baber/WOPTO huggingface dataset:
Patent GB-495431-A (GB)
Title: Improvements in or relating to directional gyroscopes
Filed: 1937-06-12
Abstract: 495,431. Gyroscopic apparatus. MOSS, D. G. K., and PEIRCE, H. C. June 12, 1937, No. 16405. [Class 97 (iii)] In a resetting device for a directional gyroscope axial movement of an operating shaft 40 brings it into driving engagement with an element freely rotatable around the lower bearing of the vertical ring 3, and also applies a brake to the vertical ring ; initial rotation of the operating shaft 40 and freely rotatable element causes one of a pair of inner gimbal engaging elements to move into a position to resist precession of the inner gimbal ring 2; and further rotation causes the gyroscope to be pulled round the vertical axis. As shown in Figs. 1 and 6, brake shoes 43 pivoted at 44 are urged into engagement with a cylindrical shroud 15, fixed to the vertical ring 3 and surrounding its lower bearing by levers 45 pivoted at 46 and connected by a spring 48. The brake shoes 43 are normally held out of operation by the engagement of pins 43<1> thereon with an enlargement 42<1> on the shaft 40. Inward axial movement of the latter causes the pins 43<1> to ride over a collar 42 on to a narrower portion 42<11> and allows the brakes to be applied. Simultaneously a bevel wheel 41 on the shaft 40 engages a bevel wheel 30 freely rotatable on the shroud 15 and carrying a slotted plate 31. The latter has two L-shaped slots in which engage depending portions 34 of arms 35 pivoted to a lug 36 on the ring 3 and urged by a spring 37 into their lower positions. Initial rotation of the plate 31 causes one of the arms 35 to be raised to a position in which it engages a stop 50 on the inner gimbal 2 when the latter is in its normal position. Further rotation of the plate 31 causes the inner gimbal 2 to precess into contact with the arm 35 if it is not already in the normal position and finally pulls the gyroscope around the vertical axis to the desired new position. The rotor is driven by air supplied to a nozzle at one of the bearings for the ring 2, the air escaping at the other bearing through differentially obscured jets which provide erecting torques to maintain the spin axis normal to the ring 3. In a modification, Fig. 9, the arms 35 are replaced by arms 108, 109 on toothed sector 105 which is pivoted to the vertical ring, centralized by the spring 106, and in engagement with a toothed wheel 104 also pivoted on the vertical ring. The plate 31 is replaced by a crown wheel 100 which is raised into engagement with the wheel 104 by the action of the bevel wheel 41 on the bevel wheel 30. Further modifications are also described.
Patent GB-221302-A (GB)
Title: Silencer for explosion motors
IPC: F01N1/14
Filed: 1923-06-25
Abstract: 221,302. Fragano, E., and Villa, E. June 25,1923. Exhaust-silencers. - Exhaust gases are admitted into a closed casing A through a pipe F which extends part way into the casing and is provided with openings H in the part nearest the outlet end of the silencer, the gases passing from the casing into tubes M, 0 which have openings I in the part nearest the outlet end and are open at both ends so that air is drawn through them. The openings I are formed as shown in Fig. 2, so that the direction of flow of the exhaust gases is approximately parallel to the axis of the tube.
Patent GB-1437578-A (GB)
Title: Process and apparatus for drying material of granular form
IPC: F26B25/00
Filed: 1974-04-16
Abstract: 1437578 Drying granular materials H BAUDOT 16 April 1974 [10 May 1973] 16460/74 Heading F4G A process for drying granular materials in a vertical column 20 through which the materials pass by gravity consists of a multiplicity of successive cycles, each cycle comprising a first phase in which dry air under pressure is caused to pass transversely through a quantity of the material in the vertical column 20 and a second phase in which air is passed through the column at a rate less than in the first phase and a limited quantity of material is allowed to flow out of the bottom of the column 20. The second phase may be followed by a third phase which in duration lies between the first and second phase durations in which the material consolidates within the column and the rate at which air passes through the column is substantially the same as in the second phase. The rate at which air passes through the column 20 is controlled by a valve 6 which comprises at least two pivotally mounted rectangular shutters (Fig. 2, not shown) operable by a ram and linkage to move between an open condition to a closed condition, in which latter gaps are provided between the shutters and about their peripheries. The shutters are closed simultaneously with the opening of a discharge valve 26. Cooling air is blown into the base of the column through a further shutter valve arrangement 12 (particular construction, Fig. 4, not shown). Air passing through the column then passes through a filter 31.
