baber/WOPTO huggingface dataset:
Patent GB-645775-A (GB)
Title: Liquid fuel combustion chamber
IPC: F23R3/32
Filed: 1948-07-31
Abstract: 645,775. Generating combustion products under pressure. ARMSTRONG SIDDELEY MOTORS, Ltd., ALLEN, S., and STOKES, M. A. July 31, 1948, No. 20431. [Class 51(i)] A combustion chamber for a gas turbine and of the type comprising a flame tube surrounded by an annular passage containing diluent air has a shielded region outside and upstream of the flame tube in which the air is comparatively static. For starting purposes this region communicates with an auxiliary fuel spray device, independent of the main fuel supply, most of the burning mixture from the auxiliary spray passing into the flame chamber mixed with secondary air. The combustion chamber shown, Fig. 3, comprises an external casing 14 and an inner casing built up of a plurality of radially spaced axially overlapping rings 15, 16 and 17. The inlet end of each inner casing is closed by a baffle 19 having four openings in which are fixed the inlet ends of J-pipes 20 into which the main fuel supply is injected through pipes 22. Cup-like members 24, each having a diametrical slit, supply secondary air to the inner casing. A casing 31, extending forwardly from the inner casing, is provided with a re-entrant flange 32 which forms a sheltered region 34 in which the air is relatively static in all conditions. Into this region projects a torch igniter comprising a sparking plug 37 and an auxiliary fuel spray device 38 or the auxiliary fuel spray device 39, Fig. 5. When a number of combustion chambers are arranged around an axis, the corresponding regions 34 are connected by passages 40 and at least one of the regions is fitted with a torch igniter, the remaining regions being fitted with auxiliary fuel spray devices. The invention is also described with reference to an annular flame tube surrounded by annular passages carrying the diluent air. In this arrangement a single annular sheltered region 34 is provided into which a number of angularly spaced auxiliary fuel devices 38 project at least one of which is associated with a sparking plug. In both cases arrangements are made to supply fuel to the auxiliary spray devices at a relatively high pressure, and automatic means such as a time switch, a centrifugal switch or a heatresponsive switch provided to cut off this fuel supply when the turbine has started. Specifications 603,485, 619,353, 623,531 and 624,239 are referred to.
Patent GB-1400109-A (GB)
Title: Chains
IPC: B23Q1/00
Filed: 1973-04-30
Abstract: 1400109 Chains G MAURI 30 April 1973 [27 Sept 1972] 20444/73 Heading F2Q A chain for supporting power transmission cables or hoses comprises link elements of plastics material arranged in two sets interconnected by crosspieces 29 for supporting the cables or hoses, the elements in each set being serially connected by joints each of which comprises a male portion 8 on one element received by and hinged to a female portion 16 on an adjacent element. Relative angular displacement between adjacent elements is limited by fins 18, 19 on one element engaging shoulders 13, 14 on an adjacent element.
Patent GB-185599-A (GB)
Title: Interlocking devices for electric switches
IPC: H01R13/707
Filed: 1921-07-30
Abstract: 185,599. Brothers, E. J., and Tucker &. Co., Ltd., J. H. July 30, 1921. Addition to 164,451. Plug couplings and connectors combined with electric switches.- In interlocking device.s between electric switches and plug-and-socket couplings of the type described in the parent Specification, the pin f carried by the plug is so shaped as to prevent its withdrawal until the switch has been opened, the tube h in the socket member being provided with a stationary abutment ! i apainst which the nose k of the switch detent e is forced in an attempt to remove the plug g before opening the switch. The hooked end j of the pin f and the end k of the pivoted detent e .are both slightly overhung so that an endeavour to extract the plus;, Fig. 2, only forces the detsut fairt-her into the tube h and more firmly into engagement with the abutment i. A slot m is provided at the lower end of the tube h to prevent closure of the switch before the plug i& inserted, and a further slot n may be provided to prevent, closure of the switch when the plug is only partially inserted. When the plug is fully inserted, Fig. 2, the'switch may be opened and closed by hand, the nose k of the detent e riding along the face of the pin f. In order to prevent closure of the switch when the plug is inserted until the recess registers with the abutment i, a second recess o may be provided in the pin f', Figs. 3 iand 4. When the plug is in this position, if an attempt is made to close the switch the detent e is engaged by the lower recess o before the switch is fully closed. The detent e may now be redeased and the switch fully closed by forcing the plug home, when the nose k of the detent rides over the abutment i<1> into the position shown in Fig. 4.
