baber/WOPTO huggingface dataset:
Patent GB-1208516-A (GB)
Title: Microfilm viewing apparatus
IPC: G03B21/43
Filed: 1968-08-20
Abstract: 1,208,516. Slip couplings; reversing gearing; Clutches. INDIAN HEAD Inc. 20 Aug., 1968 [15 Sept., 1967], No. 39731/68. Headings F2C, F2D and F2U. [Also in Divisions G2-G3] A microfilm viewing apparatus having spindles (15, 16), Fig. 1 (not shown), for the film take-up and pay-out reels includes a clutch drive to drive wheels 34, 35, Fig. 2, spaced on a shaft 26 and mounted so that the shaft can rotate without turning the drive wheels if a slight restraining force is applied to the latter, a radially extending pin 40 on the shaft being received in a helical slot in a sleeve 38, disposed on the shaft between the drive wheels, so that rotation of the shaft in either direction causes the sleeve to move axially into frictional engagement with one or other of the drive wheels to transmit the drive thereto. Spindles 15, 16, Fig. 3, are arranged on either side of a projection system (14) so that film passing through an aperture (17) is projected by a rear lens and mirror system (not described) on to a front facing screen (12). The shaft 26 is rotated by handle 20 acting through a slip clutch in which a wheel 31 is engaged by a clutch member 27 secured to the shaft 26 and an axially-movable spring-loaded clutch member 28 keyed to the shaft 26. The maximum torque which can be transmitted is limited by this arrangement. A pad P applies a light frictional drag to sleeve 38. Wheels 34, 35 transmit the drive via chains or toothed belts 36, 37 to wheels 51 or 58 which respectively drive the spindles 15 or 16 through shafts 50, 57, bevel gears 54, 55, 61, 62 and shafts 56, 63. In dependence on the direction of rotation of handle 20 one or other of the spindles 15 or 16 is rotated. Each spindle 15 or 16 terminates in a bifurcated end within which a swing key 64, Fig. 4, is pivoted so that when a film reel 69 is engaged over the spindle the swing key 64 is automatically urged into one of three radially-diverging slots 71, 72, 73 when one of its lower comers is engaged by the core opening 70. The reels are mounted in a cartridge (18), Fig. 7 (not shown), which accommodates film having twice the width of the aperture 17 so that normally only one half of the film is in register with the aperture, the cartridge being turned over and repositioned on the spindles to view the other half of the film. The cartridge has upper and lower windows (79, 80), Fig. 8 (not shown), in registration with the respective halves of the film 74 passing over rollers (76, 77). The latter have a concave middle section (83), Fig. 9 (not shown), leaving plain end portions 81, 82 which engage the film edges.
Patent GB-1298091-A (GB)
Title: Improvements in or relating to semiconductor amplifiers
Inventor: GOORDMAN ROBERT VICTOR
IPC: H01L25/07
Filed: 1970-08-19
Abstract: 1298091 Circuit assemblies WESTERN ELECTRIC CO Inc 19 Aug 1970 [19 Aug 1969] 39837/70 Heading H1R [Also in Division H3] An amplifier (see Division H3) includes a first plurality of transistor devices 11, 12, 13 having their collector electrodes interconnected and their base electrodes interconnected, an equal plurality of transistor devices 21, 22, 23 also having their collector electrodes interconnected and their base electrodes interconnected, wherein the emitter electrode of each device in the first plurality of devices is separately connected to the emitter electrode of a respective one of the equal plurality of devices. In the construction shown the first plurality of devices 11, 12, 13 lies on one face, and the equal plurality of devices 21, 22, 23 lies on the other face, of a ceramic base-plate 40, shown for convenience as opened up over an axis 41. The respective sets of collectors are joined together by means of metallic layers 19À5, 29À5, the transistors being formed in semi-conductor members 17, 27, and their bases joined together by superimposed metallic members 18, 28. The respective emitters are connected to members 14, 15, 16 and 24, 25, 26 respectively, each of which is connected to a corresponding terminal member 34, 35, 36 and 37, 38, 39 respectively by means of corresponding resistors 31À5, 32À5, 33À5 respectively, the terminals 34, 37, and 35, 38 and also 36, 39 being joined together in pairs.
