baber/WOPTO huggingface dataset:
Patent GB-1240493-A (GB)
Title: Improvements in or relating to signal transmitting devices
IPC: G01L9/04
Filed: 1968-08-21
Abstract: 1,240,493. Impedance or voltage measurement; two wave transmission systems. ROSEMOUNT ENG. CO. Aug.21, 1968 [Aug.21, 1967], No.39948/68. Heading G1U. In a system for providing a current signal It corresponding to information to be transmitted from a transmitter to a load 25 via a paired wire system, there being a current supply source 24 in series with the load across the pair of wires at the end opposite the transmitter, the current flowing through the wires serves to supply power to the transmitter as well as to represent the information. The transmitter incorporates a voltage responsive current controller 16 for adjusting the current through the wires in response to voltage (at 11, 13) derived from an input circuit 10 which tends to change according to a variable condition representing the information. The input circuit includes a resistor R5 connected so that at least part of the load current flows therethrough to provide a voltage to be used in maintaining the voltage to the current controller substantially constant. In particular, the transmitter incorporates a bridge arrangement 10 including in one arm a resistor R4 which may be controlled by a parameter to be measured. The bridge is fed with the current I t . A Zener diode V c  across the bridge supply diagonal stabilizes the voltage across the bridge. The input current is applied to one of the bridge arms between resistors R 4  and R 5 , and is varied in response to any error voltage input to the current controller until the bridge provides zero output. The current value, determined at the load 25, then represents R 4 . In a detailed arrangement Fig.2, the majority of the current It is fed to the point 26 in the Zener diode circuit rather than to 14. Input D.C. is applied at 20 to a Darlington amplifier 31, 32 which is controlled by transistor 34 in accordance with the bridge output to supply a variable current to the point 26 via the Zener diodes 84, 85. The output from the bridge is modulated by the circuit 60, by switching the FET 63 to periodically short circuit the bridge output from the free running multi-vibrator 70. After amplification at 50, this signal is demodulated at 40, also controlled by the multi-vibrator 70, to provide an output signal at 45 which controls the current passed by the control circuit 30 to energize the bridge. The resistor R 4  may be part of e.g. a platium resistance thermometer which has a non linear relation between temperature and resistance. By appropriate adjustment of R 6 , the bridge arrangement may be set so that the variations in output current I t  correspond linearly to variations in temperature. In an alternative arrangement, a thermocouple responding to a variable to be measured may be connected with its output circuit in series with a bridge arm component or across the input to the current controller.
Patent GB-928923-A (GB)
Title: Circuit arrangement for preventing sawtooth oscillations in capacitive potential transformers
IPC: H01F27/42
Filed: 1960-11-22
Abstract: 928,923. Capacitive voltage transformers; protective arrangements. MICAFIL A.G. Nov. 22, 1960 [Nov. 25, 1959], No. 40078/60. Addition to 828,365. Class 38 (4). A modification of the circuit shown in Fig. 3 of the parent Specification in order to prevent undesirable oscillatory conditions from tripping network protection relays, provides for the impedance Z 2  to be in series with a resistor R which itself has a further impedance Z 3  either in series or parallel connection with it. The impedance Z 3  possesses a falling impedance characteristic to rising potentials as, for example, voltage-dependent resistors, rectifiers used in their forward direction or saturable reactors.
Patent GB-1109519-A (GB)
Title: Improved arrangement for couplings for interconnecting alternating current circuits
Inventor: JONES KENNETH MEIRIG
IPC: H02H9/02
Filed: 1965-09-21
Abstract: 1,109,519. Interconnecting systems for A.C. circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 14 Sept., 1966 [21 Sept., 1965], No. 40196/65. Heading H2H. A.C. circuits 1, 2 are interconnected by a coupling 3 of the type in which under normal operation a series resonant circuit 4, 5 presents a low impedance and under abnormal (fault) conditions a reactor 6 saturates to provide a low impedance by-pass for the capacitor 5 and so de-tune the resonant circuit, a resistor 7 damping the transients produced during change of condition of the reactor 6. It is assumed that circuit 2 includes an essential load (e.g. a motor) which must suffer minimum disturbance during fault conditions and/or must " recover " immediately after a fault is cleared. This requirement is met by making the conducting path 8 between members 1, 3 substantially shorter than the path 10 between members 2, 3. Path 8 will thus be less vulnerable to faults than the path 10 and in the event of a fault on the latter the resistor 7 will draw power predominantly from the circuit 1. In another arrangement. Fig. 2 (not shown) there are two feeders from the circuit 1 respectively supplying an essential load and a less-essential load, the coupling 3 being inserted in the feeder to the less-essential load, which feeder is substantially shorter than the other. The less-essential load(s) may be automatically disconnected in response to fault conditions. The " essential load " circuit may include generators.
