baber/WOPTO huggingface dataset:
Patent GB-654300-A (GB)
Title: Improvements in and relating to generators for electrical oscillations
Inventor: JOFEH LIONEL
IPC: G01S7/12
Filed: 1947-12-12
Abstract: 654,300. Electric indicating systems. COSSOR, Ltd., A. C., and SPERRY GYROSCOPE CO., Ltd. Dec. 12, 1947, No. 32795. [Class 40 (i)] [Also in Group XL (c)] Relates to plan-position cathode-ray tube displays for pulse radar systems in which a rectangular pulse is applied to the rotor of a rotary transformer, e.g. a magslip, which is rotated synchronously with the directive aerial, the pulse outputs from the perpendicular stators which have amplitudes respectively proportional to the sine and cosine of the displacement angle of the aerial being integrated to produce two trains of sawtooth waveforms which are applied to the orthogonal deflection members of the cathode-ray tube to produce a linear trace rotating synchronously with the aerial. In such systems, owing to leakage inductance and stray capacitance in the rotary transformer, a damped sinusoid 50, Fig. 2 (c), is superimposed on the initial part of the pulse outputs from the stators causing non-linearity in the initial part of the corresponding sawtooth waveforms and according to the present invention this is eliminated by preventing the initial part of the pulses from reaching the integrators. As shown in Fig. 1, a modulator unit 10 generates positive and negative " pre-pulses " 66, 65, Fig. 2 (b), and " zero-time " pulses 60, 59, Fig. 2 (e), the leading edges of the pre-pulses preceding those of the zero-time pulses and the trailing edges of all the pulses being coincident. The zero-time pulses trigger the transmitter 11 to produce a radiated pulse 76, Fig. 2 (h), and the negative pre-pulses are amplified, inverted and limited at 13 and applied through a negative feed-back amplifier 14 to the rotor 15 of a magslip 16. The outputs from the stators 17 and 18 comprise positive or negative pulses, e.g. 49, Fig. 2 (c), with a damped oscillation 50 superimposed on the initial part of the pulse due to leakage inductance and stray capacitance in the magslip. These pulses alternate about earth potential 67 and the base of the pulses is restored to earth potential by double diode clamps 63 and 64 which short the junction of capacitor C and resistor R to earth except for the duration of the pre-pulses b (65 and 66) which block the diodes. The initial portion of the D.C. restored pulses 70, Fig. 2 (d), is suppressed by similar clamping circuits 51 and 52, the diodes of which are blocked by the zerotime pulses e (59 and 60) and the output pulses 61, Fig. 2 (g), are applied to Miller integrators 21, 22, the output sawtooth waveforms 62, Fig. 2 (f), being fed to the deflection members of a cathode-ray tube 23. The centre of rotation of the trace may be offset by gating the sawtooth waveforms.
Patent GB-1315879-A (GB)
Title: Transpiration cooled turbine blade
IPC: F01D5/18
Filed: 1971-07-13
Abstract: 1315879 Turbine blades CURTISS-WRIGHT CORP 13 July 1971 [27 July 1970] 32797/ 71 Heading FIT A gas turbine rotor blade comprises a solid strut 12 integral with root tip and platform portions 13, 14, 22 and having spanwise and chordwise lands 16, 17 defining chambers 18 to which cooling air is supplied through bores 24 in platform 13 the air escaping from chambers 18 through the pores of an overlying sheath 21. The latter may be formed by a sintering process using powdered metal or ceramic, or layers of wound or woven mesh and is welded or brazed to the bands 16, 17. Radially adjacent chambers 18 interconnect via ports 26, 27 in lands 17 ports 27 being of reduced flow area to ensure correct distribution of cooling air. Ports 28 may be provided in lands 16. Bores 24 are either radial or angled (as at 24a, Fig.7 (not shown)) to supply air from one side of root 22 to chambers 18 on the opposite side of the blade.
