baber/WOPTO huggingface dataset:
Patent GB-616568-A (GB)
Title: Improvements in or relating to inductances for radio apparatus and other applications
IPC: H01F17/04
Filed: 1946-08-28
Abstract: 616,568. Inductances. MONTIGNY, M. V. G. B. DE M. DE. Aug. 28, 1946, No. 25726. Convention date, Jan. 11, 1943. [Class 38 (ii)] The core and coils 5 of an inductance are contained in an air-tight cell of insulating material, formed, for example, by a hood 1 and base-plate 6, through either of which the coil leads 8 and core adjusting member 7 extend in an air-tight manner. A partition (Fig. 1, not shown) may divide the cell into two compartments to contain the core with its coil and member 7 respectively. Alternatively, the core and coil 5 may be mounted axially on a tubular extension 10, closed at its free end, and into which screws the member 7. The core and coil may be held between the hood and base-plate or by a thrust washer (Fig. 5, not shown) pressed against the core by means of a split ring forced into a groove in a stud formed at the end of extension 10. Member 7 may pass through a cork or like resilient washer 13 to afford an air and, friction-tight joint and the internal threading 9a may be omitted. The external portion of member 7 may be contained in an air-tight cell formed. by an extension 1a of the hood or base-plate and a cap 11. The hood may carry fixing lugs as well as the base.
Patent GB-1393030-A (GB)
Title: Device for cooling connections in electric accumulators
IPC: H01M10/50
Filed: 1972-06-01
Abstract: 1393030 Electric cells FABBRICA ITALIANA MAGNETI MARELLI SpA 1 June 1972 [1 June 1971] 25730/72 Heading H1B The end poles 5 of an accumulator are cooled by heat exchange with, or and optionally by the latent heat of evaporation of, the electrolyte brought into contact with the poles by sleeves D of porous material dipping into the electrolyte.
Patent GB-761562-A (GB)
Title: Improvements in or relating to holders for cables and the like
IPC: B65H75/44
Filed: 1953-09-17
Abstract: 761,562. Spring drums. BRUCE, M. J. H. Oct. 18, 1954 [Sept. 17, 1953], No. 25743/53. Class 78 (2). A cable holder comprises a reel 27 having cable guides 39 mounted thereon at two points spaced about the periphery of the reel, spring means 19 biasing the reel, and releasable catch means 42 to control rotation of the reel by the spring means. As shown, the reel 27 is under the influence of spring 19, the latter urging the reel through spiral pulley 18 (fixed to barrel 17 of the spring) cable 28, spiral pulley 22, gears 23 and 25, the latter being fixed on hub 26 of the reel, so that (due to the spiral pulleys) the torque applied to the reel remains constant. A peg 23A finally engages the cable 28 to prevent overwinding of the spring. The catch means 42 has spring 46, which is secured to said means at 47 and is wound round fixed shaft 41 to frictionally engage said shaft. Thus, said means forms an abutment 45, and the spring forms a yieldable abutment 48, the two abutments co-operating respectively with the moving pins 49 and 51 carried by the lower flange 29 of reel 27 whilst a fixed pin 43 co-operates with shoulders 52 and 53; and the cable slipping back under the influence of the spring or being held against the spring according respectively as to whether the catch is eased into the position of Fig. 5, or the position of Fig. 6. To load the reel, the spring is wound up; coverplate 36 and upper flange 31 are then removed to expose channel 33 in reel 27; the cable 54 is laid in the exposed channel and is passed between the fairleads 39; the spring is then released to cause the cable to be wound up on the reel; and, finally, the flange 31 and cover 36 are replaced. The spiral pulleys 18, 22 are designed so that the turning force applied by the spring to the reel decreases as the spring is wound up at substantially the same rate as the couple due to the pull on the cable 54 decreases (due to unwinding of the cable). The device may be used with a drill or soldering iron or with a vacuum cleaner.