Patent GB-1494385-A (GB)
Title: Electronic organs
IPC: G10H1/38
Filed: 1975-04-22
Abstract: 1494385 Electronic organ WURLITZER CO 22 April 1975 [12 June 1974] 16541/75 Heading G5J In an electronic organ, chords are selected by buttons 40 or keyswitches 42 and the chord tone signals produced by generator 36 and chord former 38, or by generators 44, but said tone signals are only allowed to pass gates 30 or 34, to be voiced, for a predetermined time interval on the actuation of an upper manual (melody) keyswitch 12. Preferred circuitry 22 and 24 for producing timing and gating pulses 26, gating circuitry 30 and gating and filtering circuitry 34 for passing chord tones, and gating circuitry 60 for selecting the chord tone source are described (Figs. 2 and 3, not shown). Lower manual mixer and filter unit 50 is switchable and provided to enable conventional chord playing.
Patent GB-170620-A (GB)
Title: Improvements in or relating to expansion joints for boiler and like flues
IPC: F23M5/02
Filed: 1920-06-21
Abstract: 170,620. Thornley, J. W., and Thornley, W. June 21, 1920. Settings; flues, external.-In a gastight flue joint at the front end of a Lancashire or like boiler, of the kind in which the joint is formed by sliding plates having curved edges corresponding to the sides of the boiler, as described in Specification 129,928, the plates are yieldingly held in contact with the boiler by weights acting directly upon the plates. Sliding plates a are pressed against the sides of a boiler c by rolling weights f supported on inclined guides g, as described in Specification 136,715. The asbestos packing b passes beneath the boiler and around the edge of the recess containing the blow-down cock. The packing around the recess is held against the boiler by sliding plates pressed upwards by rocking levers carrying counterweights.
Patent GB-1357801-A (GB)
Title: Plated wire memory stacks
IPC: G11C11/404
Filed: 1971-05-25
Abstract: 1357801 Magnetic storage arrangements HONEYWELL Inc 25 May 1971 [3 June 1970] 16767/71 Headings H3B and H3T [Also in Division G4] A selection matrix, e.g. for a plated wire memory, comprises row lines and column lines, a load 2-5 for each row and column intersection and a precharging circuit comprising a transistor 19 connected to the row lines via diodes 22, 23 which is operable to permit the loads to charge towards an aiming voltage 20 exceeding a clamp voltage V B , charging being terminated when the load voltage reaches the clamp voltage. The loads are inductive word straps, each of which is associated with a respective plated wire (not shown), and there is distributed capacitance between the straps and the wires. A restore signal switches transistor 27 which turns on transistor switch 19 through transformer 26 and the capacitance charges up from a voltage source 20. A Zener diode 30 and a filter 31 ensure that the capacitances are only charged up to V B  when transistor 19 is switched off and charging ceases. Resistances 33, 34 clamp the capacitance to V B .
Patent GB-1421040-A (GB)
Title: Metal construction device and method of using said device
IPC: E04B1/24
Filed: 1973-04-09
Abstract: 1421040 Structural joints in building frameworks GROUPEMENT D'INTERET ECONOMIQUE POUR LA PROMOTION DU TUBE DANS LA CONSTRUCTION METALLIQUE COMETUBE 9 April 1973 [10 April 1972] 16925/73 Heading F2M [Also in Division E2] A joint for a building structure comprising a column 1, to be joined to a number of beams 3 and to another aligned column (not shown) providing an upward extension of the column 1, consists of clamping members 2 each of bent form, so as to extend around a corner of the column 1, and each having a plate 6 welded to the plate within the angle so as to rest on the top of the column 1, the clamping members 2 also having limbs 4 for securing to the beams 3 by bolts passed through aligned apertures 5. Holes 7 may also be provided in the angles of the members 2 which, when the column 1 is filled with concrete, allow surplus concrete to run out. Where a second aligned column is fitted above column 1 the bolts are not tightened until this is in place, whereupon the bolts tighten the clamping annulus on both columns.
Patent GB-236564-A (GB)
Title: Improved internal combustion engine and scavenging system therefor
IPC: F02B37/02
Filed: 1925-07-01
Abstract: 236,564. Electric Boat Co., (Assignees of Nibbs, E.). July 2, 1924, [Convention date]. Two - stroke-cycle engines; cylinders, ports of; pumps, centrifugal.-Twin cylinder engines having a common combustion chamber 8 are charged by a multi-stage air pump 15 driven by a low pressure turbine 24. This is worked by the exhaust from the engine, an expansion chamber 22 being included in the exhaust pipe. Exhaust takes place at different pressures through the two ports 21, 20. The two pistons work on one connecting rod through the cross-head 11. The scavenging may be at atmospheric or higher pressure.
