baber/WOPTO huggingface dataset:
Patent GB-178419-A (GB)
Title: Improvements in and relating to circular knitting machines
IPC: D04B9/00
Filed: 1922-03-10
Abstract: 178,419. Schlesinger, A. April 15, 1921, [Convention date]. Circular machines.-Subdivided tubular fabric or separate strips of fabric are made on a machine provided with a number of groups of needles a, b, one to each strip or subdivision, and with corresponding cams c, d, and feeders e, f. A row of loops is first made by traversing the cams c. d and feeders e, f over the needles, the next row is obtained by traversing the needles in the same direction over the cams c, d and feeders e, f, and so on. By replacing at a determined moment the intermittent part-revolutions by a continuous movement of the needle cylinder or cam-ring, a partly subdivided tube as shown can be obtained. If the cams c are placed vertically below the cams d an unsubdivided tube is formed. The Specification as open to inspection under Sect. 91 (3) (a.) comprises also a statement to the effect that the invention is applicable to the production of ribbed fabric. This statement doesnot appear in the Specification is accepted.
Patent GB-1158094-A (GB)
Title: Process For Producing Ethylene
IPC: C10G9/14
Filed: 1968-02-13
Abstract: 1,158,094. Ethylene. SOC. ITALIANA RESINE S.p.A. 13 Feb., 1968 [23 Feb., 1967], No. 7142/68. Heading C5E.  Ethylene is produced by the thermal pyrolysis of hydrocarbons having a boiling point above 300‹ C., e.g. fuel oils, comprising mixing the pre-heated feedstock with superheated steam (primary), passing the mixture through a gas-liquid separator to collect any hydrocarbons not entrained by the steam, adding additional superheated steam (secondary), then introducing the mixture, e.g. at 450-550‹ C. into a tubular pyrolysis reactor at elevated temperature, e.g. 700-800‹ C. where pyrolysis takes place and recovering ethylene from the pyrolysis products. The amount of primary  steam may be 0.1-0.5 parts by wt. for each part by wt. of hydrocarbon. Secondary steam may be added at the inlet to the tubular reactor and the total amount of steam introduced may be 0À5-5À0 parts by wt. The pyrolysis reaction may be alternated with regeneration periods to eliminate coke from the tubes of the pyrolysis reactor wherein a mixture of steam and air is passed through the tubes at 750-950‹ C.
Patent GB-252831-A (GB)
Title: Improvements in or relating to starting devices
IPC: F02N15/04
Filed: 1925-03-17
Abstract: 252,831. Trail. H. H. March 17. 1925. Turning-gear.-A starting-device for internalcombustion engines suitable for vehicles comprises a pair of intermeshing pinions 4, 5 adapted to make and break driving connection with a toothed wheel 1 on the engine shaft. The pinion 4 is fast on the starting-shaft 2. The pinion 5 is carried in a casing 3 with curved back and lateral walls shrouding both pinions and pivotally mounted on the shaft 2. A massive abutment 8 normally holds, by its weight, the pinion 5 out of mesh. When the shaft 2 starts up, the casing 3 is carried toward the wheel 1. When the pinion 5 is fully in mesh, the abutment 8 engages a fixed stop 7 and the wheel 1 is driven. As the engine starts up, the wheel 1 throws the pivoted system back out of the way.
Patent GB-285266-A (GB)
Title: An improved combined electric and magnesium flash lamp apparatus for photographic purposes
IPC: F21K5/08
Filed: 1927-06-18
Abstract: 285,266. Murray, W. June 18, 1927. Magnesium lamps.-An electrically ignited magnesium flash lamp and an electric incandescent bulb lamp mounted on the door c of a box a are controlled by a single hand switch k. The box a contains a battery b the terminals of which engage terminals h, i on the top of the box. The terminal h is connected through one lead of a 3-way cable to a terminal k<1> in the hand switch. On pressing a thumb push l in the hand switch against the resistance of a spring l<1> a contact member l<2> connects the terminal k<1> with a terminal k<2> which is connected through a second lead in the cable j and contacting terminals m, n on the box and door to one terminal of the lamp bulb o. The other terminal of the lamp bulb is connected to the terminal i. A spring catch p holds the contact member l<2> bridging the terminals k<1>, k<2> while the camera is focussed. On pressing a thumb-push v in the hand switch the spring catch p is moved to release the contact member l<2> and a contact member v<2> bridges the terminal k<1> and a terminal v<1> which is connected through the third lead in the cable j and contacting terminals w, x on the box and door to one of two spring contacts u by which the base s of a magnesium cartridge r is secured against guides t on the door. The other contact u is connected through a wire y of the terminals i. The terminals of the fuse wire in the cartridge contact with the spring contacts u. The box is fitted with a strap q to facilitate its attachment to a camera or other support. The cartridge r has a divergent cardboard casing fitted with a loose paper cover.
