baber/WOPTO huggingface dataset:
Patent GB-578261-A (GB)
Title: Improvements in or relating to ignition devices for combustion chambers
IPC: F42C19/12
Filed: 1941-11-07
Abstract: 578,261. Ignition devices. ASIATIC PETROLEUM CO., Ltd., LUBBOCK, I., POOLE, H. J., and CROW, A. D. Nov. 7, 1941, No. 14402. [Class 7 (iv)] [Also in Group XXXIII] An ignition device for combustion chambers in which reacting substances, for example a liquid fuel and liquid oxygen, are burned under pressure, the products of combustion being discharged to an engine or a reaction nozzle, comprises a hollow body 1 containing a propellant charge 4, for example, of cordite, having the characteristic of burning at an increasing rate with pressure. The charge is fired by means of a primer 5, for example by electrical means 6, and a discharge nozzle 8 leads to the combustion chamber by way of a straight orifice 10 which creates friction and reduces the gas velocity. The nozzle 8 is preferably formed in a block of refractory material such as graphite, and an insulation 2 of similar material provided in the body 1 as shielded by a metal lining 3.
Patent GB-1010745-A (GB)
Title: New water-insoluble anthraquinone dyestuffs
Inventor: HARVEY EDWIN DENNIS
IPC: C09B1/503
Filed: 1963-04-10
Abstract: The invention comprises water-insoluble anthraquinone dyes having the formula <FORM:1010745/C4-C5/1> where Z is hydrogen or alkyl of 1 to 4 carbons, Y is a divalent radical of the formula -O.C(R1R2)CH2-, -O.CH2CH2CH2-, -OCH2OCH2- or -O.C(R1R2)CH2.O-where R1 and R2 are each hydrogen or alkyl of 1 to 4 carbons and the benzene ring X, which may be substituted by halogen, methyl or alkoxy of 1 to 4 carbons, is attached to the anthraquinone nucleus through a carbon atom which is ortho or para to an oxygen atom through which Y is attached to said benzene ring.  The dyes are made by reacting in sulphuric acid solution a compound of the formula <FORM:1010745/C4-C5/2> and a compound of the formula <FORM:1010745/C4-C5/3> the hydrogen atom being ortho or para to an oxygen atom through which Y is attached, and subsequently desulphonating the product, for example by vatting and oxidation.  The dyes dye polyamide, cellulose ester, polyacrylonitrile, polyolefine and polyester fibres from aqueous dispersion in blue shades.
Patent GB-529062-A (GB)
Title: Improvements in typographical slug casting machines
IPC: B41B11/38
Filed: 1939-05-15
Abstract: 529,062. Type-bar-making machines. LINOTYPE & MACHINERY, Ltd.. SCOTT, R. H., GORSE, W. F., and HAYWARD, A. S. May 15, 1939, No. 14457. [Class 100 (iii)] Quadding - apparatus; justifying matrices.- Relates to means for preventing excessive justification of a quadded line containing few spacebands, which may result from the yielding of the spring member, that applies the clamping pressure to the jaws, under the pressure of the justification-spring. The second justification-lever 6 carries an adjustable slotted link 7, which engages a stud 8 on the quadding-lever 4, which is operated to close the jaws by a cam 1 acting through a spring-box 3. Excessive movement of the lever 6 thus causes the pressure of the justification-spring to be transmitted to the jaws. The slotted link may be replaced by a shackle or a stirrup. If the line contains no spacebands, the full pressure of the justification-spring is applied to the jaws.
