baber/WOPTO huggingface dataset:
Patent GB-1530871-A (GB)
Title: Polysiloxane/polycarbodiimide copolymers
IPC: C08G18/61
Filed: 1977-01-20
Abstract: 1530871 Siloxane-carbodiimide polymers BAYER AG 20 Jan 1977 [23 Jan 1976] 02325/77 Heading C3T A siloxane-carbodiimide polymer contains units wherein each R is a C 1-12  alkyl, alkenyl or aryl radical, each R<SP>1</SP> is a C 1-4  alkyl radical, R<SP>2</SP> is a divalent C 1-6  hydrocarbon radical, A is an optionally substituted divalent aromatic radical of up to 40 C atoms, X is -O-, -NH- or -NR<SP>3</SP>- (R<SP>3</SP> being a C 1-8  alkyl, aralkyl, aryl or cycloalkyl radical) and n is 0 to 10,000 and z is 1-1500. It may be prepared by reaction of one or more of the amino- or hydroxy-siloxanes with excess diisocyanate A(NCO) 2  and carbodiimidization of the product in the presence of a catalyst, e.g. a phospholine, phospholane or phosphetane oxide. In the examples polydimethylsiloxanes (with 0À175 mol per cent MeViSiO units in Example 1) having isobutylaminomethyl, cyclohexylaminomethyl, dicyclohexylaminopropyl or silanol end groups, or a mixture of silanol and benzylaminomethyl groups are reacted with excess toluene diisocyanate mixture or diphenylmethane diisocyanate, and the products are heated at 80 C. then 110 C. ipo 0-05 wt. per cent of 1 - methyl - 1 - oxophospholine to give polymers in which z is from 25 to 688. These are blended with reinforcing silica or carbon black and dicumyl peroxide or bis-t-butylperoxy-dimethylcyclohexane and cured to give rubbers.
Patent GB-1175553-A (GB)
Title: Depth Sensitive Transducer
Inventor: MCLOAD KENNETH W
IPC: G01L9/00
Filed: 1967-01-17
Abstract: 1,175,553. Seismic prospecting; microphones. SCHLUMBERGER TECHNOLOGY CORP. 17 Jan., 1967, No. 2353/67. Headings H4D and H4J. [Also in Division G1] A transducer for measuring hydrostatic pressure variations and acoustical pressure waves, produced, e.g. by underwater explosion and reflected from earth formations on the water bed, comprises a sealed housing 14, (Fig. 1) of which two opposite walls are formed by diaphragms 16, 18 carrying iron or steel armatures 20, 22. U-shaped magnetic polepieces 24, 26 fixed in the housing are provided with coils 34, 36 connected in series in one arm of a bridge (Fig. 2) in parallel with a variable capacitor 60. Initially the capacitor and a resistor in arm 50 are varied to balance the bridge at a known pressure. Changes in the inductance of the coils due to movement in opposite directions of armatures 20, 22 modulates the bridge output at a frequency of the order of 1500 c/s for acoustic pressure waves and at a frequency of less than 1 c/s. for hydrostatic pressure changes occurring as a result of variations in the depth of the transducer. The bridge output is demodulated to remove the carrier frequency then fed through a high pass filter, which selects signals due to the acoustic waves which are amplified and re. corded, and also through a low pass filter, which records depth signals. In operation a plurality of transducers are towed behind a boat, the hydrostatic pressure measurements enabling the operator to keep the transducers at a required depth. The transducer construction automatically cancels signals produced by displacement of the transducer as a whole in the liquid medium. In modifications permanent magnets may be attached to the diaphragms, movement of the magnets inducing currents in coils 34, 36: or one plate of a capacitor may be mounted on each diaphragm with a second plate fixed in the housing; of the wiper arm of a potentiometer may be connected to the diaphragm to vary the impedance of the potentiometer dependent on pressure.
Patent GB-343289-A (GB)
Title: Improvements in or relating to water-cooling towers
IPC: E04H5/12
Filed: 1930-01-23
Abstract: 343,289. Cooling-towers. MOUCHEL & PARTNERS, Ltd., L. G. and GUERITTE, A. T. J., 36, Victoria Street, London. Jan. 23, 1930, No. 2450. [Class 29.] Cooling-towers formed as curved surfaces o: revolution are con structed wholly or ir part of brick-work. A reinforced-concrete cornice c<1> may be built or a brick wall d anchored by rods &c. to the rim bl of a reinforced concrete base and pond a, or the pond and cornice may also be of brickwork. Specifications 108,863 and 271,320, [both in Class 29, Cooling &c.], are referred to.
