baber/WOPTO huggingface dataset:
Patent GB-1194920-A (GB)
Title: Polymers containing Carbonate and Carbamate Groups
IPC: C08G63/68
Filed: 1967-11-07
Abstract: 1,194,920. Carbonate-carbamate copolyesters. PPG INDUSTRIES Inc. 7 Nov., 1967 [8 Nov., 1966], No. 50452/67. Heading C3R. New polymers contain the residues of (a) a bisphenol in which the group linking the two hydroxybenzene radicals is an alkylidene, aryl- or halo-substituted alkylidene, or cycloalkylidene group (b) a dihydroxydiphenyl sulphone or a dihydroxydiphenyl polysulphone in which the phenyl groups may be substituted, (c) carbonic acid and (d) the theoretical biscarbamic acid of formula  where is the residue of a primary or secondary diamine; the residues of (a) being in excess of those of (b) and the residues of (c) preferably being in excess of those of (d), e.g. by a factor of 2 to 25. Specified amines are piperazine, alkyl piperazines, condensation products of N-alkyl anilines with aldehydes or ketones and various aliphatic, cycloaliphatic and aromatic diprimary amines. The polymers may also contain the residues of (e) another dihydric phenol, e.g. resorcinol, hydroquinone, dihydroxydiphenyl, dihydroxydiphenyl ether or diphenols having a plurality of benzene nuclei joined by different radicals selected from sulphone, alkylidene and ether radicals, (f) ethylene glycol, 1: 3-propanediol, 1: 4-butanediol, diethylene glycol, thiodiglycol or phthalyl alcohol or (g) maleic, phthalic, isophthalic or terephthalic acids. The polymers may be made by reacting a low molecular weight chloroformate terminated polycarbonate of (a) and (b) with a diamine. The low molecular weight polycarbonate may be (i) a random copolymer derived by phosgenating a mixture of (a) and (b); (ii) a polymer terminated by alkylidene bisphenol chloroformate groups obtained by phosgenating (b) and reacting the polymer with (a) and additional phosgene; or (iii) a polymer terminated in dihydroxydiphenyl sulphone chloroformate groups obtained by phosgenating (a) and reacting the product with (b) and additional phosgene. Phosgenation is normally effected by the interfacial process. Block copolymers may be made by reacting a bischloroformate terminated polycarbonate of (a) and/or (b) with a diamine and reacting the product with additional dihydric phenol and phosgene. Examples disclose polymers obtained from bisphenol A, 4: 4<SP>1</SP>- dihydroxydiphenyl sulphone and phosgene.
Patent GB-1343352-A (GB)
Title: Treatment of hides pelts skins and the like
IPC: C14C1/06
Filed: 1971-10-29
Abstract: 1343352 Dehairing hides and skins ROHM GmbH 29 Oct 1971 [29 Oct 1970] 50466/71 Heading C6C Liming of hides, pelts, skins &c, is carried out in an aqueous liming liquid containing both urea and hydrazine. The liming, which may be performed with calcium hydroxide or a sulphide liming agent such as alkali metal, e.g. sodium or ammonium sulphide, or an alkaline earth metal, e.g. calcium sulphide, may be preceded by an enzymatic soaking and enzymatic hair or wool removal, and followed by enzymatic bating. The liming liquid may also include sulphur-containing reducing agents, e.g. alkali metal such as sodium, ammonium, or alkaline earth metal sulphites, bisulphites, hydrosulphites or mercaptides, or mercaptans. Thioglycollic acid or salts thereof are particularly preferred. Other additives to accelerate the liming process or reduce plumpness of the treated hides may be used, e.g. salts such as potassium thiocyanate, potassium oxalate and potassium bitartrate; also amines such as dimethylamine, glycols, dioxan, acrylamide and methacrylamide.
