baber/WOPTO huggingface dataset:
Patent GB-918046-A (GB)
Title: Synthetic polymeric materials
Inventor: ABBOTT TERENCE ARNOLD
IPC: C08G64/00
Filed: 1959-09-30
Abstract: The invention comprises a synthetic polymeric material containing a multiplicity of organic nuclei of which the majority are aromatic linked together by urethane and carbonate linkages in random block distribution.  It also comprises a process of preparing such material by reacting a polyurethane having free hydroxyl end groups attached directly to a nuclear carbon atom of an aromatic nucleus with a dihydroxy compound in which the OH groups are directly attached to a nuclear carbon atom of an aromatic compound and phosgene.  In one such process an aromatic, aliphatic or aryl aliphatic diisocyanate is reacted in a first stage with a di(monohydroxyaryl) alkane in a molar ratio in the range 1:2 to 1:>1 and thereafter the product is reacted in a second stage with a further quantity of a di(monohydroxyaryl) alkane and phosgene.  The polymers are composed of units of the types (-O.R1.OCO-)x and (-O.R1OCO.NHR11NH.CO-)y linked together, R1 representing a diarylene alkane radical and R11 representing an arylene, alkylene or diarylene alkane radical. The expression "random block distribution" is intended to mean that the polymer consists of linear combinations of polymeric blocks of such units, where x and y >1, the length of the blocks being randomly distributed.  The dihydroxy compounds include di(monohydroxyaryl) alkanes the aryl groups of which are different from each other and those containing halogen substituents, hydroquinone, resorcinol, 4,41-dihydroxy diphenyl sulphone, 4.41-dihydroxy diphenyl ether and 2,6-dihydroxy naphthalene.  The polyurethane-forming reaction is preferably effected at below 100 DEG C., in the presence of an alkali such as NaOH or Na2CO3, and with the use of a polyisocyanate, such as 2,4-tolylene diisocyanate, which reacts more quickly with OH groups than with urethane groups.  The copolymerization is preferably effected in the presence of an aqueous alkali and of a water-immiscible solvent for the polymer produced.  The molecular weight of the final product can be regulated by inclusion in the reaction mixture of monofunctional compounds such as phenol, t-butyl phenol, aniline or methyl aniline.  Acceleration of the reaction and reduction of the amount of excess phosgene can be effected by adding a primary, secondary or tertiary amine or a disubstituted hydrazine. In Example (1) 1 mol. of 4,41-diisocyanato-diphenyl methane and 2 mols. of 4,41-dihydroxy diphenyl-2,2-propane are reacted together in acetone in the presence of sodium hydroxide catalyst.  The product is reacted with a further 8 mols. of 4,41-dihydroxy diphenyl 2,2-propane in aqueous sodium hydroxide containing sodium dithionite and t-butyl phenol.  Methylene dichloride is added and the mixture is phosgenated and triethylamine is added.  After acidification the solution of the polymer is washed and precipitation is then effected by addition of excess acetone.  The product can be cast into a film for use as photographic film base.
Patent GB-845457-A (GB)
Title: Improvements in coverings for containers
IPC: B65D43/02
Filed: 1957-10-24
Abstract: 845,457. Snap-closures. SHIRES, F. Oct. 22, 1958 [Oct. 24, 1957], No. 33313/57. Class 125(3). A polythene snapclosure for a can or jar having a rolled or flanged edge has a domed portion 1 and a dependent skirt 2 with an internal groove 4 so that the skirt makes contact with the rolled or flanged edge of the container 8 along two circumferential lines, A, B with a space 10 between them, there being a further space 11 between the inner surface of the lower part 5 of the skirt and the container wall. The domed head allows the skirt to be expanded by digital pressure in both application and removal, a tab, Fig. 3, (not shown), being provided on one side of the skirt to assist removal.
