baber/WOPTO huggingface dataset:
Patent GB-934044-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C1/38
Filed: 1959-11-30
Abstract: 934,044. Ladders. P. L. GAGNON. Nov. 30, 1959 [Dec. 1, 1958], No. 40650/59. Class 20 (2). A temporary rung 1 for replacing a missing rung of a metal ladder is provided with hanger arms 2, 3 by which it is supported from the next upper or lower rung 28. The arms 2, 3 are recessed at 17, 19 to engage over the rung 28 and are provided with clamping screws 22, 23. Extensions 4, 5 adjacent the rung 1 abut the stiles 26 and holes 6-9 are provided for the reception of securing screws 10-13. The rung 1 may be welded to the arms 2, 3 or screwed into holes therein to permit adjustment for different width ladders. In a modification, Fig. 10 (not shown), the screws 22, 23 are replaced by cams. In another construction, Fig. 5 (not shown) the arm 2 is clamped to a stile 31 by a bolt 33engagingaslotted extension 29 thereon and an L-section adaptor 32. In a modificatiou, Fig. 7 (not shown) for an L-section stile 35, a U-section adaptor 36 is employed and the adaptors are adjusted by a turn-buckle 39.
Patent GB-958075-A (GB)
Title: Improvements in fabric take-up apparatus for flat bed knitting machines
IPC: D04B7/04
Filed: 1961-11-15
Abstract: 958, 075. Knitting-machines. S. A. MONK (SUTTON IN ASHFIELD) Ltd., and B. A. MONK. Nov. 14, 1962 [Nov.15, 1961], No. 40780/61. Heading D1C. Fabric take-up apparatus for use in a flat knitting-machine comprises two separate mechanisms, one serving to engage the initial course so as to ensure positive take-up from the commencement of knitting on the machine and the other operating subsequently when sufficient length of fabric has been knitted to enable successive portions of the fabric to be engaged after each course is knitted to ensure the subsequent take-up of the fabric. The mechanism for engaging the initial course and effecting the take-up of the initial portion of the fabric comprises a bar 16 having hooks 17 mounted therein, the bar being supported at each end by a carriage 19 slidable on a guide 21. The carriage is coupled by a link 22 and a chain 23 on a sprocket of a sleeve 25 freely rotatable on a shaft 26. The sleeve 25 also carries a pulley 30 on which is wound a cord 31 carrying a weight 32. A collar 27 is secured to the shaft 26. An electric motor drives the shaft 26 to rotate the collar 27 whereby a pin 28 on it engages a pin 29 on the pulley 30 whereby the weight is raised and simultaneously the carriage moved up the guide 21. The carriages in moving upwards carry the bar 16 and hooks 17 which when they have passed between the loops extending between the needles of the two beds are shogged to cause the hooks to engage these loops of the initial course Figs. 6, 7. The shaft 26 is then released from the drive with the electric motor and the weight exerts its influence to pull on the carriage and thereby the hooks 17 so that as knitting proceeds the fabric is drawn away from the needles. After a predetermined length of fabric has been knitted the hooks are deflected out of the fabric or the fabric is allowed to fall off of the hooks. A length of fabric having been produced the second mechanism is now rendered operative to continue the take-up of the fabric. This mechanism comprises a bar 43 having a series of hooks 42 which are given vertical and horizontal motions by means of cams 48, 56 acting on levers 45, 53 transmitting their motions to the bar 43 such that the hooks 42 are raised and pressed into engagement with the fabric after each course. Springs 58 coupled to the bar 43 then exert a tension on the fabric until the bar is raised again for further engagement with the fabric. To avoid the hooks 43 fouling the hooks 17 during the production of the initial portion of the fabric, the lever 45 has a projection 64 which engages a cam 66 on the sleeve 25 such that during the take-up by the hooks 17 the cam 66 serves to prevent the lever 45 imparting the horizontal motion to the hooks 42.
