baber/WOPTO huggingface dataset:
Patent GB-1256004-A (GB)
Title: Electronic amplifiers
Inventor: YANISHEVSKY GILBERT
IPC: H03F3/30
Filed: 1969-06-18
Abstract: 1,256,004. Transistor amplifiers. BURROUGHS CORP. 18 June, 1969, No. 30923/69. Heading H3T. Series connected opposite conductivity type transistors 67, 69 supplying a load such as a CRT deflection coil 81 are fed by respective driver transistors 49, 59 which receive from an amplifier 31 such as a transistor 29 input signals between which a potential difference is maintained as by diodes 41, 43, 45. This limits crossover distortion. The drivers T49, T59 are emitter followers, the amplifier transistor 29 is a common emitter inverting stage, and a buffer emitter follower 21 is included after two differential amplifiers 11, 19. Feedback through resistors 87, 85 provides gain control. The imputs to differential amplifier 11 represent coarse position of the CRT beam, and the character to be drawn.
Patent GB-381746-A (GB)
Title: An improved contact device serving for the production of electrical impulses, for use in connection with measuring instruments, more especially electricity meters
Filed: 1931-11-09
Abstract: 381,746. Supply meters. LANDIS ET GYR SOC. ANON., 1, Hofstrasse, Zug, Switzerland. Nov. 9, 1931, No. 31068. Convention date, Nov. 11, 1930. [Class 37.] In order to overcome the frictional resistance of contact mechanism associated with electricity or other rotary meters for energizing subsidiary circuits, and wherein a motor switching mechanism is employed, the exciting circuit of the motor is closed and opened alternately by the meter and motor. The meter contact comprises springs 3, 4 alternately contacting with a central member 2 and completing the circuit of the field winding 22, rotation of the cam 20 on the motor shaft 13 closing contacts 16, 17 in the subsidiary circuit 15. The circuit 15 may be employed for the distant transmission and summation of measured magnitudes. The cam 14 on the motor shaft prepares either contact spring 10, 11 for the next metering impulse. Instead of a spring contacting device 2, 4, a commutator type of switch may be employed.
Patent GB-227973-A (GB)
Title: Improvements in valve reversing gear applicable to haulage engines and winches
IPC: F01L29/04
Filed: 1923-12-11
Abstract: 227,973. Heenan & Froude, Ltd., and Francis, W. S. Dec. 11, 1923. Linkage gears. - In haulage engines and winches having cylinders arranged on both sides of the drum, the valves in chests b<1> are worked from auxiliary cranks C fixed on the crank pins D. The cranks C are connected by links c to sliding blocks e working in slotted wrist plates E. The valves are connected at intermediate points to the links c. Both plates E are mounted on a common transverse shaft carrying a reversing-handle H' which engages a quadrant H.
Patent GB-490835-A (GB)
Title: Improved method of manufacturing steels adapted to be used as starting material for the manufacture of hardened articles
IPC: C21C5/32
Filed: 1936-11-16
Abstract: In the manufacture of steels to be used as the starting material for the manufacture of hardened articles, nitrogen and a nitrogen binding agent are introduced into the molten steel during or after the production of the steel in such a quantity that the nitrogen content of the final product is at least 0,007 per cent.  The nitrogen binding agents may be deoxidizing agents such as aluminium, titanium or vanadium and the nitrogen either in the form of gases containing nitrogen or ammonia or of solid compounds such as nitrides, nitrales or nitriles.  If the process is carried out in an electric furnace, the time of decarbonization is increased to such an extent that the desired quantity of nitrogen is introduced into the steel.  If carried out in a Bessemer converter, the time of carburization in the acid process is increased to such an extent that the desired quantity of nitrogen from the blast is introduced into the steel.  When carried out in the open hearth furnace, solid compounds containing nitrogen are usually used.
