baber/WOPTO huggingface dataset:
Patent GB-452234-A (GB)
Title: The manufacture of chromable azo dyestuffs of the pyrazolone series
Filed: 1935-07-16
Abstract: Yellow chromable dyes are obtained by coupling with a pyrazolone derivative, not containing a group inducing solubility in water, a diazotized 2-amino-1-carboxybenzenesulphonarylide of the benzene series substituted with a carboxylic group in the SO2NH-aryl nucleus; the SO2NH-aryl nucleus may carry other substituents excepting a sulphonic or an additional carboxylic group.  The products may be applied by the ordinary chroming process or by the metachrome process.  In the examples: (1) 2-amino-1-carboxybenzene-5-sulphanthranilide is diazotized and coupled with 1-phenyl-3-methyl-5-pyrazolone; the diazo component is prepared by condensing anthranilic acid with 2 - chloro - 1 - carboxybenzene - 5 - sulphochloride, and heating the product with ammonia under pressure; the 2-chloro-1-carboxybenzene-5-sulphochloride used as a starting material is obtainable from 2-chlorobenzoic acid and chlorsulphonic acid; (2) 2-amino-1-carboxybenzene-5-sulpho-(3<1>-carboxy)-anilide is diazotized and coupled with 1-phenyl-3-methyl-5-pyrazolone; the diazo component is obtainable from 3-aminobenzoic acid as set out in example 1; (3) 2-amino-1-carboxybenzene-5-sulphanthranilide is diazotized and coupled with 1-(2 : 5-dichlorophenyl)-3-methyl-5-pyrazolone.  Other diazo components are obtainable by condensing 4-aminobenzoic acid or nitroaminobenzoic acids with 2-chlorobenzoic acid sulphochlorides, and converting the products into amines by reaction with ammonia. Other specified coupling components are 1-monochlorophenyl-3-methyl-5-pyrazolones, and 1-(nitrophenyl)-3-methyl-5-pyrazolones.  Specifications 302,965, [Class 2 (iii)], and 439,680, [Group IV], are referred to.  The Specification as open to inspection under Sect. 91 states that suitable diazo components are obtainable (a) by condensing 2-chlorobenzoic acid sulphochlorides with halogenaminobenzoic acids, and heating the products with ammonia under pressure, or (b) by condensing aminobenzoic acids or their halogen or nitro derivatives with 2-nitrotoluenesulphochlorides, and subjecting the products to reactions whereby the methyl group is oxidized to the carboxylic group, and the (or a) nitro group is reduced, or (c) by condensing aminobenzoic acids or their halogen or nitro derivatives with 1-acetylamino-2-methylbenzene-5-sulphochloride, and subjecting the products to reactions whereby the methyl group is oxidized to the carboxylic group and the acetylamino group is saponified. 3-Methylpyrazolone is specified as a coupling component.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1151069-A (GB)
Title: Improved Slow Wave Circuit and Tubes Using Same.
