baber/WOPTO huggingface dataset:
Patent GB-470117-A (GB)
Title: Improvements in bottle stoppers
IPC: B65D47/40
Filed: 1936-03-20
Abstract: 470,117. Stoppers for bottles. LA ROCHE, P. F. March 20, 1936, No. 8327. [Class 125 (iii)] A stopper for a bottle &c. has helically set blades 5 which wipe away the residue from the neck of the bottle 4 when the stopper is rotated, giving the drips an upward movement into a clearance space at the top thereof. The blades may form part of a screw-thread of long pitch, and may present an acute angle to a radial plane. The blades may be stepped at 5B to clean the top of the neck, and may taper towards their lower ends 5<A>. They may be of slightly yielding material such as rubber, while the cap may be formed of sheet-metal or synthetic resin.
Patent GB-1156299-A (GB)
Title: Improvements in and relating to apparatus for Setting Cutters for Milling Cutter Heads
Inventor: SVERAK ANTONIN
IPC: A47H13/14
Filed: 1966-05-06
Abstract: 1,156,299. Ganging cutters. TOS KURIM, NARODNI PODNIK. 6 May, 1966, No. 8374/68. Divided out of 20042/66. Heading B3K. Apparatus 1 for setting roughing and finishing cutters within cutter holders 18 to be mounted, after setting, on a milling cutter head, comprises support means 15 for locating an assembly of a roughing cutter or a finishing cutter together with a cutter holder on the apparatus, first gauge means 11 for setting up the required angle of inclination of the main cutting edge of a roughing cutter and for setting up the required radial projection of the tip of the roughing cutter from the cutter holder, and second gauge means 5 for setting up the required axial projection of the tip of the roughing cutter from the cutter holder, and for setting up the required angle of inclination of the side cutting edge of a finishing cutter so that it will, on assembly of the cutter holder within a milling cutter head, lie parallel to a side face of the milling cutter head and for setting up the required axial projection of the side cutting edge of the finishing cutter from a cutter holder. In a milling cutter each blade-holder 18 is positioned by an axial seating 19 and a radial flange 20. The blade 23 is secured in the holder by screws 29, 30, 31, 32 which also serve to adjust the blade in the jig 1. The jig has a slide carrying a roller 6 and the dial gauge 5 to set the projection of the cutter and an angularlyadjustable slide 10 carrying a roller and the dial gauge 11 to set the cutting angle of the blade after having been set, itself, by use of a master cutter. Screws 22, 26 clamp the holder in the jig. The holder may have an additional radial flange 44, Fig. 3, and may then not have the flange 20. A bridge wedge 35 carries screws 36, 37 to secure the holder in the cutter and springs 38 to retain the wedge in place. The cutter is positioned laterally by flanges 40, 41. The cutter is inscribed with numbers to enable roughing, end and finishing blades to be identified. Two rows of blades may be fitted.
Patent GB-342193-A (GB)
Title: A combination drafting appliance for use with blackboards
IPC: B43L7/12
Filed: 1930-03-15
Abstract: 342,193. Drawing-instruments. MILLAR, J. C., Lancasterian House, Lancasterian Street, Carrickfergus, Ireland. March 15, 1930, No. 8391. [Class 97 (iii).] An instrument intended to be used on a blackboard in conjunction with a tee-square comprises a rigid right-angled member 1 having pivoted at the extremity of one of its limbs 2 a graduated straight arm 7 serving as a ruler. A graduated protractor segment 10 is secured to the arm 7, passes through a slot in the limb 2, and is itself slotted to receive a clamping-screw 14. When folded the arm 7 fits into the corner 8 of the right-angled member 1.
Patent GB-1040104-A (GB)
Title: Apparatus for the treatment of railway track ballast beds
IPC: E01B27/13
Filed: 1964-02-28
Abstract: 1,040,104. Ballast packing machines. F. PLASSER, [trading as FRANZ PLASSER BAHNBAUMASCHINEN]. Feb. 28, 1964 [March 1, 1963], No. 8391/64. Heading E1G. Ballast is moved from the centre of the track to the vicinity of the rail supports, where it is compacted by vibrators 5 on each side of the rail and of the sleeper, by flail-type conveyers comprising flexible tubes 19 rotating on longitudinal shafts 18. A further conveyer of the same type 23 moves surplus ballast from the top of the sleepers. The two conveyers are carried by a subframe 12, pivoted to the main frame 1 at 13 and adjustable for height by a screw 17. The four vibrators 5 surrounding each rail support are vertically adjustable in a main frame 2.
