baber/WOPTO huggingface dataset:
Patent GB-576509-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F04B9/14
Filed: 1944-03-03
Abstract: 576,509. Reciprocating pumps. BOOTH, D. G., and PLESSEY CO., Ltd. March 3, 1944, No. 3982. [Class 102 (i)] In a double-acting reciprocating pump of the type having low and high pressure conduits 14, 15, 18, 21 and inlet and discharge valves 16, 16a, 17, 17a, 19, 19a, 20, 20a at both ends of two or moie cylinders 2, 3, the ends of the cylinders are connected by by-pass conduits 23, 24 containing by-pass valves' 25, 25a which are subjected to the delivery pressure of the pump against the action of springs 25e the loading of which determines the pressures at which the by-pass valves open. The pistons 4, 5 are reciprocated manually in opposite directions by means of a common handle 12 and a pinion 10 engaging toothed racks 8, 9 on the piston rods 6, 7, whilst the springs 25e are accommodated in chambers 26, 26a on the low pressure side of the pump.
Patent GB-565374-A (GB)
Title: Cathode-ray tube plate assemblies
IPC: H01J29/82
Filed: 1943-03-12
Abstract: 565,374. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. March 12, 1943, No. 4050. Convention date, July 8, 1942. [Class 39 (i)] Each deflecting plate 1, 2 is supported by a pair of rods 6, 7. The eight rods pass through two annular mica discs 3, 4 and are secured thereto by eyelets 5. One pair of plates 2 is disposed between the discs and their support rods pass through apertures 10 in the flared part of the plates. The discs have apertures to take thin strips of mica, or mica and steel, which engage the envelope for centring purposes. Specification 513,640 is referred to.
Patent GB-946036-A (GB)
Title: Alkylthio steroids and processes for their manufacture
IPC: C07J1/00
Filed: 1962-02-02
Abstract: The invention comprises steroids of the general formula: <FORM:0946036/C2/1> wherein R1 represents hydrogen or acyl, R2 represents hydrogen or methyl, R3 represents C1 to C5 alkyl, X represents H,H; H,b -OH or =O, Y represents hydrogen or fluorine, Z represents H,H or =CH2, and R2, X, Y and Z do not simultaneously represent hydrogen, and the corresponding 1,2-dehydro compounds, and the preparation thereof by reacting steroids of the general formula: <FORM:0946036/C2/2> wherein R1, R2, X, Y and Z have the above significance, with the required alkyl mercaptan, optionally dehydrogenating the product either chemically or microbiologically to form the 1,2-dehydro-steroids and, if desired, saponifying the 17-ester group or esterifying the 17-hydroxy group in the D 4- or D 1,4-product obtained. Suitable chemical dehydrogenating reagents are selenium dioxide and 2,3-dichloro-5,6-dicyanobenzoquinone, and suitable dehydrogenating micro-organisms are Bacillus sphaericus var. fusiformis, Corynebacterium simplex and Fusarium solani.  The esterification may be carried out with carboxylic acids including halo-, amino-and alkylamino-substituted carboxylic acids and dicarboxylic acids, and with phosphoric and sulphuric acids.
Patent GB-1515031-A (GB)
Title: Semiconductor devices
IPC: H01L21/308
Filed: 1976-02-03
Abstract: 1515031 Electrolytic etching of silicon INTERNATIONAL BUSINESS MACHINES CORP 3 Feb 1976 [14 April 1975] 4111/76 Heading C7B [Also in Division H1] A hole is made in a monocrystalline silicon body by providing masking with aligned apertures on parallel opposed faces of the body, providing a conductor in contact with the body through one of the openings and using this as anode in an anodic treatment to convert the entire region between the apertures to porous silicon which is then etched out to leave a hole. Typically a plurality of holes are simultaneously formed in a 100 oriented wafer which may have integrated circuitry formed on one or both faces. The masking may consist of silicon dioxide or nitride with an optical overlayer of chromium, or of silicon oxynitride or nitride-onoxide. After photoetching to form the apertures heavily doped surface regions may be formed below the apertures on one or both faces by impurity diffusion or implantation of helium ions or protons and a chromium anode layer deposited on one face. After anodic treatment in a 1:2 mixture of 49% hydrofluoric acid and distilled water the anode is removed and the porous silicon etched out.
