baber/WOPTO huggingface dataset:
Patent GB-873758-A (GB)
Title: Improvements in or relating to circuit arrangements for protecting circuit elements in electronic circuits
Inventor: WALTERS LEONARD CHARLES
IPC: H03K17/0814
Filed: 1958-05-12
Abstract: 873,758. Automatic regulation. PLESSEY CO. Ltd. May 12, 1959 [May 12, 1958], No. 15101/58. Class 38 (4). [Also in Group XL (c)] In a voltage-stabilization circuit, in which the negative unstabilized voltage is fed to the collector of a transistor and the stabilized voltage obtained from the emitter, the base being connected to a stabilized voltage source comprising a Zener diode 2 fed via resistor 1, overload of the transistor if the output terminals are short-circuited is prevented by connecting a diode 7 between emitter and base. The diode is normally substantially non-conductive but becomes conductive upon a short-circuit occurring, preventing a dangerous rise in the potential between emitter and base. The diode may be replaced by other devices having a non-linear resistance and may also be used in combination with a fuse-link.
Patent GB-828530-A (GB)
Title: Improvements in or relating to apparatus for making and dispensing beverages
IPC: A47J31/56
Filed: 1955-05-25
Abstract: 828,530. Beverage making machines. JESSEL, J. G. April 27, 1956 [May 25, 1955], No. 15114/55. Class 129. [Also in Group XXIX] A beverage making and dispensing machine comprises a reservoir 2 to which heated liquid is supplied, to form a beverage with beverage forming material, through a valve device 4 which is opened by actuating means 5, 6, 7 when a supporting float device 8 in the reservoir falls, on withdrawal of liquid through dispensing means 11, and is allowed to close when the float returns to its normal position. As shown, a perforated container 1 for drip tea or the like is mounted on the upper part of cylindrical reservoir 2. The dispensing means 11 may be as described in Specifications 617,171 or 828,529. The heated liquid is supplied through a central pipe 3 under control of a needle valve 4 spring-loaded to its closed position and passes through apertures 9 to the container 1. A sleeve member 5 is slidable on the upper part of pipe 3 and supports a weighted assembly 6 comprising a small chamber with a central stem 7 which engages the needle of valve 4 when the level of the liquid and hence the float 8 which engages sleeve 5 and supports the weighted assembly falls. A floating valve needle may be provided instead of the spring- loaded one.
Patent GB-1008922-A (GB)
Title: Improvements in and relating to receiving devices for pulses modulated by phase jumpmodulation on a carrier oscillation
IPC: H04L27/227
Filed: 1964-04-13
Abstract: 1,008,922. Telegraphy. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. April 13, 1964 [April 16, 1963], No. 15135/64. Heading H4P. In a phase-shift data transmission receiver in which a pilot carrier is also received, any error in the receiver output consequent upon a disturbance of the transmission channel, e.g. jitter, is detected and the phase of the output is adjusted so that subsequent bits do not appear inverted at the output. The coding is such that received Marks are in phase with the pilot and Spaces are out of'phase. The pilot carrier, which has a frequency different from the modulated carrier by the bit frequency, is separated at 3, mixed at 8 with a square wave derived from the data carrier, filtered at-bit frequency at 9 and shifted 90 degrees at 10 to give a sinusoidal waveform. This is fed to phase inverter 11 which provides outputs 180 degrees apart, one of which is gated by 14 or 15 to limiter 16, differentiator 17, and half-wave rectifier 18 to provide timing pulses in phase with the data transmissions and at bit frequency. The square wave fed to 8 is also fed to synchronous demodulator 2, and is derived from full-wave rectifier 4 followed by the units shown. The demodulated output is integrated at 19 and whenever switch 20 is closed by the timing pulses it discharges to phase inverter 21. One or other of the outputs is selected by gating arrangement 25-28 to feed one side or other of toggle 24. The various gates are controlled by signals derived from the demodulated carrier by way of low-pass filter and half-bit delay 29. Limiter 30 provides a waveform of the received data, delayed relative to the output of demodulator 2, this waveform being differentiated and rectified. The pulses so produced lie at the centres of the data bits and should be mid-way between the timing pulses from 18. These latter are stretched somewhat at 33 and gated with the former pulses. If, due to disturbed transmission, the transitions in the demodulated data are time shifted, switch 20 may close when the integrator has accumulated too little or a negative charge so that toggle 24 is not triggered. Unless corrected, all subsequent bits will be inverted. However, in such a case a pulse from 32 lies within a pulse from 33 and toggle 35 reverses. This causes the gating arrangements to reverse, thereby shifting the phase of the timing pulses from 18 and also inverting the pulses fed to 24 so that the output, apart from the pulses during which adjustment takes place, is a correct reproduction of the pulses as transmitted.
