baber/WOPTO huggingface dataset:
Patent GB-1374197-A (GB)
Title: Balances incorporating counterweight addition and removal devices
IPC: G01G23/36
Filed: 1972-06-22
Abstract: 1374197 Weighing SARTORIUS-WERKE GmbH 22 June 1972 [23 June 1971] 29206/72 Heading G1N In weighing on an automatic balance, counterweights are added or removed in quick succession if an electric analogue proportional to the remaining unbalance exceeds the equivalent of two counterweights and with intervening delays to allow oscillations to die when the unbalance is less than this, and any residual unbalance after the last counterweight is measured by a digital voltmeter. A delay incorporated in the digital voltmeter allows initial oscillations to die before any counterweights are added or removed.
Patent GB-1276367-A (GB)
Title: High power carbon monoxide gas laser
IPC: H01S3/223
Filed: 1969-06-10
Abstract: 1276367 Lasers WESTINGHOUSE ELECTRIC CORP 10 June 1969 [26 June 1968] 29252/69 Heading H1C A gas laser uses a molecular gas such as carbon monoxide as the active medium at a pressure of between 0À1 and 2À0 atmospheres. The gas is contained in a tube 4, Fig. 1, of rectangular cross-section, which is terminated by Brewster angle windows 6, 7 and has internal electrodes 14 extending the full length of the tube. Resonator mirrors 8, 9 are mounted externally of the tube by sleeves 5, 11, the mirror 8 being partially transmitting and mechanically adjustable. The spaces 13 formed by the sleeves may be evacuated or filled with nitrogen, neon or glass. Laser action is produced by transitions between vibrational levels, the gas discharge establishing the high thermal conditions necessary being produced by a high voltage supply 18 connected to the electrodes through a pulseforming network 16. The discharge is initiated by pulsing a source of ultra-violet radiation 15, such as a Xenon flash lamp, from a high voltage source 17, the radiation activating the cathode electrode which is formed of an ultra-violet photo-electric material such as copper, silver, tungsten, gold or aluminium. The arrangement is immersed in liquid nitrogen 12 in a dewar 10. In a modification, Fig. 10 (not shown), external electrodes are used which are connected to an R.F. excitation source. Isotopic nitrogen may be included in the gas.
Patent GB-707261-A (GB)
Title: Improvements in process for coating metals with aluminium
IPC: C23C2/12
Filed: 1951-12-14
Abstract: A flux comprising a fluoride compound of titanium or zirconium is applied to a cleaned surface of cobalt, chromium, nickel, iron or an alloy thereof, prior to coating by contact with molten aluminium or an alloy thereof.  The compound may be titanium or zirconium fluoride or a double fluoride thereof with an alkali metal, and may be applied in aqueous solution, e.g. by spraying, dipping or painting.  After applying such a solution, which may contain an addition of potasium chloride or an alkali metal fluoride, the base may be dried in air at 85 DEG C. and then coated by immersion in molten aluminium; the drying step may however be omitted.  Alternatively, the compound may be applied in a fused salt bath consisting principally of alkali chlorides.  The coating bath, which may be at 1220-1240 DEG F., or the article may be vibrated during coating.  An alloy coating bath containing 1.5 per cent. manganese and 0.25 per cent. titanium is referred to.  When p  zirconium salts are used, the coating formed contains from a fraction to several per cent. of zirconium.
Patent GB-730003-A (GB)
Title: Improvements in and relating to antenna systems
Inventor: FOSTER KENNETH
IPC: H01Q19/17
Filed: 1950-12-01
Abstract: 730,003. Aerials. COSSOR, Ltd., A. C. Dec. 3, 1951 [Dec. 1, 1950], No. 29519/50. Class 40 (7). An aerial comprising a slotted wave-guide 1 mounted at the focus of a " cheese " reflector 6 comprises also a body of dielectric material 3 placed in the path of energy passing between the wave-guide and the reflector and preferably affixed to the surface of the wave-guide, in order to cause, in the case of the aerial being-used for transmission, substantially all the energy radiated from the wave-guide to impinge upon the reflector and thus reduce loss by lateral radiation from the slots. Fig. 4 is a front view of the radiating face of the wave-guide upon which is mounted an equilateral-triangular prism of dielectric material. The radiating slots 2 are displaced in alternately opposite directions from the centre line of the face of the wave-guide, the inner two slots being displaced to a greater extent than the outer two. The wave-guide 1 is attached to the upper and lower surfaces 4 and 5 of the reflector by means of the brackets 7, spacing washers being inserted as necessary between the guide and the brackets to adjust the position of the guide with respect to the focal line of the reflector. In a modification, Fig. 7, the wave-guide 14 comprises two radiating slots which are both displaced in the same direction with respect to the centre line of the guide face, a dummy metallic element 18 being attached to the waveguide so as to. broaden the slotted face thereof and make the slots lie centrally with respect therewith.