Patent GB-1371662-A (GB)
Title: Pneumatically powered dispensing tool
IPC: B05C17/005
Filed: 1971-11-01
Abstract: 1371662 Extrusion guns SPOTNAILS Inc 1 Nov 1971 50668/71 Heading F1R [Also in Division B2] A pneumatically actuated extrusion gun is controlled by a trigger valve comprising two piston members 17, 18 controlling connection of supply passage 22 and exhaust passage 25 to passage 23 which communicates with the end of the tubular housing member 30 adapted to receive a cartridge 40 having a piston-like cap 42 initially sealed to the cartridge sleeve. Means is provided for breaking the seal when the cartridge is enclosed in the member 30 by the end caps 13, 34. As shown a protruding boss 26 engages the cap 42 to break the seal. In a modification a hand actuated plunger is engageable with the cap Fig.3 (not shown). The interior surfaces may be coated with low-friction self-lubricating, abrasion resistant, non-stick, corrosion resistant coatings. Various nozzles 61 may be fitted to the gun (see Division B2).
Patent GB-1063517-A (GB)
Title: Methods and composition for the purification of gases
IPC: B01D53/52
Filed: 1963-12-30
Abstract: A composition suitable for removing CO2 and H2S from a gas mixture, comprises an aqueous solution of a major proportion of potassium carbonate or borate or a mixture thereof activated by a minor proportion of ethylene polyamines, alkanolamines, alkanolamine borates or mixtures thereof.  Gas mixture containing CO2 and H2S enters absorber 1 at 7 and passes up packed absorption zone 3 against a lean aqueous potassium carbonate solution entering by line 11, through chimney tray 8 to packed absorption zone 4 against a lean aqueous monoethanolamine (MEA) solution entering by line 18 and leaves the absorber at 9.  Rich K2CO3 solution leaves the absorber by line 12 passing to regenerator 2 where it is contacted with steam in zone 6 and collects above chimney tray 14 being returned to absorber 1 by way of pump 10. Rich MEA solution is withdrawn from absorber 1 at 8 by line 19, passing through exchanger 20 to regeneration zone 5 where it is contacted with steam before being returned to the absorber by way of heat exchanger 20, pump 16 and cooler 17.  The steam for regeneration which may be either introduced at the bottom of regenerator 2 or made by boiling the aqueous amine solution at 23, leaves the regenerator by <PICT:1063517/C1/1> line 25 together with CO2 and any H2S present and is condensed at 26 any MEA present in the condensate being returned to regenerator 2 by line 29. An alkali metal vanadate, vanadite or arsenite may be added to the solution as a corrosion inhibitor. Tetra-ethylenepentamine is used in one example whilst a list of suitable amines is given. It is stated to be known to use As2O3, selenons or tellurons acids, protides and amino acids as activators for potassium carbonate scrubbing solutions.
Patent GB-1219048-A (GB)
Title: Improvements in or relating to coke ovens
IPC: C10B27/06
Filed: 1969-10-21
Abstract: 1,219,048. Coke oven standpipes. KOPPERS CO. Inc. 21 Oct., 1969 [21 Oct., 1968], No. 51614/69. Heading C5E. The lid 25 and damper valve 27 of the standpipe 19 of a coke oven are operated simultaneously through an interconnecting rod 39. Clockwise rotation of the wheel 33 causes counterclockwise rotation of the cam 43 to close the valve 27 through movement of parts 53, 55. Further rotation of the wheel causes a pin 35 on the wheel to engage an arm 49 on the shaft 29 to open the lid 25, see Fig. 3 (not shown). On rotating the wheel 33 in the opposite direction, the arm 49 is engaged by a pin 47 to close the lid 25, the parts 43, 53, 55 subsequently opening the valve 27. The wheel is actuated by a double-acting cylinder-piston 69 carried on a larry car 13, which may have a similar arrangement 69, 73 at the other side, see Fig. 1 (not shown). The parts 69, 73 can be swung away from the wheel 33 in any position of the part 73.
