baber/WOPTO huggingface dataset:
Patent GB-677641-A (GB)
Title: Improvements in or relating to a process of polymerizing ethylene
IPC: C08F10/00
Filed: 1949-05-16
Abstract: Solid polymers are prepared by polymerizing ethylene in the gaseous state and under elevated pressure, at a temperature below the softeningpoint of the polymer, in the presence of a catalyst which is mixed homogeneously in the reaction zone with the ethylene, an aqueous solution of a surface-active substance being maintained on the interior surfaces of the reaction vessel to prevent access of polyethylene thereto.  Catalysts specified are peroxydicarbonate esters of the general formula <FORM:0677641/IV (a)/1> where R1 and R2 may be the same or different organic radicals such as methyl, ethyl, propyl, butyl, amyl, benzyl, phenyl, tolyl, cyclopentyl, methylcyclopentyl, cyclohexyl, vinyl, allyl, and propenyl radicals; tert.-butyl hydroperoxide; and polymeric peroxy compounds produced by the reaction between sodium peroxide and ethylene glycol bis-(chloroformate).  Surface-active substances specified are sodium or potassium oleates or stearates, sodium dodecylbenzenesulphonate and mixtures thereof with sodium sulphate, diisopropyl naphthalene sulphonates, alkyl phenol sulphonates, petroleum sulphonates, alkyl sulphonates, sulphonated fatty esters, sulphonated fatty acid amides, sodium lauryl sulphate, sulphated fatty acids, quaternary ammonium halides, phosphorated alcohols, alkyl phosphoric acid soaps, fatty acid soaps of alkylolamines, sodium metasilicate, trisodium phosphate, and sodium hexametaphosphate.  The ethylene is preferably purified before polymerization, suitably by treatment with heated copper, alkali metal, or alkaline earth metal.  Polymerization may be carried out either intermittently or continuously, the catalyst being injected into the ethylene stream, or separately into the reaction vessel.  The solution of surface active substance may be sprayed on to the walls of the reaction vessel, or the reaction vessel may be rolled to distribute the solution on its walls.  The polyethylene is collected as an aqueous suspension, and after separation may be milled to improve its flexibility. Specification 560,497, [Group III], is referred to.
Patent GB-495378-A (GB)
Title: Improvements in electro-magnetically operated mechanical shavers and the like
IPC: B26B19/28
Filed: 1937-05-07
Abstract: 495,378. Reciprocating motors. WILKINSON SWORD CO., Ltd., and RANDOLPH, H. B. May 7, 1937, No. 13048. [Class 35] [Also in Group XIV] A blade 17 is mounted on pivots 18 on a frame 15, 16 carried by leaf springs 4, 5, adapted to be vibrated by A.C. passed through an electromagnet 11, the natural frequency of the springs and their load being adjusted to that of the A.C. The armature 9 is secured centrally to one of the springs. A movable pin 43 placed between the spring 4 and the casing is used to adjust the period of the springs to the current frequency.
Patent GB-557098-A (GB)
Title: Improvements in or relating to platen presses for the cutting out of cardboard blanks
IPC: B65H29/04
Filed: 1941-10-09
Abstract: 557,098. Cutting-out presses. BOBST & FILS SOC. ANON., J. Oct. 9, 1941, No. 13056. Convention date, Oct. 10, 1940. [Class 31 (i)] In a platen press for cutting-out cardboard blanks in which the blanks are carried into operative position between a movable member 5 carrying the counterpart of a fixed cutting or other die 2 by means of gripper bars 6 on a chain 7 which is moved intermittently around the fixed member 1, the gripper bar 6 is raised into position to bring the blank into the plane of the die 2 by means of an angle iron 9 attached to the platen 3 which is raised by toggle mechanism. The bar 6 may also be raised by'cam mechanism independently of the iron 9. The member 5 is held in working position by means such as are described in Specification 557,127 of even date. Both the die members 2, 5 can be withdrawn laterally of the press to positions 2<SP>1</SP>, 5<SP>1</SP>, Fig. 2, through guides in lateral brackets 10 when the platen is fully open, and an indicating device may be provided to enable the operator to determine that the platen is open fully.
