baber/WOPTO huggingface dataset:
Patent GB-814226-A (GB)
Title: An improved process for the preparation of ª‰-ionone
Inventor: KRISHNA HOLLA JANARDHAN VENKAT
IPC: C07C403/00
Filed: 1957-03-18
Abstract: b -Ionone is prepared by cyclising pseudoionone with acidic reagents at a temperature below 15 DEG  C. and with stirring of the reaction mixture after the addition of the cyclising agent, the temperature of the reaction mixture being kept below 15 DEG  C. until all the b -ionone is removed.  In examples pseudoionone is added with stirring to a mixture of concentrated sulphuric acid and glacial acetic acid at 10-15 DEG  C. stirred for 5-10 minutes at 10-15 DEG  C. and then poured into broken ice and extracted with ether or benzene, the b -ionone being extracted in the solvent layer and purified by steam distillation.
Patent GB-576156-A (GB)
Title: An improved process for the alkylation of olefins with isoparaffins
IPC: C07C2/62
Filed: 1942-06-26
Abstract: Saturated hydrocarbons suitable for use as motor fuels are prepared by passing tertiary hydrocarbons, olefins, and an alkylating catalyst into the bottom of a reaction zone which is maintained under alkylating conditions, withdrawing from the top of the reaction zone a stream comprising alkylated products which are recovered, e.g. by distillation, withdrawing from an intermediate point in the reaction zone a stream comprising hydrocarbons and alkylating catalysts, and recycling the latter stream to the bottom of the reaction zone along with fresh feed. The catalyst may be sulphuric acid, a halogenated sulphuric acid, an acid of phosphorus, an aqueous solution of boron fluoride, a metal halide, an activated clay, &c.  The acid withdrawn from the top of the reaction zone along with the alkylated products may be recycled to the bottom of the reaction zone.
Patent GB-580070-A (GB)
Title: Improvements relating to foam-stabilising materials and to the production of foam therefrom
IPC: A62D1/02
Filed: 1944-05-09
Abstract: 580,070. Making foam. PYRENE.CO., Ltd. May 9, 1944, No. 8823. [Class 47 (ii)] A foam-stabilizer for producing a fireextinguishing foam with hard water comprises at least one sulphonated organic foaming agent and at least one water-soluble salt of an organic polycarboxylic acid containing at least three carboxyl groups. Examples of foaming agents are sodium, magnesium or ethanolamine lauryl sulphate, sodium stearyl sulphate, sodium or calcium oleyl sulphate, sodium octyl sulphate and ethanolamine myristal sulphate. Examples of salts are triethanolamine, ethylene diamine and amylamine acetyl citrates and the salts of aconitic, tricarballylic and mellitic acids. The foaming agents may include various metallic derivatives.
Patent GB-1078051-A (GB)
Title: Improvements in and relating to electric switches
Inventor: BAGGARLEY ANTHONY JOSEPH
IPC: H01H35/34
Filed: 1963-03-06
Abstract: 1,078,051. Fluid actuation of switches. M.B. METALS Ltd. June 3, 1964 [March 6, 1963], No. 8914/63. Heading H2B. A switch comprises a chamber which is closed by two diaphragms 14, 33, the diaphragm 14 being subjected on its underside to a source of fluid pressure and the diaphragm 33 being subjected on its top-side to atmospheric pressure. A spindle assembly 20 joins the two diaphragms and a stack 19 of Belleville spring washers oppose the movement of diaphragm 14. Two switch arms 48, 48<SP>1</SP> within the chamber closed by the diaphragms are pivoted on a shaft 47 and carry movable contacts, e.g. 51, which co-operate with adjustable fixed contacts, e.g. 52. The switch arms each have an aperture 50 therein through which the spindle 20 passes and are biased by springs e.g. 54 against an adjustable abutment 55 on spindle 20 whereby contacts 51, 52 engage only when the fluid pressure acting on the underside of diaphragm 14 sufficiently raises spindle 20. Leads 56 pass from the switch contacts to an exterior plug connector.
Patent GB-364443-A (GB)
Title: Improvements in or relating to toys
IPC: A63H33/26
Filed: 1931-03-24
Abstract: 364,443. Toys. LEHMANN, E. P., 6, Plauerstrasse, Brandenberg-on-Havel, Germany. March 24, 1931, No. 9009. Convention date, March 27, 1930. [Class 132 (iii).] One or more light articles 4 formed of celluloid or similar material are supported on a surface 3 and are manipulated by a magnet 5 adapted to be moved below the surface, the underside of each article having a magnetic metallic coating 4a so shaped that the article oscillates or rotates as it is moved by the magnet. The magnetic coating is convex and may be either circular or oval in plan. The magnet may be concealed within a wooden handle 6.