Patent GB-648056-A (GB)
Title: Improvements in or relating to harrows
IPC: A01B23/02
Filed: 1948-11-15
Abstract: 648,056. Harrow teeth. TAYLOR, J., TAYLOR, W., and TAYLOR, C. Nov. 15, 1948, No. 29643. [Class 6(i)] A harrow tooth 1 is welded to a plate 2 which is formed at one end with a pair of upwardly-turned lugs 3 to engage the harrow frame 7, and at the other with a hole 5 through which passes a bolt 6 for securing the plate and attached tooth to the frame 7. The portion of the weld 4 nearest to the bolt is ground flat to form an abutment 9 for the flats of the bolt head.
Patent GB-957678-A (GB)
Title: A device for starting the seconds hands of a precision running clock driven by a synchronous motor
IPC: G04C15/00
Filed: 1960-08-29
Abstract: 957, 678. Electric clocks. ELEKTROCAS NARODNI PODNIK. Aug. 29, 1960 [Sept. 3, 1959], No. 29665/60. Heading G3T. In an electric clock a synchronous motor M drives the going train through a clutch K. The going train closes a switch km every minute and a switch ks every second to energize an electromagnet Q which releases the clutch K and applies a brake F to the going train. When the receiver R receives a synchronizing time signal the electromagnet Q is de-energized so that the clutch K is re-engaged and the brake F released.
Patent GB-1146185-A (GB)
Title: Filter
Inventor: ROWORTH DONALD ANTHONY ACOTT
IPC: G10L25/00
Filed: 1966-07-01
Abstract: 1,146,185. Vocoder; variable-bandwidth circuits. STANDARD TELEPHONES & CABLES Ltd. 1 July, 1966, No. 29685/66. Headings H3T and H4R. A speech synthesizer channel includes a resonant filter with an electronically variable damping resistor. Fig. 2 shows an embodiment of the filter which comprises a parallel resonant circuit including inductor L1 and capacitor C1 fed, via transistors Q3 and Q4, with pitch pulses or noise from the respective channel modulators, not shown. A transistor Q5 is connected in series with a resistor R1 so that critical damping is applied to the resonant circuit whenever Q5 conducts, which is arranged to occur for a short time immediately before each pitch pulse occurs, so that interference between successive pitch pulses is avoided. A further transistor Q6 is arranged in the resonant circuit and has an impedance dependent on the control voltage applied to its base so that the Q of the resonant circuit may be varied to affect the quality of the reproduced speech. The transistors Q5 and Q6 may be symmetrical transistors as shown or field effect transistors. In an alternative arrangement, Fig. 5 (not shown), a series resonant circuit is used and the variable damping may be applied to the secondary of a transformer whose primary forms the resonant circuit inductor. A resonant filter as described above may be provided in each channel of a vocoder synthesizer, Fig. 1 (not shown), or a number of filters, one for each formant, may be arranged in series, Fig. 11 (not shown), in an artificial speech synthesizer.
Patent GB-716370-A (GB)
Title: Improvements in apparatus for counting or removing faults from yarns and threads
Inventor: MATTHEW JOHN ALEXANDER
IPC: B65H63/06
Filed: 1950-12-05
Abstract: 716,370. Fluid-pressure servomotor-control systems. LINEN INDUSTRY RESEARCH ASSOCIATION. Dec. 4, 1951 [Dec. 5, 1950], No. 29689/50. Class 135. [Also in Groups IX, XXXVI and XL (b)] In pneumatic apparatus for testing a yarn 6 during reeling or winding (see Group IX) the running yarn passes over identical orifices 77a, 78a in V guides of gauging heads 77, 78 connected to air-tight chambers supplied with compressed air from a constant pressure source B1 through identical lengths of constrictors 79, 80. A pressure gauge sensitive to differences in pressure behind the two air jets in the heads 77, 78, due to variations in size of a length of yarn over the head 78 and the average size of the running yarn, controls an electronic trigger device (see Group XL(b)) as through a switch arm 84 and contacts 85, 86, or a pneumatic and mechanical device (not shown), for stopping or cutting the yam. In the form of differential gauge illustrated, two pneumatic diaphragms 83 are connected with a small volume chamber behind the test jet at 78a, and with a larger volume chamber behind the head 77, through a capillary tube 82, which controls the rate of damping of rapid pressure variations behind the air jet at 77a, and the diaphragms 83 operate in opposition on the lever 84.