Patent GB-712720-A (GB)
Title: Improvements in the production of salts of tertiary and quaternary bicyclic ethylene imine bases
IPC: C07D203/26
Filed: 1952-05-23
Abstract: A process for the production of salts of tertiary and quaternary bicyclic ethylene imine bases consists in reacting alkylating agents of the general formula R-X (in which R is an alkyl, cycloalkyl or aralkyl group which may also contain substituents and X is chlorine, bromine, iodine or the radical of sulphuric acid or a sulphonic acid) with spirocyclohexylethylene imine or its derivatives, and if desired causing the free bases set free from the resulting tertiary salts with alkali to react with further amounts of the same or another compound of the type R-X to form quaternary salts.  The group R may contain halogen, hydroxyl, carbonyl, nitro, carboxylic acid ester or sulphonic acid groups, while X may be chlorine, bromine, or iodine, or the radical of sulphuric acid or of an aliphatic, aromatic or cycloaliphatic sulphonic acid.  There may also be used as reactant R-X compounds containing two X groups such as 1,6-dichlorhexane or p-xylylene dichloride, which may be reacted with one or two molecular proportions of the spirocyclohexylethylene imine.  In examples: (1) spirocyclohexylethylene imine is heated with ethyl chloride to give N - ethylspirocyclohexylethylene imine, which on heating with benzyl chloride gives the N-ethyl-N-benzylspirocyclohexylethylene imonium chloride.  In place of ethyl chloride may be used in similar reactions n-propyl bromide, isobutyl iodide, cyclopentyl bromide, dimethyl sulphate or ethyl p-toluene sulphonate, and in place of benzyl chloride may be used hexane or cyclohexane sulphonic acid benzyl esters; (2) by using benzyl chloride, N-benzylspirocyclohexylethylene imine is prepared and reacted with dodecyl bromide to give the corresponding quaternary compound. p-Bromo- or m-nitrobenzyl bromide may be reacted in place of benzyl bromide, and o -bromo-capronic acid methyl ester may be reacted in place of dodecyl bromide; (3) spirocyclohexylethylene imine is reacted with ethylene dichloride to give N,N1-ethylene - bis - spirocyclohexylethylene imine, which is reacted with benzyl chloride to give the bis - quaternary compound.  1,4 - Dibromo butane, 1,6-dibromo-hexane or p-xylylene dichloride may be reacted similarly, in place of the ethylene dichloride.  Spirocyclohexylethylene imine can be prepared by reacting formaldehyde with nitrocyclohexane, catalytically reducing the 1-nitro-1-methylol - cyclohexane obtained, and leading the resulting 1-amino-1-methylol-cyclohexane at about 300 DEG  C. over alumina.
Patent GB-131835-A (GB)
IPC: F16K31/04
Abstract: 131,835. Stanton, S. B. March 1, 1919. Door guards.-Guards for door-ways in high buildings through which goods are taken in and out consist of two gates hung on rising hinges c, c<1> so as to close automatically when the goods have passed. The top rails b, b<1> are shaped to form buffers to prevent the gates from opening outwards whilst allowing them to open inwards. The hoist rope on which the goods are suspended passes between a pair of rollers d, d' and the goods hit against the gates and cause them to open. The lower parts e, e<1> of the gates are secured to the brackets a, a' by projections fitting into sockets f, f<1>, g, g<1> and are removed when it is desired to take goods outwards. Specification 22871/11 is referred to.