Patent GB-356989-A (GB)
Title: Improvements in feeding devices for percussive tools
IPC: E21B19/083
Filed: 1930-10-31
Abstract: 356,989. Percussive tools. INGERSOLL-RAND CO., 15, Exchange Place, Jersey City, New Jersey, U.S.A. Oct. 31, 1930, No. 32836. Convention date, March 11. [Class 124.] Feed motions.-The tool A is fed forward by the blow caused by the piston striking the drill but recoil is prevented by the pinion X engaging the rack K. The double-pawled ratchet g, h, controlled by the spring-pressed toggle u, engages the head Z in turn for forward feed or withdrawal motions
Patent GB-1214538-A (GB)
Title: Improvements in and relating to permanent magnet brakes
Inventor: BAERMANN MAX
IPC: G01R11/10
Filed: 1968-07-10
Abstract: 1,214,538. Permanent magnet brakes. M. BAERMANN. 10 July, 1968 [17 May, 1968], No. 32843/68. Addition to 1,214,537. Heading H2A. In the permanent magnet brake defined by Claim 1 of the parent Specification a catch member carried by a body 30 which carries the braking magnet 35 is resiliently urged into engagement with a set of teeth 44 formed on or attached to the adjusting magnet 39, whereby the position of the latter may be determined. The catch member may be a toothed crown or, as shown, a toothed segment carried by a leaf spring 46, e.g. of plastics, fastened by a rivet 47. The adjusting magnet may be in two parts 48, 49 of differing length or magnetic effects.
Patent GB-442919-A (GB)
Title: Improvements in or relating to waste heat boilers
IPC: F22B1/18
Filed: 1934-11-15
Abstract: 442,919. Heating steam boilers by waste heat. NIVEN, W. J., 14, Akenside Hill, Newcastle-on-Tyne. Nov. 15, 1934, No. 32891. [Class 123 (ii)] [See also Group XII] In a boiler normally heated by exhaust gases supplied through a branch 13 from the exhaust pipe 14, but adapted for alternative heating by oil or other fuel, the branch 13 is provided with slots 16 or other openings through which air is admitted to the combustion chamber when the exhaust gases are cut off by a valve 15 and the boiler is fuel heated. The air may be forced through a tube projecting into the branch pipe and formed with a bell-mouth end directed towards the combustion chamber.
Patent GB-283337-A (GB)
Title: Pocket electric signalling lamp
IPC: F21V17/02
Filed: 1926-12-30
Abstract: 283,337. Birkbeck, H., (Elektrotechnische Fabrik Schmidt & Co., Ges.). Dec. 30, 1926. Lantern screens.-In a pocket electric signalling lamp for use by railway track inspectors or in dark rooms, &c., the coloured slides 4, 4<1>, two or more in number, adapted to be interposed between the lens and the lamp bulb are housed within a box constituted by the door 2, the proportions being such that the slides, whether operative or not, are wholly within the box. Movement is effected by handles 6, 6<1> at a slide edge projecting through and guided in slots in the front wall of the door, springs 5. 5<1> preventing undesired movement.
Patent GB-765672-A (GB)
Title: Improvements in or relating to the heating of metal billets and the like
Inventor: GREENHALGH HAROLD
IPC: H05B6/06
Filed: 1952-12-30
Abstract: 765,672. Induction heating. SALEM ENGINEERING CO., Ltd. Dec. 30, 1953 [Dec. 30, 1952], No. 32934/52. Class 39(3) Billets or the like 1a are heated in'steps or stages each step being carried out in a different induction coil. The coils 1-8 are axially aligned and the billets are' fed through them in end to end abutment so that as each billet is fed into one end coil it propels the or each of the preceding billets axially of the coils. The billets are fed from an inclined table 11 and are pushed by a double acting piston and cylinder 12, 13. A conveyer 15 receives one heated billet at a time. The endmost coils have fewer turns than the remainder and each coil may be individually turned by an associated capacitor 10.
Patent GB-1107893-A (GB)
Title: Process for the production of water-insoluble azo dyestuffs on textile materials consisting of cellulose fibres or natural silk
IPC: C09B41/00
Filed: 1965-08-02
Abstract: Water-insoluble azo dyes are formed on fibres of cellulose or natural silk by treating the fibres in an alkaline bath which contains an arylamide of 5-hydroxy-1,2,1\sv,2\sv-benzocarbazole-4-carboxylic acid and a tetrazoamino compound of the formula <FORM:1107893/D1-D2/1> wherein X is H or an alkyl or alkoxy having 1 or 2 carbon atoms, R is a C1-C2 alkyl group.  Alk is an alkylene of 1-2 C atoms and Y is -COOMe or -SO3Me where Me is the monovalent radical of an alkali or alkaline earth metal, and a wetting or dispersing agent and subsequently causing the formation of the dyestuff by treatment with an acid agent below 40 DEG C.  The bath may contain an organic or inorganic salt, e.g. sodium chloride, phosphate, sulphate or acetate. The acid agent may be an inorganic or organic acid or a mixture thereof and the acid treatment is preferably carried out in the presence of a buffer at pH 5.5-7.  Examples are given of dyeing cotton.
