baber/WOPTO huggingface dataset:
Patent GB-186980-A (GB)
Title: Improvements in motor vehicles
IPC: B62D61/02
Filed: 1921-07-05
Abstract: 186,980. Morgan, A. July 5, 1921. Safety wheels and supports.-Motor vehicles, particularly those with wheels arranged in tandem fashion, have side supporting-wheels 4, Fig. 3, mounted on rockers 5, pivoted on fulcrums 6 and the ends of which are elastically connected with an arm 9 by rods 7 and springs 7<2>. Ordinarily, the side wheels are lifted off the ground by moving a lever 10, which moves the arm 9, and when running in a curve the inside wheel rests on the ground substantially vertically as shown, the dotted line A, A representing the road line; also the distance a of this side wheel 4 from the main wheels 2 is increased, giving greater stability. The side wheels are mounted trailingly on arms 12, Fig. 5, controlled by springs 14, so that they can turn about 13 on rounding a curve and in such a way as to give small lateral displacement. In an arrangement in which there are means for setting the wheels by power, Figs. 8 and 9, rockers 5<1> are pivoted on a fulcrum 6<1> and are drawn up by springs 29 attached to a frame 28 but are held down by a pawl 34 on the frame 28, which pawl engages a ratchet sector 30 keyed to a shaft 8<1>, to which springs 7<1> are fixed, these springs being also connected to the rockers 5<1> by links 32 and arms 33. The springs 29 raise the wheels on removal of the pawl 34 by controls 22, 20, and the wheels are lowered by pawl devices 35, 36, reciprocated by the engine, and engaging with the ratchet sector, which is thus moved down, lowering the wheels through the springs 7<1> and links 32. The teeth on the ratchet only extend to a certain distance, so that the wheels are not pushed down too far. The lever 23 moving the pawl 35 also increases gas supply. The position of the side wheels ia indicated to the driver by a cord attached to the rockers passing over a pulley connected with the pointer. A treadle 24 may be used to arrest the wheels in intermediate position.
Patent GB-440116-A (GB)
Title: Improvements in or relating to guides and supports for typewriter ribbons
IPC: B41J35/06
Filed: 1934-06-20
Abstract: 440,116. Inkribbon mechanism. BALDWIN, R. E., 123, Fairlands Avenue, Thornton Heath, Surrey. June 20, 1934, No. 18300. [Class 100 (iv)] An ink-ribbon guide comprises a plate 5 having a pair of projections 6 on one face, so spaced as to guide the. ribbon 4 which passes between them, and a perforated resilient member 7 secured to the plate and engaging over the projections. The plate 5 is screwed to a peg 8 engaging a socket in the platen carriage 1, and is curved to fit the platen and press the paper thereto, so that the ribbon is held away from the paper. The edges of the plate 5 are preferably bevelled to prevent wear of the ribbon. The member 7 is curved back at its upper end so as to be easily retracted from the projection for engagement or removal of the ribbon. The guide may form the vibrator.
Patent GB-1404901-A (GB)
Title: Variable frequency electrical motor control system
IPC: H02P25/02
Filed: 1973-04-16
Abstract: 1404901 Frequency changing; control of brushless motors SIEMENS AG 16 April 1973 [19 April 1972] 18302/73 Headings H2F and H2J A motor control circuit comprises a controlled rectifier 2 fed from A.C. source R, S, T and connected by a D.C. circuit 3 to a controllable inverter 5. Circuit 3 includes a smoothing inductance 4 shunted by a diode 6 and controllable rectifier 7, a commutating capacitor 9 being connected to rectifier 2 when rectifier 7 conducts. As shown, a commutatorless motor 1 is supplied by the inverter 5 which is turned-on together with rectifier 2 when capacitor 9 is charged with normal polarity. When rectifier 7 is turned-on, the capacitor discharges and turns off rectifier 2, and the current maintained in inductance 4 charges the capacitor with opposite polarity, so that inverter 5 is turned-off. Rectifier 2 turns on again, turning-off rectifier 7, and the current through the inductance 4 restores the charge on the capacitor to its original polarity, and inverter 5 turns on again. A controller 15, receiving actual signals from tacho-generator 13, rotor-position indicator 14 and current transformer 16 and a desired speed signal at input 17, controls the rectifiers 2 and 7, and inverter 5 through connections 19, 20 and 18, the arrangement being such that the frequency of inverter 5 is varied to run the motor up to speed and thereafter controlled to maintain the speed at the desired value. At normal speeds the inverter 5 is commutated by the back EMF in the motor windings. At low operating or run-up speeds the back EMF is insufficient to effect commutation, which is then achieved by the action of members 6, 7 and 9 previously described.
