baber/WOPTO huggingface dataset:
Patent GB-162482-A (GB)
Title: Improvements in lifting-jacks
IPC: B66F15/00
Filed: 1920-03-09
Abstract: 162,482. Jones, D. T. March 9, 1920. Jacks. - The load-engaging chain G is passed over a chain wheel C and secured to a lever J. The chain-wheel C is prevented from turning under the influence, of the load by ratchet mechanism, and a pin K in the end of the lever is engaged with any one of a series of slots L in the post A. The point of attachment of the chain to the lever can be varied.
Patent GB-378476-A (GB)
Title: Improvements in processes for the manufacture and production of vat dyestuffs and the dyestuffs produced thereby
IPC: C09B3/00
Filed: 1931-03-09
Abstract: Fluoranthene derivatives.--Vat dyes are obtained by condensing fluoranthene (to which a recent structural formula is assigned) with anhydrides of aromatic o-dicarboxylic acids, such as phthalic anhydride, anthraquinone-1 : 2-dicarboxylic anhydride, naphthalene-2 : 3-dicarboxylic anhydride; halogenated phthalic anhydrides may be used instead of phthalic anhydride itself.  The condensation may take place by heating the constituents alone or in the presence of condensing agents, such as aluminium chloride, sodium-aluminium chloride, antimony trichloride, ferric chloride, titanium tetrachloride, and in the presence of a solvent or diluent such as nitrobenzene.  The products may be further modified by chlorination, bromination, nitration, amidation or by the introduction of an aroylamino group.  Amidation is effected either by the reduction of nitro derivatives or by the condensation of the halogen derivatives with an aminoanthraquinone.  An aroylamino group is introduced by aroylating an amino derivative.  In examples (1) fluoranthene is condensed with phthalic anhydride in presence of sodium-aluminium chloride, or in trichlorbenzene and in presence of aluminium chloride, or in nitrobenzene and in presence of aluminium chloride; the product can be purified by treatment with solutions of caustic alkalis, alkali carbonates, or hypochlorites, and then by fractional precipitation from sulphuric acid solution, and dyes cotton greenish-yellow shades from the vat; (2) fluoranthene is condensed with naphthalene-2 : 3-dicarboxylic anhydride in nitrobenzene and in presence of aluminium chloride; the product dyes greenish-yellow shades; (3) fluoranthene is condensed with 4-bromophthalic anhydride in nitrobenzene and in presence of aluminium chloride to give a 2-bromophthaloylfluoranthene which dyes reddish-yellow shades; (4) fluoranthene is condensed with 4 : 5-dichlorphthalic anhydride in nitrobenzene and in presence of aluminium chloride; the product dyes reddish-yellow shades; (5) the phthaloylfluoranthene of (1) above is treated in nitrobenzene and in presence of iodine with sulphuryl chloride (dyes greenish-yellow shades), and with bromine (dyes greenish-yellow); (6) the 2-bromophthaloylfluoranthene of (3) above is condensed with a -aminoanthraquinone in nitrobenzene and in presence of cuprous chloride and sodium acetate; the product dyes reddish-brown shades; (7) the bromophthaloylfluoranthene of (5) above is similarly condensed with a -aminoanthraquinone to give a product dyeing corinth shades; (8) the bromophthaloylfluoranthene of (5) above is similarly condensed with leuco-1.4-diaminoanthraquinone to give a product dyeing grey to black shades.