Patent GB-302475-A (GB)
Title: Improvements in or relating to stone breaking and crushing machines
IPC: B02C1/04
Filed: 1927-11-22
Abstract: 302,475. Mason, J. H. Nov. 22, 1927. Crushers with vibrating jaws. - The driving shaft 1 of a stone-breaking machine in which an eccentric drives the upper end of the movable jaw is adapted to be moved to different positions to vary the space between the jaws to render the machine capable of dealing with material of different sizes. The adjustment may be made by removing a block 10 from one side of the bearing 3 to the other, the bearing being slidable in a gap 6 in the frame. Set screws or other similar means may be adapted for moving the bearing or it may be moved by eccentrics or by pivoted arms, levers or like members movable by a screw, eccentric or other convenient means. Pairs of bearings, at different distances from the stationary jaw, may be used, the driving shaft being removed from one set of bearings to the other in order to vary the distance between the jaws. The toggle lever may be fulcrumed on a transverse shaft 14, Fig. 4, mounted in the side frames 4 of the machine, the shaft being adjustable to or from the stationary jaw by the addition or removal of curved or flat packing pieces 16. The shaft is retained against the packing pieces by an adjustable hook 17. Screw or other devices may be used for moving the shaft 14, or the shaft may be mounted in bearings adjustable in or on the machine.
Patent GB-1526678-A (GB)
Title: Urea reactor effluent solution recycle in urea synthesis
IPC: C07C239/00
Filed: 1977-07-27
Abstract: 1526678 Urea I MAVROVIC 27 July 1977 [30 July 1976] 31448/77 Heading C2C Urea is synthesized from ammonia and carbon dioxide in a process in which (1) aqueous effluent from the reactor is split into a major and a minor stream, (2) the major stream is heated in an ammonium carbonate decomposer and (3) the off-gas from the decomposer is contacted with the minor stream and fresh carbon dioxide in indirect heat exchange with a relatively colder fluid to obtain an aqueous solution comprising urea, ammonium carbamate and ammonia, the pressure of the major and minor streams being 60 to 700 lbs./sq. in.
Patent GB-230901-A (GB)
Title: Improvements in and relating to "wireless" circuits
IPC: H04B1/06
Filed: 1923-12-17
Abstract: 230,901. Roddis, C. H. Dec . 17, 1923. Receiving sets, construction of; coupling aerial and detector circuits; receiving systems and apparatus.-A receiving circuit comprises an aerial tuning coil or variometer and a second tuning coil or variometer arranged in a shunt circuit between aerial and earth which also includes a crystal detector. Fig. 3 shows the preferred circuit comprising a crystal detector 15 an inductance 10 having tappings 24, 26 and a coil 40 sliding within the inductance 10. The earth and aerial are normally connected at terminals 29, 30 while for long wave lengths the aerial is connected to terminals 32 and the earth at terminal 29 or 30.
Patent GB-386080-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04C1/00
Filed: 1931-11-16
Abstract: 386,080. Centrifugal gas - cleaners. HOWDEN & CO., Ltd., J. and HOWDEN, W. H., 195, Scotland Street, Glasgow. Nov. 16, 1931, No. 31642. [Class 23.] A centrifugal separator for removing dust from gases has a scroll plate 1 on the intake casing provided with slots 5 for the discharge of dust ; the slots have vanes or the like to assist in guiding the discharging dust. The edges of the slots and vanes are bevelled or stream-lined. The separator is used in conjunction with a fan of the type described in Specification 295,018, [Class 110 (i), Centrifugal and screw fans &c.]. The dust collector may be a hopper 2 or an annular chamber round the plate 1. The collector is connected by a pipe 7 to the fan intake and the passage. way may include a cyclone separator and a control valve. A stationary vane 12 in the form shown in Fig. 3 is fixed to the plate 1 adjacent to the edge 13 of the slot 5. The vane may be curved to bring its free end nearer to the plate 1, and the vane may if desired be secured to the inside of the plate 1. In a modification the vane 20, Fig. 11, may be pivoted at its end 26.