Patent GB-723848-A (GB)
Title: Improvements in water infuser apparatus for use in laying dust in coal mines and like workings
Inventor: LAMB HAROLD THOMAS
IPC: E21F5/18
Filed: 1952-11-25
Abstract: 723,848. Laying dust in mines. HUWOOD COMPONENTS, Ltd. Nov. 25, 1953 [Nov. 25, 1952], No. 29771/52. Class 85. In water infuser apparatus, for use in laying dust in coal mines and like workings, of the kind in which water is forced through a central tube 6 into a bore 7 in the coal face and the bore is sealed by a resilient seal which is actuated by the water pressure, a valve is incorporated for controlling the flow of water. The seal comprises a cup-shaped member 12 secured to one end of the tube 6, the other end of the tube 6 being secured to a piston 8 disposed in a cylinder 1, and a cup-shaped member 11 secured to the cylinder 1 by an intermediate tubular casing 10. Rubber members 13 separated by rigid double-conical members 14 are disposed between the cups 11, 12. A valve face 17a on a valve stem 17 cooperates with a seating on the end of the tube 6. The valve is controlled by the rotation of a handwheel 19 secured to the other end of the stem 17. The piston 8 has bores 8bb which communicate between the face of the piston and the end of the tube 6 when the valve 17 is open. In operation, with the valve 17 in the closed position, water under pressure is admitted to the inner end of the cylinder 1 through a cock 3. This forces the piston 8 along the cylinder thereby causing the cup member 11, 12 to compress the rubber members between them and thus seal the bore, as shown in Fig. 2. The valve 17 is then opened and high pressure water passes down the tube 6 to the space beyond the packing. In a modification the rubber elements are held spaced from the tube 6 by flanges on the rigid members.
Patent GB-533491-A (GB)
Title: Improvements relating to cable grips
IPC: F16G11/04
Filed: 1939-11-11
Abstract: 533,491. Cable grips. HOPE & SONS, Ltd., H., and STANLEY, B. E. Nov. 11,1939, No. 29895. [Class 78(ii)] A cable grip comprises a longtitudinallysplit casing a housing a pair of wedge-shaped members d, d<SP>1</SP> pressed into engagement with the rope by cams j on a shaft i rotated by the hand lever k. The cams engage the exterior of the jaw d<SP>1 </SP>and press both jaws against the casing. The pull of the cable in one direction causes the jaw d to coact with the wedge-shaped portion m of the casing and the jaw d<SP>1</SP> with the bevelled edges of the cams j to increase the grip. Flanges e on the jaws prevent complete detachment from the casing, while a projection g, bolted to one jaw and sliding in a slot in the other, prevents relative longtitudinal movement of the jaws. Screwmechanism may be substituted for the cams to close the jaws.
Patent GB-893155-A (GB)
Title: Kelly bushing
IPC: E21B3/04
Filed: 1959-09-02
Abstract: 893,155. Boring earth. AMERICAN IRON & MACHINE WORKS CO. Inc. Sept. 2, 1959 [Sept. 2, 1958], No. 29964/59. Class 85. A kelly bushing comprises a number of cages mounted on horizontal pivots and each carrying a roller above and below its pivot, each pair of rollers bearing on one of the plane surfaces of the kelly, to impart rotational torque thereto. The body 10 of the bushing has a circular base 11 with a squared part 12 for fitting in the conventional rotary table. The base 11 has four posts 30, 32, 34, 36 substantially L-shaped in section, the limbs of the L being bored at 70 so that four pivot pins 72 for the cages may be supported in the four pairs of aligned holes 70 in which they are retained by washers 76 engaging recesses 74 in the ends of the pins. The cages are of H form, the pin 72 in each case passing through the cross-bar of the H. Between the upper legs 101, 102 of the cages, rollers 103, and between the lower legs 103, 104, rollers 104a are journalled on shafts 107 which also are retained by washers 110 engaging recesses 116. The pin 72 is recessed at the end to accommodate grease gun nipples 89, the grease duct 86 having radial branches 85 supplying a reservoir groove 83 in the bronze bush 82. The rollers are similarly lubricated by grease gun nipples 115, 114, access to the nipples being provided by openings in the casing 15, and in the posts, and in a dome 58 which is located on and secured to ledges on the tops of the posts 30, 32, 34, 36. The posts are disposed asymmetrically around the axis of the kelly, being displaced clockwise. With this arrangement, the four cages may have cylindrical rollers to engage the four flats of a square kelly, or, as shown in Fig. 2, two of the cages may have conical rollers for engaging a hexagonal kelly. The asymmetrical arrangement necessitates the top and bottom conical rollers 155, 156 in each cage, which face in opposite directions, to be large and small, it being preferred that the charge rollers 155 should be at the top. The small conical rollers end in a cylindrical part 181, a stress relief groove 182 being provided.
