baber/WOPTO huggingface dataset:
Patent GB-280633-A (GB)
Title: Improvements in the protection of overhead electric lines
IPC: H02G7/18
Filed: 1926-08-17
Abstract: 280,633. British Thomson-Houston Co., Ltd., and Clough, F. H. Aug. 17, 1926. Drawings to Specification. Cut-out arrangement.-In overhead transmission lines, particularly tight metal lines, in order to ensure the operation of circuit-breakers upon a break occurring in the conductors, the latter are so arranged that a broken one must touch another in falling. The conductors are so transposed upon the insulators that the line is given a continuous twist. Preferably the conductors are secured to insulators at receiving intervals and loosely supported upon intervening ones so that a broken conductor may fall in a number of spaces and ensure a short-circuit.
Patent GB-724628-A (GB)
Title: Improvements in control switches for electric motors
IPC: H01H61/00
Filed: 1953-07-22
Abstract: 724,628. Temperature-responsive actuating- elements. GENERAL MOTORS CORPORATION. July 22, 1953 [Aug. 5, 1952], No. 20311/53 Class 64 (2). [Also in Group XXXVII] A control switch for an electric motor (see Group XXXVII) comprises a rib 42 of insulating material to which is riveted a U-shaped bi-metallic member 65 with one leg 46, forming the starting member, having its high expansion side facing outwardly from the centre of the base of the switch. The rib 42 also carries an ambient temperature-compensating strip 48 also having its high expansion side facing outwardly, the adjacent movable ends of the strips 46, 48, being connected by a toggle leaf spring 50. The end of the strip 48 is notched while the adjacent end of the strip 46 has an aperture for receiving the notched end of the spring 50 which biases the starting strip to the position shown. A bi-metallic member 57 has one end anchored to terminal 60 and its portion 157 bent at right angles and provided with a U- shaped portion with an arm 63 engaging the strip 46. A localized coating 146 of insulating material is provided on the strip 46. When heated, the strips 46, 57, will deflect toward each other. A ribbon type electric heater 64 is riveted at its lower end to the yoke portion of the member 65 and is connected to the part 157 of the strip 57 at 164. The compensating strip 48 is provided with a stiffening rib 491 which controls its movement under changes in ambient temperature. The lower portion of of the member 65 is provided with a cantilever overload bi-metallic strip 66 which is compensated for ambient temperature by means of strip 76 and toggle spring 78.
Patent GB-890550-A (GB)
Title: Improvements in or relating to the vacuum-packing of edible and like products in containers
IPC: B65D81/20
Filed: 1960-06-09
Abstract: <PICT:0890550/III/1> A catalytically-active composition for internal application to p  airtight containers, whereby residual oxygen therein may be removed by introducing hydrogen into the container as it is sealed, comprises palladium in finely-divided form dispersed in an adhesive medium.  Examples given are palladium-on-alumina powder dispersed in either a can internal-lacquer or a polyvinyl chloride plastisol.  The coatings may be applied by brushing. Annular grooves 3 in the lid or bottom component 1 of a can are coated with a catalyst dispersion 2 in the form of one or more annular concentric layers by rotating the component past a nozzle from which the dispersion issues; after deposition the component is heated in an oven to gel the dispersion.ALSO:A catalytically-active composition (see Group III) for internal application to airtight containers (see Groups VI and XVII) comprises a palladium-on-alumina catalyst dispersed in a polyvinyl chloride plastisol.
Patent GB-257271-A (GB)
Title: Telephone with free vibrating diaphragm surface
IPC: H04R7/22
Filed: 1926-08-18
Abstract: 257,271. Neufeldt & Kuhnke Betriebsges, (Assignees of Neufeldt & Kuhnke). Aug. 19, 1925, [Convention date]. Diaphragms. - A diaphragm for telephones and the like is constructed and fixedly mounted so that the part of its surface which vibrates has no surface contact with the casing or earpiece and is thus substantially free from all stresses except those due to the magnetic system, and the telephone casing may be constructed with a double step of fixed dimensions so that a constant volume sound chamber is provided. In Fig. 1, the diaphragm M is made of rigid sheet material with a turned-down flange a, Fig. 1, which engages a stepped part of the casing K, is secured by adhesive, or by a bayonet joint, and lies entirely clear of the earpiece H which engages a second step on the casing. In a modification, the diaphragm is convex towards the earpiece and makes only a circular line contact with the casing over which the flange grips. In another modification, the turned-down flange of the diaphragm may be kept outwardly and firmly clamped between the casing K and mouthpiece H, Fig. 3. When a curved diaphragm is employed it is preferably substantially flat at the part directly opposite to the magnets. A stop in the casing may be provided to prevent excessive distortion which would result in buckling.