Patent GB-792942-A (GB)
Title: Improvements in magnetic tape sound recording and reproducing apparatus
Inventor: RICHARDSON HAROLD WALTER
IPC: G11B27/34
Filed: 1956-06-01
Abstract: 792,942. Recording and reproducing apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. June 1, 1956, No. 17001/56. Class 40 (2). An adaptor for use with a tape recorder to enable a counter device to be coupled to the spool thereof comprises a hollow body 6 having three pins 7 at one end for engaging the spool and a pin 9 on the other end for connection as by means of a flexible drive to the counter device. The adaptor may be made of brass or synthetic plastic material.
Patent GB-616311-A (GB)
Title: Improvements in cinematograph projection screens
IPC: G03B21/58
Filed: 1946-06-04
Abstract: 616,311. Projection screens. TURNER, E. G. June 4, 1946, No. 17005. [Class 97 (i)] Each spring actuated linkage of a roller type screen comprises a plurality of single links hinged together, at least one of the hinges comprising two co-operating aluminium or light alloy blades pivoted together, at least one of said blades being formed with a socket for the end of one of the links. In the form shown, each linkage comprises a pair of tubular aluminium links 16 secured in socket 21, 23 forming parts of a " rule '' type hinge 25. The links are similarly hinged to members secured to the box 12 and top bar 15. Links 17 are pivoted to the lower links 16 and to sliding blocks 18 urged outwardly by compression spring. Specifications 334,082, [Class 97 (i)], 376,385, 428,331 and 569,993 are referred to.
Patent GB-907855-A (GB)
Title: Process for the production of high purity silicon
IPC: C01B33/02
Filed: 1960-05-13
Abstract: <PICT:0907855/III/1> High-purity silicon is recovered from a solution of silicon and impurities in molten antimony, silver, bismuth, cadmium, gallium, indium, or zinc obtained by dissolving already produced silicon in the molten metal or by producing silicon in the presence of the molten metal, by distilling off the metal and the impurities under vacuum, e.g. at 1 micron of mercury.  Already produced silicon may have a purity of 92-93%.  Silicon may be produced by reducing a fluorosilicate of an alkali metal or an alkaline earth metal with sodium, potassium, calcium or magnesium. The reduction may be effected in the presence of a fluoride of an alkali metal or an alkaline earth metal as flux at 480 DEG -550 DEG C.  Dissolution may be completed at 1200 DEG -1300 DEG C.  Reduction and dissolution may be effected in a graphite crucible in an atmosphere of argon.  Most of the solvent metal may be removed before the final distillation by filtration, chemical treatment, or pre-distillation.  The chemical treatment may be effected with aqua regia, hydrochloric acid, or nitric acid.  The final distillation may be effected in a silica crucible.  Silica fragments may be removed from the product by treatment with boiling hydrofluoric acid.  The product may then be washed with distilled water and alcohol and dried at 100 DEG C.
Patent GB-587013-A (GB)
Title: Improvements in or relating to motor fuels
IPC: C10L1/10
Filed: 1944-09-07
Abstract: Leaded gasolines are stabilized against the haze or precipitation formed by the decomposition of the lead compound during storage, by the addition of a small amount of hydroquinone or quinhydrone.  The lead compounds may comprise the known lead alkyls such as tetraethyl, tetramethyl, and dimethyl-diethyl lead; preferably at least 3 c.c.s per gallon of the compound is present.  All gasolines may be used including single hydrocarbons excepting gasolines containing mixed aromatic fractions such as obtained from aromatic crudes.  These latter appear to contain a natural stabilizer for the lead compound. Paraffinic gasolines are preferred such as alkylate, polymer and straight run gasolines; the single hydrocarbons such as benzene, toluene, isopropyl benzene, and tertiary butyl benzene are included. The alkylate gasolines may comprise any of the known alkylates or mixtures thereof particularly a butylene or pentylene alkylated with isobutane.  In these fuels a proportion of saturated C5 hydrocarbon may be added to obtain the desired vapour p  pressure.  The polymer gasolines preferably comprise hydrogenated co-polymers of a normal olefine, such as normal butylene, and an iso-olefine, such as isobutylene.  The fuel base stock preferably has an octane number of at least 80.  Other addition agents may be present in the blends particularly aliphatic oxygen-containing anti-knock agents such as di-isopropyl ether, ethyl isopropyl ether, isopropyl t-butyl ether, isopropyl alcohol, ethyl alcohol, t-butyl alcohol, acetone and methyl isopropyl ketone. Specifications 585,238 and 587,008 are referred to.
