baber/WOPTO huggingface dataset:
Patent GB-880381-A (GB)
Title: Improvements in toothed gearing
Inventor: HAFNER RAOUL
IPC: F16H1/06
Filed: 1957-07-08
Abstract: 880,381. Toothed gearing. BRISTOL AIRCRAFT Ltd. Oct. 8, 1958 [July 8, 1957], No. 21562/57. Class 80 (1). In gearing, particularly for a helicopter rotor, wherein the high torque carried by a small pinion 1 driving a wheel 5 causes slight bending and twisting of the pinion, thus giving it, for example, a concave profile, tooth contact across the width of the pinion is maintained by so constructing the wheel 5 that its rim 22 may deflect radially, under the influence of the radial component of pressure produced by the wedgeshaped (e.g. involute) teeth, to assume, for example, a convex profile 26, Fig. 4, mating with the concave pinion profile, means such as the flange 19 and cones 20, 21 being provided to maintain circularity of the rim in at least one plane to avoid large departures from correct pitch-line running. The radial deflections result in a full theoretical extent of tooth contact so that the gearing may be as light as possible. A suitable graduation of stiffness of the rim 22 across its width may be determined wholly or partly by calculation or experiment to give a uniform tooth pressure at all loads. The flange 19 may be rigid as in Fig. 4, or may be flexible, or be flexibly connected to the rim 22, to allow the rim to tilt, Fig. 3 (not shown). The flange may be at the edge of the rim but is preferably, as shown, near the middle thereof. In bevel or helical gearing the flange may be inclined, as at 19<SP>1</SP>, Fig. 4. If the driving pinion is overhung outside its bearings so that it deforms to a convex profile then the rim of the wheel 5 may be supported by two spaced webs. As a further feature the gear casing 9 may be weakened as at 17 to allow the pinion axis to deflect and thus maintain tooth contact at both ends, when there is unequal loading on the upper and lower bearings.
Patent GB-423441-A (GB)
Title: Improvements in the treatment of lubricating oils
Filed: 1933-08-01
Abstract: A lubricant suitable for internal-combustion engines consists of a lubricating oil in which is dispersed an organic compound of chromium.  About 1 per cent of an oil-soluble compound, e.g. chromium oleate, in a vegetable, mineral, or blended oil may be used. Specifications 295,230, [Class 91], and 398,222 describing lubricating oils containing organic compounds of tin and of lead are referred to.
Patent GB-336939-A (GB)
Title: Improvements in switch gear
IPC: H01H19/58
Filed: 1929-07-13
Abstract: 336,939. Graham Amplion, Ltd., Hodgson, A. D'A., and Holdway, G. July 13, 1929. Direct-call systems.-Comprises a multiple three-position switch, similar to that described in Specification 336,568, [Class 38 (v), Electric switches &c.], for use in a combined wireless and telephone system, of the kind described in Specification 336,562, for aircraft, speed boats and the like. Five double spring contact-arms 29, Figs. 1, 7, are mounted on a square shaft 11, which can be set to one or other of three positions by means of the handle 12, the rounded projections 32 fitting into cup-shaped contacts mounted in the insulating plates 13. The positions are for (1) wireless transmitting, as shown; (2) telephony within the vehicle (middle position), and (3) wireless receiving. The top arm 29 connects the telephones R, Fig. 7, to the side-tone coil ST in positions (1) and (2), and to the wireless receiver 61 in position (3). The remaining arms are disconnected in position (2), but in position (1) the l.t. battery 78, grid bias battery 68 and h.t. battery 74 are connected to the wireless transmitter. In position (3) the telephones R and l.t. battery 79 are connected to the wireless receiver 61, to which the battery 68 is also connected as a h.t. battery. The microphones T are energized by the battery 79 except when their circuit is broken at 56 by the locking of the switch in position (2), as described below. The position to which the switch has been set is indicated by the lighting-up of one or other of the lamps 42, 43, 44. When the switch is in the middle position, it can be locked by depression of the bolt 47, Fig. 5, the fork 47a engaging the stem of the handle 12. At the same time the microphone circuit is broken at 56, so that the whole of the apparatus is put out of action. The bolt 47 is moved against the restoring-spring 48 by the manually operated cam 51. The volume of tone from the receivers can be regulated by adjustment of the potentiometer P.