Patent GB-274360-A (GB)
Title: Improvements in locking devices for core boxes
IPC: B22C21/08
Filed: 1927-01-28
Abstract: 274,360. Geissereibedarf Ges., and Brandenstein, A. Jan. 28, 1927. Stud-and-slot fastenings.-A locking-device for core boxes and the like comprises a turn-button f pivoted on the lid e and having a curved slot h adapted to engage a shoulder b on a pin a screwed into the wall d. The walls of the. slot have inclined faces so as to exert axial thrust on the shoulder b when the turn-button is pushed home.
Patent GB-906801-A (GB)
Title: Improvements in or relating to oil burning heaters
Inventor: MACKROW WILLIAM ALBERT
IPC: G01C9/10
Filed: 1958-01-24
Abstract: 906,801. Oil stoves. PYE L t d. Jan. 26, 1959 [Jan. 24, 1958], No. 2477/58. Divided out of 906,190. Class 126. An oil burning heater has adjustable legs or the like (not shown) to enable the heater to be levelled and a level-indicating device. The device comprises a ball supported on a. dished or concave surface, the concavity being such that the ball remains substantially centrally thereof when the heater is level within predetermined angle, not exceeding and preferably less than the safe limits of tilting, and rolls towards the side of the surface when the tilting exceeds the predetermined angle. In a preferred embodiment, in which tilting up to 5 degrees is safe, the predetermined angle is 2 degree and the surface 26a is in the form of a wide angle cone with an included angle of 179 degrees. The casing has a flange 27 for securing to the heater 1 and to a flange 29 of a transparent cover 28. Within the cover is an opaque disc 30 with a wall 30a resting on the bottom of the casing 26 and an aperture 31 through which the ball 32 is visible when in its central position. The disc may be transparent with a central ring marked thereon or it may be omitted and the transparent cover 28 may be so marked.
Patent GB-855159-A (GB)
Title: Synthetic detergent cakes
Filed: 1959-01-23
Abstract: Acylated isethionates are made in cake form by a process which comprises adding to a water soluble salt of a fatty acyl isethionate, in which the fatty acyl group is preferably a saturated fatty acid of at least 12 carbon atoms, an insufficient amount of water to dissolve the isethionate at room temperature, heating the mixture to form a paste, and then cooling to room temperature, during which latter step the mixture may be moulded or extruded to form tablets.  The water is usually present in an amount of 1-15%, preferably 10-15%, by weight of the isethionate, the isethionate being generally present as the alkali metal, preferably sodium, salt; the temperature to which the mixture is heated is preferably 40-100 DEG C.  In Example 1, a fatty acyl isethionate is prepared by heating 1 mol of sodium hydroxyethane sulphonate with 0,8 mol of a mixture of fatty acids containing lauric acid and not more than 30% of the adjacent acids to 220-260 DEG C. at 300 mm. Hg for 2 hours or more.  At the end of this period, the pressure is reduced to 20mm. or less at the same temperature for a further 1 1/2 hours, after which the reaction mass is cooled as rapidly as possible with continuous agitation.  The isethionate obtained is purified by forming an aqueous supersaturated solution at 90-95 DEG C., when, on cooling to room temperature, purified crystals are obtained.  In Example 2, this product is added to 10% of its weight of water at 98 DEG C. with constant stirring, and the mixture poured into a suitable mould and cooled to form a cake.ALSO:Detergent tablets are made by a process which comprises adding to a water-soluble salt of a fatty acyl isethionate, in which the fatty acyl group is preferably a saturated fatty acid of at least 12 carbon atoms, an insufficient amount of water to dissolve the isethionate at room temperature, heating the mixture to form a paste, and then cooling to room temperature, during which latter step the mixture may be moulded or extruded to form tablets.  The water is usually present in an amount of 1-15%, preferably 10-15% by weight of the isethionate, the isethionate being generally present as the alkali metal, preferably sodium salt; the temperature to which the mixture is heated is preferably 40-100 DEG C.  The composition of the tablets may include up to 20% by weight of a filler, rosin, soap, alkali metal phosphates, polyphosphates or carbonates, carboxymethylcellulose, pumice, infusorial earth, lanolin, or essential oil.