Patent GB-222459-A (GB)
Title: An arrangement for utilising the combustible gases collecting in the crank cases of internal combustion engines
IPC: F01M13/04
Filed: 1924-08-28
Abstract: 222,459. Gatta, S., and Constantini, A. Sept. 24, 1923, [Convention date]. Spray carburettors.-Inflammable gases which collect in the crank case are conveyed to the carburettor 4 or the induction pipe through a separator 2 for liquid particles, and a pipe 3.
Patent GB-1418780-A (GB)
Title: Apparatus for assembling wires cables and the like in a pre determined configuration
IPC: H01B13/012
Filed: 1973-05-01
Abstract: 1418780 Assembling wire and cable forms PLESSEY CO Ltd 9 April 1974 [1 May 1973] 20605/73 Heading B3A Forming apparatus 2 for assembling wires, cables and the like in predetermined configurations comprises an assembly panel 4 having a front face 12, a rear face assembly guide members 8 projecting from the face 12, and light guides 10 for conducting a plurality of sets of light spots to the panel each set indicating the guide members around which a wire, cable or the like is to pass. Each guide member 8 comprises a hollow pin to which is attached a light guide 10 which is in the form of an optic fibre. The ends of the fibres remote from the panel 4 are concentrated into a matrix and tape feed mechanism 6, where their ends terminate in a flat plane over which passes a punched tape 7. As each frame of the tape is moved to beneath a light source 5, a different sequence of light beams is passed through the optic fibres. When the wire has been wound round the illuminated pins, it is cut and the free ends are held in spring coils (not shown), and when all the wires have been laid, they are bound together with waxed twine. Alternatively the guide pins may be solid, in which case the optic fibres are located alongside of them and the panel may include an illuminable screen section for displaying information to the operator of the apparatus. The punched tape may be replaced by either film strip or film slides and the tape, film or slides may be advanced frame by frame by electric or pneumatic means.
Patent GB-1396033-A (GB)
Title: Frame for glass panes
IPC: E06B1/38
Filed: 1972-05-03
Abstract: 1396033 Glazing assemblies HOECHST AG 3 May 1972 [5 May 1971] 20611/72 Heading E1R A glass pane 1 is mounted in a plastics frame 2 by means of spaced plastics clips 4 having snap-action inter-engaging ribs and slots 44, 45 and a plastics trim member 3 mounted on the clips 4 by similar ribs and slots 46, 47. Wedges 9 support the pane 1 between the clips 4. Packing and spacer members 5, 7 and sealing members 6, 8 are located as shown. For Figure see next column
Patent GB-924366-A (GB)
Title: Improvements in or relating to machines for processing pears
IPC: A23N4/14
Filed: 1961-06-07
Abstract: 924,366. Pear-processing machines. J. A. KEMP. (Atlas Pacific Engineering Co.). June 7, 1961, No. 20631/(6). Class 28 (2). In an apparatus for processing pears, e.g. for canning, each pear is placed in turn in a cup 65 in which it is centred and held in position by gripping arms 69, the cup then assuming a horizontal position (Figs. 1 and 7) and moving forward on a cup carriage 61, locked to a sliding reciprocating carriage 45, so as to impale the pear coaxially on a hollow spindle 7 rotatably journalled in the front panel 3 of the machine frame 1. When sufficiently impaled the end of the pear pushes against a rocker arm 136 the other end of which carries a rack 142 which engages a detent 143 to trip a spring-biased latch rocker arm 101 thereby disengaging the carriage 61 from the driven carriage 45 and allowing it to move back leaving the pear impaled on the spindle 7. An arcuate coring knife 203 located on an advancing bar 201 then enters the pear and at the same time a calyx-end trimming knife 204 (also carried by bar 201) and a stem-end trimming knife 216 (Fig. 11) move into operative positions, a notch on the knife 216 straddling the spindle 7. The pear is then rotated by the spindle and at the same time as endtrimming and circular cutting around the seedcell pod core are effected the pear is peeled by a knife-carrying assembly 178 which has moved into position and which closely follows the pear contours. These operations completed, jaws (not shown) close upon the pear and hold it stationary against rotation of the spindle 7, arcuate wire knives 33 secured to the forward ends of fins 31 on the spindle 7 severing the forward end of the cylindrical seed cell pod core from the pear. The pear is then pushed off the spindle by an advancing fork 294 through sectioning knives 282, 283 which have previously closed together so that a finger 289 on an arm 288 depending from knife 282 engaged in a notch 32 in the fins 31 and disintegrated the seed-cell pod core when the pear was rotated. During the pushing-off of the pear the finger 289 ensures extraction of the pod core. Stem core is pushed out of the spindle 7 by a reciproeating rod 241 and a plate 324 beneath deflects waste in one direction and then moves to direct the processed pear in a different direction. Fig. 25 shows a processed half of a pear. The various processing devices are operated in correct sequence through cams, ratchets, racks, pivoted levers and chain-and-sprocket assemblies by means of a constantly driven shaft 23. Specification 924,367 is referred to.
