baber/WOPTO huggingface dataset:
Patent GB-501717-A (GB)
Title: Improvements in or relating to telegraph apparatus
IPC: H04L19/00
Filed: 1937-08-27
Abstract: 501,717. Type - printing telegraphy. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Aug. 27,1937, No. 22843/38. Divided out of 490,361. [Class 40 (iii)] A step-by-step' telegraph receiver has a printing-hammer actuated by a cam mounted on a shaft, a detent, holding said shaft, being released to allow rotation thereof at the termination of a series of received impulses. A detent cam 37, Fig. 1 (Prov.), mounted on the shaft 35 which carries the printing cam, is held against rotation by a detent 49 on a lever 38 pivoted on a stud.39. This detent 49 is held in position by the lower projection of a frame 41 mounted on a pivot 42, Fig. 2 (Prov.). Slidably mounted in the frame 41 is a rod 44 carried on a lever 45 also pivoted on the stud 39. This rod 44 is held down against the action of a spring 46 by an arm 47 pivoted on a shaft 51 which is controlled, by means described later, so that it moves in a clockwise. direction during the receipt of impulses and returns at the termination of a series of impulses. Thp initial clockwise movement allows the rod 44 and lever 45 to be raised slightly by the spring 46 until a projection at the further end of the lever 45 is held by the lever 38. When the lever 47 returns at the termination of a series of impulses its lower end strikes the rod 44 and the resultant movement tilts the frame 41 so removing its lower projection from the detent 49 and allowing the latter to be raised by a spring 40. Rotation of the printing shaft 35 is thus permitted for a quarter revolution, the detent 49 being reset by means of a roller 61, on the lever 38, operated by a resetting cam 62 on the shaft 35. The resetting movement of the lever 38 returns the lever 45 to its initial position, the rod 44,carried by it causing the frame 41 to return to the position in which it holds the detent 49. The arm 47 is connected so as to be operated by the armature of a magnet PM, Fig. 1 (Comp.), which is slow to operate but quick to release and whose armature is normally attracted with the arm 47 in the position of Fig. 1 (Prov.). The magnet PM is in parallel with a magnet EM which controls the escapement of the typewheel and the two are in series with a polarised line relay LR. On receipt of impulses the armature lr of the line relay LR is operated and the quick release magnet PM allows the arm 47 to rotate clockwise. At the termination of the impulses, the magnet PM, being slow to operate, has sufficient time to attract its armature and return the arm 47 to its initial position, so operating the printing mechanism as described. Specifications 490,361 and 490,413 are referred to.
Patent GB-1208687-A (GB)
Title: Chromatographic columns
Inventor: HURRELL RONALD ARTHUR
IPC: G01N30/60
Filed: 1968-05-14
Abstract: 1,208,687. Chromatography. M.E.L. EQUIPMENT CO. Ltd. 14 May, 1968, No. 22874/68. Headings B1L and B1X. A chromotographic column, suitable for use where the mobile phase is either gas or liquid, comprises two flat adjacent spirally wound layers 2, 3 with a mutual connecting winding around a central aperture 5 at which the radius of curvature of the two spirals is least. This least radius of curvature is preferably at least ten times the radius of the column tubing. In a modification, any even number of spiral layers may be employed, the connecting windings being alternately at the centre and at the periphery but so arranged that the inlet and outlet are both at the periphery. The arrangement may be self-supporting, or may be supported by a mounting plate positioned between layers 2, 3 and having a central aperture corresponding to 5. In order to save space, a suitable detector may be located within aperture 5. In other arrangements, a central heating plate (7) (see Fig. 4, not shown) may be located between spirals 2, 3, or heating and cooling plates (8, 9 respectively) (see Fig. 5, not shown) may be located against the outer faces of spirals 2, 3.
