baber/WOPTO huggingface dataset:
Patent GB-440652-A (GB)
Title: A new or improved self closing valve
IPC: G01F13/00
Filed: 1934-06-29
Abstract: 440,652. Self - closing valves. McCALL, G., 31, Peel Avenue, Penang, Straits Settlements, and KENT, Ltd., G., 199, High Holborn, London. June 29, 1934, No. 19299. [Class 135] A self-closing valve arrangement for preventing more than a predetermined quantity of fluid from being drawn from a conduit 2, 3 by the single operation of a draw-off tap comprises a valve member 19 carried by a rotatable arm 16 which is normally held in an open position by a spring 21 a predetermined distance away from a valve seat 20 in the outlet passage 3, a rotary fluid flow motor 4 driving a spindle 17<1> which is geared through a counter mechanism 18 for metering the quantity of flow to a spindle 13, and a clutch device in the form of a sliding gear 11 which connects the gear 12 on the spindle 13 to a gear 14 attached to the arm 16 carrying the valve member 19 to move the latter to close when flow is initiated by opening the draw-off tap. The clutch 11 is carried by a pivoted arm 9 and is actuated by a valve 6 which controls an opening in a partition 5 through which the flow from the inlet 2 to the outlet 3 must take place, this valve being lifted by the water pressure on the inlet side when the pressure on the other side is reduced by opening the draw-off tap. When the valve 19 has moved the predetermined distance, corresponding to the maximum quantity to be delivered which is adjusted by the position of a stop 22, it is held closed by the water pressure on the inlet side and the valve 6 closes and releases the clutch 11, since the pressure is equalized on both sides of the partition 5 and the flow is stopped. A small byepass 23 is provided so that on closing the draw-off tap the pressure will build up on the outlet side of the valve 19 and allow it to return by means of the spring 21 to its initial position.
Patent GB-420842-A (GB)
Title: Improvements in or relating to cups, bowls, glasses, jugs, and like articles of table ware
IPC: A47G19/22
Filed: 1933-07-08
Abstract: 420,842. Hollow - ware ; drinking - vessels ; jugs. DUDSON BROS., Ltd., and DUDSON, H. S., Hanover Street, Hanley, Stoke-on-Trent. July 8, 1933, No. 19372. [Class 128] [See also Group XVII] A cup, bowl, glass, jug, or similar article of table ware a is formed with one or more external annular reinforcing ribs b and complementary internal annular ribs Fig. 5, or grooves, Fig. 3, which prevent breakage when adjacent articles are brought into contact. The articles may have straight or curved sides, and in the latter case the reinforcing rib is formed at the region of maximum diameter. The articles may be formed of china, glass or earthenware or of the materials sold under the Registered Trade Marks " Bakelite " and " Bandalasta."
Patent GB-200371-A (GB)
Title: Improvements in sealing glands or boxes for propeller shafts of vessels, and the like
IPC: B63H23/36
Filed: 1922-07-14
Abstract: 200,371. Tharratt, R. July 14, 1922. Stuffing-boxes, substitutes for.-In stuffing- boxes for propeller shafts &c. of the type in which a disc 12 free to slide on the shaft, engages between the flange of a stationary cap 10 and a spring-pressed ring 7, the latter slides on the boss of a base-plate 5. The disc 12 is recessed to contain packing 16, secured by a plate 18, and is formed with a boss, which is grooved to engage a key or keys 13 on the shaft. The ring 7 is acted on by a single coiled spring, or by a number of springs 8, contained in recesses in the ring 7 and plate 5. The cap 10 and plate 5 are secured by studs 4.
Patent GB-362835-A (GB)
Title: Process for the production of metallic magnesium by electrothermic reduction of magnesium compounds
IPC: C22B26/22
Filed: 1931-07-06
Abstract: Magnesium dust, formed in condensing magnesium vapours obtained by electrothermic distillation, for example by blowing into an electric arc a powdered mixture of ore and carbon, is converted into coherent metal by heating in an atmosphere or current of a reducing or inert gas at reduced pressure, preferably in a high vacuum.
