baber/WOPTO huggingface dataset:
Patent GB-997654-A (GB)
Title: New carboxylic acid amide azo dyestuffs and processes for their manufacture
IPC: C09B43/32
Filed: 1963-09-30
Abstract: The invention comprises monoazo dyes free from acid water-solubilizing groups, of formula <FORM:0997654/C4-C5/1> wherein R1 and R4 are phenylene residues, R2 is a naphthalene residue in which azo, hydroxy and carboxy groups are in the 1-, 2- and 3- positions respectively, R3 is a phenyl or naphthyl residue free from aroylamino groups and R5 is a benzene residue which may be substituted. The dyes are prepared by condensing a monoazo dye carboxylic acid halide of formula <FORM:0997654/C4-C5/2> with an equimolar proportion of an amine of formula H2N-R4-NHCO-R5 or by coupling a diazonium compound derived from an amine of formula H2N-R1-CONHR3 with a compound of formula <FORM:0997654/C4-C5/3> or with a compound of formula <FORM:0997654/C4-C5/4> wherein A is the residue of an amine.  The dyes may be used to colour regenerated cellulose and synthetic resins, particularly polyvinyl chloride, in red shades.  The preparation of the dyes is described in examples.
Patent GB-1065523-A (GB)
Title: Improvements in or relating to direct current control systems
IPC: H02P7/29
Filed: 1963-10-01
Abstract: 1,065,523. Switching circuits. RAYMOND CORPORATION. Oct. 1, 1963 [Oct. 1, 1962], No. 38640/63. Heading H3T. [Also in Division H2] A controlled rectifier SCR and switching transistor Q9 are connected in series in a circuit supplying current from battery B to motor A, driving pulses being applied to both the control electrode of the controlled rectifier and the base electrode of the transistor. As soon as power is connected to terminal 11, capacitor C2 is charged at a rate determined by network C1, R1, until unijunction transistor Q1 conducts to discharge the capacitor C2, the resultant constant repetition ramp voltage from transistor Q1 being applied through transistor Q2 to a comparator circuit comprising transistors Q3, Q4. In the absence of a signal from transistor Q2, the voltage on line 14 is determined by potentiometer P1 coupled to speed control lever SC, the transistor Q4 being conductive and transistor Q3 non-conductive. The transistor Q3 becomes conductive when its base becomes more negative than the emitter of transistor Q4, so that ramp voltage pulses of selected width and constant repetition rate are provided on line 14. These pulses are channelled through differentiating circuit C3, R2, whereby width-modulated rectangular pulses are produced on line 15 which are referenced to earth so that the pulses fed to amplifier 16 have constant amplitude. When an amplified negative-going rectangular pulse is applied to the base of transistor Q5, the transistor Q6 applies a positive-going pulse through capacitor C4 to the gate of controlled rectifier SCR, and a negative-going pulse to the base of transistor Q9. Thus, full power supply voltage is applied to the motor for the duration of the pulse, the width of the pulses being determined by the setting of the potentiometer P1. A fixed positive bias from battery C and resistor R13 is applied to the base of transistor Q9 to insure minimum dissipation in the transistor throughout the intervals between driving pulses. The association of the controlled rectifier with the transistor allows reverse bias to be employed without encountering thermal runaway conditions. In another arrangement, the driving pulses are variable in repetition rate to turn the controlled rectifier and series transistor on and off, so that the average current supplied to the motor is controlled.
Patent GB-1561049-A (GB)
Title: Machine for renewing road surfaces
IPC: E01C23/14
Filed: 1976-09-20
Abstract: The machine has a chassis (1) which is provided with wheels (2, 3) and on which a cutting or stripping device (9) provided for removing the old surfacing and a coating device (11) provided for applying the new surfacing are arranged. The coating device (11) is connected via a conveying device (12) to a trough-like reservoir (15) for receiving the new surfacing material, which reservoir is situated on the front end of the chassis (1). The reservoir (15) is provided with support wheels (19) and articulated pivotably on the chassis (1) about a pivot (17) which runs horizontally or approximately horizontally and transversely to the direction of travel. As a result, on emptying of the reservoir (15), a non-uniform loading of the machine can be prevented or at least considerably reduced. <IMAGE>
Patent GB-870640-A (GB)
Title: Improvements in or relating to electric lamp assemblies
IPC: B60Q3/04
Filed: 1959-11-17
Abstract: 870,640. Indicator lights. UNITED-CARR FASTENER CORPORATION. Nov. 17, 1959 [Nov. 19, 1958], No. 38994/59. Class 75(4). [Also in Group XXV] An indicator lamp assembly comprises an insulating housing 12 supporting a lamp 14 and clip means for fastening the housing to a panel consisting of loop portion 26 engaging round the housing and a U-shaped portion 30 extending at right angles to the plane of the loop portion and having the outer ends 32 inclined outwardly to facilitate engagement with the support. The housing is of moulded plastic having a recess 20, Fig. 3, at one end to receive a socketless Neon lamp 14 and a pair of channels 21 extending from the recess to the other end of the housing to receive the leads 42 to the lamp. The panel on which the lamp is mounted has a projecting flange with which the clip can engage.
