baber/WOPTO huggingface dataset:
Patent GB-1225823-A (GB)
IPC: G03G15/09
Filed: 1968-02-22
Abstract: 1,225,823. Electrographic printing. STANDARD TELEPHONES & CABLES Ltd. 22 Feb., 1968, No. 8738/68. Heading B6C. [Also in Division G2] An electrographic apparatus is of the kind in which a print drum or band is selectively magnetized or electrostatically and powder is applied thereto to produce a powder pattern which may be viewed or transferred to a permanent record. Powder is transferred between a powder reservoir 6 and at least one recording surface 3 by a scavenging disc 5 which removes powder from the surface 3 and a permanently magnetized or electrostatically charged applicator disc 1 partially submerged in the reservoir 6. The disc 5 is of nonmagnetic material, while the surface 48 is covered with permanently magnetized material roughened to afford keying of the powder. A stripper blade 11 removes powder from the disc 5. An erase head 16 and recording head 12 are placed between the discs 1 and 5. The disc 1 is either a permanent disc magnet or has a permanently magnetized surface 47 in the form of radial striations. The reservoir 6 may be a fluid powder bed as disclosed in Specification 1,120,900 or a powdering device as disclosed in Serial No. 53329/67. In another embodiment Fig. 2A (not shown) the discs 1 and 5 may be replaced by bands (29) and (18). The scavenging band (18) may be of permanent magnetic plastics material, e.g. polyvinylchloride loaded with barium ferrite or be provided with magnetic striations. Alternatively, a scavenging band (40), Fig. 4 (not shown), is used with an applicator roller (44).
Patent GB-1227104-A (GB)
IPC: C07C279/26
Filed: 1969-11-17
Abstract: 1,227,104. Luminescent screens. GENERAL ELECTRIC CO. 17 Nov., 1969 [5 Dec., 1968], No. 56240/69. Heading C4S. [Also in Division C3] A method of coating a fluorescent lamptube comprises making an aqueous suspension of phosphor particles, flowing same over tube surface, drying, then lehring to effect bonding of the phosphor particles to the glass, the suspension containing by weight based on the dry phosphor 0À05 to 0À3% Ba(NO 3 ) 2  and from 0À3 to 0À9% of a temporary binder mix of ammoniacal carboxymethylcellulose (CMC) and 10 to 75% polyvinylmethyl ether/maleic anhydride copolymer (PVM/MA), the aqueous suspension having a basic pH of 8 to 13, preferably 9 to 11. The phosphor may be Sn and Mn activated calcium halophosphate and after firing may be milled in an aqueous PVM/MA suspension and washed with ammoniated ethylenediamine tetraacetic acid or sulphamic acid, then size classified. Ammonium nitrate may be added to the suspension as a 15 to 25% water solution and should be in amounts 0À1 to 2À5%, preferably 0À25 to 1À0% of the dry phosphor. 10% PVM/MA and 90% CMC may be used with an upper limit of 75% of PVM/MA, preferably 50%. Binder mix concentrations based on the dry phosphor are preferably 0À4 to 0À6% e.g. 0À55% for CaHPo 4 . Coating may be by down flushing and lehring at 625 to 650 C.