Patent GB-506805-A (GB)
Title: Improvements in and relating to reciprocating pumps for lubricators
IPC: F16N3/08
Filed: 1937-12-02
Abstract: 506,805. Stuffing- box substitutes POLLAK, J: E. (Morrow Lubricator Co.) Dec. 2, 1937, No. 33382. [Class 122 (v)] [Also in Groups XXVIII and XVII] A lubricating-can com- 'prises a reservoir A having a closure B fitted with a sleeve 8 guiding a rod 30, 33, the rod part 30 is screwed into part 33 and a packing 38 of frusto-conical form is gripped between the parts.
Patent GB-211987-A (GB)
Title: Improvements relating to the manufacture of pipe fittings or connections
IPC: B21C37/29
Filed: 1922-12-07
Abstract: 211,987. Howard, J., and Downing, I. Dec. 7, 1922. Pipes. - Pipe fittings are made from a flat bar by cutting flat slots b, c, Fig. 4, therein and then pressing hot between dies f, g, Fig. 7, which force the metal from between the flat faces and cause it to fill the die cavity as shown in Fig. 10. The slotted portion of the bar may be cut off before inserting in the die and the passages in the work may be finished by mandrels before or after removal from the die. The dies may be carried by a press or by rollers.
Patent GB-1025602-A (GB)
Title: Attachment for crane apparatus or the like
IPC: B66C23/72
Filed: 1964-08-17
Abstract: 1,025,602. Attachments for jib cranes. UNIVERSAL MANON CORPORATION. Aug. 17, 1964 [Oct. 21, 1963], No. 33485/64. Heading B8B. An attachment 17, Fig. 1, mounted on a boom mast 18 so that the latter may be used to support a hoisting rope instead of boom pendants 16, include a member 30, Fig. 4, which can be oriented so that a sheave 33 is either vertical, to support the hoisting line, or horizontal for connection to the boom pendants. The member 30 is held against rotation by detents 36 which engage in recesses 37, it may therefore be rotated in steps of 90 degrees. A member 25, which supports the member 30, is connected to lugs on the end of the boom mast by a shaft 23. Sheaves for the jib luffing cable are attached to the shaft 23 by a plate 19a.
Patent GB-1018475-A (GB)
Title: Improvements in visual temperature-history indicators
IPC: H01H43/32
Filed: 1962-08-31
Abstract: 1,018,475. Thermometers. HONEYWELL Inc. Aug. 31, 1962 [Sept. 6, 1961], No. 33559/62. Heading G1D. In a temperature-history indicator, for example as in Specification 903,967 wherein a matrix such as filter paper impregnated with an electrolyte is contacted by a pair of spaced dissimilar metal electrodes such as copper and tin connected externally so as to form a galvanic cell and arranged so that on a rise in temperature a colour change occurs upon contact with a front of ions migrating through the matrix, a further medium is distributed through the matrix to provide at the ion front an insoluble compound such as a hydroxide or hydrated oxide containing a metal radicle to delineate more sharply the migrating colour boundary. The insoluble compound may be provided as such and may be silver chloride, calcium oxalate or barium sulphate. Alternatively the compound may be a soluble one having a metal cation which reacts with the migrating ions to form an insoluble reaction product for example aluminium chloride, ferric chloride, bismuth nitrate, mercuric bromide or stannous chloride. If the colour charge occurs through the use of a pH indicator the reaction product is produced at a pH within the range at which the indicator changes colour, or slightly below.
Patent GB-922836-A (GB)
Title: Diffused-junction type silicon rectifier units
IPC: H01L29/00
Filed: 1961-09-19
Abstract: 922,836. Semi-conductor rectifiers. TOKYO SHIBAURA ELECTRIC CO. Ltd. Sept. 19, 1961 [Jan. 25, 1961], No. 33578/61. Drawings to Specification. Class 37. A rectifier unit comprises a diffused-junction type silicon wafer having opposite faces of diameter not less than five millimetres, and copper electrodes soldered to the opposite faces of the wafer and each having a thickness equal to at least one-sixth of the diameter of said silicon wafer and a diameter at least equal to that of the wafer. In the embodiment described, Figs. 1-4 and 6 (not shown), boron and phosphorus respectively are diffused into opposite sides of an N-type silicon sheet to form a junction layer therein. The sheet is then plated first with nickel and then with gold before being cut into discs to which copper electrodes are subsequently attached with silver containing lead solder. Threaded bores may be provided in the electrodes.
