baber/WOPTO huggingface dataset:
Patent GB-341066-A (GB)
Title: Improved apparatus for traffic signalling
IPC: B60Q1/34
Filed: 1930-04-23
Abstract: 341,066. Road-traffic signals on vehicles. PRESCOTT, G., 9, Merrion Row, and MURPHY, H., 72A, Harcourt Street, both in Dublin. April 28, 1930, No. 23372/29. [Class 118 (ii).] Relates to the type in which an expanding fan signal normally folded and withdrawn into a housing G fixed at the side of the vehicle is thrust out by means of a convenient handle to expose the signal, and consists in the provision of operating means comprising a longitudinally non-compressible helical spring C connecting the fans on opposite sides of the vehicle such spring being housed in a tube and operated by a handle E fixed near the centre. The fan elements are freely threaded on an axis A and provided with butt ends B the mass of each element being so distributed that some tilt upwards and some downwards to form a fan. The spring being non-compressible, but capable of expansion, the fan on one side may be thrust out without disturbing the other fan in its housing. The handle E may rest in notches F at the right or left of the tube, and when released, the spring draws the fan into its housing.
Patent GB-1146494-A (GB)
Title: Electronic timekeeper
Inventor: BANSHO KIYOSHI
IPC: G04C3/06
Filed: 1966-05-25
Abstract: 1,146,494. Transistor oscillator circuits. S. KAKUBARI. 25 May, 1966 [25 May, 1965; 26 June, 1965], No. 23378/66. Heading H3T. [Also in Division G3] A free-running multivibrator circuit for maintaining the oscillations of the balance wheel of an electronic time piece (see Division G3) comprises R.C. coupled transistors V 1 , V 2 . The circuit supplies pulses to a fixed coil 21 mounted between permanent magnets (15, 16) attached to the balance wheel. These pulses magnetize the upper and lower surfaces of the coil which therefore deflects the balance wheel. The movement of the magnets induces pulses in the coil which trigger the transistor V 2  to synchronize the oscillations of the balance wheel and multivibrator. The values T 1  (equal to R 1 ,C 1 ) and T 2  (equal to R 2 C 2 ) are selected so that T 1 <<T 2  and the period T f  (equal to T 1  + T 2 ) of the multivibrator is selected approximately equal to half the vibration period Tm of the balance wheel. Starting of the balance wheel oscillation is assisted by initially increasing the width of the output pulse of the multivibrator and this may be achieved by a push-button switch SW connecting the resistors R 1 <SP>1</SP>, R 2 <SP>1</SP> or R 1 , R 2 in circuit, R 1 <SP>1</SP> being greater than R 1  to provide the necessary initial increase in the pulse width. The pulse width in the steady state operation of the balance wheel is narrower and this narrowing may be achieved automatically by modifications of the circuit to include diodes. The time constant of the multivibrator is initially large since it includes the internal resistance of the diodes but as the amplitude of the triggering pulse from the coil 21 increases, the internal resistance of the diodes decreases, thereby reducing the time constant and the pulse width. Modifications are described of the circuit for automatically reducing the pulse width whilst a further multivibrator circuit, Fig. 12, incorporating a third transistor of NPN type is also described. Reference has been directed by the Comptroller to Specifications 921,948 and 926,419.
Patent GB-759975-A (GB)
Title: Method and machine for round-edge grinding of steel bands
IPC: B24B9/00
Filed: 1954-08-12
Abstract: 759,975. Grinding steel bands: NOTZ & CO. AKT.-GES. Aug. 12, 1954 [Aug. 13, 1953], No. 23382/54\ Class 60  Round edges are ground on a steel band 14 by drawing it ah a speed of 25 to 65 feet per second between parallel grinding discs 17 in a position which is inclined to the disc shafts 171. Preferably two pairs 17, 17<SP>1</SP>, Fig. 1, of such discs are provided together with two pairs of discs 16, 16<SP>1</SP> in each of which the discs have a greater axial separation than in the pairs 17, 17<SP>1</SP> so that the band passes between them in a position parallel to their axes for flat grinding of its edges. Between the discs the band passes over guide rollers 18, 18<SP>1</SP>, 19 and is driven by one of a pair of reels 2, 2<SP>1</SP> either of which may be driven at will by means of a chain-driven friction disc 11 on a hand lever 10. This hand lever also operates a cam disc 8 which through levers 4, 5 tightens a brake band 3 on the undriven reel Pointers 21, 21<SP>1</SP> provide a continuous indication of the length of band stored on each of the reels 2, 2<SP>1</SP>. The grinding discs 16 or 17 are secured by spring rings to flanged discs 172 and pressed against a freely-rotatable roll 176 by springs.
