baber/WOPTO huggingface dataset:
Patent GB-151295-A (GB)
Title: Improvements in pneumatic percussive tools
IPC: B25D9/16
Filed: 1918-12-09
Abstract: 151,295. Armstrong, Whitworth, & Co., Sir W. G., Wilson, R. W., and Campbell, F. A. Dec. 9, 1919. Percussive hand tools.-In a pneumatic percussive hand tool, the distributing valve 10 comprises a ring portion and a coned or flat flange; a valve box 8 may be provided therefor or the valve may seat against the cylinder end. With the valve 10 in the position shown, fluid passes through port 12 to the rear cylinder end to move the piston 3 forward; with the valve reversed, fluid passes through ports 13, 14, 16, chamber 15, and port 17 to effect the return stroke. During each stroke, after the piston 3 passes exhaust ports 19, fluid is compressed ahead of the piston and, assisted by live fluid in port 12 or 14, moves the valve 10. The chamber 15 is formed either in the valve box or in the cylinder walls. The throttle valve comprises an inner part 21 and an outer relatively-movable part 22 normally held in closed position by springs 24, 25 or fluid pressure. Initial movement of the trigger 5 moves the part 21 through the outer part and admits fluid to the tool through ports 28, 29; further movement of the trigger causes a shoulder to move part 22 and admit full pressure to the cylinder. A pivoted stop 33 engages the trigger to control its movement.
Patent GB-682773-A (GB)
Title: Rubber-like copolymers
IPC: C08F279/02
Filed: 1949-08-08
Abstract: A conjugated diolefin of 4 to 6 carbon atoms with, if desired, up to 5 per cent by weight of at least one other monomer copolymerizable therewith, is partially polymerized in emulsion in the presence of an oxygen-liberating catalyst until 5-80 per cent of the initial monomer is converted into a polymer, at least one other monomer originally present therein in amount between 0 and 5 per cent by weight is added in one step or in increments and the polymerization continued until at least 50 per cent of the monomers now present are polymerized. Specified diolefins are butadiene, piperylene, isoprene, 2,3-dimethylbutadiene, 2-methylpentadiene, n-hexadiene, cyclopentadiene, methylcyclopentadiene, and cyclohexadiene. Specified other monomers are acrylonitrile, methacrylonitrile, ethacrylonitrile, chloracrylonitrile, styrene, vinyl chloride, vinylidene chloride, methyl acrylate, methyl methacrylate, chloroprene, vinyl isobutyl ether, and vinyl ketones.  Emulsifying agents such as an alkali soap of caprylic, carnaubic, lauric or mixed coconut oil acids, ammonium, sodium or potassium oleate or stearate, sodium lauryl sulphate, sodium tetra-isobutylene sulphonate, aromatic alkyl sulphonate salts and the sodium salt of a formaldehyde condensation product of naphthalene sulphonic acids may be used. The polymerization temperature may vary from -20 DEG  to 60 DEG  C. and at the low temperatures an anti-freeze agent such as methanol, ethanol, ethylene glycol, propylene glycol or glycerine may be present.  Specified catalysts are hydrogen peroxide, benzoyl peroxide, cumene hydroperoxide, tertiary butyl hydroperoxide, potassium persulphate or other alkali persulphates or perborates or the corresponding ammonium salts or a Redox catalyst.  A polymerization modifier such as hexyl, dodecyl, lauryl, tetradecyl or octadecyl mercaptan, or diisopropyl dixanthogendisulphide may be present as may also activators such as potassium ferricyanide, tolyl diazobeta-naphthol, solution of ferric pyrophosphate or ferrous sulphate and sodium pyrophosphate in dextrose, fructose, invertose, polyglycols or diacetone alcohols.  The preparation of terpolymers is described. The resulting polymers may be stabilized with hydroquinone and phenyl betanaphthylamine and coagulated with brine and dilute acetic acid or may be vulcanized using such compounds as mercaptobenzothiazole, tetramethyl thiuram disulphide, the carbamates, diphenyl guanidine, and quinone dioxime compounds together with channel black, zinc oxide, stearic acid, sulphur and benzothiazyldisulphide.  The polymers may be used to plasticize vinyl chloride-acetate copolymers.