IPC: H01J25/58
Filed: 1966-05-09
Abstract: 1,151,069. Travelling wave tubes. S-F-D LABORATORIES Inc. 9 May, 1966 [7 May, 1965], No. 20506/66. Heading H1D. In a slow wave circuit in which a helix circuit portion 6 is supported on a series of conductive stubs 7, the stubs are so dimensioned as to have a characteristic impedance greater than one half the characteristic impedance of the helix circuit, and the helix circuit portion 7 is in the form of a strip-line conductor of width a which is greater than the pitch d. The characteristic impedance Z 0  of stubs or helix may be calculated from Z 0  = 377d/a#, where a is the width of the conductor and d the spacing or pitch. Electron beam 11 may be interacted with the r.f. fields associated with any face 12, 13, 14 of the helix or with the field associated with the stubs or may pass coaxially through the helix. The stubs 7, a quarter of the mean wavelength high, provide thermal connection between helix 6 and heat sink 8. In Figs. 8-10 (not shown) the slow wave circuit is a helix coupled ladder line or slot circuit comprising a wall member with an array of transverse slots defining conductive bars connected at top and bottom and wherein the central portion of a bar forms one side of the helix. The bars and top and bottom members may be hollow to provide a passage for a coolant fluid. In Figs. 13, 14 (not shown) the helix is supported from a hollow circular heat sink by two sets of diametrically opposed stubs or vanes, and slabs of lossy material may be provided at the ends of the vane adjacent the heat sink. Alternatively, Figs. 16, 17 (not shown), the heat sink may be rectangular in cross-section and the helix circuit may be bifilar with each set of vanes supporting one helix so that a D.C. voltage may be applied between the two helices to effect electrostatic focusing of the electron beam passing through the centre of the helices. Employed in broadband microwave power amplifiers such slow wave circuits increase the band width at the expense of the electronic interaction impedance. The tube may have linear or circular geometry and may be O- or M-type.
Patent GB-1245047-A (GB)
Title: Improvements in or relating to valve assemblies
Inventor: CORNELIUS RICHARD T
IPC: F17C13/04
Filed: 1969-04-22
Abstract: 1,245,047. Bursting discs. CORNELIUS CO. April 22, 1969, No.20579/69. Heading F1P. [Also in Division F2] A combined valve and handle 10 for attachment to a pressurized gas bottle 18 has a valve member 12 movable axially relative to seat 26 by rotation of knob 13 having a non-circular shaft extension 44 slidable in the valve member. The handle 14 has a skirt 38 retained on the valve body by bolt 15 and includes regions 42 which fracture to allow escape of gas passing to chamber 33 from the bottle through frangible relief disc 16. Bolt 15 serves additionally, to prevent direct impact of the gas stream upon wall 40 of the handle. The outlet 20 receives gas via passage 28 and can be covered by a cap chained to a clip (40) retained by bolt 15. The top of the bottle defines with the top of the handle an imaginary conical envelope within which knob 13 is located for protection. The valve shaft has a collar 46 located between seals compressed by cap 48.
Patent GB-1526669-A (GB)
Title: Book covers
IPC: B42D3/04
Filed: 1977-05-17
Abstract: 1526669 Book cover B G ULPH [trading as BGU MFG CO] 17 May 1977 20589/77 Heading B6A According to the size of book 1, flap 10 is tucked under either band 9 or band 9a, so that the loose cover is held by engagement of one of the book covers with pocket 5 and the other with the tucked-in flap.
Patent GB-940913-A (GB)
Title: Improvements in or relating to vending machines
Inventor: COOKSEY JAMES REGINALD
IPC: A47F1/10
Filed: 1960-06-13
Abstract: 940,913. Vending apparatus. GLOSTER EQUIPMENT Ltd. May 25, 1961 [June 13, 1960], No. 20664/60. Heading G4V. A vending machine, particularly for cartons of liquid, has a storage compartment divided into two columns A, B by flaps 1, 2, 3 pivotally mounted above each other, each flap having two arms each of which is capable of supporting an article in one column when the other is held against movement into the other column by the article there, and as an article is dispensed from the bottom of one column the remaining articles drop to be supported by a flap immediately below the flap previously supporting them. The two lowermost flaps 2, 3, act as control flaps and their spindles 20, 16 extend through a fixed main plate 11 and a movable cam plate 12 and have turned-over ends 21 and 18 which respectively