Patent GB-345171-A (GB)
Title: Improvements relating to the manufacture of tools
IPC: G03B17/34
Filed: 1930-06-14
Abstract: 345,171. Making tools. KRUPP AKT.-GES., F., Essen, Germany. June 14, 1930, No. 18310. Convention date, Nov. 6, 1929. [Classes 83 (ii) and 83 (iv).] Brazing.-Tools, such as twist, rock, coalmining, and other drills, milling-cutters and other bits of complicated shape, with working edges of hard metal alloys soldered to a steel or iron body such as a shaft or disc, are made by inserting between the body and working part a thin sheet or strip of tough metal or alloy having a coefficient of expansion approximately equal to that of the working part, and then soldering the parts together. Cracks in the working part are thus avoided. The working part may consist of carbide of tungsten or molybdenum, with or without metals such as cobalt, nickel, or iron and the insert may consist of molybdenum, nickel-iron, chromium or nickel. A thin sheet or strip of copper covered with borax may be first applied to the body, then a strip of molybdenum, then another strip of copper and finally the working part. These parts are heated in an electric furnace to 1100‹ C. Inserts of tough metal coated on both surfaces with soldering metal and flux may be prepared and stocked for use as required.
Patent GB-699412-A (GB)
Title: Improvements relating to diazotype processes and materials for producing photomechanical printing plates
IPC: F21V17/02
Filed: 1950-07-21
Abstract: Amides of diazonaphthol-sulphonic and carboxylic acids corresponding to the formul  <FORM:0699412/IV (b)/1> in which R stands for the residue of 2-diazonaphthol- (1) or 1-diazo-naphthol- (2) and X, Y stand for hydrogen or substituents such as alkyl, aryl or aralkyl groups; and aliphatic or aromatic esters of the sulphonic or carboxylic acids of the 2-diazo-naphthol- (1) or 1-diazonaphthol- (2) are made by reacting the chlorides of these acids with organic hydroxy or amino compounds.  Suitable hydroxy compounds are phenols, naphthols, 1-nitro-2-naphthol, N-benzyl - p - aminophenol, N - acetyl - or N - benzoyl - 1,5 - or - 2,8 - aminonaphthol, hy - droxyphenanthrenes, 2 - hydroxy - chrysene and hydroxynaphthimidazoles; and the amines may be N - methylaniline, N - ethylnaphthyl - amine, 2,4 - dichloraniline, p - phenetidene, p - aminodiphenylamine, aminofluorene, amino - diphenylene oxide or dodecylamine.  The sulphochlorides concerned may be made by action of chlorsulphonic acid on the corresponding acids. Examples, as enumerated, describe reaction products of 2 - diazo - naphthol - (1) - 5 - sulphochloride or 2 - diazo - naphthol - (1) - 4 - sulphochloride with (1) 1 - benzoylamino - 5 - hydroxynaphthalene, 2 - benzoylamino - or 2 - acetylamino - 8 - hydroxynaphthalene; (2) 71 - hydroxy - 1,2 - naphthimidazole; (3) 2 - hydroxychrysene; (4) phenol; (7) 3 - benzoylamino - 1 - phenol; (8) N - methyl - 2 - hydroxycarbazole; (9) 3 - hydroxy - diphenylene oxide; (10) 2,4-dichlorophenol, N-methylaniline; (11) p - aminodiphenylamine, b - naphthylsulphonic acid; (12) 4 - aminobenzophenone; (13) 2 - amino - fluorene; (14) dodecylamine; (15) b  - naphthylamine; (16) a  - naphthol; (19) 2 - hydroxyfluorene; (20) b  - naphthylamine, p - xylidine; (22) methyl - glycineethylester; (23) p - phenetidine; (24) p - toluidine; (26) p - cresol, p-nitrophenol.  Example 5 describes preparation of 1-diazonaphthol-(2)-6-carboxylic acid anilide by diazotizing 1 - amino - 2 - hydroxy - 6 - naphthoic acid anilide.ALSO:The chlorides of sulphonic or carboxylic acids of 2-diazo-naphthol-(1) or 1-diazo-naphthol-(2) are reacted with 1- or 2-hydroxyanthraquinone.
