baber/WOPTO huggingface dataset:
Patent GB-1346231-A (GB)
Title: Filter made of electrostatically spun fibres
IPC: D04H13/00
Filed: 1971-06-23
Abstract: 1346231 Gas filter material; electrostatic separation BAYER AG 23 June 1971 [29 June 1970] 29419/71 Headings BIT and B2J [Also in Divisions B5 and D1] A fibre filter comprises a gas permeable support layer which carries a fibre fleece, the fleece having been produced by electrostatically spraying an organic solution on to a conductive support. Apparatus for forming the fleece comprises an annular electrode 8 which rotates through a tank 7 of the organic solution. The fleece forms on belts 5 which carry a pre-placed coarse backing material and which are charged oppositely to the electrode 8. The polarity of the electrodes may be alternated to give an alternating residual charge in successive layers of the formed fleece which enhances the dust catching properties of the filter. Two fleeces formed as described above may be combined to provide a reinforcing layer on both outside surfaces. Examples of suitable organic polymers and solvents are given.
Patent GB-1391352-A (GB)
Title: Heat transfer
IPC: C07C2/70
Filed: 1972-06-23
Abstract: 1391352 Heat transfer medium NIPPON PETROCHEMICALS CO Ltd 23 June 1972 [8 July 1971] 29435/72 Heading C4X In a heat transfer process the heat transfer medium comprises one or more aromatic hydrocarbons of formula wherein each of R 1  and R 2  is H, CH 3  or C 2 H 5 , at least one of R 1  and R 2  being CH 3  or C 2 H 5 . The hydrocarbons may be obtained by the reaction of styrene with xylene or another, C 8  aromatic, e.g. ethylbenzene, or toluene.
Patent GB-136535-A (GB)
Title: Improvements in Nut Locking Devices.
Inventor: DURAND ANTOINE
IPC: F16B39/10
Filed: 1919-11-27
Abstract: 136,535. Durand, A. Dec. 12, 1918, [Convention date]. Locking nuts.-A disk-shaped washer a on a bolt &c. has thin walls deformed by a blow to engage the nut c and lock it in position. The underside of the washer is serrated to engage the work. In a modification, the locking-washer is made of uniform thickness throughout, and another washer with serrated faces arranged between it and the work. In another modification, a plain washer with a tongue is employed, the tongue being struck up to engage the nut.
Patent GB-487123-A (GB)
Title: Endless track vehicle
IPC: B62D55/075
Filed: 1937-10-29
Abstract: 487,123. Endless - track vehicles. ZAVODY RINGHOFFER-TATRA AKCIOVA SPOLECNOST. Oct. 29, 1937, No. 29621. Convention date, Nov. 3, 1936. [Class 79 (i)] Each track carrier or frame comprises three sections 1, 2, 3, the end sections being pivoted at 8, 9 to the centre section 2 so as to be angularly-movable relatively thereto, a single track a being passed round the guiding and driving pulleys 4, 6, and the supporting rollers 5. The end sections 1, 3 may be arranged as shown for normal running so that the end parts of the lower run of the track are inclined upwardly, or the sections may be inclined (1) downwardly, the whole of the lower run of the track being horizontal for crossing ditches, or (2) upwardly, so that the end parts of the track are steeply inclined upwardly for climbing high obstacles. The end sections may be adjusted by hand or power means. The upper run of the track is supported by rollers 7 which may also serve for tensioning the track.
Patent GB-1517353-A (GB)
Title: Sliding gate nozzle for vessels
IPC: B22D37/00
Filed: 1975-07-15
Abstract: 1517353 Sliding gate nozzle STOPING AG 15 July 1975 [17 July 1974] 29651/75 Heading F4B In a sliding gate nozzle of a vessel for liquid melts, the sliding member comprises a metal carrier 11 with bearing surfaces 14 and containing a refractory plate 9 and adjustable screws 28 (Fig. 9). The bearing surfaces of the sliding member move on ways 15 in a cover 16 (Fig. 1) and for smooth operation of the nozzle the refractory plate 9, must be embedded in a bedding composition in the carrier 11 so that the surface 27 of the plate 9 is parallel with the bearing surfaces 14. To ensure this, the sliding member is assembled in a jig 19 (Figs. 4, 5 and 6). Bearing surfaces 14 of the metal carrier 11 are placed on jig surfaces 30 and the outlet bush 13 and sliding plate 9 placed in the dry slide so that outlet bush 13 rests on an adjustable plate 20. A guage 24 is placed on slide 11 so that the gauge coplanar bearing surfaces 18 make contact with slide reference surfaces 25. The gauge 24 is held in position by screw press 29. Refractory members 9 and 13 are then raised by plate 20 so that there is a gap of 2 mm. between face 27 of plate 9 and the reference surface 26 of the gauge 24 (Fig. 5). The sliding plate 9 alone is then lifted by screws, 28 until face 27 is in contact with reference surface 26 to give the desired relative positions for use shown in Fig. 6. Screw press 29 is then released and mortar applied to refractory parts 9 and 13 and the parts reassembled in the jig. The press 29 is screwed down and forces out excess mortar so that the surfaces are again in the Fig. 6 position. Screws 28 prevent sliding plate 9 sinking in the slide 11 while the mortar is hardening. A cylinder 26 may be used for centrally aligning the plate 9 and bush 13 during assembly. Instead of the screws 28, other spacing elements such as wedges and cams may be employed. The fixed part of the nozzle comprising the carrier 11a and plate 8 may be assembled in a similar way to that described above.
