baber/WOPTO huggingface dataset:
Patent GB-645634-A (GB)
Title: Improvements in thrashing machines and apparatus for discharging cavings and chaff therefrom
Inventor: SCOTT ALEXANDER
IPC: A01F12/44
Filed: 1948-06-16
Abstract: 645,634. Threshing-machines. SCOTT, A. June 16, 1948, No. 16185. [Class 58] Cavings and chaff from a threshing machine are collected by a transverse hopper 10 secured to the front of the machine adjacent the end of the cavings riddle 18 and discharged by a suction fan 17 through a duct 16 formed by an inclined deflector plate 15 parallel to one inclined side wall 12 of the hopper and extending across the width of the hopper and almost to the base 13. A wind deflecting plate may be provided across the inside of the front wall of the hopper to prevent the blast of the usual cavings blower from carrying the chaff out of the upper end of the hopper.
Patent GB-1501405-A (GB)
Title: Arrangement with a hollow waveguide section
IPC: H01P5/08
Filed: 1975-04-18
Abstract: 1501405 Waveguide matching LICENTIA PATENT VERWALTUNGS GmbH 18 April 1975 [1 June 1974 10 Aug 1974] 16236/75 Heading H1W A rectangular waveguide is matched to an elliptical waveguide by means of a waveguide section 1 having the same cross-section as the rectangular waveguide and, near the end 3 intended to be connected to the elliptical guide, having a recess 8 in one or both broad walls in the shape of a circular-cylindrical segment or segments. The cross-section of the modified portion is thus that of a circle superposed on a rectangle and intersecting one or (as shown) both broad sides. The diameter of the circle is shown as c and the narrow dimension of the waveguide as b. The longitudinal extent e of the recess is less than #g/4 and the spacing of the recess from the end face 3 is approximately #g/8. A broader match may be obtained by the addition of one or two further, similar recesses 9, 15 spaced at intervals equal to an odd number of eighth-wavelengths from the face 3. In addition, a recess 11 of length no more than #g/16 and diameter less than that of the recess 8 may be provided.
Patent GB-545835-A (GB)
Title: Improvements in the construction of electrodes for use in electron guns
IPC: H01J29/82
Filed: 1940-11-08
Abstract: 545,835. Cathode-ray tubes. ELECTRICAL RESEARCH PRODUCTS, Inc. Nov. 8, 1940, Nos. 16253, 16254 and 16255. Convention dates, Dec. 2, 1939, Feb. 17, 1940, and April 4, 1940. [Class 39 (i)] In an electron gun for use in a cathode-ray tube the opposing surfaces of the first accelerator electrode and the modulating electrode or an extension of the cathode surface are correspondingly dished and designed so that the field produced between them has substantially no component at right-angles to normal to the emissive surface at any points in the beam. Formulae and methods of designing the shapes and widths of beam are given. For a cathode, Fig. 13, with concave emissive surface 150 the beam is concentrated by the electrodes 120, 130, the surface 120a on the former flowing from the cathode surface. For a parallel or cylindrical beam the lower surface 52a, Fig. 11, is flat, the cathode may have extensions 44, Fig. 5, in line with the lower surface. To eliminate the divergent effect of the aperture 37a in the upper electrode a grid may be placed across the opening. For a divergent beam a convex cathode 23b, Fig. 7, is used. If the electrode by the cathode is not used for modulation its surface 52, fig. 11, may be an extension ot the cathode ; if used as a modulator its potential should be zero at maximum current. If the potential of the modulator electrode is negative with respect to the cathode its surface if produced would fall behind the cathode. In a further form the cathode surface 73a, Fig. 15, is part of a sphere and is carried with the electrode 74 from a ring 76 ; the accelerator electrode 75 is carried by a second ring 77, both rings being supported by an insulator 78. Baffles 87 are mounted behind the heater 83. The surfaces 74a and 74b on the electrode 74 and the surface 75a on the electrode 75 are formed to give the desired field for the convergent beam. When used with deflector plates one of these may have a flange extending towards the other to stop the beam striking the target when suitably deflected. An electrolytic method of obtaining the correct shapes of the electrodes consists in using an insulator plate 65, Fig. 14, carrying bars 66 and plates 67, 68 the latter deformable ; by connection of the bars and plates to an oscillator 69 and potentiometer 70 potentials may be impressed on the plates, an indicator 71 being in a line tapped to the bars 66.