Patent GB-1534566-A (GB)
Title: Propagation of magnetic bubble lattice
IPC: G11C11/14
Filed: 1976-09-28
Abstract: 1534566 Magnetic bubble lattice propagation INTERNATIONAL BUSINESS MACHINES CORP 28 Sent 1976 [15 Dec 1975] 40120/76 Heading H3B A magnetic bubble lattice having three principle axes 14, 16, 18 is propagated along one such axis 18 by the combined effect of bubble-bubble interaction and attractive and repulsive magnetic poles established by a pattern of diamond shaped elements 22 in the presence of a rotating magnetic field.
Patent GB-1060606-A (GB)
Title: Improvements in or relating to tray devices
IPC: A47J39/02
Filed: 1963-10-11
Abstract: 1,060,606. Trays. Y. TRICAULT. Oct. 11, 1963 [Oct. 11, 1962], No. 40211/63. Heading A4A. A device for maintaining food at a desired temperature comprises a tray 7, a detachable lining 8 and a complementary member 9 fitted on the lining and defining a space to receive food, the lining having one or more upstanding rings 8c on which the rim of a plate rests to space the base of the plate from the liner. The tray has compartments 7a, 7b for other food, which may be at a different temperature, and pivoted carrying handles 11. An inverted tray 10 may be fitted over the complementary member 9 and fit back-to-back with the lower tray of a second device in a stack. The lining has handle grips 8a and an aperture 8b for insertion of a finger for removal of the plate, and the complementary member 9 has a lip 9a for detachment of the member from the lining.
Patent GB-1269302-A (GB)
Title: Rubberised bitumen composition and process for making them
IPC: C08L95/00
Filed: 1970-08-21
Abstract: 1,269,302. Bituminous composition. W. R. GRACE & CO. 21 Aug., 1970 [22 Aug., 1969], No. 40398/70. Heading C3N. A bituminous composition comprises (1) a bitumen and (2) a curing agent which is an organic amine, and 1-15 parts by weight, per 100 parts by weight of the bitumen, of a liquid halogen-terminated butadiene or a reaction product of 1-15 parts by weight of the bitumen, of the polybutadiene and the organic amine. The polybutadiene is preferably terminated with allylic bromide groups. The amine catalyst is preferably an aliphatic tertiary polyamine and amine catalysts specifically used are N,N,N<SP>1</SP>,N<SP>1</SP>,N<SP>11</SP>,N<SP>11</SP> - hexamethyl triethylene tetramine and a polyamide resin. Suitable bitumens are native asphalts, pyrogeneous asphalts and pitches, petroleum asphalts, coal tar pitch and resins derived from the cracking of naphtha to form ethylenic materials. The bitumen may be diluted with a hydrocarbon oil before mixing with the rubber, preferably in the proportion 20-50 parts by weight oil to 50-80 parts by weight bitumen. The bituminous composition of the invention may be produced by mixing the bitumen in the liquid state with the polybutadiene, and then adding the curing agent. The mixture may be heated to accelerate the curing by the curing agent whilst suitably the amount of curing agent added is less than that required to cure completely the liquid halogen-terminated polybutadiene.
Patent GB-875884-A (GB)
Title: Lattice blinds for windows, doors or the like
IPC: E06B9/165
Filed: 1958-12-15
Abstract: 875,884. Lath blinds. MULLER, H. Dec. 15, 1958, No. 40407/58. Class 20(3) The wood, plastic, steel &c. slats, Figs. 6 and 7 of a lattice roller blind are movably connected by laterally spaced links 2 hooked at their upper ends 11, and engage in recesses 3 in an adjacent slat, each link being displaceable up and down in the recess 3 and the outside of the hooked end has a rolling curve and each recess is partly closed by a projection 4 shaped so that a hook can only be inserted into a recess when the hook is at an angle approaching a right angle to the recess and is engaged therein by relative turning movement of the slats. The link 2 and projection 4 may form one piece with the slat 1 or they may be attached by welding, screwing, cementing &c. The edges 9, Fig. 6 of parts such as bridge pieces 8 in a hollow slat contact the links 2 and prevent relative lateral movement of the slats. The edges of recesses in solid slats perform the same junction and the link 2 may be inserted by pressing into previously formed slats 13 or directly into a synthetic plastic slat softened by warming. The link 2, Fig. 8, has tabs 14 which lie against the link when pressed into the slot and spread against a rib 12, Fig. 7, when the link is drawn out to a limited extent. The end slat 5, Fig. 2, has preferably flexible flanges 10 in one piece therewith or secured thereto to prevent the blind being drawn completely into the blind box.
