baber/WOPTO huggingface dataset:
Patent GB-1275225-A (GB)
Title: Multiple hybrid circuit
Inventor: KURODA TAKAJI
IPC: H01P5/16
Filed: 1970-06-15
Abstract: 1275225 Power dividing network NIPPON ELECTRIC CO Ltd 15 June 1970 [30 June 1969] 28956/70 Heading H1W A hybrid circuit of unitary construction has at least four ports for transmitting electromagnetic waves between one port and at least three others, the ports being taken from pertinent junctions (21-26) formed by the intersection of at least three lines 16, 17, 18 crossed by at least two lines 19, 20 such that the lengths of the lines between adjacent junctions is an integral multiple of a quarter wavelength at the operating frequency. Denoting the characteristic admittance between pairs of junctions 21-22, 22-23, 24-25, 25-26 by A; 21-24 and 23-26 by B; and 22-25 by C, then for the input impedance from any of the terminals 27-32 to be reflectionless the following relations must be satisfied: When the parameters are chosen such that A = 1 and B = C = #3, then a signal applied to terminal 28 is divided equally between terminals 30-32 with no output at terminals 27 and 29, and conversely three equal input signals to terminals 30-32 produce an output at terminal 28 with amplitude three times the equal signal input. In a further example with A=B=C= 1, an input signal to terminal 28 is equally divided between terminals 27, 29, 30, 32 with no signal at 31. All the terminals can be made reflectionless either by matching impedances at the ports 27, 29, 30 and 32 and inserting matching circuits 52, 53 (Fig. 11, not shown) between the junctions 22, 25 and their respective terminals 28 and 31; or by inserting matching circuits 54-57 between junctions 21, 23, 24, 26 and their respective terminals. The three lines 16-18 may be increased to n lines to provide 2n ports with either two crossing lines or m crossing lines for broad band characteristics (respectively, Figs. 13, 15, not shown). In Fig. 6, the circuit is shown formed by conducting strips on one side of a dielectric 34 in Figs. 4, 5 (not shown), the circuit is formed respectively by coaxial lines and waveguides.
Patent GB-510154-A (GB)
Title: Improvements in and relating to alloys with enhanced mechanical properties at high temperatures
IPC: C22C19/00
Filed: 1937-10-23
Abstract: 510,154. Alloys ; annealing. HERAEUSVACUUMSCHMELZE AKT.-GES., and ROHN, W. Oct. 23, 1937, No. 29026. [Classes 72 and 82 (i)] Alloys for the manufacture of articles for use at temperatures of 600-900‹C. comprise 50- 70 per cent. of cobalt and nickel together, 6-25 per cent. of chromium, 0.5-20 per cent. of molybdenum or tungsten or both, and less than 1 per cent. of carbon, with or without up to 30 per cent. of iron, the proportion of cobalt being at least 20.5 per cent. ; or the minimum proportion of cobalt may be reduced to 10.5 per cent. if one or more of the following metals are present: up to 12 per cent. of titanium, up to 15 per cent. of tantalum, up to 15 per cent. of niobium, up to 15 per cent. of vanadium, and up to 8 per cent. of thorium. The articles, for example, valve heads, may be annealed at temperatures exceeding the temperature of use, for example, 1150-1300‹C., and valve stems may be hardened by cold working. French Specification 785,076 is referred to.
Patent GB-708368-A (GB)
Title: Improvements in or relating to shoes
IPC: A43B23/28
Filed: 1951-12-11
Abstract: 708,368. Boots &c. ATLAS - UNION SHOE CO., Ltd., and ATLAS, A. Dec. 11, 1952 [Dec. 11, 1951], No. 29038/51. Class 17(2) A shoe, wherein the heel is covered by the upper, has the rear part of the upper 'formed from a blank, Fig. 4, comprising rear side portions 10 connected by a top marginal zone 9 and having a back 6 which is formed by two symmetrical cuts from the zone 9 which would meet at the top of the centre of the heel. The edges of the cuts are joined by stitching 11 to form darts 12 which draw the zone 9 inwardly and downwardly to grip the wearer's heel and tailors the material between the darts to the foot. A plane surface 7 and plane trapezoidal surface 8 are thus formed which overlie corresponding surfaces of an internal heel 1 with the darts 12 at the edges thereof.
