baber/WOPTO huggingface dataset:
Patent GB-621566-A (GB)
Title: Pigment compositions
IPC: C09C1/62
Filed: 1946-02-13
Abstract: Finely divided metallic particles are coated with solid polyethylene. Specified metals are aluminium, steel, copper, bronze, magnesium, lead, zinc, nickel and the nickel-iron alloy known as Permalloy.  The particles may be in the form of flakes or granules.  The metallic particles may be coated by stirring into a hot solution of normally solid polyethylene and the mixture cooled whilst stirring.  The solvent such as xylene, methylethyl ketone, petrol or high-flash naphtha may be removed by evaporation and the coated particles may be dispersed in an organic solvent or in a film-forming material other than polyethylene, such as drying oils, varnishes, rubber and synthetic rubber.  Specification 471,590, [Group IV], is referred to.ALSO:Finely divided metallic particles are coated with solid polyethylene.  Specified metals are aluminium, steel, copper, bronze, magnesium, lead, zinc, nickel and the nickel-iron alloy known as Permalloy.  The particles may be in the form of flakes or granules. The metallic particles may be coated by stirring into a hot solution of normally solid polyethylene and the mixture cooled whilst stirring.  The solvent, e.g. xylene, methylethyl ketone, petrol or high-flash naphtha may be removed by evaporation and the coated particles may be dispersed in an organic solvent or in a film-forming material other than polyethylene such as polystyrene, polyisobutylene, ethyl cellulose, cellulose acetate, alkyd resins, polyvinyl chloride, polyvinyl acetate and interpolymers of vinyl chloride and vinyl acetate.  Films may be produced by extruding or calendering or dispersions in organic solvents may be spread over a glass surface coated with a stripping agent and the film dried and removed.  Specification 471,590 is referred to.
Patent GB-676466-A (GB)
Title: Improvements relating to weather-excluders and the like for doors and windows
Inventor: ISSIGONIS ALEXANDER ARNOLD
IPC: B60J10/08
Filed: 1950-02-22
Abstract: 676,466. Draught &c. excluders. MORRIS MOTORS, Ltd. Feb. 19, 1951 [Feb. 22, 1950], No. 4517/50. Class 20(iii). Doors and windows are sealed against draughts &c. by means of a rubber or like resilient strip having an integral attachment portion 1 with a continuous longitudinal approximately T-section groove 2 the mouth of which is expansible to enable the strip to be sprung on to a co-operating rigid retaining member 6 of substantially T-section which is slotted to embrace a metal supporting flange 8 extending around the door &c. opening and is secured to that flange. The figures show the application of the invention to vehicle doors. The groove 2 divides the strip into two oppositely curved limbs 3, 4, the latter forming an outer sealing element, and a similarly curved flap 5 rooted at the junction of part 1 and limb 3 serves as an inner sealing element. The stem 7 of the sheet metal retaining member 6 is slotted and the mouth flared. The member 6 is welded on to the flange 8 formed by welding marginal portions of cooperating side panels, e.g. 19, 9, of the vehicle. The application of the strip to the four sides of the surround and to the windscreen pillar is shown. Specification 675,687 is referred to.
Patent GB-1137034-A (GB)
Title: Improvements in or relating to electric conduit boxes
Inventor: THORSMAN OSWALD WILLY
IPC: H02G3/12
Filed: 1967-01-31
Abstract: 1,137,034. Conduit boxes. THORSMAN & CO. A.B. 31 Jan., 1967, No. 4595/67. Heading H2E. A conduit box has a plurality of spouts and is provided with a sealing element which fits in the box and covers the spouts. This allows the box to be installed in a wall which is being poured, the sealing element preventing ingress of the fluid concrete into the box through those spouts not connected to conduits. The sealing element which is of plastics may comprise an annular skirt portion 4 and an integral closure disc 5. The spouts may have internal flanges 8 to make sealing contact with the conduits. During installation the box which is of plastics material is clamped against the shuttering by a hook and screw bolt (Fig. 4, not shown).