Patent GB-367505-A (GB)
Title: Improved method of and apparatus for baking sludgy material, such as cement
IPC: C04B7/44
Filed: 1930-12-30
Abstract: <PICT:0367505/III/1> In apparatus for burning or sintering sludgy material e.g. cement, the latter is sprayed or deposited on movable chains g or flexible devices traversed by the exhaust gases from a furnace in which the burning of the material is completed, the material being dislodged from the chains by rotating them on beams f into contact with stationary members i.  The receptacle a may be rotated by a worm b and the materials may be sprayed by nozzles d.
Patent GB-965434-A (GB)
Title: Process for the preparation of nitro derivatives from cyclic amides
IPC: D01D4/04
Filed: 1961-11-15
Abstract: An a -nitro-o -lactam is obtained by nitrating a 2-chloro-azacyclo-2,3-alkene N-carbochloride and hydrolysing the product, the pH being controlled by use of a base so that at least in the last stage of the hydrolysis it is 2-4. Examples prepare a -nitro caprolactam.  The reaction products can be reduced to a -amino-o -lactams, and these hydrolysed to a , o -diamino-carboxylic acids. Specifications 856,967, 867,268, 867,269, 901,169, 901,170 and 927,823 are referred to.
Patent GB-1526774-A (GB)
Title: Tiered grandstand
IPC: E04H15/20
Filed: 1975-09-25
Abstract: 1526774 Fixing furniture to floors G R CAMUSOT 25 Sept 1975 [27 Sept 1974 1 Aug 1975] 39287/75 Heading A4U [Also in Division E1] A tiered grandstand comprises at least one collapsible fluid-tight casing 2 which can be filled with fluid and/or solid and having a base portion adapted to rest on the ground and a top portion which forms a plurality of tiers. Flexible elements 3, 4 may be incorporated to hold the grandstand in shape. These may be cables or strips. Inflatable seats 52, 56 or moulded plastic seats 12 may be incorporated and may be attached by suction cups 18 or by resilient clips 34, Fig. 3 which clip on to tubes 28 when subjected to downward vertical force.
Patent GB-1411683-A (GB)
Title: Capacitance responsive control circuits
IPC: H03K17/945
Filed: 1973-08-14
Abstract: 1411683 Proximity switching systems WAGNER ELECTRIC CORP 14 Aug 1973 [14 Aug 1972] 39533/73 Heading G1N [Also in Division H3] A proximity switching system comprises a pulse energized oscillatory circuit whose Q factor is reduced by the loading effect of a proximate conductive body, and means to detect the resultant reduction in amplitude (or duration) of the "ringing" oscillations. As shown Fig.2 a pulse generator 20 (comprising Q 1 ,Q 2 ,) energizes in parallel two identical ringing and switching circuits. The upper circuit is described:- RINGING CIRCUIT. To ensure a sharp cut-off of the energizing pulse, the inductor L2 is fed through a bias circuit comprising a capacitor C5 and CHARGE-STORAGE DIODE D2 which blocks abruptly when the capacitor discharges in the reverse direction through inductance L2 after each positive pulse (C5 is not necessary if the oscillator output is negative i.e. below ground potential, between the positive pulses). RINGING ENHANCEMENT AND DECTECTION Q3 is connected in a Colpitts circuit with L2 but does not oscillate in the absence of positive bias. When the L2 circuit rings the positive peaks above a certain level drive Q 3  into oscillation to apply a signal to the output transistor Q 5 . A body proximate the antenna Al loads the ringing circuit so that the amplitude is not sufficient to drive Q 3 . Alternatively, a peak detector circuit may be used wherein the peaks of the ringing signal turn on a transistor to charge a capacitor Fig.3 (not shown).