Patent GB-298380-A (GB)
Title: Improvements in fire extinguishing apparatus
IPC: A62C5/00
Filed: 1927-11-01
Abstract: 298,380. Hamilton, A. Nov. 1, 1927. Fire-extinguishing by solutions; chemicals.-In a fire-extinguishing apparatus comprising two or more cylinders a, b each charged with solid chemicals for impregnating a water stream, and common water inlet and discharge pipes c, h provided respectively with cocks f, g and k, l whereby any cylinder can be cut off for recharging while theother or others is or are still working, each cylinder has a cover m held in place by clamps p and pinch screws p<1>, and contains a double perforated inner cylinder within which is placed. a porous sack containing the chemical charge. A suitable charge comprises layers, in the order named, of sand, ammonium sulphate, sand, oxalic acid, sand, sodium carbonate, and sand. Specification 8663/99 is referred to.
Patent GB-704918-A (GB)
Title: Improvements in or relating to motion-picture projectors
IPC: G03B35/00
Filed: 1951-12-12
Abstract: 704,918. Kinematograph projectors. PAILLARD SOC. ANON. Dec. 12, 1951 [Feb. 10, 1951], No. 29060/51. Class 97(1) In stereoscopic projection, particularly, the film moves horizontally past two projection apertures separated vertically by half the film width and provided with separate projection lenses and projection light beams, which latter are intercepted simultaneously 'by a shutter having two blades and rotated through one and a half revolutions for each film feed cycle. One form is shown in plan in Fig. 1 and in vertical sections at II-II and III-III in Figs. 2 and 3. The mechanism is carried by plates 3 and 4, spaced by pillars 6, the plate 3 forming the top of a housing 5. Lamps, shutter and claw feed are contained in a further housing 46. The motor M drives, through a belt 8, a ventilating fan 9 and a spindle 10 carrying the cam 12 of a claw feed mechanism of the kind described in Specification 674,205. The shaft 10 drives a horizontal shaft 17 through gears 15, 16 and this drives through gears 16, 18, a shaft 19 carrying a shutter 20. The shaft 17 also drives through gears 33, 34, 35, 40, 43, 44 a number of shafts on some of which are carried film sprockets 32, 41 and pulleys 29, 37, driven by ratchets 31, 39, connected by belts to pulleys 24, 26 connected to the spool spindles through friction drives. Each friction drive consists of a number of discs, alternate discs having driving connection respectively with a squared portion of the spindle and with pins upstanding from the driving pulley. The weight of the spooled film provides the pressure between the friction discs. Separate projection lamps 51 have reflectors 53 and condensers 54. The objectives 55, 56 are carried in eccentric sleeves rotatable by knobs 70 to provide adjustment of the objective axes, one horizontally and one vertically. The objectives are simultaneously axially adjustable by a device 73. Both objectives are mounted on a plate 58 with an upstanding vertical wall adjacent the front wall 45 of the housing 46. The vertical wall contains the projection apertures 1, 2, Fig. 3, against which the film is retained by apertured pressure plates, not shown, carried on a spring blade secured to the wall 45. The plate 58 can be slid forward, under control of a spring detent, into a film threading position. In a modification a single central light source is used with inclined mirrors or prisms to reflect the light along the projection axes. A transverse shaft carries shutters between the lamp and the reflectors. Specification 704,919 also is referred to.
Patent GB-248107-A (GB)
Title: Improvements in and relating to tyre presses
IPC: B29D30/02
Filed: 1924-12-05
Abstract: 248,107. Dunlop Rubber Co., Ltd., and Mortier, G. A. Dec. 5, 1924. Presses, mechanical.-A press for forcing tyres with metal base bands on to, and off, the felloes of vehicle wheels comprises a central vertical screw 11 supported in horizontal base and top plates 4, 5 respectively, and a movable pLate 7 adapted to exert pressure upon the tyre band so as to force it over the wheel rim. The base plate 4 is connected to the plate 5 by vertical pillars 6 which form guides for the plate 7, rocking on the pillars being prevented by bosses 8. The plate 7 is moved on the screw 11 by a handwheel 9<b> or by power through a spindle 9<a> and worm 10 which meshes with the screw 11. the screw 11 being prevented from turning by a peg 12 slidable in a bracket 13 on the plate 5 and adapted to engage a hole 12<a> in the screw 11. To place the wheel and tyre in position, the screw 11 is withdrawn from the base 4.
