baber/WOPTO huggingface dataset:
Patent GB-1098634-A (GB)
Title: Improved acrylic products and processes
IPC: C08J3/09
Filed: 1965-07-22
Abstract: A spinning solution comprises a polymer of acrylonitrile containing at least 85% by weight of acrylonitrile dissolved in a solvent mixture of (1) N,N-dimethylacetamide and (2) from 2 to 30% by weight of the polymer, of a second solvent selected from N,N-dimethylformamide, dimethylsulphoxide and ethylene carbonate, said polymer being present in amount at least 10% by weight of the solvent mixture.  Polymers specified are polyacrylonitrile and copolymers of acrylonitrile with acrylamide, methyl (meth)acrylate, dimethyl fumarate, vinyl acetate, vinyl-1-imidazole, N-vinyl carbazole, vinyl pyridine or methyl vinyl ketone. Examples are given of spinning fibres from solutions of a 93% acrylonitrile/7% vinyl acetate copolymer in each of the 3 possible solvent mixtures.
Patent GB-1120882-A (GB)
Title: Egg carton
Inventor: BURKETT FRANCIS LINCOLN
IPC: B65D85/32
Filed: 1966-07-12
Abstract: 1,120,882. Perforating plastics article. DOW CHEMICAL CO. 12 July, 1966 [19 July, 1965], No. 31302/66. Heading B5A. [Also in Division B8] An egg carton formed by plug assist vacuum drawing from a sheet of expanded polystyrene is provided with apertures (32), Fig. 1 (not shown), in a side wall of its lid. A forming tool 40 depresses areas of the side wall, thereby pushing up a ridge 36 around each area. The apertures are made subsequently through the depressed areas by a cutting tool.
Patent GB-857999-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25D21/04
Filed: 1959-09-15
Abstract: 857,999. Sealing gaskets. GENERAL MOTORS CORPORATION. Sept. 15, 1959 [Nov. 14, 1958], No. 31396/59. Class 20(3) [Also in Groups XIII and XXV] A resilient gasket for refrigerator doors contains magnets 34 for holding the door closed and an electric heater 30 to prevent moisture condensation around the door seal. In a modification, the current is passed through the magnets themselves.
Patent GB-255712-A (GB)
Title: Improvements in or relating to apparatus for casting tubular stereotype printing plates
IPC: B41D3/08
Filed: 1925-12-12
Abstract: 255,712. Hart, H., (Duplex Printing Press Co.). Dec. 12, 1925. Stereotype, casting. In a casting-box for tubular stereotypes, comprising two relatively-movable, complementary semi-cylindrical members 1, Fig. 1, surrounding a core, and a pouring- mouth extending longitudinally of the box, the box members are both constrained to move only rectilinearly; also improved means are provided for forming a groove in the plate during casting, for freeing the cast plate, for holding the matrix, and for stripping the matrix. The box-members 1 are slidably mounted in a framing F, and are provided with slots If engaged by cams 5a on shafts 5 coupled together for simultaneous rotation. Cam-slots 1<d> are also formed in the members 1 and engage pins or rollers on the ends of levers 2<c> pivoted at 2d in the frame F. The other ends of the levers 2<c> carry bars 2 which engage in recesses 1<e>, Fig. 3, in the internal face of the members 1 adjacent the pouring-mouth, and which extend into the cavity between the members 1 and core 4 to form a groove in the cast plate. The pouring-mouth for the mould is in the form of a slot extending longitudinally of the box and is formed by recesses in the meeting- faces of the members 1 and bars 2. Flanges 1<b> on the box-members forming together a tapping recess 1s serve to direct the metal into the mould. The ends of the matrix M are held in grooved rods 3 carried by arms 3a pivoted on lugs 2g on the levers 2<c>, the arms being attached by springs 3<b> to the flanges 1<b>. When the box is closed, the rods 3 are accommodated in recesses 2a in the bars 2. On opening the box, the levers 2<c> are rocked and withdraw the bars 2 from the recesses 1<e>, and the springs 3b then pull the rods 3 from the recesses 2<a>, thus stripping the matrix from the cast plate. The closing of the box results in the repositioning of the matrix, rods 3, and bars 2. One side of the mould cavity is closed by flanges on the members 1, and the other by a flange on the core 4. The core 4 is longitudinally movable to eject the cast plate, and one end is supported in a tubular extension F, Fig. 5, of the frame F. The front part of the frame is provided with an opening through which the core is projected and with a vertical slot to permit the passage of the sprue p<1>. The core is provided with a rack 7 engaged by a gear-wheel 7<a> on a shaft 7b which carries a second gear-wheel 7<c> engaging a toothed segment 8. The segment 8 is connected by a link 8<b> to a lever 8<c> pivoted in the frame and provided with a pin engaging a cam 8<e>.