Patent GB-549310-A (GB)
Title: Improvements relating to change speed gearing
IPC: F16H63/30
Filed: 1941-06-09
Abstract: 549,310. Variable-speed gearing. WOODHOUSE & MITCHELL, Ltd., and WALKER, D. June 9, 1941, No. 7268. [Class 80 (ii)] [Also in Group XXII] In change speed gearing the gear control handle d moves the sliding-gear operating arm g for changing the gears in the gear box and also moves a notched or cam plate f. The latter cooperates with a spring loaded plunger h actuating an electric switch i controlling the current supply to the driving motor a. The arrangement shown, which is for a capstan, turret or like lathe also includes a change and reverse gear in the headstock, the two gears being interconnected by belt gearing c. The headstock gear also embodies an actuating handle j and cam plate which function in a similar manner to the handle d to cut off the power supply to the motor a when changing or reversing gear.
Patent GB-1409647-A (GB)
Title: Integrated radar-pneumatic altimeter display device
IPC: G01C23/00
Filed: 1974-02-18
Abstract: 1409647 Indicating measurement INTERCONTINENTAL DYNAMICS CORP 18 Feb 1974 [20 Feb 1973] 7302/74 Heading G1J An aircraft altimeter display shows on a single dial face altitude readings derived from a barometric pressure altimeter and a radar altimeter. An analogue signal from the radar altimeter is converted to binary coded decimal digit signal groups controlling respective digits of an electronic decimal multi-digit display behind a window 19 in the dial face. As shown, the barometric altitude is displayed by a pointer 12 movable in front of the dial face over a peripheral scale with markings 0-9 indicating hundreds of feet, with a digital counter 11  behind a window 13 showing thousands (14b) and hundreds (14a) of feet, but an alternative display, such as one using three coaxial pointers, or drum pointer, may be used. The barometric system, Fig. 3, has a diaphragm type pressure altitude mechanism 75 driving the pointer 12 and counter 14(11) via a shaft 76. The barometric setting of the mechanism 75 is manually adjustable by a knob 16, the setting being shown on a tape or drum counter 17 visible through a window 18 in the dial face. In the radar altimeter display circuit 30, Fig. 2, the non-linear D.C. input signal 31 is applied via a buffer 32 to an anti-log circuit 33 to give a signal directly proportional to altitude. This signal passes via a switch 35 to an analogue-to-digital converter 43 which controls decoders 46, 45 driving seven segment digital display elements 48, 47. The units element 50 is shown hard-wired to display O, but may also be controlled from the converter 43. A knob 23 Fig. 1 controls a display brightness potentiometer 55 for the elements 47, 48, 50. A voltage from the radar altimeter to line 53 is continuous when the altimeter is functioning properly, and enables the brightness control circuit 54. Failure of the altimeter blanks the display. The altitude input signal 31 is also passed to a discriminatory circuit 57 to blank the display above 1,000 feet. The minimum decision height (MDH) is set by fully depressing a knob 20 and turning it to adjust a potentiometer 37, partial or full  depression of the knob 20 actuating switch 35 so that the MDH set value is shown on the display elements 47, 48, 50. A circuit 34 compares the linearized altitude signal with the MDH signal to actuate a visual and/or audible alarm if the actual height is less than or equal to the MDH.
