baber/WOPTO huggingface dataset:
Patent GB-723989-A (GB)
Title: Improvements relating to compositions containing organo-polysiloxane resins
IPC: C09D183/04
Filed: 1952-01-25
Abstract: A coating or waterproofing composition comprises a solution in a hydrocarbon or chlorinated hydrocarbon solvent of an organopolysiloxane resin and an alkyl titanate which can be either monomeric or polymeric.  The composition, after removal of solvent, cures at temperatures below 150 DEG  C., e.g. 50-90 DEG  C. or less, depending on the nature and quantity of the alkyl titanate. Rate of curing decreases with increase in length of the alkyl radical.  Large quantities of titanate, e.g. 50 per cent and over, tend to give brittle films.  Preferred R : Si ratios for the resin are below 1.7 and preferred organic substitutents in the resin are phenyl or methyl or both.  The compositions may include pigments, plasticizers such as solid and liquid paraffins and petroleum jelly, fungicides such as pentachlorophenol and metal soaps. Examples: (1) 3 parts of a resin, (R : si ratio 1.6; R 45 per cent phenyl, 55 per cent methyl), was dissolved in 7 parts toluene and various quantities of butyl titanate added.  Test coatings with 0, 10, 20 and 50 per cent butyl titanate were maintained at 25 DEG  C. for 30 minutes and then at 75 DEG  C. for 120 minutes and the coatings examined and compared for hardness; (2)-(6) various fabrics were immersed in toluene solutions containing a few per cent of organo-polysiloxane resin and a few per cent of butyl or a mixture of ethyl and octyl titanates, centrifuged, dried at 75 DEG  C. and tested, by applying a head of water, for waterproofness.  In example (3) the composition also contained 4 per cent solid paraffin, and in example (6) 3 per cent of lithium or aluminium stearate.ALSO:Surfaces are coated with a varnish consisting of a solution in an organic solvent of an organo-polysiloxane resin and an alkyl titanate.  The coating may be allowed to air-dry but for effective curing the coatings are heated e.g. at temperatures up to 150 DEG C., preferably 50-90 DEG C.  In an example glass was coated with four varnishes consisting of a 3 per cent toluene solution of an organo-polysiloxane resin to which 0, 10, 20 and 50 per cent of butyl titanate had been added.  A table is given of the hardness of the various coatings after 30 minutes at 25 DEG C. and after 15, 30, 60, 90 and 120 minutes at 75 DEG C.
Patent GB-1081029-A (GB)
Title: A screw extruder with variable flow restricting means
IPC: B29C48/76
Filed: 1966-01-17
Abstract: An extrusion apparatus has one or more screws each with at least one flow restricting portion comprising a contoured region, the screw and a barrel it is in being axially displaceable with respect to each other to adjust the alignment of the restricting portion with a recessed peripheral groove (4) in the barrel and vary the amount of restriction.  The flow restricting portion may comprise a region of opposite hand thread (7) to the of the screw, kneading plates (8), thread-shaped elements (10) or combinations of these.  The barrel groove may comprise a portion (39) diverging in the direction of flow.  Displacement of the screw and/or barrel varies the amount of restriction.  The barrel has heating or cooling ducts (3) and degassing vents (21).
Patent GB-299028-A (GB)
Title: Improvements in or relating to refrigerating systems and apparatus
IPC: F25D19/02
Filed: 1928-01-23
Abstract: 299,028. Frigidaire Corporation, (Assignees of Hull, H. B.). Oct. 20, 1927, [Convention date]. Driving-arrangements. - The compressor 26 and its electric driving motor 29 of a compression refrigerating machine are mounted upon a frame 64 suspended by springs 63 from aT-shaped standard carried by an angle-iron frame 51 detachably secured to a base 23 carrying the evaporator 24. The motor is pivoted to the frame 64 and stayed bv a rod 88 secured at one end by a holding-down bolt of the compressor and at the other to a lug 86 on the motor casing having a rubber bush 87 to reduce vibration. Bv this arrangement, the tension in the driving-belt 84 of the motor can be adjusted.
Patent GB-194082-A (GB)
Title: Improvements in gramophone tone arms
IPC: G11B3/00
Filed: 1922-01-25
Abstract: 194,082. Tootill, S. Jan. 25, 1922. Tone-arm joints.-In a portable gramophone or the like, in order to make the machine compact the tone-arm is so mounted that it can be lowered when not in use. The mounting comprises a socket c having inclined and horizontal slots or grooves c<1>, c<2> with which engage pivotpins d projecting from a collar b<2> on the tone-arm. The tone-arm is shown in its lowered position, from which it is raised by rotating it,' whereupon the pivots d ride up the inclined slots c<1> into the horizontal slots c<2>. The pivots d may be constituted by the ends of a rod passing diametrically through the tone-arm.
