baber/WOPTO huggingface dataset:
Patent GB-1335373-A (GB)
Title: Tower cranes
IPC: B66C13/30
Filed: 1970-11-03
Abstract: 1335373 Control of A.C. motors RICHIER 3 Nov 1970 [3 Nov 1969] 52327/70 Heading H2J The jib of a tower crane is rotated by a wound rotor induction motor 11, Fig. 2, working against an eddy current brake 13 to produce the torque speed curve DEFGHIJKLM, Fig. 3. The motor is supplied via reversing contactors 21, and is controlled from 4-position speed controller 19, which via speed detector 22 sensing rotor voltage controls device 23 which alters the motor torque-speed characteristic by inserting resistors or a thyristor circuit, in its rotor circuit. For motoring notches 1-4 of controller 19, the excitation voltage of the brake 13 is controlled via voltage control contactors 24 and adjustable variable voltage regulator 25 containing thyristors, and for notch 0 via adjustable regulator 28 comprising a network of resistors and capacitors which provides a continuous rate of change of brake excitation voltage, of ramp form to give the braking characteristic C. Actuation of a mechanical locking brake (14), Fig. 1 (not shown) disconnects the excitation from brake (13). Notching up.-For notches 1-4 respectively, in either direction the torque speed characteristic DEFGHIJKLM is obtained as follows: Motor characteristic 1 is combined with brake characteristic A to give operating characteristic 1a; Motor characteristic 1 is combined with brake characteristic B to give operating characteristic 1b; Motor characteristic 1 alone; Motor characteristics 2, 3 with transition from characteristic 2 to 3, performed automatically by the predetermined speed detector 22, or a time delay relay, which removes resistors or thyristors from the rotor circuit. For fast notching up, the brake excitation does not take place, giving characteristic DIJKLM. Notching down reverses the above sequence except that, upon notching from 4 to 3, the motor characteristic changes directly from 3 to 1. Notch 0 gives a ramp excitation of brake 13 via regulator 28 with no motor supply. The mounting of the system in the tower crane is displayed in Fig. 1 (not shown). More than three motor operating characteristics may be used.
Patent GB-1124649-A (GB)
Title: Method and apparatus for cutting into a surface layer, for example, paving
IPC: E01C23/09
Filed: 1965-12-09
Abstract: 1,124,649. Scarifiers. A. G. BODINE. 9 Dec, 1965, No. 52425/65. Heading E1G. A machine for cutting into paving 13 comprises a vehicle 10 on which is mounted an elastic bar 41 vibrated with a standing wave S having a plane of vibration substantially parallel with the forward motion of the vehicle. The bar 41 is carried through two pins 42, located at nodes N, on support 26 vertically adjustable between operative and transport positions by hydraulic cylinder 37. A cam driven piston 92 may provide small vertical oscillations of the support 26. The bar 41 is vibrated towards an antinode V<SP>1</SP> by opposed gyrating vibrator weights 53, to produce another antinode V<SP>11</SP> at b where the bar contacts the paving 13 through serrations 44.
Patent GB-1117140-A (GB)
Title: Method for producing a plastics container having a recessed portion, and plastics container thus produced
Inventor: SCHWEIGER JOSEF
IPC: B65D21/02
Filed: 1966-11-23
Abstract: 1,117,140. Plastics containers. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 23 Nov., 1966, No. 62456/66. Heading B8D. [Also in Division B5] A plastics container 10 is moulded with a recessed portion 11 (see Division B5), which may serve as a pocket for receiving a second container 12. A handle 13 is fitted after moulding. The container may be moulded by injection, compression or blowing.