Patent GB-1422832-A (GB)
Title: Encoding system for forming 2-channel signals from a plurality of sound signals
IPC: H04S3/02
Filed: 1973-11-07
Abstract: 1422832 Quadrophonic encoders SANSUI ELECTRIC CO Ltd 7 Nov 1973 [29 Dec 1972] 51640/73 Heading H4R In a quadrophonic encoder for mixing signals 11-14 in major and minor proportions and with reference and quadrature phase shifting to produce two composite channels 26, 28 of the form L = LF + #RF + jLB + j#RB and R = RF + #LF - jRB - j#LB, additional (centre) signals 30, 31 are added to the channels as in-phase major proportions and quadrature minor proportions. These proportions lie between 0À01 and 0À1 (i.e. - 40 to - 20 db) and # = 0À414. The arrangement ensures that the centre signals in the reproduced L and R channels are in quadrature, thereby preventing the decoder of Specification 1,402,320 from enhancing front-back or leftright separation incorrectly, such enhancement normally ensuing from detection of in-phase or anti-phase components in the reproduced composite signals L, R.
Patent GB-1405940-A (GB)
Title: Apparatus for processing tissue for electron microscope examination
IPC: G01N1/31
Filed: 1972-11-10
Abstract: 1405940 Preparing specimens for electron microscopy SAKURA SEIKI K K 10 Nov 1972 51936/72 Heading G2J An apparatus for preparing a specimen for electron microscopy by dipping it successively in various reagents at various temperatures for various lengths of time has means for effecting some of the immersions under reduced pressure, and comprises an annular hollow jacket member 40 having a series of cylindrical pockets 54 each containing a reagent receptacle 12. A disc 5 is mounted on a shaft 6 rotated with an indexing motion via a geneva mechanism 25, 26 and oscillated vertically by a cam 27. The disk 5 carries depending rods 7, one of which, of adjustable length, carries a basket 9 for the specimen and a sealing cap 8 which co-operates with an annular pad 60 around each receptacle 12 to seal it; the other rods 7 carry spring-mounted lids 10 adapted to seal the other receptacles 12 to prevent evaporation. The basket 9 is agitated in the reagent by a driven crank mechanism 113. Upon withdrawal from a viscous reagent the basket 9 may be held stationary over the receptacle 12 for a time to allow reagent to drip back into the receptacle 12. Some of the cylindrical pockets 54 are connected via solenoid valves 76 and filters to a vacuum pump 75 so that the immersion of the specimen in some of the reagents may be accomplished under reduced pressure. To heat or cool the reagents water is circulated through the annular jacket member 40 from a reservoir 44 provided with a refrigerating coil 50 and two heating coils 51, 52 thus giving three possible operating temperatures; thermostatic control may be provided. The apparatus is covered and sealed by a hood 4 connected to an exhaust system 80-86 for noxious gases. Dry filtered air is supplied to the interior of the hood through a pair of silica gel drying devices, one such device undergoing a heated recovery process while the other is operating. A main electric motor 15 provides the two motions of the shaft 6 under the control of a main timer. The receptacles containing viscous reagents have adjacent micro-switches 100 whose closure by a pin 101 depending from the disk 5 activates a system of relays connected to the main timer, and to a secondary timer, to provide for the delay in the motion of the specimen while the reagent drips back into its receptacle 12. Specific concentrations for the reagents, which include glutaraldehyde, cacodylate buffer, osmic acid, alcohol, propylene oxide, and liquid "Epon" resin, are disclosed; immersion times range from 10 minutes to 120 minutes; the temperatures involved are 4‹C, 20‹C and 37‹C.
Patent GB-1145035-A (GB)
Title: Printer carriage control
IPC: G06K15/16
Filed: 1967-11-15
Abstract: 1,145,035. Printer carriage control. INTERNATIONAL BUSINESS MACHINES CORP. 15 Nov., 1967 [15 Dec., 1966], No. 51954/67. Heading G4H. Apparatus for controlling the movement of a print document carriage includes core storage 12 containing, at each storage position, coded representations of carriage movement for a print line, the stored data being read out in synchronism with the carriage movement. In the embodiment described for controlling a skip-stop magnet, coded signals representing skip-stop commands are first read in to the storage positions associated with the lines at which the printer carriage is required to stop. As the carriage is moved, the data in each storage position is entered under the control of carriage emitter pulses E1 into a register 30, the contents of which are compared with a carriage skip command signal to control the skip-stop magnet when coincidence occurs.