Patent GB-680561-A (GB)
Title: Improvements relating to the manufacture of footwear by the "stuck-on" sole process
IPC: A43B13/32
Filed: 1949-01-29
Abstract: The adhesive coating on a shoe part to be attached to another by adhesive is activated by completely immersing the part by dipping in a liquid, or a constituent of which serves as an activator of the particular adhesived employed.  Specifications 346,397, 496,389 and 680,524, [both in Group VII], are referred to.
Patent GB-1354229-A (GB)
Title: Glass for use in ultrasonic delay lines
IPC: H03H9/36
Filed: 1972-07-06
Abstract: 1354229 Delay line glass ASAHI GLASS CO Ltd 6 July 1972 [7 July 1971] 31763/72 Heading C1M [Also in Division H3] A glass for use as the delay medium in an ultrasonic delay line consists of, in weight per cent:-
Patent GB-227981-A (GB)
Title: Improvements in and relating to power presses
IPC: F16D47/02
Filed: 1923-12-18
Abstract: 227,981. British Thomson-Houston Co., Ltd., and Dumas, R. Dec. 18, 1923. Clutches, claw; securing flywheels on shafts. -In clutches for high-speed power presses, of the kind in which a key carried by the crankshaft engages a keyway or keyways in a ring mounted in the flywheel, the ring is yieldingly coupled to the flywheel by.frictional means. A radially-moving key 2 engages a hardened ring 5 mounted in a member 6 carrying friction rings 7 or a series of studs. The member 6 is gripped between a face 10 on the flywheel 11 and a ring 9 by the pressure of adjustable springs 13 disposed around studs 12. Tn a modification, Fig. 4, the flywheel 11 carries the friction rings 7 and is gripped between a ring 18 and a sleeve 16, in which the clutch ring 5 is mounted. The ring 18 is slidable on a pin 22 in the sleeve 16 and is tongued and grooved to a collar 20 cottered to the sleeve, springs 19 being arranged between the parts 18, 20. In another form, segmental pieces carried by the flywheel are radially pressed by springs on to the boss of the sleeve 16. The clutch key may be of the axially-moving or rocking type.
Patent GB-175067-A (GB)
Title: Improvements in or relating to means for applying the beads to pneumatic tyre casings
IPC: B29D30/18
Filed: 1920-11-10
Abstract: 175,067. Dunlop Rubber Co., Ltd., Macbeth, C., and Fellowes, F. Nov. 10, 1920. Tyres, elastic, special apparatus for making.-In a device for applying the bead cores C<x>, D<x> to a partially-built tyre foundation, the cores are carried by inner and outer rings C, D respectively which are mounted coaxially with the spindle B of the rotary former A. Hooks G' adapted to engage through slots C<4>, the boss of the inner ring C are jaurnaled on eccentrics E<2>, on the boss of the ring D. The rings C, D are adjusted to or from the former A by means of a hand-lever F. The inner faces of the rings C, D may be formed with slight swells between the spokes or arms C<1>, D'.
Patent GB-880969-A (GB)
Title: Knitted pile fabric and method
IPC: D04B9/14
Filed: 1959-09-18
Abstract: 880,969. Knitted fabrics. WILDMAN JACQUARD CO. Sept. 18, 1959 [Sept. 25, 1958], No. 31848/59. Class 74 (2). A two faced pile fabric has individually drawn tufts 21 of fibres forming a pile at one face of a knitted base fabric and pile loops 23 projecting at the other face. Yarn 10 is knitted into the base fabric, the tufts 21 are taken by the needles from a doffer 27 and drawn into the loops along with the base yarn, and bights of pile yarn 22 are sunk between the needles, at a point following the knitting station, to be locked in position by the next course of base fabric. The pile yarn may be laid above the closed needle latches, or the fabric may be first raised, taking the needles with it, by freely rotatable discs 30, 31. The pile loops may be sunk by a freely pivotable wheel 33 carrying notched loop sinkers 36 (Fig. 3, not shown) which mesh with the needles to drive the wheel, or by providing the web-holders with an additional notch for the pile yarn. The tufts and the pile loops may be positioned by jets of air supplied to nozzles 38, 39 through a tube 40. The pile loops may be cut and both faces of the fabric may be napped, brushed, treated by liquid, or otherwise finished.