Patent GB-1220290-A (GB)
Title: Carbonating system and apparatus
IPC: B01F3/04
Filed: 1968-08-22
Abstract: 1,220,290. Carbonating beverages. AUTOMATIC SPRINKLER CORP. OF AMERICA. 22 Aug., 1968 [29 Aug., 1967], No. 40225/68. Heading B1C. [Also in Division F2] In a beverage carbonation process the pressure of carbon dioxide is first reduced by valve 20 to a level which differs from the pressure of beverage flowing in pipe 11 by a constant amount before it is injected into the beverage at a rate proportional to the pressure drop of the beverage across venturi 15. The latter step may be controlled by a regulating valve 50.
Patent GB-852898-A (GB)
Title: Improvements in refrigerant compressors
IPC: F25B31/00
Filed: 1957-12-30
Abstract: 852,898. Compressors. BROWN, BOVERI & CIE A.G. Dec. 30, 1957 [June 14, 1957], No. 40344/57. Class 8(1). Separation of oil from refrigerant vapour escaping from the crankcase 6 to the suction chamber 5 of a piston compressor and its return to the sump 14 is effected by an open-ended vertical tube 11 normally dipping into the sump and having side ports 15 in the vapour space of the crankcase ; the upper open end 12 of the tube 11 opening into the chamber 5. The lower end of the tube is formed as a nozzle 13 or is provided with a non-return valve part which separated oil passes from the tube 11 to the crankcase 6 except when the pressure in the crankcase rises to a predetermined value in excess of that in the tube 11. The latter may be cast integral with the crankcase and in the case of a V-type four cylinder compressor the separator is provided in the angular space between the cylinders. As shown refrigerant is drawn through a suction inlet 9 and past suction valve 7 and compressed vapour is discharged past a pressure valve 8 into an outlet 10.
Patent GB-1202941-A (GB)
Title: Computer preparation of diagrams
IPC: G06F3/12
Filed: 1967-09-05
Abstract: 1,202,941. Programmed computer. WESTINGHOUSE ELECTRIC CORP. 5 Sept., 1967 [23 Sept., 1966], No. 40447/67. Heading G4A. A computer programmed to control a typewriter device for constructing on a printreceiving medium a diagram performs the steps of operating the device to print a first succession of bars at successive selected locations on the medium along a line parallel to a first direction transverse of the medium, of moving the medium and the device relative to each other in a second direction normal to the first direction, of operating the device to print a second succession of bars on the medium at second succession of bars on the medium at successive selected locations along a second line, the first succession having at least one point of vertical connection, the bars in the first succession being parallel to the first direction, the bars in the second succession being parallel to the second direction and the locations in the second succession being associated with one said point of vertical connection. The diagram produced is a circuit diagram using characters on the typewriter to represent specific circuit components.
