baber/WOPTO huggingface dataset:
Patent GB-925070-A (GB)
Title: Improvements in the bleaching of cellulosic textile materials
IPC: D06L4/26
Filed: 1959-08-17
Abstract: Cellulosic textile materials are bleached by impregnating them with an aqueous solution containing a triethanolamine salt and a watersoluble chlorite of an alkali or alkaline earth metal at a pH within the range of from about 3 to about 7 inclusive.  The triethanolamine salt may be added to the bath shortly before use or formed in situ by adding triethanolamine to and acidifying the bath. The material is preferably passed through an aqueous bleach bath containing 2-20 grams or 0,02-0,25 gram moles of sodium chlorite per litre and between 0,08 to 1 and 0,58 to 1 which corresponds to a mole ratio of between 0,05 to 1 and 0,35 to 1 based on the weight of the sodium chlorite of triethanol amine salt at a temperature of 85 DEG -100 DEG C., squeezed to remove excess liquid, wound on a roll, stored at 85 DEG -100 DEG C. for 1-2 hours and washed free of salts and any other foreign matter.  Alternatively the material may be left for 1-2 hours in a more dilute bath containing 1-5 grams or 0,01-0,06 moles per litre of sodium chlorite and between 0,08 to 1 and 0,58 to 1 which corresponds to a mole ratio of between 0,05 to 1 and 0,35 to 1 based on the weight of sodium chlorite of triethanolamine salt at a temperature of 85 DEG -100 DEG C.  The pH is preferably adjusted to 5-7 by the addition of hydrochloric, sulphuric or phosphoric acid. The solution may also contain wetting agents, corrosion inhibitors or buffers, e.g. sodium acetate.  Other specified chlorites are calcium and potassium chlorites.  Examples describe the bleaching of desized huckaback towelling.
Patent GB-1003081-A (GB)
Title: A process for the preparation of 16ª‰-methyl steroids
Inventor: PHILLIPPS GORDON HANLEY
IPC: C07J5/00
Filed: 1961-08-02
Abstract: 17a  - Hydroxy - 20 - keto - 16b  - methyl steroids are prepared by hydrogenating 17a -hydroxy - 20 - keto - 16 - methylene steroids in the presence of an iridium catalyst.  The iridium may be unsupported or supported on, for example, barium sulphate, kieselguhr or calcium carbonate, and it may be formed in situ by reduction of iridium dioxide.  The 16b -methyl steroid may be separated from concomitantly formed 16a -methyl steroid by, for example, repeated crystallization. The steroids may contain, for example, 3-acyloxy, -hydroxy or -keto groups; 11-acyloxy, -hydroxy or -keto groups; 9,11-dichloro substituents; D 9(11)-double bonds; and 5a - or 5b -hydrogen atoms, in addition to the normal 17-substituents of pregnane compounds. Reduction of some of these groups, e.g. 3-keto, may occur during the process, but D 9(11)-double bonds are, in general, not effected. Examples are provided.  11b ,21 - Diacetoxy - 3b ,17a  - dihydroxy - 16 - methylene - 5a  - pregnan - 20 - one is prepared from 3b ,11b -diacetoxy-5a -pregn-16-en-20-one by the steps of reaction with diazomethane, pyrolysis to form the 16-methyl-16(17)-ene compound, epoxidation, rearrangement with acid to a 17a -hydroxy-16-methylen compound, bromination to a 21-bromide and reaction with potassium acetate.  Specifications 956,271, 956,272, and 1,003,082 are referred to.
Patent GB-382406-A (GB)
Title: Process for the manufacture of amorphous carbon
IPC: C01B31/00
Filed: 1931-10-09
Abstract: Amorphous carbon is produced by passing water gas and steam over calcium carbide heated to about 250 DEG  C. in a retort from which air is excluded, hydrogen being evolved and a mixture of calcium oxide and amorphous carbon formed in accordance with the equation 3(CO + H2) + 4 Ca C2 + H2O = 4 CaO + 4H2 + 11 C.  Separation of the carbon is effected by dissolving the lime in hydrochloric acid.  The water gas employed is produced by passing carbon dioxide and steam through iron heated to redness in a closed retort, the reaction being 3 CO2 + 3H2O + 4 Fe = 2Fe2O3 + 3(CO + H2).  Preferably, the carbon dioxide is obtained by heating a mixture of ferrous and calcium carbonates produced in the manufacture of hydrogen as described in Specification 370,834. Specifications 26808/06, [Class 1, Acids, alkalies, &c.], and 2523/09, [Class 1 (i), Chemical processes &c.], also are referred to.