Patent GB-717008-A (GB)
Title: Morphine derivative
Filed: 1952-05-23
Abstract: The invention comprises 14-hydroxy-dihydromorphinone and its salts, and preparation thereof by demethylating 14-hydroxy-dihydrocodeinone. In the example concentrated hydrobromic acid is used, the cooled diluted product being made alkaline and extracted with a water-immiscible liquid (e.g. chloroform) to remove unwanted material; the aqueous phase is acidified, ammonia is added and the desired product extracted with ether and crystallized from ethanol. Other demethylating agents are specified.  The product forms salts with acids, e.g. a hydrochloride, hydrobromide, hydriodide, sulphate, orthophosphate, metaphosphate, nitrite, nitrate, bitartrate, salicylate, terephthalate, acetate, propionate, phthalate, benzoate, camphorsulphonate and citrate.  It may be remethylated to 14-hydroxy-dihydrocodeinone.
Patent GB-578837-A (GB)
Title: Improvements in and relating to aircraft
IPC: B64D39/00
Filed: 1941-10-14
Abstract: 578,837. Propelling aircraft. BOULTON PAUL AIRCRAFT, Ltd., and CLARKE, W. H. V. Oct. 14, 1941, No. 13199. [Class 4] An aircraft wing has one or. more ducts therein for receiving a jet propulsion unit, the duct, or each duct, having an elongated inlet orifice at the leading edge of the wing and an elongated outlet orifice in the upper surface of the wing near the trailing edge, the intermediate portion of the duct being of circular cross-section to accommodate the compressor and combustion chamber of the unit, the change of cross-section along the duct being gradual. A compressor 1 is driven by a turbine 2 to the rear of a combustion chamber 3, and the gases are discharged over the rear flaps 5 or over the ailerons of the wing to increase their effectiveness. A flap 7 at the upper edge of the rear orifice is linked to the flap 5 and remains parallel to it throughout its adjustment range so that the jet is always tangential to the flap or aileron. An electric starting motor at the front of the compressor acts as a generator when the compressor is running.
Patent GB-245339-A (GB)
Title: Improvements in or relating to "bumpers" or buffers for use in connection with doors, especially doors of vehicles
IPC: B60J1/00
Filed: 1925-05-20
Abstract: 245,339. Beaton & Son, Ltd., G., and Beaton, G. H. May 20, 1925. Stops.-A resilient buffer pad which projects outside of its casing and the pillar of a door, particularly the door of a vehicle, is adjusted in relation to the surface of the pillar by screws or other spacing means engaging an internal adjusting plate movable conjointly with and positively acting on an internal portion of the pad. The pad C ofrubber is formed with vertical notches c<1>, c<3> to fit over the front flange a<5> of the casing A, which is secured to the door pillar. The rear flange a<6> of the casing enters a recessed part of the pillar. The shank c<3> of the pad is pushed through the opening a<3> so that the tapered part c<4> which is to face the door, can pass outside the front flange a<5>. An adjusting plate E is fitted in the slot c<5> of the pad, its position being regulated to adjust the pad by screws F, as shown in Fig. 4. Springs G, g<1> press the plate firmly against the part c<6> of the pad.
Patent GB-275746-A (GB)
Title: Improvements in a machine for placing washers on the pins of rubber heel moulds
IPC: B29D99/00
Filed: 1926-05-25
Abstract: 275,746. Kutchens, E. May 25, 1926. Feeding articles from hoppers and shoots.-In a machine for feeding washers to the pins of rubber heelmoulds of the kind described in Specification 255,495, the ends of the shoots 30, Figs. 5, 6 and 7, are formed with shoulders 37 to provide a stop for the end washers which are held in position by springs 38 allowing easy withdrawal of the washers by the pins as the machine is traversed over the moulds. To prevent overlapping of the washers in the shoots and allow space for irregularities in the washers, a rail 32 is provided on the bottom of the shoots and the sides 29 are formed with overhanging edges. Alternatively, the rail may be suspended above the bottom of the shoots. The shoots are supplied from a container 21, Figs. 13 and 14, which has tangential delivery openings 28 leading to the shoots. A pivoted bail 57 is adapted to wipe across the entrance to the openings 28 to prevent jamming. The supply in the container 21 is replenished from a hopper 66 through a passage 65. The shaft 52 carrying the wiper 57 and an agitating finger 69 in the hopper 66 is driven through suitable gearing from a motor 25, the switch of which is enclosed in a housing 70 near the handle of the machine.
