baber/WOPTO huggingface dataset:
Patent GB-1533797-A (GB)
Title: Liquid sludge disposal
IPC: A01G25/09
Filed: 1976-07-28
Abstract: 1533797 Spraying liquid sludge FARROW IRRIGATION Ltd 20 July 1977 [28 July 1976] 31481/76 Heading AID Liquid sludge is sprayed from an oscillating gun 2 carried on a land sledge 1 which is drawn along the field as the supply hose 4 is wound onto a reel 5 driven by the tractor power take-off, the hose 4 and the gun 2 being automatically emptied of sludge when sludge ceases to flow, by discharge of compressed air from a reservoir 10 filled by a compressor 9 during operation. The compressed air is released by a valve 11 operated by a drop in pressure in -the sludge supply. The reel 5 is stopped by contact of the sledge with a bar 12 which is connected to a hydraulic cylinder 13 connected to the drive control of the reel 5. Pumping of the sludge is also halted by operation of the bar 12. The sledge 1 is provided with an anchor post 3 which pivots when sludge flows to the gun 2, to release the sledge 1.
Patent GB-511594-A (GB)
Title: A new and improved method of treating glass fibres
IPC: C03C25/601
Filed: 1937-11-17
Abstract: 511,594. Making glass fibres. NAAMLOOZE VENNOOTSCHAP MAATSCHAPPIJ TOT BEHEER EN EXPLOITATIE VAN OCTROOIEN. Nov. 17, 1937, No. 31601. Void. Convention date, Nov. 17, 1936. [Class 56] Glass fibres are subjected to the action of a substance which is capable of etching the glass either to roughen the fibres, or to reduce their diameters, or to strengthen them by removing surface discontinuities. Hydrofluoric acid, or fluorides in acid solution, or alkaline liquors such as solutions of sodium or potassium hydroxide, may be used as corrosives, and suitable baths may be used for stopping the action. The treatment may be applied to the fibres or to yarns or fabricated material. After treatment, lubricating or coating materials may be applied.
Patent GB-1310444-A (GB)
Title: Electrostatic image development apparatus
IPC: G03G15/06
Filed: 1970-06-30
Abstract: 1310444 Electro-photographic development apparatus XEROX CORP 30 June 1970 [3 July 1969 (4)] 31614/70 Heading G2H A development electrode in an opposed flow, two component developer system is in close parallel relationship with a photo-conductive surface 10 and provides an increasing potential difference in the direction of travel of surface 10 being formed of three control members 70, 71, 72 each held at a different potential, the potentials being chosen to control the toner concentration gradient across the flow of developer. Two of the control members 70, 71 have indentations for redirecting the developer flow on to the surface 10. The first electrode member 70 (in the direction of travel of surface 10 through the development zone) is held at a potential lower than in the background areas of the charge image so that toner particles are forced upwards towards the surface 10 producing a high toner concentration adjacent the surface 10. Toner particles are dislodged from carrier particles by impaction on the drum surface 10 caused by a chamfer 74 on the edge of the electrode 70. The second electrode member 71 is held at a potential intermediate that in the image and non-image areas resulting in the removal of toner from background areas as well as development in image areas. "Lead edge effect" is reduced by providing a groove (85) Fig. 4, (not shown) in the inverted portion of electrode 71 so as to direct the developer flow into contact with the drum surface 10. The third electrode 72, acting as a clean-up electrode, is held at a potential 150-700 volts above the potential in image areas thereby attracting toner particles to the electrode side of the flow and allowing denuded carrier particles to remove weakly adhering particles from the surface 10.
