baber/WOPTO huggingface dataset:
Patent GB-167194-A (GB)
Title: Improvements in or relating to valves for hydraulic apparatus
IPC: F16F9/14
Filed: 1919-06-02
Abstract: 167,194. Houdaille, M. June 2, 1919. Dash-pots.-A check valve constructed so that when the valve is seated to prevent the flow of liquid it still allows air or gas to pass is applied to hydraulic shock-absorbers of the kind comprising a pair of ported vanes f, f<1> mounted on a spindle e and adapted to work in upper and lower compartments b, b<1> formed in a casing a by horizontal partitions. Communication is established between the two compartments through ports e<11> in the spindle, and each compartment communicates with a filling reservoir g through loose ball valves l, j. The valve seat for the valve l has bye-pass passages m of such dimensions as to permit air to pass while preventing the passage of liquid. Auxiliary devices may be provided, actuated manually or automatically, to vary the area of these passages.
Patent GB-1049190-A (GB)
Title: Stable solutions of peroxybenzoic acids
IPC: D06L3/02
Filed: 1965-04-02
Abstract: A stable aqueous composition suitable for bleaching and sterilizing textile materials comprises peroxybenzoic acid or a substituted peroxybenzoic acid which does not contain groups which can be oxidized by peroxybenzoic acids, dissolved in a mixed solvent comprising water and tert-butyl alcohol in which the tert-butyl alcohol is present in a weight ratio relative to the water of up to 1 : 1 and in an amount sufficient to dissolve and stabilize the peroxy acid to form a homogenous solution.  The solution may contain up to 12% by weight of the peroxybenzoic acid.  The substituted peroxybenzoic acid may be o-, m- or p-chloroperoxybenzoic acid, p-tertiary butyl peroxybenzoic acid or p-methoxy peroxybenzoic acid. Impurities which cause decomposition of the peroxybenzoic acids or which can be oxidized by these acids, e.g. heavy metals, may be removed by distilling the tert-butyl alcohol in glass or glass-lined equipment or by the addition of about 100 p.p.m. of a metal chelating agent, e.g. dipicolinic acid.ALSO:A stable aqueous composition suitable for sterilizing textile materials, e.g. cotton, comprises peroxybenzoic acid or a substituted peroxybenzoic acid which does not contain groups which can be oxidized by peroxybenzoic acids, dissolved in a mixed solvent comprising water and tert-butyl alcohol in which the tert-butyl alcohol is present in a weight ratio relative to the water of up to 1:1 and in an amount sufficient to dissolve and stabilize the peroxy acid to form a homogenous solution.  The solution may contain up to 12% by weight of the peroxy-benzoic acid. The substituted peroxybenzoic acid may be o, m or p-chloroperoxybenzoic acid, p-tertiary butyl peroxybenzoic acid or p-methoxy peroxybenzoic acid.  Impurities which cause decomposition of the peroxybenzoic acids or which can be oxidized by these acids, e.g. heavy metals, may be removed by distilling the tert-butyl alcohol in glass or glass-lined equipment or by the addition of about 100 ppm of a metal chelating agent, e.g. dipicolinic acid.ALSO:Textile materials, e.g. cotton, are bleached by treating them with a stable aqueous composition comprising peroxybenzoic acid or a substituted peroxybenzoic acid which does not contain groups which can be oxidized by peroxybenzoic acids, dissolved in a mixed solvent comprising water and tert-butyl alcohol in which the tert-butyl alcohol is present in a weight ratio relative to the water of up to 1:1 and in an amount sufficient to dissolve and stabilize the peroxy acid to form a homogenous solution.  The solution may contain up to 12% by weight of the peroxy-benzoic acid.  The substituted peroxybenzoic acid may be o, m or p-chloroperoxybenzoic acid, p-tertiary butyl peroxybenzoic acid or p-methoxy peroxybenzoic acid.  Impurities which cause decomposition of the peroxybenzoic acids or which can be oxidized by these acids, e.g. heavy metals, may be removed by distilling the tert-butyl alcohol in glass or glass-lined equipment or by the addition of about 100 ppm of a metal chelating agent, e.g. dipicolinic acid.