Patent GB-484762-A (GB)
Title: Improvements in electrical regulating devices comprising resistors of high resistance-temperature coefficient
IPC: H01C7/04
Filed: 1937-07-13
Abstract: 484,762. Variable resistors. GENERAL ELECTRIC CO., Ltd. July 13, 1937, No. 19396. Convention date, Oct. 31, 1936. [Class 37] [Also in Group XL] An electrical regulating device of the kind comprising a resistor having a high temperature-resistance coefficient and heated by a second resistor, has the first resistor in the form of a hollow self-supporting cylindrical body surrounding the heating resistor, the two resistors being located in a gas-filled space so that convection currents outside the first resistor are unhindered while those between the resistors are hindered. In order to hinder the convection currents, caps may be provided, or the gap between the resistors is made not more than three millimetres and preferably one millimetre wide. The first resistor may be of uranium dioxide or magnesium titanate, and the heater of tungsten or molybdenum. The gas-filling may be hydrogen, and at a pressure between 10 and 300 millimetres. Nitrogen or argon can be employed as a gas-filling, and the first resistor may be formed by squirting a paste containing magnesium and titanium oxides. A tubular member so formed is then heated to 1100 C. for one hour in air and thereafter to 1400-1500 C. in damp hydrogen. The heating resistor may be of constantan, or a known semi-conductor. A construction employing a tube 1 of uranium dioxide and a heater 2 tensioned by a spring 3 is shown. The device can be employed to prevent the current through a discharge tube varying with supply voltage, or with " hardening " of the tube ; for volume control in wireless circuits and for control of electric incandescent lamps. The resistors can be coupled to cause regular fluctuations in a lamp circuit for signalling purposes. Specification 417,665 is referred to.
Patent GB-244148-A (GB)
Title: Improvements in and relating to the manufacture and production of cellulose derivatives
IPC: C08B3/06
Filed: 1924-08-15
Abstract: In a process for the acetylation of cellulose involving in the first stage the chlorination of the acetylation mixture, the free chlorine intentionally left in solution is utilized to form in the second stage of the acetylation a nascent condensing-agent, for example, by the passage into the mixture of sulphur dioxide, sulphur trioxide, or an oxide of phosphorous; working in this manner the use of a strong condensing-agent such as sulphuric acid may be dispensed with, but it is permitted to complete the acetylation by a third stage in which a very small amount of a strong condensing-agent, for example, 0.01-0.1 per cent of sulphuric acid, is added.  The solutions obtained may be used directly, that is without first precipitating the acetate, for the manufacture of filaments, films &c., for example, according to the method of Specification 203,599, the solutions being first stabilized in the manners described in Specifications 200,186 and 227,134.  In an example, chlorine is introduced into the reaction mixture in the manner described in Specification 196,641 until partial or complete disintegration of the cellulose occurs, 5 per cent of sulphur dioxide calculated on the cellulose, is then passed in to combine with the excess of chlorine and form a nascent condensing-agent, and finally there is added 0.01 per cent of sulphuric acid.  Specification 139,232 also is referred to. According to the Provisional Specification one or more of the oxychlorides of sulphur or phosphorous may be added at the second stage.
Patent GB-848737-A (GB)
Title: Improvements in the production of hydrochlorides of basic carbamic acid esters
Inventor: FRIEDERICH HERBERT
IPC: C07D279/30
Filed: 1958-06-18
Abstract: Carbamic acid ester hydrochlorides of the formula: <FORM:0848737/IV(b)/1> where R3 is a straight- or branched-chain alkylene group of 2 or more carbon atoms, and R1 and R2 are the same or different aliphatic radicals, or where two of the three R groups form a heterocyclic system with the N atom, R4 and R5 are the same or different aromatic rings or heterocyclic rings with aromatic character which may be joined to each other, in addition to through the nitrogens, either directly or through carbon or hetero atoms, are prepared by reacting <FORM:0848737/IV(b)/2> with the hydrochloride of a chloroformic acid ester of an animoalcohol of formula: <FORM:0848737/IV(b)/3> The reaction may be effected in the presence of an halohydrocarbon solvent, a Friedel-Crafts catalyst of the metallic halide type, hydrogen chloride, carbon monoxide and/or carbon dioxide.  The aromatic rings R4 and R5 may be substituted, e.g. by one or more alkyl, alkoxy, hydroxyalkyl or halogen groups. Specified amines <FORM:0848737/IV(b)/4> are phenthiazine and its 2-chloro-, 3-chloro-, 2-methoxy-, 3-methoxy-, 2-acetyl-and 3-acetyl derivatives, 2, 4-dichloro- and 2, 4-diethoxy1, 3-diazaphenthiazine, 1-azaphenthiazine, phenoxazine, acridane, acridone, 2,21-iminodibenzyl, dihydrophenazine, diphenylamine, phenyl-naphthylamine, dinaphthylamine and phenyl-2-pyridylamine. Specified aminoalcohols are dimethyl-, diethyl-, dipropyl-, dibutyl-, and methylethylaminoethanol, dimethyl- and diethyl-aminopropanol-1, 3, 1-dimethylamino-2-hydroxypropane, N-(b -hydroxyethyl)-pyrolidine, N-ethyl-3-hydroxypyrrolidine, N, N1-di-(b -hydroxyethyl)-piperazine and N,N1-(g -hydroxypropyl-b -hydroxyethyl)-piperazine; when several hydroxy groups are present, those which are to be free in the product can be protected in known manner.  The hydrochlorides of the chloroformic acid esters of the aminoalcohols may be prepared by dissolving the aminoalcohol in a solvent, reacting with, e.g. hydrogen halides, trichloracetic acid or sulphonic acids, converting the salt into the chloroformic acid ester hydrochloride with phosgene in the cold, and removing the excess of phosgene and the solvent. Specifications 708,896, 808,050 and 817,558 are referred to.
