baber/WOPTO huggingface dataset:
Patent GB-689998-A (GB)
Title: Improvements in or relating to electrical condensers
Inventor: CLARKE MICHAEL EDWARD
IPC: H01G4/02
Filed: 1951-01-18
Abstract: 689,998. Electric condensers. NAPIER & SON, Ltd., D. Jan. 16, 1952 [Jan. 18, 1951], 1437/51. Class 37. A gas-tight casing 1, Fig. 1, is filled with gas under pressure (e.g. nitrogen or sulphur hexafluoride) which acts as dielectric for a variable condenser comprising a fixed set of cylindrical co-axial plates 31, into the gaps of which can move a set of movable cylindrical co-axial plates 35; the movable plates 35 are fixed to a hollow shaft 32 moving in a hollow shaft 6, under the action of a rod 40 tracked up and down by a screw 48; a metal bellows 46, 47 embraces the rod 40 and maintains the casing gas-tight. The fixed plates 31 are insulated from the casing, and as shown, are connected to one set of flat circular plates 13 which cooperate with an intermeshing set of flat plates 8 to form a fixed condenser in series with the variable condenser. In a modification, Figs. 3 and 4 (not shown), the fixed condenser is dispensed with, and the fixed and movable coaxial cylindrical plates are connected to opposite ends of a casing whose side wall is of fuzed silica.
Patent GB-534341-A (GB)
Title: Improved method of producing photographic contasts by means of a diazonium compound
IPC: G03F7/016
Filed: 1940-01-24
Abstract: 534,341. Photographic diazotype processes. PHILIPS LAMPS, Ltd. Jan. 24, 1940, No. 1473. Convention date, Jan. 27, 1939. [Class 98 (ii)] Contrasty relief images are produced in a tannable water-soluble binding agent such as casein or egg albumen sensitized with a diazo compound of the kind which couples with its own decomposition products to form the coloured picture-and also containing a copper salt, by treating the layer after exposure with a chromate solution, the tanning of the exposed parts being effected in part by the chromate and in part by the diazo decomposition products, and thereafter washing away the unexposed parts. In an example, a glass or aluminium plate is cleaned, coated with an aqueous solution of casein containing ammonia, dried, and bathed in a solution containing 1-hydrooxyl-2-diazonium benzene-4-sulphonic acid, copper nitrate and chrome alum. It is then bathed in alcohol, dried, exposed to light, developed and tanned by bathing in potassium chromate solution; and after washing in running water, the unexposed casein is removed with a wet swab. The relief, when dry, may be protected with a coating of celluloid lacquer. Paper may be used as the support. Reference is made to known methods of producing tanned images in diazo-colloid layers, and to Specifications 296,008, [Class 98 (ii)] and 391,970 is referred to.
Patent GB-100435-A (GB)
Title: An Improved Fire Alarm.
Inventor: MOLONEY MATTHEW
IPC: G08B17/06
Filed: 1916-02-01
Abstract: 100,435. Moloney, M. May 8, 1915, [Convention date]. Addition to 4777/12. Alarms operated by expansion and contraction of solids; electric alarm systems.-The fire-alarm switch described in the parent Specification is mounted in a casing 9 in the lower compartment of the chest 17, the upper compartment of which contains electric cells 19, wiring 20, and an electric bell 22.
Patent GB-754830-A (GB)
Title: Improvements in or relating to instruments for drawing or measuring circular arcs
IPC: B43L9/00
Filed: 1954-01-19
Abstract: 754,830. Curve-describing instruments. PEPPER, E. W. Jan. 17, 1955 [Jan. 19, 1954], No. 1521/54. Class 97 (3). An instrument for drawing or measuring circular arcs comprises a member adjustable in length and having a wheel at each end, one wheel being of less diameter than the other. A set of interchangeable wheels of different diameters may be provided. As shown, two telescoping parts 10, 11 are secured together in any adjusted position by a screw 12. Wheels 17, 21 are fixed to opposite ends of the telescoping parts by knurled nuts 16, 20, and have chamfered edges 18, 19. Wheel 17 has a circumference of, say 12 ins. and its edge is divided by graduations into inches and fractions of an inch. Wheel 21 is one of a set of six wheels of various diameters less than that of wheel 17, each wheel being divided by the same number of graduations as the wheel 17. To draw an arc of a given radius, a wheel 21 is chosen which, in conjunction with the telescoping adjustments, enables curves to be drawn with a range of radii within which the given radius lies. The parts 10, 11 are adjusted so that one of six scales on part 11 which embraces the required range of radii is visible in an aperture 13 in member 10, with an index mark 14 indicating the required radius on the scale. The wheel 21 giving the required range is mounted on part 11 with the zero of its graduations aligned with the zero of the graduations of the wheel 17. When the instrument is rolled on a sheet of paper, an arc of the required radius is traced by the edge 18 of wheel 17, and may be marked by plumbago on the edge of the wheel, or a sheet of carbon paper between the wheel and the paper. The graduations on wheel 17 enable the length of the arc to be measured. By drawing lines through corresponding parts of the arcs traced by the two wheels, a series of convergent lines may be drawn. If desired, a pencil or scriber may be mounted on the instrument. The holder 25 for the pencil or scriber 27, Fig. 4, has a ball race the inner part 23 of which is clamped between wheel 17 and nut 16.