Patent GB-937822-A (GB)
Title: Improvements in and relating to conveyor arrangements
Inventor: PROWSE DONALD WINDSOR
IPC: G05D7/06
Filed: 1959-03-03
Abstract: 937,822. Automatic control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 1, 1960 [March 3, 1959], No. 7381/59. Class 38 (4). A conveyer system for delivering loose material at a desired rate includes a first conveyer delivering material at a given rate and a second conveyer controlled to deliver material at a rate corresponding to the difference between the desired rate and the actual delivery rate of the first conveyer. As shown, a conveyer 4 driven at constant speed moves material from a tippler 2 to a shoot 1 at a given rate ascertained by a weighing beam 5. A second conveyer 6 is fed through a vibrator 3, and a weighing device 7 controls the excitation and thereby the speed of a motor 8 driveng the vibrator 3 so as. to maintain the load weight per unit surface of the conveyer constant. The motor 8 and a motor 9 driving the conveyer 6 are supplied from a generator 10 the excitation of which is controlled by an amplidyne 11 having three field windings F1, F2 and F3, energized respectively by a reference voltage, by a signal from the device 5, and by a tachogenerator TG coupled to the motor 9. Windings F2 and F3 oppose the effect of winding F1. If the weight of material provided per time unit by the tippler 2 decreases, the generator 10 supplies a higher voltage to motors 8, 9 so that while the loading of conveyer 6 remains constant the speed of the conveyer and therefore the rate of supply per unit time to the shoot 1 increases until the total rate determined by the reference voltage at winding F1 is obtained.
Patent GB-213574-A (GB)
Title: Penholder
IPC: B43K3/00
Filed: 1924-03-24
Abstract: 213,574. Gnehm, r. March 27, 1923, [Convention date]. Penholders; preventing cramp; reservoir pens. -In a penholder of the type in which the nib is held by a clamp movable in the shaft, the clamp is loosely mounted in a recess of oval cross-section, so that it can move longitudinally but not transversely, and can rotate on its axis for adjustment of the nib relative to the writing- surface. The nib is held by a spring e in a circular clamping-sleeve d mounted in an oval sleeve b secured in a recess in the shaft a, the external diameter of the sleeve d being equal to the shorter axis of the sleeve b. A wire spring h is mounted in a groove in the wall of the recess, its rear end being inserted in a hole, in the sleeve b and its front end being bent to embrace the sleeve d, so that the front end of the sleeve is drawn downwards, and the upward movement of the sleeve during writing is partly taken up by the spring in order to reduce the liability @ cramp. An externally-roughened cap k, provided with a crescent-shaped slot for the passage of the nib, is fitted on the end of the shaft a. The device may be used in connection with reservoir pens.
Patent GB-1239856-A (GB)
Title: Dielectric level sensor
IPC: G03G15/08
Filed: 1969-02-12
Abstract: 1,239,856. Toner powder level sensor. RANK XEROX Ltd. Feb. 12, 1969 [Feb. 13, 1968], No. 7585/69. Heading G2H. A level sensing apparatus for determining the quantity of toner powder within a dispenser of the kind described in Specification 1, 135, 742, having a reciprocating bottom plate, operates by measuring the capacity of a set of parallel conductive plates, located within the dispenser so that the level of toner affects the capacitance thereof, by means of a bridge circuit and associated indicating lamp. The sensor 100 comprises a series of parallel conductive plates 101, 102, 103 and 104 secured to end walls 53 of the dispenser and electrically grounded thereby, positioned between a similar series of plates 111, 112 and 113 supported by insulators 106 and electrically coupled by rod 110 passing through an extension 115 of the plates. To prevent "bridging" of the powder the reciprocating dispenser plate 57 is coupled to an insulator 120 around rod 110 to reciprocate the plates 111, 112 and 113 up and down. The sensor is connected to a measuring circuit Fig. 6 (not shown) in which the variable capacitance of the sensor (C x ) is compared with a standard capacitance (C STD ) in a bridge circuit. On closure of switches (SW-A) and (SW-B) the output of the bridge is connected to a silicon controlled switch circuit 150 to activate an indicator lamp NE-2 when the toner level falls below a predetermined level.
Patent GB-253076-A (GB)
Title: Improvements in electrical ignition devices for internal combustion engines
IPC: H01F38/12
Filed: 1926-03-19
Abstract: 253,076. Bosch Akt.-Ges., R. June 4, 1925, [Convention date]. Transformers. - An ignition coil comprises a casing g carrying the yoke h, the casing being mounted on a support d which carries the coil a and its core b, the arrangement being such that the coil can be readily inspected on removal of the casing. The core b is secured by bolts c provided with screw-threaded extensions engaged by bolts k which secure the casing. The yoke may be wedged into the casing, or as shown, the metal of the casing may be pressed into engagement on both sides of the yoke.