Patent GB-1094426-A (GB)
Title: Mothproofing
IPC: D06M13/08
Filed: 1966-11-21
Abstract: A process for protecting wool fibres or other animal fibres against moths and other keratin-eating insects, comprises treating the fibres with dihydroheptachlor, i.e. 1- or 2- exo- or 2-endo-4, 5, 6, 7, 8, 8-heptachloro-4, 7-methylene-3a, 4, 7, 7a-tetrahydro-indane or a mixture of these isomers.  The treatment may be in an aqueous bath, suitably containing a non-ionic emulsifier and an organic solvent.
Patent GB-1069320-A (GB)
Title: Mechanisms for feeding closure caps
IPC: B65G47/14
Filed: 1965-12-08
Abstract: 1,069,320. Feeding tablets. AN CHOR HOCKING GLASS COR PORATION. Dec. 8, 1965 [March 30, 1965], No. 52075/65. Heading B8S. Tablets are discharged from hopper 6 by endless belt 11 and fall into reservoir 12 from which they are lifted by the suction holes 21 of disc 4 and discharged down shoot 5. They are orientated at 63. Thus the disc is rotated by motor 58 and provided with the holes 21, through which air is drawn by fan 51 and discharges at 53, so that the individual tablets are gripped by the disc and elevatec from reservoir 12.
Patent GB-1293799-A (GB)
Title: Improvements in and relating to cameras
IPC: G03B9/58
Filed: 1969-10-27
Abstract: 1293799 Camera actuating devices AGFAGEVAERT AG 27 Oct 1969 [25 Oct 1968] 52490/69 Headings G2A and G2E [Also in Division H1] An actuating device, e. g. for a photographic or cine camera, comprises a flexible diaphragm 6, and first 18 and second 8 actuating members arranged adjacent to the diaphragm and being so arranged that the diaphragm can be flexed to cause the first actuating member to be depressed so as to operate that member and to enable the second actuating member to be operated in response to further flexing of the diaphragm. The diaphragm 6 is tensioned in a groove 7a formed in a bushing 7 which is secured to camera housing 1. A rigid plate 9 is movable within the bushing 7 in a vertical direction. Member 18 forms a contact spring of an electrical switch 18, 19, and member 8 is a screw threaded into one end 3a of a lever 3 pivoted at 2, the other end of the lever 3 forming a retaining pawl 3b for a member 4. Pivoting of lever 3 releases member 4 to actuate exposure control means and for a shutter release. Lever 3 and screw 8 may be replaced by a switch pin of a further contact, and switch 18, 19 may be replaced by a mechanical member. The bushing 7 may be screwed into the housing.
Patent GB-526675-A (GB)
Abstract: 526,675. Luminescent materials. GENERAL ELECTRIC CO., Ltd., McKEAG, A. H., and RANBY, P. W. Feb. 20, 1939, Nos. 5602 and 32230. [Class 39 (i)] A luminescent material contains calcium, tungsten oxygen and at least one bivalent metal (M) other than calcium in proportions that the sum of the number of calcium atoms and the M atoms exceeds the tungsten atoms ; magnesium is the preferred metal but strontium, barium, zinc and beryllium may be used. With uranium as activator the light is green, yellow if bismuth is used. With uranium the material is excited by radiation of 3650, 2537 or 1.5 A.U. and by a discharge through neon ; with bismuth excitation is obtained at 3650 and 1.5 A.U. The processes of forming by heat treatment are described and in one example give a resulting composition of the proportions 2 CaO; 1 MgO; 1 WO 3  + 0.44 per cent. U. The material has a lattice structure characteristic of solid solutions as shown by X-ray spacings, tables being given of materials containing Ca and Mg and Ca and St.