Patent GB-1097020-A (GB)
Title: Graft blend polymers
IPC: C08F255/02
Filed: 1964-12-29
Abstract: A graft blend polymer is prepared by polymerizing an ethylenically unsaturated monomer consisting of at least 80% by weight of vinyl halide in the presence of either (i) a copolymer of ethylene and another olefin, the copolymer comprising from 40 to 75% by weight of polymerized ethylene, or (ii) a copolymer of an olefin and an alkyl acrylate or methacrylate; the polymerization product being a mixture of graft polymer, polymer of said ethylenically unsaturated monomer and, possibly, a minor proportion of ungrafted (unchanged) copolymer. Said other olefin of copolymer (i) or olefin of copolymer (ii) preferably contains up to 8 carbon atoms, and in the latter copolymer the alkyl group of the ester component preferably has up to 12 carbon atoms. Monomers which can be used together with the vinyl halide for grafting include vinylidene halides, vinyl esters, acrylonitrile, acrylates, methacrylates, maleates and fumarates; vinyl chloride is the preferred vinyl halide.  Polymerization can be effected in bulk, solution or emulsion.  The preferred procedure comprises dispersing the copolymer in the monomer, adding the mixture in the absence of oxygen to water which contains a suspending agent (e.g. methyl cellulose or polyvinyl alcohol) and has been heated to 20-100 DEG C, and agitating the resultant mixture at 10-80 DEG C. until polymerization is complete; this procedure being generally effected under pressure.  Suitable catalyst which may be used include peroxides, hydroperoxides, percarbonates, perborates and azo compounds; polymerization can also be effected using irradiation. Chain regulators such as chlorinated hydrocarbons, alcohols and aldehydes may also be present.  To the graft blends may be added additional components, e.g. stabilizers such as Ba/Cd soaps, fillers, colourants, processing aids, lubricants and coplasticizers; such components include other polymers, e.g. vinyl halide homopolymers and copolymers, polyvinylidene halide, polymethyl methacrylate, styrene-acrylonitrile copolymers, methylstyrene - acrylonitrile copolymers, methylstyrene - styrene - acrylonitrile copolymers, styrene-methyl methacrylate copolymers and butadiene - acrylonitrile copolymers, and also epoxy and chlorinated paraffin components. The graft blends are suitable for preparing rigid and semi-rigid sheets, tubes, pipes, wire coatings and moulded objects, and can be reinforced with asbestos fibres.
Patent GB-1452504-A (GB)
Title: Method of making microcapsules
IPC: B01J13/16
Filed: 1973-11-15
Abstract: 1452504 Microencapsulation WIGGINS TEAPE Ltd 1 Nov 1974 [15 Nov 1973] 53170/73 Heading B8C Microcapsules having polyurethane walls enclosing a liquid core are made by preparing a first liquid phase comprising the core liquid, an isocyanate and a polyol which are capable of reacting to form a polyurethane and dispersing this liquid phase in another liquid phase with which it is substantially immiscible and which contains a catalyst or initiator for the polyurethane-forming reaction, e.g. an amine. Preferably, the first liquid is a hydrophobic liquid and the second is water and the microcapsules may contain conventional materials, e.g. chromogens, which render the product useful for making record transfer sheets.
Patent GB-1275813-A (GB)
Title: Transmitter for positively modulated television signals
IPC: H04N5/38
Filed: 1969-10-30
Abstract: 1275813 Keying oscillators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 Oct 1969 [31 Oct 1968] 53201/69 Heading H3R In a modulation system for television signals the carrier signal oscillator 6 is keyed by the synchronizing pulses to interrupt the oscillation during each synchronizing pulse. The video and synchronizing pulses are applied at 12. The synchronizing pulses being separated and applied via amplifier 13 to key a Gunn oscillator 6. The video signal is fed via a further amplifier 14 to a further Gunn device 10 which is biased below its oscillation threshold, and which acts as a variable impedance modulator across the output of a directional coupler 8 is the oscillator 6 output circuit. The Gunn device 10 is mounted in a waveguide, Fig. 2 (not shown).
Patent GB-1440769-A (GB)
Title: Method of and a circuit arrangement for controlling the flow of oil
IPC: F16D13/72
Filed: 1973-11-16
Abstract: 1440769 Cooling friction clutches ZAHNRADFABRIK FRIEDRICHSCHAFEN AG 16 Nov 1973 [17 Nov 1972] 53274/73 Heading F2C A friction clutch cooling circuit comprises a pump 1 driven by the clutch input and having a delivery which increases with speed, two flow paths 6, 8 each containing a restriction 7, 10, a pressure limiting valve 9 which maintains a constant pressure in and thus a constant flow through the first path 6 whilst the liquid metered through the pressure limiting valve 9 to the second path 8 increases with speed to provide a speed-responsive flow through the second path 8. A line 12 provides clutchengaging servo pressure whilst a line 11 provides liquid for lubricating or cooling change speed gearing associated with the clutch.