Patent GB-1599118-A (GB)
Title: Stretching apparatus for spinning machines
IPC: D01H5/22
Filed: 1978-05-18
Abstract: The drafting unit, for example for a spinning machine, possesses a drawing-in roller (1), a middle roller (2) and a delivery roller (3) which all have long lengths. Gearwheels (7 to 12; 7' to 12'), separate for the three rollers (1, 2, 3) and forming a gear (13; 13'), are provided at wide longitudinal intervals. Incorporated into each gear (13; 13') is a torque limiter (16) which can transmit a maximum torque B satisfying the condition A<B<C. In this, A represents the maximum torque occurring in the gear system when the drafting unit is operating normally, and C represents the minimum torque resulting in damage, in each case relating to the place where the torque limiter (16) is incorporated. Damage to the gear (13, 13') caused by faulty operation can thereby be reliably prevented. By limiting the torques occurring in each gear system (13; 13'), the force transmission can be interrupted by means of the torque limiter (16). <IMAGE>
Patent GB-723166-A (GB)
Title: Improvements in washing machines
IPC: D06F17/06
Filed: 1953-08-17
Abstract: 723,166. Washing-machines. WILKINS & MITCHELL, Ltd., and WILKINS, E. W. Aug. 17, 1953 [Aug. 18, 1952], No. 20666/52. Class 138 (2). A washing machine is provided in the base of the washing compartment 12 with a constantly rotated disc-like impeller 10 which is formed on its underside with an inwardly-facing annular channel 15 into which liquid is forced by centrifugal action, means being provided for collecting and drawing off by the action of its own momentum the liquid entrained in the channel 15, whereby the impeller can act as a liquid discharge pump. A discharge pipe 25 has a horizontal portion 26 with an intake opening 27 facing against the direction of rotation. The pipe 25 has a flexible hose 28 secured to it by a cleat 31 carrying a handle 32 whereby the pipe 25 may be pivoted in a boss 29 to move the opening 27 clear of the channel 15. The pipe portion 26 moves across a bracket 33 provided with stops 34 and indentations 35, 36 for indexing the pipe in its operative and inoperative positions. For draining the last few drops of liquid from the compartment, the pipe 25 is provided with one or more openings 37 (Fig. 3) which move out of line with arcuate blocks 38 when the pipe is moved to the inoperative position. An electric heating element 39 is mounted beneath the impeller 10. In a modification (not shown) the discharge pipe is fixed in position and is provided with a control valve.
Patent GB-649125-A (GB)
Title: Improvements in and relating to the sealing of lidded boxes or containers
IPC: B65D55/08
Filed: 1948-08-05
Abstract: 649,125. Sealing containers. BARON, T. Aug. 5, 1948, No. 20695. [Class 125(iii)] The joint between a box lid and the box is sealed by a strip consisting of an outer layer of metal foil and an inner layer of paper which is adhesively applied to the foil and is impregnated on its exposed face with a compound containing rubber, gutta percha or other material which is rendered adhesive by heat as it is applied to the box and lid. The adhesion between the paper and the box and lid is stronger than the union between the impregnated part of the paper and the remainder of the strip, so that attempts to remove the strip illicitly result in the part applied to the box and lid separating from the remaining part of the strip. The separation may be between the paper and the foil, or it may be by splitting of the paper. An impregnating compound is made of a micro-crystalline wax and polyisobutylene. The same compound may be used to stick the paper to the foil, but paraffin wax is added to reduce its adhesive strength. The paper and foil may be stuck together by a modified starch adhesive. Alternatively, the paper strip is moistened in a bath of water and glycerine, and the paper is partly dried before impregnating with the wax compound. The residual moisture prevents the compound from penetrating deeply into the paper, so that the paper splits along a lamina if the foil and paper strip on the box is tampered with. Specification 539,830, [Group XV], is referred to.
