baber/WOPTO huggingface dataset:
Patent GB-418414-A (GB)
Title: Improvements in and relating to oil burners
IPC: F23C99/00
Filed: 1934-03-03
Abstract: 418,414. Oil burners. LINNEKOGEL, T. F. W., 1B, Welhavensgate, Oslo, Norway. March 3, 1934, No. 6864. [Class 75 (i).] An oil burner for cooking-ranges, central heating, &c., of the open dish-type with drip tube feed 5, comprises a central air inlet tube 19, on which is supported by webs 21 an incandescent head 10 having a depending tube 20 so as to afford air passage from the tube 19 to the edge of the head, and a ring supported by flanges 12 on the edge of the dish. Further air is supplied between the edge of the dish and the flange 12 and through a lower set of holes 16 in the ring, also through tubes 9 in the dish, through an upper ring of holes 17 and through a gap 15 between the ring and a hearth ring 9. The ring is narrower at the top than at the bottom.
Patent GB-415342-A (GB)
Title: Improvements in illuminating devices for microscopes
IPC: G02B21/08
Filed: 1934-03-03
Abstract: 415,342. Microscopes. REICHERT, C., and REICHERT, O., (trading as OPTISCHE WERKE C. REICHERT), 219, Hernalser Hauptstrasse, and RAMSTHALER, P., 8, Strohberggasse, both in Vienna. March 3, 1934, No. 6865. [Class 97 (i).] In a device for illuminating microscope objects by incident light which can be directed on to the object either by a mirror e which restricts the aperture of the objective when in use or by an annular mirror d and /or glass plate f which do not restrict the aperture when in use, the reflectors are rigidly connected together and are movable in a direction parallel to their surfaces to bring the mirror e in or out of action. The aperture of the mirror d and the size of the glass plate f are such that the required movement will not cause the annular mirror to encroach on the beam or the plate to cease to be traversed by the whole of the beam. The mirror d may be formed of metal and the mirror e may be a tongue connected thereto. The mirrors d and e may be reflecting surfaces formed on plate f. The mirror d may be dispensed with and the mirror e only formed on the plate f.
Patent GB-216600-A (GB)
Title: Improvements in the pistons of internal combustion engines
IPC: F16J1/06
Filed: 1923-03-09
Abstract: 216,600. Lanchester, F. W., and Daimler Co., Ltd. March 9, 1923. Pistons.-In a piston of the type; having a separate spring- pressed slipper b, the slipper is also positioned axially by springs. The slipper is supported at each gudgeon-pin boss by a pair of springs v and is pressed outwards by a spring h. All the springs bear on the gudgeon-pin bosses. The springs h are housed in pockets in the slipper b, while the pockets housing the springs v may be formed in the slipper, or in the gudgeon-pin bosses, as shown. The springs v prevent contact of the slipper with the piston.
Patent GB-565247-A (GB)
Title: Improvements in polyphase transformers for current converters
IPC: H02M7/06
Filed: 1943-05-03
Abstract: 565,247. Transformers; converting. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. May 3, 1943, No. 6935. Convention date, May 6, 1942. Drawings to Specification. [Class 38 (ii)] Relates to polyphase converters in which the transformer windings connected to the anodes comprise differently constituted zig-zag connected groups, the neutral points of which are interconnected by interphase transformers, and consists in so dimensioning and arranging the winding components constituting each phase in relation to those of the other phase that the commutating reactances in the different groups are equal while the algebraic sum of the voltages induced in each phase during its commutating period by short-circuit currents at commutation in the phases inductively related thereto is zero, thus ensuring a balance of load between the simultaneously conducting phases. If necessary, some of the winding components may be arranged on a separate auxiliary core, and additional series reactors on the primary or secondary side may be provided for adjusting the total reactance. The Specification describes a test whereby the necessary reactance conditions for any number of phases including phase numbers between 6 and 12 may be determined and contrasts this with a test previously employed for the 12-phase case.
