baber/WOPTO huggingface dataset:
Patent GB-1373991-A (GB)
Title: Fluid treating filter
IPC: B01D46/10
Filed: 1972-01-10
Abstract: 1373991 Laminated filter and its manufacture AMERICAN AIR FILTER CO Inc 10 Jan 1972 [11 Jan 1971] 1115/72 Heading B5N [Also in Divisions B1 and B8] An air filter (Fig. 2, not shown) comprises two layers of fibreglass sandwiching a stiffening layer of expanded metal, wire screen or perforate metal (bottle top scraps) or plastics, enclosed in a polyethylene bag 25 with panels 26 defined by perforations enabling the panels to be torn away before the filter is used, the peripheral part of the bag remaining round the filter. In manufacture continuous webs of fibreglass, 1, 2 are fed by endless conveyers on to upper and lower sides of a continuous web of expanded metal 3. Web 3 passes between rollers 9, 11, of which roller 11  rotates faster and lifts hot adhesive from pan 12 on to the web, whereby both sides of the web are coated. The three webs are pressed together by rollers 13, pass through a curing chamber 16 where the adhesive sets, and the resulting laminate is cut into pads and packaged in polyethylene bags at 19. The adhesive may be tricresyl phosphate.
Patent GB-704461-A (GB)
Title: Improvements in or relating to negative electrodes for alkaline storage batteries
IPC: H01M4/66
Filed: 1951-01-16
Abstract: 704,461. Batteries. SOC. DES ACCUMULATEURS FIXES ET DE TRACTION. Jan. 16,1951 [Dec. 14, 1950], No. 1199/51. Class 53 A negative plate for an alkaline accumulator is made by compressing a mixture of finely divided copper and iron or a reducible iron compound such as ferric oxide. The mixture may be pressed about a wire screen. Specifications 322/03, [Class 53], and 608,896 are referred to.
Patent GB-1002093-A (GB)
Title: Improvements in or relating to weft change motions for looms having gripper shuttles
Inventor: TILLE MANFRED
IPC: D03D47/00
Filed: 1964-01-10
Abstract: 1,002,093. Weft pattern mechanism for shuttleless looms. WEBSTUHLBAU GROSSENHAIN VEB. Jan. 10,1964, No. 1226/64. Heading D1E. Weft pattern mechanism for shuttleless looms consists of a bank of weft guide eyes 3 (of which only one is shown) each carried by a slider 4 which can be projected by a draw knife 11 when pattern mechanism 10 allows.a hook 8 to engage the knife. The arms 2 which carry the eyes 3 are disposed at different heights and are bent so that, in the position of rest, the eyes lie one above another in the same vertical plane. A curved slot 13 riding on a fixed pin 12 depresses the selected eye as the draw knife 11 operates it, the slots 13 being differently shaped so as to swing all the eyes to the same delivery point.
Patent GB-642450-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F27/245
Filed: 1948-01-15
Abstract: 642,450. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 15, 1948, No. 1318. Convention date, Jan. 18, 1947. [Class 38 (ii)] A 3-phase magnetic core comprises 'three U-shaped members 1, 2, 3 made of U-shaped bundles of flatwise bent laminations, the ends of which are so shaped that they form a Y-shaped yoke with butt and lap joint at each end of the - core, the end of each lamination being cut away at one side so as to accommodate the projecting non-cut-away portion of an end of a corresponding lamination, the cutting away being done at alternate sides of successive laminations. The members 1, 2, 3 are built up in pairs by providing a flexible holding band having its inside perimeter equal to the sum of the length of the outer laminations of any two of the members 1, 2, 3 and then inserting into this holding band pairs of laminations with their shaped ends fitting together as shown in Fig. 2 wherein the projecting non-cut-away portion of end inserted in the cut-away side of an adjacent end of a lamination in the same layer. In order to 'provide lapped contiguous joints between adjacent layers, the laminations are reversed at each successive layer. After the annealing operation, the holding band is removed and the two bundles are then slightly loosed and turned so that their planes make an angle of 120 degrees with each other. The ends of the third member can now be accommodated in the space left between the ends of these two members. In a modification, Fig. 4 (not shown), the yoke at each end of the core is T-shaped with two bundles in one plane and the third one disposed at right angle to these two bundles. In other modifications, Figs. 7, 9, 10 (not shown) the lamination ends of each bundle are alternately long and short and are joined by magnetic inserts shaped to be accommodated in the spaces between the ends of the laminations in each layer. In further modifications, Figs. 11, 12 (not shown), the bundles of laminations are so disposed relative to each that a T-shaped yoke is formed at each end of the core with suitably shaped magnetic inserts fitted as shown. In each of Figs. 7, 9, 11 each set of alternate magnetic inserts has a different shape from that of the inserts of the remaining set.