Patent GB-658012-A (GB)
Title: Improved pedal-propelled amphibious vehicle
IPC: B63H16/20
Filed: 1949-07-12
Abstract: 658,012. Water craft. MEZZANO, A. July 12, 1949, No. 18367. [Class 113 (ii)] An amphibious vehicle comprises a frame 1, two side floats 24, a seat 13, wheels for land drive and means for propelling the vehicle on the water driven by pedals 12 actuating the driving-wheel on road drive, a steering mechanism for road drive serving as a rudder on the water and means for varying the position of the floats with respect to the frame in order to vary the depth to which the vehicle is submerged between two extreme positions. The vehicle is propelled through the water by vanewheels 9 provided on the ends of a crank-shaft 8, rubber tyres 10 being provided for land drive. Steering is effected by a rear-wheel 7 controlled by a hand-wheel 17 through a flexible transmission 20. The floats 24 are connected to the frame 1 by bell-crank levers 23, rotation of which raises and lowers the floats. Alternatively, as shown in Fig. 5, the floats may be articulated at their ends about pivots 33 to two cross-members 34, 35 secured to the frame. Each float is provided at its centre with two arms 36 (Fig. 7) having articulated to their upper ends levers 38 horizontally displaced by a screw 41 rotation of which is effected by a hand wheel 42. Two drums 27 are keyed on to the crank-shaft 8 and support two flexible endless tracks 28 which carry vanes 29 and are wound on two drums 30 pivoted to the frame. Two disc wheels 32 are connected to the drums 27 for land drive.
Patent GB-652245-A (GB)
Title: Improvements in insecticidal compositions and in their manufacture
IPC: C07C23/36
Filed: 1947-07-12
Abstract: Dichlorodihydronaphthalene is prepared by passing chlorine into an aqueous medium containing suspended naphthalene and also a hydroxide of an alkali metal, alkaline earth metal, or of magnesium, zinc, or aluminium.  It is preferred to operate in presence of light and at temperatures up to 44 DEG  C.  Some tetrachlorotetrahydronaphthalene formed is separated, e.g. by cooling.  The product may be stabilized by addition of an alkali, or preferably a water-insoluble hydroxide such as of zinc, calcium, magnesium or aluminium.ALSO:An insecticidal composition is prepared by the admixture of dichlorodihydronaphthalene with a finely divided inert solide, or a soap, or a dispersing agent, or a vegetable oil, or a vegetable oil mixed with a hydrocarbon solvent, or in the form of an aqueous emulsion.  The inert solids may be talc, calcium carbonate, gypsum or clay; an alkaline salt or an alkali, such as the hydroxides of calcium, magnesium, zinc or aluminium, may be added as a stabilizers. The dispersing agent may be a metal salt of a sulphonated organic acid.  Other insecticides may be present.  The Specifications as open to inspection under Sect. 91, comprises the statement that the dichlorodihydronaphthalene may be employed in solution in an organic solvent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-856045-A (GB)
Title: Improvements in or relating to circuits for triggering synchronised oscillators
Inventor: GOFF PAUL FREDERICK
IPC: H04N5/10
Filed: 1956-06-15
Abstract: 856,045. Pulse discriminating circuits. PLESSEY CO. Ltd. June 17, 1957 [June 15, 1956], No. 18638/56. Class 40(6). The discrimination between the line and frame synchronizing pulses of a television waveform is effected by a single non-linear element which also isolates the line oscillator from the synchronizing pulse source. Fig. 1 shows a pulse discriminating circuit in which the combined line and frame synchronizing pulses of a conventional television signal are applied to the grid of tube V1. The line pulses are taken from the anode and applied to a conventional line oscillator circuit. The frame synchronizing pulses are integrated by the circuit R2, Cl so that even and odd frames produce a waveform at the junction of resistors R1 R2. as shown in Fig. 3. The residual line pulses in this waveform do not cut off rectifier MR1 and pass via capacitor C2 to chassis. The integrated frame pulses cause rectifier MR1 to be rendered non-conductive within the limits determined by its bias which is determined by the values of resistors R3, R4 and the clipped signal is passed via capacitor C3 to trigger the blocking oscillator circuit comprising a triode V2. At the end of the period during which triode V2 conducts the transformer TR1 rings. The first positive half-cycle of oscillation applied to rectifier MR1 via R5 and C3 from the anode of tube V2 cause it to conduct heavily thus short circuiting any residual line pulses to chassis. Subsequent cycles of oscillations are of insignificant amplitude since the circuit of transformer TR1 is heavily damped.