Patent GB-118188-A (GB)
Title: Improvements in Chucks.
Inventor: HOTTINGER FRIEDRICH
IPC: B23B31/163
Filed: 1917-10-19
Abstract: 118,188. Holtinger, F. Oct. 19, 1917. Chucks.-cams b on a disk a rotated by worm gearing operate radial jaws d, and the jaws are provided at the rear with recesses to receive slotted disks p which engage the cams. The jaws are reversible and have concave and convex surfaces for engaging the exterior or interior of the work. The cam may be wedgeshaped in cross-section and the disks held down by springs; or the disks may have split projections to engage holes in the jaws; or two cams may act together and engage one or two disks.
Patent GB-1079396-A (GB)
Title: Fabric trimmer
IPC: C10B33/02
Filed: 1965-04-09
Abstract: 1,079,396. Trimming fabrics. B. F. GOODRICH CO. April 9, 1965 [April 9, 1964], No. 15217/65. Heading B4B. [Also in Division D1] An edge trimmer for trimming the edge of a continuous strip of material issuing from a calender comprises a bar 14 to be mounted on the calender, a support frame 20, 21, 22, 22<SP>1</SP>, (23), (23<SP>1</SP>), the latter two, Fig. 7 (not shown), slidable on the bar 14 and clampable thereon for coarse lateral adjustment of the frame with respect to the strip, and a crosshead 56 freely slidable on guide rods 40, 42 mounted on the frame and which carries an edge-trimming knife 74, the inclination of the rods 40, 42 to the horizontal being adjustable to increase the tendency of the crosshead 56 to slide towards the centre line of the strip, thereby providing for a fine lateral adjustment of the knife 74 and at the same time increasing the lateral pressure exerted on the knife 74, this pressure being independent of the actual position of the crosshead 56 on the rods 40, 42. The knife 74 is mounted on a threaded rod 68 pivoted on a shaft 64 mounted in a bifurcated support 62 on a shaft 60 pivotally supported in the crosshead 56. A counterweight 72 is threaded on the rod 68 and may be moved therealong to adjust the cutting pressure of the knife 74. The rod 68 may be rotated clockwise, as viewed in Fig. 6, so that the knife 74 is no longer in engagement with the strip. A handle 84 is then rotated counterclockwise to pivot the outer end of a latch 80 into engagement with a serrated disc 78 to lock the knife away from the strip. The frame of the trimmer is clamped on the bar 14 by means (26), Fig. 7 (not shown), comprising a lock screw (30) supporting a pressure plate (34). One end of each of the rods 40, 42 is connected to a block (44), Fig. 4 (not shown), through which is threaded an adjusting screw (48) to raise or lower the block (44) to adjust the inclination of the rods 40, 42. Spaced edge trimmers (13), (13<SP>1</SP>), Figs. 2 and 3 (both not shown), are mounted to trim each longitudinal edge of a tyre cord fabric (11) as it emerges from a calender (1) comprising rolls (2), (3), (4), (5) and in which the fabric is formed by embedding cords (10) of rayon, nylon, cotton or wire in rubber sheets (6), (8). In a modification, Figs. 9 and 10 (both not shown), for use on a Z-calender, the knife (98) is mounted on a rod (94) pivoted at (92) to a crosshead (90). The knife (98) is retained out of contact with the strip by pivoting the rod (94) clockwise, as viewed in Fig. 10, about the pivot (92) until a shoulder (100) on a stop (99) carried by the pivot (92) engages a projection (103) on a pawl (102). To release the knife (98) for cutting, a handle (104) is rotated clockwise to disengage the shoulder (100) from the projection (103) and allow a counterweight (96) to pivot the rod (94) counterclockwise.