Patent GB-1425301-A (GB)
Title: Pulse generating circuit
IPC: H03K3/537
Filed: 1974-03-29
Abstract: 1425301 Ignition systems MULLARD Ltd 29 March 1974 13996/74 Heading F1B [Also in Division H3] A pulse generator more particularly for the igniter of a gas cigarette lighter, comprises an oscillator having an output transformer with a secondary winding connected via a diode D3 to charge a capacitor C which is arranged to be discharged through the primary winding of a second transformer L5 to produce a pulse, the discharge path including the secondary winding L3 of said output transformer. By including this winding the peak discharge curve is reduced and the output pulse lengthened. Throwing the switch to position 1 causes the oscillator to operate and charge the capacitor. Restoring it to position 2 causes the discharge and thus a spark at SG.
Patent GB-593548-A (GB)
Title: Improvements in or relating to tools for removing bungs from casks
IPC: B67B7/42
Filed: 1945-06-04
Abstract: 593,548. Bung removers. FRENCH F. W. W. June 4, 1945, No. 14014. [Class 125 (ii)] [Also in Group XXIII] A device for removing bungs from casks comprises a tubular cross-handle 1 closed at one end by a plug adapted to be used as a hammer. At the opposite end, the tube is flattened to form s chisel-shaped end. An outer member or stem 4 of a telescopic shank is welded to the handle 1, the lower end of which is fitted with a screw-cap 5. In the stem 4 is a rod 6 of square-crosssection which slides through a similar hole in the screw cap 5. The inner end of the rod 6 is provided with an enlarged head 8 which prevents it from coming through the screw-cap. The lower end of this rod has a hole to receive the spigot 9 of an exchangeable screw threaded end piece 7. This hole may be screw threaded &c. In use the end piece 7 is screwed into the bung and by means of a sudden pull or. the cross handle 1, the rod is made to extend and an upward blow is. delivered to the bung, which may at once remove it, or which can be repeated until the bung leaves the cask.
Patent GB-1067061-A (GB)
Title: Noise generator
Inventor: JUTASI ISTVAN
IPC: H03B29/00
Filed: 1964-04-06
Abstract: 1,067,061. Noise generators. BUDAVOX BUDAPESTI HIRADASTECHNIKAI VALLALAT. April 6, 1964, No. 14046/64. Heading H3B. A plurality of incoherent noise spectra are derived from a single white noise amplifier by modulating the output from the amplifier with a plurality of different auxiliary frequencies to produce a plurality of independent audible noise outputs. The output of the amplifier is arranged to lie outside the frequency range at which " flicker noise " is present, i.e. below 1 kc/s., and preferably has a frequency of at least 8 kc/s. In a first embodiment the amplifier output is split by a band filter stage into three frequency bands: 12À1 to 16 kc/s., 16À1 to 20 kc/s. and 20À1 to 24 kc/s., and these bands are modulated at respectively 12, 16 and 20 kc/s. to produce audible noise of 0À1 to 4 kc/s. in each channel. The noise outputs are supplied to individual amplifiers, optionally by way of individual filters. In a modified arrangement the whole frequency spectrum from the original noise amplifier is supplied to each channel by way of a hybrid circuit and is modulated at a different frequency in each channel. It is stated that the amplifier noise spectrum should in this case be extended down to 8 kc/s. to prevent undesirable effects due to superimposition of the upper and lower sidebands. The arrangement may be used to test cross-talk in communication channels.
Patent GB-218268-A (GB)
IPC: F04D29/58
Filed: 1924-06-10
Abstract: 218,268. Armaturen-& Maschinenfabrik Akt.-Ges. vorm. J. A. Hilpert. June 30, 1923, [Convention date]. Cooling and heating parts.-A centrifugal pump for extinguishing fire is driven by an internal combustion engine and means for cooling the water of the engine are associated with the pump. Each end of the pump casing has an annular chamber d subdivided into segments by radial ribs c. The segments of one end are displaced half the length of a segment relative to those at the other end. The segments of the two annular chambers are connected by the tubular channels which contain the bolts securing the casing. The water from the engine enters the segments d<1> through the tube socket a at the rear of the pump, thence through the channels 1, 1<a> to segments -at the front of the pump and through channels 2, 2<a> to the back again. This action is repeated until the water arrives at the socket b connected to the cooling jacket of the motor casing, and the water is cooled during its passage by the pump water. Instead of the water flowing through the bolt channels it may flow through tubular tie-bolts.
