baber/WOPTO huggingface dataset:
Patent GB-857822-A (GB)
Title: Automatic liquid dispensing nozzles
IPC: B67D7/48
Filed: 1957-05-14
Abstract: 857,822. Dispensing liquids. OPW CORPORATION. May 14, 1957 [June 26, 1956], No. 15331/57. Class 116 [Also in Groups XVII ard XXIX] A nozzle for dispensing liquids into a container, of the type comprising a main valve 2 biassed to the closed position but held locked open whilst delivery is in progress through the agency of a member, such as a diaphragm 8, which is subject to the vacuum created by the liquid flowing past the valve and which acts to release the valve when the vacuum is destroyed by the rise of the liquid level in the container being filled, is characterised in that a gravity operated valve 23 is provided in an air conduit leading to the pressure-sensitive member 8 whereby, should the discharge spout 13 be inadvertently tilted above the horizontal, the valve 23 will be moved to close the air conduit and so cause shutting off of the valve 2. The main valve 2 is opened by means of a lever 5 which is then retained in the operated position by a pin 6a only lightly held in position by friction so that, should the nozzle be subjected to an abrupt jar, the pin 6a will jump outwards and allow the valve 2 to close. Liquid is supplied through the inlet 11 and in passing through the seating of valve 2 it causes a suction in a passage 32 leading to a chamber 9 on the upper side of a diaphragm 8. Chamber 9 also communicates through a tube 14 with the air in the upper part of the container being filled. When the container is filled and the liquid therein covers the end of tube 14 so as to prevent air being drawn into chamber 9, the flow of liquid past the valve 2 will cause a vacuum to be formed in the chamber and diaphragm 8 will rise taking with it a pin 38. Whilst filling is taking place, an enlarged portion on the pin keeps a ball 40 housed in a radial recess in a slidable member 7 to which the end of actuating lever 5 is pivoted, and the ball also engages a shoulder 41 on a fixed part of the casing to prevent member 7 from moving downward. When the pin is drawn upwards ball 40 will slide away from shoulder 41 and member 7 will be free to move downwards. Spring 34 acting on lever 5 will then force the lever downwards and valve 2 will be closed. A ball valve 23 is normally housed in a recess at the end of tube 14, but should the nozzle be inadvertently inclined upwardly, valve 23 will move and cover the opening in tube 14 and will cause the main valve 2 to close. Valve 23 may comprise a gravity-actuated hinged flap or a piston-type valve.
Patent GB-1006143-A (GB)
Title: Improvements in or relating to coolers for use in cooling systems for electrical apparatus
IPC: H01F27/02
Filed: 1964-04-14
Abstract: 1,006,143. Cooling electrical apparatus; cooling liquids in bulk. WESTINGHOUSE ELECTRIC CORPORATION. April 14, 1964 [May 10, 1963], No. 15371/64. Headings F4S and F4U. In a cooling system in which electrical apparatus is liquid cooled and the liquid then is air cooled in a heat exchanger, the heat exchanger comprises headers 10, 12 one end of each communicating with the liquid filled apparatus, and a number of hollow fins 14 between the headers with their major axes substantially at right angles to those of the headers, one or both headers having a pump comprising a tube 28 fitted on to the respective header by an annular sealing ring 30 at one end and an impeller adjacent the other end of the tube and within the header. The impeller motor 18 protrudes externally of the header and the impeller 34 extends into the outer end of the tube to draw liquid through the tube, and then force it through the annular space and fins or vice versa, the liquid then flowing through the other header and returning to the apparatus. A vertical air flow is promoted by a fan 20 and surrounding vertical walls 22. Alternatively a number of fans may be disposed between the two rows of fins to give a horizontal air flow. Valves 24, 26 permit the heat exchanger to be isolated from the apparatus.
Patent GB-994019-A (GB)
Title: Fibres of acrylonitrile polymers
IPC: D02G1/18
Filed: 1964-04-14
Abstract: Staple fibres and filaments of high density and high shrinkability are made by stretching filaments of an acrylonitrile polymer (a homopolymer or a copolymer containing not less than 70% by weight of units derived from acrylonitrile) by a factor of 1.5 to 2.5, at 135 DEG C. to 145 DEG C. for 0.25 to 2 seconds, the filaments before stretching having a length at most 1.5 times their as-spun length and containing at most 10% by weight of water and at most 3% of spinning solvent.  A bulky yarn is made by subjecting a yarn comprising a mixture of staple fibres formed as above, and staple fibres of substantially lower shrinkability, to conditions which cause the acrylonitrile polymer fibres to shrink.  In an example, a tow of high shrinkability acrylonitrile copolymer filaments produced as above is crimped at 21 DEG C. in a stuffer box, and then cut to staple simultaneously with 3 tows of lower shrinkability made of the same copolymer.  The top contained 19% of the high shrinkability fibres, and was drafted with further staple fibres of the same copolymer to give a blend containing 10% high shrinkability fibres.  This was processed into worsted yarn, steam relaxed at 135 DEG C. in saturated steam, and stretched 30% cuasing breakage or displacement of the fibres. Specification 586,926 is referred to.