Patent GB-812905-A (GB)
Title: Shell molding compositions based on sand and a phenol-aldehyde binder
IPC: B22C1/22
Filed: 1956-08-23
Abstract: Pine wood, which may first be steamed to remove volatiles such as turpentine and pine oil, is extracted with a coal-tar hydrocarbon such as benzol or toluol and the extract is freed of remaining volatiles.  This extract is then further extracted with a petroleum hydrocarbon such as gasoline to remove the rosin and leave the desired phenolic resinous residue which is insoluble in petroleum hydrocarbons and completely insoluble in alcohol; this latter extraction may also be performed with a mixture of petroleum hydrocarbon and furfural, in which case the desired resin is dissolved in the furfural phase, the furfural being later removed by evaporation.  This pine wood resin is then reacted with a phenol and an aldehyde simultaneously (see Group IV (a)); the reaction product is then used to form shell-moulding compositions (see Group XXII), the resin either being ground and mixed with sand with or without hexanethylene tetramine, or being dissolved in a solvent and used to coat sand.  Specification 812,906 is referred to.ALSO:Shell moulding compositions comprise a major amount of sand and a minor amount of the simultaneous reaction product of (i) a phenol, (ii) an aldehyde and (iii) a substantially petroleum hydrocarbon insoluble pine wood resin as defined below, the amount of the pine wood resin being 10-60 per cent by weight of the total phenolic ingredients and the molar ratio of aldehyde to total phenolic ingredients being 0.6:1 to 3:1. Phenols specified are phenol, m-cresol, m-ethyl phenol, various 3:5 dialkyl phenols, and resorcinol.  Aldehydes specified are formaldehyde, paraformaldehyde, hexamethylene tetramine, dimethyl formal, furfural, glyoxal, and acet-, propion- and butyr-aldehydes. The pine-wood resin, which may be prepared in various ways (see Group III), has the following essential characteristics: insolubility in petroleum hydrocarbons or alcohol, a methoxy content of 3-7.5 per cent, an acid number of 90-110 and a drop melting point of 95-125 DEG C.; and is a solid, reddish, phenolic material of molecular weight of about 450.  The reaction is carried out in the normal manner, typically at 80-110 DEG  C. for 1-2 hours, in the presence of acid or alkali catalysts which include organic amines such as pyridine, methylamine or triethylamine, to produce novolaks or resoles.  The product is then dehydrated, pulverized and mixed with sand.  A modification exemplified in Examples (1) and (2) is the addition of at least 5 per cent of furfural, based on the weight of the total phenolic ingredients, just before dehydration.  In Examples (2) and (5) hexamethylene tetramine was added to the resin sand mixture.  In Example (2) the phenol and pine wood resin are heated together before the formaldehyde and catalyst are added.
Patent GB-1216364-A (GB)
Title: Improvements in or relating to tape transport apparatus for tape recorders
Inventor: MAXEY ALEXANDER R
IPC: G11B15/43
Filed: 1968-05-30
Abstract: 1,216,364. Feeding record tapes. WESTEL Inc., WESTEL ASSOCIATES, and WESTEL CALIFORNIA INVESTORS, [trading as WESTEL CO.]. 30 May, 1968, No. 25863/68. Heading G5R. In a reel-to-reel tape transport, the detection of a predetermined amount of slack in the tape between the reels causes a one-way lock to engage the supply hub and lock it against forward rotation, in order to prevent tape spillage during carriage. As shown, a compliance arm 20, 152 controls a speed-governing brake band 144 and, at a predetermined amount of tape slack, locks the supply hub against forward rotation by the engagement of a pawl 178 with a ratchet 180. A resilient joint 185 allows the compliance arm to take up even further slack. The take-up hub is prevented from reverse rotation by a similar arrangement or by a one-way clutch. Instead of the pawl-and ratchet, the hub-lock may use a wedging action between high-friction surfaces (200, 202, Fig. 9). The video tape recorder described uses helical scan, coaxial reels and two capstans.