Patent GB-428861-A (GB)
Title: Improvements in or relating to electrical switches of the snap-action type
IPC: H01H3/60
Filed: 1933-11-11
Abstract: 428,861. Tumbler switches. CRABTREE, J. A., Endwood, Little Aston Park, Sutton Coldfield. Nov. 11, 1933, No. 31436. [Class 38 (v)] A snap-action tumbler switch has non-metallic resilient stops b, such as of rubber, mounted on the bridge to cushion the operating lever d and contact arm c. Further cushioning members b<1> may be inserted between the bridge and the base. Specification 201,724, [Class 38 (v)], is referred to.
Patent GB-1098954-A (GB)
Title: An improved adjustable or variable-position bed
IPC: A61G7/002
Filed: 1965-07-23
Abstract: 1,098,954. Adjustable beds. J. BUNYAN. Sept. 30, 1966 [July 23, 1965], No. 31460/65. Heading A4J. In a mattress frame (4), which is independently supported, near each corner, for vertical adjustment relatively to bed legs 2, the adjustment motion is aided by a spring counter-balancing mechanism. When the bed is unoccupied constant force spring drums 7 act on metal strips 6 to lift bearers 3, so that the edges 3a of each of four holes 11 enter recesses 9a in bolts 9 to prevent their withdrawal. In use, the weight of the occupant frees the bolts 9 which may then be individually or collectively withdrawn by Bowden cables 10 to allow any tilt or vertical adjustment of the frame (4) to be made. The bearers 3 are connected by T-shaped shafts 4a to the flanges 4b of the frame (4).
Patent GB-366013-A (GB)
Title: Chisel machine
IPC: B28D1/18
Filed: 1930-10-20
Abstract: 366,013. Percussive tools ; dressing stone. HAMMER, L., 40, Bastiengasse, Vienna. Oct. 20, 1930, No. 31468. Convention date, Oct. 22, 1929. [Class 124.] In a percussive machine for cutting or dressing stone, rock, ice, &c. a number of ring-shaped cutters 1 provided with chisel edges 5 are hung loosely on pins 7 carried by rotating arms 6, the cutters being adjustable along the pins so as to act in different planes or all in one plane, as for cutting a narrow groove. For this purpose the cutter works on the boss 9 of a double guide arm 10 the inner ends of which slide in a guide groove 11 whilst the boss is threaded to screw along the pin 7. Parts of thread of the boss 9 are cut away as shown in Fig. 4 to facilitate the escape of dust. To reduce shock the arms 6 are connected to the driving spindle by springs 19, or the arms may be replaced by a flywheel. The spindle is driven through bevel gearing by a flexible shaft (not shown) and the parts are enclosed by a casing 40 mounted on adjustable rollers 33, 38, the latter being worm driven from the spindle to feed the device over the work. Handles may be fixed at the sides of the casing. The cutter rings may be shaped, as shown in Fig. 6, so that the thickest parts thereof are immediately under the cutting edges.