Patent GB-268473-A (GB)
Title: Improvements relating to hinge brackets for school desks and seats
IPC: A47B41/02
Filed: 1926-01-19
Abstract: 268,473. Bennet, G. Jan. 19, 1926. Disc and like plate hinges; hinges readily separable about hinge pin.-For pivotally mounting the tops and seats of school desks the pivot pin projecting from a disc 6 and engaging a socket 2 of a bracket arm 1 is formed with a dove tail slot 5 that is engaged bv a lug 4 projecting from the hinge arm 3. The guard plate 7 on the arm 3 embraces the eye 2, an extension 7<a> being bent into the full-line position, Fig. 7, when the parts are assembled to prevent endwise displacement.
Patent GB-923639-A (GB)
Title: Improvements in or relating to electric carrier communication systems
Inventor: BARRETT ROBERT
IPC: H04B3/42
Filed: 1960-01-15
Abstract: 923,639. Repeaters. GENERAL ELECTRIC CO. Ltd. Jan. 11, 1961 [Jan. 15, 1960], No. 1583/60. Class 40 (4). At a repeater station in a two-wire carrier transmission system, an inductively loaded audio-frequency path by-passes the carrier signal amplifier. The repeaters of the system are fed in series with D.C. power over a twowire transmission line between the repeaters, the amplifiers drawing their current from across a capacitor inserted in the low-frequency path. In Fig. 1, high-pass filters (cut off 30 kc/s.) 6 and 7 are inserted between the input 1, 2 and output 3, 4 terminals and the carrier signal amplifier 5 of the repeater, respectively. The low-frequency (cut-off 2.3 kc/s.) path comprising loading coil 14 and capacitor 15 is connected as shown, D.C. power for amplifier 5 being taken from across capacitor 15. At a terminal station (Fig. 2), D.C. is connected to terminals 33, 17; carrier signals are applied to terminals 16, 17 and audio-frequency speech is fed into terminals 31, 32 which are transformer coupled (28) to the line outgoing from terminals 18, 19. Facilities for fault detection are available by connecting suitable testing equipment to terminal 34 and thus via two-way switch 25 to the line connected to terminals 18, 19.
Patent GB-1451899-A (GB)
Title: Pressure transducers
IPC: G01L9/00
Filed: 1973-01-12
Abstract: 1451899 Electrical pressure transducer SIMMS GROUP RESEARCH & DEVELOPMENT Ltd 5 Dec 1973 [12 Jan 1973] 1648/73 Heading G1N A pressure transducer provides an electrical signal representative of the pressure in a conduit communicating with a Bourdon tube 18 anchored at one end in a member 19, the other end moving in response to pressure changes to produce rotary displacement of a rotor member 17 of magnetizable material by means of link 21 and extension 22. The member is positioned adjacent an end-face of a cylindrical pole 11 of a magnetic core 10, is pivotally mounted about the axis of a bore 12 of the pole and has a width at its extremities equal to the arcuate length of arcuate polepieces 14. These polepieces 14 are equiangularly spaced about the axis. An energizing winding 15 surrounds the pole and output windings 16 are provided about the polepieces 14 to provide a signal which represents the angular setting of the rotor relative to the pole axis. The output windings are inter-connected so that in use the voltages induced in an opposed pair of windings are added and are subtracted from the sum of the voltages induced in the other opposed pair of windings. As a result the output voltage will be at a minimum when the member 17 lies midway between a pair of adjacent polepieces 14.