ride in slots 14 and 22 and 13 and 19 in the cam plate and main plate. An operating lever 30 spring-loaded towards the left slides on a pin 32 and carries a pin 35 which extends through a U-shaped slot 37 in the main plate 11 and a slot 15 in the cam plate 12. In the rest state, Fig. 3, the spindle 20 of the flap 2 is trapped by the slot 14 in the cam plate 12, which is prevented from rising by the engagement of the pin 35 of the operating lever with the upper face of the U-slot 37, and the spindle 16 of the flap 3 is locked by the article supported by the arm 2b of flap 2. When the operating lever 30 is moved to the right, against the action of its spring 36 and of a lever 38 loaded by a spring 39 and bearing on the pin 35, the weight of the carton on arm 2b rotates the spindle 20 to raise the cam plate so that the end 21 can move in the nowaligned slots 14, 22 to the opposite end of the slots, assisted by a balance weight 23. The article now discharges past the arm 2b and the arm 3b is no longer locked by an article but the spindle 16 of the flap 3 is prevented from rotating by the central hump of the slot 13 preventing movement of the end 18 in the slot 19 until the lever 30 is allowed to return under the action of the springs 36, 39. The cam plate then moves down again to bring the hump below the end 18 and the flap 3 and all the flaps 1 above it reverse so that the articles fall by one stage and the lowermost article is supported by the arm 2a. When both columns are empty, the cam plate moves down so that the operating lever is horizontal and the pin 35 is movable in the lower leg of the U-slot 15 and is clear of the lever 38 so that the spring 39 is ineffective. The two columns may be associated with other sets of columns with the operating levers arranged so that when the lever of an empty column falls to the horizontal position it abuts and can operate the lever of the next set of columns. In a modification, the lever 38 and spring 39 are omitted and the slot 13 is replaced by a humped top portion of the cam plate.
Patent GB-822879-A (GB)
Title: Improvements in or relating to the production of tetrahydrofuran
Inventor: BANFORD WILLIAM HARRISON
IPC: C07D307/08
Filed: 1958-06-27
Abstract: Tetrahydrofuran is produced from furan obtained by the catalytic decarbonylation of furfural by treatment of said furan with a caustic alkali followed by hydrogenation in the presence of a metal hydrogenation catalyst, such as finely divided nickel, platinum or palladium in the pure state or on an inert support. The preferred starting material is distilled furan obtained from furfural by vapour phase decarbonylation in the presence of steam over mixed chromites as described in Specification 575,362, [Group IV].  The furan is extracted with a dilute aqueous solution of caustic alkali such as sodium or potassium hydroxides, preferably containing 1 to 15% by weight of caustic alkali.  The extraction may be carried out in a continuous liquid-liquid extractor.  The hydrogenation may be effected at ordinary or elevated temperature, liquid phase continuous hydrogenation using tetrahydrofuran as a reaction medium being preferred.
Patent GB-425521-A (GB)
Title: Improvements in or relating to means or devices for investigating, correcting and developing the power of human vision
IPC: A61H5/00
Filed: 1933-09-06
Abstract: 425,521. Sight - testing apparatus. SIMPKINS, R. B., 13, Holly Road, Edgbaston, Birmingham. Sept. 6, 1933, No. 20737/34. Divided out of 425,474. [Class 97 (i)] [See also Group VI] Apparatus for testing the ability of the eye to follow straight-line and circular movements comprises a disc 11 bearing a central focusing spot and carried on a slide 11<c> mounted on an arcuate bar 10. The bar is secured in a diametral position on a disc 15 rotatably mounted by a spindle 15b on a handle 8<a>. A bar 13 pivoted behind the disc 11 is used to move the disc along the bar or to rotate the disc 15, either of these movements being prevented if desired by the provision of a locking screw 12 and a lock-nut 17. In a modification the disc 15 is rotatably mounted in an annular mounting carrying the handle 8<a> and the bar 10 may be mounted behind the disc 15, which is provided with a diametral slot through which the support for the disc 11 protrudes. In this construction the bar 13 may be replaced by a disc loosely mounted on the support for the disc 11. In a further modification, the disc 15 is dispensed with, the bar 10 being mounted on a ring rotatable in an annular mounting. Specification 425,474 is referred to.