Patent GB-1477738-A (GB)
Title: Packaging method and apparatus
IPC: B65B55/06
Filed: 1974-07-04
Abstract: 1477738 Packaging materials under pressure GATRUN ANSTALT 4 July 1974 [4 July 1973] 29763/74 Heading B8C In an apparatus for packaging material in containers 3 which are heat formed in a plastics web 2 and sealed by a web 10 of metallic material covered with a thermoplastic material, the webs 2 and 10 enter a pressure chamber through respective air locks 25 and 45 and the filled and sealed containers leave the pressure chamber through an exit air lock 12 Each of the air locks 24, 45 comprises an entry slot 26 for the web and lips 28 which seal against the web. The exit air lock 12, Fig. 2, comprises a fixed upstream valve 80 and a downstream valve 81 which can be moved with and against the flow of sealed and filled containers. The fixed valve 80 includes a partition 88 having an aperture through which the containers can pass, and valve members 90, 91 which are engageable with the opposite faces of web portions connecting adjacent containers to close said aperture. One or both of the valve members 90, 91 is movable by a respective piston and cylinder assembly 93, 94. The movable valve 81 comprises a block 95 having a bore in which a piston member 97 is slidable upon actuation of a piston and cylinder assembly 98 The piston member 97 has a passage through which the container can pass and carries a fixed valve member 103 which is slidable in guide slots 104 by a piston and cylinder assembly 106 for closing the passage. As shown the pressure chamber encloses stations 4 and 6 for heating and forming the web 2, a filling station 7, a closing station 9 and a cooling station 11 which includes a bath 54 of refrigerated liquid. The chamber comprises three sections 5, 8 and 11 each of which is provided with a control thermometer 68, 69, 70, a pressure safety valve 71, 72, 73 and a conduit 74, 75, 76 for feeding pressurized gas The chamber 82 of the exit air lock 12 can also be supplied with pressurized gas through a conduit 107. In the operation of the apparatus the pressure in the chamber section 8 can be adjusted to prevent boiling of hot, sterilized material in the containers The containers are separated from one another at a cutting station 13. Chain conveyers 56, 57 which carry grippers for gripping the webs 2 and 10, intermittently move the webs through the apparatus, conveyer 57 moving in greater steps than conveyer 56 to tension the webs. Spacers, such as 109, 110 may be used to lengthen the chamber.
Patent GB-178408-A (GB)
Title: Improvements in apparatus for preventing a maximum speed in machinery from being exceeded
IPC: B66B5/06
Filed: 1921-11-08
Abstract: 178,408. Siemens - Schuckertwerke Ges. April 12, 1921, [Convention date]. Addition to 177,133. Gearing for stopping machinery.-Apparatus as described in the parent Specification and in which the first tripped member is provided with a delaying-device to impede its restoration after being tripped, is arranged so that the delaying- device is separate from the tripped member, so that it can be set up in a sheltered position convenient for inspection. The modified apparatus is illustrated as applied to the control of a lift cage. The cage e closes a switch a and opens a switch b in passing. The switches are arranged to fly back to their original positions immediately they are released. The closing of the switch a opens the delaying-relay b<1>, which can be set so that it takes a definite time to re-close after the circuit has been broken by the re-opening of the switch a. If the speed of the cage is such that the switch b is opened before the relay is closed, the magnet coils f are de-energized and the brake applied to the drum h.