Patent GB-1202263-A (GB)
Title: Improvements in or relating to display devices
Inventor: MORTON JACK ANDREW
IPC: G09F9/30
Filed: 1967-11-21
Abstract: 1,202,263. Variable reflectivity matrix displays. WESTERN ELECTRIC CO. Inc. 21 Nov., 1967 [23 Nov., 1966], No. 52824/67. Heading G5C. [Also in Division H4] The elements of a matrix display are formed of materials whose reflectivity is sensitive to an electric field at the space charge layer of their surfaces. Such electroreflectance materials, see Division H4, are described. Fig. 7 shows an element 40 of electroreflectance material, a field being applied across it to electrode 41 and transparent electrode 43. Alternatively, the insulator 42 can be eliminated and a Schottky-space charge rectifier established at the surface of element 40.
Patent GB-1523770-A (GB)
Title: Fuel assemblies for nuclear reactors
IPC: G21C3/33
Filed: 1975-12-29
Abstract: 1523770 Fuel elements ASEA-ATOM AB 29 Dec 1975 [30 Dec 1974] 52941/75 Heading G6C A fuel assembly comprises a bundle of fuel rods 2 and 3, the rods 3 being supporting rods of which, in the embodiment shown, there are four. Each of the fuel rods 2 and 3 has its upper end plug 4 and 6 axially movable in a hole in a grid-formed top plate 8, and its lower end plug in a hole in a bottom plate 9. The lower end plugs (not shown) of the rods 2 are axially movable in . relation to the bottom plate 9, whereas the lower end plugs 5 of the rods 3, which act as supporting rods, are screwed into threaded holes 10 in the bottom plate 9. Each of the upper end plugs 6 is provided with a spring 11, the sum of the forces exerted by all the springs 11 being taken up by the four supporting fuel rods 3. Each fuel rod 3 has a relatively long upper end plug 4 which passes through the top plate 8 and is provided with a nut 12, which is constructed so that it may be locked in such a way that dismantling may be performed without difficulty by a remote-controlled tool. The nut 12 is formed with a number of downwardlydirected projections 13 and in the event of a small unintentional rotation of the nut, at least one of the projections 13 will make contact with a grid member 14 of the top plate 8, so that the nut 12 is locked with respect to the top plate. When the fuel assembly is to be dismantled, e.g. in order to exchange a damaged fuel rod, the top plate 8 is pressed down, e.g. by applying a downwardly-directed force on a lifting yoke 16 attached to the top plate 8. The springs 11 are then compressed, and the top plate 8 moved to a sufficiently low level in relation to the nuts 12 that they may be unscrewed.
Patent GB-1149098-A (GB)
Title: Improved seat slide assembly for automotive vehicles
IPC: B60N2/08
Filed: 1966-11-28
Abstract: 1,149,098. Vehicle seats. HANCOCK INDUSTRIES Inc. 28 Nov., 1966 [28 Dec., 1965], No. 53097/66. Heading A4J. A seat slide assembly for a vehicle comprises an elongated track 12 secured to the floor of the vehicle, an elongated slide 13 having an upper horizontal web 27 disposed above the track and a latch 26 mounted on the slide and adapted to be received in aperture 56 in a pair of downwardly extending sides 31 of the slide and in one of a series of apertures 25 in the vertical central web 14 of the track. The latch is operated through rack teeth 47 and a gear segment 49 by a lever 48 pivoted to the slide 13; a spring 51 urges the latch into the aperture. The latch of a second slide assembly on the same seat is operated by a link 53 extending from the lever 48. An anti friction set comprising a roller 34 and a ball 35 in tandem in a metal cage is disposed between the slide and the track at the front and also at the rear. Resilient bowed inserts (38) are also disposed between the track and the slide to prevent rattling. In a modification, (Figs. 6, 7) the cage for the ball and roller is formed of a resilient plastic material and serves the same function as the inserts (38). In another modification Figs. 8, 9 the latch (203) is pivoted to the top of the slide (202) and has a pair of fingers (214,, 215) for engagement with the apertures of the track.