Patent GB-394628-A (GB)
Title: Improvements in and relating to electric gas-blast circuit breakers
IPC: H01H33/12
Filed: 1933-03-13
Abstract: 394,628. Arc-rupturing in switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitats- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) March 13, 1933, No. 7608. Convention date, March 12, 1932. [Class 38 (v).] High-tension switches; pneumatic actuation; earthing parts of.-In a gas-blast circuit-breaker having a plurality (two, as shown) of serially - connected breaks per phase, the operating device (shown as a pressure-gas operated piston d<1>) of the movable contact a<1> is connected to earth, whereas that d<2> of the other movable contact a<2> (or contacts) is at working potential. The cooperating fixed contacts bl, b<2> are structurally one and provided with a partition k for deflecting the exhaust blow-out streams in opposite directions through perforations in the wall of the chamber m. The contact is also apertured at the dotted lines h to admit gas to the upper chamber for blowing- out the upper arc and for passing through aperture i to operate the piston d<2>. Preferably the contacts a<1>, a<2> are arranged to separate together, but a spring f immediately restores . a2 to the closed position, so that the insulator g is designed for full working potential. c is an insulator.
Patent GB-628875-A (GB)
Title: Improvements in or relating to plasticised elastomer compositions
IPC: C08K5/372
Filed: 1946-03-12
Abstract: Unvulcanized natural rubber is plasticized by mixing it with 0.1 to 1.0 per cent by weight of an 0,01-acylamidodiphenyl-disulphide having the general formula:- <FORM:0628875/V/1> in which R is an alkyl radical containing 1-12 carbon atoms or an aryl radical containing 6-10 carbon atoms.  R may be a methyl, ethyl, butyl, octyl, lauryl, phenyl, tolyl, xylyl, naphthyl or like radical.  Plasticisation is preferably effected at 115-165 DEG  C. in the presence of 0.5 per cent of 0, 01-dibenzamido-diphenyldisulphide with the optional addition of fillers, reinforcing agents, carbon black and sulphur. Specification 583,645 is referred to.  The Specification as open to inspection under Sect. 91 comprises also compositions of the above-mentioned disulphides with natural rubber and also with synthetic rubbers of which butadiene-styrene copolymer and butadiene-acrylonitrile copolymer are specified, in all proportions. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 583,645.
Patent GB-598964-A (GB)
Title: Apparatus for drying webs of material, especially stentering machines
IPC: D06C3/00
Filed: 1945-03-27
Abstract: 598,964. Drying fabric, paper &c. webs. DALGLISH, J., and LAURIE, K. S. March 27, 1945, No. 7676. [Class 34 (i)] A fabric, paper &c. web 5, carried by chains associated with a pair of opposed stenter guide rails 6, is dried by passage between upper and lower chambers 12, 12 from which heated air is directed on to both sides of the web through parallel-sided nozzles 34, the moist air being exhausted from above and below the web through return chambers 13, which extend longitudinally one on each side of the chambers 12 and house heaters 15, 15a, by fans 14 located as shown. The arrangement is such that moist air will be drawn off, over, say, the right-hand selvedge of the web and then heated and recirculated to the lower delivery chamber 12 and associated nozzles 34, all in direction generally transverse of the machine, the air drawn off the other selvedge being heated and recirculated to the upper delivery chamber and nozzles. The nozzles 34 may be constituted by spaced channel plates having parallel inclined side flanges, said nozzles being of about 4 inches pitch, “ inch wide and 2 inches deep. Each fan 14 is driven by an electric motor 17 and is preferably of axial-flow type with blades 18, a streamlined fairing 19, and delivery through a diffuser 16 having internal partitions 16a, the diffuser 16 and fairing 19 providing a venturishaped delivery outlet diverging from circular to rectangular formation. The motors 17 are cooled by air which is drawn in through openings in the outer casing 7 of the machine, a corresponding quantity of moist air being exhausted from the machine through outlet apertures, not shown.
Patent GB-739479-A (GB)
Title: Improvements in or relating to telescopic forks for motor-cycles or the like
IPC: B62J6/02
Filed: 1954-03-17
Abstract: 739,479. Handle-bars; spring forks. KREIDLER, A. March 17, 1954 [March 18, 1953], No. 7717/54. Class 136(3). In a telescopic front fork, for road vehicles steered by a single front wheel, the two upper tubes 1 of which are connected to the stem tube by crosspieces 2, 3, the upper tubes 1 and the upper crosspiece 2 are held together by nuts 10 and bolts 9 which also serve for the attachment of the handle-bar 8. A head lamp 18 is supported by arms 17 which are mounted on the upper crosspiece 2.