Patent GB-1196477-A (GB)
Title: Multi-Channel Electrographic Recorders employing a Plurality of Movable Contactors
Inventor: LLOYD WILLIAM ARTHUR
IPC: G03G15/32
Filed: 1967-09-05
Abstract: 1,196,477. Recording-apparatus. VARIAN ASSOCIATES. Sept. 5, 1967 [Sept. 6, 1966; Sept. 12, 1966], No.40597/67. Heading. G1J. Electrographic recording apparatus comprises a plurality of input terminals 117 to which are applied respectively, in use, a plurality of separate signals whose amplitudes are to be recorded, an array of separate writing electrodes 106 extending laterally over a movable electrographic web 103 and a plurality of separately movable contactors 108 disposed over the array and moved simultaneously and selectively in response to the signals to cause writing potential to be applied simultaneously from a source 113 to positions corresponding to the amplitudes of the signals. The strip chart is drawn between an electrode plate 127 and the array of electrodes 106 with a slightly conductive layer contacting the plate 127 and a dielectric film adjacent the electrodes 106. A writing potential between 300 and 1, 000 volts may be used. The contactors 108 are pulled to and fro by an endless conductive cable passing over a conductive idler pulley connected to a source of writing potential and over a drive pulley driven by a reversible motor, controlled by a nullbalancing circuit to which the signal is applied at the terminals 117. The electrodes 106, may be conductors printed on a dielectric board 107 and are separately energized by the cable-driven contactors 108 of hardened steel or tungsten carbide from a voltage supply 113 though dot-dash coders 135 to distinguish the records of different signals, each applied to a different measuring circuit. Scale marks for time and "signal" co-ordinates may be applied through electrodes 137 and 136, the former controlled by a pulser 138 and the latter settable to six positions for selecting different scales. Resistors 141 enable the intensity of the scale marks to be reduced below that of the records. In a modification, Fig.4 (not shown) the cable driven contactors 108 are replaced with thin, helical electrodes formed as ridges on the surfaces of dielectric, rotatable cylinders 146.
Patent GB-1157006-A (GB)
Title: Optical Scanning Method for Copying Machines
IPC: H04N1/04
Filed: 1966-09-13
Abstract: 1,157,006. Scanning arrangements in photographic copiers. KATSURAGAWA DENKI K.K. Sept. 13, 1966 [Sept. 18, 1965], No.40762/66. Heading G2A. A method of scanning the surface 1 of an object to be copied comprises the steps of providing a fixed lens 2 parallel to, and a mirror 3 perpendicular to, the surface to be scanned, and moving the mirror in such a manner that the illuminating ray path from the object surface to the lens remains constant. In the embodiment of apparatus for performing this method shown, the mirror is moved along a line connecting the lens centre E and a point C on an extension of the surface, which is scanned by means of a slit 6 which moves across the surface in synchronization with the mirror. Light from the lens 2 is reflected by a mirror 4 through a fixed slit 7 on to a recording medium on the surface of a rotating drum 5. In another embodiment Fig. 2 (not shown), a larger mirror (3a) is provided, which mirror moves in a direction across the surface (as seen) in such a manner that the point of incidence of the illuminating ray on this mirror always lies on line E.C.
Patent GB-958409-A (GB)
Title: Manufacture of steel
Inventor: COOK LESLIE
IPC: C21C7/00
Filed: 1961-11-16
Abstract: Finishing materials are added to a molten steel bath in an aluminium or aluminium alloy container submerged below the surface of the molten metal and soluble therein. Any alloying elements in the aluminium should be soluble in the steel and the elements should be required therein.  Suitable aluminium alloys are Al-Si or Al-Si-Cu. To avoid bursting of the container when heated by immersion in the melt the container may be pierced with holes. In an example a bath of molten iron in a ladle was refined using an oxygen lance down to 0.05% C and 0.01% Mn.  Graphite and Fe-Mn in an Al container were then plunged below the metal surface.