Patent GB-376978-A (GB)
Title: Improvements in charge supplying means for internal combustion engines with radiallyarranged cylinders
IPC: F02B33/00
Filed: 1931-08-13
Abstract: 376,978. Pumps. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 13, 1931, No. 22893. Convention date, Aug. 29, 1930: [Class 7 (ii).] In a radialcylinder engine, a fan 1, 2 of the axial-flow type is used to supply the charge; the fan delivers to an annular duct 4 which, as shown in the lower half of the Figure, is in line with the inlet ports of the engine.
Patent GB-1066224-A (GB)
Title: Improvements in or relating to apparatus for supplying particulate material
Inventor: GOSLING JOHN GRAHAM
IPC: F23J7/00
Filed: 1964-06-03
Abstract: 1,066,224. Pneumatic conveyers; discharging from hoppers. MAGNESIUM ELEKTRON Ltd. Sept. 2, 1965 [June 3, 1964], No. 22963/64. Headings B8A and B8S. Apparatus for feeding magnesium powder or granular material to a boiler combustion chamber comprises a rotary feeder 19, Fig. 4, having peripheral pockets 21 to which the powder is supplied from a main hopper 11 through a floating tubular joint 16. The powder flows into the hopper (28), Fig. 2 (not shown), of an air injection nozzle device (29) which may be angularly adjusted to reduce abrasion in the flexible pipe (not shown) connected to the boiler. The rotor 18 on the shaft 22 of a geared electric motor is mounted between side plates 18 attached below an apertured top plate 14. The floating joint 16 may contain a rubber seal (not shown)
Patent GB-1385458-A (GB)
Title: Method of manufacturing acrylonitrile polymer
IPC: C08F2/00
Filed: 1973-05-15
Abstract: 1385458 Polymerizing acrylonitrile MITSUBISHI RAYON CO Ltd 15 May 1973 [9 Nov 1972] 23022/73 Heading C3P Acrylonitrile is polymerized in water in the presence of an initiator system comprising (a) nitrous acid or a salt thereof or hydroxylamine sulphonic acid or a salt thereof, (b) a watersoluble sulphoxy compound and (c) at least 100 p.p.m. of a chelating agent. In the examples acrylonitrile is copolymerized with methyl acrylate or vinyl acetate using (a) sodium nitrite or sodium hydroxylamine sulphonate, (b) sodium metabisulphite, sulphur dioxide or sodium bisulphite and (c) disodium ethylene diamine tetra-acetic acid, nitrilotriacetic acid or cyclohexanediamine tetra-acetic acid, at a pH of 2À5. The products have improved whiteness.
Patent GB-618613-A (GB)
Title: Manufacture of biguanide derivatives
IPC: C07C279/26
Filed: 1947-02-01
Abstract: Biguanide derivatives having antimalarial properties are manufactured by the action of a halogenating agent (e.g. bromine, chlorine, or iodine monochloride) on a substance of the formula A-NH-C( : NX)-NH-C( : NY)-NRR1 wherein A represents a benzene nucleus which may optionally bear halogen, or alkyl or alkoxy groups of 1-3 carbon atoms as substituent or substituents in m-position to the -NH-group, X and Y represent hydrogen, or one (but not both) may represent an alkyl radical of 1-3 carbon atoms, R represents a lower alkyl radical and R1 hydrogen or a lower alkyl radical, R and R1 together containing more than one and fewer than eight carbon atoms, or on a salt thereof. The process may be carried out in a liquid medium, preferably a solvent for the reactants, e.g. acetic acid, nitrobenzene or concentrated sulphuric acid.  The halogen mainly enters the p-position to the -NH-group in the benzene nucleus, but in some cases there is also formed a minor amount of o-halogen compound, which, however, need not be removed as its presence is not detrimental.  Examples describe the chlorination, and, in some cases, bromination and iodination, of compounds of the general formula above in which A represents phenyl, m-chloro-, -bromo-, -methyl- and -methoxy-phenyl and 3 : 5-dichlorophenyl, X represents hydrogen and methyl, Y represents hydrogen, R represents n- and iso-propyl and ethyl, and R1 represents hydrogen, methyl and ethyl.  Specifications 577,843 and 603,069 are referred to.