Patent GB-1113273-A (GB)
Title: A dispersion type metallic oxide silver alloy membrane for use in a device for separating and purifying oxygen
IPC: C22C1/10
Filed: 1965-05-17
Abstract: Silver is alloyed by melting it with 0.01-2.0% of one or more of Al, Be, Ce, Cd, Mg, Mn, Si, Th, Ti and Zr, and the solidified alloy is forged and rolled to form a membrane which is then heated in air and/or oxygen at 600-800 DEG C. to internally oxidize the alloy.  The heating is preferably at the rate of 20 hours per m.m. of thickness of the membrane.  The membranes so produced may be used for the separation of pure oxygen from impure mixtures thereof (see Division B1).ALSO:Dispersion hardened silver (see Division C7) is used as the membrane in an apparatus for separating pure oxygen from an impure mixture thereof.  Apparatus described are that of Fig. 1 (A) wherein there is only one membrane 2 between the impure gas inlet 1 and the pure oxygen outlet 4 and Fig. 1 (B) having a bundle of thin walled tubes 21.  In examples the impure oxygen is introduced into the system at 900 DEG C and at 10 or 30 kg/cm2 pressure.
Patent GB-1220864-A (GB)
Title: A plate hopper for an addressing machine
IPC: B41L47/18
Filed: 1968-05-02
Abstract: 1,220,864. Addressing - machines. PITNEYBOWES Inc. 2 May, 1968 [3 May, 1967], No. 20806/68. Heading B6D. [Also in Division B8] A plate hopper for receiving metal address plates 20 in an addressing machine comprises a front wall 12, a pair of side walls 10 and a bottom wall 22, the bottom wall being attached to one side wall and spaced from the other side wall to permit plates to be fed from the hopper, the front wall 12 having a vertical slot 16 for receiving a pin 54 on which a weighted member 50 is mounted, the assembly of walls and weighted member being pivotable from a feeding position to a loaded position shown in dotted lines. The bottom wall 22 is spaced from the front wall 12 to permit pusher members on a chain 24 to engage the lowermost plate in the hopper, a gate 46 being spring urged into a position closing the space between the bottom and front walls to prevent plates from sliding out of the hopper whilst in the loading position, the gate being held open by engagement with a stop 48 whilst in the feeding position. The weight 50 can be slid upwardly, and the hopper pivoted into the loading position, by means of a handle 58. When the hopper is in the feeding position, the stack of plates rests on a track 18 and clear of the bottom wall 22.
Patent GB-1179689-A (GB)
Title: Laundry Framework for Drying and Airing Clothes
IPC: D06F57/12
Filed: 1967-05-04
Abstract: 1,179,689. Clothes airers; laundry lines. GUNTER LEIFHEIT K.G. 4 May, 1967 [5 May, 1966], No. 20830/67. Heading A4U. Rings 6, secured to laundry-support lines 7, are slidable on outer arms 5 and are collected on inner arms 4 of a wall bracket 3 so that the arms 5 can be folded inwards to cover the lines when out of use. A rod 9 secured to the outermost rings maintains the arms extended and the rings are interconnected by cords 8. In modifications the arms 4 are secured directly to a wall or the bracket 3 is formed as a box receiving the lines and closed by the arms.
