baber/WOPTO huggingface dataset:
Patent GB-1466985-A (GB)
Title: Distributed electron deflection structure employing dielectric support
IPC: H01J29/02
Filed: 1974-05-30
Abstract: 1466985 Electron beam deflecting system TEKTRONIX Inc 30 May 1974 [19 July 1973] 23969/74 Heading H1D To support a flat-faced helical delay line in a cathode-ray tube, in order to provide an irregularity-free travelling field between the line 22 and either a similar complementary line 23 or an earth plane (Figs. 1, 2, 3, not shown) to deflect an electron beam, the teeth 19 of a dielectric comb, integral with a dielectric base or inserted into holes in a glass rod 20, are bonded to every turn or to a fraction of the turns of the helix. Various arrangements of balanced or single sided deflection systems are illustrated (Fig. 3, not shown). The dielectric supports may be made slightly conducting if necessary to bleed stray charge.
Patent GB-863388-A (GB)
Title: Switching circuits
IPC: H04Q3/00
Filed: 1958-07-25
Abstract: 863,388. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. July 25, 1958 [Aug. 30, 1957], No. 24010/58. Class 40 (4). A switching circuit comprises row conductors 1 and column conductors 2 having a series circuit consisting of a rectifier Gl and the operating winding of a relay R connected at each crosspoint, the relay at a cross-point, e.g. R12, being operated by connecting the common terminal of a double voltage source E to the relevant row (or column) conductor and one of the outer terminals of the source E to the relevant column (or row) conductor, so that current flows through the relay operating coil and the rectifier (which is connected to present low impedance to this current) to operate the relay. The relay in operating completes a holding circuit by connecting the other outer terminal of the source E to the junction of its operating winding and the rectifier. The column (or row) conductors are permanently connected via further rectifiers 7 to the common terminal of the source E so that when the operating potentials are removed, the operated relay holds via the further rectifier concerned and the common terminal of the source E.
Patent GB-500302-A (GB)
Title: Improvements in the manufacture of acetylene
IPC: C10H15/12
Filed: 1937-09-03
Abstract: 500,302. Mixing - apparatus. LINDE AIR PRODUCTS CO. Sept. 3, 1937, No. 24064. Convention date, Oct. 1,. 1936. [Class 86] [Also in Group IV] In an apparatus in which acetylene and substantially dry calcium hydrate are obtained from calcium carbide and water, the charge in the reaction vessel 10, Fig. 1, is agitated by apparatus comprising (1) a frame 40, 41 keyed at 43 to an inner shaft 44, and (2) blades 50 keyed to a hollow shaft 48 which surrounds the shaft 44. Gearing is described whereby the frame 40, 41 and the blades 50 are caused to rotate in opposite directions. Fig. 2 shows a modified apparatus in which the reaction vessel 70 extends through the bottom 72 of a tank 71 to form an annular space 73 into which the hydrate is displaced. On its outer surface the tank 71 carries an annular water seal 76 into which the serrated skirt 79 of the tank cover 78 depends. An agitating device is provided comprising (1) a frame of the shape shown in Fig. 4, keyed to an outer shaft 83 which ends at a point near the bottom 84 of the vessel 70, and (2) blades 106 mounted on a shaft 93 which, below the vessel 70, is enclosed within the shaft 83. The frame comprises side-members 86 and cross-bars 85, 87 for agitating the charge in the vessel 70, arms 94, 95 for moving the hydrate in the annular space 73 to an aperture 140, vertical bars 89 which prevent deposition of hydrate on the walls of the tank 71, cross-bars 88, 90, supports 91, 92, and, at the centre of each of the members 85, 87, 88 and 90, hollow hubs which rotato freely on the shaft 93. The cross-bar 90 carries also bars 96, 97 for stirring the water in the seal 76 and one of the bars 97 carries a rod 113 which actuates a bell 114 as the frame rotates. Rotation of the shaft 93 is indicated by a bell 112, operated by an arm 111 carried on an extension of the shaft 93. Gearing is described whereby the shafts 83, 93 are rotated in opposite directions.
Patent GB-831001-A (GB)
Title: N-alkyl monothiooxamides
IPC: C07C279/28
Filed: 1957-07-30
Abstract: The invention comprises N-alkyl substituted monothio-oxamides of the formula <FORM:0831001/IV (b)/1> in which R is an alkyl radical. These compounds are prepared by reacting monothio-oxamide with a primary amine, the process being combined if desired with the preparation of monothio-oxamide from cyanoformamide and hydrogen sulphide, according to Specification 831,002.ALSO:A vulcanizable composition comprises Neoprene type W, phenyl-b -naphthylamine, stearic acid, light calcined magnesia, semi-reinforcing furnace black, zinc oxide and an N-alkyl substituted monothiooxamide of the formula <FORM:0831001/IV (a)/1> (in which R is an alkyl radical) as an accelerator.  Specification 831,002 is referred to.