Patent GB-1227445-A (GB)
IPC: F16L9/14
Filed: 1968-05-21
Abstract: 1,227,445. Pitch fibre pipes. REED PAPER GROUP Ltd. 16 May, 1969 [21 May, 1968], No. 24203/68. Heading F2P. A method of making pitch fibre pipes comprises forming a web from a slurry of a furnish comprising a fibrous material, e.g. waste newsprint or asbestos and a filler, e.g. pelleted pitch and/or a diatomaceous earth, winding the web on to a mandrel to form a pipe, drying the pipe, and impregnating it with pitch, the furnish including a proportion of fly ash as the filler. The percentage of fly ash is approximately 7%, preferably less than 10% but within the range of 5-45%, by weight. As described, waste newsprint, in the presence of a filler, is beaten in water and broken down into a thin water slurry of separated fibres, the resulting stock being fed to a vat machine where a horizontal, rotating, drum with a foraminous surface, partially immersed in the stock, picks up a web of fibres and filler. The web, carried to the top of the drum, is transferred to an endless moving felt and passed over a number of vacuum bases before being picked off the felt and reeled on to a cylindrical steel mandrel against two backing rolls to form a wet pipe, means being provided to sense the wall thickness of the wet pipe and, at the required wall thickness, spray water on to the drum to interrupt the supply of web. The pipe is then dried in an oven, e.g. for six hours, until the moisture content is 1 % or less, whereupon the pipe is mounted in a cradle and impregnated with hot pitch using alternate cycles of vacuum and atmospheric pressure. The pipe is finally quenched in cold water to obtain a glossy finish and then machined to form jointing spigots.
Patent GB-1229023-A (GB)
IPC: C09B11/26
Filed: 1968-04-23
Abstract: 1,229,023. Phenyl-heteryl methane dyestuffs. FARBENFABRIKEN BAYER A.G. 23 April, 1968 [24 April, 1967], No. 19114/68. Heading D1B. [Also in Division C4] Dyestuffs free from sulphonic and carboxylic acid groups of the general formula: wherein B is an aminoaryl radical of the formula: or an indole radical of the formula: wherein R is H, alkyl, cycloalkyl or aralkyl, Z represents the residual members of a 5- or 6-membered heterocyclic ring which may contain a further fused sin-membered carbocyclic ring, R 1  is H, alkyl, aralkyl, cycloalkyl, or aryl, R 2  is alkyl, cycloalkyl or aralkyl and when R 1  and R 2  are alkyl radicals they may be fused to form a ring having further hetero atoms, R 3  is H, alkyl or aryl, carboxylic acid ester, optionally N-substituted carbonamide or alkoxy, R 4  is H, alkyl, aralkyl, cycloalkyl, or aryl and X is an anion are used to dye substrates eg. acid modified polyesters and polymers or copolymers of acrylonitrile. Grey, green, blue and violet shades are obtained.
Patent GB-1233283-A (GB)
IPC: C07F9/54
Filed: 1969-04-29
Abstract: 1,233,283. Glass melting furnaces; hollowplate heat exchange elements. LIBBEYOWENS-FORD CO. 29 April, 1969, No. 21677/69. Headings F4B and F4S. In a glass melting furnace having an upper side wall positioned outwardly and supported independently from a lower side wall, an L- shaped heat exchanger 15 is located between the said walls such that one leg of the said heat exchanger extends along the top of said lower wall and the other leg extends upwardly and is spaced inwardly from said inner surface of said upper wall, sealing means 53 closing the space between said heat exchanger and upper wall. In operation cooling water flows through the heat exchanger 15, said heat exchanger comprising a metal casing made up of three integral elongated parallel sections a, b and c, arranged side-by-side in a common plane and an integral raised section a disposed above and parallel with section a, said sections being interconnected to provide a continuous, serpentine path for the passage of the cooling water. As shown in Fig. 4, the heat exchanger 15 and the upper wall are independently supported from the lower wall such that on erosion of the lower wall, the heat exchanger can be moved outwardly to maintain its flush relation with inner wall face by repositioning nuts 49 and 50 with respect to a supporting bracket plate 48.