Patent GB-627261-A (GB)
Title: Improvements in packages
IPC: B65D85/671
Filed: 1946-10-08
Abstract: 627,261. Packages. BURGESS, A. F. (United Wallpaper, Inc.). Oct. 8, 1946, No. 30012. [Class 94(i)] A package comprises two rolls of wallpaper 10, 11, one of which is composed of a strip of paper of length greater than the strip of paper comprising the other of said rolls, the roll 11 of said shorter strip of paper being rolled on a cylindrical core 12 of diameter such that the external diameter of the roll is equal to the external diameter of the roll 10, said two rolls of paper 10, 11, being placed in end-to-end engagement with their axes in alignment, and a transparent wrapper, such as a prepared cellulosic film 13, encloses said rolls 10, 11, the decorative surfaces being outside. An end disc 17, on which may be printed matter, acts as a surface to form the folds 15 and defines a space 18 for accommodating literature. The core 12 may be omitted. The longer roll may also be wrapped on a core. Specification 578,056, [Group X], is referred to.
Patent GB-629521-A (GB)
Title: A tool for cutting grass or the like
IPC: A01D1/04
Filed: 1947-11-12
Abstract: 629,521. Grasscutters. BIJLEVELD, H. O. B., and NAAMLOOZE VENNOOTSCHAP HANDELMAATSCHAPPIJ RIJKE & VAN HAM. Nov. 12, 1947, No. 30131. Convention date, July 1, 1942. [Class 6(iii)] A grass-cutting knife consists of a plate to one or more edges of which blades 4 are fixed while the rear edge 6 carries a handle 2 in offset parallel relationship.
Patent GB-1001414-A (GB)
Title: Electrically heated hot water apparatus having a thermostat
IPC: H01H35/40
Filed: 1961-08-21
Abstract: 1,001,414. Temperature-responsive actuating-elements. A.ECKERFELD. Aug. 21, 1961 [Aug. 26, 1960], Heading G1D. [Also in Divisions H2 and H5] A water heater comprises a metallic, resistance-heating element in direct contact with the water in a heating channel, and a thermostat comprising a dilation body extending along the heating coil. As shown, a continuous-flow heater comprises a heating channel 11, Fig. 1, and resistor channels 13, 14 formed in a plastic body 10. The power supply is controlled by a switch 17 which is closed, under the action of diaphragm 19, as soon as water is tapped. The heating coil 12 is surrounded by a tube 24 of low pressure polyethylene which has a high coefficient of expansion. Overheating of coil 12 causes tube 24 to expand and actuate levers 26, 28 and switch 23 to interrupt the power supply. Alternatively, in a continuous-flow heater or boiler, the heating coil 37, Fig. 3, may be wound on a low pressure polyethylene tube 36. Current is supplied to coil 37 through switch 49, leaf spring 39, brass rod 38 and spider 43 which is spring-urged against the lower end of tube 36. Entry of cold water causes tube 36 to shorten and switch 49 to close, whereas overheating causes switch 49 to open. Specification 1, 001, 415 is referred to.
Patent GB-664040-A (GB)
Title: Treatment of textile materials in package form
IPC: D06B5/16
Filed: 1949-11-24
Abstract: <PICT:0664040/IV (c)/1> Textile material in filament form, e.g. yarns, tow, sliver or roving, is treated in package form with a fluid and the flow of fluid through the package is interrupted at intervals. Preferably the flow is interrupted at intervals of 10 seconds to 10 minutes for periods of 10 to 40 seconds.  By this means, the total time of treatment may be reduced.  The process is particularly applicable to the saponification of filaments of cellulose acetate or other cellulose ester.  Suitable apparatus comprises a perforated support 12 carrying the cake 15 and clamped between plates 17 and 19, the whole being enclosed in a vessel 23. Saponifying liquor is fed to the centre of the cake through a metering orifice 31 by the pump 25, and the flow is automatically interrupted at intervals by means of the device 28 which operates a valve 27 in the supply line 26.
Patent GB-1161844-A (GB)
Title: Improved Heat-Resistant Alloy Steel for Large Forgings.
Inventor: RIDAL KENNETH ARNOLD
IPC: C22C38/54
Filed: 1967-06-29
Abstract: 1,161,844. Alloy steels. ENGLISH STEEL CORP. Ltd. June 14, 1968 [June 29, 1967], No.30166/67. Heading C7A. A heat resistant alloy steel consists, by weight, of C 0À2-0À3% Si < 0À3% Mn 0À4-1 % Ni 0À4-1% Cr 0À7-1À4% Mo 0À5-1À5%  V 0À25-0À4% Nb 0À03-0À15% B 0À002-0À1% Fe Balance (except for impurities and incidental constituents). Preferably P and S should each not exceed 0À04%. The steel may be austenitized at 950‹ -980‹ C., cooled in air, steam, water-mist or oil, and then tempered at 650‹ -720‹ C. It is suitable for the manufacture of large forgings for steam turbine rotors.