Patent GB-1040938-A (GB)
Title: Improvements in tanks e.g. for internal combustion engines
IPC: B60K15/00
Filed: 1963-03-07
Abstract: 1,040,938. Oil tanks. AUTO UNION G.m.b.H. March 7, 1963 [March 8, 1962], No. 9101/63. Heading B7H. [Also in Division B8] An oil tank for an internal combustion engine has a filling inlet 6 open at its lower end and having one or more relatively larger vent holes 13 below the normal level of oil in the tank, one or more relatively smaller vent holes 12 being formed at the normal level. When oil filled into the tank rises above the level of the hole 13 vented air can no longer escape freely up the inlet 6, the consequent pressure in the tank causing a rapid rise of oil within the inlet. This indication is so arranged that the oil in the inlet, on pouring being stopped, will subside to the normal full level in the tank. A bridge 11 connects the inlet to the tank wall. Overflowing oil escapes through a hole 10 into a channel 7.
Patent GB-609908-A (GB)
Title: Improvements in towing devices for road vehicles
IPC: B60D1/40
Filed: 1946-03-25
Abstract: 609,908. Couplings for road vehicles. JACKSON & SONS (WELDING ENGINEERS), Ltd., I., JACKSON, I., JACKSON, T. Y., JACKSON, A. P., and JACKSON, J. G. March 25, 1946, No. 9138. [Class 103 (v)] In a towing device of the type in which fittings on the tractor and trailer vehicles respectively are adapted to be coupled together by a pin passed through co-operating eyes on the two fittings, the fitting on the tractor comprises two eyes 10 upstanding from a plate 9 rotatable about a vertical axis on a ballbearing 6, 7 mounted on a plate 5 bolted to the tractor. The fitting on the trailer comprises an eye 19 adapted to be secured between the eyes 10 by means of a pin and mounted on a tow-bar 18 sliding in a tube 16 under the constraint of two springs 21, 22. The tube 16 is welded to the flanges of a plate 14 of channel section in side elevation which is bolted to the trailer. The rear end of the rod 18 passes through the casing 16 to operate a brake lever and may be restrained from applying the brake by a yoke 25 engageable with a collar 24 on the rod 18 when the arm 26 connecting it by a wing nut 28 to a member 27 is lowered in a slot in the latter member.
Patent GB-211367-A (GB)
Title: Improvements in or relating to swills or herring baskets
IPC: B65D81/34
Filed: 1923-04-03
Abstract: 211,367. Knights, W. R., and Yarmouth Stores, Ltd. April 3, 1923. Baskets. - To strengthen a swill or herring basket at the junction of the. bows to the bale, the under-bow is made to extend right across the bale 2, being exactly similar to the upper bow 1; both bows are fastened to the 'bale by the ties 8.
Patent GB-375399-A (GB)
Title: Process for the purification of cellulose benzyl ether, and products obtained thereby
IPC: C08B11/22
Filed: 1931-03-25
Abstract: Benzyl cellulose, such as the crude benzylated cellulose mass, is purified by extraction with an organic solvent having no coagulating action and little or no swelling action on benzyl cellulose, with or without a previous washing with water.  As the organic solvent, a mixture of aliphatic and aromatic hydrocarbons is preferred, for example, a mixture of one or more of benzene, toluene, and xylene with one or more of the lower boiling members of the paraffin series, such as ligroin, petroleum ether, white spirits, light paraffin oil, and petrol.  Naturally-occurring hydrocarbons containing both aliphatic and aromatic hydrocarbons may be employed.  In examples, the following solvents are used, (1) toluene and petroleum ether, (2) low-boiling paraffins and benzene.  Washing with water follows in each case.  Specifications 265,491, [Class 2 (ii), Cellulose &c], and 364,142 are referred to.