Patent GB-286096-A (GB)
Title: Composition for coating substances liable to putrefaction together with a method of preparing same
IPC: A23L1/00
Filed: 1927-03-14
Abstract: 286,096. Veen, G. van der, and Bens, G.J. P. H. A. de. March 14, 1927 Coating-compositions applied melted.-A coat. ing-composition for foodstuffs is obtained by melting colophony or other resin with solid paraffin in such proportions as to reduce the temperature of fusion to about 25-30‹ C. The resin may, if necessary, be first purified by melting with soda or other alkaline, material. Powdered charcoal, animal charcoal, lamp black, or other absorbent carbon material may be, added to the composition during melting. A little, magnesium oxide, or carbonate, with or without addition of the chloride, mav also be included. A composition which can be cooled to 26-30‹ C. without setting is prepared by melting 1000 gm. of colophony with 100 gm. of soda., and then adding in succession 900 gm. of solid paraffin (melting point 45-65‹ C.), 50 gm. of powdered charcoal, and 100 gm. of magnesium oxide or carbonate.
Patent GB-1262156-A (GB)
Title: Apparatus for producing synchronisation in address-coded communication systems
Inventor: GUANELLA GUSTAV
IPC: H04K1/00
Filed: 1969-02-10
Abstract: 1,262,156. Radio signalling. PATELHOLD PATENTVERWERTUNGS-UND ELECTROHOLDING AG. 10 Feb., 1969 [12 Feb., 1968], No. 7054/69. Addition to 1,261,771. Heading H4L. The communication system disclosed in Fig. 3 of the parent Specification is modified in that a sub-programme of frequency-switching is superimposed on the main frequency-switching programme to provide an increased number of address signals and improve the secrecy of the system. The frequencies of the original programme are shifted periodically in such manner that parallel scanning lines are provided as before but the frequencies no longer appear in a regular sequence but are distributed in a pseudorandom manner. A common basic programme may be provided for all the stations in a network, individual stations being characterized by different sub-programmes.
Patent GB-628155-A (GB)
Title: Improvements in and relating to lighting arresters
IPC: H01T1/14
Filed: 1947-03-13
Abstract: 628,155. Protective arrangements. E.M.P. ELECTRIC, Ltd., and HUMPHREYS, I. E. March 13, 1947, No. 7071. [Class 38 (iv)] [Also in Group XXXVII] To prevent destruction of the valve resistor 1 in a lightning arrester due to overheating resulting from excessive or persistent currents, a low melting point metal 10 is inserted between the earth terminal 21 and resistor 1, and a spring 15 acts to eject the terminal when the metal melts so as to rapidly open the earth circuit and give visual indication of disconnection. To permit removal of the metal for inspection the metal may form a hood secured to the end of a pin 9 extending from the earth terminal and threaded externally to engage in a complementary thread in the contact plate 3; or the metal may form a section in the length of the pin. Alternatively, the metal may be secured to the plate 3 and threaded to receive the pin (see also Group XXXVII).
Patent GB-1493676-A (GB)
Title: Antibiotic method and pharmaceutical compositions
IPC: A61K9/08
Filed: 1975-02-20
Abstract: 1493676 Cephalosporin derivatives ELI LILLY & CO 20 Feb 1975 [22 Feb 1974] 7111/75 Heading C2C [Also in Divisions A5- A6] Sodium 7 - (D - 2 - formyloxy - 2 - phenylacetamido - 3 - (1 - methyl - 1H - tetrazol - 5- ylthiomethyl) - 3 - cephem - 4 - carboxylate is prepared by (1) treating D-mandelio acid with formic acid to provide o-formyl mandelic acid; (2) treating this with thionyl chloride to provide D(-)O-formylmandelolyl chloride; (3) treating this with 7-amino-3-(1-methyl-lH-tetrazol-5- yl - thiomethyl) - 3 - cephem - 4 - carboxylic acid and (4) neutralizing the acid so formed with sodium 2-ethylhexanoate.