Patent GB-1133032-A (GB)
Title: Broadband variable delay line
IPC: H03H9/125
Filed: 1966-05-09
Abstract: 1,133,032. Delay lines. TELEDYNE Inc. 9 May, 1966 [7 May, 1965], No. 20479/66. Heading H3U. A broad band microwave variable delay apparatus comprises a member 11 of a single crystal ferrimagnetic material, e.g. yttrium iron-garnet, for propagating spin and acoustic waves. The input assembly 12 comprises a coil 13 and a permanent magnet 15 producing a magnetic field orthogonal to the microwave field produced by the coil 13. The output assembly 16 is movable along the member 11 to vary the delay and similarly comprises a coil 17 and magnet 19. The field produced by the magnets 15, 19 has a steep step configuration (Fig. 1A, not shown) so that spin waves generated in the member 11 by the interaction of coil 13 and magnet 15 are almost immediately converted into acoustic waves as they begin to propagate along the member, these acoustic waves being converted in the reverse order at the output assembly 16 to produce a signal in the coil 17. In a modification (Fig. 2, not shown) the input signal produces acoustic waves directly in the ferrimagnetic member (21) by means of a compressional or shear wave transducer (23). In another modification (Fig. 3, not shown), the permanent magnets are replaced by electromagnets (35, 39). According to a further modification (Fig. 5, not shown), instead of mechanically moving the output assembly the variable delay is obtained by making the output electromagnet (59) of a plurality of separate adjacent laminations (61a . . . 61o) energized by individual coils (62a . . . 62o), these coils being selectively switched to provide a magnetic field at a desired position along the ferrimagnetic member (51).
Patent GB-257275-A (GB)
Title: Improved process for the manufacture of esters of isoborneol and borneol
IPC: C07C35/30
Filed: 1926-03-12
Abstract: 257,275. Chemische Fabrik auf Actien, vorm. E. Schering. April 11, 1925, [Convention date]. Esters of isoborneol and borneol are obtained by the action of fatty acids such as formic acid on camphene at room temperature using considerable excess of fatty acid. The acid is preferably used in an anhydrous condition.
Patent GB-777898-A (GB)
Title: Improvements in or relating to steam or hot water boilers for central heating installations
IPC: F24H1/40
Filed: 1955-07-15
Abstract: 777,898. Solid fuel-fired boilers. OMNICAL GES. FUR KESSEL-UND APPARATEBAU GES. July 15, 1955 [Feb. 3, 1955], No. 20526/55. Class 51 (1). [Also in Group XIII] A steam or hot-water boiler for a central heating installation comprises a central fuel charging shaft 1, a saddle grate 2 below the shaft and rising and falling flues 3, 4 disposed on each side thereof, the flues 3, 4 on each side being separated by a common wall formed of vertical riser tubes 5 arranged in contact. The front, rear and inner walls of each flue 3 which together constitute the combustion spaces of the boiler are also formed of contacting riser tubes 5, 7. Economizers 8 are disposed in each of the falling flues 4, from which cool furnace gases discharge into ducts 14 leading to the boiler stack. The saddle grate 2 is cooled by inclined, spaced water-tubes 16 which extend between lower headers 18 and an upper header 17. Cast-iron bars 16a having sides grooved to fit against the tubes 16 are wedged into the spaces between the tubes to form the grate surface proper, the fuel layer on each side of the grate being supported by rollers 20 provided with teeth 20a. When the temperature of the layers a short distance above the rollers drops to a predetermined level, the rollers are set in motion manually or automatically so that slag and ash are removed, the larger pieces being crushed, and drop into ash trucks 21. The rollers are stopped when the sliding fuel bed causes the temperature to rise above the said level. To release fine ash from the gaps in the grate a shaker 22 is arranged at one end of the boiler to vibrate the grate at, for example, 2000 vibrations per minute, the ash falling on to roofshaped surfaces 23 and thence into the trucks 21. The boiler output is regulated by means of a diaphragm device responsive to variations in steam pressure and actuating a valve controlling the flow of combustion air to the grate or actuating flue gas outlet valves.