Patent GB-212437-A (GB)
Title: Improvements in or relating to vehicle tires
IPC: B29D30/02
Filed: 1923-04-04
Abstract: 212,437. Wade, H., (O. & W. Co.). 'April 4, 1923. Moulding wheel tyres.-Fig. 1 shows a mould for preliminarily shaping and partially vulcanizing the tyre shown in Fig. 3. This mould comprises a continuous central core 1, spacing-rings 3, and segmental cores 2 against which the outer profiled rings 4 are secured by bolts 16, these elements being mounted on a ring 15. Outer mould members 5 are formed with centering keys 17, 18 to enter grooves in the ring 15, and with heating cavities 19 for effecting a partial vulcanization of the tread portion of the tyre. The tread-forming cores 6 are secured by threaded studs 6<a> engaging staggered slots in the meeting edges of the members 5. After removal from the mould, wire rings E are fitted in the spaces F and the tyre is moulded to final shape and vulcanized in the mould shown in Fig. 2, the walls A, B becoming permanently, united along the surfaces D. Collapse of the walls during this stage is prevented by means of capsules of gasforming substance introduced into the chambers F. The pressure thus set up is relieved by venting through apertures which are normally closed by screw-plugs 47. In building up the tyre, the uncured rubber is preferably wound into bands of the required width and thickness which are then twisted into flat form and worked into the spaces between the core and mould elements.
Patent GB-977234-A (GB)
Title: Improvements in and relating to the production of printing blocks and plates
IPC: G03F5/24
Filed: 1963-03-08
Abstract: 977,234. Photomechanical printing processes. J. B. CROSSLAND. May 14,1963 [March 8, 1963], No. 9388/63. Heading G2M. A method of producing printing blocks or plates comprises making a photographic negative on orthochromatic film, accentuating the dark portions of the subject, and a photographic negative in the form of a multiplicity of dots of varying size, accentuating the higher portions of the subject, preparing positives on a transparent base from each of these negatives, combining the positives and preparing therefrom a photographic negative from which is prepared in known manner, a printing block or plate. The photographic negative accentuating the lighter portions may be made through a screen.
Patent GB-936565-A (GB)
Title: Can carrier clips
Inventor: POUPITCH OUGLJESA JULES
IPC: B65D67/02
Filed: 1962-03-12
Abstract: 936,565. Can carriers. ILLINOIS TOOL WORKS Inc. March 12, 1962, No. 9406/62. Classes 94(1) and 133. A clip 10 for securing together cans with beaded rims comprises in one embodiment a metal polygonal, e.g. triangular, plate 18 at each edge of which are tabs 26, 28 to engage beneath a can rim, and a tab 30 to engage over and inside said rim. Each edge of the plate is arcuate to conform with the contours of the can, and a central hole 44 may receive means to carry the assembly. The clip is formed so that sufficient space is provided for the clip and cans to be initially loosely assembled, after which pressure is applied to the tabs 30 to interlock the tabs and rims securely together. Alternatively, a single tab may be provided on each edge to engage beneath, and two to engage over and inside, a can rim.
Patent GB-1098818-A (GB)
Title: Bonding fluorocarbon polymers to epoxy adhesives
Inventor: SCHONHORN HAROLD
IPC: C08J5/12
Filed: 1965-03-05
Abstract: A fluorocarbon polymer selected from (a) homopolymers of trifluorochloroethylene, (b) copolymers of trifluorochloroethylene with vinylidene fluoride, and (c) terpolymers of trifluorochloroethylene, vinylidene fluoride and tetrafluoroethylene, is sealed to an epoxy adhesive by positioning the epoxy adhesive adjacent the fluorocarbon polymer and maintaining the resultant assembly at a temperature within the range 20 to 220 DEG C for 1/2 to 24 hours.  The epoxy adhesive may evidence a surface tension less than 35 dynes/cm. The epoxy adhesive may comprise a mixture of the diglycidyl ether of bisphenol A and diethylaminopropylamine.  As described the epoxy resin is ated on a sheet of fluorocarbon Illegible Data polymer.