Patent GB-1038893-A (GB)
Title: Improvements relating to gas burners for combustion chambers
IPC: F23D14/00
Filed: 1964-02-20
Abstract: 1,038,893. Gas burners. SULZER BROS. Ltd. Feb. 20, 1964 [March 7, 1963], No. 7194/64. Heading F4T. A gas burner comprises a plurality of outer tubes 13 (Fig. not shown) supplied with gas and an inner tube 12 supplied with air concentrically disposed in each outer tube 13. The outer tubes 13 are secured to a plate 4 forming the end of a combustion chamber 3 and the inner tubes 12 are secured to a plate 5 disposed parallel to the plate 4. The tubes 12, 13 project from the plate 4 into the combustion chamber. The gas is supplied to the outer tubes 14 by a pipe 11, a distributer chamber 10, a tube 8 and the space between the plates 4, 5. Air is supplied to the inner tubes 12 through an annular space between the combustion chamber wall 2 and an outer casing 1. A tube 7 is disposed in the gas tube 8 and accommodates a pilot flame.
Patent GB-869664-A (GB)
Title: Positioning servo-motor means
Inventor: FIELDEN JOHN ERNEST
IPC: G05D3/14
Filed: 1958-03-06
Abstract: 869,664. Electric control systems. FIELDEN ELECTRONICS Ltd. Feb. 23, 1959 [March 6, 1958], No. 7202/58. Class 40 (1). [Also in Groups XIX and XXXVI] A movable member is positioned in accordance with an input signal by means of a reactance varied in accordance with both the position and the signal and controlling the amplitude of oscillations to control a motor positioning the member and restoring the amplitude of the oscillation. In the arrangement shown in Fig. 1, a moving coil meter 1 fed with the input signal positions and moving plate of a capacitor 5. The capacity of this capacitor determines the amplitude of oscillations produced by a transistor oscillator 12. The output of this oscillator is fed through transformer 20, rectified at 21 and controls the base-emitter current of transistor 23 the output current of which depends on the oscillator amplitude. The output controls a current amplifier 29 the output of which is in series with a metal filament lamp 30. A motor 31 is connected between the lamp and amplifier junction and the point 32 at a potential midway between that of the two supply terminals. A high output current causes the lamp resistance 30 to be very high and motor 41 runs in one direction; a low output current means that the lamp resistance is low and the motor reverses. Motor 43 operates a recording arrangement and positions the other plate of capacitor 6 to restore the amplitude of oscillations. Instead of positioning the other plate the plate may position a potential wiper to back-off the meter deflecting signal (Fig. 3, not shown). The output of the amplifier 29 may control the current in the transistor circuit which itself causes the current in another transistor to move in the opposite sense, motor 31 being connected between the collector resistors. The variable reactance 5 may take the form of a variable inductance. Capacitor 27 provides a rate signal to prevent hunting. Recording arrangement.-Motor 31 is mounted on a spring-loaded pivoted arm 48 so that a friction roller 44 carried on the motor engages the edge of a friction disc 46. The disc drives the balancing plate of the condenser through reduction gearing and through gearing 52 positions a pivoted sector carrying a recording pen 34 marking a clockwork driven chart 42.
Patent GB-1390183-A (GB)
Title: Mechanical handling
IPC: B66F9/12
Filed: 1971-03-17
Abstract: 1390183 Load handling attachments MORRELL MILLS & CO Ltd 6 March 1972 [17 March 1971 7 Oct 1971] 7344/71 and 46583/71 Heading B8H [Also in Division E2] A side spreader attachment for handling container traffic containers has a pair of downwardly open pockets 9, 10 for engagement with respective projections 25, 26 on a vehicle framework whereby the attachment may be removably mounted on said vehicle. A spring urged plunger (34) Fig. 3 (not shown) associated with each pocket engages in apertures 27, 28 in the projections when the same are inserted in the pockets. Lugs (70), Fig. 4 (not shown), are mounted on the upper front edge of the spreader for engagement with a corner casting of a container and have shoulders on their upper surface the depth (B) of which is greater than the clearance (A) between the lug and the opening in the corner casting, to prevent accidental withdrawal thereof. The lug may be withdrawn by pivoting same in the direction (C).