Patent GB-458964-A (GB)
Title: Oil regenerating plant
IPC: C10M175/00
Filed: 1936-01-24
Abstract: <PICT:0458964/III/1> <PICT:0458964/III/2> In a plant for regenerating spent lubricating, transformer, or turbine oils, of the kind comprising a heating and de-watering device and a filtering device, the heating and de-watering device comprises a pipe or pipe coil through which the oil passes, the pipe or coil being provided with perforations at its lower part and having a steam pipe united with its under side so that the steam, conducted in counter current to the oil, penetrates through the perforations into the oil pipe and passes to a condenser carrying along with it any hydrocarbons of lower boiling point contained in the spent oil.  As shown in Fig. 1, the plant comprises a reservoir 1 supplying spent oil through the pipe 2 to a heating coil 5 the upper end of which communicates with a condenser 23, and the lower end of which delivers into a mixer 12 connected by a pump 14 to a filter 15.  The coil 5 is provided on the under side with a coil 6, Figs. 1 and 5, to which steam is supplied by a pipe 8, the part of the coil 5 covered by the coil 6 being provided with perforations 7.  The composite coil 5, 6 may be square in plan view with cleaning holes at the corners, or may be replaced by a straight composite pipe.  The pipe 2 may be provided with a U-shaped section 3 surrounded by a U-shaped section formed in the delivery pipe 11 of the coil 5, whereby the spent oil is preheated. The heating coil, or a bath 9 surrounding it, is controllably heated by gas, electricity or steam.  The condensed light hydrocarbons and steam are delivered from the condenser 23 to a separating vessel 24 provided with overflow pipes 24<b>, 24<c> for hydrocarbons and water respectively, the pipe 24<c> extending to the bottom of the vessel. The vessel is suspended on pivots 25 at one side of its centre and thus tips, to one side or the other, in accordance with the preponderance of hydrocarbon or oil within it.  The treated oil delivered from the heating coil 5 is mixed with a purifying agent, e.g. hydrosilicate of aluminium, in the mixer 12, and is then pumped through the filter 15 which comprises a perforated fitting 16 surrounded by layers 19 of metal gauze covered by a filter cloth or paper 20 or by a layer of fibrous or granulated filtering material deposited from suspension in a liquid.  The gauze layers are elastically deformed by the filtering pressure, but return to their original shape when the pressure ceases, thus loosening the deposited slime.  A battery of filtering devices may be connected to a common delivery pipe leading from the pump.  To facilitate removal and replacement of the filtering fitting 16, a wheeled carriage is provided having a horizontal bar adapted to be brought into engagement with the fitting, whereby, after loosening the bolts 18, the fitting may be removed suspended on the bar.  A drip pan is provided beneath the bar.  The Specification as open to inspection under Sect. 91, comprises also the subject-matter of Specification 23044/36.  This subject-matter does not appear in the Specification as accepted.
Patent GB-535876-A (GB)
Title: Apparatus for machining separate sides of a work piece simultaneously while having means for adjusting the distance between the respective machining elements
IPC: B23C3/00
Filed: 1940-02-07
Abstract: 535,876. Grinding machines. YARROW & CO., Ltd., and STRACHAN, G. Feb. 7, 1940, No. 2347. [Class 60] [Also in Group XXII] In machining simultaneously different parts of a workpiece by milling grinding, drilling or like operations, particularly for serrating opposite sides of turbine blade parts as described in Specification 535,875, [Group XXII], the tool spindles 6, 9 driven from spiral gears 4, 7, on a mainshaft 1, are mounted in separate parts 2, 3 of a casing which encloses the gearing, the casing parts having a spigot connection 11, 12 and the gear 7 being axially adjustable on the main shaft to permit variation of the distance between the tool spindles. The main shaft has a ball bearing 2<SP>1</SP> in the upper casing portion and a bearing 3<SP>1</SP> in the lower portion. The tool spindles may have a serrating cutter at each end thereof. Relative adjustment of the casing portions is effected by means of sliding wedge pieces the parts being clamped after adjustment of the wedges by bolts 16.