Patent GB-786983-A (GB)
Title: Improvements in or relating to galvanic stack batteries
IPC: H01M6/12
Filed: 1955-08-11
Abstract: 786,983. Batteries. PERTRIX-UNION GES. Aug. 11, 1955 [Aug. 30, 1954], No. 23224/55. Class 53. In a plate cell having a two-part casing t<SP>1</SP>, t<SP>2</SP> and forming part of a stack battery, the aperture in the lower part of the casing through which the projection n on the depolarizer d of an adjacent cell projects is provided with at least one ridge r which firmly contacts the conductive foil l<SP>1</SP> on the zinc electrode z. The aperture in the lower part of the casing may be rounded off and a second conductive foil l<SP>2</SP> placed between adjacent cells and a third conductive foil l<SP>3</SP> may be placed in the aperture. The foils may be stuck together and to the casing by conductive lacquer or adhesive.
Patent GB-1044135-A (GB)
Title: Improvements in or relating to electronic switching networks for voltage signals
IPC: H03K17/62
Filed: 1964-06-04
Abstract: 1,044,135. Transistor switching circuits. FRANCE, MINISTER OF ARMED FORCES. June 4, 1964 [June 21, 1963], No. 23230/64. Heading H3T. In a circuit for cyclically connecting a plurality of signals S1 . . . Sn to a common amplifier 4, each input is shunted by a normally-conductive transistor such as 13, the transistors being sequentially turned off by pulses from a clock source 2. The effect of the voltage developed across the saturation resistance of the conductive transistors is minimised by a summing circuit comprising resistors 17, 27, 37, 6, 7 feeding a differential input to amplifier 4.
Patent GB-194630-A (GB)
Title: Improvements in the arrangement and construction of internal combustion engines for aircraft, and particularly aeroplane flying machines
IPC: B64D27/04
Filed: 1922-08-28
Abstract: 194,630. Short, H. O. Aug. 28, 1922. No Patent granted (Sealing fee not paid). Spray carburettors. - Engines for use on aircraft have their cylinders 1 inverted so that the view of the pilot is unobstructed. The carburettor 4 is suspended on a level with or below the cylinder heads and is fed by gravity from a tank in the upper part of the fuselage. In one arrangement two rows of cylinders are used placed inverted and inclined to one another the carburettors being suspended between the cylinder heads.
Patent GB-985003-A (GB)
Title: Improvements in and relating to metal-clad switching stations
Inventor: ALBERT VIBOUD
IPC: H02B13/035
Filed: 1963-06-12
Abstract: 985,003. Switchgear structures. ETABLISSEMENTS MERLIN & GERIN S.A. June 12, 1963 [June 16, 1962], No. 23349/63. Heading H2B. may form part of a ring circuit, while the centre unit II is connected with a further cable 41 through the fuses 38. In a polyphase switchgear station including fuses 38 and consisting of a number of metalclad units I, II, III containing switches 17, the fuses 38 are arranged in fan formation in an airinsulated compartment whose greatest width exceeds that of the associated switch compartment 18 and overlaps adjacent units. Each unit has a three-phase switch 17 consisting of three blades 20 pivoted on insulated bushings 19 and movable by a mechanism 31-33 to engage either fixed contacts 26 associated with bus-bars 28 or earthing contacts 27. The outer units I, III are each associated with cables 11, 12, which
Patent GB-536525-A (GB)
Title: Improvements in photographic emulsions
IPC: G03C1/06
Filed: 1939-08-14