Patent GB-476304-A (GB)
Title: Improvements in apparatus for moulding ventilating or hollow bricks
IPC: B28B7/18
Filed: 1936-06-03
Abstract: 476,304. Apparatus for moulding hollow bricks. BENTON, E. A. June 3, 1936, No. 15510. [Class 87 (ii)] Apparatus for moulding ventilating or hollow bricks particularly of cement mixtures, comprises a mould box 1 having a fixed base 2 carrying one or more fixed, upstanding, tapered cores 3, a false bottom 6 having tapered holes for the cores, a presser lid 7, and a discharge stand having a pair of upstanding plates adapted to fit in slots 10 at each end of the base for ejecting the false bottom. The lid 7 is provided with tapered apertures 8 for receiving the cores 3 and overlapping ends 9 adapted to rest on the mould sides such that the lid fits within the mould to a limited extent. The false bottom 6 is adapted to fit the mould closely and the holes therein are shaped to the base of the cores. The bottom 6 may be recessed or ribbed. There may be fourteen cores, each of pyramidal shape. In use, the material is fed into the mould and pressed by the lid 7 and, before it has set too hard, it is discharged by applying the mould to the upstanding plates of the discharge stand.
Patent GB-845018-A (GB)
Title: Improvements relating to hydraulic servo-motor systems
Inventor: PYE ALFRED EDWARD
IPC: F15B9/10
Filed: 1957-05-16
Abstract: 845,018. Fluid-pressure servomotor control systems. DOWTY EQUIPMENT Ltd. Aug. 15, 1958 [May 16, 1957], No. 15629/57. Class 135. A closed-centre piston valve closure 21 slidable in a fixed sleeve 3 serves to reverse the connections from the pressure and exhaust ports 4, 7 to ports 17, 18 according to the direction of movement of the closure 21 from the central position shown. The closure 21 incorporates end bores 36, 38 in each of which is a plunger 39, 41 secured to bridge pieces 42, 43, respectively, that are attached to a rod 44 slidable in the valve block 1 and guided by pins 46, 47, the rod 44 having a lug 45 for operating purposes; spherically surfaced members 51, 52 engage complemental surfaces on the ends of the closure 21 which members are loaded by springs 53, 54 abutting nuts 55, 56, respectively, on the plungers 39, 41. The ports 17, 18 communicate with the bores 36, 38 via passages 35, 37, respectively, so that the pressure differential across a motor connected to the ports 17, 18 creates a force on the closure 21 through the plungers 39, 41 which move the closure in opposition to any displacement of the rod 44 until the closure 21 is in equilibrium. When used in a servo system a floating lever, not shown, may be pivoted to the lug 45, which lever is acted on differentially by an input signal and a fluid-pressure motor feedback signal. Two piston valves as described above may be arranged in parallel in a single block whereby a single rod 44 may simultaneously control two motors.
Patent GB-1176704-A (GB)
Title: Method and Apparatus for Forming Armored Cable.
IPC: H01B13/00
Filed: 1967-04-05
Abstract: 1,176,704. Armoured cables. SCHLUMBERGER TECHNOLOGY CORP. 5 April, 1967 [21 April, 1966], No. 15629/67. Heading H1A. [Also in Division D1] Apparatus for making armoured cables comprises a reel 26 paying out a central core (11) to a rotatable spool frame 32 for applying a righthanded spiral layer (18) of armouring wire strands 19 to the core, a pulling unit 41, a rotatable spool frame 36 for applying a second spiral wire layer of opposite lay, capstan 29 and take-up reel 28. As shown in Fig. 2, the pulling unit comprises three pairs 56 and 57, 84 and 85, 90 and 91, of pneumatic tyres connected to uprights 47, 46, 48 respectively, the upper tyre of each pair being vertically movable to vary the frictional grip on a cable passing through the unit. The tyres 57, 85 and 91 are driven by a constant torque electric motor 81. The pulling force on cable 11 is controlled by a rheostat connected to motor 81, and adjusted so that the tension force on cable 11 and first layer (18) is reduced at the point where the cable leaves the pulling unit.