Patent GB-491946-A (GB)
Title: Improvements in crushing and straining devices for foodstuffs
IPC: A47J19/00
Filed: 1936-12-07
Abstract: 491,946. Mashing and straining fruit &c. DEWANDRE, G. Dec. 7,. 1936, Nos. 33587 and 33588. Void. Convention dates, Dec. 6, 1935 and March 26, 1936. [Class 28 (ii)] [Also in Group I] A device for crushing and straining fruits, vegetables, and other foodstuff and used for making jam, soups, and the like, comprises a vessel A having a perforated base E, a central shaft B, rollers D, journalled on radial a,rms C on the shaft B, and scrapers F attached to the ends of the arms C. In a modification, the shaft B is made in two parts connected together by a driving- socket and the scrapers F are dispensed with. The shaft B carries shredding and scraping arms and the rollers D are kept against the base E by a spring, on the shaft B, beneath the base.
Patent GB-1082258-A (GB)
Title: A device for locking coupling or draw bars or centre poles, particularly in agricultural machines
IPC: A01D67/00
Filed: 1964-08-17
Abstract: 1,082,258. Fastening devices. JOHN DEERELANZ, A.G. Rug. 17, 1964 [Aug. 16, 1963], No. 33597/64. Heading E2B. A device for locking a coupling or drawbar or centre bar 1 of an agricultural machine selectively in one or other of two end positions, comprises a pivotally mounted locking lever 19, 20 movable between alternative locking positions in which the locking element serves to lock the bar or pole in its respective end positions and biassing means 14 are arranged during operation of the locking element from each locking position to bias the locking element towards the other locking position. The coupling bar 1 of an agricultural machine is pivoted in a casing 3 by a pin 2 near its end connected with the machine. Extending through two plates 4, 5 of the casing is a bolt 10 one end of which has a handle 12, the other end being formed into a crank 13 acted upon by a spring 14. A catch member 16 is mounted within the bolt 10, its two ends projecting into bores 17 of a cylindrical part 18. The outer wall of the cylinder 18 has two radially extending arms 19, 20 which together form a locking lever 19-20, the free ends of the arms being adapted to engage hollow neck pieces 21, 22 in the radius bar. To move the bar from one position, i.e. that shown in Fig. 1, to the other, the bolt 10 is rotated counterclockwise until the arm 19 abuts the end plate 8 of the casing freeing the bar 1 for pivoting into its new position. Rotation of the bolt 10 causes rotation of the catch 16 through the bores 17 until it abuts the cylinder 18 whereupon movement of the locking lever is started. The free movement brings the crank 13 to the centre position so that further rotation moves the crank past the dead-centre position, the torque of the spring 14 thus aiding any further rotation of bolt 10. As the coupling bar 1 is swung across it engages the arm 20 and rotates it clockwise causing it to turn round the end of the bar until the arm 20 engages the neck 22. The spring 14 urges rotation in a counter-clockwise direction to clamp the bar against an abutment 25 on the casing. In another embodiment the bolt 10 is replaced by an eccentric pin so that the arm 19 is raised off the hollow neck portion when the tilting lever is rotated.