Patent GB-1460007-A (GB)
Title: Sorting devices
IPC: B07C5/36
Filed: 1973-03-29
Abstract: 1460007 Pneumatic separation CITY UNIVERSITY R A DUCKWORTH R S NEVE and Y S CHADDA 18 March 1974 [29 March 1973] 15250/73 Heading B2H A sorting device for separating "particles" of one kind from those of another kind comprises means for feeding particles 5 along a path past a deflecting station to a first bin 6, a sensor for detecting to which kind a particle belongs, and a fluid jet amplifier at the deflecting station to deflect particles of the said one kind into a second bin 7 in response to detection by the sensor. The term "particles" includes articles or pieces of material, e.g. minerals, coins, nuts, bolts and grain. The particles may be detected according to their dimensions, physical properties or optical properties. The fluid jet amplifier is of the Coanda-type and includes a nozzle 1 producing a main jet, a jet attachment wall 2 inclined at a small angle to, and offset from, the main jet axis, and a control port 8 to which air is supplied under the control of the sensor. Between the wall 2 and the jet axis is a splitter plate 4 defining a channel 3 with the wall. In accordance with the Coanda principle the main jet clings to the wall 2 and flows through the channel but if a small pressure pulse is applied to the control port 8 the main jet is detached from the wall and flows parallel to the main nozzle axis. The parts are so arranged that when the main jet is attached to the wall 2 the particles will fall clear of it into the bin 6, but if a pressure pulse is applied to the port 8 to deflect the main jet, the latter will impinge on the falling particle and deflect it into the bin 7. In another embodiment, not shown, the sorting device is of the momentum-effect type and differs from the Coanda-type in that there is no attachment wall. The pulse of air simply deflects the main jet from its inoperative path by the action of transverse momentum.
Patent GB-402766-A (GB)
Title: Improvements in or relating to bearings for colliery corves, waggons and like vehicles, applicable also for other purposes
IPC: B61D11/00
Filed: 1932-05-30
Abstract: 402,766. Pedestal bearings. KING, J. E. S., Westfield, Beaumont Avenue, Roundhay, and KING & CO. (LEEDS), Ltd., Garnet Road, both in Leeds. May 30, 1932, No. 15255. [Classes 12 (i) and 12 (ii).] In a pedestal bearing 2 for pit corves &c. applicable also to shafts, rods, and the like, of the kind having a downwardly and outwardly inclined claw 8 at one or both of its ends arranged partly to embrace and to retain the corve axle or shaft except when the axle or the pedestal is moved into an inclined position, the removable bearing block 7 is held against axial movement in either direction by the co-operation of a part of the block and projections or pips on the block with integral parts of the bearing 2. In Figs. 2, 3, the block 7 is held in a transverse recess with tapering sides 5 and supporting ledges 4 by a ledge or rib 9 on the pedestal and a projection 10 passing through a gap 11 in the rib 9 and subsequently burred or riveted over. The transverse recess is arranged to taper slightly from back to front. The sides 5 may be vertical, but whey they are tapered, the ledges 4 may be dispensed with. The end of the block 7 adjacent the claw is shaped to conform to the contour of the claw. The recess 6 for the axle may be semi-circular or multi-sided. A lubricant recess 12, formed partly in the bearing 2 and partly in the block 7 has an outlet 14 to the axle. The block 7 may be of hard wood, metal, or any suitable hard-wearing composition. In a modified form, a square or other shaped bearing block is inserted through a similarly shaped hole in the pedestal, being retained against upward movement by the corve or other supporting surface and against downward movement by the tapering sides of the block and its hole, or by projections on the top of the block, or by ledges similar to the ledges 4. A lubricant recess with an outlet passage is formed in the upper surface of the block. In another modification, the block, which may be of square or other suitable shape, tapers upwardly and enters a corresponding hole, which may pass through to the upper surface of the pedestal, which in that case has a thin covering plate. Lateral projections or shoulders on the block restrain its upward movement. A lubricant recess is provided in this form.
Patent GB-529148-A (GB)
Title: Improvements in and relating to elastic fluid turbine plants
IPC: F01D25/30
Filed: 1939-05-23
Abstract: 529,148. Steam turbines. BRITISH THOMSONHOUSTON CO., Ltd. May 23, 1939, No. 15321. Convention date, May 26, 1938. Drawings to Specification. [Class 110 (iii)] Feedwater heaters, receiving heating steam tapped from intermediate stages of a double flow low-presssure turbine stage, are'located in the dead space of the exhaust casing. Specification 488,055 is referred to.