Patent GB-1038894-A (GB)
Title: Improvements in or relating to machines for wafering hay and like forage crops
Inventor: ROLL WALTER MATTHEW
IPC: B30B11/20
Filed: 1964-02-21
Abstract: 1,038,894. Wafering hay. DEERE & CO. Feb. 21, 1964, No. 7377/64. Heading A2B. A machine for wafering hay and like forage crops comprises a die annulus 10 having a plurality of circumferentially spaced die openings 16, a press wheel 46 for pressing the hay fed to annulus 10, through the die openings 16, the press wheel being mounted eccentrically to the axis A of the annulus 10. The press wheel rotates about its own axis B as it orbits the axis A. The wheel 46 is mounted on shaft 56 which is secured to coaxial shafts 68 and 70 and in such a way that the eccentricity of shaft 56 to shafts 68 and 70 is variable. Shaft 70 is in register with driving wheel 156. Connected to shafts 68 and 70 are cheek members 90 and 86 respectively, the cheek members embracing part of the wheel not in rolling contact with the annulus 10 and being joined by a cross-member 94 to form a pocket 108 to hold weights for balancing purposes. Mounted on shaft 68 is auger 166 with flights 168 for feeding the hay from chamber 38 to annulus 10. The rotor assembly is mounted in housing26 which is provided with reinforcing ribs 28.
Patent GB-253841-A (GB)
Title: Neck-tie supporter
IPC: A41D25/12
Filed: 1926-03-17
Abstract: 253,841. Harrison, J. B. March 17, 1926. Necktie retainers. - A necktie retainer comprises a U-shaped device of metal, bone, celluloid &c. having an open-ended key-hole slot. A in each limb, and a curved prong or pin B punched out of the material, or separatelv formed and attached. The back of the device is roughened with closely spaced V-shaped grooves. In use, the device is sprung over the shank of the collarstud between the head of the stud and the collar, and the tie is impaled on the forwardly projecting prong B.
Patent GB-731676-A (GB)
Title: Improvements in or relating to piezo-electric microphones
Inventor: BIAL WOLFGANG
IPC: H04R17/02
Filed: 1952-03-21
Abstract: 731,676. Microphones; diaphragms. N.S.F., Ltd. March 20, 1953 [March 21, 1952], No. 7417/52. Class 40 ( 4). The diaphragm of a piezo-electric microphone is formed of an inner dished part operatively connected to the crystal and disposed so that its periphery is spaced from the microphone casing, and a thinner and more flexible outer . part which is secured to the casing and provides a flexible support for the inner part. As shown, the microphone comprises a casing 1 which encloses a piezo-electric crystal 2 supported at three corners by pads 3, the other corner being attached by a pin 5 and adhesive 13 to the centre of a pyramidally-dished diaphragm part 8. A thinner and more flexible peripheral support part 9 is secured to the outer face of the dished part 8 and to the casing by an adhesive of the evaporative, pressure-sensitive or thermoplastic or setting types, both parts being formed from thin metal such as aluminium foil. During assembly, the edges of the part 9 are bent over the casing sides as shown in Fig. 1, and a central portion is subsequently removed to leave an aperture 14. In a modification, the diaphragm may be formed of several layers of different materials. In an alternative construction, the diaphragm is formed from a single sheet of material which has its outer region reduced in thickness by controlled etching, by scoring, or by the removal of thin slithers of material. Corrugations may also be formed at the periphery of the inner dished portion. Alternatively, the thickness of the inner portion may be increased either by a deposition process or by painting with plastic materials or varnishes.
