baber/WOPTO huggingface dataset:
Patent GB-1118628-A (GB)
Title: Improvements in or relating to electrostatic clutches and brakes
Inventor: DONELAN JAMES ARTHUR
IPC: H02N13/00
Filed: 1964-12-08
Abstract: A carbon disc for use in an electrostatic brake or clutch is made by heating hemicellulosic pulp in water, the concentration of pulp being 2% by weight, for four hours, regenerating the hemicellulosic material by centrifuging the aqueous dispersion to remove the free water therefrom, pressing the centrifuged pulp in the form of discs, drying the discs and finally heating them to 500 DEG  C. in nitrogen under a pressure of about 300 atmospheres.
Patent GB-1008091-A (GB)
Title: Improvements in and relating to radiosonobuoys
IPC: G10K11/00
Filed: 1963-12-18
Abstract: 1,008,091. Radio signalling; aerials. L' ELECTRONIQUE APPLIQUEE. Dec. 18, 1963 [Dec. 21, 1962], No. 49947/63. Headings H4A and H4L. A radio sonobuoy comprises a first unit in a casing 12, Figs. 5 and 8, containing an inflatable float 11 housing an aerial which is erected automatically when the float is inflated, a second unit containing electronic equipment and together with an outer casing 69 forming a compressed gas container the gas being introduced through a valve 37, and a third unit comprising a tube 51 containing salt water batteries 60 and a hydrophone 64 and its associated cable 63, the three units being secured together by water-tight joints. When the unit is thrown from a ship or aircraft the air pressure on tabs 18 of two members 17 forming an end section to the casing 12 and secured by an elastic band 21, are forced apart and thrown off, allowing the float to be ejected by a spring- loaded plunger 15 which acts as a slide valve allowing compressed air to be fed through holes in the tube 29 and via a hollow tube 14 to inflate the float and erect the aerial within an extension to the float. When the buoy hits the sea, screws 76 securing a bottom plate 73 are sheared and the bottom plate is ejected by a spring 74 so that springs 61 operate means opening the upper battery compartment to the sea, and the hydrophone falls and its cable unwinds. The second battery compartment is brought into use when a plug connecting the two compartments is dissolved by the sea water and further battery compartments may be so arranged for sequential operation.
Patent GB-1209625-A (GB)
Title: An improved open-end spinning method and apparatus
IPC: D01H13/16
Filed: 1967-11-02
Abstract: 1,209,625. Spinning machines. TORAY INDUSTRIES Inc. and HOWA MACHINERY Ltd. 2 Nov., 1967 [4 Nov., 1966; 27 April, 1967; 8 May, 1967], No. 49952/67. Heading D1D. In an open-end spinning machine wherein a fibrous bundle is supplied to a feeding device whereby it is converted into loose fibres which are entrained by a pneumatic suction flow to twisting apparatus to form a yarn, the loss of yarn tension due to breakage is detected and the fibre bundle is diverted away from the twisting apparatus with a second pneumatic flow. As shown in the apparatus of Fig. 1, when a spinning yarn is broken, a microswitch 12 initiates closure of a magnet valve 5 so that supply of compressed air into feeding device 3 is arrested. The bundle of fibres 2 slackens momentarily and is sucked into a nozzle 13 and conducted from the apparatus through a duct 14. The broken end is restored by stopping the advancing action of rollers 10, 10', passing the end drawn from cheese 11 upwards through shaft 7 and starting the spinning rotor 8. As the rotor reaches operational speed, the ballooning yarn passes a detector wire 12' to operate switch 12 to open valve 5 and restore a negative pressure in the device 3 whereby the suction effect thereof on filbres 2 overcomes that of nozzle 13 and normal running is resumed. In a modification, the microswitch operates a valve (5') in duct 14 the suction effect of which overcomes that due to device 3. As shown in the apparatus of Fig. 3, yarn 21 breakage is detected by a wire 12' which operates microswitch 12 to open magnetic valve 24 so that the bundle of fibres is sucked into nozzle 25 disposed at the junction of front rollers 15, 15', and the inlet of a rotating supply pipe 16 whence fibres are normally ejected onto the inside wall of spinning rotor 18 by a vortical air flow therein due to rotation of a distributing tube 17 and the rotor. In a modified apparatus, a stationary supply pipe 16 is inserted into a spinning rotor (18'). In an application of the invention to a system, such as disclosed in Czechoslovakian Specification 91208, Fig. 9 (not shown), the operation of switch 12, by a detector wire responsive to yarn breakage, opens a valve, as at 24, and also closes at valve, as at 5, to arrest flow in an air suction conduit leading from the rotor casing. After a yarn breakage, the yam may be backed-up by, and perhaps spinning continued with the assistance of or as modified by, suction and/or forwarding or reverse passage of injected compressed air. In one form of yarn breakage detector, Fig. 6, an operating arm 30' of a microswitch 12 is normally held in the position shown by tension in the yarn 9 passing between take-up rollers 10, 10' and over a lower arm of the detector wire 30. Roller 10 is rotatably mounted on a shaft (not shown) supported by a pivotable shaft 31 a spring 32 wound on which presses roller 10 onto rooller 10'. In another detector, an outlet guide wire 30" is separate from detector wire 30'.