Patent GB-669232-A (GB)
Title: Manufacture of metal aquarium shades
IPC: A01K63/00
Filed: 1950-05-26
Abstract: 669,232. Making hollow-ware. DALE, W. N. June 22, 1950 [May 26, 1950], No. 13334/50. Class 83 (ii). In a method of making a shade fitting over the top of an aquarium tank by bending up a sheet metal blank comprising a top wall 1 and integral side wall forming portions 2-5, integral flanges 6a, on the side wall forming portions 2-5, are folded upon themselves to give rigidity to the projecting ends of these flanges are inserted one within the-other and riveted or welded together. Lips 10 may be formed integral with the edge of the flanges 6 for returning condensate formed on the inside of the shade back into the tank and flaps 8 may be provided at the ends of the side walls for riveting or welding at the corners. One of the side walls 5 is vertical and has apertures for fixing an electric lamp holder and for ventilation. The other three side walls are sloping so that the shades may be stacked one within the other for storage &c.
Patent GB-263668-A (GB)
Title: Improvements in name or sign plates
IPC: G09F13/20
Filed: 1926-05-26
Abstract: 263,668. Heilbronner, E. May 26, 1926.- Signs.-In sign plates comprising a back of metal &c. and a transparent front, between which is located a legend &c. composed wholly or in part of selfluminous matter, the back a is faced with a light coloured coating, and to the rear of the, front c is applied a dark coating d leaving bare the legend portions e which are covered wholly or partly with luminiferous matter. The luminous matter may be in dots or stripes.
Patent GB-133700-A (GB)
IPC: B23K11/10
Abstract: 133,700. Schroder, E. May 30, 1918, [Convention date]. Welding.-In an electric seam-welding machine having one or more roll electrodes, the electrode rolls step-by-step on the seam, and is only subjected. to current during the period of rest of each step. The parts may thus be welded and allowed to cool and thus rendered solid so that on subsequent feeding of the work there is no plastic metal liable to be torn out by the rolls due to faulty feed or the presence of a film of oxide, and burning at the welding point or re-opening of the parts just welded is avoided. The material may be fed by a step-by-step rotation of a pair of roll electrodes, or a mandrel electrode carrying the material and co-operating with a roll electrode which is rotated step-by-step may be moved stepby-step, or a travelling roll moved step-by-step on a fixed mandrel electrode. In the form shown in Fig. 1, the electrode 1 is rotated by a ratchet wheel and pawl 3 from an eccentric 4, the rod 5 of which is connected to an adjustable rod 6 so as to vary the advance of the roll. In the form shown in Fig. 3, the pawl lever is connected to the eccentric by a two-part rod 5 having a coupling nut 9 for adjusting lost motion so as to vary the period of rest. The current is switched on and off by a contact 11 on the rod, which engages with a contact arm 10. The Specification as open to inspection under Sect. 91 (3) (a) contains a definite statement that the current may be on only for a portion of the rest period. This statement does not appear in the Specification as accepted.
Patent GB-571698-A (GB)
Title: Writing instrument
IPC: B43K7/00
Filed: 1943-08-18
Abstract: 571,698. Fountain pens. BIRO, L. J. Aug. 18, 1943, No. 13406. [Class 146 (iii)] In fountain pens of the kind having a writing-. element in the form of a ball, the reservoir is constituted by one or more coil-shaped conduits, which extend between the feed-channel for the ball and an air-intake at the opposite end of the pen. A continuous vein or thread of ink is thereby provided, which is not broken when the pen is inverted. The coil may be formed by a body 7, Fig. 1, which is contained within the barrel 8 of the pen and is formed on its outer surface with a screw-thread, so as to provide a helical channel 5, in which the ink is contained. Alternatively, a helical groove may be formed in the inner surface of the barrel, in which a plain cylindrical body is contained. In another form, the reservoir consists of a helical tube 5, Fig. 3, which is contained in the barrel and extends from the air-inlet to the writing-ball 1. A helicallygrooved body 7, Fig. 8, may be contained within a removable ink chamber 10, which is detachably held within the barrel 8 by screwthreaded parts 4<1>, 10<1>.