Patent GB-592756-A (GB)
Title: Improvements in or relating to aircraft
IPC: B60V1/00
Filed: 1944-10-24
Abstract: 592,756. Jet-propulsion plant. WARNER, D. K. Oct. 24, 1944, No. 20645. [Class 110 (iii)] [Also in Group XXXIII] An aircraft comprises a fuselage 33 having beneath it an open-pressure chamber 17 for the discharge of a power jet, an engine 22 driving a compressor fan 8 set above an aerofoil 2 and discharging at least partly into the pressure chamber, side members defining the sides of the chamber and restricting the lateral flow of gases therefrom, and a downwardly and rearwardly extending flap 3 at the forward end of the chamber between the side members, which flap is pivotally attached adjacent its forward edge to the fuselage and is adapted to restrict the forward escape of gases from the chamber, the arrangement being such that pressure in the chamber acting on the fuselage and against a supporting surface below the aircraft produces lift. The engine exhaust is led by a pipe 15 to a diffuser 13 in order to augment the gas flow, and at take-off fuel from a tank 20 may be fed to the diffuser mouth by a pipe 16 surrounding the exhaust pipe, the fuel being vaporised by the latter. Pivoted aerofoil-section vanes 23 may be provided near the base of the chamber 17 to vary the outlet area and the direction of outflow of the gases.
Patent GB-441382-A (GB)
Title: Improvements in or relating to roller mills for grinding paint and other substances
IPC: B02C4/40
Filed: 1934-07-14
Abstract: 441,382. Roller mills. PINCHIN, JOHNSON, & CO., Ltd., (trading as DOCKER BROS.), and LEWIS, C., Rotton Park Street, Ladywood, Birmingham. July 14, 1934, No. 20692. [Class 59] In a roller mill for paint &c., means are provided on the de livery roll whereby the coarser materia at the ends of the roll is collected separately from that on the medial portion of the roll and is led back t( the feed side of the mill. As shown, a deflector plate 2 is slidably mounted on a plate 4 which is pivoted to the edge 5 of the tray or scraper 1. The deflector 2 is adjusted angularly by nut 8 and quadrant 6 and may be moved toward the roll by a sliding movement along the plate 4. The material removed from the end of the roll is discharged through the end portion 3.
Patent GB-1152318-A (GB)
Title: Distributor Rotor
Inventor: FOLEY BARTLEY FRANCIS
IPC: F02P7/02
Filed: 1968-05-02
Abstract: 1,152,318. Spark-jump rotary distributions. FORD MOTOR CO. Ltd. 2 May, 1968, No. 20771/68. Heading H1N. The rotor 1 of a spark-jump distributer is made of plastics material with a recess 13 in which the end 23 of a contact arm 21 and end 17 of a spring contact 15 are secured by means of epoxy resin 28. A tongue 20 extending from the spring end 17 engages a small projection 25 on the arm end 23 to establish electrical connection. In a second embodiment the recess 13 is elongated (Fig. 2, not shown) and a resistor (29), embedded in the resin 28, interconnects the projection 25 and tongue 20. A barrier 27 is formed on the upper surface of the rotor to prevent flash over.