Patent GB-880026-A (GB)
Title: Improvements in or relating to apparatus for controlling the sequential operation of switch means and to electric motor control arrangements including such apparatus
Inventor: FRIEDLANDER ERICH SIEGFRIED
IPC: B66B1/12
Filed: 1958-08-12
Abstract: 880,026. Switching-systems. GENERAL ELECTRIC CO. Ltd. Aug. 10, 1959 [Aug. 12, 1958], No. 25889/58. Class 38 (4). [Also in Group XXXVII] In apparatus for controlling the sequential operation of a number of switches 13, each switch is operated by a bi-stable magnetic amplifier 14 having opposed control windings 17, 18, the turns-ratio between the two control windings varying progressively for successive amplifiers so that the number of switches which are operated is a function of the ratio between control signals supplied respectively to the windings 17 and 18. When a control handle 24 is displaced to close a contactor 41, an induction motor 10 starts with the maximum value of resistance 12 in its rotor circuit. A signal dependent upon the speed of the induction motor derived from control generator 22 is fed to the windings 17. The magnitude of the signal applied to the windings 18 is dependent upon the setting of the control handle, so that the number of switches 13 energized is a function of both the slip and of the setting of the control handle. During braking D.C. excitation from rectifier 37, which is fed through the A.C. windings of saturable reactor 35, is applied to the primary windings of the induction motor. The magnitude of this D.C. excitation depends upon the setting of the control handle 24 which also varies the magnitude of the current supplied to the windings 18. This signal has two components, one pre-set in magnitude and the other varying in accordance with the displacement of the control handle from its mid-position. When the dynamic braking contactor is closed, the sliprings of the control generator 22 are supplied from rectifier 31. Amplifiers other than magnetic amplifiers may be used, and the system applied to the control of resistance sections in circuit with the field winding of a D.C. motor. The resistance sections may be fixed resistances between electrodes in an electrolytic tank. The switching arrangement may be used for controlling reactive impedance sections for power factor correction. Specifications 715,340, 717,253 and 738,310 are referred to.
Patent GB-246798-A (GB)
Title: Improvements in accessories for tobacco pipes
IPC: A24F9/00
Filed: 1925-10-17
Abstract: 246,798. Kempter, F. Feb. 2, 1925, [Convention date]. Tobacco pipes; tobacco-pipe stoppers.- A winding shank for rolling smoke filters and inserting them into the stems of tobacco pipes comprises a pair of semicylindrical members b bevelled at their free ends c, the shank being provided with a knob d. The slot a between the members b receives the end of a filter paper, which is then rolled up and removed from the shank either before or after insertion into the pipe stem. The membars b mav be pivoted to move apart from one another. The knob d may be used as a pipe stopper and may be made to be detached from the shank and fitted to the ends c of the members b.
Patent GB-1017344-A (GB)
Title: Improved fluid control plug valve
IPC: F16K5/16
Filed: 1962-07-06
Abstract: 1,017,344. Valves. S. DIXON & SON Ltd., and H. F. BARNARD. Aug. 15, 1963 [July 6, 1962], No. 25984/62. Heading F2V. In a rotatable plug valve (not shown), the plug is mounted with peripheral clearance within the plug body and, as the plug port is rotated out of alignment with the body passage, is bodily displaced into engagement with sealing means therebetween. The tapered plug 5 is axially displaced upon threads 18 as operating stem 17 is rotated for the resilient plug mounted sealing discs 26 to obturate the flow passage 2. The axial displacement is adjustable by means of boss 19 mounted by arms 20 upon a pair of bonnet 13 securing studs 21. Plug rotation is limited by a stop 23. The sealing rings may alternatively circumscribe the plug body ports and/or sealing discs may be retained within the plug. The rings or discs may be of polytetrafluorethylene polyamide or polyester.