Abstract: 536,525. Photographic silver salt emulsions. KODAK, Ltd. (Eastman Kodak Co.). Aug. 14, 1939, No. 23370. [Class 98 (ii)] The sensitivity and stability of a silver salt emulsion sensitized to the red and infra-red regions of the spectrum with a sensitizing dye having its maximum sensitizing effect at a wave length greater than 700 mÁ are increased by incorporating therein prior to coating, hydrazine or an organic derivative thereof containing one or more amino groups. The sensitizing dye may be a 4:41-carbocyanine, thiadicarbocyanine, thia-2<SP>1</SP>-dicarbocyanine, dibenzthiadicarbocyamine, thiatricarbocyanine, selenatricarbocyanine, 2:2<SP>1</SP>-dicarbocyanine, unsymetrical di- and tri-carbocyanine, merodicarbocyanine, oxatricarboxyanine, and dibenzoxadicarbocyanine. Derivatives referred to are semicarbazide and their salts and the reaction products of semicarbazide with aldehydes or ketones, such as acetone semicarbazone. From .01 to 5 grams per litre of emulsion may be added. In examples, semicarbazide hydrochloride is added to a gelatino silver halide emulsion sensitized with 1:1<SP>1</SP>-#-hydroxyethyl- 4:4-carbocyanine, acetone semicarbazone to an emulsion sensitized with 3:3'-dimethyl-2:2'- diethylthiatricarbocyanine, and hydrazine sulphate to an emulsion sensitized with 2:2<SP>1</SP>- diethylthiadicarbocyanine. Both the sensitizing dyes and the reducing agents are added to the emulsion before coating and not by bathing. Other emulsion binders, such as cellulose mixed esters, synthetic resins, and collodion, may also be used. Specification 450,958 is referred to.
Patent GB-427694-A (GB)
Title: Improvements relating to roughing heads for roughing leather and like material
IPC: C14B1/26
Filed: 1934-08-15
Abstract: 427,694. Roughing leather &c. COMPO SHOE MACHINERY CORPORATION, 565, 5th Avenue, New York, U.S.A. Aug. 15, 1934, No. 23583. Convention date, Jan. 4. [Class 31 (i)] A roughing head for roughing leather and like material comprises a body having a plurality of bores to receive roughing elements which extend beyond the outer ends of the bores and have heads overlying the inner ends. In the construction shown, a shoe sole 15 is fed by rollers 12, 13, 14, below a roughing head comprising a rotary cylinder 20 provided with roughing needles 26. The cylinder has two annular and concentric series of holes for the needles arranged in staggered relationship. A gauge plate 24 is screwed to the bottom of the cylinder 20, being locked in position by a nut 25. The plate has apertures and notches to permit projection of the ends of the needles. The cylinder is screw-threaded internally to receive the end of a driving spindle 17.
Patent GB-792477-A (GB)
Title: Improvements in the cooling of magnetic cores
Inventor: PETHERAM ARTHUR RICHARD
IPC: H01F27/16
Filed: 1955-08-17
Abstract: 792,477. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 17, 1956 [Aug. 17, 1955], No. 23724/55. Class 38 (2)._ In order to conduct heat away from a laminated magnetic core in electromagnetic apparatus, a cooling member consisting of a plate 1a with a water tube 1b welded thereto is arranged adjacent the edges of the laminations and a layer of good heatconducting material 3 is disposed between the plate and the laminations to give efficient heat transference. The material 3 may be a soft solid metal, a metal foil (e.g. indium foil), or a powdered metal in a thermosetting binder (e.g. copper powder in epoxy resin) applied as a paste and subsequently set.
Patent GB-362922-A (GB)
Title: Improvements in or relating to the control of electro-spinning and twisting machines having a separate flyer drive
IPC: D01H9/04
Filed: 1930-08-07
Abstract: 362,922. Controlling flyer motors for doffing operations. SCHNEIDER, H., 66, Zeltweg, Zurich, Switzerland. Aug. 7, 1930, No. 23726. [Class 120 (ii).] A few turns are imparted to flyer motors 8, for the purpose of winding thread on to the empty bobbins during doffing operations, by temporary application of a mechanical brake 14 to a frequency converter 4 that is running at synchronous speed. This action causes a few cycles of low frequency current to be applied to the motors. Specifications 228,846, [Class 120 (ii), Spinning, twisting, &c.] and 344,141 are referred to.