Patent GB-898669-A (GB)
Title: A device for combating weeds by means of plant killing chemicals
IPC: A01M21/04
Filed: 1961-03-01
Abstract: 898,669. Depositing weedkiller. VIDME, T. March 1, 1961, No. 7496/61. Class 6(2). A device for delivering weed killer comprises a sponge 4 connected with a reservoir 1 containing weed-killing liquid through a secondary sponge 7 arranged between perforated plates 8<SP>1</SP> and 8<SP>2</SP>, the distance between which can be adjusted to vary-the liquid-carrying capacity of the sponge 7 and adjust the liquid supply to the sponge 4. The sponge 4 is pressed against a weed or on to the soil beneath the weed and compressed against the plate 8<SP>2</SP> to apply the liquid.
Patent GB-437496-A (GB)
Title: Improvements in taps or cocks
IPC: F16K1/02
Filed: 1935-03-11
Abstract: 437,496. Taps or cocks. RATCLIFF, W. K., RATCLIFF, W. D., and WOOLDRIDGE, E., 38, Norwood Road, Herne Hill, London. March 11, 1935, No. 7498. [Class 135] A tap or cock has a plunger 4 of a cross - section other than round which slides in a corresponding recess 4a in a cap or nut member 6 and which is actuated by a screwed spindle 5 rotatably mounted in the nut member 6 which engages a thread in the plunger 4. The spindle 5 is held in position and prevented from downward movement by a washer 8 which is forced into the recess 4<a> and bears against a collar 7 on the spindle.
Patent GB-1519242-A (GB)
Title: Ev apparatus for optically measuring concentrations of matter using a fluorescent indicator
IPC: G01N21/78
Filed: 1976-02-25
Abstract: 1519242 Measuring concentration using fluorescence MAX-PLANCK-GES ZUR FORDERUNG DER WISSENSCHAFTEN EV 25 Feb 1976 [28 Feb 1975] 07502/76 Heading G1A Apparatus for this comprises a housing containing a mono-chromatic light source 2 and a light measuring device 223, 3, 31 and further comprises an optode having a fluorescent indicator (in space 100) which responds to matter concentration changes, and membrane 105 permeable to and confronting the substance to be measured, and a wall 60 confronting and transparent to the monochromatic light. The required wavelength of the light 20 emerging from slit 233 is obtained by adjusting screw 234. Filter 221 removes any of the light 20, which is reflected, from the fluorescent light 22, which is focused on photo-cell 223. If several excitation beams are used there can be several modulators like modulator 4 with various modulation frequencies. Device 1000 is a heater. Base 61 may be blackened or have a reflective coating. In the embodiment of Fig. 2 (not shown) an image of the optode (103), which has a large area is focused on input screen (I) of image intensifier (7) so that concentration distribution can be displayed. A camera or plate film may be used instead. In Fig. 3 (not shown) oscillating mirrors (2000 and 2001) are used for scanning. The indicator may be sealed into a foil or a polymerized carrier material. In Fig. 4 (not shown) two optodes (101, 102) are in series between the end of a multifibre light conductor (2010) and membrane (8), permeable to gas but not to liquid and blackened or having a reflective coating facing the optodes. In Fig. 5 (not shown) five pairs of monochromatic filters are driven by synchronous motor (2501) so that fluorescent light is successively incident on five photo-cells (90-94). A thin light conductor (2080) is used as a catheter. The optodes may have indicators for O 2  and CO 2 . Indicators may be (3 methylumbelliferon) or pyrene butyric acid. An optode may be contained in a carrier particle containing also the matter to be measured.