Patent GB-1260532-A (GB)
Title: Method of preventing channeling in oxide-protected pnp transistors
Inventor: SOO PETER HUNGTEH
IPC: H01L23/29
Filed: 1969-04-16
Abstract: 1,260,532. PNP transistors. HUGHES AIRCRAFT CO. 16 April, 1969 [24 April, 1968], No. 19485/69. Heading H1K. To prevent channelling in a PNP transistor formed by the planar process the passivating layer is impregnated with phosphorus and covered with glass, the glass and passivation apertured over the P and N regions and conductive tracks provided to the regions on the glass. In a typical case after completion of the planar diffusion steps apertures are etched in the passivation to the base and emitter regions 6, 8 and to an annular collector contact region 4<SP>1</SP>. The device is next exposed to phosphorus oxychloride, e.g. at 1130‹ C. for 6 minutes and glass 12 sputtered on to a thickness of 2-3Á by an R.F. process. After photo-resist masking and etching to re-expose the base, emitter and collector contact regions the device is held at the gold-silicon eutectic temperature while gold is vapour deposited overall. After wiping off the gold on the glass chromium and gold are co-evaporated overall to contact the goldsilicon eutectic contacts formed in the preceding step and then shape-etched to provide conductive tracks 22<SP>1</SP>, 24<SP>11</SP> terminating in emitter and base contact pads. Silver is then deposited overall and thickened at 22, 24, 26 on the contact pads by electroplating through a photo-resist mask. After removing the photoresist the silver intermediate the thickened areas is removed by high-speed water jets or brushing. Finally, another layer 30 of glass is sputtered on with the contact pads photoresist masked and the photo-resist and overlying glass washed off.
Patent GB-1385067-A (GB)
Title: Rotating shuttle drive mechanism
IPC: D05B57/14
Filed: 1972-04-27
Abstract: 1385067 Loop taking mechanism SINGER CO 27 April 1972 [7 June 1971] 19527/72 Heading D1G To assist in passing the needle thread loop around a shuttle 22 the shuttle driving member 78 is provided with a disc 81 rotatable about an axis perpendicular to the axis of rotation of the driver, and engaging a radial slot 85, in the shuttle the disc having a radial thread accommodating indentation, means being provided to turn the disc about its axis at a rate not greater than that of the shuttle driving member. As shown the disc has peripheral teeth 83 separated by thread accommodating indentation and engaged by a screw thread formation 84 provided in the cavity 72 of the block 20 in which the driving member runs. Lower thread tensioning. The bobbin 49 is continued on a bobbin seat 45 by a friction ring 48. The seat 45 is retained on a stud 44 by a screw 46 which can adjust the pressure between the bobbin seat and a friction washer 47, to adjust the lower thread tension.
Patent GB-1003012-A (GB)
Title: Electrochemical treating method and apparatus
IPC: C25D5/08
Filed: 1962-05-22
Abstract: <PICT:1003012/C6-C7/1> Semi-annular work-pieces are treated electro chemically on one surface (e.g. etching or plated half bearing shells internally), by aligning end-to-end a plurality of the shells to form a semi-annular column which moves longitudinally and continuously through a zone of spaced members 60 which form a chamber with the shells, which chamber contains an anode 191 extending into the chamber and spaced at a pre-determined distance from the surface of the shells, and introducing electrolyte with turbulence preferably generated by admitting electrolyte at each end of the chamber, to form impinging jets.  The electrolyte is then withdrawn at the centre.  Preferably the full treatment consist in cleaning the steel backed bronze-coated shells, applying a flash coat of nickel, copper, or cobalt to prevent diffusion of the heavier electro-plate of tin/lead alloy thereon and finally a flash coat is applied on both surfaces.  The anode 191 is of lead/tin alloy and is of arcuate shape carried on a cradle 197, having a deep groove and rollers 201, on which the anode is controllably fed forward through jaws 193, 194. The dimensions of the lips and their spacing A, B, C, D are determined with rate of anode feed and other parameters to control the thickness of the plating.  An electric current is illustrated controlling the movements, and also the plating current.  Two anodes are preferably used to give a plating of 0.000030-0.000070 inch. Preferably a low pH electrolyte is used, and is circulated at high speed using a C.D. of up to 1500 A.S.F.  A non-corrodible anode may be used with metal-containing plating baths for the flash coats, and an anode of this type is used for etching with or without current reversal.