Patent GB-382351-A (GB)
Title: Improvements in or relating to spools for photographic films
IPC: G03B17/30
Filed: 1931-08-24
Abstract: 382,351. Photographic roll film spools. BAXENDEN. T. G., Lawrenny, Hempstead Road, Watford, and COLLYEAR, J. R., Leverno, Beechcroft Road. Bushey, both in Hertfordshire. Aug. 24, 1931, No. 23738. [Class 98 (i).] A spool for photographic films comprises a rolled-up sheet metal blank provided with end discs secured thereto, e.g. by pressing or welding, the body of the spool having a plurality of inpressed longitudinal ribs or corrugations extending the length of the spool. In the form shown, a spool 2 provided with the usual threading slots 3, 4 has the body portion formed with inpressed ribs 5. In a modification the corrugations may be confined to the outer surface, the inner surface being made smooth. Specifications 349,836 and 371,183 are referred to.
Patent GB-1114259-A (GB)
Title: Apparatus for and a method of compressing a fluid
IPC: F15B3/00
Filed: 1965-06-03
Abstract: 1,114,259. Hydraulic intensifiers; compressing gases. REXALL DRUG & CHEMICAL CO. June 3, 1965 [June 3, 1964], No.23772/65. Headings F1P and F1N. In an apparatus for compressing fluid comprising two intensifier units A, B having small area, high-pressure pistons 44, 51 for compressing the fluid supplied to chambers 45, 52 into a conduit 66 and integral large area, low-pressure pistons 42, 49 driven by hydraulic fluid supplied by a pump 4 to chambers 41, 43, 48, 50, the supply from the pump 4 is divided into a lowpressure supply P2 and a higher-pressure supply P1 which are alternately supplied to each chamber 41, 48 to cause a pre-compression stroke followed by a discharge stroke of the intensifier pistons. The pressure levels P1, P2 and a third pressure P3, used for returning the intensifier pistons, are automatically maintained by differential pressure regulating devices 16, 22 and a pressure relief valve 28. The device 16 is responsive to the pressure P1 downstream of an adjustable flow control valve 14 and to the pump pressure in a line 8 upstream thereof, so that when the pressure in the line 8 exceeds the pressure P1 plus the pressure due to a spring 18, a spool 19 moves to allow hydraulic fluid from the line 8 to pass to the pressure level P2. The pressure level P2 is maintained constant by the device 22 which operates in a similar manner to the device 16 but is responsive to pressure levels P1, P2. The supply to and exhaust from the chambers 41, 43, 48, 50 of the intensifier units A, B is controlled by valves 38, 69, 71 operated by solenoids connected in an electrical circuit, Fig. 2 (not shown) including micro-switches MA2-4 and MB2-4 actuated by piston rods 67, 68 carried by the pistons 42, 49.
Patent GB-421004-A (GB)
Title: Improved method of and apparatus for decorating articles of ceramic ware
IPC: B28B11/00
Filed: 1933-08-28
Abstract: 421,004. Stencilling-apparatus. SOLAR LABORATORIES, Monaca, Pennsylvania, U.S.A. Aug. 28, 1933, No. 23830. Convention date, Aug. 26, 1932. [Class 100 (ii)] Ceramic ware, including glass, is decorated by means of a stencil in which the design is outlined by closely spaced perforations, the stencil being positioned in closely spaced relation to the article and colour being forced through the stencil by a wiping blade or roller which presses the stencil into contact with the article such that on separation the deposited particles of colour flow together, the article being subsequently fired to fuse the colour. In one form, a screen-stencil 27 is clamped within a frame 26 hinged at 28 to a box-like carriage 22 mounted on wheels 25 running on rails 21. An article 36 is supported on rollers 33 carried by a stationary member 34, and a belt 31 attached to the carriage is maintained in frictional engagement with the rollers 33 by a spring 32 such that reciprocation of the carriage rotates the article 36. Pressure is applied by a scraper 19 fixed to a holder 17 adjustably bolted to an arm 15 pivoted to a cross-bar 12 clamped to uprights 11 and adjustable vertically. The stencil normally lies in a plane above the top surface of the article and is flexed by the scraper 19. The article is held between cross pieces connecting parallel wires 41 forming a slidable holder, two pairs of cross pieces being provided so that a fresh article may be moved into printing position while moving the holder into a position where the finished article may be removed and replaced, the holder being shifted back after the next operation. In a modification, Fig. 4 (not shown), adapted for conical articles, tapered supporting-rollers are employed to bring the upper surface of the article into a horizontal plane, and the scraper 19 is replaced by a roller ; and in a further modification, Fig. 5 (not shown), the article is clamped axially to a shaft carrying a gear engaging a stationary rack whereby the reciprocation of the carriage effects the rotation of the article.