Patent GB-406974-A (GB)
Title: Improvements in containers for preserving materials by cold
IPC: F25D3/12
Filed: 1932-06-02
Abstract: 406,974. Refrigerating. GERVAIS ICE CREAM SOC. ANON., 11, Rue de Prony, Paris. June 2, 1932, No. 15631. Void [Abridged as open to inspection under Sect. 91 of the Acts, Nov. 11, 1933]. [Class 29.] A storage chamber 6 is cooled by a coil 5 through which circulates brine or like liquid from a space 4 around a container 3 for low temperature refrigerant such as solid carbon dioxide. The circulation may be controlled by a valve 7, and the coil may have a greater heat transmission surface at its upper part. Alternatively a grid of connected pipes may be used in place of a coil. Heat transmission vanes may extend from the cold compartment into the storage space.
Patent GB-422046-A (GB)
Title: Improvements in or relating to electrically-operated direction indicators for vehicles and the like
IPC: B60Q1/36
Filed: 1933-05-30
Abstract: 422,046. Road - traffic signals on vehicles. JABLONSKY, B., 19, Belsize Crescent, Hampstead, London. May 30, 1933, No. 15632. [Class 118 (ii)] A semaphore-type signalling-arm of the power-operated type is assembled on a single piece die-cast carrier comprising a body for holding the power unit and ends for fixing the carrier into a casing, one end also providing the pivot bearings for the arm and the other end carrying the terminal block or other powerconnecting unit. A spring fitted to the arm assists its final motion in both rising and falling movements. An intermediate link in the operating mechanism co-operates with the carrier to prevent rattling when the arm is normal. The carrier as shown in Fig. 4 comprises a body 1 for holding the power unit, ends 5, 7 for fixing the unit, bearings 9 for the semaphore arm pivot and slides 18 for the terminal strip. An electrically-operated arm with the carrier is shown in Fig. 1. The carrier is fixed in position by projection 5 engaging a suitable recess in casing 6 and by rivet 8 which is passed through slot 24 and turned. The solenoid 29 is housed in the body 1 and the arm 12 is pivoted to the carrier and to the intermediate link 14. A screw 17 provides an adjustable back stop for the solenoid armature 2. The spring 15 is tensioned in the intermediate positions of the arm and is normal in both the raised and the lowered positions and so assists the final movement of the arm in both directions of movement. The intermediate link 14 engages the carrier projection 4 when the arm is normal, as shown in Fig. 6, to prevent rattling and swinging of the arm and the angle between the link 14 and the core 2 is arranged to be more than a right angle when the arm is normal so that the arm can be lifted by hand.
Patent GB-500927-A (GB)
Title: Operating means for spindles of machine tools such as the cutter spindles of gear shaping machines and the like
IPC: B23F5/16
Filed: 1938-05-25
Abstract: 500,927. Gear-cutting. MILLER, E. W., and FELLOWS GEAR SHAPER CO. May 25, 1938, No. 15659. [Class 83 (iii)] In a machine of the kind wherein the tool-spindle has combined reciprocation and rotary generating movement as in a gear-shaping machine, the spindle is mounted so that it can swing in a transverse direction, guiding means being moved in unison with the reciprocation of the spindle so that it moves on its operative path in one direction and in a displaced path during its return movement. The spindle-head 10 which may be similar to that described in U.S.A. Specification 676,227 is movable on guides 11 to displace the spindle to cut either internal or external gears. Aligned guideways 12, 13, 14 carry respectively the hub of the generating-wheel 15 driven .to impart rotary generating movement to the cutter 20, a bushing 17 and a sleeve 18. The rotary generating movement is transmitted through complementary guides 21, 22 which may be straight or helical according to the type of gear to be cut. A part-spherical member 23 carries the sleeve of the outer guide, the spherical zones 25, 26 having a centre 27 on the spindle axis. The member 23 has clearance in the hub of the gear 15 to permit swinging movement of the spindle assembly about the axis 27, the rotation of the gear 15 being transmitted to member 23 through equi-spaced pins 30. The lower part of the spindle carries a sleeve 37 having tapered surfaces 35, 36, coacting with similar surfaces in the sleeve 18, and the sleeve 37 may be withdrawn to disengage the tapered surfaces by a lever 38 pivoted at 40. This lever is actuated by cam 45 rotated in time with the spindle reciprocations by gearing 47, the cam being arranged to withdraw the sleeve 37 prior to the return strokes of the spindle whereupon a biassing spring-plunger 49 moves the sleeve 37 laterally to withdraw the cutter from the work by angular movement about the centre 27 during the return. The spindle is reciprocated by a gear 52 engaging a rack on a sleeve 54 carried in the bushing 17 and enclosing the spindle with sufficient clearance to permit the relief movement about centre 27. This movement is preferably in a direction adjustably inclined-to the line joining the tool and work centres. For this purpose a plurality of spring plungers 49 are located on different radii in the spindle housing, all the plungers being moved to inoperative positions, except the one which gives the relief movement in the required direction in accordance with the type of gear being cut and the relative positions of the cutter and work axes.