Patent GB-1498840-A (GB)
Title: Gas analyser
IPC: G01N1/20
Filed: 1975-12-30
Abstract: 1498840 Sampling gases BROKEN HILL PTY CO Ltd 30 Dec 1975 [31 Dec 1974] 53145/75 Heading G1B A gas sampling apparatus comprises a sampling tube (as defined), means for sealingly supporting a gas sensor within the tube, sample heating furnace means surrounding the tube and wherein the tube is connected to a gas by-pass, aspirator or other flowing gas source so that the axis of the tube is perpendicular or up to 30 degrees from the perpendicular to the direction of flow of gas to be sampled. Preferably the analyzer comprises a tube 1 attached to an aspirator pipe P carrying the gas to be sampled. Gas sensor 2, e.g. an electro-chemical cell compris- . ing a closed end oxygen ion conducting zirconia tube coated on both surfaces with Pt electrodes which enables the O 2  partial pressure of a gas sample to be measured, is supported by a gland nut 3 which effects gas tight sealing of the sensor within the tube. A heating furnace 5 comprising an alumina tube 6 is wound with a furnace wiring element 7 and fits over tube 1. The element 7 may surround a small alumina tube which receives a thermocouple (not shown) for monitoring furnace temperature. The furnace 6 is enclosed by an insulated casing 8 and the assembly is held in place on the tube by a collar 9. A protective cowling 10 surrounds the furnace assembly. A sample scoop 11 may be additionally positioned in the pipe P to ensure that an adequate sample flows into tube 1.
Patent GB-1376256-A (GB)
Title: Nuclear core positioning system
IPC: G21C1/02
Filed: 1972-11-20
Abstract: 1376256 Reactors WESTINGHOUSE ELECTRIC CORP 20 Nov 1972 [21 Dec 1971] 53484/72 Heading G6C  The fuel assemblies 38 of a nuclear reactor, especially a liquid-metal cooled, fast breeder reactor, are supported between lower and upper core plates and are radially restrained, under operating conditions, by vertically-oriented resilient members 44 (Fig. 2) each mounted at at least one end.  As shown, the resilient members are mounted on part of the lower core plate and each is connected via a load arm 57, to a former plate 43 which surrounds breeder regions of the fuel assemblies. In such regions, which may be provided both above and below the active core regions, the fuel assemblies provided spacer pads 40 which, at operating temperatures provided relative location between the assemblies as well as between the assemblies and plate 43. The properties of the resilient members 44 are altered, as radial expansion proceeds, by their abutment, successively, with stiff restraint bands 54, 55. In the lower regions of the fuel assemblies, restraint is provided by stops 47. The locating nozzles 39, 39<SP>1</SP> of the fuel assemblies in the core plates provide cold clearance but, due to differential thermal expansion, the gaps close  at operating temperature. The lower nozzles 39 include spring mountings to enable longitudinal expansion. The lower core plate comprises a doublelayer structure 30, 32 supported by columns 56 which can bend to take up differential expansion  between the parts 30 and 58. The upper core plate 34 is connected, by similarly bendable tubular columns 60, to an upper support plate 36.
Patent GB-1070710-A (GB)
Title: Improvements relating to pit props
IPC: E21D15/51
Filed: 1965-12-20
Abstract: 1,070,710. Hydraulic pit props. RHEINSTAHL WANHEIM G.m.b.H. Dec. 20, 1965 [Dec. 30, 1964], No. 53815/65. Heading E1E. In a hydraulic pit prop having a relief valve 40, a retraction spring 7 and a combined release and filler valve 13, 15, pressure fluid is adapted to flow at high speed in both directions over the sealing surfaces of the valve 13, 15 during both filling and discharging thereby clearing some of dirt particles. Pressure fluid is fed to the prop by a setting pistol, see Fig. 2 (not shown) introduced to a valve unit 17 which is rotatably mounted in the prop member 4 but axially constrained therein by a rod 18 engaging an annular groove on the unit 17. The pressure fluid is fed through the unit 17 and the valve 13, 15 to a passage 6a communicating with a tube 5 leading to the working chamber (not shown). A drawing key 34 see also Fig. 4 (not shown) may be mounted on the unit 17 to rotate same thereby actuating the release valve by means of a sliding block 25.