Patent GB-1375703-A (GB)
IPC: B65B35/38
Filed: 1972-05-04
Abstract: 1375703 Packaging machines/conveyers BAKER PERKINS DEVELOPMENTS Ltd 4 May 1972 [8 Feb 1971] 4189/71 Headings B8C and B8A In a packaging apparatus, filled bags 2 in a group are mutually overlapped to fit in a carton 6 and are transferred to the carton by suction heads 20 carried by manifolds 21. The bags 2 are supplied to pockets (14, Fig. 2), arranged in sawtooth fashion across a conveyer 1, so that the bags are inclined with the lower edge of one bag being positioned beneath the upper end of the adjacent bag. The bags are deflected into the pockets (14) by pivotal arms 11 mounted above a conveyer 4 delivering the bags to the conveyer 1 from a bagging machine. At the downstream end of the conveyer 1, two rows of bags are picked up by the suction heads 20 and placed in the carton 6 which is carried by a conveyer 8. The manifolds 22 are pivoted to pivotal arms (26, 27, Fig. 2) which are of unequal lengths so that the spacing between the gripper rows is greater above the conveyer 1 than above the carton 6. Thus the bags in each group placed in the carton are overlapped in two directions.
Patent GB-1401291-A (GB)
Title: High temperature apparatus
IPC: H01J37/16
Filed: 1972-01-28
Abstract: 1401291 Plasma devices UNITED STATES BORAX & CHEMICAL CORP 25 Oct 1972 [28 Jan 1972] 4197/72 Addition to 1288914 Heading H5H A plasma device for carrying out chemical reactions comprise a tube 10 and an induction coil 13 situated in the coolant flow in a chamber 14 defined by the tubes 10 and a jacket 11. Combined electrical and coolant connections 12 are included. The end cap 30 seals one end of chamber 14 and acts as a gas inlet having one or more gas supply pipe(s) and tangential opening(s) 32. The end cap 20 seals the other end and acts as the reactant feed device having an annular channel 23 and feed inlets 24 to project material upstream and at an angle to the axis of the tube. The tube may be quartz and the jacket of quartz, nylon, polytetrafluroethylene or borosilicate glass. The end caps are of non-brittle non ferromagnetic material, e.g. brass.
Patent GB-1069033-A (GB)
Title: Improvements in or relating to gas turbine jet propulsion engines
Inventor: HEWSON COLIN TAYLOR
IPC: F02K3/11
Filed: 1965-01-30
Abstract: 1,069,033. V.T.O.L. aircraft power plant. ROLLS-ROYCE Ltd. Jan. 7, 1966 [Jan. 30, 1965], No. 4204/65. Heading B7G. [Also in Division F1] In an aircraft power plant of the by-pass gas turbine type a H.P. compressor system comprises H.P. compressor 300, combustion equipment 301, H.P. turbine 302 driving compressor 300, a second compressor which passes part of its flow to compressor 300 and part to a by-pass duct 306, the air from which mixes with exhaust gases from equipment 301 to drive a second turbine 305 which drives compressor 304 and also a L.P. compressor 309. The mixed gases pass through a pair of swivelling nozzles 308 and air from compressor 309 passes to a forward pair of swivelling nozzles 310.
