baber/WOPTO huggingface dataset:
Patent GB-497095-A (GB)
Title: An apparatus for producing magnetic figures to indicate the disposition of magnetic fields
IPC: G01N27/84
Filed: 1937-06-16
Abstract: 497,095. Magnetic tests. UNGER, F., and HILPERT, R. S. June 16, 1937, Nos. 16728 and 16729. Convention dates, June 17, 1936 and Jan. 15, 1937. [Class 37] Apparatus for indicating the disposition of a magnetic field, e.g. in magnetic tests, comprises a suspension of ferromagnetic particles in a fluid enclosed in a testing vessel made partly or wholly flexible, whereby the vessel may make better contact with articles to be tested for faults. The vessel may be made of thin metal, celluloid, artificial resin, artificial glass or of other synthetic substances, and of any convenient shape. Fig. 1 shows a shallow testing vessel g having an opaque bottom u and a transparent top o completely filled with, for example, ferromagnetic particles suspended in water, and provided with an expansion vessel A to avoid undue liquid pressures when the vessel is distorted. The bottom u may alternatively be transparent in which case a lightsensitive film may be disposed between the article under test and the bottom u, and illuminated through the vessel for photographing the field pictures, although with suitable suspensions the field pictures remain for some time and may be photographed after removal of the test vessel from the article under test. In testing a welded joint s, Fig. 2, between plates w, the vessel g is placed over the weld and the plates w magnetized by a permanent magnet m placed as shown or on the opposite side of the plates w. Welded angle joints, or an annular flange weld s<1>, Fig. 4, &c. are tested by a vessel g<2>, shaped to fit the angle, and an electromagnet e with pivotally adjustable polepieces p<1>, p<2> is used to magnetize the test piece. A shaft may be tested by applying a curved vessel to the periphery thereof and magnetizing the shaft by passing D.C. or A.C. therethrough. For testing grooved objects, the test vessel has a curved bottom f, Fig. 6 ; the suspension is located between the bottom f and an intermediate bottom z, and a transparent liquid is provided between the bottom z and a transparent lid d, to prevent dazzle effects in viewing the field pictures. A.C. is preferably used for indicating surface defects in test pieces and D.C. for deeper seated defects. The suspension may be caused to flow through the testing vessel. According to the Specification as open to inspection under Sect. 91, the ferromagnetic particles which may be iron, or oxide or sulphur compounds of iron, preferably those containing combined water, are suspended in any suitable fluid, for example, air or water. If water is used, the settling rate is varied by adding electrolytes or non-electrolytes thereto, if gas is used the settling rate is controlled by varying the mixture, pressure, temperature, &c, This subject-matter does not appear in the Specification as accepted.
Patent GB-279746-A (GB)
Title: Improvements in or relating to stuffing boxes for centrifugal pumps
IPC: F04D29/10
Filed: 1927-06-23
Abstract: 279,746. Weyland, G. June 23, 1927. Boxes; cooling; stuffing-boxes, substitutes for. -A stuffing-box b for a centrifugal pump delivering high pressure and high temperature water, has a water-jacketed, throttling-passage c provided in front of it. An air chamber f which may contain heat-insulating material is provided between the jacket e and the leak-water chamber a in front of the passage c.
Patent GB-262046-A (GB)
Title: Improvements in the manufacture of pipes from fibrous cement sheeting
IPC: B28B21/72
Filed: 1926-07-05
Abstract: 262,046. Sutton, G. R. Nov 30 1925, [Convention date]. Moulding hollowware and pipes and tubes.-Pipes for withstanding liquids or gases under pressure are formed by applying plastic layers of fibrous cement sheeting to a core and compressing the material upon the core by winding thereon a flexible cord or wire under high tension. As shown, asbestos-cement sheeting 2 is applied to a rigid core 3<A> and is covered by a flexible cord, wire &c. 6 wound spirally thereon under tension with the coils in close proximity. A spiral reinforcement 7 of metal ribbon or wire or asbestos cord may be applied after one or more convolutions of the material 2, further convolutions being applied over the reinforcement. The material 2 may be applied as a sheet or as a spiral strip. A collapsable core is preferably employed. The Specification as open to inspection under Sect. 91 (3) (a) states that the invention is applicable to hollow bodies other than pipes. This subject-matter does not appear in the Specification as accepted.