Patent GB-1250253-A (GB)
IPC: B29D30/06
Filed: 1969-07-15
Abstract: 1,250,253. Tyre conditioning. GOODYEAR TIRE & RUBBER CO. 15 July, 1969 [1 Aug., 1968], No. 35493/69. Heading B7C. A method of conditioning pneumatic tyres so as to render their properties e.g. structural resistance to radial and axial forces, uniform, in which immediately following a tyre's removal from its vulcanizing mould the tyre is inflated and while still hot a load is applied to a location on the exterior of the tyre and relative movement caused between the tyre and the said location. This conditioning may be carried out on apparatus A which includes a cylindrical load applying shaft 14 rotatably driven by a belt 16 and electric motor 19 and two assemblies 20 each rotatably carrying a tyre mounting rim 21 and being pivoted on pivot 22 to the base 10 of the apparatus. One assembly 20 is pivoted at its upper end to the piston rod 61 of a double acting piston and cylinder device while the other assembly is pivoted to the cylinder 60 of the device. Each rim 21 is mounted on a fixed axle 41 having a central passage 52 extending therethrough for carrying air from air pressure line 57 to inflate a tyre B mounted on the rim. In use, the tyres B are fitted on to rims 21 while the rod 61 is in its extended position, after which the rod 61 is contracted thereby forcing both tyres against the shaft 14 and the shaft is rotated thereby rotating both tyres. In modifications the load may be applied radially, axially or in a direction having both axial and radial components; the shaft may be eliminated and the load applied by one tyre rolling against another tyre or some wall, floor, endless belt, sheet or web; the tyres may be rotated by a motor rather than the shaft; or a plurality of shafts may be positioned arcuately around the tyre. The piston and cylinder device could be replaced by a screw pivoted to one assembly and rotatably connected to a nut pivoted to the other assembly. The tyre may be inflated and then sealed prior to conditioning but preferably the pressure is maintained constant throughout conditioning by means of a pressure regulator 58.
Patent GB-1252973-A (GB)
IPC: H01L21/00
Filed: 1969-02-14
Abstract: 1,252,973. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORP. 14 Feb., 1969 [29 Feb., 1968], No. 8045/69. Heading H1K. All or part of an epitaxial layer of semiconductor material contains deathnium centres consisting of sub-micron sized particles (down to atomic sizes) of one of silicon nitride, silicon carbide, and tin. The impurity may be incorporated by a vapour phase reaction during the growth of a silicon layer. The epitaxial layer may have a part or parts free of deathnium centres and/or a part in which the concentration of centres varies with distance from the boundary of the layer. The centres do not introduce gross structural defects.
Patent GB-1258143-A (GB)
IPC: B22C1/18
Filed: 1969-01-16
Abstract: 1,258,143. Self-setting foundry sand mix. INSTYTUT ODLEWNICTWA. 16 Jan., 1969 [26 Jan., 1968], No. 2616/69. Heading C3N. A method of manufacturing a fluidized selfsetting sandmix comprises mixing together sand, water glass as a binding agent, metallurgical slag as a setting agent, water, and a foaming agent of the formula wherein R is alkyl or alkenyl; n is an integer from 1 to 5; and M is an inorganic or organic cation. A preferred foaming agent is the sodium salt of a dibutyl naphthylsulphonic acid. The metallurgical slag may contain bicalcium silicate. The foaming agent is preferably added to the sandmix in an amount 0À05-0À10 parts by weight per 100 parts by weight of quartz sand.
Patent GB-1259343-A (GB)
IPC: H01H71/00
Filed: 1969-02-04
Abstract: 1,259,343. Switchboards; automatic circuitbreakers. SYSTEMS ELECTRONICS Inc. 4 Feb., 1969 [5 Feb., 1968], No. 6117/69. Heading H1N. A power supply unit, e.g. for laboratory use, includes an overload-responsive circuit-breaker, means 20, 22, 24 for varying the output voltage and/or current and a pin tumbler lock 38 whose plug 40 is coupled to a reset lever of the circuit-breaker so that the circuit-breaker can only be reset by using a key. The circuitbreaker may be of the trip-free type with a lever which is moved to the " off " position to reset the circuit-breaker mechanism after tripping, the contacts being re-closed by subsequent movement of the lever to the " on " position. The circuit-breaker may be a single-pole unit or two single-pole units coupled together. Socket outlets 26, 28, 30, 32, 34 and an indicator light 36 may be provided.