Patent GB-1439495-A (GB)
Title: Grinding apparatus for chamfering or rounding the corners of  glass plates
IPC: B24B9/10
Filed: 1973-08-29
Abstract: 1439495 Grinding M RAUTENSTRAUCH 29 Aug 1973 [9 Sept 1972] 40678/73 Heading B3D Apparatus for chamfering or rounding the corners 13a, 13b of a glass plate 10 comprises a motor driven grinding tool 12, such as a grinding wheel or grinding belt, reciprocatable transversely to the direction of movement of the glass plate dependently on the front and rear edge 10a, 10b of the glass plate. The glass plate is moved by a feed mechanism, such as conveyer belts 30, over a frame 11 and past switches 14, 15 which are mounted above or below the sheet and have arms 16a, 17a provided with rollers 16, 17 for detecting the passage of the front and rear edges 10a, 10b of the sheet. The switches are adjustable relative to one another and to the frame 11 and have respective pulse generators 18 which control a valve 27 in an hydraulic circuit having a flow regulator 28 and a piston-andcylinder device 19 for moving a slide 23 along a bracket 25 on the frame 11. A support 24 on the slide carries a motor 21 for driving the grinding tool. The grinding tool initially overlaps the longitudinal edge of the glass sheet by a distance X. As the sheet is advanced by the conveyer belts 30, the leading edge 10a of the sheet engages the rollers 16, 17. Roller 17 actuates switch 14, the pulse generator of which operates valve 27 so that the device 19 is actuated at a speed determined by regulator 28 to move the grinding tool away from the sheet and grind the leading corner 13a. The tool is retained at a distance Y from the longitudinal edge until roller 16 detects the rear edge 10b of the sheet and its switch 15 causes the valve 27 to feed the tool towards the sheet to grind the corner 13b. The tool is moved at a constant speed to produce a straight chamfer or bevel or at a variable speed to produce a rounded chamfer. The slide may be guided by a lever system or guide tracks to move along a curved path to produce the rounded chamfer.
Patent GB-407703-A (GB)
Abstract: 407,703. Secret contact-combination switches. MARTELL, W., 9, Crathem Road, Royal Oak Estate, Northenden, Manchester. Sept. 21, 1932, No. 26268. [Class 38 (v).] A secret combination switch for ignition and other circuits comprises a series of superimposed rotatable numbered discs 4 ... 7 each carrying on its under side, Fig. 5, two contacts 12, 13 electrically-connected by a conductor 14 and adapted to bridge a pair of fixed contacts in the base 1 when the discs are in a pre-arranged position. The fixed contacts 17 a .... h in the base may be arranged as shown in Fig. 4 in the case of battery ignition some being connected to each other and when the switch is set the four contact bridges in the rotatable discs 4 ... 7 engage them so as to complete a circuit from the ignition coil 19 to the distributor 21. In the case of magneto ignition four parallel circuits to the sparking plugs are completed by the four bridges in the discs. Dummy contacts 25 may also be provided.
Patent GB-1104687-A (GB)
Title: Window frames
IPC: E06B3/64
Filed: 1964-10-06
Abstract: 1,104,687. Glazing. S. C. HART-STILL. 24, Sept., 1965, No. 40776/64. Heading E1R. A window frame assembly includes a frame member 1 each side of which has a flange 3, and walls 4, 5 defining a slot 6, and a frame member 2 having at each side a flange 10 and constructed to abut the edges of the walls 4, 5 to seal off the slot 6, the flange 10 providing pane-retaining means together with the flange 3. The members 1, 2 are releasably held together by clamping means in the form of resiliently-biased clips 16 around the frame I, engageable by members 24 in the frame member 2, mounted between the walls 4, 5 by pivots 17, 18. The biasing is done by a spring 20 on the base of the slot 6 and serving to hold the clips 16 in a disengaged position during assembly. The panes 13, 14 are separated by gaskets 11, 12 and 15.