Patent GB-1135222-A (GB)
Title: Improvements in or relating to suspension systems for the rear wheels of motor cycles and like vehicles
Inventor: HELE DOUGLAS LIONEL
IPC: B62K25/28
Filed: 1965-06-08
Abstract: 1,135,222. Cycle suspension systems. BIRMINGHAM SMALL ARMS CO. Ltd. 4 July, 1966 [8 June, 1965], No. 24108/65. Heading B7E. A telescopic strut 12 enclosing a coil spring and incorporating hydraulic shock absorbers is pivoted at 14 to a cycle frame and at 11 to an arm 8 pivoted at its other end to the frame. A rear wheel spindle 7 is mounted in a slotted lug 17 secured to the tube 18 so that the spindle 7 moves substantially along the line AA which is an arc of a circle having its centre on the driving shaft axis 10. The complete suspension comprises two linkages as shown secured together to embrace the wheel.
Patent GB-682679-A (GB)
Title: An improved device for emptying fine ash, slag and the like from furnace installations
IPC: F23J1/02
Filed: 1949-09-21
Abstract: 682,679. Discharging ashes, &c. MARTIN, J. Sept. 21, 1949 [Oct. 1, 1948], No. 24215/49. Class 51 (i) [Also in Group XXX] Ash from a furnace installation falls down a shaft 1 to a chamber 2 containing water and is removed by a conveyer comprising two parallel endless chains 4 connected by angle irons 6 so arranged that the normally horizontal portions of the angle irons form a surface interrupted at regular intervals by parallel gaps, and the top run of the conveyer is caused to sag so that the angle irons abut as in Fig. 3 to form in the region below the shaft, a continuous supporting surface for carrying the ash away. The lower run is similarly sagged so that the angle irons fixed to the chains are separated to form gaps 9, Fig. 4, through which fine ash in suspension in the water falls to the bottom of the chamber and is conveyed around the return shaft 7 to be discharged at a. Alternatively, the angle irons are pivotally mounted on the chain pins 13, Fig. 6, and when in the lower run fall by gravity to form the gaps. Guide plates 12 or jockey pulleys determine the path of the upper run of the conveyer. Alternatively, the sag may be controlled by directly coupling the driving and return shafts 8, 7 through means enabling one shaft to commence to rotate before the other, the lag being adjustable.
Patent GB-205291-A (GB)
Title: Improvements in thermometers
IPC: G01J5/38
Filed: 1922-09-07
Abstract: 205,291. McNally, F. Sept. 7, 1922. Thermometers. - A solar radiation thermometer C supported by two coiled springs B in an evacuated glass casing A is provided with an enlargement D at the end of the stem to prevent slipping through the spring B. The enlargement is extended in the form of a cone which is surrounded by a spring E abutting against the casing to check end movement in the opposite direction.
Patent GB-1262484-A (GB)
Title: Cratch for dressing animal carcases
Inventor: HAWKER VICTOR WALLISS
IPC: A22B7/00
Filed: 1968-05-21
Abstract: 1,262,484. Cratches for dressing animal carcases. BRISTOL SAW-CHINE CO. Ltd. [trading as BRISTOL ABATTOIR EQUIPMENT CO.] 6 May, 1969 [21 May, 1968], No. 24271/ 68. Heading A2U. [Also in Division B8] A cratch for dressing animal carcases comprises an endless slatted conveyer, the load bearing surfaces of the slats being bowed to receive an animal carcase. As shown, the slats 24 are arranged in spaced groups of six, each group being adapted to support the carcase 26 of e.g. a sheep such that the heads of the carcases can hang down in the spaces between the groups of slats. The slats are preferably carried by a pair of endless roller chains 22 supported on longitudinally slidable tensioning sprocket wheels 20 and driving sprocket wheels (not shown) within a housing 28. The upper runs of the chains are supported by their rollers running on angle irons 38, similar supports (not shown) being provided for the lower run. Plates 40 covering the lower run act as guards and facilitate cleaning of the conveyer. The carcases are supplied to the conveyer by an overhead rail 42 from which the carcases are suspended as at 46. Another overhead rail 44 is provided on to which the dressed carcases are transferred for removal to a further processing stage. In a modification (not shown) the discharge end of the upper run of the slatted conveyer is at a higher level than the remainder of the upper run to facilitate such transfer.