Patent GB-1478390-A (GB)
Title: Trickle irrigation apparatus
IPC: A01G25/16
Filed: 1974-09-11
Abstract: 1478390 An electrically operated trickle irrigation device J R NYE 11 Sept 1974 [30 Nov 1973] 39603/74 Heading A1D When electric power is supplied to the solenoid switch 56 of a trickle irrigation apparatus comprising a water discharge manifold, a pump 16 connected to a water inlet via a conduit 26 and to an outlet which communicates with the manifold, the switch 56 closes and actuates the water pump 16 and when the water flow reaches a selected rate an arm 62 of a flow switch 14 connects terminals 64, 66 so that after a time delay dictated by a thermal switch 52 an arm 50 contacts terminal 68 and power is supplied to switch 56 by way of switch 14 to constantly energize the switch 56 to operate the pump 16 unless the selected rate drops and the arm 62 disconnects from the terminals 64, 66. While the pump is operating a white operating light 70 is switched on, and when the operation of the pump is terminated a red warning light 82 is switched on by a switch 76. Soil moisture sensors 93 of the device are embedded in the ground around the crop area where the device is used to turn pump 16 on and off depending upon the moisture content in the ground. When an overhead water supply source (10) is used a strainer 12 is placed before the pump 16 and flow switch 14 whereas the strainer, when a sub-level water source (34) is used, is placed after the pump 16 to overcome the loss of prime to the pump 16 during opening of a valve 36 to flush the debris of the strainer 12 Figs. 1 and 2 (not shown). When an overhead water source (10) is utilized a water valve 18 is provided to prevent gravity induced water flow in the device. Check valve 20 is used in both cases to prevent the reverse flow of water from the manifold into the pump 16.
Patent GB-995024-A (GB)
Title: Improvements in or relating to a high-speed loom for weaving narrow webs
IPC: D03D35/00
Filed: 1962-10-19
Abstract: 995,024. Looms; fabric selvedges. C. F. LIBBY. Oct. 19, 1962 [June 26, 1962], No. 39698/62. Headings D1E and D1K. In a shuttleless loom in which loops of weft are inserted by a finger 34, Fig. 4, there is provided at the end of the shed at which this finger is situated, and perpendicular to the plane of the fabric wire 50 which engages the weft thread during its insertion and so forms a loop extending beyond the edge of the fabric. The wire is moved in a closed curve by means of a lever 52, see also Fig. 3, which is pivoted at 64 and 68 and eccentrically driven at 54. A fancy pattern as in Fig. 5 is achieved by controlling the movement of the wire 50 towards and away from the edge of the fabric by means of a rod 70 attached to a pivoted arm 72 which is operated by a cam 78. Change of this cam will give different patterns to the fancy selvedge.
Patent GB-1175029-A (GB)
Title: Three-phase generator
IPC: H03K4/94
Filed: 1968-08-20
Abstract: 1,175,029. Control of A.C. motors. DANFOSS A.S. 20 Aug., 1968 [29 Aug., 1967], No. 39715/68. Heading H2J. [Also in Division H3] A three-phase oscillator has three identical units, each producing a trapezoidal waveform (a, Fig. 4, not shown), having three straight sections (12, 13, 14) per half-wave, each section being of 60 electrical degrees duration. The units are connected in a ring (Fig. 1, not shown) successive outputs (T, S, R) being shifted 240 degrees backwards (Fig. 2, not shown). Each unit (Fig. 5, not shown) consists of a square-wave generator (4) in which complementary transistors (Trl, Tr2) are either both on or both off, and change state when the input trapezoidal waveform (a) passes through zero, to produce a square wave (b). The magnitude of (b) is varied by applying variable D.C. bias levels (+B, -B) to diodes (E2, E3); and the resulting square wave (c) is integrated in an integrator (6) which includes two seriesopposed Zener diodes across the integrating capacitor to limit the amplitude (13) of the resulting sawtooth. For a given limit amplitude, and with the 60-degree duration for each part of the waveform, which is required to maintain oscillation. in the ring, variation of the slope of the trapezoidal waveform varies its frequency. The slope is varied by changing the square-wave amplitude by adjusting the bias levels (+B, -B).  In an asynchronous motor control circuit, Fig. 6, the motor 15 is driven by positive and negative supply voltages 16, 17 supplied alternately by switches 19, 20 which are operated alternately by the trapezoidal output of one unit 22 of the above generator. The frequency of the output R is varied in dependence on the value of the supply voltages 16, 17, controlled at 18, by means of potentiometers 23, 24 and 25, 26. Alternatively (Fig. 7, not shown), an external D.C. signal (B) varies the frequency and the supply voltages (27, 28) are varied by the unit (22). These circuits provide a given relationship between frequency and amplitude of the motor drive voltages to maintain constant torque with speed variation.