Patent GB-581581-A (GB)
Title: Hydraulically operated controlling means for plants, machines, apparatus and the like
IPC: F15B11/20
Filed: 1944-04-20
Abstract: 581,581. Hydraulic machines; fluidactuated valves. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. April 20, 1944, No. 7329. Convention date, April 22, 1943. [Classes 69 (ii) and 135] In hydraulic control means in which a number of operations take place in sequence and the duration of each is independently variable by means of a separate timing device A, the latter each comprise a manually adjustable member 26 and a member 27 rotatable from the shaft. 1 controlling all the operations. As shown, operations are effected by hydraulic motors 47-49, controlled respectively by distributing vales 2-4 mounted on a common shaft 1 rotated step-by-step by a differential piston 9 under control of timing devices A. The latter each comprise the member 26 having a port 28, surrounded by the cylinder 27 having a port 31 and rotatable by pawl mechanism 43, 44 from the motor 17 driving the supply pump 16. After a predetermined number of steps, adjustable by rotating member 26 manually, the ports 28, 31 coincide and place the large end of differential piston 9 in connection with a reservoir. Pressure acting on the small end then moves the piston to the right and rotates the shaft 1 one step through ratchet and pawl mechanism 6, 7, 8. This reverses the liquid supply to the first motor 47 and simultaneously causes a cam 46 to lift a member 45 and disengage pawls 43, 44 of the first timing device, while a second member 45 is lowered to engage the pawls of a second timing device. Disengagement of the first set of pawls releases the cylinder 27 which returns under spring influence to close the exhaust connection 28, 31, thereby causing pressure to build up on the large end of piston 9 and effect a return stroke. After a further adjustable number of strokes of the second set of pawls the large end of piston 9 is again exhausted by connecting parts 28, 31 on the second timing device, and piston 9 moves to the right to rotate shaft 1 another step. This cuts out the second timing device to complete the first operation and actuates the first timing device of the distributing valve 3 to actuate cylinder 48 and start the second operation. The cycle proceeds as before. A full stroke of piston 9 is ensured by a lever 75 which is operated by a wheel 76 on shaft 1 and opens a by-pass in the connection between cylinder 9 and timing device A. Any operation may be interrupted by manual operation of valves 53-55 between the distributing valves and their respective motors. Rotation of shaft 1 may also be effected by manual operation of a valve 11 controlling exhaust from the differential cylinder or by manual or automatic control of an exhaust valve 24, or by rotation of a hand lever 77. Speed of operation of motor 47 can be controlled by a throttle valve 72 pressed against an adjustable stop 73 by exhaust pressure. Any operation may also be prevented by a hand-operated locking device 81.
Patent GB-871840-A (GB)
Title: Improvements in or relating to the manufacture of heat-sealable films
Inventor: SANDERSON EDWARD GEORGE
IPC: C08J7/052
Filed: 1959-03-03
Abstract: The film-forming composition of the parent Specification (a vinylidene chloride copolymer plus 1%-5% of a solid ketone) is modified by the further incorporation of 0,01-0,2 wt. per cent (based on the total solids) of silica having a particle size below 200 millimicrons.  Exemplary compositions comprise a 90/10 vinylidene chloride/acrylonitrile copolymer, laurone, 3-15 millimicron silica and a 50/50 toluene/methyl ethyl ketone solvent mixture.
Patent GB-265408-A (GB)
Title: A process of ornamenting skins
IPC: B44C1/24
Filed: 1926-03-17
Abstract: 265,408. Nathan, A. March 17, 1926. Embossing; printing processes. - Fur skins, previously dressed in the usual way and also, if required, dyed, are ornamented, e.g. to imitate expensive skins, by means of embossing-plates, which are preferably heated and which may be inked so as simultaneously to colour the skin. In examples, calf skins are treated to imitate pony skins or broadtails. Reference has been directed by the Comptroller to Specifications 2034/78, 14644/08, 24710/10, 24013/11, and 251,494.
Patent GB-471911-A (GB)
Title: Improvements in and relating to brake actuating mechanism
IPC: B60T11/04
Filed: 1936-03-12
Abstract: 471,911. Brakes for articulated vehicles. NEATE, R. W. March 12, 1936, No. 7511. [Class 103 (i)] In articulated vehicles, for instance a sixwheeled vehicle comprising trailer and tractor, a brake operating rod 10 from the tractor carries a pulley 9 round which passes a looped cable 7, which passes through the lower member 3 of the tractor turntable and the upper member 4 of the trailer turntable and is connected to the trailer brakes at 15. The loop passes on either side of a pulley 6 mounted on the axis of the turntable. Pulleys on either side of the pulley 6 and pulleys 13, 14 guide the cable.
Patent GB-752824-A (GB)
Title: Improvements in or relating to single-revolution high-speed cylinder presses with rotary forme printing mechanism
IPC: B41F3/42
Filed: 1954-03-16
Abstract: 752,824. Printing- machines. SCHNELLPRESSENFABRIK AKT.-GES. HEIDELBERG. March 16, 1954 (March 19, 1953], No. 7625/54. Class 100 (2). In a combined rotary and singlerevolution cylinder printing-press, the rotary forme cylinder 12 is located ahead of the flat forme 3 in the direction of rotation of the impression cylinder 4, and the sheet feeder 6, 10 is spaced from the cylinder 12 by an amount substantially equal to the sheet length of the impression segment 20 so that the latter may be fully exposed for registration purposes; in order that the inking mechanisms 13, 21 associated with the respective formes may be cleaned simultaneously with a single cleaning device, they may be temporarily connected by a roller 26. In the highspeed press shown, sheets are fed from a stack 5, and after printing are delivered by a chain delivery mechanism 7, 8 to a stack 9; the type bed is reciprocated, and the cylinders 4, 12 and mechanisms 6, 10 and 7, 8 are driven, from a main shaft 11. During cleaning of the inking mechanisms the roller 26, permanently in contact with the forme roller 17 of the mechanism 13, is swung into contact with the ductor roller 23 of the mechanism 21, a stripper 28 with drip tray 27 is swung on rocker arms 29 into contact with the drum 24 of the mechanism 21, and cleansing agent is applied by a single supply device to the doctor roller 15 of the mechanism 13.