Patent GB-888117-A (GB)
Title: Improvements relating to change-speed gearing
IPC: F16H3/66
Filed: 1959-05-28
Abstract: 888,117. Variable - speed gear ; friction Clutches. DAIMLER-BENZ A.G. April 28, 1959 [May 2, 1958], No. 14477/59. Class 80 (2). [Also in Group XXXIV] Variable-speed gearing for motor cars &c., giving four forward ratios and one reverse ratio, comprises a fluid coupling 10 or an hydrodynamic torque converter driving through a shaft 18 to a drum 19 constituting the driving- member of two disc clutches 21, 22, engagement of the clutch 21 transmitting drive through a connecting member 24 to an intermediate shaft 12 integral with two sun-gears 26, 27, the latter meshing planet pinions on a carrier 46, fast with an output shaft 47, forming a planetary gear train 14 having a ring gear 42 stationed for first speed by application of a disc brake 41. By releasing the brake 41 and instead applying a disc brake 35 to station a sleeve 36 fast with a ring gear 37 meshed by planet pinions also meshing the sun-gear 26 and mounted upon a carrier 43 fast with the ring-gear 42, the gears 26 &c. constituting a second gear train 13, a second forward ratio is obtained. On releasing the brake 35 and applying a disc brake 34 to station a sun-gear 29 journalled upon the intermediate shaft 12 and forming part of a third gear-train 12 having planet pinions meshing a ring-gear 44 fast with the planet carrier of a second train 13, a third forward ratio is established. On releasing the brake 34 and instead engaging the clutch 22, which connects the driving drum 19 to the sun-gear 29 of the third gear train 12, direct drive is obtained. For reverse, the clutch 21 is released, the clutch 22 is engaged and the brake 41 is engaged to station the ring gear 42 of the first gear train 14, drive then passing through all three of the planetary gear trains 12 ... 14. The clutch 21 is a single disc clutch, and the number of discs in the clutch and the brakes 22, 34, 35, 41 is determined by the load imposed thereon. The clutch 21 is engaged when fluid under pressure is admitted to act upon a ring-shaped piston 48, and the clutch 22 is engaged when fluid under pressure is admitted to act upon a ring-shaped piston 31. The brakes 34, 35, 41 are engaged when fluid under pressure is admitted to act upon associated ring-shaped pistons.
Patent GB-946418-A (GB)
Title: Improvements in or relating to amplitude stabilized transistor oscillators
IPC: H02M3/338
Filed: 1961-04-21
Abstract: 946,418. Automatic voltage control. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 21,1961 [April 25, 1960], No. 14543/61. Heading G3R. [Also in Divisions G1, H2 and H3] An oscillator having at least one transistor with feedback between the emitter-collector circuit and the base circuit, and an overflow circuit coupled to the base, comprising a rectifier biased to conduct only when the oscillation amplitude exceeds a threshold value, is characterized in that the feedback voltage is stepped up before being applied to the threshold circuit. In order to protect the oscillator against over voltage when lightly loaded a converter, Fig. 1, comprising two transistors 1, 1<SP>1</SP> having their emitter-collector circuits coupled to their base circuits by windings on transformer 2, is provided with overflow circuits which comprise diodes 9, 9<SP>1</SP> connected to a source of reference potential formed by the parallel combination of capacitor 10 and Zener diode 11 and the feedback voltage applied to these circuits is stepped up by windings 3, 3<SP>1</SP> coupled to the base winding. The output from the circuit is derived from a further transformer 4. In a second embodiment, Fig. 2, providing a D.C. output, the Zener diode is replaced by the emitter-collector path of a transistor 11, the base of which has its potential determined by a resistor 12 and non-linear resistance 13 e.g. a Zener diode. A resistor 14 is added to ensure that the diodes 9, 9<SP>1</SP> are cut off when starting. In a third embodiment Fig. 4 the amplitude of the output at the terminals 8<SP>1</SP> is stabilized by making the resistor 13 a light sensitive resistor, and mounting it in a can together with a lamp 18 which is connected in series with a variable resistor 19 to an output winding on the transformer. The lamp thus provides a feedback control which depends on the amplitude of the output, the level at which the output is stabilized being adjusted by the resister 19. A further resistor 15 is provided which together with the resistor 14 constitute a potential divider so that only part of the voltage of source 7 is applied as initial cut-off bias to the diodes 9, 9<SP>1</SP>. The oscillators are of the saturation type, either of the transformers 2 or 4 being saturable, or the transistors 1, 1<SP>1</SP>. Specification 769, 445 is referred to.
Patent GB-950640-A (GB)
Title: Particle-multiplier
Inventor: GOODRICH GEORGE W
IPC: H01J29/02
Filed: 1961-04-21
Abstract: 950,640. Electron multipliers. BENDIX CORPORATION. April 21, 1961, No. 14584/61. Heading H1D. An electron multiplier is formed with a continuous channel bounded by a secondarily-emissive surface 16, and having a length to width ratio at least equal to 10, situated between a source 22 of primary particles and a collector 18. Different voltages are applied to the opposite ends of surface 16 to create a longitudinal accelerating field within the channel. The particles are caused to strike surface 16 by the exclusive effect of the random initial velocity components of the primary particles without application of any transverse accelerating field. As shown, a glass tube 10 coated internally with a secondary-electronemissive, resistive material such as a tin oxide or a carbon compound is disposed between a photo-cathode 18 and an anode 22, potentials of - 1700, - 1500, +1500 and +1700 volts being applied to the cathode, the ends of the dynode and the anode, respectively. A plurality of tubular dynodes of narrow cross-section may be secured together in side-by-side relation between a photo-cathode and a fluorescent screen in an image intensifier tube, Fig. 4 (not shown). The light intensifier tube shown in Fig. 6, comprises a wafer 100, 0.012 inch thick, of secondaryemissive glass having a resistivity of 10<SP>-11</SP>ohm cm., and provided with perforations 0.001 inch in diameter, arranged between a photo-cathode 106 and a fluorescent screen 108. The wafer has silver coatings 104 on each side to which accelerating potentials are applied. In further embodiments of the invention, the facing surfaces of two flat, parallel plates or of two concentric cylinders are coated with secondaryemissive, resistive material to provide a multiplying region between a cathode and anode, Figs. 7 and 8 (not shown), and in the latter case the cathode may be annular. By use of secondary-emissive material which is also photoemissive, the cathode may be dispensed with, light being focused directly into the tube 10, Fig. 3.