Patent GB-887295-A (GB)
Title: Fractionation control
IPC: B01D3/42
Filed: 1960-03-04
Abstract: 887,295. Automatic control systems. PHILLIPS PETROLEUM CO. March 4, 1960 [March 4, 1959; May 4, 1959], No. 7718/60. Class 38 (4). A fluid mixture to be separated is introduced into fractionation column 10 through conduit 11 at a predetermined rate, steam or other heating medium being introduced through conduit 14, whilst a kettle product stream is withdrawn through conduit 17 at a rate regulated by liquid level controller 18. Vapours are withdrawn from the top of the column through conduit 21 which communicates with accumulator 22 through condenser 23, condensed liquid being removed from the accumulator by pump 25 which returns a portion of this liquid to the column through conduit 26. The remainder of the liquid from the accumulator is directed through conduit 27 at a rate regulated by liquid level controller 28. Valve 41 is regulated to maintain the computed mass flow of liquid leaving the top tray (internal reflux) constant, so that, when the computed internal reflux increases or decreases, the valve is set to reduce or increase flow through conduit 26 (external reflux). The internal reflux is computed as a function of the external reflux and of the difference in temperature at the top tray and the external reflux. The two temperature measurements are made by thermocouples 45, 46, connected in opposition to amplifier 47 whose output is applied to poteniometer 48. The slider of the potentiometer is set to provide a voltage, representing the temperature-differential multiplied by a predetermined constant, to a servomotor 49 adjusting the slider of potentiometer 50. A flow-measuring instrument 35 provides an electrical output signal, representing the external reflux, across the end-terminals of potentiometer 50 whose slider is connected through resistor 51 to summing amplifier 52. The output signal from the instrument 35 is also applied to amplifier 52 through resistor 53. The amplifier 52 therefore provides an output signal which represents the internal reflux and which is applied to controller 40 for valve 41. In another arrangement, the external reflux is measured by a differential pressure transmitter the output of which is transmitted to a square root force bridge for establishing a pressure directly proportional to the external reflux. The signal so derived is multiplied by a signal comprising a constant term added to a term proportional to the temperature-differential, Fig. 5 (not shown). In a further modification, means are provided for maintaining the ratio of the internal reflux to the feed rate constant at a preselected value, Fig. 6 (not shown). A signal representing the composition of the feed components at a preselected region within the column may be used further to control the external reflux.
Patent GB-1272550-A (GB)
Title: Honeycomb roll
Inventor: BRYAND EDWARD THOMAS
IPC: D21F3/10
Filed: 1971-03-23
Abstract: 1,272,550. Rollers. METAL-TECH. Inc. 23 March, 1971, No. 7827/71. Heading F2U. [Also in Division D2] A roll having a hollow honeycomb openwork cylinder as in Specification 1,067,073 except that the straight strips 31, 32, 33 extend radially outwardly further than the bent strips 34, 35. The strips may be of stainless steel and have further strips encircling the roller passing through slits in the radially outer edges of the straight strips 31, 32, 33. The bent strips 34, 35 may have cut-outs 50 to provide a longer welding edge 51 which also facilitates flow through the cylinder. The cylinder may be encircled with a similar inverted cylinder of finer gauge holes &c., some of the straight strips of the two cylinders either engaging, along their lengths, or intersecting each other. The cylinder may be encircled with a meshed screen.
Patent GB-1478947-A (GB)
Title: Sweetening composition and preparation thereof
IPC: A23L27/30
Filed: 1975-02-25
Abstract: 1478947 Dipeptide sweetening composition GENERAL FOODS CORP 25 Feb 1975 [7 March 1974] 7854/75 Heading A2B A dry, soluble sweetening composition comprises a sweet derivative of L-aspartic acid dipeptide in a carrier, wherein a major part of the dipeptide is in the form of discrete particles dispersed in the carrier or encapsulating agent, the remainder of the dipeptide being dissolved in the encapsulating agent, the composition having a density of at least 0.2 g/cc. The composition suitably contains 30-90 % of the dipeptide which is preferably the methyl ester of L-1-aspartyl-L-phenyl-alanine. The product may be formed by spray drying a slurry of the dipeptide in an aqueous solution of the encapsulant, suitably dextrin, to a moisture content of less than 5% by weight.