Patent GB-1017040-A (GB)
Title: Ice making device
IPC: F25C1/14
Filed: 1964-08-18
Abstract: 1,017,040. Ice-making. KING-SEELEY THERMOS CO. Aug. 18, 1964 [Aug. 23, 1963], No. 33779/64. Heading F4H. An ice-making device comprises a tubular housing 12, an auger 14 rotatable within the housing and a discharge aperture 60 in the upper end of the housing, the upper end portion 50 of the auger being flared outwardly at 54 so that ice passed upwardly into the chamber 58 defined by auger portion 50 and housing 12 is compacted and directed towards aperture 60. A blade 102 having a knife-edge portion 110, 112 curved to correspond to the shape of auger portion 50 extends through the aperture 60 and has a central rib 130. The position of the blade is adjustable. The auger portion 50 is bolted to the ice-removing portion thereof which comprises a cylinder 24 having a helical blade 26. In a modification (Figs. 4 and 5, not shown) the flared portion is integral with the remainder of the auger and the blade 302 is integral with the discharge nozzle 262 which is adjustably clamped to the housing. The discharge outlet is further restricted by a projection 329 formed on the nozzle 262 opposite the blade.
Patent GB-1424567-A (GB)
Title: Lightweight foambed sheet materials and articles formed therefrom
IPC: B32B3/28
Filed: 1973-07-16
Abstract: 1424567 Moulding foamed resin sheet materials; laminates IDEMITSU KOSAN KK 16 July 1973 [17 July 1972 (2)] 33808/73 Heading B5A and B5N [Also in Division C3E] A lightweight foamed sheet 1 having complementary concavoconvex patterns 2, 3 is produced by moulding, under pressure, a sheet of foamed polyethylene resin (defined below) containing at least 30% by weight of an inorganic calcium compound as filler. Compression between appropriately shaped metal male and female moulds may be employed, or vacuum forming assisted by compressed air. In the latter case the sheet will preferably be heated before moulding. The shaped sheets produced may be laminated together to provide a cushion or, as in Fig. 3, used to produce a mattress, by punching holes 14, 15 in the recesses 12, 13, laminating sheets 16, 17 of polyurethane to the sheet 11 using P.V.A. adhesive, and providing an outer cloth covering 18, 19. "Polyethylene resin" includes polyethylenehomopolymer, copolymers having a major proportion of polyethylene, and blends containing a major proportion of polyethylene. The sheet to be moulded may be obtained by cutting a larger moulded block.
Patent GB-633593-A (GB)
Title: An improvements in combined net-weighing and valve bag filling machines
IPC: B65B1/18
Filed: 1947-12-22
Abstract: 633,593. Filling va,lve-bags. BILLERUDS AKTIEBOLAG. Dec. 22, 1947, No. 33810. Convention date, Aug. 9, 1941. [Class 94(i)] In a valve-bag filling machine comprising a series of bag filling devices 5 each provided with a hopper 6 and filler tube 7 and mounted in a circle on a continuouslyrotating assembly 1, and a lesser number of stationary automatic weighing machines 10 adapted to weigh determined quantities of material which are afterwards released into the hoppers as they pass below the weighing machines, by means of abutments or the like which rotate with the assembly, a safety device is provided for each of the filling devices, which when there is no bag on the respective filler tube, occupies a safety position preventing the release of the respective weighing machine by the abutment, but when passing an empty bag on to the filler tube, is moved out of the safety position by the bag. The assembly 1 has wheels 3 running on circularly disposed rails 4 and rotates about a central axis 2. Each filling device 5 has a feed-screw or like feeding means (not shown) driven by a motor 8. Each bag rests on a carrier 9 which may be vibrated. In the arrangement shown, the weighing machines are arranged above half of the circular path of travel of the filling devices. The release mechanisms of the weighing-machines are operated by electro-magnets (not shown) the circuits of which are operated by the abutments (not shown) or contacts etc. replacing the abutments. The safety device may be purely mechanical, but as shown (Fig. 2) comprises a contact device 11 in the circuit of the corresponding electromagnet. A movable pin 13 is automatically engaged by the bag 12 to render the contact device 11 operative.