Patent GB-228437-A (GB)
Title: Improvements in rotary dryers
IPC: F26B11/02
Filed: 1924-07-07
Abstract: 228,437. Kuntz, W. J. July 7, 1924. Rotary containers.-A rotary drier consists of concentric drums 1, 2 connected together and supported by tyres 3 resting on rollers 4. The outer drum 2 has a ring wheel 6 driven by the motor 8. The furnace flue 10 passes through the feed-head 9 into the drum 2 and terminates near the end of the drum 1. The end of the flue is enclosed by a cylindrical baffle 15 supported in a flange 16 on the drum 1, and the baffle passes through the centre of the feed-head 9, the side plates 17, 18, of which are extended upwards for connection to the inlet tube 23 of the fan 24. An inclined feed shoot 26 passes through the side plate 17 and the annular space in the feed head to an opening in the plate 18, and a door 28 may be provided to control the flow of material. To seal the opening between the drum 2 and the end plate 18 of the feed-head, the drum carries a ring 34 with an inward radial flange 35 which enters the space between two discs 30 fitting tightly upon the flange 29 of a ring secured to the end plate 18. The discs 30 are spaced apart by washers 32 and are secured by nuts 33. The opening 36 in the plate 18 establishes communication between the drum 2 and the feed-head 9. The fan causes the heated gases from the furnace to pass through the complete length of the drum 1 and through the drum 2 to the pipe 23.
Patent GB-274832-A (GB)
Title: Lifting jack
IPC: B66F5/02
Filed: 1927-06-20
Abstract: 274,832. Nilson, L. D. July 26, 1926, [Convention date]. Jacks. -A lever lifting-jack comprises a toothed sector fixed to the frame of the jack, a pivoted lifting arm to which a pawl supporting frame is pivoted, the pawl frame carrying a lifting pawl on a separate pivot and engageable with the sector, and means for actuating the lever arm. The frame is formed of triangular plates 16 spaced apart and mounted on the axles 12 of wheels 20 and also carrying a toothed sector 30. The operating handle 84, Fig. 3, is pivotally mounted on the rear axle 12. The crutch 40 has a pivoted extension head 54 and is connected to the frame by a parallel motion linkage 48, 36 of which the lower arm 36 forms the lifting lever. The lever 36 carries on a pivot 62 a pawl carrying frame 64 the upper end of which is connected by links 94 to the operating handle. The lifting pawl 72 is mounted on a pivot 66 on the frame 64 and the locking pawl 68 is mounted on the frame pivot 62. The pawls are connected by a spring 78 which tends to keep them in engagement with the toothed sector. To raise the load, the operating handle is moved downwards and through the links 94 pulls the pawl frame 64 causing it to fulcrum on the pivot of the lifting pawl 72 and raise the lifting arm 36 and crutch, the locking pawl 68 moving up and engaging the next tooth of the sector. Upward movement of the handle then causes the lifting pawl to engage the next higher tooth ready for the next lifting movement.. To lower the load, pawl disengaging mechanism is brought into action. A cam-engaging lever 106 mounted on the crutch pivot 38 is connected by cables 108 passing round pulleys 112 to a trigger 120 on the operating handle. By pulling the trigger over the dotted line position, Fig. 3, the lever 106 is brought into the operative position with respect to cams 70, 76, Fig. 5, on the pawls and by manipulating the operating handle the pawls are engaged alternately with the sector and the load lowered. When the load is released from the crutch, springs 116 forming part of the cable mechanism disengage, both pawls so that a quick return to the starting position can be effected.
Patent GB-374624-A (GB)
Title: Improved manufacture of rubber compounds
IPC: C08K3/06
Filed: 1931-06-04
Abstract: Loss of tackiness due to sulphur bloom in unvulcanized rubber is avoided by using a mixture of sulphurs, comprising insoluble sulphur and no more soluble sulphur than the rubber will dissolve, i.e. about 1 per cent.  The insoluble sulphur is that which is insoluble in carbon bisulphide and is preferably the form known as S mu, which is obtained by heating ordinary rhombic sulphur to boiling and suddenly quenching in water.  The material so obtained contains approximately 1 part of S mu and 2 parts of rhombic sulphur, which may be washed out with carbon bisulphide. Mixes containing insoluble sulphur are less liable to scorch than mixes using ordinary rhombic sulphur, and may be kept in storage for long periods without showing any tendency to bloom.  Tests are given showing the decreased tendency to scorch exhibited by rubber stocks containing insoluble sulphur, as compared with stocks containing ordinary sulphur.