Patent GB-1172269-A (GB)
Title: Improvements in or relating to Tape Transport Apparatus
IPC: G11B15/295
Filed: 1967-06-07
Abstract: 1,172,269. Tape transport apparatus. NEWELL INDUSTRIES Inc. 7 June, 1967 [8 June, 1966], No. 26196/67. Heading G5R. Tape is driven from a supply roll 22 to a takeup roll 23 by a capstan 19 having resilient surface portions 21 engaging the rolls, the contact pressure between the capstan and supply roll being reduced and that between the capstan and take-up roll being increased during operation. As shown, a reversible capstan 19, preferably having one flange 27, 28 biased towards the other, drives magnetic tape past a head 25 between rolls 22, 23 journalled in carriages 32 slidable on rods 29, 31 and urged together by a spring 37. Spring-tensioned cords 51, 41 are wrapped about shaft sections 52, 36 so that in use the supply roll is biased away from the capstan and the take-up roll towards the capstan. Alternatively, the cords may be replaced by dash pots, or by adjustable brake pads attached to the carriages and bearing against the rods (Fig. 2, not shown).
Patent GB-389026-A (GB)
Title: Superheterodyne receiver for wireless signalling
IPC: H03H7/01
Filed: 1931-11-21
Abstract: 389,026. Valve circuits for wireless reception. HAZELTINE CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A.-(Assignees of Macdonald, W. A.; Little Neck, New York, U.S.A.) Nov. 21, 1931, No. 26291/32. Convention date, Feb. 13, 1931. Divided on 391,521. Drawings to Specification. [Class 40 (v).] One or more of the coupling transformers in the intermediate frequency stages of a superheterodyne receiver have one coil, preferably the primary, tuned by 'a condenser to the intermediate frequency and the other coil so wound as to be resonant, with or without added capacity, at a frequency higher than the'intermediate frequency but lower than the lowest signal frequency to which the receiver can be tuned. The coils are somewhat tightly coupled by placing their bobbins close together on an axial former, so that the transformer as a whole resonates at the intermediate frequency. The secondary coil reacts as a capacity at all frequencies within the tuning range, and thus attenuates any signals which penetrate the first detector without change, of frequency. The secondary coil may be shunted by a tapped resistance for giving control of amplification. Where the transformer is followed by a diode detector, it is arranged to step,down the voltage to suit the resistance of the detector. When the secondary coil of the transformer is tuned to the intermediate frequency, only a portion of the secondary should be connected across the detector. Transformers as described above may be preceded at another stage of the intermediate frequency amplifier by coupled tuned circuits arranged to give double resonance. The Specification describes a complete superheterodyne circuit as disclosed in Fig. 1 of Specification 391,521.
Patent GB-166475-A (GB)
Title: Improvements in spinning, doubling, twisting and like machines used in the production of yarns or threads of fibrous substances
IPC: D01H7/12
Filed: 1919-06-10
Abstract: 166,475. Constantine, P. H., Constantine, F. W., and Kay, T. G. June 10, 1919. Spindle apparatus.-In drag devices for spindles of spinning, doubling, twisting and like machines, weights or pressure devices act frictionally on discs or supports on the spindles through the medium of antifriction bearings. Weights s<3>, s<8>, s<2>, Fig. 1, are carried on a rail s, Fig. 6, which is raised and lowered relatively to the lifter rail by appropriate devices, for instance those described in Specification 121,142 or 165,828, so that they successively bear upon and are raised from balls x on discs a<2> on the spindles. Bars b<3>, Fig. 6, are connected by links r with blocks g<2> on the pokers and by links r' with the rail s, and are moved horizontally by a, cam t rotated by the building-motion cam-shaft so that the bar s is moved relatively to the lifter rail. An adjustable cross-piece u engages the cam, and springs 2 partly balance the parts moved by the bars.