Patent GB-577897-A (GB)
Title: Improvements in or relating to mechanism for releasing loads from aircraft
IPC: B64D1/04
Filed: 1942-06-18
Abstract: 577,897. Bomb - dropping &c. CONNELL, F. T. June 18, 1942, No. 8392. [Class 9 (ii)] An electrical release-gear for aerial bombs or loads, comprises load-release circuits, selector switches for the release circuits, a master switch for the selector switches and a pre-selector switchgear interposed between the selector switches and the release apparatus, whereby the order of release may be varied. The preselector switch comprises a shaft 22 in a casing 20, rotatable discs 24 with radial spring- pressed brushes 29 and metal contacts 28, sector-shaped contacts 30 interposed between the discs, metal contact-bars 23 disposed in the form of a cage about the discs and two series of fixed contacts 31, 32, one on each side of the casing. The contacts 31 are connected to the selector switches and to the sectorshaped contacts between the discs, while the contacts 32 are connected to the bars 23 and to the load-releasing means. Numbers are placed around the peripheries of the discs and a sighting aperture 27 is provided in the casing, and for selection, the discs are rotated on the shaft so that the brushes therein contact with the various contact-bars, the numbers shown on the discs indicating the bomb position selected for each selector switch.
Patent GB-842140-A (GB)
Title: Jet and rocket fuels and preparation thereof
IPC: C10G69/06
Filed: 1959-03-11
Abstract: The hydrogenation of the dimers of a crude mixture of cyclopentadiene and its methyl and dimethyl derivatives is described.  A hydrocarbon fraction, such as kerosene or gas oil, is steamcracked to produce a mixture from which a fraction boiling in the range 75 DEG  to 350 DEG F. and containing the cyclopentadienes, is separated and subjected to heat-soaking at 175 DEG  to 250 DEG F. to obtain a product containing the dimers of the cyclopentadienes; hydrocarbons containing less than ten carbon atoms are removed and the material is hydrogenated at 75 DEG  to 200 DEG F. and 1-200 atmospheres for 0,25-5 hours to obtain dihydro derivatives, which are further hydrogenated at 225 DEG F. to 450 DEG F. and 30-200 atmospheres for 0,5-10 hours to obtain tetrahydro derivatives.  Suitable catalysts are Raney nickel, platinum, copper chromite, or cobalt molybdate supported on charcoal, magnesia or alumina.  The tetrahydro derivatives are 4, 7-methanooctahydroindene and its methyl and dimethyl homologues.ALSO:A jet fuel contains as its major component the product obtained by hydrogenation of the dimers of a crude mixture of cyclopentadiene and its methyl and dimethyl derivatives.  A hydrocarbon fraction, such as kerosene or gas oil, is steam-cracked to produce a mixture from which a fraction boiling in the range 75 DEG  to 350 DEG F. and containing the cyclopentadienes, is separated and subjected to heat-soaking at 175 DEG  to 250 DEG F. to obtain a product containing the dimers of the cyclopentadienes; hydrocarbons containing less than ten carbon atoms are removed and the material is hydrogenated at 75 DEG  to 200 DEG F. to obtain dihydro derivatives, which are further hydrogenated at 225 DEG F. to 450 DEG F. to obtain tetrahydro derivatives.  The tetrahydro derivatives are 4, 7-methano-octahydroindene and its methyl and dimethyl homologues.
Patent GB-477305-A (GB)
Title: Improvements in or relating to time switch control mechanism
IPC: G04F3/02
Filed: 1936-03-20
Abstract: 477,305. Time switches. MARCHANT, HILLS, & CO., Ltd. March 20, 1936, No. 8419. Void. Convention date, Oct. 12, 1935. [Class 38 (v)] A time switch suitable for closing the circuit to a hair-waving apparatus for a predetermined time and in which fluctuations of the voltage of the electrical supply are taken into account, includes a setting dial 30, marked with " coarse," " medium " and other types of hair indications, and adapted to be rotated till the selected indication comes opposite the needle 32 of a voltmeter V, or ammeter or wattmeter. The dial is visible through holes 33a, 33c in a plate 33 and itself has a hole 30a through which the needle 32 is seen. Besides the " hair " indications it is marked in minutes, this portion coming opposite a pointer R and indicating the time of closure of the circuit. The rotation of the dial 30 is effected by a handle 28 moving in a slot in the casing and serves to rotate a spindle 14 and wind up a clock spring 13. At the beginning of the movement a pin 23 fixed to the spindle engages the dolly 27 of a tumbler switch 25 and moves this "on." After the setting has been effected, the clockwork runs down and after a suitable time the pin 23 re-engages the dolly 27 and moves it back again into the " off " position. A ratchet arrangement allows the winding of the clockwork and a friction clutch F is also provided.