Patent GB-1259449-A (GB)
IPC: G06C15/02
Filed: 1970-07-02
Abstract: 1,259,449. Ten key calculators. BURROUGHS CORP. 2 July, 1970, No. 32273/70. Heading G4B. A ten key calculator has additionally a "¢" key 18, Fig. 2, to represent ¢ new penny in British decimal currency calculations, the arrangement being such that when key 18 is not depressed the associated column in pin carriage 70 is automatically zero-indexed and skipped on depression of any control key, whereas when key 18 is depressed, 5 is registered in the associated pin carriage column and actuation of a control key causes normal escapement of the carriage. Both "¢" key 18 and "5" key 10 are coupled to pin-setting member 26 which sets a 5 in the lowest order pin carriage column on depression of key 18 and in the appropriate column on depression of key 10. Depression of key 18 causes lowering of a pivoted locking member 32 to engage keyboard frame 40 by means of its hook 36 and at the same time to mobilize a further locking member 58, Fig. 3, to prevent movement of a hammer 48. Normally hammer 48 is held by a locking member 44 on drive shaft 46 until an operating control key is depressed whereupon hammer 48 is freed and causes zero bar 42, Fig. 2, to be actuated via an arm (54), Fig. 5 (not shown). This action automatically zero indexes the ¢ new penny column unless key 18 is depressed when, as above, hammer 48 is immobilized. A further locking member 62 and associated feeder 60 restrain hammer 48 when necessary during clearing of the pin carriage and the hammer is restored by co-operation of a roller 66 on the carriage with part (68), Fig. 6 (not shown), of the hammer. Locking member 32 of key 18 is released on actuation of any control operation other than a repeat operation.
Patent GB-1264411-A (GB)
IPC: B32B17/06
Filed: 1969-05-30
Abstract: 1,264,411. Glass laminates. CORNING GLASS WORKS. 30 May, 1969 [6 June, 1968], No. 27409/69. Heading C1M. A glass, glass-ceramic or glass and glassceramic laminate formed at elevated temperature (e.g. below 1325 C.) comprises a tensilelystressed core portion and at least one compressively-stressed adhered layer fused to the core, wherein the thermal expansion coefficient of the adhered layer(s) is at least 15 x 10<SP>-7</SP>/C. loss than that of the core at the setting point of the softest glass in the laminate (at least 5 x 10<SP>-7</SP>/C. when the laminate is all glass-ceramic), the viscosity of the core being 1-6 times that of the adhered layer(s) at said elevated temperature. Preferably, the ratio of the core thickness to the total thickness of adhered layers is 10-30:1. Numerous examples are given of suitable glasses or devitrifiable glasses that may be employed. The absolute viscosity of the core at the elevated forming temperature is preferably less than 250,000 poises. The laminate may be in sheet, rod, tube or sphere form. Laminated sheets may be re-shaped and cut to size and shape required. Cups are made in the examples by sagging the laminate into a mould and trimming the edges.
Patent GB-1264834-A (GB)
IPC: H01L31/08
Filed: 1969-04-11
Abstract: 1,264,834. Electrophotographic plate. VARIAN ASSOCIATES. 11 April, 1969 [15 April, 1968], No. 18686/69. Heading H1K. [Also in Divisions C1 and G2] An electrophotographic plate is made by forming on a substrate a stratum including photo-conductive crystals of the sulphides, tellurides, selenides or sulpho-selenides of zinc or cadmium mixed with 10 to 45 wt. per cent of glass particles and a solvent for the crystals, firing the substrate to melt at least a portion of the solvent which dissolves at least a portion of the crystals while simultaneously melting the glass particles to coat the crystals interstitially, the dissolved crystals subsequently recrystallizing and establishing conductive bridges between the photo-conductive crystals, incorporating in the recrystallized dissolved crystals activator proportions' of copper, silver or a halide and lowering the temperature of the substrate to cause the glass to solidify. In an embodiment the plate is made by adding a mixture of CdS, a proprietary lead sealing glass, CuCl 2 .H 2 O and CdCl 2 .5H 2 O to alcohol, adding the alcoholic suspension to a mixture of ethyl alcohol and xylene and grinding the slurry. The ground slurry is coated on conductively coated glass and fired in air at 600‹ C. The element may be used to record X-ray and neutron images in which case the conductive coating on the glass substrate need be transparent only to the imaging rays.