Patent GB-578473-A (GB)
Title: Apparatus for screwing together the electrodes of electric arc furnaces
IPC: H05B7/14
Filed: 1940-10-16
Abstract: 578,473. Screwing up screws &c. SOC. ANON. COMMENTRY-FOURCHAMBAULT ET DECAZEVILLE. Oct. 16, 1940, No. 15321. Convention date, Aug. 23, 1939. [Class 83 (iii)] The final tightening is applied to electrodes for arc furnaces by fluid pressure means, the initial assembly being effected by hand. After such assembly, rings 1, 2 that may have been suspended round the rods by hooks 11, are clamped to the respective rods by screws 5 and pressure fluid is admitted to cylinders 7 to advance pistons 6, the cylinders being connected to arms 4 projecting from one ring and the pistons to arms 3 projecting from the other.
Patent GB-999812-A (GB)
Title: Improvements in or relating to passive electric networks
IPC: H01G2/00
Filed: 1962-04-19
Abstract: 999,812. Capacitors; circuit assemblies. TESLA NARODNI PODNIK. April 19, 1962 [April 21, 1961], No. 15331/62. Headings H1M and H1R. A solid body made of dielectric material having a loss factor greater than 0À1 has, for periodic currents, the properties of a predetermined passive two-terminal network of the kind shown in general form in Fig. 6. Capacitance C is finite and may be zero; resistance R may be infinite but is not zero. Each remaining branch of the network comprises a resistance R 1  . . . R n  which is finite and not zero, and a capacitance C 1  . . . C n  which is finite and not zero. At least two branches of the network have finite impedances. The dielectric material, e.g. barium titanate, a spinel, ferrite, or a mixed ferro-electric material, has statical permittivity e s , optical permittivity e r , electrical conductivity g s , optical conductivity g r , and relaxation time t i  (i=1, 2 . . . n) of its n dipoles, which satisfy the following equations: The solid body made of this material has a thickness A measured in centimeters in the direction of the electric field to be applied to it, and a cross-sectional area S measured in square centimeters perpendicularly to the said direction, which satisfy the equation: (8) S/A=1/g r (1/R+1/R 1 + . . . + 1/R n ). Examples of specific passive networks and of solid bodies which may replace them are given in the Specification.
Patent GB-708700-A (GB)
Title: Multilayer object consisting of foils made from detergents
IPC: C11D17/00
Filed: 1952-06-18
Abstract: <PICT:0708700/III/1> Multilayer objects, such as pads or booklets, of detergent foils or films have the foils stuck together in places by local pressing, so that single foils in a dry condition can only be separated from one another by tearing or cutting.  The use of wire staples, threads and glue is avoided.  A base, such as thin cardboard, may be used for the pack of foils, moistened before pressing on the side of the foil at the pressure point.  The base may be foled to form a cover on both sides, and in the form shown, a denotes the top cover, b the pack of foils, and c the point of pressure where the foils have been fixed one below the other and on to the base.  The foils may be fixed not only to the base but also to the top cover.  The pressure can be applied by rimmed flat bars or only partially pressing contacting surfaces so that the foils are stuck together by pressure at the desired place, preferably at one of the shorter ends of the pack.  The foils can be prepared by drying a solution of a detergent, coated on a suitable base, and shaving off the dried detergent with a tool adapted to skim off shavings. Suitable detergent solutions comprise:-(1) powdered sodium dodecylsulphate and Glauber or common salt dissolved in a 15 per cent. aqueous solution of a polyvinyl alcohol of average molecular weight 12,000; (2) the same powdered detergent and glycerine dissolved in a 16 per cent. aqueous solution of commercial methylcellulose; (3) powdered sodium benzene sulphonate and Glauber salt dissolved in an 18 per cent. aqueous solution of a polyvinyl alcohol as in (1); and (4) powdered Marseilles soap dissolved in the polyvinyl alcohol solution of (1).  The polyvinyl alcohol may be obtained by the partial saponification of polyvinyl acetate.