Patent GB-889586-A (GB)
Title: Derivatives of 3-methyl-spiro(2h-1-betanaphthopyran-2,2[2h-1-benzopyran])
IPC: G03C1/685
Filed: 1960-06-14
Abstract: The invention comprises compounds of the formula <FORM:0889586/IV (b)/1> and their derivatives having in the 51, 61, 71 and/or 81 positions substituents selected from CH3, CH2CH3, CH(CH3)2, C(CH3)3, C6H5, CF3, CN, COCH3, CO2C2H5, CO2H, NH2, NHCH3, N(CH3)2, N(CH3)3+, NHCOCH3, NO2, PO3H-, OCH3, OC2H5, OCH2CH2CH3, OC6H5, OH, OCOCH3, SCH3, SH, SCOCH3, SCN, SOCH3, (methyl sulphinyl), SO2CH3 (methyl sulphonyl), SO2NH2, S(CH3)2+, F, Cl, Br, I, IO2,C H2CH= CH2 and CO2CH3; these substituents are to be sterically compatible as defined below, and each substituent in each position has a definite "Ri" value (given in a Table), the substituents being selected so that the algebraic sum of the Ri values is positive.  These compounds are colourless in solution, but on irradiation with electromagnetic radiation predominating in visible components the 21-11 bond is broken and the compounds are coloured; irradiation with radiation predominating in ultra-violet components reverses the process. "Sterically compatible" substituents are those which do not hinder the breaking of the 21-11 bond on irradiation.  The compounds in solution can be used to sensitize record materials for the recording and erasing of data by the appropriate radiation.  These compounds may be prepared by condensing the Ri-substituted salicylaldehyde with methyl ethyl ketone, condensing the product with 2-hydroxynaphthaldehyde-1, adding ethyl ether to form a precipitate, separating the ether layer, and removing the ether. An example prepares the 61-nitro derivative in this way.
Patent GB-601618-A (GB)
Title: Improvements in or relating to brakes for light vehicles
IPC: F16D65/14
Filed: 1945-08-13
Abstract: 601,618. Brakes for light vehicles. SOC. ANON. DES USINES CHAUSSON. Aug. 13, 1945, No. 20796. Convention date, Sept. 9, 1943. [Class 103 (i)] A brake comprising two floating shoes 2 and 3 connected by a floating pivot 4 is operated by a Bowden cable of which the sheath 11 is connected to one shoe 3 while the cable 12 is connected to the other shoe 2. One of the shoes, according to the direction of rotation anchors on the fixed stop 5, while auxiliary stops 6, 10 co-operate with cam surfaces 7 to guide the shoes. The shoes 2, 3 may be formed as dished plates between which the Bowden cable passes. The Bowden cables operating all the brakes on a vehicle may be secured to a common operating means comprising a fixed plate to which the sheaths are secured and a movable plate to which the cables are attached, and means for adjusting wear comprising an adjustable threaded connection of each cable or of each sheath to the corresponding plate may be provided.
Patent GB-571632-A (GB)
Title: Improvements relating to can opening appliances and machines
IPC: B67B7/46
Filed: 1943-12-13
Abstract: 571,632. Can-openers. FRAY, Ltd., J., and FRAY, B. G. Dec. 13, 1943, No. 20815. [Class 66] A can-opener grips the can e between the cutter blade o and the traction wheel i which is turned by a crank handle h to rotate the can so that the cutter o, which is on a lever n held in operative position by a spring p, cuts out the end of the can. The wheel i, which may have ratchet teeth, can move axially, against the pressure of a spring housed in its bearing f, so as to accommodate the extra thickness of the joint in the wall of the can. The lower part of the can bears against roller c. The appliance may be secured to a wall by a bracket part b.
Patent GB-1309663-A (GB)
Title: Photoelectrophoretic imaging system
IPC: G03G17/04
Filed: 1970-04-30
Abstract: 1309663 Photo-electrophoretic imaging XEROX CORP 30 April 1970 [2 May 1969] 20904/70 Heading G2H A photo-electrophoretic imaging system has a blocking electrode 18 comprising conductive pins 44 (or strips, segments etc.) which are electrically insulated from each other. As electrode 18 rolls across an electrode 10, a contact 42 slides over the pins and applies a potential only to that portion of electrode 18 which is in contact with electrode 10. This suppresses electrical arcing. The pins may be spaced so as to form a half-tone image. In Fig. 1 (not shown) different groups of pins are subjected to different potentials.