Patent GB-729883-A (GB)
Title: Improvements in or relating to copolymerizable compositions
IPC: C08G63/58
Filed: 1953-08-26
Abstract: A copolymerizable composition comprises (1) a polyglycidyl ester of a polycarboxylic acid, (2) an a ,b -unsaturated polycarboxylic acid or anhydride and (3) styrene or a derivative. In a modification ingredients (1) and (2) may be partially polymerized.  The esters may be derived from phthalic, oxalic, malonic, succinic, glutaric, sebacic, adipic, pimelic, suberic, azelaic, tricarballylic, citric, tartaric, malic, maleic, fumaric, aconitic and itaconic acids (see Group IV (b)), and ingredient (2) may be maleic, fumaric, aconitic or itaconic acid.  Styrenes specified are styrene, a -methyl-, a -ethyl-, a -chloro-, o-methyl-, m-propyl-, p-ethyl-, o-, m- and p-chloro-, 2,4-dimethyl-, 2,5-dimethyl-, 3,4-diethyl-, 2,5-dichloro- and 3,5-dichlorostyrenes and mixtures.  The polymerization may be carried out with heating alone (example 1) but is preferably effected in the presence of a catalyst such as t.-butyl hydroperoxide or di-t.-butyl- or methyl ethyl ketone-peroxide.  In examples the curing is carried out in two stages and examples 2 and 3 include as a further ingredient a polyester derived from maleic and phthalic anhydrides, propylene glycol and pentaerythritol.  The products are tough and of low shrinkage.ALSO:Polyglycidyl esters of polycarboxylic acids are prepared by reaction of reactive halohydrins, such as epichlorohydrin, epibromohydrin, epiiodohydrin and epifluorohydrin, with alkali or alkaline-earth salts of the polycarboxylic acids.  In particular dipotassium phthalate and epichlorohydrin are reacted at 105-110 DEG  C. with a quaternary ammonium salt as catalyst.  The potassium chloride produced and excess epichlorohydrin are removed to give diglycidyl phthalate which is purified by vacuum distillation. Other polycarboxylic acids specified are oxalic, malonic, succinic, glutaric, sebacic, adipic, pimelic, suberic, azelaic, tricarballylic, citric, tartaric, malic, maleic, fumaric, aconitic and itaconic.  The polyglycidyl esters may be polymerized with a ,b -unsaturated polycarboxylic acids and styrene or its derivatives (see Group IV (a)).
Patent GB-737351-A (GB)
Title: Colour television signal generator
IPC: H04N9/09
Filed: 1953-08-26
Abstract: 737,351. Television. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 26, 1953 [Aug. 26, 1952], No. 23624/53. Class 40 (3). In a (compatible) colour television system of the constant luminance type preselected fractions of the component colour signals are added together to form a composite signal which is supplied to a device having a preselected non- linear characteristic and the output of which provides a component of the luminance signal. As shown in the drawing the component colour signals E R , E G , Es (developed by cameras 10, 11, 12 respectively) are combined in adder 13 to provide a signal which is fed to an amplifier 14 having a powerlaw characteristic <SP>1</SP>/γ (where y is the " gamma " of the picture-reproducing devices employed in co-operating receivers and are also combined, via individual amplifiers 15, 16, 17 (also having respective power-law characteristics <SP>1</SP>/γ), in a further adder 18 to provide a signal The output of amplifier 14, viz. Ey<SP>1</SP>/γ and the output of 18, E<SP>1</SP>Y are then supplied to an adder 21 (having a translation characteristic a lying between zero and unity) and combined to form the luminance signal E L  = aE Y <SP>1</SP>/γ = (1-a)E<SP>1</SP>Y. The red and blue chrominance signals Sa and S B  are then produced by combining the signal E<SP>1</SP>Y (with reversed phase) with the signals ER<SP>1</SP>/γ and E B <SP>1</SP>/γ  i n adders 19 and 20 respectively.