Patent GB-1517748-A (GB)
Title: Method and apparatus for producing a non-woven fabric
IPC: D04H3/04
Filed: 1975-09-29
Abstract: 1517748 Laying nets by winding CHAVANOZ SA 29 Sept 1975 [30 Sept 1974] 39807/75 Heading D1R One or more weft yarns 28, 30 are wrapped around yarn guides 38 by rotatable guide means the ends 34 of which travel in an elliptical path 140 thereby drawing the weft yarn(s) at substantially uniform velocity. As shown weft yarns 28, 30 pass through rotating tube 22, through tubes 20 and 21 respectively and finally through yarn end guides 34 which are mounted on sliding rods 130. Sun wheel 120 and shaft 22 drives planet gears 122, 124 and hence crank arms 134, rods 130 and guides 34. The threads engage the yarn guides 38 just before end guides 34 cross the major axis of the ellipse. Selvedge yarns (73, Fig. 2, not shown) pass through rotating helical springs acting as guides 38. One or two warp arrays 52, 54 are pressed onto the weft array by rolls 48, 50, the fabric is bonded by adhesive applied by roll 64 and dried by heated rolls 68.
Patent GB-874200-A (GB)
Title: Metal casting
IPC: B22D11/04
Filed: 1959-11-24
Abstract: 874,200. Continuous-casting machines. SOC. D'ELECTRO-CHIMIE,D'ELECTRO-METALLURGIE ET DES ACIERIES ELECTRIQUES D'UGINE. Nov. 24, 1959 [Nov. 27, 1958], No. 39913/59. Class 83 (1). A horizontal continuous-casting machine comprises a vertical container 1 and a flatfaced chill mould 7a in contact with the front of the container and a conically-headed mandrel 13a extending through a heat-insulating coating 14 in the container and projecting into the mould so that a tube may be cast, the mould containing an asbestos disc 25 through which the mandrel passes. The metal container 3 has an asbestos liner 4 and an asbestos front wall 5. The mould 7a of metal or graphite has a water-cooling passage 8 and spraypassages 10. The metal or graphite mandrel has water-cooling channels 18. The conicity of the mandrel prevents binding of the tube thereon. In a modification, the mandrelhead 35, Fig. 2, is pulled against an asbestos washer 38 by a nut 40. The mandrel 33 may have cooling passages.
Patent GB-999887-A (GB)
Title: Improvements in or relating to the manufacture of tubes, pipes and the like
Inventor: GRAHAM FRANK MAURICE
Filed: 1963-10-20
Abstract: 999,887. Making helically jointed tubes; coiling; welding by fusion. CLAYTON SON &. CO. Ltd. Oct. 4, 1963 [Oct. 20, 1962], No. 39770/62. Headings B3A, B3E and B3R. Control apparatus, for use in a machine for producing helically jointed tube from strip material in which the strip is fed against a forming head at an angle to its direction of travel to produce the required helical form, comprises a device sensitive to variance in strip width, means for adjusting the angle between the direction of movement of the strip and the tube forming head and an operative connection between the device and means so that automatic adjustment is made in accordance with any strip-width variation to bring the neighbouring helical edges of the tube towards one another. The machine comprises stands 12, 12a on which are mounted coils of strip S, S1, a submerged arc welding unit 23 for joining up the leading end of one coil to the trailing end of another, main drive and strip flattening roll units 13, 14, a strip locating mechanism 16, a tube forming head or die-plate 15, submerged arc units 17, 18 controlled by a panel 19 which externally and internally weld the abutting edges of the strip and tube guide members 21. The forward end 25 of the machine portion 10 is pivotally supported with respect to the part 11 while the rear end is mounted on  graduated guide rails 26 and is angularly adjusted by a double-acting hydraulic device 27. A pressure-sensitive strip width indicator 28 engages one edge of the strip, the other edge of which is biased by mechanical, electrical or hydraulic means against fixed guide rollers 30, and at intervals, of for example 2 seconds, sends an electric impulse in a known manner to a solenoid or magnetic valve 31 which controls the operation of the hydraulic ram 27. The ram adjusts the angular position of the machine part 10 to ensure that the adjacent helical edges of the tube are in abutment at the submerged arc welding station. Alternatively, the machine part 11 or the forming head 15 may be automatically adjusted. The portion 10 is preferably pivoted about a point located to one side of the machine and in alignment with the edge of the strip abutting the rollers 30. Specifications 998,406, 999,888 and 999,889 are referred to.