Patent GB-155069-A (GB)
Title: Improvements in or relating to means for heating water quickly, applicable to kettles, boilers and the like
IPC: A47J27/022
Filed: 1919-10-06
Abstract: 155,069. Bint, F. C. Oct. 6, 1919. Boilers; set-pans.-The heating-surface of the bottoms of boilers, coppers, kettles, &c. is increased by pressing out radial channels b which are covered in part by plates c, leaving apertures at each end for circulation.
Patent GB-812438-A (GB)
Title: Improvements in and relating to the disposal of pulp mill effluent and other aqueousliquids containing non-volatile oxidisable components
Inventor: DAROUX WILLIAM GERARD
IPC: C02F1/72
Filed: 1956-08-09
Abstract: 812,438. Refuse furnaces. COURTAULDS Ltd. Aug. 8, 1957 [Aug. 9, 1956], No. 24382/56. Class 51 (1). Pulp mill effluent is burnt in a chamber previously heated to a temperature sufficient to evaporate the liquid content by passing air through the solid residues whilst the chamber is still hot enough to support combustion. An incinerating plant comprises three cylindrical, refractorylined steel chambers 1, 2, 3, each filled with chequered brickwork and having valved-controlled effluent, air and oil fuel inlets 4, 6, 8, and valve-controlled steam and waste gas flue outlets 12, 10. Steam is led to an accumulator 13, from whence, after cleaning, it is used for power, whilst the waste gases pass to a chimney 11. In operation, air and oil are passed via pumps 9, 7 into the chamber 1 to heat the brickwork, the steam and flue outlets being closed and open respectively. The air, oil and flue valves are then closed, the steam outlet is opened and effluent is forced by a pump 5 on to the brickwork, the resulting steam passing to the accumulator. The chamber 2 is now heated by oil firing and the effluent inlet and steam outlet of the chamber 1 are closed whilst the air inlet and flue outlet are opened, so that air may be passed through the hot chamber to effect combustion of the solid residues. During this process effluent is fed into and evaporated in the chamber 2 prior to its combustion phase which is simultaneous with the next evaporation phase in the chamber 1. This operational cycle is repeated until one chamber requires cleaning when the third one, 3, is brought into use. Depending upon its combustible content, the effluent may be either diluted with water or mixed with added solid carbonaceous matter.
Patent GB-1180307-A (GB)
Title: Photographic Exposure Meter
IPC: G01J1/42
Filed: 1968-05-22
Abstract: 1,180,307. Exposure meters. AGFAGEVAERT A.G. May 22, 1968 [May 24, 1967], No. 24384/68. Heading G1A. [Also in Division G2] A photographic exposure meter comprises a photo-resistor 3 responsive to the ambient illumination and thereby modifying the signal input to an amplifying transistor 9, a variable resistor 6 (and if required further variable resistor 7) by which exposure factors e.g. film sensitivity, are pre-selected, connected in circuit with an amplifying transistor 10, the outputs of the transistors being connected in opposition and the difference in these outputs being monitored by a galvanometer 16. Thus, the exposure indicated by the galvanometer takes into account both prevailing illumination and the pre-selected exposure factors. Instead of resistors 6, 7, a series of fixed resistors of different values is provided together with a selector switch.
Patent GB-1040143-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H71/52
Filed: 1963-06-20
Abstract: 1,040,143. Automatic circuit breakers. GENERAL ELECTRIC CO. June 20, 1963 [July 17, 1962; July 18, 1962], No. 24523/63. Heading H2B. In an automatic circuit-breaker of the kind having a toggle linkage 12, 13 interconnecting a pivotally mounted contact arm 7 and a releasably latched support arm 17, one of the toggle links 13 is provided with an extension arm 13<SP>1</SP> which, in the closed and tripped conditions of the breaker, engages a stationary stop 24 to limit movement of the toggle linkage. In an alternative embodiment (Fig. 1, not shown), the extension arm 13A engages with the stationary pivot 8 of the contact arm 7. In the tripped condition shown the arm 13<SP>1</SP> and stop 24 co-operate to prevent the toggle linkage straightening and thus the contact 7 rebounding into the closed position. In the closed position (Fig. 2, not shown), after the toggle linkage has been moved overcentre by a tension spring 22 and handle 20, they prevent collapse of the toggle and thus opening of the contacts.