Patent GB-649060-A (GB)
Title: Printing apparatus and process
IPC: B41M1/12
Filed: 1948-06-23
Abstract: <PICT:0649060/III/1> <PICT:0649060/III/2> <PICT:0649060/III/3> <PICT:0649060/III/4> <PICT:0649060/III/5> For printing by the method in which ink passes to the web under the action of electric lines of force a printing-cylinder is employed in which ink is fed to the space 23 between a metal cylinder 24 and a concentric cylinder 21 which is formed with perforations 22 through which ink can pass to a porous outer covering formed of laminated layers of materials which are spirally wound around the cylinder 21 and are non-frangible.  The first layer consists of a coiled spring 32, Fig. 6, of rectangular cross-section and formed with a serrated upper surface, and wound under tension with the coils spaced apart a slight distance. Over the spring 32 is wound with opposite thread a strip 34 of fine mesh perforate material such as bronze screen or fibre glass, and a further similar layer 35 which is wound in opposite direction to the strip 34.  The surface of the cylinder 21 is also serrated at 21a. An impermeable layer 36 to form a design is applied to the outer surface 35 by known means, and an ink supply is connected to the space 23 from a pipe 26 and conduits which pass through a disc 20 in which the cylinders 21, 24 are mounted. The ink is retained in the outer layers 34, 35 by capillary action but is expelled when a source of potential is connected from conduits 51, 45 to plates 41, 48 fitted with repulsion and attraction blades 42, 49 which are arranged radially of the cylinder 24, and extend substantially half-way round the cylinder.  The web 52 extends around half of the cylinder and is subjected to electric action over a large area for a comparatively long period so that low voltages can be used.  In a modification the feed of the web is assisted by means of a pair of rollers acting at each edge of the cylinder on a narrow width of web, the rollers being provided with helical feed surfaces which maintain the web taut laterally.  In a further modification, Fig. 10, a pair of plain feed rollers 60 are used extending across the cylinder, and gaps are provided in the electrical attraction and repulsion elements, which are fitted with pins 56, 58 staggered in a direction axially of the cylinder, so that a substantially continuous electric field is formed over a wide area and extending the complete width of the web.  The apparatus may be used to apply a continuous coating instead of a design.  Specification 636,907, [Group XVI], is referred to.
Patent GB-554446-A (GB)
Title: Improvements relating to liquid fuel injection nozzles for internal combustion engines
IPC: F02M61/20
Filed: 1941-12-31
Abstract: 554,446. Fuel-injectors. C.A.V., Ltd., EVANS, F. M., and NICOLLS, W. E. W. Dec. 31, 1941, No. 16846. [Class 7 (iii)] A fuel-injection valve b is opened by the fuel pressure admitted at f against the action of a closing-spring d when the fuel pressure is low, as at starting; but when the fuel pressure exceeds a predetermined amount, it opens an auxiliary valve and acts through a passage i on the rear end of a plunger g bearing on the spring, thereby increasing the spring pressure tending to close the valve. The action of the pressure transmitted through the plunger g is limited by the engagement of a ftange m with a stop n.