Patent GB-825427-A (GB)
Title: Improvements in or relating to automatic tap holder drive mechanisms
Inventor: SCHWARTZ BERNARD PAUL MANFRED
IPC: B23G1/46
Filed: 1956-10-17
Abstract: 825,427. Tapping; mounting chucks. THOKA MACHINERY SUPPLIES Ltd. Oct. 9, 1957 [Oct. 17, 1956], No. 31641/56. Class 83 (3). A tapping or threading drive-mechanism comprises a housing 1 connectable to the feedmember of a machine, means 2 for connection to the rotary spindle of the machine to rotate a tap-holder spindle 6 in reverse directions, and snap-action means for reversing the drive. The drive gear 2 rotates the spindle 6 forwardly through a gear 3, a gear 5, clutch-pins 7, clutchteeth 8, and a gear 4, as in the lower half of Fig. 1. The reverse drive is through planetgears 9 on fixed spindles 18 and a gear 10 clutched to the spindle by teeth 8<SP>1</SP>, 10<SP>1</SP>. The spindle 6 is connected to drive the chuck 11 through balls 12 running in grooves, of a length greater than the thread-length to be cut. Tension and compression springs 15, 16 hold the chuck in a position of equilibrium slightly in advance of that shown at the bottom of Fig. 1. A cover 19 prevents the ingress of dirt. In operation, the housing 1 is traversed at a rapid rate until the tap has engaged the work and the spring 15 is compressed as shown in the lower half of Fig. 1. The traverse then proceeds at a slow rate. The tap, moving forwardly, tensions the spring 16 until the force is sufficient to pull the spindle forwardly, causing a cam-member 8a to force balls 25 outwardly against a spring 26. The clutch 7, 8 is thereby released and the clutch 8<SP>1</SP>, 10<SP>1</SP> engaged, causing the tap to rotate at a greatly increased speed in the reverse direction. The clutches are again reversed when the spring 15 is sufficiently compressed. The tap then advances. The reciprocating movements of the tap continue while the housing 1 is fed steadily forwards until a disc 27 strikes a limit switch and causes a rapid-return movement of the housing 1. A further limit switch is operated to stop the rapid-return within the limit of movement of the balls 12. When the tap is free of the work, a time-relay operates to re-start the rapidreturn movement. The tap may be mounted on a head carrying a drill for the next hole to be tapped, the feed-movements for the drill and tap being the same. It is stated that the sudden reversal results in re-cutting commencing against a partially cut chip, instead of the peak of the tap-thread having to start a new cut. In a modification, the spring 15 is omitted. In a further modification, to ensure that the initial cut is not of too great a length so that over-heating occurs, an additional compression spring is provided, which augments the pull of the tension spring 16. After the initial reversal, the additional compression spring is rendered ineffective. Mounting chucks.-In a final modification, the spindle is pressed rearwardly by a spring 41, Fig. 3, and the chuck incorporates a centralizing spring 52, Fig. 4, the springs 41, 52 acting in a way similar to that of the springs 15, 16 in Fig. 1.
Patent GB-1166157-A (GB)
Title: Improvements in or relating to Signal Generators
Inventor: PARKYN JOHN MICHAEL
IPC: H03C3/22
Filed: 1967-07-10
Abstract: 1,166,157. Frequency modulation. MARCONI INSTRUMENTS Ltd. 18 March, 1968 [10 July, 1967], No. 31684/67. Heading H3R. A frequency modulation signal generator comprises: a calibrated variable D.C. source 1, 2; a calibrated variable source of modulation frequency signal 5, 6; a combining network including potentiometer 10; a manually variable carrier frequency oscillator 11 having its control ganged to that of the potentiometer 10, and having a voltage variable control fed from the potentiometer 10 and also from a second variable D.C. source 13, 14; a mixer 16 fed with the output from the oscillator and also from a reference oscillator 18; and a beat frequency indicator 23 connected to the mixer output. The source 13, 14 provides fine tuning control, and the source 1, 3 sets the frequency shift.
Patent GB-174472-A (GB)
Title: Improvements in piano-flanges
IPC: G10C3/16
Filed: 1920-11-09
Abstract: 174,472. Koll, E. Nov. 9, 1920. Pianoforte actions.- In a hammer mounting, the flange 6 has a slot 6<1>, permitting adjustment on the rail 7 by the securing-screw 8, and a facial groove 12 in which the turned-in end 13 of the clip 9 takes. The screw 16 clamping the clip 9 to the flange 6 is inserted from the front, and registering grooves on the clip and flange receive the pivot-pin 11.
Patent GB-1444393-A (GB)
Title: Flow control valve
IPC: F16K31/383
Filed: 1973-07-04
Abstract: 1444393 Valves BOC INTERNATIONAL Ltd 3 Oct 1974 [4 July 1973] 31814/73 Heading F2V A valve closure member 18 is normally held against a seat 22 by the inlet pressure acting via a throttle 26 in the chamber 24 defined by the closure member but is moved away from the seat when a pilot valve closure member constituted by a permanent magnet 14 is moved away from a passage way 16 in the end face of the closure member, connecting the chamber to an outlet, by a permanent magnet 32.