Patent GB-869452-A (GB)
Title: Process for providing base material with a magnetizable coating
IPC: G11B5/842
Filed: 1959-12-03
Abstract: 869,452. Magnetic recording and transfer paper. NATIONAL CASH REGISTER CO. Dec. 3, 1959 [Dec. 26, 1958], No. 41073/59. Class 96. [Also in Group XXXV] A smooth-surfaced magnetic recording tape which has a base of porous material, e.g. paper, is made by applying to a non-porous film a coating comprising magnetic particles dispersed in a heat-softenable binder in a solvent, drying the coating, placing the coated side in contact with the porous base, applying heat and pressure to the uncoated side of the film to cause the binder to soften and flow into the pores, cooling the coating and stripping off the film. The magnetic particles may be less than 2Á in size and of Fe 3 O 4 , or alternatively of metal alloy, e.g. cobalt nickel alloy, steel, or mixtures thereof. The transfer film may be polyethylene-terephthalate, regenerated cellulose, vinyl chloridevinylidene chloride copolymer, polyethylene, polyvinyl alcohol, cellulose-acetate-butyrate copolymer. The binder may be styrene-butadiene copolymer, chlorinated rubber, acrylic polyester material, vinyl chloride-vinyl acetate copolymer, vinyl butyral-vinyl alcohol-vinyl acetate copolymer. The solvent may be ethyl alcohol, toluene or methylethyl ketone, and a plasticizer, for example dibutyl sebacate or castor oil may be included. The transfer film has a thickness of 0.0025-0.0075 inch, and the coating which is applied by brushing, spreading by wire or spraying has a dried thickness of 0.0003-0.0025 inch. The pressure instrument may be an iron at 250‹ F.-500‹ F. Stripes of magnetic material may be provided on a paper which has its surface coated with clay-like absorbent materials, or with microscopic pressure-rupturable capsules containing printing fluid.
Patent GB-1407043-A (GB)
Title: Method of manufacturing coated steel pipes
IPC: B29C48/151
Filed: 1972-09-05
Abstract: 1407043 Coated pipes SUMITOMO METAL INDUSTRIES Ltd 5 Sept 1972 [6 Sept 1971 18 Sept 1971] 41147/72 Heading B2E [Also in Divisions B5 and F2] A method of producing a coated steel pipe comprises applying a thermoplastic synthetic resin which has been exposed to irradiation by an electron beam of 2 to 10 M.Rad. over the outer surface of a steel pipe, which is pre-heated to a pre-determined temperature, whereby the applied coating is maintained in a sticky state, and thereafter applying to the sticky coating at least one layer of a non- irradiated synthetic resin that is of the same kind as the first applied coating. The resin may be polyolefine polymers and co-polymers e.g. polyethylene and may contain 10 to 30 parts of butyl rubber or isobutyl rubber or an epoxy resin and may be sprayed over the pre-heated steel pipe to provide the said sticky coating. In the arrangement shown steel pipes 1 are shot blasted at 2, pre-heated at 3 and passed by conveyor means 4 to a heating furnace 5 where they are heated to a predetermined temperature and thence passed to a connecting section 6 where they are connected together by auxiliary means and thence passed to a coating section 7 where adhesive irradiated resin powder in a tacky state is sprayed over the surface to form their coating 8. The pipe is then fed to an extruder 9 which may have two extruding heads (Fig. 2, not shown or a compound head, Fig. 5, not shown) for extruding on to the layer 8 a first synthetic flexible plastics material layer 14 and a second layer 19 of a rigid thermoplastics material. The pipe then passes through cooling section 21 or is allowed to cool down. The layers may be compacted on to the pipe by a series of rollers arranged around the periphery thereof (Fig. 6, not shown).
Patent GB-924793-A (GB)
Title: Improvements in or relating to waterproof baby-drawers
IPC: A41B13/04
Filed: 1960-11-30
Abstract: 924,793. Diapers. N. A. H. HEMMINGSSON. Feb. 20, 1962 [Nov. 30, 1960], No. 41196/60. Class 141. A diaper cover as in Specification 833,254 is sealed additionally along lines 24, 25 of the pockets and ventilation holes 28, 29 heat-sealed round the edges are provided.
Patent GB-1265195-A (GB)
IPC: F28D1/03
Filed: 1969-08-20
Abstract: 1,265,195. Space-heating radiators. A. KORMANN. 20 Aug., 1969 [21 Aug., 1968], No. 41444/69. Heading F4S. In a steel space heating radiator in which tubular channels for the heating fluid extend between headers 4, 5, said channels are each formed by two abutting plate members welded together, at least one of said plate members having a portion thereof forming a fin lying substantially in a plane parallel to a plane passing through the longitudinal axis of the headers. Figs. 1 to 4 show alternative forms of fin e.g. 9-15 and channel crosssection e.g. 8, 13, 16. The fins may be of sufficient length longitudinally to shroud the headers when viewing from the front and/or rear of the radiator and the headers themselves may be tubular or comprised of channel or other polygonal or flattened oval cross-section (see Figs. 7-12). Fig. 15 shows a radiator adapted for attachment to a ceiling In this form, each plate member provides only a single fin 32 or 33 which is backed by heat-insulating material 37.