Patent GB-348678-A (GB)
Title: Improvements in and relating to coil winding machines
IPC: H01F41/06
Filed: 1930-02-11
Abstract: 348,678. Cutting paper webs. OWEN, C. J. and AUTOMATIC COIL WINDER & ELECTRICAL EQUIPMENT CO., Ltd., Winder House, Douglas Street, London. Feb. 11, 1930, No. 4601. [Class 31 (i).] Guillotine machines.-In a machine for cutting paper strip, &c. the length severed and the cutting action are independently controlled by the machine operator. Paper g<4> from a roll g<3>, Fig. 1, passes to a constantly moving conveyer f against which it is pressed by an idle roller h<5> when a handle h on a spindle h<2> is in a raised position, the idler h<5> being supported in a frame h<4>, also on the spindle h2<SP>2> and being normally maintained clear of the paper. When the required length of strip has been fed, as estimated by the operator with the aid of adjustable pointers m, the handle h is depressed through the normal to the lowest position, during which action the idler h<5> is raised and a projection h<6>, also on the spindle h<2>, depresses the upper blade j<1> of shears j j<1>, a spring finger j<2>, Fig. 3, maintaining the paper in cutting position, a spring j<3> opening the blades after the cutting operation. A spring j<4> may be included to keep the upper cutting edge in cutting relation with the lower. The spring j<4> may have its upper end turned over to limit the upward movement of the blade j<1>. A stop k<2>, Fig. 4, on a lever k pivoted at k<1>, is raised into the path of the severed strip, and released when required. Specification 322,999, [Class 120 (ii), Spinning, twisting, &c.], is referred to.
Patent GB-289754-A (GB)
Title: Improvements in tobacco pipe scrapers or cleaners
IPC: A24F9/10
Filed: 1928-02-14
Abstract: 289,754. Atkinson, F. Feb. 14, 1928. Cleaners for tobacco pipes.- A scraper consists of a handle a and body b of stepped formation comprising cylinders of decreasing diameter with sharp under-cut lower edges g.
Patent GB-509337-A (GB)
Title: Improvements in and relating to anti-dazzle reflectors for lamps
IPC: F21S8/10
Filed: 1938-02-15
Abstract: 509,337. Vehicle &c. lamps. DIE TRICH, F. R. Feb. 15, 1938, No. 4710. [A Specification was laid open to inspection under Sect. 91. of the Acts, Aug. 19, 1938.] [Class 75 (iv)] An anti-dazzle reflector, more particularly for the headlamps of motor vehicles, comprises an ellipsoidal reflector 1 tending to project on one side of a plane containing the optical axis A-A<1>, a beam having a point or line of convergence lying in the optical axis, a hood 2 projecting from the reflector on the same side of said plane to a point beyond the point or line, of convergence and a lens or lens system which spreads the rays so that they converge on a transverse line or lines between the lens and hood. In the form shown in Figs. 1 and 2, the reflector is a semi-ellipsoid with a lamp at its focal point F. A cylindrical lens 13 ribbed vertically to form on it a series of sernicylindrical lenses 9 disperses the rays so that instead of converging to a point they converge on a line F2, Fig. 1. In a modified form, the reflector extends below the axis A-A<1> and is normally screened from the lamp by a spherical reflector arranged beneath the lamp so that it may be swung aside to give a long-range beam if required. A removable screen is mounted between the lens and source so that the light may be rendered invisible to aircraft. The Specification as open to inspection under Sect. 91 comprises also modifications in which the lens comprises a series of semi-cylindrical ribs formed on a plain glass, the reflector is parabolic instead of ellipsoidal or the light source is out of focus. This subject-matter does not appear in the Specification as accepted.