Patent GB-738401-A (GB)
Title: Improvements in and relating to electric switch-actuating means
IPC: H01H17/16
Filed: 1952-12-16
Abstract: 738,401. Switches held set and freed mechanically. CONTACTUM, Ltd., and BOLLING- HAUS, W. Dec. 16, 1953 [Dec. 16, 1952], No. 31859/52. Class 38 (5). A switch is alternately operable " on " and off " by successive pulls on a chain 29 which is connected to a link 31 having hooks 40, 41 cooperable with pins 19, 20 on a pivoted dolly 7. The chain engages a U-member 30 to which the link 31 is pivoted by a pin 33 movable in grooves 34, 35 in a boss 26. Downward movement of the link 31 from the Fig. 2 position engages hook 40 with pin 19 and tilts the dolly clockwise about its pivot 8 to operate the contacts 4, 5 by a cam 9. When released, upward movement of the link by a spring 39 causes a sloping surface 43 of the link to engage the pin 19 so that the link is tilted anti-clockwise so as to be ready to engage the other pin 20. The cam and contacts may be arranged as in Specification 694,587.
Patent GB-1101266-A (GB)
Title: Cooling device for pulleys
IPC: B66D3/06
Filed: 1965-07-26
Abstract: 1,101,266. Pulley blocks. COMPAGNIE FRANCAISE THOMSON HOUSTONHOTCHKISS BRANDT. 26 July, 1965, No. 31886/65. Heading B8B. A group of axially arranged and spaced pulleys 1 are cooled by passing a coolant fluid from channels 7 at each end of the group, axially through apertures 5 in the pulley sides and radially through annular spaces between the groove walls 8, 9 of adjacent pulleys. In the embodiment of Fig. 2 (not shown) coolant is supplied axially from one end of the pulley group only, the pulley at the end remote therefrom having no apertures therein. The coolant flow may be reversed through the pulley group.
Patent GB-772064-A (GB)
Title: An improved device for supplying current to welding electrodes, for heating and drying coating materials applied thereto
IPC: B23K35/40
Filed: 1954-11-04
Abstract: 772,064. Supplying current to moving conductors. BOHLER & CO., AKT.-GES., GEB. Nov. 4, 1954 [Nov. 6, 1953], No. 31898/54. Class 38 (1). [Also in Group XI] For heating and drying coating material on welding electrodes 2 moving along a belt conveyer 1, current is supplied to the ends of the electrodes by a pair of endless contact bands 3 (or chains) engaging the ends of the electrodes. The bands consist of resilient insulating material with conducting inserts 4 to which current is supplied by contact fingers 8 slidably engaging the inserts, the bands being urged into engagement with the electrodes by spring-pressed rollers 6. Current is supplied to an electrode only during a portion of the time it is in contact with the bands so as to avoid arcing when contact with the electrode is made and broken.