Patent GB-292746-A (GB)
Title: Improvements in covers for the close annealing of sheets and bars of metal
IPC: C21D9/00
Filed: 1927-05-19
Abstract: 292,746. De Bergue & Co., Ltd., Jackson, A. H., and Carter, E. R. May 19, 1927. Annealing-boxes.-In an annealing cover of the type comprising side plates A and curved or arched roofs B, a stiffening or strengthening plate D is inserted between the ends of the roof sections B, being secured in position to the sections B by rivets d and to the plates A by angle-irons. d<1> riveted or welded thereto. A curved stiffening plate E may be secured to the underside of the roof sections B and may be disposed longitudinally or transversely to the said sections. The section B may be curved or arched longitudinally or transversely or into two directions giving a dished or domed formation.
Patent GB-1534992-A (GB)
Title: Muting arrangement for am synchronous detector comprising a pll
IPC: H03G3/34
Filed: 1977-03-30
Abstract: 1534992 Muting circuits SANSUI ELECTRIC CO Ltd 30 March 1977 [31 March 1976] 13470/77 Heading H3Q In a muting circuit for an AM synchronous detector 13 with a PLL 11, a muting device 15 mutes the output from a synchronous detector 13 immediately the output level of the detector falls below a reference potential ES1 determined by a comparator 16 and maintains the muting action for a predetermined time when the detector output level again exceeds the reference potential. The muting device 15 is opened when the PLL 11 is not locked to the AM input signal so that a bent component produced at the detector output X o  (A, Fig. 2, not shown) is not passed to the output. When the detector output rises above the reference potential the output V 1  of the comparator 16 changes and a capacitor 17 begins to charge. When the voltage V 2  across the capacitor C2 reaches the reference potential ES2 of a voltage comparator 18  its output V 3  changes to allow the detector output X o  to pass via the device 15. A monostable (19, Fig. 3, not shown) and a gate 20 can be added to ensure that the device 15 is only closed in response to return of the detector output signal level above the reference potential for the delay time of the monostable. A retriggerable monostable (22, Fig. 5, not shown) and a gate (23) may replace the sawtooth generator 16 and comparator 18 so that the device 15 is similarly controlled.
Patent GB-1014181-A (GB)
Title: A method of constructing arrays of thin film toroids
Inventor: SIMPSON ANTHONY WILLIAM
IPC: H01F41/14
Filed: 1961-04-14
Abstract: 1,014,181. Magnetic structures. PLESSEY CO. Ltd. March 15, 1962 [April 14, 1961], No. 13471/61. Heading H1H. [Also in Division H3] Thin film magnetic storage toroids in permanent spacial arrangement are formed in an apertured sheet 1 of insulating material by coating at least the walls 2 of the holes with the magnetic material 3 and subsequently removing all the magnetic material except for that coated on the walls of the holes. The insulating sheet 1 may comprise glass, paper, fibre glass or fabric reinforced by synthetic resin and may be shaped by heating to meet design requirements. The magnetic material may be deposited by spluttering a ferrite film or may be evaporated or chemically deposited from solutions.