Patent GB-1447257-A (GB)
Title: Movable wall panels
IPC: E05D15/06
Filed: 1973-08-30
Abstract: 1447257 Sliding panels INDUSTRIAL ACOUSTICS CO INC 30 Aug 1973 [31 Aug 1972] 40857/73 Heading E1J A movable wall panel suspendable on hangers comprises a body with top and bottom compartments in which casings 14 ,15 are telescopically retractable, the bottom casing being extensible by a device to support the panel and to press the resiliently mounted top casing against a ceiling. The top casing is biassed outwardly by springs 35 surrounding hanger studs 36 and has a rubber seal 33. Stud 36 contains a safety cable 81 in case of breakage of the stud. Jacks 40, (41, Fig. 1) in the bottom compartment are arranged for simultaneous operation and are secured to box member (51) which is tiltably attached to the body by bolts (52), thus providing tiltability of casing 15 which has a rubber-seal 45. The body comprises side walls 16, 17 and vertical end walls (26, 27, Fig. 3) of complementary tongue and groove form for interengagement of adjacent identical panels, the walls being of metal and containing glass fibre insulation. The panel is moved, into position on the hangers, the jacks then extending the casings 15 to lift the panel and disengage the hangers.
Patent GB-1361446-A (GB)
Title: Process for the production of a reducing gas for use in a blast furnace
IPC: C21B5/00
Filed: 1971-09-02
Abstract: 1361446 Blast furnace operation SNAM PROGETTI SpA 2 Sept 1971 [3 Sept 1970] 41088/71 Heading C7D There is introduced into the furnace a supplementary reducing gas produced by partial combustion of a pre-heated fuel with a combustion-supporting gas pre-heated to at least the pre-heat temperature of the fuel and particularly to 800 -1500 C., the combustion products preferably being cooled either by passage through a steam-generating boiler or by introduction of a hydrogen-rich gas. Preferred fuels are methane, naphtha or fuel oil, and combustion with oxygen, or air with or with-  out oxygen enrichment, may be carried out so that the products contain carbon black which also passes to the blast furnace. The combustion may take place in a chamber separate from the furnace, or in a series of burners mounted in the furnace wall, when a coolant, particularly coke oven gas, may be introduced through tubes located immediately above the burners so that it mixes with the products. In one embodiment air blast passes alternately through Cowper stoves 2, 3, one part forming the normal blast through line 5 while the other passes to combustion chamber 9 where it meets pre-heated fuel from line 10. The products pass through heat exchanger 12 to main 14 and tuyeres 15.
Patent GB-1127590-A (GB)
Title: Homoplymerisation of ª‡-olefins
Inventor: DUCK EDWARD WILLIAM
IPC: C08F10/00
Filed: 1967-09-08
Abstract: 1,127,590. Homopolymerization of α-olefins. INTERNATIONAL SYNTHETIC RUBBER CO. Ltd. 8 Sept., 1967, No. 41144/67. Addition to 1,077,397. Heading C3P. α-Olefins are homopolymerized by contact with a catalyst system comprising (a) an organic compound of vanadium, titanium or zirconium, not containing a halogen atom bonded directly to the metal atom, (b) an aluminium trihalide or dihalohydride and (c) an alkyl, aryl or alkylaryl organo-metallic compound of lithium, (c) only being contacted with (b) in the presence of (a) or the α-olefin monomer. The preferred temperature range is - 10‹ to + 50‹ C. In the examples, the following α-olefines are polymerized:-ethylene, propylene, butene-1, heptene-1, 4-methyl-pentene-1, in a hexane solution under a nitrogen atmosphere, the catalyst system being (a) vanadyl tri-n-butoxide or titanium tetra-n-butoxide or zirconium tetra-n-butoxide or tetra-n-butyl titanate, (b) aluminium bromide or chloride and (c) lithium butyl.