Patent GB-360879-A (GB)
Title: Improvements in or relating to devices for controlling the speed of a motor
IPC: G11B19/28
Filed: 1930-05-07
Abstract: 360,879. Electromagnetic brakes. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13A, Emmasingel, Eindhoven, Holland. May 7, 1930, No. 14065. Convention date, May 30, 1929. Void [Published under Sect. 91 of the Acts]. [Class 103 (i).] A device for maintaining constant the speed of a motor wherein magnets 3 are mounted to move helicoidallv on spindle 4 and attached by pin 8 to a spiral spring 7, the other end of the spring being secured to a sleeve 9 adjusted by the worm 11 and the worm wheel 10. The rotor 1 is provided with a copper ring 6 and the braking torque and the spring reaction adjusts the distance of the magnets from the rotor to maintain a constant speed. Alternatively the magnets 3 may consist of polepieces mounted partly around the circumference of a disc inclined to the rotor, or a magnet may be mounted on the end of a spring-controlled lever pivoted eccentrically about the shaft 5.
Patent GB-728755-A (GB)
Title: Improvements relating to the catalytic desulphurisation of benzole and motor fuels containing same
IPC: C10G45/24
Filed: 1952-06-05
Abstract: Benzole or motor fuel consisting of a mixture of benzole and straight-run petroleum gasoline is catalytically desulphurized by passing in vapour form, in admixture with hydrogen, over a dehydrogenation-hydrogenation catalyst, at a temperature and pressure such that the dehydrogenation of naphthenes in the benzole or fuel is effected to an extent not in excess of that required to produce sufficient hydrogen to convert the organically combined sulphur in the benzole or fuel into hydrogen sulphide and to maintain the vapour phase in the reaction zone.  A hydrogen-rich gas is separated from the treated feedstock and recycled to the reaction zone as the sole source of hydrogen thereto.  The process may be carried out at a temperature of 780-800 DEG  F. and a pressure of 100 p.s.i. using cobalt and molybdenum oxides on alumina as catalyst.  Specifications 654,152, 663,038, 669,536, 669,551, 669,552, 669,553 and 697,083, [all in Group III], are referred to.ALSO:Benzole or motor fuel consisting of a mixture of benzole and straight-run petroleum gasoline is catalytically desuphurized by passing in vapour form, in admixture with hydrogen, over a dehydrogenation-hydrogenation catalyst, at a temperature and pressure such that the dehydrogenation of naphthenes in the benzole or fuel is effected to an extent not in excess of that required to produce sufficient hydrogen to convert the organically combined sulphur in the benzole or fuel into hydrogen sulphide and to maintain the vapour phase in the reaction zone.  A hydrogen-rich gas is separated from the treated feedstock and recycled to the reaction zone as the sole source of hydrogen thereto. The process may be carried out at a temperature of 750-800 DEG  F. and a pressure of 100 p.s.i. using cobalt and molybdenum oxides or alumina as catalyst.  Specifications 654,152, 663,038, 669,536, 669,551, 669,552, 669,553 and 697,083 are referred to.
Patent GB-460690-A (GB)
Title: Improvements in and relating to electrical apparatus for graphically demonstrating transient electrical wave forms
IPC: G01R13/04
Filed: 1936-05-19
Abstract: 460,690. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.) May 19, 1936, No. 14213. [Class 40 (v)] [Also in Group XXXVI] A surge generator circuit is coupled to the time-base circuit of an oscillograph by means of a discharge tube having a control electrode, whereby the surge is initiated whenever a charging current is initiated in a condenser forming part of the time-base circuit. By this means repeated surges may be applied to a circuit to be tested, the surges being synchronized with the timing motion of the beam of the oscillograph so as to retrace the curve and produce a brilliant image of the transient wave shape. The apparatus consists of a condenser 11 having a surge discharge circuit including the inductance 12 and resistances 13, 14. A. cathode ray, electron beam or other type of oscillograph may be employed, and the deflection may be produced electromagnetically or by electrostatic plates 16, 17 arranged at right angles. The plates 16 for producing the time sweep are connected across a condenser 15 which is charged through a resistance 25 and a valve 24 from a transformer 21. The valve 24 is preferably of the type which is triggered off when a suitable potential is applied to the plate and remains conducting as long as sufficient voltage remains between plate and cathode. The grid 26 is suitably biassed from a source 29 and the valve remains nonconducting until the voltage of the secondary winding 22 reaches approximately its peak positive valve, so that the condenser 15 is charged once in every cycle of the A.C. supply and moves the cathode ray beam correspondingly across the screen of the oscillograph. The condenser 15 is discharged through a resistance 31, the value of which is such that the return is slower than the forward movement whereby a zero line is traced on the screen. The condenser 11 is connected to the transformer winding 22 through a rectifier 32, and a valve 33, similar to the valve 24, is interposed in the discharge circuit of the condenser in series with the impedances 12, 13, 14. A second valve 38, connected oppositely with respect to the electrodes of the valve 33, is provided and operates when the discharge circuit is oscillatory. The valve 33 is tripped in synchronism with the sweeping of the cathode-ray beam along its timing axis by connecting the grid 34 to the cathode of the valve 24 through a condenser 44, so that, as soon as the valve 24 commences to conduct, a positive impulse is applied to the grid 34 to cause the valve 33 to light up. The condenser 11 discharges through the valve 33 and impedances 12, 13, 14, and the wave form is observed by connecting the deflector plates 17 of the oscillograph across the resistance 48 which is in parallel with a condenser 47 across the resistance 14.