Patent GB-931582-A (GB)
Title: Process for the preparation of dimethylhydroxylamine
Filed: 1962-03-05
Abstract: N,N-Dimethyl hydroxylamine is prepared by oxidising dimethylamine with hydrogen peroxide in a liquid reaction medium which dissolves both in the presence of an oxide, oxy acid or alkali metal salt thereof, or selenium, molybdenum, tungsten, vanadium or uranium as catalyst, the preferred solvent being water or a C1 to C4 alkanol or a mixture thereof, acetone, methylethyl ketone and diethyl ketone also being named.  Preferred operation is at -20 DEG  to +20 DEG C. Preferred catalysts are the alkali metal tungstates, molybdates or vanadates, or selenium dioxide, in preferably 1-5% by weight relative to the weight of dimethylamine, although 0.5 to 10% may be used. Hydrogen peroxide of any concentration may be employed, in aqueous or alcoholic solution, even anhydrous, 30% by weight aqueous being preferred, in essentially stoichiometric amount, although excess may be employed.  The product may be recovered as the salt, e.g. by neutralisation and evaporation of water, or use may be made of the solution after filtering of solid catalyst.
Patent GB-228394-A (GB)
Title: Improvements in drying apparatus
IPC: G03D15/02
Filed: 1924-04-03
Abstract: 228,394. Wood, H. S. April 3, 1924. Dryiwg - apparatus. - A frame for supporting photographic films e during drying comprises a standard k or a frame having a fixed member a with hooks c, and an adjustable member i having holes through which wires h supporting weights j pass. Clips d, f are secured to the films, the weights y keeping the films taut. The top member a may be replaced by a tube w which enables the frames to be supported by rods u in a drying-cabinet of the kind described in Specification 194,876, [Class 34, (ii), Drying systems &c.]. A slotted member 1 keeps the frames in a vertical position
Patent GB-264690-A (GB)
Title: Improvements in surgical bandages
IPC: A61F6/04
Filed: 1926-03-29
Abstract: 264,690. Sarason, D. March 29, 1926. Urinary and generative organs, treating; suspensory bandages. - A protective pocket for the male genital organ for use in the treatment of gonorrhea comprises a bag a having a flap c provided with means for attachment to the body or to a suspensory, the outer end being split to allow of urination and provided with an easily manipulated closure. As shown the opening is provided with hinged frames g, h having a snap fastening. An absorptive insertion i having a thinned edge is clamped in position by the frames; it is provided with a protruding tape k for use in removal. The flap c is buttoned to a waist-belt or provided with tapes. The bag a may be pinned or sewn to a suspensory or formed in one piece therewith.
Patent GB-842344-A (GB)
Title: Electrical waveguide junction arrangement
Inventor: SOLYMAR LASZLO
IPC: H01P5/02
Filed: 1959-03-12
Abstract: 842,344. Waveguide matching arrangements. STANDARD TELEPHONES & CABLES Ltd. March 12, 1959, No. 8537/59. Class 40(8). In a high frequency electrical waveguide junction arrangement comprising a first main guide and a transition guide and a second main guide serially coupled in that order, all said guides being linear, said first and second main guides having respective cross-sections which differ slightly in magnitude but which are both sufficiently large to support the propagation of wave energy of given design frequency in a desired low order mode and also in an undesired predetermined high order mode, said transition guide has a cross-section such that the conversion coefficients between said desired mode and said undesired mode at the respective unions of said transition guide with said first and second main guides are substantially equal, and the length of the transition guide is such that the phase shifts undergone by energies of said design frequency propagated therethrough in said desired mode and in said undesired mode respectively differ by substantially # radians. In the case of the circular waveguides shown, comprising a first main guide 1 of a transition guide 2 of radius R and length L, and a second main guide 3 of radius r 2 , with junctions 5 and 6, a small part of input energy propagated in the HO 1  mode in guide 1 is converted to form a first Ho 2  mode component at junction 5. A second Ho 2  mode component is formed at junction 6, but in phase opposition to the first component. Since the conversion coefficients at the junctions 5 and 6 are equal, the two Ho 2  mode components in guide 3 will be of equal amplitude with a vector sum of approximately zero. The two overmoded guides 1 and 3 are thus connected in tandem without giving rise to spurious modes. In the case of circular HO 2  modes, the desired equality of the mode conversion coefficients at the junctions 5 and 6 is obtained when R = #r 1  r 2 . Equations and a graph are given which enable L to be calculated, taking the Ho 3  mode and the frequency band over which operation is desired into consideration.