Patent GB-1288271-A (GB)
IPC: A44B19/12
Filed: 1969-08-19
Abstract: 1288271 Sliding clasp fastener OPTI-HOLDING AG 19 Aug 1969 [27 Dec 1968] 41321/69 Heading E2S A sliding clasp fastner has rows of interconnecting elements formed from distorted helical coils of plastics filament. The coils have a long side 4 remote from the stringer tape, interlocking heads 5 at one or both ends of the elements, and connecting sections 7 between adjacent elements. The connecting sections 7, Fig. 4, may be flattened at 9 to assist attachment to the stringer tape. The elements may have a section, perpendicular to the length of the fastner which is either flattened with two semicircular ends or triangular with one semicircular end. The elements may have a core. The rows of elements may be attached to the stringer tape by insertion through slots, and/or weaving sewing or welding. (For Figures see next column)
Patent GB-917666-A (GB)
Title: An improved receptacle for cutlery or the like
IPC: A47B88/20
Filed: 1959-12-05
Abstract: 917,666. Cutlery boxes. HARPER, D. R. Dec. 5, 1960 [Dec. 5, 1959], No. 41386/59. Class 18. A cutlery box comprises a drawer frame 3 having sides 4 rebated at 5 within which rebates rods 6 extend, the ends of the rods being supported in recesses 7 in the front and rear walls of the drawer. Helical spring wires 8 having hooks 9 at each end pass through sleeves 10 formed in a sheet 11 which may, for example, be of wash leather or baize, the wires being stretched to allow engagement of the hooks 9 with rods 6. The wires 8 are so spaced that the sheet 11 forms a trough-like pocket between each adjacent pair of wires and the ends of each pocket are cushioned by strips 12 of foamed plastics material attached to the inner faces of the sides 4.
Patent GB-1504801-A (GB)
Title: Stabilisation of perchloroethylene
IPC: C07C17/42
Filed: 1975-10-09
Abstract: 1504801 Stabilized perchloroethylene WACKER-CHEMIE GmbH 9 Oct 1975 [18 Oct 1974] 41424/75 Heading C5D [Also in Division C2] Perchloroethylene is stabilized by the addition of (a) from 0À001 to 0À01% by weight of an N- alkylmorpholine optionally C-substituted by up to four additional alkyl groups and (b) from 0À001 to 0À1% by weight of an alkylphenol, percentages being based on the weight of perchloroethylene. The N-alkyl morpholine (a) may be N-methyl- or N-ethylmorpholine, and the alkylphenol (b) may be p-tert-butylphenol. N-methylpyrole, 1,3,5-cycloheptatriene or cyclooctatetraene, in an amount from 0À0005 to 0À001% by weight, based on the perchloroethylene, may be used as additional stabilizers.
Patent GB-1277832-A (GB)
Title: Device for superimposing a range scale on the display of the display unit of echo position-finding installations
IPC: G01S7/62
Filed: 1970-08-28
Abstract: 1277832 Radar FRIED KRUPP GmbH 28 Aug 1970 [29 Aug 1969] 41628/70 Heading H3D In a variable range scale radar or sonar P.P.I. display the same number of range rings are produced on the display irrespective of the range scale. Thus, in the radar embodiment shown, a timing pulse generator 13 continuously feeds its output N to the pulse divider 14 from whence the pulses, divided down by a factor selected by switch 10.9 and constituting range mark pulses M are fed, via pulse shaper 15, for addition to the video signal or passing to the display tube. The range mark pulses, each representing a range ring are counted by counter 16 and a "stop sweep" signal is produced when the required number of pulses is counted for resetting a bi-stable circuit 8. The circuit 8 is triggered by the trigger pulse K from the transmitter 7 which also synchronized the generator 13. The output of circuit 8 controls the sweep circuit 6 of the display via a range selection switch 10.6 ganged to switch 10.9. Additional range rings may be added using switch 18 and pulse shaper 19. The display tube has a coil assembly 4 rotating in synchronism with the aerial 1.