Patent GB-957985-A (GB)
Title: Process for the preparation of 2:5-furandicarboxylic acid
Filed: 1962-02-27
Abstract: 2:5  Furandicarboxylic acid is prepared by heating a tetrahydroxy-butane-dicarboxylic acid HOOC-(CHOH)4-COOH, with concentrated sulphuric acid, first at 85 to 120 DEG C., until two molecular proportions of water have been eliminated and then at above 120 DEG C., preferably at 125-135 DEG C., until a third molecular proportion of water has been eliminated.  Manno-saccharic, idosaccharic, talomucic, allomucic acids may be used or a reaction mixture obtained by mixing monopotassium saccharate with concentrated sulphuric acid which forms saccharic acid in situ. Sulphuric acid of at least 90%, preferably 100% strength, is used and zinc or aluminium sulphate may be added to the reaction.  The product is washed with water and filtered and purified by way of its calcium or disodium salt.
Patent GB-1216474-A (GB)
Title: Detergent composition
Inventor: PARKE JOHN PEDLOW
IPC: C11D3/33
Filed: 1967-02-17
Abstract: 1,216,474. Detergent composition. UNILEVER Ltd. 14 Feb., 1968 [17 Feb., 1967], No. 7712/67. Heading C5D. A detergent flake comprises olefin sulphonate, and 5-11% by weight of water. The preferred detergent is a straight-chain C 14 - C 16  alpha-olefin sulphonate. Builder salts, such as trisodium nitrilotriacetate, sodium ethylenediaminetetraacetate, or sodium tripolyphosphate can be included. Latherboosters, fluorescers, pigments; perfumes, sodium perborate, sodium carboxymethylcellulose, and inorganic salts can also be included.
Patent GB-579945-A (GB)
Title: Improvements in or relating to implements or appliances for cutting thistles and the like
IPC: A01B39/04
Filed: 1944-04-26
Abstract: 579,945. Thistle-cutting machines. CRAWFORD, A., CRAWFORD, D. R., and BARSBY, R. April 26, 1944, No. 7791. Addition to 505,614. [Class 6 (iii)] The thistle-cutting machine of the parent Specification is modified by providing two spaced rigid members 14 which are connected to the draught means 9 and extend rearwardly therefrom to points at or near the cutting device where they aie engaged with a part or parts associated with the latter in such manner as to exercise control over the sidewaysswinging movements thereof. A further improvement consists in providing a transverse reinforcing piece 7 near the forward end of the V-shaped cutting appliances. In the construction shown the converging blades 1 are secured between metal strips 3 and are connected to a triangular bracket 2 which is reinforced by the piece 7. Bars 4, 5 forming an extension of the bracket have their forward ends mounted for universal movement in a joint 6 as in the parent Specification. The reinforcing piece 7 has an upright extension 8 to which is connected a transverse bar 10 carrying brackets 12 at its ends. Each bracket is recessed for the loose reception of a member 14 and between the bracket and an adjustable pin 17 on member 14 is a spring 16. Another stop screw 18 passes through member 14 to the rear side of the bracket. By this arrangement the members 14, which have bent ends 14a engaging in brackets 15 on the draught means 9, exercise a control over the sideways-swinging movements of the cutting appliance. For connecting the blades to the brackets, each strip 3 has riveted to it a curved plate 20a which has a series of holes whereby it may be selectively bolted to a similarly-constructed bracket on the reinforcing piece 7. The blades may thus be pivotally adjusted about a transverse axis extending through or near the apex of the V formed by the blades. Specification 505,615 is referred to.
Patent GB-195262-A (GB)
Title: Improvements in caps for cap spinning, twisting, doubling and like machines used in the production of yarns or threads of fibrous substances
IPC: D01H1/06
Filed: 1922-03-17
Abstract: 195,262. Scott, W., and Scott, W. I. March 17, 1922. Spindle apparatus.-Caps for cap spinning, twisting, doubling and like machines are formed with elongated slots b or a series of opening in longitudinal alignment with each other between their shoulders and lower edges.