Patent GB-265538-A (GB)
Title: Improvements in loud speakers
IPC: H04R7/12
Filed: 1926-06-07
Abstract: 265,538. American Bosch Magneto Corporation, and Hopkins Corporation, (Assignees of Bartsch, A. H.). Feb. 5, 1926, [Convention date]. Loud-speakers; diaphragms. -A large conical diaphragm for use in a loud-speaker is made wholly or in part of one or more layers of thin wood. Japanese wood veneer, consisting of thin sheets of wood cemented to a tissue paper backing, is preferably used, and is glued to a fibrous support such as a sheet of manilla or kraft paper. One or more layers of the veneer are attached to one or both sides of the paperr, and the composite sheet produced is formed into a cone preferably by cutting a sector and uniting the radial edges by glueing, stitching &c. Several variations in the manner of building up the diaphragm are shown. For example, Figs. 6 and 6a show the attachment of two layers of Japanese veneer (each comprising a sheet 9 of thin wood and a layer of tissue paper 9<1>) to a single sheet 8 of paper on the same side thereof. Figs. 7 and 7a show another example, in which a sheet 8 of paper has two layers of veneer attached, one on each side. Where there are two or more wooden sheets in the built-up diaphragm, the grain of one sheet preferably runs at right angles to that of an adjacent sheet. The outer layer of veneer may be stained and coated with wax. The application of the diaphragm to a loud-speaker is shown in Fig. 4, the diaphragm being circumferentially creased at 11 to form a forwardly flaring brim 12, which is cemented to an offset brim portion 13 of a sheet metal member 2. The part 2 has a central aperture closed by a plate 5 which carries the electromagnetic mechanism.
Patent GB-300478-A (GB)
Title: Improvements in or relating to ejector liquid heating apparatus particularly applicable to hot water circulating systems
IPC: F04F5/48
Filed: 1928-05-15
Abstract: 300,478. Holden & Brooke, Ltd., and Brooke, R. W. May 15, 1928. Heating liquids.-Liquid heating apparatus comprises a steam-jet circulator of multi-concentric cone type with which is combined valve means adapted to supply steam to different parts of the circulator. In the example a valve 12 is movable axially and according to its position, shuts off steam entirely as shown, aliows steam to pass over valve-seat 13, through ports 15, 16 to the central cone 10 only of a tri-cone circulator, allows steam to pass between its lower end and valve seat 14 to the outer cones 21, 22 only, or in its uppermost position additionally opens ports 16 so that the heating effect is at its maximum. Specifications 269,984, [Class 64 (ii), Heating systems &c.], and 285,603 are referred to.
Patent GB-201315-A (GB)
Title: Improvements in coal tongs and the like
IPC: F24B15/10
Filed: 1922-05-20
Abstract: 201,315. James, Ltd., W. & H. H., and James, W. May 20, 1922. Tongs for coal, &c. are formed with arcuate gripping-members integral with the limbs, which a.re preferably formed of strip metal, the gripping-members being formed by partially severing tongues as 7, Fig. 4, and 10, Fig. 1, and bending them out of the plane of the main portion 1 to a substantially arcuate form. Each half of the tongs may be formed wholly from a single strip of metal, as shown in Fig. 1, or in the case of tongs with spring end connections the whole may be formed from one strip of metal.
Patent GB-600839-A (GB)
Title: Production of nuclear methylated phenols from anisole
IPC: C07C37/16
Filed: 1945-06-07
Abstract: Anisole is converted into phenol, mixed cresols and higher methylated phenols, by vapour phase contact at atmospheric pressure and at about 320 DEG  C. with activated alumina as catalyst. A detailed example is given.