Patent GB-1426395-A (GB)
Title: Semiconductor devices having a schottky junction
IPC: H01L29/00
Filed: 1973-06-26
Abstract: 1426395 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 26 June 1973 [29 June 1972] 30176/73 Heading H1K The barrier height of a Schottky junction between a region of a semi-conductor body and a first metal layer on which is located a second metal layer which does not directly contact the semi-conductor is made higher than that which either of the two metals would exhibit individually with the semi-conductor region. Preferably the metal of the first layer has a smaller individual barrier height with the semiconductor region than the metal of the second layer. Examples are A1 on Ni or Co on N-type Si. The two metals are successively vacuum deposited, preferably without breaking the vacuum between the two deposition stages, and the increase in barrier height is achieved by heating, preferably at substantially 500‹ C. for the examples quoted above. More than two metal layers may contribute to the Schottky contact, and a layer of Au may be situated on the uppermost of these metal layers. The invention is applicable to Schottky diode manufacture, but the embodiment illustrated is a field effect transistor formed in a body comprising an N-type Si epitaxial layer 3 on a P-type substrate 16. Phosphorus-diffused N<SP>+</SP>-type source and drain regions 17, 18 extend through the layer 3. A reverse-biased PN junction 23 between the layer 3 and the substrate 16 determines the lower limit of the channel, while the upper limit is defined by the Schottky barrier gate 20, formed in accordance with the invention. Source and drain electrodes 20, 21 are formed in the same manner as the gate 20 but, because of the heavy doping of the regions 17, 18, are ohmic.
Patent GB-903422-A (GB)
Title: Improvements in or relating to tobacco
IPC: A24B15/12
Filed: 1958-09-22
Abstract: Tobacco stems are steeped in water, cooked under pressure, beaten together with enough caustic alkali to break down the plant tissue and release its adhesive constituents, and acidified, the resultant pulp being used to adhere together dry ground tobacco, e.g. tobacco dust, for the formation of tobacco sheets on a machine of the metal plate, band or fine-screen type.  The stems are preferably macerated and the resulting fibres very finely chopped.  The adhesive constituents include polysaccharides of the hemicellulose or polyuronide groups, e.g. pectins.  The treatment may result in the formation of saltpetre.  A cross-linking agent such as a dialdehyde, e.g. glyoxal, or a calcium salt may be added to the beaten stems before or after acidification, and/or to the dry ground tobacco.  A quantitative process example is given in which potassium hydroxide is the caustic alkali and nitric acid is used for the acidification, whilst additional bearing is effected between the cooking and the alkali addition, and additional cooking after the alkali has been added but before the beating with it has taken place; glycerine or diethylene glycol is added as a bumectant, and the pulp, partially de-watered, if desired, is blended with a water slurry of the dry ground tobacco.  The sheets produced can be shreaded to provide a filler for pipes, cigarettes and cigars.
Patent GB-1206633-A (GB)
Title: Document presentation device
Inventor: VANDEPUT ANDRE
IPC: G03B27/62
Filed: 1967-06-30
Abstract: 1,206,633. Presenting documents for copying. RANK XEROX Ltd. June 28, 1968 [June 30, 1967], No.30213/67. Heading G2H. A device for presenting documents for copying in a copying machine having a copying aperture 12 over which items to be copied are laid, comprises a transparent plate 14 for supporting a document 15 over the aperture, a web 16 formed of individual overlays one of which is to be copied with the document 15 for the production of a composite image, and an electric motor 19 which drives supply and take up rollers 17, 18 so that a selected overlay can be copied with the document 15. The transparent plate 14 is mounted on rods (31) Fig. 3 (not shown) resting on cam bars (32) actuated longitudinally by means of a solenoid 34 to raise and lower the plate 14 by cam surfaces (33). The overlay web 16 is printed on a transparent film such as polyester. A control band formed of transparent and opaque regions co-operates with a light source and photo-electric cell to control the motor 19.