Patent GB-364384-A (GB)
Title: Improvements relating to ring spinning and analogous machines
IPC: D01H1/36
Filed: 1931-02-11
Abstract: 364,384. Building-motions for ring spinning or like frames. SMITH, W. PRINCE-, Hillbrook, and WATERHOUSE, D., Ridgemont, Utley, both in Keighley, Yorkshire. Feb. 11, 1931, No. 4295. [Class 120 (ii).] In ring spinning or like frames the spindle rail, and the ring rail and its operating mechanism are lowered together at a certain point in the building without any interruption of the ordinary motions of the ring rail, so that the balloon is shortened, as usual, during the initial movements of the ring rail and is thereafter maintained at that length thereby enabling larger packages in either cop, tube, or spool formation to be produced. As shown, applied to a Scaife's motion, the spindle rail 1 is carried by pokers 16 connected to chains 18 passing around scrolls 19 and attached to a collar 18a on a stationary stud 22. The scrolls 19 are mounted on a shaft 20, which is rotated from the screw shaft 25b of the building-motion, and are so shaped that initially their rotation has no effect upon the bight of the chains 18 but, after a period, they so alter the effective length of the chains that the spindle rail is gradually lowered. The plate 13, which carries the guide pulleys 12 of the lifter chains 10 connecting the ring-rail pokers 7 with the chain rod 11, is connected to the spindle rail 1 by brackets 14 so that, as the spindle rail is lowered the ring rail is also lowered but the ordinary movements for building continue to be imparted, the face 23a of the rod and iron being shaped to permit the vertical movement of the chain rod 11 while imparting its normal longitudinal movement.
Patent GB-284479-A (GB)
Title: Improvements in moulding concrete under vibration, and in means therefor
IPC: B28B1/087
Filed: 1927-02-16
Abstract: 284,479. Coveney, A. W. Feb. 16, 1927. Shaking and jigging machines.-Concrete is corsolidated within moulds by placing them upon a truck furnished with wheels running on rails, the wheel axles being provided with cogged wheels, cams &c. to impart vibrating movement. As shown in Fig. 1, the moulds A<1> are supported upon a platform A furnished with pins a' engaging holes b in a carriage B which is provided with wheels e mounted on axles c furnished with wheels d having cogs d<1> adapted to engage rollers g in brackets f depending from the platform A. Fig. 5 shows a modification in which the axles c carry snail cams h adapted to engage a rod i depending from the platform A. Fig. 6 shows a further modification in which the moulds are supported by a member k which is rocked by a bar m depending into the path of the cogs d<1> and maintained in engagement therewith by counterweights or springs. The cams &c. may be connected to the wheel axles through clutches &c. so as to be idle on the return movement. Lateral movement may be imparted to the moulds by side cogs. According to the Provisional Specification, the wheels or rails may be cogged.
Patent GB-199072-A (GB)
Title: Means for controlling and regulating or varying the supply of steam for use with water gas generators, applicable to other purposes
IPC: C10J3/80
Filed: 1922-02-15
Abstract: 199,072. Moore, S., and Hunter, C. Feb. 15, 1922. Float valves for controlling the supply of steam or air to water gas generators are actuated hydraulically so as to decrease the air or steam supply at first slowly and afterwards at a greater rate. The steam or air valve A is provided with a counterbalanced lever B having a series of holes C<2> by which it is adjustably connected by a link to a rod D guided by rollers E and adjustably connected to a float J. The float comprises a bell with a buoyant chamber and has a central screwed sleeve whereby it is connected to the rod and also to the spindle K of a secondary valve P working in an extension 0. The float works freely in a cylinder to which liquid is constantly supplied through an inlet L and discharged through a main valve controlled outlet M and auxiliary valve controlled outlet Q. When the steam supply is turned on the valve controlling the main outlet is closed either independently or through interconnection with the primary air or steam supply valves. As the outlet Q is smaller than the inlet L water rises in the cylinder raising the float and gradually closing the steam valve and at the same time lifting the secondary valve P to close the outlet Q. When the secondary outlet is closed the water rises at a greater rate and the steam valve is consequently closed more quickly.