Patent GB-812809-A (GB)
Title: Improvements in or relating to heterogeneous nuclear reactors
IPC: G21C15/04
Filed: 1957-10-23
Abstract: 812,809. Nuclear reactors. BROWN, BOVERI & CIE. A.G. Oct. 23, 1957 [Oct. 27, 1956], No. 33039/57. Class 39(4). A heterogeneous nuclear reactor comprises a graphite moderator block provided with fuel channels of square cross-section adapted to accommodate spherical fuel elements, the channels being provided with spacing ribs to allow a coolant to flow through the channels past the fuel elements. Fig. 4 shows a horizontal cross-section of part of the moderator 2 with fuel channel 8 and ribs 10 locating a spherical fuel element 9. Fig. 2 shows a vertical crosssection of part of the upper part of the moderator structure. The top end of each fuel channel is provided with an insert 12 which allows cooling gas to excape from the fuel channel into a conduit 13. The moderator structure is surmounted by a cover plate 11 and is mounted on a bearer plate 3, Fig. 6. Each fuel channel connects at its lower end with a steel tube 15 passing through the plate 3. Coolant gas passes into the channel round the outside of the tube 15, and spent fuel elements pass into the tube 15 where they are retained by a bulge 17 until released by a blast of pressure gas from a connection 18. Fig. 1 shows a diagram of the complete reactor. The main flow of coolant gas starts from a blower 20 and passes to the lower part of the reactor, then through the fuel channels, and out of the reactor through a connection pipe 21. The openings into the fuel channels are adjusted in size so that the rise in temperature of the gas is the same in each channel. A secondary cooling circuits passes gas from a blower 22 round the outside of the reflecting shield 4 and thence through slits 7 in the reactor dome into the space above the moderator block where it joins the main circuit. The fuel element may be of sintered uranium carbide of a density of 10 gm 1 cm<SP>3</SP>. sufficiently porous to allow the escape of gaseous fission products. The fuel elements may be fed into the reactor through two successively connected valves 14, and fall onto the cover plate 11 when they are moved about by the cooling gas until they fall into a free fuel channel. The cover plate 11 may be made concave or convex and may be divided into different zones by means of raised portions ; thus the inner zone may be charged first and the reactor operated until it loses some of its reactivity, and then the outer zones may be charged. Spent fuel elements may be discharged by a gas blast, as described above, and fall into an outlet tube 19 whence they may be withdrawn through a valve (not shown). The reactor is started or stopped by starting or stopping the blowers 20, 22. When the blowers are stopped the temperature of the reactor increases, but due to the negative temperature co-efficient of the chain reaction, an equilibrium temperature is reached. In case of danger a neutron absorbent gas such as boron trifluoride, boron hydride or light helium, may be passed into the reactor.
Patent GB-1480781-A (GB)
Title: Data processing system
IPC: G06F13/10
Filed: 1974-07-26
Abstract: 1480781 Data processing system SIEMENS AG 26 July 1974 [6 Aug 1973] 33080/74 Heading G4A The Specification describes data transfers between a central unit and a number of peripherals over a channel operated in block multiplex mode and the way in which requests to start new data transfer operations are handled. A channel unit controls transfers over the channel in a time shared manner under the control of channel programs. Following completion of a channel program command in respect of data transfer between a given peripheral and the central unit the peripheral emits a "channel end" signal whether or not it is still operating (e.g. a magnetic tape searching for the next location for a transfer) and, in response to the "channel end" signal, the channel unit disconnects the peripheral to allow transfers with other peripherals to proceed in the meantime. When the peripheral has finished operating it emits a "device end" signal, which may thus coincide with the "channel end" signal (above) e.g. in the case where no further transfer is to be made with the peripheral. Assuming that the two signals did not coincide and that the "device end" signal is emitted to indicate that the peripheral is ready to continue data transfer, the channel unit treats the "device end" signal as a reconnection request. The highest priority such reconnection request is granted when the channel is subsequently disconnected from any other peripheral to which it had been connected. When a start command occurs requesting that a channel program be started to control a required data transfer it is processed by first checking whether the appropriate peripheral is in operation. If it is the request is rejected and queued for future use. If the peripheral is not operating the channel unit sends a signal to the peripheral, in the intervals between data transfers where the channel is handling transfers for another peripheral. The peripheral responds by emitting "device end" which is treated as a reconnection request (above) by the channel unit so that the required data transfer is processed in accordance with the normal priority arrangement. The arrangement is contrasted with known arrangements where start commands are, if the channel is connected and in use, invariably rejected and queued. In the present arrangement a start command is processed within the normal priority arrangements so long as the specified peripheral is not operating irrespective of the condition of the channel.