Patent GB-1478569-A (GB)
Title: Looptaker drive for sewing machine
IPC: D05B57/38
Filed: 1975-05-20
Abstract: 1478569 Sewing-machines SINGER CO 20 May 1975 [24 July 1974] 21670/75 Heading D1G The looptaker 55 mounted in a worksupporting, preferably swinging, bed 20 of a sewing machine is driven from the needle drive 70 through magnetically cooperating elements 66, 56 with an air-gap therebetween. As the C-shaped bed 20 swings round gearing 29, 31, 33, 38, 40, 42 maintains a throat plate 48 (having an opening 49 for zigzag stitching) correctly aligned with the needle. The looptaker 55, which may have one or more looptaking beaks may be driven in timed or untimed relation with respect to the needle.
Patent GB-259003-A (GB)
Title: Improvements in or relating to lamp brackets or like supporting means
IPC: B62J6/02
Filed: 1925-08-29
Abstract: 259,003. Pugh, J. V., and Rudge- Whitworth, Ltd. Aug. 29, 1925. Vehicle lamp supports.-Six rod-like members form a frame in which two similar angular side trusses b, b<1> attached to a base on the vehicle, support the lamp pivotally adjustable between the extremities of their extending angles, while a third angular truss g gl, transversely disposed between the side trusses and connected to the same attachment means, supports the rear end of the lamp in a manner to allow of the pivotal adjustment. In the form shown, the entire frame is formed from one length of bent wire or the like, the ends of the side trusses being formed with eyes a, f to engage the shackle bolts of the front forks of a motor cycle. The lamp is provided with trunnions d mounted in the eye-slots c of the side trusses and with a screw or other connection passing through a guide h in the transverse truss so that it can be adjusted in a vertical plane and be secured in adjusted position by a nut j or other clamping means, while slight adjustment in a horizontal plane is allowed by movement of the trunnions d in the slots c. In other forms, the trusses are each made of one or two pieces. The eyes &c. may be pressed to a flattened section.
Patent GB-958979-A (GB)
Title: New epoxy-ethers and their manufacture and use
IPC: C08K5/1515
Filed: 1961-06-15
Abstract: The invention comprises saturated asym -metrical epoxy-ethers ROR1 in which R represents a 5:6-epoxybicyclo-[2,2,1]-heptyl, a 3:4-epoxytricyclo-[5,2,1,02:6]-decyl or 6:7-epoxy-1:4:5:8-dimetheno-decahydronaphthyl group and R1 represents an epoxidated unbranched or branched alkyl radical, particularly epoxypropyl, epoxybutyl or epoxyethyl hexyl.  The novel compounds may be made by epoxidation of an aliphatic unbranched or branched alkenyl ether of dehydro-norborneol, tricyclo [5,2,1,02:6]-decen-D 3:4-ol-9, or 2-hydroxy-1:4:5:8-dimetheno-D 6:7 -octahydronaphthalene.  The epoxidation may be effected with per-acids, e.g. peracetic, in an inert solvent, or with hydrogen peroxide in the presence of a carboxylic acid and an acid catalyst, with hydrogen peroxide in the presence of bases and catalysts such as sodium tungstate, and also with organic percompounds such as t-butyl hydroperoxide. Temperatures of 0 DEG  to 40 DEG C. are suitable. The unsaturated ether starting materials may be made by etherifying the appropriate polyolic olefinic alcohol with an aliphatic unsaturated alcohol, e.g., allyl alcohol, crotyl alcohol, or 2-ethylhexanol.  The ethers are also made by reacting alcoholates of the polycyclic olefinic alcohols with appropriate aliphatic olefinic chlorides, such as allyl chloride, crotyl chloride or 3-chlorobutene-1, or by reacting the alcohols with the chlorides in the presence of strong bases.  Another method comprises reacting the aliphatic olefinic alcohols with dicyclopentadiene, bicycloheptadiene or 1:4; 5:8-dimetheno-D 2:3; 6:7-hexahydronaphthalene in the presence of a Lewis acid.  Detailed examples are given.ALSO:Epoxy compounds of the formula ROR1 wherein R represents a 5:6-epoxybicyclo-[2, 2, 1]-heptyl, a 3,4-epoxy-tricyclo-[5, 2, 1, 02:6], decyl or 6, 7-epoxy-1, 4, 5, 8-dimethano-decahydronaphthyl group and R1 represents an epoxidated unbranched or branched alkyl radical, are hardened with known hardening agents for epoxy resins, for example anhydrides of polybasic carboxylic acids.  In examples, the 2:3-epoxybutyl ether of 3:4-epoxytricyclo [5, 2, 1, 02:6] decanol-9 is hardened with pyromellitic anhydride, or maleic anhydride with the addition of ethylene glycol, pentaerythritol or trimethylol propane.