Patent GB-1199116-A (GB)
Title: Evaporator
IPC: F28B3/08
Filed: 1968-07-03
Abstract: 1,199,116. Evaporators, progressive flow type. BATTELLE DEVELOPMENT CORP. 3 July, 1968 [4 July, 1967], No. 31832/68. Heading B1B. A solution is concentrated by evaporation in chamber 5 within a rotary casing 1 from the inner wall 3 of which project a series of annular, heatable blades 6a . . 6l which define, in conjunction with wall 3, a series of annular channels 7a .. 7l connected in pairs of passages 8a . . 8f formed along the radially outer edges of alternate blades 6a, 6c ... The radial length of the successive blades decreases in the downward direction. In the evaporator as shown, the blades are hollow, and steam for heating the blades is supplied to chamber 4 through duct 15; and the condensate, driven out of the blades by centrifugal force, is discharged from chamber 4 through nozzle 19 into spiral trough 20. It is mentioned that the blades may be heated in a different manner, e.g. by electrical means. The solution to be concentrated is fed through nozzle 9 into channel 7a, flows by centrifugal force outwardly over the upper surface of blade 6a and passes through passage 8a into channel 7b between the hot surface of blades 6a and 6b. When channel 7b is full of solution, channel 7a is still not quite full since blade 6a is longer than blade 6b. Thus further flow of solution into channel 7a causes the solution in channel 7b to overflow over the radially inner edge of blade 6b. This overflow is urged by centrifugal force along channel 7c and thence through passage 8b into channel 7d. This alternate inward and outward movement of the solution continues down the evaporator. While thus flowing in the channels between the hot blades, the solution is caused to boil, and the vapour which is given off leaves the solution as it flows over the inner edges of blades 6b, 6d ... The vapour flows out of the evaporator through duct 10 which is connected to a centrifugal condenser 21. Concentrated solution is forced out of the evaporator through channel 7m and nozzle 13 into spiral trough 14. In a modified design, the length of each non-apertured blade is the same as the length of the apertured blade beneath it. Several evaporator chambers can be arranged along a common axis of rotation, with the solution passing from one chamber to another in series, while the solvent vapour given off in each chamber (except the last) is used to heat the next chamber.
Patent GB-961335-A (GB)
Title: Improvements in or relating to communication systems
IPC: H04J1/00
Filed: 1961-09-06
Abstract: 961,335. Duplex telegraphy. SIEMENS & HALSKE A.G. Sept. 6, 1961 [Sept. 7, 1960], No. 32010/61. Heading H4R. Transmission from Tn11 to Tn21 is via the wide-band band-pass filters F11a and F21a and pair FSK1, that from Tn21 to Tn11 via the narrowband band-pass filters F22b and F12b and pair FSK2. Similar arrangements are provided for stations Tn12 and Tn22 using the wide-band portion of FSK2 (E-W) and the narrowband portion of FSK1 (W-E). The invention is particularly useful for telex connections in which the majority of signals are from the calling to the called station. High speed transmission (500-2000 Baud) may be used in that direction and low speed (50 Baud) in the opposite direction. One pair may provide one high-speed path and one low-speed path for a single telex connection.
Patent GB-536654-A (GB)
Title: Improvements in and relating to hydraulic reducing valves
IPC: G05D16/10
Filed: 1939-12-12
Abstract: 536,654. Valves. TOWLER, J. M., and TOWLER, F. H. Dec. 12, 1939, No. 32030. [Class 135] A pressureregulating valve is constructed of a valve body 1 bored to receive a spring- controlled plunger 2 formed with one or more axial bores 6 provided with radial ports which can connect with inlet ports 3 and outlets 4. In its simplest form an adjustable spring normally presses the plunger 2 against stops 16 Fig. 1, arranged in a space 9 in the valve body above the plunger 2, but when the pressure in space 9 rises to a pre-determined value the plunger 2 is depressed and the supply of liquid is cut off thus reducing the outlet pressure. In a modification, Fig. 4, the space 9 is arranged below the plunger 2 and the inlet supply is cut off by the spring 7 when the outlet pressure rises too high. Normally the fluid passes from the inlet 3 to a groove 11 in the plunger which is formed with radial ports 5 connecting by an axial bore 6 and other radial ports 5 to a second groove 11 communi-  cating with the outlet 4. When the plunger is depressed by the spring 7 the valve is closed by a double cut-off. A reducing valve as in Fig. 1 may also be formed with a double cut-off, or with four cut-offs in which case the plunger is formed with four grooves 11 and two independent axial bores 6, and the valve body is formed with an annular groove capable of joining the two pairs of grooves 11. Specification 534,937 is referred to.