Patent GB-327941-A (GB)
Title: Stop motion devices for sewing machines
IPC: D05C7/00
Filed: 1929-09-17
Abstract: 327,941. Fairweather, W., (Singer Manufacturing Co.). Sept. 17, 1929. Universal-feed sewing-machines.-In a univer. sal-feed embroidery machine for large size work such as carpets and rugs, means are provided for controlling the action and inaction of the stitchforming and work-feeding mechanisms. In the illustrated embodiment of the invention, the cloth plate 1 and overhanging arm 3 are made long enough to accommodate the work. The stitch forming and feed mechanisms are controlled by the hand crank 63. The stitch-forming devices are controlled as follows. In the position shown in Fig. 1, the shaft 9 driving the needle-bar 11 is coupled to the driving shaft 6 by the pin 33. As the shaft rotates, the arm 37 being fixed by its connection to the interlocking levers 45, 39, causes the cam 29 to move to the left along the shaft 9, so withdrawing the pin 33 from the disc 34 fixed to the shaft 6 and allowing a spring plunger 49, Fig. 3, to engage a recess 48 in the periphery of the eccentric 30 to which the pin 33 is fixed, and stop the rotation cf the shaft 9. The shaft is restarted by pulling the handle 63, whereupon the pivoted lever 65 lifts a rod 67 to tilt the latch lever 45 about its pivot 46, to release the lever 39. The spring 35 then shoots the cam 31 and eccentric 30 forwards to re-engage the pin 33. The connection of the lever 37 with the lever 39 is hv an eccentric pin 38 to permit altering the timing slightly to enable the plunger 49 to enter the notch 48 at the correct moment. The latch levers are permanently disengaged for continuous stitching by the screw 69. The looper 15 is operated from the shaft 9 by the eccentric 28, pitman 26, bell-crank lever 25, 23, rotating and sliding shaft 18, worm 17 and shaft 16. The feed is controlled by rotating the handle shaft causing the sleeve 60 and bevelled gear 59 to turn the gear 58 and rotate the feed control shaft 57. This rotates a cylinder 10 through bevelled gears 55, 56. This rotates the needle bar 11 and the looper, the needle bar and looper shaft being splined to the gears 55, 21 respectively, so as to properly present the thread to the needle. The rotating feed foot 72 is carried by the feed bar 73. The extent of the feed length is governed by the vertically-reciprocating cam-member 74, having spaced arms 76 engaging curved guide ribs engaging guideways 78 in a fulcrum block 79 secured by a collar 86 to the reciprocating sleeve 87. The feed-mechanism, except for the cam feed length adjusting mechanism, is the same as that described in Specification 152,092.
Patent GB-1319086-A (GB)
Title: Multi-feed circular knitting machine
IPC: D04B15/74
Filed: 1970-06-10
Abstract: 1319086 Knitting machines MECMOR SpA 10 June 1970 [30 June 1969] 28203/70 Heading D1C A multi feed rotary cylinder knitting machine having movable cams at the first feed which select first jacks 9 to select the corresponding needles 8 comprises further lower jacks 13 connected to the first jacks so that they are entrained by the first jacks at the first feed and later butts on said further jacks engage a cam track which causes the same needles to knit at succeeding feeds. Jacks 9, 13 overlap in the tricks 7 and have teeth 15 which prevent them from being separated. When a jack 13 rises, a foot 20 engages below a ledge 21 at the bottom of the cylinder so that it moves outwards and its butt 19 projects from the trick. The machine has fixed cams 23, 25 and movable cams 24, 26 for the needles 8 and jacks 9 respectively. In zone A at the first of the e.g. four feeds further movable selection cams 27 are provided which cooperate with various lengths of butt 9a on jacks 9. When jacks 9 are selected, the corresponding jacks 13 are lifted by the engagement of teeth 15 and 16 and their butts 19 engage in a cam track 28. At succeeding feeds, the selected jacks 13 cause corresponding jacks 9 to raise their needles to take the reinforcing thread from guide 32 as well as the ordinary knitting thread from guide 31. The selection of the jacks may be suppressed after zone A by movable cams 29 and cam 30 which return all the jacks to unselected position.