Patent GB-716675-A (GB)
Title: Improvements in or relating to polymerization process
IPC: C08F222/14
Filed: 1952-07-04
Abstract: Aliphatic monohydric alcohol esters of a , b -unsaturated polycarboxylic acids or anhydrides are catalytically copolymerized in bulk or solution with another monomer in the presence of more than 0.02 per cent. but less than 5 per cent. of a strong acid.  The esters are derived from C1 to C18 aliphatic alcohols and mixtures of average chain length greater than 7.5 and acids such as fumaric, maleic, citraconic, mesaconic, itaconic and aconitic. Copolymerizable monomers specified are vinyl acetate and butyrate, isopropenyl acetate, a -chlorovinyl acetate, styrene, a -methyl styrene and acrylonitrile preferably in from 2 to 40 per cent. of the total monomers.  The strong acids used may be sulphuric, hydrochloric and phosphoric acids, petroleum and toluene sulphonic acids and related acids derived from atoms in the same groups as sulphur and phosphorus.  The catalyst is preferably of the peroxy type and listed are benzoyl, hydrogen and lauroyl peroxides, cumene, urea and t-butyl hydroperoxides, potassium and ammonium persulphates and t-butyl perbenzoate.  Redox systems, such as benzoyl peroxide, benzoin and ferric laurate may also be utilized.  The copolymerization mixture may also contain a C8 to C18 alcohol, e.g. in from 2 to 7 per cent. by weight of the monomers.  In solution polymerization the solvents specified are naphtha, lubricating oil fractions, white oils, benzene, toluene, chloroform, carbon tetrachloride, ethers and esters.  The copolymers are blended with lubricating oils to improve their pour points and viscosity indices and examples illustrate the depression of the pour point of a Mid-Continent oil.  Specification 708,669 is referred to.ALSO:Pour point depressants and viscosity index improvers for lubricating oils are prepared by copolymerizing esters of a , b  unsaturated polycarboxylic acids or anhydrides with other monomers in the presence of a catalyst and more than 0.02 per cent. but less than 5 per cent. of a strong acid.  The esters are derived from C1 to C18 aliphatic alcohols and mixtures of average chain length greater than 7.5 and acids such as fumaric, maleic, citraconic, mesaconic, itaconic and aconitic. Copolymerizable monomers specified are vinyl acetate and butyrate, isopropenyl acetate, a -chlorovinyl acetate, styrene, a -methyl styrene and acrylonitrile preferably in from 2 to 40 per cent. of the total monomers.  The copolymers are used in proportions of 0.001 to 10 per cent. and concentrates containing up to 90 per cent. of the copolymer may also be obtained.  Extreme pressure agents, oxidation inhibitors, other pour point depressants and viscosity index improvers, oiliness agents and corrosion inhibitors may also be incorporated in the blends.  The examples illustrate the depression of the pour point of a mid - continent oil.  Specification 708,669 is referred to.
Patent GB-458359-A (GB)
Title: Improvements in the manufacture of saccharates
IPC: C08B37/00
Filed: 1935-06-12
Abstract: In the manufacture of alkaline earth saccharates by the polymerization of formaldehyde by means of reddish-orange light in the presence of an alkaline earth, as described in Specification 374,044, ethylene or an ethylene-containing gas is passed through the mixture and serves to remove water from the saccharate formed with production of ethyl alcohol.  The Specification as open to inspection under Sect. 91 also describes the addition of a small quantity of trioxymethylene, paraldehyde or metaldehyde to the formaldehyde to assist its polymerization, and states that by adding 0,1 per cent of trioxymethylene, the formaldehyde is polymerized immediately in the presence of the milk of lime, even in the absence of light. The production of alkali saccharates by the foregoing methods is referred to.  This subject-matter does not appear in the Specification as accepted.ALSO:In the manufacture of alkaline earth saccharates by the polymerization of formaldehyde by means of reddish-orange light in the presence of an alkaline earth, as described in Specification 374,044, ethylene or a gas containing ethylene is passed through p the mixture and serves to remove water from the saccharate formed with production of ethyl alcohol.  The Specification as open to inspection under Sect. 91 also describes the addition of a small quantity of trioxymethylene, paraldehyde or metaldehyde to the formaldehyde to assist its polymerization, and states that by adding 0,1 per cent. of trioxymethylene, the formaldehyde is polymerized immediately in the presence of milk of lime.  The production of alkali saccharates by the foregoing methods is referred to.  This subject-matter does not appear in the Specification as accepted.
Patent GB-401403-A (GB)
Title: Improvements in rowing or sculling apparatus
IPC: A63B21/015
Filed: 1932-06-15
Abstract: 401,403. Exercising-apparatus. COLEMAN, A. H. and WARD, H., Watcoben Works, Stebbing Street, Notting Hill, London. June 15, 1932, No. 16953. [Class 132 (i).] A rowing-machine of the kind in which the imitation oars are adapted to be pulled against a resistance is characterised by a spring friction clutch such that in one direction of motion the spring expands to give free movement and in the other contracts upon the member movable by the imitation oar to impart resistance to such movement. As shown, the sculling handle a is secured to a socket b rotatable freely in one direction upon the member c carried by the outrigger d. A helical spring e coiled within the socket b surrounds the member c and has one end f extended axially and passed through a hole in the upper part of the socket b. Movement of the handle a away from the user expands the spring e to give free movement, but movement towards the user contracts the spring e on the member c which is moved against the resistance provided by the friction material g, which resistance may be adjusted by the screw h. The socket b is secured on the member c by a bolt i.