Patent GB-521482-A (GB)
Title: Improvements in or relating to wheel devices
IPC: B60B9/10
Filed: 1938-11-21
Abstract: 521,482. Resilient couplings. GOODRICH SOC. ANON. Nov. 21, 1938, No. 33851. Convention date, Nov. 20, 1937. [Class 80 (ii)] [Also in Groups XXXIV and XXVI] A resilient wheel, stated to be applicable for use as a pulley, flywheel, or an elastic shaft-coupling, comprises an outer rim 2 suspended from an inner rim 3 by elastic rings 1 mounted, in tension, on pairs of pins 6, means being provided for varying the tension in the rings. In the construction shown in Fig. 1, the inner pins 6 are arranged eccentrically on discs 37 which may be adjusted, individually or collectively, by means of toothed segments 31 meshing with pinions 41 fast with the discs 37. Fig. 2 shows a modification in which the rings 2, 3 are provided with radially-spaced sets of holes 8, 9 respectively for selective engagement by the pins 6. As shown in Fig. 3, rubber blocks 46 may be fitted inside the rings 1 to act as buffers under abnormal load or shock. The Specification as open to inspection under Sect. 91 describes also the provision of shockabsorbers for damping the relative displacements of the inner, and outer rims. This subject-matter does not appear in the Specification as accepted.
Patent GB-1206474-A (GB)
Title: Colour blended knitted fabric
Inventor: HEINROTH KARL-AUGUST
IPC: D02G3/34
Filed: 1967-09-20
Abstract: 1,206,474. Knitting. FARBENFABRIKEN BAYER A.G. 20 Sept., 1967 [20 Sept., 1966], No. 33930/67. Heading D1K. A colour blended warp knitted fabric comprises at least one warp composed of threads the filaments of each of which are of a contrasting colour, for example, half the filaments are black and the other half white, and another warp or warps is or are composed of threads the filaments of each of which being undyed or of a colour contrasting with the colours of the filaments of the yarns of the first warp. The first warp may be knitted with long flat threads on a 'background of the other warp and the fabric may be brushed and shorn and overdyed. The filaments may be based on a polyamide, polyester or polyacrylonitrile. Specification 1,204,384 is referred to.
Patent GB-1517013-A (GB)
Title: Monolithic light-emitting diode and modulator
IPC: H01L27/00
Filed: 1975-08-14
Abstract: 1517013 Semiconductor devices NORTHERN ELECTRIC CO Ltd 14 Aug 1975 [17 Sept 1974] 33940/75 Heading H1K The light emitted from a forward biased photo-diode 36 junction formed in one of the semiconducting layers 32 of heterostructures 41 has a wavelength greater than the absorption edge for layer 32 in regions 41, which allows the flight intensity to be modulated by the electroabsorption occurring on reverse biasing the regions 41. The heterostructure comprises n- and p-type layers 31, 33 of GaAlAs, and n- and p-type layers 32, 33 of GaAs grown by sequential deposition on a substrate 30, using liquid phase epitaxy. Isolation of the photo-diode region 36 is achieved by selective etching. The Au electrode 38 and the AuGe electrode 42 are formed by vacuum deposition. Alternative structures may combine layers 33 and 34. In an application of the device to an AND logic element, Fig. 13 (not shown), a second diode is used as a detector which responds only when two simultaneous signals are applied to two modulators between the emitter and detector.
Patent GB-505679-A (GB)
Title: Improvements in or relating to brick making
IPC: B28C1/22
Filed: 1937-12-08
Abstract: 505,679. Mixing - apparatus; brick manufacture. MAXTED, G. V., and TIPPING, F. G. Dec. 8, 1937, No. 34009. [Class 86] [Also in Groups V and X] In the manufacture of bricks the material is heated, preferably by injected steam, during the mixing operation and the bricks moulded and trans ferred to a drier while still at a temperature of about 180‹ F. The mixing-apparatus comprises a pugmill between the blades 1 of which steam is injected through nozzles 3.