Patent GB-913816-A (GB)
Title: Improvements in and relating to waveguides
Inventor: MARTIN RONALD CYRIL
IPC: H01P1/18
Filed: 1959-07-17
Abstract: 913,816. Waveguides; phase-shifters. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 13, 1960 [July 17, 1959], No. 24652/59. Class 40 (8). [Also in Group XXXVI] A rectangular waveguide 1 is provided with a phaseshifting device 2 comprising two rectangular wafers 3 of insulating material, e.g. ceramic material such as " Simtox "  (Registered Trade Mark), secured together in edge-to-edge relation with a metallic layer 4 therebetween, the crosssectional dimensions of the wafers being such that they will not individually support unwanted energy modes in the waveguide, the device 2 being located in the waveguide with the longitudinal axes of the wafers and of the waveguide substantially parallel. The metallic layer 4 can be a sheet of metal foil clamped between the wafers, or can be formed by metallizing adjacent edges of the wafers and brazing them together, or by metallizing one edge of one wafer and glazing one edge of the other wafer and fusing the metallized and glazed edges together. The phase-shifting device 2 is attached to one of the narrow walls of the waveguide and the position of the device may be made adjustable towards or away from the longitudinal axis of the waveguide.
Patent GB-599763-A (GB)
Title: A metering arrangement for measuring short intervals of time
IPC: G04F10/10
Filed: 1945-09-24
Abstract: 599,763. Measurement of short time intervals. JORGENSEN, M. O., and WEIBEL, M. P. Sept. 24, 1945, No. 24673. Convention date, Sept. 6, 1944. [Class 37] Relates to the measurement of a short time interval by charging or discharging a condenser during the interval and comparing the condenser charge with an E.M.F. derived from a potentiometer across the source charging the condenser, and consists in maintaining the load on the source constant. Condenser C, Fig. 1, is charged by closing switches 1, 2, and at the commencement of the interval switch 1 is opened to allow the condenser to discharge through resistance R until switch 2 is opened at the end of the interval when the charge on condenser C is determined by comparison with the potential of tapping S on potentiometer D ; a resistance R1, equal to resistance R, is connected across the source B by switch 3 which is closed simultaneously with the opening of switch 1 to maintain a constant load on the source B and thus avoid variation of its E.M.F. In a modification, the resistance R1 is absent and the resistance R is connected across the source B when switch 2 is opened, Fig. 2 (not shown) ; the condenser may be connected across switch I so as to charge over resistance R during the interval, Fig. 3 (not shown). Specification 460,737 is referred to.
Patent GB-779246-A (GB)
Title: Improvements in or relating to ring checking devices
IPC: G01B5/08
Filed: 1953-09-08
Abstract: 779,246. Adjustable ring gauges. GOULDER & SONS, Ltd., J., and HORNE, J. A. Oct. 25, 1954 [Sept. 8, 1953], No. 24767/53. Class 106 (2). An adjustable ring gauge comprises a bridge 1 constituted by two rigid parallel tubes 8 held in brackets 9, 10 at their ends and on which are supported slide members 2, 3 for the feeler discs 6, 7. The slide member 3 is clamped to the bridge 1 by means of a screw 9A and clamping tongue 10A and the slide 2 is held in position by a rod 12 passing through a laterally movable slide in the slide 2 and clamped thereon by a screw 17, the other end of the rod 12 being screw-threaded and engaging with an internally threaded knob 14 in the bracket 9. The slide members carry locating shoes 4, 5 adjustable in directions 4A, 5A the shoe 4 being clamped by a screw mounted in the slide 2 and the spaced pair of shoes 5 by screws engaging shoe-supporting rods and mounted in a transverse bar secured to the member 3. The shoes 4, 5 are adapted to engage the face of a ring R to be gauged and the adjustments so provided enable the feelers 6, 7 to be positioned to gauge diameter across any desired plane of the ring. The feeler 6 is rotatably mounted on a column 19 fixed to the member 2 so as to be adjustable for wear and the feeler 7 is mounted on the end of a lever arm 23 fixed to the end of a shaft rotatably mounted in a housing 25 and carrying at its upper end a second lever 27 which therefore follows movement of the lever 23 and feeler 7 and which bears against the moving contact 28 of a dial indicator 29 carried on the member 3. A spring 30 urges the feeler 7 towards the feeler 6. The gauge can be used for absolute or comparative measurement of internal or external diameters.