Patent GB-226005-A (GB)
Title: Improvements in and relating to adjusting devices for instruments used in wireless telegraphy
IPC: H03J1/14
Filed: 1923-11-10
Abstract: 226,005. Owen, C. J. Nov. 10, 1923. Wireless tuning- apparatus, adjustment devices for.- In means for obtaining fine and coarse adjustment in instruments such as variable electric condensers, coil holders &c. used in wireless telegraphy, the fine adjustment is obtained by the provision on the operating knob, which is freely mounted on the spindle of the instrument, of an eccentric groove or equivalent device which engages a pivoted lever, the free end of which is in operative engagement with a member secured to the spindle. In the. form shown, a bush A carrying a pointer C and slotted at D is secured by a screwed sleeve B and nut T to the spindle of the instrument. A semicircular arm F is pivoted on a pin H projecting from a cover plate J and is provided at its free end with a pin E engaging the slot D. A pin K projecting through a slot N in the cover plate J is also provided on the arm F midway between its ends and engages in an eccentric groove W in a member L secured to or formed integrally with the operating knob M. The knob M is rotatably mounted on the bush A and is held thereon by a collar 0, a spring S being inserted between the collar and knob to take up play. The arrangement is such that rotation of the knob M causes slight movement of the pin K in a substantially radial direction, thus swinging the arm F about the pivot H and causing slight angular movement of the bush A secured to the spindle of the instrument. After limited movement, the pointer C engages the end of a slot V in the cover plate J, whereupon the whole device rotates integrally with the knob giving coarse adjustment. Fine adjustment within the limits of the slot V is again obtained by a reversal of the movement of the knob.
Patent GB-1368328-A (GB)
Title: Plastics block bottomed bag with a valve
IPC: B65D30/24
Filed: 1971-06-17
Abstract: 1368328 Block-bottomed valve bags INDUSTRIELE ONDERNEMING WAVIN NV 17 June 1971 [17 June 1970 10 Feb 1971] 28429/71 Heading B8K  The bottom of a plastics block-bottomed valve bag comprises two inwardly folded corner flaps 7, 10 and two bottom flaps 8, 8<SP>1</SP> folded over on lines 14 and secured to each other and to the corner flaps along seal lines 15, 16 and 17, leaving a valve opening between the flaps 7 and 8, 8<SP>1</SP>. The seals 17a, 17b are made along the fold lines 14 or inwardly thereof. The ends 28, 29 of the seals 16a and 17 are rounded off to inhibit tearing. The seals are formed by a partition member and a sealing stamp which both have sealing members corresponding to the positions of the seals to be formed, the partition member being inserted between the flaps 7 and 8 and beneath flap 10 and having a constant circumference but being flat at its leading end and narrow and raised at its other end. In a modification, an auxiliary valve flap (31) is connected beneath the flap 7 by seals (37) parallel to fold lines 14 and to flaps 8, 8<SP>1</SP> by seals (36) perpendicular to fold lines 14.
Patent GB-1151762-A (GB)
Title: Treatment of Oxymethylene Polymers
Inventor: BARRELL KENNETH
IPC: C08G2/00
Filed: 1966-06-24
Abstract: 1,151,762. Treatment of oxymethylene polymer. BRITISH INDUSTRIAL PLASTICS Ltd. 15 June, 1967 [24 June, 1966], No. 28440/66. Heading C3P. A process for the treatment of oxymethylene polymer which comprises forming a solution or dispersion thereof and subjecting the polymer to alkaline degradation in the presence of a solution of formaldehyde in which the formaldehyde is initially present in a concentration of at least 10%, based on (a) the total water content of the medium when the medium comprises at least 10% of water, or (b) the total medium when it contains less than 10% of water. The process may be performed using alcohol/water mixtures or water or an alcohol as suspending media. A wide variety of oxymethylene polymers and alkaline materials are specified, e.g. NaOH, borax, NH 3  and amines. In the examples a styrene/trioxan copolymer or a trioxan/cyclic ether copolymer is treated with a mixture of formaldehyde, methanol and water, and NH 3 , (C 2 H 5 ) 3 N, or NaOH. A flow diagram of a suitable method of performing the process is provided, including polymer formation and recirculation of formaldehyde and reforming of monomeric trioxan.
Patent GB-1190629-A (GB)
Title: Improvements in or relating to Ingot Moulds.
IPC: B22D7/06
Filed: 1967-06-21
Abstract: 1,190,629. Ingot moulds. GUTEHOFFNUNGSHUTTE STERKRADE A.G. 21 June, 1967 [24 Nov., 1966], No. 28528/67. Addition to 1,007,357. Heading B3F. In order to preserve a straight line contour 2 of an ingot of ferrous alloy, such as alloy steel, the inside surface of an ingot mould of nodular iron or cast steel is concave in longitudinal section 9. Fig. 5, the ingot contour line 2 lying at least partially behind the inside surface as indicated. The line 2 may be tangential to the section 9 or completely behind it, Figs. 6, 7 (not shown). The inside surface is convex in crosssection 9<SP>1</SP>, as indicated by the top, middle and bottom sections shown in Fig. 10 (wherein 6 represents the ingot contour) at the top and bottom of the mould.