Patent GB-878506-A (GB)
Title: Improvements in and relating to core structures for heterogeneous nuclear reactors
Inventor: HARTNELL-BEAVIS MICHAEL CARL
IPC: G21C19/16
Filed: 1959-01-22
Abstract: 878,506. Nuclear reactors; handling nuclear fuel elements. GENERAL ELECTRIC CO. Ltd. Jan. 22, 1960 [Jan. 22, 1959], No. 2414/59. Class 39(4): In a reactor comprising a core structure of blocks of moderating material some of which are formed with fuel element channels, the blocks are arranged such that the channels are positioned in unit areas of symmetry about regions which are clear of channels. As shown in Fig. 1(a) the core structure comprises square section graphite blocks some, with one central fuel element channel and others without. In a modification of Fig. 1(a), rectangular blocks equal in size to two of the square section blocks are used, these blocks being of two kinds, one kind having a pair of channels and the other a single channel Fig. 1(b), not shown). In a further modification square section blocks equal in size to four of the square section blocks of Fig. 1(a) are used, these blocks being of two kinds, one kind having four channels and the other three channels. In both these modifications the channels are disposed on the same lattice as in Fig. 1(a). Cruciform blocks Fig. 1(c), each having four fuel element channels provide another arrangement. In each of the arrangements described with reference to Fig. 1 the channels are serviced in groups of four by simple azimuthal alignment of the refuelling apparatus. Control rod holes may be provided in the core at positions disposed at the centres of the groups. In an arrangement utilizing hexagonal section blocks, Fig. 2, the blocks having fuel element channels are arranged in groups of six about a block which may have a control rod hole. In a further arrangement, Fig. 3, octagonal section blocks each having four fuel element channels are provided, the spaces between these blocks being filled by square section blocks, the channels being serviced in groups of eight. A gas-cooled reactor utilizing the core structure of Fig. 2 is described with reference to Fig. 4 (not shown), the core being re-fuefled from underneath by a charging apparatus inserted through a selected stand-pipe and adjustable in azimuth. The core may embody the invention disclosed in Specification 877,679 and the fuel elements may be as disclosed in Specification 873,112.
Patent GB-1046551-A (GB)
Title: Method of making cohesive but non-adhesive porous plastic material
Inventor: STRAUSS HOWARD JEROME
IPC: C08J9/26
Filed: 1964-01-20
Abstract: A cohesive but non-adhesive porous or microporous material is obtained by thoroughly mixing a synthetic polymeric plastic material, a natural or synthetic rubber which is not cured or vulcanized, and a removable particulate poreforming material at a temperature above the softening temperature of the polymeric material and the rubber, forming the mixture to a desired shape and removing the pore-forming material.  Preferably, polyethylene is used as the polymeric material and butyl rubber as the rubber. Specified pore formers are sodium chloride, ammonium sulphate, cane sugar and rice, maize, wheat or potato starch.  The size of the pores may be varied according to the particle size of the pore-former and the temperature at which it is removed from the material.  The product can be used for making bandages.
Patent GB-871902-A (GB)
Title: Improvements relating to shaft seals
IPC: F16J15/38
Filed: 1959-01-22
Abstract: 871,902. Stuffing-box substitutes. GOETZEWERKE F. GOETZE A.G. Jan. 22, 1959 [March 21, 1958], No. 2468/59. Class 122(5). A shaft seal of the kind in which a helical spring 7 transmits the torque of the shaft 3 to a hous- 2 and thence to a sliding ring seal 1 has the housing and ring formed in one piece by pressing, injection moulding, casting or forging but of materials having different properties, the ring material having good sliding characteristics and the housing material being more resistant to impact and breakage. The two parts may be formed from metals by casting or forging, or from similar plastics possessing the different properties; in the latter case, graphite may be used in the material of the ring. The spring 7 engages at one end a collar 8 on the shaft and at its other end acts upon a washer 6 to press a rubber ring 5 into the housing. The end of the spring within the housing is out-turned at 9 to engage an axial slot in the housing. The spring may be conical or cylindrical with its free end pushed on to a bushing on the shaft.