Patent GB-1387076-A (GB)
Title: Flooring
IPC: E01C7/35
Filed: 1973-02-21
Abstract: 1387076 Coated floors AVON RUBBER CO Ltd 10 Aug 1973 [22 Aug 1972] 39097/72 Heading B2E [Also in Divisions A6 and C3] A flooring for sports and recreation areas is produced by applying on the site to the base surface, which may first be coated with an adhesive composition, a cold-hardening flooring composition containing a polymeric binder and rubber dust which has been coated with resorcinol-formaldehyde resin rubber latex formulation. The flooring composition may be coloured and the top surface may be coated with e.g. a polyurethane coating. Examples are given in which the binder is natural rubber latex and the rubber dust is shredded waste tyre tread. The dust/binder composition may be applied as a slurry.
Patent GB-526492-A (GB)
Title: Improvements in or relating to the recovery of salts from solutions used for gas purification
IPC: C10K1/12
Filed: 1939-03-17
Abstract: 526,492. Ferrocyanides ; thiocyanates. GAS LIGHT & COKE CO., HUTCHISON, W. K., HOPTON, G. U., and DRYDEN, I. G. C. March 17, 1939, No. 8598. [Class 1 (ii)] Spent alkaline liquor from coal gas washing is concentrated to half its bulk and cooled to crystallize potassium ferrocyanide. The mother liquor is further concentrated and potassium carbonate is allowed to crystallize out at about 50‹C. After further concentration if necessary the liquor is cooled to 25‹C. to crystallize potassium thiocyanate and the mother liquor is returned to the process. Before the thiocyanate crystallization the liquor may be treated with carbon dioxide to convert carbonate therein to bicarbonate.
Patent GB-208462-A (GB)
Title: Improvements in or relating to screw propellers
IPC: B63H1/12
Filed: 1923-03-26
Abstract: 208,462. Grilli, A. March 26, 1923. Screw propellers. -Screw propeller blades 12 of the kind which extend 180‹ round the hub 10 are formed with the radial width gradually increasing from the leading edge 13 to a position near the after edge from which position it decreases up to the after edge 14. The pitch is constant at all diameters.
Patent GB-1355405-A (GB)
Title: Heatstable polyimide resins
IPC: C08G73/10
Filed: 1972-02-24
Abstract: 1355405 Laminates RHONE-POULENC SA 24 Feb 1972 [24 Feb 1971] 8655/72 Heading B5N [Also in Division C3] A heat-stable resin comprises recurring units where is a is 0 to 5 ; Y is H, CH 3  or Cl ; G is a monovalent aromatic radical; A is a C 2  or higher divalent organic radical; and the proportion of units wherein a is 0 is such that there are between 4À4 and 20 =D 1 = radicals per =N-N= radical. The resin may also contain units and/or molecules wherein T is a monovalent organic radical; T, is a radical or and b is 0 to 4. They may be prepared by heating at 50 to 350‹ C. one mol of an alazine G-CH=N-N=CH-G with 2À2 to 10 mols of a bis-imide and optionally up to 30 mol per cent related to the bis-imide of a mono-imide A prepolymer may first be formed in bulk or solution at up to 180‹ C. and cured by subsequent heating. In a further embodiment up to 50% (by weight of bis-imide + alazine) of an unsaturated polyester and/or a polymerizable vinyl, maleic, allyl or acrylic monomer containing a -CH=C= group may be heated with the reactants or the prepolymer. Numerous reactants are exemplified and curing may be effected in the presence of polymerization initiators such as lauroyl peroxide or azo-bisisobutyronitrile or diazabicyclooctane. Up to 10 wt. per cent of an aromatic compound containing 2 to 4 benzene rings and boiling above 250‹ C. may be added to the resin to lower the softening point of the prepolymer. The prepolymers may be used as a liquid mass, e.g. for hot casting; cooled and ground to powders, e.g. for compression moulding optionally with powdered, spherical, granular, fibrous or flake fillers; or as suspensions or solutions for coatings or forming pre-pregs by impregnating fibrous materials consisting of aluminium or zirconium silicate or oxide, carbon, graphite, boron, asbestos or glass. Specified uses of the resins are insulation for transformers and printed circuits, gears and self-lubricating bearings. In examples prepolymers are prepared from N,N<SP>1</SP>-4,4<SP>1</SP>-diphenyl methane orether or m-phenylene-bis-maleimide and benzalazene, and in Example 8 additionally N-phenyl maleimide. In Example 6 63 g. of prepolymer are further heated with 7 g. of (i) terphenyl, (ii) allyl phthalate or (iii) an unsaturated polyester of ethylene glycol and chlorendic and maleic acids. The products are cooled and ground and the resulting powder of less than 100 Á moulded alone or after mixture with diazabicyclooctane and 3 mm. glass fibres except in Example 5 where the powder is suspended in water and used to impregnate satin type glass fibre fabric which has been desized and then treated with γ-aminopropyltriethoxy silane. 12 layers of the impregnated and dried fabric are stacked with weft and warp alternating and laminated at 250‹ C. and 40 bars.  Reference is made to Specifications 1,190,718, 1,238,043 and 1,355,406.