Patent GB-1048597-A (GB)
Title: Apparatus for collecting and testing gases
IPC: G01N1/22
Filed: 1964-07-10
Abstract: 1, 048, 597. Breath-testing apparatus. L. ETZLINGER. July 10,1964 [July 12,1963; April 20, 1964], No. 28555/64. Heading A5R. [Also in Division G1] Apparatus for collecting and analysing exhaled alveolar gas comprises an inflatable container 10 having a filling orifice which has a device permitting air to flow out of the container as exhaled air flows into it and the closure of the container at the end of the exhalation, the container being connected to a testing device 17. In apparatus for determining the amount of alcohol in the blood and alveolar air of a person, the inflatable bag 10 has a flattened tube 12 sealed into one end so that it extends from the interior to the exterior of the bag. Opposite sides of the tube are partially sealed together along lines 15,16 or by circular welds (Figure 3 not shown). An open-ended tube 17 of yellow potassium bichromate is sealed into the other end of the bag so that one end communicates with the interior of the bag and the other end communicates with a closed chamber 21. In use, one end of a blow tube 22 is inserted into the bag through the flattened tube 12 thus separating the sides of the latter. The person under test exhales into the bag through the blow tube, air escaping from the bag through the flattened tube during the exhalation period. At the end of the exhalation the blow tube is removed and the sides of the flattened tube 12 are pressed together to seal the bag by the pressure of gas remaining in the bag i.e. the alveolar air. The chamber 21 is then opened and alveolar air esacapes to atmosphere through the potassium bichromate. Alcohol in the escaping air turns the potassium bichromate to the green ehromate progressively from the inlet end 19 of the tube. When all the air has escaped, the line of separation between the yellow and green colour indicates the percentage of alcohol in the alveolar air. In an alternative construction, the flattened tube is replaced by a rigid tube (Figure 2 not shown) having a valve seated on the end which is in the bag. The valve is opened and closed by the insertion and withdrawal of the blow pipe respectively in the rigid tube.
Patent GB-264436-A (GB)
Title: Improvements relating to stays for use in connection with casement windows and doors
IPC: E05C17/22
Filed: 1926-11-13
Abstract: 264,436. Bolt, W. H., and Shuttleworth, F. Nov. 13, 1926. Stays for casement windows and doors comprise a bar A that is rotatable about its longitudinal axis into one or other of two positions when the window or door is shut or nearly so, the opening movement of the window being limited to an extent fixed for ventilating purposes with the stay-bar in one position, and when the stay-bar is in its other position the window may be opened widely, the axial turning movement of the stay from one position to the other being prevented when the window is opened beyond a predetermined distance. The bar A is ball-jointed at a to a bracket B and is slidable through a guide member C having a clamping screw C<2>. The stay-bar is formed with longitudinal slots a<3>, a<4> that are adapted to be engaged by the clamping screw, and a reduced portion a<2>. When the window is closed so that the guide C engages the part a<2>, the bar may be axially rotated until either of the grooves a<3>, a<4> is in alinement with the key c, Fig. 7. The short groove a<4> provides for a limited opening movement of the window for ventilating purposes and the longer groove a<3> provides for the window being opened widely.
Patent GB-1437014-A (GB)
Title: Magnetic bubble domain apparatus
IPC: G11C19/08
Filed: 1973-06-15
Abstract: 1437014 Moving domain systems INTERNATIONAL BUSINESS MACHINES CORP 15 June 1973 [22 June 1972] 28631/73 Heading H3B In a bubble domain system the fields applied to a bubble domain device are too small to cause propagation or collapse unless a controlling in-plane bias field is applied. In Fig. 4 strip lines X1, X2, Y1 and Y2 overlie bubble device 10 and may be activated in pairs to provide an in-plane bias field. The device 10 has an angel-fish propagation pattern 18, though any other propagation system may be used; the field source 12 provides a varying bias field normal to the device as is conventional when angel-fish are used, but this bias field variation is such that a domain oscillates between two adjacent angle-fish and does not propagate. It is found that when an in-plane field is applied by coincident operation of an X strip line and a Y strip line the domain mobility is increased and propagation occurs. The use of an in-plane control field also allows other functions such as annihilation to be similarly controlled; a presence/absence bubble domain system in which bubbles are only generated and collapsed, without being propagated, can also be controlled, Fig. 6 (not shown). The in-plane control may be used with any bubble domain material, the minimum in-plane field being when the field is perpendicular to the propagation direction and being given by the expression where h is the thickness of the material and A is its exchange coefficient.