Patent GB-1360069-A (GB)
Title: Moulding compositions
IPC: C08K5/151
Filed: 1971-07-05
Abstract: 1360069 Polyamide compositions DYNAMIT NOBEL AG 5 July 1971 [6 July 1970] 31474/71 Heading C3R A themoplastic moulding composition comprises a polyamide and, as a mould-release agent, a C 6-9  lactone. There may be 0À1-6À5% wt. lactone based on the composition. The lactone may be γ- or #-capro-, γ,γ-dimethyl-#- valero-lactone, or the lactone of o-hydroxymethylphenylacetic acid. A long list of polyamide-forming substances is given. The composition may be prepared by mixing the lactone with particulate polyamide in a fluidization mixer, followed by processing in a screw-unit, e.g. an extruder.  Use: Filter-cups, pressure bells, housings, covers, gear-wheels, switches, levers, sheets, bars.
Patent GB-136822-A (GB)
Title: Improvements in Motor-actuated Machine Guns.
Inventor: ANTHONY H G FOKKER
IPC: F41A3/50
Filed: 1919-12-16
Abstract: 136,822. Fokker, A. H. G. Feb. 13, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Machine guns. - Relates to motor-driven machine guns in which the breech-block is reciprocated by a uniformly rotating crank, and consists in making the connecting-rod between the breech-block and the crank telescopic, so that the breech-block may remain stationary in the closed position during a part of the revolution of the crank. In the form shown in Fig. 1, the operating crank a is connected to the sliding breech-block e by a rod comprising a front part c slidable against the action of a spring d in a rear part b, the arrangement being such that, as the crank a swings through the angle x bounded by the lines f, the breech-block is held in the closed position, in which it is locked by pivoted members k.
Patent GB-899446-A (GB)
Title: An apparatus for joining the edges of metal sheets or strips
Inventor: TRMATA ALBERT
IPC: B21D39/02
Filed: 1960-09-13
Abstract: 899,446. Flanging and seaming. METAL HOLDING CO. Sept. 13, 1960, No. 31561/60. Class 83 (4). In apparatus for flanging and seaming the two edges 6, 7, Fig. 5, of metal sheet coverings of roofs, each sheet is passed through a series of rolls which progressively bend up the edges 6, 7 forming an inwardly bent flange 9 on the edge 7 and outwardly and downwardly bent flanges 8, 8a on the edge 6 adapted to engage over the flange 9 of the adjacent sheet during seaming. At least one pair of the flanging rolls 21, 22, Fig. 3, may have a shaping element 25 disposed in the rolls to ensure that the edges are accurately bent. In the seaming operation the upslanting flanges 6, 7 are passed through a series of pressure roll pairs such as 14, 15, Fig. 10, arranged on vertical axes and mounted on the same supporting structure as the rolls 21, 22. In the initial stage the flange 8a, Fig. 8, is pressed under the flange 9 by a conical roll 11 supported on a horizontal axis in a bearer 10.