Patent GB-134813-A (GB)
IPC: B24B41/04
Abstract: 134,813. Hansen, E. A. Nov. 7, 1918, [Convention date]. Disk apparatus; driving-devices.-In a grinding- machine, means are provided for allowing the grinding-wheel to yield under too heavy pressure on the work and automatically to centre itself if out of balance, and also for limiting the torque transmitted to the wheel. The grinding-wheel 14 is mounted on a shaft 7 supported at one end by a sleeve 15 mounted on four bolts 17 having springs 18 between the casing 16 and nuts 19; the other end of the shaft has a friction clutch thereon formed by the engagement of a hemi-spherical head 8 on the shaft with a hemi-spherical seating in the end 6 of the driving-shaft 2. The pressure between the head and the seating is regulated by a screw cap 12, between which and the head is located a spring 9; the end 6 of the driving-shaft has a cavity 5 therein adapted to be filled with lubricating-grease. The spherical form of the clutch allows of a certain amount of play of the shaft.
Patent GB-134999-A (GB)
IPC: F02B3/00
Abstract: 134,999. Elworthy, R. P. Dec. 7, 1918. Heating charge.-Air from the end f of the cylinder or the crank chamber is heated before entering the combustion chamber in a multitubular heater l, through the tubes q of which exhaust from the port k passes. The air enters the cylinder through the ports i, h. The heater also serves as an exhaust-silencer
Patent GB-135010-A (GB)
IPC: F16D3/62
Abstract: 135,010. Pettitt, S. E., Lawrence, F. J., and Brassington, A. E. Dec. 17, 1918, Universal complings; flexible shafts.-4 flexible coupling applicable to flexible shafts comprises radial arms on the shaft ends connected together by helical springs. In the form shown, arms 2 on the shafts 1, 1<a>, are connected by springs 3 on both sides of the arms. The springs may be placed on one side of the arms only or in a medial plane. More than two arms may be carried by each shaft, and they may be on sleeves slidable in the shafts. The springs may be free from strain when the shafts are at rest; and the ends of the shafts may be joined by conical or ball-and-socket connexions, or by a loose stud. fitting in sockets. The arms may be provided with stops to continue the drive when the springs fail. A wire, rod, or stranded cable may run through the whole of a flexible shaft in which the joints are used.
Patent GB-1120485-A (GB)
Title: Vanity cases and the like
Inventor: MACK HAROLD
IPC: A45C5/00
Filed: 1966-03-28
Abstract: 1,120,485. Handbags. PRINCELET HANDBAGS Ltd. 13 Sept., 1966 [28 March, 1966], No. 13512/66. Heading A4G. [Also in Division B8] A vanity case, handbag &c. has walls 1, 6 made at least partly of plastics sheet material 4, 8, 9 joined along an edge by a flap 12 comprising plastics layers 8, 9 of one wall 6, the flap overlapping and being stitched at 16 to the edge of wall 1, and piping 13 being sandwiched therebetween to protect edge 10 of the flap 12. The walls shown include stiff members 2, 7 of cardboard, fibreboard &c. and a layer 5 of plastics foam.
Patent GB-991411-A (GB)
Title: Improvements in or relating to essential oils
Inventor: PETLEY PHILIP THEODORE
IPC: B01J19/08
Filed: 1961-04-14
Abstract: The natural properties of such essential oil derivatives as geraniol, linalool, vetiverol, menthol, linalyl acetate, citral, C7-aldehyde and, to a lesser extent, eugenol are improved without any undesired accompanying degradation by subjection to 0.5-10 megarads of electron or g -radiation having a mean energy of at least 1 MeV.ALSO:The natural properties of essential oils and absolutes, concretes, and resinoids obtained therefrom are improved without any accompanying degradation by subjecting the oils to 0.5-10 megarads of electron or g -radiation having a mean energy of at least 1 MeV.  In particular, peppermint oil which has previously been rectified is improved by 0.5-1.5 megarads of such radiation which is suitably applied at a rate of about 40 megarads/hr. to air-cooled samples of oil when high energy electrons are used, and at a rate of less than 1 megarad/hr. to deaerated samples of oil when g -rays from a cobalt-60 source are employed.  Citrus oil may also be preserved from sponteneous decomposition or resinification by a dose of 1-3 megarads. Many other named essential oils and derivatives thereof, including limonene from orange and lemon oil, are also improved by such treatment.