Patent GB-326985-A (GB)
Title: A portable metallic structure
IPC: E04B2/58
Filed: 1929-03-07
Abstract: 326,985. Fillod, F. March 7, 1929. Portable huts of the type having hollow walls formed of opposed flanged metal plates, have the panels joined together by cross connectors formed of shaped metal strips 3, 5, the strips 3 having curved ends to grip the flanged ends 7 of adjacent panels on each side. Each panel is secured at its foot and head to angle-irons 7<1> and sole-plates 8<1>, and the tops of the walls are joined by a horizontally disposed metal platform 9 formed of flanged metal plates having their edges joined by slotted tubes or by pressed-over interlocking joints. The roof 13 is formed of metal with a depressed central portion adapted to slide on a central gutter 12 which may form a receptacle for the supply of water to the house. The roof rests on extensions 15 to the outer walls, which extensions may also be formed hollow.
Patent GB-828764-A (GB)
Title: Improvements relating to the manufacture of steel
IPC: C21C5/28
Filed: 1958-03-10
Abstract: A process for the manufacture of steel in a vessel provided with tuyeres for blowing gas through the metal from below and for blowing gas on to or into the metal from above comprises blowing a gaseous oxidizing agent containing a powdered dephosphorizing agent through the metal from below and on to or into the metal from above.  The reagent may be lime or other basic carbonate or oxide with or without fluorspar or other flux or may be a previously prepared slag.  The reagent may be ground to 2mm. (maximum) particle size and particles above 0.06 mm. added from above and those below 0.06 mm. added from below.  The gas used may be commercially pure oxygen, oxygen enriched air, a mixture of oxygen and steam or oxygen and carbon dioxide.  The reagent may be added during the whole conversion, or during a part only, in the latter case the conversion may be completed after deslagging, in the same or a different vessel.
Patent GB-1040103-A (GB)
Title: Improvements in and relating to a post and means for securing it to the ground
Inventor: BIRCH FRED PARKER
IPC: G09F7/18
Filed: 1964-02-24
Abstract: 1,040,103. Sign posts. NUNEATON ENGINEERING CO. Ltd. Feb. 22, 1965 [Feb. 24, 1964], No. 7671/64. Heading E1B. [Also in Division G5] A tubular post 10 carrying an announcement plate 24 is fitted over a shouldered ground spike 12 and secured by a recessed screw 17 or by the bolt of a lock operable by a key inserted through a hole 15. The plate 24, or a flanged bracket on the back thereof, engages a slot 18 and groove 19 in the post 10 and has slots 22, 23 engaging diametral pins 20, 21. The plate is secured by a screw 26.
Patent GB-696389-A (GB)
Title: An improved apparatus for delivering sheaves to a threshing machine
IPC: A01F12/14
Filed: 1951-04-03
Abstract: 696,389. Threshing-machines. IRVINE, A. May 8, 1952 [April 3, 1951], No. 7717/51. Class 58 An apparatus for delivering sheaves to a threshing machine comprises a drum or shaft, a disc positioned centrally thereof and oppositely directed Archimedian screws positioned one at each side of the disc, such than when fitted to a threshing machine and the drum or shaft driven, the sheaves fed thereto are divided into two parts which are spread out by the Archimedian screws prior to entering the threshing machine. As shewn sheaves fed on an endless belt conveyer a pass under two disc cutters h, h where the binding twine is cut, the loosened sheaves being then divided into two parts by a disc q mounted centrally on a rotating drum n on which also is mounted on either side of the disc Archimedian screws r, r of opposite hands which spread the divided sheaf over a shoot formed at the discharge end of the .conveyer housing e and which registers with the feed opening of a threshing machine. The disc cutter h may be omitted and the binding twine cut by the centrally located disc q. The conveyer may also be omitted and the sheaves fed to the Archimedian screws by a shoot.
Patent GB-1514772-A (GB)
Title: Sealing coloured and/or printed anodised aluminium
IPC: C25D11/24
Filed: 1976-05-25
Abstract: 1514772 Sealing anodized Al T B PURSER and T A SKINNER 25 May 1976 [25 Feb 1975]  7778/75 Heading C7B Anodized Al which may be coloured by one or more sublimatable inks is sealed in 15-25% NaCl aqueous solution at pH 6-10, preferably at or near the boiling temperature in demineralized water.