Patent GB-287668-A (GB)
Title: Improvements in and relating to road and like signs
Filed: 1927-01-20
Abstract: 287,668. Mason, S. G. H. Jan. 20, 1927. Signs.-A triangular box-form warning sign for roads, motor vehicles, &c. has an outer opaque triangular sign surrounding an inner transparent sign, the centre of which is formed as an opaque triangle or triangular aperture. The sign casing 7 is supported on a bracket 4 and is formed with an outer red opaque triangle 10 surrounding an inner ruby glass triangle 11 and a central opaque triangle 13, which may be replaced by a triangular aperture or recess. The casing is fitted with a lamp and reflector and the parts are so coloured that a red triangle with a dark centre is seen, the central triangle forming the dark centre when the sign is illuminated and the ruby glass and central triangle together forming the dark centre during the day time. Specification 237,319 is referred to.
Patent GB-101574-A (GB)
Title: Improvements in and pertaining to Dismountable Rims for Vehicle Wheels.
Inventor: LAW JOHN ARTHUR
IPC: B60B23/02
Filed: 1916-02-05
Abstract: 101,574. Law, J. A., (O'Gorman, J. S.). Feb. 5, 1916. Tyre attachments to rims; detachable - rim attachments to wheels. -The tyre-carrying rim consists of a continuous ring 3 and a split ring 2 having an interengaging lip 9 and groove 8 respectively, the rings 2, 3 and the fixed rim seating 4 being formed of metal of uniform thickness so as to admit of being shaped cold without the necessity of machine surfacing. Relative circumferential movement of the rings 2, 3 mav be prevented by the provision of one or more interengaging studs and holes on the parts. The rim is held against the flange 7 by slotted clamps 16, which are seated in channelled plates 20 carried by the transverse bolts 18.
Patent GB-634429-A (GB)
Title: Process for the manufacture of green tetrakisazo dyestuffs
IPC: C09B35/50
Filed: 1948-01-21
Abstract: Tetrakisazo dyestuffs of the type A \sM B --> C --> D --> E are obtained by: (1) coupling a tetrazotized mono-(m- or p-aminobenzoyl)-p-phenylenediamine compound (B) with one mole of an o-hydroxy-carboxylic acid of the benzene series (A) coupling in the p-position to the hydroxyl group and one mole of a 1-amino-2-alkoxy-naphthalene (C) coupling in the p-position to the amino group; (2) diazotizing the resulting diazo-dyestuff and coupling it with a 1-(m- or p-aminobenzoyl-amino)-8-hydroxynaphthalene sulphonic acid coupling in the o-position to the hydroxyl group or other p - aminobenzoyl - amino - hydroxynaphthalene sulphonic acid also coupling in the o-position to the hydroxyl group and whose acylamino and hydroxyl groups are situated at the naphthalene ring positions possible for the formation of binuclear naphthoquinones (D); (3) diazotizing the resulting triazo dyestuff and coupling it with a 1 : 3-dihydroxy, 1 : 3-diamino or 1 : 3-hydroxyamino benzene compound capable of coupling twice (E), the components of the reactions being so chosen that the tetrakisazo dyestuff contains at least 3 and not more than 4 sulphonic acid groups.  