Patent GB-1423213-A (GB)
Title: Stretchable non-woven polyamide sheet
IPC: D04H3/105
Filed: 1973-05-02
Abstract: 1423213 Making artificial leather UNITIKA Ltd 2 May 1973 [2 May 1972] 20830/73 Heading B2E [Also in Divisions B4 B5 D1 and D2] An artificial leather is obtained by coating a foamed polyvinyl chloride resin onto both surfaces of a stretchable non-woven sheet having mutually entangled looped continuous composite filaments composed of at least two different homopolyamides or homopolyamide mixtures in side by side or eccentric conesheath configuration, each filament having a denier of 0.8 to 2, a residual elongation of not more than 100% and at least 20 helical crimps per inch with an average helical radius of 0.1 to 0.5 mm. If the ratio c=b/a is measured, where a is the length of a straight line separating two points on a filament and b is the length of the filament between the lengths then for a=5 mm the probability that c#3 is 20% or less and for a=20 mm the probability the c#2 is 60% or more. The homopolyamide may be nylon 6, nylon 66 or nylon 4. In example 1 the two components are nylon 6 homopolymers of different viscosities, in example 6 the components are nylon 6 and nylon 66 and in other embodiments one or both components may comprise a mixture of the same or different homopolymers. The multifilaments are spun from a multihole spinneret, drafted, taken up at at least 1500 metres/minute by an air stream which deposits them on a moving surface to form a bulky web and allowing the web to stand or heat treating it, to allow the crimps to develope. The drafting may be performed by rollers or by the air stream. Preferably the distance I between spinneret 1 and the ejector 3 is 50 to 100 cm and the distance III between ejector and receiving surface 4 is 70 to 140 cm, extension tubes 3', 3" being fitted to the ejector if necessary to attain these distances. The receiving surface 4 is a wire belt or a perforated cylinder moved at a constant rate. Collection of the filaments may be assisted by suction and/or by electrostatic charging. The ejector(s) 3 may be traversed across the collector surface. The filaments may form bundles of up to 24 parallel filaments but the crimps of such filaments are not completely in phase. Alternatively electrostatic means may separate the filaments before collection. The sheet may be cohered by 50 to 3000 needle punchings or fluid punchings / sq. in. In example 5 a needled sheet is treated with an aqueous emulsion of silicone oil to form a mosaic of hydrophillic and hydrophobic areas then immersed in a dimethylformamide solution of polyurethane to spot bond the sheet. The sheet may be passed between embossing rollers at 180C having a woven pattern and the embossed surfaces coated with foamed vinyl chloride resin (example 6). In another example the fibres of the surface are raised to form an artificial chamois leather.
Patent GB-1272152-A (GB)
Title: Method and suction dredging installation for conveying a suspension of mainly dredging spoil and water through a pipe
Inventor: KONING JAN DE
IPC: G01N9/26
Filed: 1969-04-23
Abstract: 1,272,152. Dredging. INGENIEURSBUREAU VOOR SYSTEMEN EN OCTROOIEN SPANSTAAL N.V. 23 April, 1969 [24 April, 1968], No. 20836/69. Heading E1F. [Also in Division G1] In an apparatus or method of assaying a mixture, which includes water, any other substance (such as dredging spoil) and a gas, flowing through a pipe, pressure at upper, middle and lower conduits are picked-up by pressure difference pick-ups 443, 496 and 497; the pressure in upper conduit sections 492, 493 being higher than in the lower conduit sections; velocity meters 424j, 424k indicate the mixture velocity respectively in the upwardly and downwardly directed portions of the "U" shaped pipe, and the density of the mixture is thus obtained so that it is then possible to calculate the amount of other substance, such as dredging spoil, in the mixture. By passing the measured results to a calculating amplifier, provided with factors according to a formula and integrating the output over a specified time the total volume of dredging spoil, passing in such specified time, can be determined.
Patent GB-316000-A (GB)
Title: Improvements in and relating to domestic stoves and the like
IPC: F24B1/182
Filed: 1928-07-18
Abstract: 316,000. Clarke, S. J. July 18, 1928. Combined open fireplaces and cooking- stoves; convertible close and open fireplaces; canopies; doors; supports for articles to be heated.-In a combustion range comprising side ovens 12, 13 and a sliding door 3 for closing the fire, which is accommodated when not in use in a swinging canopy 4, the canopy is adapted when in the closed position shown in Fig. 2 to close the direct exit to the flue above the fire. In the construction shown, the door 3 slides in grooves formed by L-section bars 4<c> attached to the inner faces of side wings 4a of the canopy, and a plate 4b also carried by the canopy serves both to support the door in the raised position and to close the flue outlet. A mica or like window 8 is provided in the door 3. When the fire is closed, the gases pass through a flue 17 to flues surrounding the ovens and controlled by dampers 18<a>, 19<a>. A plate-heating or clothes-airing chamber 14 above the ovens contains sliding U-shaped supporting rods 20 carried on rollers 21 and guided by a rear upstanding plate 24 engaging a slide 25.