Patent GB-534133-A (GB)
Title: Improvements in ventilating device for centrifuge casings
IPC: B04B15/08
Filed: 1939-12-30
Abstract: 534,133. Centrifugal machines. KODAK, Ltd. Dec. 30, 1939, No. 33104. Convention date, Dec. 30, 1938. [Class 23] A centrifuge of the suspension type has a closed casing with a ventilating duct surrounding the spindle and adjacent to the unloading door. The centrifuge is used in the production of nitro-cellulose and the casing and duct prevent the entrance of humid external air. The material is fed to the perforated basket 15 through the pipe 41 and after centrifugal treatment, the door 44 is opened and a stick inserted to loosen the material so that it drops through the discharge pipe 49 which is rendered air tight by a waterseal. The casing 12 is shown with a sloping top 14 with an enlarged neck 17 for the passage of the basket spindle 16. The neck 17 is flanged and has a plate 20 secured to it. This plate has a smooth surface on which rests another smooth plate 21 secured to the aluminium plate 22 which has an opening 30 affording a substantially tight fit round the spindle 16 but not tight enough to make the plate rotate. When the spindle swings the plates 21, 22 move with it and slide over the smooth plate 20, so that a relatively tight seal is effected where the spindle enters the casing. A similar kind of sliding seal is effected at the plate or baffle 35 which projects horizontally inwards from the casing wall, and forms with the sloping top a ventilating duct 36. An exhauster is applied to the outlet 37 of the duct and when the machine is working, any leakage-air tending to find its way inwards will be drawn out through the duct, so that there is no changing atmosphere within the centrifugal chamber. In a modification the top of the casing is flat and the baffle is bent in a rectangular manner to form with the casing the opening to the duct.
Patent GB-860630-A (GB)
Title: Improved apparatus for reactions in circulating liquids
Inventor: CAUDLE PETER GRAINGER
IPC: B01J19/00
Filed: 1958-10-17
Abstract: <PICT:0860630/III/1> A reactor divided by a vertical partition into two zones which are connected at the top and bottom and comprising means to introduce finely dispersed reactant or other gas into the lower part of the first of said zones to effect circulation of liquid between said zones, is characterized in that one or more vertical slots are provided in the upper part of said partition, said slot or slots being positioned in relation to the side wall of the vessel, or a baffle being provided, so that liquid immediately after circulating through said slot, is deflected in the horizontal plane.  In Figs. 1-3 (not shown) the zones comprise major and minor segments of a cylindrical reactor of, e.g., 1 ft. diameter and 22 ft. in height, and a single slot is provided.  Fig. 6 shows a plan of an arrangement of baffles and slots formed in the upper portion of a cylindrical partition in a cylindrical reactor of e.g. 2-20 ft. diameter.  The liquid enters through slots 19 and is deflected by angled baffles 16, 17 before passing downwardly into the partition.  The baffles could be curved rather than angular.  The resistance of the slot or slots to liquid flow is preferably from 1-4 times the sum of the flow resistances from all other sources, to secure adequate deaeration without excessive resistance.
Patent GB-658409-A (GB)
Title: Improvements in and relating to hinged doors, hatch covers and the like
IPC: F24C15/02
Filed: 1949-12-30
Abstract: 658,409. Watertight doors. BALL, F. A., and KING, H. A. Dec. 30, 1949, No. 33363. [Class 113 (i)] [Also in Group XVIII] A pressure-resisting door 1 has a hinging link 2 extending between a pivot 4 on the inside of the door frame 5 and a pivot 3 on the inside of the door 1, and operating means controlling the angle between the door 1 and link 2. The link 2 is rigidly connected to a toothed sector 11 coaxial with the pivot 3, and is pivotally connected at its free end to the end of a holding lever 6 linked to the door 1 at 8. Operation of a handle 15 or 16 rotates a shaft 13 journalled in the door 1 and carrying a worm 12 engaging the sector 11 which is hence raised and with it the link 2. The lever 6 is consequently moved clockwise to disengage a notch in its end from a flange 7 on the frame 5. The door is by this means raised (see Fig. 2, not shown) and may be swung upwardly about the pivot 4. In a modification, the operating means is a cross-head in screw-threaded engagement with a shaft' journalled in the door. A pin on the link 2 engages a recess in the cross-head to which the lever 6 is pivoted. Rotation of the shaft as before raises the link 2 and lever 6 to raise the door 1.