Patent GB-984514-A (GB)
Title: Protection of organic materials against attack by fungi or bacteria
IPC: C08K5/20
Filed: 1962-06-05
Abstract: An emulsion paint comprises polyvinyl acetate, chalk, titanium dioxide and a solution of 4-chloroacetyl-acetanilide (bactericide) in ethylene glycol monomethyl ether and dimethyl-formamide.ALSO:A process for protecting organic materials from attack by bacteria and possibly also by fungi comprises incorporating in such materials or applying as a surface coating thereon an aromatic amide or sulphonamide derivative of the formula <FORM:0984514/A5-A6/1> where n is 0 or 1; Y1 is hydrogen or a chlorine atom; Y2 is hydrogen where Y1 is chlorine, or is hydrogen or chlorine where Y1 is hydrogen; Z is hydrogen or the chloroacetyl group -COCH2Cl; R, when n is 0, is an alkyl, monochloroalkyl or polychloroalkyl radical having 1 to 3 carbon atoms, a phenyl radical, a monochlorophenyl or polychlorophenyl radical, an amino group, an alkylamino radical having at most 5 carbon atoms, a dialkylamino radical having in total at most 5 carbon atoms, a phenylamino radical or a phenylamino radical monosubstituted by a chloroacetyl group, and R, when n is 1, is an alkyl, monochloroalkyl or polychloroalkyl radical having 1 to 3 carbon atoms; and X is a -CO- group when R is other than an alkyl or chlorinated alkyl radical, and a -CO- group or a -SO2- group when R is an alkyl or chlorinated alkyl group.  Many examples of the active ingredients are given, of which the following are typical:- 4 - chloroacetyl - acetanilide, 4 - chloroacetyl-(p - chlorobenzoyl) - anilide, 4 - chloroacetylmethylsulphanilide, N - (n - butyl) - N1 - (4 - chloroacetylphenyl) - urea, 4 - chloroacetyl - 41 - acetamido - diphenyl ether and 4 - chloroacetyl - 41 - methanesulphonamido - diphenyl ether.  Materials which may be protected include cellulose, wood, paper, leather, synthetic resin products, lacquers, paints, plasticizers and vegetable or animal mucilages and gels.  The active ingredients can be used in the form of solutions in organic solvents, e.g. ethylene glycol monomethyl ether and dimethylformamide.  They may also be used together with other fungicidal and/or bactericidal substances, e.g. halogenated salicylic acid alkylamides and anilides, halogenated diphenylureas, halogenated benzoxazolones, polychlorohydroxy diphenyl methanes and halogenated dioxy-diphenyl sulphides.  Combinations specified are 4-chloroacetyl-acetanilide or 4 - chloroacetyl - 41 - chloroacetamido - diphenyl ether with 3 - trifluoromethyl - 4,41 - dichlorodiphenyl urea or 3,4,41-trichloro-21-hydroxy diphenyl urea; and 4-chloroacetyl-41-chloroacetamidodiphenyl ether with 2-hydroxy-3,5-dichlorobenzoic acid-31,41-dichloroanilide or with hexachlorophene.
Patent GB-244681-A (GB)
Title: Improvements in automatic stops for railway wagons
IPC: B61K7/22
Filed: 1925-08-31
Abstract: 244,681. Nohse, C. Aug. 31, 1925. Axle stops.-In an axle stop of the kind comprising a lever f engaged by the first axle of a wagon to throw up the catch d which engages and holds the second axle at excessive speeds, the lever f is mounted on a pivot e which is adjustable with respect to the pivot c of the catch d. The catch d is engaged by a pin h which is carried by the lever f and may be adjusted with respect to the pivot e. The catch d engages stops i, k on the base a.
Patent GB-1300681-A (GB)
Title: Improvements in and relating to a clamp for a workpiece
IPC: G21C21/04
Filed: 1971-04-19
Abstract: 1300681 Fuel elements BELGONUCLEAIRE SA and CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE 19 April 1971 [18 Feb 1970] 21808/71 Heading G6C A nuclear fuel element is formed by the vibro-compaction of fuel powder in a can, the can being secured to a vibrator by a body provided with sliding blocks, the clamping action of which is effected by a force acting perpendicularly to the direction of the vibration impacts. One form of clamp, shown in Fig. 1, comprises a steel cylindrical body 1 formed with a cylindrical bore 2 and a rectangular channel 3 milled diametrally and thus perpendicular to the clamp axis. One end of a can 4, to be filled with fuel powder, is inserted in the bore 2 and the sliding blocks 6 are located in the channel 3, one on each side of the can 4. A conical recess 7 in the body 1 facilitates the centering of the can 4. The inner parts of the blocks 6 are provided with a flexible material 8 of high friction coefficient, such as rubber. The clamping of the cam 4 is effected by the blocks 6 which are maintained in position by a mechanical clamping force 9. The direction of the impacts generated by the vibrator is shown by arrow 11. In an alternative construction (Fig. 3, not shown), clamping is effected by two profiled jaws guided in channel 3 by the blocks 6, the profiling of the jaws corresponding to that of the plug at the lower end of the can 4. This type of clamp can be adapted to plugs of different profiles by replacing the jaws. Further, if desired the blocks 6 may be profiled directly, thus eliminating the jaws.