Patent GB-688876-A (GB)
Title: Improvements relating to the manufacture of hollow glassware
IPC: C03B9/325
Filed: 1950-12-29
Abstract: 688,876. Manufacture of hollow glassware. SMITH, A. E. Dec. 29, 1950 [Jan. 25, 1950], No. 31580/50. Class 56. Hollow glass parisons are formed by delivering a first charge 13 of molten glass downwardly into the cavity of a mould 10, compacting the charge downwardly by gaseous pressure into conformity with the shape of the lower end portion of the mould, subsequently delivering at least one further charge 15 of molten glass downwardly into the mould so that it unites with the first charge, and quickly moving a pressing member 16 upwardly in the mould to press the combined charges internally into conforming contact with the walls of the mould cavity. The first charge is preferably small and sufficient to form only the neck or rim finish, and the temperature of this charge as delivered may be higher than that of the subsequent charge, in certain cases however the temperature of the second charge is the higher. Fig. 1 shows a divided body mould 10 embraced by a divided neck mould 11 with a reciprocable neck pin 12 which forms a starting cavity in the glass 13. The glass 13 is compacted by pressure from a blowhead 14 and/or by suction from below. The blowhead 14 and plunger 12 are then removed, the second charge 15 added, and plunger 16 moved upwardly so that the tip of the plunger enters the cavity in charge 13 at or about the same time that charge 15 meets charge 13. Plunger 16 continues upwardly and a cover 17 is applied-to the top of the mould so that the glass fills the mould. The plunger 16 is then removed, the mould and parison inverted, and the parison transferred to a finishing mould and blown to the required shape. The cover 17 may be omitted to produce a parison without a baffle seam, for example for perfumery ware. The production of wide-necked jars is also illustrated. Figs. 13 and 15 show stages in the manufacture of articles with handles, the parison mould halves being formed with grooves 20 which co-operate to form the shape of the handle, vent holes 21 being provided. The parison is blown in a finishing mould 19 formed with mating grooves to receive the handle, and the cavity formed by the grooves communicates at both ends with the interior of the main cavity of the mould. The parison may be prepared at different stations of a rotary machine and then be transferred to a further rotary machine for blowing &c. Specification 547,474 and U.S.A. Specification 2,289,046 are referred to.
Patent GB-1323301-A (GB)
Title: Continuous production of water-soluble phenol formaldehyde resins
IPC: C08G14/06
Filed: 1970-07-01
Abstract: 1323301 Polymerisation apparatus SAINTGOBAIN 1 July 1970 [3 July 1969] 31789/70 Heading B1X [Also in Division C3] An apparatus for the continuous production of water-soluble phenol-formaldehyde resin comprises storage vessels 1, 2, 3 for phenol, HCHO and an alkaline catalyst respectively, a mixing device 4 for homogeneously mixing the components at a temperature not above 45‹C, which components are continuously supplied from the storage vessels, a reactor 7 which comprises a coil 9 through which the reaction mixture flows, the coil being immersed in a fluid, such as water, at a temperature of 80‹-90‹C, the rate of flow of the reaction mixture and the temperature through the coil being controllable such that the reaction proceeds with the liquid mixture remaining homogeneous. In the embodiment shown in Fig. 1 for the production of unmodified phenol-formaldehyde resin, the mixture leaving reactor 7 passes through cooling apparatus 11 and then into a neutralisation vat 12. In other embodiments the phenol-formaldehyde resin leaving reactor 7 is condensed with urea, dicyandiamide or melamine in a second reactor of the same construction as reactor 7, the homogeneity of the product being preserved. Suitable catalysts include barium hydroxide monohydrate, pentahydrate or octahydrate, or NaOH.
Patent GB-428536-A (GB)
Title: Manufacture of therapeutically active substances
Filed: 1933-11-15
Abstract: Cereal flours are degraded by treatment in a neutral aqueous medium with from 0,5-10 per cent of hydrogen peroxide at a temperature from 10-50 DEG  C.  Suitable flours include wheat flour, rye flour, rice flour, soya bean flour or millet flour.  The reaction is promoted by the addition of arsenic or a phosphate, and the catalytic effect may be increased by means of platinum or pyrolusite.  The quantity of hydrogen peroxide solution used varies according to its concentration, but it is desirable to use sufficient quantity of liquid to obtain a pulpy or thinly liquid reaction mass. Phosphorylation and the conversion of n-hexose to am-hexose is stated to occur, and the product is then dried.  The product is stated to be therapeutically active and promote lactic acid fermentation in the treatment of affections of the female vagina.  The product is used in the form of tablets, globules or powder, and in the case of specific gonorrhea, substances such as arsenic, boron or gonocidal agents may be added.  According to an example, 15 kilos. wheat flour are stirred for three days at room temperature with 25 litres of 3 per cent hydrogen peroxide.  11 kilos. of wheat flour are added, the mixture stirred until homogeneous and then spread on plates and dried at 40-50 DEG  C. under reduced pressure.  It is then ground to powder.ALSO:A therapeutically active product which is stated to promote lactic acid fermentation in the treatment of affections of the female vagina is obtained by degrading cereal flours by treatment in a neutral aqueous medium with from 0,5-10 per cent of hydrogen peroxide at a temperature from 10-50 DEG  C.  Suitable flours include wheat flour, rye flour, rice flour, soya bean flour or millet flour. The reaction is promoted by the addition of arsenic or a phosphate, and the catalytic effect may be increased by means of platinum or pyrolusite.  The quantity of hydrogen peroxide solution used varies according to its concentration, but it is desirable to use sufficient quantity of liquid to obtain a pulpy or thinly liquid reaction mass. Phosphorylation and the conversion of n-hexose to am-hexose is stated to occur, and the product is then dried.  The product is used in the form of tablets, globules or powder, and in the case of specific gonorrhea, substances such as arsenic, boron or gonocidal agents may be added.