Patent GB-607996-A (GB)
Title: Improvements in or relating to lubricating compositions
Filed: 1946-02-13
Abstract: Extreme pressure properties are conferred on lubricating oils by adding to them a small proportion of di-(morpholyl-N-thiocarbamyl) trisulphide.  In an example, a mineral lubricating oil composition is described containing 0.5 per cent of di-(morpholyl-N-thiocarbamyl) trisulphide.  According to the Provisional Specification, thiuram polysulphides other than di-(morpholyl-N-thiocarbamyl) trisulphide may be employed, for example thiuram hexasulphide.
Patent GB-985406-A (GB)
Title: A capacitor
IPC: H01G/
Filed: 1963-02-04
Abstract: 985,406. Capacitors. TELEFONAKTIEBOLAGET L. M. ERICSSON. Feb. 4, 1963 [Feb. 2, 1962], No. 4542/63. Heading H1M. A self-heating metallized paper or foil roll capacitor element 1 is embedded in a block 2 of thermosetting e.g. epoxy or polyester resins, with terminals 5, 6 connected by wires 7, and to the electrodes. Discs 3, 4 of a substance e.g. waxed card or polypropylene of poor adherence to the resin are enclosed in the block at opposite ends of the element, with holes through which the connecting wires pass. On internal gas formation due to overheating, the pressure fractures the block along plane AA and/or AB to rupture the connecting wires and disconnect the capacitor.
Patent GB-1004347-A (GB)
Title: Improved methods for the manufacture of brushes
IPC: A46B3/12
Filed: 1962-10-19
Abstract: 1,004,347. Brushes. G. SHAW. Oct. 19, 1962 [Oct. 23, 1961; Aug. 15, 1962], No. 4949/65. Divided out of 1,004,346. Heading A4K. The stock and optionally also the handle of a brush are formed by melting the ends of thermoplastic bristles into a mould 63 in a vacuum or an inert atmosphere to avoid discoloration or degradation of the melted material. A screw 61 may be used to form a screw-thread in stock 60 for the attachment of a handle which may extend into the bristles at 62. Materials suitable for the bristles are polymers of hexamethylene diamine and sebacic acid and polycaprolactum. A different thermoplastic material may be added to the mould separately to mix with the melted bristle material so that less of the latter is required.
Patent GB-490826-A (GB)
Title: Improvements in and relating to electrical pick-ups
IPC: H04R21/04
Filed: 1937-02-18
Abstract: 490,826. Pick-up mountings and tool arms. SOUKUP, J., ZERNER, F., HOLMES, A., and WARMAN, W. H. Feb. 18, 1937, No. 5014/38. Divided application. [Class 40 (ii)] [Also in Group XXXIX] In an electric pick-up the vibrations of the needle produced by a sound record are transmitted to the oscillating part of a device for transforming mechanical vibrations into electrical variations by a resonant body comprising a substantially flat plate-like member of an elastic material, such as wood. The needle 8 is secured to the flat board 1 divided by a slot 9 into two parts and the connecting portion of wood is reinforced by a metal pin 10. A supporting pad 11 of a resilient material, such as rubber, bridges the slot 9 and may extend beyond the edge of the smaller portion of the board. A recessed metal member 3 secured to the plate carries a carbon electrode 2 disposed opposite a second electrode 6 mounted in a member 4 carried by a shaft on which the board 1 is pivotally mounted. The chamber for the granules 7 is formed by the electrodes 2, 6 and by the felt ring 5 seated in recesses in the members 3, 4. The position of the pick-up relative to the record is controlled by a threearmed lever having an arm 17 associated with a cam 22 and arranged so that normally the cranked end 24, 25 of the second arm 18 supports the pick-up with the needle clear of the record. When the cam 22 is rotated, the cranked end of the arm 18 allows the board 1 to drop so that the needle engages the record, and further rotation of the cam causes a spring 28 carried by the end of the arm 19 to engage the top surface of the board and to apply the needle to the record with adequate pressure. The pick-up unit is rotatable and slidable on a sleeve 12 and is resiliently held against a flange 13 on the sleeve by a spring 14 which, at its opposite end, abuts a collar 15. The threearmed lever is secured to a collar 16 rotatable on the sleeve 12 and connected by a spring 21 to a collar fixed to the sleeve. Axial movement of the sleeve 12 to a desired position on the shaft 29 is permitted by means of a pin 30 and slot 31.