Patent GB-950220-A (GB)
Title: Process for the manufacture of polyvinyl alcohol of high molecular weight
IPC: C08F8/12
Filed: 1961-11-21
Abstract: Polyvinyl alcohol a 4% aqueous solution of which has a viscosity of more than 120 centipoises at 20 DEG C. is prepared by a process wherein vinyl acetate is polymerized in water in the presence of a bromate ion/bisulphite ion redox polymerization catalyst in the form of water-soluble alkali metal salts in which the concentration of the bromate ion is within the range 0.01 to 2.0 X 10-3 mols per mol of vinyl acetate and the concentration of the bisulphite ion is within the range of 0.05 to 5.0 X 10-3 mols per mol of vinyl acetate, and the resulting polyvinyl acetate is partially or wholly hydrolyzed. The vinyl acetate may be dispersed or emulsified in water in the presence of the bisulphite, and the bromate added thereto at such a rate as to maintain the desired reaction temperature.  In examples (I) vinyl acetate is polymerized in aqueous suspension in the presence of sodium bisulphite, potassium bromate and carboxyethyl cellulose, and the resulting polymer suspended in methanol and hydrolysed in the presence of (II) sodium methylate and (III) perchloric acid.
Patent GB-1309540-A (GB)
Title: Apparatus for making film from synthetic thermoplastic polymer
IPC: B29C55/28
Filed: 1971-09-07
Abstract: 1309540 Tubular films HERCULES Inc 7 Sept 1971 [29 Sept 1970] 41773/71 Heading B5B In a process for the production of films of synthetic thermoplastic polymers a polymer tube 1 is heated by heaters 4 and inflated to produce a tubular film 1a which is passed to wind-up and cutting means (not shown) via nip rolls 6, collasping rolls 5 and means for grasping the film externally and oscillating it in a plane perpendicular to its longitudinal axis, the oscillating means comprising a rotatable platform 12 (see Fig. 2) surrounding the inflated film at the point of its approximate maximum diameter and mounted on a stationary platform 11, a set of four idler rollers 14 supported on the platform 12 by brackets 13 and roller axles 15, said rollers 14 being laterally adjustable in slots 31a to grasp the inflated film at equally spaced points round its circumference and gear 19 adapted to coact with the serrated edge of rotatable platform 12 and driven via shaft 20, chain 21 and variable D.C. motor 22. In operation the rotatable platform is reciprocated so that the path of any thickness variation in the film is varied and gauge variations of the product roll of film are randomized over the width of the rolled up film. The production of polypropylene film is exemplified, the rotatable platform being displaced during its oscillations by 16 degrees.
Patent GB-993284-A (GB)
Title: Electric circuit breakers
IPC: H01H71/16
Filed: 1962-11-08
Abstract: 993,284. Automatic circuit-breakers. WESTINGHOUSE ELECTRIC CORPORATION. Nov. 8, 1962 [Nov. 15, 1961], No. 42188/62. Drawings to Specification. Heading H2B. The subject-matter is substantially identical with that of Specification 993,285 but the claims relate to the self-aligning of the breaker contacts.
Patent GB-1439048-A (GB)
Title: Metal complexes of bis-azomethines and processes for their manufacture
IPC: C08L1/00
Filed: 1973-09-11
Abstract: 1439048 Metal complexes of bis-azomethines for colouring polymers CIBA-GEIGY AG 14 Aug 1974 [11 Sept 1973] 42659/73 Heading C3P [Also in Division C4] 1 : 1 Metal complexes of bis-azomethines have the formula wherein R denotes alkylene of 2-8 C and is optionally interrupted by atoms other than carbon atoms, X denotes H or halogen or an alkyl, alkoxy, carboxyl, alkoxycarbonyl, carbamoyl, phenylazo, nitro or cyano group, and Y and Z denote H or halogen, or wherein Y and Z form a fused benzene ring and, if R contains an atom other than carbon, Y and Z must not both be H, and if R contains 2 C atoms, X, Y and Z must not all be H, and a metal. The complexes are useful as pigments for incorporation in a wide variety of plastics as melt or spinning solutions, lacquers, paints or printing inks.