Patent GB-784604-A (GB)
Title: Improvements in board games
Inventor: BARBER KENNETH BRADFIELD
IPC: A63F3/00
Filed: 1956-02-15
Abstract: 784,604. Board games. ARIEL PRODUCTIONS, Ltd. Feb. 15, 1956, No. 4772/56. Class 132(2) A game board is marked with a map having segmented tracks and starting and destination points 14, superposed grid lines 15 being provided, and the players draw from a pack of cards to determine their starting and destination points. Each player may have more than one playing piece and further cards may represent advantages and disadvantages
Patent GB-801528-A (GB)
Title: Improvements in grafting polymers or copolymers
IPC: C08J5/22
Filed: 1956-05-11
Abstract: Graft polymers are produced by subjecting a polymer to ionizing radiation, such as beta and gamma rays, neutrons, accelerated electrons and X-rays, while in contact with at least one vinyl or divinyl monomer, the polymer being constituted of a monomer different from that utilized (see Group IV (a)).ALSO:Graft polymers are produced by subjecting a polymer to ionizing radiation such as beta and gamma rays, neutrons, accelerated electrons and X-rays, while in contact with at least one vinyl or divinyl monomer, the polymer being constituted of a monomer different from that utilized.  The polymer may be polyethylene, polyvinyl chloride, a polyamide, polyglycol terephthalate, polystyrene, rubber, cellulose or a derivative thereof, polymethylmethacrylate, a polyester, polytetrafluorethylene, or polyisobutylene.  The monomer may be vinyl chloride, styrene, vinylidene chloride, vinylcarbazole, isoprene, butadiene, acrylonitrile or acrylamide.  The reaction mixture may be (a) a solution of polymer in liquid monomer, (b) a mixture of polymer and a solution of the monomer, (c) a solution of polymer and monomer in a common solvent, (d) a mixture of finely-divided polymer and liquid monomer, or (e) a shaped polymer in surface contact with the monomer. A chain transfer agent such as carbon tetrachloride or bromoform may be used to control the length of the branch chains.  The process may be made continuous by passing the monomer and polymer through an irradiation zone.
Patent GB-143627-A (GB)
Title: Improvements relating to self acting mules and twiners
IPC: D01H3/12
Filed: 1919-02-26
Abstract: 143,627. Pickford, J. Feb. 26, 1919. Mules and tenets.-Means is provided in conr.exion with the slide block or trail lever to retain the boot leg in the same position angularly during the rise and fall of the slide block on the copping-rail, in order to retain a uniform movement of the charge-rod and a uniform tension in the backing-off spring during the whole formation of the cop, and also to dispense with the use of an inclined unlocking-bracket. The slide block a, Fig. 1, carries an auxiliary slide b, adapted to move horizontally and supporting a bowl i against which the boot leg d presses. The slide b is controlled by a fixed guide c substantially parallel with the incline on the boot leg. A cavity f is provided in the slide b having its bottom surface inclined oppositely to the guide c. A ball g rolls in this cavity, and a plate m, having a limited lost motion relatively to the slide b, may be interposed between the ball g and the guide c. The bowl i may run in a dish of oil and be mounted on a spindle k carried in open holes, parts a' of the slide block a covering the outer ends of the holes to prevent longitudinal movement of the spindle. The movement of the slide b, and the bowl i carried thereby, may be governed by a screwed spindle operated by a pinion carried up and down a rack by the movements of the slide block. Tn another form, the slide b, Fig. 10, is controlled by a projection 2 moving along a guide-surface 3. The slide b is provided with a slidable member 4 having grooves 5 engaging projections 6 on the bracket c which carries the guide 3. The boot leg bears against a block 7 carried by the member 4. The boot leg d may be provided with a bowl bearing against the vertical face of a guide member capable of vertical displacement relatively to the slide block, The guide-member slides over the pivot of a bowl on to which the boot leg moves when the faller is locked. The slide block or trail lever may be arranged to move at an angle to the vertical, so as to move towards the boot leg and prevent the slide block from being lifted by the pressure of the boot leg. The trail lever 10, Fig. 13, may be connected to its fulcrum 11 by a link 12 and controlled by a projection 13 engaging a fixed guide-surface 14 slightly inclined to the vertical. The surface 18 on the boot leg d is vertical, and the slight incline of the surface 14 prevents the trail lever from rising under sudden pressure exerted by the boot leg.
Patent GB-932531-A (GB)
Title: Substituted amides
IPC: C07D307/00
Filed: 1962-02-08
Abstract: The invention comprises compounds of the formula <FORM:0932531/IV(a)/1> (wherein R1, R2 and R3 are each alkoxy of at most 6 carbon atoms, x is zero or 1 and n is 1, 2, 3 or 4) and their preparation by condensing a compound of the formula <FORM:0932531/IV(a)/2> with a reactive derivative of a 3,4,5-trialkoxybenzoic or -cinnamic acid.  When Y is an amino group the reactive derivative is, for example a halide or ester, or the anhydride, and when Y is a halogen atom, Z is the group -NH- (alkali metal).  Examples are given.