Patent GB-1264916-A (GB)
IPC: D06L4/17
Filed: 1970-01-06
Abstract: 1,264,916. Textile scouring process. ESSO RESEARCH & ENG. CO. 17 Dec., 1970 [6 Jan., 1970], No. 591/70. Heading DIP. A process of scouring fabrics of both natural and synthetic origin comprises treating the fabrics with a water-in-oil emulsion based on an organic solvent not miscible with -water. The water content of the emulsion may be at least 50% by weight and preferably 70 to 90%. The emulsifier or emulsifier system is present with an HLB value of 3 to 7. The amount of emulsifier, which may be either non-ionic or ionic, present is 1 to 5% by weight of the emulsion. The emulsion is conveniently prepared by adding slowly the aqueous phase to the solvent plus emulsifier system while stirring. Emulsion viscosities with the range of 100 to 300 CPS (at 25‹C) are preferred for ease of application. The solvent may be petroleum hydrocarbons, oxygenated solvents and chlorinated hydrocarbons. Specific examples are white spirit and petroleum fractions distilling between 150 and 250‹C. The continuous phase of the emulsion is the organic solvent. The water phase may also carry agent used for other textile processes, such as enzymes for desizing, bleaching agents, dyes and finishes.
Patent GB-1265296-A (GB)
IPC: E05D11/10
Filed: 1970-07-09
Abstract: 1,265,296. Spring hinge and door check. ATWOOD VACUUM MACHINE CO. 9 July, 1970, No. 33325/70. Headings E2F and E2M. In a hinged assembly between members 1 and 2, e.g. a car door hinge, a torsion bar 8 is secured to the member 2, the bar having a lateral arm 13 and a detent 14 on the end thereof, the other member 1 mounting a surface 24 so arranged that, during closing movement, it only contacts the detent towards the closed position and then increases the tension in the spring to cushion the closing movement and initially assist a subsequent opening movement. As shown, the surface 24 may be a scalloped roller 24 or a cam surface, in which case the detent may mount a roller as a cam follower. The torsion bar may be S-shaped or C-shaped. Additional rollers 18 and 19 mounted on the member 1 engage the detent 14 in the half open and fully open position to hold the hinge, the roller 24 may engage a second detent 12 provided at the, other end of the torsion bar. The roller 24 may be of a resilient plastic material and may have a thin, metallic, corrugated, peripheral ring.
Patent GB-1266213-A (GB)
IPC: C07C67/00
Filed: 1969-10-24
Abstract: 1,266,213. 11-Cyanoundecanoic acid; 12- amino-dodecanoic acid. BP. CHEMICALS Ltd. 29 Sept., 1970 [24 Oct., 1969], No. 52195/69. Heading C2C. A purified derivative of 11-cyanoundecanoic acid is obtained in a process which comprises dissolving crude 11-cyanoundecanoic acid in a solvent containing ammonia and crystallizing out the ammonium salt so formed. The crude 11-cyanoundecanoic acid used may be obtained by the pyrolysis of 1,1<SP>1</SP>-diperoxydicyclohexylamine preferably after the removal therefrom of cyclohexanone. When aqueous ammonia is employed, the crude 11-cyanoundecanoic acid may first be washed with an immiscible non- polar organic solvent. The ammonium 11- cyanoundecanoate may be converted to the free acid by acidification or it may be hydrogenated to give 12-amino dodecanoic acid directly.