Patent GB-1191668-A (GB)
Title: Improvements relating to the Spinning of Textile Yarns
Inventor: SHEPHERD JOHN MICHAEL
IPC: D01H4/08
Filed: 1966-11-08
Abstract: 1,191,668. Open end spinning. T.M.M. (RESEARCH) Ltd. 7 Nov., 1967 [8 Nov., 1966], No. 50030/66. Heading D1D. An open end spinning rotor 11 is closed at one end, as shown its lower end, and is open at its other end and has a wall extending between the ends free from perforations or apertures to provide a fibre collecting surface. As shown, the rotor 11 mounted on a spindle 12 driven by belt 17, is enclosed within a casing 15, the casing being movable to shift spindle 12 out of driving engagement with the belt. An outlet 33 of the casing is connected to a tube 32 leading to a suction pump so that air is drawn into the casing through a funnel shaped fibre inlet 27 and to a lesser extent through the yarn delivery tube 25. Inlet 27 and tube 25 are mounted in a lid 23 which has a downwardly extending part (24), see Fig. 2, not shown, fitting with small clearance within the rotor. A radial recess is provided in the lid adjacent the air outlet 33 so that should the rotor become choked with fibres the air stream will clear the rotor without the lid 23 being removed.
Patent GB-1526330-A (GB)
Title: Coin dispensing apparatus
IPC: A47F10/00
Filed: 1976-12-01
Abstract: 1526330 Coin dispensers NCR CORP 1 Dec 1976 [8 Dec 1975] 50084/76 Heading B8U Coin dispensing apparatus comprises a coin channel 50 which houses a stack of coins 52 biased upwardly by a spring 82 so that the topmost coin in the stack can be ejected into a coin receptacle 36 on actuation of coin ejection means comprising an ejector member 114 mounted on a shaft 92 attached to the reciprocable plunger 90 of a solenoid 88, the latter being mounted on a support plate 86 attached to a cover member 32 hingedly mounted on the apparatus for movement between an open and closed position. The top of the stack of coins 52 abuts against a coin stop member 64.
Patent GB-1329717-A (GB)
Title: Wide band amplifiers
IPC: H03F1/22
Filed: 1970-10-22
Abstract: 1329717 Transistor wide band amplifiers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 Oct 1970 [25 Oct 1969] 50207/70 Heading H3T In a wide band amplifier of the type in which the emitter-base path of a transistor T 2  is connected in the manner shown across the collector-base path of a transistor T 1  of complementary type, a further transistor T 3  has its collector connected to the connection between collector and emitter of T 1  and T 2  and its base connected to the collector of T 2 . The connection of T 2  to T 1  maintains the collectorto-emitter and thus collector-to base voltage of T 1  constant to reduce the effect of collectorbase capacitance, and T 3  allows a large offset between input and output voltages so that when (as shown) the amplifier is used in a differential circuit, large common mode variations can be accommodated. T 2  may be of lateral type and shunted by a small capacitor to comprise the high frequency performance, the effective value of the capacitor being increased by the Miller connection to T 3 . The two halves of the amplifier are provided with current sinks T 6 , T 6 <SP>1</SP> biased from a diode connected transistor T 7  and a capacitor C c  provides a high frequency connection between T 3  and T 3 <SP>1</SP>, T 3  and T 4  form an amplifier having a gain proportional to the relative areas of the emitter-base diodes. The connection between the collector of T 2  and base of T 3  may include an emitter follower (T 5 , Fig. 2, not shown).