Patent GB-1138550-A (GB)
Title: Method and apparatus for racking sterile liquids, especially carbon dioxide-containing beverages, into sterile bottles made of synthetic material
IPC: H01H1/44
Filed: 1966-11-29
Abstract: 1,138,550. Bottle filling, capping and washing; carton filling machines. INTERSTABELLA. A.G. 29 Nov., 1966 [13, Dec., 1965], No. 53283/66. Headings B8C and B8T Sterile liquid, e.g. an effervescent beverage, is bottled by apparatus comprising a plant 3 to produce plastics &c. bottles, a pneumatic conveyer 9, and a bottle filling and capping machine 11, the filled bottles then being put into cartons 26. The bottles, produced at a high temperature and therefore sterile, are moved by sterilized suction or compressed air along the conveyer 9. The bottles may be rinsed in sterilized air, carbon dioxide or nitrogen before and/or after conveying but before filling, using a rinsing station 6, detailed in Fig. 3, supplied with suction at 21, low pressure gas at 24, and compressed gas at 19 to eject the bottle to a machine 11 comprising stations for filling 41, Fig. 4, and capping 42. Figs. 6 and 8 show alternative arrangements for the evacuator 48, pre-rinser 49 (Fig. 6 only), filler 50, capping station 51, and apparatus 52 to transfer the bottles to a carton 26. The bottles move ten abreast between the filling, closing &c. stations by intermittent motion. The pre-rinsing and filling apparatus 6 and 11 may be enclosed in a sterile atmosphere.
Patent GB-1135452-A (GB)
Title: Improvements in or relating to furnace chargers
IPC: C21C5/46
Filed: 1965-12-15
Abstract: 1,135,452. Furnace charging machines. WESTINGHOUSE AIR BRAKE CO. 15 Dec., 1965 [15 Dec., 1964], No. 53305/65. Heading F4B. A furnace charger consists of a generally U-shaped trough (10, Fig. 3, not shown), which is supported for longitudinal movement in a horizontal direction between an extended charge delivery position (Fig. 1, not shown), and a retracted charge receiving position, the supporting arrangement consisting of rollers 29 which depend downwardly from each side of the trough and run along and within U-shaped tracks, and a shaker drive arrangement which is engageable with the trough when the latter is in its extended position to facilitate the transfer of charge from the trough to a furnace. Longitudinal movement of the trough is effected by means of a piston 70 and cylinder 53, of which the cylinder is secured to the underside of the trough and the free end 67 of the piston is secured to an abutment 65 depending upwardly from one end of a shaker drive bar 41. Application of air to the cylinder results in the trough moving from one to the other of its two positions. When in its extended position, a bore 61, formed in a saddle carried by the trough, comes into engagement with a similar bore 62 formed in the one end of the drive bar 41, this permitting the saddle to be connected to the bar by a pneumaticallyoperated connecting pin (63, 90, Fig. 3), subsequent to which, the trough may be oscillated by a crank drive (80, 83, 86, 87, Fig. 2, not shown), operative upon the other end of the drive bar. To ensure proper alignment of the two bores, the shaker drive bar 41 is supported between two sets of rollers 40, 49, the former being secured to the trough frame structure 37 and the latter being carried by the trough and being disposed in proximity to the saddle.
Patent GB-1440766-A (GB)
Title: Cam
IPC: F16H25/12
Filed: 1972-11-20
Abstract: 1440766 Cams; converting rotary to reciprocating motion COURTAULDS Ltd 19 Nov 1973 [20 Nov 1972] 53460/72 Heading F2K A plastics continuous cylindrical scroll cam I, for traversing winders of a textile yarn winding machine, comprises a continuous groove 2 having a configuration which provides at least two different to-and-fro-paths 3, 4 along and around the cam 1 for a roller follower (not shown) engaged in the groove, and which paths 3, 4 the roller follower will traverse successively when the cam is rotated, the two paths providing at least two pairs of positions 5, 7 and 6 8 at which the axial direction of movement of the follower is reversed, the relative reversing positions of each of the pair 5, 7 and 6, 8 being displaced 180 degrees around the cylinder with respect to one another, and the said positions of at least one pair (or both pairs as shown) being axially displaced by a short distance 9 and/or 10 along the axis AA of the cam 1. The cylindrical cam 1 may be formed from a synthetic polyamide impregnated with molybdenum disulphide. The cam groove 2 may be of a divergent cross-sectional shape with the roller follower received in the upper wider part of the groove, an elongated shoe-like portion received in the lower narrower part of the groove serving to guide the roller follower across the various crossing intersections of the groove 2. The arrangement is such that the yarn guide (not shown) attached to the cam follower (not shown) is caused to lay the ends of successive layers of yarn successively at two different positions along the axis of the package thus forming a package with soft ends less susceptible to damage &c. if knocked, and additionally, to prevent a phenomenon known as "webbing" which in the case of some yarns can occur in the conventional method of attempting to build up right-angle corners on a package.