Patent GB-236497-A (GB)
Title: Improvements in or relating to automatic or semi-automatic telephone systems
IPC: H04Q3/00
Filed: 1924-04-01
Abstract: 236,497. Automatic Telephone Manufacturing Co., Ltd., and Ostline, J. E. April 1, 1924. Drawings to Specification. Automatic exchange systems.-A register sender exerts a different control according to the path over which it is taken into use. In the system described, register-controllers cf the code-translating type are divided into classes adapted to be selected in accordance with the first digit dialled, each class being multipled to a particular level of the register-controller selectors. The last choice register-controllers of the different classes are multipled to another level, two of the leads to the bank contacts being reversed, so that when a register-controller is seized over this level, a polarized relay in the register-controller responds and causes it to route the call to an operator's position. According to a further feature, the pause between successive series of impulses transmitted by a register-controller may be made dependent upon the reception in certain circumstances of a distinctive current indicating that the appropriate connecting switch is ready to receive the next series of impulses. When a hunting switch interposed between two numerical switches is taken into use, the current over the talking wires is reversed and a polarized relay in the register-controller pulls up and prevents the transmission of the next impulse series until a numerical switch is seized and the current restored to its original direction. The same polarized relay in the register-controller is utilized in carrying out both features of the invention. The register-controller is so arranged that by a simple manual switching operation it may be converted for use in a system employing either two or three digits for the exchange name. The system described is identical with part of the network described in Specification 233,007 which claims other features. Specifications 200,484 and 233,643 also are referred to.
Patent GB-750691-A (GB)
Title: Improvements in and connected with the mounting of electric fuse blocks and switch fuse units
IPC: H01H9/10
Filed: 1952-03-27
Abstract: 750,691. Junction-boxes. CRABTREE & CO., Ltd., J. A., and HILL, W. E. March 18, 1953 [March 27, 1952], No. 7840/52. Class 38 (1). [Also in Group XXXVII] Means for mounting switch fuse units in a metal box 9 comprise a metal plate 1 having two brackets 2 secured to it on which the switch 4 is mounted, and tapped holes 10 so that the fuse block 12 receiving screw-in fuses 13 can be screwed to the plate. Keyhole slots 6 in the plate engage with the heads of screws 7 secured in saddles 8 in the base of the box. The fuse block may, alternatively, receive fuses 16 with end tags 17 (Fig. 6, not shown) mounted according to Specification 708,321. To mount a fuse unit only, the plate 18 is I-shaped, the unit receiving screw-in or end-tag types of fuses, keyhole slots 19 and tapped holes 20 being provided as before (Fig. 9), or the plate may be formed as a frame.
Patent GB-700093-A (GB)
Title: Improvements in or relating to machines for the manufacture of air-tight packing bags
IPC: B31B15/00
Filed: 1950-03-29
Abstract: 700,093. Making bags. CELLOPHANE SOC. ANON. March 29, 1950 [May 10, 1949], No. 7868/49. Class 94 (2). In a bag forming machine comprising a table having a rectangular opening and a piston which is lowered upon a sheet of material overlying the opening and carries it through the opening to form the bag, the piston, in the same stroke, incorporates a reinforcement sheet in the bag, and at the end of the stroke is disconnected from its piston rod whereupon a plate carried by the said rod is moved by the latter to engage the inside of the bottom of the bag and remove the bag from the piston. The apparatus comprises a table 10 with a substantially rectangular aperture and downwardly extending guides within which the piston 11 is reciprocated by manual pressure upon a rod 12 to which it is coupled by a spring-pressed plunger 16 slidable radially within the top plate 13 of the piston and with its inner end normally engaged within a recess 18, Fig. 2 (not shown), in the piston rod 12. With the piston elevated a reinforcement blank of strong paper or cardboard, and preferably scored at a-d, Fig. 4, to provide flaps e-h, is positioned over the hole in the table 10 and the bag blank placed upon it, after which the piston is pressed downwardly. The flaps e and g of the reinforcement thus become positioned between the end folds and adjacent sides of the bag, whilst the flaps f and h are folded upwardly against the sides adjacent to them. When the top of the piston is near alignment with the table 10 the offset end 20 of the plunger 16 bears upon a cam surface 21 formed in the table , so that the plunger is moved in opposition to the associated spring 17 and disengages the piston from the rod 12. The piston is halted by its upper end engaging the table 10 while the rod 12 continues to move so that a rectangular plate 15 secured on its lower end pushes the bag and its reinforcement off the end of the piston and within a space bounded by four angle irons 22 standing up from a conveyer belt 23. The flaps f, h of the reinforcement are secured subsequently to the bag, e.g. by gummed strips. In a modification, Fig. 3 (not shown) the reinforcement blank is positioned over an aperture of a table immediately above angle-sectioned guides 22 located immediately below the piston. The invention is described more particularly as applied to the apparatus disclosed in the prior Specification 631,807 for making air-tight hags from heat-sealable materials, and takes the place of the suction means described in the prior Specification for removing the folded bag from the piston.
