleaning.- An apparatus for beating and cleaning sacks, carpets and like articles comprises a casing 1 divided into two compartments, each of which houses a beater 3, 3a respectively. The bottom of each compartment comprises a concave floor, one half 4 of which is perforated so that heavy dust &c. can pass through for discharge by a conveyer 5, whilst the other half 6 is provided with a removable portion 7 through which the cleaned sacks are discharged on to a second conveyer 8. Platforms 12, 13 for loading are provided. Ducts 20 for the withdrawing of light dust may also be provided. In a modification the beaters are replaced by endless bands carrying projecting beating arms.
Patent GB-1504914-A (GB)
Title: Joint for connecting a pipe end to a second member
IPC: F16L23/12
Filed: 1975-05-13
Abstract: 1504914 Pipe joints; covers for pipes SANDVIK AB 13 May 1975 20203/75 Headings F2G and F2P  In a joint between pipes 10, 13 having opposed, outwardly-extending flanges with mating surfaces defining therebetween an annular channel for a sealing ring 14, or a plain disc and a flanged pipe the flanges are clamped together by holding means extending substantially radially inwardly towards the longitudinal axis of the pipes. The holding means may comprise a series of clamps 18 spaced circumferentially about the flanges and secured as by bolts 19, co-operating tapered surfaces such as 20, 21 being provided on the flanges and the clamps to urge the former together. The pipe 13 with its flange 12 may be replaced by a cover secured in like manner. A series of joints as above may be arranged in a regular array to form a closed-packed assembly, see Fig. 3 (not shown).
Patent GB-729153-A (GB)
Title: Improvements in vehicle driving arrangements
IPC: B60K17/10
Filed: 1952-08-12
Abstract: 729,153. Motor vehicle hydraulic driving gear. HUTCHINSON, G. V. V. Aug. 24, 1953 [Aug. 12, 1952], No. 20228/52. Class 79(2). In a vehicle having wheels driven through a hydraulic pump and hydraulic motors the wheels are made to rotate at the same speed by operation of a dog clutch to lock together two coaxial shafts each geared to one of the wheels. As shown in Fig. 2 the invention is applied to a road roller of the three-roll type, the roll 1 being steerable and the rolls 2 being driven from an internal combustion engine 4. The engine 4 is coupled directly or through reduction gearing to the hydraulic pump 5 which is connected by piping and valves to the hydraulic motors 13, the valves controlling the starting, stopping, reversing and speed of the roller. A pinion 12 on each motor 13 meshes with a gear wheel 11 of one of the shafts 8 which are each gear connected to the respective roll 2. The shafts 8 can be connected by the dog clutch 9, 10 for rotation in unison. In a modification, Fig. 3, the shaft 19 of each motor 13 is connected to the respective shaft 8 through a two-speed gear which comprises pinions 14, 16 clutchable to the shaft 19 and meshing with gears 12A, 15 on a countershaft 18, the gear 12A meshing the gear 11 on the shaft 8. In a modification, Fig. 4 (not shown) the driving arrangement shown in Fig. 2 is applied to a tandem roller, the engine and pump being arranged transversely of the vehicle. The hydraulic pump may be of constant or variable output.
Patent GB-148331-A (GB)
Title: Improvements in compressed air actuated safety brake apparatus for hoists and the like
IPC: B66B1/12
Filed: 1920-07-09
Abstract: 148,331. Jordan, F. Oct. 21, 1916, [Convention date]. Catch gear of minecage type.-In apparatus in which the catch gear is kept cut of action by compressed air, the air is released at a predetermined acceleration by the movement of a piston valve 2 caused by a weight 6 secured to the slidable rod 3 on which the valve rests. A spring 7 is placed between the weight and the casing, and its tension is adjusted so that the weight moves upwards when the desired acceleration is attained. Springs 11 keep the valve in the raised position in which the air from the brake cylinder passes through the passage B and openings 8, 9, 10 to the atmosphere, and the air supply A is cut off. The valve can also be raised by a pin 13.