Patent GB-1299830-A (GB)
Title: Litter device
Inventor: STEELMAN GERALD ERWIN
IPC: A61G1/003
Filed: 1971-06-29
Abstract: 1299830 Stretchers G E STEELMAN 29 June 1971 [2 July 1970] 30346/71 Heading A5X A stretcher has a substantially rectangular frame comprising first and second pairs of parallel supporting members, a rectangular flexible sheet member 14, Fig. 1, wound into a roll 47, the sheet member having opposite ends, one of the ends being operatively attached to one of the supporting members of the first pair, an unrolling mechanism engaging the sheet member at 46, Fig. 3, said mechanism being movable to draw the sheet member toward the other supporting member of said first pair, whereby the sheet member is stretched across the space defined by the frame. The frame 12 is adjustable in width and comprises two generally U-shaped frame sections 16 and 18, the limbs of section 18 being telescopically received within the limbs of section 16 and being held in place by pins 31 received in registering openings in the sections. An elongated draw bar 41 extends approximately parallel to the frame member 24 and is provided with a plurality of bearing rollers 46, Fig. 3. The sheet member 14 passes around the rollers 46 and is unrolled from the roll 47 as the draw bar 41 is drawn along the length of the frame 12 by cables 50 and 52 secured to a shaft 54. Rotation of the shaft 54 is achieved by means of gears 60, 62 and a crank handle 64. Hook members 34. and (76), Fig. 4 (not shown), are provided for engagement in grommets (36) and (78, respectively, on the longitudinal sides of the sheet member 14. The hook members (76) are. provided on straps 74 which are secured to a shaft (66) mounted for rotation within the frame member 20. Rotation of the shaft 66 by means of gears and a crank handle 72 tensions the sheet member laterally. Retaining straps 82, 84, 86 and 88 are provided on the device for securing the patient thereon.
Patent GB-1278457-A (GB)
Title: Means for recording oral proprioception
IPC: A61C19/045
Filed: 1969-06-16
Abstract: 1278457 Recording mandibular movements UNIVERSITY OF SYDNEY 16 June 1969 [20 June 1968] 30414/69 Headings ASK and A5R [Also in Division G1] An apparatus for recording mandibular movements comprises an arm 29, Fig. 2, normally enclosed within covers 38, 39, 40, supporting a recording stylus 69 attached at one end by a chin strap 76 to a patient, and a recording apparatus including a guide frame 43 across which sheet material 45 may be moved. The sheet material is wound on two motor driven spools 50, and alternatively may be moved manually via flanges 51. The stylus is pivotable about a mounting 65 and includes a marking pen in contact with the sheet material 45 at one end, and a telescopic sleeve 74, at the other, attached to the chin strap 76 via a ball joint 75. The patient's head is secured in position by adjustable supports 79, 80 mounted on a support arm 24. The arm 29 carrying the recording apparatus is pivotable through 90‹ about a vertical axis 22 so that it may be in two fixed positions, the lateral position as shown, and a frontal position in which the patient faces the apparatus. The patient makes jaw opening movements which are recorded on the sheet material, and from which recordings an articulator, Figs. 6 and 7, (not shown) may be set up including a cast of the patients teeth and gums. Undesirable movements of the jaw, probably caused by faulty muscle action, may be corrected on the articulator by correction of the casts until ideal conditions are obtained, and these corrections later carried out on the patients teeth to produce correct jaw function. (For Figures see next column)
Patent GB-173652-A (GB)
Title: An improved sounding device for motor car horns and the like
IPC: G10K9/13
Filed: 1920-10-27
Abstract: 173,652. Lund, C. W. Oct. 27, 1920. Diaphragm vibrators. - The diaphragm of a motor or like horn is vibrated by alternating electric currents generated bv the reaction between the vibrator magnet and a microphone, which are in separate circuits coupled by a transformer. The microphone granules are contained in a pocket d formed in the partition D, and are covered by a plate M carrying the electrode l<1>. The microphone current passes through the primary coil of a transformer F, the secondarv of which is connected in parallel with a condenser F and in series with the receiver coils H<1>, H<2>. The receiver magnets act upon an armature I which is adjustably carried on the diaphragm K, the vibrations of which react on the microphone.
Patent GB-1514324-A (GB)
Title: Disinfectant and a method of preparing the same
IPC: A01N59/12
Filed: 1975-07-21
Abstract: 1514324 Iodophor disinfectant composition J A O JOHANSSON 21 July 1975 30460/75 Headings A5B and A5E [Also in Division C3] A disinfectant composition contains iodine complexed to a hydrophilic organic carrier, which complex is in the form of a three dimensional lattice, kept together by covalent bonds, and which is insoluble in water but capable of swelling in water to form a gel. The carrier can be prepared by a polymerisation/cross linking reaction of a polyhydroxylic organic substance by means of a bi-functional organic cross linking agent of the type Y-R-Z, where Y and Z each represent epoxy groups or halogen atoms and R is an aliphatic organic residue lacking dissociating groups. Suitable polyhydroxylic substances are monosaccharides, disaccharides, polysaccharides, synthetic polyhydroxylic polymers and sugar alcohols. By suitable substitution of the carrier with anionic or cationic groups iodophors can be prepared having also ion exchange properties. The composition may be formulated as a skin and wound cream.