Patent GB-1463290-A (GB)
Title: Apparatus for forming synthetic plastics bodies by blow moulding
IPC: B29C49/70
Filed: 1975-04-21
Abstract: 1463290 Extrusion blow moulding J A ZABALETA 21 April 1975 [22 Feb 1975] 16336/75 Heading B5A An extrusion blow moulding machine includes a cutter 20 downstream of the extrusion die 11 for severing tubular parisons in synchronism with the continuous rotation of a pair of plates 22 carrying the opposite halves 23 of a series of blow moulds, the half moulds 23 being moved together to enclose a severed parison causing it to rotate with them while inflating air is introduced, e.g. by piercing with a blow needle 24 which is advanced hydraulically into the mould. The extruder 4-10 is mounted via longitudinally and transversely adjustable carriages 3 and 4 on a platform 2 which can be vertically adjusted by an hydraulic ram. A crosshead die 11 contains a tubular core 12, Fig. 3, through which a mandrel 14 having a tapered end 13 is slidable to adjust the width of the die outlet. The mandrel 14 is mounted on a block 15 mounted via hydraulic rams 26 (Figs. 4, 5, not shown) to the extruder barrel 8. One of the rotary plates 22 carries a cam (not shown) which operates a valve (17) carried on an arm attached to the block 15 to control the rams (16) and hence the thickness of the parison. The extrudated is heated by a corona discharge between two half rings 18 below the die and a central electrode (19) attached to the die face. The moulds are opened by hydraulic rams and grippers 25 engage the neck of the article. The gripper head rotates about its support shaft 27 to discharge the article on to a stand 29, Figs. 11, 13, where cutters 30 remove the neck flash and members 32 engage and twist the tail flash to remove it. Alternatively the tail flash is removed by a member 34 (Fig. 13, not shown) positioned between the mould halves so that it becomes embedded in the tail flash and on withdrawal pulls off the flash.
Patent GB-1060595-A (GB)
Title: Hair clippers
IPC: B26B19/06
Filed: 1964-04-20
Abstract: 1,060,595. Hair clippers. KOBLER & CO. April 20, 1964 [April 19, 1963; May 17, 1963], No. 16361/64. Heading B4B. In hair clippers of the kind having a cutting head removably mounted on a handle and driven by a motor contained in the handle, the cutting head comprises a base member 51, Fig. 2, aving a plate 51a on which a stationary cutter blade 52 is mounted, an axle 57 on which a movable blade 56 is rockable, and an arm 51b on which are provided studs 53 insertable in sockets in the handle. The arm 51b is formed as a hair collecting box the side walls of which have slots 54 engaged by the edges of a lid 55. In a modification (Fig. 4) the stationary blade (65) is integral with a block (66) having a slot containing a ball bearing (69) on which is positioned an axle (70) having secured to the free ends thereof base arms (71) formed integrally with the movable blade (72). In another modification, Fig. 5, movable blade 86 bears against stationary blade 82 in two areas and has recesses engaged by catches 87 on one arm 88a of a rockable lever 88, the arm 88a having a cam 91 and a protrusion 92. Arm 81b of base member 81 is formed as a box closed by a lid 85. The arms of the rockable lever may be separate (Fig. 7) and spread apart by a spring. In another arrangement (Fig. 8), the movable blade engages the stationary blade only in the area of the teeth.
Patent GB-416604-A (GB)
Title: Improvements relating to frames for folding mattresses
IPC: A47C19/12
Filed: 1933-06-08
Abstract: 416,604. Folding-mattresses. FREEDLAND, I., Earlston House, Upper Park Road, Broughton Park, Manchester. June 8, 1933, No. 16425. [Class 52 (iv).] The side bars of a folding-mattress are held extended by inserting a bolt C through registering holes in the relatively movable sections, the bolts and the holes being tapered to give greater rigidity. The abutting edges of the plates B carrying the bolt holes are preferably shaped so that the side bars A are set at a slight angle from the straight.
Patent GB-571884-A (GB)
Title: Improvements in and relating to machines for sizing and drying printing paper as it passes to roller printing machines
IPC: B41F25/00
Filed: 1943-10-08
Abstract: 571,884. Drying paper. HARTLEYS (STOKE-ON-TRENT), Ltd., HARTLEY, C. J., and HARTLEY, A. J. Oct. 8, 1943, No. 16471. [Class 34 (i)] [Also in Group VIII] Paper from a roll c is sized at e and pressed against a cylindrical carrier h, rotating freely about a heated cylinder g, by a belt q of cotton or wool &c. and the dried paper passed about a delivery roller j and beneath an anti-creasing blade s to printing rolls k, k<1>, the belt q preventing crinkling as the paper dries. Steam may be supplied to and exhausted from the cylinder g through hollow trunnions.