Patent GB-678540-A (GB)
Title: Improvements in or relating to the roofs of metallurgical furnaces
IPC: F27D1/00
Filed: 1950-09-05
Abstract: 678,540. Furnace roofs. HEUER, R. P. Sept. 5, 1950, No. 21902/50. Class 51 (ii). The roof of a metallurgical furnace, e.g. a steel melting or copper smelting furnace is constructed of acid bricks and non-acid bricks so that areas of the non-acid bricks are spaced apart along the roof with acid bricks between such areas, each of said areas comprising a set of bricks extending transversely of the roof. The invention is shown applied to an open hearth furnace roof, Figs. 2 and 3, in which a preponderant part 5 of the roof area is formed by silica bricks in a conventional manner, but rising from the rear skewback 6 are alternate sections 7, 8, 9 and 10 of key bricks containing chrome ore and magnesite and sections 11 of silica filler bricks. The roof may be thickened in the immediate vicinity of the skewback to form a shoulder or the skewback and a continuous length of adjacent bricks may be made of non-acid material. The transverse lengths of the non-acid sections may be varied as shown along the roof and each section may comprise more than a double course of bricks. The roof near the front skewback, particularly over the furnace doors, may also have the alternate construction. Conventional steel spacer plates are used with the non-acid bricks, care being taken that no joint between an acid and a non-acid brick is provided with such a spacer plate. U.S.A. Specification 2,304,170 is referred to.
Patent GB-752206-A (GB)
Title: Improvements in or relating to high frequency dielectric heating apparatus
IPC: H05B6/80
Filed: 1954-07-27
Abstract: 752,206. Dielectric heating. RAYTHEON MANUFACTURING CO. July 27, 1954 [Nov. 12, 1953], No. 21955/54. Class 39(3). High frequency energy for heating food within an oven 19 is produced by a magnetron 10 coupled to the oven by a wave guide 16 and radiating horn 18, and the combined thickness of a support 21 and the bottom of a container 42 which are of dielectric material, is such as to produce an impedance match between the horn and the container. To prevent damage to the magnetron by excessive reflection of energy from the top of the oven when no material is being heated, an aperture 43 in the form of crossed slots is provided in the oven top, the energy being absorbed by a concrete asbestos block 46. Means for varying the mode intensity pattern so as to avoid local hot spots in the material being heated comprises a plate member 53 a symmetrically mounted on a rotatable insulating rod 45 and having a slot 59 whose length is of the order of half a wave length of the operating frequency of the magnetron 10. A lamp 49 mounted on a wall of the horn 18 shines up through the support 21 and container 42 enabling the container contents to be viewed through the transparent top 48 when the oven door 23 is slid back, Fig. 1. The oven is of ceramic coated metal and cyclic frequency variation of the radiated energy may produce mode variation. The oven 19 may be dispensed with and relays may be used to protect the magnetron against excess reflection of energy. A safety interlock switch system may be provided to de-energise the magnetron when the oven door is opened.
Patent GB-1513547-A (GB)
Title: Joint or seal or use in high temperature systems
IPC: F27B7/24
Filed: 1975-05-16
Abstract: 1513547 Pipe joints I G NIXON 16 May 1975 [17 May 1974] 21991/74 Heading F2G In a gas-tight joint, a seal 10 uniting two parts 12, 14 of a high temperature system is insulated from high temperature reactants of the system by the interpositioning of a cooling zone 6 wherein a cooling fluid is circulated to protect the seal. An insulating shroud assembly 6 providing an annular space wherein cooling fluid e.g. water is introduced may be formed integrally with a reactant conduit 14 and fixably or rotatably connected through a stuffing gland seal 10 to a supply vessel outlet 12 of fluid e.g. air; oxygen; hydro carboncarbon dioxide mixtures subsequently to be introduced into the system as a reactant may be used initially as the cooling medium. In an alternative embodiment, the seal has the form of a metal e.g. stainless steel bellows providing a flexible coupling between joined members and insulated as described from the reactants carried therein. The seals used on the various embodiments may be provided at a periphery with an auxiliary cooling means e.g. a water jacket or external cooling fins.