Patent GB-454297-A (GB)
Title: Improvements in photographic cameras
IPC: G03B17/06
Filed: 1935-03-18
Abstract: 454,297. Exposure meters. RISZDORFER, O., 1, Gellerthegy utca, Ungarn, Budapest. March 18, 1935, No. 14758/36. Convention date, March 16, 1934. Divided out of 453,845. [Class 98 (i)] The electrical measuring instrument of a photo. electric exposure meter is accommodated in a recess in the camera and its pointer moves within the field of view of the finder on the camera. The magnet 101 of the instrument is situated on the narrow side of the camera with its poles countersunk in a recess and surrounding the coil 102. The pointer 103 moves in the frame of the finder in which is also a fixed mark 105. In a modification the magnet is situated on the back of the camera. In another modification the magnet and coil are mounted on a hinged plate which folds down onto the front of the folded camera. Specifications 453,845 and 454,296 are referred to.. The Specification as open to inspection under Sect. 91 comprises also a mount for the exposure meter which is hinged to, and folds down against the back of the camera. This subject-matter does not appear in the Specification as accepted.
Patent GB-1083773-A (GB)
Title: Process for producing high wet modulus viscose rayon
IPC: D01F2/06
Filed: 1965-04-07
Abstract: 1,083,773. Producing vicose rayon. TOYO RAYON KABUSHIKI KAISHA. April 7, 1965 [April 7, 1964], No. 14816/65. Heading B5B. Rayon having a high wet modulus and improved knot strength is produced by extruding into an aqueous coagulating bath a viscose whose temperature is below 30‹ C. and which has the following properties: (a) The average degree of polymerization of the cellulose which it contains is not below 500. (b) Its cellulose content is not over 6% by weight. (c) The ratio of the total sodium content of the viscose (calculated as sodium hydroxide) to its cellulose content is not less than 0À9. (d) Its viscosity at 20‹ C. is not less than 150 poises. (e) Its salt point (determined by the sodium chloride method) is not less than 15. The temperature of the coagulating bath does not exceed 60‹ C. and it is a dilute aqueous solution of sulphuric acid, sodium sulphate and zinc sulphate, the sulphuric acid content (by weight) of the bath being 75 to 150% of the content of total sodium in the viscose (calculated as sodium hydroxide). The filaments extruded into the coagulation bath and coagulated therein are thereafter passed through one or more additional baths in which they are regenerated and are stretched during their passage through this bath or these baths the total stretch ratio being not less than 2. The temperature of the or each additional bath is above 85‹ C., the zinc sulphate content not over 2%, the sulphuric acid content not over 8% and the sodium sulphate content not over 3À5%. The zinc sulphate content of the coagulation bath may be at least 2% by weight. The coagulation bath may contain 2% by weight of zinc sulphate and 2-15% by weight of sodium sulphate. The coagulation of the filaments may be completed in the first bath and their regeneration effect in a second aqueous bath the temperature of which is not less than 50‹ C., its zinc sulphate content not more than 2% (preferably not more than 1%) and its sulphuric acid content not more than 8% by weight (preferably not more than 2% by weight).