Patent GB-480781-A (GB)
Title: Improvements in the manufacture and production of acetylene from hydrocarbons containing more than two carbon atoms in the molecule
IPC: C07C4/02
Filed: 1936-07-24
Abstract: Acetylene is produced from hydrocarbons containing more than two carbon atoms in the molecule by leading an inert carrier gas through an electric arc, and adding the hydrocarbons to the gas both before and immediately behind the arc.  The hydrocarbons added before the arc may be gaseous, vaporized or liquid, but they must not be in the liquid state when they reach the arc.  The hydrocarbons added behind the arc are preferably liquid and in a finely divided form, and they are so supplied that they mix with the arc gases but do not enter the arc itself.  The carrier gas may be hydrogen or carbon monoxide or mixtures containing them, with or without lower hydrocarbons such as methane.  The hydrocarbons added behind the arc may be centrifuged to separate carbon black and then used again.  The gas remaining after acetylene has been separated may be returned for use as the carrier gas after removing from the gas a portion corresponding to the increase in volume in the arc.  The addition of hydrocarbons before the arc is preferably adjusted so that the expenditure of energy for the formation of acetylene no longer decreases when the supply of hydrocarbons is further increased. In the examples:  (1) propane is added to a stream of illuminating gas which is passed through an electric arc, and the gases leaving the arc are quenched with gas oil; a gas containing olefines and 19,4 per cent of acetylene and its homologues is obtained; (2) illuminating gas preheated to 350 DEG  C. is passed through an electric arc after addition of gas oil, which is vaporized before it reaches the arc; the gases leaving the arc are quenched with the same gas oil, a gas containing olefines and 18,4 per cent of acetylene and its homologues being obtained; the oil used for quenching is recirculated, a part being supplied before the arc and fresh oil being added at any suitable place in the cycle; the gas containing acetylene is worked up in an acetaldehyde plant, and an appropriate portion of the residual gas is returned for use as carrier gas.  U.S.A. Specification 1,887,658 is referred to.
Patent GB-390383-A (GB)
Title: Improvements in or relating to systems for the electrical transmission or recording and reproduction of sound
IPC: H03G3/20
Filed: 1932-07-20
Abstract: 390,383. Transmitting music &c. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. July 20, 1932, No. 20551. Convention date, July 20, 1931. [Class 40 (iv).] In a system wherein transmission conditions, e.g. noise and load capacity of amplifiers &c. necessitate volume limitation or compression at some point and corresponding restoration before reproduction, the extent of the limitation &c., which may be manually or automatically controlled, is signalled to the restoring device by frequency changes in pilot control current. The system may include a wireless or gramophone &c. link and the control may be effected by ordinary alternating currents or impulses of variable frequency or variable modulation of a current. In the system shown in Fig. 2, the gain of amplifier V2 is controlled by the output of rectifier G1 which depends on the amplitude of the output of amplifier V1. The output from G1 also controls the frequency of an oscillator O, and the outputs from V2, O after passing through suitable filters F1, F3 are transmitted by S and received by E, and after separating by filters F2, F4 pass to rectifier G2 and amplifier V3 the gain of which is controlled by the output of G2 dependent on the frequency of the control current. Delay networks may be used in known manner. The control frequencies lie above or below the speech range and in the case of line transmission may be sent over the speech path or over a separate path. In wireless transmission the same or different carriers may be used. In recording and reproducing systems the control frequencies are recorded in a separate trace. If the amplitude of the control curtent is subject to. variations e.g. with the frequency, due to damping in the transmission channel, means may be provided to maintain a constant amplitude. This may however be avoided by regulating the gain of V3 in accordance with the ratio of a voltage dependent on the frequency and a voltage dependent on the amplitude of the control current. The control arrangements at the transmitting end may be as shown in Fig. 3, where K1 is the input to rectifier G1 and K2 its output to the amplifier V2. The oscillatorcomprises a back coupled triode R1 with inductances wound on a common core of a transformer T, the inductances, and therefore the frequency,. being varied in accordance with the magnetization of the core effected by winding W connected to the output of G1. The control current is supplied by winding W2. At the receiving end, the control current is amplified at R2, Fig. 4, and fed to a transformer U2 the secondary of which forms a resonant circuit with capacity C2, the resonant frequency lying at the upper or lower end of the range of control frequencies so that current amplitudewill increase, or decrease with increase or decrease of frequency. The current is rectified by D and used to control amplifier V3.