Patent GB-563539-A (GB)
Title: Fuel injection apparatus
IPC: F02M45/12
Filed: 1943-02-15
Abstract: 563,539. Fuel injection pumps. AKTIEBOLAGET ATLAS DIESEL. Feb. 15, 1943, No. 2470. Convention date, March 7, 1942. [Class 102 (i)] In a fuel injection pump for internal-combustion engines in which the fuel is injected in two pressure stages forming a continuous injection period, the first stage being at a pressure which is relatively low and preferably substantially constant, and the second stage being at a pressure which increases from the value of the first stage to its maximum value without any lowering of pressure taking place between the two stages, a cylinder 23, connected by a channel 24 to the fuel passage 15 leading from the pump 1 to the injection valve, contains a piston valve 25 which is movable between a valve seat and an adjustable abutment 28 and which is loaded by a spring 26 corresponding to the relatively low fuel injection pressure, the reduced end 29 of the valve 25 forming in its closed position a space 30 containing a quantity of fuel unloaded by the fuel pressure. The space 30 may be connected by channels 32, 33 with an annular recess 31, so that during the first stage of the injection a part of the fuel will pass through a throttle channel 34 to the pump suction chamber. When the valve 25 engages the abutment 28 the second stage of the injection takes place. Specification 545,559 is referred to. The Specification as open to inspection under Sect. 91 describes and illustrates a form which does not include the space 30, states that the piston 25 may be replaced by a bellows or diaphragm, or by a positively governed piston working in a cylinder in communication with the fuel pipe, and comprises also the subjectmatter of Specification 563,551. This subjectmatter does not appear in the Specification as accepted.
Patent GB-647414-A (GB)
Title: Improvements in and relating to vitreous coating compositions for electric insulators
IPC: H01B3/08
Filed: 1948-01-28
Abstract: 647,414. Vitreous materials. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 28, 1948, No. 2585. Convention date, Jan. 29, 1947. [Class 56] [Also in Group XL(a)] A vitreous article (e.g. the tubular envelope of a high-voltage electronic discharge device) is provided with a coating of predetermined electrical resistivity comprising a glass containing SiO<SP>2</SP>, PbO and one or more metals of the 5th periodic subgroup which has been finely powdered and suspended in a medium. The coated article is heated in hydrogen or other reducing gas at about 300‹-630‹C. Particular examples containing Sb<SP>2</SP>O<SP>3</SP> or Bi<SP>2</SP>O<SP>3</SP> are given.
Patent GB-949737-A (GB)
Title: Safety razor blade dispenser
Inventor: KUHNL LEOPOLD KARL
IPC: B65D83/10
Filed: 1962-01-24
Abstract: 949,737. Razor blade dispensers. EVERSHARP Inc. Jan. 24, 1962, No. 2588/62. Heading B8P A safety razor blade dispenser comprises a rectangular housing 20, a spring 63 supported in the housing for pushing a stack of blades 22 upwardly against the top wall 23 thereof, a U-shaped backstop 45 engaging the rear ends of the blades 22 and provided with rearwardly extending arm portions 46 whose ends 50 engage notches 51 in the side walls of the housing 20, and a plug 55 which is interlocked with the rear end of the housing 20 and positioned within the backstop 45 to retain the arm portions 46 in engagement with the walls of the housing. A blade-pushing member 32 is slidably engaged in a slot 31 of the housing 20 and is provided with a plate portion 34 which abuts the rear end of the uppermost blade 22 so that when the member 32 is advanced the blade is ejected through a slot 43. An extension 28 of the housing 20 is forced endwise into an opening in a razor head to facilitate the insertion of a new blade.
Patent GB-1303883-A (GB)
IPC: C03C3/076
Filed: 1970-01-20
Abstract: 1303883 Glass composition OWENSILLINOIS Inc 20 Jan 1970 [17 Feb 1969] 2606/70 Heading C1M An X-ray absorbing boron-free alkali metal silicate glass contains SrO 2 , more than 50% by weight SiO 2 , not more than 2% Ti 2 O and CeO in an amount not more than 1% by weight. A preferred composition in percentage by weight is SiO 2  50-70; Na 2 O 3-10; K 2 O 5-15; SrO up to 15 Al 2 O 3  0-6; BaO 0-20; PbO 0-30; CaO 0-8; MgO 0-3; F 2  0-2 Li 2 O 0-2 Mno 0-2 Sb 2 O 3  0-1; TiO 2  0-1 CeO not more than 1; rare earths 0-1. Rb 2 O and Cs 2 O, up to 2% by weight, and colorants such as NiO and CoO may also be present particularly to give a grey colour. The glasses are stated to have a softening point between 625 and 700 C. and annealing point of between 425 and 525 C. and a density of 2À57 to 2.8.