Patent GB-1103036-A (GB)
Title: Thermoplastic recording medium
IPC: G11C13/04
Filed: 1966-05-09
Abstract: 1,103,036. Thermoplastic recording. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 9, 1966 [May 12, 1965], No.20415/66. Heading G2H. A thermoplastic recording medium has an insulating substrate 10, a plurality of conductors 12 and a layer 14 of thermoplastic material. The layer 14 is deformed as shown in Fig.2 after a uniform electrostatic charge has been deposited on layer 14 and the layer is heated by passing a current through the conductors. An information storage apparatus, Fig. 4 (not shown) has two electron guns (31) and (32). The gun (31) deposits a uniform charge on the recording medium, such that on heating it deforms as shown in Fig. 2. A charge in accordance with the information to be recorded is then deposited by electron gun (32), the beam being controlled by an X deflection control (45) under the control of detectors (41) (42) which detect the position of the beam and initiate a correction should the beam stray away from the centre of a channel.
Patent GB-1303283-A (GB)
IPC: F16M11/32
Filed: 1970-04-28
Abstract: 1303283 Tripod stands C NIGGELOH 28 April 1970 [28 April 1969 28 Nov 19691 20420/70 Heading A4H A tripod stand comprises at least three legs 1, each comprising telescopic lockable tubes 9 pivoted to a head 4, the stand including a rigid carrying handle 2 fast on at least one of the legs 1. Carrying loops 2', 2" may be provided on head 4 and/or on a camera support plate 6. Handle 2 and legs 1 may be injection moulded together from, e.g. polyamide. They may be glass fibre reinforced. An arm 7 for pivoting the camera is retained in handle 2 by a screw clamp. Legs 1 and handle 2 may be of plastics coated metal.
Patent GB-457350-A (GB)
Title: Improvements in or relating to celluloid and the manufacture thereof
IPC: C08J7/06
Filed: 1935-07-18
Abstract: Celluloid is fireproofed by treating sheets with a solution in a plasticizing solvent such as acetone, or stannous chloride, and a substance such as zinc chloride or antimony trichloride capable of yielding an oxychloride in the presence of water, the treatment being carried out in the absence of added acid.  According to an example, a celluloid sheet is immersed in a bath consisting of 40 parts of methylated spirit, 8 parts of stannous chloride solution, 8 parts of zinc chloride solution, and 20 parts of acetone, all by volume.  When the sheet becomes plastic, about 20 mins. at 23 DEG  C., it is removed and dried.ALSO:Celluloid is fireproofed by treating sheets with a solution in a plasticizing solvent such as acetone, of stannous chloride, and a substance such as zinc chloride or antimony trichloride capable of yielding an oxychloride in the presence of water, the treatment being carried out in the absence of added acid. According to an example, a celluloid sheet is immersed in a bath consisting of 40 parts methylated spirit, 8 parts of stannous chloride solution, 8 parts of zinc chloride solution, and 20 parts of acetone, all by volume.  When the sheet becomes plastic-about 20 min. at 23 DEG  C.-it is removed and dried.
Patent GB-445323-A (GB)
Title: Improvements in and relating to compasses
IPC: G01C17/00
Filed: 1935-07-18
Abstract: 445,323. Magnetic compasses. TILLANDER, G., 3, Rosvõgen, Stocksund, and EKEBERG, H. R., 14, Valhallavõgen, Stockholm, both in Sweden. July 18, 1935, No. 20506. Convention date, July 21, 1934. Addition to 445,312. [Class 97 (ii)] The liquid-filled casing of a magnetic compass is made wholly of resilient material and in two or more parts joined together, e.g. by glueing, melting, or welding. In the form shown, the casing comprises an upper transparent part a with side wall b to which a thinner, more resilient bottom c is secured. The two parts are preferably made of the same material, e.g. celluloid or the materials known under the Registered Trade Marks " Cellon " and " Rhodoid." A rigid plate f apertured at k is fixed to the side wall band supports the pivot g for the needle h. The casing a, b, c, is surrounded by a protective casing with transparent top t and a bottom r, recessed at s to allow.the resilient part c to adjust itself in accordance with the expansion of the liquid.