Patent GB-1187634-A (GB)
Title: Fuel Control System for Gas Turbine Engines
IPC: F02C9/00
Filed: 1967-06-07
Abstract: 1,187,634. Gas turbine engine fuel systems. MOTOREN-und TURBINEN-UNION MUNCHEN G.m.b.H. June 7, 1967 [July 21, 1966], No.26388/67. Heading F1G . In a gas turbine engine fuel system in which a fuel pump supplies fuel to a combustion chamber through a metering orifice the pressure drop across which is kept substantially constant by a pressure regulating valve, the size of the orifice is variable by relatively moving parts in such manner that the resultant change in flow through the orifice follows an exponential characteristic, the relative movement of the parts being effected by a first means in accordance with engine speed and by a further means responsive to signal representing engine limiting parameters, the further means effecting the relative movement according to a function of the logarithm of each such signal. These engine limiting parameters may comprise the temperature limit with respect to turbine blading, the surge limit of the compressor, the speed limit as defined by the rotor strength, and the flame-out limit of the combustion chamber. A temperature signal 20, Fig.4, is converted to logarithmic form by a logarithmic cam 22, and a compressor pressure signal 21 applied to a bellows 26 is converted to logarithmic form by a logarithmic spring 23, the logarithmic sum of the two signals being applied through a lever 24 to produce axial movement of a valve spool 15. The leverage is adjustable by means of a movable falcrum 25. A rotating valve sleeve 12 is movable axially in accordance with engine speed by flyweights 17 acting in opposition to a spring 18 having an adjustable abutment 19. A metering orifice 13, which co-operates with a control edge of the valve spool 15 to control the flow of fuel from a fuel pump to a combustion chamber, is shaped to provide an exponential (i.e. antilogarithmic) flow/stroke characteristic. The pressure drop across the metering orifice 13 is kept constant by a pressure regulating valve (not shown).
Patent GB-848369-A (GB)
Title: Electric voltage stabilizer
IPC: G05F1/652
Filed: 1958-08-18
Abstract: 848,369. Automatic regulation. PEYRON, A. F. R. Aug. 18, 1958 [Aug. 27, 1957], No. 26432/58. Class 38 (4). An A.C. or D.C. voltage stabilizer consists of a fixed resistor 2 and a photo-element 1 which decreases its resistance when illuminated, connected as a potential divider across the supply to be stabilized. The stable voltage is obtained across the photoelement 1 which is illuminated by a lamp 3 also connected to the unstabilized supply. In a modification, Fig. 2 (not shown), a non-illuminated photo-element is included in the fixed arm of the divider to compensate for changes in ambient temperature. In a further modification, Fig. 3 (not shown), the potential divider is fed from one secondary of a transformer, and the lamp from another.
Patent GB-252046-A (GB)
Title: Improvements in or relating to collapsible tubes for use in the decoration of confectionery and other edibles
IPC: B65D35/38
Filed: 1924-11-06
Abstract: 252,046. Davis, L. C. J., Appleton, T. H., and Kerr, P. Nov. 6, 1924. Tubes or containers, collapsable.-A collapsable tube for use in the decoration of confectionery and other edibles is provided with a detachable nozzle 6 having an elliptic orifice as shown in Fig. 3, the nozzle being fitted after the removal of the usual preserving-cap. In a modification, Fig. 9, the collapsable tube 8 has an end wall 9 having an eccentrically positioned hole 10 with which either of a number of various sectioned nozzles 14, 15 &c. is registered during the extrusion of the paste 17. The nozzles 14, 15 &c. are carried on a revoluble cap 11 having an inturned portion 12 which engages a groove 13 in the tube 8. The paste may consist of icing sugar and water with gelatine or other suitable lubricant. Flavouring or colouring material may be added. Chocolate paste may be used.