Patent GB-652627-A (GB)
Title: Improvements in or relating to calculating machines
IPC: G06C7/06
Filed: 1947-12-02
Abstract: 652,627. Calculating-apparatus. BELL PUNCH CO., Ltd., and WEBB, C. F. Dec. 2, 1947, No. 31864. [Class 106 (i)] In a calculating machine, the movement of a key is transmitted through a chain of links to a rack movable to transmit motion to a pinion operatively connected to a numeral wheel, one of the links being connected to the rack so that any movement of the said link relatively to the rack is solely of a pivotal nature, and being operable, when uniform velocity is being imparted to a key, through the remaining links to impart an acceleration or deceleration to the said rack when moving away from or returning to its initial position respectively. Depression of a key-bar 1 by a key 2 rocks a lever 4 on a pivot 15 through a link 3, and the lever 4 rocks an arm 6 on a pivot 16 through a link 5. The arm 6 functions through a link 7 to raise an actuating rack 8 for a totalizer pinion 9 with which it is swung into contact by a known mechanism during the return stroke. The extent of the movement is determined by a toothed bar 17 pivoted to the lever 4 and to a lever 11, also pivoted to the key-bar 1. The arrangement is such that during the initial movement of the keybar, the rack 8 is not moved and that it then commences to move slowly, thus eliminating any sudden jarring of the totalizer and also ensuring that the totalizer pinion has come to rest before the rack is disconnected at the end of the operation. The restoring spring 18 is connected to an offset portion 4b of an arm of the lever 4 so that the resistance to the depression of a key is substantially constant throughout the depression in spite of the extension of the spring 18. Specifications 514,289, 514,290, 514,291, 516,535, 522,721 and 652,626 are referred to.
Patent GB-657571-A (GB)
Title: A strain clamp for steel-aluminium conductors and a method for attaching said strain clamp
IPC: H02G7/05
Filed: 1948-12-09
Abstract: 657,571. Strain clamps for electric conductors. NECK, C. G. Dec. 9, 1948, No. 31909. Convention date, Jan. 5. [Class 109] In a strain clamp for steel-aluminium conductors comprising an inner steel core clamp 1 having an eye 3 integral therewith and an outer aluminium clamp 4-6-8 with a connection skirt 7, the aluminium clamp is held fast on the steel core clamp and the conductor only by pressing the former first around the conductor and then around the steel core clamp at right angles to the longitudinal direction of the conductor. The steel core clamp 1 comprises a hollow steel cylinder and the aluminium clamp comprises an aluminium tube having outer, middle and inner parts 4, 6 and 8 covering respectively the part 5 of the steel core clamp adjacent the eye, the inner part of the steel core clamp and the aluminium cover 9 of the conductor. The part 5 of the steel core clamp is preferably rough, e.g. rifled or corrugated. The aluminium clamp is preferably produced by die casting from pure aluminium and the skirt 7 is welded thereto. After the steel core clamp has been pressed on to the core, the aluminium clamp is passed thereover up to the eye 3 and is pressed firstly on to the aluminium wires 9 from left to right which can move into a gap between them and the steel core clamp 1 and finally on to the part 5 of the steel core clamp also from left to right. This end may then be caulked against water infiltration.