Patent GB-145004-A (GB)
Title: Improvements in or relating to wrenches or pliers
IPC: B25B13/12
Filed: 1920-05-26
Abstract: 145,004. Litchfield, I. W. June 17, 1919, [Convention date]. Pliers.-A wrench, which can be converted into pliers, is constructed with relatively movable jaws 4, 7, operated by pivoted handles 21, 2 to grip the work, and fitted with a wedge 12 which can slide on a guide attached to the jaw 4 and is operated by a lower pivoted part 16 of the handle 21, and adapted to operate the wedge so as securely to hold the jaw 7 in gripping position. The jaw 7 moves on a guide 5 on the jaw 4, this guide being formed with a. notch 8 engaged by a flange 9, and the jaw 7 and wedge 12 are normally caused to move together by a connecting- spring 13, but after the jaws grip the work the wedge 12 is raised by the lever 16, the pivot 17 of which engages an elongated slot 19 in the lever. A spring 20 opens the parts when the grip is released, and a pin 15 causes the wedge 12 and the jaw to return together. When used as pliers, the jaw 7 is locked to the wedge by means of a sliding bolt 23, Fig. 4, which may be fitted with the spring 13 which normally causes the jaw and wedge to move together.
Patent GB-852594-A (GB)
Title: Improvements in or relating to control and regulating devices
IPC: B01J3/00
Filed: 1958-05-06
Abstract: <PICT:0852594/III/1> In an automatic controlling and regulating arrangement for an autoclave, the operational state of the autoclave (pressure or vacuum) is transmitted to a working piston, the movement of which is influenced by a counter-force, the working piston initiating in its travel shifting or controlling actions for the automatic operation of the autoclave as regards pressure and vacuum. As shown, an autoclave 1 is equipped with a steam source 2 and a vacuum pump 3, a fresh steam valve 4 and, between the autoclave and the vacuum pump, a vacuum valve 5, the valves 4 and 5 being operated by vacuum and controlled by a slide-valve 8 connected to the vacuum pump, which, with the conduit 7, always keeps vacuum ready on the slide valve for application to the valves 4, 5 the slide valve 8 being shifted for this purpose either by hand or mechanically, in dependence upon certain operational states.  The slide valve 8 is driven by a working and control piston 9, having two separately acting sides 9a and 9b.  The working piston 9a registers all operations in the autoclave, a pressure causing the working piston to extend and impart to the slide valve 8 a thrust which so advances the slide valve that, after the steam has passed through the autoclave, the slide valve moves into the evacuation position.  If the autoclave is set under vacuum, the working piston 9a will experience a contraction and drive the slide valve 8 in the other direction.  The control piston 9b is coupled directly with the working piston 9a and connected with a liquid container 10, so that the control piston 9b is similarly filled with this liquid.  When an expansion is registered in the working piston 9a, liquid passes out of the control piston 9b through a non-return valve 11 into the liquid container 10 and is so braked by a throttle 12 that the shifting of the slide valve 8 can thereby be adjusted in time.  When the working piston 9a is placed under vacuum the control piston 9b experiences an expansion and liquid flows out of the container 10 through a non-return valve 13 into the control piston, a throttle 14 effecting a retardation in time, so that the chronological course of the change-over of the slide valve 8 is influenced by this throttle. Parallel to the vacuum valve 5 there is installed a throttle 16, which holds ready a specific passage cross-section for the passage of a specific quantity of steam, even when the vacuum valve 5 remains closed during the flow of steam.  The autoclave may be used for the catalytic hydrogenation of vegetable oils.
Patent GB-623925-A (GB)
Title: Printing on artificial sponges and products obtained thereby
IPC: B41M1/26
Filed: 1947-05-30
Abstract: 623,925. Printing processes. SPONCEL, Ltd. May 30, 1947, No. 14400. Convention date, July 12, 1945. [Class 100 (ii)] Indelible printed inscriptions or pictures are applied to viscose sponges or other artificial sponges or articles made from artificial sponge material by stencilling, a dye such as one of the compositions sold under the Registered Trade Mark " Rapidogene " being applied from a spray-gun, and the colours developed by an acid treatment, such as steaming in the presence of formic or acetic acid. For stencilling, simple masks, or the silk screen process, may be used.