Patent GB-142000-A (GB)
Title: Improvements in or relating to ladies' hand bags
IPC: A45C3/06
Filed: 1919-08-21
Abstract: 142,000. Rolland, D. M. Aug. 21, 1919. Bags.-The body and tubular handle of a ladies' hand-bag are of wool crocheted or knitted in a close stitch and teazled or brushed with a wire brush to give a soft surface. The ends of the handle are attached to rings on the hinged mouthframe.
Patent GB-148845-A (GB)
Title: Apparatus for closing the outlets of bunkers and the like
IPC: B65D90/62
Filed: 1920-07-10
Abstract: 148,845. Wedekind, C. W., (Assignee of Meyer, 0., and Knehn, K.). Jan. 7, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Loading hoppers; shoots.-In order to reduce the friction between the rotary shutter b at the outlet of a hopper and the material, the shutter b, when closed, is covered by a trap e pivoted to the hopper at d and provided with rollers f bearing on the shutter. As the shutter, which is pivoted at c, is opened it runs under the rollers f until it clears them, after which rollers g carried by the shutter run on the underside of the trap and allow the trap to drop into the position shown in broken lines in which it forms a continuation of the bottom of the hopper.
Patent GB-917536-A (GB)
Title: Improvements in or relating to conveying apparatus
IPC: B65G49/04
Filed: 1961-06-07
Abstract: 917,536. Endless and step-by-step conveyers. UDYLITE RESEARCH CORPORATION. June 7, 1961 [June 8, 1960], No. 20630/61. Class 78 (1). Work-supporting arms 38 pivoted to work carriers 32 are raised and lowered when cams 70 are longitudinally reciprocated. The carriers 32 each comprise a roller bracket 34 movably mounted on a continuous rail 36 and are intermittently advanced along the rail by a continuous chain 54. The cams 70 are detachably secured to a longitudinally extending slide bar 66 which engages a cam follower 74 on the arm 38 when the follower is not engaged by a cam 70. Chain 54 is moved by a motor gear-box unit 86, 88 connected by a crank 92, rod 94 and lever 96 to a ratchet 108, a movement of the lever 96 also being transmitted to the slide bars 66 and cams 70 by a tie-rod 102, an equalizer lever 100, links 104 and ears 106 which extend inwardly from the bars 66. The motor or gear-box may be variable speed types. In conveying work racks 24 through treating receptacles 16, the racks are periodically raised and lowered over partitions 28 by the longitudinal reciprocation of the cams 70. By incorporating a down-dwell timer the time the racks are lowered in the receptacle may be extended. " Skip " operation of the racks at one or more stations may be achieved by having an extended flat top portion to the cam, thus causing the worksupporting arms 38 to be maintained in an elevated position for a longer than normal period. Fig. 9 shows a lost-motion cam 114 mounted in sliding engagement with a lifting cam 70. The arrangement permits a delayed set-down of the racks. The conveyer may be of the straight through type, the work being loaded at one end and unloaded at the opposite end.
Patent GB-298720-A (GB)
Title: Adjustable anti-glare motor goggles
IPC: G02C9/02
Filed: 1927-08-05
Abstract: 298,720. Fabian, J. Aug. 5, 1927. Goggles having clear eye screens A are provided with hinged adjustable tinted screens E, separately attached to each eye piece. The tinted screens E are provided with metal bands or clips F attached to the upper edge of the screen, part of the band F constituting a portion of the hinge G, the other portion being secured to a flange of the clear screen A.