Suitable components are: (A) salicylic acid, o- and m-cresotic acid and 3-chloro-salicylic acid, these coupling with the diazo group derived from the aminobenzoyl portion of the diamine; (B) 4-(31- or 41-aminobenzoylamino)-aniline, 5-(31 or 41-aminobenzoylamino) - 2 - aminobenzene - 1 -carboxylic or sulphonic acid, 5-(31-amino-41-methyl- or chloro - benzoylamino) - 2 - aminobenzene - 1 - carboxylic or sulphonic acid; (C) 2-methoxy- or -ethoxy-1-amino-naphthalene and their 6-sulphonic acids and 2-(carboxymethoxy)-1-amino-naphthalene-6-sulphonic acid; (D) 1-(31- or 41-aminobenzoylamino) - 8 - hydroxy - naphthalene - 4-sulphonic acid or -3 : 6- or -4 : 6-disulphonic acid, 1 - (31 - or 41 - aminobenzoylamino) - 5 - hydroxynaphthalene - 7 - sulphonic acid, 1-(31-or 41-aminobenzoylamino)-7-hydroxynaphthalene-3- or -4-sulphonic acid, 2-(31- or 41aminobenzoylamino) - 6 - hydroxynaphthalene - 8 - sulphonic acid or -3 : 6-disulphonic acid; (E) resorcinol, m-phenylene diamine, m-aminophenol, 2 : 4-diamino-toluene.  The tetrakisazo dyestuffs are suitable for dyeing natural and regenerated cellulose, the wash-fastness being improved by after-treatment with formaldehyde or diazotized p-nitraniline. Examples are given of the preparation of typical dyestuffs (the third coupling being effected in the presence of pyridine in each case), and the dyeing of cotton cloth with one of the products.
Patent GB-1416612-A (GB)
Title: Catalyst and the use of this catalyst for reducing nitrocompounds
IPC: B01J21/04
Filed: 1973-01-12
Abstract: 1416612 Aniline BAYER AG 12 Jan 1973 [23 March 1972 9 Sept 1972] 1799/73 Heading C2C [Also in Division B1] Nitro-compounds are reduced by reaction with hydrogen at elevated temperature in the presence of a catalyst comprising 0À1 to 10% wt. palladium metal and 0À1 to 5% wt. of vanadium metal or a vanadium compound supported on an alumina at least 20% of which has been converted into lithium-aluminium-spinel. In particular, nitrobenzene is reduced to aniline at 100-350 C., 1 to 100 bars pressure, with a ratio of hydrogen to nitrobenzene greater than stoichiometric, e.g. 20 : 1.
Patent GB-1514882-A (GB)
Title: Apparatus for playing a game
IPC: A63B43/00
Filed: 1977-01-18
Abstract: 1514882 Throwing games DRK Ltd 18  Jan 1977 [16 Jan 1976] 01799/76 Heading A6H A ball comprises thermoplastic shell formed on its outer surface with at least two non-parallel annular grooves, each groove accommodating a band of hooked fabric, which retains the ball on a target of brushed nylon for example.
Patent GB-1269338-A (GB)
Title: Improved cladding panel for buildings
Inventor: FISCHBEIN WILLIAM JAMES
IPC: E04C2/26
Filed: 1969-01-13
Abstract: 1,269,338. Laminates. W. J. FISCHBEIN. 10 April, 1970 [13 Jan., 1969], No. 1884/69. Heading B5N. [Also in Divisions E1-E2] A building panel comprises an outer shell 1 of glass fibre reinforced plastics and, positioned within the shell, fibre-glass reinforced gypsum<SP>3</SP> secured to the inner surface of the shell. In a preferred embodiment, loose glass fibres 2 are applied to the shell prior to the application of the fibre-glass reinforced gypsum.