Patent GB-1042134-A (GB)
Title: Non-woven textile fabrics
Inventor: MELDRUM JOHN IRVING
IPC: D04H3/045
Filed: 1962-06-07
Abstract: 1,042,134. Uniting threads and cords by adhesive. COURTAULDS Ltd. June 6, 1963 [June 7, 1962], No. 22030/62. Heading D1K. [Also in Division B5] Yarns are delivered from a linear group of equally spaced feed points 3 in a wave form of substantially constant wave length, exceeding the distance between the outermost feed points by about the distance between two adjacent feed points, the yarns being secured together in this position. As shown, a carriage 1 carries yarn guides 2 which terminate in feed points 3, each receiving a yarn from a bobbin on a creel. Carriage 1 is reciprocated along rails 5 between extreme positions in which feed points 3 are above one of the moving endless chains or belts 6, 6a  which carry hooks 8 to engage the yarns. The yarns slip off hooks 8 as they round pulleys 71. The yarns may be treated with adhesive before laying or by passing the lattice through an adhesive bath or spray while still carried on hooks 8, the structure may be heated and/or pressed between rollers. Two or more layers of yarns may be superimposed. Alternatively, a layer of plastic 10 is fed from roll 9 between belts 6, 6a and passes with the lattice between rollers 11, 12, thermoplastic material being fed to the nip between the rollers so that a composite material 15 is formed. The yarns may be laid at an angle of 45 degrees to the longitudinal axis or at 60 degrees with further yarns laying parallel to the axis to hold the yarns in place and enable the plastic to extend to the edges of the fabric. The lattice may be used as a reinforcement for sheet material as described in Specification 1,042,135.
Patent GB-246748-A (GB)
Title: Improvements in or relating to reversing gear for internal combustion engines
IPC: F01L13/00
Filed: 1925-09-03
Abstract: 246,748. Harvey, E. W., and Smollett, A. Sept. 3, 1925. Reversing.-In order to adjust the cam shaft angularly for reversing, it is driven from the crank shaft by a gear train comprising intermediate wheels 3, 4 mounted eccentric to one another on a carrier 9 movable in the plane of the wheels to bring either of them into the gear train. The carrier 9 slides in a recess 18 and is moved by means of a link 12.
Patent GB-622287-A (GB)
Title: Improvements in or relating to jacquards
IPC: D03C3/02
Filed: 1946-07-24
Abstract: 622,287. Jacquards. HARDAKER, H., BOON, T. D., NEWBOULD, E., ASHWORTH, J., and FIRTH, A. July 24, 1946, No. 22074. [Class 142 (i)] A double lift double cylinder Jacquard is fitted with uprights 5, 6, having the distance between the top of the uprights and the eyes 4 of the needles 1 constant throughout the set of.uprights. The tops 7 of the uprights, the griffe bars 12, the eyes of the needles 4 and the spring bars 11 are arranged in parallel inclined planes. The lower parts of the uprights are formed into hooks 8 and the ends 9 engage bottom grate bars 10. Each eye 4 controls a pair of uprights 5, 6 and each pair of uprights are connected by a link 14 which automatically rides up one lower hook 8 as the other upright is raised. The needles or, double uprights can easily be withdrawn.
Patent GB-201054-A (GB)
Title: Improvements in a folding paper cup
IPC: B65D3/06
Filed: 1922-08-14
Abstract: 201,054. Rogers, F. H, (Vortex Mfg. Co.). Aug. 14, 1922. Paper and like bags.- -Folding paper cups, when flattened, have two sides each of truncated sector shape and so creased as to ensure that pressure on the cup edges will open the cup. A blank, Fig. 4, of approximately sector form but with an extension flap 5 has the apex or centre cut away to form a recess 7 bounded by three curved lines convex towards the point and terminating on lines 8, 3, which may or may not be creased or scored. Adhesive is applied to the flap 5, to the point between the lines 8, 15, 3, and preferably to the corresponding area at the point on the opposite face of the blank. The blank is folded on the line 8 so that the edge 2 coincides with the line 3, the flap 5 is folded over and pressed upon the edge 2, and the rounded point 12 thus produced is folded backwards on the line 15 against the back of the cup, in the manner shown in Fig. 2, and preferably secured thereto. Additional lines 9, 10 are creased or scored in the blank and facilitate the opening out of the cup to approximately conical form when pressure is applied to the edges 3, 8 of the cup in its folded or flat form.