Patent GB-838866-A (GB)
Title: Improvements in bottoms for shoes and the like
IPC: A43B13/22
Filed: 1958-09-19
Abstract: 838,866. Shoe soles. LOMBARDO, P. Sept. 19, 1958, No. 30049/58. Class 17(2) The wear, surface of a shoe bottom is formed with two longitudinally extending sets 2, 3 of transverse ribs with one set 3 located at the centre part and surrounded by the other set 2, and the ribs are of tapered cross-section with the heightwise axis of the ribs of one set inclined to the normal in the opposite direction to the ribs of the other set. The sole is moulded from flexible rubber or plastic. The ribs of the outer set 2 are of approximately equal length. A smooth portion is provided at the heel tip 6 and toe tip 7. Each rib has one surface 4 normal to the length of the shoe bottom, and the other, 5, at an acute angle.
Patent GB-1029195-A (GB)
Title: Automatic paralleling system for alternating current generators
IPC: H02J3/42
Filed: 1963-07-30
Abstract: 1,029,195. Synchronizing alternators. WESTINGHOUSE ELECTRIC CORPORATION. July 30, 1963 [Aug. 9, 1962]. No. 30076/63. Heading H2H. A synchronizing circuit for two alternators 10, 11 comprises a transformer 18 supplying a difference in phase voltage through a diode 20 to a smoothing capacitor 21 and a potentiometer 19. When the generators are nearly in phase, the voltage V 1  applied to a Zener diode 22 is below the breakdown voltage of the diode 22 hence current will flow to the gate of a thyristor 24 through a resistor 25 making the thyristor conductive. When the frequency difference is small, the voltage V 3  from a longtime constant circuit 41-45 is alternately above and below the breakdown value of a Zener diode 44, hence through transistors 46, 48 the thyristor is intermittently shunted sending pulses through a capacitor 31 to a transistor 32 which conducts. This blocks another transistor 33 raising the gate electrode potential of another thyristor 34 or other solid state device to its anode potential through a resistor 38, hence this thyristor fires and closes the circuit breaker 15 through a coil 16.
Patent GB-1130430-A (GB)
Title: Improvements relating to spinnerets and their manufacture
IPC: D01D4/02
Filed: 1966-07-05
Abstract: 1,130,430. Making nozzles. UNIROYAL Inc. 5 July, 1966 [22 July, 1965], No. 30131/66. Heading B3A. [Also in Division B5] A method of forming an extrusion orifice in a spinneret plate comprises drilling at least two contiguous parallel bores in the plate, removing any metal bounded by the bores and inserting a pin into each of the bores with part of its surface co-operating with the other pin or pins to define the orifice. The plate 10 may have any number of contiguous bores 24-26. Initially a single bore 21 is drilled about half-way through the plate and then the bores 24-26 are drilled from the other side. The pins 27-29 are inserted in the bores and may be held in position by silver solder or by grinding the plate to cause the metal to flow over the ends of the pins. The co-operating surfaces of the pins may be grooved, Figs. 8, 9 (not shown), or at least one may have concave or planar surfaces, Figs. 10, 11 (not shown). When only two pins are used to define the orifice, they are both grooved. The pins defining each orifice do not have to be identical.
Patent GB-382077-A (GB)
Title: Improvements relating to the filling of cans and the like with liquids
IPC: B65B3/24
Filed: 1931-10-31
Abstract: 382,077. Filling cans &c. McCONNEL, F. W., Barbers, Martley, Worcestershire, and MATHER & PLATT, Ltd., Park Works, Manchester. Oct. 31, 1931, No. 30231. [Class 125 (ii).] A machine for filling cans &c. with liquid, particularly for filling cans of fruit with syrup, comprises a rotary head consisting of two disclike parts a, d, the cans being carried on the disc a at an inclination to its axis, and preferably spaced by a star-wheel c, while the upper disc d turns about an inclined axis hand delivers the liquid into the cans through vessels j which have perforated bottoms. The cans, containing fruit only, are fed on to the disc a when the disc d is furthest from it and liquid (syrup) is then run in. As the discs a, d approach each other displacing projections i, grooved on their sides, enter the cans and displace some of the liquid which overflows through pipe m and is returned to the reservoir. The disc a is rotated by bevel wheels b and drives the disc d through toothed gearing e, f. In a modification, Fig. 2, the disc d is formed without displacers i, its lower perforated surface acting as a temporary lid, when the discs a, d approach nearest each other, to prevent fruit from being washed out of the cans r when liquid is being run in through a pipe o and vessels j. In this latter instance the provision of an air space in the cans above the liquid is obtained solely by the tilt of the cans on the disc a. The top disc d, Fig. 2, is driven from the lower by a pin p passing through an elongated slot q.