Patent GB-441270-A (GB)
Title: Improvements relating to coin operated gas and electricity meters and like mechanisms
IPC: G07F15/02
Filed: 1934-05-12
Abstract: 441,270. Prepayment mechanism for meters. UNITED GAS INDUSTRIES, Ltd., 51, Lincoln's Inn Fields, SMITH, E. W., 186, Kennington Park Road, and CHARLES, A., Meter Works, Rowan Road, Streatham Vale, all in London. May 12, 1934, No. 18642. Divided out of 438,520. [Class 27] Coin action, multiple coin with delivery proportionate to value of coin. -A meter prepayment mechanism adapted for operation by different coins and giving proportionate delivery comprises a pair of quantity wheels c, d, selectively actuated by a rotary coin pocket, and connected through an epicyclic gear with a sun-wheel f of a differential quantity mechanism. Movement is transmitted from this sun-wheel to a driven sun-wheel g operating the commodity' control member with a step-up ratio, the sun-wheel f being of greater diameter than the sun-wheel g, and the connected planet pinions h<3>, h<4> being of corresponding different diameters.
Patent GB-922770-A (GB)
Title: Improvements in and relating to distributors for artificial manure
IPC: A01C15/00
Filed: 1960-05-26
Abstract: 922,770. Manure distributers. J. MURPHY. May 26, 1961 [May 26, 1960], No. 18668/60. Class 6(1). A manure distributer of the kind comprising a hopper 1 with a bottom outlet controlled by the action of a bar-like shutter 4 is characterized in that an arm 6 is connected to the shutter 4 and extends between the tractor rear wheels and is oscillated by means of a cam roller 16 attached to the tractor power shaft 9. As shown the arm 6 is mounted in a bracket 7 secured to the back of the tractor and is movable between abutments 10, 11. The roller 16 is mounted on a crank 13 removably attached to the power shaft 9. The arm 6 may be raised clear of the roller by means of a lever 20 on the tractor. Specification 734,428 is referred to.
Patent GB-293573-A (GB)
Title: Improvements in bedsteads, cots, and like articles of furniture
IPC: F16B12/58
Filed: 1927-07-14
Abstract: 293,573. Evans, R. E. L., and Evans, R. Y. K. N. July 14, 1927. Joints.--In a furniture joint of the kind in which the dovetail members are secured by a hand-operated slidable bolt, the bolt e is carried upon the underside of the plug member d<2>, d<5>, and when in operation overlaps the underside of the socket member a<2>, as.
Patent GB-449842-A (GB)
Title: Improvements in and relating to bushing insulators for electric apparatus
IPC: H01B17/34
Filed: 1935-06-29
Abstract: 449,842. Insulators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. June 29, 1935, No. 18683. Convention date, June 30, 1934. [Class 36] To facilitate the removal of insulating liquid from a lead-in bushing 10 of the kind wherein the space 24 between the lead-in conductor 21 and the inner wall of the bushing is normally wholly or in part filled with insulating liquid 28, the lead-in conductor is formed as a tube, the lower end of which is in open communication with the space 24. The upper end of the conductor is sealed from the space 24 by a cap 19 and communicates with outlet aperture 25 through which the insulating liquid is discharged by admitting gas under pressure to the space 24 through an inlet aperture 26 formed in the cap 19 above the normal level of the liquid. The outlet and inlet apertures 25, 26 are normally closed by plugs 29, 30 as shown in Fig. 2.
Patent GB-1261161-A (GB)
Title: Improvements in or relating to channel type secondary electron multipliers
IPC: H01J43/24
Filed: 1969-01-14
Abstract: 1,261,161. Electron multipliers. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 14 Jan., 1969 [18 Jan., 1968], No. 18697/70. Divided out of 1,257,734. Heading H1D. An electron multiplier comprises a pair of parallel plates made of or coated with resistive secondary emissive material and connected to a potential source which thereby produces an axial electric field, and the plates are twisted to provide a transverse field thereby increasing the number of impacts and the multiplication factor.
Patent GB-1012666-A (GB)
Title: Improvements relating to brackets
Inventor: NEALE DAVID WARWICK
IPC: B60Q1/04
Filed: 1963-05-11
Abstract: 1,012,666. Hinges and Pivots. RAYDYOT Ltd. March 10, 1964 [May 11, 1963], No. 18739/63. Heading E2F. [Also in Division F4] A bracket for mounting an accessory lamp on a vehicle comprises a first part carried by the lamp and hinged to a second part about one axis, the second part being U-shaped with two limbs connected by a curved portion having an elongated slot to receive a bolt passing through a third part having a recess to accommodate the third portion. In the form shown, the first part consists of a plate 11 having projecting ears 13 which may be united by a cylindrical part 14. Limbs 15 of a U-shaped element fit on either side of the ears 13, a bolt 17 passing through the  ears and the limbs. The base 20 of the U-shaped element has a slot 21 through which passes a bolt 26 securing it to a plate 22 having a curved recess 24 fitting the curve of the base 20.