Patent GB-1477604-A (GB)
Title: Laser wavelength stabilization
IPC: H01S3/137
Filed: 1975-01-17
Abstract: 1477604 Lasers JERSEY NUCLEAR-AVCO ISOTOPES Inc 17 Jan 1975 [17 Jan 1974] 2125/75 Heading H1C A dye laser is frequency stabilized by detecting any change in the spacing of the interference ring pattern 68, Fig. 3, of a temperature controlled fabry-perot etalon filter 56, Fig., in an output monitoring path, and using the detected change to positionally adjust a further fabryperot etalon 38 tiltably mounted in the laser resonant cavity. Observation of the ring pattern is effected by a telescope 60 which centrally focusses between differentially connected segments 62, 64 of a two segment radiation detector a restricted spot 66 centred on a single line of the ring pattern. The differential output of the segments is amplified in an amplifier 74 and is used to drive a piezo electric element 42 positionally controlling the tiltable etalon 38. The laser resonator is formed by a plane mirror 48, a dichroic mirror 36 and a mirrored meniscus lens 28, pumping radiation for the dye cell 12 being applied through the dichroic mirror from an argon laser 50. Coarse frequency adjustment is effected by a prism 46. The dye cell is shown in detail in Fig. 2 and comprises antireflectioncoated windows 14, 16 defining a duct through which the dye is continuously passed, the windows being sealed by O-rings 22 to compression plates 18 and 20. In place of the spring biassed piezo-electric element 42 shown, use may be made of the structure of Fig. 4 in which a piezo electric cylinder 98 determines the spacing of etalon mirrors 92, 94. The fabryperot etalon filter 56 of Fig. 1 may consist of windows spaced by a titanium silicate structure, temperature control being effected by coupling a control jacket 58 to a temperature control bath 61.
Patent GB-555423-A (GB)
Title: Improvements relating to potato diggers
IPC: A01D19/10
Filed: 1942-02-18
Abstract: 555,423. Potato diggers. SMITH, S. N., and LA CKSTONE & CO., Ltd. Feb. 18,1942, No. 2169. Class 6 (iii)] A potato-digging machinewith side delivery is provided with a screen 4 resiliently secured to the frame 5. Springs attached by bolts to the frame may have coils 8 received in pockets in the screen.
Patent GB-1215625-A (GB)
Title: Improvements in or relating to devices for governing engines
IPC: F01L13/00
Filed: 1968-01-16
Abstract: 1,215,625. 625. Speed governors. GOTAVERKEN A.B. Jan. 16, 1968 [March 30, 1967], No. 2327/68. Heading G3B. A device for governing an engine comprises a centrifugal governor 2 having a loading diaphragm 9, controlling an injection pump 1 so that a high pressure acting on the diaphragm 9 corresponds to a low speed, and a lower pressure corresponds to a higher speed, a cam actuator 5 on a regulator valve 6, disposed, e.g. on the bridge of a ship, to control flow from a source 3 to the diaphragm 9, a further valve 15, disposed, e.g. in the engine room, and also controlling flow from the source 3 to the diaphragm 9, and a valve 10, Fig. 2, having a diaphragm 11 to allow only the flow signal of highest pressure to pass to the diaphragm 9, so that the valve 15 can be set to limit the speed of the engine.
Patent GB-454319-A (GB)
Title: Television receiver
IPC: H04B1/26
Filed: 1935-01-24
Abstract: 454,319. Transformers. RADIOAKT.- GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Jan. 24, 1935, No. 2348. Convention date, Jan. 25, 1934. [Class 38 (ii)] [See also Group XL] In a superheterodyne television receiver the frequency of the intermediate frequency amplifier is made between two and four times the maximum image current frequency. The intervalve coupling in the intermediate frequency amplifier may be a transformer with the primary tuned below and the-secondary above the carrier frequency by the image frequency used. Preferably the transformer construction shown in the Figure is employed with the primary divided and the feed connections taken from the centre as this arrangement with a slotted screen tends to obviate resonance at more than one frequency.