Patent GB-195319-A (GB)
Title: Resistance devices
IPC: H01C3/10
Filed: 1922-07-27
Abstract: 195,319. Ward Leonard Electric Co., (Assignees of Waller, A. E.). March 28, 1922, [Convention date]. - Resistances, self-supporting. - A series of copper, brass, iron, or other conducting strips 15 are attached to a base 14, resistance elements 1<a> - - 1<e> being supported upon and connected between adjacent strips in displaced positions so as to facilitate dissipation of heat. The resistance elements are formed of thin metal ribbon ribbed or bent into channel form at the main portions 10, Fig. 2, and having flat portions at the ends and at the centre 11. where the element is bent into V form. The flat-end portions are bent to engage the strips 15 and are clamped thereto bv nuts 18 and rectangular washers 17 so that the resistance elements stand out in planes at rightangles to the base 14. Contact segments on the opposite side of the base are connected to the inner ends of the strips 15 by bolts 16, which may also secure the resistance strips 1<a>, 1<d> that are attached to the inner ends of the strips. These segments may be arranged in a straight line or in the arc of a circle, and may be arranged on the same side of the base as the resistance elements.
Patent GB-630342-A (GB)
Title: Improvements relating to the spindles of yarn twisting machines
IPC: D01H7/22
Filed: 1947-07-30
Abstract: 630,342. Yarn-twisting spindles. ARUNDEL, COULTHARD & CO., Ltd., and PILKINGTON, F. July 30, 1947, No. 20590. [Class 120 (ii)] In a yarn uptwister or like machine in which the spindles are of the swing type and are driven by an endless belt, means being provided for swinging each spindle clear of the driving belt and for braking the spindle, the spindle a is journalled in the bolster b carried in the swinging bracket c which can turn about a spindle d in the spindle rail bracket e against or with the pressure of the torsion spring f. A link g is pivoted at one end to a stud h secured in the bracket e and at the other end to one end of a lever j which is fulcrummed atk to the swinging bracket c. Beyond the fulcrum point a brake pad m is secured to the lever and a knob t is provided at the further end. In the operative position (Fig. 3) the link g and lever are folded over one another and spring f keeps the spindle wharve n in driving contact with the belt o. In the inoperative position (Figs. 2 and 4) the pivot p of the link g and lever j is pulled, by means of the knob t to a point slightly beyond a line joining the axes of hand k, so that the pressure of the torsion spring f acts to keep the link g and lever j in the open position and the brake pad m in contact with the spindle wharve n.
Patent GB-865140-A (GB)
Title: Optical inspection device
IPC: G02B23/24
Filed: 1959-06-16
Abstract: 865,140. Optical apparatus; pyrometers. CANADIAN PATENTS & DEVELOPMENT Ltd. June 16,1959 [June 16, 1958], No. 20628/59. Classes 97(1) and 97(3) An inspection device includes a first tubular member which converges axially towards one end of the member to provide a pinhole inlet to the interior of the member for light, a second tubular member surrounding and spaced from the wall of the first tubular member and converging axially towards that end of the second tubular member which is adjacent the convergent end of the first tubular member for the first and second members in combination to define an annular space, means for supplying gaseous fluid under pressure to said annular space, and means constraining said fluid to flow from said annular space through an outlet provided by the convergent ends of the first and second members and surrounding the inlet provided by the first member. As shown in Fig. 2, the device comprises a tube 21 having a frusto-conical end cap 23 terminating in a pinhole 24 for the entry of light to a lens 35 and prism 36 which deflects the light down to an objective 37, the lens 35 being mounted in a ring 38 provided with axial grooves 39 (Fig. 3). Surrounding the tube 21 so as to define an annular space 30 is a second tube 26 also having a frusto-conical end cap 28. The two tubes are independently mounted by brackets 40 and 41 on a platform 42 and a resilient bellows 44 ensures that vibrations of the outer tube are not transmitted to the inner tube 21. A pipe 46 feeds compressed air through the tube 21 so as to maintain it cool and to keep the pinhole opening 24 clear. Compressed air is also fed by a pipe 45 into the annular space 30 so as to provide further cooling and to keep the outlet 31 clear. The cap 28 is sprayed with water from jets at the end of a pipe 33 and the outer part of tube 26 may be similarly sprayed by jets of water 33a. The device is intended for use in inspecting a body which is positioned in, or comprises a stream of hot gaseous fluid and is particularly adapted for use in enabling a flame in an afterburner structure of an aircraft gas turbine engine to be observed whilst the engine is operating in a test cell. The device may also be used in conjunction with measuring instruments to provide an optical pyrometer for remotely measuring the temperature of an incandescent or light emitting solid or gaseous mass.