Patent GB-1476601-A (GB)
Title: Film splicing device
IPC: B65H21/00
Filed: 1975-07-31
Abstract: 1476601 Film splicers COSTRUZIONE INCOLLATRICI RAPIDE CIR SrL 31 July 1975 [2 Aug 1974] 31980/75 Heading G2E In a film splicer, film strips to be joined are laid on a plate 2, adhesive tape 9 is stretched over the splice area between bridges 10, 11 and at least one of the bridges is movable between a position retracted from the plate 2 and a position adjacent thereto. As shown, the rear bridge 10 is fixed, and the front bridge 11 is shaped like a drawer handle and has at each end a hole fitting with clearance on bolts 12 screwed into the body 1 of the splicer. When the adhesive strip 9, which is pulled from a roll 6 and may pass round roller 16, is streched over the splice area, it sticks to the top of bridge 11 and rocks it about bolts 12, and pushes it along the bolts against action of springs 13. It also sticks to fixed bridge 10, and is thus held while a moveable plate (3), Fig. 1 (not shown) is brought down to press the tape 9 on to the ends of the film strips to form the splice. At the same time, knives (8) cut the tape 9 at the sides of plate 2. Plate (3) is raised, and the front bridge 11 is spring-urged upwards and away from plate 2, and an end tab (14), Fig. 5, (not shown), is formed which is short but comes readily to hand. Discs (17) at each side of the roll 6 prevent the roll from assuming a conical shape, and may be chosen from a set of discs of different thicknesses so that tapes of different widths may be used. The bridge 11 may alternatively be mounted on a spring-loaded rotatable shaft moving in slots in the body 1, or may be mounted for rotation only about a shaft. Both bridges may be movable, or the bridge 10 may be movable and the bridge 11 fixed.
Patent GB-1103929-A (GB)
Title: Apparatus for disassembling filter and cigarette assemblies
Inventor: PINKHAM JESSE RANDOLPH
IPC: A24C5/36
Filed: 1966-07-15
Abstract: 1,103,929. Disassembling filter cigarettes. R. J. REYNOLDS TOBACCO CO. 15 July, 1966, No. 32030/66. Heading A2C. In an apparatus for disassembling defective filter and cigarette assemblies each having two cigarette sections and a double length filter between them, the cigarette assemblies are, while travelling along an arcuate path, severed transversely just outside either end of the filter section by a pair of essentially parallel knife means spaced apart a distance at least as great as the length of the filter section. In one embodiment, cigarette-filter-cigarette assemblies 20 are conveyed by a drum 22a to a drum assembly 21 on which they are held by suction through orifices 26 in cradling means 25. While transported by the drum 21, in a clockwise direction as seen in Fig. 1, the assemblies 20 are tested by air pressure applied through retractable sleeves 110 (Fig. 2). Detection of a defective assembly 20 actuates a solenoid 35 which engages a finger 30 of a valve operator 27 to thus switch the appropriate orifices 26, associated with the defective assembly 20, from suction to positive air pressure. The turning of the valve operator 27 also causes a cam portion 31 to be repositioned so as to engage a cam follower 49 as it passes it at position 50. The thus actuated cam follower 49 causes a pair of knives 55 to sever the assembly 20 on either side of the filter portion 20a. A circumferential guide bar 36, acting against the filter portion 20a, retains the defective assemblies 20 on the drum 21 from the point where the suction is replaced by positive air pressure until the assembly is cut. The cigarette portions 20b, 20c then fall away into two shoots and, on clearing the end 36a of the guide bar 36, the filter portion 20a falls into another shoot. Where acceptable assemblies are detected the appropriate valve operator is not turned and they are thus retained uncut on the drum 20 to be subsequently transferred to a conveyer drum 22b. In other embodiments; (A) the knives are solenoid actuated with a suitable delay; (B) defective assemblies are transferred to a smaller drum where they are cut with circular rotating knives; (C) circular solenoid actuated knives are used; (D) sprung knives are released by a solenoid actuated trigger and reset by a cam track on the drum 21; (E) defective assemblies 20 are ejected on to star wheels which drive the assemblies 20 into a pair of rotating circular knives; (F) the defective assemblies are discharged on to an inclined ramp leading to a roller and knife assembly, the knives being double eccentric in outline with a pair of radial knife edges; (G) cutting is effected on a ramp with circular rotating knives; (H) as in (G) but assisted by star wheels.