Patent GB-695284-A (GB)
Title: Improvements relating to electric radiant heating apparatus
IPC: F24C7/06
Filed: 1950-06-14
Abstract: 695,284. Electric heating. SCOTTON, H. E. June 1, 1951 [June 14, 1950]. No. 14875/50. Class 39(iii) An electric heating apparatus, e.g. for drying textile webs, newsprint, &c. by infra red radiation, comprises at least one rod type heating element 10 with a reflector in two separate sections 12, 13 for concentrating heat on to passing work, the section 12, 13 being pivotable about respective axes parallel to the axis of each element 10 alternatively to expose or shield the work from the element or elements. This action may be initiated manually or automatically should the conveyer for the articles to be dried' break down. Theapparatus comprises a casing 1 open at the front 2, and having a perforated back panel 4 to permit atmospheric air to reach the element(s) 10 when the reflector 12 13 is in shielding position. The reflector is in two sections 12, 13, independently pivoted about pins 14 journaled in the end walls 6 of the casing 1. The sections 12, 13 are moved simultaneously by a draw bar 22 meshing with pinions 19, 20 carried by the pins 14 at one end of the casing 1, in one case the meshing being through the intermediary of an auxiliary reversing pinion 20a to ensure that the sections 12, 13 swing in opposite directions. Three elements 10 may be used, supported on brackets 9 on longitudinallv spaced rods 8 fixed to a mounting channel 7, and each comprises a tungsten coil in magnesium oxide in a tubular sheath. A bank of heaters may be provided, either vertically or horizontally stacked.
Patent GB-302990-A (GB)
Title: Improvements in milking machines
IPC: A01J5/14
Filed: 1928-05-21
Abstract: 302,990. Aktiebolaget Separator, (Assignees of Hapgood, C. H.). Dec. 24, 1927, [Convention date]. Plug and two-part couplings.-In milking- machines employing an electromagnetically operated primary pulsator in the form of a combined armature and valve t, the necessary electric connections for the intermittent energizing of the magnet are automatically established as the hose 22 is put into place to connect up the vacuum chamber n with the main vacuum pipe line. Conductors 40, 41 are arranged, preferably spirally, within the body of the hose, and the ends of the conductor 40 are passed through insulating-pieces 43, 53 to bear upon the inclined end faces of conducting sleeves 45, 55 engaged by fingers 33, z carried respectively by a bracket 32 upon, but insulated from, the valve casing 31 and by the binding post w at one terminal of the electromagnet. The other terminal of the electromagnet is grounded on the casing k which has a nipple u over which is adapted to be pressed a tube 52 within the end of the hose. The tube contacts with one end of the conductor 41 and over an insulating sleeve 54, carries the conducting sleeve 55. A similar connection with the valve casing 31 is made when the tube 42 within the other end of the hose is passed over a nipple 36 on the casing. The intermittent current is supplied by a generator in a casing affixed to the vacuum pump casing. Specifications 145,520 and 302,898, [both in Class 84, Milking &c.], are referred to.
Patent GB-790061-A (GB)
Title: Improvements relating to glass-to-metal seals
Inventor: SCOTT WILLIAM JOSEPH
IPC: C03C27/02
Filed: 1955-05-24
Abstract: 790,061. Glass-metal seals. BRITISH THOMSON-HOUSTON CO., Ltd. May 11, 1956 [May 24,1955], No. 14981/55. Class 36. In a glass-metal seal, the metal having a conductivity unsuitable for high-frequency current, a coating of higher conductivity metal is applied thereto but is interrupted or removed for a small space in the sealing area. Fig. 4 represents a high-frequency discharge device with a resonant slot or window 15 sealed in a diaphragm 14 of nickel-cobalt iron with a coating 18 of copper, gold or silver except at the region 19.
Patent GB-101972-A (GB)
Title: Improvements in or relating to Kinematograph Films and other Photographic Transparencies.
Inventor: WESCOTT WILLIAM BURTON
IPC: G03B33/00
Filed: 1916-10-23
Abstract: 101,972. Wescott, W. B. Oct. 22, 1915, [Convention date]. Kinematograph apparatus; three-colour and like systems. - Successively-exposed pairs of images, each pair being made in a camera on a film by simultaneous exposures from the same view point, are arranged upon the film so that the members of each pair of images are separated by a space which is occupied by members of other pairs of images; the pairs of images may be kinematographic or colour records. One form of an optical system for a camera for producing films bearing such images is shown diagrammatically in Fig. 1 and comprises a single lens L, a shutter B, and a half-silvered mirror g which divides the light beam into two parts which are reflected through colour screens s, s<1> on to the film. As shown, the images R<1>, G<1> are separated by a space long enough to receive; two images, and the film is shifted through two image spaces between successive exposures. Positive films produced from such films may be projected by a projector having colour screens and lenses separated so that both images of each pair may be projected between successive film shifts, the projection being either simultaneous or successive. The lenses of the projector are adjustable so as to register the images projected on to the screen and to correct for changes in the film due to temperature shrinkage or expansion. The means for feeding the film may engage the part of the film between the lenses. Referencehas been directed by the Comptroller to Specification 10639/12.