Patent GB-918433-A (GB)
Title: Improvements in or relating to cyanine and related dyes
Inventor: FRY DOUGLAS JAMES
IPC: G03C1/22
Filed: 1959-05-13
Abstract: 5;5-Dimethyl - 3 - isopropylidene-pyrroline is prepared by reacting 2;5-dimethyl-hexane-2;5 diol with potassium cyanide in the presence of sulphuric acid.  The product may be quaternized by heating with methyl iodide.  Similarly, 5;5 - dimethyl - 3 - isopropylidene-2-phenyl-pyrroline is quaternized by heating with methyl iodide or benzyl bromide and the corresponding 2-methyl compound is quaternized with methyl iodide.  N - [3(2-phenyl-5;5-dimethyl-3-D 1-pyrrolinylidene) but-1-eneyl]acetanilide methyl iodide is prepared by refluxing 1;5;5-trimethyl-3-isopropylidene-2-phenyl-pyrrolinium iodide with diphenyl formamidine in acetic anhydride.ALSO:Methine dyes are described having one of the general formulae II to IV: <FORM:0918433/IV (b)/1> <FORM:0918433/IV (b)/2> <FORM:0918433/IV (b)/3> wherein R1 and R2 are alkyl groups, R3 is hydrogen or an alkyl or aryl group, R4 is an alkyl or aralkyl group, R5 is an alkyl, aryl or aralkyl group, R7 is an alkyl, aralkyl, aryl, substituted aryl, carboxy alkyl or carbalkoxyalkyl group, R8 is hydrogen or an alkoxy, alkylthio, alkyl, aralkyl or aryl group, n is -CH= or -N=, D and D1 complete 5- or 6-membered heterocyclic rings, n, m and y are 1 or 2 and X is an anion.  The dyes are prepared by reacting a quaternary salt of formula I:  <FORM:0918433/IV (b)/4> with a compound of formula V, VI or VII:  <FORM:0918433/IV (b)/5> <FORM:0918433/IV (b)/6> wherein M is a thioether group or, if y is 2, a substituted amino group, and T is an alkoxy, alkylthio or substituted amino group. Alternatively, the quaternary salts of formula I may first be reacted with diphenyl formamidine in acetic anhydride, and the intermediate so formed reacted with the appropriate compound containing a reactive methyl or methylene group, including 2-butylidene malonitrile.  Examples are given of the preparations of dyes having one of the formulae II, II or IV wherein R1 and R2 are methyl groups, R3 is H, methyl or phenyl, R4 is methyl, ethyl or benzyl, R8 is H, methyl, ethyl or ethylthio, D completes a benzthiazole, benzoxazole, indolenine, 2-quinoline, pyrrolidine or 5-methylthio-1;3;4-thiadiazole nucleus and D1 completes a 2-thiothiazolid-4-one, 2-thio-oxazolid-4-one or 2-thiobarbituric acid nucleus wherein R7 is ethyl, phenyl or carboxymethyl.  According to the Provisional Specification the methine chain may carry specified groups of substituents, and acyl and carboxylic ester groups are referred to in place of the CN groups in formula IV.
Patent GB-926528-A (GB)
Title: Improvements relating to electrical apparatus for converting numbers from the binarycode to the cyclic progressive code
Inventor: TEMPEL JULIAN ANDRE
IPC: G05B19/33
Filed: 1960-10-24
Abstract: 926,528. Electric selective signalling systems ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 24, 1961 [Oct. 24, 1960; Jan. 17, 1961], Nos. 16502/61, divided out of 926,524 and 1906/61. Class 40 (1). [Also in Group XIX] A circuit arrangement for converting a number from pure binary code to reflected binary code employs the principle that conversion can be effected by taking the digits of the pure binary number and the same digits propagated to the next higher order, adding together digits of like significance but ignoring carries, discarding the least significant digit of the resultant and giving the next-to-least significant digit thereof the same significance as the least significant digit of the original binary number. In the embodiment shown in Fig. 1, the pure binary number to be converted is fed to an input IN, least significant digit first, to two magnetic cores 21, 22. The various cores in the circuit shown are supplied with trains of interlaced shift pulses pp, qq, rr, one pulse from each train occurring in each digit period. Assuming the input pulse at IN to coincide with an rr shift pulse, the next pp pulse switches the core 21, the following qq pulse switches the core 22 to produce an output which resets the core 23. The core 23 is switched by the following pp pulse to produce an output delayed by one digit period with respect to the output of the core 21. The outputs of the cores 21, 23 are fed to an " exclusive or " gate comprising cores 24, 25 which produces an output at OUT only when one of the inputs is a " 1 " and the other a "0." In a modification (Fig. 2, not shown), the necessity for supplying pulses to the two cores in parallel is obviated, only four cores and two trains of shift pulses being required.