Patent GB-900679-A (GB)
Title: Improvements in and relating to spark plugs
IPC: C22C33/02
Filed: 1960-06-03
Abstract: A spark-plug electrode consisting of at least 50% iron, at least 15% chromium, 5% to 20% silver and 0% to 10% nickel is produced by pressing and sintering a mixture of the metal powders and cold swaging or extruding the sintered compact.  The metal powders should have a particle size of minus 100 mesh plus 325 mesh and the iron, chromium and nickel may either be added as elemental powders or in the alloyed form such as stainless steel. A lubricant such as hydrogenated cottonseed oil is added to the powder mixture which is compacted at 40,000 p.s.i., sintered in a reducing atmosphere at 1800 DEG  F.-2100 DEG  F., repressed, annealed at 2000 DEG  F. and then cold swaged or extruded.  The chromium content should preferably not exceed 30%.
Patent GB-403749-A (GB)
Title: An improvements in or relating to knot-tying devices
IPC: B65H69/04
Filed: 1932-07-13
Abstract: 403,749. Knot-tying devices. PERFECT TAPE COUPLER CO., Ltd., and POLLARD, R., 73, Nelson Street, Bradford, Yorkshire. July 13, 1932, No. 19776. [Class 112.] A knot-tying device for textile use, of the type comprising a hooked finger b co-operating with a spring finger c, is provided with a slot d in the shank of the hooked finger b and a thread cutter e having the blade portion e<1> bent to extend through the slot d so that it cuts the thread f after formation of the knot.
Patent GB-164260-A (GB)
Title: Fruit gatherer
IPC: A01D46/247
Filed: 1920-07-09
Abstract: 164,260. Hore, I. July 9, 1920. Fruit-gathering.-An appliance for gathering fruit comprises a metal ring supporting a bag and having all or part of its upper edge sharpened. The ring is fastened to a pole by means of a metal plate D which may be hinged. The bag C may be of string, muslin, &c. Part of the upper edge A of the ring may be covered with leather &c.
Patent GB-962101-A (GB)
Title: Improvements in and relating to the production of slabs of solid foam
IPC: C08J9/36
Filed: 1959-06-09
Abstract: Resin material, e.g. a urea formaldehyde condensate, in water is mixed into a foam of a hardener for the resin, e.g. orthophosphoric acid, and a foaming agent e.g. sodium alkyl aryl sulphonate and triethanolamine, dissolved in water. Short fibres of cellulose acetate improve the flexibility of the expanded product. Glass tubes in a divergent-convergent chamber or concentric tubes in a container are used with compressed air to produce the foam.  The foamed mixture is moulded to form blocks, which, preferably after drying, are cut into slabs in such a way that each slab has one or more faces which have not contacted the wall of the mould, and the slabs are then subjected to dielectric heating. An emulsifier may be included in the resinate solution and resorcinol along with the hardener and foaming agent.ALSO:Apparatus for foaming a resin solution comprises a container, a vertical tube therein with its bottom end closed save for a small aperture and an inlet in its upper part, and an inner tube within said vertical tube.  Compressed air admitted to the container forces the resin solution through the bottom aperture, mixes it with the air admitted in the upper part, and forces the foamed mixture out through the inner tube.