Patent GB-916584-A (GB)
Title: Improvements in and relating to coding arrangements
Inventor: ROBERTS TREVOR
IPC: H03M1/00
Filed: 1960-07-08
Abstract: 916,584. Shaft rotation encoders. GENERAL ELECTRIC CO. Ltd. July 4, 1961 [July 8, 1960], No. 23942/60. Class 40 (1). A coder for providing information in digital code of the magnitude of the displacement of a rotatable shaft from a datum comprises a magslip or synchro providing a plurality of output voltages whose R.M.S. amplitudes are used to derive a representation of the relative positions of the rotor and stator, for example as described in Specification 878,505, and further comprises means for deriving a second representation in digital code at a higher resolution than the firstmentioned representation. The arrangement for the least significant figure is shown in Fig. 1. The synchro 3 provides three output voltages which are fed to transformer 2 which gives five output voltages each of which is either in phase-representing a " 1 "-or out of phase-representing an " 0 "- with a reference voltage. These voltages operate relays 9 via bi-stable units 8 to control a visual display 10 changing for each 36 degrees of rotor rotation. To obtain higher resolution one of the five transformer outputs is selected, under the control of relays 9, and fed to 36, 37, Fig. 4. The selected voltage is that whose R.M.S. value is rising from zero during the 36 degrees interval indicated by display 10. A D.C. voltage is developed across resistor 40 proportional to the amplitude of the selected voltage, which, together with the bias voltages across resistance chain 41-45 and bias voltage 59, selectively trigger bi-stable units 46-50 thereby to energize corresponding relays 51-55. One or more relays becomes operated at each 3.6 degrees of rotor rotation as indicated in Fig. 5 (not shown) whereby the rotor rotation is indicated at a higher resolution than that obtained by apparatus according to Specification 878,505.
Patent GB-748717-A (GB)
Title: Improvements in headlamp switches for motor cycles
IPC: B62J6/00
Filed: 1953-08-31
Abstract: 748,717. Snap-action switches; hand actuating devices for switches. PROCTOR, O. A. April 29, 1954 [Aug. 31, 1953], No. 24011/53. Class 38(5) A switch for dimming motor-cycle headlamps comprises a dolly and contacts in a casing arranged to be secured to the handlebar, the dolly being operable by a twistgrip on the handlebar adjacent the casing. The casing 10 is secured to the handlebar 11 by grub screws (Fig. 2, not shown) and has a cover member 18 carrying the switch base 19. The latter supports a pivot pin 23 on which are pivoted the dolly 27 and a contact member 25, the free end of which is connected to an extension 32 of the dolly by a compression spring 34 and pin 33. The dolly 27 has a part 28 extending into a recess 29 in a flange 14 on the twist-grip 15 which is held in an enlargement 13 of the casing 10 by a clip 16. Rotation of the twistgrip is limited by a projection on part 13 engaging in a recess on part 14. The contactmember 25 has a contact 26 co-operating with two fixed contacts 42 and is connected to the battery by a lead 38 connected to the pivot pin 23.