Patent GB-146046-A (GB)
Title: Improvements in gas meter indicators
IPC: G01F3/30
Filed: 1919-12-22
Abstract: 146,046. Glover, A. W., and Glover & Co., G. Dec. 22, 1919. Associated counters, trip-and-total and like.- Means is provided on the dial of a gas-meter for indicating continuously the thermal units supplied, and for adjusting the indications to correspond with different qualities of gas supplied. A pointer F, geared to the usual train to give one revolution for 100,000 cubic feet supplied is fitted to indicate on a scale H surrounding the dial. The scale H is graduated so that a complete turn shows the value of British Thermal units per cubic foot. When the calorific value of the gas supplied is changed a new scale H on varnished paper or the like is pasted on the bezel outside, with the zero point at the then position of the pointer.
Patent GB-168809-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F1/00
Filed: 1920-11-13
Abstract: 168,809. Smith, A. H. D. A. Nov. 13, 1920. Tobacco pipes.-In a pipe with radiating fins, the bowl 1, stem 2 and fins 3 are in one piece of aluminium or light metal alloy, as shown in Fig. 1, or a metal sleeve 7 with fins 8 fits on a reduced portion 6 of the bowl 5, Fig. 2.
Patent GB-1240679-A (GB)
Title: Gas burner ignition systems
IPC: F23Q3/00
Filed: 1968-07-05
Abstract: 1,240,679. Igniting and controlling burners. CONSTRUCTIONS ELECTRIQUES R.V. 5 July, 1968 [2 Feb., 1968], No. 32122/68. Headings F4F and F4T. [Also in Divisions F1 and H1] A gas burner ignition system comprises a capacitor 8 charged via a diode 10 and a resistor 11 and discharged through the primary winding 1 of a transformer having secondary windings 3 connected to spark electrodes 4, an electronic switch 12 for controlling the discharge of the capacitor 8, and a pulse generating device 14 connected to the trigger 13 of the electronic switch, the resistor 11 and the pulse generating device 14 being such that the period between pulses generated by the device 14 is greater than the time constant of the charging circuit of the capacitor 8. The frequency of the device 14 is preferably between 1 and 20 Hz. The pulse generating device may be a Shockley diode, a transistor, a tunnel diode, or a gas diode, the frequency of the device 14 being determined by a capacitor 16 and a preferably variable resistance 15. Alternatively, the pulse generating device may be a Zener diode (Fig. 6, not shown) connected to the voltage source through a resistance 15. In Fig. 8, the ignition system is actuated when a gas cock 25 is pressed and rotated to supply gas to a burner A and on ignition ionization current flows between the electrode 4 and the burner 8, this current being derived from a point 29 between the capacitor 16 and the pulse generating device 14 and thus rendering the device 14 inoperative to halt spark generation.
Patent GB-924927-A (GB)
Title: Improvements in and relating to melting pots
Inventor: STROBEL ANTON
IPC: H05B1/02
Filed: 1959-09-21
Abstract: 924,927. Electrically heated melting pot switching arrangement. FUNDITOR Ltd. Sept. 19, 1960 [Sept. 21, 1959], No. 32124/59. Class 39 (3). A melting pot has an electrical heater assembly for heating the mouthpiece of the melting pot, the heater assembly comprising a plurality of electrical resistance heating elements 2, 3 actuated adjacent the mouthpiece of the pot, the supply of current to the said elements being controlled by an intermittently operated switch 10 connected to the elements so that when the switch 10 is in one position, the elements are connected in series with the current sources and when the switch 10 is in another position the current flowing through one element 3 is cut off or reduced and the current flowing through another element 2 is increased. The semiflexible metal housing 1 for the heating elements 2, 3 is shaped to conform to the curved throat of the mouthpiece. Switch 10 comprises heater coil 11 adjacent bimetallic switch 12 in series with a tilting mercury switch 13 which is tilted at a predetermined temperature of the bimetal 12. The bimetal 12 responds to the temperature of the mouthpiece. It may be replaced by a mercury in steel thermospring adjacent or heated by means related to the temperature of the mouthpiece. 2 is nearer the free end of the mouthpiece than 3. Heating elements 14 for the interior of the melting pot are controlled by a mercury in steel thermospring which actuates a switch 16. The melting pot may be used for type metal in the type casting machines. Specification 749,386 is referred to.