Patent GB-1353089-A (GB)
Title: Flyback transformer device
IPC: H01F27/32
Filed: 1971-08-25
Abstract: 1353089 Transformers MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 25 Aug 1971 [27 Aug 1970 (2) 11 Sept 1970] 39995/71 Heading HIT A flyback transformer comprises a transformer 2 having a core 2a, primary winding 2c and secondary winding 2b, and a high voltage diode 4 contained in a hermetically sealed metallic casing 1 which has the entire space therein filled with insulating oil, e.g. mineral oil, silicone liquid or alkylbenzene. The oil is such that the quantity of charge resulting from corona discharge between a needle electrode with a radius of curvature of 20 Ám. and a flat electrode spaced at 5 mm., both electrodes being immersed in the oil, is 100 pico coulombs or less when a flyback pulse of 15 kV is applied to the needle electrode. Low voltage input terminals 3 and high voltage D.C. output terminal 5 having conductors 3a and 5a respectively are provided on the casing. A moulded spacer member 8 of low specific inductive capacity material, e.g. polypropylene may be included to reduce the quantity of oil required to fill the space.
Patent GB-1385200-A (GB)
Title: Tow-craft for swimmer
IPC: B63B35/73
Filed: 1971-08-26
Abstract: 1385200 Tow-craft for swimmers A FRANCIS 14 Nov 1972 [26 Aug 1971] 40014/71 Headings B7A and B7V A tow-craft for a swimmer comprises a buoyant housing 12 having an internal combustion engine 30 disposed therein, with a drive shaft 56 extending in a rearward direction from the housing into impeller duct 70. Impeller 66 is mounted in a cylindrical portion of the duct and longitudinally aligned and circumferentially spaced inlet vanes 76 extend radially inwardly from the duet towards the drive shaft forward of the impeller. Rearwardly of the impeller the duct has a converging portion 82 in which substantially longitudinally aligned and circumferentially spaced outlet vanes 84 extend radially inwardly from the duct. As indicated in Fig. 8 (not shown), the axis of the aft portion of the duct may be offset so that the craft will tend to circle in the area of a swimmer who might lose his grip.
Patent GB-960334-A (GB)
Title: Improvements in or relating to power plant arrangements for automotive vehicles
IPC: B60K17/30
Filed: 1962-10-23
Abstract: 960,334. Vehicle independent wheel spring suspensions. FORD MOTOR CO. Ltd. Oc 23, 1962 [Nov. 30, 1961], No. 40032/62. Headings B7D and B7H. In a vehicle with a power unit resiliently connected to the body the wheels 26, 38 are connected tc the power unit by suspension arms 42, 52 and to the body by a trans verse leaf-spring 108. In the embodiment the leaf-spring 108 is clamped by U-bolts 110 to transverse body frame member 106 anc connected to wheel supports 40, 5( by ball joints 112, 114 incorporating mountings for telescopic dampers 116, 118. The power unit, com prising engine 10 and differentia and transmission gear units 12, 14 is connected to the wheels by drive shafts 20, 30 incorporating sliding spline joints 22, 32 and is sup ported from the body frame by resilient mounts 70, 92 and 94 which permit limited vertical movement but are resistant to horizontal movement. Mounts 92 and 94 are supported from body frame members 60, 62 by brackets 84, 86 (Fig. 3), and mount 70 is supported by cross-member 66. The joints connecting the steering arms on the wheel supports 40, 50 to the steering links which are mounted at their other ends on the body are arranged in the plane of the engine mounts to reduce steering effects due to roll of the power unit.
Patent GB-898996-A (GB)
Title: Improvements in or relating to an implement for the lateral displacement of crop lying on the ground
IPC: A01D80/00
Filed: 1959-03-31
Abstract: 898,996. Haymaking machines. VAN DER LELY, N.V., C. March 31, 1959 [April 18, 1958], No. 40441/60. Divided out of 898,994. Drawings to Specification. Class 6(3). The subject-matter of this Specification is the same as that of Specification 898,994 but the claims differ. Specification 898,995 also is referred to.