Patent GB-142363-A (GB)
Title: Improvements relating to arc welding generators
IPC: B23K9/10
Filed: 1919-07-09
Abstract: 142,363. Pollock, H., and McKay, T. G. July 9, 1919. Heating systems; systems depending on the use of two machines.-A generator having an independently excited field winding 4 and a series additive compounding winding 2 supplies one or several parallel-connected welding circuits directly through the adjustable resistances 9. The generator is driven by a petrol or electric motor and may be excited from the mains where possible, or from an exciter on the same shaft as the generator. In another arrangement using two generators, the main field windings of one generator are energized by the second generator and vice versa. The two generators are driven by one motor and each one supplies one or more welding arcs. The motor, generators, and accessories are mounted on a trolly to form a portable welding plant. Interpole windings are provided on the generators.
Patent GB-102614-A (GB)
Title: Improvements in Logs and the like.
Inventor: LINDAHL ANDERS
IPC: B07B13/02
Filed: 1916-11-30
Abstract: 102,614. Lindahl, A., and Nassen, J. F. Dec. 8, 1915, [Convention date]. Pitot-tube apparatus.-Relates to logs of the type in which the two pressures from Pitot tubes are used to control the movements of one or more diaphragms. The apparatus is applicable also to the measurement of the velocity of flowing streams. The high and low pressure Pitot tubes 2, 3 respectively open below the bottom 1 of a vessel, and the pressures are transmitted to the boxes 4, 5 closed by diaphragms 6, 7, which are connected by a rod 8. Two pins 9, 10 are provided on this rod, the pin 9 actuating the speed indicator 12. In an alternative form, the two pressures are transmitted by pipes 31, 32 to a differential manometer 30. The pin 10 actuates a bell-crank 13 carrying a spring 15, which maintains a pivoted member 17 in contact with the diaphragm 18 closing the box 19. The diaphragm 18 carries two valves 21, 22, opening in opposite directions, the valve 21 to the air, and the valve 22 to a reservoir 25 of liquid carbon dioxide or compressed air. If the speed of the vessel increases, the member 17 is moved upwards, the valve 22 is opened, and the pressure fluid enters the box 19 till the diaphragm 18 returns to its mean position, when it is balanced. The pressure is read in terms of speed of the ship by the manometers 28. If the speed decreases, the member 17 is moved downwards, and the valve 21 is opened, thus allowing the pressure fluid to escape to the air till the pressures on the diaphragm 18 are again balanced. In an alternative form, Fig. 2, the two boxes 4, 5 are combined, and the diaphragms 6, 7 connected directly to the member 17 which actuates the diaphragm 18. In this form, the movements of the diaphragms 6, 7 are not so great. In another form, the two diaphragms 6, 7 may be replaced by a single diaphragm forming a partition between the boxes 4, 5. The movements may be transmitted by a fine rod passing through the walls of one or both boxes. The apparatus may be made more sensitive by causing the diaphragm 18 to be pressed upwards by a spring, so that a higher pressure is maintained in the box 19. The speed of the vessel when going astern may be measured by providing an additional Pitot tube with its opening facing astern. The velocity of a stream of water in either direction may be similarly measured.
Patent GB-1069452-A (GB)
Title: Thermoelectric ice maker
IPC: F25B21/04
Filed: 1965-04-23
Abstract: 1,069,452. Thermoelectric devices. BORGWARNER CORPORATION. April 23, 1965 [May 20, 1964], No. 17263/65. Heading H1K. [Also in Division F4] A rotatable ice mould 11 is cooled by a thermo-electric assembly 12 and is provided with hollow trunnions 20, 21 on the latter of which are mounted electrical contacts 50-53 which co-operate with fixed brushes 55, 56 for supplying current to assembly 12. The arrangement is such that when the mould and trunnions are rotated from the upright to the inverted position the direction of the current supply is reversed and the mould is heated by assembly 12. The latter is cooled during freezing by a coil 18 supplied with water via a line 24, including a solenoid valve 25, and trunnion 20, the water being discharged through trunnion 21 and line 27. Mould 11 is rotated by a motor 30 under the control of a thermostat (not shown) associated with the mould.