Patent GB-904661-A (GB)
Title: Improvements in or relating to the production of continuous patterns
Inventor: COOPER ARTHUR HENRY
IPC: H04N1/40
Filed: 1958-05-14
Abstract: 904,661. Engraving. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 14, 1959 [May 14, 1958], No. 15471/58. Class 100 (2). [Also in Groups XXXVIII and XL (b)] A method of producing a continuous pattern from a non-continuous pattern comprises deriving from portions of a non-continuous pattern which are to be joined to form said continuous pattern error information as to the mismatch between said portions, and utilizing said error information in the reproduction of said non-continuous pattern in continuous form to effect a variation of said pattern so as to produce a join between said portions which is less apparent than would be the case in the absence of said variation. The discontinuous pattern is scrutinized through an optical device giving a simultaneous view of two parts of the pattern a distance apart equal to the length of the desired pattern repeat. Two such parts are then chosen giving the least mismatching, and the error at various points across the pattern is measured by means of a rotatable periscope prism. The error is then plotted as a graph by the use of which a cam is produced having a contour representative of the error information. A sheet bearing a discontinuous pattern and with the selected repeat lines spaced 180 degrees apart is secured to a cylinder 14, Fig. 7. A carrier 17 movable axially of the cylinder by rotation of a screw 18 carries photo-electric scanning devices 19, 20 spaced apart 180 degrees round the cylinder, and an electromechanical engraving tool 21, responsive to the scanning of the pattern on the cylinder 14, to produce a continuous pattern on a cylinder 15, which is half the diameter of the cylinder 14 and rotates at the same peripheral speed. A rotary switch on the axis of the cylinder 15 effects a gradual transfer of control from one to the other of the scanners every half-revolution of the cylinder 14. In order to vary the continuous pattern produced in response to the error information so as to avoid an obvious join, the cam 25, Fig. 9, representing such information, is positioned axially of the cylinders and controls the positioning of the scanners, which are mounted so as to allow axial and circumferential movement with respect to the carrier 17. The cam transmits vertical movement to the contact 27 of a variable resistor 28 with a suitable voltage across it, so that a voltage proportional to the error is applied to a variable rotary resistor 29. A contact 30 rotating with the cylinder 15 transmits to the control units of the scanners a voltage which thus varies from zero to the voltage applied to the resistor 29, reaching the maximum as the scanning beams cross the repeat lines. The scanners are thus moved to vary the pitch of the scanning helix in such a way as to produce a gradual correction of the error. Specifications 796,994 and 866,319 are referred to.
Patent GB-777778-A (GB)
Title: Making pellets from thermoplastic material
Inventor: KING JOHN PHILIP HENRY
IPC: B29B17/00
Filed: 1954-05-26
Abstract: <PICT:0777778/IV(a)/1> <PICT:0777778/IV(a)/2> <PICT:0777778/IV(a)/3> A process for converting thermoplastic material in the form of thin narrow strips in continuous lengths into a form suitable for moulding comprises, as a continuous operation performed on the material while it is travelling, the following steps:-forming the material into a multi-layer strand, forming the strand into a substantially solid rod while the material thereof is in a heat-softened condition, and cutting the rod transversely into pellets.  Fig. 1 shows apparatus for doing this, in which two strips 10 pass between rolls 11, 12; through funnels 13 which fold the strips transversely into strands of greater thickness and less width; around guide pulleys 15, 16; through a funnel 17 heated by an electrical resistance 18; between nip rolls 19, 20 which draw the heated strip away from the funnel; through a device T that twists the heated strip; and so to an anvil 28 where a rotary cutter 29 cuts it into pieces.  The device T comprises two rollers 21, 22 housed in a frame 23 that is rotated about the longitudinal axis of the strip.  Fig. 3 shows a modified twisting device comprising a rotating tube 80 having a flared entry end 81 and a pinched exit and 811 slotted at 82.  The invention is particularly applicable to the treatment of strips which have been cut from the edges of extruded film, and Fig. 2 shows how the strips 10, which have been cut by knives 56 from an extruded film 50, are sucked by a rapid flow of air through a guide tube 57 and pass thence to the rolls 11, 12 of Fig. 1.  In modified processes which are not illustrated (a) the material may be heated before or during passage through a guide and then further consolidated by passage through a die or series of dies before being cut into pellets, and the dies may be rotated; (b) the formation of the strip into a multi-layer strand may be effected by drawing the strip through guide surfaces, die apertures or roll apertures, of successively diminishing size; (c) a current of air may carry the material from a twisting frame along a guide to the cutter; and (d) the strip may be heated by a stream of hot air just before it is folded.  The material may be a cellulose ester or ether, polyvinyl chloride, &c., polyethylene, nylon or polyethylene terephthalate.