Patent GB-860166-A (GB)
Title: Improvements in or relating to roller bearings
Inventor: TOMPKINS FREDERICK WILLIAM
IPC: F16C29/04
Filed: 1957-07-01
Abstract: 860,166. Bearings. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 1, 1958 [July 1, 1957], No. 20777/57. Class 12 (1). A rectilinear-motion roller-bearing, e.g. for supporting and accommodating the radial and longitudinal expansions of a heavy-pressure vessel containing hot fluids, comprises an upper assembly 1 having a pair of cylindrical rollers 6, 7 joined by links 8 and bearing-pins 9 and acting between upper and central bearing-plates 2, 3, and a lower assembly 4 comprising four cylindrical rollers 16 which are articulated by links 17 and bearing-pins 18 and act in a direction at right-angles to the rollers 6, 7 between the central bearing-plate 3 and a lower bearing-plate 5. The upper and lower rollers 7, 16 carry diametrically-opposed pins 11, 19 with ball-heads 12, 20 respectively, which engage in corresponding sockets 13, 21 in the respective bearing- plates and prevent the rollers from being disassociated with the bearing-plates. The locating-pins 11, 19 are welded in holes drilled in flats machined in the respective rollers. The bearing-plates 2, 3, 5 have side flanges which locate the roller assemblies laterally.
Patent GB-281008-A (GB)
Title: A cushion device for petrol and like liquid fuel delivery apparatus
IPC: B67D1/16
Filed: 1926-08-24
Abstract: 281,008. Moss, H. G. Aug. 24, 1926. Shields.-A cushion device for petrol and other fuel delivery nozzles is cut from a flat sheet of material and comprises a sleeve portion 1 to embrace the fuel conveying pipe ond a cushion portion 6 adapted to lie along underneath the .metal nozzle of the conveying pipe. The sleeve part may be held in place by press studs 4, the cushion portion being apertured to allow the delivery spout of the nozzle to pass through. A flexible or other cap 10 may be attached by an elastic or other means 11 to close the nozzle to keep it clean.
Patent GB-148980-A (GB)
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,980. Signal Ges. Dec 27, 1918, [Convention date]. Navigable channels, systems of indicating.-In systems for indicating navigable channels by submarine cables carrying alternating current, the position of the far end of a cable is marked by a submarine sound transmitter, which may draw its operating-current from the same or a separate cable. In the arrangement shown in Fig. 3, current from an alternator 1 is distributed by a switch 4 alternately to indicating cables 2, 3, from the ends of which the current passes to ground through the transmitter 6. The sound signals may be rendered intermittent by an interrupter 7, which switches the current alternately through the transmitter 6 and through a substitute-circuit 9, 10. The interrupter 7 may be at the shore end, between the alternator 1 and switch 4.
Patent GB-1065866-A (GB)
Title: A signal converting system for start-stop telegraph signals
IPC: H04J3/07
Filed: 1964-05-20
Abstract: 1,065,866. Telegraphy. KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA. May 20, 1964 [May 21, 1963; Sept. 11, 1963], No. 20846/64. Heading H4P. In a speed-changing telegraph unit input Start/Stop signals are converted to isochronous signals having a higher bit rate, any gap in the output, due to its higher speed, being filled by a like bit to that last transmitted. In one embodiment, 7¢-bit signals are shaped at 2 and sampled at 3, the samples being stored successively on toggles 4, 5. Unit 24 starts producing sampling pulses at the input bit rate when the output of the shaper 2 is opposite to the bit stored at 4 (i.e. a Start pulse has arrived subsequent to a Stop pulse) and when counter 26 is at rest. Counter 26 counts 7 sampling pulses and allows only these 7 pulses to pass to sampling gates 22a, 22b. Unit 7 provides read-out pulses at the output bit-rate and unit 6 controls the transfer of bits from store 4 to store 5. If one pulse from unit 7 occurs between adjacent sampling pulses from unit 24, store 5 takes up the state of store 4 and the original state of store 5 passes to the output 80. However, if two pulses from 7 occur between adjacent pulses from 24 there is no such transfer of bits in response to the second of these pulses and the bit stored at 5 is repeated to the output. In this manner, whenever the output isochronous signals " overtake " the input signals a Stop bit is inserted between the Stop and Start bits of adjacent characters. Where the output speed is much greater than the input speed more than two stores are used. A multiplex system uses devices as above for each input and time shares the read-out pulses from a common unit 7.