Patent GB-1266635-A (GB)
IPC: C08F214/08
Filed: 1969-12-24
Abstract: 1,266,635. Vinyl chloride-vinylidene chloride copolymer. KUREHA KAGAKU KOGYO K.K. 24 Dec., 1969 [28 Dec., 1968], No. 62821/69. Heading C3P. Vinyl and vinylidene chlorides are copolymerized in aqueous suspension using a peroxydicarbonate initiator and when the desired conversion is reached there is added an alkyl ester of thiodipropionic acid optionally with a t-butyl-4-hydroxy anisole. The preferred esters are dilauryl and distearyl thiodipropionates. In examples, the temperature is gradually raised during the polymerization. The products are plasticized and converted to films for wrapping.
Patent GB-1266669-A (GB)
IPC: C07C7/17
Filed: 1970-09-24
Abstract: 1,266,669. Cyclopentadiene adducts. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 24 Sept., 1970 [26 Sept., 1969], No. 45527/70. Heading C2C. [Also in Division C5] Cyclopentadiene and/or alkylcyclopentadienes are removed from mixtures thereof with other hydrocarbons by contact in the liquid phase with aqueous solutions of 1,2-unsaturated carboxylic acids to form Diels-Alder adducts, which are removed from the hydrocarbon in an aqueous layer. The acidic reagent may be acrylic, methacrylic, itaconic citraconic, mesaconic, fumaric or, preferably, maleic acid (or anhydride). The example describes the formation of bicyclo-[2,2<SP>1</SP>]-5-heptene-2,3-dicarboxylic acid.
Patent GB-1288037-A (GB)
IPC: B22D17/32
Filed: 1968-10-23
Abstract: 1288037 Casting-machines BRITISH NON- FERROUS METALS RESEARCH ASSOCIATION 22 Oct 1969 [23 Oct 1968] 50266/68 Heading B3F [Also in Division B5] A pressure die-casting machine or a gravitycasting machine has means for determining, in accordance with the temperature at a point in the casting, in the slug or in the runners or the die adjacent to the casting, the moment of automatic opening of the dies. When the temperature has fallen to a certain level, a signal derived from a sensor is used to initiate a die-opening sequence. At least one sensor such as a thermocouple 14 is placed near the cavity surface or in an insert protruding into the cavity and operates a switch 14/1. There may be a sensor in the shot sleeve of a cold-chamber machine. Opening of the dies 10 is effected by an hydraulic ram 11 operable by way of an electrical supply 30 (when the contact 15/1 of a timer 15 is closed) controlled by a manual switch 18 or temperature-controlled contacts 22/2, 24/2 actuated by relays 22, 24. When the temperature of sensor 14 first rises above the required temperature, contact 22/2 is opened and contact 24/2 closed and it is not until the sensor temperature falls again that contact 22/2 closes to complete the circuit. The timer 15 is short circuited or set to ensure closure of its contact 15/1 to render the control temperature-dependent. When the dies open, a contact 35 is closed to re-set the circuit for another cycle.
Patent GB-1297573-A (GB)
IPC: H05G1/02
Filed: 1970-07-08
Abstract: 1297573 X-ray apparatus COMPAGNIE GENERALE DE RADIOLOGIE 8 July 1970 [16 July 1969] 33108/70 Heading H5R An arrangement for radiological examination, particularly of the head, permits adjustment of the direction of the X-ray beam RR1 from a source 2 to a detector 3 while ensuring its continued intersection with a desired point O at which the object for examination is located. The source and detector are mounted at opposite ends of an arm 1 which is rotatable about a shaft 4 mounted in a gimbal 5 rotatable about shafts 6 which coincide with the axis RR 1 , the intersection of the axes of shafts 4 and 6 defining the point of examination O. The patient P is mounted on a seat or table 7 which is supported from a member 11, and is both rotatable about axis 8, and displaceable in the dierctions f 1 f 2  - and-along member 11- in the direction f 3 f 4 , to locate the desired portion of the patient at the point O. The bearings 10 for shaft 6, and the patient support member 11, are both supported from a rotatable ring-shaped member 9, whereby the entire unit together with the patient may be rotated in a vertical plane. The detector 3 may be an X-ray image intensifier coupled to a television receiver, or a radiographic plate.