Patent GB-1111469-A (GB)
Title: Improvements relating to gas-filled envelopes for spark gaps and the like
IPC: H01J5/14
Filed: 1966-06-29
Abstract: 1,111,469. Discharge apparatus. IMPULSPHYSIK G.m.b.H. 29 June, 1966 (6 July, 1965], No.29235/66. Heading H1D. Apparatus for enabling the envelope of a discharge device e.g. a spark gap or flash lamp, to be filled with a gas or vapour comprises a filling tube 3 making a gas-tight joint with envelope 1 and having a bore 8 communicating at one end with the interior of the envelope and having openable closure means 10 at the other end operated by a device 18 which extends out through a fitting 14 which is secured to said other end of filling tube 3 and which defines, with filling tube 3, an enclosure 15 having valve controlled passage means, such as 22, 23, connected to apparatus for causing gas to flow into and out of the enclosure. As shown, the filling tube 3 may comprise an electrode of a spark discharge device, the electrode being demountably secured to an extension 5 of the envelope. When the envelope becomes blackened by use, instead of discarding the device, the blackening may be removed by dismantling and withdrawing the electrodes whereby access to clean the interior of the envelope may be obtained through the resulting apertures. The device may then be refilled with gas by replacing the electrodes 2, 3, securing the fitting 14 over the filling tube 3 and using screwdriver device 18 to unscrew plug 10 which closed the filling tube 3, thus forming a passage between the interior of the envelope and enclosure 15. A vacuum pump attached to one of the passageways 22, 23 evacuates the envelope through its respective valve which is subsequently closed. The other valve is then opened to allow gas under pressure from a suitable supply to enter the envelope. The envelope is sealed by reinserting the plug 10 into the filling tube 3 and screwing it home tight, and the fitting 14 and its accessories are removed and the electrical supply connections restored. Instead of being formed by an electrode the filling tube may be quite separate, in which case the fitting may remain in position and, if the filling tube is of considerable length, which may include a portion of flexible hose, the fitting may be remotely situated from the discharge device.
Patent GB-1145535-A (GB)
Title: Hammer mechanisms for printers
IPC: B41J9/10
Filed: 1966-06-29
Abstract: 1,145,535. Selective printing. ANELEX CORP. 29 June, 1966 [22 Oct., 1965], No. 29287/66. Heading B6F. A selective printer having a rotary type carrier (not shown) is provided with a hammer impression mechanism comprising a number of exchangeable hammer modules each comprising a plurality of hammers 2, Fig. 1, attached to alternately staggered hammer arms 4, which are mounted in dove-tailed grooves 6 of module end frames 8, the hammers 2, in their cocked positions, having their pre-stressed, resilient arms 4 held by permanent magnets 10, 12, whose fields are collapsed by selective energization of coils 14 to release the resilient arms 4 for impression of the hammers 2 against the rotary type carrier. Released hammers 2 are reset by bails 16 attached at their ends to bars 22 fast with further bars 20 which are reciprocated in the vertical plane by respective one-revolution clutch-driven cams 18. The permanent magnets 10 of the ceramic type and having fields of 2000 Gauss, are sandwiched between high permeability polepieces 12 and both magnets 10 and polepieces 12 are slotted to provide separate polepieces 40 (Fig. 3) for individual hammers, the polepieces supporting the coils 14. In a modification of the hammer module the hammer arms 4, Fig. 6, are bent at right-angles and provided with high permeability armatures 62 coacting with the permanent magnets 10, whose respective polepieces 12 support field collapsing coils 58 and resetting coils 60, the latter of which may be energized selectively or collectively. In a further modification the released hammer arms 4 (Fig. 5) may be reset by cams 54. In a final embodiment the released hammer arms 4 (Fig. 4) which are mounted in a block 44 are reset by arms 45 provided with cam followers 48 which coact with a cam 49 driven cyclically through 90 degrees. Rebound of hammers is prevented by leafsprings 39, Fig. 1, which in a modification may be provided with rubber or plastics pads 74, 76 (Figs. 9, 10).
Patent GB-1198477-A (GB)
Title: Improvements in or relating to a Multiple-use Accessory Notably for Handling Liquids
Inventor: STOKMAN HANS
IPC: B63B17/00
Filed: 1967-06-26
Abstract: 1,198,477. Scoops. H. STOKMAN. 26 June, 1967 [28 June, 1966; 8 Feb., 1967], No. 29295/67. Heading A1B. [Also in Divisions B1 and B8] A scoop 20 is provided with a tubular handle 11 and is shaped for use as a funnel, a plug 12 being provided to close the end of the tubular handle. As shown a vessel 10 is provided with a peripheral bead 13 to act as a guide for cutting the vessel into two parts 20, 30, the part 20 forming the scoop. The scoop 20 is formed with a scale 25 and a pouring lip 26. The plug 12 may be removed and a filter inserted in the neck 11 so that a funnel is formed. A reed may be inserted in the portion 11 to form a horn. The portion 11 may be closed at both ends so that the scoop will float.