Patent GB-546766-A (GB)
Title: Holder or mount device for textile thread cops and like thread packages
IPC: B65H49/06
Filed: 1941-04-18
Abstract: 546,766. Mounting devices for thread packages. COATS, Ltd., J. & P., and SUTTON, W. H. April 18, 1941, No. 5023. [Class 120 (iii)] [Also in Group XVII] A holder or mount for an annular thread package A having a hollow core comprises a base member 10 and a post 12 upstanding centrally from the base and adapted for reception of the cop or package, the base member 10 presenting a convexly curved under surface 10a and a concave upper surface which is engageable by the external peripheral portion only of the lower end of the package. The post 12 may project from a disc 11 of wood or other light material having a spigot 13 projecting downwardly into a recess 10b in the heavy metal base 10. The upper surface 11a of the disc 11 is concave so that only the external periphery of the lower end of the package A rests thereon.
Patent GB-926065-A (GB)
Title: Improvements in shielded electric cables
IPC: H01B9/02
Filed: 1961-02-10
Abstract: 926,065. Cables. ANACONDA WIRE & CABLE CO. Feb. 10, 1961 [March 30, 1960], No. 5032/61. Class 36. In an electric cable comprising a conductor, an homogeneous insulation surrounding the conductor, and a structurally reinforced vulcanized semi-conducting tape bonded to and completely covering the outer surface of the insulation, the semi-conducting compound used in the tape is made to have a higher tensile strength than has the insulation so that the semi-conducting tape may be completely stripped from the insulation, e.g. during jointing. In the cable shown, a semi-conductive layer 13 is also provided between the stranded copper conductor 11 and the insulation 14. Over the insulation is bonded the semi-conducting tape 15 which is in turn surrounded by a metal taping 19 of copper, tinned copper, or aluminium itself wrapped in a glass-fibre reinforced neoprene taping 21 bonded to the vulcanized cable jacket 22. The insulation 14 may be formed from butyl rubber, other synthetic rubber-like polymers, natural rubber, or vulcanizable polythene, and be applied by extrusion or by taping and subsequent vulcanization. The semi-conducting compound used in the tape 15 may be butyl rubber, either containing carbon black acting both as a conducting additive and reinforcing filler or containing acetylene black- (as the conducting additive) and other fillers. Structural reinforcement for the tape formed from the semi-conductive compound is provided, e.g. by a fabric such as cotton (which itself has a high tensile strength). The semi-conducting compound used in the tape is vulcanized during the vulcanization of the neoprene, butyl rubber, or polythene cable jacket, the tape simultaneously bonding to the previously cured or partially cured insulation. As an example compositions are given for the semi-conducting compound of the tape and for the insulation in a case where butyl rubber forms the basis of both.
Patent GB-958490-A (GB)
Title: Improvements in or relating to electric and other forms of domestic cookers
Inventor: HAY GEOFFREY THOMAS
IPC: A47J37/06
Filed: 1960-02-12
Abstract: 958,490. Cookers; drip pans. BELLING & CO. Ltd. April 10, 1961 [Feb. 12, 1960], No. 5120/60. Heading F4W. A domestic cooker has a hob 1 with four circular radiant plates 3, two spillage trays 8, 9, and a grill 4 above the cupboard 5 which has flanges 6 supporting a grill plate 7. The spillage trays 8, 9 are domed with peripheral lips 15, so that a channel 16 is formed round the trays to hold the droppings, and may be of stainless steel or chromium-plated metal or sheet metal with a stove-baked enamel surface. Another embodiment of the spillage trays, Figs. 4, 5, 6 (not shown), has a dome under each radiant with a dished top to reflect back the heat from the radiant plate. Each radiant element is supported by radial members 18 secured by brackets 19 to the hob 1, and is detachably connected by terminals 20 to a set of heat-insulated cables 25 forming an assembly 21 with supply leads 22, 23 mounted in a flexible cable passing through or below a control panel or splash plate at the back of the cooker.