Patent GB-1447026-A (GB)
Title: Improvements in and relating to an agricultural implement for harvesting crop
IPC: A01D34/43
Filed: 1972-05-19
Abstract: 1447026 Forage harvester NATIONAL RESEARCH DEVELOPMENT CORP 17 Aug 1973 [19 May 1972] 23708/72 Heading A1F A forage harvester comprises a rotor 16 pivoted about an axis 25, a hood 18 having an integral stone deflecting part 19, side members 21, rotatable about axis 24 eccentric to axis 25 and carrying the shaft of rotor 16, and braced at one end by a cross tie 23 and at the other by a reciprocating cutter bar 11. The cross tie 23, side members 21 and cutter bar 11 may be rotated, from a first cutting and conditioning position, shown in Fig. 1, to a second position, Fig. 3 (not shown), about axis 24, so lowering the eccentric axis 25 of the rotor 16 enabling previously cut crop to be harvested. The rotor 16 rotates in a contrary sense to that of the land wheels when the harvester is in normal forward operation. The stone deflector 19 is positioned in the outer periphery of the crop path so that stones, picked up by the rotor and generally taking that path, may be diverted from the chopping mechanism 14 whilst crop engaging the deflector 19 will merely re-enter the main crop stream by virtue of its lesser momentum. The conditioning rotor 16 consists of a tube 37 having three flanges, two of which 39 and 40 are shown in Fig. 4, and conditioning elements 17 mounted on bars 41 pivoted to the flanges about 43 and fixed by shear pins 46. The included angle between the arms 49 is approximately 30‹. The elements 17 are at least four times longer in a radial sense than they are wide in an axial sense. A further embodiment of the rotor Fig. 6 replaces bars 41 by flanges 53 individually supporting the conditioning elements 52. The hood 18 bends the crop away from the rotor Fig. 5 (not shown) so presenting the lower, thicker parts of the crop to the rotor. The cutter 11 may be replaced by rotary drum type cutters 63 Fig. 6 mounted in advance of the rotor 16, Fig. 8 (not shown). In this embodiment the cutters may not be moved out of the way of the conditioner for the purposes described above but obviate the need for crop entering augers 20 in the chopping mechanism 14 by centering the crop prior to conditioning.
Patent GB-517975-A (GB)
Title: Improvements in wheel hubs
IPC: B60B27/02
Filed: 1938-08-12
Abstract: 517,975. Vehicle wheels. TAN SAD, Ltd., and SHOTT, P. Aug. 12, 1938, No. 23779. [Class 144 (i)] A wheel hub comprises spoke-flange. a, integral with plain bearing-sleeves a<1>, and a barrel b providing an oil-reservoir d. The sleeves a<1> may be provided with radial or transverse lubricating passages a<2>, a<3>.
Patent GB-317640-A (GB)
Title: Improvements in or relating to steam traps
IPC: F16T1/36
Filed: 1928-08-20
Abstract: 317,640. Geipel, Ltd., W., and Pell, W. Guy-. Aug. 20, 1928. No Patent granted (Sealing fee not paid). Steam traps. - In a steam trap of the kind in which a valve is operated by the bending of tubes 1, 3 having different expansion coefficients, one or more of the tubes 3 carries a threaded collar secured between members 5, 6, which are screwed into the frame -2. Fluid tightness is secured by a V-groove in the member 6 into which the ends of the tube and collar are received. The joint is thus rigid with the frame to allow bending of the tube to take place. Specifications 13811/10; and 10989/12, [Class 99 (i), Pipes and tubes, Joints &c. for], are referred to.