Patent GB-192902-A (GB)
Title: Improvements in driving apparatus for ring spinning, doubling and twisting machinery
IPC: D01H1/241
Filed: 1922-01-26
Abstract: 192,902. Whitehead, T. Jan. 26, 1922. Spindle-driving apparatus; spindle apparatus; guards and protectors for machinery, arrangement and dispositiun of.-In ring spinning, doubling, and twisting frames, the spindles and ring carriers are driven at different speeds by endless bands engaging both sides of the wharles. The bands are tensioned by adjustable guide pulleys and maintained in engagement with the wharles by adjustable guide pulleys mounted on the spindle and carrier rails outside the bands. The driving pulleys A<2>, B<2> for the endless bands are mounted on coaxial shafts C<1>, C, which are connected by a belt e on coned pulleys E, E<1> the lower one of which is mounted on the main shaft D. The lower pulley A<2> rises and falls with the spindle rail a<1> and is splined to its shaft C<1>. Each driving pulley has a double groove to accommodate two endless bands, one for each side of the frame. The endless bands pass round guide pulleys b' and a tensioning pulley b<8> mounted on a carriage b<9> adjusted by a screw b<10>. The wharles A<3>, B<3> on the spindles A and carriers B are engaged on both sides by the endless bands. Adjustable guide pulleys A<4>, B<4> mounted in slotted brackets supported by the rails a', b<2> press the bands into engagement with the wharles. The spindles can be stopped by a pivoted piece arranged between a pair of driving wharles A<3> and adapted to be moved into engagement with either of them. The spindles A, Fig. 4, are supported in foot-step bearings a in the rail a<1> and by engagement with the sleeve b of the carrier B. The sleeve b is carried by a self-aligning bearing b' pivoted in an adjustable forked bracket b<3> supported on a stud b<4> adjustably secured to the rail b<2>. The wharles and guiding pulleys are enclosed by guards F, Fig. 8, secured to the brackets carrying the guiding pulleys. The guards comprise hinged covers cut away to accommodate the spindles and the carriers.
Patent GB-143162-A (GB)
Title: Improvements in holders for dyeing cops and the like
IPC: D06B23/04
Filed: 1920-01-26
Abstract: 143,162. Pearce, A. B. Jan. 26, 1920. Cop type.-Relates to hollow holders for cops during dyeing, and consists of an improved construction in which the cop is compressed longitudinally between the two perforated parts of the holder, the upper part A of which has a depending flange A<1> fitting over the lower part B. The part A is sweated, screwed, or otherwise fixed to a plate C, and the part B is screwed or otherwise fixed to a. plate D. Perforations b in the lower part are larger but fewer in number than the perforations a in part A. The plates C, D carry any number of holders, the spaces above the plate C and below the plate D being connected only through the holders. The plates are drawn together by bolts to compress the cops. The plate C may be removable and be placed over the cops after their insertion into the lower parts. Dye liquor is then pumped through from one side to the other.
Patent GB-1293486-A (GB)
Title: Measuring instrument
Inventor: PALENCHER JACQUES
IPC: G01R5/04
Filed: 1971-01-18
Abstract: 1293486 Moving coil electric meters LEBOCEY INDUSTRIE 18 Jan 1971 2385/71 Heading G1Q In a moving coil electric meter the former 9 carrying the moving coil has opposed bearing recesses 7, 8 which engage respective ends of a fixed pivot pin 6. The meter comprises a plastics chassis 1 having recesses supporting an  annular permanent magnet 4 and a cylindrical metal member 5. The pivot pin 6 is held in a resilient plastics ring 27 in the centre of the magnet 4. One bearing 8 is formed in the upper limb of the rectangular plastics former 9 and the other 7 in a resilient arm of plastics or metal which projects inwardly from a side limb of the  former 9. Spiral springs 13, 16 are anchored at their inner ends to tags 12, 15 on a pointer 11 and plate 14 respectively, and at their outer ends to tags 2 2 , 3 2 , on terminals 2, 3 carried by the chassis 1. The coil former 9 also carries, pivotally, a counterweight 17.