Patent GB-237747-A (GB)
Title: Improvements in and relating to containing boxes for powder puffs
IPC: A45D33/00
Filed: 1924-09-04
Abstract: 237,747. Abbott, E. W., and Pearson & Say, Ltd. Sept. 4, 1924. Contents, facilitating access to; lids.- A powder-puff is contained in the upper of two receptacles a, b which are hinged together and fastened by a pin p and bayonet slot q, the lower receptacle a forming the powder container and being provided with a dished lid d flanged at e and formed with holes i. A dished and perforated disc k is pivoted at n on the lid d and carries the pin p, and the relative positions of the disc k and lid d are such that when the receptacles a, b are fastened together the perforations are out of register, but on moving the pin p to open the device the perforations are made to coincide and the puff may be charged with powder by shaking the device. A ring o is provided to facilitate removal of the lid d, and a mirror r is secured in the member b.
Patent GB-343864-A (GB)
Title: Improvements in stretching and widening appliance for boots and shoes
IPC: A43D3/08
Filed: 1930-07-10
Abstract: 343,864. Trees and stretchers for boots &c. REHKEMPER, J. H. and BOHMER, R., Haspe, Westphalia, Germany. July 10, 1930, No. 20867. Convention date, July 10, 1929. [Class 17 (iii).] A shoe stretching and widening device has mounted thereon a support adapted to engage and support the sole of a shoe during widening. As shown, a stretching and widening device comprising a pair of pivoted members 2, 4 carrying members 8, 10 respectively, to engage the heel and toe, and adapted to be moved apart by a screwed spindle 12, carries a stirrup-shaped support 28, the cross part 30 of which is adapted to support the sole when the parts of the longitudinally-split toe member 10 are wedged apart by operating the screwed spindle 20. The stirrup 28 has a series of perforations 32 at the upper ends of its limbs, any pair of which, according to the size of the shoe, may be engaged with a cross-limb carried by a screwed spindle 36 passing through a nut 38 hinged to an extension on the member 4.
Patent GB-854789-A (GB)
Title: Improvements in or relating to domestic cooking ovens
Inventor: RICHARDSON WILLIAM
IPC: F24C15/02
Filed: 1958-06-30
Abstract: 854,789. Oven doors. STOVES Ltd. June 4, 1959 [June 30, 1958], No. 20884/58. Class 126. Sealing means for an oven door comprises a tubular strip or strips 1, Fig. 3, of silicon rubber preferably of D or circular cross-section, secured by a more rigid element preferably a metal wire or strip 3, to either the door or the door frame 7. The ends 4, 5, Fig. 5, of the wire or strip may be cranked to facilitate their passage through apertures 6 in the door or frame or they may co-operate with sockets (not shown) on the frame outside the sealing area engaged by the door.
Patent GB-1104149-A (GB)
Title: Improvements in or relating to channel for a scraper chain conveyor
IPC: B65G19/28
Filed: 1965-03-12
Abstract: 1,104,149. Endless conveyers. GEWERKSCHAFT EISENHTTE WESTFALIA. 12 March, 1965 [19 Nov., 1964], No. 20891/66. Divided out of 1,104,158. Heading B8A. Reinforcement portions 12, 18 for a scraper chain conveyer channel length 10 have centreprojecting members 15, 22 which extend towards the centre of the channel bottom 11 to a greater degree than the centre projecting member of the channel length. The arrangement reduces chain wear on the bottom 11.