Patent GB-627388-A (GB)
Title: Improvements in and relating to studio couches, settees, divans and the like convertible into bedsteads
IPC: A47C17/32
Filed: 1947-08-29
Abstract: 627,388. Combined bedsteads. UNTERHALTER. G., (trading as UNTERHALTER'S MATTRESS WORKS), and UNTERHALTER, J. Aug. 29, 1947, No. 24000. Convention date, Oct. 10, 1946. [Class 52 (ii)] In an arrangement in which a single bed is normally stowed beneath another bed or couch and is withdrawable therefrom so that the arrangement can be used as a double bed or as two separate single beds the withdrawable bed is provided with a mattress supporting frame which is pivotally supported in the main frame so that the mattress may be in its operative position or reversed for housing within the main frame. As shown the mattress supporting frame 1 is pivoted at 10 at each end to a rail 9 which is mounted at each side on the main frame 3 by a lazy-tong arrangement 5, 6 which is operated by a bell-crank lever 17 and link 19. For stowage beneath the frame of the other bed or couch the rails 9 are first raised by the lazy-tong arrangement 5, 6, the mattress frame 1 rotated about its pivots 10 until the mattress hangs downwardly and then the rails 9 are lowered so that the frame 1 rests on the main frame 3. The bed is then stowed below the other bed or couch to which it may be attached by a lazytong connection. The mattress frame 1 may be arranged to be rotated or reversed by other methods
Patent GB-170540-A (GB)
Title: Improvements in or relating to bronzing machines
IPC: B41G1/00
Filed: 1920-08-14
Abstract: 170,540. Wade, H., (Gamse & Bro., H.). Aug. 14, 1920. Bronzing.-A portable bronzing-attachment for offset and other printing-presses is, while supported on the floor, adapted to be moved from one press to another, and is provided with means for coupling it to the press so that its sheet carrier is driven in unison with the delivery of the press. The attachment comprises chains 14 carrying channelled bars 27 on which are two sheet-supporting flexible aprons 28, in the spaces between which are grippers 10, 11 carrying the sheets beneath a bronze-applying roller 26, reciprocating rubbing-pads 47, and revolving and reciprocating polishing-rollers 59, whence the sl eets are transferred to the grippers of delivery chains. The attachment is mounted on four rcllers A, Fig. 2, on swivels B carried by brackets C, and when adjusted into line with the delivery of an offset press, a gear-wheel 25, fixed to the shaft 17 of the sprockets 22 driving the chains 14, meshes with a wheel 24 on the shaft 21x of the sprockets 21 driving the delivery chains 1 of the press, links 24x fitting over the shafts 17, 21<x> and completing the coupling. Screws D passing through lugs G may be provided to raise the attachment off the rollers A, plates E for the screws being fitted to the floor at appropriate places in front of a press. The sheets are transferred from the grippers of the press, comprising fixed parts 6 co-operating with gripping-fingers 4 on rock-shafts 3 carried by the delivery chains 1 and oscillated by fixed cams 7 engaging rollers 3<11>, to the grippers 10, 11 of the attachment, the parts 11 being fixed and the fingers 10 mounted on brackets 15 oscillated by fixed cams 16. The transfer takes place in the horizontal plane joining the axes of the sprocket shafts 17. 21<x>. Both sets of grippers are spring closed.
Patent GB-1453193-A (GB)
Title: Conveyor systems for cigarettes and other rod-like articles
IPC: A24C5/35
Filed: 1972-10-27
Abstract: 1453193 Conveying cigarettes MOLINS Ltd 26 Oct 1973 [27 Oct 1972] 24096/76 Divided out of 1453191 Heading B8A Cigarettes are transferred from a horizontal conveyer to a pair of spaced parallel conveyers extending upwards from the horizontal conveyer via a band defining the outer periphery of a curved passage extending from a position adjacent to but laterally offset from the horizontal conveyer to a position adjacent to but laterally offset from one of the pair of conveyers and passing round a rotatable member. The pair of conveyers as shown are of the type described and claimed in parent Specification 1,453,191.
Patent GB-738235-A (GB)
Title: Improvements in revolving under clearers for the rollers of textile machinery
IPC: D01H5/64
Filed: 1953-09-01
Abstract: 738,235. Underclearer rollers. ENGLISH SEWING COTTON CO., Ltd., and SMITH, G. Aug. 31, 1954 [Sept. 1, 1953], No. 24100/53. Class 120(2). [Also in Group VIII] An under-clearer roller for textile machinery comprises a central cylinder or stock a of wood or other suitable material, an intermediate layer a<SP>1</SP> of sponge or foam rubber or similar resilient compressible material and an outer layer a<SP>2</SP> of thick cloth or felt.
Patent GB-189271-A (GB)
Title: Process of recovering used paper
IPC: D21C5/02
Filed: 1921-09-12
Abstract: In producing utilizable pulp from old printed or other paper, the material is heated to or near boiling point in a solution of soap and ammonia for 5-20 minutes.  Oleaginous matter contain ink, pigment, and loading, rises to the top and is skimmed off.  A small quantity of oxalic acid is added to destroy any writing ink which may be present.  The mass is then run to a beating engine and beaten for 2-3 minutes with the beater roll raised.  The roll is then lowered into the ordinary working position and the beating contiued for 15-25 minutes, when a further substantial portion of oleaginous matter carrying ink, pigment, &c. rises to the top and is skimmed off, leaving a pulp which may be mixed with fresh pulp and used again. The material may be returned to the boiler after about 5 minutes beating, and heated up again, and the skum skimmed off there.  The skum, may be worked up into ink, paint, blacking for shoes, or any other desired material.