Patent GB-476806-A (GB)
Title: Improvements in or relating to the production of cellulose derivative coating compositions
IPC: C09D101/18
Filed: 1936-06-12
Abstract: Cellulose derivative coating-compositions are prepared by dispersing a pigment in a cellulose derivative product by kneading, said cellulose derivative product being one which has been obtained by treating the cellulose derivative with a mixture of a volatile solvent therefor and a non-solvent organic diluent in such amount of mixture in relation to the cellulose derivative as is sufficient to wet and swell the said derivative to a friable product, but of such composition that the swelling of the cellulose derivative is insufficient to cause it to cohere to a plastic mass.  The pigmented product is then mixed with the other ingredients of the coating composition, e.g. solvents, diluents, resins, plasticizers, softeners and the like.  The pigment may be pretreated with a diluent such as propyl alcohol, amyl alcohol, or an aromatic hydrocarbon.  In an example, the friable mass is obtained from nitrocellulose by mixing in a rotating barrel with ethyl acetate, isobutyl acetate, toluol and ethyl alcohol.  In a second example, mixing is carried out in a kneading machine.  In a third example, the following ingredients are used, nitrocellulose, ethyl alcohol, toluol, ethyl acetate, isobutyl acetate and amyl alcohol.  Other examples illustrate the kneading of the pigment with the friable product.
Patent GB-1534110-A (GB)
Title: Process for producing a photographic support
IPC: B32B23/08
Filed: 1977-04-20
Abstract: 1534110 Coating a photographic base FUJI PHOTO FILM CO Ltd 20 April 1977 [27 April 1976] 16524/77 Heading B2E [Also in Division B5] A photographic support is obtained by curling a paper base and coating the curled base on both sides with a hydrophobic resin. Preferably the curling is convex on the surface which will ultimately be coated with the photographic emulsion layer. The resin may be polyethylene, polypropylene, ethylenevinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-propylene copolymer, polyethylene terephthalate, cellulose triacetate or polyvinyl chloride.
Patent GB-529689-A (GB)
Title: Improvements in and relating to x-ray apparatus
IPC: H05G1/66
Filed: 1939-06-06
Abstract: 529,689. Supply systems for X-ray apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. June 6, 1939, No. 16612. Convention date, June 7, 1938. [Class 38 (iv)] The supply circuit for an X-ray tube 10 of the type having a motor-driven rotatable anode 12 (e.g., as described in Specification 495,435) is arranged so that anode voltage is only applied when the anode is rotating above a predetermined speed. This is effected by including in the primary circuit of the anode supply transformer 27 the contacts of a relay 30 the closing coil of which is -energized by operation of a relay 39 which is responsive to voltage conditions in a winding 17 which, in association with a winding 16 and condenser 32, provides energization for the stator of the motor 14 driving the anode 12. The operating coil of the relay 39 is connected across a condenser 41 which is connected across the winding 17 in series with resistances 42, 43 the value of which determines at what motor speed the relay operates. An exposure-timing relay 50 may be included in the circuit of the closing coil of the relay 30.
Patent GB-1312855-A (GB)
Title: Welding apparatus
IPC: B23K9/032
Filed: 1971-05-24
Abstract: 1312855 Welding by fusion J & W MULLER GmbH 24 May 1971 [22 May 1970] 16638/71 Heading B3R [Also in Division H2] In welding a three-dimensional curved seam at the intersection of two pipes 1, 2 the pipes are clamped together and rotated about the axis of the pipe 1 by means driven by a motor M through a transmission 10, a welding torch 4 is coupled to the transmission 10 and is moved (via a lever system or template not shown) in a direction Z-Z parallel to the pipe 1 axis so as to be maintained at a constant distance from the seam, and the motor M is variably energized via a potentiometer 6 the wiper of which is controlled in accordance with the rotational position of the pipe via the transmission 10, a cam 9, a cam following rack 8 and a pinion 7, so that the seam is moved past the torch at a constant linear velocity. The current to the motor is reduced by an amount proportional to the cam height which is made proportional to seam length per increment of pipe 1 rotation. The mean velocity of the motor M is set on a further potentiometer 5.