Patent GB-970669-A (GB)
Title: Polymeric materials
IPC: C08G2/00
Filed: 1962-11-02
Abstract: Anhydrous trioxane is polymerized using an acid particulate heterogeneous catalyst which is (1) an oxygen-containing inorganic compound of at least one metal of Group IIa, IIIa, IIIb and IVb, the anionic portion of the compound containing oxide, silicon oxide and/or carbonates or (2) a cationic exchange material containing a phenolic, sulphonic, carboxylic, phosphorous or phosphonic acid group or (3) a mixture of (1) and (2). Specified materials include alumina, silica alumina, bona montmorillorite, or the cationic exchange resins produced by reacting phenol with formaldehyde and a sulphonic acid, by oxidising coal with nitric acid, the reaction product of caustic, 1-3-5-resorcylic acid and formaldehyde, the sulphonated products of coal, lignite and peat, and the reaction product of phenol, acrolein and the semi-amide of oxamic acid. The trioxane may be copolymerized with cyclic ethers, or with olefinic type comonomers of which hexene-1, butene-1, styrene, acrylonitrile, butyl acrylate, methyl methacrylate, methacrolein, vinyl acetate, methyl vinyl ketone, and acrylic acid are used in examples while very long lists of alternatives are given. The copolymers preferably contain at least 90% trioxane. The polymers may be end capped e.g. with acetic anhydride and dialkyl acetals.
Patent GB-1200086-A (GB)
Title: Apparatus for the continuous treatment of wool
IPC: D06B3/20
Filed: 1967-09-13
Abstract: 1,200,086. Wool treating apparatus. VEPA A.G. 13 Sept., 1967 [29 Sept., 1966], No. 41700/67. Headings DIL and DIP. Apparatus for shrinkproofing and dyeing wool comprises, in sequence, a feeding device 1, a roll padder 3 where the wool is impregnated with shrinkproofing and anti-felting liquid, at least two rinsing and neutralising baths 7 containing perforated suction drums, a further padder 9 for the application of dyeing liquor, a heat-treatment chamber 10, e.g. a J-box, two or more baths 7' having perforated suction-drums for washing out unfixed dyestuffs, auxiliary agents and for rinsing, a drying chamber 11 having three perforated suction drums and a packing or winding device 12', squeeze rolls 6, 8, 8' being provided after each impregnating device, and a common control device for all the units. A chute 5 may follow the padder 3 the wool being delivered upwardly from the lowest point of the chute to the first bath 7. In the above the wool is in the form of top slivers. It may be fed as loose fibrous stock in which case the paddles 3 and 9 are replaced by a baths containing suction drums, and the J-box is replaced by a horizontal conveyor type steamer. The shrinkproofing and anti-felting may be carried out using an alkaline hypochloride solution with a pH of 7.5-10 and an active chloride content of 1-6% by volume preferably containing 0.1 to 1% of a wetting agent. Alternatively polyamide epoxy resin solutions or ammonium peroxydisulphate may be used.
Patent GB-1452660-A (GB)
Title: Nickel-base alloys
IPC: B22F1/00
Filed: 1974-09-25
Abstract: 1452660 Ni base alloy powder GENERAL ELECTRIC CO 25 Sept 1974 [26 Sept 1973] 41711/74 Heading C7A A nickel base alloy powder of composition:- such that:- Mo+W } maximum of 3À6 at % Nb+Ta+Hf+Zr } minimum of 0À3 at % the carbide in the alloy being predominally MC type of size 0À2 to 1 micron and M 23 C 6  carbide being absent. The powder may be placed in stainless steel containers which are evacuated, sealed and extruded at 1850 to 2250‹F to produce bars. The powder may be used in other powder metallurgical processes to produce gas turbine wheels and blades in which carbide segregation to prior particle boundaries is absent and in which the Ni matrix contains in addition to borides and/or carbides only the gamma prime phase.