Patent GB-423047-A (GB)
Title: Improvements in or relating to grips or handles for cocks, valves and other articlesrequiring an insulated handle
IPC: F16K31/60
Filed: 1933-07-25
Abstract: 423,047. Handles for valves, switches, &c. DEWRANCE, SIR J., 165, Great Dover Street Southwark, London. July 25, 1933, No. 20945. [Class 135] [See also Groups XXV and XXXVII] A handle for a valve, electric switch, or the like is secured to a spindle by a split nut embracing a recessed part of the spindle and screwing into a socket formed in the handle. The handle may be formed from phenolic condensation products or mouldable thermoplastic resinous substances such as the material known under the Registered Trade Mark " Bakelite," the material being moulded around a metal socket forming part of the means whereby the handle is attached to the spindle. The socket has a polygonal upper part 2 and a lower flange adapted to extend beyond the surface of the material. Internally, the socket is formed with a screw - threaded part 6 leading to a tapered part 9 which terminates in a squared part 8. To prevent material entering the socket the squared part is covered by a plate 7 held in position by a flange 15. The spindle 3 has a recessed part to receive a split nut 4 adapted to be screwed into the socket and so press conical and square parts on the spindle into mating parts in the socket.
Patent GB-484295-A (GB)
Title: Improvements in and relating to shock absorbers
IPC: F16F1/38
Filed: 1936-07-29
Abstract: 484,295. Shock - absorbers. GOLDSCHMIDT, M. July 29, 1936, No. 21021. [Class 108 (iii)] A shock-absorber comprises a plurality of pairs of metal elements of hollow cylindrical or prismatic form in which some of the pairs 7, 8 of elements have rubber placed between the elements of each pair and vulcanized thereto so that the adhesion exceeds the cohesion of the rubber, while the remaining pair 7<1>, 81 or pairs of elements act simply as distance members. The construction shown is adapted mainly for resisting relative axial movements of members 2, 9 but also acts to resist small relativelyrotatable movements thereof. The metal elements are keyed on the members 2, 9 and secured between a cover 4 and shoulder 5 on the member 2, and between a shoulder 10 and a washer 11 and nut 12 on the member 9. The washer 11 and cover 4 are made conical to allow for deformation of the rubber and prevent complete separation of the members 2, 9 in the event of destruction of the rubber. Specification 428,173 is referred to.
Patent GB-923635-A (GB)
Title: Roofing material
IPC: E04D5/12
Filed: 1959-06-19
Abstract: 923,635. Roofing material. SCHULLER SERVICES Ltd. June 19, 1959 [Dec.31, 1958], No.21185/59. Class 140. [Also in Group X] A roofing material comprises a perforated sheet of glass fibre mat 3 coated on one surface with asphalt or coal tar, and on the other surface with granules 3a of cork or of mineral such as gravel, pebbles, pyrites or quartz. The granules may be of a size to pass through a sieve having from 5 to 10 meshes per inch. The perforations are of about # inch in diameter and are uniformly spaced on centres about 3 inches apart.