Patent GB-1269348-A (GB)
Title: Improvements relating to film cassette assemblies
Inventor: LAND EDWIN HERBERT
IPC: G03B17/26
Filed: 1969-10-13
Abstract: 1,269,348. Multipurpose cassettes. POLAROID CORP. Oct. 13, 1969, No. 50265/69. Headings G2A and G2E. A multipurpose cassette can be used for exposing the film in a camera, processing the film, and then transferring to a projector for projecting the film. When the cassette is mounted in a motion picture camera, the camera drive causes the film initially wound on reel 12 to be transported along a path defined by pulleys 23-27 on to a take-up reel 14. In traversing this path the film passes through the exposure gate 34. As shown the photo-sensitive surface of the film faces inwards so that the exposure is effected through the film base. The film is now on reel 14. The processing takes place as the film is re-wound from reel 14 to reel 12, and this may be effected while the cassette is still in the camera, or after it has been transferred to a projector. The processing reagent is in the form of a viscous fluid in a container 30, which is sealed up until required by a membrane. This is ruptured and the processing reagent forced out of the container by a plunger 36, operated by a driving member 37 extending through a slot 38 in the cassette wall. The reagent is applied to the film across its central area, between the perforations, by a doctor blade 33. Part 16 of the outer wall of the cassette forms with an inner wall a drying chamber 43, and this is made operative at this stage by pumping hot air in through orifice 41 and out through orifice 44. The film is now once more on reel 12. When the cassette is mounted in the projector, the film drive of the latter drives the film once more from reel 12 to reel 14, passing again through the gate 34, now acting as a projector gate in cooperation with a light source 46. The film passes once more through chamber 43, so that the drying is completed. The cassette includes a built-in prismatic element 21 behind the film at the gate 20, shown more clearly in Fig. 3. This has a concave entrance surface 52 (facing downwards towards the light source in Fig. 2). Light from the source entering through surface 52 is reflected from the plane surface 54 through the convex exit surface 53 and then passes through the film 10, which passes over guiding surfaces 56, 57.
Patent GB-1184659-A (GB)
Title: Machine Tool Control System.
IPC: G06F7/68
Filed: 1967-11-06
Abstract: 1,184,659. Programmed control of machine tools. BUNKER-RAMO CORP. Nov. 6, 1967 [Nov.18, 1966], No.50310/67. Heading G3N. The velocity of a machine moving in incremental steps in at least two orthogonal directions is controlled by deriving signals proportional to square of the pulse rate for each direction, summing the signals and comparing with a signal proportional to the square of the derived velocity and varying the commanded pulse rates accordingly. As shown, a punched paper tape 152, bearing programmed digital position commands and machine instructions, is read in blocks by a reader 154; the desired feedrate valve being fed to a reference oscillator 176 and the contouring information fed to a generator 150 deriving pulse trains, V x , V y , V z , representative of desired velocities along co-ordinate axes. The pulse trains are fed on lines 144-148 to a servosystem 143 and on lines 156-160 to squaring circuits 162- 166. The servosystem 143 converts the pulse trains into phase-shift signals which are used to control the tool movements of a milling machine 140. The squaring circuits deliver output signals V x 2, V y <SP>2</SP>, V z <SP>2</SP> which are fed through an OR gate 168 to an input 172 of a reversible counter 174 and the feedrate pulse train from oscillator 176 is fed through a squaring circuit 180 to another input 182 of the counter 174. The counter 174 counts up by one when a pulse is received on input 182 and down by one when a pulse is received on input 172, the net count being continuously delivered to a digitalto-analogue converter 184. The converter delivers an analogue voltage d to a voltage-controlled feedrate oscillator 186 governing the supply of pulses from the contour generator 150 whereby the resultant tool velocity is maintained at the valve set by the programmed feedrate.