Patent GB-1477505-A (GB)
Title: Screw drives
IPC: F02N15/06
Filed: 1974-07-19
Abstract: 1477505 Engine starter drive ROBERT BOSCH GmbH 19 July 1974 [21 July 1973] 32056/74 Heading F1K An engine starter drive includes a sleeve 10 splined on an electric motor drive-shaft 6 and surrounded by a driver 16 to drive the starter pinion 20 axially, screw threads 17 on a flange 18 of the driver engaging corresponding threads 11 on the sleeve 10, and at least one flyweight 24 pivoted at 25 on the flange 18 and spring-biased inwardly to engage a groove 29 in sleeve 10 to lock together the sleeve and driver after relative axial movement therebetween to engage pinion 20 with flywheel rim 34, a resilient ring 12 cushioning the relative axial movement between sleeve and driver as the flyweight locks them together. When the engine starts, the increased speed throws the flyweights 24 radially outwards, and driver 16 screws back along sleeve 10. A plastics cover 30 on driver 16 acts with a cover plate 32 to form a brake.
Patent GB-1390860-A (GB)
Title: Honeycomb materials
IPC: B31D3/02
Filed: 1972-07-07
Abstract: 1390860 Laminating process and apparatus DUFAYLITE DEVELOPMENTS Ltd 29 June 1973 [7 July 1972] 32062/72 Heading B5R A process for the manufacture of expandable slices of structural honeycomb material for use as fruit dividers or in other packaging applications comprises advancing a plurality of strips or webs of sheet material, e.g. thin cardboard into face to face relationship, whilst applying adhesive to the faces of the strips or webs to form a multi-ply material in which the material of the strips or webs is joined in face to face relationship by bands of adhesive, e.g. an aqueous gum or dextrin so positioned that the bands by which each alternate pair of contacting faces of the strips or webs are secured together are staggered to lie between the bands by which the remaining pairs of contacting faces are secured together, and that the outer faces of the multi-ply material are free from adhesive to form an expandable material and, when webs are used, cutting the multi-ply material across the direction of the bands of adhesive to form the slices. An apparatus for the manufacture of unexpanded slices of structural honeycomb material comprises mechanism for advancing a plurality of webs into face to face relationship to form a multi-ply material, adhesive applying means for applying bands of adhesive to faces of the advancing webs in such positions that the bands of adhesive by which each alternate pair of contacting faces of the webs in the multi-ply material are secured together are staggered to lie between the bands by which the remaining pairs of contacting faces are secured together, and the outer faces of the multi-ply material are free from adhesive, and a cutting device for cutting the multi-ply material across the direction of the bands of adhesive. The adhesive may be applied, e.g. by printing rollers or spray heads to all faces which are to be secured to other faces, alternatively the adhesive may be applied to one only of each pair of contacting faces. The bands of adhesive are normally applied longitudinally of the webs and slicing effected transverse to this direction; alternatively, the adhesive may be applied transversely of the webs and slicing effected longitudinally of the webs. In the embodiment shown, webs of thin cardboard are drawn from supply rolls 1 and are each printed on one face with bands of adhesive by printing apparatus 2, further bands of adhesive staggered to lie between the bands applied by apparatus 2 being applied to the other face of each web by printing apparatus 3, the adhesively printed webs being interleaved between unprinted webs drawn from five supply rolls 4. Driven rollers 5, provided with backing rollers 6 serve to draw the webs from the supply rolls 1 and 4, to advance the webs and bring them into contact to form a wireply material at 7, the resultant laminate being cut transversely into pieces 8 by rotary cutter 9, the pieces stacked and the stack sliced across the bands of adhesive.
Patent GB-885776-A (GB)
Title: Improvements in or relating to gas cooled nuclear reactors
Inventor: ILIFFE CEDRIC EUAN
IPC: G21C5/12
Filed: 1957-10-15
Abstract: 885,776. Nuclear reactors. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. Dec. 23, 1958 [Oct. 15, 1957], No. 32167/57. Class 39(4) A gas-cooled nuclear reactor has a moderator consisting of 70% to 95% by weight heavy water and the rest light water. The coolant may be CO 2 , the fuel beryllium-canned uranium oxide plates, using uranium of twice-natural enrichment.