Patent GB-656512-A (GB)
Title: Improvements in or relating to electric resistances
IPC: H01C7/04
Filed: 1947-02-21
Abstract: A negative temperature coefficient resistance is made by sintering a FeO-Fe2O3-MgO-Cr2O3 mixture, the resultant material consisting of a homogeneous spinel phase which is not supersaturated with a second phase at temperatures exceeding 500 DEG  C.  The molecular ratio between the total quantities of bivalent and trivalent oxides must not differ appreciably from unity.  The starting mixture comprises MgO and Cr2O3 in unity molecular ratio and the ratio of FeO to Fe2O3 is adjusted in the material according to predetermined conditions of temperature and partial oxygen pressure in the sintering atmosphere, and preserved by rapid cooling in a neutral atmosphere.  MgO and Cr2O3 in unity molecular ratio are ground with Fe3O4, the molecular ratio of MgO+Cr2O3 (calculated as MgCr2O4) to Fe3O4 being 2 : 1.  The mixture is heated for an hour in N2 at 1300 DEG  C., ground and compressed with an organic binder into 200 x 0.3 mm. wires which are heated for 1/2 hour at 1400 DEG  C. in a stream of N2 flowing at 2 litres per minute and containing 1 to 2 per cent O2, and cooled in the same atmosphere.  Such resistances may be fitted with wire ends and mounted in evacuated or gas (e.g. N2) filled glass bulbs, and are applicable to voltage stabilization.  A typical resistance has a value of 2.5 megohms at 20 DEG  C. and 1100 ohms at 1100 DEG  C. Specification 360,013, [Group XXXVI], is referred to.
Patent GB-1292381-A (GB)
Title: Process for drawing polyester yarns
IPC: D02J1/22
Filed: 1970-02-03
Abstract: 1292381 Polyethylene terephthalate filaments TEIJIN Ltd 3 Feb 1970 [3 Feb 1969] 5172/70 Heading B5B A process for drawing undrawn filaments, yarns and tows of a polyester containing at least 85 mol. per cent of ethylene terephthalate units between a plurality of heated feed rolls 2a-2e and 3, positively driven at substantially the same peripheral speed and at least one draw roll 4a-4d positively driven at a peripheral speed higher than that of the feed rolls is characterized in that at least the last feed roll 3 has a small diameter of 15 to 50 mm., and the arc of contact of the filaments with this roll extend over at least 180 degrees, so that the drawing point of the filaments is localized within its are of contact with said roll. 0À05-0À6% by weight of an oil may be applied as a finishing agent to the filaments before they are drawn, suitably by means of an oiling roller (5) (Fig. 2, not shown). The surface temperature of the small diameter feed roll may be maintained at 60-110 C. In a modification the drawing of the filaments is effected in two or more stages, the method of the invention being preferably used in the first stage, the draw ratio in the first stage being 2À5 to 5À5 and the filaments being then further drawn at a stretch ratio of at least 1À1, for example by passing them from the first stage draw rolls 4a-4d, through heater 6 to second stage draw rolls 7a-7j driven at a peripheral speed higher than that of the first stage draw rolls. The filaments may then be passed through heater 8 to third stage draw rolls 9a-9e. The polyester may be polyethylene terephthalate. The polyester may have an intrinsic viscosity as measured in orthochlorophenol at 35 C. of at least 0À75.