Patent GB-1442669-A (GB)
Title: Free pendulum clock
IPC: G04B1/26
Filed: 1973-10-30
Abstract: 1442669 Free pendulum clocks J F WRIGHT 18 Oct 1974 [30 Oct 1973] 50323/73 Heading G3T A free pendulum P is maintained by impulses from a stream of liquid S as a pallet A on the pendulum passes through the stream while at or near its neutral position, the interruption of the stream by the pallet being used as a signal to control the stream and thus maintain the free pendulum and also to actuate a device, e.g. a slave clock, which counts the oscillations of the pendulum. As shown the stream S is delivered from a constant head reservoir R and may be interrupted by the intake scoop B of a balance member C which rests on a fulcrum K but tips when the weight of liquid in a pan on the balance overcomes the effect of a counterweight, allowing the stream to fall upon one end E of a lever F. On tipping, the liquid is emptied from the pan but the latter is held down by catches J, H. The catch H is on the lever F and would disengage the catch J if the other end of that lever were not held down by the stream S impinging thereon. Therefore as the pallet A interrupts the stream, the lever end E rises, the catches disengage, and the balance C returns to the position in which the scoop B interrupts the stream. The pendulum is thus impulsed once every few cycles, and each impulse determines the start of an operation cycle of the balance C. The latter is coupled electrically or mechanically to a slave clock to give a time display. In an alternative arrangement, the stream S acts as the signal stream of a fluid amplifier since it does not act on the lever F directly but deflects a power liquid stream (N), Fig. 2 (not shown) which normally impinges on the lever. A more complex arrangement is also described in which the balance C is eliminated and a slave pendulum (Z), Fig. 3 (not shown) drives a ratchet wheel (2) which, once every thirty seconds, closes a circuit to advance a time indicator (13) and to turn on the stream S. The circuit is held closed and the slave pendulum is restrained until the pallet A on the free pendulum passes through the stream S, deflecting the stream on to a lever (11) to open the circuit and restart the cycle of the slave pendulum.
Patent GB-1347039-A (GB)
Title: Anti-reflection optical coatings for lenses and the like
IPC: G02B5/28
Filed: 1971-10-29
Abstract: 1347039 Anti-reflection coating CANON K K 29 Oct 1971 [29 Oct 1970] 50403/71 Heading G2J A three-layer coating of thicknesses #/ 2 , #/ 2  and #/ 4  (from the optical element) and also of refractive indexes n 2 >n g >n 1 >n 3  where n g  is the refractive index of the optical element and n 1  - n 3  are the layers crushing from the element. The invention applies specially to n g >1À70 and specified coating materials are Al 2 O 3 , CeF 3 , CeO 2  ZnS, ZrO 2  M g F 2 .
Patent GB-1268205-A (GB)
Title: Polymer compositions
Inventor: PRITCHARD JAMES
IPC: C08L21/00
Filed: 1968-10-25
Abstract: 1,268,205. Adhesives. DUNLOP HOLDINGS Ltd. 23 Oct., 1969 [25 Oct., 1968], No. 50651/68. Headings C3P and C3Q. A composition comprises an organic solvent solution of a natural or synthetic rubber, a compound having one or more methylol end groups, and additionally compounds which are capable of reacting to form an aldehyde condensation resin. In the examples polychloroprene is dissolved in a solvent and to it is added a phenolic resin, resorcinol and a formaldehyde generator such as trioxane. The compositions may also contain chlorinated rubber and silica.