Patent GB-1386806-A (GB)
Title: Flush mounting insert for sandwich panels
IPC: F16B5/01
Filed: 1972-04-05
Abstract: 1386806 Flush mounting inserts AMERACE ESNA CORP 5 April 1972 [9 April 1971] 15684/72 Heading F2H Adhesive 62 is poured into a hole 58 in a sandwich panel 50 prior to the insertion of an insert 10 preferably of steel or aluminium. A tapered thread 36 on a flange 30 sealingly forms a thread in a sheet 52 of the panel 50 so as to prevent loss of adhesive 62 and retain the insert 10 in position flush with the panel 50 during setting of the adhesive 62. Notches 46 may be provided in a flange 40 to prevent rotation of the insert 10 after setting. Alternatively, this flange may be provided with flats or another non-circular profile to prevent rotation. A threaded aperture may be blind or formed with a constriction 76 to serve as a screw stop. In a further modification, Fig. 7, an internally threaded sleeve 236 is looked against rotation within body 212 by a key 242 which engages slot 244 in flange 238. The sleeve 236 may be deformed at 254 to provide a torque type selflocking mechanism.
Patent GB-966629-A (GB)
Title: Improvements in or relating to decoupling circuit arrangements for high frequency sources
IPC: H03H7/48
Filed: 1962-04-25
Abstract: 966,629. Impedance matching. TELEFUNKEN PATENTVERWALTUNGS G.m.b.H. April 25, 1962 [April 26, 1961], No. 15741/62. Heading H1W. [Also in Division H4] A bridge circuit for connecting two sources operating at the same frequency to a single load, e.g. an aerial, comprises two line sections each of length (2n+1)#/8, one connected between one source and the load, the other connected between the other source and a dummy load of the same value as the output load, and two reactances of value equal to the line surge impedance and the two loads, connecting the input and the output ends of the line sections. Isolation between the sources is obtained if the phase difference between the inputs is #/2. An analysis of the circuit given in the Specification shows that if n is odd (or zero) the reactances must be capacitative to obtain isolation and Fig. 3 shows an arrangement using two Lecher lines of length #/8 coupled by capacitances X. The conductors of each line section are arranged on the opposite edges of a parallelepiped to obtain isolation between the two lines. In the construction shown in Fig. 4, n is even (e.g. the lines are of length 3#/8) and the lines comprise two adjustable coaxial trombone sections 3, 4. In this case, the coupling reactances must be inductive and are shown in the form of two loops 5, 6 at the junctions between the trombone sections and the input and output lines 1, 2, 1<SP>1</SP>, 2<SP>1</SP>. The loops may be adjustable telescopically within the inner conductors of the input and output lines. In order to reduce the physical lengths of the lines when these are coaxial, the inner conductors may be formed as iterative structures having alternate thin and thick sections affording the equivalent of a series of #-sections. In this case, in order to adjust the lengths of the lines, it is necessary to arrange tapping points for one of the reactances adjustable over the electrical length of the last iterative component of the line. A circuit using lumped impedances is shown in Fig. 7 where X L =Z/#2 and X c = (1+#2)Z. In order to reduce the effect of stray capacitance at the ends of lines, they may be connected to earth through inductors which form with the capacitances parallel LC circuits antiresonant at the operating frequency. Where use is made of iterative line sections, these may be dimensioned to have cut-off frequencies below the frequencies of undesired harmonics.