Patent GB-993651-A (GB)
Title: Double-twist spindle
IPC: D02G3/08
Filed: 1963-10-16
Abstract: 993,651. Two-for-one twisting-apparatus. DOUTORS SOC. ANON. HOLDING. Oct. 16, 1963 [Oct. 23, 1962], No. 40804/63. Heading D1D. In 2-for-1 apparatus for twisting strips of paper &c. into yarn, a magazine 37 is rotatably mounted but kept stationary on a spindle shaft 10 and the material passes over a guide-disc 33, through a funnel 35, along a duct 15 in the spindleshaft to a roller 17 at the intersection of this duct with a transverse one 16 and rotatable about an axis perpendicular to the spindle, along a plate 12 perpendicular to the spindle axis and connected to the spindle, and thence to a thread-guide on the spindle axis; the disc 33 is flexible and is rigidly connected to the funnel which is in the form of a truncated hollow cone 35 whose smaller internal diameter is less than the width of the strips; neither the cone nor the disc rotates with the spindle; the roller is rigidly connected with the spindle and takes the form of a waisted cylinder pivotally mounted at two points in the waist, and the plate has in its lower surface a T-shaped groove to receive the thread as it leaves the spindle. The spindle rotates in upper and lower bearings and has a conical part 11 over which is fitted a boss or plate 12, while the magazine is rotatably mounted on a sleeve 23 surrounding the upper bearing. The disc 33 is fixed in a slot of a bored member 31 carrying the cone 35 and a ball 46. A plug 20 in that part of the bore 16 not occupied by the thread serves to balance the roller 17. The magazine is loaded with spools of tape the ends of which are joined, and the thread, in operation, moves with rotation of the plate 12 into one of the extremities of the horizontal branch of the 'T' in the groove 31. An outer casing 1, of which the upstanding wall acts as a balloon-limiter and carries the restraining magnet 27 has an aperture 41 in which the operator may insert his hand for threading-up.
Patent GB-1528483-A (GB)
Title: Adaptively tuned data receiver
IPC: H04L25/02
Filed: 1975-10-07
Abstract: 1528483 Data transmission; distortion correction; automatic tuning control SANGAMO WESTON Inc 7 Oct 1975 [7 Oct 1974] 40932/75 Headings H4P and H3A An arrangement for reconstructing distorted incoming signals comprises a filter including a delay with a defined transfer function with a means for deriving a timing signal which adjusts or tunes the filter delay corresponding to the rate of incoming signals. Input NRZ signals distorted by noise are applied through a buffer amplifier to a matched filter 20 having a 1 bit delay 22, matched to the type of modulation, which delay may comprise charge transfer (e.g. "bucket brigade") devices. A summing amplifier 24, whose output is integrated at 26, receives delay input and output signals; integrator 26 output represents mark/space signals which are compared at 30 with a reference voltage 32 but these are not synchronous with incoming signals. Synchronism is provided by a flip-flop 34 receiving clock pulses from a frequency divider 36 connected in a phase locked loop arrangement 36, 38, 40 also receiving delay line output in a phase comparator 42 which adjusts loop frequency. Output of loop is also fed back to delay 22 so that it maintains a 1 bit delay irrespective of variations in input bit rate; V.C.O. 46 runs at an integral multiple N of bit rate (e.g. N = 32) which is N in 36.
Patent GB-861699-A (GB)
Title: Improvements in or relating to tool-holders
IPC: B23B27/08
Filed: 1958-12-19
Abstract: 861,699. Tool-holders. JAMES NEILL & CO. (SHEFFIELD) Ltd. Dec. 8, 1959 [Dec. 19, 1958], No. 40994/58. Class 83 (3). A parting-off tool-holder comprises a shank 3 having a groove 1 for a tool 8, which is clamped by the eccentric head 14 of a bolt 15. The groove 1 is undercut at 6, and is deepened and widened from a point 25 to the end 3a of the shank 3. The head 14 of the screw 15 has an oblique face 13 which engages the outer upper edge of the tool 8 and clamps it against the faces 6, 22, the face 22 being canted longitudinally to provide front rake to the tool. The top face 24 of the head 14 is parallel to the face 2 of the tool holder, and tools of different widths may be used.