Patent GB-112529-A (GB)
Title: Improvements in or relating to Flywheel Magneto-devices for Internal-combustion Engines.
IPC: H02K1/27
Filed: 1917-01-31
Abstract: 112,529. Villiers Engineering Co., Funck, G., and Farrer, F. H. Jan. 31, 1917. Magneto - electric machines. - The flywheel B, Fig. 1, of an internal - combustion engine is formed as a spoked wheel and its inner periphery supports the permanent magnet of the ignition magneto. The fly-wheel hub E has a conical bore to fit the end F of the engine shaft, being held thereon by a coned nut G. The bore of the hub is formed with a screw-thread H adapted to receive a hollow plug I, Fig. 3, when it is desired to remove the flywheel from the shaft. The plug I is fitted with a ball J which engages the end F of the shaft to reduce friction.
Patent GB-643098-A (GB)
Title: Improvements in or relating to electrolysis of alkali metal salts
IPC: C25B1/42
Filed: 1948-01-19
Abstract: 643,098. Electrolysis of alkali-metal salts. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 19, 1948, No. 1578. Convention date, Jan. 17, 1947. [Class 41] In a process for the electrolysis of alkalimetal salts in a cell using a flowing mercury cathode, the current leaving the cell flows through two paths, one through the denuder for decomposition of the alkali-metal amalgam and the other by an external shunt through an auxiliary source of electrical energy, both circuits being connected to the negative terminal of the main electric generator, and so regulated that the current passing into the denuder has a functional correspondence with the quantity of alkali metal in the amalgam contained therein or issuing therefrom. For example, if the electrolytic yield in the cell is 95 per cent, the voltage in the auxiliary generator will be regulated so that the current through the denuder is only 95 per cent of the 'current through the cell. As shown in Fig. 1, an electrolyser comprises two compartments a, b, the compartment a constituting the electrolyticcell provided with an anode c, a mercury cathode d and alkali-metal salt l. The denuder b contains alkali-metal amalgam f, a grid g and alkali metal hydroxide m. The auxiliary generator k is connected to the denuder electrodes and returns excess current to the main generator h, thereby preventing oxidation of the mercury in the denuder. In the arrangement shown in Fig. 2, three cells a1, a2, a3 are connected in series and three denuders b1, b2, b3 are also connected in series. The passage of mercury from one compartment to the next is by means of a nozzle or other interrupter of flow. Specifications 16046/92 and 10684/93, [both in Class 41], are referred to.
Patent GB-218216-A (GB)
Title: Improvements in and relating to hoods for motor or other vehicles
IPC: B60J7/12
Filed: 1924-01-22
Abstract: 218,216. O'Brien, F. Jan. 22, 1924. Hoods.-A hood for a motor or other road vehicle comprises a single lattice framework, of which the members are pivoted together at 2 and the rear members are pivoted to short links 5 hinged to a rear U-shaped support 7, and a cover 9, Fig. 4, adapted to be unrolled to cover the framework. The support 7 is secured at each end to a telescopic strut 13, 14 pivoted at 8 to the vehicle body and provided with a spring adapted to lock it in its extended or contracted position. Fixing plates 11 at the front of the lattice framework secure it to the wind screen and to a transverse lath 12 to which the hood cover 9 is secured. Strips of webbing 10 prevent undue extension of the framework.