Patent GB-517073-A (GB)
Title: An improvements in or relating to pokers for fires
IPC: F24B15/00
Filed: 1938-07-15
Abstract: 517,073. Domestic pokers. BROOK, J. A. July 15, 1938, No. 20976. [Class 126] A slidable member with a projecting collar d' in the dotted line position prevents the hot end of the poker damaging the hearth when it is laid down. The handle b may be resilient. Specifications 157,617, and 160,346, [both in CLass 126] are referred to.
Patent GB-583436-A (GB)
Title: Improvements in and relating to thermal switches
IPC: H05B41/06
Filed: 1944-10-27
Abstract: 583,436. Temperature-responsive actuating- elements. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 27, 1944, No. 20980. Convention date, Oct. 28, 1943. [Class 64 (ii)] [Also in Groups II and XXXVII] An ambient-temperature-compensated thermal switch (see Group XXXVII) for starting discharge lamps has two bimetallic strips 6, 7. of which 6 has a substantially uniform deflection with temperature rise, whilst 7 reaches a maximum deflection and may even reverse, thus making contact. The elements of strip 6 are composed, respectively, of 22 per cent. nickel, 8 per cent. bromium, 70 per cent. iron and 42 per cent. nickel, 58 per cent. iron; and strip 7 has one element of nickel and the other 36 per cent. nickel, 64 per cent. iron.
Patent GB-791953-A (GB)
Title: Novel cyclic diketones and ketals thereof and a process for the manufacture of the same
IPC: C11B9/00
Filed: 1956-07-06
Abstract: The invention comprises cyclic diketones of formula <FORM:0791953/IV (b)/1> wherein the broken line indicates that a double bond may be present in the 2,3-position, and 4 : 4-ketals thereof, such as 2 : 6 : 6-trimethyl4 : 4 - ethylenedioxy - cyclohexen - (2) - one and 2 : 6 : 6 - trimethyl - 4 : 4 - ethylenedioxy - cyclohexanone. The diketones and ketals are prepared by oxidizing 2 : 6 : 6 - trimethyl - cyclohexen - (2) - ol - (1) - one - (4) (cf. Specification 791,954) to give 2 : 6 : 6-trimethyl-cyclohexen-(2)-dione-(1 : 4) and, if desired, hydrogenating the nuclear double bond and/or ketalizing the 4-oxo group.  The oxidation may be carried out in known manner using, e.g. chromic acid or tertiary butyl chromate or manganese dioxide or aluminium isopropoxide or phenoxide in the presence of carbonyl compounds.  The hydrogenation may be carried out using zinc and acetic acid.  The ketals may be prepared by known methods.  In examples: 2 : 6 : 6-trimethyl - cyclohexen - (2) - ol - (1) - one - (4) was oxidized with chromic acid to give 2 : 6 : 6-trimethyl - cyclohexen - (2) - dione - (1 : 4) which was reduced with zinc and acetic acid to give 2 : 6 : 6 - trimethyl - cyclohexanedione - (1 : 4).  The phenylsemicarbazones of both ketones were prepared.  The 4 : 4-ethylenedioxy derivatives of both diketones were prepared by heating them with ethylene glycol in the presence of p-toluene sulphonic acid and distilling off the water formed.
Patent GB-423434-A (GB)
Title: Improvements relating to covers for sewer manholes and for lampholes or inspection openings
IPC: E02D29/14
Filed: 1933-07-26
Abstract: 423,434. Manhole frames and covers. BLAKEWATER FOUNDRY, Ltd., George Street West, and ASPDEN, T. A., Loden, Earl Street, both in Blackburn. July 26, 1933, No. 21013. [Class 107] The triangular cover A of a sewer manhole or the like, is supported at each of its three corners upon bearings D in the frame B and has downwardly converging sides E which bear against similarly formed sides in the opening in the frame, the frame having projections F or notches for keying with the surrounding road material, and being wholly or partly surrounded by a flange G to cover in these parts of the manhole H that are not covered by the triangular cover. Specification 375,814 is referred to.