Patent GB-905341-A (GB)
Title: Book-back glueing and drying machine
IPC: B42C9/00
Filed: 1958-12-22
Abstract: 905,341. Bookbinding machines. KOLBUS, A., and KOLBUS, W., [trading as RAHDENER MASCHINENFABRIK A. KOLBUS]. Dec. 22, 1958 [Dec. 28, 1957], No. 41349/58. Class 16. In a machine for applying glue to the backs of uncased books and then drying the glue, the books 18 are fed over a table 1 by conveyer belts 15 and a follower presser plate 20 towards a guide plate 21, a reciprocating feeder finger 4 (not shown) engages the first book and pushes it along the plate 21 and over a support 24 to a second position opposite a pair of support rails 41, Fig. 3, the book is arranged between two jaws 40 or distance pieces which slide along the rails 41, and a reciprocating member 5 then pushes the jaws and book along the rails. The assembly of books and jaws is pushed intermittently along the rails 41, glue is applied to the backs of the books by a roller, a rotating brush spreads the glue on the backs, and the glue is then dried as the books pass over infrared tubes and a fan arranged on an adjustable platform beneath the rails 41. When a book 18 is to be transferred to the position opposite the pusher 5 by the finger feeder, a face cam 27 on a reciprocating lever engages behind a collar 28 secured to a rod 22a carrying the plate 21 so that the latter is moved backwardly against the action of a coil spring 26a. Rods 29, which are rocked about the axis of a shaft 31 by a roller 32 engaging a second face cam 34 on the reciprocating lever, hold back the other books and guide the first book from the belts 15 to the support 24. Rails 35 arranged beneath the table 1 are raised and lowered to assist the transfer of the books from the belts 15. The jaws 40 comprise narrow flat plates with ledges which ride over the rails 41, and leaf springs 41a arranged on the inside faces of the rails serve to hold the assembly of jaws and books together and exert pressure on the books. The pusher 5 is reciprocated by a cam-operated rod 54 acting on toggle levers 7. The jaws 40 are initially situated above the books on conveyer chains 72, and are brought down into position on the rails 41 between the books by a member 46 which is vertically reciprocated in slides 47. The transfer of the books on to the rails 41 by the pusher 5 is assisted by locking pawls, the pusher moving each book just past the pawls which hold the book when the pusher retracts, and by an oscillating arm 42 secured to a rocking shaft 43. At the delivery end of the machine, the jaws 40 are removed from the rails 41, one by one, by an oscillating lever means and placed on an endless conveyer chain 71, which transfers the jaws on to the endless conveyer chain 72. The gluing appliance comprises a brush on the surface of a roller supplied with glue by a second roller partly immersed in a glue container, and a roller having a glue-spreading brush thereon is mounted on the same shaft as the glue-applying roller. The rollers are rotated by rack and pinion gearing when the gluing appliance is reciprocated across the path of the books.
Patent GB-1012269-A (GB)
Title: Refractory articles and method of their manufacture
IPC: C22C32/00
Filed: 1961-11-22
Abstract: Articles containing at least one hard phase of high melting point are obtained by infiltering a permeable framework containing at least one of the elements carbon, boron or silicon, to a substantial depth with a molten metal or metal alloy comprising at least one metal capable of combining chemically, within the said framework, with the framework element or elements so as to form the desired hard phase, and then subjecting the infiltered framework to phaseforming conditions under which the hard phase is formed.  In a preferred embodiment a substantially pore free carbide article is obtained by infiltering and heat treating a molten metal in a carbonaceous framework which may be substantially solid carbon, porous carbon skeletons, powdered carbon particles, foamed carbon, carbon batt or carbon fibre cloth. When an only slightly permeable carbonaceous material is infiltered a carbide coating is formed thereon.  When carbide articles are to be produced the metallic infiltering alloy preferably contains at least one element whose Gibbs potential at the carbide forming reaction temperature and pressure is greater in the molten metal alloy than the Gibbs potential of the same element.  The infiltering molten metal alloy may contain one or more active carbide formers and may be such that one or all elements comprising it take part in the reaction with the framework.  Preferably commercially a previously shaped porous or interstitial carbonaceous framework is substantially filled with a molten metallic carbide forming material, e.g. alloys of tungsten, titanium or zirconium, or with alloys embodying a carbide forming element and a metal binder material, by dipping the framework in the molten material.  Fluxes, e.g. a 1 : 1 mixture of sodium and potassium chlorides, anhydrous barium chloride or cryolite may be used to cover the molten metal alloy during the infiltration to prevent oxidation of the alloy. Alternately, the infiltration may be carried out in an inert gas atmosphere or a vacuum furnace.  In the examples the alloys employed are zirconium-iron; titanium-cobalt; titanium - nickel; vanadium - nickel; titanium-boron - iron - aluminium; titanium - copper; titanium - molybdenum - nickel and manganese-titanium - nickel - aluminium and the frameworks to be impregnated are filter graphite, graphite batt, powdered graphite particles, powdered carbon particles, foam carbon, charcoal and graphite felt.