Patent GB-695607-A (GB)
Title: Improvements in or relating to electromagnetic electron beam deflection systems
IPC: H01J29/76
Filed: 1951-08-24
Abstract: 695,607. Cathode-ray tubes. STANDARD TELEPHONES & CABLES, Ltd. (Lorenz Akt.- Ges., C.) Aug. 24. 1951, No. 19993/51. Class 39(i) Electromagnetic deflecting means for a cathode ray receiving tube for deflecting the beam parallel to a given co-ordinate axis comprises a cylindrical yoke of ferromagnetic material about which is wound four coils 10, 11, 12, 13, Fig. 5, formed as toroidal sections and arranged in pairs at opposite ends of two diameters making equal angles of between 22¢ degrees and 45 degrees preferably 30 degrees, with the co-ordinate axis. As shown, coils 10, 11, 12, 13 give horizontal or line deflection, coils 11, 12; 10, 13 being connected in series in aiding relation and the two pairs of series connected coils being connected in parallel in opposing relation. The vertical or frame deflecting coils 15, 16, 17, 18 are similarly arranged and connected with respect to their axis of deflection, and are preferably wound on the same yoke as the other set of coils. The arrangement is stated to give a more homogeneous field than prior art devices in which horizontal and vertical deflecting coils are arranged alternately around a cylindrical ferromagnetic yoke and in which the flux produced by the windings of one side of the yoke is in opposition to that on the opposite side, Figs. 1-3 (not shown), especially if as is preferred the diameters characteristic of the line and frame coils make equal angles with the horizontal and vertical axes respectively.
Patent GB-1240597-A (GB)
Title: Improvements in or relating to hair curling devices
Inventor: ELMER OLAF BENDIK
IPC: A45D4/16
Filed: 1969-04-18
Abstract: 1,240,597. Hair curlers. O. B. ELMER. 18 April, 1969 [19 April, 1968], No. 20048/69. Heading A4V. A hair curling device comprises an apertured body 1 and a heatable core 4 slidably mounted in a guide tube 5 so that it can move between a first position in which the core 4 is held completely within the body 1 (as shown in Fig. 1) and a second position wherein one end of the core 4 projects from one end of the body 1 so that it may be placed in contact wth a hot plate. The core 4 may be formed from solid meal or it may comprise a closed tube containing a liquid. The core is spaced from the body 1 by transverse walls 2 of thermally insulating material. A slot 6 formed in the guide tube 5 and a pin 7 screwed into the core and engaging the slot 6 limit the movement of the core between the first and second positions. The hair curling device has a spring loaded assembly 8 set within a bore in the core so that it engages the inner wall of the guide tube to prevent inadvertant movement of the core within the guide tube. The body of hair curling device may be provided with a plurality of teeth and a handle whereby it comprises a hair curling comb.
Patent GB-1073059-A (GB)
Title: Extrusion of thermoplastic synthetic resins
IPC: B29C48/08
Filed: 1965-05-12
Abstract: 1,073,059. Extrusion nozzles. RÍHM & HAAS G.m.b.H. May 12, 1965 [May 14, 1964], No. 20117/65. Headings B5A and B5B. A synthetic resin-sheet or -film forming extrusion nozzle 1 comprises an elongated slot 3 parallel to the longitudinal axis of the nozzle, which axis is coincident with or parallel to the axis of a screw impeller (not shown) whose barrel is attached to nozzle 1 via flange 2. Slot 3 is bounded on two sides by lips 5a and 5b and a second slot, preferably diametrically opposite the first, may also be provided. The nozzle is heated externally by longitudinal rod heaters or by a band heater 7. Synthetic resins mentioned are polyvinyl chloride, polystyrene and polymethyl methacrylate.
Patent GB-205867-A (GB)
Title: Apparatus for throwing the shuttles of looms by means of compressed air
IPC: D03D49/42
Filed: 1922-07-22
Abstract: 205,867. Klemm, G. July 22, 1922. Picking-motions; checking shuttles.-In pneu matic shuttle-picking apparatus, the admission valve is controlled by the flying shuttle. The shuttle is thrown by a piston 16 inside a cylinder provided with an air admission valve 12 and an exhaust valve 13. The exhaust valve 13 is operated by a cam 9 fixed on a rotating shaft S and the inlet valve is operated by a cam 10 on the same shaft, the cam 10 being moved along the shaft to operative position by a fork 11 connected with a shaft 19 carrying a lever 21 by which the shaft is rocked outwardly by the flying shuttle. Each shaft 19 is rotatively mounted in front of the throwing path and carries on one end a lever 21 and on the other end a lever 22. In operation, compressed air from the open admission valve 12 drives the piston 16 forward and throws the shuttle to the shuttle-box on the right side where it is checked in known manner by resilient parts against which the lever 21 rests. The lever 21 is thereby rocked outwardly and communicating its rocking motion to the shaft 19 causes the admission cam 10 of the left hand cylinder to be slid out of action. The shuttle having left the left hand shuttle box, the brake parts in this box and the lever 21 return to normal position; this motion of the lever 21 moves the admission cam of the right hand cylinder into operative position. When the outlet valve of the left-hand cylinder is opened by its fixed cam 9, the piston 16 is pushed back by the resilient lever arm 25.