Patent GB-515185-A (GB)
Title: Anthraquinone compounds
IPC: C09B1/26
Filed: 1938-05-26
Abstract: 515,185. Anthraquinone dyes. COFFEY, S., HADDOCK, N. H., WOOD, C., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. May 26, 1938, No. 15819. Addition to 491,493. [Class 2(iii)] Sulphonic acids of anthraquinone compounds of the formula in which X stands for -HN.CH##aralkyl or -HN.CH ##aralkyl, R stands for X or hydroxyl, amino, alkylamino, cycloalkylamino or arylamino, and n =0, 1, or 2, are made by reacting a mixture of a compound of the formula in which R1 is amino or hydroxyl, R2 is R1 or alkylamino, cycloalkylamino or arylamino and n=1, 0, or 2 with the corresponding leuco compound with an amine or amines of the formula H2N.CH##aralkyl or H2N.CH##aralkyl formula H2N.CH##aralkyl or H2N.CH##aralkyl oxidising the resulting leuco compound and sulphonating. Mixtures specified are leucoquinizarin and quinizarin and 1.4.5-tri, 1.4.5.6- and 1.4.5.8-tetra-hydroxyanthraquinones and their corresponding leuco derivatives. Generally 1 to 2 proportions of parent compound are used for 1 proportion of leuco compound, and the condensation may take place in a liquid medium and/or in absence of oxygen. In examples, (1) a mixture of quinizarin and leucoquinizarin is reacted with alpha#-dipheny-gammaaminopentane alone, in butyl alcohol,- or in pyridine, followed by oxidation and sulphonation to give 1.4-bis (##<1>-dibenzylisopropylamino) anthraquinone-sulphonic acid ; in the case of the reaction in pyridine the mixture of quinizarin and leucoquinizarin may be replaced by a mixture of 1.4.7- trihydroxyanthraquinone. and its leuco compound ; (2) a mixture of quinizarin and leucoquinizarin is reacted with alphagamma-diphenyl-#-aminopropane alone or in butyl alcohol followed by oxidation and sulphonation; in the latter case the mixture employed may consist of 1.4.5-trihydroxyanthraquinone and its leuco derivative ; (3) a mixture of 1.4- diaminoanthraquinone and its leuco derivative is reacted with alpha#-diphenyl-gamma-aminopentane in butyl alcohol, followed by oxidation and sulphonation; (4) 1-p-butylanilino-4-hydroxyanthraquinone, mixed with its leuco derivative, is reacted with alphagamma-diphenyl-#-aminopropane, followed by oxidation and sulphonation. Other amines specified are alpha-phenyl-#-aminopropane, alpha-phenyl-#-aminobutane, alpha-phenyl-gamma-amino- . butane.
Patent GB-227411-A (GB)
Title: Improvements in or relating to accumulator grid plates
IPC: B22D25/04
Filed: 1924-07-01
Abstract: 227,411. Keller, H. Jan. 10, 1924, [Convention date]. Galvanic battery plates.-Fine meshed accumulator grid plates are cast by means of an ingate extending across the plate so that the metal enters the fine ribs laterally. The mould may be arranged as shown in Fig. 1 to cast a. plate on each side of the broad runner and the resulting casting is divided by means such as high speed saws along the lines x, y, Fig. 3. The Specification as open to inspection under Sect. 91 (3) (a) states also that the mould may join more than one plate on each side of the runner. This subject-matter does not appear in the Specification as accepted.
Patent GB-1311291-A (GB)
Title: Material tester
IPC: G01N29/44
Filed: 1970-04-03
Abstract: 1311291 Ultrasonic inspection devices AUTOMATION INDUSTRIES Inc 3 April 1970 [4 April 1969] 15934/70 Heading H4D In a pulse-echo ultrasonic tester for testing a workpiece, an attenuator connected between the probe and the echo receiver is controlled so that, following a transmitted ultrasonic pulse, the first echo pulse in the resulting echo pulse train is passed to the receiver in attentuated form and the attenuation is terminated, a predetermined time after said first echo pulse. In the Fig. 1 embodiment, transducer probe 13 is energized with pulses from transmitter 10 at a rate determined by a generator 12 which also synchronizes the time base sweep of cathode ray tube 26. Echoes from workpiece 16 in a water couplant 17 are applied to tube 26 via electronic attenuator 50, receiver 52, controlled reject and detector circuits 54 and vertical deflection amplifier 20. To prevent overloading of receiver 52 by the interface echo from workpiece 16 (which would mask any subsequent echoes from flaws near the interface), attenuator 50 is switched on by a control pulse to attenuate all of the interface echo except for its leading edge. This control pulse is derived by applying a rate generator 12 pulse to a delay monostable 60 which " sets " bi-stable 62 just before the interface echo arrival and so provides a first input to AND gate 64; the second input to gate 64 is the start of the interface echo from receiver 52. A pulse commencing at the start of the interface echo is thus provided by monostable 66 (which is triggered by the AND gate output), and is inverted at 70, shaped at 72, and amplified at 80 to give the control pulse. The time constant of network 72 prevents abrupt removal of the attenuation and thus avoids spurious signal generation. Control 76 sets the degree of attentuation. Further controlled attenuation of the interface echo is provided by circuits 54, the degree of attentuation being set by control 69 and the time for which the attentuation is effective being determined by variable delay monostable 68.