Patent GB-339930-A (GB)
Title: Improvements in and relating to welding electrodes and methods of manufacturing the same
IPC: B23K35/04
Filed: 1930-07-08
Abstract: 339,930. British Thomson-Houston Co., Ltd., (Assignees of Weed, J. M.). July 8, 1929, [Convention date]. Uniting by fusion. - A metallic-arc welding electrode is coated with an alkali metal acetate, such as sodium acetate, in order to obtain a short arc with a low rate of fusion and deep penetrating power so as to produce a ductile weld. The alkali acetate may be mixed with alkaline earth metal carbonates and titanium oxide, one composition consisting of 1 part each of calcium and barium carbonates, 2 parts of titanium oxide and 4 parts of sodium acetate. The electrode prior to coating with flux may be pickled in a solution of hydrofluoric acid, preferably a 10 per cent solution, to remove die lubricant and dirt and give it a napped surface, aud is then rinsed in hot water and dried. Prior to such treatment it may be washed in a caustic bath to remove soap and grease and rinsed in water. The coating may be applied by immersing the electrode wire in a hot bath containing a slightly supersaturated water solution of the acetate formed into a thin paste with the other ingredients added in powder form. The coating may also be effected by inserting a number of the electrodes in a perforated cylinder of slightly larger diameter which is carried by an endless belt conveyer through the hot coating solution and then through a drying chamber. Specification 167,399 is referred to.
Patent GB-403326-A (GB)
Title: Safety device for pockets of trousers or other garments
IPC: A41D27/20
Filed: 1933-07-22
Abstract: 403,326. Retaining articles in pockets. CARADINE, R. E., 65, Barton Road, Cambridge. July 22, 1933, Nos. 20687 and 20688. [Class 43.] In safety devices for the pockets of trousers or other garments, the pocket is adapted to be constricted by a rubber or elastic band passed around the outside of the pocket through loops A, A<1>, attached about half way up the length of the pocket. The band may be a strip in length about equal to the width of the pocket. One end of the strip carrying a press-stud part F may be sewn to the pocket ; the strip is then passed through the loops and a complementary fastening part at its free end engaged with the part F. Alternatively, the band may be endless and the loops may be fixed at their lower ends only and carry press studs at their upper ends for detachable connection with the pocket.
Patent GB-221500-A (GB)
Title: Improvements in or relating to the heating of boiler feed water
IPC: F22D1/32
Filed: 1924-09-02
Abstract: 221,500. Siemens - Schuckertwerke Ges. Sept. 4, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Feed-water, heating. - A feed-water heater 9 heated by steam taker. from the stages of a turbine 3 serves as a hot-water storage chamber or is so connected to a separate hot-water storage chember 19 that water withdrawn from the bottom of the chamber is heated in the heater and returned to the top of the c h a m b e r. The heater may be further heated by live steam taken from the steam supply pipe 2 through a pipe 5. Valves 25 - - 28 controlling the supply of steam to the heating coils 15 - - 18 in the heater are so operated by the live steam pressure that when the pressure falls, the valves close, and when the pressure rises, the valves open. The operation of a pump 32 in the bottom connection of the heater and storage chamber is so controlled by the live steam pressure that the supply of water to the heater from the chamber increases as the steam pressure rises. Water of condensation from the heating coils is supplied to the heater by a pump 12.
Patent GB-665202-A (GB)
Title: Improvements relating to terminations and joints for electric cables and to artificial resins adapted for use therein
IPC: H02G15/00
Filed: 1948-08-05
Abstract: A dielectric for cable insulation, particularly for terminations and joints, is obtained by causing a liquid polyester formed from an unsaturated alcohol containing up to 10 carbon atoms and an acid such as oxalic, citric, titanic or adipic, to copolymerize with styrene at room temperature in a suitable mould in the presence of a catalyst, preferably benzoyl peroxide. Fillers, such as mica and titanium dioxide, or an accelerator or oxidation inhibitor such as a solution of cobalt naphthenate, may be added.