Patent GB-549737-A (GB)
Title: A new or improved gauge
IPC: G01B5/24
Filed: 1941-07-09
Abstract: 549,737. Gauging-apparatus. BERRY & CO., Ltd., H., and CORIN, P. G. July 9, 1941, No. 8657. [Class 106 (ii)] A device for checking the inner profile of an elongated hollow element such as a gun-buffer cylinder comprises a single feeler, a support for traversing the feeler along the bore, and clockface dial means for indicating externally of the bore the movement of the feeler. In Fig. 1, a base 1 has four upstanding lugs 2 ... 5. The lugs 2, 3 support a cylindrical bed 6 on which slides a carriage 7 a depending part of which engages a rib 8 to prevent rotation of the carriage. Arms 9 projecting from the carriage support a pivot for a lever 10 overbalanced so as to engage a stop at the rear, a finger-piece 12 being provided to tilt the lever, The plunger 14 of a dial gauge 13 supported on the carriage is adapted to engage a contact pin 15 on the lever. The lugs 4, 5 carry adjustable yokes 16, 20 adapted to support a gun-buffer cylinder, the yoke 20 having two adjustable support points so that the axis of the cylinder box may be aligned with the cylinder 6. The lug 3 supports pivoted stop members 23 for the ends of gun cylinders of different sizes. In use, the carriage is advanced until the feeler 11 on the lever 10 is in the cylinder and engages its inner surface, the dial gauge 13 being then adjusted to read zero. The carriage is further advanced and the axis of the cylinder adjusted until the gauge reads zero in any position of the carriage. The cylinder is now rotated to bring one of the grooves uppermost. As the carriage is now traversed with the feeler in the groove the readings of the depth of the grove along the cylinder length may be checked. The scale 22 is calibrated so that the pointer 21 gives these readings along the length of the cylinder. In a modification, Fig. 3, a stout tube 24 of appreciably less diameter than the bore to be tested is reduced and tapered at the forward end to receive a hard plug 26 which is an easy fit in the bore. When this gauge is inserted in the bore, the tube 24 weights it down so that the front top and rear bottom edges of the plug bind in the bore. The plugs may be interchangeable with others for bores of different sizes. The tube 24 houses a lever 32 pivoted at 33 carrying a feeler 39 at one end and engaging a dial gauge 31 supported on the tube at the other end. A finger-piece 32 may be used to tilt the feeler lever as before. A scale 41 is read against the edge of the cylinder. The movements of the feeler may be indicated electrically or electro-magnetically and an audible indicator could be used, or the movements of the feeler could be recorded.
Patent GB-1220237-A (GB)
Title: Castable polyurethane resin forming combinations
IPC: C08G18/65
Filed: 1968-02-22
Abstract: 1,220,237. Boots &c. MINNESOTA MINING & MFG. CO. 22 Feb., 1968 [23 Feb., 1967], No. 8773/68. Heading A3B. [Also in Divisions B8 and C3] A shoe insert may be prepared by applying to a surface positive of a foot a polyurethane forming composition comprising an organic polyisocyanate, a polyol coreactant, a catalyst mixture comprising a complex formed by reaction of a boron compound with a polyol in the presence of alkali metal ions and a polyol-soluble organic compound of tin, lead or mercury, and as a filler hollow spheroids 10 to 500 microns in diameter in an amount of 15 to 65% by volume of the composition, trowelling the composition to the approximate shape desired, allowing the composition to harden at room temperature to a tack-free state, and shaping the surface to match the contour of the inside of a shoe.