Patent GB-275153-A (GB)
Title: Improvements in or relating to liquid measuring and distributing apparatus
IPC: B67D7/16
Filed: 1927-01-20
Abstract: 275,153. Soc. Hardoll. July 27, 1926, [Convention date]. Liquid meters.-Relates to an automatic apparatus comprising two measuring- chambers, one of which fills while the other discharges, and having a quick-action throw-over of the valves whereby the filling and discharging of the two chambers may be alternated. The liquid-supply pipe o delivers to a cross-pipe k whence it passes by one or other of the single-ported tubular slide valves e, moving in vertical tubes f, into the appropriate measuring- chamber a or b. These chambers are normally open at their upper ends. to which is led a supply of compressed air to aid discharge. The valve of the other chamber is at this time positioned to discharge through the second cross-pipe l to the delivery p, the two valves being connected by links m and a lever n pivoted at u and controlled by a snap-action consisting of an arm q on the lever, to the extremity of which is pivoted a spring-controlled arm r, adapted to be thrown over rapidly when the lever turns so as to bring it against a fixed projection t. Movement of the lever occurs when the filling of a chamber causes the float valve c, d at its upper end to close and thus produce a reaction on the tubular charging-valve due to the pressure of the incoming liquid. This forces the valve down, and reversal of the operation takes place.
Patent GB-807129-A (GB)
Title: Improvements in or relating to colour-television picture tubes
IPC: C08F36/04
Filed: 1957-01-18
Abstract: 807,129. Colour television tubes. PHILIPS ELECTRICAL INDUSTRIES Ltd. Jan. 18, 1957 [Jan. 21, 1956], No. 1934/57. Class 39(1). A colour television picture tube comprising at least one electron gun, a picture screen having at least two luminescent substances arranged thereon in parallel strips, a focusing mask arrranged between the screen and a counter-electrode, is characterized in that the apertures in the mask are of general rectangular shape, the long sides of which are parallel to the luminescent strips, the ratio of the sides of the rectangle being between 4 : 3 and 40 : 1, the angles of the rectangles being rounded off by smooth curved lines which, viewed from the centres of the rectangles are concave and are at an angle of less than 20 degrees to the long rectangle sides. Suitable curves are shown in Figs. 6a. band c with radii 23, 27 and 31 respectively, the resultant spot on the picture screen being shown at 25, 29 and 33.
Patent GB-749365-A (GB)
Title: Improvements in or relating to the hot working of titanium and titanium base alloy materials
Inventor: HALL DOUGLAS WILSON
IPC: C23F17/00
Filed: 1953-01-22
Abstract: A titanium base alloy, used in the manufacture of a turbine or compressor blade (see Group XXII) contains one or more of the following elements: carbon, boron, oxygen, nitrogen, magnesium, chromium, aluminium, manganese, molybdenum, iron, vanadium.  A preferred composition comprises the following percentages: chromium 2,7, iron 1,3, oxygen 0,25, nitrogen 0,02, carbon 0,02, tungsten (max) 0,04 and the remainder titanium. Specification 659,573 [Group XXII] is referred to.
Patent GB-794813-A (GB)
Title: Electric pulse supply arrangements
Inventor: BRAY FREDERICK HARRY
IPC: H04Q3/52
Filed: 1954-10-05
Abstract: 794,813. Automatic exchange equipment. STANDARD TELEPHONES & CABLES, Ltd. Sept. 30, 1955 [Oct. 5, 1954], No. 1994/56. Divided out of 794,812. Class 40 (4). [Also in Group XL (c)] Pulses of a predetermined voltage amplitude, with steep leading edges, which pulses are applied to the line circuit anodes of the line switch tubes in an exchange of the type described in Specification 794,812, are produced by using a source (not shown) delivering pulses of substantially greater amplitude which are applied at point X and extended via, the parallel combination of resistor Rl and a rectifier to the relevant anodes, the amplitude being limited to the predetermined value by the catching rectifier MR3. The rectifier in the pulse lead is conducting towards the pulse source in its " no pulse " condition and serves to drain off spurious pulses induced into the pulse lead.
Patent GB-265191-A (GB)
Title: Method and device for burning solid fuels
IPC: F23H7/06
Filed: 1927-01-24
Abstract: 265,191. Martin, J. Jan. 29, 1926, [Convention date]. Grates.-Combustion of fuel is effected on an inclined grate having an ash-discharge outlet at the upper and a clinker discharge outlet at the lower end, the lower layers of fuel being moved forwardly and the upper layers rearwardly by the reciprocating grate members. As shown in Fig. 2, the grate is formed of forwardly and upwardly inclined reciprocating members, the adjacent members being moved by gearing g in opposite directions. Fine ash is discharged through an opening e controlled by a slide m and the clinkers pass over reciprocating grate bars o to a discharge passage d. By adjusting the opening e and the operation of the bars o the fuel and ashes resting on the grate may be caused to partake of a more or less circuitous course. The shaft p for reciprocating the bars o is driven by a rod t operated from an eccentric s connected with the fuel feeding mechanism. The end of the rod t is connected to a crank v, Fig. 3, on the shaft p through a rod w carrying a nut x to vary the amount of lost motion between the rod t and crank v and the reciprocation of the bars o.