Patent GB-1025330-A (GB)
Title: Finishing apparatus for molded pulp paper items
Inventor: CRABTREE KENNETH LESTER
IPC: D21J5/00
Filed: 1964-05-22
Abstract: 1,025,330. Endless conveyers. KEYES FIBRE CO. May 22, 1964, No. 21203/64. Heading B8A. [Also in Division B5] Pulp articles 37 are fed to a rotary turretfinishing press (see Division B5) along conveyers 30, 41, and 42, and a side feed conveyer 39. The articles are fed from belts 32 to belts 43, the articles being centralized on the belts 43 by intermediate vibrating belts 44 and are thence fed on to channels 55 by means of flexible fingers 60 (see Fig. 6, not shown), each of which are mounted on a chain 59 centrally disposed above each channel. Fingers 60 transfer the articles to a second set of fingers 62 which engage the rear edge of the articles, and which are mounted on pairs of chains 61, one disposed each side of chains 59. These fingers serve to align the articles which are then transferred by gravity on to the side feed conveyer 39, the articles being tipped on to their sides during the transfer. The articles are then pushed, by retractable fingers 66, mounted on an endless chain 64, along conveyer 39 to the feeding point of the press. In the event of the press malfunctioning the articles may be diverted from conveyer 43 to a lower take off conveyer 53. A part of conveyer 43 runs on a member 48 which may be pivoted about 47 by means of links 51 and 52 to position shown in phantom lines in Fig. 4 (not shown). The links are actuated by a disc 50 rotated by a worm wheel 50a, itself rotated by an air motor 49. The articles on conveyer 39 may be re-oriented by a rotating spoked wheel which engages one corner of the article and thus tips it (see Fig. 1, not shown).
Patent GB-690185-A (GB)
Title: Improvements in or relating to the cooling of rotary compressors or motors
IPC: F01C1/08
Filed: 1950-08-28
Abstract: 690,185. Rotary engines or pumps. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. Aug. 28, 1950 [Sept. 15, 1949], No. 21211/50. Class 110(ii) The rotors of a meshing-screw engine or pump are constructed by welding or screwing together plates 10 which contain cooling channels 22. Tubes 24 may be provided to give continuity to the channels which conduct cooling fluid from an inlet chamber 68 to an outlet 70. In one form end members 40, 42 are welded to the plates and also to hubs 72, 74. Screwed rods, or rods with riveted heads may be used to secure the plates together. Slight axial clearances may be allowed to allow for thermal expansion of the plates. Projections 14 may fit into corresponding recesses in adjacent plates, or separate sealing plates, with projections, may be inserted between pairs of plates. Figs. 4, 5 show a modification, the rotor being built up of a large number of plates 46 containing punched holes into which tubes 24 are inserted. To prevent leakage through a space between two plates, radial recesses 54, 56 are formed. A packing member 58, freely fitting, is placed as shown. It has a hooked end 60, Fig. 7 (not shown) extending into an offset portion 62 of the recess 54. In a further arrangement a projection on one disc may enter a recess on the other, Fig. 6 (not shown).
Patent GB-951962-A (GB)
Title: Improvements in or relating to universal driving couplings
Inventor: TIFFIN THOMAS
IPC: F16D3/41
Filed: 1961-06-13
Abstract: 951,962. Universal joints. DRONSFIELD BROS. Ltd. May 14, 1962 [June 13, 1961], No. 21221/61. Heading F2U. A Hooke's type universal joint between the headstock of a grinding machine and a roll to be ground which joint permits angular and eccentric misalignment between the coupled parts, comprises a central spider 3 having two pairs of arms 4, 5 respectively slidable radially and rotatable in bosses 6, 7 fast with driving and driven brackets 1, 2. Each arm 4, 5 is rotatably mounted by a ball or roller bearing 11 in the central bore of a rectangular block 8 which is radially slidable in the associated boss 6 or 7. A ball or roller bearing 9 is interspersed between the block 8 and boss 6 or 7. The spider 3 may be centralized by screws 18 in cover plates 16 of the bosses which screws 18 are interconnected for simultaneous movement by rods 27, and intermeshed bevel gears 25. The rotational axes of the brackets 1, 2 may be aligned by screwing bolts 40 in the brackets 1, 2 into engagement with the bosses 6, 7.