Patent GB-502057-A (GB)
Title: Improved protective coatings for tanks for liquid fuels
IPC: B64D37/32
Filed: 1938-01-27
Abstract: 502,057. Coating tanks. SOLCIA, E: Jan. 27, 1938, No. 2678. Convention date, Jan. 30, 1937. Drawings to Specification. [Class 69 (i)]. [Also in Group V] Fuel tanks of aircraft &c. liable to be pierced by projectiles &c. are coated on the outside with a spongy rubber mass containing substances which cause the mass to swell in contact with hydrocarbon fuels, e.g. Norwegian tar, oil of resin, mineral oil or butyric acid. The sponge sheet is applied to the exterior of the tank over a coating of thin waxed fabric or of nitrocellulose or oil varnish. Coatings of elastic and plastic rubber may then be applied and the whole covered by wire mesh or by cotton or hemp reinforced by intermeshed ribbons, and with a layer of non-inflammable flexible varnish.
Patent GB-1273714-A (GB)
Title: Recovery of basic triarylmethane dyes from solutions and dispersions thereof
Inventor: FELDMAN MARTIN LOUIS
IPC: C09B67/54
Filed: 1971-01-19
Abstract: 1,273,714. Purification of triarylmethane dyes. AMERICAN CYANAMID CO. 19 Jan., 1971 [20 Jan., 1970 (2)], No. 2682/71. Heading C4P. Basic triarylmethane dyes are recovered from an aqueous dispersion of the dye in salt or copper complex form by adding an inorganic base so as to convert all the dye into its colour base form, the reaction being conducted in the presence of a non-polar water immiscible organic solvent for the colour base in which the salt and copper complex are insoluble, thereby extracting the dye base into the solvent as it is formed, separating the resulting colour base solution from the aqueous phase and recovering the triarylmethane in salt form by reacting the colour base with an acid. Suitable organic solvents are mononuclear aromatic hydrocarbons, chlorobenzene or carbon tetrachloride. The process is particularly suitable for diaminotriphenylmethanes, triaminotriphenylmethanes e.g. Methyl Violet, and triamino-diphenylnaphthylmethanes e.g. Victoria Blue.
Patent GB-397379-A (GB)
Title: Coffee filter
IPC: A47J31/06
Filed: 1933-01-27
Abstract: 397,379. Coffee-pots. ARNBAK, M., 55, Kobmagergade, Copenhagen. Jan. 27, 1933, No. 2706. Convention date, Feb. 2, 1932. [Class 129.] A coffee-pot 1 has a container 3 fitting into its upper part. The bottom of the container has a screw-on end 7 which secures a strainer plate 9 in position. The coffee grounds are placed in the container 3 and the beverage filters through the plate 9.
Patent GB-639490-A (GB)
Title: Center drilling tool
IPC: B23B51/10
Filed: 1948-01-29
Abstract: 639,490. Drills. THUNE, T. Jan. 29, 1948, No. 2738. Convention date, Feb. 1, 1947. [Class 83 (iii)] A centre drill 9 is adjustably fitted in a countersink 5 by means of a socket 1 of which the lower portion is tapered and slotted and fits in a corresponding tapered bore in the countersink so that it grips the drill. The upper end of the bore of the countersink may be screwthreaded at 8 to engage corresponding screw-threads on the socket, or the countersink may be held on the socket solely by the frictional engagement between the conical surfaces.
Patent GB-551335-A (GB)
Title: Improvements relating to signalling lamps
IPC: G02B26/04
Filed: 1941-02-28
Abstract: 551,335. Signalling lamps. ALDIS BROS., Ltd., and ALDIS, A. C. W. Feb. 28, 1941, No. 2743. [Class 118 (ii)] A lamp for transmitting flashes of different colours comprises a fixed, apertured' plate mounted in front of a light-source, a movable plate having sets of differently coloured apertures which can be oscillated so that selected pairs of apertures move over the apertures in the fixed plate, means for varying the size of the apertures in the fixed plate, and mean oscillating between fixed stops for operating the movable plate. The fixed plate c<SP>1</SP>, Fig. 4, is furnished with radially arranged apertures g which can be partially masked by setting a disc 12 having stepped apertures 7. The plate c<SP>1</SP> is fixed in front of a light source and carries a rotatable plate h, Fig. 3, furnished with sets of slits i some of which, j, k, are fitted with coloured transparencies, the plate having an undulating segment 2 co-operating with a spring roller 3 to effect movement with a snap action. The plate h is oscillated by a lever s having a serrated thumb piece t. A controlling arm w oscillates between fixed stops x and can be secured to the lever s by the engagement of a slot z in the arm with one of the projections y on the lever. By these means the plate h can be oscillated to give consecutive flashes through any two adjacent slits i. A screen is provided in the lamp whereby only reflected rays pass through the slits.