Patent GB-1018491-A (GB)
Title: Improvements in and relating to polyacrylonitrile filaments
Inventor: CLIMIE IAN ERNEST
IPC: D01D5/22
Filed: 1961-05-10
Abstract: A crimpable polyacrylonitrile filament is made by extruding a polyacrylonitrile solution through a jet-hole which imposes an asymmetric velocity profile on the solution, into a coagulant, the asymmetric velocity profile generating two collateral zones in the spinning solution which are subjected to different extrusion ratios, the zones subsisting in the coagulated filament as zones of different degrees of orientation.  The cross-sectional shape of the filament may be similar to that of the jet-hole, which is preferably keyhole-shaped.  Yarn spun from such filaments may be bulked by relaxation in water at at least 80 DEG C which causes crimps, the intensity of which may vary, in the filaments. Crimpable filaments so made are chemically homogeneous and have two collateral zones, the polyacrylonitrile material in one zone being orientated to a greater extent than that of the other zone, and may have an axis of symmetry in its cross-section, the zones being opposed to each other at the extremes of the axis. Acrylonitrile homopolymers, and copolymers containing at least 80% acrylonitrile, preferably 90-95%, with styrene, methyl acrylate, itaconic acid, methallyl sulphonic acid and its salts, vinyl acetate, and vinyl pyridine, may be used.
Patent GB-885916-A (GB)
Title: A method of and apparatus for delivering cans to a wrapping machine
IPC: B65B59/00
Filed: 1959-05-14
Abstract: 885,916. Endless conveyers for cans. CONTINENTAL CAN CO. Inc. May 14, 1959 [Nov. 20, 1958], No. 17037/61. Divided out of 885,915. Class 78 (1). [Also in Group XVII] The invention concerns the means for separating groups of cans for packaging, in the machine of Specification 885,915. The rows of cans 30, moved forward by the conveyer chains 31 (Figs. 1, 2, not shown) are halted by opposed primary stops 35 which advance across their path. Pairs of stops 61, 69 now enter the rows to demarcate a package group and the stops 35 withdraw. The stops 61, 69 check oncoming cans while dogs 117 on opposed chains 110 forward the group and a wrapper 119 draped over it, to the means for completing the wrapping operation (not shown). The stops 61, 69 retract and the can rows move forward to be restrained by blocks 121 on the chains 110 until they contact the again advanced stops 35. The stops are adjustable to permit handling of various can groups and sizes. Specifications 854,300 and 871,045 also are referred to.
Patent GB-1244433-A (GB)
Title: An article of furniture
Inventor: MIETZKER WOLFGANG
IPC: A47C17/26
Filed: 1969-04-02
Abstract: 1,244,433. Rotatable mattresses. W. MIETZKER. April 2, 1969 [April 5, 1968], No. 17142/69. Headings A4H, A4J and A4M. A mattress 10 which is mounted about an axis 11 eccentric to its longitudinal centre axis for rotation about 180 degrees is adapted to move transversely during rotation. For transverse movement, a freely rotating roller 14 on the end of the axle 11 moves along a guide rail 13 which is positioned at the foot and/or head end of a bed. The mattress may be locked in position by a spring snap-lock, a spring bolt, or by the co-operation of projections 14b and 14c on a lug 14@ with locking pawls 15 and 16. An electric motor Fig. 2 (not shown) may be used to rotate the mattress. The mattress body 10 has a rectangular steel frame 10a which may be of V-section iron in which is tensioned a mesh 10b having springs 10c and 10d on both sides or a cushion of foam. Pockets may be provided on the longitudinal sides of the upholstery material, the pockets being used for tucking in the bed clothes. Accessories such as radios and lamps may be mounted at the head and/or foot end of the bed. Preferably the accessories are built into hollow end portions 7 and 9 of the bed.
Patent GB-152942-A (GB)
Title: Improvements in or relating to distributing and draw-in boxes for electrical installations
IPC: H02G3/08
Filed: 1919-07-17
Abstract: 152,942. Bakker, A., and Bureau voor Uitvinders. Oct. 24, 1918, [Convention date]. Addition to 134,195, Drawings to Specification. Junction boxes.-In distributing and draw-in boxes as described and claimed in Specification 134,195, the bottoms and middle pieces are made separately and mutually interchangeable, thus enabling various types of such boxes to be made from a small stock of parts. The parts may be relatively rotatable.