Patent GB-1529297-A (GB)
Title: Self-aligned cmos process for bulk silicon device
IPC: H01L21/033
Filed: 1976-05-06
Abstract: 1529297 CMOS devices NATIONAL SEMICONDUCTOR CORP 6 May 1976 [8 May 1975] 42668/77 Divided out of 1529023 Heading H1K In the manufacture of a CMOS structure oxide and nitride layers 15, 16 are successively formed on an N-type Si substrate 13, openings are formed in the layers 15, 16 at areas other than those where source, drain and channel regions are subsequently to be provided, a mask 51 is provided to cover the future location of P- channel devices, and ions are implanted into the areas not so marked to form a shallow P- zone 14<SP>1</SP>. After removal of the mask 51 the structure is heated to drive-in the dopant from zone 14<SP>1</SP> to form P- region 14 (Fig. 15), and at the same time thick oxide forms on all unprotected Si areas. Source and drain regions 17, 17<SP>1</SP>, 21, 211 are formed by diffusion through apertures etched through layers 15, 16, and the nitride layer 16 is removed from over the gate regions of both MOS devices. Finally the source, drain and gate metallization 25, 26 is deposited and etched to shape.
Patent GB-1028900-A (GB)
Title: Improvements in simplified xerographic development
IPC: G03G15/08
Filed: 1963-11-01
Abstract: 1,028,900. Developing electrostatic latent images. RANK XEROX Ltd. Nov. 1, 1963 [Nov. 1, 1962J, No. 43201/63. Heading G2H. A covering of charged toner particles is held by electrostatic attraction on a donor member, which is brought into spaced relation with an electrostatic latent image and the force of attraction removed or reversed, so that the particles are repelled across the gap to develop the image. The use of a magnetic field to retain charged toner particles, containing a magnetic component, on the donor member is referred to. The electrostatic attraction is exerted through a dielectric layer by a chargeable backing layer and an earthed conducting grid of parallel lines or meshes is secured on the powder carrying face of the layer. As shown, a cylindrical photoconductive insulating surface 29 on a conductive backing 31 is positively charged by a corona discharge at 32 and exposed to a projected image at 33. An endless belt of p.t.f.e. is wound in the opposite direction between rollers 42 and 43, one of which is driven. The belt carries a conducting grid of parallel strips 50 spaced at 25-50 per inch, and joined by discrete bars 47 and 48 for making sliding contact with earthed strip 49. A positive charge is transmitted from roller 42 to conducting plates, such as 44, 45 and 46, carried within the endless belt and this charge is reversed by sliding contact with negative contact strip 51. Charged toner particles are attracted to brush bristles 39 which also provide them with a negative triboelectric charge. The particles are transferred to the endless belt by the greater attractive force of plates 44-46. On reaching contact strip 51, the charge on the plates is reversed in polarity and the particles are discharged towards the surface 29 to effect development of the latent image. The powder is transferred from surface 29 to a web of copy paper 52 on which it is fixed. A donor member in the form of a plate can, alternatively, be loaded with charged toner particles by tumbling a mixture of toner and carrier particles over it.
Patent GB-1060526-A (GB)
Title: Photographic materials
Inventor: ALSUP MICHAEL JOHN
IPC: B29C35/08
Filed: 1965-10-12
Abstract: Polypropylene is electronically bombarded so that its water contact angle (as defined in the Specification) is reduced from 90 degrees to between 54 and 40 degrees.ALSO:A paper support, which may be electrically bombarded to improve adhesive is coated on one or both sides with a polyproylene layer. One polypropylene layer, which may contain pigment such as titanium dioxide, is electronically bombarded so that its water contact angle is reduced from 90 degrees to between 54 and 40 degrees and hydrophilic layers adhere more readily to the treated layer.  A hydrophilic layer of gelatin, albumin, a polyvinyl compound or a cellulose derivative may be coated on the treated polypropylene layer.