Patent GB-1467233-A (GB)
Title: Dielectric waveguide filter assemblies
IPC: H01P1/213
Filed: 1973-02-19
Abstract: 1467233 Channel-dropping filter POST OFFICE 18 Feb 1974 [19 Feb 1973] 7937/73 Heading H1W A channel dropping filter comprises frequency-responsive directional couplers formed from all-dielectric waveguide. Each coupler provides total coupling of wave energy in a certain band from an input terminal to an output terminal, energy in other bands being propagated to a second output. Fig. 3 shows a self-explanatory scheme for channel-dropping or combination using such couplers. Each coupledline filter (Fig. 1) consists of dielectric waveguides 2, 5 coupled over such an interval and having dielectric constants relative to the medium in which they are immersed such that, at a certain frequency, the whole of the wave energy coupled into one guide appears totally in the other guide at the end of the coupling interval. The condition that the whole of the input energy will appear wholly on one or the other of the two guides at the end of the coupling interval can be stated as where L is the length of the coupling interval and C is the coupling coefficient which is frequency-dependent. If n is even, the output appears on the guide to which it was originally applied, and if n is odd, the energy appears on the other line. Thus the coefficient C may be adjusted to cause the coupler to separate one group of frequencies from another where both groups are applied in common to the same input of the coupler. According to the invention, the cross-sectional dimensions of each waveguide is chosen such that the ratio #g/# 2  lies in the range from where #g is the wavelength of energy in the guides remote from the coupling region, # 2  is the TEM wavelength, E 1  is the dielectric constant of the guides and E 2  the dielectric constant of the medium in which they are immersed. The wavelengths are those associated with the frequency at which total coupling from guide to the other occurs. The dielectric waveguides may be associated with a single ground plane, or two such planes one on either side of the waveguide.
Patent GB-761431-A (GB)
Title: Improvements in four-wheel drive motor tractors
IPC: B60K17/34
Filed: 1952-03-28
Abstract: 761,431. Tractors. WEBSTER, N. March 30, 1953 [March 28, 1952], No. 7939/52. Classes 79(1), 79(2) and 79(5). A motor tractor comprises two driven units, namely a front unit 1, Fig. 2, including a power unit 5, gear box 6 and reduction gears, road axle and wheels 4 and a rear unit 2 including a shaft S, Fig. 3, driven from the unit 1, a reduction gear, road axle and wheels, the rear unit being in driving connection with the front unit by being pivotally connected, at 11, by means of a tubular casing 12, about a vertical axis passing through the centre about which a driven planet bevel gear 9, Fig. 3, oscillates, a steering mechanism being provided which enables the front unit 1 to be pivoted relative to the rear unit 2 and so control the direction of the tractor, which mechanism comprises a quadrant gear 14 fixed to the front unit and in mesh with a worm 15 mounted on the rear unit. The tubular casing 12, Fig. 2, en. closes the shaft S and has pivots 11 engaging in bearings 13 formed on the casing of the unit 1. Referring to Fig. 3, the shaft from the gear box 6 drives a bevel.gear 7 which through the medium of the planet bevel gear 9 drives a bevel gear 8 on the shaft S. The planet bevel gear 9 is mounted on a carrier 10 provided with teeth 20 which mesh with a fixer gear 19 on the unit I so that when the tractor is turned the gear 9 is rotated with the carrier in order to cancel the disturbing action between those gears and the main drive shaft. Slight axial movement of the bevel gear 8 towards the rear of the tractor is permitted when the tractor is turned in order to maintain correct mesh between the gears 7, 8 and 9. This effect is achieved by semi-circular slots in members 22 mounted in the carrier 10<SP>1</SP>, engaging pegs 23 attached to a carrier 24 for the bevel gear 8. Whilst sliding movement of the carrier 24 is thus permitted rotation is prevented by means of its squared end 24a slidably engaging the member 12. Individual ratchet clutches are provided for driving the rear wheels instead of a differential gear and the front wheels are driven by individual friction clutches. The latter clutches may be controlled to assist the steering. The rear unit 2 is capable of limited rotation about the longitudinal axis of the casing 12.