Patent GB-753192-A (GB)
Title: Improvements in or relating to motor vehicle independent wheel suspension
IPC: B60G3/24
Filed: 1954-10-06
Abstract: 753,192. Spring suspensions. FORD MOTOR CO., Ltd. Oct. 6, 1954 [Oct. 12, 1953], No. 28764/54. Class 108 (2). [Also in Group XXXI] A motor vehicle independent wheel suspension system comprises a frame, a supporting member 28 having means thereon rotatably to mount a road wheel 29, a longitudinally disposeF torsionbar 38 pivotally connected at its forward end 36 to the frame for rotation about a generally horizontal transverse axis and rigidly connected at its rearward end to the supporting member 28, and a diagonally-disposed L-shaped torsion-bar 43 having two integrally-formed angularlyrelated sections 44 and 46, section 44 extending generally transversely of the vehicle being rigidly connected at its free end to the supporting member 28 and section 46 extending diagonally of the vehicle frame and being anchored at its rearward end, and a bearing on the frame for section 46 of the torsion-bar 43 spaced forwardly of the anchored end thereof. When the suspension is used for a driven wheel, as shown in Fig. 1, axle shafts 26 are driven through universal joints 27 from a differential gear-box 21, the universal joints 27 lying on the axis of the section 46 of torsion-bar 43 together with the end 37 of a torsion-bar 38. An end of each torsion-bar is rigidly connected to an axle support 28. The ends 37 of torsion-bars 38 are splined to bearings 33 rotatably mounted in each end of a cross-frame member 32. Though placed under torsional stress itself section 44 of the torsion-bar 43 acts as a lever to stress the section 46, the necessary reaction for which is provided by rubber insulated bearings 64 mounted on a bracket 56 which depends from a cross-member 16. Specification 753,191 is referred to.
Patent GB-834901-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B33/00
Filed: 1956-09-20
Abstract: 834,901. Refrigerating. ELECTROLUX Ltd. Sept. 20, 1956 [Oct. 7, 1955], No. 28780/56. Class 29 In continuous cycle absorption refrigerating apparatus the vapour expulsion system comprises a vapour expeller tube 17, a heating tube 13, for an electric heating element, disposed in axial alignment and in tandem with the expeller member, and in heat exchange with the expeller tube by a transverse partition 20, together with a liquid pump pipe 16 connected in heat exchange with the heating tube along a common generatrix. As shown the expeller vessel and heating tube are located in the same pipe with a heat exchange sleeve 21, slotted to receive the liquid pump 16, surrounding the pipe about the partition 20. Alternatively the expeller tube has a closed bottom forming the partition and is embraced telescopically by the heating tube. The liquid pump may be wound about the heating tube and the vapour expeller tube may be thickened, as by rolling, at the portion adjacent the partition without increasing its internal diameter. The liquid pump may be introduced into the lower end of the expeller, the riser passing through the liquid and having its outlet above the liquid levels.
Patent GB-648020-A (GB)
Title: Improvements in combined cabinets and tables
IPC: A47B77/10
Filed: 1948-11-08
Abstract: 648,020. Tables ; cabinets. HADLEY, J. V. Nov. 8, 1948, No. 28924. [Class 52 (iii)] The top of a cabinet 18 has a vertically-pivoted leaf 15 with a leg 16 and an extension leaf 27 with a folding leg 28 hinged to the end of the pivoted leaf 15. The vertical pivot 17 may be removable and alternative pivot-holes may be provided and the leaf 15 may be pivoted to a separate board or frame attached by suction cups or other means to the top of the cabinet.
Patent GB-1204740-A (GB)
Title: Improvements in or relating to hydraulic connections
IPC: B60T8/18
Filed: 1968-06-18
Abstract: 1,204,740. Brake pressure regulating. ALFRED TEVES G.m.b.H. 18 June, 1968 [23 Dec., 1967], No. 29006/68. Heading F2F. A brake pressure regulator 3 is coupled to an hydraulic control line 1 through a piston 12 operatively connected to a control member 13 of the regulator and a valve 6 which is opened during regulation by contact with the piston 12 and is closed at other times when it is out of contact with the piston 12. The control line 1 may be connected to a component of a hydropneumatic suspension system. Adjustment.-An adjusting gauge 18 is used for setting the position of the valve, the connection being tightened until the gauge 18 is nipped between the piston 12 and ring 4. The gauge is then withdrawn. In use, the aperture 15 (which is also used for introducing the pressure medium) is closed by a plug (16).