Patent GB-240615-A (GB)
Title: A new or improved lifting jack
IPC: B66F3/08
Filed: 1924-09-02
Abstract: 240,615. Shelley, Ltd., R. T., and Stafford, G. A. Sept. 2, 1924. Jacks.-To obtain sufficient range for use with cars having large low-pressure tyres, a screw-jack is constructed so that the central spindle is guided in a part c of the body extending upwards through the nut j. The body comprises a cylindrical part c, c<1> forming a housing for the. spindle f, and two or more lateral enlargements a receiving longitudinal ribs g on the spindle. A square thread h is cut on these ribs which project through slots in the upper cylindrical part c of the body. the nut j fits over the part c and rests upon an annular shoulder on the part c<1>. The lift is limited by a transverse pin n passing through the spindle f and moving in recesses o which terminate suitably below the top of the body. The crutch p may be mounted on a rod q which may be set at different heights in the spindle f.
Patent GB-735972-A (GB)
Title: Surgical dressings
IPC: A61F13/02
Filed: 1953-07-24
Abstract: 735,972. Adhesive surgical dressings. JOHNSON & JOHNSON. July 24, 1953 [July 29, 1952], No. 20649/53. Class 81 (2). A method of making adhesive bandages having a backing of readily stretchable sheet material comprises supporting a web of such sheet material on a substantially unstretchable carrier sheet, the opposite surface of the web being covered with an adhesive coating, placing dressing material on a portion of this surface, placing a substantially unstretchable facing material on the adhesive surface and pressing it into the surface, removing the carrier sheet and cutting the sheet material and facing material to form individual adhesive bandages. Laminate material 5 of a width equal to the length of a completed bandage and consisting of a carrier sheet 11 of paper, such as urea-formaldehyde coated supercalendered kraft, adhering lightly to a sheet of dimensionally unstable material 12 such as a vinyl type plastic, e.g. polyvinyl chloride, and a layer 15 of adhesive, e.g. a rubber base adhesive, covered by a liner paper 16 treated with a silicone polymer is fed from a roll 10 to a guide roll 17 where the liner paper 16 is stripped from it. The laminate then passes to a punching device 21, 22 where vent holes (not shown) are made in the laminate 5 in the region to be occupied by a gauze pad 27. The laminate 5 then passes over a roll 26 and meets a supporting table 28 where pads 27 cut from a continuous strip 30 of gauze are placed transversely on the laminate 5. Two continuous overlapping strips of crinoline 36 are then added to the laminate 5, these strips being pressed into the exposed portions of the adhesive 15 on the laminate 5 by pull rolls 37, 40, the upper pull roll 37 having a recessed centre portion for accommodating the pad 27. The laminate 5 passes round the lower pull roll 40 where the carrier sheet 11 is removed and wound on a roll 41. After passing over a further roll 42, the laminate passes between metering rolls 45, 46 which feed it at a uniform rate to a cutting unit 47 which severs it transversely into individual adhesive bandages. In a modification (not shown) the gauze pads are fed on to the laminate in the direction of travel of the laminate and crinoline is provided from a simple sheet cut into portions which are applied to the laminate so that they overlap at the centre of each gauze pad, the laminate finally being cut into individual bandages having the same width as the laminate. In a further modification (not shown) a laminate consisting of a dimensionally unstable web having a pressure-sensitive adhesive surface is laid on a perforated conveyer belt the laminate being maintained in a dimensionally stable condition by suction produced by a vacuum box over which the conveyer belt passes while the gauze pads and crinoline are applied. The laminate is removed from the conveyer belt by a stripper roll before being cut into individual bandages.