Patent GB-1140711-A (GB)
Title: Apparatus for generating signals of which the instruction content can be varied at will
IPC: H03K3/78
Filed: 1961-02-09
Abstract: 1,140,711. Multiplex pulse modulation systems. L. BOLKOW, [trading as BOLKOWENTWICKLUNGEN K.G.]. 9 Feb., 1961 [11 Feb., 1960], No. 4859/61. Heading H4L. Apparatus for generating control signals comprises a carrier frequency generator which produces positive and negative half waves, the internal resistance of the generator being variable in relation to the positive and negative half waves separately from a very high to a very low value by means of separate sets of keying pulses in order to impose on the carrier two different instructions. The apparatus may be used for controlling a guided missile, the modulation applied to the positive half cycles controlling the missile in one plane and the modulation applied to the negative half cycles controlling movement in another plane. In the modulator circuit shown in Fig. 3 the output of a multivibrator circuit formed by transistors T 1  T 2  is fed through transistor T 3  to two transistors T 4  T 5 , one for each modulation system; the outputs of transistors T 4  T 5  are integrated by R 18 C4 and R26 C5 respectively, and direct voltage components, which can be set by means of potentiometers P5 P8 controlled by a control stick (not shown), are superimposed on the inputs of two Schmitt trigger circuits formed by transistors T6 T7 and T8 T9. The integrating circuits flatten the control characteristics so that small movements of the control stick have a smaller effect than they would if the control characteristics were linear; condensers C3 C6 make the system respond more rapidly to rapid movements of the control stick. The outputs of the modulator circuit appearing on lines 10 and 11 are thus rectangular voltages which are independently adjustable as regards their keying ratios (i.e. the mark/space ratios) but have equal periods. Figure 5 shows one form of carrier frequency generator comprising a self-oscillating multivibrator formed by transistors T52 T55 coupled to a transformer W. The modulation voltages on lines 10 and 11 switch transistors T51 T56 from conducting to non-conducting states and vice-versa. The output to the load, e.g. a guided missile, is taken along lines a and b connected to the secondary windings W1 W2 of the transformer. If the load is capacitative this may distort the output, and diodes D52 D53 and transistors T53 T54 connected to a secondary winding W3 may be provided to prevent such distortion. In a modified circuit, Fig. 6 (not shown), one of the leads a or b is connected to either the positive or the negative battery supply.
Patent GB-797491-A (GB)
Title: Transformer radiator
IPC: H01F27/12
Filed: 1957-02-13
Abstract: 797,491. Transformer radiators. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 13, 1957 [Feb. 21, 1956], No. 4872/57. Class 64(3) A transformer radiator comprises a group of parallel tubes 1 having ends of rectangular cross-section and extending between and at right angles to tubular headers 3 which communicate with the transformer tank 4, a plurality of such tubes being positioned with the short sides 2 of their rectangular ends in abutment and then secured together in a group by weld joints along these short sides, the ends of the tube group then being welded into elongated slots in the tubular headers 3. The cross-sectional shape of the intermediate portions of the tubes 1 may be circular or elongated.
Patent GB-373149-A (GB)
Title: Improvements in coin delivery machines
IPC: G07F5/24
Filed: 1931-02-16
Abstract: 373,149. Money-delivering apparatus. ROTHERHAM, G. H., Eger, Czecho- Slovakia. Feb. 16, 1931, No. 4898. Convention date, Nov. 20, 1930. [Class 116.] In order to deliver a combination of different denominations of coins through the depression of a single key, rollers 21 on bars 16 carried by arms 15 secured to shafts 9 journalled in the machine casing, are operated by pivotallymounted cams 30, to actuate ejectors 6 ; one shaft 9 is associated with each ejector through arms 7, 8, 14, and the required combination of coins is determined by pivoting the appropriate cams to a bar 31 operated from a key through a spring-controlled bell crank 26.