Patent GB-172944-A (GB)
Title: Improvements in or relating to the precipitation of iron in mineral acid alumina solutions
IPC: C01F7/66
Filed: 1921-11-29
Abstract: The invention relates to the precipitation of iron from impure solutions of alumina in mineral acids by partially neutralizing the solution in the presence of iron oxide which acts catalytically.  The iron oxide, after being used, is re-activated by treatment with dilute acids or with a solution having a higher hydrogen ion concentration than that necessary for the complete precipitation of the iron present.  The solution from which the iron is to be removed may be used for this purpose, the iron being subsequently completely precipitated by neutralizing or by expelling acid by evaporation. The activating process may also be combined with the dissolution of the raw aluminous material in acid.  Iron oxide is introduced during the dissolution of the raw material in acid, and the quantities are so regulated that the hydrogen iron concentration is too great for complete precipitation of the iron, but is sufficiently low to cause re-precipitation in an active condition of most of the iron that has been dissolved.  In an example, a solution of nitrate of aluminium is freed from iron, by partially neutralizing and adding ferric oxide activated by treatment with tenth normal nitric acid.  In another example an acid solution of aluminium nitrate is used to activate the ferric oxide, and is subsequently freed from iron by partial neutralization.
Patent GB-973270-A (GB)
Title: Improvements in or relating to power-driven toothbrushes
IPC: A61C17/40
Filed: 1963-08-13
Abstract: 973,270. Power-driven toothbrushes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 13, 1963 [Aug. 16, 1962], No. 31951/63. Heading A4K. A power driven toothbrush has an electric motor in a housing 1 coupled to two stems 4, 5 which rotate in opposite directions and carry brushes 2, 3 which operate on the teeth at an angle of 90 degrees to each other as shown in Fig. 3, the brush being arranged on one side of the stem.
Patent GB-788481-A (GB)
Title: Apparatus for use with optical projectors
IPC: G03B21/00
Filed: 1955-11-09
Abstract: 788,481. Optical projection apparatus. MARTIN, C. Nov. 9, 1955 [Nov. 9.1954, June 30, 1955], No. 31995/55. Class 97(1) A remotely controlled electric motor has reduction gearing with a flexible drive transmission element coupled with the film advancing means in a strip film opticalprojector to which the motor is releasably secured. Preferably, the end coupling of the drive transmission element 20 is a socket 21 adapted to fit over the manual control knob 8 of the film advancing means. The motor 9 may be fitted on the projector 1 by means of a rigid bar 22 and a spring clip 23 and may be remotely controlled by a push-button switch. Clip 23 may alternatively be replaced by a rigid or resilient jaw or clamp which may be provided with set screws. The motor may alternatively be attached to a movable flap or door of the projector.
Patent GB-446909-A (GB)
Title: Improvements in or relating to the manufacture of boxes from cardboard or like material
IPC: B65D5/4805
Filed: 1934-11-07
Abstract: 446,909. Boxes. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, and AUSTIN, E. L., 183, Wimbledon Park Road, Southfields, both in London. Nov. 7, 1934, No. 32056. [Class 18] A box is formed from a single blank having a bottom portion d, a wing a<1>, b<1>, f<1>, g<1> folded along the base line and three lines parallel thereto to form a side, a partition and a flange resting on the bottom, and a wing a, f, g forming a second side, the top and a closing flap. The flap a engages in a slit n in the other wing, and the flange a<1> resting on the bottom is received in a slit m in the bottom.