Patent GB-1286721-A (GB)
Title: Process for recovering nickel from oxide ores
Inventor: O'NEILL CHARLES EDWARD
IPC: C22B23/02
Filed: 1970-03-31
Abstract: 1286721 Recovering nickel from ores INTERNATIONAL NICKEL CO OF CANADA Ltd 31 March 1970 [28 March 1969] 15057/70 Heading C1A A process for the recovery of nickel from laterite ores containing nickel and iron comprises selectively reducing the ore in the temperature range 550-725‹ C. so as to reduce to metal a major part of the nickel, but only a minor part of the iron, then treating the reduced ore with carbon monoxide at at least two atmospheres pressure but at less than 80‹ C. to recover at least 75% of the reduced nickel as nickel carbonyl. The reduction may be carried out in a fluid bed or in a rotary furnace through which reducing gases are passed countercurrent to the ore and having two zones, a reducing zone where fuel is partially burnt in a deficiency of air so as to provide the required temperature and reducing atmosphere, and a pre-heating zone where the fuel is then completely burnt to heat the ore to at least 400‹ C. The combustion may be carried out by means of a series of mantle burners where the fuel is burnt with amounts of free oxygen-containing gases that diminish from the heating to the reducing zones. The combustion is preferably controlled so that the reducing potential is equivalent to a CO : CO 2  ratio of from 1 : 1 to 1 : 4 by volume. The nickel carbonyl formation may be catalysed by the addition of one or more of H 2 S, COS, SO 2  or pyrites either during or after the reduction operation in amounts of from 0À1 to 1% by weight of ore.
Patent GB-539374-A (GB)
Title: Improvements relating to the manufacture of boots and shoes
IPC: A43C13/14
Filed: 1940-10-09
Abstract: 539,374. Boots &c. FITZPATRICK, H. J. (Bata Akciova Spolecnost.). Oct. 9, 1940, No. 15082. [Class 17 (ii)] The edge of a toe cap is sewn to the upper with the toe cap in the position shown in dotted lines at 6a, after which the toe cap is folded over the seam and its lower edge, together with the upper, secured to the insole 1 and welt by the inseam 8.
Patent GB-514975-A (GB)
Title: Improvements in and relating to apparatus for tempering glass sheets
IPC: C03B27/052
Filed: 1938-05-20
Abstract: 514,975. Tempering glass. FORBES, L. J. B., and HEATON, J. May 20, 1938, No. 15115. [Class 56] Relates to tempering apparatus of the kind in which a glass sheet is moved into a blowing- apparatus composed of two frames each having a number of tubes provided with jet orifices, devices being provided for shutting-off the chilling medium from a portion of the jets. According to the invention, a member is provided for preventing a glass sheet from being moved into a part 'of the frame from which the chilling medium has been shut off. Each frame comprises two vertical headers 1, Fig. 1, connected by horizontal tubes 2 in which the jet orifices are formed. The lower tubes are each provided at their ends with valves 7 to control the supply of cooling-medium, and the two valves of each tube are connected by a bar 8 so arranged'that the valves open or close. in unison when an arm 9, Fig. 3, in one of the valves is manipulated. A vertical rod 11 is provided at one side of each frame, and angle. irons 13 which slide on the rods are connected by a guard rail 14. The angle irons 13 obstruct the movement of those of the bars 8 above the level of the rail 14 and prevent them from closing. In use the bar 14 is moved to a position such that it allows a glass sheet 5 to be moved into the frame, and also permits the requisite 'number of valves to be opened.' A modification in which the tubes 2 are vertical is described in the Specification. The tubes 2 may be provided with spring steel clips 17, Fig. 6, which can be turned to open or close a jet orifice 20 or the like. Each clip is provided with an arm 21 which, when the clip is turned to close the jet 20, projects into the path of the sheet 5. This construction enables narrow sheets to be chilled in the frame without waste of chilling-medium.
Patent GB-291016-A (GB)
Title: Improvements in cement tile moulding machines
IPC: B28B1/04
Filed: 1928-05-23
Abstract: 291,016. Lauscher, T. May 23, 1927, [Convention date]. Guards. - Relates to cement roofing-tile machines in which a strickle is supported by a trolly running on rails, and comprises a protective casing for the rails &c. As shown the strickle B is supported above the mould A by a trolly furnished with depending members G provided with rollers engaging rails F. To guard the parts from falling material, the rails &c. are enclosed by a boxlike casing formed of two members H, H<1> having overlapping, oblique upper portions and the members G are formed with an oblique off-set portion and recess S to interengage therewith.