Patent GB-1011158-A (GB)
Title: Improvements in or relating to drum loading
Inventor: HOER KENNETH GEORGE
IPC: H04N1/08
Filed: 1963-07-31
Abstract: 1,011,158. Copying telegraphy. MILLER BREWING CO. April 14, 1964 [Jan. 16, 1963], No. 30303/63. Heading H4F. Sheet copy material is attached to the rotatable drum of a facsimile transmitter or a sheet of sensitized recording material to a correspondingly rotatable drum of a facsimile receiver, by a procedure wherein the pliant sheet is located and the edge thereof is presented to the peripheral surface of the drum, a strip of adhesive tape is first supported across and adjacent to the drum surface and is then lowered towards the drum surface to overlie the edge of the sheet and the drum surface and is finally rolled on to the sheet edge and drum surface. In the arrangement shown the pliant sheet 19, Fig. 1, is located between a platform 14 and a hinged flap 15 such that its edge just touches drum 2. A handle-bar 21 is pivoted by arms 22, about points b, Fig. 3, at the ends of two arms attached to platform 14. A roller 24 is carried at the lower ends of arms 23 which are pivotly joined to arms 22 at pivot points a. The ends of the roller 24 are constrained to move in arcuate slots in guide plates 25, such that downward movement of bar 21 causes the roller to travel along the surface of the drum and press down the edge of the pliant sheet. Fixed to arms 23 are cam-plates 26 having slots 29 cut therein. A bell-crank 27, Fig. 3, is pivoted about point b and has a pin 28 constrained to move in slot 29. Fixed to the lower end of bellcrank 27 is a tape support arm 30, on the end of which the end of the adhesive tape 37 is placed. A second tape arm 30a is similarly provided. A latching lever 35 is pivoted at point b and has two latching notches 33 and 34, co-operating with a latching pin 32, Fig. 1, on the side of drum 2. In operation pin 32 is caught in notch 33, the adhesive tape is laid between the two tape arms 30 and 30a and the edge of the pliant sheet is positioned to touch the drum 2. Handle bar 21 is brought down causing roller 24 to start moving along the drum surface. Cam-plate 26 is moved such that pin 28 moves into its deepest part and the adhesive tape is lowered on to the edge of the pliant sheet and the drum. Further downward movement of handle-bar 21 causes roller 24 to roll over the tape, pressing it down, and the tape supporting arms to move farther down, thus releasing the ends of the adhesive tape. Handle-bar 24 is returned to its upper position, pin 32 is released from notch 33 and the drum revolved, winding on the pliant sheet, until pin 32 catches in notch 34. The second edge of the pliant sheet should now be in position for attachment to the drum. A second strip of adhesive tape is fixed to arms 30 and 30a and the attaching process repeated. When not in use platform 4 and the attaching mechanism are all swung under the table carrying the drum and its accessories, using arm 6 and guide rail 10.
Patent GB-733297-A (GB)
Title: Attachment for use with containers for paint and like liquids
Inventor: ASPREY KENNETH MICHAEL FORSTER
IPC: B44D3/12
Filed: 1953-11-03
Abstract: 733,297. Paint-tin attachment. JENSON & NICHOLSON GROUP, Ltd., [formerly JENSON & NICHOLSON, Ltd.]. May 31, 1954 [Nov. 3, 1953; Nov. 14, 1953], Nos. 30336/53 and 31644/53. Class 66. An attachment for use with a paint tin or similar liquid container 4 comprises a flared tubular body 1 having at or near to its smaller end an external annular flange 2 with a peripheral skirt 3 adapted to be applied to the end of the container with its flange engaged by the rim, the skirted flange being adapted alone, e.g. by providing slits in its skirt, or in conjunction with auxiliary fixing means, e.g. clamping screws, to make retained engagement with the container. The smaller end of the flared body 1 may extend through and beyond the annular flange 2 or it may be provided with a right cylindrical extension to which the annular flange is attached. The edge 7 provides a scraper for brushes and the device enables the tin to be used as a paint kettle. A pivoted handle 9 may be provided and the embodiment shown may be made of spun aluminium.