Patent GB-1483929-A (GB)
Title: Paper-sizing agents
IPC: C08F22/04
Filed: 1974-12-11
Abstract: 1483929 Salts of esterified copolymers BAYER AG 11 Dec 1974 [11 Dec 1973] 53565/74 Heading C3P [Also in Division D2] Anionic paper sizing compositions comprise aqueous or aqueous-alcholic solutions of an alkali metal, aliphatic amine or ammonium salt of a substantially equimolar copolymer of diisobutylene and a maleic acid semi-ester with a C 1-20  aliphatic or C 5-6  cycloaliphatic monoalcohol, said copolymer being obtained either by direct copolymerization of the ester with diisobutylene or by esterification of 10-100 mol. per cent of the anhydride groups of a diisobutylene/maleic anhydride copolymer. In examples, such esterification is effected with methanol, isopropanol, isoamyl alcohol, stearyl alcohol or cyclohexanol, and salt formation is effected with ammonia.
Patent GB-1189076-A (GB)
Title: Metallic Framework Element
IPC: E04C3/40
Filed: 1968-11-12
Abstract: 1,189,076. Framework element and framework units erected therewith. ETABS. DOLLEANS CONSTRUCTIONS ET EXPLOITATIONS AGRICOLES ET INDUSTRIELLES. 12 Nov., 1968 [12 July, 1968], No. 53662/68. Headings E1K and E1W. A framework element comprises a substantially I-section girder 1 having an undulating web 30 and converging flanges 22, 20 (Fig. 6), a plate 39 is welded to the wider end of the web which plate may have holes therethrough. A plate 40 may be connected to the narrower end of the web. Several such elements may be connected together to form a portal frame Fig. 5 or columns. The s.upport 9 Fig. 3 may be fixed to foundations and one end of a column formed from units 1 may be inserted therein and hoisted into position, pivoting about a bolt through the element and hole 19a of support 9. Different values of angle α and the angle between plates 39 and 22 are given.
Patent GB-1377397-A (GB)
Title: Method for teh promotion of fruit abscission
IPC: C07D295/215
Filed: 1971-11-18
Abstract: 1377397 Plant growth regulation using thioureas CIBA-GEIGY AG 18 Nov 1971 [19 Nov 1970] 53676/71 Heading C1B A method for promoting the abscission of fruit from a tree or shrub utilizes as active ingredient a thiourea of the formula wherein: R 1  represents an unsubstituted phenyl group; a phenyl group substituted by one or more halogen atoms or by C 1  to C 4  alkyl, C 1  to C 4  alkoxy, C 1  to C 4  haloalkyl, phenoxy or mono- or poly-chloro-substituted phenoxy groups; an allyl group; a benzyl group; a phenethyl group; a norbornenyl group; or an at least partially hydrogenated 4,7-methanoindan-5- yl group; R 2  represents a hydrogen atom; a C 1  to C 4  alkyl group; a C 1  to C 4  alkoxy group; or an allyl group; and R 3  represents a hydrogen atom; an unsubstituted or substituted phenyl group; a C 1  to C 4  alkyl group; an unsubstituted or chlorosubstituted C 2  to C 4  alkenyl group; a di-(C 1  to C 4  alkyl) amino group; or a furfuryl group; or R 2  and R 3 , together with the nitrogen atom to which they are attached, represent a heterocyclic system with 5 or 6 ring atoms. The thiourea suitably is applied to the tree, shrub, or locus thereof, up to 20 days before harvesting the fruit.