Patent GB-1393987-A (GB)
Title: Piston removal from engines
IPC: F02F7/00
Filed: 1972-04-14
Abstract: 1393987 I.C. engine driving-gear MITSUI SHIPBUILDING & ENG CO Ltd 14 April 1972 [27 May 1971] 17273/72 Heading F1B [Also in Division F2] In a V or in-line engine a piston 2 is removed from the crank-case by disconnecting the connecting-rod parts 3a and 3b, moving the part 3b to abut a stop in the crank-case, moving the piston into a recess 9 in a balance weight 8 or other member attached to the crank-shaft 7 and rotating the crank-shaft to a position in which the piston may be removed through an opening in the crank-case. The piston may be moved into recesses in balance weights 8, Fig. 10 (not shown), on either side of the crank-pin.
Patent GB-1163235-A (GB)
Title: Magnetic Core Memory
IPC: G11C11/06
Filed: 1967-04-14
Abstract: 1,163,235. Magnetic storage arrangements. INTERNATIONAL STANDARD ELECTRIC CORP. 14 April, 1967 [15 April, 1966], No. 17275/67. Heading H3B. In a two-coordinate magnetic storage matrix in which a plurality of words are stored in each row of cores, and in which a stored word is read out by first applying a negative half-read pulse to those column wires associated with the chosen word and then, after a time delay sufficient for transients to decay, additionally applying a negative half-read pulse to the row wire containing the word, a word is written into the store by applying coincident half-write pulses of short duration to a row wire and selected column wires, respectively, the write pulse duration being so limited that selected cores are only partially switched. A storage matrix for eight words each of two bits is shown in Fig. 2, two words being stored in each row. Selection of a word in a given row is effected by switches Y1, Y2 which connect digit generators DG1, DG2 and read amplifiers LV1, LV2 to the required pair of column wires, and by a switch X1-X4 which connects a pulse generator IG to the row required.
Patent GB-222571-A (GB)
Title: Improved light controlling apparatus for lighthouses
IPC: F21V17/02
Filed: 1923-07-04
Abstract: 222,571. Meinich, J. H., and Lund, C. H. H. July 4, 1923. Lantern shutters.-Flash mechanism for lighthouses having a non-revolving lens 9 and sectors of shutters 12 comprises a toothed wheel 6 which is rotated on a bearing around the vertical axis of the lighthouse by a driving wheel 7 and carries a ring provided with a series of cams 17 adapted to operate the shutters. The shutters 10 in each sector are pivoted about a vertical axis and are connected by arms 13 to a bar 14 influenced by a spring 15 which normally retains the shutters in the closed position. Each bar 14 is periodically moved to open the shutters in that sector by the rocking movement of a lever 18 pivoted a 18<a>, connected at one end to the bar 14 bv a link 19, and provided at the other end with a roller 20 bearing on the cams 17. The different levers 18 for the different sectors may be operated by different series of cams 17 arranged in different horizontal planes on the ring carried by the wheel 6, to enable light of different character to be emitted from the different sectors. Coloured light sectors may also be employed. The wheel 6 is supported by an annular float secured to its underside and projecting into an annular channel filled with mercury provided on the table of the lighthouse, rollers 8 bearing aaginst an upstanding cylindrical member 1 being provided on the upper surface of the wheel for steadying purposes. Alternatively ball or roller bearings may. be employed for the wheel 6.
Patent GB-1423022-A (GB)
Title: Manufacture of filaments or fibres of polyamides
IPC: D01F6/60
Filed: 1973-04-11
Abstract: 1423022 Polyamide filaments BADISCHE ANILIN- & SODA-FABRIK AG 11 April 1973 [12 April 1972] 17364/73 Heading B5B [Also in Division C3] A molten mixture of a filament-forming synthetic linear polyamide with 2 to 20% by weight (based on the filaments or fibres) of one or more alkoxylated diamines having a molecular weight of at least 10,000 and comprising an aliphatic diamine of 2 to 12 carbon atoms to which both 1,2-propylene oxide and ethylene oxide are attached in a ratio of from 10 : 90 to 80 : 20 by weight is vigorously mixed so that the alkoxylated diamine or diamines are present in the finished filaments in the form of particles having a diameter of not more than 0À4 Á, the resulting mixture is passed through a filter having a pore width of not more than 20 Á at least once and the mixture is then melt-spun to form filaments or fibres or is temporarily converted to chip form and then melt-spun, the molten mixtube being maintained at a temperature of not more than 290‹ C. for not more than 30 minutes during said process. Preferably the alkoxylated diamine or diamines have a molecular weight of from 20,000 to 200,000 and are present in a proportion of 4 to 10% by weight, the ratio by weight of combined 1,2-propylene oxide to combined ethylene oxide in the alkoxylated diamine or diamines being desirably from 50 : 50 to 20 : 80. The manufacture of polycaprolactam filaments containing an alkoxylated 1,2-ethylenediamine is exemplified.