Patent GB-259443-A (GB)
Title: Mud guard for automobiles and the like
IPC: B62D25/18
Filed: 1926-01-25
Abstract: 259,443. Larsen, H. J. Jan. 25, 1926. No Patent granted (Sealing fee not paid). Lateral - splash guards comprise a casing 1 carried by a hub cap within which casing are mounted louvre plates 18 carried by chains 9 adapted to raise and lower the plates 18 by means of sprocket wheels 13, spindle 15, and key 10. The bottom of the casing 1 is closed by flaps 4, 5 which may be lowered and assist in guiding the plates 18. The plates aremounted in bars 19 carried by sliding blocks 8 and are spaced apart when lowered by flexible straps 14.
Patent GB-578370-A (GB)
Title: Improvements in or relating to the manufacture of cast brisant explosive charges
IPC: C06B21/00
Filed: 1942-02-18
Abstract: 578,370. Explosives. TAYLOR, J., WRIGHT, H. R., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 18, 1942, No. 2158. [Class 9 (ii)] Kieselguhr is distributed throughout a melt of which the essential and predominating ingredient is trinitrotoluene, the proportion of kieselguhr to melt and the composition of the melt being such that the sensitivity to detonation of the solidified composition is greater than that of a similar charge free from kieselguhr. The sensitivity is determined by the lead plate test, of which details are given in the Specification. The proportion of kieselguhr may be 4 to 20 per cent by weight of the T.N.T. The kieselguhr may have been calcined, and may have high liquid absorbency. Specification 537,579 is referred to.
Patent GB-1492220-A (GB)
Title: Compensation of optical error in optical scanning apparatus having rotating deflecting device
IPC: G02B26/12
Filed: 1976-01-20
Abstract: 1492220 Correcting optical errors LASER GRAPHIC SYSTEMS CORP 20 Jan 1976 [22 Jan 1975] 02158/76 Heading H4F [Also in Divisions G2-G3] An optical scanner comprises a light source 18, e.g. a laser, which may be modulated by a video signal and whose beam passes via mirror or refractor 24, or two mirrors, and rotating mirror 12 to scan lines a<SP>1</SP>-f<SP>1</SP> on sheet 22, e.g. a printing or photographic plate. Each line a<SP>1</SP>-f<SP>1</SP> corresponds to a respective face a-f on mirror 12, sheet 22 being moved in the Y direction between scans. The mirror 12 has errors caused by deviations of each facet from a line parallel to the rotation axis and variation between the mirror facets and these cause variations in the scan lines. To compensate for this, unit 24 is moved under the control of a digital store having respective correction data for each facet. This may be used for letterpress printing (Figs. 2a and 2b, not shown) where the mirror 12 scans on original or pasteup and scan writes on to a photosensitive or plastic printing plate, there being separate read and write laser systems using the same rotating mirror assembly or two different assemblies, respective read and write scans occurring for each mirror facet. This system can be modified to write only.
Patent GB-1530582-A (GB)
Title: Non-return valve
IPC: F16K15/02
Filed: 1977-01-19
Abstract: 1530582 Valves HOERBIGER VENTILWERKE AG 19 Jan 1977 [26 Jan 1976] 02165/77 Heading F2V A non-return valve comprises a one-piece housing which defines a valve seat 2, and a closure plate 4 which is urged against the seat 2 by a helical spring 6, the spring being compressed within the housing by engagement, at its end remote from the plate 4, with a plurality of lugs 7 which extend inwardly from the housing wall. One end 8 of the spring is pushed into a bore 9 in one of the lugs 7 so as to anchor the spring.