Patent GB-857146-A (GB)
Title: Improvements in or relating to the manufacture of porous and non-porous films and sheet materials
Inventor: WEBB WALTER WESTON
IPC: B29C67/20
Filed: 1957-03-22
Abstract: Self-supporting sheets or films of synthetic polymeric or resinous material are continuously made from irregularly shaped non-spherical unlubricated particles or granular vinyl or acrylic polymers or copolymers, or of urea - phenol - or melamine - formaldehyde resins, having a particle size not greater than that giving a total surface area of 600 sq. cm. per gram, by compacting the particles between rotating rolls at a temperature sufficiently below the fusion temperature of the polymer or resin to enable it to form a compacted and continuous but porous sheet while at the same time removing static electricity generated by the passage of the polymer or resin particles through the rolls by conventional means or by the inclusion in the polymer or resin particles of a minor proportion of an anionic and/or cationic ion exchange synthetic resin also in powder form, and then transferring the compacted and continuous porous sheet on a carrier through a heated zone where it is heated to impart strength to it.  During its passage through this zone the sheet may be brought to a temperature only sufficient to sinter it, so that it largely retains its porosity, or it may be brought to a temperature sufficiently high to fuse the polymer particles together, so that the sheet is no longer porous.  The non-porous sheet may be further treated by rolling, pressing, embossing or stretching.  In an example, a vinyl chloride/vinyl acetate copolymer in particulate form having a surface area of about 900 sq. cm./gm is continuously fed from a hopper into the nip between the work rolls of a six-high cluster mill to give a sheet 0,0246 in. thick and having a density of 0,906 gm/c.c.  The sheet is led over a metal guide shoot to an endless carrier belt travelling at 15 ft. per minute.  Static electricity on the sheet is removed by steam jets in the vicinity of the take-off from the mill.  The sheet is then transferred to an endless steel conveyer belt faced with polytetrafluoroethylene also travelling at 15 ft. per minute through an oven in which air is circulated at 145 DEG C.  The process is suitable for making sheets and films of hard polymers, and the products may be used in the filtration or purification of liquids and as separators in electrical storage batteries.
Patent GB-1096171-A (GB)
Title: Sealing device for containers
IPC: B65D43/02
Filed: 1965-03-05
Abstract: 1,096,171. Container closures. W. BRANDL. March 5, 1965 [March 10, 1964], No. 9489/65. Heading B8T. A container closure comprises a rubber, plastics &c. sealing ring (2), which is secured around the container opening so that when a cover (4) is pressed into the opening, .a downwardly projecting inner rim (21) of the sealing ring engages a projection (5) on the cover to form a vacuum or pressure tight seal. The cover is disengaged from the sealing ring by upwardly pulling a handle (6). In a modification the handle is replaced by a lever (12), one end (13) of which passes through an aperture (10) in the cover to engage the sealing ring. Rotation of the lever about its pivot (11) causes the lever to disengage the cover -from the sealing ring. Alternatively, the lever may be replaced by a pin (16) attached to the cover and having a rotatable handle (18) on which a cam (17) is formed. Rotation of the handle causes the cam to engage a projection (17) on the container so that the cover is lifted. The projection on the cover is interrupted at (7<SP>1</SP>) below the pin to assist the removal qf the cover. The sealing ring may have a triangular or trapezoidal cross-section.
Patent GB-1096358-A (GB)
Title: Polyethers and their use as hydraulic fluids
Inventor: NANKEE ROBERT JAMES
IPC: C07C43/02
Filed: 1965-03-05
Abstract: Hydraulic fluids comprise compounds having the average formula R(OCmH2m)x-(OCnH2n)y -(OCpH2p)z-OH wherein R is a primary C1- 4 alkyl radical, m, n and p are integers from 2-4 (at least one being 2) and n being different from both m and p, x and y are 1-5, z is 0-3, x + y + z being 4 to 8, and at least 50% of the oxyalkylene groups being oxyethylene groups in combination with a compatible corrosion inhibitor, for example borate salts and esters, nitrate salts or mercaptobenzothiazole, and a compatible antioxidant such as bisphenol A, dialkyl phenols and aromatic amines.  The compositions may be used in combination with other conventional non-aqueous brake fluid components such as glycols, diglycols, and polyglycols and the simple ethers and esters of such glycols.ALSO:The invention comprises compounds having the average formula <FORM:1096358/C2/1> wherein R is a primary C1- 4 alkyl radical, m, n and p are from 2 to 4, n being different from both m and p and at least one of them being 2 and x and y are 1 to 5, z is 0 to 3, x + y + z being 4 to 8, and at least 50% of the oxyalkylene groups being oxyethylene groups.  The compounds are prepared by condensing a lower alkanol with an alkylene oxide by use of an oxyalkylation catalyst, for example sodium hydroxide, until 1-5 moles of oxide have reacted, then, continuing the oxyalkylation with a second alkylene oxide until 1-5 moles of oxide have reacted and, optionally, continuing the oxyalkylation with an alkylene oxide, which is different from the second oxide. Unreacted oxide is removed by devolatilization. It is advantageous in certain cases, to fractionate at least partially, the specific ethers produced. Comparative experiments are carried out using the same reagents as above but in amounts giving products outside the scope of the above general formula.