Patent GB-892409-A (GB)
Title: Digital comparator
IPC: G06F7/02
Filed: 1960-08-24
Abstract: 892,409. Electric calculating apparatus. HAGAN CHEMICALS & CONTROLS Inc. Aug. 24, 1960 [Sept. 23, 1959], No. 29303/60. Class 106 (1). A digital comparator providing an alarm signal if an input leaves a preset range comprises for each decade ten relays with contacts C-0 to C-9 (normally closed) in series and coils 24 (two for each relay), the input digit being presented as an earthing of one of the terminals T-0 to T-9, and the digits of the upper and lower limits by connections between 28 and 31 on one of the banks 12 and 13 respectively. The comparison is effected in two steps; first a positive potential is applied to 42, 43 and terminal 26 of the upper bank 12, and switches 33 of bank 12 closed so that the upper limit digit relay is energized to open the corresponding contacts C. Current will flow in a relay coil 38 if the upper limit digit does not exceed the input digit, and in relay coil 39 if it is not less than the input digit, so that if the digits are equal both relays will be energized to close 55, 56 and 58, 59, and this makes the giving of an alarm at 63 dependant on the next lower denomination, the point corresponding to 60 of which is connected to line 71. If the input digit exceeds the upper limit digit 55, 56 only are closed, and the alarm circuit is directly earthed. After testing of the upper limit a similar test (by energizing 45, 46 and 26 of bank 13) on the lower limit is effected, in which the connections of second coils 41, 42 on the relays are reversed.
Patent GB-484089-A (GB)
Title: Improvements in the production of fibrous cellulose from fibre-bearing plant stalks
IPC: D01C1/02
Filed: 1936-10-28
Abstract: In producing fibrous cellulose from flax straw and other bast plant stalks such as hemp, jute and ramie the scutched, unretted unhackled fibrous material is digested under pressure with a caustic soda solution of more than six per cent, air and oxidizing agents being excluded and the digestion taking place in the absence of acid and saponaceous reagents.  The flax is scutched to remove about 70-75 per cent of the non-fibrous material and the crude fibre is then digested with boiling water and then under pressure and in the absence of air, with caustic soda of strength in excess of 6 per cent, e.g. 10 per cent caustic soda at from 320-360 DEG  F.  Treatment with a 3-5 per cent sodium carbonate solution may precede the digestion with caustic soda.  Wetting agents may be used as a preliminary to the digestion processes and with one or more washes following digestion so as to remove foreign mineral impurities, particularly iron.
Patent GB-1133128-A (GB)
Title: Improvements in and relating to solid tyres
IPC: B60C7/22
Filed: 1966-06-30
Abstract: 1,133,128. Solid tyres. CONTINENTAL GUMMI-WERKE A.G. 30 June, 1966 [10 July, 1965], No. 29387/66. Heading B7C. [Also in Division F2] A solid tyre mounted with interference fit on a vehicle wheel 6 comprises a soft rubber layer 2 which interconnects layers 1 and 3 reinforced with randomly arranged wires, fibres or other filamentary material between 4 and 40 mm. long. The layer 2 may have recesses 4 to increase resiliency.
Patent GB-320234-A (GB)
Title: Improvements in or relating to needle-motions for inserting the weft in axminster and like looms
IPC: D03D39/02
Filed: 1928-10-12
Abstract: 320,234. Wood, A. E., (Crompton. & Knowles Loom Works). Oct. 12, 1928. Needle looms; pile-fabric looms.-In an Axminster loom &c. wherein the weft-inserting needle is operated by rope and other gearing from a crank arm 33 on a shaft 34, this shaft is driven by bevel gearing from a shaft 66 having a star wheel 60 operated by rolls or pin members arranged in three pairs A.B.C. on a plate 50 keyed to a loom shaft 38. The rolls act like the pins of an ordinary Geneva motion and thus accentuate the dwell given to the needle when the crank is in its extreme positions. The motion necessary for the insertion of the needle and its companion roll is caused by the first roll of a pair, whilst the motion necessary for the withdrawal of the needle is caused separately by the second roll. The gearing is so arranged that the first roll commences to enter a groove 62 in the star wheel when the crank is in one extreme position, whilst the other roll of the pair acts when the crank is in the other extreme position. The mounting of the rolls is described. Locking devices 75, 70 are provided. The rolls may be replaced by pins. The rolls in each pair are equally spaced, but the pairs of rolls may be unequally spaced from one another to cause dwells of different lengths between the usual three consecutive double picks necessary for each weft forming cycle. The dwell of greatest duration occurs between and corresponds to the space F, Fig. 2, between the pairs A, C of rolls and is to allow time for the weft tube frame to be moved towards the fabric before a pick is inserted. The dwell before the next pick, during which time combing up, finding the tuft yarns by the reed and drawing off occurs, is shorter, and the dwell before the last pick is shortest of all as no tuft forming operations occur. The needle N is secured to a carriage operated by a cable 13 attached to an oscillating drum 16 oscillated by gearing 28, 29 and an adjustable connector 31 from the crank arm 33. The cable passes round a tension pulley 17 carried by a lever 20 operated by a weight and having ratchet teeth 23 co-operating with a pawl 25. The selvedge shuttle is operated from a shaft 35.