Patent GB-192413-A (GB)
Title: Improvements in and relating to reinforced concrete sleepers or ties for railways and the like
IPC: E01B3/32
Filed: 1923-01-27
Abstract: 192,413. Righetto, M., and Zorzi, C. Jan. 28, 1922, [Convention date]. Sleepers, composite.-Rails are secured to hollow reinforced-concrete sleepers 1, obtained by centrifugation, by U-shaped bolts 3 arranged diagonally, or parallel to and on each side of the sleeper which has a cylindrical internal cavity and an exterior of any suitable shape. The bolts pass through a rail seat 4 shaped to receive the sleeper, two forms of which are shown. An elastic pad 8 is inserted between the rail seat and sleeper and the gauge is maintained by tie-bars, or by projections on the sleeper engaging the rail seat.
Patent GB-686775-A (GB)
Title: A new or improved method of producing an interlocking engagement between two interfitting members
IPC: H01R33/76
Filed: 1950-01-31
Abstract: 686,775. Jointing by embossing. BRITISH MECHANICAL PRODUCTIONS, Ltd., and OSBORN, F. T. Jan. 30, 1951 [Jan. 31, 1950], No. 2546/50. Class 83 (iv). [Also in Group XXXVI] Interfitting parts, at least one of which is of sheet-metal, are secured in assembled relation by deforming edge portions of the metal into recesses in the other part. The method is described as applied to securing the bodies of thermionic valve holders to anchoring sole plates 1, Fig. 2, that fit over the bodies and not against shoulders thereon. Projections 2 adjacent elongated slots 6 fit against the circumference of the bodies. The outer edges 8 of the slots are arcuate concentric with the bodies and the inner edges are initially straight and perpendicular to the major and minor axes of the sole-plates. After assembly a tool having four punches that enter the slots deforms the metal forcing the projections 2 into the bodies or into slots previously formed therein. In a modification, a central metal plate is secured into a recess in the body of an insulator by slots that expand projections outwards. The body is provided with sockets and contacts as described in Specification 578,391, [Group XXXVI].
Patent GB-789638-A (GB)
Title: Improvements in thermostatically controlled apparatus for a gaseous fuel burner
Inventor: WEBER VICTOR
IPC: F23N1/00
Filed: 1956-01-26
Abstract: 789,638. Thermally-responsive valves. ROBERTSHAW-FULTON CONTROLS CO. Jan. 26, 1956 [May 19, 1955], No. 2621/56. Class 135. With the apparatus in the " off " position shown fuel is supplied to both the pilot burner 20 by way of the conduit 26 and to a cock 46 through a conduit 22 under a control of an automatic valve 24. The apparatus is put into operation by rotating a temperature-setting knob 56 and so opening the cock 46 connected thereto as well as rightwardly moving an expansible power element 100 comprising a pair of flexible diaphragms welded together at the periphery, thereby enabling the main lever 108 of a snap-action device to rotate counter-clockwise about its pivot 110 and unseat an attached valve closure 62; concomitantly the lever 108 rotates a secondary lever 114 in a clockwise direction so unseating a snap-action valve-closure 78. Fuel now enters an inlet chamber 42, and flows therefrom into an outlet chamber 44 by two parallel paths, one via a duct 70 and the seat of closure 78, and the other through the seat of closure 62; the fuel in the outlet chamber 44 flows to the main burner 16 by a pipe 38 where it is ignited by the pilot burner 20 and heats the utensil 12, the temperature of which latter is sensed by a bulb 15 spring-leaded towards the utensil and connected by a capillary tube 18 to the element 100, which as it expands, moves the lever 108 clockwise and allows the closure 62 to seat slowly so that fuel is supplied to the burner at a slower rate under the control of the closure 78 only. When the desired temperature previously set on the knob 56 is reached, the element 100 has expanded sufficiently to translate the lever 108 beyond its snap-action point and the lever 114 has consequently moved by snap-action to the full-line position to allow seating of the closure 18, thus cutting off the fuel supply to the main burner 16. As the temperature of the utensil falls the element 100 contracts and the closure 78 again opens. Should the utensil temperature fall sufficiently below that set or if the fuel controlled by the closure 78 is inadequate to restore the set temperature then the element 100 will further contract and enable the closure 62 to open. A thermocouple 25 adjacent the pilot burner 20 and associated with the valve 24 prevents fuel flow to the main burner 16 when a flame does not exist at the pilot burner 10. A manually adjustable cock 84 controls the fuel flowing through the duct 70.