Patent GB-1129215-A (GB)
Title: Process for the preparation of isomalic acid through hydrolysis of the 1-acetoxy-1,1-dicyanoethane with strong mineral acids
IPC: C07C51/08
Filed: 1967-05-05
Abstract: 1,129,215. Isomalic acid. MONTECATINI EDISON S.p.A. 5 May, 1967 [6 May, 1966; 17 May, 1966], No. 21002/67. Heading C2C. Isomalic acid is prepared by the hydrolysis of 1-acetoxy- 1,1 -dicyano-ethane with an aqueous solution of sulphuric or hydrochloric acid at a concentration of from 25-80% by weight in the molar ratio of from 2 to 4 moles of sulphuric or hydrochloric acid for 1 mole of 1 -acetoxy- 1,1 - dicyanoethane at from 45 to 90 C. The free acid is neutralized after the hydrolysis and the isomalic acid extracted by an organic solvent (B.P. not above 100 C.), e.g. an alkyl ether, aliphatic alcohol, aliphatic ketone or carboxylic ester and recovered by evaporation of solvent or concentration and crystallization. In a preferred method a two-stage hydrolysis is used with a dilute, then a more concentrated acid.
Patent GB-879506-A (GB)
Title: A process for the purification of olefines
Inventor: SOUTHERN DEREK
IPC: C07C7/12
Filed: 1960-06-15
Abstract: Olefins are purified by mixing with silica heated to at least 100 DEG C. and separating the olefins from the slurry formed.  The olefin may be a straight chain, preferably alpha, olefin or mixture of olefins obtained by Fischer-Tropsch synthesis, dehydrating alcohols, polymerising propylene or butylene, or the thermal or catalytic cracking of petroleum oils or waxes and may have been urea extracted. The process is particularly suitable for purifying normally liquid, C5-C18 olefins; higher olefins are liquefied by heating and lower olefins by pressurising.  The silica is preferably activated silica gel having an average B.S.S. mesh size between 70 and 150, a silica content of at least 98% and a surface area of at least 500 m.2/g. The silica and olefin are agitated together for 10-45 minutes, e.g. with a Vibro-mixer, the temperature not being allowed to drop below 30 DEG C.  The olefin is separated by distillation, centrifuging or filtration and is suitable for Ziegler polymerisation or preparing alkyl benzene sulphonate detergents.  Specifications 657,496, 671,456, 671,457, 671,458, 681,246 and 725,598 are referred to.
Patent GB-1036586-A (GB)
Title: Improvements in and relating to suction devices more especially for lifting objects
Inventor: DUTHION LOUIS
IPC: B25B11/00
Filed: 1963-05-27
Abstract: 1,036,586. Suction lifting devices. BERTIN & CIE. May 27, 1963 [Nov. 5, 1962], No. 21040/63. Heading B8H. Compressed air passing from a jet 7, Fig. 1, into a pipe 4 produces a reduction in pressure in the space under a plate 1 provided with a gasket 3. A non-return valve 10 which may be opened by a handle 11 prevents loss of suction if the compressed air is cut off. Fig. 2 shows a higher capacity embodiment having several jets 15 arranged around a feed pipe 6. Air is sucked out from the space below the plate 1 and emerges from between plates 12 and 1. The gasket 18 is inflated by the compressed air supply through ducts in the plate 1. Non- return valves are again provided. Partitions 17 may be provided. A highly flexible gasket 26, Fig. 3, of cellular or granular material covered with a protective layer may be combined with resilient stops 27. Alternatively a curtain-type gasket, Fig. 5, may be used or an asbestos gasket for lifting hot articles. A vapour or liquid may be used instead of compressed air.
Patent GB-1131354-A (GB)
Title: Improvements relating to the treatment of inorganic dust
Inventor: SINGLETON FRANK HENRY
IPC: C01D3/08
Filed: 1966-05-16
Abstract: 1,131,354. Potassium sulphate; alkali metal chlorides. WOODALL DUCKHAM Ltd. 20 July, 1967 [16 May, 1966], No. 21387/66. Heading C1A. Alkali metal salts are extracted from cement kiln flue dust by (i) digesting with a strong solution of KCl (capable of dissolving alkali metal chlorides but not K 2 SO 4 ), optionally containing NaCl; (ii) separating the solid and extracting alkali metal chlorides from the solution; (iii) digesting the solid with a solvent for K 2 SO 4 ; (iv) separating the solid and extracting K 2 SO 4  from the solution. In continuous operation, the solvent for K 2 SO 4  may be a strong solution of K 2 S0 4  recycled from (iv) after extraction of some K 2 S0 4  and the chloride solution for (i) may be recycled from (ii) after extraction of some salts. Both digestion stages may be carried out at 60‹ to 100‹ C., steam being added to supply heat: carbon dioxide may also be supplied to insolubilize calcium contained in the solids. The treated dust may be pulped or pelletized and recycled to a cement kiln.