Patent GB-201486-A (GB)
Title: Improvements relating to feed water check valves for steam generators and boilers
IPC: F22D5/14
Filed: 1922-12-13
Abstract: 201,486. Clench, C., and Armstrong, C. H. Dec. 13, 1922. No Patent granted (Sealing fee not paid). Feed-water, supplying and controlling.-In an automatic feed-water regulator for boilers &c. of the type in which a check valve 6 is controlled by the leakage of water past a thermostatically controlled piston 8 on the valve stem 7, a sleeve 22 is disposed around the valve 6 and arranged to move vertically independently of the valve under the control of a thermostat 1 mounted adjacent to the boiler. Preferably the thermostat is of the known type comprising an inclined expansible tube 1 connected to the steam space by a connection 3 and to the water space by a connection 4 and actuates the sleeve 22 through linkage 24, 28, 30. Leakage from the upper side of the piston 8 to the lower side 9 is effected through a restricted passage 17, Fig. 2, so that when the pressures on the two sides of the piston are equal the valve 6 is opened, but the pressure on the under side may be released by the opening of a cock 16 which is also operated by the thermostat 1 through linkage 24, 28, 34. When the water level in the boiler falls the tube 1 expands and by closing the cock 16 causes the valve 6 to be opened, and simultaneously the sleeve 22 is also raised, reverse movements occurring as the water level rises. The lever 30 may be connected to the rod 28 by a lostmotion connection, e.g. a pin and slot connection, so that the sleeve 22 is actuated subsequently to the cock 16 and valve 6.
Patent GB-820548-A (GB)
Title: Greases containing silica fillers
Filed: 1955-11-29
Abstract: A grease comprises an organic lubricating oil and the organophilic reaction product of an organic isocyanate and finely divided silica, having an average ultimate particle size below 0.1 micron and containing bound water and corresponding to the formula H2O(SiO2)x, where x is 3 to 85, in amount sufficient to thicken the oil.  The silica should contain at least 85% SiO2, may have a surface area 10-500 sq. m./gram, and may contain 1-5% calcium, barium, magnesium, aluminium, or zinc, and may be reacted with the isocyanate as described in the parent Specification, but isothiocyanates may be substituted for part of the isocyanates.  The silica may be prepared by the action of carbon dioxide on sodium silicate solution in an agitator. Isocyanates for reaction with silica are those of the parent Specification, e.g. octadecyl isocyanate, hexamethylene diisocyanate, triphenyl methane triisocyanate, tolylene - 2 - 4 - diisocyanate, and polyisocyanates.  The isothiocyanates may be butylene-1-3-diisothiocyanate, ethylene diisothiocyanate, and benzene-2,4-triisothiocyanate.  The grease may be prepared by adding the isocyanate reacted silica, say 2-30%, to lubricating liquids, e.g. petroleum based oils or high boiling stable esters, or by adding the silica, say 5-35 parts, and isocyanate, say 1-20%, of the silica to the lubricating liquid and reacting in situ.  In examples: (2), (3), (4) the isocyanate reacted silica is added to mid-continent solvent extracted oil of viscosity 78 SUS. at 210 DEG  F.; (6) silica is added to the same oil and toluene diisocyanate is then added and the mixture heated at 410 DEG  F.
Patent GB-507167-A (GB)
Title: Improvements relating to alloys, particularly for resistance wire for electric fires, heaters and the like
IPC: C22C19/05
Filed: 1937-12-10
Abstract: 507,167. Alloys. BRITISH DRIVERHARRIS CO., Ltd., and KAY, W. M. Dec. 10, 1937, Nos. 34213/37 and 30930/38. [Class 82 (i)] Alloys, particularly for resistance wire for electric heaters and the like, of the type comprising nickel and chromium or nickel, chromium, and iron, with or without tungsten, molybdenum, cobalt, manganese, aluminium, or uranium, contain also 0À01-2 per cent of thorium and 0À25-3 per cent of silicon, with or without any of the following ; 0À01- 2 per cent of rare earth metal such as cerium, 0À01-0À5 per cent of alkaline earth metal such as calcium, and 0À01-1 per cent of zirconium. 0À01-0À5 per cent of magnesium may be added for deoxidizing purposes.