Patent GB-1318717-A (GB)
Title: Transport system
IPC: B60L5/40
Filed: 1970-11-11
Abstract: 1318717 Transport system MERLIN GERIN 11 Nov 1970 [2 Dec 1969 11 Sept 1970] 53700/70 Addition to 1243467 Heading B7L A transport system as claimed in claim 1 of the main Patent comprises a current collector 14 having (see Fig. 3) a body portion 14A carrying a respective longitudinally extending outwardly open channel member 30 associated with each feed conductor 12, each channel member presenting a guide 26 in which is slidably mounted a contact shoe 22 which is urged into contact with the conductor, and also presenting a pair of screen members 39, 40 of insulating material between which the conductor is disposed and which overlap the conductor in such a way as to prevent disengagement of the collector from the conductor. Each conductor present a pair of lips 44, 46 of insulating material which overlap the screen members. As shown in Fig. 1 the collector is suspended from the vehicle 110 by two legs 118, 120 and tie rods. Springs, see Fig. 4 (not shown), urge the tie rods into alignment with the vehicle axis, and resiliently suspend the tie rods from the legs. The vehicle runs along the track 114 and is supported on an air cushion.
Patent GB-1094149-A (GB)
Title: Improvements in or relating to signal generation
IPC: H03B21/00
Filed: 1965-12-17
Abstract: 1,094,149. Transistor frequency generating circuits. HATTORI TOKEITEN KABUSHIKI KAISHA. Dec. 17, 1965 [March 6, 1965], No. 53706/65. Heading H3T. Low-frequency oscillations are obtained by causing a piezo-electric crystal to oscillate simultaneously at both its fundamental and an overtone frequency and by rectifying the envelope of the oscillations so produced. The collector circuit of a transistor comprises tuned circuits 46, 48 resonating respectively at the fundamental and overtone frequencies, the transistor being back-coupled by means of coupling winding 60 and the crystal 58 so that oscillation occurs simultaneously at both frequencies. The envelope of the waveform at the collector is rectified by a peak rectifier 66 to obtain the low frequency. In a second embodiment the oscillator is of the Colpitts type, the desired resonance frequencies of the crystal being selected by means of variable capacitors connected respectively between base and emitter and collector and emitter of the transistor (Fig. 6, not shown).
Patent GB-1368262-A (GB)
Title: Constant speed ratio frictional transmission
IPC: F16H13/08
Filed: 1972-11-13
Abstract: 1368262 Friction gearing DEFENCE SECRETARY OF STATE FOR 13 Nov 1972 [19 Nov 1971] 53751/71 Heading F2Q In planetary friction gearing comprising a sun roller 6 integral with a shaft 4, planet rollers 11 mounted in a carrier 10 secured to a shaft 5, and an annulus 18, the drive is established by the introduction of hydraulic pressure to the outer surface of the annulus 18, which shrinks the annulus into frictional contact with the planet rollers 11 and the planet rollers 11 into frictional contact with the sun roller 6. The hydraulic fluid is introduced through a radial bore 23 in a casing 1. The planetary rollers 11 are journalled in bearings 13 which are engaged in radial slots 14 in the carrier 10. Lubricant is pumped through a bore 27 to a bore 24 from which it passes through a plurality of radial bores to bearing surfaces and roller surfaces.
Patent GB-1245799-A (GB)
Title: Shaft tempering and straightening machine and a method of straightening workpieces
Inventor: WEWER ILSE
IPC: B21D3/04
Filed: 1968-11-19
Abstract: 1,245,799. Cooling metal shafts. I. WEWER. Nov. 19, 1968 [Nov.27, 1967; May 11, 1968], No. 54829/68. Heading C7N. [Also in Division B3] A shaft tempering and straightening machine comprises a container 100 for a tempering medium, rotatable carrier 201 of triangular section in said container with three surfaces mounted in two bearings, 285, 275 on each of which surface a pedestal 202 is mounted, the pedestals carrying two driven centres 301 to receive a shaft to be tempered and straightened, there being a straightening unit for acting on each shaft held between each of the two opposite spaced-apart centres. Each straightening unit comprises three rolls 415, 416 and 417 the upper roller 417 being connected via linkage 422, 424 to a hydraulic cylinder 408 controlled by an electro-magnetic valve and the straightening units not in operation are separated from the control system by hydraulic quick release couplings. The container has a protective hood 102 with a fume extraction pipe 103. The method consists in the heated shaft being first straightened and then rotated by the carrier into the tempering medium so that any stresses are balanced and relieved the straightening operations being concluded by retracting the lever rollers 415, 416 or the centres 301.