Patent GB-881114-A (GB)
Title: Improvements in or relating to air suspension systems for vehicles
Inventor: BALLARD DONALD HENRY
IPC: B60G17/005
Filed: 1959-08-28
Abstract: 881,114. Maintainingvehicle height constant. CLAYTON DEWANDRE CO. Ltd. Aug. 19, 1960 [Aug. 28, 1959], No. 29453/59. Class 108(2), A levelling valve for the control of: an air spring 1 in a vehicle suspension has a probe 13 operated by fluid under pressure and responsive to increase or decrease of load on the vehicle to cause air to flow into or out of the. spring, the probe being moved to an inoperative position while the vehicle is travelling. When the vehicle is stationary, high pressure air from an inlet 10 flows through a passage 19, an annular passage 17 and a port 15 into a cylinder 11 containing a piston 12 carried by the probe 13 so that the latter is heldi in contact with a plate 6 carried by a cup 4 forming part of the spring. An increase in vehicle load causes the probe and cylinder to move upwardly in unison to lift a valve 26 from itsseat and allow air to flow into the spring through a port 24 until the vehicle is restored to its original height. A decrease in load separates the probe and. plate causing the cylinder 11 to be moveddownwardly by a spring 21 sothat air may leave the spring through anexhaust volvo 30 between the port 24 and a passage 37 leading, to the atmosphere through an annular passage 37 and a pasage 40. A solenoid-operated valve 47 or a valve actuated mechanically, for example, from the handbrake admits atmospheric air to the cylinder 11 to collapse the probe when the vehicle is travelling. An auxiliary exhaust valve 36 is closed by a spring-loaded piston 33 to prevent air leaving the spring The plate 6 may be formed as part of. a pressure or spring-operated piston to occupy a number of positions for varying the vehicle ground clearance whilethe probe 13 may have differential areas. The valve mechanism may be separate from the spring.
Patent GB-839764-A (GB)
Title: Improvements in ring-roll presses
Inventor: GREGORY HARRY REX
IPC: B30B11/20
Filed: 1955-10-17
Abstract: 839,764. Roller-ring briquetting presses. COAL INDUSTRY (PATENTS) Ltd. Oct. 15, 1956 [Oct. 17, 1955], No. 29507/55. Class 87(2). Coal or coal products are briquetted by feeding the material into a gap formed between a rotating ring and a rotating roller mounted eccentrically within the ring. The peripheral speeds of the ring and roll being between 1À03 : 1 and 1À40 : 1. The ratio is preferably between 1À07 : 1 and 1À15 : 1. One or more rollers may be located within one or more rings. Both the roller and the ring may be positively driven or one may drive the other by means of the friction of the material being briquetted, the required difference in speed being obtained by braking the frictionally driven member. The moulding surfaces of the roller and ring may be plain or configured. Two rollers 10, 11, mounted on a positively driven shaft 13, are located within a ring 23, mounted on rollers 24, 28, and form with the ring 23 two moulding spaces for the material M under compression. The roller 24 is movable, by hydraulic rams 20 in cylinder 21, acting on its shaft 22 to vary the compression force between the rollers 10, 11 and the ring 23. The material is fed to the gap by a screw feeder 51, Fig. 4 (not shown), and after compression broken into briquettes by a " plough " 27. A brake 25 controls the speed of the ring 23. A system by which both the rollers 10, 11, and the ring 23, Fig. 3 (not shown), are positively driven by variable speed hydraulic motors is described. Specification 807,433 is referred to.