Patent GB-670639-A (GB)
Title: An improved manufacture of moulded articles of rubber and other curable plastic materials
IPC: B29C33/40
Filed: 1949-01-26
Abstract: 670,639. Moulding articles from rubber &c. ST. HELENS CABLE & RUBBER CO., Ltd., CLEPHAN, P. W., and ENSOR, A. J. Jan. 25, 1950 [Jan. 26, 1949], No. 2168/49. Class 87 (ii) A method of manufacturing an article of rubber or other curable plastic material comprises pressing round a rigid pattern of the article a body (or bodies) of unvulcanized rubber compound which at the end of the pressing is substantially completely enclosed within rigid boundaries, vulcanizing the rubber in the enclosure formed by said boundaries while still under pressure, opening the mould thus formed, removing the pattern and then using the mould, enclosed in the same or a similar rigid enclosure, to manufacture the article, the mould being closed under pressure to shape the article and maintained under pressure during the curing of the article. The rigid boundaries are prefer ably comprised by a steel cylinder 2 and the plates, 3, 6 of a press. The pattern 1 may be of metal or close-grained timber, and the rubber bodies 4, 5 may be cut from a sheet of the required thickness. The body 5, when positioned, projects above the top of the cylinder 2. To prevent the two parts of the mould from uniting during pressing and vulcanizing, the face 7 of the body 4 is treated with french chalk. Alternatively the mould parts may be allowed to unite and the mould subsequently opened by cutting it. Heat and pressure are applied to the plates 3, 6 and maintained long enough to vulcanize the rubber. After vulcanizing the plates are separated and the body 5 removed, being separated from the pattern, by stretching if necessary, which is then removed from the body 4. If the pattern has a fairly large flat surface a single slab of rubber may be used for the mould and one side of the pattern be in direct contact with one of the press plates. The required quantity of unvulcanized rubber compound is placed in the mould space formed as above, the mould closed and put in the press and the rubber vulcanized by pressure and heat to produce the moulded article; or a passage or passages may be formed in the rubber body and an injection moulding process used. Locating pins 8 should preferably be used. Materials other than natural rubber mentioned as being suitable for the mould are ebonite and synthetic rubber or rubber-like substances. Where necessary, precautions are taken to prevent adhesion between the moulded article and the mould; the inner surfaces mav for example be treated with French chalk before the mould is filled.
Patent GB-657166-A (GB)
Title: Tilting table construction
IPC: A61B6/04
Filed: 1949-01-26
Abstract: 657,166. Rontgen - ray apparatus. NEWTON VICTOR, Ltd. Jan. 26, 1949, No. 2179. Convention date, Jan. 26, 1948. [Class 98 (i)] [Also in Group XIV] A tiltable table 12 for supporting a patient is connected to a single pedestal 24 at one side of the table by means of a pivoted link 14 and can be tilted, e.g. by a hydraulic ram 15, about either pivot of the link. X-ray apparatus 51 can be mounted on tracks 48 beneath the table and additional tracks 45 carry a cassette and diaphragm carriage 43.
Patent GB-687577-A (GB)
Title: Improvements in or relating to legs for articles of furniture
IPC: F16B12/12
Filed: 1950-01-27
Abstract: 687,577. Ornamenting furniture legs. BASKIN, J. Jan. 18, 1951 [Jan. 27, 1950], No. 2193/50. Classes 52(i) and 52(ii) An ornamental enlargement 2 of rectangular cross-section is mounted on a leg 1 by attachment to spacing strips 5 secured to the leg.
Patent GB-713745-A (GB)
Title: Improvements in fabric tensioning means for looms
IPC: D03J1/22
Filed: 1951-01-29
Abstract: 713,745. Looms. TAYLOR, H. K. Jan. 17, 1952 [Jan. 29, 1951], No. 2196/51. Class 142(2) An auxiliary temple, for keeping the selvedge steady in the main temple and maintaining the required tension between the main and auxiliary temples, comprises a ring or rings 6 furnished with spikes for engaging the selvedge, the ring being rotated by a ratchet wheel 5 actuated by a pawl 9 carried by a mounting 10 pivoted about the axis of the ratchet wheel. A spring 12 urges the mounting in the driving direction of pawl 9. An arm 11 extending from mounting 10 is actuated by a runner adjustably mounted on the sley, thus moving the arm and the mounting against the action of spring 12 and tripping pawl 9. On the return of the sley the spring 12 causes pawl 9 to drive the ratchet wheel. The arm 11 may be able to move relative to the mounting 10 so that the operating device can push the arm and move beyond it, tripping past the arm on the return stroke.
Patent GB-531883-A (GB)
Title: Improvements in and relating to servo-motors
IPC: F15B15/14
Filed: 1940-02-06
Abstract: 531,883. Stuffing-box substitutes MOTOSACOCHE SOC. ANON, Feb. 6, 1940, No. 2259. Convention date, Feb. 10, 1939. [Class 122 (v)] In a servomotor comprising a piston 5 operating in a cylinder 1, leakage of the pressure-fluid is prevented by providing the cylinder, at the opposite end t( the fluid-inlet 4, with an annular shoulder 7 having a fluid-tigh washer 8 against which the piston abuts at the end of its working stroke. The shoulder may be provided by a plug 3 having escape-ports 10, and a seat for a return-spring 9.