Patent GB-395561-A (GB)
Title: Improvements in and relating to india-rubber and like balls
IPC: A63B37/14
Filed: 1932-11-14
Abstract: 395,561. Balls for games. GOOGLY, Ltd., 14, Cockspur Street, and DOBBINS, E. J., 12A, Buckland Crescent, Belsize Park, both in London. Nov. 14, 1932, No. 32172. [Class 132 (ii).] A spherical bouncing ball of soft resilient material is constructed so as to be more easily deformable in some radial directions than in others with the object of imparting to the ball an erratic rebound. In the form shown in Fig. 3 the ball is made of four quadrants of soft rubber, the quadrants B<1>, B<2> being of softer rubber than the quadrants A<1>, A2. Instead of quadrants, pieces of segmental or zone shape may be used as parts of the ball, or irregular pieces may be embedded in softer or harder rubber. In a modification shown in Fig. 10, a hole passing diametrically through the ball is filled in with rubber J<1> harder or softer than the remainder of the ball. In Fig. 11 is shown a ball in which a core K is formed with hollows K<1>, K<2> and is provided with an outer rubber cover K3.
Patent GB-1449470-A (GB)
Title: Crossed field amplifiers
IPC: H01J23/075
Filed: 1973-07-06
Abstract: 1449470 Travelling-wave tubes DEFENCE SECRETARY OF STATE FOR 1 Aug 1974 [6 July 1973] 32202/73 Heading H1D In a crossed-field amplifier the magnetic field in the gun section is arranged to have a normal component at the cathode surface which is non-uniform across the direction of electron flow, in such a manner that noise in the radio frequency output signal is reduced. As shown for the gun of Fig. 3, in which 11, 12, and 13 are the heated cathode, the anode, and a pair of side electrodes, respectively, the magnetic field produced by the pole pieces 14 and 15 may be curved, by suitably shaping the polepieces, or by variation of the winding of an electromagnet, to provide a maximum normal component at the two sides of the cathode. Alternatively, if the magnetic field is uniform, the cathode may be curved (Fig. 3, not shown) to produce a similar result. A plane, tilted cathode in a curved magnetic field is also disclosed (Fig. 5, not shown), and reference is made to the use of an auxiliary solenoid to produce an additional uniform normal component of field. The noise may be still further reduced by maintaining the side electrodes 13 about 300 V. negative with respect to the cathode.
Patent GB-682968-A (GB)
Title: Pressure containers, especially hot water storage tanks
IPC: F24H1/20
Filed: 1949-12-19
Abstract: 682,968. Hot-water boilers. ANDERSEN, G. Dec. 19, 1949 [Dec. 28, 1948], No. 32473/49. Class 64 (i) [Also in Group XXIX] A container 1, e.g. a hotwater storage tank, designed to withstand internal pressure and having a substantially constant cross-section throughout the greater part of its height, is characterised in that the container wall in that portion having substantially constant cross section comprises two adjoining cylindrical segments which extend along circular arcs of more than 180‹ the inter-sections of the segments being connected by a plane wall 2 which functions as a tie to resist internal pressure within the container and divides the container space into two communicating compartments. The hot-water tank shown is heated by an electric heating element 5 and has a hot-water outlet pipe 15, a cold water inlet pipe 13, and a thermostat 12. A baffle 14 serves to deflect the incoming water downwardly to the bottom of the tank. The tank 1 is supported by heat insulating members 8 within an outer casing comprising a plane back plate 6 and a bowed front 7. In Fig. 4 (Cancelled) (not shown) of the Specification as open to inspection under Sect. 91, additional arrangements are shown in which the container is divided into three compartments by two transverse walls and by three walls radiating from a central point. This subject-matter does not appear in the Specification as accepted.
Patent GB-645866-A (GB)
Title: Telecommunication exchange equipment
IPC: H04Q3/52
Filed: 1946-11-01
Abstract: 645,866. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. Nov. 1, 1946, No. 32483. Convention date, Nov. 14, 1945. Drawings to Specification. [Class 40 (iv)] A line finder comprises electronic means for connecting one of a first series of pulse channels to one of a second series of such channels and electronic means are provided to busy such a seized second channel against intrusion by another channel of the first series. The invention is described with reference to one of the systems described in Specification 644,571 which claims other features.