Patent GB-1576973-A (GB)
Title: Pallet for magnetic tapes wound on flangeless cores
IPC: G11B23/027
Filed: 1977-12-06
Abstract: The stackable pallet (1), consisting of plastic, serves for archiving magnetic tapes wound on various types of flangeless hubs, in particular for studio purposes or for duplicating recorded tapes. The pallet has a raised boss (3) in the axial centre and having a central bore (4), with a depression (5), provided on the surface of the pallet, by means of two steps from outside to inside in the direct region of the raised boss (3). The pallet is suitable in particular for shipping magnetic tapes of relatively great diameter wound up on flangeless hubs. It is shaped in such a way that it can accommodate hubs of various types. <IMAGE>
Patent GB-1336621-A (GB)
Title: Bearing means for filling machines and the like
IPC: F16C19/00
Filed: 1971-11-02
Abstract: 1336621 Filling machines A-T-O Inc 2 Nov 1971 [2 Nov 1970] 50861/71 Headings B8T and B8C In a rotary filling machine the main bearings 42 are situated outboard of the axis of rotation of the filling head 2 to improve access to the central pipe-carrying parts of the machine and to spread the centrifugal forces more evenly. Each bearing consists of a ball-bearing unit 58 that fits on the upper part of a post 46, which is mounted in an annular channel 48 on a base member 49, and an annular non-metallic, tyrelike member 62 which is secured around the ball-bearing unit 58 and is shaped to fit in a V-shaped groove 44 in the inner surface of a ring gear 24 on which the filler head 2 is carried on circular rib 28. The ring gear 24 is driven by one of the spur gears 30, 32 which carry spoked container handling wheels 38, 40 for feeding containers to, or removing them from, respectively, the filling head 2, which is of the type in which filling spouts are lowered on to and removed from the containers under the control of a cam as the head rotates, the containers being filled by suction from pipes 16B with liquid from pipes 16A. Each post 46 has its upper end offset from the axis of its lower cylindrical part so that by rotating the post in the annular channel 48 a degree of eccentricity is imparted to the rotation of the machine. The bolts 68 by which the channel 48 is fixed to the baseplate 49 are adjustable in slots (70), in the baseplate so that the channel 48 together with the posts 46 and their bearings 42 can be moved relative to the base plate, thus moving the ring gear 24 relative to the spur gears 30, 32 to compensate for wear. Filling head.-Each filling nozzle 12 consists of a nozzle connected to a supply manifold 14 by a liquid supply conduit 16a and a conduit 16b connected to a vacuum chamber in the manifold. The vacuum chamber is connected to a liquid overflow line 22 and to a vacuum line 20, excess liquid passing out through the bottom of the manifold rather than being drawn up the vacuum line.
Patent GB-1284782-A (GB)
Title: Complexes of borate esters and metal chlorides and process for producing same
Inventor: WADE ROBERT C
IPC: C07F5/06
Filed: 1969-10-17
Abstract: 1284782 Boron complexes VENTRON CORP 17 Oct 1969 [18 Nov 1968 23 Dec 1968] 51209/69 Addition to 1281241 Heading C2B Complexes of at least one borate ester and two metal chlorides are prepared by reacting at least one substantially anhydrous borate ester simultaneously or separately with two substantially anhydrous chlorides of Ti (IV), Zr (IV), Hf (IV), Sn (IV), A1 (III), Fe (III), Ga (III), In (III), Sb (V), Mo (V), Nb (V), Ta (V), and W (VI) with the proviso that when one metal chloride is aluminium trichloride, the second metal chloride is other than titanium tetrachloride, in a molar ratio of at least 0À33 moles of total borate ester per mole of total metal chloride, in an inert substantially anhydrous diluent, permitting the metal chlorides to react with the borate ester at temperatures between room temperature and 200‹ C. until the reaction ceases to give off organic chloride and optionally removing any volatiles by evaporation. Preferred diluents include excess borate ester, methylene chloride, chloroform or carbon tetrachloride. The examples describe the reaction of methyl borate in methylene chloride with (a) Ti and Mo chlorides, (2) W and Ti chlorides, and (3) Mo and W chlorides.
Patent GB-1292727-A (GB)
Title: Positioning device
Inventor: JILKE WILLI
IPC: G05D3/14
Filed: 1970-10-28
Abstract: 1292727 Measuring Displacement CALIFORNIA COMPUTER PRODUCTS Inc 28 Oct 1970 [15 Dec 1969] 51295/70 Heading G1N [Also in Division G4] A coarse/fine positioning system of the type comprising a magnetically permeable toothed rack 2 and a sensing head having 2 'e'-shaped cores spaced apart a distance of 1¢ times the rack pitch and having a primary and secondary thereon, the outputs of the secondaries being summed in opposition, has a level detector and counter to monitor the distance moved by the heads in response to digital signals (see Division G4), and comprises a fine positioning mechanism adapted to detect the phase of the summed secondary signals and to move the heads to an adjacent null-point. A switch 55 is enabled to combine a square wave derived from an oscillator 52 also activating the primaries of the heads with the summed secondary signals at 51 and to pass this combined waveform to an integrator 57 to apply to the motor unit 60 a voltage of magnitude indicative of the distance, from a null-point and polarity of the direction of travel exclusive switches A,B are controlled at 80 to prevent motor 60 moving in a wrong direction in the event of overshoot.