Patent GB-469525-A (GB)
Title: Joint or coupling for tubes or hoses
IPC: F16L33/22
Filed: 1936-09-30
Abstract: 469,525. Hose couplings. CELLOTUB, and ROUX, P. A. M. Sept. 30, 1936, No. 26564. [Class 99 (i)] The end of a hose pipe is secured to a coupling member A provided with a tapered spigot 1 by a deformable sleeve B which compresses the hose around the spigot when it is contracted by an internally-tapered external ring C upon screwthreaded engagement of the latter and the coupling member. The sleeve is tapered externally to correspond with the ring C and is cylindrical internally, and its inner or thicker end is rounded - off to compress the extreme end of the hose upon a rounded base portion 2 of the spigot 1. The sleeve is also internally grooved when used with a hose having an external helical reinforcing wire, and preferably the engaging threads 3, 7 of the coupling A and ring C are of opposite hand to that of such a wire. A washer may be interposed between the hose and the rounded inner end of the sleeve B.
Patent GB-855286-A (GB)
Title: An improved pump for attachment to an agricultural tractor
IPC: F04B43/02
Filed: 1958-08-19
Abstract: 855,286. Diaphragm pumps. DIXON, E. Aug. 18, 1959 [Aug. 19, 1958], No. 26567/58. Class 102(1). A diaphragm pump for attachment to an agricultural tractor having a three-point power lift linkage comprises a pump casing 5, closed by a diaphragm 6, mounted on a framework 11 to which is secured arms 12 carrying trunnions 13 for connection to lower links of the linkage. Bearing brackets 24 extend from the framework and carry couplings 26 for attachment to the upper or control link of the linkage. The pump casing 5 has valved inlet and outlet pipes 7, 8 and the diaphragm 6 is connected by a rod 15 to a crankshaft driven from the shaft 21 by a chain and chain wheel or other suitable gearing in the casing 28. The shaft 21 is coupled to the power take off shaft of the tractor through a universal joint 22.
Patent GB-997894-A (GB)
Title: Improvements in textile lap-forming machines
Inventor: STAFFORD ALEC WALTER
IPC: D01G27/02
Filed: 1963-07-04
Abstract: 997,894. Lap winding machines. T. M. M. (RESEARCH) Ltd. June 26, 1964 [July 4, 1963], No. 26592/63. Heading D1N. A bobbin is held against a pair of driving drums in a lap winding maching by means including a pivotally mounted motive unit so connected. to the bobbin by a linkage that the pressure applied to the bobbin is automatically augmented as the lap diameter increases. The prefered motive unit is a hydraulic jack 19 that is effective when a lap is complete to raise the lap 13 which is then released from end plates to roll over a pivoted flap 66 and table 67 to a conveyer 68. A loading assembly 16 is then lowered by the jack and, in consequence, an abutment 54 on the assembly abuts against a bowl 511 on a lever 51 causing a carrier 50 to rotate clockwise, whereupon a pocket 55 removes a bobbin 12 from a magazine 57 and raises it to the operative position. The flat 66 yields to allow the bobbin to pass. As the loading assembly 16 reaches the bottom of its stroke a toggle mechanism operates to clamp the bobbin between end plates 33. With the build-up of the lap the jack 19 pivots and the alteration in the angle of its effective stroke as it does so increases the loading pressure.
Patent GB-146768-A (GB)
Title: Improvements in the suspension apparatus of the landing carriages of aeroplanes
IPC: B64C25/00
Filed: 1919-10-29
Abstract: 146,768. Schneider, J. J. M. A. E. Aug. 2, 1919, [Convention date]. India-rubber springs; dash-pots.-The axle of an aeroplane landing carriage is sprung by rubber strips I. The rubber strips pass around collars as J, and sometimes are led over intermediate pulleys to increase the length. Alt ern a - tively or additively, a hydro-pneumatic shock absorber with cylinder L and piston rod M may be provided. The piston has holes covered by a spring-pressed disk with small holes. The return of the piston is effected by a spring or the rubber strips.