Patent GB-247000-A (GB)
Title: Improvements in and relating to bookcases, shelves and like sectional furniture
IPC: A47B87/02
Filed: 1925-01-29
Abstract: 247,000. Educational Supply Association, Ltd., and Cashmore, H. D. Jan. 29, 1925. Sectional cabinets.- bookcases and like sectional furniture. of the type adapted for estension by the addition of complete sections have, secured on the underside of each superimposed section at each end, a short projecting rib 2 which fits between two spaced slats 3 forming the top of the next lower section. Turn buttons or catches 4 are provided to secure the sections. In order that sections may stand side by side without intervening space, the end mouldings 13 of the cornice are detachable. These mouldings have extended ledges 15 to cover the edge of the top 12 and are secured by metal plates 14.
Patent GB-900157-A (GB)
Title: Process of removing the metallic casings of fuel elements for nuclear reactors
IPC: G21C19/38
Filed: 1960-08-04
Abstract: 900,157. Removing metal electrolytically. BOHLER & CO. A.G. GEB. Aug. 4, 1960 [Aug. 13, 1959], No. 27021/60. Class 41. [Also in Group XL (a)] The metallic casing of a nuclear fuel element is removed by immersing the fuel element in a solvent which is too weak to attack the casing, and applying an electric current (either direct or alternating) to the immersed fuel element which constitutes the anode. The tank containing the solvent may thus be of less resistant material, since the solvent is less corrosive than in prior processes. The cathode may be another fuel element, an auxiliary electrode, or the metallic tank. In an experiment, electric current is applied to stainless steel immersed in 40% nitric acid. Annealing the casing at 500-900 ‹ C. facilitates attack on the boundaries between the grains.
Patent GB-593583-A (GB)
Title: Apparatus for the microscopic examination of miniature photographs
IPC: G02B21/00
Filed: 1945-02-02
Abstract: 593,583. Microscopes. FASSEL, E. G. Feb. 2, 1945, No. 2714. [Class 97 (i)] Apparatus for examining miniature photographs on a strip, such as a film, comprises a microscope adjustably mounted over a feedway to be focused on the strip, and a housing apertured at the top and at the bottom and disposed above the feedway and rotatable about an axis, which is perpendicular to the path of the strip and passes through the object glass or centrally between the object glasses of the microscope, the housing having mounted therein and rotatable therewith a pair of reflecting surfaces disposed one above the other, which are equally and oppositely inclined to the axis of rotation and a reflecting surface parallel to the axis, which mirrors effect lateral inversion of the rays of light from the strip, the rotation of the housing effecting an angular adjustment of the image of matter carried by the strip. As shown in Fig. 4, a binocular microscope 10 is adjustable, parallel to a pillar 13, on a member 12 slidable on the pillar which is secured to a member 14 mounted over an apertured plate 30 on a centring slide 22, which is supported on a frame 21 upstanding from a base 20, the slide being apertured at 23 and movable by a screw 25. Fixed to the slide 22 is a housing 28 containing a lamp 29 to illuminate the film A which is movable in a feedway formed between a glass plate 31 clipped to the plate 30 and a glass plate 33 clipped to the member 14, which is apertured above the feedway. The margin of this aperture is undercut to form a bearing for an annular plate 37 screwed to a housing 39, which is thus rotatable about an axis perpendicular to the film A and passing centrally between the two object glasses 45 of the microscope. Mounted in the housing 39 and rotatable therewith are mirrors 40-42, the mirrors 40, 42 being equally and oppositely inclined to the axis of rotation and the mirror 41 being parallel to it. Lateral inversion of the rays from the film is effected bv the mirror combination, and rotation of the housing effects an angular adjustment of the image of matter carried by film A as viewed through the microscope. The film A is supported on the opposite sides of the feedway by cup-shaped holders, each mounted, as shown in Fig. 2 for the supply holder 50, on an arm 51 turning on a spring-biassed hinge 53, which urges the holder to the upright position and is carried by a slide 54 adjustable on the base 20, transversely to the path of the film, so as to cause the face of the film reel, which protrudes from the cup, to bear against a friction driving disc 61, rotatable by a handle 65 through gearing in a box 63 supported on the base 20. For loading the film, the holders are swung down about their hinges. Modifications are described for a binocular mon-objective microscope and a monocular microscope, which is constructed with the housing 39 between the object glass and the eyepiece of the microscope.