Patent GB-615502-A (GB)
Title: Method of and means for the production of filter-tip cigarettes
IPC: A24C5/52
Filed: 1947-04-10
Abstract: 615,502. Cigarette-making machines. ELLIS, L. S. E. (Policansky, H.). April 10, 1947. No. 9616. Addition to 615,435. [Class 130] In the arrangement for inserting filter plugs in a tobacco rope described in the parent Specification in which the rope is severed by reciprocating knives 3 which push the severed portions 34a on to a wheel 19 and plugs 36 are pushed by retractable pins 20 on to their rear, further retractable pins A keep the portions moving steadily while the knives are being withdrawn. The pins A are operated mechanically and withdrawn after the leading end of the portion 34a, engaged by a pin, is on the slower moving paper web 39.
Patent GB-1061887-A (GB)
Title: Elastic melt extruder and method of extrusion
IPC: B29C48/47
Filed: 1964-03-06
Abstract: 1,061,887. Centripetal melt extruders. OWENS-ILLINOIS Inc. March 6,1964 [March 6, 1963], No. 9682/64. Heading B5A. In an elastic melt centripetal extruder driven via a shaft (25), Fig. 1 (not shown), and interconnecting spider (22), a rotor (20), and a stator (31) are separated by a plate (30) having a cut-out which provides a channel portion 43, Fig. 2, communicating with a feed hopper 44, and a spiroidal portion 48, 40, 49. As shown, material from hopper 44 is fed substantially tangentially into the spiroidal portion where it is plasticized by the shearing action of rotor 20, the spiroidal shape, particularly as at 49, causing partially plasticized material to be stripped from the rotor to prevent clogging of channel portion 43. The rotor 20 is heated by conduction from an electrical heater (50), Fig. 1 (not shown), and the plasticized material moves centripetally to be extruded through nozzle (34) via tube (33).
Patent GB-1520582-A (GB)
Title: Daylight projection screens
IPC: G03B21/60
Filed: 1976-03-11
Abstract: 1520582 Projection screens AGFA-GEVAERT AG 11 March 1976 [15 March 1975] 09783/76 Heading G2X In the manufacture of a lenticular daylight projection screen having a diaphragm matrix in the focal plane of the lens matrix, a laser beam 1 falls on a lenticular screen 4 with a backing layer 6 absorbent of the radiation, so that the radiation is focused by the lenticulated screen 4 on to layer 6, and the heat generated therein causes the required apertures to be formed. Screen 4 with special lens elements 4a and an opposite matt surface has a collodion layer 5 and a black lacquer layer 6. Laser beam 1 is reflected by a mirror 2 which is movable so that the beam passes over all the lens elements 4a in turn. At each focal point 7 heat is generated which suddenly vaporizes the collodion, and this blows away part of layer 6 to form an aperture. The resulting screen has an image projected thereon from the side of the lens elements 4a, and is viewed from the other side. Layer 6 may also comprise pigments, synthetic resins amorphous metals and metal compounds, and agglomerations of one or more of these substances in the form of flakes, granules or bristles, applied in various ways. The layer 5 consists of an easily vaporized material such as alkyl acids and peroxides.
Patent GB-735367-A (GB)
Title: Folding camping shelter
IPC: E04H15/06
Filed: 1953-04-10
Abstract: 735,367. Collapsible huts. BRINCK, E. J. M. April 10, 1953 [April 10, 1952], No. 9818/53. Class 20 (1). A folding camp shelter comprises light-weight plates hinged to one another and to a substantially rectangular frame which surrounds the plates to form a box-like structure when the shelter is collapsed, the frame having guide means adapted to be connected to corresponding guide means on a car roof so that the shelter, when collapsed may be pivoted on to the car roof. As shown, frame 3 has a bottom plate 16 forming the front end wall and a cover-plate 4 which forms the shelter floor. Frame 3 comtains plates 19, 20 which form the roof and outside wall respectively, a plate 21 which forms part of one side wall, completed by a preferably transparent plate 22, and a plate 23 which, with a sliding door 25 or curtains, forms the other side wall. A pair of guides 5 are secured to the car roof and carry telescopic guides 9, 10, guides 10 being connected by a rod 13 on which frame 3 is held by hooks or pins 14. In a modification, Fig. 6 (not shown), the plates may be arranged to unfold from either side of the frame. In a further modification, Fig. 7 (not shown), the frame has rollers along its transverse edges which are guided in transversely extending runways secured to the car roof so that the frame can be drawn out sideways from the car roof.