Patent GB-212844-A (GB)
Title: Improvements in gas washing boilers and the like
IPC: D06F1/00
Filed: 1923-09-29
Abstract: 212,844. Dean, W. Sept. 29, 1923. Washing boilers.-In a gas-heated washing boiler of the type in which a plate is arranged between the pan c and casing a to direct the gases towards the pan, the plate h is corrugated. The corrugations extend vertically and the edges may be beaded with a wire. The plate is supported by brackets i screwed to the casing.
Patent GB-150331-A (GB)
Title: Device for automatically adding water to the combustible mixture produced in internal combustion engine carburetters
IPC: F02M1/00
Filed: 1920-08-20
Abstract: 150,331. Mauvillier, B. Aug. 21, 1919, [Convention date]. Spray carburettors.-Water is added to the combustible mixture produced by a carburettor by forming on the carburettor body a a neck b, the bore of which communicates with the mixing chamber and also, through a pipe c and nozzle e, with a water reservoir d. The nozzle e may be replaced by another of different bore to vary the conditions under which the water injection takes place.
Patent GB-1033643-A (GB)
Title: Upholstery and plastic covers therefor
Inventor: CLARKE SYDNEY
IPC: A47C27/18
Filed: 1962-06-26
Abstract: 1,033,643. Upholstered seats & c . DUNLOP RUBBER CO. Ltd. June 13, 1963 [June 26, 1962], No. 24430/62. Heading A4M. A plastic, e.g. polyvinyl chloride sheet, upholstery cover 8 has a top and side walls in which grooves 12 are moulded at least to extend over the top portion. The cover 8 comprises back and seat portions 9 and 10 respectively which overlie a layer 5 of padding such as rubber, polyurethane or PVC foams or springs, secured to a baseboard 1, the edges of the cover 8 being secured by clips 16 to the rim 15 of the basebord 1. Aligned holes 13, 6 and 7 in the cover 8, layer 5 and baseboard 1 respectively provide ventilation. The cover 8 may be slush-moulded or vacuum-formed with grooves 12 having a depth less than twice their width, and the moulded cover 8 then placed in a supporting mould and charged with a polyurethane composition which is allowed to foam. The grooves may have beaded portions.
Patent GB-1432426-A (GB)
Title: Process for the cleavage of hydroperoxides
IPC: C07C27/00
Filed: 1973-05-22
Abstract: 1432426 Resorcinol and hydroquinone SUMITOMO CHEMICAL CO Ltd 22 May 1973 [23 May 1972] 24468/73 Heading C2C A mixture of resorcinol and hydroquinone are obtained by heating an oxidation product of diisopropylbenzene containing m-diisopropylbenzene dihydroperoxide, together with at least one p-disubstituted benzene which is p-diisopropylbenzene dihydroperoxide, hydroquinone, p-isopropenylphenol, p - (2 - hydroxy - 2- propyl)-phenol, p-isopropylphenol or p-hydroxyacetophenone, in an organic solvent in the presence of an acidic catalyst, the weight of p-disubstituted benzene being 5-80% of the weight of the m-diisopropylbenzene dihydroperoxide. The product which contains resorcinol and hydroquinone may be separated into its components by further treatment. Specified acidic catalysts are inorganic and organic acids. Specified solvents are alcohols, ketones and alkylbenzenes. The cleavage may be carried out at a temperature from 50 C. up to the boiling- point of the solvent employed.
Patent GB-492329-A (GB)
Title: Improvements relating to paper holding means for accounting or the like machines
IPC: B41J11/48
Filed: 1937-02-16
Abstract: 492,329. Typewriters &c. BURROUGHS ADDING MACHINE CO. Feb. 16, 1937, No. 24483. Convention date, Feb. 17, 1936. Divided out of 492,261. Drawings to Specification. [Class 100 (iv)] Paper-supports; sheet-feeding arrangements. -In a calculating or like machine having paperholding means adjustable to open-throat position, the item-setting devices are associated with means, preferably power-actuated, for automatically returning the paper-holding means to closed-throat position when the first item is set. The description in the Specification is identical with part of Specification 492,261, but the claims are confined to the feature set out above. Specifications 18058/07, 18320/08, 18321/08, and 18322 /O8, [all in Class 106], also are referred to.