Patent GB-1392128-A (GB)
Title: Differential mechanisms
IPC: F16H48/12
Filed: 1972-09-19
Abstract: 1392128 Differential gear; slip clutches ASPRO Inc 19 Sept 1972 [4 Aug 1972] 43293/72 Headings F2D and F2C In a differential including a pair of driven clutch members 4, 6 spring-biased into engagement with a central annular driving member 2, axially split resilient holdout rings 30, 32, which are operable when one of the driven shafts 12, 14 overruns the other for maintaining the corresponding driven clutch member in a disengaged position, are normally biased radially outwardly into frictional engagement with the outer wall of the recess in the driven member in which it is rotatably supported. As shown, the clutch members 4, 6 are formed with teeth 4a, 6a, engaging teeth 2a, 2b on the driving member 2, and with teeth 4b, 6b engaging teeth 20a, 20b on a cam member 20. A notch formed in the outer surface of the cam member 20 is engaged by a key on the inner periphery of the member 2 allowing limited angular movement of the cam member 20 relative to the member 2. The resilient holdout rings 30, 32 are formed with flanges 30a, 32a, engaging in recesses 4c, 6c in the clutch members 4, 6, and with axially extending teeth engaging in peripheral notches in the cam member 20. A break in the rings is engaged by the key on the member 2, the break being greater than the notch in the cam member 20 to allow greater angular movement of the rings relative to the member 2 than the cam member 20. In operation, when one output shaft (e.g. shaft 14) overruns the other, camming action between the cam teeth 20b, 6b on the cam member 20 and clutch member 6 causes shift of the clutch member, and of the ring 32, to the right thereby disengaging the clutch teeth 6a from the driving teeth 2b and the ring teeth from the notches in the cam member. The ring is rotated frictionally relative to the cam member 20, to a position in which the ring teeth are not adjacent a notch in the cam member and shifting of the clutch member 6 to the left is thereby prevented.
Patent GB-979902-A (GB)
Title: Improvements relating to azo dyestuffs which are difficultly soluble in water,and their use
IPC: C09B43/18
Filed: 1962-11-16
Abstract: The invention comprises dyes of the formula <FORM:0979902/C4-C5/1> wherein A represents a phenyl radical which, in o- or p-position contains at least one electrophilic substituent which does not dissociate acid in water, alkylene represents a low alkylene radical with up to four carbon atoms and acyl represents the acyl radical of an acylating agent. Electrophilic substituents are defined as nitro, cyano, trifluoromethyl, carbalkoxy groups having not more than 8 carbon atoms, unsubstituted, mono- and di-substituted carbamoyl amide groups with up to 8 carbon atoms, unsubstituted, mono- and di-substituted sulphonic acid amide groups wherein "amide" is a radical with not more than 8 carbon atoms, 1-nitrogen atom and 0 to 1 oxygen atom such as sulphonic acid dimethyl-, diethyl- or dibutyl-amide, phenyl-methylamide, piperidide and morpholide groups, phenoxysulphonyl and chlorophenoxy sulphonyl radicals with maximally 8 carbon atoms, keto groups with 2 to 8 carbon atoms, e.g. acetyl, propionyl, butyroyl and benzoyl groups and fluorine, chlorine and bromine atoms.  The examples relate to the preparation by appropriate acylation reactions of the dyes of the general formula given above in which the acyl radical is acetyl-, benzoyl-, propionyl, butyroyl, chloracetyl, p-methyl sulphonyl-, ethoxycarbonyl and methyl sulphonyl. The dyes are suitable for dyeing from aqueous dispersion hydrophobic textile fibres, e.g. of cellulose di- and tri-acetate, glycol terephthalates and synthetic polyamides.
Patent GB-1112913-A (GB)
Title: Alpha-fluoromethyl styrene
IPC: C07C22/08
Filed: 1965-10-13
Abstract: Alpha - (fluoromethyl) - styrene may be polymerized to high molecular weight products.ALSO:The invention comprises alpha-(fluoromethyl)-styrene and a process for making it by reacting the corresponding chloro- or bromo-methyl compound with AgF, KF, HgF2, SbF3 or SbF5.