Patent GB-375692-A (GB)
Title: Improvements in or relating to ceramic electric heating bodies
IPC: H05B3/74
Filed: 1931-12-02
Abstract: 375,692. Electric hot-plates PORZELLANFABRIK KAHLA, Kahla, Thuringia, Germany. Dec. 2, 1931, No. 33387. Convention date, March 13. [Class 39 (iii).] A ceramic electric heating body is constructed of an upper plate 1 of densely sintered ceramic material and a lower one 3 formed of porous ceramic material and carrying the heating wires 2 in recesses in its upper face. The contacting faces of the plates are made smooth and are held together by springs 8 on a surrounding flanged ring 6. Plate 1 may be formed in several parts which may be connected by a cross 4 made of heat-resisting metal and secured in slots in the plate sections by ceramic cement. The cross may be double T-shape in section as in Fig. 6, and it may be earthed.
Patent GB-360674-A (GB)
Title: Improvements in dies for use in the manufacture of tiles for walls, fireplaces and the like
IPC: B28B7/20
Filed: 1930-11-08
Abstract: 360,674. Dies for making tiles. ASHWORTH, J. H. and WOODS TILERIES (HANLEY), Ltd., Nile Works, Derby Street, Hanley, Stoke-on-Trent. Nov. 8, 1930, No. 33654. [Class 87 (ii).] The rear faces of tiles are undercut by means of beveledged sliding plates b2 which are connected to spring- controlled sliding members b limited in movement by screws d. When the annular die X is lowered over the fixed pillar 3, the members bare forced into their recesses, thereby moving the plates b<2> outwards. An upper die then is lowered to shape and compress the tile. When the lower die is raised by means of the shaft 9 to deliver the moulded tile, the plates b<2> move inwardly to clear the undercut surfaces as soon as the die clears the pillar. A valve 10 with a loosely-fitting stem 11 is mounted in the pillar and is raised by suction on the delivery stroke to release the air imprisoned round the moulded article. In the illustrated apparatus four members b are employed each at right-angles to the next and the bevelled edges of the plates co-operate to form a square recess. Specification 340,601 is referred to.
Patent GB-774114-A (GB)
Title: Improvements in and relating to the transmission of television signals
Inventor: HOLLOWAY DENNIS GODSON
IPC: H04N5/14
Filed: 1953-12-03
Abstract: 774,114. Television. BRITISH TELECOMMUNICATIONS RESEARCH, Ltd. Nov. 23, 1954 [Dec. 3, 1953], No. 33686/53. Drawings to Specification. Class 40 (3). A television signal is, at the transmitter, differentiated and amplitude compressed; and at the receiver is amplitude expanded and integrated. Specification 722,769 is referred to.
Patent GB-154598-A (GB)
Title: Improvements in or relating to trawl-nets
IPC: A01K73/02
Filed: 1920-11-29
Abstract: 154,598. Caron, G. Nov. 8, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Trawling - gear; nets.-The front portion a, b, c, d of a trawl-net is provided with an extension p, a float q and a third cable 3. The extension p deflects fish towards the net, and the third cable 3 and float q keeps the back of the net at 30 degrees from the vertical. The net is towed by cables 1, 2, 3 fastened aft on the trawler and raised by hauling the cables 1 and 2 from fore and aft respectively and the cable 3 from the centre of the trawler.
Patent GB-432633-A (GB)
Title: Arc welding electrodes
IPC: B23K35/04
Filed: 1933-12-01
Abstract: 432,633. Uniting by fusion. ZACK, M., 7<111>, Utrechter Strasse, Cologne, Germany. Dec. 1, 1933, No. 33792. Addition to 401,186. [Class 83 (iv)] In an arc-welding electrode wound with one or more insulated wires with bare ends for receiving current independently of the core, as described in the parent Specification, the wires are of a metal or alloy of composition similar to that of the core. Additional insulated windings of good conducting metal, of composition different from the core, may be provided.
Patent GB-1414058-A (GB)
Title: Octagonal steel insert base for glass fibre reinforced plastic  poles
IPC: E04H12/22
Filed: 1973-07-17
Abstract: 1414058 Part bases F T McDONNELL and T R COXON 4 Feb 1974 ]17 July 1973] 33905/73 Heading E1B A steel insert for the base of a glass fibre reinforced plastics post comprises a closed octagonal section portion and a portion with some of the sides of the octagon removed. The insert is made by welding rectangular section steel bars. A flange is welded to the end opposite to that which is inserted the post which may be a lighting column or a flagstaff.