Patent GB-931501-A (GB)
Title: Improvements relating to the lining of hearths of industrial furnaces or ovens
IPC: F27D1/00
Filed: 1960-05-27
Abstract: 931,501. Furnace hearths. ZAVODY V.I. LENINA PLZEN, NARODNI PODNIK. May 27, 1960 [May 28, 1959], No. 18746/60. Drawings to Specification. Class 51 (2). The hearth of a furnace into or through which the charge is to be moved without the use of sliding tracks is constructed of bricks laid fanwise in a series of arcs the centre of curvature being at a locus opposite the direction of travel of the charge, Fig. 1 (not shown). Alternatively, rhomboid bricks are arranged in zigzag fashion, Fig. 2 (not shown).
Patent GB-1024318-A (GB)
Title: Process for the selective hydrogenation of water-miscible acetylenic alcohols
IPC: B01J23/40
Filed: 1964-05-06
Abstract: Water-soluble acetylenic alcohols are selectively hydrogenated to olefinic alcohols in the presence of a palladium-base catalyst, if desired on a catalyst support, and in the presence of an aqueous solution of a zinc salt in which the amount of zinc salt is between 0.01% and 5.0% by weight based on the weight of the acetylenic alcohol.  Ammonia or an amine may additionally be present in an amount not higher than 0.5% by weight based on the weight of the acetylenic alcohol.  Examples are given.
Patent GB-153369-A (GB)
Title: Improvements in and relating to a combined eye shade and shield
IPC: G02C9/02
Filed: 1919-07-31
Abstract: 153,369. Crossley, N. July 31, 1919. Accessories.-A combined eye sbade and protector of the type in which the protector is pivoted to the shade is provided with readily detachable lenses or glasses. The shade 10, preferably formed of tinted celluloid, is of crescent shape, and is held on the head by a strap 11, or may be constituted, as shown in Fig. 5, by the peak of a cap. The protector 12, of celluloid or other material, is formed with tabs 14 pivoted at 15 to the shade 10, and has a convex upper edge 13. The shape of the parts is such that the protector will lie closely against the under side of the shade when not in use, or may be pulled down into operative position, as in Fig. 5, so that the convex edge 13 makes close contact with the shade and holds the protector in place. The eyepiece frames 16 are formed with swinging sections 17 so that the lenses, or coloured or plain glasses 20, may readily be removed and changed. The sections 17 are normally held closed by knobs 18, Fig. 4, engaging sockets 19.
Patent GB-632981-A (GB)
Title: Improvements in or relating to a windshield wiper
IPC: B60S1/40
Filed: 1947-03-18
Abstract: 632,981. Windscreen - wipers. TRICO PRODUCTS CORPORATION. March 18, 1947, No. 19032/49. Convention date, March 19,1946. Divided out of 632,953. [Class 138(i)] A wiper blade is attached to its actuating arm by means of a clip connected to the blade and having a convex inner surface, such convex surface having a groove or recess extending over part thereof, the wiper arm having an arcuate end-portion adapted to fit the convex surface and a lug to engage the groove or recess, the arm being held in contact with the convex surface by a spring clip. As shown, a clip 9 is connected to a bracket 12 fast with the blade by means of a pivot pin 11 extending parallel to the blade. The clip 9 has a convex surface 23, half of which is grooved at 27. The curved end 24 of the actuating arm is introduced through an opening 25, and its end has a lug 26 which engages the groove 27 and is held therein by the bowed spring 20. The latter also has ends 21 which engage annular grooves 22 in the pivot pin 11 to locate same, Rocking movement of the blade about the pin 11 is limited and cushioned by the provision of a rubber pad 32, against which the' lateral edges 30 of the clip 9 impinge. Specification 632,953 is referred to.
Patent GB-1182623-A (GB)
Title: Improvements in and relating to methods of Mounting Electrical Components
IPC: H05K3/34
Filed: 1967-04-25
Abstract: 1,182,623. Electric couplings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 25 April, 1967 [28 April, 1966], No.19037/67. Heading H2E. [Also in Division H1] Conductors 3, 5, 7 extending from an electrical component 1, such as a transistor encapulated in a synthetic envelope, each include a locally thickened part and are arranged so that as the component 1 is plugged into perforations in a printed circuit board 15 at least one of the conductors 3, 5, 7 is elastically deformed. On insertion of the conductors right through the board, the thickened parts, which are slightly narrower than the perforations, spring out to engage the bottom surface 25 of the board 15. The conductors 3, 7 may be slightly angularly displaced as shown, or the third conductor 5 may be set at a small angle to the plane of the conductors 3, 7. The conductors may be soldered to the board.