Patent GB-361848-A (GB)
Title: Radio receiving circuits
IPC: H03D1/16
Filed: 1930-08-21
Abstract: 361,848. Valve amplifying and detecting circuits. LISSEN, Ltd. and CALLENDAR, M. V., Lissenium Works, Worple Road, Isleworth, Middlesex. Aug. 21, 1930, No. 25032. [Class 40 (v).] Amplification and grid leak-condenser rectification are obtained from separate grids in the same electron stream of a thermionic valve, the rectifying grid having negligible control upon the anode current. The radio frequency input is applied to the outer grid of a five-electrode valve, Fig. 2, for rectification, the audio-frequency being transferred to the inner grid through a high-frequency choke 3 and condenser 27 for audio-frequency amplification. The output circuit is connected across anode and cathode. The centre grid acts as a screen-grid. In a modification, the grid leaks 2, 8 are replaced by an audio-frequency transformer 10, Fig. 3 ; the choke 3 may be replaced by a high resistance. Alternatively, as shown in Fig. 4, the input may be applied to the inner grid for highfrequency amplification and transferred to the outer grid for rectification through condenser 12, the output being taken across outer grid and cathode through a choke 15 and condenser 16. The output from the outer grid may be fed back through a condenser and leak to the inner grid circuit for reamplification, the output then being taken from the anode-cathode circuit through a condenser (Fig. 5 not shown). Specifications 153,681 and 159,984, [both in Class 40 (v), Wireless signalling &c.], are referred to.
Patent GB-1502608-A (GB)
Title: Spreading disc brakes
IPC: F16D65/14
Filed: 1975-06-02
Abstract: 1502608 Full-face disc brakes; cooling GIRLING Ltd 2 June 1975 [6 June 1974] 25117/74 Heading F2E A brake has rotatable friction discs 6 adapted to be brought into engagement with opposed radial surfaces 11, 12 provided by respective parts 1, 2 of a housing; balls or rollers are located in co-operating oppositely inclined recesses in adjacent faces of the pressure plates 7 and application of the brake is initiated by angular movement of the plates 7 in opposite directions through toggle links 13, 14 the plates 7 being moved apart and carried round by the discs 6 until one is arrested by engagement of a lug on the plate 7 with a stop in the housing 1, 2, the continued angular movement of the other pressure plate 6 providing a servo action; the friction discs 7 are carried by a shaft assembly 3, 26 rotatably mounted in bearings 4, 5 in the housing parts 1, 2 the assembly 3, 26 extending axially outwardly through apertures provided with seals 28 to project axially beyond the housing at each end by distances less than one half the length of the housing between its apertured ends. Preferably the shaft assembly projects by less than a quarter or less than a fifth of the length. As shown, the shaft assembly comprises a shaft 3 with (a) coupling member(s) 26 at one or each end. A gear pump for oil circulation comprises a gear wheel 19 mounted on the shaft 3 and a wheel 20, and the pump draws oil from the housing at an inlet 23 and circulates it through a pipe coil 24 over which cool air is circulated by a fan 25 rotating with the shaft 3. As shown there are two friction discs 6 on each side of the pressure plates 7 and between each pair of discs 6 is an intermediate disc 8 having a lug 10 to engage a drag-taking pin 9; in a modified arrangement for the circulation of cooling oil the pin 9 is hollow and cross-drilled to serve as an inlet to the pump, the oil then flowing upwardly through the brake and returning through an external radiator.
Patent GB-1244944-A (GB)
Title: Electrophotographic material
Inventor: HERCOCK ROBERT JAMES
IPC: G03G5/10
Filed: 1969-05-16
Abstract: 1,244,944. Electrophotographic element. ILFORD Ltd. 15 May, 1970 [16 May. 1969], No. 25150/69. Heading H1K. The disclosure of the Specification is very similar to that of Specification 1,244,942 but the claims relate to a transparent electrophotographic element comprising a transparent substrate which has been subbed or treated to enable it to receive a hydrophilic layer, an electroconductive layer and a layer of a transparent photoconductor wherein the electroconductive layer is a polymeric substance of formula where A is H, or an alkali metal, X is an aromatic nucleus, n is 1 to 3 and the group -(SO 3 A) n  is directly attached to the aromatic nucleus. In the specific embodiment the polymeric substance is a copolymer of styrene and maleic acid which has been esterified with sulphonated phenol. The copolymer may also be formed from itaconic anhydride with ethylene, methyl vinyl ether or methyl methacrylate.