Patent GB-452420-A (GB)
Title: Improvements in and relating to electroacoustic apparatus
IPC: H04R1/24
Filed: 1935-02-15
Abstract: 452,420. Loud-speakers. WHITELEY, A. H., 19, Alexander Avenue, Mansfield, Nottinghamshire. Feb. 15, 1935, No. 4908. [Class 40 (iv)] A permanent-magnet moving-coil loudspeaker has an inner polepiece 7 associated with polepieces 8, 12 to provide two gaps in series in the same magnetic circuit for coils 3, 11 attached to a low-frequency cone 1 and a small, rigid, high-frequency diaphragm 13 respectively. The polepiece 7 is of tubular form and has an insert 19 shaped to produce a passage of increasing cross section, preferably of exponential form, which is continued by a horn 20. The insert 19 is fixed to the polepiece 7 by fins 21 and the polepiece, after being centred, is held in position in a magnetic member 22 by a solidified filling 23 of white metal. The magnetic assembly is clamped by bolts 25 engaging rods 24 at the corners of the square central aperture of the member 22. The cone 1 is centred by a spider 4 of resin-impregnated fabric stamped to form curved arms attached to an aluminium ring 6 secured to the cone-housing 2. Dust is excluded from the air-gap by a felt washer 30. The small diaphragm 13 has annular corrugations 14 and is clamped between an aluminium ring 15 and a ring 16 of synthetic resin by bolts 18. The magnet assembly may be enclosed by a casing (not shown) bolted at 28 to the housing 2 which may be provided with lugs 29 for attachment of the loudspeaker to a baffle. Reference has been directed by the Comptroller to Specification 445,935.
Patent GB-664050-A (GB)
Title: Improvements in or relating to frequency-dividing circuits
IPC: H03K25/00
Filed: 1949-02-23
Abstract: 664,050. Pulse frequency-dividing circuits. PHILCO CORPORATION. Feb. 23, 1949 [March 23, 1948], No. 4951/49. Class 40 (vi). A frequency-divider comprises a storage capacitor to which are applied recurrent voltage pulses of equal amplitude so that its charge successively increases in steps of decreasing amplitude a further step voltage being produced from this voltage of which the steps successively increase the two voltages being combined in an aiding sense and applied to trigger a blocking oscillator to produce an output pulse at a predetermined level corresponding to a given number of input pulses. The Figure shows a frequency dividing circuit in which positive going input pulses from a source 13 are applied through a coupling capacitor 16 to charge a storage capacitor 19 via a diode 17 the coupling capacitor 16 being discharged through diode 18 in the interval between pulses. The voltage across capacitor 19 thus increases in steps which due to the sharing of charge with capacitor 16 are of decreasing amplitude, Fig. 2 (not shown). At a predetermined step however amplifying valve 21 is rendered conductive to produce a voltage across its cathode load resistor 30 which increases in steps, coincidently with the steps of the voltage across capacitor 19, of increasing amplitude as the cathode current of valve 21 increases. The triggering voltage applied between the grid and cathode of the blocking oscillator valve 25, Fig. 3 (not shown), thus comprises the voltages across capacitor 19 and resistor 30 additively in series which is a staircase wave the steps of which may be made equal or of increasing amplitude. At a given step corresponding to a predetermined number of input pulses from source 13 blocking oscillator valve 25 fires to produce an output pulse.
Patent GB-1393593-A (GB)
Title: Conveyors
IPC: B65G25/10
Filed: 1974-02-04
Abstract: 1393593 Reciprocating conveyers GANN CONVEYER Inc 4 Feb 1974 [6 Feb 1973] 04955/74 Heading B8A A conveyer for scrap metal comprises a number of reciprocating carrier bar sections 26<SP>1</SP>, 2611 each having a plurality of pusher heads 32 and, at each end, a pair of replaceable wear shoes 28 which rest on inclined bars 22, 24 secured to a stationary support 14. To prevent the sections 26 from lifting, replaceable shoes 31 are mounted on hold-down bars 30 welded to the sections 26, the shoes 31 being positioned below pairs of wear bars 35 fixed to each end of a stationary support member 20. The sections 26 are detachably joined by plates 42 and the support 14 is also in sections. To enable one or more of the sections 26 to be readily removed, one of the stationary support sections has inclined bars 22, 24 which do not overhang a support section 14, Fig. 4. A section 26, having been aligned with the modified stationary section, is detached at plates 42 and lifted clear. In Fig. 5 (not shown), a pusher head modified for conveying steel punchings and turnings has pusher blades (58) which are triangular in side elevation.