Patent GB-876542-A (GB)
Title: Positively actuated starting device for engines
IPC: F02N15/06
Filed: 1959-01-26
Abstract: 876,542. Engine starter drives. LAFITTE, T. Jan. 26, 1959 [Feb. 4, 1958; July 31, 1958], No. 2814/59. Addition to 847,955. Class 7(5). An improvement in or modification of the starter as described and claimed in the parent Specification comprises springs acting in opposite directions to one another, the resultant force of the springs causing inter-engagement of the notches formed in the driving sleeve and cogs formed in the driving pinion, while the driving sleeve is returned into its inoperative position by one of the springs or by a further spring acting on the rocker fork of which one end engages in a groove in the driving sleeve. Thus in Fig. 1 a spring 103 is fitted between the washer 100 and the ring 101 so that its thrust opposes the thrust exerted by the spring 9 and only the resultant of these two opposed thrusts acts for interengaging the teeth 6 and 7. In Fig. 3 the spring blades 131 which are preferably provided with small bearing blocks 132 engage the frustoconical surface 133 formed on the driving sleeve 1 with an energy sufficient for ensuring engagement between the teeth 6, and 7 provided on the pinion 8 and on the driving sleeve so as to form a clutch. The springs 131 may be moved outwardly under the effect of centrifugal force so that the pinion and driving sleeve may be separated. The teeth of the gear-wheel 33 may be shaped as shown at 135, Fig. 4 or 136, Fig. 5.
Patent GB-555809-A (GB)
Title: Improvements in or relating to the production of crepe and like effects in nylon fabrics
IPC: D03D15/567
Filed: 1942-03-06
Abstract: 555,809. Treating artificial filament fabrics with liquids &c. BRITISH NYLON SPINNERS Ltd., and LOASBY, G. March 6, 1942, No. 2942. [Classes 2 (ii) and 15 (ii)] Crape and like effects are produced in fabrics woven from groups of nylon threads of different shrinkability or from nylon threads and threads of other fibre-forming material having a shrinkability different from that of the nylon threads, by subjecting the fabrics to the action of hot water or steam at a temperature below or above 100C. and at atmospheric or reduced or elevated pressure. Nylon threads of different shrinkability may be obtained by cold drawing or stretching the threads to different degrees. When water is used as the shrinking agent, it may contain dissolved salts such as sodium sulphite. In an example, a fabric containing a viscose yarn warp and a weft comprising viscose yarn alternating with nylon yarn, is treated with boiling water without tension so that the nylon yarns shrink and a crape effect is produced. In another example, a fabric having a nylon warp and two alternating groups of nylon threads of different shrinkability in the weft is wound on a perforated roll through which wet steam is blown and passed through the fabric for 20 minutes. The fabric is then dried without tension, and a crape effect is produced. The nylon threads may be made of any synthetic fibre-forming polyamide. Specifications 461,236 and 461,237 are referred to.
Patent GB-304038-A (GB)
Title: An improved drag device for bobbins and the like
IPC: D01H7/44
Filed: 1928-01-31
Abstract: 304,038. Fairbairn, Lawson, Combe, Barbour, Ltd., and Kirk, R. Jan. 31, 1928. Spindle apparatus.- A drag device for bobbins of spinning, twisting and gill spinning frames, of the type wherein drag members are adjustable towards and away from the spindle is provided with a manually or mechanically-actuated control member whereby all the drag members may be moved towards or from the spindle whilst the bobbin is in motion. The bobbin A or the bobbin-carrier B rests on a platform comprising a number of pivoted sections C, Figs. 1 and 2, adapted to be moved radially outwards to increase the effective diameter, contact with a part of the bobbim or carrier moving at a greater speed together with the added weight as the bobbin fills serving to increase the drag. As applied to a live spindle E, Figs. 1 and 2. each section C is pivoted at c to a ring c' rotatably mounted on the bobbin rail D, the inner end of each section being slotted at c<2> and engaging a pin c<3> which projects from a disc c<4> fitting within the ring c<1> and secured to the bobbin rail D. The bobbin-carrier B is provided with a leather friction surface b and the ring c<1> is rotated by the handle c<5>. or otherwise, to move the sections C to the dotted position C<1> thereby increasing the diameter of the platform. A spring- pressed ball or plunger c' is provided to prevent accidental displacement. In a frame having two rows of spindles E, Fig. 3, intergearing rotatable rings c<1> may be used. In a modification, each section C, Fig. 4, is pivoted at c' to a stationary ring c' and connected at c<9> by a link c<10> pivotally connected at c<11> to the ring c<1>. In a further modification for a dead spindle, each section C, Fig. 5, is pivoted at c<12> to the stationary disc c<13> carried by the spindle rail and is slotted at c<14> to engage a pin c<15> projecting from the ring c<1>.