Patent GB-558382-A (GB)
Title: Improvements in or relating to electric induction furnaces
IPC: H05B6/02
Filed: 1943-10-20
Abstract: 558,382. Moulding metal powder. BIRMINGHAM ELECTRIC FURNACES. Ltd., and ROBIETTE, A. G. E. Oct. 20, 1943, No. 17240. [Class 87 (ii)] [Also in Group XI] An induction furnace suitable for sintering compacts of powdered metal or alloy 16 adapted afterwards to be formed into piston rings, comprises a vertical heating chamber 1, a vertical cooling chamber 2, and a gas-tight transverse chamber 3 to which non-oxidizing or reducing gas is supplied through a pipe 4 to fill both chambers. The lower part of chamber 1 is surrounded by a refractory sleeve 5 with an inductor coil 8, and the upper part by a water- or air-cooled jacket 7. A similar cooling jacket 9 is provided around the upper part of chamber 2. The compacts 16 are carried by refractory insulating moulds or spacers 10 which are fed into the lower end of chamber 1 by rotary table 11, plunger 13, and reciprocating slide 12. A reciprocating arm 15 transfers each spacer 10, as it reaches the top, to chamber 2, and a cooled spacer is removed at the bottom of chamber 2 by plunger 14. Each mould has a peripheral part 17, and tapered crown 18 co-operating with the recessed base 19 of the adjacent mould. A high frequency current of 500-2,000,000 cycles may be used, or a low frequency current of 25-100 cycles with a magnetic core. Instead of feeding non-oxidizing gas, the metal powder may be mixed with a metal hydride which decomposes to produce the required atmosphere. The compacts may be subjected to pressure during the heat treatment. The heating and/or cooling may be controlled by extending the coil 8 and varying the spacing of the turns, or the controlled cooling may be effected by a graduated resistance element at the discharge end of the inductor coil, terminating in a water or air cooled zone.
Patent GB-849587-A (GB)
Title: Plant-supporting stake
IPC: A01G9/12
Filed: 1959-05-21
Abstract: 849,587. Plant supports. WESTFORD, E. May 21, 1959, No. 17265/59. Class 6(2). A plant support, particularly suitable for supporting plants which grow from bulbs, consists of an upright comprising three, parallel, spaced arms 18, 20, 22, the arms 18 and 22 being formed with registering notches 26 for the reception of the ends of resilient strips 30 which encircle the plant. The lower end of the stake is formed as a fork for straddling the bulb of the plant, and both the stake and the resilient strips may be made from a synthetic resin.
Patent GB-481961-A (GB)
Title: Radio direction finding
IPC: G01S1/02
Filed: 1936-06-22
Abstract: 481,961. Directive wireless signalling. KAESS, L. L. June 22, 1936, No. 17338. [Class 40 (v)] The characteristic figure-of-eight curve of a directional receiver is made adjustable at will so as to sharpen the response at the critical " maximum " and " minimum " points. For instance the normal curve shown in Fig. 10 is converted to that shown in Fig. 16, to increase sensitivity at the minimum point, or to that shown in Fig. 20 to sharpen the maximum readings. The desired effect may be secured by using a variable-mu input valve 1, Fig. 4, which is controlled by the A.V.C. voltage derived from an auxiliary valve 11. The resulting non-linear gain produces the curve of Fig. 16, though by " inverting " the AVC voltage the effect becomes that shown in Fig. 20. Alternatively, the amplified signal voltage is passed through a full-wave rectifying bridge, the elements of which have a falling resistance with increasing current. The indicator may also have a non-linear response. As shown in Fig. 9, the pivoted polepieces 18, 19 are displaced so as to decrease the gap when the indicator needle 16 is near the zero position, thus increasing the normal sensitivity at minimum pick-up. If however, the polepieces 18, 19 are rotated in the opposite direction the indicator will show its highest sensitivity at the point of maximum pick-up. This subject-matter is separately claimed in Specification 482,124, [Group XXXVI]. The arrangement shown in Fig. 2 also ensures a non-linear, or logarithmic relation between the signal input voltage from the frame 61, and the reading given by the indicator 49. A local oscillator 40 supplies current through a transformer 43, 47 and 44, 48 to the indicator 49. The amount of energy transferred is then made to depend upon the value of the saturating current fed to a magnetic core 59 from a rectifier valve 52 which is coupled to the frame aerial 61.